mirror of https://gitee.com/openkylin/linux.git
10569 lines
265 KiB
C
10569 lines
265 KiB
C
/*
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* thinkpad_acpi.c - ThinkPad ACPI Extras
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*
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*
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* Copyright (C) 2004-2005 Borislav Deianov <borislav@users.sf.net>
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* Copyright (C) 2006-2009 Henrique de Moraes Holschuh <hmh@hmh.eng.br>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#define TPACPI_VERSION "0.26"
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#define TPACPI_SYSFS_VERSION 0x030000
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/*
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* Changelog:
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* 2007-10-20 changelog trimmed down
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*
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* 2007-03-27 0.14 renamed to thinkpad_acpi and moved to
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* drivers/misc.
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*
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* 2006-11-22 0.13 new maintainer
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* changelog now lives in git commit history, and will
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* not be updated further in-file.
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*
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* 2005-03-17 0.11 support for 600e, 770x
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* thanks to Jamie Lentin <lentinj@dial.pipex.com>
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*
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* 2005-01-16 0.9 use MODULE_VERSION
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* thanks to Henrik Brix Andersen <brix@gentoo.org>
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* fix parameter passing on module loading
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* thanks to Rusty Russell <rusty@rustcorp.com.au>
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* thanks to Jim Radford <radford@blackbean.org>
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* 2004-11-08 0.8 fix init error case, don't return from a macro
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* thanks to Chris Wright <chrisw@osdl.org>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <linux/list.h>
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#include <linux/mutex.h>
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#include <linux/sched.h>
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#include <linux/sched/signal.h>
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#include <linux/kthread.h>
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#include <linux/freezer.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/nvram.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/sysfs.h>
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#include <linux/backlight.h>
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#include <linux/bitops.h>
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#include <linux/fb.h>
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#include <linux/platform_device.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/input.h>
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#include <linux/leds.h>
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#include <linux/rfkill.h>
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#include <linux/dmi.h>
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#include <linux/jiffies.h>
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#include <linux/workqueue.h>
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#include <linux/acpi.h>
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#include <linux/pci.h>
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#include <linux/power_supply.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/initval.h>
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#include <linux/uaccess.h>
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#include <acpi/battery.h>
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#include <acpi/video.h>
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/* ThinkPad CMOS commands */
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#define TP_CMOS_VOLUME_DOWN 0
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#define TP_CMOS_VOLUME_UP 1
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#define TP_CMOS_VOLUME_MUTE 2
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#define TP_CMOS_BRIGHTNESS_UP 4
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#define TP_CMOS_BRIGHTNESS_DOWN 5
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#define TP_CMOS_THINKLIGHT_ON 12
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#define TP_CMOS_THINKLIGHT_OFF 13
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/* NVRAM Addresses */
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enum tp_nvram_addr {
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TP_NVRAM_ADDR_HK2 = 0x57,
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TP_NVRAM_ADDR_THINKLIGHT = 0x58,
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TP_NVRAM_ADDR_VIDEO = 0x59,
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TP_NVRAM_ADDR_BRIGHTNESS = 0x5e,
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TP_NVRAM_ADDR_MIXER = 0x60,
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};
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/* NVRAM bit masks */
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enum {
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TP_NVRAM_MASK_HKT_THINKPAD = 0x08,
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TP_NVRAM_MASK_HKT_ZOOM = 0x20,
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TP_NVRAM_MASK_HKT_DISPLAY = 0x40,
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TP_NVRAM_MASK_HKT_HIBERNATE = 0x80,
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TP_NVRAM_MASK_THINKLIGHT = 0x10,
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TP_NVRAM_MASK_HKT_DISPEXPND = 0x30,
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TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20,
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TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f,
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TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0,
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TP_NVRAM_MASK_MUTE = 0x40,
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TP_NVRAM_MASK_HKT_VOLUME = 0x80,
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TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f,
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TP_NVRAM_POS_LEVEL_VOLUME = 0,
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};
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/* Misc NVRAM-related */
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enum {
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TP_NVRAM_LEVEL_VOLUME_MAX = 14,
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};
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/* ACPI HIDs */
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#define TPACPI_ACPI_IBM_HKEY_HID "IBM0068"
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#define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068"
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#define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268"
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#define TPACPI_ACPI_EC_HID "PNP0C09"
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/* Input IDs */
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#define TPACPI_HKEY_INPUT_PRODUCT 0x5054 /* "TP" */
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#define TPACPI_HKEY_INPUT_VERSION 0x4101
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/* ACPI \WGSV commands */
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enum {
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TP_ACPI_WGSV_GET_STATE = 0x01, /* Get state information */
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TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02, /* Resume WWAN powered on */
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TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03, /* Resume WWAN powered off */
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TP_ACPI_WGSV_SAVE_STATE = 0x04, /* Save state for S4/S5 */
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};
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/* TP_ACPI_WGSV_GET_STATE bits */
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enum {
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TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001, /* WWAN hw available */
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TP_ACPI_WGSV_STATE_WWANPWR = 0x0002, /* WWAN radio enabled */
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TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004, /* WWAN state at resume */
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TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008, /* WWAN disabled in BIOS */
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TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001, /* BLTH hw available */
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TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002, /* BLTH radio enabled */
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TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004, /* BLTH state at resume */
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TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008, /* BLTH disabled in BIOS */
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TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010, /* UWB hw available */
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TP_ACPI_WGSV_STATE_UWBPWR = 0x0020, /* UWB radio enabled */
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};
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/* HKEY events */
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enum tpacpi_hkey_event_t {
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/* Hotkey-related */
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TP_HKEY_EV_HOTKEY_BASE = 0x1001, /* first hotkey (FN+F1) */
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TP_HKEY_EV_BRGHT_UP = 0x1010, /* Brightness up */
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TP_HKEY_EV_BRGHT_DOWN = 0x1011, /* Brightness down */
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TP_HKEY_EV_KBD_LIGHT = 0x1012, /* Thinklight/kbd backlight */
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TP_HKEY_EV_VOL_UP = 0x1015, /* Volume up or unmute */
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TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */
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TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */
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/* Reasons for waking up from S3/S4 */
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TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */
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TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404, /* undock requested, S4 */
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TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305, /* bay ejection req, S3 */
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TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405, /* bay ejection req, S4 */
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TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313, /* battery empty, S3 */
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TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413, /* battery empty, S4 */
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/* Auto-sleep after eject request */
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TP_HKEY_EV_BAYEJ_ACK = 0x3003, /* bay ejection complete */
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TP_HKEY_EV_UNDOCK_ACK = 0x4003, /* undock complete */
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/* Misc bay events */
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TP_HKEY_EV_OPTDRV_EJ = 0x3006, /* opt. drive tray ejected */
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TP_HKEY_EV_HOTPLUG_DOCK = 0x4010, /* docked into hotplug dock
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or port replicator */
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TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011, /* undocked from hotplug
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dock or port replicator */
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/* User-interface events */
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TP_HKEY_EV_LID_CLOSE = 0x5001, /* laptop lid closed */
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TP_HKEY_EV_LID_OPEN = 0x5002, /* laptop lid opened */
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TP_HKEY_EV_TABLET_TABLET = 0x5009, /* tablet swivel up */
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TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a, /* tablet swivel down */
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TP_HKEY_EV_TABLET_CHANGED = 0x60c0, /* X1 Yoga (2016):
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* enter/leave tablet mode
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*/
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TP_HKEY_EV_PEN_INSERTED = 0x500b, /* tablet pen inserted */
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TP_HKEY_EV_PEN_REMOVED = 0x500c, /* tablet pen removed */
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TP_HKEY_EV_BRGHT_CHANGED = 0x5010, /* backlight control event */
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/* Key-related user-interface events */
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TP_HKEY_EV_KEY_NUMLOCK = 0x6000, /* NumLock key pressed */
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TP_HKEY_EV_KEY_FN = 0x6005, /* Fn key pressed? E420 */
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TP_HKEY_EV_KEY_FN_ESC = 0x6060, /* Fn+Esc key pressed X240 */
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/* Thermal events */
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TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */
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TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */
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TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */
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TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */
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TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* windows; thermal table changed */
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TP_HKEY_EV_THM_CSM_COMPLETED = 0x6032, /* windows; thermal control set
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* command completed. Related to
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* AML DYTC */
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TP_HKEY_EV_THM_TRANSFM_CHANGED = 0x60F0, /* windows; thermal transformation
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* changed. Related to AML GMTS */
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/* AC-related events */
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TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */
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/* Further user-interface events */
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TP_HKEY_EV_PALM_DETECTED = 0x60b0, /* palm hoveres keyboard */
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TP_HKEY_EV_PALM_UNDETECTED = 0x60b1, /* palm removed */
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/* Misc */
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TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */
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};
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/****************************************************************************
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* Main driver
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*/
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#define TPACPI_NAME "thinkpad"
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#define TPACPI_DESC "ThinkPad ACPI Extras"
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#define TPACPI_FILE TPACPI_NAME "_acpi"
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#define TPACPI_URL "http://ibm-acpi.sf.net/"
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#define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net"
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#define TPACPI_PROC_DIR "ibm"
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#define TPACPI_ACPI_EVENT_PREFIX "ibm"
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#define TPACPI_DRVR_NAME TPACPI_FILE
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#define TPACPI_DRVR_SHORTNAME "tpacpi"
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#define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon"
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#define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd"
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#define TPACPI_WORKQUEUE_NAME "ktpacpid"
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#define TPACPI_MAX_ACPI_ARGS 3
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/* Debugging printk groups */
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#define TPACPI_DBG_ALL 0xffff
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#define TPACPI_DBG_DISCLOSETASK 0x8000
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#define TPACPI_DBG_INIT 0x0001
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#define TPACPI_DBG_EXIT 0x0002
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#define TPACPI_DBG_RFKILL 0x0004
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#define TPACPI_DBG_HKEY 0x0008
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#define TPACPI_DBG_FAN 0x0010
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#define TPACPI_DBG_BRGHT 0x0020
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#define TPACPI_DBG_MIXER 0x0040
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#define onoff(status, bit) ((status) & (1 << (bit)) ? "on" : "off")
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#define enabled(status, bit) ((status) & (1 << (bit)) ? "enabled" : "disabled")
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#define strlencmp(a, b) (strncmp((a), (b), strlen(b)))
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/****************************************************************************
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* Driver-wide structs and misc. variables
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*/
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struct ibm_struct;
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struct tp_acpi_drv_struct {
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const struct acpi_device_id *hid;
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struct acpi_driver *driver;
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void (*notify) (struct ibm_struct *, u32);
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acpi_handle *handle;
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u32 type;
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struct acpi_device *device;
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};
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struct ibm_struct {
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char *name;
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int (*read) (struct seq_file *);
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int (*write) (char *);
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void (*exit) (void);
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void (*resume) (void);
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void (*suspend) (void);
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void (*shutdown) (void);
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struct list_head all_drivers;
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struct tp_acpi_drv_struct *acpi;
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struct {
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u8 acpi_driver_registered:1;
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u8 acpi_notify_installed:1;
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u8 proc_created:1;
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u8 init_called:1;
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u8 experimental:1;
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} flags;
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};
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struct ibm_init_struct {
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char param[32];
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int (*init) (struct ibm_init_struct *);
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umode_t base_procfs_mode;
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struct ibm_struct *data;
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};
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static struct {
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u32 bluetooth:1;
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u32 hotkey:1;
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u32 hotkey_mask:1;
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u32 hotkey_wlsw:1;
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enum {
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TP_HOTKEY_TABLET_NONE = 0,
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TP_HOTKEY_TABLET_USES_MHKG,
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TP_HOTKEY_TABLET_USES_GMMS,
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} hotkey_tablet;
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u32 kbdlight:1;
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u32 light:1;
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u32 light_status:1;
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u32 bright_acpimode:1;
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u32 bright_unkfw:1;
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u32 wan:1;
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u32 uwb:1;
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u32 fan_ctrl_status_undef:1;
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u32 second_fan:1;
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u32 beep_needs_two_args:1;
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u32 mixer_no_level_control:1;
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u32 battery_force_primary:1;
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u32 input_device_registered:1;
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u32 platform_drv_registered:1;
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u32 platform_drv_attrs_registered:1;
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u32 sensors_pdrv_registered:1;
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u32 sensors_pdrv_attrs_registered:1;
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u32 sensors_pdev_attrs_registered:1;
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u32 hotkey_poll_active:1;
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u32 has_adaptive_kbd:1;
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} tp_features;
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static struct {
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u16 hotkey_mask_ff:1;
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u16 volume_ctrl_forbidden:1;
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} tp_warned;
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struct thinkpad_id_data {
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unsigned int vendor; /* ThinkPad vendor:
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* PCI_VENDOR_ID_IBM/PCI_VENDOR_ID_LENOVO */
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char *bios_version_str; /* Something like 1ZET51WW (1.03z) */
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char *ec_version_str; /* Something like 1ZHT51WW-1.04a */
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u32 bios_model; /* 1Y = 0x3159, 0 = unknown */
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u32 ec_model;
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u16 bios_release; /* 1ZETK1WW = 0x4b31, 0 = unknown */
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u16 ec_release;
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char *model_str; /* ThinkPad T43 */
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char *nummodel_str; /* 9384A9C for a 9384-A9C model */
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};
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static struct thinkpad_id_data thinkpad_id;
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static enum {
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TPACPI_LIFE_INIT = 0,
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TPACPI_LIFE_RUNNING,
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TPACPI_LIFE_EXITING,
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} tpacpi_lifecycle;
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static int experimental;
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static u32 dbg_level;
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static struct workqueue_struct *tpacpi_wq;
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enum led_status_t {
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TPACPI_LED_OFF = 0,
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TPACPI_LED_ON,
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TPACPI_LED_BLINK,
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};
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/* tpacpi LED class */
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struct tpacpi_led_classdev {
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struct led_classdev led_classdev;
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int led;
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};
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/* brightness level capabilities */
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static unsigned int bright_maxlvl; /* 0 = unknown */
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#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
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static int dbg_wlswemul;
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static bool tpacpi_wlsw_emulstate;
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static int dbg_bluetoothemul;
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static bool tpacpi_bluetooth_emulstate;
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static int dbg_wwanemul;
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static bool tpacpi_wwan_emulstate;
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static int dbg_uwbemul;
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static bool tpacpi_uwb_emulstate;
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#endif
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/*************************************************************************
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* Debugging helpers
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*/
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#define dbg_printk(a_dbg_level, format, arg...) \
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do { \
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if (dbg_level & (a_dbg_level)) \
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printk(KERN_DEBUG pr_fmt("%s: " format), \
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__func__, ##arg); \
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} while (0)
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#ifdef CONFIG_THINKPAD_ACPI_DEBUG
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#define vdbg_printk dbg_printk
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static const char *str_supported(int is_supported);
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#else
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static inline const char *str_supported(int is_supported) { return ""; }
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#define vdbg_printk(a_dbg_level, format, arg...) \
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do { if (0) no_printk(format, ##arg); } while (0)
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#endif
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static void tpacpi_log_usertask(const char * const what)
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{
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printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"),
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what, task_tgid_vnr(current));
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}
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#define tpacpi_disclose_usertask(what, format, arg...) \
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do { \
|
|
if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \
|
|
(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \
|
|
printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \
|
|
what, task_tgid_vnr(current), ## arg); \
|
|
} \
|
|
} while (0)
|
|
|
|
/*
|
|
* Quirk handling helpers
|
|
*
|
|
* ThinkPad IDs and versions seen in the field so far are
|
|
* two or three characters from the set [0-9A-Z], i.e. base 36.
|
|
*
|
|
* We use values well outside that range as specials.
|
|
*/
|
|
|
|
#define TPACPI_MATCH_ANY 0xffffffffU
|
|
#define TPACPI_MATCH_ANY_VERSION 0xffffU
|
|
#define TPACPI_MATCH_UNKNOWN 0U
|
|
|
|
/* TPID('1', 'Y') == 0x3159 */
|
|
#define TPID(__c1, __c2) (((__c1) << 8) | (__c2))
|
|
#define TPID3(__c1, __c2, __c3) (((__c1) << 16) | ((__c2) << 8) | (__c3))
|
|
#define TPVER TPID
|
|
|
|
#define TPACPI_Q_IBM(__id1, __id2, __quirk) \
|
|
{ .vendor = PCI_VENDOR_ID_IBM, \
|
|
.bios = TPID(__id1, __id2), \
|
|
.ec = TPACPI_MATCH_ANY, \
|
|
.quirks = (__quirk) }
|
|
|
|
#define TPACPI_Q_LNV(__id1, __id2, __quirk) \
|
|
{ .vendor = PCI_VENDOR_ID_LENOVO, \
|
|
.bios = TPID(__id1, __id2), \
|
|
.ec = TPACPI_MATCH_ANY, \
|
|
.quirks = (__quirk) }
|
|
|
|
#define TPACPI_Q_LNV3(__id1, __id2, __id3, __quirk) \
|
|
{ .vendor = PCI_VENDOR_ID_LENOVO, \
|
|
.bios = TPID3(__id1, __id2, __id3), \
|
|
.ec = TPACPI_MATCH_ANY, \
|
|
.quirks = (__quirk) }
|
|
|
|
#define TPACPI_QEC_IBM(__id1, __id2, __quirk) \
|
|
{ .vendor = PCI_VENDOR_ID_IBM, \
|
|
.bios = TPACPI_MATCH_ANY, \
|
|
.ec = TPID(__id1, __id2), \
|
|
.quirks = (__quirk) }
|
|
|
|
#define TPACPI_QEC_LNV(__id1, __id2, __quirk) \
|
|
{ .vendor = PCI_VENDOR_ID_LENOVO, \
|
|
.bios = TPACPI_MATCH_ANY, \
|
|
.ec = TPID(__id1, __id2), \
|
|
.quirks = (__quirk) }
|
|
|
|
struct tpacpi_quirk {
|
|
unsigned int vendor;
|
|
u32 bios;
|
|
u32 ec;
|
|
unsigned long quirks;
|
|
};
|
|
|
|
/**
|
|
* tpacpi_check_quirks() - search BIOS/EC version on a list
|
|
* @qlist: array of &struct tpacpi_quirk
|
|
* @qlist_size: number of elements in @qlist
|
|
*
|
|
* Iterates over a quirks list until one is found that matches the
|
|
* ThinkPad's vendor, BIOS and EC model.
|
|
*
|
|
* Returns 0 if nothing matches, otherwise returns the quirks field of
|
|
* the matching &struct tpacpi_quirk entry.
|
|
*
|
|
* The match criteria is: vendor, ec and bios much match.
|
|
*/
|
|
static unsigned long __init tpacpi_check_quirks(
|
|
const struct tpacpi_quirk *qlist,
|
|
unsigned int qlist_size)
|
|
{
|
|
while (qlist_size) {
|
|
if ((qlist->vendor == thinkpad_id.vendor ||
|
|
qlist->vendor == TPACPI_MATCH_ANY) &&
|
|
(qlist->bios == thinkpad_id.bios_model ||
|
|
qlist->bios == TPACPI_MATCH_ANY) &&
|
|
(qlist->ec == thinkpad_id.ec_model ||
|
|
qlist->ec == TPACPI_MATCH_ANY))
|
|
return qlist->quirks;
|
|
|
|
qlist_size--;
|
|
qlist++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline bool __pure __init tpacpi_is_lenovo(void)
|
|
{
|
|
return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO;
|
|
}
|
|
|
|
static inline bool __pure __init tpacpi_is_ibm(void)
|
|
{
|
|
return thinkpad_id.vendor == PCI_VENDOR_ID_IBM;
|
|
}
|
|
|
|
/****************************************************************************
|
|
****************************************************************************
|
|
*
|
|
* ACPI Helpers and device model
|
|
*
|
|
****************************************************************************
|
|
****************************************************************************/
|
|
|
|
/*************************************************************************
|
|
* ACPI basic handles
|
|
*/
|
|
|
|
static acpi_handle root_handle;
|
|
static acpi_handle ec_handle;
|
|
|
|
#define TPACPI_HANDLE(object, parent, paths...) \
|
|
static acpi_handle object##_handle; \
|
|
static const acpi_handle * const object##_parent __initconst = \
|
|
&parent##_handle; \
|
|
static char *object##_paths[] __initdata = { paths }
|
|
|
|
TPACPI_HANDLE(ecrd, ec, "ECRD"); /* 570 */
|
|
TPACPI_HANDLE(ecwr, ec, "ECWR"); /* 570 */
|
|
|
|
TPACPI_HANDLE(cmos, root, "\\UCMS", /* R50, R50e, R50p, R51, */
|
|
/* T4x, X31, X40 */
|
|
"\\CMOS", /* A3x, G4x, R32, T23, T30, X22-24, X30 */
|
|
"\\CMS", /* R40, R40e */
|
|
); /* all others */
|
|
|
|
TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY", /* 600e/x, 770e, 770x */
|
|
"^HKEY", /* R30, R31 */
|
|
"HKEY", /* all others */
|
|
); /* 570 */
|
|
|
|
/*************************************************************************
|
|
* ACPI helpers
|
|
*/
|
|
|
|
static int acpi_evalf(acpi_handle handle,
|
|
int *res, char *method, char *fmt, ...)
|
|
{
|
|
char *fmt0 = fmt;
|
|
struct acpi_object_list params;
|
|
union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS];
|
|
struct acpi_buffer result, *resultp;
|
|
union acpi_object out_obj;
|
|
acpi_status status;
|
|
va_list ap;
|
|
char res_type;
|
|
int success;
|
|
int quiet;
|
|
|
|
if (!*fmt) {
|
|
pr_err("acpi_evalf() called with empty format\n");
|
|
return 0;
|
|
}
|
|
|
|
if (*fmt == 'q') {
|
|
quiet = 1;
|
|
fmt++;
|
|
} else
|
|
quiet = 0;
|
|
|
|
res_type = *(fmt++);
|
|
|
|
params.count = 0;
|
|
params.pointer = &in_objs[0];
|
|
|
|
va_start(ap, fmt);
|
|
while (*fmt) {
|
|
char c = *(fmt++);
|
|
switch (c) {
|
|
case 'd': /* int */
|
|
in_objs[params.count].integer.value = va_arg(ap, int);
|
|
in_objs[params.count++].type = ACPI_TYPE_INTEGER;
|
|
break;
|
|
/* add more types as needed */
|
|
default:
|
|
pr_err("acpi_evalf() called with invalid format character '%c'\n",
|
|
c);
|
|
va_end(ap);
|
|
return 0;
|
|
}
|
|
}
|
|
va_end(ap);
|
|
|
|
if (res_type != 'v') {
|
|
result.length = sizeof(out_obj);
|
|
result.pointer = &out_obj;
|
|
resultp = &result;
|
|
} else
|
|
resultp = NULL;
|
|
|
|
status = acpi_evaluate_object(handle, method, ¶ms, resultp);
|
|
|
|
switch (res_type) {
|
|
case 'd': /* int */
|
|
success = (status == AE_OK &&
|
|
out_obj.type == ACPI_TYPE_INTEGER);
|
|
if (success && res)
|
|
*res = out_obj.integer.value;
|
|
break;
|
|
case 'v': /* void */
|
|
success = status == AE_OK;
|
|
break;
|
|
/* add more types as needed */
|
|
default:
|
|
pr_err("acpi_evalf() called with invalid format character '%c'\n",
|
|
res_type);
|
|
return 0;
|
|
}
|
|
|
|
if (!success && !quiet)
|
|
pr_err("acpi_evalf(%s, %s, ...) failed: %s\n",
|
|
method, fmt0, acpi_format_exception(status));
|
|
|
|
return success;
|
|
}
|
|
|
|
static int acpi_ec_read(int i, u8 *p)
|
|
{
|
|
int v;
|
|
|
|
if (ecrd_handle) {
|
|
if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i))
|
|
return 0;
|
|
*p = v;
|
|
} else {
|
|
if (ec_read(i, p) < 0)
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int acpi_ec_write(int i, u8 v)
|
|
{
|
|
if (ecwr_handle) {
|
|
if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v))
|
|
return 0;
|
|
} else {
|
|
if (ec_write(i, v) < 0)
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int issue_thinkpad_cmos_command(int cmos_cmd)
|
|
{
|
|
if (!cmos_handle)
|
|
return -ENXIO;
|
|
|
|
if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* ACPI device model
|
|
*/
|
|
|
|
#define TPACPI_ACPIHANDLE_INIT(object) \
|
|
drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
|
|
object##_paths, ARRAY_SIZE(object##_paths))
|
|
|
|
static void __init drv_acpi_handle_init(const char *name,
|
|
acpi_handle *handle, const acpi_handle parent,
|
|
char **paths, const int num_paths)
|
|
{
|
|
int i;
|
|
acpi_status status;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n",
|
|
name);
|
|
|
|
for (i = 0; i < num_paths; i++) {
|
|
status = acpi_get_handle(parent, paths[i], handle);
|
|
if (ACPI_SUCCESS(status)) {
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"Found ACPI handle %s for %s\n",
|
|
paths[i], name);
|
|
return;
|
|
}
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n",
|
|
name);
|
|
*handle = NULL;
|
|
}
|
|
|
|
static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle,
|
|
u32 level, void *context, void **return_value)
|
|
{
|
|
struct acpi_device *dev;
|
|
if (!strcmp(context, "video")) {
|
|
if (acpi_bus_get_device(handle, &dev))
|
|
return AE_OK;
|
|
if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev)))
|
|
return AE_OK;
|
|
}
|
|
|
|
*(acpi_handle *)return_value = handle;
|
|
|
|
return AE_CTRL_TERMINATE;
|
|
}
|
|
|
|
static void __init tpacpi_acpi_handle_locate(const char *name,
|
|
const char *hid,
|
|
acpi_handle *handle)
|
|
{
|
|
acpi_status status;
|
|
acpi_handle device_found;
|
|
|
|
BUG_ON(!name || !handle);
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
"trying to locate ACPI handle for %s, using HID %s\n",
|
|
name, hid ? hid : "NULL");
|
|
|
|
memset(&device_found, 0, sizeof(device_found));
|
|
status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
|
|
(void *)name, &device_found);
|
|
|
|
*handle = NULL;
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
*handle = device_found;
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"Found ACPI handle for %s\n", name);
|
|
} else {
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
"Could not locate an ACPI handle for %s: %s\n",
|
|
name, acpi_format_exception(status));
|
|
}
|
|
}
|
|
|
|
static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
|
|
{
|
|
struct ibm_struct *ibm = data;
|
|
|
|
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
|
|
return;
|
|
|
|
if (!ibm || !ibm->acpi || !ibm->acpi->notify)
|
|
return;
|
|
|
|
ibm->acpi->notify(ibm, event);
|
|
}
|
|
|
|
static int __init setup_acpi_notify(struct ibm_struct *ibm)
|
|
{
|
|
acpi_status status;
|
|
int rc;
|
|
|
|
BUG_ON(!ibm->acpi);
|
|
|
|
if (!*ibm->acpi->handle)
|
|
return 0;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
"setting up ACPI notify for %s\n", ibm->name);
|
|
|
|
rc = acpi_bus_get_device(*ibm->acpi->handle, &ibm->acpi->device);
|
|
if (rc < 0) {
|
|
pr_err("acpi_bus_get_device(%s) failed: %d\n", ibm->name, rc);
|
|
return -ENODEV;
|
|
}
|
|
|
|
ibm->acpi->device->driver_data = ibm;
|
|
sprintf(acpi_device_class(ibm->acpi->device), "%s/%s",
|
|
TPACPI_ACPI_EVENT_PREFIX,
|
|
ibm->name);
|
|
|
|
status = acpi_install_notify_handler(*ibm->acpi->handle,
|
|
ibm->acpi->type, dispatch_acpi_notify, ibm);
|
|
if (ACPI_FAILURE(status)) {
|
|
if (status == AE_ALREADY_EXISTS) {
|
|
pr_notice("another device driver is already handling %s events\n",
|
|
ibm->name);
|
|
} else {
|
|
pr_err("acpi_install_notify_handler(%s) failed: %s\n",
|
|
ibm->name, acpi_format_exception(status));
|
|
}
|
|
return -ENODEV;
|
|
}
|
|
ibm->flags.acpi_notify_installed = 1;
|
|
return 0;
|
|
}
|
|
|
|
static int __init tpacpi_device_add(struct acpi_device *device)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int __init register_tpacpi_subdriver(struct ibm_struct *ibm)
|
|
{
|
|
int rc;
|
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"registering %s as an ACPI driver\n", ibm->name);
|
|
|
|
BUG_ON(!ibm->acpi);
|
|
|
|
ibm->acpi->driver = kzalloc(sizeof(struct acpi_driver), GFP_KERNEL);
|
|
if (!ibm->acpi->driver) {
|
|
pr_err("failed to allocate memory for ibm->acpi->driver\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
sprintf(ibm->acpi->driver->name, "%s_%s", TPACPI_NAME, ibm->name);
|
|
ibm->acpi->driver->ids = ibm->acpi->hid;
|
|
|
|
ibm->acpi->driver->ops.add = &tpacpi_device_add;
|
|
|
|
rc = acpi_bus_register_driver(ibm->acpi->driver);
|
|
if (rc < 0) {
|
|
pr_err("acpi_bus_register_driver(%s) failed: %d\n",
|
|
ibm->name, rc);
|
|
kfree(ibm->acpi->driver);
|
|
ibm->acpi->driver = NULL;
|
|
} else if (!rc)
|
|
ibm->flags.acpi_driver_registered = 1;
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
****************************************************************************
|
|
*
|
|
* Procfs Helpers
|
|
*
|
|
****************************************************************************
|
|
****************************************************************************/
|
|
|
|
static int dispatch_proc_show(struct seq_file *m, void *v)
|
|
{
|
|
struct ibm_struct *ibm = m->private;
|
|
|
|
if (!ibm || !ibm->read)
|
|
return -EINVAL;
|
|
return ibm->read(m);
|
|
}
|
|
|
|
static int dispatch_proc_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, dispatch_proc_show, PDE_DATA(inode));
|
|
}
|
|
|
|
static ssize_t dispatch_proc_write(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *pos)
|
|
{
|
|
struct ibm_struct *ibm = PDE_DATA(file_inode(file));
|
|
char *kernbuf;
|
|
int ret;
|
|
|
|
if (!ibm || !ibm->write)
|
|
return -EINVAL;
|
|
if (count > PAGE_SIZE - 2)
|
|
return -EINVAL;
|
|
|
|
kernbuf = kmalloc(count + 2, GFP_KERNEL);
|
|
if (!kernbuf)
|
|
return -ENOMEM;
|
|
|
|
if (copy_from_user(kernbuf, userbuf, count)) {
|
|
kfree(kernbuf);
|
|
return -EFAULT;
|
|
}
|
|
|
|
kernbuf[count] = 0;
|
|
strcat(kernbuf, ",");
|
|
ret = ibm->write(kernbuf);
|
|
if (ret == 0)
|
|
ret = count;
|
|
|
|
kfree(kernbuf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct file_operations dispatch_proc_fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = dispatch_proc_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
.write = dispatch_proc_write,
|
|
};
|
|
|
|
static char *next_cmd(char **cmds)
|
|
{
|
|
char *start = *cmds;
|
|
char *end;
|
|
|
|
while ((end = strchr(start, ',')) && end == start)
|
|
start = end + 1;
|
|
|
|
if (!end)
|
|
return NULL;
|
|
|
|
*end = 0;
|
|
*cmds = end + 1;
|
|
return start;
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
****************************************************************************
|
|
*
|
|
* Device model: input, hwmon and platform
|
|
*
|
|
****************************************************************************
|
|
****************************************************************************/
|
|
|
|
static struct platform_device *tpacpi_pdev;
|
|
static struct platform_device *tpacpi_sensors_pdev;
|
|
static struct device *tpacpi_hwmon;
|
|
static struct input_dev *tpacpi_inputdev;
|
|
static struct mutex tpacpi_inputdev_send_mutex;
|
|
static LIST_HEAD(tpacpi_all_drivers);
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static int tpacpi_suspend_handler(struct device *dev)
|
|
{
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
list_for_each_entry_safe(ibm, itmp,
|
|
&tpacpi_all_drivers,
|
|
all_drivers) {
|
|
if (ibm->suspend)
|
|
(ibm->suspend)();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tpacpi_resume_handler(struct device *dev)
|
|
{
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
list_for_each_entry_safe(ibm, itmp,
|
|
&tpacpi_all_drivers,
|
|
all_drivers) {
|
|
if (ibm->resume)
|
|
(ibm->resume)();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static SIMPLE_DEV_PM_OPS(tpacpi_pm,
|
|
tpacpi_suspend_handler, tpacpi_resume_handler);
|
|
|
|
static void tpacpi_shutdown_handler(struct platform_device *pdev)
|
|
{
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
list_for_each_entry_safe(ibm, itmp,
|
|
&tpacpi_all_drivers,
|
|
all_drivers) {
|
|
if (ibm->shutdown)
|
|
(ibm->shutdown)();
|
|
}
|
|
}
|
|
|
|
static struct platform_driver tpacpi_pdriver = {
|
|
.driver = {
|
|
.name = TPACPI_DRVR_NAME,
|
|
.pm = &tpacpi_pm,
|
|
},
|
|
.shutdown = tpacpi_shutdown_handler,
|
|
};
|
|
|
|
static struct platform_driver tpacpi_hwmon_pdriver = {
|
|
.driver = {
|
|
.name = TPACPI_HWMON_DRVR_NAME,
|
|
},
|
|
};
|
|
|
|
/*************************************************************************
|
|
* sysfs support helpers
|
|
*/
|
|
|
|
struct attribute_set {
|
|
unsigned int members, max_members;
|
|
struct attribute_group group;
|
|
};
|
|
|
|
struct attribute_set_obj {
|
|
struct attribute_set s;
|
|
struct attribute *a;
|
|
} __attribute__((packed));
|
|
|
|
static struct attribute_set *create_attr_set(unsigned int max_members,
|
|
const char *name)
|
|
{
|
|
struct attribute_set_obj *sobj;
|
|
|
|
if (max_members == 0)
|
|
return NULL;
|
|
|
|
/* Allocates space for implicit NULL at the end too */
|
|
sobj = kzalloc(sizeof(struct attribute_set_obj) +
|
|
max_members * sizeof(struct attribute *),
|
|
GFP_KERNEL);
|
|
if (!sobj)
|
|
return NULL;
|
|
sobj->s.max_members = max_members;
|
|
sobj->s.group.attrs = &sobj->a;
|
|
sobj->s.group.name = name;
|
|
|
|
return &sobj->s;
|
|
}
|
|
|
|
#define destroy_attr_set(_set) \
|
|
kfree(_set);
|
|
|
|
/* not multi-threaded safe, use it in a single thread per set */
|
|
static int add_to_attr_set(struct attribute_set *s, struct attribute *attr)
|
|
{
|
|
if (!s || !attr)
|
|
return -EINVAL;
|
|
|
|
if (s->members >= s->max_members)
|
|
return -ENOMEM;
|
|
|
|
s->group.attrs[s->members] = attr;
|
|
s->members++;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int add_many_to_attr_set(struct attribute_set *s,
|
|
struct attribute **attr,
|
|
unsigned int count)
|
|
{
|
|
int i, res;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
res = add_to_attr_set(s, attr[i]);
|
|
if (res)
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void delete_attr_set(struct attribute_set *s, struct kobject *kobj)
|
|
{
|
|
sysfs_remove_group(kobj, &s->group);
|
|
destroy_attr_set(s);
|
|
}
|
|
|
|
#define register_attr_set_with_sysfs(_attr_set, _kobj) \
|
|
sysfs_create_group(_kobj, &_attr_set->group)
|
|
|
|
static int parse_strtoul(const char *buf,
|
|
unsigned long max, unsigned long *value)
|
|
{
|
|
char *endp;
|
|
|
|
*value = simple_strtoul(skip_spaces(buf), &endp, 0);
|
|
endp = skip_spaces(endp);
|
|
if (*endp || *value > max)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tpacpi_disable_brightness_delay(void)
|
|
{
|
|
if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0))
|
|
pr_notice("ACPI backlight control delay disabled\n");
|
|
}
|
|
|
|
static void printk_deprecated_attribute(const char * const what,
|
|
const char * const details)
|
|
{
|
|
tpacpi_log_usertask("deprecated sysfs attribute");
|
|
pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n",
|
|
what, details);
|
|
}
|
|
|
|
/*************************************************************************
|
|
* rfkill and radio control support helpers
|
|
*/
|
|
|
|
/*
|
|
* ThinkPad-ACPI firmware handling model:
|
|
*
|
|
* WLSW (master wireless switch) is event-driven, and is common to all
|
|
* firmware-controlled radios. It cannot be controlled, just monitored,
|
|
* as expected. It overrides all radio state in firmware
|
|
*
|
|
* The kernel, a masked-off hotkey, and WLSW can change the radio state
|
|
* (TODO: verify how WLSW interacts with the returned radio state).
|
|
*
|
|
* The only time there are shadow radio state changes, is when
|
|
* masked-off hotkeys are used.
|
|
*/
|
|
|
|
/*
|
|
* Internal driver API for radio state:
|
|
*
|
|
* int: < 0 = error, otherwise enum tpacpi_rfkill_state
|
|
* bool: true means radio blocked (off)
|
|
*/
|
|
enum tpacpi_rfkill_state {
|
|
TPACPI_RFK_RADIO_OFF = 0,
|
|
TPACPI_RFK_RADIO_ON
|
|
};
|
|
|
|
/* rfkill switches */
|
|
enum tpacpi_rfk_id {
|
|
TPACPI_RFK_BLUETOOTH_SW_ID = 0,
|
|
TPACPI_RFK_WWAN_SW_ID,
|
|
TPACPI_RFK_UWB_SW_ID,
|
|
TPACPI_RFK_SW_MAX
|
|
};
|
|
|
|
static const char *tpacpi_rfkill_names[] = {
|
|
[TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth",
|
|
[TPACPI_RFK_WWAN_SW_ID] = "wwan",
|
|
[TPACPI_RFK_UWB_SW_ID] = "uwb",
|
|
[TPACPI_RFK_SW_MAX] = NULL
|
|
};
|
|
|
|
/* ThinkPad-ACPI rfkill subdriver */
|
|
struct tpacpi_rfk {
|
|
struct rfkill *rfkill;
|
|
enum tpacpi_rfk_id id;
|
|
const struct tpacpi_rfk_ops *ops;
|
|
};
|
|
|
|
struct tpacpi_rfk_ops {
|
|
/* firmware interface */
|
|
int (*get_status)(void);
|
|
int (*set_status)(const enum tpacpi_rfkill_state);
|
|
};
|
|
|
|
static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX];
|
|
|
|
/* Query FW and update rfkill sw state for a given rfkill switch */
|
|
static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk)
|
|
{
|
|
int status;
|
|
|
|
if (!tp_rfk)
|
|
return -ENODEV;
|
|
|
|
status = (tp_rfk->ops->get_status)();
|
|
if (status < 0)
|
|
return status;
|
|
|
|
rfkill_set_sw_state(tp_rfk->rfkill,
|
|
(status == TPACPI_RFK_RADIO_OFF));
|
|
|
|
return status;
|
|
}
|
|
|
|
/* Query FW and update rfkill sw state for all rfkill switches */
|
|
static void tpacpi_rfk_update_swstate_all(void)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < TPACPI_RFK_SW_MAX; i++)
|
|
tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[i]);
|
|
}
|
|
|
|
/*
|
|
* Sync the HW-blocking state of all rfkill switches,
|
|
* do notice it causes the rfkill core to schedule uevents
|
|
*/
|
|
static void tpacpi_rfk_update_hwblock_state(bool blocked)
|
|
{
|
|
unsigned int i;
|
|
struct tpacpi_rfk *tp_rfk;
|
|
|
|
for (i = 0; i < TPACPI_RFK_SW_MAX; i++) {
|
|
tp_rfk = tpacpi_rfkill_switches[i];
|
|
if (tp_rfk) {
|
|
if (rfkill_set_hw_state(tp_rfk->rfkill,
|
|
blocked)) {
|
|
/* ignore -- we track sw block */
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Call to get the WLSW state from the firmware */
|
|
static int hotkey_get_wlsw(void);
|
|
|
|
/* Call to query WLSW state and update all rfkill switches */
|
|
static bool tpacpi_rfk_check_hwblock_state(void)
|
|
{
|
|
int res = hotkey_get_wlsw();
|
|
int hw_blocked;
|
|
|
|
/* When unknown or unsupported, we have to assume it is unblocked */
|
|
if (res < 0)
|
|
return false;
|
|
|
|
hw_blocked = (res == TPACPI_RFK_RADIO_OFF);
|
|
tpacpi_rfk_update_hwblock_state(hw_blocked);
|
|
|
|
return hw_blocked;
|
|
}
|
|
|
|
static int tpacpi_rfk_hook_set_block(void *data, bool blocked)
|
|
{
|
|
struct tpacpi_rfk *tp_rfk = data;
|
|
int res;
|
|
|
|
dbg_printk(TPACPI_DBG_RFKILL,
|
|
"request to change radio state to %s\n",
|
|
blocked ? "blocked" : "unblocked");
|
|
|
|
/* try to set radio state */
|
|
res = (tp_rfk->ops->set_status)(blocked ?
|
|
TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON);
|
|
|
|
/* and update the rfkill core with whatever the FW really did */
|
|
tpacpi_rfk_update_swstate(tp_rfk);
|
|
|
|
return (res < 0) ? res : 0;
|
|
}
|
|
|
|
static const struct rfkill_ops tpacpi_rfk_rfkill_ops = {
|
|
.set_block = tpacpi_rfk_hook_set_block,
|
|
};
|
|
|
|
static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id,
|
|
const struct tpacpi_rfk_ops *tp_rfkops,
|
|
const enum rfkill_type rfktype,
|
|
const char *name,
|
|
const bool set_default)
|
|
{
|
|
struct tpacpi_rfk *atp_rfk;
|
|
int res;
|
|
bool sw_state = false;
|
|
bool hw_state;
|
|
int sw_status;
|
|
|
|
BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]);
|
|
|
|
atp_rfk = kzalloc(sizeof(struct tpacpi_rfk), GFP_KERNEL);
|
|
if (atp_rfk)
|
|
atp_rfk->rfkill = rfkill_alloc(name,
|
|
&tpacpi_pdev->dev,
|
|
rfktype,
|
|
&tpacpi_rfk_rfkill_ops,
|
|
atp_rfk);
|
|
if (!atp_rfk || !atp_rfk->rfkill) {
|
|
pr_err("failed to allocate memory for rfkill class\n");
|
|
kfree(atp_rfk);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
atp_rfk->id = id;
|
|
atp_rfk->ops = tp_rfkops;
|
|
|
|
sw_status = (tp_rfkops->get_status)();
|
|
if (sw_status < 0) {
|
|
pr_err("failed to read initial state for %s, error %d\n",
|
|
name, sw_status);
|
|
} else {
|
|
sw_state = (sw_status == TPACPI_RFK_RADIO_OFF);
|
|
if (set_default) {
|
|
/* try to keep the initial state, since we ask the
|
|
* firmware to preserve it across S5 in NVRAM */
|
|
rfkill_init_sw_state(atp_rfk->rfkill, sw_state);
|
|
}
|
|
}
|
|
hw_state = tpacpi_rfk_check_hwblock_state();
|
|
rfkill_set_hw_state(atp_rfk->rfkill, hw_state);
|
|
|
|
res = rfkill_register(atp_rfk->rfkill);
|
|
if (res < 0) {
|
|
pr_err("failed to register %s rfkill switch: %d\n", name, res);
|
|
rfkill_destroy(atp_rfk->rfkill);
|
|
kfree(atp_rfk);
|
|
return res;
|
|
}
|
|
|
|
tpacpi_rfkill_switches[id] = atp_rfk;
|
|
|
|
pr_info("rfkill switch %s: radio is %sblocked\n",
|
|
name, (sw_state || hw_state) ? "" : "un");
|
|
return 0;
|
|
}
|
|
|
|
static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id)
|
|
{
|
|
struct tpacpi_rfk *tp_rfk;
|
|
|
|
BUG_ON(id >= TPACPI_RFK_SW_MAX);
|
|
|
|
tp_rfk = tpacpi_rfkill_switches[id];
|
|
if (tp_rfk) {
|
|
rfkill_unregister(tp_rfk->rfkill);
|
|
rfkill_destroy(tp_rfk->rfkill);
|
|
tpacpi_rfkill_switches[id] = NULL;
|
|
kfree(tp_rfk);
|
|
}
|
|
}
|
|
|
|
static void printk_deprecated_rfkill_attribute(const char * const what)
|
|
{
|
|
printk_deprecated_attribute(what,
|
|
"Please switch to generic rfkill before year 2010");
|
|
}
|
|
|
|
/* sysfs <radio> enable ------------------------------------------------ */
|
|
static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int status;
|
|
|
|
printk_deprecated_rfkill_attribute(attr->attr.name);
|
|
|
|
/* This is in the ABI... */
|
|
if (tpacpi_rfk_check_hwblock_state()) {
|
|
status = TPACPI_RFK_RADIO_OFF;
|
|
} else {
|
|
status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]);
|
|
if (status < 0)
|
|
return status;
|
|
}
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n",
|
|
(status == TPACPI_RFK_RADIO_ON) ? 1 : 0);
|
|
}
|
|
|
|
static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
int res;
|
|
|
|
printk_deprecated_rfkill_attribute(attr->attr.name);
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
return -EINVAL;
|
|
|
|
tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t);
|
|
|
|
/* This is in the ABI... */
|
|
if (tpacpi_rfk_check_hwblock_state() && !!t)
|
|
return -EPERM;
|
|
|
|
res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF);
|
|
tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]);
|
|
|
|
return (res < 0) ? res : count;
|
|
}
|
|
|
|
/* procfs -------------------------------------------------------------- */
|
|
static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m)
|
|
{
|
|
if (id >= TPACPI_RFK_SW_MAX)
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
else {
|
|
int status;
|
|
|
|
/* This is in the ABI... */
|
|
if (tpacpi_rfk_check_hwblock_state()) {
|
|
status = TPACPI_RFK_RADIO_OFF;
|
|
} else {
|
|
status = tpacpi_rfk_update_swstate(
|
|
tpacpi_rfkill_switches[id]);
|
|
if (status < 0)
|
|
return status;
|
|
}
|
|
|
|
seq_printf(m, "status:\t\t%s\n",
|
|
(status == TPACPI_RFK_RADIO_ON) ?
|
|
"enabled" : "disabled");
|
|
seq_printf(m, "commands:\tenable, disable\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf)
|
|
{
|
|
char *cmd;
|
|
int status = -1;
|
|
int res = 0;
|
|
|
|
if (id >= TPACPI_RFK_SW_MAX)
|
|
return -ENODEV;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (strlencmp(cmd, "enable") == 0)
|
|
status = TPACPI_RFK_RADIO_ON;
|
|
else if (strlencmp(cmd, "disable") == 0)
|
|
status = TPACPI_RFK_RADIO_OFF;
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (status != -1) {
|
|
tpacpi_disclose_usertask("procfs", "attempt to %s %s\n",
|
|
(status == TPACPI_RFK_RADIO_ON) ?
|
|
"enable" : "disable",
|
|
tpacpi_rfkill_names[id]);
|
|
res = (tpacpi_rfkill_switches[id]->ops->set_status)(status);
|
|
tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* thinkpad-acpi driver attributes
|
|
*/
|
|
|
|
/* interface_version --------------------------------------------------- */
|
|
static ssize_t interface_version_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", TPACPI_SYSFS_VERSION);
|
|
}
|
|
static DRIVER_ATTR_RO(interface_version);
|
|
|
|
/* debug_level --------------------------------------------------------- */
|
|
static ssize_t debug_level_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%04x\n", dbg_level);
|
|
}
|
|
|
|
static ssize_t debug_level_store(struct device_driver *drv, const char *buf,
|
|
size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 0xffff, &t))
|
|
return -EINVAL;
|
|
|
|
dbg_level = t;
|
|
|
|
return count;
|
|
}
|
|
static DRIVER_ATTR_RW(debug_level);
|
|
|
|
/* version ------------------------------------------------------------- */
|
|
static ssize_t version_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%s v%s\n",
|
|
TPACPI_DESC, TPACPI_VERSION);
|
|
}
|
|
static DRIVER_ATTR_RO(version);
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
|
|
/* wlsw_emulstate ------------------------------------------------------ */
|
|
static ssize_t wlsw_emulstate_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wlsw_emulstate);
|
|
}
|
|
|
|
static ssize_t wlsw_emulstate_store(struct device_driver *drv, const char *buf,
|
|
size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
return -EINVAL;
|
|
|
|
if (tpacpi_wlsw_emulstate != !!t) {
|
|
tpacpi_wlsw_emulstate = !!t;
|
|
tpacpi_rfk_update_hwblock_state(!t); /* negative logic */
|
|
}
|
|
|
|
return count;
|
|
}
|
|
static DRIVER_ATTR_RW(wlsw_emulstate);
|
|
|
|
/* bluetooth_emulstate ------------------------------------------------- */
|
|
static ssize_t bluetooth_emulstate_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_bluetooth_emulstate);
|
|
}
|
|
|
|
static ssize_t bluetooth_emulstate_store(struct device_driver *drv,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
return -EINVAL;
|
|
|
|
tpacpi_bluetooth_emulstate = !!t;
|
|
|
|
return count;
|
|
}
|
|
static DRIVER_ATTR_RW(bluetooth_emulstate);
|
|
|
|
/* wwan_emulstate ------------------------------------------------- */
|
|
static ssize_t wwan_emulstate_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_wwan_emulstate);
|
|
}
|
|
|
|
static ssize_t wwan_emulstate_store(struct device_driver *drv, const char *buf,
|
|
size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
return -EINVAL;
|
|
|
|
tpacpi_wwan_emulstate = !!t;
|
|
|
|
return count;
|
|
}
|
|
static DRIVER_ATTR_RW(wwan_emulstate);
|
|
|
|
/* uwb_emulstate ------------------------------------------------- */
|
|
static ssize_t uwb_emulstate_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!tpacpi_uwb_emulstate);
|
|
}
|
|
|
|
static ssize_t uwb_emulstate_store(struct device_driver *drv, const char *buf,
|
|
size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
return -EINVAL;
|
|
|
|
tpacpi_uwb_emulstate = !!t;
|
|
|
|
return count;
|
|
}
|
|
static DRIVER_ATTR_RW(uwb_emulstate);
|
|
#endif
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static struct driver_attribute *tpacpi_driver_attributes[] = {
|
|
&driver_attr_debug_level, &driver_attr_version,
|
|
&driver_attr_interface_version,
|
|
};
|
|
|
|
static int __init tpacpi_create_driver_attributes(struct device_driver *drv)
|
|
{
|
|
int i, res;
|
|
|
|
i = 0;
|
|
res = 0;
|
|
while (!res && i < ARRAY_SIZE(tpacpi_driver_attributes)) {
|
|
res = driver_create_file(drv, tpacpi_driver_attributes[i]);
|
|
i++;
|
|
}
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (!res && dbg_wlswemul)
|
|
res = driver_create_file(drv, &driver_attr_wlsw_emulstate);
|
|
if (!res && dbg_bluetoothemul)
|
|
res = driver_create_file(drv, &driver_attr_bluetooth_emulstate);
|
|
if (!res && dbg_wwanemul)
|
|
res = driver_create_file(drv, &driver_attr_wwan_emulstate);
|
|
if (!res && dbg_uwbemul)
|
|
res = driver_create_file(drv, &driver_attr_uwb_emulstate);
|
|
#endif
|
|
|
|
return res;
|
|
}
|
|
|
|
static void tpacpi_remove_driver_attributes(struct device_driver *drv)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(tpacpi_driver_attributes); i++)
|
|
driver_remove_file(drv, tpacpi_driver_attributes[i]);
|
|
|
|
#ifdef THINKPAD_ACPI_DEBUGFACILITIES
|
|
driver_remove_file(drv, &driver_attr_wlsw_emulstate);
|
|
driver_remove_file(drv, &driver_attr_bluetooth_emulstate);
|
|
driver_remove_file(drv, &driver_attr_wwan_emulstate);
|
|
driver_remove_file(drv, &driver_attr_uwb_emulstate);
|
|
#endif
|
|
}
|
|
|
|
/*************************************************************************
|
|
* Firmware Data
|
|
*/
|
|
|
|
/*
|
|
* Table of recommended minimum BIOS versions
|
|
*
|
|
* Reasons for listing:
|
|
* 1. Stable BIOS, listed because the unknown amount of
|
|
* bugs and bad ACPI behaviour on older versions
|
|
*
|
|
* 2. BIOS or EC fw with known bugs that trigger on Linux
|
|
*
|
|
* 3. BIOS with known reduced functionality in older versions
|
|
*
|
|
* We recommend the latest BIOS and EC version.
|
|
* We only support the latest BIOS and EC fw version as a rule.
|
|
*
|
|
* Sources: IBM ThinkPad Public Web Documents (update changelogs),
|
|
* Information from users in ThinkWiki
|
|
*
|
|
* WARNING: we use this table also to detect that the machine is
|
|
* a ThinkPad in some cases, so don't remove entries lightly.
|
|
*/
|
|
|
|
#define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \
|
|
{ .vendor = (__v), \
|
|
.bios = TPID(__id1, __id2), \
|
|
.ec = TPACPI_MATCH_ANY, \
|
|
.quirks = TPACPI_MATCH_ANY_VERSION << 16 \
|
|
| TPVER(__bv1, __bv2) }
|
|
|
|
#define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \
|
|
__eid, __ev1, __ev2) \
|
|
{ .vendor = (__v), \
|
|
.bios = TPID(__bid1, __bid2), \
|
|
.ec = __eid, \
|
|
.quirks = TPVER(__ev1, __ev2) << 16 \
|
|
| TPVER(__bv1, __bv2) }
|
|
|
|
#define TPV_QI0(__id1, __id2, __bv1, __bv2) \
|
|
TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2)
|
|
|
|
/* Outdated IBM BIOSes often lack the EC id string */
|
|
#define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \
|
|
TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \
|
|
__bv1, __bv2, TPID(__id1, __id2), \
|
|
__ev1, __ev2), \
|
|
TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \
|
|
__bv1, __bv2, TPACPI_MATCH_UNKNOWN, \
|
|
__ev1, __ev2)
|
|
|
|
/* Outdated IBM BIOSes often lack the EC id string */
|
|
#define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \
|
|
__eid1, __eid2, __ev1, __ev2) \
|
|
TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \
|
|
__bv1, __bv2, TPID(__eid1, __eid2), \
|
|
__ev1, __ev2), \
|
|
TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \
|
|
__bv1, __bv2, TPACPI_MATCH_UNKNOWN, \
|
|
__ev1, __ev2)
|
|
|
|
#define TPV_QL0(__id1, __id2, __bv1, __bv2) \
|
|
TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2)
|
|
|
|
#define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \
|
|
TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \
|
|
__bv1, __bv2, TPID(__id1, __id2), \
|
|
__ev1, __ev2)
|
|
|
|
#define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \
|
|
__eid1, __eid2, __ev1, __ev2) \
|
|
TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \
|
|
__bv1, __bv2, TPID(__eid1, __eid2), \
|
|
__ev1, __ev2)
|
|
|
|
static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = {
|
|
/* Numeric models ------------------ */
|
|
/* FW MODEL BIOS VERS */
|
|
TPV_QI0('I', 'M', '6', '5'), /* 570 */
|
|
TPV_QI0('I', 'U', '2', '6'), /* 570E */
|
|
TPV_QI0('I', 'B', '5', '4'), /* 600 */
|
|
TPV_QI0('I', 'H', '4', '7'), /* 600E */
|
|
TPV_QI0('I', 'N', '3', '6'), /* 600E */
|
|
TPV_QI0('I', 'T', '5', '5'), /* 600X */
|
|
TPV_QI0('I', 'D', '4', '8'), /* 770, 770E, 770ED */
|
|
TPV_QI0('I', 'I', '4', '2'), /* 770X */
|
|
TPV_QI0('I', 'O', '2', '3'), /* 770Z */
|
|
|
|
/* A-series ------------------------- */
|
|
/* FW MODEL BIOS VERS EC VERS */
|
|
TPV_QI0('I', 'W', '5', '9'), /* A20m */
|
|
TPV_QI0('I', 'V', '6', '9'), /* A20p */
|
|
TPV_QI0('1', '0', '2', '6'), /* A21e, A22e */
|
|
TPV_QI0('K', 'U', '3', '6'), /* A21e */
|
|
TPV_QI0('K', 'X', '3', '6'), /* A21m, A22m */
|
|
TPV_QI0('K', 'Y', '3', '8'), /* A21p, A22p */
|
|
TPV_QI0('1', 'B', '1', '7'), /* A22e */
|
|
TPV_QI0('1', '3', '2', '0'), /* A22m */
|
|
TPV_QI0('1', 'E', '7', '3'), /* A30/p (0) */
|
|
TPV_QI1('1', 'G', '4', '1', '1', '7'), /* A31/p (0) */
|
|
TPV_QI1('1', 'N', '1', '6', '0', '7'), /* A31/p (0) */
|
|
|
|
/* G-series ------------------------- */
|
|
/* FW MODEL BIOS VERS */
|
|
TPV_QI0('1', 'T', 'A', '6'), /* G40 */
|
|
TPV_QI0('1', 'X', '5', '7'), /* G41 */
|
|
|
|
/* R-series, T-series --------------- */
|
|
/* FW MODEL BIOS VERS EC VERS */
|
|
TPV_QI0('1', 'C', 'F', '0'), /* R30 */
|
|
TPV_QI0('1', 'F', 'F', '1'), /* R31 */
|
|
TPV_QI0('1', 'M', '9', '7'), /* R32 */
|
|
TPV_QI0('1', 'O', '6', '1'), /* R40 */
|
|
TPV_QI0('1', 'P', '6', '5'), /* R40 */
|
|
TPV_QI0('1', 'S', '7', '0'), /* R40e */
|
|
TPV_QI1('1', 'R', 'D', 'R', '7', '1'), /* R50/p, R51,
|
|
T40/p, T41/p, T42/p (1) */
|
|
TPV_QI1('1', 'V', '7', '1', '2', '8'), /* R50e, R51 (1) */
|
|
TPV_QI1('7', '8', '7', '1', '0', '6'), /* R51e (1) */
|
|
TPV_QI1('7', '6', '6', '9', '1', '6'), /* R52 (1) */
|
|
TPV_QI1('7', '0', '6', '9', '2', '8'), /* R52, T43 (1) */
|
|
|
|
TPV_QI0('I', 'Y', '6', '1'), /* T20 */
|
|
TPV_QI0('K', 'Z', '3', '4'), /* T21 */
|
|
TPV_QI0('1', '6', '3', '2'), /* T22 */
|
|
TPV_QI1('1', 'A', '6', '4', '2', '3'), /* T23 (0) */
|
|
TPV_QI1('1', 'I', '7', '1', '2', '0'), /* T30 (0) */
|
|
TPV_QI1('1', 'Y', '6', '5', '2', '9'), /* T43/p (1) */
|
|
|
|
TPV_QL1('7', '9', 'E', '3', '5', '0'), /* T60/p */
|
|
TPV_QL1('7', 'C', 'D', '2', '2', '2'), /* R60, R60i */
|
|
TPV_QL1('7', 'E', 'D', '0', '1', '5'), /* R60e, R60i */
|
|
|
|
/* BIOS FW BIOS VERS EC FW EC VERS */
|
|
TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'), /* R50e (1) */
|
|
TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'), /* T60/p wide */
|
|
|
|
/* X-series ------------------------- */
|
|
/* FW MODEL BIOS VERS EC VERS */
|
|
TPV_QI0('I', 'Z', '9', 'D'), /* X20, X21 */
|
|
TPV_QI0('1', 'D', '7', '0'), /* X22, X23, X24 */
|
|
TPV_QI1('1', 'K', '4', '8', '1', '8'), /* X30 (0) */
|
|
TPV_QI1('1', 'Q', '9', '7', '2', '3'), /* X31, X32 (0) */
|
|
TPV_QI1('1', 'U', 'D', '3', 'B', '2'), /* X40 (0) */
|
|
TPV_QI1('7', '4', '6', '4', '2', '7'), /* X41 (0) */
|
|
TPV_QI1('7', '5', '6', '0', '2', '0'), /* X41t (0) */
|
|
|
|
TPV_QL1('7', 'B', 'D', '7', '4', '0'), /* X60/s */
|
|
TPV_QL1('7', 'J', '3', '0', '1', '3'), /* X60t */
|
|
|
|
/* (0) - older versions lack DMI EC fw string and functionality */
|
|
/* (1) - older versions known to lack functionality */
|
|
};
|
|
|
|
#undef TPV_QL1
|
|
#undef TPV_QL0
|
|
#undef TPV_QI2
|
|
#undef TPV_QI1
|
|
#undef TPV_QI0
|
|
#undef TPV_Q_X
|
|
#undef TPV_Q
|
|
|
|
static void __init tpacpi_check_outdated_fw(void)
|
|
{
|
|
unsigned long fwvers;
|
|
u16 ec_version, bios_version;
|
|
|
|
fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable,
|
|
ARRAY_SIZE(tpacpi_bios_version_qtable));
|
|
|
|
if (!fwvers)
|
|
return;
|
|
|
|
bios_version = fwvers & 0xffffU;
|
|
ec_version = (fwvers >> 16) & 0xffffU;
|
|
|
|
/* note that unknown versions are set to 0x0000 and we use that */
|
|
if ((bios_version > thinkpad_id.bios_release) ||
|
|
(ec_version > thinkpad_id.ec_release &&
|
|
ec_version != TPACPI_MATCH_ANY_VERSION)) {
|
|
/*
|
|
* The changelogs would let us track down the exact
|
|
* reason, but it is just too much of a pain to track
|
|
* it. We only list BIOSes that are either really
|
|
* broken, or really stable to begin with, so it is
|
|
* best if the user upgrades the firmware anyway.
|
|
*/
|
|
pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n");
|
|
pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n");
|
|
}
|
|
}
|
|
|
|
static bool __init tpacpi_is_fw_known(void)
|
|
{
|
|
return tpacpi_check_quirks(tpacpi_bios_version_qtable,
|
|
ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0;
|
|
}
|
|
|
|
/****************************************************************************
|
|
****************************************************************************
|
|
*
|
|
* Subdrivers
|
|
*
|
|
****************************************************************************
|
|
****************************************************************************/
|
|
|
|
/*************************************************************************
|
|
* thinkpad-acpi metadata subdriver
|
|
*/
|
|
|
|
static int thinkpad_acpi_driver_read(struct seq_file *m)
|
|
{
|
|
seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC);
|
|
seq_printf(m, "version:\t%s\n", TPACPI_VERSION);
|
|
return 0;
|
|
}
|
|
|
|
static struct ibm_struct thinkpad_acpi_driver_data = {
|
|
.name = "driver",
|
|
.read = thinkpad_acpi_driver_read,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Hotkey subdriver
|
|
*/
|
|
|
|
/*
|
|
* ThinkPad firmware event model
|
|
*
|
|
* The ThinkPad firmware has two main event interfaces: normal ACPI
|
|
* notifications (which follow the ACPI standard), and a private event
|
|
* interface.
|
|
*
|
|
* The private event interface also issues events for the hotkeys. As
|
|
* the driver gained features, the event handling code ended up being
|
|
* built around the hotkey subdriver. This will need to be refactored
|
|
* to a more formal event API eventually.
|
|
*
|
|
* Some "hotkeys" are actually supposed to be used as event reports,
|
|
* such as "brightness has changed", "volume has changed", depending on
|
|
* the ThinkPad model and how the firmware is operating.
|
|
*
|
|
* Unlike other classes, hotkey-class events have mask/unmask control on
|
|
* non-ancient firmware. However, how it behaves changes a lot with the
|
|
* firmware model and version.
|
|
*/
|
|
|
|
enum { /* hot key scan codes (derived from ACPI DSDT) */
|
|
TP_ACPI_HOTKEYSCAN_FNF1 = 0,
|
|
TP_ACPI_HOTKEYSCAN_FNF2,
|
|
TP_ACPI_HOTKEYSCAN_FNF3,
|
|
TP_ACPI_HOTKEYSCAN_FNF4,
|
|
TP_ACPI_HOTKEYSCAN_FNF5,
|
|
TP_ACPI_HOTKEYSCAN_FNF6,
|
|
TP_ACPI_HOTKEYSCAN_FNF7,
|
|
TP_ACPI_HOTKEYSCAN_FNF8,
|
|
TP_ACPI_HOTKEYSCAN_FNF9,
|
|
TP_ACPI_HOTKEYSCAN_FNF10,
|
|
TP_ACPI_HOTKEYSCAN_FNF11,
|
|
TP_ACPI_HOTKEYSCAN_FNF12,
|
|
TP_ACPI_HOTKEYSCAN_FNBACKSPACE,
|
|
TP_ACPI_HOTKEYSCAN_FNINSERT,
|
|
TP_ACPI_HOTKEYSCAN_FNDELETE,
|
|
TP_ACPI_HOTKEYSCAN_FNHOME,
|
|
TP_ACPI_HOTKEYSCAN_FNEND,
|
|
TP_ACPI_HOTKEYSCAN_FNPAGEUP,
|
|
TP_ACPI_HOTKEYSCAN_FNPAGEDOWN,
|
|
TP_ACPI_HOTKEYSCAN_FNSPACE,
|
|
TP_ACPI_HOTKEYSCAN_VOLUMEUP,
|
|
TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
|
|
TP_ACPI_HOTKEYSCAN_MUTE,
|
|
TP_ACPI_HOTKEYSCAN_THINKPAD,
|
|
TP_ACPI_HOTKEYSCAN_UNK1,
|
|
TP_ACPI_HOTKEYSCAN_UNK2,
|
|
TP_ACPI_HOTKEYSCAN_UNK3,
|
|
TP_ACPI_HOTKEYSCAN_UNK4,
|
|
TP_ACPI_HOTKEYSCAN_UNK5,
|
|
TP_ACPI_HOTKEYSCAN_UNK6,
|
|
TP_ACPI_HOTKEYSCAN_UNK7,
|
|
TP_ACPI_HOTKEYSCAN_UNK8,
|
|
|
|
/* Adaptive keyboard keycodes */
|
|
TP_ACPI_HOTKEYSCAN_ADAPTIVE_START,
|
|
TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START,
|
|
TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO,
|
|
TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL,
|
|
TP_ACPI_HOTKEYSCAN_CLOUD,
|
|
TP_ACPI_HOTKEYSCAN_UNK9,
|
|
TP_ACPI_HOTKEYSCAN_VOICE,
|
|
TP_ACPI_HOTKEYSCAN_UNK10,
|
|
TP_ACPI_HOTKEYSCAN_GESTURES,
|
|
TP_ACPI_HOTKEYSCAN_UNK11,
|
|
TP_ACPI_HOTKEYSCAN_UNK12,
|
|
TP_ACPI_HOTKEYSCAN_UNK13,
|
|
TP_ACPI_HOTKEYSCAN_CONFIG,
|
|
TP_ACPI_HOTKEYSCAN_NEW_TAB,
|
|
TP_ACPI_HOTKEYSCAN_RELOAD,
|
|
TP_ACPI_HOTKEYSCAN_BACK,
|
|
TP_ACPI_HOTKEYSCAN_MIC_DOWN,
|
|
TP_ACPI_HOTKEYSCAN_MIC_UP,
|
|
TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION,
|
|
TP_ACPI_HOTKEYSCAN_CAMERA_MODE,
|
|
TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY,
|
|
|
|
/* Lenovo extended keymap, starting at 0x1300 */
|
|
TP_ACPI_HOTKEYSCAN_EXTENDED_START,
|
|
/* first new observed key (star, favorites) is 0x1311 */
|
|
TP_ACPI_HOTKEYSCAN_STAR = 69,
|
|
TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2,
|
|
TP_ACPI_HOTKEYSCAN_CALCULATOR,
|
|
TP_ACPI_HOTKEYSCAN_BLUETOOTH,
|
|
TP_ACPI_HOTKEYSCAN_KEYBOARD,
|
|
|
|
/* Hotkey keymap size */
|
|
TPACPI_HOTKEY_MAP_LEN
|
|
};
|
|
|
|
enum { /* Keys/events available through NVRAM polling */
|
|
TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U,
|
|
TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U,
|
|
};
|
|
|
|
enum { /* Positions of some of the keys in hotkey masks */
|
|
TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7,
|
|
TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8,
|
|
TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12,
|
|
TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME,
|
|
TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND,
|
|
TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP,
|
|
TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE,
|
|
TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP,
|
|
TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
|
|
TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE,
|
|
TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD,
|
|
};
|
|
|
|
enum { /* NVRAM to ACPI HKEY group map */
|
|
TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK |
|
|
TP_ACPI_HKEY_ZOOM_MASK |
|
|
TP_ACPI_HKEY_DISPSWTCH_MASK |
|
|
TP_ACPI_HKEY_HIBERNATE_MASK,
|
|
TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK |
|
|
TP_ACPI_HKEY_BRGHTDWN_MASK,
|
|
TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK |
|
|
TP_ACPI_HKEY_VOLDWN_MASK |
|
|
TP_ACPI_HKEY_MUTE_MASK,
|
|
};
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
struct tp_nvram_state {
|
|
u16 thinkpad_toggle:1;
|
|
u16 zoom_toggle:1;
|
|
u16 display_toggle:1;
|
|
u16 thinklight_toggle:1;
|
|
u16 hibernate_toggle:1;
|
|
u16 displayexp_toggle:1;
|
|
u16 display_state:1;
|
|
u16 brightness_toggle:1;
|
|
u16 volume_toggle:1;
|
|
u16 mute:1;
|
|
|
|
u8 brightness_level;
|
|
u8 volume_level;
|
|
};
|
|
|
|
/* kthread for the hotkey poller */
|
|
static struct task_struct *tpacpi_hotkey_task;
|
|
|
|
/*
|
|
* Acquire mutex to write poller control variables as an
|
|
* atomic block.
|
|
*
|
|
* Increment hotkey_config_change when changing them if you
|
|
* want the kthread to forget old state.
|
|
*
|
|
* See HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END
|
|
*/
|
|
static struct mutex hotkey_thread_data_mutex;
|
|
static unsigned int hotkey_config_change;
|
|
|
|
/*
|
|
* hotkey poller control variables
|
|
*
|
|
* Must be atomic or readers will also need to acquire mutex
|
|
*
|
|
* HOTKEY_CONFIG_CRITICAL_START/HOTKEY_CONFIG_CRITICAL_END
|
|
* should be used only when the changes need to be taken as
|
|
* a block, OR when one needs to force the kthread to forget
|
|
* old state.
|
|
*/
|
|
static u32 hotkey_source_mask; /* bit mask 0=ACPI,1=NVRAM */
|
|
static unsigned int hotkey_poll_freq = 10; /* Hz */
|
|
|
|
#define HOTKEY_CONFIG_CRITICAL_START \
|
|
do { \
|
|
mutex_lock(&hotkey_thread_data_mutex); \
|
|
hotkey_config_change++; \
|
|
} while (0);
|
|
#define HOTKEY_CONFIG_CRITICAL_END \
|
|
mutex_unlock(&hotkey_thread_data_mutex);
|
|
|
|
#else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
#define hotkey_source_mask 0U
|
|
#define HOTKEY_CONFIG_CRITICAL_START
|
|
#define HOTKEY_CONFIG_CRITICAL_END
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
static struct mutex hotkey_mutex;
|
|
|
|
static enum { /* Reasons for waking up */
|
|
TP_ACPI_WAKEUP_NONE = 0, /* None or unknown */
|
|
TP_ACPI_WAKEUP_BAYEJ, /* Bay ejection request */
|
|
TP_ACPI_WAKEUP_UNDOCK, /* Undock request */
|
|
} hotkey_wakeup_reason;
|
|
|
|
static int hotkey_autosleep_ack;
|
|
|
|
static u32 hotkey_orig_mask; /* events the BIOS had enabled */
|
|
static u32 hotkey_all_mask; /* all events supported in fw */
|
|
static u32 hotkey_adaptive_all_mask; /* all adaptive events supported in fw */
|
|
static u32 hotkey_reserved_mask; /* events better left disabled */
|
|
static u32 hotkey_driver_mask; /* events needed by the driver */
|
|
static u32 hotkey_user_mask; /* events visible to userspace */
|
|
static u32 hotkey_acpi_mask; /* events enabled in firmware */
|
|
|
|
static u16 *hotkey_keycode_map;
|
|
|
|
static struct attribute_set *hotkey_dev_attributes;
|
|
|
|
static void tpacpi_driver_event(const unsigned int hkey_event);
|
|
static void hotkey_driver_event(const unsigned int scancode);
|
|
static void hotkey_poll_setup(const bool may_warn);
|
|
|
|
/* HKEY.MHKG() return bits */
|
|
#define TP_HOTKEY_TABLET_MASK (1 << 3)
|
|
enum {
|
|
TP_ACPI_MULTI_MODE_INVALID = 0,
|
|
TP_ACPI_MULTI_MODE_UNKNOWN = 1 << 0,
|
|
TP_ACPI_MULTI_MODE_LAPTOP = 1 << 1,
|
|
TP_ACPI_MULTI_MODE_TABLET = 1 << 2,
|
|
TP_ACPI_MULTI_MODE_FLAT = 1 << 3,
|
|
TP_ACPI_MULTI_MODE_STAND = 1 << 4,
|
|
TP_ACPI_MULTI_MODE_TENT = 1 << 5,
|
|
TP_ACPI_MULTI_MODE_STAND_TENT = 1 << 6,
|
|
};
|
|
|
|
enum {
|
|
/* The following modes are considered tablet mode for the purpose of
|
|
* reporting the status to userspace. i.e. in all these modes it makes
|
|
* sense to disable the laptop input devices such as touchpad and
|
|
* keyboard.
|
|
*/
|
|
TP_ACPI_MULTI_MODE_TABLET_LIKE = TP_ACPI_MULTI_MODE_TABLET |
|
|
TP_ACPI_MULTI_MODE_STAND |
|
|
TP_ACPI_MULTI_MODE_TENT |
|
|
TP_ACPI_MULTI_MODE_STAND_TENT,
|
|
};
|
|
|
|
static int hotkey_get_wlsw(void)
|
|
{
|
|
int status;
|
|
|
|
if (!tp_features.hotkey_wlsw)
|
|
return -ENODEV;
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_wlswemul)
|
|
return (tpacpi_wlsw_emulstate) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
#endif
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "WLSW", "d"))
|
|
return -EIO;
|
|
|
|
return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
}
|
|
|
|
static int hotkey_gmms_get_tablet_mode(int s, int *has_tablet_mode)
|
|
{
|
|
int type = (s >> 16) & 0xffff;
|
|
int value = s & 0xffff;
|
|
int mode = TP_ACPI_MULTI_MODE_INVALID;
|
|
int valid_modes = 0;
|
|
|
|
if (has_tablet_mode)
|
|
*has_tablet_mode = 0;
|
|
|
|
switch (type) {
|
|
case 1:
|
|
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
|
|
TP_ACPI_MULTI_MODE_TABLET |
|
|
TP_ACPI_MULTI_MODE_STAND_TENT;
|
|
break;
|
|
case 2:
|
|
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
|
|
TP_ACPI_MULTI_MODE_FLAT |
|
|
TP_ACPI_MULTI_MODE_TABLET |
|
|
TP_ACPI_MULTI_MODE_STAND |
|
|
TP_ACPI_MULTI_MODE_TENT;
|
|
break;
|
|
case 3:
|
|
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
|
|
TP_ACPI_MULTI_MODE_FLAT;
|
|
break;
|
|
case 4:
|
|
case 5:
|
|
/* In mode 4, FLAT is not specified as a valid mode. However,
|
|
* it can be seen at least on the X1 Yoga 2nd Generation.
|
|
*/
|
|
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
|
|
TP_ACPI_MULTI_MODE_FLAT |
|
|
TP_ACPI_MULTI_MODE_TABLET |
|
|
TP_ACPI_MULTI_MODE_STAND |
|
|
TP_ACPI_MULTI_MODE_TENT;
|
|
break;
|
|
default:
|
|
pr_err("Unknown multi mode status type %d with value 0x%04X, please report this to %s\n",
|
|
type, value, TPACPI_MAIL);
|
|
return 0;
|
|
}
|
|
|
|
if (has_tablet_mode && (valid_modes & TP_ACPI_MULTI_MODE_TABLET_LIKE))
|
|
*has_tablet_mode = 1;
|
|
|
|
switch (value) {
|
|
case 1:
|
|
mode = TP_ACPI_MULTI_MODE_LAPTOP;
|
|
break;
|
|
case 2:
|
|
mode = TP_ACPI_MULTI_MODE_FLAT;
|
|
break;
|
|
case 3:
|
|
mode = TP_ACPI_MULTI_MODE_TABLET;
|
|
break;
|
|
case 4:
|
|
if (type == 1)
|
|
mode = TP_ACPI_MULTI_MODE_STAND_TENT;
|
|
else
|
|
mode = TP_ACPI_MULTI_MODE_STAND;
|
|
break;
|
|
case 5:
|
|
mode = TP_ACPI_MULTI_MODE_TENT;
|
|
break;
|
|
default:
|
|
if (type == 5 && value == 0xffff) {
|
|
pr_warn("Multi mode status is undetected, assuming laptop\n");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!(mode & valid_modes)) {
|
|
pr_err("Unknown/reserved multi mode value 0x%04X for type %d, please report this to %s\n",
|
|
value, type, TPACPI_MAIL);
|
|
return 0;
|
|
}
|
|
|
|
return !!(mode & TP_ACPI_MULTI_MODE_TABLET_LIKE);
|
|
}
|
|
|
|
static int hotkey_get_tablet_mode(int *status)
|
|
{
|
|
int s;
|
|
|
|
switch (tp_features.hotkey_tablet) {
|
|
case TP_HOTKEY_TABLET_USES_MHKG:
|
|
if (!acpi_evalf(hkey_handle, &s, "MHKG", "d"))
|
|
return -EIO;
|
|
|
|
*status = ((s & TP_HOTKEY_TABLET_MASK) != 0);
|
|
break;
|
|
case TP_HOTKEY_TABLET_USES_GMMS:
|
|
if (!acpi_evalf(hkey_handle, &s, "GMMS", "dd", 0))
|
|
return -EIO;
|
|
|
|
*status = hotkey_gmms_get_tablet_mode(s, NULL);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Reads current event mask from firmware, and updates
|
|
* hotkey_acpi_mask accordingly. Also resets any bits
|
|
* from hotkey_user_mask that are unavailable to be
|
|
* delivered (shadow requirement of the userspace ABI).
|
|
*
|
|
* Call with hotkey_mutex held
|
|
*/
|
|
static int hotkey_mask_get(void)
|
|
{
|
|
if (tp_features.hotkey_mask) {
|
|
u32 m = 0;
|
|
|
|
if (!acpi_evalf(hkey_handle, &m, "DHKN", "d"))
|
|
return -EIO;
|
|
|
|
hotkey_acpi_mask = m;
|
|
} else {
|
|
/* no mask support doesn't mean no event support... */
|
|
hotkey_acpi_mask = hotkey_all_mask;
|
|
}
|
|
|
|
/* sync userspace-visible mask */
|
|
hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hotkey_mask_warn_incomplete_mask(void)
|
|
{
|
|
/* log only what the user can fix... */
|
|
const u32 wantedmask = hotkey_driver_mask &
|
|
~(hotkey_acpi_mask | hotkey_source_mask) &
|
|
(hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK);
|
|
|
|
if (wantedmask)
|
|
pr_notice("required events 0x%08x not enabled!\n", wantedmask);
|
|
}
|
|
|
|
/*
|
|
* Set the firmware mask when supported
|
|
*
|
|
* Also calls hotkey_mask_get to update hotkey_acpi_mask.
|
|
*
|
|
* NOTE: does not set bits in hotkey_user_mask, but may reset them.
|
|
*
|
|
* Call with hotkey_mutex held
|
|
*/
|
|
static int hotkey_mask_set(u32 mask)
|
|
{
|
|
int i;
|
|
int rc = 0;
|
|
|
|
const u32 fwmask = mask & ~hotkey_source_mask;
|
|
|
|
if (tp_features.hotkey_mask) {
|
|
for (i = 0; i < 32; i++) {
|
|
if (!acpi_evalf(hkey_handle,
|
|
NULL, "MHKM", "vdd", i + 1,
|
|
!!(mask & (1 << i)))) {
|
|
rc = -EIO;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We *must* make an inconditional call to hotkey_mask_get to
|
|
* refresh hotkey_acpi_mask and update hotkey_user_mask
|
|
*
|
|
* Take the opportunity to also log when we cannot _enable_
|
|
* a given event.
|
|
*/
|
|
if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) {
|
|
pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n",
|
|
fwmask, hotkey_acpi_mask);
|
|
}
|
|
|
|
if (tpacpi_lifecycle != TPACPI_LIFE_EXITING)
|
|
hotkey_mask_warn_incomplete_mask();
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* Sets hotkey_user_mask and tries to set the firmware mask
|
|
*
|
|
* Call with hotkey_mutex held
|
|
*/
|
|
static int hotkey_user_mask_set(const u32 mask)
|
|
{
|
|
int rc;
|
|
|
|
/* Give people a chance to notice they are doing something that
|
|
* is bound to go boom on their users sooner or later */
|
|
if (!tp_warned.hotkey_mask_ff &&
|
|
(mask == 0xffff || mask == 0xffffff ||
|
|
mask == 0xffffffff)) {
|
|
tp_warned.hotkey_mask_ff = 1;
|
|
pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n",
|
|
mask);
|
|
pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n");
|
|
}
|
|
|
|
/* Try to enable what the user asked for, plus whatever we need.
|
|
* this syncs everything but won't enable bits in hotkey_user_mask */
|
|
rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask);
|
|
|
|
/* Enable the available bits in hotkey_user_mask */
|
|
hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* Sets the driver hotkey mask.
|
|
*
|
|
* Can be called even if the hotkey subdriver is inactive
|
|
*/
|
|
static int tpacpi_hotkey_driver_mask_set(const u32 mask)
|
|
{
|
|
int rc;
|
|
|
|
/* Do the right thing if hotkey_init has not been called yet */
|
|
if (!tp_features.hotkey) {
|
|
hotkey_driver_mask = mask;
|
|
return 0;
|
|
}
|
|
|
|
mutex_lock(&hotkey_mutex);
|
|
|
|
HOTKEY_CONFIG_CRITICAL_START
|
|
hotkey_driver_mask = mask;
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
hotkey_source_mask |= (mask & ~hotkey_all_mask);
|
|
#endif
|
|
HOTKEY_CONFIG_CRITICAL_END
|
|
|
|
rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) &
|
|
~hotkey_source_mask);
|
|
hotkey_poll_setup(true);
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int hotkey_status_get(int *status)
|
|
{
|
|
if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int hotkey_status_set(bool enable)
|
|
{
|
|
if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tpacpi_input_send_tabletsw(void)
|
|
{
|
|
int state;
|
|
|
|
if (tp_features.hotkey_tablet &&
|
|
!hotkey_get_tablet_mode(&state)) {
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
|
|
|
input_report_switch(tpacpi_inputdev,
|
|
SW_TABLET_MODE, !!state);
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
}
|
|
}
|
|
|
|
/* Do NOT call without validating scancode first */
|
|
static void tpacpi_input_send_key(const unsigned int scancode)
|
|
{
|
|
const unsigned int keycode = hotkey_keycode_map[scancode];
|
|
|
|
if (keycode != KEY_RESERVED) {
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
|
|
|
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode);
|
|
input_report_key(tpacpi_inputdev, keycode, 1);
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode);
|
|
input_report_key(tpacpi_inputdev, keycode, 0);
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
}
|
|
}
|
|
|
|
/* Do NOT call without validating scancode first */
|
|
static void tpacpi_input_send_key_masked(const unsigned int scancode)
|
|
{
|
|
hotkey_driver_event(scancode);
|
|
if (hotkey_user_mask & (1 << scancode))
|
|
tpacpi_input_send_key(scancode);
|
|
}
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
static struct tp_acpi_drv_struct ibm_hotkey_acpidriver;
|
|
|
|
/* Do NOT call without validating scancode first */
|
|
static void tpacpi_hotkey_send_key(unsigned int scancode)
|
|
{
|
|
tpacpi_input_send_key_masked(scancode);
|
|
}
|
|
|
|
static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
|
|
{
|
|
u8 d;
|
|
|
|
if (m & TP_NVRAM_HKEY_GROUP_HK2) {
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_HK2);
|
|
n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD);
|
|
n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM);
|
|
n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY);
|
|
n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE);
|
|
}
|
|
if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) {
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT);
|
|
n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT);
|
|
}
|
|
if (m & TP_ACPI_HKEY_DISPXPAND_MASK) {
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO);
|
|
n->displayexp_toggle =
|
|
!!(d & TP_NVRAM_MASK_HKT_DISPEXPND);
|
|
}
|
|
if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) {
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
|
|
n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
|
|
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
|
|
n->brightness_toggle =
|
|
!!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS);
|
|
}
|
|
if (m & TP_NVRAM_HKEY_GROUP_VOLUME) {
|
|
d = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
|
|
n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME)
|
|
>> TP_NVRAM_POS_LEVEL_VOLUME;
|
|
n->mute = !!(d & TP_NVRAM_MASK_MUTE);
|
|
n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME);
|
|
}
|
|
}
|
|
|
|
#define TPACPI_COMPARE_KEY(__scancode, __member) \
|
|
do { \
|
|
if ((event_mask & (1 << __scancode)) && \
|
|
oldn->__member != newn->__member) \
|
|
tpacpi_hotkey_send_key(__scancode); \
|
|
} while (0)
|
|
|
|
#define TPACPI_MAY_SEND_KEY(__scancode) \
|
|
do { \
|
|
if (event_mask & (1 << __scancode)) \
|
|
tpacpi_hotkey_send_key(__scancode); \
|
|
} while (0)
|
|
|
|
static void issue_volchange(const unsigned int oldvol,
|
|
const unsigned int newvol,
|
|
const u32 event_mask)
|
|
{
|
|
unsigned int i = oldvol;
|
|
|
|
while (i > newvol) {
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
|
|
i--;
|
|
}
|
|
while (i < newvol) {
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
static void issue_brightnesschange(const unsigned int oldbrt,
|
|
const unsigned int newbrt,
|
|
const u32 event_mask)
|
|
{
|
|
unsigned int i = oldbrt;
|
|
|
|
while (i > newbrt) {
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
|
|
i--;
|
|
}
|
|
while (i < newbrt) {
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
|
|
struct tp_nvram_state *newn,
|
|
const u32 event_mask)
|
|
{
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle);
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle);
|
|
|
|
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle);
|
|
|
|
/*
|
|
* Handle volume
|
|
*
|
|
* This code is supposed to duplicate the IBM firmware behaviour:
|
|
* - Pressing MUTE issues mute hotkey message, even when already mute
|
|
* - Pressing Volume up/down issues volume up/down hotkey messages,
|
|
* even when already at maximum or minimum volume
|
|
* - The act of unmuting issues volume up/down notification,
|
|
* depending which key was used to unmute
|
|
*
|
|
* We are constrained to what the NVRAM can tell us, which is not much
|
|
* and certainly not enough if more than one volume hotkey was pressed
|
|
* since the last poll cycle.
|
|
*
|
|
* Just to make our life interesting, some newer Lenovo ThinkPads have
|
|
* bugs in the BIOS and may fail to update volume_toggle properly.
|
|
*/
|
|
if (newn->mute) {
|
|
/* muted */
|
|
if (!oldn->mute ||
|
|
oldn->volume_toggle != newn->volume_toggle ||
|
|
oldn->volume_level != newn->volume_level) {
|
|
/* recently muted, or repeated mute keypress, or
|
|
* multiple presses ending in mute */
|
|
issue_volchange(oldn->volume_level, newn->volume_level,
|
|
event_mask);
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
|
|
}
|
|
} else {
|
|
/* unmute */
|
|
if (oldn->mute) {
|
|
/* recently unmuted, issue 'unmute' keypress */
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
|
|
}
|
|
if (oldn->volume_level != newn->volume_level) {
|
|
issue_volchange(oldn->volume_level, newn->volume_level,
|
|
event_mask);
|
|
} else if (oldn->volume_toggle != newn->volume_toggle) {
|
|
/* repeated vol up/down keypress at end of scale ? */
|
|
if (newn->volume_level == 0)
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
|
|
else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX)
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
|
|
}
|
|
}
|
|
|
|
/* handle brightness */
|
|
if (oldn->brightness_level != newn->brightness_level) {
|
|
issue_brightnesschange(oldn->brightness_level,
|
|
newn->brightness_level, event_mask);
|
|
} else if (oldn->brightness_toggle != newn->brightness_toggle) {
|
|
/* repeated key presses that didn't change state */
|
|
if (newn->brightness_level == 0)
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
|
|
else if (newn->brightness_level >= bright_maxlvl
|
|
&& !tp_features.bright_unkfw)
|
|
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
|
|
}
|
|
|
|
#undef TPACPI_COMPARE_KEY
|
|
#undef TPACPI_MAY_SEND_KEY
|
|
}
|
|
|
|
/*
|
|
* Polling driver
|
|
*
|
|
* We track all events in hotkey_source_mask all the time, since
|
|
* most of them are edge-based. We only issue those requested by
|
|
* hotkey_user_mask or hotkey_driver_mask, though.
|
|
*/
|
|
static int hotkey_kthread(void *data)
|
|
{
|
|
struct tp_nvram_state s[2];
|
|
u32 poll_mask, event_mask;
|
|
unsigned int si, so;
|
|
unsigned long t;
|
|
unsigned int change_detector;
|
|
unsigned int poll_freq;
|
|
bool was_frozen;
|
|
|
|
if (tpacpi_lifecycle == TPACPI_LIFE_EXITING)
|
|
goto exit;
|
|
|
|
set_freezable();
|
|
|
|
so = 0;
|
|
si = 1;
|
|
t = 0;
|
|
|
|
/* Initial state for compares */
|
|
mutex_lock(&hotkey_thread_data_mutex);
|
|
change_detector = hotkey_config_change;
|
|
poll_mask = hotkey_source_mask;
|
|
event_mask = hotkey_source_mask &
|
|
(hotkey_driver_mask | hotkey_user_mask);
|
|
poll_freq = hotkey_poll_freq;
|
|
mutex_unlock(&hotkey_thread_data_mutex);
|
|
hotkey_read_nvram(&s[so], poll_mask);
|
|
|
|
while (!kthread_should_stop()) {
|
|
if (t == 0) {
|
|
if (likely(poll_freq))
|
|
t = 1000/poll_freq;
|
|
else
|
|
t = 100; /* should never happen... */
|
|
}
|
|
t = msleep_interruptible(t);
|
|
if (unlikely(kthread_freezable_should_stop(&was_frozen)))
|
|
break;
|
|
|
|
if (t > 0 && !was_frozen)
|
|
continue;
|
|
|
|
mutex_lock(&hotkey_thread_data_mutex);
|
|
if (was_frozen || hotkey_config_change != change_detector) {
|
|
/* forget old state on thaw or config change */
|
|
si = so;
|
|
t = 0;
|
|
change_detector = hotkey_config_change;
|
|
}
|
|
poll_mask = hotkey_source_mask;
|
|
event_mask = hotkey_source_mask &
|
|
(hotkey_driver_mask | hotkey_user_mask);
|
|
poll_freq = hotkey_poll_freq;
|
|
mutex_unlock(&hotkey_thread_data_mutex);
|
|
|
|
if (likely(poll_mask)) {
|
|
hotkey_read_nvram(&s[si], poll_mask);
|
|
if (likely(si != so)) {
|
|
hotkey_compare_and_issue_event(&s[so], &s[si],
|
|
event_mask);
|
|
}
|
|
}
|
|
|
|
so = si;
|
|
si ^= 1;
|
|
}
|
|
|
|
exit:
|
|
return 0;
|
|
}
|
|
|
|
/* call with hotkey_mutex held */
|
|
static void hotkey_poll_stop_sync(void)
|
|
{
|
|
if (tpacpi_hotkey_task) {
|
|
kthread_stop(tpacpi_hotkey_task);
|
|
tpacpi_hotkey_task = NULL;
|
|
}
|
|
}
|
|
|
|
/* call with hotkey_mutex held */
|
|
static void hotkey_poll_setup(const bool may_warn)
|
|
{
|
|
const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask;
|
|
const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask;
|
|
|
|
if (hotkey_poll_freq > 0 &&
|
|
(poll_driver_mask ||
|
|
(poll_user_mask && tpacpi_inputdev->users > 0))) {
|
|
if (!tpacpi_hotkey_task) {
|
|
tpacpi_hotkey_task = kthread_run(hotkey_kthread,
|
|
NULL, TPACPI_NVRAM_KTHREAD_NAME);
|
|
if (IS_ERR(tpacpi_hotkey_task)) {
|
|
tpacpi_hotkey_task = NULL;
|
|
pr_err("could not create kernel thread for hotkey polling\n");
|
|
}
|
|
}
|
|
} else {
|
|
hotkey_poll_stop_sync();
|
|
if (may_warn && (poll_driver_mask || poll_user_mask) &&
|
|
hotkey_poll_freq == 0) {
|
|
pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n",
|
|
poll_user_mask, poll_driver_mask);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hotkey_poll_setup_safe(const bool may_warn)
|
|
{
|
|
mutex_lock(&hotkey_mutex);
|
|
hotkey_poll_setup(may_warn);
|
|
mutex_unlock(&hotkey_mutex);
|
|
}
|
|
|
|
/* call with hotkey_mutex held */
|
|
static void hotkey_poll_set_freq(unsigned int freq)
|
|
{
|
|
if (!freq)
|
|
hotkey_poll_stop_sync();
|
|
|
|
hotkey_poll_freq = freq;
|
|
}
|
|
|
|
#else /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
static void hotkey_poll_setup(const bool __unused)
|
|
{
|
|
}
|
|
|
|
static void hotkey_poll_setup_safe(const bool __unused)
|
|
{
|
|
}
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
static int hotkey_inputdev_open(struct input_dev *dev)
|
|
{
|
|
switch (tpacpi_lifecycle) {
|
|
case TPACPI_LIFE_INIT:
|
|
case TPACPI_LIFE_RUNNING:
|
|
hotkey_poll_setup_safe(false);
|
|
return 0;
|
|
case TPACPI_LIFE_EXITING:
|
|
return -EBUSY;
|
|
}
|
|
|
|
/* Should only happen if tpacpi_lifecycle is corrupt */
|
|
BUG();
|
|
return -EBUSY;
|
|
}
|
|
|
|
static void hotkey_inputdev_close(struct input_dev *dev)
|
|
{
|
|
/* disable hotkey polling when possible */
|
|
if (tpacpi_lifecycle != TPACPI_LIFE_EXITING &&
|
|
!(hotkey_source_mask & hotkey_driver_mask))
|
|
hotkey_poll_setup_safe(false);
|
|
}
|
|
|
|
/* sysfs hotkey enable ------------------------------------------------- */
|
|
static ssize_t hotkey_enable_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res, status;
|
|
|
|
printk_deprecated_attribute("hotkey_enable",
|
|
"Hotkey reporting is always enabled");
|
|
|
|
res = hotkey_status_get(&status);
|
|
if (res)
|
|
return res;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", status);
|
|
}
|
|
|
|
static ssize_t hotkey_enable_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
printk_deprecated_attribute("hotkey_enable",
|
|
"Hotkeys can be disabled through hotkey_mask");
|
|
|
|
if (parse_strtoul(buf, 1, &t))
|
|
return -EINVAL;
|
|
|
|
if (t == 0)
|
|
return -EPERM;
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(hotkey_enable);
|
|
|
|
/* sysfs hotkey mask --------------------------------------------------- */
|
|
static ssize_t hotkey_mask_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_user_mask);
|
|
}
|
|
|
|
static ssize_t hotkey_mask_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
int res;
|
|
|
|
if (parse_strtoul(buf, 0xffffffffUL, &t))
|
|
return -EINVAL;
|
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
res = hotkey_user_mask_set(t);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
hotkey_poll_setup(true);
|
|
#endif
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t);
|
|
|
|
return (res) ? res : count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(hotkey_mask);
|
|
|
|
/* sysfs hotkey bios_enabled ------------------------------------------- */
|
|
static ssize_t hotkey_bios_enabled_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return sprintf(buf, "0\n");
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_bios_enabled);
|
|
|
|
/* sysfs hotkey bios_mask ---------------------------------------------- */
|
|
static ssize_t hotkey_bios_mask_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
printk_deprecated_attribute("hotkey_bios_mask",
|
|
"This attribute is useless.");
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_orig_mask);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_bios_mask);
|
|
|
|
/* sysfs hotkey all_mask ----------------------------------------------- */
|
|
static ssize_t hotkey_all_mask_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n",
|
|
hotkey_all_mask | hotkey_source_mask);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_all_mask);
|
|
|
|
/* sysfs hotkey all_mask ----------------------------------------------- */
|
|
static ssize_t hotkey_adaptive_all_mask_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n",
|
|
hotkey_adaptive_all_mask | hotkey_source_mask);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_adaptive_all_mask);
|
|
|
|
/* sysfs hotkey recommended_mask --------------------------------------- */
|
|
static ssize_t hotkey_recommended_mask_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n",
|
|
(hotkey_all_mask | hotkey_source_mask)
|
|
& ~hotkey_reserved_mask);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_recommended_mask);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
|
|
/* sysfs hotkey hotkey_source_mask ------------------------------------- */
|
|
static ssize_t hotkey_source_mask_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "0x%08x\n", hotkey_source_mask);
|
|
}
|
|
|
|
static ssize_t hotkey_source_mask_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
u32 r_ev;
|
|
int rc;
|
|
|
|
if (parse_strtoul(buf, 0xffffffffUL, &t) ||
|
|
((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0))
|
|
return -EINVAL;
|
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
HOTKEY_CONFIG_CRITICAL_START
|
|
hotkey_source_mask = t;
|
|
HOTKEY_CONFIG_CRITICAL_END
|
|
|
|
rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) &
|
|
~hotkey_source_mask);
|
|
hotkey_poll_setup(true);
|
|
|
|
/* check if events needed by the driver got disabled */
|
|
r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask)
|
|
& ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK;
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
if (rc < 0)
|
|
pr_err("hotkey_source_mask: failed to update the firmware event mask!\n");
|
|
|
|
if (r_ev)
|
|
pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n",
|
|
r_ev);
|
|
|
|
tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t);
|
|
|
|
return (rc < 0) ? rc : count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(hotkey_source_mask);
|
|
|
|
/* sysfs hotkey hotkey_poll_freq --------------------------------------- */
|
|
static ssize_t hotkey_poll_freq_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_poll_freq);
|
|
}
|
|
|
|
static ssize_t hotkey_poll_freq_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 25, &t))
|
|
return -EINVAL;
|
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
hotkey_poll_set_freq(t);
|
|
hotkey_poll_setup(true);
|
|
|
|
mutex_unlock(&hotkey_mutex);
|
|
|
|
tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t);
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(hotkey_poll_freq);
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
|
|
|
|
/* sysfs hotkey radio_sw (pollable) ------------------------------------ */
|
|
static ssize_t hotkey_radio_sw_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res;
|
|
res = hotkey_get_wlsw();
|
|
if (res < 0)
|
|
return res;
|
|
|
|
/* Opportunistic update */
|
|
tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF));
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n",
|
|
(res == TPACPI_RFK_RADIO_OFF) ? 0 : 1);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_radio_sw);
|
|
|
|
static void hotkey_radio_sw_notify_change(void)
|
|
{
|
|
if (tp_features.hotkey_wlsw)
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
"hotkey_radio_sw");
|
|
}
|
|
|
|
/* sysfs hotkey tablet mode (pollable) --------------------------------- */
|
|
static ssize_t hotkey_tablet_mode_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res, s;
|
|
res = hotkey_get_tablet_mode(&s);
|
|
if (res < 0)
|
|
return res;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", !!s);
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(hotkey_tablet_mode);
|
|
|
|
static void hotkey_tablet_mode_notify_change(void)
|
|
{
|
|
if (tp_features.hotkey_tablet)
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
"hotkey_tablet_mode");
|
|
}
|
|
|
|
/* sysfs wakeup reason (pollable) -------------------------------------- */
|
|
static ssize_t hotkey_wakeup_reason_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_wakeup_reason);
|
|
}
|
|
|
|
static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL);
|
|
|
|
static void hotkey_wakeup_reason_notify_change(void)
|
|
{
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
"wakeup_reason");
|
|
}
|
|
|
|
/* sysfs wakeup hotunplug_complete (pollable) -------------------------- */
|
|
static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", hotkey_autosleep_ack);
|
|
}
|
|
|
|
static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO,
|
|
hotkey_wakeup_hotunplug_complete_show, NULL);
|
|
|
|
static void hotkey_wakeup_hotunplug_complete_notify_change(void)
|
|
{
|
|
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
|
|
"wakeup_hotunplug_complete");
|
|
}
|
|
|
|
/* sysfs adaptive kbd mode --------------------------------------------- */
|
|
|
|
static int adaptive_keyboard_get_mode(void);
|
|
static int adaptive_keyboard_set_mode(int new_mode);
|
|
|
|
enum ADAPTIVE_KEY_MODE {
|
|
HOME_MODE,
|
|
WEB_BROWSER_MODE,
|
|
WEB_CONFERENCE_MODE,
|
|
FUNCTION_MODE,
|
|
LAYFLAT_MODE
|
|
};
|
|
|
|
static ssize_t adaptive_kbd_mode_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int current_mode;
|
|
|
|
current_mode = adaptive_keyboard_get_mode();
|
|
if (current_mode < 0)
|
|
return current_mode;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", current_mode);
|
|
}
|
|
|
|
static ssize_t adaptive_kbd_mode_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
int res;
|
|
|
|
if (parse_strtoul(buf, LAYFLAT_MODE, &t))
|
|
return -EINVAL;
|
|
|
|
res = adaptive_keyboard_set_mode(t);
|
|
return (res < 0) ? res : count;
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(adaptive_kbd_mode);
|
|
|
|
static struct attribute *adaptive_kbd_attributes[] = {
|
|
&dev_attr_adaptive_kbd_mode.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group adaptive_kbd_attr_group = {
|
|
.attrs = adaptive_kbd_attributes,
|
|
};
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static struct attribute *hotkey_attributes[] __initdata = {
|
|
&dev_attr_hotkey_enable.attr,
|
|
&dev_attr_hotkey_bios_enabled.attr,
|
|
&dev_attr_hotkey_bios_mask.attr,
|
|
&dev_attr_wakeup_reason.attr,
|
|
&dev_attr_wakeup_hotunplug_complete.attr,
|
|
&dev_attr_hotkey_mask.attr,
|
|
&dev_attr_hotkey_all_mask.attr,
|
|
&dev_attr_hotkey_adaptive_all_mask.attr,
|
|
&dev_attr_hotkey_recommended_mask.attr,
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
&dev_attr_hotkey_source_mask.attr,
|
|
&dev_attr_hotkey_poll_freq.attr,
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* Sync both the hw and sw blocking state of all switches
|
|
*/
|
|
static void tpacpi_send_radiosw_update(void)
|
|
{
|
|
int wlsw;
|
|
|
|
/*
|
|
* We must sync all rfkill controllers *before* issuing any
|
|
* rfkill input events, or we will race the rfkill core input
|
|
* handler.
|
|
*
|
|
* tpacpi_inputdev_send_mutex works as a synchronization point
|
|
* for the above.
|
|
*
|
|
* We optimize to avoid numerous calls to hotkey_get_wlsw.
|
|
*/
|
|
|
|
wlsw = hotkey_get_wlsw();
|
|
|
|
/* Sync hw blocking state first if it is hw-blocked */
|
|
if (wlsw == TPACPI_RFK_RADIO_OFF)
|
|
tpacpi_rfk_update_hwblock_state(true);
|
|
|
|
/* Sync sw blocking state */
|
|
tpacpi_rfk_update_swstate_all();
|
|
|
|
/* Sync hw blocking state last if it is hw-unblocked */
|
|
if (wlsw == TPACPI_RFK_RADIO_ON)
|
|
tpacpi_rfk_update_hwblock_state(false);
|
|
|
|
/* Issue rfkill input event for WLSW switch */
|
|
if (!(wlsw < 0)) {
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
|
|
|
input_report_switch(tpacpi_inputdev,
|
|
SW_RFKILL_ALL, (wlsw > 0));
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
}
|
|
|
|
/*
|
|
* this can be unconditional, as we will poll state again
|
|
* if userspace uses the notify to read data
|
|
*/
|
|
hotkey_radio_sw_notify_change();
|
|
}
|
|
|
|
static void hotkey_exit(void)
|
|
{
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
mutex_lock(&hotkey_mutex);
|
|
hotkey_poll_stop_sync();
|
|
mutex_unlock(&hotkey_mutex);
|
|
#endif
|
|
|
|
if (hotkey_dev_attributes)
|
|
delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
|
|
|
|
dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY,
|
|
"restoring original HKEY status and mask\n");
|
|
/* yes, there is a bitwise or below, we want the
|
|
* functions to be called even if one of them fail */
|
|
if (((tp_features.hotkey_mask &&
|
|
hotkey_mask_set(hotkey_orig_mask)) |
|
|
hotkey_status_set(false)) != 0)
|
|
pr_err("failed to restore hot key mask to BIOS defaults\n");
|
|
}
|
|
|
|
static void __init hotkey_unmap(const unsigned int scancode)
|
|
{
|
|
if (hotkey_keycode_map[scancode] != KEY_RESERVED) {
|
|
clear_bit(hotkey_keycode_map[scancode],
|
|
tpacpi_inputdev->keybit);
|
|
hotkey_keycode_map[scancode] = KEY_RESERVED;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* HKEY quirks:
|
|
* TPACPI_HK_Q_INIMASK: Supports FN+F3,FN+F4,FN+F12
|
|
*/
|
|
|
|
#define TPACPI_HK_Q_INIMASK 0x0001
|
|
|
|
static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
|
|
TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK), /* 600E */
|
|
TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK), /* 600E */
|
|
TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK), /* 770, 770E, 770ED */
|
|
TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK), /* A20m */
|
|
TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK), /* A20p */
|
|
TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK), /* A21e, A22e */
|
|
TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK), /* A21e */
|
|
TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK), /* A21m, A22m */
|
|
TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK), /* A21p, A22p */
|
|
TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK), /* A22e */
|
|
TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK), /* A22m */
|
|
TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK), /* A30/p (0) */
|
|
TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK), /* R30 */
|
|
TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK), /* R31 */
|
|
TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK), /* T20 */
|
|
TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK), /* T21 */
|
|
TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK), /* T22 */
|
|
TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK), /* X20, X21 */
|
|
TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */
|
|
};
|
|
|
|
typedef u16 tpacpi_keymap_entry_t;
|
|
typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
|
|
|
|
static int hotkey_init_tablet_mode(void)
|
|
{
|
|
int in_tablet_mode = 0, res;
|
|
char *type = NULL;
|
|
|
|
if (acpi_evalf(hkey_handle, &res, "GMMS", "qdd", 0)) {
|
|
int has_tablet_mode;
|
|
|
|
in_tablet_mode = hotkey_gmms_get_tablet_mode(res,
|
|
&has_tablet_mode);
|
|
if (has_tablet_mode)
|
|
tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_GMMS;
|
|
type = "GMMS";
|
|
} else if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) {
|
|
/* For X41t, X60t, X61t Tablets... */
|
|
tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG;
|
|
in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK);
|
|
type = "MHKG";
|
|
}
|
|
|
|
if (!tp_features.hotkey_tablet)
|
|
return 0;
|
|
|
|
pr_info("Tablet mode switch found (type: %s), currently in %s mode\n",
|
|
type, in_tablet_mode ? "tablet" : "laptop");
|
|
|
|
res = add_to_attr_set(hotkey_dev_attributes,
|
|
&dev_attr_hotkey_tablet_mode.attr);
|
|
if (res)
|
|
return -1;
|
|
|
|
return in_tablet_mode;
|
|
}
|
|
|
|
static int __init hotkey_init(struct ibm_init_struct *iibm)
|
|
{
|
|
/* Requirements for changing the default keymaps:
|
|
*
|
|
* 1. Many of the keys are mapped to KEY_RESERVED for very
|
|
* good reasons. Do not change them unless you have deep
|
|
* knowledge on the IBM and Lenovo ThinkPad firmware for
|
|
* the various ThinkPad models. The driver behaves
|
|
* differently for KEY_RESERVED: such keys have their
|
|
* hot key mask *unset* in mask_recommended, and also
|
|
* in the initial hot key mask programmed into the
|
|
* firmware at driver load time, which means the firm-
|
|
* ware may react very differently if you change them to
|
|
* something else;
|
|
*
|
|
* 2. You must be subscribed to the linux-thinkpad and
|
|
* ibm-acpi-devel mailing lists, and you should read the
|
|
* list archives since 2007 if you want to change the
|
|
* keymaps. This requirement exists so that you will
|
|
* know the past history of problems with the thinkpad-
|
|
* acpi driver keymaps, and also that you will be
|
|
* listening to any bug reports;
|
|
*
|
|
* 3. Do not send thinkpad-acpi specific patches directly to
|
|
* for merging, *ever*. Send them to the linux-acpi
|
|
* mailinglist for comments. Merging is to be done only
|
|
* through acpi-test and the ACPI maintainer.
|
|
*
|
|
* If the above is too much to ask, don't change the keymap.
|
|
* Ask the thinkpad-acpi maintainer to do it, instead.
|
|
*/
|
|
|
|
enum keymap_index {
|
|
TPACPI_KEYMAP_IBM_GENERIC = 0,
|
|
TPACPI_KEYMAP_LENOVO_GENERIC,
|
|
};
|
|
|
|
static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = {
|
|
/* Generic keymap for IBM ThinkPads */
|
|
[TPACPI_KEYMAP_IBM_GENERIC] = {
|
|
/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
|
|
KEY_FN_F1, KEY_BATTERY, KEY_COFFEE, KEY_SLEEP,
|
|
KEY_WLAN, KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
|
|
KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
|
|
|
|
/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
|
|
KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
|
|
KEY_UNKNOWN, /* 0x0D: FN+INSERT */
|
|
KEY_UNKNOWN, /* 0x0E: FN+DELETE */
|
|
|
|
/* brightness: firmware always reacts to them */
|
|
KEY_RESERVED, /* 0x0F: FN+HOME (brightness up) */
|
|
KEY_RESERVED, /* 0x10: FN+END (brightness down) */
|
|
|
|
/* Thinklight: firmware always react to it */
|
|
KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
|
|
|
|
KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
|
|
KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
|
|
|
|
/* Volume: firmware always react to it and reprograms
|
|
* the built-in *extra* mixer. Never map it to control
|
|
* another mixer by default. */
|
|
KEY_RESERVED, /* 0x14: VOLUME UP */
|
|
KEY_RESERVED, /* 0x15: VOLUME DOWN */
|
|
KEY_RESERVED, /* 0x16: MUTE */
|
|
|
|
KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
|
|
|
|
/* (assignments unknown, please report if found) */
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
/* No assignments, only used for Adaptive keyboards. */
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
/* No assignment, used for newer Lenovo models */
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN
|
|
|
|
},
|
|
|
|
/* Generic keymap for Lenovo ThinkPads */
|
|
[TPACPI_KEYMAP_LENOVO_GENERIC] = {
|
|
/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
|
|
KEY_FN_F1, KEY_COFFEE, KEY_BATTERY, KEY_SLEEP,
|
|
KEY_WLAN, KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
|
|
KEY_FN_F9, KEY_FN_F10, KEY_FN_F11, KEY_SUSPEND,
|
|
|
|
/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
|
|
KEY_UNKNOWN, /* 0x0C: FN+BACKSPACE */
|
|
KEY_UNKNOWN, /* 0x0D: FN+INSERT */
|
|
KEY_UNKNOWN, /* 0x0E: FN+DELETE */
|
|
|
|
/* These should be enabled --only-- when ACPI video
|
|
* is disabled (i.e. in "vendor" mode), and are handled
|
|
* in a special way by the init code */
|
|
KEY_BRIGHTNESSUP, /* 0x0F: FN+HOME (brightness up) */
|
|
KEY_BRIGHTNESSDOWN, /* 0x10: FN+END (brightness down) */
|
|
|
|
KEY_RESERVED, /* 0x11: FN+PGUP (thinklight toggle) */
|
|
|
|
KEY_UNKNOWN, /* 0x12: FN+PGDOWN */
|
|
KEY_ZOOM, /* 0x13: FN+SPACE (zoom) */
|
|
|
|
/* Volume: z60/z61, T60 (BIOS version?): firmware always
|
|
* react to it and reprograms the built-in *extra* mixer.
|
|
* Never map it to control another mixer by default.
|
|
*
|
|
* T60?, T61, R60?, R61: firmware and EC tries to send
|
|
* these over the regular keyboard, so these are no-ops,
|
|
* but there are still weird bugs re. MUTE, so do not
|
|
* change unless you get test reports from all Lenovo
|
|
* models. May cause the BIOS to interfere with the
|
|
* HDA mixer.
|
|
*/
|
|
KEY_RESERVED, /* 0x14: VOLUME UP */
|
|
KEY_RESERVED, /* 0x15: VOLUME DOWN */
|
|
KEY_RESERVED, /* 0x16: MUTE */
|
|
|
|
KEY_VENDOR, /* 0x17: Thinkpad/AccessIBM/Lenovo */
|
|
|
|
/* (assignments unknown, please report if found) */
|
|
KEY_UNKNOWN, KEY_UNKNOWN,
|
|
|
|
/*
|
|
* The mic mute button only sends 0x1a. It does not
|
|
* automatically mute the mic or change the mute light.
|
|
*/
|
|
KEY_MICMUTE, /* 0x1a: Mic mute (since ?400 or so) */
|
|
|
|
/* (assignments unknown, please report if found) */
|
|
KEY_UNKNOWN,
|
|
|
|
/* Extra keys in use since the X240 / T440 / T540 */
|
|
KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE,
|
|
|
|
/*
|
|
* These are the adaptive keyboard keycodes for Carbon X1 2014.
|
|
* The first item in this list is the Mute button which is
|
|
* emitted with 0x103 through
|
|
* adaptive_keyboard_hotkey_notify_hotkey() when the sound
|
|
* symbol is held.
|
|
* We'll need to offset those by 0x20.
|
|
*/
|
|
KEY_RESERVED, /* Mute held, 0x103 */
|
|
KEY_BRIGHTNESS_MIN, /* Backlight off */
|
|
KEY_RESERVED, /* Clipping tool */
|
|
KEY_RESERVED, /* Cloud */
|
|
KEY_RESERVED,
|
|
KEY_VOICECOMMAND, /* Voice */
|
|
KEY_RESERVED,
|
|
KEY_RESERVED, /* Gestures */
|
|
KEY_RESERVED,
|
|
KEY_RESERVED,
|
|
KEY_RESERVED,
|
|
KEY_CONFIG, /* Settings */
|
|
KEY_RESERVED, /* New tab */
|
|
KEY_REFRESH, /* Reload */
|
|
KEY_BACK, /* Back */
|
|
KEY_RESERVED, /* Microphone down */
|
|
KEY_RESERVED, /* Microphone up */
|
|
KEY_RESERVED, /* Microphone cancellation */
|
|
KEY_RESERVED, /* Camera mode */
|
|
KEY_RESERVED, /* Rotate display, 0x116 */
|
|
|
|
/*
|
|
* These are found in 2017 models (e.g. T470s, X270).
|
|
* The lowest known value is 0x311, which according to
|
|
* the manual should launch a user defined favorite
|
|
* application.
|
|
*
|
|
* The offset for these is TP_ACPI_HOTKEYSCAN_EXTENDED_START,
|
|
* corresponding to 0x34.
|
|
*/
|
|
|
|
/* (assignments unknown, please report if found) */
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
|
|
KEY_UNKNOWN,
|
|
|
|
KEY_BOOKMARKS, /* Favorite app, 0x311 */
|
|
KEY_RESERVED, /* Clipping tool */
|
|
KEY_CALC, /* Calculator (above numpad, P52) */
|
|
KEY_BLUETOOTH, /* Bluetooth */
|
|
KEY_KEYBOARD /* Keyboard, 0x315 */
|
|
},
|
|
};
|
|
|
|
static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = {
|
|
/* Generic maps (fallback) */
|
|
{
|
|
.vendor = PCI_VENDOR_ID_IBM,
|
|
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
|
|
.quirks = TPACPI_KEYMAP_IBM_GENERIC,
|
|
},
|
|
{
|
|
.vendor = PCI_VENDOR_ID_LENOVO,
|
|
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
|
|
.quirks = TPACPI_KEYMAP_LENOVO_GENERIC,
|
|
},
|
|
};
|
|
|
|
#define TPACPI_HOTKEY_MAP_SIZE sizeof(tpacpi_keymap_t)
|
|
#define TPACPI_HOTKEY_MAP_TYPESIZE sizeof(tpacpi_keymap_entry_t)
|
|
|
|
int res, i;
|
|
int status;
|
|
int hkeyv;
|
|
bool radiosw_state = false;
|
|
bool tabletsw_state = false;
|
|
|
|
unsigned long quirks;
|
|
unsigned long keymap_id;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"initializing hotkey subdriver\n");
|
|
|
|
BUG_ON(!tpacpi_inputdev);
|
|
BUG_ON(tpacpi_inputdev->open != NULL ||
|
|
tpacpi_inputdev->close != NULL);
|
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
|
mutex_init(&hotkey_mutex);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
mutex_init(&hotkey_thread_data_mutex);
|
|
#endif
|
|
|
|
/* hotkey not supported on 570 */
|
|
tp_features.hotkey = hkey_handle != NULL;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"hotkeys are %s\n",
|
|
str_supported(tp_features.hotkey));
|
|
|
|
if (!tp_features.hotkey)
|
|
return 1;
|
|
|
|
quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable,
|
|
ARRAY_SIZE(tpacpi_hotkey_qtable));
|
|
|
|
tpacpi_disable_brightness_delay();
|
|
|
|
/* MUST have enough space for all attributes to be added to
|
|
* hotkey_dev_attributes */
|
|
hotkey_dev_attributes = create_attr_set(
|
|
ARRAY_SIZE(hotkey_attributes) + 2,
|
|
NULL);
|
|
if (!hotkey_dev_attributes)
|
|
return -ENOMEM;
|
|
res = add_many_to_attr_set(hotkey_dev_attributes,
|
|
hotkey_attributes,
|
|
ARRAY_SIZE(hotkey_attributes));
|
|
if (res)
|
|
goto err_exit;
|
|
|
|
/* mask not supported on 600e/x, 770e, 770x, A21e, A2xm/p,
|
|
A30, R30, R31, T20-22, X20-21, X22-24. Detected by checking
|
|
for HKEY interface version 0x100 */
|
|
if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"firmware HKEY interface version: 0x%x\n",
|
|
hkeyv);
|
|
|
|
switch (hkeyv >> 8) {
|
|
case 1:
|
|
/*
|
|
* MHKV 0x100 in A31, R40, R40e,
|
|
* T4x, X31, and later
|
|
*/
|
|
|
|
/* Paranoia check AND init hotkey_all_mask */
|
|
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
|
|
"MHKA", "qd")) {
|
|
pr_err("missing MHKA handler, please report this to %s\n",
|
|
TPACPI_MAIL);
|
|
/* Fallback: pre-init for FN+F3,F4,F12 */
|
|
hotkey_all_mask = 0x080cU;
|
|
} else {
|
|
tp_features.hotkey_mask = 1;
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
/*
|
|
* MHKV 0x200 in X1, T460s, X260, T560, X1 Tablet (2016)
|
|
*/
|
|
|
|
/* Paranoia check AND init hotkey_all_mask */
|
|
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
|
|
"MHKA", "dd", 1)) {
|
|
pr_err("missing MHKA handler, please report this to %s\n",
|
|
TPACPI_MAIL);
|
|
/* Fallback: pre-init for FN+F3,F4,F12 */
|
|
hotkey_all_mask = 0x080cU;
|
|
} else {
|
|
tp_features.hotkey_mask = 1;
|
|
}
|
|
|
|
/*
|
|
* Check if we have an adaptive keyboard, like on the
|
|
* Lenovo Carbon X1 2014 (2nd Gen).
|
|
*/
|
|
if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask,
|
|
"MHKA", "dd", 2)) {
|
|
if (hotkey_adaptive_all_mask != 0) {
|
|
tp_features.has_adaptive_kbd = true;
|
|
res = sysfs_create_group(
|
|
&tpacpi_pdev->dev.kobj,
|
|
&adaptive_kbd_attr_group);
|
|
if (res)
|
|
goto err_exit;
|
|
}
|
|
} else {
|
|
tp_features.has_adaptive_kbd = false;
|
|
hotkey_adaptive_all_mask = 0x0U;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
pr_err("unknown version of the HKEY interface: 0x%x\n",
|
|
hkeyv);
|
|
pr_err("please report this to %s\n", TPACPI_MAIL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"hotkey masks are %s\n",
|
|
str_supported(tp_features.hotkey_mask));
|
|
|
|
/* Init hotkey_all_mask if not initialized yet */
|
|
if (!tp_features.hotkey_mask && !hotkey_all_mask &&
|
|
(quirks & TPACPI_HK_Q_INIMASK))
|
|
hotkey_all_mask = 0x080cU; /* FN+F12, FN+F4, FN+F3 */
|
|
|
|
/* Init hotkey_acpi_mask and hotkey_orig_mask */
|
|
if (tp_features.hotkey_mask) {
|
|
/* hotkey_source_mask *must* be zero for
|
|
* the first hotkey_mask_get to return hotkey_orig_mask */
|
|
res = hotkey_mask_get();
|
|
if (res)
|
|
goto err_exit;
|
|
|
|
hotkey_orig_mask = hotkey_acpi_mask;
|
|
} else {
|
|
hotkey_orig_mask = hotkey_all_mask;
|
|
hotkey_acpi_mask = hotkey_all_mask;
|
|
}
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_wlswemul) {
|
|
tp_features.hotkey_wlsw = 1;
|
|
radiosw_state = !!tpacpi_wlsw_emulstate;
|
|
pr_info("radio switch emulation enabled\n");
|
|
} else
|
|
#endif
|
|
/* Not all thinkpads have a hardware radio switch */
|
|
if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
|
|
tp_features.hotkey_wlsw = 1;
|
|
radiosw_state = !!status;
|
|
pr_info("radio switch found; radios are %s\n",
|
|
enabled(status, 0));
|
|
}
|
|
if (tp_features.hotkey_wlsw)
|
|
res = add_to_attr_set(hotkey_dev_attributes,
|
|
&dev_attr_hotkey_radio_sw.attr);
|
|
|
|
res = hotkey_init_tablet_mode();
|
|
if (res < 0)
|
|
goto err_exit;
|
|
|
|
tabletsw_state = res;
|
|
|
|
res = register_attr_set_with_sysfs(hotkey_dev_attributes,
|
|
&tpacpi_pdev->dev.kobj);
|
|
if (res)
|
|
goto err_exit;
|
|
|
|
/* Set up key map */
|
|
hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE,
|
|
GFP_KERNEL);
|
|
if (!hotkey_keycode_map) {
|
|
pr_err("failed to allocate memory for key map\n");
|
|
res = -ENOMEM;
|
|
goto err_exit;
|
|
}
|
|
|
|
keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable,
|
|
ARRAY_SIZE(tpacpi_keymap_qtable));
|
|
BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps));
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"using keymap number %lu\n", keymap_id);
|
|
|
|
memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id],
|
|
TPACPI_HOTKEY_MAP_SIZE);
|
|
|
|
input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN);
|
|
tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE;
|
|
tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN;
|
|
tpacpi_inputdev->keycode = hotkey_keycode_map;
|
|
for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) {
|
|
if (hotkey_keycode_map[i] != KEY_RESERVED) {
|
|
input_set_capability(tpacpi_inputdev, EV_KEY,
|
|
hotkey_keycode_map[i]);
|
|
} else {
|
|
if (i < sizeof(hotkey_reserved_mask)*8)
|
|
hotkey_reserved_mask |= 1 << i;
|
|
}
|
|
}
|
|
|
|
if (tp_features.hotkey_wlsw) {
|
|
input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL);
|
|
input_report_switch(tpacpi_inputdev,
|
|
SW_RFKILL_ALL, radiosw_state);
|
|
}
|
|
if (tp_features.hotkey_tablet) {
|
|
input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE);
|
|
input_report_switch(tpacpi_inputdev,
|
|
SW_TABLET_MODE, tabletsw_state);
|
|
}
|
|
|
|
/* Do not issue duplicate brightness change events to
|
|
* userspace. tpacpi_detect_brightness_capabilities() must have
|
|
* been called before this point */
|
|
if (acpi_video_get_backlight_type() != acpi_backlight_vendor) {
|
|
pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n");
|
|
pr_notice("Disabling thinkpad-acpi brightness events by default...\n");
|
|
|
|
/* Disable brightness up/down on Lenovo thinkpads when
|
|
* ACPI is handling them, otherwise it is plain impossible
|
|
* for userspace to do something even remotely sane */
|
|
hotkey_reserved_mask |=
|
|
(1 << TP_ACPI_HOTKEYSCAN_FNHOME)
|
|
| (1 << TP_ACPI_HOTKEYSCAN_FNEND);
|
|
hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME);
|
|
hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND);
|
|
}
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
|
|
hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK
|
|
& ~hotkey_all_mask
|
|
& ~hotkey_reserved_mask;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"hotkey source mask 0x%08x, polling freq %u\n",
|
|
hotkey_source_mask, hotkey_poll_freq);
|
|
#endif
|
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"enabling firmware HKEY event interface...\n");
|
|
res = hotkey_status_set(true);
|
|
if (res) {
|
|
hotkey_exit();
|
|
return res;
|
|
}
|
|
res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask)
|
|
| hotkey_driver_mask)
|
|
& ~hotkey_source_mask);
|
|
if (res < 0 && res != -ENXIO) {
|
|
hotkey_exit();
|
|
return res;
|
|
}
|
|
hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask)
|
|
& ~hotkey_reserved_mask;
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
|
|
"initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n",
|
|
hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask);
|
|
|
|
tpacpi_inputdev->open = &hotkey_inputdev_open;
|
|
tpacpi_inputdev->close = &hotkey_inputdev_close;
|
|
|
|
hotkey_poll_setup_safe(true);
|
|
|
|
return 0;
|
|
|
|
err_exit:
|
|
delete_attr_set(hotkey_dev_attributes, &tpacpi_pdev->dev.kobj);
|
|
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
|
|
&adaptive_kbd_attr_group);
|
|
|
|
hotkey_dev_attributes = NULL;
|
|
|
|
return (res < 0) ? res : 1;
|
|
}
|
|
|
|
/* Thinkpad X1 Carbon support 5 modes including Home mode, Web browser
|
|
* mode, Web conference mode, Function mode and Lay-flat mode.
|
|
* We support Home mode and Function mode currently.
|
|
*
|
|
* Will consider support rest of modes in future.
|
|
*
|
|
*/
|
|
static const int adaptive_keyboard_modes[] = {
|
|
HOME_MODE,
|
|
/* WEB_BROWSER_MODE = 2,
|
|
WEB_CONFERENCE_MODE = 3, */
|
|
FUNCTION_MODE
|
|
};
|
|
|
|
#define DFR_CHANGE_ROW 0x101
|
|
#define DFR_SHOW_QUICKVIEW_ROW 0x102
|
|
#define FIRST_ADAPTIVE_KEY 0x103
|
|
|
|
/* press Fn key a while second, it will switch to Function Mode. Then
|
|
* release Fn key, previous mode be restored.
|
|
*/
|
|
static bool adaptive_keyboard_mode_is_saved;
|
|
static int adaptive_keyboard_prev_mode;
|
|
|
|
static int adaptive_keyboard_get_mode(void)
|
|
{
|
|
int mode = 0;
|
|
|
|
if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) {
|
|
pr_err("Cannot read adaptive keyboard mode\n");
|
|
return -EIO;
|
|
}
|
|
|
|
return mode;
|
|
}
|
|
|
|
static int adaptive_keyboard_set_mode(int new_mode)
|
|
{
|
|
if (new_mode < 0 ||
|
|
new_mode > LAYFLAT_MODE)
|
|
return -EINVAL;
|
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) {
|
|
pr_err("Cannot set adaptive keyboard mode\n");
|
|
return -EIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int adaptive_keyboard_get_next_mode(int mode)
|
|
{
|
|
size_t i;
|
|
size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1;
|
|
|
|
for (i = 0; i <= max_mode; i++) {
|
|
if (adaptive_keyboard_modes[i] == mode)
|
|
break;
|
|
}
|
|
|
|
if (i >= max_mode)
|
|
i = 0;
|
|
else
|
|
i++;
|
|
|
|
return adaptive_keyboard_modes[i];
|
|
}
|
|
|
|
static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode)
|
|
{
|
|
int current_mode = 0;
|
|
int new_mode = 0;
|
|
int keycode;
|
|
|
|
switch (scancode) {
|
|
case DFR_CHANGE_ROW:
|
|
if (adaptive_keyboard_mode_is_saved) {
|
|
new_mode = adaptive_keyboard_prev_mode;
|
|
adaptive_keyboard_mode_is_saved = false;
|
|
} else {
|
|
current_mode = adaptive_keyboard_get_mode();
|
|
if (current_mode < 0)
|
|
return false;
|
|
new_mode = adaptive_keyboard_get_next_mode(
|
|
current_mode);
|
|
}
|
|
|
|
if (adaptive_keyboard_set_mode(new_mode) < 0)
|
|
return false;
|
|
|
|
return true;
|
|
|
|
case DFR_SHOW_QUICKVIEW_ROW:
|
|
current_mode = adaptive_keyboard_get_mode();
|
|
if (current_mode < 0)
|
|
return false;
|
|
|
|
adaptive_keyboard_prev_mode = current_mode;
|
|
adaptive_keyboard_mode_is_saved = true;
|
|
|
|
if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0)
|
|
return false;
|
|
return true;
|
|
|
|
default:
|
|
if (scancode < FIRST_ADAPTIVE_KEY ||
|
|
scancode >= FIRST_ADAPTIVE_KEY +
|
|
TP_ACPI_HOTKEYSCAN_EXTENDED_START -
|
|
TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) {
|
|
pr_info("Unhandled adaptive keyboard key: 0x%x\n",
|
|
scancode);
|
|
return false;
|
|
}
|
|
keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY +
|
|
TP_ACPI_HOTKEYSCAN_ADAPTIVE_START];
|
|
if (keycode != KEY_RESERVED) {
|
|
mutex_lock(&tpacpi_inputdev_send_mutex);
|
|
|
|
input_report_key(tpacpi_inputdev, keycode, 1);
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
input_report_key(tpacpi_inputdev, keycode, 0);
|
|
input_sync(tpacpi_inputdev);
|
|
|
|
mutex_unlock(&tpacpi_inputdev_send_mutex);
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
|
|
static bool hotkey_notify_hotkey(const u32 hkey,
|
|
bool *send_acpi_ev,
|
|
bool *ignore_acpi_ev)
|
|
{
|
|
/* 0x1000-0x1FFF: key presses */
|
|
unsigned int scancode = hkey & 0xfff;
|
|
*send_acpi_ev = true;
|
|
*ignore_acpi_ev = false;
|
|
|
|
/*
|
|
* Original events are in the 0x10XX range, the adaptive keyboard
|
|
* found in 2014 X1 Carbon emits events are of 0x11XX. In 2017
|
|
* models, additional keys are emitted through 0x13XX.
|
|
*/
|
|
switch ((hkey >> 8) & 0xf) {
|
|
case 0:
|
|
if (scancode > 0 &&
|
|
scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) {
|
|
/* HKEY event 0x1001 is scancode 0x00 */
|
|
scancode--;
|
|
if (!(hotkey_source_mask & (1 << scancode))) {
|
|
tpacpi_input_send_key_masked(scancode);
|
|
*send_acpi_ev = false;
|
|
} else {
|
|
*ignore_acpi_ev = true;
|
|
}
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
return adaptive_keyboard_hotkey_notify_hotkey(scancode);
|
|
|
|
case 3:
|
|
/* Extended keycodes start at 0x300 and our offset into the map
|
|
* TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode
|
|
* will be positive, but might not be in the correct range.
|
|
*/
|
|
scancode -= (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START);
|
|
if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START &&
|
|
scancode < TPACPI_HOTKEY_MAP_LEN) {
|
|
tpacpi_input_send_key(scancode);
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
static bool hotkey_notify_wakeup(const u32 hkey,
|
|
bool *send_acpi_ev,
|
|
bool *ignore_acpi_ev)
|
|
{
|
|
/* 0x2000-0x2FFF: Wakeup reason */
|
|
*send_acpi_ev = true;
|
|
*ignore_acpi_ev = false;
|
|
|
|
switch (hkey) {
|
|
case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */
|
|
case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */
|
|
hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
|
|
*ignore_acpi_ev = true;
|
|
break;
|
|
|
|
case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */
|
|
case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */
|
|
hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
|
|
*ignore_acpi_ev = true;
|
|
break;
|
|
|
|
case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */
|
|
case TP_HKEY_EV_WKUP_S4_BATLOW: /* Battery on critical low level/S4 */
|
|
pr_alert("EMERGENCY WAKEUP: battery almost empty\n");
|
|
/* how to auto-heal: */
|
|
/* 2313: woke up from S3, go to S4/S5 */
|
|
/* 2413: woke up from S4, go to S5 */
|
|
break;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
|
|
pr_info("woke up due to a hot-unplug request...\n");
|
|
hotkey_wakeup_reason_notify_change();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static bool hotkey_notify_dockevent(const u32 hkey,
|
|
bool *send_acpi_ev,
|
|
bool *ignore_acpi_ev)
|
|
{
|
|
/* 0x4000-0x4FFF: dock-related events */
|
|
*send_acpi_ev = true;
|
|
*ignore_acpi_ev = false;
|
|
|
|
switch (hkey) {
|
|
case TP_HKEY_EV_UNDOCK_ACK:
|
|
/* ACPI undock operation completed after wakeup */
|
|
hotkey_autosleep_ack = 1;
|
|
pr_info("undocked\n");
|
|
hotkey_wakeup_hotunplug_complete_notify_change();
|
|
return true;
|
|
|
|
case TP_HKEY_EV_HOTPLUG_DOCK: /* docked to port replicator */
|
|
pr_info("docked into hotplug port replicator\n");
|
|
return true;
|
|
case TP_HKEY_EV_HOTPLUG_UNDOCK: /* undocked from port replicator */
|
|
pr_info("undocked from hotplug port replicator\n");
|
|
return true;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static bool hotkey_notify_usrevent(const u32 hkey,
|
|
bool *send_acpi_ev,
|
|
bool *ignore_acpi_ev)
|
|
{
|
|
/* 0x5000-0x5FFF: human interface helpers */
|
|
*send_acpi_ev = true;
|
|
*ignore_acpi_ev = false;
|
|
|
|
switch (hkey) {
|
|
case TP_HKEY_EV_PEN_INSERTED: /* X61t: tablet pen inserted into bay */
|
|
case TP_HKEY_EV_PEN_REMOVED: /* X61t: tablet pen removed from bay */
|
|
return true;
|
|
|
|
case TP_HKEY_EV_TABLET_TABLET: /* X41t-X61t: tablet mode */
|
|
case TP_HKEY_EV_TABLET_NOTEBOOK: /* X41t-X61t: normal mode */
|
|
tpacpi_input_send_tabletsw();
|
|
hotkey_tablet_mode_notify_change();
|
|
*send_acpi_ev = false;
|
|
return true;
|
|
|
|
case TP_HKEY_EV_LID_CLOSE: /* Lid closed */
|
|
case TP_HKEY_EV_LID_OPEN: /* Lid opened */
|
|
case TP_HKEY_EV_BRGHT_CHANGED: /* brightness changed */
|
|
/* do not propagate these events */
|
|
*ignore_acpi_ev = true;
|
|
return true;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static void thermal_dump_all_sensors(void);
|
|
|
|
static bool hotkey_notify_6xxx(const u32 hkey,
|
|
bool *send_acpi_ev,
|
|
bool *ignore_acpi_ev)
|
|
{
|
|
/* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */
|
|
*send_acpi_ev = true;
|
|
*ignore_acpi_ev = false;
|
|
|
|
switch (hkey) {
|
|
case TP_HKEY_EV_THM_TABLE_CHANGED:
|
|
pr_debug("EC reports: Thermal Table has changed\n");
|
|
/* recommended action: do nothing, we don't have
|
|
* Lenovo ATM information */
|
|
return true;
|
|
case TP_HKEY_EV_THM_CSM_COMPLETED:
|
|
pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n");
|
|
/* recommended action: do nothing, we don't have
|
|
* Lenovo ATM information */
|
|
return true;
|
|
case TP_HKEY_EV_THM_TRANSFM_CHANGED:
|
|
pr_debug("EC reports: Thermal Transformation changed (GMTS)\n");
|
|
/* recommended action: do nothing, we don't have
|
|
* Lenovo ATM information */
|
|
return true;
|
|
case TP_HKEY_EV_ALARM_BAT_HOT:
|
|
pr_crit("THERMAL ALARM: battery is too hot!\n");
|
|
/* recommended action: warn user through gui */
|
|
break;
|
|
case TP_HKEY_EV_ALARM_BAT_XHOT:
|
|
pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n");
|
|
/* recommended action: immediate sleep/hibernate */
|
|
break;
|
|
case TP_HKEY_EV_ALARM_SENSOR_HOT:
|
|
pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n");
|
|
/* recommended action: warn user through gui, that */
|
|
/* some internal component is too hot */
|
|
break;
|
|
case TP_HKEY_EV_ALARM_SENSOR_XHOT:
|
|
pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n");
|
|
/* recommended action: immediate sleep/hibernate */
|
|
break;
|
|
case TP_HKEY_EV_AC_CHANGED:
|
|
/* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520:
|
|
* AC status changed; can be triggered by plugging or
|
|
* unplugging AC adapter, docking or undocking. */
|
|
|
|
/* fallthrough */
|
|
|
|
case TP_HKEY_EV_KEY_NUMLOCK:
|
|
case TP_HKEY_EV_KEY_FN:
|
|
case TP_HKEY_EV_KEY_FN_ESC:
|
|
/* key press events, we just ignore them as long as the EC
|
|
* is still reporting them in the normal keyboard stream */
|
|
*send_acpi_ev = false;
|
|
*ignore_acpi_ev = true;
|
|
return true;
|
|
|
|
case TP_HKEY_EV_TABLET_CHANGED:
|
|
tpacpi_input_send_tabletsw();
|
|
hotkey_tablet_mode_notify_change();
|
|
*send_acpi_ev = false;
|
|
return true;
|
|
|
|
case TP_HKEY_EV_PALM_DETECTED:
|
|
case TP_HKEY_EV_PALM_UNDETECTED:
|
|
/* palm detected hovering the keyboard, forward to user-space
|
|
* via netlink for consumption */
|
|
return true;
|
|
|
|
default:
|
|
/* report simply as unknown, no sensor dump */
|
|
return false;
|
|
}
|
|
|
|
thermal_dump_all_sensors();
|
|
return true;
|
|
}
|
|
|
|
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
|
|
{
|
|
u32 hkey;
|
|
bool send_acpi_ev;
|
|
bool ignore_acpi_ev;
|
|
bool known_ev;
|
|
|
|
if (event != 0x80) {
|
|
pr_err("unknown HKEY notification event %d\n", event);
|
|
/* forward it to userspace, maybe it knows how to handle it */
|
|
acpi_bus_generate_netlink_event(
|
|
ibm->acpi->device->pnp.device_class,
|
|
dev_name(&ibm->acpi->device->dev),
|
|
event, 0);
|
|
return;
|
|
}
|
|
|
|
while (1) {
|
|
if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
|
|
pr_err("failed to retrieve HKEY event\n");
|
|
return;
|
|
}
|
|
|
|
if (hkey == 0) {
|
|
/* queue empty */
|
|
return;
|
|
}
|
|
|
|
send_acpi_ev = true;
|
|
ignore_acpi_ev = false;
|
|
|
|
switch (hkey >> 12) {
|
|
case 1:
|
|
/* 0x1000-0x1FFF: key presses */
|
|
known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev,
|
|
&ignore_acpi_ev);
|
|
break;
|
|
case 2:
|
|
/* 0x2000-0x2FFF: Wakeup reason */
|
|
known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev,
|
|
&ignore_acpi_ev);
|
|
break;
|
|
case 3:
|
|
/* 0x3000-0x3FFF: bay-related wakeups */
|
|
switch (hkey) {
|
|
case TP_HKEY_EV_BAYEJ_ACK:
|
|
hotkey_autosleep_ack = 1;
|
|
pr_info("bay ejected\n");
|
|
hotkey_wakeup_hotunplug_complete_notify_change();
|
|
known_ev = true;
|
|
break;
|
|
case TP_HKEY_EV_OPTDRV_EJ:
|
|
/* FIXME: kick libata if SATA link offline */
|
|
known_ev = true;
|
|
break;
|
|
default:
|
|
known_ev = false;
|
|
}
|
|
break;
|
|
case 4:
|
|
/* 0x4000-0x4FFF: dock-related events */
|
|
known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev,
|
|
&ignore_acpi_ev);
|
|
break;
|
|
case 5:
|
|
/* 0x5000-0x5FFF: human interface helpers */
|
|
known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev,
|
|
&ignore_acpi_ev);
|
|
break;
|
|
case 6:
|
|
/* 0x6000-0x6FFF: thermal alarms/notices and
|
|
* keyboard events */
|
|
known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev,
|
|
&ignore_acpi_ev);
|
|
break;
|
|
case 7:
|
|
/* 0x7000-0x7FFF: misc */
|
|
if (tp_features.hotkey_wlsw &&
|
|
hkey == TP_HKEY_EV_RFKILL_CHANGED) {
|
|
tpacpi_send_radiosw_update();
|
|
send_acpi_ev = 0;
|
|
known_ev = true;
|
|
break;
|
|
}
|
|
/* fallthrough - to default */
|
|
default:
|
|
known_ev = false;
|
|
}
|
|
if (!known_ev) {
|
|
pr_notice("unhandled HKEY event 0x%04x\n", hkey);
|
|
pr_notice("please report the conditions when this event happened to %s\n",
|
|
TPACPI_MAIL);
|
|
}
|
|
|
|
/* netlink events */
|
|
if (!ignore_acpi_ev && send_acpi_ev) {
|
|
acpi_bus_generate_netlink_event(
|
|
ibm->acpi->device->pnp.device_class,
|
|
dev_name(&ibm->acpi->device->dev),
|
|
event, hkey);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hotkey_suspend(void)
|
|
{
|
|
/* Do these on suspend, we get the events on early resume! */
|
|
hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE;
|
|
hotkey_autosleep_ack = 0;
|
|
|
|
/* save previous mode of adaptive keyboard of X1 Carbon */
|
|
if (tp_features.has_adaptive_kbd) {
|
|
if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode,
|
|
"GTRW", "dd", 0)) {
|
|
pr_err("Cannot read adaptive keyboard mode.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hotkey_resume(void)
|
|
{
|
|
tpacpi_disable_brightness_delay();
|
|
|
|
if (hotkey_status_set(true) < 0 ||
|
|
hotkey_mask_set(hotkey_acpi_mask) < 0)
|
|
pr_err("error while attempting to reset the event firmware interface\n");
|
|
|
|
tpacpi_send_radiosw_update();
|
|
hotkey_tablet_mode_notify_change();
|
|
hotkey_wakeup_reason_notify_change();
|
|
hotkey_wakeup_hotunplug_complete_notify_change();
|
|
hotkey_poll_setup_safe(false);
|
|
|
|
/* restore previous mode of adapive keyboard of X1 Carbon */
|
|
if (tp_features.has_adaptive_kbd) {
|
|
if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd",
|
|
adaptive_keyboard_prev_mode)) {
|
|
pr_err("Cannot set adaptive keyboard mode.\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* procfs -------------------------------------------------------------- */
|
|
static int hotkey_read(struct seq_file *m)
|
|
{
|
|
int res, status;
|
|
|
|
if (!tp_features.hotkey) {
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
return 0;
|
|
}
|
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
|
return -ERESTARTSYS;
|
|
res = hotkey_status_get(&status);
|
|
if (!res)
|
|
res = hotkey_mask_get();
|
|
mutex_unlock(&hotkey_mutex);
|
|
if (res)
|
|
return res;
|
|
|
|
seq_printf(m, "status:\t\t%s\n", enabled(status, 0));
|
|
if (hotkey_all_mask) {
|
|
seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask);
|
|
seq_printf(m, "commands:\tenable, disable, reset, <mask>\n");
|
|
} else {
|
|
seq_printf(m, "mask:\t\tnot supported\n");
|
|
seq_printf(m, "commands:\tenable, disable, reset\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void hotkey_enabledisable_warn(bool enable)
|
|
{
|
|
tpacpi_log_usertask("procfs hotkey enable/disable");
|
|
if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable),
|
|
pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n")))
|
|
pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n");
|
|
}
|
|
|
|
static int hotkey_write(char *buf)
|
|
{
|
|
int res;
|
|
u32 mask;
|
|
char *cmd;
|
|
|
|
if (!tp_features.hotkey)
|
|
return -ENODEV;
|
|
|
|
if (mutex_lock_killable(&hotkey_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
mask = hotkey_user_mask;
|
|
|
|
res = 0;
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (strlencmp(cmd, "enable") == 0) {
|
|
hotkey_enabledisable_warn(1);
|
|
} else if (strlencmp(cmd, "disable") == 0) {
|
|
hotkey_enabledisable_warn(0);
|
|
res = -EPERM;
|
|
} else if (strlencmp(cmd, "reset") == 0) {
|
|
mask = (hotkey_all_mask | hotkey_source_mask)
|
|
& ~hotkey_reserved_mask;
|
|
} else if (sscanf(cmd, "0x%x", &mask) == 1) {
|
|
/* mask set */
|
|
} else if (sscanf(cmd, "%x", &mask) == 1) {
|
|
/* mask set */
|
|
} else {
|
|
res = -EINVAL;
|
|
goto errexit;
|
|
}
|
|
}
|
|
|
|
if (!res) {
|
|
tpacpi_disclose_usertask("procfs hotkey",
|
|
"set mask to 0x%08x\n", mask);
|
|
res = hotkey_user_mask_set(mask);
|
|
}
|
|
|
|
errexit:
|
|
mutex_unlock(&hotkey_mutex);
|
|
return res;
|
|
}
|
|
|
|
static const struct acpi_device_id ibm_htk_device_ids[] = {
|
|
{TPACPI_ACPI_IBM_HKEY_HID, 0},
|
|
{TPACPI_ACPI_LENOVO_HKEY_HID, 0},
|
|
{TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0},
|
|
{"", 0},
|
|
};
|
|
|
|
static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = {
|
|
.hid = ibm_htk_device_ids,
|
|
.notify = hotkey_notify,
|
|
.handle = &hkey_handle,
|
|
.type = ACPI_DEVICE_NOTIFY,
|
|
};
|
|
|
|
static struct ibm_struct hotkey_driver_data = {
|
|
.name = "hotkey",
|
|
.read = hotkey_read,
|
|
.write = hotkey_write,
|
|
.exit = hotkey_exit,
|
|
.resume = hotkey_resume,
|
|
.suspend = hotkey_suspend,
|
|
.acpi = &ibm_hotkey_acpidriver,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Bluetooth subdriver
|
|
*/
|
|
|
|
enum {
|
|
/* ACPI GBDC/SBDC bits */
|
|
TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
|
|
TP_ACPI_BLUETOOTH_RADIOSSW = 0x02, /* Bluetooth radio enabled */
|
|
TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04, /* Bluetooth state at resume:
|
|
0 = disable, 1 = enable */
|
|
};
|
|
|
|
enum {
|
|
/* ACPI \BLTH commands */
|
|
TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00, /* Get Ultraport BT ID */
|
|
TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01, /* Get power-on-resume state */
|
|
TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02, /* Resume powered on */
|
|
TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03, /* Resume powered off */
|
|
TP_ACPI_BLTH_SAVE_STATE = 0x05, /* Save state for S4/S5 */
|
|
};
|
|
|
|
#define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw"
|
|
|
|
static int bluetooth_get_status(void)
|
|
{
|
|
int status;
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_bluetoothemul)
|
|
return (tpacpi_bluetooth_emulstate) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
#endif
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
|
|
return -EIO;
|
|
|
|
return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
}
|
|
|
|
static int bluetooth_set_status(enum tpacpi_rfkill_state state)
|
|
{
|
|
int status;
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
"will attempt to %s bluetooth\n",
|
|
(state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable");
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_bluetoothemul) {
|
|
tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
if (state == TPACPI_RFK_RADIO_ON)
|
|
status = TP_ACPI_BLUETOOTH_RADIOSSW
|
|
| TP_ACPI_BLUETOOTH_RESUMECTRL;
|
|
else
|
|
status = 0;
|
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* sysfs bluetooth enable ---------------------------------------------- */
|
|
static ssize_t bluetooth_enable_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID,
|
|
attr, buf);
|
|
}
|
|
|
|
static ssize_t bluetooth_enable_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID,
|
|
attr, buf, count);
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(bluetooth_enable);
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static struct attribute *bluetooth_attributes[] = {
|
|
&dev_attr_bluetooth_enable.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group bluetooth_attr_group = {
|
|
.attrs = bluetooth_attributes,
|
|
};
|
|
|
|
static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = {
|
|
.get_status = bluetooth_get_status,
|
|
.set_status = bluetooth_set_status,
|
|
};
|
|
|
|
static void bluetooth_shutdown(void)
|
|
{
|
|
/* Order firmware to save current state to NVRAM */
|
|
if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
|
|
TP_ACPI_BLTH_SAVE_STATE))
|
|
pr_notice("failed to save bluetooth state to NVRAM\n");
|
|
else
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
"bluetooth state saved to NVRAM\n");
|
|
}
|
|
|
|
static void bluetooth_exit(void)
|
|
{
|
|
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
|
|
&bluetooth_attr_group);
|
|
|
|
tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID);
|
|
|
|
bluetooth_shutdown();
|
|
}
|
|
|
|
static const struct dmi_system_id bt_fwbug_list[] __initconst = {
|
|
{
|
|
.ident = "ThinkPad E485",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "20KU"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "ThinkPad E585",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "20KV"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "ThinkPad A285 - 20MW",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "20MW"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "ThinkPad A285 - 20MX",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "20MX"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "ThinkPad A485 - 20MU",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "20MU"),
|
|
},
|
|
},
|
|
{
|
|
.ident = "ThinkPad A485 - 20MV",
|
|
.matches = {
|
|
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
|
|
DMI_MATCH(DMI_BOARD_NAME, "20MV"),
|
|
},
|
|
},
|
|
{}
|
|
};
|
|
|
|
static const struct pci_device_id fwbug_cards_ids[] __initconst = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) },
|
|
{}
|
|
};
|
|
|
|
|
|
static int __init have_bt_fwbug(void)
|
|
{
|
|
/*
|
|
* Some AMD based ThinkPads have a firmware bug that calling
|
|
* "GBDC" will cause bluetooth on Intel wireless cards blocked
|
|
*/
|
|
if (dmi_check_system(bt_fwbug_list) && pci_dev_present(fwbug_cards_ids)) {
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
FW_BUG "disable bluetooth subdriver for Intel cards\n");
|
|
return 1;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
static int __init bluetooth_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int res;
|
|
int status = 0;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"initializing bluetooth subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
|
|
|
/* bluetooth not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
|
|
G4x, R30, R31, R40e, R50e, T20-22, X20-21 */
|
|
tp_features.bluetooth = !have_bt_fwbug() && hkey_handle &&
|
|
acpi_evalf(hkey_handle, &status, "GBDC", "qd");
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"bluetooth is %s, status 0x%02x\n",
|
|
str_supported(tp_features.bluetooth),
|
|
status);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_bluetoothemul) {
|
|
tp_features.bluetooth = 1;
|
|
pr_info("bluetooth switch emulation enabled\n");
|
|
} else
|
|
#endif
|
|
if (tp_features.bluetooth &&
|
|
!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
|
|
/* no bluetooth hardware present in system */
|
|
tp_features.bluetooth = 0;
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"bluetooth hardware not installed\n");
|
|
}
|
|
|
|
if (!tp_features.bluetooth)
|
|
return 1;
|
|
|
|
res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID,
|
|
&bluetooth_tprfk_ops,
|
|
RFKILL_TYPE_BLUETOOTH,
|
|
TPACPI_RFK_BLUETOOTH_SW_NAME,
|
|
true);
|
|
if (res)
|
|
return res;
|
|
|
|
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
|
|
&bluetooth_attr_group);
|
|
if (res) {
|
|
tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID);
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* procfs -------------------------------------------------------------- */
|
|
static int bluetooth_read(struct seq_file *m)
|
|
{
|
|
return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m);
|
|
}
|
|
|
|
static int bluetooth_write(char *buf)
|
|
{
|
|
return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf);
|
|
}
|
|
|
|
static struct ibm_struct bluetooth_driver_data = {
|
|
.name = "bluetooth",
|
|
.read = bluetooth_read,
|
|
.write = bluetooth_write,
|
|
.exit = bluetooth_exit,
|
|
.shutdown = bluetooth_shutdown,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Wan subdriver
|
|
*/
|
|
|
|
enum {
|
|
/* ACPI GWAN/SWAN bits */
|
|
TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */
|
|
TP_ACPI_WANCARD_RADIOSSW = 0x02, /* Wan radio enabled */
|
|
TP_ACPI_WANCARD_RESUMECTRL = 0x04, /* Wan state at resume:
|
|
0 = disable, 1 = enable */
|
|
};
|
|
|
|
#define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw"
|
|
|
|
static int wan_get_status(void)
|
|
{
|
|
int status;
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_wwanemul)
|
|
return (tpacpi_wwan_emulstate) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
#endif
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
|
|
return -EIO;
|
|
|
|
return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
}
|
|
|
|
static int wan_set_status(enum tpacpi_rfkill_state state)
|
|
{
|
|
int status;
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
"will attempt to %s wwan\n",
|
|
(state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable");
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_wwanemul) {
|
|
tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
if (state == TPACPI_RFK_RADIO_ON)
|
|
status = TP_ACPI_WANCARD_RADIOSSW
|
|
| TP_ACPI_WANCARD_RESUMECTRL;
|
|
else
|
|
status = 0;
|
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* sysfs wan enable ---------------------------------------------------- */
|
|
static ssize_t wan_enable_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID,
|
|
attr, buf);
|
|
}
|
|
|
|
static ssize_t wan_enable_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID,
|
|
attr, buf, count);
|
|
}
|
|
|
|
static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO,
|
|
wan_enable_show, wan_enable_store);
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static struct attribute *wan_attributes[] = {
|
|
&dev_attr_wwan_enable.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group wan_attr_group = {
|
|
.attrs = wan_attributes,
|
|
};
|
|
|
|
static const struct tpacpi_rfk_ops wan_tprfk_ops = {
|
|
.get_status = wan_get_status,
|
|
.set_status = wan_set_status,
|
|
};
|
|
|
|
static void wan_shutdown(void)
|
|
{
|
|
/* Order firmware to save current state to NVRAM */
|
|
if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd",
|
|
TP_ACPI_WGSV_SAVE_STATE))
|
|
pr_notice("failed to save WWAN state to NVRAM\n");
|
|
else
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
"WWAN state saved to NVRAM\n");
|
|
}
|
|
|
|
static void wan_exit(void)
|
|
{
|
|
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
|
|
&wan_attr_group);
|
|
|
|
tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID);
|
|
|
|
wan_shutdown();
|
|
}
|
|
|
|
static int __init wan_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int res;
|
|
int status = 0;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"initializing wan subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
|
|
|
tp_features.wan = hkey_handle &&
|
|
acpi_evalf(hkey_handle, &status, "GWAN", "qd");
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"wan is %s, status 0x%02x\n",
|
|
str_supported(tp_features.wan),
|
|
status);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_wwanemul) {
|
|
tp_features.wan = 1;
|
|
pr_info("wwan switch emulation enabled\n");
|
|
} else
|
|
#endif
|
|
if (tp_features.wan &&
|
|
!(status & TP_ACPI_WANCARD_HWPRESENT)) {
|
|
/* no wan hardware present in system */
|
|
tp_features.wan = 0;
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"wan hardware not installed\n");
|
|
}
|
|
|
|
if (!tp_features.wan)
|
|
return 1;
|
|
|
|
res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID,
|
|
&wan_tprfk_ops,
|
|
RFKILL_TYPE_WWAN,
|
|
TPACPI_RFK_WWAN_SW_NAME,
|
|
true);
|
|
if (res)
|
|
return res;
|
|
|
|
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
|
|
&wan_attr_group);
|
|
|
|
if (res) {
|
|
tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID);
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* procfs -------------------------------------------------------------- */
|
|
static int wan_read(struct seq_file *m)
|
|
{
|
|
return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m);
|
|
}
|
|
|
|
static int wan_write(char *buf)
|
|
{
|
|
return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf);
|
|
}
|
|
|
|
static struct ibm_struct wan_driver_data = {
|
|
.name = "wan",
|
|
.read = wan_read,
|
|
.write = wan_write,
|
|
.exit = wan_exit,
|
|
.shutdown = wan_shutdown,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* UWB subdriver
|
|
*/
|
|
|
|
enum {
|
|
/* ACPI GUWB/SUWB bits */
|
|
TP_ACPI_UWB_HWPRESENT = 0x01, /* UWB hw available */
|
|
TP_ACPI_UWB_RADIOSSW = 0x02, /* UWB radio enabled */
|
|
};
|
|
|
|
#define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw"
|
|
|
|
static int uwb_get_status(void)
|
|
{
|
|
int status;
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_uwbemul)
|
|
return (tpacpi_uwb_emulstate) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
#endif
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "GUWB", "d"))
|
|
return -EIO;
|
|
|
|
return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ?
|
|
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
|
|
}
|
|
|
|
static int uwb_set_status(enum tpacpi_rfkill_state state)
|
|
{
|
|
int status;
|
|
|
|
vdbg_printk(TPACPI_DBG_RFKILL,
|
|
"will attempt to %s UWB\n",
|
|
(state == TPACPI_RFK_RADIO_ON) ? "enable" : "disable");
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_uwbemul) {
|
|
tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
if (state == TPACPI_RFK_RADIO_ON)
|
|
status = TP_ACPI_UWB_RADIOSSW;
|
|
else
|
|
status = 0;
|
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static const struct tpacpi_rfk_ops uwb_tprfk_ops = {
|
|
.get_status = uwb_get_status,
|
|
.set_status = uwb_set_status,
|
|
};
|
|
|
|
static void uwb_exit(void)
|
|
{
|
|
tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID);
|
|
}
|
|
|
|
static int __init uwb_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int res;
|
|
int status = 0;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"initializing uwb subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
|
|
|
tp_features.uwb = hkey_handle &&
|
|
acpi_evalf(hkey_handle, &status, "GUWB", "qd");
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
|
|
"uwb is %s, status 0x%02x\n",
|
|
str_supported(tp_features.uwb),
|
|
status);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
if (dbg_uwbemul) {
|
|
tp_features.uwb = 1;
|
|
pr_info("uwb switch emulation enabled\n");
|
|
} else
|
|
#endif
|
|
if (tp_features.uwb &&
|
|
!(status & TP_ACPI_UWB_HWPRESENT)) {
|
|
/* no uwb hardware present in system */
|
|
tp_features.uwb = 0;
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"uwb hardware not installed\n");
|
|
}
|
|
|
|
if (!tp_features.uwb)
|
|
return 1;
|
|
|
|
res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID,
|
|
&uwb_tprfk_ops,
|
|
RFKILL_TYPE_UWB,
|
|
TPACPI_RFK_UWB_SW_NAME,
|
|
false);
|
|
return res;
|
|
}
|
|
|
|
static struct ibm_struct uwb_driver_data = {
|
|
.name = "uwb",
|
|
.exit = uwb_exit,
|
|
.flags.experimental = 1,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Video subdriver
|
|
*/
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
|
|
|
|
enum video_access_mode {
|
|
TPACPI_VIDEO_NONE = 0,
|
|
TPACPI_VIDEO_570, /* 570 */
|
|
TPACPI_VIDEO_770, /* 600e/x, 770e, 770x */
|
|
TPACPI_VIDEO_NEW, /* all others */
|
|
};
|
|
|
|
enum { /* video status flags, based on VIDEO_570 */
|
|
TP_ACPI_VIDEO_S_LCD = 0x01, /* LCD output enabled */
|
|
TP_ACPI_VIDEO_S_CRT = 0x02, /* CRT output enabled */
|
|
TP_ACPI_VIDEO_S_DVI = 0x08, /* DVI output enabled */
|
|
};
|
|
|
|
enum { /* TPACPI_VIDEO_570 constants */
|
|
TP_ACPI_VIDEO_570_PHSCMD = 0x87, /* unknown magic constant :( */
|
|
TP_ACPI_VIDEO_570_PHSMASK = 0x03, /* PHS bits that map to
|
|
* video_status_flags */
|
|
TP_ACPI_VIDEO_570_PHS2CMD = 0x8b, /* unknown magic constant :( */
|
|
TP_ACPI_VIDEO_570_PHS2SET = 0x80, /* unknown magic constant :( */
|
|
};
|
|
|
|
static enum video_access_mode video_supported;
|
|
static int video_orig_autosw;
|
|
|
|
static int video_autosw_get(void);
|
|
static int video_autosw_set(int enable);
|
|
|
|
TPACPI_HANDLE(vid, root,
|
|
"\\_SB.PCI.AGP.VGA", /* 570 */
|
|
"\\_SB.PCI0.AGP0.VID0", /* 600e/x, 770x */
|
|
"\\_SB.PCI0.VID0", /* 770e */
|
|
"\\_SB.PCI0.VID", /* A21e, G4x, R50e, X30, X40 */
|
|
"\\_SB.PCI0.AGP.VGA", /* X100e and a few others */
|
|
"\\_SB.PCI0.AGP.VID", /* all others */
|
|
); /* R30, R31 */
|
|
|
|
TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID"); /* G41 */
|
|
|
|
static int __init video_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int ivga;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(vid);
|
|
if (tpacpi_is_ibm())
|
|
TPACPI_ACPIHANDLE_INIT(vid2);
|
|
|
|
if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
|
|
/* G41, assume IVGA doesn't change */
|
|
vid_handle = vid2_handle;
|
|
|
|
if (!vid_handle)
|
|
/* video switching not supported on R30, R31 */
|
|
video_supported = TPACPI_VIDEO_NONE;
|
|
else if (tpacpi_is_ibm() &&
|
|
acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
|
|
/* 570 */
|
|
video_supported = TPACPI_VIDEO_570;
|
|
else if (tpacpi_is_ibm() &&
|
|
acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
|
|
/* 600e/x, 770e, 770x */
|
|
video_supported = TPACPI_VIDEO_770;
|
|
else
|
|
/* all others */
|
|
video_supported = TPACPI_VIDEO_NEW;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n",
|
|
str_supported(video_supported != TPACPI_VIDEO_NONE),
|
|
video_supported);
|
|
|
|
return (video_supported != TPACPI_VIDEO_NONE) ? 0 : 1;
|
|
}
|
|
|
|
static void video_exit(void)
|
|
{
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
"restoring original video autoswitch mode\n");
|
|
if (video_autosw_set(video_orig_autosw))
|
|
pr_err("error while trying to restore original video autoswitch mode\n");
|
|
}
|
|
|
|
static int video_outputsw_get(void)
|
|
{
|
|
int status = 0;
|
|
int i;
|
|
|
|
switch (video_supported) {
|
|
case TPACPI_VIDEO_570:
|
|
if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd",
|
|
TP_ACPI_VIDEO_570_PHSCMD))
|
|
return -EIO;
|
|
status = i & TP_ACPI_VIDEO_570_PHSMASK;
|
|
break;
|
|
case TPACPI_VIDEO_770:
|
|
if (!acpi_evalf(NULL, &i, "\\VCDL", "d"))
|
|
return -EIO;
|
|
if (i)
|
|
status |= TP_ACPI_VIDEO_S_LCD;
|
|
if (!acpi_evalf(NULL, &i, "\\VCDC", "d"))
|
|
return -EIO;
|
|
if (i)
|
|
status |= TP_ACPI_VIDEO_S_CRT;
|
|
break;
|
|
case TPACPI_VIDEO_NEW:
|
|
if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) ||
|
|
!acpi_evalf(NULL, &i, "\\VCDC", "d"))
|
|
return -EIO;
|
|
if (i)
|
|
status |= TP_ACPI_VIDEO_S_CRT;
|
|
|
|
if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) ||
|
|
!acpi_evalf(NULL, &i, "\\VCDL", "d"))
|
|
return -EIO;
|
|
if (i)
|
|
status |= TP_ACPI_VIDEO_S_LCD;
|
|
if (!acpi_evalf(NULL, &i, "\\VCDD", "d"))
|
|
return -EIO;
|
|
if (i)
|
|
status |= TP_ACPI_VIDEO_S_DVI;
|
|
break;
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
static int video_outputsw_set(int status)
|
|
{
|
|
int autosw;
|
|
int res = 0;
|
|
|
|
switch (video_supported) {
|
|
case TPACPI_VIDEO_570:
|
|
res = acpi_evalf(NULL, NULL,
|
|
"\\_SB.PHS2", "vdd",
|
|
TP_ACPI_VIDEO_570_PHS2CMD,
|
|
status | TP_ACPI_VIDEO_570_PHS2SET);
|
|
break;
|
|
case TPACPI_VIDEO_770:
|
|
autosw = video_autosw_get();
|
|
if (autosw < 0)
|
|
return autosw;
|
|
|
|
res = video_autosw_set(1);
|
|
if (res)
|
|
return res;
|
|
res = acpi_evalf(vid_handle, NULL,
|
|
"ASWT", "vdd", status * 0x100, 0);
|
|
if (!autosw && video_autosw_set(autosw)) {
|
|
pr_err("video auto-switch left enabled due to error\n");
|
|
return -EIO;
|
|
}
|
|
break;
|
|
case TPACPI_VIDEO_NEW:
|
|
res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) &&
|
|
acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1);
|
|
break;
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
|
|
return (res) ? 0 : -EIO;
|
|
}
|
|
|
|
static int video_autosw_get(void)
|
|
{
|
|
int autosw = 0;
|
|
|
|
switch (video_supported) {
|
|
case TPACPI_VIDEO_570:
|
|
if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d"))
|
|
return -EIO;
|
|
break;
|
|
case TPACPI_VIDEO_770:
|
|
case TPACPI_VIDEO_NEW:
|
|
if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d"))
|
|
return -EIO;
|
|
break;
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
|
|
return autosw & 1;
|
|
}
|
|
|
|
static int video_autosw_set(int enable)
|
|
{
|
|
if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0))
|
|
return -EIO;
|
|
return 0;
|
|
}
|
|
|
|
static int video_outputsw_cycle(void)
|
|
{
|
|
int autosw = video_autosw_get();
|
|
int res;
|
|
|
|
if (autosw < 0)
|
|
return autosw;
|
|
|
|
switch (video_supported) {
|
|
case TPACPI_VIDEO_570:
|
|
res = video_autosw_set(1);
|
|
if (res)
|
|
return res;
|
|
res = acpi_evalf(ec_handle, NULL, "_Q16", "v");
|
|
break;
|
|
case TPACPI_VIDEO_770:
|
|
case TPACPI_VIDEO_NEW:
|
|
res = video_autosw_set(1);
|
|
if (res)
|
|
return res;
|
|
res = acpi_evalf(vid_handle, NULL, "VSWT", "v");
|
|
break;
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
if (!autosw && video_autosw_set(autosw)) {
|
|
pr_err("video auto-switch left enabled due to error\n");
|
|
return -EIO;
|
|
}
|
|
|
|
return (res) ? 0 : -EIO;
|
|
}
|
|
|
|
static int video_expand_toggle(void)
|
|
{
|
|
switch (video_supported) {
|
|
case TPACPI_VIDEO_570:
|
|
return acpi_evalf(ec_handle, NULL, "_Q17", "v") ?
|
|
0 : -EIO;
|
|
case TPACPI_VIDEO_770:
|
|
return acpi_evalf(vid_handle, NULL, "VEXP", "v") ?
|
|
0 : -EIO;
|
|
case TPACPI_VIDEO_NEW:
|
|
return acpi_evalf(NULL, NULL, "\\VEXP", "v") ?
|
|
0 : -EIO;
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
/* not reached */
|
|
}
|
|
|
|
static int video_read(struct seq_file *m)
|
|
{
|
|
int status, autosw;
|
|
|
|
if (video_supported == TPACPI_VIDEO_NONE) {
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
return 0;
|
|
}
|
|
|
|
/* Even reads can crash X.org, so... */
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
|
|
status = video_outputsw_get();
|
|
if (status < 0)
|
|
return status;
|
|
|
|
autosw = video_autosw_get();
|
|
if (autosw < 0)
|
|
return autosw;
|
|
|
|
seq_printf(m, "status:\t\tsupported\n");
|
|
seq_printf(m, "lcd:\t\t%s\n", enabled(status, 0));
|
|
seq_printf(m, "crt:\t\t%s\n", enabled(status, 1));
|
|
if (video_supported == TPACPI_VIDEO_NEW)
|
|
seq_printf(m, "dvi:\t\t%s\n", enabled(status, 3));
|
|
seq_printf(m, "auto:\t\t%s\n", enabled(autosw, 0));
|
|
seq_printf(m, "commands:\tlcd_enable, lcd_disable\n");
|
|
seq_printf(m, "commands:\tcrt_enable, crt_disable\n");
|
|
if (video_supported == TPACPI_VIDEO_NEW)
|
|
seq_printf(m, "commands:\tdvi_enable, dvi_disable\n");
|
|
seq_printf(m, "commands:\tauto_enable, auto_disable\n");
|
|
seq_printf(m, "commands:\tvideo_switch, expand_toggle\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int video_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int enable, disable, status;
|
|
int res;
|
|
|
|
if (video_supported == TPACPI_VIDEO_NONE)
|
|
return -ENODEV;
|
|
|
|
/* Even reads can crash X.org, let alone writes... */
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EPERM;
|
|
|
|
enable = 0;
|
|
disable = 0;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (strlencmp(cmd, "lcd_enable") == 0) {
|
|
enable |= TP_ACPI_VIDEO_S_LCD;
|
|
} else if (strlencmp(cmd, "lcd_disable") == 0) {
|
|
disable |= TP_ACPI_VIDEO_S_LCD;
|
|
} else if (strlencmp(cmd, "crt_enable") == 0) {
|
|
enable |= TP_ACPI_VIDEO_S_CRT;
|
|
} else if (strlencmp(cmd, "crt_disable") == 0) {
|
|
disable |= TP_ACPI_VIDEO_S_CRT;
|
|
} else if (video_supported == TPACPI_VIDEO_NEW &&
|
|
strlencmp(cmd, "dvi_enable") == 0) {
|
|
enable |= TP_ACPI_VIDEO_S_DVI;
|
|
} else if (video_supported == TPACPI_VIDEO_NEW &&
|
|
strlencmp(cmd, "dvi_disable") == 0) {
|
|
disable |= TP_ACPI_VIDEO_S_DVI;
|
|
} else if (strlencmp(cmd, "auto_enable") == 0) {
|
|
res = video_autosw_set(1);
|
|
if (res)
|
|
return res;
|
|
} else if (strlencmp(cmd, "auto_disable") == 0) {
|
|
res = video_autosw_set(0);
|
|
if (res)
|
|
return res;
|
|
} else if (strlencmp(cmd, "video_switch") == 0) {
|
|
res = video_outputsw_cycle();
|
|
if (res)
|
|
return res;
|
|
} else if (strlencmp(cmd, "expand_toggle") == 0) {
|
|
res = video_expand_toggle();
|
|
if (res)
|
|
return res;
|
|
} else
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (enable || disable) {
|
|
status = video_outputsw_get();
|
|
if (status < 0)
|
|
return status;
|
|
res = video_outputsw_set((status & ~disable) | enable);
|
|
if (res)
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ibm_struct video_driver_data = {
|
|
.name = "video",
|
|
.read = video_read,
|
|
.write = video_write,
|
|
.exit = video_exit,
|
|
};
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_VIDEO */
|
|
|
|
/*************************************************************************
|
|
* Keyboard backlight subdriver
|
|
*/
|
|
|
|
static enum led_brightness kbdlight_brightness;
|
|
static DEFINE_MUTEX(kbdlight_mutex);
|
|
|
|
static int kbdlight_set_level(int level)
|
|
{
|
|
int ret = 0;
|
|
|
|
if (!hkey_handle)
|
|
return -ENXIO;
|
|
|
|
mutex_lock(&kbdlight_mutex);
|
|
|
|
if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level))
|
|
ret = -EIO;
|
|
else
|
|
kbdlight_brightness = level;
|
|
|
|
mutex_unlock(&kbdlight_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int kbdlight_get_level(void)
|
|
{
|
|
int status = 0;
|
|
|
|
if (!hkey_handle)
|
|
return -ENXIO;
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0))
|
|
return -EIO;
|
|
|
|
if (status < 0)
|
|
return status;
|
|
|
|
return status & 0x3;
|
|
}
|
|
|
|
static bool kbdlight_is_supported(void)
|
|
{
|
|
int status = 0;
|
|
|
|
if (!hkey_handle)
|
|
return false;
|
|
|
|
if (!acpi_has_method(hkey_handle, "MLCG")) {
|
|
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n");
|
|
return false;
|
|
}
|
|
|
|
if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) {
|
|
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n");
|
|
return false;
|
|
}
|
|
|
|
if (status < 0) {
|
|
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status);
|
|
return false;
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status);
|
|
/*
|
|
* Guessed test for keyboard backlight:
|
|
*
|
|
* Machines with backlight keyboard return:
|
|
* b010100000010000000XX - ThinkPad X1 Carbon 3rd
|
|
* b110100010010000000XX - ThinkPad x230
|
|
* b010100000010000000XX - ThinkPad x240
|
|
* b010100000010000000XX - ThinkPad W541
|
|
* (XX is current backlight level)
|
|
*
|
|
* Machines without backlight keyboard return:
|
|
* b10100001000000000000 - ThinkPad x230
|
|
* b10110001000000000000 - ThinkPad E430
|
|
* b00000000000000000000 - ThinkPad E450
|
|
*
|
|
* Candidate BITs for detection test (XOR):
|
|
* b01000000001000000000
|
|
* ^
|
|
*/
|
|
return status & BIT(9);
|
|
}
|
|
|
|
static int kbdlight_sysfs_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
return kbdlight_set_level(brightness);
|
|
}
|
|
|
|
static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev)
|
|
{
|
|
int level;
|
|
|
|
level = kbdlight_get_level();
|
|
if (level < 0)
|
|
return 0;
|
|
|
|
return level;
|
|
}
|
|
|
|
static struct tpacpi_led_classdev tpacpi_led_kbdlight = {
|
|
.led_classdev = {
|
|
.name = "tpacpi::kbd_backlight",
|
|
.max_brightness = 2,
|
|
.flags = LED_BRIGHT_HW_CHANGED,
|
|
.brightness_set_blocking = &kbdlight_sysfs_set,
|
|
.brightness_get = &kbdlight_sysfs_get,
|
|
}
|
|
};
|
|
|
|
static int __init kbdlight_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int rc;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(hkey);
|
|
|
|
if (!kbdlight_is_supported()) {
|
|
tp_features.kbdlight = 0;
|
|
vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n");
|
|
return 1;
|
|
}
|
|
|
|
kbdlight_brightness = kbdlight_sysfs_get(NULL);
|
|
tp_features.kbdlight = 1;
|
|
|
|
rc = led_classdev_register(&tpacpi_pdev->dev,
|
|
&tpacpi_led_kbdlight.led_classdev);
|
|
if (rc < 0) {
|
|
tp_features.kbdlight = 0;
|
|
return rc;
|
|
}
|
|
|
|
tpacpi_hotkey_driver_mask_set(hotkey_driver_mask |
|
|
TP_ACPI_HKEY_KBD_LIGHT_MASK);
|
|
return 0;
|
|
}
|
|
|
|
static void kbdlight_exit(void)
|
|
{
|
|
if (tp_features.kbdlight)
|
|
led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev);
|
|
}
|
|
|
|
static int kbdlight_set_level_and_update(int level)
|
|
{
|
|
int ret;
|
|
struct led_classdev *led_cdev;
|
|
|
|
ret = kbdlight_set_level(level);
|
|
led_cdev = &tpacpi_led_kbdlight.led_classdev;
|
|
|
|
if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED))
|
|
led_cdev->brightness = level;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int kbdlight_read(struct seq_file *m)
|
|
{
|
|
int level;
|
|
|
|
if (!tp_features.kbdlight) {
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
} else {
|
|
level = kbdlight_get_level();
|
|
if (level < 0)
|
|
seq_printf(m, "status:\t\terror %d\n", level);
|
|
else
|
|
seq_printf(m, "status:\t\t%d\n", level);
|
|
seq_printf(m, "commands:\t0, 1, 2\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int kbdlight_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int level = -1;
|
|
|
|
if (!tp_features.kbdlight)
|
|
return -ENODEV;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (strlencmp(cmd, "0") == 0)
|
|
level = 0;
|
|
else if (strlencmp(cmd, "1") == 0)
|
|
level = 1;
|
|
else if (strlencmp(cmd, "2") == 0)
|
|
level = 2;
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (level == -1)
|
|
return -EINVAL;
|
|
|
|
return kbdlight_set_level_and_update(level);
|
|
}
|
|
|
|
static void kbdlight_suspend(void)
|
|
{
|
|
struct led_classdev *led_cdev;
|
|
|
|
if (!tp_features.kbdlight)
|
|
return;
|
|
|
|
led_cdev = &tpacpi_led_kbdlight.led_classdev;
|
|
led_update_brightness(led_cdev);
|
|
led_classdev_suspend(led_cdev);
|
|
}
|
|
|
|
static void kbdlight_resume(void)
|
|
{
|
|
if (!tp_features.kbdlight)
|
|
return;
|
|
|
|
led_classdev_resume(&tpacpi_led_kbdlight.led_classdev);
|
|
}
|
|
|
|
static struct ibm_struct kbdlight_driver_data = {
|
|
.name = "kbdlight",
|
|
.read = kbdlight_read,
|
|
.write = kbdlight_write,
|
|
.suspend = kbdlight_suspend,
|
|
.resume = kbdlight_resume,
|
|
.exit = kbdlight_exit,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Light (thinklight) subdriver
|
|
*/
|
|
|
|
TPACPI_HANDLE(lght, root, "\\LGHT"); /* A21e, A2xm/p, T20-22, X20-21 */
|
|
TPACPI_HANDLE(ledb, ec, "LEDB"); /* G4x */
|
|
|
|
static int light_get_status(void)
|
|
{
|
|
int status = 0;
|
|
|
|
if (tp_features.light_status) {
|
|
if (!acpi_evalf(ec_handle, &status, "KBLT", "d"))
|
|
return -EIO;
|
|
return (!!status);
|
|
}
|
|
|
|
return -ENXIO;
|
|
}
|
|
|
|
static int light_set_status(int status)
|
|
{
|
|
int rc;
|
|
|
|
if (tp_features.light) {
|
|
if (cmos_handle) {
|
|
rc = acpi_evalf(cmos_handle, NULL, NULL, "vd",
|
|
(status) ?
|
|
TP_CMOS_THINKLIGHT_ON :
|
|
TP_CMOS_THINKLIGHT_OFF);
|
|
} else {
|
|
rc = acpi_evalf(lght_handle, NULL, NULL, "vd",
|
|
(status) ? 1 : 0);
|
|
}
|
|
return (rc) ? 0 : -EIO;
|
|
}
|
|
|
|
return -ENXIO;
|
|
}
|
|
|
|
static int light_sysfs_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
return light_set_status((brightness != LED_OFF) ?
|
|
TPACPI_LED_ON : TPACPI_LED_OFF);
|
|
}
|
|
|
|
static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev)
|
|
{
|
|
return (light_get_status() == 1) ? LED_FULL : LED_OFF;
|
|
}
|
|
|
|
static struct tpacpi_led_classdev tpacpi_led_thinklight = {
|
|
.led_classdev = {
|
|
.name = "tpacpi::thinklight",
|
|
.brightness_set_blocking = &light_sysfs_set,
|
|
.brightness_get = &light_sysfs_get,
|
|
}
|
|
};
|
|
|
|
static int __init light_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int rc;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
|
|
|
|
if (tpacpi_is_ibm()) {
|
|
TPACPI_ACPIHANDLE_INIT(ledb);
|
|
TPACPI_ACPIHANDLE_INIT(lght);
|
|
}
|
|
TPACPI_ACPIHANDLE_INIT(cmos);
|
|
|
|
/* light not supported on 570, 600e/x, 770e, 770x, G4x, R30, R31 */
|
|
tp_features.light = (cmos_handle || lght_handle) && !ledb_handle;
|
|
|
|
if (tp_features.light)
|
|
/* light status not supported on
|
|
570, 600e/x, 770e, 770x, G4x, R30, R31, R32, X20 */
|
|
tp_features.light_status =
|
|
acpi_evalf(ec_handle, NULL, "KBLT", "qv");
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n",
|
|
str_supported(tp_features.light),
|
|
str_supported(tp_features.light_status));
|
|
|
|
if (!tp_features.light)
|
|
return 1;
|
|
|
|
rc = led_classdev_register(&tpacpi_pdev->dev,
|
|
&tpacpi_led_thinklight.led_classdev);
|
|
|
|
if (rc < 0) {
|
|
tp_features.light = 0;
|
|
tp_features.light_status = 0;
|
|
} else {
|
|
rc = 0;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void light_exit(void)
|
|
{
|
|
led_classdev_unregister(&tpacpi_led_thinklight.led_classdev);
|
|
}
|
|
|
|
static int light_read(struct seq_file *m)
|
|
{
|
|
int status;
|
|
|
|
if (!tp_features.light) {
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
} else if (!tp_features.light_status) {
|
|
seq_printf(m, "status:\t\tunknown\n");
|
|
seq_printf(m, "commands:\ton, off\n");
|
|
} else {
|
|
status = light_get_status();
|
|
if (status < 0)
|
|
return status;
|
|
seq_printf(m, "status:\t\t%s\n", onoff(status, 0));
|
|
seq_printf(m, "commands:\ton, off\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int light_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int newstatus = 0;
|
|
|
|
if (!tp_features.light)
|
|
return -ENODEV;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (strlencmp(cmd, "on") == 0) {
|
|
newstatus = 1;
|
|
} else if (strlencmp(cmd, "off") == 0) {
|
|
newstatus = 0;
|
|
} else
|
|
return -EINVAL;
|
|
}
|
|
|
|
return light_set_status(newstatus);
|
|
}
|
|
|
|
static struct ibm_struct light_driver_data = {
|
|
.name = "light",
|
|
.read = light_read,
|
|
.write = light_write,
|
|
.exit = light_exit,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* CMOS subdriver
|
|
*/
|
|
|
|
/* sysfs cmos_command -------------------------------------------------- */
|
|
static ssize_t cmos_command_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long cmos_cmd;
|
|
int res;
|
|
|
|
if (parse_strtoul(buf, 21, &cmos_cmd))
|
|
return -EINVAL;
|
|
|
|
res = issue_thinkpad_cmos_command(cmos_cmd);
|
|
return (res) ? res : count;
|
|
}
|
|
|
|
static DEVICE_ATTR_WO(cmos_command);
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static int __init cmos_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int res;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
"initializing cmos commands subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(cmos);
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n",
|
|
str_supported(cmos_handle != NULL));
|
|
|
|
res = device_create_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
|
|
if (res)
|
|
return res;
|
|
|
|
return (cmos_handle) ? 0 : 1;
|
|
}
|
|
|
|
static void cmos_exit(void)
|
|
{
|
|
device_remove_file(&tpacpi_pdev->dev, &dev_attr_cmos_command);
|
|
}
|
|
|
|
static int cmos_read(struct seq_file *m)
|
|
{
|
|
/* cmos not supported on 570, 600e/x, 770e, 770x, A21e, A2xm/p,
|
|
R30, R31, T20-22, X20-21 */
|
|
if (!cmos_handle)
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
else {
|
|
seq_printf(m, "status:\t\tsupported\n");
|
|
seq_printf(m, "commands:\t<cmd> (<cmd> is 0-21)\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int cmos_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int cmos_cmd, res;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (sscanf(cmd, "%u", &cmos_cmd) == 1 &&
|
|
cmos_cmd >= 0 && cmos_cmd <= 21) {
|
|
/* cmos_cmd set */
|
|
} else
|
|
return -EINVAL;
|
|
|
|
res = issue_thinkpad_cmos_command(cmos_cmd);
|
|
if (res)
|
|
return res;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ibm_struct cmos_driver_data = {
|
|
.name = "cmos",
|
|
.read = cmos_read,
|
|
.write = cmos_write,
|
|
.exit = cmos_exit,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* LED subdriver
|
|
*/
|
|
|
|
enum led_access_mode {
|
|
TPACPI_LED_NONE = 0,
|
|
TPACPI_LED_570, /* 570 */
|
|
TPACPI_LED_OLD, /* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
|
|
TPACPI_LED_NEW, /* all others */
|
|
};
|
|
|
|
enum { /* For TPACPI_LED_OLD */
|
|
TPACPI_LED_EC_HLCL = 0x0c, /* EC reg to get led to power on */
|
|
TPACPI_LED_EC_HLBL = 0x0d, /* EC reg to blink a lit led */
|
|
TPACPI_LED_EC_HLMS = 0x0e, /* EC reg to select led to command */
|
|
};
|
|
|
|
static enum led_access_mode led_supported;
|
|
|
|
static acpi_handle led_handle;
|
|
|
|
#define TPACPI_LED_NUMLEDS 16
|
|
static struct tpacpi_led_classdev *tpacpi_leds;
|
|
static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS];
|
|
static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = {
|
|
/* there's a limit of 19 chars + NULL before 2.6.26 */
|
|
"tpacpi::power",
|
|
"tpacpi:orange:batt",
|
|
"tpacpi:green:batt",
|
|
"tpacpi::dock_active",
|
|
"tpacpi::bay_active",
|
|
"tpacpi::dock_batt",
|
|
"tpacpi::unknown_led",
|
|
"tpacpi::standby",
|
|
"tpacpi::dock_status1",
|
|
"tpacpi::dock_status2",
|
|
"tpacpi::unknown_led2",
|
|
"tpacpi::unknown_led3",
|
|
"tpacpi::thinkvantage",
|
|
};
|
|
#define TPACPI_SAFE_LEDS 0x1081U
|
|
|
|
static inline bool tpacpi_is_led_restricted(const unsigned int led)
|
|
{
|
|
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
|
|
return false;
|
|
#else
|
|
return (1U & (TPACPI_SAFE_LEDS >> led)) == 0;
|
|
#endif
|
|
}
|
|
|
|
static int led_get_status(const unsigned int led)
|
|
{
|
|
int status;
|
|
enum led_status_t led_s;
|
|
|
|
switch (led_supported) {
|
|
case TPACPI_LED_570:
|
|
if (!acpi_evalf(ec_handle,
|
|
&status, "GLED", "dd", 1 << led))
|
|
return -EIO;
|
|
led_s = (status == 0) ?
|
|
TPACPI_LED_OFF :
|
|
((status == 1) ?
|
|
TPACPI_LED_ON :
|
|
TPACPI_LED_BLINK);
|
|
tpacpi_led_state_cache[led] = led_s;
|
|
return led_s;
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
|
|
/* not reached */
|
|
}
|
|
|
|
static int led_set_status(const unsigned int led,
|
|
const enum led_status_t ledstatus)
|
|
{
|
|
/* off, on, blink. Index is led_status_t */
|
|
static const unsigned int led_sled_arg1[] = { 0, 1, 3 };
|
|
static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 };
|
|
|
|
int rc = 0;
|
|
|
|
switch (led_supported) {
|
|
case TPACPI_LED_570:
|
|
/* 570 */
|
|
if (unlikely(led > 7))
|
|
return -EINVAL;
|
|
if (unlikely(tpacpi_is_led_restricted(led)))
|
|
return -EPERM;
|
|
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
|
|
(1 << led), led_sled_arg1[ledstatus]))
|
|
return -EIO;
|
|
break;
|
|
case TPACPI_LED_OLD:
|
|
/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20 */
|
|
if (unlikely(led > 7))
|
|
return -EINVAL;
|
|
if (unlikely(tpacpi_is_led_restricted(led)))
|
|
return -EPERM;
|
|
rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led));
|
|
if (rc >= 0)
|
|
rc = ec_write(TPACPI_LED_EC_HLBL,
|
|
(ledstatus == TPACPI_LED_BLINK) << led);
|
|
if (rc >= 0)
|
|
rc = ec_write(TPACPI_LED_EC_HLCL,
|
|
(ledstatus != TPACPI_LED_OFF) << led);
|
|
break;
|
|
case TPACPI_LED_NEW:
|
|
/* all others */
|
|
if (unlikely(led >= TPACPI_LED_NUMLEDS))
|
|
return -EINVAL;
|
|
if (unlikely(tpacpi_is_led_restricted(led)))
|
|
return -EPERM;
|
|
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
|
|
led, led_led_arg1[ledstatus]))
|
|
return -EIO;
|
|
break;
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
|
|
if (!rc)
|
|
tpacpi_led_state_cache[led] = ledstatus;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int led_sysfs_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
struct tpacpi_led_classdev *data = container_of(led_cdev,
|
|
struct tpacpi_led_classdev, led_classdev);
|
|
enum led_status_t new_state;
|
|
|
|
if (brightness == LED_OFF)
|
|
new_state = TPACPI_LED_OFF;
|
|
else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK)
|
|
new_state = TPACPI_LED_ON;
|
|
else
|
|
new_state = TPACPI_LED_BLINK;
|
|
|
|
return led_set_status(data->led, new_state);
|
|
}
|
|
|
|
static int led_sysfs_blink_set(struct led_classdev *led_cdev,
|
|
unsigned long *delay_on, unsigned long *delay_off)
|
|
{
|
|
struct tpacpi_led_classdev *data = container_of(led_cdev,
|
|
struct tpacpi_led_classdev, led_classdev);
|
|
|
|
/* Can we choose the flash rate? */
|
|
if (*delay_on == 0 && *delay_off == 0) {
|
|
/* yes. set them to the hardware blink rate (1 Hz) */
|
|
*delay_on = 500; /* ms */
|
|
*delay_off = 500; /* ms */
|
|
} else if ((*delay_on != 500) || (*delay_off != 500))
|
|
return -EINVAL;
|
|
|
|
return led_set_status(data->led, TPACPI_LED_BLINK);
|
|
}
|
|
|
|
static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev)
|
|
{
|
|
int rc;
|
|
|
|
struct tpacpi_led_classdev *data = container_of(led_cdev,
|
|
struct tpacpi_led_classdev, led_classdev);
|
|
|
|
rc = led_get_status(data->led);
|
|
|
|
if (rc == TPACPI_LED_OFF || rc < 0)
|
|
rc = LED_OFF; /* no error handling in led class :( */
|
|
else
|
|
rc = LED_FULL;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void led_exit(void)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
|
|
if (tpacpi_leds[i].led_classdev.name)
|
|
led_classdev_unregister(&tpacpi_leds[i].led_classdev);
|
|
}
|
|
|
|
kfree(tpacpi_leds);
|
|
}
|
|
|
|
static int __init tpacpi_init_led(unsigned int led)
|
|
{
|
|
int rc;
|
|
|
|
tpacpi_leds[led].led = led;
|
|
|
|
/* LEDs with no name don't get registered */
|
|
if (!tpacpi_led_names[led])
|
|
return 0;
|
|
|
|
tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set;
|
|
tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set;
|
|
if (led_supported == TPACPI_LED_570)
|
|
tpacpi_leds[led].led_classdev.brightness_get =
|
|
&led_sysfs_get;
|
|
|
|
tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led];
|
|
|
|
rc = led_classdev_register(&tpacpi_pdev->dev,
|
|
&tpacpi_leds[led].led_classdev);
|
|
if (rc < 0)
|
|
tpacpi_leds[led].led_classdev.name = NULL;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static const struct tpacpi_quirk led_useful_qtable[] __initconst = {
|
|
TPACPI_Q_IBM('1', 'E', 0x009f), /* A30 */
|
|
TPACPI_Q_IBM('1', 'N', 0x009f), /* A31 */
|
|
TPACPI_Q_IBM('1', 'G', 0x009f), /* A31 */
|
|
|
|
TPACPI_Q_IBM('1', 'I', 0x0097), /* T30 */
|
|
TPACPI_Q_IBM('1', 'R', 0x0097), /* T40, T41, T42, R50, R51 */
|
|
TPACPI_Q_IBM('7', '0', 0x0097), /* T43, R52 */
|
|
TPACPI_Q_IBM('1', 'Y', 0x0097), /* T43 */
|
|
TPACPI_Q_IBM('1', 'W', 0x0097), /* R50e */
|
|
TPACPI_Q_IBM('1', 'V', 0x0097), /* R51 */
|
|
TPACPI_Q_IBM('7', '8', 0x0097), /* R51e */
|
|
TPACPI_Q_IBM('7', '6', 0x0097), /* R52 */
|
|
|
|
TPACPI_Q_IBM('1', 'K', 0x00bf), /* X30 */
|
|
TPACPI_Q_IBM('1', 'Q', 0x00bf), /* X31, X32 */
|
|
TPACPI_Q_IBM('1', 'U', 0x00bf), /* X40 */
|
|
TPACPI_Q_IBM('7', '4', 0x00bf), /* X41 */
|
|
TPACPI_Q_IBM('7', '5', 0x00bf), /* X41t */
|
|
|
|
TPACPI_Q_IBM('7', '9', 0x1f97), /* T60 (1) */
|
|
TPACPI_Q_IBM('7', '7', 0x1f97), /* Z60* (1) */
|
|
TPACPI_Q_IBM('7', 'F', 0x1f97), /* Z61* (1) */
|
|
TPACPI_Q_IBM('7', 'B', 0x1fb7), /* X60 (1) */
|
|
|
|
/* (1) - may have excess leds enabled on MSB */
|
|
|
|
/* Defaults (order matters, keep last, don't reorder!) */
|
|
{ /* Lenovo */
|
|
.vendor = PCI_VENDOR_ID_LENOVO,
|
|
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
|
|
.quirks = 0x1fffU,
|
|
},
|
|
{ /* IBM ThinkPads with no EC version string */
|
|
.vendor = PCI_VENDOR_ID_IBM,
|
|
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN,
|
|
.quirks = 0x00ffU,
|
|
},
|
|
{ /* IBM ThinkPads with EC version string */
|
|
.vendor = PCI_VENDOR_ID_IBM,
|
|
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
|
|
.quirks = 0x00bfU,
|
|
},
|
|
};
|
|
|
|
static enum led_access_mode __init led_init_detect_mode(void)
|
|
{
|
|
acpi_status status;
|
|
|
|
if (tpacpi_is_ibm()) {
|
|
/* 570 */
|
|
status = acpi_get_handle(ec_handle, "SLED", &led_handle);
|
|
if (ACPI_SUCCESS(status))
|
|
return TPACPI_LED_570;
|
|
|
|
/* 600e/x, 770e, 770x, A21e, A2xm/p, T20-22, X20-21 */
|
|
status = acpi_get_handle(ec_handle, "SYSL", &led_handle);
|
|
if (ACPI_SUCCESS(status))
|
|
return TPACPI_LED_OLD;
|
|
}
|
|
|
|
/* most others */
|
|
status = acpi_get_handle(ec_handle, "LED", &led_handle);
|
|
if (ACPI_SUCCESS(status))
|
|
return TPACPI_LED_NEW;
|
|
|
|
/* R30, R31, and unknown firmwares */
|
|
led_handle = NULL;
|
|
return TPACPI_LED_NONE;
|
|
}
|
|
|
|
static int __init led_init(struct ibm_init_struct *iibm)
|
|
{
|
|
unsigned int i;
|
|
int rc;
|
|
unsigned long useful_leds;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
|
|
|
|
led_supported = led_init_detect_mode();
|
|
|
|
if (led_supported != TPACPI_LED_NONE) {
|
|
useful_leds = tpacpi_check_quirks(led_useful_qtable,
|
|
ARRAY_SIZE(led_useful_qtable));
|
|
|
|
if (!useful_leds) {
|
|
led_handle = NULL;
|
|
led_supported = TPACPI_LED_NONE;
|
|
}
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
|
|
str_supported(led_supported), led_supported);
|
|
|
|
if (led_supported == TPACPI_LED_NONE)
|
|
return 1;
|
|
|
|
tpacpi_leds = kcalloc(TPACPI_LED_NUMLEDS, sizeof(*tpacpi_leds),
|
|
GFP_KERNEL);
|
|
if (!tpacpi_leds) {
|
|
pr_err("Out of memory for LED data\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
|
|
tpacpi_leds[i].led = -1;
|
|
|
|
if (!tpacpi_is_led_restricted(i) &&
|
|
test_bit(i, &useful_leds)) {
|
|
rc = tpacpi_init_led(i);
|
|
if (rc < 0) {
|
|
led_exit();
|
|
return rc;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
|
|
pr_notice("warning: userspace override of important firmware LEDs is enabled\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
#define str_led_status(s) \
|
|
((s) == TPACPI_LED_OFF ? "off" : \
|
|
((s) == TPACPI_LED_ON ? "on" : "blinking"))
|
|
|
|
static int led_read(struct seq_file *m)
|
|
{
|
|
if (!led_supported) {
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
return 0;
|
|
}
|
|
seq_printf(m, "status:\t\tsupported\n");
|
|
|
|
if (led_supported == TPACPI_LED_570) {
|
|
/* 570 */
|
|
int i, status;
|
|
for (i = 0; i < 8; i++) {
|
|
status = led_get_status(i);
|
|
if (status < 0)
|
|
return -EIO;
|
|
seq_printf(m, "%d:\t\t%s\n",
|
|
i, str_led_status(status));
|
|
}
|
|
}
|
|
|
|
seq_printf(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int led_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int led, rc;
|
|
enum led_status_t s;
|
|
|
|
if (!led_supported)
|
|
return -ENODEV;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (sscanf(cmd, "%d", &led) != 1)
|
|
return -EINVAL;
|
|
|
|
if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1) ||
|
|
tpacpi_leds[led].led < 0)
|
|
return -ENODEV;
|
|
|
|
if (strstr(cmd, "off")) {
|
|
s = TPACPI_LED_OFF;
|
|
} else if (strstr(cmd, "on")) {
|
|
s = TPACPI_LED_ON;
|
|
} else if (strstr(cmd, "blink")) {
|
|
s = TPACPI_LED_BLINK;
|
|
} else {
|
|
return -EINVAL;
|
|
}
|
|
|
|
rc = led_set_status(led, s);
|
|
if (rc < 0)
|
|
return rc;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ibm_struct led_driver_data = {
|
|
.name = "led",
|
|
.read = led_read,
|
|
.write = led_write,
|
|
.exit = led_exit,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Beep subdriver
|
|
*/
|
|
|
|
TPACPI_HANDLE(beep, ec, "BEEP"); /* all except R30, R31 */
|
|
|
|
#define TPACPI_BEEP_Q1 0x0001
|
|
|
|
static const struct tpacpi_quirk beep_quirk_table[] __initconst = {
|
|
TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1), /* 570 */
|
|
TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1), /* 570E - unverified */
|
|
};
|
|
|
|
static int __init beep_init(struct ibm_init_struct *iibm)
|
|
{
|
|
unsigned long quirks;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n");
|
|
|
|
TPACPI_ACPIHANDLE_INIT(beep);
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n",
|
|
str_supported(beep_handle != NULL));
|
|
|
|
quirks = tpacpi_check_quirks(beep_quirk_table,
|
|
ARRAY_SIZE(beep_quirk_table));
|
|
|
|
tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1);
|
|
|
|
return (beep_handle) ? 0 : 1;
|
|
}
|
|
|
|
static int beep_read(struct seq_file *m)
|
|
{
|
|
if (!beep_handle)
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
else {
|
|
seq_printf(m, "status:\t\tsupported\n");
|
|
seq_printf(m, "commands:\t<cmd> (<cmd> is 0-17)\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int beep_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int beep_cmd;
|
|
|
|
if (!beep_handle)
|
|
return -ENODEV;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (sscanf(cmd, "%u", &beep_cmd) == 1 &&
|
|
beep_cmd >= 0 && beep_cmd <= 17) {
|
|
/* beep_cmd set */
|
|
} else
|
|
return -EINVAL;
|
|
if (tp_features.beep_needs_two_args) {
|
|
if (!acpi_evalf(beep_handle, NULL, NULL, "vdd",
|
|
beep_cmd, 0))
|
|
return -EIO;
|
|
} else {
|
|
if (!acpi_evalf(beep_handle, NULL, NULL, "vd",
|
|
beep_cmd))
|
|
return -EIO;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ibm_struct beep_driver_data = {
|
|
.name = "beep",
|
|
.read = beep_read,
|
|
.write = beep_write,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Thermal subdriver
|
|
*/
|
|
|
|
enum thermal_access_mode {
|
|
TPACPI_THERMAL_NONE = 0, /* No thermal support */
|
|
TPACPI_THERMAL_ACPI_TMP07, /* Use ACPI TMP0-7 */
|
|
TPACPI_THERMAL_ACPI_UPDT, /* Use ACPI TMP0-7 with UPDT */
|
|
TPACPI_THERMAL_TPEC_8, /* Use ACPI EC regs, 8 sensors */
|
|
TPACPI_THERMAL_TPEC_16, /* Use ACPI EC regs, 16 sensors */
|
|
};
|
|
|
|
enum { /* TPACPI_THERMAL_TPEC_* */
|
|
TP_EC_THERMAL_TMP0 = 0x78, /* ACPI EC regs TMP 0..7 */
|
|
TP_EC_THERMAL_TMP8 = 0xC0, /* ACPI EC regs TMP 8..15 */
|
|
TP_EC_THERMAL_TMP_NA = -128, /* ACPI EC sensor not available */
|
|
|
|
TPACPI_THERMAL_SENSOR_NA = -128000, /* Sensor not available */
|
|
};
|
|
|
|
|
|
#define TPACPI_MAX_THERMAL_SENSORS 16 /* Max thermal sensors supported */
|
|
struct ibm_thermal_sensors_struct {
|
|
s32 temp[TPACPI_MAX_THERMAL_SENSORS];
|
|
};
|
|
|
|
static enum thermal_access_mode thermal_read_mode;
|
|
|
|
/* idx is zero-based */
|
|
static int thermal_get_sensor(int idx, s32 *value)
|
|
{
|
|
int t;
|
|
s8 tmp;
|
|
char tmpi[5];
|
|
|
|
t = TP_EC_THERMAL_TMP0;
|
|
|
|
switch (thermal_read_mode) {
|
|
#if TPACPI_MAX_THERMAL_SENSORS >= 16
|
|
case TPACPI_THERMAL_TPEC_16:
|
|
if (idx >= 8 && idx <= 15) {
|
|
t = TP_EC_THERMAL_TMP8;
|
|
idx -= 8;
|
|
}
|
|
#endif
|
|
/* fallthrough */
|
|
case TPACPI_THERMAL_TPEC_8:
|
|
if (idx <= 7) {
|
|
if (!acpi_ec_read(t + idx, &tmp))
|
|
return -EIO;
|
|
*value = tmp * 1000;
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case TPACPI_THERMAL_ACPI_UPDT:
|
|
if (idx <= 7) {
|
|
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
|
|
if (!acpi_evalf(ec_handle, NULL, "UPDT", "v"))
|
|
return -EIO;
|
|
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
|
|
return -EIO;
|
|
*value = (t - 2732) * 100;
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case TPACPI_THERMAL_ACPI_TMP07:
|
|
if (idx <= 7) {
|
|
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
|
|
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
|
|
return -EIO;
|
|
if (t > 127 || t < -127)
|
|
t = TP_EC_THERMAL_TMP_NA;
|
|
*value = t * 1000;
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
case TPACPI_THERMAL_NONE:
|
|
default:
|
|
return -ENOSYS;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
|
|
{
|
|
int res, i;
|
|
int n;
|
|
|
|
n = 8;
|
|
i = 0;
|
|
|
|
if (!s)
|
|
return -EINVAL;
|
|
|
|
if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
|
|
n = 16;
|
|
|
|
for (i = 0 ; i < n; i++) {
|
|
res = thermal_get_sensor(i, &s->temp[i]);
|
|
if (res)
|
|
return res;
|
|
}
|
|
|
|
return n;
|
|
}
|
|
|
|
static void thermal_dump_all_sensors(void)
|
|
{
|
|
int n, i;
|
|
struct ibm_thermal_sensors_struct t;
|
|
|
|
n = thermal_get_sensors(&t);
|
|
if (n <= 0)
|
|
return;
|
|
|
|
pr_notice("temperatures (Celsius):");
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA)
|
|
pr_cont(" %d", (int)(t.temp[i] / 1000));
|
|
else
|
|
pr_cont(" N/A");
|
|
}
|
|
|
|
pr_cont("\n");
|
|
}
|
|
|
|
/* sysfs temp##_input -------------------------------------------------- */
|
|
|
|
static ssize_t thermal_temp_input_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *sensor_attr =
|
|
to_sensor_dev_attr(attr);
|
|
int idx = sensor_attr->index;
|
|
s32 value;
|
|
int res;
|
|
|
|
res = thermal_get_sensor(idx, &value);
|
|
if (res)
|
|
return res;
|
|
if (value == TPACPI_THERMAL_SENSOR_NA)
|
|
return -ENXIO;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", value);
|
|
}
|
|
|
|
#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
|
|
SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \
|
|
thermal_temp_input_show, NULL, _idxB)
|
|
|
|
static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = {
|
|
THERMAL_SENSOR_ATTR_TEMP(1, 0),
|
|
THERMAL_SENSOR_ATTR_TEMP(2, 1),
|
|
THERMAL_SENSOR_ATTR_TEMP(3, 2),
|
|
THERMAL_SENSOR_ATTR_TEMP(4, 3),
|
|
THERMAL_SENSOR_ATTR_TEMP(5, 4),
|
|
THERMAL_SENSOR_ATTR_TEMP(6, 5),
|
|
THERMAL_SENSOR_ATTR_TEMP(7, 6),
|
|
THERMAL_SENSOR_ATTR_TEMP(8, 7),
|
|
THERMAL_SENSOR_ATTR_TEMP(9, 8),
|
|
THERMAL_SENSOR_ATTR_TEMP(10, 9),
|
|
THERMAL_SENSOR_ATTR_TEMP(11, 10),
|
|
THERMAL_SENSOR_ATTR_TEMP(12, 11),
|
|
THERMAL_SENSOR_ATTR_TEMP(13, 12),
|
|
THERMAL_SENSOR_ATTR_TEMP(14, 13),
|
|
THERMAL_SENSOR_ATTR_TEMP(15, 14),
|
|
THERMAL_SENSOR_ATTR_TEMP(16, 15),
|
|
};
|
|
|
|
#define THERMAL_ATTRS(X) \
|
|
&sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
|
|
|
|
static struct attribute *thermal_temp_input_attr[] = {
|
|
THERMAL_ATTRS(8),
|
|
THERMAL_ATTRS(9),
|
|
THERMAL_ATTRS(10),
|
|
THERMAL_ATTRS(11),
|
|
THERMAL_ATTRS(12),
|
|
THERMAL_ATTRS(13),
|
|
THERMAL_ATTRS(14),
|
|
THERMAL_ATTRS(15),
|
|
THERMAL_ATTRS(0),
|
|
THERMAL_ATTRS(1),
|
|
THERMAL_ATTRS(2),
|
|
THERMAL_ATTRS(3),
|
|
THERMAL_ATTRS(4),
|
|
THERMAL_ATTRS(5),
|
|
THERMAL_ATTRS(6),
|
|
THERMAL_ATTRS(7),
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group thermal_temp_input16_group = {
|
|
.attrs = thermal_temp_input_attr
|
|
};
|
|
|
|
static const struct attribute_group thermal_temp_input8_group = {
|
|
.attrs = &thermal_temp_input_attr[8]
|
|
};
|
|
|
|
#undef THERMAL_SENSOR_ATTR_TEMP
|
|
#undef THERMAL_ATTRS
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
static int __init thermal_init(struct ibm_init_struct *iibm)
|
|
{
|
|
u8 t, ta1, ta2;
|
|
int i;
|
|
int acpi_tmp7;
|
|
int res;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n");
|
|
|
|
acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv");
|
|
|
|
if (thinkpad_id.ec_model) {
|
|
/*
|
|
* Direct EC access mode: sensors at registers
|
|
* 0x78-0x7F, 0xC0-0xC7. Registers return 0x00 for
|
|
* non-implemented, thermal sensors return 0x80 when
|
|
* not available
|
|
*/
|
|
|
|
ta1 = ta2 = 0;
|
|
for (i = 0; i < 8; i++) {
|
|
if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) {
|
|
ta1 |= t;
|
|
} else {
|
|
ta1 = 0;
|
|
break;
|
|
}
|
|
if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) {
|
|
ta2 |= t;
|
|
} else {
|
|
ta1 = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (ta1 == 0) {
|
|
/* This is sheer paranoia, but we handle it anyway */
|
|
if (acpi_tmp7) {
|
|
pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n");
|
|
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
|
|
} else {
|
|
pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n");
|
|
thermal_read_mode = TPACPI_THERMAL_NONE;
|
|
}
|
|
} else {
|
|
thermal_read_mode =
|
|
(ta2 != 0) ?
|
|
TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8;
|
|
}
|
|
} else if (acpi_tmp7) {
|
|
if (tpacpi_is_ibm() &&
|
|
acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
|
|
/* 600e/x, 770e, 770x */
|
|
thermal_read_mode = TPACPI_THERMAL_ACPI_UPDT;
|
|
} else {
|
|
/* IBM/LENOVO DSDT EC.TMPx access, max 8 sensors */
|
|
thermal_read_mode = TPACPI_THERMAL_ACPI_TMP07;
|
|
}
|
|
} else {
|
|
/* temperatures not supported on 570, G4x, R30, R31, R32 */
|
|
thermal_read_mode = TPACPI_THERMAL_NONE;
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n",
|
|
str_supported(thermal_read_mode != TPACPI_THERMAL_NONE),
|
|
thermal_read_mode);
|
|
|
|
switch (thermal_read_mode) {
|
|
case TPACPI_THERMAL_TPEC_16:
|
|
res = sysfs_create_group(&tpacpi_hwmon->kobj,
|
|
&thermal_temp_input16_group);
|
|
if (res)
|
|
return res;
|
|
break;
|
|
case TPACPI_THERMAL_TPEC_8:
|
|
case TPACPI_THERMAL_ACPI_TMP07:
|
|
case TPACPI_THERMAL_ACPI_UPDT:
|
|
res = sysfs_create_group(&tpacpi_hwmon->kobj,
|
|
&thermal_temp_input8_group);
|
|
if (res)
|
|
return res;
|
|
break;
|
|
case TPACPI_THERMAL_NONE:
|
|
default:
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void thermal_exit(void)
|
|
{
|
|
switch (thermal_read_mode) {
|
|
case TPACPI_THERMAL_TPEC_16:
|
|
sysfs_remove_group(&tpacpi_hwmon->kobj,
|
|
&thermal_temp_input16_group);
|
|
break;
|
|
case TPACPI_THERMAL_TPEC_8:
|
|
case TPACPI_THERMAL_ACPI_TMP07:
|
|
case TPACPI_THERMAL_ACPI_UPDT:
|
|
sysfs_remove_group(&tpacpi_hwmon->kobj,
|
|
&thermal_temp_input8_group);
|
|
break;
|
|
case TPACPI_THERMAL_NONE:
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int thermal_read(struct seq_file *m)
|
|
{
|
|
int n, i;
|
|
struct ibm_thermal_sensors_struct t;
|
|
|
|
n = thermal_get_sensors(&t);
|
|
if (unlikely(n < 0))
|
|
return n;
|
|
|
|
seq_printf(m, "temperatures:\t");
|
|
|
|
if (n > 0) {
|
|
for (i = 0; i < (n - 1); i++)
|
|
seq_printf(m, "%d ", t.temp[i] / 1000);
|
|
seq_printf(m, "%d\n", t.temp[i] / 1000);
|
|
} else
|
|
seq_printf(m, "not supported\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct ibm_struct thermal_driver_data = {
|
|
.name = "thermal",
|
|
.read = thermal_read,
|
|
.exit = thermal_exit,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Backlight/brightness subdriver
|
|
*/
|
|
|
|
#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
|
|
|
|
/*
|
|
* ThinkPads can read brightness from two places: EC HBRV (0x31), or
|
|
* CMOS NVRAM byte 0x5E, bits 0-3.
|
|
*
|
|
* EC HBRV (0x31) has the following layout
|
|
* Bit 7: unknown function
|
|
* Bit 6: unknown function
|
|
* Bit 5: Z: honour scale changes, NZ: ignore scale changes
|
|
* Bit 4: must be set to zero to avoid problems
|
|
* Bit 3-0: backlight brightness level
|
|
*
|
|
* brightness_get_raw returns status data in the HBRV layout
|
|
*
|
|
* WARNING: The X61 has been verified to use HBRV for something else, so
|
|
* this should be used _only_ on IBM ThinkPads, and maybe with some careful
|
|
* testing on the very early *60 Lenovo models...
|
|
*/
|
|
|
|
enum {
|
|
TP_EC_BACKLIGHT = 0x31,
|
|
|
|
/* TP_EC_BACKLIGHT bitmasks */
|
|
TP_EC_BACKLIGHT_LVLMSK = 0x1F,
|
|
TP_EC_BACKLIGHT_CMDMSK = 0xE0,
|
|
TP_EC_BACKLIGHT_MAPSW = 0x20,
|
|
};
|
|
|
|
enum tpacpi_brightness_access_mode {
|
|
TPACPI_BRGHT_MODE_AUTO = 0, /* Not implemented yet */
|
|
TPACPI_BRGHT_MODE_EC, /* EC control */
|
|
TPACPI_BRGHT_MODE_UCMS_STEP, /* UCMS step-based control */
|
|
TPACPI_BRGHT_MODE_ECNVRAM, /* EC control w/ NVRAM store */
|
|
TPACPI_BRGHT_MODE_MAX
|
|
};
|
|
|
|
static struct backlight_device *ibm_backlight_device;
|
|
|
|
static enum tpacpi_brightness_access_mode brightness_mode =
|
|
TPACPI_BRGHT_MODE_MAX;
|
|
|
|
static unsigned int brightness_enable = 2; /* 2 = auto, 0 = no, 1 = yes */
|
|
|
|
static struct mutex brightness_mutex;
|
|
|
|
/* NVRAM brightness access,
|
|
* call with brightness_mutex held! */
|
|
static unsigned int tpacpi_brightness_nvram_get(void)
|
|
{
|
|
u8 lnvram;
|
|
|
|
lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
|
|
& TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
|
|
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
|
|
lnvram &= bright_maxlvl;
|
|
|
|
return lnvram;
|
|
}
|
|
|
|
static void tpacpi_brightness_checkpoint_nvram(void)
|
|
{
|
|
u8 lec = 0;
|
|
u8 b_nvram;
|
|
|
|
if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM)
|
|
return;
|
|
|
|
vdbg_printk(TPACPI_DBG_BRGHT,
|
|
"trying to checkpoint backlight level to NVRAM...\n");
|
|
|
|
if (mutex_lock_killable(&brightness_mutex) < 0)
|
|
return;
|
|
|
|
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
|
|
goto unlock;
|
|
lec &= TP_EC_BACKLIGHT_LVLMSK;
|
|
b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
|
|
|
|
if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
|
|
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) {
|
|
/* NVRAM needs update */
|
|
b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS <<
|
|
TP_NVRAM_POS_LEVEL_BRIGHTNESS);
|
|
b_nvram |= lec;
|
|
nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS);
|
|
dbg_printk(TPACPI_DBG_BRGHT,
|
|
"updated NVRAM backlight level to %u (0x%02x)\n",
|
|
(unsigned int) lec, (unsigned int) b_nvram);
|
|
} else
|
|
vdbg_printk(TPACPI_DBG_BRGHT,
|
|
"NVRAM backlight level already is %u (0x%02x)\n",
|
|
(unsigned int) lec, (unsigned int) b_nvram);
|
|
|
|
unlock:
|
|
mutex_unlock(&brightness_mutex);
|
|
}
|
|
|
|
|
|
/* call with brightness_mutex held! */
|
|
static int tpacpi_brightness_get_raw(int *status)
|
|
{
|
|
u8 lec = 0;
|
|
|
|
switch (brightness_mode) {
|
|
case TPACPI_BRGHT_MODE_UCMS_STEP:
|
|
*status = tpacpi_brightness_nvram_get();
|
|
return 0;
|
|
case TPACPI_BRGHT_MODE_EC:
|
|
case TPACPI_BRGHT_MODE_ECNVRAM:
|
|
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
|
|
return -EIO;
|
|
*status = lec;
|
|
return 0;
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
}
|
|
|
|
/* call with brightness_mutex held! */
|
|
/* do NOT call with illegal backlight level value */
|
|
static int tpacpi_brightness_set_ec(unsigned int value)
|
|
{
|
|
u8 lec = 0;
|
|
|
|
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
|
|
return -EIO;
|
|
|
|
if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT,
|
|
(lec & TP_EC_BACKLIGHT_CMDMSK) |
|
|
(value & TP_EC_BACKLIGHT_LVLMSK))))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* call with brightness_mutex held! */
|
|
static int tpacpi_brightness_set_ucmsstep(unsigned int value)
|
|
{
|
|
int cmos_cmd, inc;
|
|
unsigned int current_value, i;
|
|
|
|
current_value = tpacpi_brightness_nvram_get();
|
|
|
|
if (value == current_value)
|
|
return 0;
|
|
|
|
cmos_cmd = (value > current_value) ?
|
|
TP_CMOS_BRIGHTNESS_UP :
|
|
TP_CMOS_BRIGHTNESS_DOWN;
|
|
inc = (value > current_value) ? 1 : -1;
|
|
|
|
for (i = current_value; i != value; i += inc)
|
|
if (issue_thinkpad_cmos_command(cmos_cmd))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* May return EINTR which can always be mapped to ERESTARTSYS */
|
|
static int brightness_set(unsigned int value)
|
|
{
|
|
int res;
|
|
|
|
if (value > bright_maxlvl)
|
|
return -EINVAL;
|
|
|
|
vdbg_printk(TPACPI_DBG_BRGHT,
|
|
"set backlight level to %d\n", value);
|
|
|
|
res = mutex_lock_killable(&brightness_mutex);
|
|
if (res < 0)
|
|
return res;
|
|
|
|
switch (brightness_mode) {
|
|
case TPACPI_BRGHT_MODE_EC:
|
|
case TPACPI_BRGHT_MODE_ECNVRAM:
|
|
res = tpacpi_brightness_set_ec(value);
|
|
break;
|
|
case TPACPI_BRGHT_MODE_UCMS_STEP:
|
|
res = tpacpi_brightness_set_ucmsstep(value);
|
|
break;
|
|
default:
|
|
res = -ENXIO;
|
|
}
|
|
|
|
mutex_unlock(&brightness_mutex);
|
|
return res;
|
|
}
|
|
|
|
/* sysfs backlight class ----------------------------------------------- */
|
|
|
|
static int brightness_update_status(struct backlight_device *bd)
|
|
{
|
|
unsigned int level =
|
|
(bd->props.fb_blank == FB_BLANK_UNBLANK &&
|
|
bd->props.power == FB_BLANK_UNBLANK) ?
|
|
bd->props.brightness : 0;
|
|
|
|
dbg_printk(TPACPI_DBG_BRGHT,
|
|
"backlight: attempt to set level to %d\n",
|
|
level);
|
|
|
|
/* it is the backlight class's job (caller) to handle
|
|
* EINTR and other errors properly */
|
|
return brightness_set(level);
|
|
}
|
|
|
|
static int brightness_get(struct backlight_device *bd)
|
|
{
|
|
int status, res;
|
|
|
|
res = mutex_lock_killable(&brightness_mutex);
|
|
if (res < 0)
|
|
return 0;
|
|
|
|
res = tpacpi_brightness_get_raw(&status);
|
|
|
|
mutex_unlock(&brightness_mutex);
|
|
|
|
if (res < 0)
|
|
return 0;
|
|
|
|
return status & TP_EC_BACKLIGHT_LVLMSK;
|
|
}
|
|
|
|
static void tpacpi_brightness_notify_change(void)
|
|
{
|
|
backlight_force_update(ibm_backlight_device,
|
|
BACKLIGHT_UPDATE_HOTKEY);
|
|
}
|
|
|
|
static const struct backlight_ops ibm_backlight_data = {
|
|
.get_brightness = brightness_get,
|
|
.update_status = brightness_update_status,
|
|
};
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
/*
|
|
* Call _BCL method of video device. On some ThinkPads this will
|
|
* switch the firmware to the ACPI brightness control mode.
|
|
*/
|
|
|
|
static int __init tpacpi_query_bcl_levels(acpi_handle handle)
|
|
{
|
|
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
union acpi_object *obj;
|
|
struct acpi_device *device, *child;
|
|
int rc;
|
|
|
|
if (acpi_bus_get_device(handle, &device))
|
|
return 0;
|
|
|
|
rc = 0;
|
|
list_for_each_entry(child, &device->children, node) {
|
|
acpi_status status = acpi_evaluate_object(child->handle, "_BCL",
|
|
NULL, &buffer);
|
|
if (ACPI_FAILURE(status))
|
|
continue;
|
|
|
|
obj = (union acpi_object *)buffer.pointer;
|
|
if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
|
|
pr_err("Unknown _BCL data, please report this to %s\n",
|
|
TPACPI_MAIL);
|
|
rc = 0;
|
|
} else {
|
|
rc = obj->package.count;
|
|
}
|
|
break;
|
|
}
|
|
|
|
kfree(buffer.pointer);
|
|
return rc;
|
|
}
|
|
|
|
|
|
/*
|
|
* Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
|
|
*/
|
|
static unsigned int __init tpacpi_check_std_acpi_brightness_support(void)
|
|
{
|
|
acpi_handle video_device;
|
|
int bcl_levels = 0;
|
|
|
|
tpacpi_acpi_handle_locate("video", NULL, &video_device);
|
|
if (video_device)
|
|
bcl_levels = tpacpi_query_bcl_levels(video_device);
|
|
|
|
tp_features.bright_acpimode = (bcl_levels > 0);
|
|
|
|
return (bcl_levels > 2) ? (bcl_levels - 2) : 0;
|
|
}
|
|
|
|
/*
|
|
* These are only useful for models that have only one possibility
|
|
* of GPU. If the BIOS model handles both ATI and Intel, don't use
|
|
* these quirks.
|
|
*/
|
|
#define TPACPI_BRGHT_Q_NOEC 0x0001 /* Must NOT use EC HBRV */
|
|
#define TPACPI_BRGHT_Q_EC 0x0002 /* Should or must use EC HBRV */
|
|
#define TPACPI_BRGHT_Q_ASK 0x8000 /* Ask for user report */
|
|
|
|
static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
|
|
/* Models with ATI GPUs known to require ECNVRAM mode */
|
|
TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC), /* T43/p ATI */
|
|
|
|
/* Models with ATI GPUs that can use ECNVRAM */
|
|
TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC), /* R50,51 T40-42 */
|
|
TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
|
|
TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC), /* R52 */
|
|
TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
|
|
|
|
/* Models with Intel Extreme Graphics 2 */
|
|
TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC), /* X40 */
|
|
TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
|
|
TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
|
|
|
|
/* Models with Intel GMA900 */
|
|
TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC), /* T43, R52 */
|
|
TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC), /* X41 */
|
|
TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC), /* X41 Tablet */
|
|
};
|
|
|
|
/*
|
|
* Returns < 0 for error, otherwise sets tp_features.bright_*
|
|
* and bright_maxlvl.
|
|
*/
|
|
static void __init tpacpi_detect_brightness_capabilities(void)
|
|
{
|
|
unsigned int b;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT,
|
|
"detecting firmware brightness interface capabilities\n");
|
|
|
|
/* we could run a quirks check here (same table used by
|
|
* brightness_init) if needed */
|
|
|
|
/*
|
|
* We always attempt to detect acpi support, so as to switch
|
|
* Lenovo Vista BIOS to ACPI brightness mode even if we are not
|
|
* going to publish a backlight interface
|
|
*/
|
|
b = tpacpi_check_std_acpi_brightness_support();
|
|
switch (b) {
|
|
case 16:
|
|
bright_maxlvl = 15;
|
|
break;
|
|
case 8:
|
|
case 0:
|
|
bright_maxlvl = 7;
|
|
break;
|
|
default:
|
|
tp_features.bright_unkfw = 1;
|
|
bright_maxlvl = b - 1;
|
|
}
|
|
pr_debug("detected %u brightness levels\n", bright_maxlvl + 1);
|
|
}
|
|
|
|
static int __init brightness_init(struct ibm_init_struct *iibm)
|
|
{
|
|
struct backlight_properties props;
|
|
int b;
|
|
unsigned long quirks;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n");
|
|
|
|
mutex_init(&brightness_mutex);
|
|
|
|
quirks = tpacpi_check_quirks(brightness_quirk_table,
|
|
ARRAY_SIZE(brightness_quirk_table));
|
|
|
|
/* tpacpi_detect_brightness_capabilities() must have run already */
|
|
|
|
/* if it is unknown, we don't handle it: it wouldn't be safe */
|
|
if (tp_features.bright_unkfw)
|
|
return 1;
|
|
|
|
if (!brightness_enable) {
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
|
|
"brightness support disabled by module parameter\n");
|
|
return 1;
|
|
}
|
|
|
|
if (acpi_video_get_backlight_type() != acpi_backlight_vendor) {
|
|
if (brightness_enable > 1) {
|
|
pr_info("Standard ACPI backlight interface available, not loading native one\n");
|
|
return 1;
|
|
} else if (brightness_enable == 1) {
|
|
pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n");
|
|
return 1;
|
|
}
|
|
} else if (tp_features.bright_acpimode && brightness_enable > 1) {
|
|
pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n");
|
|
}
|
|
|
|
/*
|
|
* Check for module parameter bogosity, note that we
|
|
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
|
|
* able to detect "unspecified"
|
|
*/
|
|
if (brightness_mode > TPACPI_BRGHT_MODE_MAX)
|
|
return -EINVAL;
|
|
|
|
/* TPACPI_BRGHT_MODE_AUTO not implemented yet, just use default */
|
|
if (brightness_mode == TPACPI_BRGHT_MODE_AUTO ||
|
|
brightness_mode == TPACPI_BRGHT_MODE_MAX) {
|
|
if (quirks & TPACPI_BRGHT_Q_EC)
|
|
brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM;
|
|
else
|
|
brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
|
|
|
|
dbg_printk(TPACPI_DBG_BRGHT,
|
|
"driver auto-selected brightness_mode=%d\n",
|
|
brightness_mode);
|
|
}
|
|
|
|
/* Safety */
|
|
if (!tpacpi_is_ibm() &&
|
|
(brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM ||
|
|
brightness_mode == TPACPI_BRGHT_MODE_EC))
|
|
return -EINVAL;
|
|
|
|
if (tpacpi_brightness_get_raw(&b) < 0)
|
|
return 1;
|
|
|
|
memset(&props, 0, sizeof(struct backlight_properties));
|
|
props.type = BACKLIGHT_PLATFORM;
|
|
props.max_brightness = bright_maxlvl;
|
|
props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
|
|
ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
|
|
NULL, NULL,
|
|
&ibm_backlight_data,
|
|
&props);
|
|
if (IS_ERR(ibm_backlight_device)) {
|
|
int rc = PTR_ERR(ibm_backlight_device);
|
|
ibm_backlight_device = NULL;
|
|
pr_err("Could not register backlight device\n");
|
|
return rc;
|
|
}
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
|
|
"brightness is supported\n");
|
|
|
|
if (quirks & TPACPI_BRGHT_Q_ASK) {
|
|
pr_notice("brightness: will use unverified default: brightness_mode=%d\n",
|
|
brightness_mode);
|
|
pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n",
|
|
TPACPI_MAIL);
|
|
}
|
|
|
|
/* Added by mistake in early 2007. Probably useless, but it could
|
|
* be working around some unknown firmware problem where the value
|
|
* read at startup doesn't match the real hardware state... so leave
|
|
* it in place just in case */
|
|
backlight_update_status(ibm_backlight_device);
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
|
|
"brightness: registering brightness hotkeys as change notification\n");
|
|
tpacpi_hotkey_driver_mask_set(hotkey_driver_mask
|
|
| TP_ACPI_HKEY_BRGHTUP_MASK
|
|
| TP_ACPI_HKEY_BRGHTDWN_MASK);
|
|
return 0;
|
|
}
|
|
|
|
static void brightness_suspend(void)
|
|
{
|
|
tpacpi_brightness_checkpoint_nvram();
|
|
}
|
|
|
|
static void brightness_shutdown(void)
|
|
{
|
|
tpacpi_brightness_checkpoint_nvram();
|
|
}
|
|
|
|
static void brightness_exit(void)
|
|
{
|
|
if (ibm_backlight_device) {
|
|
vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT,
|
|
"calling backlight_device_unregister()\n");
|
|
backlight_device_unregister(ibm_backlight_device);
|
|
}
|
|
|
|
tpacpi_brightness_checkpoint_nvram();
|
|
}
|
|
|
|
static int brightness_read(struct seq_file *m)
|
|
{
|
|
int level;
|
|
|
|
level = brightness_get(NULL);
|
|
if (level < 0) {
|
|
seq_printf(m, "level:\t\tunreadable\n");
|
|
} else {
|
|
seq_printf(m, "level:\t\t%d\n", level);
|
|
seq_printf(m, "commands:\tup, down\n");
|
|
seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n",
|
|
bright_maxlvl);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int brightness_write(char *buf)
|
|
{
|
|
int level;
|
|
int rc;
|
|
char *cmd;
|
|
|
|
level = brightness_get(NULL);
|
|
if (level < 0)
|
|
return level;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (strlencmp(cmd, "up") == 0) {
|
|
if (level < bright_maxlvl)
|
|
level++;
|
|
} else if (strlencmp(cmd, "down") == 0) {
|
|
if (level > 0)
|
|
level--;
|
|
} else if (sscanf(cmd, "level %d", &level) == 1 &&
|
|
level >= 0 && level <= bright_maxlvl) {
|
|
/* new level set */
|
|
} else
|
|
return -EINVAL;
|
|
}
|
|
|
|
tpacpi_disclose_usertask("procfs brightness",
|
|
"set level to %d\n", level);
|
|
|
|
/*
|
|
* Now we know what the final level should be, so we try to set it.
|
|
* Doing it this way makes the syscall restartable in case of EINTR
|
|
*/
|
|
rc = brightness_set(level);
|
|
if (!rc && ibm_backlight_device)
|
|
backlight_force_update(ibm_backlight_device,
|
|
BACKLIGHT_UPDATE_SYSFS);
|
|
return (rc == -EINTR) ? -ERESTARTSYS : rc;
|
|
}
|
|
|
|
static struct ibm_struct brightness_driver_data = {
|
|
.name = "brightness",
|
|
.read = brightness_read,
|
|
.write = brightness_write,
|
|
.exit = brightness_exit,
|
|
.suspend = brightness_suspend,
|
|
.shutdown = brightness_shutdown,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Volume subdriver
|
|
*/
|
|
|
|
/*
|
|
* IBM ThinkPads have a simple volume controller with MUTE gating.
|
|
* Very early Lenovo ThinkPads follow the IBM ThinkPad spec.
|
|
*
|
|
* Since the *61 series (and probably also the later *60 series), Lenovo
|
|
* ThinkPads only implement the MUTE gate.
|
|
*
|
|
* EC register 0x30
|
|
* Bit 6: MUTE (1 mutes sound)
|
|
* Bit 3-0: Volume
|
|
* Other bits should be zero as far as we know.
|
|
*
|
|
* This is also stored in CMOS NVRAM, byte 0x60, bit 6 (MUTE), and
|
|
* bits 3-0 (volume). Other bits in NVRAM may have other functions,
|
|
* such as bit 7 which is used to detect repeated presses of MUTE,
|
|
* and we leave them unchanged.
|
|
*
|
|
* On newer Lenovo ThinkPads, the EC can automatically change the volume
|
|
* in response to user input. Unfortunately, this rarely works well.
|
|
* The laptop changes the state of its internal MUTE gate and, on some
|
|
* models, sends KEY_MUTE, causing any user code that responds to the
|
|
* mute button to get confused. The hardware MUTE gate is also
|
|
* unnecessary, since user code can handle the mute button without
|
|
* kernel or EC help.
|
|
*
|
|
* To avoid confusing userspace, we simply disable all EC-based mute
|
|
* and volume controls when possible.
|
|
*/
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT
|
|
|
|
#define TPACPI_ALSA_DRVNAME "ThinkPad EC"
|
|
#define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control"
|
|
#define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME
|
|
|
|
#if SNDRV_CARDS <= 32
|
|
#define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1)
|
|
#else
|
|
#define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1)
|
|
#endif
|
|
static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */
|
|
static char *alsa_id = "ThinkPadEC";
|
|
static bool alsa_enable = SNDRV_DEFAULT_ENABLE1;
|
|
|
|
struct tpacpi_alsa_data {
|
|
struct snd_card *card;
|
|
struct snd_ctl_elem_id *ctl_mute_id;
|
|
struct snd_ctl_elem_id *ctl_vol_id;
|
|
};
|
|
|
|
static struct snd_card *alsa_card;
|
|
|
|
enum {
|
|
TP_EC_AUDIO = 0x30,
|
|
|
|
/* TP_EC_AUDIO bits */
|
|
TP_EC_AUDIO_MUTESW = 6,
|
|
|
|
/* TP_EC_AUDIO bitmasks */
|
|
TP_EC_AUDIO_LVL_MSK = 0x0F,
|
|
TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW),
|
|
|
|
/* Maximum volume */
|
|
TP_EC_VOLUME_MAX = 14,
|
|
};
|
|
|
|
enum tpacpi_volume_access_mode {
|
|
TPACPI_VOL_MODE_AUTO = 0, /* Not implemented yet */
|
|
TPACPI_VOL_MODE_EC, /* Pure EC control */
|
|
TPACPI_VOL_MODE_UCMS_STEP, /* UCMS step-based control: N/A */
|
|
TPACPI_VOL_MODE_ECNVRAM, /* EC control w/ NVRAM store */
|
|
TPACPI_VOL_MODE_MAX
|
|
};
|
|
|
|
enum tpacpi_volume_capabilities {
|
|
TPACPI_VOL_CAP_AUTO = 0, /* Use white/blacklist */
|
|
TPACPI_VOL_CAP_VOLMUTE, /* Output vol and mute */
|
|
TPACPI_VOL_CAP_MUTEONLY, /* Output mute only */
|
|
TPACPI_VOL_CAP_MAX
|
|
};
|
|
|
|
enum tpacpi_mute_btn_mode {
|
|
TP_EC_MUTE_BTN_LATCH = 0, /* Mute mutes; up/down unmutes */
|
|
/* We don't know what mode 1 is. */
|
|
TP_EC_MUTE_BTN_NONE = 2, /* Mute and up/down are just keys */
|
|
TP_EC_MUTE_BTN_TOGGLE = 3, /* Mute toggles; up/down unmutes */
|
|
};
|
|
|
|
static enum tpacpi_volume_access_mode volume_mode =
|
|
TPACPI_VOL_MODE_MAX;
|
|
|
|
static enum tpacpi_volume_capabilities volume_capabilities;
|
|
static bool volume_control_allowed;
|
|
static bool software_mute_requested = true;
|
|
static bool software_mute_active;
|
|
static int software_mute_orig_mode;
|
|
|
|
/*
|
|
* Used to syncronize writers to TP_EC_AUDIO and
|
|
* TP_NVRAM_ADDR_MIXER, as we need to do read-modify-write
|
|
*/
|
|
static struct mutex volume_mutex;
|
|
|
|
static void tpacpi_volume_checkpoint_nvram(void)
|
|
{
|
|
u8 lec = 0;
|
|
u8 b_nvram;
|
|
u8 ec_mask;
|
|
|
|
if (volume_mode != TPACPI_VOL_MODE_ECNVRAM)
|
|
return;
|
|
if (!volume_control_allowed)
|
|
return;
|
|
if (software_mute_active)
|
|
return;
|
|
|
|
vdbg_printk(TPACPI_DBG_MIXER,
|
|
"trying to checkpoint mixer state to NVRAM...\n");
|
|
|
|
if (tp_features.mixer_no_level_control)
|
|
ec_mask = TP_EC_AUDIO_MUTESW_MSK;
|
|
else
|
|
ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK;
|
|
|
|
if (mutex_lock_killable(&volume_mutex) < 0)
|
|
return;
|
|
|
|
if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec)))
|
|
goto unlock;
|
|
lec &= ec_mask;
|
|
b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
|
|
|
|
if (lec != (b_nvram & ec_mask)) {
|
|
/* NVRAM needs update */
|
|
b_nvram &= ~ec_mask;
|
|
b_nvram |= lec;
|
|
nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER);
|
|
dbg_printk(TPACPI_DBG_MIXER,
|
|
"updated NVRAM mixer status to 0x%02x (0x%02x)\n",
|
|
(unsigned int) lec, (unsigned int) b_nvram);
|
|
} else {
|
|
vdbg_printk(TPACPI_DBG_MIXER,
|
|
"NVRAM mixer status already is 0x%02x (0x%02x)\n",
|
|
(unsigned int) lec, (unsigned int) b_nvram);
|
|
}
|
|
|
|
unlock:
|
|
mutex_unlock(&volume_mutex);
|
|
}
|
|
|
|
static int volume_get_status_ec(u8 *status)
|
|
{
|
|
u8 s;
|
|
|
|
if (!acpi_ec_read(TP_EC_AUDIO, &s))
|
|
return -EIO;
|
|
|
|
*status = s;
|
|
|
|
dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int volume_get_status(u8 *status)
|
|
{
|
|
return volume_get_status_ec(status);
|
|
}
|
|
|
|
static int volume_set_status_ec(const u8 status)
|
|
{
|
|
if (!acpi_ec_write(TP_EC_AUDIO, status))
|
|
return -EIO;
|
|
|
|
dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status);
|
|
|
|
/*
|
|
* On X200s, and possibly on others, it can take a while for
|
|
* reads to become correct.
|
|
*/
|
|
msleep(1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int volume_set_status(const u8 status)
|
|
{
|
|
return volume_set_status_ec(status);
|
|
}
|
|
|
|
/* returns < 0 on error, 0 on no change, 1 on change */
|
|
static int __volume_set_mute_ec(const bool mute)
|
|
{
|
|
int rc;
|
|
u8 s, n;
|
|
|
|
if (mutex_lock_killable(&volume_mutex) < 0)
|
|
return -EINTR;
|
|
|
|
rc = volume_get_status_ec(&s);
|
|
if (rc)
|
|
goto unlock;
|
|
|
|
n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK :
|
|
s & ~TP_EC_AUDIO_MUTESW_MSK;
|
|
|
|
if (n != s) {
|
|
rc = volume_set_status_ec(n);
|
|
if (!rc)
|
|
rc = 1;
|
|
}
|
|
|
|
unlock:
|
|
mutex_unlock(&volume_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int volume_alsa_set_mute(const bool mute)
|
|
{
|
|
dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n",
|
|
(mute) ? "" : "un");
|
|
return __volume_set_mute_ec(mute);
|
|
}
|
|
|
|
static int volume_set_mute(const bool mute)
|
|
{
|
|
int rc;
|
|
|
|
dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n",
|
|
(mute) ? "" : "un");
|
|
|
|
rc = __volume_set_mute_ec(mute);
|
|
return (rc < 0) ? rc : 0;
|
|
}
|
|
|
|
/* returns < 0 on error, 0 on no change, 1 on change */
|
|
static int __volume_set_volume_ec(const u8 vol)
|
|
{
|
|
int rc;
|
|
u8 s, n;
|
|
|
|
if (vol > TP_EC_VOLUME_MAX)
|
|
return -EINVAL;
|
|
|
|
if (mutex_lock_killable(&volume_mutex) < 0)
|
|
return -EINTR;
|
|
|
|
rc = volume_get_status_ec(&s);
|
|
if (rc)
|
|
goto unlock;
|
|
|
|
n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol;
|
|
|
|
if (n != s) {
|
|
rc = volume_set_status_ec(n);
|
|
if (!rc)
|
|
rc = 1;
|
|
}
|
|
|
|
unlock:
|
|
mutex_unlock(&volume_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int volume_set_software_mute(bool startup)
|
|
{
|
|
int result;
|
|
|
|
if (!tpacpi_is_lenovo())
|
|
return -ENODEV;
|
|
|
|
if (startup) {
|
|
if (!acpi_evalf(ec_handle, &software_mute_orig_mode,
|
|
"HAUM", "qd"))
|
|
return -EIO;
|
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"Initial HAUM setting was %d\n",
|
|
software_mute_orig_mode);
|
|
}
|
|
|
|
if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd",
|
|
(int)TP_EC_MUTE_BTN_NONE))
|
|
return -EIO;
|
|
|
|
if (result != TP_EC_MUTE_BTN_NONE)
|
|
pr_warn("Unexpected SAUM result %d\n",
|
|
result);
|
|
|
|
/*
|
|
* In software mute mode, the standard codec controls take
|
|
* precendence, so we unmute the ThinkPad HW switch at
|
|
* startup. Just on case there are SAUM-capable ThinkPads
|
|
* with level controls, set max HW volume as well.
|
|
*/
|
|
if (tp_features.mixer_no_level_control)
|
|
result = volume_set_mute(false);
|
|
else
|
|
result = volume_set_status(TP_EC_VOLUME_MAX);
|
|
|
|
if (result != 0)
|
|
pr_warn("Failed to unmute the HW mute switch\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void volume_exit_software_mute(void)
|
|
{
|
|
int r;
|
|
|
|
if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode)
|
|
|| r != software_mute_orig_mode)
|
|
pr_warn("Failed to restore mute mode\n");
|
|
}
|
|
|
|
static int volume_alsa_set_volume(const u8 vol)
|
|
{
|
|
dbg_printk(TPACPI_DBG_MIXER,
|
|
"ALSA: trying to set volume level to %hu\n", vol);
|
|
return __volume_set_volume_ec(vol);
|
|
}
|
|
|
|
static void volume_alsa_notify_change(void)
|
|
{
|
|
struct tpacpi_alsa_data *d;
|
|
|
|
if (alsa_card && alsa_card->private_data) {
|
|
d = alsa_card->private_data;
|
|
if (d->ctl_mute_id)
|
|
snd_ctl_notify(alsa_card,
|
|
SNDRV_CTL_EVENT_MASK_VALUE,
|
|
d->ctl_mute_id);
|
|
if (d->ctl_vol_id)
|
|
snd_ctl_notify(alsa_card,
|
|
SNDRV_CTL_EVENT_MASK_VALUE,
|
|
d->ctl_vol_id);
|
|
}
|
|
}
|
|
|
|
static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_info *uinfo)
|
|
{
|
|
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
|
|
uinfo->count = 1;
|
|
uinfo->value.integer.min = 0;
|
|
uinfo->value.integer.max = TP_EC_VOLUME_MAX;
|
|
return 0;
|
|
}
|
|
|
|
static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
u8 s;
|
|
int rc;
|
|
|
|
rc = volume_get_status(&s);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK;
|
|
return 0;
|
|
}
|
|
|
|
static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
tpacpi_disclose_usertask("ALSA", "set volume to %ld\n",
|
|
ucontrol->value.integer.value[0]);
|
|
return volume_alsa_set_volume(ucontrol->value.integer.value[0]);
|
|
}
|
|
|
|
#define volume_alsa_mute_info snd_ctl_boolean_mono_info
|
|
|
|
static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
u8 s;
|
|
int rc;
|
|
|
|
rc = volume_get_status(&s);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
ucontrol->value.integer.value[0] =
|
|
(s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1;
|
|
return 0;
|
|
}
|
|
|
|
static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
tpacpi_disclose_usertask("ALSA", "%smute\n",
|
|
ucontrol->value.integer.value[0] ?
|
|
"un" : "");
|
|
return volume_alsa_set_mute(!ucontrol->value.integer.value[0]);
|
|
}
|
|
|
|
static struct snd_kcontrol_new volume_alsa_control_vol __initdata = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Console Playback Volume",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ,
|
|
.info = volume_alsa_vol_info,
|
|
.get = volume_alsa_vol_get,
|
|
};
|
|
|
|
static struct snd_kcontrol_new volume_alsa_control_mute __initdata = {
|
|
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
|
|
.name = "Console Playback Switch",
|
|
.index = 0,
|
|
.access = SNDRV_CTL_ELEM_ACCESS_READ,
|
|
.info = volume_alsa_mute_info,
|
|
.get = volume_alsa_mute_get,
|
|
};
|
|
|
|
static void volume_suspend(void)
|
|
{
|
|
tpacpi_volume_checkpoint_nvram();
|
|
}
|
|
|
|
static void volume_resume(void)
|
|
{
|
|
if (software_mute_active) {
|
|
if (volume_set_software_mute(false) < 0)
|
|
pr_warn("Failed to restore software mute\n");
|
|
} else {
|
|
volume_alsa_notify_change();
|
|
}
|
|
}
|
|
|
|
static void volume_shutdown(void)
|
|
{
|
|
tpacpi_volume_checkpoint_nvram();
|
|
}
|
|
|
|
static void volume_exit(void)
|
|
{
|
|
if (alsa_card) {
|
|
snd_card_free(alsa_card);
|
|
alsa_card = NULL;
|
|
}
|
|
|
|
tpacpi_volume_checkpoint_nvram();
|
|
|
|
if (software_mute_active)
|
|
volume_exit_software_mute();
|
|
}
|
|
|
|
static int __init volume_create_alsa_mixer(void)
|
|
{
|
|
struct snd_card *card;
|
|
struct tpacpi_alsa_data *data;
|
|
struct snd_kcontrol *ctl_vol;
|
|
struct snd_kcontrol *ctl_mute;
|
|
int rc;
|
|
|
|
rc = snd_card_new(&tpacpi_pdev->dev,
|
|
alsa_index, alsa_id, THIS_MODULE,
|
|
sizeof(struct tpacpi_alsa_data), &card);
|
|
if (rc < 0 || !card) {
|
|
pr_err("Failed to create ALSA card structures: %d\n", rc);
|
|
return 1;
|
|
}
|
|
|
|
BUG_ON(!card->private_data);
|
|
data = card->private_data;
|
|
data->card = card;
|
|
|
|
strlcpy(card->driver, TPACPI_ALSA_DRVNAME,
|
|
sizeof(card->driver));
|
|
strlcpy(card->shortname, TPACPI_ALSA_SHRTNAME,
|
|
sizeof(card->shortname));
|
|
snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s",
|
|
(thinkpad_id.ec_version_str) ?
|
|
thinkpad_id.ec_version_str : "(unknown)");
|
|
snprintf(card->longname, sizeof(card->longname),
|
|
"%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO,
|
|
(thinkpad_id.ec_version_str) ?
|
|
thinkpad_id.ec_version_str : "unknown");
|
|
|
|
if (volume_control_allowed) {
|
|
volume_alsa_control_vol.put = volume_alsa_vol_put;
|
|
volume_alsa_control_vol.access =
|
|
SNDRV_CTL_ELEM_ACCESS_READWRITE;
|
|
|
|
volume_alsa_control_mute.put = volume_alsa_mute_put;
|
|
volume_alsa_control_mute.access =
|
|
SNDRV_CTL_ELEM_ACCESS_READWRITE;
|
|
}
|
|
|
|
if (!tp_features.mixer_no_level_control) {
|
|
ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL);
|
|
rc = snd_ctl_add(card, ctl_vol);
|
|
if (rc < 0) {
|
|
pr_err("Failed to create ALSA volume control: %d\n",
|
|
rc);
|
|
goto err_exit;
|
|
}
|
|
data->ctl_vol_id = &ctl_vol->id;
|
|
}
|
|
|
|
ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL);
|
|
rc = snd_ctl_add(card, ctl_mute);
|
|
if (rc < 0) {
|
|
pr_err("Failed to create ALSA mute control: %d\n", rc);
|
|
goto err_exit;
|
|
}
|
|
data->ctl_mute_id = &ctl_mute->id;
|
|
|
|
rc = snd_card_register(card);
|
|
if (rc < 0) {
|
|
pr_err("Failed to register ALSA card: %d\n", rc);
|
|
goto err_exit;
|
|
}
|
|
|
|
alsa_card = card;
|
|
return 0;
|
|
|
|
err_exit:
|
|
snd_card_free(card);
|
|
return 1;
|
|
}
|
|
|
|
#define TPACPI_VOL_Q_MUTEONLY 0x0001 /* Mute-only control available */
|
|
#define TPACPI_VOL_Q_LEVEL 0x0002 /* Volume control available */
|
|
|
|
static const struct tpacpi_quirk volume_quirk_table[] __initconst = {
|
|
/* Whitelist volume level on all IBM by default */
|
|
{ .vendor = PCI_VENDOR_ID_IBM,
|
|
.bios = TPACPI_MATCH_ANY,
|
|
.ec = TPACPI_MATCH_ANY,
|
|
.quirks = TPACPI_VOL_Q_LEVEL },
|
|
|
|
/* Lenovo models with volume control (needs confirmation) */
|
|
TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL), /* R60/i */
|
|
TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL), /* R60e/i */
|
|
TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL), /* T60/p */
|
|
TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL), /* X60/s */
|
|
TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL), /* X60t */
|
|
TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL), /* Z60 */
|
|
TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL), /* Z61 */
|
|
|
|
/* Whitelist mute-only on all Lenovo by default */
|
|
{ .vendor = PCI_VENDOR_ID_LENOVO,
|
|
.bios = TPACPI_MATCH_ANY,
|
|
.ec = TPACPI_MATCH_ANY,
|
|
.quirks = TPACPI_VOL_Q_MUTEONLY }
|
|
};
|
|
|
|
static int __init volume_init(struct ibm_init_struct *iibm)
|
|
{
|
|
unsigned long quirks;
|
|
int rc;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n");
|
|
|
|
mutex_init(&volume_mutex);
|
|
|
|
/*
|
|
* Check for module parameter bogosity, note that we
|
|
* init volume_mode to TPACPI_VOL_MODE_MAX in order to be
|
|
* able to detect "unspecified"
|
|
*/
|
|
if (volume_mode > TPACPI_VOL_MODE_MAX)
|
|
return -EINVAL;
|
|
|
|
if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) {
|
|
pr_err("UCMS step volume mode not implemented, please contact %s\n",
|
|
TPACPI_MAIL);
|
|
return 1;
|
|
}
|
|
|
|
if (volume_capabilities >= TPACPI_VOL_CAP_MAX)
|
|
return -EINVAL;
|
|
|
|
/*
|
|
* The ALSA mixer is our primary interface.
|
|
* When disabled, don't install the subdriver at all
|
|
*/
|
|
if (!alsa_enable) {
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"ALSA mixer disabled by parameter, not loading volume subdriver...\n");
|
|
return 1;
|
|
}
|
|
|
|
quirks = tpacpi_check_quirks(volume_quirk_table,
|
|
ARRAY_SIZE(volume_quirk_table));
|
|
|
|
switch (volume_capabilities) {
|
|
case TPACPI_VOL_CAP_AUTO:
|
|
if (quirks & TPACPI_VOL_Q_MUTEONLY)
|
|
tp_features.mixer_no_level_control = 1;
|
|
else if (quirks & TPACPI_VOL_Q_LEVEL)
|
|
tp_features.mixer_no_level_control = 0;
|
|
else
|
|
return 1; /* no mixer */
|
|
break;
|
|
case TPACPI_VOL_CAP_VOLMUTE:
|
|
tp_features.mixer_no_level_control = 0;
|
|
break;
|
|
case TPACPI_VOL_CAP_MUTEONLY:
|
|
tp_features.mixer_no_level_control = 1;
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
|
|
if (volume_capabilities != TPACPI_VOL_CAP_AUTO)
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"using user-supplied volume_capabilities=%d\n",
|
|
volume_capabilities);
|
|
|
|
if (volume_mode == TPACPI_VOL_MODE_AUTO ||
|
|
volume_mode == TPACPI_VOL_MODE_MAX) {
|
|
volume_mode = TPACPI_VOL_MODE_ECNVRAM;
|
|
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"driver auto-selected volume_mode=%d\n",
|
|
volume_mode);
|
|
} else {
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"using user-supplied volume_mode=%d\n",
|
|
volume_mode);
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"mute is supported, volume control is %s\n",
|
|
str_supported(!tp_features.mixer_no_level_control));
|
|
|
|
if (software_mute_requested && volume_set_software_mute(true) == 0) {
|
|
software_mute_active = true;
|
|
} else {
|
|
rc = volume_create_alsa_mixer();
|
|
if (rc) {
|
|
pr_err("Could not create the ALSA mixer interface\n");
|
|
return rc;
|
|
}
|
|
|
|
pr_info("Console audio control enabled, mode: %s\n",
|
|
(volume_control_allowed) ?
|
|
"override (read/write)" :
|
|
"monitor (read only)");
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
|
|
"registering volume hotkeys as change notification\n");
|
|
tpacpi_hotkey_driver_mask_set(hotkey_driver_mask
|
|
| TP_ACPI_HKEY_VOLUP_MASK
|
|
| TP_ACPI_HKEY_VOLDWN_MASK
|
|
| TP_ACPI_HKEY_MUTE_MASK);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int volume_read(struct seq_file *m)
|
|
{
|
|
u8 status;
|
|
|
|
if (volume_get_status(&status) < 0) {
|
|
seq_printf(m, "level:\t\tunreadable\n");
|
|
} else {
|
|
if (tp_features.mixer_no_level_control)
|
|
seq_printf(m, "level:\t\tunsupported\n");
|
|
else
|
|
seq_printf(m, "level:\t\t%d\n",
|
|
status & TP_EC_AUDIO_LVL_MSK);
|
|
|
|
seq_printf(m, "mute:\t\t%s\n",
|
|
onoff(status, TP_EC_AUDIO_MUTESW));
|
|
|
|
if (volume_control_allowed) {
|
|
seq_printf(m, "commands:\tunmute, mute\n");
|
|
if (!tp_features.mixer_no_level_control) {
|
|
seq_printf(m, "commands:\tup, down\n");
|
|
seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n",
|
|
TP_EC_VOLUME_MAX);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int volume_write(char *buf)
|
|
{
|
|
u8 s;
|
|
u8 new_level, new_mute;
|
|
int l;
|
|
char *cmd;
|
|
int rc;
|
|
|
|
/*
|
|
* We do allow volume control at driver startup, so that the
|
|
* user can set initial state through the volume=... parameter hack.
|
|
*/
|
|
if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) {
|
|
if (unlikely(!tp_warned.volume_ctrl_forbidden)) {
|
|
tp_warned.volume_ctrl_forbidden = 1;
|
|
pr_notice("Console audio control in monitor mode, changes are not allowed\n");
|
|
pr_notice("Use the volume_control=1 module parameter to enable volume control\n");
|
|
}
|
|
return -EPERM;
|
|
}
|
|
|
|
rc = volume_get_status(&s);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
new_level = s & TP_EC_AUDIO_LVL_MSK;
|
|
new_mute = s & TP_EC_AUDIO_MUTESW_MSK;
|
|
|
|
while ((cmd = next_cmd(&buf))) {
|
|
if (!tp_features.mixer_no_level_control) {
|
|
if (strlencmp(cmd, "up") == 0) {
|
|
if (new_mute)
|
|
new_mute = 0;
|
|
else if (new_level < TP_EC_VOLUME_MAX)
|
|
new_level++;
|
|
continue;
|
|
} else if (strlencmp(cmd, "down") == 0) {
|
|
if (new_mute)
|
|
new_mute = 0;
|
|
else if (new_level > 0)
|
|
new_level--;
|
|
continue;
|
|
} else if (sscanf(cmd, "level %u", &l) == 1 &&
|
|
l >= 0 && l <= TP_EC_VOLUME_MAX) {
|
|
new_level = l;
|
|
continue;
|
|
}
|
|
}
|
|
if (strlencmp(cmd, "mute") == 0)
|
|
new_mute = TP_EC_AUDIO_MUTESW_MSK;
|
|
else if (strlencmp(cmd, "unmute") == 0)
|
|
new_mute = 0;
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (tp_features.mixer_no_level_control) {
|
|
tpacpi_disclose_usertask("procfs volume", "%smute\n",
|
|
new_mute ? "" : "un");
|
|
rc = volume_set_mute(!!new_mute);
|
|
} else {
|
|
tpacpi_disclose_usertask("procfs volume",
|
|
"%smute and set level to %d\n",
|
|
new_mute ? "" : "un", new_level);
|
|
rc = volume_set_status(new_mute | new_level);
|
|
}
|
|
volume_alsa_notify_change();
|
|
|
|
return (rc == -EINTR) ? -ERESTARTSYS : rc;
|
|
}
|
|
|
|
static struct ibm_struct volume_driver_data = {
|
|
.name = "volume",
|
|
.read = volume_read,
|
|
.write = volume_write,
|
|
.exit = volume_exit,
|
|
.suspend = volume_suspend,
|
|
.resume = volume_resume,
|
|
.shutdown = volume_shutdown,
|
|
};
|
|
|
|
#else /* !CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */
|
|
|
|
#define alsa_card NULL
|
|
|
|
static inline void volume_alsa_notify_change(void)
|
|
{
|
|
}
|
|
|
|
static int __init volume_init(struct ibm_init_struct *iibm)
|
|
{
|
|
pr_info("volume: disabled as there is no ALSA support in this kernel\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static struct ibm_struct volume_driver_data = {
|
|
.name = "volume",
|
|
};
|
|
|
|
#endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */
|
|
|
|
/*************************************************************************
|
|
* Fan subdriver
|
|
*/
|
|
|
|
/*
|
|
* FAN ACCESS MODES
|
|
*
|
|
* TPACPI_FAN_RD_ACPI_GFAN:
|
|
* ACPI GFAN method: returns fan level
|
|
*
|
|
* see TPACPI_FAN_WR_ACPI_SFAN
|
|
* EC 0x2f (HFSP) not available if GFAN exists
|
|
*
|
|
* TPACPI_FAN_WR_ACPI_SFAN:
|
|
* ACPI SFAN method: sets fan level, 0 (stop) to 7 (max)
|
|
*
|
|
* EC 0x2f (HFSP) might be available *for reading*, but do not use
|
|
* it for writing.
|
|
*
|
|
* TPACPI_FAN_WR_TPEC:
|
|
* ThinkPad EC register 0x2f (HFSP): fan control loop mode
|
|
* Supported on almost all ThinkPads
|
|
*
|
|
* Fan speed changes of any sort (including those caused by the
|
|
* disengaged mode) are usually done slowly by the firmware as the
|
|
* maximum amount of fan duty cycle change per second seems to be
|
|
* limited.
|
|
*
|
|
* Reading is not available if GFAN exists.
|
|
* Writing is not available if SFAN exists.
|
|
*
|
|
* Bits
|
|
* 7 automatic mode engaged;
|
|
* (default operation mode of the ThinkPad)
|
|
* fan level is ignored in this mode.
|
|
* 6 full speed mode (takes precedence over bit 7);
|
|
* not available on all thinkpads. May disable
|
|
* the tachometer while the fan controller ramps up
|
|
* the speed (which can take up to a few *minutes*).
|
|
* Speeds up fan to 100% duty-cycle, which is far above
|
|
* the standard RPM levels. It is not impossible that
|
|
* it could cause hardware damage.
|
|
* 5-3 unused in some models. Extra bits for fan level
|
|
* in others, but still useless as all values above
|
|
* 7 map to the same speed as level 7 in these models.
|
|
* 2-0 fan level (0..7 usually)
|
|
* 0x00 = stop
|
|
* 0x07 = max (set when temperatures critical)
|
|
* Some ThinkPads may have other levels, see
|
|
* TPACPI_FAN_WR_ACPI_FANS (X31/X40/X41)
|
|
*
|
|
* FIRMWARE BUG: on some models, EC 0x2f might not be initialized at
|
|
* boot. Apparently the EC does not initialize it, so unless ACPI DSDT
|
|
* does so, its initial value is meaningless (0x07).
|
|
*
|
|
* For firmware bugs, refer to:
|
|
* http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
|
|
*
|
|
* ----
|
|
*
|
|
* ThinkPad EC register 0x84 (LSB), 0x85 (MSB):
|
|
* Main fan tachometer reading (in RPM)
|
|
*
|
|
* This register is present on all ThinkPads with a new-style EC, and
|
|
* it is known not to be present on the A21m/e, and T22, as there is
|
|
* something else in offset 0x84 according to the ACPI DSDT. Other
|
|
* ThinkPads from this same time period (and earlier) probably lack the
|
|
* tachometer as well.
|
|
*
|
|
* Unfortunately a lot of ThinkPads with new-style ECs but whose firmware
|
|
* was never fixed by IBM to report the EC firmware version string
|
|
* probably support the tachometer (like the early X models), so
|
|
* detecting it is quite hard. We need more data to know for sure.
|
|
*
|
|
* FIRMWARE BUG: always read 0x84 first, otherwise incorrect readings
|
|
* might result.
|
|
*
|
|
* FIRMWARE BUG: may go stale while the EC is switching to full speed
|
|
* mode.
|
|
*
|
|
* For firmware bugs, refer to:
|
|
* http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
|
|
*
|
|
* ----
|
|
*
|
|
* ThinkPad EC register 0x31 bit 0 (only on select models)
|
|
*
|
|
* When bit 0 of EC register 0x31 is zero, the tachometer registers
|
|
* show the speed of the main fan. When bit 0 of EC register 0x31
|
|
* is one, the tachometer registers show the speed of the auxiliary
|
|
* fan.
|
|
*
|
|
* Fan control seems to affect both fans, regardless of the state
|
|
* of this bit.
|
|
*
|
|
* So far, only the firmware for the X60/X61 non-tablet versions
|
|
* seem to support this (firmware TP-7M).
|
|
*
|
|
* TPACPI_FAN_WR_ACPI_FANS:
|
|
* ThinkPad X31, X40, X41. Not available in the X60.
|
|
*
|
|
* FANS ACPI handle: takes three arguments: low speed, medium speed,
|
|
* high speed. ACPI DSDT seems to map these three speeds to levels
|
|
* as follows: STOP LOW LOW MED MED HIGH HIGH HIGH HIGH
|
|
* (this map is stored on FAN0..FAN8 as "0,1,1,2,2,3,3,3,3")
|
|
*
|
|
* The speeds are stored on handles
|
|
* (FANA:FAN9), (FANC:FANB), (FANE:FAND).
|
|
*
|
|
* There are three default speed sets, accessible as handles:
|
|
* FS1L,FS1M,FS1H; FS2L,FS2M,FS2H; FS3L,FS3M,FS3H
|
|
*
|
|
* ACPI DSDT switches which set is in use depending on various
|
|
* factors.
|
|
*
|
|
* TPACPI_FAN_WR_TPEC is also available and should be used to
|
|
* command the fan. The X31/X40/X41 seems to have 8 fan levels,
|
|
* but the ACPI tables just mention level 7.
|
|
*/
|
|
|
|
enum { /* Fan control constants */
|
|
fan_status_offset = 0x2f, /* EC register 0x2f */
|
|
fan_rpm_offset = 0x84, /* EC register 0x84: LSB, 0x85 MSB (RPM)
|
|
* 0x84 must be read before 0x85 */
|
|
fan_select_offset = 0x31, /* EC register 0x31 (Firmware 7M)
|
|
bit 0 selects which fan is active */
|
|
|
|
TP_EC_FAN_FULLSPEED = 0x40, /* EC fan mode: full speed */
|
|
TP_EC_FAN_AUTO = 0x80, /* EC fan mode: auto fan control */
|
|
|
|
TPACPI_FAN_LAST_LEVEL = 0x100, /* Use cached last-seen fan level */
|
|
};
|
|
|
|
enum fan_status_access_mode {
|
|
TPACPI_FAN_NONE = 0, /* No fan status or control */
|
|
TPACPI_FAN_RD_ACPI_GFAN, /* Use ACPI GFAN */
|
|
TPACPI_FAN_RD_TPEC, /* Use ACPI EC regs 0x2f, 0x84-0x85 */
|
|
};
|
|
|
|
enum fan_control_access_mode {
|
|
TPACPI_FAN_WR_NONE = 0, /* No fan control */
|
|
TPACPI_FAN_WR_ACPI_SFAN, /* Use ACPI SFAN */
|
|
TPACPI_FAN_WR_TPEC, /* Use ACPI EC reg 0x2f */
|
|
TPACPI_FAN_WR_ACPI_FANS, /* Use ACPI FANS and EC reg 0x2f */
|
|
};
|
|
|
|
enum fan_control_commands {
|
|
TPACPI_FAN_CMD_SPEED = 0x0001, /* speed command */
|
|
TPACPI_FAN_CMD_LEVEL = 0x0002, /* level command */
|
|
TPACPI_FAN_CMD_ENABLE = 0x0004, /* enable/disable cmd,
|
|
* and also watchdog cmd */
|
|
};
|
|
|
|
static bool fan_control_allowed;
|
|
|
|
static enum fan_status_access_mode fan_status_access_mode;
|
|
static enum fan_control_access_mode fan_control_access_mode;
|
|
static enum fan_control_commands fan_control_commands;
|
|
|
|
static u8 fan_control_initial_status;
|
|
static u8 fan_control_desired_level;
|
|
static u8 fan_control_resume_level;
|
|
static int fan_watchdog_maxinterval;
|
|
|
|
static struct mutex fan_mutex;
|
|
|
|
static void fan_watchdog_fire(struct work_struct *ignored);
|
|
static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire);
|
|
|
|
TPACPI_HANDLE(fans, ec, "FANS"); /* X31, X40, X41 */
|
|
TPACPI_HANDLE(gfan, ec, "GFAN", /* 570 */
|
|
"\\FSPD", /* 600e/x, 770e, 770x */
|
|
); /* all others */
|
|
TPACPI_HANDLE(sfan, ec, "SFAN", /* 570 */
|
|
"JFNS", /* 770x-JL */
|
|
); /* all others */
|
|
|
|
/*
|
|
* Unitialized HFSP quirk: ACPI DSDT and EC fail to initialize the
|
|
* HFSP register at boot, so it contains 0x07 but the Thinkpad could
|
|
* be in auto mode (0x80).
|
|
*
|
|
* This is corrected by any write to HFSP either by the driver, or
|
|
* by the firmware.
|
|
*
|
|
* We assume 0x07 really means auto mode while this quirk is active,
|
|
* as this is far more likely than the ThinkPad being in level 7,
|
|
* which is only used by the firmware during thermal emergencies.
|
|
*
|
|
* Enable for TP-1Y (T43), TP-78 (R51e), TP-76 (R52),
|
|
* TP-70 (T43, R52), which are known to be buggy.
|
|
*/
|
|
|
|
static void fan_quirk1_setup(void)
|
|
{
|
|
if (fan_control_initial_status == 0x07) {
|
|
pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n");
|
|
tp_features.fan_ctrl_status_undef = 1;
|
|
}
|
|
}
|
|
|
|
static void fan_quirk1_handle(u8 *fan_status)
|
|
{
|
|
if (unlikely(tp_features.fan_ctrl_status_undef)) {
|
|
if (*fan_status != fan_control_initial_status) {
|
|
/* something changed the HFSP regisnter since
|
|
* driver init time, so it is not undefined
|
|
* anymore */
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
} else {
|
|
/* Return most likely status. In fact, it
|
|
* might be the only possible status */
|
|
*fan_status = TP_EC_FAN_AUTO;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Select main fan on X60/X61, NOOP on others */
|
|
static bool fan_select_fan1(void)
|
|
{
|
|
if (tp_features.second_fan) {
|
|
u8 val;
|
|
|
|
if (ec_read(fan_select_offset, &val) < 0)
|
|
return false;
|
|
val &= 0xFEU;
|
|
if (ec_write(fan_select_offset, val) < 0)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* Select secondary fan on X60/X61 */
|
|
static bool fan_select_fan2(void)
|
|
{
|
|
u8 val;
|
|
|
|
if (!tp_features.second_fan)
|
|
return false;
|
|
|
|
if (ec_read(fan_select_offset, &val) < 0)
|
|
return false;
|
|
val |= 0x01U;
|
|
if (ec_write(fan_select_offset, val) < 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Call with fan_mutex held
|
|
*/
|
|
static void fan_update_desired_level(u8 status)
|
|
{
|
|
if ((status &
|
|
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
|
|
if (status > 7)
|
|
fan_control_desired_level = 7;
|
|
else
|
|
fan_control_desired_level = status;
|
|
}
|
|
}
|
|
|
|
static int fan_get_status(u8 *status)
|
|
{
|
|
u8 s;
|
|
|
|
/* TODO:
|
|
* Add TPACPI_FAN_RD_ACPI_FANS ? */
|
|
|
|
switch (fan_status_access_mode) {
|
|
case TPACPI_FAN_RD_ACPI_GFAN: {
|
|
/* 570, 600e/x, 770e, 770x */
|
|
int res;
|
|
|
|
if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d")))
|
|
return -EIO;
|
|
|
|
if (likely(status))
|
|
*status = res & 0x07;
|
|
|
|
break;
|
|
}
|
|
case TPACPI_FAN_RD_TPEC:
|
|
/* all except 570, 600e/x, 770e, 770x */
|
|
if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
|
|
return -EIO;
|
|
|
|
if (likely(status)) {
|
|
*status = s;
|
|
fan_quirk1_handle(status);
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_get_status_safe(u8 *status)
|
|
{
|
|
int rc;
|
|
u8 s;
|
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
|
return -ERESTARTSYS;
|
|
rc = fan_get_status(&s);
|
|
if (!rc)
|
|
fan_update_desired_level(s);
|
|
mutex_unlock(&fan_mutex);
|
|
|
|
if (rc)
|
|
return rc;
|
|
if (status)
|
|
*status = s;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_get_speed(unsigned int *speed)
|
|
{
|
|
u8 hi, lo;
|
|
|
|
switch (fan_status_access_mode) {
|
|
case TPACPI_FAN_RD_TPEC:
|
|
/* all except 570, 600e/x, 770e, 770x */
|
|
if (unlikely(!fan_select_fan1()))
|
|
return -EIO;
|
|
if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
|
|
!acpi_ec_read(fan_rpm_offset + 1, &hi)))
|
|
return -EIO;
|
|
|
|
if (likely(speed))
|
|
*speed = (hi << 8) | lo;
|
|
|
|
break;
|
|
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan2_get_speed(unsigned int *speed)
|
|
{
|
|
u8 hi, lo;
|
|
bool rc;
|
|
|
|
switch (fan_status_access_mode) {
|
|
case TPACPI_FAN_RD_TPEC:
|
|
/* all except 570, 600e/x, 770e, 770x */
|
|
if (unlikely(!fan_select_fan2()))
|
|
return -EIO;
|
|
rc = !acpi_ec_read(fan_rpm_offset, &lo) ||
|
|
!acpi_ec_read(fan_rpm_offset + 1, &hi);
|
|
fan_select_fan1(); /* play it safe */
|
|
if (rc)
|
|
return -EIO;
|
|
|
|
if (likely(speed))
|
|
*speed = (hi << 8) | lo;
|
|
|
|
break;
|
|
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_set_level(int level)
|
|
{
|
|
if (!fan_control_allowed)
|
|
return -EPERM;
|
|
|
|
switch (fan_control_access_mode) {
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
if (level >= 0 && level <= 7) {
|
|
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level))
|
|
return -EIO;
|
|
} else
|
|
return -EINVAL;
|
|
break;
|
|
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
case TPACPI_FAN_WR_TPEC:
|
|
if (!(level & TP_EC_FAN_AUTO) &&
|
|
!(level & TP_EC_FAN_FULLSPEED) &&
|
|
((level < 0) || (level > 7)))
|
|
return -EINVAL;
|
|
|
|
/* safety net should the EC not support AUTO
|
|
* or FULLSPEED mode bits and just ignore them */
|
|
if (level & TP_EC_FAN_FULLSPEED)
|
|
level |= 7; /* safety min speed 7 */
|
|
else if (level & TP_EC_FAN_AUTO)
|
|
level |= 4; /* safety min speed 4 */
|
|
|
|
if (!acpi_ec_write(fan_status_offset, level))
|
|
return -EIO;
|
|
else
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
break;
|
|
|
|
default:
|
|
return -ENXIO;
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_FAN,
|
|
"fan control: set fan control register to 0x%02x\n", level);
|
|
return 0;
|
|
}
|
|
|
|
static int fan_set_level_safe(int level)
|
|
{
|
|
int rc;
|
|
|
|
if (!fan_control_allowed)
|
|
return -EPERM;
|
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
if (level == TPACPI_FAN_LAST_LEVEL)
|
|
level = fan_control_desired_level;
|
|
|
|
rc = fan_set_level(level);
|
|
if (!rc)
|
|
fan_update_desired_level(level);
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int fan_set_enable(void)
|
|
{
|
|
u8 s;
|
|
int rc;
|
|
|
|
if (!fan_control_allowed)
|
|
return -EPERM;
|
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
switch (fan_control_access_mode) {
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
case TPACPI_FAN_WR_TPEC:
|
|
rc = fan_get_status(&s);
|
|
if (rc < 0)
|
|
break;
|
|
|
|
/* Don't go out of emergency fan mode */
|
|
if (s != 7) {
|
|
s &= 0x07;
|
|
s |= TP_EC_FAN_AUTO | 4; /* min fan speed 4 */
|
|
}
|
|
|
|
if (!acpi_ec_write(fan_status_offset, s))
|
|
rc = -EIO;
|
|
else {
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
rc = 0;
|
|
}
|
|
break;
|
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
rc = fan_get_status(&s);
|
|
if (rc < 0)
|
|
break;
|
|
|
|
s &= 0x07;
|
|
|
|
/* Set fan to at least level 4 */
|
|
s |= 4;
|
|
|
|
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s))
|
|
rc = -EIO;
|
|
else
|
|
rc = 0;
|
|
break;
|
|
|
|
default:
|
|
rc = -ENXIO;
|
|
}
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
|
|
if (!rc)
|
|
vdbg_printk(TPACPI_DBG_FAN,
|
|
"fan control: set fan control register to 0x%02x\n",
|
|
s);
|
|
return rc;
|
|
}
|
|
|
|
static int fan_set_disable(void)
|
|
{
|
|
int rc;
|
|
|
|
if (!fan_control_allowed)
|
|
return -EPERM;
|
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
rc = 0;
|
|
switch (fan_control_access_mode) {
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
case TPACPI_FAN_WR_TPEC:
|
|
if (!acpi_ec_write(fan_status_offset, 0x00))
|
|
rc = -EIO;
|
|
else {
|
|
fan_control_desired_level = 0;
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
}
|
|
break;
|
|
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00))
|
|
rc = -EIO;
|
|
else
|
|
fan_control_desired_level = 0;
|
|
break;
|
|
|
|
default:
|
|
rc = -ENXIO;
|
|
}
|
|
|
|
if (!rc)
|
|
vdbg_printk(TPACPI_DBG_FAN,
|
|
"fan control: set fan control register to 0\n");
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static int fan_set_speed(int speed)
|
|
{
|
|
int rc;
|
|
|
|
if (!fan_control_allowed)
|
|
return -EPERM;
|
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
rc = 0;
|
|
switch (fan_control_access_mode) {
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
if (speed >= 0 && speed <= 65535) {
|
|
if (!acpi_evalf(fans_handle, NULL, NULL, "vddd",
|
|
speed, speed, speed))
|
|
rc = -EIO;
|
|
} else
|
|
rc = -EINVAL;
|
|
break;
|
|
|
|
default:
|
|
rc = -ENXIO;
|
|
}
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
return rc;
|
|
}
|
|
|
|
static void fan_watchdog_reset(void)
|
|
{
|
|
if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
|
|
return;
|
|
|
|
if (fan_watchdog_maxinterval > 0 &&
|
|
tpacpi_lifecycle != TPACPI_LIFE_EXITING)
|
|
mod_delayed_work(tpacpi_wq, &fan_watchdog_task,
|
|
msecs_to_jiffies(fan_watchdog_maxinterval * 1000));
|
|
else
|
|
cancel_delayed_work(&fan_watchdog_task);
|
|
}
|
|
|
|
static void fan_watchdog_fire(struct work_struct *ignored)
|
|
{
|
|
int rc;
|
|
|
|
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
|
|
return;
|
|
|
|
pr_notice("fan watchdog: enabling fan\n");
|
|
rc = fan_set_enable();
|
|
if (rc < 0) {
|
|
pr_err("fan watchdog: error %d while enabling fan, will try again later...\n",
|
|
rc);
|
|
/* reschedule for later */
|
|
fan_watchdog_reset();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* SYSFS fan layout: hwmon compatible (device)
|
|
*
|
|
* pwm*_enable:
|
|
* 0: "disengaged" mode
|
|
* 1: manual mode
|
|
* 2: native EC "auto" mode (recommended, hardware default)
|
|
*
|
|
* pwm*: set speed in manual mode, ignored otherwise.
|
|
* 0 is level 0; 255 is level 7. Intermediate points done with linear
|
|
* interpolation.
|
|
*
|
|
* fan*_input: tachometer reading, RPM
|
|
*
|
|
*
|
|
* SYSFS fan layout: extensions
|
|
*
|
|
* fan_watchdog (driver):
|
|
* fan watchdog interval in seconds, 0 disables (default), max 120
|
|
*/
|
|
|
|
/* sysfs fan pwm1_enable ----------------------------------------------- */
|
|
static ssize_t fan_pwm1_enable_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res, mode;
|
|
u8 status;
|
|
|
|
res = fan_get_status_safe(&status);
|
|
if (res)
|
|
return res;
|
|
|
|
if (status & TP_EC_FAN_FULLSPEED) {
|
|
mode = 0;
|
|
} else if (status & TP_EC_FAN_AUTO) {
|
|
mode = 2;
|
|
} else
|
|
mode = 1;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%d\n", mode);
|
|
}
|
|
|
|
static ssize_t fan_pwm1_enable_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long t;
|
|
int res, level;
|
|
|
|
if (parse_strtoul(buf, 2, &t))
|
|
return -EINVAL;
|
|
|
|
tpacpi_disclose_usertask("hwmon pwm1_enable",
|
|
"set fan mode to %lu\n", t);
|
|
|
|
switch (t) {
|
|
case 0:
|
|
level = TP_EC_FAN_FULLSPEED;
|
|
break;
|
|
case 1:
|
|
level = TPACPI_FAN_LAST_LEVEL;
|
|
break;
|
|
case 2:
|
|
level = TP_EC_FAN_AUTO;
|
|
break;
|
|
case 3:
|
|
/* reserved for software-controlled auto mode */
|
|
return -ENOSYS;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
res = fan_set_level_safe(level);
|
|
if (res == -ENXIO)
|
|
return -EINVAL;
|
|
else if (res < 0)
|
|
return res;
|
|
|
|
fan_watchdog_reset();
|
|
|
|
return count;
|
|
}
|
|
|
|
static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
|
|
fan_pwm1_enable_show, fan_pwm1_enable_store);
|
|
|
|
/* sysfs fan pwm1 ------------------------------------------------------ */
|
|
static ssize_t fan_pwm1_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res;
|
|
u8 status;
|
|
|
|
res = fan_get_status_safe(&status);
|
|
if (res)
|
|
return res;
|
|
|
|
if ((status &
|
|
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
|
|
status = fan_control_desired_level;
|
|
|
|
if (status > 7)
|
|
status = 7;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", (status * 255) / 7);
|
|
}
|
|
|
|
static ssize_t fan_pwm1_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
unsigned long s;
|
|
int rc;
|
|
u8 status, newlevel;
|
|
|
|
if (parse_strtoul(buf, 255, &s))
|
|
return -EINVAL;
|
|
|
|
tpacpi_disclose_usertask("hwmon pwm1",
|
|
"set fan speed to %lu\n", s);
|
|
|
|
/* scale down from 0-255 to 0-7 */
|
|
newlevel = (s >> 5) & 0x07;
|
|
|
|
if (mutex_lock_killable(&fan_mutex))
|
|
return -ERESTARTSYS;
|
|
|
|
rc = fan_get_status(&status);
|
|
if (!rc && (status &
|
|
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
|
|
rc = fan_set_level(newlevel);
|
|
if (rc == -ENXIO)
|
|
rc = -EINVAL;
|
|
else if (!rc) {
|
|
fan_update_desired_level(newlevel);
|
|
fan_watchdog_reset();
|
|
}
|
|
}
|
|
|
|
mutex_unlock(&fan_mutex);
|
|
return (rc) ? rc : count;
|
|
}
|
|
|
|
static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store);
|
|
|
|
/* sysfs fan fan1_input ------------------------------------------------ */
|
|
static ssize_t fan_fan1_input_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res;
|
|
unsigned int speed;
|
|
|
|
res = fan_get_speed(&speed);
|
|
if (res < 0)
|
|
return res;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", speed);
|
|
}
|
|
|
|
static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL);
|
|
|
|
/* sysfs fan fan2_input ------------------------------------------------ */
|
|
static ssize_t fan_fan2_input_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
int res;
|
|
unsigned int speed;
|
|
|
|
res = fan2_get_speed(&speed);
|
|
if (res < 0)
|
|
return res;
|
|
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", speed);
|
|
}
|
|
|
|
static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL);
|
|
|
|
/* sysfs fan fan_watchdog (hwmon driver) ------------------------------- */
|
|
static ssize_t fan_watchdog_show(struct device_driver *drv, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "%u\n", fan_watchdog_maxinterval);
|
|
}
|
|
|
|
static ssize_t fan_watchdog_store(struct device_driver *drv, const char *buf,
|
|
size_t count)
|
|
{
|
|
unsigned long t;
|
|
|
|
if (parse_strtoul(buf, 120, &t))
|
|
return -EINVAL;
|
|
|
|
if (!fan_control_allowed)
|
|
return -EPERM;
|
|
|
|
fan_watchdog_maxinterval = t;
|
|
fan_watchdog_reset();
|
|
|
|
tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t);
|
|
|
|
return count;
|
|
}
|
|
static DRIVER_ATTR_RW(fan_watchdog);
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
static struct attribute *fan_attributes[] = {
|
|
&dev_attr_pwm1_enable.attr, &dev_attr_pwm1.attr,
|
|
&dev_attr_fan1_input.attr,
|
|
NULL, /* for fan2_input */
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group fan_attr_group = {
|
|
.attrs = fan_attributes,
|
|
};
|
|
|
|
#define TPACPI_FAN_Q1 0x0001 /* Unitialized HFSP */
|
|
#define TPACPI_FAN_2FAN 0x0002 /* EC 0x31 bit 0 selects fan2 */
|
|
|
|
static const struct tpacpi_quirk fan_quirk_table[] __initconst = {
|
|
TPACPI_QEC_IBM('1', 'Y', TPACPI_FAN_Q1),
|
|
TPACPI_QEC_IBM('7', '8', TPACPI_FAN_Q1),
|
|
TPACPI_QEC_IBM('7', '6', TPACPI_FAN_Q1),
|
|
TPACPI_QEC_IBM('7', '0', TPACPI_FAN_Q1),
|
|
TPACPI_QEC_LNV('7', 'M', TPACPI_FAN_2FAN),
|
|
TPACPI_Q_LNV('N', '1', TPACPI_FAN_2FAN),
|
|
};
|
|
|
|
static int __init fan_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int rc;
|
|
unsigned long quirks;
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
|
"initializing fan subdriver\n");
|
|
|
|
mutex_init(&fan_mutex);
|
|
fan_status_access_mode = TPACPI_FAN_NONE;
|
|
fan_control_access_mode = TPACPI_FAN_WR_NONE;
|
|
fan_control_commands = 0;
|
|
fan_watchdog_maxinterval = 0;
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
tp_features.second_fan = 0;
|
|
fan_control_desired_level = 7;
|
|
|
|
if (tpacpi_is_ibm()) {
|
|
TPACPI_ACPIHANDLE_INIT(fans);
|
|
TPACPI_ACPIHANDLE_INIT(gfan);
|
|
TPACPI_ACPIHANDLE_INIT(sfan);
|
|
}
|
|
|
|
quirks = tpacpi_check_quirks(fan_quirk_table,
|
|
ARRAY_SIZE(fan_quirk_table));
|
|
|
|
if (gfan_handle) {
|
|
/* 570, 600e/x, 770e, 770x */
|
|
fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
|
|
} else {
|
|
/* all other ThinkPads: note that even old-style
|
|
* ThinkPad ECs supports the fan control register */
|
|
if (likely(acpi_ec_read(fan_status_offset,
|
|
&fan_control_initial_status))) {
|
|
fan_status_access_mode = TPACPI_FAN_RD_TPEC;
|
|
if (quirks & TPACPI_FAN_Q1)
|
|
fan_quirk1_setup();
|
|
if (quirks & TPACPI_FAN_2FAN) {
|
|
tp_features.second_fan = 1;
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
|
"secondary fan support enabled\n");
|
|
}
|
|
} else {
|
|
pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if (sfan_handle) {
|
|
/* 570, 770x-JL */
|
|
fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN;
|
|
fan_control_commands |=
|
|
TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE;
|
|
} else {
|
|
if (!gfan_handle) {
|
|
/* gfan without sfan means no fan control */
|
|
/* all other models implement TP EC 0x2f control */
|
|
|
|
if (fans_handle) {
|
|
/* X31, X40, X41 */
|
|
fan_control_access_mode =
|
|
TPACPI_FAN_WR_ACPI_FANS;
|
|
fan_control_commands |=
|
|
TPACPI_FAN_CMD_SPEED |
|
|
TPACPI_FAN_CMD_LEVEL |
|
|
TPACPI_FAN_CMD_ENABLE;
|
|
} else {
|
|
fan_control_access_mode = TPACPI_FAN_WR_TPEC;
|
|
fan_control_commands |=
|
|
TPACPI_FAN_CMD_LEVEL |
|
|
TPACPI_FAN_CMD_ENABLE;
|
|
}
|
|
}
|
|
}
|
|
|
|
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
|
"fan is %s, modes %d, %d\n",
|
|
str_supported(fan_status_access_mode != TPACPI_FAN_NONE ||
|
|
fan_control_access_mode != TPACPI_FAN_WR_NONE),
|
|
fan_status_access_mode, fan_control_access_mode);
|
|
|
|
/* fan control master switch */
|
|
if (!fan_control_allowed) {
|
|
fan_control_access_mode = TPACPI_FAN_WR_NONE;
|
|
fan_control_commands = 0;
|
|
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
|
|
"fan control features disabled by parameter\n");
|
|
}
|
|
|
|
/* update fan_control_desired_level */
|
|
if (fan_status_access_mode != TPACPI_FAN_NONE)
|
|
fan_get_status_safe(NULL);
|
|
|
|
if (fan_status_access_mode != TPACPI_FAN_NONE ||
|
|
fan_control_access_mode != TPACPI_FAN_WR_NONE) {
|
|
if (tp_features.second_fan) {
|
|
/* attach second fan tachometer */
|
|
fan_attributes[ARRAY_SIZE(fan_attributes)-2] =
|
|
&dev_attr_fan2_input.attr;
|
|
}
|
|
rc = sysfs_create_group(&tpacpi_hwmon->kobj,
|
|
&fan_attr_group);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
rc = driver_create_file(&tpacpi_hwmon_pdriver.driver,
|
|
&driver_attr_fan_watchdog);
|
|
if (rc < 0) {
|
|
sysfs_remove_group(&tpacpi_hwmon->kobj,
|
|
&fan_attr_group);
|
|
return rc;
|
|
}
|
|
return 0;
|
|
} else
|
|
return 1;
|
|
}
|
|
|
|
static void fan_exit(void)
|
|
{
|
|
vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN,
|
|
"cancelling any pending fan watchdog tasks\n");
|
|
|
|
/* FIXME: can we really do this unconditionally? */
|
|
sysfs_remove_group(&tpacpi_hwmon->kobj, &fan_attr_group);
|
|
driver_remove_file(&tpacpi_hwmon_pdriver.driver,
|
|
&driver_attr_fan_watchdog);
|
|
|
|
cancel_delayed_work(&fan_watchdog_task);
|
|
flush_workqueue(tpacpi_wq);
|
|
}
|
|
|
|
static void fan_suspend(void)
|
|
{
|
|
int rc;
|
|
|
|
if (!fan_control_allowed)
|
|
return;
|
|
|
|
/* Store fan status in cache */
|
|
fan_control_resume_level = 0;
|
|
rc = fan_get_status_safe(&fan_control_resume_level);
|
|
if (rc < 0)
|
|
pr_notice("failed to read fan level for later restore during resume: %d\n",
|
|
rc);
|
|
|
|
/* if it is undefined, don't attempt to restore it.
|
|
* KEEP THIS LAST */
|
|
if (tp_features.fan_ctrl_status_undef)
|
|
fan_control_resume_level = 0;
|
|
}
|
|
|
|
static void fan_resume(void)
|
|
{
|
|
u8 current_level = 7;
|
|
bool do_set = false;
|
|
int rc;
|
|
|
|
/* DSDT *always* updates status on resume */
|
|
tp_features.fan_ctrl_status_undef = 0;
|
|
|
|
if (!fan_control_allowed ||
|
|
!fan_control_resume_level ||
|
|
(fan_get_status_safe(¤t_level) < 0))
|
|
return;
|
|
|
|
switch (fan_control_access_mode) {
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
/* never decrease fan level */
|
|
do_set = (fan_control_resume_level > current_level);
|
|
break;
|
|
case TPACPI_FAN_WR_ACPI_FANS:
|
|
case TPACPI_FAN_WR_TPEC:
|
|
/* never decrease fan level, scale is:
|
|
* TP_EC_FAN_FULLSPEED > 7 >= TP_EC_FAN_AUTO
|
|
*
|
|
* We expect the firmware to set either 7 or AUTO, but we
|
|
* handle FULLSPEED out of paranoia.
|
|
*
|
|
* So, we can safely only restore FULLSPEED or 7, anything
|
|
* else could slow the fan. Restoring AUTO is useless, at
|
|
* best that's exactly what the DSDT already set (it is the
|
|
* slower it uses).
|
|
*
|
|
* Always keep in mind that the DSDT *will* have set the
|
|
* fans to what the vendor supposes is the best level. We
|
|
* muck with it only to speed the fan up.
|
|
*/
|
|
if (fan_control_resume_level != 7 &&
|
|
!(fan_control_resume_level & TP_EC_FAN_FULLSPEED))
|
|
return;
|
|
else
|
|
do_set = !(current_level & TP_EC_FAN_FULLSPEED) &&
|
|
(current_level != fan_control_resume_level);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
if (do_set) {
|
|
pr_notice("restoring fan level to 0x%02x\n",
|
|
fan_control_resume_level);
|
|
rc = fan_set_level_safe(fan_control_resume_level);
|
|
if (rc < 0)
|
|
pr_notice("failed to restore fan level: %d\n", rc);
|
|
}
|
|
}
|
|
|
|
static int fan_read(struct seq_file *m)
|
|
{
|
|
int rc;
|
|
u8 status;
|
|
unsigned int speed = 0;
|
|
|
|
switch (fan_status_access_mode) {
|
|
case TPACPI_FAN_RD_ACPI_GFAN:
|
|
/* 570, 600e/x, 770e, 770x */
|
|
rc = fan_get_status_safe(&status);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
seq_printf(m, "status:\t\t%s\n"
|
|
"level:\t\t%d\n",
|
|
(status != 0) ? "enabled" : "disabled", status);
|
|
break;
|
|
|
|
case TPACPI_FAN_RD_TPEC:
|
|
/* all except 570, 600e/x, 770e, 770x */
|
|
rc = fan_get_status_safe(&status);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
seq_printf(m, "status:\t\t%s\n",
|
|
(status != 0) ? "enabled" : "disabled");
|
|
|
|
rc = fan_get_speed(&speed);
|
|
if (rc < 0)
|
|
return rc;
|
|
|
|
seq_printf(m, "speed:\t\t%d\n", speed);
|
|
|
|
if (status & TP_EC_FAN_FULLSPEED)
|
|
/* Disengaged mode takes precedence */
|
|
seq_printf(m, "level:\t\tdisengaged\n");
|
|
else if (status & TP_EC_FAN_AUTO)
|
|
seq_printf(m, "level:\t\tauto\n");
|
|
else
|
|
seq_printf(m, "level:\t\t%d\n", status);
|
|
break;
|
|
|
|
case TPACPI_FAN_NONE:
|
|
default:
|
|
seq_printf(m, "status:\t\tnot supported\n");
|
|
}
|
|
|
|
if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) {
|
|
seq_printf(m, "commands:\tlevel <level>");
|
|
|
|
switch (fan_control_access_mode) {
|
|
case TPACPI_FAN_WR_ACPI_SFAN:
|
|
seq_printf(m, " (<level> is 0-7)\n");
|
|
break;
|
|
|
|
default:
|
|
seq_printf(m, " (<level> is 0-7, auto, disengaged, full-speed)\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
|
|
seq_printf(m, "commands:\tenable, disable\n"
|
|
"commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n");
|
|
|
|
if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
|
|
seq_printf(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int fan_write_cmd_level(const char *cmd, int *rc)
|
|
{
|
|
int level;
|
|
|
|
if (strlencmp(cmd, "level auto") == 0)
|
|
level = TP_EC_FAN_AUTO;
|
|
else if ((strlencmp(cmd, "level disengaged") == 0) |
|
|
(strlencmp(cmd, "level full-speed") == 0))
|
|
level = TP_EC_FAN_FULLSPEED;
|
|
else if (sscanf(cmd, "level %d", &level) != 1)
|
|
return 0;
|
|
|
|
*rc = fan_set_level_safe(level);
|
|
if (*rc == -ENXIO)
|
|
pr_err("level command accepted for unsupported access mode %d\n",
|
|
fan_control_access_mode);
|
|
else if (!*rc)
|
|
tpacpi_disclose_usertask("procfs fan",
|
|
"set level to %d\n", level);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int fan_write_cmd_enable(const char *cmd, int *rc)
|
|
{
|
|
if (strlencmp(cmd, "enable") != 0)
|
|
return 0;
|
|
|
|
*rc = fan_set_enable();
|
|
if (*rc == -ENXIO)
|
|
pr_err("enable command accepted for unsupported access mode %d\n",
|
|
fan_control_access_mode);
|
|
else if (!*rc)
|
|
tpacpi_disclose_usertask("procfs fan", "enable\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int fan_write_cmd_disable(const char *cmd, int *rc)
|
|
{
|
|
if (strlencmp(cmd, "disable") != 0)
|
|
return 0;
|
|
|
|
*rc = fan_set_disable();
|
|
if (*rc == -ENXIO)
|
|
pr_err("disable command accepted for unsupported access mode %d\n",
|
|
fan_control_access_mode);
|
|
else if (!*rc)
|
|
tpacpi_disclose_usertask("procfs fan", "disable\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int fan_write_cmd_speed(const char *cmd, int *rc)
|
|
{
|
|
int speed;
|
|
|
|
/* TODO:
|
|
* Support speed <low> <medium> <high> ? */
|
|
|
|
if (sscanf(cmd, "speed %d", &speed) != 1)
|
|
return 0;
|
|
|
|
*rc = fan_set_speed(speed);
|
|
if (*rc == -ENXIO)
|
|
pr_err("speed command accepted for unsupported access mode %d\n",
|
|
fan_control_access_mode);
|
|
else if (!*rc)
|
|
tpacpi_disclose_usertask("procfs fan",
|
|
"set speed to %d\n", speed);
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int fan_write_cmd_watchdog(const char *cmd, int *rc)
|
|
{
|
|
int interval;
|
|
|
|
if (sscanf(cmd, "watchdog %d", &interval) != 1)
|
|
return 0;
|
|
|
|
if (interval < 0 || interval > 120)
|
|
*rc = -EINVAL;
|
|
else {
|
|
fan_watchdog_maxinterval = interval;
|
|
tpacpi_disclose_usertask("procfs fan",
|
|
"set watchdog timer to %d\n",
|
|
interval);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int fan_write(char *buf)
|
|
{
|
|
char *cmd;
|
|
int rc = 0;
|
|
|
|
while (!rc && (cmd = next_cmd(&buf))) {
|
|
if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) &&
|
|
fan_write_cmd_level(cmd, &rc)) &&
|
|
!((fan_control_commands & TPACPI_FAN_CMD_ENABLE) &&
|
|
(fan_write_cmd_enable(cmd, &rc) ||
|
|
fan_write_cmd_disable(cmd, &rc) ||
|
|
fan_write_cmd_watchdog(cmd, &rc))) &&
|
|
!((fan_control_commands & TPACPI_FAN_CMD_SPEED) &&
|
|
fan_write_cmd_speed(cmd, &rc))
|
|
)
|
|
rc = -EINVAL;
|
|
else if (!rc)
|
|
fan_watchdog_reset();
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static struct ibm_struct fan_driver_data = {
|
|
.name = "fan",
|
|
.read = fan_read,
|
|
.write = fan_write,
|
|
.exit = fan_exit,
|
|
.suspend = fan_suspend,
|
|
.resume = fan_resume,
|
|
};
|
|
|
|
/*************************************************************************
|
|
* Mute LED subdriver
|
|
*/
|
|
|
|
#define TPACPI_LED_MAX 2
|
|
|
|
struct tp_led_table {
|
|
acpi_string name;
|
|
int on_value;
|
|
int off_value;
|
|
int state;
|
|
};
|
|
|
|
static struct tp_led_table led_tables[TPACPI_LED_MAX] = {
|
|
[LED_AUDIO_MUTE] = {
|
|
.name = "SSMS",
|
|
.on_value = 1,
|
|
.off_value = 0,
|
|
},
|
|
[LED_AUDIO_MICMUTE] = {
|
|
.name = "MMTS",
|
|
.on_value = 2,
|
|
.off_value = 0,
|
|
},
|
|
};
|
|
|
|
static int mute_led_on_off(struct tp_led_table *t, bool state)
|
|
{
|
|
acpi_handle temp;
|
|
int output;
|
|
|
|
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) {
|
|
pr_warn("Thinkpad ACPI has no %s interface.\n", t->name);
|
|
return -EIO;
|
|
}
|
|
|
|
if (!acpi_evalf(hkey_handle, &output, t->name, "dd",
|
|
state ? t->on_value : t->off_value))
|
|
return -EIO;
|
|
|
|
t->state = state;
|
|
return state;
|
|
}
|
|
|
|
static int tpacpi_led_set(int whichled, bool on)
|
|
{
|
|
struct tp_led_table *t;
|
|
|
|
t = &led_tables[whichled];
|
|
if (t->state < 0 || t->state == on)
|
|
return t->state;
|
|
return mute_led_on_off(t, on);
|
|
}
|
|
|
|
static int tpacpi_led_mute_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
return tpacpi_led_set(LED_AUDIO_MUTE, brightness != LED_OFF);
|
|
}
|
|
|
|
static int tpacpi_led_micmute_set(struct led_classdev *led_cdev,
|
|
enum led_brightness brightness)
|
|
{
|
|
return tpacpi_led_set(LED_AUDIO_MICMUTE, brightness != LED_OFF);
|
|
}
|
|
|
|
static struct led_classdev mute_led_cdev[TPACPI_LED_MAX] = {
|
|
[LED_AUDIO_MUTE] = {
|
|
.name = "platform::mute",
|
|
.max_brightness = 1,
|
|
.brightness_set_blocking = tpacpi_led_mute_set,
|
|
.default_trigger = "audio-mute",
|
|
},
|
|
[LED_AUDIO_MICMUTE] = {
|
|
.name = "platform::micmute",
|
|
.max_brightness = 1,
|
|
.brightness_set_blocking = tpacpi_led_micmute_set,
|
|
.default_trigger = "audio-micmute",
|
|
},
|
|
};
|
|
|
|
static int mute_led_init(struct ibm_init_struct *iibm)
|
|
{
|
|
acpi_handle temp;
|
|
int i, err;
|
|
|
|
for (i = 0; i < TPACPI_LED_MAX; i++) {
|
|
struct tp_led_table *t = &led_tables[i];
|
|
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) {
|
|
t->state = -ENODEV;
|
|
continue;
|
|
}
|
|
|
|
mute_led_cdev[i].brightness = ledtrig_audio_get(i);
|
|
err = led_classdev_register(&tpacpi_pdev->dev, &mute_led_cdev[i]);
|
|
if (err < 0) {
|
|
while (i--) {
|
|
if (led_tables[i].state >= 0)
|
|
led_classdev_unregister(&mute_led_cdev[i]);
|
|
}
|
|
return err;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void mute_led_exit(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < TPACPI_LED_MAX; i++) {
|
|
if (led_tables[i].state >= 0) {
|
|
led_classdev_unregister(&mute_led_cdev[i]);
|
|
tpacpi_led_set(i, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void mute_led_resume(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < TPACPI_LED_MAX; i++) {
|
|
struct tp_led_table *t = &led_tables[i];
|
|
if (t->state >= 0)
|
|
mute_led_on_off(t, t->state);
|
|
}
|
|
}
|
|
|
|
static struct ibm_struct mute_led_driver_data = {
|
|
.name = "mute_led",
|
|
.exit = mute_led_exit,
|
|
.resume = mute_led_resume,
|
|
};
|
|
|
|
/*
|
|
* Battery Wear Control Driver
|
|
* Contact: Ognjen Galic <smclt30p@gmail.com>
|
|
*/
|
|
|
|
/* Metadata */
|
|
|
|
#define GET_START "BCTG"
|
|
#define SET_START "BCCS"
|
|
#define GET_STOP "BCSG"
|
|
#define SET_STOP "BCSS"
|
|
|
|
#define START_ATTR "charge_start_threshold"
|
|
#define STOP_ATTR "charge_stop_threshold"
|
|
|
|
enum {
|
|
BAT_ANY = 0,
|
|
BAT_PRIMARY = 1,
|
|
BAT_SECONDARY = 2
|
|
};
|
|
|
|
enum {
|
|
/* Error condition bit */
|
|
METHOD_ERR = BIT(31),
|
|
};
|
|
|
|
enum {
|
|
/* This is used in the get/set helpers */
|
|
THRESHOLD_START,
|
|
THRESHOLD_STOP,
|
|
};
|
|
|
|
struct tpacpi_battery_data {
|
|
int charge_start;
|
|
int start_support;
|
|
int charge_stop;
|
|
int stop_support;
|
|
};
|
|
|
|
struct tpacpi_battery_driver_data {
|
|
struct tpacpi_battery_data batteries[3];
|
|
int individual_addressing;
|
|
};
|
|
|
|
static struct tpacpi_battery_driver_data battery_info;
|
|
|
|
/* ACPI helpers/functions/probes */
|
|
|
|
/**
|
|
* This evaluates a ACPI method call specific to the battery
|
|
* ACPI extension. The specifics are that an error is marked
|
|
* in the 32rd bit of the response, so we just check that here.
|
|
*/
|
|
static acpi_status tpacpi_battery_acpi_eval(char *method, int *ret, int param)
|
|
{
|
|
int response;
|
|
|
|
if (!acpi_evalf(hkey_handle, &response, method, "dd", param)) {
|
|
acpi_handle_err(hkey_handle, "%s: evaluate failed", method);
|
|
return AE_ERROR;
|
|
}
|
|
if (response & METHOD_ERR) {
|
|
acpi_handle_err(hkey_handle,
|
|
"%s evaluated but flagged as error", method);
|
|
return AE_ERROR;
|
|
}
|
|
*ret = response;
|
|
return AE_OK;
|
|
}
|
|
|
|
static int tpacpi_battery_get(int what, int battery, int *ret)
|
|
{
|
|
switch (what) {
|
|
case THRESHOLD_START:
|
|
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery))
|
|
return -ENODEV;
|
|
|
|
/* The value is in the low 8 bits of the response */
|
|
*ret = *ret & 0xFF;
|
|
return 0;
|
|
case THRESHOLD_STOP:
|
|
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery))
|
|
return -ENODEV;
|
|
/* Value is in lower 8 bits */
|
|
*ret = *ret & 0xFF;
|
|
/*
|
|
* On the stop value, if we return 0 that
|
|
* does not make any sense. 0 means Default, which
|
|
* means that charging stops at 100%, so we return
|
|
* that.
|
|
*/
|
|
if (*ret == 0)
|
|
*ret = 100;
|
|
return 0;
|
|
default:
|
|
pr_crit("wrong parameter: %d", what);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int tpacpi_battery_set(int what, int battery, int value)
|
|
{
|
|
int param, ret;
|
|
/* The first 8 bits are the value of the threshold */
|
|
param = value;
|
|
/* The battery ID is in bits 8-9, 2 bits */
|
|
param |= battery << 8;
|
|
|
|
switch (what) {
|
|
case THRESHOLD_START:
|
|
if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_START, &ret, param)) {
|
|
pr_err("failed to set charge threshold on battery %d",
|
|
battery);
|
|
return -ENODEV;
|
|
}
|
|
return 0;
|
|
case THRESHOLD_STOP:
|
|
if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_STOP, &ret, param)) {
|
|
pr_err("failed to set stop threshold: %d", battery);
|
|
return -ENODEV;
|
|
}
|
|
return 0;
|
|
default:
|
|
pr_crit("wrong parameter: %d", what);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int tpacpi_battery_probe(int battery)
|
|
{
|
|
int ret = 0;
|
|
|
|
memset(&battery_info.batteries[battery], 0,
|
|
sizeof(battery_info.batteries[battery]));
|
|
|
|
/*
|
|
* 1) Get the current start threshold
|
|
* 2) Check for support
|
|
* 3) Get the current stop threshold
|
|
* 4) Check for support
|
|
*/
|
|
if (acpi_has_method(hkey_handle, GET_START)) {
|
|
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, &ret, battery)) {
|
|
pr_err("Error probing battery %d\n", battery);
|
|
return -ENODEV;
|
|
}
|
|
/* Individual addressing is in bit 9 */
|
|
if (ret & BIT(9))
|
|
battery_info.individual_addressing = true;
|
|
/* Support is marked in bit 8 */
|
|
if (ret & BIT(8))
|
|
battery_info.batteries[battery].start_support = 1;
|
|
else
|
|
return -ENODEV;
|
|
if (tpacpi_battery_get(THRESHOLD_START, battery,
|
|
&battery_info.batteries[battery].charge_start)) {
|
|
pr_err("Error probing battery %d\n", battery);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
if (acpi_has_method(hkey_handle, GET_STOP)) {
|
|
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, &ret, battery)) {
|
|
pr_err("Error probing battery stop; %d\n", battery);
|
|
return -ENODEV;
|
|
}
|
|
/* Support is marked in bit 8 */
|
|
if (ret & BIT(8))
|
|
battery_info.batteries[battery].stop_support = 1;
|
|
else
|
|
return -ENODEV;
|
|
if (tpacpi_battery_get(THRESHOLD_STOP, battery,
|
|
&battery_info.batteries[battery].charge_stop)) {
|
|
pr_err("Error probing battery stop: %d\n", battery);
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
pr_info("battery %d registered (start %d, stop %d)",
|
|
battery,
|
|
battery_info.batteries[battery].charge_start,
|
|
battery_info.batteries[battery].charge_stop);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* General helper functions */
|
|
|
|
static int tpacpi_battery_get_id(const char *battery_name)
|
|
{
|
|
|
|
if (strcmp(battery_name, "BAT0") == 0 ||
|
|
tp_features.battery_force_primary)
|
|
return BAT_PRIMARY;
|
|
if (strcmp(battery_name, "BAT1") == 0)
|
|
return BAT_SECONDARY;
|
|
/*
|
|
* If for some reason the battery is not BAT0 nor is it
|
|
* BAT1, we will assume it's the default, first battery,
|
|
* AKA primary.
|
|
*/
|
|
pr_warn("unknown battery %s, assuming primary", battery_name);
|
|
return BAT_PRIMARY;
|
|
}
|
|
|
|
/* sysfs interface */
|
|
|
|
static ssize_t tpacpi_battery_store(int what,
|
|
struct device *dev,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct power_supply *supply = to_power_supply(dev);
|
|
unsigned long value;
|
|
int battery, rval;
|
|
/*
|
|
* Some systems have support for more than
|
|
* one battery. If that is the case,
|
|
* tpacpi_battery_probe marked that addressing
|
|
* them individually is supported, so we do that
|
|
* based on the device struct.
|
|
*
|
|
* On systems that are not supported, we assume
|
|
* the primary as most of the ACPI calls fail
|
|
* with "Any Battery" as the parameter.
|
|
*/
|
|
if (battery_info.individual_addressing)
|
|
/* BAT_PRIMARY or BAT_SECONDARY */
|
|
battery = tpacpi_battery_get_id(supply->desc->name);
|
|
else
|
|
battery = BAT_PRIMARY;
|
|
|
|
rval = kstrtoul(buf, 10, &value);
|
|
if (rval)
|
|
return rval;
|
|
|
|
switch (what) {
|
|
case THRESHOLD_START:
|
|
if (!battery_info.batteries[battery].start_support)
|
|
return -ENODEV;
|
|
/* valid values are [0, 99] */
|
|
if (value < 0 || value > 99)
|
|
return -EINVAL;
|
|
if (value > battery_info.batteries[battery].charge_stop)
|
|
return -EINVAL;
|
|
if (tpacpi_battery_set(THRESHOLD_START, battery, value))
|
|
return -ENODEV;
|
|
battery_info.batteries[battery].charge_start = value;
|
|
return count;
|
|
|
|
case THRESHOLD_STOP:
|
|
if (!battery_info.batteries[battery].stop_support)
|
|
return -ENODEV;
|
|
/* valid values are [1, 100] */
|
|
if (value < 1 || value > 100)
|
|
return -EINVAL;
|
|
if (value < battery_info.batteries[battery].charge_start)
|
|
return -EINVAL;
|
|
battery_info.batteries[battery].charge_stop = value;
|
|
/*
|
|
* When 100 is passed to stop, we need to flip
|
|
* it to 0 as that the EC understands that as
|
|
* "Default", which will charge to 100%
|
|
*/
|
|
if (value == 100)
|
|
value = 0;
|
|
if (tpacpi_battery_set(THRESHOLD_STOP, battery, value))
|
|
return -EINVAL;
|
|
return count;
|
|
default:
|
|
pr_crit("Wrong parameter: %d", what);
|
|
return -EINVAL;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static ssize_t tpacpi_battery_show(int what,
|
|
struct device *dev,
|
|
char *buf)
|
|
{
|
|
struct power_supply *supply = to_power_supply(dev);
|
|
int ret, battery;
|
|
/*
|
|
* Some systems have support for more than
|
|
* one battery. If that is the case,
|
|
* tpacpi_battery_probe marked that addressing
|
|
* them individually is supported, so we;
|
|
* based on the device struct.
|
|
*
|
|
* On systems that are not supported, we assume
|
|
* the primary as most of the ACPI calls fail
|
|
* with "Any Battery" as the parameter.
|
|
*/
|
|
if (battery_info.individual_addressing)
|
|
/* BAT_PRIMARY or BAT_SECONDARY */
|
|
battery = tpacpi_battery_get_id(supply->desc->name);
|
|
else
|
|
battery = BAT_PRIMARY;
|
|
if (tpacpi_battery_get(what, battery, &ret))
|
|
return -ENODEV;
|
|
return sprintf(buf, "%d\n", ret);
|
|
}
|
|
|
|
static ssize_t charge_start_threshold_show(struct device *device,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return tpacpi_battery_show(THRESHOLD_START, device, buf);
|
|
}
|
|
|
|
static ssize_t charge_stop_threshold_show(struct device *device,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
return tpacpi_battery_show(THRESHOLD_STOP, device, buf);
|
|
}
|
|
|
|
static ssize_t charge_start_threshold_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
return tpacpi_battery_store(THRESHOLD_START, dev, buf, count);
|
|
}
|
|
|
|
static ssize_t charge_stop_threshold_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
return tpacpi_battery_store(THRESHOLD_STOP, dev, buf, count);
|
|
}
|
|
|
|
static DEVICE_ATTR_RW(charge_start_threshold);
|
|
static DEVICE_ATTR_RW(charge_stop_threshold);
|
|
|
|
static struct attribute *tpacpi_battery_attrs[] = {
|
|
&dev_attr_charge_start_threshold.attr,
|
|
&dev_attr_charge_stop_threshold.attr,
|
|
NULL,
|
|
};
|
|
|
|
ATTRIBUTE_GROUPS(tpacpi_battery);
|
|
|
|
/* ACPI battery hooking */
|
|
|
|
static int tpacpi_battery_add(struct power_supply *battery)
|
|
{
|
|
int batteryid = tpacpi_battery_get_id(battery->desc->name);
|
|
|
|
if (tpacpi_battery_probe(batteryid))
|
|
return -ENODEV;
|
|
if (device_add_groups(&battery->dev, tpacpi_battery_groups))
|
|
return -ENODEV;
|
|
return 0;
|
|
}
|
|
|
|
static int tpacpi_battery_remove(struct power_supply *battery)
|
|
{
|
|
device_remove_groups(&battery->dev, tpacpi_battery_groups);
|
|
return 0;
|
|
}
|
|
|
|
static struct acpi_battery_hook battery_hook = {
|
|
.add_battery = tpacpi_battery_add,
|
|
.remove_battery = tpacpi_battery_remove,
|
|
.name = "ThinkPad Battery Extension",
|
|
};
|
|
|
|
/* Subdriver init/exit */
|
|
|
|
static const struct tpacpi_quirk battery_quirk_table[] __initconst = {
|
|
/*
|
|
* Individual addressing is broken on models that expose the
|
|
* primary battery as BAT1.
|
|
*/
|
|
TPACPI_Q_LNV('J', '7', true), /* B5400 */
|
|
TPACPI_Q_LNV('J', 'I', true), /* Thinkpad 11e */
|
|
TPACPI_Q_LNV3('R', '0', 'B', true), /* Thinkpad 11e gen 3 */
|
|
TPACPI_Q_LNV3('R', '0', 'C', true), /* Thinkpad 13 */
|
|
TPACPI_Q_LNV3('R', '0', 'J', true), /* Thinkpad 13 gen 2 */
|
|
};
|
|
|
|
static int __init tpacpi_battery_init(struct ibm_init_struct *ibm)
|
|
{
|
|
memset(&battery_info, 0, sizeof(battery_info));
|
|
|
|
tp_features.battery_force_primary = tpacpi_check_quirks(
|
|
battery_quirk_table,
|
|
ARRAY_SIZE(battery_quirk_table));
|
|
|
|
battery_hook_register(&battery_hook);
|
|
return 0;
|
|
}
|
|
|
|
static void tpacpi_battery_exit(void)
|
|
{
|
|
battery_hook_unregister(&battery_hook);
|
|
}
|
|
|
|
static struct ibm_struct battery_driver_data = {
|
|
.name = "battery",
|
|
.exit = tpacpi_battery_exit,
|
|
};
|
|
|
|
/****************************************************************************
|
|
****************************************************************************
|
|
*
|
|
* Infrastructure
|
|
*
|
|
****************************************************************************
|
|
****************************************************************************/
|
|
|
|
/*
|
|
* HKEY event callout for other subdrivers go here
|
|
* (yes, it is ugly, but it is quick, safe, and gets the job done
|
|
*/
|
|
static void tpacpi_driver_event(const unsigned int hkey_event)
|
|
{
|
|
if (ibm_backlight_device) {
|
|
switch (hkey_event) {
|
|
case TP_HKEY_EV_BRGHT_UP:
|
|
case TP_HKEY_EV_BRGHT_DOWN:
|
|
tpacpi_brightness_notify_change();
|
|
}
|
|
}
|
|
if (alsa_card) {
|
|
switch (hkey_event) {
|
|
case TP_HKEY_EV_VOL_UP:
|
|
case TP_HKEY_EV_VOL_DOWN:
|
|
case TP_HKEY_EV_VOL_MUTE:
|
|
volume_alsa_notify_change();
|
|
}
|
|
}
|
|
if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) {
|
|
enum led_brightness brightness;
|
|
|
|
mutex_lock(&kbdlight_mutex);
|
|
|
|
/*
|
|
* Check the brightness actually changed, setting the brightness
|
|
* through kbdlight_set_level() also triggers this event.
|
|
*/
|
|
brightness = kbdlight_sysfs_get(NULL);
|
|
if (kbdlight_brightness != brightness) {
|
|
kbdlight_brightness = brightness;
|
|
led_classdev_notify_brightness_hw_changed(
|
|
&tpacpi_led_kbdlight.led_classdev, brightness);
|
|
}
|
|
|
|
mutex_unlock(&kbdlight_mutex);
|
|
}
|
|
}
|
|
|
|
static void hotkey_driver_event(const unsigned int scancode)
|
|
{
|
|
tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode);
|
|
}
|
|
|
|
/* --------------------------------------------------------------------- */
|
|
|
|
/* /proc support */
|
|
static struct proc_dir_entry *proc_dir;
|
|
|
|
/*
|
|
* Module and infrastructure proble, init and exit handling
|
|
*/
|
|
|
|
static bool force_load;
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
|
|
static const char * __init str_supported(int is_supported)
|
|
{
|
|
static char text_unsupported[] __initdata = "not supported";
|
|
|
|
return (is_supported) ? &text_unsupported[4] : &text_unsupported[0];
|
|
}
|
|
#endif /* CONFIG_THINKPAD_ACPI_DEBUG */
|
|
|
|
static void ibm_exit(struct ibm_struct *ibm)
|
|
{
|
|
dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name);
|
|
|
|
list_del_init(&ibm->all_drivers);
|
|
|
|
if (ibm->flags.acpi_notify_installed) {
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
"%s: acpi_remove_notify_handler\n", ibm->name);
|
|
BUG_ON(!ibm->acpi);
|
|
acpi_remove_notify_handler(*ibm->acpi->handle,
|
|
ibm->acpi->type,
|
|
dispatch_acpi_notify);
|
|
ibm->flags.acpi_notify_installed = 0;
|
|
}
|
|
|
|
if (ibm->flags.proc_created) {
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
"%s: remove_proc_entry\n", ibm->name);
|
|
remove_proc_entry(ibm->name, proc_dir);
|
|
ibm->flags.proc_created = 0;
|
|
}
|
|
|
|
if (ibm->flags.acpi_driver_registered) {
|
|
dbg_printk(TPACPI_DBG_EXIT,
|
|
"%s: acpi_bus_unregister_driver\n", ibm->name);
|
|
BUG_ON(!ibm->acpi);
|
|
acpi_bus_unregister_driver(ibm->acpi->driver);
|
|
kfree(ibm->acpi->driver);
|
|
ibm->acpi->driver = NULL;
|
|
ibm->flags.acpi_driver_registered = 0;
|
|
}
|
|
|
|
if (ibm->flags.init_called && ibm->exit) {
|
|
ibm->exit();
|
|
ibm->flags.init_called = 0;
|
|
}
|
|
|
|
dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name);
|
|
}
|
|
|
|
static int __init ibm_init(struct ibm_init_struct *iibm)
|
|
{
|
|
int ret;
|
|
struct ibm_struct *ibm = iibm->data;
|
|
struct proc_dir_entry *entry;
|
|
|
|
BUG_ON(ibm == NULL);
|
|
|
|
INIT_LIST_HEAD(&ibm->all_drivers);
|
|
|
|
if (ibm->flags.experimental && !experimental)
|
|
return 0;
|
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"probing for %s\n", ibm->name);
|
|
|
|
if (iibm->init) {
|
|
ret = iibm->init(iibm);
|
|
if (ret > 0)
|
|
return 0; /* probe failed */
|
|
if (ret)
|
|
return ret;
|
|
|
|
ibm->flags.init_called = 1;
|
|
}
|
|
|
|
if (ibm->acpi) {
|
|
if (ibm->acpi->hid) {
|
|
ret = register_tpacpi_subdriver(ibm);
|
|
if (ret)
|
|
goto err_out;
|
|
}
|
|
|
|
if (ibm->acpi->notify) {
|
|
ret = setup_acpi_notify(ibm);
|
|
if (ret == -ENODEV) {
|
|
pr_notice("disabling subdriver %s\n",
|
|
ibm->name);
|
|
ret = 0;
|
|
goto err_out;
|
|
}
|
|
if (ret < 0)
|
|
goto err_out;
|
|
}
|
|
}
|
|
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"%s installed\n", ibm->name);
|
|
|
|
if (ibm->read) {
|
|
umode_t mode = iibm->base_procfs_mode;
|
|
|
|
if (!mode)
|
|
mode = S_IRUGO;
|
|
if (ibm->write)
|
|
mode |= S_IWUSR;
|
|
entry = proc_create_data(ibm->name, mode, proc_dir,
|
|
&dispatch_proc_fops, ibm);
|
|
if (!entry) {
|
|
pr_err("unable to create proc entry %s\n", ibm->name);
|
|
ret = -ENODEV;
|
|
goto err_out;
|
|
}
|
|
ibm->flags.proc_created = 1;
|
|
}
|
|
|
|
list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers);
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
dbg_printk(TPACPI_DBG_INIT,
|
|
"%s: at error exit path with result %d\n",
|
|
ibm->name, ret);
|
|
|
|
ibm_exit(ibm);
|
|
return (ret < 0) ? ret : 0;
|
|
}
|
|
|
|
/* Probing */
|
|
|
|
static char __init tpacpi_parse_fw_id(const char * const s,
|
|
u32 *model, u16 *release)
|
|
{
|
|
int i;
|
|
|
|
if (!s || strlen(s) < 8)
|
|
goto invalid;
|
|
|
|
for (i = 0; i < 8; i++)
|
|
if (!((s[i] >= '0' && s[i] <= '9') ||
|
|
(s[i] >= 'A' && s[i] <= 'Z')))
|
|
goto invalid;
|
|
|
|
/*
|
|
* Most models: xxyTkkWW (#.##c)
|
|
* Ancient 570/600 and -SL lacks (#.##c)
|
|
*/
|
|
if (s[3] == 'T' || s[3] == 'N') {
|
|
*model = TPID(s[0], s[1]);
|
|
*release = TPVER(s[4], s[5]);
|
|
return s[2];
|
|
|
|
/* New models: xxxyTkkW (#.##c); T550 and some others */
|
|
} else if (s[4] == 'T' || s[4] == 'N') {
|
|
*model = TPID3(s[0], s[1], s[2]);
|
|
*release = TPVER(s[5], s[6]);
|
|
return s[3];
|
|
}
|
|
|
|
invalid:
|
|
return '\0';
|
|
}
|
|
|
|
static void find_new_ec_fwstr(const struct dmi_header *dm, void *private)
|
|
{
|
|
char *ec_fw_string = (char *) private;
|
|
const char *dmi_data = (const char *)dm;
|
|
/*
|
|
* ThinkPad Embedded Controller Program Table on newer models
|
|
*
|
|
* Offset | Name | Width | Description
|
|
* ----------------------------------------------------
|
|
* 0x00 | Type | BYTE | 0x8C
|
|
* 0x01 | Length | BYTE |
|
|
* 0x02 | Handle | WORD | Varies
|
|
* 0x04 | Signature | BYTEx6 | ASCII for "LENOVO"
|
|
* 0x0A | OEM struct offset | BYTE | 0x0B
|
|
* 0x0B | OEM struct number | BYTE | 0x07, for this structure
|
|
* 0x0C | OEM struct revision | BYTE | 0x01, for this format
|
|
* 0x0D | ECP version ID | STR ID |
|
|
* 0x0E | ECP release date | STR ID |
|
|
*/
|
|
|
|
/* Return if data structure not match */
|
|
if (dm->type != 140 || dm->length < 0x0F ||
|
|
memcmp(dmi_data + 4, "LENOVO", 6) != 0 ||
|
|
dmi_data[0x0A] != 0x0B || dmi_data[0x0B] != 0x07 ||
|
|
dmi_data[0x0C] != 0x01)
|
|
return;
|
|
|
|
/* fwstr is the first 8byte string */
|
|
strncpy(ec_fw_string, dmi_data + 0x0F, 8);
|
|
}
|
|
|
|
/* returns 0 - probe ok, or < 0 - probe error.
|
|
* Probe ok doesn't mean thinkpad found.
|
|
* On error, kfree() cleanup on tp->* is not performed, caller must do it */
|
|
static int __must_check __init get_thinkpad_model_data(
|
|
struct thinkpad_id_data *tp)
|
|
{
|
|
const struct dmi_device *dev = NULL;
|
|
char ec_fw_string[18] = {0};
|
|
char const *s;
|
|
char t;
|
|
|
|
if (!tp)
|
|
return -EINVAL;
|
|
|
|
memset(tp, 0, sizeof(*tp));
|
|
|
|
if (dmi_name_in_vendors("IBM"))
|
|
tp->vendor = PCI_VENDOR_ID_IBM;
|
|
else if (dmi_name_in_vendors("LENOVO"))
|
|
tp->vendor = PCI_VENDOR_ID_LENOVO;
|
|
else
|
|
return 0;
|
|
|
|
s = dmi_get_system_info(DMI_BIOS_VERSION);
|
|
tp->bios_version_str = kstrdup(s, GFP_KERNEL);
|
|
if (s && !tp->bios_version_str)
|
|
return -ENOMEM;
|
|
|
|
/* Really ancient ThinkPad 240X will fail this, which is fine */
|
|
t = tpacpi_parse_fw_id(tp->bios_version_str,
|
|
&tp->bios_model, &tp->bios_release);
|
|
if (t != 'E' && t != 'C')
|
|
return 0;
|
|
|
|
/*
|
|
* ThinkPad T23 or newer, A31 or newer, R50e or newer,
|
|
* X32 or newer, all Z series; Some models must have an
|
|
* up-to-date BIOS or they will not be detected.
|
|
*
|
|
* See http://thinkwiki.org/wiki/List_of_DMI_IDs
|
|
*/
|
|
while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
|
|
if (sscanf(dev->name,
|
|
"IBM ThinkPad Embedded Controller -[%17c",
|
|
ec_fw_string) == 1) {
|
|
ec_fw_string[sizeof(ec_fw_string) - 1] = 0;
|
|
ec_fw_string[strcspn(ec_fw_string, " ]")] = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Newer ThinkPads have different EC program info table */
|
|
if (!ec_fw_string[0])
|
|
dmi_walk(find_new_ec_fwstr, &ec_fw_string);
|
|
|
|
if (ec_fw_string[0]) {
|
|
tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL);
|
|
if (!tp->ec_version_str)
|
|
return -ENOMEM;
|
|
|
|
t = tpacpi_parse_fw_id(ec_fw_string,
|
|
&tp->ec_model, &tp->ec_release);
|
|
if (t != 'H') {
|
|
pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n",
|
|
ec_fw_string);
|
|
pr_notice("please report this to %s\n", TPACPI_MAIL);
|
|
}
|
|
}
|
|
|
|
s = dmi_get_system_info(DMI_PRODUCT_VERSION);
|
|
if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) {
|
|
tp->model_str = kstrdup(s, GFP_KERNEL);
|
|
if (!tp->model_str)
|
|
return -ENOMEM;
|
|
} else {
|
|
s = dmi_get_system_info(DMI_BIOS_VENDOR);
|
|
if (s && !(strncasecmp(s, "Lenovo", 6))) {
|
|
tp->model_str = kstrdup(s, GFP_KERNEL);
|
|
if (!tp->model_str)
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
s = dmi_get_system_info(DMI_PRODUCT_NAME);
|
|
tp->nummodel_str = kstrdup(s, GFP_KERNEL);
|
|
if (s && !tp->nummodel_str)
|
|
return -ENOMEM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __init probe_for_thinkpad(void)
|
|
{
|
|
int is_thinkpad;
|
|
|
|
if (acpi_disabled)
|
|
return -ENODEV;
|
|
|
|
/* It would be dangerous to run the driver in this case */
|
|
if (!tpacpi_is_ibm() && !tpacpi_is_lenovo())
|
|
return -ENODEV;
|
|
|
|
/*
|
|
* Non-ancient models have better DMI tagging, but very old models
|
|
* don't. tpacpi_is_fw_known() is a cheat to help in that case.
|
|
*/
|
|
is_thinkpad = (thinkpad_id.model_str != NULL) ||
|
|
(thinkpad_id.ec_model != 0) ||
|
|
tpacpi_is_fw_known();
|
|
|
|
/* The EC handler is required */
|
|
tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle);
|
|
if (!ec_handle) {
|
|
if (is_thinkpad)
|
|
pr_err("Not yet supported ThinkPad detected!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (!is_thinkpad && !force_load)
|
|
return -ENODEV;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __init thinkpad_acpi_init_banner(void)
|
|
{
|
|
pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
|
|
pr_info("%s\n", TPACPI_URL);
|
|
|
|
pr_info("ThinkPad BIOS %s, EC %s\n",
|
|
(thinkpad_id.bios_version_str) ?
|
|
thinkpad_id.bios_version_str : "unknown",
|
|
(thinkpad_id.ec_version_str) ?
|
|
thinkpad_id.ec_version_str : "unknown");
|
|
|
|
BUG_ON(!thinkpad_id.vendor);
|
|
|
|
if (thinkpad_id.model_str)
|
|
pr_info("%s %s, model %s\n",
|
|
(thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
|
|
"IBM" : ((thinkpad_id.vendor ==
|
|
PCI_VENDOR_ID_LENOVO) ?
|
|
"Lenovo" : "Unknown vendor"),
|
|
thinkpad_id.model_str,
|
|
(thinkpad_id.nummodel_str) ?
|
|
thinkpad_id.nummodel_str : "unknown");
|
|
}
|
|
|
|
/* Module init, exit, parameters */
|
|
|
|
static struct ibm_init_struct ibms_init[] __initdata = {
|
|
{
|
|
.data = &thinkpad_acpi_driver_data,
|
|
},
|
|
{
|
|
.init = hotkey_init,
|
|
.data = &hotkey_driver_data,
|
|
},
|
|
{
|
|
.init = bluetooth_init,
|
|
.data = &bluetooth_driver_data,
|
|
},
|
|
{
|
|
.init = wan_init,
|
|
.data = &wan_driver_data,
|
|
},
|
|
{
|
|
.init = uwb_init,
|
|
.data = &uwb_driver_data,
|
|
},
|
|
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
|
|
{
|
|
.init = video_init,
|
|
.base_procfs_mode = S_IRUSR,
|
|
.data = &video_driver_data,
|
|
},
|
|
#endif
|
|
{
|
|
.init = kbdlight_init,
|
|
.data = &kbdlight_driver_data,
|
|
},
|
|
{
|
|
.init = light_init,
|
|
.data = &light_driver_data,
|
|
},
|
|
{
|
|
.init = cmos_init,
|
|
.data = &cmos_driver_data,
|
|
},
|
|
{
|
|
.init = led_init,
|
|
.data = &led_driver_data,
|
|
},
|
|
{
|
|
.init = beep_init,
|
|
.data = &beep_driver_data,
|
|
},
|
|
{
|
|
.init = thermal_init,
|
|
.data = &thermal_driver_data,
|
|
},
|
|
{
|
|
.init = brightness_init,
|
|
.data = &brightness_driver_data,
|
|
},
|
|
{
|
|
.init = volume_init,
|
|
.data = &volume_driver_data,
|
|
},
|
|
{
|
|
.init = fan_init,
|
|
.data = &fan_driver_data,
|
|
},
|
|
{
|
|
.init = mute_led_init,
|
|
.data = &mute_led_driver_data,
|
|
},
|
|
{
|
|
.init = tpacpi_battery_init,
|
|
.data = &battery_driver_data,
|
|
},
|
|
};
|
|
|
|
static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
|
|
{
|
|
unsigned int i;
|
|
struct ibm_struct *ibm;
|
|
|
|
if (!kp || !kp->name || !val)
|
|
return -EINVAL;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
|
|
ibm = ibms_init[i].data;
|
|
WARN_ON(ibm == NULL);
|
|
|
|
if (!ibm || !ibm->name)
|
|
continue;
|
|
|
|
if (strcmp(ibm->name, kp->name) == 0 && ibm->write) {
|
|
if (strlen(val) > sizeof(ibms_init[i].param) - 2)
|
|
return -ENOSPC;
|
|
strcpy(ibms_init[i].param, val);
|
|
strcat(ibms_init[i].param, ",");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
module_param(experimental, int, 0444);
|
|
MODULE_PARM_DESC(experimental,
|
|
"Enables experimental features when non-zero");
|
|
|
|
module_param_named(debug, dbg_level, uint, 0);
|
|
MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
|
|
|
|
module_param(force_load, bool, 0444);
|
|
MODULE_PARM_DESC(force_load,
|
|
"Attempts to load the driver even on a mis-identified ThinkPad when true");
|
|
|
|
module_param_named(fan_control, fan_control_allowed, bool, 0444);
|
|
MODULE_PARM_DESC(fan_control,
|
|
"Enables setting fan parameters features when true");
|
|
|
|
module_param_named(brightness_mode, brightness_mode, uint, 0444);
|
|
MODULE_PARM_DESC(brightness_mode,
|
|
"Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM");
|
|
|
|
module_param(brightness_enable, uint, 0444);
|
|
MODULE_PARM_DESC(brightness_enable,
|
|
"Enables backlight control when 1, disables when 0");
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT
|
|
module_param_named(volume_mode, volume_mode, uint, 0444);
|
|
MODULE_PARM_DESC(volume_mode,
|
|
"Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM");
|
|
|
|
module_param_named(volume_capabilities, volume_capabilities, uint, 0444);
|
|
MODULE_PARM_DESC(volume_capabilities,
|
|
"Selects the mixer capabilities: 0=auto, 1=volume and mute, 2=mute only");
|
|
|
|
module_param_named(volume_control, volume_control_allowed, bool, 0444);
|
|
MODULE_PARM_DESC(volume_control,
|
|
"Enables software override for the console audio control when true");
|
|
|
|
module_param_named(software_mute, software_mute_requested, bool, 0444);
|
|
MODULE_PARM_DESC(software_mute,
|
|
"Request full software mute control");
|
|
|
|
/* ALSA module API parameters */
|
|
module_param_named(index, alsa_index, int, 0444);
|
|
MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer");
|
|
module_param_named(id, alsa_id, charp, 0444);
|
|
MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer");
|
|
module_param_named(enable, alsa_enable, bool, 0444);
|
|
MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer");
|
|
#endif /* CONFIG_THINKPAD_ACPI_ALSA_SUPPORT */
|
|
|
|
/* The module parameter can't be read back, that's why 0 is used here */
|
|
#define TPACPI_PARAM(feature) \
|
|
module_param_call(feature, set_ibm_param, NULL, NULL, 0); \
|
|
MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation")
|
|
|
|
TPACPI_PARAM(hotkey);
|
|
TPACPI_PARAM(bluetooth);
|
|
TPACPI_PARAM(video);
|
|
TPACPI_PARAM(light);
|
|
TPACPI_PARAM(cmos);
|
|
TPACPI_PARAM(led);
|
|
TPACPI_PARAM(beep);
|
|
TPACPI_PARAM(brightness);
|
|
TPACPI_PARAM(volume);
|
|
TPACPI_PARAM(fan);
|
|
|
|
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
|
|
module_param(dbg_wlswemul, uint, 0444);
|
|
MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation");
|
|
module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0);
|
|
MODULE_PARM_DESC(wlsw_state,
|
|
"Initial state of the emulated WLSW switch");
|
|
|
|
module_param(dbg_bluetoothemul, uint, 0444);
|
|
MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation");
|
|
module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0);
|
|
MODULE_PARM_DESC(bluetooth_state,
|
|
"Initial state of the emulated bluetooth switch");
|
|
|
|
module_param(dbg_wwanemul, uint, 0444);
|
|
MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation");
|
|
module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0);
|
|
MODULE_PARM_DESC(wwan_state,
|
|
"Initial state of the emulated WWAN switch");
|
|
|
|
module_param(dbg_uwbemul, uint, 0444);
|
|
MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation");
|
|
module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0);
|
|
MODULE_PARM_DESC(uwb_state,
|
|
"Initial state of the emulated UWB switch");
|
|
#endif
|
|
|
|
static void thinkpad_acpi_module_exit(void)
|
|
{
|
|
struct ibm_struct *ibm, *itmp;
|
|
|
|
tpacpi_lifecycle = TPACPI_LIFE_EXITING;
|
|
|
|
list_for_each_entry_safe_reverse(ibm, itmp,
|
|
&tpacpi_all_drivers,
|
|
all_drivers) {
|
|
ibm_exit(ibm);
|
|
}
|
|
|
|
dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
|
|
|
|
if (tpacpi_inputdev) {
|
|
if (tp_features.input_device_registered)
|
|
input_unregister_device(tpacpi_inputdev);
|
|
else
|
|
input_free_device(tpacpi_inputdev);
|
|
kfree(hotkey_keycode_map);
|
|
}
|
|
|
|
if (tpacpi_hwmon)
|
|
hwmon_device_unregister(tpacpi_hwmon);
|
|
|
|
if (tpacpi_sensors_pdev)
|
|
platform_device_unregister(tpacpi_sensors_pdev);
|
|
if (tpacpi_pdev)
|
|
platform_device_unregister(tpacpi_pdev);
|
|
|
|
if (tp_features.sensors_pdrv_attrs_registered)
|
|
tpacpi_remove_driver_attributes(&tpacpi_hwmon_pdriver.driver);
|
|
if (tp_features.platform_drv_attrs_registered)
|
|
tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver);
|
|
|
|
if (tp_features.sensors_pdrv_registered)
|
|
platform_driver_unregister(&tpacpi_hwmon_pdriver);
|
|
|
|
if (tp_features.platform_drv_registered)
|
|
platform_driver_unregister(&tpacpi_pdriver);
|
|
|
|
if (proc_dir)
|
|
remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir);
|
|
|
|
if (tpacpi_wq)
|
|
destroy_workqueue(tpacpi_wq);
|
|
|
|
kfree(thinkpad_id.bios_version_str);
|
|
kfree(thinkpad_id.ec_version_str);
|
|
kfree(thinkpad_id.model_str);
|
|
kfree(thinkpad_id.nummodel_str);
|
|
}
|
|
|
|
|
|
static int __init thinkpad_acpi_module_init(void)
|
|
{
|
|
int ret, i;
|
|
|
|
tpacpi_lifecycle = TPACPI_LIFE_INIT;
|
|
|
|
/* Driver-level probe */
|
|
|
|
ret = get_thinkpad_model_data(&thinkpad_id);
|
|
if (ret) {
|
|
pr_err("unable to get DMI data: %d\n", ret);
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
ret = probe_for_thinkpad();
|
|
if (ret) {
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
|
|
/* Driver initialization */
|
|
|
|
thinkpad_acpi_init_banner();
|
|
tpacpi_check_outdated_fw();
|
|
|
|
TPACPI_ACPIHANDLE_INIT(ecrd);
|
|
TPACPI_ACPIHANDLE_INIT(ecwr);
|
|
|
|
tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME);
|
|
if (!tpacpi_wq) {
|
|
thinkpad_acpi_module_exit();
|
|
return -ENOMEM;
|
|
}
|
|
|
|
proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir);
|
|
if (!proc_dir) {
|
|
pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n");
|
|
thinkpad_acpi_module_exit();
|
|
return -ENODEV;
|
|
}
|
|
|
|
ret = platform_driver_register(&tpacpi_pdriver);
|
|
if (ret) {
|
|
pr_err("unable to register main platform driver\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
tp_features.platform_drv_registered = 1;
|
|
|
|
ret = platform_driver_register(&tpacpi_hwmon_pdriver);
|
|
if (ret) {
|
|
pr_err("unable to register hwmon platform driver\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
tp_features.sensors_pdrv_registered = 1;
|
|
|
|
ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver);
|
|
if (!ret) {
|
|
tp_features.platform_drv_attrs_registered = 1;
|
|
ret = tpacpi_create_driver_attributes(
|
|
&tpacpi_hwmon_pdriver.driver);
|
|
}
|
|
if (ret) {
|
|
pr_err("unable to create sysfs driver attributes\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
tp_features.sensors_pdrv_attrs_registered = 1;
|
|
|
|
|
|
/* Device initialization */
|
|
tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, -1,
|
|
NULL, 0);
|
|
if (IS_ERR(tpacpi_pdev)) {
|
|
ret = PTR_ERR(tpacpi_pdev);
|
|
tpacpi_pdev = NULL;
|
|
pr_err("unable to register platform device\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
tpacpi_sensors_pdev = platform_device_register_simple(
|
|
TPACPI_HWMON_DRVR_NAME,
|
|
-1, NULL, 0);
|
|
if (IS_ERR(tpacpi_sensors_pdev)) {
|
|
ret = PTR_ERR(tpacpi_sensors_pdev);
|
|
tpacpi_sensors_pdev = NULL;
|
|
pr_err("unable to register hwmon platform device\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
tp_features.sensors_pdev_attrs_registered = 1;
|
|
tpacpi_hwmon = hwmon_device_register_with_groups(
|
|
&tpacpi_sensors_pdev->dev, TPACPI_NAME, NULL, NULL);
|
|
|
|
if (IS_ERR(tpacpi_hwmon)) {
|
|
ret = PTR_ERR(tpacpi_hwmon);
|
|
tpacpi_hwmon = NULL;
|
|
pr_err("unable to register hwmon device\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
mutex_init(&tpacpi_inputdev_send_mutex);
|
|
tpacpi_inputdev = input_allocate_device();
|
|
if (!tpacpi_inputdev) {
|
|
thinkpad_acpi_module_exit();
|
|
return -ENOMEM;
|
|
} else {
|
|
/* Prepare input device, but don't register */
|
|
tpacpi_inputdev->name = "ThinkPad Extra Buttons";
|
|
tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0";
|
|
tpacpi_inputdev->id.bustype = BUS_HOST;
|
|
tpacpi_inputdev->id.vendor = thinkpad_id.vendor;
|
|
tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
|
|
tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
|
|
tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev;
|
|
}
|
|
|
|
/* Init subdriver dependencies */
|
|
tpacpi_detect_brightness_capabilities();
|
|
|
|
/* Init subdrivers */
|
|
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
|
|
ret = ibm_init(&ibms_init[i]);
|
|
if (ret >= 0 && *ibms_init[i].param)
|
|
ret = ibms_init[i].data->write(ibms_init[i].param);
|
|
if (ret < 0) {
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
|
|
|
|
ret = input_register_device(tpacpi_inputdev);
|
|
if (ret < 0) {
|
|
pr_err("unable to register input device\n");
|
|
thinkpad_acpi_module_exit();
|
|
return ret;
|
|
} else {
|
|
tp_features.input_device_registered = 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
|
|
|
|
/*
|
|
* This will autoload the driver in almost every ThinkPad
|
|
* in widespread use.
|
|
*
|
|
* Only _VERY_ old models, like the 240, 240x and 570 lack
|
|
* the HKEY event interface.
|
|
*/
|
|
MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids);
|
|
|
|
/*
|
|
* DMI matching for module autoloading
|
|
*
|
|
* See http://thinkwiki.org/wiki/List_of_DMI_IDs
|
|
* See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
|
|
*
|
|
* Only models listed in thinkwiki will be supported, so add yours
|
|
* if it is not there yet.
|
|
*/
|
|
#define IBM_BIOS_MODULE_ALIAS(__type) \
|
|
MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
|
|
|
|
/* Ancient thinkpad BIOSes have to be identified by
|
|
* BIOS type or model number, and there are far less
|
|
* BIOS types than model numbers... */
|
|
IBM_BIOS_MODULE_ALIAS("I[MU]"); /* 570, 570e */
|
|
|
|
MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>");
|
|
MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>");
|
|
MODULE_DESCRIPTION(TPACPI_DESC);
|
|
MODULE_VERSION(TPACPI_VERSION);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(thinkpad_acpi_module_init);
|
|
module_exit(thinkpad_acpi_module_exit);
|