1578 lines
44 KiB
C
1578 lines
44 KiB
C
/*
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* drivers/hwmon/applesmc.c - driver for Apple's SMC (accelerometer, temperature
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* sensors, fan control, keyboard backlight control) used in Intel-based Apple
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* computers.
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*
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* Copyright (C) 2007 Nicolas Boichat <nicolas@boichat.ch>
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*
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* Based on hdaps.c driver:
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* Copyright (C) 2005 Robert Love <rml@novell.com>
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* Copyright (C) 2005 Jesper Juhl <jesper.juhl@gmail.com>
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*
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* Fan control based on smcFanControl:
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* Copyright (C) 2006 Hendrik Holtmann <holtmann@mac.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License v2 as published by the
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* Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/input-polldev.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/timer.h>
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#include <linux/dmi.h>
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#include <linux/mutex.h>
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#include <linux/hwmon-sysfs.h>
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#include <asm/io.h>
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#include <linux/leds.h>
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#include <linux/hwmon.h>
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#include <linux/workqueue.h>
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/* data port used by Apple SMC */
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#define APPLESMC_DATA_PORT 0x300
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/* command/status port used by Apple SMC */
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#define APPLESMC_CMD_PORT 0x304
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#define APPLESMC_NR_PORTS 32 /* 0x300-0x31f */
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#define APPLESMC_MAX_DATA_LENGTH 32
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#define APPLESMC_MIN_WAIT 0x0040
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#define APPLESMC_MAX_WAIT 0x8000
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#define APPLESMC_STATUS_MASK 0x0f
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#define APPLESMC_READ_CMD 0x10
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#define APPLESMC_WRITE_CMD 0x11
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#define APPLESMC_GET_KEY_BY_INDEX_CMD 0x12
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#define APPLESMC_GET_KEY_TYPE_CMD 0x13
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#define KEY_COUNT_KEY "#KEY" /* r-o ui32 */
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#define LIGHT_SENSOR_LEFT_KEY "ALV0" /* r-o {alv (6-10 bytes) */
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#define LIGHT_SENSOR_RIGHT_KEY "ALV1" /* r-o {alv (6-10 bytes) */
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#define BACKLIGHT_KEY "LKSB" /* w-o {lkb (2 bytes) */
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#define CLAMSHELL_KEY "MSLD" /* r-o ui8 (unused) */
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#define MOTION_SENSOR_X_KEY "MO_X" /* r-o sp78 (2 bytes) */
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#define MOTION_SENSOR_Y_KEY "MO_Y" /* r-o sp78 (2 bytes) */
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#define MOTION_SENSOR_Z_KEY "MO_Z" /* r-o sp78 (2 bytes) */
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#define MOTION_SENSOR_KEY "MOCN" /* r/w ui16 */
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#define FANS_COUNT "FNum" /* r-o ui8 */
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#define FANS_MANUAL "FS! " /* r-w ui16 */
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#define FAN_ACTUAL_SPEED "F0Ac" /* r-o fpe2 (2 bytes) */
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#define FAN_MIN_SPEED "F0Mn" /* r-o fpe2 (2 bytes) */
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#define FAN_MAX_SPEED "F0Mx" /* r-o fpe2 (2 bytes) */
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#define FAN_SAFE_SPEED "F0Sf" /* r-o fpe2 (2 bytes) */
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#define FAN_TARGET_SPEED "F0Tg" /* r-w fpe2 (2 bytes) */
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#define FAN_POSITION "F0ID" /* r-o char[16] */
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/*
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* Temperature sensors keys (sp78 - 2 bytes).
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*/
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static const char* temperature_sensors_sets[][36] = {
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/* Set 0: Macbook Pro */
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{ "TA0P", "TB0T", "TC0D", "TC0P", "TG0H", "TG0P", "TG0T", "Th0H",
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"Th1H", "Tm0P", "Ts0P", "Ts1P", NULL },
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/* Set 1: Macbook2 set */
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{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "TTF0", "Th0H",
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"Th0S", "Th1H", NULL },
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/* Set 2: Macbook set */
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{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TN1P", "Th0H", "Th0S",
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"Th1H", "Ts0P", NULL },
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/* Set 3: Macmini set */
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{ "TC0D", "TC0P", NULL },
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/* Set 4: Mac Pro (2 x Quad-Core) */
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{ "TA0P", "TCAG", "TCAH", "TCBG", "TCBH", "TC0C", "TC0D", "TC0P",
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"TC1C", "TC1D", "TC2C", "TC2D", "TC3C", "TC3D", "THTG", "TH0P",
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"TH1P", "TH2P", "TH3P", "TMAP", "TMAS", "TMBS", "TM0P", "TM0S",
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"TM1P", "TM1S", "TM2P", "TM2S", "TM3S", "TM8P", "TM8S", "TM9P",
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"TM9S", "TN0H", "TS0C", NULL },
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/* Set 5: iMac */
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{ "TC0D", "TA0P", "TG0P", "TG0D", "TG0H", "TH0P", "Tm0P", "TO0P",
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"Tp0C", NULL },
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/* Set 6: Macbook3 set */
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{ "TB0T", "TC0D", "TC0P", "TM0P", "TN0P", "TTF0", "TW0P", "Th0H",
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"Th0S", "Th1H", NULL },
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/* Set 7: Macbook Air */
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{ "TB0T", "TB1S", "TB1T", "TB2S", "TB2T", "TC0D", "TC0P", "TCFP",
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"TTF0", "TW0P", "Th0H", "Tp0P", "TpFP", "Ts0P", "Ts0S", NULL },
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/* Set 8: Macbook Pro 4,1 (Penryn) */
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{ "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P", "Th0H",
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"Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
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/* Set 9: Macbook Pro 3,1 (Santa Rosa) */
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{ "TALP", "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P",
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"Th0H", "Th1H", "Th2H", "Tm0P", "Ts0P", NULL },
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/* Set 10: iMac 5,1 */
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{ "TA0P", "TC0D", "TC0P", "TG0D", "TH0P", "TO0P", "Tm0P", NULL },
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/* Set 11: Macbook 5,1 */
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{ "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0P", "TN0D", "TN0P",
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"TTF0", "Th0H", "Th1H", "ThFH", "Ts0P", "Ts0S", NULL },
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/* Set 12: Macbook Pro 5,1 */
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{ "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0F", "TC0P", "TG0D",
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"TG0F", "TG0H", "TG0P", "TG0T", "TG1H", "TN0D", "TN0P", "TTF0",
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"Th2H", "Tm0P", "Ts0P", "Ts0S", NULL },
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/* Set 13: iMac 8,1 */
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{ "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
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"TL0P", "TO0P", "TW0P", "Tm0P", "Tp0P", NULL },
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/* Set 14: iMac 6,1 */
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{ "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P",
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"TO0P", "Tp0P", NULL },
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/* Set 15: MacBook Air 2,1 */
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{ "TB0T", "TB1S", "TB1T", "TB2S", "TB2T", "TC0D", "TN0D", "TTF0",
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"TV0P", "TVFP", "TW0P", "Th0P", "Tp0P", "Tp1P", "TpFP", "Ts0P",
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"Ts0S", NULL },
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};
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/* List of keys used to read/write fan speeds */
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static const char* fan_speed_keys[] = {
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FAN_ACTUAL_SPEED,
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FAN_MIN_SPEED,
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FAN_MAX_SPEED,
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FAN_SAFE_SPEED,
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FAN_TARGET_SPEED
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};
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#define INIT_TIMEOUT_MSECS 5000 /* wait up to 5s for device init ... */
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#define INIT_WAIT_MSECS 50 /* ... in 50ms increments */
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#define APPLESMC_POLL_INTERVAL 50 /* msecs */
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#define APPLESMC_INPUT_FUZZ 4 /* input event threshold */
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#define APPLESMC_INPUT_FLAT 4
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#define SENSOR_X 0
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#define SENSOR_Y 1
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#define SENSOR_Z 2
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/* Structure to be passed to DMI_MATCH function */
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struct dmi_match_data {
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/* Indicates whether this computer has an accelerometer. */
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int accelerometer;
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/* Indicates whether this computer has light sensors and keyboard backlight. */
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int light;
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/* Indicates which temperature sensors set to use. */
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int temperature_set;
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};
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static const int debug;
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static struct platform_device *pdev;
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static s16 rest_x;
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static s16 rest_y;
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static struct device *hwmon_dev;
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static struct input_polled_dev *applesmc_idev;
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/* Indicates whether this computer has an accelerometer. */
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static unsigned int applesmc_accelerometer;
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/* Indicates whether this computer has light sensors and keyboard backlight. */
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static unsigned int applesmc_light;
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/* Indicates which temperature sensors set to use. */
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static unsigned int applesmc_temperature_set;
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static DEFINE_MUTEX(applesmc_lock);
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/*
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* Last index written to key_at_index sysfs file, and value to use for all other
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* key_at_index_* sysfs files.
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*/
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static unsigned int key_at_index;
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static struct workqueue_struct *applesmc_led_wq;
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/*
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* __wait_status - Wait up to 32ms for the status port to get a certain value
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* (masked with 0x0f), returning zero if the value is obtained. Callers must
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* hold applesmc_lock.
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*/
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static int __wait_status(u8 val)
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{
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int us;
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val = val & APPLESMC_STATUS_MASK;
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for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) {
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udelay(us);
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if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == val) {
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if (debug)
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printk(KERN_DEBUG
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"Waited %d us for status %x\n",
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2 * us - APPLESMC_MIN_WAIT, val);
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return 0;
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}
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}
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printk(KERN_WARNING "applesmc: wait status failed: %x != %x\n",
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val, inb(APPLESMC_CMD_PORT));
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return -EIO;
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}
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/*
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* special treatment of command port - on newer macbooks, it seems necessary
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* to resend the command byte before polling the status again. Callers must
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* hold applesmc_lock.
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*/
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static int send_command(u8 cmd)
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{
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int us;
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for (us = APPLESMC_MIN_WAIT; us < APPLESMC_MAX_WAIT; us <<= 1) {
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outb(cmd, APPLESMC_CMD_PORT);
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udelay(us);
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if ((inb(APPLESMC_CMD_PORT) & APPLESMC_STATUS_MASK) == 0x0c)
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return 0;
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}
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printk(KERN_WARNING "applesmc: command failed: %x -> %x\n",
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cmd, inb(APPLESMC_CMD_PORT));
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return -EIO;
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}
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/*
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* applesmc_read_key - reads len bytes from a given key, and put them in buffer.
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* Returns zero on success or a negative error on failure. Callers must
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* hold applesmc_lock.
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*/
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static int applesmc_read_key(const char* key, u8* buffer, u8 len)
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{
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int i;
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if (len > APPLESMC_MAX_DATA_LENGTH) {
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printk(KERN_ERR "applesmc_read_key: cannot read more than "
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"%d bytes\n", APPLESMC_MAX_DATA_LENGTH);
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return -EINVAL;
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}
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if (send_command(APPLESMC_READ_CMD))
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return -EIO;
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for (i = 0; i < 4; i++) {
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outb(key[i], APPLESMC_DATA_PORT);
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if (__wait_status(0x04))
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return -EIO;
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}
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if (debug)
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printk(KERN_DEBUG "<%s", key);
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outb(len, APPLESMC_DATA_PORT);
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if (debug)
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printk(KERN_DEBUG ">%x", len);
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for (i = 0; i < len; i++) {
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if (__wait_status(0x05))
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return -EIO;
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buffer[i] = inb(APPLESMC_DATA_PORT);
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if (debug)
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printk(KERN_DEBUG "<%x", buffer[i]);
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}
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if (debug)
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printk(KERN_DEBUG "\n");
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return 0;
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}
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/*
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* applesmc_write_key - writes len bytes from buffer to a given key.
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* Returns zero on success or a negative error on failure. Callers must
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* hold applesmc_lock.
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*/
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static int applesmc_write_key(const char* key, u8* buffer, u8 len)
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{
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int i;
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if (len > APPLESMC_MAX_DATA_LENGTH) {
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printk(KERN_ERR "applesmc_write_key: cannot write more than "
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"%d bytes\n", APPLESMC_MAX_DATA_LENGTH);
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return -EINVAL;
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}
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if (send_command(APPLESMC_WRITE_CMD))
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return -EIO;
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for (i = 0; i < 4; i++) {
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outb(key[i], APPLESMC_DATA_PORT);
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if (__wait_status(0x04))
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return -EIO;
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}
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outb(len, APPLESMC_DATA_PORT);
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for (i = 0; i < len; i++) {
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if (__wait_status(0x04))
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return -EIO;
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outb(buffer[i], APPLESMC_DATA_PORT);
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}
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return 0;
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}
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/*
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* applesmc_get_key_at_index - get key at index, and put the result in key
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* (char[6]). Returns zero on success or a negative error on failure. Callers
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* must hold applesmc_lock.
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*/
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static int applesmc_get_key_at_index(int index, char* key)
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{
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int i;
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u8 readkey[4];
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readkey[0] = index >> 24;
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readkey[1] = index >> 16;
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readkey[2] = index >> 8;
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readkey[3] = index;
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if (send_command(APPLESMC_GET_KEY_BY_INDEX_CMD))
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return -EIO;
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for (i = 0; i < 4; i++) {
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outb(readkey[i], APPLESMC_DATA_PORT);
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if (__wait_status(0x04))
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return -EIO;
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}
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outb(4, APPLESMC_DATA_PORT);
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for (i = 0; i < 4; i++) {
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if (__wait_status(0x05))
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return -EIO;
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key[i] = inb(APPLESMC_DATA_PORT);
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}
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key[4] = 0;
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return 0;
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}
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/*
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* applesmc_get_key_type - get key type, and put the result in type (char[6]).
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* Returns zero on success or a negative error on failure. Callers must
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* hold applesmc_lock.
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*/
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static int applesmc_get_key_type(char* key, char* type)
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{
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int i;
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if (send_command(APPLESMC_GET_KEY_TYPE_CMD))
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return -EIO;
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for (i = 0; i < 4; i++) {
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outb(key[i], APPLESMC_DATA_PORT);
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if (__wait_status(0x04))
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return -EIO;
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}
|
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outb(6, APPLESMC_DATA_PORT);
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for (i = 0; i < 6; i++) {
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if (__wait_status(0x05))
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return -EIO;
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type[i] = inb(APPLESMC_DATA_PORT);
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}
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type[5] = 0;
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return 0;
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}
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|
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/*
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* applesmc_read_motion_sensor - Read motion sensor (X, Y or Z). Callers must
|
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* hold applesmc_lock.
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*/
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static int applesmc_read_motion_sensor(int index, s16* value)
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{
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u8 buffer[2];
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int ret;
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switch (index) {
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case SENSOR_X:
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ret = applesmc_read_key(MOTION_SENSOR_X_KEY, buffer, 2);
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break;
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case SENSOR_Y:
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ret = applesmc_read_key(MOTION_SENSOR_Y_KEY, buffer, 2);
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break;
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case SENSOR_Z:
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ret = applesmc_read_key(MOTION_SENSOR_Z_KEY, buffer, 2);
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break;
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default:
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ret = -EINVAL;
|
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}
|
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|
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*value = ((s16)buffer[0] << 8) | buffer[1];
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return ret;
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}
|
|
|
|
/*
|
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* applesmc_device_init - initialize the accelerometer. Returns zero on success
|
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* and negative error code on failure. Can sleep.
|
|
*/
|
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static int applesmc_device_init(void)
|
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{
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int total, ret = -ENXIO;
|
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u8 buffer[2];
|
|
|
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if (!applesmc_accelerometer)
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return 0;
|
|
|
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mutex_lock(&applesmc_lock);
|
|
|
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for (total = INIT_TIMEOUT_MSECS; total > 0; total -= INIT_WAIT_MSECS) {
|
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if (debug)
|
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printk(KERN_DEBUG "applesmc try %d\n", total);
|
|
if (!applesmc_read_key(MOTION_SENSOR_KEY, buffer, 2) &&
|
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(buffer[0] != 0x00 || buffer[1] != 0x00)) {
|
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if (total == INIT_TIMEOUT_MSECS) {
|
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printk(KERN_DEBUG "applesmc: device has"
|
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" already been initialized"
|
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" (0x%02x, 0x%02x).\n",
|
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buffer[0], buffer[1]);
|
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} else {
|
|
printk(KERN_DEBUG "applesmc: device"
|
|
" successfully initialized"
|
|
" (0x%02x, 0x%02x).\n",
|
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buffer[0], buffer[1]);
|
|
}
|
|
ret = 0;
|
|
goto out;
|
|
}
|
|
buffer[0] = 0xe0;
|
|
buffer[1] = 0x00;
|
|
applesmc_write_key(MOTION_SENSOR_KEY, buffer, 2);
|
|
msleep(INIT_WAIT_MSECS);
|
|
}
|
|
|
|
printk(KERN_WARNING "applesmc: failed to init the device\n");
|
|
|
|
out:
|
|
mutex_unlock(&applesmc_lock);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* applesmc_get_fan_count - get the number of fans. Callers must NOT hold
|
|
* applesmc_lock.
|
|
*/
|
|
static int applesmc_get_fan_count(void)
|
|
{
|
|
int ret;
|
|
u8 buffer[1];
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(FANS_COUNT, buffer, 1);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return buffer[0];
|
|
}
|
|
|
|
/* Device model stuff */
|
|
static int applesmc_probe(struct platform_device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = applesmc_device_init();
|
|
if (ret)
|
|
return ret;
|
|
|
|
printk(KERN_INFO "applesmc: device successfully initialized.\n");
|
|
return 0;
|
|
}
|
|
|
|
static int applesmc_resume(struct platform_device *dev)
|
|
{
|
|
return applesmc_device_init();
|
|
}
|
|
|
|
static struct platform_driver applesmc_driver = {
|
|
.probe = applesmc_probe,
|
|
.resume = applesmc_resume,
|
|
.driver = {
|
|
.name = "applesmc",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* applesmc_calibrate - Set our "resting" values. Callers must
|
|
* hold applesmc_lock.
|
|
*/
|
|
static void applesmc_calibrate(void)
|
|
{
|
|
applesmc_read_motion_sensor(SENSOR_X, &rest_x);
|
|
applesmc_read_motion_sensor(SENSOR_Y, &rest_y);
|
|
rest_x = -rest_x;
|
|
}
|
|
|
|
static void applesmc_idev_poll(struct input_polled_dev *dev)
|
|
{
|
|
struct input_dev *idev = dev->input;
|
|
s16 x, y;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
if (applesmc_read_motion_sensor(SENSOR_X, &x))
|
|
goto out;
|
|
if (applesmc_read_motion_sensor(SENSOR_Y, &y))
|
|
goto out;
|
|
|
|
x = -x;
|
|
input_report_abs(idev, ABS_X, x - rest_x);
|
|
input_report_abs(idev, ABS_Y, y - rest_y);
|
|
input_sync(idev);
|
|
|
|
out:
|
|
mutex_unlock(&applesmc_lock);
|
|
}
|
|
|
|
/* Sysfs Files */
|
|
|
|
static ssize_t applesmc_name_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
return snprintf(buf, PAGE_SIZE, "applesmc\n");
|
|
}
|
|
|
|
static ssize_t applesmc_position_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
int ret;
|
|
s16 x, y, z;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_motion_sensor(SENSOR_X, &x);
|
|
if (ret)
|
|
goto out;
|
|
ret = applesmc_read_motion_sensor(SENSOR_Y, &y);
|
|
if (ret)
|
|
goto out;
|
|
ret = applesmc_read_motion_sensor(SENSOR_Z, &z);
|
|
if (ret)
|
|
goto out;
|
|
|
|
out:
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(buf, PAGE_SIZE, "(%d,%d,%d)\n", x, y, z);
|
|
}
|
|
|
|
static ssize_t applesmc_light_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
static int data_length;
|
|
int ret;
|
|
u8 left = 0, right = 0;
|
|
u8 buffer[10], query[6];
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
if (!data_length) {
|
|
ret = applesmc_get_key_type(LIGHT_SENSOR_LEFT_KEY, query);
|
|
if (ret)
|
|
goto out;
|
|
data_length = clamp_val(query[0], 0, 10);
|
|
printk(KERN_INFO "applesmc: light sensor data length set to "
|
|
"%d\n", data_length);
|
|
}
|
|
|
|
ret = applesmc_read_key(LIGHT_SENSOR_LEFT_KEY, buffer, data_length);
|
|
left = buffer[2];
|
|
if (ret)
|
|
goto out;
|
|
ret = applesmc_read_key(LIGHT_SENSOR_RIGHT_KEY, buffer, data_length);
|
|
right = buffer[2];
|
|
|
|
out:
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", left, right);
|
|
}
|
|
|
|
/* Displays degree Celsius * 1000 */
|
|
static ssize_t applesmc_show_temperature(struct device *dev,
|
|
struct device_attribute *devattr, char *sysfsbuf)
|
|
{
|
|
int ret;
|
|
u8 buffer[2];
|
|
unsigned int temp;
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
const char* key =
|
|
temperature_sensors_sets[applesmc_temperature_set][attr->index];
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(key, buffer, 2);
|
|
temp = buffer[0]*1000;
|
|
temp += (buffer[1] >> 6) * 250;
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", temp);
|
|
}
|
|
|
|
static ssize_t applesmc_show_fan_speed(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
int ret;
|
|
unsigned int speed = 0;
|
|
char newkey[5];
|
|
u8 buffer[2];
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
|
|
newkey[0] = fan_speed_keys[sensor_attr->nr][0];
|
|
newkey[1] = '0' + sensor_attr->index;
|
|
newkey[2] = fan_speed_keys[sensor_attr->nr][2];
|
|
newkey[3] = fan_speed_keys[sensor_attr->nr][3];
|
|
newkey[4] = 0;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(newkey, buffer, 2);
|
|
speed = ((buffer[0] << 8 | buffer[1]) >> 2);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%u\n", speed);
|
|
}
|
|
|
|
static ssize_t applesmc_store_fan_speed(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *sysfsbuf, size_t count)
|
|
{
|
|
int ret;
|
|
u32 speed;
|
|
char newkey[5];
|
|
u8 buffer[2];
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
|
|
speed = simple_strtoul(sysfsbuf, NULL, 10);
|
|
|
|
if (speed > 0x4000) /* Bigger than a 14-bit value */
|
|
return -EINVAL;
|
|
|
|
newkey[0] = fan_speed_keys[sensor_attr->nr][0];
|
|
newkey[1] = '0' + sensor_attr->index;
|
|
newkey[2] = fan_speed_keys[sensor_attr->nr][2];
|
|
newkey[3] = fan_speed_keys[sensor_attr->nr][3];
|
|
newkey[4] = 0;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
buffer[0] = (speed >> 6) & 0xff;
|
|
buffer[1] = (speed << 2) & 0xff;
|
|
ret = applesmc_write_key(newkey, buffer, 2);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return count;
|
|
}
|
|
|
|
static ssize_t applesmc_show_fan_manual(struct device *dev,
|
|
struct device_attribute *devattr, char *sysfsbuf)
|
|
{
|
|
int ret;
|
|
u16 manual = 0;
|
|
u8 buffer[2];
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
|
|
manual = ((buffer[0] << 8 | buffer[1]) >> attr->index) & 0x01;
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", manual);
|
|
}
|
|
|
|
static ssize_t applesmc_store_fan_manual(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
const char *sysfsbuf, size_t count)
|
|
{
|
|
int ret;
|
|
u8 buffer[2];
|
|
u32 input;
|
|
u16 val;
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
|
|
input = simple_strtoul(sysfsbuf, NULL, 10);
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(FANS_MANUAL, buffer, 2);
|
|
val = (buffer[0] << 8 | buffer[1]);
|
|
if (ret)
|
|
goto out;
|
|
|
|
if (input)
|
|
val = val | (0x01 << attr->index);
|
|
else
|
|
val = val & ~(0x01 << attr->index);
|
|
|
|
buffer[0] = (val >> 8) & 0xFF;
|
|
buffer[1] = val & 0xFF;
|
|
|
|
ret = applesmc_write_key(FANS_MANUAL, buffer, 2);
|
|
|
|
out:
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return count;
|
|
}
|
|
|
|
static ssize_t applesmc_show_fan_position(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
int ret;
|
|
char newkey[5];
|
|
u8 buffer[17];
|
|
struct sensor_device_attribute_2 *sensor_attr =
|
|
to_sensor_dev_attr_2(attr);
|
|
|
|
newkey[0] = FAN_POSITION[0];
|
|
newkey[1] = '0' + sensor_attr->index;
|
|
newkey[2] = FAN_POSITION[2];
|
|
newkey[3] = FAN_POSITION[3];
|
|
newkey[4] = 0;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(newkey, buffer, 16);
|
|
buffer[16] = 0;
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", buffer+4);
|
|
}
|
|
|
|
static ssize_t applesmc_calibrate_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "(%d,%d)\n", rest_x, rest_y);
|
|
}
|
|
|
|
static ssize_t applesmc_calibrate_store(struct device *dev,
|
|
struct device_attribute *attr, const char *sysfsbuf, size_t count)
|
|
{
|
|
mutex_lock(&applesmc_lock);
|
|
applesmc_calibrate();
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
/* Store the next backlight value to be written by the work */
|
|
static unsigned int backlight_value;
|
|
|
|
static void applesmc_backlight_set(struct work_struct *work)
|
|
{
|
|
u8 buffer[2];
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
buffer[0] = backlight_value;
|
|
buffer[1] = 0x00;
|
|
applesmc_write_key(BACKLIGHT_KEY, buffer, 2);
|
|
mutex_unlock(&applesmc_lock);
|
|
}
|
|
static DECLARE_WORK(backlight_work, &applesmc_backlight_set);
|
|
|
|
static void applesmc_brightness_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
int ret;
|
|
|
|
backlight_value = value;
|
|
ret = queue_work(applesmc_led_wq, &backlight_work);
|
|
|
|
if (debug && (!ret))
|
|
printk(KERN_DEBUG "applesmc: work was already on the queue.\n");
|
|
}
|
|
|
|
static ssize_t applesmc_key_count_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
int ret;
|
|
u8 buffer[4];
|
|
u32 count;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_read_key(KEY_COUNT_KEY, buffer, 4);
|
|
count = ((u32)buffer[0]<<24) + ((u32)buffer[1]<<16) +
|
|
((u32)buffer[2]<<8) + buffer[3];
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
if (ret)
|
|
return ret;
|
|
else
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", count);
|
|
}
|
|
|
|
static ssize_t applesmc_key_at_index_read_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
char key[5];
|
|
char info[6];
|
|
int ret;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_get_key_at_index(key_at_index, key);
|
|
|
|
if (ret || !key[0]) {
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = applesmc_get_key_type(key, info);
|
|
|
|
if (ret) {
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* info[0] maximum value (APPLESMC_MAX_DATA_LENGTH) is much lower than
|
|
* PAGE_SIZE, so we don't need any checks before writing to sysfsbuf.
|
|
*/
|
|
ret = applesmc_read_key(key, sysfsbuf, info[0]);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
if (!ret) {
|
|
return info[0];
|
|
} else {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
static ssize_t applesmc_key_at_index_data_length_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
char key[5];
|
|
char info[6];
|
|
int ret;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_get_key_at_index(key_at_index, key);
|
|
|
|
if (ret || !key[0]) {
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = applesmc_get_key_type(key, info);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
if (!ret)
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", info[0]);
|
|
else
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t applesmc_key_at_index_type_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
char key[5];
|
|
char info[6];
|
|
int ret;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_get_key_at_index(key_at_index, key);
|
|
|
|
if (ret || !key[0]) {
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
ret = applesmc_get_key_type(key, info);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
if (!ret)
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", info+1);
|
|
else
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t applesmc_key_at_index_name_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
char key[5];
|
|
int ret;
|
|
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
ret = applesmc_get_key_at_index(key_at_index, key);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
if (!ret && key[0])
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%s\n", key);
|
|
else
|
|
return -EINVAL;
|
|
}
|
|
|
|
static ssize_t applesmc_key_at_index_show(struct device *dev,
|
|
struct device_attribute *attr, char *sysfsbuf)
|
|
{
|
|
return snprintf(sysfsbuf, PAGE_SIZE, "%d\n", key_at_index);
|
|
}
|
|
|
|
static ssize_t applesmc_key_at_index_store(struct device *dev,
|
|
struct device_attribute *attr, const char *sysfsbuf, size_t count)
|
|
{
|
|
mutex_lock(&applesmc_lock);
|
|
|
|
key_at_index = simple_strtoul(sysfsbuf, NULL, 10);
|
|
|
|
mutex_unlock(&applesmc_lock);
|
|
|
|
return count;
|
|
}
|
|
|
|
static struct led_classdev applesmc_backlight = {
|
|
.name = "smc::kbd_backlight",
|
|
.default_trigger = "nand-disk",
|
|
.brightness_set = applesmc_brightness_set,
|
|
};
|
|
|
|
static DEVICE_ATTR(name, 0444, applesmc_name_show, NULL);
|
|
|
|
static DEVICE_ATTR(position, 0444, applesmc_position_show, NULL);
|
|
static DEVICE_ATTR(calibrate, 0644,
|
|
applesmc_calibrate_show, applesmc_calibrate_store);
|
|
|
|
static struct attribute *accelerometer_attributes[] = {
|
|
&dev_attr_position.attr,
|
|
&dev_attr_calibrate.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group accelerometer_attributes_group =
|
|
{ .attrs = accelerometer_attributes };
|
|
|
|
static DEVICE_ATTR(light, 0444, applesmc_light_show, NULL);
|
|
|
|
static DEVICE_ATTR(key_count, 0444, applesmc_key_count_show, NULL);
|
|
static DEVICE_ATTR(key_at_index, 0644,
|
|
applesmc_key_at_index_show, applesmc_key_at_index_store);
|
|
static DEVICE_ATTR(key_at_index_name, 0444,
|
|
applesmc_key_at_index_name_show, NULL);
|
|
static DEVICE_ATTR(key_at_index_type, 0444,
|
|
applesmc_key_at_index_type_show, NULL);
|
|
static DEVICE_ATTR(key_at_index_data_length, 0444,
|
|
applesmc_key_at_index_data_length_show, NULL);
|
|
static DEVICE_ATTR(key_at_index_data, 0444,
|
|
applesmc_key_at_index_read_show, NULL);
|
|
|
|
static struct attribute *key_enumeration_attributes[] = {
|
|
&dev_attr_key_count.attr,
|
|
&dev_attr_key_at_index.attr,
|
|
&dev_attr_key_at_index_name.attr,
|
|
&dev_attr_key_at_index_type.attr,
|
|
&dev_attr_key_at_index_data_length.attr,
|
|
&dev_attr_key_at_index_data.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group key_enumeration_group =
|
|
{ .attrs = key_enumeration_attributes };
|
|
|
|
/*
|
|
* Macro defining SENSOR_DEVICE_ATTR for a fan sysfs entries.
|
|
* - show actual speed
|
|
* - show/store minimum speed
|
|
* - show maximum speed
|
|
* - show safe speed
|
|
* - show/store target speed
|
|
* - show/store manual mode
|
|
*/
|
|
#define sysfs_fan_speeds_offset(offset) \
|
|
static SENSOR_DEVICE_ATTR_2(fan##offset##_input, S_IRUGO, \
|
|
applesmc_show_fan_speed, NULL, 0, offset-1); \
|
|
\
|
|
static SENSOR_DEVICE_ATTR_2(fan##offset##_min, S_IRUGO | S_IWUSR, \
|
|
applesmc_show_fan_speed, applesmc_store_fan_speed, 1, offset-1); \
|
|
\
|
|
static SENSOR_DEVICE_ATTR_2(fan##offset##_max, S_IRUGO, \
|
|
applesmc_show_fan_speed, NULL, 2, offset-1); \
|
|
\
|
|
static SENSOR_DEVICE_ATTR_2(fan##offset##_safe, S_IRUGO, \
|
|
applesmc_show_fan_speed, NULL, 3, offset-1); \
|
|
\
|
|
static SENSOR_DEVICE_ATTR_2(fan##offset##_output, S_IRUGO | S_IWUSR, \
|
|
applesmc_show_fan_speed, applesmc_store_fan_speed, 4, offset-1); \
|
|
\
|
|
static SENSOR_DEVICE_ATTR(fan##offset##_manual, S_IRUGO | S_IWUSR, \
|
|
applesmc_show_fan_manual, applesmc_store_fan_manual, offset-1); \
|
|
\
|
|
static SENSOR_DEVICE_ATTR(fan##offset##_label, S_IRUGO, \
|
|
applesmc_show_fan_position, NULL, offset-1); \
|
|
\
|
|
static struct attribute *fan##offset##_attributes[] = { \
|
|
&sensor_dev_attr_fan##offset##_input.dev_attr.attr, \
|
|
&sensor_dev_attr_fan##offset##_min.dev_attr.attr, \
|
|
&sensor_dev_attr_fan##offset##_max.dev_attr.attr, \
|
|
&sensor_dev_attr_fan##offset##_safe.dev_attr.attr, \
|
|
&sensor_dev_attr_fan##offset##_output.dev_attr.attr, \
|
|
&sensor_dev_attr_fan##offset##_manual.dev_attr.attr, \
|
|
&sensor_dev_attr_fan##offset##_label.dev_attr.attr, \
|
|
NULL \
|
|
};
|
|
|
|
/*
|
|
* Create the needed functions for each fan using the macro defined above
|
|
* (4 fans are supported)
|
|
*/
|
|
sysfs_fan_speeds_offset(1);
|
|
sysfs_fan_speeds_offset(2);
|
|
sysfs_fan_speeds_offset(3);
|
|
sysfs_fan_speeds_offset(4);
|
|
|
|
static const struct attribute_group fan_attribute_groups[] = {
|
|
{ .attrs = fan1_attributes },
|
|
{ .attrs = fan2_attributes },
|
|
{ .attrs = fan3_attributes },
|
|
{ .attrs = fan4_attributes },
|
|
};
|
|
|
|
/*
|
|
* Temperature sensors sysfs entries.
|
|
*/
|
|
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 0);
|
|
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 1);
|
|
static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 2);
|
|
static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 3);
|
|
static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 4);
|
|
static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 5);
|
|
static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 6);
|
|
static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 7);
|
|
static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 8);
|
|
static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 9);
|
|
static SENSOR_DEVICE_ATTR(temp11_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 10);
|
|
static SENSOR_DEVICE_ATTR(temp12_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 11);
|
|
static SENSOR_DEVICE_ATTR(temp13_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 12);
|
|
static SENSOR_DEVICE_ATTR(temp14_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 13);
|
|
static SENSOR_DEVICE_ATTR(temp15_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 14);
|
|
static SENSOR_DEVICE_ATTR(temp16_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 15);
|
|
static SENSOR_DEVICE_ATTR(temp17_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 16);
|
|
static SENSOR_DEVICE_ATTR(temp18_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 17);
|
|
static SENSOR_DEVICE_ATTR(temp19_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 18);
|
|
static SENSOR_DEVICE_ATTR(temp20_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 19);
|
|
static SENSOR_DEVICE_ATTR(temp21_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 20);
|
|
static SENSOR_DEVICE_ATTR(temp22_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 21);
|
|
static SENSOR_DEVICE_ATTR(temp23_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 22);
|
|
static SENSOR_DEVICE_ATTR(temp24_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 23);
|
|
static SENSOR_DEVICE_ATTR(temp25_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 24);
|
|
static SENSOR_DEVICE_ATTR(temp26_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 25);
|
|
static SENSOR_DEVICE_ATTR(temp27_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 26);
|
|
static SENSOR_DEVICE_ATTR(temp28_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 27);
|
|
static SENSOR_DEVICE_ATTR(temp29_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 28);
|
|
static SENSOR_DEVICE_ATTR(temp30_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 29);
|
|
static SENSOR_DEVICE_ATTR(temp31_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 30);
|
|
static SENSOR_DEVICE_ATTR(temp32_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 31);
|
|
static SENSOR_DEVICE_ATTR(temp33_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 32);
|
|
static SENSOR_DEVICE_ATTR(temp34_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 33);
|
|
static SENSOR_DEVICE_ATTR(temp35_input, S_IRUGO,
|
|
applesmc_show_temperature, NULL, 34);
|
|
|
|
static struct attribute *temperature_attributes[] = {
|
|
&sensor_dev_attr_temp1_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp2_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp3_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp4_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp5_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp6_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp7_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp8_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp9_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp10_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp11_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp12_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp13_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp14_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp15_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp16_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp17_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp18_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp19_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp20_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp21_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp22_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp23_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp24_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp25_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp26_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp27_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp28_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp29_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp30_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp31_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp32_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp33_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp34_input.dev_attr.attr,
|
|
&sensor_dev_attr_temp35_input.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group temperature_attributes_group =
|
|
{ .attrs = temperature_attributes };
|
|
|
|
/* Module stuff */
|
|
|
|
/*
|
|
* applesmc_dmi_match - found a match. return one, short-circuiting the hunt.
|
|
*/
|
|
static int applesmc_dmi_match(const struct dmi_system_id *id)
|
|
{
|
|
int i = 0;
|
|
struct dmi_match_data* dmi_data = id->driver_data;
|
|
printk(KERN_INFO "applesmc: %s detected:\n", id->ident);
|
|
applesmc_accelerometer = dmi_data->accelerometer;
|
|
printk(KERN_INFO "applesmc: - Model %s accelerometer\n",
|
|
applesmc_accelerometer ? "with" : "without");
|
|
applesmc_light = dmi_data->light;
|
|
printk(KERN_INFO "applesmc: - Model %s light sensors and backlight\n",
|
|
applesmc_light ? "with" : "without");
|
|
|
|
applesmc_temperature_set = dmi_data->temperature_set;
|
|
while (temperature_sensors_sets[applesmc_temperature_set][i] != NULL)
|
|
i++;
|
|
printk(KERN_INFO "applesmc: - Model with %d temperature sensors\n", i);
|
|
return 1;
|
|
}
|
|
|
|
/* Create accelerometer ressources */
|
|
static int applesmc_create_accelerometer(void)
|
|
{
|
|
struct input_dev *idev;
|
|
int ret;
|
|
|
|
ret = sysfs_create_group(&pdev->dev.kobj,
|
|
&accelerometer_attributes_group);
|
|
if (ret)
|
|
goto out;
|
|
|
|
applesmc_idev = input_allocate_polled_device();
|
|
if (!applesmc_idev) {
|
|
ret = -ENOMEM;
|
|
goto out_sysfs;
|
|
}
|
|
|
|
applesmc_idev->poll = applesmc_idev_poll;
|
|
applesmc_idev->poll_interval = APPLESMC_POLL_INTERVAL;
|
|
|
|
/* initial calibrate for the input device */
|
|
applesmc_calibrate();
|
|
|
|
/* initialize the input device */
|
|
idev = applesmc_idev->input;
|
|
idev->name = "applesmc";
|
|
idev->id.bustype = BUS_HOST;
|
|
idev->dev.parent = &pdev->dev;
|
|
idev->evbit[0] = BIT_MASK(EV_ABS);
|
|
input_set_abs_params(idev, ABS_X,
|
|
-256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT);
|
|
input_set_abs_params(idev, ABS_Y,
|
|
-256, 256, APPLESMC_INPUT_FUZZ, APPLESMC_INPUT_FLAT);
|
|
|
|
ret = input_register_polled_device(applesmc_idev);
|
|
if (ret)
|
|
goto out_idev;
|
|
|
|
return 0;
|
|
|
|
out_idev:
|
|
input_free_polled_device(applesmc_idev);
|
|
|
|
out_sysfs:
|
|
sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
|
|
|
|
out:
|
|
printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Release all ressources used by the accelerometer */
|
|
static void applesmc_release_accelerometer(void)
|
|
{
|
|
input_unregister_polled_device(applesmc_idev);
|
|
input_free_polled_device(applesmc_idev);
|
|
sysfs_remove_group(&pdev->dev.kobj, &accelerometer_attributes_group);
|
|
}
|
|
|
|
static __initdata struct dmi_match_data applesmc_dmi_data[] = {
|
|
/* MacBook Pro: accelerometer, backlight and temperature set 0 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 0 },
|
|
/* MacBook2: accelerometer and temperature set 1 */
|
|
{ .accelerometer = 1, .light = 0, .temperature_set = 1 },
|
|
/* MacBook: accelerometer and temperature set 2 */
|
|
{ .accelerometer = 1, .light = 0, .temperature_set = 2 },
|
|
/* MacMini: temperature set 3 */
|
|
{ .accelerometer = 0, .light = 0, .temperature_set = 3 },
|
|
/* MacPro: temperature set 4 */
|
|
{ .accelerometer = 0, .light = 0, .temperature_set = 4 },
|
|
/* iMac: temperature set 5 */
|
|
{ .accelerometer = 0, .light = 0, .temperature_set = 5 },
|
|
/* MacBook3, MacBook4: accelerometer and temperature set 6 */
|
|
{ .accelerometer = 1, .light = 0, .temperature_set = 6 },
|
|
/* MacBook Air: accelerometer, backlight and temperature set 7 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 7 },
|
|
/* MacBook Pro 4: accelerometer, backlight and temperature set 8 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 8 },
|
|
/* MacBook Pro 3: accelerometer, backlight and temperature set 9 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 9 },
|
|
/* iMac 5: light sensor only, temperature set 10 */
|
|
{ .accelerometer = 0, .light = 0, .temperature_set = 10 },
|
|
/* MacBook 5: accelerometer, backlight and temperature set 11 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 11 },
|
|
/* MacBook Pro 5: accelerometer, backlight and temperature set 12 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 12 },
|
|
/* iMac 8: light sensor only, temperature set 13 */
|
|
{ .accelerometer = 0, .light = 0, .temperature_set = 13 },
|
|
/* iMac 6: light sensor only, temperature set 14 */
|
|
{ .accelerometer = 0, .light = 0, .temperature_set = 14 },
|
|
/* MacBook Air 2,1: accelerometer, backlight and temperature set 15 */
|
|
{ .accelerometer = 1, .light = 1, .temperature_set = 15 },
|
|
};
|
|
|
|
/* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
|
|
* So we need to put "Apple MacBook Pro" before "Apple MacBook". */
|
|
static __initdata struct dmi_system_id applesmc_whitelist[] = {
|
|
{ applesmc_dmi_match, "Apple MacBook Air 2", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir2") },
|
|
&applesmc_dmi_data[15]},
|
|
{ applesmc_dmi_match, "Apple MacBook Air", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") },
|
|
&applesmc_dmi_data[7]},
|
|
{ applesmc_dmi_match, "Apple MacBook Pro 5", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5") },
|
|
&applesmc_dmi_data[12]},
|
|
{ applesmc_dmi_match, "Apple MacBook Pro 4", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4") },
|
|
&applesmc_dmi_data[8]},
|
|
{ applesmc_dmi_match, "Apple MacBook Pro 3", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3") },
|
|
&applesmc_dmi_data[9]},
|
|
{ applesmc_dmi_match, "Apple MacBook Pro", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"MacBookPro") },
|
|
&applesmc_dmi_data[0]},
|
|
{ applesmc_dmi_match, "Apple MacBook (v2)", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook2") },
|
|
&applesmc_dmi_data[1]},
|
|
{ applesmc_dmi_match, "Apple MacBook (v3)", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") },
|
|
&applesmc_dmi_data[6]},
|
|
{ applesmc_dmi_match, "Apple MacBook 4", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook4") },
|
|
&applesmc_dmi_data[6]},
|
|
{ applesmc_dmi_match, "Apple MacBook 5", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5") },
|
|
&applesmc_dmi_data[11]},
|
|
{ applesmc_dmi_match, "Apple MacBook", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") },
|
|
&applesmc_dmi_data[2]},
|
|
{ applesmc_dmi_match, "Apple Macmini", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"Macmini") },
|
|
&applesmc_dmi_data[3]},
|
|
{ applesmc_dmi_match, "Apple MacPro2", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") },
|
|
&applesmc_dmi_data[4]},
|
|
{ applesmc_dmi_match, "Apple MacPro", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "MacPro") },
|
|
&applesmc_dmi_data[4]},
|
|
{ applesmc_dmi_match, "Apple iMac 8", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") },
|
|
&applesmc_dmi_data[13]},
|
|
{ applesmc_dmi_match, "Apple iMac 6", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "iMac6") },
|
|
&applesmc_dmi_data[14]},
|
|
{ applesmc_dmi_match, "Apple iMac 5", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "iMac5") },
|
|
&applesmc_dmi_data[10]},
|
|
{ applesmc_dmi_match, "Apple iMac", {
|
|
DMI_MATCH(DMI_BOARD_VENDOR,"Apple"),
|
|
DMI_MATCH(DMI_PRODUCT_NAME,"iMac") },
|
|
&applesmc_dmi_data[5]},
|
|
{ .ident = NULL }
|
|
};
|
|
|
|
static int __init applesmc_init(void)
|
|
{
|
|
int ret;
|
|
int count;
|
|
int i;
|
|
|
|
if (!dmi_check_system(applesmc_whitelist)) {
|
|
printk(KERN_WARNING "applesmc: supported laptop not found!\n");
|
|
ret = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
if (!request_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS,
|
|
"applesmc")) {
|
|
ret = -ENXIO;
|
|
goto out;
|
|
}
|
|
|
|
ret = platform_driver_register(&applesmc_driver);
|
|
if (ret)
|
|
goto out_region;
|
|
|
|
pdev = platform_device_register_simple("applesmc", APPLESMC_DATA_PORT,
|
|
NULL, 0);
|
|
if (IS_ERR(pdev)) {
|
|
ret = PTR_ERR(pdev);
|
|
goto out_driver;
|
|
}
|
|
|
|
ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_name.attr);
|
|
if (ret)
|
|
goto out_device;
|
|
|
|
/* Create key enumeration sysfs files */
|
|
ret = sysfs_create_group(&pdev->dev.kobj, &key_enumeration_group);
|
|
if (ret)
|
|
goto out_name;
|
|
|
|
/* create fan files */
|
|
count = applesmc_get_fan_count();
|
|
if (count < 0) {
|
|
printk(KERN_ERR "applesmc: Cannot get the number of fans.\n");
|
|
} else {
|
|
printk(KERN_INFO "applesmc: %d fans found.\n", count);
|
|
|
|
switch (count) {
|
|
default:
|
|
printk(KERN_WARNING "applesmc: More than 4 fans found,"
|
|
" but at most 4 fans are supported"
|
|
" by the driver.\n");
|
|
case 4:
|
|
ret = sysfs_create_group(&pdev->dev.kobj,
|
|
&fan_attribute_groups[3]);
|
|
if (ret)
|
|
goto out_key_enumeration;
|
|
case 3:
|
|
ret = sysfs_create_group(&pdev->dev.kobj,
|
|
&fan_attribute_groups[2]);
|
|
if (ret)
|
|
goto out_key_enumeration;
|
|
case 2:
|
|
ret = sysfs_create_group(&pdev->dev.kobj,
|
|
&fan_attribute_groups[1]);
|
|
if (ret)
|
|
goto out_key_enumeration;
|
|
case 1:
|
|
ret = sysfs_create_group(&pdev->dev.kobj,
|
|
&fan_attribute_groups[0]);
|
|
if (ret)
|
|
goto out_fan_1;
|
|
case 0:
|
|
;
|
|
}
|
|
}
|
|
|
|
for (i = 0;
|
|
temperature_sensors_sets[applesmc_temperature_set][i] != NULL;
|
|
i++) {
|
|
if (temperature_attributes[i] == NULL) {
|
|
printk(KERN_ERR "applesmc: More temperature sensors "
|
|
"in temperature_sensors_sets (at least %i)"
|
|
"than available sysfs files in "
|
|
"temperature_attributes (%i), please report "
|
|
"this bug.\n", i, i-1);
|
|
goto out_temperature;
|
|
}
|
|
ret = sysfs_create_file(&pdev->dev.kobj,
|
|
temperature_attributes[i]);
|
|
if (ret)
|
|
goto out_temperature;
|
|
}
|
|
|
|
if (applesmc_accelerometer) {
|
|
ret = applesmc_create_accelerometer();
|
|
if (ret)
|
|
goto out_temperature;
|
|
}
|
|
|
|
if (applesmc_light) {
|
|
/* Add light sensor file */
|
|
ret = sysfs_create_file(&pdev->dev.kobj, &dev_attr_light.attr);
|
|
if (ret)
|
|
goto out_accelerometer;
|
|
|
|
/* Create the workqueue */
|
|
applesmc_led_wq = create_singlethread_workqueue("applesmc-led");
|
|
if (!applesmc_led_wq) {
|
|
ret = -ENOMEM;
|
|
goto out_light_sysfs;
|
|
}
|
|
|
|
/* register as a led device */
|
|
ret = led_classdev_register(&pdev->dev, &applesmc_backlight);
|
|
if (ret < 0)
|
|
goto out_light_wq;
|
|
}
|
|
|
|
hwmon_dev = hwmon_device_register(&pdev->dev);
|
|
if (IS_ERR(hwmon_dev)) {
|
|
ret = PTR_ERR(hwmon_dev);
|
|
goto out_light_ledclass;
|
|
}
|
|
|
|
printk(KERN_INFO "applesmc: driver successfully loaded.\n");
|
|
|
|
return 0;
|
|
|
|
out_light_ledclass:
|
|
if (applesmc_light)
|
|
led_classdev_unregister(&applesmc_backlight);
|
|
out_light_wq:
|
|
if (applesmc_light)
|
|
destroy_workqueue(applesmc_led_wq);
|
|
out_light_sysfs:
|
|
if (applesmc_light)
|
|
sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
|
|
out_accelerometer:
|
|
if (applesmc_accelerometer)
|
|
applesmc_release_accelerometer();
|
|
out_temperature:
|
|
sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
|
|
sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
|
|
out_fan_1:
|
|
sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
|
|
out_key_enumeration:
|
|
sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
|
|
out_name:
|
|
sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
|
|
out_device:
|
|
platform_device_unregister(pdev);
|
|
out_driver:
|
|
platform_driver_unregister(&applesmc_driver);
|
|
out_region:
|
|
release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
|
|
out:
|
|
printk(KERN_WARNING "applesmc: driver init failed (ret=%d)!\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
static void __exit applesmc_exit(void)
|
|
{
|
|
hwmon_device_unregister(hwmon_dev);
|
|
if (applesmc_light) {
|
|
led_classdev_unregister(&applesmc_backlight);
|
|
destroy_workqueue(applesmc_led_wq);
|
|
sysfs_remove_file(&pdev->dev.kobj, &dev_attr_light.attr);
|
|
}
|
|
if (applesmc_accelerometer)
|
|
applesmc_release_accelerometer();
|
|
sysfs_remove_group(&pdev->dev.kobj, &temperature_attributes_group);
|
|
sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[0]);
|
|
sysfs_remove_group(&pdev->dev.kobj, &fan_attribute_groups[1]);
|
|
sysfs_remove_group(&pdev->dev.kobj, &key_enumeration_group);
|
|
sysfs_remove_file(&pdev->dev.kobj, &dev_attr_name.attr);
|
|
platform_device_unregister(pdev);
|
|
platform_driver_unregister(&applesmc_driver);
|
|
release_region(APPLESMC_DATA_PORT, APPLESMC_NR_PORTS);
|
|
|
|
printk(KERN_INFO "applesmc: driver unloaded.\n");
|
|
}
|
|
|
|
module_init(applesmc_init);
|
|
module_exit(applesmc_exit);
|
|
|
|
MODULE_AUTHOR("Nicolas Boichat");
|
|
MODULE_DESCRIPTION("Apple SMC");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DEVICE_TABLE(dmi, applesmc_whitelist);
|