2009-01-08 10:08:56 +08:00
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/*
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* Driver for Dell laptop extras
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*
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* Copyright (c) Red Hat <mjg@redhat.com>
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2015-02-19 18:58:29 +08:00
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* Copyright (c) 2014 Gabriele Mazzotta <gabriele.mzt@gmail.com>
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* Copyright (c) 2014 Pali Rohár <pali.rohar@gmail.com>
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2009-01-08 10:08:56 +08:00
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*
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2015-02-19 18:58:29 +08:00
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* Based on documentation in the libsmbios package:
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* Copyright (C) 2005-2014 Dell Inc.
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2009-01-08 10:08:56 +08:00
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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2011-03-30 06:21:37 +08:00
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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2009-01-08 10:08:56 +08:00
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/backlight.h>
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#include <linux/err.h>
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#include <linux/dmi.h>
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#include <linux/io.h>
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2013-11-17 21:00:16 +08:00
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#include <linux/rfkill.h>
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2009-01-08 10:08:56 +08:00
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#include <linux/power_supply.h>
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#include <linux/acpi.h>
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2010-02-11 03:12:13 +08:00
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#include <linux/mm.h>
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2009-12-10 02:23:36 +08:00
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#include <linux/i8042.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/slab.h>
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2010-09-28 11:43:31 +08:00
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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2009-01-10 06:23:38 +08:00
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#include "../../firmware/dcdbas.h"
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2009-01-08 10:08:56 +08:00
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#define BRIGHTNESS_TOKEN 0x7d
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2015-02-19 18:58:29 +08:00
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#define KBD_LED_OFF_TOKEN 0x01E1
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#define KBD_LED_ON_TOKEN 0x01E2
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#define KBD_LED_AUTO_TOKEN 0x01E3
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#define KBD_LED_AUTO_25_TOKEN 0x02EA
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#define KBD_LED_AUTO_50_TOKEN 0x02EB
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#define KBD_LED_AUTO_75_TOKEN 0x02EC
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#define KBD_LED_AUTO_100_TOKEN 0x02F6
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2009-01-08 10:08:56 +08:00
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/* This structure will be modified by the firmware when we enter
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* system management mode, hence the volatiles */
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struct calling_interface_buffer {
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u16 class;
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u16 select;
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volatile u32 input[4];
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volatile u32 output[4];
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} __packed;
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struct calling_interface_token {
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u16 tokenID;
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u16 location;
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union {
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u16 value;
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u16 stringlength;
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};
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};
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struct calling_interface_structure {
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struct dmi_header header;
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u16 cmdIOAddress;
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u8 cmdIOCode;
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u32 supportedCmds;
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struct calling_interface_token tokens[];
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} __packed;
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2011-10-04 16:25:44 +08:00
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struct quirk_entry {
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u8 touchpad_led;
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2015-02-19 18:58:29 +08:00
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int needs_kbd_timeouts;
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/*
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* Ordered list of timeouts expressed in seconds.
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* The list must end with -1
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*/
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int kbd_timeouts[];
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2011-10-04 16:25:44 +08:00
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};
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static struct quirk_entry *quirks;
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static struct quirk_entry quirk_dell_vostro_v130 = {
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.touchpad_led = 1,
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};
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2014-07-17 01:43:09 +08:00
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static int __init dmi_matched(const struct dmi_system_id *dmi)
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2011-10-04 16:25:44 +08:00
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{
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quirks = dmi->driver_data;
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return 1;
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}
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2015-02-19 18:58:29 +08:00
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/*
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* These values come from Windows utility provided by Dell. If any other value
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* is used then BIOS silently set timeout to 0 without any error message.
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*/
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static struct quirk_entry quirk_dell_xps13_9333 = {
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.needs_kbd_timeouts = 1,
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.kbd_timeouts = { 0, 5, 15, 60, 5 * 60, 15 * 60, -1 },
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};
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2009-01-08 10:08:56 +08:00
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static int da_command_address;
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static int da_command_code;
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static int da_num_tokens;
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static struct calling_interface_token *da_tokens;
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2009-08-19 22:06:49 +08:00
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static struct platform_driver platform_driver = {
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.driver = {
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.name = "dell-laptop",
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}
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};
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static struct platform_device *platform_device;
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2009-01-08 10:08:56 +08:00
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static struct backlight_device *dell_backlight_device;
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2013-11-17 21:00:16 +08:00
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static struct rfkill *wifi_rfkill;
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static struct rfkill *bluetooth_rfkill;
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static struct rfkill *wwan_rfkill;
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2013-11-17 21:00:26 +08:00
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static bool force_rfkill;
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module_param(force_rfkill, bool, 0444);
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MODULE_PARM_DESC(force_rfkill, "enable rfkill on non whitelisted models");
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2009-01-08 10:08:56 +08:00
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2012-03-31 04:05:04 +08:00
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static const struct dmi_system_id dell_device_table[] __initconst = {
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2009-01-08 10:08:56 +08:00
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{
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.ident = "Dell laptop",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_CHASSIS_TYPE, "8"),
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},
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},
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2010-06-24 01:02:43 +08:00
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{
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_CHASSIS_TYPE, "9"), /*Laptop*/
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},
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},
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2010-02-15 00:53:23 +08:00
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{
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.ident = "Dell Computer Corporation",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
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DMI_MATCH(DMI_CHASSIS_TYPE, "8"),
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},
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},
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2009-01-08 10:08:56 +08:00
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{ }
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};
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2011-11-14 16:25:00 +08:00
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MODULE_DEVICE_TABLE(dmi, dell_device_table);
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2009-01-08 10:08:56 +08:00
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2014-07-17 01:43:09 +08:00
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static const struct dmi_system_id dell_quirks[] __initconst = {
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2011-10-04 16:25:44 +08:00
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro V130",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V130"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro V131",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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2012-04-12 13:11:27 +08:00
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro 3350",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3350"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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2011-11-17 15:30:42 +08:00
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro 3555",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3555"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron N311z",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron N311z"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron M5110",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron M5110"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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2012-04-20 11:47:26 +08:00
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro 3360",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3360"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro 3460",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3460"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro 3560",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 3560"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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2012-05-22 12:38:51 +08:00
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{
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.callback = dmi_matched,
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.ident = "Dell Vostro 3450",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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DMI_MATCH(DMI_PRODUCT_NAME, "Dell System Vostro 3450"),
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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2012-07-13 16:39:57 +08:00
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron 5420",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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2012-08-06 09:48:58 +08:00
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5420"),
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2012-07-13 16:39:57 +08:00
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron 5520",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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2012-08-06 09:48:58 +08:00
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5520"),
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2012-07-13 16:39:57 +08:00
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron 5720",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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2012-08-06 09:48:58 +08:00
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5720"),
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2012-07-13 16:39:57 +08:00
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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.ident = "Dell Inspiron 7420",
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.matches = {
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DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
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2012-08-06 09:48:58 +08:00
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DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7420"),
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2012-07-13 16:39:57 +08:00
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},
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.driver_data = &quirk_dell_vostro_v130,
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},
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{
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.callback = dmi_matched,
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|
.ident = "Dell Inspiron 7520",
|
|
|
|
.matches = {
|
|
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
2012-08-06 09:48:58 +08:00
|
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"),
|
2012-07-13 16:39:57 +08:00
|
|
|
},
|
|
|
|
.driver_data = &quirk_dell_vostro_v130,
|
|
|
|
},
|
|
|
|
{
|
|
|
|
.callback = dmi_matched,
|
|
|
|
.ident = "Dell Inspiron 7720",
|
|
|
|
.matches = {
|
|
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
2012-08-06 09:48:58 +08:00
|
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7720"),
|
2012-07-13 16:39:57 +08:00
|
|
|
},
|
|
|
|
.driver_data = &quirk_dell_vostro_v130,
|
|
|
|
},
|
2015-02-19 18:58:29 +08:00
|
|
|
{
|
|
|
|
.callback = dmi_matched,
|
|
|
|
.ident = "Dell XPS13 9333",
|
|
|
|
.matches = {
|
|
|
|
DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
|
|
|
|
DMI_MATCH(DMI_PRODUCT_NAME, "XPS13 9333"),
|
|
|
|
},
|
|
|
|
.driver_data = &quirk_dell_xps13_9333,
|
|
|
|
},
|
2012-03-16 01:25:48 +08:00
|
|
|
{ }
|
2011-10-04 16:25:44 +08:00
|
|
|
};
|
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
static struct calling_interface_buffer *buffer;
|
2010-03-01 22:43:52 +08:00
|
|
|
static struct page *bufferpage;
|
|
|
|
static DEFINE_MUTEX(buffer_mutex);
|
2010-02-11 03:12:13 +08:00
|
|
|
|
2010-02-11 03:44:03 +08:00
|
|
|
static int hwswitch_state;
|
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
static void get_buffer(void)
|
|
|
|
{
|
|
|
|
mutex_lock(&buffer_mutex);
|
|
|
|
memset(buffer, 0, sizeof(struct calling_interface_buffer));
|
|
|
|
}
|
|
|
|
|
|
|
|
static void release_buffer(void)
|
|
|
|
{
|
|
|
|
mutex_unlock(&buffer_mutex);
|
|
|
|
}
|
|
|
|
|
2009-08-19 22:06:50 +08:00
|
|
|
static void __init parse_da_table(const struct dmi_header *dm)
|
2009-01-08 10:08:56 +08:00
|
|
|
{
|
|
|
|
/* Final token is a terminator, so we don't want to copy it */
|
|
|
|
int tokens = (dm->length-11)/sizeof(struct calling_interface_token)-1;
|
2013-03-14 21:21:00 +08:00
|
|
|
struct calling_interface_token *new_da_tokens;
|
2009-01-08 10:08:56 +08:00
|
|
|
struct calling_interface_structure *table =
|
|
|
|
container_of(dm, struct calling_interface_structure, header);
|
|
|
|
|
|
|
|
/* 4 bytes of table header, plus 7 bytes of Dell header, plus at least
|
|
|
|
6 bytes of entry */
|
|
|
|
|
|
|
|
if (dm->length < 17)
|
|
|
|
return;
|
|
|
|
|
|
|
|
da_command_address = table->cmdIOAddress;
|
|
|
|
da_command_code = table->cmdIOCode;
|
|
|
|
|
2013-03-14 21:21:00 +08:00
|
|
|
new_da_tokens = krealloc(da_tokens, (da_num_tokens + tokens) *
|
|
|
|
sizeof(struct calling_interface_token),
|
|
|
|
GFP_KERNEL);
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2013-03-14 21:21:00 +08:00
|
|
|
if (!new_da_tokens)
|
2009-01-08 10:08:56 +08:00
|
|
|
return;
|
2013-03-14 21:21:00 +08:00
|
|
|
da_tokens = new_da_tokens;
|
2009-01-08 10:08:56 +08:00
|
|
|
|
|
|
|
memcpy(da_tokens+da_num_tokens, table->tokens,
|
|
|
|
sizeof(struct calling_interface_token) * tokens);
|
|
|
|
|
|
|
|
da_num_tokens += tokens;
|
|
|
|
}
|
|
|
|
|
2009-08-19 22:06:50 +08:00
|
|
|
static void __init find_tokens(const struct dmi_header *dm, void *dummy)
|
2009-01-08 10:08:56 +08:00
|
|
|
{
|
|
|
|
switch (dm->type) {
|
|
|
|
case 0xd4: /* Indexed IO */
|
|
|
|
case 0xd5: /* Protected Area Type 1 */
|
|
|
|
case 0xd6: /* Protected Area Type 2 */
|
|
|
|
break;
|
|
|
|
case 0xda: /* Calling interface */
|
|
|
|
parse_da_table(dm);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
static int find_token_id(int tokenid)
|
2009-01-08 10:08:56 +08:00
|
|
|
{
|
|
|
|
int i;
|
2015-02-19 18:58:29 +08:00
|
|
|
|
2009-01-08 10:08:56 +08:00
|
|
|
for (i = 0; i < da_num_tokens; i++) {
|
|
|
|
if (da_tokens[i].tokenID == tokenid)
|
2015-02-19 18:58:29 +08:00
|
|
|
return i;
|
2009-01-08 10:08:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
static int find_token_location(int tokenid)
|
|
|
|
{
|
|
|
|
int id;
|
|
|
|
|
|
|
|
id = find_token_id(tokenid);
|
|
|
|
if (id == -1)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
return da_tokens[id].location;
|
|
|
|
}
|
|
|
|
|
2009-01-08 10:08:56 +08:00
|
|
|
static struct calling_interface_buffer *
|
|
|
|
dell_send_request(struct calling_interface_buffer *buffer, int class,
|
|
|
|
int select)
|
|
|
|
{
|
|
|
|
struct smi_cmd command;
|
|
|
|
|
|
|
|
command.magic = SMI_CMD_MAGIC;
|
|
|
|
command.command_address = da_command_address;
|
|
|
|
command.command_code = da_command_code;
|
|
|
|
command.ebx = virt_to_phys(buffer);
|
|
|
|
command.ecx = 0x42534931;
|
|
|
|
|
|
|
|
buffer->class = class;
|
|
|
|
buffer->select = select;
|
|
|
|
|
|
|
|
dcdbas_smi_request(&command);
|
|
|
|
|
|
|
|
return buffer;
|
|
|
|
}
|
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
static inline int dell_smi_error(int value)
|
|
|
|
{
|
|
|
|
switch (value) {
|
|
|
|
case 0: /* Completed successfully */
|
|
|
|
return 0;
|
|
|
|
case -1: /* Completed with error */
|
|
|
|
return -EIO;
|
|
|
|
case -2: /* Function not supported */
|
|
|
|
return -ENXIO;
|
|
|
|
default: /* Unknown error */
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-11-17 21:00:16 +08:00
|
|
|
/* Derived from information in DellWirelessCtl.cpp:
|
|
|
|
Class 17, select 11 is radio control. It returns an array of 32-bit values.
|
|
|
|
|
|
|
|
Input byte 0 = 0: Wireless information
|
|
|
|
|
|
|
|
result[0]: return code
|
|
|
|
result[1]:
|
|
|
|
Bit 0: Hardware switch supported
|
|
|
|
Bit 1: Wifi locator supported
|
|
|
|
Bit 2: Wifi is supported
|
|
|
|
Bit 3: Bluetooth is supported
|
|
|
|
Bit 4: WWAN is supported
|
|
|
|
Bit 5: Wireless keyboard supported
|
|
|
|
Bits 6-7: Reserved
|
|
|
|
Bit 8: Wifi is installed
|
|
|
|
Bit 9: Bluetooth is installed
|
|
|
|
Bit 10: WWAN is installed
|
|
|
|
Bits 11-15: Reserved
|
|
|
|
Bit 16: Hardware switch is on
|
|
|
|
Bit 17: Wifi is blocked
|
|
|
|
Bit 18: Bluetooth is blocked
|
|
|
|
Bit 19: WWAN is blocked
|
|
|
|
Bits 20-31: Reserved
|
|
|
|
result[2]: NVRAM size in bytes
|
|
|
|
result[3]: NVRAM format version number
|
|
|
|
|
|
|
|
Input byte 0 = 2: Wireless switch configuration
|
|
|
|
result[0]: return code
|
|
|
|
result[1]:
|
|
|
|
Bit 0: Wifi controlled by switch
|
|
|
|
Bit 1: Bluetooth controlled by switch
|
|
|
|
Bit 2: WWAN controlled by switch
|
|
|
|
Bits 3-6: Reserved
|
|
|
|
Bit 7: Wireless switch config locked
|
|
|
|
Bit 8: Wifi locator enabled
|
|
|
|
Bits 9-14: Reserved
|
|
|
|
Bit 15: Wifi locator setting locked
|
|
|
|
Bits 16-31: Reserved
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int dell_rfkill_set(void *data, bool blocked)
|
|
|
|
{
|
|
|
|
int disable = blocked ? 1 : 0;
|
|
|
|
unsigned long radio = (unsigned long)data;
|
|
|
|
int hwswitch_bit = (unsigned long)data - 1;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
|
|
|
|
/* If the hardware switch controls this radio, and the hardware
|
2013-11-17 21:00:24 +08:00
|
|
|
switch is disabled, always disable the radio */
|
2013-11-17 21:00:16 +08:00
|
|
|
if ((hwswitch_state & BIT(hwswitch_bit)) &&
|
2013-11-17 21:00:22 +08:00
|
|
|
!(buffer->output[1] & BIT(16)))
|
2013-11-17 21:00:24 +08:00
|
|
|
disable = 1;
|
2013-11-17 21:00:16 +08:00
|
|
|
|
|
|
|
buffer->input[0] = (1 | (radio<<8) | (disable << 16));
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
|
|
|
|
release_buffer();
|
2013-11-17 21:00:22 +08:00
|
|
|
return 0;
|
2013-11-17 21:00:16 +08:00
|
|
|
}
|
|
|
|
|
2013-11-17 21:00:23 +08:00
|
|
|
/* Must be called with the buffer held */
|
2013-11-17 21:00:20 +08:00
|
|
|
static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio,
|
|
|
|
int status)
|
2013-11-17 21:00:19 +08:00
|
|
|
{
|
2013-11-17 21:00:23 +08:00
|
|
|
if (status & BIT(0)) {
|
|
|
|
/* Has hw-switch, sync sw_state to BIOS */
|
|
|
|
int block = rfkill_blocked(rfkill);
|
|
|
|
buffer->input[0] = (1 | (radio << 8) | (block << 16));
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
} else {
|
2013-11-17 21:00:21 +08:00
|
|
|
/* No hw-switch, sync BIOS state to sw_state */
|
|
|
|
rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16)));
|
|
|
|
}
|
2013-11-17 21:00:20 +08:00
|
|
|
}
|
2013-11-17 21:00:19 +08:00
|
|
|
|
2013-11-17 21:00:20 +08:00
|
|
|
static void dell_rfkill_update_hw_state(struct rfkill *rfkill, int radio,
|
|
|
|
int status)
|
|
|
|
{
|
2013-11-17 21:00:19 +08:00
|
|
|
if (hwswitch_state & (BIT(radio - 1)))
|
|
|
|
rfkill_set_hw_state(rfkill, !(status & BIT(16)));
|
|
|
|
}
|
|
|
|
|
2013-11-17 21:00:16 +08:00
|
|
|
static void dell_rfkill_query(struct rfkill *rfkill, void *data)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
status = buffer->output[1];
|
|
|
|
|
2013-11-17 21:00:20 +08:00
|
|
|
dell_rfkill_update_hw_state(rfkill, (unsigned long)data, status);
|
2013-11-17 21:00:23 +08:00
|
|
|
|
|
|
|
release_buffer();
|
2013-11-17 21:00:16 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static const struct rfkill_ops dell_rfkill_ops = {
|
|
|
|
.set_block = dell_rfkill_set,
|
|
|
|
.query = dell_rfkill_query,
|
|
|
|
};
|
|
|
|
|
2010-09-28 11:43:31 +08:00
|
|
|
static struct dentry *dell_laptop_dir;
|
|
|
|
|
|
|
|
static int dell_debugfs_show(struct seq_file *s, void *data)
|
|
|
|
{
|
|
|
|
int status;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
status = buffer->output[1];
|
|
|
|
release_buffer();
|
|
|
|
|
|
|
|
seq_printf(s, "status:\t0x%X\n", status);
|
|
|
|
seq_printf(s, "Bit 0 : Hardware switch supported: %lu\n",
|
|
|
|
status & BIT(0));
|
|
|
|
seq_printf(s, "Bit 1 : Wifi locator supported: %lu\n",
|
|
|
|
(status & BIT(1)) >> 1);
|
|
|
|
seq_printf(s, "Bit 2 : Wifi is supported: %lu\n",
|
|
|
|
(status & BIT(2)) >> 2);
|
|
|
|
seq_printf(s, "Bit 3 : Bluetooth is supported: %lu\n",
|
|
|
|
(status & BIT(3)) >> 3);
|
|
|
|
seq_printf(s, "Bit 4 : WWAN is supported: %lu\n",
|
|
|
|
(status & BIT(4)) >> 4);
|
|
|
|
seq_printf(s, "Bit 5 : Wireless keyboard supported: %lu\n",
|
|
|
|
(status & BIT(5)) >> 5);
|
|
|
|
seq_printf(s, "Bit 8 : Wifi is installed: %lu\n",
|
|
|
|
(status & BIT(8)) >> 8);
|
|
|
|
seq_printf(s, "Bit 9 : Bluetooth is installed: %lu\n",
|
|
|
|
(status & BIT(9)) >> 9);
|
|
|
|
seq_printf(s, "Bit 10: WWAN is installed: %lu\n",
|
|
|
|
(status & BIT(10)) >> 10);
|
|
|
|
seq_printf(s, "Bit 16: Hardware switch is on: %lu\n",
|
|
|
|
(status & BIT(16)) >> 16);
|
|
|
|
seq_printf(s, "Bit 17: Wifi is blocked: %lu\n",
|
|
|
|
(status & BIT(17)) >> 17);
|
|
|
|
seq_printf(s, "Bit 18: Bluetooth is blocked: %lu\n",
|
|
|
|
(status & BIT(18)) >> 18);
|
|
|
|
seq_printf(s, "Bit 19: WWAN is blocked: %lu\n",
|
|
|
|
(status & BIT(19)) >> 19);
|
|
|
|
|
|
|
|
seq_printf(s, "\nhwswitch_state:\t0x%X\n", hwswitch_state);
|
|
|
|
seq_printf(s, "Bit 0 : Wifi controlled by switch: %lu\n",
|
|
|
|
hwswitch_state & BIT(0));
|
|
|
|
seq_printf(s, "Bit 1 : Bluetooth controlled by switch: %lu\n",
|
|
|
|
(hwswitch_state & BIT(1)) >> 1);
|
|
|
|
seq_printf(s, "Bit 2 : WWAN controlled by switch: %lu\n",
|
|
|
|
(hwswitch_state & BIT(2)) >> 2);
|
|
|
|
seq_printf(s, "Bit 7 : Wireless switch config locked: %lu\n",
|
|
|
|
(hwswitch_state & BIT(7)) >> 7);
|
|
|
|
seq_printf(s, "Bit 8 : Wifi locator enabled: %lu\n",
|
|
|
|
(hwswitch_state & BIT(8)) >> 8);
|
|
|
|
seq_printf(s, "Bit 15: Wifi locator setting locked: %lu\n",
|
|
|
|
(hwswitch_state & BIT(15)) >> 15);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int dell_debugfs_open(struct inode *inode, struct file *file)
|
|
|
|
{
|
|
|
|
return single_open(file, dell_debugfs_show, inode->i_private);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct file_operations dell_debugfs_fops = {
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.open = dell_debugfs_open,
|
|
|
|
.read = seq_read,
|
|
|
|
.llseek = seq_lseek,
|
|
|
|
.release = single_release,
|
|
|
|
};
|
|
|
|
|
2013-11-17 21:00:16 +08:00
|
|
|
static void dell_update_rfkill(struct work_struct *ignored)
|
|
|
|
{
|
2013-11-17 21:00:19 +08:00
|
|
|
int status;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
status = buffer->output[1];
|
|
|
|
|
2013-11-17 21:00:20 +08:00
|
|
|
if (wifi_rfkill) {
|
|
|
|
dell_rfkill_update_hw_state(wifi_rfkill, 1, status);
|
|
|
|
dell_rfkill_update_sw_state(wifi_rfkill, 1, status);
|
|
|
|
}
|
|
|
|
if (bluetooth_rfkill) {
|
|
|
|
dell_rfkill_update_hw_state(bluetooth_rfkill, 2, status);
|
|
|
|
dell_rfkill_update_sw_state(bluetooth_rfkill, 2, status);
|
|
|
|
}
|
|
|
|
if (wwan_rfkill) {
|
|
|
|
dell_rfkill_update_hw_state(wwan_rfkill, 3, status);
|
|
|
|
dell_rfkill_update_sw_state(wwan_rfkill, 3, status);
|
|
|
|
}
|
2013-11-17 21:00:23 +08:00
|
|
|
|
|
|
|
release_buffer();
|
2013-11-17 21:00:16 +08:00
|
|
|
}
|
|
|
|
static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill);
|
|
|
|
|
2013-12-25 03:34:01 +08:00
|
|
|
static bool dell_laptop_i8042_filter(unsigned char data, unsigned char str,
|
|
|
|
struct serio *port)
|
|
|
|
{
|
|
|
|
static bool extended;
|
|
|
|
|
2014-10-18 07:57:20 +08:00
|
|
|
if (str & I8042_STR_AUXDATA)
|
2013-12-25 03:34:01 +08:00
|
|
|
return false;
|
|
|
|
|
|
|
|
if (unlikely(data == 0xe0)) {
|
|
|
|
extended = true;
|
|
|
|
return false;
|
|
|
|
} else if (unlikely(extended)) {
|
|
|
|
switch (data) {
|
|
|
|
case 0x8:
|
|
|
|
schedule_delayed_work(&dell_rfkill_work,
|
|
|
|
round_jiffies_relative(HZ / 4));
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
extended = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
2013-11-17 21:00:16 +08:00
|
|
|
|
|
|
|
static int __init dell_setup_rfkill(void)
|
|
|
|
{
|
2013-12-06 19:17:27 +08:00
|
|
|
int status, ret, whitelisted;
|
2013-11-17 21:00:17 +08:00
|
|
|
const char *product;
|
|
|
|
|
|
|
|
/*
|
2013-12-06 19:17:27 +08:00
|
|
|
* rfkill support causes trouble on various models, mostly Inspirons.
|
|
|
|
* So we whitelist certain series, and don't support rfkill on others.
|
2013-11-17 21:00:17 +08:00
|
|
|
*/
|
2013-12-06 19:17:27 +08:00
|
|
|
whitelisted = 0;
|
2013-11-17 21:00:17 +08:00
|
|
|
product = dmi_get_system_info(DMI_PRODUCT_NAME);
|
2013-12-06 19:17:27 +08:00
|
|
|
if (product && (strncmp(product, "Latitude", 8) == 0 ||
|
|
|
|
strncmp(product, "Precision", 9) == 0))
|
|
|
|
whitelisted = 1;
|
|
|
|
if (!force_rfkill && !whitelisted)
|
2013-11-17 21:00:16 +08:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
status = buffer->output[1];
|
|
|
|
buffer->input[0] = 0x2;
|
|
|
|
dell_send_request(buffer, 17, 11);
|
|
|
|
hwswitch_state = buffer->output[1];
|
|
|
|
release_buffer();
|
|
|
|
|
2013-11-17 21:00:27 +08:00
|
|
|
if (!(status & BIT(0))) {
|
|
|
|
if (force_rfkill) {
|
|
|
|
/* No hwsitch, clear all hw-controlled bits */
|
|
|
|
hwswitch_state &= ~7;
|
|
|
|
} else {
|
|
|
|
/* rfkill is only tested on laptops with a hwswitch */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-11-17 21:00:16 +08:00
|
|
|
if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) {
|
|
|
|
wifi_rfkill = rfkill_alloc("dell-wifi", &platform_device->dev,
|
|
|
|
RFKILL_TYPE_WLAN,
|
|
|
|
&dell_rfkill_ops, (void *) 1);
|
|
|
|
if (!wifi_rfkill) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto err_wifi;
|
|
|
|
}
|
|
|
|
ret = rfkill_register(wifi_rfkill);
|
|
|
|
if (ret)
|
|
|
|
goto err_wifi;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((status & (1<<3|1<<9)) == (1<<3|1<<9)) {
|
|
|
|
bluetooth_rfkill = rfkill_alloc("dell-bluetooth",
|
|
|
|
&platform_device->dev,
|
|
|
|
RFKILL_TYPE_BLUETOOTH,
|
|
|
|
&dell_rfkill_ops, (void *) 2);
|
|
|
|
if (!bluetooth_rfkill) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto err_bluetooth;
|
|
|
|
}
|
|
|
|
ret = rfkill_register(bluetooth_rfkill);
|
|
|
|
if (ret)
|
|
|
|
goto err_bluetooth;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((status & (1<<4|1<<10)) == (1<<4|1<<10)) {
|
|
|
|
wwan_rfkill = rfkill_alloc("dell-wwan",
|
|
|
|
&platform_device->dev,
|
|
|
|
RFKILL_TYPE_WWAN,
|
|
|
|
&dell_rfkill_ops, (void *) 3);
|
|
|
|
if (!wwan_rfkill) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto err_wwan;
|
|
|
|
}
|
|
|
|
ret = rfkill_register(wwan_rfkill);
|
|
|
|
if (ret)
|
|
|
|
goto err_wwan;
|
|
|
|
}
|
|
|
|
|
2013-12-25 03:34:01 +08:00
|
|
|
ret = i8042_install_filter(dell_laptop_i8042_filter);
|
|
|
|
if (ret) {
|
|
|
|
pr_warn("Unable to install key filter\n");
|
|
|
|
goto err_filter;
|
|
|
|
}
|
|
|
|
|
2013-11-17 21:00:16 +08:00
|
|
|
return 0;
|
2013-12-25 03:34:01 +08:00
|
|
|
err_filter:
|
|
|
|
if (wwan_rfkill)
|
|
|
|
rfkill_unregister(wwan_rfkill);
|
2013-11-17 21:00:16 +08:00
|
|
|
err_wwan:
|
|
|
|
rfkill_destroy(wwan_rfkill);
|
|
|
|
if (bluetooth_rfkill)
|
|
|
|
rfkill_unregister(bluetooth_rfkill);
|
|
|
|
err_bluetooth:
|
|
|
|
rfkill_destroy(bluetooth_rfkill);
|
|
|
|
if (wifi_rfkill)
|
|
|
|
rfkill_unregister(wifi_rfkill);
|
|
|
|
err_wifi:
|
|
|
|
rfkill_destroy(wifi_rfkill);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dell_cleanup_rfkill(void)
|
|
|
|
{
|
|
|
|
if (wifi_rfkill) {
|
|
|
|
rfkill_unregister(wifi_rfkill);
|
|
|
|
rfkill_destroy(wifi_rfkill);
|
|
|
|
}
|
|
|
|
if (bluetooth_rfkill) {
|
|
|
|
rfkill_unregister(bluetooth_rfkill);
|
|
|
|
rfkill_destroy(bluetooth_rfkill);
|
|
|
|
}
|
|
|
|
if (wwan_rfkill) {
|
|
|
|
rfkill_unregister(wwan_rfkill);
|
|
|
|
rfkill_destroy(wwan_rfkill);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-01-08 10:08:56 +08:00
|
|
|
static int dell_send_intensity(struct backlight_device *bd)
|
|
|
|
{
|
2010-02-11 03:12:13 +08:00
|
|
|
int ret = 0;
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
get_buffer();
|
|
|
|
buffer->input[0] = find_token_location(BRIGHTNESS_TOKEN);
|
|
|
|
buffer->input[1] = bd->props.brightness;
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
if (buffer->input[0] == -1) {
|
|
|
|
ret = -ENODEV;
|
|
|
|
goto out;
|
|
|
|
}
|
2009-01-08 10:08:56 +08:00
|
|
|
|
|
|
|
if (power_supply_is_system_supplied() > 0)
|
2010-02-11 03:12:13 +08:00
|
|
|
dell_send_request(buffer, 1, 2);
|
2009-01-08 10:08:56 +08:00
|
|
|
else
|
2010-02-11 03:12:13 +08:00
|
|
|
dell_send_request(buffer, 1, 1);
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
out:
|
2010-02-11 03:12:13 +08:00
|
|
|
release_buffer();
|
2013-11-23 21:02:51 +08:00
|
|
|
return ret;
|
2009-01-08 10:08:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static int dell_get_intensity(struct backlight_device *bd)
|
|
|
|
{
|
2010-02-11 03:12:13 +08:00
|
|
|
int ret = 0;
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
get_buffer();
|
|
|
|
buffer->input[0] = find_token_location(BRIGHTNESS_TOKEN);
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
if (buffer->input[0] == -1) {
|
|
|
|
ret = -ENODEV;
|
|
|
|
goto out;
|
|
|
|
}
|
2009-01-08 10:08:56 +08:00
|
|
|
|
|
|
|
if (power_supply_is_system_supplied() > 0)
|
2010-02-11 03:12:13 +08:00
|
|
|
dell_send_request(buffer, 0, 2);
|
2009-01-08 10:08:56 +08:00
|
|
|
else
|
2010-02-11 03:12:13 +08:00
|
|
|
dell_send_request(buffer, 0, 1);
|
2009-01-08 10:08:56 +08:00
|
|
|
|
2011-07-11 02:46:51 +08:00
|
|
|
ret = buffer->output[1];
|
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
out:
|
2010-02-11 03:12:13 +08:00
|
|
|
release_buffer();
|
2011-07-11 02:46:51 +08:00
|
|
|
return ret;
|
2009-01-08 10:08:56 +08:00
|
|
|
}
|
|
|
|
|
2010-11-16 21:14:02 +08:00
|
|
|
static const struct backlight_ops dell_ops = {
|
2009-01-08 10:08:56 +08:00
|
|
|
.get_brightness = dell_get_intensity,
|
|
|
|
.update_status = dell_send_intensity,
|
|
|
|
};
|
|
|
|
|
2011-11-17 10:20:51 +08:00
|
|
|
static void touchpad_led_on(void)
|
2011-10-04 16:25:44 +08:00
|
|
|
{
|
|
|
|
int command = 0x97;
|
|
|
|
char data = 1;
|
|
|
|
i8042_command(&data, command | 1 << 12);
|
|
|
|
}
|
|
|
|
|
2011-11-17 10:20:51 +08:00
|
|
|
static void touchpad_led_off(void)
|
2011-10-04 16:25:44 +08:00
|
|
|
{
|
|
|
|
int command = 0x97;
|
|
|
|
char data = 2;
|
|
|
|
i8042_command(&data, command | 1 << 12);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void touchpad_led_set(struct led_classdev *led_cdev,
|
|
|
|
enum led_brightness value)
|
|
|
|
{
|
|
|
|
if (value > 0)
|
|
|
|
touchpad_led_on();
|
|
|
|
else
|
|
|
|
touchpad_led_off();
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct led_classdev touchpad_led = {
|
|
|
|
.name = "dell-laptop::touchpad",
|
|
|
|
.brightness_set = touchpad_led_set,
|
2012-01-17 16:18:06 +08:00
|
|
|
.flags = LED_CORE_SUSPENDRESUME,
|
2011-10-04 16:25:44 +08:00
|
|
|
};
|
|
|
|
|
2014-07-17 01:43:09 +08:00
|
|
|
static int __init touchpad_led_init(struct device *dev)
|
2011-10-04 16:25:44 +08:00
|
|
|
{
|
|
|
|
return led_classdev_register(dev, &touchpad_led);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void touchpad_led_exit(void)
|
|
|
|
{
|
|
|
|
led_classdev_unregister(&touchpad_led);
|
|
|
|
}
|
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
/*
|
|
|
|
* Derived from information in smbios-keyboard-ctl:
|
|
|
|
*
|
|
|
|
* cbClass 4
|
|
|
|
* cbSelect 11
|
|
|
|
* Keyboard illumination
|
|
|
|
* cbArg1 determines the function to be performed
|
|
|
|
*
|
|
|
|
* cbArg1 0x0 = Get Feature Information
|
|
|
|
* cbRES1 Standard return codes (0, -1, -2)
|
|
|
|
* cbRES2, word0 Bitmap of user-selectable modes
|
|
|
|
* bit 0 Always off (All systems)
|
|
|
|
* bit 1 Always on (Travis ATG, Siberia)
|
|
|
|
* bit 2 Auto: ALS-based On; ALS-based Off (Travis ATG)
|
|
|
|
* bit 3 Auto: ALS- and input-activity-based On; input-activity based Off
|
|
|
|
* bit 4 Auto: Input-activity-based On; input-activity based Off
|
|
|
|
* bit 5 Auto: Input-activity-based On (illumination level 25%); input-activity based Off
|
|
|
|
* bit 6 Auto: Input-activity-based On (illumination level 50%); input-activity based Off
|
|
|
|
* bit 7 Auto: Input-activity-based On (illumination level 75%); input-activity based Off
|
|
|
|
* bit 8 Auto: Input-activity-based On (illumination level 100%); input-activity based Off
|
|
|
|
* bits 9-15 Reserved for future use
|
|
|
|
* cbRES2, byte2 Reserved for future use
|
|
|
|
* cbRES2, byte3 Keyboard illumination type
|
|
|
|
* 0 Reserved
|
|
|
|
* 1 Tasklight
|
|
|
|
* 2 Backlight
|
|
|
|
* 3-255 Reserved for future use
|
|
|
|
* cbRES3, byte0 Supported auto keyboard illumination trigger bitmap.
|
|
|
|
* bit 0 Any keystroke
|
|
|
|
* bit 1 Touchpad activity
|
|
|
|
* bit 2 Pointing stick
|
|
|
|
* bit 3 Any mouse
|
|
|
|
* bits 4-7 Reserved for future use
|
|
|
|
* cbRES3, byte1 Supported timeout unit bitmap
|
|
|
|
* bit 0 Seconds
|
|
|
|
* bit 1 Minutes
|
|
|
|
* bit 2 Hours
|
|
|
|
* bit 3 Days
|
|
|
|
* bits 4-7 Reserved for future use
|
|
|
|
* cbRES3, byte2 Number of keyboard light brightness levels
|
|
|
|
* cbRES4, byte0 Maximum acceptable seconds value (0 if seconds not supported).
|
|
|
|
* cbRES4, byte1 Maximum acceptable minutes value (0 if minutes not supported).
|
|
|
|
* cbRES4, byte2 Maximum acceptable hours value (0 if hours not supported).
|
|
|
|
* cbRES4, byte3 Maximum acceptable days value (0 if days not supported)
|
|
|
|
*
|
|
|
|
* cbArg1 0x1 = Get Current State
|
|
|
|
* cbRES1 Standard return codes (0, -1, -2)
|
|
|
|
* cbRES2, word0 Bitmap of current mode state
|
|
|
|
* bit 0 Always off (All systems)
|
|
|
|
* bit 1 Always on (Travis ATG, Siberia)
|
|
|
|
* bit 2 Auto: ALS-based On; ALS-based Off (Travis ATG)
|
|
|
|
* bit 3 Auto: ALS- and input-activity-based On; input-activity based Off
|
|
|
|
* bit 4 Auto: Input-activity-based On; input-activity based Off
|
|
|
|
* bit 5 Auto: Input-activity-based On (illumination level 25%); input-activity based Off
|
|
|
|
* bit 6 Auto: Input-activity-based On (illumination level 50%); input-activity based Off
|
|
|
|
* bit 7 Auto: Input-activity-based On (illumination level 75%); input-activity based Off
|
|
|
|
* bit 8 Auto: Input-activity-based On (illumination level 100%); input-activity based Off
|
|
|
|
* bits 9-15 Reserved for future use
|
|
|
|
* Note: Only One bit can be set
|
|
|
|
* cbRES2, byte2 Currently active auto keyboard illumination triggers.
|
|
|
|
* bit 0 Any keystroke
|
|
|
|
* bit 1 Touchpad activity
|
|
|
|
* bit 2 Pointing stick
|
|
|
|
* bit 3 Any mouse
|
|
|
|
* bits 4-7 Reserved for future use
|
|
|
|
* cbRES2, byte3 Current Timeout
|
|
|
|
* bits 7:6 Timeout units indicator:
|
|
|
|
* 00b Seconds
|
|
|
|
* 01b Minutes
|
|
|
|
* 10b Hours
|
|
|
|
* 11b Days
|
|
|
|
* bits 5:0 Timeout value (0-63) in sec/min/hr/day
|
|
|
|
* NOTE: A value of 0 means always on (no timeout) if any bits of RES3 byte
|
|
|
|
* are set upon return from the [Get feature information] call.
|
|
|
|
* cbRES3, byte0 Current setting of ALS value that turns the light on or off.
|
|
|
|
* cbRES3, byte1 Current ALS reading
|
|
|
|
* cbRES3, byte2 Current keyboard light level.
|
|
|
|
*
|
|
|
|
* cbArg1 0x2 = Set New State
|
|
|
|
* cbRES1 Standard return codes (0, -1, -2)
|
|
|
|
* cbArg2, word0 Bitmap of current mode state
|
|
|
|
* bit 0 Always off (All systems)
|
|
|
|
* bit 1 Always on (Travis ATG, Siberia)
|
|
|
|
* bit 2 Auto: ALS-based On; ALS-based Off (Travis ATG)
|
|
|
|
* bit 3 Auto: ALS- and input-activity-based On; input-activity based Off
|
|
|
|
* bit 4 Auto: Input-activity-based On; input-activity based Off
|
|
|
|
* bit 5 Auto: Input-activity-based On (illumination level 25%); input-activity based Off
|
|
|
|
* bit 6 Auto: Input-activity-based On (illumination level 50%); input-activity based Off
|
|
|
|
* bit 7 Auto: Input-activity-based On (illumination level 75%); input-activity based Off
|
|
|
|
* bit 8 Auto: Input-activity-based On (illumination level 100%); input-activity based Off
|
|
|
|
* bits 9-15 Reserved for future use
|
|
|
|
* Note: Only One bit can be set
|
|
|
|
* cbArg2, byte2 Desired auto keyboard illumination triggers. Must remain inactive to allow
|
|
|
|
* keyboard to turn off automatically.
|
|
|
|
* bit 0 Any keystroke
|
|
|
|
* bit 1 Touchpad activity
|
|
|
|
* bit 2 Pointing stick
|
|
|
|
* bit 3 Any mouse
|
|
|
|
* bits 4-7 Reserved for future use
|
|
|
|
* cbArg2, byte3 Desired Timeout
|
|
|
|
* bits 7:6 Timeout units indicator:
|
|
|
|
* 00b Seconds
|
|
|
|
* 01b Minutes
|
|
|
|
* 10b Hours
|
|
|
|
* 11b Days
|
|
|
|
* bits 5:0 Timeout value (0-63) in sec/min/hr/day
|
|
|
|
* cbArg3, byte0 Desired setting of ALS value that turns the light on or off.
|
|
|
|
* cbArg3, byte2 Desired keyboard light level.
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
|
|
enum kbd_timeout_unit {
|
|
|
|
KBD_TIMEOUT_SECONDS = 0,
|
|
|
|
KBD_TIMEOUT_MINUTES,
|
|
|
|
KBD_TIMEOUT_HOURS,
|
|
|
|
KBD_TIMEOUT_DAYS,
|
|
|
|
};
|
|
|
|
|
|
|
|
enum kbd_mode_bit {
|
|
|
|
KBD_MODE_BIT_OFF = 0,
|
|
|
|
KBD_MODE_BIT_ON,
|
|
|
|
KBD_MODE_BIT_ALS,
|
|
|
|
KBD_MODE_BIT_TRIGGER_ALS,
|
|
|
|
KBD_MODE_BIT_TRIGGER,
|
|
|
|
KBD_MODE_BIT_TRIGGER_25,
|
|
|
|
KBD_MODE_BIT_TRIGGER_50,
|
|
|
|
KBD_MODE_BIT_TRIGGER_75,
|
|
|
|
KBD_MODE_BIT_TRIGGER_100,
|
|
|
|
};
|
|
|
|
|
|
|
|
#define kbd_is_als_mode_bit(bit) \
|
|
|
|
((bit) == KBD_MODE_BIT_ALS || (bit) == KBD_MODE_BIT_TRIGGER_ALS)
|
|
|
|
#define kbd_is_trigger_mode_bit(bit) \
|
|
|
|
((bit) >= KBD_MODE_BIT_TRIGGER_ALS && (bit) <= KBD_MODE_BIT_TRIGGER_100)
|
|
|
|
#define kbd_is_level_mode_bit(bit) \
|
|
|
|
((bit) >= KBD_MODE_BIT_TRIGGER_25 && (bit) <= KBD_MODE_BIT_TRIGGER_100)
|
|
|
|
|
|
|
|
struct kbd_info {
|
|
|
|
u16 modes;
|
|
|
|
u8 type;
|
|
|
|
u8 triggers;
|
|
|
|
u8 levels;
|
|
|
|
u8 seconds;
|
|
|
|
u8 minutes;
|
|
|
|
u8 hours;
|
|
|
|
u8 days;
|
|
|
|
};
|
|
|
|
|
|
|
|
struct kbd_state {
|
|
|
|
u8 mode_bit;
|
|
|
|
u8 triggers;
|
|
|
|
u8 timeout_value;
|
|
|
|
u8 timeout_unit;
|
|
|
|
u8 als_setting;
|
|
|
|
u8 als_value;
|
|
|
|
u8 level;
|
|
|
|
};
|
|
|
|
|
|
|
|
static const int kbd_tokens[] = {
|
|
|
|
KBD_LED_OFF_TOKEN,
|
|
|
|
KBD_LED_AUTO_25_TOKEN,
|
|
|
|
KBD_LED_AUTO_50_TOKEN,
|
|
|
|
KBD_LED_AUTO_75_TOKEN,
|
|
|
|
KBD_LED_AUTO_100_TOKEN,
|
|
|
|
KBD_LED_ON_TOKEN,
|
|
|
|
};
|
|
|
|
|
|
|
|
static u16 kbd_token_bits;
|
|
|
|
|
|
|
|
static struct kbd_info kbd_info;
|
|
|
|
static bool kbd_als_supported;
|
|
|
|
static bool kbd_triggers_supported;
|
|
|
|
|
|
|
|
static u8 kbd_mode_levels[16];
|
|
|
|
static int kbd_mode_levels_count;
|
|
|
|
|
|
|
|
static u8 kbd_previous_level;
|
|
|
|
static u8 kbd_previous_mode_bit;
|
|
|
|
|
|
|
|
static bool kbd_led_present;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* NOTE: there are three ways to set the keyboard backlight level.
|
|
|
|
* First, via kbd_state.mode_bit (assigning KBD_MODE_BIT_TRIGGER_* value).
|
|
|
|
* Second, via kbd_state.level (assigning numerical value <= kbd_info.levels).
|
|
|
|
* Third, via SMBIOS tokens (KBD_LED_* in kbd_tokens)
|
|
|
|
*
|
|
|
|
* There are laptops which support only one of these methods. If we want to
|
|
|
|
* support as many machines as possible we need to implement all three methods.
|
|
|
|
* The first two methods use the kbd_state structure. The third uses SMBIOS
|
|
|
|
* tokens. If kbd_info.levels == 0, the machine does not support setting the
|
|
|
|
* keyboard backlight level via kbd_state.level.
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int kbd_get_info(struct kbd_info *info)
|
|
|
|
{
|
|
|
|
u8 units;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
|
|
|
|
buffer->input[0] = 0x0;
|
|
|
|
dell_send_request(buffer, 4, 11);
|
|
|
|
ret = buffer->output[0];
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
ret = dell_smi_error(ret);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
info->modes = buffer->output[1] & 0xFFFF;
|
|
|
|
info->type = (buffer->output[1] >> 24) & 0xFF;
|
|
|
|
info->triggers = buffer->output[2] & 0xFF;
|
|
|
|
units = (buffer->output[2] >> 8) & 0xFF;
|
|
|
|
info->levels = (buffer->output[2] >> 16) & 0xFF;
|
|
|
|
|
|
|
|
if (units & BIT(0))
|
|
|
|
info->seconds = (buffer->output[3] >> 0) & 0xFF;
|
|
|
|
if (units & BIT(1))
|
|
|
|
info->minutes = (buffer->output[3] >> 8) & 0xFF;
|
|
|
|
if (units & BIT(2))
|
|
|
|
info->hours = (buffer->output[3] >> 16) & 0xFF;
|
|
|
|
if (units & BIT(3))
|
|
|
|
info->days = (buffer->output[3] >> 24) & 0xFF;
|
|
|
|
|
|
|
|
out:
|
|
|
|
release_buffer();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int kbd_get_max_level(void)
|
|
|
|
{
|
|
|
|
if (kbd_info.levels != 0)
|
|
|
|
return kbd_info.levels;
|
|
|
|
if (kbd_mode_levels_count > 0)
|
|
|
|
return kbd_mode_levels_count - 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_get_level(struct kbd_state *state)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (kbd_info.levels != 0)
|
|
|
|
return state->level;
|
|
|
|
|
|
|
|
if (kbd_mode_levels_count > 0) {
|
|
|
|
for (i = 0; i < kbd_mode_levels_count; ++i)
|
|
|
|
if (kbd_mode_levels[i] == state->mode_bit)
|
|
|
|
return i;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_set_level(struct kbd_state *state, u8 level)
|
|
|
|
{
|
|
|
|
if (kbd_info.levels != 0) {
|
|
|
|
if (level != 0)
|
|
|
|
kbd_previous_level = level;
|
|
|
|
if (state->level == level)
|
|
|
|
return 0;
|
|
|
|
state->level = level;
|
|
|
|
if (level != 0 && state->mode_bit == KBD_MODE_BIT_OFF)
|
|
|
|
state->mode_bit = kbd_previous_mode_bit;
|
|
|
|
else if (level == 0 && state->mode_bit != KBD_MODE_BIT_OFF) {
|
|
|
|
kbd_previous_mode_bit = state->mode_bit;
|
|
|
|
state->mode_bit = KBD_MODE_BIT_OFF;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (kbd_mode_levels_count > 0 && level < kbd_mode_levels_count) {
|
|
|
|
if (level != 0)
|
|
|
|
kbd_previous_level = level;
|
|
|
|
state->mode_bit = kbd_mode_levels[level];
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_get_state(struct kbd_state *state)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
|
|
|
|
buffer->input[0] = 0x1;
|
|
|
|
dell_send_request(buffer, 4, 11);
|
|
|
|
ret = buffer->output[0];
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
ret = dell_smi_error(ret);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
state->mode_bit = ffs(buffer->output[1] & 0xFFFF);
|
|
|
|
if (state->mode_bit != 0)
|
|
|
|
state->mode_bit--;
|
|
|
|
|
|
|
|
state->triggers = (buffer->output[1] >> 16) & 0xFF;
|
|
|
|
state->timeout_value = (buffer->output[1] >> 24) & 0x3F;
|
|
|
|
state->timeout_unit = (buffer->output[1] >> 30) & 0x3;
|
|
|
|
state->als_setting = buffer->output[2] & 0xFF;
|
|
|
|
state->als_value = (buffer->output[2] >> 8) & 0xFF;
|
|
|
|
state->level = (buffer->output[2] >> 16) & 0xFF;
|
|
|
|
|
|
|
|
out:
|
|
|
|
release_buffer();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_set_state(struct kbd_state *state)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
buffer->input[0] = 0x2;
|
|
|
|
buffer->input[1] = BIT(state->mode_bit) & 0xFFFF;
|
|
|
|
buffer->input[1] |= (state->triggers & 0xFF) << 16;
|
|
|
|
buffer->input[1] |= (state->timeout_value & 0x3F) << 24;
|
|
|
|
buffer->input[1] |= (state->timeout_unit & 0x3) << 30;
|
|
|
|
buffer->input[2] = state->als_setting & 0xFF;
|
|
|
|
buffer->input[2] |= (state->level & 0xFF) << 16;
|
|
|
|
dell_send_request(buffer, 4, 11);
|
|
|
|
ret = buffer->output[0];
|
|
|
|
release_buffer();
|
|
|
|
|
|
|
|
return dell_smi_error(ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_set_state_safe(struct kbd_state *state, struct kbd_state *old)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = kbd_set_state(state);
|
|
|
|
if (ret == 0)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* When setting the new state fails,try to restore the previous one.
|
|
|
|
* This is needed on some machines where BIOS sets a default state when
|
|
|
|
* setting a new state fails. This default state could be all off.
|
|
|
|
*/
|
|
|
|
|
|
|
|
if (kbd_set_state(old))
|
|
|
|
pr_err("Setting old previous keyboard state failed\n");
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_set_token_bit(u8 bit)
|
|
|
|
{
|
|
|
|
int id;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (bit >= ARRAY_SIZE(kbd_tokens))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
id = find_token_id(kbd_tokens[bit]);
|
|
|
|
if (id == -1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
buffer->input[0] = da_tokens[id].location;
|
|
|
|
buffer->input[1] = da_tokens[id].value;
|
|
|
|
dell_send_request(buffer, 1, 0);
|
|
|
|
ret = buffer->output[0];
|
|
|
|
release_buffer();
|
|
|
|
|
|
|
|
return dell_smi_error(ret);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_get_token_bit(u8 bit)
|
|
|
|
{
|
|
|
|
int id;
|
|
|
|
int ret;
|
|
|
|
int val;
|
|
|
|
|
|
|
|
if (bit >= ARRAY_SIZE(kbd_tokens))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
id = find_token_id(kbd_tokens[bit]);
|
|
|
|
if (id == -1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
get_buffer();
|
|
|
|
buffer->input[0] = da_tokens[id].location;
|
|
|
|
dell_send_request(buffer, 0, 0);
|
|
|
|
ret = buffer->output[0];
|
|
|
|
val = buffer->output[1];
|
|
|
|
release_buffer();
|
|
|
|
|
|
|
|
if (ret)
|
|
|
|
return dell_smi_error(ret);
|
|
|
|
|
|
|
|
return (val == da_tokens[id].value);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_get_first_active_token_bit(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(kbd_tokens); ++i) {
|
|
|
|
ret = kbd_get_token_bit(i);
|
|
|
|
if (ret == 1)
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int kbd_get_valid_token_counts(void)
|
|
|
|
{
|
|
|
|
return hweight16(kbd_token_bits);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int kbd_init_info(void)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
int ret;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
ret = kbd_get_info(&kbd_info);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
kbd_get_state(&state);
|
|
|
|
|
|
|
|
/* NOTE: timeout value is stored in 6 bits so max value is 63 */
|
|
|
|
if (kbd_info.seconds > 63)
|
|
|
|
kbd_info.seconds = 63;
|
|
|
|
if (kbd_info.minutes > 63)
|
|
|
|
kbd_info.minutes = 63;
|
|
|
|
if (kbd_info.hours > 63)
|
|
|
|
kbd_info.hours = 63;
|
|
|
|
if (kbd_info.days > 63)
|
|
|
|
kbd_info.days = 63;
|
|
|
|
|
|
|
|
/* NOTE: On tested machines ON mode did not work and caused
|
|
|
|
* problems (turned backlight off) so do not use it
|
|
|
|
*/
|
|
|
|
kbd_info.modes &= ~BIT(KBD_MODE_BIT_ON);
|
|
|
|
|
|
|
|
kbd_previous_level = kbd_get_level(&state);
|
|
|
|
kbd_previous_mode_bit = state.mode_bit;
|
|
|
|
|
|
|
|
if (kbd_previous_level == 0 && kbd_get_max_level() != 0)
|
|
|
|
kbd_previous_level = 1;
|
|
|
|
|
|
|
|
if (kbd_previous_mode_bit == KBD_MODE_BIT_OFF) {
|
|
|
|
kbd_previous_mode_bit =
|
|
|
|
ffs(kbd_info.modes & ~BIT(KBD_MODE_BIT_OFF));
|
|
|
|
if (kbd_previous_mode_bit != 0)
|
|
|
|
kbd_previous_mode_bit--;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (kbd_info.modes & (BIT(KBD_MODE_BIT_ALS) |
|
|
|
|
BIT(KBD_MODE_BIT_TRIGGER_ALS)))
|
|
|
|
kbd_als_supported = true;
|
|
|
|
|
|
|
|
if (kbd_info.modes & (
|
|
|
|
BIT(KBD_MODE_BIT_TRIGGER_ALS) | BIT(KBD_MODE_BIT_TRIGGER) |
|
|
|
|
BIT(KBD_MODE_BIT_TRIGGER_25) | BIT(KBD_MODE_BIT_TRIGGER_50) |
|
|
|
|
BIT(KBD_MODE_BIT_TRIGGER_75) | BIT(KBD_MODE_BIT_TRIGGER_100)
|
|
|
|
))
|
|
|
|
kbd_triggers_supported = true;
|
|
|
|
|
|
|
|
/* kbd_mode_levels[0] is reserved, see below */
|
|
|
|
for (i = 0; i < 16; ++i)
|
|
|
|
if (kbd_is_level_mode_bit(i) && (BIT(i) & kbd_info.modes))
|
|
|
|
kbd_mode_levels[1 + kbd_mode_levels_count++] = i;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Find the first supported mode and assign to kbd_mode_levels[0].
|
|
|
|
* This should be 0 (off), but we cannot depend on the BIOS to
|
|
|
|
* support 0.
|
|
|
|
*/
|
|
|
|
if (kbd_mode_levels_count > 0) {
|
|
|
|
for (i = 0; i < 16; ++i) {
|
|
|
|
if (BIT(i) & kbd_info.modes) {
|
|
|
|
kbd_mode_levels[0] = i;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
kbd_mode_levels_count++;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void kbd_init_tokens(void)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < ARRAY_SIZE(kbd_tokens); ++i)
|
|
|
|
if (find_token_id(kbd_tokens[i]) != -1)
|
|
|
|
kbd_token_bits |= BIT(i);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void kbd_init(void)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = kbd_init_info();
|
|
|
|
kbd_init_tokens();
|
|
|
|
|
|
|
|
if (kbd_token_bits != 0 || ret == 0)
|
|
|
|
kbd_led_present = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t kbd_led_timeout_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
struct kbd_state new_state;
|
|
|
|
struct kbd_state state;
|
|
|
|
bool convert;
|
|
|
|
int value;
|
|
|
|
int ret;
|
|
|
|
char ch;
|
|
|
|
u8 unit;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
ret = sscanf(buf, "%d %c", &value, &ch);
|
|
|
|
if (ret < 1)
|
|
|
|
return -EINVAL;
|
|
|
|
else if (ret == 1)
|
|
|
|
ch = 's';
|
|
|
|
|
|
|
|
if (value < 0)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
convert = false;
|
|
|
|
|
|
|
|
switch (ch) {
|
|
|
|
case 's':
|
|
|
|
if (value > kbd_info.seconds)
|
|
|
|
convert = true;
|
|
|
|
unit = KBD_TIMEOUT_SECONDS;
|
|
|
|
break;
|
|
|
|
case 'm':
|
|
|
|
if (value > kbd_info.minutes)
|
|
|
|
convert = true;
|
|
|
|
unit = KBD_TIMEOUT_MINUTES;
|
|
|
|
break;
|
|
|
|
case 'h':
|
|
|
|
if (value > kbd_info.hours)
|
|
|
|
convert = true;
|
|
|
|
unit = KBD_TIMEOUT_HOURS;
|
|
|
|
break;
|
|
|
|
case 'd':
|
|
|
|
if (value > kbd_info.days)
|
|
|
|
convert = true;
|
|
|
|
unit = KBD_TIMEOUT_DAYS;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (quirks && quirks->needs_kbd_timeouts)
|
|
|
|
convert = true;
|
|
|
|
|
|
|
|
if (convert) {
|
|
|
|
/* Convert value from current units to seconds */
|
|
|
|
switch (unit) {
|
|
|
|
case KBD_TIMEOUT_DAYS:
|
|
|
|
value *= 24;
|
|
|
|
case KBD_TIMEOUT_HOURS:
|
|
|
|
value *= 60;
|
|
|
|
case KBD_TIMEOUT_MINUTES:
|
|
|
|
value *= 60;
|
|
|
|
unit = KBD_TIMEOUT_SECONDS;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (quirks && quirks->needs_kbd_timeouts) {
|
|
|
|
for (i = 0; quirks->kbd_timeouts[i] != -1; i++) {
|
|
|
|
if (value <= quirks->kbd_timeouts[i]) {
|
|
|
|
value = quirks->kbd_timeouts[i];
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (value <= kbd_info.seconds && kbd_info.seconds) {
|
|
|
|
unit = KBD_TIMEOUT_SECONDS;
|
|
|
|
} else if (value / 60 <= kbd_info.minutes && kbd_info.minutes) {
|
|
|
|
value /= 60;
|
|
|
|
unit = KBD_TIMEOUT_MINUTES;
|
|
|
|
} else if (value / (60 * 60) <= kbd_info.hours && kbd_info.hours) {
|
|
|
|
value /= (60 * 60);
|
|
|
|
unit = KBD_TIMEOUT_HOURS;
|
|
|
|
} else if (value / (60 * 60 * 24) <= kbd_info.days && kbd_info.days) {
|
|
|
|
value /= (60 * 60 * 24);
|
|
|
|
unit = KBD_TIMEOUT_DAYS;
|
|
|
|
} else {
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
new_state = state;
|
|
|
|
new_state.timeout_value = value;
|
|
|
|
new_state.timeout_unit = unit;
|
|
|
|
|
|
|
|
ret = kbd_set_state_safe(&new_state, &state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t kbd_led_timeout_show(struct device *dev,
|
|
|
|
struct device_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
int ret;
|
|
|
|
int len;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
len = sprintf(buf, "%d", state.timeout_value);
|
|
|
|
|
|
|
|
switch (state.timeout_unit) {
|
|
|
|
case KBD_TIMEOUT_SECONDS:
|
|
|
|
return len + sprintf(buf+len, "s\n");
|
|
|
|
case KBD_TIMEOUT_MINUTES:
|
|
|
|
return len + sprintf(buf+len, "m\n");
|
|
|
|
case KBD_TIMEOUT_HOURS:
|
|
|
|
return len + sprintf(buf+len, "h\n");
|
|
|
|
case KBD_TIMEOUT_DAYS:
|
|
|
|
return len + sprintf(buf+len, "d\n");
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DEVICE_ATTR(stop_timeout, S_IRUGO | S_IWUSR,
|
|
|
|
kbd_led_timeout_show, kbd_led_timeout_store);
|
|
|
|
|
|
|
|
static const char * const kbd_led_triggers[] = {
|
|
|
|
"keyboard",
|
|
|
|
"touchpad",
|
|
|
|
/*"trackstick"*/ NULL, /* NOTE: trackstick is just alias for touchpad */
|
|
|
|
"mouse",
|
|
|
|
};
|
|
|
|
|
|
|
|
static ssize_t kbd_led_triggers_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
struct kbd_state new_state;
|
|
|
|
struct kbd_state state;
|
|
|
|
bool triggers_enabled = false;
|
|
|
|
int trigger_bit = -1;
|
|
|
|
char trigger[21];
|
|
|
|
int i, ret;
|
|
|
|
|
|
|
|
ret = sscanf(buf, "%20s", trigger);
|
|
|
|
if (ret != 1)
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
if (trigger[0] != '+' && trigger[0] != '-')
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (kbd_triggers_supported)
|
|
|
|
triggers_enabled = kbd_is_trigger_mode_bit(state.mode_bit);
|
|
|
|
|
|
|
|
if (kbd_triggers_supported) {
|
|
|
|
for (i = 0; i < ARRAY_SIZE(kbd_led_triggers); ++i) {
|
|
|
|
if (!(kbd_info.triggers & BIT(i)))
|
|
|
|
continue;
|
|
|
|
if (!kbd_led_triggers[i])
|
|
|
|
continue;
|
|
|
|
if (strcmp(trigger+1, kbd_led_triggers[i]) != 0)
|
|
|
|
continue;
|
|
|
|
if (trigger[0] == '+' &&
|
|
|
|
triggers_enabled && (state.triggers & BIT(i)))
|
|
|
|
return count;
|
|
|
|
if (trigger[0] == '-' &&
|
|
|
|
(!triggers_enabled || !(state.triggers & BIT(i))))
|
|
|
|
return count;
|
|
|
|
trigger_bit = i;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (trigger_bit != -1) {
|
|
|
|
new_state = state;
|
|
|
|
if (trigger[0] == '+')
|
|
|
|
new_state.triggers |= BIT(trigger_bit);
|
|
|
|
else {
|
|
|
|
new_state.triggers &= ~BIT(trigger_bit);
|
|
|
|
/* NOTE: trackstick bit (2) must be disabled when
|
|
|
|
* disabling touchpad bit (1), otherwise touchpad
|
|
|
|
* bit (1) will not be disabled */
|
|
|
|
if (trigger_bit == 1)
|
|
|
|
new_state.triggers &= ~BIT(2);
|
|
|
|
}
|
|
|
|
if ((kbd_info.triggers & new_state.triggers) !=
|
|
|
|
new_state.triggers)
|
|
|
|
return -EINVAL;
|
|
|
|
if (new_state.triggers && !triggers_enabled) {
|
|
|
|
new_state.mode_bit = KBD_MODE_BIT_TRIGGER;
|
|
|
|
kbd_set_level(&new_state, kbd_previous_level);
|
|
|
|
} else if (new_state.triggers == 0) {
|
|
|
|
kbd_set_level(&new_state, 0);
|
|
|
|
}
|
|
|
|
if (!(kbd_info.modes & BIT(new_state.mode_bit)))
|
|
|
|
return -EINVAL;
|
|
|
|
ret = kbd_set_state_safe(&new_state, &state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
if (new_state.mode_bit != KBD_MODE_BIT_OFF)
|
|
|
|
kbd_previous_mode_bit = new_state.mode_bit;
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t kbd_led_triggers_show(struct device *dev,
|
|
|
|
struct device_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
bool triggers_enabled;
|
|
|
|
int level, i, ret;
|
|
|
|
int len = 0;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
len = 0;
|
|
|
|
|
|
|
|
if (kbd_triggers_supported) {
|
|
|
|
triggers_enabled = kbd_is_trigger_mode_bit(state.mode_bit);
|
|
|
|
level = kbd_get_level(&state);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(kbd_led_triggers); ++i) {
|
|
|
|
if (!(kbd_info.triggers & BIT(i)))
|
|
|
|
continue;
|
|
|
|
if (!kbd_led_triggers[i])
|
|
|
|
continue;
|
|
|
|
if ((triggers_enabled || level <= 0) &&
|
|
|
|
(state.triggers & BIT(i)))
|
|
|
|
buf[len++] = '+';
|
|
|
|
else
|
|
|
|
buf[len++] = '-';
|
|
|
|
len += sprintf(buf+len, "%s ", kbd_led_triggers[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (len)
|
|
|
|
buf[len - 1] = '\n';
|
|
|
|
|
|
|
|
return len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static DEVICE_ATTR(start_triggers, S_IRUGO | S_IWUSR,
|
|
|
|
kbd_led_triggers_show, kbd_led_triggers_store);
|
|
|
|
|
|
|
|
static ssize_t kbd_led_als_enabled_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
struct kbd_state new_state;
|
|
|
|
struct kbd_state state;
|
|
|
|
bool triggers_enabled = false;
|
|
|
|
int enable;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = kstrtoint(buf, 0, &enable);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (enable == kbd_is_als_mode_bit(state.mode_bit))
|
|
|
|
return count;
|
|
|
|
|
|
|
|
new_state = state;
|
|
|
|
|
|
|
|
if (kbd_triggers_supported)
|
|
|
|
triggers_enabled = kbd_is_trigger_mode_bit(state.mode_bit);
|
|
|
|
|
|
|
|
if (enable) {
|
|
|
|
if (triggers_enabled)
|
|
|
|
new_state.mode_bit = KBD_MODE_BIT_TRIGGER_ALS;
|
|
|
|
else
|
|
|
|
new_state.mode_bit = KBD_MODE_BIT_ALS;
|
|
|
|
} else {
|
|
|
|
if (triggers_enabled) {
|
|
|
|
new_state.mode_bit = KBD_MODE_BIT_TRIGGER;
|
|
|
|
kbd_set_level(&new_state, kbd_previous_level);
|
|
|
|
} else {
|
|
|
|
new_state.mode_bit = KBD_MODE_BIT_ON;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!(kbd_info.modes & BIT(new_state.mode_bit)))
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
ret = kbd_set_state_safe(&new_state, &state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
kbd_previous_mode_bit = new_state.mode_bit;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t kbd_led_als_enabled_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
bool enabled = false;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
enabled = kbd_is_als_mode_bit(state.mode_bit);
|
|
|
|
|
|
|
|
return sprintf(buf, "%d\n", enabled ? 1 : 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static DEVICE_ATTR(als_enabled, S_IRUGO | S_IWUSR,
|
|
|
|
kbd_led_als_enabled_show, kbd_led_als_enabled_store);
|
|
|
|
|
|
|
|
static ssize_t kbd_led_als_setting_store(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
struct kbd_state new_state;
|
|
|
|
u8 setting;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = kstrtou8(buf, 10, &setting);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
new_state = state;
|
|
|
|
new_state.als_setting = setting;
|
|
|
|
|
|
|
|
ret = kbd_set_state_safe(&new_state, &state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t kbd_led_als_setting_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
return sprintf(buf, "%d\n", state.als_setting);
|
|
|
|
}
|
|
|
|
|
|
|
|
static DEVICE_ATTR(als_setting, S_IRUGO | S_IWUSR,
|
|
|
|
kbd_led_als_setting_show, kbd_led_als_setting_store);
|
|
|
|
|
|
|
|
static struct attribute *kbd_led_attrs[] = {
|
|
|
|
&dev_attr_stop_timeout.attr,
|
|
|
|
&dev_attr_start_triggers.attr,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group kbd_led_group = {
|
|
|
|
.attrs = kbd_led_attrs,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct attribute *kbd_led_als_attrs[] = {
|
|
|
|
&dev_attr_als_enabled.attr,
|
|
|
|
&dev_attr_als_setting.attr,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group kbd_led_als_group = {
|
|
|
|
.attrs = kbd_led_als_attrs,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group *kbd_led_groups[] = {
|
|
|
|
&kbd_led_group,
|
|
|
|
&kbd_led_als_group,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
static enum led_brightness kbd_led_level_get(struct led_classdev *led_cdev)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
u16 num;
|
|
|
|
struct kbd_state state;
|
|
|
|
|
|
|
|
if (kbd_get_max_level()) {
|
|
|
|
ret = kbd_get_state(&state);
|
|
|
|
if (ret)
|
|
|
|
return 0;
|
|
|
|
ret = kbd_get_level(&state);
|
|
|
|
if (ret < 0)
|
|
|
|
return 0;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (kbd_get_valid_token_counts()) {
|
|
|
|
ret = kbd_get_first_active_token_bit();
|
|
|
|
if (ret < 0)
|
|
|
|
return 0;
|
|
|
|
for (num = kbd_token_bits; num != 0 && ret > 0; --ret)
|
|
|
|
num &= num - 1; /* clear the first bit set */
|
|
|
|
if (num == 0)
|
|
|
|
return 0;
|
|
|
|
return ffs(num) - 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
pr_warn("Keyboard brightness level control not supported\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void kbd_led_level_set(struct led_classdev *led_cdev,
|
|
|
|
enum led_brightness value)
|
|
|
|
{
|
|
|
|
struct kbd_state state;
|
|
|
|
struct kbd_state new_state;
|
|
|
|
u16 num;
|
|
|
|
|
|
|
|
if (kbd_get_max_level()) {
|
|
|
|
if (kbd_get_state(&state))
|
|
|
|
return;
|
|
|
|
new_state = state;
|
|
|
|
if (kbd_set_level(&new_state, value))
|
|
|
|
return;
|
|
|
|
kbd_set_state_safe(&new_state, &state);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (kbd_get_valid_token_counts()) {
|
|
|
|
for (num = kbd_token_bits; num != 0 && value > 0; --value)
|
|
|
|
num &= num - 1; /* clear the first bit set */
|
|
|
|
if (num == 0)
|
|
|
|
return;
|
|
|
|
kbd_set_token_bit(ffs(num) - 1);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
pr_warn("Keyboard brightness level control not supported\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct led_classdev kbd_led = {
|
|
|
|
.name = "dell::kbd_backlight",
|
|
|
|
.brightness_set = kbd_led_level_set,
|
|
|
|
.brightness_get = kbd_led_level_get,
|
|
|
|
.groups = kbd_led_groups,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init kbd_led_init(struct device *dev)
|
|
|
|
{
|
|
|
|
kbd_init();
|
|
|
|
if (!kbd_led_present)
|
|
|
|
return -ENODEV;
|
|
|
|
if (!kbd_als_supported)
|
|
|
|
kbd_led_groups[1] = NULL;
|
|
|
|
kbd_led.max_brightness = kbd_get_max_level();
|
|
|
|
if (!kbd_led.max_brightness) {
|
|
|
|
kbd_led.max_brightness = kbd_get_valid_token_counts();
|
|
|
|
if (kbd_led.max_brightness)
|
|
|
|
kbd_led.max_brightness--;
|
|
|
|
}
|
|
|
|
return led_classdev_register(dev, &kbd_led);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void brightness_set_exit(struct led_classdev *led_cdev,
|
|
|
|
enum led_brightness value)
|
|
|
|
{
|
|
|
|
/* Don't change backlight level on exit */
|
|
|
|
};
|
|
|
|
|
|
|
|
static void kbd_led_exit(void)
|
|
|
|
{
|
|
|
|
if (!kbd_led_present)
|
|
|
|
return;
|
|
|
|
kbd_led.brightness_set = brightness_set_exit;
|
|
|
|
led_classdev_unregister(&kbd_led);
|
|
|
|
}
|
|
|
|
|
2009-01-08 10:08:56 +08:00
|
|
|
static int __init dell_init(void)
|
|
|
|
{
|
|
|
|
int max_intensity = 0;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (!dmi_check_system(dell_device_table))
|
|
|
|
return -ENODEV;
|
|
|
|
|
2011-10-04 16:25:44 +08:00
|
|
|
quirks = NULL;
|
|
|
|
/* find if this machine support other functions */
|
|
|
|
dmi_check_system(dell_quirks);
|
|
|
|
|
2009-03-31 03:46:44 +08:00
|
|
|
dmi_walk(find_tokens, NULL);
|
2009-01-08 10:08:56 +08:00
|
|
|
|
|
|
|
if (!da_tokens) {
|
2011-03-30 06:21:37 +08:00
|
|
|
pr_info("Unable to find dmi tokens\n");
|
2009-01-08 10:08:56 +08:00
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
|
2009-08-19 22:06:49 +08:00
|
|
|
ret = platform_driver_register(&platform_driver);
|
|
|
|
if (ret)
|
|
|
|
goto fail_platform_driver;
|
|
|
|
platform_device = platform_device_alloc("dell-laptop", -1);
|
|
|
|
if (!platform_device) {
|
|
|
|
ret = -ENOMEM;
|
|
|
|
goto fail_platform_device1;
|
|
|
|
}
|
|
|
|
ret = platform_device_add(platform_device);
|
|
|
|
if (ret)
|
|
|
|
goto fail_platform_device2;
|
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
/*
|
|
|
|
* Allocate buffer below 4GB for SMI data--only 32-bit physical addr
|
|
|
|
* is passed to SMI handler.
|
|
|
|
*/
|
|
|
|
bufferpage = alloc_page(GFP_KERNEL | GFP_DMA32);
|
2013-05-09 10:03:02 +08:00
|
|
|
if (!bufferpage) {
|
|
|
|
ret = -ENOMEM;
|
2010-02-11 03:12:13 +08:00
|
|
|
goto fail_buffer;
|
2013-05-09 10:03:02 +08:00
|
|
|
}
|
2010-02-11 03:12:13 +08:00
|
|
|
buffer = page_address(bufferpage);
|
|
|
|
|
2013-11-17 21:00:16 +08:00
|
|
|
ret = dell_setup_rfkill();
|
|
|
|
|
|
|
|
if (ret) {
|
|
|
|
pr_warn("Unable to setup rfkill\n");
|
|
|
|
goto fail_rfkill;
|
|
|
|
}
|
|
|
|
|
2011-10-04 16:25:44 +08:00
|
|
|
if (quirks && quirks->touchpad_led)
|
|
|
|
touchpad_led_init(&platform_device->dev);
|
|
|
|
|
2015-02-19 18:58:29 +08:00
|
|
|
kbd_led_init(&platform_device->dev);
|
|
|
|
|
2010-09-28 11:43:31 +08:00
|
|
|
dell_laptop_dir = debugfs_create_dir("dell_laptop", NULL);
|
2013-11-17 21:00:16 +08:00
|
|
|
if (dell_laptop_dir != NULL)
|
|
|
|
debugfs_create_file("rfkill", 0444, dell_laptop_dir, NULL,
|
|
|
|
&dell_debugfs_fops);
|
2010-09-28 11:43:31 +08:00
|
|
|
|
2009-01-08 10:08:56 +08:00
|
|
|
#ifdef CONFIG_ACPI
|
|
|
|
/* In the event of an ACPI backlight being available, don't
|
|
|
|
* register the platform controller.
|
|
|
|
*/
|
|
|
|
if (acpi_video_backlight_support())
|
|
|
|
return 0;
|
|
|
|
#endif
|
|
|
|
|
2010-02-11 03:12:13 +08:00
|
|
|
get_buffer();
|
|
|
|
buffer->input[0] = find_token_location(BRIGHTNESS_TOKEN);
|
|
|
|
if (buffer->input[0] != -1) {
|
|
|
|
dell_send_request(buffer, 0, 2);
|
|
|
|
max_intensity = buffer->output[3];
|
2009-01-08 10:08:56 +08:00
|
|
|
}
|
2010-02-11 03:12:13 +08:00
|
|
|
release_buffer();
|
2009-01-08 10:08:56 +08:00
|
|
|
|
|
|
|
if (max_intensity) {
|
2010-02-18 05:39:44 +08:00
|
|
|
struct backlight_properties props;
|
|
|
|
memset(&props, 0, sizeof(struct backlight_properties));
|
2011-03-23 07:30:21 +08:00
|
|
|
props.type = BACKLIGHT_PLATFORM;
|
2010-02-18 05:39:44 +08:00
|
|
|
props.max_brightness = max_intensity;
|
|
|
|
dell_backlight_device = backlight_device_register("dell_backlight",
|
|
|
|
&platform_device->dev,
|
|
|
|
NULL,
|
|
|
|
&dell_ops,
|
|
|
|
&props);
|
2009-01-08 10:08:56 +08:00
|
|
|
|
|
|
|
if (IS_ERR(dell_backlight_device)) {
|
|
|
|
ret = PTR_ERR(dell_backlight_device);
|
|
|
|
dell_backlight_device = NULL;
|
2009-08-19 22:06:47 +08:00
|
|
|
goto fail_backlight;
|
2009-01-08 10:08:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
dell_backlight_device->props.brightness =
|
|
|
|
dell_get_intensity(dell_backlight_device);
|
|
|
|
backlight_update_status(dell_backlight_device);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
2009-08-19 22:06:47 +08:00
|
|
|
|
|
|
|
fail_backlight:
|
2013-11-17 21:00:16 +08:00
|
|
|
i8042_remove_filter(dell_laptop_i8042_filter);
|
|
|
|
cancel_delayed_work_sync(&dell_rfkill_work);
|
|
|
|
dell_cleanup_rfkill();
|
|
|
|
fail_rfkill:
|
2010-02-11 03:12:13 +08:00
|
|
|
free_page((unsigned long)bufferpage);
|
|
|
|
fail_buffer:
|
2009-08-19 22:06:49 +08:00
|
|
|
platform_device_del(platform_device);
|
|
|
|
fail_platform_device2:
|
|
|
|
platform_device_put(platform_device);
|
|
|
|
fail_platform_device1:
|
|
|
|
platform_driver_unregister(&platform_driver);
|
|
|
|
fail_platform_driver:
|
2009-01-08 10:08:56 +08:00
|
|
|
kfree(da_tokens);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit dell_exit(void)
|
|
|
|
{
|
2010-09-28 11:43:31 +08:00
|
|
|
debugfs_remove_recursive(dell_laptop_dir);
|
2011-10-04 16:25:44 +08:00
|
|
|
if (quirks && quirks->touchpad_led)
|
|
|
|
touchpad_led_exit();
|
2015-02-19 18:58:29 +08:00
|
|
|
kbd_led_exit();
|
2013-11-17 21:00:16 +08:00
|
|
|
i8042_remove_filter(dell_laptop_i8042_filter);
|
|
|
|
cancel_delayed_work_sync(&dell_rfkill_work);
|
2009-01-08 10:08:56 +08:00
|
|
|
backlight_device_unregister(dell_backlight_device);
|
2013-11-17 21:00:16 +08:00
|
|
|
dell_cleanup_rfkill();
|
2010-02-10 03:03:04 +08:00
|
|
|
if (platform_device) {
|
2010-03-01 22:46:43 +08:00
|
|
|
platform_device_unregister(platform_device);
|
2010-02-10 03:03:04 +08:00
|
|
|
platform_driver_unregister(&platform_driver);
|
|
|
|
}
|
2010-02-10 03:05:01 +08:00
|
|
|
kfree(da_tokens);
|
2010-02-11 03:12:13 +08:00
|
|
|
free_page((unsigned long)buffer);
|
2009-01-08 10:08:56 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
module_init(dell_init);
|
|
|
|
module_exit(dell_exit);
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Matthew Garrett <mjg@redhat.com>");
|
2015-02-19 18:58:29 +08:00
|
|
|
MODULE_AUTHOR("Gabriele Mazzotta <gabriele.mzt@gmail.com>");
|
|
|
|
MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>");
|
2009-01-08 10:08:56 +08:00
|
|
|
MODULE_DESCRIPTION("Dell laptop driver");
|
|
|
|
MODULE_LICENSE("GPL");
|