2018-02-21 17:01:04 +00:00
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// SPDX-License-Identifier: GPL-2.0
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2009-09-15 00:11:21 +00:00
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/*
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2018-02-21 17:00:35 +00:00
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* Topstar Laptop ACPI Extras driver
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2009-09-15 00:11:21 +00:00
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*
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* Copyright (c) 2009 Herton Ronaldo Krzesinski <herton@mandriva.com.br>
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2018-02-21 17:00:54 +00:00
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* Copyright (c) 2018 Guillaume Douézan-Grard
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2009-09-15 00:11:21 +00:00
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*
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* Implementation inspired by existing x86 platform drivers, in special
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2018-02-21 17:00:54 +00:00
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* asus/eepc/fujitsu-laptop, thanks to their authors.
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2009-09-15 00:11:21 +00:00
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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include 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 08:04:11 +00:00
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#include <linux/slab.h>
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2009-09-15 00:11:21 +00:00
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#include <linux/acpi.h>
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2018-02-21 17:00:45 +00:00
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#include <linux/dmi.h>
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2009-09-15 00:11:21 +00:00
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#include <linux/input.h>
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2010-08-05 05:29:57 +00:00
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#include <linux/input/sparse-keymap.h>
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2018-02-21 17:00:45 +00:00
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#include <linux/leds.h>
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2018-02-21 17:00:35 +00:00
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#include <linux/platform_device.h>
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2009-09-15 00:11:21 +00:00
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2018-02-21 17:00:16 +00:00
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#define TOPSTAR_LAPTOP_CLASS "topstar"
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2009-09-15 00:11:21 +00:00
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2018-02-21 17:00:16 +00:00
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struct topstar_laptop {
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2018-02-21 17:00:26 +00:00
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struct acpi_device *device;
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2018-02-21 17:00:35 +00:00
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struct platform_device *platform;
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2018-02-21 17:00:16 +00:00
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struct input_dev *input;
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2018-02-21 17:00:45 +00:00
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struct led_classdev led;
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2009-09-15 00:11:21 +00:00
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};
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2018-02-21 17:00:45 +00:00
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/*
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* LED
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*/
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static enum led_brightness topstar_led_get(struct led_classdev *led)
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{
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return led->brightness;
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}
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static int topstar_led_set(struct led_classdev *led,
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enum led_brightness state)
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{
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struct topstar_laptop *topstar = container_of(led,
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struct topstar_laptop, led);
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struct acpi_object_list params;
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union acpi_object in_obj;
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unsigned long long int ret;
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acpi_status status;
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params.count = 1;
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params.pointer = &in_obj;
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in_obj.type = ACPI_TYPE_INTEGER;
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in_obj.integer.value = 0x83;
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/*
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* Topstar ACPI returns 0x30001 when the LED is ON and 0x30000 when it
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* is OFF.
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*/
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status = acpi_evaluate_integer(topstar->device->handle,
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"GETX", ¶ms, &ret);
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if (ACPI_FAILURE(status))
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return -1;
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/*
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* FNCX(0x83) toggles the LED (more precisely, it is supposed to
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* act as an hardware switch and disconnect the WLAN adapter but
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* it seems to be faulty on some models like the Topstar U931
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* Notebook).
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*/
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if ((ret == 0x30001 && state == LED_OFF)
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|| (ret == 0x30000 && state != LED_OFF)) {
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status = acpi_execute_simple_method(topstar->device->handle,
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"FNCX", 0x83);
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if (ACPI_FAILURE(status))
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return -1;
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}
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return 0;
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}
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static int topstar_led_init(struct topstar_laptop *topstar)
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{
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topstar->led = (struct led_classdev) {
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.default_trigger = "rfkill0",
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.brightness_get = topstar_led_get,
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.brightness_set_blocking = topstar_led_set,
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.name = TOPSTAR_LAPTOP_CLASS "::wlan",
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};
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return led_classdev_register(&topstar->platform->dev, &topstar->led);
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}
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static void topstar_led_exit(struct topstar_laptop *topstar)
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{
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led_classdev_unregister(&topstar->led);
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}
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2018-02-21 17:00:26 +00:00
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/*
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* Input
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*/
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2010-08-05 05:29:57 +00:00
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static const struct key_entry topstar_keymap[] = {
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{ KE_KEY, 0x80, { KEY_BRIGHTNESSUP } },
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{ KE_KEY, 0x81, { KEY_BRIGHTNESSDOWN } },
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{ KE_KEY, 0x83, { KEY_VOLUMEUP } },
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{ KE_KEY, 0x84, { KEY_VOLUMEDOWN } },
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{ KE_KEY, 0x85, { KEY_MUTE } },
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{ KE_KEY, 0x86, { KEY_SWITCHVIDEOMODE } },
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{ KE_KEY, 0x87, { KEY_F13 } }, /* touchpad enable/disable key */
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{ KE_KEY, 0x88, { KEY_WLAN } },
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{ KE_KEY, 0x8a, { KEY_WWW } },
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{ KE_KEY, 0x8b, { KEY_MAIL } },
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{ KE_KEY, 0x8c, { KEY_MEDIA } },
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2009-09-15 00:11:21 +00:00
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2010-08-05 05:29:57 +00:00
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/* Known non hotkey events don't handled or that we don't care yet */
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2011-09-26 13:04:54 +00:00
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{ KE_IGNORE, 0x82, }, /* backlight event */
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2010-08-05 05:29:57 +00:00
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{ KE_IGNORE, 0x8e, },
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{ KE_IGNORE, 0x8f, },
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{ KE_IGNORE, 0x90, },
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2009-09-15 00:11:21 +00:00
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2010-08-05 05:29:57 +00:00
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/*
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* 'G key' generate two event codes, convert to only
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* one event/key code for now, consider replacing by
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* a switch (3G switch - SW_3G?)
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*/
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{ KE_KEY, 0x96, { KEY_F14 } },
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{ KE_KEY, 0x97, { KEY_F14 } },
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2009-09-15 00:11:21 +00:00
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2010-08-05 05:29:57 +00:00
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{ KE_END, 0 }
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};
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2009-09-15 00:11:21 +00:00
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2018-02-21 17:00:26 +00:00
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static void topstar_input_notify(struct topstar_laptop *topstar, int event)
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2009-09-15 00:11:21 +00:00
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{
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2018-02-21 17:00:16 +00:00
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if (!sparse_keymap_report_event(topstar->input, event, 1, true))
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2010-08-05 05:29:57 +00:00
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pr_info("unknown event = 0x%02x\n", event);
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2009-09-15 00:11:21 +00:00
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}
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2018-02-21 17:00:16 +00:00
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static int topstar_input_init(struct topstar_laptop *topstar)
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2009-09-15 00:11:21 +00:00
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{
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2010-08-05 05:29:57 +00:00
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struct input_dev *input;
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2018-02-21 17:00:16 +00:00
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int err;
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2009-09-15 00:11:21 +00:00
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2010-08-05 05:29:57 +00:00
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input = input_allocate_device();
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2013-10-23 19:14:52 +00:00
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if (!input)
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2010-08-05 05:29:57 +00:00
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return -ENOMEM;
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input->name = "Topstar Laptop extra buttons";
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2018-02-21 17:00:16 +00:00
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input->phys = TOPSTAR_LAPTOP_CLASS "/input0";
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2010-08-05 05:29:57 +00:00
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input->id.bustype = BUS_HOST;
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2018-02-21 17:00:35 +00:00
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input->dev.parent = &topstar->platform->dev;
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2010-08-05 05:29:57 +00:00
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2018-02-21 17:00:16 +00:00
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err = sparse_keymap_setup(input, topstar_keymap, NULL);
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if (err) {
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2010-08-05 05:29:57 +00:00
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pr_err("Unable to setup input device keymap\n");
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goto err_free_dev;
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2009-09-15 00:11:21 +00:00
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}
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2010-08-05 05:29:57 +00:00
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2018-02-21 17:00:16 +00:00
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err = input_register_device(input);
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if (err) {
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2009-09-15 00:11:21 +00:00
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pr_err("Unable to register input device\n");
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2017-03-09 12:11:48 +00:00
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goto err_free_dev;
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2009-09-15 00:11:21 +00:00
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}
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2018-02-21 17:00:16 +00:00
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topstar->input = input;
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2009-09-15 00:11:21 +00:00
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return 0;
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2010-08-05 05:29:57 +00:00
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2018-02-21 17:00:16 +00:00
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err_free_dev:
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2010-08-05 05:29:57 +00:00
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input_free_device(input);
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2018-02-21 17:00:16 +00:00
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return err;
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2009-09-15 00:11:21 +00:00
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}
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2018-02-21 17:00:26 +00:00
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static void topstar_input_exit(struct topstar_laptop *topstar)
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{
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input_unregister_device(topstar->input);
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}
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2018-02-21 17:00:35 +00:00
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/*
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* Platform
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*/
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static struct platform_driver topstar_platform_driver = {
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.driver = {
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.name = TOPSTAR_LAPTOP_CLASS,
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},
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};
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static int topstar_platform_init(struct topstar_laptop *topstar)
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{
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int err;
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topstar->platform = platform_device_alloc(TOPSTAR_LAPTOP_CLASS, -1);
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if (!topstar->platform)
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return -ENOMEM;
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platform_set_drvdata(topstar->platform, topstar);
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err = platform_device_add(topstar->platform);
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if (err)
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goto err_device_put;
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return 0;
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err_device_put:
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platform_device_put(topstar->platform);
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return err;
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}
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static void topstar_platform_exit(struct topstar_laptop *topstar)
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{
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platform_device_unregister(topstar->platform);
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}
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2018-02-21 17:00:26 +00:00
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/*
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* ACPI
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*/
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static int topstar_acpi_fncx_switch(struct acpi_device *device, bool state)
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{
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acpi_status status;
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u64 arg = state ? 0x86 : 0x87;
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status = acpi_execute_simple_method(device->handle, "FNCX", arg);
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if (ACPI_FAILURE(status)) {
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pr_err("Unable to switch FNCX notifications\n");
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return -ENODEV;
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}
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return 0;
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}
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static void topstar_acpi_notify(struct acpi_device *device, u32 event)
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{
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struct topstar_laptop *topstar = acpi_driver_data(device);
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static bool dup_evnt[2];
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bool *dup;
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/* 0x83 and 0x84 key events comes duplicated... */
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if (event == 0x83 || event == 0x84) {
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dup = &dup_evnt[event - 0x83];
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if (*dup) {
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*dup = false;
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return;
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}
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*dup = true;
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}
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topstar_input_notify(topstar, event);
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}
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static int topstar_acpi_init(struct topstar_laptop *topstar)
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{
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return topstar_acpi_fncx_switch(topstar->device, true);
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}
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static void topstar_acpi_exit(struct topstar_laptop *topstar)
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{
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topstar_acpi_fncx_switch(topstar->device, false);
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}
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|
2018-02-21 17:00:45 +00:00
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/*
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* Enable software-based WLAN LED control on systems with defective
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* hardware switch.
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*/
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static bool led_workaround;
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static int dmi_led_workaround(const struct dmi_system_id *id)
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{
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led_workaround = true;
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return 0;
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}
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static const struct dmi_system_id topstar_dmi_ids[] = {
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{
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.callback = dmi_led_workaround,
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.ident = "Topstar U931/RVP7",
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.matches = {
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DMI_MATCH(DMI_BOARD_NAME, "U931"),
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|
|
DMI_MATCH(DMI_BOARD_VERSION, "RVP7"),
|
|
|
|
},
|
|
|
|
},
|
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
2018-02-21 17:00:16 +00:00
|
|
|
static int topstar_acpi_add(struct acpi_device *device)
|
2009-09-15 00:11:21 +00:00
|
|
|
{
|
2018-02-21 17:00:16 +00:00
|
|
|
struct topstar_laptop *topstar;
|
2018-02-21 17:00:26 +00:00
|
|
|
int err;
|
2009-09-15 00:11:21 +00:00
|
|
|
|
2018-02-21 17:00:45 +00:00
|
|
|
dmi_check_system(topstar_dmi_ids);
|
|
|
|
|
2018-02-21 17:00:16 +00:00
|
|
|
topstar = kzalloc(sizeof(struct topstar_laptop), GFP_KERNEL);
|
|
|
|
if (!topstar)
|
2009-09-15 00:11:21 +00:00
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
strcpy(acpi_device_name(device), "Topstar TPSACPI");
|
2018-02-21 17:00:16 +00:00
|
|
|
strcpy(acpi_device_class(device), TOPSTAR_LAPTOP_CLASS);
|
2018-02-21 17:00:26 +00:00
|
|
|
device->driver_data = topstar;
|
|
|
|
topstar->device = device;
|
2009-09-15 00:11:21 +00:00
|
|
|
|
2018-02-21 17:00:26 +00:00
|
|
|
err = topstar_acpi_init(topstar);
|
|
|
|
if (err)
|
2018-02-21 17:00:16 +00:00
|
|
|
goto err_free;
|
2009-09-15 00:11:21 +00:00
|
|
|
|
2018-02-21 17:00:35 +00:00
|
|
|
err = topstar_platform_init(topstar);
|
2018-02-21 17:00:26 +00:00
|
|
|
if (err)
|
|
|
|
goto err_acpi_exit;
|
2009-09-15 00:11:21 +00:00
|
|
|
|
2018-02-21 17:00:35 +00:00
|
|
|
err = topstar_input_init(topstar);
|
|
|
|
if (err)
|
|
|
|
goto err_platform_exit;
|
|
|
|
|
2018-02-21 17:00:45 +00:00
|
|
|
if (led_workaround) {
|
|
|
|
err = topstar_led_init(topstar);
|
|
|
|
if (err)
|
|
|
|
goto err_input_exit;
|
|
|
|
}
|
|
|
|
|
2009-09-15 00:11:21 +00:00
|
|
|
return 0;
|
|
|
|
|
2018-02-21 17:00:45 +00:00
|
|
|
err_input_exit:
|
|
|
|
topstar_input_exit(topstar);
|
2018-02-21 17:00:35 +00:00
|
|
|
err_platform_exit:
|
|
|
|
topstar_platform_exit(topstar);
|
2018-02-21 17:00:26 +00:00
|
|
|
err_acpi_exit:
|
|
|
|
topstar_acpi_exit(topstar);
|
2018-02-21 17:00:16 +00:00
|
|
|
err_free:
|
|
|
|
kfree(topstar);
|
2018-02-21 17:00:26 +00:00
|
|
|
return err;
|
2009-09-15 00:11:21 +00:00
|
|
|
}
|
|
|
|
|
2018-02-21 17:00:16 +00:00
|
|
|
static int topstar_acpi_remove(struct acpi_device *device)
|
2009-09-15 00:11:21 +00:00
|
|
|
{
|
2018-02-21 17:00:16 +00:00
|
|
|
struct topstar_laptop *topstar = acpi_driver_data(device);
|
2009-09-15 00:11:21 +00:00
|
|
|
|
2018-02-21 17:00:45 +00:00
|
|
|
if (led_workaround)
|
|
|
|
topstar_led_exit(topstar);
|
|
|
|
|
2018-02-21 17:00:26 +00:00
|
|
|
topstar_input_exit(topstar);
|
2018-02-21 17:00:35 +00:00
|
|
|
topstar_platform_exit(topstar);
|
2018-02-21 17:00:26 +00:00
|
|
|
topstar_acpi_exit(topstar);
|
2009-09-15 00:11:21 +00:00
|
|
|
|
2018-02-21 17:00:16 +00:00
|
|
|
kfree(topstar);
|
2009-09-15 00:11:21 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct acpi_device_id topstar_device_ids[] = {
|
2017-05-15 16:22:08 +00:00
|
|
|
{ "TPS0001", 0 },
|
2009-09-15 00:11:21 +00:00
|
|
|
{ "TPSACPI01", 0 },
|
|
|
|
{ "", 0 },
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(acpi, topstar_device_ids);
|
|
|
|
|
2018-02-21 17:00:16 +00:00
|
|
|
static struct acpi_driver topstar_acpi_driver = {
|
2009-09-15 00:11:21 +00:00
|
|
|
.name = "Topstar laptop ACPI driver",
|
2018-02-21 17:00:16 +00:00
|
|
|
.class = TOPSTAR_LAPTOP_CLASS,
|
2009-09-15 00:11:21 +00:00
|
|
|
.ids = topstar_device_ids,
|
|
|
|
.ops = {
|
2018-02-21 17:00:16 +00:00
|
|
|
.add = topstar_acpi_add,
|
|
|
|
.remove = topstar_acpi_remove,
|
|
|
|
.notify = topstar_acpi_notify,
|
2009-09-15 00:11:21 +00:00
|
|
|
},
|
|
|
|
};
|
2018-02-21 17:00:06 +00:00
|
|
|
|
|
|
|
static int __init topstar_laptop_init(void)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
|
2018-02-21 17:00:35 +00:00
|
|
|
ret = platform_driver_register(&topstar_platform_driver);
|
2018-02-21 17:00:06 +00:00
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2018-02-21 17:00:35 +00:00
|
|
|
ret = acpi_bus_register_driver(&topstar_acpi_driver);
|
|
|
|
if (ret < 0)
|
|
|
|
goto err_driver_unreg;
|
|
|
|
|
2018-02-21 17:00:06 +00:00
|
|
|
pr_info("ACPI extras driver loaded\n");
|
|
|
|
return 0;
|
2018-02-21 17:00:35 +00:00
|
|
|
|
|
|
|
err_driver_unreg:
|
|
|
|
platform_driver_unregister(&topstar_platform_driver);
|
|
|
|
return ret;
|
2018-02-21 17:00:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit topstar_laptop_exit(void)
|
|
|
|
{
|
2018-02-21 17:00:16 +00:00
|
|
|
acpi_bus_unregister_driver(&topstar_acpi_driver);
|
2018-02-21 17:00:35 +00:00
|
|
|
platform_driver_unregister(&topstar_platform_driver);
|
2018-02-21 17:00:06 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
module_init(topstar_laptop_init);
|
|
|
|
module_exit(topstar_laptop_exit);
|
2009-09-15 00:11:21 +00:00
|
|
|
|
|
|
|
MODULE_AUTHOR("Herton Ronaldo Krzesinski");
|
2018-02-21 17:00:54 +00:00
|
|
|
MODULE_AUTHOR("Guillaume Douézan-Grard");
|
2009-09-15 00:11:21 +00:00
|
|
|
MODULE_DESCRIPTION("Topstar Laptop ACPI Extras driver");
|
|
|
|
MODULE_LICENSE("GPL");
|