0b8dba15e9
There is a macro to register and unregister modules in simple cases, Let's use it and clean up the driver. Cc: Alex Hung <alex.hung@canonical.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Darren Hart (VMware) <dvhart@infradead.org>
114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
/*
|
|
* Airplane mode button for HP & Xiaomi laptops
|
|
*
|
|
* Copyright (C) 2014-2017 Alex Hung <alex.hung@canonical.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/input.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/acpi.h>
|
|
#include <acpi/acpi_bus.h>
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Alex Hung");
|
|
MODULE_ALIAS("acpi*:HPQ6001:*");
|
|
MODULE_ALIAS("acpi*:WSTADEF:*");
|
|
|
|
static struct input_dev *hpwl_input_dev;
|
|
|
|
static const struct acpi_device_id hpwl_ids[] = {
|
|
{"HPQ6001", 0},
|
|
{"WSTADEF", 0},
|
|
{"", 0},
|
|
};
|
|
|
|
static int hp_wireless_input_setup(void)
|
|
{
|
|
int err;
|
|
|
|
hpwl_input_dev = input_allocate_device();
|
|
if (!hpwl_input_dev)
|
|
return -ENOMEM;
|
|
|
|
hpwl_input_dev->name = "HP Wireless hotkeys";
|
|
hpwl_input_dev->phys = "hpq6001/input0";
|
|
hpwl_input_dev->id.bustype = BUS_HOST;
|
|
hpwl_input_dev->evbit[0] = BIT(EV_KEY);
|
|
set_bit(KEY_RFKILL, hpwl_input_dev->keybit);
|
|
|
|
err = input_register_device(hpwl_input_dev);
|
|
if (err)
|
|
goto err_free_dev;
|
|
|
|
return 0;
|
|
|
|
err_free_dev:
|
|
input_free_device(hpwl_input_dev);
|
|
return err;
|
|
}
|
|
|
|
static void hp_wireless_input_destroy(void)
|
|
{
|
|
input_unregister_device(hpwl_input_dev);
|
|
}
|
|
|
|
static void hpwl_notify(struct acpi_device *acpi_dev, u32 event)
|
|
{
|
|
if (event != 0x80) {
|
|
pr_info("Received unknown event (0x%x)\n", event);
|
|
return;
|
|
}
|
|
|
|
input_report_key(hpwl_input_dev, KEY_RFKILL, 1);
|
|
input_sync(hpwl_input_dev);
|
|
input_report_key(hpwl_input_dev, KEY_RFKILL, 0);
|
|
input_sync(hpwl_input_dev);
|
|
}
|
|
|
|
static int hpwl_add(struct acpi_device *device)
|
|
{
|
|
int err;
|
|
|
|
err = hp_wireless_input_setup();
|
|
if (err)
|
|
pr_err("Failed to setup hp wireless hotkeys\n");
|
|
|
|
return err;
|
|
}
|
|
|
|
static int hpwl_remove(struct acpi_device *device)
|
|
{
|
|
hp_wireless_input_destroy();
|
|
return 0;
|
|
}
|
|
|
|
static struct acpi_driver hpwl_driver = {
|
|
.name = "hp-wireless",
|
|
.owner = THIS_MODULE,
|
|
.ids = hpwl_ids,
|
|
.ops = {
|
|
.add = hpwl_add,
|
|
.remove = hpwl_remove,
|
|
.notify = hpwl_notify,
|
|
},
|
|
};
|
|
|
|
module_acpi_driver(hpwl_driver);
|