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// SPDX-License-Identifier: GPL-2.0-only
/*
* Acer Wireless Radio Control Driver
*
* Copyright (C) 2017 Endless Mobile, Inc.
*/
#include <linux/acpi.h>
#include <linux/input.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci_ids.h>
#include <linux/platform_device.h>
#include <linux/types.h>
static const struct acpi_device_id acer_wireless_acpi_ids[] = {
{"10251229", 0},
{"", 0},
};
MODULE_DEVICE_TABLE(acpi, acer_wireless_acpi_ids);
static void acer_wireless_notify(acpi_handle handle, u32 event, void *data)
{
struct device *dev = data;
struct input_dev *idev = dev_get_drvdata(dev);
dev_dbg(dev, "event=%#x\n", event);
if (event != 0x80) {
dev_notice(dev, "Unknown SMKB event: %#x\n", event);
return;
}
input_report_key(idev, KEY_RFKILL, 1);
input_sync(idev);
input_report_key(idev, KEY_RFKILL, 0);
input_sync(idev);
}
static int acer_wireless_probe(struct platform_device *pdev)
{
struct acpi_device *adev;
struct input_dev *idev;
int ret;
adev = ACPI_COMPANION(&pdev->dev);
if (!adev)
return -ENODEV;
idev = devm_input_allocate_device(&pdev->dev);
if (!idev)
return -ENOMEM;
platform_set_drvdata(pdev, idev);
idev->name = "Acer Wireless Radio Control";
idev->phys = "acer-wireless/input0";
idev->id.bustype = BUS_HOST;
idev->id.vendor = PCI_VENDOR_ID_AI;
idev->id.product = 0x1229;
set_bit(EV_KEY, idev->evbit);
set_bit(KEY_RFKILL, idev->keybit);
ret = input_register_device(idev);
if (ret)
return ret;
return acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY,
acer_wireless_notify,
&pdev->dev);
}
static void acer_wireless_remove(struct platform_device *pdev)
{
acpi_dev_remove_notify_handler(ACPI_COMPANION(&pdev->dev),
ACPI_DEVICE_NOTIFY,
acer_wireless_notify);
}
static struct platform_driver acer_wireless_driver = {
.probe = acer_wireless_probe,
.remove = acer_wireless_remove,
.driver = {
.name = "Acer Wireless Radio Control Driver",
.acpi_match_table = acer_wireless_acpi_ids,
},
};
module_platform_driver(acer_wireless_driver);
MODULE_DESCRIPTION("Acer Wireless Radio Control Driver");
MODULE_AUTHOR("Chris Chiu <chiu@gmail.com>");
MODULE_LICENSE("GPL v2");
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