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path: root/drivers/platform/x86/acer-wireless.c
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Diffstat (limited to 'drivers/platform/x86/acer-wireless.c')
-rw-r--r--drivers/platform/x86/acer-wireless.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/platform/x86/acer-wireless.c b/drivers/platform/x86/acer-wireless.c
new file mode 100644
index 000000000000..858037987b33
--- /dev/null
+++ b/drivers/platform/x86/acer-wireless.c
@@ -0,0 +1,71 @@
+/*
+ * Acer Wireless Radio Control Driver
+ *
+ * Copyright (C) 2017 Endless Mobile, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci_ids.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(struct acpi_device *adev, u32 event)
+{
+ struct input_dev *idev = acpi_driver_data(adev);
+
+ dev_dbg(&adev->dev, "event=%#x\n", event);
+ if (event != 0x80) {
+ dev_notice(&adev->dev, "Unknown SMKB event: %#x\n", event);
+ return;
+ }
+ input_report_key(idev, KEY_RFKILL, 1);
+ input_report_key(idev, KEY_RFKILL, 0);
+ input_sync(idev);
+}
+
+static int acer_wireless_add(struct acpi_device *adev)
+{
+ struct input_dev *idev;
+
+ idev = devm_input_allocate_device(&adev->dev);
+ if (!idev)
+ return -ENOMEM;
+
+ adev->driver_data = 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);
+
+ return input_register_device(idev);
+}
+
+static struct acpi_driver acer_wireless_driver = {
+ .name = "Acer Wireless Radio Control Driver",
+ .class = "hotkey",
+ .ids = acer_wireless_acpi_ids,
+ .ops = {
+ .add = acer_wireless_add,
+ .notify = acer_wireless_notify,
+ },
+};
+module_acpi_driver(acer_wireless_driver);
+
+MODULE_DESCRIPTION("Acer Wireless Radio Control Driver");
+MODULE_AUTHOR("Chris Chiu <chiu@gmail.com>");
+MODULE_LICENSE("GPL v2");