v4.19.13 snapshot.
diff --git a/drivers/platform/x86/toshiba-wmi.c b/drivers/platform/x86/toshiba-wmi.c
new file mode 100644
index 0000000..03d7620
--- /dev/null
+++ b/drivers/platform/x86/toshiba-wmi.c
@@ -0,0 +1,147 @@
+/*
+ * toshiba_wmi.c - Toshiba WMI Hotkey Driver
+ *
+ * Copyright (C) 2015 Azael Avalos <coproscefalo@gmail.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.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/acpi.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/dmi.h>
+
+MODULE_AUTHOR("Azael Avalos");
+MODULE_DESCRIPTION("Toshiba WMI Hotkey Driver");
+MODULE_LICENSE("GPL");
+
+#define WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
+
+MODULE_ALIAS("wmi:"WMI_EVENT_GUID);
+
+static struct input_dev *toshiba_wmi_input_dev;
+
+static const struct key_entry toshiba_wmi_keymap[] __initconst = {
+ /* TODO: Add keymap values once found... */
+ /*{ KE_KEY, 0x00, { KEY_ } },*/
+ { KE_END, 0 }
+};
+
+static void toshiba_wmi_notify(u32 value, void *context)
+{
+ struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL };
+ union acpi_object *obj;
+ acpi_status status;
+
+ status = wmi_get_event_data(value, &response);
+ if (ACPI_FAILURE(status)) {
+ pr_err("Bad event status 0x%x\n", status);
+ return;
+ }
+
+ obj = (union acpi_object *)response.pointer;
+ if (!obj)
+ return;
+
+ /* TODO: Add proper checks once we have data */
+ pr_debug("Unknown event received, obj type %x\n", obj->type);
+
+ kfree(response.pointer);
+}
+
+static const struct dmi_system_id toshiba_wmi_dmi_table[] __initconst = {
+ {
+ .ident = "Toshiba laptop",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ },
+ },
+ {}
+};
+
+static int __init toshiba_wmi_input_setup(void)
+{
+ acpi_status status;
+ int err;
+
+ toshiba_wmi_input_dev = input_allocate_device();
+ if (!toshiba_wmi_input_dev)
+ return -ENOMEM;
+
+ toshiba_wmi_input_dev->name = "Toshiba WMI hotkeys";
+ toshiba_wmi_input_dev->phys = "wmi/input0";
+ toshiba_wmi_input_dev->id.bustype = BUS_HOST;
+
+ err = sparse_keymap_setup(toshiba_wmi_input_dev,
+ toshiba_wmi_keymap, NULL);
+ if (err)
+ goto err_free_dev;
+
+ status = wmi_install_notify_handler(WMI_EVENT_GUID,
+ toshiba_wmi_notify, NULL);
+ if (ACPI_FAILURE(status)) {
+ err = -EIO;
+ goto err_free_dev;
+ }
+
+ err = input_register_device(toshiba_wmi_input_dev);
+ if (err)
+ goto err_remove_notifier;
+
+ return 0;
+
+ err_remove_notifier:
+ wmi_remove_notify_handler(WMI_EVENT_GUID);
+ err_free_dev:
+ input_free_device(toshiba_wmi_input_dev);
+ return err;
+}
+
+static void toshiba_wmi_input_destroy(void)
+{
+ wmi_remove_notify_handler(WMI_EVENT_GUID);
+ input_unregister_device(toshiba_wmi_input_dev);
+}
+
+static int __init toshiba_wmi_init(void)
+{
+ int ret;
+
+ if (!wmi_has_guid(WMI_EVENT_GUID) ||
+ !dmi_check_system(toshiba_wmi_dmi_table))
+ return -ENODEV;
+
+ ret = toshiba_wmi_input_setup();
+ if (ret) {
+ pr_err("Failed to setup input device\n");
+ return ret;
+ }
+
+ pr_info("Toshiba WMI Hotkey Driver\n");
+
+ return 0;
+}
+
+static void __exit toshiba_wmi_exit(void)
+{
+ if (wmi_has_guid(WMI_EVENT_GUID))
+ toshiba_wmi_input_destroy();
+}
+
+module_init(toshiba_wmi_init);
+module_exit(toshiba_wmi_exit);