*/
struct asus_hotk {
char *name; /* laptop name */
+
+ struct platform_device *platform_device;
struct acpi_device *device; /* the device we are in */
acpi_handle handle; /* the handle of the hotk device */
char status; /* status of the hotk, for LEDs, ... */
/* The actual device the driver binds to */
static struct asus_hotk *hotk;
-/*
- * The hotkey driver declaration
- */
-static const struct acpi_device_id asus_device_ids[] = {
- {"ATK0100", 0},
- {"ATK0101", 0},
- {"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, asus_device_ids);
-
-static int asus_hotk_add(struct acpi_device *device);
-static int asus_hotk_remove(struct acpi_device *device, int type);
-static void asus_hotk_notify(struct acpi_device *device, u32 event);
-
-static struct acpi_driver asus_hotk_driver = {
- .name = ASUS_HOTK_NAME,
- .class = ASUS_HOTK_CLASS,
- .owner = THIS_MODULE,
- .ids = asus_device_ids,
- .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
- .ops = {
- .add = asus_hotk_add,
- .remove = asus_hotk_remove,
- .notify = asus_hotk_notify,
- },
-};
-
/* The backlight device /sys/class/backlight */
static struct backlight_device *asus_backlight_device;
return -EINVAL;
}
-static void asus_hotk_notify(struct acpi_device *device, u32 event)
+static void asus_acpi_notify(struct acpi_device *device, u32 event)
{
static struct key_entry *key;
u16 count;
NULL
};
-static struct attribute_group asuspf_attribute_group = {
+static struct attribute_group platform_attribute_group = {
.attrs = asuspf_attributes
};
-static struct platform_driver asuspf_driver = {
+static int asus_platform_init(void)
+{
+ int result;
+
+ hotk->platform_device = platform_device_alloc(ASUS_HOTK_FILE, -1);
+ if (!hotk->platform_device)
+ return -ENOMEM;
+
+ result = platform_device_add(hotk->platform_device);
+ if (result)
+ goto fail_platform_device;
+
+ result = sysfs_create_group(&hotk->platform_device->dev.kobj,
+ &platform_attribute_group);
+ if (result)
+ goto fail_sysfs;
+ return 0;
+
+fail_sysfs:
+ platform_device_del(hotk->platform_device);
+fail_platform_device:
+ platform_device_put(hotk->platform_device);
+ return result;
+}
+
+static void asus_platform_exit(void)
+{
+ sysfs_remove_group(&hotk->platform_device->dev.kobj,
+ &platform_attribute_group);
+ platform_device_unregister(hotk->platform_device);
+}
+
+static struct platform_driver platform_driver = {
.driver = {
.name = ASUS_HOTK_FILE,
.owner = THIS_MODULE,
}
};
-static struct platform_device *asuspf_device;
-
static void asus_hotk_add_fs(void)
{
ASUS_SET_DEVICE_ATTR(infos, 0444, show_infos, NULL);
return AE_OK;
}
-static int asus_input_init(void)
+static int asus_input_init(struct device *dev)
{
const struct key_entry *key;
int result;
return 0;
}
hotk->inputdev->name = "Asus Laptop extra buttons";
+ hotk->inputdev->dev.parent = dev;
hotk->inputdev->phys = ASUS_HOTK_FILE "/input0";
hotk->inputdev->id.bustype = BUS_HOST;
hotk->inputdev->getkeycode = asus_getkeycode;
return result;
}
-static int asus_hotk_check(void)
-{
- int result = 0;
-
- result = acpi_bus_get_status(hotk->device);
- if (result)
- return result;
-
- if (hotk->device->status.present) {
- result = asus_hotk_get_info();
- } else {
- pr_err("Hotkey device not present, aborting\n");
- return -EINVAL;
- }
-
- return result;
-}
-
-static int asus_hotk_found;
-
-static int asus_hotk_add(struct acpi_device *device)
-{
- int result;
-
- pr_notice("Asus Laptop Support version %s\n",
- ASUS_LAPTOP_VERSION);
-
- hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL);
- if (!hotk)
- return -ENOMEM;
-
- hotk->handle = device->handle;
- strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME);
- strcpy(acpi_device_class(device), ASUS_HOTK_CLASS);
- device->driver_data = hotk;
- hotk->device = device;
-
- result = asus_hotk_check();
- if (result)
- goto end;
-
- asus_hotk_add_fs();
-
- asus_hotk_found = 1;
-
- /* WLED and BLED are on by default */
- if (bluetooth_status != -1)
- write_status(bt_switch_handle, !!bluetooth_status, BT_ON);
- if (wireless_status != -1)
- write_status(wl_switch_handle, !!wireless_status, WL_ON);
-
- /* If the h/w switch is off, we need to check the real status */
- write_status(NULL, read_status(BT_ON), BT_ON);
- write_status(NULL, read_status(WL_ON), WL_ON);
-
- /* LCD Backlight is on by default */
- write_status(NULL, 1, LCD_ON);
-
- /* Keyboard Backlight is on by default */
- if (kled_set_handle)
- set_kled_lvl(1);
-
- /* LED display is off by default */
- hotk->ledd_status = 0xFFF;
-
- /* Set initial values of light sensor and level */
- hotk->light_switch = 0; /* Default to light sensor disabled */
- hotk->light_level = 5; /* level 5 for sensor sensitivity */
-
- if (ls_switch_handle)
- set_light_sens_switch(hotk->light_switch);
-
- if (ls_level_handle)
- set_light_sens_level(hotk->light_level);
-
- /* GPS is on by default */
- write_status(NULL, 1, GPS_ON);
-
-end:
- if (result) {
- kfree(hotk->name);
- kfree(hotk);
- }
-
- return result;
-}
-
-static int asus_hotk_remove(struct acpi_device *device, int type)
-{
- kfree(hotk->name);
- kfree(hotk);
-
- return 0;
-}
-
static void asus_backlight_exit(void)
{
if (asus_backlight_device)
input_unregister_device(hotk->inputdev);
}
-static void __exit asus_laptop_exit(void)
-{
- asus_backlight_exit();
- asus_led_exit();
- asus_input_exit();
-
- acpi_bus_unregister_driver(&asus_hotk_driver);
- sysfs_remove_group(&asuspf_device->dev.kobj, &asuspf_attribute_group);
- platform_device_unregister(asuspf_device);
- platform_driver_unregister(&asuspf_driver);
-}
-
static int asus_backlight_init(struct device *dev)
{
struct backlight_device *bd;
return rv;
}
-static int __init asus_laptop_init(void)
+
+static bool asus_device_present;
+
+static int __devinit asus_acpi_init(struct acpi_device *device)
{
- int result;
+ int result = 0;
- result = acpi_bus_register_driver(&asus_hotk_driver);
- if (result < 0)
+ result = acpi_bus_get_status(hotk->device);
+ if (result)
return result;
-
- /*
- * This is a bit of a kludge. We only want this module loaded
- * for ASUS systems, but there's currently no way to probe the
- * ACPI namespace for ASUS HIDs. So we just return failure if
- * we didn't find one, which will cause the module to be
- * unloaded.
- */
- if (!asus_hotk_found) {
- acpi_bus_unregister_driver(&asus_hotk_driver);
+ if (!hotk->device->status.present) {
+ pr_err("Hotkey device not present, aborting\n");
return -ENODEV;
}
- result = asus_input_init();
+ result = asus_hotk_get_info();
if (result)
- goto fail_input;
+ return result;
- /* Register platform stuff */
- result = platform_driver_register(&asuspf_driver);
- if (result)
- goto fail_platform_driver;
+ asus_hotk_add_fs();
- asuspf_device = platform_device_alloc(ASUS_HOTK_FILE, -1);
- if (!asuspf_device) {
- result = -ENOMEM;
- goto fail_platform_device1;
- }
+ /* WLED and BLED are on by default */
+ write_status(bt_switch_handle, 1, BT_ON);
+ write_status(wl_switch_handle, 1, WL_ON);
- result = platform_device_add(asuspf_device);
- if (result)
- goto fail_platform_device2;
+ /* If the h/w switch is off, we need to check the real status */
+ write_status(NULL, read_status(BT_ON), BT_ON);
+ write_status(NULL, read_status(WL_ON), WL_ON);
+
+ /* LCD Backlight is on by default */
+ write_status(NULL, 1, LCD_ON);
- result = sysfs_create_group(&asuspf_device->dev.kobj,
- &asuspf_attribute_group);
+ /* Keyboard Backlight is on by default */
+ if (kled_set_handle)
+ set_kled_lvl(1);
+
+ /* LED display is off by default */
+ hotk->ledd_status = 0xFFF;
+
+ /* Set initial values of light sensor and level */
+ hotk->light_switch = 0; /* Default to light sensor disabled */
+ hotk->light_level = 5; /* level 5 for sensor sensitivity */
+
+ if (ls_switch_handle)
+ set_light_sens_switch(hotk->light_switch);
+
+ if (ls_level_handle)
+ set_light_sens_level(hotk->light_level);
+
+ /* GPS is on by default */
+ write_status(NULL, 1, GPS_ON);
+ return result;
+}
+
+static int __devinit asus_acpi_add(struct acpi_device *device)
+{
+ int result;
+
+ pr_notice("Asus Laptop Support version %s\n",
+ ASUS_LAPTOP_VERSION);
+ hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL);
+ if (!hotk)
+ return -ENOMEM;
+ hotk->handle = device->handle;
+ strcpy(acpi_device_name(device), ASUS_HOTK_DEVICE_NAME);
+ strcpy(acpi_device_class(device), ASUS_HOTK_CLASS);
+ device->driver_data = hotk;
+ hotk->device = device;
+
+ result = asus_acpi_init(device);
if (result)
- goto fail_sysfs;
+ goto fail_platform;
- result = asus_led_init(&asuspf_device->dev);
+ /*
+ * Register the platform device first. It is used as a parent for the
+ * sub-devices below.
+ */
+ result = asus_platform_init();
if (result)
- goto fail_led;
+ goto fail_platform;
if (!acpi_video_backlight_support()) {
- result = asus_backlight_init(&asuspf_device->dev);
+ result = asus_backlight_init(&hotk->platform_device->dev);
if (result)
goto fail_backlight;
} else
- pr_info("Brightness ignored, must be controlled by "
- "ACPI video driver\n");
+ pr_info("Backlight controlled by ACPI video driver\n");
+ result = asus_input_init(&hotk->platform_device->dev);
+ if (result)
+ goto fail_input;
+
+ result = asus_led_init(&hotk->platform_device->dev);
+ if (result)
+ goto fail_led;
+
+ asus_device_present = true;
return 0;
+fail_led:
+ asus_input_exit();
+fail_input:
+ asus_backlight_exit();
fail_backlight:
- asus_led_exit();
+ asus_platform_exit();
+fail_platform:
+ kfree(hotk->name);
+ kfree(hotk);
-fail_led:
- sysfs_remove_group(&asuspf_device->dev.kobj,
- &asuspf_attribute_group);
+ return result;
+}
-fail_sysfs:
- platform_device_del(asuspf_device);
+static int asus_acpi_remove(struct acpi_device *device, int type)
+{
+ asus_backlight_exit();
+ asus_led_exit();
+ asus_input_exit();
+ asus_platform_exit();
+
+ kfree(hotk->name);
+ kfree(hotk);
+ return 0;
+}
+
+static const struct acpi_device_id asus_device_ids[] = {
+ {"ATK0100", 0},
+ {"ATK0101", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, asus_device_ids);
-fail_platform_device2:
- platform_device_put(asuspf_device);
+static struct acpi_driver asus_acpi_driver = {
+ .name = ASUS_HOTK_NAME,
+ .class = ASUS_HOTK_CLASS,
+ .owner = THIS_MODULE,
+ .ids = asus_device_ids,
+ .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
+ .ops = {
+ .add = asus_acpi_add,
+ .remove = asus_acpi_remove,
+ .notify = asus_acpi_notify,
+ },
+};
-fail_platform_device1:
- platform_driver_unregister(&asuspf_driver);
+static int __init asus_laptop_init(void)
+{
+ int result;
-fail_platform_driver:
- asus_input_exit();
+ result = platform_driver_register(&platform_driver);
+ if (result < 0)
+ return result;
-fail_input:
+ result = acpi_bus_register_driver(&asus_acpi_driver);
+ if (result < 0)
+ goto fail_acpi_driver;
+ if (!asus_device_present) {
+ result = -ENODEV;
+ goto fail_no_device;
+ }
+ return 0;
+fail_no_device:
+ acpi_bus_unregister_driver(&asus_acpi_driver);
+fail_acpi_driver:
+ platform_driver_unregister(&platform_driver);
return result;
}
+static void __exit asus_laptop_exit(void)
+{
+ acpi_bus_unregister_driver(&asus_acpi_driver);
+ platform_driver_unregister(&platform_driver);
+}
+
module_init(asus_laptop_init);
module_exit(asus_laptop_exit);
projects / mirror_ubuntu-focal-kernel.git / commitdiff