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Subject[PATCH 26/28] asus-laptop: clean led code
Date
Remove all "templates" and add a generic struct asus_led instead.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
---
drivers/platform/x86/asus-laptop.c | 235 ++++++++++++++++++------------------
1 files changed, 115 insertions(+), 120 deletions(-)
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index e1df92a..ae53026 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -193,29 +193,12 @@ ASUS_HANDLE(display_get,
/*
* Define a specific led structure to keep the main structure clean
*/
-#define ASUS_DEFINE_LED(object) \
- int object##_wk; \
- struct work_struct object##_work; \
- struct led_classdev object;
-
-
-#define led_to_asus(led_cdev, led) \
- container_of(container_of(led_cdev, struct asus_laptop_leds, \
- led), \
- struct asus_laptop, leds)
-#define work_to_asus(work, led) \
- container_of(container_of(work, struct asus_laptop_leds, \
- led##_work), \
- struct asus_laptop, leds)
-
-struct asus_laptop_leds {
- ASUS_DEFINE_LED(mled)
- ASUS_DEFINE_LED(tled)
- ASUS_DEFINE_LED(rled)
- ASUS_DEFINE_LED(pled)
- ASUS_DEFINE_LED(gled)
- ASUS_DEFINE_LED(kled)
- struct workqueue_struct *workqueue;
+struct asus_led {
+ int wk;
+ struct work_struct work;
+ struct led_classdev led;
+ struct asus_laptop *asus;
+ const char *method;
};

/*
@@ -233,7 +216,13 @@ struct asus_laptop {
struct input_dev *inputdev;
struct key_entry *keymap;

- struct asus_laptop_leds leds;
+ struct asus_led mled;
+ struct asus_led tled;
+ struct asus_led rled;
+ struct asus_led pled;
+ struct asus_led gled;
+ struct asus_led kled;
+ struct workqueue_struct *led_workqueue;

int wireless_status;
bool have_rsts;
@@ -353,7 +342,7 @@ static int acpi_check_handle(acpi_handle handle, const char *method,
}

/* Generic LED function */
-static int asus_led_set(struct asus_laptop *asus, char *method,
+static int asus_led_set(struct asus_laptop *asus, const char *method,
int value)
{
if (!strcmp(method, METHOD_MLED))
@@ -369,50 +358,29 @@ static int asus_led_set(struct asus_laptop *asus, char *method,
/*
* LEDs
*/
-#define ASUS_LED(object, ledname, max) \
- static void object##_led_set(struct led_classdev *led_cdev, \
- enum led_brightness value); \
- static enum led_brightness object##_led_get( \
- struct led_classdev *led_cdev); \
- static void object##_led_update(struct work_struct *ignored);
-
-ASUS_LED(mled, "mail", 1);
-ASUS_LED(tled, "touchpad", 1);
-ASUS_LED(rled, "record", 1);
-ASUS_LED(pled, "phone", 1);
-ASUS_LED(gled, "gaming", 1);
-ASUS_LED(kled, "kbd_backlight", 3);
-
/* /sys/class/led handlers */
-#define ASUS_LED_HANDLER(object, method) \
- static void object##_led_set(struct led_classdev *led_cdev, \
- enum led_brightness value) \
- { \
- struct asus_laptop *asus = \
- led_to_asus(led_cdev, object); \
- \
- asus->leds.object##_wk = (value > 0) ? 1 : 0; \
- queue_work(asus->leds.workqueue, \
- &asus->leds.object##_work); \
- } \
- static void object##_led_update(struct work_struct *work) \
- { \
- struct asus_laptop *asus = work_to_asus(work, object); \
- \
- int value = asus->leds.object##_wk; \
- asus_led_set(asus, method, value); \
- } \
- static enum led_brightness object##_led_get( \
- struct led_classdev *led_cdev) \
- { \
- return led_cdev->brightness; \
- }
+static void asus_led_cdev_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
+{
+ struct asus_led *led = container_of(led_cdev, struct asus_led, led);
+ struct asus_laptop *asus = led->asus;
+
+ led->wk = !!value;
+ queue_work(asus->led_workqueue, &led->work);
+}
+
+static void asus_led_cdev_update(struct work_struct *work)
+{
+ struct asus_led *led = container_of(work, struct asus_led, work);
+ struct asus_laptop *asus = led->asus;

-ASUS_LED_HANDLER(mled, METHOD_MLED);
-ASUS_LED_HANDLER(pled, METHOD_PLED);
-ASUS_LED_HANDLER(rled, METHOD_RLED);
-ASUS_LED_HANDLER(tled, METHOD_TLED);
-ASUS_LED_HANDLER(gled, METHOD_GLED);
+ asus_led_set(asus, led->method, led->wk);
+}
+
+static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev)
+{
+ return led_cdev->brightness;
+}

/*
* Keyboard backlight (also a LED)
@@ -452,70 +420,76 @@ static int asus_kled_set(struct asus_laptop *asus, int kblv)
return 0;
}

-static void kled_led_set(struct led_classdev *led_cdev,
- enum led_brightness value)
+static void asus_kled_cdev_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
{
- struct asus_laptop *asus = led_to_asus(led_cdev, kled);
+ struct asus_led *led = container_of(led_cdev, struct asus_led, led);
+ struct asus_laptop *asus = led->asus;

- asus->leds.kled_wk = value;
- queue_work(asus->leds.workqueue, &asus->leds.kled_work);
+ led->wk = value;
+ queue_work(asus->led_workqueue, &led->work);
}

-static void kled_led_update(struct work_struct *work)
+static void asus_kled_cdev_update(struct work_struct *work)
{
- struct asus_laptop *asus = work_to_asus(work, kled);
+ struct asus_led *led = container_of(work, struct asus_led, work);
+ struct asus_laptop *asus = led->asus;

- asus_kled_set(asus, asus->leds.kled_wk);
+ asus_kled_set(asus, led->wk);
}

-static enum led_brightness kled_led_get(struct led_classdev *led_cdev)
+static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev)
{
- struct asus_laptop *asus = led_to_asus(led_cdev, kled);
+ struct asus_led *led = container_of(led_cdev, struct asus_led, led);
+ struct asus_laptop *asus = led->asus;

return asus_kled_lvl(asus);
}

static void asus_led_exit(struct asus_laptop *asus)
{
- if (asus->leds.mled.dev)
- led_classdev_unregister(&asus->leds.mled);
- if (asus->leds.tled.dev)
- led_classdev_unregister(&asus->leds.tled);
- if (asus->leds.pled.dev)
- led_classdev_unregister(&asus->leds.pled);
- if (asus->leds.rled.dev)
- led_classdev_unregister(&asus->leds.rled);
- if (asus->leds.gled.dev)
- led_classdev_unregister(&asus->leds.gled);
- if (asus->leds.kled.dev)
- led_classdev_unregister(&asus->leds.kled);
- if (asus->leds.workqueue) {
- destroy_workqueue(asus->leds.workqueue);
- asus->leds.workqueue = NULL;
+ if (asus->mled.led.dev)
+ led_classdev_unregister(&asus->mled.led);
+ if (asus->tled.led.dev)
+ led_classdev_unregister(&asus->tled.led);
+ if (asus->pled.led.dev)
+ led_classdev_unregister(&asus->pled.led);
+ if (asus->rled.led.dev)
+ led_classdev_unregister(&asus->rled.led);
+ if (asus->gled.led.dev)
+ led_classdev_unregister(&asus->gled.led);
+ if (asus->kled.led.dev)
+ led_classdev_unregister(&asus->kled.led);
+ if (asus->led_workqueue) {
+ destroy_workqueue(asus->led_workqueue);
+ asus->led_workqueue = NULL;
}
}

/* Ugly macro, need to fix that later */
-#define ASUS_LED_REGISTER(asus, object, _name, max, method) \
- do { \
- struct led_classdev *ldev = &asus->leds.object; \
- \
- if (method && acpi_check_handle(asus->handle, method, NULL)) \
- break ; \
- \
- INIT_WORK(&asus->leds.object##_work, object##_led_update); \
- ldev->name = "asus::" _name; \
- ldev->brightness_set = object##_led_set; \
- ldev->brightness_get = object##_led_get; \
- ldev->max_brightness = max; \
- rv = led_classdev_register(&asus->platform_device->dev, ldev); \
- if (rv) \
- goto error; \
- } while (0)
+static int asus_led_register(struct asus_laptop *asus,
+ struct asus_led *led,
+ const char *name, const char *method)
+{
+ struct led_classdev *led_cdev = &led->led;
+
+ if (!method || acpi_check_handle(asus->handle, method, NULL))
+ return 0; /* Led not present */
+
+ led->asus = asus;
+ led->method = method;
+
+ INIT_WORK(&led->work, asus_led_cdev_update);
+ led_cdev->name = name;
+ led_cdev->brightness_set = asus_led_cdev_set;
+ led_cdev->brightness_get = asus_led_cdev_get;
+ led_cdev->max_brightness = 1;
+ return led_classdev_register(&asus->platform_device->dev, led_cdev);
+}

static int asus_led_init(struct asus_laptop *asus)
{
- int rv;
+ int r;

/*
* Functions that actually update the LED's are called from a
@@ -523,22 +497,43 @@ static int asus_led_init(struct asus_laptop *asus)
* subsystem asks, we avoid messing with the Asus ACPI stuff during a
* potentially bad time, such as a timer interrupt.
*/
- asus->leds.workqueue = create_singlethread_workqueue("led_workqueue");
- if (!asus->leds.workqueue)
+ asus->led_workqueue = create_singlethread_workqueue("led_workqueue");
+ if (!asus->led_workqueue)
return -ENOMEM;

- ASUS_LED_REGISTER(asus, mled, "mail", 1, METHOD_MLED);
- ASUS_LED_REGISTER(asus, tled, "touchpad", 1, METHOD_TLED);
- ASUS_LED_REGISTER(asus, rled, "record", 1, METHOD_RLED);
- ASUS_LED_REGISTER(asus, pled, "phone", 1, METHOD_PLED);
- ASUS_LED_REGISTER(asus, gled, "gaming", 1, METHOD_GLED);
+ r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED);
+ if (r)
+ goto error;
+ r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED);
+ if (r)
+ goto error;
+ r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED);
+ if (r)
+ goto error;
+ r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED);
+ if (r)
+ goto error;
+ r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED);
+ if (r)
+ goto error;
if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) &&
- !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL))
- ASUS_LED_REGISTER(asus, kled, "kbd_backlight", 3, NULL);
+ !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) {
+ struct asus_led *led = &asus->kled;
+ struct led_classdev *cdev = &led->led;
+
+ led->asus = asus;
+
+ INIT_WORK(&led->work, asus_kled_cdev_update);
+ cdev->name = "asus::kbd_backlight";
+ cdev->brightness_set = asus_kled_cdev_set;
+ cdev->brightness_get = asus_kled_cdev_get;
+ cdev->max_brightness = 3;
+ r = led_classdev_register(&asus->platform_device->dev, cdev);
+ }
error:
- if (rv)
+ if (r)
asus_led_exit(asus);
- return rv;
+ return r;
}

/*
--
1.6.6.1


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