diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/lcd.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/lcd.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/ANDROID_3.4.5/include/linux/lcd.h b/ANDROID_3.4.5/include/linux/lcd.h deleted file mode 100644 index 8877123f..00000000 --- a/ANDROID_3.4.5/include/linux/lcd.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * LCD Lowlevel Control Abstraction - * - * Copyright (C) 2003,2004 Hewlett-Packard Company - * - */ - -#ifndef _LINUX_LCD_H -#define _LINUX_LCD_H - -#include <linux/device.h> -#include <linux/mutex.h> -#include <linux/notifier.h> -#include <linux/fb.h> - -/* Notes on locking: - * - * lcd_device->ops_lock is an internal backlight lock protecting the ops - * field and no code outside the core should need to touch it. - * - * Access to set_power() is serialised by the update_lock mutex since - * most drivers seem to need this and historically get it wrong. - * - * Most drivers don't need locking on their get_power() method. - * If yours does, you need to implement it in the driver. You can use the - * update_lock mutex if appropriate. - * - * Any other use of the locks below is probably wrong. - */ - -struct lcd_device; -struct fb_info; - -struct lcd_properties { - /* The maximum value for contrast (read-only) */ - int max_contrast; -}; - -struct lcd_ops { - /* Get the LCD panel power status (0: full on, 1..3: controller - power on, flat panel power off, 4: full off), see FB_BLANK_XXX */ - int (*get_power)(struct lcd_device *); - /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */ - int (*set_power)(struct lcd_device *, int power); - /* Get the current contrast setting (0-max_contrast) */ - int (*get_contrast)(struct lcd_device *); - /* Set LCD panel contrast */ - int (*set_contrast)(struct lcd_device *, int contrast); - /* Set LCD panel mode (resolutions ...) */ - int (*set_mode)(struct lcd_device *, struct fb_videomode *); - /* Check if given framebuffer device is the one LCD is bound to; - return 0 if not, !=0 if it is. If NULL, lcd always matches the fb. */ - int (*check_fb)(struct lcd_device *, struct fb_info *); -}; - -struct lcd_device { - struct lcd_properties props; - /* This protects the 'ops' field. If 'ops' is NULL, the driver that - registered this device has been unloaded, and if class_get_devdata() - points to something in the body of that driver, it is also invalid. */ - struct mutex ops_lock; - /* If this is NULL, the backing module is unloaded */ - struct lcd_ops *ops; - /* Serialise access to set_power method */ - struct mutex update_lock; - /* The framebuffer notifier block */ - struct notifier_block fb_notif; - - struct device dev; -}; - -struct lcd_platform_data { - /* reset lcd panel device. */ - int (*reset)(struct lcd_device *ld); - /* on or off to lcd panel. if 'enable' is 0 then - lcd power off and 1, lcd power on. */ - int (*power_on)(struct lcd_device *ld, int enable); - - /* it indicates whether lcd panel was enabled - from bootloader or not. */ - int lcd_enabled; - /* it means delay for stable time when it becomes low to high - or high to low that is dependent on whether reset gpio is - low active or high active. */ - unsigned int reset_delay; - /* stable time needing to become lcd power on. */ - unsigned int power_on_delay; - /* stable time needing to become lcd power off. */ - unsigned int power_off_delay; - - /* it could be used for any purpose. */ - void *pdata; -}; - -static inline void lcd_set_power(struct lcd_device *ld, int power) -{ - mutex_lock(&ld->update_lock); - if (ld->ops && ld->ops->set_power) - ld->ops->set_power(ld, power); - mutex_unlock(&ld->update_lock); -} - -extern struct lcd_device *lcd_device_register(const char *name, - struct device *parent, void *devdata, struct lcd_ops *ops); -extern void lcd_device_unregister(struct lcd_device *ld); - -#define to_lcd_device(obj) container_of(obj, struct lcd_device, dev) - -static inline void * lcd_get_data(struct lcd_device *ld_dev) -{ - return dev_get_drvdata(&ld_dev->dev); -} - - -#endif |