X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Flcd.h;h=c67fecafff909ccb2c7dc1084de264d2192c845c;hb=9a1607071c293e48b08bd703733480b1d55c7b93;hp=bfbf6552eb5158e2427032eb2ab6cea4e98073ea;hpb=28ee086d5b36aab2931f6740e409bb0fb6c65e5f;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/linux/lcd.h b/include/linux/lcd.h
index bfbf655..c67feca 100644
--- a/include/linux/lcd.h
+++ b/include/linux/lcd.h
@@ -11,10 +11,11 @@
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/notifier.h>
+#include <linux/fb.h>
 
 /* Notes on locking:
  *
- * lcd_device->sem is an internal backlight lock protecting the props
+ * 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
@@ -30,51 +31,62 @@
 struct lcd_device;
 struct fb_info;
 
-/* This structure defines all the properties of a LCD flat panel. */
 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);
-	/* The maximum value for contrast (read-only) */
-	int max_contrast;
 	/* 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 fb_info *);
+	int (*check_fb)(struct lcd_device *, struct fb_info *);
 };
 
 struct lcd_device {
-	/* This protects the 'props' field. If 'props' is NULL, the driver that
+	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 semaphore sem;
+	struct mutex ops_lock;
 	/* If this is NULL, the backing module is unloaded */
-	struct lcd_properties *props;
+	struct lcd_ops *ops;
 	/* Serialise access to set_power method */
 	struct mutex update_lock;
 	/* The framebuffer notifier block */
 	struct notifier_block fb_notif;
-	/* The class device structure */
-	struct class_device class_dev;
+
+	struct device dev;
 };
 
 static inline void lcd_set_power(struct lcd_device *ld, int power)
 {
 	mutex_lock(&ld->update_lock);
-	if (ld->props && ld->props->set_power)
-		ld->props->set_power(ld, power);
+	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,
-	void *devdata, struct lcd_properties *lp);
+	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, class_dev)
+#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