Merge suse.cz:/data2/bk/linus into suse.cz:/data2/bk/input

1 files changed, 49 insertions, 17 deletions

diff --git a/include/linux/serio.h b/include/linux/serio.h
index be0ccba864c6..f84b362a561f 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -17,12 +17,17 @@
 #ifdef __KERNEL__
 
 #include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/device.h>
 
 struct serio {
 	void *private;
-	void *driver;
-	char *name;
-	char *phys;
+	void *port_data;
+
+	char name[32];
+	char phys[32];
+
+	unsigned int manual_bind;
 
 	unsigned short idbus;
 	unsigned short idvendor;
@@ -32,31 +37,43 @@ struct serio {
 	unsigned long type;
 	unsigned long event;
 
+	spinlock_t lock;		/* protects critical sections from port's interrupt handler */
+
 	int (*write)(struct serio *, unsigned char);
 	int (*open)(struct serio *);
 	void (*close)(struct serio *);
 
-	struct serio_dev *dev;
+	struct serio *parent, *child;
+
+	struct serio_driver *drv;	/* accessed from interrupt, must be protected by serio->lock */
+
+	struct device dev;
 
 	struct list_head node;
 };
+#define to_serio_port(d)	container_of(d, struct serio, dev)
 
-struct serio_dev {
+struct serio_driver {
 	void *private;
-	char *name;
+	char *description;
+
+	unsigned int manual_bind;
 
 	void (*write_wakeup)(struct serio *);
 	irqreturn_t (*interrupt)(struct serio *, unsigned char,
 			unsigned int, struct pt_regs *);
-	void (*connect)(struct serio *, struct serio_dev *dev);
+	void (*connect)(struct serio *, struct serio_driver *drv);
 	int  (*reconnect)(struct serio *);
 	void (*disconnect)(struct serio *);
 	void (*cleanup)(struct serio *);
 
+	struct device_driver driver;
+
 	struct list_head node;
 };
+#define to_serio_driver(d)	container_of(d, struct serio_driver, driver)
 
-int serio_open(struct serio *serio, struct serio_dev *dev);
+int serio_open(struct serio *serio, struct serio_driver *drv);
 void serio_close(struct serio *serio);
 void serio_rescan(struct serio *serio);
 void serio_reconnect(struct serio *serio);
@@ -64,12 +81,11 @@ irqreturn_t serio_interrupt(struct serio *serio, unsigned char data, unsigned in
 
 void serio_register_port(struct serio *serio);
 void serio_register_port_delayed(struct serio *serio);
-void __serio_register_port(struct serio *serio);
 void serio_unregister_port(struct serio *serio);
 void serio_unregister_port_delayed(struct serio *serio);
-void __serio_unregister_port(struct serio *serio);
-void serio_register_device(struct serio_dev *dev);
-void serio_unregister_device(struct serio_dev *dev);
+
+void serio_register_driver(struct serio_driver *drv);
+void serio_unregister_driver(struct serio_driver *drv);
 
 static __inline__ int serio_write(struct serio *serio, unsigned char data)
 {
@@ -79,18 +95,34 @@ static __inline__ int serio_write(struct serio *serio, unsigned char data)
 		return -1;
 }
 
-static __inline__ void serio_dev_write_wakeup(struct serio *serio)
+static __inline__ void serio_drv_write_wakeup(struct serio *serio)
 {
-	if (serio->dev && serio->dev->write_wakeup)
-		serio->dev->write_wakeup(serio);
+	if (serio->drv && serio->drv->write_wakeup)
+		serio->drv->write_wakeup(serio);
 }
 
 static __inline__ void serio_cleanup(struct serio *serio)
 {
-	if (serio->dev && serio->dev->cleanup)
-		serio->dev->cleanup(serio);
+	if (serio->drv && serio->drv->cleanup)
+		serio->drv->cleanup(serio);
+}
+
+
+/*
+ * Use the following fucntions to protect critical sections in
+ * driver code from port's interrupt handler
+ */
+static __inline__ void serio_pause_rx(struct serio *serio)
+{
+	spin_lock_irq(&serio->lock);
 }
 
+static __inline__ void serio_continue_rx(struct serio *serio)
+{
+	spin_unlock_irq(&serio->lock);
+}
+
+
 #endif
 
 /*