patch-2.3.4 linux/include/linux/parport.h

• Lines: 51
• Date: Tue May 25 14:57:59 1999
• Orig file: v2.3.3/linux/include/linux/parport.h
• Orig date: Mon May 17 09:55:23 1999

diff -u --recursive --new-file v2.3.3/linux/include/linux/parport.h linux/include/linux/parport.h
@@ -212,6 +212,13 @@
 	rwlock_t cad_lock;
 };
 
+struct parport_driver {
+	const char *name;
+	void (*attach) (struct parport *);
+	void (*detach) (struct parport *);
+	struct parport_driver *next;
+};
+
 /* parport_register_port registers a new parallel port at the given address (if
  * one does not already exist) and returns a pointer to it.  This entails
  * claiming the I/O region, IRQ and DMA.
@@ -220,6 +227,13 @@
 struct parport *parport_register_port(unsigned long base, int irq, int dma,
 				      struct parport_operations *ops);
 
+/* Once a registered port is ready for high-level drivers to use, the
+   low-level driver that registered it should announce it.  This will
+   call the high-level drivers' attach() functions (after things like
+   determining the IEEE 1284.3 topology of the port and collecting
+   DeviceIDs). */
+void parport_announce_port (struct parport *port);
+
 /* Unregister a port. */
 extern void parport_unregister_port(struct parport *port);
 
@@ -235,6 +249,12 @@
  */
 struct parport *parport_enumerate(void);
 
+/* Register a new high-level driver. */
+extern int parport_register_driver (struct parport_driver *);
+
+/* Unregister a high-level driver. */
+extern void parport_unregister_driver (struct parport_driver *);
+
 /* parport_register_device declares that a device is connected to a port, and 
  * tells the kernel all it needs to know.  
  * pf is the preemption function (may be NULL for no callback)
@@ -322,7 +342,8 @@
 #define PARPORT_FLAG_COMA		(1<<0)
 #define PARPORT_FLAG_EXCL		(1<<1)	/* EXCL driver registered. */
 
-extern void parport_parse_irqs(int, const char *[], int irqval[]);
+extern int parport_parse_irqs(int, const char *[], int irqval[]);
+extern int parport_parse_dmas(int, const char *[], int irqval[]);
 extern int parport_ieee1284_nibble_mode_ok(struct parport *, unsigned char);
 extern int parport_wait_peripheral(struct parport *, unsigned char, unsigned
 				   char);