[PATCH] alpha console callbacks

From Jeff.Wiedemeier@hp.com:

Add open_console / close_console callback definitions.

arch/alpha/lib/callback_srm.S

@@ -78,6 +78,8 @@ CALLBACK(puts, CCB_PUTS, 4)
 CALLBACK(open, CCB_OPEN, 3)
 CALLBACK(close, CCB_CLOSE, 2)
 CALLBACK(read, CCB_READ, 5)
+CALLBACK(open_console, CCB_OPEN_CONSOLE, 1)
+CALLBACK(close_console, CCB_CLOSE_CONSOLE, 1)
 CALLBACK(getenv, CCB_GET_ENV, 4)
 CALLBACK(setenv, CCB_SET_ENV, 4)
 CALLBACK(getc, CCB_GETC, 2)

include/asm-alpha/console.h

@@ -10,6 +10,8 @@
 #define CCB_SET_TERM_INT	0x04
 #define CCB_SET_TERM_CTL	0x05
 #define CCB_PROCESS_KEYCODE	0x06
+#define CCB_OPEN_CONSOLE	0x07
+#define CCB_CLOSE_CONSOLE	0x08
 
 #define CCB_OPEN		0x10
 #define CCB_CLOSE		0x11
@@ -47,6 +49,9 @@
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 extern long callback_puts(long unit, const char *s, long length);
+extern long callback_getc(long unit);
+extern long callback_open_console(void);
+extern long callback_close_console(void);
 extern long callback_open(const char *device, long length);
 extern long callback_close(long unit);
 extern long callback_read(long channel, long count, const char *buf, long lbn);