diff options
Diffstat (limited to 'arch/mips/sgi/kernel/setup.c')
| -rw-r--r-- | arch/mips/sgi/kernel/setup.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/mips/sgi/kernel/setup.c b/arch/mips/sgi/kernel/setup.c index 6b2c1846e..5107edb6f 100644 --- a/arch/mips/sgi/kernel/setup.c +++ b/arch/mips/sgi/kernel/setup.c @@ -1,9 +1,8 @@ -/* +/* $Id: setup.c,v 1.8 1998/05/06 02:46:46 ralf Exp $ + * * setup.c: SGI specific setup, including init of the feature struct. * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) - * - * $Id: setup.c,v 1.7 1998/03/04 08:47:27 ralf Exp $ */ #include <linux/init.h> #include <linux/kernel.h> @@ -31,6 +30,8 @@ struct feature sgi_feature = { static volatile struct hpc_keyb *sgi_kh = (struct hpc_keyb *) (KSEG1 + 0x1fbd9800 + 64); +#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ + static unsigned char sgi_read_input(void) { return sgi_kh->data; @@ -38,11 +39,21 @@ static unsigned char sgi_read_input(void) static void sgi_write_output(unsigned char val) { + int status; + + do { + status = sgi_kh->command; + } while (status & KBD_STAT_IBF); sgi_kh->data = val; } static void sgi_write_command(unsigned char val) { + int status; + + do { + status = sgi_kh->command; + } while (status & KBD_STAT_IBF); sgi_kh->command = val; } |