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author | Tony Lindgren <tony@atomide.com> | 2010-12-17 15:14:02 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2010-12-17 15:14:02 -0800 |
commit | fea83f6a9b0a90fefca16ac3534e308f6c34144b (patch) | |
tree | 3da88c54c83a1cb8ef53db62c9c2c7fc2c2ecbe5 /arch/sparc/prom/console_32.c | |
parent | df127ee375af4cb40b979605e0c336fc79bd38e7 (diff) | |
parent | 2d200665c37f544f648d77a05a06ab63328f0d3a (diff) | |
download | linux-fea83f6a9b0a90fefca16ac3534e308f6c34144b.tar.bz2 |
Merge branch 'devel-board' into omap-for-linus
Diffstat (limited to 'arch/sparc/prom/console_32.c')
-rw-r--r-- | arch/sparc/prom/console_32.c | 65 |
1 files changed, 12 insertions, 53 deletions
diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c index 5340264b78f5..48863108a44c 100644 --- a/arch/sparc/prom/console_32.c +++ b/arch/sparc/prom/console_32.c @@ -16,63 +16,26 @@ extern void restore_current(void); -/* Non blocking get character from console input device, returns -1 - * if no input was taken. This can be used for polling. - */ -int -prom_nbgetchar(void) -{ - static char inc; - int i = -1; - unsigned long flags; - - spin_lock_irqsave(&prom_lock, flags); - switch(prom_vers) { - case PROM_V0: - i = (*(romvec->pv_nbgetchar))(); - break; - case PROM_V2: - case PROM_V3: - if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) { - i = inc; - } else { - i = -1; - } - break; - default: - i = -1; - break; - }; - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); - return i; /* Ugh, we could spin forever on unsupported proms ;( */ -} - /* Non blocking put character to console device, returns -1 if * unsuccessful. */ -int -prom_nbputchar(char c) +static int prom_nbputchar(const char *buf) { - static char outc; unsigned long flags; int i = -1; spin_lock_irqsave(&prom_lock, flags); switch(prom_vers) { case PROM_V0: - i = (*(romvec->pv_nbputchar))(c); + i = (*(romvec->pv_nbputchar))(*buf); break; case PROM_V2: case PROM_V3: - outc = c; - if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1) + if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, + buf, 0x1) == 1) i = 0; - else - i = -1; break; default: - i = -1; break; }; restore_current(); @@ -80,18 +43,14 @@ prom_nbputchar(char c) return i; /* Ugh, we could spin forever on unsupported proms ;( */ } -/* Blocking version of get character routine above. */ -char -prom_getchar(void) +void prom_console_write_buf(const char *buf, int len) { - int character; - while((character = prom_nbgetchar()) == -1) ; - return (char) character; + while (len) { + int n = prom_nbputchar(buf); + if (n) + continue; + len--; + buf++; + } } -/* Blocking version of put character routine above. */ -void -prom_putchar(char c) -{ - while(prom_nbputchar(c) == -1) ; -} |