diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2005-11-30 16:54:12 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 14:51:22 +1100 |
| commit | bb6b9b28d6847bc71f910e2e82c9040ff4b97ec0 (patch) | |
| tree | 97b0acaade2d32ddb37147ff5112318f6c292cf8 /arch/powerpc/platforms/powermac/udbg_scc.c | |
| parent | 54b9a9aedc990dd2aefc45ab16d84f245cb7d8d0 (diff) | |
| download | lwn-bb6b9b28d6847bc71f910e2e82c9040ff4b97ec0.tar.gz lwn-bb6b9b28d6847bc71f910e2e82c9040ff4b97ec0.zip | |
[PATCH] powerpc: udbg updates
The udbg low level io layer has an issue with udbg_getc() returning a
char (unsigned on ppc) instead of an int, thus the -1 if you had no
available input device could end up turned into 0xff, filling your
display with bogus characters. This fixes it, along with adding a little
blob to xmon to do a delay before exiting when getting an EOF and fixing
the detection of ADB keyboards in udbg_adb.c
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/powermac/udbg_scc.c')
| -rw-r--r-- | arch/powerpc/platforms/powermac/udbg_scc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/powermac/udbg_scc.c b/arch/powerpc/platforms/powermac/udbg_scc.c index df6dec49c4c7..e87d53acfb61 100644 --- a/arch/powerpc/platforms/powermac/udbg_scc.c +++ b/arch/powerpc/platforms/powermac/udbg_scc.c @@ -47,14 +47,14 @@ static int udbg_scc_getc_poll(void) return -1; } -static char udbg_scc_getc(void) +static int udbg_scc_getc(void) { if (sccc) { while ((in_8(sccc) & SCC_RXRDY) == 0) ; return in_8(sccd); } - return 0; + return -1; } static unsigned char scc_inittab[] = { |