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| author | Andy Walls <awalls@radix.net> | 2008-11-02 10:59:04 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-29 17:53:26 -0200 |
| commit | ced07371d931884c9c89b66bfe951ea0148a8d08 (patch) | |
| tree | 607a83c66ff40f43bb9ce28839cb5ff9c35736a5 /drivers/media/video/cx18/cx18-av-core.h | |
| parent | 48fc6bb37ba8ee278a8cc647a4ef2bf529b519dd (diff) | |
| download | kernel_samsung_smdk4412-ced07371d931884c9c89b66bfe951ea0148a8d08.zip kernel_samsung_smdk4412-ced07371d931884c9c89b66bfe951ea0148a8d08.tar.gz kernel_samsung_smdk4412-ced07371d931884c9c89b66bfe951ea0148a8d08.tar.bz2 | |
V4L/DVB (9512): cx18: Fix write retries for registers that always change - part 3.
cx18: Fix write retries for registers that always change - part 3.
Fix the io for the rest of the registers that will often not read back the
value just written. Modified register readback checks to make sure the
intended effect was achieved without constantly rewriting the registers.
The one outstanding register remaining is 0xc72014 CX18_AUDIO_ENABLE, whose
behavior on writes I have yet to determine.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-av-core.h')
| -rw-r--r-- | drivers/media/video/cx18/cx18-av-core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/cx18/cx18-av-core.h b/drivers/media/video/cx18/cx18-av-core.h index b67d8df..a07988c 100644 --- a/drivers/media/video/cx18/cx18-av-core.h +++ b/drivers/media/video/cx18/cx18-av-core.h @@ -302,6 +302,9 @@ struct cx18_av_state { int cx18_av_write(struct cx18 *cx, u16 addr, u8 value); int cx18_av_write4(struct cx18 *cx, u16 addr, u32 value); int cx18_av_write4_noretry(struct cx18 *cx, u16 addr, u32 value); +int cx18_av_write_expect(struct cx18 *cx, u16 addr, u8 value, u8 eval, u8 mask); +int cx18_av_write4_expect(struct cx18 *cx, u16 addr, u32 value, u32 eval, + u32 mask); u8 cx18_av_read(struct cx18 *cx, u16 addr); u32 cx18_av_read4(struct cx18 *cx, u16 addr); u32 cx18_av_read4_noretry(struct cx18 *cx, u16 addr); |