diff options
| author | Devin Heitmueller <dheitmueller@kernellabs.com> | 2012-08-06 22:46:51 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-08-09 20:29:15 -0300 |
| commit | a307cfa55e2bf7889792e158e45355ccb1e63d80 (patch) | |
| tree | 2a9e4ec3afb2535d04617c4b093edcc0a5873b50 /drivers/media/dvb | |
| parent | cf5337358548b813479b58478539fc20ee86556c (diff) | |
[media] au8522: fix intermittent lockup of analog video decoder
It turns up the autodetection for the video standard in the au8522 is
prone to hanging the chip until a reset is performed. This condition is
trivial to reproduce simply by tuning to a station and then rapidly
unplugging/ replugging the coax feed.
Because we've never claimed to support anything other than NTSC-M, just
disable the video-standard autodetection logic and force it to always be
NTSC-M.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb')
| -rw-r--r-- | drivers/media/dvb/frontends/au8522_decoder.c | 6 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/au8522_priv.h | 28 |
2 files changed, 29 insertions, 5 deletions
diff --git a/drivers/media/dvb/frontends/au8522_decoder.c b/drivers/media/dvb/frontends/au8522_decoder.c index 55b6390198e..f2e786b606f 100644 --- a/drivers/media/dvb/frontends/au8522_decoder.c +++ b/drivers/media/dvb/frontends/au8522_decoder.c @@ -257,9 +257,11 @@ static void setup_decoder_defaults(struct au8522_state *state, u8 input_mode) au8522_writereg(state, AU8522_TVDED_DBG_MODE_REG060H, AU8522_TVDED_DBG_MODE_REG060H_CVBS); au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL1_REG061H, - AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13); + AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 | + AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_MN); au8522_writereg(state, AU8522_TVDEC_FORMAT_CTRL2_REG062H, - AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13); + AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_NTSC); au8522_writereg(state, AU8522_TVDEC_VCR_DET_LLIM_REG063H, AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS); au8522_writereg(state, AU8522_TVDEC_VCR_DET_HLIM_REG064H, diff --git a/drivers/media/dvb/frontends/au8522_priv.h b/drivers/media/dvb/frontends/au8522_priv.h index 6e4a438732b..9f44a7be314 100644 --- a/drivers/media/dvb/frontends/au8522_priv.h +++ b/drivers/media/dvb/frontends/au8522_priv.h @@ -325,6 +325,31 @@ int au8522_led_ctrl(struct au8522_state *state, int led); /**************************************************************/ +/* Format control 1 */ + +/* VCR Mode 7-6 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_VCR_MODE_YES 0x80 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_VCR_MODE_NO 0x40 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_VCR_MODE_AUTO 0x00 +/* Field len 5-4 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_625 0x20 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_525 0x10 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_FIELD_LEN_AUTO 0x00 +/* Line len (us) 3-2 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_64_000 0x0b +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_492 0x08 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_LINE_LEN_63_556 0x04 +/* Subcarrier freq 1-0 */ +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_AUTO 0x03 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_443 0x02 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_MN 0x01 +#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_SUBCARRIER_NTSC_50 0x00 + +/* Format control 2 */ +#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_AUTODETECT 0x00 +#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_STD_NTSC 0x01 + + #define AU8522_INPUT_CONTROL_REG081H_ATSC 0xC4 #define AU8522_INPUT_CONTROL_REG081H_ATVRF 0xC4 #define AU8522_INPUT_CONTROL_REG081H_ATVRF13 0xC4 @@ -385,9 +410,6 @@ int au8522_led_ctrl(struct au8522_state *state, int led); #define AU8522_TVDEC_COMB_MODE_REG015H_CVBS 0x00 #define AU8522_REG016H_CVBS 0x00 #define AU8522_TVDED_DBG_MODE_REG060H_CVBS 0x00 -#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS 0x0B -#define AU8522_TVDEC_FORMAT_CTRL1_REG061H_CVBS13 0x03 -#define AU8522_TVDEC_FORMAT_CTRL2_REG062H_CVBS13 0x00 #define AU8522_TVDEC_VCR_DET_LLIM_REG063H_CVBS 0x19 #define AU8522_REG0F9H_AUDIO 0x20 #define AU8522_TVDEC_VCR_DET_HLIM_REG064H_CVBS 0xA7 |