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tvafe: update snow playing nosig state [1/1]

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PD#SWPL-12778

Problem:
atv signal can't recover after hot plug cable

Solution:
update snow playing nosig state

Verify:
x301

Change-Id: I143ca203c60e5090d41e543306f3929b4544af0c
Signed-off-by: Evoke Zhang <evoke.zhang@amlogic.com>
This commit is contained in:
Evoke Zhang
2019-08-20 15:02:30 +08:00
committed by Tao Zeng
parent 1f2c3eb99d
commit 4d9130d59e
3 changed files with 18 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/amlogic/media/vin/tvin/tvafe/tvafe.c
View File

@@ -700,8 +700,22 @@ bool tvafe_is_nosig(struct tvin_frontend_s *fe)
ret = tvafe_cvd2_no_sig(&tvafe->cvd2, &devp->mem);
if ((!tvafe_mode) && (port == TVIN_PORT_CVBS3) &&
(devp->flags & TVAFE_FLAG_DEV_SNOW_FLAG)) /* playing snow */
ret = true;
(devp->flags & TVAFE_FLAG_DEV_SNOW_FLAG)) { /* playing snow */
tvafe->cvd2.info.snow_state[3] = tvafe->cvd2.info.snow_state[2];
tvafe->cvd2.info.snow_state[2] = tvafe->cvd2.info.snow_state[1];
tvafe->cvd2.info.snow_state[1] = tvafe->cvd2.info.snow_state[0];
if (ret)
tvafe->cvd2.info.snow_state[0] = 0;
else
tvafe->cvd2.info.snow_state[0] = 1;
if ((tvafe->cvd2.info.snow_state[3] +
tvafe->cvd2.info.snow_state[2] +
tvafe->cvd2.info.snow_state[1] +
tvafe->cvd2.info.snow_state[0]) == 4)
ret = false;
else
ret = true;
}
if ((port == TVIN_PORT_CVBS3) &&
(tvafe->cvd2.config_fmt == TVIN_SIG_FMT_CVBS_PAL_I)) {
/*fix black side when config atv snow*/

1
drivers/amlogic/media/vin/tvin/tvafe/tvafe_cvd.h
View File

@@ -136,6 +136,7 @@ struct tvafe_cvd2_info_s {
unsigned short dgain[4];
unsigned short dgain_cnt;
#endif
unsigned char snow_state[4]; /* 0:nosig, 1:stable */
unsigned int comb_check_cnt;
unsigned int fmt_shift_cnt;
unsigned short nonstd_cnt;

2
drivers/amlogic/media/vin/tvin/tvafe/tvafe_debug.c
View File

@@ -491,7 +491,7 @@ static const char *tvafe_debug_usage_str = {
"\n"
" echo afe_ver > /sys/class/tvafe/tvafe0/debug;show tvafe version\n"
"\n"
" echo snow val(d) > /sys/class/tvafe/tvafe0/debug;snow on/off\n"
" echo snowon val(d) > /sys/class/tvafe/tvafe0/debug;snow on/off\n"
"\n"
" echo frame_skip_enable val(d) > /sys/class/tvafe/tvafe0/debug;frame skip enable/disable\n"
"\n"