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| author | Andy Walls <awalls@radix.net> | 2009-01-30 20:48:40 -0500 |
|---|---|---|
| committer | Andy Walls <awalls@radix.net> | 2009-01-30 20:48:40 -0500 |
| commit | a5bbba89bd5698bdbde479d385a44a7b9bdecb70 (patch) | |
| tree | 034154d8761d50b72ad7bc48ed7b15d052ba4c6e /linux/drivers/media/video/cx18 | |
| parent | bb9067ce37544bf82eebcee5ce959dcef1720113 (diff) | |
| download | mediapointer-dvb-s2-a5bbba89bd5698bdbde479d385a44a7b9bdecb70.tar.gz mediapointer-dvb-s2-a5bbba89bd5698bdbde479d385a44a7b9bdecb70.tar.bz2 | |
cx18: Normalize APU after second APU firmware load
From: Andy Walls <awalls@radix.net>
Priority: normal
Signed-off-by: Andy Walls <awalls@radix.net>
Diffstat (limited to 'linux/drivers/media/video/cx18')
| -rw-r--r-- | linux/drivers/media/video/cx18/cx18-driver.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/linux/drivers/media/video/cx18/cx18-driver.c b/linux/drivers/media/video/cx18/cx18-driver.c index fe2324ef2..f48d18f69 100644 --- a/linux/drivers/media/video/cx18/cx18-driver.c +++ b/linux/drivers/media/video/cx18/cx18-driver.c @@ -1085,6 +1085,19 @@ int cx18_init_on_first_open(struct cx18 *cx) return -ENXIO; } + /* + * The second firmware load requires us to normalize the APU state, + * or the audio for the first analog capture will be badly incorrect. + * + * I can't seem to call APU_RESETAI and have it succeed without the + * APU capturing audio, so we start and stop it here to do the reset + */ + + /* MPEG Encoding, 224 kbps, MPEG Layer II, 48 ksps */ + cx18_vapi(cx, CX18_APU_START, 2, CX18_APU_ENCODING_METHOD_MPEG|0xb9, 0); + cx18_vapi(cx, CX18_APU_RESETAI, 0); + cx18_vapi(cx, CX18_APU_STOP, 1, CX18_APU_ENCODING_METHOD_MPEG); + vf.tuner = 0; vf.type = V4L2_TUNER_ANALOG_TV; vf.frequency = 6400; /* the tuner 'baseline' frequency */ |