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V4L/DVB (10435): cx18: Normalize APU after second APU firmware load

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Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls
2009-01-30 22:48:40 -03:00
committed by Mauro Carvalho Chehab
parent 072e6183c2
commit d5c02f6b27
1 changed files with 13 additions and 0 deletions
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13
drivers/media/video/cx18/cx18-driver.c
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@@ -1080,6 +1080,19 @@ int cx18_init_on_first_open(struct cx18 *cx)
return -ENXIO; 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.tuner = 0;
vf.type = V4L2_TUNER_ANALOG_TV; vf.type = V4L2_TUNER_ANALOG_TV;
vf.frequency = 6400; /* the tuner 'baseline' frequency */ vf.frequency = 6400; /* the tuner 'baseline' frequency */