From df7fa09cca9d80f746c29f95b09a7223f6c2f4e7 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 25 Feb 2009 09:06:13 -0300 Subject: [PATCH] V4L/DVB (10654): em28xx: VideoMate For You USB TV box requires tvaudio As reported by Vitaly Wool : > about half a year ago I posted the patch that basically enabled Compro > VideoMate For You USB TV box support. > The main problem is I couldn't get the sound working. > So I kind of decomposed the box and found out the audio decoder chip > used there was Philips TDA9874A. As far as I can see, it's not supported > within the em28xx suite although it is for other TV tuner drivers. A tvaudio modprobing confirms that tda9874a chip is accessible via i2c: tvaudio: TV audio decoder + audio/video mux driver tvaudio: known chips: tda9840, tda9873h, tda9874h/a, tda9850, tda9855, tea6300, tea6320, tea6420, tda8425, pic16c54 (PV951), ta8874z tvaudio' 1-0058: chip found @ 0xb0 tvaudio' 1-0058: tvaudio': chip_read2: reg254=0x11 tvaudio' 1-0058: tvaudio': chip_read2: reg255=0x2 tvaudio' 1-0058: tda9874a_checkit(): DIC=0x11, SIC=0x2. tvaudio' 1-0058: found tda9874a. tvaudio' 1-0058: tda9874h/a found @ 0xb0 (em28xx #0) tvaudio' 1-0058: tda9874h/a: chip_write: reg0=0x0 tvaudio' 1-0058: tda9874h/a: chip_write: reg1=0xc0 tvaudio' 1-0058: tda9874h/a: chip_write: reg2=0x2 tvaudio' 1-0058: tda9874h/a: chip_write: reg11=0x80 tvaudio' 1-0058: tda9874h/a: chip_write: reg12=0x0 tvaudio' 1-0058: tda9874h/a: chip_write: reg13=0x0 tvaudio' 1-0058: tda9874h/a: chip_write: reg14=0x1 tvaudio' 1-0058: tda9874h/a: chip_write: reg15=0x0 tvaudio' 1-0058: tda9874h/a: chip_write: reg16=0x14 tvaudio' 1-0058: tda9874h/a: chip_write: reg17=0x50 tvaudio' 1-0058: tda9874h/a: chip_write: reg18=0xf9 tvaudio' 1-0058: tda9874h/a: chip_write: reg19=0x80 tvaudio' 1-0058: tda9874h/a: chip_write: reg20=0x80 tvaudio' 1-0058: tda9874h/a: chip_write: reg24=0x80 tvaudio' 1-0058: tda9874h/a: chip_write: reg255=0x0 tvaudio' 1-0058: tda9874a_setup(): A2, B/G [0x00]. tvaudio' 1-0058: tda9874h/a: thread started] This patch automatically loads tvaudio when needed (currently, only with this board). Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-cards.c | 3 +++ drivers/media/video/em28xx/em28xx.h | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 615cf362e79c..2b27460dae35 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -1244,6 +1244,7 @@ struct em28xx_board em28xx_boards[] = { .tuner_type = TUNER_LG_PAL_NEW_TAPC, .tda9887_conf = TDA9887_PRESENT, .decoder = EM28XX_TVP5150, + .adecoder = EM28XX_TVAUDIO, .input = { { .type = EM28XX_VMUX_TELEVISION, .vmux = TVP5150_COMPOSITE0, @@ -1917,6 +1918,8 @@ void em28xx_card_setup(struct em28xx *dev) request_module("tvp5150"); if (dev->board.tuner_type != TUNER_ABSENT) request_module("tuner"); + if (dev->board.adecoder == EM28XX_TVAUDIO) + request_module("tvaudio"); #endif em28xx_config_tuner(dev); diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 3e82d818c0cd..89a793cb8ca4 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -357,6 +357,11 @@ enum em28xx_decoder { EM28XX_SAA711X, }; +enum em28xx_adecoder { + EM28XX_NOADECODER = 0, + EM28XX_TVAUDIO, +}; + struct em28xx_board { char *name; int vchannels; @@ -382,6 +387,7 @@ struct em28xx_board { unsigned char xclk, i2c_speed; enum em28xx_decoder decoder; + enum em28xx_adecoder adecoder; struct em28xx_input input[MAX_EM28XX_INPUT]; struct em28xx_input radio; -- 2.30.2