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V4L/DVB (6955): Properly implement 12MHz I2S support 

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2008-01-05 17:01:41 -03:00
parent 0f6dac18cc
commit 3abee53e44
4 changed files with 24 additions and 17 deletions
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20
drivers/media/video/em28xx/em28xx-cards.c
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@ -174,13 +174,14 @@ struct em28xx_board em28xx_boards[] = {
} }, } },
}, },
[EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950] = { [EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950] = {
.name = "Hauppauge WinTV HVR 950", .name = "Hauppauge WinTV HVR 950",
.vchannels = 3, .vchannels = 3,
.tda9887_conf = TDA9887_PRESENT, .tda9887_conf = TDA9887_PRESENT,
.tuner_type = TUNER_XC2028, .tuner_type = TUNER_XC2028,
.has_tuner = 1, .has_tuner = 1,
.mts_firmware = 1, .mts_firmware = 1,
.decoder = EM28XX_TVP5150, .has_12mhz_i2s = 1,
.decoder = EM28XX_TVP5150,
.input = { { .input = { {
.type = EM28XX_VMUX_TELEVISION, .type = EM28XX_VMUX_TELEVISION,
.vmux = TVP5150_COMPOSITE0, .vmux = TVP5150_COMPOSITE0,
@ -641,6 +642,7 @@ static void em28xx_set_model(struct em28xx *dev)
dev->decoder = em28xx_boards[dev->model].decoder; dev->decoder = em28xx_boards[dev->model].decoder;
dev->video_inputs = em28xx_boards[dev->model].vchannels; dev->video_inputs = em28xx_boards[dev->model].vchannels;
dev->analog_gpio = em28xx_boards[dev->model].analog_gpio; dev->analog_gpio = em28xx_boards[dev->model].analog_gpio;
dev->has_12mhz_i2s = em28xx_boards[dev->model].has_12mhz_i2s;
if (!em28xx_boards[dev->model].has_tuner) if (!em28xx_boards[dev->model].has_tuner)
dev->tuner_type = UNSET; dev->tuner_type = UNSET;
@ -676,10 +678,6 @@ void em28xx_card_setup(struct em28xx *dev)
if (tv.has_ir) if (tv.has_ir)
request_module("ir-kbd-i2c"); request_module("ir-kbd-i2c");
#endif #endif
/* enable audio 12 mhz i2s */
em28xx_write_regs(dev, XCLK_REG, "\xa7", 1);
msleep(10);
break; break;
} }
case EM2820_BOARD_KWORLD_PVRTV2800RF: case EM2820_BOARD_KWORLD_PVRTV2800RF:

11
drivers/media/video/em28xx/em28xx-core.c
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@ -332,6 +332,7 @@ int em28xx_audio_analog_set(struct em28xx *dev)
{ {
int ret; int ret;
char s[2] = { 0x00, 0x00 }; char s[2] = { 0x00, 0x00 };
u8 xclk = 0x07;
s[0] |= 0x1f - dev->volume; s[0] |= 0x1f - dev->volume;
s[1] |= 0x1f - dev->volume; s[1] |= 0x1f - dev->volume;
@ -342,10 +343,16 @@ int em28xx_audio_analog_set(struct em28xx *dev)
if (ret < 0) if (ret < 0)
return ret; return ret;
ret = em28xx_write_reg_bits(dev, XCLK_REG, if (dev->has_12mhz_i2s)
dev->mute ? 0x00 : 0x80, 0x80); xclk |= 0x20;
if (!dev->mute)
xclk |= 0x80;
ret = em28xx_write_reg_bits(dev, XCLK_REG, xclk, 0xa7);
if (ret < 0) if (ret < 0)
return ret; return ret;
msleep(10);
/* Selects the proper audio input */ /* Selects the proper audio input */
ret = em28xx_set_audio_source(dev); ret = em28xx_set_audio_source(dev);

7
drivers/media/video/em28xx/em28xx-video.c
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@ -125,10 +125,6 @@ static int em28xx_config(struct em28xx *dev)
dev->mute = 1; /* maybe not the right place... */ dev->mute = 1; /* maybe not the right place... */
dev->volume = 0x1f; dev->volume = 0x1f;
/* Init XCLK_REG, audio muted */
dev->em28xx_write_regs(dev, XCLK_REG, "\x87", 1);
em28xx_audio_analog_set(dev);
em28xx_outfmt_set_yuv422(dev); em28xx_outfmt_set_yuv422(dev);
em28xx_colorlevels_set_default(dev); em28xx_colorlevels_set_default(dev);
em28xx_compression_disable(dev); em28xx_compression_disable(dev);
@ -1688,6 +1684,9 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
/* Do board specific init and eeprom reading */ /* Do board specific init and eeprom reading */
em28xx_card_setup(dev); em28xx_card_setup(dev);
/* Configure audio */
em28xx_audio_analog_set(dev);
/* configure the device */ /* configure the device */
em28xx_config_i2c(dev); em28xx_config_i2c(dev);

3
drivers/media/video/em28xx/em28xx.h
View File

@ -184,6 +184,8 @@ struct em28xx_board {
unsigned int has_tuner:1; unsigned int has_tuner:1;
unsigned int has_msp34xx:1; unsigned int has_msp34xx:1;
unsigned int mts_firmware:1; unsigned int mts_firmware:1;
unsigned int has_12mhz_i2s:1;
unsigned int analog_gpio; unsigned int analog_gpio;
enum em28xx_decoder decoder; enum em28xx_decoder decoder;
@ -247,6 +249,7 @@ struct em28xx {
unsigned int has_tda9887:1; unsigned int has_tda9887:1;
unsigned int stream_on:1; /* Locks streams */ unsigned int stream_on:1; /* Locks streams */
unsigned int has_audio_class:1; unsigned int has_audio_class:1;
unsigned int has_12mhz_i2s:1;
int video_inputs; /* number of video inputs */ int video_inputs; /* number of video inputs */
struct list_head devlist; struct list_head devlist;