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V4L/DVB (12245): em28xx: add support for mt9m001 webcams 

Thanks to Wally <wally@voosen.eu> for bringing the issue and helping
with the tests.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
hifive-unleashed-5.1
Mauro Carvalho Chehab 2009-07-14 21:08:22 -03:00
parent 579d315218
commit b80fd2d811
2 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/media/video/em28xx/em28xx-cards.c
View File

@ -211,6 +211,7 @@ struct em28xx_board em28xx_boards[] = {
.type = EM28XX_VMUX_COMPOSITE1,
.vmux = 0,
.amux = EM28XX_AMUX_VIDEO,
.gpio = silvercrest_reg_seq,
} },
},
[EM2800_BOARD_UNKNOWN] = {
@ -1706,6 +1707,32 @@ static inline void em28xx_set_model(struct em28xx *dev)
EM28XX_I2C_FREQ_100_KHZ;
}
/* FIXME: Should be replaced by a proper mt9m001 driver */
static int em28xx_initialize_mt9m001(struct em28xx *dev)
{
int i;
unsigned char regs[][3] = {
{ 0x0d, 0x00, 0x01, },
{ 0x0d, 0x00, 0x00, },
{ 0x04, 0x05, 0x00, }, /* hres = 1280 */
{ 0x03, 0x04, 0x00, }, /* vres = 1024 */
{ 0x20, 0x11, 0x00, },
{ 0x06, 0x00, 0x10, },
{ 0x2b, 0x00, 0x24, },
{ 0x2e, 0x00, 0x24, },
{ 0x35, 0x00, 0x24, },
{ 0x2d, 0x00, 0x20, },
{ 0x2c, 0x00, 0x20, },
{ 0x09, 0x0a, 0xd4, },
{ 0x35, 0x00, 0x57, },
};
for (i = 0; i < ARRAY_SIZE(regs); i++)
i2c_master_send(&dev->i2c_client, &regs[i][0], 3);
return 0;
}
/* HINT method: webcam I2C chips
*
* This method work for webcams with Micron sensors
@ -1740,6 +1767,19 @@ static int em28xx_hint_sensor(struct em28xx *dev)
dev->vinmode = 0x0d;
dev->vinctl = 0x00;
break;
case 0x8431:
dev->model = EM2750_BOARD_UNKNOWN;
sensor_name = "mt9m001";
dev->em28xx_sensor = EM28XX_MT9M001;
em28xx_initialize_mt9m001(dev);
dev->sensor_xres = 1280;
dev->sensor_yres = 1024;
/* probably means BGGR 16 bit bayer */
dev->vinmode = 0x0c;
dev->vinctl = 0x00;
break;
default:
printk("Unknown Micron Sensor 0x%04x\n", be16_to_cpu(version));
@ -2275,6 +2315,7 @@ void em28xx_card_setup(struct em28xx *dev)
v4l2_subdev_call(sd, core, s_config, 0, &dev->sensor_xtal);
}
if (dev->board.adecoder == EM28XX_TVAUDIO)
v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
"tvaudio", "tvaudio", dev->board.tvaudio_addr);

1
drivers/media/video/em28xx/em28xx.h
View File

@ -366,6 +366,7 @@ enum em28xx_decoder {
enum em28xx_sensor {
EM28XX_NOSENSOR = 0,
EM28XX_MT9V011,
EM28XX_MT9M001,
};
enum em28xx_adecoder {