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V4L/DVB (12244): em28xx: adjust vinmode/vinctl based on the stream input format

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Depending on the video input format, vinmode/vinctl needs adjustments.
For TV, this is not relevant, since the supported decoders output data
at the same format. However, webcam sensors may have different formats,
so, this needs to be adjusted based on the device.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2009-07-14 12:33:25 -03:00
parent d36bb4e772
commit 579d315218
3 changed files with 17 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/media/video/em28xx/em28xx-cards.c
View File

@ -1735,6 +1735,11 @@ static int em28xx_hint_sensor(struct em28xx *dev)
dev->sensor_xres = 640;
dev->sensor_yres = 480;
dev->sensor_xtal = 6300000;
/* probably means GRGB 16 bit bayer */
dev->vinmode = 0x0d;
dev->vinctl = 0x00;
break;
default:
printk("Unknown Micron Sensor 0x%04x\n", be16_to_cpu(version));
@ -2414,6 +2419,12 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
return errCode;
}
/*
* Default format, used for tvp5150 or saa711x output formats
*/
dev->vinmode = 0x10;
dev->vinctl = 0x11;
/*
* If the device can be a webcam, seek for a sensor.
* If sensor is not found, then it isn't a webcam.

17
drivers/media/video/em28xx/em28xx-core.c
View File

@ -648,28 +648,17 @@ int em28xx_capture_start(struct em28xx *dev, int start)
int em28xx_set_outfmt(struct em28xx *dev)
{
int ret;
int vinmode, vinctl, outfmt;
outfmt = dev->format->reg;
if (dev->board.is_webcam) {
vinmode = 0x0d;
vinctl = 0x00;
} else {
vinmode = 0x10;
vinctl = 0x11;
}
ret = em28xx_write_reg_bits(dev, EM28XX_R27_OUTFMT,
outfmt | 0x20, 0xff);
dev->format->reg | 0x20, 0xff);
if (ret < 0)
return ret;
ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, vinmode);
ret = em28xx_write_reg(dev, EM28XX_R10_VINMODE, dev->vinmode);
if (ret < 0)
return ret;
return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, vinctl);
return em28xx_write_reg(dev, EM28XX_R11_VINCTRL, dev->vinctl);
}
static int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax,

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

@ -483,6 +483,9 @@ struct em28xx {
int sensor_xres, sensor_yres;
int sensor_xtal;
/* Vinmode/Vinctl used at the driver */
int vinmode, vinctl;
unsigned int stream_on:1; /* Locks streams */
unsigned int has_audio_class:1;
unsigned int has_alsa_audio:1;