diff options
| author | Frank Schaefer <fschaefer.oss@googlemail.com> | 2017-04-15 07:05:03 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2017-04-17 17:32:44 -0300 |
| commit | a7b8e9a5b3224883c2ab996717d6b808c46c81b3 (patch) | |
| tree | 6a864ba5dec1ed95df2049a6a83d2fd61e33a168 /drivers/media/usb/em28xx/em28xx-reg.h | |
| parent | 85316cf8da9e808f28c81343a050f489ac03e20e (diff) | |
| download | linux-a7b8e9a5b3224883c2ab996717d6b808c46c81b3.tar.gz linux-a7b8e9a5b3224883c2ab996717d6b808c46c81b3.tar.xz | |
[media] em28xx: shed some light on video input formats
CbYCrY has been identified by looking into the tvp5150 driver and the
saa7115 datasheet.
YUV formats have been verified with em2765 + ov2640 (VAD Laplace webcam).
RGB8 formats have been verified with em2710/em2820 + mt9v011 (Silvercrest
webcam 1.3mpix).
I also did some cross-checking with these two camera devices and 0x08-0x0b
are at least 16 bits per pixel formats on em2710/em2820, too, and
0x0c-0x0f are at least 8 bits per pixel formats on em2765, too.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-reg.h')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx-reg.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-reg.h b/drivers/media/usb/em28xx/em28xx-reg.h index afe7a66d7dc8..747525ca7ed5 100644 --- a/drivers/media/usb/em28xx/em28xx-reg.h +++ b/drivers/media/usb/em28xx/em28xx-reg.h @@ -93,6 +93,24 @@ #define EM28XX_XCLK_FREQUENCY_24MHZ 0x0b #define EM28XX_R10_VINMODE 0x10 + /* used by all non-camera devices: */ +#define EM28XX_VINMODE_YUV422_CbYCrY 0x10 + /* used by camera devices: */ +#define EM28XX_VINMODE_YUV422_YUYV 0x08 +#define EM28XX_VINMODE_YUV422_YVYU 0x09 +#define EM28XX_VINMODE_YUV422_UYVY 0x0a +#define EM28XX_VINMODE_YUV422_VYUY 0x0b +#define EM28XX_VINMODE_RGB8_BGGR 0x0c +#define EM28XX_VINMODE_RGB8_GRBG 0x0d +#define EM28XX_VINMODE_RGB8_GBRG 0x0e +#define EM28XX_VINMODE_RGB8_RGGB 0x0f + /* + * apparently: + * bit 0: swap component 1+2 with 3+4 + * => e.g.: YUYV => YVYU, BGGR => GRBG + * bit 1: swap component 1 with 2 and 3 with 4 + * => e.g.: YUYV => UYVY, BGGR => GBRG + */ #define EM28XX_R11_VINCTRL 0x11 |