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authorDevin Heitmueller <dheitmueller@kernellabs.com>2009-08-31 23:23:03 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-09-18 23:47:40 -0300
commit206313db83641022c5ee213ac5f619973a9b427b (patch)
treea787103836bbbba90e06770793c9eeb97986c76c /drivers/media/video
parentdf72f32ae2eebb1d8cd3994ec7b54344f4164c68 (diff)
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V4L/DVB (12740): em28xx: better describe vinctrl registers
Properly document the video input control register, in preparation for the addition of VBI support. Note this patch makes no functional changes. Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
-rw-r--r--drivers/media/video/em28xx/em28xx-cards.c3
-rw-r--r--drivers/media/video/em28xx/em28xx-reg.h12
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c
index 7e3c782..cc80723 100644
--- a/drivers/media/video/em28xx/em28xx-cards.c
+++ b/drivers/media/video/em28xx/em28xx-cards.c
@@ -2570,7 +2570,8 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
* Default format, used for tvp5150 or saa711x output formats
*/
dev->vinmode = 0x10;
- dev->vinctl = 0x11;
+ dev->vinctl = EM28XX_VINCTRL_INTERLACED |
+ EM28XX_VINCTRL_CCIR656_ENABLE;
/* Do board specific init and eeprom reading */
em28xx_card_setup(dev);
diff --git a/drivers/media/video/em28xx/em28xx-reg.h b/drivers/media/video/em28xx/em28xx-reg.h
index 6bf84bd..3bf69f9 100644
--- a/drivers/media/video/em28xx/em28xx-reg.h
+++ b/drivers/media/video/em28xx/em28xx-reg.h
@@ -86,7 +86,19 @@
#define EM28XX_XCLK_FREQUENCY_24MHZ 0x0b
#define EM28XX_R10_VINMODE 0x10
+
#define EM28XX_R11_VINCTRL 0x11
+
+/* em28xx Video Input Control Register 0x11 */
+#define EM28XX_VINCTRL_VBI_SLICED 0x80
+#define EM28XX_VINCTRL_VBI_RAW 0x40
+#define EM28XX_VINCTRL_VOUT_MODE_IN 0x20 /* HREF,VREF,VACT in output */
+#define EM28XX_VINCTRL_CCIR656_ENABLE 0x10
+#define EM28XX_VINCTRL_VBI_16BIT_RAW 0x08 /* otherwise 8-bit raw */
+#define EM28XX_VINCTRL_FID_ON_HREF 0x04
+#define EM28XX_VINCTRL_DUAL_EDGE_STROBE 0x02
+#define EM28XX_VINCTRL_INTERLACED 0x01
+
#define EM28XX_R12_VINENABLE 0x12 /* */
#define EM28XX_R14_GAMMA 0x14