aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/ivtv/ivtv-vbi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-vbi.c')
-rw-r--r--drivers/media/video/ivtv/ivtv-vbi.c64
1 files changed, 62 insertions, 2 deletions
diff --git a/drivers/media/video/ivtv/ivtv-vbi.c b/drivers/media/video/ivtv/ivtv-vbi.c
index a58c833c2b0..5d8a40f3d2b 100644
--- a/drivers/media/video/ivtv/ivtv-vbi.c
+++ b/drivers/media/video/ivtv/ivtv-vbi.c
@@ -18,10 +18,70 @@
*/
#include "ivtv-driver.h"
-#include "ivtv-video.h"
-#include "ivtv-vbi.h"
+#include "ivtv-i2c.h"
#include "ivtv-ioctl.h"
#include "ivtv-queue.h"
+#include "ivtv-vbi.h"
+
+static void ivtv_set_vps(struct ivtv *itv, int enabled, u8 vps1, u8 vps2, u8 vps3,
+ u8 vps4, u8 vps5)
+{
+ struct v4l2_sliced_vbi_data data;
+
+ if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
+ return;
+ data.id = V4L2_SLICED_VPS;
+ data.field = 0;
+ data.line = enabled ? 16 : 0;
+ data.data[4] = vps1;
+ data.data[10] = vps2;
+ data.data[11] = vps3;
+ data.data[12] = vps4;
+ data.data[13] = vps5;
+ ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
+}
+
+static void ivtv_set_cc(struct ivtv *itv, int mode, u8 cc1, u8 cc2, u8 cc3, u8 cc4)
+{
+ struct v4l2_sliced_vbi_data data;
+
+ if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
+ return;
+ data.id = V4L2_SLICED_CAPTION_525;
+ data.field = 0;
+ data.line = (mode & 1) ? 21 : 0;
+ data.data[0] = cc1;
+ data.data[1] = cc2;
+ ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
+ data.field = 1;
+ data.line = (mode & 2) ? 21 : 0;
+ data.data[0] = cc3;
+ data.data[1] = cc4;
+ ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
+}
+
+static void ivtv_set_wss(struct ivtv *itv, int enabled, int mode)
+{
+ struct v4l2_sliced_vbi_data data;
+
+ if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
+ return;
+ /* When using a 50 Hz system, always turn on the
+ wide screen signal with 4x3 ratio as the default.
+ Turning this signal on and off can confuse certain
+ TVs. As far as I can tell there is no reason not to
+ transmit this signal. */
+ if ((itv->std & V4L2_STD_625_50) && !enabled) {
+ enabled = 1;
+ mode = 0x08; /* 4x3 full format */
+ }
+ data.id = V4L2_SLICED_WSS_625;
+ data.field = 0;
+ data.line = enabled ? 23 : 0;
+ data.data[0] = mode & 0xff;
+ data.data[1] = (mode >> 8) & 0xff;
+ ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
+}
static int odd_parity(u8 c)
{