Add WSS (wide screen signalling) module parameters

From: Oliver Endriss <o.endriss@gmx.de>

Add wss_cfg_4_3 and wss_cfg_16_9 configuration options.
Firmware 2623 or later required.

Both parameters are bit masks:
- bit 15: disable WSS
- bit 14: send short WSS burst, then turn off WSS
- bit 13..0: WSS bits as specified by the standard

These parameters are useful if you own a broken tv set which
does not handle wss correctly.

Default settings:
- wss_cfg_4_3: 0x4008
- wss_cfg_16_9: 0x0007
These should work with most devices.

Signed-off-by: Oliver Endriss <o.endriss@gmx.de>

1 files changed, 4 insertions, 7 deletions

diff --git a/linux/drivers/media/dvb/ttpci/av7110_v4l.c b/linux/drivers/media/dvb/ttpci/av7110_v4l.c
index 94cf38c7e..2f23ceab8 100644
--- a/linux/drivers/media/dvb/ttpci/av7110_v4l.c
+++ b/linux/drivers/media/dvb/ttpci/av7110_v4l.c
@@ -579,14 +579,11 @@ static ssize_t av7110_vbi_write(struct file *file, const char __user *data, size
 		return -EFAULT;
 	if ((d.id != 0 && d.id != V4L2_SLICED_WSS_625) || d.field != 0 || d.line != 23)
 		return -EINVAL;
-	if (d.id) {
+	if (d.id)
 		av7110->wssData = ((d.data[1] << 8) & 0x3f00) | d.data[0];
-		rc = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetWSSConfig,
-				   2, 1, av7110->wssData);
-	} else {
-		av7110->wssData = 0;
-		rc = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetWSSConfig, 1, 0);
-	}
+	else
+		av7110->wssData = 0x8000;
+	rc = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetWSSConfig, 2, 1, av7110->wssData);
 	return (rc < 0) ? rc : count;
 }