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media: usbtv: Add SECAM support 

Add support for the SECAM norm, using the "AVSECAM" decoder configuration
sequence found in Windows driver's .INF file.

For reference, the "AVSECAM" sequence in the .INF file is:
0x04,0x73,0xDC,0x72,0xA2,0x90,0x35,0x01,0x30,0x04,0x08,0x2D,0x28,0x08,
0x02,0x69,0x16,0x35,0x21,0x16,0x36

Signed-off-by: Hugo Grostabussiat <bonstra@bonstra.fr.eu.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hugo Grostabussiat 2018-04-08 17:11:57 -04:00 committed by Mauro Carvalho Chehab
parent 5c909be048
commit c41e20d9cb
2 changed files with 38 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/media/usb/usbtv/usbtv-video.c
View File

@ -57,6 +57,11 @@ static struct usbtv_norm_params norm_params[] = {
.norm = V4L2_STD_PAL,
.cap_width = 720,
.cap_height = 576,
},
{
.norm = V4L2_STD_SECAM,
.cap_width = 720,
.cap_height = 576,
}
};
@ -187,6 +192,34 @@ static int usbtv_select_norm(struct usbtv *usbtv, v4l2_std_id norm)
{ USBTV_BASE + 0x024f, 0x0002 },
};
static const u16 secam[][2] = {
/* "AVSECAM" tuning sequence from .INF file */
{ USBTV_BASE + 0x0003, 0x0004 },
{ USBTV_BASE + 0x001a, 0x0073 },
{ USBTV_BASE + 0x0100, 0x00dc },
{ USBTV_BASE + 0x010e, 0x0072 },
{ USBTV_BASE + 0x010f, 0x00a2 },
{ USBTV_BASE + 0x0112, 0x0090 },
{ USBTV_BASE + 0x0115, 0x0035 },
{ USBTV_BASE + 0x0117, 0x0001 },
{ USBTV_BASE + 0x0118, 0x0030 },
{ USBTV_BASE + 0x012d, 0x0004 },
{ USBTV_BASE + 0x012f, 0x0008 },
{ USBTV_BASE + 0x0220, 0x002d },
{ USBTV_BASE + 0x0225, 0x0028 },
{ USBTV_BASE + 0x024e, 0x0008 },
{ USBTV_BASE + 0x024f, 0x0002 },
{ USBTV_BASE + 0x0254, 0x0069 },
{ USBTV_BASE + 0x025a, 0x0016 },
{ USBTV_BASE + 0x025b, 0x0035 },
{ USBTV_BASE + 0x0263, 0x0021 },
{ USBTV_BASE + 0x0266, 0x0016 },
{ USBTV_BASE + 0x0267, 0x0036 },
/* Epilog */
{ USBTV_BASE + 0x024e, 0x0002 },
{ USBTV_BASE + 0x024f, 0x0002 },
};
ret = usbtv_configure_for_norm(usbtv, norm);
if (!ret) {
@ -194,6 +227,8 @@ static int usbtv_select_norm(struct usbtv *usbtv, v4l2_std_id norm)
ret = usbtv_set_regs(usbtv, ntsc, ARRAY_SIZE(ntsc));
else if (norm & V4L2_STD_PAL)
ret = usbtv_set_regs(usbtv, pal, ARRAY_SIZE(pal));
else if (norm & V4L2_STD_SECAM)
ret = usbtv_set_regs(usbtv, secam, ARRAY_SIZE(secam));
}
return ret;
@ -605,7 +640,8 @@ static int usbtv_s_std(struct file *file, void *priv, v4l2_std_id norm)
int ret = -EINVAL;
struct usbtv *usbtv = video_drvdata(file);
if ((norm & V4L2_STD_525_60) || (norm & V4L2_STD_PAL))
if ((norm & V4L2_STD_525_60) || (norm & V4L2_STD_PAL) ||
(norm & V4L2_STD_SECAM))
ret = usbtv_select_norm(usbtv, norm);
return ret;

2
drivers/media/usb/usbtv/usbtv.h
View File

@ -68,7 +68,7 @@
#define USBTV_ODD(chunk) ((be32_to_cpu(chunk[0]) & 0x0000f000) >> 15)
#define USBTV_CHUNK_NO(chunk) (be32_to_cpu(chunk[0]) & 0x00000fff)
#define USBTV_TV_STD (V4L2_STD_525_60 | V4L2_STD_PAL)
#define USBTV_TV_STD (V4L2_STD_525_60 | V4L2_STD_PAL | V4L2_STD_SECAM)
/* parameters for supported TV norms */
struct usbtv_norm_params {