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V4L/DVB (11851): patch: s2255drv: adding V4L2_MODE_HIGHQUALITY 

Adding V4L2_MODE_HIGHQUALITY feature.

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Dean Anderson 2009-05-15 14:32:04 -03:00 committed by Mauro Carvalho Chehab
parent 849a3aba2d
commit 7d8535329c
1 changed files with 45 additions and 3 deletions
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48
drivers/media/video/s2255drv.c
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@ -109,6 +109,8 @@
#define SCALE_4CIFS 1 /* 640x480(NTSC) or 704x576(PAL) */
#define SCALE_2CIFS 2 /* 640x240(NTSC) or 704x288(PAL) */
#define SCALE_1CIFS 3 /* 320x240(NTSC) or 352x288(PAL) */
/* SCALE_4CIFSI is the 2 fields interpolated into one */
#define SCALE_4CIFSI 4 /* 640x480(NTSC) or 704x576(PAL) high quality */
#define COLOR_YUVPL 1 /* YUV planar */
#define COLOR_YUVPK 2 /* YUV packed */
@ -238,6 +240,8 @@ struct s2255_dev {
struct s2255_mode mode[MAX_CHANNELS];
/* jpeg compression */
struct v4l2_jpegcompression jc[MAX_CHANNELS];
/* capture parameters (for high quality mode full size) */
struct v4l2_captureparm cap_parm[MAX_CHANNELS];
const struct s2255_fmt *cur_fmt[MAX_CHANNELS];
int cur_frame[MAX_CHANNELS];
int last_frame[MAX_CHANNELS];
@ -1020,9 +1024,16 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
fh->type = f->type;
norm = norm_minw(fh->dev->vdev[fh->channel]);
if (fh->width > norm_minw(fh->dev->vdev[fh->channel])) {
if (fh->height > norm_minh(fh->dev->vdev[fh->channel]))
fh->mode.scale = SCALE_4CIFS;
else
if (fh->height > norm_minh(fh->dev->vdev[fh->channel])) {
if (fh->dev->cap_parm[fh->channel].capturemode &
V4L2_MODE_HIGHQUALITY) {
fh->mode.scale = SCALE_4CIFSI;
dprintk(2, "scale 4CIFSI\n");
} else {
fh->mode.scale = SCALE_4CIFS;
dprintk(2, "scale 4CIFS\n");
}
} else
fh->mode.scale = SCALE_2CIFS;
} else {
@ -1123,6 +1134,7 @@ static u32 get_transfer_size(struct s2255_mode *mode)
if (mode->format == FORMAT_NTSC) {
switch (mode->scale) {
case SCALE_4CIFS:
case SCALE_4CIFSI:
linesPerFrame = NUM_LINES_4CIFS_NTSC * 2;
pixelsPerLine = LINE_SZ_4CIFS_NTSC;
break;
@ -1140,6 +1152,7 @@ static u32 get_transfer_size(struct s2255_mode *mode)
} else if (mode->format == FORMAT_PAL) {
switch (mode->scale) {
case SCALE_4CIFS:
case SCALE_4CIFSI:
linesPerFrame = NUM_LINES_4CIFS_PAL * 2;
pixelsPerLine = LINE_SZ_4CIFS_PAL;
break;
@ -1495,6 +1508,33 @@ static int vidioc_s_jpegcomp(struct file *file, void *priv,
dprintk(2, "setting jpeg quality %d\n", jc->quality);
return 0;
}
static int vidioc_g_parm(struct file *file, void *priv,
struct v4l2_streamparm *sp)
{
struct s2255_fh *fh = priv;
struct s2255_dev *dev = fh->dev;
if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
sp->parm.capture.capturemode = dev->cap_parm[fh->channel].capturemode;
dprintk(2, "getting parm %d\n", sp->parm.capture.capturemode);
return 0;
}
static int vidioc_s_parm(struct file *file, void *priv,
struct v4l2_streamparm *sp)
{
struct s2255_fh *fh = priv;
struct s2255_dev *dev = fh->dev;
if (sp->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
dev->cap_parm[fh->channel].capturemode = sp->parm.capture.capturemode;
dprintk(2, "setting param capture mode %d\n",
sp->parm.capture.capturemode);
return 0;
}
static int s2255_open(struct file *file)
{
int minor = video_devdata(file)->minor;
@ -1786,6 +1826,8 @@ static const struct v4l2_ioctl_ops s2255_ioctl_ops = {
#endif
.vidioc_s_jpegcomp = vidioc_s_jpegcomp,
.vidioc_g_jpegcomp = vidioc_g_jpegcomp,
.vidioc_s_parm = vidioc_s_parm,
.vidioc_g_parm = vidioc_g_parm,
};
static struct video_device template = {