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>

1 files changed, 45 insertions, 3 deletions

diff --git a/drivers/media/video/s2255drv.c b/drivers/media/video/s2255drv.c
index 90e1dbc1aa89..f08939c1f164 100644
--- a/drivers/media/video/s2255drv.c
+++ b/drivers/media/video/s2255drv.c
@@ -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 = {