V4L/DVB (12171): em28xx: fix webcam usage with different output formats

Discovered the bug that were limiting the output format to just RGB565.
Now, it is possible to output image at Bayer format (the original one,
as generated by Silvercrest sensor, and two others), and also on YUY.

Adds Bayer formats also to the driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/em28xx/em28xx-core.c b/drivers/media/video/em28xx/em28xx-core.c
index dda2721ee5b082fbeb4ff9d08fc5bc9798e167da..079ab4d563a62c4a41b6db6ff9d3df70a03a4e26 100644 (file)
--- a/drivers/media/video/em28xx/em28xx-core.c
+++ b/drivers/media/video/em28xx/em28xx-core.c
@@ -655,7 +655,6 @@ int em28xx_set_outfmt(struct em28xx *dev)
        if (dev->board.is_27xx) {
                vinmode = 0x0d;
                vinctl  = 0x00;
-               outfmt  = 0x24;
        } else {
                vinmode = 0x10;
                vinctl  = 0x11;

diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 702fe8d6742e5d5b5d9102053127ca64d0e01d6a..14316c912179ab32b6b2ad456f10c83b66729d22 100644 (file)
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -90,15 +90,35 @@ MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
 /* supported video standards */
 static struct em28xx_fmt format[] = {
        {
-               .name     = "16bpp YUY2, 4:2:2, packed",
+               .name     = "16 bpp YUY2, 4:2:2, packed",
                .fourcc   = V4L2_PIX_FMT_YUYV,
                .depth    = 16,
                .reg      = EM28XX_OUTFMT_YUV422_Y0UY1V,
        }, {
-               .name     = "16 bpp RGB, le",
+               .name     = "16 bpp RGB 565, LE",
                .fourcc   = V4L2_PIX_FMT_RGB565,
                .depth    = 16,
-               .reg      = EM28XX_OUTFMT_YUV211,
+               .reg      = EM28XX_OUTFMT_RGB_16_656,
+       }, {
+               .name     = "8 bpp Bayer BGBG..GRGR",
+               .fourcc   = V4L2_PIX_FMT_SBGGR8,
+               .depth    = 8,
+               .reg      = EM28XX_OUTFMT_RGB_8_BGBG,
+       }, {
+               .name     = "8 bpp Bayer GRGR..BGBG",
+               .fourcc   = V4L2_PIX_FMT_SGRBG8,
+               .depth    = 8,
+               .reg      = EM28XX_OUTFMT_RGB_8_GRGR,
+       }, {
+               .name     = "8 bpp Bayer GBGB..RGRG",
+               .fourcc   = V4L2_PIX_FMT_SGBRG8,
+               .depth    = 8,
+               .reg      = EM28XX_OUTFMT_RGB_8_GBGB,
+       }, {
+               .name     = "12 bpp YUV411",
+               .fourcc   = V4L2_PIX_FMT_YUV411P,
+               .depth    = 12,
+               .reg      = EM28XX_OUTFMT_YUV411,
        },
 };
 
@@ -699,10 +719,6 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
        unsigned int          hscale, vscale;
        struct em28xx_fmt     *fmt;
 
-       /* FIXME: This is the only supported fmt */
-       if (dev->board.is_27xx)
-               f->fmt.pix.pixelformat = V4L2_PIX_FMT_RGB565;
-
        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
        if (!fmt) {
                em28xx_videodbg("Fourcc format (%08x) invalid.\n",
@@ -753,7 +769,6 @@ static int em28xx_set_video_format(struct em28xx *dev, unsigned int fourcc,
 
        /* FIXME: This is the only supported fmt */
        if (dev->board.is_27xx) {
-               fourcc = V4L2_PIX_FMT_RGB565;
                width  = 640;
                height = 480;
        }
@@ -1387,24 +1402,9 @@ static int vidioc_querycap(struct file *file, void  *priv,
 static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
                                        struct v4l2_fmtdesc *f)
 {
-       struct em28xx_fh      *fh  = priv;
-       struct em28xx         *dev = fh->dev;
-
        if (unlikely(f->index >= ARRAY_SIZE(format)))
                return -EINVAL;
 
-       if (dev->board.is_27xx) {
-               struct em28xx_fmt *fmt;
-               if (f->index)
-                       return -EINVAL;
-
-               f->pixelformat = V4L2_PIX_FMT_RGB565;
-               fmt = format_by_fourcc(f->pixelformat);
-               strlcpy(f->description, fmt->name, sizeof(f->description));
-
-               return 0;
-       }
-
        strlcpy(f->description, format[f->index].name, sizeof(f->description));
        f->pixelformat = format[f->index].fourcc;