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authorHans Verkuil <hverkuil@xs4all.nl>2010-05-08 18:53:44 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2010-10-21 01:04:41 -0200
commit1e426228839f93c1a61c215b57557f1eb4f79a2d (patch)
tree9cbf21433bd4019346d4111be24e326a66dc7b55 /drivers/media/video/cafe_ccic.c
parent959f3bdadfefb59e27c53c2e9ab13192119b0e3c (diff)
V4L/DVB: cafe_ccic: convert to the mediabus API
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cafe_ccic.c')
-rw-r--r--drivers/media/video/cafe_ccic.c87
1 files changed, 74 insertions, 13 deletions
diff --git a/drivers/media/video/cafe_ccic.c b/drivers/media/video/cafe_ccic.c
index be35e6965829..2ffb6df955b3 100644
--- a/drivers/media/video/cafe_ccic.c
+++ b/drivers/media/video/cafe_ccic.c
@@ -180,6 +180,7 @@ struct cafe_camera
/* Current operating parameters */
u32 sensor_type; /* Currently ov7670 only */
struct v4l2_pix_format pix_format;
+ enum v4l2_mbus_pixelcode mbus_code;
/* Locks */
struct mutex s_mutex; /* Access to this structure */
@@ -207,6 +208,49 @@ static inline struct cafe_camera *to_cam(struct v4l2_device *dev)
return container_of(dev, struct cafe_camera, v4l2_dev);
}
+static struct cafe_format_struct {
+ __u8 *desc;
+ __u32 pixelformat;
+ int bpp; /* Bytes per pixel */
+ enum v4l2_mbus_pixelcode mbus_code;
+} cafe_formats[] = {
+ {
+ .desc = "YUYV 4:2:2",
+ .pixelformat = V4L2_PIX_FMT_YUYV,
+ .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
+ .bpp = 2,
+ },
+ {
+ .desc = "RGB 444",
+ .pixelformat = V4L2_PIX_FMT_RGB444,
+ .mbus_code = V4L2_MBUS_FMT_RGB444_2X8_PADHI_LE,
+ .bpp = 2,
+ },
+ {
+ .desc = "RGB 565",
+ .pixelformat = V4L2_PIX_FMT_RGB565,
+ .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_LE,
+ .bpp = 2,
+ },
+ {
+ .desc = "Raw RGB Bayer",
+ .pixelformat = V4L2_PIX_FMT_SBGGR8,
+ .mbus_code = V4L2_MBUS_FMT_SBGGR8_1X8,
+ .bpp = 1
+ },
+};
+#define N_CAFE_FMTS ARRAY_SIZE(cafe_formats)
+
+static struct cafe_format_struct *cafe_find_format(u32 pixelformat)
+{
+ unsigned i;
+
+ for (i = 0; i < N_CAFE_FMTS; i++)
+ if (cafe_formats[i].pixelformat == pixelformat)
+ return cafe_formats + i;
+ /* Not found? Then return the first format. */
+ return cafe_formats;
+}
/*
* Start over with DMA buffers - dev_lock needed.
@@ -812,15 +856,15 @@ static int cafe_cam_set_flip(struct cafe_camera *cam)
static int cafe_cam_configure(struct cafe_camera *cam)
{
- struct v4l2_format fmt;
+ struct v4l2_mbus_framefmt mbus_fmt;
int ret;
if (cam->state != S_IDLE)
return -EINVAL;
- fmt.fmt.pix = cam->pix_format;
+ v4l2_fill_mbus_format(&mbus_fmt, &cam->pix_format, cam->mbus_code);
ret = sensor_call(cam, core, init, 0);
if (ret == 0)
- ret = sensor_call(cam, video, s_fmt, &fmt);
+ ret = sensor_call(cam, video, s_mbus_fmt, &mbus_fmt);
/*
* OV7670 does weird things if flip is set *before* format...
*/
@@ -1481,7 +1525,7 @@ static int cafe_vidioc_querycap(struct file *file, void *priv,
/*
* The default format we use until somebody says otherwise.
*/
-static struct v4l2_pix_format cafe_def_pix_format = {
+static const struct v4l2_pix_format cafe_def_pix_format = {
.width = VGA_WIDTH,
.height = VGA_HEIGHT,
.pixelformat = V4L2_PIX_FMT_YUYV,
@@ -1490,28 +1534,38 @@ static struct v4l2_pix_format cafe_def_pix_format = {
.sizeimage = VGA_WIDTH*VGA_HEIGHT*2,
};
+static const enum v4l2_mbus_pixelcode cafe_def_mbus_code =
+ V4L2_MBUS_FMT_YUYV8_2X8;
+
static int cafe_vidioc_enum_fmt_vid_cap(struct file *filp,
void *priv, struct v4l2_fmtdesc *fmt)
{
- struct cafe_camera *cam = priv;
- int ret;
-
- mutex_lock(&cam->s_mutex);
- ret = sensor_call(cam, video, enum_fmt, fmt);
- mutex_unlock(&cam->s_mutex);
- return ret;
+ if (fmt->index >= N_CAFE_FMTS)
+ return -EINVAL;
+ strlcpy(fmt->description, cafe_formats[fmt->index].desc,
+ sizeof(fmt->description));
+ fmt->pixelformat = cafe_formats[fmt->index].pixelformat;
+ return 0;
}
-
static int cafe_vidioc_try_fmt_vid_cap(struct file *filp, void *priv,
struct v4l2_format *fmt)
{
struct cafe_camera *cam = priv;
+ struct cafe_format_struct *f;
+ struct v4l2_pix_format *pix = &fmt->fmt.pix;
+ struct v4l2_mbus_framefmt mbus_fmt;
int ret;
+ f = cafe_find_format(pix->pixelformat);
+ pix->pixelformat = f->pixelformat;
+ v4l2_fill_mbus_format(&mbus_fmt, pix, f->mbus_code);
mutex_lock(&cam->s_mutex);
- ret = sensor_call(cam, video, try_fmt, fmt);
+ ret = sensor_call(cam, video, try_mbus_fmt, &mbus_fmt);
mutex_unlock(&cam->s_mutex);
+ v4l2_fill_pix_format(pix, &mbus_fmt);
+ pix->bytesperline = pix->width * f->bpp;
+ pix->sizeimage = pix->height * pix->bytesperline;
return ret;
}
@@ -1519,6 +1573,7 @@ static int cafe_vidioc_s_fmt_vid_cap(struct file *filp, void *priv,
struct v4l2_format *fmt)
{
struct cafe_camera *cam = priv;
+ struct cafe_format_struct *f;
int ret;
/*
@@ -1527,6 +1582,9 @@ static int cafe_vidioc_s_fmt_vid_cap(struct file *filp, void *priv,
*/
if (cam->state != S_IDLE || cam->n_sbufs > 0)
return -EBUSY;
+
+ f = cafe_find_format(fmt->fmt.pix.pixelformat);
+
/*
* See if the formatting works in principle.
*/
@@ -1539,6 +1597,8 @@ static int cafe_vidioc_s_fmt_vid_cap(struct file *filp, void *priv,
*/
mutex_lock(&cam->s_mutex);
cam->pix_format = fmt->fmt.pix;
+ cam->mbus_code = f->mbus_code;
+
/*
* Make sure we have appropriate DMA buffers.
*/
@@ -1915,6 +1975,7 @@ static int cafe_pci_probe(struct pci_dev *pdev,
init_waitqueue_head(&cam->iowait);
cam->pdev = pdev;
cam->pix_format = cafe_def_pix_format;
+ cam->mbus_code = cafe_def_mbus_code;
INIT_LIST_HEAD(&cam->dev_list);
INIT_LIST_HEAD(&cam->sb_avail);
INIT_LIST_HEAD(&cam->sb_full);

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