diff options
Diffstat (limited to 'drivers/media/video/cafe_ccic.c')
| -rw-r--r-- | drivers/media/video/cafe_ccic.c | 87 |
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); |