diff options
| author | Laurent Pinchart | 2012-03-21 12:03:28 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2012-05-15 21:12:54 +0200 |
| commit | 914f05c8118e17d65c4626ae3ed2edcf79f00031 (patch) | |
| tree | b41353c64be1394015f7c976fbafb299b61c21e8 | |
| parent | [media] mx2_camera: Use soc_mbus_image_size() instead of manual computation (diff) | |
| download | kernel-qcow2-linux-914f05c8118e17d65c4626ae3ed2edcf79f00031.tar.gz kernel-qcow2-linux-914f05c8118e17d65c4626ae3ed2edcf79f00031.tar.xz kernel-qcow2-linux-914f05c8118e17d65c4626ae3ed2edcf79f00031.zip | |
[media] soc-camera: Support user-configurable line stride
Add a capabilities field to the soc_camera_host structure to flag hosts
that support user-configurable line strides. soc_camera_try_fmt() then
passes the user-provided bytesperline and sizeimage format fields to
such hosts, and expects the host to check (and fix if needed) the
values.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[g.liakhovetski@gmx.de: fix a typo in mx2_camera.c]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/mx2_camera.c | 2 | ||||
| -rw-r--r-- | drivers/media/video/soc_camera.c | 6 | ||||
| -rw-r--r-- | include/media/soc_camera.h | 4 |
3 files changed, 10 insertions, 2 deletions
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c index b63168781cfe..ecd83faf9038 100644 --- a/drivers/media/video/mx2_camera.c +++ b/drivers/media/video/mx2_camera.c @@ -1787,6 +1787,8 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev) pcdev->soc_host.priv = pcdev; pcdev->soc_host.v4l2_dev.dev = &pdev->dev; pcdev->soc_host.nr = pdev->id; + if (cpu_is_mx25()) + pcdev->soc_host.capabilities = SOCAM_HOST_CAP_STRIDE; pcdev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); if (IS_ERR(pcdev->alloc_ctx)) { diff --git a/drivers/media/video/soc_camera.c b/drivers/media/video/soc_camera.c index 5e3274e55756..cfac53544ba6 100644 --- a/drivers/media/video/soc_camera.c +++ b/drivers/media/video/soc_camera.c @@ -171,8 +171,10 @@ static int soc_camera_try_fmt(struct soc_camera_device *icd, dev_dbg(icd->pdev, "TRY_FMT(%c%c%c%c, %ux%u)\n", pixfmtstr(pix->pixelformat), pix->width, pix->height); - pix->bytesperline = 0; - pix->sizeimage = 0; + if (!(ici->capabilities & SOCAM_HOST_CAP_STRIDE)) { + pix->bytesperline = 0; + pix->sizeimage = 0; + } ret = ici->ops->try_fmt(icd, f); if (ret < 0) diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index a87062c393b5..d865dcf9879f 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -56,11 +56,15 @@ struct soc_camera_device { }; }; +/* Host supports programmable stride */ +#define SOCAM_HOST_CAP_STRIDE (1 << 0) + struct soc_camera_host { struct v4l2_device v4l2_dev; struct list_head list; struct mutex host_lock; /* Protect during probing */ unsigned char nr; /* Host number */ + u32 capabilities; void *priv; const char *drv_name; struct soc_camera_host_ops *ops; |