diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2012-03-21 08:16:05 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-05-15 16:13:22 -0300 |
| commit | fc13baff743cf9fa49035974471c17378bfe6146 (patch) | |
| tree | 9bd286e49b1dfb0abec5d12fecd429ce1fd39a0e | |
| parent | 914f05c8118e17d65c4626ae3ed2edcf79f00031 (diff) | |
[media] sh_mobile_ceu_camera: Support user-configurable line stride
In image mode, the CEU allows configurable line strides up to 8188
pixels.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[g.liakhovetski@gmx.de: unify sh_mobile_ceu_set_rect() in data-fetch mode]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/sh_mobile_ceu_camera.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c index 79bec15cc4a..2ffeb21dfe3 100644 --- a/drivers/media/video/sh_mobile_ceu_camera.c +++ b/drivers/media/video/sh_mobile_ceu_camera.c @@ -342,19 +342,15 @@ static int sh_mobile_ceu_capture(struct sh_mobile_ceu_dev *pcdev) ceu_write(pcdev, top1, phys_addr_top); if (V4L2_FIELD_NONE != pcdev->field) { - if (planar) - phys_addr_bottom = phys_addr_top + icd->user_width; - else - phys_addr_bottom = phys_addr_top + icd->bytesperline; + phys_addr_bottom = phys_addr_top + icd->bytesperline; ceu_write(pcdev, bottom1, phys_addr_bottom); } if (planar) { - phys_addr_top += icd->user_width * - icd->user_height; + phys_addr_top += icd->bytesperline * icd->user_height; ceu_write(pcdev, top2, phys_addr_top); if (V4L2_FIELD_NONE != pcdev->field) { - phys_addr_bottom = phys_addr_top + icd->user_width; + phys_addr_bottom = phys_addr_top + icd->bytesperline; ceu_write(pcdev, bottom2, phys_addr_bottom); } } @@ -681,10 +677,7 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd) in_width *= 2; left_offset *= 2; } - cdwdr_width = width; } else { - int bytes_per_line = soc_mbus_bytes_per_line(width, - icd->current_fmt->host_fmt); unsigned int w_factor; switch (icd->current_fmt->host_fmt->packing) { @@ -697,13 +690,10 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device *icd) in_width = cam->width * w_factor; left_offset *= w_factor; - - if (bytes_per_line < 0) - cdwdr_width = width; - else - cdwdr_width = bytes_per_line; } + cdwdr_width = icd->bytesperline; + height = icd->user_height; in_height = cam->height; if (V4L2_FIELD_NONE != pcdev->field) { @@ -1848,6 +1838,8 @@ static int sh_mobile_ceu_set_fmt(struct soc_camera_device *icd, return 0; } +#define CEU_CHDW_MAX 8188U /* Maximum line stride */ + static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, struct v4l2_format *f) { @@ -1926,10 +1918,20 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd, pix->width = width; if (mf.height > height) pix->height = height; + + pix->bytesperline = max(pix->bytesperline, pix->width); + pix->bytesperline = min(pix->bytesperline, CEU_CHDW_MAX); + pix->bytesperline &= ~3; + break; + + default: + /* Configurable stride isn't supported in pass-through mode. */ + pix->bytesperline = 0; } pix->width &= ~3; pix->height &= ~3; + pix->sizeimage = 0; dev_geo(icd->parent, "%s(): return %d, fmt 0x%x, %ux%u\n", __func__, ret, pix->pixelformat, pix->width, pix->height); @@ -2148,6 +2150,7 @@ static int __devinit sh_mobile_ceu_probe(struct platform_device *pdev) pcdev->ici.nr = pdev->id; pcdev->ici.drv_name = dev_name(&pdev->dev); pcdev->ici.ops = &sh_mobile_ceu_host_ops; + pcdev->ici.capabilities = SOCAM_HOST_CAP_STRIDE; pcdev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); if (IS_ERR(pcdev->alloc_ctx)) { |