In image mode, the CEU allows configurable line strides up to 8188
pixels.
Signed-off-by: Laurent Pinchart <[email protected]>
---
drivers/media/video/sh_mobile_ceu_camera.c | 25 +++++++++++++++++--------
1 files changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c
b/drivers/media/video/sh_mobile_ceu_camera.c
index 47b336b..ac98f47 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -338,19 +338,15 @@ 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);
}
}
@@ -677,7 +673,7 @@ static void sh_mobile_ceu_set_rect(struct soc_camera_device
*icd)
in_width *= 2;
left_offset *= 2;
}
- cdwdr_width = width;
+ cdwdr_width = icd->bytesperline;
} else {
int bytes_per_line = soc_mbus_bytes_per_line(width,
icd->current_fmt->host_fmt);
@@ -1840,6 +1836,8 @@ 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)
{
@@ -1916,10 +1914,20 @@ 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);
@@ -2136,6 +2144,7 @@ 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)) {
--
1.7.3.4
--
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