[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>
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 79bec15..2ffeb21 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -342,19 +342,15 @@
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 @@
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 @@
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 @@
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 @@
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 @@
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)) {