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path: root/drivers/media/video/sh_mobile_ceu_camera.c
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Diffstat (limited to 'drivers/media/video/sh_mobile_ceu_camera.c')
-rw-r--r--drivers/media/video/sh_mobile_ceu_camera.c92
1 files changed, 52 insertions, 40 deletions
diff --git a/drivers/media/video/sh_mobile_ceu_camera.c b/drivers/media/video/sh_mobile_ceu_camera.c
index 424dfacd263a..0baaf94db7e0 100644
--- a/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/drivers/media/video/sh_mobile_ceu_camera.c
@@ -210,27 +210,33 @@ static int sh_mobile_ceu_videobuf_setup(struct vb2_queue *vq,
struct soc_camera_device *icd = container_of(vq, struct soc_camera_device, vb2_vidq);
struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
struct sh_mobile_ceu_dev *pcdev = ici->priv;
- int bytes_per_line;
- unsigned int height;
if (fmt) {
const struct soc_camera_format_xlate *xlate = soc_camera_xlate_by_fourcc(icd,
fmt->fmt.pix.pixelformat);
+ unsigned int bytes_per_line;
+ int ret;
+
if (!xlate)
return -EINVAL;
- bytes_per_line = soc_mbus_bytes_per_line(fmt->fmt.pix.width,
- xlate->host_fmt);
- height = fmt->fmt.pix.height;
+
+ ret = soc_mbus_bytes_per_line(fmt->fmt.pix.width,
+ xlate->host_fmt);
+ if (ret < 0)
+ return ret;
+
+ bytes_per_line = max_t(u32, fmt->fmt.pix.bytesperline, ret);
+
+ ret = soc_mbus_image_size(xlate->host_fmt, bytes_per_line,
+ fmt->fmt.pix.height);
+ if (ret < 0)
+ return ret;
+
+ sizes[0] = max_t(u32, fmt->fmt.pix.sizeimage, ret);
} else {
/* Called from VIDIOC_REQBUFS or in compatibility mode */
- bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
- icd->current_fmt->host_fmt);
- height = icd->user_height;
+ sizes[0] = icd->sizeimage;
}
- if (bytes_per_line < 0)
- return bytes_per_line;
-
- sizes[0] = bytes_per_line * height;
alloc_ctxs[0] = pcdev->alloc_ctx;
@@ -336,21 +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 +
- soc_mbus_bytes_per_line(icd->user_width,
- icd->current_fmt->host_fmt);
+ 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);
}
}
@@ -377,13 +377,8 @@ static void sh_mobile_ceu_videobuf_queue(struct vb2_buffer *vb)
struct sh_mobile_ceu_dev *pcdev = ici->priv;
struct sh_mobile_ceu_buffer *buf = to_ceu_vb(vb);
unsigned long size;
- int bytes_per_line = soc_mbus_bytes_per_line(icd->user_width,
- icd->current_fmt->host_fmt);
- if (bytes_per_line < 0)
- goto error;
-
- size = icd->user_height * bytes_per_line;
+ size = icd->sizeimage;
if (vb2_plane_size(vb, 0) < size) {
dev_err(icd->parent, "Buffer #%d too small (%lu < %lu)\n",
@@ -682,10 +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) {
@@ -698,13 +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) {
@@ -881,11 +870,13 @@ static int sh_mobile_ceu_set_bus_param(struct soc_camera_device *icd)
value |= common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW ? 1 << 1 : 0;
value |= common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW ? 1 << 0 : 0;
- value |= pcdev->is_16bit ? 1 << 12 : 0;
- /* CSI2 mode */
- if (pcdev->pdata->csi2)
+ if (pcdev->pdata->csi2) /* CSI2 mode */
value |= 3 << 12;
+ else if (pcdev->is_16bit)
+ value |= 1 << 12;
+ else if (pcdev->pdata->flags & SH_CEU_FLAG_LOWER_8BIT)
+ value |= 2 << 12;
ceu_write(pcdev, CAMCR, value);
@@ -964,24 +955,28 @@ static const struct soc_mbus_pixelfmt sh_mobile_ceu_formats[] = {
.bits_per_sample = 8,
.packing = SOC_MBUS_PACKING_1_5X8,
.order = SOC_MBUS_ORDER_LE,
+ .layout = SOC_MBUS_LAYOUT_PLANAR_2Y_C,
}, {
.fourcc = V4L2_PIX_FMT_NV21,
.name = "NV21",
.bits_per_sample = 8,
.packing = SOC_MBUS_PACKING_1_5X8,
.order = SOC_MBUS_ORDER_LE,
+ .layout = SOC_MBUS_LAYOUT_PLANAR_2Y_C,
}, {
.fourcc = V4L2_PIX_FMT_NV16,
.name = "NV16",
.bits_per_sample = 8,
.packing = SOC_MBUS_PACKING_2X8_PADHI,
.order = SOC_MBUS_ORDER_LE,
+ .layout = SOC_MBUS_LAYOUT_PLANAR_Y_C,
}, {
.fourcc = V4L2_PIX_FMT_NV61,
.name = "NV61",
.bits_per_sample = 8,
.packing = SOC_MBUS_PACKING_2X8_PADHI,
.order = SOC_MBUS_ORDER_LE,
+ .layout = SOC_MBUS_LAYOUT_PLANAR_Y_C,
},
};
@@ -1845,6 +1840,8 @@ 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)
{
@@ -1863,8 +1860,12 @@ static int sh_mobile_ceu_try_fmt(struct soc_camera_device *icd,
xlate = soc_camera_xlate_by_fourcc(icd, pixfmt);
if (!xlate) {
- dev_warn(icd->parent, "Format %x not found\n", pixfmt);
- return -EINVAL;
+ xlate = icd->current_fmt;
+ dev_dbg(icd->parent, "Format %x not found, keeping %x\n",
+ pixfmt, xlate->host_fmt->fourcc);
+ pixfmt = xlate->host_fmt->fourcc;
+ pix->pixelformat = pixfmt;
+ pix->colorspace = icd->colorspace;
}
/* FIXME: calculate using depth and bus width */
@@ -1923,10 +1924,20 @@ 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);
@@ -2145,6 +2156,7 @@ 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)) {
generated by cgit (git 2.34.1) at 2024-05-02 23:37:53 +0000