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gpu: ipu-cpmem: modify ipu_cpmem_set_yuv_planar_full for better control 

Let ipu_cpmem_set_yuv_planar_full take a DRM_FORMAT instead of a
V4L2_PIXFMT and allow better control over U/V stride, U offset and
V offset settings in the CPMEM.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Philipp Zabel 2016-02-23 10:22:50 +01:00
parent f55532a0c0
commit 90195c3651
2 changed files with 39 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

79
drivers/gpu/ipu-v3/ipu-cpmem.c
View File

@ -395,60 +395,48 @@ void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format)
EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_interleaved);
void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
u32 pixel_format, int stride,
int u_offset, int v_offset)
unsigned int uv_stride,
unsigned int u_offset, unsigned int v_offset)
{
switch (pixel_format) {
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YUV422P:
ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, (stride / 2) - 1);
ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8);
ipu_ch_param_write_field(ch, IPU_FIELD_VBO, v_offset / 8);
break;
case V4L2_PIX_FMT_YVU420:
ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, (stride / 2) - 1);
ipu_ch_param_write_field(ch, IPU_FIELD_UBO, v_offset / 8);
ipu_ch_param_write_field(ch, IPU_FIELD_VBO, u_offset / 8);
break;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, stride - 1);
ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8);
ipu_ch_param_write_field(ch, IPU_FIELD_VBO, u_offset / 8);
break;
}
ipu_ch_param_write_field(ch, IPU_FIELD_SLUV, uv_stride - 1);
ipu_ch_param_write_field(ch, IPU_FIELD_UBO, u_offset / 8);
ipu_ch_param_write_field(ch, IPU_FIELD_VBO, v_offset / 8);
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar_full);
void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch,
u32 pixel_format, int stride, int height)
{
int u_offset, v_offset;
int fourcc, u_offset, v_offset;
int uv_stride = 0;
switch (pixel_format) {
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YVU420:
fourcc = v4l2_pix_fmt_to_drm_fourcc(pixel_format);
switch (fourcc) {
case DRM_FORMAT_YUV420:
uv_stride = stride / 2;
u_offset = stride * height;
v_offset = u_offset + (uv_stride * height / 2);
ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_YUV422P:
case DRM_FORMAT_YVU420:
uv_stride = stride / 2;
v_offset = stride * height;
u_offset = v_offset + (uv_stride * height / 2);
break;
case DRM_FORMAT_YUV422:
uv_stride = stride / 2;
u_offset = stride * height;
v_offset = u_offset + (uv_stride * height);
ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
uv_stride = stride;
u_offset = stride * height;
ipu_cpmem_set_yuv_planar_full(ch, pixel_format, stride,
u_offset, 0);
v_offset = 0;
break;
default:
return;
}
ipu_cpmem_set_yuv_planar_full(ch, uv_stride, u_offset, v_offset);
}
EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar);
@ -684,6 +672,15 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
switch (pix->pixelformat) {
case V4L2_PIX_FMT_YUV420:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
u_offset = U_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
v_offset = V_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline / 2,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_YVU420:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
u_offset = U_OFFSET(pix, image->rect.left,
@ -691,9 +688,8 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
v_offset = V_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
u_offset, v_offset);
ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline / 2,
v_offset, u_offset);
break;
case V4L2_PIX_FMT_YUV422P:
offset = Y_OFFSET(pix, image->rect.left, image->rect.top);
@ -702,8 +698,7 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
v_offset = V2_OFFSET(pix, image->rect.left,
image->rect.top) - offset;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline / 2,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_NV12:
@ -712,8 +707,7 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
image->rect.top) - offset;
v_offset = 0;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_NV16:
@ -722,8 +716,7 @@ int ipu_cpmem_set_image(struct ipuv3_channel *ch, struct ipu_image *image)
image->rect.top) - offset;
v_offset = 0;
ipu_cpmem_set_yuv_planar_full(ch, pix->pixelformat,
pix->bytesperline,
ipu_cpmem_set_yuv_planar_full(ch, pix->bytesperline,
u_offset, v_offset);
break;
case V4L2_PIX_FMT_UYVY:

5
include/video/imx-ipu-v3.h
View File

@ -194,8 +194,9 @@ int ipu_cpmem_set_format_rgb(struct ipuv3_channel *ch,
int ipu_cpmem_set_format_passthrough(struct ipuv3_channel *ch, int width);
void ipu_cpmem_set_yuv_interleaved(struct ipuv3_channel *ch, u32 pixel_format);
void ipu_cpmem_set_yuv_planar_full(struct ipuv3_channel *ch,
u32 pixel_format, int stride,
int u_offset, int v_offset);
unsigned int uv_stride,
unsigned int u_offset,
unsigned int v_offset);
void ipu_cpmem_set_yuv_planar(struct ipuv3_channel *ch,
u32 pixel_format, int stride, int height);
int ipu_cpmem_set_fmt(struct ipuv3_channel *ch, u32 drm_fourcc);