Re: [PATCH v4] media: vimc: get pixformat info from v4l2_format_info
From: Dafna Hirschfeld
Date: Mon Apr 13 2020 - 09:24:08 EST
Hi,
Thanks for tha patch!
On 12.04.20 22:59, Carlos E. C. Barbosa wrote:
From: "Carlos E.C. Barbosa" <barbosa.carlos.ec@xxxxxxxxx>
There is overlapping code over two distinct lists. This repurposes
vimc_pix_map for mapping formats and remaps the calls to the matching
v4l2_format_info.
Signed-off-by: Carlos E. C. Barbosa <barbosa.carlos.ec@xxxxxxxxx>
---
Changes in v2:
As advised by Helen Koike and Hans Verkuil, the const qualifiers are
not
removed, the bayer flag is kept and the unnecessary changes are not
made.
Changes in v3:
Change declaration order of variables and some minor style changes.
Changes in v4:
Unused variables were removed.
v4l2-compliance -m /dev/media0 output:
https://pastebin.com/F98792eW
---
drivers/media/platform/vimc/vimc-capture.c | 14 ++++++++-----
drivers/media/platform/vimc/vimc-common.c | 23 ----------------------
drivers/media/platform/vimc/vimc-common.h | 2 --
drivers/media/platform/vimc/vimc-debayer.c | 7 +++++--
drivers/media/platform/vimc/vimc-scaler.c | 8 ++++++--
drivers/media/platform/vimc/vimc-sensor.c | 9 +++++++--
6 files changed, 27 insertions(+), 36 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index 23e740c1c5c0..4f85e0bb8f27 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -85,6 +85,7 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct v4l2_pix_format *format = &f->fmt.pix;
+ const struct v4l2_format_info *vinfo;
const struct vimc_pix_map *vpix;
format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH,
@@ -94,12 +95,13 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
/* Don't accept a pixelformat that is not on the table */
vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
- if (!vpix) {
+ if (!vpix)
format->pixelformat = fmt_default.pixelformat;
- vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
- }
+
+ vinfo = v4l2_format_info(format->pixelformat);
+
/* TODO: Add support for custom bytesperline values */
- format->bytesperline = format->width * vpix->bpp;
+ format->bytesperline = format->width * vinfo->bpp[0];
format->sizeimage = format->bytesperline * format->height;
if (format->field == V4L2_FIELD_ANY)
@@ -386,6 +388,7 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
const char *vcfg_name)
{
struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
+ const struct v4l2_format_info *vinfo;
const struct vimc_pix_map *vpix;
struct vimc_cap_device *vcap;
struct video_device *vdev;
@@ -435,7 +438,8 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
/* Set default frame format */
vcap->format = fmt_default;
vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat);
- vcap->format.bytesperline = vcap->format.width * vpix->bpp;
+ vinfo = v4l2_format_info(vpix->pixelformat);
you can do instead "vinfo = v4l2_format_info(vcap->format.pixelformat);"
and then you don't need vpix at all
+ vcap->format.bytesperline = vcap->format.width * vinfo->bpp[0];
vcap->format.sizeimage = vcap->format.bytesperline *
vcap->format.height;
diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c
index c95c17c048f2..fc881daee627 100644
--- a/drivers/media/platform/vimc/vimc-common.c
+++ b/drivers/media/platform/vimc/vimc-common.c
@@ -21,19 +21,16 @@ static const struct vimc_pix_map vimc_pix_map_list[] = {
{
.code = MEDIA_BUS_FMT_BGR888_1X24,
.pixelformat = V4L2_PIX_FMT_BGR24,
- .bpp = 3,
.bayer = false,
I know you already removed the bayer field in the first version, I think
it is actually a good idea since it can be retrieved from the v4l2_format_info
through the .pixel_enc field and there is even a helper "v4l2_is_format_bayer".
Then you can add a function
"const struct v4l2_format_info *vimc_code_to_format_info(u32 mbus_code)"
that returns the vinfo directly from the code.
Thank,
Dafna
},
{
.code = MEDIA_BUS_FMT_RGB888_1X24,
.pixelformat = V4L2_PIX_FMT_RGB24,
- .bpp = 3,
.bayer = false,
},
{
.code = MEDIA_BUS_FMT_ARGB8888_1X32,
.pixelformat = V4L2_PIX_FMT_ARGB32,
- .bpp = 4,
.bayer = false,
},
@@ -41,49 +38,41 @@ static const struct vimc_pix_map vimc_pix_map_list[] = {
{
.code = MEDIA_BUS_FMT_SBGGR8_1X8,
.pixelformat = V4L2_PIX_FMT_SBGGR8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGBRG8_1X8,
.pixelformat = V4L2_PIX_FMT_SGBRG8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGRBG8_1X8,
.pixelformat = V4L2_PIX_FMT_SGRBG8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SRGGB8_1X8,
.pixelformat = V4L2_PIX_FMT_SRGGB8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SBGGR10_1X10,
.pixelformat = V4L2_PIX_FMT_SBGGR10,
- .bpp = 2,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGBRG10_1X10,
.pixelformat = V4L2_PIX_FMT_SGBRG10,
- .bpp = 2,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGRBG10_1X10,
.pixelformat = V4L2_PIX_FMT_SGRBG10,
- .bpp = 2,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SRGGB10_1X10,
.pixelformat = V4L2_PIX_FMT_SRGGB10,
- .bpp = 2,
.bayer = true,
},
@@ -91,25 +80,21 @@ static const struct vimc_pix_map vimc_pix_map_list[] = {
{
.code = MEDIA_BUS_FMT_SBGGR10_ALAW8_1X8,
.pixelformat = V4L2_PIX_FMT_SBGGR10ALAW8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGBRG10_ALAW8_1X8,
.pixelformat = V4L2_PIX_FMT_SGBRG10ALAW8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGRBG10_ALAW8_1X8,
.pixelformat = V4L2_PIX_FMT_SGRBG10ALAW8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SRGGB10_ALAW8_1X8,
.pixelformat = V4L2_PIX_FMT_SRGGB10ALAW8,
- .bpp = 1,
.bayer = true,
},
@@ -117,49 +102,41 @@ static const struct vimc_pix_map vimc_pix_map_list[] = {
{
.code = MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8,
.pixelformat = V4L2_PIX_FMT_SBGGR10DPCM8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8,
.pixelformat = V4L2_PIX_FMT_SGBRG10DPCM8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8,
.pixelformat = V4L2_PIX_FMT_SGRBG10DPCM8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8,
.pixelformat = V4L2_PIX_FMT_SRGGB10DPCM8,
- .bpp = 1,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SBGGR12_1X12,
.pixelformat = V4L2_PIX_FMT_SBGGR12,
- .bpp = 2,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGBRG12_1X12,
.pixelformat = V4L2_PIX_FMT_SGBRG12,
- .bpp = 2,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SGRBG12_1X12,
.pixelformat = V4L2_PIX_FMT_SGRBG12,
- .bpp = 2,
.bayer = true,
},
{
.code = MEDIA_BUS_FMT_SRGGB12_1X12,
.pixelformat = V4L2_PIX_FMT_SRGGB12,
- .bpp = 2,
.bayer = true,
},
};
diff --git a/drivers/media/platform/vimc/vimc-common.h b/drivers/media/platform/vimc/vimc-common.h
index 616d5a6b0754..838d5df7b9ed 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -62,7 +62,6 @@ do { \
* struct vimc_pix_map - maps media bus code with v4l2 pixel format
*
* @code: media bus format code defined by MEDIA_BUS_FMT_* macros
- * @bbp: number of bytes each pixel occupies
* @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros
*
* Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding
@@ -70,7 +69,6 @@ do { \
*/
struct vimc_pix_map {
unsigned int code;
- unsigned int bpp;
u32 pixelformat;
bool bayer;
};
diff --git a/drivers/media/platform/vimc/vimc-debayer.c b/drivers/media/platform/vimc/vimc-debayer.c
index baf6bf9f65b5..c141a307851c 100644
--- a/drivers/media/platform/vimc/vimc-debayer.c
+++ b/drivers/media/platform/vimc/vimc-debayer.c
@@ -303,6 +303,7 @@ static int vimc_deb_s_stream(struct v4l2_subdev *sd, int enable)
struct vimc_deb_device *vdeb = v4l2_get_subdevdata(sd);
if (enable) {
+ const struct v4l2_format_info *vinfo;
const struct vimc_pix_map *vpix;
unsigned int frame_size;
@@ -311,12 +312,14 @@ static int vimc_deb_s_stream(struct v4l2_subdev *sd, int enable)
/* Calculate the frame size of the source pad */
vpix = vimc_pix_map_by_code(vdeb->src_code);
+ vinfo = v4l2_format_info(vpix->pixelformat);
frame_size = vdeb->sink_fmt.width * vdeb->sink_fmt.height *
- vpix->bpp;
+ vinfo->bpp[0];
/* Save the bytes per pixel of the sink */
vpix = vimc_pix_map_by_code(vdeb->sink_fmt.code);
- vdeb->sink_bpp = vpix->bpp;
+ vinfo = v4l2_format_info(vpix->pixelformat);
+ vdeb->sink_bpp = vinfo->bpp[0];
/* Get the corresponding pixel map from the table */
vdeb->sink_pix_map =
diff --git a/drivers/media/platform/vimc/vimc-scaler.c b/drivers/media/platform/vimc/vimc-scaler.c
index 7521439747c5..9429aeea9cee 100644
--- a/drivers/media/platform/vimc/vimc-scaler.c
+++ b/drivers/media/platform/vimc/vimc-scaler.c
@@ -180,8 +180,10 @@ static void vimc_sca_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt)
/* Only accept code in the pix map table in non bayer format */
vpix = vimc_pix_map_by_code(fmt->code);
- if (!vpix || vpix->bayer)
+ if (!vpix || vpix->bayer) {
fmt->code = sink_fmt_default.code;
+ vpix = vimc_pix_map_by_code(fmt->code);
+ }
fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
VIMC_FRAME_MAX_WIDTH) & ~1;
@@ -331,6 +333,7 @@ static int vimc_sca_s_stream(struct v4l2_subdev *sd, int enable)
struct vimc_sca_device *vsca = v4l2_get_subdevdata(sd);
if (enable) {
+ const struct v4l2_format_info *vinfo;
const struct vimc_pix_map *vpix;
unsigned int frame_size;
@@ -339,7 +342,8 @@ static int vimc_sca_s_stream(struct v4l2_subdev *sd, int enable)
/* Save the bytes per pixel of the sink */
vpix = vimc_pix_map_by_code(vsca->sink_fmt.code);
- vsca->bpp = vpix->bpp;
+ vinfo = v4l2_format_info(vpix->pixelformat);
+ vsca->bpp = vinfo->bpp[0];
/* Calculate the width in bytes of the src frame */
vsca->src_line_size = vsca->crop_rect.width *
diff --git a/drivers/media/platform/vimc/vimc-sensor.c b/drivers/media/platform/vimc/vimc-sensor.c
index 92daee58209e..fac2260b939f 100644
--- a/drivers/media/platform/vimc/vimc-sensor.c
+++ b/drivers/media/platform/vimc/vimc-sensor.c
@@ -102,10 +102,13 @@ static void vimc_sen_tpg_s_format(struct vimc_sen_device *vsen)
{
const struct vimc_pix_map *vpix =
vimc_pix_map_by_code(vsen->mbus_format.code);
+ const struct v4l2_format_info *vinfo =
+ v4l2_format_info(vpix->pixelformat);
tpg_reset_source(&vsen->tpg, vsen->mbus_format.width,
vsen->mbus_format.height, vsen->mbus_format.field);
- tpg_s_bytesperline(&vsen->tpg, 0, vsen->mbus_format.width * vpix->bpp);
+ tpg_s_bytesperline(&vsen->tpg, 0,
+ vsen->mbus_format.width * vinfo->bpp[0]);
tpg_s_buf_height(&vsen->tpg, vsen->mbus_format.height);
tpg_s_fourcc(&vsen->tpg, vpix->pixelformat);
/* TODO: add support for V4L2_FIELD_ALTERNATE */
@@ -198,12 +201,14 @@ static int vimc_sen_s_stream(struct v4l2_subdev *sd, int enable)
container_of(sd, struct vimc_sen_device, sd);
if (enable) {
+ const struct v4l2_format_info *vinfo;
const struct vimc_pix_map *vpix;
unsigned int frame_size;
/* Calculate the frame size */
vpix = vimc_pix_map_by_code(vsen->mbus_format.code);
- frame_size = vsen->mbus_format.width * vpix->bpp *
+ vinfo = v4l2_format_info(vpix->pixelformat);
+ frame_size = vsen->mbus_format.width * vinfo->bpp[0] *
vsen->mbus_format.height;
/*