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Date: Thu, 3 Oct 2019 16:14:53 -0300
From: Carlos Eduardo Clímaco Barbosa
<climacobarbosacee@...il.com>
To: Helen Koike <helen.koike@...labora.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] media: vimc: include pointer to info in struct vimc_pix_map
Change struct vimc_pix_map and add vimc_pix_map_fmt to clean up and
increase readability
---
drivers/media/platform/vimc/vimc-capture.c | 24 ++++-----
drivers/media/platform/vimc/vimc-common.c | 61 ++++++++++++++++------
drivers/media/platform/vimc/vimc-common.h | 25 ++++++---
drivers/media/platform/vimc/vimc-debayer.c | 8 ++-
drivers/media/platform/vimc/vimc-scaler.c | 26 ++++-----
drivers/media/platform/vimc/vimc-sensor.c | 29 +++++-----
6 files changed, 100 insertions(+), 73 deletions(-)
diff --git a/drivers/media/platform/vimc/vimc-capture.c
b/drivers/media/platform/vimc/vimc-capture.c
index 49bc8c133980..42719605f9d1 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -91,8 +91,7 @@ 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 vimc_pix_map *vpix;
- const struct v4l2_format_info *vinfo;
+ struct vimc_pix_map vpix;
format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH,
VIMC_FRAME_MAX_WIDTH) & ~1;
@@ -101,13 +100,12 @@ 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.info) {
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 * vinfo->bpp[0];
+ format->bytesperline = format->width * vpix.info->bpp[0];
format->sizeimage = format->bytesperline * format->height;
if (format->field == V4L2_FIELD_ANY)
@@ -154,12 +152,12 @@ static int vimc_cap_s_fmt_vid_cap(struct file
*file, void *priv,
static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
- const struct vimc_pix_map *vpix = vimc_pix_map_by_index(f->index);
+ const struct vimc_pix_map vpix = vimc_pix_map_by_index(f->index);
- if (!vpix)
+ if (!vpix.info)
return -EINVAL;
- f->pixelformat = vpix->pixelformat;
+ f->pixelformat = vpix.info->format;
return 0;
}
@@ -167,14 +165,14 @@ static int vimc_cap_enum_fmt_vid_cap(struct file
*file, void *priv,
static int vimc_cap_enum_framesizes(struct file *file, void *fh,
struct v4l2_frmsizeenum *fsize)
{
- const struct vimc_pix_map *vpix;
+ struct vimc_pix_map vpix;
if (fsize->index)
return -EINVAL;
/* Only accept code in the pix map table */
vpix = vimc_pix_map_by_code(fsize->pixel_format);
- if (!vpix)
+ if (!vpix.info)
return -EINVAL;
fsize->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
@@ -398,8 +396,7 @@ static int vimc_cap_comp_bind(struct device *comp,
struct device *master,
{
struct v4l2_device *v4l2_dev = master_data;
struct vimc_platform_data *pdata = comp->platform_data;
- const struct vimc_pix_map *vpix;
- const struct v4l2_format_info *vinfo;
+ struct vimc_pix_map vpix;
struct vimc_cap_device *vcap;
struct video_device *vdev;
struct vb2_queue *q;
@@ -455,8 +452,7 @@ static int vimc_cap_comp_bind(struct device *comp,
struct device *master,
/* Set default frame format */
vcap->format = fmt_default;
vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat);
- vinfo = v4l2_format_info(vpix->pixelformat);
- vcap->format.bytesperline = vcap->format.width * vinfo->bpp[0];
+ vcap->format.bytesperline = vcap->format.width * vpix.info->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 2d1205f0a600..e807734bb373 100644
--- a/drivers/media/platform/vimc/vimc-common.c
+++ b/drivers/media/platform/vimc/vimc-common.c
@@ -14,7 +14,7 @@
* NOTE: non-bayer formats need to come first (necessary for enum_mbus_code
* in the scaler)
*/
-static const struct vimc_pix_map vimc_pix_map_list[] = {
+static struct vimc_pix_map_fmt vimc_pix_map_fmt_list[] = {
/* TODO: add all missing formats */
/* RGB formats */
@@ -118,36 +118,63 @@ static const struct vimc_pix_map vimc_pix_map_list[] = {
},
};
-const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i)
+struct vimc_pix_map vimc_pix_map_fmt_info(const struct vimc_pix_map_fmt *vfmt)
{
- if (i >= ARRAY_SIZE(vimc_pix_map_list))
- return NULL;
- return &vimc_pix_map_list[i];
+ struct vimc_pix_map vpix = {
+ .code = vfmt->code,
+ .info = v4l2_format_info(vfmt->pixelformat),
+ };
+ return vpix;
+}
+
+const struct vimc_pix_map vimc_pix_map_by_index(unsigned int i)
+{
+ struct vimc_pix_map vpix;
+ struct vimc_pix_map_fmt *vfmt;
+
+ if (i >= ARRAY_SIZE(vimc_pix_map_fmt_list))
+ return (struct vimc_pix_map) {};
+
+ vfmt = &vimc_pix_map_fmt_list[i];
+ vpix = vimc_pix_map_fmt_info(vfmt);
+
+ return vpix;
}
EXPORT_SYMBOL_GPL(vimc_pix_map_by_index);
-const struct vimc_pix_map *vimc_pix_map_by_code(u32 code)
+const struct vimc_pix_map vimc_pix_map_by_code(u32 code)
{
+ struct vimc_pix_map vpix;
+ struct vimc_pix_map_fmt *vfmt;
unsigned int i;
- for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) {
- if (vimc_pix_map_list[i].code == code)
- return &vimc_pix_map_list[i];
+ for (i = 0; i < ARRAY_SIZE(vimc_pix_map_fmt_list); i++) {
+ if (vimc_pix_map_fmt_list[i].code == code) {
+ vfmt = &vimc_pix_map_fmt_list[i];
+ vpix = vimc_pix_map_fmt_info(vfmt);
+ return vpix;
+ }
}
- return NULL;
+ return (struct vimc_pix_map) {};
}
EXPORT_SYMBOL_GPL(vimc_pix_map_by_code);
-const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat)
+const struct vimc_pix_map vimc_pix_map_by_pixelformat(u32 pixelformat)
{
+ struct vimc_pix_map vpix;
+ struct vimc_pix_map_fmt *vfmt;
unsigned int i;
- for (i = 0; i < ARRAY_SIZE(vimc_pix_map_list); i++) {
- if (vimc_pix_map_list[i].pixelformat == pixelformat)
- return &vimc_pix_map_list[i];
+ for (i = 0; i < ARRAY_SIZE(vimc_pix_map_fmt_list); i++) {
+ if (vimc_pix_map_fmt_list[i].pixelformat == pixelformat) {
+ vfmt = &vimc_pix_map_fmt_list[i];
+ vpix = vimc_pix_map_fmt_info(vfmt);
+
+ return vpix;
+ }
}
- return NULL;
+ return (struct vimc_pix_map) {};
}
EXPORT_SYMBOL_GPL(vimc_pix_map_by_pixelformat);
@@ -221,7 +248,7 @@ static int vimc_get_mbus_format(struct media_pad *pad,
struct video_device,
entity);
struct vimc_ent_device *ved = video_get_drvdata(vdev);
- const struct vimc_pix_map *vpix;
+ struct vimc_pix_map vpix;
struct v4l2_pix_format vdev_fmt;
if (!ved->vdev_get_format)
@@ -229,7 +256,7 @@ static int vimc_get_mbus_format(struct media_pad *pad,
ved->vdev_get_format(ved, &vdev_fmt);
vpix = vimc_pix_map_by_pixelformat(vdev_fmt.pixelformat);
- v4l2_fill_mbus_format(&fmt->format, &vdev_fmt, vpix->code);
+ v4l2_fill_mbus_format(&fmt->format, &vdev_fmt, vpix.code);
} else {
return -EINVAL;
}
diff --git a/drivers/media/platform/vimc/vimc-common.h
b/drivers/media/platform/vimc/vimc-common.h
index 0a54dcd37410..3eb66c3026b8 100644
--- a/drivers/media/platform/vimc/vimc-common.h
+++ b/drivers/media/platform/vimc/vimc-common.h
@@ -68,20 +68,33 @@ struct vimc_platform_data {
};
/**
- * struct vimc_pix_map - maps media bus code with v4l2 pixel format
+ * struct vimc_pix_map_fmt - 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
* V4L2_PIX_FMT_* fourcc pixelformat and its bytes per pixel (bpp)
*/
-struct vimc_pix_map {
+struct vimc_pix_map_fmt {
unsigned int code;
u32 pixelformat;
};
+/**
+ * struct vimc_pix_map - maps media bus code with v4l2 pixel info
+ *
+ * @code: media bus format code defined by MEDIA_BUS_FMT_* macros
+ * @info: pixel info defined by v4l2_format_info function
+ *
+ * Struct which matches the MEDIA_BUS_FMT_* codes with the corresponding
+ * V4L2_PIX_FMT_* fourcc pixelformat and its information
+ */
+struct vimc_pix_map {
+ unsigned int code;
+ struct v4l2_format_info *info;
+};
+
/**
* struct vimc_ent_device - core struct that represents a node in the topology
*
@@ -148,21 +161,21 @@ int vimc_pipeline_s_stream(struct media_entity
*ent, int enable);
*
* @i: index of the vimc_pix_map struct in vimc_pix_map_list
*/
-const struct vimc_pix_map *vimc_pix_map_by_index(unsigned int i);
+const struct vimc_pix_map vimc_pix_map_by_index(unsigned int i);
/**
* vimc_pix_map_by_code - get vimc_pix_map struct by media bus code
*
* @code: media bus format code defined by MEDIA_BUS_FMT_* macros
*/
-const struct vimc_pix_map *vimc_pix_map_by_code(u32 code);
+const struct vimc_pix_map vimc_pix_map_by_code(u32 code);
/**
* vimc_pix_map_by_pixelformat - get vimc_pix_map struct by v4l2 pixel format
*
* @pixelformat: pixel format devined by V4L2_PIX_FMT_* macros
*/
-const struct vimc_pix_map *vimc_pix_map_by_pixelformat(u32 pixelformat);
+const struct vimc_pix_map vimc_pix_map_by_pixelformat(u32 pixelformat);
/**
* vimc_ent_sd_register - initialize and register a subdev node
diff --git a/drivers/media/platform/vimc/vimc-debayer.c
b/drivers/media/platform/vimc/vimc-debayer.c
index 50801f76a448..8823d856b89f 100644
--- a/drivers/media/platform/vimc/vimc-debayer.c
+++ b/drivers/media/platform/vimc/vimc-debayer.c
@@ -313,8 +313,7 @@ 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 vimc_pix_map *vpix;
- const struct v4l2_format_info *vinfo;
+ struct vimc_pix_map vpix;
unsigned int frame_size;
if (vdeb->src_frame)
@@ -322,13 +321,12 @@ 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 *
- vinfo->bpp[0];
+ vpix.info->bpp[0];
/* Save the bytes per pixel of the sink */
vpix = vimc_pix_map_by_code(vdeb->sink_fmt.code);
- vdeb->sink_bpp = vinfo->bpp[0];
+ vdeb->sink_bpp = vpix.info->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 599653169b1e..11b054c05374 100644
--- a/drivers/media/platform/vimc/vimc-scaler.c
+++ b/drivers/media/platform/vimc/vimc-scaler.c
@@ -66,11 +66,9 @@ static int vimc_sca_init_cfg(struct v4l2_subdev *sd,
return 0;
}
-static int vimc_is_bayer(const struct vimc_pix_map *vpix)
+static int vimc_is_bayer(const struct vimc_pix_map vpix)
{
- const struct v4l2_format_info *vinfo =
- v4l2_format_info(vpix->pixelformat);
- const u8 *bpp = vinfo->bpp;
+ const u8 *bpp = vpix.info->bpp;
return bpp[0] != 1 || bpp[1] || bpp[2] || bpp[3];
}
@@ -79,12 +77,12 @@ static int vimc_sca_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
- const struct vimc_pix_map *vpix = vimc_pix_map_by_index(code->index);
+ const struct vimc_pix_map vpix = vimc_pix_map_by_index(code->index);
/* We don't support bayer format */
- if (!vpix || vimc_is_bayer(vpix))
+ if (!vpix.info || vimc_is_bayer(vpix))
return -EINVAL;
- code->code = vpix->code;
+ code->code = vpix.code;
return 0;
}
@@ -93,14 +91,14 @@ static int vimc_sca_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
- const struct vimc_pix_map *vpix;
+ struct vimc_pix_map vpix;
if (fse->index)
return -EINVAL;
/* Only accept code in the pix map table in non bayer format */
vpix = vimc_pix_map_by_code(fse->code);
- if (!vpix || vimc_is_bayer(vpix))
+ if (!vpix.info || vimc_is_bayer(vpix))
return -EINVAL;
fse->min_width = VIMC_FRAME_MIN_WIDTH;
@@ -139,11 +137,11 @@ static int vimc_sca_get_fmt(struct v4l2_subdev *sd,
static void vimc_sca_adjust_sink_fmt(struct v4l2_mbus_framefmt *fmt)
{
- const struct vimc_pix_map *vpix;
+ struct vimc_pix_map vpix;
/* Only accept code in the pix map table in non bayer format */
vpix = vimc_pix_map_by_code(fmt->code);
- if (!vpix || vimc_is_bayer(vpix))
+ if (!vpix.info || vimc_is_bayer(vpix))
fmt->code = sink_fmt_default.code;
fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
@@ -217,8 +215,7 @@ 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 vimc_pix_map *vpix;
- const struct v4l2_format_info *vinfo;
+ struct vimc_pix_map vpix;
unsigned int frame_size;
if (vsca->src_frame)
@@ -226,8 +223,7 @@ 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);
- vinfo = v4l2_format_info(vpix->pixelformat);
- vsca->bpp = vinfo->bpp[0];
+ vsca->bpp = vpix.info->bpp[0];
/* Calculate the width in bytes of the src frame */
vsca->src_line_size = vsca->sink_fmt.width *
diff --git a/drivers/media/platform/vimc/vimc-sensor.c
b/drivers/media/platform/vimc/vimc-sensor.c
index 81acd12b0896..45650beaa0c2 100644
--- a/drivers/media/platform/vimc/vimc-sensor.c
+++ b/drivers/media/platform/vimc/vimc-sensor.c
@@ -59,12 +59,12 @@ static int vimc_sen_enum_mbus_code(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_mbus_code_enum *code)
{
- const struct vimc_pix_map *vpix = vimc_pix_map_by_index(code->index);
+ struct vimc_pix_map vpix = vimc_pix_map_by_index(code->index);
- if (!vpix)
+ if (!vpix.info)
return -EINVAL;
- code->code = vpix->code;
+ code->code = vpix.code;
return 0;
}
@@ -73,14 +73,14 @@ static int vimc_sen_enum_frame_size(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_size_enum *fse)
{
- const struct vimc_pix_map *vpix;
+ struct vimc_pix_map vpix;
if (fse->index)
return -EINVAL;
/* Only accept code in the pix map table */
vpix = vimc_pix_map_by_code(fse->code);
- if (!vpix)
+ if (!vpix.info)
return -EINVAL;
fse->min_width = VIMC_FRAME_MIN_WIDTH;
@@ -107,16 +107,15 @@ static int vimc_sen_get_fmt(struct v4l2_subdev *sd,
static void vimc_sen_tpg_s_format(struct vimc_sen_device *vsen)
{
- const struct vimc_pix_map *vpix =
+ 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 * vinfo->bpp[0]);
+ tpg_s_bytesperline(&vsen->tpg, 0,
+ vsen->mbus_format.width * vpix.info->bpp[0]);
tpg_s_buf_height(&vsen->tpg, vsen->mbus_format.height);
- tpg_s_fourcc(&vsen->tpg, vpix->pixelformat);
+ tpg_s_fourcc(&vsen->tpg, vpix.info->format);
/* TODO: add support for V4L2_FIELD_ALTERNATE */
tpg_s_field(&vsen->tpg, vsen->mbus_format.field, false);
tpg_s_colorspace(&vsen->tpg, vsen->mbus_format.colorspace);
@@ -127,11 +126,11 @@ static void vimc_sen_tpg_s_format(struct
vimc_sen_device *vsen)
static void vimc_sen_adjust_fmt(struct v4l2_mbus_framefmt *fmt)
{
- const struct vimc_pix_map *vpix;
+ struct vimc_pix_map vpix;
/* Only accept code in the pix map table */
vpix = vimc_pix_map_by_code(fmt->code);
- if (!vpix)
+ if (!vpix.info)
fmt->code = fmt_default.code;
fmt->width = clamp_t(u32, fmt->width, VIMC_FRAME_MIN_WIDTH,
@@ -207,8 +206,7 @@ static int vimc_sen_s_stream(struct v4l2_subdev
*sd, int enable)
container_of(sd, struct vimc_sen_device, sd);
if (enable) {
- const struct vimc_pix_map *vpix;
- const struct v4l2_format_info *vinfo;
+ struct vimc_pix_map vpix;
unsigned int frame_size;
if (vsen->kthread_sen)
@@ -217,8 +215,7 @@ static int vimc_sen_s_stream(struct v4l2_subdev
*sd, int enable)
/* Calculate the frame size */
vpix = vimc_pix_map_by_code(vsen->mbus_format.code);
- vinfo = v4l2_format_info(vpix->pixelformat);
- frame_size = vsen->mbus_format.width * vinfo->bpp[0] *
+ frame_size = vsen->mbus_format.width * vpix.info->bpp[0] *
vsen->mbus_format.height;
/*
--
2.23.0
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