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media: staging: rkisp1: rsz: Add support to more YUV encoded mbus codes on src pad

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Add support to more YUV encoded media bus formats on the resizer's
source pad. The patch defines an array rkisp1_rsz_yuv_formats[]
with the list of supported YUV media bus formats and their {hv}div
values. The {hv}div are used in the function 'rkisp1_rsz_config'
instead of the macros RKISP1_MBUS_FMT_(HV)DIV, and instead of
checking the capture format.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Dafna Hirschfeld 2020-09-01 13:16:10 +02:00 committed by Mauro Carvalho Chehab
parent ca5331cf9d
commit 251b6eebb6
1 changed files with 49 additions and 18 deletions
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67
drivers/staging/media/rkisp1/rkisp1-resizer.c
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@ -16,8 +16,36 @@
#define RKISP1_DEF_FMT MEDIA_BUS_FMT_YUYV8_2X8
#define RKISP1_DEF_PIXEL_ENC V4L2_PIXEL_ENC_YUV
#define RKISP1_MBUS_FMT_HDIV 2
#define RKISP1_MBUS_FMT_VDIV 1
struct rkisp1_rsz_yuv_mbus_info {
u32 mbus_code;
u32 hdiv;
u32 vdiv;
};
static const struct rkisp1_rsz_yuv_mbus_info rkisp1_rsz_yuv_src_formats[] = {
{
.mbus_code = MEDIA_BUS_FMT_YUYV8_2X8, /* YUV422 */
.hdiv = 2,
.vdiv = 1,
},
{
.mbus_code = MEDIA_BUS_FMT_YUYV8_1_5X8, /* YUV420 */
.hdiv = 2,
.vdiv = 2,
},
};
static const struct rkisp1_rsz_yuv_mbus_info *rkisp1_rsz_get_yuv_mbus_info(u32 mbus_code)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(rkisp1_rsz_yuv_src_formats); i++) {
if (rkisp1_rsz_yuv_src_formats[i].mbus_code == mbus_code)
return &rkisp1_rsz_yuv_src_formats[i];
}
return NULL;
}
enum rkisp1_shadow_regs_when {
RKISP1_SHADOW_REGS_SYNC,
@ -361,16 +389,19 @@ static void rkisp1_rsz_config_regs(struct rkisp1_resizer *rsz,
static void rkisp1_rsz_config(struct rkisp1_resizer *rsz,
enum rkisp1_shadow_regs_when when)
{
u8 hdiv = RKISP1_MBUS_FMT_HDIV, vdiv = RKISP1_MBUS_FMT_VDIV;
const struct rkisp1_rsz_yuv_mbus_info *sink_yuv_info, *src_yuv_info;
struct v4l2_rect sink_y, sink_c, src_y, src_c;
struct v4l2_mbus_framefmt *src_fmt;
struct v4l2_mbus_framefmt *src_fmt, *sink_fmt;
struct v4l2_rect *sink_crop;
struct rkisp1_capture *cap = &rsz->rkisp1->capture_devs[rsz->id];
sink_crop = rkisp1_rsz_get_pad_crop(rsz, NULL, RKISP1_RSZ_PAD_SINK,
V4L2_SUBDEV_FORMAT_ACTIVE);
src_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SRC,
V4L2_SUBDEV_FORMAT_ACTIVE);
src_yuv_info = rkisp1_rsz_get_yuv_mbus_info(src_fmt->code);
sink_fmt = rkisp1_rsz_get_pad_fmt(rsz, NULL, RKISP1_RSZ_PAD_SINK,
V4L2_SUBDEV_FORMAT_ACTIVE);
sink_yuv_info = rkisp1_rsz_get_yuv_mbus_info(sink_fmt->code);
/*
* The resizer only works on yuv formats,
@ -386,25 +417,17 @@ static void rkisp1_rsz_config(struct rkisp1_resizer *rsz,
src_y.width = src_fmt->width;
src_y.height = src_fmt->height;
sink_c.width = sink_y.width / RKISP1_MBUS_FMT_HDIV;
sink_c.height = sink_y.height / RKISP1_MBUS_FMT_VDIV;
sink_c.width = sink_y.width / sink_yuv_info->hdiv;
sink_c.height = sink_y.height / sink_yuv_info->vdiv;
/*
* The resizer is used not only to change the dimensions of the frame
* but also to change the scale for YUV formats,
* (4:2:2 -> 4:2:0 for example). So the width/height of the CbCr
* streams should be set according to the pixel format in the capture.
* The resizer always gets the input as YUV422. If the capture format
* is RGB then the memory input should be YUV422 so we don't change the
* default hdiv, vdiv in that case.
* streams should be set according to the media bus format in the src pad.
*/
if (v4l2_is_format_yuv(cap->pix.info)) {
hdiv = cap->pix.info->hdiv;
vdiv = cap->pix.info->vdiv;
}
src_c.width = src_y.width / hdiv;
src_c.height = src_y.height / vdiv;
src_c.width = src_y.width / src_yuv_info->hdiv;
src_c.height = src_y.height / src_yuv_info->vdiv;
if (sink_c.width == src_c.width && sink_c.height == src_c.height) {
rkisp1_rsz_disable(rsz, when);
@ -497,9 +520,17 @@ static void rkisp1_rsz_set_src_fmt(struct rkisp1_resizer *rsz,
struct v4l2_mbus_framefmt *format,
unsigned int which)
{
const struct rkisp1_isp_mbus_info *mbus_info;
struct v4l2_mbus_framefmt *src_fmt;
src_fmt = rkisp1_rsz_get_pad_fmt(rsz, cfg, RKISP1_RSZ_PAD_SRC, which);
mbus_info = rkisp1_isp_mbus_info_get(src_fmt->code);
/* for YUV formats, userspace can change the mbus code on the src pad if it is supported */
if (mbus_info->pixel_enc == V4L2_PIXEL_ENC_YUV &&
rkisp1_rsz_get_yuv_mbus_info(format->code))
src_fmt->code = format->code;
src_fmt->width = clamp_t(u32, format->width,
rsz->config->min_rsz_width,
rsz->config->max_rsz_width);