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media: renesas-ceu: Add support for YUYV permutations 

Add support for YUYV permutations, passing down to the subdevice the media bus
format with components ordering that reflect the output pixel format one.

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Jacopo Mondi 2018-06-06 09:21:53 -04:00 коммит произвёл Mauro Carvalho Chehab
Родитель 4f9195e3f8
Коммит 055eceebec
1 изменённых файлов: 78 добавлений и 13 удалений
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91
drivers/media/platform/renesas-ceu.c
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@ -254,6 +254,18 @@ static const struct ceu_fmt ceu_fmt_list[] = {
.fourcc = V4L2_PIX_FMT_YUYV,
.bpp = 16,
},
{
.fourcc = V4L2_PIX_FMT_UYVY,
.bpp = 16,
},
{
.fourcc = V4L2_PIX_FMT_YVYU,
.bpp = 16,
},
{
.fourcc = V4L2_PIX_FMT_VYUY,
.bpp = 16,
},
};
static const struct ceu_fmt *get_ceu_fmt_from_fourcc(unsigned int fourcc)
@ -272,6 +284,9 @@ static bool ceu_fmt_mplane(struct v4l2_pix_format_mplane *pix)
{
switch (pix->pixelformat) {
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_YVYU:
case V4L2_PIX_FMT_VYUY:
return false;
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
@ -380,7 +395,9 @@ static int ceu_hw_config(struct ceu_device *ceudev)
switch (pix->pixelformat) {
/* Data fetch sync mode */
case V4L2_PIX_FMT_YUYV:
/* TODO: handle YUYV permutations through DTARY bits. */
case V4L2_PIX_FMT_YVYU:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_VYUY:
camcr = CEU_CAMCR_JPEG;
cdocr |= CEU_CDOCR_NO_DOWSAMPLE;
cfzsr = (pix->height << 16) | pix->width;
@ -568,6 +585,9 @@ static void ceu_calc_plane_sizes(struct ceu_device *ceudev,
switch (pix->pixelformat) {
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_YVYU:
case V4L2_PIX_FMT_VYUY:
pix->num_planes = 1;
bpl = pix->width * ceu_fmt->bpp / 8;
szimage = pix->height * bpl;
@ -762,42 +782,59 @@ static const struct vb2_ops ceu_vb2_ops = {
/* --- CEU image formats handling --- */
/*
* ceu_try_fmt() - test format on CEU and sensor
* __ceu_try_fmt() - test format on CEU and sensor
* @ceudev: The CEU device.
* @v4l2_fmt: format to test.
* @sd_mbus_code: the media bus code accepted by the subdevice; output param.
*
* Returns 0 for success, < 0 for errors.
*/
static int ceu_try_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt)
static int __ceu_try_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt,
u32 *sd_mbus_code)
{
struct ceu_subdev *ceu_sd = ceudev->sd;
struct v4l2_pix_format_mplane *pix = &v4l2_fmt->fmt.pix_mp;
struct v4l2_subdev *v4l2_sd = ceu_sd->v4l2_sd;
struct v4l2_subdev_pad_config pad_cfg;
const struct ceu_fmt *ceu_fmt;
u32 mbus_code_old;
u32 mbus_code;
int ret;
/*
* Set format on sensor sub device: bus format used to produce memory
* format is selected at initialization time.
* format is selected depending on YUV component ordering or
* at initialization time.
*/
struct v4l2_subdev_format sd_format = {
.which = V4L2_SUBDEV_FORMAT_TRY,
.format = {
.code = ceu_sd->mbus_fmt.mbus_code,
},
};
mbus_code_old = ceu_sd->mbus_fmt.mbus_code;
switch (pix->pixelformat) {
case V4L2_PIX_FMT_YUYV:
mbus_code = MEDIA_BUS_FMT_YUYV8_2X8;
break;
case V4L2_PIX_FMT_UYVY:
mbus_code = MEDIA_BUS_FMT_UYVY8_2X8;
break;
case V4L2_PIX_FMT_YVYU:
mbus_code = MEDIA_BUS_FMT_YVYU8_2X8;
break;
case V4L2_PIX_FMT_VYUY:
mbus_code = MEDIA_BUS_FMT_VYUY8_2X8;
break;
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV61:
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV21:
mbus_code = ceu_sd->mbus_fmt.mbus_code;
break;
default:
pix->pixelformat = V4L2_PIX_FMT_NV16;
mbus_code = ceu_sd->mbus_fmt.mbus_code;
break;
}
@ -808,9 +845,25 @@ static int ceu_try_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt)
&pix->height, 4, CEU_MAX_HEIGHT, 4, 0);
v4l2_fill_mbus_format_mplane(&sd_format.format, pix);
/*
* Try with the mbus_code matching YUYV components ordering first,
* if that one fails, fallback to default selected at initialization
* time.
*/
sd_format.format.code = mbus_code;
ret = v4l2_subdev_call(v4l2_sd, pad, set_fmt, &pad_cfg, &sd_format);
if (ret)
return ret;
if (ret) {
if (ret == -EINVAL) {
/* fallback */
sd_format.format.code = mbus_code_old;
ret = v4l2_subdev_call(v4l2_sd, pad, set_fmt,
&pad_cfg, &sd_format);
}
if (ret)
return ret;
}
/* Apply size returned by sensor as the CEU can't scale. */
v4l2_fill_pix_format_mplane(pix, &sd_format.format);
@ -818,9 +871,22 @@ static int ceu_try_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt)
/* Calculate per-plane sizes based on image format. */
ceu_calc_plane_sizes(ceudev, ceu_fmt, pix);
/* Report to caller the configured mbus format. */
*sd_mbus_code = sd_format.format.code;
return 0;
}
/*
* ceu_try_fmt() - Wrapper for __ceu_try_fmt; discard configured mbus_fmt
*/
static int ceu_try_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt)
{
u32 mbus_code;
return __ceu_try_fmt(ceudev, v4l2_fmt, &mbus_code);
}
/*
* ceu_set_fmt() - Apply the supplied format to both sensor and CEU
*/
@ -828,6 +894,7 @@ static int ceu_set_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt)
{
struct ceu_subdev *ceu_sd = ceudev->sd;
struct v4l2_subdev *v4l2_sd = ceu_sd->v4l2_sd;
u32 mbus_code;
int ret;
/*
@ -836,15 +903,13 @@ static int ceu_set_fmt(struct ceu_device *ceudev, struct v4l2_format *v4l2_fmt)
*/
struct v4l2_subdev_format format = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.format = {
.code = ceu_sd->mbus_fmt.mbus_code,
},
};
ret = ceu_try_fmt(ceudev, v4l2_fmt);
ret = __ceu_try_fmt(ceudev, v4l2_fmt, &mbus_code);
if (ret)
return ret;
format.format.code = mbus_code;
v4l2_fill_mbus_format_mplane(&format.format, &v4l2_fmt->fmt.pix_mp);
ret = v4l2_subdev_call(v4l2_sd, pad, set_fmt, NULL, &format);
if (ret)