static int rvin_reset_format(struct rvin_dev *vin)
{
struct v4l2_subdev_format fmt = {
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
.pad = vin->parallel->source_pad,
};
int ret;
ret = v4l2_subdev_call(vin_to_source(vin), pad, get_fmt, NULL, &fmt);
if (ret)
return ret;
v4l2_fill_pix_format(&vin->format, &fmt.format);
rvin_format_align(vin, &vin->format);
vin->source.top = 0;
vin->source.left = 0;
vin->source.width = vin->format.width;
vin->source.height = vin->format.height;
vin->crop = vin->source;
vin->compose = vin->source;
return 0;
}
static int rvin_try_format(struct rvin_dev *vin, u32 which,
struct v4l2_pix_format *pix,
struct v4l2_rect *crop, struct v4l2_rect *compose)
{
struct v4l2_subdev *sd = vin_to_source(vin);
struct v4l2_subdev_pad_config *pad_cfg;
struct v4l2_subdev_format format = {
.which = which,
.pad = vin->parallel->source_pad,
};
enum v4l2_field field;
u32 width, height;
int ret;
pad_cfg = v4l2_subdev_alloc_pad_config(sd);
if (pad_cfg == NULL)
return -ENOMEM;
if (!rvin_format_from_pixel(pix->pixelformat) ||
(vin->info->model == RCAR_M1 &&
pix->pixelformat == V4L2_PIX_FMT_XBGR32))
pix->pixelformat = RVIN_DEFAULT_FORMAT;
v4l2_fill_mbus_format(&format.format, pix, vin->mbus_code);
/* Allow the video device to override field and to scale */
field = pix->field;
width = pix->width;
height = pix->height;
ret = v4l2_subdev_call(sd, pad, set_fmt, pad_cfg, &format);
if (ret < 0 && ret != -ENOIOCTLCMD)
goto done;
v4l2_fill_pix_format(pix, &format.format);
if (crop) {
crop->top = 0;
crop->left = 0;
crop->width = pix->width;
crop->height = pix->height;
/*
* If source is ALTERNATE the driver will use the VIN hardware
* to INTERLACE it. The crop height then needs to be doubled.
*/
if (pix->field == V4L2_FIELD_ALTERNATE)
crop->height *= 2;
}
if (field != V4L2_FIELD_ANY)
pix->field = field;
pix->width = width;
pix->height = height;
rvin_format_align(vin, pix);
if (compose) {
compose->top = 0;
compose->left = 0;
compose->width = pix->width;
compose->height = pix->height;
}
done:
v4l2_subdev_free_pad_config(pad_cfg);
return 0;
}
static int rvin_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct rvin_dev *vin = video_drvdata(file);
strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
strscpy(cap->card, "R_Car_VIN", sizeof(cap->card));
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
dev_name(vin->dev));
return 0;
}
static int rvin_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct rvin_dev *vin = video_drvdata(file);
return rvin_try_format(vin, V4L2_SUBDEV_FORMAT_TRY, &f->fmt.pix, NULL,
NULL);
}
static int rvin_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_rect crop, compose;
int ret;
if (vb2_is_busy(&vin->queue))
return -EBUSY;
ret = rvin_try_format(vin, V4L2_SUBDEV_FORMAT_ACTIVE, &f->fmt.pix,
&crop, &compose);
if (ret)
return ret;
vin->format = f->fmt.pix;
vin->crop = crop;
vin->compose = compose;
vin->source = crop;
return 0;
}
static int rvin_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct rvin_dev *vin = video_drvdata(file);
f->fmt.pix = vin->format;
return 0;
}
static int rvin_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
if (f->index >= ARRAY_SIZE(rvin_formats))
return -EINVAL;
f->pixelformat = rvin_formats[f->index].fourcc;
return 0;
}
static int rvin_g_selection(struct file *file, void *fh,
struct v4l2_selection *s)
{
struct rvin_dev *vin = video_drvdata(file);
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
switch (s->target) {
case V4L2_SEL_TGT_CROP_BOUNDS:
case V4L2_SEL_TGT_CROP_DEFAULT:
s->r.left = s->r.top = 0;
s->r.width = vin->source.width;
s->r.height = vin->source.height;
break;
case V4L2_SEL_TGT_CROP:
s->r = vin->crop;
break;
case V4L2_SEL_TGT_COMPOSE_BOUNDS:
case V4L2_SEL_TGT_COMPOSE_DEFAULT:
s->r.left = s->r.top = 0;
s->r.width = vin->format.width;
s->r.height = vin->format.height;
break;
case V4L2_SEL_TGT_COMPOSE:
s->r = vin->compose;
break;
default:
return -EINVAL;
}
return 0;
}
static int rvin_s_selection(struct file *file, void *fh,
struct v4l2_selection *s)
{
struct rvin_dev *vin = video_drvdata(file);
const struct rvin_video_format *fmt;
struct v4l2_rect r = s->r;
struct v4l2_rect max_rect;
struct v4l2_rect min_rect = {
.width = 6,
.height = 2,
};
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
v4l2_rect_set_min_size(&r, &min_rect);
switch (s->target) {
case V4L2_SEL_TGT_CROP:
/* Can't crop outside of source input */
max_rect.top = max_rect.left = 0;
max_rect.width = vin->source.width;
max_rect.height = vin->source.height;
v4l2_rect_map_inside(&r, &max_rect);
v4l_bound_align_image(&r.width, 6, vin->source.width, 0,
&r.height, 2, vin->source.height, 0, 0);
r.top = clamp_t(s32, r.top, 0, vin->source.height - r.height);
r.left = clamp_t(s32, r.left, 0, vin->source.width - r.width);
vin->crop = s->r = r;
vin_dbg(vin, "Cropped %dx%d@%d:%d of %dx%d\n",
r.width, r.height, r.left, r.top,
vin->source.width, vin->source.height);
break;
case V4L2_SEL_TGT_COMPOSE:
/* Make sure compose rect fits inside output format */
max_rect.top = max_rect.left = 0;
max_rect.width = vin->format.width;
max_rect.height = vin->format.height;
v4l2_rect_map_inside(&r, &max_rect);
/*
* Composing is done by adding a offset to the buffer address,
* the HW wants this address to be aligned to HW_BUFFER_MASK.
* Make sure the top and left values meets this requirement.
*/
while ((r.top * vin->format.bytesperline) & HW_BUFFER_MASK)
r.top--;
fmt = rvin_format_from_pixel(vin->format.pixelformat);
while ((r.left * fmt->bpp) & HW_BUFFER_MASK)
r.left--;
vin->compose = s->r = r;
vin_dbg(vin, "Compose %dx%d@%d:%d in %dx%d\n",
r.width, r.height, r.left, r.top,
vin->format.width, vin->format.height);
break;
default:
return -EINVAL;
}
/* HW supports modifying configuration while running */
rvin_crop_scale_comp(vin);
return 0;
}
static int rvin_g_pixelaspect(struct file *file, void *priv,
int type, struct v4l2_fract *f)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
return v4l2_subdev_call(sd, video, g_pixelaspect, f);
}
static int rvin_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int ret;
if (i->index != 0)
return -EINVAL;
ret = v4l2_subdev_call(sd, video, g_input_status, &i->status);
if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
return ret;
i->type = V4L2_INPUT_TYPE_CAMERA;
if (v4l2_subdev_has_op(sd, pad, dv_timings_cap)) {
i->capabilities = V4L2_IN_CAP_DV_TIMINGS;
i->std = 0;
} else {
i->capabilities = V4L2_IN_CAP_STD;
i->std = vin->vdev.tvnorms;
}
strscpy(i->name, "Camera", sizeof(i->name));
return 0;
}
static int rvin_g_input(struct file *file, void *priv, unsigned int *i)
{
*i = 0;
return 0;
}
static int rvin_s_input(struct file *file, void *priv, unsigned int i)
{
if (i > 0)
return -EINVAL;
return 0;
}
static int rvin_querystd(struct file *file, void *priv, v4l2_std_id *a)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
return v4l2_subdev_call(sd, video, querystd, a);
}
static int rvin_s_std(struct file *file, void *priv, v4l2_std_id a)
{
struct rvin_dev *vin = video_drvdata(file);
int ret;
ret = v4l2_subdev_call(vin_to_source(vin), video, s_std, a);
if (ret < 0)
return ret;
vin->std = a;
/* Changing the standard will change the width/height */
return rvin_reset_format(vin);
}
static int rvin_g_std(struct file *file, void *priv, v4l2_std_id *a)
{
struct rvin_dev *vin = video_drvdata(file);
if (v4l2_subdev_has_op(vin_to_source(vin), pad, dv_timings_cap))
return -ENOIOCTLCMD;
*a = vin->std;
return 0;
}
static int rvin_subscribe_event(struct v4l2_fh *fh,
const struct v4l2_event_subscription *sub)
{
switch (sub->type) {
case V4L2_EVENT_SOURCE_CHANGE:
return v4l2_event_subscribe(fh, sub, 4, NULL);
}
return v4l2_ctrl_subscribe_event(fh, sub);
}
static int rvin_enum_dv_timings(struct file *file, void *priv_fh,
struct v4l2_enum_dv_timings *timings)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int ret;
if (timings->pad)
return -EINVAL;
timings->pad = vin->parallel->sink_pad;
ret = v4l2_subdev_call(sd, pad, enum_dv_timings, timings);
timings->pad = 0;
return ret;
}
static int rvin_s_dv_timings(struct file *file, void *priv_fh,
struct v4l2_dv_timings *timings)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int ret;
ret = v4l2_subdev_call(sd, video, s_dv_timings, timings);
if (ret)
return ret;
/* Changing the timings will change the width/height */
return rvin_reset_format(vin);
}
static int rvin_g_dv_timings(struct file *file, void *priv_fh,
struct v4l2_dv_timings *timings)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
return v4l2_subdev_call(sd, video, g_dv_timings, timings);
}
static int rvin_query_dv_timings(struct file *file, void *priv_fh,
struct v4l2_dv_timings *timings)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
return v4l2_subdev_call(sd, video, query_dv_timings, timings);
}
static int rvin_dv_timings_cap(struct file *file, void *priv_fh,
struct v4l2_dv_timings_cap *cap)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int ret;
if (cap->pad)
return -EINVAL;
cap->pad = vin->parallel->sink_pad;
ret = v4l2_subdev_call(sd, pad, dv_timings_cap, cap);
cap->pad = 0;
return ret;
}
static int rvin_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int ret;
if (edid->pad)
return -EINVAL;
edid->pad = vin->parallel->sink_pad;
ret = v4l2_subdev_call(sd, pad, get_edid, edid);
edid->pad = 0;
return ret;
}
static int rvin_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int ret;
if (edid->pad)
return -EINVAL;
edid->pad = vin->parallel->sink_pad;
ret = v4l2_subdev_call(sd, pad, set_edid, edid);
edid->pad = 0;
return ret;
}
static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
.vidioc_querycap = rvin_querycap,
.vidioc_try_fmt_vid_cap = rvin_try_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = rvin_g_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = rvin_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_cap = rvin_enum_fmt_vid_cap,
.vidioc_g_selection = rvin_g_selection,
.vidioc_s_selection = rvin_s_selection,
.vidioc_g_pixelaspect = rvin_g_pixelaspect,
.vidioc_enum_input = rvin_enum_input,
.vidioc_g_input = rvin_g_input,
.vidioc_s_input = rvin_s_input,
.vidioc_dv_timings_cap = rvin_dv_timings_cap,
.vidioc_enum_dv_timings = rvin_enum_dv_timings,
.vidioc_g_dv_timings = rvin_g_dv_timings,
.vidioc_s_dv_timings = rvin_s_dv_timings,
.vidioc_query_dv_timings = rvin_query_dv_timings,
.vidioc_g_edid = rvin_g_edid,
.vidioc_s_edid = rvin_s_edid,
.vidioc_querystd = rvin_querystd,
.vidioc_g_std = rvin_g_std,
.vidioc_s_std = rvin_s_std,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = rvin_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
/* -----------------------------------------------------------------------------
* V4L2 Media Controller
*/
static void rvin_mc_try_format(struct rvin_dev *vin,
struct v4l2_pix_format *pix)
{
/*
* The V4L2 specification clearly documents the colorspace fields
* as being set by drivers for capture devices. Using the values
* supplied by userspace thus wouldn't comply with the API. Until
* the API is updated force fixed vaules.
*/
pix->colorspace = RVIN_DEFAULT_COLORSPACE;
pix->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix->colorspace);
pix->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix->colorspace);
pix->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true, pix->colorspace,
pix->ycbcr_enc);
rvin_format_align(vin, pix);
}
static int rvin_mc_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct rvin_dev *vin = video_drvdata(file);
rvin_mc_try_format(vin, &f->fmt.pix);
return 0;
}
static int rvin_mc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct rvin_dev *vin = video_drvdata(file);
if (vb2_is_busy(&vin->queue))
return -EBUSY;
rvin_mc_try_format(vin, &f->fmt.pix);
vin->format = f->fmt.pix;
vin->crop.top = 0;
vin->crop.left = 0;
vin->crop.width = vin->format.width;
vin->crop.height = vin->format.height;
vin->compose = vin->crop;
return 0;
}
static int rvin_mc_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
if (i->index != 0)
return -EINVAL;
i->type = V4L2_INPUT_TYPE_CAMERA;
strscpy(i->name, "Camera", sizeof(i->name));
return 0;
}
static const struct v4l2_ioctl_ops rvin_mc_ioctl_ops = {
.vidioc_querycap = rvin_querycap,
.vidioc_try_fmt_vid_cap = rvin_mc_try_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = rvin_g_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = rvin_mc_s_fmt_vid_cap,
.vidioc_enum_fmt_vid_cap = rvin_enum_fmt_vid_cap,
.vidioc_enum_input = rvin_mc_enum_input,
.vidioc_g_input = rvin_g_input,
.vidioc_s_input = rvin_s_input,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_expbuf = vb2_ioctl_expbuf,
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
.vidioc_streamon = vb2_ioctl_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = rvin_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
/* -----------------------------------------------------------------------------
* File Operations
*/
static int rvin_power_on(struct rvin_dev *vin)
{
int ret;
struct v4l2_subdev *sd = vin_to_source(vin);
pm_runtime_get_sync(vin->v4l2_dev.dev);
ret = v4l2_subdev_call(sd, core, s_power, 1);
if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV)
return ret;
return 0;
}
static int __video_try_fmt(struct camss_video *video, struct v4l2_format *f)
{
struct v4l2_pix_format_mplane *pix_mp;
const struct camss_format_info *fi;
struct v4l2_plane_pix_format *p;
u32 bytesperline[3] = { 0 };
u32 sizeimage[3] = { 0 };
u32 width, height;
u32 bpl, lines;
int i, j;
pix_mp = &f->fmt.pix_mp;
if (video->line_based)
for (i = 0; i < pix_mp->num_planes && i < 3; i++) {
p = &pix_mp->plane_fmt[i];
bytesperline[i] = clamp_t(u32, p->bytesperline,
1, 65528);
sizeimage[i] = clamp_t(u32, p->sizeimage,
bytesperline[i],
bytesperline[i] * 4096);
}
for (j = 0; j < video->nformats; j++)
if (pix_mp->pixelformat == video->formats[j].pixelformat)
break;
if (j == video->nformats)
j = 0; /* default format */
fi = &video->formats[j];
width = pix_mp->width;
height = pix_mp->height;
memset(pix_mp, 0, sizeof(*pix_mp));
pix_mp->pixelformat = fi->pixelformat;
pix_mp->width = clamp_t(u32, width, 1, 8191);
pix_mp->height = clamp_t(u32, height, 1, 8191);
pix_mp->num_planes = fi->planes;
for (i = 0; i < pix_mp->num_planes; i++) {
bpl = pix_mp->width / fi->hsub[i].numerator *
fi->hsub[i].denominator * fi->bpp[i] / 8;
bpl = ALIGN(bpl, video->bpl_alignment);
pix_mp->plane_fmt[i].bytesperline = bpl;
pix_mp->plane_fmt[i].sizeimage = pix_mp->height /
fi->vsub[i].numerator * fi->vsub[i].denominator * bpl;
}
pix_mp->field = V4L2_FIELD_NONE;
pix_mp->colorspace = V4L2_COLORSPACE_SRGB;
pix_mp->flags = 0;
pix_mp->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(pix_mp->colorspace);
pix_mp->quantization = V4L2_MAP_QUANTIZATION_DEFAULT(true,
pix_mp->colorspace, pix_mp->ycbcr_enc);
pix_mp->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(pix_mp->colorspace);
if (video->line_based)
for (i = 0; i < pix_mp->num_planes; i++) {
p = &pix_mp->plane_fmt[i];
p->bytesperline = clamp_t(u32, p->bytesperline,
1, 65528);
p->sizeimage = clamp_t(u32, p->sizeimage,
p->bytesperline,
p->bytesperline * 4096);
lines = p->sizeimage / p->bytesperline;
if (p->bytesperline < bytesperline[i])
p->bytesperline = ALIGN(bytesperline[i], 8);
if (p->sizeimage < p->bytesperline * lines)
p->sizeimage = p->bytesperline * lines;
if (p->sizeimage < sizeimage[i])
p->sizeimage = sizeimage[i];
}
return 0;
}