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[media] media: ti-vpe: vpe: Add proper support single and multi-plane buffer 

The VPE was restricting the number of plane per buffer based on
the fact that if a particular format had color separation it was
meant to need 2 planes.

However NV12/NV16 are color separate format which are meant to be
presented in a single contiguous buffer/plane.
It could also be presented in a multi-plane as well if need be.
So we must support both modes for more flexibility.

The number of plane requested by user space was previously ignored
and was therefore always overwritten.
The driver now use the requested num plane as hint to calculate needed
offset when required.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
zero-colors
Benoit Parrot 2016-11-18 21:20:45 -02:00 committed by Mauro Carvalho Chehab
parent 3ce0f30f8e
commit ed1f47cc69
1 changed files with 48 additions and 10 deletions
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58
drivers/media/platform/ti-vpe/vpe.c
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@ -327,6 +327,7 @@ static struct vpe_fmt vpe_formats[] = {
struct vpe_q_data {
unsigned int width; /* frame width */
unsigned int height; /* frame height */
unsigned int nplanes; /* Current number of planes */
unsigned int bytesperline[VPE_MAX_PLANES]; /* bytes per line in memory */
enum v4l2_colorspace colorspace;
enum v4l2_field field; /* supported field value */
@ -1042,6 +1043,7 @@ static void add_out_dtd(struct vpe_ctx *ctx, int port)
int mv_buf_selector = !ctx->src_mv_buf_selector;
dma_addr_t dma_addr;
u32 flags = 0;
u32 offset = 0;
if (port == VPE_PORT_MV_OUT) {
vpdma_fmt = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV];
@ -1052,13 +1054,27 @@ static void add_out_dtd(struct vpe_ctx *ctx, int port)
int plane = fmt->coplanar ? p_data->vb_part : 0;
vpdma_fmt = fmt->vpdma_fmt[plane];
dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
/*
* If we are using a single plane buffer and
* we need to set a separate vpdma chroma channel.
*/
if (q_data->nplanes == 1 && plane) {
dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
/* Compute required offset */
offset = q_data->bytesperline[0] * q_data->height;
} else {
dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
/* Use address as is, no offset */
offset = 0;
}
if (!dma_addr) {
vpe_err(ctx->dev,
"acquiring output buffer(%d) dma_addr failed\n",
port);
return;
}
/* Apply the offset */
dma_addr += offset;
}
if (q_data->flags & Q_DATA_FRAME_1D)
@ -1087,6 +1103,7 @@ static void add_in_dtd(struct vpe_ctx *ctx, int port)
int frame_width, frame_height;
dma_addr_t dma_addr;
u32 flags = 0;
u32 offset = 0;
if (port == VPE_PORT_MV_IN) {
vpdma_fmt = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV];
@ -1096,14 +1113,27 @@ static void add_in_dtd(struct vpe_ctx *ctx, int port)
int plane = fmt->coplanar ? p_data->vb_part : 0;
vpdma_fmt = fmt->vpdma_fmt[plane];
dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
/*
* If we are using a single plane buffer and
* we need to set a separate vpdma chroma channel.
*/
if (q_data->nplanes == 1 && plane) {
dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
/* Compute required offset */
offset = q_data->bytesperline[0] * q_data->height;
} else {
dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
/* Use address as is, no offset */
offset = 0;
}
if (!dma_addr) {
vpe_err(ctx->dev,
"acquiring input buffer(%d) dma_addr failed\n",
"acquiring output buffer(%d) dma_addr failed\n",
port);
return;
}
/* Apply the offset */
dma_addr += offset;
if (q_data->flags & Q_DATA_INTERLACED_SEQ_TB) {
/*
@ -1548,7 +1578,7 @@ static int vpe_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
pix->colorspace = s_q_data->colorspace;
}
pix->num_planes = q_data->fmt->coplanar ? 2 : 1;
pix->num_planes = q_data->nplanes;
for (i = 0; i < pix->num_planes; i++) {
pix->plane_fmt[i].bytesperline = q_data->bytesperline[i];
@ -1604,7 +1634,11 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
&pix->height, MIN_H, MAX_H, H_ALIGN,
S_ALIGN);
pix->num_planes = fmt->coplanar ? 2 : 1;
if (!pix->num_planes)
pix->num_planes = fmt->coplanar ? 2 : 1;
else if (pix->num_planes > 1 && !fmt->coplanar)
pix->num_planes = 1;
pix->pixelformat = fmt->fourcc;
/*
@ -1640,6 +1674,8 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
else
plane_fmt->bytesperline = pix->width;
if (pix->num_planes == 1 && fmt->coplanar)
depth += fmt->vpdma_fmt[VPE_CHROMA]->depth;
plane_fmt->sizeimage =
(pix->height * pix->width * depth) >> 3;
@ -1686,6 +1722,7 @@ static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f)
q_data->height = pix->height;
q_data->colorspace = pix->colorspace;
q_data->field = pix->field;
q_data->nplanes = pix->num_planes;
for (i = 0; i < pix->num_planes; i++) {
plane_fmt = &pix->plane_fmt[i];
@ -1713,7 +1750,7 @@ static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f)
vpe_dbg(ctx->dev, "Setting format for type %d, wxh: %dx%d, fmt: %d bpl_y %d",
f->type, q_data->width, q_data->height, q_data->fmt->fourcc,
q_data->bytesperline[VPE_LUMA]);
if (q_data->fmt->coplanar)
if (q_data->nplanes == 2)
vpe_dbg(ctx->dev, " bpl_uv %d\n",
q_data->bytesperline[VPE_CHROMA]);
@ -1965,14 +2002,14 @@ static int vpe_queue_setup(struct vb2_queue *vq,
q_data = get_q_data(ctx, vq->type);
*nplanes = q_data->fmt->coplanar ? 2 : 1;
*nplanes = q_data->nplanes;
for (i = 0; i < *nplanes; i++)
sizes[i] = q_data->sizeimage[i];
vpe_dbg(ctx->dev, "get %d buffer(s) of size %d", *nbuffers,
sizes[VPE_LUMA]);
if (q_data->fmt->coplanar)
if (q_data->nplanes == 2)
vpe_dbg(ctx->dev, " and %d\n", sizes[VPE_CHROMA]);
return 0;
@ -1988,7 +2025,7 @@ static int vpe_buf_prepare(struct vb2_buffer *vb)
vpe_dbg(ctx->dev, "type: %d\n", vb->vb2_queue->type);
q_data = get_q_data(ctx, vb->vb2_queue->type);
num_planes = q_data->fmt->coplanar ? 2 : 1;
num_planes = q_data->nplanes;
if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
if (!(q_data->flags & Q_IS_INTERLACED)) {
@ -2248,6 +2285,7 @@ static int vpe_open(struct file *file)
s_q_data->fmt = &vpe_formats[2];
s_q_data->width = 1920;
s_q_data->height = 1080;
s_q_data->nplanes = 1;
s_q_data->bytesperline[VPE_LUMA] = (s_q_data->width *
s_q_data->fmt->vpdma_fmt[VPE_LUMA]->depth) >> 3;
s_q_data->sizeimage[VPE_LUMA] = (s_q_data->bytesperline[VPE_LUMA] *