The video source can generate the data in the SEQ_TB buffer format.
In the case of TI SoC, the IVA_HD can generate the interlaced content in
the SEQ_TB buffer format. This is the format where the top and bottom field
data can be contained in a single buffer. For example, for NV12, interlaced
format, the data in Y buffer will be arranged as Y-top followed by Y-bottom.
And likewise for UV plane.
Also, queueing one buffer of SEQ_TB is euivalent to queueing two different
buffers for top and bottom fields. Driver needs to take care of this when
handling source buffer lists.
Signed-off-by: Nikhil Devshatwar <nikhil.nd@xxxxxx>
---
Changes from v1:
* Add check for valid field in qbuf ioctl
* Fix issue with swapped fields
drivers/media/platform/ti-vpe/vpe.c | 124 ++++++++++++++++++++++++++++-------
1 file changed, 102 insertions(+), 22 deletions(-)
diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 6a96bbf..b53aea5 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -319,9 +319,13 @@ struct vpe_q_data {
};
/* vpe_q_data flag bits */
-#define Q_DATA_FRAME_1D (1 << 0)
-#define Q_DATA_MODE_TILED (1 << 1)
-#define Q_DATA_INTERLACED (1 << 2)
+#define Q_DATA_FRAME_1D (1 << 0)
+#define Q_DATA_MODE_TILED (1 << 1)
+#define Q_DATA_INTERLACED_ALTERNATE (1 << 2)
+#define Q_DATA_INTERLACED_SEQ_TB (1 << 3)
+
+#define Q_IS_INTERLACED (Q_DATA_INTERLACED_ALTERNATE | \
+ Q_DATA_INTERLACED_SEQ_TB)
enum {
Q_DATA_SRC = 0,
@@ -647,7 +651,7 @@ static void set_us_coefficients(struct vpe_ctx *ctx)
cp = &us_coeffs[0].anchor_fid0_c0;
- if (s_q_data->flags & Q_DATA_INTERLACED) /* interlaced */
+ if (s_q_data->flags & Q_IS_INTERLACED) /* interlaced */
cp += sizeof(us_coeffs[0]) / sizeof(*cp);
end_cp = cp + sizeof(us_coeffs[0]) / sizeof(*cp);
@@ -774,8 +778,7 @@ static void set_dei_regs(struct vpe_ctx *ctx)
* for both progressive and interlace content in interlace bypass mode.
* It has been recommended not to use progressive bypass mode.
*/
- if ((!ctx->deinterlacing && (s_q_data->flags & Q_DATA_INTERLACED)) ||
- !(s_q_data->flags & Q_DATA_INTERLACED)) {
+ if (!(s_q_data->flags & Q_IS_INTERLACED) || !ctx->deinterlacing) {
deinterlace = false;
val = VPE_DEI_INTERLACE_BYPASS;
}
@@ -843,8 +846,8 @@ static int set_srcdst_params(struct vpe_ctx *ctx)
ctx->sequence = 0;
ctx->field = V4L2_FIELD_TOP;
- if ((s_q_data->flags & Q_DATA_INTERLACED) &&
- !(d_q_data->flags & Q_DATA_INTERLACED)) {
+ if ((s_q_data->flags & Q_IS_INTERLACED) &&
+ !(d_q_data->flags & Q_IS_INTERLACED)) {
int bytes_per_line;
const struct vpdma_data_format *mv =
&vpdma_misc_fmts[VPDMA_DATA_FMT_MV];
@@ -1068,6 +1071,27 @@ static void add_in_dtd(struct vpe_ctx *ctx, int port)
vpdma_fmt = fmt->vpdma_fmt[plane];
dma_addr = vb2_dma_addr_plus_data_offset(vb, plane);
+
+ if (q_data->flags & Q_DATA_INTERLACED_SEQ_TB) {
+ /*
+ * Use top or bottom field from same vb alternately
+ * f,f-1,f-2 = TBT when seq is even
+ * f,f-1,f-2 = BTB when seq is odd
+ */
+ field = (p_data->vb_index + (ctx->sequence % 2)) % 2;
+
+ if (field) {
+ /* bottom field of a SEQ_TB buffer
+ * Skip the top field data by */
+ int height = q_data->height / 2;
+ int bpp = fmt->fourcc == V4L2_PIX_FMT_NV12 ?
+ 1 : (vpdma_fmt->depth >> 3);
+ if (plane)
+ height /= 2;
+ dma_addr += q_data->width * height * bpp;
+ }
+ }
+
if (!dma_addr) {
vpe_err(ctx->dev,
"acquiring input buffer(%d) dma_addr failed\n",
@@ -1122,9 +1146,22 @@ static void device_run(void *priv)
struct vpe_ctx *ctx = priv;
struct sc_data *sc = ctx->dev->sc;
struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST];
+ struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC];
+
+ if (ctx->deinterlacing && s_q_data->flags & Q_DATA_INTERLACED_SEQ_TB &&
+ ctx->sequence % 2 == 0) {
+ /* When using SEQ_TB buffers, When using it first time,
+ * No need to remove the buffer as the next field is present
+ * in the same buffer. (so that job_ready won't fail)
+ * It will be removed when using bottom field
+ */
+ ctx->src_vbs[0] = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ WARN_ON(ctx->src_vbs[0] == NULL);
+ } else {
+ ctx->src_vbs[0] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ WARN_ON(ctx->src_vbs[0] == NULL);
+ }
- ctx->src_vbs[0] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
- WARN_ON(ctx->src_vbs[0] == NULL);
ctx->dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
WARN_ON(ctx->dst_vb == NULL);
@@ -1256,6 +1293,7 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
struct vpe_dev *dev = (struct vpe_dev *)data;
struct vpe_ctx *ctx;
struct vpe_q_data *d_q_data;
+ struct vpe_q_data *s_q_data;
struct vb2_buffer *s_vb, *d_vb;
struct v4l2_buffer *s_buf, *d_buf;
unsigned long flags;
@@ -1332,7 +1370,7 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
d_buf->sequence = ctx->sequence;
d_q_data = &ctx->q_data[Q_DATA_DST];
- if (d_q_data->flags & Q_DATA_INTERLACED) {
+ if (d_q_data->flags & Q_IS_INTERLACED) {
d_buf->field = ctx->field;
if (ctx->field == V4L2_FIELD_BOTTOM) {
ctx->sequence++;
@@ -1346,12 +1384,28 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
ctx->sequence++;
}
- if (ctx->deinterlacing)
- s_vb = ctx->src_vbs[2];
+ s_q_data = &ctx->q_data[Q_DATA_SRC];
+
+ if (ctx->deinterlacing) {
+ /* Allow source buffer to be dequeued only if it won't be used
+ * in the next iteration. All vbs are initialized to first
+ * buffer and we are shifting buffers every iteration, for the
+ * first two iterations, no buffer will be dequeued.
+ * This ensures that driver will keep (n-2)th (n-1)th and (n)th
+ * field when deinterlacing is enabled */
+ if (ctx->src_vbs[2] != ctx->src_vbs[1])
+ s_vb = ctx->src_vbs[2];
+ else
+ s_vb = NULL;
+ }
spin_lock_irqsave(&dev->lock, flags);
- v4l2_m2m_buf_done(s_vb, VB2_BUF_STATE_DONE);
+
+ if (s_vb)
+ v4l2_m2m_buf_done(s_vb, VB2_BUF_STATE_DONE);
+
v4l2_m2m_buf_done(d_vb, VB2_BUF_STATE_DONE);
+
spin_unlock_irqrestore(&dev->lock, flags);
if (ctx->deinterlacing) {
@@ -1467,7 +1521,7 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
struct v4l2_plane_pix_format *plane_fmt;
unsigned int w_align;
- int i, depth, depth_bytes;
+ int i, depth, depth_bytes, height;
if (!fmt || !(fmt->types & type)) {
vpe_err(ctx->dev, "Fourcc format (0x%08x) invalid.\n",
@@ -1475,7 +1529,8 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
return -EINVAL;
}
- if (pix->field != V4L2_FIELD_NONE && pix->field != V4L2_FIELD_ALTERNATE)
+ if (pix->field != V4L2_FIELD_NONE && pix->field != V4L2_FIELD_ALTERNATE
+ && pix->field != V4L2_FIELD_SEQ_TB)
pix->field = V4L2_FIELD_NONE;
depth = fmt->vpdma_fmt[VPE_LUMA]->depth;
@@ -1509,6 +1564,14 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
pix->num_planes = fmt->coplanar ? 2 : 1;
pix->pixelformat = fmt->fourcc;
+ /* for the actual image parameters, we need to consider the field height
+ * of the image for SEQ_TB buffers.
+ */
+ if (pix->field == V4L2_FIELD_SEQ_TB)
+ height = pix->height / 2;
+ else
+ height = pix->height;
+
if (!pix->colorspace) {
if (fmt->fourcc == V4L2_PIX_FMT_RGB24 ||
fmt->fourcc == V4L2_PIX_FMT_BGR24 ||
@@ -1516,7 +1579,7 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
fmt->fourcc == V4L2_PIX_FMT_BGR32) {
pix->colorspace = V4L2_COLORSPACE_SRGB;
} else {
- if (pix->height > 1280) /* HD */
+ if (height > 1280) /* HD */
pix->colorspace = V4L2_COLORSPACE_REC709;
else /* SD */
pix->colorspace = V4L2_COLORSPACE_SMPTE170M;
@@ -1593,9 +1656,15 @@ static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f)
q_data->c_rect.height = q_data->height;
if (q_data->field == V4L2_FIELD_ALTERNATE)
- q_data->flags |= Q_DATA_INTERLACED;
+ q_data->flags |= Q_DATA_INTERLACED_ALTERNATE;
+ else if (q_data->field == V4L2_FIELD_SEQ_TB)
+ q_data->flags |= Q_DATA_INTERLACED_SEQ_TB;
else
- q_data->flags &= ~Q_DATA_INTERLACED;
+ q_data->flags &= ~Q_IS_INTERLACED;
+
+ /* the crop height is halved for the case of SEQ_TB buffers */
+ if (q_data->flags & Q_DATA_INTERLACED_SEQ_TB)
+ q_data->c_rect.height /= 2;
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,
@@ -1631,6 +1700,7 @@ static int vpe_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
static int __vpe_try_selection(struct vpe_ctx *ctx, struct v4l2_selection *s)
{
struct vpe_q_data *q_data;
+ int height;
if ((s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
(s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT))
@@ -1665,13 +1735,22 @@ static int __vpe_try_selection(struct vpe_ctx *ctx, struct v4l2_selection *s)
return -EINVAL;
}
+ /*
+ * For SEQ_TB buffers, crop height should be less than the height of
+ * the field height, not the buffer height
+ */
+ if (q_data->flags & Q_DATA_INTERLACED_SEQ_TB)
+ height = q_data->height / 2;
+ else
+ height = q_data->height;
+
if (s->r.top < 0 || s->r.left < 0) {
vpe_err(ctx->dev, "negative values for top and left\n");
s->r.top = s->r.left = 0;
}
v4l_bound_align_image(&s->r.width, MIN_W, q_data->width, 1,
- &s->r.height, MIN_H, q_data->height, H_ALIGN, S_ALIGN);
+ &s->r.height, MIN_H, height, H_ALIGN, S_ALIGN);
/* adjust left/top if cropping rectangle is out of bounds */
if (s->r.left + s->r.width > q_data->width)
@@ -1919,11 +1998,12 @@ static int vpe_buf_prepare(struct vb2_buffer *vb)
num_planes = q_data->fmt->coplanar ? 2 : 1;
if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
- if (!(q_data->flags & Q_DATA_INTERLACED)) {
+ if (!(q_data->flags & Q_IS_INTERLACED)) {
vb->v4l2_buf.field = V4L2_FIELD_NONE;
} else {
if (vb->v4l2_buf.field != V4L2_FIELD_TOP &&
- vb->v4l2_buf.field != V4L2_FIELD_BOTTOM)
+ vb->v4l2_buf.field != V4L2_FIELD_BOTTOM &&
+ vb->v4l2_buf.field != V4L2_FIELD_SEQ_TB)
return -EINVAL;
}
}
--
1.7.9.5
--
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