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authorAndrzej Hajda <a.hajda@samsung.com>2012-08-21 08:05:32 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-10-02 13:58:04 -0300
commitf9f715a95d07d3868bb30aeb20252b6b05d35d8f (patch)
tree53a684372a77a28412e06ad66855a6f9c747f000 /drivers/media/platform/s5p-mfc
parent5565a2ad47cdd8e697a28137bd8379455667bc1c (diff)
[media] s5p-mfc: added support for end of stream handling in MFC encoder
s5p-mfc encoder after receiving V4L2_ENC_CMD_STOP command will instruct MFC device to release all encoded frames. After dequeuing last encoded frame driver will generate V4L2_EVENT_EOS event. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/s5p-mfc')
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc.c43
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_common.h5
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c6
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_dec.c4
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_enc.c106
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_opr.c48
6 files changed, 177 insertions, 35 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 9360d5771823..776e6bc241fc 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -19,6 +19,7 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/videodev2.h>
+#include <media/v4l2-event.h>
#include <linux/workqueue.h>
#include <media/videobuf2-core.h>
#include "regs-mfc.h"
@@ -539,6 +540,40 @@ static void s5p_mfc_handle_init_buffers(struct s5p_mfc_ctx *ctx,
}
}
+static void s5p_mfc_handle_stream_complete(struct s5p_mfc_ctx *ctx,
+ unsigned int reason, unsigned int err)
+{
+ struct s5p_mfc_dev *dev = ctx->dev;
+ struct s5p_mfc_buf *mb_entry;
+
+ mfc_debug(2, "Stream completed");
+
+ s5p_mfc_clear_int_flags(dev);
+ ctx->int_type = reason;
+ ctx->int_err = err;
+ ctx->state = MFCINST_FINISHED;
+
+ spin_lock(&dev->irqlock);
+ if (!list_empty(&ctx->dst_queue)) {
+ mb_entry = list_entry(ctx->dst_queue.next, struct s5p_mfc_buf,
+ list);
+ list_del(&mb_entry->list);
+ ctx->dst_queue_cnt--;
+ vb2_set_plane_payload(mb_entry->b, 0, 0);
+ vb2_buffer_done(mb_entry->b, VB2_BUF_STATE_DONE);
+ }
+ spin_unlock(&dev->irqlock);
+
+ clear_work_bit(ctx);
+
+ if (test_and_clear_bit(0, &dev->hw_lock) == 0)
+ WARN_ON(1);
+
+ s5p_mfc_clock_off();
+ wake_up(&ctx->queue);
+ s5p_mfc_try_run(dev);
+}
+
/* Interrupt processing */
static irqreturn_t s5p_mfc_irq(int irq, void *priv)
{
@@ -614,6 +649,11 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
case S5P_FIMV_R2H_CMD_INIT_BUFFERS_RET:
s5p_mfc_handle_init_buffers(ctx, reason, err);
break;
+
+ case S5P_FIMV_R2H_CMD_ENC_COMPLETE_RET:
+ s5p_mfc_handle_stream_complete(ctx, reason, err);
+ break;
+
default:
mfc_debug(2, "Unknown int reason\n");
s5p_mfc_clear_int_flags(dev);
@@ -889,9 +929,12 @@ static unsigned int s5p_mfc_poll(struct file *file,
goto end;
}
mutex_unlock(&dev->mfc_mutex);
+ poll_wait(file, &ctx->fh.wait, wait);
poll_wait(file, &src_q->done_wq, wait);
poll_wait(file, &dst_q->done_wq, wait);
mutex_lock(&dev->mfc_mutex);
+ if (v4l2_event_pending(&ctx->fh))
+ rc |= POLLPRI;
spin_lock_irqsave(&src_q->done_lock, flags);
if (!list_empty(&src_q->done_list))
src_vb = list_first_entry(&src_q->done_list, struct vb2_buffer,
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
index bd5706a6bad1..8871f0de6efd 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
@@ -146,6 +146,9 @@ enum s5p_mfc_decode_arg {
MFC_DEC_RES_CHANGE,
};
+#define MFC_BUF_FLAG_USED (1 << 0)
+#define MFC_BUF_FLAG_EOS (1 << 1)
+
struct s5p_mfc_ctx;
/**
@@ -161,7 +164,7 @@ struct s5p_mfc_buf {
} raw;
size_t stream;
} cookie;
- int used;
+ int flags;
};
/**
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
index 992303d76b11..0deba6bc687c 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
@@ -98,7 +98,11 @@ int s5p_mfc_alloc_and_load_firmware(struct s5p_mfc_dev *dev)
release_firmware(fw_blob);
return -EIO;
}
- dev->bank2 = bank2_base_phys;
+ /* Valid buffers passed to MFC encoder with LAST_FRAME command
+ * should not have address of bank2 - MFC will treat it as a null frame.
+ * To avoid such situation we set bank2 address below the pool address.
+ */
+ dev->bank2 = bank2_base_phys - (1 << MFC_BASE_ALIGN_ORDER);
memcpy(s5p_mfc_bitproc_virt, fw_blob->data, fw_blob->size);
wmb();
release_firmware(fw_blob);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
index 456f5df6b179..aef83d13182c 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
@@ -936,14 +936,14 @@ static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
mfc_buf = &ctx->src_bufs[vb->v4l2_buf.index];
- mfc_buf->used = 0;
+ mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
spin_lock_irqsave(&dev->irqlock, flags);
list_add_tail(&mfc_buf->list, &ctx->src_queue);
ctx->src_queue_cnt++;
spin_unlock_irqrestore(&dev->irqlock, flags);
} else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
mfc_buf = &ctx->dst_bufs[vb->v4l2_buf.index];
- mfc_buf->used = 0;
+ mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
/* Mark destination as available for use by MFC */
spin_lock_irqsave(&dev->irqlock, flags);
set_bit(vb->v4l2_buf.index, &ctx->dec_dst_flag);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
index fdeebb031b45..075cc5c5f9bc 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
@@ -21,6 +21,7 @@
#include <linux/sched.h>
#include <linux/version.h>
#include <linux/videodev2.h>
+#include <media/v4l2-event.h>
#include <linux/workqueue.h>
#include <media/v4l2-ctrls.h>
#include <media/videobuf2-core.h>
@@ -576,9 +577,9 @@ static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
if (ctx->state == MFCINST_RUNNING &&
ctx->src_queue_cnt >= 1 && ctx->dst_queue_cnt >= 1)
return 1;
- /* context is ready to encode remain frames */
+ /* context is ready to encode remaining frames */
if (ctx->state == MFCINST_FINISHING &&
- ctx->src_queue_cnt >= 1 && ctx->dst_queue_cnt >= 1)
+ ctx->dst_queue_cnt >= 1)
return 1;
mfc_debug(2, "ctx is not ready\n");
return 0;
@@ -724,7 +725,7 @@ static int enc_post_frame_start(struct s5p_mfc_ctx *ctx)
if ((ctx->src_queue_cnt > 0) && (ctx->state == MFCINST_RUNNING)) {
mb_entry = list_entry(ctx->src_queue.next, struct s5p_mfc_buf,
list);
- if (mb_entry->used) {
+ if (mb_entry->flags & MFC_BUF_FLAG_USED) {
list_del(&mb_entry->list);
ctx->src_queue_cnt--;
list_add_tail(&mb_entry->list, &ctx->ref_queue);
@@ -1119,27 +1120,43 @@ static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
mfc_err("Call on QBUF after unrecoverable error\n");
return -EIO;
}
- if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ if (ctx->state == MFCINST_FINISHING) {
+ mfc_err("Call on QBUF after EOS command\n");
+ return -EIO;
+ }
return vb2_qbuf(&ctx->vq_src, buf);
- else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ } else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
return vb2_qbuf(&ctx->vq_dst, buf);
+ }
return -EINVAL;
}
/* Dequeue a buffer */
static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
{
+ const struct v4l2_event ev = {
+ .type = V4L2_EVENT_EOS
+ };
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ int ret;
if (ctx->state == MFCINST_ERROR) {
mfc_err("Call on DQBUF after unrecoverable error\n");
return -EIO;
}
- if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
- return vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
- else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
- return vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
- return -EINVAL;
+ if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ ret = vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
+ } else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ ret = vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
+ if (ret == 0 && ctx->state == MFCINST_FINISHED
+ && list_empty(&ctx->vq_dst.done_list))
+ v4l2_event_queue_fh(&ctx->fh, &ev);
+ } else {
+ ret = -EINVAL;
+ }
+
+ return ret;
}
/* Stream on */
@@ -1471,6 +1488,57 @@ static int vidioc_g_parm(struct file *file, void *priv,
return 0;
}
+int vidioc_encoder_cmd(struct file *file, void *priv,
+ struct v4l2_encoder_cmd *cmd)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+ struct s5p_mfc_buf *buf;
+ unsigned long flags;
+
+ switch (cmd->cmd) {
+ case V4L2_ENC_CMD_STOP:
+ if (cmd->flags != 0)
+ return -EINVAL;
+
+ if (!ctx->vq_src.streaming)
+ return -EINVAL;
+
+ spin_lock_irqsave(&dev->irqlock, flags);
+ if (list_empty(&ctx->src_queue)) {
+ mfc_debug(2, "EOS: empty src queue, entering finishing state");
+ ctx->state = MFCINST_FINISHING;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+ s5p_mfc_try_run(dev);
+ } else {
+ mfc_debug(2, "EOS: marking last buffer of stream");
+ buf = list_entry(ctx->src_queue.prev,
+ struct s5p_mfc_buf, list);
+ if (buf->flags & MFC_BUF_FLAG_USED)
+ ctx->state = MFCINST_FINISHING;
+ else
+ buf->flags |= MFC_BUF_FLAG_EOS;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+ }
+ break;
+ default:
+ return -EINVAL;
+
+ }
+ return 0;
+}
+
+static int vidioc_subscribe_event(struct v4l2_fh *fh,
+ struct v4l2_event_subscription *sub)
+{
+ switch (sub->type) {
+ case V4L2_EVENT_EOS:
+ return v4l2_event_subscribe(fh, sub, 2, NULL);
+ default:
+ return -EINVAL;
+ }
+}
+
static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
@@ -1491,6 +1559,9 @@ static const struct v4l2_ioctl_ops s5p_mfc_enc_ioctl_ops = {
.vidioc_streamoff = vidioc_streamoff,
.vidioc_s_parm = vidioc_s_parm,
.vidioc_g_parm = vidioc_g_parm,
+ .vidioc_encoder_cmd = vidioc_encoder_cmd,
+ .vidioc_subscribe_event = vidioc_subscribe_event,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
static int check_vb_with_fmt(struct s5p_mfc_fmt *fmt, struct vb2_buffer *vb)
@@ -1706,7 +1777,7 @@ static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
}
if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
mfc_buf = &ctx->dst_bufs[vb->v4l2_buf.index];
- mfc_buf->used = 0;
+ mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
/* Mark destination as available for use by MFC */
spin_lock_irqsave(&dev->irqlock, flags);
list_add_tail(&mfc_buf->list, &ctx->dst_queue);
@@ -1714,17 +1785,10 @@ static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
spin_unlock_irqrestore(&dev->irqlock, flags);
} else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
mfc_buf = &ctx->src_bufs[vb->v4l2_buf.index];
- mfc_buf->used = 0;
+ mfc_buf->flags &= ~MFC_BUF_FLAG_USED;
spin_lock_irqsave(&dev->irqlock, flags);
- if (vb->v4l2_planes[0].bytesused == 0) {
- mfc_debug(1, "change state to FINISHING\n");
- ctx->state = MFCINST_FINISHING;
- vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
- cleanup_ref_queue(ctx);
- } else {
- list_add_tail(&mfc_buf->list, &ctx->src_queue);
- ctx->src_queue_cnt++;
- }
+ list_add_tail(&mfc_buf->list, &ctx->src_queue);
+ ctx->src_queue_cnt++;
spin_unlock_irqrestore(&dev->irqlock, flags);
} else {
mfc_err("unsupported buffer type (%d)\n", vq->type);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
index b5fd3d4d5a7b..767a51271dc2 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c
@@ -1075,14 +1075,21 @@ int s5p_mfc_init_encode(struct s5p_mfc_ctx *ctx)
int s5p_mfc_encode_one_frame(struct s5p_mfc_ctx *ctx)
{
struct s5p_mfc_dev *dev = ctx->dev;
+ int cmd;
/* memory structure cur. frame */
if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_NV12M)
mfc_write(dev, 0, S5P_FIMV_ENC_MAP_FOR_CUR);
else if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_NV12MT)
mfc_write(dev, 3, S5P_FIMV_ENC_MAP_FOR_CUR);
s5p_mfc_set_shared_buffer(ctx);
- mfc_write(dev, (S5P_FIMV_CH_FRAME_START << 16 & 0x70000) |
- (ctx->inst_no), S5P_FIMV_SI_CH0_INST_ID);
+
+ if (ctx->state == MFCINST_FINISHING)
+ cmd = S5P_FIMV_CH_LAST_FRAME;
+ else
+ cmd = S5P_FIMV_CH_FRAME_START;
+ mfc_write(dev, ((cmd & S5P_FIMV_CH_MASK) << S5P_FIMV_CH_SHIFT)
+ | (ctx->inst_no), S5P_FIMV_SI_CH0_INST_ID);
+
return 0;
}
@@ -1133,7 +1140,7 @@ static int s5p_mfc_run_dec_frame(struct s5p_mfc_ctx *ctx, int last_frame)
}
/* Get the next source buffer */
temp_vb = list_entry(ctx->src_queue.next, struct s5p_mfc_buf, list);
- temp_vb->used = 1;
+ temp_vb->flags |= MFC_BUF_FLAG_USED;
s5p_mfc_set_dec_stream_buffer(ctx,
vb2_dma_contig_plane_dma_addr(temp_vb->b, 0), ctx->consumed_stream,
temp_vb->b->v4l2_planes[0].bytesused);
@@ -1160,7 +1167,7 @@ static int s5p_mfc_run_enc_frame(struct s5p_mfc_ctx *ctx)
unsigned int dst_size;
spin_lock_irqsave(&dev->irqlock, flags);
- if (list_empty(&ctx->src_queue)) {
+ if (list_empty(&ctx->src_queue) && ctx->state != MFCINST_FINISHING) {
mfc_debug(2, "no src buffers\n");
spin_unlock_irqrestore(&dev->irqlock, flags);
return -EAGAIN;
@@ -1170,19 +1177,40 @@ static int s5p_mfc_run_enc_frame(struct s5p_mfc_ctx *ctx)
spin_unlock_irqrestore(&dev->irqlock, flags);
return -EAGAIN;
}
- src_mb = list_entry(ctx->src_queue.next, struct s5p_mfc_buf, list);
- src_mb->used = 1;
- src_y_addr = vb2_dma_contig_plane_dma_addr(src_mb->b, 0);
- src_c_addr = vb2_dma_contig_plane_dma_addr(src_mb->b, 1);
- s5p_mfc_set_enc_frame_buffer(ctx, src_y_addr, src_c_addr);
+ if (list_empty(&ctx->src_queue)) {
+ /* send null frame */
+ s5p_mfc_set_enc_frame_buffer(ctx, dev->bank2, dev->bank2);
+ src_mb = NULL;
+ } else {
+ src_mb = list_entry(ctx->src_queue.next, struct s5p_mfc_buf,
+ list);
+ src_mb->flags |= MFC_BUF_FLAG_USED;
+ if (src_mb->b->v4l2_planes[0].bytesused == 0) {
+ /* send null frame */
+ s5p_mfc_set_enc_frame_buffer(ctx, dev->bank2,
+ dev->bank2);
+ ctx->state = MFCINST_FINISHING;
+ } else {
+ src_y_addr = vb2_dma_contig_plane_dma_addr(src_mb->b,
+ 0);
+ src_c_addr = vb2_dma_contig_plane_dma_addr(src_mb->b,
+ 1);
+ s5p_mfc_set_enc_frame_buffer(ctx, src_y_addr,
+ src_c_addr);
+ if (src_mb->flags & MFC_BUF_FLAG_EOS)
+ ctx->state = MFCINST_FINISHING;
+ }
+ }
dst_mb = list_entry(ctx->dst_queue.next, struct s5p_mfc_buf, list);
- dst_mb->used = 1;
+ dst_mb->flags |= MFC_BUF_FLAG_USED;
dst_addr = vb2_dma_contig_plane_dma_addr(dst_mb->b, 0);
dst_size = vb2_plane_size(dst_mb->b, 0);
s5p_mfc_set_enc_stream_buffer(ctx, dst_addr, dst_size);
spin_unlock_irqrestore(&dev->irqlock, flags);
dev->curr_ctx = ctx->num;
s5p_mfc_clean_ctx_int_flags(ctx);
+ mfc_debug(2, "encoding buffer with index=%d state=%d",
+ src_mb ? src_mb->b->v4l2_buf.index : -1, ctx->state);
s5p_mfc_encode_one_frame(ctx);
return 0;
}

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