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[media] s5p-mfc: Flush DPB buffers during stream off 

Flushing of delay DPB buffers have to be done during stream off.
In MFC v6, it is done with a risc to host command.

Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Arun Mankuzhi <arun.m@samsung.com>
Acked-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Arun Kumar K 2012-11-22 06:15:55 -03:00 committed by Mauro Carvalho Chehab
parent 20fe1cf081
commit 8f23cc0222
4 changed files with 31 additions and 8 deletions
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6
drivers/media/platform/s5p-mfc/s5p_mfc.c
View File

@ -686,6 +686,12 @@ static irqreturn_t s5p_mfc_irq(int irq, void *priv)
s5p_mfc_handle_stream_complete(ctx, reason, err);
break;
case S5P_MFC_R2H_CMD_DPB_FLUSH_RET:
clear_work_bit(ctx);
ctx->state = MFCINST_RUNNING;
wake_up(&ctx->queue);
goto irq_cleanup_hw;
default:
mfc_debug(2, "Unknown int reason\n");
s5p_mfc_hw_call(dev->mfc_ops, clear_int_flags, dev);

1
drivers/media/platform/s5p-mfc/s5p_mfc_common.h
View File

@ -145,6 +145,7 @@ enum s5p_mfc_inst_state {
MFCINST_RETURN_INST,
MFCINST_ERROR,
MFCINST_ABORT,
MFCINST_FLUSH,
MFCINST_RES_CHANGE_INIT,
MFCINST_RES_CHANGE_FLUSH,
MFCINST_RES_CHANGE_END,

15
drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
View File

@ -991,24 +991,35 @@ static int s5p_mfc_stop_streaming(struct vb2_queue *q)
S5P_MFC_R2H_CMD_FRAME_DONE_RET, 0);
aborted = 1;
}
spin_lock_irqsave(&dev->irqlock, flags);
if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
spin_lock_irqsave(&dev->irqlock, flags);
s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->dst_queue,
&ctx->vq_dst);
INIT_LIST_HEAD(&ctx->dst_queue);
ctx->dst_queue_cnt = 0;
ctx->dpb_flush_flag = 1;
ctx->dec_dst_flag = 0;
spin_unlock_irqrestore(&dev->irqlock, flags);
if (IS_MFCV6(dev) && (ctx->state == MFCINST_RUNNING)) {
ctx->state = MFCINST_FLUSH;
set_work_bit_irqsave(ctx);
s5p_mfc_clean_ctx_int_flags(ctx);
s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
if (s5p_mfc_wait_for_done_ctx(ctx,
S5P_MFC_R2H_CMD_DPB_FLUSH_RET, 0))
mfc_err("Err flushing buffers\n");
}
}
if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
spin_lock_irqsave(&dev->irqlock, flags);
s5p_mfc_hw_call(dev->mfc_ops, cleanup_queue, &ctx->src_queue,
&ctx->vq_src);
INIT_LIST_HEAD(&ctx->src_queue);
ctx->src_queue_cnt = 0;
spin_unlock_irqrestore(&dev->irqlock, flags);
}
if (aborted)
ctx->state = MFCINST_RUNNING;
spin_unlock_irqrestore(&dev->irqlock, flags);
return 0;
}

17
drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c
View File

@ -1253,12 +1253,14 @@ int s5p_mfc_init_decode_v6(struct s5p_mfc_ctx *ctx)
static inline void s5p_mfc_set_flush(struct s5p_mfc_ctx *ctx, int flush)
{
struct s5p_mfc_dev *dev = ctx->dev;
unsigned int dpb;
if (flush)
dpb = READL(S5P_FIMV_SI_CH0_DPB_CONF_CTRL) | (1 << 14);
else
dpb = READL(S5P_FIMV_SI_CH0_DPB_CONF_CTRL) & ~(1 << 14);
WRITEL(dpb, S5P_FIMV_SI_CH0_DPB_CONF_CTRL);
if (flush) {
dev->curr_ctx = ctx->num;
s5p_mfc_clean_ctx_int_flags(ctx);
WRITEL(ctx->inst_no, S5P_FIMV_INSTANCE_ID_V6);
s5p_mfc_hw_call(dev->mfc_cmds, cmd_host2risc, dev,
S5P_FIMV_H2R_CMD_FLUSH_V6, NULL);
}
}
/* Decode a single frame */
@ -1650,6 +1652,9 @@ void s5p_mfc_try_run_v6(struct s5p_mfc_dev *dev)
case MFCINST_HEAD_PARSED:
ret = s5p_mfc_run_init_dec_buffers(ctx);
break;
case MFCINST_FLUSH:
s5p_mfc_set_flush(ctx, ctx->dpb_flush_flag);
break;
case MFCINST_RES_CHANGE_INIT:
s5p_mfc_run_dec_last_frames(ctx);
break;