From a22496c6628406ff7610721b6279a68a9325df63 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 23 Jan 2015 13:51:33 -0300 Subject: [PATCH] [media] coda: add support for contexts that do not use the BIT processor In preparation for CODA9 JPEG support, allow contexts that control hardware units directly, without the BIT processor. Signed-off-by: Philipp Zabel Signed-off-by: Kamil Debski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-common.c | 42 +++++++++++++---------- drivers/media/platform/coda/coda.h | 1 + 2 files changed, 24 insertions(+), 19 deletions(-) diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 35a42c56dd60..9abb3214de52 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -181,6 +181,7 @@ struct coda_video_device { const char *name; enum coda_inst_type type; const struct coda_context_ops *ops; + bool direct; u32 src_formats[CODA_MAX_FORMATS]; u32 dst_formats[CODA_MAX_FORMATS]; }; @@ -953,7 +954,7 @@ static int coda_job_ready(void *m2m_priv) return 0; } - if (ctx->inst_type == CODA_INST_DECODER) { + if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) { struct list_head *meta; bool stream_end; int num_metas; @@ -1161,7 +1162,7 @@ static void coda_buf_queue(struct vb2_buffer *vb) * In the decoder case, immediately try to copy the buffer into the * bitstream ringbuffer and mark it as ready to be dequeued. */ - if (ctx->inst_type == CODA_INST_DECODER && + if (ctx->use_bit && ctx->inst_type == CODA_INST_DECODER && vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { /* * For backwards compatibility, queuing an empty buffer marks @@ -1262,7 +1263,7 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count) return 0; /* Allow BIT decoder device_run with no new buffers queued */ - if (ctx->inst_type == CODA_INST_DECODER) + if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) v4l2_m2m_set_src_buffered(ctx->fh.m2m_ctx, true); ctx->gopcounter = ctx->params.gop_size - 1; @@ -1626,6 +1627,7 @@ static int coda_open(struct file *file) ctx->cvd = to_coda_video_device(vdev); ctx->inst_type = ctx->cvd->type; ctx->ops = ctx->cvd->ops; + ctx->use_bit = !ctx->cvd->direct; init_completion(&ctx->completion); INIT_WORK(&ctx->pic_run_work, coda_pic_run_work); if (ctx->ops->seq_end_work) @@ -1680,22 +1682,24 @@ static int coda_open(struct file *file) ctx->fh.ctrl_handler = &ctx->ctrls; - ret = coda_alloc_context_buf(ctx, &ctx->parabuf, - CODA_PARA_BUF_SIZE, "parabuf"); - if (ret < 0) { - v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf"); - goto err_dma_alloc; - } + if (ctx->use_bit) { + ret = coda_alloc_context_buf(ctx, &ctx->parabuf, + CODA_PARA_BUF_SIZE, "parabuf"); + if (ret < 0) { + v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf"); + goto err_dma_alloc; + } - ctx->bitstream.size = CODA_MAX_FRAME_SIZE; - ctx->bitstream.vaddr = dma_alloc_writecombine( - &dev->plat_dev->dev, ctx->bitstream.size, - &ctx->bitstream.paddr, GFP_KERNEL); - if (!ctx->bitstream.vaddr) { - v4l2_err(&dev->v4l2_dev, - "failed to allocate bitstream ringbuffer"); - ret = -ENOMEM; - goto err_dma_writecombine; + ctx->bitstream.size = CODA_MAX_FRAME_SIZE; + ctx->bitstream.vaddr = dma_alloc_writecombine( + &dev->plat_dev->dev, ctx->bitstream.size, + &ctx->bitstream.paddr, GFP_KERNEL); + if (!ctx->bitstream.vaddr) { + v4l2_err(&dev->v4l2_dev, + "failed to allocate bitstream ringbuffer"); + ret = -ENOMEM; + goto err_dma_writecombine; + } } kfifo_init(&ctx->bitstream_fifo, ctx->bitstream.vaddr, ctx->bitstream.size); @@ -1743,7 +1747,7 @@ static int coda_release(struct file *file) v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n", ctx); - if (ctx->inst_type == CODA_INST_DECODER) + if (ctx->inst_type == CODA_INST_DECODER && ctx->use_bit) coda_bit_stream_end_flag(ctx); /* If this instance is running, call .job_abort and wait for it to end */ diff --git a/drivers/media/platform/coda/coda.h b/drivers/media/platform/coda/coda.h index 2ddfe51526fa..0c35cd5032ff 100644 --- a/drivers/media/platform/coda/coda.h +++ b/drivers/media/platform/coda/coda.h @@ -235,6 +235,7 @@ struct coda_ctx { u32 frame_mem_ctrl; int display_idx; struct dentry *debugfs_entry; + bool use_bit; }; extern int coda_debug; -- 2.30.2