#include <linux/clk.h>
#include <linux/irqreturn.h>
#include <linux/kernel.h>
+#include <linux/log2.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include <linux/slab.h>
#define CODA_DEFAULT_GAMMA 4096
#define CODA9_DEFAULT_GAMMA 24576 /* 0.75 * 32768 */
+static void coda_free_bitstream_buffer(struct coda_ctx *ctx);
+
static inline int coda_is_initialized(struct coda_dev *dev)
{
return coda_read(dev, CODA_REG_BIT_CUR_PC) != 0;
if (dev->devtype->product == CODA_DX6)
return 0;
- if (ctx->psbuf.vaddr) {
- v4l2_err(&dev->v4l2_dev, "psmembuf still allocated\n");
- return -EBUSY;
- }
- if (ctx->slicebuf.vaddr) {
- v4l2_err(&dev->v4l2_dev, "slicebuf still allocated\n");
- return -EBUSY;
- }
- if (ctx->workbuf.vaddr) {
- v4l2_err(&dev->v4l2_dev, "context buffer still allocated\n");
- ret = -EBUSY;
- return -ENOMEM;
- }
-
- if (q_data->fourcc == V4L2_PIX_FMT_H264) {
+ if (!ctx->slicebuf.vaddr && q_data->fourcc == V4L2_PIX_FMT_H264) {
/* worst case slice size */
size = (DIV_ROUND_UP(q_data->width, 16) *
DIV_ROUND_UP(q_data->height, 16)) * 3200 / 8 + 512;
}
}
- if (dev->devtype->product == CODA_7541) {
+ if (!ctx->psbuf.vaddr && dev->devtype->product == CODA_7541) {
ret = coda_alloc_context_buf(ctx, &ctx->psbuf,
CODA7_PS_BUF_SIZE, "psbuf");
if (ret < 0) {
}
}
- size = dev->devtype->workbuf_size;
- if (dev->devtype->product == CODA_960 &&
- q_data->fourcc == V4L2_PIX_FMT_H264)
- size += CODA9_PS_SAVE_SIZE;
- ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size, "workbuf");
- if (ret < 0) {
- v4l2_err(&dev->v4l2_dev,
- "failed to allocate %d byte context buffer",
- ctx->workbuf.size);
- goto err;
+ if (!ctx->workbuf.vaddr) {
+ size = dev->devtype->workbuf_size;
+ if (dev->devtype->product == CODA_960 &&
+ q_data->fourcc == V4L2_PIX_FMT_H264)
+ size += CODA9_PS_SAVE_SIZE;
+ ret = coda_alloc_context_buf(ctx, &ctx->workbuf, size,
+ "workbuf");
+ if (ret < 0) {
+ v4l2_err(&dev->v4l2_dev,
+ "failed to allocate %d byte context buffer",
+ ctx->workbuf.size);
+ goto err;
+ }
}
return 0;
* Encoder context operations
*/
+static int coda_encoder_reqbufs(struct coda_ctx *ctx,
+ struct v4l2_requestbuffers *rb)
+{
+ struct coda_q_data *q_data_src;
+ int ret;
+
+ if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return 0;
+
+ if (rb->count) {
+ q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ ret = coda_alloc_context_buffers(ctx, q_data_src);
+ if (ret < 0)
+ return ret;
+ } else {
+ coda_free_context_buffers(ctx);
+ }
+
+ return 0;
+}
+
static int coda_start_encoding(struct coda_ctx *ctx)
{
struct coda_dev *dev = ctx->dev;
q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
dst_fourcc = q_data_dst->fourcc;
- /* Allocate per-instance buffers */
- ret = coda_alloc_context_buffers(ctx, q_data_src);
- if (ret < 0)
- return ret;
-
buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
bitstream_size = q_data_dst->sizeimage;
ctx->bitstream.vaddr, ctx->bitstream.size);
coda_free_framebuffers(ctx);
- coda_free_context_buffers(ctx);
mutex_unlock(&dev->coda_mutex);
mutex_unlock(&ctx->buffer_mutex);
mutex_lock(&ctx->buffer_mutex);
coda_free_framebuffers(ctx);
coda_free_context_buffers(ctx);
+ coda_free_bitstream_buffer(ctx);
mutex_unlock(&ctx->buffer_mutex);
}
const struct coda_context_ops coda_bit_encode_ops = {
.queue_init = coda_encoder_queue_init,
+ .reqbufs = coda_encoder_reqbufs,
.start_streaming = coda_start_encoding,
.prepare_run = coda_prepare_encode,
.finish_run = coda_finish_encode,
* Decoder context operations
*/
+static int coda_alloc_bitstream_buffer(struct coda_ctx *ctx,
+ struct coda_q_data *q_data)
+{
+ if (ctx->bitstream.vaddr)
+ return 0;
+
+ ctx->bitstream.size = roundup_pow_of_two(q_data->sizeimage * 2);
+ ctx->bitstream.vaddr = dma_alloc_writecombine(
+ &ctx->dev->plat_dev->dev, ctx->bitstream.size,
+ &ctx->bitstream.paddr, GFP_KERNEL);
+ if (!ctx->bitstream.vaddr) {
+ v4l2_err(&ctx->dev->v4l2_dev,
+ "failed to allocate bitstream ringbuffer");
+ return -ENOMEM;
+ }
+ kfifo_init(&ctx->bitstream_fifo,
+ ctx->bitstream.vaddr, ctx->bitstream.size);
+
+ return 0;
+}
+
+static void coda_free_bitstream_buffer(struct coda_ctx *ctx)
+{
+ if (ctx->bitstream.vaddr == NULL)
+ return;
+
+ dma_free_writecombine(&ctx->dev->plat_dev->dev, ctx->bitstream.size,
+ ctx->bitstream.vaddr, ctx->bitstream.paddr);
+ ctx->bitstream.vaddr = NULL;
+ kfifo_init(&ctx->bitstream_fifo, NULL, 0);
+}
+
+static int coda_decoder_reqbufs(struct coda_ctx *ctx,
+ struct v4l2_requestbuffers *rb)
+{
+ struct coda_q_data *q_data_src;
+ int ret;
+
+ if (rb->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return 0;
+
+ if (rb->count) {
+ q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+ ret = coda_alloc_context_buffers(ctx, q_data_src);
+ if (ret < 0)
+ return ret;
+ ret = coda_alloc_bitstream_buffer(ctx, q_data_src);
+ if (ret < 0) {
+ coda_free_context_buffers(ctx);
+ return ret;
+ }
+ } else {
+ coda_free_bitstream_buffer(ctx);
+ coda_free_context_buffers(ctx);
+ }
+
+ return 0;
+}
+
static int __coda_start_decoding(struct coda_ctx *ctx)
{
struct coda_q_data *q_data_src, *q_data_dst;
src_fourcc = q_data_src->fourcc;
dst_fourcc = q_data_dst->fourcc;
- /* Allocate per-instance buffers */
- ret = coda_alloc_context_buffers(ctx, q_data_src);
- if (ret < 0)
- return ret;
-
coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
/* Update coda bitstream read and write pointers from kfifo */
* by up to 512 bytes
*/
if (ctx->bit_stream_param & CODA_BIT_STREAM_END_FLAG) {
- if (coda_get_bitstream_payload(ctx) >= CODA_MAX_FRAME_SIZE - 512)
+ if (coda_get_bitstream_payload(ctx) >= ctx->bitstream.size - 512)
kfifo_init(&ctx->bitstream_fifo,
ctx->bitstream.vaddr, ctx->bitstream.size);
}
const struct coda_context_ops coda_bit_decode_ops = {
.queue_init = coda_decoder_queue_init,
+ .reqbufs = coda_decoder_reqbufs,
.start_streaming = coda_start_decoding,
.prepare_run = coda_prepare_decode,
.finish_run = coda_finish_decode,
projects / firefly-linux-kernel-4.4.55.git / blobdiff