1977 lines
49 KiB
C
1977 lines
49 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) STMicroelectronics SA 2015
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* Authors: Hugues Fruchet <hugues.fruchet@st.com>
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* Jean-Christophe Trotin <jean-christophe.trotin@st.com>
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* for STMicroelectronics.
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*/
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#include <linux/clk.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <media/v4l2-ioctl.h>
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#include <media/v4l2-event.h>
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#include <media/videobuf2-dma-contig.h>
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#include "delta.h"
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#include "delta-debug.h"
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#include "delta-ipc.h"
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#define DELTA_NAME "st-delta"
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#define DELTA_PREFIX "[---:----]"
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#define to_ctx(__fh) container_of(__fh, struct delta_ctx, fh)
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#define to_au(__vbuf) container_of(__vbuf, struct delta_au, vbuf)
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#define to_frame(__vbuf) container_of(__vbuf, struct delta_frame, vbuf)
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#define call_dec_op(dec, op, args...)\
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((dec && (dec)->op) ? (dec)->op(args) : 0)
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/* registry of available decoders */
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static const struct delta_dec *delta_decoders[] = {
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#ifdef CONFIG_VIDEO_STI_DELTA_MJPEG
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&mjpegdec,
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#endif
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};
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static inline int frame_size(u32 w, u32 h, u32 fmt)
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{
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switch (fmt) {
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case V4L2_PIX_FMT_NV12:
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return (w * h * 3) / 2;
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default:
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return 0;
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}
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}
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static inline int frame_stride(u32 w, u32 fmt)
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{
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switch (fmt) {
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case V4L2_PIX_FMT_NV12:
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return w;
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default:
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return 0;
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}
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}
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static void dump_au(struct delta_ctx *ctx, struct delta_au *au)
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{
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struct delta_dev *delta = ctx->dev;
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u32 size = 10; /* dump first & last 10 bytes */
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u8 *data = (u8 *)(au->vaddr);
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if (au->size <= (size * 2))
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dev_dbg(delta->dev, "%s dump au[%d] dts=%lld size=%d data=%*ph\n",
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ctx->name, au->vbuf.vb2_buf.index, au->dts, au->size,
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au->size, data);
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else
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dev_dbg(delta->dev, "%s dump au[%d] dts=%lld size=%d data=%*ph..%*ph\n",
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ctx->name, au->vbuf.vb2_buf.index, au->dts, au->size,
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size, data, size, data + au->size - size);
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}
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static void dump_frame(struct delta_ctx *ctx, struct delta_frame *frame)
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{
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struct delta_dev *delta = ctx->dev;
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u32 size = 10; /* dump first 10 bytes */
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u8 *data = (u8 *)(frame->vaddr);
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dev_dbg(delta->dev, "%s dump frame[%d] dts=%lld type=%s field=%s data=%*ph\n",
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ctx->name, frame->index, frame->dts,
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frame_type_str(frame->flags),
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frame_field_str(frame->field),
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size, data);
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}
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static void delta_au_done(struct delta_ctx *ctx, struct delta_au *au, int err)
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{
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struct vb2_v4l2_buffer *vbuf;
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vbuf = &au->vbuf;
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vbuf->sequence = ctx->au_num++;
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v4l2_m2m_buf_done(vbuf, err ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
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}
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static void delta_frame_done(struct delta_ctx *ctx, struct delta_frame *frame,
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int err)
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{
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struct vb2_v4l2_buffer *vbuf;
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dump_frame(ctx, frame);
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/* decoded frame is now output to user */
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frame->state |= DELTA_FRAME_OUT;
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vbuf = &frame->vbuf;
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vbuf->sequence = ctx->frame_num++;
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v4l2_m2m_buf_done(vbuf, err ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
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if (frame->info.size) /* ignore EOS */
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ctx->output_frames++;
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}
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static void requeue_free_frames(struct delta_ctx *ctx)
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{
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struct vb2_v4l2_buffer *vbuf;
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struct delta_frame *frame;
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unsigned int i;
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/* requeue all free frames */
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for (i = 0; i < ctx->nb_of_frames; i++) {
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frame = ctx->frames[i];
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if (frame->state == DELTA_FRAME_FREE) {
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vbuf = &frame->vbuf;
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v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
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frame->state = DELTA_FRAME_M2M;
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}
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}
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}
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static int delta_recycle(struct delta_ctx *ctx, struct delta_frame *frame)
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{
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const struct delta_dec *dec = ctx->dec;
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/* recycle frame on decoder side */
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call_dec_op(dec, recycle, ctx, frame);
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/* this frame is no more output */
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frame->state &= ~DELTA_FRAME_OUT;
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/* requeue free frame */
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if (frame->state == DELTA_FRAME_FREE) {
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struct vb2_v4l2_buffer *vbuf = &frame->vbuf;
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v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
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frame->state = DELTA_FRAME_M2M;
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}
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/* reset other frame fields */
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frame->flags = 0;
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frame->dts = 0;
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return 0;
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}
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static void delta_push_dts(struct delta_ctx *ctx, u64 val)
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{
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struct delta_dts *dts;
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dts = kzalloc(sizeof(*dts), GFP_KERNEL);
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if (!dts)
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return;
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INIT_LIST_HEAD(&dts->list);
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/*
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* protected by global lock acquired
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* by V4L2 when calling delta_vb2_au_queue
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*/
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dts->val = val;
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list_add_tail(&dts->list, &ctx->dts);
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}
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static void delta_pop_dts(struct delta_ctx *ctx, u64 *val)
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{
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struct delta_dev *delta = ctx->dev;
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struct delta_dts *dts;
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/*
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* protected by global lock acquired
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* by V4L2 when calling delta_vb2_au_queue
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*/
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if (list_empty(&ctx->dts)) {
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dev_warn(delta->dev, "%s no dts to pop ... output dts = 0\n",
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ctx->name);
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*val = 0;
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return;
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}
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dts = list_first_entry(&ctx->dts, struct delta_dts, list);
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list_del(&dts->list);
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*val = dts->val;
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kfree(dts);
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}
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static void delta_flush_dts(struct delta_ctx *ctx)
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{
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struct delta_dts *dts;
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struct delta_dts *next;
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/*
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* protected by global lock acquired
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* by V4L2 when calling delta_vb2_au_queue
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*/
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/* free all pending dts */
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list_for_each_entry_safe(dts, next, &ctx->dts, list)
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kfree(dts);
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/* reset list */
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INIT_LIST_HEAD(&ctx->dts);
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}
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static inline int frame_alignment(u32 fmt)
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{
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switch (fmt) {
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case V4L2_PIX_FMT_NV12:
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case V4L2_PIX_FMT_NV21:
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/* multiple of 2 */
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return 2;
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default:
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return 1;
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}
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}
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static inline int estimated_au_size(u32 w, u32 h)
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{
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/*
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* for a MJPEG stream encoded from YUV422 pixel format,
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* assuming a compression ratio of 2, the maximum size
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* of an access unit is (width x height x 2) / 2,
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* so (width x height)
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*/
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return (w * h);
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}
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static void set_default_params(struct delta_ctx *ctx)
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{
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struct delta_frameinfo *frameinfo = &ctx->frameinfo;
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struct delta_streaminfo *streaminfo = &ctx->streaminfo;
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memset(frameinfo, 0, sizeof(*frameinfo));
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frameinfo->pixelformat = V4L2_PIX_FMT_NV12;
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frameinfo->width = DELTA_DEFAULT_WIDTH;
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frameinfo->height = DELTA_DEFAULT_HEIGHT;
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frameinfo->aligned_width = ALIGN(frameinfo->width,
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DELTA_WIDTH_ALIGNMENT);
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frameinfo->aligned_height = ALIGN(frameinfo->height,
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DELTA_HEIGHT_ALIGNMENT);
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frameinfo->size = frame_size(frameinfo->aligned_width,
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frameinfo->aligned_height,
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frameinfo->pixelformat);
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frameinfo->field = V4L2_FIELD_NONE;
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frameinfo->colorspace = V4L2_COLORSPACE_REC709;
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frameinfo->xfer_func = V4L2_XFER_FUNC_DEFAULT;
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frameinfo->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
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frameinfo->quantization = V4L2_QUANTIZATION_DEFAULT;
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memset(streaminfo, 0, sizeof(*streaminfo));
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streaminfo->streamformat = DELTA_DEFAULT_STREAMFORMAT;
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streaminfo->width = DELTA_DEFAULT_WIDTH;
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streaminfo->height = DELTA_DEFAULT_HEIGHT;
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streaminfo->field = V4L2_FIELD_NONE;
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streaminfo->colorspace = V4L2_COLORSPACE_REC709;
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streaminfo->xfer_func = V4L2_XFER_FUNC_DEFAULT;
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streaminfo->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
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streaminfo->quantization = V4L2_QUANTIZATION_DEFAULT;
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ctx->max_au_size = estimated_au_size(streaminfo->width,
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streaminfo->height);
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}
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static const struct delta_dec *delta_find_decoder(struct delta_ctx *ctx,
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u32 streamformat,
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u32 pixelformat)
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{
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struct delta_dev *delta = ctx->dev;
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const struct delta_dec *dec;
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unsigned int i;
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for (i = 0; i < delta->nb_of_decoders; i++) {
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dec = delta->decoders[i];
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if ((dec->pixelformat == pixelformat) &&
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(dec->streamformat == streamformat))
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return dec;
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}
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return NULL;
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}
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static void register_format(u32 format, u32 formats[], u32 *nb_of_formats)
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{
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u32 i;
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for (i = 0; i < *nb_of_formats; i++) {
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if (format == formats[i])
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return;
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}
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formats[(*nb_of_formats)++] = format;
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}
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static void register_formats(struct delta_dev *delta)
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{
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unsigned int i;
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for (i = 0; i < delta->nb_of_decoders; i++) {
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register_format(delta->decoders[i]->pixelformat,
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delta->pixelformats,
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&delta->nb_of_pixelformats);
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register_format(delta->decoders[i]->streamformat,
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delta->streamformats,
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&delta->nb_of_streamformats);
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}
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}
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static void register_decoders(struct delta_dev *delta)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(delta_decoders); i++) {
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if (delta->nb_of_decoders >= DELTA_MAX_DECODERS) {
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dev_dbg(delta->dev,
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"%s failed to register %s decoder (%d maximum reached)\n",
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DELTA_PREFIX, delta_decoders[i]->name,
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DELTA_MAX_DECODERS);
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return;
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}
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delta->decoders[delta->nb_of_decoders++] = delta_decoders[i];
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dev_info(delta->dev, "%s %s decoder registered\n",
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DELTA_PREFIX, delta_decoders[i]->name);
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}
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}
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static int delta_open_decoder(struct delta_ctx *ctx, u32 streamformat,
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u32 pixelformat, const struct delta_dec **pdec)
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{
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struct delta_dev *delta = ctx->dev;
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const struct delta_dec *dec;
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int ret;
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dec = delta_find_decoder(ctx, streamformat, ctx->frameinfo.pixelformat);
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if (!dec) {
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dev_err(delta->dev, "%s no decoder found matching %4.4s => %4.4s\n",
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ctx->name, (char *)&streamformat, (char *)&pixelformat);
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return -EINVAL;
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}
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dev_dbg(delta->dev, "%s one decoder matching %4.4s => %4.4s\n",
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ctx->name, (char *)&streamformat, (char *)&pixelformat);
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/* update instance name */
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snprintf(ctx->name, sizeof(ctx->name), "[%3d:%4.4s]",
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delta->instance_id, (char *)&streamformat);
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/* open decoder instance */
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ret = call_dec_op(dec, open, ctx);
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if (ret) {
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dev_err(delta->dev, "%s failed to open decoder instance (%d)\n",
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ctx->name, ret);
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return ret;
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}
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dev_dbg(delta->dev, "%s %s decoder opened\n", ctx->name, dec->name);
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*pdec = dec;
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return ret;
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}
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/*
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* V4L2 ioctl operations
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*/
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static int delta_querycap(struct file *file, void *priv,
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struct v4l2_capability *cap)
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{
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struct delta_ctx *ctx = to_ctx(file->private_data);
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struct delta_dev *delta = ctx->dev;
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strscpy(cap->driver, DELTA_NAME, sizeof(cap->driver));
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strscpy(cap->card, delta->vdev->name, sizeof(cap->card));
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snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
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delta->pdev->name);
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return 0;
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}
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static int delta_enum_fmt_stream(struct file *file, void *priv,
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struct v4l2_fmtdesc *f)
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{
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struct delta_ctx *ctx = to_ctx(file->private_data);
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struct delta_dev *delta = ctx->dev;
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if (unlikely(f->index >= delta->nb_of_streamformats))
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return -EINVAL;
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f->pixelformat = delta->streamformats[f->index];
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return 0;
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}
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static int delta_enum_fmt_frame(struct file *file, void *priv,
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struct v4l2_fmtdesc *f)
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{
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struct delta_ctx *ctx = to_ctx(file->private_data);
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struct delta_dev *delta = ctx->dev;
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if (unlikely(f->index >= delta->nb_of_pixelformats))
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return -EINVAL;
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f->pixelformat = delta->pixelformats[f->index];
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return 0;
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}
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static int delta_g_fmt_stream(struct file *file, void *fh,
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struct v4l2_format *f)
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{
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struct delta_ctx *ctx = to_ctx(file->private_data);
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struct delta_dev *delta = ctx->dev;
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struct v4l2_pix_format *pix = &f->fmt.pix;
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struct delta_streaminfo *streaminfo = &ctx->streaminfo;
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unsigned char str[100] = "";
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||
|
if (!(ctx->flags & DELTA_FLAG_STREAMINFO))
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 GET_FMT (OUTPUT): no stream information available, default to %s\n",
|
||
|
ctx->name,
|
||
|
delta_streaminfo_str(streaminfo, str, sizeof(str)));
|
||
|
|
||
|
pix->pixelformat = streaminfo->streamformat;
|
||
|
pix->width = streaminfo->width;
|
||
|
pix->height = streaminfo->height;
|
||
|
pix->field = streaminfo->field;
|
||
|
pix->bytesperline = 0;
|
||
|
pix->sizeimage = ctx->max_au_size;
|
||
|
pix->colorspace = streaminfo->colorspace;
|
||
|
pix->xfer_func = streaminfo->xfer_func;
|
||
|
pix->ycbcr_enc = streaminfo->ycbcr_enc;
|
||
|
pix->quantization = streaminfo->quantization;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_g_fmt_frame(struct file *file, void *fh, struct v4l2_format *f)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(file->private_data);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
||
|
struct delta_frameinfo *frameinfo = &ctx->frameinfo;
|
||
|
struct delta_streaminfo *streaminfo = &ctx->streaminfo;
|
||
|
unsigned char str[100] = "";
|
||
|
|
||
|
if (!(ctx->flags & DELTA_FLAG_FRAMEINFO))
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 GET_FMT (CAPTURE): no frame information available, default to %s\n",
|
||
|
ctx->name,
|
||
|
delta_frameinfo_str(frameinfo, str, sizeof(str)));
|
||
|
|
||
|
pix->pixelformat = frameinfo->pixelformat;
|
||
|
pix->width = frameinfo->aligned_width;
|
||
|
pix->height = frameinfo->aligned_height;
|
||
|
pix->field = frameinfo->field;
|
||
|
pix->bytesperline = frame_stride(frameinfo->aligned_width,
|
||
|
frameinfo->pixelformat);
|
||
|
pix->sizeimage = frameinfo->size;
|
||
|
|
||
|
if (ctx->flags & DELTA_FLAG_STREAMINFO) {
|
||
|
/* align colorspace & friends on stream ones if any set */
|
||
|
frameinfo->colorspace = streaminfo->colorspace;
|
||
|
frameinfo->xfer_func = streaminfo->xfer_func;
|
||
|
frameinfo->ycbcr_enc = streaminfo->ycbcr_enc;
|
||
|
frameinfo->quantization = streaminfo->quantization;
|
||
|
}
|
||
|
pix->colorspace = frameinfo->colorspace;
|
||
|
pix->xfer_func = frameinfo->xfer_func;
|
||
|
pix->ycbcr_enc = frameinfo->ycbcr_enc;
|
||
|
pix->quantization = frameinfo->quantization;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_try_fmt_stream(struct file *file, void *priv,
|
||
|
struct v4l2_format *f)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(file->private_data);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
||
|
u32 streamformat = pix->pixelformat;
|
||
|
const struct delta_dec *dec;
|
||
|
u32 width, height;
|
||
|
u32 au_size;
|
||
|
|
||
|
dec = delta_find_decoder(ctx, streamformat, ctx->frameinfo.pixelformat);
|
||
|
if (!dec) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 TRY_FMT (OUTPUT): unsupported format %4.4s\n",
|
||
|
ctx->name, (char *)&pix->pixelformat);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
/* adjust width & height */
|
||
|
width = pix->width;
|
||
|
height = pix->height;
|
||
|
v4l_bound_align_image
|
||
|
(&pix->width,
|
||
|
DELTA_MIN_WIDTH,
|
||
|
dec->max_width ? dec->max_width : DELTA_MAX_WIDTH,
|
||
|
0,
|
||
|
&pix->height,
|
||
|
DELTA_MIN_HEIGHT,
|
||
|
dec->max_height ? dec->max_height : DELTA_MAX_HEIGHT,
|
||
|
0, 0);
|
||
|
|
||
|
if ((pix->width != width) || (pix->height != height))
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 TRY_FMT (OUTPUT): resolution updated %dx%d -> %dx%d to fit min/max/alignment\n",
|
||
|
ctx->name, width, height,
|
||
|
pix->width, pix->height);
|
||
|
|
||
|
au_size = estimated_au_size(pix->width, pix->height);
|
||
|
if (pix->sizeimage < au_size) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 TRY_FMT (OUTPUT): size updated %d -> %d to fit estimated size\n",
|
||
|
ctx->name, pix->sizeimage, au_size);
|
||
|
pix->sizeimage = au_size;
|
||
|
}
|
||
|
|
||
|
pix->bytesperline = 0;
|
||
|
|
||
|
if (pix->field == V4L2_FIELD_ANY)
|
||
|
pix->field = V4L2_FIELD_NONE;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_try_fmt_frame(struct file *file, void *priv,
|
||
|
struct v4l2_format *f)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(file->private_data);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
||
|
u32 pixelformat = pix->pixelformat;
|
||
|
const struct delta_dec *dec;
|
||
|
u32 width, height;
|
||
|
|
||
|
dec = delta_find_decoder(ctx, ctx->streaminfo.streamformat,
|
||
|
pixelformat);
|
||
|
if (!dec) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 TRY_FMT (CAPTURE): unsupported format %4.4s\n",
|
||
|
ctx->name, (char *)&pixelformat);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
/* adjust width & height */
|
||
|
width = pix->width;
|
||
|
height = pix->height;
|
||
|
v4l_bound_align_image(&pix->width,
|
||
|
DELTA_MIN_WIDTH, DELTA_MAX_WIDTH,
|
||
|
frame_alignment(pixelformat) - 1,
|
||
|
&pix->height,
|
||
|
DELTA_MIN_HEIGHT, DELTA_MAX_HEIGHT,
|
||
|
frame_alignment(pixelformat) - 1, 0);
|
||
|
|
||
|
if ((pix->width != width) || (pix->height != height))
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 TRY_FMT (CAPTURE): resolution updated %dx%d -> %dx%d to fit min/max/alignment\n",
|
||
|
ctx->name, width, height, pix->width, pix->height);
|
||
|
|
||
|
/* default decoder alignment constraint */
|
||
|
width = ALIGN(pix->width, DELTA_WIDTH_ALIGNMENT);
|
||
|
height = ALIGN(pix->height, DELTA_HEIGHT_ALIGNMENT);
|
||
|
if ((pix->width != width) || (pix->height != height))
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 TRY_FMT (CAPTURE): resolution updated %dx%d -> %dx%d to fit decoder alignment\n",
|
||
|
ctx->name, width, height, pix->width, pix->height);
|
||
|
|
||
|
if (!pix->colorspace) {
|
||
|
pix->colorspace = V4L2_COLORSPACE_REC709;
|
||
|
pix->xfer_func = V4L2_XFER_FUNC_DEFAULT;
|
||
|
pix->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
|
||
|
pix->quantization = V4L2_QUANTIZATION_DEFAULT;
|
||
|
}
|
||
|
|
||
|
pix->width = width;
|
||
|
pix->height = height;
|
||
|
pix->bytesperline = frame_stride(pix->width, pixelformat);
|
||
|
pix->sizeimage = frame_size(pix->width, pix->height, pixelformat);
|
||
|
|
||
|
if (pix->field == V4L2_FIELD_ANY)
|
||
|
pix->field = V4L2_FIELD_NONE;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_s_fmt_stream(struct file *file, void *fh,
|
||
|
struct v4l2_format *f)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(file->private_data);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct vb2_queue *vq;
|
||
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
||
|
int ret;
|
||
|
|
||
|
ret = delta_try_fmt_stream(file, fh, f);
|
||
|
if (ret) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 S_FMT (OUTPUT): unsupported format %4.4s\n",
|
||
|
ctx->name, (char *)&pix->pixelformat);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
|
||
|
if (vb2_is_streaming(vq)) {
|
||
|
dev_dbg(delta->dev, "%s V4L2 S_FMT (OUTPUT): queue busy\n",
|
||
|
ctx->name);
|
||
|
return -EBUSY;
|
||
|
}
|
||
|
|
||
|
ctx->max_au_size = pix->sizeimage;
|
||
|
ctx->streaminfo.width = pix->width;
|
||
|
ctx->streaminfo.height = pix->height;
|
||
|
ctx->streaminfo.streamformat = pix->pixelformat;
|
||
|
ctx->streaminfo.colorspace = pix->colorspace;
|
||
|
ctx->streaminfo.xfer_func = pix->xfer_func;
|
||
|
ctx->streaminfo.ycbcr_enc = pix->ycbcr_enc;
|
||
|
ctx->streaminfo.quantization = pix->quantization;
|
||
|
ctx->flags |= DELTA_FLAG_STREAMINFO;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_s_fmt_frame(struct file *file, void *fh, struct v4l2_format *f)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(file->private_data);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
struct v4l2_pix_format *pix = &f->fmt.pix;
|
||
|
struct delta_frameinfo frameinfo;
|
||
|
unsigned char str[100] = "";
|
||
|
struct vb2_queue *vq;
|
||
|
int ret;
|
||
|
|
||
|
vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
|
||
|
if (vb2_is_streaming(vq)) {
|
||
|
dev_dbg(delta->dev, "%s V4L2 S_FMT (CAPTURE): queue busy\n",
|
||
|
ctx->name);
|
||
|
return -EBUSY;
|
||
|
}
|
||
|
|
||
|
if (ctx->state < DELTA_STATE_READY) {
|
||
|
/*
|
||
|
* decoder not yet opened and valid stream header not found,
|
||
|
* could not negotiate format with decoder, check at least
|
||
|
* pixel format & negotiate resolution boundaries
|
||
|
* and alignment...
|
||
|
*/
|
||
|
ret = delta_try_fmt_frame(file, fh, f);
|
||
|
if (ret) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 S_FMT (CAPTURE): unsupported format %4.4s\n",
|
||
|
ctx->name, (char *)&pix->pixelformat);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* set frame information to decoder */
|
||
|
memset(&frameinfo, 0, sizeof(frameinfo));
|
||
|
frameinfo.pixelformat = pix->pixelformat;
|
||
|
frameinfo.width = pix->width;
|
||
|
frameinfo.height = pix->height;
|
||
|
frameinfo.aligned_width = pix->width;
|
||
|
frameinfo.aligned_height = pix->height;
|
||
|
frameinfo.size = pix->sizeimage;
|
||
|
frameinfo.field = pix->field;
|
||
|
frameinfo.colorspace = pix->colorspace;
|
||
|
frameinfo.xfer_func = pix->xfer_func;
|
||
|
frameinfo.ycbcr_enc = pix->ycbcr_enc;
|
||
|
frameinfo.quantization = pix->quantization;
|
||
|
ret = call_dec_op(dec, set_frameinfo, ctx, &frameinfo);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* then get what decoder can really do */
|
||
|
ret = call_dec_op(dec, get_frameinfo, ctx, &frameinfo);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
ctx->flags |= DELTA_FLAG_FRAMEINFO;
|
||
|
ctx->frameinfo = frameinfo;
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s V4L2 SET_FMT (CAPTURE): frameinfo updated to %s\n",
|
||
|
ctx->name,
|
||
|
delta_frameinfo_str(&frameinfo, str, sizeof(str)));
|
||
|
|
||
|
pix->pixelformat = frameinfo.pixelformat;
|
||
|
pix->width = frameinfo.aligned_width;
|
||
|
pix->height = frameinfo.aligned_height;
|
||
|
pix->bytesperline = frame_stride(pix->width, pix->pixelformat);
|
||
|
pix->sizeimage = frameinfo.size;
|
||
|
pix->field = frameinfo.field;
|
||
|
pix->colorspace = frameinfo.colorspace;
|
||
|
pix->xfer_func = frameinfo.xfer_func;
|
||
|
pix->ycbcr_enc = frameinfo.ycbcr_enc;
|
||
|
pix->quantization = frameinfo.quantization;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_g_selection(struct file *file, void *fh,
|
||
|
struct v4l2_selection *s)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(fh);
|
||
|
struct delta_frameinfo *frameinfo = &ctx->frameinfo;
|
||
|
struct v4l2_rect crop;
|
||
|
|
||
|
if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
|
||
|
return -EINVAL;
|
||
|
|
||
|
if ((ctx->flags & DELTA_FLAG_FRAMEINFO) &&
|
||
|
(frameinfo->flags & DELTA_FRAMEINFO_FLAG_CROP)) {
|
||
|
crop = frameinfo->crop;
|
||
|
} else {
|
||
|
/* default to video dimensions */
|
||
|
crop.left = 0;
|
||
|
crop.top = 0;
|
||
|
crop.width = frameinfo->width;
|
||
|
crop.height = frameinfo->height;
|
||
|
}
|
||
|
|
||
|
switch (s->target) {
|
||
|
case V4L2_SEL_TGT_COMPOSE:
|
||
|
case V4L2_SEL_TGT_COMPOSE_DEFAULT:
|
||
|
/* visible area inside video */
|
||
|
s->r = crop;
|
||
|
break;
|
||
|
case V4L2_SEL_TGT_COMPOSE_PADDED:
|
||
|
case V4L2_SEL_TGT_COMPOSE_BOUNDS:
|
||
|
/* up to aligned dimensions */
|
||
|
s->r.left = 0;
|
||
|
s->r.top = 0;
|
||
|
s->r.width = frameinfo->aligned_width;
|
||
|
s->r.height = frameinfo->aligned_height;
|
||
|
break;
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void delta_complete_eos(struct delta_ctx *ctx,
|
||
|
struct delta_frame *frame)
|
||
|
{
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
const struct v4l2_event ev = {.type = V4L2_EVENT_EOS};
|
||
|
|
||
|
/*
|
||
|
* Send EOS to user:
|
||
|
* - by returning an empty frame flagged to V4L2_BUF_FLAG_LAST
|
||
|
* - and then send EOS event
|
||
|
*/
|
||
|
|
||
|
/* empty frame */
|
||
|
frame->info.size = 0;
|
||
|
|
||
|
/* set the last buffer flag */
|
||
|
frame->flags |= V4L2_BUF_FLAG_LAST;
|
||
|
|
||
|
/* release frame to user */
|
||
|
delta_frame_done(ctx, frame, 0);
|
||
|
|
||
|
/* send EOS event */
|
||
|
v4l2_event_queue_fh(&ctx->fh, &ev);
|
||
|
|
||
|
dev_dbg(delta->dev, "%s EOS completed\n", ctx->name);
|
||
|
}
|
||
|
|
||
|
static int delta_try_decoder_cmd(struct file *file, void *fh,
|
||
|
struct v4l2_decoder_cmd *cmd)
|
||
|
{
|
||
|
if (cmd->cmd != V4L2_DEC_CMD_STOP)
|
||
|
return -EINVAL;
|
||
|
|
||
|
if (cmd->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
|
||
|
return -EINVAL;
|
||
|
|
||
|
if (!(cmd->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) &&
|
||
|
(cmd->stop.pts != 0))
|
||
|
return -EINVAL;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_decoder_stop_cmd(struct delta_ctx *ctx, void *fh)
|
||
|
{
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct delta_frame *frame = NULL;
|
||
|
int ret = 0;
|
||
|
|
||
|
dev_dbg(delta->dev, "%s EOS received\n", ctx->name);
|
||
|
|
||
|
if (ctx->state != DELTA_STATE_READY)
|
||
|
return 0;
|
||
|
|
||
|
/* drain the decoder */
|
||
|
call_dec_op(dec, drain, ctx);
|
||
|
|
||
|
/* release to user drained frames */
|
||
|
while (1) {
|
||
|
frame = NULL;
|
||
|
ret = call_dec_op(dec, get_frame, ctx, &frame);
|
||
|
if (ret == -ENODATA) {
|
||
|
/* no more decoded frames */
|
||
|
break;
|
||
|
}
|
||
|
if (frame) {
|
||
|
dev_dbg(delta->dev, "%s drain frame[%d]\n",
|
||
|
ctx->name, frame->index);
|
||
|
|
||
|
/* pop timestamp and mark frame with it */
|
||
|
delta_pop_dts(ctx, &frame->dts);
|
||
|
|
||
|
/* release decoded frame to user */
|
||
|
delta_frame_done(ctx, frame, 0);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/* try to complete EOS */
|
||
|
ret = delta_get_free_frame(ctx, &frame);
|
||
|
if (ret)
|
||
|
goto delay_eos;
|
||
|
|
||
|
/* new frame available, EOS can now be completed */
|
||
|
delta_complete_eos(ctx, frame);
|
||
|
|
||
|
ctx->state = DELTA_STATE_EOS;
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
delay_eos:
|
||
|
/*
|
||
|
* EOS completion from driver is delayed because
|
||
|
* we don't have a free empty frame available.
|
||
|
* EOS completion is so delayed till next frame_queue() call
|
||
|
* to be sure to have a free empty frame available.
|
||
|
*/
|
||
|
ctx->state = DELTA_STATE_WF_EOS;
|
||
|
dev_dbg(delta->dev, "%s EOS delayed\n", ctx->name);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_decoder_cmd(struct file *file, void *fh,
|
||
|
struct v4l2_decoder_cmd *cmd)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(fh);
|
||
|
int ret = 0;
|
||
|
|
||
|
ret = delta_try_decoder_cmd(file, fh, cmd);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
return delta_decoder_stop_cmd(ctx, fh);
|
||
|
}
|
||
|
|
||
|
static int delta_subscribe_event(struct v4l2_fh *fh,
|
||
|
const struct v4l2_event_subscription *sub)
|
||
|
{
|
||
|
switch (sub->type) {
|
||
|
case V4L2_EVENT_EOS:
|
||
|
return v4l2_event_subscribe(fh, sub, 2, NULL);
|
||
|
default:
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* v4l2 ioctl ops */
|
||
|
static const struct v4l2_ioctl_ops delta_ioctl_ops = {
|
||
|
.vidioc_querycap = delta_querycap,
|
||
|
.vidioc_enum_fmt_vid_cap = delta_enum_fmt_frame,
|
||
|
.vidioc_g_fmt_vid_cap = delta_g_fmt_frame,
|
||
|
.vidioc_try_fmt_vid_cap = delta_try_fmt_frame,
|
||
|
.vidioc_s_fmt_vid_cap = delta_s_fmt_frame,
|
||
|
.vidioc_enum_fmt_vid_out = delta_enum_fmt_stream,
|
||
|
.vidioc_g_fmt_vid_out = delta_g_fmt_stream,
|
||
|
.vidioc_try_fmt_vid_out = delta_try_fmt_stream,
|
||
|
.vidioc_s_fmt_vid_out = delta_s_fmt_stream,
|
||
|
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
|
||
|
.vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
|
||
|
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
|
||
|
.vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
|
||
|
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
|
||
|
.vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
|
||
|
.vidioc_streamon = v4l2_m2m_ioctl_streamon,
|
||
|
.vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
|
||
|
.vidioc_g_selection = delta_g_selection,
|
||
|
.vidioc_try_decoder_cmd = delta_try_decoder_cmd,
|
||
|
.vidioc_decoder_cmd = delta_decoder_cmd,
|
||
|
.vidioc_subscribe_event = delta_subscribe_event,
|
||
|
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* mem-to-mem operations
|
||
|
*/
|
||
|
|
||
|
static void delta_run_work(struct work_struct *work)
|
||
|
{
|
||
|
struct delta_ctx *ctx = container_of(work, struct delta_ctx, run_work);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
struct delta_au *au;
|
||
|
struct delta_frame *frame = NULL;
|
||
|
int ret = 0;
|
||
|
bool discard = false;
|
||
|
struct vb2_v4l2_buffer *vbuf;
|
||
|
|
||
|
if (!dec) {
|
||
|
dev_err(delta->dev, "%s no decoder opened yet\n", ctx->name);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/* protect instance against reentrancy */
|
||
|
mutex_lock(&ctx->lock);
|
||
|
|
||
|
vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
|
||
|
if (!vbuf) {
|
||
|
dev_err(delta->dev, "%s no buffer to decode\n", ctx->name);
|
||
|
mutex_unlock(&ctx->lock);
|
||
|
return;
|
||
|
}
|
||
|
au = to_au(vbuf);
|
||
|
au->size = vb2_get_plane_payload(&vbuf->vb2_buf, 0);
|
||
|
au->dts = vbuf->vb2_buf.timestamp;
|
||
|
|
||
|
/* dump access unit */
|
||
|
dump_au(ctx, au);
|
||
|
|
||
|
/* enable the hardware */
|
||
|
if (!dec->pm) {
|
||
|
ret = delta_get_sync(ctx);
|
||
|
if (ret)
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
/* decode this access unit */
|
||
|
ret = call_dec_op(dec, decode, ctx, au);
|
||
|
|
||
|
/*
|
||
|
* if the (-ENODATA) value is returned, it refers to the interlaced
|
||
|
* stream case for which 2 access units are needed to get 1 frame.
|
||
|
* So, this returned value doesn't mean that the decoding fails, but
|
||
|
* indicates that the timestamp information of the access unit shall
|
||
|
* not be taken into account, and that the V4L2 buffer associated with
|
||
|
* the access unit shall be flagged with V4L2_BUF_FLAG_ERROR to inform
|
||
|
* the user of this situation
|
||
|
*/
|
||
|
if (ret == -ENODATA) {
|
||
|
discard = true;
|
||
|
} else if (ret) {
|
||
|
dev_err(delta->dev, "%s decoding failed (%d)\n",
|
||
|
ctx->name, ret);
|
||
|
|
||
|
/* disable the hardware */
|
||
|
if (!dec->pm)
|
||
|
delta_put_autosuspend(ctx);
|
||
|
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
/* disable the hardware */
|
||
|
if (!dec->pm)
|
||
|
delta_put_autosuspend(ctx);
|
||
|
|
||
|
/* push au timestamp in FIFO */
|
||
|
if (!discard)
|
||
|
delta_push_dts(ctx, au->dts);
|
||
|
|
||
|
/* get available decoded frames */
|
||
|
while (1) {
|
||
|
ret = call_dec_op(dec, get_frame, ctx, &frame);
|
||
|
if (ret == -ENODATA) {
|
||
|
/* no more decoded frames */
|
||
|
goto out;
|
||
|
}
|
||
|
if (ret) {
|
||
|
dev_err(delta->dev, "%s cannot get decoded frame (%d)\n",
|
||
|
ctx->name, ret);
|
||
|
goto out;
|
||
|
}
|
||
|
if (!frame) {
|
||
|
dev_err(delta->dev,
|
||
|
"%s NULL decoded frame\n",
|
||
|
ctx->name);
|
||
|
goto out;
|
||
|
}
|
||
|
|
||
|
/* pop timestamp and mark frame with it */
|
||
|
delta_pop_dts(ctx, &frame->dts);
|
||
|
|
||
|
/* release decoded frame to user */
|
||
|
delta_frame_done(ctx, frame, 0);
|
||
|
}
|
||
|
|
||
|
out:
|
||
|
requeue_free_frames(ctx);
|
||
|
delta_au_done(ctx, au, (discard ? -ENODATA : 0));
|
||
|
mutex_unlock(&ctx->lock);
|
||
|
v4l2_m2m_job_finish(delta->m2m_dev, ctx->fh.m2m_ctx);
|
||
|
return;
|
||
|
|
||
|
err:
|
||
|
requeue_free_frames(ctx);
|
||
|
delta_au_done(ctx, au, ret);
|
||
|
mutex_unlock(&ctx->lock);
|
||
|
v4l2_m2m_job_finish(delta->m2m_dev, ctx->fh.m2m_ctx);
|
||
|
}
|
||
|
|
||
|
static void delta_device_run(void *priv)
|
||
|
{
|
||
|
struct delta_ctx *ctx = priv;
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
|
||
|
queue_work(delta->work_queue, &ctx->run_work);
|
||
|
}
|
||
|
|
||
|
static void delta_job_abort(void *priv)
|
||
|
{
|
||
|
struct delta_ctx *ctx = priv;
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
|
||
|
dev_dbg(delta->dev, "%s aborting job\n", ctx->name);
|
||
|
|
||
|
ctx->aborting = true;
|
||
|
}
|
||
|
|
||
|
static int delta_job_ready(void *priv)
|
||
|
{
|
||
|
struct delta_ctx *ctx = priv;
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
int src_bufs = v4l2_m2m_num_src_bufs_ready(ctx->fh.m2m_ctx);
|
||
|
|
||
|
if (!src_bufs) {
|
||
|
dev_dbg(delta->dev, "%s not ready: not enough video buffers.\n",
|
||
|
ctx->name);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
if (!v4l2_m2m_num_dst_bufs_ready(ctx->fh.m2m_ctx)) {
|
||
|
dev_dbg(delta->dev, "%s not ready: not enough video capture buffers.\n",
|
||
|
ctx->name);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
if (ctx->aborting) {
|
||
|
dev_dbg(delta->dev, "%s job not ready: aborting\n", ctx->name);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
dev_dbg(delta->dev, "%s job ready\n", ctx->name);
|
||
|
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
/* mem-to-mem ops */
|
||
|
static const struct v4l2_m2m_ops delta_m2m_ops = {
|
||
|
.device_run = delta_device_run,
|
||
|
.job_ready = delta_job_ready,
|
||
|
.job_abort = delta_job_abort,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* VB2 queue operations
|
||
|
*/
|
||
|
|
||
|
static int delta_vb2_au_queue_setup(struct vb2_queue *vq,
|
||
|
unsigned int *num_buffers,
|
||
|
unsigned int *num_planes,
|
||
|
unsigned int sizes[],
|
||
|
struct device *alloc_devs[])
|
||
|
{
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(vq);
|
||
|
unsigned int size = ctx->max_au_size;
|
||
|
|
||
|
if (*num_planes)
|
||
|
return sizes[0] < size ? -EINVAL : 0;
|
||
|
|
||
|
*num_planes = 1;
|
||
|
if (*num_buffers < 1)
|
||
|
*num_buffers = 1;
|
||
|
if (*num_buffers > DELTA_MAX_AUS)
|
||
|
*num_buffers = DELTA_MAX_AUS;
|
||
|
|
||
|
sizes[0] = size;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_vb2_au_prepare(struct vb2_buffer *vb)
|
||
|
{
|
||
|
struct vb2_queue *q = vb->vb2_queue;
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||
|
struct delta_au *au = to_au(vbuf);
|
||
|
|
||
|
if (!au->prepared) {
|
||
|
/* get memory addresses */
|
||
|
au->vaddr = vb2_plane_vaddr(&au->vbuf.vb2_buf, 0);
|
||
|
au->paddr = vb2_dma_contig_plane_dma_addr
|
||
|
(&au->vbuf.vb2_buf, 0);
|
||
|
au->prepared = true;
|
||
|
dev_dbg(delta->dev, "%s au[%d] prepared; virt=0x%p, phy=0x%pad\n",
|
||
|
ctx->name, vb->index, au->vaddr, &au->paddr);
|
||
|
}
|
||
|
|
||
|
if (vbuf->field == V4L2_FIELD_ANY)
|
||
|
vbuf->field = V4L2_FIELD_NONE;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_setup_frame(struct delta_ctx *ctx,
|
||
|
struct delta_frame *frame)
|
||
|
{
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
|
||
|
if (frame->index >= DELTA_MAX_FRAMES) {
|
||
|
dev_err(delta->dev,
|
||
|
"%s frame index=%d exceeds output frame count (%d)\n",
|
||
|
ctx->name, frame->index, DELTA_MAX_FRAMES);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if (ctx->nb_of_frames >= DELTA_MAX_FRAMES) {
|
||
|
dev_err(delta->dev,
|
||
|
"%s number of frames exceeds output frame count (%d > %d)\n",
|
||
|
ctx->name, ctx->nb_of_frames, DELTA_MAX_FRAMES);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
if (frame->index != ctx->nb_of_frames) {
|
||
|
dev_warn(delta->dev,
|
||
|
"%s frame index discontinuity detected, expected %d, got %d\n",
|
||
|
ctx->name, ctx->nb_of_frames, frame->index);
|
||
|
}
|
||
|
|
||
|
frame->state = DELTA_FRAME_FREE;
|
||
|
ctx->frames[ctx->nb_of_frames] = frame;
|
||
|
ctx->nb_of_frames++;
|
||
|
|
||
|
/* setup frame on decoder side */
|
||
|
return call_dec_op(dec, setup_frame, ctx, frame);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* default implementation of get_frameinfo decoder ops
|
||
|
* matching frame information from stream information
|
||
|
* & with default pixel format & default alignment.
|
||
|
*/
|
||
|
int delta_get_frameinfo_default(struct delta_ctx *ctx,
|
||
|
struct delta_frameinfo *frameinfo)
|
||
|
{
|
||
|
struct delta_streaminfo *streaminfo = &ctx->streaminfo;
|
||
|
|
||
|
memset(frameinfo, 0, sizeof(*frameinfo));
|
||
|
frameinfo->pixelformat = V4L2_PIX_FMT_NV12;
|
||
|
frameinfo->width = streaminfo->width;
|
||
|
frameinfo->height = streaminfo->height;
|
||
|
frameinfo->aligned_width = ALIGN(streaminfo->width,
|
||
|
DELTA_WIDTH_ALIGNMENT);
|
||
|
frameinfo->aligned_height = ALIGN(streaminfo->height,
|
||
|
DELTA_HEIGHT_ALIGNMENT);
|
||
|
frameinfo->size = frame_size(frameinfo->aligned_width,
|
||
|
frameinfo->aligned_height,
|
||
|
frameinfo->pixelformat);
|
||
|
if (streaminfo->flags & DELTA_STREAMINFO_FLAG_CROP) {
|
||
|
frameinfo->flags |= DELTA_FRAMEINFO_FLAG_CROP;
|
||
|
frameinfo->crop = streaminfo->crop;
|
||
|
}
|
||
|
if (streaminfo->flags & DELTA_STREAMINFO_FLAG_PIXELASPECT) {
|
||
|
frameinfo->flags |= DELTA_FRAMEINFO_FLAG_PIXELASPECT;
|
||
|
frameinfo->pixelaspect = streaminfo->pixelaspect;
|
||
|
}
|
||
|
frameinfo->field = streaminfo->field;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* default implementation of recycle decoder ops
|
||
|
* consisting to relax the "decoded" frame state
|
||
|
*/
|
||
|
int delta_recycle_default(struct delta_ctx *pctx,
|
||
|
struct delta_frame *frame)
|
||
|
{
|
||
|
frame->state &= ~DELTA_FRAME_DEC;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void dump_frames_status(struct delta_ctx *ctx)
|
||
|
{
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
unsigned int i;
|
||
|
struct delta_frame *frame;
|
||
|
unsigned char str[100] = "";
|
||
|
|
||
|
dev_info(delta->dev,
|
||
|
"%s dumping frames status...\n", ctx->name);
|
||
|
|
||
|
for (i = 0; i < ctx->nb_of_frames; i++) {
|
||
|
frame = ctx->frames[i];
|
||
|
dev_info(delta->dev,
|
||
|
"%s frame[%d] %s\n",
|
||
|
ctx->name, frame->index,
|
||
|
frame_state_str(frame->state,
|
||
|
str, sizeof(str)));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
int delta_get_free_frame(struct delta_ctx *ctx,
|
||
|
struct delta_frame **pframe)
|
||
|
{
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct vb2_v4l2_buffer *vbuf;
|
||
|
struct delta_frame *frame;
|
||
|
|
||
|
*pframe = NULL;
|
||
|
|
||
|
vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
|
||
|
if (!vbuf) {
|
||
|
dev_err(delta->dev, "%s no frame available",
|
||
|
ctx->name);
|
||
|
return -EIO;
|
||
|
}
|
||
|
|
||
|
frame = to_frame(vbuf);
|
||
|
frame->state &= ~DELTA_FRAME_M2M;
|
||
|
if (frame->state != DELTA_FRAME_FREE) {
|
||
|
dev_err(delta->dev,
|
||
|
"%s frame[%d] is not free\n",
|
||
|
ctx->name, frame->index);
|
||
|
dump_frames_status(ctx);
|
||
|
return -ENODATA;
|
||
|
}
|
||
|
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s get free frame[%d]\n", ctx->name, frame->index);
|
||
|
|
||
|
*pframe = frame;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int delta_get_sync(struct delta_ctx *ctx)
|
||
|
{
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
int ret = 0;
|
||
|
|
||
|
/* enable the hardware */
|
||
|
ret = pm_runtime_resume_and_get(delta->dev);
|
||
|
if (ret < 0) {
|
||
|
dev_err(delta->dev, "%s pm_runtime_resume_and_get failed (%d)\n",
|
||
|
__func__, ret);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void delta_put_autosuspend(struct delta_ctx *ctx)
|
||
|
{
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
|
||
|
pm_runtime_put_autosuspend(delta->dev);
|
||
|
}
|
||
|
|
||
|
static void delta_vb2_au_queue(struct vb2_buffer *vb)
|
||
|
{
|
||
|
struct vb2_queue *q = vb->vb2_queue;
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||
|
|
||
|
v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
|
||
|
}
|
||
|
|
||
|
static int delta_vb2_au_start_streaming(struct vb2_queue *q,
|
||
|
unsigned int count)
|
||
|
{
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
struct delta_au *au;
|
||
|
int ret = 0;
|
||
|
struct vb2_v4l2_buffer *vbuf = NULL;
|
||
|
struct delta_streaminfo *streaminfo = &ctx->streaminfo;
|
||
|
struct delta_frameinfo *frameinfo = &ctx->frameinfo;
|
||
|
unsigned char str1[100] = "";
|
||
|
unsigned char str2[100] = "";
|
||
|
|
||
|
if ((ctx->state != DELTA_STATE_WF_FORMAT) &&
|
||
|
(ctx->state != DELTA_STATE_WF_STREAMINFO))
|
||
|
return 0;
|
||
|
|
||
|
if (ctx->state == DELTA_STATE_WF_FORMAT) {
|
||
|
/* open decoder if not yet done */
|
||
|
ret = delta_open_decoder(ctx,
|
||
|
ctx->streaminfo.streamformat,
|
||
|
ctx->frameinfo.pixelformat, &dec);
|
||
|
if (ret)
|
||
|
goto err;
|
||
|
ctx->dec = dec;
|
||
|
ctx->state = DELTA_STATE_WF_STREAMINFO;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* first buffer should contain stream header,
|
||
|
* decode it to get the infos related to stream
|
||
|
* such as width, height, dpb, ...
|
||
|
*/
|
||
|
vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
|
||
|
if (!vbuf) {
|
||
|
dev_err(delta->dev, "%s failed to start streaming, no stream header buffer enqueued\n",
|
||
|
ctx->name);
|
||
|
ret = -EINVAL;
|
||
|
goto err;
|
||
|
}
|
||
|
au = to_au(vbuf);
|
||
|
au->size = vb2_get_plane_payload(&vbuf->vb2_buf, 0);
|
||
|
au->dts = vbuf->vb2_buf.timestamp;
|
||
|
|
||
|
delta_push_dts(ctx, au->dts);
|
||
|
|
||
|
/* dump access unit */
|
||
|
dump_au(ctx, au);
|
||
|
|
||
|
/* decode this access unit */
|
||
|
ret = call_dec_op(dec, decode, ctx, au);
|
||
|
if (ret) {
|
||
|
dev_err(delta->dev, "%s failed to start streaming, header decoding failed (%d)\n",
|
||
|
ctx->name, ret);
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
ret = call_dec_op(dec, get_streaminfo, ctx, streaminfo);
|
||
|
if (ret) {
|
||
|
dev_dbg_ratelimited(delta->dev,
|
||
|
"%s failed to start streaming, valid stream header not yet decoded\n",
|
||
|
ctx->name);
|
||
|
goto err;
|
||
|
}
|
||
|
ctx->flags |= DELTA_FLAG_STREAMINFO;
|
||
|
|
||
|
ret = call_dec_op(dec, get_frameinfo, ctx, frameinfo);
|
||
|
if (ret)
|
||
|
goto err;
|
||
|
ctx->flags |= DELTA_FLAG_FRAMEINFO;
|
||
|
|
||
|
ctx->state = DELTA_STATE_READY;
|
||
|
|
||
|
dev_dbg(delta->dev, "%s %s => %s\n", ctx->name,
|
||
|
delta_streaminfo_str(streaminfo, str1, sizeof(str1)),
|
||
|
delta_frameinfo_str(frameinfo, str2, sizeof(str2)));
|
||
|
|
||
|
delta_au_done(ctx, au, ret);
|
||
|
return 0;
|
||
|
|
||
|
err:
|
||
|
/*
|
||
|
* return all buffers to vb2 in QUEUED state.
|
||
|
* This will give ownership back to userspace
|
||
|
*/
|
||
|
if (vbuf)
|
||
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_QUEUED);
|
||
|
|
||
|
while ((vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
|
||
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_QUEUED);
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void delta_vb2_au_stop_streaming(struct vb2_queue *q)
|
||
|
{
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct vb2_v4l2_buffer *vbuf;
|
||
|
|
||
|
delta_flush_dts(ctx);
|
||
|
|
||
|
/* return all buffers to vb2 in ERROR state */
|
||
|
while ((vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx)))
|
||
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
|
||
|
|
||
|
ctx->au_num = 0;
|
||
|
|
||
|
ctx->aborting = false;
|
||
|
}
|
||
|
|
||
|
static int delta_vb2_frame_queue_setup(struct vb2_queue *vq,
|
||
|
unsigned int *num_buffers,
|
||
|
unsigned int *num_planes,
|
||
|
unsigned int sizes[],
|
||
|
struct device *alloc_devs[])
|
||
|
{
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(vq);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct delta_streaminfo *streaminfo = &ctx->streaminfo;
|
||
|
struct delta_frameinfo *frameinfo = &ctx->frameinfo;
|
||
|
unsigned int size = frameinfo->size;
|
||
|
|
||
|
/*
|
||
|
* the number of output buffers needed for decoding =
|
||
|
* user need (*num_buffers given, usually for display pipeline) +
|
||
|
* stream need (streaminfo->dpb) +
|
||
|
* decoding peak smoothing (depends on DELTA IP perf)
|
||
|
*/
|
||
|
if (*num_buffers < DELTA_MIN_FRAME_USER) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s num_buffers too low (%d), increasing to %d\n",
|
||
|
ctx->name, *num_buffers, DELTA_MIN_FRAME_USER);
|
||
|
*num_buffers = DELTA_MIN_FRAME_USER;
|
||
|
}
|
||
|
|
||
|
*num_buffers += streaminfo->dpb + DELTA_PEAK_FRAME_SMOOTHING;
|
||
|
|
||
|
if (*num_buffers > DELTA_MAX_FRAMES) {
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s output frame count too high (%d), cut to %d\n",
|
||
|
ctx->name, *num_buffers, DELTA_MAX_FRAMES);
|
||
|
*num_buffers = DELTA_MAX_FRAMES;
|
||
|
}
|
||
|
|
||
|
if (*num_planes)
|
||
|
return sizes[0] < size ? -EINVAL : 0;
|
||
|
|
||
|
/* single plane for Y and CbCr */
|
||
|
*num_planes = 1;
|
||
|
|
||
|
sizes[0] = size;
|
||
|
|
||
|
ctx->nb_of_frames = 0;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_vb2_frame_prepare(struct vb2_buffer *vb)
|
||
|
{
|
||
|
struct vb2_queue *q = vb->vb2_queue;
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||
|
struct delta_frame *frame = to_frame(vbuf);
|
||
|
int ret = 0;
|
||
|
|
||
|
if (!frame->prepared) {
|
||
|
frame->index = vbuf->vb2_buf.index;
|
||
|
frame->vaddr = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
|
||
|
frame->paddr = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0);
|
||
|
frame->info = ctx->frameinfo;
|
||
|
|
||
|
ret = delta_setup_frame(ctx, frame);
|
||
|
if (ret) {
|
||
|
dev_err(delta->dev,
|
||
|
"%s setup_frame() failed (%d)\n",
|
||
|
ctx->name, ret);
|
||
|
return ret;
|
||
|
}
|
||
|
frame->prepared = true;
|
||
|
dev_dbg(delta->dev,
|
||
|
"%s frame[%d] prepared; virt=0x%p, phy=0x%pad\n",
|
||
|
ctx->name, vb->index, frame->vaddr,
|
||
|
&frame->paddr);
|
||
|
}
|
||
|
|
||
|
frame->flags = vbuf->flags;
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static void delta_vb2_frame_finish(struct vb2_buffer *vb)
|
||
|
{
|
||
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||
|
struct delta_frame *frame = to_frame(vbuf);
|
||
|
|
||
|
/* update V4L2 fields for user */
|
||
|
vb2_set_plane_payload(&vbuf->vb2_buf, 0, frame->info.size);
|
||
|
vb->timestamp = frame->dts;
|
||
|
vbuf->field = frame->field;
|
||
|
vbuf->flags = frame->flags;
|
||
|
}
|
||
|
|
||
|
static void delta_vb2_frame_queue(struct vb2_buffer *vb)
|
||
|
{
|
||
|
struct vb2_queue *q = vb->vb2_queue;
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
|
||
|
struct delta_frame *frame = to_frame(vbuf);
|
||
|
|
||
|
if (ctx->state == DELTA_STATE_WF_EOS) {
|
||
|
/* new frame available, EOS can now be completed */
|
||
|
delta_complete_eos(ctx, frame);
|
||
|
|
||
|
ctx->state = DELTA_STATE_EOS;
|
||
|
|
||
|
/* return, no need to recycle this buffer to decoder */
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
/* recycle this frame */
|
||
|
delta_recycle(ctx, frame);
|
||
|
}
|
||
|
|
||
|
static void delta_vb2_frame_stop_streaming(struct vb2_queue *q)
|
||
|
{
|
||
|
struct delta_ctx *ctx = vb2_get_drv_priv(q);
|
||
|
struct vb2_v4l2_buffer *vbuf;
|
||
|
struct delta_frame *frame;
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
unsigned int i;
|
||
|
|
||
|
delta_flush_dts(ctx);
|
||
|
|
||
|
call_dec_op(dec, flush, ctx);
|
||
|
|
||
|
/*
|
||
|
* return all buffers to vb2 in ERROR state
|
||
|
* & reset each frame state to OUT
|
||
|
*/
|
||
|
for (i = 0; i < ctx->nb_of_frames; i++) {
|
||
|
frame = ctx->frames[i];
|
||
|
if (!(frame->state & DELTA_FRAME_OUT)) {
|
||
|
vbuf = &frame->vbuf;
|
||
|
v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
|
||
|
}
|
||
|
frame->state = DELTA_FRAME_OUT;
|
||
|
}
|
||
|
|
||
|
ctx->frame_num = 0;
|
||
|
|
||
|
ctx->aborting = false;
|
||
|
}
|
||
|
|
||
|
/* VB2 queue ops */
|
||
|
static const struct vb2_ops delta_vb2_au_ops = {
|
||
|
.queue_setup = delta_vb2_au_queue_setup,
|
||
|
.buf_prepare = delta_vb2_au_prepare,
|
||
|
.buf_queue = delta_vb2_au_queue,
|
||
|
.wait_prepare = vb2_ops_wait_prepare,
|
||
|
.wait_finish = vb2_ops_wait_finish,
|
||
|
.start_streaming = delta_vb2_au_start_streaming,
|
||
|
.stop_streaming = delta_vb2_au_stop_streaming,
|
||
|
};
|
||
|
|
||
|
static const struct vb2_ops delta_vb2_frame_ops = {
|
||
|
.queue_setup = delta_vb2_frame_queue_setup,
|
||
|
.buf_prepare = delta_vb2_frame_prepare,
|
||
|
.buf_finish = delta_vb2_frame_finish,
|
||
|
.buf_queue = delta_vb2_frame_queue,
|
||
|
.wait_prepare = vb2_ops_wait_prepare,
|
||
|
.wait_finish = vb2_ops_wait_finish,
|
||
|
.stop_streaming = delta_vb2_frame_stop_streaming,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* V4L2 file operations
|
||
|
*/
|
||
|
|
||
|
static int queue_init(void *priv,
|
||
|
struct vb2_queue *src_vq, struct vb2_queue *dst_vq)
|
||
|
{
|
||
|
struct vb2_queue *q;
|
||
|
struct delta_ctx *ctx = priv;
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
int ret;
|
||
|
|
||
|
/* setup vb2 queue for stream input */
|
||
|
q = src_vq;
|
||
|
q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
|
||
|
q->io_modes = VB2_MMAP | VB2_DMABUF;
|
||
|
q->drv_priv = ctx;
|
||
|
/* overload vb2 buf with private au struct */
|
||
|
q->buf_struct_size = sizeof(struct delta_au);
|
||
|
q->ops = &delta_vb2_au_ops;
|
||
|
q->mem_ops = &vb2_dma_contig_memops;
|
||
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
||
|
q->lock = &delta->lock;
|
||
|
q->dev = delta->dev;
|
||
|
|
||
|
ret = vb2_queue_init(q);
|
||
|
if (ret)
|
||
|
return ret;
|
||
|
|
||
|
/* setup vb2 queue for frame output */
|
||
|
q = dst_vq;
|
||
|
q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
||
|
q->io_modes = VB2_MMAP | VB2_DMABUF;
|
||
|
q->drv_priv = ctx;
|
||
|
/* overload vb2 buf with private frame struct */
|
||
|
q->buf_struct_size = sizeof(struct delta_frame)
|
||
|
+ DELTA_MAX_FRAME_PRIV_SIZE;
|
||
|
q->ops = &delta_vb2_frame_ops;
|
||
|
q->mem_ops = &vb2_dma_contig_memops;
|
||
|
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
|
||
|
q->lock = &delta->lock;
|
||
|
q->dev = delta->dev;
|
||
|
|
||
|
return vb2_queue_init(q);
|
||
|
}
|
||
|
|
||
|
static int delta_open(struct file *file)
|
||
|
{
|
||
|
struct delta_dev *delta = video_drvdata(file);
|
||
|
struct delta_ctx *ctx = NULL;
|
||
|
int ret = 0;
|
||
|
|
||
|
mutex_lock(&delta->lock);
|
||
|
|
||
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
||
|
if (!ctx) {
|
||
|
ret = -ENOMEM;
|
||
|
goto err;
|
||
|
}
|
||
|
ctx->dev = delta;
|
||
|
|
||
|
v4l2_fh_init(&ctx->fh, video_devdata(file));
|
||
|
file->private_data = &ctx->fh;
|
||
|
v4l2_fh_add(&ctx->fh);
|
||
|
|
||
|
INIT_WORK(&ctx->run_work, delta_run_work);
|
||
|
mutex_init(&ctx->lock);
|
||
|
|
||
|
ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(delta->m2m_dev, ctx,
|
||
|
queue_init);
|
||
|
if (IS_ERR(ctx->fh.m2m_ctx)) {
|
||
|
ret = PTR_ERR(ctx->fh.m2m_ctx);
|
||
|
dev_err(delta->dev, "%s failed to initialize m2m context (%d)\n",
|
||
|
DELTA_PREFIX, ret);
|
||
|
goto err_fh_del;
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* wait stream format to determine which
|
||
|
* decoder to open
|
||
|
*/
|
||
|
ctx->state = DELTA_STATE_WF_FORMAT;
|
||
|
|
||
|
INIT_LIST_HEAD(&ctx->dts);
|
||
|
|
||
|
/* set the instance name */
|
||
|
delta->instance_id++;
|
||
|
snprintf(ctx->name, sizeof(ctx->name), "[%3d:----]",
|
||
|
delta->instance_id);
|
||
|
|
||
|
/* default parameters for frame and stream */
|
||
|
set_default_params(ctx);
|
||
|
|
||
|
/* enable ST231 clocks */
|
||
|
if (delta->clk_st231)
|
||
|
if (clk_prepare_enable(delta->clk_st231))
|
||
|
dev_warn(delta->dev, "failed to enable st231 clk\n");
|
||
|
|
||
|
/* enable FLASH_PROMIP clock */
|
||
|
if (delta->clk_flash_promip)
|
||
|
if (clk_prepare_enable(delta->clk_flash_promip))
|
||
|
dev_warn(delta->dev, "failed to enable delta promip clk\n");
|
||
|
|
||
|
mutex_unlock(&delta->lock);
|
||
|
|
||
|
dev_dbg(delta->dev, "%s decoder instance created\n", ctx->name);
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
err_fh_del:
|
||
|
v4l2_fh_del(&ctx->fh);
|
||
|
v4l2_fh_exit(&ctx->fh);
|
||
|
kfree(ctx);
|
||
|
err:
|
||
|
mutex_unlock(&delta->lock);
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int delta_release(struct file *file)
|
||
|
{
|
||
|
struct delta_ctx *ctx = to_ctx(file->private_data);
|
||
|
struct delta_dev *delta = ctx->dev;
|
||
|
const struct delta_dec *dec = ctx->dec;
|
||
|
|
||
|
mutex_lock(&delta->lock);
|
||
|
|
||
|
/* close decoder */
|
||
|
call_dec_op(dec, close, ctx);
|
||
|
|
||
|
/*
|
||
|
* trace a summary of instance
|
||
|
* before closing (debug purpose)
|
||
|
*/
|
||
|
delta_trace_summary(ctx);
|
||
|
|
||
|
v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
|
||
|
|
||
|
v4l2_fh_del(&ctx->fh);
|
||
|
v4l2_fh_exit(&ctx->fh);
|
||
|
|
||
|
/* disable ST231 clocks */
|
||
|
if (delta->clk_st231)
|
||
|
clk_disable_unprepare(delta->clk_st231);
|
||
|
|
||
|
/* disable FLASH_PROMIP clock */
|
||
|
if (delta->clk_flash_promip)
|
||
|
clk_disable_unprepare(delta->clk_flash_promip);
|
||
|
|
||
|
dev_dbg(delta->dev, "%s decoder instance released\n", ctx->name);
|
||
|
|
||
|
kfree(ctx);
|
||
|
|
||
|
mutex_unlock(&delta->lock);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* V4L2 file ops */
|
||
|
static const struct v4l2_file_operations delta_fops = {
|
||
|
.owner = THIS_MODULE,
|
||
|
.open = delta_open,
|
||
|
.release = delta_release,
|
||
|
.unlocked_ioctl = video_ioctl2,
|
||
|
.mmap = v4l2_m2m_fop_mmap,
|
||
|
.poll = v4l2_m2m_fop_poll,
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* Platform device operations
|
||
|
*/
|
||
|
|
||
|
static int delta_register_device(struct delta_dev *delta)
|
||
|
{
|
||
|
int ret;
|
||
|
struct video_device *vdev;
|
||
|
|
||
|
if (!delta)
|
||
|
return -ENODEV;
|
||
|
|
||
|
delta->m2m_dev = v4l2_m2m_init(&delta_m2m_ops);
|
||
|
if (IS_ERR(delta->m2m_dev)) {
|
||
|
dev_err(delta->dev, "%s failed to initialize v4l2-m2m device\n",
|
||
|
DELTA_PREFIX);
|
||
|
ret = PTR_ERR(delta->m2m_dev);
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
vdev = video_device_alloc();
|
||
|
if (!vdev) {
|
||
|
dev_err(delta->dev, "%s failed to allocate video device\n",
|
||
|
DELTA_PREFIX);
|
||
|
ret = -ENOMEM;
|
||
|
goto err_m2m_release;
|
||
|
}
|
||
|
|
||
|
vdev->fops = &delta_fops;
|
||
|
vdev->ioctl_ops = &delta_ioctl_ops;
|
||
|
vdev->release = video_device_release;
|
||
|
vdev->lock = &delta->lock;
|
||
|
vdev->vfl_dir = VFL_DIR_M2M;
|
||
|
vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M;
|
||
|
vdev->v4l2_dev = &delta->v4l2_dev;
|
||
|
snprintf(vdev->name, sizeof(vdev->name), "%s-%s",
|
||
|
DELTA_NAME, DELTA_FW_VERSION);
|
||
|
|
||
|
ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
|
||
|
if (ret) {
|
||
|
dev_err(delta->dev, "%s failed to register video device\n",
|
||
|
DELTA_PREFIX);
|
||
|
goto err_vdev_release;
|
||
|
}
|
||
|
|
||
|
delta->vdev = vdev;
|
||
|
video_set_drvdata(vdev, delta);
|
||
|
return 0;
|
||
|
|
||
|
err_vdev_release:
|
||
|
video_device_release(vdev);
|
||
|
err_m2m_release:
|
||
|
v4l2_m2m_release(delta->m2m_dev);
|
||
|
err:
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void delta_unregister_device(struct delta_dev *delta)
|
||
|
{
|
||
|
if (!delta)
|
||
|
return;
|
||
|
|
||
|
if (delta->m2m_dev)
|
||
|
v4l2_m2m_release(delta->m2m_dev);
|
||
|
|
||
|
video_unregister_device(delta->vdev);
|
||
|
}
|
||
|
|
||
|
static int delta_probe(struct platform_device *pdev)
|
||
|
{
|
||
|
struct delta_dev *delta;
|
||
|
struct device *dev = &pdev->dev;
|
||
|
int ret;
|
||
|
|
||
|
delta = devm_kzalloc(dev, sizeof(*delta), GFP_KERNEL);
|
||
|
if (!delta) {
|
||
|
ret = -ENOMEM;
|
||
|
goto err;
|
||
|
}
|
||
|
|
||
|
delta->dev = dev;
|
||
|
delta->pdev = pdev;
|
||
|
platform_set_drvdata(pdev, delta);
|
||
|
|
||
|
mutex_init(&delta->lock);
|
||
|
|
||
|
/* get clock resources */
|
||
|
delta->clk_delta = devm_clk_get(dev, "delta");
|
||
|
if (IS_ERR(delta->clk_delta)) {
|
||
|
dev_dbg(dev, "%s can't get delta clock\n", DELTA_PREFIX);
|
||
|
delta->clk_delta = NULL;
|
||
|
}
|
||
|
|
||
|
delta->clk_st231 = devm_clk_get(dev, "delta-st231");
|
||
|
if (IS_ERR(delta->clk_st231)) {
|
||
|
dev_dbg(dev, "%s can't get delta-st231 clock\n", DELTA_PREFIX);
|
||
|
delta->clk_st231 = NULL;
|
||
|
}
|
||
|
|
||
|
delta->clk_flash_promip = devm_clk_get(dev, "delta-flash-promip");
|
||
|
if (IS_ERR(delta->clk_flash_promip)) {
|
||
|
dev_dbg(dev, "%s can't get delta-flash-promip clock\n",
|
||
|
DELTA_PREFIX);
|
||
|
delta->clk_flash_promip = NULL;
|
||
|
}
|
||
|
|
||
|
/* init pm_runtime used for power management */
|
||
|
pm_runtime_set_autosuspend_delay(dev, DELTA_HW_AUTOSUSPEND_DELAY_MS);
|
||
|
pm_runtime_use_autosuspend(dev);
|
||
|
pm_runtime_set_suspended(dev);
|
||
|
pm_runtime_enable(dev);
|
||
|
|
||
|
/* init firmware ipc channel */
|
||
|
ret = delta_ipc_init(delta);
|
||
|
if (ret) {
|
||
|
dev_err(delta->dev, "%s failed to initialize firmware ipc channel\n",
|
||
|
DELTA_PREFIX);
|
||
|
goto err_pm_disable;
|
||
|
}
|
||
|
|
||
|
/* register all available decoders */
|
||
|
register_decoders(delta);
|
||
|
|
||
|
/* register all supported formats */
|
||
|
register_formats(delta);
|
||
|
|
||
|
/* register on V4L2 */
|
||
|
ret = v4l2_device_register(dev, &delta->v4l2_dev);
|
||
|
if (ret) {
|
||
|
dev_err(delta->dev, "%s failed to register V4L2 device\n",
|
||
|
DELTA_PREFIX);
|
||
|
goto err_pm_disable;
|
||
|
}
|
||
|
|
||
|
delta->work_queue = create_workqueue(DELTA_NAME);
|
||
|
if (!delta->work_queue) {
|
||
|
dev_err(delta->dev, "%s failed to allocate work queue\n",
|
||
|
DELTA_PREFIX);
|
||
|
ret = -ENOMEM;
|
||
|
goto err_v4l2;
|
||
|
}
|
||
|
|
||
|
/* register device */
|
||
|
ret = delta_register_device(delta);
|
||
|
if (ret)
|
||
|
goto err_work_queue;
|
||
|
|
||
|
dev_info(dev, "%s %s registered as /dev/video%d\n",
|
||
|
DELTA_PREFIX, delta->vdev->name, delta->vdev->num);
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
err_work_queue:
|
||
|
destroy_workqueue(delta->work_queue);
|
||
|
err_v4l2:
|
||
|
v4l2_device_unregister(&delta->v4l2_dev);
|
||
|
err_pm_disable:
|
||
|
pm_runtime_disable(dev);
|
||
|
err:
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static int delta_remove(struct platform_device *pdev)
|
||
|
{
|
||
|
struct delta_dev *delta = platform_get_drvdata(pdev);
|
||
|
|
||
|
delta_ipc_exit(delta);
|
||
|
|
||
|
delta_unregister_device(delta);
|
||
|
|
||
|
destroy_workqueue(delta->work_queue);
|
||
|
|
||
|
pm_runtime_put_autosuspend(delta->dev);
|
||
|
pm_runtime_disable(delta->dev);
|
||
|
|
||
|
v4l2_device_unregister(&delta->v4l2_dev);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_runtime_suspend(struct device *dev)
|
||
|
{
|
||
|
struct delta_dev *delta = dev_get_drvdata(dev);
|
||
|
|
||
|
if (delta->clk_delta)
|
||
|
clk_disable_unprepare(delta->clk_delta);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int delta_runtime_resume(struct device *dev)
|
||
|
{
|
||
|
struct delta_dev *delta = dev_get_drvdata(dev);
|
||
|
|
||
|
if (delta->clk_delta)
|
||
|
if (clk_prepare_enable(delta->clk_delta))
|
||
|
dev_warn(dev, "failed to prepare/enable delta clk\n");
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/* PM ops */
|
||
|
static const struct dev_pm_ops delta_pm_ops = {
|
||
|
.runtime_suspend = delta_runtime_suspend,
|
||
|
.runtime_resume = delta_runtime_resume,
|
||
|
};
|
||
|
|
||
|
static const struct of_device_id delta_match_types[] = {
|
||
|
{
|
||
|
.compatible = "st,st-delta",
|
||
|
},
|
||
|
{
|
||
|
/* end node */
|
||
|
}
|
||
|
};
|
||
|
|
||
|
MODULE_DEVICE_TABLE(of, delta_match_types);
|
||
|
|
||
|
static struct platform_driver delta_driver = {
|
||
|
.probe = delta_probe,
|
||
|
.remove = delta_remove,
|
||
|
.driver = {
|
||
|
.name = DELTA_NAME,
|
||
|
.of_match_table = delta_match_types,
|
||
|
.pm = &delta_pm_ops},
|
||
|
};
|
||
|
|
||
|
module_platform_driver(delta_driver);
|
||
|
|
||
|
MODULE_LICENSE("GPL");
|
||
|
MODULE_AUTHOR("Hugues Fruchet <hugues.fruchet@st.com>");
|
||
|
MODULE_DESCRIPTION("STMicroelectronics DELTA video decoder V4L2 driver");
|