--- /dev/null
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PC Chen <pc.chen@mediatek.com>
+ * Tiffany Lin <tiffany.lin@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <media/v4l2-event.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "mtk_vcodec_drv.h"
+#include "mtk_vcodec_dec.h"
+#include "mtk_vcodec_intr.h"
+#include "mtk_vcodec_util.h"
+#include "vdec_drv_if.h"
+#include "mtk_vcodec_dec_pm.h"
+
+#define OUT_FMT_IDX 0
+#define CAP_FMT_IDX 0
+
+#define MTK_VDEC_MIN_W 64U
+#define MTK_VDEC_MIN_H 64U
+#define DFT_CFG_WIDTH MTK_VDEC_MIN_W
+#define DFT_CFG_HEIGHT MTK_VDEC_MIN_H
+
+static struct mtk_video_fmt mtk_video_formats[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_H264,
+ .type = MTK_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_VP8,
+ .type = MTK_FMT_DEC,
+ .num_planes = 1,
+ },
+};
+
+static const struct mtk_codec_framesizes mtk_vdec_framesizes[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_H264,
+ .stepwise = { MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
+ MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_VP8,
+ .stepwise = { MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
+ MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
+ },
+};
+
+#define NUM_SUPPORTED_FRAMESIZE ARRAY_SIZE(mtk_vdec_framesizes)
+#define NUM_FORMATS ARRAY_SIZE(mtk_video_formats)
+
+static struct mtk_video_fmt *mtk_vdec_find_format(struct v4l2_format *f)
+{
+ struct mtk_video_fmt *fmt;
+ unsigned int k;
+
+ for (k = 0; k < NUM_FORMATS; k++) {
+ fmt = &mtk_video_formats[k];
+ if (fmt->fourcc == f->fmt.pix_mp.pixelformat)
+ return fmt;
+ }
+
+ return NULL;
+}
+
+static struct mtk_q_data *mtk_vdec_get_q_data(struct mtk_vcodec_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ if (V4L2_TYPE_IS_OUTPUT(type))
+ return &ctx->q_data[MTK_Q_DATA_SRC];
+
+ return &ctx->q_data[MTK_Q_DATA_DST];
+}
+
+/*
+ * This function tries to clean all display buffers, the buffers will return
+ * in display order.
+ * Note the buffers returned from codec driver may still be in driver's
+ * reference list.
+ */
+static struct vb2_buffer *get_display_buffer(struct mtk_vcodec_ctx *ctx)
+{
+ struct vdec_fb *disp_frame_buffer = NULL;
+ struct mtk_video_dec_buf *dstbuf;
+
+ mtk_v4l2_debug(3, "[%d]", ctx->id);
+ if (vdec_if_get_param(ctx,
+ GET_PARAM_DISP_FRAME_BUFFER,
+ &disp_frame_buffer)) {
+ mtk_v4l2_err("[%d]Cannot get param : GET_PARAM_DISP_FRAME_BUFFER",
+ ctx->id);
+ return NULL;
+ }
+
+ if (disp_frame_buffer == NULL) {
+ mtk_v4l2_debug(3, "No display frame buffer");
+ return NULL;
+ }
+
+ dstbuf = container_of(disp_frame_buffer, struct mtk_video_dec_buf,
+ frame_buffer);
+ mutex_lock(&ctx->lock);
+ if (dstbuf->used) {
+ vb2_set_plane_payload(&dstbuf->vb.vb2_buf, 0,
+ ctx->picinfo.y_bs_sz);
+ vb2_set_plane_payload(&dstbuf->vb.vb2_buf, 1,
+ ctx->picinfo.c_bs_sz);
+
+ dstbuf->ready_to_display = true;
+
+ mtk_v4l2_debug(2,
+ "[%d]status=%x queue id=%d to done_list %d",
+ ctx->id, disp_frame_buffer->status,
+ dstbuf->vb.vb2_buf.index,
+ dstbuf->queued_in_vb2);
+
+ v4l2_m2m_buf_done(&dstbuf->vb, VB2_BUF_STATE_DONE);
+ ctx->decoded_frame_cnt++;
+ }
+ mutex_unlock(&ctx->lock);
+ return &dstbuf->vb.vb2_buf;
+}
+
+/*
+ * This function tries to clean all capture buffers that are not used as
+ * reference buffers by codec driver any more
+ * In this case, we need re-queue buffer to vb2 buffer if user space
+ * already returns this buffer to v4l2 or this buffer is just the output of
+ * previous sps/pps/resolution change decode, or do nothing if user
+ * space still owns this buffer
+ */
+static struct vb2_buffer *get_free_buffer(struct mtk_vcodec_ctx *ctx)
+{
+ struct mtk_video_dec_buf *dstbuf;
+ struct vdec_fb *free_frame_buffer = NULL;
+
+ if (vdec_if_get_param(ctx,
+ GET_PARAM_FREE_FRAME_BUFFER,
+ &free_frame_buffer)) {
+ mtk_v4l2_err("[%d] Error!! Cannot get param", ctx->id);
+ return NULL;
+ }
+ if (free_frame_buffer == NULL) {
+ mtk_v4l2_debug(3, " No free frame buffer");
+ return NULL;
+ }
+
+ mtk_v4l2_debug(3, "[%d] tmp_frame_addr = 0x%p",
+ ctx->id, free_frame_buffer);
+
+ dstbuf = container_of(free_frame_buffer, struct mtk_video_dec_buf,
+ frame_buffer);
+
+ mutex_lock(&ctx->lock);
+ if (dstbuf->used) {
+ if ((dstbuf->queued_in_vb2) &&
+ (dstbuf->queued_in_v4l2) &&
+ (free_frame_buffer->status == FB_ST_FREE)) {
+ /*
+ * After decode sps/pps or non-display buffer, we don't
+ * need to return capture buffer to user space, but
+ * just re-queue this capture buffer to vb2 queue.
+ * This reduce overheads that dq/q unused capture
+ * buffer. In this case, queued_in_vb2 = true.
+ */
+ mtk_v4l2_debug(2,
+ "[%d]status=%x queue id=%d to rdy_queue %d",
+ ctx->id, free_frame_buffer->status,
+ dstbuf->vb.vb2_buf.index,
+ dstbuf->queued_in_vb2);
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, &dstbuf->vb);
+ } else if ((dstbuf->queued_in_vb2 == false) &&
+ (dstbuf->queued_in_v4l2 == true)) {
+ /*
+ * If buffer in v4l2 driver but not in vb2 queue yet,
+ * and we get this buffer from free_list, it means
+ * that codec driver do not use this buffer as
+ * reference buffer anymore. We should q buffer to vb2
+ * queue, so later work thread could get this buffer
+ * for decode. In this case, queued_in_vb2 = false
+ * means this buffer is not from previous decode
+ * output.
+ */
+ mtk_v4l2_debug(2,
+ "[%d]status=%x queue id=%d to rdy_queue",
+ ctx->id, free_frame_buffer->status,
+ dstbuf->vb.vb2_buf.index);
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, &dstbuf->vb);
+ dstbuf->queued_in_vb2 = true;
+ } else {
+ /*
+ * Codec driver do not need to reference this capture
+ * buffer and this buffer is not in v4l2 driver.
+ * Then we don't need to do any thing, just add log when
+ * we need to debug buffer flow.
+ * When this buffer q from user space, it could
+ * directly q to vb2 buffer
+ */
+ mtk_v4l2_debug(3, "[%d]status=%x err queue id=%d %d %d",
+ ctx->id, free_frame_buffer->status,
+ dstbuf->vb.vb2_buf.index,
+ dstbuf->queued_in_vb2,
+ dstbuf->queued_in_v4l2);
+ }
+ dstbuf->used = false;
+ }
+ mutex_unlock(&ctx->lock);
+ return &dstbuf->vb.vb2_buf;
+}
+
+static void clean_display_buffer(struct mtk_vcodec_ctx *ctx)
+{
+ struct vb2_buffer *framptr;
+
+ do {
+ framptr = get_display_buffer(ctx);
+ } while (framptr);
+}
+
+static void clean_free_buffer(struct mtk_vcodec_ctx *ctx)
+{
+ struct vb2_buffer *framptr;
+
+ do {
+ framptr = get_free_buffer(ctx);
+ } while (framptr);
+}
+
+static void mtk_vdec_queue_res_chg_event(struct mtk_vcodec_ctx *ctx)
+{
+ static const struct v4l2_event ev_src_ch = {
+ .type = V4L2_EVENT_SOURCE_CHANGE,
+ .u.src_change.changes =
+ V4L2_EVENT_SRC_CH_RESOLUTION,
+ };
+
+ mtk_v4l2_debug(1, "[%d]", ctx->id);
+ v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
+}
+
+static void mtk_vdec_flush_decoder(struct mtk_vcodec_ctx *ctx)
+{
+ bool res_chg;
+ int ret = 0;
+
+ ret = vdec_if_decode(ctx, NULL, NULL, &res_chg);
+ if (ret)
+ mtk_v4l2_err("DecodeFinal failed, ret=%d", ret);
+
+ clean_display_buffer(ctx);
+ clean_free_buffer(ctx);
+}
+
+static void mtk_vdec_pic_info_update(struct mtk_vcodec_ctx *ctx)
+{
+ unsigned int dpbsize = 0;
+ int ret;
+
+ if (vdec_if_get_param(ctx,
+ GET_PARAM_PIC_INFO,
+ &ctx->last_decoded_picinfo)) {
+ mtk_v4l2_err("[%d]Error!! Cannot get param : GET_PARAM_PICTURE_INFO ERR",
+ ctx->id);
+ return;
+ }
+
+ if (ctx->last_decoded_picinfo.pic_w == 0 ||
+ ctx->last_decoded_picinfo.pic_h == 0 ||
+ ctx->last_decoded_picinfo.buf_w == 0 ||
+ ctx->last_decoded_picinfo.buf_h == 0) {
+ mtk_v4l2_err("Cannot get correct pic info");
+ return;
+ }
+
+ if ((ctx->last_decoded_picinfo.pic_w == ctx->picinfo.pic_w) ||
+ (ctx->last_decoded_picinfo.pic_h == ctx->picinfo.pic_h))
+ return;
+
+ mtk_v4l2_debug(1,
+ "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)",
+ ctx->id, ctx->last_decoded_picinfo.pic_w,
+ ctx->last_decoded_picinfo.pic_h,
+ ctx->picinfo.pic_w, ctx->picinfo.pic_h,
+ ctx->last_decoded_picinfo.buf_w,
+ ctx->last_decoded_picinfo.buf_h);
+
+ ret = vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize);
+ if (dpbsize == 0)
+ mtk_v4l2_err("Incorrect dpb size, ret=%d", ret);
+
+ ctx->dpb_size = dpbsize;
+}
+
+static void mtk_vdec_worker(struct work_struct *work)
+{
+ struct mtk_vcodec_ctx *ctx = container_of(work, struct mtk_vcodec_ctx,
+ decode_work);
+ struct mtk_vcodec_dev *dev = ctx->dev;
+ struct vb2_buffer *src_buf, *dst_buf;
+ struct mtk_vcodec_mem buf;
+ struct vdec_fb *pfb;
+ bool res_chg = false;
+ int ret;
+ struct mtk_video_dec_buf *dst_buf_info, *src_buf_info;
+ struct vb2_v4l2_buffer *dst_vb2_v4l2, *src_vb2_v4l2;
+
+ src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ if (src_buf == NULL) {
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
+ mtk_v4l2_debug(1, "[%d] src_buf empty!!", ctx->id);
+ return;
+ }
+
+ dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+ if (dst_buf == NULL) {
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
+ mtk_v4l2_debug(1, "[%d] dst_buf empty!!", ctx->id);
+ return;
+ }
+
+ src_vb2_v4l2 = container_of(src_buf, struct vb2_v4l2_buffer, vb2_buf);
+ src_buf_info = container_of(src_vb2_v4l2, struct mtk_video_dec_buf, vb);
+
+ dst_vb2_v4l2 = container_of(dst_buf, struct vb2_v4l2_buffer, vb2_buf);
+ dst_buf_info = container_of(dst_vb2_v4l2, struct mtk_video_dec_buf, vb);
+
+ buf.va = vb2_plane_vaddr(src_buf, 0);
+ buf.dma_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+ buf.size = (size_t)src_buf->planes[0].bytesused;
+ if (!buf.va) {
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
+ mtk_v4l2_err("[%d] id=%d src_addr is NULL!!",
+ ctx->id, src_buf->index);
+ return;
+ }
+
+ pfb = &dst_buf_info->frame_buffer;
+ pfb->base_y.va = vb2_plane_vaddr(dst_buf, 0);
+ pfb->base_y.dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+ pfb->base_y.size = ctx->picinfo.y_bs_sz + ctx->picinfo.y_len_sz;
+
+ pfb->base_c.va = vb2_plane_vaddr(dst_buf, 1);
+ pfb->base_c.dma_addr = vb2_dma_contig_plane_dma_addr(dst_buf, 1);
+ pfb->base_c.size = ctx->picinfo.c_bs_sz + ctx->picinfo.c_len_sz;
+ pfb->status = 0;
+ mtk_v4l2_debug(3, "===>[%d] vdec_if_decode() ===>", ctx->id);
+ mtk_v4l2_debug(3, "[%d] Bitstream VA=%p DMA=%pad Size=%zx vb=%p",
+ ctx->id, buf.va, &buf.dma_addr, buf.size, src_buf);
+
+ mtk_v4l2_debug(3,
+ "id=%d Framebuf pfb=%p VA=%p Y_DMA=%pad C_DMA=%pad Size=%zx",
+ dst_buf->index, pfb,
+ pfb->base_y.va, &pfb->base_y.dma_addr,
+ &pfb->base_c.dma_addr, pfb->base_y.size);
+
+ if (src_buf_info->lastframe) {
+ /* update src buf status */
+ src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ src_buf_info->lastframe = false;
+ v4l2_m2m_buf_done(&src_buf_info->vb, VB2_BUF_STATE_DONE);
+
+ /* update dst buf status */
+ dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+ dst_buf_info->used = false;
+
+ vdec_if_decode(ctx, NULL, NULL, &res_chg);
+ clean_display_buffer(ctx);
+ vb2_set_plane_payload(&dst_buf_info->vb.vb2_buf, 0, 0);
+ vb2_set_plane_payload(&dst_buf_info->vb.vb2_buf, 1, 0);
+ v4l2_m2m_buf_done(&dst_buf_info->vb, VB2_BUF_STATE_DONE);
+ clean_free_buffer(ctx);
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
+ return;
+ }
+ dst_buf_info->vb.vb2_buf.timestamp
+ = src_buf_info->vb.vb2_buf.timestamp;
+ dst_buf_info->vb.timecode
+ = src_buf_info->vb.timecode;
+ mutex_lock(&ctx->lock);
+ dst_buf_info->used = true;
+ mutex_unlock(&ctx->lock);
+ src_buf_info->used = true;
+
+ ret = vdec_if_decode(ctx, &buf, pfb, &res_chg);
+
+ if (ret) {
+ mtk_v4l2_err(
+ " <===[%d], src_buf[%d]%d sz=0x%zx pts=%llu dst_buf[%d] vdec_if_decode() ret=%d res_chg=%d===>",
+ ctx->id,
+ src_buf->index,
+ src_buf_info->lastframe,
+ buf.size,
+ src_buf_info->vb.vb2_buf.timestamp,
+ dst_buf->index,
+ ret, res_chg);
+ src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ v4l2_m2m_buf_done(&src_buf_info->vb, VB2_BUF_STATE_ERROR);
+ } else if (res_chg == false) {
+ /*
+ * we only return src buffer with VB2_BUF_STATE_DONE
+ * when decode success without resolution change
+ */
+ src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ v4l2_m2m_buf_done(&src_buf_info->vb, VB2_BUF_STATE_DONE);
+ }
+
+ dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+ clean_display_buffer(ctx);
+ clean_free_buffer(ctx);
+
+ if (!ret && res_chg) {
+ mtk_vdec_pic_info_update(ctx);
+ /*
+ * On encountering a resolution change in the stream.
+ * The driver must first process and decode all
+ * remaining buffers from before the resolution change
+ * point, so call flush decode here
+ */
+ mtk_vdec_flush_decoder(ctx);
+ /*
+ * After all buffers containing decoded frames from
+ * before the resolution change point ready to be
+ * dequeued on the CAPTURE queue, the driver sends a
+ * V4L2_EVENT_SOURCE_CHANGE event for source change
+ * type V4L2_EVENT_SRC_CH_RESOLUTION
+ */
+ mtk_vdec_queue_res_chg_event(ctx);
+ }
+ v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
+}
+
+void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx)
+{
+ mutex_unlock(&ctx->dev->dec_mutex);
+}
+
+void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx)
+{
+ mutex_lock(&ctx->dev->dec_mutex);
+}
+
+void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx)
+{
+ vdec_if_deinit(ctx);
+ ctx->state = MTK_STATE_FREE;
+}
+
+void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx)
+{
+ struct mtk_q_data *q_data;
+
+ ctx->m2m_ctx->q_lock = &ctx->dev->dev_mutex;
+ ctx->fh.m2m_ctx = ctx->m2m_ctx;
+ ctx->fh.ctrl_handler = &ctx->ctrl_hdl;
+ INIT_WORK(&ctx->decode_work, mtk_vdec_worker);
+ ctx->colorspace = V4L2_COLORSPACE_REC709;
+ ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
+ ctx->quantization = V4L2_QUANTIZATION_DEFAULT;
+ ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT;
+
+ q_data = &ctx->q_data[MTK_Q_DATA_SRC];
+ memset(q_data, 0, sizeof(struct mtk_q_data));
+ q_data->visible_width = DFT_CFG_WIDTH;
+ q_data->visible_height = DFT_CFG_HEIGHT;
+ q_data->fmt = &mtk_video_formats[OUT_FMT_IDX];
+ q_data->field = V4L2_FIELD_NONE;
+
+ q_data->sizeimage[0] = DFT_CFG_WIDTH * DFT_CFG_HEIGHT;
+ q_data->bytesperline[0] = 0;
+
+ q_data = &ctx->q_data[MTK_Q_DATA_DST];
+ memset(q_data, 0, sizeof(struct mtk_q_data));
+ q_data->visible_width = DFT_CFG_WIDTH;
+ q_data->visible_height = DFT_CFG_HEIGHT;
+ q_data->coded_width = DFT_CFG_WIDTH;
+ q_data->coded_height = DFT_CFG_HEIGHT;
+ q_data->fmt = &mtk_video_formats[CAP_FMT_IDX];
+ q_data->field = V4L2_FIELD_NONE;
+
+ v4l_bound_align_image(&q_data->coded_width,
+ MTK_VDEC_MIN_W,
+ MTK_VDEC_MAX_W, 4,
+ &q_data->coded_height,
+ MTK_VDEC_MIN_H,
+ MTK_VDEC_MAX_H, 5, 6);
+
+ q_data->sizeimage[0] = q_data->coded_width * q_data->coded_height;
+ q_data->bytesperline[0] = q_data->coded_width;
+ q_data->sizeimage[1] = q_data->sizeimage[0] / 2;
+ q_data->bytesperline[1] = q_data->coded_width;
+}
+
+static int vidioc_vdec_qbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+ struct vb2_queue *vq;
+ struct vb2_buffer *vb;
+ struct mtk_video_dec_buf *mtkbuf;
+ struct vb2_v4l2_buffer *vb2_v4l2;
+
+ if (ctx->state == MTK_STATE_ABORT) {
+ mtk_v4l2_err("[%d] Call on QBUF after unrecoverable error",
+ ctx->id);
+ return -EIO;
+ }
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, buf->type);
+ vb = vq->bufs[buf->index];
+ vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
+ mtkbuf = container_of(vb2_v4l2, struct mtk_video_dec_buf, vb);
+
+ if ((buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
+ (buf->m.planes[0].bytesused == 0)) {
+ mtkbuf->lastframe = true;
+ mtk_v4l2_debug(1, "[%d] (%d) id=%d lastframe=%d (%d,%d, %d) vb=%p",
+ ctx->id, buf->type, buf->index,
+ mtkbuf->lastframe, buf->bytesused,
+ buf->m.planes[0].bytesused, buf->length,
+ vb);
+ }
+
+ return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_vdec_dqbuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+
+ if (ctx->state == MTK_STATE_ABORT) {
+ mtk_v4l2_err("[%d] Call on DQBUF after unrecoverable error",
+ ctx->id);
+ return -EIO;
+ }
+
+ return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_vdec_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ strlcpy(cap->driver, MTK_VCODEC_DEC_NAME, sizeof(cap->driver));
+ strlcpy(cap->bus_info, MTK_PLATFORM_STR, sizeof(cap->bus_info));
+ strlcpy(cap->card, MTK_PLATFORM_STR, sizeof(cap->card));
+
+ return 0;
+}
+
+static int vidioc_vdec_subscribe_evt(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);
+ case V4L2_EVENT_SOURCE_CHANGE:
+ return v4l2_src_change_event_subscribe(fh, sub);
+ default:
+ return v4l2_ctrl_subscribe_event(fh, sub);
+ }
+}
+
+static int vidioc_try_fmt(struct v4l2_format *f, struct mtk_video_fmt *fmt)
+{
+ struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
+ int i;
+
+ pix_fmt_mp->field = V4L2_FIELD_NONE;
+
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ pix_fmt_mp->num_planes = 1;
+ pix_fmt_mp->plane_fmt[0].bytesperline = 0;
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ int tmp_w, tmp_h;
+
+ pix_fmt_mp->height = clamp(pix_fmt_mp->height,
+ MTK_VDEC_MIN_H,
+ MTK_VDEC_MAX_H);
+ pix_fmt_mp->width = clamp(pix_fmt_mp->width,
+ MTK_VDEC_MIN_W,
+ MTK_VDEC_MAX_W);
+
+ /*
+ * Find next closer width align 64, heign align 64, size align
+ * 64 rectangle
+ * Note: This only get default value, the real HW needed value
+ * only available when ctx in MTK_STATE_HEADER state
+ */
+ tmp_w = pix_fmt_mp->width;
+ tmp_h = pix_fmt_mp->height;
+ v4l_bound_align_image(&pix_fmt_mp->width,
+ MTK_VDEC_MIN_W,
+ MTK_VDEC_MAX_W, 6,
+ &pix_fmt_mp->height,
+ MTK_VDEC_MIN_H,
+ MTK_VDEC_MAX_H, 6, 9);
+
+ if (pix_fmt_mp->width < tmp_w &&
+ (pix_fmt_mp->width + 64) <= MTK_VDEC_MAX_W)
+ pix_fmt_mp->width += 64;
+ if (pix_fmt_mp->height < tmp_h &&
+ (pix_fmt_mp->height + 64) <= MTK_VDEC_MAX_H)
+ pix_fmt_mp->height += 64;
+
+ mtk_v4l2_debug(0,
+ "before resize width=%d, height=%d, after resize width=%d, height=%d, sizeimage=%d",
+ tmp_w, tmp_h, pix_fmt_mp->width,
+ pix_fmt_mp->height,
+ pix_fmt_mp->width * pix_fmt_mp->height);
+
+ pix_fmt_mp->num_planes = fmt->num_planes;
+ pix_fmt_mp->plane_fmt[0].sizeimage =
+ pix_fmt_mp->width * pix_fmt_mp->height;
+ pix_fmt_mp->plane_fmt[0].bytesperline = pix_fmt_mp->width;
+
+ if (pix_fmt_mp->num_planes == 2) {
+ pix_fmt_mp->plane_fmt[1].sizeimage =
+ (pix_fmt_mp->width * pix_fmt_mp->height) / 2;
+ pix_fmt_mp->plane_fmt[1].bytesperline =
+ pix_fmt_mp->width;
+ }
+ }
+
+ for (i = 0; i < pix_fmt_mp->num_planes; i++)
+ memset(&(pix_fmt_mp->plane_fmt[i].reserved[0]), 0x0,
+ sizeof(pix_fmt_mp->plane_fmt[0].reserved));
+
+ pix_fmt_mp->flags = 0;
+ memset(&pix_fmt_mp->reserved, 0x0, sizeof(pix_fmt_mp->reserved));
+ return 0;
+}
+
+static int vidioc_try_fmt_vid_cap_mplane(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct mtk_video_fmt *fmt;
+
+ fmt = mtk_vdec_find_format(f);
+ if (!fmt) {
+ f->fmt.pix.pixelformat = mtk_video_formats[CAP_FMT_IDX].fourcc;
+ fmt = mtk_vdec_find_format(f);
+ }
+
+ return vidioc_try_fmt(f, fmt);
+}
+
+static int vidioc_try_fmt_vid_out_mplane(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
+ struct mtk_video_fmt *fmt;
+
+ fmt = mtk_vdec_find_format(f);
+ if (!fmt) {
+ f->fmt.pix.pixelformat = mtk_video_formats[OUT_FMT_IDX].fourcc;
+ fmt = mtk_vdec_find_format(f);
+ }
+
+ if (pix_fmt_mp->plane_fmt[0].sizeimage == 0) {
+ mtk_v4l2_err("sizeimage of output format must be given");
+ return -EINVAL;
+ }
+
+ return vidioc_try_fmt(f, fmt);
+}
+
+static int vidioc_vdec_g_selection(struct file *file, void *priv,
+ struct v4l2_selection *s)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+ struct mtk_q_data *q_data;
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ q_data = &ctx->q_data[MTK_Q_DATA_DST];
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = ctx->picinfo.pic_w;
+ s->r.height = ctx->picinfo.pic_h;
+ break;
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = ctx->picinfo.buf_w;
+ s->r.height = ctx->picinfo.buf_h;
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ if (vdec_if_get_param(ctx, GET_PARAM_CROP_INFO, &(s->r))) {
+ /* set to default value if header info not ready yet*/
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = q_data->visible_width;
+ s->r.height = q_data->visible_height;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (ctx->state < MTK_STATE_HEADER) {
+ /* set to default value if header info not ready yet*/
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = q_data->visible_width;
+ s->r.height = q_data->visible_height;
+ return 0;
+ }
+
+ return 0;
+}
+
+static int vidioc_vdec_s_selection(struct file *file, void *priv,
+ struct v4l2_selection *s)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_COMPOSE:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = ctx->picinfo.pic_w;
+ s->r.height = ctx->picinfo.pic_h;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vidioc_vdec_s_fmt(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+ struct v4l2_pix_format_mplane *pix_mp;
+ struct mtk_q_data *q_data;
+ int ret = 0;
+ struct mtk_video_fmt *fmt;
+
+ mtk_v4l2_debug(3, "[%d]", ctx->id);
+
+ q_data = mtk_vdec_get_q_data(ctx, f->type);
+ if (!q_data)
+ return -EINVAL;
+
+ pix_mp = &f->fmt.pix_mp;
+ if ((f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) &&
+ vb2_is_busy(&ctx->m2m_ctx->out_q_ctx.q)) {
+ mtk_v4l2_err("out_q_ctx buffers already requested");
+ ret = -EBUSY;
+ }
+
+ if ((f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) &&
+ vb2_is_busy(&ctx->m2m_ctx->cap_q_ctx.q)) {
+ mtk_v4l2_err("cap_q_ctx buffers already requested");
+ ret = -EBUSY;
+ }
+
+ fmt = mtk_vdec_find_format(f);
+ if (fmt == NULL) {
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ f->fmt.pix.pixelformat =
+ mtk_video_formats[OUT_FMT_IDX].fourcc;
+ fmt = mtk_vdec_find_format(f);
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ f->fmt.pix.pixelformat =
+ mtk_video_formats[CAP_FMT_IDX].fourcc;
+ fmt = mtk_vdec_find_format(f);
+ }
+ }
+
+ q_data->fmt = fmt;
+ vidioc_try_fmt(f, q_data->fmt);
+ if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ q_data->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage;
+ q_data->coded_width = pix_mp->width;
+ q_data->coded_height = pix_mp->height;
+
+ ctx->colorspace = f->fmt.pix_mp.colorspace;
+ ctx->ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+ ctx->quantization = f->fmt.pix_mp.quantization;
+ ctx->xfer_func = f->fmt.pix_mp.xfer_func;
+
+ if (ctx->state == MTK_STATE_FREE) {
+ ret = vdec_if_init(ctx, q_data->fmt->fourcc);
+ if (ret) {
+ mtk_v4l2_err("[%d]: vdec_if_init() fail ret=%d",
+ ctx->id, ret);
+ return -EINVAL;
+ }
+ ctx->state = MTK_STATE_INIT;
+ }
+ }
+
+ return 0;
+}
+
+static int vidioc_enum_framesizes(struct file *file, void *priv,
+ struct v4l2_frmsizeenum *fsize)
+{
+ int i = 0;
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+
+ if (fsize->index != 0)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_SUPPORTED_FRAMESIZE; ++i) {
+ if (fsize->pixel_format != mtk_vdec_framesizes[i].fourcc)
+ continue;
+
+ fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+ fsize->stepwise = mtk_vdec_framesizes[i].stepwise;
+ if (!(ctx->dev->dec_capability &
+ VCODEC_CAPABILITY_4K_DISABLED)) {
+ mtk_v4l2_debug(3, "4K is enabled");
+ fsize->stepwise.max_width =
+ VCODEC_DEC_4K_CODED_WIDTH;
+ fsize->stepwise.max_height =
+ VCODEC_DEC_4K_CODED_HEIGHT;
+ }
+ mtk_v4l2_debug(1, "%x, %d %d %d %d %d %d",
+ ctx->dev->dec_capability,
+ fsize->stepwise.min_width,
+ fsize->stepwise.max_width,
+ fsize->stepwise.step_width,
+ fsize->stepwise.min_height,
+ fsize->stepwise.max_height,
+ fsize->stepwise.step_height);
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool output_queue)
+{
+ struct mtk_video_fmt *fmt;
+ int i, j = 0;
+
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (output_queue && (mtk_video_formats[i].type != MTK_FMT_DEC))
+ continue;
+ if (!output_queue &&
+ (mtk_video_formats[i].type != MTK_FMT_FRAME))
+ continue;
+
+ if (j == f->index)
+ break;
+ ++j;
+ }
+
+ if (i == NUM_FORMATS)
+ return -EINVAL;
+
+ fmt = &mtk_video_formats[i];
+ f->pixelformat = fmt->fourcc;
+
+ return 0;
+}
+
+static int vidioc_vdec_enum_fmt_vid_cap_mplane(struct file *file, void *pirv,
+ struct v4l2_fmtdesc *f)
+{
+ return vidioc_enum_fmt(f, false);
+}
+
+static int vidioc_vdec_enum_fmt_vid_out_mplane(struct file *file, void *priv,
+ struct v4l2_fmtdesc *f)
+{
+ return vidioc_enum_fmt(f, true);
+}
+
+static int vidioc_vdec_g_fmt(struct file *file, void *priv,
+ struct v4l2_format *f)
+{
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv);
+ struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+ struct vb2_queue *vq;
+ struct mtk_q_data *q_data;
+
+ vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+ if (!vq) {
+ mtk_v4l2_err("no vb2 queue for type=%d", f->type);
+ return -EINVAL;
+ }
+
+ q_data = mtk_vdec_get_q_data(ctx, f->type);
+
+ pix_mp->field = V4L2_FIELD_NONE;
+ pix_mp->colorspace = ctx->colorspace;
+ pix_mp->ycbcr_enc = ctx->ycbcr_enc;
+ pix_mp->quantization = ctx->quantization;
+ pix_mp->xfer_func = ctx->xfer_func;
+
+ if ((f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) &&
+ (ctx->state >= MTK_STATE_HEADER)) {
+ /* Until STREAMOFF is called on the CAPTURE queue
+ * (acknowledging the event), the driver operates as if
+ * the resolution hasn't changed yet.
+ * So we just return picinfo yet, and update picinfo in
+ * stop_streaming hook function
+ */
+ q_data->sizeimage[0] = ctx->picinfo.y_bs_sz +
+ ctx->picinfo.y_len_sz;
+ q_data->sizeimage[1] = ctx->picinfo.c_bs_sz +
+ ctx->picinfo.c_len_sz;
+ q_data->bytesperline[0] = ctx->last_decoded_picinfo.buf_w;
+ q_data->bytesperline[1] = ctx->last_decoded_picinfo.buf_w;
+ q_data->coded_width = ctx->picinfo.buf_w;
+ q_data->coded_height = ctx->picinfo.buf_h;
+
+ /*
+ * Width and height are set to the dimensions
+ * of the movie, the buffer is bigger and
+ * further processing stages should crop to this
+ * rectangle.
+ */
+ pix_mp->width = q_data->coded_width;
+ pix_mp->height = q_data->coded_height;
+
+ /*
+ * Set pixelformat to the format in which mt vcodec
+ * outputs the decoded frame
+ */
+ pix_mp->num_planes = q_data->fmt->num_planes;
+ pix_mp->pixelformat = q_data->fmt->fourcc;
+ pix_mp->plane_fmt[0].bytesperline = q_data->bytesperline[0];
+ pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage[0];
+ pix_mp->plane_fmt[1].bytesperline = q_data->bytesperline[1];
+ pix_mp->plane_fmt[1].sizeimage = q_data->sizeimage[1];
+
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ /*
+ * This is run on OUTPUT
+ * The buffer contains compressed image
+ * so width and height have no meaning.
+ * Assign value here to pass v4l2-compliance test
+ */
+ pix_mp->width = q_data->visible_width;
+ pix_mp->height = q_data->visible_height;
+ pix_mp->plane_fmt[0].bytesperline = q_data->bytesperline[0];
+ pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage[0];
+ pix_mp->pixelformat = q_data->fmt->fourcc;
+ pix_mp->num_planes = q_data->fmt->num_planes;
+ } else {
+ pix_mp->width = q_data->coded_width;
+ pix_mp->height = q_data->coded_height;
+ pix_mp->num_planes = q_data->fmt->num_planes;
+ pix_mp->pixelformat = q_data->fmt->fourcc;
+ pix_mp->plane_fmt[0].bytesperline = q_data->bytesperline[0];
+ pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage[0];
+ pix_mp->plane_fmt[1].bytesperline = q_data->bytesperline[1];
+ pix_mp->plane_fmt[1].sizeimage = q_data->sizeimage[1];
+
+ mtk_v4l2_debug(1, "[%d] type=%d state=%d Format information could not be read, not ready yet!",
+ ctx->id, f->type, ctx->state);
+ }
+
+ return 0;
+}
+
+static int vb2ops_vdec_queue_setup(struct vb2_queue *vq,
+ unsigned int *nbuffers,
+ unsigned int *nplanes,
+ unsigned int sizes[],
+ struct device *alloc_devs[])
+{
+ struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq);
+ struct mtk_q_data *q_data;
+ unsigned int i;
+
+ q_data = mtk_vdec_get_q_data(ctx, vq->type);
+
+ if (q_data == NULL) {
+ mtk_v4l2_err("vq->type=%d err\n", vq->type);
+ return -EINVAL;
+ }
+
+ if (*nplanes) {
+ for (i = 0; i < *nplanes; i++) {
+ if (sizes[i] < q_data->sizeimage[i])
+ return -EINVAL;
+ }
+ } else {
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ *nplanes = 2;
+ else
+ *nplanes = 1;
+
+ for (i = 0; i < *nplanes; i++)
+ sizes[i] = q_data->sizeimage[i];
+ }
+
+ mtk_v4l2_debug(1,
+ "[%d]\t type = %d, get %d plane(s), %d buffer(s) of size 0x%x 0x%x ",
+ ctx->id, vq->type, *nplanes, *nbuffers,
+ sizes[0], sizes[1]);
+
+ return 0;
+}
+
+static int vb2ops_vdec_buf_prepare(struct vb2_buffer *vb)
+{
+ struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct mtk_q_data *q_data;
+ int i;
+
+ mtk_v4l2_debug(3, "[%d] (%d) id=%d",
+ ctx->id, vb->vb2_queue->type, vb->index);
+
+ q_data = mtk_vdec_get_q_data(ctx, vb->vb2_queue->type);
+
+ for (i = 0; i < q_data->fmt->num_planes; i++) {
+ if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
+ mtk_v4l2_err("data will not fit into plane %d (%lu < %d)",
+ i, vb2_plane_size(vb, i),
+ q_data->sizeimage[i]);
+ }
+ }
+
+ return 0;
+}
+
+static void vb2ops_vdec_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_buffer *src_buf;
+ struct mtk_vcodec_mem src_mem;
+ bool res_chg = false;
+ int ret = 0;
+ unsigned int dpbsize = 1;
+ struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct vb2_v4l2_buffer *vb2_v4l2 = container_of(vb,
+ struct vb2_v4l2_buffer, vb2_buf);
+ struct mtk_video_dec_buf *buf = container_of(vb2_v4l2,
+ struct mtk_video_dec_buf, vb);
+
+ mtk_v4l2_debug(3, "[%d] (%d) id=%d, vb=%p",
+ ctx->id, vb->vb2_queue->type,
+ vb->index, vb);
+ /*
+ * check if this buffer is ready to be used after decode
+ */
+ if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ mutex_lock(&ctx->lock);
+ if (buf->used == false) {
+ v4l2_m2m_buf_queue(ctx->m2m_ctx,
+ to_vb2_v4l2_buffer(vb));
+ buf->queued_in_vb2 = true;
+ buf->queued_in_v4l2 = true;
+ buf->ready_to_display = false;
+ } else {
+ buf->queued_in_vb2 = false;
+ buf->queued_in_v4l2 = true;
+ buf->ready_to_display = false;
+ }
+ mutex_unlock(&ctx->lock);
+ return;
+ }
+
+ v4l2_m2m_buf_queue(ctx->m2m_ctx, vb2_v4l2);
+
+ if (ctx->state != MTK_STATE_INIT) {
+ mtk_v4l2_debug(3, "[%d] already init driver %d",
+ ctx->id, ctx->state);
+ return;
+ }
+
+ src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+ if (!src_buf) {
+ mtk_v4l2_err("No src buffer");
+ return;
+ }
+
+ src_mem.va = vb2_plane_vaddr(src_buf, 0);
+ src_mem.dma_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+ src_mem.size = (size_t)src_buf->planes[0].bytesused;
+ mtk_v4l2_debug(2,
+ "[%d] buf id=%d va=%p dma=%pad size=%zx",
+ ctx->id, src_buf->index,
+ src_mem.va, &src_mem.dma_addr,
+ src_mem.size);
+
+ ret = vdec_if_decode(ctx, &src_mem, NULL, &res_chg);
+ if (ret || !res_chg) {
+ /*
+ * fb == NULL menas to parse SPS/PPS header or
+ * resolution info in src_mem. Decode can fail
+ * if there is no SPS header or picture info
+ * in bs
+ */
+ int log_level = ret ? 0 : 1;
+
+ src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+ v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf),
+ VB2_BUF_STATE_DONE);
+ mtk_v4l2_debug(log_level,
+ "[%d] vdec_if_decode() src_buf=%d, size=%zu, fail=%d, res_chg=%d",
+ ctx->id, src_buf->index,
+ src_mem.size, ret, res_chg);
+ return;
+ }
+
+ if (vdec_if_get_param(ctx, GET_PARAM_PIC_INFO, &ctx->picinfo)) {
+ mtk_v4l2_err("[%d]Error!! Cannot get param : GET_PARAM_PICTURE_INFO ERR",
+ ctx->id);
+ return;
+ }
+
+ ctx->last_decoded_picinfo = ctx->picinfo;
+ ctx->q_data[MTK_Q_DATA_DST].sizeimage[0] =
+ ctx->picinfo.y_bs_sz +
+ ctx->picinfo.y_len_sz;
+ ctx->q_data[MTK_Q_DATA_DST].bytesperline[0] =
+ ctx->picinfo.buf_w;
+ ctx->q_data[MTK_Q_DATA_DST].sizeimage[1] =
+ ctx->picinfo.c_bs_sz +
+ ctx->picinfo.c_len_sz;
+ ctx->q_data[MTK_Q_DATA_DST].bytesperline[1] = ctx->picinfo.buf_w;
+ mtk_v4l2_debug(2, "[%d] vdec_if_init() OK wxh=%dx%d pic wxh=%dx%d sz[0]=0x%x sz[1]=0x%x",
+ ctx->id,
+ ctx->picinfo.buf_w, ctx->picinfo.buf_h,
+ ctx->picinfo.pic_w, ctx->picinfo.pic_h,
+ ctx->q_data[MTK_Q_DATA_DST].sizeimage[0],
+ ctx->q_data[MTK_Q_DATA_DST].sizeimage[1]);
+
+ ret = vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize);
+ if (dpbsize == 0)
+ mtk_v4l2_err("[%d] GET_PARAM_DPB_SIZE fail=%d", ctx->id, ret);
+
+ ctx->dpb_size = dpbsize;
+ ctx->state = MTK_STATE_HEADER;
+ mtk_v4l2_debug(1, "[%d] dpbsize=%d", ctx->id, ctx->dpb_size);
+}
+
+static void vb2ops_vdec_buf_finish(struct vb2_buffer *vb)
+{
+ struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct vb2_v4l2_buffer *vb2_v4l2;
+ struct mtk_video_dec_buf *buf;
+
+ if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return;
+
+ vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf);
+ buf = container_of(vb2_v4l2, struct mtk_video_dec_buf, vb);
+ mutex_lock(&ctx->lock);
+ buf->queued_in_v4l2 = false;
+ buf->queued_in_vb2 = false;
+ mutex_unlock(&ctx->lock);
+}
+
+static int vb2ops_vdec_buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vb2_v4l2 = container_of(vb,
+ struct vb2_v4l2_buffer, vb2_buf);
+ struct mtk_video_dec_buf *buf = container_of(vb2_v4l2,
+ struct mtk_video_dec_buf, vb);
+
+ if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ buf->used = false;
+ buf->ready_to_display = false;
+ buf->queued_in_v4l2 = false;
+ } else {
+ buf->lastframe = false;
+ }
+
+ return 0;
+}
+
+static int vb2ops_vdec_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
+
+ if (ctx->state == MTK_STATE_FLUSH)
+ ctx->state = MTK_STATE_HEADER;
+
+ return 0;
+}
+
+static void vb2ops_vdec_stop_streaming(struct vb2_queue *q)
+{
+ struct vb2_buffer *src_buf = NULL, *dst_buf = NULL;
+ struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(q);
+
+ mtk_v4l2_debug(3, "[%d] (%d) state=(%x) ctx->decoded_frame_cnt=%d",
+ ctx->id, q->type, ctx->state, ctx->decoded_frame_cnt);
+
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ while ((src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx)))
+ v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf),
+ VB2_BUF_STATE_ERROR);
+ return;
+ }
+
+ if (ctx->state >= MTK_STATE_HEADER) {
+
+ /* Until STREAMOFF is called on the CAPTURE queue
+ * (acknowledging the event), the driver operates
+ * as if the resolution hasn't changed yet, i.e.
+ * VIDIOC_G_FMT< etc. return previous resolution.
+ * So we update picinfo here
+ */
+ ctx->picinfo = ctx->last_decoded_picinfo;
+
+ mtk_v4l2_debug(2,
+ "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)",
+ ctx->id, ctx->last_decoded_picinfo.pic_w,
+ ctx->last_decoded_picinfo.pic_h,
+ ctx->picinfo.pic_w, ctx->picinfo.pic_h,
+ ctx->last_decoded_picinfo.buf_w,
+ ctx->last_decoded_picinfo.buf_h);
+
+ mtk_vdec_flush_decoder(ctx);
+ }
+ ctx->state = MTK_STATE_FLUSH;
+
+ while ((dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx))) {
+ vb2_set_plane_payload(dst_buf, 0, 0);
+ vb2_set_plane_payload(dst_buf, 1, 0);
+ v4l2_m2m_buf_done(to_vb2_v4l2_buffer(dst_buf),
+ VB2_BUF_STATE_ERROR);
+ }
+
+}
+
+static void m2mops_vdec_device_run(void *priv)
+{
+ struct mtk_vcodec_ctx *ctx = priv;
+ struct mtk_vcodec_dev *dev = ctx->dev;
+
+ queue_work(dev->decode_workqueue, &ctx->decode_work);
+}
+
+static int m2mops_vdec_job_ready(void *m2m_priv)
+{
+ struct mtk_vcodec_ctx *ctx = m2m_priv;
+
+ mtk_v4l2_debug(3, "[%d]", ctx->id);
+
+ if (ctx->state == MTK_STATE_ABORT)
+ return 0;
+
+ if ((ctx->last_decoded_picinfo.pic_w != ctx->picinfo.pic_w) ||
+ (ctx->last_decoded_picinfo.pic_h != ctx->picinfo.pic_h))
+ return 0;
+
+ if (ctx->state != MTK_STATE_HEADER)
+ return 0;
+
+ return 1;
+}
+
+static void m2mops_vdec_job_abort(void *priv)
+{
+ struct mtk_vcodec_ctx *ctx = priv;
+
+ ctx->state = MTK_STATE_ABORT;
+}
+
+static int mtk_vdec_g_v_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct mtk_vcodec_ctx *ctx = ctrl_to_ctx(ctrl);
+ int ret = 0;
+
+ switch (ctrl->id) {
+ case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
+ if (ctx->state >= MTK_STATE_HEADER) {
+ ctrl->val = ctx->dpb_size;
+ } else {
+ mtk_v4l2_debug(0, "Seqinfo not ready");
+ ctrl->val = 0;
+ }
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops mtk_vcodec_dec_ctrl_ops = {
+ .g_volatile_ctrl = mtk_vdec_g_v_ctrl,
+};
+
+int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_ctx *ctx)
+{
+ struct v4l2_ctrl *ctrl;
+
+ v4l2_ctrl_handler_init(&ctx->ctrl_hdl, 1);
+
+ ctrl = v4l2_ctrl_new_std(&ctx->ctrl_hdl,
+ &mtk_vcodec_dec_ctrl_ops,
+ V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
+ 0, 32, 1, 1);
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+
+ if (ctx->ctrl_hdl.error) {
+ mtk_v4l2_err("Adding control failed %d",
+ ctx->ctrl_hdl.error);
+ return ctx->ctrl_hdl.error;
+ }
+
+ v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
+ return 0;
+}
+
+static void m2mops_vdec_lock(void *m2m_priv)
+{
+ struct mtk_vcodec_ctx *ctx = m2m_priv;
+
+ mtk_v4l2_debug(3, "[%d]", ctx->id);
+ mutex_lock(&ctx->dev->dev_mutex);
+}
+
+static void m2mops_vdec_unlock(void *m2m_priv)
+{
+ struct mtk_vcodec_ctx *ctx = m2m_priv;
+
+ mtk_v4l2_debug(3, "[%d]", ctx->id);
+ mutex_unlock(&ctx->dev->dev_mutex);
+}
+
+const struct v4l2_m2m_ops mtk_vdec_m2m_ops = {
+ .device_run = m2mops_vdec_device_run,
+ .job_ready = m2mops_vdec_job_ready,
+ .job_abort = m2mops_vdec_job_abort,
+ .lock = m2mops_vdec_lock,
+ .unlock = m2mops_vdec_unlock,
+};
+
+static const struct vb2_ops mtk_vdec_vb2_ops = {
+ .queue_setup = vb2ops_vdec_queue_setup,
+ .buf_prepare = vb2ops_vdec_buf_prepare,
+ .buf_queue = vb2ops_vdec_buf_queue,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .buf_init = vb2ops_vdec_buf_init,
+ .buf_finish = vb2ops_vdec_buf_finish,
+ .start_streaming = vb2ops_vdec_start_streaming,
+ .stop_streaming = vb2ops_vdec_stop_streaming,
+};
+
+const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops = {
+ .vidioc_streamon = v4l2_m2m_ioctl_streamon,
+ .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+ .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
+ .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
+ .vidioc_expbuf = v4l2_m2m_ioctl_expbuf,
+
+ .vidioc_qbuf = vidioc_vdec_qbuf,
+ .vidioc_dqbuf = vidioc_vdec_dqbuf,
+
+ .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap_mplane,
+ .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out_mplane,
+
+ .vidioc_s_fmt_vid_cap_mplane = vidioc_vdec_s_fmt,
+ .vidioc_s_fmt_vid_out_mplane = vidioc_vdec_s_fmt,
+ .vidioc_g_fmt_vid_cap_mplane = vidioc_vdec_g_fmt,
+ .vidioc_g_fmt_vid_out_mplane = vidioc_vdec_g_fmt,
+
+ .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs,
+
+ .vidioc_enum_fmt_vid_cap_mplane = vidioc_vdec_enum_fmt_vid_cap_mplane,
+ .vidioc_enum_fmt_vid_out_mplane = vidioc_vdec_enum_fmt_vid_out_mplane,
+ .vidioc_enum_framesizes = vidioc_enum_framesizes,
+
+ .vidioc_querycap = vidioc_vdec_querycap,
+ .vidioc_subscribe_event = vidioc_vdec_subscribe_evt,
+ .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+ .vidioc_g_selection = vidioc_vdec_g_selection,
+ .vidioc_s_selection = vidioc_vdec_s_selection,
+};
+
+int mtk_vcodec_dec_queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ struct mtk_vcodec_ctx *ctx = priv;
+ int ret = 0;
+
+ mtk_v4l2_debug(3, "[%d]", ctx->id);
+
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+ src_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+ src_vq->drv_priv = ctx;
+ src_vq->buf_struct_size = sizeof(struct mtk_video_dec_buf);
+ src_vq->ops = &mtk_vdec_vb2_ops;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+ src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ src_vq->lock = &ctx->dev->dev_mutex;
+ src_vq->dev = &ctx->dev->plat_dev->dev;
+
+ ret = vb2_queue_init(src_vq);
+ if (ret) {
+ mtk_v4l2_err("Failed to initialize videobuf2 queue(output)");
+ return ret;
+ }
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+ dst_vq->io_modes = VB2_DMABUF | VB2_MMAP;
+ dst_vq->drv_priv = ctx;
+ dst_vq->buf_struct_size = sizeof(struct mtk_video_dec_buf);
+ dst_vq->ops = &mtk_vdec_vb2_ops;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+ dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ dst_vq->lock = &ctx->dev->dev_mutex;
+ dst_vq->dev = &ctx->dev->plat_dev->dev;
+
+ ret = vb2_queue_init(dst_vq);
+ if (ret) {
+ vb2_queue_release(src_vq);
+ mtk_v4l2_err("Failed to initialize videobuf2 queue(capture)");
+ }
+
+ return ret;
+}
--- /dev/null
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PC Chen <pc.chen@mediatek.com>
+ * Tiffany Lin <tiffany.lin@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "mtk_vcodec_drv.h"
+#include "mtk_vcodec_dec.h"
+#include "mtk_vcodec_dec_pm.h"
+#include "mtk_vcodec_intr.h"
+#include "mtk_vcodec_util.h"
+#include "mtk_vpu.h"
+
+#define VDEC_HW_ACTIVE 0x10
+#define VDEC_IRQ_CFG 0x11
+#define VDEC_IRQ_CLR 0x10
+#define VDEC_IRQ_CFG_REG 0xa4
+
+module_param(mtk_v4l2_dbg_level, int, 0644);
+module_param(mtk_vcodec_dbg, bool, 0644);
+
+/* Wake up context wait_queue */
+static void wake_up_ctx(struct mtk_vcodec_ctx *ctx)
+{
+ ctx->int_cond = 1;
+ wake_up_interruptible(&ctx->queue);
+}
+
+static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
+{
+ struct mtk_vcodec_dev *dev = priv;
+ struct mtk_vcodec_ctx *ctx;
+ u32 cg_status = 0;
+ unsigned int dec_done_status = 0;
+ void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] +
+ VDEC_IRQ_CFG_REG;
+
+ ctx = mtk_vcodec_get_curr_ctx(dev);
+
+ /* check if HW active or not */
+ cg_status = readl(dev->reg_base[0]);
+ if ((cg_status & VDEC_HW_ACTIVE) != 0) {
+ mtk_v4l2_err("DEC ISR, VDEC active is not 0x0 (0x%08x)",
+ cg_status);
+ return IRQ_HANDLED;
+ }
+
+ dec_done_status = readl(vdec_misc_addr);
+ ctx->irq_status = dec_done_status;
+ if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) !=
+ MTK_VDEC_IRQ_STATUS_DEC_SUCCESS)
+ return IRQ_HANDLED;
+
+ /* clear interrupt */
+ writel((readl(vdec_misc_addr) | VDEC_IRQ_CFG),
+ dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
+ writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
+ dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
+
+ wake_up_ctx(ctx);
+
+ mtk_v4l2_debug(3,
+ "mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",
+ ctx->id, dec_done_status);
+
+ return IRQ_HANDLED;
+}
+
+static void mtk_vcodec_dec_reset_handler(void *priv)
+{
+ struct mtk_vcodec_dev *dev = priv;
+ struct mtk_vcodec_ctx *ctx;
+
+ mtk_v4l2_err("Watchdog timeout!!");
+
+ mutex_lock(&dev->dev_mutex);
+ list_for_each_entry(ctx, &dev->ctx_list, list) {
+ ctx->state = MTK_STATE_ABORT;
+ mtk_v4l2_debug(0, "[%d] Change to state MTK_STATE_ERROR",
+ ctx->id);
+ }
+ mutex_unlock(&dev->dev_mutex);
+}
+
+static int fops_vcodec_open(struct file *file)
+{
+ struct mtk_vcodec_dev *dev = video_drvdata(file);
+ struct mtk_vcodec_ctx *ctx = NULL;
+ int ret = 0;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ mutex_lock(&dev->dev_mutex);
+ ctx->id = dev->id_counter++;
+ v4l2_fh_init(&ctx->fh, video_devdata(file));
+ file->private_data = &ctx->fh;
+ v4l2_fh_add(&ctx->fh);
+ INIT_LIST_HEAD(&ctx->list);
+ ctx->dev = dev;
+ init_waitqueue_head(&ctx->queue);
+ mutex_init(&ctx->lock);
+
+ ctx->type = MTK_INST_DECODER;
+ ret = mtk_vcodec_dec_ctrls_setup(ctx);
+ if (ret) {
+ mtk_v4l2_err("Failed to setup mt vcodec controls");
+ goto err_ctrls_setup;
+ }
+ ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev_dec, ctx,
+ &mtk_vcodec_dec_queue_init);
+ if (IS_ERR((__force void *)ctx->m2m_ctx)) {
+ ret = PTR_ERR((__force void *)ctx->m2m_ctx);
+ mtk_v4l2_err("Failed to v4l2_m2m_ctx_init() (%d)",
+ ret);
+ goto err_m2m_ctx_init;
+ }
+ mtk_vcodec_dec_set_default_params(ctx);
+
+ if (v4l2_fh_is_singular(&ctx->fh)) {
+ mtk_vcodec_dec_pw_on(&dev->pm);
+ /*
+ * vpu_load_firmware checks if it was loaded already and
+ * does nothing in that case
+ */
+ ret = vpu_load_firmware(dev->vpu_plat_dev);
+ if (ret < 0) {
+ /*
+ * Return 0 if downloading firmware successfully,
+ * otherwise it is failed
+ */
+ mtk_v4l2_err("vpu_load_firmware failed!");
+ goto err_load_fw;
+ }
+
+ dev->dec_capability =
+ vpu_get_vdec_hw_capa(dev->vpu_plat_dev);
+ mtk_v4l2_debug(0, "decoder capability %x", dev->dec_capability);
+ }
+
+ list_add(&ctx->list, &dev->ctx_list);
+
+ mutex_unlock(&dev->dev_mutex);
+ mtk_v4l2_debug(0, "%s decoder [%d]", dev_name(&dev->plat_dev->dev),
+ ctx->id);
+ return ret;
+
+ /* Deinit when failure occurred */
+err_load_fw:
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+err_m2m_ctx_init:
+ v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
+err_ctrls_setup:
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ kfree(ctx);
+ mutex_unlock(&dev->dev_mutex);
+
+ return ret;
+}
+
+static int fops_vcodec_release(struct file *file)
+{
+ struct mtk_vcodec_dev *dev = video_drvdata(file);
+ struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data);
+
+ mtk_v4l2_debug(0, "[%d] decoder", ctx->id);
+ mutex_lock(&dev->dev_mutex);
+
+ /*
+ * Call v4l2_m2m_ctx_release before mtk_vcodec_dec_release. First, it
+ * makes sure the worker thread is not running after vdec_if_deinit.
+ * Second, the decoder will be flushed and all the buffers will be
+ * returned in stop_streaming.
+ */
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);
+ mtk_vcodec_dec_release(ctx);
+
+ if (v4l2_fh_is_singular(&ctx->fh))
+ mtk_vcodec_dec_pw_off(&dev->pm);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
+
+ list_del_init(&ctx->list);
+ kfree(ctx);
+ mutex_unlock(&dev->dev_mutex);
+ return 0;
+}
+
+static const struct v4l2_file_operations mtk_vcodec_fops = {
+ .owner = THIS_MODULE,
+ .open = fops_vcodec_open,
+ .release = fops_vcodec_release,
+ .poll = v4l2_m2m_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = v4l2_m2m_fop_mmap,
+};
+
+static int mtk_vcodec_probe(struct platform_device *pdev)
+{
+ struct mtk_vcodec_dev *dev;
+ struct video_device *vfd_dec;
+ struct resource *res;
+ int i, ret;
+
+ dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&dev->ctx_list);
+ dev->plat_dev = pdev;
+
+ dev->vpu_plat_dev = vpu_get_plat_device(dev->plat_dev);
+ if (dev->vpu_plat_dev == NULL) {
+ mtk_v4l2_err("[VPU] vpu device in not ready");
+ return -EPROBE_DEFER;
+ }
+
+ vpu_wdt_reg_handler(dev->vpu_plat_dev, mtk_vcodec_dec_reset_handler,
+ dev, VPU_RST_DEC);
+
+ ret = mtk_vcodec_init_dec_pm(dev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to get mt vcodec clock source");
+ return ret;
+ }
+
+ for (i = 0; i < NUM_MAX_VDEC_REG_BASE; i++) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, i);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "get memory resource failed.");
+ ret = -ENXIO;
+ goto err_res;
+ }
+ dev->reg_base[i] = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR((__force void *)dev->reg_base[i])) {
+ ret = PTR_ERR((__force void *)dev->reg_base);
+ goto err_res;
+ }
+ mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]);
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "failed to get irq resource");
+ ret = -ENOENT;
+ goto err_res;
+ }
+
+ dev->dec_irq = platform_get_irq(pdev, 0);
+ ret = devm_request_irq(&pdev->dev, dev->dec_irq,
+ mtk_vcodec_dec_irq_handler, 0, pdev->name, dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)",
+ dev->dec_irq,
+ ret);
+ goto err_res;
+ }
+
+ disable_irq(dev->dec_irq);
+ mutex_init(&dev->dec_mutex);
+ mutex_init(&dev->dev_mutex);
+ spin_lock_init(&dev->irqlock);
+
+ snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s",
+ "[/MTK_V4L2_VDEC]");
+
+ ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+ if (ret) {
+ mtk_v4l2_err("v4l2_device_register err=%d", ret);
+ goto err_res;
+ }
+
+ init_waitqueue_head(&dev->queue);
+
+ vfd_dec = video_device_alloc();
+ if (!vfd_dec) {
+ mtk_v4l2_err("Failed to allocate video device");
+ ret = -ENOMEM;
+ goto err_dec_alloc;
+ }
+ vfd_dec->fops = &mtk_vcodec_fops;
+ vfd_dec->ioctl_ops = &mtk_vdec_ioctl_ops;
+ vfd_dec->release = video_device_release;
+ vfd_dec->lock = &dev->dev_mutex;
+ vfd_dec->v4l2_dev = &dev->v4l2_dev;
+ vfd_dec->vfl_dir = VFL_DIR_M2M;
+ vfd_dec->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE |
+ V4L2_CAP_STREAMING;
+
+ snprintf(vfd_dec->name, sizeof(vfd_dec->name), "%s",
+ MTK_VCODEC_DEC_NAME);
+ video_set_drvdata(vfd_dec, dev);
+ dev->vfd_dec = vfd_dec;
+ platform_set_drvdata(pdev, dev);
+
+ dev->m2m_dev_dec = v4l2_m2m_init(&mtk_vdec_m2m_ops);
+ if (IS_ERR((__force void *)dev->m2m_dev_dec)) {
+ mtk_v4l2_err("Failed to init mem2mem dec device");
+ ret = PTR_ERR((__force void *)dev->m2m_dev_dec);
+ goto err_dec_mem_init;
+ }
+
+ dev->decode_workqueue =
+ alloc_ordered_workqueue(MTK_VCODEC_DEC_NAME,
+ WQ_MEM_RECLAIM | WQ_FREEZABLE);
+ if (!dev->decode_workqueue) {
+ mtk_v4l2_err("Failed to create decode workqueue");
+ ret = -EINVAL;
+ goto err_event_workq;
+ }
+
+ ret = video_register_device(vfd_dec, VFL_TYPE_GRABBER, 0);
+ if (ret) {
+ mtk_v4l2_err("Failed to register video device");
+ goto err_dec_reg;
+ }
+
+ mtk_v4l2_debug(0, "decoder registered as /dev/video%d",
+ vfd_dec->num);
+
+ return 0;
+
+err_dec_reg:
+ destroy_workqueue(dev->decode_workqueue);
+err_event_workq:
+ v4l2_m2m_release(dev->m2m_dev_dec);
+err_dec_mem_init:
+ video_unregister_device(vfd_dec);
+err_dec_alloc:
+ v4l2_device_unregister(&dev->v4l2_dev);
+err_res:
+ mtk_vcodec_release_dec_pm(dev);
+ return ret;
+}
+
+static const struct of_device_id mtk_vcodec_match[] = {
+ {.compatible = "mediatek,mt8173-vcodec-dec",},
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, mtk_vcodec_match);
+
+static int mtk_vcodec_dec_remove(struct platform_device *pdev)
+{
+ struct mtk_vcodec_dev *dev = platform_get_drvdata(pdev);
+
+ flush_workqueue(dev->decode_workqueue);
+ destroy_workqueue(dev->decode_workqueue);
+ if (dev->m2m_dev_dec)
+ v4l2_m2m_release(dev->m2m_dev_dec);
+
+ if (dev->vfd_dec)
+ video_unregister_device(dev->vfd_dec);
+
+ v4l2_device_unregister(&dev->v4l2_dev);
+ mtk_vcodec_release_dec_pm(dev);
+ return 0;
+}
+
+static struct platform_driver mtk_vcodec_dec_driver = {
+ .probe = mtk_vcodec_probe,
+ .remove = mtk_vcodec_dec_remove,
+ .driver = {
+ .name = MTK_VCODEC_DEC_NAME,
+ .of_match_table = mtk_vcodec_match,
+ },
+};
+
+module_platform_driver(mtk_vcodec_dec_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver");
projects / platform / kernel / linux-starfive.git / commitdiff