On 04/13/2016 02:01 PM, Tiffany Lin wrote: > Add v4l2 layer decoder driver for MT8173 > > Signed-off-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx> > --- > drivers/media/platform/mtk-vcodec/Makefile | 10 +- > drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c | 1429 ++++++++++++++++++++ > drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h | 81 ++ > .../media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 469 +++++++ > .../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 153 +++ > .../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h | 28 + > drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h | 98 +- > drivers/media/platform/mtk-vcodec/vdec_drv_base.h | 56 + > drivers/media/platform/mtk-vcodec/vdec_drv_if.c | 113 ++ > drivers/media/platform/mtk-vcodec/vdec_drv_if.h | 93 ++ > drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h | 86 ++ > 11 files changed, 2596 insertions(+), 20 deletions(-) > create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c > create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h > create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c > create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c > create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h > create mode 100644 drivers/media/platform/mtk-vcodec/vdec_drv_base.h > create mode 100644 drivers/media/platform/mtk-vcodec/vdec_drv_if.c > create mode 100644 drivers/media/platform/mtk-vcodec/vdec_drv_if.h > create mode 100644 drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h > > diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile > index dc5cb00..4c8ed2f 100644 > --- a/drivers/media/platform/mtk-vcodec/Makefile > +++ b/drivers/media/platform/mtk-vcodec/Makefile > @@ -1,7 +1,13 @@ > > > -obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-enc.o mtk-vcodec-common.o > - > +obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dec.o \ > + mtk-vcodec-enc.o \ > + mtk-vcodec-common.o > + > +mtk-vcodec-dec-y := mtk_vcodec_dec_drv.o \ > + vdec_drv_if.o \ > + mtk_vcodec_dec.o \ > + mtk_vcodec_dec_pm.o \ > > > mtk-vcodec-enc-y := venc/venc_vp8_if.o \ > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c > new file mode 100644 > index 0000000..0499413 > --- /dev/null > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c > @@ -0,0 +1,1429 @@ > +/* > +* Copyright (c) 2016 MediaTek Inc. > +* Author: PC Chen <pc.chen@xxxxxxxxxxxx> > +* Tiffany Lin <tiffany.lin@xxxxxxxxxxxx> > +* > +* 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" > + > +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, > + }, > + { > + .fourcc = V4L2_PIX_FMT_VP9, > + .type = MTK_FMT_DEC, > + .num_planes = 1, > + }, > + { > + .fourcc = V4L2_PIX_FMT_MT21, > + .type = MTK_FMT_FRAME, > + .num_planes = 2, > + }, > +}; > +#define OUT_FMT_IDX 0 > +#define CAP_FMT_IDX 3 > + > +#define VCODEC_CAPABILITY_4K_DISABLED 0x10 > +#define VCODEC_DEC_4K_CODED_WIDTH 4096U > +#define VCODEC_DEC_4K_CODED_HEIGHT 2304U > + > +#define MTK_VDEC_MIN_W 64U > +#define MTK_VDEC_MIN_H 64U > +#define MTK_VDEC_MAX_W 2048U > +#define MTK_VDEC_MAX_H 1088U > +#define DFT_CFG_WIDTH MTK_VDEC_MIN_W > +#define DFT_CFG_HEIGHT MTK_VDEC_MIN_H > + > +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 }, > + }, > + { > + .fourcc = V4L2_PIX_FMT_VP9, > + .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) > + > + > +const struct vb2_ops mtk_vdec_vb2_ops; > + > +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]; > +} > + > +static struct vb2_buffer *get_display_buffer(struct mtk_vcodec_ctx *ctx) > +{ > + struct vdec_fb *disp_frame_buffer; > + struct vb2_queue *vq; > + struct mtk_video_buf *dstbuf; > + struct vdec_fb *frame_buffer; > + > + mtk_v4l2_debug(3, "[%d]", ctx->idx); > + 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->idx); > + return NULL; > + } > + > + if (disp_frame_buffer == NULL) { > + mtk_v4l2_debug(3, "No display frame buffer"); > + return NULL; > + } > + > + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); > + if (!vq) { > + mtk_v4l2_err("Cannot find V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE queue!"); > + return NULL; > + } > + > + frame_buffer = disp_frame_buffer; > + dstbuf = container_of(frame_buffer, struct mtk_video_buf, frame_buffer); > + mutex_lock(&dstbuf->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; > + dstbuf->nonrealdisplay = false; > + mtk_v4l2_debug(2, > + "[%d]status=%x queue idx=%d to done_list %d", > + ctx->idx, 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(&dstbuf->lock); > + return &dstbuf->vb.vb2_buf; > +} > + > +static struct vb2_buffer *get_free_buffer(struct mtk_vcodec_ctx *ctx) > +{ > + void *tmp_frame_addr; > + struct vb2_queue *vq; > + struct mtk_video_buf *dstbuf; > + struct vdec_fb *frame_buffer; > + > + if (vdec_if_get_param(ctx, > + GET_PARAM_FREE_FRAME_BUFFER, > + &tmp_frame_addr)) { > + mtk_v4l2_err("[%d] Error!! Cannot get param", ctx->idx); > + return NULL; > + } > + if (tmp_frame_addr == NULL) { > + mtk_v4l2_debug(3, " No free frame buffer"); > + return NULL; > + } > + > + mtk_v4l2_debug(3, "[%d] tmp_frame_addr = 0x%p", > + ctx->idx, tmp_frame_addr); > + > + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); > + if (!vq) { > + mtk_v4l2_err("Cannot find V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE queue!"); > + return NULL; > + } > + > + frame_buffer = tmp_frame_addr; > + dstbuf = container_of(frame_buffer, struct mtk_video_buf, frame_buffer); > + > + mutex_lock(&dstbuf->lock); > + if (dstbuf->used) { > + if ((dstbuf->queued_in_vb2) && > + (dstbuf->queued_in_v4l2) && > + (frame_buffer->status == FB_ST_FREE)) { > + mtk_v4l2_debug(2, > + "[%d]status=%x queue idx=%d to rdy_queue %d", > + ctx->idx, 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)) { > + mtk_v4l2_debug(2, > + "[%d]status=%x queue idx=%d to rdy_queue", > + ctx->idx, frame_buffer->status, > + dstbuf->vb.vb2_buf.index); > + v4l2_m2m_buf_queue(ctx->m2m_ctx, &dstbuf->vb); > + dstbuf->queued_in_vb2 = true; > + } else { > + mtk_v4l2_debug(2, > + "[%d]status=%x err queue idx=%d %d %d", > + ctx->idx, frame_buffer->status, > + dstbuf->vb.vb2_buf.index, > + dstbuf->queued_in_vb2, > + dstbuf->queued_in_v4l2); > + } > + dstbuf->used = false; > + } > + mutex_unlock(&dstbuf->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 int 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->idx); > + v4l2_event_queue_fh(&ctx->fh, &ev_src_ch); > + > + return 0; > +} > + > +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"); > + > + clean_display_buffer(ctx); > + clean_free_buffer(ctx); > +} > + > +static bool mtk_vdec_pic_info_update(struct mtk_vcodec_ctx *ctx) > +{ > + int dpbsize; > + > + 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->idx); > + return false; > + } > + > + 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) > + return false; > + > + if ((ctx->last_decoded_picinfo.pic_w != ctx->picinfo.pic_w) || > + (ctx->last_decoded_picinfo.pic_h != ctx->picinfo.pic_h)) { > + > + mtk_v4l2_debug(1, > + "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)", > + ctx->idx, 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); > + > + vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize); > + if (dpbsize == 0) > + dpbsize = 1; > + ctx->dpb_count = dpbsize; > + return true; > + } > + > + return false; > +} > + > +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_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->idx); > + 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->idx); > + 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_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_buf, vb); > + > + buf.va = vb2_plane_vaddr(src_buf, 0); > + buf.dma_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); > + buf.size = (unsigned int)src_buf->planes[0].bytesused; > + if (!buf.va) { > + v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx); > + mtk_v4l2_err("[%d] idx=%d src_addr is NULL!!", > + ctx->idx, 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->idx); > + mtk_v4l2_debug(3, > + "[%d] Bitstream VA=%p DMA=%llx Size=0x%lx vb=%p", > + ctx->idx, buf.va, > + (u64)buf.dma_addr, > + buf.size, src_buf); > + > + mtk_v4l2_debug(3, > + "idx=%d Framebuf pfb=%p VA=%p Y_DMA=%llx C_DMA=%llx Size=0x%lx", > + dst_buf->index, pfb, > + pfb->base_y.va, (u64)pfb->base_y.dma_addr, > + (u64)pfb->base_c.dma_addr, pfb->base_y.size); > + > + if (src_buf_info->lastframe == true) { > + /* 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; > + > + 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); > + } else { > + > + dst_buf_info->vb.timestamp > + = src_buf_info->vb.timestamp; > + dst_buf_info->vb.timecode > + = src_buf_info->vb.timecode; > + mutex_lock(&dst_buf_info->lock); > + dst_buf_info->used = true; > + mutex_unlock(&dst_buf_info->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=(%lu %lu) dst_buf[%d] vdec_if_decode() ret=%d res_chg=%d===>", > + ctx->idx, > + src_buf->index, > + src_buf_info->lastframe, > + buf.size, > + src_buf_info->vb.timestamp.tv_sec, > + src_buf_info->vb.timestamp.tv_usec, > + 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 == 0) && (res_chg == true)) { > + 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); > + > +} > + > +int mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx) > +{ > + mutex_unlock(&ctx->dev->dec_mutex); > + return 0; > +} > + > +int mtk_vdec_lock(struct mtk_vcodec_ctx *ctx) > +{ > + mutex_lock(&ctx->dev->dec_mutex); > + return 0; > +} > + > +int m2mctx_vdec_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->idx); > + > + 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_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; > + > + 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_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; > + > + ret = vb2_queue_init(dst_vq); > + if (ret) { > + vb2_queue_release(src_vq); > + mtk_v4l2_err("Failed to initialize videobuf2 queue(capture)"); > + } > + > + return ret; > +} > + > +void mtk_vcodec_vdec_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); > + > + 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->colorspace = V4L2_COLORSPACE_REC709; > + q_data->field = V4L2_FIELD_NONE; > + ctx->q_data[MTK_Q_DATA_DST].sizeimage[0] = > + DFT_CFG_WIDTH * DFT_CFG_HEIGHT; > + ctx->q_data[MTK_Q_DATA_DST].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->colorspace = V4L2_COLORSPACE_REC709; > + q_data->field = V4L2_FIELD_NONE; > + > + q_data->fmt = &mtk_video_formats[CAP_FMT_IDX]; > + > + 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_streamon(struct file *file, void *priv, > + enum v4l2_buf_type type) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv); > + > + mtk_v4l2_debug(3, "[%d] (%d)", ctx->idx, type); > + > + return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); > +} > + > +static int vidioc_vdec_streamoff(struct file *file, void *priv, > + enum v4l2_buf_type type) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv); > + > + mtk_v4l2_debug(3, "[%d] (%d)", ctx->idx, type); > + return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); > +} > + > +static int vidioc_vdec_reqbufs(struct file *file, void *priv, > + struct v4l2_requestbuffers *reqbufs) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv); > + int ret; > + > + mtk_v4l2_debug(3, "[%d] (%d) count=%d", ctx->idx, > + reqbufs->type, reqbufs->count); > + ret = v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); > + > + return ret; > +} Please use the v4l2_m2m_ioctl_* helper functions were applicable. > + > +static int vidioc_vdec_querybuf(struct file *file, void *priv, > + struct v4l2_buffer *buf) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv); > + > + mtk_v4l2_debug(3, "[%d] (%d) id=%d", ctx->idx, > + buf->type, buf->index); > + return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); > +} > + > +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_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->idx); > + 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_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->idx, 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 QBUF after unrecoverable error", > + ctx->idx); > + return -EIO; > + } > + > + return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); > +} > + > +static int vidioc_vdec_expbuf(struct file *file, void *priv, > + struct v4l2_exportbuffer *eb) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv); > + > + return v4l2_m2m_expbuf(file, ctx->m2m_ctx, eb); > +} > + > +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)); > + cap->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING; > + cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; See my comment about the new device_caps field in struct video_device from my review of the encoder driver. > + > + return 0; > +} > + > +static int vidioc_vdec_unsubscribe_evt(struct v4l2_fh *fh, > + const struct v4l2_event_subscription *sub) > +{ > + switch (sub->type) { > + case V4L2_EVENT_EOS: > + case V4L2_EVENT_SOURCE_CHANGE: > + return v4l2_event_unsubscribe(fh, sub); > + default: > + return -EINVAL; > + } > +} No need for this function, just use v4l2_event_unsubscribe. > + > +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 -EINVAL; Can't you just call v4l2_ctrl_subscribe_event() in the default case? > + } > +} > + > +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 0; > +} > + > +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 0; > +} > + > +static int vidioc_vdec_g_crop(struct file *file, void *priv, > + struct v4l2_crop *cr) Don't use g_crop, use g_selection instead. The selection API is a superset of the old crop API. > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(priv); > + > + if (ctx->state < MTK_STATE_HEADER) > + return -EINVAL; > + > + if ((ctx->q_data[MTK_Q_DATA_SRC].fmt->fourcc == V4L2_PIX_FMT_H264) || > + (ctx->q_data[MTK_Q_DATA_SRC].fmt->fourcc == V4L2_PIX_FMT_VP8) || > + (ctx->q_data[MTK_Q_DATA_SRC].fmt->fourcc == V4L2_PIX_FMT_VP9)) { > + > + if (vdec_if_get_param(ctx, > + GET_PARAM_CROP_INFO, > + cr)) { > + mtk_v4l2_debug(2, > + "[%d]Error!! Cannot get param : GET_PARAM_CROP_INFO ERR", > + ctx->idx); > + cr->c.left = 0; > + cr->c.top = 0; > + cr->c.width = ctx->picinfo.buf_w; > + cr->c.height = ctx->picinfo.buf_h; > + } > + mtk_v4l2_debug(2, "Cropping info: l=%d t=%d w=%d h=%d", > + cr->c.left, cr->c.top, cr->c.width, > + cr->c.height); > + } else { > + cr->c.left = 0; > + cr->c.top = 0; > + cr->c.width = ctx->picinfo.pic_w; > + cr->c.height = ctx->picinfo.pic_h; > + mtk_v4l2_debug(2, "Cropping info: w=%d h=%d fw=%d fh=%d", > + cr->c.width, cr->c.height, ctx->picinfo.buf_w, > + ctx->picinfo.buf_h); > + } > + 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 vb2_queue *vq; > + struct mtk_q_data *q_data; > + int ret; > + struct mtk_video_fmt *fmt; > + > + mtk_v4l2_debug(3, "[%d]", ctx->idx); > + > + fmt = mtk_vdec_find_format(f); > + if (fmt == NULL) { > + mtk_v4l2_err("mtk_venc_find_format fail"); > + return ret; > + } > + > + 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; > + } > + > + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); > + if (!vq) > + return -EINVAL; > + > + q_data = mtk_vdec_get_q_data(ctx, f->type); > + if (!q_data) > + return -EINVAL; > + > + if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { > + q_data->fmt = fmt; > + q_data->sizeimage[0] = pix_mp->plane_fmt[0].sizeimage; > + pix_mp->plane_fmt[0].bytesperline = 0; > + pix_mp->width = 0; > + pix_mp->height = 0; > + > + 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->idx, ret); > + return -EINVAL; > + } > + ctx->state = MTK_STATE_INIT; > + } > + } else { > + q_data->fmt = fmt; > + } > + > + 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(1, "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; > + f->flags = 0; No need. > + memset(f->reserved, 0, sizeof(f->reserved)); No need. The core will automatically set flags and reserved. > + > + if (mtk_video_formats[i].type != MTK_FMT_DEC) > + f->flags |= V4L2_FMT_FLAG_COMPRESSED; No need for this, this is automatically done for you. Note: to support VP9 the DocBook documentation has to be updated and so does v4l_fill_fmtdesc() in drivers/media/v4l2-core/v4l2-ioctl.c > + > + 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); > + > + if ((f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) && > + (ctx->state >= MTK_STATE_HEADER)) { > + /* previous decode might have resolution change that make > + * picinfo changed update context'x picinfo here to make sure > + * we know what report to user space > + */ > + memcpy(&ctx->picinfo, &ctx->last_decoded_picinfo, > + sizeof(struct vdec_pic_info)); > + 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; > + pix_mp->field = V4L2_FIELD_NONE; > + > + /* > + * 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->field = V4L2_FIELD_NONE; > + 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->field = V4L2_FIELD_NONE; > + 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] state=%d Format could not be read %d, not ready yet!", > + ctx->idx, ctx->state, f->type); > + return -EAGAIN; > + } > + > + return 0; > +} > + > +static int vb2ops_vdec_queue_setup(struct vb2_queue *vq, > + const void *parg, Just like the encoder driver this patch needs to be rebased. The latest code no longer has the parg argument. > + unsigned int *nbuffers, > + unsigned int *nplanes, > + unsigned int sizes[], void *alloc_ctxs[]) > +{ > + struct mtk_vcodec_ctx *ctx = vb2_get_drv_priv(vq); > + struct mtk_q_data *q_data; > + > + q_data = mtk_vdec_get_q_data(ctx, vq->type); > + > + switch (vq->type) { > + case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: > + *nplanes = 1; > + > + sizes[0] = q_data->sizeimage[0]; > + alloc_ctxs[0] = ctx->dev->alloc_ctx; > + break; > + case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: > + if (ctx->state < MTK_STATE_HEADER) > + return -EINVAL; > + > + /* > + * Output plane count is 2 - one for Y and one for CbCr > + */ > + *nplanes = 2; > + > + mtk_v4l2_debug(1, > + "[%d]\t get %d plane(s), ctx->dpb_count = %d, %d buffer(s)", > + ctx->idx, *nplanes, ctx->dpb_count, *nbuffers); > + > + sizes[0] = q_data->sizeimage[0]; > + sizes[1] = q_data->sizeimage[1]; > + alloc_ctxs[0] = ctx->dev->alloc_ctx; > + alloc_ctxs[1] = ctx->dev->alloc_ctx; > + break; > + default: > + break; > + } > + > + mtk_v4l2_debug(1, > + "[%d]\t type = %d, get %d plane(s), %d buffer(s) of size 0x%x 0x%x ", > + ctx->idx, 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->idx, 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 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_buf *buf = container_of(vb2_v4l2, > + struct mtk_video_buf, vb); > + > + mtk_v4l2_debug(3, "[%d] (%d) id=%d, vb=%p", > + ctx->idx, 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) { > + struct vb2_buffer *src_buf; > + struct mtk_vcodec_mem buf; > + bool res_chg = false; > + int ret = 0; > + int dpbsize = 1; > + > + v4l2_m2m_buf_queue(ctx->m2m_ctx, vb2_v4l2); > + > + if (ctx->state == MTK_STATE_INIT) { > + src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); > + if (!src_buf) { > + mtk_v4l2_err("No src buffer"); > + return; > + } > + > + 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; > + mtk_v4l2_debug(2, > + "[%d] buf idx=%d va=%p dma=%llx size=%zu", > + ctx->idx, > + src_buf->index, > + buf.va, (u64)buf.dma_addr, buf.size); > + > + ret = vdec_if_decode(ctx, &buf, NULL, &res_chg); > + if (ret) { > + 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_err("[%d] vdec_if_decode() src_buf=%d, size=%zu, fail=%d", > + ctx->idx, > + src_buf->index, > + buf.size, ret); > + 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->idx); > + return; > + } > + > + memcpy(&ctx->last_decoded_picinfo, &ctx->picinfo, > + sizeof(struct vdec_pic_info)); > + 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->idx, > + 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]); > + > + vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize); > + if (dpbsize == 0) { > + mtk_v4l2_debug(2, > + "[%d] vdec_if_get_param() GET_PARAM_DPB_SIZE fail=%d", > + ctx->idx, ret); > + dpbsize = 1; > + } > + ctx->dpb_count = dpbsize; > + ctx->state = MTK_STATE_HEADER; > + mtk_v4l2_debug(1, "[%d] dpbsize=%d", ctx->idx, > + ctx->dpb_count); > + } else { > + mtk_v4l2_debug(1, "[%d] already init driver %d", > + ctx->idx, ctx->state); > + } > + > + } else { > + mutex_lock(&buf->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(&buf->lock); > + } > +} > + > +static void vb2ops_vdec_buf_finish(struct vb2_buffer *vb) > +{ > + if (vb->vb2_queue->type == > + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { > + struct vb2_v4l2_buffer *vb2_v4l2; > + struct mtk_video_buf *buf; > + > + vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf); > + buf = container_of(vb2_v4l2, struct mtk_video_buf, vb); > + mutex_lock(&buf->lock); > + buf->queued_in_v4l2 = false; > + buf->queued_in_vb2 = false; > + mutex_unlock(&buf->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_buf *buf = container_of(vb2_v4l2, > + struct mtk_video_buf, vb); > + > + if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { > + buf->used = false; > + buf->ready_to_display = false; > + buf->nonrealdisplay = false; > + buf->queued_in_v4l2 = false; > + mutex_init(&buf->lock); > + } 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(1, "[%d] (%d) state=(%x) ctx->decoded_frame_cnt=%d", > + ctx->idx, q->type, ctx->state, ctx->decoded_frame_cnt); > + > + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { > + src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); > + while (src_buf) { > + v4l2_m2m_buf_done(to_vb2_v4l2_buffer(src_buf), > + VB2_BUF_STATE_ERROR); > + src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); > + } > + } else if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { > + int i; > + struct vb2_v4l2_buffer *vb2_v4l2; > + struct mtk_video_buf *buf; > + > + if (ctx->state >= MTK_STATE_HEADER) > + mtk_vdec_flush_decoder(ctx); > + > + ctx->state = MTK_STATE_FLUSH; > + > + dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); > + while (dst_buf) { > + 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); > + dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); > + } > + > + for (i = 0; i < q->num_buffers; ++i) { > + if (q->bufs[i]->state == VB2_BUF_STATE_ACTIVE) { > + vb2_v4l2 = container_of(q->bufs[i], > + struct vb2_v4l2_buffer, vb2_buf); > + buf = container_of(vb2_v4l2, > + struct mtk_video_buf, vb); > + > + mtk_v4l2_debug(1, "[%d] idx=%d, type=%d, [%d %d] %d -> VB2_BUF_STATE_ERROR", > + ctx->idx, i, q->type, > + buf->queued_in_vb2, > + buf->queued_in_v4l2, > + (int)q->bufs[i]->state); > + v4l2_m2m_buf_done(vb2_v4l2, > + 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->idx); > + > + if (!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx)) > + return 0; > + > + if (!v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) > + return 0; > + > + 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); > + > + switch (ctrl->id) { > + case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE: > + if (ctx->state >= MTK_STATE_HEADER) { > + ctrl->val = ctx->dpb_count; > + } else { > + mtk_v4l2_err("Seqinfo not ready"); > + ctrl->val = 1; > + return -EAGAIN; > + } > + break; > + default: > + mtk_v4l2_err("ctrl-id=%d not support!", ctrl->id); > + return -EINVAL; > + } > + return 0; > +} > + > +static const struct v4l2_ctrl_ops mtk_vcodec_dec_ctrl_ops = { > + .g_volatile_ctrl = mtk_vdec_g_v_ctrl, > +}; > + > +int mtk_vdec_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, > + 1, 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; > +} > + > +void mtk_vdec_ctrls_free(struct mtk_vcodec_ctx *ctx) > +{ > + v4l2_ctrl_handler_free(&ctx->ctrl_hdl); > +} > + > +static void m2mops_vdec_lock(void *m2m_priv) > +{ > + struct mtk_vcodec_ctx *ctx = m2m_priv; > + > + mtk_v4l2_debug(3, "[%d]", ctx->idx); > + 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->idx); > + 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, > +}; > + > +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 = vidioc_vdec_streamon, > + .vidioc_streamoff = vidioc_vdec_streamoff, > + > + .vidioc_reqbufs = vidioc_vdec_reqbufs, > + .vidioc_querybuf = vidioc_vdec_querybuf, > + .vidioc_qbuf = vidioc_vdec_qbuf, > + .vidioc_expbuf = vidioc_vdec_expbuf, > + .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_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 = vidioc_vdec_unsubscribe_evt, > + .vidioc_g_crop = vidioc_vdec_g_crop, > +}; > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h > new file mode 100644 > index 0000000..cb5cb42 > --- /dev/null > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h > @@ -0,0 +1,81 @@ > +/* > +* Copyright (c) 2016 MediaTek Inc. > +* Author: PC Chen <pc.chen@xxxxxxxxxxxx> > +* Tiffany Lin <tiffany.lin@xxxxxxxxxxxx> > +* > +* 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. > +*/ > + > +#ifndef _MTK_VCODEC_DEC_H_ > +#define _MTK_VCODEC_DEC_H_ > + > +#include <media/videobuf2-core.h> > +#include <media/videobuf2-v4l2.h> > + > +/** > + * struct vdec_fb - decoder frame buffer > + * @base_y : Y plane memory info > + * @base_c : C plane memory info > + * @status : frame buffer status (vdec_fb_status) > + */ > +struct vdec_fb { > + struct mtk_vcodec_mem base_y; > + struct mtk_vcodec_mem base_c; > + unsigned int status; > +}; > + > +/** > + * struct mtk_video_buf - Private data related to each VB2 buffer. > + * @b: VB2 buffer > + * @list: link list > + * @used: Output buffer contain decoded frame data > + * @ready_to_display: Output buffer not display yet > + * @nonrealdisplay: Output buffer is not display frame > + * @queued_in_vb2: Output buffer is queue in vb2 > + * @queued_in_v4l2: Output buffer is in v4l2 > + * @lastframe: Intput buffer is last buffer - EOS > + * @frame_buffer: Decode status of output buffer > + * @lock: V4L2 and decode thread should get mutex > + * before r/w info in mtk_video_buf > + */ > +struct mtk_video_buf { > + struct vb2_v4l2_buffer vb; > + struct list_head list; > + > + bool used; > + bool ready_to_display; > + bool nonrealdisplay; > + bool queued_in_vb2; > + bool queued_in_v4l2; > + bool lastframe; > + struct vdec_fb frame_buffer; > + struct mutex lock; > +}; > + > +extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops; > +extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops; > + > + > +/* > + * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to > + * get/release lock before/after access decoder hw. > + * mtk_vdec_lock get decoder hw lock and set curr_ctx > + * to ctx instance that get lock > + */ > +int mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx); > +int mtk_vdec_lock(struct mtk_vcodec_ctx *ctx); > +int m2mctx_vdec_queue_init(void *priv, struct vb2_queue *src_vq, > + struct vb2_queue *dst_vq); > +void mtk_vcodec_dec_set_default_params(struct mtk_vcodec_ctx *ctx); > +void mtk_vcodec_vdec_release(struct mtk_vcodec_ctx *ctx); > +int mtk_vdec_ctrls_setup(struct mtk_vcodec_ctx *ctx); > +void mtk_vdec_ctrls_free(struct mtk_vcodec_ctx *ctx); > + > +#endif /* _MTK_VCODEC_DEC_H_ */ > diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c > new file mode 100644 > index 0000000..34e3217 > --- /dev/null > +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c > @@ -0,0 +1,469 @@ > +/* > +* Copyright (c) 2016 MediaTek Inc. > +* Author: PC Chen <pc.chen@xxxxxxxxxxxx> > +* Tiffany Lin <tiffany.lin@xxxxxxxxxxxx> > +* > +* 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/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 "vdec_drv_if.h" > +#include "mtk_vpu.h" > + > +module_param(mtk_v4l2_dbg_level, int, S_IRUGO | S_IWUSR); > +module_param(mtk_vcodec_dbg, bool, S_IRUGO | S_IWUSR); > + > +#define VDEC_HW_ACTIVE 0x10 > +#define VDEC_IRQ_CFG 0x11 > +#define VDEC_IRQ_CLR 0x10 > +#define VDEC_IRQ_CFG_REG 0xa4 > + > + > +/* Wake up context wait_queue */ > +static void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason) > +{ > + ctx->int_cond = 1; > + ctx->int_type = reason; > + wake_up_interruptible(&ctx->queue); > +} > + > +static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv) > +{ > + struct mtk_vcodec_dev *dev = priv; > + unsigned long flags; > + struct mtk_vcodec_ctx *ctx; > + unsigned int cg_status = 0; > + unsigned int dec_done_status = 0; > + > + spin_lock_irqsave(&dev->irqlock, flags); > + ctx = dev->curr_ctx; > + spin_unlock_irqrestore(&dev->irqlock, flags); > + > + cg_status = readl(dev->reg_base[0] + (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(dev->reg_base[1] + VDEC_IRQ_CFG_REG); > + ctx->irq_status = dec_done_status; > + if ((dec_done_status & (0x1 << 16)) != 0x10000) > + return IRQ_HANDLED; > + > + /* clear interrupt */ > + writel((readl(dev->reg_base[1] + VDEC_IRQ_CFG_REG) | VDEC_IRQ_CFG), > + dev->reg_base[1] + VDEC_IRQ_CFG_REG); > + writel((readl(dev->reg_base[1] + VDEC_IRQ_CFG_REG) & ~VDEC_IRQ_CLR), > + dev->reg_base[1] + VDEC_IRQ_CFG_REG); > + > + wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED); > + > + mtk_v4l2_debug(3, > + "mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x", > + ctx->idx, dec_done_status); > + > + > + return IRQ_HANDLED; > +} > + > +static int fops_vcodec_open(struct file *file) > +{ > + struct video_device *vfd = video_devdata(file); > + struct mtk_vcodec_dev *dev = video_drvdata(file); > + struct mtk_vcodec_ctx *ctx = NULL; > + int ret = 0; > + > + if (dev->instance_mask == ~0UL) { > + mtk_v4l2_err("Too many open contexts"); > + ret = -EBUSY; > + goto err_alloc; > + } > + > + mutex_lock(&dev->dev_mutex); > + > + ctx = devm_kzalloc(&dev->plat_dev->dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) { > + ret = -ENOMEM; > + goto err_alloc; > + } > + > + ctx->idx = ffz(dev->instance_mask); > + 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); > + > + if (vfd == dev->vfd_dec) { > + ctx->type = MTK_INST_DECODER; > + ret = mtk_vdec_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, > + &m2mctx_vdec_queue_init); > + if (IS_ERR(ctx->m2m_ctx)) { > + ret = PTR_ERR(ctx->m2m_ctx); > + mtk_v4l2_err("Failed to v4l2_m2m_ctx_init() (%d)", > + ret); > + goto err_ctx_init; > + } > + mtk_vcodec_dec_set_default_params(ctx); > + } else { > + mtk_v4l2_err("Invalid vfd !"); > + ret = -ENOENT; > + goto err_ctx_init; > + } > + > + if (v4l2_fh_is_singular(&ctx->fh)) { > + mtk_vcodec_dec_pw_on(&dev->pm); > + ret = vpu_load_firmware(dev->vpu_plat_dev); > + if (ret < 0) { > + 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); > + } > + > + set_bit(ctx->idx, &dev->instance_mask); > + dev->num_instances++; > + 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->idx); > + > + return ret; > + > + /* Deinit when failure occurred */ > +err_load_fw: > + v4l2_m2m_ctx_release(ctx->m2m_ctx); > +err_ctx_init: > + mtk_vdec_ctrls_free(ctx); > +err_ctrls_setup: > + v4l2_fh_del(&ctx->fh); > + v4l2_fh_exit(&ctx->fh); > + devm_kfree(&dev->plat_dev->dev, ctx); > +err_alloc: > + 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->idx); > + > + mutex_lock(&dev->dev_mutex); > + v4l2_m2m_ctx_release(ctx->m2m_ctx); > + mtk_vcodec_vdec_release(ctx); > + mtk_vdec_ctrls_free(ctx); > + v4l2_fh_del(&ctx->fh); > + v4l2_fh_exit(&ctx->fh); > + list_del_init(&ctx->list); > + dev->num_instances--; > + if (dev->num_instances == 0) > + mtk_vcodec_dec_pw_off(&dev->pm); > + clear_bit(ctx->idx, &dev->instance_mask); > + devm_kfree(&dev->plat_dev->dev, ctx); > + mutex_unlock(&dev->dev_mutex); > + return 0; > +} > + > +static unsigned int fops_vcodec_poll(struct file *file, > + struct poll_table_struct *wait) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data); > + struct mtk_vcodec_dev *dev = ctx->dev; > + int ret; > + > + mutex_lock(&dev->dev_mutex); > + ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); > + mutex_unlock(&dev->dev_mutex); > + > + return ret; > +} > + > +static int fops_vcodec_mmap(struct file *file, struct vm_area_struct *vma) > +{ > + struct mtk_vcodec_ctx *ctx = fh_to_ctx(file->private_data); > + > + return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); > +} > + > +static const struct v4l2_file_operations mtk_vcodec_fops = { > + .owner = THIS_MODULE, > + .open = fops_vcodec_open, > + .release = fops_vcodec_release, > + .poll = fops_vcodec_poll, > + .unlocked_ioctl = video_ioctl2, > + .mmap = fops_vcodec_mmap, You should be able to use the v4l2_m2m_fop helper functions for poll and mmap. > +}; > + > +static void mtk_vcodec_dec_reset_handler(void *priv) > +{ > + struct mtk_vcodec_dev *dev = priv; > + struct mtk_vcodec_ctx *ctx; > + > + mtk_v4l2_debug(0, "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->idx); > + } > + mutex_unlock(&dev->dev_mutex); > +} > + > +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; > + int reg_base_num; > + > + 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; > + } > + > + reg_base_num = NUM_MAX_VDEC_REG_BASE; > + for (i = 0; i < reg_base_num; 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(dev->reg_base[i])) { > + dev_err(&pdev->dev, > + "devm_ioremap_resource %d failed.", i); > + ret = PTR_ERR(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); > + ret = -EINVAL; > + goto err_res; > + } > + > + disable_irq(dev->dec_irq); > + mutex_init(&dev->dev_mutex); > + mutex_init(&dev->dec_mutex); > + spin_lock_init(&dev->irqlock); > + > + snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s", > + "[MTK_V4L2]"); > + > + ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); > + if (ret) { > + mtk_v4l2_err("v4l2_device_register err=%d", ret); > + return ret; > + } > + > + 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; > + > + 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->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); > + if (IS_ERR(dev->alloc_ctx)) { > + mtk_v4l2_err("Failed to alloc vb2 dma context 0"); > + ret = PTR_ERR(dev->alloc_ctx); > + goto err_vb2_ctx_init; > + } > + > + dev->m2m_dev_dec = v4l2_m2m_init(&mtk_vdec_m2m_ops); > + if (IS_ERR(dev->m2m_dev_dec)) { > + mtk_v4l2_err("Failed to init mem2mem dec device"); > + ret = PTR_ERR(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: > + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); > +err_vb2_ctx_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); > + > + mtk_v4l2_debug_enter(); > + flush_workqueue(dev->decode_workqueue); > + destroy_workqueue(dev->decode_workqueue); > + if (dev->m2m_dev_dec) > + v4l2_m2m_release(dev->m2m_dev_dec); > + if (dev->alloc_ctx) > + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); > + > + 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 int mtk_vcodec_vdec_pm_runtime_suspend(struct device *dev) > +{ > + struct platform_device *pdev = to_platform_device(dev); > + struct mtk_vcodec_dev *m_dev = platform_get_drvdata(pdev); > + > + mtk_v4l2_debug(3, "m_dev->num_instances=%d", m_dev->num_instances); > + > + if (m_dev->num_instances == 0) > + return 0; > + > + return 0; > +} > + > +static int mtk_vcodec_vdec_pm_runtime_resume(struct device *dev) > +{ > + struct platform_device *pdev = to_platform_device(dev); > + struct mtk_vcodec_dev *m_dev = platform_get_drvdata(pdev); > + > + mtk_v4l2_debug(3, "m_dev->num_instances=%d", m_dev->num_instances); > + > + if (m_dev->num_instances == 0) > + return 0; > + > + return 0; > +} > + > +static const struct dev_pm_ops mtk_vcodec_vdec_pm_ops = { > + SET_RUNTIME_PM_OPS(mtk_vcodec_vdec_pm_runtime_suspend, > + mtk_vcodec_vdec_pm_runtime_resume, > + NULL) > +}; > + > +static struct platform_driver mtk_vcodec_dec_driver = { > + .probe = mtk_vcodec_probe, > + .remove = mtk_vcodec_dec_remove, > + .driver = { > + .name = MTK_VCODEC_DEC_NAME, > + .owner = THIS_MODULE, > + .of_match_table = mtk_vcodec_match, > + .pm = &mtk_vcodec_vdec_pm_ops, > + }, > +}; > + > +module_platform_driver(mtk_vcodec_dec_driver); > + > +MODULE_LICENSE("GPL v2"); > +MODULE_DESCRIPTION("Mediatek video codec V4L2 driver"); Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html