[PATCH v5 3/9] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver

From: Tiffany Lin
Date: Fri Sep 02 2016 - 08:20:56 EST

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Add v4l2 layer decoder driver for MT8173

Signed-off-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx>
---
drivers/media/platform/mtk-vcodec/Makefile | 12 +-
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c | 1433 ++++++++++++++++++++
drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h | 88 ++
.../media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 394 ++++++
.../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 205 +++
.../media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h | 28 +
drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h | 62 +-
.../media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 8 +-
.../media/platform/mtk-vcodec/mtk_vcodec_intr.c | 3 +-
.../media/platform/mtk-vcodec/mtk_vcodec_util.c | 33 +-
.../media/platform/mtk-vcodec/mtk_vcodec_util.h | 5 +
drivers/media/platform/mtk-vcodec/vdec_drv_base.h | 55 +
drivers/media/platform/mtk-vcodec/vdec_drv_if.c | 112 ++
drivers/media/platform/mtk-vcodec/vdec_drv_if.h | 101 ++
drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h | 103 ++
drivers/media/platform/mtk-vcodec/vdec_vpu_if.c | 168 +++
drivers/media/platform/mtk-vcodec/vdec_vpu_if.h | 96 ++
17 files changed, 2884 insertions(+), 22 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
create mode 100644 drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
create mode 100644 drivers/media/platform/mtk-vcodec/vdec_vpu_if.h

diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile
index dc5cb00..b54e823 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 \
+ vdec_vpu_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..d634e61
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
@@ -0,0 +1,1433 @@
+/*
+* 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"
+
+#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;
+}
+
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..fe31193
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h
@@ -0,0 +1,88 @@
+/*
+* 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>
+
+#define VCODEC_CAPABILITY_4K_DISABLED 0x10
+#define VCODEC_DEC_4K_CODED_WIDTH 4096U
+#define VCODEC_DEC_4K_CODED_HEIGHT 2304U
+#define MTK_VDEC_MAX_W 2048U
+#define MTK_VDEC_MAX_H 1088U
+
+#define MTK_VDEC_IRQ_STATUS_DEC_SUCCESS 0x10000
+
+/**
+ * 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_dec_buf - Private data related to each VB2 buffer.
+ * @b: VB2 buffer
+ * @list: link list
+ * @used: Capture buffer contain decoded frame data and keep in
+ * codec data structure
+ * @ready_to_display: Capture buffer not display yet
+ * @queued_in_vb2: Capture buffer is queue in vb2
+ * @queued_in_v4l2: Capture buffer is in v4l2 driver, but not in vb2
+ * queue yet
+ * @lastframe: Intput buffer is last buffer - EOS
+ * @frame_buffer: Decode status, and buffer information of Capture buffer
+ *
+ * Note : These status information help us track and debug buffer state
+ */
+struct mtk_video_dec_buf {
+ struct vb2_v4l2_buffer vb;
+ struct list_head list;
+
+ bool used;
+ bool ready_to_display;
+ bool queued_in_vb2;
+ bool queued_in_v4l2;
+ bool lastframe;
+ struct vdec_fb frame_buffer;
+};
+
+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
+ */
+void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx);
+void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx);
+int mtk_vcodec_dec_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_dec_release(struct mtk_vcodec_ctx *ctx);
+int mtk_vcodec_dec_ctrls_setup(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..8070df9
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -0,0 +1,394 @@
+/*
+* 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/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, S_IRUGO | S_IWUSR);
+module_param(mtk_vcodec_dbg, bool, S_IRUGO | S_IWUSR);
+
+/* 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");
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
new file mode 100644
index 0000000..7eb8973
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -0,0 +1,205 @@
+/*
+* Copyright (c) 2016 MediaTek Inc.
+* Author: 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/clk.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <soc/mediatek/smi.h>
+
+#include "mtk_vcodec_dec_pm.h"
+#include "mtk_vcodec_util.h"
+#include "mtk_vpu.h"
+
+int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
+{
+ struct device_node *node;
+ struct platform_device *pdev;
+ struct device *dev;
+ struct mtk_vcodec_pm *pm;
+ int ret = 0;
+
+ pdev = mtkdev->plat_dev;
+ pm = &mtkdev->pm;
+ pm->mtkdev = mtkdev;
+ dev = &pdev->dev;
+ node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);
+ if (!node) {
+ mtk_v4l2_err("of_parse_phandle mediatek,larb fail!");
+ return -1;
+ }
+
+ pdev = of_find_device_by_node(node);
+ if (WARN_ON(!pdev)) {
+ of_node_put(node);
+ return -1;
+ }
+ pm->larbvdec = &pdev->dev;
+ pdev = mtkdev->plat_dev;
+ pm->dev = &pdev->dev;
+
+ pm->vcodecpll = devm_clk_get(&pdev->dev, "vcodecpll");
+ if (IS_ERR(pm->vcodecpll)) {
+ mtk_v4l2_err("devm_clk_get vcodecpll fail");
+ ret = PTR_ERR(pm->vcodecpll);
+ }
+
+ pm->univpll_d2 = devm_clk_get(&pdev->dev, "univpll_d2");
+ if (IS_ERR(pm->univpll_d2)) {
+ mtk_v4l2_err("devm_clk_get univpll_d2 fail");
+ ret = PTR_ERR(pm->univpll_d2);
+ }
+
+ pm->clk_cci400_sel = devm_clk_get(&pdev->dev, "clk_cci400_sel");
+ if (IS_ERR(pm->clk_cci400_sel)) {
+ mtk_v4l2_err("devm_clk_get clk_cci400_sel fail");
+ ret = PTR_ERR(pm->clk_cci400_sel);
+ }
+
+ pm->vdec_sel = devm_clk_get(&pdev->dev, "vdec_sel");
+ if (IS_ERR(pm->vdec_sel)) {
+ mtk_v4l2_err("devm_clk_get vdec_sel fail");
+ ret = PTR_ERR(pm->vdec_sel);
+ }
+
+ pm->vdecpll = devm_clk_get(&pdev->dev, "vdecpll");
+ if (IS_ERR(pm->vdecpll)) {
+ mtk_v4l2_err("devm_clk_get vdecpll fail");
+ ret = PTR_ERR(pm->vdecpll);
+ }
+
+ pm->vencpll = devm_clk_get(&pdev->dev, "vencpll");
+ if (IS_ERR(pm->vencpll)) {
+ mtk_v4l2_err("devm_clk_get vencpll fail");
+ ret = PTR_ERR(pm->vencpll);
+ }
+
+ pm->venc_lt_sel = devm_clk_get(&pdev->dev, "venc_lt_sel");
+ if (IS_ERR(pm->venc_lt_sel)) {
+ mtk_v4l2_err("devm_clk_get venc_lt_sel fail");
+ ret = PTR_ERR(pm->venc_lt_sel);
+ }
+
+ pm->vdec_bus_clk_src = devm_clk_get(&pdev->dev, "vdec_bus_clk_src");
+ if (IS_ERR(pm->vdec_bus_clk_src)) {
+ mtk_v4l2_err("devm_clk_get vdec_bus_clk_src");
+ ret = PTR_ERR(pm->vdec_bus_clk_src);
+ }
+
+ pm_runtime_enable(&pdev->dev);
+
+ return ret;
+}
+
+void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)
+{
+ pm_runtime_disable(dev->pm.dev);
+}
+
+void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
+{
+ int ret;
+
+ ret = pm_runtime_get_sync(pm->dev);
+ if (ret)
+ mtk_v4l2_err("pm_runtime_get_sync fail %d", ret);
+}
+
+void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
+{
+ int ret;
+
+ ret = pm_runtime_put_sync(pm->dev);
+ if (ret)
+ mtk_v4l2_err("pm_runtime_put_sync fail %d", ret);
+}
+
+void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
+{
+ int ret;
+
+ ret = clk_set_rate(pm->vcodecpll, 1482 * 1000000);
+ if (ret)
+ mtk_v4l2_err("clk_set_rate vcodecpll fail %d", ret);
+
+ ret = clk_set_rate(pm->vencpll, 800 * 1000000);
+ if (ret)
+ mtk_v4l2_err("clk_set_rate vencpll fail %d", ret);
+
+ ret = clk_prepare_enable(pm->vcodecpll);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable vcodecpll fail %d", ret);
+
+ ret = clk_prepare_enable(pm->vencpll);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable vencpll fail %d", ret);
+
+ ret = clk_prepare_enable(pm->vdec_bus_clk_src);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable vdec_bus_clk_src fail %d",
+ ret);
+
+ ret = clk_prepare_enable(pm->venc_lt_sel);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable venc_lt_sel fail %d", ret);
+
+ ret = clk_set_parent(pm->venc_lt_sel, pm->vdec_bus_clk_src);
+ if (ret)
+ mtk_v4l2_err("clk_set_parent venc_lt_sel vdec_bus_clk_src fail %d",
+ ret);
+
+ ret = clk_prepare_enable(pm->univpll_d2);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable univpll_d2 fail %d", ret);
+
+ ret = clk_prepare_enable(pm->clk_cci400_sel);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable clk_cci400_sel fail %d", ret);
+
+ ret = clk_set_parent(pm->clk_cci400_sel, pm->univpll_d2);
+ if (ret)
+ mtk_v4l2_err("clk_set_parent clk_cci400_sel univpll_d2 fail %d",
+ ret);
+
+ ret = clk_prepare_enable(pm->vdecpll);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable vdecpll fail %d", ret);
+
+ ret = clk_prepare_enable(pm->vdec_sel);
+ if (ret)
+ mtk_v4l2_err("clk_prepare_enable vdec_sel fail %d", ret);
+
+ ret = clk_set_parent(pm->vdec_sel, pm->vdecpll);
+ if (ret)
+ mtk_v4l2_err("clk_set_parent vdec_sel vdecpll fail %d", ret);
+
+ ret = mtk_smi_larb_get(pm->larbvdec);
+ if (ret)
+ mtk_v4l2_err("mtk_smi_larb_get larbvdec fail %d", ret);
+
+}
+
+void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)
+{
+ mtk_smi_larb_put(pm->larbvdec);
+ clk_disable_unprepare(pm->vdec_sel);
+ clk_disable_unprepare(pm->vdecpll);
+ clk_disable_unprepare(pm->univpll_d2);
+ clk_disable_unprepare(pm->clk_cci400_sel);
+ clk_disable_unprepare(pm->venc_lt_sel);
+ clk_disable_unprepare(pm->vdec_bus_clk_src);
+ clk_disable_unprepare(pm->vencpll);
+ clk_disable_unprepare(pm->vcodecpll);
+}
+
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
new file mode 100644
index 0000000..b8bf56f
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -0,0 +1,28 @@
+/*
+* Copyright (c) 2016 MediaTek Inc.
+* Author: 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_PM_H_
+#define _MTK_VCODEC_DEC_PM_H_
+
+#include "mtk_vcodec_drv.h"
+
+int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *dev);
+void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev);
+
+void mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
+void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
+void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm);
+void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm);
+
+#endif /* _MTK_VCODEC_DEC_PM_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index c8eaa41..d7eb8ef 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -22,13 +22,13 @@
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
#include <media/videobuf2-core.h>
-
+#include "mtk_vcodec_util.h"

#define MTK_VCODEC_DRV_NAME "mtk_vcodec_drv"
+#define MTK_VCODEC_DEC_NAME "mtk-vcodec-dec"
#define MTK_VCODEC_ENC_NAME "mtk-vcodec-enc"
#define MTK_PLATFORM_STR "platform:mt8173"

-
#define MTK_VCODEC_MAX_PLANES 3
#define MTK_V4L2_BENCHMARK 0
#define WAIT_INTR_TIMEOUT_MS 1000
@@ -179,6 +179,9 @@ struct mtk_enc_params {
* struct mtk_vcodec_pm - Power management data structure
*/
struct mtk_vcodec_pm {
+ struct clk *vdec_bus_clk_src;
+ struct clk *vencpll;
+
struct clk *vcodecpll;
struct clk *univpll_d2;
struct clk *clk_cci400_sel;
@@ -196,6 +199,32 @@ struct mtk_vcodec_pm {
};

/**
+ * struct vdec_pic_info - picture size information
+ * @pic_w: picture width
+ * @pic_h: picture height
+ * @buf_w: picture buffer width (64 aligned up from pic_w)
+ * @buf_h: picture buffer heiht (64 aligned up from pic_h)
+ * @y_bs_sz: Y bitstream size
+ * @c_bs_sz: CbCr bitstream size
+ * @y_len_sz: additional size required to store decompress information for y
+ * plane
+ * @c_len_sz: additional size required to store decompress information for cbcr
+ * plane
+ * E.g. suppose picture size is 176x144,
+ * buffer size will be aligned to 176x160.
+ */
+struct vdec_pic_info {
+ unsigned int pic_w;
+ unsigned int pic_h;
+ unsigned int buf_w;
+ unsigned int buf_h;
+ unsigned int y_bs_sz;
+ unsigned int c_bs_sz;
+ unsigned int y_len_sz;
+ unsigned int c_len_sz;
+};
+
+/**
* struct mtk_vcodec_ctx - Context (instance) private data.
*
* @type: type of the instance - decoder or encoder
@@ -209,9 +238,12 @@ struct mtk_vcodec_pm {
* @state: state of the context
* @param_change: indicate encode parameter type
* @enc_params: encoding parameters
+ * @dec_if: hooked decoder driver interface
* @enc_if: hoooked encoder driver interface
* @drv_handle: driver handle for specific decode/encode instance
*
+ * @picinfo: store picture info after header parsing
+ * @dpb_size: store dpb count after header parsing
* @int_cond: variable used by the waitqueue
* @int_type: type of the last interrupt
* @queue: waitqueue that can be used to wait for this context to
@@ -219,12 +251,16 @@ struct mtk_vcodec_pm {
* @irq_status: irq status
*
* @ctrl_hdl: handler for v4l2 framework
+ * @decode_work: worker for the decoding
* @encode_work: worker for the encoding
+ * @last_decoded_picinfo: pic information get from latest decode
*
* @colorspace: enum v4l2_colorspace; supplemental to pixelformat
* @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding
* @quantization: enum v4l2_quantization, colorspace quantization
* @xfer_func: enum v4l2_xfer_func, colorspace transfer function
+ * @lock: protect variables accessed by V4L2 threads and worker thread such as
+ * mtk_video_dec_buf.
*/
struct mtk_vcodec_ctx {
enum mtk_instance_type type;
@@ -239,28 +275,40 @@ struct mtk_vcodec_ctx {
enum mtk_encode_param param_change;
struct mtk_enc_params enc_params;

+ const struct vdec_common_if *dec_if;
const struct venc_common_if *enc_if;
unsigned long drv_handle;

+ struct vdec_pic_info picinfo;
+ int dpb_size;
+
int int_cond;
int int_type;
wait_queue_head_t queue;
unsigned int irq_status;

struct v4l2_ctrl_handler ctrl_hdl;
+ struct work_struct decode_work;
struct work_struct encode_work;
+ struct vdec_pic_info last_decoded_picinfo;

enum v4l2_colorspace colorspace;
enum v4l2_ycbcr_encoding ycbcr_enc;
enum v4l2_quantization quantization;
enum v4l2_xfer_func xfer_func;
+
+ int decoded_frame_cnt;
+ struct mutex lock;
+
};

/**
* struct mtk_vcodec_dev - driver data
* @v4l2_dev: V4L2 device to register video devices for.
+ * @vfd_dec: Video device for decoder
* @vfd_enc: Video device for encoder.
*
+ * @m2m_dev_dec: m2m device for decoder
* @m2m_dev_enc: m2m device for encoder.
* @plat_dev: platform device
* @vpu_plat_dev: mtk vpu platform device
@@ -271,7 +319,6 @@ struct mtk_vcodec_ctx {
* @reg_base: Mapped address of MTK Vcodec registers.
*
* @id_counter: used to identify current opened instance
- * @num_instances: counter of active MTK Vcodec instances
*
* @encode_workqueue: encode work queue
*
@@ -280,9 +327,11 @@ struct mtk_vcodec_ctx {
* @dev_mutex: video_device lock
* @queue: waitqueue for waiting for completion of device commands
*
+ * @dec_irq: decoder irq resource
* @enc_irq: h264 encoder irq resource
* @enc_lt_irq: vp8 encoder irq resource
*
+ * @dec_mutex: decoder hardware lock
* @enc_mutex: encoder hardware lock.
*
* @pm: power management control
@@ -291,8 +340,10 @@ struct mtk_vcodec_ctx {
*/
struct mtk_vcodec_dev {
struct v4l2_device v4l2_dev;
+ struct video_device *vfd_dec;
struct video_device *vfd_enc;

+ struct v4l2_m2m_dev *m2m_dev_dec;
struct v4l2_m2m_dev *m2m_dev_enc;
struct platform_device *plat_dev;
struct platform_device *vpu_plat_dev;
@@ -302,18 +353,19 @@ struct mtk_vcodec_dev {
void __iomem *reg_base[NUM_MAX_VCODEC_REG_BASE];

unsigned long id_counter;
- int num_instances;

+ struct workqueue_struct *decode_workqueue;
struct workqueue_struct *encode_workqueue;
-
int int_cond;
int int_type;
struct mutex dev_mutex;
wait_queue_head_t queue;

+ int dec_irq;
int enc_irq;
int enc_lt_irq;

+ struct mutex dec_mutex;
struct mutex enc_mutex;

struct mtk_vcodec_pm pm;
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 5cd2151..aa81f3c 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -188,7 +188,6 @@ static int fops_vcodec_open(struct file *file)
mtk_v4l2_debug(2, "Create instance [%d]@%p m2m_ctx=%p ",
ctx->id, ctx, ctx->m2m_ctx);

- dev->num_instances++;
list_add(&ctx->list, &dev->ctx_list);

mutex_unlock(&dev->dev_mutex);
@@ -218,18 +217,13 @@ static int fops_vcodec_release(struct file *file)
mtk_v4l2_debug(1, "[%d] encoder", ctx->id);
mutex_lock(&dev->dev_mutex);

- /*
- * Call v4l2_m2m_ctx_release to make sure the worker thread is not
- * running after venc_if_deinit.
- */
- v4l2_m2m_ctx_release(ctx->m2m_ctx);
mtk_vcodec_enc_release(ctx);
v4l2_fh_del(&ctx->fh);
v4l2_fh_exit(&ctx->fh);
v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
+ v4l2_m2m_ctx_release(ctx->m2m_ctx);

list_del_init(&ctx->list);
- dev->num_instances--;
kfree(ctx);
mutex_unlock(&dev->dev_mutex);
return 0;
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c
index 52e7e5c..113b209 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c
@@ -30,8 +30,7 @@ int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx, int command,
timeout_jiff = msecs_to_jiffies(timeout_ms);

ret = wait_event_interruptible_timeout(*waitqueue,
- (ctx->int_cond &&
- (ctx->int_type == command)),
+ ctx->int_cond,
timeout_jiff);

if (!ret) {
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
index 5e36513..46768c0 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
@@ -81,14 +81,37 @@ void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
return;
}

- dma_free_coherent(dev, size, mem->va, mem->dma_addr);
- mem->va = NULL;
- mem->dma_addr = 0;
- mem->size = 0;
-
mtk_v4l2_debug(3, "[%d] - va = %p", ctx->id, mem->va);
mtk_v4l2_debug(3, "[%d] - dma = 0x%lx", ctx->id,
(unsigned long)mem->dma_addr);
mtk_v4l2_debug(3, "[%d] size = 0x%lx", ctx->id, size);
+
+ dma_free_coherent(dev, size, mem->va, mem->dma_addr);
+ mem->va = NULL;
+ mem->dma_addr = 0;
+ mem->size = 0;
}
EXPORT_SYMBOL(mtk_vcodec_mem_free);
+
+void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
+ struct mtk_vcodec_ctx *ctx)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->irqlock, flags);
+ dev->curr_ctx = ctx;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+}
+EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
+
+struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev)
+{
+ unsigned long flags;
+ struct mtk_vcodec_ctx *ctx;
+
+ spin_lock_irqsave(&dev->irqlock, flags);
+ ctx = dev->curr_ctx;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+ return ctx;
+}
+EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
index d6345fc..7d55975 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
@@ -26,6 +26,7 @@ struct mtk_vcodec_mem {
};

struct mtk_vcodec_ctx;
+struct mtk_vcodec_dev;

extern int mtk_v4l2_dbg_level;
extern bool mtk_vcodec_dbg;
@@ -84,4 +85,8 @@ int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem);
void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
struct mtk_vcodec_mem *mem);
+void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
+ struct mtk_vcodec_ctx *ctx);
+struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev);
+
#endif /* _MTK_VCODEC_UTIL_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_base.h b/drivers/media/platform/mtk-vcodec/vdec_drv_base.h
new file mode 100644
index 0000000..ca022e3
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_drv_base.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PC Chen <pc.chen@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 _VDEC_DRV_BASE_
+#define _VDEC_DRV_BASE_
+
+#include "mtk_vcodec_drv.h"
+
+
+struct vdec_common_if {
+ /**
+ * (*init)() - initialize decode driver
+ * @ctx : [in] mtk v4l2 context
+ * @h_vdec : [out] driver handle
+ */
+ int (*init)(struct mtk_vcodec_ctx *ctx, unsigned long *h_vdec);
+
+ /**
+ * (*decode)() - trigger decode
+ * @h_vdec : [in] driver handle
+ * @bs : [in] input bitstream
+ * @fb : [in] frame buffer to store decoded frame
+ * @res_chg : [out] resolution change happen
+ */
+ int (*decode)(unsigned long h_vdec, struct mtk_vcodec_mem *bs,
+ struct vdec_fb *fb, bool *res_chg);
+
+ /**
+ * (*get_param)() - get driver's parameter
+ * @h_vdec : [in] driver handle
+ * @type : [in] input parameter type
+ * @out : [out] buffer to store query result
+ */
+ int (*get_param)(unsigned long h_vdec, enum vdec_get_param_type type,
+ void *out);
+
+ /**
+ * (*deinit)() - deinitialize driver.
+ * @h_vdec : [in] driver handle to be deinit
+ */
+ void (*deinit)(unsigned long h_vdec);
+};
+
+#endif
diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
new file mode 100644
index 0000000..3cb04ef
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
@@ -0,0 +1,112 @@
+/*
+ * 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/kernel.h>
+#include <linux/slab.h>
+
+#include "vdec_drv_if.h"
+#include "mtk_vcodec_dec.h"
+#include "vdec_drv_base.h"
+#include "mtk_vcodec_dec_pm.h"
+#include "mtk_vpu.h"
+
+
+int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
+{
+ int ret = 0;
+
+ switch (fourcc) {
+ case V4L2_PIX_FMT_H264:
+ case V4L2_PIX_FMT_VP8:
+ default:
+ return -EINVAL;
+ }
+
+ mtk_vdec_lock(ctx);
+ mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+ ret = ctx->dec_if->init(ctx, &ctx->drv_handle);
+ mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+ mtk_vdec_unlock(ctx);
+
+ return ret;
+}
+
+int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
+ struct vdec_fb *fb, bool *res_chg)
+{
+ int ret = 0;
+
+ if (bs) {
+ if ((bs->dma_addr & 63) != 0) {
+ mtk_v4l2_err("bs dma_addr should 64 byte align");
+ return -EINVAL;
+ }
+ }
+
+ if (fb) {
+ if (((fb->base_y.dma_addr & 511) != 0) ||
+ ((fb->base_c.dma_addr & 511) != 0)) {
+ mtk_v4l2_err("frame buffer dma_addr should 512 byte align");
+ return -EINVAL;
+ }
+ }
+
+ if (ctx->drv_handle == 0)
+ return -EIO;
+
+ mtk_vdec_lock(ctx);
+
+ mtk_vcodec_set_curr_ctx(ctx->dev, ctx);
+ mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+ enable_irq(ctx->dev->dec_irq);
+ ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
+ disable_irq(ctx->dev->dec_irq);
+ mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+ mtk_vcodec_set_curr_ctx(ctx->dev, NULL);
+
+ mtk_vdec_unlock(ctx);
+
+ return ret;
+}
+
+int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type,
+ void *out)
+{
+ int ret = 0;
+
+ if (ctx->drv_handle == 0)
+ return -EIO;
+
+ mtk_vdec_lock(ctx);
+ ret = ctx->dec_if->get_param(ctx->drv_handle, type, out);
+ mtk_vdec_unlock(ctx);
+
+ return ret;
+}
+
+void vdec_if_deinit(struct mtk_vcodec_ctx *ctx)
+{
+ if (ctx->drv_handle == 0)
+ return;
+
+ mtk_vdec_lock(ctx);
+ mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+ ctx->dec_if->deinit(ctx->drv_handle);
+ mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+ mtk_vdec_unlock(ctx);
+
+ ctx->drv_handle = 0;
+}
diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.h b/drivers/media/platform/mtk-vcodec/vdec_drv_if.h
new file mode 100644
index 0000000..db6b520
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.h
@@ -0,0 +1,101 @@
+/*
+ * 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 _VDEC_DRV_IF_H_
+#define _VDEC_DRV_IF_H_
+
+#include "mtk_vcodec_drv.h"
+#include "mtk_vcodec_dec.h"
+#include "mtk_vcodec_util.h"
+
+
+/**
+ * struct vdec_fb_status - decoder frame buffer status
+ * @FB_ST_NORMAL : initial state
+ * @FB_ST_DISPLAY : frmae buffer is ready to be displayed
+ * @FB_ST_FREE : frame buffer is not used by decoder any more
+ */
+enum vdec_fb_status {
+ FB_ST_NORMAL = 0,
+ FB_ST_DISPLAY = (1 << 0),
+ FB_ST_FREE = (1 << 1)
+};
+
+/* For GET_PARAM_DISP_FRAME_BUFFER and GET_PARAM_FREE_FRAME_BUFFER,
+ * the caller does not own the returned buffer. The buffer will not be
+ * released before vdec_if_deinit.
+ * GET_PARAM_DISP_FRAME_BUFFER : get next displayable frame buffer,
+ * struct vdec_fb**
+ * GET_PARAM_FREE_FRAME_BUFFER : get non-referenced framebuffer, vdec_fb**
+ * GET_PARAM_PIC_INFO : get picture info, struct vdec_pic_info*
+ * GET_PARAM_CROP_INFO : get crop info, struct v4l2_crop*
+ * GET_PARAM_DPB_SIZE : get dpb size, unsigned int*
+ */
+enum vdec_get_param_type {
+ GET_PARAM_DISP_FRAME_BUFFER,
+ GET_PARAM_FREE_FRAME_BUFFER,
+ GET_PARAM_PIC_INFO,
+ GET_PARAM_CROP_INFO,
+ GET_PARAM_DPB_SIZE
+};
+
+/**
+ * struct vdec_fb_node - decoder frame buffer node
+ * @list : list to hold this node
+ * @fb : point to frame buffer (vdec_fb), fb could point to frame buffer and
+ * working buffer this is for maintain buffers in different state
+ */
+struct vdec_fb_node {
+ struct list_head list;
+ struct vdec_fb *fb;
+};
+
+/**
+ * vdec_if_init() - initialize decode driver
+ * @ctx : [in] v4l2 context
+ * @fourcc : [in] video format fourcc, V4L2_PIX_FMT_H264/VP8/VP9..
+ */
+int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc);
+
+/**
+ * vdec_if_deinit() - deinitialize decode driver
+ * @ctx : [in] v4l2 context
+ *
+ */
+void vdec_if_deinit(struct mtk_vcodec_ctx *ctx);
+
+/**
+ * vdec_if_decode() - trigger decode
+ * @ctx : [in] v4l2 context
+ * @bs : [in] input bitstream
+ * @fb : [in] frame buffer to store decoded frame, when null menas parse
+ * header only
+ * @res_chg : [out] resolution change happens if current bs have different
+ * picture width/height
+ * Note: To flush the decoder when reaching EOF, set input bitstream as NULL.
+ */
+int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
+ struct vdec_fb *fb, bool *res_chg);
+
+/**
+ * vdec_if_get_param() - get driver's parameter
+ * @ctx : [in] v4l2 context
+ * @type : [in] input parameter type
+ * @out : [out] buffer to store query result
+ */
+int vdec_if_get_param(struct mtk_vcodec_ctx *ctx, enum vdec_get_param_type type,
+ void *out);
+
+#endif
diff --git a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
new file mode 100644
index 0000000..5a8a629
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PC Chen <pc.chen@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 _VDEC_IPI_MSG_H_
+#define _VDEC_IPI_MSG_H_
+
+/**
+ * enum vdec_ipi_msgid - message id between AP and VPU
+ * @AP_IPIMSG_XXX : AP to VPU cmd message id
+ * @VPU_IPIMSG_XXX_ACK : VPU ack AP cmd message id
+ */
+enum vdec_ipi_msgid {
+ AP_IPIMSG_DEC_INIT = 0xA000,
+ AP_IPIMSG_DEC_START = 0xA001,
+ AP_IPIMSG_DEC_END = 0xA002,
+ AP_IPIMSG_DEC_DEINIT = 0xA003,
+ AP_IPIMSG_DEC_RESET = 0xA004,
+
+ VPU_IPIMSG_DEC_INIT_ACK = 0xB000,
+ VPU_IPIMSG_DEC_START_ACK = 0xB001,
+ VPU_IPIMSG_DEC_END_ACK = 0xB002,
+ VPU_IPIMSG_DEC_DEINIT_ACK = 0xB003,
+ VPU_IPIMSG_DEC_RESET_ACK = 0xB004,
+};
+
+/**
+ * struct vdec_ap_ipi_cmd - generic AP to VPU ipi command format
+ * @msg_id : vdec_ipi_msgid
+ * @vpu_inst_addr : VPU decoder instance address
+ */
+struct vdec_ap_ipi_cmd {
+ uint32_t msg_id;
+ uint32_t vpu_inst_addr;
+};
+
+/**
+ * struct vdec_vpu_ipi_ack - generic VPU to AP ipi command format
+ * @msg_id : vdec_ipi_msgid
+ * @status : VPU exeuction result
+ * @ap_inst_addr : AP video decoder instance address
+ */
+struct vdec_vpu_ipi_ack {
+ uint32_t msg_id;
+ int32_t status;
+ uint64_t ap_inst_addr;
+};
+
+/**
+ * struct vdec_ap_ipi_init - for AP_IPIMSG_DEC_INIT
+ * @msg_id : AP_IPIMSG_DEC_INIT
+ * @reserved : Reserved field
+ * @ap_inst_addr : AP video decoder instance address
+ */
+struct vdec_ap_ipi_init {
+ uint32_t msg_id;
+ uint32_t reserved;
+ uint64_t ap_inst_addr;
+};
+
+/**
+ * struct vdec_ap_ipi_dec_start - for AP_IPIMSG_DEC_START
+ * @msg_id : AP_IPIMSG_DEC_START
+ * @vpu_inst_addr : VPU decoder instance address
+ * @data : Header info
+ * H264 decoder [0]:buf_sz [1]:nal_start
+ * VP8 decoder [0]:width/height
+ * VP9 decoder [0]:profile, [1][2] width/height
+ * @reserved : Reserved field
+ */
+struct vdec_ap_ipi_dec_start {
+ uint32_t msg_id;
+ uint32_t vpu_inst_addr;
+ uint32_t data[3];
+ uint32_t reserved;
+};
+
+/**
+ * struct vdec_vpu_ipi_init_ack - for VPU_IPIMSG_DEC_INIT_ACK
+ * @msg_id : VPU_IPIMSG_DEC_INIT_ACK
+ * @status : VPU exeuction result
+ * @ap_inst_addr : AP vcodec_vpu_inst instance address
+ * @vpu_inst_addr : VPU decoder instance address
+ */
+struct vdec_vpu_ipi_init_ack {
+ uint32_t msg_id;
+ int32_t status;
+ uint64_t ap_inst_addr;
+ uint32_t vpu_inst_addr;
+};
+
+#endif
diff --git a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
new file mode 100644
index 0000000..0798a6b
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PC Chen <pc.chen@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 "mtk_vcodec_drv.h"
+#include "mtk_vcodec_util.h"
+#include "vdec_ipi_msg.h"
+#include "vdec_vpu_if.h"
+
+static void handle_init_ack_msg(struct vdec_vpu_ipi_init_ack *msg)
+{
+ struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)msg->ap_inst_addr;
+
+ mtk_vcodec_debug(vpu, "+ ap_inst_addr = 0x%llx", msg->ap_inst_addr);
+
+ /* mapping VPU address to kernel virtual address */
+ /* the content in vsi is initialized to 0 in VPU */
+ vpu->vsi = vpu_mapping_dm_addr(vpu->dev, msg->vpu_inst_addr);
+ vpu->inst_addr = msg->vpu_inst_addr;
+
+ mtk_vcodec_debug(vpu, "- vpu_inst_addr = 0x%x", vpu->inst_addr);
+}
+
+/*
+ * This function runs in interrupt context and it means there's an IPI MSG
+ * from VPU.
+ */
+void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
+{
+ struct vdec_vpu_ipi_ack *msg = data;
+ struct vdec_vpu_inst *vpu = (struct vdec_vpu_inst *)msg->ap_inst_addr;
+
+ mtk_vcodec_debug(vpu, "+ id=%X", msg->msg_id);
+
+ if (msg->status == 0) {
+ switch (msg->msg_id) {
+ case VPU_IPIMSG_DEC_INIT_ACK:
+ handle_init_ack_msg(data);
+ break;
+
+ case VPU_IPIMSG_DEC_START_ACK:
+ case VPU_IPIMSG_DEC_END_ACK:
+ case VPU_IPIMSG_DEC_DEINIT_ACK:
+ case VPU_IPIMSG_DEC_RESET_ACK:
+ break;
+
+ default:
+ mtk_vcodec_err(vpu, "invalid msg=%X", msg->msg_id);
+ break;
+ }
+ }
+
+ mtk_vcodec_debug(vpu, "- id=%X", msg->msg_id);
+ vpu->failure = msg->status;
+ vpu->signaled = 1;
+}
+
+static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len)
+{
+ int err;
+ uint32_t msg_id = *(uint32_t *)msg;
+
+ mtk_vcodec_debug(vpu, "id=%X", msg_id);
+
+ vpu->failure = 0;
+ vpu->signaled = 0;
+
+ err = vpu_ipi_send(vpu->dev, vpu->id, msg, len);
+ if (err) {
+ mtk_vcodec_err(vpu, "send fail vpu_id=%d msg_id=%X status=%d",
+ vpu->id, msg_id, err);
+ return err;
+ }
+
+ return vpu->failure;
+}
+
+static int vcodec_send_ap_ipi(struct vdec_vpu_inst *vpu, unsigned int msg_id)
+{
+ struct vdec_ap_ipi_cmd msg;
+ int err = 0;
+
+ mtk_vcodec_debug(vpu, "+ id=%X", msg_id);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_id = msg_id;
+ msg.vpu_inst_addr = vpu->inst_addr;
+
+ err = vcodec_vpu_send_msg(vpu, &msg, sizeof(msg));
+ mtk_vcodec_debug(vpu, "- id=%X ret=%d", msg_id, err);
+ return err;
+}
+
+int vpu_dec_init(struct vdec_vpu_inst *vpu)
+{
+ struct vdec_ap_ipi_init msg;
+ int err;
+
+ mtk_vcodec_debug_enter(vpu);
+
+ init_waitqueue_head(&vpu->wq);
+
+ err = vpu_ipi_register(vpu->dev, vpu->id, vpu->handler, "vdec", NULL);
+ if (err != 0) {
+ mtk_vcodec_err(vpu, "vpu_ipi_register fail status=%d", err);
+ return err;
+ }
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_id = AP_IPIMSG_DEC_INIT;
+ msg.ap_inst_addr = (unsigned long)vpu;
+
+ mtk_vcodec_debug(vpu, "vdec_inst=%p", vpu);
+
+ err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
+ mtk_vcodec_debug(vpu, "- ret=%d", err);
+ return err;
+}
+
+int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len)
+{
+ struct vdec_ap_ipi_dec_start msg;
+ int i;
+ int err = 0;
+
+ mtk_vcodec_debug_enter(vpu);
+
+ if (len > ARRAY_SIZE(msg.data)) {
+ mtk_vcodec_err(vpu, "invalid len = %d\n", len);
+ return -EINVAL;
+ }
+
+ memset(&msg, 0, sizeof(msg));
+ msg.msg_id = AP_IPIMSG_DEC_START;
+ msg.vpu_inst_addr = vpu->inst_addr;
+
+ for (i = 0; i < len; i++)
+ msg.data[i] = data[i];
+
+ err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
+ mtk_vcodec_debug(vpu, "- ret=%d", err);
+ return err;
+}
+
+int vpu_dec_end(struct vdec_vpu_inst *vpu)
+{
+ return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_END);
+}
+
+int vpu_dec_deinit(struct vdec_vpu_inst *vpu)
+{
+ return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_DEINIT);
+}
+
+int vpu_dec_reset(struct vdec_vpu_inst *vpu)
+{
+ return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_RESET);
+}
diff --git a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
new file mode 100644
index 0000000..8dcc1cb
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2016 MediaTek Inc.
+ * Author: PC Chen <pc.chen@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 _VDEC_VPU_IF_H_
+#define _VDEC_VPU_IF_H_
+
+#include "mtk_vpu.h"
+
+/**
+ * struct vdec_vpu_inst - VPU instance for video codec
+ * @ipi_id : ipi id for each decoder
+ * @vsi : driver structure allocated by VPU side and shared to AP side
+ * for control and info share
+ * @failure : VPU execution result status, 0: success, others: fail
+ * @inst_addr : VPU decoder instance address
+ * @signaled : 1 - Host has received ack message from VPU, 0 - not received
+ * @ctx : context for v4l2 layer integration
+ * @dev : platform device of VPU
+ * @wq : wait queue to wait VPU message ack
+ * @handler : ipi handler for each decoder
+ */
+struct vdec_vpu_inst {
+ enum ipi_id id;
+ void *vsi;
+ int32_t failure;
+ uint32_t inst_addr;
+ unsigned int signaled;
+ struct mtk_vcodec_ctx *ctx;
+ struct platform_device *dev;
+ wait_queue_head_t wq;
+ ipi_handler_t handler;
+};
+
+/**
+ * vpu_dec_init - init decoder instance and allocate required resource in VPU.
+ *
+ * @vpu: instance for vdec_vpu_inst
+ */
+int vpu_dec_init(struct vdec_vpu_inst *vpu);
+
+/**
+ * vpu_dec_start - start decoding, basically the function will be invoked once
+ * every frame.
+ *
+ * @vpu : instance for vdec_vpu_inst
+ * @data: meta data to pass bitstream info to VPU decoder
+ * @len : meta data length
+ */
+int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len);
+
+/**
+ * vpu_dec_end - end decoding, basically the function will be invoked once
+ * when HW decoding done interrupt received successfully. The
+ * decoder in VPU will continute to do referene frame management
+ * and check if there is a new decoded frame available to display.
+ *
+ * @vpu : instance for vdec_vpu_inst
+ */
+int vpu_dec_end(struct vdec_vpu_inst *vpu);
+
+/**
+ * vpu_dec_deinit - deinit decoder instance and resource freed in VPU.
+ *
+ * @vpu: instance for vdec_vpu_inst
+ */
+int vpu_dec_deinit(struct vdec_vpu_inst *vpu);
+
+/**
+ * vpu_dec_reset - reset decoder, use for flush decoder when end of stream or
+ * seek. Remainig non displayed frame will be pushed to display.
+ *
+ * @vpu: instance for vdec_vpu_inst
+ */
+int vpu_dec_reset(struct vdec_vpu_inst *vpu);
+
+/**
+ * vpu_dec_ipi_handler - Handler for VPU ipi message.
+ *
+ * @data: ipi message
+ * @len : length of ipi message
+ * @priv: callback private data whcih is passed by decoder when register.
+ */
+void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv);
+
+#endif
--
1.7.9.5

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