media: amphion: add v4l2 m2m vpu encoder stateful driver
authorMing Qian <ming.qian@nxp.com>
Thu, 24 Feb 2022 03:10:05 +0000 (11:10 +0800)
committerHans Verkuil <hverkuil-cisco@xs4all.nl>
Mon, 7 Mar 2022 16:13:33 +0000 (17:13 +0100)
This consists of video encoder implementation plus encoder controls.

Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Shijie Qin <shijie.qin@nxp.com>
Signed-off-by: Zhou Peng <eagle.zhou@nxp.com>
Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
drivers/media/platform/amphion/venc.c [new file with mode: 0644]

diff --git a/drivers/media/platform/amphion/venc.c b/drivers/media/platform/amphion/venc.c
new file mode 100644 (file)
index 0000000..d33c274
--- /dev/null
@@ -0,0 +1,1358 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020-2021 NXP
+ */
+
+#include <linux/init.h>
+#include <linux/interconnect.h>
+#include <linux/ioctl.h>
+#include <linux/list.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include <linux/ktime.h>
+#include <linux/rational.h>
+#include <linux/vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+#include <media/videobuf2-vmalloc.h>
+#include "vpu.h"
+#include "vpu_defs.h"
+#include "vpu_core.h"
+#include "vpu_helpers.h"
+#include "vpu_v4l2.h"
+#include "vpu_cmds.h"
+#include "vpu_rpc.h"
+
+#define VENC_OUTPUT_ENABLE     BIT(0)
+#define VENC_CAPTURE_ENABLE    BIT(1)
+#define VENC_ENABLE_MASK       (VENC_OUTPUT_ENABLE | VENC_CAPTURE_ENABLE)
+#define VENC_MAX_BUF_CNT       8
+
+struct venc_t {
+       struct vpu_encode_params params;
+       u32 request_key_frame;
+       u32 input_ready;
+       u32 cpb_size;
+       bool bitrate_change;
+
+       struct vpu_buffer enc[VENC_MAX_BUF_CNT];
+       struct vpu_buffer ref[VENC_MAX_BUF_CNT];
+       struct vpu_buffer act[VENC_MAX_BUF_CNT];
+       struct list_head frames;
+       u32 frame_count;
+       u32 encode_count;
+       u32 ready_count;
+       u32 enable;
+       u32 stopped;
+
+       u32 skipped_count;
+       u32 skipped_bytes;
+
+       wait_queue_head_t wq;
+};
+
+struct venc_frame_t {
+       struct list_head list;
+       struct vpu_enc_pic_info info;
+       u32 bytesused;
+       s64 timestamp;
+};
+
+static const struct vpu_format venc_formats[] = {
+       {
+               .pixfmt = V4L2_PIX_FMT_NV12M,
+               .num_planes = 2,
+               .type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+       },
+       {
+               .pixfmt = V4L2_PIX_FMT_H264,
+               .num_planes = 1,
+               .type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
+       },
+       {0, 0, 0, 0},
+};
+
+static int venc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
+{
+       strscpy(cap->driver, "amphion-vpu", sizeof(cap->driver));
+       strscpy(cap->card, "amphion vpu encoder", sizeof(cap->card));
+       strscpy(cap->bus_info, "platform: amphion-vpu", sizeof(cap->bus_info));
+
+       return 0;
+}
+
+static int venc_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+       struct vpu_inst *inst = to_inst(file);
+       const struct vpu_format *fmt;
+
+       memset(f->reserved, 0, sizeof(f->reserved));
+       fmt = vpu_helper_enum_format(inst, f->type, f->index);
+       if (!fmt)
+               return -EINVAL;
+
+       f->pixelformat = fmt->pixfmt;
+       f->flags = fmt->flags;
+
+       return 0;
+}
+
+static int venc_enum_framesizes(struct file *file, void *fh, struct v4l2_frmsizeenum *fsize)
+{
+       struct vpu_inst *inst = to_inst(file);
+       const struct vpu_core_resources *res;
+
+       if (!fsize || fsize->index)
+               return -EINVAL;
+
+       if (!vpu_helper_find_format(inst, 0, fsize->pixel_format))
+               return -EINVAL;
+
+       res = vpu_get_resource(inst);
+       if (!res)
+               return -EINVAL;
+       fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+       fsize->stepwise.max_width = res->max_width;
+       fsize->stepwise.max_height = res->max_height;
+       fsize->stepwise.min_width = res->min_width;
+       fsize->stepwise.min_height = res->min_height;
+       fsize->stepwise.step_width = res->step_width;
+       fsize->stepwise.step_height = res->step_height;
+
+       return 0;
+}
+
+static int venc_enum_frameintervals(struct file *file, void *fh, struct v4l2_frmivalenum *fival)
+{
+       struct vpu_inst *inst = to_inst(file);
+       const struct vpu_core_resources *res;
+
+       if (!fival || fival->index)
+               return -EINVAL;
+
+       if (!vpu_helper_find_format(inst, 0, fival->pixel_format))
+               return -EINVAL;
+
+       if (!fival->width || !fival->height)
+               return -EINVAL;
+
+       res = vpu_get_resource(inst);
+       if (!res)
+               return -EINVAL;
+       if (fival->width < res->min_width || fival->width > res->max_width ||
+           fival->height < res->min_height || fival->height > res->max_height)
+               return -EINVAL;
+
+       fival->type = V4L2_FRMIVAL_TYPE_CONTINUOUS;
+       fival->stepwise.min.numerator = 1;
+       fival->stepwise.min.denominator = USHRT_MAX;
+       fival->stepwise.max.numerator = USHRT_MAX;
+       fival->stepwise.max.denominator = 1;
+       fival->stepwise.step.numerator = 1;
+       fival->stepwise.step.denominator = 1;
+
+       return 0;
+}
+
+static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+       struct vpu_inst *inst = to_inst(file);
+       struct venc_t *venc = inst->priv;
+       struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
+       struct vpu_format *cur_fmt;
+       int i;
+
+       cur_fmt = vpu_get_format(inst, f->type);
+
+       pixmp->pixelformat = cur_fmt->pixfmt;
+       pixmp->num_planes = cur_fmt->num_planes;
+       pixmp->width = cur_fmt->width;
+       pixmp->height = cur_fmt->height;
+       pixmp->field = cur_fmt->field;
+       pixmp->flags = cur_fmt->flags;
+       for (i = 0; i < pixmp->num_planes; i++) {
+               pixmp->plane_fmt[i].bytesperline = cur_fmt->bytesperline[i];
+               pixmp->plane_fmt[i].sizeimage = cur_fmt->sizeimage[i];
+       }
+
+       f->fmt.pix_mp.colorspace = venc->params.color.primaries;
+       f->fmt.pix_mp.xfer_func = venc->params.color.transfer;
+       f->fmt.pix_mp.ycbcr_enc = venc->params.color.matrix;
+       f->fmt.pix_mp.quantization = venc->params.color.full_range;
+
+       return 0;
+}
+
+static int venc_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+       struct vpu_inst *inst = to_inst(file);
+
+       vpu_try_fmt_common(inst, f);
+
+       return 0;
+}
+
+static int venc_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+       struct vpu_inst *inst = to_inst(file);
+       const struct vpu_format *fmt;
+       struct vpu_format *cur_fmt;
+       struct vb2_queue *q;
+       struct venc_t *venc = inst->priv;
+       struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
+       int i;
+
+       q = v4l2_m2m_get_vq(inst->fh.m2m_ctx, f->type);
+       if (!q)
+               return -EINVAL;
+       if (vb2_is_busy(q))
+               return -EBUSY;
+
+       fmt = vpu_try_fmt_common(inst, f);
+       if (!fmt)
+               return -EINVAL;
+
+       cur_fmt = vpu_get_format(inst, f->type);
+
+       cur_fmt->pixfmt = fmt->pixfmt;
+       cur_fmt->num_planes = fmt->num_planes;
+       cur_fmt->flags = fmt->flags;
+       cur_fmt->width = pix_mp->width;
+       cur_fmt->height = pix_mp->height;
+       for (i = 0; i < fmt->num_planes; i++) {
+               cur_fmt->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage;
+               cur_fmt->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline;
+       }
+
+       if (pix_mp->field != V4L2_FIELD_ANY)
+               cur_fmt->field = pix_mp->field;
+
+       if (V4L2_TYPE_IS_OUTPUT(f->type)) {
+               venc->params.input_format = cur_fmt->pixfmt;
+               venc->params.src_stride = cur_fmt->bytesperline[0];
+               venc->params.src_width = cur_fmt->width;
+               venc->params.src_height = cur_fmt->height;
+               venc->params.crop.left = 0;
+               venc->params.crop.top = 0;
+               venc->params.crop.width = cur_fmt->width;
+               venc->params.crop.height = cur_fmt->height;
+       } else {
+               venc->params.codec_format = cur_fmt->pixfmt;
+               venc->params.out_width = cur_fmt->width;
+               venc->params.out_height = cur_fmt->height;
+       }
+
+       if (V4L2_TYPE_IS_OUTPUT(f->type)) {
+               if (!vpu_color_check_primaries(pix_mp->colorspace)) {
+                       venc->params.color.primaries = pix_mp->colorspace;
+                       vpu_color_get_default(venc->params.color.primaries,
+                                             &venc->params.color.transfer,
+                                             &venc->params.color.matrix,
+                                             &venc->params.color.full_range);
+               }
+               if (!vpu_color_check_transfers(pix_mp->xfer_func))
+                       venc->params.color.transfer = pix_mp->xfer_func;
+               if (!vpu_color_check_matrix(pix_mp->ycbcr_enc))
+                       venc->params.color.matrix = pix_mp->ycbcr_enc;
+               if (!vpu_color_check_full_range(pix_mp->quantization))
+                       venc->params.color.full_range = pix_mp->quantization;
+       }
+
+       pix_mp->colorspace = venc->params.color.primaries;
+       pix_mp->xfer_func = venc->params.color.transfer;
+       pix_mp->ycbcr_enc = venc->params.color.matrix;
+       pix_mp->quantization = venc->params.color.full_range;
+
+       return 0;
+}
+
+static int venc_g_parm(struct file *file, void *fh, struct v4l2_streamparm *parm)
+{
+       struct vpu_inst *inst = to_inst(file);
+       struct venc_t *venc = inst->priv;
+       struct v4l2_fract *timeperframe = &parm->parm.capture.timeperframe;
+
+       if (!parm)
+               return -EINVAL;
+
+       if (!vpu_helper_check_type(inst, parm->type))
+               return -EINVAL;
+
+       parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
+       parm->parm.capture.readbuffers = 0;
+       timeperframe->numerator = venc->params.frame_rate.numerator;
+       timeperframe->denominator = venc->params.frame_rate.denominator;
+
+       return 0;
+}
+
+static int venc_s_parm(struct file *file, void *fh, struct v4l2_streamparm *parm)
+{
+       struct vpu_inst *inst = to_inst(file);
+       struct venc_t *venc = inst->priv;
+       struct v4l2_fract *timeperframe = &parm->parm.capture.timeperframe;
+       unsigned long n, d;
+
+       if (!parm)
+               return -EINVAL;
+
+       if (!vpu_helper_check_type(inst, parm->type))
+               return -EINVAL;
+
+       if (!timeperframe->numerator)
+               timeperframe->numerator = venc->params.frame_rate.numerator;
+       if (!timeperframe->denominator)
+               timeperframe->denominator = venc->params.frame_rate.denominator;
+
+       venc->params.frame_rate.numerator = timeperframe->numerator;
+       venc->params.frame_rate.denominator = timeperframe->denominator;
+
+       rational_best_approximation(venc->params.frame_rate.numerator,
+                                   venc->params.frame_rate.denominator,
+                                   venc->params.frame_rate.numerator,
+                                   venc->params.frame_rate.denominator,
+                                   &n, &d);
+       venc->params.frame_rate.numerator = n;
+       venc->params.frame_rate.denominator = d;
+
+       parm->parm.capture.capability = V4L2_CAP_TIMEPERFRAME;
+       memset(parm->parm.capture.reserved, 0, sizeof(parm->parm.capture.reserved));
+
+       return 0;
+}
+
+static int venc_g_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+       struct vpu_inst *inst = to_inst(file);
+       struct venc_t *venc = inst->priv;
+
+       if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+               return -EINVAL;
+
+       switch (s->target) {
+       case V4L2_SEL_TGT_CROP_DEFAULT:
+       case V4L2_SEL_TGT_CROP_BOUNDS:
+               s->r.left = 0;
+               s->r.top = 0;
+               s->r.width = inst->out_format.width;
+               s->r.height = inst->out_format.height;
+               break;
+       case V4L2_SEL_TGT_CROP:
+               s->r = venc->params.crop;
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+static int venc_valid_crop(struct venc_t *venc, const struct vpu_core_resources *res)
+{
+       struct v4l2_rect *rect = NULL;
+       u32 min_width;
+       u32 min_height;
+       u32 src_width;
+       u32 src_height;
+
+       rect = &venc->params.crop;
+       min_width = res->min_width;
+       min_height = res->min_height;
+       src_width = venc->params.src_width;
+       src_height = venc->params.src_height;
+
+       if (rect->width == 0 || rect->height == 0)
+               return -EINVAL;
+       if (rect->left > src_width - min_width || rect->top > src_height - min_height)
+               return -EINVAL;
+
+       rect->width = min(rect->width, src_width - rect->left);
+       rect->width = max_t(u32, rect->width, min_width);
+
+       rect->height = min(rect->height, src_height - rect->top);
+       rect->height = max_t(u32, rect->height, min_height);
+
+       return 0;
+}
+
+static int venc_s_selection(struct file *file, void *fh, struct v4l2_selection *s)
+{
+       struct vpu_inst *inst = to_inst(file);
+       const struct vpu_core_resources *res;
+       struct venc_t *venc = inst->priv;
+
+       res = vpu_get_resource(inst);
+       if (!res)
+               return -EINVAL;
+
+       if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT && s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+               return -EINVAL;
+       if (s->target != V4L2_SEL_TGT_CROP)
+               return -EINVAL;
+
+       venc->params.crop.left = ALIGN(s->r.left, res->step_width);
+       venc->params.crop.top = ALIGN(s->r.top, res->step_height);
+       venc->params.crop.width = ALIGN(s->r.width, res->step_width);
+       venc->params.crop.height = ALIGN(s->r.height, res->step_height);
+       if (venc_valid_crop(venc, res)) {
+               venc->params.crop.left = 0;
+               venc->params.crop.top = 0;
+               venc->params.crop.width = venc->params.src_width;
+               venc->params.crop.height = venc->params.src_height;
+       }
+
+       inst->crop = venc->params.crop;
+
+       return 0;
+}
+
+static int venc_drain(struct vpu_inst *inst)
+{
+       struct venc_t *venc = inst->priv;
+       int ret;
+
+       if (!inst->fh.m2m_ctx)
+               return 0;
+
+       if (inst->state != VPU_CODEC_STATE_DRAIN)
+               return 0;
+
+       if (v4l2_m2m_num_src_bufs_ready(inst->fh.m2m_ctx))
+               return 0;
+
+       if (!venc->input_ready)
+               return 0;
+
+       venc->input_ready = false;
+       vpu_trace(inst->dev, "[%d]\n", inst->id);
+       ret = vpu_session_stop(inst);
+       if (ret)
+               return ret;
+       inst->state = VPU_CODEC_STATE_STOP;
+       wake_up_all(&venc->wq);
+
+       return 0;
+}
+
+static int venc_request_eos(struct vpu_inst *inst)
+{
+       inst->state = VPU_CODEC_STATE_DRAIN;
+       venc_drain(inst);
+
+       return 0;
+}
+
+static int venc_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *cmd)
+{
+       struct vpu_inst *inst = to_inst(file);
+       int ret;
+
+       ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, cmd);
+       if (ret)
+               return ret;
+
+       vpu_inst_lock(inst);
+       if (cmd->cmd == V4L2_ENC_CMD_STOP) {
+               if (inst->state == VPU_CODEC_STATE_DEINIT)
+                       vpu_set_last_buffer_dequeued(inst);
+               else
+                       venc_request_eos(inst);
+       }
+       vpu_inst_unlock(inst);
+
+       return 0;
+}
+
+static int venc_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub)
+{
+       switch (sub->type) {
+       case V4L2_EVENT_EOS:
+               return v4l2_event_subscribe(fh, sub, 0, NULL);
+       case V4L2_EVENT_CTRL:
+               return v4l2_ctrl_subscribe_event(fh, sub);
+       default:
+               return -EINVAL;
+       }
+}
+
+static const struct v4l2_ioctl_ops venc_ioctl_ops = {
+       .vidioc_querycap               = venc_querycap,
+       .vidioc_enum_fmt_vid_cap       = venc_enum_fmt,
+       .vidioc_enum_fmt_vid_out       = venc_enum_fmt,
+       .vidioc_enum_framesizes        = venc_enum_framesizes,
+       .vidioc_enum_frameintervals    = venc_enum_frameintervals,
+       .vidioc_g_fmt_vid_cap_mplane   = venc_g_fmt,
+       .vidioc_g_fmt_vid_out_mplane   = venc_g_fmt,
+       .vidioc_try_fmt_vid_cap_mplane = venc_try_fmt,
+       .vidioc_try_fmt_vid_out_mplane = venc_try_fmt,
+       .vidioc_s_fmt_vid_cap_mplane   = venc_s_fmt,
+       .vidioc_s_fmt_vid_out_mplane   = venc_s_fmt,
+       .vidioc_g_parm                 = venc_g_parm,
+       .vidioc_s_parm                 = venc_s_parm,
+       .vidioc_g_selection            = venc_g_selection,
+       .vidioc_s_selection            = venc_s_selection,
+       .vidioc_try_encoder_cmd        = v4l2_m2m_ioctl_try_encoder_cmd,
+       .vidioc_encoder_cmd            = venc_encoder_cmd,
+       .vidioc_subscribe_event        = venc_subscribe_event,
+       .vidioc_unsubscribe_event      = v4l2_event_unsubscribe,
+       .vidioc_reqbufs                = v4l2_m2m_ioctl_reqbufs,
+       .vidioc_querybuf               = v4l2_m2m_ioctl_querybuf,
+       .vidioc_create_bufs            = v4l2_m2m_ioctl_create_bufs,
+       .vidioc_prepare_buf            = v4l2_m2m_ioctl_prepare_buf,
+       .vidioc_qbuf                   = v4l2_m2m_ioctl_qbuf,
+       .vidioc_expbuf                 = v4l2_m2m_ioctl_expbuf,
+       .vidioc_dqbuf                  = v4l2_m2m_ioctl_dqbuf,
+       .vidioc_streamon               = v4l2_m2m_ioctl_streamon,
+       .vidioc_streamoff              = v4l2_m2m_ioctl_streamoff,
+};
+
+static int venc_op_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+       struct vpu_inst *inst = ctrl_to_inst(ctrl);
+       struct venc_t *venc = inst->priv;
+       int ret = 0;
+
+       vpu_inst_lock(inst);
+       switch (ctrl->id) {
+       case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+               venc->params.profile = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+               venc->params.level = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
+               venc->params.rc_enable = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
+               venc->params.rc_mode = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE:
+               if (ctrl->val != venc->params.bitrate)
+                       venc->bitrate_change = true;
+               venc->params.bitrate = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+               venc->params.bitrate_max = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+               venc->params.gop_length = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_B_FRAMES:
+               venc->params.bframes = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP:
+               venc->params.i_frame_qp = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP:
+               venc->params.p_frame_qp = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP:
+               venc->params.b_frame_qp = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
+               venc->request_key_frame = 1;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE:
+               venc->cpb_size = ctrl->val * 1024;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE:
+               venc->params.sar.enable = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC:
+               venc->params.sar.idc = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH:
+               venc->params.sar.width = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT:
+               venc->params.sar.height = ctrl->val;
+               break;
+       case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
+               break;
+       default:
+               ret = -EINVAL;
+               break;
+       }
+       vpu_inst_unlock(inst);
+
+       return ret;
+}
+
+static const struct v4l2_ctrl_ops venc_ctrl_ops = {
+       .s_ctrl = venc_op_s_ctrl,
+       .g_volatile_ctrl = vpu_helper_g_volatile_ctrl,
+};
+
+static int venc_ctrl_init(struct vpu_inst *inst)
+{
+       struct v4l2_ctrl *ctrl;
+       int ret;
+
+       ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, 20);
+       if (ret)
+               return ret;
+
+       v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
+                              V4L2_CID_MPEG_VIDEO_H264_PROFILE,
+                              V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
+                              ~((1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
+                                (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
+                                (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)),
+                              V4L2_MPEG_VIDEO_H264_PROFILE_HIGH);
+
+       v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
+                              V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+                              V4L2_MPEG_VIDEO_H264_LEVEL_5_1,
+                              0x0,
+                              V4L2_MPEG_VIDEO_H264_LEVEL_4_0);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE, 0, 1, 1, 1);
+
+       v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
+                              V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
+                              V4L2_MPEG_VIDEO_BITRATE_MODE_CBR,
+                              ~((1 << V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) |
+                                (1 << V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)),
+                              V4L2_MPEG_VIDEO_BITRATE_MODE_CBR);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_BITRATE,
+                         BITRATE_MIN,
+                         BITRATE_MAX,
+                         BITRATE_STEP,
+                         BITRATE_DEFAULT);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
+                         BITRATE_MIN, BITRATE_MAX,
+                         BITRATE_STEP,
+                         BITRATE_DEFAULT_PEAK);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_GOP_SIZE, 0, (1 << 16) - 1, 1, 30);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_B_FRAMES, 0, 4, 1, 0);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 26);
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 28);
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP, 1, 51, 1, 30);
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME, 0, 0, 0, 0);
+       ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                                V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 1, 32, 1, 2);
+       if (ctrl)
+               ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+       ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                                V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 32, 1, 2);
+       if (ctrl)
+               ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE, 64, 10240, 1, 1024);
+
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE, 0, 1, 1, 1);
+       v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
+                              V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC,
+                              V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED,
+                              0x0,
+                              V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1);
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH,
+                         0, USHRT_MAX, 1, 1);
+       v4l2_ctrl_new_std(&inst->ctrl_handler, &venc_ctrl_ops,
+                         V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT,
+                         0, USHRT_MAX, 1, 1);
+       v4l2_ctrl_new_std_menu(&inst->ctrl_handler, &venc_ctrl_ops,
+                              V4L2_CID_MPEG_VIDEO_HEADER_MODE,
+                              V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
+                              ~(1 << V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME),
+                              V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME);
+
+       ret = v4l2_ctrl_handler_setup(&inst->ctrl_handler);
+       if (ret) {
+               dev_err(inst->dev, "[%d] setup ctrls fail, ret = %d\n", inst->id, ret);
+               v4l2_ctrl_handler_free(&inst->ctrl_handler);
+               return ret;
+       }
+
+       return 0;
+}
+
+static bool venc_check_ready(struct vpu_inst *inst, unsigned int type)
+{
+       struct venc_t *venc = inst->priv;
+
+       if (V4L2_TYPE_IS_OUTPUT(type)) {
+               if (vpu_helper_get_free_space(inst) < venc->cpb_size)
+                       return false;
+               return venc->input_ready;
+       }
+
+       if (list_empty(&venc->frames))
+               return false;
+       return true;
+}
+
+static u32 venc_get_enable_mask(u32 type)
+{
+       if (V4L2_TYPE_IS_OUTPUT(type))
+               return VENC_OUTPUT_ENABLE;
+       else
+               return VENC_CAPTURE_ENABLE;
+}
+
+static void venc_set_enable(struct venc_t *venc, u32 type, int enable)
+{
+       u32 mask = venc_get_enable_mask(type);
+
+       if (enable)
+               venc->enable |= mask;
+       else
+               venc->enable &= ~mask;
+}
+
+static u32 venc_get_enable(struct venc_t *venc, u32 type)
+{
+       return venc->enable & venc_get_enable_mask(type);
+}
+
+static void venc_input_done(struct vpu_inst *inst)
+{
+       struct venc_t *venc = inst->priv;
+
+       vpu_inst_lock(inst);
+       venc->input_ready = true;
+       vpu_process_output_buffer(inst);
+       if (inst->state == VPU_CODEC_STATE_DRAIN)
+               venc_drain(inst);
+       vpu_inst_unlock(inst);
+}
+
+/*
+ * It's hardware limitation, that there may be several bytes
+ * redundant data at the beginning of frame.
+ * For android platform, the redundant data may cause cts test fail
+ * So driver will strip them
+ */
+static int venc_precheck_encoded_frame(struct vpu_inst *inst, struct venc_frame_t *frame)
+{
+       struct venc_t *venc;
+       int skipped;
+
+       if (!frame || !frame->bytesused)
+               return -EINVAL;
+
+       venc = inst->priv;
+       skipped = vpu_helper_find_startcode(&inst->stream_buffer,
+                                           inst->cap_format.pixfmt,
+                                           frame->info.wptr - inst->stream_buffer.phys,
+                                           frame->bytesused);
+       if (skipped > 0) {
+               frame->bytesused -= skipped;
+               frame->info.wptr = vpu_helper_step_walk(&inst->stream_buffer,
+                                                       frame->info.wptr, skipped);
+               venc->skipped_bytes += skipped;
+               venc->skipped_count++;
+       }
+
+       return 0;
+}
+
+static int venc_get_one_encoded_frame(struct vpu_inst *inst,
+                                     struct venc_frame_t *frame,
+                                     struct vb2_v4l2_buffer *vbuf)
+{
+       struct venc_t *venc = inst->priv;
+
+       if (!vbuf)
+               return -EAGAIN;
+
+       if (!venc_get_enable(inst->priv, vbuf->vb2_buf.type)) {
+               v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+               return 0;
+       }
+       if (frame->bytesused > vbuf->vb2_buf.planes[0].length) {
+               v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_ERROR);
+               return -ENOMEM;
+       }
+
+       venc_precheck_encoded_frame(inst, frame);
+
+       if (frame->bytesused) {
+               u32 rptr = frame->info.wptr;
+               void *dst = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
+
+               vpu_helper_copy_from_stream_buffer(&inst->stream_buffer,
+                                                  &rptr, frame->bytesused, dst);
+               vpu_iface_update_stream_buffer(inst, rptr, 0);
+       }
+       vb2_set_plane_payload(&vbuf->vb2_buf, 0, frame->bytesused);
+       vbuf->sequence = frame->info.frame_id;
+       vbuf->vb2_buf.timestamp = frame->info.timestamp;
+       vbuf->field = inst->cap_format.field;
+       vbuf->flags |= frame->info.pic_type;
+       vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
+       dev_dbg(inst->dev, "[%d][OUTPUT TS]%32lld\n", inst->id, frame->info.timestamp);
+       v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
+       venc->ready_count++;
+
+       if (vbuf->flags & V4L2_BUF_FLAG_KEYFRAME)
+               dev_dbg(inst->dev, "[%d][%d]key frame\n", inst->id, frame->info.frame_id);
+
+       return 0;
+}
+
+static int venc_get_encoded_frames(struct vpu_inst *inst)
+{
+       struct venc_t *venc;
+       struct venc_frame_t *frame;
+       struct venc_frame_t *tmp;
+
+       if (!inst->fh.m2m_ctx)
+               return 0;
+       venc = inst->priv;
+       list_for_each_entry_safe(frame, tmp, &venc->frames, list) {
+               if (venc_get_one_encoded_frame(inst, frame,
+                                              v4l2_m2m_dst_buf_remove(inst->fh.m2m_ctx)))
+                       break;
+               list_del_init(&frame->list);
+               vfree(frame);
+       }
+
+       return 0;
+}
+
+static int venc_frame_encoded(struct vpu_inst *inst, void *arg)
+{
+       struct vpu_enc_pic_info *info = arg;
+       struct venc_frame_t *frame;
+       struct venc_t *venc;
+       int ret = 0;
+
+       if (!info)
+               return -EINVAL;
+       venc = inst->priv;
+       frame = vzalloc(sizeof(*frame));
+       if (!frame)
+               return -ENOMEM;
+
+       memcpy(&frame->info, info, sizeof(frame->info));
+       frame->bytesused = info->frame_size;
+
+       vpu_inst_lock(inst);
+       list_add_tail(&frame->list, &venc->frames);
+       venc->encode_count++;
+       venc_get_encoded_frames(inst);
+       vpu_inst_unlock(inst);
+
+       return ret;
+}
+
+static void venc_buf_done(struct vpu_inst *inst, struct vpu_frame_info *frame)
+{
+       struct vb2_v4l2_buffer *vbuf;
+
+       if (!inst->fh.m2m_ctx)
+               return;
+
+       vpu_inst_lock(inst);
+       if (!venc_get_enable(inst->priv, frame->type))
+               goto exit;
+       vbuf = vpu_find_buf_by_sequence(inst, frame->type, frame->sequence);
+       if (!vbuf) {
+               dev_err(inst->dev, "[%d] can't find buf: type %d, sequence %d\n",
+                       inst->id, frame->type, frame->sequence);
+               goto exit;
+       }
+
+       vpu_set_buffer_state(vbuf, VPU_BUF_STATE_IDLE);
+       if (V4L2_TYPE_IS_OUTPUT(frame->type))
+               v4l2_m2m_src_buf_remove_by_buf(inst->fh.m2m_ctx, vbuf);
+       else
+               v4l2_m2m_dst_buf_remove_by_buf(inst->fh.m2m_ctx, vbuf);
+       v4l2_m2m_buf_done(vbuf, VB2_BUF_STATE_DONE);
+exit:
+       vpu_inst_unlock(inst);
+}
+
+static void venc_set_last_buffer_dequeued(struct vpu_inst *inst)
+{
+       struct venc_t *venc = inst->priv;
+
+       if (venc->stopped && list_empty(&venc->frames))
+               vpu_set_last_buffer_dequeued(inst);
+}
+
+static void venc_stop_done(struct vpu_inst *inst)
+{
+       struct venc_t *venc = inst->priv;
+
+       vpu_inst_lock(inst);
+       venc->stopped = true;
+       venc_set_last_buffer_dequeued(inst);
+       vpu_inst_unlock(inst);
+
+       wake_up_all(&venc->wq);
+}
+
+static void venc_event_notify(struct vpu_inst *inst, u32 event, void *data)
+{
+}
+
+static void venc_release(struct vpu_inst *inst)
+{
+}
+
+static void venc_cleanup(struct vpu_inst *inst)
+{
+       struct venc_t *venc;
+
+       if (!inst)
+               return;
+
+       venc = inst->priv;
+       if (venc)
+               vfree(venc);
+       inst->priv = NULL;
+       vfree(inst);
+}
+
+static int venc_start_session(struct vpu_inst *inst, u32 type)
+{
+       struct venc_t *venc = inst->priv;
+       int stream_buffer_size;
+       int ret;
+
+       venc_set_enable(venc, type, 1);
+       if ((venc->enable & VENC_ENABLE_MASK) != VENC_ENABLE_MASK)
+               return 0;
+
+       vpu_iface_init_instance(inst);
+       stream_buffer_size = vpu_iface_get_stream_buffer_size(inst->core);
+       if (stream_buffer_size > 0) {
+               inst->stream_buffer.length = max_t(u32, stream_buffer_size, venc->cpb_size * 3);
+               ret = vpu_alloc_dma(inst->core, &inst->stream_buffer);
+               if (ret)
+                       goto error;
+
+               inst->use_stream_buffer = true;
+               vpu_iface_config_stream_buffer(inst, &inst->stream_buffer);
+       }
+
+       ret = vpu_iface_set_encode_params(inst, &venc->params, 0);
+       if (ret)
+               goto error;
+       ret = vpu_session_configure_codec(inst);
+       if (ret)
+               goto error;
+
+       inst->state = VPU_CODEC_STATE_CONFIGURED;
+       /*vpu_iface_config_memory_resource*/
+
+       /*config enc expert mode parameter*/
+       ret = vpu_iface_set_encode_params(inst, &venc->params, 1);
+       if (ret)
+               goto error;
+
+       ret = vpu_session_start(inst);
+       if (ret)
+               goto error;
+       inst->state = VPU_CODEC_STATE_STARTED;
+
+       venc->bitrate_change = false;
+       venc->input_ready = true;
+       venc->frame_count = 0;
+       venc->encode_count = 0;
+       venc->ready_count = 0;
+       venc->stopped = false;
+       vpu_process_output_buffer(inst);
+       if (venc->frame_count == 0)
+               dev_err(inst->dev, "[%d] there is no input when starting\n", inst->id);
+
+       return 0;
+error:
+       venc_set_enable(venc, type, 0);
+       inst->state = VPU_CODEC_STATE_DEINIT;
+
+       vpu_free_dma(&inst->stream_buffer);
+       return ret;
+}
+
+static void venc_cleanup_mem_resource(struct vpu_inst *inst)
+{
+       struct venc_t *venc;
+       u32 i;
+
+       venc = inst->priv;
+
+       for (i = 0; i < ARRAY_SIZE(venc->enc); i++)
+               vpu_free_dma(&venc->enc[i]);
+       for (i = 0; i < ARRAY_SIZE(venc->ref); i++)
+               vpu_free_dma(&venc->ref[i]);
+}
+
+static void venc_request_mem_resource(struct vpu_inst *inst,
+                                     u32 enc_frame_size,
+                                     u32 enc_frame_num,
+                                     u32 ref_frame_size,
+                                     u32 ref_frame_num,
+                                     u32 act_frame_size,
+                                     u32 act_frame_num)
+{
+       struct venc_t *venc;
+       u32 i;
+       int ret;
+
+       venc = inst->priv;
+       if (enc_frame_num > ARRAY_SIZE(venc->enc)) {
+               dev_err(inst->dev, "[%d] enc num(%d) is out of range\n", inst->id, enc_frame_num);
+               return;
+       }
+       if (ref_frame_num > ARRAY_SIZE(venc->ref)) {
+               dev_err(inst->dev, "[%d] ref num(%d) is out of range\n", inst->id, ref_frame_num);
+               return;
+       }
+       if (act_frame_num > ARRAY_SIZE(venc->act)) {
+               dev_err(inst->dev, "[%d] act num(%d) is out of range\n", inst->id, act_frame_num);
+               return;
+       }
+
+       for (i = 0; i < enc_frame_num; i++) {
+               venc->enc[i].length = enc_frame_size;
+               ret = vpu_alloc_dma(inst->core, &venc->enc[i]);
+               if (ret) {
+                       venc_cleanup_mem_resource(inst);
+                       return;
+               }
+       }
+       for (i = 0; i < ref_frame_num; i++) {
+               venc->ref[i].length = ref_frame_size;
+               ret = vpu_alloc_dma(inst->core, &venc->ref[i]);
+               if (ret) {
+                       venc_cleanup_mem_resource(inst);
+                       return;
+               }
+       }
+       if (act_frame_num != 1 || act_frame_size > inst->act.length) {
+               venc_cleanup_mem_resource(inst);
+               return;
+       }
+       venc->act[0].length = act_frame_size;
+       venc->act[0].phys = inst->act.phys;
+       venc->act[0].virt = inst->act.virt;
+
+       for (i = 0; i < enc_frame_num; i++)
+               vpu_iface_config_memory_resource(inst, MEM_RES_ENC, i, &venc->enc[i]);
+       for (i = 0; i < ref_frame_num; i++)
+               vpu_iface_config_memory_resource(inst, MEM_RES_REF, i, &venc->ref[i]);
+       for (i = 0; i < act_frame_num; i++)
+               vpu_iface_config_memory_resource(inst, MEM_RES_ACT, i, &venc->act[i]);
+}
+
+static void venc_cleanup_frames(struct venc_t *venc)
+{
+       struct venc_frame_t *frame;
+       struct venc_frame_t *tmp;
+
+       list_for_each_entry_safe(frame, tmp, &venc->frames, list) {
+               list_del_init(&frame->list);
+               vfree(frame);
+       }
+}
+
+static int venc_stop_session(struct vpu_inst *inst, u32 type)
+{
+       struct venc_t *venc = inst->priv;
+
+       venc_set_enable(venc, type, 0);
+       if (venc->enable & VENC_ENABLE_MASK)
+               return 0;
+
+       if (inst->state == VPU_CODEC_STATE_DEINIT)
+               return 0;
+
+       if (inst->state != VPU_CODEC_STATE_STOP)
+               venc_request_eos(inst);
+
+       call_void_vop(inst, wait_prepare);
+       if (!wait_event_timeout(venc->wq, venc->stopped, VPU_TIMEOUT)) {
+               set_bit(inst->id, &inst->core->hang_mask);
+               vpu_session_debug(inst);
+       }
+       call_void_vop(inst, wait_finish);
+
+       inst->state = VPU_CODEC_STATE_DEINIT;
+       venc_cleanup_frames(inst->priv);
+       vpu_free_dma(&inst->stream_buffer);
+       venc_cleanup_mem_resource(inst);
+
+       return 0;
+}
+
+static int venc_process_output(struct vpu_inst *inst, struct vb2_buffer *vb)
+{
+       struct venc_t *venc = inst->priv;
+       struct vb2_v4l2_buffer *vbuf;
+       u32 flags;
+
+       if (inst->state == VPU_CODEC_STATE_DEINIT)
+               return -EINVAL;
+
+       vbuf = to_vb2_v4l2_buffer(vb);
+       if (inst->state == VPU_CODEC_STATE_STARTED)
+               inst->state = VPU_CODEC_STATE_ACTIVE;
+
+       flags = vbuf->flags;
+       if (venc->request_key_frame) {
+               vbuf->flags |= V4L2_BUF_FLAG_KEYFRAME;
+               venc->request_key_frame = 0;
+       }
+       if (venc->bitrate_change) {
+               vpu_session_update_parameters(inst, &venc->params);
+               venc->bitrate_change = false;
+       }
+       dev_dbg(inst->dev, "[%d][INPUT  TS]%32lld\n", inst->id, vb->timestamp);
+       vpu_iface_input_frame(inst, vb);
+       vbuf->flags = flags;
+       venc->input_ready = false;
+       venc->frame_count++;
+       vpu_set_buffer_state(vbuf, VPU_BUF_STATE_INUSE);
+
+       return 0;
+}
+
+static int venc_process_capture(struct vpu_inst *inst, struct vb2_buffer *vb)
+{
+       struct venc_t *venc;
+       struct venc_frame_t *frame = NULL;
+       struct vb2_v4l2_buffer *vbuf;
+       int ret;
+
+       venc = inst->priv;
+       if (list_empty(&venc->frames))
+               return -EINVAL;
+
+       frame = list_first_entry(&venc->frames, struct venc_frame_t, list);
+       vbuf = to_vb2_v4l2_buffer(vb);
+       v4l2_m2m_dst_buf_remove_by_buf(inst->fh.m2m_ctx, vbuf);
+       ret = venc_get_one_encoded_frame(inst, frame, vbuf);
+       if (ret)
+               return ret;
+
+       list_del_init(&frame->list);
+       vfree(frame);
+       return 0;
+}
+
+static void venc_on_queue_empty(struct vpu_inst *inst, u32 type)
+{
+       struct venc_t *venc = inst->priv;
+
+       if (V4L2_TYPE_IS_OUTPUT(type))
+               return;
+
+       if (venc->stopped)
+               venc_set_last_buffer_dequeued(inst);
+}
+
+static int venc_get_debug_info(struct vpu_inst *inst, char *str, u32 size, u32 i)
+{
+       struct venc_t *venc = inst->priv;
+       int num = -1;
+
+       switch (i) {
+       case 0:
+               num = scnprintf(str, size, "profile = %d\n", venc->params.profile);
+               break;
+       case 1:
+               num = scnprintf(str, size, "level = %d\n", venc->params.level);
+               break;
+       case 2:
+               num = scnprintf(str, size, "fps = %d/%d\n",
+                               venc->params.frame_rate.numerator,
+                               venc->params.frame_rate.denominator);
+               break;
+       case 3:
+               num = scnprintf(str, size, "%d x %d -> %d x %d\n",
+                               venc->params.src_width,
+                               venc->params.src_height,
+                               venc->params.out_width,
+                               venc->params.out_height);
+               break;
+       case 4:
+               num = scnprintf(str, size, "(%d, %d)  %d x %d\n",
+                               venc->params.crop.left,
+                               venc->params.crop.top,
+                               venc->params.crop.width,
+                               venc->params.crop.height);
+               break;
+       case 5:
+               num = scnprintf(str, size,
+                               "enable = 0x%x, input = %d, encode = %d, ready = %d, stopped = %d\n",
+                               venc->enable,
+                               venc->frame_count, venc->encode_count,
+                               venc->ready_count,
+                               venc->stopped);
+               break;
+       case 6:
+               num = scnprintf(str, size, "gop = %d\n", venc->params.gop_length);
+               break;
+       case 7:
+               num = scnprintf(str, size, "bframes = %d\n", venc->params.bframes);
+               break;
+       case 8:
+               num = scnprintf(str, size, "rc: %s, mode = %d, bitrate = %d(%d), qp = %d\n",
+                               venc->params.rc_enable ? "enable" : "disable",
+                               venc->params.rc_mode,
+                               venc->params.bitrate,
+                               venc->params.bitrate_max,
+                               venc->params.i_frame_qp);
+               break;
+       case 9:
+               num = scnprintf(str, size, "sar: enable = %d, idc = %d, %d x %d\n",
+                               venc->params.sar.enable,
+                               venc->params.sar.idc,
+                               venc->params.sar.width,
+                               venc->params.sar.height);
+
+               break;
+       case 10:
+               num = scnprintf(str, size,
+                               "colorspace: primaries = %d, transfer = %d, matrix = %d, full_range = %d\n",
+                               venc->params.color.primaries,
+                               venc->params.color.transfer,
+                               venc->params.color.matrix,
+                               venc->params.color.full_range);
+               break;
+       case 11:
+               num = scnprintf(str, size, "skipped: count = %d, bytes = %d\n",
+                               venc->skipped_count, venc->skipped_bytes);
+               break;
+       default:
+               break;
+       }
+
+       return num;
+}
+
+static struct vpu_inst_ops venc_inst_ops = {
+       .ctrl_init = venc_ctrl_init,
+       .check_ready = venc_check_ready,
+       .input_done = venc_input_done,
+       .get_one_frame = venc_frame_encoded,
+       .buf_done = venc_buf_done,
+       .stop_done = venc_stop_done,
+       .event_notify = venc_event_notify,
+       .release = venc_release,
+       .cleanup = venc_cleanup,
+       .start = venc_start_session,
+       .mem_request = venc_request_mem_resource,
+       .stop = venc_stop_session,
+       .process_output = venc_process_output,
+       .process_capture = venc_process_capture,
+       .on_queue_empty = venc_on_queue_empty,
+       .get_debug_info = venc_get_debug_info,
+       .wait_prepare = vpu_inst_unlock,
+       .wait_finish = vpu_inst_lock,
+};
+
+static void venc_init(struct file *file)
+{
+       struct vpu_inst *inst = to_inst(file);
+       struct venc_t *venc;
+       struct v4l2_format f;
+       struct v4l2_streamparm parm;
+
+       venc = inst->priv;
+       venc->params.qp_min = 1;
+       venc->params.qp_max = 51;
+       venc->params.qp_min_i = 1;
+       venc->params.qp_max_i = 51;
+       venc->params.bitrate_min = BITRATE_MIN;
+
+       memset(&f, 0, sizeof(f));
+       f.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+       f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_NV12M;
+       f.fmt.pix_mp.width = 1280;
+       f.fmt.pix_mp.height = 720;
+       f.fmt.pix_mp.field = V4L2_FIELD_NONE;
+       f.fmt.pix_mp.colorspace = V4L2_COLORSPACE_REC709;
+       venc_s_fmt(file, &inst->fh, &f);
+
+       memset(&f, 0, sizeof(f));
+       f.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+       f.fmt.pix_mp.pixelformat = V4L2_PIX_FMT_H264;
+       f.fmt.pix_mp.width = 1280;
+       f.fmt.pix_mp.height = 720;
+       f.fmt.pix_mp.field = V4L2_FIELD_NONE;
+       venc_s_fmt(file, &inst->fh, &f);
+
+       memset(&parm, 0, sizeof(parm));
+       parm.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+       parm.parm.capture.timeperframe.numerator = 1;
+       parm.parm.capture.timeperframe.denominator = 30;
+       venc_s_parm(file, &inst->fh, &parm);
+}
+
+static int venc_open(struct file *file)
+{
+       struct vpu_inst *inst;
+       struct venc_t *venc;
+       int ret;
+
+       inst = vzalloc(sizeof(*inst));
+       if (!inst)
+               return -ENOMEM;
+
+       venc = vzalloc(sizeof(*venc));
+       if (!venc) {
+               vfree(inst);
+               return -ENOMEM;
+       }
+
+       inst->ops = &venc_inst_ops;
+       inst->formats = venc_formats;
+       inst->type = VPU_CORE_TYPE_ENC;
+       inst->priv = venc;
+       INIT_LIST_HEAD(&venc->frames);
+       init_waitqueue_head(&venc->wq);
+
+       ret = vpu_v4l2_open(file, inst);
+       if (ret)
+               return ret;
+
+       venc_init(file);
+
+       return 0;
+}
+
+static const struct v4l2_file_operations venc_fops = {
+       .owner = THIS_MODULE,
+       .open = venc_open,
+       .release = vpu_v4l2_close,
+       .unlocked_ioctl = video_ioctl2,
+       .poll = v4l2_m2m_fop_poll,
+       .mmap = v4l2_m2m_fop_mmap,
+};
+
+const struct v4l2_ioctl_ops *venc_get_ioctl_ops(void)
+{
+       return &venc_ioctl_ops;
+}
+
+const struct v4l2_file_operations *venc_get_fops(void)
+{
+       return &venc_fops;
+}