CHROMIUM: [media] rk3288-vpu: move rk3288-vpu to rockchip-vpu
[firefly-linux-kernel-4.4.55.git] / drivers / media / platform / rockchip-vpu / rk3288_vpu_enc.c
diff --git a/drivers/media/platform/rockchip-vpu/rk3288_vpu_enc.c b/drivers/media/platform/rockchip-vpu/rk3288_vpu_enc.c
new file mode 100644 (file)
index 0000000..54b54ae
--- /dev/null
@@ -0,0 +1,1503 @@
+/*
+ * Rockchip RK3288 VPU codec driver
+ *
+ * Copyright (C) 2014 Rockchip Electronics Co., Ltd.
+ *     Alpha Lin <Alpha.Lin@rock-chips.com>
+ *     Jeffy Chen <jeffy.chen@rock-chips.com>
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *     Tomasz Figa <tfiga@chromium.org>
+ *
+ * Based on s5p-mfc driver by Samsung Electronics Co., Ltd.
+ *
+ * Copyright (C) 2010-2011 Samsung Electronics Co., Ltd.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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 "rk3288_vpu_common.h"
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/version.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-event.h>
+#include <linux/workqueue.h>
+#include <media/v4l2-ctrls.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-sg.h>
+
+#include "rk3288_vpu_enc.h"
+#include "rk3288_vpu_hw.h"
+
+#define DEF_SRC_FMT_ENC                                V4L2_PIX_FMT_NV12
+#define DEF_DST_FMT_ENC                                V4L2_PIX_FMT_VP8
+
+#define RK3288_ENC_MIN_WIDTH                   96U
+#define RK3288_ENC_MAX_WIDTH                   1920U
+#define RK3288_ENC_MIN_HEIGHT                  96U
+#define RK3288_ENC_MAX_HEIGHT                  1088U
+
+#define V4L2_CID_PRIVATE_RK3288_HEADER         (V4L2_CID_CUSTOM_BASE + 0)
+#define V4L2_CID_PRIVATE_RK3288_REG_PARAMS     (V4L2_CID_CUSTOM_BASE + 1)
+#define V4L2_CID_PRIVATE_RK3288_HW_PARAMS      (V4L2_CID_CUSTOM_BASE + 2)
+#define V4L2_CID_PRIVATE_RK3288_RET_PARAMS     (V4L2_CID_CUSTOM_BASE + 3)
+
+static struct rk3288_vpu_fmt formats[] = {
+       /* Source formats. */
+       {
+               .name = "4:2:0 3 planes Y/Cb/Cr",
+               .fourcc = V4L2_PIX_FMT_YUV420M,
+               .codec_mode = RK_VPU_CODEC_NONE,
+               .num_planes = 3,
+               .depth = { 8, 4, 4 },
+               .enc_fmt = RK3288_VPU_ENC_FMT_YUV420P,
+       },
+       {
+               .name = "4:2:0 2 plane Y/CbCr",
+               .fourcc = V4L2_PIX_FMT_NV12M,
+               .codec_mode = RK_VPU_CODEC_NONE,
+               .num_planes = 2,
+               .depth = { 8, 8 },
+               .enc_fmt = RK3288_VPU_ENC_FMT_YUV420SP,
+       },
+       {
+               .name = "4:2:2 1 plane YUYV",
+               .fourcc = V4L2_PIX_FMT_YUYV,
+               .codec_mode = RK_VPU_CODEC_NONE,
+               .num_planes = 1,
+               .depth = { 16 },
+               .enc_fmt = RK3288_VPU_ENC_FMT_YUYV422,
+       },
+       {
+               .name = "4:2:2 1 plane UYVY",
+               .fourcc = V4L2_PIX_FMT_UYVY,
+               .codec_mode = RK_VPU_CODEC_NONE,
+               .num_planes = 1,
+               .depth = { 16 },
+               .enc_fmt = RK3288_VPU_ENC_FMT_UYVY422,
+       },
+       /* Destination formats. */
+       {
+               .name = "VP8 Encoded Stream",
+               .fourcc = V4L2_PIX_FMT_VP8,
+               .codec_mode = RK_VPU_CODEC_VP8E,
+               .num_planes = 1,
+       },
+};
+
+static struct rk3288_vpu_fmt *find_format(u32 fourcc, bool bitstream)
+{
+       unsigned int i;
+
+       vpu_debug_enter();
+
+       for (i = 0; i < ARRAY_SIZE(formats); i++) {
+               if (formats[i].fourcc != fourcc)
+                       continue;
+               if (bitstream && formats[i].codec_mode != RK_VPU_CODEC_NONE)
+                       return &formats[i];
+               if (!bitstream && formats[i].codec_mode == RK_VPU_CODEC_NONE)
+                       return &formats[i];
+       }
+
+       return NULL;
+}
+
+/*
+ * Indices of controls that need to be accessed directly, i.e. through
+ * p_cur.p pointer of their v4l2_ctrl structs.
+ */
+enum {
+       RK3288_VPU_ENC_CTRL_HEADER,
+       RK3288_VPU_ENC_CTRL_REG_PARAMS,
+       RK3288_VPU_ENC_CTRL_HW_PARAMS,
+       RK3288_VPU_ENC_CTRL_RET_PARAMS,
+};
+
+static struct rk3288_vpu_control controls[] = {
+       /* Private, per-frame controls. */
+       [RK3288_VPU_ENC_CTRL_HEADER] = {
+               .id = V4L2_CID_PRIVATE_RK3288_HEADER,
+               .type = V4L2_CTRL_TYPE_PRIVATE,
+               .name = "Rk3288 Private Header",
+               .elem_size = RK3288_HEADER_SIZE,
+               .max_stores = VIDEO_MAX_FRAME,
+               .can_store = true,
+       },
+       [RK3288_VPU_ENC_CTRL_REG_PARAMS] = {
+               .id = V4L2_CID_PRIVATE_RK3288_REG_PARAMS,
+               .type = V4L2_CTRL_TYPE_PRIVATE,
+               .name = "Rk3288 Private Reg Params",
+               .elem_size = sizeof(struct rk3288_vp8e_reg_params),
+               .max_stores = VIDEO_MAX_FRAME,
+               .can_store = true,
+       },
+       [RK3288_VPU_ENC_CTRL_HW_PARAMS] = {
+               .id = V4L2_CID_PRIVATE_RK3288_HW_PARAMS,
+               .type = V4L2_CTRL_TYPE_PRIVATE,
+               .name = "Rk3288 Private Hw Params",
+               .elem_size = RK3288_HW_PARAMS_SIZE,
+               .max_stores = VIDEO_MAX_FRAME,
+               .can_store = true,
+       },
+       [RK3288_VPU_ENC_CTRL_RET_PARAMS] = {
+               .id = V4L2_CID_PRIVATE_RK3288_RET_PARAMS,
+               .type = V4L2_CTRL_TYPE_PRIVATE,
+               .name = "Rk3288 Private Ret Params",
+               .is_volatile = true,
+               .is_read_only = true,
+               .max_stores = VIDEO_MAX_FRAME,
+               .elem_size = RK3288_RET_PARAMS_SIZE,
+       },
+       /* Generic controls. (currently ignored) */
+       {
+               .id = V4L2_CID_MPEG_VIDEO_GOP_SIZE,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 1,
+               .maximum = 150,
+               .step = 1,
+               .default_value = 30,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE,
+               .type = V4L2_CTRL_TYPE_BOOLEAN,
+               .minimum = 0,
+               .maximum = 1,
+               .step = 1,
+               .default_value = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE,
+               .type = V4L2_CTRL_TYPE_BOOLEAN,
+               .minimum = 0,
+               .maximum = 1,
+               .step = 1,
+               .default_value = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_BITRATE,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 10000,
+               .maximum = 288000000,
+               .step = 1,
+               .default_value = 2097152,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_PROFILE,
+               .type = V4L2_CTRL_TYPE_MENU,
+               .minimum = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
+               .maximum = V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH,
+               .default_value = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
+               .menu_skip_mask = ~(
+                               (1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
+                               (1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
+                               (1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH)
+                       ),
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+               .type = V4L2_CTRL_TYPE_MENU,
+               .minimum = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+               .maximum = V4L2_MPEG_VIDEO_H264_LEVEL_4_1,
+               .default_value = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_MAX_QP,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 0,
+               .maximum = 51,
+               .step = 1,
+               .default_value = 30,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_MIN_QP,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 0,
+               .maximum = 51,
+               .step = 1,
+               .default_value = 18,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM,
+               .type = V4L2_CTRL_TYPE_BOOLEAN,
+               .minimum = 0,
+               .maximum = 1,
+               .step = 1,
+               .default_value = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 0,
+               .maximum = 288000,
+               .step = 1,
+               .default_value = 30000,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING,
+               .type = V4L2_CTRL_TYPE_BOOLEAN,
+               .minimum = 0,
+               .maximum = 1,
+               .step = 1,
+               .default_value = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME,
+               .type = V4L2_CTRL_TYPE_BUTTON,
+       },
+       /*
+        * This hardware does not support features provided by controls
+        * below, but they are required for compatibility with certain
+        * userspace software.
+        */
+       {
+               .id = V4L2_CID_MPEG_MFC51_VIDEO_RC_REACTION_COEFF,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .name = "Rate Control Reaction Coeff.",
+               .minimum = 1,
+               .maximum = (1 << 16) - 1,
+               .step = 1,
+               .default_value = 1,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_HEADER_MODE,
+               .type = V4L2_CTRL_TYPE_MENU,
+               .minimum = V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE,
+               .maximum = V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME,
+               .default_value = V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE,
+               .menu_skip_mask = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_MFC51_VIDEO_RC_FIXED_TARGET_BIT,
+               .type = V4L2_CTRL_TYPE_BOOLEAN,
+               .name = "Fixed Target Bit Enable",
+               .minimum = 0,
+               .maximum = 1,
+               .default_value = 0,
+               .step = 1,
+               .menu_skip_mask = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_B_FRAMES,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 0,
+               .maximum = 2,
+               .step = 1,
+               .default_value = 0,
+       },
+       {
+               .id = V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP,
+               .type = V4L2_CTRL_TYPE_INTEGER,
+               .minimum = 0,
+               .maximum = 51,
+               .step = 1,
+               .default_value = 1,
+       },
+};
+
+static inline const void *get_ctrl_ptr(struct rk3288_vpu_ctx *ctx, unsigned id)
+{
+       struct v4l2_ctrl *ctrl = ctx->ctrls[id];
+
+       return ctrl->p_cur.p;
+}
+
+static const char *const *rk3288_vpu_enc_get_menu(u32 id)
+{
+       static const char *const vpu_video_frame_skip[] = {
+               "Disabled",
+               "Level Limit",
+               "VBV/CPB Limit",
+               NULL,
+       };
+
+       switch (id) {
+       case V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE:
+               return vpu_video_frame_skip;
+       }
+
+       return NULL;
+}
+
+static int vidioc_querycap(struct file *file, void *priv,
+                          struct v4l2_capability *cap)
+{
+       struct rk3288_vpu_dev *dev = video_drvdata(file);
+
+       vpu_debug_enter();
+
+       strlcpy(cap->driver, RK3288_VPU_ENC_NAME, sizeof(cap->driver));
+       strlcpy(cap->card, dev->pdev->name, sizeof(cap->card));
+       strlcpy(cap->bus_info, "platform:" RK3288_VPU_NAME,
+               sizeof(cap->bus_info));
+
+       /*
+        * This is only a mem-to-mem video device. The capture and output
+        * device capability flags are left only for backward compatibility
+        * and are scheduled for removal.
+        */
+       cap->capabilities = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING |
+           V4L2_CAP_VIDEO_CAPTURE_MPLANE | V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+
+       vpu_debug_leave();
+
+       return 0;
+}
+
+static int vidioc_enum_framesizes(struct file *file, void *prov,
+                                 struct v4l2_frmsizeenum *fsize)
+{
+       struct v4l2_frmsize_stepwise *s = &fsize->stepwise;
+       struct rk3288_vpu_fmt *fmt;
+
+       if (fsize->index != 0) {
+               vpu_debug(0, "invalid frame size index (expected 0, got %d)\n",
+                               fsize->index);
+               return -EINVAL;
+       }
+
+       fmt = find_format(fsize->pixel_format, true);
+       if (!fmt) {
+               vpu_debug(0, "unsupported bitstream format (%08x)\n",
+                               fsize->pixel_format);
+               return -EINVAL;
+       }
+
+       fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+
+       s->min_width = RK3288_ENC_MIN_WIDTH;
+       s->max_width = RK3288_ENC_MAX_WIDTH;
+       s->step_width = MB_DIM;
+       s->min_height = RK3288_ENC_MIN_HEIGHT;
+       s->max_height = RK3288_ENC_MAX_HEIGHT;
+       s->step_height = MB_DIM;
+
+       return 0;
+}
+
+static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool out)
+{
+       struct rk3288_vpu_fmt *fmt;
+       int i, j = 0;
+
+       vpu_debug_enter();
+
+       for (i = 0; i < ARRAY_SIZE(formats); ++i) {
+               if (out && formats[i].codec_mode != RK_VPU_CODEC_NONE)
+                       continue;
+               else if (!out && formats[i].codec_mode == RK_VPU_CODEC_NONE)
+                       continue;
+
+               if (j == f->index) {
+                       fmt = &formats[i];
+                       strlcpy(f->description, fmt->name,
+                               sizeof(f->description));
+                       f->pixelformat = fmt->fourcc;
+
+                       f->flags = 0;
+                       if (formats[i].codec_mode != RK_VPU_CODEC_NONE)
+                               f->flags |= V4L2_FMT_FLAG_COMPRESSED;
+
+                       vpu_debug_leave();
+
+                       return 0;
+               }
+
+               ++j;
+       }
+
+       vpu_debug_leave();
+
+       return -EINVAL;
+}
+
+static int vidioc_enum_fmt_vid_cap_mplane(struct file *file, void *priv,
+                                         struct v4l2_fmtdesc *f)
+{
+       return vidioc_enum_fmt(f, false);
+}
+
+static int vidioc_enum_fmt_vid_out_mplane(struct file *file, void *priv,
+                                         struct v4l2_fmtdesc *f)
+{
+       return vidioc_enum_fmt(f, true);
+}
+
+static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+
+       vpu_debug_enter();
+
+       vpu_debug(4, "f->type = %d\n", f->type);
+
+       switch (f->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               f->fmt.pix_mp = ctx->dst_fmt;
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               f->fmt.pix_mp = ctx->src_fmt;
+               break;
+
+       default:
+               vpu_err("invalid buf type\n");
+               return -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return 0;
+}
+
+static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+       struct rk3288_vpu_fmt *fmt;
+       struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
+       char str[5];
+
+       vpu_debug_enter();
+
+       switch (f->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               vpu_debug(4, "%s\n", fmt2str(f->fmt.pix_mp.pixelformat, str));
+
+               fmt = find_format(pix_fmt_mp->pixelformat, true);
+               if (!fmt) {
+                       vpu_err("failed to try capture format\n");
+                       return -EINVAL;
+               }
+
+               if (pix_fmt_mp->plane_fmt[0].sizeimage == 0) {
+                       vpu_err("must be set encoding output size\n");
+                       return -EINVAL;
+               }
+
+               pix_fmt_mp->plane_fmt[0].bytesperline = 0;
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               vpu_debug(4, "%s\n", fmt2str(f->fmt.pix_mp.pixelformat, str));
+
+               fmt = find_format(pix_fmt_mp->pixelformat, false);
+               if (!fmt) {
+                       vpu_err("failed to try output format\n");
+                       return -EINVAL;
+               }
+
+               if (fmt->num_planes != pix_fmt_mp->num_planes) {
+                       vpu_err("plane number mismatches on output format\n");
+                       return -EINVAL;
+               }
+
+               /* Limit to hardware min/max. */
+               pix_fmt_mp->width = clamp(pix_fmt_mp->width,
+                               RK3288_ENC_MIN_WIDTH, RK3288_ENC_MAX_WIDTH);
+               pix_fmt_mp->height = clamp(pix_fmt_mp->height,
+                               RK3288_ENC_MIN_HEIGHT, RK3288_ENC_MAX_HEIGHT);
+               /* Round up to macroblocks. */
+               pix_fmt_mp->width = round_up(pix_fmt_mp->width, MB_DIM);
+               pix_fmt_mp->height = round_up(pix_fmt_mp->height, MB_DIM);
+               break;
+
+       default:
+               vpu_err("invalid buf type\n");
+               return -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return 0;
+}
+
+static void calculate_plane_sizes(struct rk3288_vpu_fmt *fmt,
+                                 unsigned int w, unsigned int h,
+                                 struct v4l2_pix_format_mplane *pix_fmt_mp)
+{
+       int i;
+
+       for (i = 0; i < fmt->num_planes; ++i) {
+               pix_fmt_mp->plane_fmt[i].bytesperline = w * fmt->depth[i] / 8;
+               pix_fmt_mp->plane_fmt[i].sizeimage = h *
+                                       pix_fmt_mp->plane_fmt[i].bytesperline;
+               /*
+                * All of multiplanar formats we support have chroma
+                * planes subsampled by 2 vertically.
+                */
+               if (i != 0)
+                       pix_fmt_mp->plane_fmt[i].sizeimage /= 2;
+       }
+}
+
+static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+       struct v4l2_pix_format_mplane *pix_fmt_mp = &f->fmt.pix_mp;
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       unsigned int mb_width, mb_height;
+       struct rk3288_vpu_fmt *fmt;
+       int ret = 0;
+
+       vpu_debug_enter();
+
+       /* Change not allowed if any queue is streaming. */
+       if (vb2_is_streaming(&ctx->vq_src) || vb2_is_streaming(&ctx->vq_dst)) {
+               ret = -EBUSY;
+               goto out;
+       }
+
+       switch (f->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               /*
+                * Pixel format change is not allowed when the other queue has
+                * buffers allocated.
+                */
+               if (vb2_is_busy(&ctx->vq_src)
+                   && pix_fmt_mp->pixelformat != ctx->dst_fmt.pixelformat) {
+                       ret = -EBUSY;
+                       goto out;
+               }
+
+               ret = vidioc_try_fmt(file, priv, f);
+               if (ret)
+                       goto out;
+
+               ctx->vpu_dst_fmt = find_format(pix_fmt_mp->pixelformat, true);
+               ctx->dst_fmt = *pix_fmt_mp;
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               /*
+                * Pixel format change is not allowed when the other queue has
+                * buffers allocated.
+                */
+               if (vb2_is_busy(&ctx->vq_dst)
+                   && pix_fmt_mp->pixelformat != ctx->src_fmt.pixelformat) {
+                       ret = -EBUSY;
+                       goto out;
+               }
+
+               ret = vidioc_try_fmt(file, priv, f);
+               if (ret)
+                       goto out;
+
+               fmt = find_format(pix_fmt_mp->pixelformat, false);
+               ctx->vpu_src_fmt = fmt;
+
+               mb_width = MB_WIDTH(pix_fmt_mp->width);
+               mb_height = MB_HEIGHT(pix_fmt_mp->height);
+
+               vpu_debug(0, "OUTPUT codec mode: %d\n", fmt->codec_mode);
+               vpu_debug(0, "fmt - w: %d, h: %d, mb - w: %d, h: %d\n",
+                         pix_fmt_mp->width, pix_fmt_mp->height,
+                         mb_width, mb_height);
+
+               calculate_plane_sizes(fmt, mb_width * MB_DIM,
+                                       mb_height * MB_DIM, pix_fmt_mp);
+
+               /* Reset crop rectangle. */
+               ctx->src_crop.width = pix_fmt_mp->width;
+               ctx->src_crop.height = pix_fmt_mp->height;
+
+               ctx->src_fmt = *pix_fmt_mp;
+               break;
+
+       default:
+               vpu_err("invalid buf type\n");
+               return -EINVAL;
+       }
+
+out:
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+                         struct v4l2_requestbuffers *reqbufs)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+
+       vpu_debug_enter();
+
+       switch (reqbufs->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               vpu_debug(4, "\n");
+
+               ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+               if (ret != 0) {
+                       vpu_err("error in vb2_reqbufs() for E(D)\n");
+                       goto out;
+               }
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               vpu_debug(4, "memory type %d\n", reqbufs->memory);
+
+               ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
+               if (ret != 0) {
+                       vpu_err("error in vb2_reqbufs() for E(S)\n");
+                       goto out;
+               }
+               break;
+
+       default:
+               vpu_err("invalid buf type\n");
+               ret = -EINVAL;
+               goto out;
+       }
+
+out:
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+                          struct v4l2_buffer *buf)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+
+       vpu_debug_enter();
+
+       switch (buf->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               ret = vb2_querybuf(&ctx->vq_dst, buf);
+               if (ret != 0) {
+                       vpu_err("error in vb2_querybuf() for E(D)\n");
+                       goto out;
+               }
+
+               buf->m.planes[0].m.mem_offset += DST_QUEUE_OFF_BASE;
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               ret = vb2_querybuf(&ctx->vq_src, buf);
+               if (ret != 0) {
+                       vpu_err("error in vb2_querybuf() for E(S)\n");
+                       goto out;
+               }
+               break;
+
+       default:
+               vpu_err("invalid buf type\n");
+               ret = -EINVAL;
+               goto out;
+       }
+
+out:
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+       int i;
+
+       vpu_debug_enter();
+
+       for (i = 0; i < buf->length; i++) {
+               vpu_debug(4, "plane[%d]->length %d bytesused %d\n",
+                         i, buf->m.planes[i].length,
+                         buf->m.planes[i].bytesused);
+       }
+
+       switch (buf->type) {
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               ret = vb2_qbuf(&ctx->vq_src, buf);
+               vpu_debug(4, "vb2_qbuf return %d\n", ret);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               ret = vb2_qbuf(&ctx->vq_dst, buf);
+               vpu_debug(4, "vb2_qbuf return %d\n", ret);
+               break;
+
+       default:
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+
+       vpu_debug_enter();
+
+       switch (buf->type) {
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               ret = vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               ret = vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
+               break;
+
+       default:
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_expbuf(struct file *file, void *priv,
+                        struct v4l2_exportbuffer *eb)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+
+       vpu_debug_enter();
+
+       switch (eb->type) {
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               ret = vb2_expbuf(&ctx->vq_src, eb);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               ret = vb2_expbuf(&ctx->vq_dst, eb);
+               break;
+
+       default:
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+                          enum v4l2_buf_type type)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+
+       vpu_debug_enter();
+
+       switch (type) {
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               ret = vb2_streamon(&ctx->vq_src, type);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               ret = vb2_streamon(&ctx->vq_dst, type);
+               break;
+
+       default:
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+                           enum v4l2_buf_type type)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret;
+
+       vpu_debug_enter();
+
+       switch (type) {
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               ret = vb2_streamoff(&ctx->vq_src, type);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               ret = vb2_streamoff(&ctx->vq_dst, type);
+               break;
+
+       default:
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int rk3288_vpu_enc_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+       struct rk3288_vpu_ctx *ctx = ctrl_to_ctx(ctrl);
+       struct rk3288_vpu_dev *dev = ctx->dev;
+       int ret = 0;
+
+       vpu_debug_enter();
+
+       vpu_debug(4, "ctrl id %d\n", ctrl->id);
+
+       switch (ctrl->id) {
+       case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+       case V4L2_CID_MPEG_VIDEO_BITRATE:
+       case V4L2_CID_MPEG_VIDEO_H264_MAX_QP:
+       case V4L2_CID_MPEG_VIDEO_H264_MIN_QP:
+       case V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE:
+       case V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE:
+       case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+       case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+       case V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM:
+       case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE:
+       case V4L2_CID_MPEG_VIDEO_H264_SEI_FRAME_PACKING:
+       case V4L2_CID_MPEG_MFC51_VIDEO_RC_REACTION_COEFF:
+       case V4L2_CID_MPEG_VIDEO_HEADER_MODE:
+       case V4L2_CID_MPEG_MFC51_VIDEO_RC_FIXED_TARGET_BIT:
+       case V4L2_CID_MPEG_VIDEO_B_FRAMES:
+       case V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP:
+       case V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME:
+               /* Ignore these controls for now. (FIXME?) */
+               break;
+
+       case V4L2_CID_PRIVATE_RK3288_HEADER:
+       case V4L2_CID_PRIVATE_RK3288_REG_PARAMS:
+       case V4L2_CID_PRIVATE_RK3288_HW_PARAMS:
+               /* Nothing to do here. The control is used directly. */
+               break;
+
+       default:
+               v4l2_err(&dev->v4l2_dev, "Invalid control, id=%d, val=%d\n",
+                        ctrl->id, ctrl->val);
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int rk3288_vpu_enc_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+       struct rk3288_vpu_ctx *ctx = ctrl_to_ctx(ctrl);
+       struct rk3288_vpu_dev *dev = ctx->dev;
+       int ret = 0;
+
+       vpu_debug_enter();
+
+       vpu_debug(4, "ctrl id %d\n", ctrl->id);
+
+       switch (ctrl->id) {
+       case V4L2_CID_PRIVATE_RK3288_RET_PARAMS:
+               memcpy(ctrl->p_new.p, ctx->run.priv_dst.cpu,
+                       RK3288_RET_PARAMS_SIZE);
+               break;
+
+       default:
+               v4l2_err(&dev->v4l2_dev, "Invalid control, id=%d, val=%d\n",
+                        ctrl->id, ctrl->val);
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static const struct v4l2_ctrl_ops rk3288_vpu_enc_ctrl_ops = {
+       .s_ctrl = rk3288_vpu_enc_s_ctrl,
+       .g_volatile_ctrl = rk3288_vpu_enc_g_volatile_ctrl,
+};
+
+static int vidioc_cropcap(struct file *file, void *priv,
+                         struct v4l2_cropcap *cap)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       struct v4l2_pix_format_mplane *fmt = &ctx->src_fmt;
+       int ret = 0;
+
+       vpu_debug_enter();
+
+       /* Crop only supported on source. */
+       if (cap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+               ret = -EINVAL;
+               goto out;
+       }
+
+       cap->bounds.left = 0;
+       cap->bounds.top = 0;
+       cap->bounds.width = fmt->width;
+       cap->bounds.height = fmt->height;
+       cap->defrect = cap->bounds;
+       cap->pixelaspect.numerator = 1;
+       cap->pixelaspect.denominator = 1;
+
+out:
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       int ret = 0;
+
+       vpu_debug_enter();
+
+       /* Crop only supported on source. */
+       if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+               ret = -EINVAL;
+               goto out;
+       }
+
+       crop->c = ctx->src_crop;
+
+out:
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int vidioc_s_crop(struct file *file, void *priv,
+                        const struct v4l2_crop *crop)
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(priv);
+       struct v4l2_pix_format_mplane *fmt = &ctx->src_fmt;
+       const struct v4l2_rect *rect = &crop->c;
+       int ret = 0;
+
+       vpu_debug_enter();
+
+       /* Crop only supported on source. */
+       if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+               ret = -EINVAL;
+               goto out;
+       }
+
+       /* Change not allowed if the queue is streaming. */
+       if (vb2_is_streaming(&ctx->vq_src)) {
+               ret = -EBUSY;
+               goto out;
+       }
+
+       /* We do not support offsets. */
+       if (rect->left != 0 || rect->top != 0)
+               goto fallback;
+
+       /* We can crop only inside right- or bottom-most macroblocks. */
+       if (round_up(rect->width, MB_DIM) != fmt->width
+           || round_up(rect->height, MB_DIM) != fmt->height)
+               goto fallback;
+
+       /* We support widths aligned to 4 pixels and arbitrary heights. */
+       ctx->src_crop.width = round_up(rect->width, 4);
+       ctx->src_crop.height = rect->height;
+
+       vpu_debug_leave();
+
+       return 0;
+
+fallback:
+       /* Default to full frame for incorrect settings. */
+       ctx->src_crop.width = fmt->width;
+       ctx->src_crop.height = fmt->height;
+
+out:
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static const struct v4l2_ioctl_ops rk3288_vpu_enc_ioctl_ops = {
+       .vidioc_querycap = vidioc_querycap,
+       .vidioc_enum_framesizes = vidioc_enum_framesizes,
+       .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap_mplane,
+       .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out_mplane,
+       .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
+       .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
+       .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
+       .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
+       .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
+       .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
+       .vidioc_reqbufs = vidioc_reqbufs,
+       .vidioc_querybuf = vidioc_querybuf,
+       .vidioc_qbuf = vidioc_qbuf,
+       .vidioc_dqbuf = vidioc_dqbuf,
+       .vidioc_expbuf = vidioc_expbuf,
+       .vidioc_streamon = vidioc_streamon,
+       .vidioc_streamoff = vidioc_streamoff,
+       .vidioc_cropcap = vidioc_cropcap,
+       .vidioc_g_crop = vidioc_g_crop,
+       .vidioc_s_crop = vidioc_s_crop,
+};
+
+static int rk3288_vpu_queue_setup(struct vb2_queue *vq,
+                                 const struct v4l2_format *fmt,
+                                 unsigned int *buf_count,
+                                 unsigned int *plane_count,
+                                 unsigned int psize[], void *allocators[])
+{
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(vq->drv_priv);
+       int ret = 0;
+       int i;
+
+       vpu_debug_enter();
+
+       switch (vq->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               *plane_count = ctx->vpu_dst_fmt->num_planes;
+
+               if (*buf_count < 1)
+                       *buf_count = 1;
+
+               if (*buf_count > VIDEO_MAX_FRAME)
+                       *buf_count = VIDEO_MAX_FRAME;
+
+               psize[0] = ctx->dst_fmt.plane_fmt[0].sizeimage;
+               /* Kernel mapping necessary for bitstream post processing. */
+               allocators[0] = ctx->dev->alloc_ctx_vm;
+               vpu_debug(0, "capture psize[%d]: %d\n", 0, psize[0]);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               *plane_count = ctx->vpu_src_fmt->num_planes;
+
+               if (*buf_count < 1)
+                       *buf_count = 1;
+
+               if (*buf_count > VIDEO_MAX_FRAME)
+                       *buf_count = VIDEO_MAX_FRAME;
+
+               for (i = 0; i < ctx->vpu_src_fmt->num_planes; ++i) {
+                       psize[i] = ctx->src_fmt.plane_fmt[i].sizeimage;
+                       vpu_debug(0, "output psize[%d]: %d\n", i, psize[i]);
+                       allocators[i] = ctx->dev->alloc_ctx;
+               }
+               break;
+
+       default:
+               vpu_err("invalid queue type: %d\n", vq->type);
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static int rk3288_vpu_buf_prepare(struct vb2_buffer *vb)
+{
+       struct vb2_queue *vq = vb->vb2_queue;
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(vq->drv_priv);
+       int ret = 0;
+       int i;
+
+       vpu_debug_enter();
+
+       switch (vq->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               vpu_debug(4, "plane size: %ld, dst size: %d\n",
+                               vb2_plane_size(vb, 0),
+                               ctx->dst_fmt.plane_fmt[0].sizeimage);
+
+               if (vb2_plane_size(vb, 0)
+                   < ctx->dst_fmt.plane_fmt[0].sizeimage) {
+                       vpu_err("plane size is too small for capture\n");
+                       ret = -EINVAL;
+               }
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               for (i = 0; i < ctx->vpu_src_fmt->num_planes; ++i) {
+                       vpu_debug(4, "plane %d size: %ld, sizeimage: %u\n", i,
+                                       vb2_plane_size(vb, i),
+                                       ctx->src_fmt.plane_fmt[i].sizeimage);
+
+                       if (vb2_plane_size(vb, i)
+                           < ctx->src_fmt.plane_fmt[i].sizeimage) {
+                               vpu_err("size of plane %d is too small for output\n",
+                                       i);
+                               break;
+                       }
+               }
+
+               if (i != ctx->vpu_src_fmt->num_planes)
+                       ret = -EINVAL;
+               break;
+
+       default:
+               vpu_err("invalid queue type: %d\n", vq->type);
+               ret = -EINVAL;
+       }
+
+       vpu_debug_leave();
+
+       return ret;
+}
+
+static void rk3288_vpu_buf_finish(struct vb2_buffer *vb)
+{
+       struct vb2_queue *vq = vb->vb2_queue;
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(vq->drv_priv);
+
+       vpu_debug_enter();
+
+       if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
+           && vb->state == VB2_BUF_STATE_DONE
+           && ctx->vpu_dst_fmt->fourcc == V4L2_PIX_FMT_VP8) {
+               struct rk3288_vpu_buf *buf;
+
+               buf = vb_to_buf(vb);
+               rk3288_vpu_vp8e_assemble_bitstream(ctx, buf);
+       }
+
+       vpu_debug_leave();
+}
+
+static int rk3288_vpu_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+       int ret = 0;
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(q->drv_priv);
+       struct rk3288_vpu_dev *dev = ctx->dev;
+       bool ready = false;
+
+       vpu_debug_enter();
+
+       if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+               ret = rk3288_vpu_init(ctx);
+               if (ret < 0) {
+                       vpu_err("rk3288_vpu_init failed\n");
+                       return ret;
+               }
+
+               ready = vb2_is_streaming(&ctx->vq_src);
+       } else if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+               ready = vb2_is_streaming(&ctx->vq_dst);
+       }
+
+       if (ready)
+               rk3288_vpu_try_context(dev, ctx);
+
+       vpu_debug_leave();
+
+       return 0;
+}
+
+static void rk3288_vpu_stop_streaming(struct vb2_queue *q)
+{
+       unsigned long flags;
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(q->drv_priv);
+       struct rk3288_vpu_dev *dev = ctx->dev;
+       struct rk3288_vpu_buf *b;
+       LIST_HEAD(queue);
+       int i;
+
+       vpu_debug_enter();
+
+       spin_lock_irqsave(&dev->irqlock, flags);
+
+       list_del_init(&ctx->list);
+
+       switch (q->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               list_splice_init(&ctx->dst_queue, &queue);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               list_splice_init(&ctx->src_queue, &queue);
+               break;
+
+       default:
+               break;
+       }
+
+       spin_unlock_irqrestore(&dev->irqlock, flags);
+
+       wait_event(dev->run_wq, dev->current_ctx != ctx);
+
+       while (!list_empty(&queue)) {
+               b = list_first_entry(&queue, struct rk3288_vpu_buf, list);
+               for (i = 0; i < b->b.num_planes; i++)
+                       vb2_set_plane_payload(&b->b, i, 0);
+               vb2_buffer_done(&b->b, VB2_BUF_STATE_ERROR);
+               list_del(&b->list);
+       }
+
+       if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+               rk3288_vpu_deinit(ctx);
+
+       vpu_debug_leave();
+}
+
+static void rk3288_vpu_buf_queue(struct vb2_buffer *vb)
+{
+       struct vb2_queue *vq = vb->vb2_queue;
+       struct rk3288_vpu_ctx *ctx = fh_to_ctx(vq->drv_priv);
+       struct rk3288_vpu_dev *dev = ctx->dev;
+       struct rk3288_vpu_buf *vpu_buf;
+       unsigned long flags;
+
+       vpu_debug_enter();
+
+       switch (vq->type) {
+       case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+               vpu_buf = vb_to_buf(vb);
+
+               /* Mark destination as available for use by VPU */
+               spin_lock_irqsave(&dev->irqlock, flags);
+
+               list_add_tail(&vpu_buf->list, &ctx->dst_queue);
+
+               spin_unlock_irqrestore(&dev->irqlock, flags);
+               break;
+
+       case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+               vpu_buf = vb_to_buf(vb);
+
+               spin_lock_irqsave(&dev->irqlock, flags);
+
+               list_add_tail(&vpu_buf->list, &ctx->src_queue);
+
+               spin_unlock_irqrestore(&dev->irqlock, flags);
+               break;
+
+       default:
+               vpu_err("unsupported buffer type (%d)\n", vq->type);
+       }
+
+       if (vb2_is_streaming(&ctx->vq_src) && vb2_is_streaming(&ctx->vq_dst))
+               rk3288_vpu_try_context(dev, ctx);
+
+       vpu_debug_leave();
+}
+
+static struct vb2_ops rk3288_vpu_enc_qops = {
+       .queue_setup = rk3288_vpu_queue_setup,
+       .wait_prepare = vb2_ops_wait_prepare,
+       .wait_finish = vb2_ops_wait_finish,
+       .buf_prepare = rk3288_vpu_buf_prepare,
+       .buf_finish = rk3288_vpu_buf_finish,
+       .start_streaming = rk3288_vpu_start_streaming,
+       .stop_streaming = rk3288_vpu_stop_streaming,
+       .buf_queue = rk3288_vpu_buf_queue,
+};
+
+struct vb2_ops *get_enc_queue_ops(void)
+{
+       return &rk3288_vpu_enc_qops;
+}
+
+const struct v4l2_ioctl_ops *get_enc_v4l2_ioctl_ops(void)
+{
+       return &rk3288_vpu_enc_ioctl_ops;
+}
+
+static void rk3288_vpu_enc_prepare_run(struct rk3288_vpu_ctx *ctx)
+{
+       struct vb2_buffer *vb2_src = &ctx->run.src->b;
+       unsigned config_store = vb2_src->v4l2_buf.config_store;
+
+       v4l2_ctrl_apply_store(&ctx->ctrl_handler, config_store);
+
+       memcpy(ctx->run.dst->vp8e.header,
+               get_ctrl_ptr(ctx, RK3288_VPU_ENC_CTRL_HEADER),
+               RK3288_HEADER_SIZE);
+       ctx->run.vp8e.reg_params = get_ctrl_ptr(ctx,
+               RK3288_VPU_ENC_CTRL_REG_PARAMS);
+       memcpy(ctx->run.priv_src.cpu,
+               get_ctrl_ptr(ctx, RK3288_VPU_ENC_CTRL_HW_PARAMS),
+               RK3288_HW_PARAMS_SIZE);
+}
+
+static const struct rk3288_vpu_run_ops rk3288_vpu_enc_run_ops = {
+       .prepare_run = rk3288_vpu_enc_prepare_run,
+};
+
+int rk3288_vpu_enc_init(struct rk3288_vpu_ctx *ctx)
+{
+       struct rk3288_vpu_dev *vpu = ctx->dev;
+       int ret;
+
+       ctx->vpu_src_fmt = find_format(DEF_SRC_FMT_ENC, false);
+       ctx->vpu_dst_fmt = find_format(DEF_DST_FMT_ENC, true);
+
+       ret = rk3288_vpu_aux_buf_alloc(vpu, &ctx->run.priv_src,
+                                       RK3288_HW_PARAMS_SIZE);
+       if (ret) {
+               vpu_err("Failed to allocate private source buffer.\n");
+               return ret;
+       }
+
+
+       ret = rk3288_vpu_aux_buf_alloc(vpu, &ctx->run.priv_dst,
+                                       RK3288_RET_PARAMS_SIZE);
+       if (ret) {
+               vpu_err("Failed to allocate private destination buffer.\n");
+               goto err_priv_src;
+       }
+
+       ret = rk3288_vpu_ctrls_setup(ctx, &rk3288_vpu_enc_ctrl_ops,
+                                       controls, ARRAY_SIZE(controls),
+                                       rk3288_vpu_enc_get_menu);
+       if (ret) {
+               vpu_err("Failed to set up controls\n");
+               goto err_priv_dst;
+       }
+
+       ctx->run_ops = &rk3288_vpu_enc_run_ops;
+
+       return 0;
+
+err_priv_dst:
+       rk3288_vpu_aux_buf_free(vpu, &ctx->run.priv_dst);
+err_priv_src:
+       rk3288_vpu_aux_buf_free(vpu, &ctx->run.priv_src);
+
+       return ret;
+}
+
+void rk3288_vpu_enc_exit(struct rk3288_vpu_ctx *ctx)
+{
+       struct rk3288_vpu_dev *vpu = ctx->dev;
+
+       rk3288_vpu_ctrls_delete(ctx);
+
+       rk3288_vpu_aux_buf_free(vpu, &ctx->run.priv_dst);
+       rk3288_vpu_aux_buf_free(vpu, &ctx->run.priv_src);
+};
+
+/*
+ * WAR for encoder state corruption after decoding
+ */
+
+static const struct rk3288_vpu_run_ops dummy_encode_run_ops = {
+       /* No ops needed for dummy encoding. */
+};
+
+#define DUMMY_W                64
+#define DUMMY_H                64
+#define DUMMY_SRC_FMT  V4L2_PIX_FMT_YUYV
+#define DUMMY_DST_FMT  V4L2_PIX_FMT_VP8
+#define DUMMY_DST_SIZE (32 * 1024)
+
+int rk3288_vpu_enc_init_dummy_ctx(struct rk3288_vpu_dev *dev)
+{
+       struct rk3288_vpu_ctx *ctx;
+       int ret;
+       int i;
+
+       ctx = devm_kzalloc(dev->dev, sizeof(*ctx), GFP_KERNEL);
+       if (!ctx)
+               return -ENOMEM;
+
+       ctx->dev = dev;
+
+       ctx->vpu_src_fmt = find_format(DUMMY_SRC_FMT, false);
+       ctx->src_fmt.width = DUMMY_W;
+       ctx->src_fmt.height = DUMMY_H;
+       ctx->src_fmt.pixelformat = ctx->vpu_src_fmt->fourcc;
+       ctx->src_fmt.num_planes = ctx->vpu_src_fmt->num_planes;
+
+       calculate_plane_sizes(ctx->vpu_src_fmt, ctx->src_fmt.width,
+                               ctx->src_fmt.height, &ctx->src_fmt);
+
+       ctx->vpu_dst_fmt = find_format(DUMMY_DST_FMT, true);
+       ctx->dst_fmt.width = ctx->src_fmt.width;
+       ctx->dst_fmt.height = ctx->src_fmt.height;
+       ctx->dst_fmt.pixelformat = ctx->vpu_dst_fmt->fourcc;
+       ctx->dst_fmt.plane_fmt[0].sizeimage = DUMMY_DST_SIZE;
+       ctx->dst_fmt.plane_fmt[0].bytesperline = 0;
+       ctx->dst_fmt.num_planes = 1;
+
+       INIT_LIST_HEAD(&ctx->src_queue);
+
+       ctx->src_crop.left = 0;
+       ctx->src_crop.top = 0;
+       ctx->src_crop.width = ctx->src_fmt.width;
+       ctx->src_crop.left = ctx->src_fmt.height;
+
+       INIT_LIST_HEAD(&ctx->dst_queue);
+       INIT_LIST_HEAD(&ctx->list);
+
+       ctx->run.vp8e.reg_params = rk3288_vpu_vp8e_get_dummy_params();
+       ctx->run_ops = &dummy_encode_run_ops;
+
+       ctx->run.dst = devm_kzalloc(dev->dev, sizeof(*ctx->run.dst),
+                                       GFP_KERNEL);
+       if (!ctx->run.dst)
+               return -ENOMEM;
+
+       ret = rk3288_vpu_aux_buf_alloc(dev, &ctx->run.priv_src,
+                                       RK3288_HW_PARAMS_SIZE);
+       if (ret)
+               return ret;
+
+       ret = rk3288_vpu_aux_buf_alloc(dev, &ctx->run.priv_dst,
+                                       RK3288_RET_PARAMS_SIZE);
+       if (ret)
+               goto err_free_priv_src;
+
+       for (i = 0; i < ctx->src_fmt.num_planes; ++i) {
+               ret = rk3288_vpu_aux_buf_alloc(dev, &dev->dummy_encode_src[i],
+                                       ctx->src_fmt.plane_fmt[i].sizeimage);
+               if (ret)
+                       goto err_free_src;
+
+               memset(dev->dummy_encode_src[i].cpu, 0,
+                       dev->dummy_encode_src[i].size);
+       }
+
+       ret = rk3288_vpu_aux_buf_alloc(dev, &dev->dummy_encode_dst,
+                                       ctx->dst_fmt.plane_fmt[0].sizeimage);
+       if (ret)
+               goto err_free_src;
+
+       memset(dev->dummy_encode_dst.cpu, 0, dev->dummy_encode_dst.size);
+
+       ret = rk3288_vpu_init(ctx);
+       if (ret)
+               goto err_free_dst;
+
+       dev->dummy_encode_ctx = ctx;
+
+       return 0;
+
+err_free_dst:
+       rk3288_vpu_aux_buf_free(dev, &dev->dummy_encode_dst);
+err_free_src:
+       for (i = 0; i < ctx->src_fmt.num_planes; ++i)
+               if (dev->dummy_encode_src[i].cpu)
+                       rk3288_vpu_aux_buf_free(dev, &dev->dummy_encode_src[i]);
+       rk3288_vpu_aux_buf_free(dev, &ctx->run.priv_dst);
+err_free_priv_src:
+       rk3288_vpu_aux_buf_free(dev, &ctx->run.priv_src);
+
+       return ret;
+}
+
+void rk3288_vpu_enc_free_dummy_ctx(struct rk3288_vpu_dev *dev)
+{
+       struct rk3288_vpu_ctx *ctx = dev->dummy_encode_ctx;
+       int i;
+
+       rk3288_vpu_deinit(ctx);
+
+       for (i = 0; i < ctx->src_fmt.num_planes; ++i)
+               rk3288_vpu_aux_buf_free(dev, &dev->dummy_encode_src[i]);
+       rk3288_vpu_aux_buf_free(dev, &dev->dummy_encode_dst);
+       rk3288_vpu_aux_buf_free(dev, &ctx->run.priv_src);
+       rk3288_vpu_aux_buf_free(dev, &ctx->run.priv_dst);
+}