[media] rename drivers/media/video as .../platform

The remaining drivers are mostly platform drivers. Name the
dir to reflect it.

It makes sense to latter break it into a few other dirs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1849 insertions, 0 deletions

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
new file mode 100644
index 000000000000..0d6e0a095607
--- /dev/null
+++ b/drivers/media/platform/coda.c
@@ -0,0 +1,1849 @@
+/*
+ * Coda multi-standard codec IP
+ *
+ * Copyright (C) 2012 Vista Silicon S.L.
+ *    Javier Martin, <javier.martin@vista-silicon.com>
+ *    Xavier Duret
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <linux/of.h>
+
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "coda.h"
+
+#define CODA_NAME		"coda"
+
+#define CODA_MAX_INSTANCES	4
+
+#define CODA_FMO_BUF_SIZE	32
+#define CODADX6_WORK_BUF_SIZE	(288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
+#define CODA7_WORK_BUF_SIZE	(512 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
+#define CODA_PARA_BUF_SIZE	(10 * 1024)
+#define CODA_ISRAM_SIZE	(2048 * 2)
+
+#define CODA_OUTPUT_BUFS	4
+#define CODA_CAPTURE_BUFS	2
+
+#define MAX_W		720
+#define MAX_H		576
+#define CODA_MAX_FRAME_SIZE	0x90000
+#define FMO_SLICE_SAVE_BUF_SIZE         (32)
+#define CODA_DEFAULT_GAMMA		4096
+
+#define MIN_W 176
+#define MIN_H 144
+#define MAX_W 720
+#define MAX_H 576
+
+#define S_ALIGN		1 /* multiple of 2 */
+#define W_ALIGN		1 /* multiple of 2 */
+#define H_ALIGN		1 /* multiple of 2 */
+
+#define fh_to_ctx(__fh)	container_of(__fh, struct coda_ctx, fh)
+
+static int coda_debug;
+module_param(coda_debug, int, 0);
+MODULE_PARM_DESC(coda_debug, "Debug level (0-1)");
+
+enum {
+	V4L2_M2M_SRC = 0,
+	V4L2_M2M_DST = 1,
+};
+
+enum coda_fmt_type {
+	CODA_FMT_ENC,
+	CODA_FMT_RAW,
+};
+
+enum coda_inst_type {
+	CODA_INST_ENCODER,
+	CODA_INST_DECODER,
+};
+
+enum coda_product {
+	CODA_DX6 = 0xf001,
+};
+
+struct coda_fmt {
+	char *name;
+	u32 fourcc;
+	enum coda_fmt_type type;
+};
+
+struct coda_devtype {
+	char			*firmware;
+	enum coda_product	product;
+	struct coda_fmt		*formats;
+	unsigned int		num_formats;
+	size_t			workbuf_size;
+};
+
+/* Per-queue, driver-specific private data */
+struct coda_q_data {
+	unsigned int		width;
+	unsigned int		height;
+	unsigned int		sizeimage;
+	struct coda_fmt	*fmt;
+};
+
+struct coda_aux_buf {
+	void			*vaddr;
+	dma_addr_t		paddr;
+	u32			size;
+};
+
+struct coda_dev {
+	struct v4l2_device	v4l2_dev;
+	struct video_device	vfd;
+	struct platform_device	*plat_dev;
+	struct coda_devtype	*devtype;
+
+	void __iomem		*regs_base;
+	struct clk		*clk_per;
+	struct clk		*clk_ahb;
+
+	struct coda_aux_buf	codebuf;
+	struct coda_aux_buf	workbuf;
+
+	spinlock_t		irqlock;
+	struct mutex		dev_mutex;
+	struct v4l2_m2m_dev	*m2m_dev;
+	struct vb2_alloc_ctx	*alloc_ctx;
+	int			instances;
+};
+
+struct coda_params {
+	u8			h264_intra_qp;
+	u8			h264_inter_qp;
+	u8			mpeg4_intra_qp;
+	u8			mpeg4_inter_qp;
+	u8			gop_size;
+	int			codec_mode;
+	enum v4l2_mpeg_video_multi_slice_mode slice_mode;
+	u32			framerate;
+	u16			bitrate;
+	u32			slice_max_mb;
+};
+
+struct coda_ctx {
+	struct coda_dev			*dev;
+	int				aborting;
+	int				rawstreamon;
+	int				compstreamon;
+	u32				isequence;
+	struct coda_q_data		q_data[2];
+	enum coda_inst_type		inst_type;
+	enum v4l2_colorspace		colorspace;
+	struct coda_params		params;
+	struct v4l2_m2m_ctx		*m2m_ctx;
+	struct v4l2_ctrl_handler	ctrls;
+	struct v4l2_fh			fh;
+	struct vb2_buffer		*reference;
+	int				gopcounter;
+	char				vpu_header[3][64];
+	int				vpu_header_size[3];
+	struct coda_aux_buf		parabuf;
+	int				idx;
+};
+
+static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg)
+{
+	v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+		 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
+	writel(data, dev->regs_base + reg);
+}
+
+static inline unsigned int coda_read(struct coda_dev *dev, u32 reg)
+{
+	u32 data;
+	data = readl(dev->regs_base + reg);
+	v4l2_dbg(1, coda_debug, &dev->v4l2_dev,
+		 "%s: data=0x%x, reg=0x%x\n", __func__, data, reg);
+	return data;
+}
+
+static inline unsigned long coda_isbusy(struct coda_dev *dev)
+{
+	return coda_read(dev, CODA_REG_BIT_BUSY);
+}
+
+static inline int coda_is_initialized(struct coda_dev *dev)
+{
+	return (coda_read(dev, CODA_REG_BIT_CUR_PC) != 0);
+}
+
+static int coda_wait_timeout(struct coda_dev *dev)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
+
+	while (coda_isbusy(dev)) {
+		if (time_after(jiffies, timeout))
+			return -ETIMEDOUT;
+	}
+	return 0;
+}
+
+static void coda_command_async(struct coda_ctx *ctx, int cmd)
+{
+	struct coda_dev *dev = ctx->dev;
+	coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY);
+
+	coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX);
+	coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD);
+	coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND);
+}
+
+static int coda_command_sync(struct coda_ctx *ctx, int cmd)
+{
+	struct coda_dev *dev = ctx->dev;
+
+	coda_command_async(ctx, cmd);
+	return coda_wait_timeout(dev);
+}
+
+static struct coda_q_data *get_q_data(struct coda_ctx *ctx,
+					 enum v4l2_buf_type type)
+{
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+		return &(ctx->q_data[V4L2_M2M_SRC]);
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		return &(ctx->q_data[V4L2_M2M_DST]);
+	default:
+		BUG();
+	}
+	return NULL;
+}
+
+/*
+ * Add one array of supported formats for each version of Coda:
+ *  i.MX27 -> codadx6
+ *  i.MX51 -> coda7
+ *  i.MX6  -> coda960
+ */
+static struct coda_fmt codadx6_formats[] = {
+	{
+		.name = "YUV 4:2:0 Planar",
+		.fourcc = V4L2_PIX_FMT_YUV420,
+		.type = CODA_FMT_RAW,
+	},
+	{
+		.name = "H264 Encoded Stream",
+		.fourcc = V4L2_PIX_FMT_H264,
+		.type = CODA_FMT_ENC,
+	},
+	{
+		.name = "MPEG4 Encoded Stream",
+		.fourcc = V4L2_PIX_FMT_MPEG4,
+		.type = CODA_FMT_ENC,
+	},
+};
+
+static struct coda_fmt *find_format(struct coda_dev *dev, struct v4l2_format *f)
+{
+	struct coda_fmt *formats = dev->devtype->formats;
+	int num_formats = dev->devtype->num_formats;
+	unsigned int k;
+
+	for (k = 0; k < num_formats; k++) {
+		if (formats[k].fourcc == f->fmt.pix.pixelformat)
+			break;
+	}
+
+	if (k == num_formats)
+		return NULL;
+
+	return &formats[k];
+}
+
+/*
+ * V4L2 ioctl() operations.
+ */
+static int vidioc_querycap(struct file *file, void *priv,
+			   struct v4l2_capability *cap)
+{
+	strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
+	strlcpy(cap->card, CODA_NAME, sizeof(cap->card));
+	strlcpy(cap->bus_info, CODA_NAME, sizeof(cap->bus_info));
+	cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT
+				| V4L2_CAP_STREAMING;
+	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+
+	return 0;
+}
+
+static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
+			enum coda_fmt_type type)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+	struct coda_dev *dev = ctx->dev;
+	struct coda_fmt *formats = dev->devtype->formats;
+	struct coda_fmt *fmt;
+	int num_formats = dev->devtype->num_formats;
+	int i, num = 0;
+
+	for (i = 0; i < num_formats; i++) {
+		if (formats[i].type == type) {
+			if (num == f->index)
+				break;
+			++num;
+		}
+	}
+
+	if (i < num_formats) {
+		fmt = &formats[i];
+		strlcpy(f->description, fmt->name, sizeof(f->description));
+		f->pixelformat = fmt->fourcc;
+		return 0;
+	}
+
+	/* Format not found */
+	return -EINVAL;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+				   struct v4l2_fmtdesc *f)
+{
+	return enum_fmt(priv, f, CODA_FMT_ENC);
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
+				   struct v4l2_fmtdesc *f)
+{
+	return enum_fmt(priv, f, CODA_FMT_RAW);
+}
+
+static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct vb2_queue *vq;
+	struct coda_q_data *q_data;
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = get_q_data(ctx, f->type);
+
+	f->fmt.pix.field	= V4L2_FIELD_NONE;
+	f->fmt.pix.pixelformat	= q_data->fmt->fourcc;
+	f->fmt.pix.width	= q_data->width;
+	f->fmt.pix.height	= q_data->height;
+	if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420)
+		f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2);
+	else /* encoded formats h.264/mpeg4 */
+		f->fmt.pix.bytesperline = 0;
+
+	f->fmt.pix.sizeimage	= q_data->sizeimage;
+	f->fmt.pix.colorspace	= ctx->colorspace;
+
+	return 0;
+}
+
+static int vidioc_try_fmt(struct coda_dev *dev, struct v4l2_format *f)
+{
+	enum v4l2_field field;
+
+	field = f->fmt.pix.field;
+	if (field == V4L2_FIELD_ANY)
+		field = V4L2_FIELD_NONE;
+	else if (V4L2_FIELD_NONE != field)
+		return -EINVAL;
+
+	/* V4L2 specification suggests the driver corrects the format struct
+	 * if any of the dimensions is unsupported */
+	f->fmt.pix.field = field;
+
+	if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) {
+		v4l_bound_align_image(&f->fmt.pix.width, MIN_W, MAX_W,
+				      W_ALIGN, &f->fmt.pix.height,
+				      MIN_H, MAX_H, H_ALIGN, S_ALIGN);
+		f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2);
+		f->fmt.pix.sizeimage = f->fmt.pix.height *
+					f->fmt.pix.bytesperline;
+	} else { /*encoded formats h.264/mpeg4 */
+		f->fmt.pix.bytesperline = 0;
+		f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
+	}
+
+	return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	int ret;
+	struct coda_fmt *fmt;
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	fmt = find_format(ctx->dev, f);
+	/*
+	 * Since decoding support is not implemented yet do not allow
+	 * CODA_FMT_RAW formats in the capture interface.
+	 */
+	if (!fmt || !(fmt->type == CODA_FMT_ENC))
+		f->fmt.pix.pixelformat = V4L2_PIX_FMT_H264;
+
+	f->fmt.pix.colorspace = ctx->colorspace;
+
+	ret = vidioc_try_fmt(ctx->dev, f);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
+				  struct v4l2_format *f)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+	struct coda_fmt *fmt;
+	int ret;
+
+	fmt = find_format(ctx->dev, f);
+	/*
+	 * Since decoding support is not implemented yet do not allow
+	 * CODA_FMT formats in the capture interface.
+	 */
+	if (!fmt || !(fmt->type == CODA_FMT_RAW))
+		f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420;
+
+	if (!f->fmt.pix.colorspace)
+		f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
+
+	ret = vidioc_try_fmt(ctx->dev, f);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
+{
+	struct coda_q_data *q_data;
+	struct vb2_queue *vq;
+	int ret;
+
+	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = get_q_data(ctx, f->type);
+	if (!q_data)
+		return -EINVAL;
+
+	if (vb2_is_busy(vq)) {
+		v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__);
+		return -EBUSY;
+	}
+
+	ret = vidioc_try_fmt(ctx->dev, f);
+	if (ret)
+		return ret;
+
+	q_data->fmt = find_format(ctx->dev, f);
+	q_data->width = f->fmt.pix.width;
+	q_data->height = f->fmt.pix.height;
+	if (q_data->fmt->fourcc == V4L2_PIX_FMT_YUV420) {
+		q_data->sizeimage = q_data->width * q_data->height * 3 / 2;
+	} else { /* encoded format h.264/mpeg-4 */
+		q_data->sizeimage = CODA_MAX_FRAME_SIZE;
+	}
+
+	v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+		"Setting format for type %d, wxh: %dx%d, fmt: %d\n",
+		f->type, q_data->width, q_data->height, q_data->fmt->fourcc);
+
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	int ret;
+
+	ret = vidioc_try_fmt_vid_cap(file, priv, f);
+	if (ret)
+		return ret;
+
+	return vidioc_s_fmt(fh_to_ctx(priv), f);
+}
+
+static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+	int ret;
+
+	ret = vidioc_try_fmt_vid_out(file, priv, f);
+	if (ret)
+		return ret;
+
+	ret = vidioc_s_fmt(fh_to_ctx(priv), f);
+	if (ret)
+		ctx->colorspace = f->fmt.pix.colorspace;
+
+	return ret;
+}
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+			  struct v4l2_requestbuffers *reqbufs)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+			   struct v4l2_buffer *buf)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+			   enum v4l2_buf_type type)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+			    enum v4l2_buf_type type)
+{
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
+	return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+static const struct v4l2_ioctl_ops coda_ioctl_ops = {
+	.vidioc_querycap	= vidioc_querycap,
+
+	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap	= vidioc_g_fmt,
+	.vidioc_try_fmt_vid_cap	= vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap	= vidioc_s_fmt_vid_cap,
+
+	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out	= vidioc_g_fmt,
+	.vidioc_try_fmt_vid_out	= vidioc_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out	= vidioc_s_fmt_vid_out,
+
+	.vidioc_reqbufs		= vidioc_reqbufs,
+	.vidioc_querybuf	= vidioc_querybuf,
+
+	.vidioc_qbuf		= vidioc_qbuf,
+	.vidioc_dqbuf		= vidioc_dqbuf,
+
+	.vidioc_streamon	= vidioc_streamon,
+	.vidioc_streamoff	= vidioc_streamoff,
+};
+
+/*
+ * Mem-to-mem operations.
+ */
+static void coda_device_run(void *m2m_priv)
+{
+	struct coda_ctx *ctx = m2m_priv;
+	struct coda_q_data *q_data_src, *q_data_dst;
+	struct vb2_buffer *src_buf, *dst_buf;
+	struct coda_dev *dev = ctx->dev;
+	int force_ipicture;
+	int quant_param = 0;
+	u32 picture_y, picture_cb, picture_cr;
+	u32 pic_stream_buffer_addr, pic_stream_buffer_size;
+	u32 dst_fourcc;
+
+	src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+	q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	dst_fourcc = q_data_dst->fmt->fourcc;
+
+	src_buf->v4l2_buf.sequence = ctx->isequence;
+	dst_buf->v4l2_buf.sequence = ctx->isequence;
+	ctx->isequence++;
+
+	/*
+	 * Workaround coda firmware BUG that only marks the first
+	 * frame as IDR. This is a problem for some decoders that can't
+	 * recover when a frame is lost.
+	 */
+	if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) {
+		src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
+		src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME;
+	} else {
+		src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
+		src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
+	}
+
+	/*
+	 * Copy headers at the beginning of the first frame for H.264 only.
+	 * In MPEG4 they are already copied by the coda.
+	 */
+	if (src_buf->v4l2_buf.sequence == 0) {
+		pic_stream_buffer_addr =
+			vb2_dma_contig_plane_dma_addr(dst_buf, 0) +
+			ctx->vpu_header_size[0] +
+			ctx->vpu_header_size[1] +
+			ctx->vpu_header_size[2];
+		pic_stream_buffer_size = CODA_MAX_FRAME_SIZE -
+			ctx->vpu_header_size[0] -
+			ctx->vpu_header_size[1] -
+			ctx->vpu_header_size[2];
+		memcpy(vb2_plane_vaddr(dst_buf, 0),
+		       &ctx->vpu_header[0][0], ctx->vpu_header_size[0]);
+		memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0],
+		       &ctx->vpu_header[1][0], ctx->vpu_header_size[1]);
+		memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] +
+			ctx->vpu_header_size[1], &ctx->vpu_header[2][0],
+			ctx->vpu_header_size[2]);
+	} else {
+		pic_stream_buffer_addr =
+			vb2_dma_contig_plane_dma_addr(dst_buf, 0);
+		pic_stream_buffer_size = CODA_MAX_FRAME_SIZE;
+	}
+
+	if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
+		force_ipicture = 1;
+		switch (dst_fourcc) {
+		case V4L2_PIX_FMT_H264:
+			quant_param = ctx->params.h264_intra_qp;
+			break;
+		case V4L2_PIX_FMT_MPEG4:
+			quant_param = ctx->params.mpeg4_intra_qp;
+			break;
+		default:
+			v4l2_warn(&ctx->dev->v4l2_dev,
+				"cannot set intra qp, fmt not supported\n");
+			break;
+		}
+	} else {
+		force_ipicture = 0;
+		switch (dst_fourcc) {
+		case V4L2_PIX_FMT_H264:
+			quant_param = ctx->params.h264_inter_qp;
+			break;
+		case V4L2_PIX_FMT_MPEG4:
+			quant_param = ctx->params.mpeg4_inter_qp;
+			break;
+		default:
+			v4l2_warn(&ctx->dev->v4l2_dev,
+				"cannot set inter qp, fmt not supported\n");
+			break;
+		}
+	}
+
+	/* submit */
+	coda_write(dev, 0, CODA_CMD_ENC_PIC_ROT_MODE);
+	coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS);
+
+
+	picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0);
+	picture_cb = picture_y + q_data_src->width * q_data_src->height;
+	picture_cr = picture_cb + q_data_src->width / 2 *
+			q_data_src->height / 2;
+
+	coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y);
+	coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB);
+	coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR);
+	coda_write(dev, force_ipicture << 1 & 0x2,
+		   CODA_CMD_ENC_PIC_OPTION);
+
+	coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START);
+	coda_write(dev, pic_stream_buffer_size / 1024,
+		   CODA_CMD_ENC_PIC_BB_SIZE);
+	coda_command_async(ctx, CODA_COMMAND_PIC_RUN);
+}
+
+static int coda_job_ready(void *m2m_priv)
+{
+	struct coda_ctx *ctx = m2m_priv;
+
+	/*
+	 * For both 'P' and 'key' frame cases 1 picture
+	 * and 1 frame are needed.
+	 */
+	if (!v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) ||
+		!v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) {
+		v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+			 "not ready: not enough video buffers.\n");
+		return 0;
+	}
+
+	/* For P frames a reference picture is needed too */
+	if ((ctx->gopcounter != (ctx->params.gop_size - 1)) &&
+	   !ctx->reference) {
+		v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+			 "not ready: reference picture not available.\n");
+		return 0;
+	}
+
+	if (coda_isbusy(ctx->dev)) {
+		v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+			 "not ready: coda is still busy.\n");
+		return 0;
+	}
+
+	v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+			"job ready\n");
+	return 1;
+}
+
+static void coda_job_abort(void *priv)
+{
+	struct coda_ctx *ctx = priv;
+	struct coda_dev *dev = ctx->dev;
+
+	ctx->aborting = 1;
+
+	v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+		 "Aborting task\n");
+
+	v4l2_m2m_job_finish(dev->m2m_dev, ctx->m2m_ctx);
+}
+
+static void coda_lock(void *m2m_priv)
+{
+	struct coda_ctx *ctx = m2m_priv;
+	struct coda_dev *pcdev = ctx->dev;
+	mutex_lock(&pcdev->dev_mutex);
+}
+
+static void coda_unlock(void *m2m_priv)
+{
+	struct coda_ctx *ctx = m2m_priv;
+	struct coda_dev *pcdev = ctx->dev;
+	mutex_unlock(&pcdev->dev_mutex);
+}
+
+static struct v4l2_m2m_ops coda_m2m_ops = {
+	.device_run	= coda_device_run,
+	.job_ready	= coda_job_ready,
+	.job_abort	= coda_job_abort,
+	.lock		= coda_lock,
+	.unlock		= coda_unlock,
+};
+
+static void set_default_params(struct coda_ctx *ctx)
+{
+	struct coda_dev *dev = ctx->dev;
+
+	ctx->params.codec_mode = CODA_MODE_INVALID;
+	ctx->colorspace = V4L2_COLORSPACE_REC709;
+	ctx->params.framerate = 30;
+	ctx->reference = NULL;
+	ctx->aborting = 0;
+
+	/* Default formats for output and input queues */
+	ctx->q_data[V4L2_M2M_SRC].fmt = &dev->devtype->formats[0];
+	ctx->q_data[V4L2_M2M_DST].fmt = &dev->devtype->formats[1];
+	ctx->q_data[V4L2_M2M_SRC].width = MAX_W;
+	ctx->q_data[V4L2_M2M_SRC].height = MAX_H;
+	ctx->q_data[V4L2_M2M_SRC].sizeimage = (MAX_W * MAX_H * 3) / 2;
+	ctx->q_data[V4L2_M2M_DST].width = MAX_W;
+	ctx->q_data[V4L2_M2M_DST].height = MAX_H;
+	ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE;
+}
+
+/*
+ * Queue operations
+ */
+static int coda_queue_setup(struct vb2_queue *vq,
+				const struct v4l2_format *fmt,
+				unsigned int *nbuffers, unsigned int *nplanes,
+				unsigned int sizes[], void *alloc_ctxs[])
+{
+	struct coda_ctx *ctx = vb2_get_drv_priv(vq);
+	unsigned int size;
+
+	if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+		*nbuffers = CODA_OUTPUT_BUFS;
+		if (fmt)
+			size = fmt->fmt.pix.width *
+				fmt->fmt.pix.height * 3 / 2;
+		else
+			size = MAX_W *
+				MAX_H * 3 / 2;
+	} else {
+		*nbuffers = CODA_CAPTURE_BUFS;
+		size = CODA_MAX_FRAME_SIZE;
+	}
+
+	*nplanes = 1;
+	sizes[0] = size;
+
+	alloc_ctxs[0] = ctx->dev->alloc_ctx;
+
+	v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev,
+		 "get %d buffer(s) of size %d each.\n", *nbuffers, size);
+
+	return 0;
+}
+
+static int coda_buf_prepare(struct vb2_buffer *vb)
+{
+	struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct coda_q_data *q_data;
+
+	q_data = get_q_data(ctx, vb->vb2_queue->type);
+
+	if (vb2_plane_size(vb, 0) < q_data->sizeimage) {
+		v4l2_warn(&ctx->dev->v4l2_dev,
+			  "%s data will not fit into plane (%lu < %lu)\n",
+			  __func__, vb2_plane_size(vb, 0),
+			  (long)q_data->sizeimage);
+		return -EINVAL;
+	}
+
+	vb2_set_plane_payload(vb, 0, q_data->sizeimage);
+
+	return 0;
+}
+
+static void coda_buf_queue(struct vb2_buffer *vb)
+{
+	struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
+}
+
+static void coda_wait_prepare(struct vb2_queue *q)
+{
+	struct coda_ctx *ctx = vb2_get_drv_priv(q);
+	coda_unlock(ctx);
+}
+
+static void coda_wait_finish(struct vb2_queue *q)
+{
+	struct coda_ctx *ctx = vb2_get_drv_priv(q);
+	coda_lock(ctx);
+}
+
+static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct coda_ctx *ctx = vb2_get_drv_priv(q);
+	struct v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev;
+	u32 bitstream_buf, bitstream_size;
+	struct coda_dev *dev = ctx->dev;
+	struct coda_q_data *q_data_src, *q_data_dst;
+	u32 dst_fourcc;
+	struct vb2_buffer *buf;
+	struct vb2_queue *src_vq;
+	u32 value;
+	int i = 0;
+
+	if (count < 1)
+		return -EINVAL;
+
+	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		ctx->rawstreamon = 1;
+	else
+		ctx->compstreamon = 1;
+
+	/* Don't start the coda unless both queues are on */
+	if (!(ctx->rawstreamon & ctx->compstreamon))
+		return 0;
+
+	ctx->gopcounter = ctx->params.gop_size - 1;
+
+	q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+	bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0);
+	q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);
+	bitstream_size = q_data_dst->sizeimage;
+	dst_fourcc = q_data_dst->fmt->fourcc;
+
+	/* Find out whether coda must encode or decode */
+	if (q_data_src->fmt->type == CODA_FMT_RAW &&
+	    q_data_dst->fmt->type == CODA_FMT_ENC) {
+		ctx->inst_type = CODA_INST_ENCODER;
+	} else if (q_data_src->fmt->type == CODA_FMT_ENC &&
+		   q_data_dst->fmt->type == CODA_FMT_RAW) {
+		ctx->inst_type = CODA_INST_DECODER;
+		v4l2_err(v4l2_dev, "decoding not supported.\n");
+		return -EINVAL;
+	} else {
+		v4l2_err(v4l2_dev, "couldn't tell instance type.\n");
+		return -EINVAL;
+	}
+
+	if (!coda_is_initialized(dev)) {
+		v4l2_err(v4l2_dev, "coda is not initialized.\n");
+		return -EFAULT;
+	}
+	coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR);
+	coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->idx));
+	coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->idx));
+	switch (dev->devtype->product) {
+	case CODA_DX6:
+		coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN |
+			CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
+		break;
+	default:
+		coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN |
+			CODA7_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL);
+	}
+
+	/* Configure the coda */
+	coda_write(dev, 0xffff4c00, CODA_REG_BIT_SEARCH_RAM_BASE_ADDR);
+
+	/* Could set rotation here if needed */
+	switch (dev->devtype->product) {
+	case CODA_DX6:
+		value = (q_data_src->width & CODADX6_PICWIDTH_MASK) << CODADX6_PICWIDTH_OFFSET;
+		break;
+	default:
+		value = (q_data_src->width & CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET;
+	}
+	value |= (q_data_src->height & CODA_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET;
+	coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE);
+	coda_write(dev, ctx->params.framerate,
+		   CODA_CMD_ENC_SEQ_SRC_F_RATE);
+
+	switch (dst_fourcc) {
+	case V4L2_PIX_FMT_MPEG4:
+		if (dev->devtype->product == CODA_DX6)
+			ctx->params.codec_mode = CODADX6_MODE_ENCODE_MP4;
+		else
+			ctx->params.codec_mode = CODA7_MODE_ENCODE_MP4;
+
+		coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD);
+		coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA);
+		break;
+	case V4L2_PIX_FMT_H264:
+		if (dev->devtype->product == CODA_DX6)
+			ctx->params.codec_mode = CODADX6_MODE_ENCODE_H264;
+		else
+			ctx->params.codec_mode = CODA7_MODE_ENCODE_H264;
+
+		coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD);
+		coda_write(dev, 0, CODA_CMD_ENC_SEQ_264_PARA);
+		break;
+	default:
+		v4l2_err(v4l2_dev,
+			 "dst format (0x%08x) invalid.\n", dst_fourcc);
+		return -EINVAL;
+	}
+
+	value  = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET;
+	value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET;
+	if (ctx->params.slice_mode == V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB)
+		value |=  1 & CODA_SLICING_MODE_MASK;
+	coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE);
+	value  =  ctx->params.gop_size & CODA_GOP_SIZE_MASK;
+	coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE);
+
+	if (ctx->params.bitrate) {
+		/* Rate control enabled */
+		value = (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET;
+		value |=  1 & CODA_RATECONTROL_ENABLE_MASK;
+	} else {
+		value = 0;
+	}
+	coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA);
+
+	coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE);
+	coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH);
+
+	coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START);
+	coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE);
+
+	/* set default gamma */
+	value = (CODA_DEFAULT_GAMMA & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET;
+	coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_GAMMA);
+
+	value  = (CODA_DEFAULT_GAMMA > 0) << CODA_OPTION_GAMMA_OFFSET;
+	value |= (0 & CODA_OPTION_SLICEREPORT_MASK) << CODA_OPTION_SLICEREPORT_OFFSET;
+	coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION);
+
+	if (dst_fourcc == V4L2_PIX_FMT_H264) {
+		value  = (FMO_SLICE_SAVE_BUF_SIZE << 7);
+		value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET;
+		value |=  0 & CODA_FMOPARAM_SLICENUM_MASK;
+		coda_write(dev, value, CODA_CMD_ENC_SEQ_FMO);
+	}
+
+	if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) {
+		v4l2_err(v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0)
+		return -EFAULT;
+
+	/*
+	 * Walk the src buffer list and let the codec know the
+	 * addresses of the pictures.
+	 */
+	src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT);
+	for (i = 0; i < src_vq->num_buffers; i++) {
+		u32 *p;
+
+		buf = src_vq->bufs[i];
+		p = ctx->parabuf.vaddr;
+
+		p[i * 3] = vb2_dma_contig_plane_dma_addr(buf, 0);
+		p[i * 3 + 1] = p[i * 3] + q_data_src->width *
+				q_data_src->height;
+		p[i * 3 + 2] = p[i * 3 + 1] + q_data_src->width / 2 *
+				q_data_src->height / 2;
+	}
+
+	coda_write(dev, src_vq->num_buffers, CODA_CMD_SET_FRAME_BUF_NUM);
+	coda_write(dev, q_data_src->width, CODA_CMD_SET_FRAME_BUF_STRIDE);
+	if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) {
+		v4l2_err(v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	/* Save stream headers */
+	buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+	switch (dst_fourcc) {
+	case V4L2_PIX_FMT_H264:
+		/*
+		 * Get SPS in the first frame and copy it to an
+		 * intermediate buffer.
+		 */
+		coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+		coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+		coda_write(dev, CODA_HEADER_H264_SPS, CODA_CMD_ENC_HEADER_CODE);
+		if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
+			v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
+			return -ETIMEDOUT;
+		}
+		ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
+				coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+		memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0),
+		       ctx->vpu_header_size[0]);
+
+		/*
+		 * Get PPS in the first frame and copy it to an
+		 * intermediate buffer.
+		 */
+		coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+		coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+		coda_write(dev, CODA_HEADER_H264_PPS, CODA_CMD_ENC_HEADER_CODE);
+		if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
+			v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
+			return -ETIMEDOUT;
+		}
+		ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
+				coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+		memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0),
+		       ctx->vpu_header_size[1]);
+		ctx->vpu_header_size[2] = 0;
+		break;
+	case V4L2_PIX_FMT_MPEG4:
+		/*
+		 * Get VOS in the first frame and copy it to an
+		 * intermediate buffer
+		 */
+		coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+		coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+		coda_write(dev, CODA_HEADER_MP4V_VOS, CODA_CMD_ENC_HEADER_CODE);
+		if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
+			v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n");
+			return -ETIMEDOUT;
+		}
+		ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
+				coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+		memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0),
+		       ctx->vpu_header_size[0]);
+
+		coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START);
+		coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE);
+		coda_write(dev, CODA_HEADER_MP4V_VIS, CODA_CMD_ENC_HEADER_CODE);
+		if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) {
+			v4l2_err(v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n");
+			return -ETIMEDOUT;
+		}
+		ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) -
+				coda_read(dev, CODA_CMD_ENC_HEADER_BB_START);
+		memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0),
+		       ctx->vpu_header_size[1]);
+
+		coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA