[v2,3/8] media: vidc: decoder: add video decoder files

Message ID 1473248229-5540-4-git-send-email-stanimir.varbanov@linaro.org
State New
Headers show

Commit Message

Stanimir Varbanov Sept. 7, 2016, 11:37 a.m.
This consists of video decoder implementation plus decoder
controls.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>

---
 drivers/media/platform/qcom/vidc/vdec.c       | 1091 +++++++++++++++++++++++++
 drivers/media/platform/qcom/vidc/vdec.h       |   29 +
 drivers/media/platform/qcom/vidc/vdec_ctrls.c |  200 +++++
 drivers/media/platform/qcom/vidc/vdec_ctrls.h |   21 +
 4 files changed, 1341 insertions(+)
 create mode 100644 drivers/media/platform/qcom/vidc/vdec.c
 create mode 100644 drivers/media/platform/qcom/vidc/vdec.h
 create mode 100644 drivers/media/platform/qcom/vidc/vdec_ctrls.c
 create mode 100644 drivers/media/platform/qcom/vidc/vdec_ctrls.h

-- 
2.7.4

Comments

Stanimir Varbanov Nov. 3, 2016, 12:49 p.m. | #1
Hi,

On 11/03/2016 12:55 PM, Hans Verkuil wrote:
> On 03/11/16 11:45, Stanimir Varbanov wrote:

>> Hi Hans,

>>

>> On 09/19/2016 01:04 PM, Hans Verkuil wrote:

>>> On 09/07/2016 01:37 PM, Stanimir Varbanov wrote:

>>>> This consists of video decoder implementation plus decoder

>>>> controls.

>>>>

>>>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>

>>>> ---

>>>>  drivers/media/platform/qcom/vidc/vdec.c       | 1091

>>>> +++++++++++++++++++++++++

>>>>  drivers/media/platform/qcom/vidc/vdec.h       |   29 +

>>>>  drivers/media/platform/qcom/vidc/vdec_ctrls.c |  200 +++++

>>>>  drivers/media/platform/qcom/vidc/vdec_ctrls.h |   21 +

>>>>  4 files changed, 1341 insertions(+)

>>>>  create mode 100644 drivers/media/platform/qcom/vidc/vdec.c

>>>>  create mode 100644 drivers/media/platform/qcom/vidc/vdec.h

>>>>  create mode 100644 drivers/media/platform/qcom/vidc/vdec_ctrls.c

>>>>  create mode 100644 drivers/media/platform/qcom/vidc/vdec_ctrls.h

>>>>

>>

>> <cut>

>>

>>>> +

>>>> +static int

>>>> +vdec_g_selection(struct file *file, void *priv, struct

>>>> v4l2_selection *s)

>>>> +{

>>>> +    struct vidc_inst *inst = to_inst(file);

>>>> +

>>>> +    if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)

>>>> +        return -EINVAL;

>>>> +

>>>> +    switch (s->target) {

>>>> +    case V4L2_SEL_TGT_CROP_DEFAULT:

>>>> +    case V4L2_SEL_TGT_CROP_BOUNDS:

>>>> +    case V4L2_SEL_TGT_CROP:

>>>> +    case V4L2_SEL_TGT_COMPOSE_DEFAULT:

>>>> +    case V4L2_SEL_TGT_COMPOSE_BOUNDS:

>>>> +    case V4L2_SEL_TGT_COMPOSE:

>>>

>>> This is almost certainly wrong.

>>>

>>> For capture I would expect that you can do compose, but not crop.

>>>

>>> This would likely explain that v4l2-compliance thinks that the driver

>>> can

>>> scale:

>>>

>>>                 test Scaling: OK

>>>

>>

>> Maybe I need some help to implement correctly g_selection.

>>

>> Lets say that the resolution of the compressed stream is 1280x720, and

>> that resolution is set with s_fmt(OUTPUT queue), then I calculate the

>> output resolution which I will return by g_fmt(CAPTURE queue) and it

>> will be 1280x736 (hardware wants height to be multiple of 32 lines). So

>> the result will be 16 lines of vertical padding which should be exposed

>> to client (think of gstreamer v4l2videodec element) via g_crop

>> (g_selection) as 1280x720 because this is the actual image.

>>

>> So from what I understood while read Selection API, I need to support

>> only composing on CAPTURE queue, no scaling and no cropping.

>>

>> OUTPUT buffer type, data source

>> TGT_CROP_BOUNDS = TGT_CROP_DEFAULT = TGT_CROP = 1280x720

>> TGT_COMPOSE_BOUNDS = TGT_COMPOSE_DEFAULT = TGT_COMPOSE = 1280x720

> 

> The output buffer type doesn't do composition, only crop. So you shouldn't

> support the compose targets.


OK I tried to return EINVAL for compose targets for output buffer type
and the result is :

	test Cropping: OK
	test Composing: OK
	test Scaling: OK

Which is odd because now Scaling is supported.

> 

>>

>> CAPTURE buffer type, data sink

>> TGT_CROP_BOUNDS = TGT_CROP_DEFAULT = TGT_CROP = EINVAL

>> TGT_COMPOSE_BOUNDS = 1280x736

>> TGT_COMPOSE_DEFAULT = TGT_COMPOSE = 1280x720

> 

> This looks good.

> 

>>

>> With this logic in g_selection the output of v4l2-compliance test

>> application is:

>>     test Cropping: OK

>>     test Composing: OK

>>     test Scaling: OK (Not Supported)

>>

>> So why v4l2-compliance still thinks that the driver supports Cropping?

> 

> Hmm, v4l2-compliance could be improved. The problem is that it doesn't

> show for m2m devices for which side (capture or output) cropping, composing

> or scaling is supported. It does test both sides, but you can't tell from

> the output.

> 

> It's a bit confusing in this case.


OK I will incorporate the above g_selection behavior and send a new
version of the patches, I do not waste time on that. The drawback is
that this padding will be displayed as green bar on bottom of the
displayed image, although the gstreamer master branch now use
g_selection so probably it should be fine there.

> 

> Regards,

> 

>     Hans

> 

>>

>>>> +        break;

>>>> +    default:

>>>> +        return -EINVAL;

>>>> +    }

>>>> +

>>>> +    s->r.top = 0;

>>>> +    s->r.left = 0;

>>>> +    s->r.width = inst->out_width;

>>>> +    s->r.height = inst->out_height;

>>>> +

>>>> +    return 0;

>>>> +}

>>

>> <cut>

>>


-- 
regards,
Stan

Patch

diff --git a/drivers/media/platform/qcom/vidc/vdec.c b/drivers/media/platform/qcom/vidc/vdec.c
new file mode 100644
index 000000000000..433fe4f697d1
--- /dev/null
+++ b/drivers/media/platform/qcom/vidc/vdec.c
@@ -0,0 +1,1091 @@ 
+/*
+ * Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2016 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ctrls.h>
+#include <media/videobuf2-dma-sg.h>
+
+#include "core.h"
+#include "helpers.h"
+#include "vdec_ctrls.h"
+
+#define MACROBLOCKS_PER_PIXEL	(16 * 16)
+
+static u32 get_framesize_nv12(int plane, u32 height, u32 width)
+{
+	u32 y_stride, uv_stride, y_plane;
+	u32 y_sclines, uv_sclines, uv_plane;
+	u32 size;
+
+	y_stride = ALIGN(width, 128);
+	uv_stride = ALIGN(width, 128);
+	y_sclines = ALIGN(height, 32);
+	uv_sclines = ALIGN(((height + 1) >> 1), 16);
+
+	y_plane = y_stride * y_sclines;
+	uv_plane = uv_stride * uv_sclines + SZ_4K;
+	size = y_plane + uv_plane + SZ_8K;
+
+	return ALIGN(size, SZ_4K);
+}
+
+static u32 get_framesize_compressed(u32 mbs_per_frame)
+{
+	return ((mbs_per_frame * MACROBLOCKS_PER_PIXEL * 3 / 2) / 2) + 128;
+}
+
+static const struct vidc_format vdec_formats[] = {
+	{
+		.pixfmt = V4L2_PIX_FMT_NV12,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_MPEG4,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_MPEG2,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_H263,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_VC1_ANNEX_G,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_VC1_ANNEX_L,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_H264,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_VP8,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	}, {
+		.pixfmt = V4L2_PIX_FMT_XVID,
+		.num_planes = 1,
+		.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	},
+};
+
+static const struct vidc_format *find_format(u32 pixfmt, u32 type)
+{
+	const struct vidc_format *fmt = vdec_formats;
+	unsigned int size = ARRAY_SIZE(vdec_formats);
+	unsigned int i;
+
+	for (i = 0; i < size; i++) {
+		if (fmt[i].pixfmt == pixfmt)
+			break;
+	}
+
+	if (i == size || fmt[i].type != type)
+		return NULL;
+
+	return &fmt[i];
+}
+
+static const struct vidc_format *find_format_by_index(int index, u32 type)
+{
+	const struct vidc_format *fmt = vdec_formats;
+	unsigned int size = ARRAY_SIZE(vdec_formats);
+	int i, k = 0;
+
+	if (index < 0 || index > size)
+		return NULL;
+
+	for (i = 0; i < size; i++) {
+		if (fmt[i].type != type)
+			continue;
+		if (k == index)
+			break;
+		k++;
+	}
+
+	if (i == size)
+		return NULL;
+
+	return &fmt[i];
+}
+
+static int vdec_set_properties(struct vidc_inst *inst)
+{
+	struct vdec_controls *ctr = &inst->controls.dec;
+	struct hfi_core *hfi = &inst->core->hfi;
+	struct hfi_enable en = { .enable = 1 };
+	struct hfi_framerate frate;
+	u32 ptype;
+	int ret;
+
+	ptype = HFI_PROPERTY_PARAM_VDEC_CONTINUE_DATA_TRANSFER;
+	ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst, ptype, &en);
+	if (ret)
+		return ret;
+
+	ptype = HFI_PROPERTY_CONFIG_FRAME_RATE;
+	frate.buffer_type = HFI_BUFFER_INPUT;
+	frate.framerate = inst->fps * (1 << 16);
+
+	ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst, ptype, &frate);
+	if (ret)
+		return ret;
+
+	if (ctr->post_loop_deb_mode) {
+		ptype = HFI_PROPERTY_CONFIG_VDEC_POST_LOOP_DEBLOCKER;
+		en.enable = 1;
+		ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst, ptype,
+						    &en);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static const struct vidc_format *
+vdec_try_fmt_common(struct vidc_inst *inst, struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
+	struct v4l2_plane_pix_format *pfmt = pixmp->plane_fmt;
+	struct hfi_inst *hfi_inst = inst->hfi_inst;
+	const struct vidc_format *fmt;
+	unsigned int p;
+
+	memset(pfmt[0].reserved, 0, sizeof(pfmt[0].reserved));
+	memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
+
+	fmt = find_format(pixmp->pixelformat, f->type);
+	if (!fmt) {
+		if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+			pixmp->pixelformat = V4L2_PIX_FMT_NV12;
+		else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+			pixmp->pixelformat = V4L2_PIX_FMT_H264;
+		else
+			return NULL;
+		fmt = find_format(pixmp->pixelformat, f->type);
+		pixmp->width = 1280;
+		pixmp->height = 720;
+	}
+
+	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+		pixmp->height = ALIGN(pixmp->height, 32);
+
+	pixmp->width = clamp(pixmp->width, hfi_inst->width.min,
+			     hfi_inst->width.max);
+	pixmp->height = clamp(pixmp->height, hfi_inst->height.min,
+			      hfi_inst->height.max);
+	if (pixmp->field == V4L2_FIELD_ANY)
+		pixmp->field = V4L2_FIELD_NONE;
+	pixmp->num_planes = fmt->num_planes;
+	pixmp->flags = 0;
+
+	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+		for (p = 0; p < pixmp->num_planes; p++) {
+			pfmt[p].sizeimage = get_framesize_nv12(p, pixmp->height,
+							       pixmp->width);
+
+			pfmt[p].bytesperline = ALIGN(pixmp->width, 128);
+		}
+	} else {
+		u32 mbs = pixmp->width * pixmp->height / MACROBLOCKS_PER_PIXEL;
+
+		pfmt[0].sizeimage = get_framesize_compressed(mbs);
+		pfmt[0].bytesperline = 0;
+	}
+
+	return fmt;
+}
+
+static int vdec_try_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vidc_inst *inst = to_inst(file);
+	const struct vidc_format *fmt;
+
+	fmt = vdec_try_fmt_common(inst, f);
+	if (!fmt)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int vdec_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vidc_inst *inst = to_inst(file);
+	const struct vidc_format *fmt = NULL;
+	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
+
+	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+		fmt = inst->fmt_cap;
+	else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		fmt = inst->fmt_out;
+
+	if (inst->in_reconfig) {
+		inst->height = inst->reconfig_height;
+		inst->width = inst->reconfig_width;
+		inst->in_reconfig = false;
+	}
+
+	pixmp->pixelformat = fmt->pixfmt;
+
+	if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+		pixmp->width = inst->width;
+		pixmp->height = inst->height;
+		pixmp->colorspace = inst->colorspace;
+		pixmp->ycbcr_enc = inst->ycbcr_enc;
+		pixmp->quantization = inst->quantization;
+		pixmp->xfer_func = inst->xfer_func;
+	} else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+		pixmp->width = inst->out_width;
+		pixmp->height = inst->out_height;
+	}
+
+	vdec_try_fmt_common(inst, f);
+
+	return 0;
+}
+
+static int vdec_s_fmt(struct file *file, void *fh, struct v4l2_format *f)
+{
+	struct vidc_inst *inst = to_inst(file);
+	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
+	struct v4l2_pix_format_mplane orig_pixmp;
+	const struct vidc_format *fmt;
+	struct v4l2_format format;
+	u32 pixfmt_out = 0, pixfmt_cap = 0;
+
+	orig_pixmp = *pixmp;
+
+	fmt = vdec_try_fmt_common(inst, f);
+	if (!fmt)
+		return -EINVAL;
+
+	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+		pixfmt_out = pixmp->pixelformat;
+		pixfmt_cap = inst->fmt_cap->pixfmt;
+	} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+		pixfmt_cap = pixmp->pixelformat;
+		pixfmt_out = inst->fmt_out->pixfmt;
+	}
+
+	memset(&format, 0, sizeof(format));
+
+	format.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	format.fmt.pix_mp.pixelformat = pixfmt_out;
+	format.fmt.pix_mp.width = orig_pixmp.width;
+	format.fmt.pix_mp.height = orig_pixmp.height;
+	vdec_try_fmt_common(inst, &format);
+	inst->out_width = format.fmt.pix_mp.width;
+	inst->out_height = format.fmt.pix_mp.height;
+	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+		inst->colorspace = pixmp->colorspace;
+		inst->ycbcr_enc = pixmp->ycbcr_enc;
+		inst->quantization = pixmp->quantization;
+		inst->xfer_func = pixmp->xfer_func;
+	}
+
+	memset(&format, 0, sizeof(format));
+
+	format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	format.fmt.pix_mp.pixelformat = pixfmt_cap;
+	format.fmt.pix_mp.width = orig_pixmp.width;
+	format.fmt.pix_mp.height = orig_pixmp.height;
+	vdec_try_fmt_common(inst, &format);
+	inst->width = format.fmt.pix_mp.width;
+	inst->height = format.fmt.pix_mp.height;
+
+	if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		inst->fmt_out = fmt;
+	else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+		inst->fmt_cap = fmt;
+
+	return 0;
+}
+
+static int
+vdec_g_selection(struct file *file, void *priv, struct v4l2_selection *s)
+{
+	struct vidc_inst *inst = to_inst(file);
+
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP:
+	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+	case V4L2_SEL_TGT_COMPOSE:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	s->r.top = 0;
+	s->r.left = 0;
+	s->r.width = inst->out_width;
+	s->r.height = inst->out_height;
+
+	return 0;
+}
+
+static int
+vdec_reqbufs(struct file *file, void *fh, struct v4l2_requestbuffers *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->type);
+
+	if (!queue)
+		return -EINVAL;
+
+	if (!b->count)
+		vb2_core_queue_release(queue);
+
+	return vb2_reqbufs(queue, b);
+}
+
+static int
+vdec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
+{
+	strlcpy(cap->driver, VIDC_DRV_NAME, sizeof(cap->driver));
+	strlcpy(cap->card, "video decoder", sizeof(cap->card));
+	strlcpy(cap->bus_info, "platform:vidc", sizeof(cap->bus_info));
+
+	return 0;
+}
+
+static int vdec_enum_fmt(struct file *file, void *fh, struct v4l2_fmtdesc *f)
+{
+	const struct vidc_format *fmt;
+
+	memset(f->reserved, 0, sizeof(f->reserved));
+
+	fmt = find_format_by_index(f->index, f->type);
+	if (!fmt)
+		return -EINVAL;
+
+	f->pixelformat = fmt->pixfmt;
+
+	return 0;
+}
+
+static int vdec_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->type);
+	unsigned int p;
+	int ret;
+
+	if (!queue)
+		return -EINVAL;
+
+	ret = vb2_querybuf(queue, b);
+	if (ret)
+		return ret;
+
+	if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
+	    b->memory == V4L2_MEMORY_MMAP) {
+		for (p = 0; p < b->length; p++)
+			b->m.planes[p].m.mem_offset += DST_QUEUE_OFF_BASE;
+	}
+
+	return 0;
+}
+
+static int
+vdec_create_bufs(struct file *file, void *fh, struct v4l2_create_buffers *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->format.type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_create_bufs(queue, b);
+}
+
+static int vdec_prepare_buf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_prepare_buf(queue, b);
+}
+
+static int vdec_qbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_qbuf(queue, b);
+}
+
+static int
+vdec_exportbuf(struct file *file, void *fh, struct v4l2_exportbuffer *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_expbuf(queue, b);
+}
+
+static int vdec_dqbuf(struct file *file, void *fh, struct v4l2_buffer *b)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, b->type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_dqbuf(queue, b, file->f_flags & O_NONBLOCK);
+}
+
+static int vdec_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_streamon(queue, type);
+}
+
+static int vdec_streamoff(struct file *file, void *fh, enum v4l2_buf_type type)
+{
+	struct vb2_queue *queue = vidc_to_vb2q(file, type);
+
+	if (!queue)
+		return -EINVAL;
+
+	return vb2_streamoff(queue, type);
+}
+
+static int vdec_s_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+{
+	struct vidc_inst *inst = to_inst(file);
+	struct v4l2_captureparm *cap = &a->parm.capture;
+	struct v4l2_fract *timeperframe = &cap->timeperframe;
+	u64 us_per_frame, fps;
+
+	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
+	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		return -EINVAL;
+
+	memset(cap->reserved, 0, sizeof(cap->reserved));
+	if (!timeperframe->denominator)
+		timeperframe->denominator = inst->timeperframe.denominator;
+	if (!timeperframe->numerator)
+		timeperframe->numerator = inst->timeperframe.numerator;
+	cap->readbuffers = 0;
+	cap->extendedmode = 0;
+	cap->capability = V4L2_CAP_TIMEPERFRAME;
+	us_per_frame = timeperframe->numerator * (u64)USEC_PER_SEC;
+	do_div(us_per_frame, timeperframe->denominator);
+
+	if (!us_per_frame)
+		return -EINVAL;
+
+	fps = (u64)USEC_PER_SEC;
+	do_div(fps, us_per_frame);
+
+	inst->fps = fps;
+	inst->timeperframe = *timeperframe;
+
+	return 0;
+}
+
+static int vdec_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
+{
+	struct vidc_inst *inst = to_inst(file);
+
+	if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
+	    a->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		return -EINVAL;
+
+	a->parm.capture.capability |= V4L2_CAP_TIMEPERFRAME;
+	a->parm.capture.timeperframe = inst->timeperframe;
+
+	return 0;
+}
+
+static int vdec_enum_framesizes(struct file *file, void *fh,
+				struct v4l2_frmsizeenum *fsize)
+{
+	struct hfi_inst *hfi_inst = to_hfi_inst(file);
+	const struct vidc_format *fmt;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+
+	fmt = find_format(fsize->pixel_format,
+			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+	if (!fmt) {
+		fmt = find_format(fsize->pixel_format,
+				  V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+		if (!fmt)
+			return -EINVAL;
+	}
+
+	if (fsize->index)
+		return -EINVAL;
+
+	fsize->stepwise.min_width = hfi_inst->width.min;
+	fsize->stepwise.max_width = hfi_inst->width.max;
+	fsize->stepwise.step_width = hfi_inst->width.step_size;
+	fsize->stepwise.min_height = hfi_inst->height.min;
+	fsize->stepwise.max_height = hfi_inst->height.max;
+	fsize->stepwise.step_height = hfi_inst->height.step_size;
+
+	return 0;
+}
+
+static int vdec_enum_frameintervals(struct file *file, void *fh,
+				    struct v4l2_frmivalenum *fival)
+{
+	struct hfi_inst *hfi_inst = to_hfi_inst(file);
+	const struct vidc_format *fmt;
+
+	fival->type = V4L2_FRMIVAL_TYPE_STEPWISE;
+
+	fmt = find_format(fival->pixel_format,
+			  V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
+	if (!fmt)
+		return -EINVAL;
+
+	if (fival->index)
+		return -EINVAL;
+
+	if (!fival->width || !fival->height)
+		return -EINVAL;
+
+	if (fival->width > hfi_inst->width.max ||
+	    fival->width < hfi_inst->width.min ||
+	    fival->height > hfi_inst->height.max ||
+	    fival->height < hfi_inst->height.min)
+		return -EINVAL;
+
+	fival->stepwise.min.numerator = hfi_inst->framerate.min;
+	fival->stepwise.min.denominator = 1;
+	fival->stepwise.max.numerator = hfi_inst->framerate.max;
+	fival->stepwise.max.denominator = 1;
+	fival->stepwise.step.numerator = hfi_inst->framerate.step_size;
+	fival->stepwise.step.denominator = 1;
+
+	return 0;
+}
+
+static int vdec_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, 2, NULL);
+	case V4L2_EVENT_SOURCE_CHANGE:
+		return v4l2_src_change_event_subscribe(fh, sub);
+	case V4L2_EVENT_CTRL:
+		return v4l2_ctrl_subscribe_event(fh, sub);
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct v4l2_ioctl_ops vdec_ioctl_ops = {
+	.vidioc_querycap = vdec_querycap,
+	.vidioc_enum_fmt_vid_cap_mplane = vdec_enum_fmt,
+	.vidioc_enum_fmt_vid_out_mplane = vdec_enum_fmt,
+	.vidioc_s_fmt_vid_cap_mplane = vdec_s_fmt,
+	.vidioc_s_fmt_vid_out_mplane = vdec_s_fmt,
+	.vidioc_g_fmt_vid_cap_mplane = vdec_g_fmt,
+	.vidioc_g_fmt_vid_out_mplane = vdec_g_fmt,
+	.vidioc_try_fmt_vid_cap_mplane = vdec_try_fmt,
+	.vidioc_try_fmt_vid_out_mplane = vdec_try_fmt,
+	.vidioc_g_selection = vdec_g_selection,
+	.vidioc_reqbufs = vdec_reqbufs,
+	.vidioc_querybuf = vdec_querybuf,
+	.vidioc_create_bufs = vdec_create_bufs,
+	.vidioc_prepare_buf = vdec_prepare_buf,
+	.vidioc_qbuf = vdec_qbuf,
+	.vidioc_expbuf = vdec_exportbuf,
+	.vidioc_dqbuf = vdec_dqbuf,
+	.vidioc_streamon = vdec_streamon,
+	.vidioc_streamoff = vdec_streamoff,
+	.vidioc_s_parm = vdec_s_parm,
+	.vidioc_g_parm = vdec_g_parm,
+	.vidioc_enum_framesizes = vdec_enum_framesizes,
+	.vidioc_enum_frameintervals = vdec_enum_frameintervals,
+	.vidioc_subscribe_event = vdec_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static int vdec_init_session(struct vidc_inst *inst)
+{
+	struct hfi_core *hfi = &inst->core->hfi;
+	u32 pixfmt = inst->fmt_out->pixfmt;
+	struct hfi_framesize fs;
+	u32 ptype;
+	int ret;
+
+	ret = vidc_hfi_session_init(hfi, inst->hfi_inst, pixfmt,
+				    VIDC_SESSION_TYPE_DEC);
+	if (ret)
+		return ret;
+
+	ptype = HFI_PROPERTY_PARAM_FRAME_SIZE;
+	fs.buffer_type = HFI_BUFFER_INPUT;
+	fs.width = inst->out_width;
+	fs.height = inst->out_height;
+
+	ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst, ptype, &fs);
+	if (ret)
+		goto err;
+
+	fs.buffer_type = HFI_BUFFER_OUTPUT;
+	fs.width = inst->width;
+	fs.height = inst->height;
+
+	ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst, ptype, &fs);
+	if (ret)
+		goto err;
+
+	pixfmt = inst->fmt_cap->pixfmt;
+
+	ret = vidc_set_color_format(inst, HFI_BUFFER_OUTPUT, pixfmt);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	vidc_hfi_session_deinit(hfi, inst->hfi_inst);
+	return ret;
+}
+
+static int vdec_cap_num_buffers(struct vidc_inst *inst,
+				struct hfi_buffer_requirements *bufreq)
+{
+	struct hfi_core *hfi = &inst->core->hfi;
+	struct device *dev = inst->core->dev;
+	int ret, ret2;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0)
+		return ret;
+
+	ret = vdec_init_session(inst);
+	if (ret)
+		goto put_sync;
+
+	ret = vidc_get_bufreq(inst, HFI_BUFFER_OUTPUT, bufreq);
+
+	vidc_hfi_session_deinit(hfi, inst->hfi_inst);
+
+put_sync:
+	ret2 = pm_runtime_put_sync(dev);
+
+	return ret ? ret : ret2;
+}
+
+static int vdec_queue_setup(struct vb2_queue *q,
+			    unsigned int *num_buffers, unsigned int *num_planes,
+			    unsigned int sizes[], struct device *alloc_devs[])
+{
+	struct vidc_inst *inst = vb2_get_drv_priv(q);
+	struct hfi_buffer_requirements bufreq;
+	unsigned int p;
+	int ret = 0;
+	u32 mbs;
+
+	switch (q->type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		*num_planes = inst->fmt_out->num_planes;
+
+		*num_buffers = clamp_val(*num_buffers, 4, VIDEO_MAX_FRAME);
+
+		mbs = inst->out_width * inst->out_height /
+				MACROBLOCKS_PER_PIXEL;
+		for (p = 0; p < *num_planes; p++)
+			sizes[p] = get_framesize_compressed(mbs);
+
+		inst->num_input_bufs = *num_buffers;
+		break;
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		*num_planes = inst->fmt_cap->num_planes;
+
+		ret = vdec_cap_num_buffers(inst, &bufreq);
+		if (ret)
+			break;
+
+		*num_buffers = max(*num_buffers, bufreq.count_actual);
+
+		for (p = 0; p < *num_planes; p++)
+			sizes[p] = get_framesize_nv12(p, inst->height,
+						      inst->width);
+
+		inst->num_output_bufs = *num_buffers;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int vdec_check_configuration(struct vidc_inst *inst)
+{
+	struct hfi_buffer_requirements bufreq;
+	int ret;
+
+	ret = vidc_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
+	if (ret)
+		return ret;
+
+	if (inst->num_output_bufs < bufreq.count_actual ||
+	    inst->num_output_bufs < bufreq.count_min)
+		return -EINVAL;
+
+	ret = vidc_get_bufreq(inst, HFI_BUFFER_INPUT, &bufreq);
+	if (ret)
+		return ret;
+
+	if (inst->num_input_bufs < bufreq.count_min)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int vdec_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+	struct vidc_inst *inst = vb2_get_drv_priv(q);
+	struct hfi_core *hfi = &inst->core->hfi;
+	struct device *dev = inst->core->dev;
+	struct hfi_buffer_requirements bufreq;
+	struct hfi_buffer_count_actual buf_count;
+	struct vb2_queue *other_queue;
+	u32 ptype;
+	int ret;
+
+	if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+		other_queue = &inst->bufq_cap;
+	else
+		other_queue = &inst->bufq_out;
+
+	if (!vb2_is_streaming(other_queue))
+		return 0;
+
+	inst->in_reconfig = false;
+	inst->sequence = 0;
+
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0)
+		return ret;
+
+	ret = vdec_init_session(inst);
+	if (ret)
+		goto put_sync;
+
+	ret = vdec_set_properties(inst);
+	if (ret)
+		goto deinit_sess;
+
+	ret = vdec_check_configuration(inst);
+	if (ret)
+		goto deinit_sess;
+
+	ptype = HFI_PROPERTY_PARAM_BUFFER_COUNT_ACTUAL;
+	buf_count.type = HFI_BUFFER_INPUT;
+	buf_count.count_actual = inst->num_input_bufs;
+
+	ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst,
+					    ptype, &buf_count);
+	if (ret)
+		goto deinit_sess;
+
+	ret = vidc_get_bufreq(inst, HFI_BUFFER_OUTPUT, &bufreq);
+	if (ret)
+		goto deinit_sess;
+
+	ptype = HFI_PROPERTY_PARAM_BUFFER_COUNT_ACTUAL;
+	buf_count.type = HFI_BUFFER_OUTPUT;
+	buf_count.count_actual = inst->num_output_bufs;
+
+	ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst,
+					    ptype, &buf_count);
+	if (ret)
+		goto deinit_sess;
+
+	if (inst->num_output_bufs != bufreq.count_actual) {
+		struct hfi_buffer_display_hold_count_actual display;
+
+		ptype = HFI_PROPERTY_PARAM_BUFFER_DISPLAY_HOLD_COUNT_ACTUAL;
+		display.type = HFI_BUFFER_OUTPUT;
+		display.hold_count = inst->num_output_bufs -
+				     bufreq.count_actual;
+
+		ret = vidc_hfi_session_set_property(hfi, inst->hfi_inst,
+						    ptype, &display);
+		if (ret)
+			goto deinit_sess;
+	}
+
+	ret = vidc_vb2_start_streaming(inst);
+	if (ret)
+		goto deinit_sess;
+
+	return 0;
+
+deinit_sess:
+	vidc_hfi_session_deinit(hfi, inst->hfi_inst);
+put_sync:
+	pm_runtime_put_sync(dev);
+	return ret;
+}
+
+static const struct vb2_ops vdec_vb2_ops = {
+	.queue_setup = vdec_queue_setup,
+	.buf_init = vidc_vb2_buf_init,
+	.buf_prepare = vidc_vb2_buf_prepare,
+	.start_streaming = vdec_start_streaming,
+	.stop_streaming = vidc_vb2_stop_streaming,
+	.buf_queue = vidc_vb2_buf_queue,
+};
+
+static int vdec_empty_buf_done(struct hfi_inst *hfi_inst, u32 addr,
+			       u32 bytesused, u32 data_offset, u32 flags)
+{
+	struct vidc_inst *inst = hfi_inst->ops_priv;
+	struct vb2_v4l2_buffer *vbuf;
+	struct vb2_buffer *vb;
+
+	vbuf = vidc_vb2_find_buf(inst, addr);
+	if (!vbuf)
+		return -EINVAL;
+
+	vb = &vbuf->vb2_buf;
+	vbuf->flags = flags;
+
+	vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
+
+	return 0;
+}
+
+static int vdec_fill_buf_done(struct hfi_inst *hfi_inst, u32 addr,
+			      u32 bytesused, u32 data_offset, u32 flags,
+			      struct timeval *timestamp)
+{
+	struct vidc_inst *inst = hfi_inst->ops_priv;
+	struct vb2_v4l2_buffer *vbuf;
+	struct vb2_buffer *vb;
+
+	vbuf = vidc_vb2_find_buf(inst, addr);
+	if (!vbuf)
+		return -EINVAL;
+
+	vb = &vbuf->vb2_buf;
+	vb->planes[0].bytesused = bytesused;
+	vb->planes[0].data_offset = data_offset;
+	vb->timestamp = timeval_to_ns(timestamp);
+	vbuf->flags = flags;
+	vbuf->sequence = inst->sequence++;
+
+	vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
+
+	if (vbuf->flags & V4L2_BUF_FLAG_LAST) {
+		const struct v4l2_event ev = {
+			.type = V4L2_EVENT_EOS
+		};
+
+		v4l2_event_queue_fh(&inst->fh, &ev);
+	}
+
+	return 0;
+}
+
+static int vdec_event_notify(struct hfi_inst *hfi_inst, u32 event,
+			     struct hfi_event_data *data)
+{
+	struct vidc_inst *inst = hfi_inst->ops_priv;
+	struct device *dev = inst->core->dev;
+	const struct v4l2_event ev = { .type = V4L2_EVENT_SOURCE_CHANGE };
+
+	switch (event) {
+	case EVT_SESSION_ERROR:
+		if (hfi_inst) {
+			mutex_lock(&hfi_inst->lock);
+			inst->hfi_inst->state = INST_INVALID;
+			mutex_unlock(&hfi_inst->lock);
+		}
+		dev_err(dev, "dec: event session error (inst:%p)\n", hfi_inst);
+		break;
+	case EVT_SYS_EVENT_CHANGE:
+		switch (data->event_type) {
+		case HFI_EVENT_DATA_SEQUENCE_CHANGED_SUFFICIENT_BUF_RESOURCES:
+			dev_dbg(dev, "event sufficient resources\n");
+			break;
+		case HFI_EVENT_DATA_SEQUENCE_CHANGED_INSUFFICIENT_BUF_RESOURCES:
+			inst->reconfig_height = data->height;
+			inst->reconfig_width = data->width;
+			inst->in_reconfig = true;
+
+			v4l2_event_queue_fh(&inst->fh, &ev);
+
+			dev_dbg(dev, "event not sufficient resources (%ux%u)\n",
+				data->width, data->height);
+			break;
+		default:
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static const struct hfi_inst_ops vdec_hfi_ops = {
+	.empty_buf_done = vdec_empty_buf_done,
+	.fill_buf_done = vdec_fill_buf_done,
+	.event_notify = vdec_event_notify,
+};
+
+static void vdec_inst_init(struct vidc_inst *inst)
+{
+	struct hfi_inst *hfi_inst = inst->hfi_inst;
+
+	inst->fmt_out = &vdec_formats[6];
+	inst->fmt_cap = &vdec_formats[0];
+	inst->width = 1280;
+	inst->height = ALIGN(720, 32);
+	inst->out_width = 1280;
+	inst->out_height = 720;
+	inst->fps = 30;
+	inst->timeperframe.numerator = 1;
+	inst->timeperframe.denominator = 30;
+
+	hfi_inst->width.min = 64;
+	hfi_inst->width.max = 1920;
+	hfi_inst->width.step_size = 1;
+	hfi_inst->height.min = 64;
+	hfi_inst->height.max = ALIGN(1080, 32);
+	hfi_inst->height.step_size = 1;
+	hfi_inst->framerate.min = 1;
+	hfi_inst->framerate.max = 30;
+	hfi_inst->framerate.step_size = 1;
+	hfi_inst->mbs_per_frame.min = 16;
+	hfi_inst->mbs_per_frame.max = 8160;
+}
+
+int vdec_init(struct vidc_core *core, struct video_device *dec,
+	      const struct v4l2_file_operations *fops)
+{
+	int ret;
+
+	dec->release = video_device_release_empty;
+	dec->fops = fops;
+	dec->ioctl_ops = &vdec_ioctl_ops;
+	dec->vfl_dir = VFL_DIR_M2M;
+	dec->v4l2_dev = &core->v4l2_dev;
+	dec->device_caps = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING;
+
+	ret = video_register_device(dec, VFL_TYPE_GRABBER, -1);
+	if (ret)
+		return ret;
+
+	video_set_drvdata(dec, core);
+
+	return 0;
+}
+
+void vdec_deinit(struct vidc_core *core, struct video_device *dec)
+{
+	video_unregister_device(dec);
+}
+
+int vdec_open(struct vidc_inst *inst)
+{
+	struct hfi_core *hfi = &inst->core->hfi;
+	struct vb2_queue *q;
+	int ret;
+
+	ret = vdec_ctrl_init(inst);
+	if (ret)
+		return ret;
+
+	inst->hfi_inst = vidc_hfi_session_create(hfi, &vdec_hfi_ops, inst);
+	if (IS_ERR(inst->hfi_inst)) {
+		ret = PTR_ERR(inst->hfi_inst);
+		goto err_ctrl_deinit;
+	}
+
+	vdec_inst_init(inst);
+
+	q = &inst->bufq_cap;
+	q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	q->io_modes = VB2_MMAP | VB2_DMABUF;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	q->ops = &vdec_vb2_ops;
+	q->mem_ops = &vb2_dma_sg_memops;
+	q->drv_priv = inst;
+	q->buf_struct_size = sizeof(struct vidc_buffer);
+	q->allow_zero_bytesused = 1;
+	q->dev = inst->core->dev;
+	ret = vb2_queue_init(q);
+	if (ret)
+		goto err_session_destroy;
+
+	q = &inst->bufq_out;
+	q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	q->io_modes = VB2_MMAP | VB2_DMABUF;
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+	q->ops = &vdec_vb2_ops;
+	q->mem_ops = &vb2_dma_sg_memops;
+	q->drv_priv = inst;
+	q->buf_struct_size = sizeof(struct vidc_buffer);
+	q->allow_zero_bytesused = 1;
+	q->dev = inst->core->dev;
+	ret = vb2_queue_init(q);
+	if (ret)
+		goto err_cap_queue_release;
+
+	return 0;
+
+err_cap_queue_release:
+	vb2_queue_release(&inst->bufq_cap);
+err_session_destroy:
+	vidc_hfi_session_destroy(hfi, inst->hfi_inst);
+	inst->hfi_inst = NULL;
+err_ctrl_deinit:
+	vdec_ctrl_deinit(inst);
+	return ret;
+}
+
+void vdec_close(struct vidc_inst *inst)
+{
+	struct hfi_core *hfi = &inst->core->hfi;
+
+	vb2_queue_release(&inst->bufq_out);
+	vb2_queue_release(&inst->bufq_cap);
+	vdec_ctrl_deinit(inst);
+	vidc_hfi_session_destroy(hfi, inst->hfi_inst);
+}
diff --git a/drivers/media/platform/qcom/vidc/vdec.h b/drivers/media/platform/qcom/vidc/vdec.h
new file mode 100644
index 000000000000..ddc3613f71e2
--- /dev/null
+++ b/drivers/media/platform/qcom/vidc/vdec.h
@@ -0,0 +1,29 @@ 
+/*
+ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2016 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef __VIDC_VDEC_H__
+#define __VIDC_VDEC_H__
+
+struct vidc_core;
+struct video_device;
+struct vidc_inst;
+struct v4l2_file_operations;
+
+int vdec_init(struct vidc_core *core, struct video_device *dec,
+	      const struct v4l2_file_operations *fops);
+void vdec_deinit(struct vidc_core *core, struct video_device *dec);
+int vdec_open(struct vidc_inst *inst);
+void vdec_close(struct vidc_inst *inst);
+
+#endif
diff --git a/drivers/media/platform/qcom/vidc/vdec_ctrls.c b/drivers/media/platform/qcom/vidc/vdec_ctrls.c
new file mode 100644
index 000000000000..59225d8f1fd9
--- /dev/null
+++ b/drivers/media/platform/qcom/vidc/vdec_ctrls.c
@@ -0,0 +1,200 @@ 
+/*
+ * Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2016 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/types.h>
+#include <media/v4l2-ctrls.h>
+
+#include "core.h"
+
+static struct vidc_ctrl vdec_ctrls[] = {
+	{
+		.id = V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE,
+		.type = V4L2_CTRL_TYPE_MENU,
+		.min = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE,
+		.max = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY,
+		.def = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE,
+		.flags = V4L2_CTRL_FLAG_VOLATILE,
+		.menu_skip_mask = ~(
+			(1 << V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE) |
+			(1 << V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE)
+		),
+	}, {
+		.id = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL,
+		.type = V4L2_CTRL_TYPE_MENU,
+		.min = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0,
+		.max = V4L2_MPEG_VIDEO_MPEG4_LEVEL_5,
+		.def = V4L2_MPEG_VIDEO_MPEG4_LEVEL_0,
+		.flags = V4L2_CTRL_FLAG_VOLATILE,
+	}, {
+		.id = V4L2_CID_MPEG_VIDEO_H264_PROFILE,
+		.type = V4L2_CTRL_TYPE_MENU,
+		.min = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
+		.max = V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH,
+		.def = V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE,
+		.flags = V4L2_CTRL_FLAG_VOLATILE,
+		.menu_skip_mask = ~(
+		(1 << V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
+		(1 << V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE) |
+		(1 << V4L2_MPEG_VIDEO_H264_PROFILE_MAIN) |
+		(1 << V4L2_MPEG_VIDEO_H264_PROFILE_HIGH) |
+		(1 << V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH) |
+		(1 << V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH)
+		),
+	}, {
+		.id = V4L2_CID_MPEG_VIDEO_H264_LEVEL,
+		.type = V4L2_CTRL_TYPE_MENU,
+		.min = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+		.max = V4L2_MPEG_VIDEO_H264_LEVEL_5_1,
+		.def = V4L2_MPEG_VIDEO_H264_LEVEL_1_0,
+		.flags = V4L2_CTRL_FLAG_VOLATILE,
+	}, {
+		.id = V4L2_CID_MPEG_VIDEO_VPX_PROFILE,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.min = 0,
+		.max = 3,
+		.step = 1,
+		.def = 0,
+		.flags = V4L2_CTRL_FLAG_VOLATILE,
+	}, {
+		.id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
+		.type = V4L2_CTRL_TYPE_BOOLEAN,
+		.def = 0,
+	},
+};
+
+#define NUM_CTRLS	ARRAY_SIZE(vdec_ctrls)
+
+static int vdec_op_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vidc_inst *inst = ctrl_to_inst(ctrl);
+	struct vdec_controls *ctr = &inst->controls.dec;
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
+		ctr->post_loop_deb_mode = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+	case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
+	case V4L2_CID_MPEG_VIDEO_VPX_PROFILE:
+		ctr->profile = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+	case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
+		ctr->level = ctrl->val;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int vdec_op_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vidc_inst *inst = ctrl_to_inst(ctrl);
+	struct vdec_controls *ctr = &inst->controls.dec;
+	struct hfi_core *hfi = &inst->core->hfi;
+	union hfi_get_property hprop;
+	u32 ptype = HFI_PROPERTY_PARAM_PROFILE_LEVEL_CURRENT;
+	int ret;
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+	case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
+	case V4L2_CID_MPEG_VIDEO_VPX_PROFILE:
+		ret = vidc_hfi_session_get_property(hfi, inst->hfi_inst, ptype,
+						    &hprop);
+		if (!ret)
+			ctr->profile = hprop.profile_level.profile;
+		ctrl->val = ctr->profile;
+		break;
+	case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+	case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
+		ret = vidc_hfi_session_get_property(hfi, inst->hfi_inst, ptype,
+						    &hprop);
+		if (!ret)
+			ctr->level = hprop.profile_level.level;
+		ctrl->val = ctr->level;
+		break;
+	case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
+		ctrl->val = ctr->post_loop_deb_mode;
+		break;
+	default:
+		return -EINVAL;
+	};
+
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vdec_ctrl_ops = {
+	.s_ctrl = vdec_op_s_ctrl,
+	.g_volatile_ctrl = vdec_op_g_volatile_ctrl,
+};
+
+int vdec_ctrl_init(struct vidc_inst *inst)
+{
+	unsigned int i;
+	int ret;
+
+	ret = v4l2_ctrl_handler_init(&inst->ctrl_handler, NUM_CTRLS);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < NUM_CTRLS; i++) {
+		struct v4l2_ctrl *ctrl;
+
+		if (vdec_ctrls[i].type == V4L2_CTRL_TYPE_MENU) {
+			ctrl = v4l2_ctrl_new_std_menu(&inst->ctrl_handler,
+					&vdec_ctrl_ops,
+					vdec_ctrls[i].id,
+					vdec_ctrls[i].max,
+					vdec_ctrls[i].menu_skip_mask,
+					vdec_ctrls[i].def);
+		} else {
+			ctrl = v4l2_ctrl_new_std(&inst->ctrl_handler,
+					&vdec_ctrl_ops,
+					vdec_ctrls[i].id,
+					vdec_ctrls[i].min,
+					vdec_ctrls[i].max,
+					vdec_ctrls[i].step,
+					vdec_ctrls[i].def);
+		}
+
+		if (!ctrl)
+			return -EINVAL;
+
+		switch (vdec_ctrls[i].id) {
+		case V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE:
+		case V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL:
+		case V4L2_CID_MPEG_VIDEO_H264_PROFILE:
+		case V4L2_CID_MPEG_VIDEO_H264_LEVEL:
+		case V4L2_CID_MPEG_VIDEO_VPX_PROFILE:
+			ctrl->flags |= vdec_ctrls[i].flags;
+			break;
+		}
+
+		ret = inst->ctrl_handler.error;
+		if (ret) {
+			v4l2_ctrl_handler_free(&inst->ctrl_handler);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+void vdec_ctrl_deinit(struct vidc_inst *inst)
+{
+	v4l2_ctrl_handler_free(&inst->ctrl_handler);
+}
diff --git a/drivers/media/platform/qcom/vidc/vdec_ctrls.h b/drivers/media/platform/qcom/vidc/vdec_ctrls.h
new file mode 100644
index 000000000000..18f14d06deed
--- /dev/null
+++ b/drivers/media/platform/qcom/vidc/vdec_ctrls.h
@@ -0,0 +1,21 @@ 
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ * Copyright (C) 2016 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef __VIDC_VDEC_CTRLS_H__
+#define __VIDC_VDEC_CTRLS_H__
+
+int vdec_ctrl_init(struct vidc_inst *inst);
+void vdec_ctrl_deinit(struct vidc_inst *inst);
+
+#endif