[media] s5p-jpeg: JPEG codec (80529ae5) · Commits · e / devices / android_kernel_teracube_2e

drivers/media/platform/s5p-jpeg/Makefile

+1 −1

Original line number	Diff line number	Diff line
		s5p-jpeg-objs := jpeg-core.o jpeg-hw-s5p.o
		s5p-jpeg-objs := jpeg-core.o jpeg-hw-exynos4.o jpeg-hw-s5p.o
		obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) += s5p-jpeg.o

drivers/media/platform/s5p-jpeg/jpeg-core.c

+534 −87

Original line number	Diff line number	Diff line
		/* linux/drivers/media/platform/s5p-jpeg/jpeg-core.c
		*
		* Copyright (c) 2011 Samsung Electronics Co., Ltd.
		* Copyright (c) 2011-2013 Samsung Electronics Co., Ltd.
		* http://www.samsung.com
		*
		* Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
		* Author: Jacek Anaszewski <j.anaszewski@samsung.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		@@ -30,58 +31,212 @@

		#include "jpeg-core.h"
		#include "jpeg-hw-s5p.h"
		#include "jpeg-hw-exynos4.h"
		#include "jpeg-regs.h"

		static struct s5p_jpeg_fmt formats_enc[] = {
		static struct s5p_jpeg_fmt sjpeg_formats[] = {
		{
		.name = "JPEG JFIF",
		.fourcc = V4L2_PIX_FMT_JPEG,
		.flags = SJPEG_FMT_FLAG_ENC_CAPTURE \|
		SJPEG_FMT_FLAG_DEC_OUTPUT \|
		SJPEG_FMT_FLAG_S5P \|
		SJPEG_FMT_FLAG_EXYNOS4,
		},
		{
		.name = "YUV 4:2:2 packed, YCbYCr",
		.fourcc = V4L2_PIX_FMT_YUYV,
		.depth = 16,
		.colplanes = 1,
		.types = MEM2MEM_CAPTURE,
		.h_align = 4,
		.v_align = 3,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_S5P \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422,
		},
		{
		.name = "YUV 4:2:2 packed, YCbYCr",
		.fourcc = V4L2_PIX_FMT_YUYV,
		.depth = 16,
		.colplanes = 1,
		.types = MEM2MEM_OUTPUT,
		.h_align = 1,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422,
		},
		{
		.name = "YUV 4:2:2 packed, YCrYCb",
		.fourcc = V4L2_PIX_FMT_YVYU,
		.depth = 16,
		.colplanes = 1,
		.h_align = 1,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422,
		},
		{
		.name = "RGB565",
		.fourcc = V4L2_PIX_FMT_RGB565,
		.depth = 16,
		.colplanes = 1,
		.types = MEM2MEM_OUTPUT,
		.h_align = 0,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
		},
		};
		#define NUM_FORMATS_ENC ARRAY_SIZE(formats_enc)

		static struct s5p_jpeg_fmt formats_dec[] = {
		{
		.name = "YUV 4:2:0 planar, YCbCr",
		.name = "RGB565",
		.fourcc = V4L2_PIX_FMT_RGB565,
		.depth = 16,
		.colplanes = 1,
		.h_align = 0,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_S5P \|
		SJPEG_FMT_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
		},
		{
		.name = "ARGB8888, 32 bpp",
		.fourcc = V4L2_PIX_FMT_RGB32,
		.depth = 32,
		.colplanes = 1,
		.h_align = 0,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
		},
		{
		.name = "YUV 4:4:4 planar, Y/CbCr",
		.fourcc = V4L2_PIX_FMT_NV24,
		.depth = 24,
		.colplanes = 2,
		.h_align = 0,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
		},
		{
		.name = "YUV 4:4:4 planar, Y/CrCb",
		.fourcc = V4L2_PIX_FMT_NV42,
		.depth = 24,
		.colplanes = 2,
		.h_align = 0,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_444,
		},
		{
		.name = "YUV 4:2:2 planar, Y/CrCb",
		.fourcc = V4L2_PIX_FMT_NV61,
		.depth = 16,
		.colplanes = 2,
		.h_align = 1,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422,
		},
		{
		.name = "YUV 4:2:2 planar, Y/CbCr",
		.fourcc = V4L2_PIX_FMT_NV16,
		.depth = 16,
		.colplanes = 2,
		.h_align = 1,
		.v_align = 0,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_422,
		},
		{
		.name = "YUV 4:2:0 planar, Y/CbCr",
		.fourcc = V4L2_PIX_FMT_NV12,
		.depth = 12,
		.colplanes = 3,
		.h_align = 4,
		.v_align = 4,
		.types = MEM2MEM_CAPTURE,
		.depth = 16,
		.colplanes = 2,
		.h_align = 1,
		.v_align = 1,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420,
		},
		{
		.name = "YUV 4:2:2 packed, YCbYCr",
		.fourcc = V4L2_PIX_FMT_YUYV,
		.name = "YUV 4:2:0 planar, Y/CbCr",
		.fourcc = V4L2_PIX_FMT_NV12,
		.depth = 16,
		.colplanes = 1,
		.colplanes = 4,
		.h_align = 4,
		.v_align = 3,
		.types = MEM2MEM_CAPTURE,
		.v_align = 1,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_S5P \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420,
		},
		{
		.name = "JPEG JFIF",
		.fourcc = V4L2_PIX_FMT_JPEG,
		.name = "YUV 4:2:0 planar, Y/CrCb",
		.fourcc = V4L2_PIX_FMT_NV21,
		.depth = 12,
		.colplanes = 2,
		.h_align = 1,
		.v_align = 1,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420,
		},
		{
		.name = "YUV 4:2:0 contiguous 3-planar, Y/Cb/Cr",
		.fourcc = V4L2_PIX_FMT_YUV420,
		.depth = 12,
		.colplanes = 3,
		.h_align = 1,
		.v_align = 1,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_420,
		},
		{
		.name = "Gray",
		.fourcc = V4L2_PIX_FMT_GREY,
		.depth = 8,
		.colplanes = 1,
		.types = MEM2MEM_OUTPUT,
		.flags = SJPEG_FMT_FLAG_ENC_OUTPUT \|
		SJPEG_FMT_FLAG_DEC_CAPTURE \|
		SJPEG_FMT_FLAG_EXYNOS4 \|
		SJPEG_FMT_NON_RGB,
		.subsampling = V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY,
		},
		};
		#define NUM_FORMATS_DEC ARRAY_SIZE(formats_dec)
		#define SJPEG_NUM_FORMATS ARRAY_SIZE(sjpeg_formats)

		static const unsigned char qtbl_luminance[4][64] = {
		{/level 0 - high compression quality /
		@@ -277,6 +432,58 @@ static inline void s5p_jpeg_set_hactblg(void __iomem *regs)
		ARRAY_SIZE(hactblg0));
		}

		static inline void exynos4_jpeg_set_tbl(void __iomem *regs,
		const unsigned char *tbl,
		unsigned long tab, int len)
		{
		int i;
		unsigned int dword;

		for (i = 0; i < len; i += 4) {
		dword = tbl[i] \|
		(tbl[i + 1] << 8) \|
		(tbl[i + 2] << 16) \|
		(tbl[i + 3] << 24);
		writel(dword, regs + tab + i);
		}
		}

		static inline void exynos4_jpeg_set_qtbl_lum(void __iomem *regs, int quality)
		{
		/* this driver fills quantisation table 0 with data for luma */
		exynos4_jpeg_set_tbl(regs, qtbl_luminance[quality],
		EXYNOS4_QTBL_CONTENT(0),
		ARRAY_SIZE(qtbl_luminance[quality]));
		}

		static inline void exynos4_jpeg_set_qtbl_chr(void __iomem *regs, int quality)
		{
		/* this driver fills quantisation table 1 with data for chroma */
		exynos4_jpeg_set_tbl(regs, qtbl_chrominance[quality],
		EXYNOS4_QTBL_CONTENT(1),
		ARRAY_SIZE(qtbl_chrominance[quality]));
		}

		void exynos4_jpeg_set_huff_tbl(void __iomem *base)
		{
		exynos4_jpeg_set_tbl(base, hdctbl0, EXYNOS4_HUFF_TBL_HDCLL,
		ARRAY_SIZE(hdctbl0));
		exynos4_jpeg_set_tbl(base, hdctbl0, EXYNOS4_HUFF_TBL_HDCCL,
		ARRAY_SIZE(hdctbl0));
		exynos4_jpeg_set_tbl(base, hdctblg0, EXYNOS4_HUFF_TBL_HDCLV,
		ARRAY_SIZE(hdctblg0));
		exynos4_jpeg_set_tbl(base, hdctblg0, EXYNOS4_HUFF_TBL_HDCCV,
		ARRAY_SIZE(hdctblg0));
		exynos4_jpeg_set_tbl(base, hactbl0, EXYNOS4_HUFF_TBL_HACLL,
		ARRAY_SIZE(hactbl0));
		exynos4_jpeg_set_tbl(base, hactbl0, EXYNOS4_HUFF_TBL_HACCL,
		ARRAY_SIZE(hactbl0));
		exynos4_jpeg_set_tbl(base, hactblg0, EXYNOS4_HUFF_TBL_HACLV,
		ARRAY_SIZE(hactblg0));
		exynos4_jpeg_set_tbl(base, hactblg0, EXYNOS4_HUFF_TBL_HACCV,
		ARRAY_SIZE(hactblg0));
		}

		/*
		* ============================================================================
		* Device file operations
		@@ -285,8 +492,8 @@ static inline void s5p_jpeg_set_hactblg(void __iomem *regs)

		static int queue_init(void priv, struct vb2_queue src_vq,
		struct vb2_queue *dst_vq);
		static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode,
		__u32 pixelformat);
		static struct s5p_jpeg_fmt s5p_jpeg_find_format(struct s5p_jpeg_ctx ctx,
		__u32 pixelformat, unsigned int fmt_type);
		static int s5p_jpeg_controls_create(struct s5p_jpeg_ctx *ctx);

		static int s5p_jpeg_open(struct file *file)
		@@ -294,7 +501,7 @@ static int s5p_jpeg_open(struct file *file)
		struct s5p_jpeg *jpeg = video_drvdata(file);
		struct video_device *vfd = video_devdata(file);
		struct s5p_jpeg_ctx *ctx;
		struct s5p_jpeg_fmt *out_fmt;
		struct s5p_jpeg_fmt out_fmt, cap_fmt;
		int ret = 0;

		ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
		@@ -315,16 +522,18 @@ static int s5p_jpeg_open(struct file *file)
		ctx->jpeg = jpeg;
		if (vfd == jpeg->vfd_encoder) {
		ctx->mode = S5P_JPEG_ENCODE;
		out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_RGB565);
		out_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_RGB565,
		FMT_TYPE_OUTPUT);
		cap_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
		FMT_TYPE_CAPTURE);
		} else {
		ctx->mode = S5P_JPEG_DECODE;
		out_fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_JPEG);
		out_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG,
		FMT_TYPE_OUTPUT);
		cap_fmt = s5p_jpeg_find_format(ctx, V4L2_PIX_FMT_YUYV,
		FMT_TYPE_CAPTURE);
		}

		ret = s5p_jpeg_controls_create(ctx);
		if (ret < 0)
		goto error;

		ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, queue_init);
		if (IS_ERR(ctx->fh.m2m_ctx)) {
		ret = PTR_ERR(ctx->fh.m2m_ctx);
		@@ -332,7 +541,12 @@ static int s5p_jpeg_open(struct file *file)
		}

		ctx->out_q.fmt = out_fmt;
		ctx->cap_q.fmt = s5p_jpeg_find_format(ctx->mode, V4L2_PIX_FMT_YUYV);
		ctx->cap_q.fmt = cap_fmt;

		ret = s5p_jpeg_controls_create(ctx);
		if (ret < 0)
		goto error;

		mutex_unlock(&jpeg->lock);
		return 0;

		@@ -352,11 +566,11 @@ static int s5p_jpeg_release(struct file *file)

		mutex_lock(&jpeg->lock);
		v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
		mutex_unlock(&jpeg->lock);
		v4l2_ctrl_handler_free(&ctx->ctrl_handler);
		v4l2_fh_del(&ctx->fh);
		v4l2_fh_exit(&ctx->fh);
		kfree(ctx);
		mutex_unlock(&jpeg->lock);

		return 0;
		}
		@@ -504,13 +718,13 @@ static int s5p_jpeg_querycap(struct file file, void priv,
		return 0;
		}

		static int enum_fmt(struct s5p_jpeg_fmt *formats, int n,
		static int enum_fmt(struct s5p_jpeg_fmt *sjpeg_formats, int n,
		struct v4l2_fmtdesc *f, u32 type)
		{
		int i, num = 0;

		for (i = 0; i < n; ++i) {
		if (formats[i].types & type) {
		if (sjpeg_formats[i].flags & type) {
		/* index-th format of type type found ? */
		if (num == f->index)
		break;
		@@ -524,8 +738,8 @@ static int enum_fmt(struct s5p_jpeg_fmt *formats, int n,
		if (i >= n)
		return -EINVAL;

		strlcpy(f->description, formats[i].name, sizeof(f->description));
		f->pixelformat = formats[i].fourcc;
		strlcpy(f->description, sjpeg_formats[i].name, sizeof(f->description));
		f->pixelformat = sjpeg_formats[i].fourcc;

		return 0;
		}
		@@ -536,10 +750,11 @@ static int s5p_jpeg_enum_fmt_vid_cap(struct file file, void priv,
		struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);

		if (ctx->mode == S5P_JPEG_ENCODE)
		return enum_fmt(formats_enc, NUM_FORMATS_ENC, f,
		MEM2MEM_CAPTURE);
		return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f,
		SJPEG_FMT_FLAG_ENC_CAPTURE);

		return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_CAPTURE);
		return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f,
		SJPEG_FMT_FLAG_DEC_CAPTURE);
		}

		static int s5p_jpeg_enum_fmt_vid_out(struct file file, void priv,
		@@ -548,10 +763,11 @@ static int s5p_jpeg_enum_fmt_vid_out(struct file file, void priv,
		struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);

		if (ctx->mode == S5P_JPEG_ENCODE)
		return enum_fmt(formats_enc, NUM_FORMATS_ENC, f,
		MEM2MEM_OUTPUT);
		return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f,
		SJPEG_FMT_FLAG_ENC_OUTPUT);

		return enum_fmt(formats_dec, NUM_FORMATS_DEC, f, MEM2MEM_OUTPUT);
		return enum_fmt(sjpeg_formats, SJPEG_NUM_FORMATS, f,
		SJPEG_FMT_FLAG_DEC_OUTPUT);
		}

		static struct s5p_jpeg_q_data get_q_data(struct s5p_jpeg_ctx ctx,
		@@ -598,29 +814,35 @@ static int s5p_jpeg_g_fmt(struct file file, void priv, struct v4l2_format *f)
		return 0;
		}

		static struct s5p_jpeg_fmt *s5p_jpeg_find_format(unsigned int mode,
		u32 pixelformat)
		static struct s5p_jpeg_fmt s5p_jpeg_find_format(struct s5p_jpeg_ctx ctx,
		u32 pixelformat, unsigned int fmt_type)
		{
		unsigned int k;
		struct s5p_jpeg_fmt *formats;
		int n;
		unsigned int k, fmt_flag, ver_flag;

		if (mode == S5P_JPEG_ENCODE) {
		formats = formats_enc;
		n = NUM_FORMATS_ENC;
		} else {
		formats = formats_dec;
		n = NUM_FORMATS_DEC;
		}
		if (ctx->mode == S5P_JPEG_ENCODE)
		fmt_flag = (fmt_type == FMT_TYPE_OUTPUT) ?
		SJPEG_FMT_FLAG_ENC_OUTPUT :
		SJPEG_FMT_FLAG_ENC_CAPTURE;
		else
		fmt_flag = (fmt_type == FMT_TYPE_OUTPUT) ?
		SJPEG_FMT_FLAG_DEC_OUTPUT :
		SJPEG_FMT_FLAG_DEC_CAPTURE;

		if (ctx->jpeg->variant->version == SJPEG_S5P)
		ver_flag = SJPEG_FMT_FLAG_S5P;
		else
		ver_flag = SJPEG_FMT_FLAG_EXYNOS4;

		for (k = 0; k < n; k++) {
		struct s5p_jpeg_fmt *fmt = &formats[k];
		if (fmt->fourcc == pixelformat)
		for (k = 0; k < ARRAY_SIZE(sjpeg_formats); k++) {
		struct s5p_jpeg_fmt *fmt = &sjpeg_formats[k];
		if (fmt->fourcc == pixelformat &&
		fmt->flags & fmt_flag &&
		fmt->flags & ver_flag) {
		return fmt;
		}
		}

		return NULL;

		}

		static void jpeg_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax,
		@@ -656,7 +878,7 @@ static int vidioc_try_fmt(struct v4l2_format f, struct s5p_jpeg_fmt fmt,

		/* V4L2 specification suggests the driver corrects the format struct
		* if any of the dimensions is unsupported */
		if (q_type == MEM2MEM_OUTPUT)
		if (q_type == FMT_TYPE_OUTPUT)
		jpeg_bound_align_image(&pix->width, S5P_JPEG_MIN_WIDTH,
		S5P_JPEG_MAX_WIDTH, 0,
		&pix->height, S5P_JPEG_MIN_HEIGHT,
		@@ -694,15 +916,16 @@ static int s5p_jpeg_try_fmt_vid_cap(struct file file, void priv,
		struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
		struct s5p_jpeg_fmt *fmt;

		fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat);
		if (!fmt \|\| !(fmt->types & MEM2MEM_CAPTURE)) {
		fmt = s5p_jpeg_find_format(ctx, f->fmt.pix.pixelformat,
		FMT_TYPE_CAPTURE);
		if (!fmt) {
		v4l2_err(&ctx->jpeg->v4l2_dev,
		"Fourcc format (0x%08x) invalid.\n",
		f->fmt.pix.pixelformat);
		return -EINVAL;
		}

		return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_CAPTURE);
		return vidioc_try_fmt(f, fmt, ctx, FMT_TYPE_CAPTURE);
		}

		static int s5p_jpeg_try_fmt_vid_out(struct file file, void priv,
		@@ -711,15 +934,16 @@ static int s5p_jpeg_try_fmt_vid_out(struct file file, void priv,
		struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);
		struct s5p_jpeg_fmt *fmt;

		fmt = s5p_jpeg_find_format(ctx->mode, f->fmt.pix.pixelformat);
		if (!fmt \|\| !(fmt->types & MEM2MEM_OUTPUT)) {
		fmt = s5p_jpeg_find_format(ctx, f->fmt.pix.pixelformat,
		FMT_TYPE_OUTPUT);
		if (!fmt) {
		v4l2_err(&ctx->jpeg->v4l2_dev,
		"Fourcc format (0x%08x) invalid.\n",
		f->fmt.pix.pixelformat);
		return -EINVAL;
		}

		return vidioc_try_fmt(f, fmt, ctx, MEM2MEM_OUTPUT);
		return vidioc_try_fmt(f, fmt, ctx, FMT_TYPE_OUTPUT);
		}

		static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx ct, struct v4l2_format f)
		@@ -727,6 +951,7 @@ static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx ct, struct v4l2_format f)
		struct vb2_queue *vq;
		struct s5p_jpeg_q_data *q_data = NULL;
		struct v4l2_pix_format *pix = &f->fmt.pix;
		unsigned int f_type;

		vq = v4l2_m2m_get_vq(ct->fh.m2m_ctx, f->type);
		if (!vq)
		@@ -740,7 +965,10 @@ static int s5p_jpeg_s_fmt(struct s5p_jpeg_ctx ct, struct v4l2_format f)
		return -EBUSY;
		}

		q_data->fmt = s5p_jpeg_find_format(ct->mode, pix->pixelformat);
		f_type = V4L2_TYPE_IS_OUTPUT(f->type) ?
		FMT_TYPE_OUTPUT : FMT_TYPE_CAPTURE;

		q_data->fmt = s5p_jpeg_find_format(ct, pix->pixelformat, f_type);
		q_data->w = pix->width;
		q_data->h = pix->height;
		if (q_data->fmt->fourcc != V4L2_PIX_FMT_JPEG)
		@@ -781,7 +1009,8 @@ static int s5p_jpeg_g_selection(struct file file, void priv,
		struct s5p_jpeg_ctx *ctx = fh_to_ctx(priv);

		if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
		s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
		ctx->jpeg->variant->version != SJPEG_S5P)
		return -EINVAL;

		/* For JPEG blob active == default == bounds */
		@@ -1018,6 +1247,107 @@ static void s5p_jpeg_device_run(void *priv)
		spin_unlock_irqrestore(&ctx->jpeg->slock, flags);
		}

		static void exynos4_jpeg_set_img_addr(struct s5p_jpeg_ctx *ctx)
		{
		struct s5p_jpeg *jpeg = ctx->jpeg;
		struct s5p_jpeg_fmt *fmt;
		struct vb2_buffer *vb;
		struct s5p_jpeg_addr jpeg_addr;
		u32 pix_size, padding_bytes = 0;

		pix_size = ctx->cap_q.w * ctx->cap_q.h;

		if (ctx->mode == S5P_JPEG_ENCODE) {
		vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
		fmt = ctx->out_q.fmt;
		if (ctx->out_q.w % 2 && fmt->h_align > 0)
		padding_bytes = ctx->out_q.h;
		} else {
		fmt = ctx->cap_q.fmt;
		vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
		}

		jpeg_addr.y = vb2_dma_contig_plane_dma_addr(vb, 0);

		if (fmt->colplanes == 2) {
		jpeg_addr.cb = jpeg_addr.y + pix_size - padding_bytes;
		} else if (fmt->colplanes == 3) {
		jpeg_addr.cb = jpeg_addr.y + pix_size;
		if (fmt->fourcc == V4L2_PIX_FMT_YUV420)
		jpeg_addr.cr = jpeg_addr.cb + pix_size / 4;
		else
		jpeg_addr.cr = jpeg_addr.cb + pix_size / 2;
		}

		exynos4_jpeg_set_frame_buf_address(jpeg->regs, &jpeg_addr);
		}

		static void exynos4_jpeg_set_jpeg_addr(struct s5p_jpeg_ctx *ctx)
		{
		struct s5p_jpeg *jpeg = ctx->jpeg;
		struct vb2_buffer *vb;
		unsigned int jpeg_addr = 0;

		if (ctx->mode == S5P_JPEG_ENCODE)
		vb = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
		else
		vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);

		jpeg_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
		exynos4_jpeg_set_stream_buf_address(jpeg->regs, jpeg_addr);
		}

		static void exynos4_jpeg_device_run(void *priv)
		{
		struct s5p_jpeg_ctx *ctx = priv;
		struct s5p_jpeg *jpeg = ctx->jpeg;
		unsigned int bitstream_size;
		unsigned long flags;

		spin_lock_irqsave(&ctx->jpeg->slock, flags);

		if (ctx->mode == S5P_JPEG_ENCODE) {
		exynos4_jpeg_sw_reset(jpeg->regs);
		exynos4_jpeg_set_interrupt(jpeg->regs);
		exynos4_jpeg_set_huf_table_enable(jpeg->regs, 1);

		exynos4_jpeg_set_huff_tbl(jpeg->regs);

		/*
		* JPEG IP allows storing 4 quantization tables
		* We fill table 0 for luma and table 1 for chroma
		*/
		exynos4_jpeg_set_qtbl_lum(jpeg->regs, ctx->compr_quality);
		exynos4_jpeg_set_qtbl_chr(jpeg->regs, ctx->compr_quality);

		exynos4_jpeg_set_encode_tbl_select(jpeg->regs,
		ctx->compr_quality);
		exynos4_jpeg_set_stream_size(jpeg->regs, ctx->cap_q.w,
		ctx->cap_q.h);

		exynos4_jpeg_set_enc_out_fmt(jpeg->regs, ctx->subsampling);
		exynos4_jpeg_set_img_fmt(jpeg->regs, ctx->out_q.fmt->fourcc);
		exynos4_jpeg_set_img_addr(ctx);
		exynos4_jpeg_set_jpeg_addr(ctx);
		exynos4_jpeg_set_encode_hoff_cnt(jpeg->regs,
		ctx->out_q.fmt->fourcc);
		} else {
		exynos4_jpeg_sw_reset(jpeg->regs);
		exynos4_jpeg_set_interrupt(jpeg->regs);
		exynos4_jpeg_set_img_addr(ctx);
		exynos4_jpeg_set_jpeg_addr(ctx);
		exynos4_jpeg_set_img_fmt(jpeg->regs, ctx->cap_q.fmt->fourcc);

		bitstream_size = DIV_ROUND_UP(ctx->out_q.size, 32);

		exynos4_jpeg_set_dec_bitstream_size(jpeg->regs, bitstream_size);
		}

		exynos4_jpeg_set_enc_dec_mode(jpeg->regs, ctx->mode);

		spin_unlock_irqrestore(&ctx->jpeg->slock, flags);
		}

		static int s5p_jpeg_job_ready(void *priv)
		{
		struct s5p_jpeg_ctx *ctx = priv;
		@@ -1035,6 +1365,12 @@ static struct v4l2_m2m_ops s5p_jpeg_m2m_ops = {
		.device_run = s5p_jpeg_device_run,
		.job_ready = s5p_jpeg_job_ready,
		.job_abort = s5p_jpeg_job_abort,
		}
		;
		static struct v4l2_m2m_ops exynos_jpeg_m2m_ops = {
		.device_run = exynos4_jpeg_device_run,
		.job_ready = s5p_jpeg_job_ready,
		.job_abort = s5p_jpeg_job_abort,
		};

		/*
		@@ -1241,6 +1577,69 @@ static irqreturn_t s5p_jpeg_irq(int irq, void *dev_id)
		return IRQ_HANDLED;
		}

		static irqreturn_t exynos4_jpeg_irq(int irq, void *priv)
		{
		unsigned int int_status;
		struct vb2_buffer src_vb, dst_vb;
		struct s5p_jpeg *jpeg = priv;
		struct s5p_jpeg_ctx *curr_ctx;
		unsigned long payload_size = 0;

		spin_lock(&jpeg->slock);

		curr_ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev);

		src_vb = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx);
		dst_vb = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx);

		int_status = exynos4_jpeg_get_int_status(jpeg->regs);

		if (int_status) {
		switch (int_status & 0x1f) {
		case 0x1:
		jpeg->irq_ret = ERR_PROT;
		break;
		case 0x2:
		jpeg->irq_ret = OK_ENC_OR_DEC;
		break;
		case 0x4:
		jpeg->irq_ret = ERR_DEC_INVALID_FORMAT;
		break;
		case 0x8:
		jpeg->irq_ret = ERR_MULTI_SCAN;
		break;
		case 0x10:
		jpeg->irq_ret = ERR_FRAME;
		break;
		default:
		jpeg->irq_ret = ERR_UNKNOWN;
		break;
		}
		} else {
		jpeg->irq_ret = ERR_UNKNOWN;
		}

		if (jpeg->irq_ret == OK_ENC_OR_DEC) {
		if (curr_ctx->mode == S5P_JPEG_ENCODE) {
		payload_size = exynos4_jpeg_get_stream_size(jpeg->regs);
		vb2_set_plane_payload(dst_vb, 0, payload_size);
		}
		v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_DONE);
		v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_DONE);
		} else {
		v4l2_m2m_buf_done(src_vb, VB2_BUF_STATE_ERROR);
		v4l2_m2m_buf_done(dst_vb, VB2_BUF_STATE_ERROR);
		}

		v4l2_m2m_job_finish(jpeg->m2m_dev, curr_ctx->fh.m2m_ctx);
		curr_ctx->subsampling = exynos4_jpeg_get_frame_fmt(jpeg->regs);

		spin_unlock(&jpeg->slock);
		return IRQ_HANDLED;
		}

		static void jpeg_get_drv_data(struct platform_device pdev);

		/*
		* ============================================================================
		* Driver basic infrastructure
		@@ -1251,13 +1650,19 @@ static int s5p_jpeg_probe(struct platform_device *pdev)
		{
		struct s5p_jpeg *jpeg;
		struct resource *res;
		struct v4l2_m2m_ops *samsung_jpeg_m2m_ops;
		int ret;

		if (!pdev->dev.of_node)
		return -ENODEV;

		/* JPEG IP abstraction struct */
		jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL);
		if (!jpeg)
		return -ENOMEM;

		jpeg->variant = jpeg_get_drv_data(pdev);

		mutex_init(&jpeg->lock);
		spin_lock_init(&jpeg->slock);
		jpeg->dev = &pdev->dev;
		@@ -1276,8 +1681,8 @@ static int s5p_jpeg_probe(struct platform_device *pdev)
		return ret;
		}

		ret = devm_request_irq(&pdev->dev, jpeg->irq, s5p_jpeg_irq, 0,
		dev_name(&pdev->dev), jpeg);
		ret = devm_request_irq(&pdev->dev, jpeg->irq, jpeg->variant->jpeg_irq,
		0, dev_name(&pdev->dev), jpeg);
		if (ret) {
		dev_err(&pdev->dev, "cannot claim IRQ %d\n", jpeg->irq);
		return ret;
		@@ -1299,8 +1704,13 @@ static int s5p_jpeg_probe(struct platform_device *pdev)
		goto clk_get_rollback;
		}

		if (jpeg->variant->version == SJPEG_S5P)
		samsung_jpeg_m2m_ops = &s5p_jpeg_m2m_ops;
		else
		samsung_jpeg_m2m_ops = &exynos_jpeg_m2m_ops;

		/* mem2mem device */
		jpeg->m2m_dev = v4l2_m2m_init(&s5p_jpeg_m2m_ops);
		jpeg->m2m_dev = v4l2_m2m_init(samsung_jpeg_m2m_ops);
		if (IS_ERR(jpeg->m2m_dev)) {
		v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n");
		ret = PTR_ERR(jpeg->m2m_dev);
		@@ -1448,12 +1858,16 @@ static int s5p_jpeg_runtime_resume(struct device *dev)

		/*
		* JPEG IP allows storing two Huffman tables for each component
		* We fill table 0 for each component
		* We fill table 0 for each component and do this here only
		* for S5PC210 device as Exynos4x12 requires programming its
		* Huffman tables each time the encoding process is initialized.
		*/
		if (jpeg->variant->version == SJPEG_S5P) {
		s5p_jpeg_set_hdctbl(jpeg->regs);
		s5p_jpeg_set_hdctblg(jpeg->regs);
		s5p_jpeg_set_hactbl(jpeg->regs);
		s5p_jpeg_set_hactblg(jpeg->regs);
		}

		spin_unlock_irqrestore(&jpeg->slock, flags);

		@@ -1482,19 +1896,51 @@ static const struct dev_pm_ops s5p_jpeg_pm_ops = {
		};

		#ifdef CONFIG_OF
		static const struct of_device_id s5p_jpeg_of_match[] = {
		{ .compatible = "samsung,s5pv210-jpeg" },
		{ .compatible = "samsung,exynos4210-jpeg" },
		{ /* sentinel */ },
		static struct s5p_jpeg_variant s5p_jpeg_drvdata = {
		.version = SJPEG_S5P,
		.jpeg_irq = s5p_jpeg_irq,
		};
		MODULE_DEVICE_TABLE(of, s5p_jpeg_of_match);

		static struct s5p_jpeg_variant exynos4_jpeg_drvdata = {
		.version = SJPEG_EXYNOS4,
		.jpeg_irq = exynos4_jpeg_irq,
		};

		static const struct of_device_id samsung_jpeg_match[] = {
		{
		.compatible = "samsung,s5pv210-jpeg",
		.data = &s5p_jpeg_drvdata,
		}, {
		.compatible = "samsung,exynos4210-jpeg",
		.data = &s5p_jpeg_drvdata,
		}, {
		.compatible = "samsung,exynos4212-jpeg",
		.data = &exynos4_jpeg_drvdata,
		},
		{},
		};

		MODULE_DEVICE_TABLE(of, samsung_jpeg_match);

		static void jpeg_get_drv_data(struct platform_device pdev)
		{
		struct s5p_jpeg_variant *driver_data = NULL;
		const struct of_device_id *match;

		match = of_match_node(of_match_ptr(samsung_jpeg_match),
		pdev->dev.of_node);
		if (match)
		driver_data = (struct s5p_jpeg_variant *)match->data;

		return driver_data;
		}
		#endif

		static struct platform_driver s5p_jpeg_driver = {
		.probe = s5p_jpeg_probe,
		.remove = s5p_jpeg_remove,
		.driver = {
		.of_match_table = of_match_ptr(s5p_jpeg_of_match),
		.of_match_table = of_match_ptr(samsung_jpeg_match),
		.owner = THIS_MODULE,
		.name = S5P_JPEG_M2M_NAME,
		.pm = &s5p_jpeg_pm_ops,
		@@ -1504,5 +1950,6 @@ static struct platform_driver s5p_jpeg_driver = {
		module_platform_driver(s5p_jpeg_driver);

		MODULE_AUTHOR("Andrzej Pietrasiewicz <andrzej.p@samsung.com>");
		MODULE_AUTHOR("Jacek Anaszewski <j.anaszewski@samsung.com>");
		MODULE_DESCRIPTION("Samsung JPEG codec driver");
		MODULE_LICENSE("GPL");