![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 2 normalized pattern(s): 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 published by the free software foundation 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 published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
270 lines
6.9 KiB
C
270 lines
6.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* linux/drivers/media/platform/s5p-jpeg/jpeg-core.h
|
|
*
|
|
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
*
|
|
* Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
|
|
*/
|
|
|
|
#ifndef JPEG_CORE_H_
|
|
#define JPEG_CORE_H_
|
|
|
|
#include <linux/interrupt.h>
|
|
#include <media/v4l2-device.h>
|
|
#include <media/v4l2-fh.h>
|
|
#include <media/v4l2-ctrls.h>
|
|
|
|
#define S5P_JPEG_M2M_NAME "s5p-jpeg"
|
|
|
|
#define JPEG_MAX_CLOCKS 4
|
|
|
|
/* JPEG compression quality setting */
|
|
#define S5P_JPEG_COMPR_QUAL_BEST 0
|
|
#define S5P_JPEG_COMPR_QUAL_WORST 3
|
|
|
|
/* JPEG RGB to YCbCr conversion matrix coefficients */
|
|
#define S5P_JPEG_COEF11 0x4d
|
|
#define S5P_JPEG_COEF12 0x97
|
|
#define S5P_JPEG_COEF13 0x1e
|
|
#define S5P_JPEG_COEF21 0x2c
|
|
#define S5P_JPEG_COEF22 0x57
|
|
#define S5P_JPEG_COEF23 0x83
|
|
#define S5P_JPEG_COEF31 0x83
|
|
#define S5P_JPEG_COEF32 0x6e
|
|
#define S5P_JPEG_COEF33 0x13
|
|
|
|
#define EXYNOS3250_IRQ_TIMEOUT 0x10000000
|
|
|
|
/* a selection of JPEG markers */
|
|
#define TEM 0x01
|
|
#define SOF0 0xc0
|
|
#define DHT 0xc4
|
|
#define RST 0xd0
|
|
#define SOI 0xd8
|
|
#define EOI 0xd9
|
|
#define SOS 0xda
|
|
#define DQT 0xdb
|
|
#define DHP 0xde
|
|
|
|
/* Flags that indicate a format can be used for capture/output */
|
|
#define SJPEG_FMT_FLAG_ENC_CAPTURE (1 << 0)
|
|
#define SJPEG_FMT_FLAG_ENC_OUTPUT (1 << 1)
|
|
#define SJPEG_FMT_FLAG_DEC_CAPTURE (1 << 2)
|
|
#define SJPEG_FMT_FLAG_DEC_OUTPUT (1 << 3)
|
|
#define SJPEG_FMT_FLAG_S5P (1 << 4)
|
|
#define SJPEG_FMT_FLAG_EXYNOS3250 (1 << 5)
|
|
#define SJPEG_FMT_FLAG_EXYNOS4 (1 << 6)
|
|
#define SJPEG_FMT_RGB (1 << 7)
|
|
#define SJPEG_FMT_NON_RGB (1 << 8)
|
|
|
|
#define S5P_JPEG_ENCODE 0
|
|
#define S5P_JPEG_DECODE 1
|
|
#define S5P_JPEG_DISABLE -1
|
|
|
|
#define FMT_TYPE_OUTPUT 0
|
|
#define FMT_TYPE_CAPTURE 1
|
|
|
|
#define SJPEG_SUBSAMPLING_444 0x11
|
|
#define SJPEG_SUBSAMPLING_422 0x21
|
|
#define SJPEG_SUBSAMPLING_420 0x22
|
|
|
|
#define S5P_JPEG_MAX_MARKER 4
|
|
|
|
/* Version numbers */
|
|
enum sjpeg_version {
|
|
SJPEG_S5P,
|
|
SJPEG_EXYNOS3250,
|
|
SJPEG_EXYNOS4,
|
|
SJPEG_EXYNOS5420,
|
|
SJPEG_EXYNOS5433,
|
|
};
|
|
|
|
enum exynos4_jpeg_result {
|
|
OK_ENC_OR_DEC,
|
|
ERR_PROT,
|
|
ERR_DEC_INVALID_FORMAT,
|
|
ERR_MULTI_SCAN,
|
|
ERR_FRAME,
|
|
ERR_UNKNOWN,
|
|
};
|
|
|
|
enum exynos4_jpeg_img_quality_level {
|
|
QUALITY_LEVEL_1 = 0, /* high */
|
|
QUALITY_LEVEL_2,
|
|
QUALITY_LEVEL_3,
|
|
QUALITY_LEVEL_4, /* low */
|
|
};
|
|
|
|
enum s5p_jpeg_ctx_state {
|
|
JPEGCTX_RUNNING = 0,
|
|
JPEGCTX_RESOLUTION_CHANGE,
|
|
};
|
|
|
|
/**
|
|
* struct s5p_jpeg - JPEG IP abstraction
|
|
* @lock: the mutex protecting this structure
|
|
* @slock: spinlock protecting the device contexts
|
|
* @v4l2_dev: v4l2 device for mem2mem mode
|
|
* @vfd_encoder: video device node for encoder mem2mem mode
|
|
* @vfd_decoder: video device node for decoder mem2mem mode
|
|
* @m2m_dev: v4l2 mem2mem device data
|
|
* @regs: JPEG IP registers mapping
|
|
* @irq: JPEG IP irq
|
|
* @clocks: JPEG IP clock(s)
|
|
* @dev: JPEG IP struct device
|
|
* @variant: driver variant to be used
|
|
* @irq_status interrupt flags set during single encode/decode
|
|
operation
|
|
|
|
*/
|
|
struct s5p_jpeg {
|
|
struct mutex lock;
|
|
spinlock_t slock;
|
|
|
|
struct v4l2_device v4l2_dev;
|
|
struct video_device *vfd_encoder;
|
|
struct video_device *vfd_decoder;
|
|
struct v4l2_m2m_dev *m2m_dev;
|
|
|
|
void __iomem *regs;
|
|
unsigned int irq;
|
|
enum exynos4_jpeg_result irq_ret;
|
|
struct clk *clocks[JPEG_MAX_CLOCKS];
|
|
struct device *dev;
|
|
struct s5p_jpeg_variant *variant;
|
|
u32 irq_status;
|
|
};
|
|
|
|
struct s5p_jpeg_variant {
|
|
unsigned int version;
|
|
unsigned int fmt_ver_flag;
|
|
unsigned int hw3250_compat:1;
|
|
unsigned int htbl_reinit:1;
|
|
unsigned int hw_ex4_compat:1;
|
|
struct v4l2_m2m_ops *m2m_ops;
|
|
irqreturn_t (*jpeg_irq)(int irq, void *priv);
|
|
const char *clk_names[JPEG_MAX_CLOCKS];
|
|
int num_clocks;
|
|
};
|
|
|
|
/**
|
|
* struct jpeg_fmt - driver's internal color format data
|
|
* @name: format description
|
|
* @fourcc: the fourcc code, 0 if not applicable
|
|
* @depth: number of bits per pixel
|
|
* @colplanes: number of color planes (1 for packed formats)
|
|
* @h_align: horizontal alignment order (align to 2^h_align)
|
|
* @v_align: vertical alignment order (align to 2^v_align)
|
|
* @flags: flags describing format applicability
|
|
*/
|
|
struct s5p_jpeg_fmt {
|
|
char *name;
|
|
u32 fourcc;
|
|
int depth;
|
|
int colplanes;
|
|
int memplanes;
|
|
int h_align;
|
|
int v_align;
|
|
int subsampling;
|
|
u32 flags;
|
|
};
|
|
|
|
/**
|
|
* s5p_jpeg_marker - collection of markers from jpeg header
|
|
* @marker: markers' positions relative to the buffer beginning
|
|
* @len: markers' payload lengths (without length field)
|
|
* @n: number of markers in collection
|
|
*/
|
|
struct s5p_jpeg_marker {
|
|
u32 marker[S5P_JPEG_MAX_MARKER];
|
|
u32 len[S5P_JPEG_MAX_MARKER];
|
|
u32 n;
|
|
};
|
|
|
|
/**
|
|
* s5p_jpeg_q_data - parameters of one queue
|
|
* @fmt: driver-specific format of this queue
|
|
* @w: image width
|
|
* @h: image height
|
|
* @sos: SOS marker's position relative to the buffer beginning
|
|
* @dht: DHT markers' positions relative to the buffer beginning
|
|
* @dqt: DQT markers' positions relative to the buffer beginning
|
|
* @sof: SOF0 marker's position relative to the buffer beginning
|
|
* @sof_len: SOF0 marker's payload length (without length field itself)
|
|
* @components: number of image components
|
|
* @size: image buffer size in bytes
|
|
*/
|
|
struct s5p_jpeg_q_data {
|
|
struct s5p_jpeg_fmt *fmt;
|
|
u32 w;
|
|
u32 h;
|
|
u32 sos;
|
|
struct s5p_jpeg_marker dht;
|
|
struct s5p_jpeg_marker dqt;
|
|
u32 sof;
|
|
u32 sof_len;
|
|
u32 components;
|
|
u32 size;
|
|
};
|
|
|
|
/**
|
|
* s5p_jpeg_ctx - the device context data
|
|
* @jpeg: JPEG IP device for this context
|
|
* @mode: compression (encode) operation or decompression (decode)
|
|
* @compr_quality: destination image quality in compression (encode) mode
|
|
* @restart_interval: JPEG restart interval for JPEG encoding
|
|
* @subsampling: subsampling of a raw format or a JPEG
|
|
* @out_q: source (output) queue information
|
|
* @cap_q: destination (capture) queue queue information
|
|
* @scale_factor: scale factor for JPEG decoding
|
|
* @crop_rect: a rectangle representing crop area of the output buffer
|
|
* @fh: V4L2 file handle
|
|
* @hdr_parsed: set if header has been parsed during decompression
|
|
* @crop_altered: set if crop rectangle has been altered by the user space
|
|
* @ctrl_handler: controls handler
|
|
* @state: state of the context
|
|
*/
|
|
struct s5p_jpeg_ctx {
|
|
struct s5p_jpeg *jpeg;
|
|
unsigned int mode;
|
|
unsigned short compr_quality;
|
|
unsigned short restart_interval;
|
|
unsigned short subsampling;
|
|
struct s5p_jpeg_q_data out_q;
|
|
struct s5p_jpeg_q_data cap_q;
|
|
unsigned int scale_factor;
|
|
struct v4l2_rect crop_rect;
|
|
struct v4l2_fh fh;
|
|
bool hdr_parsed;
|
|
bool crop_altered;
|
|
struct v4l2_ctrl_handler ctrl_handler;
|
|
enum s5p_jpeg_ctx_state state;
|
|
};
|
|
|
|
/**
|
|
* s5p_jpeg_buffer - description of memory containing input JPEG data
|
|
* @size: buffer size
|
|
* @curr: current position in the buffer
|
|
* @data: pointer to the data
|
|
*/
|
|
struct s5p_jpeg_buffer {
|
|
unsigned long size;
|
|
unsigned long curr;
|
|
unsigned long data;
|
|
};
|
|
|
|
/**
|
|
* struct s5p_jpeg_addr - JPEG converter physical address set for DMA
|
|
* @y: luminance plane physical address
|
|
* @cb: Cb plane physical address
|
|
* @cr: Cr plane physical address
|
|
*/
|
|
struct s5p_jpeg_addr {
|
|
u32 y;
|
|
u32 cb;
|
|
u32 cr;
|
|
};
|
|
|
|
#endif /* JPEG_CORE_H */
|