blob: 6a5c8f6c688e5d621d8d428e4454dc6d67d43191 [file] [log] [blame]
* Coda multi-standard codec IP
* Copyright (C) 2012 Vista Silicon S.L.
* Javier Martin, <>
* Xavier Duret
* Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
* 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.
#ifndef __CODA_H__
#define __CODA_H__
#include <linux/debugfs.h>
#include <linux/irqreturn.h>
#include <linux/mutex.h>
#include <linux/kfifo.h>
#include <linux/videodev2.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/videobuf2-core.h>
#include "coda_regs.h"
enum {
V4L2_M2M_SRC = 0,
V4L2_M2M_DST = 1,
enum coda_inst_type {
enum coda_product {
CODA_DX6 = 0xf001,
CODA_7541 = 0xf012,
CODA_960 = 0xf020,
struct coda_video_device;
struct coda_devtype {
char *firmware;
enum coda_product product;
const struct coda_codec *codecs;
unsigned int num_codecs;
const struct coda_video_device **vdevs;
unsigned int num_vdevs;
size_t workbuf_size;
size_t tempbuf_size;
size_t iram_size;
struct coda_aux_buf {
void *vaddr;
dma_addr_t paddr;
u32 size;
struct debugfs_blob_wrapper blob;
struct dentry *dentry;
struct coda_dev {
struct v4l2_device v4l2_dev;
struct video_device vfd[5];
struct platform_device *plat_dev;
const struct coda_devtype *devtype;
void __iomem *regs_base;
struct clk *clk_per;
struct clk *clk_ahb;
struct reset_control *rstc;
struct coda_aux_buf codebuf;
struct coda_aux_buf tempbuf;
struct coda_aux_buf workbuf;
struct gen_pool *iram_pool;
struct coda_aux_buf iram;
spinlock_t irqlock;
struct mutex dev_mutex;
struct mutex coda_mutex;
struct workqueue_struct *workqueue;
struct v4l2_m2m_dev *m2m_dev;
struct vb2_alloc_ctx *alloc_ctx;
struct list_head instances;
unsigned long instance_mask;
struct dentry *debugfs_root;
struct coda_codec {
u32 mode;
u32 src_fourcc;
u32 dst_fourcc;
u32 max_w;
u32 max_h;
struct coda_huff_tab;
struct coda_params {
u8 rot_mode;
u8 h264_intra_qp;
u8 h264_inter_qp;
u8 h264_min_qp;
u8 h264_max_qp;
u8 h264_deblk_enabled;
u8 h264_deblk_alpha;
u8 h264_deblk_beta;
u8 mpeg4_intra_qp;
u8 mpeg4_inter_qp;
u8 gop_size;
int intra_refresh;
u8 jpeg_quality;
u8 jpeg_restart_interval;
u8 *jpeg_qmat_tab[3];
int codec_mode;
int codec_mode_aux;
enum v4l2_mpeg_video_multi_slice_mode slice_mode;
u32 framerate;
u16 bitrate;
u32 slice_max_bits;
u32 slice_max_mb;
struct coda_buffer_meta {
struct list_head list;
u32 sequence;
struct v4l2_timecode timecode;
struct timeval timestamp;
u32 start;
u32 end;
/* Per-queue, driver-specific private data */
struct coda_q_data {
unsigned int width;
unsigned int height;
unsigned int bytesperline;
unsigned int sizeimage;
unsigned int fourcc;
struct v4l2_rect rect;
struct coda_iram_info {
u32 axi_sram_use;
phys_addr_t buf_bit_use;
phys_addr_t buf_ip_ac_dc_use;
phys_addr_t buf_dbk_y_use;
phys_addr_t buf_dbk_c_use;
phys_addr_t buf_ovl_use;
phys_addr_t buf_btp_use;
phys_addr_t search_ram_paddr;
int search_ram_size;
int remaining;
phys_addr_t next_paddr;
struct gdi_tiled_map {
int xy2ca_map[16];
int xy2ba_map[16];
int xy2ra_map[16];
int rbc2axi_map[32];
int xy2rbc_config;
int map_type;
struct coda_ctx;
struct coda_context_ops {
int (*queue_init)(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq);
int (*reqbufs)(struct coda_ctx *ctx, struct v4l2_requestbuffers *rb);
int (*start_streaming)(struct coda_ctx *ctx);
int (*prepare_run)(struct coda_ctx *ctx);
void (*finish_run)(struct coda_ctx *ctx);
void (*seq_end_work)(struct work_struct *work);
void (*release)(struct coda_ctx *ctx);
struct coda_ctx {
struct coda_dev *dev;
struct mutex buffer_mutex;
struct list_head list;
struct work_struct pic_run_work;
struct work_struct seq_end_work;
struct completion completion;
const struct coda_video_device *cvd;
const struct coda_context_ops *ops;
int aborting;
int initialized;
int streamon_out;
int streamon_cap;
u32 qsequence;
u32 osequence;
u32 sequence_offset;
struct coda_q_data q_data[2];
enum coda_inst_type inst_type;
const struct coda_codec *codec;
enum v4l2_colorspace colorspace;
struct coda_params params;
struct v4l2_ctrl_handler ctrls;
struct v4l2_fh fh;
int gopcounter;
int runcounter;
char vpu_header[3][64];
int vpu_header_size[3];
struct kfifo bitstream_fifo;
struct mutex bitstream_mutex;
struct coda_aux_buf bitstream;
bool hold;
struct coda_aux_buf parabuf;
struct coda_aux_buf psbuf;
struct coda_aux_buf slicebuf;
struct coda_aux_buf internal_frames[CODA_MAX_FRAMEBUFFERS];
u32 frame_types[CODA_MAX_FRAMEBUFFERS];
struct coda_buffer_meta frame_metas[CODA_MAX_FRAMEBUFFERS];
u32 frame_errors[CODA_MAX_FRAMEBUFFERS];
struct list_head buffer_meta_list;
struct coda_aux_buf workbuf;
int num_internal_frames;
int idx;
int reg_idx;
struct coda_iram_info iram_info;
struct gdi_tiled_map tiled_map;
u32 bit_stream_param;
u32 frm_dis_flg;
u32 frame_mem_ctrl;
int display_idx;
struct dentry *debugfs_entry;
bool use_bit;
extern int coda_debug;
void coda_write(struct coda_dev *dev, u32 data, u32 reg);
unsigned int coda_read(struct coda_dev *dev, u32 reg);
void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
struct vb2_buffer *buf, unsigned int reg_y);
int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
size_t size, const char *name, struct dentry *parent);
void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq);
int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
struct vb2_queue *dst_vq);
int coda_hw_reset(struct coda_ctx *ctx);
void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming);
void coda_set_gdi_regs(struct coda_ctx *ctx);
static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
enum v4l2_buf_type type)
switch (type) {
return &(ctx->q_data[V4L2_M2M_SRC]);
return &(ctx->q_data[V4L2_M2M_DST]);
return NULL;
const char *coda_product_name(int product);
int coda_check_firmware(struct coda_dev *dev);
static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
return kfifo_len(&ctx->bitstream_fifo);
void coda_bit_stream_end_flag(struct coda_ctx *ctx);
int coda_h264_padding(int size, char *p);
bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
int coda_jpeg_write_tables(struct coda_ctx *ctx);
void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
extern const struct coda_context_ops coda_bit_encode_ops;
extern const struct coda_context_ops coda_bit_decode_ops;
irqreturn_t coda_irq_handler(int irq, void *data);
#endif /* __CODA_H__ */