linux/drivers/media/platform/coda/coda.h
<<
>>
Prefs
   1/*
   2 * Coda multi-standard codec IP
   3 *
   4 * Copyright (C) 2012 Vista Silicon S.L.
   5 *    Javier Martin, <javier.martin@vista-silicon.com>
   6 *    Xavier Duret
   7 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License as published by
  11 * the Free Software Foundation; either version 2 of the License, or
  12 * (at your option) any later version.
  13 */
  14
  15#ifndef __CODA_H__
  16#define __CODA_H__
  17
  18#include <linux/debugfs.h>
  19#include <linux/irqreturn.h>
  20#include <linux/mutex.h>
  21#include <linux/kfifo.h>
  22#include <linux/videodev2.h>
  23
  24#include <media/v4l2-ctrls.h>
  25#include <media/v4l2-device.h>
  26#include <media/v4l2-fh.h>
  27#include <media/videobuf2-v4l2.h>
  28
  29#include "coda_regs.h"
  30
  31#define CODA_MAX_FRAMEBUFFERS   8
  32#define FMO_SLICE_SAVE_BUF_SIZE (32)
  33
  34enum {
  35        V4L2_M2M_SRC = 0,
  36        V4L2_M2M_DST = 1,
  37};
  38
  39enum coda_inst_type {
  40        CODA_INST_ENCODER,
  41        CODA_INST_DECODER,
  42};
  43
  44enum coda_product {
  45        CODA_DX6 = 0xf001,
  46        CODA_7541 = 0xf012,
  47        CODA_960 = 0xf020,
  48};
  49
  50struct coda_video_device;
  51
  52struct coda_devtype {
  53        char                    *firmware[2];
  54        enum coda_product       product;
  55        const struct coda_codec *codecs;
  56        unsigned int            num_codecs;
  57        const struct coda_video_device **vdevs;
  58        unsigned int            num_vdevs;
  59        size_t                  workbuf_size;
  60        size_t                  tempbuf_size;
  61        size_t                  iram_size;
  62};
  63
  64struct coda_aux_buf {
  65        void                    *vaddr;
  66        dma_addr_t              paddr;
  67        u32                     size;
  68        struct debugfs_blob_wrapper blob;
  69        struct dentry           *dentry;
  70};
  71
  72struct coda_dev {
  73        struct v4l2_device      v4l2_dev;
  74        struct video_device     vfd[5];
  75        struct platform_device  *plat_dev;
  76        const struct coda_devtype *devtype;
  77        int                     firmware;
  78
  79        void __iomem            *regs_base;
  80        struct clk              *clk_per;
  81        struct clk              *clk_ahb;
  82        struct reset_control    *rstc;
  83
  84        struct coda_aux_buf     codebuf;
  85        struct coda_aux_buf     tempbuf;
  86        struct coda_aux_buf     workbuf;
  87        struct gen_pool         *iram_pool;
  88        struct coda_aux_buf     iram;
  89
  90        spinlock_t              irqlock;
  91        struct mutex            dev_mutex;
  92        struct mutex            coda_mutex;
  93        struct workqueue_struct *workqueue;
  94        struct v4l2_m2m_dev     *m2m_dev;
  95        struct list_head        instances;
  96        unsigned long           instance_mask;
  97        struct dentry           *debugfs_root;
  98};
  99
 100struct coda_codec {
 101        u32 mode;
 102        u32 src_fourcc;
 103        u32 dst_fourcc;
 104        u32 max_w;
 105        u32 max_h;
 106};
 107
 108struct coda_huff_tab;
 109
 110struct coda_params {
 111        u8                      rot_mode;
 112        u8                      h264_intra_qp;
 113        u8                      h264_inter_qp;
 114        u8                      h264_min_qp;
 115        u8                      h264_max_qp;
 116        u8                      h264_deblk_enabled;
 117        u8                      h264_deblk_alpha;
 118        u8                      h264_deblk_beta;
 119        u8                      mpeg4_intra_qp;
 120        u8                      mpeg4_inter_qp;
 121        u8                      gop_size;
 122        int                     intra_refresh;
 123        u8                      jpeg_quality;
 124        u8                      jpeg_restart_interval;
 125        u8                      *jpeg_qmat_tab[3];
 126        int                     codec_mode;
 127        int                     codec_mode_aux;
 128        enum v4l2_mpeg_video_multi_slice_mode slice_mode;
 129        u32                     framerate;
 130        u16                     bitrate;
 131        u16                     vbv_delay;
 132        u32                     vbv_size;
 133        u32                     slice_max_bits;
 134        u32                     slice_max_mb;
 135};
 136
 137struct coda_buffer_meta {
 138        struct list_head        list;
 139        u32                     sequence;
 140        struct v4l2_timecode    timecode;
 141        u64                     timestamp;
 142        u32                     start;
 143        u32                     end;
 144};
 145
 146/* Per-queue, driver-specific private data */
 147struct coda_q_data {
 148        unsigned int            width;
 149        unsigned int            height;
 150        unsigned int            bytesperline;
 151        unsigned int            sizeimage;
 152        unsigned int            fourcc;
 153        struct v4l2_rect        rect;
 154};
 155
 156struct coda_iram_info {
 157        u32             axi_sram_use;
 158        phys_addr_t     buf_bit_use;
 159        phys_addr_t     buf_ip_ac_dc_use;
 160        phys_addr_t     buf_dbk_y_use;
 161        phys_addr_t     buf_dbk_c_use;
 162        phys_addr_t     buf_ovl_use;
 163        phys_addr_t     buf_btp_use;
 164        phys_addr_t     search_ram_paddr;
 165        int             search_ram_size;
 166        int             remaining;
 167        phys_addr_t     next_paddr;
 168};
 169
 170#define GDI_LINEAR_FRAME_MAP 0
 171#define GDI_TILED_FRAME_MB_RASTER_MAP 1
 172
 173struct coda_ctx;
 174
 175struct coda_context_ops {
 176        int (*queue_init)(void *priv, struct vb2_queue *src_vq,
 177                          struct vb2_queue *dst_vq);
 178        int (*reqbufs)(struct coda_ctx *ctx, struct v4l2_requestbuffers *rb);
 179        int (*start_streaming)(struct coda_ctx *ctx);
 180        int (*prepare_run)(struct coda_ctx *ctx);
 181        void (*finish_run)(struct coda_ctx *ctx);
 182        void (*seq_end_work)(struct work_struct *work);
 183        void (*release)(struct coda_ctx *ctx);
 184};
 185
 186struct coda_ctx {
 187        struct coda_dev                 *dev;
 188        struct mutex                    buffer_mutex;
 189        struct list_head                list;
 190        struct work_struct              pic_run_work;
 191        struct work_struct              seq_end_work;
 192        struct completion               completion;
 193        const struct coda_video_device  *cvd;
 194        const struct coda_context_ops   *ops;
 195        int                             aborting;
 196        int                             initialized;
 197        int                             streamon_out;
 198        int                             streamon_cap;
 199        u32                             qsequence;
 200        u32                             osequence;
 201        u32                             sequence_offset;
 202        struct coda_q_data              q_data[2];
 203        enum coda_inst_type             inst_type;
 204        const struct coda_codec         *codec;
 205        enum v4l2_colorspace            colorspace;
 206        struct coda_params              params;
 207        struct v4l2_ctrl_handler        ctrls;
 208        struct v4l2_fh                  fh;
 209        int                             gopcounter;
 210        int                             runcounter;
 211        char                            vpu_header[3][64];
 212        int                             vpu_header_size[3];
 213        struct kfifo                    bitstream_fifo;
 214        struct mutex                    bitstream_mutex;
 215        struct coda_aux_buf             bitstream;
 216        bool                            hold;
 217        struct coda_aux_buf             parabuf;
 218        struct coda_aux_buf             psbuf;
 219        struct coda_aux_buf             slicebuf;
 220        struct coda_aux_buf             internal_frames[CODA_MAX_FRAMEBUFFERS];
 221        u32                             frame_types[CODA_MAX_FRAMEBUFFERS];
 222        struct coda_buffer_meta         frame_metas[CODA_MAX_FRAMEBUFFERS];
 223        u32                             frame_errors[CODA_MAX_FRAMEBUFFERS];
 224        struct list_head                buffer_meta_list;
 225        spinlock_t                      buffer_meta_lock;
 226        int                             num_metas;
 227        struct coda_aux_buf             workbuf;
 228        int                             num_internal_frames;
 229        int                             idx;
 230        int                             reg_idx;
 231        struct coda_iram_info           iram_info;
 232        int                             tiled_map_type;
 233        u32                             bit_stream_param;
 234        u32                             frm_dis_flg;
 235        u32                             frame_mem_ctrl;
 236        int                             display_idx;
 237        struct dentry                   *debugfs_entry;
 238        bool                            use_bit;
 239};
 240
 241extern int coda_debug;
 242
 243void coda_write(struct coda_dev *dev, u32 data, u32 reg);
 244unsigned int coda_read(struct coda_dev *dev, u32 reg);
 245void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
 246                     struct vb2_v4l2_buffer *buf, unsigned int reg_y);
 247
 248int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
 249                       size_t size, const char *name, struct dentry *parent);
 250void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
 251
 252int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
 253                            struct vb2_queue *dst_vq);
 254int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
 255                            struct vb2_queue *dst_vq);
 256
 257int coda_hw_reset(struct coda_ctx *ctx);
 258
 259void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming);
 260
 261void coda_set_gdi_regs(struct coda_ctx *ctx);
 262
 263static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
 264                                             enum v4l2_buf_type type)
 265{
 266        switch (type) {
 267        case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 268                return &(ctx->q_data[V4L2_M2M_SRC]);
 269        case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 270                return &(ctx->q_data[V4L2_M2M_DST]);
 271        default:
 272                return NULL;
 273        }
 274}
 275
 276const char *coda_product_name(int product);
 277
 278int coda_check_firmware(struct coda_dev *dev);
 279
 280static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
 281{
 282        return kfifo_len(&ctx->bitstream_fifo);
 283}
 284
 285void coda_bit_stream_end_flag(struct coda_ctx *ctx);
 286
 287void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
 288                       enum vb2_buffer_state state);
 289
 290int coda_h264_padding(int size, char *p);
 291
 292bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
 293int coda_jpeg_write_tables(struct coda_ctx *ctx);
 294void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
 295
 296extern const struct coda_context_ops coda_bit_encode_ops;
 297extern const struct coda_context_ops coda_bit_decode_ops;
 298
 299irqreturn_t coda_irq_handler(int irq, void *data);
 300
 301#endif /* __CODA_H__ */
 302