drivers/media/platform/coda/coda.h

   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
  34 enum {
  35         V4L2_M2M_SRC = 0,
  36         V4L2_M2M_DST = 1,
  37 };
  38
  39 enum coda_inst_type {
  40         CODA_INST_ENCODER,
  41         CODA_INST_DECODER,
  42 };
  43
  44 enum coda_product {
  45         CODA_DX6 = 0xf001,
  46         CODA_7541 = 0xf012,
  47         CODA_960 = 0xf020,
  48 };
  49
  50 struct coda_video_device;
  51
  52 struct 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
  64 struct 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
  72 struct 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
 100 struct coda_codec {
 101         u32 mode;
 102         u32 src_fourcc;
 103         u32 dst_fourcc;
 104         u32 max_w;
 105         u32 max_h;
 106 };
 107
 108 struct coda_huff_tab;
 109
 110 struct 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
 137 struct 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 */
 147 struct 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
 156 struct 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
 173 struct coda_ctx;
 174
 175 struct 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
 186 struct 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
 241 extern int coda_debug;
 242
 243 void coda_write(struct coda_dev *dev, u32 data, u32 reg);
 244 unsigned int coda_read(struct coda_dev *dev, u32 reg);
 245 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
 246                      struct vb2_v4l2_buffer *buf, unsigned int reg_y);
 247
 248 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
 249                        size_t size, const char *name, struct dentry *parent);
 250 void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
 251
 252 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
 253                             struct vb2_queue *dst_vq);
 254 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
 255                             struct vb2_queue *dst_vq);
 256
 257 int coda_hw_reset(struct coda_ctx *ctx);
 258
 259 void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming);
 260
 261 void coda_set_gdi_regs(struct coda_ctx *ctx);
 262
 263 static 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
 276 const char *coda_product_name(int product);
 277
 278 int coda_check_firmware(struct coda_dev *dev);
 279
 280 static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
 281 {
 282         return kfifo_len(&ctx->bitstream_fifo);
 283 }
 284
 285 void coda_bit_stream_end_flag(struct coda_ctx *ctx);
 286
 287 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
 288                        enum vb2_buffer_state state);
 289
 290 int coda_h264_padding(int size, char *p);
 291
 292 bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
 293 int coda_jpeg_write_tables(struct coda_ctx *ctx);
 294 void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
 295
 296 extern const struct coda_context_ops coda_bit_encode_ops;
 297 extern const struct coda_context_ops coda_bit_decode_ops;
 298
 299 irqreturn_t coda_irq_handler(int irq, void *data);
 300
 301 #endif /* __CODA_H__ */