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   19
  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_HX4 = 0xf00a,
  47         CODA_7541 = 0xf012,
  48         CODA_960 = 0xf020,
  49 };
  50
  51 struct coda_video_device;
  52
  53 struct coda_devtype {
  54         char                    *firmware[3];
  55         enum coda_product       product;
  56         const struct coda_codec *codecs;
  57         unsigned int            num_codecs;
  58         const struct coda_video_device **vdevs;
  59         unsigned int            num_vdevs;
  60         size_t                  workbuf_size;
  61         size_t                  tempbuf_size;
  62         size_t                  iram_size;
  63 };
  64
  65 struct coda_aux_buf {
  66         void                    *vaddr;
  67         dma_addr_t              paddr;
  68         u32                     size;
  69         struct debugfs_blob_wrapper blob;
  70         struct dentry           *dentry;
  71 };
  72
  73 struct coda_dev {
  74         struct v4l2_device      v4l2_dev;
  75         struct video_device     vfd[5];
  76         struct platform_device  *plat_dev;
  77         const struct coda_devtype *devtype;
  78         int                     firmware;
  79         struct vdoa_data        *vdoa;
  80
  81         void __iomem            *regs_base;
  82         struct clk              *clk_per;
  83         struct clk              *clk_ahb;
  84         struct reset_control    *rstc;
  85
  86         struct coda_aux_buf     codebuf;
  87         struct coda_aux_buf     tempbuf;
  88         struct coda_aux_buf     workbuf;
  89         struct gen_pool         *iram_pool;
  90         struct coda_aux_buf     iram;
  91
  92         spinlock_t              irqlock;
  93         struct mutex            dev_mutex;
  94         struct mutex            coda_mutex;
  95         struct workqueue_struct *workqueue;
  96         struct v4l2_m2m_dev     *m2m_dev;
  97         struct list_head        instances;
  98         unsigned long           instance_mask;
  99         struct dentry           *debugfs_root;
 100 };
 101
 102 struct coda_codec {
 103         u32 mode;
 104         u32 src_fourcc;
 105         u32 dst_fourcc;
 106         u32 max_w;
 107         u32 max_h;
 108 };
 109
 110 struct coda_huff_tab;
 111
 112 struct coda_params {
 113         u8                      rot_mode;
 114         u8                      h264_intra_qp;
 115         u8                      h264_inter_qp;
 116         u8                      h264_min_qp;
 117         u8                      h264_max_qp;
 118         u8                      h264_deblk_enabled;
 119         u8                      h264_deblk_alpha;
 120         u8                      h264_deblk_beta;
 121         u8                      h264_profile_idc;
 122         u8                      h264_level_idc;
 123         u8                      mpeg4_intra_qp;
 124         u8                      mpeg4_inter_qp;
 125         u8                      gop_size;
 126         int                     intra_refresh;
 127         u8                      jpeg_quality;
 128         u8                      jpeg_restart_interval;
 129         u8                      *jpeg_qmat_tab[3];
 130         int                     codec_mode;
 131         int                     codec_mode_aux;
 132         enum v4l2_mpeg_video_multi_slice_mode slice_mode;
 133         u32                     framerate;
 134         u16                     bitrate;
 135         u16                     vbv_delay;
 136         u32                     vbv_size;
 137         u32                     slice_max_bits;
 138         u32                     slice_max_mb;
 139         bool                    force_ipicture;
 140 };
 141
 142 struct coda_buffer_meta {
 143         struct list_head        list;
 144         u32                     sequence;
 145         struct v4l2_timecode    timecode;
 146         u64                     timestamp;
 147         u32                     start;
 148         u32                     end;
 149 };
 150
 151 /* Per-queue, driver-specific private data */
 152 struct coda_q_data {
 153         unsigned int            width;
 154         unsigned int            height;
 155         unsigned int            bytesperline;
 156         unsigned int            sizeimage;
 157         unsigned int            fourcc;
 158         struct v4l2_rect        rect;
 159 };
 160
 161 struct coda_iram_info {
 162         u32             axi_sram_use;
 163         phys_addr_t     buf_bit_use;
 164         phys_addr_t     buf_ip_ac_dc_use;
 165         phys_addr_t     buf_dbk_y_use;
 166         phys_addr_t     buf_dbk_c_use;
 167         phys_addr_t     buf_ovl_use;
 168         phys_addr_t     buf_btp_use;
 169         phys_addr_t     search_ram_paddr;
 170         int             search_ram_size;
 171         int             remaining;
 172         phys_addr_t     next_paddr;
 173 };
 174
 175 #define GDI_LINEAR_FRAME_MAP 0
 176 #define GDI_TILED_FRAME_MB_RASTER_MAP 1
 177
 178 struct coda_ctx;
 179
 180 struct coda_context_ops {
 181         int (*queue_init)(void *priv, struct vb2_queue *src_vq,
 182                           struct vb2_queue *dst_vq);
 183         int (*reqbufs)(struct coda_ctx *ctx, struct v4l2_requestbuffers *rb);
 184         int (*start_streaming)(struct coda_ctx *ctx);
 185         int (*prepare_run)(struct coda_ctx *ctx);
 186         void (*finish_run)(struct coda_ctx *ctx);
 187         void (*run_timeout)(struct coda_ctx *ctx);
 188         void (*seq_end_work)(struct work_struct *work);
 189         void (*release)(struct coda_ctx *ctx);
 190 };
 191
 192 struct coda_ctx {
 193         struct coda_dev                 *dev;
 194         struct mutex                    buffer_mutex;
 195         struct list_head                list;
 196         struct work_struct              pic_run_work;
 197         struct work_struct              seq_end_work;
 198         struct completion               completion;
 199         const struct coda_video_device  *cvd;
 200         const struct coda_context_ops   *ops;
 201         int                             aborting;
 202         int                             initialized;
 203         int                             streamon_out;
 204         int                             streamon_cap;
 205         u32                             qsequence;
 206         u32                             osequence;
 207         u32                             sequence_offset;
 208         struct coda_q_data              q_data[2];
 209         enum coda_inst_type             inst_type;
 210         const struct coda_codec         *codec;
 211         enum v4l2_colorspace            colorspace;
 212         enum v4l2_xfer_func             xfer_func;
 213         enum v4l2_ycbcr_encoding        ycbcr_enc;
 214         enum v4l2_quantization          quantization;
 215         struct coda_params              params;
 216         struct v4l2_ctrl_handler        ctrls;
 217         struct v4l2_ctrl                *h264_profile_ctrl;
 218         struct v4l2_ctrl                *h264_level_ctrl;
 219         struct v4l2_fh                  fh;
 220         int                             gopcounter;
 221         int                             runcounter;
 222         char                            vpu_header[3][64];
 223         int                             vpu_header_size[3];
 224         struct kfifo                    bitstream_fifo;
 225         struct mutex                    bitstream_mutex;
 226         struct coda_aux_buf             bitstream;
 227         bool                            hold;
 228         struct coda_aux_buf             parabuf;
 229         struct coda_aux_buf             psbuf;
 230         struct coda_aux_buf             slicebuf;
 231         struct coda_aux_buf             internal_frames[CODA_MAX_FRAMEBUFFERS];
 232         u32                             frame_types[CODA_MAX_FRAMEBUFFERS];
 233         struct coda_buffer_meta         frame_metas[CODA_MAX_FRAMEBUFFERS];
 234         u32                             frame_errors[CODA_MAX_FRAMEBUFFERS];
 235         struct list_head                buffer_meta_list;
 236         spinlock_t                      buffer_meta_lock;
 237         int                             num_metas;
 238         struct coda_aux_buf             workbuf;
 239         int                             num_internal_frames;
 240         int                             idx;
 241         int                             reg_idx;
 242         struct coda_iram_info           iram_info;
 243         int                             tiled_map_type;
 244         u32                             bit_stream_param;
 245         u32                             frm_dis_flg;
 246         u32                             frame_mem_ctrl;
 247         int                             display_idx;
 248         struct dentry                   *debugfs_entry;
 249         bool                            use_bit;
 250         bool                            use_vdoa;
 251         struct vdoa_ctx                 *vdoa;
 252 };
 253
 254 extern int coda_debug;
 255
 256 void coda_write(struct coda_dev *dev, u32 data, u32 reg);
 257 unsigned int coda_read(struct coda_dev *dev, u32 reg);
 258 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
 259                      struct vb2_v4l2_buffer *buf, unsigned int reg_y);
 260
 261 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
 262                        size_t size, const char *name, struct dentry *parent);
 263 void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
 264
 265 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
 266                             struct vb2_queue *dst_vq);
 267 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
 268                             struct vb2_queue *dst_vq);
 269
 270 int coda_hw_reset(struct coda_ctx *ctx);
 271
 272 void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list);
 273
 274 void coda_set_gdi_regs(struct coda_ctx *ctx);
 275
 276 static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
 277                                              enum v4l2_buf_type type)
 278 {
 279         switch (type) {
 280         case V4L2_BUF_TYPE_VIDEO_OUTPUT:
 281                 return &(ctx->q_data[V4L2_M2M_SRC]);
 282         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
 283                 return &(ctx->q_data[V4L2_M2M_DST]);
 284         default:
 285                 return NULL;
 286         }
 287 }
 288
 289 const char *coda_product_name(int product);
 290
 291 int coda_check_firmware(struct coda_dev *dev);
 292
 293 static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
 294 {
 295         return kfifo_len(&ctx->bitstream_fifo);
 296 }
 297
 298 void coda_bit_stream_end_flag(struct coda_ctx *ctx);
 299
 300 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
 301                        enum vb2_buffer_state state);
 302
 303 int coda_h264_filler_nal(int size, char *p);
 304 int coda_h264_padding(int size, char *p);
 305 int coda_h264_profile(int profile_idc);
 306 int coda_h264_level(int level_idc);
 307 int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb);
 308 int coda_h264_sps_fixup(struct coda_ctx *ctx, int width, int height, char *buf,
 309                         int *size, int max_size);
 310
 311 bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
 312 int coda_jpeg_write_tables(struct coda_ctx *ctx);
 313 void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
 314
 315 extern const struct coda_context_ops coda_bit_encode_ops;
 316 extern const struct coda_context_ops coda_bit_decode_ops;
 317
 318 irqreturn_t coda_irq_handler(int irq, void *data);
 319
 320 #endif /* __CODA_H__ */