1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Coda multi-standard codec IP 4 * 5 * Copyright (C) 2012 Vista Silicon S.L. 6 * Javier Martin, <javier.martin@vista-silicon.com> 7 * Xavier Duret 8 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix 9 */ 10 11 #ifndef __CODA_H__ 12 #define __CODA_H__ 13 14 #include <linux/debugfs.h> 15 #include <linux/idr.h> 16 #include <linux/irqreturn.h> 17 #include <linux/mutex.h> 18 #include <linux/kfifo.h> 19 #include <linux/videodev2.h> 20 #include <linux/ratelimit.h> 21 22 #include <media/v4l2-ctrls.h> 23 #include <media/v4l2-device.h> 24 #include <media/v4l2-fh.h> 25 #include <media/videobuf2-v4l2.h> 26 27 #include "coda_regs.h" 28 29 #define CODA_MAX_FRAMEBUFFERS 19 30 #define FMO_SLICE_SAVE_BUF_SIZE (32) 31 32 /* 33 * This control allows applications to read the per-stream 34 * (i.e. per-context) Macroblocks Error Count. This value 35 * is CODA specific. 36 */ 37 #define V4L2_CID_CODA_MB_ERR_CNT (V4L2_CID_USER_CODA_BASE + 0) 38 39 enum { 40 V4L2_M2M_SRC = 0, 41 V4L2_M2M_DST = 1, 42 }; 43 44 enum coda_inst_type { 45 CODA_INST_ENCODER, 46 CODA_INST_DECODER, 47 }; 48 49 enum coda_product { 50 CODA_DX6 = 0xf001, 51 CODA_HX4 = 0xf00a, 52 CODA_7541 = 0xf012, 53 CODA_960 = 0xf020, 54 }; 55 56 struct coda_video_device; 57 58 struct coda_devtype { 59 char *firmware[3]; 60 enum coda_product product; 61 const struct coda_codec *codecs; 62 unsigned int num_codecs; 63 const struct coda_video_device **vdevs; 64 unsigned int num_vdevs; 65 size_t workbuf_size; 66 size_t tempbuf_size; 67 size_t iram_size; 68 }; 69 70 struct coda_aux_buf { 71 void *vaddr; 72 dma_addr_t paddr; 73 u32 size; 74 struct debugfs_blob_wrapper blob; 75 struct dentry *dentry; 76 }; 77 78 struct coda_dev { 79 struct v4l2_device v4l2_dev; 80 struct video_device vfd[6]; 81 struct device *dev; 82 const struct coda_devtype *devtype; 83 int firmware; 84 struct vdoa_data *vdoa; 85 86 void __iomem *regs_base; 87 struct clk *clk_per; 88 struct clk *clk_ahb; 89 struct reset_control *rstc; 90 91 struct coda_aux_buf codebuf; 92 struct coda_aux_buf tempbuf; 93 struct coda_aux_buf workbuf; 94 struct gen_pool *iram_pool; 95 struct coda_aux_buf iram; 96 97 struct mutex dev_mutex; 98 struct mutex coda_mutex; 99 struct workqueue_struct *workqueue; 100 struct v4l2_m2m_dev *m2m_dev; 101 struct ida ida; 102 struct dentry *debugfs_root; 103 struct ratelimit_state mb_err_rs; 104 }; 105 106 struct coda_codec { 107 u32 mode; 108 u32 src_fourcc; 109 u32 dst_fourcc; 110 u32 max_w; 111 u32 max_h; 112 }; 113 114 struct coda_huff_tab; 115 116 struct coda_params { 117 u8 rot_mode; 118 u8 h264_intra_qp; 119 u8 h264_inter_qp; 120 u8 h264_min_qp; 121 u8 h264_max_qp; 122 u8 h264_disable_deblocking_filter_idc; 123 s8 h264_slice_alpha_c0_offset_div2; 124 s8 h264_slice_beta_offset_div2; 125 bool h264_constrained_intra_pred_flag; 126 s8 h264_chroma_qp_index_offset; 127 u8 h264_profile_idc; 128 u8 h264_level_idc; 129 u8 mpeg2_profile_idc; 130 u8 mpeg2_level_idc; 131 u8 mpeg4_intra_qp; 132 u8 mpeg4_inter_qp; 133 u8 gop_size; 134 int intra_refresh; 135 enum v4l2_jpeg_chroma_subsampling jpeg_chroma_subsampling; 136 u8 jpeg_quality; 137 u8 jpeg_restart_interval; 138 u8 *jpeg_qmat_tab[3]; 139 int jpeg_qmat_index[3]; 140 int jpeg_huff_dc_index[3]; 141 int jpeg_huff_ac_index[3]; 142 u32 *jpeg_huff_data; 143 struct coda_huff_tab *jpeg_huff_tab; 144 int codec_mode; 145 int codec_mode_aux; 146 enum v4l2_mpeg_video_multi_slice_mode slice_mode; 147 u32 framerate; 148 u16 bitrate; 149 u16 vbv_delay; 150 u32 vbv_size; 151 u32 slice_max_bits; 152 u32 slice_max_mb; 153 bool force_ipicture; 154 bool gop_size_changed; 155 bool bitrate_changed; 156 bool framerate_changed; 157 bool h264_intra_qp_changed; 158 bool intra_refresh_changed; 159 bool slice_mode_changed; 160 bool frame_rc_enable; 161 bool mb_rc_enable; 162 }; 163 164 struct coda_buffer_meta { 165 struct list_head list; 166 u32 sequence; 167 struct v4l2_timecode timecode; 168 u64 timestamp; 169 unsigned int start; 170 unsigned int end; 171 bool last; 172 }; 173 174 /* Per-queue, driver-specific private data */ 175 struct coda_q_data { 176 unsigned int width; 177 unsigned int height; 178 unsigned int bytesperline; 179 unsigned int sizeimage; 180 unsigned int fourcc; 181 struct v4l2_rect rect; 182 }; 183 184 struct coda_iram_info { 185 u32 axi_sram_use; 186 phys_addr_t buf_bit_use; 187 phys_addr_t buf_ip_ac_dc_use; 188 phys_addr_t buf_dbk_y_use; 189 phys_addr_t buf_dbk_c_use; 190 phys_addr_t buf_ovl_use; 191 phys_addr_t buf_btp_use; 192 phys_addr_t search_ram_paddr; 193 int search_ram_size; 194 int remaining; 195 phys_addr_t next_paddr; 196 }; 197 198 #define GDI_LINEAR_FRAME_MAP 0 199 #define GDI_TILED_FRAME_MB_RASTER_MAP 1 200 201 struct coda_ctx; 202 203 struct coda_context_ops { 204 int (*queue_init)(void *priv, struct vb2_queue *src_vq, 205 struct vb2_queue *dst_vq); 206 int (*reqbufs)(struct coda_ctx *ctx, struct v4l2_requestbuffers *rb); 207 int (*start_streaming)(struct coda_ctx *ctx); 208 int (*prepare_run)(struct coda_ctx *ctx); 209 void (*finish_run)(struct coda_ctx *ctx); 210 void (*run_timeout)(struct coda_ctx *ctx); 211 void (*seq_init_work)(struct work_struct *work); 212 void (*seq_end_work)(struct work_struct *work); 213 void (*release)(struct coda_ctx *ctx); 214 }; 215 216 struct coda_internal_frame { 217 struct coda_aux_buf buf; 218 struct coda_buffer_meta meta; 219 u32 type; 220 u32 error; 221 }; 222 223 struct coda_ctx { 224 struct coda_dev *dev; 225 struct mutex buffer_mutex; 226 struct work_struct pic_run_work; 227 struct work_struct seq_init_work; 228 struct work_struct seq_end_work; 229 struct completion completion; 230 const struct coda_video_device *cvd; 231 const struct coda_context_ops *ops; 232 int aborting; 233 int initialized; 234 int streamon_out; 235 int streamon_cap; 236 u32 qsequence; 237 u32 osequence; 238 u32 sequence_offset; 239 struct coda_q_data q_data[2]; 240 enum coda_inst_type inst_type; 241 const struct coda_codec *codec; 242 enum v4l2_colorspace colorspace; 243 enum v4l2_xfer_func xfer_func; 244 enum v4l2_ycbcr_encoding ycbcr_enc; 245 enum v4l2_quantization quantization; 246 struct coda_params params; 247 struct v4l2_ctrl_handler ctrls; 248 struct v4l2_ctrl *h264_profile_ctrl; 249 struct v4l2_ctrl *h264_level_ctrl; 250 struct v4l2_ctrl *mpeg2_profile_ctrl; 251 struct v4l2_ctrl *mpeg2_level_ctrl; 252 struct v4l2_ctrl *mpeg4_profile_ctrl; 253 struct v4l2_ctrl *mpeg4_level_ctrl; 254 struct v4l2_ctrl *mb_err_cnt_ctrl; 255 struct v4l2_fh fh; 256 int gopcounter; 257 int runcounter; 258 int jpeg_ecs_offset; 259 char vpu_header[3][64]; 260 int vpu_header_size[3]; 261 struct kfifo bitstream_fifo; 262 struct mutex bitstream_mutex; 263 struct coda_aux_buf bitstream; 264 bool hold; 265 struct coda_aux_buf parabuf; 266 struct coda_aux_buf psbuf; 267 struct coda_aux_buf slicebuf; 268 struct coda_internal_frame internal_frames[CODA_MAX_FRAMEBUFFERS]; 269 struct list_head buffer_meta_list; 270 spinlock_t buffer_meta_lock; 271 int num_metas; 272 unsigned int first_frame_sequence; 273 struct coda_aux_buf workbuf; 274 int num_internal_frames; 275 int idx; 276 int reg_idx; 277 struct coda_iram_info iram_info; 278 int tiled_map_type; 279 u32 bit_stream_param; 280 u32 frm_dis_flg; 281 u32 frame_mem_ctrl; 282 u32 para_change; 283 int display_idx; 284 struct dentry *debugfs_entry; 285 bool use_bit; 286 bool use_vdoa; 287 struct vdoa_ctx *vdoa; 288 /* 289 * wakeup mutex used to serialize encoder stop command and finish_run, 290 * ensures that finish_run always either flags the last returned buffer 291 * or wakes up the capture queue to signal EOS afterwards. 292 */ 293 struct mutex wakeup_mutex; 294 }; 295 296 extern int coda_debug; 297 298 #define coda_dbg(level, ctx, fmt, arg...) \ 299 do { \ 300 if (coda_debug >= (level)) \ 301 v4l2_dbg((level), coda_debug, &(ctx)->dev->v4l2_dev, \ 302 "%u: " fmt, (ctx)->idx, ##arg); \ 303 } while (0) 304 305 void coda_write(struct coda_dev *dev, u32 data, u32 reg); 306 unsigned int coda_read(struct coda_dev *dev, u32 reg); 307 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data, 308 struct vb2_v4l2_buffer *buf, unsigned int reg_y); 309 310 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf, 311 size_t size, const char *name, struct dentry *parent); 312 void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf); 313 314 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq, 315 struct vb2_queue *dst_vq); 316 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq, 317 struct vb2_queue *dst_vq); 318 319 int coda_hw_reset(struct coda_ctx *ctx); 320 321 void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list); 322 323 void coda_set_gdi_regs(struct coda_ctx *ctx); 324 get_q_data(struct coda_ctx * ctx,enum v4l2_buf_type type)325 static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx, 326 enum v4l2_buf_type type) 327 { 328 switch (type) { 329 case V4L2_BUF_TYPE_VIDEO_OUTPUT: 330 return &(ctx->q_data[V4L2_M2M_SRC]); 331 case V4L2_BUF_TYPE_VIDEO_CAPTURE: 332 return &(ctx->q_data[V4L2_M2M_DST]); 333 default: 334 return NULL; 335 } 336 } 337 338 const char *coda_product_name(int product); 339 340 int coda_check_firmware(struct coda_dev *dev); 341 coda_get_bitstream_payload(struct coda_ctx * ctx)342 static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx) 343 { 344 return kfifo_len(&ctx->bitstream_fifo); 345 } 346 347 /* 348 * The bitstream prefetcher needs to read at least 2 256 byte periods past 349 * the desired bitstream position for all data to reach the decoder. 350 */ coda_bitstream_can_fetch_past(struct coda_ctx * ctx,unsigned int pos)351 static inline bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx, 352 unsigned int pos) 353 { 354 return (int)(ctx->bitstream_fifo.kfifo.in - ALIGN(pos, 256)) > 512; 355 } 356 357 bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx, unsigned int pos); 358 int coda_bitstream_flush(struct coda_ctx *ctx); 359 360 void coda_bit_stream_end_flag(struct coda_ctx *ctx); 361 362 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf, 363 enum vb2_buffer_state state); 364 365 int coda_h264_filler_nal(int size, char *p); 366 int coda_h264_padding(int size, char *p); 367 int coda_h264_profile(int profile_idc); 368 int coda_h264_level(int level_idc); 369 int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb); 370 int coda_h264_sps_fixup(struct coda_ctx *ctx, int width, int height, char *buf, 371 int *size, int max_size); 372 373 int coda_mpeg2_profile(int profile_idc); 374 int coda_mpeg2_level(int level_idc); 375 u32 coda_mpeg2_parse_headers(struct coda_ctx *ctx, u8 *buf, u32 size); 376 int coda_mpeg4_profile(int profile_idc); 377 int coda_mpeg4_level(int level_idc); 378 u32 coda_mpeg4_parse_headers(struct coda_ctx *ctx, u8 *buf, u32 size); 379 380 void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc, 381 u8 level_idc); 382 coda_jpeg_scale(int src,int dst)383 static inline int coda_jpeg_scale(int src, int dst) 384 { 385 return (dst <= src / 8) ? 3 : 386 (dst <= src / 4) ? 2 : 387 (dst <= src / 2) ? 1 : 0; 388 } 389 390 bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb); 391 int coda_jpeg_decode_header(struct coda_ctx *ctx, struct vb2_buffer *vb); 392 int coda_jpeg_write_tables(struct coda_ctx *ctx); 393 void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality); 394 395 extern const struct coda_context_ops coda_bit_encode_ops; 396 extern const struct coda_context_ops coda_bit_decode_ops; 397 extern const struct coda_context_ops coda9_jpeg_encode_ops; 398 extern const struct coda_context_ops coda9_jpeg_decode_ops; 399 400 irqreturn_t coda_irq_handler(int irq, void *data); 401 irqreturn_t coda9_jpeg_irq_handler(int irq, void *data); 402 403 #endif /* __CODA_H__ */ 404