1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Coda multi-standard codec IP
5 * Copyright (C) 2012 Vista Silicon S.L.
8 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
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>
22 #include <media/v4l2-ctrls.h>
23 #include <media/v4l2-device.h>
24 #include <media/v4l2-fh.h>
25 #include <media/videobuf2-v4l2.h>
27 #include "coda_regs.h"
29 #define CODA_MAX_FRAMEBUFFERS 19
30 #define FMO_SLICE_SAVE_BUF_SIZE (32)
33 * This control allows applications to read the per-stream
34 * (i.e. per-context) Macroblocks Error Count. This value
37 #define V4L2_CID_CODA_MB_ERR_CNT (V4L2_CID_USER_CODA_BASE + 0)
56 struct coda_video_device;
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;
74 struct debugfs_blob_wrapper blob;
75 struct dentry *dentry;
79 struct v4l2_device v4l2_dev;
80 struct video_device vfd[6];
82 const struct coda_devtype *devtype;
84 struct vdoa_data *vdoa;
86 void __iomem *regs_base;
89 struct reset_control *rstc;
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;
97 struct mutex dev_mutex;
98 struct mutex coda_mutex;
99 struct workqueue_struct *workqueue;
100 struct v4l2_m2m_dev *m2m_dev;
102 struct dentry *debugfs_root;
103 struct ratelimit_state mb_err_rs;
114 struct coda_huff_tab;
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;
129 u8 mpeg2_profile_idc;
135 enum v4l2_jpeg_chroma_subsampling jpeg_chroma_subsampling;
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];
143 struct coda_huff_tab *jpeg_huff_tab;
146 enum v4l2_mpeg_video_multi_slice_mode slice_mode;
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;
164 struct coda_buffer_meta {
165 struct list_head list;
167 struct v4l2_timecode timecode;
174 /* Per-queue, driver-specific private data */
178 unsigned int bytesperline;
179 unsigned int sizeimage;
181 struct v4l2_rect rect;
184 struct coda_iram_info {
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;
195 phys_addr_t next_paddr;
198 #define GDI_LINEAR_FRAME_MAP 0
199 #define GDI_TILED_FRAME_MB_RASTER_MAP 1
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);
216 struct coda_internal_frame {
217 struct coda_aux_buf buf;
218 struct coda_buffer_meta meta;
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;
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;
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;
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;
272 unsigned int first_frame_sequence;
273 struct coda_aux_buf workbuf;
274 int num_internal_frames;
277 struct coda_iram_info iram_info;
279 u32 bit_stream_param;
284 struct dentry *debugfs_entry;
287 struct vdoa_ctx *vdoa;
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.
293 struct mutex wakeup_mutex;
296 extern int coda_debug;
298 #define coda_dbg(level, ctx, fmt, arg...) \
300 if (coda_debug >= (level)) \
301 v4l2_dbg((level), coda_debug, &(ctx)->dev->v4l2_dev, \
302 "%u: " fmt, (ctx)->idx, ##arg); \
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);
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);
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);
319 int coda_hw_reset(struct coda_ctx *ctx);
321 void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list);
323 void coda_set_gdi_regs(struct coda_ctx *ctx);
325 static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
326 enum v4l2_buf_type 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]);
338 const char *coda_product_name(int product);
340 int coda_check_firmware(struct coda_dev *dev);
342 static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
344 return kfifo_len(&ctx->bitstream_fifo);
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.
351 static inline bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx,
354 return (int)(ctx->bitstream_fifo.kfifo.in - ALIGN(pos, 256)) > 512;
357 bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx, unsigned int pos);
358 int coda_bitstream_flush(struct coda_ctx *ctx);
360 void coda_bit_stream_end_flag(struct coda_ctx *ctx);
362 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
363 enum vb2_buffer_state state);
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);
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);
380 void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
383 static inline int coda_jpeg_scale(int src, int dst)
385 return (dst <= src / 8) ? 3 :
386 (dst <= src / 4) ? 2 :
387 (dst <= src / 2) ? 1 : 0;
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);
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;
400 irqreturn_t coda_irq_handler(int irq, void *data);
401 irqreturn_t coda9_jpeg_irq_handler(int irq, void *data);
403 #endif /* __CODA_H__ */