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 [3][64]; |
260 | int [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 | |
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 | |
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 | */ |
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 (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 (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 | |
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 (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 | |