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
39enum {
40 V4L2_M2M_SRC = 0,
41 V4L2_M2M_DST = 1,
42};
43
44enum coda_inst_type {
45 CODA_INST_ENCODER,
46 CODA_INST_DECODER,
47};
48
49enum coda_product {
50 CODA_DX6 = 0xf001,
51 CODA_HX4 = 0xf00a,
52 CODA_7541 = 0xf012,
53 CODA_960 = 0xf020,
54};
55
56struct coda_video_device;
57
58struct 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
70struct 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
78struct 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
106struct coda_codec {
107 u32 mode;
108 u32 src_fourcc;
109 u32 dst_fourcc;
110 u32 max_w;
111 u32 max_h;
112};
113
114struct coda_huff_tab;
115
116struct 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
164struct 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 */
175struct 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
184struct 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
201struct coda_ctx;
202
203struct 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
216struct coda_internal_frame {
217 struct coda_aux_buf buf;
218 struct coda_buffer_meta meta;
219 u32 type;
220 u32 error;
221};
222
223struct 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
296extern 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
305void coda_write(struct coda_dev *dev, u32 data, u32 reg);
306unsigned int coda_read(struct coda_dev *dev, u32 reg);
307void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
308 struct vb2_v4l2_buffer *buf, unsigned int reg_y);
309
310int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
311 size_t size, const char *name, struct dentry *parent);
312void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
313
314int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
315 struct vb2_queue *dst_vq);
316int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
317 struct vb2_queue *dst_vq);
318
319int coda_hw_reset(struct coda_ctx *ctx);
320
321void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list);
322
323void coda_set_gdi_regs(struct coda_ctx *ctx);
324
325static 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
338const char *coda_product_name(int product);
339
340int coda_check_firmware(struct coda_dev *dev);
341
342static 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 */
351static 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
357bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx, unsigned int pos);
358int coda_bitstream_flush(struct coda_ctx *ctx);
359
360void coda_bit_stream_end_flag(struct coda_ctx *ctx);
361
362void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
363 enum vb2_buffer_state state);
364
365int coda_h264_filler_nal(int size, char *p);
366int coda_h264_padding(int size, char *p);
367int coda_h264_profile(int profile_idc);
368int coda_h264_level(int level_idc);
369int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb);
370int coda_h264_sps_fixup(struct coda_ctx *ctx, int width, int height, char *buf,
371 int *size, int max_size);
372
373int coda_mpeg2_profile(int profile_idc);
374int coda_mpeg2_level(int level_idc);
375u32 coda_mpeg2_parse_headers(struct coda_ctx *ctx, u8 *buf, u32 size);
376int coda_mpeg4_profile(int profile_idc);
377int coda_mpeg4_level(int level_idc);
378u32 coda_mpeg4_parse_headers(struct coda_ctx *ctx, u8 *buf, u32 size);
379
380void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
381 u8 level_idc);
382
383static 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
390bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
391int coda_jpeg_decode_header(struct coda_ctx *ctx, struct vb2_buffer *vb);
392int coda_jpeg_write_tables(struct coda_ctx *ctx);
393void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
394
395extern const struct coda_context_ops coda_bit_encode_ops;
396extern const struct coda_context_ops coda_bit_decode_ops;
397extern const struct coda_context_ops coda9_jpeg_encode_ops;
398extern const struct coda_context_ops coda9_jpeg_decode_ops;
399
400irqreturn_t coda_irq_handler(int irq, void *data);
401irqreturn_t coda9_jpeg_irq_handler(int irq, void *data);
402
403#endif /* __CODA_H__ */
404

source code of linux/drivers/media/platform/chips-media/coda/coda.h