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-core.h>
28
29 #include "coda_regs.h"
30
31 #define CODA_MAX_FRAMEBUFFERS 8
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_7541 = 0xf012,
47 CODA_960 = 0xf020,
48 };
49
50 struct coda_video_device;
51
52 struct coda_devtype {
53 char *firmware;
54 enum coda_product product;
55 const struct coda_codec *codecs;
56 unsigned int num_codecs;
57 const struct coda_video_device **vdevs;
58 unsigned int num_vdevs;
59 size_t workbuf_size;
60 size_t tempbuf_size;
61 size_t iram_size;
62 };
63
64 struct coda_aux_buf {
65 void *vaddr;
66 dma_addr_t paddr;
67 u32 size;
68 struct debugfs_blob_wrapper blob;
69 struct dentry *dentry;
70 };
71
72 struct coda_dev {
73 struct v4l2_device v4l2_dev;
74 struct video_device vfd[5];
75 struct platform_device *plat_dev;
76 const struct coda_devtype *devtype;
77
78 void __iomem *regs_base;
79 struct clk *clk_per;
80 struct clk *clk_ahb;
81 struct reset_control *rstc;
82
83 struct coda_aux_buf codebuf;
84 struct coda_aux_buf tempbuf;
85 struct coda_aux_buf workbuf;
86 struct gen_pool *iram_pool;
87 struct coda_aux_buf iram;
88
89 spinlock_t irqlock;
90 struct mutex dev_mutex;
91 struct mutex coda_mutex;
92 struct workqueue_struct *workqueue;
93 struct v4l2_m2m_dev *m2m_dev;
94 struct vb2_alloc_ctx *alloc_ctx;
95 struct list_head instances;
96 unsigned long instance_mask;
97 struct dentry *debugfs_root;
98 };
99
100 struct coda_codec {
101 u32 mode;
102 u32 src_fourcc;
103 u32 dst_fourcc;
104 u32 max_w;
105 u32 max_h;
106 };
107
108 struct coda_huff_tab;
109
110 struct coda_params {
111 u8 rot_mode;
112 u8 h264_intra_qp;
113 u8 h264_inter_qp;
114 u8 h264_min_qp;
115 u8 h264_max_qp;
116 u8 h264_deblk_enabled;
117 u8 h264_deblk_alpha;
118 u8 h264_deblk_beta;
119 u8 mpeg4_intra_qp;
120 u8 mpeg4_inter_qp;
121 u8 gop_size;
122 int intra_refresh;
123 u8 jpeg_quality;
124 u8 jpeg_restart_interval;
125 u8 *jpeg_qmat_tab[3];
126 int codec_mode;
127 int codec_mode_aux;
128 enum v4l2_mpeg_video_multi_slice_mode slice_mode;
129 u32 framerate;
130 u16 bitrate;
131 u32 slice_max_bits;
132 u32 slice_max_mb;
133 };
134
135 struct coda_buffer_meta {
136 struct list_head list;
137 u32 sequence;
138 struct v4l2_timecode timecode;
139 struct timeval timestamp;
140 u32 start;
141 u32 end;
142 };
143
144 /* Per-queue, driver-specific private data */
145 struct coda_q_data {
146 unsigned int width;
147 unsigned int height;
148 unsigned int bytesperline;
149 unsigned int sizeimage;
150 unsigned int fourcc;
151 struct v4l2_rect rect;
152 };
153
154 struct coda_iram_info {
155 u32 axi_sram_use;
156 phys_addr_t buf_bit_use;
157 phys_addr_t buf_ip_ac_dc_use;
158 phys_addr_t buf_dbk_y_use;
159 phys_addr_t buf_dbk_c_use;
160 phys_addr_t buf_ovl_use;
161 phys_addr_t buf_btp_use;
162 phys_addr_t search_ram_paddr;
163 int search_ram_size;
164 int remaining;
165 phys_addr_t next_paddr;
166 };
167
168 struct gdi_tiled_map {
169 int xy2ca_map[16];
170 int xy2ba_map[16];
171 int xy2ra_map[16];
172 int rbc2axi_map[32];
173 int xy2rbc_config;
174 int map_type;
175 #define GDI_LINEAR_FRAME_MAP 0
176 };
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 (*seq_end_work)(struct work_struct *work);
188 void (*release)(struct coda_ctx *ctx);
189 };
190
191 struct coda_ctx {
192 struct coda_dev *dev;
193 struct mutex buffer_mutex;
194 struct list_head list;
195 struct work_struct pic_run_work;
196 struct work_struct seq_end_work;
197 struct completion completion;
198 const struct coda_video_device *cvd;
199 const struct coda_context_ops *ops;
200 int aborting;
201 int initialized;
202 int streamon_out;
203 int streamon_cap;
204 u32 qsequence;
205 u32 osequence;
206 u32 sequence_offset;
207 struct coda_q_data q_data[2];
208 enum coda_inst_type inst_type;
209 const struct coda_codec *codec;
210 enum v4l2_colorspace colorspace;
211 struct coda_params params;
212 struct v4l2_ctrl_handler ctrls;
213 struct v4l2_fh fh;
214 int gopcounter;
215 int runcounter;
216 char vpu_header[3][64];
217 int vpu_header_size[3];
218 struct kfifo bitstream_fifo;
219 struct mutex bitstream_mutex;
220 struct coda_aux_buf bitstream;
221 bool hold;
222 struct coda_aux_buf parabuf;
223 struct coda_aux_buf psbuf;
224 struct coda_aux_buf slicebuf;
225 struct coda_aux_buf internal_frames[CODA_MAX_FRAMEBUFFERS];
226 u32 frame_types[CODA_MAX_FRAMEBUFFERS];
227 struct coda_buffer_meta frame_metas[CODA_MAX_FRAMEBUFFERS];
228 u32 frame_errors[CODA_MAX_FRAMEBUFFERS];
229 struct list_head buffer_meta_list;
230 struct coda_aux_buf workbuf;
231 int num_internal_frames;
232 int idx;
233 int reg_idx;
234 struct coda_iram_info iram_info;
235 struct gdi_tiled_map tiled_map;
236 u32 bit_stream_param;
237 u32 frm_dis_flg;
238 u32 frame_mem_ctrl;
239 int display_idx;
240 struct dentry *debugfs_entry;
241 bool use_bit;
242 };
243
244 extern int coda_debug;
245
246 void coda_write(struct coda_dev *dev, u32 data, u32 reg);
247 unsigned int coda_read(struct coda_dev *dev, u32 reg);
248 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
249 struct vb2_buffer *buf, unsigned int reg_y);
250
251 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
252 size_t size, const char *name, struct dentry *parent);
253 void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
254
255 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
256 struct vb2_queue *dst_vq);
257 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
258 struct vb2_queue *dst_vq);
259
260 int coda_hw_reset(struct coda_ctx *ctx);
261
262 void coda_fill_bitstream(struct coda_ctx *ctx, bool streaming);
263
264 void coda_set_gdi_regs(struct coda_ctx *ctx);
265
get_q_data(struct coda_ctx * ctx,enum v4l2_buf_type type)266 static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
267 enum v4l2_buf_type type)
268 {
269 switch (type) {
270 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
271 return &(ctx->q_data[V4L2_M2M_SRC]);
272 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
273 return &(ctx->q_data[V4L2_M2M_DST]);
274 default:
275 return NULL;
276 }
277 }
278
279 const char *coda_product_name(int product);
280
281 int coda_check_firmware(struct coda_dev *dev);
282
coda_get_bitstream_payload(struct coda_ctx * ctx)283 static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
284 {
285 return kfifo_len(&ctx->bitstream_fifo);
286 }
287
288 void coda_bit_stream_end_flag(struct coda_ctx *ctx);
289
290 int coda_h264_padding(int size, char *p);
291
292 bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
293 int coda_jpeg_write_tables(struct coda_ctx *ctx);
294 void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
295
296 extern const struct coda_context_ops coda_bit_encode_ops;
297 extern const struct coda_context_ops coda_bit_decode_ops;
298
299 irqreturn_t coda_irq_handler(int irq, void *data);
300
301 #endif /* __CODA_H__ */
302