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[karo-tx-linux.git] / drivers / media / platform / coda / coda.h
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-v4l2.h>
28
29 #include "coda_regs.h"
30
31 #define CODA_MAX_FRAMEBUFFERS   17
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[3];
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         int                     firmware;
78         struct vdoa_data        *vdoa;
79
80         void __iomem            *regs_base;
81         struct clk              *clk_per;
82         struct clk              *clk_ahb;
83         struct reset_control    *rstc;
84
85         struct coda_aux_buf     codebuf;
86         struct coda_aux_buf     tempbuf;
87         struct coda_aux_buf     workbuf;
88         struct gen_pool         *iram_pool;
89         struct coda_aux_buf     iram;
90
91         spinlock_t              irqlock;
92         struct mutex            dev_mutex;
93         struct mutex            coda_mutex;
94         struct workqueue_struct *workqueue;
95         struct v4l2_m2m_dev     *m2m_dev;
96         struct list_head        instances;
97         unsigned long           instance_mask;
98         struct dentry           *debugfs_root;
99 };
100
101 struct coda_codec {
102         u32 mode;
103         u32 src_fourcc;
104         u32 dst_fourcc;
105         u32 max_w;
106         u32 max_h;
107 };
108
109 struct coda_huff_tab;
110
111 struct coda_params {
112         u8                      rot_mode;
113         u8                      h264_intra_qp;
114         u8                      h264_inter_qp;
115         u8                      h264_min_qp;
116         u8                      h264_max_qp;
117         u8                      h264_deblk_enabled;
118         u8                      h264_deblk_alpha;
119         u8                      h264_deblk_beta;
120         u8                      h264_profile_idc;
121         u8                      h264_level_idc;
122         u8                      mpeg4_intra_qp;
123         u8                      mpeg4_inter_qp;
124         u8                      gop_size;
125         int                     intra_refresh;
126         u8                      jpeg_quality;
127         u8                      jpeg_restart_interval;
128         u8                      *jpeg_qmat_tab[3];
129         int                     codec_mode;
130         int                     codec_mode_aux;
131         enum v4l2_mpeg_video_multi_slice_mode slice_mode;
132         u32                     framerate;
133         u16                     bitrate;
134         u16                     vbv_delay;
135         u32                     vbv_size;
136         u32                     slice_max_bits;
137         u32                     slice_max_mb;
138         bool                    force_ipicture;
139 };
140
141 struct coda_buffer_meta {
142         struct list_head        list;
143         u32                     sequence;
144         struct v4l2_timecode    timecode;
145         u64                     timestamp;
146         u32                     start;
147         u32                     end;
148 };
149
150 /* Per-queue, driver-specific private data */
151 struct coda_q_data {
152         unsigned int            width;
153         unsigned int            height;
154         unsigned int            bytesperline;
155         unsigned int            sizeimage;
156         unsigned int            fourcc;
157         struct v4l2_rect        rect;
158 };
159
160 struct coda_iram_info {
161         u32             axi_sram_use;
162         phys_addr_t     buf_bit_use;
163         phys_addr_t     buf_ip_ac_dc_use;
164         phys_addr_t     buf_dbk_y_use;
165         phys_addr_t     buf_dbk_c_use;
166         phys_addr_t     buf_ovl_use;
167         phys_addr_t     buf_btp_use;
168         phys_addr_t     search_ram_paddr;
169         int             search_ram_size;
170         int             remaining;
171         phys_addr_t     next_paddr;
172 };
173
174 #define GDI_LINEAR_FRAME_MAP 0
175 #define GDI_TILED_FRAME_MB_RASTER_MAP 1
176
177 struct coda_ctx;
178
179 struct coda_context_ops {
180         int (*queue_init)(void *priv, struct vb2_queue *src_vq,
181                           struct vb2_queue *dst_vq);
182         int (*reqbufs)(struct coda_ctx *ctx, struct v4l2_requestbuffers *rb);
183         int (*start_streaming)(struct coda_ctx *ctx);
184         int (*prepare_run)(struct coda_ctx *ctx);
185         void (*finish_run)(struct coda_ctx *ctx);
186         void (*run_timeout)(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         enum v4l2_xfer_func             xfer_func;
212         enum v4l2_ycbcr_encoding        ycbcr_enc;
213         enum v4l2_quantization          quantization;
214         struct coda_params              params;
215         struct v4l2_ctrl_handler        ctrls;
216         struct v4l2_fh                  fh;
217         int                             gopcounter;
218         int                             runcounter;
219         char                            vpu_header[3][64];
220         int                             vpu_header_size[3];
221         struct kfifo                    bitstream_fifo;
222         struct mutex                    bitstream_mutex;
223         struct coda_aux_buf             bitstream;
224         bool                            hold;
225         struct coda_aux_buf             parabuf;
226         struct coda_aux_buf             psbuf;
227         struct coda_aux_buf             slicebuf;
228         struct coda_aux_buf             internal_frames[CODA_MAX_FRAMEBUFFERS];
229         u32                             frame_types[CODA_MAX_FRAMEBUFFERS];
230         struct coda_buffer_meta         frame_metas[CODA_MAX_FRAMEBUFFERS];
231         u32                             frame_errors[CODA_MAX_FRAMEBUFFERS];
232         struct list_head                buffer_meta_list;
233         spinlock_t                      buffer_meta_lock;
234         int                             num_metas;
235         struct coda_aux_buf             workbuf;
236         int                             num_internal_frames;
237         int                             idx;
238         int                             reg_idx;
239         struct coda_iram_info           iram_info;
240         int                             tiled_map_type;
241         u32                             bit_stream_param;
242         u32                             frm_dis_flg;
243         u32                             frame_mem_ctrl;
244         int                             display_idx;
245         struct dentry                   *debugfs_entry;
246         bool                            use_bit;
247         bool                            use_vdoa;
248         struct vdoa_ctx                 *vdoa;
249 };
250
251 extern int coda_debug;
252
253 void coda_write(struct coda_dev *dev, u32 data, u32 reg);
254 unsigned int coda_read(struct coda_dev *dev, u32 reg);
255 void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
256                      struct vb2_v4l2_buffer *buf, unsigned int reg_y);
257
258 int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
259                        size_t size, const char *name, struct dentry *parent);
260 void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
261
262 int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
263                             struct vb2_queue *dst_vq);
264 int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
265                             struct vb2_queue *dst_vq);
266
267 int coda_hw_reset(struct coda_ctx *ctx);
268
269 void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list);
270
271 void coda_set_gdi_regs(struct coda_ctx *ctx);
272
273 static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
274                                              enum v4l2_buf_type type)
275 {
276         switch (type) {
277         case V4L2_BUF_TYPE_VIDEO_OUTPUT:
278                 return &(ctx->q_data[V4L2_M2M_SRC]);
279         case V4L2_BUF_TYPE_VIDEO_CAPTURE:
280                 return &(ctx->q_data[V4L2_M2M_DST]);
281         default:
282                 return NULL;
283         }
284 }
285
286 const char *coda_product_name(int product);
287
288 int coda_check_firmware(struct coda_dev *dev);
289
290 static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
291 {
292         return kfifo_len(&ctx->bitstream_fifo);
293 }
294
295 void coda_bit_stream_end_flag(struct coda_ctx *ctx);
296
297 void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
298                        enum vb2_buffer_state state);
299
300 int coda_h264_filler_nal(int size, char *p);
301 int coda_h264_padding(int size, char *p);
302 int coda_h264_profile(int profile_idc);
303 int coda_h264_level(int level_idc);
304 int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb);
305
306 bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
307 int coda_jpeg_write_tables(struct coda_ctx *ctx);
308 void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);
309
310 extern const struct coda_context_ops coda_bit_encode_ops;
311 extern const struct coda_context_ops coda_bit_decode_ops;
312
313 irqreturn_t coda_irq_handler(int irq, void *data);
314
315 #endif /* __CODA_H__ */