1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
|
/*
* Copyright (C) STMicroelectronics SA 2015
* Authors: Yannick Fertre <yannick.fertre@st.com>
* Hugues Fruchet <hugues.fruchet@st.com>
* License terms: GNU General Public License (GPL), version 2
*/
#ifndef HVA_H
#define HVA_H
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/videobuf2-v4l2.h>
#include <media/v4l2-mem2mem.h>
#define fh_to_ctx(f) (container_of(f, struct hva_ctx, fh))
#define hva_to_dev(h) (h->dev)
#define ctx_to_dev(c) (c->hva_dev->dev)
#define ctx_to_hdev(c) (c->hva_dev)
#define HVA_PREFIX "[---:----]"
extern const struct hva_enc nv12h264enc;
extern const struct hva_enc nv21h264enc;
/**
* struct hva_frameinfo - information about hva frame
*
* @pixelformat: fourcc code for uncompressed video format
* @width: width of frame
* @height: height of frame
* @aligned_width: width of frame (with encoder alignment constraint)
* @aligned_height: height of frame (with encoder alignment constraint)
* @size: maximum size in bytes required for data
*/
struct hva_frameinfo {
u32 pixelformat;
u32 width;
u32 height;
u32 aligned_width;
u32 aligned_height;
u32 size;
};
/**
* struct hva_streaminfo - information about hva stream
*
* @streamformat: fourcc code of compressed video format (H.264...)
* @width: width of stream
* @height: height of stream
* @profile: profile string
* @level: level string
*/
struct hva_streaminfo {
u32 streamformat;
u32 width;
u32 height;
u8 profile[32];
u8 level[32];
};
/**
* struct hva_controls - hva controls set
*
* @time_per_frame: time per frame in seconds
* @bitrate_mode: bitrate mode (constant bitrate or variable bitrate)
* @gop_size: groupe of picture size
* @bitrate: bitrate (in bps)
* @aspect: video aspect
* @profile: H.264 profile
* @level: H.264 level
* @entropy_mode: H.264 entropy mode (CABAC or CVLC)
* @cpb_size: coded picture buffer size (in kB)
* @dct8x8: transform mode 8x8 enable
* @qpmin: minimum quantizer
* @qpmax: maximum quantizer
* @vui_sar: pixel aspect ratio enable
* @vui_sar_idc: pixel aspect ratio identifier
* @sei_fp: sei frame packing arrangement enable
* @sei_fp_type: sei frame packing arrangement type
*/
struct hva_controls {
struct v4l2_fract time_per_frame;
enum v4l2_mpeg_video_bitrate_mode bitrate_mode;
u32 gop_size;
u32 bitrate;
enum v4l2_mpeg_video_aspect aspect;
enum v4l2_mpeg_video_h264_profile profile;
enum v4l2_mpeg_video_h264_level level;
enum v4l2_mpeg_video_h264_entropy_mode entropy_mode;
u32 cpb_size;
bool dct8x8;
u32 qpmin;
u32 qpmax;
bool vui_sar;
enum v4l2_mpeg_video_h264_vui_sar_idc vui_sar_idc;
bool sei_fp;
enum v4l2_mpeg_video_h264_sei_fp_arrangement_type sei_fp_type;
};
/**
* struct hva_frame - hva frame buffer (output)
*
* @vbuf: video buffer information for V4L2
* @list: V4L2 m2m list that the frame belongs to
* @info: frame information (width, height, format, alignment...)
* @paddr: physical address (for hardware)
* @vaddr: virtual address (kernel can read/write)
* @prepared: true if vaddr/paddr are resolved
*/
struct hva_frame {
struct vb2_v4l2_buffer vbuf;
struct list_head list;
struct hva_frameinfo info;
dma_addr_t paddr;
void *vaddr;
bool prepared;
};
/*
* to_hva_frame() - cast struct vb2_v4l2_buffer * to struct hva_frame *
*/
#define to_hva_frame(vb) \
container_of(vb, struct hva_frame, vbuf)
/**
* struct hva_stream - hva stream buffer (capture)
*
* @v4l2: video buffer information for V4L2
* @list: V4L2 m2m list that the frame belongs to
* @paddr: physical address (for hardware)
* @vaddr: virtual address (kernel can read/write)
* @prepared: true if vaddr/paddr are resolved
* @size: size of the buffer in bytes
* @bytesused: number of bytes occupied by data in the buffer
*/
struct hva_stream {
struct vb2_v4l2_buffer vbuf;
struct list_head list;
dma_addr_t paddr;
void *vaddr;
bool prepared;
unsigned int size;
unsigned int bytesused;
};
/*
* to_hva_stream() - cast struct vb2_v4l2_buffer * to struct hva_stream *
*/
#define to_hva_stream(vb) \
container_of(vb, struct hva_stream, vbuf)
struct hva_dev;
struct hva_enc;
/**
* struct hva_ctx - context of hva instance
*
* @hva_dev: the device that this instance is associated with
* @fh: V4L2 file handle
* @ctrl_handler: V4L2 controls handler
* @ctrls: hva controls set
* @id: instance identifier
* @aborting: true if current job aborted
* @name: instance name (debug purpose)
* @run_work: encode work
* @lock: mutex used to lock access of this context
* @flags: validity of streaminfo and frameinfo fields
* @frame_num: frame number
* @stream_num: stream number
* @max_stream_size: maximum size in bytes required for stream data
* @colorspace: colorspace identifier
* @xfer_func: transfer function identifier
* @ycbcr_enc: Y'CbCr encoding identifier
* @quantization: quantization identifier
* @streaminfo: stream properties
* @frameinfo: frame properties
* @enc: current encoder
* @priv: private codec data for this instance, allocated
* by encoder @open time
* @hw_err: true if hardware error detected
*/
struct hva_ctx {
struct hva_dev *hva_dev;
struct v4l2_fh fh;
struct v4l2_ctrl_handler ctrl_handler;
struct hva_controls ctrls;
u8 id;
bool aborting;
char name[100];
struct work_struct run_work;
/* mutex protecting this data structure */
struct mutex lock;
u32 flags;
u32 frame_num;
u32 stream_num;
u32 max_stream_size;
enum v4l2_colorspace colorspace;
enum v4l2_xfer_func xfer_func;
enum v4l2_ycbcr_encoding ycbcr_enc;
enum v4l2_quantization quantization;
struct hva_streaminfo streaminfo;
struct hva_frameinfo frameinfo;
struct hva_enc *enc;
void *priv;
bool hw_err;
};
#define HVA_FLAG_STREAMINFO 0x0001
#define HVA_FLAG_FRAMEINFO 0x0002
#define HVA_MAX_INSTANCES 16
#define HVA_MAX_ENCODERS 10
#define HVA_MAX_FORMATS HVA_MAX_ENCODERS
/**
* struct hva_dev - abstraction for hva entity
*
* @v4l2_dev: V4L2 device
* @vdev: video device
* @pdev: platform device
* @dev: device
* @lock: mutex used for critical sections & V4L2 ops
* serialization
* @m2m_dev: memory-to-memory V4L2 device information
* @instances: opened instances
* @nb_of_instances: number of opened instances
* @instance_id: rolling counter identifying an instance (debug purpose)
* @regs: register io memory access
* @esram_addr: esram address
* @esram_size: esram size
* @clk: hva clock
* @irq_its: status interruption
* @irq_err: error interruption
* @work_queue: work queue to handle the encode jobs
* @protect_mutex: mutex used to lock access of hardware
* @interrupt: completion interrupt
* @ip_version: IP hardware version
* @encoders: registered encoders
* @nb_of_encoders: number of registered encoders
* @pixelformats: supported uncompressed video formats
* @nb_of_pixelformats: number of supported umcompressed video formats
* @streamformats: supported compressed video formats
* @nb_of_streamformats: number of supported compressed video formats
* @sfl_reg: status fifo level register value
* @sts_reg: status register value
* @lmi_err_reg: local memory interface error register value
* @emi_err_reg: external memory interface error register value
* @hec_mif_err_reg: HEC memory interface error register value
*/
struct hva_dev {
struct v4l2_device v4l2_dev;
struct video_device *vdev;
struct platform_device *pdev;
struct device *dev;
/* mutex protecting vb2_queue structure */
struct mutex lock;
struct v4l2_m2m_dev *m2m_dev;
struct hva_ctx *instances[HVA_MAX_INSTANCES];
unsigned int nb_of_instances;
unsigned int instance_id;
void __iomem *regs;
u32 esram_addr;
u32 esram_size;
struct clk *clk;
int irq_its;
int irq_err;
struct workqueue_struct *work_queue;
/* mutex protecting hardware access */
struct mutex protect_mutex;
struct completion interrupt;
unsigned long int ip_version;
const struct hva_enc *encoders[HVA_MAX_ENCODERS];
u32 nb_of_encoders;
u32 pixelformats[HVA_MAX_FORMATS];
u32 nb_of_pixelformats;
u32 streamformats[HVA_MAX_FORMATS];
u32 nb_of_streamformats;
u32 sfl_reg;
u32 sts_reg;
u32 lmi_err_reg;
u32 emi_err_reg;
u32 hec_mif_err_reg;
};
/**
* struct hva_enc - hva encoder
*
* @name: encoder name
* @streamformat: fourcc code for compressed video format (H.264...)
* @pixelformat: fourcc code for uncompressed video format
* @max_width: maximum width of frame for this encoder
* @max_height: maximum height of frame for this encoder
* @open: open encoder
* @close: close encoder
* @encode: encode a frame (struct hva_frame) in a stream
* (struct hva_stream)
*/
struct hva_enc {
const char *name;
u32 streamformat;
u32 pixelformat;
u32 max_width;
u32 max_height;
int (*open)(struct hva_ctx *ctx);
int (*close)(struct hva_ctx *ctx);
int (*encode)(struct hva_ctx *ctx, struct hva_frame *frame,
struct hva_stream *stream);
};
#endif /* HVA_H */
|
