aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/platform/coda/coda.h
blob: 848bf1da401e23723a60442b796c866c1b07fbcf (plain)
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
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Coda multi-standard codec IP
 *
 * Copyright (C) 2012 Vista Silicon S.L.
 *    Javier Martin, <javier.martin@vista-silicon.com>
 *    Xavier Duret
 * Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
 */

#ifndef __CODA_H__
#define __CODA_H__

#include <linux/debugfs.h>
#include <linux/idr.h>
#include <linux/irqreturn.h>
#include <linux/mutex.h>
#include <linux/kfifo.h>
#include <linux/videodev2.h>

#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/videobuf2-v4l2.h>

#include "coda_regs.h"

#define CODA_MAX_FRAMEBUFFERS	19
#define FMO_SLICE_SAVE_BUF_SIZE	(32)

enum {
	V4L2_M2M_SRC = 0,
	V4L2_M2M_DST = 1,
};

enum coda_inst_type {
	CODA_INST_ENCODER,
	CODA_INST_DECODER,
};

enum coda_product {
	CODA_DX6 = 0xf001,
	CODA_HX4 = 0xf00a,
	CODA_7541 = 0xf012,
	CODA_960 = 0xf020,
};

struct coda_video_device;

struct coda_devtype {
	char			*firmware[3];
	enum coda_product	product;
	const struct coda_codec	*codecs;
	unsigned int		num_codecs;
	const struct coda_video_device **vdevs;
	unsigned int		num_vdevs;
	size_t			workbuf_size;
	size_t			tempbuf_size;
	size_t			iram_size;
};

struct coda_aux_buf {
	void			*vaddr;
	dma_addr_t		paddr;
	u32			size;
	struct debugfs_blob_wrapper blob;
	struct dentry		*dentry;
};

struct coda_dev {
	struct v4l2_device	v4l2_dev;
	struct video_device	vfd[5];
	struct device		*dev;
	const struct coda_devtype *devtype;
	int			firmware;
	struct vdoa_data	*vdoa;

	void __iomem		*regs_base;
	struct clk		*clk_per;
	struct clk		*clk_ahb;
	struct reset_control	*rstc;

	struct coda_aux_buf	codebuf;
	struct coda_aux_buf	tempbuf;
	struct coda_aux_buf	workbuf;
	struct gen_pool		*iram_pool;
	struct coda_aux_buf	iram;

	spinlock_t		irqlock;
	struct mutex		dev_mutex;
	struct mutex		coda_mutex;
	struct workqueue_struct	*workqueue;
	struct v4l2_m2m_dev	*m2m_dev;
	struct ida		ida;
	struct dentry		*debugfs_root;
};

struct coda_codec {
	u32 mode;
	u32 src_fourcc;
	u32 dst_fourcc;
	u32 max_w;
	u32 max_h;
};

struct coda_huff_tab;

struct coda_params {
	u8			rot_mode;
	u8			h264_intra_qp;
	u8			h264_inter_qp;
	u8			h264_min_qp;
	u8			h264_max_qp;
	u8			h264_disable_deblocking_filter_idc;
	s8			h264_slice_alpha_c0_offset_div2;
	s8			h264_slice_beta_offset_div2;
	bool			h264_constrained_intra_pred_flag;
	s8			h264_chroma_qp_index_offset;
	u8			h264_profile_idc;
	u8			h264_level_idc;
	u8			mpeg2_profile_idc;
	u8			mpeg2_level_idc;
	u8			mpeg4_intra_qp;
	u8			mpeg4_inter_qp;
	u8			gop_size;
	int			intra_refresh;
	u8			jpeg_quality;
	u8			jpeg_restart_interval;
	u8			*jpeg_qmat_tab[3];
	int			codec_mode;
	int			codec_mode_aux;
	enum v4l2_mpeg_video_multi_slice_mode slice_mode;
	u32			framerate;
	u16			bitrate;
	u16			vbv_delay;
	u32			vbv_size;
	u32			slice_max_bits;
	u32			slice_max_mb;
	bool			force_ipicture;
	bool			gop_size_changed;
	bool			bitrate_changed;
	bool			framerate_changed;
	bool			h264_intra_qp_changed;
	bool			intra_refresh_changed;
	bool			slice_mode_changed;
};

struct coda_buffer_meta {
	struct list_head	list;
	u32			sequence;
	struct v4l2_timecode	timecode;
	u64			timestamp;
	unsigned int		start;
	unsigned int		end;
	bool			last;
};

/* Per-queue, driver-specific private data */
struct coda_q_data {
	unsigned int		width;
	unsigned int		height;
	unsigned int		bytesperline;
	unsigned int		sizeimage;
	unsigned int		fourcc;
	struct v4l2_rect	rect;
};

struct coda_iram_info {
	u32		axi_sram_use;
	phys_addr_t	buf_bit_use;
	phys_addr_t	buf_ip_ac_dc_use;
	phys_addr_t	buf_dbk_y_use;
	phys_addr_t	buf_dbk_c_use;
	phys_addr_t	buf_ovl_use;
	phys_addr_t	buf_btp_use;
	phys_addr_t	search_ram_paddr;
	int		search_ram_size;
	int		remaining;
	phys_addr_t	next_paddr;
};

#define GDI_LINEAR_FRAME_MAP 0
#define GDI_TILED_FRAME_MB_RASTER_MAP 1

struct coda_ctx;

struct coda_context_ops {
	int (*queue_init)(void *priv, struct vb2_queue *src_vq,
			  struct vb2_queue *dst_vq);
	int (*reqbufs)(struct coda_ctx *ctx, struct v4l2_requestbuffers *rb);
	int (*start_streaming)(struct coda_ctx *ctx);
	int (*prepare_run)(struct coda_ctx *ctx);
	void (*finish_run)(struct coda_ctx *ctx);
	void (*run_timeout)(struct coda_ctx *ctx);
	void (*seq_init_work)(struct work_struct *work);
	void (*seq_end_work)(struct work_struct *work);
	void (*release)(struct coda_ctx *ctx);
};

struct coda_internal_frame {
	struct coda_aux_buf		buf;
	struct coda_buffer_meta		meta;
	u32				type;
	u32				error;
};

struct coda_ctx {
	struct coda_dev			*dev;
	struct mutex			buffer_mutex;
	struct work_struct		pic_run_work;
	struct work_struct		seq_init_work;
	struct work_struct		seq_end_work;
	struct completion		completion;
	const struct coda_video_device	*cvd;
	const struct coda_context_ops	*ops;
	int				aborting;
	int				initialized;
	int				streamon_out;
	int				streamon_cap;
	u32				qsequence;
	u32				osequence;
	u32				sequence_offset;
	struct coda_q_data		q_data[2];
	enum coda_inst_type		inst_type;
	const struct coda_codec		*codec;
	enum v4l2_colorspace		colorspace;
	enum v4l2_xfer_func		xfer_func;
	enum v4l2_ycbcr_encoding	ycbcr_enc;
	enum v4l2_quantization		quantization;
	struct coda_params		params;
	struct v4l2_ctrl_handler	ctrls;
	struct v4l2_ctrl		*h264_profile_ctrl;
	struct v4l2_ctrl		*h264_level_ctrl;
	struct v4l2_ctrl		*mpeg2_profile_ctrl;
	struct v4l2_ctrl		*mpeg2_level_ctrl;
	struct v4l2_ctrl		*mpeg4_profile_ctrl;
	struct v4l2_ctrl		*mpeg4_level_ctrl;
	struct v4l2_fh			fh;
	int				gopcounter;
	int				runcounter;
	char				vpu_header[3][64];
	int				vpu_header_size[3];
	struct kfifo			bitstream_fifo;
	struct mutex			bitstream_mutex;
	struct coda_aux_buf		bitstream;
	bool				hold;
	struct coda_aux_buf		parabuf;
	struct coda_aux_buf		psbuf;
	struct coda_aux_buf		slicebuf;
	struct coda_internal_frame	internal_frames[CODA_MAX_FRAMEBUFFERS];
	struct list_head		buffer_meta_list;
	spinlock_t			buffer_meta_lock;
	int				num_metas;
	struct coda_aux_buf		workbuf;
	int				num_internal_frames;
	int				idx;
	int				reg_idx;
	struct coda_iram_info		iram_info;
	int				tiled_map_type;
	u32				bit_stream_param;
	u32				frm_dis_flg;
	u32				frame_mem_ctrl;
	u32				para_change;
	int				display_idx;
	struct dentry			*debugfs_entry;
	bool				use_bit;
	bool				use_vdoa;
	struct vdoa_ctx			*vdoa;
	/*
	 * wakeup mutex used to serialize encoder stop command and finish_run,
	 * ensures that finish_run always either flags the last returned buffer
	 * or wakes up the capture queue to signal EOS afterwards.
	 */
	struct mutex			wakeup_mutex;
};

extern int coda_debug;

#define coda_dbg(level, ctx, fmt, arg...)				\
	do {								\
		if (coda_debug >= (level))				\
			v4l2_dbg((level), coda_debug, &(ctx)->dev->v4l2_dev, \
			 "%u: " fmt, (ctx)->idx, ##arg);		\
	} while (0)

void coda_write(struct coda_dev *dev, u32 data, u32 reg);
unsigned int coda_read(struct coda_dev *dev, u32 reg);
void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data,
		     struct vb2_v4l2_buffer *buf, unsigned int reg_y);

int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
		       size_t size, const char *name, struct dentry *parent);
void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);

int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
			    struct vb2_queue *dst_vq);
int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
			    struct vb2_queue *dst_vq);

int coda_hw_reset(struct coda_ctx *ctx);

void coda_fill_bitstream(struct coda_ctx *ctx, struct list_head *buffer_list);

void coda_set_gdi_regs(struct coda_ctx *ctx);

static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
					     enum v4l2_buf_type type)
{
	switch (type) {
	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
		return &(ctx->q_data[V4L2_M2M_SRC]);
	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
		return &(ctx->q_data[V4L2_M2M_DST]);
	default:
		return NULL;
	}
}

const char *coda_product_name(int product);

int coda_check_firmware(struct coda_dev *dev);

static inline unsigned int coda_get_bitstream_payload(struct coda_ctx *ctx)
{
	return kfifo_len(&ctx->bitstream_fifo);
}

/*
 * The bitstream prefetcher needs to read at least 2 256 byte periods past
 * the desired bitstream position for all data to reach the decoder.
 */
static inline bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx,
						 unsigned int pos)
{
	return (int)(ctx->bitstream_fifo.kfifo.in - ALIGN(pos, 256)) > 512;
}

bool coda_bitstream_can_fetch_past(struct coda_ctx *ctx, unsigned int pos);
int coda_bitstream_flush(struct coda_ctx *ctx);

void coda_bit_stream_end_flag(struct coda_ctx *ctx);

void coda_m2m_buf_done(struct coda_ctx *ctx, struct vb2_v4l2_buffer *buf,
		       enum vb2_buffer_state state);

int coda_h264_filler_nal(int size, char *p);
int coda_h264_padding(int size, char *p);
int coda_h264_profile(int profile_idc);
int coda_h264_level(int level_idc);
int coda_sps_parse_profile(struct coda_ctx *ctx, struct vb2_buffer *vb);
int coda_h264_sps_fixup(struct coda_ctx *ctx, int width, int height, char *buf,
			int *size, int max_size);

int coda_mpeg2_profile(int profile_idc);
int coda_mpeg2_level(int level_idc);
u32 coda_mpeg2_parse_headers(struct coda_ctx *ctx, u8 *buf, u32 size);
int coda_mpeg4_profile(int profile_idc);
int coda_mpeg4_level(int level_idc);
u32 coda_mpeg4_parse_headers(struct coda_ctx *ctx, u8 *buf, u32 size);

void coda_update_profile_level_ctrls(struct coda_ctx *ctx, u8 profile_idc,
				     u8 level_idc);

bool coda_jpeg_check_buffer(struct coda_ctx *ctx, struct vb2_buffer *vb);
int coda_jpeg_write_tables(struct coda_ctx *ctx);
void coda_set_jpeg_compression_quality(struct coda_ctx *ctx, int quality);

extern const struct coda_context_ops coda_bit_encode_ops;
extern const struct coda_context_ops coda_bit_decode_ops;

irqreturn_t coda_irq_handler(int irq, void *data);

#endif /* __CODA_H__ */