aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/video/zoran/zoran.h
blob: b336259ce20c9cb0ea18a0abd1f4caa584a6a2e9 (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
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
/*
 * zoran - Iomega Buz driver
 *
 * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
 *
 * based on
 *
 * zoran.0.0.3 Copyright (C) 1998 Dave Perks <dperks@ibm.net>
 *
 * and
 *
 * bttv - Bt848 frame grabber driver
 * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
 *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _BUZ_H_
#define _BUZ_H_

#include <media/v4l2-device.h>

#define ZORAN_VIDMODE_PAL	0
#define ZORAN_VIDMODE_NTSC	1
#define ZORAN_VIDMODE_SECAM	2

struct zoran_requestbuffers {
	unsigned long count;	/* Number of buffers for MJPEG grabbing */
	unsigned long size;	/* Size PER BUFFER in bytes */
};

struct zoran_sync {
	unsigned long frame;	/* number of buffer that has been free'd */
	unsigned long length;	/* number of code bytes in buffer (capture only) */
	unsigned long seq;	/* frame sequence number */
	struct timeval timestamp;	/* timestamp */
};

struct zoran_status {
	int input;		/* Input channel, has to be set prior to BUZIOC_G_STATUS */
	int signal;		/* Returned: 1 if valid video signal detected */
	int norm;		/* Returned: ZORAN_VIDMODE_PAL or ZORAN_VIDMODE_NTSC */
	int color;		/* Returned: 1 if color signal detected */
};

struct zoran_params {

	/* The following parameters can only be queried */

	int major_version;	/* Major version number of driver */
	int minor_version;	/* Minor version number of driver */

	/* Main control parameters */

	int input;		/* Input channel: 0 = Composite, 1 = S-VHS */
	int norm;		/* Norm: ZORAN_VIDMODE_PAL or ZORAN_VIDMODE_NTSC */
	int decimation;		/* decimation of captured video,
				 * enlargement of video played back.
				 * Valid values are 1, 2, 4 or 0.
				 * 0 is a special value where the user
				 * has full control over video scaling */

	/* The following parameters only have to be set if decimation==0,
	 * for other values of decimation they provide the data how the image is captured */

	int HorDcm;		/* Horizontal decimation: 1, 2 or 4 */
	int VerDcm;		/* Vertical decimation: 1 or 2 */
	int TmpDcm;		/* Temporal decimation: 1 or 2,
				 * if TmpDcm==2 in capture every second frame is dropped,
				 * in playback every frame is played twice */
	int field_per_buff;	/* Number of fields per buffer: 1 or 2 */
	int img_x;		/* start of image in x direction */
	int img_y;		/* start of image in y direction */
	int img_width;		/* image width BEFORE decimation,
				 * must be a multiple of HorDcm*16 */
	int img_height;		/* image height BEFORE decimation,
				 * must be a multiple of VerDcm*8 */

	/* --- End of parameters for decimation==0 only --- */

	/* JPEG control parameters */

	int quality;		/* Measure for quality of compressed images.
				 * Scales linearly with the size of the compressed images.
				 * Must be between 0 and 100, 100 is a compression
				 * ratio of 1:4 */

	int odd_even;		/* Which field should come first ??? */

	int APPn;		/* Number of APP segment to be written, must be 0..15 */
	int APP_len;		/* Length of data in JPEG APPn segment */
	char APP_data[60];	/* Data in the JPEG APPn segment. */

	int COM_len;		/* Length of data in JPEG COM segment */
	char COM_data[60];	/* Data in JPEG COM segment */

	unsigned long jpeg_markers;	/* Which markers should go into the JPEG output.
					 * Unless you exactly know what you do, leave them untouched.
					 * Inluding less markers will make the resulting code
					 * smaller, but there will be fewer applications
					 * which can read it.
					 * The presence of the APP and COM marker is
					 * influenced by APP0_len and COM_len ONLY! */
#define JPEG_MARKER_DHT (1<<3)	/* Define Huffman Tables */
#define JPEG_MARKER_DQT (1<<4)	/* Define Quantization Tables */
#define JPEG_MARKER_DRI (1<<5)	/* Define Restart Interval */
#define JPEG_MARKER_COM (1<<6)	/* Comment segment */
#define JPEG_MARKER_APP (1<<7)	/* App segment, driver will allways use APP0 */

	int VFIFO_FB;		/* Flag for enabling Video Fifo Feedback.
				 * If this flag is turned on and JPEG decompressing
				 * is going to the screen, the decompress process
				 * is stopped every time the Video Fifo is full.
				 * This enables a smooth decompress to the screen
				 * but the video output signal will get scrambled */

	/* Misc */

	char reserved[312];	/* Makes 512 bytes for this structure */
};

/*
Private IOCTL to set up for displaying MJPEG
*/
#define BUZIOC_G_PARAMS       _IOR ('v', BASE_VIDIOC_PRIVATE+0,  struct zoran_params)
#define BUZIOC_S_PARAMS       _IOWR('v', BASE_VIDIOC_PRIVATE+1,  struct zoran_params)
#define BUZIOC_REQBUFS        _IOWR('v', BASE_VIDIOC_PRIVATE+2,  struct zoran_requestbuffers)
#define BUZIOC_QBUF_CAPT      _IOW ('v', BASE_VIDIOC_PRIVATE+3,  int)
#define BUZIOC_QBUF_PLAY      _IOW ('v', BASE_VIDIOC_PRIVATE+4,  int)
#define BUZIOC_SYNC           _IOR ('v', BASE_VIDIOC_PRIVATE+5,  struct zoran_sync)
#define BUZIOC_G_STATUS       _IOWR('v', BASE_VIDIOC_PRIVATE+6,  struct zoran_status)


#ifdef __KERNEL__

#define MAJOR_VERSION 0		/* driver major version */
#define MINOR_VERSION 10	/* driver minor version */
#define RELEASE_VERSION 0	/* release version */

#define ZORAN_NAME    "ZORAN"	/* name of the device */

#define ZR_DEVNAME(zr) ((zr)->name)

#define   BUZ_MAX_WIDTH   (zr->timing->Wa)
#define   BUZ_MAX_HEIGHT  (zr->timing->Ha)
#define   BUZ_MIN_WIDTH    32	/* never display less than 32 pixels */
#define   BUZ_MIN_HEIGHT   24	/* never display less than 24 rows */

#define BUZ_NUM_STAT_COM    4
#define BUZ_MASK_STAT_COM   3

#define BUZ_MAX_FRAME     256	/* Must be a power of 2 */
#define BUZ_MASK_FRAME    255	/* Must be BUZ_MAX_FRAME-1 */

#define BUZ_MAX_INPUT       16

#if VIDEO_MAX_FRAME <= 32
#   define   V4L_MAX_FRAME   32
#elif VIDEO_MAX_FRAME <= 64
#   define   V4L_MAX_FRAME   64
#else
#   error   "Too many video frame buffers to handle"
#endif
#define   V4L_MASK_FRAME   (V4L_MAX_FRAME - 1)

#define MAX_FRAME (BUZ_MAX_FRAME > VIDEO_MAX_FRAME ? BUZ_MAX_FRAME : VIDEO_MAX_FRAME)

#include "zr36057.h"

enum card_type {
	UNKNOWN = -1,

	/* Pinnacle/Miro */
	DC10_old,		/* DC30 like */
	DC10_new,		/* DC10plus like */
	DC10plus,
	DC30,
	DC30plus,

	/* Linux Media Labs */
	LML33,
	LML33R10,

	/* Iomega */
	BUZ,

	/* AverMedia */
	AVS6EYES,

	/* total number of cards */
	NUM_CARDS
};

enum zoran_codec_mode {
	BUZ_MODE_IDLE,		/* nothing going on */
	BUZ_MODE_MOTION_COMPRESS,	/* grabbing frames */
	BUZ_MODE_MOTION_DECOMPRESS,	/* playing frames */
	BUZ_MODE_STILL_COMPRESS,	/* still frame conversion */
	BUZ_MODE_STILL_DECOMPRESS	/* still frame conversion */
};

enum zoran_buffer_state {
	BUZ_STATE_USER,		/* buffer is owned by application */
	BUZ_STATE_PEND,		/* buffer is queued in pend[] ready to feed to I/O */
	BUZ_STATE_DMA,		/* buffer is queued in dma[] for I/O */
	BUZ_STATE_DONE		/* buffer is ready to return to application */
};

enum zoran_map_mode {
	ZORAN_MAP_MODE_RAW,
	ZORAN_MAP_MODE_JPG_REC,
#define ZORAN_MAP_MODE_JPG ZORAN_MAP_MODE_JPG_REC
	ZORAN_MAP_MODE_JPG_PLAY,
};

enum gpio_type {
	ZR_GPIO_JPEG_SLEEP = 0,
	ZR_GPIO_JPEG_RESET,
	ZR_GPIO_JPEG_FRAME,
	ZR_GPIO_VID_DIR,
	ZR_GPIO_VID_EN,
	ZR_GPIO_VID_RESET,
	ZR_GPIO_CLK_SEL1,
	ZR_GPIO_CLK_SEL2,
	ZR_GPIO_MAX,
};

enum gpcs_type {
	GPCS_JPEG_RESET = 0,
	GPCS_JPEG_START,
	GPCS_MAX,
};

struct zoran_format {
	char *name;
	__u32 fourcc;
	int colorspace;
	int depth;
	__u32 flags;
	__u32 vfespfr;
};
/* flags */
#define ZORAN_FORMAT_COMPRESSED 1<<0
#define ZORAN_FORMAT_OVERLAY    1<<1
#define ZORAN_FORMAT_CAPTURE	1<<2
#define ZORAN_FORMAT_PLAYBACK	1<<3

/* overlay-settings */
struct zoran_overlay_settings {
	int is_set;
	int x, y, width, height;	/* position */
	int clipcount;		/* position and number of clips */
	const struct zoran_format *format;	/* overlay format */
};

/* v4l-capture settings */
struct zoran_v4l_settings {
	int width, height, bytesperline;	/* capture size */
	const struct zoran_format *format;	/* capture format */
};

/* jpg-capture/-playback settings */
struct zoran_jpg_settings {
	int decimation;		/* this bit is used to set everything to default */
	int HorDcm, VerDcm, TmpDcm;	/* capture decimation settings (TmpDcm=1 means both fields) */
	int field_per_buff, odd_even;	/* field-settings (odd_even=1 (+TmpDcm=1) means top-field-first) */
	int img_x, img_y, img_width, img_height;	/* crop settings (subframe capture) */
	struct v4l2_jpegcompression jpg_comp;	/* JPEG-specific capture settings */
};

struct zoran_mapping {
	struct file *file;
	int count;
};

struct zoran_buffer {
	struct zoran_mapping *map;
	enum zoran_buffer_state state;	/* state: unused/pending/dma/done */
	struct zoran_sync bs;		/* DONE: info to return to application */
	union {
		struct {
			__le32 *frag_tab;	/* addresses of frag table */
			u32 frag_tab_bus;	/* same value cached to save time in ISR */
		} jpg;
		struct {
			char *fbuffer;		/* virtual address of frame buffer */
			unsigned long fbuffer_phys;/* physical address of frame buffer */
			unsigned long fbuffer_bus;/* bus address of frame buffer */
		} v4l;
	};
};

enum zoran_lock_activity {
	ZORAN_FREE,		/* free for use */
	ZORAN_ACTIVE,		/* active but unlocked */
	ZORAN_LOCKED,		/* locked */
};

/* buffer collections */
struct zoran_buffer_col {
	enum zoran_lock_activity active;	/* feature currently in use? */
	unsigned int num_buffers, buffer_size;
	struct zoran_buffer buffer[MAX_FRAME];	/* buffers */
	u8 allocated;		/* Flag if buffers are allocated  */
	u8 need_contiguous;	/* Flag if contiguous buffers are needed */
	/* only applies to jpg buffers, raw buffers are always contiguous */
};

struct zoran;

/* zoran_fh contains per-open() settings */
struct zoran_fh {
	struct zoran *zr;

	enum zoran_map_mode map_mode;		/* Flag which bufferset will map by next mmap() */

	struct zoran_overlay_settings overlay_settings;
	u32 *overlay_mask;			/* overlay mask */
	enum zoran_lock_activity overlay_active;/* feature currently in use? */

	struct zoran_buffer_col buffers;	/* buffers' info */

	struct zoran_v4l_settings v4l_settings;	/* structure with a lot of things to play with */
	struct zoran_jpg_settings jpg_settings;	/* structure with a lot of things to play with */
};

struct card_info {
	enum card_type type;
	char name[32];
	const char *i2c_decoder;	/* i2c decoder device */
	const unsigned short *addrs_decoder;
	const char *i2c_encoder;	/* i2c encoder device */
	const unsigned short *addrs_encoder;
	u16 video_vfe, video_codec;			/* videocodec types */
	u16 audio_chip;					/* audio type */

	int inputs;		/* number of video inputs */
	struct input {
		int muxsel;
		char name[32];
	} input[BUZ_MAX_INPUT];

	v4l2_std_id norms;
	struct tvnorm *tvn[3];	/* supported TV norms */

	u32 jpeg_int;		/* JPEG interrupt */
	u32 vsync_int;		/* VSYNC interrupt */
	s8 gpio[ZR_GPIO_MAX];
	u8 gpcs[GPCS_MAX];

	struct vfe_polarity vfe_pol;
	u8 gpio_pol[ZR_GPIO_MAX];

	/* is the /GWS line conected? */
	u8 gws_not_connected;

	/* avs6eyes mux setting */
	u8 input_mux;

	void (*init) (struct zoran * zr);
};

struct zoran {
	struct v4l2_device v4l2_dev;
	struct video_device *video_dev;

	struct i2c_adapter i2c_adapter;	/* */
	struct i2c_algo_bit_data i2c_algo;	/* */
	u32 i2cbr;

	struct v4l2_subdev *decoder;	/* video decoder sub-device */
	struct v4l2_subdev *encoder;	/* video encoder sub-device */

	struct videocodec *codec;	/* video codec */
	struct videocodec *vfe;	/* video front end */

	struct mutex resource_lock;	/* prevent evil stuff */
	struct mutex other_lock;	/* please merge with above */

	u8 initialized;		/* flag if zoran has been correctly initialized */
	int user;		/* number of current users */
	struct card_info card;
	struct tvnorm *timing;

	unsigned short id;	/* number of this device */
	char name[32];		/* name of this device */
	struct pci_dev *pci_dev;	/* PCI device */
	unsigned char revision;	/* revision of zr36057 */
	unsigned char __iomem *zr36057_mem;/* pointer to mapped IO memory */

	spinlock_t spinlock;	/* Spinlock */

	/* Video for Linux parameters */
	int input;	/* card's norm and input */
	v4l2_std_id norm;

	/* Current buffer params */
	void    *vbuf_base;
	int     vbuf_height, vbuf_width;
	int     vbuf_depth;
	int     vbuf_bytesperline;

	struct zoran_overlay_settings overlay_settings;
	u32 *overlay_mask;	/* overlay mask */
	enum zoran_lock_activity overlay_active;	/* feature currently in use? */

	wait_queue_head_t v4l_capq;

	int v4l_overlay_active;	/* Overlay grab is activated */
	int v4l_memgrab_active;	/* Memory grab is activated */

	int v4l_grab_frame;	/* Frame number being currently grabbed */
#define NO_GRAB_ACTIVE (-1)
	unsigned long v4l_grab_seq;	/* Number of frames grabbed */
	struct zoran_v4l_settings v4l_settings;	/* structure with a lot of things to play with */

	/* V4L grab queue of frames pending */
	unsigned long v4l_pend_head;
	unsigned long v4l_pend_tail;
	unsigned long v4l_sync_tail;
	int v4l_pend[V4L_MAX_FRAME];
	struct zoran_buffer_col v4l_buffers;	/* V4L buffers' info */

	/* Buz MJPEG parameters */
	enum zoran_codec_mode codec_mode;	/* status of codec */
	struct zoran_jpg_settings jpg_settings;	/* structure with a lot of things to play with */

	wait_queue_head_t jpg_capq;	/* wait here for grab to finish */

	/* grab queue counts/indices, mask with BUZ_MASK_STAT_COM before using as index */
	/* (dma_head - dma_tail) is number active in DMA, must be <= BUZ_NUM_STAT_COM */
	/* (value & BUZ_MASK_STAT_COM) corresponds to index in stat_com table */
	unsigned long jpg_que_head;	/* Index where to put next buffer which is queued */
	unsigned long jpg_dma_head;	/* Index of next buffer which goes into stat_com  */
	unsigned long jpg_dma_tail;	/* Index of last buffer in stat_com               */
	unsigned long jpg_que_tail;	/* Index of last buffer in queue                  */
	unsigned long jpg_seq_num;	/* count of frames since grab/play started        */
	unsigned long jpg_err_seq;	/* last seq_num before error                      */
	unsigned long jpg_err_shift;
	unsigned long jpg_queued_num;	/* count of frames queued since grab/play started */

	/* zr36057's code buffer table */
	__le32 *stat_com;		/* stat_com[i] is indexed by dma_head/tail & BUZ_MASK_STAT_COM */

	/* (value & BUZ_MASK_FRAME) corresponds to index in pend[] queue */
	int jpg_pend[BUZ_MAX_FRAME];

	/* array indexed by frame number */
	struct zoran_buffer_col jpg_buffers;	/* MJPEG buffers' info */

	/* Additional stuff for testing */
#ifdef CONFIG_PROC_FS
	struct proc_dir_entry *zoran_proc;
#else
	void *zoran_proc;
#endif
	int testing;
	int jpeg_error;
	int intr_counter_GIRQ1;
	int intr_counter_GIRQ0;
	int intr_counter_CodRepIRQ;
	int intr_counter_JPEGRepIRQ;
	int field_counter;
	int IRQ1_in;
	int IRQ1_out;
	int JPEG_in;
	int JPEG_out;
	int JPEG_0;
	int JPEG_1;
	int END_event_missed;
	int JPEG_missed;
	int JPEG_error;
	int num_errors;
	int JPEG_max_missed;
	int JPEG_min_missed;

	u32 last_isr;
	unsigned long frame_num;

	wait_queue_head_t test_q;
};

static inline struct zoran *to_zoran(struct v4l2_device *v4l2_dev)
{
	return container_of(v4l2_dev, struct zoran, v4l2_dev);
}

/* There was something called _ALPHA_BUZ that used the PCI address instead of
 * the kernel iomapped address for btread/btwrite.  */
#define btwrite(dat,adr)    writel((dat), zr->zr36057_mem+(adr))
#define btread(adr)         readl(zr->zr36057_mem+(adr))

#define btand(dat,adr)      btwrite((dat) & btread(adr), adr)
#define btor(dat,adr)       btwrite((dat) | btread(adr), adr)
#define btaor(dat,mask,adr) btwrite((dat) | ((mask) & btread(adr)), adr)

#endif				/* __kernel__ */

#endif