summaryrefslogtreecommitdiffstats
path: root/drivers/media/pci/bt8xx/bttvp.h
blob: a534e63b9a37bc5fdb27cc5b558ae885c7186715 (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
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*

    bttv - Bt848 frame grabber driver

    bttv's *private* header file  --  nobody other than bttv itself
    should ever include this file.

    (c) 2000-2002 Gerd Knorr <kraxel@bytesex.org>

*/

#ifndef _BTTVP_H_
#define _BTTVP_H_

#include <linux/types.h>
#include <linux/wait.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/pci.h>
#include <linux/input.h>
#include <linux/mutex.h>
#include <linux/scatterlist.h>
#include <linux/device.h>
#include <asm/io.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fh.h>
#include <media/videobuf2-dma-sg.h>
#include <media/tveeprom.h>
#include <media/rc-core.h>
#include <media/i2c/ir-kbd-i2c.h>
#include <media/drv-intf/tea575x.h>

#include "bt848.h"
#include "bttv.h"
#include "btcx-risc.h"

#ifdef __KERNEL__

#define FORMAT_FLAGS_DITHER       0x01
#define FORMAT_FLAGS_PACKED       0x02
#define FORMAT_FLAGS_PLANAR       0x04
#define FORMAT_FLAGS_RAW          0x08
#define FORMAT_FLAGS_CrCb         0x10

#define RISC_SLOT_O_VBI        4
#define RISC_SLOT_O_FIELD      6
#define RISC_SLOT_E_VBI       10
#define RISC_SLOT_E_FIELD     12
#define RISC_SLOT_LOOP        14

#define RESOURCE_VIDEO_STREAM  2
#define RESOURCE_VBI           4
#define RESOURCE_VIDEO_READ    8

#define RAW_LINES            640
#define RAW_BPL             1024

#define UNSET (-1U)

/* Min. value in VDELAY register. */
#define MIN_VDELAY 2
/* Even to get Cb first, odd for Cr. */
#define MAX_HDELAY (0x3FF & -2)
/* Limits scaled width, which must be a multiple of 4. */
#define MAX_HACTIVE (0x3FF & -4)

#define BTTV_NORMS    (\
		V4L2_STD_PAL    | V4L2_STD_PAL_N | \
		V4L2_STD_PAL_Nc | V4L2_STD_SECAM | \
		V4L2_STD_NTSC   | V4L2_STD_PAL_M | \
		V4L2_STD_PAL_60)
/* ---------------------------------------------------------- */

struct bttv_tvnorm {
	int   v4l2_id;
	char  *name;
	u32   Fsc;
	u16   swidth, sheight; /* scaled standard width, height */
	u16   totalwidth;
	u8    adelay, bdelay, iform;
	u32   scaledtwidth;
	u16   hdelayx1, hactivex1;
	u16   vdelay;
	u8    vbipack;
	u16   vtotal;
	int   sram;
	/* ITU-R frame line number of the first VBI line we can
	   capture, of the first and second field. The last possible line
	   is determined by cropcap.bounds. */
	u16   vbistart[2];
	/* Horizontally this counts fCLKx1 samples following the leading
	   edge of the horizontal sync pulse, vertically ITU-R frame line
	   numbers of the first field times two (2, 4, 6, ... 524 or 624). */
	struct v4l2_cropcap cropcap;
};
extern const struct bttv_tvnorm bttv_tvnorms[];

struct bttv_format {
	int  fourcc;          /* video4linux 2      */
	int  btformat;        /* BT848_COLOR_FMT_*  */
	int  btswap;          /* BT848_COLOR_CTL_*  */
	int  depth;           /* bit/pixel          */
	int  flags;
	int  hshift,vshift;   /* for planar modes   */
};

struct bttv_ir {
	struct rc_dev           *dev;
	struct bttv		*btv;
	struct timer_list       timer;

	char                    name[32];
	char                    phys[32];

	/* Usual gpio signalling */
	u32                     mask_keycode;
	u32                     mask_keydown;
	u32                     mask_keyup;
	u32                     polling;
	u32                     last_gpio;
	int                     shift_by;
	int                     rc5_remote_gap;

	/* RC5 gpio */
	bool			rc5_gpio;   /* Is RC5 legacy GPIO enabled? */
	u32                     last_bit;   /* last raw bit seen */
	u32                     code;       /* raw code under construction */
	ktime_t						base_time;  /* time of last seen code */
	bool                    active;     /* building raw code */
};


/* ---------------------------------------------------------- */

struct bttv_geometry {
	u8  vtc,crop,comb;
	u16 width,hscale,hdelay;
	u16 sheight,vscale,vdelay,vtotal;
};

struct bttv_buffer {
	/* common v4l buffer stuff -- must be first */
	struct vb2_v4l2_buffer vbuf;
	struct list_head list;

	/* bttv specific */
	int                        btformat;
	int                        btswap;
	struct bttv_geometry       geo;
	struct btcx_riscmem        top;
	struct btcx_riscmem        bottom;
};

struct bttv_buffer_set {
	struct bttv_buffer     *top;       /* top field buffer    */
	struct bttv_buffer     *bottom;    /* bottom field buffer */
	unsigned int           top_irq;
	unsigned int           frame_irq;
};

struct bttv_vbi_fmt {
	struct v4l2_vbi_format fmt;

	/* fmt.start[] and count[] refer to this video standard. */
	const struct bttv_tvnorm *tvnorm;

	/* Earliest possible start of video capturing with this
	   v4l2_vbi_format, in struct bttv_crop.rect units. */
	__s32                  end;
};

/* bttv-vbi.c */
extern const struct vb2_ops bttv_vbi_qops;

void bttv_vbi_fmt_reset(struct bttv_vbi_fmt *f, unsigned int norm);

struct bttv_crop {
	/* A cropping rectangle in struct bttv_tvnorm.cropcap units. */
	struct v4l2_rect       rect;

	/* Scaled image size limits with this crop rect. Divide
	   max_height, but not min_height, by two when capturing
	   single fields. See also bttv_crop_reset() and
	   bttv_crop_adjust() in bttv-driver.c. */
	__s32                  min_scaled_width;
	__s32                  min_scaled_height;
	__s32                  max_scaled_width;
	__s32                  max_scaled_height;
};

/* ---------------------------------------------------------- */
/* bttv-risc.c                                                */

/* risc code generators - capture */
int bttv_risc_packed(struct bttv *btv, struct btcx_riscmem *risc,
		     struct scatterlist *sglist,
		     unsigned int offset, unsigned int bpl,
		     unsigned int pitch, unsigned int skip_lines,
		     unsigned int store_lines);

/* control dma register + risc main loop */
void bttv_set_dma(struct bttv *btv, int override);
int bttv_risc_init_main(struct bttv *btv);
int bttv_risc_hook(struct bttv *btv, int slot, struct btcx_riscmem *risc,
		   int irqflags);

/* capture buffer handling */
int bttv_buffer_risc(struct bttv *btv, struct bttv_buffer *buf);
int bttv_buffer_activate_video(struct bttv *btv,
			       struct bttv_buffer_set *set);
int bttv_buffer_risc_vbi(struct bttv *btv, struct bttv_buffer *buf);
int bttv_buffer_activate_vbi(struct bttv *btv,
			     struct bttv_buffer *vbi);

/* ---------------------------------------------------------- */
/* bttv-vbi.c                                                 */

/*
 * 2048 for compatibility with earlier driver versions. The driver really
 * stores 1024 + tvnorm->vbipack * 4 samples per line in the buffer. Note
 * tvnorm->vbipack is <= 0xFF (limit of VBIPACK_LO + HI is 0x1FF DWORDs) and
 * VBI read()s store a frame counter in the last four bytes of the VBI image.
 */
#define VBI_BPL 2048

#define VBI_DEFLINES 16

int bttv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
int bttv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);
int bttv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f);

/* ---------------------------------------------------------- */
/* bttv-gpio.c */

extern const struct bus_type bttv_sub_bus_type;
int bttv_sub_add_device(struct bttv_core *core, char *name);
int bttv_sub_del_devices(struct bttv_core *core);

/* ---------------------------------------------------------- */
/* bttv-input.c                                               */

extern void init_bttv_i2c_ir(struct bttv *btv);

/* ---------------------------------------------------------- */
/* bttv-i2c.c                                                 */
extern int init_bttv_i2c(struct bttv *btv);
extern int fini_bttv_i2c(struct bttv *btv);

/* ---------------------------------------------------------- */
/* bttv-driver.c                                              */

/* insmod options */
extern unsigned int bttv_verbose;
extern unsigned int bttv_debug;
extern unsigned int bttv_gpio;
int check_alloc_btres_lock(struct bttv *btv, int bit);
void free_btres_lock(struct bttv *btv, int bits);
extern void bttv_gpio_tracking(struct bttv *btv, char *comment);

#define dprintk(fmt, ...)			\
do {						\
	if (bttv_debug >= 1)			\
		pr_debug(fmt, ##__VA_ARGS__);	\
} while (0)
#define dprintk_cont(fmt, ...)			\
do {						\
	if (bttv_debug >= 1)			\
		pr_cont(fmt, ##__VA_ARGS__);	\
} while (0)
#define d2printk(fmt, ...)			\
do {						\
	if (bttv_debug >= 2)			\
		printk(fmt, ##__VA_ARGS__);	\
} while (0)

#define BTTV_MAX_FBUF   0x208000
#define BTTV_TIMEOUT    msecs_to_jiffies(500)    /* 0.5 seconds */
#define BTTV_FREE_IDLE  msecs_to_jiffies(1000)   /* one second */


struct bttv_pll_info {
	unsigned int pll_ifreq;    /* PLL input frequency        */
	unsigned int pll_ofreq;    /* PLL output frequency       */
	unsigned int pll_crystal;  /* Crystal used for input     */
	unsigned int pll_current;  /* Currently programmed ofreq */
};

/* for gpio-connected remote control */
struct bttv_input {
	struct input_dev      *dev;
	char                  name[32];
	char                  phys[32];
	u32                   mask_keycode;
	u32                   mask_keydown;
};

struct bttv_suspend_state {
	u32  gpio_enable;
	u32  gpio_data;
	int  disabled;
	int  loop_irq;
	struct bttv_buffer_set video;
	struct bttv_buffer     *vbi;
};

struct bttv_tea575x_gpio {
	u8 data, clk, wren, most;
};

struct bttv {
	struct bttv_core c;

	/* pci device config */
	unsigned short id;
	unsigned char revision;
	unsigned char __iomem *bt848_mmio;   /* pointer to mmio */

	/* card configuration info */
	unsigned int cardid;   /* pci subsystem id (bt878 based ones) */
	unsigned int tuner_type;  /* tuner chip type */
	unsigned int tda9887_conf;
	unsigned int svhs, dig;
	unsigned int has_saa6588:1;
	struct bttv_pll_info pll;
	int triton1;
	int gpioirq;

	int use_i2c_hw;

	/* old gpio interface */
	int shutdown;

	void (*volume_gpio)(struct bttv *btv, __u16 volume);
	void (*audio_mode_gpio)(struct bttv *btv, struct v4l2_tuner *tuner, int set);

	/* new gpio interface */
	spinlock_t gpio_lock;

	/* i2c layer */
	struct i2c_algo_bit_data   i2c_algo;
	struct i2c_client          i2c_client;
	int                        i2c_state, i2c_rc;
	int                        i2c_done;
	wait_queue_head_t          i2c_queue;
	struct v4l2_subdev	  *sd_msp34xx;
	struct v4l2_subdev	  *sd_tvaudio;
	struct v4l2_subdev	  *sd_tda7432;

	/* video4linux (1) */
	struct video_device video_dev;
	struct video_device radio_dev;
	struct video_device vbi_dev;

	/* controls */
	struct v4l2_ctrl_handler   ctrl_handler;
	struct v4l2_ctrl_handler   radio_ctrl_handler;

	/* infrared remote */
	int has_remote;
	struct bttv_ir *remote;

	/* I2C remote data */
	struct IR_i2c_init_data    init_data;

	/* locking */
	spinlock_t s_lock;
	struct mutex lock;
	int resources;

	/* video state */
	unsigned int input;
	unsigned int audio_input;
	unsigned int mute;
	unsigned long tv_freq;
	unsigned int tvnorm;
	v4l2_std_id std;
	int hue, contrast, bright, saturation;
	struct v4l2_framebuffer fbuf;
	__u32 field_count;

	/* various options */
	int opt_combfilter;
	int opt_automute;
	int opt_vcr_hack;
	int opt_uv_ratio;

	/* radio data/state */
	int has_radio;
	int has_radio_tuner;
	int radio_user;
	int radio_uses_msp_demodulator;
	unsigned long radio_freq;

	/* miro/pinnacle + Aimslab VHX
	   philips matchbox (tea5757 radio tuner) support */
	int has_tea575x;
	struct bttv_tea575x_gpio tea_gpio;
	struct snd_tea575x tea;

	/* ISA stuff (Terratec Active Radio Upgrade) */
	int mbox_ior;
	int mbox_iow;
	int mbox_csel;

	/* switch status for multi-controller cards */
	char sw_status[4];

	/* risc memory management data
	   - must acquire s_lock before changing these
	   - only the irq handler is supported to touch top + bottom + vcurr */
	struct btcx_riscmem     main;
	struct list_head        capture;    /* video capture queue */
	struct list_head        vcapture;   /* vbi capture queue   */
	struct bttv_buffer_set  curr;       /* active buffers      */
	struct bttv_buffer      *cvbi;      /* active vbi buffer   */
	int                     loop_irq;
	int                     new_input;

	unsigned long dma_on;
	struct timer_list timeout;
	struct bttv_suspend_state state;

	/* stats */
	unsigned int errors;
	unsigned int framedrop;
	unsigned int irq_total;
	unsigned int irq_me;

	unsigned int users;
	struct v4l2_fh fh;
	enum v4l2_buf_type type;

	enum v4l2_field field;
	int field_last;

	/* video capture */
	struct vb2_queue capq;
	const struct bttv_format *fmt;
	int width;
	int height;

	/* vbi capture */
	struct vb2_queue vbiq;
	struct bttv_vbi_fmt vbi_fmt;
	unsigned int vbi_count[2];

	/* Application called VIDIOC_S_SELECTION. */
	int do_crop;

	/* used to make dvb-bt8xx autoloadable */
	struct work_struct request_module_wk;

	/* Default (0) and current (1) video capturing
	   cropping parameters in bttv_tvnorm.cropcap units. Protected
	   by bttv.lock. */
	struct bttv_crop crop[2];

	/* Earliest possible start of video capturing in
	   bttv_tvnorm.cropcap line units. Set by check_alloc_btres()
	   and free_btres(). Protected by bttv.lock. */
	__s32			vbi_end;

	/* Latest possible end of VBI capturing (= crop[x].rect.top when
	   VIDEO_RESOURCES are locked). Set by check_alloc_btres()
	   and free_btres(). Protected by bttv.lock. */
	__s32			crop_start;
};

static inline struct bttv *to_bttv(struct v4l2_device *v4l2_dev)
{
	return container_of(v4l2_dev, struct bttv, c.v4l2_dev);
}

/* our devices */
#define BTTV_MAX 32
extern unsigned int bttv_num;
extern struct bttv *bttvs[BTTV_MAX];

static inline unsigned int bttv_muxsel(const struct bttv *btv,
				       unsigned int input)
{
	return (bttv_tvcards[btv->c.type].muxsel >> (input * 2)) & 3;
}

#endif

void init_irqreg(struct bttv *btv);

#define btwrite(dat,adr)    writel((dat), btv->bt848_mmio+(adr))
#define btread(adr)         readl(btv->bt848_mmio+(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 /* _BTTVP_H_ */