Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Loading...
  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
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
/*
 *
 * v4l2 device driver for cx2388x based TV cards
 *
 * (c) 2003,04 Gerd Knorr <kraxel@bytesex.org> [SUSE Labs]
 *
 *  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.
 */

#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/videodev2.h>
#include <linux/kdev_t.h>

#include <media/v4l2-device.h>
#include <media/v4l2-fh.h>
#include <media/tuner.h>
#include <media/tveeprom.h>
#include <media/videobuf-dma-sg.h>
#include <media/cx2341x.h>
#include <media/videobuf-dvb.h>
#include <media/ir-kbd-i2c.h>
#include <media/wm8775.h>

#include "btcx-risc.h"
#include "cx88-reg.h"
#include "tuner-xc2028.h"

#include <linux/mutex.h>

#define CX88_VERSION "0.0.9"

#define UNSET (-1U)

#define CX88_MAXBOARDS 8

/* Max number of inputs by card */
#define MAX_CX88_INPUT 8

/* ----------------------------------------------------------- */
/* defines and enums                                           */

/* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM/LC */
#define CX88_NORMS (V4L2_STD_ALL 		\
		    & ~V4L2_STD_PAL_H		\
		    & ~V4L2_STD_NTSC_M_KR	\
		    & ~V4L2_STD_SECAM_LC)

#define FORMAT_FLAGS_PACKED       0x01
#define FORMAT_FLAGS_PLANAR       0x02

#define VBI_LINE_COUNT              17
#define VBI_LINE_LENGTH           2048

#define AUD_RDS_LINES		     4

/* need "shadow" registers for some write-only ones ... */
#define SHADOW_AUD_VOL_CTL           1
#define SHADOW_AUD_BAL_CTL           2
#define SHADOW_MAX                   3

/* FM Radio deemphasis type */
enum cx88_deemph_type {
	FM_NO_DEEMPH = 0,
	FM_DEEMPH_50,
	FM_DEEMPH_75
};

enum cx88_board_type {
	CX88_BOARD_NONE = 0,
	CX88_MPEG_DVB,
	CX88_MPEG_BLACKBIRD
};

enum cx8802_board_access {
	CX8802_DRVCTL_SHARED    = 1,
	CX8802_DRVCTL_EXCLUSIVE = 2,
};

/* ----------------------------------------------------------- */
/* tv norms                                                    */

static inline unsigned int norm_maxw(v4l2_std_id norm)
{
	return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768;
}


static inline unsigned int norm_maxh(v4l2_std_id norm)
{
	return (norm & V4L2_STD_625_50) ? 576 : 480;
}

/* ----------------------------------------------------------- */
/* static data                                                 */

struct cx8800_fmt {
	const char  *name;
	u32   fourcc;          /* v4l2 format id */
	int   depth;
	int   flags;
	u32   cxformat;
};

/* ----------------------------------------------------------- */
/* SRAM memory management data (see cx88-core.c)               */

#define SRAM_CH21 0   /* video */
#define SRAM_CH22 1
#define SRAM_CH23 2
#define SRAM_CH24 3   /* vbi   */
#define SRAM_CH25 4   /* audio */
#define SRAM_CH26 5
#define SRAM_CH28 6   /* mpeg */
#define SRAM_CH27 7   /* audio rds */
/* more */

struct sram_channel {
	const char *name;
	u32  cmds_start;
	u32  ctrl_start;
	u32  cdt;
	u32  fifo_start;
	u32  fifo_size;
	u32  ptr1_reg;
	u32  ptr2_reg;
	u32  cnt1_reg;
	u32  cnt2_reg;
};
extern const struct sram_channel cx88_sram_channels[];

/* ----------------------------------------------------------- */
/* card configuration                                          */

#define CX88_BOARD_NOAUTO               UNSET
#define CX88_BOARD_UNKNOWN                  0
#define CX88_BOARD_HAUPPAUGE                1
#define CX88_BOARD_GDI                      2
#define CX88_BOARD_PIXELVIEW                3
#define CX88_BOARD_ATI_WONDER_PRO           4
#define CX88_BOARD_WINFAST2000XP_EXPERT     5
#define CX88_BOARD_AVERTV_STUDIO_303        6
#define CX88_BOARD_MSI_TVANYWHERE_MASTER    7
#define CX88_BOARD_WINFAST_DV2000           8
#define CX88_BOARD_LEADTEK_PVR2000          9
#define CX88_BOARD_IODATA_GVVCP3PCI        10
#define CX88_BOARD_PROLINK_PLAYTVPVR       11
#define CX88_BOARD_ASUS_PVR_416            12
#define CX88_BOARD_MSI_TVANYWHERE          13
#define CX88_BOARD_KWORLD_DVB_T            14
#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1 15
#define CX88_BOARD_KWORLD_LTV883           16
#define CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q  17
#define CX88_BOARD_HAUPPAUGE_DVB_T1        18
#define CX88_BOARD_CONEXANT_DVB_T1         19
#define CX88_BOARD_PROVIDEO_PV259          20
#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS 21
#define CX88_BOARD_PCHDTV_HD3000           22
#define CX88_BOARD_DNTV_LIVE_DVB_T         23
#define CX88_BOARD_HAUPPAUGE_ROSLYN        24
#define CX88_BOARD_DIGITALLOGIC_MEC        25
#define CX88_BOARD_IODATA_GVBCTV7E         26
#define CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO 27
#define CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T  28
#define CX88_BOARD_ADSTECH_DVB_T_PCI          29
#define CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1  30
#define CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD 31
#define CX88_BOARD_AVERMEDIA_ULTRATV_MC_550 32
#define CX88_BOARD_KWORLD_VSTREAM_EXPERT_DVD 33
#define CX88_BOARD_ATI_HDTVWONDER          34
#define CX88_BOARD_WINFAST_DTV1000         35
#define CX88_BOARD_AVERTV_303              36
#define CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1  37
#define CX88_BOARD_HAUPPAUGE_NOVASE2_S1    38
#define CX88_BOARD_KWORLD_DVBS_100         39
#define CX88_BOARD_HAUPPAUGE_HVR1100       40
#define CX88_BOARD_HAUPPAUGE_HVR1100LP     41
#define CX88_BOARD_DNTV_LIVE_DVB_T_PRO     42
#define CX88_BOARD_KWORLD_DVB_T_CX22702    43
#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL 44
#define CX88_BOARD_KWORLD_HARDWARE_MPEG_TV_XPERT 45
#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_HYBRID 46
#define CX88_BOARD_PCHDTV_HD5500           47
#define CX88_BOARD_KWORLD_MCE200_DELUXE    48
#define CX88_BOARD_PIXELVIEW_PLAYTV_P7000  49
#define CX88_BOARD_NPGTECH_REALTV_TOP10FM  50
#define CX88_BOARD_WINFAST_DTV2000H        51
#define CX88_BOARD_GENIATECH_DVBS          52
#define CX88_BOARD_HAUPPAUGE_HVR3000       53
#define CX88_BOARD_NORWOOD_MICRO           54
#define CX88_BOARD_TE_DTV_250_OEM_SWANN    55
#define CX88_BOARD_HAUPPAUGE_HVR1300       56
#define CX88_BOARD_ADSTECH_PTV_390         57
#define CX88_BOARD_PINNACLE_PCTV_HD_800i   58
#define CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO 59
#define CX88_BOARD_PINNACLE_HYBRID_PCTV    60
#define CX88_BOARD_WINFAST_TV2000_XP_GLOBAL 61
#define CX88_BOARD_POWERCOLOR_REAL_ANGEL   62
#define CX88_BOARD_GENIATECH_X8000_MT      63
#define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PRO 64
#define CX88_BOARD_DVICO_FUSIONHDTV_7_GOLD 65
#define CX88_BOARD_PROLINK_PV_8000GT       66
#define CX88_BOARD_KWORLD_ATSC_120         67
#define CX88_BOARD_HAUPPAUGE_HVR4000       68
#define CX88_BOARD_HAUPPAUGE_HVR4000LITE   69
#define CX88_BOARD_TEVII_S460              70
#define CX88_BOARD_OMICOM_SS4_PCI          71
#define CX88_BOARD_TBS_8920                72
#define CX88_BOARD_TEVII_S420              73
#define CX88_BOARD_PROLINK_PV_GLOBAL_XTREME 74
#define CX88_BOARD_PROF_7300               75
#define CX88_BOARD_SATTRADE_ST4200         76
#define CX88_BOARD_TBS_8910                77
#define CX88_BOARD_PROF_6200               78
#define CX88_BOARD_TERRATEC_CINERGY_HT_PCI_MKII 79
#define CX88_BOARD_HAUPPAUGE_IRONLY        80
#define CX88_BOARD_WINFAST_DTV1800H        81
#define CX88_BOARD_WINFAST_DTV2000H_J      82
#define CX88_BOARD_PROF_7301               83
#define CX88_BOARD_SAMSUNG_SMT_7020        84
#define CX88_BOARD_TWINHAN_VP1027_DVBS     85
#define CX88_BOARD_TEVII_S464              86
#define CX88_BOARD_WINFAST_DTV2000H_PLUS   87
#define CX88_BOARD_WINFAST_DTV1800H_XC4000 88
#define CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36 89
#define CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43 90

enum cx88_itype {
	CX88_VMUX_COMPOSITE1 = 1,
	CX88_VMUX_COMPOSITE2,
	CX88_VMUX_COMPOSITE3,
	CX88_VMUX_COMPOSITE4,
	CX88_VMUX_SVIDEO,
	CX88_VMUX_TELEVISION,
	CX88_VMUX_CABLE,
	CX88_VMUX_DVB,
	CX88_VMUX_DEBUG,
	CX88_RADIO,
};

struct cx88_input {
	enum cx88_itype type;
	u32             gpio0, gpio1, gpio2, gpio3;
	unsigned int    vmux:2;
	unsigned int    audioroute:4;
};

enum cx88_audio_chip {
	CX88_AUDIO_WM8775 = 1,
	CX88_AUDIO_TVAUDIO,
};

struct cx88_board {
	const char              *name;
	unsigned int            tuner_type;
	unsigned int		radio_type;
	unsigned char		tuner_addr;
	unsigned char		radio_addr;
	int                     tda9887_conf;
	struct cx88_input       input[MAX_CX88_INPUT];
	struct cx88_input       radio;
	enum cx88_board_type    mpeg;
	enum cx88_audio_chip	audio_chip;
	int			num_frontends;

	/* Used for I2S devices */
	int			i2sinputcntl;
};

struct cx88_subid {
	u16     subvendor;
	u16     subdevice;
	u32     card;
};

enum cx88_tvaudio {
	WW_NONE = 1,
	WW_BTSC,
	WW_BG,
	WW_DK,
	WW_I,
	WW_L,
	WW_EIAJ,
	WW_I2SPT,
	WW_FM,
	WW_I2SADC,
	WW_M
};

#define INPUT(nr) (core->board.input[nr])

/* ----------------------------------------------------------- */
/* device / file handle status                                 */

#define RESOURCE_OVERLAY       1
#define RESOURCE_VIDEO         2
#define RESOURCE_VBI           4

#define BUFFER_TIMEOUT     msecs_to_jiffies(2000)

/* buffer for one video frame */
struct cx88_buffer {
	/* common v4l buffer stuff -- must be first */
	struct videobuf_buffer vb;

	/* cx88 specific */
	unsigned int           bpl;
	struct btcx_riscmem    risc;
	const struct cx8800_fmt *fmt;
	u32                    count;
};

struct cx88_dmaqueue {
	struct list_head       active;
	struct list_head       queued;
	struct timer_list      timeout;
	struct btcx_riscmem    stopper;
	u32                    count;
};

struct cx88_core {
	struct list_head           devlist;
	atomic_t                   refcount;

	/* board name */
	int                        nr;
	char                       name[32];
	u32			   model;

	/* pci stuff */
	int                        pci_bus;
	int                        pci_slot;
	u32                        __iomem *lmmio;
	u8                         __iomem *bmmio;
	u32                        shadow[SHADOW_MAX];
	int                        pci_irqmask;

	/* i2c i/o */
	struct i2c_adapter         i2c_adap;
	struct i2c_algo_bit_data   i2c_algo;
	struct i2c_client          i2c_client;
	u32                        i2c_state, i2c_rc;

	/* config info -- analog */
	struct v4l2_device 	   v4l2_dev;
	struct v4l2_ctrl_handler   video_hdl;
	struct v4l2_ctrl	   *chroma_agc;
	struct v4l2_ctrl_handler   audio_hdl;
	struct v4l2_subdev	   *sd_wm8775;
	struct i2c_client 	   *i2c_rtc;
	unsigned int               boardnr;
	struct cx88_board	   board;

	/* Supported V4L _STD_ tuner formats */
	unsigned int               tuner_formats;

	/* config info -- dvb */
#if IS_ENABLED(CONFIG_VIDEO_CX88_DVB)
	int 			   (*prev_set_voltage)(struct dvb_frontend *fe, fe_sec_voltage_t voltage);
#endif
	void			   (*gate_ctrl)(struct cx88_core  *core, int open);

	/* state info */
	struct task_struct         *kthread;
	v4l2_std_id                tvnorm;
	enum cx88_tvaudio          tvaudio;
	u32                        audiomode_manual;
	u32                        audiomode_current;
	u32                        input;
	u32                        last_analog_input;
	u32                        astat;
	u32			   use_nicam;
	unsigned long		   last_change;

	/* IR remote control state */
	struct cx88_IR             *ir;

	/* I2C remote data */
	struct IR_i2c_init_data    init_data;
	struct wm8775_platform_data wm8775_data;

	struct mutex               lock;
	/* various v4l controls */
	u32                        freq;
	int                        users;
	int                        mpeg_users;

	/* cx88-video needs to access cx8802 for hybrid tuner pll access. */
	struct cx8802_dev          *dvbdev;
	enum cx88_board_type       active_type_id;
	int			   active_ref;
	int			   active_fe_id;
};

static inline struct cx88_core *to_core(struct v4l2_device *v4l2_dev)
{
	return container_of(v4l2_dev, struct cx88_core, v4l2_dev);
}

#define call_hw(core, grpid, o, f, args...) \
	do {							\
		if (!core->i2c_rc) {				\
			if (core->gate_ctrl)			\
				core->gate_ctrl(core, 1);	\
			v4l2_device_call_all(&core->v4l2_dev, grpid, o, f, ##args); \
			if (core->gate_ctrl)			\
				core->gate_ctrl(core, 0);	\
		}						\
	} while (0)

#define call_all(core, o, f, args...) call_hw(core, 0, o, f, ##args)

#define WM8775_GID      (1 << 0)

#define wm8775_s_ctrl(core, id, val) \
	do {									\
		struct v4l2_ctrl *ctrl_ =					\
			v4l2_ctrl_find(core->sd_wm8775->ctrl_handler, id);	\
		if (ctrl_ && !core->i2c_rc) {					\
			if (core->gate_ctrl)					\
				core->gate_ctrl(core, 1);			\
			v4l2_ctrl_s_ctrl(ctrl_, val);				\
			if (core->gate_ctrl)					\
				core->gate_ctrl(core, 0);			\
		}								\
	} while (0)

#define wm8775_g_ctrl(core, id) \
	({									\
		struct v4l2_ctrl *ctrl_ =					\
			v4l2_ctrl_find(core->sd_wm8775->ctrl_handler, id);	\
		s32 val = 0;							\
		if (ctrl_ && !core->i2c_rc) {					\
			if (core->gate_ctrl)					\
				core->gate_ctrl(core, 1);			\
			val = v4l2_ctrl_g_ctrl(ctrl_);				\
			if (core->gate_ctrl)					\
				core->gate_ctrl(core, 0);			\
		}								\
		val;								\
	})

struct cx8800_dev;
struct cx8802_dev;

/* ----------------------------------------------------------- */
/* function 0: video stuff                                     */

struct cx8800_fh {
	struct v4l2_fh		   fh;
	struct cx8800_dev          *dev;
	unsigned int               resources;

	/* video capture */
	struct videobuf_queue      vidq;

	/* vbi capture */
	struct videobuf_queue      vbiq;
};

struct cx8800_suspend_state {
	int                        disabled;
};

struct cx8800_dev {
	struct cx88_core           *core;
	spinlock_t                 slock;

	/* various device info */
	unsigned int               resources;
	struct video_device        *video_dev;
	struct video_device        *vbi_dev;
	struct video_device        *radio_dev;

	/* pci i/o */
	struct pci_dev             *pci;
	unsigned char              pci_rev,pci_lat;

	const struct cx8800_fmt    *fmt;
	unsigned int               width, height;

	/* capture queues */
	struct cx88_dmaqueue       vidq;
	struct cx88_dmaqueue       vbiq;

	/* various v4l controls */

	/* other global state info */
	struct cx8800_suspend_state state;
};

/* ----------------------------------------------------------- */
/* function 1: audio/alsa stuff                                */
/* =============> moved to cx88-alsa.c <====================== */


/* ----------------------------------------------------------- */
/* function 2: mpeg stuff                                      */

struct cx8802_fh {
	struct v4l2_fh		   fh;
	struct cx8802_dev          *dev;
	struct videobuf_queue      mpegq;
};

struct cx8802_suspend_state {
	int                        disabled;
};

struct cx8802_driver {
	struct cx88_core *core;

	/* List of drivers attached to device */
	struct list_head drvlist;

	/* Type of driver and access required */
	enum cx88_board_type type_id;
	enum cx8802_board_access hw_access;

	/* MPEG 8802 internal only */
	int (*suspend)(struct pci_dev *pci_dev, pm_message_t state);
	int (*resume)(struct pci_dev *pci_dev);

	/* Callers to the following functions must hold core->lock */

	/* MPEG 8802 -> mini driver - Driver probe and configuration */
	int (*probe)(struct cx8802_driver *drv);
	int (*remove)(struct cx8802_driver *drv);

	/* MPEG 8802 -> mini driver - Access for hardware control */
	int (*advise_acquire)(struct cx8802_driver *drv);
	int (*advise_release)(struct cx8802_driver *drv);

	/* MPEG 8802 <- mini driver - Access for hardware control */
	int (*request_acquire)(struct cx8802_driver *drv);
	int (*request_release)(struct cx8802_driver *drv);
};

struct cx8802_dev {
	struct cx88_core           *core;
	spinlock_t                 slock;

	/* pci i/o */
	struct pci_dev             *pci;
	unsigned char              pci_rev,pci_lat;

	/* dma queues */
	struct cx88_dmaqueue       mpegq;
	u32                        ts_packet_size;
	u32                        ts_packet_count;

	/* other global state info */
	struct cx8802_suspend_state state;

	/* for blackbird only */
	struct list_head           devlist;
#if IS_ENABLED(CONFIG_VIDEO_CX88_BLACKBIRD)
	struct video_device        *mpeg_dev;
	u32                        mailbox;
	int                        width;
	int                        height;
	unsigned char              mpeg_active; /* nonzero if mpeg encoder is active */

	/* mpeg params */
	struct cx2341x_handler     cxhdl;
#endif

#if IS_ENABLED(CONFIG_VIDEO_CX88_DVB)
	/* for dvb only */
	struct videobuf_dvb_frontends frontends;
#endif

#if IS_ENABLED(CONFIG_VIDEO_CX88_VP3054)
	/* For VP3045 secondary I2C bus support */
	struct vp3054_i2c_state	   *vp3054;
#endif
	/* for switching modulation types */
	unsigned char              ts_gen_cntrl;

	/* List of attached drivers; must hold core->lock to access */
	struct list_head	   drvlist;

	struct work_struct	   request_module_wk;
};

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

#define cx_read(reg)             readl(core->lmmio + ((reg)>>2))
#define cx_write(reg,value)      writel((value), core->lmmio + ((reg)>>2))
#define cx_writeb(reg,value)     writeb((value), core->bmmio + (reg))

#define cx_andor(reg,mask,value) \
  writel((readl(core->lmmio+((reg)>>2)) & ~(mask)) |\
  ((value) & (mask)), core->lmmio+((reg)>>2))
#define cx_set(reg,bit)          cx_andor((reg),(bit),(bit))
#define cx_clear(reg,bit)        cx_andor((reg),(bit),0)

#define cx_wait(d) { if (need_resched()) schedule(); else udelay(d); }

/* shadow registers */
#define cx_sread(sreg)		    (core->shadow[sreg])
#define cx_swrite(sreg,reg,value) \
  (core->shadow[sreg] = value, \
   writel(core->shadow[sreg], core->lmmio + ((reg)>>2)))
#define cx_sandor(sreg,reg,mask,value) \
  (core->shadow[sreg] = (core->shadow[sreg] & ~(mask)) | ((value) & (mask)), \
   writel(core->shadow[sreg], core->lmmio + ((reg)>>2)))

/* ----------------------------------------------------------- */
/* cx88-core.c                                                 */

extern unsigned int cx88_core_debug;

extern void cx88_print_irqbits(const char *name, const char *tag, const char *strings[],
			       int len, u32 bits, u32 mask);

extern int cx88_core_irq(struct cx88_core *core, u32 status);
extern void cx88_wakeup(struct cx88_core *core,
			struct cx88_dmaqueue *q, u32 count);
extern void cx88_shutdown(struct cx88_core *core);
extern int cx88_reset(struct cx88_core *core);

extern int
cx88_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
		 struct scatterlist *sglist,
		 unsigned int top_offset, unsigned int bottom_offset,
		 unsigned int bpl, unsigned int padding, unsigned int lines);
extern int
cx88_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
		     struct scatterlist *sglist, unsigned int bpl,
		     unsigned int lines, unsigned int lpi);
extern int
cx88_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
		  u32 reg, u32 mask, u32 value);
extern void
cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf);

extern void cx88_risc_disasm(struct cx88_core *core,
			     struct btcx_riscmem *risc);
extern int cx88_sram_channel_setup(struct cx88_core *core,
				   const struct sram_channel *ch,
				   unsigned int bpl, u32 risc);
extern void cx88_sram_channel_dump(struct cx88_core *core,
				   const struct sram_channel *ch);

extern int cx88_set_scale(struct cx88_core *core, unsigned int width,
			  unsigned int height, enum v4l2_field field);
extern int cx88_set_tvnorm(struct cx88_core *core, v4l2_std_id norm);

extern struct video_device *cx88_vdev_init(struct cx88_core *core,
					   struct pci_dev *pci,
					   const struct video_device *template_,
					   const char *type);
extern struct cx88_core* cx88_core_get(struct pci_dev *pci);
extern void cx88_core_put(struct cx88_core *core,
			  struct pci_dev *pci);

extern int cx88_start_audio_dma(struct cx88_core *core);
extern int cx88_stop_audio_dma(struct cx88_core *core);


/* ----------------------------------------------------------- */
/* cx88-vbi.c                                                  */

/* Can be used as g_vbi_fmt, try_vbi_fmt and s_vbi_fmt */
int cx8800_vbi_fmt (struct file *file, void *priv,
					struct v4l2_format *f);

/*
int cx8800_start_vbi_dma(struct cx8800_dev    *dev,
			 struct cx88_dmaqueue *q,
			 struct cx88_buffer   *buf);
*/
int cx8800_stop_vbi_dma(struct cx8800_dev *dev);
int cx8800_restart_vbi_queue(struct cx8800_dev    *dev,
			     struct cx88_dmaqueue *q);
void cx8800_vbi_timeout(unsigned long data);

extern const struct videobuf_queue_ops cx8800_vbi_qops;

/* ----------------------------------------------------------- */
/* cx88-i2c.c                                                  */

extern int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci);


/* ----------------------------------------------------------- */
/* cx88-cards.c                                                */

extern int cx88_tuner_callback(void *dev, int component, int command, int arg);
extern int cx88_get_resources(const struct cx88_core *core,
			      struct pci_dev *pci);
extern struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr);
extern void cx88_setup_xc3028(struct cx88_core *core, struct xc2028_ctrl *ctl);

/* ----------------------------------------------------------- */
/* cx88-tvaudio.c                                              */

void cx88_set_tvaudio(struct cx88_core *core);
void cx88_newstation(struct cx88_core *core);
void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t);
void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual);
int cx88_audio_thread(void *data);

int cx8802_register_driver(struct cx8802_driver *drv);
int cx8802_unregister_driver(struct cx8802_driver *drv);

/* Caller must hold core->lock */
struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype);

/* ----------------------------------------------------------- */
/* cx88-dsp.c                                                  */

s32 cx88_dsp_detect_stereo_sap(struct cx88_core *core);

/* ----------------------------------------------------------- */
/* cx88-input.c                                                */

int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci);
int cx88_ir_fini(struct cx88_core *core);
void cx88_ir_irq(struct cx88_core *core);
int cx88_ir_start(struct cx88_core *core);
void cx88_ir_stop(struct cx88_core *core);
extern void cx88_i2c_init_ir(struct cx88_core *core);

/* ----------------------------------------------------------- */
/* cx88-mpeg.c                                                 */

int cx8802_buf_prepare(struct videobuf_queue *q,struct cx8802_dev *dev,
			struct cx88_buffer *buf, enum v4l2_field field);
void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf);
void cx8802_cancel_buffers(struct cx8802_dev *dev);

/* ----------------------------------------------------------- */
/* cx88-video.c*/
int cx88_enum_input (struct cx88_core  *core,struct v4l2_input *i);
int cx88_set_freq(struct cx88_core  *core, const struct v4l2_frequency *f);
int cx88_video_mux(struct cx88_core *core, unsigned int input);
void cx88_querycap(struct file *file, struct cx88_core *core,
		struct v4l2_capability *cap);