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[media] v4l2-ctrls: add a notify callback
[mirror_ubuntu-artful-kernel.git] / drivers / media / usb / em28xx / em28xx.h
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1/*
2 em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
3
4 Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
5 Ludovico Cavedon <cavedon@sssup.it>
6 Mauro Carvalho Chehab <mchehab@infradead.org>
7 Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
8
9 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
10
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 */
25
26#ifndef _EM28XX_H
27#define _EM28XX_H
28
29#include <linux/workqueue.h>
30#include <linux/i2c.h>
31#include <linux/mutex.h>
32#include <linux/videodev2.h>
33
34#include <media/videobuf-vmalloc.h>
35#include <media/v4l2-device.h>
36#include <media/ir-kbd-i2c.h>
37#include <media/rc-core.h>
38#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
39#include <media/videobuf-dvb.h>
40#endif
41#include "tuner-xc2028.h"
42#include "xc5000.h"
43#include "em28xx-reg.h"
44
45/* Boards supported by driver */
46#define EM2800_BOARD_UNKNOWN 0
47#define EM2820_BOARD_UNKNOWN 1
48#define EM2820_BOARD_TERRATEC_CINERGY_250 2
49#define EM2820_BOARD_PINNACLE_USB_2 3
50#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
51#define EM2820_BOARD_MSI_VOX_USB_2 5
52#define EM2800_BOARD_TERRATEC_CINERGY_200 6
53#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
54#define EM2800_BOARD_KWORLD_USB2800 8
55#define EM2820_BOARD_PINNACLE_DVC_90 9
56#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
57#define EM2880_BOARD_TERRATEC_HYBRID_XS 11
58#define EM2820_BOARD_KWORLD_PVRTV2800RF 12
59#define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
60#define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
61#define EM2800_BOARD_VGEAR_POCKETTV 15
62#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16
63#define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17
64#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
65#define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19
66#define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
67#define EM2800_BOARD_GRABBEEX_USB2800 21
68#define EM2750_BOARD_UNKNOWN 22
69#define EM2750_BOARD_DLCW_130 23
70#define EM2820_BOARD_DLINK_USB_TV 24
71#define EM2820_BOARD_GADMEI_UTV310 25
72#define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
73#define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
74#define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
75#define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29
76#define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
77#define EM2821_BOARD_USBGEAR_VD204 31
78#define EM2821_BOARD_SUPERCOMP_USB_2 32
79#define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33
80#define EM2860_BOARD_TERRATEC_HYBRID_XS 34
81#define EM2860_BOARD_TYPHOON_DVD_MAKER 35
82#define EM2860_BOARD_NETGMBH_CAM 36
83#define EM2860_BOARD_GADMEI_UTV330 37
84#define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
85#define EM2861_BOARD_KWORLD_PVRTV_300U 39
86#define EM2861_BOARD_PLEXTOR_PX_TV100U 40
87#define EM2870_BOARD_KWORLD_350U 41
88#define EM2870_BOARD_KWORLD_355U 42
89#define EM2870_BOARD_TERRATEC_XS 43
90#define EM2870_BOARD_TERRATEC_XS_MT2060 44
91#define EM2870_BOARD_PINNACLE_PCTV_DVB 45
92#define EM2870_BOARD_COMPRO_VIDEOMATE 46
93#define EM2880_BOARD_KWORLD_DVB_305U 47
94#define EM2880_BOARD_KWORLD_DVB_310U 48
95#define EM2880_BOARD_MSI_DIGIVOX_AD 49
96#define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
97#define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
98#define EM2881_BOARD_DNT_DA2_HYBRID 52
99#define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
100#define EM2882_BOARD_KWORLD_VS_DVBT 54
101#define EM2882_BOARD_TERRATEC_HYBRID_XS 55
102#define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56
103#define EM2883_BOARD_KWORLD_HYBRID_330U 57
104#define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
105#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60
106#define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61
107#define EM2820_BOARD_GADMEI_TVR200 62
108#define EM2860_BOARD_KAIOMY_TVNPC_U2 63
109#define EM2860_BOARD_EASYCAP 64
110#define EM2820_BOARD_IODATA_GVMVP_SZ 65
111#define EM2880_BOARD_EMPIRE_DUAL_TV 66
112#define EM2860_BOARD_TERRATEC_GRABBY 67
113#define EM2860_BOARD_TERRATEC_AV350 68
114#define EM2882_BOARD_KWORLD_ATSC_315U 69
115#define EM2882_BOARD_EVGA_INDTUBE 70
116#define EM2820_BOARD_SILVERCREST_WEBCAM 71
117#define EM2861_BOARD_GADMEI_UTV330PLUS 72
118#define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73
119#define EM2800_BOARD_VC211A 74
120#define EM2882_BOARD_DIKOM_DK300 75
121#define EM2870_BOARD_KWORLD_A340 76
122#define EM2874_BOARD_LEADERSHIP_ISDBT 77
123#define EM28174_BOARD_PCTV_290E 78
124#define EM2884_BOARD_TERRATEC_H5 79
125#define EM28174_BOARD_PCTV_460E 80
126#define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81
127#define EM2884_BOARD_CINERGY_HTC_STICK 82
128#define EM2860_BOARD_HT_VIDBOX_NW03 83
129#define EM2874_BOARD_MAXMEDIA_UB425_TC 84
130#define EM2884_BOARD_PCTV_510E 85
131#define EM2884_BOARD_PCTV_520E 86
132#define EM2884_BOARD_TERRATEC_HTC_USB_XS 87
133
134/* Limits minimum and default number of buffers */
135#define EM28XX_MIN_BUF 4
136#define EM28XX_DEF_BUF 8
137
138/*Limits the max URB message size */
139#define URB_MAX_CTRL_SIZE 80
140
141/* Params for validated field */
142#define EM28XX_BOARD_NOT_VALIDATED 1
143#define EM28XX_BOARD_VALIDATED 0
144
145/* Params for em28xx_cmd() audio */
146#define EM28XX_START_AUDIO 1
147#define EM28XX_STOP_AUDIO 0
148
149/* maximum number of em28xx boards */
150#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
151
152/* maximum number of frames that can be queued */
153#define EM28XX_NUM_FRAMES 5
154/* number of frames that get used for v4l2_read() */
155#define EM28XX_NUM_READ_FRAMES 2
156
157/* number of buffers for isoc transfers */
158#define EM28XX_NUM_BUFS 5
159#define EM28XX_DVB_NUM_BUFS 5
160
161/* isoc transfers: number of packets for each buffer
162 windows requests only 64 packets .. so we better do the same
163 this is what I found out for all alternate numbers there!
164 */
165#define EM28XX_NUM_ISOC_PACKETS 64
166#define EM28XX_DVB_NUM_ISOC_PACKETS 64
167
168/* bulk transfers: transfer buffer size = packet size * packet multiplier
169 USB 2.0 spec says bulk packet size is always 512 bytes
170 */
171#define EM28XX_BULK_PACKET_MULTIPLIER 384
172#define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384
173
174#define EM28XX_INTERLACED_DEFAULT 1
175
176/*
177#define (use usbview if you want to get the other alternate number infos)
178#define
179#define alternate number 2
180#define Endpoint Address: 82
181 Direction: in
182 Attribute: 1
183 Type: Isoc
184 Max Packet Size: 1448
185 Interval: 125us
186
187 alternate number 7
188
189 Endpoint Address: 82
190 Direction: in
191 Attribute: 1
192 Type: Isoc
193 Max Packet Size: 3072
194 Interval: 125us
195*/
196
197/* time in msecs to wait for i2c writes to finish */
198#define EM2800_I2C_WRITE_TIMEOUT 20
199
200enum em28xx_mode {
201 EM28XX_SUSPEND,
202 EM28XX_ANALOG_MODE,
203 EM28XX_DIGITAL_MODE,
204};
205
206
207struct em28xx;
208
209struct em28xx_usb_bufs {
210 /* max packet size of isoc transaction */
211 int max_pkt_size;
212
213 /* number of packets in each buffer */
214 int num_packets;
215
216 /* number of allocated urbs */
217 int num_bufs;
218
219 /* urb for isoc/bulk transfers */
220 struct urb **urb;
221
222 /* transfer buffers for isoc/bulk transfer */
223 char **transfer_buffer;
224};
225
226struct em28xx_usb_ctl {
227 /* isoc/bulk transfer buffers for analog mode */
228 struct em28xx_usb_bufs analog_bufs;
229
230 /* isoc/bulk transfer buffers for digital mode */
231 struct em28xx_usb_bufs digital_bufs;
232
233 /* Stores already requested buffers */
234 struct em28xx_buffer *vid_buf;
235 struct em28xx_buffer *vbi_buf;
236
237 /* copy data from URB */
238 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb);
239
240};
241
242/* Struct to enumberate video formats */
243struct em28xx_fmt {
244 char *name;
245 u32 fourcc; /* v4l2 format id */
246 int depth;
247 int reg;
248};
249
250/* buffer for one video frame */
251struct em28xx_buffer {
252 /* common v4l buffer stuff -- must be first */
253 struct videobuf_buffer vb;
254
255 int top_field;
256
257 /* counter to control buffer fill */
258 unsigned int pos;
259 /* NOTE; in interlaced mode, this value is reset to zero at
260 * the start of each new field (not frame !) */
261
262 /* pointer to vmalloc memory address in vb */
263 char *vb_buf;
264};
265
266struct em28xx_dmaqueue {
267 struct list_head active;
268
269 wait_queue_head_t wq;
270};
271
272/* inputs */
273
274#define MAX_EM28XX_INPUT 4
275enum enum28xx_itype {
276 EM28XX_VMUX_COMPOSITE1 = 1,
277 EM28XX_VMUX_COMPOSITE2,
278 EM28XX_VMUX_COMPOSITE3,
279 EM28XX_VMUX_COMPOSITE4,
280 EM28XX_VMUX_SVIDEO,
281 EM28XX_VMUX_TELEVISION,
282 EM28XX_VMUX_CABLE,
283 EM28XX_VMUX_DVB,
284 EM28XX_VMUX_DEBUG,
285 EM28XX_RADIO,
286};
287
288enum em28xx_ac97_mode {
289 EM28XX_NO_AC97 = 0,
290 EM28XX_AC97_EM202,
291 EM28XX_AC97_SIGMATEL,
292 EM28XX_AC97_OTHER,
293};
294
295struct em28xx_audio_mode {
296 enum em28xx_ac97_mode ac97;
297
298 u16 ac97_feat;
299 u32 ac97_vendor_id;
300
301 unsigned int has_audio:1;
302
303 unsigned int i2s_3rates:1;
304 unsigned int i2s_5rates:1;
305};
306
307/* em28xx has two audio inputs: tuner and line in.
308 However, on most devices, an auxiliary AC97 codec device is used.
309 The AC97 device may have several different inputs and outputs,
310 depending on their model. So, it is possible to use AC97 mixer to
311 address more than two different entries.
312 */
313enum em28xx_amux {
314 /* This is the only entry for em28xx tuner input */
315 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */
316
317 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */
318
319 /* Some less-common mixer setups */
320 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */
321 EM28XX_AMUX_PHONE,
322 EM28XX_AMUX_MIC,
323 EM28XX_AMUX_CD,
324 EM28XX_AMUX_AUX,
325 EM28XX_AMUX_PCM_OUT,
326};
327
328enum em28xx_aout {
329 /* AC97 outputs */
330 EM28XX_AOUT_MASTER = 1 << 0,
331 EM28XX_AOUT_LINE = 1 << 1,
332 EM28XX_AOUT_MONO = 1 << 2,
333 EM28XX_AOUT_LFE = 1 << 3,
334 EM28XX_AOUT_SURR = 1 << 4,
335
336 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
337 EM28XX_AOUT_PCM_IN = 1 << 7,
338
339 /* Bits 10-8 are used to indicate the PCM IN record select */
340 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
341 EM28XX_AOUT_PCM_CD = 1 << 8,
342 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
343 EM28XX_AOUT_PCM_AUX = 3 << 8,
344 EM28XX_AOUT_PCM_LINE = 4 << 8,
345 EM28XX_AOUT_PCM_STEREO = 5 << 8,
346 EM28XX_AOUT_PCM_MONO = 6 << 8,
347 EM28XX_AOUT_PCM_PHONE = 7 << 8,
348};
349
350static inline int ac97_return_record_select(int a_out)
351{
352 return (a_out & 0x700) >> 8;
353}
354
355struct em28xx_reg_seq {
356 int reg;
357 unsigned char val, mask;
358 int sleep;
359};
360
361struct em28xx_input {
362 enum enum28xx_itype type;
363 unsigned int vmux;
364 enum em28xx_amux amux;
365 enum em28xx_aout aout;
366 struct em28xx_reg_seq *gpio;
367};
368
369#define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
370
371enum em28xx_decoder {
372 EM28XX_NODECODER = 0,
373 EM28XX_TVP5150,
374 EM28XX_SAA711X,
375};
376
377enum em28xx_sensor {
378 EM28XX_NOSENSOR = 0,
379 EM28XX_MT9V011,
380 EM28XX_MT9M001,
381 EM28XX_MT9M111,
382};
383
384enum em28xx_adecoder {
385 EM28XX_NOADECODER = 0,
386 EM28XX_TVAUDIO,
387};
388
389struct em28xx_board {
390 char *name;
391 int vchannels;
392 int tuner_type;
393 int tuner_addr;
394
395 /* i2c flags */
396 unsigned int tda9887_conf;
397
398 /* GPIO sequences */
399 struct em28xx_reg_seq *dvb_gpio;
400 struct em28xx_reg_seq *suspend_gpio;
401 struct em28xx_reg_seq *tuner_gpio;
402 struct em28xx_reg_seq *mute_gpio;
403
404 unsigned int is_em2800:1;
405 unsigned int has_msp34xx:1;
406 unsigned int mts_firmware:1;
407 unsigned int max_range_640_480:1;
408 unsigned int has_dvb:1;
409 unsigned int has_snapshot_button:1;
410 unsigned int is_webcam:1;
411 unsigned int valid:1;
412 unsigned int has_ir_i2c:1;
413
414 unsigned char xclk, i2c_speed;
415 unsigned char radio_addr;
416 unsigned short tvaudio_addr;
417
418 enum em28xx_decoder decoder;
419 enum em28xx_adecoder adecoder;
420
421 struct em28xx_input input[MAX_EM28XX_INPUT];
422 struct em28xx_input radio;
423 char *ir_codes;
424};
425
426struct em28xx_eeprom {
427 u32 id; /* 0x9567eb1a */
428 u16 vendor_ID;
429 u16 product_ID;
430
431 u16 chip_conf;
432
433 u16 board_conf;
434
435 u16 string1, string2, string3;
436
437 u8 string_idx_table;
438};
439
440/* device states */
441enum em28xx_dev_state {
442 DEV_INITIALIZED = 0x01,
443 DEV_DISCONNECTED = 0x02,
444 DEV_MISCONFIGURED = 0x04,
445};
446
447#define EM28XX_AUDIO_BUFS 5
448#define EM28XX_NUM_AUDIO_PACKETS 64
449#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
450#define EM28XX_CAPTURE_STREAM_EN 1
451
452/* em28xx extensions */
453#define EM28XX_AUDIO 0x10
454#define EM28XX_DVB 0x20
455#define EM28XX_RC 0x30
456
457/* em28xx resource types (used for res_get/res_lock etc */
458#define EM28XX_RESOURCE_VIDEO 0x01
459#define EM28XX_RESOURCE_VBI 0x02
460
461struct em28xx_audio {
462 char name[50];
463 char *transfer_buffer[EM28XX_AUDIO_BUFS];
464 struct urb *urb[EM28XX_AUDIO_BUFS];
465 struct usb_device *udev;
466 unsigned int capture_transfer_done;
467 struct snd_pcm_substream *capture_pcm_substream;
468
469 unsigned int hwptr_done_capture;
470 struct snd_card *sndcard;
471
472 int users;
473 spinlock_t slock;
474};
475
476struct em28xx;
477
478struct em28xx_fh {
479 struct em28xx *dev;
480 int radio;
481 unsigned int resources;
482
483 struct videobuf_queue vb_vidq;
484 struct videobuf_queue vb_vbiq;
485
486 enum v4l2_buf_type type;
487};
488
489/* main device struct */
490struct em28xx {
491 /* generic device properties */
492 char name[30]; /* name (including minor) of the device */
493 int model; /* index in the device_data struct */
494 int devno; /* marks the number of this device */
495 enum em28xx_chip_id chip_id;
496
497 int audio_ifnum;
498
499 struct v4l2_device v4l2_dev;
500 struct em28xx_board board;
501
502 /* Webcam specific fields */
503 enum em28xx_sensor em28xx_sensor;
504 int sensor_xres, sensor_yres;
505 int sensor_xtal;
506
507 /* Progressive (non-interlaced) mode */
508 int progressive;
509
510 /* Vinmode/Vinctl used at the driver */
511 int vinmode, vinctl;
512
513 unsigned int has_audio_class:1;
514 unsigned int has_alsa_audio:1;
515 unsigned int is_audio_only:1;
516
517 /* Controls audio streaming */
518 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */
519 atomic_t stream_started; /* stream should be running if true */
520
521 struct em28xx_fmt *format;
522
523 struct em28xx_IR *ir;
524
525 /* Some older em28xx chips needs a waiting time after writing */
526 unsigned int wait_after_write;
527
528 struct list_head devlist;
529
530 u32 i2s_speed; /* I2S speed for audio digital stream */
531
532 struct em28xx_audio_mode audio_mode;
533
534 int tuner_type; /* type of the tuner */
535 int tuner_addr; /* tuner address */
536 int tda9887_conf;
537 /* i2c i/o */
538 struct i2c_adapter i2c_adap;
539 struct i2c_client i2c_client;
540 /* video for linux */
541 int users; /* user count for exclusive use */
542 struct video_device *vdev; /* video for linux device struct */
543 v4l2_std_id norm; /* selected tv norm */
544 int ctl_freq; /* selected frequency */
545 unsigned int ctl_input; /* selected input */
546 unsigned int ctl_ainput;/* selected audio input */
547 unsigned int ctl_aoutput;/* selected audio output */
548 int mute;
549 int volume;
550 /* frame properties */
551 int width; /* current frame width */
552 int height; /* current frame height */
553 unsigned hscale; /* horizontal scale factor (see datasheet) */
554 unsigned vscale; /* vertical scale factor (see datasheet) */
555 int interlaced; /* 1=interlace fileds, 0=just top fileds */
556 unsigned int video_bytesread; /* Number of bytes read */
557
558 unsigned long hash; /* eeprom hash - for boards with generic ID */
559 unsigned long i2c_hash; /* i2c devicelist hash -
560 for boards with generic ID */
561
562 struct em28xx_audio adev;
563
564 /* states */
565 enum em28xx_dev_state state;
566
567 /* capture state tracking */
568 int capture_type;
569 unsigned char top_field:1;
570 int vbi_read;
571 unsigned int vbi_width;
572 unsigned int vbi_height; /* lines per field */
573
574 struct work_struct request_module_wk;
575
576 /* locks */
577 struct mutex lock;
578 struct mutex ctrl_urb_lock; /* protects urb_buf */
579 /* spinlock_t queue_lock; */
580 struct list_head inqueue, outqueue;
581 struct video_device *vbi_dev;
582 struct video_device *radio_dev;
583
584 /* resources in use */
585 unsigned int resources;
586
587 unsigned char eedata[256];
588
589 /* Isoc control struct */
590 struct em28xx_dmaqueue vidq;
591 struct em28xx_dmaqueue vbiq;
592 struct em28xx_usb_ctl usb_ctl;
593 spinlock_t slock;
594
595 /* usb transfer */
596 struct usb_device *udev; /* the usb device */
597 u8 analog_ep_isoc; /* address of isoc endpoint for analog */
598 u8 analog_ep_bulk; /* address of bulk endpoint for analog */
599 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */
600 u8 dvb_ep_bulk; /* address of bulk endpoint for DVC */
601 int alt; /* alternate setting */
602 int max_pkt_size; /* max packet size of the selected ep at alt */
603 int packet_multiplier; /* multiplier for wMaxPacketSize, used for
604 URB buffer size definition */
605 int num_alt; /* number of alternative settings */
606 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */
607 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc
608 transfers for analog */
609 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */
610 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the
611 selected DVB ep at dvb_alt */
612 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc
613 transfers for DVB */
614 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
615
616 /* helper funcs that call usb_control_msg */
617 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
618 char *buf, int len);
619 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
620 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
621 char *buf, int len);
622 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
623 char *buf, int len);
624 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
625
626 enum em28xx_mode mode;
627
628 /* register numbers for GPO/GPIO registers */
629 u16 reg_gpo_num, reg_gpio_num;
630
631 /* Caches GPO and GPIO registers */
632 unsigned char reg_gpo, reg_gpio;
633
634 /* Snapshot button */
635 char snapshot_button_path[30]; /* path of the input dev */
636 struct input_dev *sbutton_input_dev;
637 struct delayed_work sbutton_query_work;
638
639 struct em28xx_dvb *dvb;
640
641 /* I2C keyboard data */
642 struct IR_i2c_init_data init_data;
643};
644
645struct em28xx_ops {
646 struct list_head next;
647 char *name;
648 int id;
649 int (*init)(struct em28xx *);
650 int (*fini)(struct em28xx *);
651};
652
653/* Provided by em28xx-i2c.c */
654void em28xx_do_i2c_scan(struct em28xx *dev);
655int em28xx_i2c_register(struct em28xx *dev);
656int em28xx_i2c_unregister(struct em28xx *dev);
657
658/* Provided by em28xx-core.c */
659
660u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
661void em28xx_queue_unusedframes(struct em28xx *dev);
662void em28xx_release_buffers(struct em28xx *dev);
663
664int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
665 char *buf, int len);
666int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
667int em28xx_read_reg(struct em28xx *dev, u16 reg);
668int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
669 int len);
670int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
671int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
672int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
673 u8 bitmask);
674
675int em28xx_read_ac97(struct em28xx *dev, u8 reg);
676int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
677
678int em28xx_audio_analog_set(struct em28xx *dev);
679int em28xx_audio_setup(struct em28xx *dev);
680
681int em28xx_colorlevels_set_default(struct em28xx *dev);
682int em28xx_capture_start(struct em28xx *dev, int start);
683int em28xx_vbi_supported(struct em28xx *dev);
684int em28xx_set_outfmt(struct em28xx *dev);
685int em28xx_resolution_set(struct em28xx *dev);
686int em28xx_set_alternate(struct em28xx *dev);
687int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
688 int num_bufs, int max_pkt_size, int packet_multiplier);
689int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
690 int xfer_bulk,
691 int num_bufs, int max_pkt_size, int packet_multiplier,
692 int (*urb_data_copy)
693 (struct em28xx *dev, struct urb *urb));
694void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
695void em28xx_stop_urbs(struct em28xx *dev);
696int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
697int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
698int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
699void em28xx_wake_i2c(struct em28xx *dev);
700int em28xx_register_extension(struct em28xx_ops *dev);
701void em28xx_unregister_extension(struct em28xx_ops *dev);
702void em28xx_init_extension(struct em28xx *dev);
703void em28xx_close_extension(struct em28xx *dev);
704
705/* Provided by em28xx-video.c */
706int em28xx_register_analog_devices(struct em28xx *dev);
707void em28xx_release_analog_resources(struct em28xx *dev);
708
709/* Provided by em28xx-cards.c */
710extern int em2800_variant_detect(struct usb_device *udev, int model);
711extern struct em28xx_board em28xx_boards[];
712extern struct usb_device_id em28xx_id_table[];
713extern const unsigned int em28xx_bcount;
714int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
715void em28xx_release_resources(struct em28xx *dev);
716
717/* Provided by em28xx-vbi.c */
718extern struct videobuf_queue_ops em28xx_vbi_qops;
719
720/* printk macros */
721
722#define em28xx_err(fmt, arg...) do {\
723 printk(KERN_ERR fmt , ##arg); } while (0)
724
725#define em28xx_errdev(fmt, arg...) do {\
726 printk(KERN_ERR "%s: "fmt,\
727 dev->name , ##arg); } while (0)
728
729#define em28xx_info(fmt, arg...) do {\
730 printk(KERN_INFO "%s: "fmt,\
731 dev->name , ##arg); } while (0)
732#define em28xx_warn(fmt, arg...) do {\
733 printk(KERN_WARNING "%s: "fmt,\
734 dev->name , ##arg); } while (0)
735
736static inline int em28xx_compression_disable(struct em28xx *dev)
737{
738 /* side effect of disabling scaler and mixer */
739 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
740}
741
742static inline int em28xx_contrast_get(struct em28xx *dev)
743{
744 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
745}
746
747static inline int em28xx_brightness_get(struct em28xx *dev)
748{
749 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
750}
751
752static inline int em28xx_saturation_get(struct em28xx *dev)
753{
754 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
755}
756
757static inline int em28xx_u_balance_get(struct em28xx *dev)
758{
759 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
760}
761
762static inline int em28xx_v_balance_get(struct em28xx *dev)
763{
764 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
765}
766
767static inline int em28xx_gamma_get(struct em28xx *dev)
768{
769 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
770}
771
772static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
773{
774 u8 tmp = (u8) val;
775 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
776}
777
778static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
779{
780 u8 tmp = (u8) val;
781 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
782}
783
784static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
785{
786 u8 tmp = (u8) val;
787 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
788}
789
790static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
791{
792 u8 tmp = (u8) val;
793 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
794}
795
796static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
797{
798 u8 tmp = (u8) val;
799 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
800}
801
802static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
803{
804 u8 tmp = (u8) val;
805 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
806}
807
808/*FIXME: maxw should be dependent of alt mode */
809static inline unsigned int norm_maxw(struct em28xx *dev)
810{
811 if (dev->board.is_webcam)
812 return dev->sensor_xres;
813
814 if (dev->board.max_range_640_480)
815 return 640;
816
817 return 720;
818}
819
820static inline unsigned int norm_maxh(struct em28xx *dev)
821{
822 if (dev->board.is_webcam)
823 return dev->sensor_yres;
824
825 if (dev->board.max_range_640_480)
826 return 480;
827
828 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
829}
830#endif
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