1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
4 *
5 * Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
6 * Ludovico Cavedon <cavedon@sssup.it>
7 * Mauro Carvalho Chehab <mchehab@kernel.org>
8 * Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
9 *
10 * Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 */
22
23 #ifndef _EM28XX_H
24 #define _EM28XX_H
25
26 #include <linux/bitfield.h>
27
28 #define EM28XX_VERSION "0.2.2"
29 #define DRIVER_DESC "Empia em28xx device driver"
30
31 #include <linux/workqueue.h>
32 #include <linux/i2c.h>
33 #include <linux/mutex.h>
34 #include <linux/kref.h>
35 #include <linux/videodev2.h>
36
37 #include <media/videobuf2-v4l2.h>
38 #include <media/videobuf2-vmalloc.h>
39 #include <media/v4l2-device.h>
40 #include <media/v4l2-ctrls.h>
41 #include <media/v4l2-fh.h>
42 #include <media/i2c/ir-kbd-i2c.h>
43 #include <media/rc-core.h>
44 #include "tuner-xc2028.h"
45 #include "xc5000.h"
46 #include "em28xx-reg.h"
47
48 /* Boards supported by driver */
49 #define EM2800_BOARD_UNKNOWN 0
50 #define EM2820_BOARD_UNKNOWN 1
51 #define EM2820_BOARD_TERRATEC_CINERGY_250 2
52 #define EM2820_BOARD_PINNACLE_USB_2 3
53 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4
54 #define EM2820_BOARD_MSI_VOX_USB_2 5
55 #define EM2800_BOARD_TERRATEC_CINERGY_200 6
56 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7
57 #define EM2800_BOARD_KWORLD_USB2800 8
58 #define EM2820_BOARD_PINNACLE_DVC_90 9
59 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10
60 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11
61 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12
62 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13
63 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14
64 #define EM2800_BOARD_VGEAR_POCKETTV 15
65 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16
66 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17
67 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
68 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19
69 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
70 #define EM2800_BOARD_GRABBEEX_USB2800 21
71 #define EM2750_BOARD_UNKNOWN 22
72 #define EM2750_BOARD_DLCW_130 23
73 #define EM2820_BOARD_DLINK_USB_TV 24
74 #define EM2820_BOARD_GADMEI_UTV310 25
75 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
76 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
77 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
78 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29
79 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
80 #define EM2821_BOARD_USBGEAR_VD204 31
81 #define EM2821_BOARD_SUPERCOMP_USB_2 32
82 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33
83 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34
84 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35
85 #define EM2860_BOARD_NETGMBH_CAM 36
86 #define EM2860_BOARD_GADMEI_UTV330 37
87 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
88 #define EM2861_BOARD_KWORLD_PVRTV_300U 39
89 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40
90 #define EM2870_BOARD_KWORLD_350U 41
91 #define EM2870_BOARD_KWORLD_355U 42
92 #define EM2870_BOARD_TERRATEC_XS 43
93 #define EM2870_BOARD_TERRATEC_XS_MT2060 44
94 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45
95 #define EM2870_BOARD_COMPRO_VIDEOMATE 46
96 #define EM2880_BOARD_KWORLD_DVB_305U 47
97 #define EM2880_BOARD_KWORLD_DVB_310U 48
98 #define EM2880_BOARD_MSI_DIGIVOX_AD 49
99 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
100 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
101 #define EM2881_BOARD_DNT_DA2_HYBRID 52
102 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
103 #define EM2882_BOARD_KWORLD_VS_DVBT 54
104 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55
105 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56
106 #define EM2883_BOARD_KWORLD_HYBRID_330U 57
107 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
108 #define EM2874_BOARD_PCTV_HD_MINI_80E 59
109 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60
110 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61
111 #define EM2820_BOARD_GADMEI_TVR200 62
112 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63
113 #define EM2860_BOARD_EASYCAP 64
114 #define EM2820_BOARD_IODATA_GVMVP_SZ 65
115 #define EM2880_BOARD_EMPIRE_DUAL_TV 66
116 #define EM2860_BOARD_TERRATEC_GRABBY 67
117 #define EM2860_BOARD_TERRATEC_AV350 68
118 #define EM2882_BOARD_KWORLD_ATSC_315U 69
119 #define EM2882_BOARD_EVGA_INDTUBE 70
120 #define EM2820_BOARD_SILVERCREST_WEBCAM 71
121 #define EM2861_BOARD_GADMEI_UTV330PLUS 72
122 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73
123 #define EM2800_BOARD_VC211A 74
124 #define EM2882_BOARD_DIKOM_DK300 75
125 #define EM2870_BOARD_KWORLD_A340 76
126 #define EM2874_BOARD_LEADERSHIP_ISDBT 77
127 #define EM28174_BOARD_PCTV_290E 78
128 #define EM2884_BOARD_TERRATEC_H5 79
129 #define EM28174_BOARD_PCTV_460E 80
130 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81
131 #define EM2884_BOARD_CINERGY_HTC_STICK 82
132 #define EM2860_BOARD_HT_VIDBOX_NW03 83
133 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84
134 #define EM2884_BOARD_PCTV_510E 85
135 #define EM2884_BOARD_PCTV_520E 86
136 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87
137 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88
138 #define EM2874_BOARD_DELOCK_61959 89
139 #define EM2874_BOARD_KWORLD_UB435Q_V2 90
140 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91
141 #define EM28178_BOARD_PCTV_461E 92
142 #define EM2874_BOARD_KWORLD_UB435Q_V3 93
143 #define EM28178_BOARD_PCTV_292E 94
144 #define EM2861_BOARD_LEADTEK_VC100 95
145 #define EM28178_BOARD_TERRATEC_T2_STICK_HD 96
146 #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008 97
147 #define EM28178_BOARD_PLEX_PX_BCUD 98
148 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB 99
149 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100
150 #define EM2884_BOARD_TERRATEC_H6 101
151 #define EM2882_BOARD_ZOLID_HYBRID_TV_STICK 102
152 #define EM2861_BOARD_MAGIX_VIDEOWANDLER2 103
153 #define EM28178_BOARD_PCTV_461E_V2 104
154 #define EM2860_BOARD_MYGICA_IGRABBER 105
155
156 /* Limits minimum and default number of buffers */
157 #define EM28XX_MIN_BUF 4
158 #define EM28XX_DEF_BUF 8
159
160 /*Limits the max URB message size */
161 #define URB_MAX_CTRL_SIZE 80
162
163 /* Params for validated field */
164 #define EM28XX_BOARD_NOT_VALIDATED 1
165 #define EM28XX_BOARD_VALIDATED 0
166
167 /* Params for em28xx_cmd() audio */
168 #define EM28XX_START_AUDIO 1
169 #define EM28XX_STOP_AUDIO 0
170
171 /* maximum number of em28xx boards */
172 #define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */
173
174 /* maximum number of frames that can be queued */
175 #define EM28XX_NUM_FRAMES 5
176 /* number of frames that get used for v4l2_read() */
177 #define EM28XX_NUM_READ_FRAMES 2
178
179 /* number of buffers for isoc transfers */
180 #define EM28XX_NUM_BUFS 5
181 #define EM28XX_DVB_NUM_BUFS 5
182
183 /* max number of I2C buses on em28xx devices */
184 #define NUM_I2C_BUSES 2
185
186 /*
187 * isoc transfers: number of packets for each buffer
188 * windows requests only 64 packets .. so we better do the same
189 * this is what I found out for all alternate numbers there!
190 */
191 #define EM28XX_NUM_ISOC_PACKETS 64
192 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
193
194 /*
195 * bulk transfers: transfer buffer size = packet size * packet multiplier
196 * USB 2.0 spec says bulk packet size is always 512 bytes
197 */
198 #define EM28XX_BULK_PACKET_MULTIPLIER 384
199 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94
200
201 #define EM28XX_INTERLACED_DEFAULT 1
202
203 /* time in msecs to wait for AC97 xfers to finish */
204 #define EM28XX_AC97_XFER_TIMEOUT 100
205
206 /* max. number of button state polling addresses */
207 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5
208
209 #define PRIMARY_TS 0
210 #define SECONDARY_TS 1
211
212 enum em28xx_mode {
213 EM28XX_SUSPEND,
214 EM28XX_ANALOG_MODE,
215 EM28XX_DIGITAL_MODE,
216 };
217
218 struct em28xx;
219
220 /**
221 * struct em28xx_usb_bufs - Contains URB-related buffer data
222 *
223 * @max_pkt_size: max packet size of isoc transaction
224 * @num_packets: number of packets in each buffer
225 * @num_bufs: number of allocated urb
226 * @urb: urb for isoc/bulk transfers
227 * @buf: transfer buffers for isoc/bulk transfer
228 */
229 struct em28xx_usb_bufs {
230 int max_pkt_size;
231 int num_packets;
232 int num_bufs;
233 struct urb **urb;
234 char **buf;
235 };
236
237 /**
238 * struct em28xx_usb_ctl - Contains URB-related buffer data
239 *
240 * @analog_bufs: isoc/bulk transfer buffers for analog mode
241 * @digital_bufs: isoc/bulk transfer buffers for digital mode
242 * @vid_buf: Stores already requested video buffers
243 * @vbi_buf: Stores already requested VBI buffers
244 * @urb_data_copy: copy data from URB
245 */
246 struct em28xx_usb_ctl {
247 struct em28xx_usb_bufs analog_bufs;
248 struct em28xx_usb_bufs digital_bufs;
249 struct em28xx_buffer *vid_buf;
250 struct em28xx_buffer *vbi_buf;
251 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb);
252 };
253
254 /**
255 * struct em28xx_fmt - Struct to enumberate video formats
256 *
257 * @fourcc: v4l2 format id
258 * @depth: mean number of bits to represent a pixel
259 * @reg: em28xx register value to set it
260 */
261 struct em28xx_fmt {
262 u32 fourcc;
263 int depth;
264 int reg;
265 };
266
267 /**
268 * struct em28xx_buffer- buffer for storing one video frame
269 *
270 * @vb: common v4l buffer stuff
271 * @list: List to associate it with the other buffers
272 * @mem: pointer to the buffer, as returned by vb2_plane_vaddr()
273 * @length: length of the buffer, as returned by vb2_plane_size()
274 * @top_field: If non-zero, indicate that the buffer is the top field
275 * @pos: Indicate the next position of the buffer to be filled.
276 * @vb_buf: pointer to vmalloc memory address in vb
277 *
278 * .. note::
279 *
280 * in interlaced mode, @pos is reset to zero at the start of each new
281 * field (not frame !)
282 */
283 struct em28xx_buffer {
284 struct vb2_v4l2_buffer vb; /* must be first */
285
286 struct list_head list;
287
288 void *mem;
289 unsigned int length;
290 int top_field;
291
292 unsigned int pos;
293
294 char *vb_buf;
295 };
296
297 struct em28xx_dmaqueue {
298 struct list_head active;
299
300 wait_queue_head_t wq;
301 };
302
303 /* inputs */
304
305 #define MAX_EM28XX_INPUT 4
306 enum enum28xx_itype {
307 EM28XX_VMUX_COMPOSITE = 1,
308 EM28XX_VMUX_SVIDEO,
309 EM28XX_VMUX_TELEVISION,
310 EM28XX_RADIO,
311 };
312
313 enum em28xx_ac97_mode {
314 EM28XX_NO_AC97 = 0,
315 EM28XX_AC97_EM202,
316 EM28XX_AC97_SIGMATEL,
317 EM28XX_AC97_OTHER,
318 };
319
320 struct em28xx_audio_mode {
321 enum em28xx_ac97_mode ac97;
322 };
323
324 enum em28xx_int_audio_type {
325 EM28XX_INT_AUDIO_NONE = 0,
326 EM28XX_INT_AUDIO_AC97,
327 EM28XX_INT_AUDIO_I2S,
328 };
329
330 enum em28xx_usb_audio_type {
331 EM28XX_USB_AUDIO_NONE = 0,
332 EM28XX_USB_AUDIO_CLASS,
333 EM28XX_USB_AUDIO_VENDOR,
334 };
335
336 /**
337 * em28xx_amux - describes the type of audio input used by em28xx
338 *
339 * @EM28XX_AMUX_UNUSED:
340 * Used only on em28xx dev->map field, in order to mark an entry
341 * as unused.
342 * @EM28XX_AMUX_VIDEO:
343 * On devices without AC97, this is the only value that it is currently
344 * allowed.
345 * On devices with AC97, it corresponds to the AC97 mixer "Video" control.
346 * @EM28XX_AMUX_LINE_IN:
347 * Only for devices with AC97. Corresponds to AC97 mixer "Line In".
348 * @EM28XX_AMUX_VIDEO2:
349 * Only for devices with AC97. It means that em28xx should use "Line In"
350 * And AC97 should use the "Video" mixer control.
351 * @EM28XX_AMUX_PHONE:
352 * Only for devices with AC97. Corresponds to AC97 mixer "Phone".
353 * @EM28XX_AMUX_MIC:
354 * Only for devices with AC97. Corresponds to AC97 mixer "Mic".
355 * @EM28XX_AMUX_CD:
356 * Only for devices with AC97. Corresponds to AC97 mixer "CD".
357 * @EM28XX_AMUX_AUX:
358 * Only for devices with AC97. Corresponds to AC97 mixer "Aux".
359 * @EM28XX_AMUX_PCM_OUT:
360 * Only for devices with AC97. Corresponds to AC97 mixer "PCM out".
361 *
362 * The em28xx chip itself has only two audio inputs: tuner and line in.
363 * On almost all devices, only the tuner input is used.
364 *
365 * However, on most devices, an auxiliary AC97 codec device is used,
366 * usually connected to the em28xx tuner input (except for
367 * @EM28XX_AMUX_LINE_IN).
368 *
369 * The AC97 device typically have several different inputs and outputs.
370 * The exact number and description depends on their model.
371 *
372 * It is possible to AC97 to mixer more than one different entries at the
373 * same time, via the alsa mux.
374 */
375 enum em28xx_amux {
376 EM28XX_AMUX_UNUSED = -1,
377 EM28XX_AMUX_VIDEO = 0,
378 EM28XX_AMUX_LINE_IN,
379
380 /* Some less-common mixer setups */
381 EM28XX_AMUX_VIDEO2,
382 EM28XX_AMUX_PHONE,
383 EM28XX_AMUX_MIC,
384 EM28XX_AMUX_CD,
385 EM28XX_AMUX_AUX,
386 EM28XX_AMUX_PCM_OUT,
387 };
388
389 enum em28xx_aout {
390 /* AC97 outputs */
391 EM28XX_AOUT_MASTER = BIT(0),
392 EM28XX_AOUT_LINE = BIT(1),
393 EM28XX_AOUT_MONO = BIT(2),
394 EM28XX_AOUT_LFE = BIT(3),
395 EM28XX_AOUT_SURR = BIT(4),
396
397 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
398 EM28XX_AOUT_PCM_IN = BIT(7),
399
400 /* Bits 10-8 are used to indicate the PCM IN record select */
401 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
402 EM28XX_AOUT_PCM_CD = 1 << 8,
403 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
404 EM28XX_AOUT_PCM_AUX = 3 << 8,
405 EM28XX_AOUT_PCM_LINE = 4 << 8,
406 EM28XX_AOUT_PCM_STEREO = 5 << 8,
407 EM28XX_AOUT_PCM_MONO = 6 << 8,
408 EM28XX_AOUT_PCM_PHONE = 7 << 8,
409 };
410
ac97_return_record_select(int a_out)411 static inline int ac97_return_record_select(int a_out)
412 {
413 return (a_out & 0x700) >> 8;
414 }
415
416 struct em28xx_reg_seq {
417 int reg;
418 unsigned char val, mask;
419 int sleep;
420 };
421
422 struct em28xx_input {
423 enum enum28xx_itype type;
424 unsigned int vmux;
425 enum em28xx_amux amux;
426 enum em28xx_aout aout;
427 const struct em28xx_reg_seq *gpio;
428 };
429
430 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
431
432 enum em28xx_decoder {
433 EM28XX_NODECODER = 0,
434 EM28XX_TVP5150,
435 EM28XX_SAA711X,
436 };
437
438 enum em28xx_sensor {
439 EM28XX_NOSENSOR = 0,
440 EM28XX_MT9V011,
441 EM28XX_MT9M001,
442 EM28XX_MT9M111,
443 EM28XX_OV2640,
444 };
445
446 enum em28xx_adecoder {
447 EM28XX_NOADECODER = 0,
448 EM28XX_TVAUDIO,
449 };
450
451 enum em28xx_led_role {
452 EM28XX_LED_ANALOG_CAPTURING = 0,
453 EM28XX_LED_DIGITAL_CAPTURING,
454 EM28XX_LED_DIGITAL_CAPTURING_TS2,
455 EM28XX_LED_ILLUMINATION,
456 EM28XX_NUM_LED_ROLES, /* must be the last */
457 };
458
459 struct em28xx_led {
460 enum em28xx_led_role role;
461 u8 gpio_reg;
462 u8 gpio_mask;
463 bool inverted;
464 };
465
466 enum em28xx_button_role {
467 EM28XX_BUTTON_SNAPSHOT = 0,
468 EM28XX_BUTTON_ILLUMINATION,
469 EM28XX_NUM_BUTTON_ROLES, /* must be the last */
470 };
471
472 struct em28xx_button {
473 enum em28xx_button_role role;
474 u8 reg_r;
475 u8 reg_clearing;
476 u8 mask;
477 bool inverted;
478 };
479
480 struct em28xx_board {
481 char *name;
482 int vchannels;
483 int tuner_type;
484 int tuner_addr;
485 unsigned int def_i2c_bus; /* Default I2C bus */
486
487 /* i2c flags */
488 unsigned int tda9887_conf;
489
490 /* GPIO sequences */
491 const struct em28xx_reg_seq *dvb_gpio;
492 const struct em28xx_reg_seq *suspend_gpio;
493 const struct em28xx_reg_seq *tuner_gpio;
494 const struct em28xx_reg_seq *mute_gpio;
495
496 unsigned int is_em2800:1;
497 unsigned int has_msp34xx:1;
498 unsigned int mts_firmware:1;
499 unsigned int max_range_640_480:1;
500 unsigned int has_dvb:1;
501 unsigned int has_dual_ts:1;
502 unsigned int is_webcam:1;
503 unsigned int valid:1;
504 unsigned int has_ir_i2c:1;
505
506 unsigned char xclk, i2c_speed;
507 unsigned char radio_addr;
508 unsigned short tvaudio_addr;
509
510 enum em28xx_decoder decoder;
511 enum em28xx_adecoder adecoder;
512
513 struct em28xx_input input[MAX_EM28XX_INPUT];
514 struct em28xx_input radio;
515 char *ir_codes;
516
517 /* LEDs that need to be controlled explicitly */
518 struct em28xx_led *leds;
519
520 /* Buttons */
521 const struct em28xx_button *buttons;
522 };
523
524 struct em28xx_eeprom {
525 u8 id[4]; /* 1a eb 67 95 */
526 __le16 vendor_ID;
527 __le16 product_ID;
528
529 __le16 chip_conf;
530
531 __le16 board_conf;
532
533 __le16 string1, string2, string3;
534
535 u8 string_idx_table;
536 };
537
538 #define EM28XX_CAPTURE_STREAM_EN 1
539
540 /* em28xx extensions */
541 #define EM28XX_AUDIO 0x10
542 #define EM28XX_DVB 0x20
543 #define EM28XX_RC 0x30
544 #define EM28XX_V4L2 0x40
545
546 /* em28xx resource types (used for res_get/res_lock etc */
547 #define EM28XX_RESOURCE_VIDEO 0x01
548 #define EM28XX_RESOURCE_VBI 0x02
549
550 struct em28xx_v4l2 {
551 struct kref ref;
552 struct em28xx *dev;
553
554 struct v4l2_device v4l2_dev;
555 struct v4l2_ctrl_handler ctrl_handler;
556
557 struct video_device vdev;
558 struct video_device vbi_dev;
559 struct video_device radio_dev;
560
561 /* Videobuf2 */
562 struct vb2_queue vb_vidq;
563 struct vb2_queue vb_vbiq;
564 struct mutex vb_queue_lock; /* Protects vb_vidq */
565 struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */
566
567 u8 vinmode;
568 u8 vinctl;
569
570 /* Camera specific fields */
571 int sensor_xres;
572 int sensor_yres;
573 int sensor_xtal;
574
575 int users; /* user count for exclusive use */
576 int streaming_users; /* number of actively streaming users */
577
578 u32 frequency; /* selected tuner frequency */
579
580 struct em28xx_fmt *format;
581 v4l2_std_id norm; /* selected tv norm */
582
583 /* Progressive/interlaced mode */
584 bool progressive;
585 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */
586 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */
587
588 /* Frame properties */
589 int width; /* current frame width */
590 int height; /* current frame height */
591 unsigned int hscale; /* horizontal scale factor (see datasheet) */
592 unsigned int vscale; /* vertical scale factor (see datasheet) */
593 unsigned int vbi_width;
594 unsigned int vbi_height; /* lines per field */
595
596 /* Capture state tracking */
597 int capture_type;
598 bool top_field;
599 int vbi_read;
600 unsigned int field_count;
601
602 #ifdef CONFIG_MEDIA_CONTROLLER
603 struct media_pad video_pad, vbi_pad;
604 struct media_entity *decoder;
605 #endif
606 };
607
608 struct em28xx_audio {
609 char name[50];
610 unsigned int num_urb;
611 char **transfer_buffer;
612 struct urb **urb;
613 struct usb_device *udev;
614 unsigned int capture_transfer_done;
615 struct snd_pcm_substream *capture_pcm_substream;
616
617 unsigned int hwptr_done_capture;
618 struct snd_card *sndcard;
619
620 size_t period;
621
622 int users;
623 spinlock_t slock; /* Protects struct em28xx_audio */
624
625 /* Controls streaming */
626 struct work_struct wq_trigger; /* trigger to start/stop audio */
627 atomic_t stream_started; /* stream should be running if true */
628 };
629
630 struct em28xx;
631
632 enum em28xx_i2c_algo_type {
633 EM28XX_I2C_ALGO_EM28XX = 0,
634 EM28XX_I2C_ALGO_EM2800,
635 EM28XX_I2C_ALGO_EM25XX_BUS_B,
636 };
637
638 struct em28xx_i2c_bus {
639 struct em28xx *dev;
640
641 unsigned int bus;
642 enum em28xx_i2c_algo_type algo_type;
643 };
644
645 /* main device struct */
646 struct em28xx {
647 struct kref ref;
648
649 // Sub-module data
650 struct em28xx_v4l2 *v4l2;
651 struct em28xx_dvb *dvb;
652 struct em28xx_audio adev;
653 struct em28xx_IR *ir;
654
655 // generic device properties
656 int model; // index in the device_data struct
657 int devno; // marks the number of this device
658 enum em28xx_chip_id chip_id;
659
660 unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge
661 unsigned int disconnected:1; // device has been disconnected
662 unsigned int has_video:1;
663 unsigned int is_audio_only:1;
664 unsigned int is_webcam:1;
665 unsigned int has_msp34xx:1;
666 unsigned int i2c_speed:2;
667 enum em28xx_int_audio_type int_audio_type;
668 enum em28xx_usb_audio_type usb_audio_type;
669 unsigned char name[32];
670
671 struct em28xx_board board;
672
673 enum em28xx_sensor em28xx_sensor; // camera specific
674
675 // Some older em28xx chips needs a waiting time after writing
676 unsigned int wait_after_write;
677
678 struct list_head devlist;
679
680 u32 i2s_speed; // I2S speed for audio digital stream
681
682 struct em28xx_audio_mode audio_mode;
683
684 int tuner_type; // type of the tuner
685
686 // i2c i/o
687 struct i2c_adapter i2c_adap[NUM_I2C_BUSES];
688 struct i2c_client i2c_client[NUM_I2C_BUSES];
689 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];
690
691 unsigned char eeprom_addrwidth_16bit:1;
692 unsigned int def_i2c_bus; // Default I2C bus
693 unsigned int cur_i2c_bus; // Current I2C bus
694 struct rt_mutex i2c_bus_lock;
695
696 // video for linux
697 unsigned int ctl_input; // selected input
698 unsigned int ctl_ainput;// selected audio input
699 unsigned int ctl_aoutput;// selected audio output
700 enum em28xx_amux amux_map[MAX_EM28XX_INPUT];
701
702 int mute;
703 int volume;
704
705 unsigned long hash; // eeprom hash - for boards with generic ID
706 unsigned long i2c_hash; // i2c devicelist hash -
707 // for boards with generic ID
708
709 struct work_struct request_module_wk;
710
711 // locks
712 struct mutex lock; /* protects em28xx struct */
713 struct mutex ctrl_urb_lock; /* protects urb_buf */
714
715 // resources in use
716 unsigned int resources;
717
718 // eeprom content
719 u8 *eedata;
720 u16 eedata_len;
721
722 // Isoc control struct
723 struct em28xx_dmaqueue vidq;
724 struct em28xx_dmaqueue vbiq;
725 struct em28xx_usb_ctl usb_ctl;
726
727 spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */
728
729 // usb transfer
730 struct usb_interface *intf; // the usb interface
731 u8 ifnum; // number of the assigned usb interface
732 u8 analog_ep_isoc; // address of isoc endpoint for analog
733 u8 analog_ep_bulk; // address of bulk endpoint for analog
734 u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2
735 u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2
736 u8 dvb_ep_isoc; // address of isoc endpoint for DVB
737 u8 dvb_ep_bulk; // address of bulk endpoint for DVB
738 int alt; // alternate setting
739 int max_pkt_size; // max packet size of the selected ep at alt
740 int packet_multiplier; // multiplier for wMaxPacketSize, used for
741 // URB buffer size definition
742 int num_alt; // number of alternative settings
743 unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize
744 unsigned int analog_xfer_bulk:1; // use bulk instead of isoc
745 // transfers for analog
746 int dvb_alt_isoc; // alternate setting for DVB isoc transfers
747 unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the
748 // selected DVB ep at dvb_alt
749 unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the
750 // selected DVB ep at dvb_alt
751 unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc
752 // transfers for DVB
753 char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer
754
755 // helper funcs that call usb_control_msg
756 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,
757 char *buf, int len);
758 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);
759 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,
760 char *buf, int len);
761 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,
762 char *buf, int len);
763 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);
764
765 enum em28xx_mode mode;
766
767 // Button state polling
768 struct delayed_work buttons_query_work;
769 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
770 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
771 u8 num_button_polling_addresses;
772 u16 button_polling_interval; // [ms]
773 // Snapshot button input device
774 char snapshot_button_path[30]; // path of the input dev
775 struct input_dev *sbutton_input_dev;
776
777 #ifdef CONFIG_MEDIA_CONTROLLER
778 struct media_device *media_dev;
779 struct media_entity input_ent[MAX_EM28XX_INPUT];
780 struct media_pad input_pad[MAX_EM28XX_INPUT];
781 #endif
782
783 struct em28xx *dev_next;
784 int ts;
785 };
786
787 #define kref_to_dev(d) container_of(d, struct em28xx, ref)
788
789 struct em28xx_ops {
790 struct list_head next;
791 char *name;
792 int id;
793 int (*init)(struct em28xx *dev);
794 int (*fini)(struct em28xx *dev);
795 int (*suspend)(struct em28xx *dev);
796 int (*resume)(struct em28xx *dev);
797 };
798
799 /* Provided by em28xx-i2c.c */
800 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus);
801 int em28xx_i2c_register(struct em28xx *dev, unsigned int bus,
802 enum em28xx_i2c_algo_type algo_type);
803 int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus);
804
805 /* Provided by em28xx-core.c */
806 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
807 char *buf, int len);
808 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
809 int em28xx_read_reg(struct em28xx *dev, u16 reg);
810 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
811 int len);
812 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
813 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
814 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
815 u8 bitmask);
816 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask);
817
818 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
819 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
820
821 int em28xx_audio_analog_set(struct em28xx *dev);
822 int em28xx_audio_setup(struct em28xx *dev);
823
824 const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
825 enum em28xx_led_role role);
826 int em28xx_capture_start(struct em28xx *dev, int start);
827 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
828 int num_bufs, int max_pkt_size, int packet_multiplier);
829 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
830 int xfer_bulk,
831 int num_bufs, int max_pkt_size, int packet_multiplier,
832 int (*urb_data_copy)
833 (struct em28xx *dev, struct urb *urb));
834 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
835 void em28xx_stop_urbs(struct em28xx *dev);
836 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
837 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio);
838 int em28xx_register_extension(struct em28xx_ops *dev);
839 void em28xx_unregister_extension(struct em28xx_ops *dev);
840 void em28xx_init_extension(struct em28xx *dev);
841 void em28xx_close_extension(struct em28xx *dev);
842 int em28xx_suspend_extension(struct em28xx *dev);
843 int em28xx_resume_extension(struct em28xx *dev);
844
845 /* Provided by em28xx-cards.c */
846 extern const struct em28xx_board em28xx_boards[];
847 extern struct usb_device_id em28xx_id_table[];
848 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
849 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl);
850 void em28xx_free_device(struct kref *ref);
851
852 /* Provided by em28xx-camera.c */
853 int em28xx_detect_sensor(struct em28xx *dev);
854 int em28xx_init_camera(struct em28xx *dev);
855
856 #endif
857