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 #define EM2874_BOARD_HAUPPAUGE_USB_QUADHD 106
156
157 /* Limits minimum and default number of buffers */
158 #define EM28XX_MIN_BUF 4
159 #define EM28XX_DEF_BUF 8
160
161 /*Limits the max URB message size */
162 #define URB_MAX_CTRL_SIZE 80
163
164 /* Params for validated field */
165 #define EM28XX_BOARD_NOT_VALIDATED 1
166 #define EM28XX_BOARD_VALIDATED 0
167
168 /* Params for em28xx_cmd() audio */
169 #define EM28XX_START_AUDIO 1
170 #define EM28XX_STOP_AUDIO 0
171
172 /* maximum number of em28xx boards */
173 #define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */
174
175 /* maximum number of frames that can be queued */
176 #define EM28XX_NUM_FRAMES 5
177 /* number of frames that get used for v4l2_read() */
178 #define EM28XX_NUM_READ_FRAMES 2
179
180 /* number of buffers for isoc transfers */
181 #define EM28XX_NUM_BUFS 5
182 #define EM28XX_DVB_NUM_BUFS 5
183
184 /* max number of I2C buses on em28xx devices */
185 #define NUM_I2C_BUSES 2
186
187 /*
188 * isoc transfers: number of packets for each buffer
189 * windows requests only 64 packets .. so we better do the same
190 * this is what I found out for all alternate numbers there!
191 */
192 #define EM28XX_NUM_ISOC_PACKETS 64
193 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
194
195 /*
196 * bulk transfers: transfer buffer size = packet size * packet multiplier
197 * USB 2.0 spec says bulk packet size is always 512 bytes
198 */
199 #define EM28XX_BULK_PACKET_MULTIPLIER 384
200 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94
201
202 #define EM28XX_INTERLACED_DEFAULT 1
203
204 /* time in msecs to wait for AC97 xfers to finish */
205 #define EM28XX_AC97_XFER_TIMEOUT 100
206
207 /* max. number of button state polling addresses */
208 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5
209
210 #define PRIMARY_TS 0
211 #define SECONDARY_TS 1
212
213 enum em28xx_mode {
214 EM28XX_SUSPEND,
215 EM28XX_ANALOG_MODE,
216 EM28XX_DIGITAL_MODE,
217 };
218
219 struct em28xx;
220
221 /**
222 * struct em28xx_usb_bufs - Contains URB-related buffer data
223 *
224 * @max_pkt_size: max packet size of isoc transaction
225 * @num_packets: number of packets in each buffer
226 * @num_bufs: number of allocated urb
227 * @urb: urb for isoc/bulk transfers
228 * @buf: transfer buffers for isoc/bulk transfer
229 */
230 struct em28xx_usb_bufs {
231 int max_pkt_size;
232 int num_packets;
233 int num_bufs;
234 struct urb **urb;
235 char **buf;
236 };
237
238 /**
239 * struct em28xx_usb_ctl - Contains URB-related buffer data
240 *
241 * @analog_bufs: isoc/bulk transfer buffers for analog mode
242 * @digital_bufs: isoc/bulk transfer buffers for digital mode
243 * @vid_buf: Stores already requested video buffers
244 * @vbi_buf: Stores already requested VBI buffers
245 * @urb_data_copy: copy data from URB
246 */
247 struct em28xx_usb_ctl {
248 struct em28xx_usb_bufs analog_bufs;
249 struct em28xx_usb_bufs digital_bufs;
250 struct em28xx_buffer *vid_buf;
251 struct em28xx_buffer *vbi_buf;
252 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb);
253 };
254
255 /**
256 * struct em28xx_fmt - Struct to enumberate video formats
257 *
258 * @fourcc: v4l2 format id
259 * @depth: mean number of bits to represent a pixel
260 * @reg: em28xx register value to set it
261 */
262 struct em28xx_fmt {
263 u32 fourcc;
264 int depth;
265 int reg;
266 };
267
268 /**
269 * struct em28xx_buffer- buffer for storing one video frame
270 *
271 * @vb: common v4l buffer stuff
272 * @list: List to associate it with the other buffers
273 * @mem: pointer to the buffer, as returned by vb2_plane_vaddr()
274 * @length: length of the buffer, as returned by vb2_plane_size()
275 * @top_field: If non-zero, indicate that the buffer is the top field
276 * @pos: Indicate the next position of the buffer to be filled.
277 * @vb_buf: pointer to vmalloc memory address in vb
278 *
279 * .. note::
280 *
281 * in interlaced mode, @pos is reset to zero at the start of each new
282 * field (not frame !)
283 */
284 struct em28xx_buffer {
285 struct vb2_v4l2_buffer vb; /* must be first */
286
287 struct list_head list;
288
289 void *mem;
290 unsigned int length;
291 int top_field;
292
293 unsigned int pos;
294
295 char *vb_buf;
296 };
297
298 struct em28xx_dmaqueue {
299 struct list_head active;
300
301 wait_queue_head_t wq;
302 };
303
304 /* inputs */
305
306 #define MAX_EM28XX_INPUT 4
307 enum enum28xx_itype {
308 EM28XX_VMUX_COMPOSITE = 1,
309 EM28XX_VMUX_SVIDEO,
310 EM28XX_VMUX_TELEVISION,
311 EM28XX_RADIO,
312 };
313
314 enum em28xx_ac97_mode {
315 EM28XX_NO_AC97 = 0,
316 EM28XX_AC97_EM202,
317 EM28XX_AC97_SIGMATEL,
318 EM28XX_AC97_OTHER,
319 };
320
321 struct em28xx_audio_mode {
322 enum em28xx_ac97_mode ac97;
323 };
324
325 enum em28xx_int_audio_type {
326 EM28XX_INT_AUDIO_NONE = 0,
327 EM28XX_INT_AUDIO_AC97,
328 EM28XX_INT_AUDIO_I2S,
329 };
330
331 enum em28xx_usb_audio_type {
332 EM28XX_USB_AUDIO_NONE = 0,
333 EM28XX_USB_AUDIO_CLASS,
334 EM28XX_USB_AUDIO_VENDOR,
335 };
336
337 /**
338 * enum em28xx_amux - describes the type of audio input used by em28xx
339 *
340 * @EM28XX_AMUX_UNUSED:
341 * Used only on em28xx dev->map field, in order to mark an entry
342 * as unused.
343 * @EM28XX_AMUX_VIDEO:
344 * On devices without AC97, this is the only value that it is currently
345 * allowed.
346 * On devices with AC97, it corresponds to the AC97 mixer "Video" control.
347 * @EM28XX_AMUX_LINE_IN:
348 * Only for devices with AC97. Corresponds to AC97 mixer "Line In".
349 * @EM28XX_AMUX_VIDEO2:
350 * Only for devices with AC97. It means that em28xx should use "Line In"
351 * And AC97 should use the "Video" mixer control.
352 * @EM28XX_AMUX_PHONE:
353 * Only for devices with AC97. Corresponds to AC97 mixer "Phone".
354 * @EM28XX_AMUX_MIC:
355 * Only for devices with AC97. Corresponds to AC97 mixer "Mic".
356 * @EM28XX_AMUX_CD:
357 * Only for devices with AC97. Corresponds to AC97 mixer "CD".
358 * @EM28XX_AMUX_AUX:
359 * Only for devices with AC97. Corresponds to AC97 mixer "Aux".
360 * @EM28XX_AMUX_PCM_OUT:
361 * Only for devices with AC97. Corresponds to AC97 mixer "PCM out".
362 *
363 * The em28xx chip itself has only two audio inputs: tuner and line in.
364 * On almost all devices, only the tuner input is used.
365 *
366 * However, on most devices, an auxiliary AC97 codec device is used,
367 * usually connected to the em28xx tuner input (except for
368 * @EM28XX_AMUX_LINE_IN).
369 *
370 * The AC97 device typically have several different inputs and outputs.
371 * The exact number and description depends on their model.
372 *
373 * It is possible to AC97 to mixer more than one different entries at the
374 * same time, via the alsa mux.
375 */
376 enum em28xx_amux {
377 EM28XX_AMUX_UNUSED = -1,
378 EM28XX_AMUX_VIDEO = 0,
379 EM28XX_AMUX_LINE_IN,
380
381 /* Some less-common mixer setups */
382 EM28XX_AMUX_VIDEO2,
383 EM28XX_AMUX_PHONE,
384 EM28XX_AMUX_MIC,
385 EM28XX_AMUX_CD,
386 EM28XX_AMUX_AUX,
387 EM28XX_AMUX_PCM_OUT,
388 };
389
390 enum em28xx_aout {
391 /* AC97 outputs */
392 EM28XX_AOUT_MASTER = BIT(0),
393 EM28XX_AOUT_LINE = BIT(1),
394 EM28XX_AOUT_MONO = BIT(2),
395 EM28XX_AOUT_LFE = BIT(3),
396 EM28XX_AOUT_SURR = BIT(4),
397
398 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
399 EM28XX_AOUT_PCM_IN = BIT(7),
400
401 /* Bits 10-8 are used to indicate the PCM IN record select */
402 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
403 EM28XX_AOUT_PCM_CD = 1 << 8,
404 EM28XX_AOUT_PCM_VIDEO = 2 << 8,
405 EM28XX_AOUT_PCM_AUX = 3 << 8,
406 EM28XX_AOUT_PCM_LINE = 4 << 8,
407 EM28XX_AOUT_PCM_STEREO = 5 << 8,
408 EM28XX_AOUT_PCM_MONO = 6 << 8,
409 EM28XX_AOUT_PCM_PHONE = 7 << 8,
410 };
411
ac97_return_record_select(int a_out)412 static inline int ac97_return_record_select(int a_out)
413 {
414 return (a_out & 0x700) >> 8;
415 }
416
417 struct em28xx_reg_seq {
418 int reg;
419 unsigned char val, mask;
420 int sleep;
421 };
422
423 struct em28xx_input {
424 enum enum28xx_itype type;
425 unsigned int vmux;
426 enum em28xx_amux amux;
427 enum em28xx_aout aout;
428 const struct em28xx_reg_seq *gpio;
429 };
430
431 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
432
433 enum em28xx_decoder {
434 EM28XX_NODECODER = 0,
435 EM28XX_TVP5150,
436 EM28XX_SAA711X,
437 };
438
439 enum em28xx_sensor {
440 EM28XX_NOSENSOR = 0,
441 EM28XX_MT9V011,
442 EM28XX_MT9M001,
443 EM28XX_MT9M111,
444 EM28XX_OV2640,
445 };
446
447 enum em28xx_adecoder {
448 EM28XX_NOADECODER = 0,
449 EM28XX_TVAUDIO,
450 };
451
452 enum em28xx_led_role {
453 EM28XX_LED_ANALOG_CAPTURING = 0,
454 EM28XX_LED_DIGITAL_CAPTURING,
455 EM28XX_LED_DIGITAL_CAPTURING_TS2,
456 EM28XX_LED_ILLUMINATION,
457 EM28XX_NUM_LED_ROLES, /* must be the last */
458 };
459
460 struct em28xx_led {
461 enum em28xx_led_role role;
462 u8 gpio_reg;
463 u8 gpio_mask;
464 bool inverted;
465 };
466
467 enum em28xx_button_role {
468 EM28XX_BUTTON_SNAPSHOT = 0,
469 EM28XX_BUTTON_ILLUMINATION,
470 EM28XX_NUM_BUTTON_ROLES, /* must be the last */
471 };
472
473 struct em28xx_button {
474 enum em28xx_button_role role;
475 u8 reg_r;
476 u8 reg_clearing;
477 u8 mask;
478 bool inverted;
479 };
480
481 struct em28xx_board {
482 char *name;
483 int vchannels;
484 int tuner_type;
485 int tuner_addr;
486 unsigned int def_i2c_bus; /* Default I2C bus */
487
488 /* i2c flags */
489 unsigned int tda9887_conf;
490
491 /* GPIO sequences */
492 const struct em28xx_reg_seq *dvb_gpio;
493 const struct em28xx_reg_seq *suspend_gpio;
494 const struct em28xx_reg_seq *tuner_gpio;
495 const struct em28xx_reg_seq *mute_gpio;
496
497 unsigned int is_em2800:1;
498 unsigned int has_msp34xx:1;
499 unsigned int mts_firmware:1;
500 unsigned int max_range_640_480:1;
501 unsigned int has_dvb:1;
502 unsigned int has_dual_ts:1;
503 unsigned int is_webcam:1;
504 unsigned int valid:1;
505 unsigned int has_ir_i2c:1;
506
507 unsigned char xclk, i2c_speed;
508 unsigned char radio_addr;
509 unsigned short tvaudio_addr;
510
511 enum em28xx_decoder decoder;
512 enum em28xx_adecoder adecoder;
513
514 struct em28xx_input input[MAX_EM28XX_INPUT];
515 struct em28xx_input radio;
516 char *ir_codes;
517
518 /* LEDs that need to be controlled explicitly */
519 struct em28xx_led *leds;
520
521 /* Buttons */
522 const struct em28xx_button *buttons;
523 };
524
525 struct em28xx_eeprom {
526 u8 id[4]; /* 1a eb 67 95 */
527 __le16 vendor_ID;
528 __le16 product_ID;
529
530 __le16 chip_conf;
531
532 __le16 board_conf;
533
534 __le16 string1, string2, string3;
535
536 u8 string_idx_table;
537 };
538
539 #define EM28XX_CAPTURE_STREAM_EN 1
540
541 /* em28xx extensions */
542 #define EM28XX_AUDIO 0x10
543 #define EM28XX_DVB 0x20
544 #define EM28XX_RC 0x30
545 #define EM28XX_V4L2 0x40
546
547 /* em28xx resource types (used for res_get/res_lock etc */
548 #define EM28XX_RESOURCE_VIDEO 0x01
549 #define EM28XX_RESOURCE_VBI 0x02
550
551 struct em28xx_v4l2 {
552 struct kref ref;
553 struct em28xx *dev;
554
555 struct v4l2_device v4l2_dev;
556 struct v4l2_ctrl_handler ctrl_handler;
557
558 struct video_device vdev;
559 struct video_device vbi_dev;
560 struct video_device radio_dev;
561
562 /* Videobuf2 */
563 struct vb2_queue vb_vidq;
564 struct vb2_queue vb_vbiq;
565 struct mutex vb_queue_lock; /* Protects vb_vidq */
566 struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */
567
568 u8 vinmode;
569 u8 vinctl;
570
571 /* Camera specific fields */
572 int sensor_xres;
573 int sensor_yres;
574 int sensor_xtal;
575
576 int users; /* user count for exclusive use */
577 int streaming_users; /* number of actively streaming users */
578
579 u32 frequency; /* selected tuner frequency */
580
581 struct em28xx_fmt *format;
582 v4l2_std_id norm; /* selected tv norm */
583
584 /* Progressive/interlaced mode */
585 bool progressive;
586 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */
587 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */
588
589 /* Frame properties */
590 int width; /* current frame width */
591 int height; /* current frame height */
592 unsigned int hscale; /* horizontal scale factor (see datasheet) */
593 unsigned int vscale; /* vertical scale factor (see datasheet) */
594 unsigned int vbi_width;
595 unsigned int vbi_height; /* lines per field */
596
597 /* Capture state tracking */
598 int capture_type;
599 bool top_field;
600 int vbi_read;
601 unsigned int field_count;
602
603 #ifdef CONFIG_MEDIA_CONTROLLER
604 struct media_pad video_pad, vbi_pad;
605 struct media_entity *decoder;
606 #endif
607 };
608
609 struct em28xx_audio {
610 char name[50];
611 unsigned int num_urb;
612 char **transfer_buffer;
613 struct urb **urb;
614 struct usb_device *udev;
615 unsigned int capture_transfer_done;
616 struct snd_pcm_substream *capture_pcm_substream;
617
618 unsigned int hwptr_done_capture;
619 struct snd_card *sndcard;
620
621 size_t period;
622
623 int users;
624 spinlock_t slock; /* Protects struct em28xx_audio */
625
626 /* Controls streaming */
627 struct work_struct wq_trigger; /* trigger to start/stop audio */
628 atomic_t stream_started; /* stream should be running if true */
629 };
630
631 enum em28xx_i2c_algo_type {
632 EM28XX_I2C_ALGO_EM28XX = 0,
633 EM28XX_I2C_ALGO_EM2800,
634 EM28XX_I2C_ALGO_EM25XX_BUS_B,
635 };
636
637 struct em28xx_i2c_bus {
638 struct em28xx *dev;
639
640 unsigned int bus;
641 enum em28xx_i2c_algo_type algo_type;
642 };
643
644 /* main device struct */
645 struct em28xx {
646 struct kref ref;
647
648 // Sub-module data
649 struct em28xx_v4l2 *v4l2;
650 struct em28xx_dvb *dvb;
651 struct em28xx_audio adev;
652 struct em28xx_IR *ir;
653
654 // generic device properties
655 int model; // index in the device_data struct
656 int devno; // marks the number of this device
657 enum em28xx_chip_id chip_id;
658
659 unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge
660 unsigned int disconnected:1; // device has been disconnected
661 unsigned int has_video:1;
662 unsigned int is_audio_only:1;
663 unsigned int is_webcam:1;
664 unsigned int has_msp34xx:1;
665 unsigned int i2c_speed:2;
666 enum em28xx_int_audio_type int_audio_type;
667 enum em28xx_usb_audio_type usb_audio_type;
668 unsigned char name[32];
669
670 struct em28xx_board board;
671
672 enum em28xx_sensor em28xx_sensor; // camera specific
673
674 // Some older em28xx chips needs a waiting time after writing
675 unsigned int wait_after_write;
676
677 struct list_head devlist;
678
679 u32 i2s_speed; // I2S speed for audio digital stream
680
681 struct em28xx_audio_mode audio_mode;
682
683 int tuner_type; // type of the tuner
684
685 // i2c i/o
686 struct i2c_adapter i2c_adap[NUM_I2C_BUSES];
687 struct i2c_client i2c_client[NUM_I2C_BUSES];
688 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];
689
690 unsigned char eeprom_addrwidth_16bit:1;
691 unsigned int def_i2c_bus; // Default I2C bus
692 unsigned int cur_i2c_bus; // Current I2C bus
693 struct rt_mutex i2c_bus_lock;
694
695 // video for linux
696 unsigned int ctl_input; // selected input
697 unsigned int ctl_ainput;// selected audio input
698 unsigned int ctl_aoutput;// selected audio output
699 enum em28xx_amux amux_map[MAX_EM28XX_INPUT];
700
701 int mute;
702 int volume;
703
704 unsigned long hash; // eeprom hash - for boards with generic ID
705 unsigned long i2c_hash; // i2c devicelist hash -
706 // for boards with generic ID
707
708 struct work_struct request_module_wk;
709
710 // locks
711 struct mutex lock; /* protects em28xx struct */
712 struct mutex ctrl_urb_lock; /* protects urb_buf */
713
714 // resources in use
715 unsigned int resources;
716
717 // eeprom content
718 u8 *eedata;
719 u16 eedata_len;
720
721 // Isoc control struct
722 struct em28xx_dmaqueue vidq;
723 struct em28xx_dmaqueue vbiq;
724 struct em28xx_usb_ctl usb_ctl;
725
726 spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */
727
728 // usb transfer
729 struct usb_interface *intf; // the usb interface
730 u8 ifnum; // number of the assigned usb interface
731 u8 analog_ep_isoc; // address of isoc endpoint for analog
732 u8 analog_ep_bulk; // address of bulk endpoint for analog
733 u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2
734 u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2
735 u8 dvb_ep_isoc; // address of isoc endpoint for DVB
736 u8 dvb_ep_bulk; // address of bulk endpoint for DVB
737 int alt; // alternate setting
738 int max_pkt_size; // max packet size of the selected ep at alt
739 int packet_multiplier; // multiplier for wMaxPacketSize, used for
740 // URB buffer size definition
741 int num_alt; // number of alternative settings
742 unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize
743 unsigned int analog_xfer_bulk:1; // use bulk instead of isoc
744 // transfers for analog
745 int dvb_alt_isoc; // alternate setting for DVB isoc transfers
746 unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the
747 // selected DVB ep at dvb_alt
748 unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the
749 // selected DVB ep at dvb_alt
750 unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc
751 // transfers for DVB
752 char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer
753
754 // helper funcs that call usb_control_msg
755 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,
756 char *buf, int len);
757 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);
758 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,
759 char *buf, int len);
760 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,
761 char *buf, int len);
762 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);
763
764 enum em28xx_mode mode;
765
766 // Button state polling
767 struct delayed_work buttons_query_work;
768 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
769 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
770 u8 num_button_polling_addresses;
771 u16 button_polling_interval; // [ms]
772 // Snapshot button input device
773 char snapshot_button_path[30]; // path of the input dev
774 struct input_dev *sbutton_input_dev;
775
776 #ifdef CONFIG_MEDIA_CONTROLLER
777 struct media_device *media_dev;
778 struct media_entity input_ent[MAX_EM28XX_INPUT];
779 struct media_pad input_pad[MAX_EM28XX_INPUT];
780 #endif
781
782 struct em28xx *dev_next;
783 int ts;
784 };
785
786 #define kref_to_dev(d) container_of(d, struct em28xx, ref)
787
788 struct em28xx_ops {
789 struct list_head next;
790 char *name;
791 int id;
792 int (*init)(struct em28xx *dev);
793 int (*fini)(struct em28xx *dev);
794 int (*suspend)(struct em28xx *dev);
795 int (*resume)(struct em28xx *dev);
796 };
797
798 /* Provided by em28xx-i2c.c */
799 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus);
800 int em28xx_i2c_register(struct em28xx *dev, unsigned int bus,
801 enum em28xx_i2c_algo_type algo_type);
802 int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus);
803
804 /* Provided by em28xx-core.c */
805 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
806 char *buf, int len);
807 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
808 int em28xx_read_reg(struct em28xx *dev, u16 reg);
809 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
810 int len);
811 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
812 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
813 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
814 u8 bitmask);
815 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask);
816
817 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
818 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
819
820 int em28xx_audio_analog_set(struct em28xx *dev);
821 int em28xx_audio_setup(struct em28xx *dev);
822
823 const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
824 enum em28xx_led_role role);
825 int em28xx_capture_start(struct em28xx *dev, int start);
826 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
827 int num_bufs, int max_pkt_size, int packet_multiplier);
828 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
829 int xfer_bulk,
830 int num_bufs, int max_pkt_size, int packet_multiplier,
831 int (*urb_data_copy)
832 (struct em28xx *dev, struct urb *urb));
833 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
834 void em28xx_stop_urbs(struct em28xx *dev);
835 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
836 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio);
837 int em28xx_register_extension(struct em28xx_ops *dev);
838 void em28xx_unregister_extension(struct em28xx_ops *dev);
839 void em28xx_init_extension(struct em28xx *dev);
840 void em28xx_close_extension(struct em28xx *dev);
841 int em28xx_suspend_extension(struct em28xx *dev);
842 int em28xx_resume_extension(struct em28xx *dev);
843
844 /* Provided by em28xx-cards.c */
845 extern const struct em28xx_board em28xx_boards[];
846 extern struct usb_device_id em28xx_id_table[];
847 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
848 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl);
849 void em28xx_free_device(struct kref *ref);
850
851 /* Provided by em28xx-camera.c */
852 int em28xx_detect_sensor(struct em28xx *dev);
853 int em28xx_init_camera(struct em28xx *dev);
854
855 #endif
856