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#define EM28XX_VERSION "0.2.1" 30#define DRIVER_DESC "Empia em28xx device driver" 31 32#include <linux/workqueue.h> 33#include <linux/i2c.h> 34#include <linux/mutex.h> 35#include <linux/kref.h> 36#include <linux/videodev2.h> 37 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/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 97 147 148/* Limits minimum and default number of buffers */ 149#define EM28XX_MIN_BUF 4 150#define EM28XX_DEF_BUF 8 151 152/*Limits the max URB message size */ 153#define URB_MAX_CTRL_SIZE 80 154 155/* Params for validated field */ 156#define EM28XX_BOARD_NOT_VALIDATED 1 157#define EM28XX_BOARD_VALIDATED 0 158 159/* Params for em28xx_cmd() audio */ 160#define EM28XX_START_AUDIO 1 161#define EM28XX_STOP_AUDIO 0 162 163/* maximum number of em28xx boards */ 164#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 165 166/* maximum number of frames that can be queued */ 167#define EM28XX_NUM_FRAMES 5 168/* number of frames that get used for v4l2_read() */ 169#define EM28XX_NUM_READ_FRAMES 2 170 171/* number of buffers for isoc transfers */ 172#define EM28XX_NUM_BUFS 5 173#define EM28XX_DVB_NUM_BUFS 5 174 175/* max number of I2C buses on em28xx devices */ 176#define NUM_I2C_BUSES 2 177 178/* isoc transfers: number of packets for each buffer 179 windows requests only 64 packets .. so we better do the same 180 this is what I found out for all alternate numbers there! 181 */ 182#define EM28XX_NUM_ISOC_PACKETS 64 183#define EM28XX_DVB_NUM_ISOC_PACKETS 64 184 185/* bulk transfers: transfer buffer size = packet size * packet multiplier 186 USB 2.0 spec says bulk packet size is always 512 bytes 187 */ 188#define EM28XX_BULK_PACKET_MULTIPLIER 384 189#define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 190 191#define EM28XX_INTERLACED_DEFAULT 1 192 193/* 194 * Time in msecs to wait for i2c xfers to finish. 195 * 35ms is the maximum time a SMBUS device could wait when 196 * clock stretching is used. As the transfer itself will take 197 * some time to happen, set it to 35 ms. 198 * 199 * Ok, I2C doesn't specify any limit. So, eventually, we may need 200 * to increase this timeout. 201 * 202 * FIXME: this assumes that an I2C message is not longer than 1ms. 203 * This is actually dependent on the I2C bus speed, although most 204 * devices use a 100kHz clock. So, this assumtion is true most of 205 * the time. 206 */ 207#define EM28XX_I2C_XFER_TIMEOUT 36 208 209/* time in msecs to wait for AC97 xfers to finish */ 210#define EM28XX_AC97_XFER_TIMEOUT 100 211 212/* max. number of button state polling addresses */ 213#define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 214 215enum em28xx_mode { 216 EM28XX_SUSPEND, 217 EM28XX_ANALOG_MODE, 218 EM28XX_DIGITAL_MODE, 219}; 220 221struct em28xx; 222 223struct em28xx_usb_bufs { 224 /* max packet size of isoc transaction */ 225 int max_pkt_size; 226 227 /* number of packets in each buffer */ 228 int num_packets; 229 230 /* number of allocated urbs */ 231 int num_bufs; 232 233 /* urb for isoc/bulk transfers */ 234 struct urb **urb; 235 236 /* transfer buffers for isoc/bulk transfer */ 237 char **transfer_buffer; 238}; 239 240struct em28xx_usb_ctl { 241 /* isoc/bulk transfer buffers for analog mode */ 242 struct em28xx_usb_bufs analog_bufs; 243 244 /* isoc/bulk transfer buffers for digital mode */ 245 struct em28xx_usb_bufs digital_bufs; 246 247 /* Stores already requested buffers */ 248 struct em28xx_buffer *vid_buf; 249 struct em28xx_buffer *vbi_buf; 250 251 /* copy data from URB */ 252 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb); 253 254}; 255 256/* Struct to enumberate video formats */ 257struct em28xx_fmt { 258 char *name; 259 u32 fourcc; /* v4l2 format id */ 260 int depth; 261 int reg; 262}; 263 264/* buffer for one video frame */ 265struct em28xx_buffer { 266 /* common v4l buffer stuff -- must be first */ 267 struct vb2_buffer vb; 268 struct list_head list; 269 270 void *mem; 271 unsigned int length; 272 int top_field; 273 274 /* counter to control buffer fill */ 275 unsigned int pos; 276 /* NOTE; in interlaced mode, this value is reset to zero at 277 * the start of each new field (not frame !) */ 278 279 /* pointer to vmalloc memory address in vb */ 280 char *vb_buf; 281}; 282 283struct em28xx_dmaqueue { 284 struct list_head active; 285 286 wait_queue_head_t wq; 287}; 288 289/* inputs */ 290 291#define MAX_EM28XX_INPUT 4 292enum enum28xx_itype { 293 EM28XX_VMUX_COMPOSITE1 = 1, 294 EM28XX_VMUX_COMPOSITE2, 295 EM28XX_VMUX_COMPOSITE3, 296 EM28XX_VMUX_COMPOSITE4, 297 EM28XX_VMUX_SVIDEO, 298 EM28XX_VMUX_TELEVISION, 299 EM28XX_VMUX_CABLE, 300 EM28XX_VMUX_DVB, 301 EM28XX_VMUX_DEBUG, 302 EM28XX_RADIO, 303}; 304 305enum em28xx_ac97_mode { 306 EM28XX_NO_AC97 = 0, 307 EM28XX_AC97_EM202, 308 EM28XX_AC97_SIGMATEL, 309 EM28XX_AC97_OTHER, 310}; 311 312struct em28xx_audio_mode { 313 enum em28xx_ac97_mode ac97; 314}; 315 316enum em28xx_int_audio_type { 317 EM28XX_INT_AUDIO_NONE = 0, 318 EM28XX_INT_AUDIO_AC97, 319 EM28XX_INT_AUDIO_I2S, 320}; 321 322enum em28xx_usb_audio_type { 323 EM28XX_USB_AUDIO_NONE = 0, 324 EM28XX_USB_AUDIO_CLASS, 325 EM28XX_USB_AUDIO_VENDOR, 326}; 327 328/* em28xx has two audio inputs: tuner and line in. 329 However, on most devices, an auxiliary AC97 codec device is used. 330 The AC97 device may have several different inputs and outputs, 331 depending on their model. So, it is possible to use AC97 mixer to 332 address more than two different entries. 333 */ 334enum em28xx_amux { 335 /* This is the only entry for em28xx tuner input */ 336 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 337 338 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 339 340 /* Some less-common mixer setups */ 341 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 342 EM28XX_AMUX_PHONE, 343 EM28XX_AMUX_MIC, 344 EM28XX_AMUX_CD, 345 EM28XX_AMUX_AUX, 346 EM28XX_AMUX_PCM_OUT, 347}; 348 349enum em28xx_aout { 350 /* AC97 outputs */ 351 EM28XX_AOUT_MASTER = 1 << 0, 352 EM28XX_AOUT_LINE = 1 << 1, 353 EM28XX_AOUT_MONO = 1 << 2, 354 EM28XX_AOUT_LFE = 1 << 3, 355 EM28XX_AOUT_SURR = 1 << 4, 356 357 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 358 EM28XX_AOUT_PCM_IN = 1 << 7, 359 360 /* Bits 10-8 are used to indicate the PCM IN record select */ 361 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 362 EM28XX_AOUT_PCM_CD = 1 << 8, 363 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 364 EM28XX_AOUT_PCM_AUX = 3 << 8, 365 EM28XX_AOUT_PCM_LINE = 4 << 8, 366 EM28XX_AOUT_PCM_STEREO = 5 << 8, 367 EM28XX_AOUT_PCM_MONO = 6 << 8, 368 EM28XX_AOUT_PCM_PHONE = 7 << 8, 369}; 370 371static inline int ac97_return_record_select(int a_out) 372{ 373 return (a_out & 0x700) >> 8; 374} 375 376struct em28xx_reg_seq { 377 int reg; 378 unsigned char val, mask; 379 int sleep; 380}; 381 382struct em28xx_input { 383 enum enum28xx_itype type; 384 unsigned int vmux; 385 enum em28xx_amux amux; 386 enum em28xx_aout aout; 387 struct em28xx_reg_seq *gpio; 388}; 389 390#define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 391 392enum em28xx_decoder { 393 EM28XX_NODECODER = 0, 394 EM28XX_TVP5150, 395 EM28XX_SAA711X, 396}; 397 398enum em28xx_sensor { 399 EM28XX_NOSENSOR = 0, 400 EM28XX_MT9V011, 401 EM28XX_MT9M001, 402 EM28XX_MT9M111, 403 EM28XX_OV2640, 404}; 405 406enum em28xx_adecoder { 407 EM28XX_NOADECODER = 0, 408 EM28XX_TVAUDIO, 409}; 410 411enum em28xx_led_role { 412 EM28XX_LED_ANALOG_CAPTURING = 0, 413 EM28XX_LED_DIGITAL_CAPTURING, 414 EM28XX_LED_ILLUMINATION, 415 EM28XX_NUM_LED_ROLES, /* must be the last */ 416}; 417 418struct em28xx_led { 419 enum em28xx_led_role role; 420 u8 gpio_reg; 421 u8 gpio_mask; 422 bool inverted; 423}; 424 425enum em28xx_button_role { 426 EM28XX_BUTTON_SNAPSHOT = 0, 427 EM28XX_BUTTON_ILLUMINATION, 428 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 429}; 430 431struct em28xx_button { 432 enum em28xx_button_role role; 433 u8 reg_r; 434 u8 reg_clearing; 435 u8 mask; 436 bool inverted; 437}; 438 439struct em28xx_board { 440 char *name; 441 int vchannels; 442 int tuner_type; 443 int tuner_addr; 444 unsigned def_i2c_bus; /* Default I2C bus */ 445 446 /* i2c flags */ 447 unsigned int tda9887_conf; 448 449 /* GPIO sequences */ 450 struct em28xx_reg_seq *dvb_gpio; 451 struct em28xx_reg_seq *suspend_gpio; 452 struct em28xx_reg_seq *tuner_gpio; 453 struct em28xx_reg_seq *mute_gpio; 454 455 unsigned int is_em2800:1; 456 unsigned int has_msp34xx:1; 457 unsigned int mts_firmware:1; 458 unsigned int max_range_640_480:1; 459 unsigned int has_dvb:1; 460 unsigned int is_webcam:1; 461 unsigned int valid:1; 462 unsigned int has_ir_i2c:1; 463 464 unsigned char xclk, i2c_speed; 465 unsigned char radio_addr; 466 unsigned short tvaudio_addr; 467 468 enum em28xx_decoder decoder; 469 enum em28xx_adecoder adecoder; 470 471 struct em28xx_input input[MAX_EM28XX_INPUT]; 472 struct em28xx_input radio; 473 char *ir_codes; 474 475 /* LEDs that need to be controlled explicitly */ 476 struct em28xx_led *leds; 477 478 /* Buttons */ 479 struct em28xx_button *buttons; 480}; 481 482struct em28xx_eeprom { 483 u8 id[4]; /* 1a eb 67 95 */ 484 __le16 vendor_ID; 485 __le16 product_ID; 486 487 __le16 chip_conf; 488 489 __le16 board_conf; 490 491 __le16 string1, string2, string3; 492 493 u8 string_idx_table; 494}; 495 496#define EM28XX_CAPTURE_STREAM_EN 1 497 498/* em28xx extensions */ 499#define EM28XX_AUDIO 0x10 500#define EM28XX_DVB 0x20 501#define EM28XX_RC 0x30 502#define EM28XX_V4L2 0x40 503 504/* em28xx resource types (used for res_get/res_lock etc */ 505#define EM28XX_RESOURCE_VIDEO 0x01 506#define EM28XX_RESOURCE_VBI 0x02 507 508struct em28xx_v4l2 { 509 struct kref ref; 510 struct em28xx *dev; 511 512 struct v4l2_device v4l2_dev; 513 struct v4l2_ctrl_handler ctrl_handler; 514 struct v4l2_clk *clk; 515 516 struct video_device vdev; 517 struct video_device vbi_dev; 518 struct video_device radio_dev; 519 520 /* Videobuf2 */ 521 struct vb2_queue vb_vidq; 522 struct vb2_queue vb_vbiq; 523 struct mutex vb_queue_lock; 524 struct mutex vb_vbi_queue_lock; 525 526 u8 vinmode; 527 u8 vinctl; 528 529 /* Camera specific fields */ 530 int sensor_xres; 531 int sensor_yres; 532 int sensor_xtal; 533 534 int users; /* user count for exclusive use */ 535 int streaming_users; /* number of actively streaming users */ 536 537 u32 frequency; /* selected tuner frequency */ 538 539 struct em28xx_fmt *format; 540 v4l2_std_id norm; /* selected tv norm */ 541 542 /* Progressive/interlaced mode */ 543 bool progressive; 544 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 545 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 546 547 /* Frame properties */ 548 int width; /* current frame width */ 549 int height; /* current frame height */ 550 unsigned hscale; /* horizontal scale factor (see datasheet) */ 551 unsigned vscale; /* vertical scale factor (see datasheet) */ 552 unsigned int vbi_width; 553 unsigned int vbi_height; /* lines per field */ 554 555 /* Capture state tracking */ 556 int capture_type; 557 bool top_field; 558 int vbi_read; 559 unsigned int field_count; 560}; 561 562struct em28xx_audio { 563 char name[50]; 564 unsigned num_urb; 565 char **transfer_buffer; 566 struct urb **urb; 567 struct usb_device *udev; 568 unsigned int capture_transfer_done; 569 struct snd_pcm_substream *capture_pcm_substream; 570 571 unsigned int hwptr_done_capture; 572 struct snd_card *sndcard; 573 574 size_t period; 575 576 int users; 577 spinlock_t slock; 578 579 /* Controls streaming */ 580 struct work_struct wq_trigger; /* trigger to start/stop audio */ 581 atomic_t stream_started; /* stream should be running if true */ 582}; 583 584struct em28xx; 585 586enum em28xx_i2c_algo_type { 587 EM28XX_I2C_ALGO_EM28XX = 0, 588 EM28XX_I2C_ALGO_EM2800, 589 EM28XX_I2C_ALGO_EM25XX_BUS_B, 590}; 591 592struct em28xx_i2c_bus { 593 struct em28xx *dev; 594 595 unsigned bus; 596 enum em28xx_i2c_algo_type algo_type; 597}; 598 599/* main device struct */ 600struct em28xx { 601 struct kref ref; 602 603 /* Sub-module data */ 604 struct em28xx_v4l2 *v4l2; 605 struct em28xx_dvb *dvb; 606 struct em28xx_audio adev; 607 struct em28xx_IR *ir; 608 609 /* generic device properties */ 610 char name[30]; /* name (including minor) of the device */ 611 int model; /* index in the device_data struct */ 612 int devno; /* marks the number of this device */ 613 enum em28xx_chip_id chip_id; 614 615 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 616 unsigned char disconnected:1; /* device has been diconnected */ 617 unsigned int has_video:1; 618 unsigned int is_audio_only:1; 619 enum em28xx_int_audio_type int_audio_type; 620 enum em28xx_usb_audio_type usb_audio_type; 621 622 struct em28xx_board board; 623 624 enum em28xx_sensor em28xx_sensor; /* camera specific */ 625 626 /* Some older em28xx chips needs a waiting time after writing */ 627 unsigned int wait_after_write; 628 629 struct list_head devlist; 630 631 u32 i2s_speed; /* I2S speed for audio digital stream */ 632 633 struct em28xx_audio_mode audio_mode; 634 635 int tuner_type; /* type of the tuner */ 636 637 /* i2c i/o */ 638 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 639 struct i2c_client i2c_client[NUM_I2C_BUSES]; 640 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 641 642 unsigned char eeprom_addrwidth_16bit:1; 643 unsigned def_i2c_bus; /* Default I2C bus */ 644 unsigned cur_i2c_bus; /* Current I2C bus */ 645 struct rt_mutex i2c_bus_lock; 646 647 /* video for linux */ 648 unsigned int ctl_input; /* selected input */ 649 unsigned int ctl_ainput;/* selected audio input */ 650 unsigned int ctl_aoutput;/* selected audio output */ 651 int mute; 652 int volume; 653 654 unsigned long hash; /* eeprom hash - for boards with generic ID */ 655 unsigned long i2c_hash; /* i2c devicelist hash - 656 for boards with generic ID */ 657 658 struct work_struct request_module_wk; 659 660 /* locks */ 661 struct mutex lock; 662 struct mutex ctrl_urb_lock; /* protects urb_buf */ 663 664 /* resources in use */ 665 unsigned int resources; 666 667 /* eeprom content */ 668 u8 *eedata; 669 u16 eedata_len; 670 671 /* Isoc control struct */ 672 struct em28xx_dmaqueue vidq; 673 struct em28xx_dmaqueue vbiq; 674 struct em28xx_usb_ctl usb_ctl; 675 spinlock_t slock; 676 677 /* usb transfer */ 678 struct usb_device *udev; /* the usb device */ 679 u8 ifnum; /* number of the assigned usb interface */ 680 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 681 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 682 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 683 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 684 int alt; /* alternate setting */ 685 int max_pkt_size; /* max packet size of the selected ep at alt */ 686 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 687 URB buffer size definition */ 688 int num_alt; /* number of alternative settings */ 689 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 690 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 691 transfers for analog */ 692 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 693 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 694 selected DVB ep at dvb_alt */ 695 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 696 transfers for DVB */ 697 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 698 699 /* helper funcs that call usb_control_msg */ 700 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, 701 char *buf, int len); 702 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); 703 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, 704 char *buf, int len); 705 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, 706 char *buf, int len); 707 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); 708 709 enum em28xx_mode mode; 710 711 /* Button state polling */ 712 struct delayed_work buttons_query_work; 713 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 714 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 715 u8 num_button_polling_addresses; 716 u16 button_polling_interval; /* [ms] */ 717 /* Snapshot button input device */ 718 char snapshot_button_path[30]; /* path of the input dev */ 719 struct input_dev *sbutton_input_dev; 720}; 721 722#define kref_to_dev(d) container_of(d, struct em28xx, ref) 723 724struct em28xx_ops { 725 struct list_head next; 726 char *name; 727 int id; 728 int (*init)(struct em28xx *); 729 int (*fini)(struct em28xx *); 730 int (*suspend)(struct em28xx *); 731 int (*resume)(struct em28xx *); 732}; 733 734/* Provided by em28xx-i2c.c */ 735void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 736int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 737 enum em28xx_i2c_algo_type algo_type); 738int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 739 740/* Provided by em28xx-core.c */ 741int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 742 char *buf, int len); 743int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 744int em28xx_read_reg(struct em28xx *dev, u16 reg); 745int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 746 int len); 747int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 748int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 749int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 750 u8 bitmask); 751int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 752 753int em28xx_read_ac97(struct em28xx *dev, u8 reg); 754int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 755 756int em28xx_audio_analog_set(struct em28xx *dev); 757int em28xx_audio_setup(struct em28xx *dev); 758 759const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 760 enum em28xx_led_role role); 761int em28xx_capture_start(struct em28xx *dev, int start); 762int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 763 int num_bufs, int max_pkt_size, int packet_multiplier); 764int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 765 int xfer_bulk, 766 int num_bufs, int max_pkt_size, int packet_multiplier, 767 int (*urb_data_copy) 768 (struct em28xx *dev, struct urb *urb)); 769void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 770void em28xx_stop_urbs(struct em28xx *dev); 771int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 772int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 773int em28xx_register_extension(struct em28xx_ops *dev); 774void em28xx_unregister_extension(struct em28xx_ops *dev); 775void em28xx_init_extension(struct em28xx *dev); 776void em28xx_close_extension(struct em28xx *dev); 777int em28xx_suspend_extension(struct em28xx *dev); 778int em28xx_resume_extension(struct em28xx *dev); 779 780/* Provided by em28xx-cards.c */ 781extern struct em28xx_board em28xx_boards[]; 782extern struct usb_device_id em28xx_id_table[]; 783int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 784void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 785void em28xx_free_device(struct kref *ref); 786 787/* Provided by em28xx-camera.c */ 788int em28xx_detect_sensor(struct em28xx *dev); 789int em28xx_init_camera(struct em28xx *dev); 790 791/* printk macros */ 792 793#define em28xx_err(fmt, arg...) do {\ 794 printk(KERN_ERR fmt , ##arg); } while (0) 795 796#define em28xx_errdev(fmt, arg...) do {\ 797 printk(KERN_ERR "%s: "fmt,\ 798 dev->name , ##arg); } while (0) 799 800#define em28xx_info(fmt, arg...) do {\ 801 printk(KERN_INFO "%s: "fmt,\ 802 dev->name , ##arg); } while (0) 803#define em28xx_warn(fmt, arg...) do {\ 804 printk(KERN_WARNING "%s: "fmt,\ 805 dev->name , ##arg); } while (0) 806 807#endif 808