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 "0.2.2" 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-v4l2.h> 39 #include <media/videobuf2-vmalloc.h> 40 #include <media/v4l2-device.h> 41 #include <media/v4l2-ctrls.h> 42 #include <media/v4l2-fh.h> 43 #include <media/i2c/ir-kbd-i2c.h> 44 #include <media/rc-core.h> 45 #include "tuner-xc2028.h" 46 #include "xc5000.h" 47 #include "em28xx-reg.h" 48 49 /* Boards supported by driver */ 50 #define EM2800_BOARD_UNKNOWN 0 51 #define EM2820_BOARD_UNKNOWN 1 52 #define EM2820_BOARD_TERRATEC_CINERGY_250 2 53 #define EM2820_BOARD_PINNACLE_USB_2 3 54 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4 55 #define EM2820_BOARD_MSI_VOX_USB_2 5 56 #define EM2800_BOARD_TERRATEC_CINERGY_200 6 57 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7 58 #define EM2800_BOARD_KWORLD_USB2800 8 59 #define EM2820_BOARD_PINNACLE_DVC_90 9 60 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10 61 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11 62 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12 63 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13 64 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14 65 #define EM2800_BOARD_VGEAR_POCKETTV 15 66 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16 67 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 68 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 69 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19 70 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20 71 #define EM2800_BOARD_GRABBEEX_USB2800 21 72 #define EM2750_BOARD_UNKNOWN 22 73 #define EM2750_BOARD_DLCW_130 23 74 #define EM2820_BOARD_DLINK_USB_TV 24 75 #define EM2820_BOARD_GADMEI_UTV310 25 76 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26 77 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27 78 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28 79 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29 80 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30 81 #define EM2821_BOARD_USBGEAR_VD204 31 82 #define EM2821_BOARD_SUPERCOMP_USB_2 32 83 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33 84 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34 85 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35 86 #define EM2860_BOARD_NETGMBH_CAM 36 87 #define EM2860_BOARD_GADMEI_UTV330 37 88 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38 89 #define EM2861_BOARD_KWORLD_PVRTV_300U 39 90 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40 91 #define EM2870_BOARD_KWORLD_350U 41 92 #define EM2870_BOARD_KWORLD_355U 42 93 #define EM2870_BOARD_TERRATEC_XS 43 94 #define EM2870_BOARD_TERRATEC_XS_MT2060 44 95 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45 96 #define EM2870_BOARD_COMPRO_VIDEOMATE 46 97 #define EM2880_BOARD_KWORLD_DVB_305U 47 98 #define EM2880_BOARD_KWORLD_DVB_310U 48 99 #define EM2880_BOARD_MSI_DIGIVOX_AD 49 100 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50 101 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51 102 #define EM2881_BOARD_DNT_DA2_HYBRID 52 103 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53 104 #define EM2882_BOARD_KWORLD_VS_DVBT 54 105 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55 106 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56 107 #define EM2883_BOARD_KWORLD_HYBRID_330U 57 108 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58 109 #define EM2874_BOARD_PCTV_HD_MINI_80E 59 110 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60 111 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61 112 #define EM2820_BOARD_GADMEI_TVR200 62 113 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63 114 #define EM2860_BOARD_EASYCAP 64 115 #define EM2820_BOARD_IODATA_GVMVP_SZ 65 116 #define EM2880_BOARD_EMPIRE_DUAL_TV 66 117 #define EM2860_BOARD_TERRATEC_GRABBY 67 118 #define EM2860_BOARD_TERRATEC_AV350 68 119 #define EM2882_BOARD_KWORLD_ATSC_315U 69 120 #define EM2882_BOARD_EVGA_INDTUBE 70 121 #define EM2820_BOARD_SILVERCREST_WEBCAM 71 122 #define EM2861_BOARD_GADMEI_UTV330PLUS 72 123 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73 124 #define EM2800_BOARD_VC211A 74 125 #define EM2882_BOARD_DIKOM_DK300 75 126 #define EM2870_BOARD_KWORLD_A340 76 127 #define EM2874_BOARD_LEADERSHIP_ISDBT 77 128 #define EM28174_BOARD_PCTV_290E 78 129 #define EM2884_BOARD_TERRATEC_H5 79 130 #define EM28174_BOARD_PCTV_460E 80 131 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81 132 #define EM2884_BOARD_CINERGY_HTC_STICK 82 133 #define EM2860_BOARD_HT_VIDBOX_NW03 83 134 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84 135 #define EM2884_BOARD_PCTV_510E 85 136 #define EM2884_BOARD_PCTV_520E 86 137 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87 138 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88 139 #define EM2874_BOARD_DELOCK_61959 89 140 #define EM2874_BOARD_KWORLD_UB435Q_V2 90 141 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91 142 #define EM28178_BOARD_PCTV_461E 92 143 #define EM2874_BOARD_KWORLD_UB435Q_V3 93 144 #define EM28178_BOARD_PCTV_292E 94 145 #define EM2861_BOARD_LEADTEK_VC100 95 146 #define EM28178_BOARD_TERRATEC_T2_STICK_HD 96 147 #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008 97 148 149 /* Limits minimum and default number of buffers */ 150 #define EM28XX_MIN_BUF 4 151 #define EM28XX_DEF_BUF 8 152 153 /*Limits the max URB message size */ 154 #define URB_MAX_CTRL_SIZE 80 155 156 /* Params for validated field */ 157 #define EM28XX_BOARD_NOT_VALIDATED 1 158 #define EM28XX_BOARD_VALIDATED 0 159 160 /* Params for em28xx_cmd() audio */ 161 #define EM28XX_START_AUDIO 1 162 #define EM28XX_STOP_AUDIO 0 163 164 /* maximum number of em28xx boards */ 165 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 166 167 /* maximum number of frames that can be queued */ 168 #define EM28XX_NUM_FRAMES 5 169 /* number of frames that get used for v4l2_read() */ 170 #define EM28XX_NUM_READ_FRAMES 2 171 172 /* number of buffers for isoc transfers */ 173 #define EM28XX_NUM_BUFS 5 174 #define EM28XX_DVB_NUM_BUFS 5 175 176 /* max number of I2C buses on em28xx devices */ 177 #define NUM_I2C_BUSES 2 178 179 /* isoc transfers: number of packets for each buffer 180 windows requests only 64 packets .. so we better do the same 181 this is what I found out for all alternate numbers there! 182 */ 183 #define EM28XX_NUM_ISOC_PACKETS 64 184 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 185 186 /* bulk transfers: transfer buffer size = packet size * packet multiplier 187 USB 2.0 spec says bulk packet size is always 512 bytes 188 */ 189 #define EM28XX_BULK_PACKET_MULTIPLIER 384 190 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 191 192 #define EM28XX_INTERLACED_DEFAULT 1 193 194 /* 195 * Time in msecs to wait for i2c xfers to finish. 196 * 35ms is the maximum time a SMBUS device could wait when 197 * clock stretching is used. As the transfer itself will take 198 * some time to happen, set it to 35 ms. 199 * 200 * Ok, I2C doesn't specify any limit. So, eventually, we may need 201 * to increase this timeout. 202 * 203 * FIXME: this assumes that an I2C message is not longer than 1ms. 204 * This is actually dependent on the I2C bus speed, although most 205 * devices use a 100kHz clock. So, this assumtion is true most of 206 * the time. 207 */ 208 #define EM28XX_I2C_XFER_TIMEOUT 36 209 210 /* time in msecs to wait for AC97 xfers to finish */ 211 #define EM28XX_AC97_XFER_TIMEOUT 100 212 213 /* max. number of button state polling addresses */ 214 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 215 216 enum em28xx_mode { 217 EM28XX_SUSPEND, 218 EM28XX_ANALOG_MODE, 219 EM28XX_DIGITAL_MODE, 220 }; 221 222 struct em28xx; 223 224 struct em28xx_usb_bufs { 225 /* max packet size of isoc transaction */ 226 int max_pkt_size; 227 228 /* number of packets in each buffer */ 229 int num_packets; 230 231 /* number of allocated urbs */ 232 int num_bufs; 233 234 /* urb for isoc/bulk transfers */ 235 struct urb **urb; 236 237 /* transfer buffers for isoc/bulk transfer */ 238 char **transfer_buffer; 239 }; 240 241 struct em28xx_usb_ctl { 242 /* isoc/bulk transfer buffers for analog mode */ 243 struct em28xx_usb_bufs analog_bufs; 244 245 /* isoc/bulk transfer buffers for digital mode */ 246 struct em28xx_usb_bufs digital_bufs; 247 248 /* Stores already requested buffers */ 249 struct em28xx_buffer *vid_buf; 250 struct em28xx_buffer *vbi_buf; 251 252 /* copy data from URB */ 253 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb); 254 255 }; 256 257 /* Struct to enumberate video formats */ 258 struct em28xx_fmt { 259 char *name; 260 u32 fourcc; /* v4l2 format id */ 261 int depth; 262 int reg; 263 }; 264 265 /* buffer for one video frame */ 266 struct em28xx_buffer { 267 /* common v4l buffer stuff -- must be first */ 268 struct vb2_v4l2_buffer vb; 269 struct list_head list; 270 271 void *mem; 272 unsigned int length; 273 int top_field; 274 275 /* counter to control buffer fill */ 276 unsigned int pos; 277 /* NOTE; in interlaced mode, this value is reset to zero at 278 * the start of each new field (not frame !) */ 279 280 /* pointer to vmalloc memory address in vb */ 281 char *vb_buf; 282 }; 283 284 struct em28xx_dmaqueue { 285 struct list_head active; 286 287 wait_queue_head_t wq; 288 }; 289 290 /* inputs */ 291 292 #define MAX_EM28XX_INPUT 4 293 enum enum28xx_itype { 294 EM28XX_VMUX_COMPOSITE = 1, 295 EM28XX_VMUX_SVIDEO, 296 EM28XX_VMUX_TELEVISION, 297 EM28XX_RADIO, 298 }; 299 300 enum em28xx_ac97_mode { 301 EM28XX_NO_AC97 = 0, 302 EM28XX_AC97_EM202, 303 EM28XX_AC97_SIGMATEL, 304 EM28XX_AC97_OTHER, 305 }; 306 307 struct em28xx_audio_mode { 308 enum em28xx_ac97_mode ac97; 309 }; 310 311 enum em28xx_int_audio_type { 312 EM28XX_INT_AUDIO_NONE = 0, 313 EM28XX_INT_AUDIO_AC97, 314 EM28XX_INT_AUDIO_I2S, 315 }; 316 317 enum em28xx_usb_audio_type { 318 EM28XX_USB_AUDIO_NONE = 0, 319 EM28XX_USB_AUDIO_CLASS, 320 EM28XX_USB_AUDIO_VENDOR, 321 }; 322 323 /* em28xx has two audio inputs: tuner and line in. 324 However, on most devices, an auxiliary AC97 codec device is used. 325 The AC97 device may have several different inputs and outputs, 326 depending on their model. So, it is possible to use AC97 mixer to 327 address more than two different entries. 328 */ 329 enum em28xx_amux { 330 /* This is the only entry for em28xx tuner input */ 331 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 332 333 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 334 335 /* Some less-common mixer setups */ 336 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 337 EM28XX_AMUX_PHONE, 338 EM28XX_AMUX_MIC, 339 EM28XX_AMUX_CD, 340 EM28XX_AMUX_AUX, 341 EM28XX_AMUX_PCM_OUT, 342 }; 343 344 enum em28xx_aout { 345 /* AC97 outputs */ 346 EM28XX_AOUT_MASTER = 1 << 0, 347 EM28XX_AOUT_LINE = 1 << 1, 348 EM28XX_AOUT_MONO = 1 << 2, 349 EM28XX_AOUT_LFE = 1 << 3, 350 EM28XX_AOUT_SURR = 1 << 4, 351 352 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 353 EM28XX_AOUT_PCM_IN = 1 << 7, 354 355 /* Bits 10-8 are used to indicate the PCM IN record select */ 356 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 357 EM28XX_AOUT_PCM_CD = 1 << 8, 358 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 359 EM28XX_AOUT_PCM_AUX = 3 << 8, 360 EM28XX_AOUT_PCM_LINE = 4 << 8, 361 EM28XX_AOUT_PCM_STEREO = 5 << 8, 362 EM28XX_AOUT_PCM_MONO = 6 << 8, 363 EM28XX_AOUT_PCM_PHONE = 7 << 8, 364 }; 365 366 static inline int ac97_return_record_select(int a_out) 367 { 368 return (a_out & 0x700) >> 8; 369 } 370 371 struct em28xx_reg_seq { 372 int reg; 373 unsigned char val, mask; 374 int sleep; 375 }; 376 377 struct em28xx_input { 378 enum enum28xx_itype type; 379 unsigned int vmux; 380 enum em28xx_amux amux; 381 enum em28xx_aout aout; 382 struct em28xx_reg_seq *gpio; 383 }; 384 385 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 386 387 enum em28xx_decoder { 388 EM28XX_NODECODER = 0, 389 EM28XX_TVP5150, 390 EM28XX_SAA711X, 391 }; 392 393 enum em28xx_sensor { 394 EM28XX_NOSENSOR = 0, 395 EM28XX_MT9V011, 396 EM28XX_MT9M001, 397 EM28XX_MT9M111, 398 EM28XX_OV2640, 399 }; 400 401 enum em28xx_adecoder { 402 EM28XX_NOADECODER = 0, 403 EM28XX_TVAUDIO, 404 }; 405 406 enum em28xx_led_role { 407 EM28XX_LED_ANALOG_CAPTURING = 0, 408 EM28XX_LED_DIGITAL_CAPTURING, 409 EM28XX_LED_ILLUMINATION, 410 EM28XX_NUM_LED_ROLES, /* must be the last */ 411 }; 412 413 struct em28xx_led { 414 enum em28xx_led_role role; 415 u8 gpio_reg; 416 u8 gpio_mask; 417 bool inverted; 418 }; 419 420 enum em28xx_button_role { 421 EM28XX_BUTTON_SNAPSHOT = 0, 422 EM28XX_BUTTON_ILLUMINATION, 423 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 424 }; 425 426 struct em28xx_button { 427 enum em28xx_button_role role; 428 u8 reg_r; 429 u8 reg_clearing; 430 u8 mask; 431 bool inverted; 432 }; 433 434 struct em28xx_board { 435 char *name; 436 int vchannels; 437 int tuner_type; 438 int tuner_addr; 439 unsigned def_i2c_bus; /* Default I2C bus */ 440 441 /* i2c flags */ 442 unsigned int tda9887_conf; 443 444 /* GPIO sequences */ 445 struct em28xx_reg_seq *dvb_gpio; 446 struct em28xx_reg_seq *suspend_gpio; 447 struct em28xx_reg_seq *tuner_gpio; 448 struct em28xx_reg_seq *mute_gpio; 449 450 unsigned int is_em2800:1; 451 unsigned int has_msp34xx:1; 452 unsigned int mts_firmware:1; 453 unsigned int max_range_640_480:1; 454 unsigned int has_dvb:1; 455 unsigned int is_webcam:1; 456 unsigned int valid:1; 457 unsigned int has_ir_i2c:1; 458 459 unsigned char xclk, i2c_speed; 460 unsigned char radio_addr; 461 unsigned short tvaudio_addr; 462 463 enum em28xx_decoder decoder; 464 enum em28xx_adecoder adecoder; 465 466 struct em28xx_input input[MAX_EM28XX_INPUT]; 467 struct em28xx_input radio; 468 char *ir_codes; 469 470 /* LEDs that need to be controlled explicitly */ 471 struct em28xx_led *leds; 472 473 /* Buttons */ 474 struct em28xx_button *buttons; 475 }; 476 477 struct em28xx_eeprom { 478 u8 id[4]; /* 1a eb 67 95 */ 479 __le16 vendor_ID; 480 __le16 product_ID; 481 482 __le16 chip_conf; 483 484 __le16 board_conf; 485 486 __le16 string1, string2, string3; 487 488 u8 string_idx_table; 489 }; 490 491 #define EM28XX_CAPTURE_STREAM_EN 1 492 493 /* em28xx extensions */ 494 #define EM28XX_AUDIO 0x10 495 #define EM28XX_DVB 0x20 496 #define EM28XX_RC 0x30 497 #define EM28XX_V4L2 0x40 498 499 /* em28xx resource types (used for res_get/res_lock etc */ 500 #define EM28XX_RESOURCE_VIDEO 0x01 501 #define EM28XX_RESOURCE_VBI 0x02 502 503 struct em28xx_v4l2 { 504 struct kref ref; 505 struct em28xx *dev; 506 507 struct v4l2_device v4l2_dev; 508 struct v4l2_ctrl_handler ctrl_handler; 509 struct v4l2_clk *clk; 510 511 struct video_device vdev; 512 struct video_device vbi_dev; 513 struct video_device radio_dev; 514 515 /* Videobuf2 */ 516 struct vb2_queue vb_vidq; 517 struct vb2_queue vb_vbiq; 518 struct mutex vb_queue_lock; 519 struct mutex vb_vbi_queue_lock; 520 521 u8 vinmode; 522 u8 vinctl; 523 524 /* Camera specific fields */ 525 int sensor_xres; 526 int sensor_yres; 527 int sensor_xtal; 528 529 int users; /* user count for exclusive use */ 530 int streaming_users; /* number of actively streaming users */ 531 532 u32 frequency; /* selected tuner frequency */ 533 534 struct em28xx_fmt *format; 535 v4l2_std_id norm; /* selected tv norm */ 536 537 /* Progressive/interlaced mode */ 538 bool progressive; 539 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 540 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 541 542 /* Frame properties */ 543 int width; /* current frame width */ 544 int height; /* current frame height */ 545 unsigned hscale; /* horizontal scale factor (see datasheet) */ 546 unsigned vscale; /* vertical scale factor (see datasheet) */ 547 unsigned int vbi_width; 548 unsigned int vbi_height; /* lines per field */ 549 550 /* Capture state tracking */ 551 int capture_type; 552 bool top_field; 553 int vbi_read; 554 unsigned int field_count; 555 556 #ifdef CONFIG_MEDIA_CONTROLLER 557 struct media_pad video_pad, vbi_pad; 558 struct media_entity *decoder; 559 #endif 560 }; 561 562 struct 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 }; 583 584 struct em28xx; 585 586 enum em28xx_i2c_algo_type { 587 EM28XX_I2C_ALGO_EM28XX = 0, 588 EM28XX_I2C_ALGO_EM2800, 589 EM28XX_I2C_ALGO_EM25XX_BUS_B, 590 }; 591 592 struct 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 */ 600 struct 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 #ifdef CONFIG_MEDIA_CONTROLLER 722 struct media_device *media_dev; 723 struct media_entity input_ent[MAX_EM28XX_INPUT]; 724 struct media_pad input_pad[MAX_EM28XX_INPUT]; 725 #endif 726 }; 727 728 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 729 730 struct em28xx_ops { 731 struct list_head next; 732 char *name; 733 int id; 734 int (*init)(struct em28xx *); 735 int (*fini)(struct em28xx *); 736 int (*suspend)(struct em28xx *); 737 int (*resume)(struct em28xx *); 738 }; 739 740 /* Provided by em28xx-i2c.c */ 741 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 742 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 743 enum em28xx_i2c_algo_type algo_type); 744 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 745 746 /* Provided by em28xx-core.c */ 747 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 748 char *buf, int len); 749 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 750 int em28xx_read_reg(struct em28xx *dev, u16 reg); 751 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 752 int len); 753 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 754 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 755 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 756 u8 bitmask); 757 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 758 759 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 760 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 761 762 int em28xx_audio_analog_set(struct em28xx *dev); 763 int em28xx_audio_setup(struct em28xx *dev); 764 765 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 766 enum em28xx_led_role role); 767 int em28xx_capture_start(struct em28xx *dev, int start); 768 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 769 int num_bufs, int max_pkt_size, int packet_multiplier); 770 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 771 int xfer_bulk, 772 int num_bufs, int max_pkt_size, int packet_multiplier, 773 int (*urb_data_copy) 774 (struct em28xx *dev, struct urb *urb)); 775 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 776 void em28xx_stop_urbs(struct em28xx *dev); 777 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 778 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 779 int em28xx_register_extension(struct em28xx_ops *dev); 780 void em28xx_unregister_extension(struct em28xx_ops *dev); 781 void em28xx_init_extension(struct em28xx *dev); 782 void em28xx_close_extension(struct em28xx *dev); 783 int em28xx_suspend_extension(struct em28xx *dev); 784 int em28xx_resume_extension(struct em28xx *dev); 785 786 /* Provided by em28xx-cards.c */ 787 extern struct em28xx_board em28xx_boards[]; 788 extern struct usb_device_id em28xx_id_table[]; 789 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 790 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 791 void em28xx_free_device(struct kref *ref); 792 793 /* Provided by em28xx-camera.c */ 794 int em28xx_detect_sensor(struct em28xx *dev); 795 int em28xx_init_camera(struct em28xx *dev); 796 797 /* printk macros */ 798 799 #define em28xx_err(fmt, arg...) do {\ 800 printk(KERN_ERR fmt , ##arg); } while (0) 801 802 #define em28xx_errdev(fmt, arg...) do {\ 803 printk(KERN_ERR "%s: "fmt,\ 804 dev->name , ##arg); } while (0) 805 806 #define em28xx_info(fmt, arg...) do {\ 807 printk(KERN_INFO "%s: "fmt,\ 808 dev->name , ##arg); } while (0) 809 #define em28xx_warn(fmt, arg...) do {\ 810 printk(KERN_WARNING "%s: "fmt,\ 811 dev->name , ##arg); } while (0) 812 813 #endif 814