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 94 144 145 /* Limits minimum and default number of buffers */ 146 #define EM28XX_MIN_BUF 4 147 #define EM28XX_DEF_BUF 8 148 149 /*Limits the max URB message size */ 150 #define URB_MAX_CTRL_SIZE 80 151 152 /* Params for validated field */ 153 #define EM28XX_BOARD_NOT_VALIDATED 1 154 #define EM28XX_BOARD_VALIDATED 0 155 156 /* Params for em28xx_cmd() audio */ 157 #define EM28XX_START_AUDIO 1 158 #define EM28XX_STOP_AUDIO 0 159 160 /* maximum number of em28xx boards */ 161 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 162 163 /* maximum number of frames that can be queued */ 164 #define EM28XX_NUM_FRAMES 5 165 /* number of frames that get used for v4l2_read() */ 166 #define EM28XX_NUM_READ_FRAMES 2 167 168 /* number of buffers for isoc transfers */ 169 #define EM28XX_NUM_BUFS 5 170 #define EM28XX_DVB_NUM_BUFS 5 171 172 /* max number of I2C buses on em28xx devices */ 173 #define NUM_I2C_BUSES 2 174 175 /* isoc transfers: number of packets for each buffer 176 windows requests only 64 packets .. so we better do the same 177 this is what I found out for all alternate numbers there! 178 */ 179 #define EM28XX_NUM_ISOC_PACKETS 64 180 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 181 182 /* bulk transfers: transfer buffer size = packet size * packet multiplier 183 USB 2.0 spec says bulk packet size is always 512 bytes 184 */ 185 #define EM28XX_BULK_PACKET_MULTIPLIER 384 186 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 187 188 #define EM28XX_INTERLACED_DEFAULT 1 189 190 /* 191 * Time in msecs to wait for i2c xfers to finish. 192 * 35ms is the maximum time a SMBUS device could wait when 193 * clock stretching is used. As the transfer itself will take 194 * some time to happen, set it to 35 ms. 195 * 196 * Ok, I2C doesn't specify any limit. So, eventually, we may need 197 * to increase this timeout. 198 * 199 * FIXME: this assumes that an I2C message is not longer than 1ms. 200 * This is actually dependent on the I2C bus speed, although most 201 * devices use a 100kHz clock. So, this assumtion is true most of 202 * the time. 203 */ 204 #define EM28XX_I2C_XFER_TIMEOUT 36 205 206 /* time in msecs to wait for AC97 xfers to finish */ 207 #define EM28XX_AC97_XFER_TIMEOUT 100 208 209 /* max. number of button state polling addresses */ 210 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 211 212 enum em28xx_mode { 213 EM28XX_SUSPEND, 214 EM28XX_ANALOG_MODE, 215 EM28XX_DIGITAL_MODE, 216 }; 217 218 219 struct em28xx; 220 221 struct em28xx_usb_bufs { 222 /* max packet size of isoc transaction */ 223 int max_pkt_size; 224 225 /* number of packets in each buffer */ 226 int num_packets; 227 228 /* number of allocated urbs */ 229 int num_bufs; 230 231 /* urb for isoc/bulk transfers */ 232 struct urb **urb; 233 234 /* transfer buffers for isoc/bulk transfer */ 235 char **transfer_buffer; 236 }; 237 238 struct em28xx_usb_ctl { 239 /* isoc/bulk transfer buffers for analog mode */ 240 struct em28xx_usb_bufs analog_bufs; 241 242 /* isoc/bulk transfer buffers for digital mode */ 243 struct em28xx_usb_bufs digital_bufs; 244 245 /* Stores already requested buffers */ 246 struct em28xx_buffer *vid_buf; 247 struct em28xx_buffer *vbi_buf; 248 249 /* copy data from URB */ 250 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb); 251 252 }; 253 254 /* Struct to enumberate video formats */ 255 struct em28xx_fmt { 256 char *name; 257 u32 fourcc; /* v4l2 format id */ 258 int depth; 259 int reg; 260 }; 261 262 /* buffer for one video frame */ 263 struct em28xx_buffer { 264 /* common v4l buffer stuff -- must be first */ 265 struct vb2_buffer vb; 266 struct list_head list; 267 268 void *mem; 269 unsigned int length; 270 int top_field; 271 272 /* counter to control buffer fill */ 273 unsigned int pos; 274 /* NOTE; in interlaced mode, this value is reset to zero at 275 * the start of each new field (not frame !) */ 276 277 /* pointer to vmalloc memory address in vb */ 278 char *vb_buf; 279 }; 280 281 struct em28xx_dmaqueue { 282 struct list_head active; 283 284 wait_queue_head_t wq; 285 }; 286 287 /* inputs */ 288 289 #define MAX_EM28XX_INPUT 4 290 enum enum28xx_itype { 291 EM28XX_VMUX_COMPOSITE1 = 1, 292 EM28XX_VMUX_COMPOSITE2, 293 EM28XX_VMUX_COMPOSITE3, 294 EM28XX_VMUX_COMPOSITE4, 295 EM28XX_VMUX_SVIDEO, 296 EM28XX_VMUX_TELEVISION, 297 EM28XX_VMUX_CABLE, 298 EM28XX_VMUX_DVB, 299 EM28XX_VMUX_DEBUG, 300 EM28XX_RADIO, 301 }; 302 303 enum em28xx_ac97_mode { 304 EM28XX_NO_AC97 = 0, 305 EM28XX_AC97_EM202, 306 EM28XX_AC97_SIGMATEL, 307 EM28XX_AC97_OTHER, 308 }; 309 310 struct em28xx_audio_mode { 311 enum em28xx_ac97_mode ac97; 312 }; 313 314 enum em28xx_int_audio_type { 315 EM28XX_INT_AUDIO_NONE = 0, 316 EM28XX_INT_AUDIO_AC97, 317 EM28XX_INT_AUDIO_I2S, 318 }; 319 320 enum em28xx_usb_audio_type { 321 EM28XX_USB_AUDIO_NONE = 0, 322 EM28XX_USB_AUDIO_CLASS, 323 EM28XX_USB_AUDIO_VENDOR, 324 }; 325 326 /* em28xx has two audio inputs: tuner and line in. 327 However, on most devices, an auxiliary AC97 codec device is used. 328 The AC97 device may have several different inputs and outputs, 329 depending on their model. So, it is possible to use AC97 mixer to 330 address more than two different entries. 331 */ 332 enum em28xx_amux { 333 /* This is the only entry for em28xx tuner input */ 334 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 335 336 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 337 338 /* Some less-common mixer setups */ 339 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 340 EM28XX_AMUX_PHONE, 341 EM28XX_AMUX_MIC, 342 EM28XX_AMUX_CD, 343 EM28XX_AMUX_AUX, 344 EM28XX_AMUX_PCM_OUT, 345 }; 346 347 enum em28xx_aout { 348 /* AC97 outputs */ 349 EM28XX_AOUT_MASTER = 1 << 0, 350 EM28XX_AOUT_LINE = 1 << 1, 351 EM28XX_AOUT_MONO = 1 << 2, 352 EM28XX_AOUT_LFE = 1 << 3, 353 EM28XX_AOUT_SURR = 1 << 4, 354 355 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 356 EM28XX_AOUT_PCM_IN = 1 << 7, 357 358 /* Bits 10-8 are used to indicate the PCM IN record select */ 359 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 360 EM28XX_AOUT_PCM_CD = 1 << 8, 361 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 362 EM28XX_AOUT_PCM_AUX = 3 << 8, 363 EM28XX_AOUT_PCM_LINE = 4 << 8, 364 EM28XX_AOUT_PCM_STEREO = 5 << 8, 365 EM28XX_AOUT_PCM_MONO = 6 << 8, 366 EM28XX_AOUT_PCM_PHONE = 7 << 8, 367 }; 368 369 static inline int ac97_return_record_select(int a_out) 370 { 371 return (a_out & 0x700) >> 8; 372 } 373 374 struct em28xx_reg_seq { 375 int reg; 376 unsigned char val, mask; 377 int sleep; 378 }; 379 380 struct em28xx_input { 381 enum enum28xx_itype type; 382 unsigned int vmux; 383 enum em28xx_amux amux; 384 enum em28xx_aout aout; 385 struct em28xx_reg_seq *gpio; 386 }; 387 388 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 389 390 enum em28xx_decoder { 391 EM28XX_NODECODER = 0, 392 EM28XX_TVP5150, 393 EM28XX_SAA711X, 394 }; 395 396 enum em28xx_sensor { 397 EM28XX_NOSENSOR = 0, 398 EM28XX_MT9V011, 399 EM28XX_MT9M001, 400 EM28XX_MT9M111, 401 EM28XX_OV2640, 402 }; 403 404 enum em28xx_adecoder { 405 EM28XX_NOADECODER = 0, 406 EM28XX_TVAUDIO, 407 }; 408 409 enum em28xx_led_role { 410 EM28XX_LED_ANALOG_CAPTURING = 0, 411 EM28XX_LED_DIGITAL_CAPTURING, 412 EM28XX_LED_ILLUMINATION, 413 EM28XX_NUM_LED_ROLES, /* must be the last */ 414 }; 415 416 struct em28xx_led { 417 enum em28xx_led_role role; 418 u8 gpio_reg; 419 u8 gpio_mask; 420 bool inverted; 421 }; 422 423 enum em28xx_button_role { 424 EM28XX_BUTTON_SNAPSHOT = 0, 425 EM28XX_BUTTON_ILLUMINATION, 426 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 427 }; 428 429 struct em28xx_button { 430 enum em28xx_button_role role; 431 u8 reg_r; 432 u8 reg_clearing; 433 u8 mask; 434 bool inverted; 435 }; 436 437 struct em28xx_board { 438 char *name; 439 int vchannels; 440 int tuner_type; 441 int tuner_addr; 442 unsigned def_i2c_bus; /* Default I2C bus */ 443 444 /* i2c flags */ 445 unsigned int tda9887_conf; 446 447 /* GPIO sequences */ 448 struct em28xx_reg_seq *dvb_gpio; 449 struct em28xx_reg_seq *suspend_gpio; 450 struct em28xx_reg_seq *tuner_gpio; 451 struct em28xx_reg_seq *mute_gpio; 452 453 unsigned int is_em2800:1; 454 unsigned int has_msp34xx:1; 455 unsigned int mts_firmware:1; 456 unsigned int max_range_640_480:1; 457 unsigned int has_dvb:1; 458 unsigned int is_webcam:1; 459 unsigned int valid:1; 460 unsigned int has_ir_i2c:1; 461 462 unsigned char xclk, i2c_speed; 463 unsigned char radio_addr; 464 unsigned short tvaudio_addr; 465 466 enum em28xx_decoder decoder; 467 enum em28xx_adecoder adecoder; 468 469 struct em28xx_input input[MAX_EM28XX_INPUT]; 470 struct em28xx_input radio; 471 char *ir_codes; 472 473 /* LEDs that need to be controlled explicitly */ 474 struct em28xx_led *leds; 475 476 /* Buttons */ 477 struct em28xx_button *buttons; 478 }; 479 480 struct em28xx_eeprom { 481 u8 id[4]; /* 1a eb 67 95 */ 482 __le16 vendor_ID; 483 __le16 product_ID; 484 485 __le16 chip_conf; 486 487 __le16 board_conf; 488 489 __le16 string1, string2, string3; 490 491 u8 string_idx_table; 492 }; 493 494 #define EM28XX_CAPTURE_STREAM_EN 1 495 496 /* em28xx extensions */ 497 #define EM28XX_AUDIO 0x10 498 #define EM28XX_DVB 0x20 499 #define EM28XX_RC 0x30 500 #define EM28XX_V4L2 0x40 501 502 /* em28xx resource types (used for res_get/res_lock etc */ 503 #define EM28XX_RESOURCE_VIDEO 0x01 504 #define EM28XX_RESOURCE_VBI 0x02 505 506 struct em28xx_v4l2 { 507 struct kref ref; 508 struct em28xx *dev; 509 510 struct v4l2_device v4l2_dev; 511 struct v4l2_ctrl_handler ctrl_handler; 512 struct v4l2_clk *clk; 513 514 struct video_device *vdev; 515 struct video_device *vbi_dev; 516 struct video_device *radio_dev; 517 518 /* Videobuf2 */ 519 struct vb2_queue vb_vidq; 520 struct vb2_queue vb_vbiq; 521 struct mutex vb_queue_lock; 522 struct mutex vb_vbi_queue_lock; 523 524 u8 vinmode; 525 u8 vinctl; 526 527 /* Camera specific fields */ 528 int sensor_xres; 529 int sensor_yres; 530 int sensor_xtal; 531 532 int users; /* user count for exclusive use */ 533 int streaming_users; /* number of actively streaming users */ 534 535 u32 frequency; /* selected tuner frequency */ 536 537 struct em28xx_fmt *format; 538 v4l2_std_id norm; /* selected tv norm */ 539 540 /* Progressive/interlaced mode */ 541 bool progressive; 542 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 543 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 544 545 /* Frame properties */ 546 int width; /* current frame width */ 547 int height; /* current frame height */ 548 unsigned hscale; /* horizontal scale factor (see datasheet) */ 549 unsigned vscale; /* vertical scale factor (see datasheet) */ 550 unsigned int vbi_width; 551 unsigned int vbi_height; /* lines per field */ 552 553 /* Capture state tracking */ 554 int capture_type; 555 bool top_field; 556 int vbi_read; 557 unsigned int field_count; 558 }; 559 560 struct em28xx_audio { 561 char name[50]; 562 unsigned num_urb; 563 char **transfer_buffer; 564 struct urb **urb; 565 struct usb_device *udev; 566 unsigned int capture_transfer_done; 567 struct snd_pcm_substream *capture_pcm_substream; 568 569 unsigned int hwptr_done_capture; 570 struct snd_card *sndcard; 571 572 size_t period; 573 574 int users; 575 spinlock_t slock; 576 577 /* Controls streaming */ 578 struct work_struct wq_trigger; /* trigger to start/stop audio */ 579 atomic_t stream_started; /* stream should be running if true */ 580 }; 581 582 struct em28xx; 583 584 enum em28xx_i2c_algo_type { 585 EM28XX_I2C_ALGO_EM28XX = 0, 586 EM28XX_I2C_ALGO_EM2800, 587 EM28XX_I2C_ALGO_EM25XX_BUS_B, 588 }; 589 590 struct em28xx_i2c_bus { 591 struct em28xx *dev; 592 593 unsigned bus; 594 enum em28xx_i2c_algo_type algo_type; 595 }; 596 597 /* main device struct */ 598 struct em28xx { 599 struct kref ref; 600 601 /* Sub-module data */ 602 struct em28xx_v4l2 *v4l2; 603 struct em28xx_dvb *dvb; 604 struct em28xx_audio adev; 605 struct em28xx_IR *ir; 606 607 /* generic device properties */ 608 char name[30]; /* name (including minor) of the device */ 609 int model; /* index in the device_data struct */ 610 int devno; /* marks the number of this device */ 611 enum em28xx_chip_id chip_id; 612 613 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 614 unsigned char disconnected:1; /* device has been diconnected */ 615 unsigned int has_video:1; 616 unsigned int is_audio_only:1; 617 enum em28xx_int_audio_type int_audio_type; 618 enum em28xx_usb_audio_type usb_audio_type; 619 620 struct em28xx_board board; 621 622 enum em28xx_sensor em28xx_sensor; /* camera specific */ 623 624 /* Some older em28xx chips needs a waiting time after writing */ 625 unsigned int wait_after_write; 626 627 struct list_head devlist; 628 629 u32 i2s_speed; /* I2S speed for audio digital stream */ 630 631 struct em28xx_audio_mode audio_mode; 632 633 int tuner_type; /* type of the tuner */ 634 635 /* i2c i/o */ 636 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 637 struct i2c_client i2c_client[NUM_I2C_BUSES]; 638 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 639 640 unsigned char eeprom_addrwidth_16bit:1; 641 unsigned def_i2c_bus; /* Default I2C bus */ 642 unsigned cur_i2c_bus; /* Current I2C bus */ 643 struct rt_mutex i2c_bus_lock; 644 645 /* video for linux */ 646 unsigned int ctl_input; /* selected input */ 647 unsigned int ctl_ainput;/* selected audio input */ 648 unsigned int ctl_aoutput;/* selected audio output */ 649 int mute; 650 int volume; 651 652 unsigned long hash; /* eeprom hash - for boards with generic ID */ 653 unsigned long i2c_hash; /* i2c devicelist hash - 654 for boards with generic ID */ 655 656 struct work_struct request_module_wk; 657 658 /* locks */ 659 struct mutex lock; 660 struct mutex ctrl_urb_lock; /* protects urb_buf */ 661 662 /* resources in use */ 663 unsigned int resources; 664 665 /* eeprom content */ 666 u8 *eedata; 667 u16 eedata_len; 668 669 /* Isoc control struct */ 670 struct em28xx_dmaqueue vidq; 671 struct em28xx_dmaqueue vbiq; 672 struct em28xx_usb_ctl usb_ctl; 673 spinlock_t slock; 674 675 /* usb transfer */ 676 struct usb_device *udev; /* the usb device */ 677 u8 ifnum; /* number of the assigned usb interface */ 678 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 679 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 680 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 681 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 682 int alt; /* alternate setting */ 683 int max_pkt_size; /* max packet size of the selected ep at alt */ 684 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 685 URB buffer size definition */ 686 int num_alt; /* number of alternative settings */ 687 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 688 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 689 transfers for analog */ 690 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 691 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 692 selected DVB ep at dvb_alt */ 693 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 694 transfers for DVB */ 695 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 696 697 /* helper funcs that call usb_control_msg */ 698 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 699 char *buf, int len); 700 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 701 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 702 char *buf, int len); 703 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 704 char *buf, int len); 705 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 706 707 enum em28xx_mode mode; 708 709 /* Button state polling */ 710 struct delayed_work buttons_query_work; 711 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 712 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 713 u8 num_button_polling_addresses; 714 u16 button_polling_interval; /* [ms] */ 715 /* Snapshot button input device */ 716 char snapshot_button_path[30]; /* path of the input dev */ 717 struct input_dev *sbutton_input_dev; 718 }; 719 720 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 721 722 struct em28xx_ops { 723 struct list_head next; 724 char *name; 725 int id; 726 int (*init)(struct em28xx *); 727 int (*fini)(struct em28xx *); 728 int (*suspend)(struct em28xx *); 729 int (*resume)(struct em28xx *); 730 }; 731 732 /* Provided by em28xx-i2c.c */ 733 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 734 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 735 enum em28xx_i2c_algo_type algo_type); 736 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 737 738 /* Provided by em28xx-core.c */ 739 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 740 char *buf, int len); 741 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 742 int em28xx_read_reg(struct em28xx *dev, u16 reg); 743 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 744 int len); 745 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 746 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 747 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 748 u8 bitmask); 749 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 750 751 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 752 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 753 754 int em28xx_audio_analog_set(struct em28xx *dev); 755 int em28xx_audio_setup(struct em28xx *dev); 756 757 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 758 enum em28xx_led_role role); 759 int em28xx_capture_start(struct em28xx *dev, int start); 760 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 761 int num_bufs, int max_pkt_size, int packet_multiplier); 762 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 763 int xfer_bulk, 764 int num_bufs, int max_pkt_size, int packet_multiplier, 765 int (*urb_data_copy) 766 (struct em28xx *dev, struct urb *urb)); 767 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 768 void em28xx_stop_urbs(struct em28xx *dev); 769 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 770 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 771 int em28xx_register_extension(struct em28xx_ops *dev); 772 void em28xx_unregister_extension(struct em28xx_ops *dev); 773 void em28xx_init_extension(struct em28xx *dev); 774 void em28xx_close_extension(struct em28xx *dev); 775 int em28xx_suspend_extension(struct em28xx *dev); 776 int em28xx_resume_extension(struct em28xx *dev); 777 778 /* Provided by em28xx-cards.c */ 779 extern struct em28xx_board em28xx_boards[]; 780 extern struct usb_device_id em28xx_id_table[]; 781 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 782 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 783 void em28xx_free_device(struct kref *ref); 784 785 /* Provided by em28xx-camera.c */ 786 int em28xx_detect_sensor(struct em28xx *dev); 787 int em28xx_init_camera(struct em28xx *dev); 788 789 /* printk macros */ 790 791 #define em28xx_err(fmt, arg...) do {\ 792 printk(KERN_ERR fmt , ##arg); } while (0) 793 794 #define em28xx_errdev(fmt, arg...) do {\ 795 printk(KERN_ERR "%s: "fmt,\ 796 dev->name , ##arg); } while (0) 797 798 #define em28xx_info(fmt, arg...) do {\ 799 printk(KERN_INFO "%s: "fmt,\ 800 dev->name , ##arg); } while (0) 801 #define em28xx_warn(fmt, arg...) do {\ 802 printk(KERN_WARNING "%s: "fmt,\ 803 dev->name , ##arg); } while (0) 804 805 #endif 806