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 #define EM28178_BOARD_PLEX_PX_BCUD 98 149 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB 99 150 151 /* Limits minimum and default number of buffers */ 152 #define EM28XX_MIN_BUF 4 153 #define EM28XX_DEF_BUF 8 154 155 /*Limits the max URB message size */ 156 #define URB_MAX_CTRL_SIZE 80 157 158 /* Params for validated field */ 159 #define EM28XX_BOARD_NOT_VALIDATED 1 160 #define EM28XX_BOARD_VALIDATED 0 161 162 /* Params for em28xx_cmd() audio */ 163 #define EM28XX_START_AUDIO 1 164 #define EM28XX_STOP_AUDIO 0 165 166 /* maximum number of em28xx boards */ 167 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 168 169 /* maximum number of frames that can be queued */ 170 #define EM28XX_NUM_FRAMES 5 171 /* number of frames that get used for v4l2_read() */ 172 #define EM28XX_NUM_READ_FRAMES 2 173 174 /* number of buffers for isoc transfers */ 175 #define EM28XX_NUM_BUFS 5 176 #define EM28XX_DVB_NUM_BUFS 5 177 178 /* max number of I2C buses on em28xx devices */ 179 #define NUM_I2C_BUSES 2 180 181 /* isoc transfers: number of packets for each buffer 182 windows requests only 64 packets .. so we better do the same 183 this is what I found out for all alternate numbers there! 184 */ 185 #define EM28XX_NUM_ISOC_PACKETS 64 186 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 187 188 /* bulk transfers: transfer buffer size = packet size * packet multiplier 189 USB 2.0 spec says bulk packet size is always 512 bytes 190 */ 191 #define EM28XX_BULK_PACKET_MULTIPLIER 384 192 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 193 194 #define EM28XX_INTERLACED_DEFAULT 1 195 196 /* 197 * Time in msecs to wait for i2c xfers to finish. 198 * 35ms is the maximum time a SMBUS device could wait when 199 * clock stretching is used. As the transfer itself will take 200 * some time to happen, set it to 35 ms. 201 * 202 * Ok, I2C doesn't specify any limit. So, eventually, we may need 203 * to increase this timeout. 204 * 205 * FIXME: this assumes that an I2C message is not longer than 1ms. 206 * This is actually dependent on the I2C bus speed, although most 207 * devices use a 100kHz clock. So, this assumtion is true most of 208 * the time. 209 */ 210 #define EM28XX_I2C_XFER_TIMEOUT 36 211 212 /* time in msecs to wait for AC97 xfers to finish */ 213 #define EM28XX_AC97_XFER_TIMEOUT 100 214 215 /* max. number of button state polling addresses */ 216 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 217 218 enum em28xx_mode { 219 EM28XX_SUSPEND, 220 EM28XX_ANALOG_MODE, 221 EM28XX_DIGITAL_MODE, 222 }; 223 224 struct em28xx; 225 226 struct em28xx_usb_bufs { 227 /* max packet size of isoc transaction */ 228 int max_pkt_size; 229 230 /* number of packets in each buffer */ 231 int num_packets; 232 233 /* number of allocated urbs */ 234 int num_bufs; 235 236 /* urb for isoc/bulk transfers */ 237 struct urb **urb; 238 239 /* transfer buffers for isoc/bulk transfer */ 240 char **transfer_buffer; 241 }; 242 243 struct em28xx_usb_ctl { 244 /* isoc/bulk transfer buffers for analog mode */ 245 struct em28xx_usb_bufs analog_bufs; 246 247 /* isoc/bulk transfer buffers for digital mode */ 248 struct em28xx_usb_bufs digital_bufs; 249 250 /* Stores already requested buffers */ 251 struct em28xx_buffer *vid_buf; 252 struct em28xx_buffer *vbi_buf; 253 254 /* copy data from URB */ 255 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb); 256 257 }; 258 259 /* Struct to enumberate video formats */ 260 struct em28xx_fmt { 261 char *name; 262 u32 fourcc; /* v4l2 format id */ 263 int depth; 264 int reg; 265 }; 266 267 /* buffer for one video frame */ 268 struct em28xx_buffer { 269 /* common v4l buffer stuff -- must be first */ 270 struct vb2_v4l2_buffer vb; 271 struct list_head list; 272 273 void *mem; 274 unsigned int length; 275 int top_field; 276 277 /* counter to control buffer fill */ 278 unsigned int pos; 279 /* NOTE; in interlaced mode, this value is reset to zero at 280 * the start of each new field (not frame !) */ 281 282 /* pointer to vmalloc memory address in vb */ 283 char *vb_buf; 284 }; 285 286 struct em28xx_dmaqueue { 287 struct list_head active; 288 289 wait_queue_head_t wq; 290 }; 291 292 /* inputs */ 293 294 #define MAX_EM28XX_INPUT 4 295 enum enum28xx_itype { 296 EM28XX_VMUX_COMPOSITE = 1, 297 EM28XX_VMUX_SVIDEO, 298 EM28XX_VMUX_TELEVISION, 299 EM28XX_RADIO, 300 }; 301 302 enum em28xx_ac97_mode { 303 EM28XX_NO_AC97 = 0, 304 EM28XX_AC97_EM202, 305 EM28XX_AC97_SIGMATEL, 306 EM28XX_AC97_OTHER, 307 }; 308 309 struct em28xx_audio_mode { 310 enum em28xx_ac97_mode ac97; 311 }; 312 313 enum em28xx_int_audio_type { 314 EM28XX_INT_AUDIO_NONE = 0, 315 EM28XX_INT_AUDIO_AC97, 316 EM28XX_INT_AUDIO_I2S, 317 }; 318 319 enum em28xx_usb_audio_type { 320 EM28XX_USB_AUDIO_NONE = 0, 321 EM28XX_USB_AUDIO_CLASS, 322 EM28XX_USB_AUDIO_VENDOR, 323 }; 324 325 /* em28xx has two audio inputs: tuner and line in. 326 However, on most devices, an auxiliary AC97 codec device is used. 327 The AC97 device may have several different inputs and outputs, 328 depending on their model. So, it is possible to use AC97 mixer to 329 address more than two different entries. 330 */ 331 enum em28xx_amux { 332 /* This is the only entry for em28xx tuner input */ 333 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 334 335 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 336 337 /* Some less-common mixer setups */ 338 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 339 EM28XX_AMUX_PHONE, 340 EM28XX_AMUX_MIC, 341 EM28XX_AMUX_CD, 342 EM28XX_AMUX_AUX, 343 EM28XX_AMUX_PCM_OUT, 344 }; 345 346 enum em28xx_aout { 347 /* AC97 outputs */ 348 EM28XX_AOUT_MASTER = 1 << 0, 349 EM28XX_AOUT_LINE = 1 << 1, 350 EM28XX_AOUT_MONO = 1 << 2, 351 EM28XX_AOUT_LFE = 1 << 3, 352 EM28XX_AOUT_SURR = 1 << 4, 353 354 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 355 EM28XX_AOUT_PCM_IN = 1 << 7, 356 357 /* Bits 10-8 are used to indicate the PCM IN record select */ 358 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 359 EM28XX_AOUT_PCM_CD = 1 << 8, 360 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 361 EM28XX_AOUT_PCM_AUX = 3 << 8, 362 EM28XX_AOUT_PCM_LINE = 4 << 8, 363 EM28XX_AOUT_PCM_STEREO = 5 << 8, 364 EM28XX_AOUT_PCM_MONO = 6 << 8, 365 EM28XX_AOUT_PCM_PHONE = 7 << 8, 366 }; 367 368 static inline int ac97_return_record_select(int a_out) 369 { 370 return (a_out & 0x700) >> 8; 371 } 372 373 struct em28xx_reg_seq { 374 int reg; 375 unsigned char val, mask; 376 int sleep; 377 }; 378 379 struct em28xx_input { 380 enum enum28xx_itype type; 381 unsigned int vmux; 382 enum em28xx_amux amux; 383 enum em28xx_aout aout; 384 struct em28xx_reg_seq *gpio; 385 }; 386 387 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 388 389 enum em28xx_decoder { 390 EM28XX_NODECODER = 0, 391 EM28XX_TVP5150, 392 EM28XX_SAA711X, 393 }; 394 395 enum em28xx_sensor { 396 EM28XX_NOSENSOR = 0, 397 EM28XX_MT9V011, 398 EM28XX_MT9M001, 399 EM28XX_MT9M111, 400 EM28XX_OV2640, 401 }; 402 403 enum em28xx_adecoder { 404 EM28XX_NOADECODER = 0, 405 EM28XX_TVAUDIO, 406 }; 407 408 enum em28xx_led_role { 409 EM28XX_LED_ANALOG_CAPTURING = 0, 410 EM28XX_LED_DIGITAL_CAPTURING, 411 EM28XX_LED_DIGITAL_CAPTURING_TS2, 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 #ifdef CONFIG_MEDIA_CONTROLLER 560 struct media_pad video_pad, vbi_pad; 561 struct media_entity *decoder; 562 #endif 563 }; 564 565 struct em28xx_audio { 566 char name[50]; 567 unsigned num_urb; 568 char **transfer_buffer; 569 struct urb **urb; 570 struct usb_device *udev; 571 unsigned int capture_transfer_done; 572 struct snd_pcm_substream *capture_pcm_substream; 573 574 unsigned int hwptr_done_capture; 575 struct snd_card *sndcard; 576 577 size_t period; 578 579 int users; 580 spinlock_t slock; 581 582 /* Controls streaming */ 583 struct work_struct wq_trigger; /* trigger to start/stop audio */ 584 atomic_t stream_started; /* stream should be running if true */ 585 }; 586 587 struct em28xx; 588 589 enum em28xx_i2c_algo_type { 590 EM28XX_I2C_ALGO_EM28XX = 0, 591 EM28XX_I2C_ALGO_EM2800, 592 EM28XX_I2C_ALGO_EM25XX_BUS_B, 593 }; 594 595 struct em28xx_i2c_bus { 596 struct em28xx *dev; 597 598 unsigned bus; 599 enum em28xx_i2c_algo_type algo_type; 600 }; 601 602 /* main device struct */ 603 struct em28xx { 604 struct kref ref; 605 606 /* Sub-module data */ 607 struct em28xx_v4l2 *v4l2; 608 struct em28xx_dvb *dvb; 609 struct em28xx_audio adev; 610 struct em28xx_IR *ir; 611 612 /* generic device properties */ 613 char name[30]; /* name (including minor) of the device */ 614 int model; /* index in the device_data struct */ 615 int devno; /* marks the number of this device */ 616 enum em28xx_chip_id chip_id; 617 618 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 619 unsigned char disconnected:1; /* device has been diconnected */ 620 unsigned int has_video:1; 621 unsigned int is_audio_only:1; 622 enum em28xx_int_audio_type int_audio_type; 623 enum em28xx_usb_audio_type usb_audio_type; 624 625 struct em28xx_board board; 626 627 enum em28xx_sensor em28xx_sensor; /* camera specific */ 628 629 /* Some older em28xx chips needs a waiting time after writing */ 630 unsigned int wait_after_write; 631 632 struct list_head devlist; 633 634 u32 i2s_speed; /* I2S speed for audio digital stream */ 635 636 struct em28xx_audio_mode audio_mode; 637 638 int tuner_type; /* type of the tuner */ 639 640 /* i2c i/o */ 641 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 642 struct i2c_client i2c_client[NUM_I2C_BUSES]; 643 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 644 645 unsigned char eeprom_addrwidth_16bit:1; 646 unsigned def_i2c_bus; /* Default I2C bus */ 647 unsigned cur_i2c_bus; /* Current I2C bus */ 648 struct rt_mutex i2c_bus_lock; 649 650 /* video for linux */ 651 unsigned int ctl_input; /* selected input */ 652 unsigned int ctl_ainput;/* selected audio input */ 653 unsigned int ctl_aoutput;/* selected audio output */ 654 int mute; 655 int volume; 656 657 unsigned long hash; /* eeprom hash - for boards with generic ID */ 658 unsigned long i2c_hash; /* i2c devicelist hash - 659 for boards with generic ID */ 660 661 struct work_struct request_module_wk; 662 663 /* locks */ 664 struct mutex lock; 665 struct mutex ctrl_urb_lock; /* protects urb_buf */ 666 667 /* resources in use */ 668 unsigned int resources; 669 670 /* eeprom content */ 671 u8 *eedata; 672 u16 eedata_len; 673 674 /* Isoc control struct */ 675 struct em28xx_dmaqueue vidq; 676 struct em28xx_dmaqueue vbiq; 677 struct em28xx_usb_ctl usb_ctl; 678 spinlock_t slock; 679 680 /* usb transfer */ 681 struct usb_device *udev; /* the usb device */ 682 u8 ifnum; /* number of the assigned usb interface */ 683 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 684 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 685 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 686 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 687 int alt; /* alternate setting */ 688 int max_pkt_size; /* max packet size of the selected ep at alt */ 689 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 690 URB buffer size definition */ 691 int num_alt; /* number of alternative settings */ 692 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 693 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 694 transfers for analog */ 695 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 696 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 697 selected DVB ep at dvb_alt */ 698 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 699 transfers for DVB */ 700 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 701 702 /* helper funcs that call usb_control_msg */ 703 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, 704 char *buf, int len); 705 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); 706 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, 707 char *buf, int len); 708 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, 709 char *buf, int len); 710 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); 711 712 enum em28xx_mode mode; 713 714 /* Button state polling */ 715 struct delayed_work buttons_query_work; 716 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 717 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 718 u8 num_button_polling_addresses; 719 u16 button_polling_interval; /* [ms] */ 720 /* Snapshot button input device */ 721 char snapshot_button_path[30]; /* path of the input dev */ 722 struct input_dev *sbutton_input_dev; 723 724 #ifdef CONFIG_MEDIA_CONTROLLER 725 struct media_device *media_dev; 726 struct media_entity input_ent[MAX_EM28XX_INPUT]; 727 struct media_pad input_pad[MAX_EM28XX_INPUT]; 728 #endif 729 }; 730 731 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 732 733 struct em28xx_ops { 734 struct list_head next; 735 char *name; 736 int id; 737 int (*init)(struct em28xx *); 738 int (*fini)(struct em28xx *); 739 int (*suspend)(struct em28xx *); 740 int (*resume)(struct em28xx *); 741 }; 742 743 /* Provided by em28xx-i2c.c */ 744 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 745 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 746 enum em28xx_i2c_algo_type algo_type); 747 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 748 749 /* Provided by em28xx-core.c */ 750 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 751 char *buf, int len); 752 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 753 int em28xx_read_reg(struct em28xx *dev, u16 reg); 754 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 755 int len); 756 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 757 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 758 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 759 u8 bitmask); 760 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 761 762 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 763 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 764 765 int em28xx_audio_analog_set(struct em28xx *dev); 766 int em28xx_audio_setup(struct em28xx *dev); 767 768 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 769 enum em28xx_led_role role); 770 int em28xx_capture_start(struct em28xx *dev, int start); 771 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 772 int num_bufs, int max_pkt_size, int packet_multiplier); 773 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 774 int xfer_bulk, 775 int num_bufs, int max_pkt_size, int packet_multiplier, 776 int (*urb_data_copy) 777 (struct em28xx *dev, struct urb *urb)); 778 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 779 void em28xx_stop_urbs(struct em28xx *dev); 780 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 781 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 782 int em28xx_register_extension(struct em28xx_ops *dev); 783 void em28xx_unregister_extension(struct em28xx_ops *dev); 784 void em28xx_init_extension(struct em28xx *dev); 785 void em28xx_close_extension(struct em28xx *dev); 786 int em28xx_suspend_extension(struct em28xx *dev); 787 int em28xx_resume_extension(struct em28xx *dev); 788 789 /* Provided by em28xx-cards.c */ 790 extern struct em28xx_board em28xx_boards[]; 791 extern struct usb_device_id em28xx_id_table[]; 792 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 793 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 794 void em28xx_free_device(struct kref *ref); 795 796 /* Provided by em28xx-camera.c */ 797 int em28xx_detect_sensor(struct em28xx *dev); 798 int em28xx_init_camera(struct em28xx *dev); 799 800 /* printk macros */ 801 802 #define em28xx_err(fmt, arg...) do {\ 803 printk(KERN_ERR fmt , ##arg); } while (0) 804 805 #define em28xx_errdev(fmt, arg...) do {\ 806 printk(KERN_ERR "%s: "fmt,\ 807 dev->name , ##arg); } while (0) 808 809 #define em28xx_info(fmt, arg...) do {\ 810 printk(KERN_INFO "%s: "fmt,\ 811 dev->name , ##arg); } while (0) 812 #define em28xx_warn(fmt, arg...) do {\ 813 printk(KERN_WARNING "%s: "fmt,\ 814 dev->name , ##arg); } while (0) 815 816 #endif 817