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-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/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_COMPOSITE1 = 1, 295 EM28XX_VMUX_COMPOSITE2, 296 EM28XX_VMUX_COMPOSITE3, 297 EM28XX_VMUX_COMPOSITE4, 298 EM28XX_VMUX_SVIDEO, 299 EM28XX_VMUX_TELEVISION, 300 EM28XX_VMUX_CABLE, 301 EM28XX_VMUX_DVB, 302 EM28XX_VMUX_DEBUG, 303 EM28XX_RADIO, 304 }; 305 306 enum em28xx_ac97_mode { 307 EM28XX_NO_AC97 = 0, 308 EM28XX_AC97_EM202, 309 EM28XX_AC97_SIGMATEL, 310 EM28XX_AC97_OTHER, 311 }; 312 313 struct em28xx_audio_mode { 314 enum em28xx_ac97_mode ac97; 315 }; 316 317 enum em28xx_int_audio_type { 318 EM28XX_INT_AUDIO_NONE = 0, 319 EM28XX_INT_AUDIO_AC97, 320 EM28XX_INT_AUDIO_I2S, 321 }; 322 323 enum em28xx_usb_audio_type { 324 EM28XX_USB_AUDIO_NONE = 0, 325 EM28XX_USB_AUDIO_CLASS, 326 EM28XX_USB_AUDIO_VENDOR, 327 }; 328 329 /* em28xx has two audio inputs: tuner and line in. 330 However, on most devices, an auxiliary AC97 codec device is used. 331 The AC97 device may have several different inputs and outputs, 332 depending on their model. So, it is possible to use AC97 mixer to 333 address more than two different entries. 334 */ 335 enum em28xx_amux { 336 /* This is the only entry for em28xx tuner input */ 337 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 338 339 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 340 341 /* Some less-common mixer setups */ 342 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 343 EM28XX_AMUX_PHONE, 344 EM28XX_AMUX_MIC, 345 EM28XX_AMUX_CD, 346 EM28XX_AMUX_AUX, 347 EM28XX_AMUX_PCM_OUT, 348 }; 349 350 enum em28xx_aout { 351 /* AC97 outputs */ 352 EM28XX_AOUT_MASTER = 1 << 0, 353 EM28XX_AOUT_LINE = 1 << 1, 354 EM28XX_AOUT_MONO = 1 << 2, 355 EM28XX_AOUT_LFE = 1 << 3, 356 EM28XX_AOUT_SURR = 1 << 4, 357 358 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 359 EM28XX_AOUT_PCM_IN = 1 << 7, 360 361 /* Bits 10-8 are used to indicate the PCM IN record select */ 362 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 363 EM28XX_AOUT_PCM_CD = 1 << 8, 364 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 365 EM28XX_AOUT_PCM_AUX = 3 << 8, 366 EM28XX_AOUT_PCM_LINE = 4 << 8, 367 EM28XX_AOUT_PCM_STEREO = 5 << 8, 368 EM28XX_AOUT_PCM_MONO = 6 << 8, 369 EM28XX_AOUT_PCM_PHONE = 7 << 8, 370 }; 371 372 static inline int ac97_return_record_select(int a_out) 373 { 374 return (a_out & 0x700) >> 8; 375 } 376 377 struct em28xx_reg_seq { 378 int reg; 379 unsigned char val, mask; 380 int sleep; 381 }; 382 383 struct em28xx_input { 384 enum enum28xx_itype type; 385 unsigned int vmux; 386 enum em28xx_amux amux; 387 enum em28xx_aout aout; 388 struct em28xx_reg_seq *gpio; 389 }; 390 391 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 392 393 enum em28xx_decoder { 394 EM28XX_NODECODER = 0, 395 EM28XX_TVP5150, 396 EM28XX_SAA711X, 397 }; 398 399 enum em28xx_sensor { 400 EM28XX_NOSENSOR = 0, 401 EM28XX_MT9V011, 402 EM28XX_MT9M001, 403 EM28XX_MT9M111, 404 EM28XX_OV2640, 405 }; 406 407 enum em28xx_adecoder { 408 EM28XX_NOADECODER = 0, 409 EM28XX_TVAUDIO, 410 }; 411 412 enum em28xx_led_role { 413 EM28XX_LED_ANALOG_CAPTURING = 0, 414 EM28XX_LED_DIGITAL_CAPTURING, 415 EM28XX_LED_ILLUMINATION, 416 EM28XX_NUM_LED_ROLES, /* must be the last */ 417 }; 418 419 struct em28xx_led { 420 enum em28xx_led_role role; 421 u8 gpio_reg; 422 u8 gpio_mask; 423 bool inverted; 424 }; 425 426 enum em28xx_button_role { 427 EM28XX_BUTTON_SNAPSHOT = 0, 428 EM28XX_BUTTON_ILLUMINATION, 429 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 430 }; 431 432 struct em28xx_button { 433 enum em28xx_button_role role; 434 u8 reg_r; 435 u8 reg_clearing; 436 u8 mask; 437 bool inverted; 438 }; 439 440 struct em28xx_board { 441 char *name; 442 int vchannels; 443 int tuner_type; 444 int tuner_addr; 445 unsigned def_i2c_bus; /* Default I2C bus */ 446 447 /* i2c flags */ 448 unsigned int tda9887_conf; 449 450 /* GPIO sequences */ 451 struct em28xx_reg_seq *dvb_gpio; 452 struct em28xx_reg_seq *suspend_gpio; 453 struct em28xx_reg_seq *tuner_gpio; 454 struct em28xx_reg_seq *mute_gpio; 455 456 unsigned int is_em2800:1; 457 unsigned int has_msp34xx:1; 458 unsigned int mts_firmware:1; 459 unsigned int max_range_640_480:1; 460 unsigned int has_dvb:1; 461 unsigned int is_webcam:1; 462 unsigned int valid:1; 463 unsigned int has_ir_i2c:1; 464 465 unsigned char xclk, i2c_speed; 466 unsigned char radio_addr; 467 unsigned short tvaudio_addr; 468 469 enum em28xx_decoder decoder; 470 enum em28xx_adecoder adecoder; 471 472 struct em28xx_input input[MAX_EM28XX_INPUT]; 473 struct em28xx_input radio; 474 char *ir_codes; 475 476 /* LEDs that need to be controlled explicitly */ 477 struct em28xx_led *leds; 478 479 /* Buttons */ 480 struct em28xx_button *buttons; 481 }; 482 483 struct em28xx_eeprom { 484 u8 id[4]; /* 1a eb 67 95 */ 485 __le16 vendor_ID; 486 __le16 product_ID; 487 488 __le16 chip_conf; 489 490 __le16 board_conf; 491 492 __le16 string1, string2, string3; 493 494 u8 string_idx_table; 495 }; 496 497 #define EM28XX_CAPTURE_STREAM_EN 1 498 499 /* em28xx extensions */ 500 #define EM28XX_AUDIO 0x10 501 #define EM28XX_DVB 0x20 502 #define EM28XX_RC 0x30 503 #define EM28XX_V4L2 0x40 504 505 /* em28xx resource types (used for res_get/res_lock etc */ 506 #define EM28XX_RESOURCE_VIDEO 0x01 507 #define EM28XX_RESOURCE_VBI 0x02 508 509 struct em28xx_v4l2 { 510 struct kref ref; 511 struct em28xx *dev; 512 513 struct v4l2_device v4l2_dev; 514 struct v4l2_ctrl_handler ctrl_handler; 515 struct v4l2_clk *clk; 516 517 struct video_device vdev; 518 struct video_device vbi_dev; 519 struct video_device radio_dev; 520 521 /* Videobuf2 */ 522 struct vb2_queue vb_vidq; 523 struct vb2_queue vb_vbiq; 524 struct mutex vb_queue_lock; 525 struct mutex vb_vbi_queue_lock; 526 527 u8 vinmode; 528 u8 vinctl; 529 530 /* Camera specific fields */ 531 int sensor_xres; 532 int sensor_yres; 533 int sensor_xtal; 534 535 int users; /* user count for exclusive use */ 536 int streaming_users; /* number of actively streaming users */ 537 538 u32 frequency; /* selected tuner frequency */ 539 540 struct em28xx_fmt *format; 541 v4l2_std_id norm; /* selected tv norm */ 542 543 /* Progressive/interlaced mode */ 544 bool progressive; 545 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 546 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 547 548 /* Frame properties */ 549 int width; /* current frame width */ 550 int height; /* current frame height */ 551 unsigned hscale; /* horizontal scale factor (see datasheet) */ 552 unsigned vscale; /* vertical scale factor (see datasheet) */ 553 unsigned int vbi_width; 554 unsigned int vbi_height; /* lines per field */ 555 556 /* Capture state tracking */ 557 int capture_type; 558 bool top_field; 559 int vbi_read; 560 unsigned int field_count; 561 }; 562 563 struct em28xx_audio { 564 char name[50]; 565 unsigned num_urb; 566 char **transfer_buffer; 567 struct urb **urb; 568 struct usb_device *udev; 569 unsigned int capture_transfer_done; 570 struct snd_pcm_substream *capture_pcm_substream; 571 572 unsigned int hwptr_done_capture; 573 struct snd_card *sndcard; 574 575 size_t period; 576 577 int users; 578 spinlock_t slock; 579 580 /* Controls streaming */ 581 struct work_struct wq_trigger; /* trigger to start/stop audio */ 582 atomic_t stream_started; /* stream should be running if true */ 583 }; 584 585 struct em28xx; 586 587 enum em28xx_i2c_algo_type { 588 EM28XX_I2C_ALGO_EM28XX = 0, 589 EM28XX_I2C_ALGO_EM2800, 590 EM28XX_I2C_ALGO_EM25XX_BUS_B, 591 }; 592 593 struct em28xx_i2c_bus { 594 struct em28xx *dev; 595 596 unsigned bus; 597 enum em28xx_i2c_algo_type algo_type; 598 }; 599 600 /* main device struct */ 601 struct em28xx { 602 struct kref ref; 603 604 /* Sub-module data */ 605 struct em28xx_v4l2 *v4l2; 606 struct em28xx_dvb *dvb; 607 struct em28xx_audio adev; 608 struct em28xx_IR *ir; 609 610 /* generic device properties */ 611 char name[30]; /* name (including minor) of the device */ 612 int model; /* index in the device_data struct */ 613 int devno; /* marks the number of this device */ 614 enum em28xx_chip_id chip_id; 615 616 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 617 unsigned char disconnected:1; /* device has been diconnected */ 618 unsigned int has_video:1; 619 unsigned int is_audio_only:1; 620 enum em28xx_int_audio_type int_audio_type; 621 enum em28xx_usb_audio_type usb_audio_type; 622 623 struct em28xx_board board; 624 625 enum em28xx_sensor em28xx_sensor; /* camera specific */ 626 627 /* Some older em28xx chips needs a waiting time after writing */ 628 unsigned int wait_after_write; 629 630 struct list_head devlist; 631 632 u32 i2s_speed; /* I2S speed for audio digital stream */ 633 634 struct em28xx_audio_mode audio_mode; 635 636 int tuner_type; /* type of the tuner */ 637 638 /* i2c i/o */ 639 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 640 struct i2c_client i2c_client[NUM_I2C_BUSES]; 641 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 642 643 unsigned char eeprom_addrwidth_16bit:1; 644 unsigned def_i2c_bus; /* Default I2C bus */ 645 unsigned cur_i2c_bus; /* Current I2C bus */ 646 struct rt_mutex i2c_bus_lock; 647 648 /* video for linux */ 649 unsigned int ctl_input; /* selected input */ 650 unsigned int ctl_ainput;/* selected audio input */ 651 unsigned int ctl_aoutput;/* selected audio output */ 652 int mute; 653 int volume; 654 655 unsigned long hash; /* eeprom hash - for boards with generic ID */ 656 unsigned long i2c_hash; /* i2c devicelist hash - 657 for boards with generic ID */ 658 659 struct work_struct request_module_wk; 660 661 /* locks */ 662 struct mutex lock; 663 struct mutex ctrl_urb_lock; /* protects urb_buf */ 664 665 /* resources in use */ 666 unsigned int resources; 667 668 /* eeprom content */ 669 u8 *eedata; 670 u16 eedata_len; 671 672 /* Isoc control struct */ 673 struct em28xx_dmaqueue vidq; 674 struct em28xx_dmaqueue vbiq; 675 struct em28xx_usb_ctl usb_ctl; 676 spinlock_t slock; 677 678 /* usb transfer */ 679 struct usb_device *udev; /* the usb device */ 680 u8 ifnum; /* number of the assigned usb interface */ 681 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 682 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 683 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 684 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 685 int alt; /* alternate setting */ 686 int max_pkt_size; /* max packet size of the selected ep at alt */ 687 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 688 URB buffer size definition */ 689 int num_alt; /* number of alternative settings */ 690 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 691 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 692 transfers for analog */ 693 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 694 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 695 selected DVB ep at dvb_alt */ 696 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 697 transfers for DVB */ 698 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 699 700 /* helper funcs that call usb_control_msg */ 701 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, 702 char *buf, int len); 703 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); 704 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, 705 char *buf, int len); 706 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, 707 char *buf, int len); 708 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); 709 710 enum em28xx_mode mode; 711 712 /* Button state polling */ 713 struct delayed_work buttons_query_work; 714 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 715 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 716 u8 num_button_polling_addresses; 717 u16 button_polling_interval; /* [ms] */ 718 /* Snapshot button input device */ 719 char snapshot_button_path[30]; /* path of the input dev */ 720 struct input_dev *sbutton_input_dev; 721 }; 722 723 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 724 725 struct em28xx_ops { 726 struct list_head next; 727 char *name; 728 int id; 729 int (*init)(struct em28xx *); 730 int (*fini)(struct em28xx *); 731 int (*suspend)(struct em28xx *); 732 int (*resume)(struct em28xx *); 733 }; 734 735 /* Provided by em28xx-i2c.c */ 736 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 737 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 738 enum em28xx_i2c_algo_type algo_type); 739 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 740 741 /* Provided by em28xx-core.c */ 742 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 743 char *buf, int len); 744 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 745 int em28xx_read_reg(struct em28xx *dev, u16 reg); 746 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 747 int len); 748 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 749 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 750 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 751 u8 bitmask); 752 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 753 754 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 755 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 756 757 int em28xx_audio_analog_set(struct em28xx *dev); 758 int em28xx_audio_setup(struct em28xx *dev); 759 760 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 761 enum em28xx_led_role role); 762 int em28xx_capture_start(struct em28xx *dev, int start); 763 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 764 int num_bufs, int max_pkt_size, int packet_multiplier); 765 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 766 int xfer_bulk, 767 int num_bufs, int max_pkt_size, int packet_multiplier, 768 int (*urb_data_copy) 769 (struct em28xx *dev, struct urb *urb)); 770 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 771 void em28xx_stop_urbs(struct em28xx *dev); 772 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 773 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 774 int em28xx_register_extension(struct em28xx_ops *dev); 775 void em28xx_unregister_extension(struct em28xx_ops *dev); 776 void em28xx_init_extension(struct em28xx *dev); 777 void em28xx_close_extension(struct em28xx *dev); 778 int em28xx_suspend_extension(struct em28xx *dev); 779 int em28xx_resume_extension(struct em28xx *dev); 780 781 /* Provided by em28xx-cards.c */ 782 extern struct em28xx_board em28xx_boards[]; 783 extern struct usb_device_id em28xx_id_table[]; 784 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 785 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 786 void em28xx_free_device(struct kref *ref); 787 788 /* Provided by em28xx-camera.c */ 789 int em28xx_detect_sensor(struct em28xx *dev); 790 int em28xx_init_camera(struct em28xx *dev); 791 792 /* printk macros */ 793 794 #define em28xx_err(fmt, arg...) do {\ 795 printk(KERN_ERR fmt , ##arg); } while (0) 796 797 #define em28xx_errdev(fmt, arg...) do {\ 798 printk(KERN_ERR "%s: "fmt,\ 799 dev->name , ##arg); } while (0) 800 801 #define em28xx_info(fmt, arg...) do {\ 802 printk(KERN_INFO "%s: "fmt,\ 803 dev->name , ##arg); } while (0) 804 #define em28xx_warn(fmt, arg...) do {\ 805 printk(KERN_WARNING "%s: "fmt,\ 806 dev->name , ##arg); } while (0) 807 808 #endif 809