1 /* 2 em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices 3 4 Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> 5 Ludovico Cavedon <cavedon@sssup.it> 6 Mauro Carvalho Chehab <mchehab@infradead.org> 7 Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> 8 9 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> 10 11 This program is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 2 of the License, or 14 (at your option) any later version. 15 16 This program is distributed in the hope that it will be useful, 17 but WITHOUT ANY WARRANTY; without even the implied warranty of 18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19 GNU General Public License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software 23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 24 */ 25 26 #ifndef _EM28XX_H 27 #define _EM28XX_H 28 29 #define EM28XX_VERSION "0.2.1" 30 #define DRIVER_DESC "Empia em28xx device driver" 31 32 #include <linux/workqueue.h> 33 #include <linux/i2c.h> 34 #include <linux/mutex.h> 35 #include <linux/kref.h> 36 #include <linux/videodev2.h> 37 38 #include <media/videobuf2-vmalloc.h> 39 #include <media/v4l2-device.h> 40 #include <media/v4l2-ctrls.h> 41 #include <media/v4l2-fh.h> 42 #include <media/ir-kbd-i2c.h> 43 #include <media/rc-core.h> 44 #include "tuner-xc2028.h" 45 #include "xc5000.h" 46 #include "em28xx-reg.h" 47 48 /* Boards supported by driver */ 49 #define EM2800_BOARD_UNKNOWN 0 50 #define EM2820_BOARD_UNKNOWN 1 51 #define EM2820_BOARD_TERRATEC_CINERGY_250 2 52 #define EM2820_BOARD_PINNACLE_USB_2 3 53 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4 54 #define EM2820_BOARD_MSI_VOX_USB_2 5 55 #define EM2800_BOARD_TERRATEC_CINERGY_200 6 56 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7 57 #define EM2800_BOARD_KWORLD_USB2800 8 58 #define EM2820_BOARD_PINNACLE_DVC_90 9 59 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10 60 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11 61 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12 62 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13 63 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14 64 #define EM2800_BOARD_VGEAR_POCKETTV 15 65 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16 66 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 67 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 68 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19 69 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20 70 #define EM2800_BOARD_GRABBEEX_USB2800 21 71 #define EM2750_BOARD_UNKNOWN 22 72 #define EM2750_BOARD_DLCW_130 23 73 #define EM2820_BOARD_DLINK_USB_TV 24 74 #define EM2820_BOARD_GADMEI_UTV310 25 75 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26 76 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27 77 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28 78 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29 79 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30 80 #define EM2821_BOARD_USBGEAR_VD204 31 81 #define EM2821_BOARD_SUPERCOMP_USB_2 32 82 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33 83 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34 84 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35 85 #define EM2860_BOARD_NETGMBH_CAM 36 86 #define EM2860_BOARD_GADMEI_UTV330 37 87 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38 88 #define EM2861_BOARD_KWORLD_PVRTV_300U 39 89 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40 90 #define EM2870_BOARD_KWORLD_350U 41 91 #define EM2870_BOARD_KWORLD_355U 42 92 #define EM2870_BOARD_TERRATEC_XS 43 93 #define EM2870_BOARD_TERRATEC_XS_MT2060 44 94 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45 95 #define EM2870_BOARD_COMPRO_VIDEOMATE 46 96 #define EM2880_BOARD_KWORLD_DVB_305U 47 97 #define EM2880_BOARD_KWORLD_DVB_310U 48 98 #define EM2880_BOARD_MSI_DIGIVOX_AD 49 99 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50 100 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51 101 #define EM2881_BOARD_DNT_DA2_HYBRID 52 102 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53 103 #define EM2882_BOARD_KWORLD_VS_DVBT 54 104 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55 105 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56 106 #define EM2883_BOARD_KWORLD_HYBRID_330U 57 107 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58 108 #define EM2874_BOARD_PCTV_HD_MINI_80E 59 109 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60 110 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61 111 #define EM2820_BOARD_GADMEI_TVR200 62 112 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63 113 #define EM2860_BOARD_EASYCAP 64 114 #define EM2820_BOARD_IODATA_GVMVP_SZ 65 115 #define EM2880_BOARD_EMPIRE_DUAL_TV 66 116 #define EM2860_BOARD_TERRATEC_GRABBY 67 117 #define EM2860_BOARD_TERRATEC_AV350 68 118 #define EM2882_BOARD_KWORLD_ATSC_315U 69 119 #define EM2882_BOARD_EVGA_INDTUBE 70 120 #define EM2820_BOARD_SILVERCREST_WEBCAM 71 121 #define EM2861_BOARD_GADMEI_UTV330PLUS 72 122 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73 123 #define EM2800_BOARD_VC211A 74 124 #define EM2882_BOARD_DIKOM_DK300 75 125 #define EM2870_BOARD_KWORLD_A340 76 126 #define EM2874_BOARD_LEADERSHIP_ISDBT 77 127 #define EM28174_BOARD_PCTV_290E 78 128 #define EM2884_BOARD_TERRATEC_H5 79 129 #define EM28174_BOARD_PCTV_460E 80 130 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81 131 #define EM2884_BOARD_CINERGY_HTC_STICK 82 132 #define EM2860_BOARD_HT_VIDBOX_NW03 83 133 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84 134 #define EM2884_BOARD_PCTV_510E 85 135 #define EM2884_BOARD_PCTV_520E 86 136 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87 137 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88 138 #define EM2874_BOARD_DELOCK_61959 89 139 #define EM2874_BOARD_KWORLD_UB435Q_V2 90 140 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE 91 141 #define EM28178_BOARD_PCTV_461E 92 142 #define EM2874_BOARD_KWORLD_UB435Q_V3 93 143 #define EM28178_BOARD_PCTV_292E 94 144 #define EM2861_BOARD_LEADTEK_VC100 95 145 #define EM28178_BOARD_TERRATEC_T2_STICK_HD 96 146 147 /* Limits minimum and default number of buffers */ 148 #define EM28XX_MIN_BUF 4 149 #define EM28XX_DEF_BUF 8 150 151 /*Limits the max URB message size */ 152 #define URB_MAX_CTRL_SIZE 80 153 154 /* Params for validated field */ 155 #define EM28XX_BOARD_NOT_VALIDATED 1 156 #define EM28XX_BOARD_VALIDATED 0 157 158 /* Params for em28xx_cmd() audio */ 159 #define EM28XX_START_AUDIO 1 160 #define EM28XX_STOP_AUDIO 0 161 162 /* maximum number of em28xx boards */ 163 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 164 165 /* maximum number of frames that can be queued */ 166 #define EM28XX_NUM_FRAMES 5 167 /* number of frames that get used for v4l2_read() */ 168 #define EM28XX_NUM_READ_FRAMES 2 169 170 /* number of buffers for isoc transfers */ 171 #define EM28XX_NUM_BUFS 5 172 #define EM28XX_DVB_NUM_BUFS 5 173 174 /* max number of I2C buses on em28xx devices */ 175 #define NUM_I2C_BUSES 2 176 177 /* isoc transfers: number of packets for each buffer 178 windows requests only 64 packets .. so we better do the same 179 this is what I found out for all alternate numbers there! 180 */ 181 #define EM28XX_NUM_ISOC_PACKETS 64 182 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 183 184 /* bulk transfers: transfer buffer size = packet size * packet multiplier 185 USB 2.0 spec says bulk packet size is always 512 bytes 186 */ 187 #define EM28XX_BULK_PACKET_MULTIPLIER 384 188 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 189 190 #define EM28XX_INTERLACED_DEFAULT 1 191 192 /* 193 * Time in msecs to wait for i2c xfers to finish. 194 * 35ms is the maximum time a SMBUS device could wait when 195 * clock stretching is used. As the transfer itself will take 196 * some time to happen, set it to 35 ms. 197 * 198 * Ok, I2C doesn't specify any limit. So, eventually, we may need 199 * to increase this timeout. 200 * 201 * FIXME: this assumes that an I2C message is not longer than 1ms. 202 * This is actually dependent on the I2C bus speed, although most 203 * devices use a 100kHz clock. So, this assumtion is true most of 204 * the time. 205 */ 206 #define EM28XX_I2C_XFER_TIMEOUT 36 207 208 /* time in msecs to wait for AC97 xfers to finish */ 209 #define EM28XX_AC97_XFER_TIMEOUT 100 210 211 /* max. number of button state polling addresses */ 212 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 213 214 enum em28xx_mode { 215 EM28XX_SUSPEND, 216 EM28XX_ANALOG_MODE, 217 EM28XX_DIGITAL_MODE, 218 }; 219 220 struct em28xx; 221 222 struct em28xx_usb_bufs { 223 /* max packet size of isoc transaction */ 224 int max_pkt_size; 225 226 /* number of packets in each buffer */ 227 int num_packets; 228 229 /* number of allocated urbs */ 230 int num_bufs; 231 232 /* urb for isoc/bulk transfers */ 233 struct urb **urb; 234 235 /* transfer buffers for isoc/bulk transfer */ 236 char **transfer_buffer; 237 }; 238 239 struct em28xx_usb_ctl { 240 /* isoc/bulk transfer buffers for analog mode */ 241 struct em28xx_usb_bufs analog_bufs; 242 243 /* isoc/bulk transfer buffers for digital mode */ 244 struct em28xx_usb_bufs digital_bufs; 245 246 /* Stores already requested buffers */ 247 struct em28xx_buffer *vid_buf; 248 struct em28xx_buffer *vbi_buf; 249 250 /* copy data from URB */ 251 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb); 252 253 }; 254 255 /* Struct to enumberate video formats */ 256 struct em28xx_fmt { 257 char *name; 258 u32 fourcc; /* v4l2 format id */ 259 int depth; 260 int reg; 261 }; 262 263 /* buffer for one video frame */ 264 struct em28xx_buffer { 265 /* common v4l buffer stuff -- must be first */ 266 struct vb2_buffer vb; 267 struct list_head list; 268 269 void *mem; 270 unsigned int length; 271 int top_field; 272 273 /* counter to control buffer fill */ 274 unsigned int pos; 275 /* NOTE; in interlaced mode, this value is reset to zero at 276 * the start of each new field (not frame !) */ 277 278 /* pointer to vmalloc memory address in vb */ 279 char *vb_buf; 280 }; 281 282 struct em28xx_dmaqueue { 283 struct list_head active; 284 285 wait_queue_head_t wq; 286 }; 287 288 /* inputs */ 289 290 #define MAX_EM28XX_INPUT 4 291 enum enum28xx_itype { 292 EM28XX_VMUX_COMPOSITE1 = 1, 293 EM28XX_VMUX_COMPOSITE2, 294 EM28XX_VMUX_COMPOSITE3, 295 EM28XX_VMUX_COMPOSITE4, 296 EM28XX_VMUX_SVIDEO, 297 EM28XX_VMUX_TELEVISION, 298 EM28XX_VMUX_CABLE, 299 EM28XX_VMUX_DVB, 300 EM28XX_VMUX_DEBUG, 301 EM28XX_RADIO, 302 }; 303 304 enum em28xx_ac97_mode { 305 EM28XX_NO_AC97 = 0, 306 EM28XX_AC97_EM202, 307 EM28XX_AC97_SIGMATEL, 308 EM28XX_AC97_OTHER, 309 }; 310 311 struct em28xx_audio_mode { 312 enum em28xx_ac97_mode ac97; 313 }; 314 315 enum em28xx_int_audio_type { 316 EM28XX_INT_AUDIO_NONE = 0, 317 EM28XX_INT_AUDIO_AC97, 318 EM28XX_INT_AUDIO_I2S, 319 }; 320 321 enum em28xx_usb_audio_type { 322 EM28XX_USB_AUDIO_NONE = 0, 323 EM28XX_USB_AUDIO_CLASS, 324 EM28XX_USB_AUDIO_VENDOR, 325 }; 326 327 /* em28xx has two audio inputs: tuner and line in. 328 However, on most devices, an auxiliary AC97 codec device is used. 329 The AC97 device may have several different inputs and outputs, 330 depending on their model. So, it is possible to use AC97 mixer to 331 address more than two different entries. 332 */ 333 enum em28xx_amux { 334 /* This is the only entry for em28xx tuner input */ 335 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 336 337 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 338 339 /* Some less-common mixer setups */ 340 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 341 EM28XX_AMUX_PHONE, 342 EM28XX_AMUX_MIC, 343 EM28XX_AMUX_CD, 344 EM28XX_AMUX_AUX, 345 EM28XX_AMUX_PCM_OUT, 346 }; 347 348 enum em28xx_aout { 349 /* AC97 outputs */ 350 EM28XX_AOUT_MASTER = 1 << 0, 351 EM28XX_AOUT_LINE = 1 << 1, 352 EM28XX_AOUT_MONO = 1 << 2, 353 EM28XX_AOUT_LFE = 1 << 3, 354 EM28XX_AOUT_SURR = 1 << 4, 355 356 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 357 EM28XX_AOUT_PCM_IN = 1 << 7, 358 359 /* Bits 10-8 are used to indicate the PCM IN record select */ 360 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 361 EM28XX_AOUT_PCM_CD = 1 << 8, 362 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 363 EM28XX_AOUT_PCM_AUX = 3 << 8, 364 EM28XX_AOUT_PCM_LINE = 4 << 8, 365 EM28XX_AOUT_PCM_STEREO = 5 << 8, 366 EM28XX_AOUT_PCM_MONO = 6 << 8, 367 EM28XX_AOUT_PCM_PHONE = 7 << 8, 368 }; 369 370 static inline int ac97_return_record_select(int a_out) 371 { 372 return (a_out & 0x700) >> 8; 373 } 374 375 struct em28xx_reg_seq { 376 int reg; 377 unsigned char val, mask; 378 int sleep; 379 }; 380 381 struct em28xx_input { 382 enum enum28xx_itype type; 383 unsigned int vmux; 384 enum em28xx_amux amux; 385 enum em28xx_aout aout; 386 struct em28xx_reg_seq *gpio; 387 }; 388 389 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 390 391 enum em28xx_decoder { 392 EM28XX_NODECODER = 0, 393 EM28XX_TVP5150, 394 EM28XX_SAA711X, 395 }; 396 397 enum em28xx_sensor { 398 EM28XX_NOSENSOR = 0, 399 EM28XX_MT9V011, 400 EM28XX_MT9M001, 401 EM28XX_MT9M111, 402 EM28XX_OV2640, 403 }; 404 405 enum em28xx_adecoder { 406 EM28XX_NOADECODER = 0, 407 EM28XX_TVAUDIO, 408 }; 409 410 enum em28xx_led_role { 411 EM28XX_LED_ANALOG_CAPTURING = 0, 412 EM28XX_LED_DIGITAL_CAPTURING, 413 EM28XX_LED_ILLUMINATION, 414 EM28XX_NUM_LED_ROLES, /* must be the last */ 415 }; 416 417 struct em28xx_led { 418 enum em28xx_led_role role; 419 u8 gpio_reg; 420 u8 gpio_mask; 421 bool inverted; 422 }; 423 424 enum em28xx_button_role { 425 EM28XX_BUTTON_SNAPSHOT = 0, 426 EM28XX_BUTTON_ILLUMINATION, 427 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 428 }; 429 430 struct em28xx_button { 431 enum em28xx_button_role role; 432 u8 reg_r; 433 u8 reg_clearing; 434 u8 mask; 435 bool inverted; 436 }; 437 438 struct em28xx_board { 439 char *name; 440 int vchannels; 441 int tuner_type; 442 int tuner_addr; 443 unsigned def_i2c_bus; /* Default I2C bus */ 444 445 /* i2c flags */ 446 unsigned int tda9887_conf; 447 448 /* GPIO sequences */ 449 struct em28xx_reg_seq *dvb_gpio; 450 struct em28xx_reg_seq *suspend_gpio; 451 struct em28xx_reg_seq *tuner_gpio; 452 struct em28xx_reg_seq *mute_gpio; 453 454 unsigned int is_em2800:1; 455 unsigned int has_msp34xx:1; 456 unsigned int mts_firmware:1; 457 unsigned int max_range_640_480:1; 458 unsigned int has_dvb:1; 459 unsigned int is_webcam:1; 460 unsigned int valid:1; 461 unsigned int has_ir_i2c:1; 462 463 unsigned char xclk, i2c_speed; 464 unsigned char radio_addr; 465 unsigned short tvaudio_addr; 466 467 enum em28xx_decoder decoder; 468 enum em28xx_adecoder adecoder; 469 470 struct em28xx_input input[MAX_EM28XX_INPUT]; 471 struct em28xx_input radio; 472 char *ir_codes; 473 474 /* LEDs that need to be controlled explicitly */ 475 struct em28xx_led *leds; 476 477 /* Buttons */ 478 struct em28xx_button *buttons; 479 }; 480 481 struct em28xx_eeprom { 482 u8 id[4]; /* 1a eb 67 95 */ 483 __le16 vendor_ID; 484 __le16 product_ID; 485 486 __le16 chip_conf; 487 488 __le16 board_conf; 489 490 __le16 string1, string2, string3; 491 492 u8 string_idx_table; 493 }; 494 495 #define EM28XX_CAPTURE_STREAM_EN 1 496 497 /* em28xx extensions */ 498 #define EM28XX_AUDIO 0x10 499 #define EM28XX_DVB 0x20 500 #define EM28XX_RC 0x30 501 #define EM28XX_V4L2 0x40 502 503 /* em28xx resource types (used for res_get/res_lock etc */ 504 #define EM28XX_RESOURCE_VIDEO 0x01 505 #define EM28XX_RESOURCE_VBI 0x02 506 507 struct em28xx_v4l2 { 508 struct kref ref; 509 struct em28xx *dev; 510 511 struct v4l2_device v4l2_dev; 512 struct v4l2_ctrl_handler ctrl_handler; 513 struct v4l2_clk *clk; 514 515 struct video_device *vdev; 516 struct video_device *vbi_dev; 517 struct video_device *radio_dev; 518 519 /* Videobuf2 */ 520 struct vb2_queue vb_vidq; 521 struct vb2_queue vb_vbiq; 522 struct mutex vb_queue_lock; 523 struct mutex vb_vbi_queue_lock; 524 525 u8 vinmode; 526 u8 vinctl; 527 528 /* Camera specific fields */ 529 int sensor_xres; 530 int sensor_yres; 531 int sensor_xtal; 532 533 int users; /* user count for exclusive use */ 534 int streaming_users; /* number of actively streaming users */ 535 536 u32 frequency; /* selected tuner frequency */ 537 538 struct em28xx_fmt *format; 539 v4l2_std_id norm; /* selected tv norm */ 540 541 /* Progressive/interlaced mode */ 542 bool progressive; 543 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 544 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 545 546 /* Frame properties */ 547 int width; /* current frame width */ 548 int height; /* current frame height */ 549 unsigned hscale; /* horizontal scale factor (see datasheet) */ 550 unsigned vscale; /* vertical scale factor (see datasheet) */ 551 unsigned int vbi_width; 552 unsigned int vbi_height; /* lines per field */ 553 554 /* Capture state tracking */ 555 int capture_type; 556 bool top_field; 557 int vbi_read; 558 unsigned int field_count; 559 }; 560 561 struct em28xx_audio { 562 char name[50]; 563 unsigned num_urb; 564 char **transfer_buffer; 565 struct urb **urb; 566 struct usb_device *udev; 567 unsigned int capture_transfer_done; 568 struct snd_pcm_substream *capture_pcm_substream; 569 570 unsigned int hwptr_done_capture; 571 struct snd_card *sndcard; 572 573 size_t period; 574 575 int users; 576 spinlock_t slock; 577 578 /* Controls streaming */ 579 struct work_struct wq_trigger; /* trigger to start/stop audio */ 580 atomic_t stream_started; /* stream should be running if true */ 581 }; 582 583 struct em28xx; 584 585 enum em28xx_i2c_algo_type { 586 EM28XX_I2C_ALGO_EM28XX = 0, 587 EM28XX_I2C_ALGO_EM2800, 588 EM28XX_I2C_ALGO_EM25XX_BUS_B, 589 }; 590 591 struct em28xx_i2c_bus { 592 struct em28xx *dev; 593 594 unsigned bus; 595 enum em28xx_i2c_algo_type algo_type; 596 }; 597 598 /* main device struct */ 599 struct em28xx { 600 struct kref ref; 601 602 /* Sub-module data */ 603 struct em28xx_v4l2 *v4l2; 604 struct em28xx_dvb *dvb; 605 struct em28xx_audio adev; 606 struct em28xx_IR *ir; 607 608 /* generic device properties */ 609 char name[30]; /* name (including minor) of the device */ 610 int model; /* index in the device_data struct */ 611 int devno; /* marks the number of this device */ 612 enum em28xx_chip_id chip_id; 613 614 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 615 unsigned char disconnected:1; /* device has been diconnected */ 616 unsigned int has_video:1; 617 unsigned int is_audio_only:1; 618 enum em28xx_int_audio_type int_audio_type; 619 enum em28xx_usb_audio_type usb_audio_type; 620 621 struct em28xx_board board; 622 623 enum em28xx_sensor em28xx_sensor; /* camera specific */ 624 625 /* Some older em28xx chips needs a waiting time after writing */ 626 unsigned int wait_after_write; 627 628 struct list_head devlist; 629 630 u32 i2s_speed; /* I2S speed for audio digital stream */ 631 632 struct em28xx_audio_mode audio_mode; 633 634 int tuner_type; /* type of the tuner */ 635 636 /* i2c i/o */ 637 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 638 struct i2c_client i2c_client[NUM_I2C_BUSES]; 639 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 640 641 unsigned char eeprom_addrwidth_16bit:1; 642 unsigned def_i2c_bus; /* Default I2C bus */ 643 unsigned cur_i2c_bus; /* Current I2C bus */ 644 struct rt_mutex i2c_bus_lock; 645 646 /* video for linux */ 647 unsigned int ctl_input; /* selected input */ 648 unsigned int ctl_ainput;/* selected audio input */ 649 unsigned int ctl_aoutput;/* selected audio output */ 650 int mute; 651 int volume; 652 653 unsigned long hash; /* eeprom hash - for boards with generic ID */ 654 unsigned long i2c_hash; /* i2c devicelist hash - 655 for boards with generic ID */ 656 657 struct work_struct request_module_wk; 658 659 /* locks */ 660 struct mutex lock; 661 struct mutex ctrl_urb_lock; /* protects urb_buf */ 662 663 /* resources in use */ 664 unsigned int resources; 665 666 /* eeprom content */ 667 u8 *eedata; 668 u16 eedata_len; 669 670 /* Isoc control struct */ 671 struct em28xx_dmaqueue vidq; 672 struct em28xx_dmaqueue vbiq; 673 struct em28xx_usb_ctl usb_ctl; 674 spinlock_t slock; 675 676 /* usb transfer */ 677 struct usb_device *udev; /* the usb device */ 678 u8 ifnum; /* number of the assigned usb interface */ 679 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 680 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 681 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 682 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 683 int alt; /* alternate setting */ 684 int max_pkt_size; /* max packet size of the selected ep at alt */ 685 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 686 URB buffer size definition */ 687 int num_alt; /* number of alternative settings */ 688 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 689 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 690 transfers for analog */ 691 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 692 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 693 selected DVB ep at dvb_alt */ 694 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 695 transfers for DVB */ 696 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 697 698 /* helper funcs that call usb_control_msg */ 699 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, 700 char *buf, int len); 701 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); 702 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, 703 char *buf, int len); 704 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, 705 char *buf, int len); 706 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); 707 708 enum em28xx_mode mode; 709 710 /* Button state polling */ 711 struct delayed_work buttons_query_work; 712 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 713 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 714 u8 num_button_polling_addresses; 715 u16 button_polling_interval; /* [ms] */ 716 /* Snapshot button input device */ 717 char snapshot_button_path[30]; /* path of the input dev */ 718 struct input_dev *sbutton_input_dev; 719 }; 720 721 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 722 723 struct em28xx_ops { 724 struct list_head next; 725 char *name; 726 int id; 727 int (*init)(struct em28xx *); 728 int (*fini)(struct em28xx *); 729 int (*suspend)(struct em28xx *); 730 int (*resume)(struct em28xx *); 731 }; 732 733 /* Provided by em28xx-i2c.c */ 734 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 735 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 736 enum em28xx_i2c_algo_type algo_type); 737 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 738 739 /* Provided by em28xx-core.c */ 740 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 741 char *buf, int len); 742 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 743 int em28xx_read_reg(struct em28xx *dev, u16 reg); 744 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 745 int len); 746 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 747 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 748 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 749 u8 bitmask); 750 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 751 752 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 753 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 754 755 int em28xx_audio_analog_set(struct em28xx *dev); 756 int em28xx_audio_setup(struct em28xx *dev); 757 758 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 759 enum em28xx_led_role role); 760 int em28xx_capture_start(struct em28xx *dev, int start); 761 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 762 int num_bufs, int max_pkt_size, int packet_multiplier); 763 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 764 int xfer_bulk, 765 int num_bufs, int max_pkt_size, int packet_multiplier, 766 int (*urb_data_copy) 767 (struct em28xx *dev, struct urb *urb)); 768 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 769 void em28xx_stop_urbs(struct em28xx *dev); 770 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 771 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 772 int em28xx_register_extension(struct em28xx_ops *dev); 773 void em28xx_unregister_extension(struct em28xx_ops *dev); 774 void em28xx_init_extension(struct em28xx *dev); 775 void em28xx_close_extension(struct em28xx *dev); 776 int em28xx_suspend_extension(struct em28xx *dev); 777 int em28xx_resume_extension(struct em28xx *dev); 778 779 /* Provided by em28xx-cards.c */ 780 extern struct em28xx_board em28xx_boards[]; 781 extern struct usb_device_id em28xx_id_table[]; 782 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 783 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 784 void em28xx_free_device(struct kref *ref); 785 786 /* Provided by em28xx-camera.c */ 787 int em28xx_detect_sensor(struct em28xx *dev); 788 int em28xx_init_camera(struct em28xx *dev); 789 790 /* printk macros */ 791 792 #define em28xx_err(fmt, arg...) do {\ 793 printk(KERN_ERR fmt , ##arg); } while (0) 794 795 #define em28xx_errdev(fmt, arg...) do {\ 796 printk(KERN_ERR "%s: "fmt,\ 797 dev->name , ##arg); } while (0) 798 799 #define em28xx_info(fmt, arg...) do {\ 800 printk(KERN_INFO "%s: "fmt,\ 801 dev->name , ##arg); } while (0) 802 #define em28xx_warn(fmt, arg...) do {\ 803 printk(KERN_WARNING "%s: "fmt,\ 804 dev->name , ##arg); } while (0) 805 806 #endif 807