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 u16 ac97_feat; 314 u32 ac97_vendor_id; 315 316 unsigned int has_audio:1; 317 318 u8 i2s_samplerates; 319 }; 320 321 /* em28xx has two audio inputs: tuner and line in. 322 However, on most devices, an auxiliary AC97 codec device is used. 323 The AC97 device may have several different inputs and outputs, 324 depending on their model. So, it is possible to use AC97 mixer to 325 address more than two different entries. 326 */ 327 enum em28xx_amux { 328 /* This is the only entry for em28xx tuner input */ 329 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 330 331 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 332 333 /* Some less-common mixer setups */ 334 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 335 EM28XX_AMUX_PHONE, 336 EM28XX_AMUX_MIC, 337 EM28XX_AMUX_CD, 338 EM28XX_AMUX_AUX, 339 EM28XX_AMUX_PCM_OUT, 340 }; 341 342 enum em28xx_aout { 343 /* AC97 outputs */ 344 EM28XX_AOUT_MASTER = 1 << 0, 345 EM28XX_AOUT_LINE = 1 << 1, 346 EM28XX_AOUT_MONO = 1 << 2, 347 EM28XX_AOUT_LFE = 1 << 3, 348 EM28XX_AOUT_SURR = 1 << 4, 349 350 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 351 EM28XX_AOUT_PCM_IN = 1 << 7, 352 353 /* Bits 10-8 are used to indicate the PCM IN record select */ 354 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 355 EM28XX_AOUT_PCM_CD = 1 << 8, 356 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 357 EM28XX_AOUT_PCM_AUX = 3 << 8, 358 EM28XX_AOUT_PCM_LINE = 4 << 8, 359 EM28XX_AOUT_PCM_STEREO = 5 << 8, 360 EM28XX_AOUT_PCM_MONO = 6 << 8, 361 EM28XX_AOUT_PCM_PHONE = 7 << 8, 362 }; 363 364 static inline int ac97_return_record_select(int a_out) 365 { 366 return (a_out & 0x700) >> 8; 367 } 368 369 struct em28xx_reg_seq { 370 int reg; 371 unsigned char val, mask; 372 int sleep; 373 }; 374 375 struct em28xx_input { 376 enum enum28xx_itype type; 377 unsigned int vmux; 378 enum em28xx_amux amux; 379 enum em28xx_aout aout; 380 struct em28xx_reg_seq *gpio; 381 }; 382 383 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 384 385 enum em28xx_decoder { 386 EM28XX_NODECODER = 0, 387 EM28XX_TVP5150, 388 EM28XX_SAA711X, 389 }; 390 391 enum em28xx_sensor { 392 EM28XX_NOSENSOR = 0, 393 EM28XX_MT9V011, 394 EM28XX_MT9M001, 395 EM28XX_MT9M111, 396 EM28XX_OV2640, 397 }; 398 399 enum em28xx_adecoder { 400 EM28XX_NOADECODER = 0, 401 EM28XX_TVAUDIO, 402 }; 403 404 enum em28xx_led_role { 405 EM28XX_LED_ANALOG_CAPTURING = 0, 406 EM28XX_LED_DIGITAL_CAPTURING, 407 EM28XX_LED_ILLUMINATION, 408 EM28XX_NUM_LED_ROLES, /* must be the last */ 409 }; 410 411 struct em28xx_led { 412 enum em28xx_led_role role; 413 u8 gpio_reg; 414 u8 gpio_mask; 415 bool inverted; 416 }; 417 418 enum em28xx_button_role { 419 EM28XX_BUTTON_SNAPSHOT = 0, 420 EM28XX_BUTTON_ILLUMINATION, 421 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 422 }; 423 424 struct em28xx_button { 425 enum em28xx_button_role role; 426 u8 reg_r; 427 u8 reg_clearing; 428 u8 mask; 429 bool inverted; 430 }; 431 432 struct em28xx_board { 433 char *name; 434 int vchannels; 435 int tuner_type; 436 int tuner_addr; 437 unsigned def_i2c_bus; /* Default I2C bus */ 438 439 /* i2c flags */ 440 unsigned int tda9887_conf; 441 442 /* GPIO sequences */ 443 struct em28xx_reg_seq *dvb_gpio; 444 struct em28xx_reg_seq *suspend_gpio; 445 struct em28xx_reg_seq *tuner_gpio; 446 struct em28xx_reg_seq *mute_gpio; 447 448 unsigned int is_em2800:1; 449 unsigned int has_msp34xx:1; 450 unsigned int mts_firmware:1; 451 unsigned int max_range_640_480:1; 452 unsigned int has_dvb:1; 453 unsigned int is_webcam:1; 454 unsigned int valid:1; 455 unsigned int has_ir_i2c:1; 456 457 unsigned char xclk, i2c_speed; 458 unsigned char radio_addr; 459 unsigned short tvaudio_addr; 460 461 enum em28xx_decoder decoder; 462 enum em28xx_adecoder adecoder; 463 464 struct em28xx_input input[MAX_EM28XX_INPUT]; 465 struct em28xx_input radio; 466 char *ir_codes; 467 468 /* LEDs that need to be controlled explicitly */ 469 struct em28xx_led *leds; 470 471 /* Buttons */ 472 struct em28xx_button *buttons; 473 }; 474 475 struct em28xx_eeprom { 476 u8 id[4]; /* 1a eb 67 95 */ 477 __le16 vendor_ID; 478 __le16 product_ID; 479 480 __le16 chip_conf; 481 482 __le16 board_conf; 483 484 __le16 string1, string2, string3; 485 486 u8 string_idx_table; 487 }; 488 489 #define EM28XX_CAPTURE_STREAM_EN 1 490 491 /* em28xx extensions */ 492 #define EM28XX_AUDIO 0x10 493 #define EM28XX_DVB 0x20 494 #define EM28XX_RC 0x30 495 #define EM28XX_V4L2 0x40 496 497 /* em28xx resource types (used for res_get/res_lock etc */ 498 #define EM28XX_RESOURCE_VIDEO 0x01 499 #define EM28XX_RESOURCE_VBI 0x02 500 501 struct em28xx_v4l2 { 502 struct kref ref; 503 struct em28xx *dev; 504 505 struct v4l2_device v4l2_dev; 506 struct v4l2_ctrl_handler ctrl_handler; 507 struct v4l2_clk *clk; 508 509 struct video_device *vdev; 510 struct video_device *vbi_dev; 511 struct video_device *radio_dev; 512 513 /* Videobuf2 */ 514 struct vb2_queue vb_vidq; 515 struct vb2_queue vb_vbiq; 516 struct mutex vb_queue_lock; 517 struct mutex vb_vbi_queue_lock; 518 519 u8 vinmode; 520 u8 vinctl; 521 522 /* Camera specific fields */ 523 int sensor_xres; 524 int sensor_yres; 525 int sensor_xtal; 526 527 int streaming_users; /* number of actively streaming users */ 528 529 u32 frequency; /* selected tuner frequency */ 530 531 struct em28xx_fmt *format; 532 v4l2_std_id norm; /* selected tv norm */ 533 534 /* Progressive/interlaced mode */ 535 bool progressive; 536 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 537 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 538 539 /* Frame properties */ 540 int width; /* current frame width */ 541 int height; /* current frame height */ 542 unsigned hscale; /* horizontal scale factor (see datasheet) */ 543 unsigned vscale; /* vertical scale factor (see datasheet) */ 544 unsigned int vbi_width; 545 unsigned int vbi_height; /* lines per field */ 546 547 /* Capture state tracking */ 548 int capture_type; 549 bool top_field; 550 int vbi_read; 551 unsigned int field_count; 552 }; 553 554 struct em28xx_audio { 555 char name[50]; 556 unsigned num_urb; 557 char **transfer_buffer; 558 struct urb **urb; 559 struct usb_device *udev; 560 unsigned int capture_transfer_done; 561 struct snd_pcm_substream *capture_pcm_substream; 562 563 unsigned int hwptr_done_capture; 564 struct snd_card *sndcard; 565 566 size_t period; 567 568 int users; 569 spinlock_t slock; 570 571 /* Controls streaming */ 572 struct work_struct wq_trigger; /* trigger to start/stop audio */ 573 atomic_t stream_started; /* stream should be running if true */ 574 }; 575 576 struct em28xx; 577 578 enum em28xx_i2c_algo_type { 579 EM28XX_I2C_ALGO_EM28XX = 0, 580 EM28XX_I2C_ALGO_EM2800, 581 EM28XX_I2C_ALGO_EM25XX_BUS_B, 582 }; 583 584 struct em28xx_i2c_bus { 585 struct em28xx *dev; 586 587 unsigned bus; 588 enum em28xx_i2c_algo_type algo_type; 589 }; 590 591 /* main device struct */ 592 struct em28xx { 593 struct kref ref; 594 595 /* Sub-module data */ 596 struct em28xx_v4l2 *v4l2; 597 struct em28xx_dvb *dvb; 598 struct em28xx_audio adev; 599 struct em28xx_IR *ir; 600 601 /* generic device properties */ 602 char name[30]; /* name (including minor) of the device */ 603 int model; /* index in the device_data struct */ 604 int devno; /* marks the number of this device */ 605 enum em28xx_chip_id chip_id; 606 607 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 608 unsigned char disconnected:1; /* device has been diconnected */ 609 unsigned int has_video:1; 610 unsigned int has_audio_class:1; 611 unsigned int has_alsa_audio:1; 612 unsigned int is_audio_only:1; 613 614 struct em28xx_board board; 615 616 enum em28xx_sensor em28xx_sensor; /* camera specific */ 617 618 /* Some older em28xx chips needs a waiting time after writing */ 619 unsigned int wait_after_write; 620 621 struct list_head devlist; 622 623 u32 i2s_speed; /* I2S speed for audio digital stream */ 624 625 struct em28xx_audio_mode audio_mode; 626 627 int tuner_type; /* type of the tuner */ 628 629 /* i2c i/o */ 630 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 631 struct i2c_client i2c_client[NUM_I2C_BUSES]; 632 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 633 634 unsigned char eeprom_addrwidth_16bit:1; 635 unsigned def_i2c_bus; /* Default I2C bus */ 636 unsigned cur_i2c_bus; /* Current I2C bus */ 637 struct rt_mutex i2c_bus_lock; 638 639 /* video for linux */ 640 unsigned int ctl_input; /* selected input */ 641 unsigned int ctl_ainput;/* selected audio input */ 642 unsigned int ctl_aoutput;/* selected audio output */ 643 int mute; 644 int volume; 645 646 unsigned long hash; /* eeprom hash - for boards with generic ID */ 647 unsigned long i2c_hash; /* i2c devicelist hash - 648 for boards with generic ID */ 649 650 struct work_struct request_module_wk; 651 652 /* locks */ 653 struct mutex lock; 654 struct mutex ctrl_urb_lock; /* protects urb_buf */ 655 656 /* resources in use */ 657 unsigned int resources; 658 659 /* eeprom content */ 660 u8 *eedata; 661 u16 eedata_len; 662 663 /* Isoc control struct */ 664 struct em28xx_dmaqueue vidq; 665 struct em28xx_dmaqueue vbiq; 666 struct em28xx_usb_ctl usb_ctl; 667 spinlock_t slock; 668 669 /* usb transfer */ 670 struct usb_device *udev; /* the usb device */ 671 u8 ifnum; /* number of the assigned usb interface */ 672 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 673 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 674 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 675 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 676 int alt; /* alternate setting */ 677 int max_pkt_size; /* max packet size of the selected ep at alt */ 678 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 679 URB buffer size definition */ 680 int num_alt; /* number of alternative settings */ 681 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 682 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 683 transfers for analog */ 684 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 685 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 686 selected DVB ep at dvb_alt */ 687 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 688 transfers for DVB */ 689 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 690 691 /* helper funcs that call usb_control_msg */ 692 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 693 char *buf, int len); 694 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 695 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 696 char *buf, int len); 697 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 698 char *buf, int len); 699 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 700 701 enum em28xx_mode mode; 702 703 /* Button state polling */ 704 struct delayed_work buttons_query_work; 705 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 706 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 707 u8 num_button_polling_addresses; 708 u16 button_polling_interval; /* [ms] */ 709 /* Snapshot button input device */ 710 char snapshot_button_path[30]; /* path of the input dev */ 711 struct input_dev *sbutton_input_dev; 712 }; 713 714 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 715 716 struct em28xx_ops { 717 struct list_head next; 718 char *name; 719 int id; 720 int (*init)(struct em28xx *); 721 int (*fini)(struct em28xx *); 722 int (*suspend)(struct em28xx *); 723 int (*resume)(struct em28xx *); 724 }; 725 726 /* Provided by em28xx-i2c.c */ 727 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 728 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 729 enum em28xx_i2c_algo_type algo_type); 730 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 731 732 /* Provided by em28xx-core.c */ 733 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 734 char *buf, int len); 735 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 736 int em28xx_read_reg(struct em28xx *dev, u16 reg); 737 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 738 int len); 739 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 740 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 741 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 742 u8 bitmask); 743 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 744 745 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 746 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 747 748 int em28xx_audio_analog_set(struct em28xx *dev); 749 int em28xx_audio_setup(struct em28xx *dev); 750 751 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 752 enum em28xx_led_role role); 753 int em28xx_capture_start(struct em28xx *dev, int start); 754 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 755 int num_bufs, int max_pkt_size, int packet_multiplier); 756 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 757 int xfer_bulk, 758 int num_bufs, int max_pkt_size, int packet_multiplier, 759 int (*urb_data_copy) 760 (struct em28xx *dev, struct urb *urb)); 761 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 762 void em28xx_stop_urbs(struct em28xx *dev); 763 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 764 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 765 int em28xx_register_extension(struct em28xx_ops *dev); 766 void em28xx_unregister_extension(struct em28xx_ops *dev); 767 void em28xx_init_extension(struct em28xx *dev); 768 void em28xx_close_extension(struct em28xx *dev); 769 int em28xx_suspend_extension(struct em28xx *dev); 770 int em28xx_resume_extension(struct em28xx *dev); 771 772 /* Provided by em28xx-cards.c */ 773 extern struct em28xx_board em28xx_boards[]; 774 extern struct usb_device_id em28xx_id_table[]; 775 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 776 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 777 void em28xx_free_device(struct kref *ref); 778 779 /* Provided by em28xx-camera.c */ 780 int em28xx_detect_sensor(struct em28xx *dev); 781 int em28xx_init_camera(struct em28xx *dev); 782 783 /* printk macros */ 784 785 #define em28xx_err(fmt, arg...) do {\ 786 printk(KERN_ERR fmt , ##arg); } while (0) 787 788 #define em28xx_errdev(fmt, arg...) do {\ 789 printk(KERN_ERR "%s: "fmt,\ 790 dev->name , ##arg); } while (0) 791 792 #define em28xx_info(fmt, arg...) do {\ 793 printk(KERN_INFO "%s: "fmt,\ 794 dev->name , ##arg); } while (0) 795 #define em28xx_warn(fmt, arg...) do {\ 796 printk(KERN_WARNING "%s: "fmt,\ 797 dev->name , ##arg); } while (0) 798 799 #endif 800