1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices 4 * 5 * Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> 6 * Ludovico Cavedon <cavedon@sssup.it> 7 * Mauro Carvalho Chehab <mchehab@kernel.org> 8 * Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com> 9 * 10 * Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 */ 22 23 #ifndef _EM28XX_H 24 #define _EM28XX_H 25 26 #include <linux/bitfield.h> 27 28 #define EM28XX_VERSION "0.2.2" 29 #define DRIVER_DESC "Empia em28xx device driver" 30 31 #include <linux/workqueue.h> 32 #include <linux/i2c.h> 33 #include <linux/mutex.h> 34 #include <linux/kref.h> 35 #include <linux/videodev2.h> 36 37 #include <media/videobuf2-v4l2.h> 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/i2c/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 #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008 97 147 #define EM28178_BOARD_PLEX_PX_BCUD 98 148 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB 99 149 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100 150 #define EM2884_BOARD_TERRATEC_H6 101 151 #define EM2882_BOARD_ZOLID_HYBRID_TV_STICK 102 152 153 /* Limits minimum and default number of buffers */ 154 #define EM28XX_MIN_BUF 4 155 #define EM28XX_DEF_BUF 8 156 157 /*Limits the max URB message size */ 158 #define URB_MAX_CTRL_SIZE 80 159 160 /* Params for validated field */ 161 #define EM28XX_BOARD_NOT_VALIDATED 1 162 #define EM28XX_BOARD_VALIDATED 0 163 164 /* Params for em28xx_cmd() audio */ 165 #define EM28XX_START_AUDIO 1 166 #define EM28XX_STOP_AUDIO 0 167 168 /* maximum number of em28xx boards */ 169 #define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */ 170 171 /* maximum number of frames that can be queued */ 172 #define EM28XX_NUM_FRAMES 5 173 /* number of frames that get used for v4l2_read() */ 174 #define EM28XX_NUM_READ_FRAMES 2 175 176 /* number of buffers for isoc transfers */ 177 #define EM28XX_NUM_BUFS 5 178 #define EM28XX_DVB_NUM_BUFS 5 179 180 /* max number of I2C buses on em28xx devices */ 181 #define NUM_I2C_BUSES 2 182 183 /* 184 * isoc transfers: number of packets for each buffer 185 * windows requests only 64 packets .. so we better do the same 186 * this is what I found out for all alternate numbers there! 187 */ 188 #define EM28XX_NUM_ISOC_PACKETS 64 189 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 190 191 /* 192 * bulk transfers: transfer buffer size = packet size * packet multiplier 193 * USB 2.0 spec says bulk packet size is always 512 bytes 194 */ 195 #define EM28XX_BULK_PACKET_MULTIPLIER 384 196 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94 197 198 #define EM28XX_INTERLACED_DEFAULT 1 199 200 /* time in msecs to wait for AC97 xfers to finish */ 201 #define EM28XX_AC97_XFER_TIMEOUT 100 202 203 /* max. number of button state polling addresses */ 204 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 205 206 #define PRIMARY_TS 0 207 #define SECONDARY_TS 1 208 209 enum em28xx_mode { 210 EM28XX_SUSPEND, 211 EM28XX_ANALOG_MODE, 212 EM28XX_DIGITAL_MODE, 213 }; 214 215 struct em28xx; 216 217 /** 218 * struct em28xx_usb_bufs - Contains URB-related buffer data 219 * 220 * @max_pkt_size: max packet size of isoc transaction 221 * @num_packets: number of packets in each buffer 222 * @num_bufs: number of allocated urb 223 * @urb: urb for isoc/bulk transfers 224 * @buf: transfer buffers for isoc/bulk transfer 225 */ 226 struct em28xx_usb_bufs { 227 int max_pkt_size; 228 int num_packets; 229 int num_bufs; 230 struct urb **urb; 231 char **buf; 232 }; 233 234 /** 235 * struct em28xx_usb_ctl - Contains URB-related buffer data 236 * 237 * @analog_bufs: isoc/bulk transfer buffers for analog mode 238 * @digital_bufs: isoc/bulk transfer buffers for digital mode 239 * @vid_buf: Stores already requested video buffers 240 * @vbi_buf: Stores already requested VBI buffers 241 * @urb_data_copy: copy data from URB 242 */ 243 struct em28xx_usb_ctl { 244 struct em28xx_usb_bufs analog_bufs; 245 struct em28xx_usb_bufs digital_bufs; 246 struct em28xx_buffer *vid_buf; 247 struct em28xx_buffer *vbi_buf; 248 int (*urb_data_copy)(struct em28xx *dev, struct urb *urb); 249 }; 250 251 /** 252 * struct em28xx_fmt - Struct to enumberate video formats 253 * 254 * @name: Name for the video standard 255 * @fourcc: v4l2 format id 256 * @depth: mean number of bits to represent a pixel 257 * @reg: em28xx register value to set it 258 */ 259 struct em28xx_fmt { 260 char *name; 261 u32 fourcc; 262 int depth; 263 int reg; 264 }; 265 266 /** 267 * struct em28xx_buffer- buffer for storing one video frame 268 * 269 * @vb: common v4l buffer stuff 270 * @list: List to associate it with the other buffers 271 * @mem: pointer to the buffer, as returned by vb2_plane_vaddr() 272 * @length: length of the buffer, as returned by vb2_plane_size() 273 * @top_field: If non-zero, indicate that the buffer is the top field 274 * @pos: Indicate the next position of the buffer to be filled. 275 * @vb_buf: pointer to vmalloc memory address in vb 276 * 277 * .. note:: 278 * 279 * in interlaced mode, @pos is reset to zero at the start of each new 280 * field (not frame !) 281 */ 282 struct em28xx_buffer { 283 struct vb2_v4l2_buffer vb; /* must be first */ 284 285 struct list_head list; 286 287 void *mem; 288 unsigned int length; 289 int top_field; 290 291 unsigned int pos; 292 293 char *vb_buf; 294 }; 295 296 struct em28xx_dmaqueue { 297 struct list_head active; 298 299 wait_queue_head_t wq; 300 }; 301 302 /* inputs */ 303 304 #define MAX_EM28XX_INPUT 4 305 enum enum28xx_itype { 306 EM28XX_VMUX_COMPOSITE = 1, 307 EM28XX_VMUX_SVIDEO, 308 EM28XX_VMUX_TELEVISION, 309 EM28XX_RADIO, 310 }; 311 312 enum em28xx_ac97_mode { 313 EM28XX_NO_AC97 = 0, 314 EM28XX_AC97_EM202, 315 EM28XX_AC97_SIGMATEL, 316 EM28XX_AC97_OTHER, 317 }; 318 319 struct em28xx_audio_mode { 320 enum em28xx_ac97_mode ac97; 321 }; 322 323 enum em28xx_int_audio_type { 324 EM28XX_INT_AUDIO_NONE = 0, 325 EM28XX_INT_AUDIO_AC97, 326 EM28XX_INT_AUDIO_I2S, 327 }; 328 329 enum em28xx_usb_audio_type { 330 EM28XX_USB_AUDIO_NONE = 0, 331 EM28XX_USB_AUDIO_CLASS, 332 EM28XX_USB_AUDIO_VENDOR, 333 }; 334 335 /** 336 * em28xx_amux - describes the type of audio input used by em28xx 337 * 338 * @EM28XX_AMUX_UNUSED: 339 * Used only on em28xx dev->map field, in order to mark an entry 340 * as unused. 341 * @EM28XX_AMUX_VIDEO: 342 * On devices without AC97, this is the only value that it is currently 343 * allowed. 344 * On devices with AC97, it corresponds to the AC97 mixer "Video" control. 345 * @EM28XX_AMUX_LINE_IN: 346 * Only for devices with AC97. Corresponds to AC97 mixer "Line In". 347 * @EM28XX_AMUX_VIDEO2: 348 * Only for devices with AC97. It means that em28xx should use "Line In" 349 * And AC97 should use the "Video" mixer control. 350 * @EM28XX_AMUX_PHONE: 351 * Only for devices with AC97. Corresponds to AC97 mixer "Phone". 352 * @EM28XX_AMUX_MIC: 353 * Only for devices with AC97. Corresponds to AC97 mixer "Mic". 354 * @EM28XX_AMUX_CD: 355 * Only for devices with AC97. Corresponds to AC97 mixer "CD". 356 * @EM28XX_AMUX_AUX: 357 * Only for devices with AC97. Corresponds to AC97 mixer "Aux". 358 * @EM28XX_AMUX_PCM_OUT: 359 * Only for devices with AC97. Corresponds to AC97 mixer "PCM out". 360 * 361 * The em28xx chip itself has only two audio inputs: tuner and line in. 362 * On almost all devices, only the tuner input is used. 363 * 364 * However, on most devices, an auxiliary AC97 codec device is used, 365 * usually connected to the em28xx tuner input (except for 366 * @EM28XX_AMUX_LINE_IN). 367 * 368 * The AC97 device typically have several different inputs and outputs. 369 * The exact number and description depends on their model. 370 * 371 * It is possible to AC97 to mixer more than one different entries at the 372 * same time, via the alsa mux. 373 */ 374 enum em28xx_amux { 375 EM28XX_AMUX_UNUSED = -1, 376 EM28XX_AMUX_VIDEO = 0, 377 EM28XX_AMUX_LINE_IN, 378 379 /* Some less-common mixer setups */ 380 EM28XX_AMUX_VIDEO2, 381 EM28XX_AMUX_PHONE, 382 EM28XX_AMUX_MIC, 383 EM28XX_AMUX_CD, 384 EM28XX_AMUX_AUX, 385 EM28XX_AMUX_PCM_OUT, 386 }; 387 388 enum em28xx_aout { 389 /* AC97 outputs */ 390 EM28XX_AOUT_MASTER = BIT(0), 391 EM28XX_AOUT_LINE = BIT(1), 392 EM28XX_AOUT_MONO = BIT(2), 393 EM28XX_AOUT_LFE = BIT(3), 394 EM28XX_AOUT_SURR = BIT(4), 395 396 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 397 EM28XX_AOUT_PCM_IN = BIT(7), 398 399 /* Bits 10-8 are used to indicate the PCM IN record select */ 400 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 401 EM28XX_AOUT_PCM_CD = 1 << 8, 402 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 403 EM28XX_AOUT_PCM_AUX = 3 << 8, 404 EM28XX_AOUT_PCM_LINE = 4 << 8, 405 EM28XX_AOUT_PCM_STEREO = 5 << 8, 406 EM28XX_AOUT_PCM_MONO = 6 << 8, 407 EM28XX_AOUT_PCM_PHONE = 7 << 8, 408 }; 409 410 static inline int ac97_return_record_select(int a_out) 411 { 412 return (a_out & 0x700) >> 8; 413 } 414 415 struct em28xx_reg_seq { 416 int reg; 417 unsigned char val, mask; 418 int sleep; 419 }; 420 421 struct em28xx_input { 422 enum enum28xx_itype type; 423 unsigned int vmux; 424 enum em28xx_amux amux; 425 enum em28xx_aout aout; 426 const struct em28xx_reg_seq *gpio; 427 }; 428 429 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 430 431 enum em28xx_decoder { 432 EM28XX_NODECODER = 0, 433 EM28XX_TVP5150, 434 EM28XX_SAA711X, 435 }; 436 437 enum em28xx_sensor { 438 EM28XX_NOSENSOR = 0, 439 EM28XX_MT9V011, 440 EM28XX_MT9M001, 441 EM28XX_MT9M111, 442 EM28XX_OV2640, 443 }; 444 445 enum em28xx_adecoder { 446 EM28XX_NOADECODER = 0, 447 EM28XX_TVAUDIO, 448 }; 449 450 enum em28xx_led_role { 451 EM28XX_LED_ANALOG_CAPTURING = 0, 452 EM28XX_LED_DIGITAL_CAPTURING, 453 EM28XX_LED_DIGITAL_CAPTURING_TS2, 454 EM28XX_LED_ILLUMINATION, 455 EM28XX_NUM_LED_ROLES, /* must be the last */ 456 }; 457 458 struct em28xx_led { 459 enum em28xx_led_role role; 460 u8 gpio_reg; 461 u8 gpio_mask; 462 bool inverted; 463 }; 464 465 enum em28xx_button_role { 466 EM28XX_BUTTON_SNAPSHOT = 0, 467 EM28XX_BUTTON_ILLUMINATION, 468 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 469 }; 470 471 struct em28xx_button { 472 enum em28xx_button_role role; 473 u8 reg_r; 474 u8 reg_clearing; 475 u8 mask; 476 bool inverted; 477 }; 478 479 struct em28xx_board { 480 char *name; 481 int vchannels; 482 int tuner_type; 483 int tuner_addr; 484 unsigned int def_i2c_bus; /* Default I2C bus */ 485 486 /* i2c flags */ 487 unsigned int tda9887_conf; 488 489 /* GPIO sequences */ 490 const struct em28xx_reg_seq *dvb_gpio; 491 const struct em28xx_reg_seq *suspend_gpio; 492 const struct em28xx_reg_seq *tuner_gpio; 493 const struct em28xx_reg_seq *mute_gpio; 494 495 unsigned int is_em2800:1; 496 unsigned int has_msp34xx:1; 497 unsigned int mts_firmware:1; 498 unsigned int max_range_640_480:1; 499 unsigned int has_dvb:1; 500 unsigned int has_dual_ts:1; 501 unsigned int is_webcam:1; 502 unsigned int valid:1; 503 unsigned int has_ir_i2c:1; 504 505 unsigned char xclk, i2c_speed; 506 unsigned char radio_addr; 507 unsigned short tvaudio_addr; 508 509 enum em28xx_decoder decoder; 510 enum em28xx_adecoder adecoder; 511 512 struct em28xx_input input[MAX_EM28XX_INPUT]; 513 struct em28xx_input radio; 514 char *ir_codes; 515 516 /* LEDs that need to be controlled explicitly */ 517 struct em28xx_led *leds; 518 519 /* Buttons */ 520 const struct em28xx_button *buttons; 521 }; 522 523 struct em28xx_eeprom { 524 u8 id[4]; /* 1a eb 67 95 */ 525 __le16 vendor_ID; 526 __le16 product_ID; 527 528 __le16 chip_conf; 529 530 __le16 board_conf; 531 532 __le16 string1, string2, string3; 533 534 u8 string_idx_table; 535 }; 536 537 #define EM28XX_CAPTURE_STREAM_EN 1 538 539 /* em28xx extensions */ 540 #define EM28XX_AUDIO 0x10 541 #define EM28XX_DVB 0x20 542 #define EM28XX_RC 0x30 543 #define EM28XX_V4L2 0x40 544 545 /* em28xx resource types (used for res_get/res_lock etc */ 546 #define EM28XX_RESOURCE_VIDEO 0x01 547 #define EM28XX_RESOURCE_VBI 0x02 548 549 struct em28xx_v4l2 { 550 struct kref ref; 551 struct em28xx *dev; 552 553 struct v4l2_device v4l2_dev; 554 struct v4l2_ctrl_handler ctrl_handler; 555 556 struct video_device vdev; 557 struct video_device vbi_dev; 558 struct video_device radio_dev; 559 560 /* Videobuf2 */ 561 struct vb2_queue vb_vidq; 562 struct vb2_queue vb_vbiq; 563 struct mutex vb_queue_lock; /* Protects vb_vidq */ 564 struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */ 565 566 u8 vinmode; 567 u8 vinctl; 568 569 /* Camera specific fields */ 570 int sensor_xres; 571 int sensor_yres; 572 int sensor_xtal; 573 574 int users; /* user count for exclusive use */ 575 int streaming_users; /* number of actively streaming users */ 576 577 u32 frequency; /* selected tuner frequency */ 578 579 struct em28xx_fmt *format; 580 v4l2_std_id norm; /* selected tv norm */ 581 582 /* Progressive/interlaced mode */ 583 bool progressive; 584 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 585 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 586 587 /* Frame properties */ 588 int width; /* current frame width */ 589 int height; /* current frame height */ 590 unsigned int hscale; /* horizontal scale factor (see datasheet) */ 591 unsigned int vscale; /* vertical scale factor (see datasheet) */ 592 unsigned int vbi_width; 593 unsigned int vbi_height; /* lines per field */ 594 595 /* Capture state tracking */ 596 int capture_type; 597 bool top_field; 598 int vbi_read; 599 unsigned int field_count; 600 601 #ifdef CONFIG_MEDIA_CONTROLLER 602 struct media_pad video_pad, vbi_pad; 603 struct media_entity *decoder; 604 #endif 605 }; 606 607 struct em28xx_audio { 608 char name[50]; 609 unsigned int num_urb; 610 char **transfer_buffer; 611 struct urb **urb; 612 struct usb_device *udev; 613 unsigned int capture_transfer_done; 614 struct snd_pcm_substream *capture_pcm_substream; 615 616 unsigned int hwptr_done_capture; 617 struct snd_card *sndcard; 618 619 size_t period; 620 621 int users; 622 spinlock_t slock; /* Protects struct em28xx_audio */ 623 624 /* Controls streaming */ 625 struct work_struct wq_trigger; /* trigger to start/stop audio */ 626 atomic_t stream_started; /* stream should be running if true */ 627 }; 628 629 struct em28xx; 630 631 enum em28xx_i2c_algo_type { 632 EM28XX_I2C_ALGO_EM28XX = 0, 633 EM28XX_I2C_ALGO_EM2800, 634 EM28XX_I2C_ALGO_EM25XX_BUS_B, 635 }; 636 637 struct em28xx_i2c_bus { 638 struct em28xx *dev; 639 640 unsigned int bus; 641 enum em28xx_i2c_algo_type algo_type; 642 }; 643 644 /* main device struct */ 645 struct em28xx { 646 struct kref ref; 647 648 // Sub-module data 649 struct em28xx_v4l2 *v4l2; 650 struct em28xx_dvb *dvb; 651 struct em28xx_audio adev; 652 struct em28xx_IR *ir; 653 654 // generic device properties 655 int model; // index in the device_data struct 656 int devno; // marks the number of this device 657 enum em28xx_chip_id chip_id; 658 659 unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge 660 unsigned int disconnected:1; // device has been diconnected 661 unsigned int has_video:1; 662 unsigned int is_audio_only:1; 663 unsigned int is_webcam:1; 664 unsigned int has_msp34xx:1; 665 unsigned int i2c_speed:2; 666 enum em28xx_int_audio_type int_audio_type; 667 enum em28xx_usb_audio_type usb_audio_type; 668 unsigned char name[32]; 669 670 struct em28xx_board board; 671 672 enum em28xx_sensor em28xx_sensor; // camera specific 673 674 // Some older em28xx chips needs a waiting time after writing 675 unsigned int wait_after_write; 676 677 struct list_head devlist; 678 679 u32 i2s_speed; // I2S speed for audio digital stream 680 681 struct em28xx_audio_mode audio_mode; 682 683 int tuner_type; // type of the tuner 684 685 // i2c i/o 686 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 687 struct i2c_client i2c_client[NUM_I2C_BUSES]; 688 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 689 690 unsigned char eeprom_addrwidth_16bit:1; 691 unsigned int def_i2c_bus; // Default I2C bus 692 unsigned int cur_i2c_bus; // Current I2C bus 693 struct rt_mutex i2c_bus_lock; 694 695 // video for linux 696 unsigned int ctl_input; // selected input 697 unsigned int ctl_ainput;// selected audio input 698 unsigned int ctl_aoutput;// selected audio output 699 enum em28xx_amux amux_map[MAX_EM28XX_INPUT]; 700 701 int mute; 702 int volume; 703 704 unsigned long hash; // eeprom hash - for boards with generic ID 705 unsigned long i2c_hash; // i2c devicelist hash - 706 // for boards with generic ID 707 708 struct work_struct request_module_wk; 709 710 // locks 711 struct mutex lock; /* protects em28xx struct */ 712 struct mutex ctrl_urb_lock; /* protects urb_buf */ 713 714 // resources in use 715 unsigned int resources; 716 717 // eeprom content 718 u8 *eedata; 719 u16 eedata_len; 720 721 // Isoc control struct 722 struct em28xx_dmaqueue vidq; 723 struct em28xx_dmaqueue vbiq; 724 struct em28xx_usb_ctl usb_ctl; 725 726 spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */ 727 728 // usb transfer 729 struct usb_interface *intf; // the usb interface 730 u8 ifnum; // number of the assigned usb interface 731 u8 analog_ep_isoc; // address of isoc endpoint for analog 732 u8 analog_ep_bulk; // address of bulk endpoint for analog 733 u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2 734 u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2 735 u8 dvb_ep_isoc; // address of isoc endpoint for DVB 736 u8 dvb_ep_bulk; // address of bulk endpoint for DVB 737 int alt; // alternate setting 738 int max_pkt_size; // max packet size of the selected ep at alt 739 int packet_multiplier; // multiplier for wMaxPacketSize, used for 740 // URB buffer size definition 741 int num_alt; // number of alternative settings 742 unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize 743 unsigned int analog_xfer_bulk:1; // use bulk instead of isoc 744 // transfers for analog 745 int dvb_alt_isoc; // alternate setting for DVB isoc transfers 746 unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the 747 // selected DVB ep at dvb_alt 748 unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the 749 // selected DVB ep at dvb_alt 750 unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc 751 // transfers for DVB 752 char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer 753 754 // helper funcs that call usb_control_msg 755 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, 756 char *buf, int len); 757 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); 758 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, 759 char *buf, int len); 760 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, 761 char *buf, int len); 762 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); 763 764 enum em28xx_mode mode; 765 766 // Button state polling 767 struct delayed_work buttons_query_work; 768 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 769 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 770 u8 num_button_polling_addresses; 771 u16 button_polling_interval; // [ms] 772 // Snapshot button input device 773 char snapshot_button_path[30]; // path of the input dev 774 struct input_dev *sbutton_input_dev; 775 776 #ifdef CONFIG_MEDIA_CONTROLLER 777 struct media_device *media_dev; 778 struct media_entity input_ent[MAX_EM28XX_INPUT]; 779 struct media_pad input_pad[MAX_EM28XX_INPUT]; 780 #endif 781 782 struct em28xx *dev_next; 783 int ts; 784 }; 785 786 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 787 788 struct em28xx_ops { 789 struct list_head next; 790 char *name; 791 int id; 792 int (*init)(struct em28xx *dev); 793 int (*fini)(struct em28xx *dev); 794 int (*suspend)(struct em28xx *dev); 795 int (*resume)(struct em28xx *dev); 796 }; 797 798 /* Provided by em28xx-i2c.c */ 799 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus); 800 int em28xx_i2c_register(struct em28xx *dev, unsigned int bus, 801 enum em28xx_i2c_algo_type algo_type); 802 int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus); 803 804 /* Provided by em28xx-core.c */ 805 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 806 char *buf, int len); 807 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 808 int em28xx_read_reg(struct em28xx *dev, u16 reg); 809 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 810 int len); 811 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 812 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 813 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 814 u8 bitmask); 815 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 816 817 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 818 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 819 820 int em28xx_audio_analog_set(struct em28xx *dev); 821 int em28xx_audio_setup(struct em28xx *dev); 822 823 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 824 enum em28xx_led_role role); 825 int em28xx_capture_start(struct em28xx *dev, int start); 826 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 827 int num_bufs, int max_pkt_size, int packet_multiplier); 828 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 829 int xfer_bulk, 830 int num_bufs, int max_pkt_size, int packet_multiplier, 831 int (*urb_data_copy) 832 (struct em28xx *dev, struct urb *urb)); 833 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 834 void em28xx_stop_urbs(struct em28xx *dev); 835 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 836 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio); 837 int em28xx_register_extension(struct em28xx_ops *dev); 838 void em28xx_unregister_extension(struct em28xx_ops *dev); 839 void em28xx_init_extension(struct em28xx *dev); 840 void em28xx_close_extension(struct em28xx *dev); 841 int em28xx_suspend_extension(struct em28xx *dev); 842 int em28xx_resume_extension(struct em28xx *dev); 843 844 /* Provided by em28xx-cards.c */ 845 extern const struct em28xx_board em28xx_boards[]; 846 extern struct usb_device_id em28xx_id_table[]; 847 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 848 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 849 void em28xx_free_device(struct kref *ref); 850 851 /* Provided by em28xx-camera.c */ 852 int em28xx_detect_sensor(struct em28xx *dev); 853 int em28xx_init_camera(struct em28xx *dev); 854 855 #endif 856