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 * @fourcc: v4l2 format id 255 * @depth: mean number of bits to represent a pixel 256 * @reg: em28xx register value to set it 257 */ 258 struct em28xx_fmt { 259 u32 fourcc; 260 int depth; 261 int reg; 262 }; 263 264 /** 265 * struct em28xx_buffer- buffer for storing one video frame 266 * 267 * @vb: common v4l buffer stuff 268 * @list: List to associate it with the other buffers 269 * @mem: pointer to the buffer, as returned by vb2_plane_vaddr() 270 * @length: length of the buffer, as returned by vb2_plane_size() 271 * @top_field: If non-zero, indicate that the buffer is the top field 272 * @pos: Indicate the next position of the buffer to be filled. 273 * @vb_buf: pointer to vmalloc memory address in vb 274 * 275 * .. note:: 276 * 277 * in interlaced mode, @pos is reset to zero at the start of each new 278 * field (not frame !) 279 */ 280 struct em28xx_buffer { 281 struct vb2_v4l2_buffer vb; /* must be first */ 282 283 struct list_head list; 284 285 void *mem; 286 unsigned int length; 287 int top_field; 288 289 unsigned int pos; 290 291 char *vb_buf; 292 }; 293 294 struct em28xx_dmaqueue { 295 struct list_head active; 296 297 wait_queue_head_t wq; 298 }; 299 300 /* inputs */ 301 302 #define MAX_EM28XX_INPUT 4 303 enum enum28xx_itype { 304 EM28XX_VMUX_COMPOSITE = 1, 305 EM28XX_VMUX_SVIDEO, 306 EM28XX_VMUX_TELEVISION, 307 EM28XX_RADIO, 308 }; 309 310 enum em28xx_ac97_mode { 311 EM28XX_NO_AC97 = 0, 312 EM28XX_AC97_EM202, 313 EM28XX_AC97_SIGMATEL, 314 EM28XX_AC97_OTHER, 315 }; 316 317 struct em28xx_audio_mode { 318 enum em28xx_ac97_mode ac97; 319 }; 320 321 enum em28xx_int_audio_type { 322 EM28XX_INT_AUDIO_NONE = 0, 323 EM28XX_INT_AUDIO_AC97, 324 EM28XX_INT_AUDIO_I2S, 325 }; 326 327 enum em28xx_usb_audio_type { 328 EM28XX_USB_AUDIO_NONE = 0, 329 EM28XX_USB_AUDIO_CLASS, 330 EM28XX_USB_AUDIO_VENDOR, 331 }; 332 333 /** 334 * em28xx_amux - describes the type of audio input used by em28xx 335 * 336 * @EM28XX_AMUX_UNUSED: 337 * Used only on em28xx dev->map field, in order to mark an entry 338 * as unused. 339 * @EM28XX_AMUX_VIDEO: 340 * On devices without AC97, this is the only value that it is currently 341 * allowed. 342 * On devices with AC97, it corresponds to the AC97 mixer "Video" control. 343 * @EM28XX_AMUX_LINE_IN: 344 * Only for devices with AC97. Corresponds to AC97 mixer "Line In". 345 * @EM28XX_AMUX_VIDEO2: 346 * Only for devices with AC97. It means that em28xx should use "Line In" 347 * And AC97 should use the "Video" mixer control. 348 * @EM28XX_AMUX_PHONE: 349 * Only for devices with AC97. Corresponds to AC97 mixer "Phone". 350 * @EM28XX_AMUX_MIC: 351 * Only for devices with AC97. Corresponds to AC97 mixer "Mic". 352 * @EM28XX_AMUX_CD: 353 * Only for devices with AC97. Corresponds to AC97 mixer "CD". 354 * @EM28XX_AMUX_AUX: 355 * Only for devices with AC97. Corresponds to AC97 mixer "Aux". 356 * @EM28XX_AMUX_PCM_OUT: 357 * Only for devices with AC97. Corresponds to AC97 mixer "PCM out". 358 * 359 * The em28xx chip itself has only two audio inputs: tuner and line in. 360 * On almost all devices, only the tuner input is used. 361 * 362 * However, on most devices, an auxiliary AC97 codec device is used, 363 * usually connected to the em28xx tuner input (except for 364 * @EM28XX_AMUX_LINE_IN). 365 * 366 * The AC97 device typically have several different inputs and outputs. 367 * The exact number and description depends on their model. 368 * 369 * It is possible to AC97 to mixer more than one different entries at the 370 * same time, via the alsa mux. 371 */ 372 enum em28xx_amux { 373 EM28XX_AMUX_UNUSED = -1, 374 EM28XX_AMUX_VIDEO = 0, 375 EM28XX_AMUX_LINE_IN, 376 377 /* Some less-common mixer setups */ 378 EM28XX_AMUX_VIDEO2, 379 EM28XX_AMUX_PHONE, 380 EM28XX_AMUX_MIC, 381 EM28XX_AMUX_CD, 382 EM28XX_AMUX_AUX, 383 EM28XX_AMUX_PCM_OUT, 384 }; 385 386 enum em28xx_aout { 387 /* AC97 outputs */ 388 EM28XX_AOUT_MASTER = BIT(0), 389 EM28XX_AOUT_LINE = BIT(1), 390 EM28XX_AOUT_MONO = BIT(2), 391 EM28XX_AOUT_LFE = BIT(3), 392 EM28XX_AOUT_SURR = BIT(4), 393 394 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 395 EM28XX_AOUT_PCM_IN = BIT(7), 396 397 /* Bits 10-8 are used to indicate the PCM IN record select */ 398 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 399 EM28XX_AOUT_PCM_CD = 1 << 8, 400 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 401 EM28XX_AOUT_PCM_AUX = 3 << 8, 402 EM28XX_AOUT_PCM_LINE = 4 << 8, 403 EM28XX_AOUT_PCM_STEREO = 5 << 8, 404 EM28XX_AOUT_PCM_MONO = 6 << 8, 405 EM28XX_AOUT_PCM_PHONE = 7 << 8, 406 }; 407 408 static inline int ac97_return_record_select(int a_out) 409 { 410 return (a_out & 0x700) >> 8; 411 } 412 413 struct em28xx_reg_seq { 414 int reg; 415 unsigned char val, mask; 416 int sleep; 417 }; 418 419 struct em28xx_input { 420 enum enum28xx_itype type; 421 unsigned int vmux; 422 enum em28xx_amux amux; 423 enum em28xx_aout aout; 424 const struct em28xx_reg_seq *gpio; 425 }; 426 427 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 428 429 enum em28xx_decoder { 430 EM28XX_NODECODER = 0, 431 EM28XX_TVP5150, 432 EM28XX_SAA711X, 433 }; 434 435 enum em28xx_sensor { 436 EM28XX_NOSENSOR = 0, 437 EM28XX_MT9V011, 438 EM28XX_MT9M001, 439 EM28XX_MT9M111, 440 EM28XX_OV2640, 441 }; 442 443 enum em28xx_adecoder { 444 EM28XX_NOADECODER = 0, 445 EM28XX_TVAUDIO, 446 }; 447 448 enum em28xx_led_role { 449 EM28XX_LED_ANALOG_CAPTURING = 0, 450 EM28XX_LED_DIGITAL_CAPTURING, 451 EM28XX_LED_DIGITAL_CAPTURING_TS2, 452 EM28XX_LED_ILLUMINATION, 453 EM28XX_NUM_LED_ROLES, /* must be the last */ 454 }; 455 456 struct em28xx_led { 457 enum em28xx_led_role role; 458 u8 gpio_reg; 459 u8 gpio_mask; 460 bool inverted; 461 }; 462 463 enum em28xx_button_role { 464 EM28XX_BUTTON_SNAPSHOT = 0, 465 EM28XX_BUTTON_ILLUMINATION, 466 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 467 }; 468 469 struct em28xx_button { 470 enum em28xx_button_role role; 471 u8 reg_r; 472 u8 reg_clearing; 473 u8 mask; 474 bool inverted; 475 }; 476 477 struct em28xx_board { 478 char *name; 479 int vchannels; 480 int tuner_type; 481 int tuner_addr; 482 unsigned int def_i2c_bus; /* Default I2C bus */ 483 484 /* i2c flags */ 485 unsigned int tda9887_conf; 486 487 /* GPIO sequences */ 488 const struct em28xx_reg_seq *dvb_gpio; 489 const struct em28xx_reg_seq *suspend_gpio; 490 const struct em28xx_reg_seq *tuner_gpio; 491 const struct em28xx_reg_seq *mute_gpio; 492 493 unsigned int is_em2800:1; 494 unsigned int has_msp34xx:1; 495 unsigned int mts_firmware:1; 496 unsigned int max_range_640_480:1; 497 unsigned int has_dvb:1; 498 unsigned int has_dual_ts:1; 499 unsigned int is_webcam:1; 500 unsigned int valid:1; 501 unsigned int has_ir_i2c:1; 502 503 unsigned char xclk, i2c_speed; 504 unsigned char radio_addr; 505 unsigned short tvaudio_addr; 506 507 enum em28xx_decoder decoder; 508 enum em28xx_adecoder adecoder; 509 510 struct em28xx_input input[MAX_EM28XX_INPUT]; 511 struct em28xx_input radio; 512 char *ir_codes; 513 514 /* LEDs that need to be controlled explicitly */ 515 struct em28xx_led *leds; 516 517 /* Buttons */ 518 const struct em28xx_button *buttons; 519 }; 520 521 struct em28xx_eeprom { 522 u8 id[4]; /* 1a eb 67 95 */ 523 __le16 vendor_ID; 524 __le16 product_ID; 525 526 __le16 chip_conf; 527 528 __le16 board_conf; 529 530 __le16 string1, string2, string3; 531 532 u8 string_idx_table; 533 }; 534 535 #define EM28XX_CAPTURE_STREAM_EN 1 536 537 /* em28xx extensions */ 538 #define EM28XX_AUDIO 0x10 539 #define EM28XX_DVB 0x20 540 #define EM28XX_RC 0x30 541 #define EM28XX_V4L2 0x40 542 543 /* em28xx resource types (used for res_get/res_lock etc */ 544 #define EM28XX_RESOURCE_VIDEO 0x01 545 #define EM28XX_RESOURCE_VBI 0x02 546 547 struct em28xx_v4l2 { 548 struct kref ref; 549 struct em28xx *dev; 550 551 struct v4l2_device v4l2_dev; 552 struct v4l2_ctrl_handler ctrl_handler; 553 554 struct video_device vdev; 555 struct video_device vbi_dev; 556 struct video_device radio_dev; 557 558 /* Videobuf2 */ 559 struct vb2_queue vb_vidq; 560 struct vb2_queue vb_vbiq; 561 struct mutex vb_queue_lock; /* Protects vb_vidq */ 562 struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */ 563 564 u8 vinmode; 565 u8 vinctl; 566 567 /* Camera specific fields */ 568 int sensor_xres; 569 int sensor_yres; 570 int sensor_xtal; 571 572 int users; /* user count for exclusive use */ 573 int streaming_users; /* number of actively streaming users */ 574 575 u32 frequency; /* selected tuner frequency */ 576 577 struct em28xx_fmt *format; 578 v4l2_std_id norm; /* selected tv norm */ 579 580 /* Progressive/interlaced mode */ 581 bool progressive; 582 int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */ 583 /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */ 584 585 /* Frame properties */ 586 int width; /* current frame width */ 587 int height; /* current frame height */ 588 unsigned int hscale; /* horizontal scale factor (see datasheet) */ 589 unsigned int vscale; /* vertical scale factor (see datasheet) */ 590 unsigned int vbi_width; 591 unsigned int vbi_height; /* lines per field */ 592 593 /* Capture state tracking */ 594 int capture_type; 595 bool top_field; 596 int vbi_read; 597 unsigned int field_count; 598 599 #ifdef CONFIG_MEDIA_CONTROLLER 600 struct media_pad video_pad, vbi_pad; 601 struct media_entity *decoder; 602 #endif 603 }; 604 605 struct em28xx_audio { 606 char name[50]; 607 unsigned int num_urb; 608 char **transfer_buffer; 609 struct urb **urb; 610 struct usb_device *udev; 611 unsigned int capture_transfer_done; 612 struct snd_pcm_substream *capture_pcm_substream; 613 614 unsigned int hwptr_done_capture; 615 struct snd_card *sndcard; 616 617 size_t period; 618 619 int users; 620 spinlock_t slock; /* Protects struct em28xx_audio */ 621 622 /* Controls streaming */ 623 struct work_struct wq_trigger; /* trigger to start/stop audio */ 624 atomic_t stream_started; /* stream should be running if true */ 625 }; 626 627 struct em28xx; 628 629 enum em28xx_i2c_algo_type { 630 EM28XX_I2C_ALGO_EM28XX = 0, 631 EM28XX_I2C_ALGO_EM2800, 632 EM28XX_I2C_ALGO_EM25XX_BUS_B, 633 }; 634 635 struct em28xx_i2c_bus { 636 struct em28xx *dev; 637 638 unsigned int bus; 639 enum em28xx_i2c_algo_type algo_type; 640 }; 641 642 /* main device struct */ 643 struct em28xx { 644 struct kref ref; 645 646 // Sub-module data 647 struct em28xx_v4l2 *v4l2; 648 struct em28xx_dvb *dvb; 649 struct em28xx_audio adev; 650 struct em28xx_IR *ir; 651 652 // generic device properties 653 int model; // index in the device_data struct 654 int devno; // marks the number of this device 655 enum em28xx_chip_id chip_id; 656 657 unsigned int is_em25xx:1; // em25xx/em276x/7x/8x family bridge 658 unsigned int disconnected:1; // device has been disconnected 659 unsigned int has_video:1; 660 unsigned int is_audio_only:1; 661 unsigned int is_webcam:1; 662 unsigned int has_msp34xx:1; 663 unsigned int i2c_speed:2; 664 enum em28xx_int_audio_type int_audio_type; 665 enum em28xx_usb_audio_type usb_audio_type; 666 unsigned char name[32]; 667 668 struct em28xx_board board; 669 670 enum em28xx_sensor em28xx_sensor; // camera specific 671 672 // Some older em28xx chips needs a waiting time after writing 673 unsigned int wait_after_write; 674 675 struct list_head devlist; 676 677 u32 i2s_speed; // I2S speed for audio digital stream 678 679 struct em28xx_audio_mode audio_mode; 680 681 int tuner_type; // type of the tuner 682 683 // i2c i/o 684 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 685 struct i2c_client i2c_client[NUM_I2C_BUSES]; 686 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 687 688 unsigned char eeprom_addrwidth_16bit:1; 689 unsigned int def_i2c_bus; // Default I2C bus 690 unsigned int cur_i2c_bus; // Current I2C bus 691 struct rt_mutex i2c_bus_lock; 692 693 // video for linux 694 unsigned int ctl_input; // selected input 695 unsigned int ctl_ainput;// selected audio input 696 unsigned int ctl_aoutput;// selected audio output 697 enum em28xx_amux amux_map[MAX_EM28XX_INPUT]; 698 699 int mute; 700 int volume; 701 702 unsigned long hash; // eeprom hash - for boards with generic ID 703 unsigned long i2c_hash; // i2c devicelist hash - 704 // for boards with generic ID 705 706 struct work_struct request_module_wk; 707 708 // locks 709 struct mutex lock; /* protects em28xx struct */ 710 struct mutex ctrl_urb_lock; /* protects urb_buf */ 711 712 // resources in use 713 unsigned int resources; 714 715 // eeprom content 716 u8 *eedata; 717 u16 eedata_len; 718 719 // Isoc control struct 720 struct em28xx_dmaqueue vidq; 721 struct em28xx_dmaqueue vbiq; 722 struct em28xx_usb_ctl usb_ctl; 723 724 spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */ 725 726 // usb transfer 727 struct usb_interface *intf; // the usb interface 728 u8 ifnum; // number of the assigned usb interface 729 u8 analog_ep_isoc; // address of isoc endpoint for analog 730 u8 analog_ep_bulk; // address of bulk endpoint for analog 731 u8 dvb_ep_isoc_ts2; // address of isoc endpoint for DVB TS2 732 u8 dvb_ep_bulk_ts2; // address of bulk endpoint for DVB TS2 733 u8 dvb_ep_isoc; // address of isoc endpoint for DVB 734 u8 dvb_ep_bulk; // address of bulk endpoint for DVB 735 int alt; // alternate setting 736 int max_pkt_size; // max packet size of the selected ep at alt 737 int packet_multiplier; // multiplier for wMaxPacketSize, used for 738 // URB buffer size definition 739 int num_alt; // number of alternative settings 740 unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize 741 unsigned int analog_xfer_bulk:1; // use bulk instead of isoc 742 // transfers for analog 743 int dvb_alt_isoc; // alternate setting for DVB isoc transfers 744 unsigned int dvb_max_pkt_size_isoc; // isoc max packet size of the 745 // selected DVB ep at dvb_alt 746 unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the 747 // selected DVB ep at dvb_alt 748 unsigned int dvb_xfer_bulk:1; // use bulk instead of isoc 749 // transfers for DVB 750 char urb_buf[URB_MAX_CTRL_SIZE]; // urb control msg buffer 751 752 // helper funcs that call usb_control_msg 753 int (*em28xx_write_regs)(struct em28xx *dev, u16 reg, 754 char *buf, int len); 755 int (*em28xx_read_reg)(struct em28xx *dev, u16 reg); 756 int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg, 757 char *buf, int len); 758 int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg, 759 char *buf, int len); 760 int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg); 761 762 enum em28xx_mode mode; 763 764 // Button state polling 765 struct delayed_work buttons_query_work; 766 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 767 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 768 u8 num_button_polling_addresses; 769 u16 button_polling_interval; // [ms] 770 // Snapshot button input device 771 char snapshot_button_path[30]; // path of the input dev 772 struct input_dev *sbutton_input_dev; 773 774 #ifdef CONFIG_MEDIA_CONTROLLER 775 struct media_device *media_dev; 776 struct media_entity input_ent[MAX_EM28XX_INPUT]; 777 struct media_pad input_pad[MAX_EM28XX_INPUT]; 778 #endif 779 780 struct em28xx *dev_next; 781 int ts; 782 }; 783 784 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 785 786 struct em28xx_ops { 787 struct list_head next; 788 char *name; 789 int id; 790 int (*init)(struct em28xx *dev); 791 int (*fini)(struct em28xx *dev); 792 int (*suspend)(struct em28xx *dev); 793 int (*resume)(struct em28xx *dev); 794 }; 795 796 /* Provided by em28xx-i2c.c */ 797 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus); 798 int em28xx_i2c_register(struct em28xx *dev, unsigned int bus, 799 enum em28xx_i2c_algo_type algo_type); 800 int em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus); 801 802 /* Provided by em28xx-core.c */ 803 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 804 char *buf, int len); 805 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 806 int em28xx_read_reg(struct em28xx *dev, u16 reg); 807 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 808 int len); 809 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 810 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 811 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 812 u8 bitmask); 813 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 814 815 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 816 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 817 818 int em28xx_audio_analog_set(struct em28xx *dev); 819 int em28xx_audio_setup(struct em28xx *dev); 820 821 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 822 enum em28xx_led_role role); 823 int em28xx_capture_start(struct em28xx *dev, int start); 824 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 825 int num_bufs, int max_pkt_size, int packet_multiplier); 826 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 827 int xfer_bulk, 828 int num_bufs, int max_pkt_size, int packet_multiplier, 829 int (*urb_data_copy) 830 (struct em28xx *dev, struct urb *urb)); 831 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 832 void em28xx_stop_urbs(struct em28xx *dev); 833 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 834 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio); 835 int em28xx_register_extension(struct em28xx_ops *dev); 836 void em28xx_unregister_extension(struct em28xx_ops *dev); 837 void em28xx_init_extension(struct em28xx *dev); 838 void em28xx_close_extension(struct em28xx *dev); 839 int em28xx_suspend_extension(struct em28xx *dev); 840 int em28xx_resume_extension(struct em28xx *dev); 841 842 /* Provided by em28xx-cards.c */ 843 extern const struct em28xx_board em28xx_boards[]; 844 extern struct usb_device_id em28xx_id_table[]; 845 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 846 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 847 void em28xx_free_device(struct kref *ref); 848 849 /* Provided by em28xx-camera.c */ 850 int em28xx_detect_sensor(struct em28xx *dev); 851 int em28xx_init_camera(struct em28xx *dev); 852 853 #endif 854