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 93 143 144 /* Limits minimum and default number of buffers */ 145 #define EM28XX_MIN_BUF 4 146 #define EM28XX_DEF_BUF 8 147 148 /*Limits the max URB message size */ 149 #define URB_MAX_CTRL_SIZE 80 150 151 /* Params for validated field */ 152 #define EM28XX_BOARD_NOT_VALIDATED 1 153 #define EM28XX_BOARD_VALIDATED 0 154 155 /* Params for em28xx_cmd() audio */ 156 #define EM28XX_START_AUDIO 1 157 #define EM28XX_STOP_AUDIO 0 158 159 /* maximum number of em28xx boards */ 160 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 161 162 /* maximum number of frames that can be queued */ 163 #define EM28XX_NUM_FRAMES 5 164 /* number of frames that get used for v4l2_read() */ 165 #define EM28XX_NUM_READ_FRAMES 2 166 167 /* number of buffers for isoc transfers */ 168 #define EM28XX_NUM_BUFS 5 169 #define EM28XX_DVB_NUM_BUFS 5 170 171 /* max number of I2C buses on em28xx devices */ 172 #define NUM_I2C_BUSES 2 173 174 /* isoc transfers: number of packets for each buffer 175 windows requests only 64 packets .. so we better do the same 176 this is what I found out for all alternate numbers there! 177 */ 178 #define EM28XX_NUM_ISOC_PACKETS 64 179 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 180 181 /* bulk transfers: transfer buffer size = packet size * packet multiplier 182 USB 2.0 spec says bulk packet size is always 512 bytes 183 */ 184 #define EM28XX_BULK_PACKET_MULTIPLIER 384 185 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 186 187 #define EM28XX_INTERLACED_DEFAULT 1 188 189 /* 190 * Time in msecs to wait for i2c xfers to finish. 191 * 35ms is the maximum time a SMBUS device could wait when 192 * clock stretching is used. As the transfer itself will take 193 * some time to happen, set it to 35 ms. 194 * 195 * Ok, I2C doesn't specify any limit. So, eventually, we may need 196 * to increase this timeout. 197 * 198 * FIXME: this assumes that an I2C message is not longer than 1ms. 199 * This is actually dependent on the I2C bus speed, although most 200 * devices use a 100kHz clock. So, this assumtion is true most of 201 * the time. 202 */ 203 #define EM28XX_I2C_XFER_TIMEOUT 36 204 205 /* time in msecs to wait for AC97 xfers to finish */ 206 #define EM28XX_AC97_XFER_TIMEOUT 100 207 208 /* max. number of button state polling addresses */ 209 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX 5 210 211 enum em28xx_mode { 212 EM28XX_SUSPEND, 213 EM28XX_ANALOG_MODE, 214 EM28XX_DIGITAL_MODE, 215 }; 216 217 218 struct em28xx; 219 220 struct em28xx_usb_bufs { 221 /* max packet size of isoc transaction */ 222 int max_pkt_size; 223 224 /* number of packets in each buffer */ 225 int num_packets; 226 227 /* number of allocated urbs */ 228 int num_bufs; 229 230 /* urb for isoc/bulk transfers */ 231 struct urb **urb; 232 233 /* transfer buffers for isoc/bulk transfer */ 234 char **transfer_buffer; 235 }; 236 237 struct em28xx_usb_ctl { 238 /* isoc/bulk transfer buffers for analog mode */ 239 struct em28xx_usb_bufs analog_bufs; 240 241 /* isoc/bulk transfer buffers for digital mode */ 242 struct em28xx_usb_bufs digital_bufs; 243 244 /* Stores already requested buffers */ 245 struct em28xx_buffer *vid_buf; 246 struct em28xx_buffer *vbi_buf; 247 248 /* copy data from URB */ 249 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb); 250 251 }; 252 253 /* Struct to enumberate video formats */ 254 struct em28xx_fmt { 255 char *name; 256 u32 fourcc; /* v4l2 format id */ 257 int depth; 258 int reg; 259 }; 260 261 /* buffer for one video frame */ 262 struct em28xx_buffer { 263 /* common v4l buffer stuff -- must be first */ 264 struct vb2_buffer vb; 265 struct list_head list; 266 267 void *mem; 268 unsigned int length; 269 int top_field; 270 271 /* counter to control buffer fill */ 272 unsigned int pos; 273 /* NOTE; in interlaced mode, this value is reset to zero at 274 * the start of each new field (not frame !) */ 275 276 /* pointer to vmalloc memory address in vb */ 277 char *vb_buf; 278 }; 279 280 struct em28xx_dmaqueue { 281 struct list_head active; 282 283 wait_queue_head_t wq; 284 }; 285 286 /* inputs */ 287 288 #define MAX_EM28XX_INPUT 4 289 enum enum28xx_itype { 290 EM28XX_VMUX_COMPOSITE1 = 1, 291 EM28XX_VMUX_COMPOSITE2, 292 EM28XX_VMUX_COMPOSITE3, 293 EM28XX_VMUX_COMPOSITE4, 294 EM28XX_VMUX_SVIDEO, 295 EM28XX_VMUX_TELEVISION, 296 EM28XX_VMUX_CABLE, 297 EM28XX_VMUX_DVB, 298 EM28XX_VMUX_DEBUG, 299 EM28XX_RADIO, 300 }; 301 302 enum em28xx_ac97_mode { 303 EM28XX_NO_AC97 = 0, 304 EM28XX_AC97_EM202, 305 EM28XX_AC97_SIGMATEL, 306 EM28XX_AC97_OTHER, 307 }; 308 309 struct em28xx_audio_mode { 310 enum em28xx_ac97_mode ac97; 311 312 u16 ac97_feat; 313 u32 ac97_vendor_id; 314 315 unsigned int has_audio:1; 316 317 u8 i2s_samplerates; 318 }; 319 320 /* em28xx has two audio inputs: tuner and line in. 321 However, on most devices, an auxiliary AC97 codec device is used. 322 The AC97 device may have several different inputs and outputs, 323 depending on their model. So, it is possible to use AC97 mixer to 324 address more than two different entries. 325 */ 326 enum em28xx_amux { 327 /* This is the only entry for em28xx tuner input */ 328 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 329 330 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 331 332 /* Some less-common mixer setups */ 333 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 334 EM28XX_AMUX_PHONE, 335 EM28XX_AMUX_MIC, 336 EM28XX_AMUX_CD, 337 EM28XX_AMUX_AUX, 338 EM28XX_AMUX_PCM_OUT, 339 }; 340 341 enum em28xx_aout { 342 /* AC97 outputs */ 343 EM28XX_AOUT_MASTER = 1 << 0, 344 EM28XX_AOUT_LINE = 1 << 1, 345 EM28XX_AOUT_MONO = 1 << 2, 346 EM28XX_AOUT_LFE = 1 << 3, 347 EM28XX_AOUT_SURR = 1 << 4, 348 349 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 350 EM28XX_AOUT_PCM_IN = 1 << 7, 351 352 /* Bits 10-8 are used to indicate the PCM IN record select */ 353 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 354 EM28XX_AOUT_PCM_CD = 1 << 8, 355 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 356 EM28XX_AOUT_PCM_AUX = 3 << 8, 357 EM28XX_AOUT_PCM_LINE = 4 << 8, 358 EM28XX_AOUT_PCM_STEREO = 5 << 8, 359 EM28XX_AOUT_PCM_MONO = 6 << 8, 360 EM28XX_AOUT_PCM_PHONE = 7 << 8, 361 }; 362 363 static inline int ac97_return_record_select(int a_out) 364 { 365 return (a_out & 0x700) >> 8; 366 } 367 368 struct em28xx_reg_seq { 369 int reg; 370 unsigned char val, mask; 371 int sleep; 372 }; 373 374 struct em28xx_input { 375 enum enum28xx_itype type; 376 unsigned int vmux; 377 enum em28xx_amux amux; 378 enum em28xx_aout aout; 379 struct em28xx_reg_seq *gpio; 380 }; 381 382 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 383 384 enum em28xx_decoder { 385 EM28XX_NODECODER = 0, 386 EM28XX_TVP5150, 387 EM28XX_SAA711X, 388 }; 389 390 enum em28xx_sensor { 391 EM28XX_NOSENSOR = 0, 392 EM28XX_MT9V011, 393 EM28XX_MT9M001, 394 EM28XX_MT9M111, 395 EM28XX_OV2640, 396 }; 397 398 enum em28xx_adecoder { 399 EM28XX_NOADECODER = 0, 400 EM28XX_TVAUDIO, 401 }; 402 403 enum em28xx_led_role { 404 EM28XX_LED_ANALOG_CAPTURING = 0, 405 EM28XX_LED_DIGITAL_CAPTURING, 406 EM28XX_LED_ILLUMINATION, 407 EM28XX_NUM_LED_ROLES, /* must be the last */ 408 }; 409 410 struct em28xx_led { 411 enum em28xx_led_role role; 412 u8 gpio_reg; 413 u8 gpio_mask; 414 bool inverted; 415 }; 416 417 enum em28xx_button_role { 418 EM28XX_BUTTON_SNAPSHOT = 0, 419 EM28XX_BUTTON_ILLUMINATION, 420 EM28XX_NUM_BUTTON_ROLES, /* must be the last */ 421 }; 422 423 struct em28xx_button { 424 enum em28xx_button_role role; 425 u8 reg_r; 426 u8 reg_clearing; 427 u8 mask; 428 bool inverted; 429 }; 430 431 struct em28xx_board { 432 char *name; 433 int vchannels; 434 int tuner_type; 435 int tuner_addr; 436 unsigned def_i2c_bus; /* Default I2C bus */ 437 438 /* i2c flags */ 439 unsigned int tda9887_conf; 440 441 /* GPIO sequences */ 442 struct em28xx_reg_seq *dvb_gpio; 443 struct em28xx_reg_seq *suspend_gpio; 444 struct em28xx_reg_seq *tuner_gpio; 445 struct em28xx_reg_seq *mute_gpio; 446 447 unsigned int is_em2800:1; 448 unsigned int has_msp34xx:1; 449 unsigned int mts_firmware:1; 450 unsigned int max_range_640_480:1; 451 unsigned int has_dvb:1; 452 unsigned int is_webcam:1; 453 unsigned int valid:1; 454 unsigned int has_ir_i2c:1; 455 456 unsigned char xclk, i2c_speed; 457 unsigned char radio_addr; 458 unsigned short tvaudio_addr; 459 460 enum em28xx_decoder decoder; 461 enum em28xx_adecoder adecoder; 462 463 struct em28xx_input input[MAX_EM28XX_INPUT]; 464 struct em28xx_input radio; 465 char *ir_codes; 466 467 /* LEDs that need to be controlled explicitly */ 468 struct em28xx_led *leds; 469 470 /* Buttons */ 471 struct em28xx_button *buttons; 472 }; 473 474 struct em28xx_eeprom { 475 u8 id[4]; /* 1a eb 67 95 */ 476 __le16 vendor_ID; 477 __le16 product_ID; 478 479 __le16 chip_conf; 480 481 __le16 board_conf; 482 483 __le16 string1, string2, string3; 484 485 u8 string_idx_table; 486 }; 487 488 #define EM28XX_CAPTURE_STREAM_EN 1 489 490 /* em28xx extensions */ 491 #define EM28XX_AUDIO 0x10 492 #define EM28XX_DVB 0x20 493 #define EM28XX_RC 0x30 494 #define EM28XX_V4L2 0x40 495 496 /* em28xx resource types (used for res_get/res_lock etc */ 497 #define EM28XX_RESOURCE_VIDEO 0x01 498 #define EM28XX_RESOURCE_VBI 0x02 499 500 struct em28xx_audio { 501 char name[50]; 502 unsigned num_urb; 503 char **transfer_buffer; 504 struct urb **urb; 505 struct usb_device *udev; 506 unsigned int capture_transfer_done; 507 struct snd_pcm_substream *capture_pcm_substream; 508 509 unsigned int hwptr_done_capture; 510 struct snd_card *sndcard; 511 512 size_t period; 513 514 int users; 515 spinlock_t slock; 516 }; 517 518 struct em28xx; 519 520 struct em28xx_fh { 521 struct v4l2_fh fh; 522 struct em28xx *dev; 523 524 enum v4l2_buf_type type; 525 }; 526 527 enum em28xx_i2c_algo_type { 528 EM28XX_I2C_ALGO_EM28XX = 0, 529 EM28XX_I2C_ALGO_EM2800, 530 EM28XX_I2C_ALGO_EM25XX_BUS_B, 531 }; 532 533 struct em28xx_i2c_bus { 534 struct em28xx *dev; 535 536 unsigned bus; 537 enum em28xx_i2c_algo_type algo_type; 538 }; 539 540 /* main device struct */ 541 struct em28xx { 542 struct kref ref; 543 544 /* generic device properties */ 545 char name[30]; /* name (including minor) of the device */ 546 int model; /* index in the device_data struct */ 547 int devno; /* marks the number of this device */ 548 enum em28xx_chip_id chip_id; 549 550 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 551 unsigned char disconnected:1; /* device has been diconnected */ 552 unsigned int has_video:1; 553 unsigned int has_audio_class:1; 554 unsigned int has_alsa_audio:1; 555 unsigned int is_audio_only:1; 556 557 struct v4l2_device v4l2_dev; 558 struct v4l2_ctrl_handler ctrl_handler; 559 struct v4l2_clk *clk; 560 struct em28xx_board board; 561 562 /* Webcam specific fields */ 563 enum em28xx_sensor em28xx_sensor; 564 int sensor_xres, sensor_yres; 565 int sensor_xtal; 566 567 /* Progressive (non-interlaced) mode */ 568 int progressive; 569 570 /* Vinmode/Vinctl used at the driver */ 571 int vinmode, vinctl; 572 573 /* Controls audio streaming */ 574 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */ 575 atomic_t stream_started; /* stream should be running if true */ 576 577 struct em28xx_fmt *format; 578 579 struct em28xx_IR *ir; 580 581 /* Some older em28xx chips needs a waiting time after writing */ 582 unsigned int wait_after_write; 583 584 struct list_head devlist; 585 586 u32 i2s_speed; /* I2S speed for audio digital stream */ 587 588 struct em28xx_audio_mode audio_mode; 589 590 int tuner_type; /* type of the tuner */ 591 int tuner_addr; /* tuner address */ 592 int tda9887_conf; 593 594 /* i2c i/o */ 595 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 596 struct i2c_client i2c_client[NUM_I2C_BUSES]; 597 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 598 599 unsigned char eeprom_addrwidth_16bit:1; 600 unsigned def_i2c_bus; /* Default I2C bus */ 601 unsigned cur_i2c_bus; /* Current I2C bus */ 602 struct rt_mutex i2c_bus_lock; 603 604 /* video for linux */ 605 int users; /* user count for exclusive use */ 606 int streaming_users; /* Number of actively streaming users */ 607 struct video_device *vdev; /* video for linux device struct */ 608 v4l2_std_id norm; /* selected tv norm */ 609 int ctl_freq; /* selected frequency */ 610 unsigned int ctl_input; /* selected input */ 611 unsigned int ctl_ainput;/* selected audio input */ 612 unsigned int ctl_aoutput;/* selected audio output */ 613 int mute; 614 int volume; 615 /* frame properties */ 616 int width; /* current frame width */ 617 int height; /* current frame height */ 618 unsigned hscale; /* horizontal scale factor (see datasheet) */ 619 unsigned vscale; /* vertical scale factor (see datasheet) */ 620 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 621 unsigned int video_bytesread; /* Number of bytes read */ 622 623 unsigned long hash; /* eeprom hash - for boards with generic ID */ 624 unsigned long i2c_hash; /* i2c devicelist hash - 625 for boards with generic ID */ 626 627 struct em28xx_audio adev; 628 629 /* capture state tracking */ 630 int capture_type; 631 unsigned char top_field:1; 632 int vbi_read; 633 unsigned int vbi_width; 634 unsigned int vbi_height; /* lines per field */ 635 636 struct work_struct request_module_wk; 637 638 /* locks */ 639 struct mutex lock; 640 struct mutex ctrl_urb_lock; /* protects urb_buf */ 641 /* spinlock_t queue_lock; */ 642 struct list_head inqueue, outqueue; 643 struct video_device *vbi_dev; 644 struct video_device *radio_dev; 645 646 /* Videobuf2 */ 647 struct vb2_queue vb_vidq; 648 struct vb2_queue vb_vbiq; 649 struct mutex vb_queue_lock; 650 struct mutex vb_vbi_queue_lock; 651 652 /* resources in use */ 653 unsigned int resources; 654 655 /* eeprom content */ 656 u8 *eedata; 657 u16 eedata_len; 658 659 /* Isoc control struct */ 660 struct em28xx_dmaqueue vidq; 661 struct em28xx_dmaqueue vbiq; 662 struct em28xx_usb_ctl usb_ctl; 663 spinlock_t slock; 664 665 unsigned int field_count; 666 unsigned int vbi_field_count; 667 668 /* usb transfer */ 669 struct usb_device *udev; /* the usb device */ 670 u8 ifnum; /* number of the assigned usb interface */ 671 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 672 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 673 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 674 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 675 int alt; /* alternate setting */ 676 int max_pkt_size; /* max packet size of the selected ep at alt */ 677 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 678 URB buffer size definition */ 679 int num_alt; /* number of alternative settings */ 680 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 681 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 682 transfers for analog */ 683 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 684 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 685 selected DVB ep at dvb_alt */ 686 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 687 transfers for DVB */ 688 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 689 690 /* helper funcs that call usb_control_msg */ 691 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 692 char *buf, int len); 693 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 694 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 695 char *buf, int len); 696 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 697 char *buf, int len); 698 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 699 700 enum em28xx_mode mode; 701 702 /* Button state polling */ 703 struct delayed_work buttons_query_work; 704 u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 705 u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX]; 706 u8 num_button_polling_addresses; 707 u16 button_polling_interval; /* [ms] */ 708 /* Snapshot button input device */ 709 char snapshot_button_path[30]; /* path of the input dev */ 710 struct input_dev *sbutton_input_dev; 711 712 struct em28xx_dvb *dvb; 713 }; 714 715 #define kref_to_dev(d) container_of(d, struct em28xx, ref) 716 717 struct em28xx_ops { 718 struct list_head next; 719 char *name; 720 int id; 721 int (*init)(struct em28xx *); 722 int (*fini)(struct em28xx *); 723 int (*suspend)(struct em28xx *); 724 int (*resume)(struct em28xx *); 725 }; 726 727 /* Provided by em28xx-i2c.c */ 728 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 729 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 730 enum em28xx_i2c_algo_type algo_type); 731 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 732 733 /* Provided by em28xx-core.c */ 734 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 735 char *buf, int len); 736 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 737 int em28xx_read_reg(struct em28xx *dev, u16 reg); 738 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 739 int len); 740 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 741 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 742 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 743 u8 bitmask); 744 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask); 745 746 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 747 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 748 749 int em28xx_audio_analog_set(struct em28xx *dev); 750 int em28xx_audio_setup(struct em28xx *dev); 751 752 const struct em28xx_led *em28xx_find_led(struct em28xx *dev, 753 enum em28xx_led_role role); 754 int em28xx_capture_start(struct em28xx *dev, int start); 755 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 756 int num_bufs, int max_pkt_size, int packet_multiplier); 757 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 758 int xfer_bulk, 759 int num_bufs, int max_pkt_size, int packet_multiplier, 760 int (*urb_data_copy) 761 (struct em28xx *dev, struct urb *urb)); 762 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 763 void em28xx_stop_urbs(struct em28xx *dev); 764 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 765 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 766 int em28xx_register_extension(struct em28xx_ops *dev); 767 void em28xx_unregister_extension(struct em28xx_ops *dev); 768 void em28xx_init_extension(struct em28xx *dev); 769 void em28xx_close_extension(struct em28xx *dev); 770 int em28xx_suspend_extension(struct em28xx *dev); 771 int em28xx_resume_extension(struct em28xx *dev); 772 773 /* Provided by em28xx-cards.c */ 774 extern struct em28xx_board em28xx_boards[]; 775 extern struct usb_device_id em28xx_id_table[]; 776 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 777 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl); 778 void em28xx_free_device(struct kref *ref); 779 780 /* Provided by em28xx-camera.c */ 781 int em28xx_detect_sensor(struct em28xx *dev); 782 int em28xx_init_camera(struct em28xx *dev); 783 784 /* printk macros */ 785 786 #define em28xx_err(fmt, arg...) do {\ 787 printk(KERN_ERR fmt , ##arg); } while (0) 788 789 #define em28xx_errdev(fmt, arg...) do {\ 790 printk(KERN_ERR "%s: "fmt,\ 791 dev->name , ##arg); } while (0) 792 793 #define em28xx_info(fmt, arg...) do {\ 794 printk(KERN_INFO "%s: "fmt,\ 795 dev->name , ##arg); } while (0) 796 #define em28xx_warn(fmt, arg...) do {\ 797 printk(KERN_WARNING "%s: "fmt,\ 798 dev->name , ##arg); } while (0) 799 800 static inline int em28xx_compression_disable(struct em28xx *dev) 801 { 802 /* side effect of disabling scaler and mixer */ 803 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 804 } 805 806 /*FIXME: maxw should be dependent of alt mode */ 807 static inline unsigned int norm_maxw(struct em28xx *dev) 808 { 809 if (dev->board.is_webcam) 810 return dev->sensor_xres; 811 812 if (dev->board.max_range_640_480) 813 return 640; 814 815 return 720; 816 } 817 818 static inline unsigned int norm_maxh(struct em28xx *dev) 819 { 820 if (dev->board.is_webcam) 821 return dev->sensor_yres; 822 823 if (dev->board.max_range_640_480) 824 return 480; 825 826 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 827 } 828 #endif 829