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 #include <linux/workqueue.h> 30 #include <linux/i2c.h> 31 #include <linux/mutex.h> 32 #include <linux/videodev2.h> 33 34 #include <media/videobuf2-vmalloc.h> 35 #include <media/v4l2-device.h> 36 #include <media/v4l2-ctrls.h> 37 #include <media/v4l2-fh.h> 38 #include <media/ir-kbd-i2c.h> 39 #include <media/rc-core.h> 40 #include "tuner-xc2028.h" 41 #include "xc5000.h" 42 #include "em28xx-reg.h" 43 44 /* Boards supported by driver */ 45 #define EM2800_BOARD_UNKNOWN 0 46 #define EM2820_BOARD_UNKNOWN 1 47 #define EM2820_BOARD_TERRATEC_CINERGY_250 2 48 #define EM2820_BOARD_PINNACLE_USB_2 3 49 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4 50 #define EM2820_BOARD_MSI_VOX_USB_2 5 51 #define EM2800_BOARD_TERRATEC_CINERGY_200 6 52 #define EM2800_BOARD_LEADTEK_WINFAST_USBII 7 53 #define EM2800_BOARD_KWORLD_USB2800 8 54 #define EM2820_BOARD_PINNACLE_DVC_90 9 55 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10 56 #define EM2880_BOARD_TERRATEC_HYBRID_XS 11 57 #define EM2820_BOARD_KWORLD_PVRTV2800RF 12 58 #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13 59 #define EM2820_BOARD_PROLINK_PLAYTV_USB2 14 60 #define EM2800_BOARD_VGEAR_POCKETTV 15 61 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950 16 62 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 63 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 64 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN 19 65 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20 66 #define EM2800_BOARD_GRABBEEX_USB2800 21 67 #define EM2750_BOARD_UNKNOWN 22 68 #define EM2750_BOARD_DLCW_130 23 69 #define EM2820_BOARD_DLINK_USB_TV 24 70 #define EM2820_BOARD_GADMEI_UTV310 25 71 #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26 72 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27 73 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28 74 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29 75 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30 76 #define EM2821_BOARD_USBGEAR_VD204 31 77 #define EM2821_BOARD_SUPERCOMP_USB_2 32 78 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE 33 79 #define EM2860_BOARD_TERRATEC_HYBRID_XS 34 80 #define EM2860_BOARD_TYPHOON_DVD_MAKER 35 81 #define EM2860_BOARD_NETGMBH_CAM 36 82 #define EM2860_BOARD_GADMEI_UTV330 37 83 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38 84 #define EM2861_BOARD_KWORLD_PVRTV_300U 39 85 #define EM2861_BOARD_PLEXTOR_PX_TV100U 40 86 #define EM2870_BOARD_KWORLD_350U 41 87 #define EM2870_BOARD_KWORLD_355U 42 88 #define EM2870_BOARD_TERRATEC_XS 43 89 #define EM2870_BOARD_TERRATEC_XS_MT2060 44 90 #define EM2870_BOARD_PINNACLE_PCTV_DVB 45 91 #define EM2870_BOARD_COMPRO_VIDEOMATE 46 92 #define EM2880_BOARD_KWORLD_DVB_305U 47 93 #define EM2880_BOARD_KWORLD_DVB_310U 48 94 #define EM2880_BOARD_MSI_DIGIVOX_AD 49 95 #define EM2880_BOARD_MSI_DIGIVOX_AD_II 50 96 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51 97 #define EM2881_BOARD_DNT_DA2_HYBRID 52 98 #define EM2881_BOARD_PINNACLE_HYBRID_PRO 53 99 #define EM2882_BOARD_KWORLD_VS_DVBT 54 100 #define EM2882_BOARD_TERRATEC_HYBRID_XS 55 101 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E 56 102 #define EM2883_BOARD_KWORLD_HYBRID_330U 57 103 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58 104 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850 60 105 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2 61 106 #define EM2820_BOARD_GADMEI_TVR200 62 107 #define EM2860_BOARD_KAIOMY_TVNPC_U2 63 108 #define EM2860_BOARD_EASYCAP 64 109 #define EM2820_BOARD_IODATA_GVMVP_SZ 65 110 #define EM2880_BOARD_EMPIRE_DUAL_TV 66 111 #define EM2860_BOARD_TERRATEC_GRABBY 67 112 #define EM2860_BOARD_TERRATEC_AV350 68 113 #define EM2882_BOARD_KWORLD_ATSC_315U 69 114 #define EM2882_BOARD_EVGA_INDTUBE 70 115 #define EM2820_BOARD_SILVERCREST_WEBCAM 71 116 #define EM2861_BOARD_GADMEI_UTV330PLUS 72 117 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX 73 118 #define EM2800_BOARD_VC211A 74 119 #define EM2882_BOARD_DIKOM_DK300 75 120 #define EM2870_BOARD_KWORLD_A340 76 121 #define EM2874_BOARD_LEADERSHIP_ISDBT 77 122 #define EM28174_BOARD_PCTV_290E 78 123 #define EM2884_BOARD_TERRATEC_H5 79 124 #define EM28174_BOARD_PCTV_460E 80 125 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C 81 126 #define EM2884_BOARD_CINERGY_HTC_STICK 82 127 #define EM2860_BOARD_HT_VIDBOX_NW03 83 128 #define EM2874_BOARD_MAXMEDIA_UB425_TC 84 129 #define EM2884_BOARD_PCTV_510E 85 130 #define EM2884_BOARD_PCTV_520E 86 131 #define EM2884_BOARD_TERRATEC_HTC_USB_XS 87 132 #define EM2884_BOARD_C3TECH_DIGITAL_DUO 88 133 #define EM2874_BOARD_DELOCK_61959 89 134 135 /* Limits minimum and default number of buffers */ 136 #define EM28XX_MIN_BUF 4 137 #define EM28XX_DEF_BUF 8 138 139 /*Limits the max URB message size */ 140 #define URB_MAX_CTRL_SIZE 80 141 142 /* Params for validated field */ 143 #define EM28XX_BOARD_NOT_VALIDATED 1 144 #define EM28XX_BOARD_VALIDATED 0 145 146 /* Params for em28xx_cmd() audio */ 147 #define EM28XX_START_AUDIO 1 148 #define EM28XX_STOP_AUDIO 0 149 150 /* maximum number of em28xx boards */ 151 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 152 153 /* maximum number of frames that can be queued */ 154 #define EM28XX_NUM_FRAMES 5 155 /* number of frames that get used for v4l2_read() */ 156 #define EM28XX_NUM_READ_FRAMES 2 157 158 /* number of buffers for isoc transfers */ 159 #define EM28XX_NUM_BUFS 5 160 #define EM28XX_DVB_NUM_BUFS 5 161 162 /* max number of I2C buses on em28xx devices */ 163 #define NUM_I2C_BUSES 2 164 165 /* isoc transfers: number of packets for each buffer 166 windows requests only 64 packets .. so we better do the same 167 this is what I found out for all alternate numbers there! 168 */ 169 #define EM28XX_NUM_ISOC_PACKETS 64 170 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 171 172 /* bulk transfers: transfer buffer size = packet size * packet multiplier 173 USB 2.0 spec says bulk packet size is always 512 bytes 174 */ 175 #define EM28XX_BULK_PACKET_MULTIPLIER 384 176 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 177 178 #define EM28XX_INTERLACED_DEFAULT 1 179 180 /* time in msecs to wait for i2c writes to finish */ 181 #define EM2800_I2C_XFER_TIMEOUT 20 182 183 enum em28xx_mode { 184 EM28XX_SUSPEND, 185 EM28XX_ANALOG_MODE, 186 EM28XX_DIGITAL_MODE, 187 }; 188 189 190 struct em28xx; 191 192 struct em28xx_usb_bufs { 193 /* max packet size of isoc transaction */ 194 int max_pkt_size; 195 196 /* number of packets in each buffer */ 197 int num_packets; 198 199 /* number of allocated urbs */ 200 int num_bufs; 201 202 /* urb for isoc/bulk transfers */ 203 struct urb **urb; 204 205 /* transfer buffers for isoc/bulk transfer */ 206 char **transfer_buffer; 207 }; 208 209 struct em28xx_usb_ctl { 210 /* isoc/bulk transfer buffers for analog mode */ 211 struct em28xx_usb_bufs analog_bufs; 212 213 /* isoc/bulk transfer buffers for digital mode */ 214 struct em28xx_usb_bufs digital_bufs; 215 216 /* Stores already requested buffers */ 217 struct em28xx_buffer *vid_buf; 218 struct em28xx_buffer *vbi_buf; 219 220 /* copy data from URB */ 221 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb); 222 223 }; 224 225 /* Struct to enumberate video formats */ 226 struct em28xx_fmt { 227 char *name; 228 u32 fourcc; /* v4l2 format id */ 229 int depth; 230 int reg; 231 }; 232 233 /* buffer for one video frame */ 234 struct em28xx_buffer { 235 /* common v4l buffer stuff -- must be first */ 236 struct vb2_buffer vb; 237 struct list_head list; 238 239 void *mem; 240 unsigned int length; 241 int top_field; 242 243 /* counter to control buffer fill */ 244 unsigned int pos; 245 /* NOTE; in interlaced mode, this value is reset to zero at 246 * the start of each new field (not frame !) */ 247 248 /* pointer to vmalloc memory address in vb */ 249 char *vb_buf; 250 }; 251 252 struct em28xx_dmaqueue { 253 struct list_head active; 254 255 wait_queue_head_t wq; 256 }; 257 258 /* inputs */ 259 260 #define MAX_EM28XX_INPUT 4 261 enum enum28xx_itype { 262 EM28XX_VMUX_COMPOSITE1 = 1, 263 EM28XX_VMUX_COMPOSITE2, 264 EM28XX_VMUX_COMPOSITE3, 265 EM28XX_VMUX_COMPOSITE4, 266 EM28XX_VMUX_SVIDEO, 267 EM28XX_VMUX_TELEVISION, 268 EM28XX_VMUX_CABLE, 269 EM28XX_VMUX_DVB, 270 EM28XX_VMUX_DEBUG, 271 EM28XX_RADIO, 272 }; 273 274 enum em28xx_ac97_mode { 275 EM28XX_NO_AC97 = 0, 276 EM28XX_AC97_EM202, 277 EM28XX_AC97_SIGMATEL, 278 EM28XX_AC97_OTHER, 279 }; 280 281 struct em28xx_audio_mode { 282 enum em28xx_ac97_mode ac97; 283 284 u16 ac97_feat; 285 u32 ac97_vendor_id; 286 287 unsigned int has_audio:1; 288 289 unsigned int i2s_3rates:1; 290 unsigned int i2s_5rates:1; 291 }; 292 293 /* em28xx has two audio inputs: tuner and line in. 294 However, on most devices, an auxiliary AC97 codec device is used. 295 The AC97 device may have several different inputs and outputs, 296 depending on their model. So, it is possible to use AC97 mixer to 297 address more than two different entries. 298 */ 299 enum em28xx_amux { 300 /* This is the only entry for em28xx tuner input */ 301 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 302 303 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 304 305 /* Some less-common mixer setups */ 306 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 307 EM28XX_AMUX_PHONE, 308 EM28XX_AMUX_MIC, 309 EM28XX_AMUX_CD, 310 EM28XX_AMUX_AUX, 311 EM28XX_AMUX_PCM_OUT, 312 }; 313 314 enum em28xx_aout { 315 /* AC97 outputs */ 316 EM28XX_AOUT_MASTER = 1 << 0, 317 EM28XX_AOUT_LINE = 1 << 1, 318 EM28XX_AOUT_MONO = 1 << 2, 319 EM28XX_AOUT_LFE = 1 << 3, 320 EM28XX_AOUT_SURR = 1 << 4, 321 322 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 323 EM28XX_AOUT_PCM_IN = 1 << 7, 324 325 /* Bits 10-8 are used to indicate the PCM IN record select */ 326 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 327 EM28XX_AOUT_PCM_CD = 1 << 8, 328 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 329 EM28XX_AOUT_PCM_AUX = 3 << 8, 330 EM28XX_AOUT_PCM_LINE = 4 << 8, 331 EM28XX_AOUT_PCM_STEREO = 5 << 8, 332 EM28XX_AOUT_PCM_MONO = 6 << 8, 333 EM28XX_AOUT_PCM_PHONE = 7 << 8, 334 }; 335 336 static inline int ac97_return_record_select(int a_out) 337 { 338 return (a_out & 0x700) >> 8; 339 } 340 341 struct em28xx_reg_seq { 342 int reg; 343 unsigned char val, mask; 344 int sleep; 345 }; 346 347 struct em28xx_input { 348 enum enum28xx_itype type; 349 unsigned int vmux; 350 enum em28xx_amux amux; 351 enum em28xx_aout aout; 352 struct em28xx_reg_seq *gpio; 353 }; 354 355 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 356 357 enum em28xx_decoder { 358 EM28XX_NODECODER = 0, 359 EM28XX_TVP5150, 360 EM28XX_SAA711X, 361 }; 362 363 enum em28xx_sensor { 364 EM28XX_NOSENSOR = 0, 365 EM28XX_MT9V011, 366 EM28XX_MT9M001, 367 EM28XX_MT9M111, 368 EM28XX_OV2640, 369 }; 370 371 enum em28xx_adecoder { 372 EM28XX_NOADECODER = 0, 373 EM28XX_TVAUDIO, 374 }; 375 376 struct em28xx_board { 377 char *name; 378 int vchannels; 379 int tuner_type; 380 int tuner_addr; 381 unsigned def_i2c_bus; /* Default I2C bus */ 382 383 /* i2c flags */ 384 unsigned int tda9887_conf; 385 386 /* GPIO sequences */ 387 struct em28xx_reg_seq *dvb_gpio; 388 struct em28xx_reg_seq *suspend_gpio; 389 struct em28xx_reg_seq *tuner_gpio; 390 struct em28xx_reg_seq *mute_gpio; 391 392 unsigned int is_em2800:1; 393 unsigned int has_msp34xx:1; 394 unsigned int mts_firmware:1; 395 unsigned int max_range_640_480:1; 396 unsigned int has_dvb:1; 397 unsigned int has_snapshot_button:1; 398 unsigned int is_webcam:1; 399 unsigned int valid:1; 400 unsigned int has_ir_i2c:1; 401 402 unsigned char xclk, i2c_speed; 403 unsigned char radio_addr; 404 unsigned short tvaudio_addr; 405 406 enum em28xx_decoder decoder; 407 enum em28xx_adecoder adecoder; 408 409 struct em28xx_input input[MAX_EM28XX_INPUT]; 410 struct em28xx_input radio; 411 char *ir_codes; 412 }; 413 414 struct em28xx_eeprom { 415 u8 id[4]; /* 1a eb 67 95 */ 416 __le16 vendor_ID; 417 __le16 product_ID; 418 419 __le16 chip_conf; 420 421 __le16 board_conf; 422 423 __le16 string1, string2, string3; 424 425 u8 string_idx_table; 426 }; 427 428 #define EM28XX_AUDIO_BUFS 5 429 #define EM28XX_NUM_AUDIO_PACKETS 64 430 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ 431 #define EM28XX_CAPTURE_STREAM_EN 1 432 433 /* em28xx extensions */ 434 #define EM28XX_AUDIO 0x10 435 #define EM28XX_DVB 0x20 436 #define EM28XX_RC 0x30 437 438 /* em28xx resource types (used for res_get/res_lock etc */ 439 #define EM28XX_RESOURCE_VIDEO 0x01 440 #define EM28XX_RESOURCE_VBI 0x02 441 442 struct em28xx_audio { 443 char name[50]; 444 char *transfer_buffer[EM28XX_AUDIO_BUFS]; 445 struct urb *urb[EM28XX_AUDIO_BUFS]; 446 struct usb_device *udev; 447 unsigned int capture_transfer_done; 448 struct snd_pcm_substream *capture_pcm_substream; 449 450 unsigned int hwptr_done_capture; 451 struct snd_card *sndcard; 452 453 int users; 454 spinlock_t slock; 455 }; 456 457 struct em28xx; 458 459 struct em28xx_fh { 460 struct v4l2_fh fh; 461 struct em28xx *dev; 462 463 enum v4l2_buf_type type; 464 }; 465 466 enum em28xx_i2c_algo_type { 467 EM28XX_I2C_ALGO_EM28XX = 0, 468 EM28XX_I2C_ALGO_EM2800, 469 EM28XX_I2C_ALGO_EM25XX_BUS_B, 470 }; 471 472 struct em28xx_i2c_bus { 473 struct em28xx *dev; 474 475 unsigned bus; 476 enum em28xx_i2c_algo_type algo_type; 477 }; 478 479 480 /* main device struct */ 481 struct em28xx { 482 /* generic device properties */ 483 char name[30]; /* name (including minor) of the device */ 484 int model; /* index in the device_data struct */ 485 int devno; /* marks the number of this device */ 486 enum em28xx_chip_id chip_id; 487 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 488 489 unsigned char disconnected:1; /* device has been diconnected */ 490 491 int audio_ifnum; 492 493 struct v4l2_device v4l2_dev; 494 struct v4l2_ctrl_handler ctrl_handler; 495 struct em28xx_board board; 496 497 /* Webcam specific fields */ 498 enum em28xx_sensor em28xx_sensor; 499 int sensor_xres, sensor_yres; 500 int sensor_xtal; 501 502 /* Progressive (non-interlaced) mode */ 503 int progressive; 504 505 /* Vinmode/Vinctl used at the driver */ 506 int vinmode, vinctl; 507 508 unsigned int has_audio_class:1; 509 unsigned int has_alsa_audio:1; 510 unsigned int is_audio_only:1; 511 512 /* Controls audio streaming */ 513 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */ 514 atomic_t stream_started; /* stream should be running if true */ 515 516 struct em28xx_fmt *format; 517 518 struct em28xx_IR *ir; 519 520 /* Some older em28xx chips needs a waiting time after writing */ 521 unsigned int wait_after_write; 522 523 struct list_head devlist; 524 525 u32 i2s_speed; /* I2S speed for audio digital stream */ 526 527 struct em28xx_audio_mode audio_mode; 528 529 int tuner_type; /* type of the tuner */ 530 int tuner_addr; /* tuner address */ 531 int tda9887_conf; 532 533 /* i2c i/o */ 534 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 535 struct i2c_client i2c_client[NUM_I2C_BUSES]; 536 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 537 538 unsigned char eeprom_addrwidth_16bit:1; 539 unsigned def_i2c_bus; /* Default I2C bus */ 540 unsigned cur_i2c_bus; /* Current I2C bus */ 541 struct rt_mutex i2c_bus_lock; 542 543 /* video for linux */ 544 int users; /* user count for exclusive use */ 545 int streaming_users; /* Number of actively streaming users */ 546 struct video_device *vdev; /* video for linux device struct */ 547 v4l2_std_id norm; /* selected tv norm */ 548 int ctl_freq; /* selected frequency */ 549 unsigned int ctl_input; /* selected input */ 550 unsigned int ctl_ainput;/* selected audio input */ 551 unsigned int ctl_aoutput;/* selected audio output */ 552 int mute; 553 int volume; 554 /* frame properties */ 555 int width; /* current frame width */ 556 int height; /* current frame height */ 557 unsigned hscale; /* horizontal scale factor (see datasheet) */ 558 unsigned vscale; /* vertical scale factor (see datasheet) */ 559 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 560 unsigned int video_bytesread; /* Number of bytes read */ 561 562 unsigned long hash; /* eeprom hash - for boards with generic ID */ 563 unsigned long i2c_hash; /* i2c devicelist hash - 564 for boards with generic ID */ 565 566 struct em28xx_audio adev; 567 568 /* capture state tracking */ 569 int capture_type; 570 unsigned char top_field:1; 571 int vbi_read; 572 unsigned int vbi_width; 573 unsigned int vbi_height; /* lines per field */ 574 575 struct work_struct request_module_wk; 576 577 /* locks */ 578 struct mutex lock; 579 struct mutex ctrl_urb_lock; /* protects urb_buf */ 580 /* spinlock_t queue_lock; */ 581 struct list_head inqueue, outqueue; 582 struct video_device *vbi_dev; 583 struct video_device *radio_dev; 584 585 /* Videobuf2 */ 586 struct vb2_queue vb_vidq; 587 struct vb2_queue vb_vbiq; 588 struct mutex vb_queue_lock; 589 struct mutex vb_vbi_queue_lock; 590 591 /* resources in use */ 592 unsigned int resources; 593 594 /* eeprom content */ 595 u8 *eedata; 596 u16 eedata_len; 597 598 /* Isoc control struct */ 599 struct em28xx_dmaqueue vidq; 600 struct em28xx_dmaqueue vbiq; 601 struct em28xx_usb_ctl usb_ctl; 602 spinlock_t slock; 603 604 unsigned int field_count; 605 unsigned int vbi_field_count; 606 607 /* usb transfer */ 608 struct usb_device *udev; /* the usb device */ 609 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 610 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 611 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 612 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 613 int alt; /* alternate setting */ 614 int max_pkt_size; /* max packet size of the selected ep at alt */ 615 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 616 URB buffer size definition */ 617 int num_alt; /* number of alternative settings */ 618 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 619 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 620 transfers for analog */ 621 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 622 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 623 selected DVB ep at dvb_alt */ 624 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 625 transfers for DVB */ 626 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 627 628 /* helper funcs that call usb_control_msg */ 629 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 630 char *buf, int len); 631 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 632 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 633 char *buf, int len); 634 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 635 char *buf, int len); 636 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 637 638 enum em28xx_mode mode; 639 640 /* Snapshot button */ 641 char snapshot_button_path[30]; /* path of the input dev */ 642 struct input_dev *sbutton_input_dev; 643 struct delayed_work sbutton_query_work; 644 645 struct em28xx_dvb *dvb; 646 }; 647 648 struct em28xx_ops { 649 struct list_head next; 650 char *name; 651 int id; 652 int (*init)(struct em28xx *); 653 int (*fini)(struct em28xx *); 654 }; 655 656 /* Provided by em28xx-i2c.c */ 657 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 658 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 659 enum em28xx_i2c_algo_type algo_type); 660 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 661 662 /* Provided by em28xx-core.c */ 663 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 664 char *buf, int len); 665 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 666 int em28xx_read_reg(struct em28xx *dev, u16 reg); 667 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 668 int len); 669 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 670 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 671 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 672 u8 bitmask); 673 674 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 675 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 676 677 int em28xx_audio_analog_set(struct em28xx *dev); 678 int em28xx_audio_setup(struct em28xx *dev); 679 680 int em28xx_colorlevels_set_default(struct em28xx *dev); 681 int em28xx_capture_start(struct em28xx *dev, int start); 682 int em28xx_vbi_supported(struct em28xx *dev); 683 int em28xx_set_outfmt(struct em28xx *dev); 684 int em28xx_resolution_set(struct em28xx *dev); 685 int em28xx_set_alternate(struct em28xx *dev); 686 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 687 int num_bufs, int max_pkt_size, int packet_multiplier); 688 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 689 int xfer_bulk, 690 int num_bufs, int max_pkt_size, int packet_multiplier, 691 int (*urb_data_copy) 692 (struct em28xx *dev, struct urb *urb)); 693 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 694 void em28xx_stop_urbs(struct em28xx *dev); 695 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 696 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 697 void em28xx_wake_i2c(struct em28xx *dev); 698 int em28xx_register_extension(struct em28xx_ops *dev); 699 void em28xx_unregister_extension(struct em28xx_ops *dev); 700 void em28xx_init_extension(struct em28xx *dev); 701 void em28xx_close_extension(struct em28xx *dev); 702 703 /* Provided by em28xx-video.c */ 704 int em28xx_vb2_setup(struct em28xx *dev); 705 int em28xx_register_analog_devices(struct em28xx *dev); 706 void em28xx_release_analog_resources(struct em28xx *dev); 707 void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv); 708 int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count); 709 int em28xx_stop_vbi_streaming(struct vb2_queue *vq); 710 extern const struct v4l2_ctrl_ops em28xx_ctrl_ops; 711 712 /* Provided by em28xx-cards.c */ 713 extern struct em28xx_board em28xx_boards[]; 714 extern struct usb_device_id em28xx_id_table[]; 715 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 716 void em28xx_release_resources(struct em28xx *dev); 717 718 /* Provided by em28xx-vbi.c */ 719 extern struct vb2_ops em28xx_vbi_qops; 720 721 /* Provided by em28xx-camera.c */ 722 int em28xx_detect_sensor(struct em28xx *dev); 723 int em28xx_init_camera(struct em28xx *dev); 724 725 /* printk macros */ 726 727 #define em28xx_err(fmt, arg...) do {\ 728 printk(KERN_ERR fmt , ##arg); } while (0) 729 730 #define em28xx_errdev(fmt, arg...) do {\ 731 printk(KERN_ERR "%s: "fmt,\ 732 dev->name , ##arg); } while (0) 733 734 #define em28xx_info(fmt, arg...) do {\ 735 printk(KERN_INFO "%s: "fmt,\ 736 dev->name , ##arg); } while (0) 737 #define em28xx_warn(fmt, arg...) do {\ 738 printk(KERN_WARNING "%s: "fmt,\ 739 dev->name , ##arg); } while (0) 740 741 static inline int em28xx_compression_disable(struct em28xx *dev) 742 { 743 /* side effect of disabling scaler and mixer */ 744 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 745 } 746 747 /*FIXME: maxw should be dependent of alt mode */ 748 static inline unsigned int norm_maxw(struct em28xx *dev) 749 { 750 if (dev->board.is_webcam) 751 return dev->sensor_xres; 752 753 if (dev->board.max_range_640_480) 754 return 640; 755 756 return 720; 757 } 758 759 static inline unsigned int norm_maxh(struct em28xx *dev) 760 { 761 if (dev->board.is_webcam) 762 return dev->sensor_yres; 763 764 if (dev->board.max_range_640_480) 765 return 480; 766 767 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 768 } 769 #endif 770