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 #define EM2874_BOARD_KWORLD_UB435Q_V2 90 135 136 /* Limits minimum and default number of buffers */ 137 #define EM28XX_MIN_BUF 4 138 #define EM28XX_DEF_BUF 8 139 140 /*Limits the max URB message size */ 141 #define URB_MAX_CTRL_SIZE 80 142 143 /* Params for validated field */ 144 #define EM28XX_BOARD_NOT_VALIDATED 1 145 #define EM28XX_BOARD_VALIDATED 0 146 147 /* Params for em28xx_cmd() audio */ 148 #define EM28XX_START_AUDIO 1 149 #define EM28XX_STOP_AUDIO 0 150 151 /* maximum number of em28xx boards */ 152 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 153 154 /* maximum number of frames that can be queued */ 155 #define EM28XX_NUM_FRAMES 5 156 /* number of frames that get used for v4l2_read() */ 157 #define EM28XX_NUM_READ_FRAMES 2 158 159 /* number of buffers for isoc transfers */ 160 #define EM28XX_NUM_BUFS 5 161 #define EM28XX_DVB_NUM_BUFS 5 162 163 /* max number of I2C buses on em28xx devices */ 164 #define NUM_I2C_BUSES 2 165 166 /* isoc transfers: number of packets for each buffer 167 windows requests only 64 packets .. so we better do the same 168 this is what I found out for all alternate numbers there! 169 */ 170 #define EM28XX_NUM_ISOC_PACKETS 64 171 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 172 173 /* bulk transfers: transfer buffer size = packet size * packet multiplier 174 USB 2.0 spec says bulk packet size is always 512 bytes 175 */ 176 #define EM28XX_BULK_PACKET_MULTIPLIER 384 177 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 178 179 #define EM28XX_INTERLACED_DEFAULT 1 180 181 /* time in msecs to wait for i2c writes to finish */ 182 #define EM2800_I2C_XFER_TIMEOUT 20 183 184 enum em28xx_mode { 185 EM28XX_SUSPEND, 186 EM28XX_ANALOG_MODE, 187 EM28XX_DIGITAL_MODE, 188 }; 189 190 191 struct em28xx; 192 193 struct em28xx_usb_bufs { 194 /* max packet size of isoc transaction */ 195 int max_pkt_size; 196 197 /* number of packets in each buffer */ 198 int num_packets; 199 200 /* number of allocated urbs */ 201 int num_bufs; 202 203 /* urb for isoc/bulk transfers */ 204 struct urb **urb; 205 206 /* transfer buffers for isoc/bulk transfer */ 207 char **transfer_buffer; 208 }; 209 210 struct em28xx_usb_ctl { 211 /* isoc/bulk transfer buffers for analog mode */ 212 struct em28xx_usb_bufs analog_bufs; 213 214 /* isoc/bulk transfer buffers for digital mode */ 215 struct em28xx_usb_bufs digital_bufs; 216 217 /* Stores already requested buffers */ 218 struct em28xx_buffer *vid_buf; 219 struct em28xx_buffer *vbi_buf; 220 221 /* copy data from URB */ 222 int (*urb_data_copy) (struct em28xx *dev, struct urb *urb); 223 224 }; 225 226 /* Struct to enumberate video formats */ 227 struct em28xx_fmt { 228 char *name; 229 u32 fourcc; /* v4l2 format id */ 230 int depth; 231 int reg; 232 }; 233 234 /* buffer for one video frame */ 235 struct em28xx_buffer { 236 /* common v4l buffer stuff -- must be first */ 237 struct vb2_buffer vb; 238 struct list_head list; 239 240 void *mem; 241 unsigned int length; 242 int top_field; 243 244 /* counter to control buffer fill */ 245 unsigned int pos; 246 /* NOTE; in interlaced mode, this value is reset to zero at 247 * the start of each new field (not frame !) */ 248 249 /* pointer to vmalloc memory address in vb */ 250 char *vb_buf; 251 }; 252 253 struct em28xx_dmaqueue { 254 struct list_head active; 255 256 wait_queue_head_t wq; 257 }; 258 259 /* inputs */ 260 261 #define MAX_EM28XX_INPUT 4 262 enum enum28xx_itype { 263 EM28XX_VMUX_COMPOSITE1 = 1, 264 EM28XX_VMUX_COMPOSITE2, 265 EM28XX_VMUX_COMPOSITE3, 266 EM28XX_VMUX_COMPOSITE4, 267 EM28XX_VMUX_SVIDEO, 268 EM28XX_VMUX_TELEVISION, 269 EM28XX_VMUX_CABLE, 270 EM28XX_VMUX_DVB, 271 EM28XX_VMUX_DEBUG, 272 EM28XX_RADIO, 273 }; 274 275 enum em28xx_ac97_mode { 276 EM28XX_NO_AC97 = 0, 277 EM28XX_AC97_EM202, 278 EM28XX_AC97_SIGMATEL, 279 EM28XX_AC97_OTHER, 280 }; 281 282 struct em28xx_audio_mode { 283 enum em28xx_ac97_mode ac97; 284 285 u16 ac97_feat; 286 u32 ac97_vendor_id; 287 288 unsigned int has_audio:1; 289 290 unsigned int i2s_3rates:1; 291 unsigned int i2s_5rates:1; 292 }; 293 294 /* em28xx has two audio inputs: tuner and line in. 295 However, on most devices, an auxiliary AC97 codec device is used. 296 The AC97 device may have several different inputs and outputs, 297 depending on their model. So, it is possible to use AC97 mixer to 298 address more than two different entries. 299 */ 300 enum em28xx_amux { 301 /* This is the only entry for em28xx tuner input */ 302 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 303 304 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 305 306 /* Some less-common mixer setups */ 307 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 308 EM28XX_AMUX_PHONE, 309 EM28XX_AMUX_MIC, 310 EM28XX_AMUX_CD, 311 EM28XX_AMUX_AUX, 312 EM28XX_AMUX_PCM_OUT, 313 }; 314 315 enum em28xx_aout { 316 /* AC97 outputs */ 317 EM28XX_AOUT_MASTER = 1 << 0, 318 EM28XX_AOUT_LINE = 1 << 1, 319 EM28XX_AOUT_MONO = 1 << 2, 320 EM28XX_AOUT_LFE = 1 << 3, 321 EM28XX_AOUT_SURR = 1 << 4, 322 323 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 324 EM28XX_AOUT_PCM_IN = 1 << 7, 325 326 /* Bits 10-8 are used to indicate the PCM IN record select */ 327 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 328 EM28XX_AOUT_PCM_CD = 1 << 8, 329 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 330 EM28XX_AOUT_PCM_AUX = 3 << 8, 331 EM28XX_AOUT_PCM_LINE = 4 << 8, 332 EM28XX_AOUT_PCM_STEREO = 5 << 8, 333 EM28XX_AOUT_PCM_MONO = 6 << 8, 334 EM28XX_AOUT_PCM_PHONE = 7 << 8, 335 }; 336 337 static inline int ac97_return_record_select(int a_out) 338 { 339 return (a_out & 0x700) >> 8; 340 } 341 342 struct em28xx_reg_seq { 343 int reg; 344 unsigned char val, mask; 345 int sleep; 346 }; 347 348 struct em28xx_input { 349 enum enum28xx_itype type; 350 unsigned int vmux; 351 enum em28xx_amux amux; 352 enum em28xx_aout aout; 353 struct em28xx_reg_seq *gpio; 354 }; 355 356 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 357 358 enum em28xx_decoder { 359 EM28XX_NODECODER = 0, 360 EM28XX_TVP5150, 361 EM28XX_SAA711X, 362 }; 363 364 enum em28xx_sensor { 365 EM28XX_NOSENSOR = 0, 366 EM28XX_MT9V011, 367 EM28XX_MT9M001, 368 EM28XX_MT9M111, 369 EM28XX_OV2640, 370 }; 371 372 enum em28xx_adecoder { 373 EM28XX_NOADECODER = 0, 374 EM28XX_TVAUDIO, 375 }; 376 377 struct em28xx_board { 378 char *name; 379 int vchannels; 380 int tuner_type; 381 int tuner_addr; 382 unsigned def_i2c_bus; /* Default I2C bus */ 383 384 /* i2c flags */ 385 unsigned int tda9887_conf; 386 387 /* GPIO sequences */ 388 struct em28xx_reg_seq *dvb_gpio; 389 struct em28xx_reg_seq *suspend_gpio; 390 struct em28xx_reg_seq *tuner_gpio; 391 struct em28xx_reg_seq *mute_gpio; 392 393 unsigned int is_em2800:1; 394 unsigned int has_msp34xx:1; 395 unsigned int mts_firmware:1; 396 unsigned int max_range_640_480:1; 397 unsigned int has_dvb:1; 398 unsigned int has_snapshot_button:1; 399 unsigned int is_webcam:1; 400 unsigned int valid:1; 401 unsigned int has_ir_i2c:1; 402 403 unsigned char xclk, i2c_speed; 404 unsigned char radio_addr; 405 unsigned short tvaudio_addr; 406 407 enum em28xx_decoder decoder; 408 enum em28xx_adecoder adecoder; 409 410 struct em28xx_input input[MAX_EM28XX_INPUT]; 411 struct em28xx_input radio; 412 char *ir_codes; 413 }; 414 415 struct em28xx_eeprom { 416 u8 id[4]; /* 1a eb 67 95 */ 417 __le16 vendor_ID; 418 __le16 product_ID; 419 420 __le16 chip_conf; 421 422 __le16 board_conf; 423 424 __le16 string1, string2, string3; 425 426 u8 string_idx_table; 427 }; 428 429 #define EM28XX_AUDIO_BUFS 5 430 #define EM28XX_NUM_AUDIO_PACKETS 64 431 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ 432 #define EM28XX_CAPTURE_STREAM_EN 1 433 434 /* em28xx extensions */ 435 #define EM28XX_AUDIO 0x10 436 #define EM28XX_DVB 0x20 437 #define EM28XX_RC 0x30 438 439 /* em28xx resource types (used for res_get/res_lock etc */ 440 #define EM28XX_RESOURCE_VIDEO 0x01 441 #define EM28XX_RESOURCE_VBI 0x02 442 443 struct em28xx_audio { 444 char name[50]; 445 char *transfer_buffer[EM28XX_AUDIO_BUFS]; 446 struct urb *urb[EM28XX_AUDIO_BUFS]; 447 struct usb_device *udev; 448 unsigned int capture_transfer_done; 449 struct snd_pcm_substream *capture_pcm_substream; 450 451 unsigned int hwptr_done_capture; 452 struct snd_card *sndcard; 453 454 int users; 455 spinlock_t slock; 456 }; 457 458 struct em28xx; 459 460 struct em28xx_fh { 461 struct v4l2_fh fh; 462 struct em28xx *dev; 463 464 enum v4l2_buf_type type; 465 }; 466 467 enum em28xx_i2c_algo_type { 468 EM28XX_I2C_ALGO_EM28XX = 0, 469 EM28XX_I2C_ALGO_EM2800, 470 EM28XX_I2C_ALGO_EM25XX_BUS_B, 471 }; 472 473 struct em28xx_i2c_bus { 474 struct em28xx *dev; 475 476 unsigned bus; 477 enum em28xx_i2c_algo_type algo_type; 478 }; 479 480 481 /* main device struct */ 482 struct em28xx { 483 /* generic device properties */ 484 char name[30]; /* name (including minor) of the device */ 485 int model; /* index in the device_data struct */ 486 int devno; /* marks the number of this device */ 487 enum em28xx_chip_id chip_id; 488 unsigned int is_em25xx:1; /* em25xx/em276x/7x/8x family bridge */ 489 490 unsigned char disconnected:1; /* device has been diconnected */ 491 492 int audio_ifnum; 493 494 struct v4l2_device v4l2_dev; 495 struct v4l2_ctrl_handler ctrl_handler; 496 struct v4l2_clk *clk; 497 struct em28xx_board board; 498 499 /* Webcam specific fields */ 500 enum em28xx_sensor em28xx_sensor; 501 int sensor_xres, sensor_yres; 502 int sensor_xtal; 503 504 /* Progressive (non-interlaced) mode */ 505 int progressive; 506 507 /* Vinmode/Vinctl used at the driver */ 508 int vinmode, vinctl; 509 510 unsigned int has_audio_class:1; 511 unsigned int has_alsa_audio:1; 512 unsigned int is_audio_only:1; 513 514 /* Controls audio streaming */ 515 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */ 516 atomic_t stream_started; /* stream should be running if true */ 517 518 struct em28xx_fmt *format; 519 520 struct em28xx_IR *ir; 521 522 /* Some older em28xx chips needs a waiting time after writing */ 523 unsigned int wait_after_write; 524 525 struct list_head devlist; 526 527 u32 i2s_speed; /* I2S speed for audio digital stream */ 528 529 struct em28xx_audio_mode audio_mode; 530 531 int tuner_type; /* type of the tuner */ 532 int tuner_addr; /* tuner address */ 533 int tda9887_conf; 534 535 /* i2c i/o */ 536 struct i2c_adapter i2c_adap[NUM_I2C_BUSES]; 537 struct i2c_client i2c_client[NUM_I2C_BUSES]; 538 struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES]; 539 540 unsigned char eeprom_addrwidth_16bit:1; 541 unsigned def_i2c_bus; /* Default I2C bus */ 542 unsigned cur_i2c_bus; /* Current I2C bus */ 543 struct rt_mutex i2c_bus_lock; 544 545 /* video for linux */ 546 int users; /* user count for exclusive use */ 547 int streaming_users; /* Number of actively streaming users */ 548 struct video_device *vdev; /* video for linux device struct */ 549 v4l2_std_id norm; /* selected tv norm */ 550 int ctl_freq; /* selected frequency */ 551 unsigned int ctl_input; /* selected input */ 552 unsigned int ctl_ainput;/* selected audio input */ 553 unsigned int ctl_aoutput;/* selected audio output */ 554 int mute; 555 int volume; 556 /* frame properties */ 557 int width; /* current frame width */ 558 int height; /* current frame height */ 559 unsigned hscale; /* horizontal scale factor (see datasheet) */ 560 unsigned vscale; /* vertical scale factor (see datasheet) */ 561 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 562 unsigned int video_bytesread; /* Number of bytes read */ 563 564 unsigned long hash; /* eeprom hash - for boards with generic ID */ 565 unsigned long i2c_hash; /* i2c devicelist hash - 566 for boards with generic ID */ 567 568 struct em28xx_audio adev; 569 570 /* capture state tracking */ 571 int capture_type; 572 unsigned char top_field:1; 573 int vbi_read; 574 unsigned int vbi_width; 575 unsigned int vbi_height; /* lines per field */ 576 577 struct work_struct request_module_wk; 578 579 /* locks */ 580 struct mutex lock; 581 struct mutex ctrl_urb_lock; /* protects urb_buf */ 582 /* spinlock_t queue_lock; */ 583 struct list_head inqueue, outqueue; 584 struct video_device *vbi_dev; 585 struct video_device *radio_dev; 586 587 /* Videobuf2 */ 588 struct vb2_queue vb_vidq; 589 struct vb2_queue vb_vbiq; 590 struct mutex vb_queue_lock; 591 struct mutex vb_vbi_queue_lock; 592 593 /* resources in use */ 594 unsigned int resources; 595 596 /* eeprom content */ 597 u8 *eedata; 598 u16 eedata_len; 599 600 /* Isoc control struct */ 601 struct em28xx_dmaqueue vidq; 602 struct em28xx_dmaqueue vbiq; 603 struct em28xx_usb_ctl usb_ctl; 604 spinlock_t slock; 605 606 unsigned int field_count; 607 unsigned int vbi_field_count; 608 609 /* usb transfer */ 610 struct usb_device *udev; /* the usb device */ 611 u8 analog_ep_isoc; /* address of isoc endpoint for analog */ 612 u8 analog_ep_bulk; /* address of bulk endpoint for analog */ 613 u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ 614 u8 dvb_ep_bulk; /* address of bulk endpoint for DVB */ 615 int alt; /* alternate setting */ 616 int max_pkt_size; /* max packet size of the selected ep at alt */ 617 int packet_multiplier; /* multiplier for wMaxPacketSize, used for 618 URB buffer size definition */ 619 int num_alt; /* number of alternative settings */ 620 unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ 621 unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc 622 transfers for analog */ 623 int dvb_alt_isoc; /* alternate setting for DVB isoc transfers */ 624 unsigned int dvb_max_pkt_size_isoc; /* isoc max packet size of the 625 selected DVB ep at dvb_alt */ 626 unsigned int dvb_xfer_bulk:1; /* use bulk instead of isoc 627 transfers for DVB */ 628 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 629 630 /* helper funcs that call usb_control_msg */ 631 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 632 char *buf, int len); 633 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 634 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 635 char *buf, int len); 636 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 637 char *buf, int len); 638 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 639 640 enum em28xx_mode mode; 641 642 /* Snapshot button */ 643 char snapshot_button_path[30]; /* path of the input dev */ 644 struct input_dev *sbutton_input_dev; 645 struct delayed_work sbutton_query_work; 646 647 struct em28xx_dvb *dvb; 648 }; 649 650 struct em28xx_ops { 651 struct list_head next; 652 char *name; 653 int id; 654 int (*init)(struct em28xx *); 655 int (*fini)(struct em28xx *); 656 }; 657 658 /* Provided by em28xx-i2c.c */ 659 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned bus); 660 int em28xx_i2c_register(struct em28xx *dev, unsigned bus, 661 enum em28xx_i2c_algo_type algo_type); 662 int em28xx_i2c_unregister(struct em28xx *dev, unsigned bus); 663 664 /* Provided by em28xx-core.c */ 665 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 666 char *buf, int len); 667 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 668 int em28xx_read_reg(struct em28xx *dev, u16 reg); 669 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 670 int len); 671 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 672 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 673 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 674 u8 bitmask); 675 676 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 677 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 678 679 int em28xx_audio_analog_set(struct em28xx *dev); 680 int em28xx_audio_setup(struct em28xx *dev); 681 682 int em28xx_colorlevels_set_default(struct em28xx *dev); 683 int em28xx_capture_start(struct em28xx *dev, int start); 684 int em28xx_vbi_supported(struct em28xx *dev); 685 int em28xx_set_outfmt(struct em28xx *dev); 686 int em28xx_resolution_set(struct em28xx *dev); 687 int em28xx_set_alternate(struct em28xx *dev); 688 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk, 689 int num_bufs, int max_pkt_size, int packet_multiplier); 690 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode, 691 int xfer_bulk, 692 int num_bufs, int max_pkt_size, int packet_multiplier, 693 int (*urb_data_copy) 694 (struct em28xx *dev, struct urb *urb)); 695 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode); 696 void em28xx_stop_urbs(struct em28xx *dev); 697 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 698 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 699 void em28xx_wake_i2c(struct em28xx *dev); 700 int em28xx_register_extension(struct em28xx_ops *dev); 701 void em28xx_unregister_extension(struct em28xx_ops *dev); 702 void em28xx_init_extension(struct em28xx *dev); 703 void em28xx_close_extension(struct em28xx *dev); 704 705 /* Provided by em28xx-video.c */ 706 int em28xx_vb2_setup(struct em28xx *dev); 707 int em28xx_register_analog_devices(struct em28xx *dev); 708 void em28xx_release_analog_resources(struct em28xx *dev); 709 void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv); 710 int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count); 711 int em28xx_stop_vbi_streaming(struct vb2_queue *vq); 712 extern const struct v4l2_ctrl_ops em28xx_ctrl_ops; 713 714 /* Provided by em28xx-cards.c */ 715 extern struct em28xx_board em28xx_boards[]; 716 extern struct usb_device_id em28xx_id_table[]; 717 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 718 void em28xx_release_resources(struct em28xx *dev); 719 720 /* Provided by em28xx-vbi.c */ 721 extern struct vb2_ops em28xx_vbi_qops; 722 723 /* Provided by em28xx-camera.c */ 724 int em28xx_detect_sensor(struct em28xx *dev); 725 int em28xx_init_camera(struct em28xx *dev); 726 727 /* printk macros */ 728 729 #define em28xx_err(fmt, arg...) do {\ 730 printk(KERN_ERR fmt , ##arg); } while (0) 731 732 #define em28xx_errdev(fmt, arg...) do {\ 733 printk(KERN_ERR "%s: "fmt,\ 734 dev->name , ##arg); } while (0) 735 736 #define em28xx_info(fmt, arg...) do {\ 737 printk(KERN_INFO "%s: "fmt,\ 738 dev->name , ##arg); } while (0) 739 #define em28xx_warn(fmt, arg...) do {\ 740 printk(KERN_WARNING "%s: "fmt,\ 741 dev->name , ##arg); } while (0) 742 743 static inline int em28xx_compression_disable(struct em28xx *dev) 744 { 745 /* side effect of disabling scaler and mixer */ 746 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 747 } 748 749 /*FIXME: maxw should be dependent of alt mode */ 750 static inline unsigned int norm_maxw(struct em28xx *dev) 751 { 752 if (dev->board.is_webcam) 753 return dev->sensor_xres; 754 755 if (dev->board.max_range_640_480) 756 return 640; 757 758 return 720; 759 } 760 761 static inline unsigned int norm_maxh(struct em28xx *dev) 762 { 763 if (dev->board.is_webcam) 764 return dev->sensor_yres; 765 766 if (dev->board.max_range_640_480) 767 return 480; 768 769 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 770 } 771 #endif 772