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 8 Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 */ 24 25 #ifndef _EM28XX_H 26 #define _EM28XX_H 27 28 #include <linux/workqueue.h> 29 #include <linux/i2c.h> 30 #include <linux/mutex.h> 31 #include <linux/videodev2.h> 32 33 #include <media/videobuf-vmalloc.h> 34 #include <media/v4l2-device.h> 35 #include <media/ir-kbd-i2c.h> 36 #include <media/rc-core.h> 37 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE) 38 #include <media/videobuf-dvb.h> 39 #endif 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 87 132 133 /* Limits minimum and default number of buffers */ 134 #define EM28XX_MIN_BUF 4 135 #define EM28XX_DEF_BUF 8 136 137 /*Limits the max URB message size */ 138 #define URB_MAX_CTRL_SIZE 80 139 140 /* Params for validated field */ 141 #define EM28XX_BOARD_NOT_VALIDATED 1 142 #define EM28XX_BOARD_VALIDATED 0 143 144 /* Params for em28xx_cmd() audio */ 145 #define EM28XX_START_AUDIO 1 146 #define EM28XX_STOP_AUDIO 0 147 148 /* maximum number of em28xx boards */ 149 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */ 150 151 /* maximum number of frames that can be queued */ 152 #define EM28XX_NUM_FRAMES 5 153 /* number of frames that get used for v4l2_read() */ 154 #define EM28XX_NUM_READ_FRAMES 2 155 156 /* number of buffers for isoc transfers */ 157 #define EM28XX_NUM_BUFS 5 158 #define EM28XX_DVB_NUM_BUFS 5 159 160 /* number of packets for each buffer 161 windows requests only 64 packets .. so we better do the same 162 this is what I found out for all alternate numbers there! 163 */ 164 #define EM28XX_NUM_PACKETS 64 165 #define EM28XX_DVB_MAX_PACKETS 64 166 167 #define EM28XX_INTERLACED_DEFAULT 1 168 169 /* 170 #define (use usbview if you want to get the other alternate number infos) 171 #define 172 #define alternate number 2 173 #define Endpoint Address: 82 174 Direction: in 175 Attribute: 1 176 Type: Isoc 177 Max Packet Size: 1448 178 Interval: 125us 179 180 alternate number 7 181 182 Endpoint Address: 82 183 Direction: in 184 Attribute: 1 185 Type: Isoc 186 Max Packet Size: 3072 187 Interval: 125us 188 */ 189 190 /* time to wait when stopping the isoc transfer */ 191 #define EM28XX_URB_TIMEOUT \ 192 msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS) 193 194 /* time in msecs to wait for i2c writes to finish */ 195 #define EM2800_I2C_WRITE_TIMEOUT 20 196 197 enum em28xx_mode { 198 EM28XX_SUSPEND, 199 EM28XX_ANALOG_MODE, 200 EM28XX_DIGITAL_MODE, 201 }; 202 203 204 struct em28xx; 205 206 struct em28xx_usb_isoc_bufs { 207 /* max packet size of isoc transaction */ 208 int max_pkt_size; 209 210 /* number of packets in each buffer */ 211 int num_packets; 212 213 /* number of allocated urbs */ 214 int num_bufs; 215 216 /* urb for isoc transfers */ 217 struct urb **urb; 218 219 /* transfer buffers for isoc transfer */ 220 char **transfer_buffer; 221 }; 222 223 struct em28xx_usb_isoc_ctl { 224 /* isoc transfer buffers for analog mode */ 225 struct em28xx_usb_isoc_bufs analog_bufs; 226 227 /* isoc transfer buffers for digital mode */ 228 struct em28xx_usb_isoc_bufs digital_bufs; 229 230 /* Stores already requested buffers */ 231 struct em28xx_buffer *vid_buf; 232 struct em28xx_buffer *vbi_buf; 233 234 /* isoc urb callback */ 235 int (*isoc_copy) (struct em28xx *dev, struct urb *urb); 236 237 }; 238 239 /* Struct to enumberate video formats */ 240 struct em28xx_fmt { 241 char *name; 242 u32 fourcc; /* v4l2 format id */ 243 int depth; 244 int reg; 245 }; 246 247 /* buffer for one video frame */ 248 struct em28xx_buffer { 249 /* common v4l buffer stuff -- must be first */ 250 struct videobuf_buffer vb; 251 252 struct list_head frame; 253 int top_field; 254 }; 255 256 struct em28xx_dmaqueue { 257 struct list_head active; 258 259 wait_queue_head_t wq; 260 261 /* Counters to control buffer fill */ 262 int pos; 263 }; 264 265 /* inputs */ 266 267 #define MAX_EM28XX_INPUT 4 268 enum enum28xx_itype { 269 EM28XX_VMUX_COMPOSITE1 = 1, 270 EM28XX_VMUX_COMPOSITE2, 271 EM28XX_VMUX_COMPOSITE3, 272 EM28XX_VMUX_COMPOSITE4, 273 EM28XX_VMUX_SVIDEO, 274 EM28XX_VMUX_TELEVISION, 275 EM28XX_VMUX_CABLE, 276 EM28XX_VMUX_DVB, 277 EM28XX_VMUX_DEBUG, 278 EM28XX_RADIO, 279 }; 280 281 enum em28xx_ac97_mode { 282 EM28XX_NO_AC97 = 0, 283 EM28XX_AC97_EM202, 284 EM28XX_AC97_SIGMATEL, 285 EM28XX_AC97_OTHER, 286 }; 287 288 struct em28xx_audio_mode { 289 enum em28xx_ac97_mode ac97; 290 291 u16 ac97_feat; 292 u32 ac97_vendor_id; 293 294 unsigned int has_audio:1; 295 296 unsigned int i2s_3rates:1; 297 unsigned int i2s_5rates:1; 298 }; 299 300 /* em28xx has two audio inputs: tuner and line in. 301 However, on most devices, an auxiliary AC97 codec device is used. 302 The AC97 device may have several different inputs and outputs, 303 depending on their model. So, it is possible to use AC97 mixer to 304 address more than two different entries. 305 */ 306 enum em28xx_amux { 307 /* This is the only entry for em28xx tuner input */ 308 EM28XX_AMUX_VIDEO, /* em28xx tuner, AC97 mixer Video */ 309 310 EM28XX_AMUX_LINE_IN, /* AC97 mixer Line In */ 311 312 /* Some less-common mixer setups */ 313 EM28XX_AMUX_VIDEO2, /* em28xx Line in, AC97 mixer Video */ 314 EM28XX_AMUX_PHONE, 315 EM28XX_AMUX_MIC, 316 EM28XX_AMUX_CD, 317 EM28XX_AMUX_AUX, 318 EM28XX_AMUX_PCM_OUT, 319 }; 320 321 enum em28xx_aout { 322 /* AC97 outputs */ 323 EM28XX_AOUT_MASTER = 1 << 0, 324 EM28XX_AOUT_LINE = 1 << 1, 325 EM28XX_AOUT_MONO = 1 << 2, 326 EM28XX_AOUT_LFE = 1 << 3, 327 EM28XX_AOUT_SURR = 1 << 4, 328 329 /* PCM IN Mixer - used by AC97_RECORD_SELECT register */ 330 EM28XX_AOUT_PCM_IN = 1 << 7, 331 332 /* Bits 10-8 are used to indicate the PCM IN record select */ 333 EM28XX_AOUT_PCM_MIC_PCM = 0 << 8, 334 EM28XX_AOUT_PCM_CD = 1 << 8, 335 EM28XX_AOUT_PCM_VIDEO = 2 << 8, 336 EM28XX_AOUT_PCM_AUX = 3 << 8, 337 EM28XX_AOUT_PCM_LINE = 4 << 8, 338 EM28XX_AOUT_PCM_STEREO = 5 << 8, 339 EM28XX_AOUT_PCM_MONO = 6 << 8, 340 EM28XX_AOUT_PCM_PHONE = 7 << 8, 341 }; 342 343 static inline int ac97_return_record_select(int a_out) 344 { 345 return (a_out & 0x700) >> 8; 346 } 347 348 struct em28xx_reg_seq { 349 int reg; 350 unsigned char val, mask; 351 int sleep; 352 }; 353 354 struct em28xx_input { 355 enum enum28xx_itype type; 356 unsigned int vmux; 357 enum em28xx_amux amux; 358 enum em28xx_aout aout; 359 struct em28xx_reg_seq *gpio; 360 }; 361 362 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) 363 364 enum em28xx_decoder { 365 EM28XX_NODECODER = 0, 366 EM28XX_TVP5150, 367 EM28XX_SAA711X, 368 }; 369 370 enum em28xx_sensor { 371 EM28XX_NOSENSOR = 0, 372 EM28XX_MT9V011, 373 EM28XX_MT9M001, 374 EM28XX_MT9M111, 375 }; 376 377 enum em28xx_adecoder { 378 EM28XX_NOADECODER = 0, 379 EM28XX_TVAUDIO, 380 }; 381 382 struct em28xx_board { 383 char *name; 384 int vchannels; 385 int tuner_type; 386 int tuner_addr; 387 388 /* i2c flags */ 389 unsigned int tda9887_conf; 390 391 /* GPIO sequences */ 392 struct em28xx_reg_seq *dvb_gpio; 393 struct em28xx_reg_seq *suspend_gpio; 394 struct em28xx_reg_seq *tuner_gpio; 395 struct em28xx_reg_seq *mute_gpio; 396 397 unsigned int is_em2800:1; 398 unsigned int has_msp34xx:1; 399 unsigned int mts_firmware:1; 400 unsigned int max_range_640_480:1; 401 unsigned int has_dvb:1; 402 unsigned int has_snapshot_button:1; 403 unsigned int is_webcam:1; 404 unsigned int valid:1; 405 unsigned int has_ir_i2c:1; 406 407 unsigned char xclk, i2c_speed; 408 unsigned char radio_addr; 409 unsigned short tvaudio_addr; 410 411 enum em28xx_decoder decoder; 412 enum em28xx_adecoder adecoder; 413 414 struct em28xx_input input[MAX_EM28XX_INPUT]; 415 struct em28xx_input radio; 416 char *ir_codes; 417 }; 418 419 struct em28xx_eeprom { 420 u32 id; /* 0x9567eb1a */ 421 u16 vendor_ID; 422 u16 product_ID; 423 424 u16 chip_conf; 425 426 u16 board_conf; 427 428 u16 string1, string2, string3; 429 430 u8 string_idx_table; 431 }; 432 433 /* device states */ 434 enum em28xx_dev_state { 435 DEV_INITIALIZED = 0x01, 436 DEV_DISCONNECTED = 0x02, 437 DEV_MISCONFIGURED = 0x04, 438 }; 439 440 #define EM28XX_AUDIO_BUFS 5 441 #define EM28XX_NUM_AUDIO_PACKETS 64 442 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ 443 #define EM28XX_CAPTURE_STREAM_EN 1 444 445 /* em28xx extensions */ 446 #define EM28XX_AUDIO 0x10 447 #define EM28XX_DVB 0x20 448 #define EM28XX_RC 0x30 449 450 /* em28xx resource types (used for res_get/res_lock etc */ 451 #define EM28XX_RESOURCE_VIDEO 0x01 452 #define EM28XX_RESOURCE_VBI 0x02 453 454 struct em28xx_audio { 455 char name[50]; 456 char *transfer_buffer[EM28XX_AUDIO_BUFS]; 457 struct urb *urb[EM28XX_AUDIO_BUFS]; 458 struct usb_device *udev; 459 unsigned int capture_transfer_done; 460 struct snd_pcm_substream *capture_pcm_substream; 461 462 unsigned int hwptr_done_capture; 463 struct snd_card *sndcard; 464 465 int users; 466 spinlock_t slock; 467 }; 468 469 struct em28xx; 470 471 struct em28xx_fh { 472 struct em28xx *dev; 473 int radio; 474 unsigned int resources; 475 476 struct videobuf_queue vb_vidq; 477 struct videobuf_queue vb_vbiq; 478 479 enum v4l2_buf_type type; 480 }; 481 482 /* main device struct */ 483 struct em28xx { 484 /* generic device properties */ 485 char name[30]; /* name (including minor) of the device */ 486 int model; /* index in the device_data struct */ 487 int devno; /* marks the number of this device */ 488 enum em28xx_chip_id chip_id; 489 490 int audio_ifnum; 491 492 struct v4l2_device v4l2_dev; 493 struct em28xx_board board; 494 495 /* Webcam specific fields */ 496 enum em28xx_sensor em28xx_sensor; 497 int sensor_xres, sensor_yres; 498 int sensor_xtal; 499 500 /* Allows progressive (e. g. non-interlaced) mode */ 501 int progressive; 502 503 /* Vinmode/Vinctl used at the driver */ 504 int vinmode, vinctl; 505 506 unsigned int has_audio_class:1; 507 unsigned int has_alsa_audio:1; 508 unsigned int is_audio_only:1; 509 510 /* Controls audio streaming */ 511 struct work_struct wq_trigger; /* Trigger to start/stop audio for alsa module */ 512 atomic_t stream_started; /* stream should be running if true */ 513 514 struct em28xx_fmt *format; 515 516 struct em28xx_IR *ir; 517 518 /* Some older em28xx chips needs a waiting time after writing */ 519 unsigned int wait_after_write; 520 521 struct list_head devlist; 522 523 u32 i2s_speed; /* I2S speed for audio digital stream */ 524 525 struct em28xx_audio_mode audio_mode; 526 527 int tuner_type; /* type of the tuner */ 528 int tuner_addr; /* tuner address */ 529 int tda9887_conf; 530 /* i2c i/o */ 531 struct i2c_adapter i2c_adap; 532 struct i2c_client i2c_client; 533 /* video for linux */ 534 int users; /* user count for exclusive use */ 535 struct video_device *vdev; /* video for linux device struct */ 536 v4l2_std_id norm; /* selected tv norm */ 537 int ctl_freq; /* selected frequency */ 538 unsigned int ctl_input; /* selected input */ 539 unsigned int ctl_ainput;/* selected audio input */ 540 unsigned int ctl_aoutput;/* selected audio output */ 541 int mute; 542 int volume; 543 /* frame properties */ 544 int width; /* current frame width */ 545 int height; /* current frame height */ 546 unsigned hscale; /* horizontal scale factor (see datasheet) */ 547 unsigned vscale; /* vertical scale factor (see datasheet) */ 548 int interlaced; /* 1=interlace fileds, 0=just top fileds */ 549 unsigned int video_bytesread; /* Number of bytes read */ 550 551 unsigned long hash; /* eeprom hash - for boards with generic ID */ 552 unsigned long i2c_hash; /* i2c devicelist hash - 553 for boards with generic ID */ 554 555 struct em28xx_audio adev; 556 557 /* states */ 558 enum em28xx_dev_state state; 559 560 /* vbi related state tracking */ 561 int capture_type; 562 int vbi_read; 563 unsigned char cur_field; 564 unsigned int vbi_width; 565 unsigned int vbi_height; /* lines per field */ 566 567 struct work_struct request_module_wk; 568 569 /* locks */ 570 struct mutex lock; 571 struct mutex ctrl_urb_lock; /* protects urb_buf */ 572 /* spinlock_t queue_lock; */ 573 struct list_head inqueue, outqueue; 574 struct video_device *vbi_dev; 575 struct video_device *radio_dev; 576 577 /* resources in use */ 578 unsigned int resources; 579 580 unsigned char eedata[256]; 581 582 /* Isoc control struct */ 583 struct em28xx_dmaqueue vidq; 584 struct em28xx_dmaqueue vbiq; 585 struct em28xx_usb_isoc_ctl isoc_ctl; 586 spinlock_t slock; 587 588 /* usb transfer */ 589 struct usb_device *udev; /* the usb device */ 590 int alt; /* alternate */ 591 int max_pkt_size; /* max packet size of isoc transaction */ 592 int num_alt; /* Number of alternative settings */ 593 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ 594 int dvb_alt; /* alternate for DVB */ 595 unsigned int dvb_max_pkt_size; /* wMaxPacketSize for DVB */ 596 char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ 597 598 /* helper funcs that call usb_control_msg */ 599 int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, 600 char *buf, int len); 601 int (*em28xx_read_reg) (struct em28xx *dev, u16 reg); 602 int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg, 603 char *buf, int len); 604 int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg, 605 char *buf, int len); 606 int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg); 607 608 enum em28xx_mode mode; 609 610 /* register numbers for GPO/GPIO registers */ 611 u16 reg_gpo_num, reg_gpio_num; 612 613 /* Caches GPO and GPIO registers */ 614 unsigned char reg_gpo, reg_gpio; 615 616 /* Snapshot button */ 617 char snapshot_button_path[30]; /* path of the input dev */ 618 struct input_dev *sbutton_input_dev; 619 struct delayed_work sbutton_query_work; 620 621 struct em28xx_dvb *dvb; 622 623 /* I2C keyboard data */ 624 struct IR_i2c_init_data init_data; 625 }; 626 627 struct em28xx_ops { 628 struct list_head next; 629 char *name; 630 int id; 631 int (*init)(struct em28xx *); 632 int (*fini)(struct em28xx *); 633 }; 634 635 /* Provided by em28xx-i2c.c */ 636 void em28xx_do_i2c_scan(struct em28xx *dev); 637 int em28xx_i2c_register(struct em28xx *dev); 638 int em28xx_i2c_unregister(struct em28xx *dev); 639 640 /* Provided by em28xx-core.c */ 641 642 u32 em28xx_request_buffers(struct em28xx *dev, u32 count); 643 void em28xx_queue_unusedframes(struct em28xx *dev); 644 void em28xx_release_buffers(struct em28xx *dev); 645 646 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, 647 char *buf, int len); 648 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); 649 int em28xx_read_reg(struct em28xx *dev, u16 reg); 650 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, 651 int len); 652 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); 653 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val); 654 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, 655 u8 bitmask); 656 657 int em28xx_read_ac97(struct em28xx *dev, u8 reg); 658 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val); 659 660 int em28xx_audio_analog_set(struct em28xx *dev); 661 int em28xx_audio_setup(struct em28xx *dev); 662 663 int em28xx_colorlevels_set_default(struct em28xx *dev); 664 int em28xx_capture_start(struct em28xx *dev, int start); 665 int em28xx_vbi_supported(struct em28xx *dev); 666 int em28xx_set_outfmt(struct em28xx *dev); 667 int em28xx_resolution_set(struct em28xx *dev); 668 int em28xx_set_alternate(struct em28xx *dev); 669 int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode, 670 int max_packets, int num_bufs, int max_pkt_size); 671 int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode, 672 int max_packets, int num_bufs, int max_pkt_size, 673 int (*isoc_copy) (struct em28xx *dev, struct urb *urb)); 674 void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode); 675 void em28xx_stop_urbs(struct em28xx *dev); 676 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev); 677 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); 678 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); 679 void em28xx_wake_i2c(struct em28xx *dev); 680 int em28xx_register_extension(struct em28xx_ops *dev); 681 void em28xx_unregister_extension(struct em28xx_ops *dev); 682 void em28xx_init_extension(struct em28xx *dev); 683 void em28xx_close_extension(struct em28xx *dev); 684 685 /* Provided by em28xx-video.c */ 686 int em28xx_register_analog_devices(struct em28xx *dev); 687 void em28xx_release_analog_resources(struct em28xx *dev); 688 689 /* Provided by em28xx-cards.c */ 690 extern int em2800_variant_detect(struct usb_device *udev, int model); 691 extern struct em28xx_board em28xx_boards[]; 692 extern struct usb_device_id em28xx_id_table[]; 693 extern const unsigned int em28xx_bcount; 694 int em28xx_tuner_callback(void *ptr, int component, int command, int arg); 695 void em28xx_release_resources(struct em28xx *dev); 696 697 /* Provided by em28xx-vbi.c */ 698 extern struct videobuf_queue_ops em28xx_vbi_qops; 699 700 /* printk macros */ 701 702 #define em28xx_err(fmt, arg...) do {\ 703 printk(KERN_ERR fmt , ##arg); } while (0) 704 705 #define em28xx_errdev(fmt, arg...) do {\ 706 printk(KERN_ERR "%s: "fmt,\ 707 dev->name , ##arg); } while (0) 708 709 #define em28xx_info(fmt, arg...) do {\ 710 printk(KERN_INFO "%s: "fmt,\ 711 dev->name , ##arg); } while (0) 712 #define em28xx_warn(fmt, arg...) do {\ 713 printk(KERN_WARNING "%s: "fmt,\ 714 dev->name , ##arg); } while (0) 715 716 static inline int em28xx_compression_disable(struct em28xx *dev) 717 { 718 /* side effect of disabling scaler and mixer */ 719 return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00); 720 } 721 722 static inline int em28xx_contrast_get(struct em28xx *dev) 723 { 724 return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f; 725 } 726 727 static inline int em28xx_brightness_get(struct em28xx *dev) 728 { 729 return em28xx_read_reg(dev, EM28XX_R21_YOFFSET); 730 } 731 732 static inline int em28xx_saturation_get(struct em28xx *dev) 733 { 734 return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f; 735 } 736 737 static inline int em28xx_u_balance_get(struct em28xx *dev) 738 { 739 return em28xx_read_reg(dev, EM28XX_R23_UOFFSET); 740 } 741 742 static inline int em28xx_v_balance_get(struct em28xx *dev) 743 { 744 return em28xx_read_reg(dev, EM28XX_R24_VOFFSET); 745 } 746 747 static inline int em28xx_gamma_get(struct em28xx *dev) 748 { 749 return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f; 750 } 751 752 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val) 753 { 754 u8 tmp = (u8) val; 755 return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1); 756 } 757 758 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val) 759 { 760 u8 tmp = (u8) val; 761 return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1); 762 } 763 764 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val) 765 { 766 u8 tmp = (u8) val; 767 return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1); 768 } 769 770 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val) 771 { 772 u8 tmp = (u8) val; 773 return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1); 774 } 775 776 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val) 777 { 778 u8 tmp = (u8) val; 779 return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1); 780 } 781 782 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val) 783 { 784 u8 tmp = (u8) val; 785 return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1); 786 } 787 788 /*FIXME: maxw should be dependent of alt mode */ 789 static inline unsigned int norm_maxw(struct em28xx *dev) 790 { 791 if (dev->board.is_webcam) 792 return dev->sensor_xres; 793 794 if (dev->board.max_range_640_480) 795 return 640; 796 797 return 720; 798 } 799 800 static inline unsigned int norm_maxh(struct em28xx *dev) 801 { 802 if (dev->board.is_webcam) 803 return dev->sensor_yres; 804 805 if (dev->board.max_range_640_480) 806 return 480; 807 808 return (dev->norm & V4L2_STD_625_50) ? 576 : 480; 809 } 810 #endif 811