drivers/media/video/em28xx/em28xx.h

   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/videodev2.h>
  29 #include <media/videobuf-vmalloc.h>
  30 #include <media/v4l2-device.h>
  31
  32 #include <linux/i2c.h>
  33 #include <linux/mutex.h>
  34 #include <media/ir-kbd-i2c.h>
  35 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
  36 #include <media/videobuf-dvb.h>
  37 #endif
  38 #include "tuner-xc2028.h"
  39 #include "em28xx-reg.h"
  40
  41 /* Boards supported by driver */
  42 #define EM2800_BOARD_UNKNOWN                    0
  43 #define EM2820_BOARD_UNKNOWN                    1
  44 #define EM2820_BOARD_TERRATEC_CINERGY_250       2
  45 #define EM2820_BOARD_PINNACLE_USB_2             3
  46 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2      4
  47 #define EM2820_BOARD_MSI_VOX_USB_2              5
  48 #define EM2800_BOARD_TERRATEC_CINERGY_200       6
  49 #define EM2800_BOARD_LEADTEK_WINFAST_USBII      7
  50 #define EM2800_BOARD_KWORLD_USB2800             8
  51 #define EM2820_BOARD_PINNACLE_DVC_90            9
  52 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900    10
  53 #define EM2880_BOARD_TERRATEC_HYBRID_XS         11
  54 #define EM2820_BOARD_KWORLD_PVRTV2800RF         12
  55 #define EM2880_BOARD_TERRATEC_PRODIGY_XS        13
  56 #define EM2820_BOARD_PROLINK_PLAYTV_USB2        14
  57 #define EM2800_BOARD_VGEAR_POCKETTV             15
  58 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950    16
  59 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO       17
  60 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
  61 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN   19
  62 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600   20
  63 #define EM2800_BOARD_GRABBEEX_USB2800           21
  64 #define EM2750_BOARD_UNKNOWN                      22
  65 #define EM2750_BOARD_DLCW_130                     23
  66 #define EM2820_BOARD_DLINK_USB_TV                 24
  67 #define EM2820_BOARD_GADMEI_UTV310                25
  68 #define EM2820_BOARD_HERCULES_SMART_TV_USB2       26
  69 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME      27
  70 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
  71 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB          30
  72 #define EM2821_BOARD_USBGEAR_VD204                31
  73 #define EM2821_BOARD_SUPERCOMP_USB_2              32
  74 #define EM2860_BOARD_TERRATEC_HYBRID_XS           34
  75 #define EM2860_BOARD_TYPHOON_DVD_MAKER            35
  76 #define EM2860_BOARD_NETGMBH_CAM                  36
  77 #define EM2860_BOARD_GADMEI_UTV330                37
  78 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER           38
  79 #define EM2861_BOARD_KWORLD_PVRTV_300U            39
  80 #define EM2861_BOARD_PLEXTOR_PX_TV100U            40
  81 #define EM2870_BOARD_KWORLD_350U                  41
  82 #define EM2870_BOARD_KWORLD_355U                  42
  83 #define EM2870_BOARD_TERRATEC_XS                  43
  84 #define EM2870_BOARD_TERRATEC_XS_MT2060           44
  85 #define EM2870_BOARD_PINNACLE_PCTV_DVB            45
  86 #define EM2870_BOARD_COMPRO_VIDEOMATE             46
  87 #define EM2880_BOARD_KWORLD_DVB_305U              47
  88 #define EM2880_BOARD_KWORLD_DVB_310U              48
  89 #define EM2880_BOARD_MSI_DIGIVOX_AD               49
  90 #define EM2880_BOARD_MSI_DIGIVOX_AD_II            50
  91 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR        51
  92 #define EM2881_BOARD_DNT_DA2_HYBRID               52
  93 #define EM2881_BOARD_PINNACLE_HYBRID_PRO          53
  94 #define EM2882_BOARD_KWORLD_VS_DVBT               54
  95 #define EM2882_BOARD_TERRATEC_HYBRID_XS           55
  96 #define EM2882_BOARD_PINNACLE_HYBRID_PRO          56
  97 #define EM2883_BOARD_KWORLD_HYBRID_330U                  57
  98 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU      58
  99 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850      60
 100 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2     61
 101 #define EM2820_BOARD_GADMEI_TVR200                62
 102 #define EM2860_BOARD_KAIOMY_TVNPC_U2              63
 103 #define EM2860_BOARD_EASYCAP                      64
 104 #define EM2820_BOARD_IODATA_GVMVP_SZ              65
 105 #define EM2880_BOARD_EMPIRE_DUAL_TV               66
 106 #define EM2860_BOARD_TERRATEC_GRABBY              67
 107 #define EM2860_BOARD_TERRATEC_AV350               68
 108 #define EM2882_BOARD_KWORLD_ATSC_315U             69
 109 #define EM2882_BOARD_EVGA_INDTUBE                 70
 110 #define EM2820_BOARD_SILVERCREST_WEBCAM           71
 111 #define EM2861_BOARD_GADMEI_UTV330PLUS           72
 112
 113 /* Limits minimum and default number of buffers */
 114 #define EM28XX_MIN_BUF 4
 115 #define EM28XX_DEF_BUF 8
 116
 117 /*Limits the max URB message size */
 118 #define URB_MAX_CTRL_SIZE 80
 119
 120 /* Params for validated field */
 121 #define EM28XX_BOARD_NOT_VALIDATED 1
 122 #define EM28XX_BOARD_VALIDATED     0
 123
 124 /* Params for em28xx_cmd() audio */
 125 #define EM28XX_START_AUDIO      1
 126 #define EM28XX_STOP_AUDIO       0
 127
 128 /* maximum number of em28xx boards */
 129 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
 130
 131 /* maximum number of frames that can be queued */
 132 #define EM28XX_NUM_FRAMES 5
 133 /* number of frames that get used for v4l2_read() */
 134 #define EM28XX_NUM_READ_FRAMES 2
 135
 136 /* number of buffers for isoc transfers */
 137 #define EM28XX_NUM_BUFS 5
 138
 139 /* number of packets for each buffer
 140    windows requests only 40 packets .. so we better do the same
 141    this is what I found out for all alternate numbers there!
 142  */
 143 #define EM28XX_NUM_PACKETS 40
 144
 145 /* default alternate; 0 means choose the best */
 146 #define EM28XX_PINOUT 0
 147
 148 #define EM28XX_INTERLACED_DEFAULT 1
 149
 150 /*
 151 #define (use usbview if you want to get the other alternate number infos)
 152 #define
 153 #define alternate number 2
 154 #define                         Endpoint Address: 82
 155                         Direction: in
 156                         Attribute: 1
 157                         Type: Isoc
 158                         Max Packet Size: 1448
 159                         Interval: 125us
 160
 161   alternate number 7
 162
 163                         Endpoint Address: 82
 164                         Direction: in
 165                         Attribute: 1
 166                         Type: Isoc
 167                         Max Packet Size: 3072
 168                         Interval: 125us
 169 */
 170
 171 /* time to wait when stopping the isoc transfer */
 172 #define EM28XX_URB_TIMEOUT \
 173                         msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
 174
 175 /* time in msecs to wait for i2c writes to finish */
 176 #define EM2800_I2C_WRITE_TIMEOUT 20
 177
 178 enum em28xx_mode {
 179         EM28XX_SUSPEND,
 180         EM28XX_ANALOG_MODE,
 181         EM28XX_DIGITAL_MODE,
 182 };
 183
 184 enum em28xx_stream_state {
 185         STREAM_OFF,
 186         STREAM_INTERRUPT,
 187         STREAM_ON,
 188 };
 189
 190 struct em28xx;
 191
 192 struct em28xx_usb_isoc_ctl {
 193                 /* max packet size of isoc transaction */
 194         int                             max_pkt_size;
 195
 196                 /* number of allocated urbs */
 197         int                             num_bufs;
 198
 199                 /* urb for isoc transfers */
 200         struct urb                      **urb;
 201
 202                 /* transfer buffers for isoc transfer */
 203         char                            **transfer_buffer;
 204
 205                 /* Last buffer command and region */
 206         u8                              cmd;
 207         int                             pos, size, pktsize;
 208
 209                 /* Last field: ODD or EVEN? */
 210         int                             field;
 211
 212                 /* Stores incomplete commands */
 213         u32                             tmp_buf;
 214         int                             tmp_buf_len;
 215
 216                 /* Stores already requested buffers */
 217         struct em28xx_buffer            *vid_buf;
 218         struct em28xx_buffer            *vbi_buf;
 219
 220                 /* Stores the number of received fields */
 221         int                             nfields;
 222
 223                 /* isoc urb callback */
 224         int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
 225
 226 };
 227
 228 /* Struct to enumberate video formats */
 229 struct em28xx_fmt {
 230         char  *name;
 231         u32   fourcc;          /* v4l2 format id */
 232         int   depth;
 233         int   reg;
 234 };
 235
 236 /* buffer for one video frame */
 237 struct em28xx_buffer {
 238         /* common v4l buffer stuff -- must be first */
 239         struct videobuf_buffer vb;
 240
 241         struct list_head frame;
 242         int top_field;
 243         int receiving;
 244 };
 245
 246 struct em28xx_dmaqueue {
 247         struct list_head       active;
 248         struct list_head       queued;
 249
 250         wait_queue_head_t          wq;
 251
 252         /* Counters to control buffer fill */
 253         int                        pos;
 254 };
 255
 256 /* io methods */
 257 enum em28xx_io_method {
 258         IO_NONE,
 259         IO_READ,
 260         IO_MMAP,
 261 };
 262
 263 /* inputs */
 264
 265 #define MAX_EM28XX_INPUT 4
 266 enum enum28xx_itype {
 267         EM28XX_VMUX_COMPOSITE1 = 1,
 268         EM28XX_VMUX_COMPOSITE2,
 269         EM28XX_VMUX_COMPOSITE3,
 270         EM28XX_VMUX_COMPOSITE4,
 271         EM28XX_VMUX_SVIDEO,
 272         EM28XX_VMUX_TELEVISION,
 273         EM28XX_VMUX_CABLE,
 274         EM28XX_VMUX_DVB,
 275         EM28XX_VMUX_DEBUG,
 276         EM28XX_RADIO,
 277 };
 278
 279 enum em28xx_ac97_mode {
 280         EM28XX_NO_AC97 = 0,
 281         EM28XX_AC97_EM202,
 282         EM28XX_AC97_SIGMATEL,
 283         EM28XX_AC97_OTHER,
 284 };
 285
 286 struct em28xx_audio_mode {
 287         enum em28xx_ac97_mode ac97;
 288
 289         u16 ac97_feat;
 290         u32 ac97_vendor_id;
 291
 292         unsigned int has_audio:1;
 293
 294         unsigned int i2s_3rates:1;
 295         unsigned int i2s_5rates:1;
 296 };
 297
 298 /* em28xx has two audio inputs: tuner and line in.
 299    However, on most devices, an auxiliary AC97 codec device is used.
 300    The AC97 device may have several different inputs and outputs,
 301    depending on their model. So, it is possible to use AC97 mixer to
 302    address more than two different entries.
 303  */
 304 enum em28xx_amux {
 305         /* This is the only entry for em28xx tuner input */
 306         EM28XX_AMUX_VIDEO,      /* em28xx tuner, AC97 mixer Video */
 307
 308         EM28XX_AMUX_LINE_IN,    /* AC97 mixer Line In */
 309
 310         /* Some less-common mixer setups */
 311         EM28XX_AMUX_VIDEO2,     /* em28xx Line in, AC97 mixer Video */
 312         EM28XX_AMUX_PHONE,
 313         EM28XX_AMUX_MIC,
 314         EM28XX_AMUX_CD,
 315         EM28XX_AMUX_AUX,
 316         EM28XX_AMUX_PCM_OUT,
 317 };
 318
 319 enum em28xx_aout {
 320         /* AC97 outputs */
 321         EM28XX_AOUT_MASTER = 1 << 0,
 322         EM28XX_AOUT_LINE   = 1 << 1,
 323         EM28XX_AOUT_MONO   = 1 << 2,
 324         EM28XX_AOUT_LFE    = 1 << 3,
 325         EM28XX_AOUT_SURR   = 1 << 4,
 326
 327         /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
 328         EM28XX_AOUT_PCM_IN = 1 << 7,
 329
 330         /* Bits 10-8 are used to indicate the PCM IN record select */
 331         EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
 332         EM28XX_AOUT_PCM_CD      = 1 << 8,
 333         EM28XX_AOUT_PCM_VIDEO   = 2 << 8,
 334         EM28XX_AOUT_PCM_AUX     = 3 << 8,
 335         EM28XX_AOUT_PCM_LINE    = 4 << 8,
 336         EM28XX_AOUT_PCM_STEREO  = 5 << 8,
 337         EM28XX_AOUT_PCM_MONO    = 6 << 8,
 338         EM28XX_AOUT_PCM_PHONE   = 7 << 8,
 339 };
 340
 341 static inline int ac97_return_record_select(int a_out)
 342 {
 343         return (a_out & 0x700) >> 8;
 344 }
 345
 346 struct em28xx_reg_seq {
 347         int reg;
 348         unsigned char val, mask;
 349         int sleep;
 350 };
 351
 352 struct em28xx_input {
 353         enum enum28xx_itype type;
 354         unsigned int vmux;
 355         enum em28xx_amux amux;
 356         enum em28xx_aout aout;
 357         struct em28xx_reg_seq *gpio;
 358 };
 359
 360 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 361
 362 enum em28xx_decoder {
 363         EM28XX_NODECODER = 0,
 364         EM28XX_TVP5150,
 365         EM28XX_SAA711X,
 366 };
 367
 368 enum em28xx_sensor {
 369         EM28XX_NOSENSOR = 0,
 370         EM28XX_MT9V011,
 371         EM28XX_MT9M001,
 372         EM28XX_MT9M111,
 373 };
 374
 375 enum em28xx_adecoder {
 376         EM28XX_NOADECODER = 0,
 377         EM28XX_TVAUDIO,
 378 };
 379
 380 struct em28xx_board {
 381         char *name;
 382         int vchannels;
 383         int tuner_type;
 384         int tuner_addr;
 385
 386         /* i2c flags */
 387         unsigned int tda9887_conf;
 388
 389         /* GPIO sequences */
 390         struct em28xx_reg_seq *dvb_gpio;
 391         struct em28xx_reg_seq *suspend_gpio;
 392         struct em28xx_reg_seq *tuner_gpio;
 393         struct em28xx_reg_seq *mute_gpio;
 394
 395         unsigned int is_em2800:1;
 396         unsigned int has_msp34xx:1;
 397         unsigned int mts_firmware:1;
 398         unsigned int max_range_640_480:1;
 399         unsigned int has_dvb:1;
 400         unsigned int has_snapshot_button:1;
 401         unsigned int is_webcam:1;
 402         unsigned int valid:1;
 403         unsigned int has_ir_i2c:1;
 404
 405         unsigned char xclk, i2c_speed;
 406         unsigned char radio_addr;
 407         unsigned short tvaudio_addr;
 408
 409         enum em28xx_decoder decoder;
 410         enum em28xx_adecoder adecoder;
 411
 412         struct em28xx_input       input[MAX_EM28XX_INPUT];
 413         struct em28xx_input       radio;
 414         struct ir_scancode_table  *ir_codes;
 415 };
 416
 417 struct em28xx_eeprom {
 418         u32 id;                 /* 0x9567eb1a */
 419         u16 vendor_ID;
 420         u16 product_ID;
 421
 422         u16 chip_conf;
 423
 424         u16 board_conf;
 425
 426         u16 string1, string2, string3;
 427
 428         u8 string_idx_table;
 429 };
 430
 431 /* device states */
 432 enum em28xx_dev_state {
 433         DEV_INITIALIZED = 0x01,
 434         DEV_DISCONNECTED = 0x02,
 435         DEV_MISCONFIGURED = 0x04,
 436 };
 437
 438 #define EM28XX_AUDIO_BUFS 5
 439 #define EM28XX_NUM_AUDIO_PACKETS 64
 440 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
 441 #define EM28XX_CAPTURE_STREAM_EN 1
 442
 443 /* em28xx extensions */
 444 #define EM28XX_AUDIO   0x10
 445 #define EM28XX_DVB     0x20
 446
 447 struct em28xx_audio {
 448         char name[50];
 449         char *transfer_buffer[EM28XX_AUDIO_BUFS];
 450         struct urb *urb[EM28XX_AUDIO_BUFS];
 451         struct usb_device *udev;
 452         unsigned int capture_transfer_done;
 453         struct snd_pcm_substream   *capture_pcm_substream;
 454
 455         unsigned int hwptr_done_capture;
 456         struct snd_card            *sndcard;
 457
 458         int users;
 459         enum em28xx_stream_state capture_stream;
 460         spinlock_t slock;
 461 };
 462
 463 struct em28xx;
 464
 465 struct em28xx_fh {
 466         struct em28xx *dev;
 467         unsigned int  stream_on:1;      /* Locks streams */
 468         int           radio;
 469
 470         struct videobuf_queue        vb_vidq;
 471         struct videobuf_queue        vb_vbiq;
 472
 473         enum v4l2_buf_type           type;
 474 };
 475
 476 /* main device struct */
 477 struct em28xx {
 478         /* generic device properties */
 479         char name[30];          /* name (including minor) of the device */
 480         int model;              /* index in the device_data struct */
 481         int devno;              /* marks the number of this device */
 482         enum em28xx_chip_id chip_id;
 483
 484         struct v4l2_device v4l2_dev;
 485         struct em28xx_board board;
 486
 487         /* Webcam specific fields */
 488         enum em28xx_sensor em28xx_sensor;
 489         int sensor_xres, sensor_yres;
 490         int sensor_xtal;
 491
 492         /* Allows progressive (e. g. non-interlaced) mode */
 493         int progressive;
 494
 495         /* Vinmode/Vinctl used at the driver */
 496         int vinmode, vinctl;
 497
 498         unsigned int stream_on:1;       /* Locks streams */
 499         unsigned int has_audio_class:1;
 500         unsigned int has_alsa_audio:1;
 501
 502         struct em28xx_fmt *format;
 503
 504         struct em28xx_IR *ir;
 505
 506         /* Some older em28xx chips needs a waiting time after writing */
 507         unsigned int wait_after_write;
 508
 509         struct list_head        devlist;
 510
 511         u32 i2s_speed;          /* I2S speed for audio digital stream */
 512
 513         struct em28xx_audio_mode audio_mode;
 514
 515         int tuner_type;         /* type of the tuner */
 516         int tuner_addr;         /* tuner address */
 517         int tda9887_conf;
 518         /* i2c i/o */
 519         struct i2c_adapter i2c_adap;
 520         struct i2c_client i2c_client;
 521         /* video for linux */
 522         int users;              /* user count for exclusive use */
 523         struct video_device *vdev;      /* video for linux device struct */
 524         v4l2_std_id norm;       /* selected tv norm */
 525         int ctl_freq;           /* selected frequency */
 526         unsigned int ctl_input; /* selected input */
 527         unsigned int ctl_ainput;/* selected audio input */
 528         unsigned int ctl_aoutput;/* selected audio output */
 529         int mute;
 530         int volume;
 531         /* frame properties */
 532         int width;              /* current frame width */
 533         int height;             /* current frame height */
 534         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 535         unsigned vscale;        /* vertical scale factor (see datasheet) */
 536         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 537         unsigned int video_bytesread;   /* Number of bytes read */
 538
 539         unsigned long hash;     /* eeprom hash - for boards with generic ID */
 540         unsigned long i2c_hash; /* i2c devicelist hash -
 541                                    for boards with generic ID */
 542
 543         struct em28xx_audio adev;
 544
 545         /* states */
 546         enum em28xx_dev_state state;
 547         enum em28xx_io_method io;
 548
 549         /* vbi related state tracking */
 550         int capture_type;
 551         int vbi_read;
 552         unsigned char cur_field;
 553
 554
 555         struct work_struct         request_module_wk;
 556
 557         /* locks */
 558         struct mutex lock;
 559         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 560         /* spinlock_t queue_lock; */
 561         struct list_head inqueue, outqueue;
 562         wait_queue_head_t open, wait_frame, wait_stream;
 563         struct video_device *vbi_dev;
 564         struct video_device *radio_dev;
 565
 566         unsigned char eedata[256];
 567
 568         /* Isoc control struct */
 569         struct em28xx_dmaqueue vidq;
 570         struct em28xx_dmaqueue vbiq;
 571         struct em28xx_usb_isoc_ctl isoc_ctl;
 572         spinlock_t slock;
 573
 574         /* usb transfer */
 575         struct usb_device *udev;        /* the usb device */
 576         int alt;                /* alternate */
 577         int max_pkt_size;       /* max packet size of isoc transaction */
 578         int num_alt;            /* Number of alternative settings */
 579         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 580         struct urb *urb[EM28XX_NUM_BUFS];       /* urb for isoc transfers */
 581         char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc
 582                                                    transfer */
 583         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 584
 585         /* helper funcs that call usb_control_msg */
 586         int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
 587                                         char *buf, int len);
 588         int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
 589         int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
 590                                         char *buf, int len);
 591         int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
 592                                       char *buf, int len);
 593         int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
 594
 595         enum em28xx_mode mode;
 596
 597         /* register numbers for GPO/GPIO registers */
 598         u16 reg_gpo_num, reg_gpio_num;
 599
 600         /* Caches GPO and GPIO registers */
 601         unsigned char   reg_gpo, reg_gpio;
 602
 603         /* Snapshot button */
 604         char snapshot_button_path[30];  /* path of the input dev */
 605         struct input_dev *sbutton_input_dev;
 606         struct delayed_work sbutton_query_work;
 607
 608         struct em28xx_dvb *dvb;
 609
 610         /* I2C keyboard data */
 611         struct i2c_board_info info;
 612         struct IR_i2c_init_data init_data;
 613 };
 614
 615 struct em28xx_ops {
 616         struct list_head next;
 617         char *name;
 618         int id;
 619         int (*init)(struct em28xx *);
 620         int (*fini)(struct em28xx *);
 621 };
 622
 623 /* Provided by em28xx-i2c.c */
 624 void em28xx_do_i2c_scan(struct em28xx *dev);
 625 int  em28xx_i2c_register(struct em28xx *dev);
 626 int  em28xx_i2c_unregister(struct em28xx *dev);
 627
 628 /* Provided by em28xx-core.c */
 629
 630 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
 631 void em28xx_queue_unusedframes(struct em28xx *dev);
 632 void em28xx_release_buffers(struct em28xx *dev);
 633
 634 int em28xx_read_reg_req_len(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 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 638 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 639                           int len);
 640 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 641 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 642
 643 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 644 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 645
 646 int em28xx_audio_analog_set(struct em28xx *dev);
 647 int em28xx_audio_setup(struct em28xx *dev);
 648
 649 int em28xx_colorlevels_set_default(struct em28xx *dev);
 650 int em28xx_capture_start(struct em28xx *dev, int start);
 651 int em28xx_vbi_supported(struct em28xx *dev);
 652 int em28xx_set_outfmt(struct em28xx *dev);
 653 int em28xx_resolution_set(struct em28xx *dev);
 654 int em28xx_set_alternate(struct em28xx *dev);
 655 int em28xx_init_isoc(struct em28xx *dev, int max_packets,
 656                      int num_bufs, int max_pkt_size,
 657                      int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
 658 void em28xx_uninit_isoc(struct em28xx *dev);
 659 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
 660 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 661 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
 662 void em28xx_wake_i2c(struct em28xx *dev);
 663 void em28xx_remove_from_devlist(struct em28xx *dev);
 664 void em28xx_add_into_devlist(struct em28xx *dev);
 665 struct em28xx *em28xx_get_device(int minor,
 666                                  enum v4l2_buf_type *fh_type,
 667                                  int *has_radio);
 668 int em28xx_register_extension(struct em28xx_ops *dev);
 669 void em28xx_unregister_extension(struct em28xx_ops *dev);
 670 void em28xx_init_extension(struct em28xx *dev);
 671 void em28xx_close_extension(struct em28xx *dev);
 672
 673 /* Provided by em28xx-video.c */
 674 int em28xx_register_analog_devices(struct em28xx *dev);
 675 void em28xx_release_analog_resources(struct em28xx *dev);
 676
 677 /* Provided by em28xx-cards.c */
 678 extern int em2800_variant_detect(struct usb_device *udev, int model);
 679 extern void em28xx_pre_card_setup(struct em28xx *dev);
 680 extern void em28xx_card_setup(struct em28xx *dev);
 681 extern struct em28xx_board em28xx_boards[];
 682 extern struct usb_device_id em28xx_id_table[];
 683 extern const unsigned int em28xx_bcount;
 684 void em28xx_register_i2c_ir(struct em28xx *dev);
 685 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 686 void em28xx_release_resources(struct em28xx *dev);
 687
 688 /* Provided by em28xx-input.c */
 689 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 690 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 691 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
 692                                      u32 *ir_raw);
 693 void em28xx_register_snapshot_button(struct em28xx *dev);
 694 void em28xx_deregister_snapshot_button(struct em28xx *dev);
 695
 696 int em28xx_ir_init(struct em28xx *dev);
 697 int em28xx_ir_fini(struct em28xx *dev);
 698
 699 /* Provided by em28xx-vbi.c */
 700 extern struct videobuf_queue_ops em28xx_vbi_qops;
 701
 702 /* printk macros */
 703
 704 #define em28xx_err(fmt, arg...) do {\
 705         printk(KERN_ERR fmt , ##arg); } while (0)
 706
 707 #define em28xx_errdev(fmt, arg...) do {\
 708         printk(KERN_ERR "%s: "fmt,\
 709                         dev->name , ##arg); } while (0)
 710
 711 #define em28xx_info(fmt, arg...) do {\
 712         printk(KERN_INFO "%s: "fmt,\
 713                         dev->name , ##arg); } while (0)
 714 #define em28xx_warn(fmt, arg...) do {\
 715         printk(KERN_WARNING "%s: "fmt,\
 716                         dev->name , ##arg); } while (0)
 717
 718 static inline int em28xx_compression_disable(struct em28xx *dev)
 719 {
 720         /* side effect of disabling scaler and mixer */
 721         return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
 722 }
 723
 724 static inline int em28xx_contrast_get(struct em28xx *dev)
 725 {
 726         return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
 727 }
 728
 729 static inline int em28xx_brightness_get(struct em28xx *dev)
 730 {
 731         return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
 732 }
 733
 734 static inline int em28xx_saturation_get(struct em28xx *dev)
 735 {
 736         return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
 737 }
 738
 739 static inline int em28xx_u_balance_get(struct em28xx *dev)
 740 {
 741         return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
 742 }
 743
 744 static inline int em28xx_v_balance_get(struct em28xx *dev)
 745 {
 746         return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
 747 }
 748
 749 static inline int em28xx_gamma_get(struct em28xx *dev)
 750 {
 751         return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
 752 }
 753
 754 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
 755 {
 756         u8 tmp = (u8) val;
 757         return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
 758 }
 759
 760 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
 761 {
 762         u8 tmp = (u8) val;
 763         return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
 764 }
 765
 766 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
 767 {
 768         u8 tmp = (u8) val;
 769         return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
 770 }
 771
 772 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
 773 {
 774         u8 tmp = (u8) val;
 775         return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
 776 }
 777
 778 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
 779 {
 780         u8 tmp = (u8) val;
 781         return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
 782 }
 783
 784 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 785 {
 786         u8 tmp = (u8) val;
 787         return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
 788 }
 789
 790 /*FIXME: maxw should be dependent of alt mode */
 791 static inline unsigned int norm_maxw(struct em28xx *dev)
 792 {
 793         if (dev->board.is_webcam)
 794                 return dev->sensor_xres;
 795
 796         if (dev->board.max_range_640_480)
 797                 return 640;
 798
 799         return 720;
 800 }
 801
 802 static inline unsigned int norm_maxh(struct em28xx *dev)
 803 {
 804         if (dev->board.is_webcam)
 805                 return dev->sensor_yres;
 806
 807         if (dev->board.max_range_640_480)
 808                 return 480;
 809
 810         return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 811 }
 812 #endif