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/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
 132 /* Limits minimum and default number of buffers */
 133 #define EM28XX_MIN_BUF 4
 134 #define EM28XX_DEF_BUF 8
 135
 136 /*Limits the max URB message size */
 137 #define URB_MAX_CTRL_SIZE 80
 138
 139 /* Params for validated field */
 140 #define EM28XX_BOARD_NOT_VALIDATED 1
 141 #define EM28XX_BOARD_VALIDATED     0
 142
 143 /* Params for em28xx_cmd() audio */
 144 #define EM28XX_START_AUDIO      1
 145 #define EM28XX_STOP_AUDIO       0
 146
 147 /* maximum number of em28xx boards */
 148 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
 149
 150 /* maximum number of frames that can be queued */
 151 #define EM28XX_NUM_FRAMES 5
 152 /* number of frames that get used for v4l2_read() */
 153 #define EM28XX_NUM_READ_FRAMES 2
 154
 155 /* number of buffers for isoc transfers */
 156 #define EM28XX_NUM_BUFS 5
 157 #define EM28XX_DVB_NUM_BUFS 5
 158
 159 /* number of packets for each buffer
 160    windows requests only 64 packets .. so we better do the same
 161    this is what I found out for all alternate numbers there!
 162  */
 163 #define EM28XX_NUM_PACKETS 64
 164 #define EM28XX_DVB_MAX_PACKETS 64
 165
 166 #define EM28XX_INTERLACED_DEFAULT 1
 167
 168 /*
 169 #define (use usbview if you want to get the other alternate number infos)
 170 #define
 171 #define alternate number 2
 172 #define                         Endpoint Address: 82
 173                         Direction: in
 174                         Attribute: 1
 175                         Type: Isoc
 176                         Max Packet Size: 1448
 177                         Interval: 125us
 178
 179   alternate number 7
 180
 181                         Endpoint Address: 82
 182                         Direction: in
 183                         Attribute: 1
 184                         Type: Isoc
 185                         Max Packet Size: 3072
 186                         Interval: 125us
 187 */
 188
 189 /* time to wait when stopping the isoc transfer */
 190 #define EM28XX_URB_TIMEOUT \
 191                         msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
 192
 193 /* time in msecs to wait for i2c writes to finish */
 194 #define EM2800_I2C_WRITE_TIMEOUT 20
 195
 196 enum em28xx_mode {
 197         EM28XX_SUSPEND,
 198         EM28XX_ANALOG_MODE,
 199         EM28XX_DIGITAL_MODE,
 200 };
 201
 202
 203 struct em28xx;
 204
 205 struct em28xx_usb_isoc_bufs {
 206                 /* max packet size of isoc transaction */
 207         int                             max_pkt_size;
 208
 209                 /* number of packets in each buffer */
 210         int                             num_packets;
 211
 212                 /* number of allocated urbs */
 213         int                             num_bufs;
 214
 215                 /* urb for isoc transfers */
 216         struct urb                      **urb;
 217
 218                 /* transfer buffers for isoc transfer */
 219         char                            **transfer_buffer;
 220 };
 221
 222 struct em28xx_usb_isoc_ctl {
 223                 /* isoc transfer buffers for analog mode */
 224         struct em28xx_usb_isoc_bufs     analog_bufs;
 225
 226                 /* isoc transfer buffers for digital mode */
 227         struct em28xx_usb_isoc_bufs     digital_bufs;
 228
 229                 /* Stores already requested buffers */
 230         struct em28xx_buffer            *vid_buf;
 231         struct em28xx_buffer            *vbi_buf;
 232
 233                 /* isoc urb callback */
 234         int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
 235
 236 };
 237
 238 /* Struct to enumberate video formats */
 239 struct em28xx_fmt {
 240         char  *name;
 241         u32   fourcc;          /* v4l2 format id */
 242         int   depth;
 243         int   reg;
 244 };
 245
 246 /* buffer for one video frame */
 247 struct em28xx_buffer {
 248         /* common v4l buffer stuff -- must be first */
 249         struct videobuf_buffer vb;
 250
 251         struct list_head frame;
 252         int top_field;
 253         int receiving;
 254 };
 255
 256 struct em28xx_dmaqueue {
 257         struct list_head       active;
 258         struct list_head       queued;
 259
 260         wait_queue_head_t          wq;
 261
 262         /* Counters to control buffer fill */
 263         int                        pos;
 264 };
 265
 266 /* io methods */
 267 enum em28xx_io_method {
 268         IO_NONE,
 269         IO_READ,
 270         IO_MMAP,
 271 };
 272
 273 /* inputs */
 274
 275 #define MAX_EM28XX_INPUT 4
 276 enum enum28xx_itype {
 277         EM28XX_VMUX_COMPOSITE1 = 1,
 278         EM28XX_VMUX_COMPOSITE2,
 279         EM28XX_VMUX_COMPOSITE3,
 280         EM28XX_VMUX_COMPOSITE4,
 281         EM28XX_VMUX_SVIDEO,
 282         EM28XX_VMUX_TELEVISION,
 283         EM28XX_VMUX_CABLE,
 284         EM28XX_VMUX_DVB,
 285         EM28XX_VMUX_DEBUG,
 286         EM28XX_RADIO,
 287 };
 288
 289 enum em28xx_ac97_mode {
 290         EM28XX_NO_AC97 = 0,
 291         EM28XX_AC97_EM202,
 292         EM28XX_AC97_SIGMATEL,
 293         EM28XX_AC97_OTHER,
 294 };
 295
 296 struct em28xx_audio_mode {
 297         enum em28xx_ac97_mode ac97;
 298
 299         u16 ac97_feat;
 300         u32 ac97_vendor_id;
 301
 302         unsigned int has_audio:1;
 303
 304         unsigned int i2s_3rates:1;
 305         unsigned int i2s_5rates:1;
 306 };
 307
 308 /* em28xx has two audio inputs: tuner and line in.
 309    However, on most devices, an auxiliary AC97 codec device is used.
 310    The AC97 device may have several different inputs and outputs,
 311    depending on their model. So, it is possible to use AC97 mixer to
 312    address more than two different entries.
 313  */
 314 enum em28xx_amux {
 315         /* This is the only entry for em28xx tuner input */
 316         EM28XX_AMUX_VIDEO,      /* em28xx tuner, AC97 mixer Video */
 317
 318         EM28XX_AMUX_LINE_IN,    /* AC97 mixer Line In */
 319
 320         /* Some less-common mixer setups */
 321         EM28XX_AMUX_VIDEO2,     /* em28xx Line in, AC97 mixer Video */
 322         EM28XX_AMUX_PHONE,
 323         EM28XX_AMUX_MIC,
 324         EM28XX_AMUX_CD,
 325         EM28XX_AMUX_AUX,
 326         EM28XX_AMUX_PCM_OUT,
 327 };
 328
 329 enum em28xx_aout {
 330         /* AC97 outputs */
 331         EM28XX_AOUT_MASTER = 1 << 0,
 332         EM28XX_AOUT_LINE   = 1 << 1,
 333         EM28XX_AOUT_MONO   = 1 << 2,
 334         EM28XX_AOUT_LFE    = 1 << 3,
 335         EM28XX_AOUT_SURR   = 1 << 4,
 336
 337         /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
 338         EM28XX_AOUT_PCM_IN = 1 << 7,
 339
 340         /* Bits 10-8 are used to indicate the PCM IN record select */
 341         EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
 342         EM28XX_AOUT_PCM_CD      = 1 << 8,
 343         EM28XX_AOUT_PCM_VIDEO   = 2 << 8,
 344         EM28XX_AOUT_PCM_AUX     = 3 << 8,
 345         EM28XX_AOUT_PCM_LINE    = 4 << 8,
 346         EM28XX_AOUT_PCM_STEREO  = 5 << 8,
 347         EM28XX_AOUT_PCM_MONO    = 6 << 8,
 348         EM28XX_AOUT_PCM_PHONE   = 7 << 8,
 349 };
 350
 351 static inline int ac97_return_record_select(int a_out)
 352 {
 353         return (a_out & 0x700) >> 8;
 354 }
 355
 356 struct em28xx_reg_seq {
 357         int reg;
 358         unsigned char val, mask;
 359         int sleep;
 360 };
 361
 362 struct em28xx_input {
 363         enum enum28xx_itype type;
 364         unsigned int vmux;
 365         enum em28xx_amux amux;
 366         enum em28xx_aout aout;
 367         struct em28xx_reg_seq *gpio;
 368 };
 369
 370 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 371
 372 enum em28xx_decoder {
 373         EM28XX_NODECODER = 0,
 374         EM28XX_TVP5150,
 375         EM28XX_SAA711X,
 376 };
 377
 378 enum em28xx_sensor {
 379         EM28XX_NOSENSOR = 0,
 380         EM28XX_MT9V011,
 381         EM28XX_MT9M001,
 382         EM28XX_MT9M111,
 383 };
 384
 385 enum em28xx_adecoder {
 386         EM28XX_NOADECODER = 0,
 387         EM28XX_TVAUDIO,
 388 };
 389
 390 struct em28xx_board {
 391         char *name;
 392         int vchannels;
 393         int tuner_type;
 394         int tuner_addr;
 395
 396         /* i2c flags */
 397         unsigned int tda9887_conf;
 398
 399         /* GPIO sequences */
 400         struct em28xx_reg_seq *dvb_gpio;
 401         struct em28xx_reg_seq *suspend_gpio;
 402         struct em28xx_reg_seq *tuner_gpio;
 403         struct em28xx_reg_seq *mute_gpio;
 404
 405         unsigned int is_em2800:1;
 406         unsigned int has_msp34xx:1;
 407         unsigned int mts_firmware:1;
 408         unsigned int max_range_640_480:1;
 409         unsigned int has_dvb:1;
 410         unsigned int has_snapshot_button:1;
 411         unsigned int is_webcam:1;
 412         unsigned int valid:1;
 413         unsigned int has_ir_i2c:1;
 414
 415         unsigned char xclk, i2c_speed;
 416         unsigned char radio_addr;
 417         unsigned short tvaudio_addr;
 418
 419         enum em28xx_decoder decoder;
 420         enum em28xx_adecoder adecoder;
 421
 422         struct em28xx_input       input[MAX_EM28XX_INPUT];
 423         struct em28xx_input       radio;
 424         char                      *ir_codes;
 425 };
 426
 427 struct em28xx_eeprom {
 428         u32 id;                 /* 0x9567eb1a */
 429         u16 vendor_ID;
 430         u16 product_ID;
 431
 432         u16 chip_conf;
 433
 434         u16 board_conf;
 435
 436         u16 string1, string2, string3;
 437
 438         u8 string_idx_table;
 439 };
 440
 441 /* device states */
 442 enum em28xx_dev_state {
 443         DEV_INITIALIZED = 0x01,
 444         DEV_DISCONNECTED = 0x02,
 445         DEV_MISCONFIGURED = 0x04,
 446 };
 447
 448 #define EM28XX_AUDIO_BUFS 5
 449 #define EM28XX_NUM_AUDIO_PACKETS 64
 450 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
 451 #define EM28XX_CAPTURE_STREAM_EN 1
 452
 453 /* em28xx extensions */
 454 #define EM28XX_AUDIO   0x10
 455 #define EM28XX_DVB     0x20
 456 #define EM28XX_RC      0x30
 457
 458 /* em28xx resource types (used for res_get/res_lock etc */
 459 #define EM28XX_RESOURCE_VIDEO 0x01
 460 #define EM28XX_RESOURCE_VBI   0x02
 461
 462 struct em28xx_audio {
 463         char name[50];
 464         char *transfer_buffer[EM28XX_AUDIO_BUFS];
 465         struct urb *urb[EM28XX_AUDIO_BUFS];
 466         struct usb_device *udev;
 467         unsigned int capture_transfer_done;
 468         struct snd_pcm_substream   *capture_pcm_substream;
 469
 470         unsigned int hwptr_done_capture;
 471         struct snd_card            *sndcard;
 472
 473         int users;
 474         spinlock_t slock;
 475 };
 476
 477 struct em28xx;
 478
 479 struct em28xx_fh {
 480         struct em28xx *dev;
 481         int           radio;
 482         unsigned int  resources;
 483
 484         struct videobuf_queue        vb_vidq;
 485         struct videobuf_queue        vb_vbiq;
 486
 487         enum v4l2_buf_type           type;
 488 };
 489
 490 /* main device struct */
 491 struct em28xx {
 492         /* generic device properties */
 493         char name[30];          /* name (including minor) of the device */
 494         int model;              /* index in the device_data struct */
 495         int devno;              /* marks the number of this device */
 496         enum em28xx_chip_id chip_id;
 497
 498         int audio_ifnum;
 499
 500         struct v4l2_device v4l2_dev;
 501         struct em28xx_board board;
 502
 503         /* Webcam specific fields */
 504         enum em28xx_sensor em28xx_sensor;
 505         int sensor_xres, sensor_yres;
 506         int sensor_xtal;
 507
 508         /* Allows progressive (e. g. non-interlaced) mode */
 509         int progressive;
 510
 511         /* Vinmode/Vinctl used at the driver */
 512         int vinmode, vinctl;
 513
 514         unsigned int has_audio_class:1;
 515         unsigned int has_alsa_audio:1;
 516         unsigned int is_audio_only:1;
 517
 518         /* Controls audio streaming */
 519         struct work_struct wq_trigger;              /* Trigger to start/stop audio for alsa module */
 520          atomic_t       stream_started;      /* stream should be running if true */
 521
 522         struct em28xx_fmt *format;
 523
 524         struct em28xx_IR *ir;
 525
 526         /* Some older em28xx chips needs a waiting time after writing */
 527         unsigned int wait_after_write;
 528
 529         struct list_head        devlist;
 530
 531         u32 i2s_speed;          /* I2S speed for audio digital stream */
 532
 533         struct em28xx_audio_mode audio_mode;
 534
 535         int tuner_type;         /* type of the tuner */
 536         int tuner_addr;         /* tuner address */
 537         int tda9887_conf;
 538         /* i2c i/o */
 539         struct i2c_adapter i2c_adap;
 540         struct i2c_client i2c_client;
 541         /* video for linux */
 542         int users;              /* user count for exclusive use */
 543         struct video_device *vdev;      /* video for linux device struct */
 544         v4l2_std_id norm;       /* selected tv norm */
 545         int ctl_freq;           /* selected frequency */
 546         unsigned int ctl_input; /* selected input */
 547         unsigned int ctl_ainput;/* selected audio input */
 548         unsigned int ctl_aoutput;/* selected audio output */
 549         int mute;
 550         int volume;
 551         /* frame properties */
 552         int width;              /* current frame width */
 553         int height;             /* current frame height */
 554         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 555         unsigned vscale;        /* vertical scale factor (see datasheet) */
 556         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 557         unsigned int video_bytesread;   /* Number of bytes read */
 558
 559         unsigned long hash;     /* eeprom hash - for boards with generic ID */
 560         unsigned long i2c_hash; /* i2c devicelist hash -
 561                                    for boards with generic ID */
 562
 563         struct em28xx_audio adev;
 564
 565         /* states */
 566         enum em28xx_dev_state state;
 567         enum em28xx_io_method io;
 568
 569         /* vbi related state tracking */
 570         int capture_type;
 571         int vbi_read;
 572         unsigned char cur_field;
 573         unsigned int vbi_width;
 574         unsigned int vbi_height; /* lines per field */
 575
 576         struct work_struct         request_module_wk;
 577
 578         /* locks */
 579         struct mutex lock;
 580         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 581         /* spinlock_t queue_lock; */
 582         struct list_head inqueue, outqueue;
 583         wait_queue_head_t open, wait_frame, wait_stream;
 584         struct video_device *vbi_dev;
 585         struct video_device *radio_dev;
 586
 587         /* resources in use */
 588         unsigned int resources;
 589
 590         unsigned char eedata[256];
 591
 592         /* Isoc control struct */
 593         struct em28xx_dmaqueue vidq;
 594         struct em28xx_dmaqueue vbiq;
 595         struct em28xx_usb_isoc_ctl isoc_ctl;
 596         spinlock_t slock;
 597
 598         /* usb transfer */
 599         struct usb_device *udev;        /* the usb device */
 600         int alt;                /* alternate */
 601         int max_pkt_size;       /* max packet size of isoc transaction */
 602         int num_alt;            /* Number of alternative settings */
 603         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 604         int dvb_alt;                            /* alternate for DVB */
 605         unsigned int dvb_max_pkt_size;          /* wMaxPacketSize for DVB */
 606         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 607
 608         /* helper funcs that call usb_control_msg */
 609         int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
 610                                         char *buf, int len);
 611         int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
 612         int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
 613                                         char *buf, int len);
 614         int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
 615                                       char *buf, int len);
 616         int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
 617
 618         enum em28xx_mode mode;
 619
 620         /* register numbers for GPO/GPIO registers */
 621         u16 reg_gpo_num, reg_gpio_num;
 622
 623         /* Caches GPO and GPIO registers */
 624         unsigned char   reg_gpo, reg_gpio;
 625
 626         /* Snapshot button */
 627         char snapshot_button_path[30];  /* path of the input dev */
 628         struct input_dev *sbutton_input_dev;
 629         struct delayed_work sbutton_query_work;
 630
 631         struct em28xx_dvb *dvb;
 632
 633         /* I2C keyboard data */
 634         struct IR_i2c_init_data init_data;
 635 };
 636
 637 struct em28xx_ops {
 638         struct list_head next;
 639         char *name;
 640         int id;
 641         int (*init)(struct em28xx *);
 642         int (*fini)(struct em28xx *);
 643 };
 644
 645 /* Provided by em28xx-i2c.c */
 646 void em28xx_do_i2c_scan(struct em28xx *dev);
 647 int  em28xx_i2c_register(struct em28xx *dev);
 648 int  em28xx_i2c_unregister(struct em28xx *dev);
 649
 650 /* Provided by em28xx-core.c */
 651
 652 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
 653 void em28xx_queue_unusedframes(struct em28xx *dev);
 654 void em28xx_release_buffers(struct em28xx *dev);
 655
 656 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 657                             char *buf, int len);
 658 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
 659 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 660 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 661                           int len);
 662 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 663 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 664 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
 665                                  u8 bitmask);
 666
 667 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 668 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 669
 670 int em28xx_audio_analog_set(struct em28xx *dev);
 671 int em28xx_audio_setup(struct em28xx *dev);
 672
 673 int em28xx_colorlevels_set_default(struct em28xx *dev);
 674 int em28xx_capture_start(struct em28xx *dev, int start);
 675 int em28xx_vbi_supported(struct em28xx *dev);
 676 int em28xx_set_outfmt(struct em28xx *dev);
 677 int em28xx_resolution_set(struct em28xx *dev);
 678 int em28xx_set_alternate(struct em28xx *dev);
 679 int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
 680                       int max_packets, int num_bufs, int max_pkt_size);
 681 int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
 682                      int max_packets, int num_bufs, int max_pkt_size,
 683                      int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
 684 void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode);
 685 void em28xx_stop_urbs(struct em28xx *dev);
 686 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
 687 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 688 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
 689 void em28xx_wake_i2c(struct em28xx *dev);
 690 int em28xx_register_extension(struct em28xx_ops *dev);
 691 void em28xx_unregister_extension(struct em28xx_ops *dev);
 692 void em28xx_init_extension(struct em28xx *dev);
 693 void em28xx_close_extension(struct em28xx *dev);
 694
 695 /* Provided by em28xx-video.c */
 696 int em28xx_register_analog_devices(struct em28xx *dev);
 697 void em28xx_release_analog_resources(struct em28xx *dev);
 698
 699 /* Provided by em28xx-cards.c */
 700 extern int em2800_variant_detect(struct usb_device *udev, int model);
 701 extern void em28xx_pre_card_setup(struct em28xx *dev);
 702 extern void em28xx_card_setup(struct em28xx *dev);
 703 extern struct em28xx_board em28xx_boards[];
 704 extern struct usb_device_id em28xx_id_table[];
 705 extern const unsigned int em28xx_bcount;
 706 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 707 void em28xx_release_resources(struct em28xx *dev);
 708
 709 /* Provided by em28xx-vbi.c */
 710 extern struct videobuf_queue_ops em28xx_vbi_qops;
 711
 712 /* printk macros */
 713
 714 #define em28xx_err(fmt, arg...) do {\
 715         printk(KERN_ERR fmt , ##arg); } while (0)
 716
 717 #define em28xx_errdev(fmt, arg...) do {\
 718         printk(KERN_ERR "%s: "fmt,\
 719                         dev->name , ##arg); } while (0)
 720
 721 #define em28xx_info(fmt, arg...) do {\
 722         printk(KERN_INFO "%s: "fmt,\
 723                         dev->name , ##arg); } while (0)
 724 #define em28xx_warn(fmt, arg...) do {\
 725         printk(KERN_WARNING "%s: "fmt,\
 726                         dev->name , ##arg); } while (0)
 727
 728 static inline int em28xx_compression_disable(struct em28xx *dev)
 729 {
 730         /* side effect of disabling scaler and mixer */
 731         return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
 732 }
 733
 734 static inline int em28xx_contrast_get(struct em28xx *dev)
 735 {
 736         return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
 737 }
 738
 739 static inline int em28xx_brightness_get(struct em28xx *dev)
 740 {
 741         return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
 742 }
 743
 744 static inline int em28xx_saturation_get(struct em28xx *dev)
 745 {
 746         return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
 747 }
 748
 749 static inline int em28xx_u_balance_get(struct em28xx *dev)
 750 {
 751         return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
 752 }
 753
 754 static inline int em28xx_v_balance_get(struct em28xx *dev)
 755 {
 756         return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
 757 }
 758
 759 static inline int em28xx_gamma_get(struct em28xx *dev)
 760 {
 761         return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
 762 }
 763
 764 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
 765 {
 766         u8 tmp = (u8) val;
 767         return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
 768 }
 769
 770 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
 771 {
 772         u8 tmp = (u8) val;
 773         return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
 774 }
 775
 776 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
 777 {
 778         u8 tmp = (u8) val;
 779         return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
 780 }
 781
 782 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
 783 {
 784         u8 tmp = (u8) val;
 785         return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
 786 }
 787
 788 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
 789 {
 790         u8 tmp = (u8) val;
 791         return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
 792 }
 793
 794 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 795 {
 796         u8 tmp = (u8) val;
 797         return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
 798 }
 799
 800 /*FIXME: maxw should be dependent of alt mode */
 801 static inline unsigned int norm_maxw(struct em28xx *dev)
 802 {
 803         if (dev->board.is_webcam)
 804                 return dev->sensor_xres;
 805
 806         if (dev->board.max_range_640_480)
 807                 return 640;
 808
 809         return 720;
 810 }
 811
 812 static inline unsigned int norm_maxh(struct em28xx *dev)
 813 {
 814         if (dev->board.is_webcam)
 815                 return dev->sensor_yres;
 816
 817         if (dev->board.max_range_640_480)
 818                 return 480;
 819
 820         return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 821 }
 822 #endif