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
 112 /* Limits minimum and default number of buffers */
 113 #define EM28XX_MIN_BUF 4
 114 #define EM28XX_DEF_BUF 8
 115
 116 /*Limits the max URB message size */
 117 #define URB_MAX_CTRL_SIZE 80
 118
 119 /* Params for validated field */
 120 #define EM28XX_BOARD_NOT_VALIDATED 1
 121 #define EM28XX_BOARD_VALIDATED     0
 122
 123 /* Params for em28xx_cmd() audio */
 124 #define EM28XX_START_AUDIO      1
 125 #define EM28XX_STOP_AUDIO       0
 126
 127 /* maximum number of em28xx boards */
 128 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
 129
 130 /* maximum number of frames that can be queued */
 131 #define EM28XX_NUM_FRAMES 5
 132 /* number of frames that get used for v4l2_read() */
 133 #define EM28XX_NUM_READ_FRAMES 2
 134
 135 /* number of buffers for isoc transfers */
 136 #define EM28XX_NUM_BUFS 5
 137
 138 /* number of packets for each buffer
 139    windows requests only 40 packets .. so we better do the same
 140    this is what I found out for all alternate numbers there!
 141  */
 142 #define EM28XX_NUM_PACKETS 40
 143
 144 /* default alternate; 0 means choose the best */
 145 #define EM28XX_PINOUT 0
 146
 147 #define EM28XX_INTERLACED_DEFAULT 1
 148
 149 /*
 150 #define (use usbview if you want to get the other alternate number infos)
 151 #define
 152 #define alternate number 2
 153 #define                         Endpoint Address: 82
 154                         Direction: in
 155                         Attribute: 1
 156                         Type: Isoc
 157                         Max Packet Size: 1448
 158                         Interval: 125us
 159
 160   alternate number 7
 161
 162                         Endpoint Address: 82
 163                         Direction: in
 164                         Attribute: 1
 165                         Type: Isoc
 166                         Max Packet Size: 3072
 167                         Interval: 125us
 168 */
 169
 170 /* time to wait when stopping the isoc transfer */
 171 #define EM28XX_URB_TIMEOUT \
 172                         msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
 173
 174 /* time in msecs to wait for i2c writes to finish */
 175 #define EM2800_I2C_WRITE_TIMEOUT 20
 176
 177 enum em28xx_mode {
 178         EM28XX_SUSPEND,
 179         EM28XX_ANALOG_MODE,
 180         EM28XX_DIGITAL_MODE,
 181 };
 182
 183 enum em28xx_stream_state {
 184         STREAM_OFF,
 185         STREAM_INTERRUPT,
 186         STREAM_ON,
 187 };
 188
 189 struct em28xx;
 190
 191 struct em28xx_usb_isoc_ctl {
 192                 /* max packet size of isoc transaction */
 193         int                             max_pkt_size;
 194
 195                 /* number of allocated urbs */
 196         int                             num_bufs;
 197
 198                 /* urb for isoc transfers */
 199         struct urb                      **urb;
 200
 201                 /* transfer buffers for isoc transfer */
 202         char                            **transfer_buffer;
 203
 204                 /* Last buffer command and region */
 205         u8                              cmd;
 206         int                             pos, size, pktsize;
 207
 208                 /* Last field: ODD or EVEN? */
 209         int                             field;
 210
 211                 /* Stores incomplete commands */
 212         u32                             tmp_buf;
 213         int                             tmp_buf_len;
 214
 215                 /* Stores already requested buffers */
 216         struct em28xx_buffer            *buf;
 217
 218                 /* Stores the number of received fields */
 219         int                             nfields;
 220
 221                 /* isoc urb callback */
 222         int (*isoc_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 videobuf_buffer vb;
 238
 239         struct list_head frame;
 240         int top_field;
 241         int receiving;
 242 };
 243
 244 struct em28xx_dmaqueue {
 245         struct list_head       active;
 246         struct list_head       queued;
 247
 248         wait_queue_head_t          wq;
 249
 250         /* Counters to control buffer fill */
 251         int                        pos;
 252 };
 253
 254 /* io methods */
 255 enum em28xx_io_method {
 256         IO_NONE,
 257         IO_READ,
 258         IO_MMAP,
 259 };
 260
 261 /* inputs */
 262
 263 #define MAX_EM28XX_INPUT 4
 264 enum enum28xx_itype {
 265         EM28XX_VMUX_COMPOSITE1 = 1,
 266         EM28XX_VMUX_COMPOSITE2,
 267         EM28XX_VMUX_COMPOSITE3,
 268         EM28XX_VMUX_COMPOSITE4,
 269         EM28XX_VMUX_SVIDEO,
 270         EM28XX_VMUX_TELEVISION,
 271         EM28XX_VMUX_CABLE,
 272         EM28XX_VMUX_DVB,
 273         EM28XX_VMUX_DEBUG,
 274         EM28XX_RADIO,
 275 };
 276
 277 enum em28xx_ac97_mode {
 278         EM28XX_NO_AC97 = 0,
 279         EM28XX_AC97_EM202,
 280         EM28XX_AC97_SIGMATEL,
 281         EM28XX_AC97_OTHER,
 282 };
 283
 284 struct em28xx_audio_mode {
 285         enum em28xx_ac97_mode ac97;
 286
 287         u16 ac97_feat;
 288         u32 ac97_vendor_id;
 289
 290         unsigned int has_audio:1;
 291
 292         unsigned int i2s_3rates:1;
 293         unsigned int i2s_5rates:1;
 294 };
 295
 296 /* em28xx has two audio inputs: tuner and line in.
 297    However, on most devices, an auxiliary AC97 codec device is used.
 298    The AC97 device may have several different inputs and outputs,
 299    depending on their model. So, it is possible to use AC97 mixer to
 300    address more than two different entries.
 301  */
 302 enum em28xx_amux {
 303         /* This is the only entry for em28xx tuner input */
 304         EM28XX_AMUX_VIDEO,      /* em28xx tuner, AC97 mixer Video */
 305
 306         EM28XX_AMUX_LINE_IN,    /* AC97 mixer Line In */
 307
 308         /* Some less-common mixer setups */
 309         EM28XX_AMUX_VIDEO2,     /* em28xx Line in, AC97 mixer Video */
 310         EM28XX_AMUX_PHONE,
 311         EM28XX_AMUX_MIC,
 312         EM28XX_AMUX_CD,
 313         EM28XX_AMUX_AUX,
 314         EM28XX_AMUX_PCM_OUT,
 315 };
 316
 317 enum em28xx_aout {
 318         /* AC97 outputs */
 319         EM28XX_AOUT_MASTER = 1 << 0,
 320         EM28XX_AOUT_LINE   = 1 << 1,
 321         EM28XX_AOUT_MONO   = 1 << 2,
 322         EM28XX_AOUT_LFE    = 1 << 3,
 323         EM28XX_AOUT_SURR   = 1 << 4,
 324
 325         /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
 326         EM28XX_AOUT_PCM_IN = 1 << 7,
 327
 328         /* Bits 10-8 are used to indicate the PCM IN record select */
 329         EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
 330         EM28XX_AOUT_PCM_CD      = 1 << 8,
 331         EM28XX_AOUT_PCM_VIDEO   = 2 << 8,
 332         EM28XX_AOUT_PCM_AUX     = 3 << 8,
 333         EM28XX_AOUT_PCM_LINE    = 4 << 8,
 334         EM28XX_AOUT_PCM_STEREO  = 5 << 8,
 335         EM28XX_AOUT_PCM_MONO    = 6 << 8,
 336         EM28XX_AOUT_PCM_PHONE   = 7 << 8,
 337 };
 338
 339 static inline int ac97_return_record_select(int a_out)
 340 {
 341         return (a_out & 0x700) >> 8;
 342 }
 343
 344 struct em28xx_reg_seq {
 345         int reg;
 346         unsigned char val, mask;
 347         int sleep;
 348 };
 349
 350 struct em28xx_input {
 351         enum enum28xx_itype type;
 352         unsigned int vmux;
 353         enum em28xx_amux amux;
 354         enum em28xx_aout aout;
 355         struct em28xx_reg_seq *gpio;
 356 };
 357
 358 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 359
 360 enum em28xx_decoder {
 361         EM28XX_NODECODER,
 362         EM28XX_TVP5150,
 363         EM28XX_SAA711X,
 364         EM28XX_MT9V011,
 365 };
 366
 367 enum em28xx_adecoder {
 368         EM28XX_NOADECODER = 0,
 369         EM28XX_TVAUDIO,
 370 };
 371
 372 struct em28xx_board {
 373         char *name;
 374         int vchannels;
 375         int tuner_type;
 376         int tuner_addr;
 377
 378         /* i2c flags */
 379         unsigned int tda9887_conf;
 380
 381         /* GPIO sequences */
 382         struct em28xx_reg_seq *dvb_gpio;
 383         struct em28xx_reg_seq *suspend_gpio;
 384         struct em28xx_reg_seq *tuner_gpio;
 385         struct em28xx_reg_seq *mute_gpio;
 386
 387         unsigned int is_em2800:1;
 388         unsigned int has_msp34xx:1;
 389         unsigned int mts_firmware:1;
 390         unsigned int max_range_640_480:1;
 391         unsigned int has_dvb:1;
 392         unsigned int has_snapshot_button:1;
 393         unsigned int is_27xx:1;
 394         unsigned int valid:1;
 395
 396         unsigned char xclk, i2c_speed;
 397         unsigned char radio_addr;
 398         unsigned short tvaudio_addr;
 399
 400         enum em28xx_decoder decoder;
 401         enum em28xx_adecoder adecoder;
 402
 403         struct em28xx_input       input[MAX_EM28XX_INPUT];
 404         struct em28xx_input       radio;
 405         IR_KEYTAB_TYPE            *ir_codes;
 406 };
 407
 408 struct em28xx_eeprom {
 409         u32 id;                 /* 0x9567eb1a */
 410         u16 vendor_ID;
 411         u16 product_ID;
 412
 413         u16 chip_conf;
 414
 415         u16 board_conf;
 416
 417         u16 string1, string2, string3;
 418
 419         u8 string_idx_table;
 420 };
 421
 422 /* device states */
 423 enum em28xx_dev_state {
 424         DEV_INITIALIZED = 0x01,
 425         DEV_DISCONNECTED = 0x02,
 426         DEV_MISCONFIGURED = 0x04,
 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
 438 struct em28xx_audio {
 439         char name[50];
 440         char *transfer_buffer[EM28XX_AUDIO_BUFS];
 441         struct urb *urb[EM28XX_AUDIO_BUFS];
 442         struct usb_device *udev;
 443         unsigned int capture_transfer_done;
 444         struct snd_pcm_substream   *capture_pcm_substream;
 445
 446         unsigned int hwptr_done_capture;
 447         struct snd_card            *sndcard;
 448
 449         int users;
 450         enum em28xx_stream_state capture_stream;
 451         spinlock_t slock;
 452 };
 453
 454 struct em28xx;
 455
 456 struct em28xx_fh {
 457         struct em28xx *dev;
 458         unsigned int  stream_on:1;      /* Locks streams */
 459         int           radio;
 460
 461         struct videobuf_queue        vb_vidq;
 462
 463         enum v4l2_buf_type           type;
 464 };
 465
 466 /* main device struct */
 467 struct em28xx {
 468         /* generic device properties */
 469         char name[30];          /* name (including minor) of the device */
 470         int model;              /* index in the device_data struct */
 471         int devno;              /* marks the number of this device */
 472         enum em28xx_chip_id chip_id;
 473
 474         struct v4l2_device v4l2_dev;
 475         struct em28xx_board board;
 476
 477         unsigned int stream_on:1;       /* Locks streams */
 478         unsigned int has_audio_class:1;
 479         unsigned int has_alsa_audio:1;
 480
 481         struct em28xx_fmt *format;
 482
 483         struct em28xx_IR *ir;
 484
 485         /* Some older em28xx chips needs a waiting time after writing */
 486         unsigned int wait_after_write;
 487
 488         struct list_head        devlist;
 489
 490         u32 i2s_speed;          /* I2S speed for audio digital stream */
 491
 492         struct em28xx_audio_mode audio_mode;
 493
 494         int tuner_type;         /* type of the tuner */
 495         int tuner_addr;         /* tuner address */
 496         int tda9887_conf;
 497         /* i2c i/o */
 498         struct i2c_adapter i2c_adap;
 499         struct i2c_client i2c_client;
 500         /* video for linux */
 501         int users;              /* user count for exclusive use */
 502         struct video_device *vdev;      /* video for linux device struct */
 503         v4l2_std_id norm;       /* selected tv norm */
 504         int ctl_freq;           /* selected frequency */
 505         unsigned int ctl_input; /* selected input */
 506         unsigned int ctl_ainput;/* selected audio input */
 507         unsigned int ctl_aoutput;/* selected audio output */
 508         int mute;
 509         int volume;
 510         /* frame properties */
 511         int width;              /* current frame width */
 512         int height;             /* current frame height */
 513         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 514         unsigned vscale;        /* vertical scale factor (see datasheet) */
 515         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 516         unsigned int video_bytesread;   /* Number of bytes read */
 517
 518         unsigned long hash;     /* eeprom hash - for boards with generic ID */
 519         unsigned long i2c_hash; /* i2c devicelist hash -
 520                                    for boards with generic ID */
 521
 522         struct em28xx_audio adev;
 523
 524         /* states */
 525         enum em28xx_dev_state state;
 526         enum em28xx_io_method io;
 527
 528         struct work_struct         request_module_wk;
 529
 530         /* locks */
 531         struct mutex lock;
 532         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 533         /* spinlock_t queue_lock; */
 534         struct list_head inqueue, outqueue;
 535         wait_queue_head_t open, wait_frame, wait_stream;
 536         struct video_device *vbi_dev;
 537         struct video_device *radio_dev;
 538
 539         unsigned char eedata[256];
 540
 541         /* Isoc control struct */
 542         struct em28xx_dmaqueue vidq;
 543         struct em28xx_usb_isoc_ctl isoc_ctl;
 544         spinlock_t slock;
 545
 546         /* usb transfer */
 547         struct usb_device *udev;        /* the usb device */
 548         int alt;                /* alternate */
 549         int max_pkt_size;       /* max packet size of isoc transaction */
 550         int num_alt;            /* Number of alternative settings */
 551         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 552         struct urb *urb[EM28XX_NUM_BUFS];       /* urb for isoc transfers */
 553         char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc
 554                                                    transfer */
 555         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 556
 557         /* helper funcs that call usb_control_msg */
 558         int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
 559                                         char *buf, int len);
 560         int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
 561         int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
 562                                         char *buf, int len);
 563         int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
 564                                       char *buf, int len);
 565         int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
 566
 567         enum em28xx_mode mode;
 568
 569         /* register numbers for GPO/GPIO registers */
 570         u16 reg_gpo_num, reg_gpio_num;
 571
 572         /* Caches GPO and GPIO registers */
 573         unsigned char   reg_gpo, reg_gpio;
 574
 575         /* Snapshot button */
 576         char snapshot_button_path[30];  /* path of the input dev */
 577         struct input_dev *sbutton_input_dev;
 578         struct delayed_work sbutton_query_work;
 579
 580         struct em28xx_dvb *dvb;
 581 };
 582
 583 struct em28xx_ops {
 584         struct list_head next;
 585         char *name;
 586         int id;
 587         int (*init)(struct em28xx *);
 588         int (*fini)(struct em28xx *);
 589 };
 590
 591 /* Provided by em28xx-i2c.c */
 592 void em28xx_do_i2c_scan(struct em28xx *dev);
 593 int  em28xx_i2c_register(struct em28xx *dev);
 594 int  em28xx_i2c_unregister(struct em28xx *dev);
 595
 596 /* Provided by em28xx-core.c */
 597
 598 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
 599 void em28xx_queue_unusedframes(struct em28xx *dev);
 600 void em28xx_release_buffers(struct em28xx *dev);
 601
 602 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 603                             char *buf, int len);
 604 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
 605 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 606 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 607                           int len);
 608 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 609 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 610
 611 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 612 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 613
 614 int em28xx_audio_analog_set(struct em28xx *dev);
 615 int em28xx_audio_setup(struct em28xx *dev);
 616
 617 int em28xx_colorlevels_set_default(struct em28xx *dev);
 618 int em28xx_capture_start(struct em28xx *dev, int start);
 619 int em28xx_set_outfmt(struct em28xx *dev);
 620 int em28xx_resolution_set(struct em28xx *dev);
 621 int em28xx_set_alternate(struct em28xx *dev);
 622 int em28xx_init_isoc(struct em28xx *dev, int max_packets,
 623                      int num_bufs, int max_pkt_size,
 624                      int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
 625 void em28xx_uninit_isoc(struct em28xx *dev);
 626 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
 627 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 628 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
 629 void em28xx_wake_i2c(struct em28xx *dev);
 630 void em28xx_remove_from_devlist(struct em28xx *dev);
 631 void em28xx_add_into_devlist(struct em28xx *dev);
 632 struct em28xx *em28xx_get_device(int minor,
 633                                  enum v4l2_buf_type *fh_type,
 634                                  int *has_radio);
 635 int em28xx_register_extension(struct em28xx_ops *dev);
 636 void em28xx_unregister_extension(struct em28xx_ops *dev);
 637 void em28xx_init_extension(struct em28xx *dev);
 638 void em28xx_close_extension(struct em28xx *dev);
 639
 640 /* Provided by em28xx-video.c */
 641 int em28xx_register_analog_devices(struct em28xx *dev);
 642 void em28xx_release_analog_resources(struct em28xx *dev);
 643
 644 /* Provided by em28xx-cards.c */
 645 extern int em2800_variant_detect(struct usb_device *udev, int model);
 646 extern void em28xx_pre_card_setup(struct em28xx *dev);
 647 extern void em28xx_card_setup(struct em28xx *dev);
 648 extern struct em28xx_board em28xx_boards[];
 649 extern struct usb_device_id em28xx_id_table[];
 650 extern const unsigned int em28xx_bcount;
 651 void em28xx_register_i2c_ir(struct em28xx *dev);
 652 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 653 void em28xx_release_resources(struct em28xx *dev);
 654
 655 /* Provided by em28xx-input.c */
 656 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 657 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 658 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
 659                                      u32 *ir_raw);
 660 void em28xx_register_snapshot_button(struct em28xx *dev);
 661 void em28xx_deregister_snapshot_button(struct em28xx *dev);
 662
 663 int em28xx_ir_init(struct em28xx *dev);
 664 int em28xx_ir_fini(struct em28xx *dev);
 665
 666 /* printk macros */
 667
 668 #define em28xx_err(fmt, arg...) do {\
 669         printk(KERN_ERR fmt , ##arg); } while (0)
 670
 671 #define em28xx_errdev(fmt, arg...) do {\
 672         printk(KERN_ERR "%s: "fmt,\
 673                         dev->name , ##arg); } while (0)
 674
 675 #define em28xx_info(fmt, arg...) do {\
 676         printk(KERN_INFO "%s: "fmt,\
 677                         dev->name , ##arg); } while (0)
 678 #define em28xx_warn(fmt, arg...) do {\
 679         printk(KERN_WARNING "%s: "fmt,\
 680                         dev->name , ##arg); } while (0)
 681
 682 static inline int em28xx_compression_disable(struct em28xx *dev)
 683 {
 684         /* side effect of disabling scaler and mixer */
 685         return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
 686 }
 687
 688 static inline int em28xx_contrast_get(struct em28xx *dev)
 689 {
 690         return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
 691 }
 692
 693 static inline int em28xx_brightness_get(struct em28xx *dev)
 694 {
 695         return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
 696 }
 697
 698 static inline int em28xx_saturation_get(struct em28xx *dev)
 699 {
 700         return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
 701 }
 702
 703 static inline int em28xx_u_balance_get(struct em28xx *dev)
 704 {
 705         return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
 706 }
 707
 708 static inline int em28xx_v_balance_get(struct em28xx *dev)
 709 {
 710         return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
 711 }
 712
 713 static inline int em28xx_gamma_get(struct em28xx *dev)
 714 {
 715         return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
 716 }
 717
 718 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
 719 {
 720         u8 tmp = (u8) val;
 721         return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
 722 }
 723
 724 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
 725 {
 726         u8 tmp = (u8) val;
 727         return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
 728 }
 729
 730 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
 731 {
 732         u8 tmp = (u8) val;
 733         return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
 734 }
 735
 736 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
 737 {
 738         u8 tmp = (u8) val;
 739         return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
 740 }
 741
 742 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
 743 {
 744         u8 tmp = (u8) val;
 745         return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
 746 }
 747
 748 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 749 {
 750         u8 tmp = (u8) val;
 751         return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
 752 }
 753
 754 /*FIXME: maxw should be dependent of alt mode */
 755 static inline unsigned int norm_maxw(struct em28xx *dev)
 756 {
 757         if (dev->board.max_range_640_480)
 758                 return 640;
 759         else
 760                 return 720;
 761 }
 762
 763 static inline unsigned int norm_maxh(struct em28xx *dev)
 764 {
 765         if (dev->board.max_range_640_480)
 766                 return 480;
 767         else
 768                 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 769 }
 770 #endif