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_POINTNIX_INTRAORAL_CAMERA  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
 109 /* Limits minimum and default number of buffers */
 110 #define EM28XX_MIN_BUF 4
 111 #define EM28XX_DEF_BUF 8
 112
 113 /*Limits the max URB message size */
 114 #define URB_MAX_CTRL_SIZE 80
 115
 116 /* Params for validated field */
 117 #define EM28XX_BOARD_NOT_VALIDATED 1
 118 #define EM28XX_BOARD_VALIDATED     0
 119
 120 /* Params for em28xx_cmd() audio */
 121 #define EM28XX_START_AUDIO      1
 122 #define EM28XX_STOP_AUDIO       0
 123
 124 /* maximum number of em28xx boards */
 125 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
 126
 127 /* maximum number of frames that can be queued */
 128 #define EM28XX_NUM_FRAMES 5
 129 /* number of frames that get used for v4l2_read() */
 130 #define EM28XX_NUM_READ_FRAMES 2
 131
 132 /* number of buffers for isoc transfers */
 133 #define EM28XX_NUM_BUFS 5
 134
 135 /* number of packets for each buffer
 136    windows requests only 40 packets .. so we better do the same
 137    this is what I found out for all alternate numbers there!
 138  */
 139 #define EM28XX_NUM_PACKETS 40
 140
 141 /* default alternate; 0 means choose the best */
 142 #define EM28XX_PINOUT 0
 143
 144 #define EM28XX_INTERLACED_DEFAULT 1
 145
 146 /*
 147 #define (use usbview if you want to get the other alternate number infos)
 148 #define
 149 #define alternate number 2
 150 #define                         Endpoint Address: 82
 151                         Direction: in
 152                         Attribute: 1
 153                         Type: Isoc
 154                         Max Packet Size: 1448
 155                         Interval: 125us
 156
 157   alternate number 7
 158
 159                         Endpoint Address: 82
 160                         Direction: in
 161                         Attribute: 1
 162                         Type: Isoc
 163                         Max Packet Size: 3072
 164                         Interval: 125us
 165 */
 166
 167 /* time to wait when stopping the isoc transfer */
 168 #define EM28XX_URB_TIMEOUT \
 169                         msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
 170
 171 /* time in msecs to wait for i2c writes to finish */
 172 #define EM2800_I2C_WRITE_TIMEOUT 20
 173
 174 enum em28xx_mode {
 175         EM28XX_SUSPEND,
 176         EM28XX_ANALOG_MODE,
 177         EM28XX_DIGITAL_MODE,
 178 };
 179
 180 enum em28xx_stream_state {
 181         STREAM_OFF,
 182         STREAM_INTERRUPT,
 183         STREAM_ON,
 184 };
 185
 186 struct em28xx;
 187
 188 struct em28xx_usb_isoc_ctl {
 189                 /* max packet size of isoc transaction */
 190         int                             max_pkt_size;
 191
 192                 /* number of allocated urbs */
 193         int                             num_bufs;
 194
 195                 /* urb for isoc transfers */
 196         struct urb                      **urb;
 197
 198                 /* transfer buffers for isoc transfer */
 199         char                            **transfer_buffer;
 200
 201                 /* Last buffer command and region */
 202         u8                              cmd;
 203         int                             pos, size, pktsize;
 204
 205                 /* Last field: ODD or EVEN? */
 206         int                             field;
 207
 208                 /* Stores incomplete commands */
 209         u32                             tmp_buf;
 210         int                             tmp_buf_len;
 211
 212                 /* Stores already requested buffers */
 213         struct em28xx_buffer            *buf;
 214
 215                 /* Stores the number of received fields */
 216         int                             nfields;
 217
 218                 /* isoc urb callback */
 219         int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
 220
 221 };
 222
 223 /* Struct to enumberate video formats */
 224 struct em28xx_fmt {
 225         char  *name;
 226         u32   fourcc;          /* v4l2 format id */
 227         int   depth;
 228         int   reg;
 229 };
 230
 231 /* buffer for one video frame */
 232 struct em28xx_buffer {
 233         /* common v4l buffer stuff -- must be first */
 234         struct videobuf_buffer vb;
 235
 236         struct list_head frame;
 237         int top_field;
 238         int receiving;
 239 };
 240
 241 struct em28xx_dmaqueue {
 242         struct list_head       active;
 243         struct list_head       queued;
 244
 245         wait_queue_head_t          wq;
 246
 247         /* Counters to control buffer fill */
 248         int                        pos;
 249 };
 250
 251 /* io methods */
 252 enum em28xx_io_method {
 253         IO_NONE,
 254         IO_READ,
 255         IO_MMAP,
 256 };
 257
 258 /* inputs */
 259
 260 #define MAX_EM28XX_INPUT 4
 261 enum enum28xx_itype {
 262         EM28XX_VMUX_COMPOSITE1 = 1,
 263         EM28XX_VMUX_COMPOSITE2,
 264         EM28XX_VMUX_COMPOSITE3,
 265         EM28XX_VMUX_COMPOSITE4,
 266         EM28XX_VMUX_SVIDEO,
 267         EM28XX_VMUX_TELEVISION,
 268         EM28XX_VMUX_CABLE,
 269         EM28XX_VMUX_DVB,
 270         EM28XX_VMUX_DEBUG,
 271         EM28XX_RADIO,
 272 };
 273
 274 enum em28xx_ac97_mode {
 275         EM28XX_NO_AC97 = 0,
 276         EM28XX_AC97_EM202,
 277         EM28XX_AC97_SIGMATEL,
 278         EM28XX_AC97_OTHER,
 279 };
 280
 281 struct em28xx_audio_mode {
 282         enum em28xx_ac97_mode ac97;
 283
 284         u16 ac97_feat;
 285         u32 ac97_vendor_id;
 286
 287         unsigned int has_audio:1;
 288
 289         unsigned int i2s_3rates:1;
 290         unsigned int i2s_5rates:1;
 291 };
 292
 293 /* em28xx has two audio inputs: tuner and line in.
 294    However, on most devices, an auxiliary AC97 codec device is used.
 295    The AC97 device may have several different inputs and outputs,
 296    depending on their model. So, it is possible to use AC97 mixer to
 297    address more than two different entries.
 298  */
 299 enum em28xx_amux {
 300         /* This is the only entry for em28xx tuner input */
 301         EM28XX_AMUX_VIDEO,      /* em28xx tuner, AC97 mixer Video */
 302
 303         EM28XX_AMUX_LINE_IN,    /* AC97 mixer Line In */
 304
 305         /* Some less-common mixer setups */
 306         EM28XX_AMUX_VIDEO2,     /* em28xx Line in, AC97 mixer Video */
 307         EM28XX_AMUX_PHONE,
 308         EM28XX_AMUX_MIC,
 309         EM28XX_AMUX_CD,
 310         EM28XX_AMUX_AUX,
 311         EM28XX_AMUX_PCM_OUT,
 312 };
 313
 314 enum em28xx_aout {
 315         /* AC97 outputs */
 316         EM28XX_AOUT_MASTER = 1 << 0,
 317         EM28XX_AOUT_LINE   = 1 << 1,
 318         EM28XX_AOUT_MONO   = 1 << 2,
 319         EM28XX_AOUT_LFE    = 1 << 3,
 320         EM28XX_AOUT_SURR   = 1 << 4,
 321
 322         /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
 323         EM28XX_AOUT_PCM_IN = 1 << 7,
 324
 325         /* Bits 10-8 are used to indicate the PCM IN record select */
 326         EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
 327         EM28XX_AOUT_PCM_CD      = 1 << 8,
 328         EM28XX_AOUT_PCM_VIDEO   = 2 << 8,
 329         EM28XX_AOUT_PCM_AUX     = 3 << 8,
 330         EM28XX_AOUT_PCM_LINE    = 4 << 8,
 331         EM28XX_AOUT_PCM_STEREO  = 5 << 8,
 332         EM28XX_AOUT_PCM_MONO    = 6 << 8,
 333         EM28XX_AOUT_PCM_PHONE   = 7 << 8,
 334 };
 335
 336 static inline int ac97_return_record_select(int a_out)
 337 {
 338         return (a_out & 0x700) >> 8;
 339 }
 340
 341 struct em28xx_reg_seq {
 342         int reg;
 343         unsigned char val, mask;
 344         int sleep;
 345 };
 346
 347 struct em28xx_input {
 348         enum enum28xx_itype type;
 349         unsigned int vmux;
 350         enum em28xx_amux amux;
 351         enum em28xx_aout aout;
 352         struct em28xx_reg_seq *gpio;
 353 };
 354
 355 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 356
 357 enum em28xx_decoder {
 358         EM28XX_NODECODER,
 359         EM28XX_TVP5150,
 360         EM28XX_SAA711X,
 361 };
 362
 363 enum em28xx_adecoder {
 364         EM28XX_NOADECODER = 0,
 365         EM28XX_TVAUDIO,
 366 };
 367
 368 struct em28xx_board {
 369         char *name;
 370         int vchannels;
 371         int tuner_type;
 372         int tuner_addr;
 373
 374         /* i2c flags */
 375         unsigned int tda9887_conf;
 376
 377         /* GPIO sequences */
 378         struct em28xx_reg_seq *dvb_gpio;
 379         struct em28xx_reg_seq *suspend_gpio;
 380         struct em28xx_reg_seq *tuner_gpio;
 381         struct em28xx_reg_seq *mute_gpio;
 382
 383         unsigned int is_em2800:1;
 384         unsigned int has_msp34xx:1;
 385         unsigned int mts_firmware:1;
 386         unsigned int max_range_640_480:1;
 387         unsigned int has_dvb:1;
 388         unsigned int has_snapshot_button:1;
 389         unsigned int valid:1;
 390
 391         unsigned char xclk, i2c_speed;
 392         unsigned char radio_addr;
 393         unsigned short tvaudio_addr;
 394
 395         enum em28xx_decoder decoder;
 396         enum em28xx_adecoder adecoder;
 397
 398         struct em28xx_input       input[MAX_EM28XX_INPUT];
 399         struct em28xx_input       radio;
 400         IR_KEYTAB_TYPE            *ir_codes;
 401 };
 402
 403 struct em28xx_eeprom {
 404         u32 id;                 /* 0x9567eb1a */
 405         u16 vendor_ID;
 406         u16 product_ID;
 407
 408         u16 chip_conf;
 409
 410         u16 board_conf;
 411
 412         u16 string1, string2, string3;
 413
 414         u8 string_idx_table;
 415 };
 416
 417 /* device states */
 418 enum em28xx_dev_state {
 419         DEV_INITIALIZED = 0x01,
 420         DEV_DISCONNECTED = 0x02,
 421         DEV_MISCONFIGURED = 0x04,
 422 };
 423
 424 #define EM28XX_AUDIO_BUFS 5
 425 #define EM28XX_NUM_AUDIO_PACKETS 64
 426 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
 427 #define EM28XX_CAPTURE_STREAM_EN 1
 428
 429 /* em28xx extensions */
 430 #define EM28XX_AUDIO   0x10
 431 #define EM28XX_DVB     0x20
 432
 433 struct em28xx_audio {
 434         char name[50];
 435         char *transfer_buffer[EM28XX_AUDIO_BUFS];
 436         struct urb *urb[EM28XX_AUDIO_BUFS];
 437         struct usb_device *udev;
 438         unsigned int capture_transfer_done;
 439         struct snd_pcm_substream   *capture_pcm_substream;
 440
 441         unsigned int hwptr_done_capture;
 442         struct snd_card            *sndcard;
 443
 444         int users;
 445         enum em28xx_stream_state capture_stream;
 446         spinlock_t slock;
 447 };
 448
 449 struct em28xx;
 450
 451 struct em28xx_fh {
 452         struct em28xx *dev;
 453         unsigned int  stream_on:1;      /* Locks streams */
 454         int           radio;
 455
 456         struct videobuf_queue        vb_vidq;
 457
 458         enum v4l2_buf_type           type;
 459 };
 460
 461 /* main device struct */
 462 struct em28xx {
 463         /* generic device properties */
 464         char name[30];          /* name (including minor) of the device */
 465         int model;              /* index in the device_data struct */
 466         int devno;              /* marks the number of this device */
 467         enum em28xx_chip_id chip_id;
 468
 469         struct v4l2_device v4l2_dev;
 470         struct em28xx_board board;
 471
 472         unsigned int stream_on:1;       /* Locks streams */
 473         unsigned int has_audio_class:1;
 474         unsigned int has_alsa_audio:1;
 475
 476         struct em28xx_fmt *format;
 477
 478         struct em28xx_IR *ir;
 479
 480         /* Some older em28xx chips needs a waiting time after writing */
 481         unsigned int wait_after_write;
 482
 483         struct list_head        devlist;
 484
 485         u32 i2s_speed;          /* I2S speed for audio digital stream */
 486
 487         struct em28xx_audio_mode audio_mode;
 488
 489         int tuner_type;         /* type of the tuner */
 490         int tuner_addr;         /* tuner address */
 491         int tda9887_conf;
 492         /* i2c i/o */
 493         struct i2c_adapter i2c_adap;
 494         struct i2c_client i2c_client;
 495         /* video for linux */
 496         int users;              /* user count for exclusive use */
 497         struct video_device *vdev;      /* video for linux device struct */
 498         v4l2_std_id norm;       /* selected tv norm */
 499         int ctl_freq;           /* selected frequency */
 500         unsigned int ctl_input; /* selected input */
 501         unsigned int ctl_ainput;/* selected audio input */
 502         unsigned int ctl_aoutput;/* selected audio output */
 503         int mute;
 504         int volume;
 505         /* frame properties */
 506         int width;              /* current frame width */
 507         int height;             /* current frame height */
 508         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 509         unsigned vscale;        /* vertical scale factor (see datasheet) */
 510         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 511         unsigned int video_bytesread;   /* Number of bytes read */
 512
 513         unsigned long hash;     /* eeprom hash - for boards with generic ID */
 514         unsigned long i2c_hash; /* i2c devicelist hash -
 515                                    for boards with generic ID */
 516
 517         struct em28xx_audio adev;
 518
 519         /* states */
 520         enum em28xx_dev_state state;
 521         enum em28xx_io_method io;
 522
 523         struct work_struct         request_module_wk;
 524
 525         /* locks */
 526         struct mutex lock;
 527         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 528         /* spinlock_t queue_lock; */
 529         struct list_head inqueue, outqueue;
 530         wait_queue_head_t open, wait_frame, wait_stream;
 531         struct video_device *vbi_dev;
 532         struct video_device *radio_dev;
 533
 534         unsigned char eedata[256];
 535
 536         /* Isoc control struct */
 537         struct em28xx_dmaqueue vidq;
 538         struct em28xx_usb_isoc_ctl isoc_ctl;
 539         spinlock_t slock;
 540
 541         /* usb transfer */
 542         struct usb_device *udev;        /* the usb device */
 543         int alt;                /* alternate */
 544         int max_pkt_size;       /* max packet size of isoc transaction */
 545         int num_alt;            /* Number of alternative settings */
 546         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 547         struct urb *urb[EM28XX_NUM_BUFS];       /* urb for isoc transfers */
 548         char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc
 549                                                    transfer */
 550         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 551
 552         /* helper funcs that call usb_control_msg */
 553         int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
 554                                         char *buf, int len);
 555         int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
 556         int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
 557                                         char *buf, int len);
 558         int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
 559                                       char *buf, int len);
 560         int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
 561
 562         enum em28xx_mode mode;
 563
 564         /* register numbers for GPO/GPIO registers */
 565         u16 reg_gpo_num, reg_gpio_num;
 566
 567         /* Caches GPO and GPIO registers */
 568         unsigned char   reg_gpo, reg_gpio;
 569
 570         /* Snapshot button */
 571         char snapshot_button_path[30];  /* path of the input dev */
 572         struct input_dev *sbutton_input_dev;
 573         struct delayed_work sbutton_query_work;
 574
 575         struct em28xx_dvb *dvb;
 576 };
 577
 578 struct em28xx_ops {
 579         struct list_head next;
 580         char *name;
 581         int id;
 582         int (*init)(struct em28xx *);
 583         int (*fini)(struct em28xx *);
 584 };
 585
 586 /* Provided by em28xx-i2c.c */
 587 void em28xx_do_i2c_scan(struct em28xx *dev);
 588 int  em28xx_i2c_register(struct em28xx *dev);
 589 int  em28xx_i2c_unregister(struct em28xx *dev);
 590
 591 /* Provided by em28xx-core.c */
 592
 593 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
 594 void em28xx_queue_unusedframes(struct em28xx *dev);
 595 void em28xx_release_buffers(struct em28xx *dev);
 596
 597 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 598                             char *buf, int len);
 599 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
 600 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 601 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 602                           int len);
 603 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 604 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 605
 606 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 607 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 608
 609 int em28xx_audio_analog_set(struct em28xx *dev);
 610 int em28xx_audio_setup(struct em28xx *dev);
 611
 612 int em28xx_colorlevels_set_default(struct em28xx *dev);
 613 int em28xx_capture_start(struct em28xx *dev, int start);
 614 int em28xx_set_outfmt(struct em28xx *dev);
 615 int em28xx_resolution_set(struct em28xx *dev);
 616 int em28xx_set_alternate(struct em28xx *dev);
 617 int em28xx_init_isoc(struct em28xx *dev, int max_packets,
 618                      int num_bufs, int max_pkt_size,
 619                      int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
 620 void em28xx_uninit_isoc(struct em28xx *dev);
 621 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
 622 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 623 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
 624 void em28xx_wake_i2c(struct em28xx *dev);
 625 void em28xx_remove_from_devlist(struct em28xx *dev);
 626 void em28xx_add_into_devlist(struct em28xx *dev);
 627 struct em28xx *em28xx_get_device(int minor,
 628                                  enum v4l2_buf_type *fh_type,
 629                                  int *has_radio);
 630 int em28xx_register_extension(struct em28xx_ops *dev);
 631 void em28xx_unregister_extension(struct em28xx_ops *dev);
 632 void em28xx_init_extension(struct em28xx *dev);
 633 void em28xx_close_extension(struct em28xx *dev);
 634
 635 /* Provided by em28xx-video.c */
 636 int em28xx_register_analog_devices(struct em28xx *dev);
 637 void em28xx_release_analog_resources(struct em28xx *dev);
 638
 639 /* Provided by em28xx-cards.c */
 640 extern int em2800_variant_detect(struct usb_device *udev, int model);
 641 extern void em28xx_pre_card_setup(struct em28xx *dev);
 642 extern void em28xx_card_setup(struct em28xx *dev);
 643 extern struct em28xx_board em28xx_boards[];
 644 extern struct usb_device_id em28xx_id_table[];
 645 extern const unsigned int em28xx_bcount;
 646 void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir);
 647 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 648 void em28xx_release_resources(struct em28xx *dev);
 649
 650 /* Provided by em28xx-input.c */
 651 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 652 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 653 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
 654                                      u32 *ir_raw);
 655 void em28xx_register_snapshot_button(struct em28xx *dev);
 656 void em28xx_deregister_snapshot_button(struct em28xx *dev);
 657
 658 int em28xx_ir_init(struct em28xx *dev);
 659 int em28xx_ir_fini(struct em28xx *dev);
 660
 661 /* printk macros */
 662
 663 #define em28xx_err(fmt, arg...) do {\
 664         printk(KERN_ERR fmt , ##arg); } while (0)
 665
 666 #define em28xx_errdev(fmt, arg...) do {\
 667         printk(KERN_ERR "%s: "fmt,\
 668                         dev->name , ##arg); } while (0)
 669
 670 #define em28xx_info(fmt, arg...) do {\
 671         printk(KERN_INFO "%s: "fmt,\
 672                         dev->name , ##arg); } while (0)
 673 #define em28xx_warn(fmt, arg...) do {\
 674         printk(KERN_WARNING "%s: "fmt,\
 675                         dev->name , ##arg); } while (0)
 676
 677 static inline int em28xx_compression_disable(struct em28xx *dev)
 678 {
 679         /* side effect of disabling scaler and mixer */
 680         return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
 681 }
 682
 683 static inline int em28xx_contrast_get(struct em28xx *dev)
 684 {
 685         return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
 686 }
 687
 688 static inline int em28xx_brightness_get(struct em28xx *dev)
 689 {
 690         return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
 691 }
 692
 693 static inline int em28xx_saturation_get(struct em28xx *dev)
 694 {
 695         return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
 696 }
 697
 698 static inline int em28xx_u_balance_get(struct em28xx *dev)
 699 {
 700         return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
 701 }
 702
 703 static inline int em28xx_v_balance_get(struct em28xx *dev)
 704 {
 705         return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
 706 }
 707
 708 static inline int em28xx_gamma_get(struct em28xx *dev)
 709 {
 710         return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
 711 }
 712
 713 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
 714 {
 715         u8 tmp = (u8) val;
 716         return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
 717 }
 718
 719 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
 720 {
 721         u8 tmp = (u8) val;
 722         return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
 723 }
 724
 725 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
 726 {
 727         u8 tmp = (u8) val;
 728         return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
 729 }
 730
 731 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
 732 {
 733         u8 tmp = (u8) val;
 734         return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
 735 }
 736
 737 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
 738 {
 739         u8 tmp = (u8) val;
 740         return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
 741 }
 742
 743 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 744 {
 745         u8 tmp = (u8) val;
 746         return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
 747 }
 748
 749 /*FIXME: maxw should be dependent of alt mode */
 750 static inline unsigned int norm_maxw(struct em28xx *dev)
 751 {
 752         if (dev->board.max_range_640_480)
 753                 return 640;
 754         else
 755                 return 720;
 756 }
 757
 758 static inline unsigned int norm_maxh(struct em28xx *dev)
 759 {
 760         if (dev->board.max_range_640_480)
 761                 return 480;
 762         else
 763                 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 764 }
 765 #endif