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