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
  31 #include <linux/i2c.h>
  32 #include <linux/mutex.h>
  33 #include <media/ir-kbd-i2c.h>
  34 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
  35 #include <media/videobuf-dvb.h>
  36 #endif
  37 #include "tuner-xc2028.h"
  38 #include "em28xx-reg.h"
  39
  40 /* Boards supported by driver */
  41 #define EM2800_BOARD_UNKNOWN                    0
  42 #define EM2820_BOARD_UNKNOWN                    1
  43 #define EM2820_BOARD_TERRATEC_CINERGY_250       2
  44 #define EM2820_BOARD_PINNACLE_USB_2             3
  45 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2      4
  46 #define EM2820_BOARD_MSI_VOX_USB_2              5
  47 #define EM2800_BOARD_TERRATEC_CINERGY_200       6
  48 #define EM2800_BOARD_LEADTEK_WINFAST_USBII      7
  49 #define EM2800_BOARD_KWORLD_USB2800             8
  50 #define EM2820_BOARD_PINNACLE_DVC_90            9
  51 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900    10
  52 #define EM2880_BOARD_TERRATEC_HYBRID_XS         11
  53 #define EM2820_BOARD_KWORLD_PVRTV2800RF         12
  54 #define EM2880_BOARD_TERRATEC_PRODIGY_XS        13
  55 #define EM2820_BOARD_PROLINK_PLAYTV_USB2        14
  56 #define EM2800_BOARD_VGEAR_POCKETTV             15
  57 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950    16
  58 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO       17
  59 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
  60 #define EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA  19
  61 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600   20
  62 #define EM2800_BOARD_GRABBEEX_USB2800           21
  63 #define EM2750_BOARD_UNKNOWN                      22
  64 #define EM2750_BOARD_DLCW_130                     23
  65 #define EM2820_BOARD_DLINK_USB_TV                 24
  66 #define EM2820_BOARD_GADMEI_UTV310                25
  67 #define EM2820_BOARD_HERCULES_SMART_TV_USB2       26
  68 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME      27
  69 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
  70 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB          30
  71 #define EM2821_BOARD_USBGEAR_VD204                31
  72 #define EM2821_BOARD_SUPERCOMP_USB_2              32
  73 #define EM2821_BOARD_PROLINK_PLAYTV_USB2          33
  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_A316           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
 102 /* Limits minimum and default number of buffers */
 103 #define EM28XX_MIN_BUF 4
 104 #define EM28XX_DEF_BUF 8
 105
 106 /*Limits the max URB message size */
 107 #define URB_MAX_CTRL_SIZE 80
 108
 109 /* Params for validated field */
 110 #define EM28XX_BOARD_NOT_VALIDATED 1
 111 #define EM28XX_BOARD_VALIDATED     0
 112
 113 /* maximum number of em28xx boards */
 114 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
 115
 116 /* maximum number of frames that can be queued */
 117 #define EM28XX_NUM_FRAMES 5
 118 /* number of frames that get used for v4l2_read() */
 119 #define EM28XX_NUM_READ_FRAMES 2
 120
 121 /* number of buffers for isoc transfers */
 122 #define EM28XX_NUM_BUFS 5
 123
 124 /* number of packets for each buffer
 125    windows requests only 40 packets .. so we better do the same
 126    this is what I found out for all alternate numbers there!
 127  */
 128 #define EM28XX_NUM_PACKETS 40
 129
 130 /* default alternate; 0 means choose the best */
 131 #define EM28XX_PINOUT 0
 132
 133 #define EM28XX_INTERLACED_DEFAULT 1
 134
 135 /*
 136 #define (use usbview if you want to get the other alternate number infos)
 137 #define
 138 #define alternate number 2
 139 #define                         Endpoint Address: 82
 140                         Direction: in
 141                         Attribute: 1
 142                         Type: Isoc
 143                         Max Packet Size: 1448
 144                         Interval: 125us
 145
 146   alternate number 7
 147
 148                         Endpoint Address: 82
 149                         Direction: in
 150                         Attribute: 1
 151                         Type: Isoc
 152                         Max Packet Size: 3072
 153                         Interval: 125us
 154 */
 155
 156 /* time to wait when stopping the isoc transfer */
 157 #define EM28XX_URB_TIMEOUT       msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
 158
 159 /* time in msecs to wait for i2c writes to finish */
 160 #define EM2800_I2C_WRITE_TIMEOUT 20
 161
 162 enum em28xx_mode {
 163         EM28XX_SUSPEND,
 164         EM28XX_ANALOG_MODE,
 165         EM28XX_DIGITAL_MODE,
 166 };
 167
 168 enum em28xx_stream_state {
 169         STREAM_OFF,
 170         STREAM_INTERRUPT,
 171         STREAM_ON,
 172 };
 173
 174 struct em28xx;
 175
 176 struct em28xx_usb_isoc_ctl {
 177                 /* max packet size of isoc transaction */
 178         int                             max_pkt_size;
 179
 180                 /* number of allocated urbs */
 181         int                             num_bufs;
 182
 183                 /* urb for isoc transfers */
 184         struct urb                      **urb;
 185
 186                 /* transfer buffers for isoc transfer */
 187         char                            **transfer_buffer;
 188
 189                 /* Last buffer command and region */
 190         u8                              cmd;
 191         int                             pos, size, pktsize;
 192
 193                 /* Last field: ODD or EVEN? */
 194         int                             field;
 195
 196                 /* Stores incomplete commands */
 197         u32                             tmp_buf;
 198         int                             tmp_buf_len;
 199
 200                 /* Stores already requested buffers */
 201         struct em28xx_buffer            *buf;
 202
 203                 /* Stores the number of received fields */
 204         int                             nfields;
 205
 206                 /* isoc urb callback */
 207         int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
 208
 209 };
 210
 211 /* Struct to enumberate video formats */
 212 struct em28xx_fmt {
 213         char  *name;
 214         u32   fourcc;          /* v4l2 format id */
 215         int   depth;
 216         int   reg;
 217 };
 218
 219 /* buffer for one video frame */
 220 struct em28xx_buffer {
 221         /* common v4l buffer stuff -- must be first */
 222         struct videobuf_buffer vb;
 223
 224         struct list_head frame;
 225         int top_field;
 226         int receiving;
 227 };
 228
 229 struct em28xx_dmaqueue {
 230         struct list_head       active;
 231         struct list_head       queued;
 232
 233         wait_queue_head_t          wq;
 234
 235         /* Counters to control buffer fill */
 236         int                        pos;
 237 };
 238
 239 /* io methods */
 240 enum em28xx_io_method {
 241         IO_NONE,
 242         IO_READ,
 243         IO_MMAP,
 244 };
 245
 246 /* inputs */
 247
 248 #define MAX_EM28XX_INPUT 4
 249 enum enum28xx_itype {
 250         EM28XX_VMUX_COMPOSITE1 = 1,
 251         EM28XX_VMUX_COMPOSITE2,
 252         EM28XX_VMUX_COMPOSITE3,
 253         EM28XX_VMUX_COMPOSITE4,
 254         EM28XX_VMUX_SVIDEO,
 255         EM28XX_VMUX_TELEVISION,
 256         EM28XX_VMUX_CABLE,
 257         EM28XX_VMUX_DVB,
 258         EM28XX_VMUX_DEBUG,
 259         EM28XX_RADIO,
 260 };
 261
 262 enum em28xx_ac97_mode {
 263         EM28XX_NO_AC97 = 0,
 264         EM28XX_AC97_EM202,
 265         EM28XX_AC97_SIGMATEL,
 266         EM28XX_AC97_OTHER,
 267 };
 268
 269 struct em28xx_audio_mode {
 270         enum em28xx_ac97_mode ac97;
 271
 272         u16 ac97_feat;
 273         u32 ac97_vendor_id;
 274
 275         unsigned int has_audio:1;
 276
 277         unsigned int i2s_3rates:1;
 278         unsigned int i2s_5rates:1;
 279 };
 280
 281 /* em28xx has two audio inputs: tuner and line in.
 282    However, on most devices, an auxiliary AC97 codec device is used.
 283    The AC97 device may have several different inputs and outputs,
 284    depending on their model. So, it is possible to use AC97 mixer to
 285    address more than two different entries.
 286  */
 287 enum em28xx_amux {
 288         /* This is the only entry for em28xx tuner input */
 289         EM28XX_AMUX_VIDEO,      /* em28xx tuner, AC97 mixer Video */
 290
 291         EM28XX_AMUX_LINE_IN,    /* AC97 mixer Line In */
 292
 293         /* Some less-common mixer setups */
 294         EM28XX_AMUX_VIDEO2,     /* em28xx Line in, AC97 mixer Video */
 295         EM28XX_AMUX_PHONE,
 296         EM28XX_AMUX_MIC,
 297         EM28XX_AMUX_CD,
 298         EM28XX_AMUX_AUX,
 299         EM28XX_AMUX_PCM_OUT,
 300 };
 301
 302 enum em28xx_aout {
 303         EM28XX_AOUT_MASTER = 1 << 0,
 304         EM28XX_AOUT_LINE   = 1 << 1,
 305         EM28XX_AOUT_MONO   = 1 << 2,
 306         EM28XX_AOUT_LFE    = 1 << 3,
 307         EM28XX_AOUT_SURR   = 1 << 4,
 308 };
 309
 310 struct em28xx_reg_seq {
 311         int reg;
 312         unsigned char val, mask;
 313         int sleep;
 314 };
 315
 316 struct em28xx_input {
 317         enum enum28xx_itype type;
 318         unsigned int vmux;
 319         enum em28xx_amux amux;
 320         enum em28xx_aout aout;
 321         struct em28xx_reg_seq *gpio;
 322 };
 323
 324 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 325
 326 enum em28xx_decoder {
 327         EM28XX_NODECODER,
 328         EM28XX_TVP5150,
 329         EM28XX_SAA711X,
 330 };
 331
 332 struct em28xx_board {
 333         char *name;
 334         int vchannels;
 335         int tuner_type;
 336         int tuner_addr;
 337
 338         /* i2c flags */
 339         unsigned int tda9887_conf;
 340
 341         /* GPIO sequences */
 342         struct em28xx_reg_seq *dvb_gpio;
 343         struct em28xx_reg_seq *suspend_gpio;
 344         struct em28xx_reg_seq *tuner_gpio;
 345
 346         unsigned int is_em2800:1;
 347         unsigned int has_msp34xx:1;
 348         unsigned int mts_firmware:1;
 349         unsigned int max_range_640_480:1;
 350         unsigned int has_dvb:1;
 351         unsigned int has_snapshot_button:1;
 352         unsigned int valid:1;
 353
 354         unsigned char xclk, i2c_speed;
 355
 356         enum em28xx_decoder decoder;
 357
 358         struct em28xx_input       input[MAX_EM28XX_INPUT];
 359         struct em28xx_input       radio;
 360         IR_KEYTAB_TYPE            *ir_codes;
 361 };
 362
 363 struct em28xx_eeprom {
 364         u32 id;                 /* 0x9567eb1a */
 365         u16 vendor_ID;
 366         u16 product_ID;
 367
 368         u16 chip_conf;
 369
 370         u16 board_conf;
 371
 372         u16 string1, string2, string3;
 373
 374         u8 string_idx_table;
 375 };
 376
 377 /* device states */
 378 enum em28xx_dev_state {
 379         DEV_INITIALIZED = 0x01,
 380         DEV_DISCONNECTED = 0x02,
 381         DEV_MISCONFIGURED = 0x04,
 382 };
 383
 384 #define EM28XX_AUDIO_BUFS 5
 385 #define EM28XX_NUM_AUDIO_PACKETS 64
 386 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
 387 #define EM28XX_CAPTURE_STREAM_EN 1
 388
 389 /* em28xx extensions */
 390 #define EM28XX_AUDIO   0x10
 391 #define EM28XX_DVB     0x20
 392
 393 struct em28xx_audio {
 394         char name[50];
 395         char *transfer_buffer[EM28XX_AUDIO_BUFS];
 396         struct urb *urb[EM28XX_AUDIO_BUFS];
 397         struct usb_device *udev;
 398         unsigned int capture_transfer_done;
 399         struct snd_pcm_substream   *capture_pcm_substream;
 400
 401         unsigned int hwptr_done_capture;
 402         struct snd_card            *sndcard;
 403
 404         int users, shutdown;
 405         enum em28xx_stream_state capture_stream;
 406         spinlock_t slock;
 407 };
 408
 409 struct em28xx;
 410
 411 struct em28xx_fh {
 412         struct em28xx *dev;
 413         unsigned int  stream_on:1;      /* Locks streams */
 414         int           radio;
 415
 416         struct videobuf_queue        vb_vidq;
 417
 418         enum v4l2_buf_type           type;
 419 };
 420
 421 /* main device struct */
 422 struct em28xx {
 423         /* generic device properties */
 424         char name[30];          /* name (including minor) of the device */
 425         int model;              /* index in the device_data struct */
 426         int devno;              /* marks the number of this device */
 427         enum em28xx_chip_id chip_id;
 428
 429         struct em28xx_board board;
 430
 431         unsigned int stream_on:1;       /* Locks streams */
 432         unsigned int has_audio_class:1;
 433         unsigned int has_alsa_audio:1;
 434
 435         struct em28xx_fmt *format;
 436
 437         struct em28xx_IR *ir;
 438
 439         /* Some older em28xx chips needs a waiting time after writing */
 440         unsigned int wait_after_write;
 441
 442         struct list_head        devlist;
 443
 444         u32 i2s_speed;          /* I2S speed for audio digital stream */
 445
 446         struct em28xx_audio_mode audio_mode;
 447
 448         int tuner_type;         /* type of the tuner */
 449         int tuner_addr;         /* tuner address */
 450         int tda9887_conf;
 451         /* i2c i/o */
 452         struct i2c_adapter i2c_adap;
 453         struct i2c_client i2c_client;
 454         /* video for linux */
 455         int users;              /* user count for exclusive use */
 456         struct video_device *vdev;      /* video for linux device struct */
 457         v4l2_std_id norm;       /* selected tv norm */
 458         int ctl_freq;           /* selected frequency */
 459         unsigned int ctl_input; /* selected input */
 460         unsigned int ctl_ainput;/* selected audio input */
 461         unsigned int ctl_aoutput;/* selected audio output */
 462         int mute;
 463         int volume;
 464         /* frame properties */
 465         int width;              /* current frame width */
 466         int height;             /* current frame height */
 467         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 468         unsigned vscale;        /* vertical scale factor (see datasheet) */
 469         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 470         unsigned int video_bytesread;   /* Number of bytes read */
 471
 472         unsigned long hash;     /* eeprom hash - for boards with generic ID */
 473         unsigned long i2c_hash; /* i2c devicelist hash -
 474                                    for boards with generic ID */
 475
 476         struct em28xx_audio *adev;
 477
 478         /* states */
 479         enum em28xx_dev_state state;
 480         enum em28xx_io_method io;
 481
 482         struct work_struct         request_module_wk;
 483
 484         /* locks */
 485         struct mutex lock;
 486         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 487         /* spinlock_t queue_lock; */
 488         struct list_head inqueue, outqueue;
 489         wait_queue_head_t open, wait_frame, wait_stream;
 490         struct video_device *vbi_dev;
 491         struct video_device *radio_dev;
 492
 493         unsigned char eedata[256];
 494
 495         /* Isoc control struct */
 496         struct em28xx_dmaqueue vidq;
 497         struct em28xx_usb_isoc_ctl isoc_ctl;
 498         spinlock_t slock;
 499
 500         /* usb transfer */
 501         struct usb_device *udev;        /* the usb device */
 502         int alt;                /* alternate */
 503         int max_pkt_size;       /* max packet size of isoc transaction */
 504         int num_alt;            /* Number of alternative settings */
 505         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 506         struct urb *urb[EM28XX_NUM_BUFS];       /* urb for isoc transfers */
 507         char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */
 508         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 509
 510         /* helper funcs that call usb_control_msg */
 511         int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
 512                                         char *buf, int len);
 513         int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
 514         int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
 515                                         char *buf, int len);
 516         int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
 517                                       char *buf, int len);
 518         int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
 519
 520         enum em28xx_mode mode;
 521
 522         /* register numbers for GPO/GPIO registers */
 523         u16 reg_gpo_num, reg_gpio_num;
 524
 525         /* Caches GPO and GPIO registers */
 526         unsigned char   reg_gpo, reg_gpio;
 527
 528         /* Snapshot button */
 529         char snapshot_button_path[30];  /* path of the input dev */
 530         struct input_dev *sbutton_input_dev;
 531         struct delayed_work sbutton_query_work;
 532
 533         struct em28xx_dvb *dvb;
 534 };
 535
 536 struct em28xx_ops {
 537         struct list_head next;
 538         char *name;
 539         int id;
 540         int (*init)(struct em28xx *);
 541         int (*fini)(struct em28xx *);
 542 };
 543
 544 /* Provided by em28xx-i2c.c */
 545
 546 void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg);
 547 void em28xx_do_i2c_scan(struct em28xx *dev);
 548 int em28xx_i2c_register(struct em28xx *dev);
 549 int em28xx_i2c_unregister(struct em28xx *dev);
 550
 551 /* Provided by em28xx-core.c */
 552
 553 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
 554 void em28xx_queue_unusedframes(struct em28xx *dev);
 555 void em28xx_release_buffers(struct em28xx *dev);
 556
 557 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 558                             char *buf, int len);
 559 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
 560 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 561 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 562                           int len);
 563 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 564 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 565
 566 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 567 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 568
 569 int em28xx_audio_analog_set(struct em28xx *dev);
 570 int em28xx_audio_setup(struct em28xx *dev);
 571
 572 int em28xx_colorlevels_set_default(struct em28xx *dev);
 573 int em28xx_capture_start(struct em28xx *dev, int start);
 574 int em28xx_set_outfmt(struct em28xx *dev);
 575 int em28xx_resolution_set(struct em28xx *dev);
 576 int em28xx_set_alternate(struct em28xx *dev);
 577 int em28xx_init_isoc(struct em28xx *dev, int max_packets,
 578                      int num_bufs, int max_pkt_size,
 579                      int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
 580 void em28xx_uninit_isoc(struct em28xx *dev);
 581 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 582 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
 583 void em28xx_wake_i2c(struct em28xx *dev);
 584 void em28xx_remove_from_devlist(struct em28xx *dev);
 585 void em28xx_add_into_devlist(struct em28xx *dev);
 586 struct em28xx *em28xx_get_device(int minor,
 587                                  enum v4l2_buf_type *fh_type,
 588                                  int *has_radio);
 589 int em28xx_register_extension(struct em28xx_ops *dev);
 590 void em28xx_unregister_extension(struct em28xx_ops *dev);
 591 void em28xx_init_extension(struct em28xx *dev);
 592 void em28xx_close_extension(struct em28xx *dev);
 593
 594 /* Provided by em28xx-video.c */
 595 int em28xx_register_analog_devices(struct em28xx *dev);
 596 void em28xx_release_analog_resources(struct em28xx *dev);
 597
 598 /* Provided by em28xx-cards.c */
 599 extern int em2800_variant_detect(struct usb_device *udev, int model);
 600 extern void em28xx_pre_card_setup(struct em28xx *dev);
 601 extern void em28xx_card_setup(struct em28xx *dev);
 602 extern struct em28xx_board em28xx_boards[];
 603 extern struct usb_device_id em28xx_id_table[];
 604 extern const unsigned int em28xx_bcount;
 605 void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir);
 606 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 607 void em28xx_release_resources(struct em28xx *dev);
 608
 609 /* Provided by em28xx-input.c */
 610 int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 611 int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw);
 612 int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key,
 613                                      u32 *ir_raw);
 614 void em28xx_register_snapshot_button(struct em28xx *dev);
 615 void em28xx_deregister_snapshot_button(struct em28xx *dev);
 616
 617 int em28xx_ir_init(struct em28xx *dev);
 618 int em28xx_ir_fini(struct em28xx *dev);
 619
 620 /* printk macros */
 621
 622 #define em28xx_err(fmt, arg...) do {\
 623         printk(KERN_ERR fmt , ##arg); } while (0)
 624
 625 #define em28xx_errdev(fmt, arg...) do {\
 626         printk(KERN_ERR "%s: "fmt,\
 627                         dev->name , ##arg); } while (0)
 628
 629 #define em28xx_info(fmt, arg...) do {\
 630         printk(KERN_INFO "%s: "fmt,\
 631                         dev->name , ##arg); } while (0)
 632 #define em28xx_warn(fmt, arg...) do {\
 633         printk(KERN_WARNING "%s: "fmt,\
 634                         dev->name , ##arg); } while (0)
 635
 636 static inline int em28xx_compression_disable(struct em28xx *dev)
 637 {
 638         /* side effect of disabling scaler and mixer */
 639         return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
 640 }
 641
 642 static inline int em28xx_contrast_get(struct em28xx *dev)
 643 {
 644         return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
 645 }
 646
 647 static inline int em28xx_brightness_get(struct em28xx *dev)
 648 {
 649         return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
 650 }
 651
 652 static inline int em28xx_saturation_get(struct em28xx *dev)
 653 {
 654         return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
 655 }
 656
 657 static inline int em28xx_u_balance_get(struct em28xx *dev)
 658 {
 659         return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
 660 }
 661
 662 static inline int em28xx_v_balance_get(struct em28xx *dev)
 663 {
 664         return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
 665 }
 666
 667 static inline int em28xx_gamma_get(struct em28xx *dev)
 668 {
 669         return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
 670 }
 671
 672 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
 673 {
 674         u8 tmp = (u8) val;
 675         return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
 676 }
 677
 678 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
 679 {
 680         u8 tmp = (u8) val;
 681         return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
 682 }
 683
 684 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
 685 {
 686         u8 tmp = (u8) val;
 687         return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
 688 }
 689
 690 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
 691 {
 692         u8 tmp = (u8) val;
 693         return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
 694 }
 695
 696 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
 697 {
 698         u8 tmp = (u8) val;
 699         return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
 700 }
 701
 702 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 703 {
 704         u8 tmp = (u8) val;
 705         return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
 706 }
 707
 708 /*FIXME: maxw should be dependent of alt mode */
 709 static inline unsigned int norm_maxw(struct em28xx *dev)
 710 {
 711         if (dev->board.max_range_640_480)
 712                 return 640;
 713         else
 714                 return 720;
 715 }
 716
 717 static inline unsigned int norm_maxh(struct em28xx *dev)
 718 {
 719         if (dev->board.max_range_640_480)
 720                 return 480;
 721         else
 722                 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 723 }
 724 #endif