drivers/media/usb/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    Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
   8
   9    Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25
  26 #ifndef _EM28XX_H
  27 #define _EM28XX_H
  28
  29 #include <linux/workqueue.h>
  30 #include <linux/i2c.h>
  31 #include <linux/mutex.h>
  32 #include <linux/videodev2.h>
  33
  34 #include <media/videobuf-vmalloc.h>
  35 #include <media/v4l2-device.h>
  36 #include <media/ir-kbd-i2c.h>
  37 #include <media/rc-core.h>
  38 #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
  39 #include <media/videobuf-dvb.h>
  40 #endif
  41 #include "tuner-xc2028.h"
  42 #include "xc5000.h"
  43 #include "em28xx-reg.h"
  44
  45 /* Boards supported by driver */
  46 #define EM2800_BOARD_UNKNOWN                    0
  47 #define EM2820_BOARD_UNKNOWN                    1
  48 #define EM2820_BOARD_TERRATEC_CINERGY_250       2
  49 #define EM2820_BOARD_PINNACLE_USB_2             3
  50 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2      4
  51 #define EM2820_BOARD_MSI_VOX_USB_2              5
  52 #define EM2800_BOARD_TERRATEC_CINERGY_200       6
  53 #define EM2800_BOARD_LEADTEK_WINFAST_USBII      7
  54 #define EM2800_BOARD_KWORLD_USB2800             8
  55 #define EM2820_BOARD_PINNACLE_DVC_90            9
  56 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900    10
  57 #define EM2880_BOARD_TERRATEC_HYBRID_XS         11
  58 #define EM2820_BOARD_KWORLD_PVRTV2800RF         12
  59 #define EM2880_BOARD_TERRATEC_PRODIGY_XS        13
  60 #define EM2820_BOARD_PROLINK_PLAYTV_USB2        14
  61 #define EM2800_BOARD_VGEAR_POCKETTV             15
  62 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950    16
  63 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO       17
  64 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18
  65 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN   19
  66 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600   20
  67 #define EM2800_BOARD_GRABBEEX_USB2800           21
  68 #define EM2750_BOARD_UNKNOWN                      22
  69 #define EM2750_BOARD_DLCW_130                     23
  70 #define EM2820_BOARD_DLINK_USB_TV                 24
  71 #define EM2820_BOARD_GADMEI_UTV310                25
  72 #define EM2820_BOARD_HERCULES_SMART_TV_USB2       26
  73 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME      27
  74 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
  75 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN     29
  76 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB          30
  77 #define EM2821_BOARD_USBGEAR_VD204                31
  78 #define EM2821_BOARD_SUPERCOMP_USB_2              32
  79 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE         33
  80 #define EM2860_BOARD_TERRATEC_HYBRID_XS           34
  81 #define EM2860_BOARD_TYPHOON_DVD_MAKER            35
  82 #define EM2860_BOARD_NETGMBH_CAM                  36
  83 #define EM2860_BOARD_GADMEI_UTV330                37
  84 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER           38
  85 #define EM2861_BOARD_KWORLD_PVRTV_300U            39
  86 #define EM2861_BOARD_PLEXTOR_PX_TV100U            40
  87 #define EM2870_BOARD_KWORLD_350U                  41
  88 #define EM2870_BOARD_KWORLD_355U                  42
  89 #define EM2870_BOARD_TERRATEC_XS                  43
  90 #define EM2870_BOARD_TERRATEC_XS_MT2060           44
  91 #define EM2870_BOARD_PINNACLE_PCTV_DVB            45
  92 #define EM2870_BOARD_COMPRO_VIDEOMATE             46
  93 #define EM2880_BOARD_KWORLD_DVB_305U              47
  94 #define EM2880_BOARD_KWORLD_DVB_310U              48
  95 #define EM2880_BOARD_MSI_DIGIVOX_AD               49
  96 #define EM2880_BOARD_MSI_DIGIVOX_AD_II            50
  97 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR        51
  98 #define EM2881_BOARD_DNT_DA2_HYBRID               52
  99 #define EM2881_BOARD_PINNACLE_HYBRID_PRO          53
 100 #define EM2882_BOARD_KWORLD_VS_DVBT               54
 101 #define EM2882_BOARD_TERRATEC_HYBRID_XS           55
 102 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E     56
 103 #define EM2883_BOARD_KWORLD_HYBRID_330U                  57
 104 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU      58
 105 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850      60
 106 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2     61
 107 #define EM2820_BOARD_GADMEI_TVR200                62
 108 #define EM2860_BOARD_KAIOMY_TVNPC_U2              63
 109 #define EM2860_BOARD_EASYCAP                      64
 110 #define EM2820_BOARD_IODATA_GVMVP_SZ              65
 111 #define EM2880_BOARD_EMPIRE_DUAL_TV               66
 112 #define EM2860_BOARD_TERRATEC_GRABBY              67
 113 #define EM2860_BOARD_TERRATEC_AV350               68
 114 #define EM2882_BOARD_KWORLD_ATSC_315U             69
 115 #define EM2882_BOARD_EVGA_INDTUBE                 70
 116 #define EM2820_BOARD_SILVERCREST_WEBCAM           71
 117 #define EM2861_BOARD_GADMEI_UTV330PLUS           72
 118 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX          73
 119 #define EM2800_BOARD_VC211A                       74
 120 #define EM2882_BOARD_DIKOM_DK300                  75
 121 #define EM2870_BOARD_KWORLD_A340                  76
 122 #define EM2874_BOARD_LEADERSHIP_ISDBT             77
 123 #define EM28174_BOARD_PCTV_290E                   78
 124 #define EM2884_BOARD_TERRATEC_H5                  79
 125 #define EM28174_BOARD_PCTV_460E                   80
 126 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C     81
 127 #define EM2884_BOARD_CINERGY_HTC_STICK            82
 128 #define EM2860_BOARD_HT_VIDBOX_NW03               83
 129 #define EM2874_BOARD_MAXMEDIA_UB425_TC            84
 130 #define EM2884_BOARD_PCTV_510E                    85
 131 #define EM2884_BOARD_PCTV_520E                    86
 132 #define EM2884_BOARD_TERRATEC_HTC_USB_XS          87
 133
 134 /* Limits minimum and default number of buffers */
 135 #define EM28XX_MIN_BUF 4
 136 #define EM28XX_DEF_BUF 8
 137
 138 /*Limits the max URB message size */
 139 #define URB_MAX_CTRL_SIZE 80
 140
 141 /* Params for validated field */
 142 #define EM28XX_BOARD_NOT_VALIDATED 1
 143 #define EM28XX_BOARD_VALIDATED     0
 144
 145 /* Params for em28xx_cmd() audio */
 146 #define EM28XX_START_AUDIO      1
 147 #define EM28XX_STOP_AUDIO       0
 148
 149 /* maximum number of em28xx boards */
 150 #define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
 151
 152 /* maximum number of frames that can be queued */
 153 #define EM28XX_NUM_FRAMES 5
 154 /* number of frames that get used for v4l2_read() */
 155 #define EM28XX_NUM_READ_FRAMES 2
 156
 157 /* number of buffers for isoc transfers */
 158 #define EM28XX_NUM_BUFS 5
 159 #define EM28XX_DVB_NUM_BUFS 5
 160
 161 /* isoc transfers: number of packets for each buffer
 162    windows requests only 64 packets .. so we better do the same
 163    this is what I found out for all alternate numbers there!
 164  */
 165 #define EM28XX_NUM_ISOC_PACKETS 64
 166 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
 167
 168 /* bulk transfers: transfer buffer size = packet size * packet multiplier
 169    USB 2.0 spec says bulk packet size is always 512 bytes
 170  */
 171 #define EM28XX_BULK_PACKET_MULTIPLIER 384
 172 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384
 173
 174 #define EM28XX_INTERLACED_DEFAULT 1
 175
 176 /*
 177 #define (use usbview if you want to get the other alternate number infos)
 178 #define
 179 #define alternate number 2
 180 #define                         Endpoint Address: 82
 181                         Direction: in
 182                         Attribute: 1
 183                         Type: Isoc
 184                         Max Packet Size: 1448
 185                         Interval: 125us
 186
 187   alternate number 7
 188
 189                         Endpoint Address: 82
 190                         Direction: in
 191                         Attribute: 1
 192                         Type: Isoc
 193                         Max Packet Size: 3072
 194                         Interval: 125us
 195 */
 196
 197 /* time in msecs to wait for i2c writes to finish */
 198 #define EM2800_I2C_WRITE_TIMEOUT 20
 199
 200 enum em28xx_mode {
 201         EM28XX_SUSPEND,
 202         EM28XX_ANALOG_MODE,
 203         EM28XX_DIGITAL_MODE,
 204 };
 205
 206
 207 struct em28xx;
 208
 209 struct em28xx_usb_bufs {
 210                 /* max packet size of isoc transaction */
 211         int                             max_pkt_size;
 212
 213                 /* number of packets in each buffer */
 214         int                             num_packets;
 215
 216                 /* number of allocated urbs */
 217         int                             num_bufs;
 218
 219                 /* urb for isoc/bulk transfers */
 220         struct urb                      **urb;
 221
 222                 /* transfer buffers for isoc/bulk transfer */
 223         char                            **transfer_buffer;
 224 };
 225
 226 struct em28xx_usb_ctl {
 227                 /* isoc/bulk transfer buffers for analog mode */
 228         struct em28xx_usb_bufs          analog_bufs;
 229
 230                 /* isoc/bulk transfer buffers for digital mode */
 231         struct em28xx_usb_bufs          digital_bufs;
 232
 233                 /* Stores already requested buffers */
 234         struct em28xx_buffer            *vid_buf;
 235         struct em28xx_buffer            *vbi_buf;
 236
 237                 /* copy data from URB */
 238         int (*urb_data_copy) (struct em28xx *dev, struct urb *urb);
 239
 240 };
 241
 242 /* Struct to enumberate video formats */
 243 struct em28xx_fmt {
 244         char  *name;
 245         u32   fourcc;          /* v4l2 format id */
 246         int   depth;
 247         int   reg;
 248 };
 249
 250 /* buffer for one video frame */
 251 struct em28xx_buffer {
 252         /* common v4l buffer stuff -- must be first */
 253         struct videobuf_buffer vb;
 254
 255         struct list_head frame;
 256         int top_field;
 257 };
 258
 259 struct em28xx_dmaqueue {
 260         struct list_head       active;
 261
 262         wait_queue_head_t          wq;
 263
 264         /* Counters to control buffer fill */
 265         int                        pos;
 266 };
 267
 268 /* inputs */
 269
 270 #define MAX_EM28XX_INPUT 4
 271 enum enum28xx_itype {
 272         EM28XX_VMUX_COMPOSITE1 = 1,
 273         EM28XX_VMUX_COMPOSITE2,
 274         EM28XX_VMUX_COMPOSITE3,
 275         EM28XX_VMUX_COMPOSITE4,
 276         EM28XX_VMUX_SVIDEO,
 277         EM28XX_VMUX_TELEVISION,
 278         EM28XX_VMUX_CABLE,
 279         EM28XX_VMUX_DVB,
 280         EM28XX_VMUX_DEBUG,
 281         EM28XX_RADIO,
 282 };
 283
 284 enum em28xx_ac97_mode {
 285         EM28XX_NO_AC97 = 0,
 286         EM28XX_AC97_EM202,
 287         EM28XX_AC97_SIGMATEL,
 288         EM28XX_AC97_OTHER,
 289 };
 290
 291 struct em28xx_audio_mode {
 292         enum em28xx_ac97_mode ac97;
 293
 294         u16 ac97_feat;
 295         u32 ac97_vendor_id;
 296
 297         unsigned int has_audio:1;
 298
 299         unsigned int i2s_3rates:1;
 300         unsigned int i2s_5rates:1;
 301 };
 302
 303 /* em28xx has two audio inputs: tuner and line in.
 304    However, on most devices, an auxiliary AC97 codec device is used.
 305    The AC97 device may have several different inputs and outputs,
 306    depending on their model. So, it is possible to use AC97 mixer to
 307    address more than two different entries.
 308  */
 309 enum em28xx_amux {
 310         /* This is the only entry for em28xx tuner input */
 311         EM28XX_AMUX_VIDEO,      /* em28xx tuner, AC97 mixer Video */
 312
 313         EM28XX_AMUX_LINE_IN,    /* AC97 mixer Line In */
 314
 315         /* Some less-common mixer setups */
 316         EM28XX_AMUX_VIDEO2,     /* em28xx Line in, AC97 mixer Video */
 317         EM28XX_AMUX_PHONE,
 318         EM28XX_AMUX_MIC,
 319         EM28XX_AMUX_CD,
 320         EM28XX_AMUX_AUX,
 321         EM28XX_AMUX_PCM_OUT,
 322 };
 323
 324 enum em28xx_aout {
 325         /* AC97 outputs */
 326         EM28XX_AOUT_MASTER = 1 << 0,
 327         EM28XX_AOUT_LINE   = 1 << 1,
 328         EM28XX_AOUT_MONO   = 1 << 2,
 329         EM28XX_AOUT_LFE    = 1 << 3,
 330         EM28XX_AOUT_SURR   = 1 << 4,
 331
 332         /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
 333         EM28XX_AOUT_PCM_IN = 1 << 7,
 334
 335         /* Bits 10-8 are used to indicate the PCM IN record select */
 336         EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
 337         EM28XX_AOUT_PCM_CD      = 1 << 8,
 338         EM28XX_AOUT_PCM_VIDEO   = 2 << 8,
 339         EM28XX_AOUT_PCM_AUX     = 3 << 8,
 340         EM28XX_AOUT_PCM_LINE    = 4 << 8,
 341         EM28XX_AOUT_PCM_STEREO  = 5 << 8,
 342         EM28XX_AOUT_PCM_MONO    = 6 << 8,
 343         EM28XX_AOUT_PCM_PHONE   = 7 << 8,
 344 };
 345
 346 static inline int ac97_return_record_select(int a_out)
 347 {
 348         return (a_out & 0x700) >> 8;
 349 }
 350
 351 struct em28xx_reg_seq {
 352         int reg;
 353         unsigned char val, mask;
 354         int sleep;
 355 };
 356
 357 struct em28xx_input {
 358         enum enum28xx_itype type;
 359         unsigned int vmux;
 360         enum em28xx_amux amux;
 361         enum em28xx_aout aout;
 362         struct em28xx_reg_seq *gpio;
 363 };
 364
 365 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 366
 367 enum em28xx_decoder {
 368         EM28XX_NODECODER = 0,
 369         EM28XX_TVP5150,
 370         EM28XX_SAA711X,
 371 };
 372
 373 enum em28xx_sensor {
 374         EM28XX_NOSENSOR = 0,
 375         EM28XX_MT9V011,
 376         EM28XX_MT9M001,
 377         EM28XX_MT9M111,
 378 };
 379
 380 enum em28xx_adecoder {
 381         EM28XX_NOADECODER = 0,
 382         EM28XX_TVAUDIO,
 383 };
 384
 385 struct em28xx_board {
 386         char *name;
 387         int vchannels;
 388         int tuner_type;
 389         int tuner_addr;
 390
 391         /* i2c flags */
 392         unsigned int tda9887_conf;
 393
 394         /* GPIO sequences */
 395         struct em28xx_reg_seq *dvb_gpio;
 396         struct em28xx_reg_seq *suspend_gpio;
 397         struct em28xx_reg_seq *tuner_gpio;
 398         struct em28xx_reg_seq *mute_gpio;
 399
 400         unsigned int is_em2800:1;
 401         unsigned int has_msp34xx:1;
 402         unsigned int mts_firmware:1;
 403         unsigned int max_range_640_480:1;
 404         unsigned int has_dvb:1;
 405         unsigned int has_snapshot_button:1;
 406         unsigned int is_webcam:1;
 407         unsigned int valid:1;
 408         unsigned int has_ir_i2c:1;
 409
 410         unsigned char xclk, i2c_speed;
 411         unsigned char radio_addr;
 412         unsigned short tvaudio_addr;
 413
 414         enum em28xx_decoder decoder;
 415         enum em28xx_adecoder adecoder;
 416
 417         struct em28xx_input       input[MAX_EM28XX_INPUT];
 418         struct em28xx_input       radio;
 419         char                      *ir_codes;
 420 };
 421
 422 struct em28xx_eeprom {
 423         u32 id;                 /* 0x9567eb1a */
 424         u16 vendor_ID;
 425         u16 product_ID;
 426
 427         u16 chip_conf;
 428
 429         u16 board_conf;
 430
 431         u16 string1, string2, string3;
 432
 433         u8 string_idx_table;
 434 };
 435
 436 /* device states */
 437 enum em28xx_dev_state {
 438         DEV_INITIALIZED = 0x01,
 439         DEV_DISCONNECTED = 0x02,
 440         DEV_MISCONFIGURED = 0x04,
 441 };
 442
 443 #define EM28XX_AUDIO_BUFS 5
 444 #define EM28XX_NUM_AUDIO_PACKETS 64
 445 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
 446 #define EM28XX_CAPTURE_STREAM_EN 1
 447
 448 /* em28xx extensions */
 449 #define EM28XX_AUDIO   0x10
 450 #define EM28XX_DVB     0x20
 451 #define EM28XX_RC      0x30
 452
 453 /* em28xx resource types (used for res_get/res_lock etc */
 454 #define EM28XX_RESOURCE_VIDEO 0x01
 455 #define EM28XX_RESOURCE_VBI   0x02
 456
 457 struct em28xx_audio {
 458         char name[50];
 459         char *transfer_buffer[EM28XX_AUDIO_BUFS];
 460         struct urb *urb[EM28XX_AUDIO_BUFS];
 461         struct usb_device *udev;
 462         unsigned int capture_transfer_done;
 463         struct snd_pcm_substream   *capture_pcm_substream;
 464
 465         unsigned int hwptr_done_capture;
 466         struct snd_card            *sndcard;
 467
 468         int users;
 469         spinlock_t slock;
 470 };
 471
 472 struct em28xx;
 473
 474 struct em28xx_fh {
 475         struct em28xx *dev;
 476         int           radio;
 477         unsigned int  resources;
 478
 479         struct videobuf_queue        vb_vidq;
 480         struct videobuf_queue        vb_vbiq;
 481
 482         enum v4l2_buf_type           type;
 483 };
 484
 485 /* main device struct */
 486 struct em28xx {
 487         /* generic device properties */
 488         char name[30];          /* name (including minor) of the device */
 489         int model;              /* index in the device_data struct */
 490         int devno;              /* marks the number of this device */
 491         enum em28xx_chip_id chip_id;
 492
 493         int audio_ifnum;
 494
 495         struct v4l2_device v4l2_dev;
 496         struct em28xx_board board;
 497
 498         /* Webcam specific fields */
 499         enum em28xx_sensor em28xx_sensor;
 500         int sensor_xres, sensor_yres;
 501         int sensor_xtal;
 502
 503         /* Progressive (non-interlaced) mode */
 504         int progressive;
 505
 506         /* Vinmode/Vinctl used at the driver */
 507         int vinmode, vinctl;
 508
 509         unsigned int has_audio_class:1;
 510         unsigned int has_alsa_audio:1;
 511         unsigned int is_audio_only:1;
 512
 513         /* Controls audio streaming */
 514         struct work_struct wq_trigger;              /* Trigger to start/stop audio for alsa module */
 515          atomic_t       stream_started;      /* stream should be running if true */
 516
 517         struct em28xx_fmt *format;
 518
 519         struct em28xx_IR *ir;
 520
 521         /* Some older em28xx chips needs a waiting time after writing */
 522         unsigned int wait_after_write;
 523
 524         struct list_head        devlist;
 525
 526         u32 i2s_speed;          /* I2S speed for audio digital stream */
 527
 528         struct em28xx_audio_mode audio_mode;
 529
 530         int tuner_type;         /* type of the tuner */
 531         int tuner_addr;         /* tuner address */
 532         int tda9887_conf;
 533         /* i2c i/o */
 534         struct i2c_adapter i2c_adap;
 535         struct i2c_client i2c_client;
 536         /* video for linux */
 537         int users;              /* user count for exclusive use */
 538         struct video_device *vdev;      /* video for linux device struct */
 539         v4l2_std_id norm;       /* selected tv norm */
 540         int ctl_freq;           /* selected frequency */
 541         unsigned int ctl_input; /* selected input */
 542         unsigned int ctl_ainput;/* selected audio input */
 543         unsigned int ctl_aoutput;/* selected audio output */
 544         int mute;
 545         int volume;
 546         /* frame properties */
 547         int width;              /* current frame width */
 548         int height;             /* current frame height */
 549         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 550         unsigned vscale;        /* vertical scale factor (see datasheet) */
 551         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 552         unsigned int video_bytesread;   /* Number of bytes read */
 553
 554         unsigned long hash;     /* eeprom hash - for boards with generic ID */
 555         unsigned long i2c_hash; /* i2c devicelist hash -
 556                                    for boards with generic ID */
 557
 558         struct em28xx_audio adev;
 559
 560         /* states */
 561         enum em28xx_dev_state state;
 562
 563         /* vbi related state tracking */
 564         int capture_type;
 565         int vbi_read;
 566         unsigned char cur_field;
 567         unsigned int vbi_width;
 568         unsigned int vbi_height; /* lines per field */
 569
 570         struct work_struct         request_module_wk;
 571
 572         /* locks */
 573         struct mutex lock;
 574         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 575         /* spinlock_t queue_lock; */
 576         struct list_head inqueue, outqueue;
 577         struct video_device *vbi_dev;
 578         struct video_device *radio_dev;
 579
 580         /* resources in use */
 581         unsigned int resources;
 582
 583         unsigned char eedata[256];
 584
 585         /* Isoc control struct */
 586         struct em28xx_dmaqueue vidq;
 587         struct em28xx_dmaqueue vbiq;
 588         struct em28xx_usb_ctl usb_ctl;
 589         spinlock_t slock;
 590
 591         /* usb transfer */
 592         struct usb_device *udev;        /* the usb device */
 593         u8 analog_ep_isoc;      /* address of isoc endpoint for analog */
 594         u8 analog_ep_bulk;      /* address of bulk endpoint for analog */
 595         u8 dvb_ep_isoc;         /* address of isoc endpoint for DVB */
 596         u8 dvb_ep_bulk;         /* address of bulk endpoint for DVC */
 597         int alt;                /* alternate setting */
 598         int max_pkt_size;       /* max packet size of the selected ep at alt */
 599         int packet_multiplier;  /* multiplier for wMaxPacketSize, used for
 600                                    URB buffer size definition */
 601         int num_alt;            /* number of alternative settings */
 602         unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */
 603         unsigned int analog_xfer_bulk:1;        /* use bulk instead of isoc
 604                                                    transfers for analog      */
 605         int dvb_alt_isoc;       /* alternate setting for DVB isoc transfers */
 606         unsigned int dvb_max_pkt_size_isoc;     /* isoc max packet size of the
 607                                                    selected DVB ep at dvb_alt */
 608         unsigned int dvb_xfer_bulk:1;           /* use bulk instead of isoc
 609                                                    transfers for DVB          */
 610         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 611
 612         /* helper funcs that call usb_control_msg */
 613         int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
 614                                         char *buf, int len);
 615         int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
 616         int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
 617                                         char *buf, int len);
 618         int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
 619                                       char *buf, int len);
 620         int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
 621
 622         enum em28xx_mode mode;
 623
 624         /* register numbers for GPO/GPIO registers */
 625         u16 reg_gpo_num, reg_gpio_num;
 626
 627         /* Caches GPO and GPIO registers */
 628         unsigned char   reg_gpo, reg_gpio;
 629
 630         /* Snapshot button */
 631         char snapshot_button_path[30];  /* path of the input dev */
 632         struct input_dev *sbutton_input_dev;
 633         struct delayed_work sbutton_query_work;
 634
 635         struct em28xx_dvb *dvb;
 636
 637         /* I2C keyboard data */
 638         struct IR_i2c_init_data init_data;
 639 };
 640
 641 struct em28xx_ops {
 642         struct list_head next;
 643         char *name;
 644         int id;
 645         int (*init)(struct em28xx *);
 646         int (*fini)(struct em28xx *);
 647 };
 648
 649 /* Provided by em28xx-i2c.c */
 650 void em28xx_do_i2c_scan(struct em28xx *dev);
 651 int  em28xx_i2c_register(struct em28xx *dev);
 652 int  em28xx_i2c_unregister(struct em28xx *dev);
 653
 654 /* Provided by em28xx-core.c */
 655
 656 u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
 657 void em28xx_queue_unusedframes(struct em28xx *dev);
 658 void em28xx_release_buffers(struct em28xx *dev);
 659
 660 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 661                             char *buf, int len);
 662 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
 663 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 664 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 665                           int len);
 666 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 667 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 668 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
 669                                  u8 bitmask);
 670
 671 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 672 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 673
 674 int em28xx_audio_analog_set(struct em28xx *dev);
 675 int em28xx_audio_setup(struct em28xx *dev);
 676
 677 int em28xx_colorlevels_set_default(struct em28xx *dev);
 678 int em28xx_capture_start(struct em28xx *dev, int start);
 679 int em28xx_vbi_supported(struct em28xx *dev);
 680 int em28xx_set_outfmt(struct em28xx *dev);
 681 int em28xx_resolution_set(struct em28xx *dev);
 682 int em28xx_set_alternate(struct em28xx *dev);
 683 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
 684                       int num_bufs, int max_pkt_size, int packet_multiplier);
 685 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
 686                          int xfer_bulk,
 687                          int num_bufs, int max_pkt_size, int packet_multiplier,
 688                          int (*urb_data_copy)
 689                                         (struct em28xx *dev, struct urb *urb));
 690 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
 691 void em28xx_stop_urbs(struct em28xx *dev);
 692 int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
 693 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 694 int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
 695 void em28xx_wake_i2c(struct em28xx *dev);
 696 int em28xx_register_extension(struct em28xx_ops *dev);
 697 void em28xx_unregister_extension(struct em28xx_ops *dev);
 698 void em28xx_init_extension(struct em28xx *dev);
 699 void em28xx_close_extension(struct em28xx *dev);
 700
 701 /* Provided by em28xx-video.c */
 702 int em28xx_register_analog_devices(struct em28xx *dev);
 703 void em28xx_release_analog_resources(struct em28xx *dev);
 704
 705 /* Provided by em28xx-cards.c */
 706 extern int em2800_variant_detect(struct usb_device *udev, int model);
 707 extern struct em28xx_board em28xx_boards[];
 708 extern struct usb_device_id em28xx_id_table[];
 709 extern const unsigned int em28xx_bcount;
 710 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 711 void em28xx_release_resources(struct em28xx *dev);
 712
 713 /* Provided by em28xx-vbi.c */
 714 extern struct videobuf_queue_ops em28xx_vbi_qops;
 715
 716 /* printk macros */
 717
 718 #define em28xx_err(fmt, arg...) do {\
 719         printk(KERN_ERR fmt , ##arg); } while (0)
 720
 721 #define em28xx_errdev(fmt, arg...) do {\
 722         printk(KERN_ERR "%s: "fmt,\
 723                         dev->name , ##arg); } while (0)
 724
 725 #define em28xx_info(fmt, arg...) do {\
 726         printk(KERN_INFO "%s: "fmt,\
 727                         dev->name , ##arg); } while (0)
 728 #define em28xx_warn(fmt, arg...) do {\
 729         printk(KERN_WARNING "%s: "fmt,\
 730                         dev->name , ##arg); } while (0)
 731
 732 static inline int em28xx_compression_disable(struct em28xx *dev)
 733 {
 734         /* side effect of disabling scaler and mixer */
 735         return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
 736 }
 737
 738 static inline int em28xx_contrast_get(struct em28xx *dev)
 739 {
 740         return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
 741 }
 742
 743 static inline int em28xx_brightness_get(struct em28xx *dev)
 744 {
 745         return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
 746 }
 747
 748 static inline int em28xx_saturation_get(struct em28xx *dev)
 749 {
 750         return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
 751 }
 752
 753 static inline int em28xx_u_balance_get(struct em28xx *dev)
 754 {
 755         return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
 756 }
 757
 758 static inline int em28xx_v_balance_get(struct em28xx *dev)
 759 {
 760         return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
 761 }
 762
 763 static inline int em28xx_gamma_get(struct em28xx *dev)
 764 {
 765         return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
 766 }
 767
 768 static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
 769 {
 770         u8 tmp = (u8) val;
 771         return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
 772 }
 773
 774 static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
 775 {
 776         u8 tmp = (u8) val;
 777         return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
 778 }
 779
 780 static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
 781 {
 782         u8 tmp = (u8) val;
 783         return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
 784 }
 785
 786 static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
 787 {
 788         u8 tmp = (u8) val;
 789         return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
 790 }
 791
 792 static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
 793 {
 794         u8 tmp = (u8) val;
 795         return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
 796 }
 797
 798 static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
 799 {
 800         u8 tmp = (u8) val;
 801         return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
 802 }
 803
 804 /*FIXME: maxw should be dependent of alt mode */
 805 static inline unsigned int norm_maxw(struct em28xx *dev)
 806 {
 807         if (dev->board.is_webcam)
 808                 return dev->sensor_xres;
 809
 810         if (dev->board.max_range_640_480)
 811                 return 640;
 812
 813         return 720;
 814 }
 815
 816 static inline unsigned int norm_maxh(struct em28xx *dev)
 817 {
 818         if (dev->board.is_webcam)
 819                 return dev->sensor_yres;
 820
 821         if (dev->board.max_range_640_480)
 822                 return 480;
 823
 824         return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 825 }
 826 #endif