drivers/media/usb/em28xx/em28xx.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
   4  *
   5  * Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
   6  *                    Ludovico Cavedon <cavedon@sssup.it>
   7  *                    Mauro Carvalho Chehab <mchehab@kernel.org>
   8  * Copyright (C) 2012 Frank Schäfer <fschaefer.oss@googlemail.com>
   9  *
  10  * Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  */
  22
  23 #ifndef _EM28XX_H
  24 #define _EM28XX_H
  25
  26 #include <linux/bitfield.h>
  27
  28 #define EM28XX_VERSION "0.2.2"
  29 #define DRIVER_DESC    "Empia em28xx device driver"
  30
  31 #include <linux/workqueue.h>
  32 #include <linux/i2c.h>
  33 #include <linux/mutex.h>
  34 #include <linux/kref.h>
  35 #include <linux/videodev2.h>
  36
  37 #include <media/videobuf2-v4l2.h>
  38 #include <media/videobuf2-vmalloc.h>
  39 #include <media/v4l2-device.h>
  40 #include <media/v4l2-ctrls.h>
  41 #include <media/v4l2-fh.h>
  42 #include <media/i2c/ir-kbd-i2c.h>
  43 #include <media/rc-core.h>
  44 #include "tuner-xc2028.h"
  45 #include "xc5000.h"
  46 #include "em28xx-reg.h"
  47
  48 /* Boards supported by driver */
  49 #define EM2800_BOARD_UNKNOWN                      0
  50 #define EM2820_BOARD_UNKNOWN                      1
  51 #define EM2820_BOARD_TERRATEC_CINERGY_250         2
  52 #define EM2820_BOARD_PINNACLE_USB_2               3
  53 #define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2        4
  54 #define EM2820_BOARD_MSI_VOX_USB_2                5
  55 #define EM2800_BOARD_TERRATEC_CINERGY_200         6
  56 #define EM2800_BOARD_LEADTEK_WINFAST_USBII        7
  57 #define EM2800_BOARD_KWORLD_USB2800               8
  58 #define EM2820_BOARD_PINNACLE_DVC_90              9
  59 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900      10
  60 #define EM2880_BOARD_TERRATEC_HYBRID_XS           11
  61 #define EM2820_BOARD_KWORLD_PVRTV2800RF           12
  62 #define EM2880_BOARD_TERRATEC_PRODIGY_XS          13
  63 #define EM2820_BOARD_PROLINK_PLAYTV_USB2          14
  64 #define EM2800_BOARD_VGEAR_POCKETTV               15
  65 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950      16
  66 #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO         17
  67 #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2   18
  68 #define EM2860_BOARD_SAA711X_REFERENCE_DESIGN     19
  69 #define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600     20
  70 #define EM2800_BOARD_GRABBEEX_USB2800             21
  71 #define EM2750_BOARD_UNKNOWN                      22
  72 #define EM2750_BOARD_DLCW_130                     23
  73 #define EM2820_BOARD_DLINK_USB_TV                 24
  74 #define EM2820_BOARD_GADMEI_UTV310                25
  75 #define EM2820_BOARD_HERCULES_SMART_TV_USB2       26
  76 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME      27
  77 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
  78 #define EM2860_BOARD_TVP5150_REFERENCE_DESIGN     29
  79 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB          30
  80 #define EM2821_BOARD_USBGEAR_VD204                31
  81 #define EM2821_BOARD_SUPERCOMP_USB_2              32
  82 #define EM2860_BOARD_ELGATO_VIDEO_CAPTURE         33
  83 #define EM2860_BOARD_TERRATEC_HYBRID_XS           34
  84 #define EM2860_BOARD_TYPHOON_DVD_MAKER            35
  85 #define EM2860_BOARD_NETGMBH_CAM                  36
  86 #define EM2860_BOARD_GADMEI_UTV330                37
  87 #define EM2861_BOARD_YAKUMO_MOVIE_MIXER           38
  88 #define EM2861_BOARD_KWORLD_PVRTV_300U            39
  89 #define EM2861_BOARD_PLEXTOR_PX_TV100U            40
  90 #define EM2870_BOARD_KWORLD_350U                  41
  91 #define EM2870_BOARD_KWORLD_355U                  42
  92 #define EM2870_BOARD_TERRATEC_XS                  43
  93 #define EM2870_BOARD_TERRATEC_XS_MT2060           44
  94 #define EM2870_BOARD_PINNACLE_PCTV_DVB            45
  95 #define EM2870_BOARD_COMPRO_VIDEOMATE             46
  96 #define EM2880_BOARD_KWORLD_DVB_305U              47
  97 #define EM2880_BOARD_KWORLD_DVB_310U              48
  98 #define EM2880_BOARD_MSI_DIGIVOX_AD               49
  99 #define EM2880_BOARD_MSI_DIGIVOX_AD_II            50
 100 #define EM2880_BOARD_TERRATEC_HYBRID_XS_FR        51
 101 #define EM2881_BOARD_DNT_DA2_HYBRID               52
 102 #define EM2881_BOARD_PINNACLE_HYBRID_PRO          53
 103 #define EM2882_BOARD_KWORLD_VS_DVBT               54
 104 #define EM2882_BOARD_TERRATEC_HYBRID_XS           55
 105 #define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E     56
 106 #define EM2883_BOARD_KWORLD_HYBRID_330U           57
 107 #define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU      58
 108 #define EM2874_BOARD_PCTV_HD_MINI_80E             59
 109 #define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850      60
 110 #define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2     61
 111 #define EM2820_BOARD_GADMEI_TVR200                62
 112 #define EM2860_BOARD_KAIOMY_TVNPC_U2              63
 113 #define EM2860_BOARD_EASYCAP                      64
 114 #define EM2820_BOARD_IODATA_GVMVP_SZ              65
 115 #define EM2880_BOARD_EMPIRE_DUAL_TV               66
 116 #define EM2860_BOARD_TERRATEC_GRABBY              67
 117 #define EM2860_BOARD_TERRATEC_AV350               68
 118 #define EM2882_BOARD_KWORLD_ATSC_315U             69
 119 #define EM2882_BOARD_EVGA_INDTUBE                 70
 120 #define EM2820_BOARD_SILVERCREST_WEBCAM           71
 121 #define EM2861_BOARD_GADMEI_UTV330PLUS            72
 122 #define EM2870_BOARD_REDDO_DVB_C_USB_BOX          73
 123 #define EM2800_BOARD_VC211A                       74
 124 #define EM2882_BOARD_DIKOM_DK300                  75
 125 #define EM2870_BOARD_KWORLD_A340                  76
 126 #define EM2874_BOARD_LEADERSHIP_ISDBT             77
 127 #define EM28174_BOARD_PCTV_290E                   78
 128 #define EM2884_BOARD_TERRATEC_H5                  79
 129 #define EM28174_BOARD_PCTV_460E                   80
 130 #define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C     81
 131 #define EM2884_BOARD_CINERGY_HTC_STICK            82
 132 #define EM2860_BOARD_HT_VIDBOX_NW03               83
 133 #define EM2874_BOARD_MAXMEDIA_UB425_TC            84
 134 #define EM2884_BOARD_PCTV_510E                    85
 135 #define EM2884_BOARD_PCTV_520E                    86
 136 #define EM2884_BOARD_TERRATEC_HTC_USB_XS          87
 137 #define EM2884_BOARD_C3TECH_DIGITAL_DUO           88
 138 #define EM2874_BOARD_DELOCK_61959                 89
 139 #define EM2874_BOARD_KWORLD_UB435Q_V2             90
 140 #define EM2765_BOARD_SPEEDLINK_VAD_LAPLACE        91
 141 #define EM28178_BOARD_PCTV_461E                   92
 142 #define EM2874_BOARD_KWORLD_UB435Q_V3             93
 143 #define EM28178_BOARD_PCTV_292E                   94
 144 #define EM2861_BOARD_LEADTEK_VC100                95
 145 #define EM28178_BOARD_TERRATEC_T2_STICK_HD        96
 146 #define EM2884_BOARD_ELGATO_EYETV_HYBRID_2008     97
 147 #define EM28178_BOARD_PLEX_PX_BCUD                98
 148 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_DVB  99
 149 #define EM28174_BOARD_HAUPPAUGE_WINTV_DUALHD_01595 100
 150 #define EM2884_BOARD_TERRATEC_H6                  101
 151 #define EM2882_BOARD_ZOLID_HYBRID_TV_STICK              102
 152
 153 /* Limits minimum and default number of buffers */
 154 #define EM28XX_MIN_BUF 4
 155 #define EM28XX_DEF_BUF 8
 156
 157 /*Limits the max URB message size */
 158 #define URB_MAX_CTRL_SIZE 80
 159
 160 /* Params for validated field */
 161 #define EM28XX_BOARD_NOT_VALIDATED 1
 162 #define EM28XX_BOARD_VALIDATED     0
 163
 164 /* Params for em28xx_cmd() audio */
 165 #define EM28XX_START_AUDIO      1
 166 #define EM28XX_STOP_AUDIO       0
 167
 168 /* maximum number of em28xx boards */
 169 #define EM28XX_MAXBOARDS DVB_MAX_ADAPTERS /* All adapters could be em28xx */
 170
 171 /* maximum number of frames that can be queued */
 172 #define EM28XX_NUM_FRAMES 5
 173 /* number of frames that get used for v4l2_read() */
 174 #define EM28XX_NUM_READ_FRAMES 2
 175
 176 /* number of buffers for isoc transfers */
 177 #define EM28XX_NUM_BUFS 5
 178 #define EM28XX_DVB_NUM_BUFS 5
 179
 180 /* max number of I2C buses on em28xx devices */
 181 #define NUM_I2C_BUSES   2
 182
 183 /*
 184  * isoc transfers: number of packets for each buffer
 185  * windows requests only 64 packets .. so we better do the same
 186  * this is what I found out for all alternate numbers there!
 187  */
 188 #define EM28XX_NUM_ISOC_PACKETS 64
 189 #define EM28XX_DVB_NUM_ISOC_PACKETS 64
 190
 191 /*
 192  * bulk transfers: transfer buffer size = packet size * packet multiplier
 193  * USB 2.0 spec says bulk packet size is always 512 bytes
 194  */
 195 #define EM28XX_BULK_PACKET_MULTIPLIER 384
 196 #define EM28XX_DVB_BULK_PACKET_MULTIPLIER 94
 197
 198 #define EM28XX_INTERLACED_DEFAULT 1
 199
 200 /* time in msecs to wait for AC97 xfers to finish */
 201 #define EM28XX_AC97_XFER_TIMEOUT        100
 202
 203 /* max. number of button state polling addresses */
 204 #define EM28XX_NUM_BUTTON_ADDRESSES_MAX         5
 205
 206 #define PRIMARY_TS      0
 207 #define SECONDARY_TS    1
 208
 209 enum em28xx_mode {
 210         EM28XX_SUSPEND,
 211         EM28XX_ANALOG_MODE,
 212         EM28XX_DIGITAL_MODE,
 213 };
 214
 215 struct em28xx;
 216
 217 /**
 218  * struct em28xx_usb_bufs - Contains URB-related buffer data
 219  *
 220  * @max_pkt_size:       max packet size of isoc transaction
 221  * @num_packets:        number of packets in each buffer
 222  * @num_bufs:           number of allocated urb
 223  * @urb:                urb for isoc/bulk transfers
 224  * @buf:                transfer buffers for isoc/bulk transfer
 225  */
 226 struct em28xx_usb_bufs {
 227         int                             max_pkt_size;
 228         int                             num_packets;
 229         int                             num_bufs;
 230         struct urb                      **urb;
 231         char                            **buf;
 232 };
 233
 234 /**
 235  * struct em28xx_usb_ctl - Contains URB-related buffer data
 236  *
 237  * @analog_bufs:        isoc/bulk transfer buffers for analog mode
 238  * @digital_bufs:       isoc/bulk transfer buffers for digital mode
 239  * @vid_buf:            Stores already requested video buffers
 240  * @vbi_buf:            Stores already requested VBI buffers
 241  * @urb_data_copy:      copy data from URB
 242  */
 243 struct em28xx_usb_ctl {
 244         struct em28xx_usb_bufs          analog_bufs;
 245         struct em28xx_usb_bufs          digital_bufs;
 246         struct em28xx_buffer    *vid_buf;
 247         struct em28xx_buffer    *vbi_buf;
 248         int (*urb_data_copy)(struct em28xx *dev, struct urb *urb);
 249 };
 250
 251 /**
 252  * struct em28xx_fmt - Struct to enumberate video formats
 253  *
 254  * @name:       Name for the video standard
 255  * @fourcc:     v4l2 format id
 256  * @depth:      mean number of bits to represent a pixel
 257  * @reg:        em28xx register value to set it
 258  */
 259 struct em28xx_fmt {
 260         char    *name;
 261         u32     fourcc;
 262         int     depth;
 263         int     reg;
 264 };
 265
 266 /**
 267  * struct em28xx_buffer- buffer for storing one video frame
 268  *
 269  * @vb:         common v4l buffer stuff
 270  * @list:       List to associate it with the other buffers
 271  * @mem:        pointer to the buffer, as returned by vb2_plane_vaddr()
 272  * @length:     length of the buffer, as returned by vb2_plane_size()
 273  * @top_field:  If non-zero, indicate that the buffer is the top field
 274  * @pos:        Indicate the next position of the buffer to be filled.
 275  * @vb_buf:     pointer to vmalloc memory address in vb
 276  *
 277  * .. note::
 278  *
 279  *    in interlaced mode, @pos is reset to zero at the start of each new
 280  *    field (not frame !)
 281  */
 282 struct em28xx_buffer {
 283         struct vb2_v4l2_buffer  vb;             /* must be first */
 284
 285         struct list_head        list;
 286
 287         void                    *mem;
 288         unsigned int            length;
 289         int                     top_field;
 290
 291         unsigned int            pos;
 292
 293         char                    *vb_buf;
 294 };
 295
 296 struct em28xx_dmaqueue {
 297         struct list_head       active;
 298
 299         wait_queue_head_t          wq;
 300 };
 301
 302 /* inputs */
 303
 304 #define MAX_EM28XX_INPUT 4
 305 enum enum28xx_itype {
 306         EM28XX_VMUX_COMPOSITE = 1,
 307         EM28XX_VMUX_SVIDEO,
 308         EM28XX_VMUX_TELEVISION,
 309         EM28XX_RADIO,
 310 };
 311
 312 enum em28xx_ac97_mode {
 313         EM28XX_NO_AC97 = 0,
 314         EM28XX_AC97_EM202,
 315         EM28XX_AC97_SIGMATEL,
 316         EM28XX_AC97_OTHER,
 317 };
 318
 319 struct em28xx_audio_mode {
 320         enum em28xx_ac97_mode ac97;
 321 };
 322
 323 enum em28xx_int_audio_type {
 324         EM28XX_INT_AUDIO_NONE = 0,
 325         EM28XX_INT_AUDIO_AC97,
 326         EM28XX_INT_AUDIO_I2S,
 327 };
 328
 329 enum em28xx_usb_audio_type {
 330         EM28XX_USB_AUDIO_NONE = 0,
 331         EM28XX_USB_AUDIO_CLASS,
 332         EM28XX_USB_AUDIO_VENDOR,
 333 };
 334
 335 /**
 336  * em28xx_amux - describes the type of audio input used by em28xx
 337  *
 338  * @EM28XX_AMUX_VIDEO:
 339  *      On devices without AC97, this is the only value that it is currently
 340  *      allowed.
 341  *      On devices with AC97, it corresponds to the AC97 mixer "Video" control.
 342  * @EM28XX_AMUX_LINE_IN:
 343  *      Only for devices with AC97. Corresponds to AC97 mixer "Line In".
 344  * @EM28XX_AMUX_VIDEO2:
 345  *      Only for devices with AC97. It means that em28xx should use "Line In"
 346  *      And AC97 should use the "Video" mixer control.
 347  * @EM28XX_AMUX_PHONE:
 348  *      Only for devices with AC97. Corresponds to AC97 mixer "Phone".
 349  * @EM28XX_AMUX_MIC:
 350  *      Only for devices with AC97. Corresponds to AC97 mixer "Mic".
 351  * @EM28XX_AMUX_CD:
 352  *      Only for devices with AC97. Corresponds to AC97 mixer "CD".
 353  * @EM28XX_AMUX_AUX:
 354  *      Only for devices with AC97. Corresponds to AC97 mixer "Aux".
 355  * @EM28XX_AMUX_PCM_OUT:
 356  *      Only for devices with AC97. Corresponds to AC97 mixer "PCM out".
 357  *
 358  * The em28xx chip itself has only two audio inputs: tuner and line in.
 359  * On almost all devices, only the tuner input is used.
 360  *
 361  * However, on most devices, an auxiliary AC97 codec device is used,
 362  * usually connected to the em28xx tuner input (except for
 363  * @EM28XX_AMUX_LINE_IN).
 364  *
 365  * The AC97 device typically have several different inputs and outputs.
 366  * The exact number and description depends on their model.
 367  *
 368  * It is possible to AC97 to mixer more than one different entries at the
 369  * same time, via the alsa mux.
 370  */
 371 enum em28xx_amux {
 372         EM28XX_AMUX_VIDEO,
 373         EM28XX_AMUX_LINE_IN,
 374
 375         /* Some less-common mixer setups */
 376         EM28XX_AMUX_VIDEO2,
 377         EM28XX_AMUX_PHONE,
 378         EM28XX_AMUX_MIC,
 379         EM28XX_AMUX_CD,
 380         EM28XX_AMUX_AUX,
 381         EM28XX_AMUX_PCM_OUT,
 382 };
 383
 384 enum em28xx_aout {
 385         /* AC97 outputs */
 386         EM28XX_AOUT_MASTER = BIT(0),
 387         EM28XX_AOUT_LINE   = BIT(1),
 388         EM28XX_AOUT_MONO   = BIT(2),
 389         EM28XX_AOUT_LFE    = BIT(3),
 390         EM28XX_AOUT_SURR   = BIT(4),
 391
 392         /* PCM IN Mixer - used by AC97_RECORD_SELECT register */
 393         EM28XX_AOUT_PCM_IN = BIT(7),
 394
 395         /* Bits 10-8 are used to indicate the PCM IN record select */
 396         EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
 397         EM28XX_AOUT_PCM_CD      = 1 << 8,
 398         EM28XX_AOUT_PCM_VIDEO   = 2 << 8,
 399         EM28XX_AOUT_PCM_AUX     = 3 << 8,
 400         EM28XX_AOUT_PCM_LINE    = 4 << 8,
 401         EM28XX_AOUT_PCM_STEREO  = 5 << 8,
 402         EM28XX_AOUT_PCM_MONO    = 6 << 8,
 403         EM28XX_AOUT_PCM_PHONE   = 7 << 8,
 404 };
 405
 406 static inline int ac97_return_record_select(int a_out)
 407 {
 408         return (a_out & 0x700) >> 8;
 409 }
 410
 411 struct em28xx_reg_seq {
 412         int reg;
 413         unsigned char val, mask;
 414         int sleep;
 415 };
 416
 417 struct em28xx_input {
 418         enum enum28xx_itype type;
 419         unsigned int vmux;
 420         enum em28xx_amux amux;
 421         enum em28xx_aout aout;
 422         const struct em28xx_reg_seq *gpio;
 423 };
 424
 425 #define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
 426
 427 enum em28xx_decoder {
 428         EM28XX_NODECODER = 0,
 429         EM28XX_TVP5150,
 430         EM28XX_SAA711X,
 431 };
 432
 433 enum em28xx_sensor {
 434         EM28XX_NOSENSOR = 0,
 435         EM28XX_MT9V011,
 436         EM28XX_MT9M001,
 437         EM28XX_MT9M111,
 438         EM28XX_OV2640,
 439 };
 440
 441 enum em28xx_adecoder {
 442         EM28XX_NOADECODER = 0,
 443         EM28XX_TVAUDIO,
 444 };
 445
 446 enum em28xx_led_role {
 447         EM28XX_LED_ANALOG_CAPTURING = 0,
 448         EM28XX_LED_DIGITAL_CAPTURING,
 449         EM28XX_LED_DIGITAL_CAPTURING_TS2,
 450         EM28XX_LED_ILLUMINATION,
 451         EM28XX_NUM_LED_ROLES, /* must be the last */
 452 };
 453
 454 struct em28xx_led {
 455         enum em28xx_led_role role;
 456         u8 gpio_reg;
 457         u8 gpio_mask;
 458         bool inverted;
 459 };
 460
 461 enum em28xx_button_role {
 462         EM28XX_BUTTON_SNAPSHOT = 0,
 463         EM28XX_BUTTON_ILLUMINATION,
 464         EM28XX_NUM_BUTTON_ROLES, /* must be the last */
 465 };
 466
 467 struct em28xx_button {
 468         enum em28xx_button_role role;
 469         u8 reg_r;
 470         u8 reg_clearing;
 471         u8 mask;
 472         bool inverted;
 473 };
 474
 475 struct em28xx_board {
 476         char *name;
 477         int vchannels;
 478         int tuner_type;
 479         int tuner_addr;
 480         unsigned int def_i2c_bus;       /* Default I2C bus */
 481
 482         /* i2c flags */
 483         unsigned int tda9887_conf;
 484
 485         /* GPIO sequences */
 486         const struct em28xx_reg_seq *dvb_gpio;
 487         const struct em28xx_reg_seq *suspend_gpio;
 488         const struct em28xx_reg_seq *tuner_gpio;
 489         const struct em28xx_reg_seq *mute_gpio;
 490
 491         unsigned int is_em2800:1;
 492         unsigned int has_msp34xx:1;
 493         unsigned int mts_firmware:1;
 494         unsigned int max_range_640_480:1;
 495         unsigned int has_dvb:1;
 496         unsigned int has_dual_ts:1;
 497         unsigned int is_webcam:1;
 498         unsigned int valid:1;
 499         unsigned int has_ir_i2c:1;
 500
 501         unsigned char xclk, i2c_speed;
 502         unsigned char radio_addr;
 503         unsigned short tvaudio_addr;
 504
 505         enum em28xx_decoder decoder;
 506         enum em28xx_adecoder adecoder;
 507
 508         struct em28xx_input       input[MAX_EM28XX_INPUT];
 509         struct em28xx_input       radio;
 510         char                      *ir_codes;
 511
 512         /* LEDs that need to be controlled explicitly */
 513         struct em28xx_led         *leds;
 514
 515         /* Buttons */
 516         const struct em28xx_button *buttons;
 517 };
 518
 519 struct em28xx_eeprom {
 520         u8 id[4];                       /* 1a eb 67 95 */
 521         __le16 vendor_ID;
 522         __le16 product_ID;
 523
 524         __le16 chip_conf;
 525
 526         __le16 board_conf;
 527
 528         __le16 string1, string2, string3;
 529
 530         u8 string_idx_table;
 531 };
 532
 533 #define EM28XX_CAPTURE_STREAM_EN 1
 534
 535 /* em28xx extensions */
 536 #define EM28XX_AUDIO   0x10
 537 #define EM28XX_DVB     0x20
 538 #define EM28XX_RC      0x30
 539 #define EM28XX_V4L2    0x40
 540
 541 /* em28xx resource types (used for res_get/res_lock etc */
 542 #define EM28XX_RESOURCE_VIDEO 0x01
 543 #define EM28XX_RESOURCE_VBI   0x02
 544
 545 struct em28xx_v4l2 {
 546         struct kref ref;
 547         struct em28xx *dev;
 548
 549         struct v4l2_device v4l2_dev;
 550         struct v4l2_ctrl_handler ctrl_handler;
 551
 552         struct video_device vdev;
 553         struct video_device vbi_dev;
 554         struct video_device radio_dev;
 555
 556         /* Videobuf2 */
 557         struct vb2_queue vb_vidq;
 558         struct vb2_queue vb_vbiq;
 559         struct mutex vb_queue_lock;     /* Protects vb_vidq */
 560         struct mutex vb_vbi_queue_lock; /* Protects vb_vbiq */
 561
 562         u8 vinmode;
 563         u8 vinctl;
 564
 565         /* Camera specific fields */
 566         int sensor_xres;
 567         int sensor_yres;
 568         int sensor_xtal;
 569
 570         int users;              /* user count for exclusive use */
 571         int streaming_users;    /* number of actively streaming users */
 572
 573         u32 frequency;          /* selected tuner frequency */
 574
 575         struct em28xx_fmt *format;
 576         v4l2_std_id norm;       /* selected tv norm */
 577
 578         /* Progressive/interlaced mode */
 579         bool progressive;
 580         int interlaced_fieldmode; /* 1=interlaced fields, 0=just top fields */
 581         /* FIXME: everything else than interlaced_fieldmode=1 doesn't work */
 582
 583         /* Frame properties */
 584         int width;              /* current frame width */
 585         int height;             /* current frame height */
 586         unsigned int hscale;    /* horizontal scale factor (see datasheet) */
 587         unsigned int vscale;    /* vertical scale factor (see datasheet) */
 588         unsigned int vbi_width;
 589         unsigned int vbi_height; /* lines per field */
 590
 591         /* Capture state tracking */
 592         int capture_type;
 593         bool top_field;
 594         int vbi_read;
 595         unsigned int field_count;
 596
 597 #ifdef CONFIG_MEDIA_CONTROLLER
 598         struct media_pad video_pad, vbi_pad;
 599         struct media_entity *decoder;
 600 #endif
 601 };
 602
 603 struct em28xx_audio {
 604         char name[50];
 605         unsigned int num_urb;
 606         char **transfer_buffer;
 607         struct urb **urb;
 608         struct usb_device *udev;
 609         unsigned int capture_transfer_done;
 610         struct snd_pcm_substream   *capture_pcm_substream;
 611
 612         unsigned int hwptr_done_capture;
 613         struct snd_card            *sndcard;
 614
 615         size_t period;
 616
 617         int users;
 618         spinlock_t slock;               /* Protects struct em28xx_audio */
 619
 620         /* Controls streaming */
 621         struct work_struct wq_trigger;  /* trigger to start/stop audio */
 622         atomic_t       stream_started;  /* stream should be running if true */
 623 };
 624
 625 struct em28xx;
 626
 627 enum em28xx_i2c_algo_type {
 628         EM28XX_I2C_ALGO_EM28XX = 0,
 629         EM28XX_I2C_ALGO_EM2800,
 630         EM28XX_I2C_ALGO_EM25XX_BUS_B,
 631 };
 632
 633 struct em28xx_i2c_bus {
 634         struct em28xx *dev;
 635
 636         unsigned int bus;
 637         enum em28xx_i2c_algo_type algo_type;
 638 };
 639
 640 /* main device struct */
 641 struct em28xx {
 642         struct kref ref;
 643
 644         // Sub-module data
 645         struct em28xx_v4l2 *v4l2;
 646         struct em28xx_dvb *dvb;
 647         struct em28xx_audio adev;
 648         struct em28xx_IR *ir;
 649
 650         // generic device properties
 651         int model;              // index in the device_data struct
 652         int devno;              // marks the number of this device
 653         enum em28xx_chip_id chip_id;
 654
 655         unsigned int is_em25xx:1;       // em25xx/em276x/7x/8x family bridge
 656         unsigned int disconnected:1;    // device has been diconnected
 657         unsigned int has_video:1;
 658         unsigned int is_audio_only:1;
 659         unsigned int is_webcam:1;
 660         unsigned int has_msp34xx:1;
 661         unsigned int i2c_speed:2;
 662         enum em28xx_int_audio_type int_audio_type;
 663         enum em28xx_usb_audio_type usb_audio_type;
 664         unsigned char name[32];
 665
 666         struct em28xx_board board;
 667
 668         enum em28xx_sensor em28xx_sensor;       // camera specific
 669
 670         // Some older em28xx chips needs a waiting time after writing
 671         unsigned int wait_after_write;
 672
 673         struct list_head        devlist;
 674
 675         u32 i2s_speed;          // I2S speed for audio digital stream
 676
 677         struct em28xx_audio_mode audio_mode;
 678
 679         int tuner_type;         // type of the tuner
 680
 681         // i2c i/o
 682         struct i2c_adapter i2c_adap[NUM_I2C_BUSES];
 683         struct i2c_client i2c_client[NUM_I2C_BUSES];
 684         struct em28xx_i2c_bus i2c_bus[NUM_I2C_BUSES];
 685
 686         unsigned char eeprom_addrwidth_16bit:1;
 687         unsigned int def_i2c_bus;       // Default I2C bus
 688         unsigned int cur_i2c_bus;       // Current I2C bus
 689         struct rt_mutex i2c_bus_lock;
 690
 691         // video for linux
 692         unsigned int ctl_input; // selected input
 693         unsigned int ctl_ainput;// selected audio input
 694         unsigned int ctl_aoutput;// selected audio output
 695         int mute;
 696         int volume;
 697
 698         unsigned long hash;     // eeprom hash - for boards with generic ID
 699         unsigned long i2c_hash; // i2c devicelist hash -
 700                                 // for boards with generic ID
 701
 702         struct work_struct         request_module_wk;
 703
 704         // locks
 705         struct mutex lock;              /* protects em28xx struct */
 706         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 707
 708         // resources in use
 709         unsigned int resources;
 710
 711         // eeprom content
 712         u8 *eedata;
 713         u16 eedata_len;
 714
 715         // Isoc control struct
 716         struct em28xx_dmaqueue vidq;
 717         struct em28xx_dmaqueue vbiq;
 718         struct em28xx_usb_ctl usb_ctl;
 719
 720         spinlock_t slock; /* Protects em28xx video/vbi/dvb IRQ stream data */
 721
 722         // usb transfer
 723         struct usb_interface *intf;     // the usb interface
 724         u8 ifnum;               // number of the assigned usb interface
 725         u8 analog_ep_isoc;      // address of isoc endpoint for analog
 726         u8 analog_ep_bulk;      // address of bulk endpoint for analog
 727         u8 dvb_ep_isoc_ts2;     // address of isoc endpoint for DVB TS2
 728         u8 dvb_ep_bulk_ts2;     // address of bulk endpoint for DVB TS2
 729         u8 dvb_ep_isoc;         // address of isoc endpoint for DVB
 730         u8 dvb_ep_bulk;         // address of bulk endpoint for DVB
 731         int alt;                // alternate setting
 732         int max_pkt_size;       // max packet size of the selected ep at alt
 733         int packet_multiplier;  // multiplier for wMaxPacketSize, used for
 734                                 // URB buffer size definition
 735         int num_alt;            // number of alternative settings
 736         unsigned int *alt_max_pkt_size_isoc; // array of isoc wMaxPacketSize
 737         unsigned int analog_xfer_bulk:1;        // use bulk instead of isoc
 738                                                 // transfers for analog
 739         int dvb_alt_isoc;       // alternate setting for DVB isoc transfers
 740         unsigned int dvb_max_pkt_size_isoc;     // isoc max packet size of the
 741                                                 // selected DVB ep at dvb_alt
 742         unsigned int dvb_max_pkt_size_isoc_ts2; // isoc max packet size of the
 743                                                 // selected DVB ep at dvb_alt
 744         unsigned int dvb_xfer_bulk:1;           // use bulk instead of isoc
 745                                                 // transfers for DVB
 746         char urb_buf[URB_MAX_CTRL_SIZE];        // urb control msg buffer
 747
 748         // helper funcs that call usb_control_msg
 749         int (*em28xx_write_regs)(struct em28xx *dev, u16 reg,
 750                                  char *buf, int len);
 751         int (*em28xx_read_reg)(struct em28xx *dev, u16 reg);
 752         int (*em28xx_read_reg_req_len)(struct em28xx *dev, u8 req, u16 reg,
 753                                        char *buf, int len);
 754         int (*em28xx_write_regs_req)(struct em28xx *dev, u8 req, u16 reg,
 755                                      char *buf, int len);
 756         int (*em28xx_read_reg_req)(struct em28xx *dev, u8 req, u16 reg);
 757
 758         enum em28xx_mode mode;
 759
 760         // Button state polling
 761         struct delayed_work buttons_query_work;
 762         u8 button_polling_addresses[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
 763         u8 button_polling_last_values[EM28XX_NUM_BUTTON_ADDRESSES_MAX];
 764         u8 num_button_polling_addresses;
 765         u16 button_polling_interval; // [ms]
 766         // Snapshot button input device
 767         char snapshot_button_path[30];  // path of the input dev
 768         struct input_dev *sbutton_input_dev;
 769
 770 #ifdef CONFIG_MEDIA_CONTROLLER
 771         struct media_device *media_dev;
 772         struct media_entity input_ent[MAX_EM28XX_INPUT];
 773         struct media_pad input_pad[MAX_EM28XX_INPUT];
 774 #endif
 775
 776         struct em28xx   *dev_next;
 777         int ts;
 778 };
 779
 780 #define kref_to_dev(d) container_of(d, struct em28xx, ref)
 781
 782 struct em28xx_ops {
 783         struct list_head next;
 784         char *name;
 785         int id;
 786         int (*init)(struct em28xx *dev);
 787         int (*fini)(struct em28xx *dev);
 788         int (*suspend)(struct em28xx *dev);
 789         int (*resume)(struct em28xx *dev);
 790 };
 791
 792 /* Provided by em28xx-i2c.c */
 793 void em28xx_do_i2c_scan(struct em28xx *dev, unsigned int bus);
 794 int  em28xx_i2c_register(struct em28xx *dev, unsigned int bus,
 795                          enum em28xx_i2c_algo_type algo_type);
 796 int  em28xx_i2c_unregister(struct em28xx *dev, unsigned int bus);
 797
 798 /* Provided by em28xx-core.c */
 799 int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
 800                             char *buf, int len);
 801 int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
 802 int em28xx_read_reg(struct em28xx *dev, u16 reg);
 803 int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
 804                           int len);
 805 int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
 806 int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
 807 int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
 808                           u8 bitmask);
 809 int em28xx_toggle_reg_bits(struct em28xx *dev, u16 reg, u8 bitmask);
 810
 811 int em28xx_read_ac97(struct em28xx *dev, u8 reg);
 812 int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
 813
 814 int em28xx_audio_analog_set(struct em28xx *dev);
 815 int em28xx_audio_setup(struct em28xx *dev);
 816
 817 const struct em28xx_led *em28xx_find_led(struct em28xx *dev,
 818                                          enum em28xx_led_role role);
 819 int em28xx_capture_start(struct em28xx *dev, int start);
 820 int em28xx_alloc_urbs(struct em28xx *dev, enum em28xx_mode mode, int xfer_bulk,
 821                       int num_bufs, int max_pkt_size, int packet_multiplier);
 822 int em28xx_init_usb_xfer(struct em28xx *dev, enum em28xx_mode mode,
 823                          int xfer_bulk,
 824                          int num_bufs, int max_pkt_size, int packet_multiplier,
 825                          int (*urb_data_copy)
 826                                         (struct em28xx *dev, struct urb *urb));
 827 void em28xx_uninit_usb_xfer(struct em28xx *dev, enum em28xx_mode mode);
 828 void em28xx_stop_urbs(struct em28xx *dev);
 829 int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
 830 int em28xx_gpio_set(struct em28xx *dev, const struct em28xx_reg_seq *gpio);
 831 int em28xx_register_extension(struct em28xx_ops *dev);
 832 void em28xx_unregister_extension(struct em28xx_ops *dev);
 833 void em28xx_init_extension(struct em28xx *dev);
 834 void em28xx_close_extension(struct em28xx *dev);
 835 int em28xx_suspend_extension(struct em28xx *dev);
 836 int em28xx_resume_extension(struct em28xx *dev);
 837
 838 /* Provided by em28xx-cards.c */
 839 extern const struct em28xx_board em28xx_boards[];
 840 extern struct usb_device_id em28xx_id_table[];
 841 int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
 842 void em28xx_setup_xc3028(struct em28xx *dev, struct xc2028_ctrl *ctl);
 843 void em28xx_free_device(struct kref *ref);
 844
 845 /* Provided by em28xx-camera.c */
 846 int em28xx_detect_sensor(struct em28xx *dev);
 847 int em28xx_init_camera(struct em28xx *dev);
 848
 849 #endif