drivers/media/video/cx231xx/cx231xx.h

   1 /*
   2    cx231xx.h - driver for Conexant Cx23100/101/102 USB video capture devices
   3
   4    Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
   5         Based on em28xx driver
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #ifndef _CX231XX_H
  23 #define _CX231XX_H
  24
  25 #include <linux/videodev2.h>
  26 #include <linux/types.h>
  27 #include <linux/ioctl.h>
  28 #include <linux/i2c.h>
  29 #include <linux/i2c-algo-bit.h>
  30 #include <linux/mutex.h>
  31
  32
  33 #include <media/videobuf-vmalloc.h>
  34 #include <media/v4l2-device.h>
  35 #include <media/ir-kbd-i2c.h>
  36 #if defined(CONFIG_VIDEO_CX231XX_DVB) || \
  37         defined(CONFIG_VIDEO_CX231XX_DVB_MODULE)
  38 #include <media/videobuf-dvb.h>
  39 #endif
  40
  41 #include "cx231xx-reg.h"
  42 #include "cx231xx-pcb-cfg.h"
  43 #include "cx231xx-conf-reg.h"
  44
  45 #define DRIVER_NAME                     "cx231xx"
  46 #define PWR_SLEEP_INTERVAL              5
  47
  48 /* I2C addresses for control block in Cx231xx */
  49 #define     AFE_DEVICE_ADDRESS          0x60
  50 #define     I2S_BLK_DEVICE_ADDRESS      0x98
  51 #define     VID_BLK_I2C_ADDRESS         0x88
  52 #define     DIF_USE_BASEBAND            0xFFFFFFFF
  53
  54 /* Boards supported by driver */
  55 #define CX231XX_BOARD_UNKNOWN               0
  56 #define CX231XX_BOARD_CNXT_RDE_250      1
  57 #define CX231XX_BOARD_CNXT_RDU_250      2
  58
  59 /* Limits minimum and default number of buffers */
  60 #define CX231XX_MIN_BUF                 4
  61 #define CX231XX_DEF_BUF                 12
  62 #define CX231XX_DEF_VBI_BUF             6
  63
  64 #define VBI_LINE_COUNT                  17
  65 #define VBI_LINE_LENGTH                 1440
  66
  67 /*Limits the max URB message size */
  68 #define URB_MAX_CTRL_SIZE               80
  69
  70 /* Params for validated field */
  71 #define CX231XX_BOARD_NOT_VALIDATED     1
  72 #define CX231XX_BOARD_VALIDATED         0
  73
  74 /* maximum number of cx231xx boards */
  75 #define CX231XX_MAXBOARDS               8
  76
  77 /* maximum number of frames that can be queued */
  78 #define CX231XX_NUM_FRAMES              5
  79
  80 /* number of buffers for isoc transfers */
  81 #define CX231XX_NUM_BUFS                8
  82
  83 /* number of packets for each buffer
  84    windows requests only 40 packets .. so we better do the same
  85    this is what I found out for all alternate numbers there!
  86  */
  87 #define CX231XX_NUM_PACKETS             40
  88
  89 /* default alternate; 0 means choose the best */
  90 #define CX231XX_PINOUT                  0
  91
  92 #define CX231XX_INTERLACED_DEFAULT      1
  93
  94 /* time to wait when stopping the isoc transfer */
  95 #define CX231XX_URB_TIMEOUT             \
  96                 msecs_to_jiffies(CX231XX_NUM_BUFS * CX231XX_NUM_PACKETS)
  97
  98 enum cx231xx_mode {
  99         CX231XX_SUSPEND,
 100         CX231XX_ANALOG_MODE,
 101         CX231XX_DIGITAL_MODE,
 102 };
 103
 104 enum cx231xx_std_mode {
 105         CX231XX_TV_AIR = 0,
 106         CX231XX_TV_CABLE
 107 };
 108
 109 enum cx231xx_stream_state {
 110         STREAM_OFF,
 111         STREAM_INTERRUPT,
 112         STREAM_ON,
 113 };
 114
 115 struct cx231xx;
 116
 117 struct cx231xx_usb_isoc_ctl {
 118         /* max packet size of isoc transaction */
 119         int max_pkt_size;
 120
 121         /* number of allocated urbs */
 122         int num_bufs;
 123
 124         /* urb for isoc transfers */
 125         struct urb **urb;
 126
 127         /* transfer buffers for isoc transfer */
 128         char **transfer_buffer;
 129
 130         /* Last buffer command and region */
 131         u8 cmd;
 132         int pos, size, pktsize;
 133
 134         /* Last field: ODD or EVEN? */
 135         int field;
 136
 137         /* Stores incomplete commands */
 138         u32 tmp_buf;
 139         int tmp_buf_len;
 140
 141         /* Stores already requested buffers */
 142         struct cx231xx_buffer *buf;
 143
 144         /* Stores the number of received fields */
 145         int nfields;
 146
 147         /* isoc urb callback */
 148         int (*isoc_copy) (struct cx231xx *dev, struct urb *urb);
 149 };
 150
 151 struct cx231xx_fmt {
 152         char *name;
 153         u32 fourcc;             /* v4l2 format id */
 154         int depth;
 155         int reg;
 156 };
 157
 158 /* buffer for one video frame */
 159 struct cx231xx_buffer {
 160         /* common v4l buffer stuff -- must be first */
 161         struct videobuf_buffer vb;
 162
 163         struct list_head frame;
 164         int top_field;
 165         int receiving;
 166 };
 167
 168 struct cx231xx_dmaqueue {
 169         struct list_head active;
 170         struct list_head queued;
 171
 172         wait_queue_head_t wq;
 173
 174         /* Counters to control buffer fill */
 175         int pos;
 176         u8 is_partial_line;
 177         u8 partial_buf[8];
 178         u8 last_sav;
 179         int current_field;
 180         u32 bytes_left_in_line;
 181         u32 lines_completed;
 182         u8 field1_done;
 183         u32 lines_per_field;
 184 };
 185
 186 /* inputs */
 187
 188 #define MAX_CX231XX_INPUT               4
 189
 190 enum cx231xx_itype {
 191         CX231XX_VMUX_COMPOSITE1 = 1,
 192         CX231XX_VMUX_SVIDEO,
 193         CX231XX_VMUX_TELEVISION,
 194         CX231XX_VMUX_CABLE,
 195         CX231XX_RADIO,
 196         CX231XX_VMUX_DVB,
 197         CX231XX_VMUX_DEBUG
 198 };
 199
 200 enum cx231xx_v_input {
 201         CX231XX_VIN_1_1 = 0x1,
 202         CX231XX_VIN_2_1,
 203         CX231XX_VIN_3_1,
 204         CX231XX_VIN_4_1,
 205         CX231XX_VIN_1_2 = 0x01,
 206         CX231XX_VIN_2_2,
 207         CX231XX_VIN_3_2,
 208         CX231XX_VIN_1_3 = 0x1,
 209         CX231XX_VIN_2_3,
 210         CX231XX_VIN_3_3,
 211 };
 212
 213 /* cx231xx has two audio inputs: tuner and line in */
 214 enum cx231xx_amux {
 215         /* This is the only entry for cx231xx tuner input */
 216         CX231XX_AMUX_VIDEO,     /* cx231xx tuner */
 217         CX231XX_AMUX_LINE_IN,   /* Line In */
 218 };
 219
 220 struct cx231xx_reg_seq {
 221         unsigned char bit;
 222         unsigned char val;
 223         int sleep;
 224 };
 225
 226 struct cx231xx_input {
 227         enum cx231xx_itype type;
 228         unsigned int vmux;
 229         enum cx231xx_amux amux;
 230         struct cx231xx_reg_seq *gpio;
 231 };
 232
 233 #define INPUT(nr) (&cx231xx_boards[dev->model].input[nr])
 234
 235 enum cx231xx_decoder {
 236         CX231XX_NODECODER,
 237         CX231XX_AVDECODER
 238 };
 239
 240 enum CX231XX_I2C_MASTER_PORT {
 241         I2C_0 = 0,
 242         I2C_1 = 1,
 243         I2C_2 = 2,
 244         I2C_3 = 3
 245 };
 246
 247 struct cx231xx_board {
 248         char *name;
 249         int vchannels;
 250         int tuner_type;
 251         int tuner_addr;
 252         v4l2_std_id norm;       /* tv norm */
 253
 254         /* demod related */
 255         int demod_addr;
 256         u8 demod_xfer_mode;     /* 0 - Serial; 1 - parallel */
 257
 258         /* GPIO Pins */
 259         struct cx231xx_reg_seq *dvb_gpio;
 260         struct cx231xx_reg_seq *suspend_gpio;
 261         struct cx231xx_reg_seq *tuner_gpio;
 262         u8 tuner_sif_gpio;
 263         u8 tuner_scl_gpio;
 264         u8 tuner_sda_gpio;
 265
 266         /* PIN ctrl */
 267         u32 ctl_pin_status_mask;
 268         u8 agc_analog_digital_select_gpio;
 269         u32 gpio_pin_status_mask;
 270
 271         /* i2c masters */
 272         u8 tuner_i2c_master;
 273         u8 demod_i2c_master;
 274
 275         unsigned int max_range_640_480:1;
 276         unsigned int has_dvb:1;
 277         unsigned int valid:1;
 278
 279         unsigned char xclk, i2c_speed;
 280
 281         enum cx231xx_decoder decoder;
 282
 283         struct cx231xx_input input[MAX_CX231XX_INPUT];
 284         struct cx231xx_input radio;
 285         struct ir_scancode_table *ir_codes;
 286 };
 287
 288 /* device states */
 289 enum cx231xx_dev_state {
 290         DEV_INITIALIZED = 0x01,
 291         DEV_DISCONNECTED = 0x02,
 292         DEV_MISCONFIGURED = 0x04,
 293 };
 294
 295 enum AFE_MODE {
 296         AFE_MODE_LOW_IF,
 297         AFE_MODE_BASEBAND,
 298         AFE_MODE_EU_HI_IF,
 299         AFE_MODE_US_HI_IF,
 300         AFE_MODE_JAPAN_HI_IF
 301 };
 302
 303 enum AUDIO_INPUT {
 304         AUDIO_INPUT_MUTE,
 305         AUDIO_INPUT_LINE,
 306         AUDIO_INPUT_TUNER_TV,
 307         AUDIO_INPUT_SPDIF,
 308         AUDIO_INPUT_TUNER_FM
 309 };
 310
 311 #define CX231XX_AUDIO_BUFS              5
 312 #define CX231XX_NUM_AUDIO_PACKETS       64
 313 #define CX231XX_CAPTURE_STREAM_EN       1
 314 #define CX231XX_STOP_AUDIO              0
 315 #define CX231XX_START_AUDIO             1
 316
 317 /* cx231xx extensions */
 318 #define CX231XX_AUDIO                   0x10
 319 #define CX231XX_DVB                     0x20
 320
 321 struct cx231xx_audio {
 322         char name[50];
 323         char *transfer_buffer[CX231XX_AUDIO_BUFS];
 324         struct urb *urb[CX231XX_AUDIO_BUFS];
 325         struct usb_device *udev;
 326         unsigned int capture_transfer_done;
 327         struct snd_pcm_substream *capture_pcm_substream;
 328
 329         unsigned int hwptr_done_capture;
 330         struct snd_card *sndcard;
 331
 332         int users, shutdown;
 333         enum cx231xx_stream_state capture_stream;
 334         spinlock_t slock;
 335
 336         int alt;                /* alternate */
 337         int max_pkt_size;       /* max packet size of isoc transaction */
 338         int num_alt;            /* Number of alternative settings */
 339         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 340         u16 end_point_addr;
 341 };
 342
 343 struct cx231xx;
 344
 345 struct cx231xx_fh {
 346         struct cx231xx *dev;
 347         unsigned int stream_on:1;       /* Locks streams */
 348         int radio;
 349
 350         struct videobuf_queue vb_vidq;
 351
 352         enum v4l2_buf_type type;
 353 };
 354
 355 /*****************************************************************/
 356 /* set/get i2c */
 357 /* 00--1Mb/s, 01-400kb/s, 10--100kb/s, 11--5Mb/s */
 358 #define I2C_SPEED_1M            0x0
 359 #define I2C_SPEED_400K          0x1
 360 #define I2C_SPEED_100K          0x2
 361 #define I2C_SPEED_5M            0x3
 362
 363 /* 0-- STOP transaction */
 364 #define I2C_STOP                0x0
 365 /* 1-- do not transmit STOP at end of transaction */
 366 #define I2C_NOSTOP              0x1
 367 /* 1--alllow slave to insert clock wait states */
 368 #define I2C_SYNC                0x1
 369
 370 struct cx231xx_i2c {
 371         struct cx231xx *dev;
 372
 373         int nr;
 374
 375         /* i2c i/o */
 376         struct i2c_adapter i2c_adap;
 377         struct i2c_algo_bit_data i2c_algo;
 378         struct i2c_client i2c_client;
 379         u32 i2c_rc;
 380
 381         /* different settings for each bus */
 382         u8 i2c_period;
 383         u8 i2c_nostop;
 384         u8 i2c_reserve;
 385 };
 386
 387 struct cx231xx_i2c_xfer_data {
 388         u8 dev_addr;
 389         u8 direction;           /* 1 - IN, 0 - OUT */
 390         u8 saddr_len;           /* sub address len */
 391         u16 saddr_dat;          /* sub addr data */
 392         u8 buf_size;            /* buffer size */
 393         u8 *p_buffer;           /* pointer to the buffer */
 394 };
 395
 396 struct VENDOR_REQUEST_IN {
 397         u8 bRequest;
 398         u16 wValue;
 399         u16 wIndex;
 400         u16 wLength;
 401         u8 direction;
 402         u8 bData;
 403         u8 *pBuff;
 404 };
 405
 406 struct cx231xx_ctrl {
 407         struct v4l2_queryctrl v;
 408         u32 off;
 409         u32 reg;
 410         u32 mask;
 411         u32 shift;
 412 };
 413
 414 enum TRANSFER_TYPE {
 415         Raw_Video = 0,
 416         Audio,
 417         Vbi,                    /* VANC */
 418         Sliced_cc,              /* HANC */
 419         TS1_serial_mode,
 420         TS2,
 421         TS1_parallel_mode
 422 } ;
 423
 424 struct cx231xx_video_mode {
 425         /* Isoc control struct */
 426         struct cx231xx_dmaqueue vidq;
 427         struct cx231xx_usb_isoc_ctl isoc_ctl;
 428         spinlock_t slock;
 429
 430         /* usb transfer */
 431         int alt;                /* alternate */
 432         int max_pkt_size;       /* max packet size of isoc transaction */
 433         int num_alt;            /* Number of alternative settings */
 434         unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */
 435         u16 end_point_addr;
 436 };
 437
 438 /* main device struct */
 439 struct cx231xx {
 440         /* generic device properties */
 441         char name[30];          /* name (including minor) of the device */
 442         int model;              /* index in the device_data struct */
 443         int devno;              /* marks the number of this device */
 444
 445         struct cx231xx_board board;
 446
 447         unsigned int stream_on:1;       /* Locks streams */
 448         unsigned int vbi_stream_on:1;   /* Locks streams for VBI */
 449         unsigned int has_audio_class:1;
 450         unsigned int has_alsa_audio:1;
 451
 452         struct cx231xx_fmt *format;
 453
 454         struct v4l2_device v4l2_dev;
 455         struct v4l2_subdev *sd_cx25840;
 456         struct v4l2_subdev *sd_tuner;
 457
 458         struct cx231xx_IR *ir;
 459
 460         struct list_head devlist;
 461
 462         int tuner_type;         /* type of the tuner */
 463         int tuner_addr;         /* tuner address */
 464
 465         /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 466         struct cx231xx_i2c i2c_bus[3];
 467         unsigned int xc_fw_load_done:1;
 468         struct mutex gpio_i2c_lock;
 469
 470         /* video for linux */
 471         int users;              /* user count for exclusive use */
 472         struct video_device *vdev;      /* video for linux device struct */
 473         v4l2_std_id norm;       /* selected tv norm */
 474         int ctl_freq;           /* selected frequency */
 475         unsigned int ctl_ainput;        /* selected audio input */
 476         int mute;
 477         int volume;
 478
 479         /* frame properties */
 480         int width;              /* current frame width */
 481         int height;             /* current frame height */
 482         unsigned hscale;        /* horizontal scale factor (see datasheet) */
 483         unsigned vscale;        /* vertical scale factor (see datasheet) */
 484         int interlaced;         /* 1=interlace fileds, 0=just top fileds */
 485
 486         struct cx231xx_audio adev;
 487
 488         /* states */
 489         enum cx231xx_dev_state state;
 490
 491         struct work_struct request_module_wk;
 492
 493         /* locks */
 494         struct mutex lock;
 495         struct mutex ctrl_urb_lock;     /* protects urb_buf */
 496         struct list_head inqueue, outqueue;
 497         wait_queue_head_t open, wait_frame, wait_stream;
 498         struct video_device *vbi_dev;
 499         struct video_device *radio_dev;
 500
 501         unsigned char eedata[256];
 502
 503         struct cx231xx_video_mode video_mode;
 504         struct cx231xx_video_mode vbi_mode;
 505         struct cx231xx_video_mode sliced_cc_mode;
 506         struct cx231xx_video_mode ts1_mode;
 507
 508         struct usb_device *udev;        /* the usb device */
 509         char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */
 510
 511         /* helper funcs that call usb_control_msg */
 512         int (*cx231xx_read_ctrl_reg) (struct cx231xx *dev, u8 req, u16 reg,
 513                                       char *buf, int len);
 514         int (*cx231xx_write_ctrl_reg) (struct cx231xx *dev, u8 req, u16 reg,
 515                                        char *buf, int len);
 516         int (*cx231xx_send_usb_command) (struct cx231xx_i2c *i2c_bus,
 517                                 struct cx231xx_i2c_xfer_data *req_data);
 518         int (*cx231xx_gpio_i2c_read) (struct cx231xx *dev, u8 dev_addr,
 519                                       u8 *buf, u8 len);
 520         int (*cx231xx_gpio_i2c_write) (struct cx231xx *dev, u8 dev_addr,
 521                                        u8 *buf, u8 len);
 522
 523         int (*cx231xx_set_analog_freq) (struct cx231xx *dev, u32 freq);
 524         int (*cx231xx_reset_analog_tuner) (struct cx231xx *dev);
 525
 526         enum cx231xx_mode mode;
 527
 528         struct cx231xx_dvb *dvb;
 529
 530         /* Cx231xx supported PCB config's */
 531         struct pcb_config current_pcb_config;
 532         u8 current_scenario_idx;
 533         u8 interface_count;
 534         u8 max_iad_interface_count;
 535
 536         /* GPIO related register direction and values */
 537         u32 gpio_dir;
 538         u32 gpio_val;
 539
 540         /* Power Modes */
 541         int power_mode;
 542
 543         /* afe parameters */
 544         enum AFE_MODE afe_mode;
 545         u32 afe_ref_count;
 546
 547         /* video related parameters */
 548         u32 video_input;
 549         u32 active_mode;
 550         u8 vbi_or_sliced_cc_mode;       /* 0 - vbi ; 1 - sliced cc mode */
 551         enum cx231xx_std_mode std_mode; /* 0 - Air; 1 - cable */
 552
 553 };
 554
 555 #define cx25840_call(cx231xx, o, f, args...) \
 556         v4l2_subdev_call(cx231xx->sd_cx25840, o, f, ##args)
 557 #define tuner_call(cx231xx, o, f, args...) \
 558         v4l2_subdev_call(cx231xx->sd_tuner, o, f, ##args)
 559 #define call_all(dev, o, f, args...) \
 560         v4l2_device_call_until_err(&dev->v4l2_dev, 0, o, f, ##args)
 561
 562 struct cx231xx_ops {
 563         struct list_head next;
 564         char *name;
 565         int id;
 566         int (*init) (struct cx231xx *);
 567         int (*fini) (struct cx231xx *);
 568 };
 569
 570 /* call back functions in dvb module */
 571 int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq);
 572 int cx231xx_reset_analog_tuner(struct cx231xx *dev);
 573
 574 /* Provided by cx231xx-i2c.c */
 575 void cx231xx_do_i2c_scan(struct cx231xx *dev, struct i2c_client *c);
 576 int cx231xx_i2c_register(struct cx231xx_i2c *bus);
 577 int cx231xx_i2c_unregister(struct cx231xx_i2c *bus);
 578
 579 /* Internal block control functions */
 580 int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr,
 581                           u16 saddr, u8 saddr_len, u32 *data, u8 data_len);
 582 int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr,
 583                            u16 saddr, u8 saddr_len, u32 data, u8 data_len);
 584 int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
 585                            u16 register_address, u8 bit_start, u8 bit_end,
 586                            u32 value);
 587 int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
 588                                         u16 saddr, u32 mask, u32 value);
 589 u32 cx231xx_set_field(u32 field_mask, u32 data);
 590
 591 /* afe related functions */
 592 int cx231xx_afe_init_super_block(struct cx231xx *dev, u32 ref_count);
 593 int cx231xx_afe_init_channels(struct cx231xx *dev);
 594 int cx231xx_afe_setup_AFE_for_baseband(struct cx231xx *dev);
 595 int cx231xx_afe_set_input_mux(struct cx231xx *dev, u32 input_mux);
 596 int cx231xx_afe_set_mode(struct cx231xx *dev, enum AFE_MODE mode);
 597 int cx231xx_afe_update_power_control(struct cx231xx *dev,
 598                                         enum AV_MODE avmode);
 599 int cx231xx_afe_adjust_ref_count(struct cx231xx *dev, u32 video_input);
 600
 601 /* i2s block related functions */
 602 int cx231xx_i2s_blk_initialize(struct cx231xx *dev);
 603 int cx231xx_i2s_blk_update_power_control(struct cx231xx *dev,
 604                                         enum AV_MODE avmode);
 605 int cx231xx_i2s_blk_set_audio_input(struct cx231xx *dev, u8 audio_input);
 606
 607 /* DIF related functions */
 608 int cx231xx_dif_configure_C2HH_for_low_IF(struct cx231xx *dev, u32 mode,
 609                                           u32 function_mode, u32 standard);
 610 int cx231xx_dif_set_standard(struct cx231xx *dev, u32 standard);
 611 int cx231xx_tuner_pre_channel_change(struct cx231xx *dev);
 612 int cx231xx_tuner_post_channel_change(struct cx231xx *dev);
 613
 614 /* video parser functions */
 615 u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size,
 616                              u32 *p_bytes_used);
 617 u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
 618                                  u32 *p_bytes_used);
 619 int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 620                     u8 *p_buffer, u32 bytes_to_copy);
 621 void cx231xx_reset_video_buffer(struct cx231xx *dev,
 622                                 struct cx231xx_dmaqueue *dma_q);
 623 u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q);
 624 u32 cx231xx_copy_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 625                             u8 *p_line, u32 length, int field_number);
 626 u32 cx231xx_get_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
 627                            u8 sav_eav, u8 *p_buffer, u32 buffer_size);
 628 void cx231xx_swab(u16 *from, u16 *to, u16 len);
 629
 630 /* Provided by cx231xx-core.c */
 631
 632 u32 cx231xx_request_buffers(struct cx231xx *dev, u32 count);
 633 void cx231xx_queue_unusedframes(struct cx231xx *dev);
 634 void cx231xx_release_buffers(struct cx231xx *dev);
 635
 636 /* read from control pipe */
 637 int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 638                           char *buf, int len);
 639
 640 /* write to control pipe */
 641 int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
 642                            char *buf, int len);
 643 int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode);
 644
 645 int cx231xx_send_vendor_cmd(struct cx231xx *dev,
 646                                 struct VENDOR_REQUEST_IN *ven_req);
 647 int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
 648                                 struct cx231xx_i2c_xfer_data *req_data);
 649
 650 /* Gpio related functions */
 651 int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
 652                           u8 len, u8 request, u8 direction);
 653 int cx231xx_set_gpio_bit(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val);
 654 int cx231xx_get_gpio_bit(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val);
 655 int cx231xx_set_gpio_value(struct cx231xx *dev, int pin_number, int pin_value);
 656 int cx231xx_set_gpio_direction(struct cx231xx *dev, int pin_number,
 657                                int pin_value);
 658
 659 int cx231xx_gpio_i2c_start(struct cx231xx *dev);
 660 int cx231xx_gpio_i2c_end(struct cx231xx *dev);
 661 int cx231xx_gpio_i2c_write_byte(struct cx231xx *dev, u8 data);
 662 int cx231xx_gpio_i2c_read_byte(struct cx231xx *dev, u8 *buf);
 663 int cx231xx_gpio_i2c_read_ack(struct cx231xx *dev);
 664 int cx231xx_gpio_i2c_write_ack(struct cx231xx *dev);
 665 int cx231xx_gpio_i2c_write_nak(struct cx231xx *dev);
 666
 667 int cx231xx_gpio_i2c_read(struct cx231xx *dev, u8 dev_addr, u8 *buf, u8 len);
 668 int cx231xx_gpio_i2c_write(struct cx231xx *dev, u8 dev_addr, u8 *buf, u8 len);
 669
 670 /* audio related functions */
 671 int cx231xx_set_audio_decoder_input(struct cx231xx *dev,
 672                                     enum AUDIO_INPUT audio_input);
 673
 674 int cx231xx_capture_start(struct cx231xx *dev, int start, u8 media_type);
 675 int cx231xx_resolution_set(struct cx231xx *dev);
 676 int cx231xx_set_video_alternate(struct cx231xx *dev);
 677 int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt);
 678 int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
 679                       int num_bufs, int max_pkt_size,
 680                       int (*isoc_copy) (struct cx231xx *dev,
 681                                         struct urb *urb));
 682 void cx231xx_uninit_isoc(struct cx231xx *dev);
 683 int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode);
 684 int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio);
 685
 686 /* Device list functions */
 687 void cx231xx_release_resources(struct cx231xx *dev);
 688 void cx231xx_release_analog_resources(struct cx231xx *dev);
 689 int cx231xx_register_analog_devices(struct cx231xx *dev);
 690 void cx231xx_remove_from_devlist(struct cx231xx *dev);
 691 void cx231xx_add_into_devlist(struct cx231xx *dev);
 692 void cx231xx_init_extension(struct cx231xx *dev);
 693 void cx231xx_close_extension(struct cx231xx *dev);
 694
 695 /* hardware init functions */
 696 int cx231xx_dev_init(struct cx231xx *dev);
 697 void cx231xx_dev_uninit(struct cx231xx *dev);
 698 void cx231xx_config_i2c(struct cx231xx *dev);
 699 int cx231xx_config(struct cx231xx *dev);
 700
 701 /* Stream control functions */
 702 int cx231xx_start_stream(struct cx231xx *dev, u32 ep_mask);
 703 int cx231xx_stop_stream(struct cx231xx *dev, u32 ep_mask);
 704
 705 int cx231xx_initialize_stream_xfer(struct cx231xx *dev, u32 media_type);
 706
 707 /* Power control functions */
 708 int cx231xx_set_power_mode(struct cx231xx *dev, enum AV_MODE mode);
 709 int cx231xx_power_suspend(struct cx231xx *dev);
 710
 711 /* chip specific control functions */
 712 int cx231xx_init_ctrl_pin_status(struct cx231xx *dev);
 713 int cx231xx_set_agc_analog_digital_mux_select(struct cx231xx *dev,
 714                                               u8 analog_or_digital);
 715 int cx231xx_enable_i2c_for_tuner(struct cx231xx *dev, u8 I2CIndex);
 716
 717 /* video audio decoder related functions */
 718 void video_mux(struct cx231xx *dev, int index);
 719 int cx231xx_set_video_input_mux(struct cx231xx *dev, u8 input);
 720 int cx231xx_set_decoder_video_input(struct cx231xx *dev, u8 pin_type, u8 input);
 721 int cx231xx_do_mode_ctrl_overrides(struct cx231xx *dev);
 722 int cx231xx_set_audio_input(struct cx231xx *dev, u8 input);
 723
 724 /* Provided by cx231xx-video.c */
 725 int cx231xx_register_extension(struct cx231xx_ops *dev);
 726 void cx231xx_unregister_extension(struct cx231xx_ops *dev);
 727 void cx231xx_init_extension(struct cx231xx *dev);
 728 void cx231xx_close_extension(struct cx231xx *dev);
 729
 730 /* Provided by cx231xx-cards.c */
 731 extern void cx231xx_pre_card_setup(struct cx231xx *dev);
 732 extern void cx231xx_card_setup(struct cx231xx *dev);
 733 extern struct cx231xx_board cx231xx_boards[];
 734 extern struct usb_device_id cx231xx_id_table[];
 735 extern const unsigned int cx231xx_bcount;
 736 void cx231xx_register_i2c_ir(struct cx231xx *dev);
 737 int cx231xx_tuner_callback(void *ptr, int component, int command, int arg);
 738
 739 /* Provided by cx231xx-input.c */
 740 int cx231xx_ir_init(struct cx231xx *dev);
 741 int cx231xx_ir_fini(struct cx231xx *dev);
 742
 743 /* printk macros */
 744
 745 #define cx231xx_err(fmt, arg...) do {\
 746         printk(KERN_ERR fmt , ##arg); } while (0)
 747
 748 #define cx231xx_errdev(fmt, arg...) do {\
 749         printk(KERN_ERR "%s: "fmt,\
 750                         dev->name , ##arg); } while (0)
 751
 752 #define cx231xx_info(fmt, arg...) do {\
 753         printk(KERN_INFO "%s: "fmt,\
 754                         dev->name , ##arg); } while (0)
 755 #define cx231xx_warn(fmt, arg...) do {\
 756         printk(KERN_WARNING "%s: "fmt,\
 757                         dev->name , ##arg); } while (0)
 758
 759 static inline unsigned int norm_maxw(struct cx231xx *dev)
 760 {
 761         if (dev->board.max_range_640_480)
 762                 return 640;
 763         else
 764                 return 720;
 765 }
 766
 767 static inline unsigned int norm_maxh(struct cx231xx *dev)
 768 {
 769         if (dev->board.max_range_640_480)
 770                 return 480;
 771         else
 772                 return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
 773 }
 774 #endif