LXR linux/drivers/media/pci/saa7164/saa7164.h

   1/*
   2 *  Driver for the NXP SAA7164 PCIe bridge
   3 *
   4 *  Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
   5 *
   6 *  This program is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License as published by
   8 *  the Free Software Foundation; either version 2 of the License, or
   9 *  (at your option) any later version.
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *
  15 *  GNU General Public License for more details.
  16 */
  17
  18/*
  19        Driver architecture
  20        *******************
  21
  22        saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
  23                |       : Standard Linux driver framework for creating
  24                |       : exposing and managing interfaces to the rest
  25                |       : of the kernel or userland. Also uses _fw.c to load
  26                |       : firmware direct into the PCIe bus, bypassing layers.
  27                V
  28        saa7164_api..() : Translate kernel specific functions/features
  29                |       : into command buffers.
  30                V
  31        saa7164_cmd..() : Manages the flow of command packets on/off,
  32                |       : the bus. Deal with bus errors, timeouts etc.
  33                V
  34        saa7164_bus..() : Manage a read/write memory ring buffer in the
  35                |       : PCIe Address space.
  36                |
  37                |               saa7164_fw...() : Load any frimware
  38                |                       |       : direct into the device
  39                V                       V
  40        <- ----------------- PCIe address space -------------------- ->
  41*/
  42
  43#include <linux/pci.h>
  44#include <linux/i2c.h>
  45#include <linux/kdev_t.h>
  46#include <linux/mutex.h>
  47#include <linux/crc32.h>
  48#include <linux/kthread.h>
  49#include <linux/freezer.h>
  50
  51#include <media/tuner.h>
  52#include <media/tveeprom.h>
  53#include <media/dvb_demux.h>
  54#include <media/dvb_frontend.h>
  55#include <media/dvb_net.h>
  56#include <media/dvbdev.h>
  57#include <media/dmxdev.h>
  58#include <media/v4l2-common.h>
  59#include <media/v4l2-ioctl.h>
  60#include <media/v4l2-device.h>
  61#include <media/v4l2-ctrls.h>
  62#include <media/v4l2-event.h>
  63
  64#include "saa7164-reg.h"
  65#include "saa7164-types.h"
  66
  67#define SAA7164_MAXBOARDS 8
  68
  69#define UNSET (-1U)
  70#define SAA7164_BOARD_NOAUTO                    UNSET
  71#define SAA7164_BOARD_UNKNOWN                   0
  72#define SAA7164_BOARD_UNKNOWN_REV2              1
  73#define SAA7164_BOARD_UNKNOWN_REV3              2
  74#define SAA7164_BOARD_HAUPPAUGE_HVR2250         3
  75#define SAA7164_BOARD_HAUPPAUGE_HVR2200         4
  76#define SAA7164_BOARD_HAUPPAUGE_HVR2200_2       5
  77#define SAA7164_BOARD_HAUPPAUGE_HVR2200_3       6
  78#define SAA7164_BOARD_HAUPPAUGE_HVR2250_2       7
  79#define SAA7164_BOARD_HAUPPAUGE_HVR2250_3       8
  80#define SAA7164_BOARD_HAUPPAUGE_HVR2200_4       9
  81#define SAA7164_BOARD_HAUPPAUGE_HVR2200_5       10
  82#define SAA7164_BOARD_HAUPPAUGE_HVR2255proto    11
  83#define SAA7164_BOARD_HAUPPAUGE_HVR2255         12
  84#define SAA7164_BOARD_HAUPPAUGE_HVR2205         13
  85
  86#define SAA7164_MAX_UNITS               8
  87#define SAA7164_TS_NUMBER_OF_LINES      312
  88#define SAA7164_PS_NUMBER_OF_LINES      256
  89#define SAA7164_PT_ENTRIES              16 /* (312 * 188) / 4096 */
  90#define SAA7164_MAX_ENCODER_BUFFERS     64 /* max 5secs of latency at 6Mbps */
  91#define SAA7164_MAX_VBI_BUFFERS         64
  92
  93/* Port related defines */
  94#define SAA7164_PORT_TS1        (0)
  95#define SAA7164_PORT_TS2        (SAA7164_PORT_TS1 + 1)
  96#define SAA7164_PORT_ENC1       (SAA7164_PORT_TS2 + 1)
  97#define SAA7164_PORT_ENC2       (SAA7164_PORT_ENC1 + 1)
  98#define SAA7164_PORT_VBI1       (SAA7164_PORT_ENC2 + 1)
  99#define SAA7164_PORT_VBI2       (SAA7164_PORT_VBI1 + 1)
 100#define SAA7164_MAX_PORTS       (SAA7164_PORT_VBI2 + 1)
 101
 102#define DBGLVL_FW    4
 103#define DBGLVL_DVB   8
 104#define DBGLVL_I2C  16
 105#define DBGLVL_API  32
 106#define DBGLVL_CMD  64
 107#define DBGLVL_BUS 128
 108#define DBGLVL_IRQ 256
 109#define DBGLVL_BUF 512
 110#define DBGLVL_ENC 1024
 111#define DBGLVL_VBI 2048
 112#define DBGLVL_THR 4096
 113#define DBGLVL_CPU 8192
 114
 115#define SAA7164_NORMS \
 116        (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP)
 117
 118/* TV frequency range copied from tuner-core.c */
 119#define SAA7164_TV_MIN_FREQ (44U * 16U)
 120#define SAA7164_TV_MAX_FREQ (958U * 16U)
 121
 122enum port_t {
 123        SAA7164_MPEG_UNDEFINED = 0,
 124        SAA7164_MPEG_DVB,
 125        SAA7164_MPEG_ENCODER,
 126        SAA7164_MPEG_VBI,
 127};
 128
 129enum saa7164_i2c_bus_nr {
 130        SAA7164_I2C_BUS_0 = 0,
 131        SAA7164_I2C_BUS_1,
 132        SAA7164_I2C_BUS_2,
 133};
 134
 135enum saa7164_buffer_flags {
 136        SAA7164_BUFFER_UNDEFINED = 0,
 137        SAA7164_BUFFER_FREE,
 138        SAA7164_BUFFER_BUSY,
 139        SAA7164_BUFFER_FULL
 140};
 141
 142enum saa7164_unit_type {
 143        SAA7164_UNIT_UNDEFINED = 0,
 144        SAA7164_UNIT_DIGITAL_DEMODULATOR,
 145        SAA7164_UNIT_ANALOG_DEMODULATOR,
 146        SAA7164_UNIT_TUNER,
 147        SAA7164_UNIT_EEPROM,
 148        SAA7164_UNIT_ZILOG_IRBLASTER,
 149        SAA7164_UNIT_ENCODER,
 150};
 151
 152/* The PCIe bridge doesn't grant direct access to i2c.
 153 * Instead, you address i2c devices using a uniqely
 154 * allocated 'unitid' value via a messaging API. This
 155 * is a problem. The kernel and existing demod/tuner
 156 * drivers expect to talk 'i2c', so we have to maintain
 157 * a translation layer, and a series of functions to
 158 * convert i2c bus + device address into a unit id.
 159 */
 160struct saa7164_unit {
 161        enum saa7164_unit_type type;
 162        u8      id;
 163        char    *name;
 164        enum saa7164_i2c_bus_nr i2c_bus_nr;
 165        u8      i2c_bus_addr;
 166        u8      i2c_reg_len;
 167};
 168
 169struct saa7164_board {
 170        char    *name;
 171        enum port_t porta, portb, portc,
 172                portd, porte, portf;
 173        enum {
 174                SAA7164_CHIP_UNDEFINED = 0,
 175                SAA7164_CHIP_REV2,
 176                SAA7164_CHIP_REV3,
 177        } chiprev;
 178        struct  saa7164_unit unit[SAA7164_MAX_UNITS];
 179};
 180
 181struct saa7164_subid {
 182        u16     subvendor;
 183        u16     subdevice;
 184        u32     card;
 185};
 186
 187struct saa7164_encoder_fh {
 188        struct v4l2_fh fh;
 189        struct saa7164_port *port;
 190        atomic_t v4l_reading;
 191};
 192
 193struct saa7164_vbi_fh {
 194        struct v4l2_fh fh;
 195        struct saa7164_port *port;
 196        atomic_t v4l_reading;
 197};
 198
 199struct saa7164_histogram_bucket {
 200        u32 val;
 201        u32 count;
 202        u64 update_time;
 203};
 204
 205struct saa7164_histogram {
 206        char name[32];
 207        struct saa7164_histogram_bucket counter1[64];
 208};
 209
 210struct saa7164_user_buffer {
 211        struct list_head list;
 212
 213        /* Attributes */
 214        u8  *data;
 215        u32 pos;
 216        u32 actual_size;
 217
 218        u32 crc;
 219};
 220
 221struct saa7164_fw_status {
 222
 223        /* RISC Core details */
 224        u32     status;
 225        u32     mode;
 226        u32     spec;
 227        u32     inst;
 228        u32     cpuload;
 229        u32     remainheap;
 230
 231        /* Firmware version */
 232        u32     version;
 233        u32     major;
 234        u32     sub;
 235        u32     rel;
 236        u32     buildnr;
 237};
 238
 239struct saa7164_dvb {
 240        struct mutex lock;
 241        struct dvb_adapter adapter;
 242        struct dvb_frontend *frontend;
 243        struct dvb_demux demux;
 244        struct dmxdev dmxdev;
 245        struct dmx_frontend fe_hw;
 246        struct dmx_frontend fe_mem;
 247        struct dvb_net net;
 248        int feeding;
 249};
 250
 251struct saa7164_i2c {
 252        struct saa7164_dev              *dev;
 253
 254        enum saa7164_i2c_bus_nr         nr;
 255
 256        /* I2C I/O */
 257        struct i2c_adapter              i2c_adap;
 258        struct i2c_client               i2c_client;
 259        u32                             i2c_rc;
 260};
 261
 262struct saa7164_tvnorm {
 263        char            *name;
 264        v4l2_std_id     id;
 265};
 266
 267struct saa7164_encoder_params {
 268        struct saa7164_tvnorm encodernorm;
 269        u32 height;
 270        u32 width;
 271        u32 is_50hz;
 272        u32 bitrate; /* bps */
 273        u32 bitrate_peak; /* bps */
 274        u32 bitrate_mode;
 275        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 276
 277        u32 audio_sampling_freq;
 278        u32 ctl_mute;
 279        u32 ctl_aspect;
 280        u32 refdist;
 281        u32 gop_size;
 282};
 283
 284struct saa7164_vbi_params {
 285        struct saa7164_tvnorm encodernorm;
 286        u32 height;
 287        u32 width;
 288        u32 is_50hz;
 289        u32 bitrate; /* bps */
 290        u32 bitrate_peak; /* bps */
 291        u32 bitrate_mode;
 292        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 293
 294        u32 audio_sampling_freq;
 295        u32 ctl_mute;
 296        u32 ctl_aspect;
 297        u32 refdist;
 298        u32 gop_size;
 299};
 300
 301struct saa7164_port;
 302
 303struct saa7164_buffer {
 304        struct list_head list;
 305
 306        /* Note of which h/w buffer list index position we occupy */
 307        int idx;
 308
 309        struct saa7164_port *port;
 310
 311        /* Hardware Specific */
 312        /* PCI Memory allocations */
 313        enum saa7164_buffer_flags flags; /* Free, Busy, Full */
 314
 315        /* A block of page align PCI memory */
 316        u32 pci_size;   /* PCI allocation size in bytes */
 317        u64 *cpu;       /* Virtual address */
 318        dma_addr_t dma; /* Physical address */
 319        u32 crc;        /* Checksum for the entire buffer data */
 320
 321        /* A page table that splits the block into a number of entries */
 322        u32 pt_size;            /* PCI allocation size in bytes */
 323        u64 *pt_cpu;            /* Virtual address */
 324        dma_addr_t pt_dma;      /* Physical address */
 325
 326        /* Encoder fops */
 327        u32 pos;
 328        u32 actual_size;
 329};
 330
 331struct saa7164_port {
 332
 333        struct saa7164_dev *dev;
 334        enum port_t type;
 335        int nr;
 336
 337        /* --- Generic port attributes --- */
 338
 339        /* HW stream parameters */
 340        struct tmHWStreamParameters hw_streamingparams;
 341
 342        /* DMA configuration values, is seeded during initialization */
 343        struct tmComResDMATermDescrHeader hwcfg;
 344
 345        /* hardware specific registers */
 346        u32 bufcounter;
 347        u32 pitch;
 348        u32 bufsize;
 349        u32 bufoffset;
 350        u32 bufptr32l;
 351        u32 bufptr32h;
 352        u64 bufptr64;
 353
 354        u32 numpte;     /* Number of entries in array, only valid in head */
 355
 356        struct mutex dmaqueue_lock;
 357        struct saa7164_buffer dmaqueue;
 358
 359        u64 last_irq_msecs, last_svc_msecs;
 360        u64 last_irq_msecs_diff, last_svc_msecs_diff;
 361        u32 last_svc_wp;
 362        u32 last_svc_rp;
 363        u64 last_irq_svc_msecs_diff;
 364        u64 last_read_msecs, last_read_msecs_diff;
 365        u64 last_poll_msecs, last_poll_msecs_diff;
 366
 367        struct saa7164_histogram irq_interval;
 368        struct saa7164_histogram svc_interval;
 369        struct saa7164_histogram irq_svc_interval;
 370        struct saa7164_histogram read_interval;
 371        struct saa7164_histogram poll_interval;
 372
 373        /* --- DVB Transport Specific --- */
 374        struct saa7164_dvb dvb;
 375        struct i2c_client *i2c_client_demod;
 376        struct i2c_client *i2c_client_tuner;
 377
 378        /* --- Encoder/V4L related attributes --- */
 379        /* Encoder */
 380        /* Defaults established in saa7164-encoder.c */
 381        struct saa7164_tvnorm encodernorm;
 382        struct v4l2_ctrl_handler ctrl_handler;
 383        v4l2_std_id std;
 384        u32 height;
 385        u32 width;
 386        u32 freq;
 387        u8 mux_input;
 388        u8 encoder_profile;
 389        u8 video_format;
 390        u8 audio_format;
 391        u8 video_resolution;
 392        u16 ctl_brightness;
 393        u16 ctl_contrast;
 394        u16 ctl_hue;
 395        u16 ctl_saturation;
 396        u16 ctl_sharpness;
 397        s8 ctl_volume;
 398
 399        struct tmComResAFeatureDescrHeader audfeat;
 400        struct tmComResEncoderDescrHeader encunit;
 401        struct tmComResProcDescrHeader vidproc;
 402        struct tmComResExtDevDescrHeader ifunit;
 403        struct tmComResTunerDescrHeader tunerunit;
 404
 405        struct work_struct workenc;
 406
 407        /* V4L Encoder Video */
 408        struct saa7164_encoder_params encoder_params;
 409        struct video_device *v4l_device;
 410        atomic_t v4l_reader_count;
 411
 412        struct saa7164_buffer list_buf_used;
 413        struct saa7164_buffer list_buf_free;
 414        wait_queue_head_t wait_read;
 415
 416        /* V4L VBI */
 417        struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc;
 418        struct saa7164_vbi_params vbi_params;
 419        struct saa7164_port *enc_port;
 420
 421        /* Debug */
 422        u32 sync_errors;
 423        u32 v_cc_errors;
 424        u32 a_cc_errors;
 425        u8 last_v_cc;
 426        u8 last_a_cc;
 427        u32 done_first_interrupt;
 428};
 429
 430struct saa7164_dev {
 431        struct list_head        devlist;
 432        atomic_t                refcount;
 433
 434        struct v4l2_device v4l2_dev;
 435
 436        /* pci stuff */
 437        struct pci_dev  *pci;
 438        unsigned char   pci_rev, pci_lat;
 439        int             pci_bus, pci_slot;
 440        u32             __iomem *lmmio;
 441        u8              __iomem *bmmio;
 442        u32             __iomem *lmmio2;
 443        u8              __iomem *bmmio2;
 444        int             pci_irqmask;
 445
 446        /* board details */
 447        int     nr;
 448        int     hwrevision;
 449        u32     board;
 450        char    name[16];
 451
 452        /* firmware status */
 453        struct saa7164_fw_status        fw_status;
 454        u32                             firmwareloaded;
 455
 456        struct tmComResHWDescr          hwdesc;
 457        struct tmComResInterfaceDescr   intfdesc;
 458        struct tmComResBusDescr         busdesc;
 459
 460        struct tmComResBusInfo          bus;
 461
 462        /* Interrupt status and ack registers */
 463        u32 int_status;
 464        u32 int_ack;
 465        bool msi;
 466
 467        struct cmd                      cmds[SAA_CMD_MAX_MSG_UNITS];
 468        struct mutex                    lock;
 469
 470        /* I2c related */
 471        struct saa7164_i2c i2c_bus[3];
 472
 473        /* Transport related */
 474        struct saa7164_port ports[SAA7164_MAX_PORTS];
 475
 476        /* Deferred command/api interrupts handling */
 477        struct work_struct workcmd;
 478
 479        /* A kernel thread to monitor the firmware log, used
 480         * only in debug mode.
 481         */
 482        struct task_struct *kthread;
 483
 484};
 485
 486extern struct list_head saa7164_devlist;
 487extern unsigned int waitsecs;
 488extern unsigned int encoder_buffers;
 489extern unsigned int vbi_buffers;
 490
 491/* ----------------------------------------------------------- */
 492/* saa7164-core.c                                              */
 493void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 494void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 495u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 496void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 497
 498/* ----------------------------------------------------------- */
 499/* saa7164-fw.c                                                */
 500int saa7164_downloadfirmware(struct saa7164_dev *dev);
 501
 502/* ----------------------------------------------------------- */
 503/* saa7164-i2c.c                                               */
 504extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 505extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 506extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 507        unsigned int cmd, void *arg);
 508
 509/* ----------------------------------------------------------- */
 510/* saa7164-bus.c                                               */
 511int saa7164_bus_setup(struct saa7164_dev *dev);
 512void saa7164_bus_dump(struct saa7164_dev *dev);
 513int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
 514        void *buf);
 515int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
 516        void *buf, int peekonly);
 517
 518/* ----------------------------------------------------------- */
 519/* saa7164-cmd.c                                               */
 520int saa7164_cmd_send(struct saa7164_dev *dev,
 521        u8 id, enum tmComResCmd command, u16 controlselector,
 522        u16 size, void *buf);
 523void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 524int saa7164_irq_dequeue(struct saa7164_dev *dev);
 525
 526/* ----------------------------------------------------------- */
 527/* saa7164-api.c                                               */
 528int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 529int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 530int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 531        u32 datalen, u8 *data);
 532int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 533        u32 datalen, u8 *data);
 534int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 535        u32 datalen, u8 *data);
 536int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 537int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 538int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 539int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
 540int saa7164_api_initialize_dif(struct saa7164_port *port);
 541int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
 542int saa7164_api_set_encoder(struct saa7164_port *port);
 543int saa7164_api_get_encoder(struct saa7164_port *port);
 544int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
 545int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
 546int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
 547int saa7164_api_set_videomux(struct saa7164_port *port);
 548int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
 549int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
 550int saa7164_api_set_audio_std(struct saa7164_port *port);
 551int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
 552int saa7164_api_get_videomux(struct saa7164_port *port);
 553int saa7164_api_set_vbi_format(struct saa7164_port *port);
 554int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
 555int saa7164_api_collect_debug(struct saa7164_dev *dev);
 556int saa7164_api_get_load_info(struct saa7164_dev *dev,
 557        struct tmFwInfoStruct *i);
 558
 559/* ----------------------------------------------------------- */
 560/* saa7164-cards.c                                             */
 561extern struct saa7164_board saa7164_boards[];
 562extern const unsigned int saa7164_bcount;
 563
 564extern struct saa7164_subid saa7164_subids[];
 565extern const unsigned int saa7164_idcount;
 566
 567extern void saa7164_card_list(struct saa7164_dev *dev);
 568extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 569extern void saa7164_card_setup(struct saa7164_dev *dev);
 570
 571extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 572extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 573extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 574
 575/* ----------------------------------------------------------- */
 576/* saa7164-dvb.c                                               */
 577extern int saa7164_dvb_register(struct saa7164_port *port);
 578extern int saa7164_dvb_unregister(struct saa7164_port *port);
 579
 580/* ----------------------------------------------------------- */
 581/* saa7164-buffer.c                                            */
 582extern struct saa7164_buffer *saa7164_buffer_alloc(
 583        struct saa7164_port *port, u32 len);
 584extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 585extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 586extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 587extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 588extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 589        struct saa7164_dev *dev, u32 len);
 590extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 591extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 592
 593/* ----------------------------------------------------------- */
 594/* saa7164-encoder.c                                            */
 595int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id);
 596int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id);
 597int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i);
 598int saa7164_g_input(struct saa7164_port *port, unsigned int *i);
 599int saa7164_s_input(struct saa7164_port *port, unsigned int i);
 600int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
 601int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t);
 602int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f);
 603int saa7164_s_frequency(struct saa7164_port *port,
 604                        const struct v4l2_frequency *f);
 605int saa7164_encoder_register(struct saa7164_port *port);
 606void saa7164_encoder_unregister(struct saa7164_port *port);
 607
 608/* ----------------------------------------------------------- */
 609/* saa7164-vbi.c                                            */
 610int saa7164_vbi_register(struct saa7164_port *port);
 611void saa7164_vbi_unregister(struct saa7164_port *port);
 612
 613/* ----------------------------------------------------------- */
 614
 615extern unsigned int crc_checking;
 616
 617extern unsigned int saa_debug;
 618#define dprintk(level, fmt, arg...)\
 619        do { if (saa_debug & level)\
 620                printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 621        } while (0)
 622
 623#define log_warn(fmt, arg...)\
 624        do { \
 625                printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 626        } while (0)
 627
 628#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 629#define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
 630
 631#define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 632#define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
 633
 634