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 *  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/*
  23        Driver architecture
  24        *******************
  25
  26        saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c
  27                |       : Standard Linux driver framework for creating
  28                |       : exposing and managing interfaces to the rest
  29                |       : of the kernel or userland. Also uses _fw.c to load
  30                |       : firmware direct into the PCIe bus, bypassing layers.
  31                V
  32        saa7164_api..() : Translate kernel specific functions/features
  33                |       : into command buffers.
  34                V
  35        saa7164_cmd..() : Manages the flow of command packets on/off,
  36                |       : the bus. Deal with bus errors, timeouts etc.
  37                V
  38        saa7164_bus..() : Manage a read/write memory ring buffer in the
  39                |       : PCIe Address space.
  40                |
  41                |               saa7164_fw...() : Load any frimware
  42                |                       |       : direct into the device
  43                V                       V
  44        <- ----------------- PCIe address space -------------------- ->
  45*/
  46
  47#include <linux/pci.h>
  48#include <linux/i2c.h>
  49#include <linux/kdev_t.h>
  50#include <linux/mutex.h>
  51#include <linux/crc32.h>
  52#include <linux/kthread.h>
  53#include <linux/freezer.h>
  54
  55#include <media/tuner.h>
  56#include <media/tveeprom.h>
  57#include <dvb_demux.h>
  58#include <dvb_frontend.h>
  59#include <dvb_net.h>
  60#include <dvbdev.h>
  61#include <dmxdev.h>
  62#include <media/v4l2-common.h>
  63#include <media/v4l2-ioctl.h>
  64#include <media/v4l2-device.h>
  65#include <media/v4l2-ctrls.h>
  66#include <media/v4l2-event.h>
  67
  68#include "saa7164-reg.h"
  69#include "saa7164-types.h"
  70
  71#define SAA7164_MAXBOARDS 8
  72
  73#define UNSET (-1U)
  74#define SAA7164_BOARD_NOAUTO                    UNSET
  75#define SAA7164_BOARD_UNKNOWN                   0
  76#define SAA7164_BOARD_UNKNOWN_REV2              1
  77#define SAA7164_BOARD_UNKNOWN_REV3              2
  78#define SAA7164_BOARD_HAUPPAUGE_HVR2250         3
  79#define SAA7164_BOARD_HAUPPAUGE_HVR2200         4
  80#define SAA7164_BOARD_HAUPPAUGE_HVR2200_2       5
  81#define SAA7164_BOARD_HAUPPAUGE_HVR2200_3       6
  82#define SAA7164_BOARD_HAUPPAUGE_HVR2250_2       7
  83#define SAA7164_BOARD_HAUPPAUGE_HVR2250_3       8
  84#define SAA7164_BOARD_HAUPPAUGE_HVR2200_4       9
  85#define SAA7164_BOARD_HAUPPAUGE_HVR2200_5       10
  86#define SAA7164_BOARD_HAUPPAUGE_HVR2255proto    11
  87#define SAA7164_BOARD_HAUPPAUGE_HVR2255         12
  88#define SAA7164_BOARD_HAUPPAUGE_HVR2205         13
  89
  90#define SAA7164_MAX_UNITS               8
  91#define SAA7164_TS_NUMBER_OF_LINES      312
  92#define SAA7164_PS_NUMBER_OF_LINES      256
  93#define SAA7164_PT_ENTRIES              16 /* (312 * 188) / 4096 */
  94#define SAA7164_MAX_ENCODER_BUFFERS     64 /* max 5secs of latency at 6Mbps */
  95#define SAA7164_MAX_VBI_BUFFERS         64
  96
  97/* Port related defines */
  98#define SAA7164_PORT_TS1        (0)
  99#define SAA7164_PORT_TS2        (SAA7164_PORT_TS1 + 1)
 100#define SAA7164_PORT_ENC1       (SAA7164_PORT_TS2 + 1)
 101#define SAA7164_PORT_ENC2       (SAA7164_PORT_ENC1 + 1)
 102#define SAA7164_PORT_VBI1       (SAA7164_PORT_ENC2 + 1)
 103#define SAA7164_PORT_VBI2       (SAA7164_PORT_VBI1 + 1)
 104#define SAA7164_MAX_PORTS       (SAA7164_PORT_VBI2 + 1)
 105
 106#define DBGLVL_FW    4
 107#define DBGLVL_DVB   8
 108#define DBGLVL_I2C  16
 109#define DBGLVL_API  32
 110#define DBGLVL_CMD  64
 111#define DBGLVL_BUS 128
 112#define DBGLVL_IRQ 256
 113#define DBGLVL_BUF 512
 114#define DBGLVL_ENC 1024
 115#define DBGLVL_VBI 2048
 116#define DBGLVL_THR 4096
 117#define DBGLVL_CPU 8192
 118
 119#define SAA7164_NORMS \
 120        (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP)
 121
 122/* TV frequency range copied from tuner-core.c */
 123#define SAA7164_TV_MIN_FREQ (44U * 16U)
 124#define SAA7164_TV_MAX_FREQ (958U * 16U)
 125
 126enum port_t {
 127        SAA7164_MPEG_UNDEFINED = 0,
 128        SAA7164_MPEG_DVB,
 129        SAA7164_MPEG_ENCODER,
 130        SAA7164_MPEG_VBI,
 131};
 132
 133enum saa7164_i2c_bus_nr {
 134        SAA7164_I2C_BUS_0 = 0,
 135        SAA7164_I2C_BUS_1,
 136        SAA7164_I2C_BUS_2,
 137};
 138
 139enum saa7164_buffer_flags {
 140        SAA7164_BUFFER_UNDEFINED = 0,
 141        SAA7164_BUFFER_FREE,
 142        SAA7164_BUFFER_BUSY,
 143        SAA7164_BUFFER_FULL
 144};
 145
 146enum saa7164_unit_type {
 147        SAA7164_UNIT_UNDEFINED = 0,
 148        SAA7164_UNIT_DIGITAL_DEMODULATOR,
 149        SAA7164_UNIT_ANALOG_DEMODULATOR,
 150        SAA7164_UNIT_TUNER,
 151        SAA7164_UNIT_EEPROM,
 152        SAA7164_UNIT_ZILOG_IRBLASTER,
 153        SAA7164_UNIT_ENCODER,
 154};
 155
 156/* The PCIe bridge doesn't grant direct access to i2c.
 157 * Instead, you address i2c devices using a uniqely
 158 * allocated 'unitid' value via a messaging API. This
 159 * is a problem. The kernel and existing demod/tuner
 160 * drivers expect to talk 'i2c', so we have to maintain
 161 * a translation layer, and a series of functions to
 162 * convert i2c bus + device address into a unit id.
 163 */
 164struct saa7164_unit {
 165        enum saa7164_unit_type type;
 166        u8      id;
 167        char    *name;
 168        enum saa7164_i2c_bus_nr i2c_bus_nr;
 169        u8      i2c_bus_addr;
 170        u8      i2c_reg_len;
 171};
 172
 173struct saa7164_board {
 174        char    *name;
 175        enum port_t porta, portb, portc,
 176                portd, porte, portf;
 177        enum {
 178                SAA7164_CHIP_UNDEFINED = 0,
 179                SAA7164_CHIP_REV2,
 180                SAA7164_CHIP_REV3,
 181        } chiprev;
 182        struct  saa7164_unit unit[SAA7164_MAX_UNITS];
 183};
 184
 185struct saa7164_subid {
 186        u16     subvendor;
 187        u16     subdevice;
 188        u32     card;
 189};
 190
 191struct saa7164_encoder_fh {
 192        struct v4l2_fh fh;
 193        struct saa7164_port *port;
 194        atomic_t v4l_reading;
 195};
 196
 197struct saa7164_vbi_fh {
 198        struct v4l2_fh fh;
 199        struct saa7164_port *port;
 200        atomic_t v4l_reading;
 201};
 202
 203struct saa7164_histogram_bucket {
 204        u32 val;
 205        u32 count;
 206        u64 update_time;
 207};
 208
 209struct saa7164_histogram {
 210        char name[32];
 211        struct saa7164_histogram_bucket counter1[64];
 212};
 213
 214struct saa7164_user_buffer {
 215        struct list_head list;
 216
 217        /* Attributes */
 218        u8  *data;
 219        u32 pos;
 220        u32 actual_size;
 221
 222        u32 crc;
 223};
 224
 225struct saa7164_fw_status {
 226
 227        /* RISC Core details */
 228        u32     status;
 229        u32     mode;
 230        u32     spec;
 231        u32     inst;
 232        u32     cpuload;
 233        u32     remainheap;
 234
 235        /* Firmware version */
 236        u32     version;
 237        u32     major;
 238        u32     sub;
 239        u32     rel;
 240        u32     buildnr;
 241};
 242
 243struct saa7164_dvb {
 244        struct mutex lock;
 245        struct dvb_adapter adapter;
 246        struct dvb_frontend *frontend;
 247        struct dvb_demux demux;
 248        struct dmxdev dmxdev;
 249        struct dmx_frontend fe_hw;
 250        struct dmx_frontend fe_mem;
 251        struct dvb_net net;
 252        int feeding;
 253};
 254
 255struct saa7164_i2c {
 256        struct saa7164_dev              *dev;
 257
 258        enum saa7164_i2c_bus_nr         nr;
 259
 260        /* I2C I/O */
 261        struct i2c_adapter              i2c_adap;
 262        struct i2c_client               i2c_client;
 263        u32                             i2c_rc;
 264};
 265
 266struct saa7164_tvnorm {
 267        char            *name;
 268        v4l2_std_id     id;
 269};
 270
 271struct saa7164_encoder_params {
 272        struct saa7164_tvnorm encodernorm;
 273        u32 height;
 274        u32 width;
 275        u32 is_50hz;
 276        u32 bitrate; /* bps */
 277        u32 bitrate_peak; /* bps */
 278        u32 bitrate_mode;
 279        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 280
 281        u32 audio_sampling_freq;
 282        u32 ctl_mute;
 283        u32 ctl_aspect;
 284        u32 refdist;
 285        u32 gop_size;
 286};
 287
 288struct saa7164_vbi_params {
 289        struct saa7164_tvnorm encodernorm;
 290        u32 height;
 291        u32 width;
 292        u32 is_50hz;
 293        u32 bitrate; /* bps */
 294        u32 bitrate_peak; /* bps */
 295        u32 bitrate_mode;
 296        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 297
 298        u32 audio_sampling_freq;
 299        u32 ctl_mute;
 300        u32 ctl_aspect;
 301        u32 refdist;
 302        u32 gop_size;
 303};
 304
 305struct saa7164_port;
 306
 307struct saa7164_buffer {
 308        struct list_head list;
 309
 310        /* Note of which h/w buffer list index position we occupy */
 311        int idx;
 312
 313        struct saa7164_port *port;
 314
 315        /* Hardware Specific */
 316        /* PCI Memory allocations */
 317        enum saa7164_buffer_flags flags; /* Free, Busy, Full */
 318
 319        /* A block of page align PCI memory */
 320        u32 pci_size;   /* PCI allocation size in bytes */
 321        u64 *cpu;       /* Virtual address */
 322        dma_addr_t dma; /* Physical address */
 323        u32 crc;        /* Checksum for the entire buffer data */
 324
 325        /* A page table that splits the block into a number of entries */
 326        u32 pt_size;            /* PCI allocation size in bytes */
 327        u64 *pt_cpu;            /* Virtual address */
 328        dma_addr_t pt_dma;      /* Physical address */
 329
 330        /* Encoder fops */
 331        u32 pos;
 332        u32 actual_size;
 333};
 334
 335struct saa7164_port {
 336
 337        struct saa7164_dev *dev;
 338        enum port_t type;
 339        int nr;
 340
 341        /* --- Generic port attributes --- */
 342
 343        /* HW stream parameters */
 344        struct tmHWStreamParameters hw_streamingparams;
 345
 346        /* DMA configuration values, is seeded during initialization */
 347        struct tmComResDMATermDescrHeader hwcfg;
 348
 349        /* hardware specific registers */
 350        u32 bufcounter;
 351        u32 pitch;
 352        u32 bufsize;
 353        u32 bufoffset;
 354        u32 bufptr32l;
 355        u32 bufptr32h;
 356        u64 bufptr64;
 357
 358        u32 numpte;     /* Number of entries in array, only valid in head */
 359
 360        struct mutex dmaqueue_lock;
 361        struct saa7164_buffer dmaqueue;
 362
 363        u64 last_irq_msecs, last_svc_msecs;
 364        u64 last_irq_msecs_diff, last_svc_msecs_diff;
 365        u32 last_svc_wp;
 366        u32 last_svc_rp;
 367        u64 last_irq_svc_msecs_diff;
 368        u64 last_read_msecs, last_read_msecs_diff;
 369        u64 last_poll_msecs, last_poll_msecs_diff;
 370
 371        struct saa7164_histogram irq_interval;
 372        struct saa7164_histogram svc_interval;
 373        struct saa7164_histogram irq_svc_interval;
 374        struct saa7164_histogram read_interval;
 375        struct saa7164_histogram poll_interval;
 376
 377        /* --- DVB Transport Specific --- */
 378        struct saa7164_dvb dvb;
 379        struct i2c_client *i2c_client_demod;
 380        struct i2c_client *i2c_client_tuner;
 381
 382        /* --- Encoder/V4L related attributes --- */
 383        /* Encoder */
 384        /* Defaults established in saa7164-encoder.c */
 385        struct saa7164_tvnorm encodernorm;
 386        struct v4l2_ctrl_handler ctrl_handler;
 387        v4l2_std_id std;
 388        u32 height;
 389        u32 width;
 390        u32 freq;
 391        u8 mux_input;
 392        u8 encoder_profile;
 393        u8 video_format;
 394        u8 audio_format;
 395        u8 video_resolution;
 396        u16 ctl_brightness;
 397        u16 ctl_contrast;
 398        u16 ctl_hue;
 399        u16 ctl_saturation;
 400        u16 ctl_sharpness;
 401        s8 ctl_volume;
 402
 403        struct tmComResAFeatureDescrHeader audfeat;
 404        struct tmComResEncoderDescrHeader encunit;
 405        struct tmComResProcDescrHeader vidproc;
 406        struct tmComResExtDevDescrHeader ifunit;
 407        struct tmComResTunerDescrHeader tunerunit;
 408
 409        struct work_struct workenc;
 410
 411        /* V4L Encoder Video */
 412        struct saa7164_encoder_params encoder_params;
 413        struct video_device *v4l_device;
 414        atomic_t v4l_reader_count;
 415
 416        struct saa7164_buffer list_buf_used;
 417        struct saa7164_buffer list_buf_free;
 418        wait_queue_head_t wait_read;
 419
 420        /* V4L VBI */
 421        struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc;
 422        struct saa7164_vbi_params vbi_params;
 423        struct saa7164_port *enc_port;
 424
 425        /* Debug */
 426        u32 sync_errors;
 427        u32 v_cc_errors;
 428        u32 a_cc_errors;
 429        u8 last_v_cc;
 430        u8 last_a_cc;
 431        u32 done_first_interrupt;
 432};
 433
 434struct saa7164_dev {
 435        struct list_head        devlist;
 436        atomic_t                refcount;
 437
 438        struct v4l2_device v4l2_dev;
 439
 440        /* pci stuff */
 441        struct pci_dev  *pci;
 442        unsigned char   pci_rev, pci_lat;
 443        int             pci_bus, pci_slot;
 444        u32             __iomem *lmmio;
 445        u8              __iomem *bmmio;
 446        u32             __iomem *lmmio2;
 447        u8              __iomem *bmmio2;
 448        int             pci_irqmask;
 449
 450        /* board details */
 451        int     nr;
 452        int     hwrevision;
 453        u32     board;
 454        char    name[16];
 455
 456        /* firmware status */
 457        struct saa7164_fw_status        fw_status;
 458        u32                             firmwareloaded;
 459
 460        struct tmComResHWDescr          hwdesc;
 461        struct tmComResInterfaceDescr   intfdesc;
 462        struct tmComResBusDescr         busdesc;
 463
 464        struct tmComResBusInfo          bus;
 465
 466        /* Interrupt status and ack registers */
 467        u32 int_status;
 468        u32 int_ack;
 469        bool msi;
 470
 471        struct cmd                      cmds[SAA_CMD_MAX_MSG_UNITS];
 472        struct mutex                    lock;
 473
 474        /* I2c related */
 475        struct saa7164_i2c i2c_bus[3];
 476
 477        /* Transport related */
 478        struct saa7164_port ports[SAA7164_MAX_PORTS];
 479
 480        /* Deferred command/api interrupts handling */
 481        struct work_struct workcmd;
 482
 483        /* A kernel thread to monitor the firmware log, used
 484         * only in debug mode.
 485         */
 486        struct task_struct *kthread;
 487
 488};
 489
 490extern struct list_head saa7164_devlist;
 491extern unsigned int waitsecs;
 492extern unsigned int encoder_buffers;
 493extern unsigned int vbi_buffers;
 494
 495/* ----------------------------------------------------------- */
 496/* saa7164-core.c                                              */
 497void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 498void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 499u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 500void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 501
 502/* ----------------------------------------------------------- */
 503/* saa7164-fw.c                                                */
 504int saa7164_downloadfirmware(struct saa7164_dev *dev);
 505
 506/* ----------------------------------------------------------- */
 507/* saa7164-i2c.c                                               */
 508extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 509extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 510extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 511        unsigned int cmd, void *arg);
 512
 513/* ----------------------------------------------------------- */
 514/* saa7164-bus.c                                               */
 515int saa7164_bus_setup(struct saa7164_dev *dev);
 516void saa7164_bus_dump(struct saa7164_dev *dev);
 517int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
 518        void *buf);
 519int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
 520        void *buf, int peekonly);
 521
 522/* ----------------------------------------------------------- */
 523/* saa7164-cmd.c                                               */
 524int saa7164_cmd_send(struct saa7164_dev *dev,
 525        u8 id, enum tmComResCmd command, u16 controlselector,
 526        u16 size, void *buf);
 527void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 528int saa7164_irq_dequeue(struct saa7164_dev *dev);
 529
 530/* ----------------------------------------------------------- */
 531/* saa7164-api.c                                               */
 532int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 533int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 534int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 535        u32 datalen, u8 *data);
 536int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 537        u32 datalen, u8 *data);
 538int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 539        u32 datalen, u8 *data);
 540int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 541int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 542int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 543int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
 544int saa7164_api_initialize_dif(struct saa7164_port *port);
 545int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
 546int saa7164_api_set_encoder(struct saa7164_port *port);
 547int saa7164_api_get_encoder(struct saa7164_port *port);
 548int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
 549int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
 550int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
 551int saa7164_api_set_videomux(struct saa7164_port *port);
 552int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
 553int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
 554int saa7164_api_set_audio_std(struct saa7164_port *port);
 555int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
 556int saa7164_api_get_videomux(struct saa7164_port *port);
 557int saa7164_api_set_vbi_format(struct saa7164_port *port);
 558int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
 559int saa7164_api_collect_debug(struct saa7164_dev *dev);
 560int saa7164_api_get_load_info(struct saa7164_dev *dev,
 561        struct tmFwInfoStruct *i);
 562
 563/* ----------------------------------------------------------- */
 564/* saa7164-cards.c                                             */
 565extern struct saa7164_board saa7164_boards[];
 566extern const unsigned int saa7164_bcount;
 567
 568extern struct saa7164_subid saa7164_subids[];
 569extern const unsigned int saa7164_idcount;
 570
 571extern void saa7164_card_list(struct saa7164_dev *dev);
 572extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 573extern void saa7164_card_setup(struct saa7164_dev *dev);
 574
 575extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 576extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 577extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 578
 579/* ----------------------------------------------------------- */
 580/* saa7164-dvb.c                                               */
 581extern int saa7164_dvb_register(struct saa7164_port *port);
 582extern int saa7164_dvb_unregister(struct saa7164_port *port);
 583
 584/* ----------------------------------------------------------- */
 585/* saa7164-buffer.c                                            */
 586extern struct saa7164_buffer *saa7164_buffer_alloc(
 587        struct saa7164_port *port, u32 len);
 588extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 589extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 590extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 591extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 592extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 593        struct saa7164_dev *dev, u32 len);
 594extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 595extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 596
 597/* ----------------------------------------------------------- */
 598/* saa7164-encoder.c                                            */
 599int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id);
 600int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id);
 601int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i);
 602int saa7164_g_input(struct saa7164_port *port, unsigned int *i);
 603int saa7164_s_input(struct saa7164_port *port, unsigned int i);
 604int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
 605int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t);
 606int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f);
 607int saa7164_s_frequency(struct saa7164_port *port,
 608                        const struct v4l2_frequency *f);
 609int saa7164_encoder_register(struct saa7164_port *port);
 610void saa7164_encoder_unregister(struct saa7164_port *port);
 611
 612/* ----------------------------------------------------------- */
 613/* saa7164-vbi.c                                            */
 614int saa7164_vbi_register(struct saa7164_port *port);
 615void saa7164_vbi_unregister(struct saa7164_port *port);
 616
 617/* ----------------------------------------------------------- */
 618
 619extern unsigned int crc_checking;
 620
 621extern unsigned int saa_debug;
 622#define dprintk(level, fmt, arg...)\
 623        do { if (saa_debug & level)\
 624                printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 625        } while (0)
 626
 627#define log_warn(fmt, arg...)\
 628        do { \
 629                printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 630        } while (0)
 631
 632#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 633#define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
 634
 635#define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 636#define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
 637
 638