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_ctrl {
 267        struct v4l2_queryctrl v;
 268};
 269
 270struct saa7164_tvnorm {
 271        char            *name;
 272        v4l2_std_id     id;
 273};
 274
 275struct saa7164_encoder_params {
 276        struct saa7164_tvnorm encodernorm;
 277        u32 height;
 278        u32 width;
 279        u32 is_50hz;
 280        u32 bitrate; /* bps */
 281        u32 bitrate_peak; /* bps */
 282        u32 bitrate_mode;
 283        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 284
 285        u32 audio_sampling_freq;
 286        u32 ctl_mute;
 287        u32 ctl_aspect;
 288        u32 refdist;
 289        u32 gop_size;
 290};
 291
 292struct saa7164_vbi_params {
 293        struct saa7164_tvnorm encodernorm;
 294        u32 height;
 295        u32 width;
 296        u32 is_50hz;
 297        u32 bitrate; /* bps */
 298        u32 bitrate_peak; /* bps */
 299        u32 bitrate_mode;
 300        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 301
 302        u32 audio_sampling_freq;
 303        u32 ctl_mute;
 304        u32 ctl_aspect;
 305        u32 refdist;
 306        u32 gop_size;
 307};
 308
 309struct saa7164_port;
 310
 311struct saa7164_buffer {
 312        struct list_head list;
 313
 314        /* Note of which h/w buffer list index position we occupy */
 315        int idx;
 316
 317        struct saa7164_port *port;
 318
 319        /* Hardware Specific */
 320        /* PCI Memory allocations */
 321        enum saa7164_buffer_flags flags; /* Free, Busy, Full */
 322
 323        /* A block of page align PCI memory */
 324        u32 pci_size;   /* PCI allocation size in bytes */
 325        u64 *cpu;       /* Virtual address */
 326        dma_addr_t dma; /* Physical address */
 327        u32 crc;        /* Checksum for the entire buffer data */
 328
 329        /* A page table that splits the block into a number of entries */
 330        u32 pt_size;            /* PCI allocation size in bytes */
 331        u64 *pt_cpu;            /* Virtual address */
 332        dma_addr_t pt_dma;      /* Physical address */
 333
 334        /* Encoder fops */
 335        u32 pos;
 336        u32 actual_size;
 337};
 338
 339struct saa7164_port {
 340
 341        struct saa7164_dev *dev;
 342        enum port_t type;
 343        int nr;
 344
 345        /* --- Generic port attributes --- */
 346
 347        /* HW stream parameters */
 348        struct tmHWStreamParameters hw_streamingparams;
 349
 350        /* DMA configuration values, is seeded during initialization */
 351        struct tmComResDMATermDescrHeader hwcfg;
 352
 353        /* hardware specific registers */
 354        u32 bufcounter;
 355        u32 pitch;
 356        u32 bufsize;
 357        u32 bufoffset;
 358        u32 bufptr32l;
 359        u32 bufptr32h;
 360        u64 bufptr64;
 361
 362        u32 numpte;     /* Number of entries in array, only valid in head */
 363
 364        struct mutex dmaqueue_lock;
 365        struct saa7164_buffer dmaqueue;
 366
 367        u64 last_irq_msecs, last_svc_msecs;
 368        u64 last_irq_msecs_diff, last_svc_msecs_diff;
 369        u32 last_svc_wp;
 370        u32 last_svc_rp;
 371        u64 last_irq_svc_msecs_diff;
 372        u64 last_read_msecs, last_read_msecs_diff;
 373        u64 last_poll_msecs, last_poll_msecs_diff;
 374
 375        struct saa7164_histogram irq_interval;
 376        struct saa7164_histogram svc_interval;
 377        struct saa7164_histogram irq_svc_interval;
 378        struct saa7164_histogram read_interval;
 379        struct saa7164_histogram poll_interval;
 380
 381        /* --- DVB Transport Specific --- */
 382        struct saa7164_dvb dvb;
 383        struct i2c_client *i2c_client_demod;
 384        struct i2c_client *i2c_client_tuner;
 385
 386        /* --- Encoder/V4L related attributes --- */
 387        /* Encoder */
 388        /* Defaults established in saa7164-encoder.c */
 389        struct saa7164_tvnorm encodernorm;
 390        struct v4l2_ctrl_handler ctrl_handler;
 391        v4l2_std_id std;
 392        u32 height;
 393        u32 width;
 394        u32 freq;
 395        u8 mux_input;
 396        u8 encoder_profile;
 397        u8 video_format;
 398        u8 audio_format;
 399        u8 video_resolution;
 400        u16 ctl_brightness;
 401        u16 ctl_contrast;
 402        u16 ctl_hue;
 403        u16 ctl_saturation;
 404        u16 ctl_sharpness;
 405        s8 ctl_volume;
 406
 407        struct tmComResAFeatureDescrHeader audfeat;
 408        struct tmComResEncoderDescrHeader encunit;
 409        struct tmComResProcDescrHeader vidproc;
 410        struct tmComResExtDevDescrHeader ifunit;
 411        struct tmComResTunerDescrHeader tunerunit;
 412
 413        struct work_struct workenc;
 414
 415        /* V4L Encoder Video */
 416        struct saa7164_encoder_params encoder_params;
 417        struct video_device *v4l_device;
 418        atomic_t v4l_reader_count;
 419
 420        struct saa7164_buffer list_buf_used;
 421        struct saa7164_buffer list_buf_free;
 422        wait_queue_head_t wait_read;
 423
 424        /* V4L VBI */
 425        struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc;
 426        struct saa7164_vbi_params vbi_params;
 427        struct saa7164_port *enc_port;
 428
 429        /* Debug */
 430        u32 sync_errors;
 431        u32 v_cc_errors;
 432        u32 a_cc_errors;
 433        u8 last_v_cc;
 434        u8 last_a_cc;
 435        u32 done_first_interrupt;
 436};
 437
 438struct saa7164_dev {
 439        struct list_head        devlist;
 440        atomic_t                refcount;
 441
 442        struct v4l2_device v4l2_dev;
 443
 444        /* pci stuff */
 445        struct pci_dev  *pci;
 446        unsigned char   pci_rev, pci_lat;
 447        int             pci_bus, pci_slot;
 448        u32             __iomem *lmmio;
 449        u8              __iomem *bmmio;
 450        u32             __iomem *lmmio2;
 451        u8              __iomem *bmmio2;
 452        int             pci_irqmask;
 453
 454        /* board details */
 455        int     nr;
 456        int     hwrevision;
 457        u32     board;
 458        char    name[16];
 459
 460        /* firmware status */
 461        struct saa7164_fw_status        fw_status;
 462        u32                             firmwareloaded;
 463
 464        struct tmComResHWDescr          hwdesc;
 465        struct tmComResInterfaceDescr   intfdesc;
 466        struct tmComResBusDescr         busdesc;
 467
 468        struct tmComResBusInfo          bus;
 469
 470        /* Interrupt status and ack registers */
 471        u32 int_status;
 472        u32 int_ack;
 473        bool msi;
 474
 475        struct cmd                      cmds[SAA_CMD_MAX_MSG_UNITS];
 476        struct mutex                    lock;
 477
 478        /* I2c related */
 479        struct saa7164_i2c i2c_bus[3];
 480
 481        /* Transport related */
 482        struct saa7164_port ports[SAA7164_MAX_PORTS];
 483
 484        /* Deferred command/api interrupts handling */
 485        struct work_struct workcmd;
 486
 487        /* A kernel thread to monitor the firmware log, used
 488         * only in debug mode.
 489         */
 490        struct task_struct *kthread;
 491
 492};
 493
 494extern struct list_head saa7164_devlist;
 495extern unsigned int waitsecs;
 496extern unsigned int encoder_buffers;
 497extern unsigned int vbi_buffers;
 498
 499/* ----------------------------------------------------------- */
 500/* saa7164-core.c                                              */
 501void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 502void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 503u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 504void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 505
 506/* ----------------------------------------------------------- */
 507/* saa7164-fw.c                                                */
 508int saa7164_downloadfirmware(struct saa7164_dev *dev);
 509
 510/* ----------------------------------------------------------- */
 511/* saa7164-i2c.c                                               */
 512extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 513extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 514extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 515        unsigned int cmd, void *arg);
 516
 517/* ----------------------------------------------------------- */
 518/* saa7164-bus.c                                               */
 519int saa7164_bus_setup(struct saa7164_dev *dev);
 520void saa7164_bus_dump(struct saa7164_dev *dev);
 521int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
 522        void *buf);
 523int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
 524        void *buf, int peekonly);
 525
 526/* ----------------------------------------------------------- */
 527/* saa7164-cmd.c                                               */
 528int saa7164_cmd_send(struct saa7164_dev *dev,
 529        u8 id, enum tmComResCmd command, u16 controlselector,
 530        u16 size, void *buf);
 531void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 532int saa7164_irq_dequeue(struct saa7164_dev *dev);
 533
 534/* ----------------------------------------------------------- */
 535/* saa7164-api.c                                               */
 536int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 537int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 538int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 539        u32 datalen, u8 *data);
 540int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 541        u32 datalen, u8 *data);
 542int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 543        u32 datalen, u8 *data);
 544int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 545int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 546int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 547int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
 548int saa7164_api_initialize_dif(struct saa7164_port *port);
 549int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
 550int saa7164_api_set_encoder(struct saa7164_port *port);
 551int saa7164_api_get_encoder(struct saa7164_port *port);
 552int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
 553int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
 554int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
 555int saa7164_api_set_videomux(struct saa7164_port *port);
 556int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
 557int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
 558int saa7164_api_set_audio_std(struct saa7164_port *port);
 559int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
 560int saa7164_api_get_videomux(struct saa7164_port *port);
 561int saa7164_api_set_vbi_format(struct saa7164_port *port);
 562int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
 563int saa7164_api_collect_debug(struct saa7164_dev *dev);
 564int saa7164_api_get_load_info(struct saa7164_dev *dev,
 565        struct tmFwInfoStruct *i);
 566
 567/* ----------------------------------------------------------- */
 568/* saa7164-cards.c                                             */
 569extern struct saa7164_board saa7164_boards[];
 570extern const unsigned int saa7164_bcount;
 571
 572extern struct saa7164_subid saa7164_subids[];
 573extern const unsigned int saa7164_idcount;
 574
 575extern void saa7164_card_list(struct saa7164_dev *dev);
 576extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 577extern void saa7164_card_setup(struct saa7164_dev *dev);
 578
 579extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 580extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 581extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 582
 583/* ----------------------------------------------------------- */
 584/* saa7164-dvb.c                                               */
 585extern int saa7164_dvb_register(struct saa7164_port *port);
 586extern int saa7164_dvb_unregister(struct saa7164_port *port);
 587
 588/* ----------------------------------------------------------- */
 589/* saa7164-buffer.c                                            */
 590extern struct saa7164_buffer *saa7164_buffer_alloc(
 591        struct saa7164_port *port, u32 len);
 592extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 593extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 594extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 595extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 596extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 597        struct saa7164_dev *dev, u32 len);
 598extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 599extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 600
 601/* ----------------------------------------------------------- */
 602/* saa7164-encoder.c                                            */
 603int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id);
 604int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id);
 605int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i);
 606int saa7164_g_input(struct saa7164_port *port, unsigned int *i);
 607int saa7164_s_input(struct saa7164_port *port, unsigned int i);
 608int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
 609int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t);
 610int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f);
 611int saa7164_s_frequency(struct saa7164_port *port,
 612                        const struct v4l2_frequency *f);
 613int saa7164_encoder_register(struct saa7164_port *port);
 614void saa7164_encoder_unregister(struct saa7164_port *port);
 615
 616/* ----------------------------------------------------------- */
 617/* saa7164-vbi.c                                            */
 618int saa7164_vbi_register(struct saa7164_port *port);
 619void saa7164_vbi_unregister(struct saa7164_port *port);
 620
 621/* ----------------------------------------------------------- */
 622
 623extern unsigned int crc_checking;
 624
 625extern unsigned int saa_debug;
 626#define dprintk(level, fmt, arg...)\
 627        do { if (saa_debug & level)\
 628                printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 629        } while (0)
 630
 631#define log_warn(fmt, arg...)\
 632        do { \
 633                printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 634        } while (0)
 635
 636#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 637#define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
 638
 639#define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 640#define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
 641
 642