drivers/media/video/saa7164/saa7164.h

   1 /*
   2  *  Driver for the NXP SAA7164 PCIe bridge
   3  *
   4  *  Copyright (c) 2010 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/i2c-algo-bit.h>
  50 #include <linux/kdev_t.h>
  51 #include <linux/version.h>
  52 #include <linux/mutex.h>
  53 #include <linux/crc32.h>
  54 #include <linux/kthread.h>
  55 #include <linux/freezer.h>
  56
  57 #include <media/tuner.h>
  58 #include <media/tveeprom.h>
  59 #include <media/videobuf-dma-sg.h>
  60 #include <media/videobuf-dvb.h>
  61 #include <linux/smp_lock.h>
  62 #include <dvb_demux.h>
  63 #include <dvb_frontend.h>
  64 #include <dvb_net.h>
  65 #include <dvbdev.h>
  66 #include <dmxdev.h>
  67 #include <media/v4l2-common.h>
  68 #include <media/v4l2-ioctl.h>
  69 #include <media/v4l2-chip-ident.h>
  70
  71 #include "saa7164-reg.h"
  72 #include "saa7164-types.h"
  73
  74 #define SAA7164_MAXBOARDS 8
  75
  76 #define UNSET (-1U)
  77 #define SAA7164_BOARD_NOAUTO                    UNSET
  78 #define SAA7164_BOARD_UNKNOWN                   0
  79 #define SAA7164_BOARD_UNKNOWN_REV2              1
  80 #define SAA7164_BOARD_UNKNOWN_REV3              2
  81 #define SAA7164_BOARD_HAUPPAUGE_HVR2250         3
  82 #define SAA7164_BOARD_HAUPPAUGE_HVR2200         4
  83 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_2       5
  84 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_3       6
  85 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_2       7
  86 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_3       8
  87
  88 #define SAA7164_MAX_UNITS               8
  89 #define SAA7164_TS_NUMBER_OF_LINES      312
  90 #define SAA7164_PS_NUMBER_OF_LINES      256
  91 #define SAA7164_PT_ENTRIES              16 /* (312 * 188) / 4096 */
  92 #define SAA7164_MAX_ENCODER_BUFFERS     64 /* max 5secs of latency at 6Mbps */
  93 #define SAA7164_MAX_VBI_BUFFERS         64
  94
  95 /* Port related defines */
  96 #define SAA7164_PORT_TS1        (0)
  97 #define SAA7164_PORT_TS2        (SAA7164_PORT_TS1 + 1)
  98 #define SAA7164_PORT_ENC1       (SAA7164_PORT_TS2 + 1)
  99 #define SAA7164_PORT_ENC2       (SAA7164_PORT_ENC1 + 1)
 100 #define SAA7164_PORT_VBI1       (SAA7164_PORT_ENC2 + 1)
 101 #define SAA7164_PORT_VBI2       (SAA7164_PORT_VBI1 + 1)
 102 #define SAA7164_MAX_PORTS       (SAA7164_PORT_VBI2 + 1)
 103
 104 #define DBGLVL_FW    4
 105 #define DBGLVL_DVB   8
 106 #define DBGLVL_I2C  16
 107 #define DBGLVL_API  32
 108 #define DBGLVL_CMD  64
 109 #define DBGLVL_BUS 128
 110 #define DBGLVL_IRQ 256
 111 #define DBGLVL_BUF 512
 112 #define DBGLVL_ENC 1024
 113 #define DBGLVL_VBI 2048
 114 #define DBGLVL_THR 4096
 115 #define DBGLVL_CPU 8192
 116
 117 #define SAA7164_NORMS (V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP |  V4L2_STD_NTSC_443)
 118
 119 enum port_t {
 120         SAA7164_MPEG_UNDEFINED = 0,
 121         SAA7164_MPEG_DVB,
 122         SAA7164_MPEG_ENCODER,
 123         SAA7164_MPEG_VBI,
 124 };
 125
 126 enum saa7164_i2c_bus_nr {
 127         SAA7164_I2C_BUS_0 = 0,
 128         SAA7164_I2C_BUS_1,
 129         SAA7164_I2C_BUS_2,
 130 };
 131
 132 enum saa7164_buffer_flags {
 133         SAA7164_BUFFER_UNDEFINED = 0,
 134         SAA7164_BUFFER_FREE,
 135         SAA7164_BUFFER_BUSY,
 136         SAA7164_BUFFER_FULL
 137 };
 138
 139 enum saa7164_unit_type {
 140         SAA7164_UNIT_UNDEFINED = 0,
 141         SAA7164_UNIT_DIGITAL_DEMODULATOR,
 142         SAA7164_UNIT_ANALOG_DEMODULATOR,
 143         SAA7164_UNIT_TUNER,
 144         SAA7164_UNIT_EEPROM,
 145         SAA7164_UNIT_ZILOG_IRBLASTER,
 146         SAA7164_UNIT_ENCODER,
 147 };
 148
 149 /* The PCIe bridge doesn't grant direct access to i2c.
 150  * Instead, you address i2c devices using a uniqely
 151  * allocated 'unitid' value via a messaging API. This
 152  * is a problem. The kernel and existing demod/tuner
 153  * drivers expect to talk 'i2c', so we have to maintain
 154  * a translation layer, and a series of functions to
 155  * convert i2c bus + device address into a unit id.
 156  */
 157 struct saa7164_unit {
 158         enum saa7164_unit_type type;
 159         u8      id;
 160         char    *name;
 161         enum saa7164_i2c_bus_nr i2c_bus_nr;
 162         u8      i2c_bus_addr;
 163         u8      i2c_reg_len;
 164 };
 165
 166 struct saa7164_board {
 167         char    *name;
 168         enum port_t porta, portb, portc,
 169                 portd, porte, portf;
 170         enum {
 171                 SAA7164_CHIP_UNDEFINED = 0,
 172                 SAA7164_CHIP_REV2,
 173                 SAA7164_CHIP_REV3,
 174         } chiprev;
 175         struct  saa7164_unit unit[SAA7164_MAX_UNITS];
 176 };
 177
 178 struct saa7164_subid {
 179         u16     subvendor;
 180         u16     subdevice;
 181         u32     card;
 182 };
 183
 184 struct saa7164_encoder_fh {
 185         struct saa7164_port *port;
 186 //      u32 freq;
 187 //      u32 tuner_type;
 188         atomic_t v4l_reading;
 189 };
 190
 191 struct saa7164_vbi_fh {
 192         struct saa7164_port *port;
 193 //      u32 freq;
 194 //      u32 tuner_type;
 195         atomic_t v4l_reading;
 196 };
 197
 198 struct saa7164_histogram_bucket {
 199         u32 val;
 200         u32 count;
 201         u64 update_time;
 202 };
 203
 204 struct saa7164_histogram {
 205         char name[32];
 206         struct saa7164_histogram_bucket counter1[64];
 207 };
 208
 209 struct saa7164_user_buffer {
 210         struct list_head list;
 211
 212         /* Attributes */
 213         u8  *data;
 214         u32 pos;
 215         u32 actual_size;
 216
 217         u32 crc;
 218 };
 219
 220 struct saa7164_fw_status {
 221
 222         /* RISC Core details */
 223         u32     status;
 224         u32     mode;
 225         u32     spec;
 226         u32     inst;
 227         u32     cpuload;
 228         u32     remainheap;
 229
 230         /* Firmware version */
 231         u32     version;
 232         u32     major;
 233         u32     sub;
 234         u32     rel;
 235         u32     buildnr;
 236 };
 237
 238 struct saa7164_dvb {
 239         struct mutex lock;
 240         struct dvb_adapter adapter;
 241         struct dvb_frontend *frontend;
 242         struct dvb_demux demux;
 243         struct dmxdev dmxdev;
 244         struct dmx_frontend fe_hw;
 245         struct dmx_frontend fe_mem;
 246         struct dvb_net net;
 247         int feeding;
 248 };
 249
 250 struct saa7164_i2c {
 251         struct saa7164_dev              *dev;
 252
 253         enum saa7164_i2c_bus_nr         nr;
 254
 255         /* I2C I/O */
 256         struct i2c_adapter              i2c_adap;
 257         struct i2c_algo_bit_data        i2c_algo;
 258         struct i2c_client               i2c_client;
 259         u32                             i2c_rc;
 260 };
 261
 262 struct saa7164_ctrl {
 263         struct v4l2_queryctrl v;
 264 };
 265
 266 struct saa7164_tvnorm {
 267         char            *name;
 268         v4l2_std_id     id;
 269 //      u32             cxiformat;
 270 //      u32             cxoformat;
 271 };
 272
 273 struct saa7164_encoder_params {
 274         struct saa7164_tvnorm encodernorm;
 275         u32 height;
 276         u32 width;
 277         u32 is_50hz;
 278         u32 bitrate; /* bps */
 279         u32 bitrate_peak; /* bps */
 280         u32 bitrate_mode;
 281         u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 282
 283         u32 audio_sampling_freq;
 284         u32 ctl_mute;
 285         u32 ctl_aspect;
 286         u32 refdist;
 287         u32 gop_size;
 288 };
 289
 290 struct saa7164_vbi_params {
 291         struct saa7164_tvnorm encodernorm;
 292         u32 height;
 293         u32 width;
 294         u32 is_50hz;
 295         u32 bitrate; /* bps */
 296         u32 bitrate_peak; /* bps */
 297         u32 bitrate_mode;
 298         u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 299
 300         u32 audio_sampling_freq;
 301         u32 ctl_mute;
 302         u32 ctl_aspect;
 303         u32 refdist;
 304         u32 gop_size;
 305 };
 306
 307 struct saa7164_port;
 308
 309 struct saa7164_buffer {
 310         struct list_head list;
 311
 312         /* Note of which h/w buffer list index position we occupy */
 313         int idx;
 314
 315         struct saa7164_port *port;
 316
 317         /* Hardware Specific */
 318         /* PCI Memory allocations */
 319         enum saa7164_buffer_flags flags; /* Free, Busy, Full */
 320
 321         /* A block of page align PCI memory */
 322         u32 pci_size;   /* PCI allocation size in bytes */
 323         u64 __iomem *cpu;       /* Virtual address */
 324         dma_addr_t dma; /* Physical address */
 325         u32 crc;        /* Checksum for the entire buffer data */
 326
 327         /* A page table that splits the block into a number of entries */
 328         u32 pt_size;            /* PCI allocation size in bytes */
 329         u64 __iomem *pt_cpu;            /* Virtual address */
 330         dma_addr_t pt_dma;      /* Physical address */
 331
 332         /* Encoder fops */
 333         u32 pos;
 334         u32 actual_size;
 335 };
 336
 337 struct saa7164_port {
 338
 339         struct saa7164_dev *dev;
 340         enum port_t type;
 341         int nr;
 342
 343         /* --- Generic port attributes --- */
 344
 345         /* HW stream parameters */
 346         struct tmHWStreamParameters hw_streamingparams;
 347
 348         /* DMA configuration values, is seeded during initialization */
 349         struct tmComResDMATermDescrHeader hwcfg;
 350
 351         /* hardware specific registers */
 352         u32 bufcounter;
 353         u32 pitch;
 354         u32 bufsize;
 355         u32 bufoffset;
 356         u32 bufptr32l;
 357         u32 bufptr32h;
 358         u64 bufptr64;
 359
 360         u32 numpte;     /* Number of entries in array, only valid in head */
 361
 362         struct mutex dmaqueue_lock;
 363         struct saa7164_buffer dmaqueue;
 364
 365         u64 last_irq_msecs, last_svc_msecs;
 366         u64 last_irq_msecs_diff, last_svc_msecs_diff;
 367         u32 last_svc_wp;
 368         u32 last_svc_rp;
 369         u64 last_irq_svc_msecs_diff;
 370         u64 last_read_msecs, last_read_msecs_diff;
 371         u64 last_poll_msecs, last_poll_msecs_diff;
 372
 373         struct saa7164_histogram irq_interval;
 374         struct saa7164_histogram svc_interval;
 375         struct saa7164_histogram irq_svc_interval;
 376         struct saa7164_histogram read_interval;
 377         struct saa7164_histogram poll_interval;
 378
 379         /* --- DVB Transport Specific --- */
 380         struct saa7164_dvb dvb;
 381
 382         /* --- Encoder/V4L related attributes --- */
 383         /* Encoder */
 384         /* Defaults established in saa7164-encoder.c */
 385         struct saa7164_tvnorm encodernorm;
 386         u32 height;
 387         u32 width;
 388         u32 freq;
 389         u32 ts_packet_size;
 390         u32 ts_packet_count;
 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
 424         /* Debug */
 425         u32 sync_errors;
 426         u32 v_cc_errors;
 427         u32 a_cc_errors;
 428         u8 last_v_cc;
 429         u8 last_a_cc;
 430         u32 done_first_interrupt;
 431 };
 432
 433 struct saa7164_dev {
 434         struct list_head        devlist;
 435         atomic_t                refcount;
 436
 437         /* pci stuff */
 438         struct pci_dev  *pci;
 439         unsigned char   pci_rev, pci_lat;
 440         int             pci_bus, pci_slot;
 441         u32             __iomem *lmmio;
 442         u8              __iomem *bmmio;
 443         u32             __iomem *lmmio2;
 444         u8              __iomem *bmmio2;
 445         int             pci_irqmask;
 446
 447         /* board details */
 448         int     nr;
 449         int     hwrevision;
 450         u32     board;
 451         char    name[32];
 452
 453         /* firmware status */
 454         struct saa7164_fw_status        fw_status;
 455         u32                             firmwareloaded;
 456
 457         struct tmComResHWDescr          hwdesc;
 458         struct tmComResInterfaceDescr   intfdesc;
 459         struct tmComResBusDescr         busdesc;
 460
 461         struct tmComResBusInfo          bus;
 462
 463         /* Interrupt status and ack registers */
 464         u32 int_status;
 465         u32 int_ack;
 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
 486 extern struct list_head saa7164_devlist;
 487 extern unsigned int waitsecs;
 488 extern unsigned int encoder_buffers;
 489 extern unsigned int vbi_buffers;
 490
 491 /* ----------------------------------------------------------- */
 492 /* saa7164-core.c                                              */
 493 void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 494 void saa7164_dumphex16(struct saa7164_dev *dev, u8 *buf, int len);
 495 void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 496 u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 497 void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 498
 499 /* ----------------------------------------------------------- */
 500 /* saa7164-fw.c                                                */
 501 int saa7164_downloadfirmware(struct saa7164_dev *dev);
 502
 503 /* ----------------------------------------------------------- */
 504 /* saa7164-i2c.c                                               */
 505 extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 506 extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 507 extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 508         unsigned int cmd, void *arg);
 509
 510 /* ----------------------------------------------------------- */
 511 /* saa7164-bus.c                                               */
 512 int saa7164_bus_setup(struct saa7164_dev *dev);
 513 void saa7164_bus_dump(struct saa7164_dev *dev);
 514 int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg, void *buf);
 515 int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
 516         void *buf, int peekonly);
 517
 518 /* ----------------------------------------------------------- */
 519 /* saa7164-cmd.c                                               */
 520 int saa7164_cmd_send(struct saa7164_dev *dev,
 521         u8 id, enum tmComResCmd command, u16 controlselector,
 522         u16 size, void *buf);
 523 void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 524 int saa7164_irq_dequeue(struct saa7164_dev *dev);
 525
 526 /* ----------------------------------------------------------- */
 527 /* saa7164-api.c                                               */
 528 int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 529 int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 530 int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 531         u32 datalen, u8 *data);
 532 int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 533         u32 datalen, u8 *data);
 534 int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 535         u32 datalen, u8 *data);
 536 int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 537 int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 538 int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 539 int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
 540 int saa7164_api_initialize_dif(struct saa7164_port *port);
 541 int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
 542 int saa7164_api_set_encoder(struct saa7164_port *port);
 543 int saa7164_api_get_encoder(struct saa7164_port *port);
 544 int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
 545 int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
 546 int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
 547 int saa7164_api_set_videomux(struct saa7164_port *port);
 548 int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
 549 int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
 550 int saa7164_api_set_audio_std(struct saa7164_port *port);
 551 int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
 552 int saa7164_api_get_videomux(struct saa7164_port *port);
 553 int saa7164_api_set_vbi_format(struct saa7164_port *port);
 554 int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
 555 int saa7164_api_collect_debug(struct saa7164_dev *dev);
 556 int saa7164_api_get_load_info(struct saa7164_dev *dev, struct tmFwInfoStruct *i);
 557
 558 /* ----------------------------------------------------------- */
 559 /* saa7164-cards.c                                             */
 560 extern struct saa7164_board saa7164_boards[];
 561 extern const unsigned int saa7164_bcount;
 562
 563 extern struct saa7164_subid saa7164_subids[];
 564 extern const unsigned int saa7164_idcount;
 565
 566 extern void saa7164_card_list(struct saa7164_dev *dev);
 567 extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 568 extern void saa7164_card_setup(struct saa7164_dev *dev);
 569
 570 extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 571 extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 572 extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 573
 574 /* ----------------------------------------------------------- */
 575 /* saa7164-dvb.c                                               */
 576 extern int saa7164_dvb_register(struct saa7164_port *port);
 577 extern int saa7164_dvb_unregister(struct saa7164_port *port);
 578
 579 /* ----------------------------------------------------------- */
 580 /* saa7164-buffer.c                                            */
 581 extern struct saa7164_buffer *saa7164_buffer_alloc(
 582         struct saa7164_port *port, u32 len);
 583 extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 584 extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 585 extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 586 extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 587 extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 588         struct saa7164_dev *dev, u32 len);
 589 extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 590 extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 591
 592 /* ----------------------------------------------------------- */
 593 /* saa7164-encoder.c                                            */
 594 int saa7164_encoder_register(struct saa7164_port *port);
 595 void saa7164_encoder_unregister(struct saa7164_port *port);
 596
 597 /* ----------------------------------------------------------- */
 598 /* saa7164-vbi.c                                            */
 599 int saa7164_vbi_register(struct saa7164_port *port);
 600 void saa7164_vbi_unregister(struct saa7164_port *port);
 601
 602 /* ----------------------------------------------------------- */
 603
 604 extern unsigned int crc_checking;
 605
 606 extern unsigned int saa_debug;
 607 #define dprintk(level, fmt, arg...)\
 608         do { if (saa_debug & level)\
 609                 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 610         } while (0)
 611
 612 #define log_warn(fmt, arg...)\
 613         do { \
 614                 printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 615         } while (0)
 616
 617 #define log_err(fmt, arg...)\
 618         do { \
 619                 printk(KERN_ERROR "%s: " fmt, dev->name, ## arg);\
 620         } while (0)
 621
 622 #define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 623 #define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
 624
 625 #define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 626 #define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
 627