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
 122 enum port_t {
 123         SAA7164_MPEG_UNDEFINED = 0,
 124         SAA7164_MPEG_DVB,
 125         SAA7164_MPEG_ENCODER,
 126         SAA7164_MPEG_VBI,
 127 };
 128
 129 enum saa7164_i2c_bus_nr {
 130         SAA7164_I2C_BUS_0 = 0,
 131         SAA7164_I2C_BUS_1,
 132         SAA7164_I2C_BUS_2,
 133 };
 134
 135 enum saa7164_buffer_flags {
 136         SAA7164_BUFFER_UNDEFINED = 0,
 137         SAA7164_BUFFER_FREE,
 138         SAA7164_BUFFER_BUSY,
 139         SAA7164_BUFFER_FULL
 140 };
 141
 142 enum 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  */
 160 struct 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
 169 struct 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
 181 struct saa7164_subid {
 182         u16     subvendor;
 183         u16     subdevice;
 184         u32     card;
 185 };
 186
 187 struct saa7164_encoder_fh {
 188         struct v4l2_fh fh;
 189         struct saa7164_port *port;
 190         atomic_t v4l_reading;
 191 };
 192
 193 struct saa7164_vbi_fh {
 194         struct v4l2_fh fh;
 195         struct saa7164_port *port;
 196         atomic_t v4l_reading;
 197 };
 198
 199 struct saa7164_histogram_bucket {
 200         u32 val;
 201         u32 count;
 202         u64 update_time;
 203 };
 204
 205 struct saa7164_histogram {
 206         char name[32];
 207         struct saa7164_histogram_bucket counter1[64];
 208 };
 209
 210 struct 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
 221 struct 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
 239 struct 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
 251 struct 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
 262 struct saa7164_tvnorm {
 263         char            *name;
 264         v4l2_std_id     id;
 265 };
 266
 267 struct 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
 284 struct 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
 301 struct saa7164_port;
 302
 303 struct 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
 331 struct 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
 430 struct 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
 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_getfirmwarestatus(struct saa7164_dev *dev);
 495 u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 496 void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 497
 498 /* ----------------------------------------------------------- */
 499 /* saa7164-fw.c                                                */
 500 int saa7164_downloadfirmware(struct saa7164_dev *dev);
 501
 502 /* ----------------------------------------------------------- */
 503 /* saa7164-i2c.c                                               */
 504 extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 505 extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 506 extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 507         unsigned int cmd, void *arg);
 508
 509 /* ----------------------------------------------------------- */
 510 /* saa7164-bus.c                                               */
 511 int saa7164_bus_setup(struct saa7164_dev *dev);
 512 void saa7164_bus_dump(struct saa7164_dev *dev);
 513 int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
 514         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,
 557         struct tmFwInfoStruct *i);
 558
 559 /* ----------------------------------------------------------- */
 560 /* saa7164-cards.c                                             */
 561 extern struct saa7164_board saa7164_boards[];
 562 extern const unsigned int saa7164_bcount;
 563
 564 extern struct saa7164_subid saa7164_subids[];
 565 extern const unsigned int saa7164_idcount;
 566
 567 extern void saa7164_card_list(struct saa7164_dev *dev);
 568 extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 569 extern void saa7164_card_setup(struct saa7164_dev *dev);
 570
 571 extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 572 extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 573 extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 574
 575 /* ----------------------------------------------------------- */
 576 /* saa7164-dvb.c                                               */
 577 extern int saa7164_dvb_register(struct saa7164_port *port);
 578 extern int saa7164_dvb_unregister(struct saa7164_port *port);
 579
 580 /* ----------------------------------------------------------- */
 581 /* saa7164-buffer.c                                            */
 582 extern struct saa7164_buffer *saa7164_buffer_alloc(
 583         struct saa7164_port *port, u32 len);
 584 extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 585 extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 586 extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 587 extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 588 extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 589         struct saa7164_dev *dev, u32 len);
 590 extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 591 extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 592
 593 /* ----------------------------------------------------------- */
 594 /* saa7164-encoder.c                                            */
 595 int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id);
 596 int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id);
 597 int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i);
 598 int saa7164_g_input(struct saa7164_port *port, unsigned int *i);
 599 int saa7164_s_input(struct saa7164_port *port, unsigned int i);
 600 int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
 601 int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t);
 602 int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f);
 603 int saa7164_s_frequency(struct saa7164_port *port,
 604                         const struct v4l2_frequency *f);
 605 int saa7164_encoder_register(struct saa7164_port *port);
 606 void saa7164_encoder_unregister(struct saa7164_port *port);
 607
 608 /* ----------------------------------------------------------- */
 609 /* saa7164-vbi.c                                            */
 610 int saa7164_vbi_register(struct saa7164_port *port);
 611 void saa7164_vbi_unregister(struct saa7164_port *port);
 612
 613 /* ----------------------------------------------------------- */
 614
 615 extern unsigned int crc_checking;
 616
 617 extern 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