LXR linux/drivers/media/pci/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/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 <media/videobuf-dma-sg.h>
  58#include <media/videobuf-dvb.h>
  59#include <dvb_demux.h>
  60#include <dvb_frontend.h>
  61#include <dvb_net.h>
  62#include <dvbdev.h>
  63#include <dmxdev.h>
  64#include <media/v4l2-common.h>
  65#include <media/v4l2-ioctl.h>
  66#include <media/v4l2-device.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
  87#define SAA7164_MAX_UNITS               8
  88#define SAA7164_TS_NUMBER_OF_LINES      312
  89#define SAA7164_PS_NUMBER_OF_LINES      256
  90#define SAA7164_PT_ENTRIES              16 /* (312 * 188) / 4096 */
  91#define SAA7164_MAX_ENCODER_BUFFERS     64 /* max 5secs of latency at 6Mbps */
  92#define SAA7164_MAX_VBI_BUFFERS         64
  93
  94/* Port related defines */
  95#define SAA7164_PORT_TS1        (0)
  96#define SAA7164_PORT_TS2        (SAA7164_PORT_TS1 + 1)
  97#define SAA7164_PORT_ENC1       (SAA7164_PORT_TS2 + 1)
  98#define SAA7164_PORT_ENC2       (SAA7164_PORT_ENC1 + 1)
  99#define SAA7164_PORT_VBI1       (SAA7164_PORT_ENC2 + 1)
 100#define SAA7164_PORT_VBI2       (SAA7164_PORT_VBI1 + 1)
 101#define SAA7164_MAX_PORTS       (SAA7164_PORT_VBI2 + 1)
 102
 103#define DBGLVL_FW    4
 104#define DBGLVL_DVB   8
 105#define DBGLVL_I2C  16
 106#define DBGLVL_API  32
 107#define DBGLVL_CMD  64
 108#define DBGLVL_BUS 128
 109#define DBGLVL_IRQ 256
 110#define DBGLVL_BUF 512
 111#define DBGLVL_ENC 1024
 112#define DBGLVL_VBI 2048
 113#define DBGLVL_THR 4096
 114#define DBGLVL_CPU 8192
 115
 116#define SAA7164_NORMS \
 117        (V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP |  V4L2_STD_NTSC_443)
 118
 119enum port_t {
 120        SAA7164_MPEG_UNDEFINED = 0,
 121        SAA7164_MPEG_DVB,
 122        SAA7164_MPEG_ENCODER,
 123        SAA7164_MPEG_VBI,
 124};
 125
 126enum saa7164_i2c_bus_nr {
 127        SAA7164_I2C_BUS_0 = 0,
 128        SAA7164_I2C_BUS_1,
 129        SAA7164_I2C_BUS_2,
 130};
 131
 132enum saa7164_buffer_flags {
 133        SAA7164_BUFFER_UNDEFINED = 0,
 134        SAA7164_BUFFER_FREE,
 135        SAA7164_BUFFER_BUSY,
 136        SAA7164_BUFFER_FULL
 137};
 138
 139enum 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 */
 157struct 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
 166struct 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
 178struct saa7164_subid {
 179        u16     subvendor;
 180        u16     subdevice;
 181        u32     card;
 182};
 183
 184struct saa7164_encoder_fh {
 185        struct saa7164_port *port;
 186        atomic_t v4l_reading;
 187};
 188
 189struct saa7164_vbi_fh {
 190        struct saa7164_port *port;
 191        atomic_t v4l_reading;
 192};
 193
 194struct saa7164_histogram_bucket {
 195        u32 val;
 196        u32 count;
 197        u64 update_time;
 198};
 199
 200struct saa7164_histogram {
 201        char name[32];
 202        struct saa7164_histogram_bucket counter1[64];
 203};
 204
 205struct saa7164_user_buffer {
 206        struct list_head list;
 207
 208        /* Attributes */
 209        u8  *data;
 210        u32 pos;
 211        u32 actual_size;
 212
 213        u32 crc;
 214};
 215
 216struct saa7164_fw_status {
 217
 218        /* RISC Core details */
 219        u32     status;
 220        u32     mode;
 221        u32     spec;
 222        u32     inst;
 223        u32     cpuload;
 224        u32     remainheap;
 225
 226        /* Firmware version */
 227        u32     version;
 228        u32     major;
 229        u32     sub;
 230        u32     rel;
 231        u32     buildnr;
 232};
 233
 234struct saa7164_dvb {
 235        struct mutex lock;
 236        struct dvb_adapter adapter;
 237        struct dvb_frontend *frontend;
 238        struct dvb_demux demux;
 239        struct dmxdev dmxdev;
 240        struct dmx_frontend fe_hw;
 241        struct dmx_frontend fe_mem;
 242        struct dvb_net net;
 243        int feeding;
 244};
 245
 246struct saa7164_i2c {
 247        struct saa7164_dev              *dev;
 248
 249        enum saa7164_i2c_bus_nr         nr;
 250
 251        /* I2C I/O */
 252        struct i2c_adapter              i2c_adap;
 253        struct i2c_client               i2c_client;
 254        u32                             i2c_rc;
 255};
 256
 257struct saa7164_ctrl {
 258        struct v4l2_queryctrl v;
 259};
 260
 261struct saa7164_tvnorm {
 262        char            *name;
 263        v4l2_std_id     id;
 264};
 265
 266struct saa7164_encoder_params {
 267        struct saa7164_tvnorm encodernorm;
 268        u32 height;
 269        u32 width;
 270        u32 is_50hz;
 271        u32 bitrate; /* bps */
 272        u32 bitrate_peak; /* bps */
 273        u32 bitrate_mode;
 274        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 275
 276        u32 audio_sampling_freq;
 277        u32 ctl_mute;
 278        u32 ctl_aspect;
 279        u32 refdist;
 280        u32 gop_size;
 281};
 282
 283struct saa7164_vbi_params {
 284        struct saa7164_tvnorm encodernorm;
 285        u32 height;
 286        u32 width;
 287        u32 is_50hz;
 288        u32 bitrate; /* bps */
 289        u32 bitrate_peak; /* bps */
 290        u32 bitrate_mode;
 291        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */
 292
 293        u32 audio_sampling_freq;
 294        u32 ctl_mute;
 295        u32 ctl_aspect;
 296        u32 refdist;
 297        u32 gop_size;
 298};
 299
 300struct saa7164_port;
 301
 302struct saa7164_buffer {
 303        struct list_head list;
 304
 305        /* Note of which h/w buffer list index position we occupy */
 306        int idx;
 307
 308        struct saa7164_port *port;
 309
 310        /* Hardware Specific */
 311        /* PCI Memory allocations */
 312        enum saa7164_buffer_flags flags; /* Free, Busy, Full */
 313
 314        /* A block of page align PCI memory */
 315        u32 pci_size;   /* PCI allocation size in bytes */
 316        u64 __iomem *cpu;       /* Virtual address */
 317        dma_addr_t dma; /* Physical address */
 318        u32 crc;        /* Checksum for the entire buffer data */
 319
 320        /* A page table that splits the block into a number of entries */
 321        u32 pt_size;            /* PCI allocation size in bytes */
 322        u64 __iomem *pt_cpu;            /* Virtual address */
 323        dma_addr_t pt_dma;      /* Physical address */
 324
 325        /* Encoder fops */
 326        u32 pos;
 327        u32 actual_size;
 328};
 329
 330struct saa7164_port {
 331
 332        struct saa7164_dev *dev;
 333        enum port_t type;
 334        int nr;
 335
 336        /* --- Generic port attributes --- */
 337
 338        /* HW stream parameters */
 339        struct tmHWStreamParameters hw_streamingparams;
 340
 341        /* DMA configuration values, is seeded during initialization */
 342        struct tmComResDMATermDescrHeader hwcfg;
 343
 344        /* hardware specific registers */
 345        u32 bufcounter;
 346        u32 pitch;
 347        u32 bufsize;
 348        u32 bufoffset;
 349        u32 bufptr32l;
 350        u32 bufptr32h;
 351        u64 bufptr64;
 352
 353        u32 numpte;     /* Number of entries in array, only valid in head */
 354
 355        struct mutex dmaqueue_lock;
 356        struct saa7164_buffer dmaqueue;
 357
 358        u64 last_irq_msecs, last_svc_msecs;
 359        u64 last_irq_msecs_diff, last_svc_msecs_diff;
 360        u32 last_svc_wp;
 361        u32 last_svc_rp;
 362        u64 last_irq_svc_msecs_diff;
 363        u64 last_read_msecs, last_read_msecs_diff;
 364        u64 last_poll_msecs, last_poll_msecs_diff;
 365
 366        struct saa7164_histogram irq_interval;
 367        struct saa7164_histogram svc_interval;
 368        struct saa7164_histogram irq_svc_interval;
 369        struct saa7164_histogram read_interval;
 370        struct saa7164_histogram poll_interval;
 371
 372        /* --- DVB Transport Specific --- */
 373        struct saa7164_dvb dvb;
 374
 375        /* --- Encoder/V4L related attributes --- */
 376        /* Encoder */
 377        /* Defaults established in saa7164-encoder.c */
 378        struct saa7164_tvnorm encodernorm;
 379        v4l2_std_id std;
 380        u32 height;
 381        u32 width;
 382        u32 freq;
 383        u32 ts_packet_size;
 384        u32 ts_packet_count;
 385        u8 mux_input;
 386        u8 encoder_profile;
 387        u8 video_format;
 388        u8 audio_format;
 389        u8 video_resolution;
 390        u16 ctl_brightness;
 391        u16 ctl_contrast;
 392        u16 ctl_hue;
 393        u16 ctl_saturation;
 394        u16 ctl_sharpness;
 395        s8 ctl_volume;
 396
 397        struct tmComResAFeatureDescrHeader audfeat;
 398        struct tmComResEncoderDescrHeader encunit;
 399        struct tmComResProcDescrHeader vidproc;
 400        struct tmComResExtDevDescrHeader ifunit;
 401        struct tmComResTunerDescrHeader tunerunit;
 402
 403        struct work_struct workenc;
 404
 405        /* V4L Encoder Video */
 406        struct saa7164_encoder_params encoder_params;
 407        struct video_device *v4l_device;
 408        atomic_t v4l_reader_count;
 409
 410        struct saa7164_buffer list_buf_used;
 411        struct saa7164_buffer list_buf_free;
 412        wait_queue_head_t wait_read;
 413
 414        /* V4L VBI */
 415        struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc;
 416        struct saa7164_vbi_params vbi_params;
 417
 418        /* Debug */
 419        u32 sync_errors;
 420        u32 v_cc_errors;
 421        u32 a_cc_errors;
 422        u8 last_v_cc;
 423        u8 last_a_cc;
 424        u32 done_first_interrupt;
 425};
 426
 427struct saa7164_dev {
 428        struct list_head        devlist;
 429        atomic_t                refcount;
 430
 431        struct v4l2_device v4l2_dev;
 432
 433        /* pci stuff */
 434        struct pci_dev  *pci;
 435        unsigned char   pci_rev, pci_lat;
 436        int             pci_bus, pci_slot;
 437        u32             __iomem *lmmio;
 438        u8              __iomem *bmmio;
 439        u32             __iomem *lmmio2;
 440        u8              __iomem *bmmio2;
 441        int             pci_irqmask;
 442
 443        /* board details */
 444        int     nr;
 445        int     hwrevision;
 446        u32     board;
 447        char    name[16];
 448
 449        /* firmware status */
 450        struct saa7164_fw_status        fw_status;
 451        u32                             firmwareloaded;
 452
 453        struct tmComResHWDescr          hwdesc;
 454        struct tmComResInterfaceDescr   intfdesc;
 455        struct tmComResBusDescr         busdesc;
 456
 457        struct tmComResBusInfo          bus;
 458
 459        /* Interrupt status and ack registers */
 460        u32 int_status;
 461        u32 int_ack;
 462
 463        struct cmd                      cmds[SAA_CMD_MAX_MSG_UNITS];
 464        struct mutex                    lock;
 465
 466        /* I2c related */
 467        struct saa7164_i2c i2c_bus[3];
 468
 469        /* Transport related */
 470        struct saa7164_port ports[SAA7164_MAX_PORTS];
 471
 472        /* Deferred command/api interrupts handling */
 473        struct work_struct workcmd;
 474
 475        /* A kernel thread to monitor the firmware log, used
 476         * only in debug mode.
 477         */
 478        struct task_struct *kthread;
 479
 480};
 481
 482extern struct list_head saa7164_devlist;
 483extern unsigned int waitsecs;
 484extern unsigned int encoder_buffers;
 485extern unsigned int vbi_buffers;
 486
 487/* ----------------------------------------------------------- */
 488/* saa7164-core.c                                              */
 489void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr);
 490void saa7164_getfirmwarestatus(struct saa7164_dev *dev);
 491u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev);
 492void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val);
 493
 494/* ----------------------------------------------------------- */
 495/* saa7164-fw.c                                                */
 496int saa7164_downloadfirmware(struct saa7164_dev *dev);
 497
 498/* ----------------------------------------------------------- */
 499/* saa7164-i2c.c                                               */
 500extern int saa7164_i2c_register(struct saa7164_i2c *bus);
 501extern int saa7164_i2c_unregister(struct saa7164_i2c *bus);
 502extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus,
 503        unsigned int cmd, void *arg);
 504
 505/* ----------------------------------------------------------- */
 506/* saa7164-bus.c                                               */
 507int saa7164_bus_setup(struct saa7164_dev *dev);
 508void saa7164_bus_dump(struct saa7164_dev *dev);
 509int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg,
 510        void *buf);
 511int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg,
 512        void *buf, int peekonly);
 513
 514/* ----------------------------------------------------------- */
 515/* saa7164-cmd.c                                               */
 516int saa7164_cmd_send(struct saa7164_dev *dev,
 517        u8 id, enum tmComResCmd command, u16 controlselector,
 518        u16 size, void *buf);
 519void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno);
 520int saa7164_irq_dequeue(struct saa7164_dev *dev);
 521
 522/* ----------------------------------------------------------- */
 523/* saa7164-api.c                                               */
 524int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version);
 525int saa7164_api_enum_subdevs(struct saa7164_dev *dev);
 526int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg,
 527        u32 datalen, u8 *data);
 528int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr,
 529        u32 datalen, u8 *data);
 530int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr,
 531        u32 datalen, u8 *data);
 532int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen);
 533int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 534int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin);
 535int saa7164_api_transition_port(struct saa7164_port *port, u8 mode);
 536int saa7164_api_initialize_dif(struct saa7164_port *port);
 537int saa7164_api_configure_dif(struct saa7164_port *port, u32 std);
 538int saa7164_api_set_encoder(struct saa7164_port *port);
 539int saa7164_api_get_encoder(struct saa7164_port *port);
 540int saa7164_api_set_aspect_ratio(struct saa7164_port *port);
 541int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl);
 542int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl);
 543int saa7164_api_set_videomux(struct saa7164_port *port);
 544int saa7164_api_audio_mute(struct saa7164_port *port, int mute);
 545int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level);
 546int saa7164_api_set_audio_std(struct saa7164_port *port);
 547int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect);
 548int saa7164_api_get_videomux(struct saa7164_port *port);
 549int saa7164_api_set_vbi_format(struct saa7164_port *port);
 550int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level);
 551int saa7164_api_collect_debug(struct saa7164_dev *dev);
 552int saa7164_api_get_load_info(struct saa7164_dev *dev,
 553        struct tmFwInfoStruct *i);
 554
 555/* ----------------------------------------------------------- */
 556/* saa7164-cards.c                                             */
 557extern struct saa7164_board saa7164_boards[];
 558extern const unsigned int saa7164_bcount;
 559
 560extern struct saa7164_subid saa7164_subids[];
 561extern const unsigned int saa7164_idcount;
 562
 563extern void saa7164_card_list(struct saa7164_dev *dev);
 564extern void saa7164_gpio_setup(struct saa7164_dev *dev);
 565extern void saa7164_card_setup(struct saa7164_dev *dev);
 566
 567extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr);
 568extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr);
 569extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid);
 570
 571/* ----------------------------------------------------------- */
 572/* saa7164-dvb.c                                               */
 573extern int saa7164_dvb_register(struct saa7164_port *port);
 574extern int saa7164_dvb_unregister(struct saa7164_port *port);
 575
 576/* ----------------------------------------------------------- */
 577/* saa7164-buffer.c                                            */
 578extern struct saa7164_buffer *saa7164_buffer_alloc(
 579        struct saa7164_port *port, u32 len);
 580extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf);
 581extern void saa7164_buffer_display(struct saa7164_buffer *buf);
 582extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i);
 583extern int saa7164_buffer_cfg_port(struct saa7164_port *port);
 584extern struct saa7164_user_buffer *saa7164_buffer_alloc_user(
 585        struct saa7164_dev *dev, u32 len);
 586extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf);
 587extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i);
 588
 589/* ----------------------------------------------------------- */
 590/* saa7164-encoder.c                                            */
 591int saa7164_encoder_register(struct saa7164_port *port);
 592void saa7164_encoder_unregister(struct saa7164_port *port);
 593
 594/* ----------------------------------------------------------- */
 595/* saa7164-vbi.c                                            */
 596int saa7164_vbi_register(struct saa7164_port *port);
 597void saa7164_vbi_unregister(struct saa7164_port *port);
 598
 599/* ----------------------------------------------------------- */
 600
 601extern unsigned int crc_checking;
 602
 603extern unsigned int saa_debug;
 604#define dprintk(level, fmt, arg...)\
 605        do { if (saa_debug & level)\
 606                printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\
 607        } while (0)
 608
 609#define log_warn(fmt, arg...)\
 610        do { \
 611                printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\
 612        } while (0)
 613
 614#define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2))
 615#define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2))
 616
 617#define saa7164_readb(reg)             readl(dev->bmmio + (reg))
 618#define saa7164_writeb(reg, value)     writel((value), dev->bmmio + (reg))
 619
 620