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) 125 126 enum port_t { 127 SAA7164_MPEG_UNDEFINED = 0, 128 SAA7164_MPEG_DVB, 129 SAA7164_MPEG_ENCODER, 130 SAA7164_MPEG_VBI, 131 }; 132 133 enum saa7164_i2c_bus_nr { 134 SAA7164_I2C_BUS_0 = 0, 135 SAA7164_I2C_BUS_1, 136 SAA7164_I2C_BUS_2, 137 }; 138 139 enum saa7164_buffer_flags { 140 SAA7164_BUFFER_UNDEFINED = 0, 141 SAA7164_BUFFER_FREE, 142 SAA7164_BUFFER_BUSY, 143 SAA7164_BUFFER_FULL 144 }; 145 146 enum 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 */ 164 struct 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 }; 172 173 struct 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 }; 184 185 struct saa7164_subid { 186 u16 subvendor; 187 u16 subdevice; 188 u32 card; 189 }; 190 191 struct saa7164_encoder_fh { 192 struct v4l2_fh fh; 193 struct saa7164_port *port; 194 atomic_t v4l_reading; 195 }; 196 197 struct saa7164_vbi_fh { 198 struct v4l2_fh fh; 199 struct saa7164_port *port; 200 atomic_t v4l_reading; 201 }; 202 203 struct saa7164_histogram_bucket { 204 u32 val; 205 u32 count; 206 u64 update_time; 207 }; 208 209 struct saa7164_histogram { 210 char name[32]; 211 struct saa7164_histogram_bucket counter1[64]; 212 }; 213 214 struct 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 }; 224 225 struct 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 }; 242 243 struct 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 }; 254 255 struct 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 }; 265 266 struct saa7164_tvnorm { 267 char *name; 268 v4l2_std_id id; 269 }; 270 271 struct saa7164_encoder_params { 272 struct saa7164_tvnorm encodernorm; 273 u32 height; 274 u32 width; 275 u32 is_50hz; 276 u32 bitrate; /* bps */ 277 u32 bitrate_peak; /* bps */ 278 u32 bitrate_mode; 279 u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */ 280 281 u32 audio_sampling_freq; 282 u32 ctl_mute; 283 u32 ctl_aspect; 284 u32 refdist; 285 u32 gop_size; 286 }; 287 288 struct saa7164_vbi_params { 289 struct saa7164_tvnorm encodernorm; 290 u32 height; 291 u32 width; 292 u32 is_50hz; 293 u32 bitrate; /* bps */ 294 u32 bitrate_peak; /* bps */ 295 u32 bitrate_mode; 296 u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */ 297 298 u32 audio_sampling_freq; 299 u32 ctl_mute; 300 u32 ctl_aspect; 301 u32 refdist; 302 u32 gop_size; 303 }; 304 305 struct saa7164_port; 306 307 struct saa7164_buffer { 308 struct list_head list; 309 310 /* Note of which h/w buffer list index position we occupy */ 311 int idx; 312 313 struct saa7164_port *port; 314 315 /* Hardware Specific */ 316 /* PCI Memory allocations */ 317 enum saa7164_buffer_flags flags; /* Free, Busy, Full */ 318 319 /* A block of page align PCI memory */ 320 u32 pci_size; /* PCI allocation size in bytes */ 321 u64 *cpu; /* Virtual address */ 322 dma_addr_t dma; /* Physical address */ 323 u32 crc; /* Checksum for the entire buffer data */ 324 325 /* A page table that splits the block into a number of entries */ 326 u32 pt_size; /* PCI allocation size in bytes */ 327 u64 *pt_cpu; /* Virtual address */ 328 dma_addr_t pt_dma; /* Physical address */ 329 330 /* Encoder fops */ 331 u32 pos; 332 u32 actual_size; 333 }; 334 335 struct saa7164_port { 336 337 struct saa7164_dev *dev; 338 enum port_t type; 339 int nr; 340 341 /* --- Generic port attributes --- */ 342 343 /* HW stream parameters */ 344 struct tmHWStreamParameters hw_streamingparams; 345 346 /* DMA configuration values, is seeded during initialization */ 347 struct tmComResDMATermDescrHeader hwcfg; 348 349 /* hardware specific registers */ 350 u32 bufcounter; 351 u32 pitch; 352 u32 bufsize; 353 u32 bufoffset; 354 u32 bufptr32l; 355 u32 bufptr32h; 356 u64 bufptr64; 357 358 u32 numpte; /* Number of entries in array, only valid in head */ 359 360 struct mutex dmaqueue_lock; 361 struct saa7164_buffer dmaqueue; 362 363 u64 last_irq_msecs, last_svc_msecs; 364 u64 last_irq_msecs_diff, last_svc_msecs_diff; 365 u32 last_svc_wp; 366 u32 last_svc_rp; 367 u64 last_irq_svc_msecs_diff; 368 u64 last_read_msecs, last_read_msecs_diff; 369 u64 last_poll_msecs, last_poll_msecs_diff; 370 371 struct saa7164_histogram irq_interval; 372 struct saa7164_histogram svc_interval; 373 struct saa7164_histogram irq_svc_interval; 374 struct saa7164_histogram read_interval; 375 struct saa7164_histogram poll_interval; 376 377 /* --- DVB Transport Specific --- */ 378 struct saa7164_dvb dvb; 379 struct i2c_client *i2c_client_demod; 380 struct i2c_client *i2c_client_tuner; 381 382 /* --- Encoder/V4L related attributes --- */ 383 /* Encoder */ 384 /* Defaults established in saa7164-encoder.c */ 385 struct saa7164_tvnorm encodernorm; 386 struct v4l2_ctrl_handler ctrl_handler; 387 v4l2_std_id std; 388 u32 height; 389 u32 width; 390 u32 freq; 391 u8 mux_input; 392 u8 encoder_profile; 393 u8 video_format; 394 u8 audio_format; 395 u8 video_resolution; 396 u16 ctl_brightness; 397 u16 ctl_contrast; 398 u16 ctl_hue; 399 u16 ctl_saturation; 400 u16 ctl_sharpness; 401 s8 ctl_volume; 402 403 struct tmComResAFeatureDescrHeader audfeat; 404 struct tmComResEncoderDescrHeader encunit; 405 struct tmComResProcDescrHeader vidproc; 406 struct tmComResExtDevDescrHeader ifunit; 407 struct tmComResTunerDescrHeader tunerunit; 408 409 struct work_struct workenc; 410 411 /* V4L Encoder Video */ 412 struct saa7164_encoder_params encoder_params; 413 struct video_device *v4l_device; 414 atomic_t v4l_reader_count; 415 416 struct saa7164_buffer list_buf_used; 417 struct saa7164_buffer list_buf_free; 418 wait_queue_head_t wait_read; 419 420 /* V4L VBI */ 421 struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc; 422 struct saa7164_vbi_params vbi_params; 423 struct saa7164_port *enc_port; 424 425 /* Debug */ 426 u32 sync_errors; 427 u32 v_cc_errors; 428 u32 a_cc_errors; 429 u8 last_v_cc; 430 u8 last_a_cc; 431 u32 done_first_interrupt; 432 }; 433 434 struct saa7164_dev { 435 struct list_head devlist; 436 atomic_t refcount; 437 438 struct v4l2_device v4l2_dev; 439 440 /* pci stuff */ 441 struct pci_dev *pci; 442 unsigned char pci_rev, pci_lat; 443 int pci_bus, pci_slot; 444 u32 __iomem *lmmio; 445 u8 __iomem *bmmio; 446 u32 __iomem *lmmio2; 447 u8 __iomem *bmmio2; 448 int pci_irqmask; 449 450 /* board details */ 451 int nr; 452 int hwrevision; 453 u32 board; 454 char name[16]; 455 456 /* firmware status */ 457 struct saa7164_fw_status fw_status; 458 u32 firmwareloaded; 459 460 struct tmComResHWDescr hwdesc; 461 struct tmComResInterfaceDescr intfdesc; 462 struct tmComResBusDescr busdesc; 463 464 struct tmComResBusInfo bus; 465 466 /* Interrupt status and ack registers */ 467 u32 int_status; 468 u32 int_ack; 469 bool msi; 470 471 struct cmd cmds[SAA_CMD_MAX_MSG_UNITS]; 472 struct mutex lock; 473 474 /* I2c related */ 475 struct saa7164_i2c i2c_bus[3]; 476 477 /* Transport related */ 478 struct saa7164_port ports[SAA7164_MAX_PORTS]; 479 480 /* Deferred command/api interrupts handling */ 481 struct work_struct workcmd; 482 483 /* A kernel thread to monitor the firmware log, used 484 * only in debug mode. 485 */ 486 struct task_struct *kthread; 487 488 }; 489 490 extern struct list_head saa7164_devlist; 491 extern unsigned int waitsecs; 492 extern unsigned int encoder_buffers; 493 extern unsigned int vbi_buffers; 494 495 /* ----------------------------------------------------------- */ 496 /* saa7164-core.c */ 497 void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr); 498 void saa7164_getfirmwarestatus(struct saa7164_dev *dev); 499 u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev); 500 void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val); 501 502 /* ----------------------------------------------------------- */ 503 /* saa7164-fw.c */ 504 int saa7164_downloadfirmware(struct saa7164_dev *dev); 505 506 /* ----------------------------------------------------------- */ 507 /* saa7164-i2c.c */ 508 extern int saa7164_i2c_register(struct saa7164_i2c *bus); 509 extern int saa7164_i2c_unregister(struct saa7164_i2c *bus); 510 extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus, 511 unsigned int cmd, void *arg); 512 513 /* ----------------------------------------------------------- */ 514 /* saa7164-bus.c */ 515 int saa7164_bus_setup(struct saa7164_dev *dev); 516 void saa7164_bus_dump(struct saa7164_dev *dev); 517 int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg, 518 void *buf); 519 int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg, 520 void *buf, int peekonly); 521 522 /* ----------------------------------------------------------- */ 523 /* saa7164-cmd.c */ 524 int saa7164_cmd_send(struct saa7164_dev *dev, 525 u8 id, enum tmComResCmd command, u16 controlselector, 526 u16 size, void *buf); 527 void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno); 528 int saa7164_irq_dequeue(struct saa7164_dev *dev); 529 530 /* ----------------------------------------------------------- */ 531 /* saa7164-api.c */ 532 int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version); 533 int saa7164_api_enum_subdevs(struct saa7164_dev *dev); 534 int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg, 535 u32 datalen, u8 *data); 536 int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, 537 u32 datalen, u8 *data); 538 int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr, 539 u32 datalen, u8 *data); 540 int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen); 541 int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin); 542 int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin); 543 int saa7164_api_transition_port(struct saa7164_port *port, u8 mode); 544 int saa7164_api_initialize_dif(struct saa7164_port *port); 545 int saa7164_api_configure_dif(struct saa7164_port *port, u32 std); 546 int saa7164_api_set_encoder(struct saa7164_port *port); 547 int saa7164_api_get_encoder(struct saa7164_port *port); 548 int saa7164_api_set_aspect_ratio(struct saa7164_port *port); 549 int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl); 550 int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl); 551 int saa7164_api_set_videomux(struct saa7164_port *port); 552 int saa7164_api_audio_mute(struct saa7164_port *port, int mute); 553 int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level); 554 int saa7164_api_set_audio_std(struct saa7164_port *port); 555 int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect); 556 int saa7164_api_get_videomux(struct saa7164_port *port); 557 int saa7164_api_set_vbi_format(struct saa7164_port *port); 558 int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level); 559 int saa7164_api_collect_debug(struct saa7164_dev *dev); 560 int saa7164_api_get_load_info(struct saa7164_dev *dev, 561 struct tmFwInfoStruct *i); 562 563 /* ----------------------------------------------------------- */ 564 /* saa7164-cards.c */ 565 extern struct saa7164_board saa7164_boards[]; 566 extern const unsigned int saa7164_bcount; 567 568 extern struct saa7164_subid saa7164_subids[]; 569 extern const unsigned int saa7164_idcount; 570 571 extern void saa7164_card_list(struct saa7164_dev *dev); 572 extern void saa7164_gpio_setup(struct saa7164_dev *dev); 573 extern void saa7164_card_setup(struct saa7164_dev *dev); 574 575 extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr); 576 extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr); 577 extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid); 578 579 /* ----------------------------------------------------------- */ 580 /* saa7164-dvb.c */ 581 extern int saa7164_dvb_register(struct saa7164_port *port); 582 extern int saa7164_dvb_unregister(struct saa7164_port *port); 583 584 /* ----------------------------------------------------------- */ 585 /* saa7164-buffer.c */ 586 extern struct saa7164_buffer *saa7164_buffer_alloc( 587 struct saa7164_port *port, u32 len); 588 extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf); 589 extern void saa7164_buffer_display(struct saa7164_buffer *buf); 590 extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i); 591 extern int saa7164_buffer_cfg_port(struct saa7164_port *port); 592 extern struct saa7164_user_buffer *saa7164_buffer_alloc_user( 593 struct saa7164_dev *dev, u32 len); 594 extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf); 595 extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i); 596 597 /* ----------------------------------------------------------- */ 598 /* saa7164-encoder.c */ 599 int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id); 600 int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id); 601 int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i); 602 int saa7164_g_input(struct saa7164_port *port, unsigned int *i); 603 int saa7164_s_input(struct saa7164_port *port, unsigned int i); 604 int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t); 605 int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t); 606 int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f); 607 int saa7164_s_frequency(struct saa7164_port *port, 608 const struct v4l2_frequency *f); 609 int saa7164_encoder_register(struct saa7164_port *port); 610 void saa7164_encoder_unregister(struct saa7164_port *port); 611 612 /* ----------------------------------------------------------- */ 613 /* saa7164-vbi.c */ 614 int saa7164_vbi_register(struct saa7164_port *port); 615 void saa7164_vbi_unregister(struct saa7164_port *port); 616 617 /* ----------------------------------------------------------- */ 618 619 extern unsigned int crc_checking; 620 621 extern unsigned int saa_debug; 622 #define dprintk(level, fmt, arg...)\ 623 do { if (saa_debug & level)\ 624 printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\ 625 } while (0) 626 627 #define log_warn(fmt, arg...)\ 628 do { \ 629 printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\ 630 } while (0) 631 632 #define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2)) 633 #define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2)) 634 635 #define saa7164_readb(reg) readl(dev->bmmio + (reg)) 636 #define saa7164_writeb(reg, value) writel((value), dev->bmmio + (reg)) 637 638