1 /*- 2 * Copyright (c) 2005 Ruslan Ermilov 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/param.h> 28 #include <sys/bus.h> 29 #include <sys/kernel.h> 30 #include <sys/lock.h> 31 #include <sys/module.h> 32 #include <sys/mutex.h> 33 #include <sys/systm.h> 34 35 #include <machine/bus.h> 36 #include <machine/resource.h> 37 #include <sys/rman.h> 38 39 #include <dev/pci/pcivar.h> 40 #include <dev/pci/pcireg.h> 41 42 #include <dev/smbus/smbconf.h> 43 #include "smbus_if.h" 44 45 #define NFSMB_DEBUG(x) if (nfsmb_debug) (x) 46 47 #ifdef DEBUG 48 static int nfsmb_debug = 1; 49 #else 50 static int nfsmb_debug = 0; 51 #endif 52 53 /* NVIDIA nForce2/3/4 MCP */ 54 #define NFSMB_VENDORID_NVIDIA 0x10de 55 #define NFSMB_DEVICEID_NF2_SMB 0x0064 56 #define NFSMB_DEVICEID_NF2_ULTRA_SMB 0x0084 57 #define NFSMB_DEVICEID_NF3_PRO150_SMB 0x00d4 58 #define NFSMB_DEVICEID_NF3_250GB_SMB 0x00e4 59 #define NFSMB_DEVICEID_NF4_SMB 0x0052 60 #define NFSMB_DEVICEID_NF4_04_SMB 0x0034 61 #define NFSMB_DEVICEID_NF4_51_SMB 0x0264 62 #define NFSMB_DEVICEID_NF4_55_SMB 0x0368 63 #define NFSMB_DEVICEID_NF4_61_SMB 0x03eb 64 #define NFSMB_DEVICEID_NF4_65_SMB 0x0446 65 #define NFSMB_DEVICEID_NF4_67_SMB 0x0542 66 #define NFSMB_DEVICEID_NF4_73_SMB 0x07d8 67 #define NFSMB_DEVICEID_NF4_78S_SMB 0x0752 68 #define NFSMB_DEVICEID_NF4_79_SMB 0x0aa2 69 70 /* PCI Configuration space registers */ 71 #define NF2PCI_SMBASE_1 PCIR_BAR(4) 72 #define NF2PCI_SMBASE_2 PCIR_BAR(5) 73 74 /* 75 * ACPI 3.0, Chapter 12, SMBus Host Controller Interface. 76 */ 77 #define SMB_PRTCL 0x00 /* protocol */ 78 #define SMB_STS 0x01 /* status */ 79 #define SMB_ADDR 0x02 /* address */ 80 #define SMB_CMD 0x03 /* command */ 81 #define SMB_DATA 0x04 /* 32 data registers */ 82 #define SMB_BCNT 0x24 /* number of data bytes */ 83 #define SMB_ALRM_A 0x25 /* alarm address */ 84 #define SMB_ALRM_D 0x26 /* 2 bytes alarm data */ 85 86 #define SMB_STS_DONE 0x80 87 #define SMB_STS_ALRM 0x40 88 #define SMB_STS_RES 0x20 89 #define SMB_STS_STATUS 0x1f 90 #define SMB_STS_OK 0x00 /* OK */ 91 #define SMB_STS_UF 0x07 /* Unknown Failure */ 92 #define SMB_STS_DANA 0x10 /* Device Address Not Acknowledged */ 93 #define SMB_STS_DED 0x11 /* Device Error Detected */ 94 #define SMB_STS_DCAD 0x12 /* Device Command Access Denied */ 95 #define SMB_STS_UE 0x13 /* Unknown Error */ 96 #define SMB_STS_DAD 0x17 /* Device Access Denied */ 97 #define SMB_STS_T 0x18 /* Timeout */ 98 #define SMB_STS_HUP 0x19 /* Host Unsupported Protocol */ 99 #define SMB_STS_B 0x1A /* Busy */ 100 #define SMB_STS_PEC 0x1F /* PEC (CRC-8) Error */ 101 102 #define SMB_PRTCL_WRITE 0x00 103 #define SMB_PRTCL_READ 0x01 104 #define SMB_PRTCL_QUICK 0x02 105 #define SMB_PRTCL_BYTE 0x04 106 #define SMB_PRTCL_BYTE_DATA 0x06 107 #define SMB_PRTCL_WORD_DATA 0x08 108 #define SMB_PRTCL_BLOCK_DATA 0x0a 109 #define SMB_PRTCL_PROC_CALL 0x0c 110 #define SMB_PRTCL_BLOCK_PROC_CALL 0x0d 111 #define SMB_PRTCL_PEC 0x80 112 113 struct nfsmb_softc { 114 int rid; 115 struct resource *res; 116 device_t smbus; 117 device_t subdev; 118 struct mtx lock; 119 }; 120 121 #define NFSMB_LOCK(nfsmb) mtx_lock(&(nfsmb)->lock) 122 #define NFSMB_UNLOCK(nfsmb) mtx_unlock(&(nfsmb)->lock) 123 #define NFSMB_LOCK_ASSERT(nfsmb) mtx_assert(&(nfsmb)->lock, MA_OWNED) 124 125 #define NFSMB_SMBINB(nfsmb, register) \ 126 (bus_read_1(nfsmb->res, register)) 127 #define NFSMB_SMBOUTB(nfsmb, register, value) \ 128 (bus_write_1(nfsmb->res, register, value)) 129 130 static int nfsmb_detach(device_t dev); 131 static int nfsmbsub_detach(device_t dev); 132 133 static int 134 nfsmbsub_probe(device_t dev) 135 { 136 137 device_set_desc(dev, "nForce2/3/4 MCP SMBus Controller"); 138 return (BUS_PROBE_DEFAULT); 139 } 140 141 static int 142 nfsmb_probe(device_t dev) 143 { 144 u_int16_t vid; 145 u_int16_t did; 146 147 vid = pci_get_vendor(dev); 148 did = pci_get_device(dev); 149 150 if (vid == NFSMB_VENDORID_NVIDIA) { 151 switch(did) { 152 case NFSMB_DEVICEID_NF2_SMB: 153 case NFSMB_DEVICEID_NF2_ULTRA_SMB: 154 case NFSMB_DEVICEID_NF3_PRO150_SMB: 155 case NFSMB_DEVICEID_NF3_250GB_SMB: 156 case NFSMB_DEVICEID_NF4_SMB: 157 case NFSMB_DEVICEID_NF4_04_SMB: 158 case NFSMB_DEVICEID_NF4_51_SMB: 159 case NFSMB_DEVICEID_NF4_55_SMB: 160 case NFSMB_DEVICEID_NF4_61_SMB: 161 case NFSMB_DEVICEID_NF4_65_SMB: 162 case NFSMB_DEVICEID_NF4_67_SMB: 163 case NFSMB_DEVICEID_NF4_73_SMB: 164 case NFSMB_DEVICEID_NF4_78S_SMB: 165 case NFSMB_DEVICEID_NF4_79_SMB: 166 device_set_desc(dev, "nForce2/3/4 MCP SMBus Controller"); 167 return (BUS_PROBE_DEFAULT); 168 } 169 } 170 171 return (ENXIO); 172 } 173 174 static int 175 nfsmbsub_attach(device_t dev) 176 { 177 device_t parent; 178 struct nfsmb_softc *nfsmbsub_sc = device_get_softc(dev); 179 180 parent = device_get_parent(dev); 181 182 nfsmbsub_sc->rid = NF2PCI_SMBASE_2; 183 184 nfsmbsub_sc->res = bus_alloc_resource_any(parent, SYS_RES_IOPORT, 185 &nfsmbsub_sc->rid, RF_ACTIVE); 186 if (nfsmbsub_sc->res == NULL) { 187 /* Older incarnations of the device used non-standard BARs. */ 188 nfsmbsub_sc->rid = 0x54; 189 nfsmbsub_sc->res = bus_alloc_resource_any(parent, 190 SYS_RES_IOPORT, &nfsmbsub_sc->rid, RF_ACTIVE); 191 if (nfsmbsub_sc->res == NULL) { 192 device_printf(dev, "could not map i/o space\n"); 193 return (ENXIO); 194 } 195 } 196 mtx_init(&nfsmbsub_sc->lock, device_get_nameunit(dev), "nfsmb", 197 MTX_DEF); 198 199 nfsmbsub_sc->smbus = device_add_child(dev, "smbus", -1); 200 if (nfsmbsub_sc->smbus == NULL) { 201 nfsmbsub_detach(dev); 202 return (EINVAL); 203 } 204 205 bus_generic_attach(dev); 206 207 return (0); 208 } 209 210 static int 211 nfsmb_attach(device_t dev) 212 { 213 struct nfsmb_softc *nfsmb_sc = device_get_softc(dev); 214 215 /* Allocate I/O space */ 216 nfsmb_sc->rid = NF2PCI_SMBASE_1; 217 218 nfsmb_sc->res = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 219 &nfsmb_sc->rid, RF_ACTIVE); 220 221 if (nfsmb_sc->res == NULL) { 222 /* Older incarnations of the device used non-standard BARs. */ 223 nfsmb_sc->rid = 0x50; 224 nfsmb_sc->res = bus_alloc_resource_any(dev, 225 SYS_RES_IOPORT, &nfsmb_sc->rid, RF_ACTIVE); 226 if (nfsmb_sc->res == NULL) { 227 device_printf(dev, "could not map i/o space\n"); 228 return (ENXIO); 229 } 230 } 231 232 mtx_init(&nfsmb_sc->lock, device_get_nameunit(dev), "nfsmb", MTX_DEF); 233 234 /* Allocate a new smbus device */ 235 nfsmb_sc->smbus = device_add_child(dev, "smbus", -1); 236 if (!nfsmb_sc->smbus) { 237 nfsmb_detach(dev); 238 return (EINVAL); 239 } 240 241 nfsmb_sc->subdev = NULL; 242 switch (pci_get_device(dev)) { 243 case NFSMB_DEVICEID_NF2_SMB: 244 case NFSMB_DEVICEID_NF2_ULTRA_SMB: 245 case NFSMB_DEVICEID_NF3_PRO150_SMB: 246 case NFSMB_DEVICEID_NF3_250GB_SMB: 247 case NFSMB_DEVICEID_NF4_SMB: 248 case NFSMB_DEVICEID_NF4_04_SMB: 249 case NFSMB_DEVICEID_NF4_51_SMB: 250 case NFSMB_DEVICEID_NF4_55_SMB: 251 case NFSMB_DEVICEID_NF4_61_SMB: 252 case NFSMB_DEVICEID_NF4_65_SMB: 253 case NFSMB_DEVICEID_NF4_67_SMB: 254 case NFSMB_DEVICEID_NF4_73_SMB: 255 case NFSMB_DEVICEID_NF4_78S_SMB: 256 case NFSMB_DEVICEID_NF4_79_SMB: 257 /* Trying to add secondary device as slave */ 258 nfsmb_sc->subdev = device_add_child(dev, "nfsmb", -1); 259 if (!nfsmb_sc->subdev) { 260 nfsmb_detach(dev); 261 return (EINVAL); 262 } 263 break; 264 default: 265 break; 266 } 267 268 bus_generic_attach(dev); 269 270 return (0); 271 } 272 273 static int 274 nfsmbsub_detach(device_t dev) 275 { 276 device_t parent; 277 struct nfsmb_softc *nfsmbsub_sc = device_get_softc(dev); 278 279 parent = device_get_parent(dev); 280 281 if (nfsmbsub_sc->smbus) { 282 device_delete_child(dev, nfsmbsub_sc->smbus); 283 nfsmbsub_sc->smbus = NULL; 284 } 285 mtx_destroy(&nfsmbsub_sc->lock); 286 if (nfsmbsub_sc->res) { 287 bus_release_resource(parent, SYS_RES_IOPORT, nfsmbsub_sc->rid, 288 nfsmbsub_sc->res); 289 nfsmbsub_sc->res = NULL; 290 } 291 return (0); 292 } 293 294 static int 295 nfsmb_detach(device_t dev) 296 { 297 struct nfsmb_softc *nfsmb_sc = device_get_softc(dev); 298 299 if (nfsmb_sc->subdev) { 300 device_delete_child(dev, nfsmb_sc->subdev); 301 nfsmb_sc->subdev = NULL; 302 } 303 304 if (nfsmb_sc->smbus) { 305 device_delete_child(dev, nfsmb_sc->smbus); 306 nfsmb_sc->smbus = NULL; 307 } 308 309 mtx_destroy(&nfsmb_sc->lock); 310 if (nfsmb_sc->res) { 311 bus_release_resource(dev, SYS_RES_IOPORT, nfsmb_sc->rid, 312 nfsmb_sc->res); 313 nfsmb_sc->res = NULL; 314 } 315 316 return (0); 317 } 318 319 static int 320 nfsmb_callback(device_t dev, int index, void *data) 321 { 322 int error = 0; 323 324 switch (index) { 325 case SMB_REQUEST_BUS: 326 case SMB_RELEASE_BUS: 327 break; 328 default: 329 error = EINVAL; 330 } 331 332 return (error); 333 } 334 335 static int 336 nfsmb_wait(struct nfsmb_softc *sc) 337 { 338 u_char sts; 339 int error, count; 340 341 NFSMB_LOCK_ASSERT(sc); 342 if (NFSMB_SMBINB(sc, SMB_PRTCL) != 0) 343 { 344 count = 10000; 345 do { 346 DELAY(500); 347 } while (NFSMB_SMBINB(sc, SMB_PRTCL) != 0 && count--); 348 if (count == 0) 349 return (SMB_ETIMEOUT); 350 } 351 352 sts = NFSMB_SMBINB(sc, SMB_STS) & SMB_STS_STATUS; 353 NFSMB_DEBUG(printf("nfsmb: STS=0x%x\n", sts)); 354 355 switch (sts) { 356 case SMB_STS_OK: 357 error = SMB_ENOERR; 358 break; 359 case SMB_STS_DANA: 360 error = SMB_ENOACK; 361 break; 362 case SMB_STS_B: 363 error = SMB_EBUSY; 364 break; 365 case SMB_STS_T: 366 error = SMB_ETIMEOUT; 367 break; 368 case SMB_STS_DCAD: 369 case SMB_STS_DAD: 370 case SMB_STS_HUP: 371 error = SMB_ENOTSUPP; 372 break; 373 default: 374 error = SMB_EBUSERR; 375 break; 376 } 377 378 return (error); 379 } 380 381 static int 382 nfsmb_quick(device_t dev, u_char slave, int how) 383 { 384 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 385 u_char protocol; 386 int error; 387 388 protocol = SMB_PRTCL_QUICK; 389 390 switch (how) { 391 case SMB_QWRITE: 392 protocol |= SMB_PRTCL_WRITE; 393 NFSMB_DEBUG(printf("nfsmb: QWRITE to 0x%x", slave)); 394 break; 395 case SMB_QREAD: 396 protocol |= SMB_PRTCL_READ; 397 NFSMB_DEBUG(printf("nfsmb: QREAD to 0x%x", slave)); 398 break; 399 default: 400 panic("%s: unknown QUICK command (%x)!", __func__, how); 401 } 402 403 NFSMB_LOCK(sc); 404 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 405 NFSMB_SMBOUTB(sc, SMB_PRTCL, protocol); 406 407 error = nfsmb_wait(sc); 408 409 NFSMB_DEBUG(printf(", error=0x%x\n", error)); 410 NFSMB_UNLOCK(sc); 411 412 return (error); 413 } 414 415 static int 416 nfsmb_sendb(device_t dev, u_char slave, char byte) 417 { 418 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 419 int error; 420 421 NFSMB_LOCK(sc); 422 NFSMB_SMBOUTB(sc, SMB_CMD, byte); 423 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 424 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BYTE); 425 426 error = nfsmb_wait(sc); 427 428 NFSMB_DEBUG(printf("nfsmb: SENDB to 0x%x, byte=0x%x, error=0x%x\n", slave, byte, error)); 429 NFSMB_UNLOCK(sc); 430 431 return (error); 432 } 433 434 static int 435 nfsmb_recvb(device_t dev, u_char slave, char *byte) 436 { 437 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 438 int error; 439 440 NFSMB_LOCK(sc); 441 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 442 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BYTE); 443 444 if ((error = nfsmb_wait(sc)) == SMB_ENOERR) 445 *byte = NFSMB_SMBINB(sc, SMB_DATA); 446 447 NFSMB_DEBUG(printf("nfsmb: RECVB from 0x%x, byte=0x%x, error=0x%x\n", slave, *byte, error)); 448 NFSMB_UNLOCK(sc); 449 450 return (error); 451 } 452 453 static int 454 nfsmb_writeb(device_t dev, u_char slave, char cmd, char byte) 455 { 456 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 457 int error; 458 459 NFSMB_LOCK(sc); 460 NFSMB_SMBOUTB(sc, SMB_CMD, cmd); 461 NFSMB_SMBOUTB(sc, SMB_DATA, byte); 462 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 463 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BYTE_DATA); 464 465 error = nfsmb_wait(sc); 466 467 NFSMB_DEBUG(printf("nfsmb: WRITEB to 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, byte, error)); 468 NFSMB_UNLOCK(sc); 469 470 return (error); 471 } 472 473 static int 474 nfsmb_readb(device_t dev, u_char slave, char cmd, char *byte) 475 { 476 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 477 int error; 478 479 NFSMB_LOCK(sc); 480 NFSMB_SMBOUTB(sc, SMB_CMD, cmd); 481 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 482 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BYTE_DATA); 483 484 if ((error = nfsmb_wait(sc)) == SMB_ENOERR) 485 *byte = NFSMB_SMBINB(sc, SMB_DATA); 486 487 NFSMB_DEBUG(printf("nfsmb: READB from 0x%x, cmd=0x%x, byte=0x%x, error=0x%x\n", slave, cmd, (unsigned char)*byte, error)); 488 NFSMB_UNLOCK(sc); 489 490 return (error); 491 } 492 493 static int 494 nfsmb_writew(device_t dev, u_char slave, char cmd, short word) 495 { 496 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 497 int error; 498 499 NFSMB_LOCK(sc); 500 NFSMB_SMBOUTB(sc, SMB_CMD, cmd); 501 NFSMB_SMBOUTB(sc, SMB_DATA, word); 502 NFSMB_SMBOUTB(sc, SMB_DATA + 1, word >> 8); 503 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 504 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_WORD_DATA); 505 506 error = nfsmb_wait(sc); 507 508 NFSMB_DEBUG(printf("nfsmb: WRITEW to 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, word, error)); 509 NFSMB_UNLOCK(sc); 510 511 return (error); 512 } 513 514 static int 515 nfsmb_readw(device_t dev, u_char slave, char cmd, short *word) 516 { 517 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 518 int error; 519 520 NFSMB_LOCK(sc); 521 NFSMB_SMBOUTB(sc, SMB_CMD, cmd); 522 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 523 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_WORD_DATA); 524 525 if ((error = nfsmb_wait(sc)) == SMB_ENOERR) 526 *word = NFSMB_SMBINB(sc, SMB_DATA) | 527 (NFSMB_SMBINB(sc, SMB_DATA + 1) << 8); 528 529 NFSMB_DEBUG(printf("nfsmb: READW from 0x%x, cmd=0x%x, word=0x%x, error=0x%x\n", slave, cmd, (unsigned short)*word, error)); 530 NFSMB_UNLOCK(sc); 531 532 return (error); 533 } 534 535 static int 536 nfsmb_bwrite(device_t dev, u_char slave, char cmd, u_char count, char *buf) 537 { 538 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 539 u_char i; 540 int error; 541 542 if (count < 1 || count > 32) 543 return (SMB_EINVAL); 544 545 NFSMB_LOCK(sc); 546 NFSMB_SMBOUTB(sc, SMB_CMD, cmd); 547 NFSMB_SMBOUTB(sc, SMB_BCNT, count); 548 for (i = 0; i < count; i++) 549 NFSMB_SMBOUTB(sc, SMB_DATA + i, buf[i]); 550 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 551 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_WRITE | SMB_PRTCL_BLOCK_DATA); 552 553 error = nfsmb_wait(sc); 554 555 NFSMB_DEBUG(printf("nfsmb: WRITEBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, count, cmd, error)); 556 NFSMB_UNLOCK(sc); 557 558 return (error); 559 } 560 561 static int 562 nfsmb_bread(device_t dev, u_char slave, char cmd, u_char *count, char *buf) 563 { 564 struct nfsmb_softc *sc = (struct nfsmb_softc *)device_get_softc(dev); 565 u_char data, len, i; 566 int error; 567 568 if (*count < 1 || *count > 32) 569 return (SMB_EINVAL); 570 571 NFSMB_LOCK(sc); 572 NFSMB_SMBOUTB(sc, SMB_CMD, cmd); 573 NFSMB_SMBOUTB(sc, SMB_ADDR, slave); 574 NFSMB_SMBOUTB(sc, SMB_PRTCL, SMB_PRTCL_READ | SMB_PRTCL_BLOCK_DATA); 575 576 if ((error = nfsmb_wait(sc)) == SMB_ENOERR) { 577 len = NFSMB_SMBINB(sc, SMB_BCNT); 578 for (i = 0; i < len; i++) { 579 data = NFSMB_SMBINB(sc, SMB_DATA + i); 580 if (i < *count) 581 buf[i] = data; 582 } 583 *count = len; 584 } 585 586 NFSMB_DEBUG(printf("nfsmb: READBLK to 0x%x, count=0x%x, cmd=0x%x, error=0x%x", slave, *count, cmd, error)); 587 NFSMB_UNLOCK(sc); 588 589 return (error); 590 } 591 592 static device_method_t nfsmb_methods[] = { 593 /* Device interface */ 594 DEVMETHOD(device_probe, nfsmb_probe), 595 DEVMETHOD(device_attach, nfsmb_attach), 596 DEVMETHOD(device_detach, nfsmb_detach), 597 598 /* SMBus interface */ 599 DEVMETHOD(smbus_callback, nfsmb_callback), 600 DEVMETHOD(smbus_quick, nfsmb_quick), 601 DEVMETHOD(smbus_sendb, nfsmb_sendb), 602 DEVMETHOD(smbus_recvb, nfsmb_recvb), 603 DEVMETHOD(smbus_writeb, nfsmb_writeb), 604 DEVMETHOD(smbus_readb, nfsmb_readb), 605 DEVMETHOD(smbus_writew, nfsmb_writew), 606 DEVMETHOD(smbus_readw, nfsmb_readw), 607 DEVMETHOD(smbus_bwrite, nfsmb_bwrite), 608 DEVMETHOD(smbus_bread, nfsmb_bread), 609 { 0, 0 } 610 }; 611 612 static device_method_t nfsmbsub_methods[] = { 613 /* Device interface */ 614 DEVMETHOD(device_probe, nfsmbsub_probe), 615 DEVMETHOD(device_attach, nfsmbsub_attach), 616 DEVMETHOD(device_detach, nfsmbsub_detach), 617 618 /* SMBus interface */ 619 DEVMETHOD(smbus_callback, nfsmb_callback), 620 DEVMETHOD(smbus_quick, nfsmb_quick), 621 DEVMETHOD(smbus_sendb, nfsmb_sendb), 622 DEVMETHOD(smbus_recvb, nfsmb_recvb), 623 DEVMETHOD(smbus_writeb, nfsmb_writeb), 624 DEVMETHOD(smbus_readb, nfsmb_readb), 625 DEVMETHOD(smbus_writew, nfsmb_writew), 626 DEVMETHOD(smbus_readw, nfsmb_readw), 627 DEVMETHOD(smbus_bwrite, nfsmb_bwrite), 628 DEVMETHOD(smbus_bread, nfsmb_bread), 629 { 0, 0 } 630 }; 631 632 static driver_t nfsmb_driver = { 633 "nfsmb", 634 nfsmb_methods, 635 sizeof(struct nfsmb_softc), 636 }; 637 638 static driver_t nfsmbsub_driver = { 639 "nfsmb", 640 nfsmbsub_methods, 641 sizeof(struct nfsmb_softc), 642 }; 643 644 DRIVER_MODULE(nfsmb, pci, nfsmb_driver, 0, 0); 645 DRIVER_MODULE(nfsmb, nfsmb, nfsmbsub_driver, 0, 0); 646 DRIVER_MODULE(smbus, nfsmb, smbus_driver, 0, 0); 647 648 MODULE_DEPEND(nfsmb, pci, 1, 1, 1); 649 MODULE_DEPEND(nfsmb, smbus, SMBUS_MINVER, SMBUS_PREFVER, SMBUS_MAXVER); 650 MODULE_VERSION(nfsmb, 1); 651