wstsc.c revision 1.3
1 /* 2 * Copyright (c) 1994 Michael L. Hitch 3 * Copyright (c) 1982, 1990 The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)supradma.c 35 * $Id: wstsc.c,v 1.3 1994/06/13 08:13:09 chopps Exp $ 36 */ 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <scsi/scsi_all.h> 42 #include <scsi/scsiconf.h> 43 #include <amiga/amiga/device.h> 44 #include <amiga/dev/scireg.h> 45 #include <amiga/dev/scivar.h> 46 #include <amiga/dev/ztwobusvar.h> 47 48 int wstscprint __P((void *auxp, char *)); 49 void wstscattach __P((struct device *, struct device *, void *)); 50 int wstscmatch __P((struct device *, struct cfdata *, void *)); 51 52 int wstsc_dma_xfer_in __P((struct sci_softc *dev, int len, 53 register u_char *buf, int phase)); 54 int wstsc_dma_xfer_out __P((struct sci_softc *dev, int len, 55 register u_char *buf, int phase)); 56 int wstsc_dma_xfer_in2 __P((struct sci_softc *dev, int len, 57 register u_short *buf, int phase)); 58 int wstsc_dma_xfer_out2 __P((struct sci_softc *dev, int len, 59 register u_short *buf, int phase)); 60 61 struct scsi_adapter wstsc_scsiswitch = { 62 sci_scsicmd, 63 sci_minphys, 64 0, /* no lun support */ 65 0, /* no lun support */ 66 sci_adinfo, 67 "wstsc", 68 }; 69 70 struct scsi_device wstsc_scsidev = { 71 NULL, /* use default error handler */ 72 NULL, /* do not have a start functio */ 73 NULL, /* have no async handler */ 74 NULL, /* Use default done routine */ 75 "wstsc", 76 0, 77 }; 78 79 #define QPRINTF 80 81 #ifdef DEBUG 82 extern int sci_debug; 83 #endif 84 85 extern int sci_data_wait; 86 87 int supradma_pseudo = 0; /* 0=none, 1=byte, 2=word */ 88 89 struct cfdriver wstsccd = { 90 NULL, "wstsc", wstscmatch, wstscattach, 91 DV_DULL, sizeof(struct sci_softc), NULL, 0 }; 92 93 /* 94 * if this a Supra WordSync board 95 */ 96 int 97 wstscmatch(pdp, cdp, auxp) 98 struct device *pdp; 99 struct cfdata *cdp; 100 void *auxp; 101 { 102 struct ztwobus_args *zap; 103 104 zap = auxp; 105 106 /* 107 * Check manufacturer and product id. 108 */ 109 if (zap->manid == 1056 && zap->prodid == 12) /* add other boards? */ 110 return(1); 111 else 112 return(0); 113 } 114 115 void 116 wstscattach(pdp, dp, auxp) 117 struct device *pdp, *dp; 118 void *auxp; 119 { 120 volatile u_char *rp; 121 struct sci_softc *sc; 122 struct ztwobus_args *zap; 123 124 printf("\n"); 125 126 zap = auxp; 127 128 sc = (struct sci_softc *)dp; 129 rp = zap->va; 130 /* 131 * set up 5380 register pointers 132 * (Needs check on which Supra board this is - for now, 133 * just do the WordSync) 134 */ 135 sc->sci_data = rp + 0; 136 sc->sci_odata = rp + 0; 137 sc->sci_icmd = rp + 2; 138 sc->sci_mode = rp + 4; 139 sc->sci_tcmd = rp + 6; 140 sc->sci_bus_csr = rp + 8; 141 sc->sci_sel_enb = rp + 8; 142 sc->sci_csr = rp + 10; 143 sc->sci_dma_send = rp + 10; 144 sc->sci_idata = rp + 12; 145 sc->sci_trecv = rp + 12; 146 sc->sci_iack = rp + 14; 147 sc->sci_irecv = rp + 14; 148 149 if (supradma_pseudo == 2) { 150 sc->dma_xfer_in = wstsc_dma_xfer_in2; 151 sc->dma_xfer_out = wstsc_dma_xfer_out2; 152 } 153 else if (supradma_pseudo == 1) { 154 sc->dma_xfer_in = wstsc_dma_xfer_in; 155 sc->dma_xfer_out = wstsc_dma_xfer_out; 156 } 157 158 scireset(sc); 159 160 sc->sc_link.adapter_softc = sc; 161 sc->sc_link.adapter_targ = 7; 162 sc->sc_link.adapter = &wstsc_scsiswitch; 163 sc->sc_link.device = &wstsc_scsidev; 164 TAILQ_INIT(&sc->sc_xslist); 165 166 /* 167 * attach all scsi units on us 168 */ 169 config_found(dp, &sc->sc_link, wstscprint); 170 } 171 172 /* 173 * print diag if pnp is NULL else just extra 174 */ 175 int 176 wstscprint(auxp, pnp) 177 void *auxp; 178 char *pnp; 179 { 180 if (pnp == NULL) 181 return(UNCONF); 182 return(QUIET); 183 } 184 185 int 186 wstsc_dma_xfer_in (dev, len, buf, phase) 187 struct sci_softc *dev; 188 int len; 189 register u_char *buf; 190 int phase; 191 { 192 int wait = sci_data_wait; 193 u_char csr; 194 u_char *obp = (u_char *) buf; 195 volatile register u_char *sci_dma = dev->sci_idata; 196 volatile register u_char *sci_csr = dev->sci_csr; 197 198 QPRINTF(("supradma_in %d, csr=%02x\n", len, *dev->sci_bus_csr)); 199 200 *dev->sci_tcmd = phase; 201 *dev->sci_icmd = 0; 202 *dev->sci_mode = SCI_MODE_DMA; 203 *dev->sci_irecv = 0; 204 205 while (len >= 128) { 206 wait = sci_data_wait; 207 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 208 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 209 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 210 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 211 || --wait < 0) { 212 #ifdef DEBUG 213 if (sci_debug | 1) 214 printf("supradma2_in fail: l%d i%x w%d\n", 215 len, *dev->sci_bus_csr, wait); 216 #endif 217 *dev->sci_mode = 0; 218 return 0; 219 } 220 } 221 222 #define R1 (*buf++ = *sci_dma) 223 R1; R1; R1; R1; R1; R1; R1; R1; 224 R1; R1; R1; R1; R1; R1; R1; R1; 225 R1; R1; R1; R1; R1; R1; R1; R1; 226 R1; R1; R1; R1; R1; R1; R1; R1; 227 R1; R1; R1; R1; R1; R1; R1; R1; 228 R1; R1; R1; R1; R1; R1; R1; R1; 229 R1; R1; R1; R1; R1; R1; R1; R1; 230 R1; R1; R1; R1; R1; R1; R1; R1; 231 R1; R1; R1; R1; R1; R1; R1; R1; 232 R1; R1; R1; R1; R1; R1; R1; R1; 233 R1; R1; R1; R1; R1; R1; R1; R1; 234 R1; R1; R1; R1; R1; R1; R1; R1; 235 R1; R1; R1; R1; R1; R1; R1; R1; 236 R1; R1; R1; R1; R1; R1; R1; R1; 237 R1; R1; R1; R1; R1; R1; R1; R1; 238 R1; R1; R1; R1; R1; R1; R1; R1; 239 len -= 128; 240 } 241 242 while (len > 0) { 243 wait = sci_data_wait; 244 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 245 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 246 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 247 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 248 || --wait < 0) { 249 #ifdef DEBUG 250 if (sci_debug | 1) 251 printf("supradma1_in fail: l%d i%x w%d\n", 252 len, *dev->sci_bus_csr, wait); 253 #endif 254 *dev->sci_mode = 0; 255 return 0; 256 } 257 } 258 259 *buf++ = *sci_dma; 260 len--; 261 } 262 263 QPRINTF(("supradma_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 264 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 265 obp[6], obp[7], obp[8], obp[9])); 266 267 *dev->sci_mode = 0; 268 return 0; 269 } 270 271 int 272 wstsc_dma_xfer_out (dev, len, buf, phase) 273 struct sci_softc *dev; 274 int len; 275 register u_char *buf; 276 int phase; 277 { 278 int wait = sci_data_wait; 279 u_char csr; 280 u_char *obp = buf; 281 volatile register u_char *sci_dma = dev->sci_data; 282 volatile register u_char *sci_csr = dev->sci_csr; 283 284 QPRINTF(("supradma_out %d, csr=%02x\n", len, *dev->sci_bus_csr)); 285 286 QPRINTF(("supradma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 287 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 288 buf[6], buf[7], buf[8], buf[9])); 289 290 *dev->sci_tcmd = phase; 291 *dev->sci_mode = SCI_MODE_DMA; 292 *dev->sci_icmd = SCI_ICMD_DATA; 293 *dev->sci_dma_send = 0; 294 while (len > 0) { 295 wait = sci_data_wait; 296 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 297 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 298 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 299 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 300 || --wait < 0) { 301 #ifdef DEBUG 302 if (sci_debug) 303 printf("supradma_out fail: l%d i%x w%d\n", 304 len, csr, wait); 305 #endif 306 *dev->sci_mode = 0; 307 return 0; 308 } 309 } 310 311 *sci_dma = *buf++; 312 len--; 313 } 314 315 wait = sci_data_wait; 316 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 317 SCI_CSR_PHASE_MATCH && --wait); 318 319 320 *dev->sci_mode = 0; 321 *dev->sci_icmd = 0; 322 return 0; 323 } 324 325 326 int 327 wstsc_dma_xfer_in2 (dev, len, buf, phase) 328 struct sci_softc *dev; 329 int len; 330 register u_short *buf; 331 int phase; 332 { 333 int wait = sci_data_wait; 334 u_char csr; 335 u_char *obp = (u_char *) buf; 336 volatile register u_short *sci_dma = (u_short *)(dev->sci_idata + 0x10); 337 volatile register u_char *sci_csr = dev->sci_csr + 0x10; 338 339 QPRINTF(("supradma_in2 %d, csr=%02x\n", len, *dev->sci_bus_csr)); 340 341 *dev->sci_tcmd = phase; 342 *dev->sci_mode = SCI_MODE_DMA; 343 *dev->sci_icmd = 0; 344 *(dev->sci_irecv + 16) = 0; 345 while (len >= 128) { 346 #if 0 347 wait = sci_data_wait; 348 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 349 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 350 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 351 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 352 || --wait < 0) { 353 #ifdef DEBUG 354 if (sci_debug | 1) 355 printf("supradma2_in2 fail: l%d i%x w%d\n", 356 len, *dev->sci_bus_csr, wait); 357 #endif 358 *dev->sci_mode &= ~SCI_MODE_DMA; 359 return 0; 360 } 361 } 362 #else 363 while (!(*sci_csr & SCI_CSR_DREQ)) 364 ; 365 #endif 366 367 #define R2 (*buf++ = *sci_dma) 368 R2; R2; R2; R2; R2; R2; R2; R2; 369 R2; R2; R2; R2; R2; R2; R2; R2; 370 R2; R2; R2; R2; R2; R2; R2; R2; 371 R2; R2; R2; R2; R2; R2; R2; R2; 372 R2; R2; R2; R2; R2; R2; R2; R2; 373 R2; R2; R2; R2; R2; R2; R2; R2; 374 R2; R2; R2; R2; R2; R2; R2; R2; 375 R2; R2; R2; R2; R2; R2; R2; R2; 376 len -= 128; 377 } 378 while (len > 0) { 379 #if 0 380 wait = sci_data_wait; 381 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 382 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 383 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 384 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 385 || --wait < 0) { 386 #ifdef DEBUG 387 if (sci_debug | 1) 388 printf("supradma1_in2 fail: l%d i%x w%d\n", 389 len, *dev->sci_bus_csr, wait); 390 #endif 391 *dev->sci_mode &= ~SCI_MODE_DMA; 392 return 0; 393 } 394 } 395 #else 396 while (!(*sci_csr * SCI_CSR_DREQ)) 397 ; 398 #endif 399 400 *buf++ = *sci_dma; 401 len -= 2; 402 } 403 404 QPRINTF(("supradma_in2 {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 405 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 406 obp[6], obp[7], obp[8], obp[9])); 407 408 *dev->sci_irecv = 0; 409 *dev->sci_mode = 0; 410 return 0; 411 } 412 413 int 414 wstsc_dma_xfer_out2 (dev, len, buf, phase) 415 struct sci_softc *dev; 416 int len; 417 register u_short *buf; 418 int phase; 419 { 420 int wait = sci_data_wait; 421 u_char csr; 422 u_char *obp = (u_char *) buf; 423 volatile register u_short *sci_dma = (ushort *)(dev->sci_data + 0x10); 424 volatile register u_char *sci_bus_csr = dev->sci_bus_csr; 425 426 QPRINTF(("supradma_out2 %d, csr=%02x\n", len, *dev->sci_bus_csr)); 427 428 QPRINTF(("supradma_out2 {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 429 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 430 obp[6], obp[7], obp[8], obp[9])); 431 432 *dev->sci_tcmd = phase; 433 *dev->sci_mode = SCI_MODE_DMA; 434 *dev->sci_icmd = SCI_ICMD_DATA; 435 *dev->sci_dma_send = 0; 436 while (len > 64) { 437 #if 0 438 wait = sci_data_wait; 439 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 440 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 441 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 442 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 443 || --wait < 0) { 444 #ifdef DEBUG 445 if (sci_debug) 446 printf("supradma_out2 fail: l%d i%x w%d\n", 447 len, csr, wait); 448 #endif 449 *dev->sci_mode = 0; 450 return 0; 451 } 452 } 453 #else 454 *dev->sci_mode = 0; 455 *dev->sci_icmd &= ~SCI_ICMD_ACK; 456 while (!(*sci_bus_csr & SCI_BUS_REQ)) 457 ; 458 *dev->sci_mode = SCI_MODE_DMA; 459 *dev->sci_dma_send = 0; 460 #endif 461 462 #define W2 (*sci_dma = *buf++) 463 W2; W2; W2; W2; W2; W2; W2; W2; 464 W2; W2; W2; W2; W2; W2; W2; W2; 465 if (*(sci_bus_csr + 0x10) & SCI_BUS_REQ) 466 ; 467 len -= 64; 468 } 469 470 while (len > 0) { 471 #if 0 472 wait = sci_data_wait; 473 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 474 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 475 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 476 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 477 || --wait < 0) { 478 #ifdef DEBUG 479 if (sci_debug) 480 printf("supradma_out2 fail: l%d i%x w%d\n", 481 len, csr, wait); 482 #endif 483 *dev->sci_mode = 0; 484 return 0; 485 } 486 } 487 #else 488 *dev->sci_mode = 0; 489 *dev->sci_icmd &= ~SCI_ICMD_ACK; 490 while (!(*sci_bus_csr & SCI_BUS_REQ)) 491 ; 492 *dev->sci_mode = SCI_MODE_DMA; 493 *dev->sci_dma_send = 0; 494 #endif 495 496 *sci_dma = *buf++; 497 if (*(sci_bus_csr + 0x10) & SCI_BUS_REQ) 498 ; 499 len -= 2; 500 } 501 502 #if 0 503 wait = sci_data_wait; 504 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 505 SCI_CSR_PHASE_MATCH && --wait); 506 #endif 507 508 509 *dev->sci_irecv = 0; 510 *dev->sci_icmd &= ~SCI_ICMD_ACK; 511 *dev->sci_mode = 0; 512 *dev->sci_icmd = 0; 513 return 0; 514 } 515 516 int 517 wstsc_intr() 518 { 519 struct sci_softc *dev; 520 int i, found; 521 u_char stat; 522 523 found = 0; 524 for (i = 0; i < wstsccd.cd_ndevs; i++) { 525 dev = wstsccd.cd_devs[i]; 526 if (dev == NULL) 527 continue; 528 if ((*(dev->sci_csr + 0x10) & SCI_CSR_INT) == 0) 529 continue; 530 ++found; 531 stat = *(dev->sci_iack + 0x10); 532 } 533 return (found); 534 } 535
Indexes created Wed Sep 24 05:09:52 GMT 2025