1 /* $NetBSD: wstsc.c,v 1.32 2005/12/11 12:16:28 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)supradma.c 32 */ 33 34 /* 35 * Copyright (c) 1994 Michael L. Hitch 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 * 57 * @(#)supradma.c 58 */ 59 60 #include <sys/cdefs.h> 61 __KERNEL_RCSID(0, "$NetBSD: wstsc.c,v 1.32 2005/12/11 12:16:28 christos Exp $"); 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/kernel.h> 66 #include <sys/device.h> 67 #include <dev/scsipi/scsi_all.h> 68 #include <dev/scsipi/scsipi_all.h> 69 #include <dev/scsipi/scsiconf.h> 70 #include <amiga/amiga/device.h> 71 #include <amiga/amiga/isr.h> 72 #include <amiga/dev/scireg.h> 73 #include <amiga/dev/scivar.h> 74 #include <amiga/dev/zbusvar.h> 75 76 void wstscattach(struct device *, struct device *, void *); 77 int wstscmatch(struct device *, struct cfdata *, void *); 78 79 int wstsc_dma_xfer_in(struct sci_softc *dev, int len, 80 register u_char *buf, int phase); 81 int wstsc_dma_xfer_out(struct sci_softc *dev, int len, 82 register u_char *buf, int phase); 83 int wstsc_dma_xfer_in2(struct sci_softc *dev, int len, 84 register u_short *buf, int phase); 85 int wstsc_dma_xfer_out2(struct sci_softc *dev, int len, 86 register u_short *buf, int phase); 87 int wstsc_intr(void *); 88 89 #ifdef DEBUG 90 extern int sci_debug; 91 #define QPRINTF(a) if (sci_debug > 1) printf a 92 #else 93 #define QPRINTF(a) 94 #endif 95 96 extern int sci_data_wait; 97 98 int supradma_pseudo = 0; /* 0=none, 1=byte, 2=word */ 99 100 CFATTACH_DECL(wstsc, sizeof(struct sci_softc), 101 wstscmatch, wstscattach, NULL, NULL); 102 103 /* 104 * if this a Supra WordSync board 105 */ 106 int 107 wstscmatch(struct device *pdp, struct cfdata *cfp, void *auxp) 108 { 109 struct zbus_args *zap; 110 111 zap = auxp; 112 113 /* 114 * Check manufacturer and product id. 115 */ 116 if (zap->manid == 1056 && ( 117 zap->prodid == 12 || /* WordSync */ 118 zap->prodid == 13)) /* ByteSync */ 119 return(1); 120 else 121 return(0); 122 } 123 124 void 125 wstscattach(struct device *pdp, struct device *dp, void *auxp) 126 { 127 volatile u_char *rp; 128 struct sci_softc *sc = (struct sci_softc *)dp; 129 struct zbus_args *zap; 130 struct scsipi_adapter *adapt = &sc->sc_adapter; 131 struct scsipi_channel *chan = &sc->sc_channel; 132 133 printf("\n"); 134 135 zap = auxp; 136 137 rp = zap->va; 138 /* 139 * set up 5380 register pointers 140 * (Needs check on which Supra board this is - for now, 141 * just do the WordSync) 142 */ 143 sc->sci_data = rp + 0; 144 sc->sci_odata = rp + 0; 145 sc->sci_icmd = rp + 2; 146 sc->sci_mode = rp + 4; 147 sc->sci_tcmd = rp + 6; 148 sc->sci_bus_csr = rp + 8; 149 sc->sci_sel_enb = rp + 8; 150 sc->sci_csr = rp + 10; 151 sc->sci_dma_send = rp + 10; 152 sc->sci_idata = rp + 12; 153 sc->sci_trecv = rp + 12; 154 sc->sci_iack = rp + 14; 155 sc->sci_irecv = rp + 14; 156 157 if (supradma_pseudo == 2) { 158 sc->dma_xfer_in = (int(*)(struct sci_softc *, int, u_char *, int))wstsc_dma_xfer_in2; 159 sc->dma_xfer_out = (int(*)(struct sci_softc *, int, u_char *, int))wstsc_dma_xfer_out2; 160 } 161 else if (supradma_pseudo == 1) { 162 sc->dma_xfer_in = wstsc_dma_xfer_in; 163 sc->dma_xfer_out = wstsc_dma_xfer_out; 164 } 165 166 sc->sc_isr.isr_intr = wstsc_intr; 167 sc->sc_isr.isr_arg = sc; 168 sc->sc_isr.isr_ipl = 2; 169 add_isr(&sc->sc_isr); 170 171 scireset(sc); 172 173 /* 174 * Fill in the scsipi_adapter. 175 */ 176 memset(adapt, 0, sizeof(*adapt)); 177 adapt->adapt_dev = &sc->sc_dev; 178 adapt->adapt_nchannels = 1; 179 adapt->adapt_openings = 7; 180 adapt->adapt_max_periph = 1; 181 adapt->adapt_request = sci_scsipi_request; 182 adapt->adapt_minphys = sci_minphys; 183 184 /* 185 * Fill in the scsipi_channel. 186 */ 187 memset(chan, 0, sizeof(*chan)); 188 chan->chan_adapter = adapt; 189 chan->chan_bustype = &scsi_bustype; 190 chan->chan_channel = 0; 191 chan->chan_ntargets = 8; 192 chan->chan_nluns = 8; 193 chan->chan_id = 7; 194 195 /* 196 * attach all scsi units on us 197 */ 198 config_found(dp, chan, scsiprint); 199 } 200 201 int 202 wstsc_dma_xfer_in(struct sci_softc *dev, int len, register u_char *buf, 203 int phase) 204 { 205 int wait = sci_data_wait; 206 volatile register u_char *sci_dma = dev->sci_idata; 207 volatile register u_char *sci_csr = dev->sci_csr; 208 #ifdef DEBUG 209 u_char *obp = (u_char *) buf; 210 #endif 211 212 QPRINTF(("supradma_in %d, csr=%02x\n", len, *dev->sci_bus_csr)); 213 214 *dev->sci_tcmd = phase; 215 *dev->sci_icmd = 0; 216 *dev->sci_mode = SCI_MODE_DMA; 217 *dev->sci_irecv = 0; 218 219 while (len >= 128) { 220 wait = sci_data_wait; 221 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 222 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 223 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 224 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 225 || --wait < 0) { 226 #ifdef DEBUG 227 if (sci_debug | 1) 228 printf("supradma2_in fail: l%d i%x w%d\n", 229 len, *dev->sci_bus_csr, wait); 230 #endif 231 *dev->sci_mode = 0; 232 return 0; 233 } 234 } 235 236 #define R1 (*buf++ = *sci_dma) 237 R1; R1; R1; R1; R1; R1; R1; R1; 238 R1; R1; R1; R1; R1; R1; R1; R1; 239 R1; R1; R1; R1; R1; R1; R1; R1; 240 R1; R1; R1; R1; R1; R1; R1; R1; 241 R1; R1; R1; R1; R1; R1; R1; R1; 242 R1; R1; R1; R1; R1; R1; R1; R1; 243 R1; R1; R1; R1; R1; R1; R1; R1; 244 R1; R1; R1; R1; R1; R1; R1; R1; 245 R1; R1; R1; R1; R1; R1; R1; R1; 246 R1; R1; R1; R1; R1; R1; R1; R1; 247 R1; R1; R1; R1; R1; R1; R1; R1; 248 R1; R1; R1; R1; R1; R1; R1; R1; 249 R1; R1; R1; R1; R1; R1; R1; R1; 250 R1; R1; R1; R1; R1; R1; R1; R1; 251 R1; R1; R1; R1; R1; R1; R1; R1; 252 R1; R1; R1; R1; R1; R1; R1; R1; 253 len -= 128; 254 } 255 256 while (len > 0) { 257 wait = sci_data_wait; 258 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 259 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 260 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 261 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 262 || --wait < 0) { 263 #ifdef DEBUG 264 if (sci_debug | 1) 265 printf("supradma1_in fail: l%d i%x w%d\n", 266 len, *dev->sci_bus_csr, wait); 267 #endif 268 *dev->sci_mode = 0; 269 return 0; 270 } 271 } 272 273 *buf++ = *sci_dma; 274 len--; 275 } 276 277 QPRINTF(("supradma_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 278 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 279 obp[6], obp[7], obp[8], obp[9])); 280 281 *dev->sci_mode = 0; 282 return 0; 283 } 284 285 int 286 wstsc_dma_xfer_out(struct sci_softc *dev, int len, register u_char *buf, 287 int phase) 288 { 289 int wait = sci_data_wait; 290 volatile register u_char *sci_dma = dev->sci_data; 291 volatile register u_char *sci_csr = dev->sci_csr; 292 293 QPRINTF(("supradma_out %d, csr=%02x\n", len, *dev->sci_bus_csr)); 294 295 QPRINTF(("supradma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 296 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 297 buf[6], buf[7], buf[8], buf[9])); 298 299 *dev->sci_tcmd = phase; 300 *dev->sci_mode = SCI_MODE_DMA; 301 *dev->sci_icmd = SCI_ICMD_DATA; 302 *dev->sci_dma_send = 0; 303 while (len > 0) { 304 wait = sci_data_wait; 305 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 306 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 307 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 308 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 309 || --wait < 0) { 310 #ifdef DEBUG 311 if (sci_debug) 312 printf("supradma_out fail: l%d i%x w%d\n", 313 len, *dev->sci_bus_csr, wait); 314 #endif 315 *dev->sci_mode = 0; 316 return 0; 317 } 318 } 319 320 *sci_dma = *buf++; 321 len--; 322 } 323 324 wait = sci_data_wait; 325 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 326 SCI_CSR_PHASE_MATCH && --wait); 327 328 329 *dev->sci_mode = 0; 330 *dev->sci_icmd = 0; 331 return 0; 332 } 333 334 335 int 336 wstsc_dma_xfer_in2(struct sci_softc *dev, int len, register u_short *buf, 337 int phase) 338 { 339 volatile register u_short *sci_dma = 340 (volatile u_short *)(dev->sci_idata + 0x10); 341 volatile register u_char *sci_csr = dev->sci_csr + 0x10; 342 #ifdef DEBUG 343 u_char *obp = (u_char *) buf; 344 #endif 345 #if 0 346 int wait = sci_data_wait; 347 #endif 348 349 QPRINTF(("supradma_in2 %d, csr=%02x\n", len, *dev->sci_bus_csr)); 350 351 *dev->sci_tcmd = phase; 352 *dev->sci_mode = SCI_MODE_DMA; 353 *dev->sci_icmd = 0; 354 *(dev->sci_irecv + 16) = 0; 355 while (len >= 128) { 356 #if 0 357 wait = sci_data_wait; 358 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 359 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 360 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 361 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 362 || --wait < 0) { 363 #ifdef DEBUG 364 if (sci_debug | 1) 365 printf("supradma2_in2 fail: l%d i%x w%d\n", 366 len, *dev->sci_bus_csr, wait); 367 #endif 368 *dev->sci_mode &= ~SCI_MODE_DMA; 369 return 0; 370 } 371 } 372 #else 373 while (!(*sci_csr & SCI_CSR_DREQ)) 374 ; 375 #endif 376 377 #define R2 (*buf++ = *sci_dma) 378 R2; R2; R2; R2; R2; R2; R2; R2; 379 R2; R2; R2; R2; R2; R2; R2; R2; 380 R2; R2; R2; R2; R2; R2; R2; R2; 381 R2; R2; R2; R2; R2; R2; R2; R2; 382 R2; R2; R2; R2; R2; R2; R2; R2; 383 R2; R2; R2; R2; R2; R2; R2; R2; 384 R2; R2; R2; R2; R2; R2; R2; R2; 385 R2; R2; R2; R2; R2; R2; R2; R2; 386 len -= 128; 387 } 388 while (len > 0) { 389 #if 0 390 wait = sci_data_wait; 391 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 392 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 393 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 394 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 395 || --wait < 0) { 396 #ifdef DEBUG 397 if (sci_debug | 1) 398 printf("supradma1_in2 fail: l%d i%x w%d\n", 399 len, *dev->sci_bus_csr, wait); 400 #endif 401 *dev->sci_mode &= ~SCI_MODE_DMA; 402 return 0; 403 } 404 } 405 #else 406 while (!(*sci_csr * SCI_CSR_DREQ)) 407 ; 408 #endif 409 410 *buf++ = *sci_dma; 411 len -= 2; 412 } 413 414 QPRINTF(("supradma_in2 {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 415 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 416 obp[6], obp[7], obp[8], obp[9])); 417 418 *dev->sci_irecv = 0; 419 *dev->sci_mode = 0; 420 return 0; 421 } 422 423 int 424 wstsc_dma_xfer_out2(struct sci_softc *dev, int len, register u_short *buf, 425 int phase) 426 { 427 volatile register u_short *sci_dma = 428 (volatile ushort *)(dev->sci_data + 0x10); 429 volatile register u_char *sci_bus_csr = dev->sci_bus_csr; 430 #ifdef DEBUG 431 u_char *obp = (u_char *) buf; 432 #endif 433 #if 0 434 int wait = sci_data_wait; 435 #endif 436 437 QPRINTF(("supradma_out2 %d, csr=%02x\n", len, *dev->sci_bus_csr)); 438 439 QPRINTF(("supradma_out2 {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 440 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 441 obp[6], obp[7], obp[8], obp[9])); 442 443 *dev->sci_tcmd = phase; 444 *dev->sci_mode = SCI_MODE_DMA; 445 *dev->sci_icmd = SCI_ICMD_DATA; 446 *dev->sci_dma_send = 0; 447 while (len > 64) { 448 #if 0 449 wait = sci_data_wait; 450 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 451 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 452 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 453 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 454 || --wait < 0) { 455 #ifdef DEBUG 456 if (sci_debug) 457 printf("supradma_out2 fail: l%d i%x w%d\n", 458 len, csr, wait); 459 #endif 460 *dev->sci_mode = 0; 461 return 0; 462 } 463 } 464 #else 465 *dev->sci_mode = 0; 466 *dev->sci_icmd &= ~SCI_ICMD_ACK; 467 while (!(*sci_bus_csr & SCI_BUS_REQ)) 468 ; 469 *dev->sci_mode = SCI_MODE_DMA; 470 *dev->sci_dma_send = 0; 471 #endif 472 473 #define W2 (*sci_dma = *buf++) 474 W2; W2; W2; W2; W2; W2; W2; W2; 475 W2; W2; W2; W2; W2; W2; W2; W2; 476 if (*(sci_bus_csr + 0x10) & SCI_BUS_REQ) 477 ; 478 len -= 64; 479 } 480 481 while (len > 0) { 482 #if 0 483 wait = sci_data_wait; 484 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 485 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 486 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 487 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 488 || --wait < 0) { 489 #ifdef DEBUG 490 if (sci_debug) 491 printf("supradma_out2 fail: l%d i%x w%d\n", 492 len, csr, wait); 493 #endif 494 *dev->sci_mode = 0; 495 return 0; 496 } 497 } 498 #else 499 *dev->sci_mode = 0; 500 *dev->sci_icmd &= ~SCI_ICMD_ACK; 501 while (!(*sci_bus_csr & SCI_BUS_REQ)) 502 ; 503 *dev->sci_mode = SCI_MODE_DMA; 504 *dev->sci_dma_send = 0; 505 #endif 506 507 *sci_dma = *buf++; 508 if (*(sci_bus_csr + 0x10) & SCI_BUS_REQ) 509 ; 510 len -= 2; 511 } 512 513 #if 0 514 wait = sci_data_wait; 515 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 516 SCI_CSR_PHASE_MATCH && --wait); 517 #endif 518 519 520 *dev->sci_irecv = 0; 521 *dev->sci_icmd &= ~SCI_ICMD_ACK; 522 *dev->sci_mode = 0; 523 *dev->sci_icmd = 0; 524 return 0; 525 } 526 527 int 528 wstsc_intr(void *arg) 529 { 530 struct sci_softc *dev = arg; 531 u_char stat; 532 533 if ((*(dev->sci_csr + 0x10) & SCI_CSR_INT) == 0) 534 return (0); 535 stat = *(dev->sci_iack + 0x10); 536 return (1); 537 } 538