mlhsc.c revision 1.2
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 * @(#)dma.c 35 * $Id: mlhsc.c,v 1.2 1994/05/29 04:50:16 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 mlhscprint __P((void *auxp, char *)); 49 void mlhscattach __P((struct device *, struct device *, void *)); 50 int mlhscmatch __P((struct device *, struct cfdata *, void *)); 51 52 int mlhsc_dma_xfer_in __P((struct sci_softc *dev, int len, 53 register u_char *buf, int phase)); 54 int mlhsc_dma_xfer_out __P((struct sci_softc *dev, int len, 55 register u_char *buf, int phase)); 56 57 struct scsi_adapter mlhsc_scsiswitch = { 58 sci_scsicmd, 59 sci_minphys, 60 0, /* no lun support */ 61 0, /* no lun support */ 62 sci_adinfo, 63 "mlhsc", 64 }; 65 66 struct scsi_device mlhsc_scsidev = { 67 NULL, /* use default error handler */ 68 NULL, /* do not have a start functio */ 69 NULL, /* have no async handler */ 70 NULL, /* Use default done routine */ 71 "mlhsc", 72 0, 73 }; 74 75 #define QPRINTF 76 77 #ifdef DEBUG 78 extern int sci_debug; 79 #endif 80 81 extern int sci_data_wait; 82 83 struct cfdriver mlhsccd = { 84 NULL, "mlhsc", mlhscmatch, mlhscattach, 85 DV_DULL, sizeof(struct sci_softc), NULL, 0 }; 86 87 /* 88 * if we are my Hacker's SCSI board we are here. 89 */ 90 int 91 mlhscmatch(pdp, cdp, auxp) 92 struct device *pdp; 93 struct cfdata *cdp; 94 void *auxp; 95 { 96 struct ztwobus_args *zap; 97 98 zap = auxp; 99 100 /* 101 * Check manufacturer and product id. 102 */ 103 if (zap->manid == 2011 && zap->prodid == 1) 104 return(1); 105 else 106 return(0); 107 } 108 109 void 110 mlhscattach(pdp, dp, auxp) 111 struct device *pdp, *dp; 112 void *auxp; 113 { 114 volatile u_char *rp; 115 struct sci_softc *sc; 116 struct ztwobus_args *zap; 117 118 zap = auxp; 119 120 sc = (struct sci_softc *)dp; 121 rp = zap->va; 122 sc->sci_data = rp + 1; 123 sc->sci_odata = rp + 1; 124 sc->sci_icmd = rp + 3; 125 sc->sci_mode = rp + 5; 126 sc->sci_tcmd = rp + 7; 127 sc->sci_bus_csr = rp + 9; 128 sc->sci_sel_enb = rp + 9; 129 sc->sci_csr = rp + 11; 130 sc->sci_dma_send = rp + 11; 131 sc->sci_idata = rp + 13; 132 sc->sci_trecv = rp + 13; 133 sc->sci_iack = rp + 15; 134 sc->sci_irecv = rp + 15; 135 136 sc->dma_xfer_in = mlhsc_dma_xfer_in; 137 sc->dma_xfer_out = mlhsc_dma_xfer_out; 138 139 scireset(sc); 140 141 sc->sc_link.adapter_softc = sc; 142 sc->sc_link.adapter_targ = 7; 143 sc->sc_link.adapter = &mlhsc_scsiswitch; 144 sc->sc_link.device = &mlhsc_scsidev; 145 TAILQ_INIT(&sc->sc_xslist); 146 147 /* 148 * attach all scsi units on us 149 */ 150 config_found(dp, &sc->sc_link, mlhscprint); 151 } 152 153 /* 154 * print diag if pnp is NULL else just extra 155 */ 156 int 157 mlhscprint(auxp, pnp) 158 void *auxp; 159 char *pnp; 160 { 161 if (pnp == NULL) 162 return(UNCONF); 163 return(QUIET); 164 } 165 166 167 int 168 mlhsc_dma_xfer_in (dev, len, buf, phase) 169 struct sci_softc *dev; 170 int len; 171 register u_char *buf; 172 int phase; 173 { 174 int wait = sci_data_wait; 175 u_char csr; 176 u_char *obp = buf; 177 volatile register u_char *sci_dma = dev->sci_data + 16; 178 volatile register u_char *sci_csr = dev->sci_csr; 179 volatile register u_char *sci_icmd = dev->sci_icmd; 180 181 csr = *dev->sci_bus_csr; 182 183 QPRINTF(("mlhdma_in %d, csr=%02x\n", len, csr)); 184 185 *dev->sci_tcmd = phase; 186 *dev->sci_mode |= SCI_MODE_DMA; 187 *dev->sci_icmd = 0; 188 *dev->sci_irecv = 0; 189 while (len > 128) { 190 wait = sci_data_wait; 191 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 192 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 193 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 194 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 195 || --wait < 0) { 196 #ifdef DEBUG 197 if (sci_debug) 198 printf("mlhdma_in fail: l%d i%x w%d\n", 199 len, csr, wait); 200 #endif 201 *dev->sci_mode &= ~SCI_MODE_DMA; 202 return 0; 203 } 204 } 205 206 *buf++ = *sci_dma; *buf++ = *sci_dma; 207 *buf++ = *sci_dma; *buf++ = *sci_dma; 208 *buf++ = *sci_dma; *buf++ = *sci_dma; 209 *buf++ = *sci_dma; *buf++ = *sci_dma; 210 *buf++ = *sci_dma; *buf++ = *sci_dma; 211 *buf++ = *sci_dma; *buf++ = *sci_dma; 212 *buf++ = *sci_dma; *buf++ = *sci_dma; 213 *buf++ = *sci_dma; *buf++ = *sci_dma; 214 *buf++ = *sci_dma; *buf++ = *sci_dma; 215 *buf++ = *sci_dma; *buf++ = *sci_dma; 216 *buf++ = *sci_dma; *buf++ = *sci_dma; 217 *buf++ = *sci_dma; *buf++ = *sci_dma; 218 *buf++ = *sci_dma; *buf++ = *sci_dma; 219 *buf++ = *sci_dma; *buf++ = *sci_dma; 220 *buf++ = *sci_dma; *buf++ = *sci_dma; 221 *buf++ = *sci_dma; *buf++ = *sci_dma; 222 *buf++ = *sci_dma; *buf++ = *sci_dma; 223 *buf++ = *sci_dma; *buf++ = *sci_dma; 224 *buf++ = *sci_dma; *buf++ = *sci_dma; 225 *buf++ = *sci_dma; *buf++ = *sci_dma; 226 *buf++ = *sci_dma; *buf++ = *sci_dma; 227 *buf++ = *sci_dma; *buf++ = *sci_dma; 228 *buf++ = *sci_dma; *buf++ = *sci_dma; 229 *buf++ = *sci_dma; *buf++ = *sci_dma; 230 *buf++ = *sci_dma; *buf++ = *sci_dma; 231 *buf++ = *sci_dma; *buf++ = *sci_dma; 232 *buf++ = *sci_dma; *buf++ = *sci_dma; 233 *buf++ = *sci_dma; *buf++ = *sci_dma; 234 *buf++ = *sci_dma; *buf++ = *sci_dma; 235 *buf++ = *sci_dma; *buf++ = *sci_dma; 236 *buf++ = *sci_dma; *buf++ = *sci_dma; 237 *buf++ = *sci_dma; *buf++ = *sci_dma; 238 *buf++ = *sci_dma; *buf++ = *sci_dma; 239 *buf++ = *sci_dma; *buf++ = *sci_dma; 240 *buf++ = *sci_dma; *buf++ = *sci_dma; 241 *buf++ = *sci_dma; *buf++ = *sci_dma; 242 *buf++ = *sci_dma; *buf++ = *sci_dma; 243 *buf++ = *sci_dma; *buf++ = *sci_dma; 244 *buf++ = *sci_dma; *buf++ = *sci_dma; 245 *buf++ = *sci_dma; *buf++ = *sci_dma; 246 *buf++ = *sci_dma; *buf++ = *sci_dma; 247 *buf++ = *sci_dma; *buf++ = *sci_dma; 248 *buf++ = *sci_dma; *buf++ = *sci_dma; 249 *buf++ = *sci_dma; *buf++ = *sci_dma; 250 *buf++ = *sci_dma; *buf++ = *sci_dma; 251 *buf++ = *sci_dma; *buf++ = *sci_dma; 252 *buf++ = *sci_dma; *buf++ = *sci_dma; 253 *buf++ = *sci_dma; *buf++ = *sci_dma; 254 *buf++ = *sci_dma; *buf++ = *sci_dma; 255 *buf++ = *sci_dma; *buf++ = *sci_dma; 256 *buf++ = *sci_dma; *buf++ = *sci_dma; 257 *buf++ = *sci_dma; *buf++ = *sci_dma; 258 *buf++ = *sci_dma; *buf++ = *sci_dma; 259 *buf++ = *sci_dma; *buf++ = *sci_dma; 260 *buf++ = *sci_dma; *buf++ = *sci_dma; 261 *buf++ = *sci_dma; *buf++ = *sci_dma; 262 *buf++ = *sci_dma; *buf++ = *sci_dma; 263 *buf++ = *sci_dma; *buf++ = *sci_dma; 264 *buf++ = *sci_dma; *buf++ = *sci_dma; 265 *buf++ = *sci_dma; *buf++ = *sci_dma; 266 *buf++ = *sci_dma; *buf++ = *sci_dma; 267 *buf++ = *sci_dma; *buf++ = *sci_dma; 268 *buf++ = *sci_dma; *buf++ = *sci_dma; 269 *buf++ = *sci_dma; *buf++ = *sci_dma; 270 len -= 128; 271 } 272 while (len > 0) { 273 wait = sci_data_wait; 274 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 275 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 276 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 277 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 278 || --wait < 0) { 279 #ifdef DEBUG 280 if (sci_debug) 281 printf("mlhdma_in fail: l%d i%x w%d\n", 282 len, csr, wait); 283 #endif 284 *dev->sci_mode &= ~SCI_MODE_DMA; 285 return 0; 286 } 287 } 288 289 *buf++ = *sci_dma; 290 len--; 291 } 292 293 QPRINTF(("mlhdma_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 294 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 295 obp[6], obp[7], obp[8], obp[9])); 296 297 *dev->sci_mode &= ~SCI_MODE_DMA; 298 return 0; 299 } 300 301 int 302 mlhsc_dma_xfer_out (dev, len, buf, phase) 303 struct sci_softc *dev; 304 int len; 305 register u_char *buf; 306 int phase; 307 { 308 int wait = sci_data_wait; 309 u_char csr; 310 u_char *obp = buf; 311 volatile register u_char *sci_dma = dev->sci_data + 16; 312 volatile register u_char *sci_csr = dev->sci_csr; 313 volatile register u_char *sci_icmd = dev->sci_icmd; 314 315 csr = *dev->sci_bus_csr; 316 317 QPRINTF(("mlhdma_xfer %d, csr=%02x\n", len, csr)); 318 319 QPRINTF(("mlhgdma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 320 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 321 buf[6], buf[7], buf[8], buf[9])); 322 323 *dev->sci_tcmd = phase; 324 *dev->sci_mode |= SCI_MODE_DMA; 325 *dev->sci_icmd = SCI_ICMD_DATA; 326 *dev->sci_dma_send = 0; 327 while (len > 64) { 328 wait = sci_data_wait; 329 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 330 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 331 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 332 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 333 || --wait < 0) { 334 #ifdef DEBUG 335 if (sci_debug) 336 printf("mlhdma_out fail: l%d i%x w%d\n", 337 len, csr, wait); 338 #endif 339 *dev->sci_mode &= ~SCI_MODE_DMA; 340 return 0; 341 } 342 } 343 344 *sci_dma = *buf++; *sci_dma = *buf++; 345 *sci_dma = *buf++; *sci_dma = *buf++; 346 *sci_dma = *buf++; *sci_dma = *buf++; 347 *sci_dma = *buf++; *sci_dma = *buf++; 348 *sci_dma = *buf++; *sci_dma = *buf++; 349 *sci_dma = *buf++; *sci_dma = *buf++; 350 *sci_dma = *buf++; *sci_dma = *buf++; 351 *sci_dma = *buf++; *sci_dma = *buf++; 352 *sci_dma = *buf++; *sci_dma = *buf++; 353 *sci_dma = *buf++; *sci_dma = *buf++; 354 *sci_dma = *buf++; *sci_dma = *buf++; 355 *sci_dma = *buf++; *sci_dma = *buf++; 356 *sci_dma = *buf++; *sci_dma = *buf++; 357 *sci_dma = *buf++; *sci_dma = *buf++; 358 *sci_dma = *buf++; *sci_dma = *buf++; 359 *sci_dma = *buf++; *sci_dma = *buf++; 360 *sci_dma = *buf++; *sci_dma = *buf++; 361 *sci_dma = *buf++; *sci_dma = *buf++; 362 *sci_dma = *buf++; *sci_dma = *buf++; 363 *sci_dma = *buf++; *sci_dma = *buf++; 364 *sci_dma = *buf++; *sci_dma = *buf++; 365 *sci_dma = *buf++; *sci_dma = *buf++; 366 *sci_dma = *buf++; *sci_dma = *buf++; 367 *sci_dma = *buf++; *sci_dma = *buf++; 368 *sci_dma = *buf++; *sci_dma = *buf++; 369 *sci_dma = *buf++; *sci_dma = *buf++; 370 *sci_dma = *buf++; *sci_dma = *buf++; 371 *sci_dma = *buf++; *sci_dma = *buf++; 372 *sci_dma = *buf++; *sci_dma = *buf++; 373 *sci_dma = *buf++; *sci_dma = *buf++; 374 *sci_dma = *buf++; *sci_dma = *buf++; 375 *sci_dma = *buf++; *sci_dma = *buf++; 376 len -= 64; 377 } 378 while (len > 0) { 379 wait = sci_data_wait; 380 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 381 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 382 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 383 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 384 || --wait < 0) { 385 #ifdef DEBUG 386 if (sci_debug) 387 printf("mlhdma_out fail: l%d i%x w%d\n", 388 len, csr, wait); 389 #endif 390 *dev->sci_mode &= ~SCI_MODE_DMA; 391 return 0; 392 } 393 } 394 395 *sci_dma = *buf++; 396 len--; 397 } 398 399 wait = sci_data_wait; 400 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 401 SCI_CSR_PHASE_MATCH && --wait); 402 403 *dev->sci_mode &= ~SCI_MODE_DMA; 404 return 0; 405 } 406
Indexes created Sun Sep 21 20:09:37 GMT 2025