ivsc.c revision 1.15
1 /* $NetBSD: ivsc.c,v 1.15 1996/04/21 21:12:04 veego Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Michael L. Hitch 5 * Copyright (c) 1982, 1990 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)ivsdma.c 37 */ 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <scsi/scsi_all.h> 43 #include <scsi/scsiconf.h> 44 #include <amiga/amiga/custom.h> 45 #include <amiga/amiga/device.h> 46 #include <amiga/amiga/isr.h> 47 #include <amiga/dev/scireg.h> 48 #include <amiga/dev/scivar.h> 49 #include <amiga/dev/zbusvar.h> 50 51 int ivscprint __P((void *auxp, char *)); 52 void ivscattach __P((struct device *, struct device *, void *)); 53 int ivscmatch __P((struct device *, void *, void *)); 54 55 int ivsc_intr __P((void *)); 56 int ivsc_dma_xfer_in __P((struct sci_softc *dev, int len, 57 register u_char *buf, int phase)); 58 int ivsc_dma_xfer_out __P((struct sci_softc *dev, int len, 59 register u_char *buf, int phase)); 60 61 struct scsi_adapter ivsc_scsiswitch = { 62 sci_scsicmd, 63 sci_minphys, 64 0, /* no lun support */ 65 0, /* no lun support */ 66 }; 67 68 struct scsi_device ivsc_scsidev = { 69 NULL, /* use default error handler */ 70 NULL, /* do not have a start functio */ 71 NULL, /* have no async handler */ 72 NULL, /* Use default done routine */ 73 }; 74 75 76 #ifdef DEBUG 77 extern int sci_debug; 78 #define QPRINTF(a) if (sci_debug > 1) printf a 79 #else 80 #define QPRINTF(a) 81 #endif 82 83 extern int sci_data_wait; 84 85 int ivsdma_pseudo = 1; /* 0=off, 1=on */ 86 87 struct cfattach ivsc_ca = { 88 sizeof(struct sci_softc), ivscmatch, ivscattach 89 }; 90 91 struct cfdriver ivsc_cd = { 92 NULL, "ivsc", DV_DULL, NULL, 0 93 }; 94 95 /* 96 * if this is an IVS board 97 */ 98 int 99 ivscmatch(pdp, match, auxp) 100 struct device *pdp; 101 void *match, *auxp; 102 { 103 struct zbus_args *zap; 104 105 zap = auxp; 106 107 /* 108 * Check manufacturer and product id. 109 */ 110 if (zap->manid != 2112 || /* If manufacturer is IVS */ 111 (zap->prodid != 48 && /* product = Trumpcard 500 */ 112 zap->prodid != 52 && /* product = Trumpcard */ 113 zap->prodid != 243)) /* product = Vector SCSI */ 114 return(0); /* didn't match */ 115 return(1); 116 } 117 118 void 119 ivscattach(pdp, dp, auxp) 120 struct device *pdp, *dp; 121 void *auxp; 122 { 123 volatile u_char *rp; 124 struct sci_softc *sc; 125 struct zbus_args *zap; 126 127 printf("\n"); 128 129 zap = auxp; 130 131 sc = (struct sci_softc *)dp; 132 rp = zap->va + 0x40; 133 sc->sci_data = rp; 134 sc->sci_odata = rp; 135 sc->sci_icmd = rp + 2; 136 sc->sci_mode = rp + 4; 137 sc->sci_tcmd = rp + 6; 138 sc->sci_bus_csr = rp + 8; 139 sc->sci_sel_enb = rp + 8; 140 sc->sci_csr = rp + 10; 141 sc->sci_dma_send = rp + 10; 142 sc->sci_idata = rp + 12; 143 sc->sci_trecv = rp + 12; 144 sc->sci_iack = rp + 14; 145 sc->sci_irecv = rp + 14; 146 147 if (ivsdma_pseudo == 1) { 148 sc->dma_xfer_in = ivsc_dma_xfer_in; 149 sc->dma_xfer_out = ivsc_dma_xfer_out; 150 } 151 152 sc->sc_isr.isr_intr = ivsc_intr; 153 sc->sc_isr.isr_arg = sc; 154 sc->sc_isr.isr_ipl = 2; 155 add_isr(&sc->sc_isr); 156 157 scireset(sc); 158 159 sc->sc_link.adapter_softc = sc; 160 sc->sc_link.adapter_target = 7; 161 sc->sc_link.adapter = &ivsc_scsiswitch; 162 sc->sc_link.device = &ivsc_scsidev; 163 sc->sc_link.openings = 1; 164 TAILQ_INIT(&sc->sc_xslist); 165 166 /* 167 * attach all scsi units on us 168 */ 169 config_found(dp, &sc->sc_link, ivscprint); 170 } 171 172 /* 173 * print diag if pnp is NULL else just extra 174 */ 175 int 176 ivscprint(auxp, pnp) 177 void *auxp; 178 char *pnp; 179 { 180 if (pnp == NULL) 181 return(UNCONF); 182 return(QUIET); 183 } 184 185 int 186 ivsc_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 volatile register u_char *sci_dma = dev->sci_idata + 0x20; 194 volatile register u_char *sci_csr = dev->sci_csr; 195 #ifdef DEBUG 196 u_char *obp = buf; 197 #endif 198 199 QPRINTF(("ivsc_dma_in %d, csr=%02x\n", len, *dev->sci_bus_csr)); 200 201 *dev->sci_tcmd = phase; 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) 214 printf("ivsc_dma_in2 fail: l%d i%x w%d\n", 215 len, *dev->sci_bus_csr, wait); 216 #endif 217 *dev->sci_mode &= ~SCI_MODE_DMA; 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) 251 printf("ivsc_dma_in1 fail: l%d i%x w%d\n", 252 len, *dev->sci_bus_csr, wait); 253 #endif 254 *dev->sci_mode &= ~SCI_MODE_DMA; 255 return 0; 256 } 257 } 258 259 *buf++ = *sci_dma; 260 len--; 261 } 262 263 QPRINTF(("ivsc_dma_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 &= ~SCI_MODE_DMA; 268 return 0; 269 } 270 271 int 272 ivsc_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 volatile register u_char *sci_dma = dev->sci_data + 0x20; 280 volatile register u_char *sci_csr = dev->sci_csr; 281 282 QPRINTF(("ivsc_dma_out %d, csr=%02x\n", len, *dev->sci_bus_csr)); 283 284 QPRINTF(("ivsc_dma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 285 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 286 buf[6], buf[7], buf[8], buf[9])); 287 288 *dev->sci_tcmd = phase; 289 *dev->sci_mode |= SCI_MODE_DMA; 290 *dev->sci_icmd |= SCI_ICMD_DATA; 291 *dev->sci_dma_send = 0; 292 while (len > 0) { 293 wait = sci_data_wait; 294 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 295 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 296 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 297 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 298 || --wait < 0) { 299 #ifdef DEBUG 300 if (sci_debug) 301 printf("ivsc_dma_out fail: l%d i%x w%d\n", 302 len, *dev->sci_bus_csr, wait); 303 #endif 304 *dev->sci_mode &= ~SCI_MODE_DMA; 305 return 0; 306 } 307 } 308 309 *sci_dma = *buf++; 310 len--; 311 } 312 313 wait = sci_data_wait; 314 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 315 SCI_CSR_PHASE_MATCH && --wait); 316 317 318 *dev->sci_mode &= ~SCI_MODE_DMA; 319 return 0; 320 } 321 322 int 323 ivsc_intr(arg) 324 void *arg; 325 { 326 struct sci_softc *dev = arg; 327 u_char stat; 328 329 if ((*dev->sci_csr & SCI_CSR_INT) == 0) 330 return(0); 331 stat = *dev->sci_iack; 332 /* XXXX is: something is missing here, at least a: */ 333 return(1); 334 } 335
Indexes created Tue Sep 23 23:09:58 GMT 2025