ivsc.c revision 1.14
1 /* $NetBSD: ivsc.c,v 1.14 1996/03/28 19:23:34 is 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((struct sci_softc *)); 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 #define QPRINTF 76 77 #ifdef DEBUG 78 extern int sci_debug; 79 #endif 80 81 extern int sci_data_wait; 82 83 int ivsdma_pseudo = 1; /* 0=off, 1=on */ 84 85 struct cfattach ivsc_ca = { 86 sizeof(struct sci_softc), ivscmatch, ivscattach 87 }; 88 89 struct cfdriver ivsc_cd = { 90 NULL, "ivsc", DV_DULL, NULL, 0 91 }; 92 93 /* 94 * if this is an IVS board 95 */ 96 int 97 ivscmatch(pdp, match, auxp) 98 struct device *pdp; 99 void *match, *auxp; 100 { 101 struct zbus_args *zap; 102 103 zap = auxp; 104 105 /* 106 * Check manufacturer and product id. 107 */ 108 if (zap->manid != 2112 || /* If manufacturer is IVS */ 109 (zap->prodid != 48 && /* product = Trumpcard 500 */ 110 zap->prodid != 52 && /* product = Trumpcard */ 111 zap->prodid != 243)) /* product = Vector SCSI */ 112 return(0); /* didn't match */ 113 return(1); 114 } 115 116 void 117 ivscattach(pdp, dp, auxp) 118 struct device *pdp, *dp; 119 void *auxp; 120 { 121 volatile u_char *rp; 122 struct sci_softc *sc; 123 struct zbus_args *zap; 124 125 printf("\n"); 126 127 zap = auxp; 128 129 sc = (struct sci_softc *)dp; 130 rp = zap->va + 0x40; 131 sc->sci_data = rp; 132 sc->sci_odata = rp; 133 sc->sci_icmd = rp + 2; 134 sc->sci_mode = rp + 4; 135 sc->sci_tcmd = rp + 6; 136 sc->sci_bus_csr = rp + 8; 137 sc->sci_sel_enb = rp + 8; 138 sc->sci_csr = rp + 10; 139 sc->sci_dma_send = rp + 10; 140 sc->sci_idata = rp + 12; 141 sc->sci_trecv = rp + 12; 142 sc->sci_iack = rp + 14; 143 sc->sci_irecv = rp + 14; 144 145 if (ivsdma_pseudo == 1) { 146 sc->dma_xfer_in = ivsc_dma_xfer_in; 147 sc->dma_xfer_out = ivsc_dma_xfer_out; 148 } 149 150 sc->sc_isr.isr_intr = ivsc_intr; 151 sc->sc_isr.isr_arg = sc; 152 sc->sc_isr.isr_ipl = 2; 153 add_isr(&sc->sc_isr); 154 155 scireset(sc); 156 157 sc->sc_link.adapter_softc = sc; 158 sc->sc_link.adapter_target = 7; 159 sc->sc_link.adapter = &ivsc_scsiswitch; 160 sc->sc_link.device = &ivsc_scsidev; 161 sc->sc_link.openings = 1; 162 TAILQ_INIT(&sc->sc_xslist); 163 164 /* 165 * attach all scsi units on us 166 */ 167 config_found(dp, &sc->sc_link, ivscprint); 168 } 169 170 /* 171 * print diag if pnp is NULL else just extra 172 */ 173 int 174 ivscprint(auxp, pnp) 175 void *auxp; 176 char *pnp; 177 { 178 if (pnp == NULL) 179 return(UNCONF); 180 return(QUIET); 181 } 182 183 int 184 ivsc_dma_xfer_in (dev, len, buf, phase) 185 struct sci_softc *dev; 186 int len; 187 register u_char *buf; 188 int phase; 189 { 190 int wait = sci_data_wait; 191 u_char csr; 192 u_char *obp = buf; 193 volatile register u_char *sci_dma = dev->sci_idata + 0x20; 194 volatile register u_char *sci_csr = dev->sci_csr; 195 196 QPRINTF(("ivsc_dma_in %d, csr=%02x\n", len, *dev->sci_bus_csr)); 197 198 *dev->sci_tcmd = phase; 199 *dev->sci_mode |= SCI_MODE_DMA; 200 *dev->sci_irecv = 0; 201 202 while (len >= 128) { 203 wait = sci_data_wait; 204 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 205 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 206 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 207 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 208 || --wait < 0) { 209 #ifdef DEBUG 210 if (sci_debug) 211 printf("ivsc_dma_in2 fail: l%d i%x w%d\n", 212 len, csr, wait); 213 #endif 214 *dev->sci_mode &= ~SCI_MODE_DMA; 215 return 0; 216 } 217 } 218 219 #define R1 (*buf++ = *sci_dma) 220 R1; R1; R1; R1; R1; R1; R1; R1; 221 R1; R1; R1; R1; R1; R1; R1; R1; 222 R1; R1; R1; R1; R1; R1; R1; R1; 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 len -= 128; 237 } 238 239 while (len > 0) { 240 wait = sci_data_wait; 241 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 242 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 243 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 244 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 245 || --wait < 0) { 246 #ifdef DEBUG 247 if (sci_debug) 248 printf("ivsc_dma_in1 fail: l%d i%x w%d\n", 249 len, csr, wait); 250 #endif 251 *dev->sci_mode &= ~SCI_MODE_DMA; 252 return 0; 253 } 254 } 255 256 *buf++ = *sci_dma; 257 len--; 258 } 259 260 QPRINTF(("ivsc_dma_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 261 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 262 obp[6], obp[7], obp[8], obp[9])); 263 264 *dev->sci_mode &= ~SCI_MODE_DMA; 265 return 0; 266 } 267 268 int 269 ivsc_dma_xfer_out (dev, len, buf, phase) 270 struct sci_softc *dev; 271 int len; 272 register u_char *buf; 273 int phase; 274 { 275 int wait = sci_data_wait; 276 u_char csr; 277 u_char *obp = buf; 278 volatile register u_char *sci_dma = dev->sci_data + 0x20; 279 volatile register u_char *sci_csr = dev->sci_csr; 280 281 QPRINTF(("ivsc_dma_out %d, csr=%02x\n", len, *dev->sci_bus_csr)); 282 283 QPRINTF(("ivsc_dma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 284 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 285 buf[6], buf[7], buf[8], buf[9])); 286 287 *dev->sci_tcmd = phase; 288 *dev->sci_mode |= SCI_MODE_DMA; 289 *dev->sci_icmd |= SCI_ICMD_DATA; 290 *dev->sci_dma_send = 0; 291 while (len > 0) { 292 wait = sci_data_wait; 293 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 294 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 295 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 296 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 297 || --wait < 0) { 298 #ifdef DEBUG 299 if (sci_debug) 300 printf("ivsc_dma_out fail: l%d i%x w%d\n", 301 len, csr, wait); 302 #endif 303 *dev->sci_mode &= ~SCI_MODE_DMA; 304 return 0; 305 } 306 } 307 308 *sci_dma = *buf++; 309 len--; 310 } 311 312 wait = sci_data_wait; 313 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 314 SCI_CSR_PHASE_MATCH && --wait); 315 316 317 *dev->sci_mode &= ~SCI_MODE_DMA; 318 return 0; 319 } 320 321 int 322 ivsc_intr(dev) 323 struct sci_softc *dev; 324 { 325 u_char stat; 326 327 if ((*dev->sci_csr & SCI_CSR_INT) == 0) 328 return(0); 329 stat = *dev->sci_iack; 330 /* XXXX is: something is missing here, at least a: */ 331 return(1); 332 } 333
Indexes created Tue Sep 23 14:10:03 GMT 2025