ivsc.c revision 1.37
1 /* $NetBSD: ivsc.c,v 1.37 2014/01/22 00:25:16 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 * @(#)ivsdma.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 * @(#)ivsdma.c 58 */ 59 60 #include <sys/cdefs.h> 61 __KERNEL_RCSID(0, "$NetBSD: ivsc.c,v 1.37 2014/01/22 00:25:16 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/custom.h> 71 #include <amiga/amiga/device.h> 72 #include <amiga/amiga/isr.h> 73 #include <amiga/dev/scireg.h> 74 #include <amiga/dev/scivar.h> 75 #include <amiga/dev/zbusvar.h> 76 77 void ivscattach(device_t, device_t, void *); 78 int ivscmatch(device_t, cfdata_t, void *); 79 80 int ivsc_intr(void *); 81 int ivsc_dma_xfer_in(struct sci_softc *dev, int len, 82 register u_char *buf, int phase); 83 int ivsc_dma_xfer_out(struct sci_softc *dev, int len, 84 register u_char *buf, int phase); 85 86 87 #ifdef DEBUG 88 extern int sci_debug; 89 #define QPRINTF(a) if (sci_debug > 1) printf a 90 #else 91 #define QPRINTF(a) 92 #endif 93 94 extern int sci_data_wait; 95 96 int ivsdma_pseudo = 1; /* 0=off, 1=on */ 97 98 CFATTACH_DECL_NEW(ivsc, sizeof(struct sci_softc), 99 ivscmatch, ivscattach, NULL, NULL); 100 101 /* 102 * if this is an IVS board 103 */ 104 int 105 ivscmatch(device_t parent, cfdata_t cf, void *aux) 106 { 107 struct zbus_args *zap; 108 109 zap = aux; 110 111 /* 112 * Check manufacturer and product id. 113 */ 114 if (zap->manid != 2112 || /* If manufacturer is IVS */ 115 (zap->prodid != 48 && /* product = Trumpcard 500 */ 116 zap->prodid != 52 && /* product = Trumpcard */ 117 zap->prodid != 243)) /* product = Vector SCSI */ 118 return(0); /* didn't match */ 119 return(1); 120 } 121 122 void 123 ivscattach(device_t parent, device_t self, void *aux) 124 { 125 volatile u_char *rp; 126 struct sci_softc *sc = device_private(self); 127 struct zbus_args *zap; 128 struct scsipi_adapter *adapt = &sc->sc_adapter; 129 struct scsipi_channel *chan = &sc->sc_channel; 130 131 sc->sc_dev = self; 132 133 printf("\n"); 134 135 zap = aux; 136 137 rp = (u_char *)zap->va + 0x40; 138 sc->sci_data = rp; 139 sc->sci_odata = rp; 140 sc->sci_icmd = rp + 2; 141 sc->sci_mode = rp + 4; 142 sc->sci_tcmd = rp + 6; 143 sc->sci_bus_csr = rp + 8; 144 sc->sci_sel_enb = rp + 8; 145 sc->sci_csr = rp + 10; 146 sc->sci_dma_send = rp + 10; 147 sc->sci_idata = rp + 12; 148 sc->sci_trecv = rp + 12; 149 sc->sci_iack = rp + 14; 150 sc->sci_irecv = rp + 14; 151 152 if (ivsdma_pseudo == 1) { 153 sc->dma_xfer_in = ivsc_dma_xfer_in; 154 sc->dma_xfer_out = ivsc_dma_xfer_out; 155 } 156 157 sc->sc_isr.isr_intr = ivsc_intr; 158 sc->sc_isr.isr_arg = sc; 159 sc->sc_isr.isr_ipl = 2; 160 add_isr(&sc->sc_isr); 161 162 scireset(sc); 163 164 /* 165 * Fill in the scsipi_adapter. 166 */ 167 memset(adapt, 0, sizeof(*adapt)); 168 adapt->adapt_dev = self; 169 adapt->adapt_nchannels = 1; 170 adapt->adapt_openings = 7; 171 adapt->adapt_max_periph = 1; 172 adapt->adapt_request = sci_scsipi_request; 173 adapt->adapt_minphys = sci_minphys; 174 175 /* 176 * Fill in the scsipi_channel. 177 */ 178 memset(chan, 0, sizeof(*chan)); 179 chan->chan_adapter = adapt; 180 chan->chan_bustype = &scsi_bustype; 181 chan->chan_channel = 0; 182 chan->chan_ntargets = 8; 183 chan->chan_nluns = 8; 184 chan->chan_id = 7; 185 186 /* 187 * attach all scsi units on us 188 */ 189 config_found(self, chan, scsiprint); 190 } 191 192 int 193 ivsc_dma_xfer_in(struct sci_softc *dev, int len, register u_char *buf, 194 int phase) 195 { 196 int wait = sci_data_wait; 197 volatile register u_char *sci_dma = dev->sci_idata + 0x20; 198 volatile register u_char *sci_csr = dev->sci_csr; 199 #ifdef DEBUG 200 u_char *obp = buf; 201 #endif 202 203 QPRINTF(("ivsc_dma_in %d, csr=%02x\n", len, *dev->sci_bus_csr)); 204 205 *dev->sci_tcmd = phase; 206 *dev->sci_mode |= SCI_MODE_DMA; 207 *dev->sci_irecv = 0; 208 209 while (len >= 128) { 210 wait = sci_data_wait; 211 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 212 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 213 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 214 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 215 || --wait < 0) { 216 #ifdef DEBUG 217 if (sci_debug) 218 printf("ivsc_dma_in2 fail: l%d i%x w%d\n", 219 len, *dev->sci_bus_csr, wait); 220 #endif 221 *dev->sci_mode &= ~SCI_MODE_DMA; 222 return 0; 223 } 224 } 225 226 #define R1 (*buf++ = *sci_dma) 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 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 len -= 128; 244 } 245 246 while (len > 0) { 247 wait = sci_data_wait; 248 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 249 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 250 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 251 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 252 || --wait < 0) { 253 #ifdef DEBUG 254 if (sci_debug) 255 printf("ivsc_dma_in1 fail: l%d i%x w%d\n", 256 len, *dev->sci_bus_csr, wait); 257 #endif 258 *dev->sci_mode &= ~SCI_MODE_DMA; 259 return 0; 260 } 261 } 262 263 *buf++ = *sci_dma; 264 len--; 265 } 266 267 QPRINTF(("ivsc_dma_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 268 len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5], 269 obp[6], obp[7], obp[8], obp[9])); 270 271 *dev->sci_mode &= ~SCI_MODE_DMA; 272 return 0; 273 } 274 275 int 276 ivsc_dma_xfer_out(struct sci_softc *dev, int len, register u_char *buf, 277 int phase) 278 { 279 int wait = sci_data_wait; 280 volatile register u_char *sci_dma = dev->sci_data + 0x20; 281 volatile register u_char *sci_csr = dev->sci_csr; 282 283 QPRINTF(("ivsc_dma_out %d, csr=%02x\n", len, *dev->sci_bus_csr)); 284 285 QPRINTF(("ivsc_dma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", 286 len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], 287 buf[6], buf[7], buf[8], buf[9])); 288 289 *dev->sci_tcmd = phase; 290 *dev->sci_mode |= SCI_MODE_DMA; 291 *dev->sci_icmd |= SCI_ICMD_DATA; 292 *dev->sci_dma_send = 0; 293 while (len > 0) { 294 wait = sci_data_wait; 295 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) != 296 (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) { 297 if (!(*sci_csr & SCI_CSR_PHASE_MATCH) 298 || !(*dev->sci_bus_csr & SCI_BUS_BSY) 299 || --wait < 0) { 300 #ifdef DEBUG 301 if (sci_debug) 302 printf("ivsc_dma_out fail: l%d i%x w%d\n", 303 len, *dev->sci_bus_csr, wait); 304 #endif 305 *dev->sci_mode &= ~SCI_MODE_DMA; 306 return 0; 307 } 308 } 309 310 *sci_dma = *buf++; 311 len--; 312 } 313 314 wait = sci_data_wait; 315 while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) == 316 SCI_CSR_PHASE_MATCH && --wait); 317 318 319 *dev->sci_mode &= ~SCI_MODE_DMA; 320 return 0; 321 } 322 323 int 324 ivsc_intr(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 __USE(stat); 333 /* XXXX is: something is missing here, at least a: */ 334 return(1); 335 } 336
Indexes created Mon Sep 22 10:09:38 GMT 2025