csa.c revision 1.3
1 /* $NetBSD: csa.c,v 1.3 2002/05/22 22:43:18 bjh21 Exp $ */ 2 3 /* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Mark Brinicombe of Causality Limited. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Cumana SCSI 1 driver using the generic NCR5380 driver 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/device.h> 47 #include <sys/buf.h> 48 #include <dev/scsipi/scsi_all.h> 49 #include <dev/scsipi/scsipi_all.h> 50 #include <dev/scsipi/scsiconf.h> 51 52 #include <dev/ic/ncr5380reg.h> 53 #include <dev/ic/ncr5380var.h> 54 55 #include <machine/io.h> 56 #include <machine/intr.h> 57 #include <machine/bootconfig.h> 58 59 #include <acorn32/podulebus/podulebus.h> 60 #include <dev/podulebus/podules.h> 61 #include <dev/podulebus/powerromreg.h> 62 63 #define CSA_NCR5380_OFFSET 0x2100 64 #define CSA_CTRL_OFFSET 0x2000 - 2308 65 #define CSA_DIRWRITE 0x02 66 #define CSA_DIRREAD 0x00 67 #define CSA_16BITS 0x00 68 #define CSA_8BITS 0x10 69 #define CSA_XXX 0x40 70 #define CSA_DATA_OFFSET 0x2000 71 #define CSA_INTR_OFFSET 0x2000 72 #define CSA_INTR_MASK 0x80 73 #define CSA_STAT_OFFSET 0x2004 74 #define CSA_STAT_DRQ 0x40 75 #define CSA_STAT_END 0x80 76 77 void csa_attach __P((struct device *, struct device *, void *)); 78 int csa_match __P((struct device *, struct cfdata *, void *)); 79 80 /* 81 * Cumana SCSI 1 softc structure. 82 * 83 * Contains the generic ncr5380 device node, podule information and global information 84 * required by the driver. 85 */ 86 87 struct csa_softc { 88 struct ncr5380_softc sc_ncr5380; 89 void *sc_ih; 90 struct evcnt sc_intrcnt; 91 int sc_podule_number; 92 podule_t *sc_podule; 93 volatile u_char *sc_irqstatus; 94 u_char sc_irqmask; 95 volatile u_char *sc_ctrl; 96 volatile u_char *sc_status; 97 volatile u_char *sc_data; 98 }; 99 100 struct cfattach csa_ca = { 101 sizeof(struct csa_softc), csa_match, csa_attach 102 }; 103 104 int csa_intr __P((void *arg)); 105 106 /* 107 * Card probe function 108 * 109 * Just match the manufacturer and podule ID's 110 */ 111 112 int 113 csa_match(parent, cf, aux) 114 struct device *parent; 115 struct cfdata *cf; 116 void *aux; 117 { 118 struct podule_attach_args *pa = aux; 119 120 if (pa->pa_product == PODULE_CUMANA_SCSI1) 121 return(1); 122 123 /* PowerROM */ 124 if (pa->pa_product == PODULE_ALSYSTEMS_SCSI && 125 podulebus_initloader(pa) == 0 && 126 (podloader_callloader(pa, 0, 0) == PRID_CUMANA_SCSI1_8 || 127 podloader_callloader(pa, 0, 0) == PRID_CUMANA_SCSI1_16)) 128 return 1; 129 130 return 0; 131 } 132 133 /* 134 * Card attach function 135 * 136 */ 137 138 void 139 csa_attach(parent, self, aux) 140 struct device *parent, *self; 141 void *aux; 142 { 143 struct csa_softc *sc = (struct csa_softc *)self; 144 struct podule_attach_args *pa = aux; 145 u_char *iobase; 146 char hi_option[sizeof(sc->sc_ncr5380.sc_dev.dv_xname) + 8]; 147 148 /* Note the podule number and validate */ 149 150 if (pa->pa_podule_number == -1) 151 panic("Podule has disappeared !"); 152 153 sc->sc_podule_number = pa->pa_podule_number; 154 sc->sc_podule = pa->pa_podule; 155 podules[sc->sc_podule_number].attached = 1; 156 157 sc->sc_ncr5380.sc_flags |= NCR5380_FORCE_POLLING; 158 sc->sc_ncr5380.sc_min_dma_len = 0; 159 sc->sc_ncr5380.sc_no_disconnect = 0x00; 160 sc->sc_ncr5380.sc_parity_disable = 0x00; 161 162 sc->sc_ncr5380.sc_dma_alloc = NULL; 163 sc->sc_ncr5380.sc_dma_free = NULL; 164 sc->sc_ncr5380.sc_dma_poll = NULL; 165 sc->sc_ncr5380.sc_dma_setup = NULL; 166 sc->sc_ncr5380.sc_dma_start = NULL; 167 sc->sc_ncr5380.sc_dma_eop = NULL; 168 sc->sc_ncr5380.sc_dma_stop = NULL; 169 sc->sc_ncr5380.sc_intr_on = NULL; 170 sc->sc_ncr5380.sc_intr_off = NULL; 171 172 iobase = (u_char *)pa->pa_podule->slow_base + CSA_NCR5380_OFFSET; 173 sc->sc_ncr5380.sci_r0 = iobase + 0; 174 sc->sc_ncr5380.sci_r1 = iobase + 4; 175 sc->sc_ncr5380.sci_r2 = iobase + 8; 176 sc->sc_ncr5380.sci_r3 = iobase + 12; 177 sc->sc_ncr5380.sci_r4 = iobase + 16; 178 sc->sc_ncr5380.sci_r5 = iobase + 20; 179 sc->sc_ncr5380.sci_r6 = iobase + 24; 180 sc->sc_ncr5380.sci_r7 = iobase + 28; 181 182 sc->sc_ncr5380.sc_rev = NCR_VARIANT_NCR5380; 183 184 sc->sc_ctrl = (u_char *)pa->pa_podule->slow_base + CSA_CTRL_OFFSET; 185 sc->sc_status = (u_char *)pa->pa_podule->slow_base + CSA_STAT_OFFSET; 186 sc->sc_data = (u_char *)pa->pa_podule->slow_base + CSA_DATA_OFFSET; 187 188 sc->sc_ncr5380.sc_pio_in = ncr5380_pio_in; 189 sc->sc_ncr5380.sc_pio_out = ncr5380_pio_out; 190 191 /* Provide an override for the host id */ 192 sc->sc_ncr5380.sc_channel.chan_id = 7; 193 sprintf(hi_option, "%s.hostid", sc->sc_ncr5380.sc_dev.dv_xname); 194 (void)get_bootconf_option(boot_args, hi_option, 195 BOOTOPT_TYPE_INT, &sc->sc_ncr5380.sc_channel.chan_id); 196 sc->sc_ncr5380.sc_adapter.adapt_minphys = minphys; 197 198 printf(": host=%d, using 8 bit PIO", 199 sc->sc_ncr5380.sc_channel.chan_id); 200 201 sc->sc_irqstatus = (u_char *)pa->pa_podule->slow_base + CSA_INTR_OFFSET; 202 sc->sc_irqmask = CSA_INTR_MASK; 203 204 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 205 self->dv_xname, "intr"); 206 sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_BIO, csa_intr, sc, 207 &sc->sc_intrcnt); 208 if (sc->sc_ih == NULL) 209 sc->sc_ncr5380.sc_flags |= NCR5380_FORCE_POLLING; 210 211 if (sc->sc_ncr5380.sc_flags & NCR5380_FORCE_POLLING) 212 printf(", polling"); 213 printf("\n"); 214 *sc->sc_ctrl = 0; 215 216 ncr5380_attach(&sc->sc_ncr5380); 217 } 218 219 int 220 csa_intr(arg) 221 void *arg; 222 { 223 struct csa_softc *sc = arg; 224 225 if ((*sc->sc_irqstatus) & sc->sc_irqmask) 226 (void)ncr5380_intr(&sc->sc_ncr5380); 227 228 return(0); 229 } 230
Indexes created Wed Oct 01 19:09:53 GMT 2025