csa.c revision 1.9
1 /* $NetBSD: csa.c,v 1.9 2008/04/04 16:00:57 tsutsui 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/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: csa.c,v 1.9 2008/04/04 16:00:57 tsutsui Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/device.h> 50 #include <sys/buf.h> 51 #include <dev/scsipi/scsi_all.h> 52 #include <dev/scsipi/scsipi_all.h> 53 #include <dev/scsipi/scsiconf.h> 54 55 #include <dev/ic/ncr5380reg.h> 56 #include <dev/ic/ncr5380var.h> 57 58 #include <machine/io.h> 59 #include <machine/intr.h> 60 #include <machine/bootconfig.h> 61 62 #include <acorn32/podulebus/podulebus.h> 63 #include <dev/podulebus/podules.h> 64 #include <dev/podulebus/powerromreg.h> 65 66 #define CSA_NCR5380_OFFSET 0x2100 67 #define CSA_CTRL_OFFSET 0x2000 - 2308 68 #define CSA_DIRWRITE 0x02 69 #define CSA_DIRREAD 0x00 70 #define CSA_16BITS 0x00 71 #define CSA_8BITS 0x10 72 #define CSA_XXX 0x40 73 #define CSA_DATA_OFFSET 0x2000 74 #define CSA_INTR_OFFSET 0x2000 75 #define CSA_INTR_MASK 0x80 76 #define CSA_STAT_OFFSET 0x2004 77 #define CSA_STAT_DRQ 0x40 78 #define CSA_STAT_END 0x80 79 80 int csa_match(device_t, cfdata_t, void *); 81 void csa_attach(device_t, device_t, void *); 82 83 /* 84 * Cumana SCSI 1 softc structure. 85 * 86 * Contains the generic ncr5380 device node, 87 * podule information and global information 88 * required by the driver. 89 */ 90 91 struct csa_softc { 92 struct ncr5380_softc sc_ncr5380; 93 void *sc_ih; 94 struct evcnt sc_intrcnt; 95 int sc_podule_number; 96 podule_t *sc_podule; 97 volatile uint8_t *sc_irqstatus; 98 uint8_t sc_irqmask; 99 volatile uint8_t *sc_ctrl; 100 volatile uint8_t *sc_status; 101 volatile uint8_t *sc_data; 102 }; 103 104 CFATTACH_DECL_NEW(csa, sizeof(struct csa_softc), 105 csa_match, csa_attach, NULL, NULL); 106 107 int csa_intr(void *arg); 108 109 /* 110 * Card probe function 111 * 112 * Just match the manufacturer and podule ID's 113 */ 114 115 int 116 csa_match(device_t parent, cfdata_t cf, 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(device_t parent, device_t self, void *aux) 140 { 141 struct csa_softc *sc = device_private(self); 142 struct ncr5380_softc *ncr_sc = &sc->sc_ncr5380; 143 struct podule_attach_args *pa = aux; 144 uint8_t *iobase; 145 char hi_option[sizeof(self->dv_xname) + 8]; 146 147 ncr_sc->sc_dev = self; 148 149 /* Note the podule number and validate */ 150 151 if (pa->pa_podule_number == -1) 152 panic("Podule has disappeared !"); 153 154 sc->sc_podule_number = pa->pa_podule_number; 155 sc->sc_podule = pa->pa_podule; 156 podules[sc->sc_podule_number].attached = 1; 157 158 ncr_sc->sc_flags |= NCR5380_FORCE_POLLING; 159 ncr_sc->sc_min_dma_len = 0; 160 ncr_sc->sc_no_disconnect = 0x00; 161 ncr_sc->sc_parity_disable = 0x00; 162 163 ncr_sc->sc_dma_alloc = NULL; 164 ncr_sc->sc_dma_free = NULL; 165 ncr_sc->sc_dma_poll = NULL; 166 ncr_sc->sc_dma_setup = NULL; 167 ncr_sc->sc_dma_start = NULL; 168 ncr_sc->sc_dma_eop = NULL; 169 ncr_sc->sc_dma_stop = NULL; 170 ncr_sc->sc_intr_on = NULL; 171 ncr_sc->sc_intr_off = NULL; 172 173 iobase = (uint8_t *)pa->pa_podule->slow_base + CSA_NCR5380_OFFSET; 174 ncr_sc->sci_r0 = iobase + 0; 175 ncr_sc->sci_r1 = iobase + 4; 176 ncr_sc->sci_r2 = iobase + 8; 177 ncr_sc->sci_r3 = iobase + 12; 178 ncr_sc->sci_r4 = iobase + 16; 179 ncr_sc->sci_r5 = iobase + 20; 180 ncr_sc->sci_r6 = iobase + 24; 181 ncr_sc->sci_r7 = iobase + 28; 182 183 ncr_sc->sc_rev = NCR_VARIANT_NCR5380; 184 185 sc->sc_ctrl = (uint8_t *)pa->pa_podule->slow_base + CSA_CTRL_OFFSET; 186 sc->sc_status = (uint8_t *)pa->pa_podule->slow_base + CSA_STAT_OFFSET; 187 sc->sc_data = (uint8_t *)pa->pa_podule->slow_base + CSA_DATA_OFFSET; 188 189 ncr_sc->sc_pio_in = ncr5380_pio_in; 190 ncr_sc->sc_pio_out = ncr5380_pio_out; 191 192 /* Provide an override for the host id */ 193 ncr_sc->sc_channel.chan_id = 7; 194 sprintf(hi_option, "%s.hostid", device_xname(self)); 195 (void)get_bootconf_option(boot_args, hi_option, 196 BOOTOPT_TYPE_INT, &ncr_sc->sc_channel.chan_id); 197 ncr_sc->sc_adapter.adapt_minphys = minphys; 198 199 aprint_normal(": host=%d, using 8 bit PIO", 200 ncr_sc->sc_channel.chan_id); 201 202 sc->sc_irqstatus = 203 (uint8_t *)pa->pa_podule->slow_base + CSA_INTR_OFFSET; 204 sc->sc_irqmask = CSA_INTR_MASK; 205 206 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 207 device_xname(self), "intr"); 208 sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_BIO, csa_intr, sc, 209 &sc->sc_intrcnt); 210 if (sc->sc_ih == NULL) 211 ncr_sc->sc_flags |= NCR5380_FORCE_POLLING; 212 213 if (ncr_sc->sc_flags & NCR5380_FORCE_POLLING) 214 aprint_normal(", polling"); 215 aprint_normal("\n"); 216 *sc->sc_ctrl = 0; 217 218 ncr5380_attach(ncr_sc); 219 } 220 221 int 222 csa_intr(void *arg) 223 { 224 struct csa_softc *sc = arg; 225 226 if ((*sc->sc_irqstatus) & sc->sc_irqmask) 227 (void)ncr5380_intr(&sc->sc_ncr5380); 228 229 return 0; 230 } 231
Indexes created Wed Oct 01 19:09:53 GMT 2025