oak.c revision 1.3
1 /* $NetBSD: oak.c,v 1.3 2001/07/04 15:01:08 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 * Oak SCSI 1 driver using the generic NCR5380 driver 41 * 42 * This driver is a bit crude, and only uses 8-bit PIO accesses to the 43 * card. It looks like the card can support pseudo-DMA, and can 44 * handle converting between the 5380's 8-bit data bus and the 16-bit 45 * podule bus in the process. We support none of this cleverness. 46 * 47 * This card has to be polled: it doesn't have anything connected to 48 * PIRQ*. This seems to be a common failing of Archimedes disc 49 * controllers. 50 */ 51 52 #include <sys/param.h> 53 54 __KERNEL_RCSID(0, "$NetBSD: oak.c,v 1.3 2001/07/04 15:01:08 bjh21 Exp $"); 55 56 #include <sys/systm.h> 57 #include <sys/kernel.h> 58 #include <sys/device.h> 59 #include <sys/buf.h> 60 #include <dev/scsipi/scsi_all.h> 61 #include <dev/scsipi/scsipi_all.h> 62 #include <dev/scsipi/scsiconf.h> 63 64 #include <dev/ic/ncr5380reg.h> 65 #include <dev/ic/ncr5380var.h> 66 67 #include <machine/bootconfig.h> 68 69 #include <dev/podulebus/podulebus.h> 70 #include <dev/podulebus/podules.h> 71 72 void oak_attach (struct device *, struct device *, void *); 73 int oak_match (struct device *, struct cfdata *, void *); 74 75 /* 76 * Oak SCSI 1 softc structure. 77 * 78 * Contains the generic ncr5380 device node, podule information and 79 * global information required by the driver. 80 */ 81 82 struct oak_softc { 83 struct ncr5380_softc sc_ncr5380; 84 }; 85 86 struct cfattach oak_ca = { 87 sizeof(struct oak_softc), oak_match, oak_attach 88 }; 89 90 /* 91 * Card probe function 92 * 93 * Just match the manufacturer and podule ID's 94 */ 95 96 int 97 oak_match(struct device *parent, struct cfdata *cf, void *aux) 98 { 99 struct podulebus_attach_args *pa = aux; 100 101 if (matchpodule(pa, MANUFACTURER_OAK, PODULE_OAK_SCSI, -1)) 102 return 1; 103 104 /* PowerROM */ 105 if (pa->pa_product == PODULE_ALSYSTEMS_SCSI && 106 podulebus_initloader(pa) == 0 && 107 podloader_callloader(pa, 0, 0) == PRID_OAK_SCSI1) 108 return 1; 109 110 } 111 112 /* 113 * Card attach function 114 * 115 */ 116 117 void 118 oak_attach(struct device *parent, struct device *self, void *aux) 119 { 120 struct oak_softc *sc = (struct oak_softc *)self; 121 struct podulebus_attach_args *pa = aux; 122 u_char *iobase; 123 char hi_option[sizeof(sc->sc_ncr5380.sc_dev.dv_xname) + 8]; 124 125 sc->sc_ncr5380.sc_flags |= NCR5380_FORCE_POLLING; 126 sc->sc_ncr5380.sc_min_dma_len = 0; 127 sc->sc_ncr5380.sc_no_disconnect = 0xff; 128 sc->sc_ncr5380.sc_parity_disable = 0xff; 129 130 sc->sc_ncr5380.sc_dma_alloc = NULL; 131 sc->sc_ncr5380.sc_dma_free = NULL; 132 sc->sc_ncr5380.sc_dma_poll = NULL; 133 sc->sc_ncr5380.sc_dma_setup = NULL; 134 sc->sc_ncr5380.sc_dma_start = NULL; 135 sc->sc_ncr5380.sc_dma_eop = NULL; 136 sc->sc_ncr5380.sc_dma_stop = NULL; 137 sc->sc_ncr5380.sc_intr_on = NULL; 138 sc->sc_ncr5380.sc_intr_off = NULL; 139 140 #ifdef NCR5380_USE_BUS_SPACE 141 sc->sc_ncr5380.sc_regt = pa->pa_mod_t; 142 bus_space_map(sc->sc_ncr5380.sc_regt, pa->pa_mod_base, 8, 0, 143 &sc->sc_ncr5380.sc_regh); 144 sc->sc_ncr5380.sci_r0 = 0; 145 sc->sc_ncr5380.sci_r1 = 1; 146 sc->sc_ncr5380.sci_r2 = 2; 147 sc->sc_ncr5380.sci_r3 = 3; 148 sc->sc_ncr5380.sci_r4 = 4; 149 sc->sc_ncr5380.sci_r5 = 5; 150 sc->sc_ncr5380.sci_r6 = 6; 151 sc->sc_ncr5380.sci_r7 = 7; 152 #else 153 iobase = (u_char *)pa->pa_mod_base; 154 sc->sc_ncr5380.sci_r0 = iobase + 0; 155 sc->sc_ncr5380.sci_r1 = iobase + 4; 156 sc->sc_ncr5380.sci_r2 = iobase + 8; 157 sc->sc_ncr5380.sci_r3 = iobase + 12; 158 sc->sc_ncr5380.sci_r4 = iobase + 16; 159 sc->sc_ncr5380.sci_r5 = iobase + 20; 160 sc->sc_ncr5380.sci_r6 = iobase + 24; 161 sc->sc_ncr5380.sci_r7 = iobase + 28; 162 #endif 163 164 sc->sc_ncr5380.sc_rev = NCR_VARIANT_NCR5380; 165 166 sc->sc_ncr5380.sc_pio_in = ncr5380_pio_in; 167 sc->sc_ncr5380.sc_pio_out = ncr5380_pio_out; 168 169 /* Provide an override for the host id */ 170 sc->sc_ncr5380.sc_channel.chan_id = 7; 171 sprintf(hi_option, "%s.hostid", sc->sc_ncr5380.sc_dev.dv_xname); 172 (void)get_bootconf_option(boot_args, hi_option, 173 BOOTOPT_TYPE_INT, &sc->sc_ncr5380.sc_channel.chan_id); 174 sc->sc_ncr5380.sc_adapter.adapt_minphys = minphys; 175 176 printf(": host=%d, using 8 bit PIO\n", 177 sc->sc_ncr5380.sc_channel.chan_id); 178 179 ncr5380_attach(&sc->sc_ncr5380); 180 } 181
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