fdc_pnpbios.c revision 1.3.2.2
1 1.3.2.2 lukem /* $NetBSD: fdc_pnpbios.c,v 1.3.2.2 2001/11/15 07:03:36 lukem Exp $ */ 2 1.3.2.2 lukem 3 1.3.2.2 lukem /*- 4 1.3.2.2 lukem * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 1.3.2.2 lukem * All rights reserved. 6 1.3.2.2 lukem * 7 1.3.2.2 lukem * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 lukem * by Jason R. Thorpe. 9 1.3.2.2 lukem * 10 1.3.2.2 lukem * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 lukem * modification, are permitted provided that the following conditions 12 1.3.2.2 lukem * are met: 13 1.3.2.2 lukem * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 lukem * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 lukem * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 lukem * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 lukem * documentation and/or other materials provided with the distribution. 18 1.3.2.2 lukem * 3. All advertising materials mentioning features or use of this software 19 1.3.2.2 lukem * must display the following acknowledgement: 20 1.3.2.2 lukem * This product includes software developed by the NetBSD 21 1.3.2.2 lukem * Foundation, Inc. and its contributors. 22 1.3.2.2 lukem * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.3.2.2 lukem * contributors may be used to endorse or promote products derived 24 1.3.2.2 lukem * from this software without specific prior written permission. 25 1.3.2.2 lukem * 26 1.3.2.2 lukem * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.3.2.2 lukem * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.3.2.2 lukem * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.3.2.2 lukem * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.3.2.2 lukem * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.3.2.2 lukem * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.3.2.2 lukem * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.3.2.2 lukem * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.3.2.2 lukem * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.3.2.2 lukem * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.3.2.2 lukem * POSSIBILITY OF SUCH DAMAGE. 37 1.3.2.2 lukem */ 38 1.3.2.2 lukem 39 1.3.2.2 lukem /* 40 1.3.2.2 lukem * PNPBIOS attachment for the PC Floppy Controller driver. 41 1.3.2.2 lukem */ 42 1.3.2.2 lukem 43 1.3.2.2 lukem #include <sys/cdefs.h> 44 1.3.2.2 lukem __KERNEL_RCSID(0, "$NetBSD: fdc_pnpbios.c,v 1.3.2.2 2001/11/15 07:03:36 lukem Exp $"); 45 1.3.2.2 lukem 46 1.3.2.2 lukem #include "rnd.h" 47 1.3.2.2 lukem 48 1.3.2.2 lukem #include <sys/param.h> 49 1.3.2.2 lukem #include <sys/systm.h> 50 1.3.2.2 lukem #include <sys/callout.h> 51 1.3.2.2 lukem #include <sys/device.h> 52 1.3.2.2 lukem #include <sys/buf.h> 53 1.3.2.2 lukem #include <sys/queue.h> 54 1.3.2.2 lukem #if NRND > 0 55 1.3.2.2 lukem #include <sys/rnd.h> 56 1.3.2.2 lukem #endif 57 1.3.2.2 lukem 58 1.3.2.2 lukem #include <machine/bus.h> 59 1.3.2.2 lukem #include <machine/intr.h> 60 1.3.2.2 lukem 61 1.3.2.2 lukem #include <dev/isa/isavar.h> 62 1.3.2.2 lukem #include <dev/isa/isadmavar.h> 63 1.3.2.2 lukem 64 1.3.2.2 lukem #include <dev/isa/fdcvar.h> 65 1.3.2.2 lukem 66 1.3.2.2 lukem #include <i386/pnpbios/pnpbiosvar.h> 67 1.3.2.2 lukem 68 1.3.2.2 lukem int fdc_pnpbios_match(struct device *, struct cfdata *, void *); 69 1.3.2.2 lukem void fdc_pnpbios_attach(struct device *, struct device *, void *); 70 1.3.2.2 lukem 71 1.3.2.2 lukem struct fdc_pnpbios_softc { 72 1.3.2.2 lukem struct fdc_softc sc_fdc; /* base fdc device */ 73 1.3.2.2 lukem 74 1.3.2.2 lukem bus_space_handle_t sc_baseioh; /* base I/O handle */ 75 1.3.2.2 lukem }; 76 1.3.2.2 lukem 77 1.3.2.2 lukem 78 1.3.2.2 lukem struct cfattach fdc_pnpbios_ca = { 79 1.3.2.2 lukem sizeof(struct fdc_pnpbios_softc), fdc_pnpbios_match, 80 1.3.2.2 lukem fdc_pnpbios_attach, 81 1.3.2.2 lukem }; 82 1.3.2.2 lukem 83 1.3.2.2 lukem int 84 1.3.2.2 lukem fdc_pnpbios_match(struct device *parent, 85 1.3.2.2 lukem struct cfdata *match, 86 1.3.2.2 lukem void *aux) 87 1.3.2.2 lukem { 88 1.3.2.2 lukem struct pnpbiosdev_attach_args *aa = aux; 89 1.3.2.2 lukem 90 1.3.2.2 lukem if (strcmp(aa->idstr, "PNP0700") == 0) 91 1.3.2.2 lukem return (1); 92 1.3.2.2 lukem 93 1.3.2.2 lukem return (0); 94 1.3.2.2 lukem } 95 1.3.2.2 lukem 96 1.3.2.2 lukem void 97 1.3.2.2 lukem fdc_pnpbios_attach(struct device *parent, 98 1.3.2.2 lukem struct device *self, 99 1.3.2.2 lukem void *aux) 100 1.3.2.2 lukem { 101 1.3.2.2 lukem struct fdc_softc *fdc = (void *) self; 102 1.3.2.2 lukem struct fdc_pnpbios_softc *pdc = (void *) self; 103 1.3.2.2 lukem struct pnpbiosdev_attach_args *aa = aux; 104 1.3.2.2 lukem int size, base; 105 1.3.2.2 lukem 106 1.3.2.2 lukem printf("\n"); 107 1.3.2.2 lukem 108 1.3.2.2 lukem fdc->sc_ic = aa->ic; 109 1.3.2.2 lukem 110 1.3.2.2 lukem if (pnpbios_io_map(aa->pbt, aa->resc, 0, &fdc->sc_iot, 111 1.3.2.2 lukem &pdc->sc_baseioh)) { 112 1.3.2.2 lukem printf("%s: unable to map I/O space\n", fdc->sc_dev.dv_xname); 113 1.3.2.2 lukem return; 114 1.3.2.2 lukem } 115 1.3.2.2 lukem 116 1.3.2.2 lukem /* 117 1.3.2.2 lukem * Start accounting for "odd" pnpbios's. Some probe as 4 ports, 118 1.3.2.2 lukem * some as 6 and some don't give the ctl port back. 119 1.3.2.2 lukem */ 120 1.3.2.2 lukem 121 1.3.2.2 lukem if (pnpbios_getiosize(aa->pbt, aa->resc, 0, &size)) { 122 1.3.2.2 lukem printf("%s: can't get iobase size\n", fdc->sc_dev.dv_xname); 123 1.3.2.2 lukem return; 124 1.3.2.2 lukem } 125 1.3.2.2 lukem 126 1.3.2.2 lukem switch (size) { 127 1.3.2.2 lukem 128 1.3.2.2 lukem /* Easy case. This matches right up with what the fdc code expects. */ 129 1.3.2.2 lukem case 4: 130 1.3.2.2 lukem fdc->sc_ioh = pdc->sc_baseioh; 131 1.3.2.2 lukem break; 132 1.3.2.2 lukem 133 1.3.2.2 lukem /* Map a subregion so this all lines up with the fdc code. */ 134 1.3.2.2 lukem case 6: 135 1.3.2.2 lukem if (bus_space_subregion(fdc->sc_iot, pdc->sc_baseioh, 2, 4, 136 1.3.2.2 lukem &fdc->sc_ioh)) { 137 1.3.2.2 lukem printf("%s: unable to subregion I/O space\n", 138 1.3.2.2 lukem fdc->sc_dev.dv_xname); 139 1.3.2.2 lukem return; 140 1.3.2.2 lukem } 141 1.3.2.2 lukem break; 142 1.3.2.2 lukem default: 143 1.3.2.2 lukem printf ("%s: unknown size: %d of io mapping\n", 144 1.3.2.2 lukem fdc->sc_dev.dv_xname, size); 145 1.3.2.2 lukem return; 146 1.3.2.2 lukem } 147 1.3.2.2 lukem 148 1.3.2.2 lukem /* 149 1.3.2.2 lukem * XXX: This is bad. If the pnpbios claims only 1 I/O range then it's 150 1.3.2.2 lukem * omitting the controller I/O port. (One has to exist for there to 151 1.3.2.2 lukem * be a working fdc). Just try and force the mapping in. 152 1.3.2.2 lukem */ 153 1.3.2.2 lukem 154 1.3.2.2 lukem if (aa->resc->numio == 1) { 155 1.3.2.2 lukem 156 1.3.2.2 lukem if (pnpbios_getiobase(aa->pbt, aa->resc, 0, 0, &base)) { 157 1.3.2.2 lukem printf ("%s: can't get iobase\n", 158 1.3.2.2 lukem fdc->sc_dev.dv_xname); 159 1.3.2.2 lukem return; 160 1.3.2.2 lukem } 161 1.3.2.2 lukem if (bus_space_map(fdc->sc_iot, base + size + 1, 1, 0, 162 1.3.2.2 lukem &fdc->sc_fdctlioh)) { 163 1.3.2.2 lukem printf("%s: unable to force map CTL I/O space\n", 164 1.3.2.2 lukem fdc->sc_dev.dv_xname); 165 1.3.2.2 lukem return; 166 1.3.2.2 lukem } 167 1.3.2.2 lukem } else if (pnpbios_io_map(aa->pbt, aa->resc, 1, &fdc->sc_iot, 168 1.3.2.2 lukem &fdc->sc_fdctlioh)) { 169 1.3.2.2 lukem printf("%s: unable to map CTL I/O space\n", 170 1.3.2.2 lukem fdc->sc_dev.dv_xname); 171 1.3.2.2 lukem return; 172 1.3.2.2 lukem } 173 1.3.2.2 lukem 174 1.3.2.2 lukem if (pnpbios_getdmachan(aa->pbt, aa->resc, 0, &fdc->sc_drq)) { 175 1.3.2.2 lukem printf("%s: unable to get DMA channel\n", 176 1.3.2.2 lukem fdc->sc_dev.dv_xname); 177 1.3.2.2 lukem return; 178 1.3.2.2 lukem } 179 1.3.2.2 lukem 180 1.3.2.2 lukem pnpbios_print_devres(self, aa); 181 1.3.2.2 lukem if (aa->resc->numio == 1) 182 1.3.2.2 lukem printf("%s: ctl io %x didn't probe. Forced attach\n", 183 1.3.2.2 lukem fdc->sc_dev.dv_xname, base + size + 1); 184 1.3.2.2 lukem 185 1.3.2.2 lukem fdc->sc_ih = pnpbios_intr_establish(aa->pbt, aa->resc, 0, IPL_BIO, 186 1.3.2.2 lukem fdcintr, fdc); 187 1.3.2.2 lukem 188 1.3.2.2 lukem fdcattach(fdc); 189 1.3.2.2 lukem } 190
Indexes created Fri Oct 31 11:10:07 GMT 2025