fdc_pnpbus.c revision 1.2.4.2
1 1.2.4.2 yamt /* $NetBSD: fdc_pnpbus.c,v 1.2.4.2 2008/05/16 02:23:03 yamt Exp $ */ 2 1.2.4.2 yamt 3 1.2.4.2 yamt /*- 4 1.2.4.2 yamt * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 1.2.4.2 yamt * All rights reserved. 6 1.2.4.2 yamt * 7 1.2.4.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 yamt * by Tim Rightnour 9 1.2.4.2 yamt * 10 1.2.4.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.4.2 yamt * modification, are permitted provided that the following conditions 12 1.2.4.2 yamt * are met: 13 1.2.4.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.4.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.4.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.4.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.4.2 yamt * 19 1.2.4.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.4.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.4.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.4.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.4.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.4.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.4.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.4.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.4.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.4.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.4.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.2.4.2 yamt */ 31 1.2.4.2 yamt 32 1.2.4.2 yamt /* 33 1.2.4.2 yamt * PNPBIOS attachment for the PC Floppy Controller driver. 34 1.2.4.2 yamt */ 35 1.2.4.2 yamt 36 1.2.4.2 yamt #include <sys/cdefs.h> 37 1.2.4.2 yamt __KERNEL_RCSID(0, "$NetBSD: fdc_pnpbus.c,v 1.2.4.2 2008/05/16 02:23:03 yamt Exp $"); 38 1.2.4.2 yamt 39 1.2.4.2 yamt #include "rnd.h" 40 1.2.4.2 yamt 41 1.2.4.2 yamt #include <sys/param.h> 42 1.2.4.2 yamt #include <sys/systm.h> 43 1.2.4.2 yamt #include <sys/callout.h> 44 1.2.4.2 yamt #include <sys/device.h> 45 1.2.4.2 yamt #include <sys/buf.h> 46 1.2.4.2 yamt #include <sys/queue.h> 47 1.2.4.2 yamt #if NRND > 0 48 1.2.4.2 yamt #include <sys/rnd.h> 49 1.2.4.2 yamt #endif 50 1.2.4.2 yamt 51 1.2.4.2 yamt #include <machine/bus.h> 52 1.2.4.2 yamt #include <machine/intr.h> 53 1.2.4.2 yamt #include <machine/isa_machdep.h> 54 1.2.4.2 yamt 55 1.2.4.2 yamt #include <dev/isa/isavar.h> 56 1.2.4.2 yamt #include <dev/isa/isadmavar.h> 57 1.2.4.2 yamt 58 1.2.4.2 yamt #include <dev/isa/fdcvar.h> 59 1.2.4.2 yamt 60 1.2.4.2 yamt #include <prep/pnpbus/pnpbusvar.h> 61 1.2.4.2 yamt 62 1.2.4.2 yamt static int fdc_pnpbus_match(device_t, cfdata_t, void *); 63 1.2.4.2 yamt static void fdc_pnpbus_attach(device_t, device_t, void *); 64 1.2.4.2 yamt 65 1.2.4.2 yamt struct fdc_pnpbus_softc { 66 1.2.4.2 yamt struct fdc_softc sc_fdc; /* base fdc device */ 67 1.2.4.2 yamt 68 1.2.4.2 yamt bus_space_handle_t sc_baseioh; /* base I/O handle */ 69 1.2.4.2 yamt }; 70 1.2.4.2 yamt 71 1.2.4.2 yamt CFATTACH_DECL2_NEW(fdc_pnpbus, sizeof(struct fdc_pnpbus_softc), 72 1.2.4.2 yamt fdc_pnpbus_match, fdc_pnpbus_attach, NULL, NULL, NULL, NULL); 73 1.2.4.2 yamt 74 1.2.4.2 yamt static int 75 1.2.4.2 yamt fdc_pnpbus_match(device_t parent, cfdata_t match, void *aux) 76 1.2.4.2 yamt { 77 1.2.4.2 yamt struct pnpbus_dev_attach_args *pna = aux; 78 1.2.4.2 yamt int ret = 0; 79 1.2.4.2 yamt 80 1.2.4.2 yamt if (strcmp(pna->pna_devid, "PNP0700") == 0) 81 1.2.4.2 yamt ret = 1; 82 1.2.4.2 yamt 83 1.2.4.2 yamt if (ret) 84 1.2.4.2 yamt pnpbus_scan(pna, pna->pna_ppc_dev); 85 1.2.4.2 yamt 86 1.2.4.2 yamt return ret; 87 1.2.4.2 yamt } 88 1.2.4.2 yamt 89 1.2.4.2 yamt static void 90 1.2.4.2 yamt fdc_pnpbus_attach(device_t parent, device_t self, void *aux) 91 1.2.4.2 yamt { 92 1.2.4.2 yamt struct fdc_pnpbus_softc *pdc = device_private(self); 93 1.2.4.2 yamt struct fdc_softc *fdc = &pdc->sc_fdc; 94 1.2.4.2 yamt struct pnpbus_dev_attach_args *pna = aux; 95 1.2.4.2 yamt int size, base; 96 1.2.4.2 yamt 97 1.2.4.2 yamt fdc->sc_dev = self; 98 1.2.4.2 yamt fdc->sc_ic = pna->pna_ic; 99 1.2.4.2 yamt 100 1.2.4.2 yamt if (pnpbus_io_map(&pna->pna_res, 0, &fdc->sc_iot, &pdc->sc_baseioh)) { 101 1.2.4.2 yamt aprint_error_dev(self, "unable to map I/O space\n"); 102 1.2.4.2 yamt return; 103 1.2.4.2 yamt } 104 1.2.4.2 yamt 105 1.2.4.2 yamt /* 106 1.2.4.2 yamt * Start accounting for "odd" pnpbus's. Some probe as 4 ports, 107 1.2.4.2 yamt * some as 6 and some don't give the ctl port back. 108 1.2.4.2 yamt */ 109 1.2.4.2 yamt 110 1.2.4.2 yamt if (pnpbus_getioport(&pna->pna_res, 0, &base, &size)) { 111 1.2.4.2 yamt aprint_error_dev(self, "can't get iobase size\n"); 112 1.2.4.2 yamt return; 113 1.2.4.2 yamt } 114 1.2.4.2 yamt 115 1.2.4.2 yamt switch (size) { 116 1.2.4.2 yamt 117 1.2.4.2 yamt /* Easy case. This matches right up with what the fdc code expects. */ 118 1.2.4.2 yamt case 4: 119 1.2.4.2 yamt fdc->sc_ioh = pdc->sc_baseioh; 120 1.2.4.2 yamt break; 121 1.2.4.2 yamt 122 1.2.4.2 yamt /* Map a subregion so this all lines up with the fdc code. */ 123 1.2.4.2 yamt case 6: 124 1.2.4.2 yamt if (bus_space_subregion(fdc->sc_iot, pdc->sc_baseioh, 2, 4, 125 1.2.4.2 yamt &fdc->sc_ioh)) { 126 1.2.4.2 yamt aprint_error_dev(self, 127 1.2.4.2 yamt "unable to subregion I/O space\n"); 128 1.2.4.2 yamt return; 129 1.2.4.2 yamt } 130 1.2.4.2 yamt break; 131 1.2.4.2 yamt default: 132 1.2.4.2 yamt aprint_error_dev(self, "unknown size: %d of io mapping\n", size); 133 1.2.4.2 yamt return; 134 1.2.4.2 yamt } 135 1.2.4.2 yamt 136 1.2.4.2 yamt /* 137 1.2.4.2 yamt * XXX: This is bad. If the pnpbus claims only 1 I/O range then it's 138 1.2.4.2 yamt * omitting the controller I/O port. (One has to exist for there to 139 1.2.4.2 yamt * be a working fdc). Just try and force the mapping in. 140 1.2.4.2 yamt */ 141 1.2.4.2 yamt 142 1.2.4.2 yamt if (pna->pna_res.numio == 1) { 143 1.2.4.2 yamt if (bus_space_map(fdc->sc_iot, base + size + 1, 1, 0, 144 1.2.4.2 yamt &fdc->sc_fdctlioh)) { 145 1.2.4.2 yamt aprint_error_dev(self, 146 1.2.4.2 yamt "unable to force map CTL I/O space\n"); 147 1.2.4.2 yamt return; 148 1.2.4.2 yamt } 149 1.2.4.2 yamt } else if (pnpbus_io_map(&pna->pna_res, 1, &fdc->sc_iot, 150 1.2.4.2 yamt &fdc->sc_fdctlioh)) { 151 1.2.4.2 yamt aprint_error_dev(self, "unable to map CTL I/O space\n"); 152 1.2.4.2 yamt return; 153 1.2.4.2 yamt } 154 1.2.4.2 yamt 155 1.2.4.2 yamt if (pnpbus_getdmachan(&pna->pna_res, 0, &fdc->sc_drq)) { 156 1.2.4.2 yamt aprint_error_dev(self, "unable to get DMA channel\n"); 157 1.2.4.2 yamt return; 158 1.2.4.2 yamt } 159 1.2.4.2 yamt 160 1.2.4.2 yamt if (pna->pna_res.numio == 1) 161 1.2.4.2 yamt aprint_normal_dev(self, 162 1.2.4.2 yamt "ctl io %x didn't probe. Forced attach\n", base + size + 1); 163 1.2.4.2 yamt 164 1.2.4.2 yamt aprint_normal("\n"); 165 1.2.4.2 yamt 166 1.2.4.2 yamt /* The 7043-140 gets the type wrong, so overide to edge allways */ 167 1.2.4.2 yamt fdc->sc_ih = pnpbus_intr_establish(0, IPL_BIO, IST_EDGE, fdcintr, fdc, 168 1.2.4.2 yamt &pna->pna_res); 169 1.2.4.2 yamt 170 1.2.4.2 yamt fdcattach(fdc); 171 1.2.4.2 yamt } 172
Indexes created Sun Oct 26 21:10:03 GMT 2025