fdcisa.c revision 1.1.2.2
1 1.1.2.2 bouyer /* $NetBSD: fdcisa.c,v 1.1.2.2 2001/03/27 15:30:37 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by Charles M. Hannum. 9 1.1.2.2 bouyer * 10 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.2.2 bouyer * are met: 13 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 bouyer * must display the following acknowledgement: 20 1.1.2.2 bouyer * This product includes software developed by the NetBSD 21 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.2.2 bouyer * from this software without specific prior written permission. 25 1.1.2.2 bouyer * 26 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 bouyer */ 38 1.1.2.2 bouyer 39 1.1.2.2 bouyer /*- 40 1.1.2.2 bouyer * Copyright (c) 1990 The Regents of the University of California. 41 1.1.2.2 bouyer * All rights reserved. 42 1.1.2.2 bouyer * 43 1.1.2.2 bouyer * This code is derived from software contributed to Berkeley by 44 1.1.2.2 bouyer * Don Ahn. 45 1.1.2.2 bouyer * 46 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 47 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 48 1.1.2.2 bouyer * are met: 49 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 50 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 51 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 52 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 53 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 54 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 55 1.1.2.2 bouyer * must display the following acknowledgement: 56 1.1.2.2 bouyer * This product includes software developed by the University of 57 1.1.2.2 bouyer * California, Berkeley and its contributors. 58 1.1.2.2 bouyer * 4. Neither the name of the University nor the names of its contributors 59 1.1.2.2 bouyer * may be used to endorse or promote products derived from this software 60 1.1.2.2 bouyer * without specific prior written permission. 61 1.1.2.2 bouyer * 62 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 1.1.2.2 bouyer * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 1.1.2.2 bouyer * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 1.1.2.2 bouyer * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 1.1.2.2 bouyer * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 1.1.2.2 bouyer * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 1.1.2.2 bouyer * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 1.1.2.2 bouyer * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 1.1.2.2 bouyer * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 1.1.2.2 bouyer * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 1.1.2.2 bouyer * SUCH DAMAGE. 73 1.1.2.2 bouyer * 74 1.1.2.2 bouyer * @(#)fd.c 7.4 (Berkeley) 5/25/91 75 1.1.2.2 bouyer */ 76 1.1.2.2 bouyer #include <sys/param.h> 77 1.1.2.2 bouyer #include <sys/systm.h> 78 1.1.2.2 bouyer #include <sys/callout.h> 79 1.1.2.2 bouyer #include <sys/device.h> 80 1.1.2.2 bouyer 81 1.1.2.2 bouyer #include <machine/bus.h> 82 1.1.2.2 bouyer 83 1.1.2.2 bouyer #include <dev/isa/isavar.h> 84 1.1.2.2 bouyer #include <dev/isa/isadmavar.h> 85 1.1.2.2 bouyer #include <dev/isa/fdreg.h> 86 1.1.2.2 bouyer #include <dev/isa/fdcvar.h> 87 1.1.2.2 bouyer 88 1.1.2.2 bouyer #include <atari/atari/device.h> 89 1.1.2.2 bouyer 90 1.1.2.2 bouyer 91 1.1.2.2 bouyer /* controller driver configuration */ 92 1.1.2.2 bouyer int fdc_isa_probe __P((struct device *, struct cfdata *, void *)); 93 1.1.2.2 bouyer void fdc_isa_attach __P((struct device *, struct device *, void *)); 94 1.1.2.2 bouyer 95 1.1.2.2 bouyer struct fdc_isa_softc { 96 1.1.2.2 bouyer struct fdc_softc sc_fdc; /* base fdc device */ 97 1.1.2.2 bouyer bus_space_handle_t sc_baseioh; /* base I/O handle */ 98 1.1.2.2 bouyer }; 99 1.1.2.2 bouyer 100 1.1.2.2 bouyer struct cfattach fdcisa_ca = { 101 1.1.2.2 bouyer sizeof(struct fdc_isa_softc), fdc_isa_probe, fdc_isa_attach 102 1.1.2.2 bouyer }; 103 1.1.2.2 bouyer 104 1.1.2.2 bouyer int 105 1.1.2.2 bouyer fdc_isa_probe(parent, cfp, aux) 106 1.1.2.2 bouyer struct device *parent; 107 1.1.2.2 bouyer struct cfdata *cfp; 108 1.1.2.2 bouyer void *aux; 109 1.1.2.2 bouyer { 110 1.1.2.2 bouyer struct isa_attach_args *ia = aux; 111 1.1.2.2 bouyer static int fdc_matched = 0; 112 1.1.2.2 bouyer bus_space_tag_t iot; 113 1.1.2.2 bouyer bus_space_handle_t ioh, ctl_ioh, base_ioh; 114 1.1.2.2 bouyer 115 1.1.2.2 bouyer if (!atari_realconfig) 116 1.1.2.2 bouyer return 0; 117 1.1.2.2 bouyer 118 1.1.2.2 bouyer /* Match only once */ 119 1.1.2.2 bouyer if (fdc_matched) 120 1.1.2.2 bouyer return 0; 121 1.1.2.2 bouyer 122 1.1.2.2 bouyer iot = ia->ia_iot; 123 1.1.2.2 bouyer 124 1.1.2.2 bouyer /* 125 1.1.2.2 bouyer * Disallow wildcarded i/o address and drq 126 1.1.2.2 bouyer */ 127 1.1.2.2 bouyer if ((ia->ia_iobase == IOBASEUNK) || (ia->ia_drq == DRQUNK)) 128 1.1.2.2 bouyer return 0; 129 1.1.2.2 bouyer 130 1.1.2.2 bouyer /* Map the i/o space. */ 131 1.1.2.2 bouyer if (bus_space_map(iot, ia->ia_iobase, 6 /* FDC_NPORT */, 0, 132 1.1.2.2 bouyer (caddr_t*)&base_ioh)) { 133 1.1.2.2 bouyer printf("fdcisaprobe: cannot map io-area\n"); 134 1.1.2.2 bouyer return 0; 135 1.1.2.2 bouyer } 136 1.1.2.2 bouyer if (bus_space_subregion(iot, base_ioh, 2, 4, &ioh)) { 137 1.1.2.2 bouyer bus_space_unmap(iot, base_ioh, 6); 138 1.1.2.2 bouyer return (0); 139 1.1.2.2 bouyer } 140 1.1.2.2 bouyer 141 1.1.2.2 bouyer if (bus_space_map(iot, ia->ia_iobase + fdctl + 2, 1, 0, &ctl_ioh)) { 142 1.1.2.2 bouyer bus_space_unmap(iot, base_ioh, 6); 143 1.1.2.2 bouyer return (0); 144 1.1.2.2 bouyer } 145 1.1.2.2 bouyer 146 1.1.2.2 bouyer /* Not needed for the rest of the probe. */ 147 1.1.2.2 bouyer bus_space_unmap(iot, ctl_ioh, 1); 148 1.1.2.2 bouyer 149 1.1.2.2 bouyer /* reset */ 150 1.1.2.2 bouyer bus_space_write_1(iot, ioh, fdout, 0); 151 1.1.2.2 bouyer delay(100); 152 1.1.2.2 bouyer bus_space_write_1(iot, ioh, fdout, FDO_FRST); 153 1.1.2.2 bouyer 154 1.1.2.2 bouyer /* see if it can handle a command */ 155 1.1.2.2 bouyer if (out_fdc(iot, ioh, NE7CMD_SPECIFY) < 0) 156 1.1.2.2 bouyer goto out; 157 1.1.2.2 bouyer out_fdc(iot, ioh, 0xdf); 158 1.1.2.2 bouyer out_fdc(iot, ioh, 2); 159 1.1.2.2 bouyer 160 1.1.2.2 bouyer fdc_matched = 1; 161 1.1.2.2 bouyer ia->ia_iosize = FDC_NPORT; 162 1.1.2.2 bouyer ia->ia_msize = 0; 163 1.1.2.2 bouyer out: 164 1.1.2.2 bouyer bus_space_unmap(iot, base_ioh, 6 /* FDC_NPORT */); 165 1.1.2.2 bouyer 166 1.1.2.2 bouyer return fdc_matched; 167 1.1.2.2 bouyer } 168 1.1.2.2 bouyer 169 1.1.2.2 bouyer void 170 1.1.2.2 bouyer fdc_isa_attach(parent, self, aux) 171 1.1.2.2 bouyer struct device *parent, *self; 172 1.1.2.2 bouyer void *aux; 173 1.1.2.2 bouyer { 174 1.1.2.2 bouyer struct fdc_softc *fdc = (void *)self; 175 1.1.2.2 bouyer struct fdc_isa_softc *isc = (void *)self; 176 1.1.2.2 bouyer struct isa_attach_args *ia = aux; 177 1.1.2.2 bouyer printf("\n"); 178 1.1.2.2 bouyer 179 1.1.2.2 bouyer fdc->sc_iot = ia->ia_iot; 180 1.1.2.2 bouyer fdc->sc_ic = ia->ia_ic; 181 1.1.2.2 bouyer fdc->sc_drq = ia->ia_drq; 182 1.1.2.2 bouyer 183 1.1.2.2 bouyer if (bus_space_map(fdc->sc_iot, ia->ia_iobase, 6 /* FDC_NPORT */, 0, 184 1.1.2.2 bouyer &isc->sc_baseioh)) { 185 1.1.2.2 bouyer printf("%s: unable to map I/O space\n", fdc->sc_dev.dv_xname); 186 1.1.2.2 bouyer return; 187 1.1.2.2 bouyer } 188 1.1.2.2 bouyer 189 1.1.2.2 bouyer if (bus_space_subregion(fdc->sc_iot, isc->sc_baseioh, 2, 4, 190 1.1.2.2 bouyer &fdc->sc_ioh)) { 191 1.1.2.2 bouyer printf("%s: unable to subregion I/O space\n", 192 1.1.2.2 bouyer fdc->sc_dev.dv_xname); 193 1.1.2.2 bouyer return; 194 1.1.2.2 bouyer } 195 1.1.2.2 bouyer 196 1.1.2.2 bouyer if (bus_space_map(fdc->sc_iot, ia->ia_iobase + fdctl + 2, 1, 0, 197 1.1.2.2 bouyer &fdc->sc_fdctlioh)) { 198 1.1.2.2 bouyer printf("%s: unable to map CTL I/O space\n", 199 1.1.2.2 bouyer fdc->sc_dev.dv_xname); 200 1.1.2.2 bouyer return; 201 1.1.2.2 bouyer } 202 1.1.2.2 bouyer 203 1.1.2.2 bouyer fdc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 204 1.1.2.2 bouyer IPL_BIO, fdcintr, fdc); 205 1.1.2.2 bouyer 206 1.1.2.2 bouyer fdcattach(fdc); 207 1.1.2.2 bouyer } 208
Indexes created Fri Oct 17 23:09:53 GMT 2025