mcclock_isa.c revision 1.1.10.3
1 1.1.10.3 nathanw /* $NetBSD: mcclock_isa.c,v 1.1.10.3 2002/02/28 04:07:15 nathanw Exp $ */ 2 1.1.10.2 nathanw /* $OpenBSD: clock_mc.c,v 1.9 1998/03/16 09:38:26 pefo Exp $ */ 3 1.1.10.2 nathanw /* NetBSD: clock_mc.c,v 1.2 1995/06/28 04:30:30 cgd Exp */ 4 1.1.10.2 nathanw 5 1.1.10.2 nathanw /* 6 1.1.10.2 nathanw * Copyright (c) 1988 University of Utah. 7 1.1.10.2 nathanw * Copyright (c) 1992, 1993 8 1.1.10.2 nathanw * The Regents of the University of California. All rights reserved. 9 1.1.10.2 nathanw * 10 1.1.10.2 nathanw * This code is derived from software contributed to Berkeley by 11 1.1.10.2 nathanw * the Systems Programming Group of the University of Utah Computer 12 1.1.10.2 nathanw * Science Department and Ralph Campbell. 13 1.1.10.2 nathanw * 14 1.1.10.2 nathanw * Redistribution and use in source and binary forms, with or without 15 1.1.10.2 nathanw * modification, are permitted provided that the following conditions 16 1.1.10.2 nathanw * are met: 17 1.1.10.2 nathanw * 1. Redistributions of source code must retain the above copyright 18 1.1.10.2 nathanw * notice, this list of conditions and the following disclaimer. 19 1.1.10.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 20 1.1.10.2 nathanw * notice, this list of conditions and the following disclaimer in the 21 1.1.10.2 nathanw * documentation and/or other materials provided with the distribution. 22 1.1.10.2 nathanw * 3. All advertising materials mentioning features or use of this software 23 1.1.10.2 nathanw * must display the following acknowledgement: 24 1.1.10.2 nathanw * This product includes software developed by the University of 25 1.1.10.2 nathanw * California, Berkeley and its contributors. 26 1.1.10.2 nathanw * 4. Neither the name of the University nor the names of its contributors 27 1.1.10.2 nathanw * may be used to endorse or promote products derived from this software 28 1.1.10.2 nathanw * without specific prior written permission. 29 1.1.10.2 nathanw * 30 1.1.10.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 31 1.1.10.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 32 1.1.10.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 33 1.1.10.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 34 1.1.10.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 1.1.10.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 1.1.10.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 1.1.10.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 38 1.1.10.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 1.1.10.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 1.1.10.2 nathanw * SUCH DAMAGE. 41 1.1.10.2 nathanw * 42 1.1.10.2 nathanw * from: Utah Hdr: clock.c 1.18 91/01/21 43 1.1.10.2 nathanw * 44 1.1.10.2 nathanw * @(#)clock.c 8.1 (Berkeley) 6/10/93 45 1.1.10.2 nathanw */ 46 1.1.10.2 nathanw 47 1.1.10.2 nathanw #include <sys/param.h> 48 1.1.10.2 nathanw #include <sys/systm.h> 49 1.1.10.2 nathanw #include <sys/device.h> 50 1.1.10.2 nathanw 51 1.1.10.2 nathanw #include <machine/bus.h> 52 1.1.10.2 nathanw 53 1.1.10.2 nathanw #include <dev/isa/isareg.h> 54 1.1.10.2 nathanw #include <dev/isa/isavar.h> 55 1.1.10.2 nathanw 56 1.1.10.2 nathanw #include <dev/ic/mc146818reg.h> 57 1.1.10.2 nathanw 58 1.1.10.2 nathanw #include <arc/dev/mcclockvar.h> 59 1.1.10.2 nathanw #include <arc/isa/mcclock_isavar.h> 60 1.1.10.2 nathanw 61 1.1.10.2 nathanw int mcclock_isa_match __P((struct device *, struct cfdata *, void *)); 62 1.1.10.2 nathanw void mcclock_isa_attach __P((struct device *, struct device *, void *)); 63 1.1.10.2 nathanw 64 1.1.10.2 nathanw struct cfattach mcclock_isa_ca = { 65 1.1.10.2 nathanw sizeof(struct mcclock_softc), 66 1.1.10.2 nathanw mcclock_isa_match, mcclock_isa_attach 67 1.1.10.2 nathanw }; 68 1.1.10.2 nathanw 69 1.1.10.2 nathanw /* Deskstation clock access code */ 70 1.1.10.2 nathanw u_int mc_isa_read __P((struct mcclock_softc *, u_int)); 71 1.1.10.2 nathanw void mc_isa_write __P((struct mcclock_softc *, u_int, u_int)); 72 1.1.10.2 nathanw 73 1.1.10.2 nathanw struct mcclock_busfns mcclock_isa_busfns = { 74 1.1.10.2 nathanw mc_isa_read, mc_isa_write 75 1.1.10.2 nathanw }; 76 1.1.10.2 nathanw 77 1.1.10.2 nathanw int mcclock_isa_conf = 0; 78 1.1.10.2 nathanw 79 1.1.10.2 nathanw int 80 1.1.10.2 nathanw mcclock_isa_match(parent, match, aux) 81 1.1.10.2 nathanw struct device *parent; 82 1.1.10.2 nathanw struct cfdata *match; 83 1.1.10.2 nathanw void *aux; 84 1.1.10.2 nathanw { 85 1.1.10.2 nathanw struct isa_attach_args *ia = aux; 86 1.1.10.2 nathanw bus_space_handle_t ioh; 87 1.1.10.2 nathanw 88 1.1.10.2 nathanw if (ia->ia_nio < 1 || 89 1.1.10.2 nathanw (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT && 90 1.1.10.2 nathanw ia->ia_io[0].ir_addr != 0x70)) 91 1.1.10.2 nathanw return (0); 92 1.1.10.2 nathanw 93 1.1.10.2 nathanw if (ia->ia_niomem > 0 && 94 1.1.10.2 nathanw (ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT)) 95 1.1.10.2 nathanw return (0); 96 1.1.10.2 nathanw 97 1.1.10.2 nathanw if (ia->ia_nirq > 0 && 98 1.1.10.2 nathanw (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT)) 99 1.1.10.2 nathanw return (0); 100 1.1.10.2 nathanw 101 1.1.10.2 nathanw if (ia->ia_ndrq > 0 && 102 1.1.10.2 nathanw (ia->ia_drq[0].ir_drq != ISACF_DRQ_DEFAULT)) 103 1.1.10.2 nathanw return (0); 104 1.1.10.2 nathanw 105 1.1.10.2 nathanw if (!mcclock_isa_conf) 106 1.1.10.2 nathanw return (0); 107 1.1.10.2 nathanw 108 1.1.10.2 nathanw if (bus_space_map(ia->ia_iot, 0x70, 0x02, 0, &ioh)) 109 1.1.10.2 nathanw return (0); 110 1.1.10.2 nathanw 111 1.1.10.2 nathanw bus_space_unmap(ia->ia_iot, ioh, 0x02); 112 1.1.10.2 nathanw 113 1.1.10.2 nathanw ia->ia_nio = 1; 114 1.1.10.2 nathanw ia->ia_io[0].ir_addr = 0x70; 115 1.1.10.2 nathanw ia->ia_io[0].ir_size = 0x02; 116 1.1.10.2 nathanw 117 1.1.10.2 nathanw ia->ia_niomem = 0; 118 1.1.10.2 nathanw ia->ia_nirq = 0; 119 1.1.10.2 nathanw ia->ia_ndrq = 0; 120 1.1.10.2 nathanw 121 1.1.10.2 nathanw return (1); 122 1.1.10.2 nathanw } 123 1.1.10.2 nathanw 124 1.1.10.2 nathanw void 125 1.1.10.2 nathanw mcclock_isa_attach(parent, self, aux) 126 1.1.10.2 nathanw struct device *parent; 127 1.1.10.2 nathanw struct device *self; 128 1.1.10.2 nathanw void *aux; 129 1.1.10.2 nathanw { 130 1.1.10.2 nathanw struct mcclock_softc *sc = (struct mcclock_softc *)self; 131 1.1.10.2 nathanw struct isa_attach_args *ia = aux; 132 1.1.10.2 nathanw 133 1.1.10.2 nathanw sc->sc_iot = ia->ia_iot; 134 1.1.10.2 nathanw if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 135 1.1.10.2 nathanw ia->ia_io[0].ir_size, 0, &sc->sc_ioh)) 136 1.1.10.2 nathanw panic("mcclock_isa_attach: couldn't map clock I/O space"); 137 1.1.10.2 nathanw 138 1.1.10.2 nathanw mcclock_attach(sc, &mcclock_isa_busfns, 80); 139 1.1.10.2 nathanw 140 1.1.10.2 nathanw /* Turn interrupts off, just in case. */ 141 1.1.10.2 nathanw mc146818_write(sc, MC_REGB, MC_REGB_BINARY | MC_REGB_24HR); 142 1.1.10.2 nathanw } 143 1.1.10.2 nathanw 144 1.1.10.2 nathanw u_int 145 1.1.10.2 nathanw mc_isa_read(sc, reg) 146 1.1.10.2 nathanw struct mcclock_softc *sc; 147 1.1.10.2 nathanw u_int reg; 148 1.1.10.2 nathanw { 149 1.1.10.2 nathanw 150 1.1.10.2 nathanw bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, reg); 151 1.1.10.2 nathanw return (bus_space_read_1(sc->sc_iot, sc->sc_ioh, 1)); 152 1.1.10.2 nathanw } 153 1.1.10.2 nathanw 154 1.1.10.2 nathanw void 155 1.1.10.2 nathanw mc_isa_write(sc, reg, datum) 156 1.1.10.2 nathanw struct mcclock_softc *sc; 157 1.1.10.2 nathanw u_int reg, datum; 158 1.1.10.2 nathanw { 159 1.1.10.2 nathanw 160 1.1.10.2 nathanw bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, reg); 161 1.1.10.2 nathanw bus_space_write_1(sc->sc_iot, sc->sc_ioh, 1, datum); 162 1.1.10.2 nathanw } 163 1.1.10.2 nathanw 164
Indexes created Sat Oct 25 10:09:55 GMT 2025