wdc_amiga.c revision 1.4
1 /* $NetBSD: wdc_amiga.c,v 1.4 2000/02/19 17:16:20 aymeric Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Michael L. Hitch. 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 #include <sys/types.h> 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/malloc.h> 43 #include <sys/device.h> 44 45 #include <machine/cpu.h> 46 #include <machine/bus.h> 47 #include <machine/intr.h> 48 #include <machine/bswap.h> 49 50 #include <amiga/amiga/cia.h> 51 #include <amiga/amiga/custom.h> 52 #include <amiga/amiga/device.h> 53 #include <amiga/amiga/gayle.h> 54 #include <amiga/dev/zbusvar.h> 55 56 #include <dev/ata/atavar.h> 57 #include <dev/ic/wdcvar.h> 58 59 struct wdc_amiga_softc { 60 struct wdc_softc sc_wdcdev; 61 struct channel_softc *wdc_chanptr; 62 struct channel_softc wdc_channel; 63 struct isr sc_isr; 64 volatile u_char *sc_intreg; 65 struct bus_space_tag cmd_iot; 66 struct bus_space_tag ctl_iot; 67 char sc_a1200; 68 }; 69 70 int wdc_amiga_probe __P((struct device *, struct cfdata *, void *)); 71 void wdc_amiga_attach __P((struct device *, struct device *, void *)); 72 int wdc_amiga_intr __P((void *)); 73 74 struct cfattach wdc_amiga_ca = { 75 sizeof(struct wdc_amiga_softc), wdc_amiga_probe, wdc_amiga_attach 76 }; 77 78 int 79 wdc_amiga_probe(parent, cfp, aux) 80 struct device *parent; 81 struct cfdata *cfp; 82 void *aux; 83 { 84 if ((!is_a4000() && !is_a1200()) || !matchname(aux, "wdc")) 85 return(0); 86 return 1; 87 } 88 89 void 90 wdc_amiga_attach(parent, self, aux) 91 struct device *parent, *self; 92 void *aux; 93 { 94 struct wdc_amiga_softc *sc = (void *)self; 95 96 printf("\n"); 97 98 if (is_a4000()) { 99 sc->cmd_iot.base = (u_long)ztwomap(0xdd2020 + 2); 100 sc->sc_intreg = (u_char *)ztwomap(0xdd2020 + 0x1000); 101 sc->sc_a1200 = 0; 102 } else { 103 sc->cmd_iot.base = (u_long) ztwomap(0xda0000 + 2); 104 sc->ctl_iot.base = (u_long) ztwomap(0xda4000); 105 gayle_init(); 106 sc->sc_intreg = &gayle.intreq; 107 sc->sc_a1200 = 1; 108 } 109 sc->cmd_iot.absm = sc->ctl_iot.absm = &amiga_bus_stride_4swap; 110 sc->wdc_channel.cmd_iot = &sc->cmd_iot; 111 sc->wdc_channel.ctl_iot = &sc->ctl_iot; 112 113 if (bus_space_map(sc->wdc_channel.cmd_iot, 0, 0x40, 0, 114 &sc->wdc_channel.cmd_ioh)) { 115 printf("%s: couldn't map registers\n", 116 sc->sc_wdcdev.sc_dev.dv_xname); 117 return; 118 } 119 120 if (is_a1200()) 121 sc->wdc_channel.ctl_ioh = sc->ctl_iot.base; 122 else if (bus_space_subregion(sc->wdc_channel.cmd_iot, 123 sc->wdc_channel.cmd_ioh, 0x406, 1, &sc->wdc_channel.ctl_ioh)) 124 return; 125 126 sc->sc_wdcdev.cap = WDC_CAPABILITY_DATA16; 127 sc->sc_wdcdev.PIO_cap = 0; 128 sc->wdc_chanptr = &sc->wdc_channel; 129 sc->sc_wdcdev.channels = &sc->wdc_chanptr; 130 sc->sc_wdcdev.nchannels = 1; 131 sc->wdc_channel.channel = 0; 132 sc->wdc_channel.wdc = &sc->sc_wdcdev; 133 sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue), 134 M_DEVBUF, M_NOWAIT); 135 if (sc->wdc_channel.ch_queue == NULL) { 136 printf("%s: can't allocate memory for command queue", 137 sc->sc_wdcdev.sc_dev.dv_xname); 138 return; 139 } 140 sc->sc_isr.isr_intr = wdc_amiga_intr; 141 sc->sc_isr.isr_arg = sc; 142 sc->sc_isr.isr_ipl = 2; 143 add_isr (&sc->sc_isr); 144 145 if (is_a1200()) 146 gayle.intena |= GAYLE_INT_IREQ | GAYLE_INT_IDE; 147 148 wdcattach(&sc->wdc_channel); 149 } 150 151 int 152 wdc_amiga_intr(arg) 153 void *arg; 154 { 155 struct wdc_amiga_softc *sc = (struct wdc_amiga_softc *)arg; 156 u_char intreq = *sc->sc_intreg; 157 int ret = 0; 158 159 if (intreq & GAYLE_INT_IDE) { 160 if (sc->sc_a1200) 161 gayle.intreq = 0x7c | (intreq & 0x03); 162 ret = wdcintr(&sc->wdc_channel); 163 } 164 165 return ret; 166 } 167
Indexes created Fri Sep 26 08:10:20 GMT 2025