From d9b42dd1fc3137cde3118417c57a3a009fae2d2e Mon Sep 17 00:00:00 2001 From: mhitch Date: Sat, 5 Feb 2000 18:46:28 +0000 Subject: [PATCH] At long last, the MI wdc glue for the Amiga. Tested on my A4000, but not on an A1200 yet. Configuration of wdc/atapi in GENERIC is currently commented out to prevent the suprise of an IDE drive changing from sd0 to wd0 (and the first real SCSI drive changing from sd1/sd1 to sd0). --- sys/arch/amiga/dev/wdc_amiga.c | 154 +++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 sys/arch/amiga/dev/wdc_amiga.c diff --git a/sys/arch/amiga/dev/wdc_amiga.c b/sys/arch/amiga/dev/wdc_amiga.c new file mode 100644 index 000000000000..76acb4ba6ada --- /dev/null +++ b/sys/arch/amiga/dev/wdc_amiga.c @@ -0,0 +1,154 @@ +/* $NetBSD: wdc_amiga.c,v 1.1 2000/02/05 18:46:28 mhitch Exp $ */ + +/*- + * Copyright (c) 2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Michael L. Hitch. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include + +struct wdc_amiga_softc { + struct wdc_softc sc_wdcdev; + struct channel_softc *wdc_chanptr; + struct channel_softc wdc_channel; + struct isr sc_isr; + volatile u_char *sc_intreg; + struct bus_space_tag iot; + char sc_a1200; +}; + +int wdc_amiga_probe __P((struct device *, struct cfdata *, void *)); +void wdc_amiga_attach __P((struct device *, struct device *, void *)); +int wdc_amiga_intr __P((void *)); + +struct cfattach wdc_amiga_ca = { + sizeof(struct wdc_amiga_softc), wdc_amiga_probe, wdc_amiga_attach +}; + +int +wdc_amiga_probe(parent, cfp, aux) + struct device *parent; + struct cfdata *cfp; + void *aux; +{ + if (!(is_a4000() && !is_a1200()) || !matchname(aux, "wdc")) + return(0); + return 1; +} + +void +wdc_amiga_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct wdc_amiga_softc *sc = (void *)self; + + printf("\n"); + + if (is_a4000()) { + sc->iot.base = (u_long)ztwomap(0xdd2020 + 2); + sc->sc_intreg = (u_char *)ztwomap(0xdd2020 + 0x1000); + } else { + sc->iot.base = (u_long)ztwomap(0xda0000 + 2); + sc->sc_a1200 = 1; + sc->sc_intreg = &gayle.intreq; + gayle_init(); + gayle.intena |= GAYLE_INT_IDE; + } + sc->iot.absm = &amiga_bus_stride_4swap; + sc->wdc_channel.cmd_iot = sc->wdc_channel.ctl_iot = &sc->iot; + if (bus_space_map(sc->wdc_channel.cmd_iot, 0, 0x40, 0, + &sc->wdc_channel.cmd_ioh)) { + printf("%s: couldn't map registers\n", + sc->sc_wdcdev.sc_dev.dv_xname); + return; + } + if (bus_space_subregion(sc->wdc_channel.cmd_iot, + sc->wdc_channel.cmd_ioh, 0x406, 1, &sc->wdc_channel.ctl_ioh)) + return; + + sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16; + sc->sc_wdcdev.PIO_cap = 0; + sc->wdc_chanptr = &sc->wdc_channel; + sc->sc_wdcdev.channels = &sc->wdc_chanptr; + sc->sc_wdcdev.nchannels = 1; + sc->wdc_channel.channel = 0; + sc->wdc_channel.wdc = &sc->sc_wdcdev; + sc->wdc_channel.ch_queue = malloc(sizeof(struct channel_queue), + M_DEVBUF, M_NOWAIT); + if (sc->wdc_channel.ch_queue == NULL) { + printf("%s: can't allocate memory for command queue", + sc->sc_wdcdev.sc_dev.dv_xname); + return; + } + sc->sc_isr.isr_intr = wdc_amiga_intr; + sc->sc_isr.isr_arg = sc; + sc->sc_isr.isr_ipl = 2; + add_isr (&sc->sc_isr); + + wdcattach(&sc->wdc_channel); + +} + +int +wdc_amiga_intr(arg) + void *arg; +{ + struct wdc_amiga_softc *sc = (struct wdc_amiga_softc *)arg; + + if ((*sc->sc_intreg & 0x80) == 0) + return 0; + wdcintr(&sc->wdc_channel); + if (sc->sc_a1200) + *sc->sc_intreg = 0x7c | (*sc->sc_intreg & 0x03); + return(1); +}