252 lines
7.0 KiB
C
252 lines
7.0 KiB
C
/* $NetBSD: wdc_obio.c,v 1.22 2006/10/05 09:34:52 tsutsui Exp $ */
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/*
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* Copyright (c) 2002 Takeshi Shibagaki All rights reserved.
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*
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* mac68k OBIO-IDE attachment created by Takeshi Shibagaki
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: wdc_obio.c,v 1.22 2006/10/05 09:34:52 tsutsui Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <machine/cpu.h>
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#include <machine/viareg.h>
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#include <mac68k/obio/obiovar.h>
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#include <dev/ata/atavar.h>
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#include <dev/ic/wdcvar.h>
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#define WDC_OBIO_REG_NPORTS 0x40
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#define WDC_OBIO_AUXREG_OFFSET 0x38
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#define WDC_OBIO_AUXREG_NPORTS 1
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#define WDC_OBIO_ISR_OFFSET 0x101
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#define WDC_OBIO_ISR_NPORTS 1
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static u_long IDEBase = 0x50f1a000;
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/*
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* XXX This code currently doesn't even try to allow 32-bit data port use.
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*/
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struct wdc_obio_softc {
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struct wdc_softc sc_wdcdev;
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struct ata_channel *sc_chanlist[1];
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struct ata_channel sc_channel;
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struct ata_queue sc_chqueue;
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struct wdc_regs sc_wdc_regs;
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void *sc_ih;
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};
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int wdc_obio_match(struct device *, struct cfdata *, void *);
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void wdc_obio_attach(struct device *, struct device *, void *);
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void wdc_obio_intr(void *);
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CFATTACH_DECL(wdc_obio, sizeof(struct wdc_obio_softc),
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wdc_obio_match, wdc_obio_attach, NULL, NULL);
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static bus_space_tag_t wdc_obio_isr_tag;
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static bus_space_handle_t wdc_obio_isr_hdl;
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static struct ata_channel *ch_sc;
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int
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wdc_obio_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct obio_attach_args *oa = (struct obio_attach_args *) aux;
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struct ata_channel ch;
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struct wdc_softc wdc;
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struct wdc_regs wdr;
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static int wdc_matched = 0;
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int i, result = 0;
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memset(&wdc, 0, sizeof(wdc));
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memset(&ch, 0, sizeof(ch));
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ch.ch_atac = &wdc.sc_atac;
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wdc.regs = &wdr;
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switch (current_mac_model->machineid) {
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case MACH_MACPB150:
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case MACH_MACPB190:
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case MACH_MACPB190CS:
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case MACH_MACP580:
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case MACH_MACQ630:
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wdr.cmd_iot = wdr.ctl_iot = oa->oa_tag;
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if (bus_space_map(wdr.cmd_iot, IDEBase, WDC_OBIO_REG_NPORTS,
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0, &wdr.cmd_baseioh))
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return 0;
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mac68k_bus_space_handle_swapped(wdr.cmd_iot, &wdr.cmd_baseioh);
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for (i = 0; i < WDC_NREG; i++) {
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if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh,
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4 * i, 4, &wdr.cmd_iohs[i]) != 0) {
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return 0;
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}
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}
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wdc_init_shadow_regs(&ch);
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if (bus_space_subregion(wdr.cmd_iot, wdr.cmd_baseioh,
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WDC_OBIO_AUXREG_OFFSET,
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WDC_OBIO_AUXREG_NPORTS,
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&wdr.ctl_ioh))
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return 0;
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result = wdcprobe(&ch);
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bus_space_unmap(wdr.cmd_iot, wdr.cmd_baseioh, WDC_OBIO_REG_NPORTS);
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if (result)
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wdc_matched = 1;
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return (result);
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}
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return 0;
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}
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void
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wdc_obio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct wdc_obio_softc *sc = (void *)self;
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struct wdc_regs *wdr;
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struct obio_attach_args *oa = aux;
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struct ata_channel *chp = &sc->sc_channel;
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int i;
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sc->sc_wdcdev.regs = wdr = &sc->sc_wdc_regs;
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oa->oa_addr = IDEBase;
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wdr->cmd_iot = wdr->ctl_iot = oa->oa_tag;
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if (bus_space_map(wdr->cmd_iot, oa->oa_addr,
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WDC_OBIO_REG_NPORTS, 0, &wdr->cmd_baseioh)) {
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printf("%s: couldn't map registers\n",
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sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
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return;
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}
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mac68k_bus_space_handle_swapped(wdr->cmd_iot,
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&wdr->cmd_baseioh);
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for (i = 0; i < WDC_NREG; i++) {
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if (bus_space_subregion(wdr->cmd_iot,
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wdr->cmd_baseioh, 4 * i, 4,
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&wdr->cmd_iohs[i]) != 0) {
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printf("%s: unable to subregion control register\n",
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sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
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return;
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}
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}
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if (bus_space_subregion(wdr->cmd_iot,
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wdr->cmd_baseioh,
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WDC_OBIO_AUXREG_OFFSET, WDC_OBIO_AUXREG_NPORTS,
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&wdr->ctl_ioh)) {
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printf("%s: unable to subregion aux register\n",
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sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
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return;
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}
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wdc_obio_isr_tag = oa->oa_tag;
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if (bus_space_map(wdc_obio_isr_tag,
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oa->oa_addr+WDC_OBIO_ISR_OFFSET,
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WDC_OBIO_ISR_NPORTS, 0, &wdc_obio_isr_hdl)) {
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printf("%s: couldn't map intr status register\n",
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sc->sc_wdcdev.sc_atac.atac_dev.dv_xname);
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return;
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}
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switch (current_mac_model->machineid) {
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case MACH_MACP580:
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case MACH_MACQ630:
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/*
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* Quadra/Performa IDE generates pseudo Nubus intr at slot F
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*/
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printf(" (Quadra/Performa series IDE interface)");
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add_nubus_intr(0xf, (void (*)(void*))wdc_obio_intr, (void *)sc);
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break;
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case MACH_MACPB150:
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case MACH_MACPB190:
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case MACH_MACPB190CS:
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/*
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* PowerBook IDE generates pseudo NuBus intr at slot C
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*/
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printf(" (PowerBook series IDE interface)");
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add_nubus_intr(0xc, (void (*)(void*))wdc_obio_intr, (void *)sc);
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break;
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}
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ch_sc = chp;
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if (device_cfdata(&sc->sc_wdcdev.sc_atac.atac_dev)->cf_flags &
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ATAC_CAP_NOIRQ)
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sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_NOIRQ;
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sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16;
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sc->sc_wdcdev.sc_atac.atac_pio_cap = 0;
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sc->sc_chanlist[0] = chp;
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sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist;
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sc->sc_wdcdev.sc_atac.atac_nchannels = 1;
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chp->ch_channel = 0;
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chp->ch_atac = &sc->sc_wdcdev.sc_atac;
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chp->ch_queue = &sc->sc_chqueue;
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chp->ch_ndrive = 2;
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wdc_init_shadow_regs(chp);
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printf("\n");
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wdcattach(chp);
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}
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void
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wdc_obio_intr(void *arg)
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{
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unsigned char status;
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status = bus_space_read_1(wdc_obio_isr_tag,
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wdc_obio_isr_hdl, 0);
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if (status & 0x20) {
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wdcintr(ch_sc);
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bus_space_write_1(wdc_obio_isr_tag,
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wdc_obio_isr_hdl, 0, status&~0x20);
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}
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}
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