Import of NetBSD ATA/IDE stuff.

Introduction of home-grown

To enable this stuff in your configuration, look at the NEWATA conf file
and go through

dev/isa/files.isa
dev/pci/files.pci
conf/files
arch/i386/conf/files.i386

and follow the instructions on commenting/uncommenting stuff

1 files changed, 235 insertions, 0 deletions

diff --git a/sys/dev/isa/wdc_isa.c b/sys/dev/isa/wdc_isa.c
new file mode 100644
index 00000000000..ae8a28842d0
--- /dev/null
+++ b/sys/dev/isa/wdc_isa.c
@@ -0,0 +1,235 @@
+/*      $OpenBSD: wdc_isa.c,v 1.1 1999/07/18 21:25:18 csapuntz Exp $     */
+/*	$NetBSD: wdc_isa.c,v 1.15 1999/05/19 14:41:25 bouyer Exp $ */
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum and by Onno van der Linden.
+ *
+ * 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 <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/isa/isavar.h>
+#include <dev/isa/isadmavar.h>
+
+#include <dev/ata/atavar.h>
+#include <dev/ic/wdcvar.h>
+
+#define	WDC_ISA_REG_NPORTS	8
+#define	WDC_ISA_AUXREG_OFFSET	0x206
+#define	WDC_ISA_AUXREG_NPORTS	1 /* XXX "fdc" owns ports 0x3f7/0x377 */
+
+/* options passed via the 'flags' config keyword */
+#define WDC_OPTIONS_32	0x01 /* try to use 32bit data I/O */
+
+struct wdc_isa_softc {
+	struct	wdc_softc sc_wdcdev;
+	struct	channel_softc *wdc_chanptr;
+	struct	channel_softc wdc_channel;
+	isa_chipset_tag_t sc_ic;
+	void	*sc_ih;
+	int	sc_drq;
+};
+
+#ifndef __OpenBSD__
+int	wdc_isa_probe	__P((struct device *, struct cfdata *, void *));
+#else
+int	wdc_isa_probe	__P((struct device *, void *, void *));
+#endif
+void	wdc_isa_attach	__P((struct device *, struct device *, void *));
+
+struct cfattach wdc_isa_ca = {
+	sizeof(struct wdc_isa_softc), wdc_isa_probe, wdc_isa_attach
+};
+
+static void	wdc_isa_dma_setup __P((struct wdc_isa_softc *));
+static int	wdc_isa_dma_init __P((void*, int, int, void *, size_t, int));
+static void 	wdc_isa_dma_start __P((void*, int, int, int));
+static int	wdc_isa_dma_finish __P((void*, int, int, int));
+
+int
+wdc_isa_probe(parent, match, aux)
+	struct device *parent;
+#ifndef __OpenBSD__
+	struct cfdata *match;
+#else
+	void *match;
+#endif
+	void *aux;
+{
+	struct channel_softc ch = { 0 };
+	struct isa_attach_args *ia = aux;
+	int result = 0;
+
+	ch.cmd_iot = ia->ia_iot;
+	if (bus_space_map(ch.cmd_iot, ia->ia_iobase, WDC_ISA_REG_NPORTS, 0,
+	    &ch.cmd_ioh))
+		goto out;
+
+	ch.ctl_iot = ia->ia_iot;
+	if (bus_space_map(ch.ctl_iot, ia->ia_iobase + WDC_ISA_AUXREG_OFFSET,
+	    WDC_ISA_AUXREG_NPORTS, 0, &ch.ctl_ioh))
+		goto outunmap;
+
+	result = wdcprobe(&ch);
+	if (result) {
+		ia->ia_iosize = WDC_ISA_REG_NPORTS;
+		ia->ia_msize = 0;
+	}
+
+	bus_space_unmap(ch.ctl_iot, ch.ctl_ioh, WDC_ISA_AUXREG_NPORTS);
+outunmap:
+	bus_space_unmap(ch.cmd_iot, ch.cmd_ioh, WDC_ISA_REG_NPORTS);
+out:
+	return (result);
+}
+
+void
+wdc_isa_attach(parent, self, aux)
+	struct device *parent, *self;
+	void *aux;
+{
+	struct wdc_isa_softc *sc = (void *)self;
+	struct isa_attach_args *ia = aux;
+
+	printf("\n");
+
+	sc->wdc_channel.cmd_iot = ia->ia_iot;
+	sc->wdc_channel.ctl_iot = ia->ia_iot;
+	sc->sc_ic = ia->ia_ic;
+	if (bus_space_map(sc->wdc_channel.cmd_iot, ia->ia_iobase,
+	    WDC_ISA_REG_NPORTS, 0, &sc->wdc_channel.cmd_ioh) ||
+	    bus_space_map(sc->wdc_channel.ctl_iot,
+	      ia->ia_iobase + WDC_ISA_AUXREG_OFFSET, WDC_ISA_AUXREG_NPORTS,
+	      0, &sc->wdc_channel.ctl_ioh)) {
+		printf("%s: couldn't map registers\n",
+		    sc->sc_wdcdev.sc_dev.dv_xname);
+	}
+	sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot;
+	sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh;
+
+#ifdef __OpenBSD__
+	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
+	    IPL_BIO, wdcintr, &sc->wdc_channel, sc->sc_wdcdev.sc_dev.dv_xname);
+#else
+	sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
+	    IPL_BIO, wdcintr, &sc->wdc_channel);
+#endif
+	if (ia->ia_drq != DRQUNK) {
+		sc->sc_drq = ia->ia_drq;
+
+		sc->sc_wdcdev.cap |= WDC_CAPABILITY_DMA;
+		sc->sc_wdcdev.dma_arg = sc;
+		sc->sc_wdcdev.dma_init = wdc_isa_dma_init;
+		sc->sc_wdcdev.dma_start = wdc_isa_dma_start;
+		sc->sc_wdcdev.dma_finish = wdc_isa_dma_finish;
+		wdc_isa_dma_setup(sc);
+	}
+	sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_PREATA;
+	if (sc->sc_wdcdev.sc_dev.dv_cfdata->cf_flags & WDC_OPTIONS_32)
+		sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA32;
+	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;
+	}
+	wdcattach(&sc->wdc_channel);
+	wdc_final_attach(&sc->wdc_channel);
+}
+
+static void
+wdc_isa_dma_setup(sc)
+	struct wdc_isa_softc *sc;
+{
+	if (isa_dmamap_create(sc->sc_ic, sc->sc_drq,
+	    MAXPHYS, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) {
+		printf("%s: can't create map for drq %d\n",
+		    sc->sc_wdcdev.sc_dev.dv_xname, sc->sc_drq);
+		sc->sc_wdcdev.cap &= ~WDC_CAPABILITY_DMA;
+	}
+}
+
+static int
+wdc_isa_dma_init(v, channel, drive, databuf, datalen, read)
+	void *v;
+	void *databuf;
+	size_t datalen;
+	int read;
+{
+	struct wdc_isa_softc *sc = v;
+
+	isa_dmastart(sc->sc_ic, sc->sc_drq, databuf, datalen, NULL,
+	    (read ? DMAMODE_READ : DMAMODE_WRITE)
+#ifndef __OpenBSD__
+| DMAMODE_DEMAND,
+#else 
+,
+#endif
+	    BUS_DMA_NOWAIT);
+	return 0;
+}
+
+static void
+wdc_isa_dma_start(v, channel, drive, read)
+	void *v;
+	int channel, drive;
+{
+	/* nothing to do */
+}
+
+static int
+wdc_isa_dma_finish(v, channel, drive, read)
+	void *v;
+	int channel, drive;
+	int read;
+{
+	struct wdc_isa_softc *sc = v;
+
+	isa_dmadone(sc->sc_ic, sc->sc_drq);
+	return 0;
+}