diff options
| -rw-r--r-- | sys/dev/isa/files.isapnp | 5 | ||||
| -rw-r--r-- | sys/dev/isa/wdc_isapnp.c | 190 |
2 files changed, 193 insertions, 2 deletions
diff --git a/sys/dev/isa/files.isapnp b/sys/dev/isa/files.isapnp index bf5850b2124..8557614aa8e 100644 --- a/sys/dev/isa/files.isapnp +++ b/sys/dev/isa/files.isapnp @@ -1,4 +1,4 @@ -# $OpenBSD: files.isapnp,v 1.18 1999/07/20 17:03:11 deraadt Exp $ +# $OpenBSD: files.isapnp,v 1.19 1999/07/21 03:50:10 deraadt Exp $ # $NetBSD: files.isapnp,v 1.7 1997/10/16 17:16:36 matt Exp $ # # Config file and device description for machine-independent ISAPnP code. @@ -23,7 +23,8 @@ file dev/isa/mpu_isapnp.c mpu #attach com at isapnp with com_isapnp -attach wdc at isapnp with wdc_isapnp +attach wdc at isapnp with wdc_isapnp: isa_dma +file dev/isa/wdc_isapnp.c wdc_isapnp attach aha at isapnp with aha_isapnp diff --git a/sys/dev/isa/wdc_isapnp.c b/sys/dev/isa/wdc_isapnp.c new file mode 100644 index 00000000000..2663224fa30 --- /dev/null +++ b/sys/dev/isa/wdc_isapnp.c @@ -0,0 +1,190 @@ +/* $NetBSD: wdc_isapnp.c,v 1.13 1999/03/22 10:00:12 mycroft 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/wdcreg.h> +#include <dev/ic/wdcvar.h> + +struct wdc_isapnp_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; +}; + +int wdc_isapnp_match __P((struct device *, void *, void *)); +void wdc_isapnp_attach __P((struct device *, struct device *, void *)); + +struct cfattach wdc_isapnp_ca = { + sizeof(struct wdc_isapnp_softc), wdc_isapnp_match, wdc_isapnp_attach +}; + +#ifdef notyet +static void wdc_isapnp_dma_setup __P((struct wdc_isapnp_softc *)); +static void wdc_isapnp_dma_start __P((void *, void *, size_t, int)); +static void wdc_isapnp_dma_finish __P((void *)); +#endif + +int +wdc_isapnp_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + + return (1); +} + +void +wdc_isapnp_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ + struct wdc_isapnp_softc *sc = (void *)self; + struct isa_attach_args *ipa = aux; + + if (ipa->ipa_nio != 2 || + ipa->ipa_nmem != 0 || + ipa->ipa_nmem32 != 0 || + ipa->ipa_nirq != 1 || + ipa->ipa_ndrq > 1) { + printf(": unexpected configuration\n"); + return; + } + + sc->wdc_channel.cmd_iot = ipa->ia_iot; + sc->wdc_channel.ctl_iot = ipa->ia_iot; + + /* + * An IDE controller can feed us the regions in any order. Pass + * them along with the 8-byte region in sc_ad.ioh, and the other + * (2 byte) region in auxioh. + */ + if (ipa->ipa_io[0].length == 8) { + sc->wdc_channel.cmd_ioh = ipa->ipa_io[0].h; + sc->wdc_channel.ctl_ioh = ipa->ipa_io[1].h; + } else { + sc->wdc_channel.cmd_ioh = ipa->ipa_io[1].h; + sc->wdc_channel.ctl_ioh = ipa->ipa_io[0].h; + } + sc->wdc_channel.data32iot = sc->wdc_channel.cmd_iot; + sc->wdc_channel.data32ioh = sc->wdc_channel.cmd_ioh; + + sc->sc_ic = ipa->ia_ic; + sc->sc_ih = isa_intr_establish(ipa->ia_ic, ipa->ipa_irq[0].num, + ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->wdc_channel, + sc->sc_wdcdev.sc_dev.dv_xname); + +#ifdef notyet + if (ipa->ipa_ndrq > 0) { + sc->sc_drq = ipa->ipa_drq[0].num; + + sc->sc_ad.cap |= WDC_CAPABILITY_DMA; + sc->sc_ad.dma_start = &wdc_isapnp_dma_start; + sc->sc_ad.dma_finish = &wdc_isapnp_dma_finish; + wdc_isapnp_dma_setup(sc); + } +#endif + sc->sc_wdcdev.cap |= WDC_CAPABILITY_DATA16 | 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(": can't allocate memory for command queue\n"); + return; + } + + printf("\n"); + wdcattach(&sc->wdc_channel); +} + +#ifdef notyet +static void +wdc_isapnp_dma_setup(sc) + struct wdc_isapnp_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 void +wdc_isapnp_dma_start(scv, buf, size, read) + void *scv, *buf; + size_t size; + int read; +{ + struct wdc_isapnp_softc *sc = scv; + + isa_dmastart(sc->sc_ic, sc->sc_drq, buf, size, NULL, + (read ? DMAMODE_READ : DMAMODE_WRITE) | DMAMODE_DEMAND, + BUS_DMA_NOWAIT); +} + +static void +wdc_isapnp_dma_finish(scv) + void *scv; +{ + struct wdc_isapnp_softc *sc = scv; + + isa_dmadone(sc->sc_ic, sc->sc_drq); +} +#endif |