/* $NetBSD: wdc_isapnp.c,v 1.31 2004/09/21 02:46:46 thorpej Exp $ */ /*- * Copyright (c) 1998, 2003 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 __KERNEL_RCSID(0, "$NetBSD: wdc_isapnp.c,v 1.31 2004/09/21 02:46:46 thorpej Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct wdc_isapnp_softc { struct wdc_softc sc_wdcdev; struct ata_channel *wdc_chanlist[1]; struct ata_channel ata_channel; struct ata_queue wdc_chqueue; struct wdc_regs wdc_regs; isa_chipset_tag_t sc_ic; void *sc_ih; int sc_drq; }; static int wdc_isapnp_probe(struct device *, struct cfdata *, void *); static void wdc_isapnp_attach(struct device *, struct device *, void *); CFATTACH_DECL(wdc_isapnp, sizeof(struct wdc_isapnp_softc), wdc_isapnp_probe, wdc_isapnp_attach, NULL, NULL); #ifdef notyet static void wdc_isapnp_dma_setup(struct wdc_isapnp_softc *); static void wdc_isapnp_dma_start(void *, void *, size_t, int); static void wdc_isapnp_dma_finish(void *); #endif static int wdc_isapnp_probe(struct device *parent, struct cfdata *match, void *aux) { int pri, variant; pri = isapnp_devmatch(aux, &isapnp_wdc_devinfo, &variant); if (pri && variant > 0) pri = 0; return (pri); } static void wdc_isapnp_attach(struct device *parent, struct device *self, void *aux) { struct wdc_isapnp_softc *sc = (void *)self; struct wdc_regs *wdr; struct isapnp_attach_args *ipa = aux; int i; 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; } if (isapnp_config(ipa->ipa_iot, ipa->ipa_memt, ipa)) { printf(": couldn't map registers\n"); return; } printf(": %s %s\n", ipa->ipa_devident, ipa->ipa_devclass); sc->sc_wdcdev.regs = wdr = &sc->wdc_regs; wdr->cmd_iot = ipa->ipa_iot; wdr->ctl_iot = ipa->ipa_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) { wdr->cmd_baseioh = ipa->ipa_io[0].h; wdr->ctl_ioh = ipa->ipa_io[1].h; } else { wdr->cmd_baseioh = ipa->ipa_io[1].h; wdr->ctl_ioh = ipa->ipa_io[0].h; } for (i = 0; i < WDC_NREG; i++) { if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, i, i == 0 ? 4 : 1, &wdr->cmd_iohs[i]) != 0) { printf(": couldn't subregion registers\n"); return; } } wdr->data32iot = wdr->cmd_iot; wdr->data32ioh = wdr->cmd_iohs[0]; sc->sc_ic = ipa->ipa_ic; sc->sc_ih = isa_intr_establish(ipa->ipa_ic, ipa->ipa_irq[0].num, ipa->ipa_irq[0].type, IPL_BIO, wdcintr, &sc->ata_channel); #ifdef notyet if (ipa->ipa_ndrq > 0) { sc->sc_drq = ipa->ipa_drq[0].num; sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA; sc->sc_wdcdev.dma_start = &wdc_isapnp_dma_start; sc->sc_wdcdev.dma_finish = &wdc_isapnp_dma_finish; wdc_isapnp_dma_setup(sc); } #endif sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32; sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; sc->wdc_chanlist[0] = &sc->ata_channel; sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanlist; sc->sc_wdcdev.sc_atac.atac_nchannels = 1; sc->ata_channel.ch_channel = 0; sc->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac; sc->ata_channel.ch_queue = &sc->wdc_chqueue; wdc_init_shadow_regs(&sc->ata_channel); wdcattach(&sc->ata_channel); } #ifdef notyet static void wdc_isapnp_dma_setup(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.sc_atac.atac_cap &= ~ATAC_CAP_DMA; } } static void wdc_isapnp_dma_start(void *scv, void *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(void *scv) { struct wdc_isapnp_softc *sc = scv; isa_dmadone(sc->sc_ic, sc->sc_drq); } #endif