/* $NetBSD: dtide.c,v 1.25 2008/03/18 20:46:37 cube Exp $ */ /*- * Copyright (c) 2000, 2001 Ben Harris * All rights reserved. * * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ /* * dtide.c - Driver for the D.T. Software IDE interface. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: dtide.c,v 1.25 2008/03/18 20:46:37 cube Exp $"); #include <sys/param.h> #include <sys/device.h> #include <sys/malloc.h> #include <sys/systm.h> #include <sys/bus.h> #include <dev/podulebus/podulebus.h> #include <dev/podulebus/podules.h> #include <dev/podulebus/dtidereg.h> #include <dev/ic/wdcreg.h> #include <dev/ata/atavar.h> #include <dev/ic/wdcvar.h> struct dtide_softc { struct wdc_softc sc_wdc; struct ata_channel *sc_chp[DTIDE_NCHANNELS];/* pointers to sc_chan */ struct ata_channel sc_chan[DTIDE_NCHANNELS]; struct ata_queue sc_chq[DTIDE_NCHANNELS]; struct wdc_regs sc_wdc_regs[DTIDE_NCHANNELS]; bus_space_tag_t sc_magict; bus_space_handle_t sc_magich; }; static int dtide_match(device_t, cfdata_t, void *); static void dtide_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(dtide, sizeof(struct dtide_softc), dtide_match, dtide_attach, NULL, NULL); static const int dtide_cmdoffsets[] = { DTIDE_CMDBASE0, DTIDE_CMDBASE1 }; static const int dtide_ctloffsets[] = { DTIDE_CTLBASE0, DTIDE_CTLBASE1 }; static int dtide_match(device_t parent, cfdata_t cf, void *aux) { struct podulebus_attach_args *pa = aux; return pa->pa_product == PODULE_DTSOFT_IDE; } static void dtide_attach(device_t parent, device_t self, void *aux) { struct podulebus_attach_args *pa = aux; struct dtide_softc *sc = device_private(self); struct wdc_regs *wdr; struct ata_channel *ch; int i, j; bus_space_tag_t bst; sc->sc_wdc.sc_atac.atac_dev = self; sc->sc_wdc.regs = sc->sc_wdc_regs; sc->sc_wdc.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_NOIRQ; sc->sc_wdc.sc_atac.atac_pio_cap = 0; /* XXX correct? */ sc->sc_wdc.sc_atac.atac_nchannels = DTIDE_NCHANNELS; sc->sc_wdc.sc_atac.atac_channels = sc->sc_chp; sc->sc_magict = pa->pa_fast_t; bus_space_map(pa->pa_fast_t, pa->pa_fast_base + DTIDE_MAGICBASE, 0, 1, &sc->sc_magich); podulebus_shift_tag(pa->pa_fast_t, DTIDE_REGSHIFT, &bst); aprint_normal("\n"); for (i = 0; i < DTIDE_NCHANNELS; i++) { ch = sc->sc_chp[i] = &sc->sc_chan[i]; wdr = &sc->sc_wdc_regs[i]; ch->ch_channel = i; ch->ch_atac = &sc->sc_wdc.sc_atac; wdr->cmd_iot = bst; wdr->ctl_iot = bst; ch->ch_queue = &sc->sc_chq[i]; ch->ch_ndrive = 2; bus_space_map(pa->pa_fast_t, pa->pa_fast_base + dtide_cmdoffsets[i], 0, 8, &wdr->cmd_baseioh); for (j = 0; j < WDC_NREG; j++) bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, j, j == 0 ? 4 : 1, &wdr->cmd_iohs[j]); wdc_init_shadow_regs(ch); bus_space_map(pa->pa_fast_t, pa->pa_fast_base + dtide_ctloffsets[i], 0, 8, &wdr->ctl_ioh); wdcattach(ch); } }