1 /* $NetBSD: dtide.c,v 1.8 2002/10/02 16:52:23 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2001 Ben Harris 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 /* 30 * dtide.c - Driver for the D.T. Software IDE interface. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: dtide.c,v 1.8 2002/10/02 16:52:23 thorpej Exp $"); 35 36 #include <sys/param.h> 37 38 #include <sys/device.h> 39 #include <sys/malloc.h> 40 #include <sys/systm.h> 41 42 #include <machine/bus.h> 43 44 #include <dev/podulebus/podulebus.h> 45 #include <dev/podulebus/podules.h> 46 #include <dev/podulebus/dtidereg.h> 47 48 #include <dev/ata/atavar.h> 49 #include <dev/ic/wdcvar.h> 50 51 struct dtide_softc { 52 struct wdc_softc sc_wdc; 53 struct channel_softc *sc_chp[DTIDE_NCHANNELS];/* pointers to sc_chan */ 54 struct channel_softc sc_chan[DTIDE_NCHANNELS]; 55 struct channel_queue sc_chq[DTIDE_NCHANNELS]; 56 bus_space_tag_t sc_magict; 57 bus_space_handle_t sc_magich; 58 }; 59 60 static int dtide_match(struct device *, struct cfdata *, void *); 61 static void dtide_attach(struct device *, struct device *, void *); 62 63 CFATTACH_DECL(dtide, sizeof(struct dtide_softc), 64 dtide_match, dtide_attach, NULL, NULL); 65 66 static const int dtide_cmdoffsets[] = { DTIDE_CMDBASE0, DTIDE_CMDBASE1 }; 67 static const int dtide_ctloffsets[] = { DTIDE_CTLBASE0, DTIDE_CTLBASE1 }; 68 69 static int 70 dtide_match(struct device *parent, struct cfdata *cf, void *aux) 71 { 72 struct podulebus_attach_args *pa = aux; 73 74 return pa->pa_product == PODULE_DTSOFT_IDE; 75 } 76 77 static void 78 dtide_attach(struct device *parent, struct device *self, void *aux) 79 { 80 struct podulebus_attach_args *pa = aux; 81 struct dtide_softc *sc = (void *)self; 82 int i; 83 bus_space_tag_t bst; 84 85 sc->sc_wdc.cap = WDC_CAPABILITY_DATA16 | WDC_CAPABILITY_NOIRQ; 86 sc->sc_wdc.PIO_cap = 0; /* XXX correct? */ 87 sc->sc_wdc.DMA_cap = 0; /* XXX correct? */ 88 sc->sc_wdc.UDMA_cap = 0; 89 sc->sc_wdc.nchannels = DTIDE_NCHANNELS; 90 sc->sc_wdc.channels = sc->sc_chp; 91 sc->sc_magict = pa->pa_fast_t; 92 bus_space_map(pa->pa_fast_t, pa->pa_fast_base + DTIDE_MAGICBASE, 0, 1, 93 &sc->sc_magich); 94 podulebus_shift_tag(pa->pa_fast_t, DTIDE_REGSHIFT, &bst); 95 printf("\n"); 96 for (i = 0; i < DTIDE_NCHANNELS; i++) { 97 sc->sc_chp[i] = &sc->sc_chan[i]; 98 sc->sc_chan[i].channel = i; 99 sc->sc_chan[i].wdc = &sc->sc_wdc; 100 sc->sc_chan[i].cmd_iot = bst; 101 sc->sc_chan[i].ctl_iot = bst; 102 sc->sc_chan[i].ch_queue = &sc->sc_chq[i]; 103 bus_space_map(pa->pa_fast_t, 104 pa->pa_fast_base + dtide_cmdoffsets[i], 0, 8, 105 &sc->sc_chan[i].cmd_ioh); 106 bus_space_map(pa->pa_fast_t, 107 pa->pa_fast_base + dtide_ctloffsets[i], 0, 8, 108 &sc->sc_chan[i].ctl_ioh); 109 wdcattach(&sc->sc_chan[i]); 110 } 111 } 112