1 /* $NetBSD: hcide.c,v 1.2 2001/11/13 07:23:15 lukem 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 * hcide.c - Driver for the HCCS 16-bit IDE interface. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: hcide.c,v 1.2 2001/11/13 07:23:15 lukem Exp $"); 35 36 #include <sys/param.h> 37 38 #include <sys/device.h> 39 #include <sys/systm.h> 40 41 #include <machine/bus.h> 42 43 #include <dev/podulebus/podulebus.h> 44 #include <dev/podulebus/podules.h> 45 #include <dev/podulebus/hcidereg.h> 46 47 #include <dev/ata/atavar.h> 48 #include <dev/ic/wdcvar.h> 49 50 struct hcide_softc { 51 struct wdc_softc sc_wdc; 52 struct channel_softc *sc_chp[HCIDE_NCHANNELS];/* pointers to sc_chan */ 53 struct channel_softc sc_chan[HCIDE_NCHANNELS]; 54 struct channel_queue sc_chq[HCIDE_NCHANNELS]; 55 }; 56 57 static void hcide_attach (struct device *, struct device *, void *); 58 static int hcide_match (struct device *, struct cfdata *, void *); 59 60 struct cfattach hcide_ca = { 61 sizeof(struct hcide_softc), hcide_match, hcide_attach 62 }; 63 64 static const int hcide_cmdoffsets[] = { HCIDE_CMD0, HCIDE_CMD1, HCIDE_CMD2 }; 65 static const int hcide_ctloffsets[] = { HCIDE_CTL, HCIDE_CTL, HCIDE_CTL }; 66 67 static int 68 hcide_match(struct device *parent, struct cfdata *cf, void *aux) 69 { 70 struct podulebus_attach_args *pa = aux; 71 72 if (pa->pa_product == PODULE_HCCS_IDESCSI && 73 strncmp(pa->pa_descr, "IDE", 3) == 0) 74 return 1; 75 return 0; 76 } 77 78 static void 79 hcide_attach(struct device *parent, struct device *self, void *aux) 80 { 81 struct hcide_softc *sc = (void *)self; 82 struct podulebus_attach_args *pa = aux; 83 int i; 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 = HCIDE_NCHANNELS; 90 sc->sc_wdc.channels = sc->sc_chp; 91 printf("\n"); 92 for (i = 0; i < HCIDE_NCHANNELS; i++) { 93 sc->sc_chp[i] = &sc->sc_chan[i]; 94 sc->sc_chan[i].channel = i; 95 sc->sc_chan[i].wdc = &sc->sc_wdc; 96 sc->sc_chan[i].cmd_iot = pa->pa_mod_t; 97 sc->sc_chan[i].ctl_iot = pa->pa_mod_t; 98 sc->sc_chan[i].ch_queue = &sc->sc_chq[i]; 99 bus_space_map(pa->pa_fast_t, 100 pa->pa_fast_base + hcide_cmdoffsets[i], 0, 8, 101 &sc->sc_chan[i].cmd_ioh); 102 bus_space_map(pa->pa_fast_t, 103 pa->pa_fast_base + hcide_ctloffsets[i], 0, 8, 104 &sc->sc_chan[i].ctl_ioh); 105 wdcattach(&sc->sc_chan[i]); 106 } 107 } 108