1/* $NetBSD: hcide.c,v 1.21 2007/10/19 12:01:07 ad 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 1.21 2007/10/19 12:01:07 ad Exp $"); 35 36#include <sys/param.h> 37 38#include <sys/device.h> 39#include <sys/systm.h> 40 41#include <sys/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/wdcreg.h> 49#include <dev/ic/wdcvar.h> 50 51struct hcide_softc { 52 struct wdc_softc sc_wdc; 53 struct ata_channel *sc_chp[HCIDE_NCHANNELS];/* pointers to sc_chan */ 54 struct ata_channel sc_chan[HCIDE_NCHANNELS]; 55 struct ata_queue sc_chq[HCIDE_NCHANNELS]; 56 struct wdc_regs sc_wdc_regs[HCIDE_NCHANNELS]; 57}; 58 59static int hcide_match (device_t, cfdata_t, void *); 60static void hcide_attach (device_t, device_t, void *); 61 62CFATTACH_DECL_NEW(hcide, sizeof(struct hcide_softc), 63 hcide_match, hcide_attach, NULL, NULL); 64 65static const int hcide_cmdoffsets[] = { HCIDE_CMD0, HCIDE_CMD1, HCIDE_CMD2 }; 66static const int hcide_ctloffsets[] = { HCIDE_CTL, HCIDE_CTL, HCIDE_CTL }; 67 68static int 69hcide_match(device_t parent, cfdata_t cf, void *aux) 70{ 71 struct podulebus_attach_args *pa = aux; 72 73 if (pa->pa_product == PODULE_HCCS_IDESCSI && 74 strncmp(pa->pa_descr, "IDE", 3) == 0) 75 return 1; 76 return 0; 77} 78 79static void 80hcide_attach(device_t parent, device_t self, void *aux) 81{ 82 struct hcide_softc *sc = device_private(self); 83 struct wdc_regs *wdr; 84 struct podulebus_attach_args *pa = aux; 85 struct ata_channel *ch; 86 int i, j; 87 88 sc->sc_wdc.sc_atac.atac_dev = self; 89 sc->sc_wdc.regs = sc->sc_wdc_regs; 90 91 sc->sc_wdc.sc_atac.atac_cap = ATAC_CAP_DATA16 | ATAC_CAP_NOIRQ; 92 sc->sc_wdc.sc_atac.atac_pio_cap = 0; /* XXX correct? */ 93 sc->sc_wdc.sc_atac.atac_nchannels = HCIDE_NCHANNELS; 94 sc->sc_wdc.sc_atac.atac_channels = sc->sc_chp; 95 aprint_normal("\n"); 96 for (i = 0; i < HCIDE_NCHANNELS; i++) { 97 ch = sc->sc_chp[i] = &sc->sc_chan[i]; 98 wdr = &sc->sc_wdc_regs[i]; 99 ch->ch_channel = i; 100 ch->ch_atac = &sc->sc_wdc.sc_atac; 101 wdr->cmd_iot = pa->pa_mod_t; 102 wdr->ctl_iot = pa->pa_mod_t; 103 ch->ch_queue = &sc->sc_chq[i]; 104 ch->ch_ndrive = 2; 105 bus_space_map(pa->pa_fast_t, 106 pa->pa_fast_base + hcide_cmdoffsets[i], 0, 8, 107 &wdr->cmd_baseioh); 108 for (j = 0; j < WDC_NREG; j++) 109 bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh, 110 j, j == 0 ? 4 : 1, &wdr->cmd_iohs[j]); 111 wdc_init_shadow_regs(ch); 112 bus_space_map(pa->pa_fast_t, 113 pa->pa_fast_base + hcide_ctloffsets[i], 0, 8, 114 &wdr->ctl_ioh); 115 wdcattach(ch); 116 } 117} 118