1 /* $NetBSD: wdc_pnpbus.c,v 1.15 2017/10/20 07:06:07 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Onno van der Linden. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: wdc_pnpbus.c,v 1.15 2017/10/20 07:06:07 jdolecek Exp $"); 34 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/device.h> 39 #include <sys/malloc.h> 40 41 #include <sys/bus.h> 42 #include <machine/intr.h> 43 #include <machine/isa_machdep.h> 44 #include <machine/residual.h> 45 46 #include <dev/ata/atavar.h> 47 #include <dev/ic/wdcvar.h> 48 49 #include <prep/pnpbus/pnpbusvar.h> 50 51 /* options passed via the 'flags' config keyword */ 52 #define WDC_OPTIONS_32 0x01 /* try to use 32bit data I/O */ 53 54 struct wdc_pnpbus_softc { 55 struct wdc_softc sc_wdcdev; 56 struct ata_channel *sc_chanlist[1]; 57 struct ata_channel sc_channel; 58 struct wdc_regs sc_wdc_regs; 59 void *sc_ih; 60 }; 61 62 static int wdc_pnpbus_probe(device_t, cfdata_t, void *); 63 static void wdc_pnpbus_attach(device_t, device_t, void *); 64 65 CFATTACH_DECL_NEW(wdc_pnpbus, sizeof(struct wdc_pnpbus_softc), 66 wdc_pnpbus_probe, wdc_pnpbus_attach, NULL, NULL); 67 68 static int 69 wdc_pnpbus_probe(device_t parent, cfdata_t match, void *aux) 70 { 71 struct pnpbus_dev_attach_args *pna = aux; 72 int ret = 0; 73 74 /* XXX special case the Powerstack E1, it has wdc builtin on 14E 75 * while the siop is builtin on 14L. No idea how this works at all. 76 */ 77 if (strcmp(res->VitalProductData.PrintableModel, "(e1)") == 0) 78 return ret; 79 80 /* XXX special case the MTX604/mcp750. The onboard IDE is actually 81 * a PCIIDE chip. 82 */ 83 84 if (strcmp(res->VitalProductData.PrintableModel, 85 "000000000000000000000000000(e2)") == 0) 86 return ret; 87 88 if (strcmp(pna->pna_devid, "PNP0600") == 0) 89 ret = 1; 90 91 if (ret) 92 pnpbus_scan(pna, pna->pna_ppc_dev); 93 94 return ret; 95 } 96 97 static void 98 wdc_pnpbus_attach(device_t parent, device_t self, void *aux) 99 { 100 struct wdc_pnpbus_softc *sc = device_private(self); 101 struct wdc_regs *wdr; 102 struct pnpbus_dev_attach_args *pna = aux; 103 int cmd_iobase, cmd_len, aux_iobase, aux_len, i; 104 105 sc->sc_wdcdev.sc_atac.atac_dev = self; 106 sc->sc_wdcdev.regs = wdr = &sc->sc_wdc_regs; 107 108 wdr->cmd_iot = pna->pna_iot; 109 wdr->ctl_iot = pna->pna_iot; 110 pnpbus_getioport(&pna->pna_res, 0, &cmd_iobase, &cmd_len); 111 pnpbus_getioport(&pna->pna_res, 1, &aux_iobase, &aux_len); 112 113 if (pnpbus_io_map(&pna->pna_res, 0, &wdr->cmd_iot, &wdr->cmd_baseioh) || 114 pnpbus_io_map(&pna->pna_res, 1, &wdr->ctl_iot, &wdr->ctl_ioh)) { 115 aprint_error_dev(self, "couldn't map registers\n"); 116 } 117 118 for (i = 0; i < cmd_len; i++) { 119 if (bus_space_subregion(wdr->cmd_iot, 120 wdr->cmd_baseioh, i, i == 0 ? 4 : 1, 121 &wdr->cmd_iohs[i]) != 0) { 122 aprint_error(": couldn't subregion registers\n"); 123 return; 124 } 125 } 126 127 wdr->data32iot = wdr->cmd_iot; 128 wdr->data32ioh = wdr->cmd_iohs[0]; 129 130 sc->sc_wdcdev.cap |= WDC_CAPABILITY_PREATA; 131 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16; 132 if (device_cfdata(sc->sc_wdcdev.sc_atac.atac_dev)->cf_flags & 133 WDC_OPTIONS_32) 134 sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA32; 135 136 sc->sc_wdcdev.sc_atac.atac_pio_cap = 0; 137 sc->sc_chanlist[0] = &sc->sc_channel; 138 sc->sc_wdcdev.sc_atac.atac_channels = sc->sc_chanlist; 139 sc->sc_wdcdev.sc_atac.atac_nchannels = 1; 140 sc->sc_wdcdev.wdc_maxdrives = 2; 141 sc->sc_channel.ch_channel = 0; 142 sc->sc_channel.ch_atac = &sc->sc_wdcdev.sc_atac; 143 144 wdc_init_shadow_regs(wdr); 145 146 sc->sc_ih = pnpbus_intr_establish(0, IPL_BIO, IST_PNP, 147 wdcintr, &sc->sc_channel, &pna->pna_res); 148 149 aprint_normal("\n"); 150 wdcattach(&sc->sc_channel); 151 } 152