1 /* $NetBSD: gio.c,v 1.2 2002/03/13 13:12:27 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Soren S. Jorvang 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the 18 * NetBSD Project. See http://www.netbsd.org/ for 19 * information about NetBSD. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include "opt_ddb.h" 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/device.h> 40 41 #include <sgimips/gio/gioreg.h> 42 #include <sgimips/gio/giovar.h> 43 44 #include "locators.h" 45 46 struct gio_softc { 47 struct device sc_dev; 48 }; 49 50 static int gio_match(struct device *, struct cfdata *, void *); 51 static void gio_attach(struct device *, struct device *, void *); 52 static int gio_print(void *, const char *); 53 static int gio_search(struct device *, struct cfdata *, void *); 54 55 struct cfattach gio_ca = { 56 sizeof(struct gio_softc), gio_match, gio_attach 57 }; 58 59 static int 60 gio_match(parent, match, aux) 61 struct device *parent; 62 struct cfdata *match; 63 void *aux; 64 { 65 struct giobus_attach_args *gba = aux; 66 67 if (strcmp(gba->gba_busname, match->cf_driver->cd_name) != 0) 68 return 0; 69 70 return 1; 71 } 72 73 static void 74 gio_attach(parent, self, aux) 75 struct device *parent; 76 struct device *self; 77 void *aux; 78 { 79 struct gio_attach_args ga; 80 81 printf("\n"); 82 83 config_search(gio_search, self, &ga); 84 } 85 86 static int 87 gio_print(aux, pnp) 88 void *aux; 89 const char *pnp; 90 { 91 struct gio_attach_args *ga = aux; 92 93 if (pnp != 0) 94 return QUIET; 95 96 if (ga->ga_slot != GIOCF_SLOT_DEFAULT) 97 printf(" slot %d", ga->ga_slot); 98 if (ga->ga_addr != GIOCF_ADDR_DEFAULT) 99 printf(" addr 0x%x", ga->ga_addr); 100 101 return UNCONF; 102 } 103 104 static int 105 gio_search(parent, cf, aux) 106 struct device *parent; 107 struct cfdata *cf; 108 void *aux; 109 { 110 struct gio_attach_args *ga = aux; 111 112 do { 113 ga->ga_slot = cf->cf_loc[GIOCF_SLOT]; 114 ga->ga_addr = cf->cf_loc[GIOCF_ADDR]; 115 ga->ga_iot = 0; 116 ga->ga_ioh = MIPS_PHYS_TO_KSEG1(ga->ga_addr); 117 if ((*cf->cf_attach->ca_match)(parent, cf, ga) > 0) 118 config_attach(parent, cf, ga, gio_print); 119 } while (cf->cf_fstate == FSTATE_STAR); 120 121 return 0; 122 } 123