1 /* $NetBSD: gio.c,v 1.8 2002/11/09 18:55:45 thorpej 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 CFATTACH_DECL(gio, sizeof(struct gio_softc), 56 gio_match, gio_attach, NULL, NULL); 57 58 static int 59 gio_match(parent, match, aux) 60 struct device *parent; 61 struct cfdata *match; 62 void *aux; 63 { 64 struct giobus_attach_args *gba = aux; 65 66 if (strcmp(gba->gba_busname, match->cf_name) != 0) 67 return 0; 68 69 return 1; 70 } 71 72 static void 73 gio_attach(parent, self, aux) 74 struct device *parent; 75 struct device *self; 76 void *aux; 77 { 78 struct gio_attach_args ga; 79 80 printf("\n"); 81 82 config_search(gio_search, self, &ga); 83 } 84 85 static int 86 gio_print(aux, pnp) 87 void *aux; 88 const char *pnp; 89 { 90 struct gio_attach_args *ga = aux; 91 92 if (pnp != 0) 93 return QUIET; 94 95 if (ga->ga_slot != GIOCF_SLOT_DEFAULT) 96 printf(" slot %d", ga->ga_slot); 97 if (ga->ga_addr != (uint32_t) GIOCF_ADDR_DEFAULT) 98 printf(" addr 0x%x", ga->ga_addr); 99 100 return UNCONF; 101 } 102 103 static int 104 gio_search(parent, cf, aux) 105 struct device *parent; 106 struct cfdata *cf; 107 void *aux; 108 { 109 struct gio_attach_args *ga = aux; 110 111 do { 112 ga->ga_slot = cf->cf_loc[GIOCF_SLOT]; 113 ga->ga_addr = cf->cf_loc[GIOCF_ADDR]; 114 ga->ga_iot = 0; 115 ga->ga_ioh = MIPS_PHYS_TO_KSEG1(ga->ga_addr); 116 if (config_match(parent, cf, ga) > 0) 117 config_attach(parent, cf, ga, gio_print); 118 } while (cf->cf_fstate == FSTATE_STAR); 119 120 return 0; 121 } 122