1/* $NetBSD: gscbus.c,v 1.4 2022/09/29 06:39:58 skrll Exp $ */ 2 3/* $OpenBSD: gscbus.c,v 1.13 2001/08/01 20:32:04 miod Exp $ */ 4 5/* 6 * Copyright (c) 1998 Michael Shalayeff 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 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 OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 22 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 24 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 27 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31/* 32 * Sample IO layouts: 33 * 712: 34 * 35 * f0100000 -- lasi0 36 * f0102000 -- lpt0 37 * f0104000 -- audio0 38 * f0105000 -- com0 39 * f0106000 -- siop0 40 * f0107000 -- ie0 41 * f0108000 -- kbd0 42 * f0108100 -- pms0 43 * f010a000 -- fdc0 44 * f010c000 -- *lasi0 45 * f0200000 -- wax0 46 * f8000000 -- sti0 47 * fffbe000 -- cpu0 48 * fffbf000 -- mem0 49 * 50 * 725/50: 51 * 52 * f0820000 -- dma 53 * f0821000 -- hil 54 * f0822000 -- com1 55 * f0823000 -- com0 56 * f0824000 -- lpt0 57 * f0825000 -- siop0 58 * f0826000 -- ie0 59 * f0827000 -- dma reset 60 * f0828000 -- timers 61 * f0829000 -- domain kbd 62 * f082f000 -- asp0 63 * f1000000 -- audio0 64 * fc000000 -- eisa0 65 * fffbe000 -- cpu0 66 * fffbf000 -- mem0 67 * 68 */ 69 70#include <sys/cdefs.h> 71__KERNEL_RCSID(0, "$NetBSD: gscbus.c,v 1.4 2022/09/29 06:39:58 skrll Exp $"); 72 73#define GSCDEBUG 74 75#include "opt_kgdb.h" 76 77#include <sys/param.h> 78#include <sys/systm.h> 79#include <sys/device.h> 80#include <sys/mbuf.h> 81#include <sys/reboot.h> 82 83#include <machine/iomod.h> 84#include <machine/autoconf.h> 85#include <machine/cpufunc.h> 86 87#include <hppa/gsc/gscbusvar.h> 88#include <hppa/hppa/machdep.h> 89 90int gscmatch(device_t, cfdata_t, void *); 91void gscattach(device_t, device_t, void *); 92 93struct gsc_softc { 94 device_t sc_dev; 95 struct gsc_attach_args sc_ga; 96 void *sc_ih; 97}; 98 99CFATTACH_DECL_NEW(gsc, sizeof(struct gsc_softc), 100 gscmatch, gscattach, NULL, NULL); 101 102/* 103 * pdc_scanbus calls this function back with each module 104 * it finds on the GSC bus. We call the IC-specific function 105 * to fix up the module's attach arguments, then we match 106 * and attach it. 107 */ 108static device_t gsc_module_callback(device_t, struct confargs *); 109static device_t 110gsc_module_callback(device_t self, struct confargs *ca) 111{ 112 struct gsc_softc *sc = device_private(self); 113 struct gsc_attach_args ga; 114 115 /* Make the GSC attach args. */ 116 ga = sc->sc_ga; 117 ga.ga_ca = *ca; 118 ga.ga_iot = sc->sc_ga.ga_iot; 119 ga.ga_dmatag = sc->sc_ga.ga_dmatag; 120 (*sc->sc_ga.ga_fix_args)(sc->sc_ga.ga_fix_args_cookie, &ga); 121 122 return config_found(self, &ga, mbprint, 123 CFARGS(.submatch = mbsubmatch)); 124} 125 126int 127gscmatch(device_t parent, cfdata_t cf, void *aux) 128{ 129 struct gsc_attach_args *ga = aux; 130 131 return !strcmp(ga->ga_name, "gsc"); 132} 133 134void 135gscattach(device_t parent, device_t self, void *aux) 136{ 137 struct gsc_softc *sc = device_private(self); 138 struct gsc_attach_args *ga = aux; 139 struct cpu_info *ci = &cpus[0]; 140 141 sc->sc_dev = self; 142 sc->sc_ga = *ga; 143 144#ifdef USELEDS 145 if (machine_ledaddr) 146 aprint_normal(": %sleds", machine_ledword? "word" : ""); 147#endif 148 149 aprint_normal("\n"); 150 151 /* Add the I/O subsystem's interrupt register. */ 152 ga->ga_ir->ir_name = device_xname(self); 153 sc->sc_ih = hppa_intr_establish(IPL_NONE, NULL, ga->ga_ir, 154 &ci->ci_ir, ga->ga_irq); 155 156 ga->ga_ca.ca_nmodules = MAXMODBUS; 157 ga->ga_ca.ca_hpabase = 0; 158 pdc_scanbus(self, &ga->ga_ca, gsc_module_callback); 159} 160 161int 162gscprint(void *aux, const char *pnp) 163{ 164 165 return (UNCONF); 166} 167