1/* $OpenBSD: gecko.c,v 1.1 2008/04/27 14:39:51 kettenis Exp $ */ 2 3/* 4 * Copyright (c) 2007 Mark Kettenis 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19#include <sys/param.h> 20#include <sys/device.h> 21#include <sys/kernel.h> 22#include <sys/systm.h> 23 24#include <machine/autoconf.h> 25#include <sys/bus.h> 26#include <machine/cpu.h> 27#include <machine/iomod.h> 28#include <machine/pdc.h> 29 30#include <hppa/dev/cpudevs.h> 31 32struct gecko_softc { 33 device_t sc_dv; 34 35 bus_space_tag_t sc_iot; 36 bus_space_handle_t sc_ioh; 37}; 38 39int gecko_match(device_t, cfdata_t, void *); 40void gecko_attach(device_t, device_t, void *); 41static device_t gecko_callback(device_t, struct confargs *); 42 43CFATTACH_DECL_NEW(gecko, sizeof(struct gecko_softc), gecko_match, 44 gecko_attach, NULL, NULL); 45 46int 47gecko_match(device_t parent, cfdata_t match, void *aux) 48{ 49 struct confargs *ca = aux; 50 51 if (ca->ca_type.iodc_type != HPPA_TYPE_BCPORT || 52 ca->ca_type.iodc_sv_model != HPPA_BCPORT_PORT) 53 return (0); 54 55 if (ca->ca_type.iodc_model == 0x50 && 56 ca->ca_type.iodc_revision == 0x00) 57 return (1); 58 59 return (0); 60} 61 62void 63gecko_attach(device_t parent, device_t self, void *aux) 64{ 65 struct gecko_softc *sc = device_private(self); 66 struct confargs *ca = aux, nca; 67 volatile struct iomod *regs; 68 69 sc->sc_dv = self; 70 sc->sc_iot = ca->ca_iot; 71 if (bus_space_map(sc->sc_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, 72 &sc->sc_ioh)) { 73 aprint_error(": can't map IO space\n"); 74 return; 75 } 76 regs = bus_space_vaddr(ca->ca_iot, sc->sc_ioh); 77 78 aprint_verbose(": %x-%x", regs->io_io_low, regs->io_io_high); 79 80 aprint_normal("\n"); 81 82 nca = *ca; 83 nca.ca_hpabase = regs->io_io_low; 84 nca.ca_nmodules = MAXMODBUS; 85 86 pdc_scanbus(self, &nca, gecko_callback); 87} 88 89static device_t 90gecko_callback(device_t self, struct confargs *ca) 91{ 92 93 return config_round(self, ca, mbprint, 94 CFARGS(.submatch = mbsubmatch)); 95} 96 97