1 /* $OpenBSD: wax.c,v 1.10 2004/11/08 20:53:25 miod Exp $ */ 2 3 /* 4 * Copyright (c) 1998-2003 Michael Shalayeff 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/device.h> 32 #include <sys/reboot.h> 33 34 #include <machine/iomod.h> 35 #include <machine/autoconf.h> 36 37 #include <hppa/dev/cpudevs.h> 38 39 #include <hppa/gsc/gscbusvar.h> 40 41 #define WAX_IOMASK 0xfff00000 42 43 struct wax_regs { 44 u_int32_t wax_irr; /* int request register */ 45 u_int32_t wax_imr; /* int mask register */ 46 u_int32_t wax_ipr; /* int pending register */ 47 u_int32_t wax_icr; /* int command? register */ 48 u_int32_t wax_iar; /* int acquire? register */ 49 }; 50 51 struct wax_softc { 52 struct device sc_dv; 53 struct gscbus_ic sc_ic; 54 55 struct wax_regs volatile *sc_regs; 56 }; 57 58 int waxmatch(struct device *, void *, void *); 59 void waxattach(struct device *, struct device *, void *); 60 void wax_gsc_attach(struct device *); 61 62 struct cfattach wax_ca = { 63 sizeof(struct wax_softc), waxmatch, waxattach 64 }; 65 66 struct cfdriver wax_cd = { 67 NULL, "wax", DV_DULL 68 }; 69 70 int 71 waxmatch(parent, cfdata, aux) 72 struct device *parent; 73 void *cfdata; 74 void *aux; 75 { 76 struct confargs *ca = aux; 77 struct cfdata *cf = cfdata; 78 79 /* there will be only one */ 80 if (cf->cf_unit > 0 || 81 ca->ca_type.iodc_type != HPPA_TYPE_BHA || 82 ca->ca_type.iodc_sv_model != HPPA_BHA_WAX) 83 return 0; 84 85 return 1; 86 } 87 88 void 89 waxattach(parent, self, aux) 90 struct device *parent; 91 struct device *self; 92 void *aux; 93 { 94 struct wax_softc *sc = (struct wax_softc *)self; 95 struct confargs *ca = aux; 96 struct gsc_attach_args ga; 97 bus_space_handle_t ioh; 98 int s, in; 99 100 if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh)) { 101 printf(": can't map IO space\n"); 102 return; 103 } 104 105 sc->sc_regs = (struct wax_regs *)ca->ca_hpa; 106 107 printf("\n"); 108 109 /* interrupts guts */ 110 s = splhigh(); 111 sc->sc_regs->wax_iar = cpu_gethpa(0) | (31 - ca->ca_irq); 112 sc->sc_regs->wax_icr = 0; 113 sc->sc_regs->wax_imr = ~0U; 114 in = sc->sc_regs->wax_irr; 115 sc->sc_regs->wax_imr = 0; 116 splx(s); 117 118 sc->sc_ic.gsc_type = gsc_wax; 119 sc->sc_ic.gsc_dv = sc; 120 sc->sc_ic.gsc_base = sc->sc_regs; 121 122 ga.ga_ca = *ca; /* clone from us */ 123 if (!strcmp(parent->dv_xname, "mainbus0")) { 124 ga.ga_dp.dp_bc[0] = ga.ga_dp.dp_bc[1]; 125 ga.ga_dp.dp_bc[1] = ga.ga_dp.dp_bc[2]; 126 ga.ga_dp.dp_bc[2] = ga.ga_dp.dp_bc[3]; 127 ga.ga_dp.dp_bc[3] = ga.ga_dp.dp_bc[4]; 128 ga.ga_dp.dp_bc[4] = ga.ga_dp.dp_bc[5]; 129 ga.ga_dp.dp_bc[5] = ga.ga_dp.dp_mod; 130 ga.ga_dp.dp_mod = 0; 131 } 132 133 ga.ga_name = "gsc"; 134 ga.ga_hpamask = WAX_IOMASK; 135 ga.ga_ic = &sc->sc_ic; 136 config_found(self, &ga, gscprint); 137 } 138