Annotation of sys/arch/hppa/dev/lasi.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: lasi.c,v 1.22 2004/09/15 20:11:28 mickey 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: #undef LASIDEBUG
! 30:
! 31: #include <sys/param.h>
! 32: #include <sys/systm.h>
! 33: #include <sys/device.h>
! 34: #include <sys/reboot.h>
! 35:
! 36: #include <machine/bus.h>
! 37: #include <machine/iomod.h>
! 38: #include <machine/reg.h>
! 39: #include <machine/autoconf.h>
! 40:
! 41: #include <hppa/dev/cpudevs.h>
! 42:
! 43: #include <hppa/gsc/gscbusvar.h>
! 44:
! 45: #define LASI_IOMASK 0xfff00000
! 46:
! 47: struct lasi_hwr {
! 48: u_int32_t lasi_power;
! 49: #define LASI_BLINK 0x01
! 50: #define LASI_OFF 0x02
! 51: u_int32_t lasi_error;
! 52: u_int32_t lasi_version;
! 53: u_int32_t lasi_reset;
! 54: u_int32_t lasi_arbmask;
! 55: };
! 56:
! 57: struct lasi_trs {
! 58: u_int32_t lasi_irr; /* int requset register */
! 59: u_int32_t lasi_imr; /* int mask register */
! 60: u_int32_t lasi_ipr; /* int pending register */
! 61: u_int32_t lasi_icr; /* int command? register */
! 62: u_int32_t lasi_iar; /* int acquire? register */
! 63: };
! 64:
! 65: struct lasi_softc {
! 66: struct device sc_dev;
! 67: struct gscbus_ic sc_ic;
! 68:
! 69: struct lasi_hwr volatile *sc_hw;
! 70: struct lasi_trs volatile *sc_trs;
! 71: struct gsc_attach_args ga; /* for deferred attach */
! 72: };
! 73:
! 74: int lasimatch(struct device *, void *, void *);
! 75: void lasiattach(struct device *, struct device *, void *);
! 76:
! 77: struct cfattach lasi_ca = {
! 78: sizeof(struct lasi_softc), lasimatch, lasiattach
! 79: };
! 80:
! 81: struct cfdriver lasi_cd = {
! 82: NULL, "lasi", DV_DULL
! 83: };
! 84:
! 85: void lasi_cold_hook(int on);
! 86: void lasi_gsc_attach(struct device *self);
! 87:
! 88: int
! 89: lasimatch(parent, cfdata, aux)
! 90: struct device *parent;
! 91: void *cfdata;
! 92: void *aux;
! 93: {
! 94: register struct confargs *ca = aux;
! 95: /* register struct cfdata *cf = cfdata; */
! 96:
! 97: if (ca->ca_type.iodc_type != HPPA_TYPE_BHA ||
! 98: ca->ca_type.iodc_sv_model != HPPA_BHA_LASI)
! 99: return 0;
! 100:
! 101: return 1;
! 102: }
! 103:
! 104: void
! 105: lasiattach(parent, self, aux)
! 106: struct device *parent;
! 107: struct device *self;
! 108: void *aux;
! 109: {
! 110: struct lasi_softc *sc = (struct lasi_softc *)self;
! 111: struct confargs *ca = aux;
! 112: bus_space_handle_t ioh, ioh2;
! 113: int s, in;
! 114:
! 115: if (bus_space_map(ca->ca_iot, ca->ca_hpa,
! 116: IOMOD_HPASIZE, 0, &ioh)) {
! 117: printf(": can't map TRS space\n");
! 118: return;
! 119: }
! 120:
! 121: if (bus_space_map(ca->ca_iot, ca->ca_hpa + 0xc000,
! 122: IOMOD_HPASIZE, 0, &ioh2)) {
! 123: bus_space_unmap(ca->ca_iot, ioh, IOMOD_HPASIZE);
! 124: printf(": can't map IO space\n");
! 125: return;
! 126: }
! 127:
! 128: sc->sc_trs = (struct lasi_trs *)ca->ca_hpa;
! 129: sc->sc_hw = (struct lasi_hwr *)(ca->ca_hpa + 0xc000);
! 130:
! 131: /* XXX should we reset the chip here? */
! 132:
! 133: printf(": rev %d.%d\n", (sc->sc_hw->lasi_version & 0xf0) >> 4,
! 134: sc->sc_hw->lasi_version & 0xf);
! 135:
! 136: /* interrupts guts */
! 137: s = splhigh();
! 138: sc->sc_trs->lasi_iar = cpu_gethpa(0) | (31 - ca->ca_irq);
! 139: sc->sc_trs->lasi_icr = 0;
! 140: sc->sc_trs->lasi_imr = ~0U;
! 141: in = sc->sc_trs->lasi_irr;
! 142: sc->sc_trs->lasi_imr = 0;
! 143: splx(s);
! 144:
! 145: sc->sc_ic.gsc_type = gsc_lasi;
! 146: sc->sc_ic.gsc_dv = sc;
! 147: sc->sc_ic.gsc_base = sc->sc_trs;
! 148:
! 149: #ifdef USELEDS
! 150: /* figure out the leds address */
! 151: switch (cpu_hvers) {
! 152: case HPPA_BOARD_HP712_60:
! 153: case HPPA_BOARD_HP712_80:
! 154: case HPPA_BOARD_HP712_100:
! 155: case HPPA_BOARD_HP743I_64:
! 156: case HPPA_BOARD_HP743I_100:
! 157: case HPPA_BOARD_HP712_120:
! 158: break; /* only has one led. works different */
! 159:
! 160: case HPPA_BOARD_HP715_64:
! 161: case HPPA_BOARD_HP715_80:
! 162: case HPPA_BOARD_HP715_100:
! 163: case HPPA_BOARD_HP715_100XC:
! 164: case HPPA_BOARD_HP725_100:
! 165: case HPPA_BOARD_HP725_120:
! 166: if (bus_space_map(ca->ca_iot, ca->ca_hpa - 0x20000,
! 167: 4, 0, (bus_space_handle_t *)&machine_ledaddr))
! 168: machine_ledaddr = NULL;
! 169: machine_ledword = 1;
! 170: break;
! 171:
! 172: case HPPA_BOARD_HP800_A180C:
! 173: case HPPA_BOARD_HP778_B132L:
! 174: case HPPA_BOARD_HP778_B132LP:
! 175: case HPPA_BOARD_HP778_B160L:
! 176: case HPPA_BOARD_HP778_B180L:
! 177: case HPPA_BOARD_HP780_C100:
! 178: case HPPA_BOARD_HP780_C110:
! 179: case HPPA_BOARD_HP779_C132L:
! 180: case HPPA_BOARD_HP779_C160L:
! 181: case HPPA_BOARD_HP779_C180L:
! 182: case HPPA_BOARD_HP779_C160L1:
! 183: if (bus_space_map(ca->ca_iot, 0xf0190000,
! 184: 4, 0, (bus_space_handle_t *)&machine_ledaddr))
! 185: machine_ledaddr = NULL;
! 186: machine_ledword = 1;
! 187: break;
! 188:
! 189: default:
! 190: machine_ledaddr = (u_int8_t *)sc->sc_hw;
! 191: machine_ledword = 1;
! 192: break;
! 193: }
! 194: #endif
! 195:
! 196: sc->ga.ga_ca = *ca; /* clone from us */
! 197: if (!strcmp(parent->dv_xname, "mainbus0")) {
! 198: sc->ga.ga_dp.dp_bc[0] = sc->ga.ga_dp.dp_bc[1];
! 199: sc->ga.ga_dp.dp_bc[1] = sc->ga.ga_dp.dp_bc[2];
! 200: sc->ga.ga_dp.dp_bc[2] = sc->ga.ga_dp.dp_bc[3];
! 201: sc->ga.ga_dp.dp_bc[3] = sc->ga.ga_dp.dp_bc[4];
! 202: sc->ga.ga_dp.dp_bc[4] = sc->ga.ga_dp.dp_bc[5];
! 203: sc->ga.ga_dp.dp_bc[5] = sc->ga.ga_dp.dp_mod;
! 204: sc->ga.ga_dp.dp_mod = 0;
! 205: }
! 206: if (sc->sc_dev.dv_unit)
! 207: config_defer(self, lasi_gsc_attach);
! 208: else {
! 209: extern void (*cold_hook)(int);
! 210:
! 211: lasi_gsc_attach(self);
! 212: /* could be already set by power(4) */
! 213: if (!cold_hook)
! 214: cold_hook = lasi_cold_hook;
! 215: }
! 216: }
! 217:
! 218: void
! 219: lasi_gsc_attach(self)
! 220: struct device *self;
! 221: {
! 222: struct lasi_softc *sc = (struct lasi_softc *)self;
! 223:
! 224: sc->ga.ga_name = "gsc";
! 225: sc->ga.ga_hpamask = LASI_IOMASK;
! 226: sc->ga.ga_ic = &sc->sc_ic;
! 227: config_found(self, &sc->ga, gscprint);
! 228: }
! 229:
! 230: void
! 231: lasi_cold_hook(on)
! 232: int on;
! 233: {
! 234: register struct lasi_softc *sc = lasi_cd.cd_devs[0];
! 235:
! 236: if (!sc)
! 237: return;
! 238:
! 239: switch (on) {
! 240: case HPPA_COLD_COLD:
! 241: sc->sc_hw->lasi_power = LASI_BLINK;
! 242: break;
! 243: case HPPA_COLD_HOT:
! 244: sc->sc_hw->lasi_power = 0;
! 245: break;
! 246: case HPPA_COLD_OFF:
! 247: sc->sc_hw->lasi_power = LASI_OFF;
! 248: break;
! 249: }
! 250: }
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