Annotation of sys/arch/macppc/dev/uni_n.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: uni_n.c,v 1.15 2006/06/19 22:41:35 miod Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1998-2001 Dale Rahn.
! 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 BE LIABLE FOR ANY DIRECT, INDIRECT,
! 20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
! 22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
! 23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
! 24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
! 25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
! 26: */
! 27:
! 28: #include <sys/param.h>
! 29: #include <sys/device.h>
! 30: #include <sys/systm.h>
! 31:
! 32: #include <machine/bus.h>
! 33: #include <machine/autoconf.h>
! 34:
! 35: #include <dev/ofw/openfirm.h>
! 36:
! 37: struct memc_softc {
! 38: struct device sc_dev;
! 39: struct ppc_bus_space sc_membus_space;
! 40:
! 41: };
! 42:
! 43: int memcmatch(struct device *, void *, void *);
! 44: void memcattach(struct device *, struct device *, void *);
! 45: void memc_attach_children(struct memc_softc *sc, int memc_node);
! 46: int memc_print(void *aux, const char *name);
! 47:
! 48: /* Driver definition */
! 49: struct cfdriver memc_cd = {
! 50: NULL, "memc", DV_DULL
! 51: };
! 52: /* Driver definition */
! 53: struct cfattach memc_ca = {
! 54: sizeof(struct memc_softc), memcmatch, memcattach
! 55: };
! 56:
! 57: void uni_n_config(char *, int);
! 58:
! 59: int
! 60: memcmatch(struct device *parent, void *cf, void *aux)
! 61: {
! 62: struct confargs *ca = aux;
! 63: static int memc_attached = 0;
! 64:
! 65: /* allow only one instance */
! 66: if (memc_attached == 0) {
! 67: if (0 == strcmp (ca->ca_name, "memc"))
! 68: return 1;
! 69: }
! 70: return 0;
! 71: }
! 72:
! 73: void
! 74: memcattach(struct device *parent, struct device *self, void *aux)
! 75: {
! 76: struct confargs *ca = aux;
! 77: int len;
! 78: char name[64];
! 79: struct memc_softc *sc = (struct memc_softc *)self;
! 80:
! 81: len = OF_getprop(ca->ca_node, "name", name, sizeof name);
! 82: if (len > 0)
! 83: name[len] = 0;
! 84:
! 85: uni_n_config(name, ca->ca_node);
! 86:
! 87: printf (": %s\n", name);
! 88:
! 89: memc_attach_children(sc, ca->ca_node);
! 90: }
! 91:
! 92: void
! 93: memc_attach_children(struct memc_softc *sc, int memc_node)
! 94: {
! 95: struct confargs ca;
! 96: int node, namelen;
! 97: u_int32_t reg[20];
! 98: char name[32];
! 99:
! 100: sc->sc_membus_space.bus_base = ca.ca_baseaddr;
! 101:
! 102: ca.ca_iot = &sc->sc_membus_space;
! 103: ca.ca_dmat = 0; /* XXX */
! 104: ca.ca_baseaddr = 0; /* XXX */
! 105: sc->sc_membus_space.bus_base = ca.ca_baseaddr;
! 106:
! 107: for (node = OF_child(memc_node); node; node = OF_peer(node)) {
! 108: namelen = OF_getprop(node, "name", name, sizeof(name));
! 109: if (namelen < 0)
! 110: continue;
! 111: if (namelen >= sizeof(name))
! 112: continue;
! 113: name[namelen] = 0;
! 114:
! 115: ca.ca_name = name;
! 116: ca.ca_node = node;
! 117: ca.ca_nreg = OF_getprop(node, "reg", reg, sizeof(reg));
! 118: ca.ca_reg = reg;
! 119: ca.ca_nintr = 0; /* XXX */
! 120: ca.ca_intr = NULL; /* XXX */
! 121:
! 122: config_found((struct device *)sc, &ca, memc_print);
! 123: }
! 124: }
! 125:
! 126: int
! 127: memc_print(void *aux, const char *name)
! 128: {
! 129: struct confargs *ca = aux;
! 130: /* we dont want extra stuff printing */
! 131: if (name)
! 132: printf("\"%s\" at %s", ca->ca_name, name);
! 133: if (ca->ca_nreg > 0)
! 134: printf(" offset 0x%x", ca->ca_reg[0]);
! 135: return UNCONF;
! 136: }
! 137:
! 138: void
! 139: uni_n_config(char *name, int handle)
! 140: {
! 141: char *baseaddr;
! 142: int *ctladdr;
! 143: u_int32_t address;
! 144:
! 145: /* sanity test */
! 146: if (strcmp (name, "uni-n") == 0 || strcmp (name, "u3") == 0
! 147: || strcmp (name, "u4") == 0) {
! 148: if (OF_getprop(handle, "reg", &address,
! 149: sizeof address) > 0) {
! 150: baseaddr = mapiodev(address, NBPG);
! 151: ctladdr = (void *)(baseaddr + 0x20);
! 152: *ctladdr |= 0x02;
! 153: }
! 154: }
! 155: }
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