1 /* $NetBSD: uni-n.c,v 1.2 2005/12/11 12:18:03 christos Exp $ */ 2 3 /*- 4 * Copyright (C) 2005 Michael Lorenz. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * a driver to match the uni_n node in OF's device tree and attach its children 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: uni-n.c,v 1.2 2005/12/11 12:18:03 christos Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 41 #include <dev/ofw/openfirm.h> 42 43 #include <machine/autoconf.h> 44 45 static void uni_n_attach(struct device *, struct device *, void *); 46 static int uni_n_match(struct device *, struct cfdata *, void *); 47 static int uni_n_print(void *, const char *); 48 49 struct uni_n_softc { 50 struct device sc_dev; 51 int sc_node; 52 }; 53 54 CFATTACH_DECL(uni_n, sizeof(struct uni_n_softc), 55 uni_n_match, uni_n_attach, NULL, NULL); 56 57 int 58 uni_n_match(parent, cf, aux) 59 struct device *parent; 60 struct cfdata *cf; 61 void *aux; 62 { 63 struct confargs *ca = aux; 64 char compat[32]; 65 if (strcmp(ca->ca_name, "uni-n") != 0) 66 return 0; 67 68 memset(compat, 0, sizeof(compat)); 69 OF_getprop(ca->ca_node, "compatible", compat, sizeof(compat)); 70 if (strcmp(compat, "uni-north") != 0) 71 return 0; 72 73 return 1; 74 } 75 76 /* 77 * Attach all the sub-devices we can find 78 */ 79 void 80 uni_n_attach(parent, self, aux) 81 struct device *parent, *self; 82 void *aux; 83 { 84 struct uni_n_softc *sc = (struct uni_n_softc *)self; 85 struct confargs *our_ca = aux; 86 struct confargs ca; 87 int node, child, namelen; 88 u_int reg[20]; 89 int intr[6]; 90 char name[32]; 91 92 node = OF_finddevice("/uni-n"); 93 sc->sc_node = node; 94 printf(" address 0x%08x\n",our_ca->ca_reg[0]); 95 96 for (child = OF_child(node); child; child = OF_peer(child)) { 97 namelen = OF_getprop(child, "name", name, sizeof(name)); 98 if (namelen < 0) 99 continue; 100 if (namelen >= sizeof(name)) 101 continue; 102 103 name[namelen] = 0; 104 ca.ca_name = name; 105 ca.ca_node = child; 106 107 ca.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 108 ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 109 sizeof(intr)); 110 if (ca.ca_nintr == -1) 111 ca.ca_nintr = OF_getprop(child, "interrupts", intr, 112 sizeof(intr)); 113 114 ca.ca_reg = reg; 115 ca.ca_intr = intr; 116 117 config_found(self, &ca, uni_n_print); 118 } 119 } 120 121 int 122 uni_n_print(aux, uni_n) 123 void *aux; 124 const char *uni_n; 125 { 126 struct confargs *ca = aux; 127 if (uni_n) 128 aprint_normal("%s at %s", ca->ca_name, uni_n); 129 130 if (ca->ca_nreg > 0) 131 aprint_normal(" address 0x%x", ca->ca_reg[0]); 132 133 return UNCONF; 134 } 135