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obio.c revision 1.13 
      1 /*	$NetBSD: obio.c,v 1.13 2001/03/02 20:36:00 tsubai Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1998	Internet Research Institute, Inc.
      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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by
     18  *	Internet Research Institute, Inc.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     31  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/kernel.h>
     37 #include <sys/device.h>
     38 
     39 #include <dev/pci/pcivar.h>
     40 #include <dev/pci/pcidevs.h>
     41 
     42 #include <dev/ofw/openfirm.h>
     43 
     44 #include <machine/autoconf.h>
     45 
     46 static void obio_attach __P((struct device *, struct device *, void *));
     47 static int obio_match __P((struct device *, struct cfdata *, void *));
     48 static int obio_print __P((void *, const char *));
     49 
     50 struct obio_softc {
     51 	struct device sc_dev;
     52 	int sc_node;
     53 };
     54 
     55 
     56 struct cfattach obio_ca = {
     57 	sizeof(struct obio_softc), obio_match, obio_attach
     58 };
     59 
     60 int
     61 obio_match(parent, cf, aux)
     62 	struct device *parent;
     63 	struct cfdata *cf;
     64 	void *aux;
     65 {
     66 	struct pci_attach_args *pa = aux;
     67 
     68 	if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE)
     69 		switch (PCI_PRODUCT(pa->pa_id)) {
     70 
     71 		case PCI_PRODUCT_APPLE_GC:
     72 		case PCI_PRODUCT_APPLE_OHARE:
     73 		case PCI_PRODUCT_APPLE_HEATHROW:
     74 		case PCI_PRODUCT_APPLE_PADDINGTON:
     75 		case PCI_PRODUCT_APPLE_KEYLARGO:
     76 			return 1;
     77 		}
     78 
     79 	return 0;
     80 }
     81 
     82 /*
     83  * Attach all the sub-devices we can find
     84  */
     85 void
     86 obio_attach(parent, self, aux)
     87 	struct device *parent, *self;
     88 	void *aux;
     89 {
     90 	struct obio_softc *sc = (struct obio_softc *)self;
     91 	struct pci_attach_args *pa = aux;
     92 	struct confargs ca;
     93 	int node, child, namelen;
     94 	u_int reg[20];
     95 	int intr[6];
     96 	char name[32];
     97 
     98 	switch (PCI_PRODUCT(pa->pa_id)) {
     99 
    100 	/* XXX should not use name */
    101 	case PCI_PRODUCT_APPLE_GC:
    102 		node = OF_finddevice("/bandit/gc");
    103 		break;
    104 
    105 	case PCI_PRODUCT_APPLE_OHARE:
    106 		node = OF_finddevice("/bandit/ohare");
    107 		break;
    108 
    109 	case PCI_PRODUCT_APPLE_HEATHROW:
    110 	case PCI_PRODUCT_APPLE_PADDINGTON:
    111 	case PCI_PRODUCT_APPLE_KEYLARGO:
    112 		node = OF_finddevice("mac-io");
    113 		if (node == -1)
    114 			node = OF_finddevice("/pci/mac-io");
    115 		break;
    116 
    117 	default:
    118 		printf("obio_attach: unknown obio controller\n");
    119 		return;
    120 	}
    121 
    122 	sc->sc_node = node;
    123 
    124 	if (OF_getprop(node, "assigned-addresses", reg, sizeof(reg)) < 12)
    125 		return;
    126 	ca.ca_baseaddr = reg[2];
    127 
    128 	printf(": addr 0x%x\n", ca.ca_baseaddr);
    129 
    130 	/* Enable CD and microphone sound input. */
    131 	if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_PADDINGTON)
    132 		out8(ca.ca_baseaddr + 0x37, 0x03);
    133 
    134 	for (child = OF_child(node); child; child = OF_peer(child)) {
    135 		namelen = OF_getprop(child, "name", name, sizeof(name));
    136 		if (namelen < 0)
    137 			continue;
    138 		if (namelen >= sizeof(name))
    139 			continue;
    140 
    141 		name[namelen] = 0;
    142 		ca.ca_name = name;
    143 		ca.ca_node = child;
    144 
    145 		ca.ca_nreg  = OF_getprop(child, "reg", reg, sizeof(reg));
    146 		ca.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr,
    147 				sizeof(intr));
    148 		if (ca.ca_nintr == -1)
    149 			ca.ca_nintr = OF_getprop(child, "interrupts", intr,
    150 					sizeof(intr));
    151 
    152 		ca.ca_reg = reg;
    153 		ca.ca_intr = intr;
    154 
    155 		config_found(self, &ca, obio_print);
    156 	}
    157 }
    158 
    159 static char *skiplist[] = {
    160 	"interrupt-controller",
    161 	"gpio",
    162 	"escc-legacy",
    163 	"timer",
    164 	"i2c",
    165 	"power-mgt"
    166 };
    167 
    168 #define N_LIST (sizeof(skiplist) / sizeof(skiplist[0]))
    169 
    170 int
    171 obio_print(aux, obio)
    172 	void *aux;
    173 	const char *obio;
    174 {
    175 	struct confargs *ca = aux;
    176 	int i;
    177 
    178 	for (i = 0; i < N_LIST; i++)
    179 		if (strcmp(ca->ca_name, skiplist[i]) == 0)
    180 			return QUIET;
    181 
    182 	if (obio)
    183 		printf("%s at %s", ca->ca_name, obio);
    184 
    185 	if (ca->ca_nreg > 0)
    186 		printf(" offset 0x%x", ca->ca_reg[0]);
    187 
    188 	return UNCONF;
    189 }
    190