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adb.c revision 1.24.18.1
      1  1.24.18.1      yamt /*	$NetBSD: adb.c,v 1.24.18.1 2009/05/04 08:11:28 yamt Exp $	*/
      2        1.1    tsubai 
      3        1.1    tsubai /*-
      4        1.1    tsubai  * Copyright (C) 1994	Bradley A. Grantham
      5        1.1    tsubai  * All rights reserved.
      6        1.1    tsubai  *
      7        1.1    tsubai  * Redistribution and use in source and binary forms, with or without
      8        1.1    tsubai  * modification, are permitted provided that the following conditions
      9        1.1    tsubai  * are met:
     10        1.1    tsubai  * 1. Redistributions of source code must retain the above copyright
     11        1.1    tsubai  *    notice, this list of conditions and the following disclaimer.
     12        1.1    tsubai  * 2. Redistributions in binary form must reproduce the above copyright
     13        1.1    tsubai  *    notice, this list of conditions and the following disclaimer in the
     14        1.1    tsubai  *    documentation and/or other materials provided with the distribution.
     15        1.1    tsubai  * 3. All advertising materials mentioning features or use of this software
     16        1.1    tsubai  *    must display the following acknowledgement:
     17        1.1    tsubai  *	This product includes software developed by Bradley A. Grantham.
     18        1.1    tsubai  * 4. The name of the author may not be used to endorse or promote products
     19        1.1    tsubai  *    derived from this software without specific prior written permission.
     20        1.1    tsubai  *
     21        1.1    tsubai  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22        1.1    tsubai  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23        1.1    tsubai  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24        1.1    tsubai  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25        1.1    tsubai  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26        1.1    tsubai  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27        1.1    tsubai  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28        1.1    tsubai  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29        1.1    tsubai  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     30        1.1    tsubai  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31        1.1    tsubai  */
     32       1.15     lukem 
     33       1.15     lukem #include <sys/cdefs.h>
     34  1.24.18.1      yamt __KERNEL_RCSID(0, "$NetBSD: adb.c,v 1.24.18.1 2009/05/04 08:11:28 yamt Exp $");
     35        1.1    tsubai 
     36        1.1    tsubai #include <sys/param.h>
     37        1.1    tsubai #include <sys/device.h>
     38        1.1    tsubai #include <sys/fcntl.h>
     39        1.1    tsubai #include <sys/poll.h>
     40        1.1    tsubai #include <sys/select.h>
     41        1.1    tsubai #include <sys/proc.h>
     42        1.1    tsubai #include <sys/signalvar.h>
     43        1.1    tsubai #include <sys/systm.h>
     44        1.1    tsubai 
     45       1.21  macallan #include <machine/bus.h>
     46        1.1    tsubai #include <machine/autoconf.h>
     47       1.23   garbled #include <machine/pio.h>
     48        1.1    tsubai 
     49        1.1    tsubai #include <macppc/dev/adbvar.h>
     50        1.3    tsubai #include <macppc/dev/akbdvar.h>
     51       1.17    briggs #include <macppc/dev/pm_direct.h>
     52        1.1    tsubai #include <macppc/dev/viareg.h>
     53        1.1    tsubai 
     54       1.20   gdamore #include <dev/clock_subr.h>
     55        1.9      matt #include <dev/ofw/openfirm.h>
     56        1.9      matt 
     57        1.4    tsubai #include "aed.h"
     58       1.11    itojun #include "apm.h"
     59        1.4    tsubai 
     60        1.1    tsubai /*
     61        1.1    tsubai  * Function declarations.
     62        1.1    tsubai  */
     63  1.24.18.1      yamt static int	adbmatch(struct device *, struct cfdata *, void *);
     64  1.24.18.1      yamt static void	adbattach(struct device *, struct device *, void *);
     65  1.24.18.1      yamt static int	adbprint(void *, const char *);
     66       1.20   gdamore static void	adb_todr_init(void);
     67        1.1    tsubai 
     68        1.1    tsubai /*
     69        1.1    tsubai  * Global variables.
     70        1.1    tsubai  */
     71        1.1    tsubai int     adb_polling = 0;	/* Are we polling?  (Debugger mode) */
     72        1.1    tsubai int     adb_initted = 0;	/* adb_init() has completed successfully */
     73        1.1    tsubai #ifdef ADB_DEBUG
     74        1.1    tsubai int	adb_debug = 0;		/* Output debugging messages */
     75        1.1    tsubai #endif /* ADB_DEBUG */
     76        1.1    tsubai 
     77        1.1    tsubai /*
     78        1.3    tsubai  * Driver definition.
     79        1.1    tsubai  */
     80       1.13   thorpej CFATTACH_DECL(adb, sizeof(struct adb_softc),
     81       1.13   thorpej     adbmatch, adbattach, NULL, NULL);
     82        1.5    tsubai 
     83        1.1    tsubai static int
     84  1.24.18.1      yamt adbmatch(struct device *parent, struct cfdata *cf, void *aux)
     85        1.1    tsubai {
     86        1.1    tsubai 	struct confargs *ca = aux;
     87        1.1    tsubai 
     88        1.1    tsubai 	if (ca->ca_nreg < 8)
     89        1.1    tsubai 		return 0;
     90        1.1    tsubai 
     91        1.1    tsubai 	if (ca->ca_nintr < 4)
     92        1.1    tsubai 		return 0;
     93        1.1    tsubai 
     94        1.5    tsubai 	if (strcmp(ca->ca_name, "via-cuda") == 0)
     95        1.5    tsubai 		return 1;
     96        1.5    tsubai 
     97        1.5    tsubai 	if (strcmp(ca->ca_name, "via-pmu") == 0)
     98        1.5    tsubai 		return 1;
     99        1.5    tsubai 
    100        1.5    tsubai 	return 0;
    101        1.1    tsubai }
    102        1.1    tsubai 
    103        1.1    tsubai static void
    104  1.24.18.1      yamt adbattach(struct device *parent, struct device *self, void *aux)
    105        1.1    tsubai {
    106        1.1    tsubai 	struct adb_softc *sc = (struct adb_softc *)self;
    107        1.1    tsubai 	struct confargs *ca = aux;
    108        1.8    tsubai 	int irq = ca->ca_intr[0];
    109        1.8    tsubai 	int node;
    110        1.3    tsubai 	ADBDataBlock adbdata;
    111        1.3    tsubai 	struct adb_attach_args aa_args;
    112        1.3    tsubai 	int totaladbs;
    113       1.21  macallan 	int adbindex, adbaddr, adb_node;
    114        1.3    tsubai 
    115        1.3    tsubai 	extern volatile u_char *Via1Base;
    116        1.1    tsubai 
    117        1.1    tsubai 	ca->ca_reg[0] += ca->ca_baseaddr;
    118        1.1    tsubai 
    119        1.1    tsubai 	sc->sc_regbase = mapiodev(ca->ca_reg[0], ca->ca_reg[1]);
    120        1.1    tsubai 	Via1Base = sc->sc_regbase;
    121        1.1    tsubai 
    122        1.5    tsubai 	if (strcmp(ca->ca_name, "via-cuda") == 0)
    123        1.5    tsubai 		adbHardware = ADB_HW_CUDA;
    124        1.5    tsubai 	else if (strcmp(ca->ca_name, "via-pmu") == 0)
    125       1.16    briggs 		adbHardware = ADB_HW_PMU;
    126        1.5    tsubai 
    127       1.24   garbled 	node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1");
    128        1.8    tsubai 	if (node)
    129        1.8    tsubai 		OF_getprop(node, "interrupts", &irq, 4);
    130        1.8    tsubai 
    131        1.8    tsubai 	printf(" irq %d: ", irq);
    132        1.8    tsubai 
    133        1.1    tsubai 	adb_polling = 1;
    134       1.24   garbled 	adb_node = of_getnode_byname(ca->ca_node, "adb");
    135       1.21  macallan 	if (adb_node)
    136       1.21  macallan 		ADBReInit();
    137        1.1    tsubai 
    138       1.18    briggs 	switch (adbHardware) {
    139       1.18    briggs 	case ADB_HW_CUDA:
    140       1.22  macallan 		intr_establish(irq, IST_LEVEL, IPL_TTY, adb_intr_cuda, sc);
    141       1.18    briggs 		break;
    142       1.18    briggs 	case ADB_HW_PMU:
    143       1.22  macallan 		intr_establish(irq, IST_LEVEL, IPL_TTY, pm_intr, sc);
    144       1.17    briggs 		pm_init();
    145       1.18    briggs 		break;
    146       1.17    briggs 	}
    147        1.1    tsubai 
    148       1.21  macallan 	adb_todr_init();
    149       1.21  macallan 
    150       1.21  macallan #if NAPM > 0
    151       1.21  macallan 	/* Magic for signalling the apm driver to match. */
    152       1.21  macallan 	aa_args.origaddr = ADBADDR_APM;
    153       1.21  macallan 	aa_args.adbaddr = ADBADDR_APM;
    154       1.21  macallan 	aa_args.handler_id = ADBADDR_APM;
    155       1.21  macallan 
    156       1.21  macallan 	(void)config_found(self, &aa_args, NULL);
    157       1.21  macallan #endif
    158       1.21  macallan 
    159       1.21  macallan 	/*
    160       1.21  macallan 	 * see if we're supposed to have an ADB bus
    161       1.21  macallan 	 * since some PowerBooks don't have one and their PMUs barf on ADB
    162       1.21  macallan 	 * commands we bail here if there's no adb node
    163       1.21  macallan 	 */
    164       1.21  macallan 	if (!adb_node)
    165       1.21  macallan 		return;
    166       1.21  macallan 
    167        1.3    tsubai #ifdef ADB_DEBUG
    168        1.3    tsubai 	if (adb_debug)
    169        1.3    tsubai 		printf("adb: done with ADBReInit\n");
    170        1.1    tsubai #endif
    171        1.3    tsubai 	totaladbs = CountADBs();
    172        1.1    tsubai 
    173        1.8    tsubai 	printf("%d targets\n", totaladbs);
    174        1.1    tsubai 
    175        1.4    tsubai #if NAED > 0
    176        1.3    tsubai 	/* ADB event device for compatibility */
    177        1.3    tsubai 	aa_args.origaddr = 0;
    178        1.3    tsubai 	aa_args.adbaddr = 0;
    179        1.3    tsubai 	aa_args.handler_id = 0;
    180        1.3    tsubai 	(void)config_found(self, &aa_args, adbprint);
    181        1.4    tsubai #endif
    182        1.1    tsubai 
    183        1.3    tsubai 	/* for each ADB device */
    184        1.3    tsubai 	for (adbindex = 1; adbindex <= totaladbs; adbindex++) {
    185        1.3    tsubai 		/* Get the ADB information */
    186        1.3    tsubai 		adbaddr = GetIndADB(&adbdata, adbindex);
    187        1.1    tsubai 
    188        1.3    tsubai 		aa_args.origaddr = adbdata.origADBAddr;
    189        1.3    tsubai 		aa_args.adbaddr = adbaddr;
    190        1.3    tsubai 		aa_args.handler_id = adbdata.devType;
    191        1.1    tsubai 
    192        1.3    tsubai 		(void)config_found(self, &aa_args, adbprint);
    193        1.1    tsubai 	}
    194       1.11    itojun 
    195        1.5    tsubai 	if (adbHardware == ADB_HW_CUDA)
    196        1.5    tsubai 		adb_cuda_autopoll();
    197        1.3    tsubai 	adb_polling = 0;
    198       1.20   gdamore 
    199        1.1    tsubai }
    200        1.1    tsubai 
    201        1.3    tsubai int
    202  1.24.18.1      yamt adbprint(void *args, const char *name)
    203        1.3    tsubai {
    204        1.3    tsubai 	struct adb_attach_args *aa_args = (struct adb_attach_args *)args;
    205        1.3    tsubai 	int rv = UNCONF;
    206        1.3    tsubai 
    207        1.3    tsubai 	if (name) {	/* no configured device matched */
    208        1.3    tsubai 		rv = UNSUPP; /* most ADB device types are unsupported */
    209        1.3    tsubai 
    210        1.3    tsubai 		/* print out what kind of ADB device we have found */
    211       1.14   thorpej 		aprint_normal("%s addr %d: ", name, aa_args->adbaddr);
    212        1.3    tsubai 		switch(aa_args->origaddr) {
    213        1.3    tsubai #ifdef DIAGNOSTIC
    214        1.3    tsubai 		case 0:
    215       1.14   thorpej 			aprint_normal("ADB event device");
    216        1.3    tsubai 			rv = UNCONF;
    217        1.3    tsubai 			break;
    218        1.3    tsubai 		case ADBADDR_SECURE:
    219       1.14   thorpej 			aprint_normal("security dongle (%d)",
    220       1.14   thorpej 			    aa_args->handler_id);
    221        1.3    tsubai 			break;
    222        1.1    tsubai #endif
    223        1.3    tsubai 		case ADBADDR_MAP:
    224       1.14   thorpej 			aprint_normal("mapped device (%d)",
    225       1.14   thorpej 			    aa_args->handler_id);
    226        1.3    tsubai 			rv = UNCONF;
    227        1.3    tsubai 			break;
    228        1.3    tsubai 		case ADBADDR_REL:
    229       1.14   thorpej 			aprint_normal("relative positioning device (%d)",
    230        1.3    tsubai 			    aa_args->handler_id);
    231        1.3    tsubai 			rv = UNCONF;
    232        1.3    tsubai 			break;
    233        1.3    tsubai #ifdef DIAGNOSTIC
    234        1.3    tsubai 		case ADBADDR_ABS:
    235        1.3    tsubai 			switch (aa_args->handler_id) {
    236        1.3    tsubai 			case ADB_ARTPAD:
    237       1.14   thorpej 				aprint_normal("WACOM ArtPad II");
    238        1.3    tsubai 				break;
    239        1.3    tsubai 			default:
    240       1.14   thorpej 				aprint_normal("absolute positioning device (%d)",
    241        1.3    tsubai 				    aa_args->handler_id);
    242        1.3    tsubai 				break;
    243        1.3    tsubai 			}
    244        1.3    tsubai 			break;
    245        1.3    tsubai 		case ADBADDR_DATATX:
    246       1.14   thorpej 			aprint_normal("data transfer device (modem?) (%d)",
    247        1.3    tsubai 			    aa_args->handler_id);
    248        1.1    tsubai 			break;
    249        1.3    tsubai 		case ADBADDR_MISC:
    250        1.3    tsubai 			switch (aa_args->handler_id) {
    251        1.3    tsubai 			case ADB_POWERKEY:
    252       1.14   thorpej 				aprint_normal("Sophisticated Circuits PowerKey");
    253        1.3    tsubai 				break;
    254        1.3    tsubai 			default:
    255       1.14   thorpej 				aprint_normal("misc. device (remote control?) (%d)",
    256        1.3    tsubai 				    aa_args->handler_id);
    257        1.3    tsubai 				break;
    258        1.3    tsubai 			}
    259        1.1    tsubai 			break;
    260        1.1    tsubai 		default:
    261       1.14   thorpej 			aprint_normal("unknown type device, (handler %d)",
    262        1.3    tsubai 			    aa_args->handler_id);
    263        1.1    tsubai 			break;
    264        1.3    tsubai #endif /* DIAGNOSTIC */
    265        1.1    tsubai 		}
    266        1.3    tsubai 	} else		/* a device matched and was configured */
    267       1.14   thorpej                 aprint_normal(" addr %d: ", aa_args->adbaddr);
    268        1.1    tsubai 
    269        1.7    tsubai 	return rv;
    270        1.1    tsubai }
    271       1.20   gdamore 
    272       1.20   gdamore #define DIFF19041970 2082844800
    273       1.20   gdamore 
    274       1.20   gdamore static int
    275       1.20   gdamore adb_todr_get(todr_chip_handle_t tch, volatile struct timeval *tvp)
    276       1.20   gdamore {
    277       1.20   gdamore 	unsigned long sec;
    278       1.20   gdamore 
    279       1.20   gdamore 	if (adb_read_date_time(&sec) != 0)
    280       1.20   gdamore 		return EIO;
    281       1.20   gdamore 	tvp->tv_sec = sec - DIFF19041970;
    282       1.20   gdamore 	tvp->tv_usec = 0;
    283       1.20   gdamore 	return 0;
    284       1.20   gdamore }
    285       1.20   gdamore 
    286       1.20   gdamore static int
    287       1.20   gdamore adb_todr_set(todr_chip_handle_t tch, volatile struct timeval *tvp)
    288       1.20   gdamore {
    289       1.20   gdamore 	unsigned long sec;
    290       1.20   gdamore 
    291       1.20   gdamore 	sec = tvp->tv_sec + DIFF19041970;
    292       1.20   gdamore 	return adb_set_date_time(sec) ? EIO : 0;
    293       1.20   gdamore }
    294       1.20   gdamore 
    295       1.20   gdamore void
    296       1.20   gdamore adb_todr_init(void)
    297       1.20   gdamore {
    298       1.20   gdamore 	static struct todr_chip_handle tch = {
    299       1.20   gdamore 		.todr_gettime = adb_todr_get,
    300       1.20   gdamore 		.todr_settime = adb_todr_set
    301       1.20   gdamore 	};
    302       1.20   gdamore 
    303       1.20   gdamore 	todr_attach(&tch);
    304       1.20   gdamore }
    305