NetBSD-5.0.2/sys/arch/macppc/dev/adb.c
/* $NetBSD: adb.c,v 1.24 2007/11/07 19:47:00 garbled Exp $ */
/*-
* Copyright (C) 1994 Bradley A. Grantham
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bradley A. Grantham.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: adb.c,v 1.24 2007/11/07 19:47:00 garbled Exp $");
#include <sys/param.h>
#include <sys/device.h>
#include <sys/fcntl.h>
#include <sys/poll.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/signalvar.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/pio.h>
#include <macppc/dev/adbvar.h>
#include <macppc/dev/akbdvar.h>
#include <macppc/dev/pm_direct.h>
#include <macppc/dev/viareg.h>
#include <dev/clock_subr.h>
#include <dev/ofw/openfirm.h>
#include "aed.h"
#include "apm.h"
/*
* Function declarations.
*/
static int adbmatch __P((struct device *, struct cfdata *, void *));
static void adbattach __P((struct device *, struct device *, void *));
static int adbprint __P((void *, const char *));
static void adb_todr_init(void);
/*
* Global variables.
*/
int adb_polling = 0; /* Are we polling? (Debugger mode) */
int adb_initted = 0; /* adb_init() has completed successfully */
#ifdef ADB_DEBUG
int adb_debug = 0; /* Output debugging messages */
#endif /* ADB_DEBUG */
/*
* Driver definition.
*/
CFATTACH_DECL(adb, sizeof(struct adb_softc),
adbmatch, adbattach, NULL, NULL);
static int
adbmatch(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct confargs *ca = aux;
if (ca->ca_nreg < 8)
return 0;
if (ca->ca_nintr < 4)
return 0;
if (strcmp(ca->ca_name, "via-cuda") == 0)
return 1;
if (strcmp(ca->ca_name, "via-pmu") == 0)
return 1;
return 0;
}
static void
adbattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct adb_softc *sc = (struct adb_softc *)self;
struct confargs *ca = aux;
int irq = ca->ca_intr[0];
int node;
ADBDataBlock adbdata;
struct adb_attach_args aa_args;
int totaladbs;
int adbindex, adbaddr, adb_node;
extern volatile u_char *Via1Base;
ca->ca_reg[0] += ca->ca_baseaddr;
sc->sc_regbase = mapiodev(ca->ca_reg[0], ca->ca_reg[1]);
Via1Base = sc->sc_regbase;
if (strcmp(ca->ca_name, "via-cuda") == 0)
adbHardware = ADB_HW_CUDA;
else if (strcmp(ca->ca_name, "via-pmu") == 0)
adbHardware = ADB_HW_PMU;
node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1");
if (node)
OF_getprop(node, "interrupts", &irq, 4);
printf(" irq %d: ", irq);
adb_polling = 1;
adb_node = of_getnode_byname(ca->ca_node, "adb");
if (adb_node)
ADBReInit();
switch (adbHardware) {
case ADB_HW_CUDA:
intr_establish(irq, IST_LEVEL, IPL_TTY, adb_intr_cuda, sc);
break;
case ADB_HW_PMU:
intr_establish(irq, IST_LEVEL, IPL_TTY, pm_intr, sc);
pm_init();
break;
}
adb_todr_init();
#if NAPM > 0
/* Magic for signalling the apm driver to match. */
aa_args.origaddr = ADBADDR_APM;
aa_args.adbaddr = ADBADDR_APM;
aa_args.handler_id = ADBADDR_APM;
(void)config_found(self, &aa_args, NULL);
#endif
/*
* see if we're supposed to have an ADB bus
* since some PowerBooks don't have one and their PMUs barf on ADB
* commands we bail here if there's no adb node
*/
if (!adb_node)
return;
#ifdef ADB_DEBUG
if (adb_debug)
printf("adb: done with ADBReInit\n");
#endif
totaladbs = CountADBs();
printf("%d targets\n", totaladbs);
#if NAED > 0
/* ADB event device for compatibility */
aa_args.origaddr = 0;
aa_args.adbaddr = 0;
aa_args.handler_id = 0;
(void)config_found(self, &aa_args, adbprint);
#endif
/* for each ADB device */
for (adbindex = 1; adbindex <= totaladbs; adbindex++) {
/* Get the ADB information */
adbaddr = GetIndADB(&adbdata, adbindex);
aa_args.origaddr = adbdata.origADBAddr;
aa_args.adbaddr = adbaddr;
aa_args.handler_id = adbdata.devType;
(void)config_found(self, &aa_args, adbprint);
}
if (adbHardware == ADB_HW_CUDA)
adb_cuda_autopoll();
adb_polling = 0;
}
int
adbprint(args, name)
void *args;
const char *name;
{
struct adb_attach_args *aa_args = (struct adb_attach_args *)args;
int rv = UNCONF;
if (name) { /* no configured device matched */
rv = UNSUPP; /* most ADB device types are unsupported */
/* print out what kind of ADB device we have found */
aprint_normal("%s addr %d: ", name, aa_args->adbaddr);
switch(aa_args->origaddr) {
#ifdef DIAGNOSTIC
case 0:
aprint_normal("ADB event device");
rv = UNCONF;
break;
case ADBADDR_SECURE:
aprint_normal("security dongle (%d)",
aa_args->handler_id);
break;
#endif
case ADBADDR_MAP:
aprint_normal("mapped device (%d)",
aa_args->handler_id);
rv = UNCONF;
break;
case ADBADDR_REL:
aprint_normal("relative positioning device (%d)",
aa_args->handler_id);
rv = UNCONF;
break;
#ifdef DIAGNOSTIC
case ADBADDR_ABS:
switch (aa_args->handler_id) {
case ADB_ARTPAD:
aprint_normal("WACOM ArtPad II");
break;
default:
aprint_normal("absolute positioning device (%d)",
aa_args->handler_id);
break;
}
break;
case ADBADDR_DATATX:
aprint_normal("data transfer device (modem?) (%d)",
aa_args->handler_id);
break;
case ADBADDR_MISC:
switch (aa_args->handler_id) {
case ADB_POWERKEY:
aprint_normal("Sophisticated Circuits PowerKey");
break;
default:
aprint_normal("misc. device (remote control?) (%d)",
aa_args->handler_id);
break;
}
break;
default:
aprint_normal("unknown type device, (handler %d)",
aa_args->handler_id);
break;
#endif /* DIAGNOSTIC */
}
} else /* a device matched and was configured */
aprint_normal(" addr %d: ", aa_args->adbaddr);
return rv;
}
#define DIFF19041970 2082844800
static int
adb_todr_get(todr_chip_handle_t tch, volatile struct timeval *tvp)
{
unsigned long sec;
if (adb_read_date_time(&sec) != 0)
return EIO;
tvp->tv_sec = sec - DIFF19041970;
tvp->tv_usec = 0;
return 0;
}
static int
adb_todr_set(todr_chip_handle_t tch, volatile struct timeval *tvp)
{
unsigned long sec;
sec = tvp->tv_sec + DIFF19041970;
return adb_set_date_time(sec) ? EIO : 0;
}
void
adb_todr_init(void)
{
static struct todr_chip_handle tch = {
.todr_gettime = adb_todr_get,
.todr_settime = adb_todr_set
};
todr_attach(&tch);
}