300 lines
7.2 KiB
C
300 lines
7.2 KiB
C
/* $NetBSD: adb.c,v 1.34 2012/10/27 17:18:00 chs Exp $ */
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/*-
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* Copyright (C) 1994 Bradley A. Grantham
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: adb.c,v 1.34 2012/10/27 17:18:00 chs Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/fcntl.h>
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#include <sys/poll.h>
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#include <sys/select.h>
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#include <sys/proc.h>
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#include <sys/signalvar.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <machine/autoconf.h>
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#include <machine/pio.h>
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#include <macppc/dev/adbvar.h>
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#include <macppc/dev/akbdvar.h>
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#include <macppc/dev/pm_direct.h>
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#include <macppc/dev/viareg.h>
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#include <dev/clock_subr.h>
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#include <dev/ofw/openfirm.h>
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#include "aed.h"
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#include "apm.h"
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/*
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* Function declarations.
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*/
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static int adbmatch(device_t, cfdata_t, void *);
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static void adbattach(device_t, device_t, void *);
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static int adbprint(void *, const char *);
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static void adb_todr_init(void);
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/*
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* Global variables.
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*/
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int adb_polling = 0; /* Are we polling? (Debugger mode) */
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int adb_initted = 0; /* adb_init() has completed successfully */
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#ifdef ADB_DEBUG
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int adb_debug = 0; /* Output debugging messages */
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#endif /* ADB_DEBUG */
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/*
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* Driver definition.
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*/
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CFATTACH_DECL_NEW(adb, sizeof(struct adb_softc),
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adbmatch, adbattach, NULL, NULL);
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static int
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adbmatch(device_t parent, cfdata_t cf, void *aux)
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{
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struct confargs *ca = aux;
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if (ca->ca_nreg < 8)
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return 0;
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if (ca->ca_nintr < 4)
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return 0;
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if (strcmp(ca->ca_name, "via-cuda") == 0)
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return 1;
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if (strcmp(ca->ca_name, "via-pmu") == 0)
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return 1;
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return 0;
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}
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static void
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adbattach(device_t parent, device_t self, void *aux)
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{
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struct adb_softc *sc = device_private(self);
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struct confargs *ca = aux;
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int irq = ca->ca_intr[0];
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int node;
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ADBDataBlock adbdata;
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struct adb_attach_args aa_args;
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int totaladbs;
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int adbindex, adbaddr, adb_node;
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extern volatile uint8_t *Via1Base;
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ca->ca_reg[0] += ca->ca_baseaddr;
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sc->sc_regbase = mapiodev(ca->ca_reg[0], ca->ca_reg[1], false);
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Via1Base = sc->sc_regbase;
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if (strcmp(ca->ca_name, "via-cuda") == 0)
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adbHardware = ADB_HW_CUDA;
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else if (strcmp(ca->ca_name, "via-pmu") == 0)
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adbHardware = ADB_HW_PMU;
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node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1");
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if (node)
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OF_getprop(node, "interrupts", &irq, 4);
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printf(" irq %d: ", irq);
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adb_polling = 1;
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adb_node = of_getnode_byname(ca->ca_node, "adb");
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if (adb_node)
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ADBReInit();
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switch (adbHardware) {
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case ADB_HW_CUDA:
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intr_establish(irq, IST_LEVEL, IPL_TTY, adb_intr_cuda, sc);
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break;
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case ADB_HW_PMU:
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intr_establish(irq, IST_LEVEL, IPL_TTY, pm_intr, sc);
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pm_init();
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break;
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}
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adb_todr_init();
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#if NAPM > 0
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/* Magic for signalling the apm driver to match. */
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aa_args.origaddr = ADBADDR_APM;
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aa_args.adbaddr = ADBADDR_APM;
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aa_args.handler_id = ADBADDR_APM;
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(void)config_found(self, &aa_args, NULL);
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#endif
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/*
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* see if we're supposed to have an ADB bus
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* since some PowerBooks don't have one and their PMUs barf on ADB
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* commands we bail here if there's no adb node
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*/
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if (!adb_node)
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return;
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#ifdef ADB_DEBUG
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if (adb_debug)
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printf("adb: done with ADBReInit\n");
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#endif
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totaladbs = CountADBs();
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printf("%d targets\n", totaladbs);
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#if NAED > 0
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/* ADB event device for compatibility */
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aa_args.origaddr = 0;
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aa_args.adbaddr = 0;
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aa_args.handler_id = 0;
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(void)config_found(self, &aa_args, adbprint);
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#endif
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/* for each ADB device */
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for (adbindex = 1; adbindex <= totaladbs; adbindex++) {
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/* Get the ADB information */
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adbaddr = GetIndADB(&adbdata, adbindex);
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aa_args.origaddr = adbdata.origADBAddr;
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aa_args.adbaddr = adbaddr;
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aa_args.handler_id = adbdata.devType;
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(void)config_found(self, &aa_args, adbprint);
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}
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if (adbHardware == ADB_HW_CUDA)
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adb_cuda_autopoll();
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adb_polling = 0;
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}
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int
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adbprint(void *args, const char *name)
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{
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struct adb_attach_args *aa_args = (struct adb_attach_args *)args;
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int rv = UNCONF;
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if (name) { /* no configured device matched */
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rv = UNSUPP; /* most ADB device types are unsupported */
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/* print out what kind of ADB device we have found */
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aprint_normal("%s addr %d: ", name, aa_args->adbaddr);
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switch(aa_args->origaddr) {
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#ifdef DIAGNOSTIC
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case 0:
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aprint_normal("ADB event device");
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rv = UNCONF;
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break;
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case ADBADDR_SECURE:
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aprint_normal("security dongle (%d)",
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aa_args->handler_id);
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break;
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#endif
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case ADBADDR_MAP:
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aprint_normal("mapped device (%d)",
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aa_args->handler_id);
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rv = UNCONF;
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break;
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case ADBADDR_REL:
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aprint_normal("relative positioning device (%d)",
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aa_args->handler_id);
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rv = UNCONF;
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break;
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#ifdef DIAGNOSTIC
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case ADBADDR_ABS:
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switch (aa_args->handler_id) {
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case ADB_ARTPAD:
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aprint_normal("WACOM ArtPad II");
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break;
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default:
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aprint_normal("absolute positioning device (%d)",
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aa_args->handler_id);
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break;
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}
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break;
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case ADBADDR_DATATX:
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aprint_normal("data transfer device (modem?) (%d)",
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aa_args->handler_id);
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break;
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case ADBADDR_MISC:
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switch (aa_args->handler_id) {
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case ADB_POWERKEY:
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aprint_normal("Sophisticated Circuits PowerKey");
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break;
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default:
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aprint_normal("misc. device (remote control?) (%d)",
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aa_args->handler_id);
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break;
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}
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break;
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default:
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aprint_normal("unknown type device, (handler %d)",
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aa_args->handler_id);
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break;
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#endif /* DIAGNOSTIC */
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}
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} else /* a device matched and was configured */
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aprint_normal(" addr %d: ", aa_args->adbaddr);
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return rv;
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}
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#define DIFF19041970 2082844800
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static int
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adb_todr_get(todr_chip_handle_t tch, struct timeval *tvp)
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{
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unsigned long sec;
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if (adb_read_date_time(&sec) != 0)
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return EIO;
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tvp->tv_sec = sec - DIFF19041970;
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tvp->tv_usec = 0;
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return 0;
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}
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static int
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adb_todr_set(todr_chip_handle_t tch, struct timeval *tvp)
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{
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unsigned long sec;
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sec = tvp->tv_sec + DIFF19041970;
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return adb_set_date_time(sec) ? EIO : 0;
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}
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void
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adb_todr_init(void)
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{
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static struct todr_chip_handle tch = {
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.todr_gettime = adb_todr_get,
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.todr_settime = adb_todr_set
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};
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todr_attach(&tch);
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}
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