9e9e5fa3d9
Reviewed by: marius
306 lines
9.4 KiB
C
306 lines
9.4 KiB
C
/*-
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* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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* Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
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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 as
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* the first lines of this file unmodified.
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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 AUTHORS ``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 AUTHORS 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 OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* from: FreeBSD: src/sys/isa/atkbdc_isa.c,v 1.31 2005/05/29 04:42:28 nyan
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_kbd.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/kbio.h>
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#include <sys/malloc.h>
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#include <dev/ofw/ofw_bus.h>
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#include <machine/resource.h>
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#include <machine/ver.h>
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#include <sys/rman.h>
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#include <dev/kbd/kbdreg.h>
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#include <dev/atkbdc/atkbdreg.h>
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#include <dev/atkbdc/atkbdc_subr.h>
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#include <dev/atkbdc/atkbdcreg.h>
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#include <dev/atkbdc/psm.h>
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static device_probe_t atkbdc_ebus_probe;
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static device_attach_t atkbdc_ebus_attach;
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static device_method_t atkbdc_ebus_methods[] = {
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DEVMETHOD(device_probe, atkbdc_ebus_probe),
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DEVMETHOD(device_attach, atkbdc_ebus_attach),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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DEVMETHOD(bus_print_child, atkbdc_print_child),
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DEVMETHOD(bus_read_ivar, atkbdc_read_ivar),
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DEVMETHOD(bus_write_ivar, atkbdc_write_ivar),
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DEVMETHOD(bus_get_resource_list,atkbdc_get_resource_list),
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DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
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DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
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DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource),
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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{ 0, 0 }
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};
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static driver_t atkbdc_ebus_driver = {
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ATKBDC_DRIVER_NAME,
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atkbdc_ebus_methods,
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sizeof(atkbdc_softc_t *),
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};
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DRIVER_MODULE(atkbdc, ebus, atkbdc_ebus_driver, atkbdc_devclass, 0, 0);
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static int
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atkbdc_ebus_probe(device_t dev)
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{
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struct resource *port0, *port1;
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rman_res_t count, start;
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int error, rid;
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if (strcmp(ofw_bus_get_name(dev), "8042") != 0)
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return (ENXIO);
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/*
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* On AXi and AXmp boards the NS16550 (used to connect keyboard/
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* mouse) share their IRQ lines with the i8042. Any IRQ activity
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* (typically during attach) of the NS16550 used to connect the
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* keyboard when actually the PS/2 keyboard is selected in OFW
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* causes interaction with the OBP i8042 driver resulting in a
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* hang and vice versa. As RS232 keyboards and mice obviously
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* aren't meant to be used in parallel with PS/2 ones on these
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* boards don't attach to the i8042 in case the PS/2 keyboard
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* isn't selected in order to prevent such hangs.
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* Note that it's not sufficient here to rely on the '8042' node
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* only showing up when a PS/2 keyboard is actually connected as
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* the user still might have adjusted the 'keyboard' alias to
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* point to the RS232 keyboard.
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*/
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if ((!strcmp(sparc64_model, "SUNW,UltraAX-MP") ||
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!strcmp(sparc64_model, "SUNW,UltraSPARC-IIi-Engine")) &&
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OF_finddevice("keyboard") != ofw_bus_get_node(dev)) {
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device_disable(dev);
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return (ENXIO);
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}
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device_set_desc(dev, "Keyboard controller (i8042)");
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/*
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* The '8042' node has two identical 8 addresses wide resources
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* which are apparently meant to be used one for the keyboard
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* half and the other one for the mouse half. To simplify matters
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* we use one for the command/data port resource and the other
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* one for the status port resource as the atkbdc(4) back-end
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* expects two struct resource rather than two bus space handles.
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*/
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rid = 0;
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if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
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device_printf(dev,
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"cannot determine command/data port resource\n");
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return (ENXIO);
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}
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port0 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start, 1,
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RF_ACTIVE);
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if (port0 == NULL) {
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device_printf(dev,
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"cannot allocate command/data port resource\n");
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return (ENXIO);
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}
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rid = 1;
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if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
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device_printf(dev, "cannot determine status port resource\n");
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error = ENXIO;
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goto fail_port0;
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}
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start += KBD_STATUS_PORT;
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port1 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start, 1,
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RF_ACTIVE);
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if (port1 == NULL) {
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device_printf(dev, "cannot allocate status port resource\n");
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error = ENXIO;
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goto fail_port0;
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}
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error = atkbdc_probe_unit(device_get_unit(dev), port0, port1);
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if (error != 0)
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device_printf(dev, "atkbdc_porbe_unit failed\n");
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bus_release_resource(dev, SYS_RES_MEMORY, 1, port1);
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fail_port0:
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bus_release_resource(dev, SYS_RES_MEMORY, 0, port0);
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return (error);
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}
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static int
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atkbdc_ebus_attach(device_t dev)
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{
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atkbdc_softc_t *sc;
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atkbdc_device_t *adi;
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device_t cdev;
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phandle_t child;
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rman_res_t count, intr, start;
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int children, error, rid, unit;
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char *cname, *dname;
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unit = device_get_unit(dev);
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sc = *(atkbdc_softc_t **)device_get_softc(dev);
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if (sc == NULL) {
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/*
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* We have to maintain two copies of the kbdc_softc struct,
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* as the low-level console needs to have access to the
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* keyboard controller before kbdc is probed and attached.
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* kbdc_soft[] contains the default entry for that purpose.
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* See atkbdc.c. XXX
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*/
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sc = atkbdc_get_softc(unit);
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if (sc == NULL)
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return (ENOMEM);
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device_set_softc(dev, sc);
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}
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rid = 0;
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if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
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device_printf(dev,
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"cannot determine command/data port resource\n");
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return (ENXIO);
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}
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sc->retry = 5000;
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sc->port0 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start,
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1, RF_ACTIVE);
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if (sc->port0 == NULL) {
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device_printf(dev,
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"cannot allocate command/data port resource\n");
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return (ENXIO);
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}
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rid = 1;
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if (bus_get_resource(dev, SYS_RES_MEMORY, rid, &start, &count) != 0) {
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device_printf(dev, "cannot determine status port resource\n");
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error = ENXIO;
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goto fail_port0;
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}
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start += KBD_STATUS_PORT;
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sc->port1 = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, start, start,
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1, RF_ACTIVE);
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if (sc->port1 == NULL) {
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device_printf(dev, "cannot allocate status port resource\n");
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error = ENXIO;
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goto fail_port0;
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}
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error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
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if (error != 0) {
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device_printf(dev, "atkbdc_attach_unit failed\n");
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goto fail_port1;
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}
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/* Attach children. */
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children = 0;
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for (child = OF_child(ofw_bus_get_node(dev)); child != 0;
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child = OF_peer(child)) {
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if ((OF_getprop_alloc(child, "name", 1, (void **)&cname)) == -1)
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continue;
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if (children >= 2) {
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device_printf(dev,
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"<%s>: only two children per 8042 supported\n",
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cname);
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OF_prop_free(cname);
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continue;
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}
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adi = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
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M_NOWAIT | M_ZERO);
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if (adi == NULL) {
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device_printf(dev, "<%s>: malloc failed\n", cname);
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OF_prop_free(cname);
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continue;
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}
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if (strcmp(cname, "kb_ps2") == 0) {
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adi->rid = KBDC_RID_KBD;
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dname = ATKBD_DRIVER_NAME;
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} else if (strcmp(cname, "kdmouse") == 0) {
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adi->rid = KBDC_RID_AUX;
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dname = PSM_DRIVER_NAME;
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} else {
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device_printf(dev, "<%s>: unknown device\n", cname);
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free(adi, M_ATKBDDEV);
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OF_prop_free(cname);
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continue;
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}
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intr = bus_get_resource_start(dev, SYS_RES_IRQ, adi->rid);
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if (intr == 0) {
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device_printf(dev,
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"<%s>: cannot determine interrupt resource\n",
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cname);
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free(adi, M_ATKBDDEV);
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OF_prop_free(cname);
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continue;
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}
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resource_list_init(&adi->resources);
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resource_list_add(&adi->resources, SYS_RES_IRQ, adi->rid,
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intr, intr, 1);
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if ((cdev = device_add_child(dev, dname, -1)) == NULL) {
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device_printf(dev, "<%s>: device_add_child failed\n",
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cname);
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resource_list_free(&adi->resources);
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free(adi, M_ATKBDDEV);
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OF_prop_free(cname);
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continue;
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}
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device_set_ivars(cdev, adi);
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children++;
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}
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error = bus_generic_attach(dev);
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if (error != 0) {
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device_printf(dev, "bus_generic_attach failed\n");
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goto fail_port1;
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}
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return (0);
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fail_port1:
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bus_release_resource(dev, SYS_RES_MEMORY, 1, sc->port1);
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fail_port0:
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bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->port0);
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return (error);
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}
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