370 lines
10 KiB
C
370 lines
10 KiB
C
/*-
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* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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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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#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/malloc.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/kbd/atkbdcreg.h>
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#include <isa/isareg.h>
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#include <isa/isavar.h>
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static MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device");
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/* children */
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typedef struct atkbdc_device {
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struct resource_list resources;
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int rid;
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u_int32_t vendorid;
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u_int32_t serial;
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u_int32_t logicalid;
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u_int32_t compatid;
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} atkbdc_device_t;
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/* kbdc */
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static devclass_t atkbdc_devclass;
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static int atkbdc_probe(device_t dev);
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static int atkbdc_attach(device_t dev);
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static device_t atkbdc_add_child(device_t bus, int order, char *name,
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int unit);
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static int atkbdc_print_child(device_t bus, device_t dev);
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static int atkbdc_read_ivar(device_t bus, device_t dev, int index,
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uintptr_t *val);
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static int atkbdc_write_ivar(device_t bus, device_t dev, int index,
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uintptr_t val);
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static struct resource_list
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*atkbdc_get_resource_list (device_t bus, device_t dev);
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static struct resource
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*atkbdc_alloc_resource(device_t bus, device_t dev, int type,
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int *rid, u_long start, u_long end,
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u_long count, u_int flags);
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static int atkbdc_release_resource(device_t bus, device_t dev, int type,
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int rid, struct resource *res);
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static device_method_t atkbdc_methods[] = {
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DEVMETHOD(device_probe, atkbdc_probe),
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DEVMETHOD(device_attach, atkbdc_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_add_child, atkbdc_add_child),
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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, atkbdc_alloc_resource),
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DEVMETHOD(bus_release_resource, atkbdc_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_driver = {
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ATKBDC_DRIVER_NAME,
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atkbdc_methods,
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sizeof(atkbdc_softc_t *),
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};
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static struct isa_pnp_id atkbdc_ids[] = {
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{ 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */
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{ 0 }
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};
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static int
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atkbdc_probe(device_t dev)
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{
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struct resource *port0;
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struct resource *port1;
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u_long start;
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u_long count;
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int error;
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int rid;
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/* check PnP IDs */
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if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO)
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return ENXIO;
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device_set_desc(dev, "Keyboard controller (i8042)");
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/*
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* Adjust I/O port resources.
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* The AT keyboard controller uses two ports (a command/data port
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* 0x60 and a status port 0x64), which may be given to us in
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* one resource (0x60 through 0x64) or as two separate resources
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* (0x60 and 0x64). Furthermore, /boot/device.hints may contain
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* just one port, 0x60. We shall adjust resource settings
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* so that these two ports are available as two separate resources.
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*/
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device_quiet(dev);
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rid = 0;
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if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0)
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return ENXIO;
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if (count > 1) /* adjust the count */
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bus_set_resource(dev, SYS_RES_IOPORT, rid, start, 1);
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port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
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if (port0 == NULL)
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return ENXIO;
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rid = 1;
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if (bus_get_resource(dev, SYS_RES_IOPORT, rid, NULL, NULL) != 0)
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bus_set_resource(dev, SYS_RES_IOPORT, 1,
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start + KBD_STATUS_PORT, 1);
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port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE);
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if (port1 == NULL) {
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bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
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return ENXIO;
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}
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device_verbose(dev);
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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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bus_generic_probe(dev);
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bus_release_resource(dev, SYS_RES_IOPORT, 0, port0);
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bus_release_resource(dev, SYS_RES_IOPORT, 1, port1);
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return error;
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}
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static int
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atkbdc_attach(device_t dev)
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{
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atkbdc_softc_t *sc;
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int unit;
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int error;
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int rid;
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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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}
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rid = 0;
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sc->port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
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RF_ACTIVE);
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if (sc->port0 == NULL)
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return ENXIO;
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rid = 1;
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sc->port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,
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RF_ACTIVE);
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if (sc->port1 == NULL) {
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bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
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return ENXIO;
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}
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error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1);
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if (error) {
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bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0);
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bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1);
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return error;
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}
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*(atkbdc_softc_t **)device_get_softc(dev) = sc;
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bus_generic_attach(dev);
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return 0;
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}
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static device_t
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atkbdc_add_child(device_t bus, int order, char *name, int unit)
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{
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atkbdc_device_t *ivar;
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device_t child;
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int t;
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ivar = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV,
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M_NOWAIT | M_ZERO);
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if (!ivar)
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return NULL;
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child = device_add_child_ordered(bus, order, name, unit);
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if (child == NULL) {
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free(ivar, M_ATKBDDEV);
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return child;
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}
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resource_list_init(&ivar->resources);
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ivar->rid = order;
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/*
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* If the device is not created by the PnP BIOS or ACPI,
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* refer to device hints for IRQ.
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*/
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if (ISA_PNP_PROBE(device_get_parent(bus), bus, atkbdc_ids) != 0) {
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if (resource_int_value(name, unit, "irq", &t) != 0)
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t = -1;
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} else {
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t = bus_get_resource_start(bus, SYS_RES_IRQ, ivar->rid);
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}
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if (t > 0)
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resource_list_add(&ivar->resources, SYS_RES_IRQ, ivar->rid,
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t, t, 1);
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if (resource_int_value(name, unit, "flags", &t) == 0)
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device_set_flags(child, t);
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if (resource_disabled(name, unit))
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device_disable(child);
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device_set_ivars(child, ivar);
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return child;
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}
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static int
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atkbdc_print_child(device_t bus, device_t dev)
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{
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atkbdc_device_t *kbdcdev;
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u_long irq;
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int flags;
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int retval = 0;
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kbdcdev = (atkbdc_device_t *)device_get_ivars(dev);
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retval += bus_print_child_header(bus, dev);
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flags = device_get_flags(dev);
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if (flags != 0)
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retval += printf(" flags 0x%x", flags);
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irq = bus_get_resource_start(dev, SYS_RES_IRQ, kbdcdev->rid);
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if (irq != 0)
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retval += printf(" irq %ld", irq);
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retval += bus_print_child_footer(bus, dev);
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return (retval);
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}
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static int
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atkbdc_read_ivar(device_t bus, device_t dev, int index, uintptr_t *val)
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{
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atkbdc_device_t *ivar;
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ivar = (atkbdc_device_t *)device_get_ivars(dev);
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switch (index) {
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case KBDC_IVAR_VENDORID:
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*val = (u_long)ivar->vendorid;
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break;
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case KBDC_IVAR_SERIAL:
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*val = (u_long)ivar->serial;
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break;
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case KBDC_IVAR_LOGICALID:
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*val = (u_long)ivar->logicalid;
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break;
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case KBDC_IVAR_COMPATID:
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*val = (u_long)ivar->compatid;
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break;
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default:
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return ENOENT;
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}
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return 0;
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}
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static int
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atkbdc_write_ivar(device_t bus, device_t dev, int index, uintptr_t val)
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{
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atkbdc_device_t *ivar;
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ivar = (atkbdc_device_t *)device_get_ivars(dev);
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switch (index) {
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case KBDC_IVAR_VENDORID:
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ivar->vendorid = (u_int32_t)val;
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break;
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case KBDC_IVAR_SERIAL:
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ivar->serial = (u_int32_t)val;
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break;
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case KBDC_IVAR_LOGICALID:
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ivar->logicalid = (u_int32_t)val;
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break;
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case KBDC_IVAR_COMPATID:
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ivar->compatid = (u_int32_t)val;
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break;
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default:
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return ENOENT;
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}
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return 0;
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}
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static struct resource_list
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*atkbdc_get_resource_list (device_t bus, device_t dev)
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{
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atkbdc_device_t *ivar;
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ivar = (atkbdc_device_t *)device_get_ivars(dev);
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return &ivar->resources;
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}
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static struct resource
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*atkbdc_alloc_resource(device_t bus, device_t dev, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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atkbdc_device_t *ivar;
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ivar = (atkbdc_device_t *)device_get_ivars(dev);
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return resource_list_alloc(&ivar->resources, bus, dev, type, rid,
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start, end, count, flags);
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}
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static int
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atkbdc_release_resource(device_t bus, device_t dev, int type, int rid,
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struct resource *res)
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{
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atkbdc_device_t *ivar;
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ivar = (atkbdc_device_t *)device_get_ivars(dev);
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return resource_list_release(&ivar->resources, bus, dev, type, rid,
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res);
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}
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DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0);
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DRIVER_MODULE(atkbdc, acpi, atkbdc_driver, atkbdc_devclass, 0, 0);
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