freebsd-dev/sys/dev/atkbdc/atkbd_atkbdc.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

178 lines
4.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* 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 as
* the first lines of this file unmodified.
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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>
__FBSDID("$FreeBSD$");
#include "opt_kbd.h"
#include "opt_evdev.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sys/kbio.h>
#include <dev/kbd/kbdreg.h>
#include <dev/atkbdc/atkbdreg.h>
#include <dev/atkbdc/atkbdcreg.h>
typedef struct {
struct resource *intr;
void *ih;
} atkbd_softc_t;
static devclass_t atkbd_devclass;
static void atkbdidentify(driver_t *driver, device_t dev);
static int atkbdprobe(device_t dev);
static int atkbdattach(device_t dev);
static int atkbdresume(device_t dev);
static void atkbdintr(void *arg);
static device_method_t atkbd_methods[] = {
DEVMETHOD(device_identify, atkbdidentify),
DEVMETHOD(device_probe, atkbdprobe),
DEVMETHOD(device_attach, atkbdattach),
DEVMETHOD(device_resume, atkbdresume),
{ 0, 0 }
};
static driver_t atkbd_driver = {
ATKBD_DRIVER_NAME,
atkbd_methods,
sizeof(atkbd_softc_t),
};
static void
atkbdidentify(driver_t *driver, device_t parent)
{
/* always add at least one child */
BUS_ADD_CHILD(parent, KBDC_RID_KBD, driver->name, device_get_unit(parent));
}
static int
atkbdprobe(device_t dev)
{
struct resource *res;
u_long irq;
int flags;
int rid;
device_set_desc(dev, "AT Keyboard");
/* obtain parameters */
flags = device_get_flags(dev);
/* see if IRQ is available */
rid = KBDC_RID_KBD;
res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (res == NULL) {
if (bootverbose)
device_printf(dev, "unable to allocate IRQ\n");
return ENXIO;
}
irq = rman_get_start(res);
bus_release_resource(dev, SYS_RES_IRQ, rid, res);
/* probe the device */
return atkbd_probe_unit(dev, irq, flags);
}
static int
atkbdattach(device_t dev)
{
atkbd_softc_t *sc;
keyboard_t *kbd;
u_long irq;
int flags;
int rid;
int error;
sc = device_get_softc(dev);
rid = KBDC_RID_KBD;
irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid);
flags = device_get_flags(dev);
error = atkbd_attach_unit(dev, &kbd, irq, flags);
if (error)
return error;
/* declare our interrupt handler */
sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (sc->intr == NULL)
return ENXIO;
error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, NULL, atkbdintr,
kbd, &sc->ih);
if (error)
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr);
return error;
}
static int
atkbdresume(device_t dev)
{
atkbd_softc_t *sc;
keyboard_t *kbd;
int args[2];
sc = device_get_softc(dev);
kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME,
device_get_unit(dev)));
if (kbd) {
kbd->kb_flags &= ~KB_INITIALIZED;
args[0] = device_get_unit(device_get_parent(dev));
args[1] = rman_get_start(sc->intr);
kbdd_init(kbd, device_get_unit(dev), &kbd, args,
device_get_flags(dev));
kbdd_clear_state(kbd);
}
return 0;
}
static void
atkbdintr(void *arg)
{
keyboard_t *kbd;
kbd = (keyboard_t *)arg;
kbdd_intr(kbd, NULL);
}
DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0);
#ifdef EVDEV_SUPPORT
MODULE_DEPEND(atkbd, evdev, 1, 1, 1);
#endif