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/*-
* Copyright (c) 2012 Robert N. M. Watson
* All rights reserved.
*
* This software was developed by SRI International and the University of
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
* ("CTSRD"), as part of the DARPA CRASH research programme.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 <sys/param.h>
#include <sys/bus.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <dev/led/led.h>
#include <dev/terasic/de4led/terasic_de4led.h>
devclass_t terasic_de4led_devclass;
static void
terasic_de4led_update(struct terasic_de4led_softc *sc)
{
TERASIC_DE4LED_LOCK_ASSERT(sc);
bus_write_1(sc->tdl_res, TERASIC_DE4LED_OFF_LED, sc->tdl_bits);
}
static void
led_update(struct terasic_de4led_softc *sc, int bit, int onoff)
{
TERASIC_DE4LED_LOCK(sc);
TERASIC_DE4LED_SETLED(sc, bit, onoff);
terasic_de4led_update(sc);
TERASIC_DE4LED_UNLOCK(sc);
}
static void
led_0(void *arg, int onoff)
{
led_update(arg, 0, onoff);
}
static void
led_1(void *arg, int onoff)
{
led_update(arg, 1, onoff);
}
static void
led_2(void *arg, int onoff)
{
led_update(arg, 2, onoff);
}
static void
led_3(void *arg, int onoff)
{
led_update(arg, 3, onoff);
}
static void
led_4(void *arg, int onoff)
{
led_update(arg, 4, onoff);
}
static void
led_5(void *arg, int onoff)
{
led_update(arg, 5, onoff);
}
static void
led_6(void *arg, int onoff)
{
led_update(arg, 6, onoff);
}
static void
led_7(void *arg, int onoff)
{
led_update(arg, 7, onoff);
}
void
terasic_de4led_attach(struct terasic_de4led_softc *sc)
{
const char *cmd;
TERASIC_DE4LED_LOCK_INIT(sc);
/*
* Clear the LED array before we start.
*/
TERASIC_DE4LED_LOCK(sc);
TERASIC_DE4LED_CLEARBAR(sc);
terasic_de4led_update(sc);
TERASIC_DE4LED_UNLOCK(sc);
/*
* Register the LED array with led(4).
*/
sc->tdl_leds[0] = led_create(led_0, sc, "de4led_0");
sc->tdl_leds[1] = led_create(led_1, sc, "de4led_1");
sc->tdl_leds[2] = led_create(led_2, sc, "de4led_2");
sc->tdl_leds[3] = led_create(led_3, sc, "de4led_3");
sc->tdl_leds[4] = led_create(led_4, sc, "de4led_4");
sc->tdl_leds[5] = led_create(led_5, sc, "de4led_5");
sc->tdl_leds[6] = led_create(led_6, sc, "de4led_6");
sc->tdl_leds[7] = led_create(led_7, sc, "de4led_7");
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_0_cmd", &cmd) == 0)
led_set("de4led_0", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_1_cmd", &cmd) == 0)
led_set("de4led_1", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_2_cmd", &cmd) == 0)
led_set("de4led_2", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_3_cmd", &cmd) == 0)
led_set("de4led_3", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_4_cmd", &cmd) == 0)
led_set("de4led_4", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_5_cmd", &cmd) == 0)
led_set("de4led_5", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_6_cmd", &cmd) == 0)
led_set("de4led_6", cmd);
if (resource_string_value(device_get_name(sc->tdl_dev),
sc->tdl_unit, "de4led_7_cmd", &cmd) == 0)
led_set("de4led_7", cmd);
}
void
terasic_de4led_detach(struct terasic_de4led_softc *sc)
{
int i;
for (i = 0; i < 8; i++) {
led_destroy(sc->tdl_leds[i]);
sc->tdl_leds[i] = NULL;
}
TERASIC_DE4LED_LOCK(sc);
TERASIC_DE4LED_CLEARBAR(sc);
terasic_de4led_update(sc);
TERASIC_DE4LED_UNLOCK(sc);
TERASIC_DE4LED_LOCK_DESTROY(sc);
}
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