6a347d023b
Make different bus attachments for Altera and Terasice device drivers share the same devclass_t. Sponsored by: DARPA, AFRL
191 lines
4.9 KiB
C
191 lines
4.9 KiB
C
/*-
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* Copyright (c) 2012 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* 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 <sys/param.h>
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#include <sys/bus.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <dev/led/led.h>
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#include <dev/terasic/de4led/terasic_de4led.h>
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devclass_t terasic_de4led_devclass;
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static void
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terasic_de4led_update(struct terasic_de4led_softc *sc)
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{
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TERASIC_DE4LED_LOCK_ASSERT(sc);
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bus_write_1(sc->tdl_res, TERASIC_DE4LED_OFF_LED, sc->tdl_bits);
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}
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static void
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led_update(struct terasic_de4led_softc *sc, int bit, int onoff)
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{
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TERASIC_DE4LED_LOCK(sc);
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TERASIC_DE4LED_SETLED(sc, bit, onoff);
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terasic_de4led_update(sc);
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TERASIC_DE4LED_UNLOCK(sc);
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}
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static void
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led_0(void *arg, int onoff)
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{
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led_update(arg, 0, onoff);
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}
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static void
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led_1(void *arg, int onoff)
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{
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led_update(arg, 1, onoff);
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}
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static void
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led_2(void *arg, int onoff)
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{
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led_update(arg, 2, onoff);
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}
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static void
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led_3(void *arg, int onoff)
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{
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led_update(arg, 3, onoff);
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}
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static void
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led_4(void *arg, int onoff)
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{
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led_update(arg, 4, onoff);
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}
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static void
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led_5(void *arg, int onoff)
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{
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led_update(arg, 5, onoff);
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}
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static void
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led_6(void *arg, int onoff)
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{
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led_update(arg, 6, onoff);
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}
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static void
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led_7(void *arg, int onoff)
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{
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led_update(arg, 7, onoff);
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}
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void
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terasic_de4led_attach(struct terasic_de4led_softc *sc)
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{
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const char *cmd;
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TERASIC_DE4LED_LOCK_INIT(sc);
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/*
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* Clear the LED array before we start.
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*/
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TERASIC_DE4LED_LOCK(sc);
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TERASIC_DE4LED_CLEARBAR(sc);
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terasic_de4led_update(sc);
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TERASIC_DE4LED_UNLOCK(sc);
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/*
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* Register the LED array with led(4).
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*/
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sc->tdl_leds[0] = led_create(led_0, sc, "de4led_0");
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sc->tdl_leds[1] = led_create(led_1, sc, "de4led_1");
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sc->tdl_leds[2] = led_create(led_2, sc, "de4led_2");
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sc->tdl_leds[3] = led_create(led_3, sc, "de4led_3");
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sc->tdl_leds[4] = led_create(led_4, sc, "de4led_4");
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sc->tdl_leds[5] = led_create(led_5, sc, "de4led_5");
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sc->tdl_leds[6] = led_create(led_6, sc, "de4led_6");
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sc->tdl_leds[7] = led_create(led_7, sc, "de4led_7");
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_0_cmd", &cmd) == 0)
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led_set("de4led_0", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_1_cmd", &cmd) == 0)
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led_set("de4led_1", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_2_cmd", &cmd) == 0)
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led_set("de4led_2", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_3_cmd", &cmd) == 0)
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led_set("de4led_3", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_4_cmd", &cmd) == 0)
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led_set("de4led_4", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_5_cmd", &cmd) == 0)
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led_set("de4led_5", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_6_cmd", &cmd) == 0)
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led_set("de4led_6", cmd);
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if (resource_string_value(device_get_name(sc->tdl_dev),
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sc->tdl_unit, "de4led_7_cmd", &cmd) == 0)
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led_set("de4led_7", cmd);
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}
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void
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terasic_de4led_detach(struct terasic_de4led_softc *sc)
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{
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int i;
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for (i = 0; i < 8; i++) {
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led_destroy(sc->tdl_leds[i]);
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sc->tdl_leds[i] = NULL;
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}
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TERASIC_DE4LED_LOCK(sc);
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TERASIC_DE4LED_CLEARBAR(sc);
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terasic_de4led_update(sc);
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TERASIC_DE4LED_UNLOCK(sc);
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TERASIC_DE4LED_LOCK_DESTROY(sc);
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}
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