2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2012 Robert N. M. Watson
7 * This software was developed by SRI International and the University of
8 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
9 * ("CTSRD"), as part of the DARPA CRASH research programme.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #ifndef _DEV_TERASIC_DE4LED_H_
36 #define _DEV_TERASIC_DE4LED_H_
38 #define TERASIC_DE4LED_NUMLEDS 8
39 struct terasic_de4led_softc {
42 struct resource *tdl_res;
46 struct cdev *tdl_leds[TERASIC_DE4LED_NUMLEDS];
49 #define TERASIC_DE4LED_LOCK(sc) mtx_lock(&(sc)->tdl_lock)
50 #define TERASIC_DE4LED_LOCK_ASSERT(sc) mtx_assert(&(sc)->tdl_lock, MA_OWNED)
51 #define TERASIC_DE4LED_LOCK_DESTROY(sc) mtx_destroy(&(sc)->tdl_lock)
52 #define TERASIC_DE4LED_LOCK_INIT(sc) mtx_init(&(sc)->tdl_lock, \
53 "terasic_de4led", NULL, MTX_DEF)
54 #define TERASIC_DE4LED_UNLOCK(sc) mtx_unlock(&(sc)->tdl_lock)
57 * Setting and clearing LEDs. tdl_bits is in the bit order preferred for I/O.
58 * The LED elements are labelled 1..8 on the DE-4, so bit 0 is LED 1, and so
61 #define TERASIC_DE4LED_CLEARBAR(sc) do { \
64 #define TERASIC_DE4LED_SETLED(sc, led, onoff) do { \
65 (sc)->tdl_bits &= ~(1 << (led)); \
66 (sc)->tdl_bits |= ((onoff != 0) ? 1 : 0) << (led); \
70 * Only one offset matters for this device -- 0.
72 #define TERASIC_DE4LED_OFF_LED 0
74 void terasic_de4led_attach(struct terasic_de4led_softc *sc);
75 void terasic_de4led_detach(struct terasic_de4led_softc *sc);
77 extern devclass_t terasic_de4led_devclass;
79 #endif /* _DEV_TERASIC_DE4LED_H_ */