6a347d023b
Make different bus attachments for Altera and Terasice device drivers share the same devclass_t. Sponsored by: DARPA, AFRL
78 lines
2.9 KiB
C
78 lines
2.9 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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* $FreeBSD$
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*/
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#ifndef _DEV_TERASIC_DE4LED_H_
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#define _DEV_TERASIC_DE4LED_H_
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#define TERASIC_DE4LED_NUMLEDS 8
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struct terasic_de4led_softc {
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device_t tdl_dev;
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int tdl_unit;
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struct resource *tdl_res;
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int tdl_rid;
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struct mtx tdl_lock;
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uint8_t tdl_bits;
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struct cdev *tdl_leds[TERASIC_DE4LED_NUMLEDS];
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};
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#define TERASIC_DE4LED_LOCK(sc) mtx_lock(&(sc)->tdl_lock)
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#define TERASIC_DE4LED_LOCK_ASSERT(sc) mtx_assert(&(sc)->tdl_lock, MA_OWNED)
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#define TERASIC_DE4LED_LOCK_DESTROY(sc) mtx_destroy(&(sc)->tdl_lock)
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#define TERASIC_DE4LED_LOCK_INIT(sc) mtx_init(&(sc)->tdl_lock, \
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"terasic_de4led", NULL, MTX_DEF)
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#define TERASIC_DE4LED_UNLOCK(sc) mtx_unlock(&(sc)->tdl_lock)
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/*
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* Setting and clearing LEDs. tdl_bits is in the bit order preferred for I/O.
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* The LED elements are labelled 1..8 on the DE-4, so bit 0 is LED 1, and so
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* on.
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*/
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#define TERASIC_DE4LED_CLEARBAR(sc) do { \
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(sc)->tdl_bits = 0; \
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} while (0)
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#define TERASIC_DE4LED_SETLED(sc, led, onoff) do { \
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(sc)->tdl_bits &= ~(1 << (led)); \
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(sc)->tdl_bits |= ((onoff != 0) ? 1 : 0) << (led); \
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} while (0)
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/*
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* Only one offset matters for this device -- 0.
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*/
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#define TERASIC_DE4LED_OFF_LED 0
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void terasic_de4led_attach(struct terasic_de4led_softc *sc);
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void terasic_de4led_detach(struct terasic_de4led_softc *sc);
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extern devclass_t terasic_de4led_devclass;
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#endif /* _DEV_TERASIC_DE4LED_H_ */
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