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014d7082a2
Unlike amd64's, this RTC is implemented entirely in userspace. This is the same RTC as is provided by QEMU's virt machine. Reviewed by: jhb MFC after: 2 weeks Obtained from: CheriBSD
41 lines
1.8 KiB
C
41 lines
1.8 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2024 Jessica Clarke <jrtc27@FreeBSD.org>
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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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#ifndef _RTC_PL031_H_
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#define _RTC_PL031_H_
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struct rtc_pl031_softc;
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typedef void (*rtc_pl031_intr_func_t)(void *arg);
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struct rtc_pl031_softc *rtc_pl031_init(rtc_pl031_intr_func_t intr_assert,
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rtc_pl031_intr_func_t intr_deassert, void *arg);
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void rtc_pl031_write(struct rtc_pl031_softc *sc, int offset,
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uint32_t value);
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uint32_t rtc_pl031_read(struct rtc_pl031_softc *sc, int offset);
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#endif /* _RTC_PL031_H_ */
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