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[PATCH 2/5] hv: add register definition of mc146818 RTC
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Zhao, Yuanyuan
Add register definition of mc146818 RTC for hv.
Signed-off-by: Yuanyuan Zhao <yuanyuan.zhao@...> --- hypervisor/include/dm/mc146818rtc.h | 91 +++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 hypervisor/include/dm/mc146818rtc.h diff --git a/hypervisor/include/dm/mc146818rtc.h b/hypervisor/include/dm/mc146818rtc.h new file mode 100644 index 000000000..d559fa532 --- /dev/null +++ b/hypervisor/include/dm/mc146818rtc.h @@ -0,0 +1,91 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * 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. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * from: @(#)rtc.h 7.1 (Berkeley) 5/12/91 + * $FreeBSD$ + */ + +#ifndef _I386_ISA_RTC_H_ +#define _I386_ISA_RTC_H_ + +/* + * MC146818 RTC Register locations + */ + +#define RTC_SEC 0x00 /* seconds */ +#define RTC_SECALRM 0x01 /* seconds alarm */ +#define RTC_MIN 0x02 /* minutes */ +#define RTC_MINALRM 0x03 /* minutes alarm */ +#define RTC_HRS 0x04 /* hours */ +#define RTC_HRSALRM 0x05 /* hours alarm */ +#define RTC_WDAY 0x06 /* week day */ +#define RTC_DAY 0x07 /* day of month */ +#define RTC_MONTH 0x08 /* month of year */ +#define RTC_YEAR 0x09 /* month of year */ + +#define RTC_STATUSA 0x0a /* status register A */ +#define RTCSA_TUP 0x80 /* time update, don't look now */ +#define RTCSA_RESET 0x70 /* reset divider */ +#define RTCSA_DIVIDER 0x20 /* divider correct for 32768 Hz */ +#define RTCSA_8192 0x03 /* 8192 Hz interrupt */ +#define RTCSA_4096 0x04 +#define RTCSA_2048 0x05 +#define RTCSA_1024 0x06 /* default for profiling */ +#define RTCSA_PROF RTCSA_1024 +#define RTC_PROFRATE 1024 +#define RTCSA_512 0x07 +#define RTCSA_256 0x08 +#define RTCSA_128 0x09 +#define RTCSA_NOPROF RTCSA_128 +#define RTC_NOPROFRATE 128 +#define RTCSA_64 0x0a +#define RTCSA_32 0x0b /* 32 Hz interrupt */ + +#define RTC_STATUSB 0x0b /* status register B */ +#define RTCSB_DST 0x01 /* USA Daylight Savings Time enable */ +#define RTCSB_24HR 0x02 /* 0 = 12 hours, 1 = 24 hours */ +#define RTCSB_BCD 0x04 /* 0 = BCD, 1 = Binary coded time */ +#define RTCSB_SQWE 0x08 /* 1 = output sqare wave at SQW pin */ +#define RTCSB_UINTR 0x10 /* 1 = enable update-ended interrupt */ +#define RTCSB_AINTR 0x20 /* 1 = enable alarm interrupt */ +#define RTCSB_PINTR 0x40 /* 1 = enable periodic clock interrupt */ +#define RTCSB_HALT 0x80 /* stop clock updates */ + +#define RTC_INTR 0x0c /* status register C (R) interrupt source */ +#define RTCIR_UPDATE 0x10 /* update intr */ +#define RTCIR_ALARM 0x20 /* alarm intr */ +#define RTCIR_PERIOD 0x40 /* periodic intr */ +#define RTCIR_INT 0x80 /* interrupt output signal */ + +#define RTC_STATUSD 0x0d /* status register D (R) Lost Power */ +#define RTCSD_PWR 0x80 /* clock power OK */ + +#endif /* _I386_ISA_RTC_H_ */ -- 2.25.1
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toggle quoted messageShow quoted text
-----Original Message-----Why use this name? Different with our normal practice. +
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Zhao, Yuanyuan
On 4/15/2022 8:22 AM, Dong, Eddie wrote:
This name is inherit from the origin file, i will rename it as our rule.-----Original Message-----Why use this name? Different with our normal practice. +
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