84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
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/*
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* QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
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*
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* RTAS Real Time Clock
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*
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* Copyright (c) 2010-2011 David Gibson, IBM Corporation.
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* Copyright 2014 David Gibson, Red Hat.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include "cpu.h"
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#include "hw/ppc/spapr.h"
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#include "qapi-event.h"
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static void rtas_get_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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uint32_t token, uint32_t nargs,
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target_ulong args,
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uint32_t nret, target_ulong rets)
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{
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struct tm tm;
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if (nret != 8) {
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rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
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return;
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}
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qemu_get_timedate(&tm, spapr->rtc_offset);
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rtas_st(rets, 0, RTAS_OUT_SUCCESS);
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rtas_st(rets, 1, tm.tm_year + 1900);
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rtas_st(rets, 2, tm.tm_mon + 1);
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rtas_st(rets, 3, tm.tm_mday);
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rtas_st(rets, 4, tm.tm_hour);
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rtas_st(rets, 5, tm.tm_min);
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rtas_st(rets, 6, tm.tm_sec);
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rtas_st(rets, 7, 0); /* we don't do nanoseconds */
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}
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static void rtas_set_time_of_day(PowerPCCPU *cpu, sPAPREnvironment *spapr,
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uint32_t token, uint32_t nargs,
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target_ulong args,
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uint32_t nret, target_ulong rets)
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{
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struct tm tm;
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tm.tm_year = rtas_ld(args, 0) - 1900;
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tm.tm_mon = rtas_ld(args, 1) - 1;
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tm.tm_mday = rtas_ld(args, 2);
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tm.tm_hour = rtas_ld(args, 3);
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tm.tm_min = rtas_ld(args, 4);
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tm.tm_sec = rtas_ld(args, 5);
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/* Just generate a monitor event for the change */
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qapi_event_send_rtc_change(qemu_timedate_diff(&tm), &error_abort);
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spapr->rtc_offset = qemu_timedate_diff(&tm);
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rtas_st(rets, 0, RTAS_OUT_SUCCESS);
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}
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void spapr_rtc_init(void)
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{
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spapr_rtas_register(RTAS_GET_TIME_OF_DAY, "get-time-of-day",
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rtas_get_time_of_day);
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spapr_rtas_register(RTAS_SET_TIME_OF_DAY, "set-time-of-day",
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rtas_set_time_of_day);
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}
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