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1de7b4b805
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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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 NETAPP, INC ``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 NETAPP, INC 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <time.h>
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#include <assert.h>
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#include <machine/vmm.h>
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#include <vmmapi.h>
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#include "acpi.h"
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#include "pci_lpc.h"
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#include "rtc.h"
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#define IO_RTC 0x70
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#define RTC_LMEM_LSB 0x34
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#define RTC_LMEM_MSB 0x35
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#define RTC_HMEM_LSB 0x5b
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#define RTC_HMEM_SB 0x5c
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#define RTC_HMEM_MSB 0x5d
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#define m_64KB (64*1024)
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#define m_16MB (16*1024*1024)
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#define m_4GB (4ULL*1024*1024*1024)
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/*
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* Returns the current RTC time as number of seconds since 00:00:00 Jan 1, 1970
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*/
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static time_t
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rtc_time(struct vmctx *ctx, int use_localtime)
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{
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struct tm tm;
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time_t t;
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time(&t);
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if (use_localtime) {
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localtime_r(&t, &tm);
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t = timegm(&tm);
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}
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return (t);
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}
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void
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rtc_init(struct vmctx *ctx, int use_localtime)
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{
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size_t himem;
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size_t lomem;
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int err;
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/* XXX init diag/reset code/equipment/checksum ? */
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/*
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* Report guest memory size in nvram cells as required by UEFI.
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* Little-endian encoding.
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* 0x34/0x35 - 64KB chunks above 16MB, below 4GB
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* 0x5b/0x5c/0x5d - 64KB chunks above 4GB
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*/
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lomem = (vm_get_lowmem_size(ctx) - m_16MB) / m_64KB;
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err = vm_rtc_write(ctx, RTC_LMEM_LSB, lomem);
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assert(err == 0);
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err = vm_rtc_write(ctx, RTC_LMEM_MSB, lomem >> 8);
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assert(err == 0);
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himem = vm_get_highmem_size(ctx) / m_64KB;
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err = vm_rtc_write(ctx, RTC_HMEM_LSB, himem);
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assert(err == 0);
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err = vm_rtc_write(ctx, RTC_HMEM_SB, himem >> 8);
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assert(err == 0);
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err = vm_rtc_write(ctx, RTC_HMEM_MSB, himem >> 16);
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assert(err == 0);
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err = vm_rtc_settime(ctx, rtc_time(ctx, use_localtime));
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assert(err == 0);
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}
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static void
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rtc_dsdt(void)
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{
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dsdt_line("");
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dsdt_line("Device (RTC)");
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dsdt_line("{");
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dsdt_line(" Name (_HID, EisaId (\"PNP0B00\"))");
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dsdt_line(" Name (_CRS, ResourceTemplate ()");
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dsdt_line(" {");
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dsdt_indent(2);
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dsdt_fixed_ioport(IO_RTC, 2);
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dsdt_fixed_irq(8);
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dsdt_unindent(2);
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dsdt_line(" })");
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dsdt_line("}");
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}
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LPC_DSDT(rtc_dsdt);
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/*
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* Reserve the extended RTC I/O ports although they are not emulated at this
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* time.
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*/
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SYSRES_IO(0x72, 6);
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