acpi/osl/osl_sched.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  * Copyright (C) 2024 Matheus Pecoraro
0005  *
0006  * Redistribution and use in source and binary forms, with or without
0007  * modification, are permitted provided that the following conditions
0008  * are met:
0009  * 1. Redistributions of source code must retain the above copyright
0010  *    notice, this list of conditions and the following disclaimer.
0011  * 2. Redistributions in binary form must reproduce the above copyright
0012  *    notice, this list of conditions and the following disclaimer in the
0013  *    documentation and/or other materials provided with the distribution.
0014  *
0015  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0016  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0017  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0018  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0019  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0020  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0021  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0024  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0025  * POSSIBILITY OF SUCH DAMAGE.
0026  */
0027
0028 #include <acpi/acpica/acpi.h>
0029
0030 #include <pthread.h>
0031 #include <unistd.h>
0032 #include <sys/time.h>
0033
0034 /**
0035  * TODO: This routine will need to be implemented before using features such as:
0036  * General Purpose Events, Notify Events, ACPICA Debugger...
0037  */
0038 ACPI_STATUS AcpiOsExecute(
0039   ACPI_EXECUTE_TYPE Type,
0040   ACPI_OSD_EXEC_CALLBACK Function,
0041   void* Context
0042 )
0043 {
0044   return (AE_SUPPORT);
0045 }
0046
0047 void AcpiOsSleep(UINT64 Milliseconds)
0048 {
0049   usleep(Milliseconds * 1000);
0050 }
0051
0052
0053 void AcpiOsStall(UINT32 Microseconds)
0054 {
0055   struct timeval tv;
0056   struct timeval stall_tv;
0057
0058   gettimeofday(&stall_tv, NULL);
0059   stall_tv.tv_sec += Microseconds / 1000000;
0060   stall_tv.tv_usec += Microseconds % 1000000;
0061
0062   do {
0063     gettimeofday(&tv, NULL);
0064   } while (tv.tv_sec < stall_tv.tv_sec ||
0065           (tv.tv_sec == stall_tv.tv_sec && tv.tv_usec < stall_tv.tv_usec));
0066 }
0067
0068 ACPI_THREAD_ID AcpiOsGetThreadId(void)
0069 {
0070   return (ACPI_THREAD_ID) pthread_self();
0071 }