Files
threadx/ports/xtensa/xcc/src/tx_thread_interrupt_control.c
2021-01-08 13:31:36 -08:00

82 lines
4.6 KiB
C

/**************************************************************************/
/* */
/* Copyright (c) Microsoft Corporation. All rights reserved. */
/* */
/* This software is licensed under the Microsoft Software License */
/* Terms for Microsoft Azure RTOS. Full text of the license can be */
/* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */
/* and in the root directory of this software. */
/* */
/**************************************************************************/
/**************************************************************************/
/* Copyright (c) Cadence Design Systems, Inc. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#include "tx_api.h"
#include "xtensa_rtos.h"
/**************************************************************************/
/* */
/* DESCRIPTION */
/* */
/* This function is responsible for changing the interrupt lockout */
/* posture of the system. */
/* NOTE: In earlier versions this was implemented in assembly. */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 12-31-2020 Cadence Design Systems Initial Version 6.1.3 */
/* */
/**************************************************************************/
UINT _tx_thread_interrupt_control(UINT new_posture)
{
#if XCHAL_HAVE_XEA2
UINT ret = XT_RSIL(15);
XT_WSR_PS((ret & ~0xF) | (new_posture & 0xF));
XT_RSYNC();
return ret & 0xF;
#else
UINT ret = xthal_disable_interrupts();
xthal_restore_interrupts(new_posture);
return ret;
#endif
}