40f49948e6
This commit adds cpu, platform and example files, providing support for running Contiki on TI's cc2538 DK
73 lines
2.7 KiB
C
73 lines
2.7 KiB
C
/*
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* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
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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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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup cc2538-cpu
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* @{
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*
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* \file
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* Implementations of interrupt control on the cc2538 Cortex-M3 micro
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*/
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/*---------------------------------------------------------------------------*/
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unsigned long __attribute__((naked))
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cpu_cpsie(void)
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{
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unsigned long ret;
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/* Read PRIMASK and enable interrupts */
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__asm(" mrs r0, PRIMASK\n"
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" cpsie i\n"
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" bx lr\n"
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: "=r" (ret));
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/* The inline asm returns, we never reach here.
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* We add a return statement to keep the compiler happy */
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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unsigned long __attribute__((naked))
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cpu_cpsid(void)
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{
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unsigned long ret;
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/* Read PRIMASK and disable interrupts */
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__asm(" mrs r0, PRIMASK\n"
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" cpsid i\n"
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" bx lr\n"
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: "=r" (ret));
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/* The inline asm returns, we never reach here.
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* We add a return statement to keep the compiler happy */
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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/** @} */
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