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New Platform: TI CC2538 Development Kit

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This commit adds cpu, platform and example files,
providing support for running Contiki on TI's cc2538 DK
This commit is contained in:
George Oikonomou 2013-01-12 22:44:42 +00:00
parent d5d8de7372
commit 40f49948e6
74 changed files with 13125 additions and 0 deletions
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cpu/cc2538/dev/nvic.c Normal file
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/*
* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \addtogroup cc2538-nvic
* @{
*
* \file
* Driver for the cc2538 NVIC
* All interrupt-related functionality is implemented here
*/
#include "contiki.h"
#include "dev/nvic.h"
#include "dev/scb.h"
#include "reg.h"
#include <stdint.h>
static uint32_t *interrupt_enable;
static uint32_t *interrupt_disable;
static uint32_t *interrupt_pend;
static uint32_t *interrupt_unpend;
/*---------------------------------------------------------------------------*/
void
nvic_init()
{
interrupt_enable = (uint32_t *)NVIC_EN0;
interrupt_disable = (uint32_t *)NVIC_DIS0;
interrupt_pend = (uint32_t *)NVIC_PEND0;
interrupt_unpend = (uint32_t *)NVIC_UNPEND0;
/* Provide our interrupt table to the NVIC */
REG(SCB_VTABLE) = (NVIC_CONF_VTABLE_BASE | NVIC_CONF_VTABLE_OFFSET);
}
/*---------------------------------------------------------------------------*/
void
nvic_interrupt_enable(uint32_t intr)
{
/* Writes of 0 are ignored, which is why we can simply use = */
interrupt_enable[intr >> 5] = 1 << (intr & 0x1F);
}
/*---------------------------------------------------------------------------*/
void
nvic_interrupt_disable(uint32_t intr)
{
/* Writes of 0 are ignored, which is why we can simply use = */
interrupt_disable[intr >> 5] = 1 << (intr & 0x1F);
}
/*---------------------------------------------------------------------------*/
void
nvic_interrupt_en_restore(uint32_t intr, uint8_t v)
{
if(v != 1) {
return;
}
interrupt_enable[intr >> 5] = 1 << (intr & 0x1F);
}
/*---------------------------------------------------------------------------*/
uint8_t
nvic_interrupt_en_save(uint32_t intr)
{
uint8_t rv = ((interrupt_enable[intr >> 5] & (1 << (intr & 0x1F)))
> NVIC_INTERRUPT_DISABLED);
nvic_interrupt_disable(intr);
return rv;
}
/*---------------------------------------------------------------------------*/
void
nvic_interrupt_pend(uint32_t intr)
{
/* Writes of 0 are ignored, which is why we can simply use = */
interrupt_pend[intr >> 5] = 1 << (intr & 0x1F);
}
/*---------------------------------------------------------------------------*/
void
nvic_interrupt_unpend(uint32_t intr)
{
/* Writes of 0 are ignored, which is why we can simply use = */
interrupt_unpend[intr >> 5] = 1 << (intr & 0x1F);
}
/** @} */