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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/gpio.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-gpio
* @{
*
* \file
* Implementation of the cc2538 GPIO controller
*/
#include "contiki.h"
#include "sys/energest.h"
#include "dev/leds.h"
#include "dev/gpio.h"
#include "dev/nvic.h"
#include "reg.h"
#include "lpm.h"
#include <string.h>
/**
* \brief Pointer to a function to be called when a GPIO interrupt is detected.
* Callbacks for Port A, Pins[0:7] are stored in positions [0:7] of this
* buffer, Port B callbacks in [8:15] and so on
*/
static gpio_callback_t gpio_callbacks[32];
/*---------------------------------------------------------------------------*/
void
gpio_register_callback(gpio_callback_t f, uint8_t port, uint8_t pin)
{
gpio_callbacks[(port << 3) + pin] = f;
}
/*---------------------------------------------------------------------------*/
/** \brief Run through all registered GPIO callbacks and invoke those
* associated with the \a port and the pins specified by \a mask
* \param mask Search callbacks associated with pins specified by this mask
* \param port Search callbacks associated with this port. Here, port is
* specified as a number between 0 and 3. Port A: 0, Port B: 1 etc */
void
notify(uint8_t mask, uint8_t port)
{
uint8_t i;
gpio_callback_t *f = &gpio_callbacks[port << 3];
for(i = 0; i < 8; i++) {
if(mask & (1 << i)) {
if((*f) != NULL) {
(*f)(port, i);
}
}
f++;
}
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port A */
void
gpio_port_a_isr()
{
ENERGEST_ON(ENERGEST_TYPE_IRQ);
lpm_exit();
notify(REG(GPIO_A_BASE | GPIO_MIS), GPIO_A_NUM);
REG(GPIO_A_BASE | GPIO_IC) = 0xFF;
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port B */
void
gpio_port_b_isr()
{
ENERGEST_ON(ENERGEST_TYPE_IRQ);
lpm_exit();
notify(REG(GPIO_B_BASE | GPIO_MIS), GPIO_B_NUM);
REG(GPIO_B_BASE | GPIO_IC) = 0xFF;
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port C */
void
gpio_port_c_isr()
{
ENERGEST_ON(ENERGEST_TYPE_IRQ);
lpm_exit();
notify(REG(GPIO_C_BASE | GPIO_MIS), GPIO_C_NUM);
REG(GPIO_C_BASE | GPIO_IC) = 0xFF;
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
/*---------------------------------------------------------------------------*/
/** \brief Interrupt service routine for Port D */
void
gpio_port_d_isr()
{
ENERGEST_ON(ENERGEST_TYPE_IRQ);
lpm_exit();
notify(REG(GPIO_D_BASE | GPIO_MIS), GPIO_D_NUM);
REG(GPIO_D_BASE | GPIO_IC) = 0xFF;
ENERGEST_OFF(ENERGEST_TYPE_IRQ);
}
/*---------------------------------------------------------------------------*/
void
gpio_init()
{
memset(gpio_callbacks, 0, sizeof(gpio_callbacks));
}
/** @} */