nes-proj/arch/platform/cc2538dk/platform.c

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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-platforms
* @{
*
* \defgroup cc2538dk The cc2538 Development Kit platform
*
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* The cc2538DK is a platform by Texas Instruments, based on the
* cc2538 SoC with an ARM Cortex-M3 core.
* @{
*
* \file
* Main module for the cc2538dk platform
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "dev/adc.h"
#include "dev/leds.h"
#include "dev/uart.h"
#include "dev/serial-line.h"
#include "dev/slip.h"
#include "dev/cc2538-rf.h"
#include "dev/udma.h"
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#include "dev/crypto.h"
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#include "dev/button-hal.h"
#include "usb/usb-serial.h"
#include "lib/random.h"
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#include "lib/sensors.h"
#include "net/netstack.h"
#include "net/mac/framer/frame802154.h"
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#include "net/linkaddr.h"
#include "sys/platform.h"
#include "soc.h"
#include "cpu.h"
#include "reg.h"
#include "ieee-addr.h"
#include "lpm.h"
#include <stdint.h>
#include <string.h>
#include <stdio.h>
/*---------------------------------------------------------------------------*/
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/* Log configuration */
#include "sys/log.h"
#define LOG_MODULE "CC2538DK"
#define LOG_LEVEL LOG_LEVEL_MAIN
/*---------------------------------------------------------------------------*/
static void
fade(leds_mask_t l)
{
volatile int i;
int k, j;
for(k = 0; k < 800; ++k) {
j = k > 400 ? 800 - k : k;
leds_on(l);
for(i = 0; i < j; ++i) {
__asm("nop");
}
leds_off(l);
for(i = 0; i < 400 - j; ++i) {
__asm("nop");
}
}
}
/*---------------------------------------------------------------------------*/
static void
set_rf_params(void)
{
uint16_t short_addr;
uint8_t ext_addr[8];
ieee_addr_cpy_to(ext_addr, 8);
short_addr = ext_addr[7];
short_addr |= ext_addr[6] << 8;
NETSTACK_RADIO.set_value(RADIO_PARAM_PAN_ID, IEEE802154_PANID);
NETSTACK_RADIO.set_value(RADIO_PARAM_16BIT_ADDR, short_addr);
NETSTACK_RADIO.set_value(RADIO_PARAM_CHANNEL, IEEE802154_DEFAULT_CHANNEL);
NETSTACK_RADIO.set_object(RADIO_PARAM_64BIT_ADDR, ext_addr, 8);
}
/*---------------------------------------------------------------------------*/
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void
platform_init_stage_one(void)
{
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soc_init();
leds_init();
fade(LEDS_YELLOW);
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}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_two()
{
/*
* Character I/O Initialisation.
* When the UART receives a character it will call serial_line_input_byte to
* notify the core. The same applies for the USB driver.
*
* If slip-arch is also linked in afterwards (e.g. if we are a border router)
* it will overwrite one of the two peripheral input callbacks. Characters
* received over the relevant peripheral will be handled by
* slip_input_byte instead
*/
#if UART_CONF_ENABLE
uart_init(0);
uart_init(1);
uart_set_input(SERIAL_LINE_CONF_UART, serial_line_input_byte);
#endif
#if USB_SERIAL_CONF_ENABLE
usb_serial_init();
usb_serial_set_input(serial_line_input_byte);
#endif
serial_line_init();
/* Initialise the H/W RNG engine. */
random_init(0);
udma_init();
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#if CRYPTO_CONF_INIT
crypto_init();
crypto_disable();
#endif
/* Populate linkaddr_node_addr */
ieee_addr_cpy_to(linkaddr_node_addr.u8, LINKADDR_SIZE);
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button_hal_init();
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INTERRUPTS_ENABLE();
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fade(LEDS_GREEN);
}
/*---------------------------------------------------------------------------*/
void
platform_init_stage_three()
{
LOG_INFO("%s\n", BOARD_STRING);
set_rf_params();
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soc_print_info();
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adc_init();
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process_start(&sensors_process, NULL);
fade(LEDS_ORANGE);
}
/*---------------------------------------------------------------------------*/
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void
platform_idle()
{
/* We have serviced all pending events. Enter a Low-Power mode. */
lpm_enter();
}
/*---------------------------------------------------------------------------*/
/**
* @}
* @}
*/