contiki-main.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
 *
 * 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/sys-ctrl.h"
#include "dev/scb.h"
#include "dev/nvic.h"
#include "dev/uart.h"
#include "dev/watchdog.h"
#include "dev/ioc.h"
#include "dev/button-sensor.h"
#include "dev/serial-line.h"
#include "dev/slip.h"
#include "dev/cc2538-rf.h"
#include "dev/udma.h"
#include "dev/crypto.h"
#include "usb/usb-serial.h"
#include "lib/random.h"
#include "net/netstack.h"
#include "net/queuebuf.h"
#include "net/ip/tcpip.h"
#include "net/ip/uip.h"
#include "net/mac/frame802154.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>
/*---------------------------------------------------------------------------*/
#if STARTUP_CONF_VERBOSE
#define PRINTF(...) printf(__VA_ARGS__)
#else
#define PRINTF(...)
#endif

#if UART_CONF_ENABLE
#define PUTS(s) puts(s)
#else
#define PUTS(s)
#endif
/*---------------------------------------------------------------------------*/
static void
fade(unsigned char 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;

  /* Populate linkaddr_node_addr. Maintain endianness */
  memcpy(&linkaddr_node_addr, &ext_addr[8 - LINKADDR_SIZE], LINKADDR_SIZE);

#if STARTUP_CONF_VERBOSE
  {
    int i;
    printf("Rime configured with address ");
    for(i = 0; i < LINKADDR_SIZE - 1; i++) {
      printf("%02x:", linkaddr_node_addr.u8[i]);
    }
    printf("%02x\n", linkaddr_node_addr.u8[i]);
  }
#endif

  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, CC2538_RF_CHANNEL);
  NETSTACK_RADIO.set_object(RADIO_PARAM_64BIT_ADDR, ext_addr, 8);
}
/*---------------------------------------------------------------------------*/
/**
 * \brief Main routine for the cc2538dk platform
 */
int
main(void)
{
  nvic_init();
  ioc_init();
  sys_ctrl_init();
  clock_init();
  lpm_init();
  rtimer_init();
  gpio_init();

  leds_init();
  fade(LEDS_YELLOW);

  process_init();

  watchdog_init();
  button_sensor_init();

  /*
   * 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();

  INTERRUPTS_ENABLE();
  fade(LEDS_GREEN);

  PUTS(CONTIKI_VERSION_STRING);
  PUTS(BOARD_STRING);
#if STARTUP_CONF_VERBOSE
  soc_print_info();
#endif

  PRINTF(" Net: ");
  PRINTF("%s\n", NETSTACK_NETWORK.name);
  PRINTF(" MAC: ");
  PRINTF("%s\n", NETSTACK_MAC.name);
  PRINTF(" RDC: ");
  PRINTF("%s\n", NETSTACK_RDC.name);

  /* Initialise the H/W RNG engine. */
  random_init(0);

  udma_init();

  process_start(&etimer_process, NULL);
  ctimer_init();

  set_rf_params();

#if CRYPTO_CONF_INIT
  crypto_init();
  crypto_disable();
#endif

  netstack_init();

#if NETSTACK_CONF_WITH_IPV6
  memcpy(&uip_lladdr.addr, &linkaddr_node_addr, sizeof(uip_lladdr.addr));
  queuebuf_init();
  process_start(&tcpip_process, NULL);
#endif /* NETSTACK_CONF_WITH_IPV6 */

  adc_init();

  process_start(&sensors_process, NULL);

  energest_init();
  ENERGEST_ON(ENERGEST_TYPE_CPU);

  autostart_start(autostart_processes);

  watchdog_start();
  fade(LEDS_ORANGE);

  while(1) {
    uint8_t r;
    do {
      /* Reset watchdog and handle polls and events */
      watchdog_periodic();

      r = process_run();
    } while(r > 0);

    /* We have serviced all pending events. Enter a Low-Power mode. */
    lpm_enter();
  }
}
/*---------------------------------------------------------------------------*/

/**
 * @}
 * @}
 */