osd-contiki/examples/zolertia/zoul/rev-a/test-power-mgmt.c

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/*
* Copyright (c) 2015, Zolertia - http://www.zolertia.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 Institute 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 INSTITUTE 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 INSTITUTE 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 remote-power-management-test
* @{
*
* Test the RE-Mote's (revision A) power management features, shutdown mode and
* battery management
*
* @{
*
* \author
* Antonio Lignan <alinan@zolertia.com>
* Aitor Mejias <amejias@zolertia.com>
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "cpu.h"
#include "sys/etimer.h"
#include "sys/process.h"
#include "dev/leds.h"
#include "dev/sys-ctrl.h"
#include "dev/gpio.h"
#include "lib/list.h"
#include "power-mgmt.h"
#include "net/rime/broadcast.h"
#include <stdio.h>
#include <stdint.h>
/*---------------------------------------------------------------------------*/
/* RE-Mote revision A */
#define PM_EXPECTED_VERSION 0x00
#define ENTER_SHUTDOWN_COUNT 10
/*---------------------------------------------------------------------------*/
PROCESS(test_remote_pm, "RE-Mote Power Management Test");
AUTOSTART_PROCESSES(&test_remote_pm);
/*---------------------------------------------------------------------------*/
static struct etimer et;
/*---------------------------------------------------------------------------*/
static void
broadcast_recv(struct broadcast_conn *c, const linkaddr_t *from)
{
leds_toggle(LEDS_BLUE);
printf("*** Received %u bytes from %u:%u: '0x%04x'\n", packetbuf_datalen(),
from->u8[0], from->u8[1], *(uint16_t *)packetbuf_dataptr());
}
/*---------------------------------------------------------------------------*/
static const struct broadcast_callbacks bc_rx = { broadcast_recv };
static struct broadcast_conn bc;
/*---------------------------------------------------------------------------*/
static char *
print_pm(uint8_t state)
{
switch(state) {
case PM_SYSOFF_ON:
return "Battery on";
case PM_SYSOFF_OFF:
return "Battery off";
case PM_TIMER_ENABLED:
return "Nano Timer enabled";
case PM_TIMER_DISABLED:
return "Nano Timer disabled";
case PM_AWAITING_RTC_EVENT:
return "Awaiting RTC event";
default:
return "UNKNOWN";
}
}
/*---------------------------------------------------------------------------*/
static int8_t
get_status(uint8_t mask, uint8_t *val)
{
uint8_t status, print_msg;
/* Retrieve the status of the power management block */
if(pm_get_state(&status) != PM_SUCCESS) {
printf("Failed to retrieve the power management status\n");
return PM_ERROR;
}
if(!mask) {
printf("STATUS %u\n", status);
*val = PM_IDLE;
return PM_SUCCESS;
}
/* Read back ony the requested status bit */
switch(mask) {
case PM_SYSOFF_ON_MASK:
print_msg = (status & mask) ? PM_SYSOFF_ON : PM_SYSOFF_OFF;
break;
case PM_TIMER_ENABLED_MASK:
print_msg = (status & mask) ? PM_TIMER_ENABLED : PM_TIMER_DISABLED;
break;
case PM_AWAITING_RTC_EVENT_MASK:
print_msg = (status & mask) ? PM_AWAITING_RTC_EVENT : PM_AWAITING_RTC_DIS;
break;
default:
return PM_ERROR;
}
printf("Status -> %s\n", print_pm(print_msg));
*val = print_msg;
return PM_SUCCESS;
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(test_remote_pm, ev, data)
{
static uint8_t aux;
PROCESS_BEGIN();
/* Configures the pins and initializes the driver */
if(pm_init() != PM_SUCCESS) {
printf("Failed to initialize\n");
PROCESS_EXIT();
}
/* Get the current firmware version to track the driver implementation on the
* low-power MCU
*/
if(pm_get_firmware_version(&aux) != PM_SUCCESS) {
printf("Failed to retrieve PIC's fw version\n");
PROCESS_EXIT();
}
printf("Firmware PIC-Power Manager Version: V0.%u\n", aux);
if(aux != PM_EXPECTED_VERSION) {
printf("Unexpected firmware version\n");
PROCESS_EXIT();
}
/* Enables the nano timer, the power management block will be driven by the
* nano timer now, putting the node in shutdown mode every minute (as
* default). For this test you need to disconnect the USB cable off to power
* the RE-Mote ONLY from the external battery, so after veryfing the above
* works, disconnect the USB cable and hit the reset button
* When the nano timer is enabled, the external battery is shutdown for a
* couple of usecs, so the CC2538 is restarted. After this as the nano timer
* is enabled, then it will run as intended
*/
if(get_status(PM_TIMER_ENABLED_MASK, &aux) != PM_SUCCESS) {
PROCESS_EXIT();
}
if(aux == PM_TIMER_DISABLED) {
printf("Enabling the nano Timer...\n");
if(pm_enable_timer() != PM_SUCCESS) {
printf("Failed to set the nano Timer\n");
PROCESS_EXIT();
}
}
/* At this point as the RE-Mote is powered over USB you should see the prints,
* disconnect the USB cable and power only with the external battery. If
* something fails, then you should not see the red LED blinking
*/
aux = ENTER_SHUTDOWN_COUNT;
/* Open the broadcast channel */
broadcast_open(&bc, BROADCAST_CHANNEL, &bc_rx);
/* Send a message */
packetbuf_copyfrom(&aux, sizeof(aux));
broadcast_send(&bc);
/* And wait a few seconds before going to sleep */
while(1) {
etimer_set(&et, CLOCK_SECOND);
PROCESS_WAIT_EVENT();
/* Enter shutdown mode before the shutdown period (1 min default) expires */
if(!aux) {
/* Say goodnight */
PM_SHUTDOWN_NOW;
printf("Goodnight!\n");
PROCESS_EXIT();
}
aux--;
leds_toggle(LEDS_RED);
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}
* @}
*/