112 lines
4.2 KiB
C
112 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 2014, 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 sensortag-common-peripherals
|
|
* @{
|
|
*
|
|
* \file
|
|
* Board-initialisation for the Srf06EB with a CC13xx/CC26xx EM.
|
|
*/
|
|
/*---------------------------------------------------------------------------*/
|
|
#include "contiki-conf.h"
|
|
#include "ti-lib.h"
|
|
#include "lpm.h"
|
|
#include "prcm.h"
|
|
#include "hw_sysctl.h"
|
|
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
lpm_handler(uint8_t mode)
|
|
{
|
|
/* Ambient light sensor (off, output low) */
|
|
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ALS_PWR);
|
|
ti_lib_gpio_pin_write(BOARD_ALS_PWR, 0);
|
|
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_ALS_OUT);
|
|
ti_lib_ioc_io_port_pull_set(BOARD_IOID_ALS_OUT, IOC_NO_IOPULL);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
wakeup_handler(void)
|
|
{
|
|
/* Turn on the PERIPH PD */
|
|
ti_lib_prcm_power_domain_on(PRCM_DOMAIN_PERIPH);
|
|
while((ti_lib_prcm_power_domain_status(PRCM_DOMAIN_PERIPH)
|
|
!= PRCM_DOMAIN_POWER_ON));
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/*
|
|
* Declare a data structure to register with LPM.
|
|
* We don't care about what power mode we'll drop to, we don't care about
|
|
* getting notified before deep sleep. All we need is to be notified when we
|
|
* wake up so we can turn power domains back on
|
|
*/
|
|
LPM_MODULE(srf_module, NULL, lpm_handler, wakeup_handler, LPM_DOMAIN_NONE);
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
configure_unused_pins(void)
|
|
{
|
|
/* Turn off 3.3-V domain (lcd/sdcard power, output low) */
|
|
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_3V3_EN);
|
|
ti_lib_gpio_pin_write(BOARD_3V3_EN, 0);
|
|
|
|
/* Accelerometer (PWR output low, CSn output, high) */
|
|
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ACC_PWR);
|
|
ti_lib_gpio_pin_write(BOARD_ACC_PWR, 0);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
board_init()
|
|
{
|
|
uint8_t int_disabled = ti_lib_int_master_disable();
|
|
|
|
/* Turn on relevant PDs */
|
|
wakeup_handler();
|
|
|
|
/* Enable GPIO peripheral */
|
|
ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_GPIO);
|
|
|
|
/* Apply settings and wait for them to take effect */
|
|
ti_lib_prcm_load_set();
|
|
while(!ti_lib_prcm_load_get());
|
|
|
|
lpm_register_module(&srf_module);
|
|
|
|
configure_unused_pins();
|
|
|
|
/* Re-enable interrupt if initially enabled. */
|
|
if(!int_disabled) {
|
|
ti_lib_int_master_enable();
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @} */
|