contiki/platform/srf06-cc26xx/srf06/board.c
2015-02-25 13:10:26 +01:00

144 lines
5.6 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-cc26xx-peripherals
* @{
*
* \file
* Board-initialisation for the Srf06EB with a 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>
/*---------------------------------------------------------------------------*/
#define PRCM_DOMAINS (PRCM_DOMAIN_RFCORE | PRCM_DOMAIN_SERIAL | \
PRCM_DOMAIN_PERIPH | PRCM_DOMAIN_CPU | \
PRCM_DOMAIN_SYSBUS | PRCM_DOMAIN_VIMS)
/*---------------------------------------------------------------------------*/
#define LPM_DOMAINS (PRCM_DOMAIN_SERIAL | PRCM_DOMAIN_PERIPH)
/*---------------------------------------------------------------------------*/
static void
power_domains_on(void)
{
/* Turn on relevant power domains */
ti_lib_prcm_power_domain_on(LPM_DOMAINS);
/* Wait for domains to power on */
while((ti_lib_prcm_power_domain_status(LPM_DOMAINS)
!= PRCM_DOMAIN_POWER_ON));
}
/*---------------------------------------------------------------------------*/
static void
lpm_wakeup_handler(void)
{
power_domains_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, NULL, lpm_wakeup_handler);
/*---------------------------------------------------------------------------*/
void
board_init()
{
uint8_t int_disabled = ti_lib_int_master_disable();
/* Turn on all power domains */
ti_lib_prcm_power_domain_on(PRCM_DOMAINS);
/* Wait for power on domains */
while((ti_lib_prcm_power_domain_status(PRCM_DOMAINS)
!= PRCM_DOMAIN_POWER_ON));
/* Configure all clock domains to run at full speed */
ti_lib_prcm_clock_configure_set(PRCM_DOMAIN_SYSBUS | PRCM_DOMAIN_CPU |
PRCM_DOMAIN_CPU | PRCM_DOMAIN_TIMER |
PRCM_DOMAIN_SERIAL | PRCM_DOMAIN_PERIPH,
PRCM_CLOCK_DIV_1);
/* 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()) ;
/* Keys (input pullup) */
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_UP);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_DOWN);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_LEFT);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_RIGHT);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_SELECT);
/* Turn off 3.3V domain (Powers the LCD and SD card reader): Output, low */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_3V3_EN);
ti_lib_gpio_pin_write(BOARD_3V3_EN, 0);
/* LCD CSn (output high) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_LCD_CS);
ti_lib_gpio_pin_write(BOARD_LCD_CS, 1);
/* SD Card reader CSn (output high) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_SDCARD_CS);
ti_lib_gpio_pin_write(BOARD_SDCARD_CS, 1);
/* 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);
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ACC_CS);
ti_lib_gpio_pin_write(BOARD_IOID_ACC_CS, 1);
/* 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);
lpm_register_module(&srf_module);
/* Re-enable interrupt if initially enabled. */
if(!int_disabled) {
ti_lib_int_master_enable();
}
}
/*---------------------------------------------------------------------------*/
/** @} */