osd-contiki/platform/srf06-cc26xx/launchpad/cc1350/rf-switch.c
2016-12-11 20:44:25 +00:00

92 lines
3.4 KiB
C

/*
* Copyright (c) 2015, 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 rf-switch
* @{
*
* \file
* CC1350 LP RF switch driver
*/
/*---------------------------------------------------------------------------*/
#include "contiki-conf.h"
#include "lpm.h"
#include "rf-core/rf-switch.h"
#include "ti-lib.h"
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
/*---------------------------------------------------------------------------*/
#define POWER_PIN IOID_30
#define SELECT_PIN IOID_1
/*---------------------------------------------------------------------------*/
static void
shutdown_handler(uint8_t mode)
{
ti_lib_gpio_clear_dio(POWER_PIN);
}
/*---------------------------------------------------------------------------*/
/*
* Declare a data structure to register with LPM. Always turn off the switch
* when we are dropping to deep sleep. We let the RF driver turn it on though.
*/
LPM_MODULE(rf_switch_module, NULL, shutdown_handler, NULL, LPM_DOMAIN_NONE);
/*---------------------------------------------------------------------------*/
void
rf_switch_init()
{
ti_lib_rom_ioc_pin_type_gpio_output(POWER_PIN);
ti_lib_gpio_clear_dio(POWER_PIN);
ti_lib_rom_ioc_pin_type_gpio_output(SELECT_PIN);
ti_lib_gpio_clear_dio(SELECT_PIN);
lpm_register_module(&rf_switch_module);
}
/*---------------------------------------------------------------------------*/
void
rf_switch_power_up()
{
ti_lib_gpio_set_dio(POWER_PIN);
}
/*---------------------------------------------------------------------------*/
void
rf_switch_power_down()
{
ti_lib_gpio_clear_dio(POWER_PIN);
}
/*---------------------------------------------------------------------------*/
void
rf_switch_select_path(uint8_t path)
{
ti_lib_gpio_write_dio(SELECT_PIN, path);
}
/*---------------------------------------------------------------------------*/
/** @} */