94 lines
3.4 KiB
C
94 lines
3.4 KiB
C
/*
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* Copyright (c) 2014, OpenMote Technologies, S.L.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \addtogroup openmote-tps62730
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* @{
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*
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* Driver for the TPS62730 voltage regulator, to enable power from
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* the battery voltage (bypass, Vout=Vin, Iq < 1uA) or through the
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* buck regulator (on, Vout=2.1V, Iq = 30uA)
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* @{
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*
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* \file
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* Driver for the TPS62730 voltage regulator
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*
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* \author
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* Pere Tuset <peretuset@openmote.com>
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*/
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/*---------------------------------------------------------------------------*/
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#include "contiki-conf.h"
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#include "dev/gpio.h"
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#include "dev/tps62730.h"
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/*---------------------------------------------------------------------------*/
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#define BSP_TPS62730_BASE (GPIO_B_BASE)
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#define BSP_TPS62730_ON (1 << 1)
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#define BSP_TPS62730_STATUS (1 << 0)
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/*---------------------------------------------------------------------------*/
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static void
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gpio_set(int port, int bit)
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{
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REG((port | GPIO_DATA) + (bit << 2)) = bit;
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}
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/*---------------------------------------------------------------------------*/
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static void
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gpio_reset(int port, int bit)
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{
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REG((port | GPIO_DATA) + (bit << 2)) = 0;
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}
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/*---------------------------------------------------------------------------*/
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void
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tps62730_init(void)
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{
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GPIO_SET_OUTPUT(BSP_TPS62730_BASE, BSP_TPS62730_ON);
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GPIO_SET_INPUT(BSP_TPS62730_BASE, BSP_TPS62730_STATUS);
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tps62730_bypass();
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}
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/*---------------------------------------------------------------------------*/
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void
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tps62730_on(void)
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{
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gpio_set(BSP_TPS62730_BASE, BSP_TPS62730_ON);
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}
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/*---------------------------------------------------------------------------*/
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void
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tps62730_bypass(void)
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{
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gpio_reset(BSP_TPS62730_BASE, BSP_TPS62730_ON);
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}
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/*---------------------------------------------------------------------------*/
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/**
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* @}
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* @}
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*/
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