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hal_cpu.c
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hal_cpu.c
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/*
* Copyright (C) 2011 by Matthias Ringwald
*
* 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 holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY MATTHIAS RINGWALD 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 MATTHIAS
* RINGWALD 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.
*
*/
/*
* hal_cpu.c
*
* Implementation for MSP430 Experimenter board using low power mode 0/3
*
*/
#include <btstack/hal_cpu.h>
#include "hal_board.h"
#include "hal_compat.h"
#include <msp430x54x.h>
static uint8_t low_power_mode_for_sleep = LPM0_bits;
void hal_cpu_disable_irqs(){
// LED off
LED_PORT_OUT &= ~LED_1;
// disable irq
__bic_SR_register(GIE);
}
void hal_cpu_enable_irqs(){
// enable irq
__bis_SR_register(GIE);
// LED on
LED_PORT_OUT |= LED_1;
}
void hal_cpu_set_uart_needed_during_sleep(uint8_t enabled){
if (enabled){
LED_PORT_OUT |= LED_2;
low_power_mode_for_sleep = LPM0_bits;
return;
}
LED_PORT_OUT &= ~LED_2;
low_power_mode_for_sleep = LPM3_bits;
}
void hal_cpu_enable_irqs_and_sleep(){
// enable irq and enter lpm0
__bis_SR_register(low_power_mode_for_sleep + GIE);
// LED on
P1OUT |= 1; //was P1OUT |= 1;
}