1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 39 /* 40 * hal_cpu.c 41 * 42 * Implementation for MSP430 Experimenter board using low power mode 0/3 43 * 44 */ 45 46 #include "hal_cpu.h" 47 48 #include "hal_board.h" 49 #include "hal_compat.h" 50 51 #include <msp430x54x.h> 52 53 static uint8_t low_power_mode_for_sleep = LPM0_bits; 54 55 void hal_cpu_disable_irqs(void){ 56 57 // LED off 58 LED1_OUT &= ~LED1_PIN; 59 60 // disable irq 61 __bic_SR_register(GIE); 62 } 63 64 void hal_cpu_enable_irqs(void){ 65 66 // enable irq 67 __bis_SR_register(GIE); 68 69 // LED on 70 LED1_OUT |= LED1_PIN; 71 } 72 73 void hal_cpu_set_uart_needed_during_sleep(uint8_t enabled){ 74 if (enabled){ 75 LED2_OUT |= LED2_PIN; 76 low_power_mode_for_sleep = LPM0_bits; 77 return; 78 } 79 LED2_OUT &= ~LED2_PIN; 80 low_power_mode_for_sleep = LPM3_bits; 81 } 82 83 void hal_cpu_enable_irqs_and_sleep(void){ 84 85 // enable irq and enter lpm0 86 __bis_SR_register(low_power_mode_for_sleep + GIE); 87 88 // LED on 89 LED1_OUT |= LED1_PIN; 90 } 91 92 93