anyThing Connected Team / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   BREAK_SENSOR_LED

Fork of mbed-dev by mbed official

targets/TARGET_NUVOTON/TARGET_M480/sleep.c@172:7d866c31b3c5, 2017-08-31 (annotated)

Committer:
AnnaBridge
Date:
Thu Aug 31 17:27:04 2017 +0100
Revision:
172:7d866c31b3c5
Child:
176:447f873cad2f
This updates the lib to the mbed lib v 150

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 172:7d866c31b3c5 1 /* mbed Microcontroller Library
AnnaBridge 172:7d866c31b3c5 2 * Copyright (c) 2015-2016 Nuvoton
AnnaBridge 172:7d866c31b3c5 3 *
AnnaBridge 172:7d866c31b3c5 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 172:7d866c31b3c5 5 * you may not use this file except in compliance with the License.
AnnaBridge 172:7d866c31b3c5 6 * You may obtain a copy of the License at
AnnaBridge 172:7d866c31b3c5 7 *
AnnaBridge 172:7d866c31b3c5 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 172:7d866c31b3c5 9 *
AnnaBridge 172:7d866c31b3c5 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 172:7d866c31b3c5 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 172:7d866c31b3c5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 172:7d866c31b3c5 13 * See the License for the specific language governing permissions and
AnnaBridge 172:7d866c31b3c5 14 * limitations under the License.
AnnaBridge 172:7d866c31b3c5 15 */
AnnaBridge 172:7d866c31b3c5 16
AnnaBridge 172:7d866c31b3c5 17 #include "sleep_api.h"
AnnaBridge 172:7d866c31b3c5 18 #include "serial_api.h"
AnnaBridge 172:7d866c31b3c5 19 #include "lp_ticker_api.h"
AnnaBridge 172:7d866c31b3c5 20
AnnaBridge 172:7d866c31b3c5 21 #if DEVICE_SLEEP
AnnaBridge 172:7d866c31b3c5 22
AnnaBridge 172:7d866c31b3c5 23 #include "cmsis.h"
AnnaBridge 172:7d866c31b3c5 24 #include "device.h"
AnnaBridge 172:7d866c31b3c5 25 #include "objects.h"
AnnaBridge 172:7d866c31b3c5 26 #include "PeripheralPins.h"
AnnaBridge 172:7d866c31b3c5 27
AnnaBridge 172:7d866c31b3c5 28 static void mbed_enter_sleep(struct sleep_s *obj);
AnnaBridge 172:7d866c31b3c5 29 static void mbed_exit_sleep(struct sleep_s *obj);
AnnaBridge 172:7d866c31b3c5 30
AnnaBridge 172:7d866c31b3c5 31 int serial_allow_powerdown(void);
AnnaBridge 172:7d866c31b3c5 32 int spi_allow_powerdown(void);
AnnaBridge 172:7d866c31b3c5 33 int i2c_allow_powerdown(void);
AnnaBridge 172:7d866c31b3c5 34 int pwmout_allow_powerdown(void);
AnnaBridge 172:7d866c31b3c5 35
AnnaBridge 172:7d866c31b3c5 36 /**
AnnaBridge 172:7d866c31b3c5 37 * Enter Idle mode.
AnnaBridge 172:7d866c31b3c5 38 */
AnnaBridge 172:7d866c31b3c5 39 void hal_sleep(void)
AnnaBridge 172:7d866c31b3c5 40 {
AnnaBridge 172:7d866c31b3c5 41 struct sleep_s sleep_obj;
AnnaBridge 172:7d866c31b3c5 42 sleep_obj.powerdown = 0;
AnnaBridge 172:7d866c31b3c5 43 mbed_enter_sleep(&sleep_obj);
AnnaBridge 172:7d866c31b3c5 44 mbed_exit_sleep(&sleep_obj);
AnnaBridge 172:7d866c31b3c5 45 }
AnnaBridge 172:7d866c31b3c5 46
AnnaBridge 172:7d866c31b3c5 47 /**
AnnaBridge 172:7d866c31b3c5 48 * Enter Power-down mode while no peripheral is active; otherwise, enter Idle mode.
AnnaBridge 172:7d866c31b3c5 49 */
AnnaBridge 172:7d866c31b3c5 50 void hal_deepsleep(void)
AnnaBridge 172:7d866c31b3c5 51 {
AnnaBridge 172:7d866c31b3c5 52 struct sleep_s sleep_obj;
AnnaBridge 172:7d866c31b3c5 53 sleep_obj.powerdown = 1;
AnnaBridge 172:7d866c31b3c5 54 mbed_enter_sleep(&sleep_obj);
AnnaBridge 172:7d866c31b3c5 55 mbed_exit_sleep(&sleep_obj);
AnnaBridge 172:7d866c31b3c5 56 }
AnnaBridge 172:7d866c31b3c5 57
AnnaBridge 172:7d866c31b3c5 58 static void mbed_enter_sleep(struct sleep_s *obj)
AnnaBridge 172:7d866c31b3c5 59 {
AnnaBridge 172:7d866c31b3c5 60 // Check if serial allows entering power-down mode
AnnaBridge 172:7d866c31b3c5 61 if (obj->powerdown) {
AnnaBridge 172:7d866c31b3c5 62 obj->powerdown = serial_allow_powerdown();
AnnaBridge 172:7d866c31b3c5 63 }
AnnaBridge 172:7d866c31b3c5 64 // Check if spi allows entering power-down mode
AnnaBridge 172:7d866c31b3c5 65 if (obj->powerdown) {
AnnaBridge 172:7d866c31b3c5 66 obj->powerdown = spi_allow_powerdown();
AnnaBridge 172:7d866c31b3c5 67 }
AnnaBridge 172:7d866c31b3c5 68 // Check if i2c allows entering power-down mode
AnnaBridge 172:7d866c31b3c5 69 if (obj->powerdown) {
AnnaBridge 172:7d866c31b3c5 70 obj->powerdown = i2c_allow_powerdown();
AnnaBridge 172:7d866c31b3c5 71 }
AnnaBridge 172:7d866c31b3c5 72 // Check if pwmout allows entering power-down mode
AnnaBridge 172:7d866c31b3c5 73 if (obj->powerdown) {
AnnaBridge 172:7d866c31b3c5 74 obj->powerdown = pwmout_allow_powerdown();
AnnaBridge 172:7d866c31b3c5 75 }
AnnaBridge 172:7d866c31b3c5 76 // TODO: Check if other peripherals allow entering power-down mode
AnnaBridge 172:7d866c31b3c5 77
AnnaBridge 172:7d866c31b3c5 78 if (obj->powerdown) { // Power-down mode (HIRC/HXT disabled, LIRC/LXT enabled)
AnnaBridge 172:7d866c31b3c5 79 SYS_UnlockReg();
AnnaBridge 172:7d866c31b3c5 80 CLK_PowerDown();
AnnaBridge 172:7d866c31b3c5 81 SYS_LockReg();
AnnaBridge 172:7d866c31b3c5 82 } else { // CPU halt mode (HIRC/HXT enabled, LIRC/LXT enabled)
AnnaBridge 172:7d866c31b3c5 83 SYS_UnlockReg();
AnnaBridge 172:7d866c31b3c5 84 CLK_Idle();
AnnaBridge 172:7d866c31b3c5 85 SYS_LockReg();
AnnaBridge 172:7d866c31b3c5 86 }
AnnaBridge 172:7d866c31b3c5 87 __NOP();
AnnaBridge 172:7d866c31b3c5 88 __NOP();
AnnaBridge 172:7d866c31b3c5 89 __NOP();
AnnaBridge 172:7d866c31b3c5 90 __NOP();
AnnaBridge 172:7d866c31b3c5 91 }
AnnaBridge 172:7d866c31b3c5 92
AnnaBridge 172:7d866c31b3c5 93 static void mbed_exit_sleep(struct sleep_s *obj)
AnnaBridge 172:7d866c31b3c5 94 {
AnnaBridge 172:7d866c31b3c5 95 (void)obj;
AnnaBridge 172:7d866c31b3c5 96 }
AnnaBridge 172:7d866c31b3c5 97
AnnaBridge 172:7d866c31b3c5 98 #endif