mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_NUVOTON/TARGET_NANO100/sleep.c@174:b96e65c34a4d, 2017-10-02 (annotated)

Committer:
AnnaBridge
Date:
Mon Oct 02 15:33:19 2017 +0100
Revision:
174:b96e65c34a4d
Child:
176:447f873cad2f
This updates the lib to the mbed lib v 152

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 174:b96e65c34a4d 1 /* mbed Microcontroller Library
AnnaBridge 174:b96e65c34a4d 2 * Copyright (c) 2015-2017 Nuvoton
AnnaBridge 174:b96e65c34a4d 3 *
AnnaBridge 174:b96e65c34a4d 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 174:b96e65c34a4d 5 * you may not use this file except in compliance with the License.
AnnaBridge 174:b96e65c34a4d 6 * You may obtain a copy of the License at
AnnaBridge 174:b96e65c34a4d 7 *
AnnaBridge 174:b96e65c34a4d 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 174:b96e65c34a4d 9 *
AnnaBridge 174:b96e65c34a4d 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 174:b96e65c34a4d 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 174:b96e65c34a4d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 174:b96e65c34a4d 13 * See the License for the specific language governing permissions and
AnnaBridge 174:b96e65c34a4d 14 * limitations under the License.
AnnaBridge 174:b96e65c34a4d 15 */
AnnaBridge 174:b96e65c34a4d 16
AnnaBridge 174:b96e65c34a4d 17 #include "sleep_api.h"
AnnaBridge 174:b96e65c34a4d 18 #include "serial_api.h"
AnnaBridge 174:b96e65c34a4d 19 #include "lp_ticker_api.h"
AnnaBridge 174:b96e65c34a4d 20
AnnaBridge 174:b96e65c34a4d 21 #if DEVICE_SLEEP
AnnaBridge 174:b96e65c34a4d 22
AnnaBridge 174:b96e65c34a4d 23 #include "cmsis.h"
AnnaBridge 174:b96e65c34a4d 24 #include "device.h"
AnnaBridge 174:b96e65c34a4d 25 #include "objects.h"
AnnaBridge 174:b96e65c34a4d 26 #include "PeripheralPins.h"
AnnaBridge 174:b96e65c34a4d 27
AnnaBridge 174:b96e65c34a4d 28 static void mbed_enter_sleep(struct sleep_s *obj);
AnnaBridge 174:b96e65c34a4d 29 static void mbed_exit_sleep(struct sleep_s *obj);
AnnaBridge 174:b96e65c34a4d 30
AnnaBridge 174:b96e65c34a4d 31 int serial_allow_powerdown(void);
AnnaBridge 174:b96e65c34a4d 32 int spi_allow_powerdown(void);
AnnaBridge 174:b96e65c34a4d 33 int i2c_allow_powerdown(void);
AnnaBridge 174:b96e65c34a4d 34 int pwmout_allow_powerdown(void);
AnnaBridge 174:b96e65c34a4d 35
AnnaBridge 174:b96e65c34a4d 36 /**
AnnaBridge 174:b96e65c34a4d 37 * Enter Idle mode.
AnnaBridge 174:b96e65c34a4d 38 */
AnnaBridge 174:b96e65c34a4d 39 void hal_sleep(void)
AnnaBridge 174:b96e65c34a4d 40 {
AnnaBridge 174:b96e65c34a4d 41 struct sleep_s sleep_obj;
AnnaBridge 174:b96e65c34a4d 42 sleep_obj.powerdown = 0;
AnnaBridge 174:b96e65c34a4d 43 mbed_enter_sleep(&sleep_obj);
AnnaBridge 174:b96e65c34a4d 44 mbed_exit_sleep(&sleep_obj);
AnnaBridge 174:b96e65c34a4d 45 }
AnnaBridge 174:b96e65c34a4d 46
AnnaBridge 174:b96e65c34a4d 47 /**
AnnaBridge 174:b96e65c34a4d 48 * Enter Power-down mode while no peripheral is active; otherwise, enter Idle mode.
AnnaBridge 174:b96e65c34a4d 49 */
AnnaBridge 174:b96e65c34a4d 50 void hal_deepsleep(void)
AnnaBridge 174:b96e65c34a4d 51 {
AnnaBridge 174:b96e65c34a4d 52 struct sleep_s sleep_obj;
AnnaBridge 174:b96e65c34a4d 53 sleep_obj.powerdown = 1;
AnnaBridge 174:b96e65c34a4d 54 mbed_enter_sleep(&sleep_obj);
AnnaBridge 174:b96e65c34a4d 55 mbed_exit_sleep(&sleep_obj);
AnnaBridge 174:b96e65c34a4d 56 }
AnnaBridge 174:b96e65c34a4d 57
AnnaBridge 174:b96e65c34a4d 58 static void mbed_enter_sleep(struct sleep_s *obj)
AnnaBridge 174:b96e65c34a4d 59 {
AnnaBridge 174:b96e65c34a4d 60 // Check if serial allows entering power-down mode
AnnaBridge 174:b96e65c34a4d 61 if (obj->powerdown) {
AnnaBridge 174:b96e65c34a4d 62 obj->powerdown = serial_allow_powerdown();
AnnaBridge 174:b96e65c34a4d 63 }
AnnaBridge 174:b96e65c34a4d 64 // Check if spi allows entering power-down mode
AnnaBridge 174:b96e65c34a4d 65 if (obj->powerdown) {
AnnaBridge 174:b96e65c34a4d 66 obj->powerdown = spi_allow_powerdown();
AnnaBridge 174:b96e65c34a4d 67 }
AnnaBridge 174:b96e65c34a4d 68 // Check if i2c allows entering power-down mode
AnnaBridge 174:b96e65c34a4d 69 if (obj->powerdown) {
AnnaBridge 174:b96e65c34a4d 70 obj->powerdown = i2c_allow_powerdown();
AnnaBridge 174:b96e65c34a4d 71 }
AnnaBridge 174:b96e65c34a4d 72 // Check if pwmout allows entering power-down mode
AnnaBridge 174:b96e65c34a4d 73 if (obj->powerdown) {
AnnaBridge 174:b96e65c34a4d 74 obj->powerdown = pwmout_allow_powerdown();
AnnaBridge 174:b96e65c34a4d 75 }
AnnaBridge 174:b96e65c34a4d 76 // TODO: Check if other peripherals allow entering power-down mode
AnnaBridge 174:b96e65c34a4d 77
AnnaBridge 174:b96e65c34a4d 78 if (obj->powerdown) { // Power-down mode (HIRC/HXT disabled, LIRC/LXT enabled)
AnnaBridge 174:b96e65c34a4d 79 SYS_UnlockReg();
AnnaBridge 174:b96e65c34a4d 80 CLK_PowerDown();
AnnaBridge 174:b96e65c34a4d 81 SYS_LockReg();
AnnaBridge 174:b96e65c34a4d 82 } else { // CPU halt mode (HIRC/HXT enabled, LIRC/LXT enabled)
AnnaBridge 174:b96e65c34a4d 83 SYS_UnlockReg();
AnnaBridge 174:b96e65c34a4d 84 CLK_Idle();
AnnaBridge 174:b96e65c34a4d 85 SYS_LockReg();
AnnaBridge 174:b96e65c34a4d 86 }
AnnaBridge 174:b96e65c34a4d 87 __NOP();
AnnaBridge 174:b96e65c34a4d 88 __NOP();
AnnaBridge 174:b96e65c34a4d 89 __NOP();
AnnaBridge 174:b96e65c34a4d 90 __NOP();
AnnaBridge 174:b96e65c34a4d 91 }
AnnaBridge 174:b96e65c34a4d 92
AnnaBridge 174:b96e65c34a4d 93 static void mbed_exit_sleep(struct sleep_s *obj)
AnnaBridge 174:b96e65c34a4d 94 {
AnnaBridge 174:b96e65c34a4d 95 (void)obj;
AnnaBridge 174:b96e65c34a4d 96 }
AnnaBridge 174:b96e65c34a4d 97
AnnaBridge 174:b96e65c34a4d 98 #endif