mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
platform/mbed_wait_api_rtos.cpp@187:0387e8f68319, 2018-09-06 (annotated)
- Committer:
- AnnaBridge
- Date:
- Thu Sep 06 13:40:20 2018 +0100
- Revision:
- 187:0387e8f68319
- Parent:
- 184:08ed48f1de7f
- Child:
- 189:f392fc9709a3
mbed-dev library. Release version 163
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 149:156823d33999 | 1 | /* mbed Microcontroller Library |
<> | 149:156823d33999 | 2 | * Copyright (c) 2006-2013 ARM Limited |
<> | 149:156823d33999 | 3 | * |
<> | 149:156823d33999 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
<> | 149:156823d33999 | 5 | * you may not use this file except in compliance with the License. |
<> | 149:156823d33999 | 6 | * You may obtain a copy of the License at |
<> | 149:156823d33999 | 7 | * |
<> | 149:156823d33999 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
<> | 149:156823d33999 | 9 | * |
<> | 149:156823d33999 | 10 | * Unless required by applicable law or agreed to in writing, software |
<> | 149:156823d33999 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
<> | 149:156823d33999 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
<> | 149:156823d33999 | 13 | * See the License for the specific language governing permissions and |
<> | 149:156823d33999 | 14 | * limitations under the License. |
<> | 149:156823d33999 | 15 | */ |
<> | 149:156823d33999 | 16 | |
<> | 149:156823d33999 | 17 | // This implementation of the wait functions will be compiled only |
<> | 149:156823d33999 | 18 | // if the RTOS is present. |
<> | 149:156823d33999 | 19 | #ifdef MBED_CONF_RTOS_PRESENT |
<> | 149:156823d33999 | 20 | |
<> | 160:d5399cc887bb | 21 | #include "platform/mbed_wait_api.h" |
<> | 149:156823d33999 | 22 | #include "hal/us_ticker_api.h" |
<> | 149:156823d33999 | 23 | #include "rtos/rtos.h" |
<> | 160:d5399cc887bb | 24 | #include "platform/mbed_critical.h" |
AnnaBridge | 184:08ed48f1de7f | 25 | #include "platform/mbed_power_mgmt.h" |
<> | 149:156823d33999 | 26 | |
AnnaBridge | 187:0387e8f68319 | 27 | void wait(float s) |
AnnaBridge | 187:0387e8f68319 | 28 | { |
<> | 149:156823d33999 | 29 | wait_us(s * 1000000.0f); |
<> | 149:156823d33999 | 30 | } |
<> | 149:156823d33999 | 31 | |
AnnaBridge | 187:0387e8f68319 | 32 | void wait_ms(int ms) |
AnnaBridge | 187:0387e8f68319 | 33 | { |
<> | 149:156823d33999 | 34 | wait_us(ms * 1000); |
<> | 149:156823d33999 | 35 | } |
<> | 149:156823d33999 | 36 | |
AnnaBridge | 187:0387e8f68319 | 37 | void wait_us(int us) |
AnnaBridge | 187:0387e8f68319 | 38 | { |
AnnaBridge | 175:af195413fb11 | 39 | const ticker_data_t *const ticker = get_us_ticker_data(); |
AnnaBridge | 175:af195413fb11 | 40 | |
AnnaBridge | 175:af195413fb11 | 41 | uint32_t start = ticker_read(ticker); |
AnnaBridge | 187:0387e8f68319 | 42 | if ((us >= 1000) && core_util_are_interrupts_enabled()) { |
AnnaBridge | 187:0387e8f68319 | 43 | // Use the RTOS to wait for millisecond delays if possible |
AnnaBridge | 175:af195413fb11 | 44 | sleep_manager_lock_deep_sleep(); |
AnnaBridge | 187:0387e8f68319 | 45 | Thread::wait((uint32_t)us / 1000); |
AnnaBridge | 175:af195413fb11 | 46 | sleep_manager_unlock_deep_sleep(); |
<> | 149:156823d33999 | 47 | } |
<> | 149:156823d33999 | 48 | // Use busy waiting for sub-millisecond delays, or for the whole |
<> | 149:156823d33999 | 49 | // interval if interrupts are not enabled |
AnnaBridge | 175:af195413fb11 | 50 | while ((ticker_read(ticker) - start) < (uint32_t)us); |
<> | 149:156823d33999 | 51 | } |
<> | 149:156823d33999 | 52 | |
<> | 149:156823d33999 | 53 | #endif // #if MBED_CONF_RTOS_PRESENT |
<> | 149:156823d33999 | 54 |