Kenji Arai / mbed-os_TYBLE16

mbed-os5 only for TYBLE16

Dependents:   TYBLE16_simple_data_logger TYBLE16_MP3_Air

drivers/source/UnbufferedSerial.cpp@1:9db0e321a9f4, 2019-12-31 (annotated)

Committer:
kenjiArai
Date:
Tue Dec 31 06:02:27 2019 +0000
Revision:
1:9db0e321a9f4
updated based on mbed-os5.15.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 1:9db0e321a9f4 1 /* mbed Microcontroller Library
kenjiArai 1:9db0e321a9f4 2 * Copyright (c) 2006-2019 ARM Limited
kenjiArai 1:9db0e321a9f4 3 * SPDX-License-Identifier: Apache-2.0
kenjiArai 1:9db0e321a9f4 4 *
kenjiArai 1:9db0e321a9f4 5 * Licensed under the Apache License, Version 2.0 (the "License");
kenjiArai 1:9db0e321a9f4 6 * you may not use this file except in compliance with the License.
kenjiArai 1:9db0e321a9f4 7 * You may obtain a copy of the License at
kenjiArai 1:9db0e321a9f4 8 *
kenjiArai 1:9db0e321a9f4 9 * http://www.apache.org/licenses/LICENSE-2.0
kenjiArai 1:9db0e321a9f4 10 *
kenjiArai 1:9db0e321a9f4 11 * Unless required by applicable law or agreed to in writing, software
kenjiArai 1:9db0e321a9f4 12 * distributed under the License is distributed on an "AS IS" BASIS,
kenjiArai 1:9db0e321a9f4 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kenjiArai 1:9db0e321a9f4 14 * See the License for the specific language governing permissions and
kenjiArai 1:9db0e321a9f4 15 * limitations under the License.
kenjiArai 1:9db0e321a9f4 16 */
kenjiArai 1:9db0e321a9f4 17
kenjiArai 1:9db0e321a9f4 18 #include "drivers/UnbufferedSerial.h"
kenjiArai 1:9db0e321a9f4 19
kenjiArai 1:9db0e321a9f4 20 #if DEVICE_SERIAL
kenjiArai 1:9db0e321a9f4 21
kenjiArai 1:9db0e321a9f4 22 #include "platform/mbed_critical.h"
kenjiArai 1:9db0e321a9f4 23
kenjiArai 1:9db0e321a9f4 24 namespace mbed {
kenjiArai 1:9db0e321a9f4 25
kenjiArai 1:9db0e321a9f4 26 UnbufferedSerial::UnbufferedSerial(
kenjiArai 1:9db0e321a9f4 27 PinName tx,
kenjiArai 1:9db0e321a9f4 28 PinName rx,
kenjiArai 1:9db0e321a9f4 29 int baud
kenjiArai 1:9db0e321a9f4 30 ) : SerialBase(tx, rx, baud)
kenjiArai 1:9db0e321a9f4 31 {
kenjiArai 1:9db0e321a9f4 32 // No lock needed in the constructor
kenjiArai 1:9db0e321a9f4 33 }
kenjiArai 1:9db0e321a9f4 34
kenjiArai 1:9db0e321a9f4 35 UnbufferedSerial::UnbufferedSerial(
kenjiArai 1:9db0e321a9f4 36 const serial_pinmap_t &static_pinmap, int baud
kenjiArai 1:9db0e321a9f4 37 ) : SerialBase(static_pinmap, baud)
kenjiArai 1:9db0e321a9f4 38 {
kenjiArai 1:9db0e321a9f4 39 // No lock needed in the constructor
kenjiArai 1:9db0e321a9f4 40 }
kenjiArai 1:9db0e321a9f4 41
kenjiArai 1:9db0e321a9f4 42 ssize_t UnbufferedSerial::write(const void *buffer, size_t size)
kenjiArai 1:9db0e321a9f4 43 {
kenjiArai 1:9db0e321a9f4 44 const unsigned char *buf = static_cast<const unsigned char *>(buffer);
kenjiArai 1:9db0e321a9f4 45
kenjiArai 1:9db0e321a9f4 46 if (size == 0) {
kenjiArai 1:9db0e321a9f4 47 return 0;
kenjiArai 1:9db0e321a9f4 48 }
kenjiArai 1:9db0e321a9f4 49
kenjiArai 1:9db0e321a9f4 50 bool lock_api = !core_util_in_critical_section();
kenjiArai 1:9db0e321a9f4 51
kenjiArai 1:9db0e321a9f4 52 if (lock_api) {
kenjiArai 1:9db0e321a9f4 53 lock();
kenjiArai 1:9db0e321a9f4 54 }
kenjiArai 1:9db0e321a9f4 55
kenjiArai 1:9db0e321a9f4 56 for (size_t i = 0; i < size; i++) {
kenjiArai 1:9db0e321a9f4 57 _base_putc(buf[i]);
kenjiArai 1:9db0e321a9f4 58 }
kenjiArai 1:9db0e321a9f4 59
kenjiArai 1:9db0e321a9f4 60 if (lock_api) {
kenjiArai 1:9db0e321a9f4 61 unlock();
kenjiArai 1:9db0e321a9f4 62 }
kenjiArai 1:9db0e321a9f4 63
kenjiArai 1:9db0e321a9f4 64 return size;
kenjiArai 1:9db0e321a9f4 65 }
kenjiArai 1:9db0e321a9f4 66
kenjiArai 1:9db0e321a9f4 67 ssize_t UnbufferedSerial::read(void *buffer, size_t size)
kenjiArai 1:9db0e321a9f4 68 {
kenjiArai 1:9db0e321a9f4 69 unsigned char *buf = static_cast<unsigned char *>(buffer);
kenjiArai 1:9db0e321a9f4 70
kenjiArai 1:9db0e321a9f4 71 if (size == 0) {
kenjiArai 1:9db0e321a9f4 72 return 0;
kenjiArai 1:9db0e321a9f4 73 }
kenjiArai 1:9db0e321a9f4 74
kenjiArai 1:9db0e321a9f4 75 lock();
kenjiArai 1:9db0e321a9f4 76
kenjiArai 1:9db0e321a9f4 77 buf[0] = _base_getc();
kenjiArai 1:9db0e321a9f4 78
kenjiArai 1:9db0e321a9f4 79 unlock();
kenjiArai 1:9db0e321a9f4 80
kenjiArai 1:9db0e321a9f4 81 return 1;
kenjiArai 1:9db0e321a9f4 82 }
kenjiArai 1:9db0e321a9f4 83
kenjiArai 1:9db0e321a9f4 84 short UnbufferedSerial::poll(short events) const
kenjiArai 1:9db0e321a9f4 85 {
kenjiArai 1:9db0e321a9f4 86 short revents = 0;
kenjiArai 1:9db0e321a9f4 87 if (
kenjiArai 1:9db0e321a9f4 88 (events & POLLIN)
kenjiArai 1:9db0e321a9f4 89 && (const_cast <UnbufferedSerial *>(this))->SerialBase::readable()
kenjiArai 1:9db0e321a9f4 90 ) {
kenjiArai 1:9db0e321a9f4 91 revents |= POLLIN;
kenjiArai 1:9db0e321a9f4 92 }
kenjiArai 1:9db0e321a9f4 93 if (
kenjiArai 1:9db0e321a9f4 94 (events & POLLOUT)
kenjiArai 1:9db0e321a9f4 95 && (const_cast <UnbufferedSerial *>(this))->SerialBase::writeable()
kenjiArai 1:9db0e321a9f4 96 ) {
kenjiArai 1:9db0e321a9f4 97 revents |= POLLOUT;
kenjiArai 1:9db0e321a9f4 98 }
kenjiArai 1:9db0e321a9f4 99 return revents;
kenjiArai 1:9db0e321a9f4 100 }
kenjiArai 1:9db0e321a9f4 101
kenjiArai 1:9db0e321a9f4 102 #if DEVICE_SERIAL_FC
kenjiArai 1:9db0e321a9f4 103 void UnbufferedSerial::set_flow_control(Flow type, PinName flow1, PinName flow2)
kenjiArai 1:9db0e321a9f4 104 {
kenjiArai 1:9db0e321a9f4 105 lock();
kenjiArai 1:9db0e321a9f4 106 SerialBase::set_flow_control(type, flow1, flow2);
kenjiArai 1:9db0e321a9f4 107 unlock();
kenjiArai 1:9db0e321a9f4 108 }
kenjiArai 1:9db0e321a9f4 109 #endif // DEVICE_SERIAL_FC
kenjiArai 1:9db0e321a9f4 110
kenjiArai 1:9db0e321a9f4 111 } // namespace mbed
kenjiArai 1:9db0e321a9f4 112
kenjiArai 1:9db0e321a9f4 113 #endif // #if DEVICE_SERIAL