Kev Mann / mbed-dev-OS5_10_4

RTC auf true

drivers/SerialWireOutput.h@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* mbed Microcontroller Library
kevman 0:38ceb79fef03 2 * Copyright (c) 2017 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16
kevman 0:38ceb79fef03 17 #ifndef MBED_SERIALWIREOUTPUT_H
kevman 0:38ceb79fef03 18 #define MBED_SERIALWIREOUTPUT_H
kevman 0:38ceb79fef03 19
kevman 0:38ceb79fef03 20 #if defined(DEVICE_ITM)
kevman 0:38ceb79fef03 21
kevman 0:38ceb79fef03 22 #include "hal/itm_api.h"
kevman 0:38ceb79fef03 23 #include "platform/FileHandle.h"
kevman 0:38ceb79fef03 24
kevman 0:38ceb79fef03 25 namespace mbed {
kevman 0:38ceb79fef03 26
kevman 0:38ceb79fef03 27 class SerialWireOutput : public FileHandle {
kevman 0:38ceb79fef03 28
kevman 0:38ceb79fef03 29 public:
kevman 0:38ceb79fef03 30
kevman 0:38ceb79fef03 31 SerialWireOutput(void)
kevman 0:38ceb79fef03 32 {
kevman 0:38ceb79fef03 33 /* Initialize ITM using internal init function. */
kevman 0:38ceb79fef03 34 mbed_itm_init();
kevman 0:38ceb79fef03 35 }
kevman 0:38ceb79fef03 36
kevman 0:38ceb79fef03 37 virtual ssize_t write(const void *buffer, size_t size)
kevman 0:38ceb79fef03 38 {
kevman 0:38ceb79fef03 39 mbed_itm_send_block(ITM_PORT_SWO, buffer, size);
kevman 0:38ceb79fef03 40
kevman 0:38ceb79fef03 41 return size;
kevman 0:38ceb79fef03 42 }
kevman 0:38ceb79fef03 43
kevman 0:38ceb79fef03 44 virtual ssize_t read(void *buffer, size_t size)
kevman 0:38ceb79fef03 45 {
kevman 0:38ceb79fef03 46 /* Reading is not supported by this file handle */
kevman 0:38ceb79fef03 47 return -EBADF;
kevman 0:38ceb79fef03 48 }
kevman 0:38ceb79fef03 49
kevman 0:38ceb79fef03 50 virtual off_t seek(off_t offset, int whence = SEEK_SET)
kevman 0:38ceb79fef03 51 {
kevman 0:38ceb79fef03 52 /* Seeking is not support by this file handler */
kevman 0:38ceb79fef03 53 return -ESPIPE;
kevman 0:38ceb79fef03 54 }
kevman 0:38ceb79fef03 55
kevman 0:38ceb79fef03 56 virtual off_t size()
kevman 0:38ceb79fef03 57 {
kevman 0:38ceb79fef03 58 /* Size is not defined for this file handle */
kevman 0:38ceb79fef03 59 return -EINVAL;
kevman 0:38ceb79fef03 60 }
kevman 0:38ceb79fef03 61
kevman 0:38ceb79fef03 62 virtual int isatty()
kevman 0:38ceb79fef03 63 {
kevman 0:38ceb79fef03 64 /* File handle is used for terminal output */
kevman 0:38ceb79fef03 65 return true;
kevman 0:38ceb79fef03 66 }
kevman 0:38ceb79fef03 67
kevman 0:38ceb79fef03 68 virtual int close()
kevman 0:38ceb79fef03 69 {
kevman 0:38ceb79fef03 70 return 0;
kevman 0:38ceb79fef03 71 }
kevman 0:38ceb79fef03 72 };
kevman 0:38ceb79fef03 73
kevman 0:38ceb79fef03 74 } // namespace mbed
kevman 0:38ceb79fef03 75
kevman 0:38ceb79fef03 76 #endif // DEVICE_ITM
kevman 0:38ceb79fef03 77
kevman 0:38ceb79fef03 78 #endif // MBED_SERIALWIREOUTPUT_H