Theo/Ludo/Joe / ER2_Labyrinthe_V3

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Dependencies:   mbed

ER2_Robot/mbed/drivers/SerialWireOutput.h@0:1a801a2a7b4b, 2019-02-15 (annotated)

Committer:
joehatier
Date:
Fri Feb 15 15:25:57 2019 +0000
Revision:
0:1a801a2a7b4b
suivi;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
joehatier 0:1a801a2a7b4b 1 /* mbed Microcontroller Library
joehatier 0:1a801a2a7b4b 2 * Copyright (c) 2017 ARM Limited
joehatier 0:1a801a2a7b4b 3 *
joehatier 0:1a801a2a7b4b 4 * Licensed under the Apache License, Version 2.0 (the "License");
joehatier 0:1a801a2a7b4b 5 * you may not use this file except in compliance with the License.
joehatier 0:1a801a2a7b4b 6 * You may obtain a copy of the License at
joehatier 0:1a801a2a7b4b 7 *
joehatier 0:1a801a2a7b4b 8 * http://www.apache.org/licenses/LICENSE-2.0
joehatier 0:1a801a2a7b4b 9 *
joehatier 0:1a801a2a7b4b 10 * Unless required by applicable law or agreed to in writing, software
joehatier 0:1a801a2a7b4b 11 * distributed under the License is distributed on an "AS IS" BASIS,
joehatier 0:1a801a2a7b4b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
joehatier 0:1a801a2a7b4b 13 * See the License for the specific language governing permissions and
joehatier 0:1a801a2a7b4b 14 * limitations under the License.
joehatier 0:1a801a2a7b4b 15 */
joehatier 0:1a801a2a7b4b 16
joehatier 0:1a801a2a7b4b 17 #ifndef MBED_SERIALWIREOUTPUT_H
joehatier 0:1a801a2a7b4b 18 #define MBED_SERIALWIREOUTPUT_H
joehatier 0:1a801a2a7b4b 19
joehatier 0:1a801a2a7b4b 20 #if defined(DEVICE_ITM)
joehatier 0:1a801a2a7b4b 21
joehatier 0:1a801a2a7b4b 22 #include "hal/itm_api.h"
joehatier 0:1a801a2a7b4b 23 #include "platform/FileHandle.h"
joehatier 0:1a801a2a7b4b 24
joehatier 0:1a801a2a7b4b 25 namespace mbed {
joehatier 0:1a801a2a7b4b 26
joehatier 0:1a801a2a7b4b 27 class SerialWireOutput : public FileHandle {
joehatier 0:1a801a2a7b4b 28
joehatier 0:1a801a2a7b4b 29 public:
joehatier 0:1a801a2a7b4b 30
joehatier 0:1a801a2a7b4b 31 SerialWireOutput(void)
joehatier 0:1a801a2a7b4b 32 {
joehatier 0:1a801a2a7b4b 33 /* Initialize ITM using internal init function. */
joehatier 0:1a801a2a7b4b 34 mbed_itm_init();
joehatier 0:1a801a2a7b4b 35 }
joehatier 0:1a801a2a7b4b 36
joehatier 0:1a801a2a7b4b 37 virtual ssize_t write(const void *buffer, size_t size)
joehatier 0:1a801a2a7b4b 38 {
joehatier 0:1a801a2a7b4b 39 mbed_itm_send_block(ITM_PORT_SWO, buffer, size);
joehatier 0:1a801a2a7b4b 40
joehatier 0:1a801a2a7b4b 41 return size;
joehatier 0:1a801a2a7b4b 42 }
joehatier 0:1a801a2a7b4b 43
joehatier 0:1a801a2a7b4b 44 virtual ssize_t read(void *buffer, size_t size)
joehatier 0:1a801a2a7b4b 45 {
joehatier 0:1a801a2a7b4b 46 /* Reading is not supported by this file handle */
joehatier 0:1a801a2a7b4b 47 return -EBADF;
joehatier 0:1a801a2a7b4b 48 }
joehatier 0:1a801a2a7b4b 49
joehatier 0:1a801a2a7b4b 50 virtual off_t seek(off_t offset, int whence = SEEK_SET)
joehatier 0:1a801a2a7b4b 51 {
joehatier 0:1a801a2a7b4b 52 /* Seeking is not support by this file handler */
joehatier 0:1a801a2a7b4b 53 return -ESPIPE;
joehatier 0:1a801a2a7b4b 54 }
joehatier 0:1a801a2a7b4b 55
joehatier 0:1a801a2a7b4b 56 virtual off_t size()
joehatier 0:1a801a2a7b4b 57 {
joehatier 0:1a801a2a7b4b 58 /* Size is not defined for this file handle */
joehatier 0:1a801a2a7b4b 59 return -EINVAL;
joehatier 0:1a801a2a7b4b 60 }
joehatier 0:1a801a2a7b4b 61
joehatier 0:1a801a2a7b4b 62 virtual int isatty()
joehatier 0:1a801a2a7b4b 63 {
joehatier 0:1a801a2a7b4b 64 /* File handle is used for terminal output */
joehatier 0:1a801a2a7b4b 65 return true;
joehatier 0:1a801a2a7b4b 66 }
joehatier 0:1a801a2a7b4b 67
joehatier 0:1a801a2a7b4b 68 virtual int close()
joehatier 0:1a801a2a7b4b 69 {
joehatier 0:1a801a2a7b4b 70 return 0;
joehatier 0:1a801a2a7b4b 71 }
joehatier 0:1a801a2a7b4b 72 };
joehatier 0:1a801a2a7b4b 73
joehatier 0:1a801a2a7b4b 74 } // namespace mbed
joehatier 0:1a801a2a7b4b 75
joehatier 0:1a801a2a7b4b 76 #endif // DEVICE_ITM
joehatier 0:1a801a2a7b4b 77
joehatier 0:1a801a2a7b4b 78 #endif // MBED_SERIALWIREOUTPUT_H