Thomas Lyp / DevLibMemoryController

Initial commit

Dependencies:   FastPWM

mbed-dev-master/drivers/SerialWireOutput.h@0:bb348c97df44, 2020-09-16 (annotated)

Committer:
lypinator
Date:
Wed Sep 16 01:11:49 2020 +0000
Revision:
0:bb348c97df44
Added PWM

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lypinator 0:bb348c97df44 1 /* mbed Microcontroller Library
lypinator 0:bb348c97df44 2 * Copyright (c) 2017 ARM Limited
lypinator 0:bb348c97df44 3 *
lypinator 0:bb348c97df44 4 * Licensed under the Apache License, Version 2.0 (the "License");
lypinator 0:bb348c97df44 5 * you may not use this file except in compliance with the License.
lypinator 0:bb348c97df44 6 * You may obtain a copy of the License at
lypinator 0:bb348c97df44 7 *
lypinator 0:bb348c97df44 8 * http://www.apache.org/licenses/LICENSE-2.0
lypinator 0:bb348c97df44 9 *
lypinator 0:bb348c97df44 10 * Unless required by applicable law or agreed to in writing, software
lypinator 0:bb348c97df44 11 * distributed under the License is distributed on an "AS IS" BASIS,
lypinator 0:bb348c97df44 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
lypinator 0:bb348c97df44 13 * See the License for the specific language governing permissions and
lypinator 0:bb348c97df44 14 * limitations under the License.
lypinator 0:bb348c97df44 15 */
lypinator 0:bb348c97df44 16
lypinator 0:bb348c97df44 17 #if defined(DEVICE_ITM)
lypinator 0:bb348c97df44 18
lypinator 0:bb348c97df44 19 #include "hal/itm_api.h"
lypinator 0:bb348c97df44 20 #include "platform/FileHandle.h"
lypinator 0:bb348c97df44 21
lypinator 0:bb348c97df44 22 namespace mbed {
lypinator 0:bb348c97df44 23
lypinator 0:bb348c97df44 24 class SerialWireOutput : public FileHandle {
lypinator 0:bb348c97df44 25
lypinator 0:bb348c97df44 26 public:
lypinator 0:bb348c97df44 27
lypinator 0:bb348c97df44 28 SerialWireOutput(void)
lypinator 0:bb348c97df44 29 {
lypinator 0:bb348c97df44 30 /* Initialize ITM using internal init function. */
lypinator 0:bb348c97df44 31 mbed_itm_init();
lypinator 0:bb348c97df44 32 }
lypinator 0:bb348c97df44 33
lypinator 0:bb348c97df44 34 virtual ssize_t write(const void *buffer, size_t size)
lypinator 0:bb348c97df44 35 {
lypinator 0:bb348c97df44 36 mbed_itm_send_block(ITM_PORT_SWO, buffer, size);
lypinator 0:bb348c97df44 37
lypinator 0:bb348c97df44 38 return size;
lypinator 0:bb348c97df44 39 }
lypinator 0:bb348c97df44 40
lypinator 0:bb348c97df44 41 virtual ssize_t read(void *buffer, size_t size)
lypinator 0:bb348c97df44 42 {
lypinator 0:bb348c97df44 43 /* Reading is not supported by this file handle */
lypinator 0:bb348c97df44 44 return -EBADF;
lypinator 0:bb348c97df44 45 }
lypinator 0:bb348c97df44 46
lypinator 0:bb348c97df44 47 virtual off_t seek(off_t offset, int whence = SEEK_SET)
lypinator 0:bb348c97df44 48 {
lypinator 0:bb348c97df44 49 /* Seeking is not support by this file handler */
lypinator 0:bb348c97df44 50 return -ESPIPE;
lypinator 0:bb348c97df44 51 }
lypinator 0:bb348c97df44 52
lypinator 0:bb348c97df44 53 virtual off_t size()
lypinator 0:bb348c97df44 54 {
lypinator 0:bb348c97df44 55 /* Size is not defined for this file handle */
lypinator 0:bb348c97df44 56 return -EINVAL;
lypinator 0:bb348c97df44 57 }
lypinator 0:bb348c97df44 58
lypinator 0:bb348c97df44 59 virtual int isatty()
lypinator 0:bb348c97df44 60 {
lypinator 0:bb348c97df44 61 /* File handle is used for terminal output */
lypinator 0:bb348c97df44 62 return true;
lypinator 0:bb348c97df44 63 }
lypinator 0:bb348c97df44 64
lypinator 0:bb348c97df44 65 virtual int close()
lypinator 0:bb348c97df44 66 {
lypinator 0:bb348c97df44 67 return 0;
lypinator 0:bb348c97df44 68 }
lypinator 0:bb348c97df44 69 };
lypinator 0:bb348c97df44 70
lypinator 0:bb348c97df44 71 } // namespace mbed
lypinator 0:bb348c97df44 72
lypinator 0:bb348c97df44 73 #endif