mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

drivers/SerialWireOutput.h@187:0387e8f68319, 2018-09-06 (annotated)

Committer:
AnnaBridge
Date:
Thu Sep 06 13:40:20 2018 +0100
Revision:
187:0387e8f68319
Parent:
186:707f6e361f3e
Child:
188:bcfe06ba3d64
mbed-dev library. Release version 163

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 184:08ed48f1de7f 1 /* mbed Microcontroller Library
AnnaBridge 184:08ed48f1de7f 2 * Copyright (c) 2017 ARM Limited
AnnaBridge 184:08ed48f1de7f 3 *
AnnaBridge 184:08ed48f1de7f 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 184:08ed48f1de7f 5 * you may not use this file except in compliance with the License.
AnnaBridge 184:08ed48f1de7f 6 * You may obtain a copy of the License at
AnnaBridge 184:08ed48f1de7f 7 *
AnnaBridge 184:08ed48f1de7f 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 184:08ed48f1de7f 9 *
AnnaBridge 184:08ed48f1de7f 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 184:08ed48f1de7f 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 184:08ed48f1de7f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 184:08ed48f1de7f 13 * See the License for the specific language governing permissions and
AnnaBridge 184:08ed48f1de7f 14 * limitations under the License.
AnnaBridge 184:08ed48f1de7f 15 */
AnnaBridge 184:08ed48f1de7f 16
AnnaBridge 184:08ed48f1de7f 17 #if defined(DEVICE_ITM)
AnnaBridge 184:08ed48f1de7f 18
AnnaBridge 184:08ed48f1de7f 19 #include "hal/itm_api.h"
AnnaBridge 184:08ed48f1de7f 20 #include "platform/FileHandle.h"
AnnaBridge 184:08ed48f1de7f 21
Anna Bridge 186:707f6e361f3e 22 namespace mbed {
AnnaBridge 187:0387e8f68319 23
AnnaBridge 184:08ed48f1de7f 24 class SerialWireOutput : public FileHandle {
Anna Bridge 186:707f6e361f3e 25
AnnaBridge 184:08ed48f1de7f 26 public:
Anna Bridge 186:707f6e361f3e 27
AnnaBridge 184:08ed48f1de7f 28 SerialWireOutput(void)
AnnaBridge 184:08ed48f1de7f 29 {
AnnaBridge 184:08ed48f1de7f 30 /* Initialize ITM using internal init function. */
AnnaBridge 184:08ed48f1de7f 31 mbed_itm_init();
AnnaBridge 184:08ed48f1de7f 32 }
AnnaBridge 184:08ed48f1de7f 33
AnnaBridge 184:08ed48f1de7f 34 virtual ssize_t write(const void *buffer, size_t size)
AnnaBridge 184:08ed48f1de7f 35 {
AnnaBridge 187:0387e8f68319 36 mbed_itm_send_block(ITM_PORT_SWO, buffer, size);
AnnaBridge 184:08ed48f1de7f 37
AnnaBridge 184:08ed48f1de7f 38 return size;
AnnaBridge 184:08ed48f1de7f 39 }
AnnaBridge 184:08ed48f1de7f 40
AnnaBridge 184:08ed48f1de7f 41 virtual ssize_t read(void *buffer, size_t size)
AnnaBridge 184:08ed48f1de7f 42 {
AnnaBridge 184:08ed48f1de7f 43 /* Reading is not supported by this file handle */
AnnaBridge 184:08ed48f1de7f 44 return -EBADF;
AnnaBridge 184:08ed48f1de7f 45 }
AnnaBridge 184:08ed48f1de7f 46
AnnaBridge 184:08ed48f1de7f 47 virtual off_t seek(off_t offset, int whence = SEEK_SET)
AnnaBridge 184:08ed48f1de7f 48 {
AnnaBridge 184:08ed48f1de7f 49 /* Seeking is not support by this file handler */
AnnaBridge 184:08ed48f1de7f 50 return -ESPIPE;
AnnaBridge 184:08ed48f1de7f 51 }
AnnaBridge 184:08ed48f1de7f 52
AnnaBridge 184:08ed48f1de7f 53 virtual off_t size()
AnnaBridge 184:08ed48f1de7f 54 {
AnnaBridge 184:08ed48f1de7f 55 /* Size is not defined for this file handle */
AnnaBridge 184:08ed48f1de7f 56 return -EINVAL;
AnnaBridge 184:08ed48f1de7f 57 }
AnnaBridge 184:08ed48f1de7f 58
AnnaBridge 184:08ed48f1de7f 59 virtual int isatty()
AnnaBridge 184:08ed48f1de7f 60 {
AnnaBridge 184:08ed48f1de7f 61 /* File handle is used for terminal output */
AnnaBridge 184:08ed48f1de7f 62 return true;
AnnaBridge 184:08ed48f1de7f 63 }
AnnaBridge 184:08ed48f1de7f 64
AnnaBridge 184:08ed48f1de7f 65 virtual int close()
AnnaBridge 184:08ed48f1de7f 66 {
AnnaBridge 184:08ed48f1de7f 67 return 0;
AnnaBridge 184:08ed48f1de7f 68 }
AnnaBridge 184:08ed48f1de7f 69 };
AnnaBridge 187:0387e8f68319 70
Anna Bridge 186:707f6e361f3e 71 } // namespace mbed
AnnaBridge 184:08ed48f1de7f 72
AnnaBridge 184:08ed48f1de7f 73 #endif