Wei Chang Shen / DMSupport

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Dependencies:   DM_FATFileSystem EthernetInterface HTTPClient mbed-rtos mbed-src

Fork of DMSupport by Embedded Artists

RtosLog.h@2:887c6b45e7fa, 2014-12-02 (annotated)

Committer:
embeddedartists
Date:
Tue Dec 02 15:21:18 2014 +0000
Revision:
2:887c6b45e7fa
Child:
9:a33326afd686
Added RTOS-safe logger (RtosLog). Switched USBHost library so that it works in an RTOS setting. Modified the FAT file system to work in an RTOS setting.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 2:887c6b45e7fa 1 /*
embeddedartists 2:887c6b45e7fa 2 * Copyright 2014 Embedded Artists AB
embeddedartists 2:887c6b45e7fa 3 *
embeddedartists 2:887c6b45e7fa 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 2:887c6b45e7fa 5 * you may not use this file except in compliance with the License.
embeddedartists 2:887c6b45e7fa 6 * You may obtain a copy of the License at
embeddedartists 2:887c6b45e7fa 7 *
embeddedartists 2:887c6b45e7fa 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 2:887c6b45e7fa 9 *
embeddedartists 2:887c6b45e7fa 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 2:887c6b45e7fa 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 2:887c6b45e7fa 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 2:887c6b45e7fa 13 * See the License for the specific language governing permissions and
embeddedartists 2:887c6b45e7fa 14 * limitations under the License.
embeddedartists 2:887c6b45e7fa 15 */
embeddedartists 2:887c6b45e7fa 16
embeddedartists 2:887c6b45e7fa 17 #ifndef RTOSLOG_H
embeddedartists 2:887c6b45e7fa 18 #define RTOSLOG_H
embeddedartists 2:887c6b45e7fa 19
embeddedartists 2:887c6b45e7fa 20 #include "mbed.h"
embeddedartists 2:887c6b45e7fa 21 #include "rtos.h"
embeddedartists 2:887c6b45e7fa 22 #include "dm_board_config.h"
embeddedartists 2:887c6b45e7fa 23
embeddedartists 2:887c6b45e7fa 24 /**
embeddedartists 2:887c6b45e7fa 25 * All threads can independantly call the printf function in the RtosLog class
embeddedartists 2:887c6b45e7fa 26 * without risc of getting the output tangled up.
embeddedartists 2:887c6b45e7fa 27 *
embeddedartists 2:887c6b45e7fa 28 * The RtosLog class uses a Thread to process the messages one at a time.
embeddedartists 2:887c6b45e7fa 29 */
embeddedartists 2:887c6b45e7fa 30 class RtosLog {
embeddedartists 2:887c6b45e7fa 31 public:
embeddedartists 2:887c6b45e7fa 32 enum Constants {
embeddedartists 2:887c6b45e7fa 33 MessageLen = 80,
embeddedartists 2:887c6b45e7fa 34 NumMessages = 16,
embeddedartists 2:887c6b45e7fa 35 };
embeddedartists 2:887c6b45e7fa 36
embeddedartists 2:887c6b45e7fa 37 RtosLog();
embeddedartists 2:887c6b45e7fa 38 ~RtosLog();
embeddedartists 2:887c6b45e7fa 39
embeddedartists 2:887c6b45e7fa 40 /** Starts the logger thread
embeddedartists 2:887c6b45e7fa 41 */
embeddedartists 2:887c6b45e7fa 42 void init();
embeddedartists 2:887c6b45e7fa 43
embeddedartists 2:887c6b45e7fa 44 int printf(const char* format, ...);
embeddedartists 2:887c6b45e7fa 45
embeddedartists 2:887c6b45e7fa 46 private:
embeddedartists 2:887c6b45e7fa 47
embeddedartists 2:887c6b45e7fa 48 typedef struct {
embeddedartists 2:887c6b45e7fa 49 char* ptr; /* Non-NULL if memory is allocated */
embeddedartists 2:887c6b45e7fa 50 char msg[MessageLen+1]; /* A counter value */
embeddedartists 2:887c6b45e7fa 51 } message_t;
embeddedartists 2:887c6b45e7fa 52
embeddedartists 2:887c6b45e7fa 53 MemoryPool<message_t, NumMessages> _mpool;
embeddedartists 2:887c6b45e7fa 54 Queue<message_t, NumMessages> _queue;
embeddedartists 2:887c6b45e7fa 55 Semaphore _sem;
embeddedartists 2:887c6b45e7fa 56 Serial _serial;
embeddedartists 2:887c6b45e7fa 57 Thread* _thr;
embeddedartists 2:887c6b45e7fa 58
embeddedartists 2:887c6b45e7fa 59 static void logTask(void const* args);
embeddedartists 2:887c6b45e7fa 60 };
embeddedartists 2:887c6b45e7fa 61
embeddedartists 2:887c6b45e7fa 62 #endif
embeddedartists 2:887c6b45e7fa 63
embeddedartists 2:887c6b45e7fa 64