Devin Alexander / USBDeviceHT

I changed one line of code in the file with path name: USBDeviceHT/targets/TARGET_Maxim

Fork of USBDeviceHT by Helmut Tschemernjak

USBSerial/CircBuffer.h@6:c1f162fd7777, 2018-06-01 (annotated)

Committer:
dev_alexander
Date:
Fri Jun 01 21:43:55 2018 +0000
Revision:
6:c1f162fd7777
Parent:
0:a3ea811f80f2 
Fixed Error with code not compiling due to an issue with there not being a (uint32_t) cast of a (void) pointer. Maxim was the only mbed vendor to not have this one (uint32_t) cast in the spot it was added to. Look into public repos for similar cases.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Helmut64 0:a3ea811f80f2 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
Helmut64 0:a3ea811f80f2 2 *
Helmut64 0:a3ea811f80f2 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
Helmut64 0:a3ea811f80f2 4 * and associated documentation files (the "Software"), to deal in the Software without
Helmut64 0:a3ea811f80f2 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
Helmut64 0:a3ea811f80f2 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
Helmut64 0:a3ea811f80f2 7 * Software is furnished to do so, subject to the following conditions:
Helmut64 0:a3ea811f80f2 8 *
Helmut64 0:a3ea811f80f2 9 * The above copyright notice and this permission notice shall be included in all copies or
Helmut64 0:a3ea811f80f2 10 * substantial portions of the Software.
Helmut64 0:a3ea811f80f2 11 *
Helmut64 0:a3ea811f80f2 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
Helmut64 0:a3ea811f80f2 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Helmut64 0:a3ea811f80f2 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
Helmut64 0:a3ea811f80f2 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Helmut64 0:a3ea811f80f2 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Helmut64 0:a3ea811f80f2 17 */
Helmut64 0:a3ea811f80f2 18
Helmut64 0:a3ea811f80f2 19 #ifndef CIRCBUFFER_H
Helmut64 0:a3ea811f80f2 20 #define CIRCBUFFER_H
Helmut64 0:a3ea811f80f2 21
Helmut64 0:a3ea811f80f2 22 template <class T, int Size>
Helmut64 0:a3ea811f80f2 23 class CircBuffer {
Helmut64 0:a3ea811f80f2 24 public:
Helmut64 0:a3ea811f80f2 25 CircBuffer():write(0), read(0){}
Helmut64 0:a3ea811f80f2 26 bool isFull() {
Helmut64 0:a3ea811f80f2 27 return ((write + 1) % size == read);
Helmut64 0:a3ea811f80f2 28 };
Helmut64 0:a3ea811f80f2 29
Helmut64 0:a3ea811f80f2 30 bool isEmpty() {
Helmut64 0:a3ea811f80f2 31 return (read == write);
Helmut64 0:a3ea811f80f2 32 };
Helmut64 0:a3ea811f80f2 33
Helmut64 0:a3ea811f80f2 34 void queue(T k) {
Helmut64 0:a3ea811f80f2 35 if (isFull()) {
Helmut64 0:a3ea811f80f2 36 read++;
Helmut64 0:a3ea811f80f2 37 read %= size;
Helmut64 0:a3ea811f80f2 38 }
Helmut64 0:a3ea811f80f2 39 buf[write++] = k;
Helmut64 0:a3ea811f80f2 40 write %= size;
Helmut64 0:a3ea811f80f2 41 }
Helmut64 0:a3ea811f80f2 42
Helmut64 0:a3ea811f80f2 43 uint16_t available() {
Helmut64 0:a3ea811f80f2 44 return (write >= read) ? write - read : size - read + write;
Helmut64 0:a3ea811f80f2 45 };
Helmut64 0:a3ea811f80f2 46
Helmut64 0:a3ea811f80f2 47 bool dequeue(T * c) {
Helmut64 0:a3ea811f80f2 48 bool empty = isEmpty();
Helmut64 0:a3ea811f80f2 49 if (!empty) {
Helmut64 0:a3ea811f80f2 50 *c = buf[read++];
Helmut64 0:a3ea811f80f2 51 read %= size;
Helmut64 0:a3ea811f80f2 52 }
Helmut64 0:a3ea811f80f2 53 return(!empty);
Helmut64 0:a3ea811f80f2 54 };
Helmut64 0:a3ea811f80f2 55
Helmut64 0:a3ea811f80f2 56 private:
Helmut64 0:a3ea811f80f2 57 volatile uint16_t write;
Helmut64 0:a3ea811f80f2 58 volatile uint16_t read;
Helmut64 0:a3ea811f80f2 59 static const int size = Size+1; //a modern optimizer should be able to remove this so it uses no ram.
Helmut64 0:a3ea811f80f2 60 T buf[Size+1];
Helmut64 0:a3ea811f80f2 61 };
Helmut64 0:a3ea811f80f2 62
Helmut64 0:a3ea811f80f2 63 #endif