Kai Liu / Mbed 2 deprecated CC1101_Transceiver

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Dependencies:   mbed

Fork of CC1101_Transceiver_LPC1114 by Kai Liu

RingBuffer.cpp@2:0e79d58be0f6, 2017-08-24 (annotated)

Committer:
allankliu
Date:
Thu Aug 24 10:37:31 2017 +0000
Revision:
2:0e79d58be0f6
Parent:
0:9df942ea84f4 
Init version, integrated CC1101_Transceiver with STM32F103RB/LPC824, publish to public for further debugging. Current SPI access 0x30 to 0x3D registers are not stable.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tmav123 0:9df942ea84f4 1 /*
tmav123 0:9df942ea84f4 2 * mbed library for RingBuffer
tmav123 0:9df942ea84f4 3 * Copyright (c) 2010 Hiroshi Suga
tmav123 0:9df942ea84f4 4 * Released under the MIT License: http://mbed.org/license/mit
tmav123 0:9df942ea84f4 5 */
tmav123 0:9df942ea84f4 6
tmav123 0:9df942ea84f4 7 #include "RingBuffer.h"
tmav123 0:9df942ea84f4 8
tmav123 0:9df942ea84f4 9 RingBuffer::RingBuffer (int p_size) {
tmav123 0:9df942ea84f4 10 size = p_size + 1;
tmav123 0:9df942ea84f4 11 buf = new char[size];
tmav123 0:9df942ea84f4 12 addr_w = 0;
tmav123 0:9df942ea84f4 13 addr_r = 0;
tmav123 0:9df942ea84f4 14 }
tmav123 0:9df942ea84f4 15 /*
tmav123 0:9df942ea84f4 16 RingBuffer::~RingBuffer () {
tmav123 0:9df942ea84f4 17 delete [] buf;
tmav123 0:9df942ea84f4 18 }
tmav123 0:9df942ea84f4 19 */
tmav123 0:9df942ea84f4 20 int RingBuffer::_putc (int dat) {
tmav123 0:9df942ea84f4 21 int next;
tmav123 0:9df942ea84f4 22
tmav123 0:9df942ea84f4 23 next = (addr_w + 1) % size;
tmav123 0:9df942ea84f4 24 if (next == addr_r) {
tmav123 0:9df942ea84f4 25 return -1;
tmav123 0:9df942ea84f4 26 }
tmav123 0:9df942ea84f4 27 buf[addr_w] = dat;
tmav123 0:9df942ea84f4 28 addr_w = next;
tmav123 0:9df942ea84f4 29 return dat;
tmav123 0:9df942ea84f4 30 }
tmav123 0:9df942ea84f4 31
tmav123 0:9df942ea84f4 32 int RingBuffer::put (char *dat, int len) {
tmav123 0:9df942ea84f4 33 int next, i;
tmav123 0:9df942ea84f4 34
tmav123 0:9df942ea84f4 35
tmav123 0:9df942ea84f4 36 for (i = 0; i < len; i ++) {
tmav123 0:9df942ea84f4 37 next = (addr_w + 1) % size;
tmav123 0:9df942ea84f4 38 if (next == addr_r) {
tmav123 0:9df942ea84f4 39 break;
tmav123 0:9df942ea84f4 40 }
tmav123 0:9df942ea84f4 41 buf[addr_w] = dat[i];
tmav123 0:9df942ea84f4 42 addr_w = next;
tmav123 0:9df942ea84f4 43 }
tmav123 0:9df942ea84f4 44 return i;
tmav123 0:9df942ea84f4 45 }
tmav123 0:9df942ea84f4 46
tmav123 0:9df942ea84f4 47 int RingBuffer::_getc (void)
tmav123 0:9df942ea84f4 48 {
tmav123 0:9df942ea84f4 49 char dat;
tmav123 0:9df942ea84f4 50 if (addr_r == addr_w) {
tmav123 0:9df942ea84f4 51 return 0;
tmav123 0:9df942ea84f4 52 }
tmav123 0:9df942ea84f4 53 dat = buf[addr_r];
tmav123 0:9df942ea84f4 54 addr_r = (addr_r + 1) % size;
tmav123 0:9df942ea84f4 55 return dat;
tmav123 0:9df942ea84f4 56 }
tmav123 0:9df942ea84f4 57
tmav123 0:9df942ea84f4 58 int RingBuffer::get (char *dat, int len) {
tmav123 0:9df942ea84f4 59 int i;
tmav123 0:9df942ea84f4 60
tmav123 0:9df942ea84f4 61 for (i = 0; i < len; i ++) {
tmav123 0:9df942ea84f4 62 if (addr_r == addr_w) {
tmav123 0:9df942ea84f4 63 break;
tmav123 0:9df942ea84f4 64 }
tmav123 0:9df942ea84f4 65 dat[i] = buf[addr_r];
tmav123 0:9df942ea84f4 66 addr_r = (addr_r + 1) % size;
tmav123 0:9df942ea84f4 67 }
tmav123 0:9df942ea84f4 68 return i;
tmav123 0:9df942ea84f4 69 }
tmav123 0:9df942ea84f4 70
tmav123 0:9df942ea84f4 71 int RingBuffer::available () {
tmav123 0:9df942ea84f4 72 if (addr_w < addr_r) {
tmav123 0:9df942ea84f4 73 return addr_r - addr_w - 1;
tmav123 0:9df942ea84f4 74 } else {
tmav123 0:9df942ea84f4 75 return (size - addr_w) + addr_r - 1;
tmav123 0:9df942ea84f4 76 }
tmav123 0:9df942ea84f4 77 }
tmav123 0:9df942ea84f4 78
tmav123 0:9df942ea84f4 79 int RingBuffer::use () {
tmav123 0:9df942ea84f4 80 return size - available() - 1;
tmav123 0:9df942ea84f4 81 }
tmav123 0:9df942ea84f4 82
tmav123 0:9df942ea84f4 83 void RingBuffer::clear () {
tmav123 0:9df942ea84f4 84 addr_w = 0;
tmav123 0:9df942ea84f4 85 addr_r = 0;
tmav123 0:9df942ea84f4 86 }