Arthur Ganger / Mbed 2 deprecated Talking_Braille_SMS

A talking braille-input text message device!!

Dependencies:   Braille_In PinDetect mbed

MODSERIAL/MODSERIAL.cpp@1:4e1b66d0799f, 2012-10-12 (annotated)

Committer:
aganger3
Date:
Fri Oct 12 18:05:42 2012 +0000
Revision:
1:4e1b66d0799f
Parent:
0:c79379695e18 
Changed title in comment;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
aganger3 0:c79379695e18 1 /*
aganger3 0:c79379695e18 2 Copyright (c) 2010 Andy Kirkham
aganger3 0:c79379695e18 3
aganger3 0:c79379695e18 4 Permission is hereby granted, free of charge, to any person obtaining a copy
aganger3 0:c79379695e18 5 of this software and associated documentation files (the "Software"), to deal
aganger3 0:c79379695e18 6 in the Software without restriction, including without limitation the rights
aganger3 0:c79379695e18 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
aganger3 0:c79379695e18 8 copies of the Software, and to permit persons to whom the Software is
aganger3 0:c79379695e18 9 furnished to do so, subject to the following conditions:
aganger3 0:c79379695e18 10
aganger3 0:c79379695e18 11 The above copyright notice and this permission notice shall be included in
aganger3 0:c79379695e18 12 all copies or substantial portions of the Software.
aganger3 0:c79379695e18 13
aganger3 0:c79379695e18 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
aganger3 0:c79379695e18 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
aganger3 0:c79379695e18 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
aganger3 0:c79379695e18 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
aganger3 0:c79379695e18 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
aganger3 0:c79379695e18 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
aganger3 0:c79379695e18 20 THE SOFTWARE.
aganger3 0:c79379695e18 21
aganger3 0:c79379695e18 22 @file MODSERIAL.h
aganger3 0:c79379695e18 23 @purpose Extends Serial to provide fully buffered IO
aganger3 0:c79379695e18 24 @version 1.6
aganger3 0:c79379695e18 25 @date Nov 2010
aganger3 0:c79379695e18 26 @author Andy Kirkham
aganger3 0:c79379695e18 27 */
aganger3 0:c79379695e18 28
aganger3 0:c79379695e18 29 #include "MODSERIAL.h"
aganger3 0:c79379695e18 30 #include "MACROS.h"
aganger3 0:c79379695e18 31
aganger3 0:c79379695e18 32 namespace AjK {
aganger3 0:c79379695e18 33
aganger3 0:c79379695e18 34 MODSERIAL::MODSERIAL(PinName tx, PinName rx, const char *name) : Serial(tx, rx, name)
aganger3 0:c79379695e18 35 {
aganger3 0:c79379695e18 36 init(MODSERIAL_DEFAULT_TX_BUFFER_SIZE, MODSERIAL_DEFAULT_RX_BUFFER_SIZE);
aganger3 0:c79379695e18 37 }
aganger3 0:c79379695e18 38
aganger3 0:c79379695e18 39 MODSERIAL::MODSERIAL(PinName tx, PinName rx, int bufferSize, const char *name) : Serial(tx, rx, name)
aganger3 0:c79379695e18 40 {
aganger3 0:c79379695e18 41 init(bufferSize, bufferSize);
aganger3 0:c79379695e18 42 }
aganger3 0:c79379695e18 43
aganger3 0:c79379695e18 44 MODSERIAL::MODSERIAL(PinName tx, PinName rx, int txSize, int rxSize, const char *name) : Serial(tx, rx, name)
aganger3 0:c79379695e18 45 {
aganger3 0:c79379695e18 46 init(txSize, rxSize);
aganger3 0:c79379695e18 47 }
aganger3 0:c79379695e18 48
aganger3 0:c79379695e18 49 MODSERIAL::~MODSERIAL()
aganger3 0:c79379695e18 50 {
aganger3 0:c79379695e18 51 disableIrq();
aganger3 0:c79379695e18 52 if (buffer[0] != NULL) free((char *)buffer[0]);
aganger3 0:c79379695e18 53 if (buffer[1] != NULL) free((char *)buffer[1]);
aganger3 0:c79379695e18 54 }
aganger3 0:c79379695e18 55
aganger3 0:c79379695e18 56 bool
aganger3 0:c79379695e18 57 MODSERIAL::txBufferFull(void)
aganger3 0:c79379695e18 58 {
aganger3 0:c79379695e18 59 return MODSERIAL_TX_BUFFER_FULL;
aganger3 0:c79379695e18 60 }
aganger3 0:c79379695e18 61
aganger3 0:c79379695e18 62 bool
aganger3 0:c79379695e18 63 MODSERIAL::rxBufferFull(void)
aganger3 0:c79379695e18 64 {
aganger3 0:c79379695e18 65 return MODSERIAL_RX_BUFFER_FULL;
aganger3 0:c79379695e18 66 }
aganger3 0:c79379695e18 67
aganger3 0:c79379695e18 68 bool
aganger3 0:c79379695e18 69 MODSERIAL::txBufferEmpty(void)
aganger3 0:c79379695e18 70 {
aganger3 0:c79379695e18 71 return MODSERIAL_TX_BUFFER_EMPTY;
aganger3 0:c79379695e18 72 }
aganger3 0:c79379695e18 73
aganger3 0:c79379695e18 74 bool
aganger3 0:c79379695e18 75 MODSERIAL::rxBufferEmpty(void)
aganger3 0:c79379695e18 76 {
aganger3 0:c79379695e18 77 return MODSERIAL_RX_BUFFER_EMPTY;
aganger3 0:c79379695e18 78 }
aganger3 0:c79379695e18 79
aganger3 0:c79379695e18 80 bool
aganger3 0:c79379695e18 81 MODSERIAL::txIsBusy(void)
aganger3 0:c79379695e18 82 {
aganger3 0:c79379695e18 83 return (_LSR & (3UL << 5) == 0) ? true : false;
aganger3 0:c79379695e18 84 }
aganger3 0:c79379695e18 85
aganger3 0:c79379695e18 86 void
aganger3 0:c79379695e18 87 MODSERIAL::disableIrq(void)
aganger3 0:c79379695e18 88 {
aganger3 0:c79379695e18 89 switch(_uidx) {
aganger3 0:c79379695e18 90 case 0: NVIC_DisableIRQ(UART0_IRQn); break;
aganger3 0:c79379695e18 91 case 1: NVIC_DisableIRQ(UART1_IRQn); break;
aganger3 0:c79379695e18 92 case 2: NVIC_DisableIRQ(UART2_IRQn); break;
aganger3 0:c79379695e18 93 case 3: NVIC_DisableIRQ(UART3_IRQn); break;
aganger3 0:c79379695e18 94 }
aganger3 0:c79379695e18 95 }
aganger3 0:c79379695e18 96
aganger3 0:c79379695e18 97 void
aganger3 0:c79379695e18 98 MODSERIAL::enableIrq(void)
aganger3 0:c79379695e18 99 {
aganger3 0:c79379695e18 100 switch(_uidx) {
aganger3 0:c79379695e18 101 case 0: NVIC_EnableIRQ(UART0_IRQn); break;
aganger3 0:c79379695e18 102 case 1: NVIC_EnableIRQ(UART1_IRQn); break;
aganger3 0:c79379695e18 103 case 2: NVIC_EnableIRQ(UART2_IRQn); break;
aganger3 0:c79379695e18 104 case 3: NVIC_EnableIRQ(UART3_IRQn); break;
aganger3 0:c79379695e18 105 }
aganger3 0:c79379695e18 106 }
aganger3 0:c79379695e18 107
aganger3 0:c79379695e18 108 int
aganger3 0:c79379695e18 109 MODSERIAL::rxDiscardLastChar(void)
aganger3 0:c79379695e18 110 {
aganger3 0:c79379695e18 111 // This function can only be called indirectly from
aganger3 0:c79379695e18 112 // an rxCallback function. Therefore, we know we
aganger3 0:c79379695e18 113 // just placed a char into the buffer.
aganger3 0:c79379695e18 114 char c = buffer[RxIrq][buffer_in[RxIrq]];
aganger3 0:c79379695e18 115
aganger3 0:c79379695e18 116 if (buffer_count[RxIrq]) {
aganger3 0:c79379695e18 117 buffer_count[RxIrq]--;
aganger3 0:c79379695e18 118 buffer_in[RxIrq]--;
aganger3 0:c79379695e18 119 if (buffer_in[RxIrq] < 0) {
aganger3 0:c79379695e18 120 buffer_in[RxIrq] = buffer_size[RxIrq] - 1;
aganger3 0:c79379695e18 121 }
aganger3 0:c79379695e18 122 }
aganger3 0:c79379695e18 123
aganger3 0:c79379695e18 124 return (int)c;
aganger3 0:c79379695e18 125 }
aganger3 0:c79379695e18 126
aganger3 0:c79379695e18 127
aganger3 0:c79379695e18 128 }; // namespace AjK ends