Aukie Hooglugt / MODSERIAL-

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Fork of MODSERIAL by Erik -

MODSERIAL.cpp@18:21ef26402365, 2011-04-21 (annotated)

Committer:
AjK
Date:
Thu Apr 21 09:20:41 2011 +0000
Revision:
18:21ef26402365
Parent:
9:b3cdae80e7a9
Child:
23:5c45c21f36b7
1.18 See ChangeLog.c

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AjK 0:eb2522b41db8 1 /*
AjK 0:eb2522b41db8 2 Copyright (c) 2010 Andy Kirkham
AjK 0:eb2522b41db8 3
AjK 0:eb2522b41db8 4 Permission is hereby granted, free of charge, to any person obtaining a copy
AjK 0:eb2522b41db8 5 of this software and associated documentation files (the "Software"), to deal
AjK 0:eb2522b41db8 6 in the Software without restriction, including without limitation the rights
AjK 0:eb2522b41db8 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
AjK 0:eb2522b41db8 8 copies of the Software, and to permit persons to whom the Software is
AjK 0:eb2522b41db8 9 furnished to do so, subject to the following conditions:
AjK 0:eb2522b41db8 10
AjK 0:eb2522b41db8 11 The above copyright notice and this permission notice shall be included in
AjK 0:eb2522b41db8 12 all copies or substantial portions of the Software.
AjK 0:eb2522b41db8 13
AjK 0:eb2522b41db8 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
AjK 0:eb2522b41db8 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
AjK 0:eb2522b41db8 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AjK 0:eb2522b41db8 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
AjK 0:eb2522b41db8 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AjK 0:eb2522b41db8 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
AjK 0:eb2522b41db8 20 THE SOFTWARE.
AjK 7:ffa4a7cb7f8d 21
AjK 7:ffa4a7cb7f8d 22 @file MODSERIAL.h
AjK 7:ffa4a7cb7f8d 23 @purpose Extends Serial to provide fully buffered IO
AjK 7:ffa4a7cb7f8d 24 @version 1.6
AjK 7:ffa4a7cb7f8d 25 @date Nov 2010
AjK 7:ffa4a7cb7f8d 26 @author Andy Kirkham
AjK 0:eb2522b41db8 27 */
AjK 0:eb2522b41db8 28
AjK 0:eb2522b41db8 29 #include "MODSERIAL.h"
AjK 0:eb2522b41db8 30 #include "MACROS.h"
AjK 0:eb2522b41db8 31
AjK 0:eb2522b41db8 32 namespace AjK {
AjK 0:eb2522b41db8 33
AjK 0:eb2522b41db8 34 MODSERIAL::MODSERIAL(PinName tx, PinName rx, const char *name) : Serial(tx, rx, name)
AjK 0:eb2522b41db8 35 {
AjK 0:eb2522b41db8 36 init(MODSERIAL_DEFAULT_TX_BUFFER_SIZE, MODSERIAL_DEFAULT_RX_BUFFER_SIZE);
AjK 0:eb2522b41db8 37 }
AjK 0:eb2522b41db8 38
AjK 0:eb2522b41db8 39 MODSERIAL::MODSERIAL(PinName tx, PinName rx, int bufferSize, const char *name) : Serial(tx, rx, name)
AjK 0:eb2522b41db8 40 {
AjK 0:eb2522b41db8 41 init(bufferSize, bufferSize);
AjK 0:eb2522b41db8 42 }
AjK 0:eb2522b41db8 43
AjK 0:eb2522b41db8 44 MODSERIAL::MODSERIAL(PinName tx, PinName rx, int txSize, int rxSize, const char *name) : Serial(tx, rx, name)
AjK 0:eb2522b41db8 45 {
AjK 0:eb2522b41db8 46 init(txSize, rxSize);
AjK 0:eb2522b41db8 47 }
AjK 0:eb2522b41db8 48
AjK 0:eb2522b41db8 49 MODSERIAL::~MODSERIAL()
AjK 0:eb2522b41db8 50 {
AjK 0:eb2522b41db8 51 disableIrq();
AjK 0:eb2522b41db8 52 if (buffer[0] != NULL) free((char *)buffer[0]);
AjK 4:28de979b77cf 53 if (buffer[1] != NULL) free((char *)buffer[1]);
AjK 0:eb2522b41db8 54 }
AjK 0:eb2522b41db8 55
AjK 0:eb2522b41db8 56 bool
AjK 0:eb2522b41db8 57 MODSERIAL::txBufferFull(void)
AjK 0:eb2522b41db8 58 {
AjK 0:eb2522b41db8 59 return MODSERIAL_TX_BUFFER_FULL;
AjK 0:eb2522b41db8 60 }
AjK 0:eb2522b41db8 61
AjK 0:eb2522b41db8 62 bool
AjK 0:eb2522b41db8 63 MODSERIAL::rxBufferFull(void)
AjK 0:eb2522b41db8 64 {
AjK 0:eb2522b41db8 65 return MODSERIAL_RX_BUFFER_FULL;
AjK 0:eb2522b41db8 66 }
AjK 0:eb2522b41db8 67
AjK 0:eb2522b41db8 68 bool
AjK 0:eb2522b41db8 69 MODSERIAL::txBufferEmpty(void)
AjK 0:eb2522b41db8 70 {
AjK 0:eb2522b41db8 71 return MODSERIAL_TX_BUFFER_EMPTY;
AjK 0:eb2522b41db8 72 }
AjK 0:eb2522b41db8 73
AjK 0:eb2522b41db8 74 bool
AjK 0:eb2522b41db8 75 MODSERIAL::rxBufferEmpty(void)
AjK 0:eb2522b41db8 76 {
AjK 0:eb2522b41db8 77 return MODSERIAL_RX_BUFFER_EMPTY;
AjK 0:eb2522b41db8 78 }
AjK 0:eb2522b41db8 79
AjK 2:b936b4acbd92 80 bool
AjK 2:b936b4acbd92 81 MODSERIAL::txIsBusy(void)
AjK 2:b936b4acbd92 82 {
AjK 2:b936b4acbd92 83 return (_LSR & (3UL << 5) == 0) ? true : false;
AjK 2:b936b4acbd92 84 }
AjK 2:b936b4acbd92 85
AjK 0:eb2522b41db8 86 void
AjK 0:eb2522b41db8 87 MODSERIAL::disableIrq(void)
AjK 0:eb2522b41db8 88 {
AjK 0:eb2522b41db8 89 switch(_uidx) {
AjK 0:eb2522b41db8 90 case 0: NVIC_DisableIRQ(UART0_IRQn); break;
AjK 0:eb2522b41db8 91 case 1: NVIC_DisableIRQ(UART1_IRQn); break;
AjK 0:eb2522b41db8 92 case 2: NVIC_DisableIRQ(UART2_IRQn); break;
AjK 0:eb2522b41db8 93 case 3: NVIC_DisableIRQ(UART3_IRQn); break;
AjK 0:eb2522b41db8 94 }
AjK 0:eb2522b41db8 95 }
AjK 0:eb2522b41db8 96
AjK 0:eb2522b41db8 97 void
AjK 0:eb2522b41db8 98 MODSERIAL::enableIrq(void)
AjK 0:eb2522b41db8 99 {
AjK 0:eb2522b41db8 100 switch(_uidx) {
AjK 0:eb2522b41db8 101 case 0: NVIC_EnableIRQ(UART0_IRQn); break;
AjK 0:eb2522b41db8 102 case 1: NVIC_EnableIRQ(UART1_IRQn); break;
AjK 0:eb2522b41db8 103 case 2: NVIC_EnableIRQ(UART2_IRQn); break;
AjK 0:eb2522b41db8 104 case 3: NVIC_EnableIRQ(UART3_IRQn); break;
AjK 0:eb2522b41db8 105 }
AjK 0:eb2522b41db8 106 }
AjK 0:eb2522b41db8 107
AjK 18:21ef26402365 108 int
AjK 18:21ef26402365 109 MODSERIAL::rxDiscardLastChar(void)
AjK 18:21ef26402365 110 {
AjK 18:21ef26402365 111 // This function can only be called indirectly from
AjK 18:21ef26402365 112 // an rxCallback function. Therefore, we know we
AjK 18:21ef26402365 113 // just placed a char into the buffer.
AjK 18:21ef26402365 114 char c = buffer[RxIrq][buffer_in[RxIrq]];
AjK 18:21ef26402365 115
AjK 18:21ef26402365 116 if (buffer_count[RxIrq]) {
AjK 18:21ef26402365 117 buffer_count[RxIrq]--;
AjK 18:21ef26402365 118 buffer_in[RxIrq]--;
AjK 18:21ef26402365 119 if (buffer_in[RxIrq] < 0) {
AjK 18:21ef26402365 120 buffer_in[RxIrq] = buffer_size[RxIrq] - 1;
AjK 18:21ef26402365 121 }
AjK 18:21ef26402365 122 }
AjK 18:21ef26402365 123
AjK 18:21ef26402365 124 return (int)c;
AjK 18:21ef26402365 125 }
AjK 18:21ef26402365 126
AjK 9:b3cdae80e7a9 127
AjK 0:eb2522b41db8 128 }; // namespace AjK ends