Fahad Mirza / MODSERIAL

MODSERIAL with support for more devices

Fork of MODSERIAL by Erik -

MODSERIAL.cpp@46:6571cd7f896e, 2018-07-11 (annotated)

Committer:
fahadmirza
Date:
Wed Jul 11 08:17:03 2018 +0000
Revision:
46:6571cd7f896e
Parent:
42:4737f8a5b018 
Added support for NUCLEO_L053R8

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 25:ae0408ebdd68 34 MODSERIAL::MODSERIAL( PinName tx, PinName rx, const char* name ) : Serial( tx, rx, name )
AjK 0:eb2522b41db8 35 {
AjK 24:9c456e647a8f 36 init( MODSERIAL_DEFAULT_TX_BUFFER_SIZE, MODSERIAL_DEFAULT_RX_BUFFER_SIZE, rx );
AjK 0:eb2522b41db8 37 }
AjK 0:eb2522b41db8 38
AjK 25:ae0408ebdd68 39 MODSERIAL::MODSERIAL( PinName tx, PinName rx, int bufferSize, const char* name ) : Serial( tx, rx, name )
AjK 0:eb2522b41db8 40 {
AjK 24:9c456e647a8f 41 init( bufferSize, bufferSize, rx );
AjK 0:eb2522b41db8 42 }
AjK 0:eb2522b41db8 43
AjK 25:ae0408ebdd68 44 MODSERIAL::MODSERIAL( PinName tx, PinName rx, int txSize, int rxSize, const char* name ) : Serial( tx, rx, name )
AjK 0:eb2522b41db8 45 {
AjK 24:9c456e647a8f 46 init( txSize, rxSize, rx );
AjK 0:eb2522b41db8 47 }
AjK 0:eb2522b41db8 48
AjK 0:eb2522b41db8 49 MODSERIAL::~MODSERIAL()
AjK 0:eb2522b41db8 50 {
Sissors 27:9c93ce7cb9d8 51 NVIC_DisableIRQ(_IRQ);
AjK 23:5c45c21f36b7 52 if ( buffer[0] != NULL) free((char *)buffer[0] );
AjK 23:5c45c21f36b7 53 if ( buffer[1] != NULL) free((char *)buffer[1] );
AjK 0:eb2522b41db8 54 }
AjK 0:eb2522b41db8 55
Sissors 27:9c93ce7cb9d8 56 bool MODSERIAL::txBufferFull( void )
AjK 0:eb2522b41db8 57 {
AjK 0:eb2522b41db8 58 return MODSERIAL_TX_BUFFER_FULL;
AjK 0:eb2522b41db8 59 }
AjK 0:eb2522b41db8 60
Sissors 27:9c93ce7cb9d8 61 bool MODSERIAL::rxBufferFull( void )
AjK 0:eb2522b41db8 62 {
AjK 0:eb2522b41db8 63 return MODSERIAL_RX_BUFFER_FULL;
AjK 0:eb2522b41db8 64 }
AjK 0:eb2522b41db8 65
Sissors 27:9c93ce7cb9d8 66 bool MODSERIAL::txBufferEmpty( void )
AjK 0:eb2522b41db8 67 {
AjK 0:eb2522b41db8 68 return MODSERIAL_TX_BUFFER_EMPTY;
AjK 0:eb2522b41db8 69 }
AjK 0:eb2522b41db8 70
Sissors 27:9c93ce7cb9d8 71 bool MODSERIAL::rxBufferEmpty( void )
AjK 0:eb2522b41db8 72 {
AjK 0:eb2522b41db8 73 return MODSERIAL_RX_BUFFER_EMPTY;
AjK 0:eb2522b41db8 74 }
AjK 0:eb2522b41db8 75
AjK 2:b936b4acbd92 76
Sissors 27:9c93ce7cb9d8 77 int MODSERIAL::rxDiscardLastChar( void )
AjK 18:21ef26402365 78 {
AjK 18:21ef26402365 79 // This function can only be called indirectly from
AjK 18:21ef26402365 80 // an rxCallback function. Therefore, we know we
AjK 18:21ef26402365 81 // just placed a char into the buffer.
AjK 18:21ef26402365 82 char c = buffer[RxIrq][buffer_in[RxIrq]];
AjK 18:21ef26402365 83
AjK 18:21ef26402365 84 if (buffer_count[RxIrq]) {
AjK 18:21ef26402365 85 buffer_count[RxIrq]--;
AjK 18:21ef26402365 86 buffer_in[RxIrq]--;
AjK 18:21ef26402365 87 if (buffer_in[RxIrq] < 0) {
AjK 18:21ef26402365 88 buffer_in[RxIrq] = buffer_size[RxIrq] - 1;
AjK 18:21ef26402365 89 }
AjK 18:21ef26402365 90 }
AjK 18:21ef26402365 91
AjK 18:21ef26402365 92 return (int)c;
AjK 18:21ef26402365 93 }
AjK 18:21ef26402365 94
AjK 9:b3cdae80e7a9 95
Sissors 31:b90b20f78f04 96 bool MODSERIAL::claim (FILE *stream) {
Sissors 42:4737f8a5b018 97 if ( FileBase::getName() == NULL) {
Sissors 31:b90b20f78f04 98 error("claim requires a name to be given in the instantiator of the MODSERIAL instance!\r\n");
Sissors 31:b90b20f78f04 99 }
Sissors 31:b90b20f78f04 100
Sissors 31:b90b20f78f04 101 //Add '/' before name:
Sissors 42:4737f8a5b018 102 char *path = new char[strlen(FileBase::getName()) + 2];
Sissors 42:4737f8a5b018 103 sprintf(path, "/%s", FileBase::getName());
Sissors 31:b90b20f78f04 104
Sissors 31:b90b20f78f04 105 if (freopen(path, "w", stream) == NULL) {
Sissors 31:b90b20f78f04 106 // Failed, should not happen
Sissors 31:b90b20f78f04 107 return false;
Sissors 31:b90b20f78f04 108 }
Sissors 31:b90b20f78f04 109
Sissors 31:b90b20f78f04 110 delete(path);
Sissors 31:b90b20f78f04 111
Sissors 31:b90b20f78f04 112 //No buffering
Sissors 31:b90b20f78f04 113 setvbuf(stdout, NULL, _IONBF, buffer_size[TxIrq]);
Sissors 31:b90b20f78f04 114 return true;
Sissors 31:b90b20f78f04 115 }
Sissors 31:b90b20f78f04 116
Sissors 31:b90b20f78f04 117
Sissors 31:b90b20f78f04 118
AjK 0:eb2522b41db8 119 }; // namespace AjK ends