Mike Digman / MODSERIAL

Fork of MODSERIAL that works with LPC4088

Fork of MODSERIAL by Andy K

ISR_TX.cpp@8:775f860e94d3, 2010-11-22 (annotated)

Committer:
AjK
Date:
Mon Nov 22 09:58:34 2010 +0000
Revision:
8:775f860e94d3
Parent:
6:c8f77fe1cc10
Child:
12:8c7394e2ae7f
1.8

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 0:eb2522b41db8 21 */
AjK 0:eb2522b41db8 22
AjK 0:eb2522b41db8 23 #include "MODSERIAL.h"
AjK 0:eb2522b41db8 24 #include "MACROS.h"
AjK 0:eb2522b41db8 25
AjK 0:eb2522b41db8 26 namespace AjK {
AjK 0:eb2522b41db8 27
AjK 0:eb2522b41db8 28 void
AjK 6:c8f77fe1cc10 29 MODSERIAL::isr_tx(bool doCallback)
AjK 0:eb2522b41db8 30 {
AjK 8:775f860e94d3 31 if (! _base || buffer_size[TxIrq] == 0 || buffer[TxIrq] == (char *)NULL) {
AjK 8:775f860e94d3 32 _isr[TxIrq].call();
AjK 8:775f860e94d3 33 return;
AjK 8:775f860e94d3 34 }
AjK 2:b936b4acbd92 35
AjK 4:28de979b77cf 36 while (! MODSERIAL_TX_BUFFER_EMPTY && MODSERIAL_THR_HAS_SPACE ) {
AjK 4:28de979b77cf 37 _THR = txc = (uint8_t)(buffer[TxIrq][buffer_out[TxIrq]]);
AjK 4:28de979b77cf 38 buffer_count[TxIrq]--;
AjK 4:28de979b77cf 39 buffer_out[TxIrq]++;
AjK 4:28de979b77cf 40 if (buffer_out[TxIrq] >= buffer_size[TxIrq]) {
AjK 4:28de979b77cf 41 buffer_out[TxIrq] = 0;
AjK 0:eb2522b41db8 42 }
AjK 6:c8f77fe1cc10 43 if (doCallback) _isr[TxIrq].call();
AjK 4:28de979b77cf 44 }
AjK 0:eb2522b41db8 45
AjK 4:28de979b77cf 46 if ( MODSERIAL_TX_BUFFER_EMPTY && MODSERIAL_THR_HAS_SPACE ) {
AjK 4:28de979b77cf 47 _IER = 1;
AjK 4:28de979b77cf 48 _isr[TxEmpty].call();
AjK 4:28de979b77cf 49 }
AjK 0:eb2522b41db8 50 }
AjK 0:eb2522b41db8 51
AjK 0:eb2522b41db8 52 }; // namespace AjK ends
AjK 0:eb2522b41db8 53
AjK 0:eb2522b41db8 54