Serial.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #include "Serial.h"
00017 
00018 #if DEVICE_SERIAL
00019 
00020 namespace mbed {
00021 
00022 Serial::Serial(PinName tx, PinName rx, const char *name) : Stream(name) {
00023     serial_init(&_serial, tx, rx);
00024     serial_irq_handler(&_serial, Serial::_irq_handler, (uint32_t)this);
00025 }
00026 
00027 void Serial::baud(int baudrate) {
00028     serial_baud(&_serial, baudrate);
00029 }
00030 
00031 void Serial::format(int bits, Parity parity, int stop_bits) {
00032     serial_format(&_serial, bits, (SerialParity)parity, stop_bits);
00033 }
00034 
00035 int Serial::readable() {
00036     return serial_readable(&_serial);
00037 }
00038 
00039 
00040 int Serial::writeable() {
00041     return serial_writable(&_serial);
00042 }
00043 
00044 void Serial::attach(void (*fptr)(void), IrqType type) {
00045     if (fptr) {
00046         _irq[type].attach(fptr);
00047         serial_irq_set(&_serial, (SerialIrq)type, 1);
00048     } else {
00049         serial_irq_set(&_serial, (SerialIrq)type, 0);
00050     }
00051 }
00052 
00053 
00054 void Serial::_irq_handler(uint32_t id, SerialIrq irq_type) {
00055     Serial *handler = (Serial*)id;
00056     handler->_irq[irq_type].call();
00057 }
00058 
00059 int Serial::_getc() {
00060     return serial_getc(&_serial);
00061 }
00062 
00063 int Serial::_putc(int c) {
00064     serial_putc(&_serial, c);
00065     return c;
00066 }
00067 
00068 } // namespace mbed
00069 
00070 #endif