Integrating the ublox LISA C200 modem
Fork of SprintUSBModemHTTPClientTest by
Diff: mbed-src/common/Serial.cpp
- Revision:
- 5:3f93dd1d4cb3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-src/common/Serial.cpp Thu Sep 26 00:44:20 2013 -0500 @@ -0,0 +1,104 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "Serial.h" +#include "wait_api.h" + +#if DEVICE_SERIAL + +namespace mbed { + +Serial::Serial(PinName tx, PinName rx, const char *name) : Stream(name) { + serial_init(&_serial, tx, rx); + _baud = 9600; + serial_irq_handler(&_serial, Serial::_irq_handler, (uint32_t)this); +} + +void Serial::baud(int baudrate) { + serial_baud(&_serial, baudrate); + _baud = baudrate; +} + +void Serial::format(int bits, Parity parity, int stop_bits) { + serial_format(&_serial, bits, (SerialParity)parity, stop_bits); +} + +int Serial::readable() { + return serial_readable(&_serial); +} + + +int Serial::writeable() { + return serial_writable(&_serial); +} + +pFunctionPointer_t Serial::attach(void (*fptr)(void), IrqType type) { + pFunctionPointer_t pf = NULL; + _irq[type].clear(); + if (fptr) { + pf = _irq[type].add(fptr); + serial_irq_set(&_serial, (SerialIrq)type, 1); + } else { + serial_irq_set(&_serial, (SerialIrq)type, 0); + } + return pf; +} + +pFunctionPointer_t Serial::add_handler_helper(void (*fptr)(void), IrqType type, bool front) { + if (NULL == fptr) + return NULL; + pFunctionPointer_t pf = front ? _irq[type].add_front(fptr) : _irq[type].add(fptr); + serial_irq_set(&_serial, (SerialIrq)type, 1); + return pf; +} + +bool Serial::remove_handler(pFunctionPointer_t pf, IrqType type) { + bool res = _irq[type].remove(pf); + if (res && _irq[type].size() == 0) + serial_irq_set(&_serial, (SerialIrq)type, 0); + return res; +} + +void Serial::_irq_handler(uint32_t id, SerialIrq irq_type) { + Serial *handler = (Serial*)id; + handler->_irq[irq_type].call(); +} + +int Serial::_getc() { + return serial_getc(&_serial); +} + +int Serial::_putc(int c) { + serial_putc(&_serial, c); + return c; +} + +void Serial::send_break() { + // Wait for 1.5 frames before clearing the break condition + // This will have different effects on our platforms, but should + // ensure that we keep the break active for at least one frame. + // We consider a full frame (1 start bit + 8 data bits bits + + // 1 parity bit + 2 stop bits = 12 bits) for computation. + // One bit time (in us) = 1000000/_baud + // Twelve bits: 12000000/baud delay + // 1.5 frames: 18000000/baud delay + serial_break_set(&_serial); + wait_us(18000000/_baud); + serial_break_clear(&_serial); +} + +} // namespace mbed + +#endif