USBSerial.cpp

00001 #include "mbed.h"
00002 #include "PinMap.h"
00003 
00004 #ifdef FEATURE_USBSERIAL
00005 
00006 /* Copyright (c) 2010-2011 mbed.org, MIT License
00007 *
00008 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00009 * and associated documentation files (the "Software"), to deal in the Software without
00010 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
00011 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
00012 * Software is furnished to do so, subject to the following conditions:
00013 *
00014 * The above copyright notice and this permission notice shall be included in all copies or
00015 * substantial portions of the Software.
00016 *
00017 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00018 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00019 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00020 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00021 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00022 */
00023 
00024 #include "stdint.h"
00025 #include "USBSerial.h"
00026 
00027 int USBSerial::_putc(int c) {
00028     if (!terminal_connected)
00029         return 0;
00030     send((uint8_t *)&c, 1);
00031     return 1;
00032 }
00033 
00034 int USBSerial::_getc() {
00035     uint8_t c = 0;
00036     while (buf.isEmpty());
00037     buf.dequeue(&c);
00038     return c;
00039 }
00040 
00041 
00042 bool USBSerial::writeBlock(uint8_t * buf, uint16_t size) {
00043     if(size > MAX_PACKET_SIZE_EPBULK) {
00044         return false;
00045     }
00046     if(!send(buf, size)) {
00047         return false;
00048     }
00049     return true;
00050 }
00051 
00052 
00053 
00054 bool USBSerial::EPBULK_OUT_callback() {
00055     uint8_t c[65];
00056     uint32_t size = 0;
00057 
00058     //we read the packet received and put it on the circular buffer
00059     readEP(c, &size);
00060     for (uint32_t i = 0; i < size; i++) {
00061         buf.queue(c[i]);
00062     }
00063 
00064     //call a potential handlenr
00065     if (rx)
00066         rx.call();
00067 
00068     return true;
00069 }
00070 
00071 uint8_t USBSerial::available() {
00072     return buf.available();
00073 }
00074 
00075 bool USBSerial::connected() {
00076     return terminal_connected;
00077 }
00078 
00079 #endif // FEATURE_USBSERIAL