Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

features/unsupported/USBDevice/USBSerial/USBSerial.cpp@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
elessair 0:f269e3021894 2 *
elessair 0:f269e3021894 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
elessair 0:f269e3021894 4 * and associated documentation files (the "Software"), to deal in the Software without
elessair 0:f269e3021894 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
elessair 0:f269e3021894 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
elessair 0:f269e3021894 7 * Software is furnished to do so, subject to the following conditions:
elessair 0:f269e3021894 8 *
elessair 0:f269e3021894 9 * The above copyright notice and this permission notice shall be included in all copies or
elessair 0:f269e3021894 10 * substantial portions of the Software.
elessair 0:f269e3021894 11 *
elessair 0:f269e3021894 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
elessair 0:f269e3021894 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
elessair 0:f269e3021894 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
elessair 0:f269e3021894 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
elessair 0:f269e3021894 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
elessair 0:f269e3021894 17 */
elessair 0:f269e3021894 18
elessair 0:f269e3021894 19 #include "stdint.h"
elessair 0:f269e3021894 20 #include "USBSerial.h"
elessair 0:f269e3021894 21
elessair 0:f269e3021894 22 int USBSerial::_putc(int c) {
elessair 0:f269e3021894 23 if (!terminal_connected)
elessair 0:f269e3021894 24 return 0;
elessair 0:f269e3021894 25 send((uint8_t *)&c, 1);
elessair 0:f269e3021894 26 return 1;
elessair 0:f269e3021894 27 }
elessair 0:f269e3021894 28
elessair 0:f269e3021894 29 int USBSerial::_getc() {
elessair 0:f269e3021894 30 uint8_t c = 0;
elessair 0:f269e3021894 31 while (buf.isEmpty());
elessair 0:f269e3021894 32 buf.dequeue(&c);
elessair 0:f269e3021894 33 return c;
elessair 0:f269e3021894 34 }
elessair 0:f269e3021894 35
elessair 0:f269e3021894 36
elessair 0:f269e3021894 37 bool USBSerial::writeBlock(uint8_t * buf, uint16_t size) {
elessair 0:f269e3021894 38 if(size > MAX_PACKET_SIZE_EPBULK) {
elessair 0:f269e3021894 39 return false;
elessair 0:f269e3021894 40 }
elessair 0:f269e3021894 41 if(!send(buf, size)) {
elessair 0:f269e3021894 42 return false;
elessair 0:f269e3021894 43 }
elessair 0:f269e3021894 44 return true;
elessair 0:f269e3021894 45 }
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47
elessair 0:f269e3021894 48
elessair 0:f269e3021894 49 bool USBSerial::EPBULK_OUT_callback() {
elessair 0:f269e3021894 50 uint8_t c[65];
elessair 0:f269e3021894 51 uint32_t size = 0;
elessair 0:f269e3021894 52
elessair 0:f269e3021894 53 //we read the packet received and put it on the circular buffer
elessair 0:f269e3021894 54 readEP(c, &size);
elessair 0:f269e3021894 55 for (uint32_t i = 0; i < size; i++) {
elessair 0:f269e3021894 56 buf.queue(c[i]);
elessair 0:f269e3021894 57 }
elessair 0:f269e3021894 58
elessair 0:f269e3021894 59 //call a potential handler
elessair 0:f269e3021894 60 rx.call();
elessair 0:f269e3021894 61
elessair 0:f269e3021894 62 return true;
elessair 0:f269e3021894 63 }
elessair 0:f269e3021894 64
elessair 0:f269e3021894 65 uint8_t USBSerial::available() {
elessair 0:f269e3021894 66 return buf.available();
elessair 0:f269e3021894 67 }