tmk_core/tool/mbed/mbed-sdk/libraries/USBDevice/USBSerial/USBSerial.cpp

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