/****************************************************************************** * The MIT License * * Copyright (c) 2010 Perry Hung. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. *****************************************************************************/ /** * @brief Wirish USB class for easy communication, uses libmaple's * virtual com port implementation */ #include <string.h> #include "wirish.h" #include "usb.h" #define USB_TIMEOUT 50 USBSerial :: USBSerial(void) { } void USBSerial::begin(void) { setupUSB(); } void USBSerial::end(void) { disableUSB(); } void USBSerial::write(uint8 ch) { if(!(usbIsConnected() && usbIsConfigured())) { return; } uint16 status = 0; uint32 start = millis(); while(status == 0 && (millis() - start <= USB_TIMEOUT)) { status = usbSendBytes(&ch, 1); } } void USBSerial::write(const char *str) { if(!(usbIsConnected() && usbIsConfigured())) { return; } uint32 len = strlen(str); uint16 status = 0; uint16 oldstatus = 0; uint32 start = millis(); while(status < len && (millis() - start < USB_TIMEOUT)) { status += usbSendBytes((uint8*)str+status, len-status); if(oldstatus != status) start = millis(); oldstatus = status; } } void USBSerial::write(void *buf, uint32 size) { if(!(usbIsConnected() && usbIsConfigured())) { return; } if (!buf) { return; } uint16 status = 0; uint16 oldstatus = 0; uint32 start = millis(); while(status < size && (millis() - start < USB_TIMEOUT)) { status += usbSendBytes((uint8*)buf+status, size-status); if(oldstatus != status) start = millis(); oldstatus = status; } } uint32 USBSerial::available(void) { return usbBytesAvailable(); } /* blocks forever until len_bytes is received */ uint32 USBSerial::read(void *buf, uint32 len) { if (!buf) { return 0; } uint32 bytes_in = 0; while (len > 0) { uint32 new_bytes = usbReceiveBytes((uint8*)((uint8*)buf+bytes_in), len); len -= new_bytes; bytes_in += new_bytes; } return len; } /* blocks forever until 1 byte is received */ uint8 USBSerial::read(void) { uint8 ch; while (usbReceiveBytes(&ch, 1) == 0); return ch; } uint8 USBSerial::pending(void) { return usbGetPending(); } // TODO deprecate the crap out of this uint8 USBSerial::getDTR(void) { return usbGetDTR(); } // TODO deprecate the crap out of this uint8 USBSerial::getRTS(void) { return usbGetRTS(); } uint8 USBSerial::isConnected(void) { return (usbIsConnected() && usbIsConfigured()); } USBSerial SerialUSB;