/* Name: usb.h by Kai Lauterbach * Based on Project: hid-custom-rq example * Revision: $Id: main.c 790 2010-05-30 21:00:26Z cs $ * Author: Christian Starkjohann * Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt) */ #include "usb.h" /* ------------------------------------------------------------------------- */ usbMsgLen_t usbFunctionSetup(uchar data[8]) { usbRequest_t *rq = (void *)data; if ( (rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_VENDOR ) { if ( rq->bRequest == CUSTOM_RQ_SET_LED ) { if ( rq->wValue.bytes[0] == 1 ) cube |= ((uint32_t)1 << rq->wIndex.bytes[0]); else cube &= ~((uint32_t)1 << rq->wIndex.bytes[0]); } else if ( rq->bRequest == CUSTOM_RQ_SET_FRAME ) { if ( rq->wIndex.bytes[0] == 0 ) { cube = (cube & (uint32_t)0xffff0000) | rq->wValue.bytes[0] + (rq->wValue.bytes[1] << 8); } else if ( rq->wIndex.bytes[0] == 1 ) { cube = (cube & (uint32_t)0x0000ffff) | ((uint32_t)(rq->wValue.bytes[0] + (rq->wValue.bytes[1] << 8)) << 16); } //} else if ( rq->bRequest == CUSTOM_RQ_GET_STATUS ) { // Send one byte to the USB host. //static uchar dataBuffer[1]; // buffer must stay valid when usbFunctionSetup returns //usbMsgPtr = 0; // tell the driver which data to return //return 1; // tell the driver to send 1 byte //return 0; // tell the driver to send 0 byte } //} else { /* class requests USBRQ_HID_GET_REPORT and USBRQ_HID_SET_REPORT are * not implemented since we never call them. The operating system * won't call them either because our descriptor defines no meaning. */ } return 0; /* default for not implemented requests: return no data back to host */ } /* ------------------------------------------------------------------------- */ void init_usb(void) { uchar i; usbInit(); usbDeviceDisconnect(); /* enforce re-enumeration, do this while interrupts are disabled! */ i = 0; while(--i) { /* fake USB disconnect for > 250 ms */ //wdt_reset(); _delay_ms(1); //sleep_nop(255); } usbDeviceConnect(); sei(); // enable global interrupts } /* TODO add to the projects main init_usb(); // Even if you don't use the watchdog, turn it off here. On newer devices, // the status of the watchdog (on/off, period) is PRESERVED OVER RESET! // // RESET status: all port bits are inputs without pull-up. // That's the way we need D+ and D-. Therefore we don't need any // additional hardware initialization. wdt_enable(WDTO_1S); ...mainloop start... wdt_reset(); // we are alive, please dont reset the µC (optional) usbPoll(); // keep the usb connection up ...end mainloop... */ /* ------------------------------------------------------------------------- */