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