VUSB-Firmware for Attiny85 implementing HMAC one time password authentication
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hmac-otp/main.c

60 lines
2.1 KiB

#include "main.h"
static uint8_t reportBuffer[64];
const PROGMEM char usbHidReportDescriptor[35] = { /* USB report descriptor */
0x05, 0x01, // USAGE_PAGE (Generic Desktop)
0x09, 0x06, // USAGE (Keyboard)
0xa1, 0x01, // COLLECTION (Application)
0x05, 0x07, // USAGE_PAGE (Keyboard)
0x19, 0xe0, // USAGE_MINIMUM (Keyboard LeftControl)
0x29, 0xe7, // USAGE_MAXIMUM (Keyboard Right GUI)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x08, // REPORT_COUNT (8)
0x81, 0x02, // INPUT (Data,Var,Abs)
0x95, 0x01, // REPORT_COUNT (1)
0x75, 0x08, // REPORT_SIZE (8)
0x25, 0x65, // LOGICAL_MAXIMUM (101)
0x19, 0x00, // USAGE_MINIMUM (Reserved (no event indicated))
0x29, 0x65, // USAGE_MAXIMUM (Keyboard Application)
0x81, 0x00, // INPUT (Data,Ary,Abs)
0xc0 // END_COLLECTION
};
usbMsgLen_t usbFunctionSetup(uchar data[8]) {
usbRequest_t *rq = (void *)data;
usbMsgPtr = reportBuffer;
if((rq->bmRequestType & USBRQ_TYPE_MASK) == USBRQ_TYPE_CLASS) { /* HID class request */
if(rq->bRequest == USBRQ_HID_GET_REPORT) { /* wValue: ReportType (highbyte), ReportID (lowbyte) */
/* since we have only one report type, we can ignore the report-ID */
//buildReport();
return sizeof(reportBuffer);
}/*else if(rq->bRequest == USBRQ_HID_GET_IDLE){
usbMsgPtr = &idleRate;
return 1;
}else if(rq->bRequest == USBRQ_HID_SET_IDLE){
idleRate = rq->wValue.bytes[1];
}*/
} else {
/* ignore vendor type requests, we don't use any */
}
return 0;
}
int main(void){
usbDeviceDisconnect();
_delay_ms(200);
usbDeviceConnect();
usbInit();
//printf("OTP: %d\n", get_otp_from_cnt(7,6) );
for(;;){
}
return 0;
}