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/*

USBAPI.h

Copyright (c) 2005-2014 Arduino. All right reserved.

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

*/

#ifndef __USBAPI__

#define __USBAPI__

#include <stdint.h>

namespace arduino {

//================================================================================

//================================================================================

// Low level API

typedef struct __attribute__((packed))

{

union {

uint8_t bmRequestType;

struct {

uint8_t direction : 5;

uint8_t type : 2;

uint8_t transferDirection : 1;

};

};

uint8_t bRequest;

uint8_t wValueL;

uint8_t wValueH;

uint16_t wIndex;

uint16_t wLength;

} USBSetup;

}

//================================================================================

// USB APIs (C scope)

//================================================================================

int USB_SendControl(uint8_t flags, const void* d, int len);

int USB_RecvControl(void* d, int len);

int USB_RecvControlLong(void* d, int len);

uint8_t USB_Available(uint8_t ep);

uint8_t USB_SendSpace(uint8_t ep);

int USB_Send(uint8_t ep, const void* data, int len); // blocking

int USB_Recv(uint8_t ep, void* data, int len); // non-blocking

int USB_Recv(uint8_t ep); // non-blocking

void USB_Flush(uint8_t ep);

#endif