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/*
FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
***************************************************************************
* *
* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
* *
* This is a concise, step by step, 'hands on' guide that describes both *
* general multitasking concepts and FreeRTOS specifics. It presents and *
* explains numerous examples that are written using the FreeRTOS API. *
* Full source code for all the examples is provided in an accompanying *
* .zip file. *
* *
***************************************************************************
***************************************************************************
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
#ifndef USB_DEMO_H
#define USB_DEMO_H
/*-----------------------------------------------------------*/
#define usbQUEUE_LENGTH ( 0x3 ) /* Must have all bits set! */
#define usbEND_POINT_0 ( 0 )
#define usbEND_POINT_1 ( 1 )
#define usbRX_COUNT_MASK ( ( unsigned portLONG ) 0x7ff )
#define AT91C_UDP_STALLSENT AT91C_UDP_ISOERROR
/* Structure used to take a snapshot of the USB status from within the ISR. */
typedef struct X_ISR_STATUS
{
unsigned portLONG ulISR;
unsigned portLONG ulCSR0;
unsigned portCHAR ucFifoData[ 8 ];
} xISRStatus;
/* Macros to manipulate the control and status registers. These registers
cannot be accessed using a direct read modify write operation outside of the
ISR as some bits are left unchanged by writing with a 0, and some are left
unchanged by writing with a 1. */
#define usbCSR_SET_BIT( pulValueNow, ulBit ) \
{ \
/* Set TXCOMP, RX_DATA_BK0, RXSETUP, */ \
/* STALLSENT and RX_DATA_BK1 to 1 so the */ \
/* write has no effect. */ \
( * ( ( unsigned portLONG * ) pulValueNow ) ) |= ( unsigned portLONG ) 0x4f; \
\
/* Clear the FORCE_STALL and TXPKTRDY bits */ \
/* so the write has no effect. */ \
( * ( ( unsigned portLONG * ) pulValueNow ) ) &= ( unsigned portLONG ) 0xffffffcf; \
\
/* Set whichever bit we want set. */ \
( * ( ( unsigned portLONG * ) pulValueNow ) ) |= ( ulBit ); \
}
/*
* Creates the queue used to communicate between the USB task and the USB ISR, then
* createst the task that manages the USB peripheral.
*/
void vStartUSBTask( unsigned portBASE_TYPE uxPriority );
#endif
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