/*
 * FreeRTOS Kernel V10.0.1
 * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * http://www.FreeRTOS.org
 * http://aws.amazon.com/freertos
 *
 * 1 tab == 4 spaces!
 */

/* Descriptor type definitions. */
#define usbDESCRIPTOR_TYPE_DEVICE			( 0x01 )
#define usbDESCRIPTOR_TYPE_CONFIGURATION	( 0x02 )
#define usbDESCRIPTOR_TYPE_STRING			( 0x03 )

/* USB request type definitions. */
#define usbGET_REPORT_REQUEST				( 0x01 )
#define usbGET_IDLE_REQUEST					( 0x02 )
#define usbGET_PROTOCOL_REQUEST				( 0x03 )
#define usbSET_REPORT_REQUEST				( 0x09 )
#define usbSET_IDLE_REQUEST					( 0x0A )
#define usbSET_PROTOCOL_REQUEST				( 0x0B )
#define usbGET_CONFIGURATION_REQUEST		( 0x08 )
#define usbGET_STATUS_REQUEST				( 0x00 )
#define usbCLEAR_FEATURE_REQUEST			( 0x01 )
#define usbSET_FEATURE_REQUEST				( 0x03 )
#define usbSET_ADDRESS_REQUEST				( 0x05 )
#define usbGET_DESCRIPTOR_REQUEST			( 0x06 )
#define usbSET_CONFIGURATION_REQUEST		( 0x09 )
#define usbGET_INTERFACE_REQUEST			( 0x0A )
#define usbSET_INTERFACE_REQUEST			( 0x0B )

/* ACM Requests */
#define usbSEND_ENCAPSULATED_COMMAND		( 0x00 )
#define usbGET_ENCAPSULATED_RESPONSE		( 0x01 )
#define usbSET_LINE_CODING					( 0x20 )
#define usbGET_LINE_CODING					( 0x21 )
#define usbSET_CONTROL_LINE_STATE			( 0x22 )

/* Misc USB definitions. */
#define usbDEVICE_CLASS_VENDOR_SPECIFIC		( 0xFF )
#define usbBUS_POWERED						( 0x80 )
#define usbHID_REPORT_DESCRIPTOR			( 0x22 )
#define AT91C_UDP_TRANSCEIVER_ENABLE		( *( ( unsigned long * ) 0xfffb0074 ) )

/* Index to the various string. */
#define usbLANGUAGE_STRING					( 0 )
#define usbMANUFACTURER_STRING				( 1 )
#define usbPRODUCT_STRING					( 2 )
#define usbCONFIGURATION_STRING				( 3 )
#define usbINTERFACE_STRING					( 4 )

/* Defines fields of standard SETUP request.  Now in normal order. */
#define usbREQUEST_TYPE_INDEX				( 0 )
#define usbREQUEST_INDEX					( 1 )
#define usbVALUE_HIGH_BYTE					( 3 )
#define usbVALUE_LOW_BYTE					( 2 )
#define usbINDEX_HIGH_BYTE					( 5 )
#define usbINDEX_LOW_BYTE					( 4 )
#define usbLENGTH_HIGH_BYTE					( 7 )
#define usbLENGTH_LOW_BYTE					( 6 )

/* Misc application definitions. */
#define usbINTERRUPT_PRIORITY				( 3 )
#define usbQUEUE_LENGTH						( 0x3 )	/* Must have all bits set! */
#define usbFIFO_LENGTH						( ( unsigned long ) 8 )
#define usbEND_POINT_0						( 0 )
#define usbEND_POINT_1						( 1 )
#define usbEND_POINT_2						( 2 )
#define usbEND_POINT_3						( 3 )
#define usbMAX_CONTROL_MESSAGE_SIZE			( 128 )
#define usbRX_COUNT_MASK					( ( unsigned long ) 0x7ff )
#define AT91C_UDP_STALLSENT					AT91C_UDP_ISOERROR
#define usbSHORTEST_DELAY					( ( TickType_t ) 1 )
#define usbINIT_DELAY						( ( TickType_t ) 1000 / portTICK_PERIOD_MS )
#define usbSHORT_DELAY						( ( TickType_t ) 50 / portTICK_PERIOD_MS )
#define usbEND_POINT_RESET_MASK				( ( unsigned long ) 0x0f )
#define usbDATA_INC							( ( char ) 5 )
#define usbEXPECTED_NUMBER_OF_BYTES			( ( unsigned long ) 8 )

/* Control request types. */
#define usbSTANDARD_DEVICE_REQUEST			( 0 )
#define usbSTANDARD_INTERFACE_REQUEST		( 1 )
#define usbSTANDARD_END_POINT_REQUEST		( 2 )
#define usbCLASS_INTERFACE_REQUEST			( 5 )


/* 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 long * ) pulValueNow ) ) |= ( unsigned long ) 0x4f;		\
																						\
	/* Clear the FORCE_STALL and TXPKTRDY bits */										\
	/* so the write has no effect. */													\
	( * ( ( unsigned long * ) pulValueNow ) ) &= ( unsigned long ) 0xffffffcf;	\
																						\
	/* Set whichever bit we want set. */												\
	( * ( ( unsigned long * ) pulValueNow ) ) |= ( ulBit );							\
}

#define usbCSR_CLEAR_BIT( pulValueNow, ulBit )											\
{																						\
	/* Set TXCOMP, RX_DATA_BK0, RXSETUP, */												\
	/* STALLSENT and RX_DATA_BK1 to 1 so the */											\
	/* write has no effect. */															\
	( * ( ( unsigned long * ) pulValueNow ) ) |= ( unsigned long ) 0x4f;		\
																						\
	/* Clear the FORCE_STALL and TXPKTRDY bits */										\
	/* so the write has no effect. */													\
	( * ( ( unsigned long * ) pulValueNow ) ) &= ( unsigned long ) 0xffffffcf;	\
																						\
	/* Clear whichever bit we want clear. */											\
	( * ( ( unsigned long * ) pulValueNow ) ) &= ( ~ulBit );						\
}