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@ -1,5 +1,5 @@
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/*
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FreeRTOS V5.4.2 - Copyright (C) 2009 Real Time Engineers Ltd.
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FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd.
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This file is part of the FreeRTOS distribution.
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@ -25,8 +25,9 @@
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***************************************************************************
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* *
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* Looking for a quick start? Then check out the FreeRTOS eBook! *
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* See http://www.FreeRTOS.org/Documentation for details *
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* The FreeRTOS eBook and reference manual are available to purchase for a *
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* small fee. Help yourself get started quickly while also helping the *
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* FreeRTOS project! See http://www.FreeRTOS.org/Documentation for details *
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* *
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***************************************************************************
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@ -99,7 +100,7 @@ static void prvHandleStandardEndPointRequest( xUSB_REQUEST *pxRequest );
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static void prvHandleClassInterfaceRequest( xUSB_REQUEST *pxRequest );
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/* Prepare control data transfer. prvSendNextSegment starts transfer. */
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static void prvSendControlData( unsigned portCHAR *pucData, unsigned portSHORT usRequestedLength, unsigned portLONG ulLengthLeftToSend, portLONG lSendingDescriptor );
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static void prvSendControlData( unsigned char *pucData, unsigned short usRequestedLength, unsigned long ulLengthLeftToSend, long lSendingDescriptor );
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/* Send next segment of data for the control transfer */
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static void prvSendNextSegment( void );
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@ -116,8 +117,8 @@ static void prvGetStandardInterfaceDescriptor( xUSB_REQUEST *pxRequest );
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/*------------------------------------------------------------*/
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/* File scope static variables */
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static unsigned portCHAR ucUSBConfig = ( unsigned portCHAR ) 0;
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static unsigned portLONG ulReceivedAddress = ( unsigned portLONG ) 0;
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static unsigned char ucUSBConfig = ( unsigned char ) 0;
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static unsigned long ulReceivedAddress = ( unsigned long ) 0;
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static eDRIVER_STATE eDriverState = eNOTHING;
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/* Incoming and outgoing control data structures */
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@ -133,10 +134,10 @@ static xQueueHandle xRxCDC;
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static xQueueHandle xTxCDC;
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/* Line coding - 115,200 baud, N-8-1 */
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static const unsigned portCHAR pxLineCoding[] = { 0x00, 0xC2, 0x01, 0x00, 0x00, 0x00, 0x08 };
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static const unsigned char pxLineCoding[] = { 0x00, 0xC2, 0x01, 0x00, 0x00, 0x00, 0x08 };
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/* Status variables. */
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static unsigned portCHAR ucControlState;
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static unsigned char ucControlState;
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static unsigned int uiCurrentBank;
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@ -146,9 +147,9 @@ static unsigned int uiCurrentBank;
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void vUSBCDCTask( void *pvParameters )
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{
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xISRStatus *pxMessage;
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unsigned portLONG ulStatus;
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unsigned portLONG ulRxBytes;
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unsigned portCHAR ucByte;
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unsigned long ulStatus;
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unsigned long ulRxBytes;
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unsigned char ucByte;
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portBASE_TYPE xByte;
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( void ) pvParameters;
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@ -251,7 +252,7 @@ portBASE_TYPE xByte;
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}
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/*------------------------------------------------------------*/
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void vUSBSendByte( portCHAR cByte )
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void vUSBSendByte( char cByte )
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{
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/* Queue the byte to be sent. The USB task will send it. */
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xQueueSend( xTxCDC, &cByte, usbNO_BLOCK );
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@ -260,7 +261,7 @@ void vUSBSendByte( portCHAR cByte )
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static void prvSendZLP( void )
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{
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unsigned portLONG ulStatus;
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unsigned long ulStatus;
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/* Wait until the FIFO is free - even though we are not going to use it.
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THERE IS NO TIMEOUT HERE! */
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@ -285,7 +286,7 @@ unsigned portLONG ulStatus;
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static void prvSendStall( void )
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{
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unsigned portLONG ulStatus;
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unsigned long ulStatus;
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portENTER_CRITICAL();
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{
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@ -300,14 +301,14 @@ static void prvSendStall( void )
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static void prvResetEndPoints( void )
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{
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unsigned portLONG ulTemp;
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unsigned long ulTemp;
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eDriverState = eJUST_RESET;
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ucControlState = 0;
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/* Reset all the end points. */
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AT91C_BASE_UDP->UDP_RSTEP = usbEND_POINT_RESET_MASK;
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AT91C_BASE_UDP->UDP_RSTEP = ( unsigned portLONG ) 0x00;
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AT91C_BASE_UDP->UDP_RSTEP = ( unsigned long ) 0x00;
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/* Enable data to be sent and received. */
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AT91C_BASE_UDP->UDP_FADDR = AT91C_UDP_FEN;
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@ -316,7 +317,7 @@ unsigned portLONG ulTemp;
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portENTER_CRITICAL();
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{
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ulTemp = AT91C_BASE_UDP->UDP_CSR[ usbEND_POINT_0 ];
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usbCSR_SET_BIT( &ulTemp, ( ( unsigned portLONG ) ( AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL ) ) );
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usbCSR_SET_BIT( &ulTemp, ( ( unsigned long ) ( AT91C_UDP_EPEDS | AT91C_UDP_EPTYPE_CTRL ) ) );
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AT91C_BASE_UDP->UDP_CSR[ usbEND_POINT_0 ] = ulTemp;
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AT91C_BASE_UDP->UDP_IER = AT91C_UDP_EPINT0;
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}
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@ -328,7 +329,7 @@ unsigned portLONG ulTemp;
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static void prvProcessEndPoint0Interrupt( xISRStatus *pxMessage )
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{
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static xUSB_REQUEST xRequest;
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unsigned portLONG ulRxBytes;
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unsigned long ulRxBytes;
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/* Get number of bytes received, if any */
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ulRxBytes = pxMessage->ulCSR0 >> 16;
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@ -351,7 +352,7 @@ unsigned portLONG ulRxBytes;
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/* Set up endpoints */
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portENTER_CRITICAL();
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{
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unsigned portLONG ulTemp;
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unsigned long ulTemp;
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/* Set endpoint 1 to bulk-out */
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ulTemp = AT91C_BASE_UDP->UDP_CSR[ usbEND_POINT_1 ];
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@ -377,7 +378,7 @@ unsigned portLONG ulRxBytes;
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{
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/* We sent an acknowledgement of a SET_ADDRESS request. Move
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to the addressed state. */
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if( ulReceivedAddress != ( unsigned portLONG ) 0 )
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if( ulReceivedAddress != ( unsigned long ) 0 )
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{
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AT91C_BASE_UDP->UDP_GLBSTATE = AT91C_UDP_FADDEN;
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}
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@ -400,7 +401,7 @@ unsigned portLONG ulRxBytes;
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if( pxMessage->ulCSR0 & AT91C_UDP_RX_DATA_BK0 )
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{
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/* Received a control data packet. May be a 0-length ACK or a data stage. */
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unsigned portCHAR ucBytesToGet;
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unsigned char ucBytesToGet;
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/* Got data. Cancel any outgoing data. */
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pxControlTx.ulNextCharIndex = pxControlTx.ulTotalDataLength;
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@ -470,7 +471,7 @@ unsigned portLONG ulRxBytes;
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if( ( pxMessage->ulCSR0 & ( AT91C_UDP_RX_DATA_BK0 | AT91C_UDP_RXSETUP ) )
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&& ( pxControlRx.ulNextCharIndex >= pxControlRx.ulTotalDataLength ) )
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{
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unsigned portCHAR ucRequest;
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unsigned char ucRequest;
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/* Manipulate the ucRequestType and the ucRequest parameters to
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generate a zero based request selection. This is just done to
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@ -515,11 +516,11 @@ static void prvGetStandardDeviceDescriptor( xUSB_REQUEST *pxRequest )
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switch( ( pxRequest->usValue & 0xff00 ) >> 8 )
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{
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case usbDESCRIPTOR_TYPE_DEVICE:
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prvSendControlData( ( unsigned portCHAR * ) &pxDeviceDescriptor, pxRequest->usLength, sizeof( pxDeviceDescriptor ), pdTRUE );
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prvSendControlData( ( unsigned char * ) &pxDeviceDescriptor, pxRequest->usLength, sizeof( pxDeviceDescriptor ), pdTRUE );
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break;
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case usbDESCRIPTOR_TYPE_CONFIGURATION:
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prvSendControlData( ( unsigned portCHAR * ) &( pxConfigDescriptor ), pxRequest->usLength, sizeof( pxConfigDescriptor ), pdTRUE );
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prvSendControlData( ( unsigned char * ) &( pxConfigDescriptor ), pxRequest->usLength, sizeof( pxConfigDescriptor ), pdTRUE );
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break;
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case usbDESCRIPTOR_TYPE_STRING:
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@ -528,23 +529,23 @@ static void prvGetStandardDeviceDescriptor( xUSB_REQUEST *pxRequest )
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switch( pxRequest->usValue & 0xff )
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{
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case usbLANGUAGE_STRING:
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prvSendControlData( ( unsigned portCHAR * ) &pxLanguageStringDescriptor, pxRequest->usLength, sizeof(pxLanguageStringDescriptor), pdTRUE );
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prvSendControlData( ( unsigned char * ) &pxLanguageStringDescriptor, pxRequest->usLength, sizeof(pxLanguageStringDescriptor), pdTRUE );
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break;
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case usbMANUFACTURER_STRING:
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prvSendControlData( ( unsigned portCHAR * ) &pxManufacturerStringDescriptor, pxRequest->usLength, sizeof( pxManufacturerStringDescriptor ), pdTRUE );
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prvSendControlData( ( unsigned char * ) &pxManufacturerStringDescriptor, pxRequest->usLength, sizeof( pxManufacturerStringDescriptor ), pdTRUE );
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break;
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case usbPRODUCT_STRING:
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prvSendControlData( ( unsigned portCHAR * ) &pxProductStringDescriptor, pxRequest->usLength, sizeof( pxProductStringDescriptor ), pdTRUE );
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prvSendControlData( ( unsigned char * ) &pxProductStringDescriptor, pxRequest->usLength, sizeof( pxProductStringDescriptor ), pdTRUE );
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break;
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case usbCONFIGURATION_STRING:
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prvSendControlData( ( unsigned portCHAR * ) &pxConfigurationStringDescriptor, pxRequest->usLength, sizeof( pxConfigurationStringDescriptor ), pdTRUE );
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prvSendControlData( ( unsigned char * ) &pxConfigurationStringDescriptor, pxRequest->usLength, sizeof( pxConfigurationStringDescriptor ), pdTRUE );
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break;
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case usbINTERFACE_STRING:
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prvSendControlData( ( unsigned portCHAR * ) &pxInterfaceStringDescriptor, pxRequest->usLength, sizeof( pxInterfaceStringDescriptor ), pdTRUE );
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prvSendControlData( ( unsigned char * ) &pxInterfaceStringDescriptor, pxRequest->usLength, sizeof( pxInterfaceStringDescriptor ), pdTRUE );
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break;
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default:
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@ -562,13 +563,13 @@ static void prvGetStandardDeviceDescriptor( xUSB_REQUEST *pxRequest )
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static void prvHandleStandardDeviceRequest( xUSB_REQUEST *pxRequest )
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{
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unsigned portSHORT usStatus = 0;
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unsigned short usStatus = 0;
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switch( pxRequest->ucRequest )
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{
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case usbGET_STATUS_REQUEST:
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/* Just send two byte dummy status. */
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prvSendControlData( ( unsigned portCHAR * ) &usStatus, sizeof( usStatus ), sizeof( usStatus ), pdFALSE );
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prvSendControlData( ( unsigned char * ) &usStatus, sizeof( usStatus ), sizeof( usStatus ), pdFALSE );
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break;
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case usbGET_DESCRIPTOR_REQUEST:
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@ -578,7 +579,7 @@ unsigned portSHORT usStatus = 0;
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case usbGET_CONFIGURATION_REQUEST:
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/* Send selected device configuration */
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prvSendControlData( ( unsigned portCHAR * ) &ucUSBConfig, sizeof( ucUSBConfig ), sizeof( ucUSBConfig ), pdFALSE );
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prvSendControlData( ( unsigned char * ) &ucUSBConfig, sizeof( ucUSBConfig ), sizeof( ucUSBConfig ), pdFALSE );
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break;
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case usbSET_FEATURE_REQUEST:
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@ -589,12 +590,12 @@ unsigned portSHORT usStatus = 0;
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/* Get assigned address and send ack, but don't implement new address until we get a TXCOMP */
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prvSendZLP();
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eDriverState = eJUST_GOT_ADDRESS;
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ulReceivedAddress = ( unsigned portLONG ) pxRequest->usValue;
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ulReceivedAddress = ( unsigned long ) pxRequest->usValue;
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break;
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case usbSET_CONFIGURATION_REQUEST:
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/* Ack SET_CONFIGURATION request, but don't implement until TXCOMP */
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ucUSBConfig = ( unsigned portCHAR ) ( pxRequest->usValue & 0xff );
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ucUSBConfig = ( unsigned char ) ( pxRequest->usValue & 0xff );
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eDriverState = eJUST_GOT_CONFIG;
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prvSendZLP();
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break;
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@ -627,7 +628,7 @@ static void prvHandleClassInterfaceRequest( xUSB_REQUEST *pxRequest )
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case usbGET_LINE_CODING:
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/* Get line coding */
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prvSendControlData( (unsigned portCHAR *) &pxLineCoding, pxRequest->usLength, sizeof( pxLineCoding ), pdFALSE );
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prvSendControlData( (unsigned char *) &pxLineCoding, pxRequest->usLength, sizeof( pxLineCoding ), pdFALSE );
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break;
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case usbSET_CONTROL_LINE_STATE:
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@ -645,7 +646,7 @@ static void prvHandleClassInterfaceRequest( xUSB_REQUEST *pxRequest )
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static void prvGetStandardInterfaceDescriptor( xUSB_REQUEST *pxRequest )
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{
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switch( ( pxRequest->usValue & ( unsigned portSHORT ) 0xff00 ) >> 8 )
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switch( ( pxRequest->usValue & ( unsigned short ) 0xff00 ) >> 8 )
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{
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default:
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prvSendStall();
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@ -656,13 +657,13 @@ static void prvGetStandardInterfaceDescriptor( xUSB_REQUEST *pxRequest )
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static void prvHandleStandardInterfaceRequest( xUSB_REQUEST *pxRequest )
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{
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unsigned portSHORT usStatus = 0;
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unsigned short usStatus = 0;
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switch( pxRequest->ucRequest )
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{
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case usbGET_STATUS_REQUEST:
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/* Send dummy 2 bytes. */
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prvSendControlData( ( unsigned portCHAR * ) &usStatus, sizeof( usStatus ), sizeof( usStatus ), pdFALSE );
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prvSendControlData( ( unsigned char * ) &usStatus, sizeof( usStatus ), sizeof( usStatus ), pdFALSE );
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break;
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case usbGET_DESCRIPTOR_REQUEST:
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@ -717,8 +718,8 @@ extern void ( vUSB_ISR_Wrapper )( void );
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xUSBInterruptQueue = xQueueCreate( usbQUEUE_LENGTH + 1, sizeof( xISRStatus * ) );
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/* Create the queues used to hold Rx and Tx characters. */
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xRxCDC = xQueueCreate( USB_CDC_QUEUE_SIZE, ( unsigned portCHAR ) sizeof( signed portCHAR ) );
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xTxCDC = xQueueCreate( USB_CDC_QUEUE_SIZE + 1, ( unsigned portCHAR ) sizeof( signed portCHAR ) );
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xRxCDC = xQueueCreate( USB_CDC_QUEUE_SIZE, ( unsigned char ) sizeof( signed char ) );
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xTxCDC = xQueueCreate( USB_CDC_QUEUE_SIZE + 1, ( unsigned char ) sizeof( signed char ) );
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if( (!xUSBInterruptQueue) || (!xRxCDC) || (!xTxCDC) )
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{
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@ -727,9 +728,9 @@ extern void ( vUSB_ISR_Wrapper )( void );
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}
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/* Initialise a few state variables. */
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pxControlTx.ulNextCharIndex = ( unsigned portLONG ) 0;
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pxControlRx.ulNextCharIndex = ( unsigned portLONG ) 0;
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ucUSBConfig = ( unsigned portCHAR ) 0;
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pxControlTx.ulNextCharIndex = ( unsigned long ) 0;
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pxControlRx.ulNextCharIndex = ( unsigned long ) 0;
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ucUSBConfig = ( unsigned char ) 0;
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eDriverState = eNOTHING;
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ucControlState = 0;
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uiCurrentBank = AT91C_UDP_RX_DATA_BK0;
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@ -757,12 +758,12 @@ extern void ( vUSB_ISR_Wrapper )( void );
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/* When using the USB debugger the peripheral registers do not always get
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set to the correct default values. To make sure set the relevant registers
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manually here. */
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AT91C_BASE_UDP->UDP_IDR = ( unsigned portLONG ) 0xffffffff;
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AT91C_BASE_UDP->UDP_ICR = ( unsigned portLONG ) 0xffffffff;
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AT91C_BASE_UDP->UDP_CSR[ 0 ] = ( unsigned portLONG ) 0x00;
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AT91C_BASE_UDP->UDP_CSR[ 1 ] = ( unsigned portLONG ) 0x00;
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AT91C_BASE_UDP->UDP_CSR[ 2 ] = ( unsigned portLONG ) 0x00;
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AT91C_BASE_UDP->UDP_CSR[ 3 ] = ( unsigned portLONG ) 0x00;
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AT91C_BASE_UDP->UDP_IDR = ( unsigned long ) 0xffffffff;
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AT91C_BASE_UDP->UDP_ICR = ( unsigned long ) 0xffffffff;
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AT91C_BASE_UDP->UDP_CSR[ 0 ] = ( unsigned long ) 0x00;
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AT91C_BASE_UDP->UDP_CSR[ 1 ] = ( unsigned long ) 0x00;
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AT91C_BASE_UDP->UDP_CSR[ 2 ] = ( unsigned long ) 0x00;
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AT91C_BASE_UDP->UDP_CSR[ 3 ] = ( unsigned long ) 0x00;
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AT91C_BASE_UDP->UDP_GLBSTATE = 0;
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AT91C_BASE_UDP->UDP_FADDR = 0;
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@ -781,14 +782,14 @@ extern void ( vUSB_ISR_Wrapper )( void );
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}
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/*-----------------------------------------------------------*/
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static void prvSendControlData( unsigned portCHAR *pucData, unsigned portSHORT usRequestedLength, unsigned portLONG ulLengthToSend, portLONG lSendingDescriptor )
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static void prvSendControlData( unsigned char *pucData, unsigned short usRequestedLength, unsigned long ulLengthToSend, long lSendingDescriptor )
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{
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if( ( ( unsigned portLONG ) usRequestedLength < ulLengthToSend ) )
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if( ( ( unsigned long ) usRequestedLength < ulLengthToSend ) )
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{
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/* Cap the data length to that requested. */
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ulLengthToSend = ( unsigned portSHORT ) usRequestedLength;
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ulLengthToSend = ( unsigned short ) usRequestedLength;
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}
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else if( ( ulLengthToSend < ( unsigned portLONG ) usRequestedLength ) && lSendingDescriptor )
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else if( ( ulLengthToSend < ( unsigned long ) usRequestedLength ) && lSendingDescriptor )
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{
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/* We are sending a descriptor. If the descriptor is an exact
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multiple of the FIFO length then it will have to be terminated
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@ -810,7 +811,7 @@ static void prvSendControlData( unsigned portCHAR *pucData, unsigned portSHORT u
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/* Reinitialise the buffer index so we start sending from the start of
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the data. */
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pxControlTx.ulTotalDataLength = ulLengthToSend;
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pxControlTx.ulNextCharIndex = ( unsigned portLONG ) 0;
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pxControlTx.ulNextCharIndex = ( unsigned long ) 0;
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/* Send the first 8 bytes now. The rest will get sent in response to
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TXCOMP interrupts. */
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@ -820,7 +821,7 @@ static void prvSendControlData( unsigned portCHAR *pucData, unsigned portSHORT u
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static void prvSendNextSegment( void )
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{
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volatile unsigned portLONG ulNextLength, ulStatus, ulLengthLeftToSend;
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volatile unsigned long ulNextLength, ulStatus, ulLengthLeftToSend;
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/* Is there any data to send? */
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if( pxControlTx.ulTotalDataLength > pxControlTx.ulNextCharIndex )
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@ -845,7 +846,7 @@ volatile unsigned portLONG ulNextLength, ulStatus, ulLengthLeftToSend;
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}
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/* Write the data to the FIFO. */
|
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|
while( ulNextLength > ( unsigned portLONG ) 0 )
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while( ulNextLength > ( unsigned long ) 0 )
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{
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AT91C_BASE_UDP->UDP_FDR[ usbEND_POINT_0 ] = pxControlTx.ucBuffer[ pxControlTx.ulNextCharIndex ];
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@ -857,7 +858,7 @@ volatile unsigned portLONG ulNextLength, ulStatus, ulLengthLeftToSend;
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portENTER_CRITICAL();
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|
|
{
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|
|
ulStatus = AT91C_BASE_UDP->UDP_CSR[ usbEND_POINT_0 ];
|
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|
|
usbCSR_SET_BIT( &ulStatus, ( ( unsigned portLONG ) 0x10 ) );
|
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|
usbCSR_SET_BIT( &ulStatus, ( ( unsigned long ) 0x10 ) );
|
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|
|
AT91C_BASE_UDP->UDP_CSR[ usbEND_POINT_0 ] = ulStatus;
|
|
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|
|
}
|
|
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|
|
portEXIT_CRITICAL();
|
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Richard Barry
16 years ago