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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ColdFire_MCF51CN128_CodeWarrior/] [Sources/] [fecbd.h] - Rev 592
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/* * File: fecbd.h * Purpose: * * Purpose: Provide a simple buffer management driver */ #ifndef _FECBD_H_ #define _FECBD_H_ /********************************************************************/ #define Rx 1 #define Tx 0 /* * Buffer sizes in bytes */ #ifndef RX_BUF_SZ #define RX_BUF_SZ 1520 //2048 #endif #ifndef TX_BUF_SZ #define TX_BUF_SZ 1520 #endif /* * Buffer Descriptor Format */ #pragma options align= packed typedef struct { unsigned short status; /* control and status */ unsigned short length; /* transfer length */ unsigned char *data; /* buffer address */ } FECBD; /* * Bit level definitions for status field of buffer descriptors */ #define TX_BD_R 0x8000 #define TX_BD_TO1 0x4000 #define TX_BD_W 0x2000 #define TX_BD_TO2 0x1000 #define TX_BD_INTERRUPT 0x1000 /* MCF547x/8x Only */ #define TX_BD_L 0x0800 #define TX_BD_TC 0x0400 #define TX_BD_DEF 0x0200 /* MCF5272 Only */ #define TX_BD_ABC 0x0200 #define TX_BD_HB 0x0100 /* MCF5272 Only */ #define TX_BD_LC 0x0080 /* MCF5272 Only */ #define TX_BD_RL 0x0040 /* MCF5272 Only */ #define TX_BD_UN 0x0002 /* MCF5272 Only */ #define TX_BD_CSL 0x0001 /* MCF5272 Only */ #define RX_BD_E 0x8000 #define RX_BD_R01 0x4000 #define RX_BD_W 0x2000 #define RX_BD_R02 0x1000 #define RX_BD_INTERRUPT 0x1000 /* MCF547x/8x Only */ #define RX_BD_L 0x0800 #define RX_BD_M 0x0100 #define RX_BD_BC 0x0080 #define RX_BD_MC 0x0040 #define RX_BD_LG 0x0020 #define RX_BD_NO 0x0010 #define RX_BD_CR 0x0004 #define RX_BD_OV 0x0002 #define RX_BD_TR 0x0001 #define RX_BD_ERROR (RX_BD_NO | RX_BD_CR | RX_BD_OV | RX_BD_TR) /* * The following defines are provided by the MCF547x/8x * DMA API. These are shown here to show their correlation * to the other FEC buffer descriptor status bits * * #define MCD_FEC_BUF_READY 0x8000 * #define MCD_FEC_WRAP 0x2000 * #define MCD_FEC_INTERRUPT 0x1000 * #define MCD_FEC_END_FRAME 0x0800 */ /* * Functions provided in fec_bd.c */ int fecbd_init(int, int, int); void fecbd_flush(int); void fecbd_dump( void ); unsigned long fecbd_get_start(int, int); FECBD* fecbd_rx_alloc(int); FECBD* fecbd_tx_alloc(int); FECBD* fecbd_tx_free(int); /* * Error codes */ #define ERR_MALLOC (-1) #define ERR_NBUFALLOC (-2) /*******************************************************************/ #endif /* _FECBD_H_ */
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