diff options
Diffstat (limited to 'Demo/Common/ethernet/lwIP_130/contrib/port/FreeRTOS/ColdFire/fecbd.h')
| -rw-r--r-- | Demo/Common/ethernet/lwIP_130/contrib/port/FreeRTOS/ColdFire/fecbd.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/Demo/Common/ethernet/lwIP_130/contrib/port/FreeRTOS/ColdFire/fecbd.h b/Demo/Common/ethernet/lwIP_130/contrib/port/FreeRTOS/ColdFire/fecbd.h new file mode 100644 index 00000000..546b2ce0 --- /dev/null +++ b/Demo/Common/ethernet/lwIP_130/contrib/port/FreeRTOS/ColdFire/fecbd.h @@ -0,0 +1,101 @@ +/*
+ * 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
+{
+ uint16 status; /* control and status */
+ uint16 length; /* transfer length */
+ uint8 *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 );
+uint32 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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