54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#ifndef __I825XX_H
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#define __I825XX_H
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#include "ether.h"
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#define NUM_RX_DESCRIPTORS 768
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#define NUM_TX_DESCRIPTORS 768
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#define CTRL_FD (1 << 0)
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#define CTRL_ASDE (1 << 5)
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#define CTRL_SLU (1 << 6)
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// RX and TX descriptor structures
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struct i825xx_rx_desc_t
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{
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volatile unsigned long long address;
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volatile unsigned short length;
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volatile unsigned short checksum;
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volatile unsigned char status;
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volatile unsigned char error;
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volatile unsigned short special;
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}__attribute__((packed));
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struct i825xx_tx_desc_t
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{
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volatile unsigned long long address;
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volatile unsigned short length;
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volatile unsigned char cso;
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volatile unsigned char cmd;
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volatile unsigned char sta;
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volatile unsigned char css;
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volatile unsigned short special;
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} __attribute__((packed));
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// Device-specific structure
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struct i825xx_device_t
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{
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unsigned int mmio_address;
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//unsigned int io_address;
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unsigned int rx_front;
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unsigned int tx_front;
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struct i825xx_rx_desc_t *rx_desc; // receive descriptor buffe
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struct i825xx_tx_desc_t *tx_desc; // transmit descriptor buffer
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char *rx_buff[NUM_RX_DESCRIPTORS];
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char *tx_buff[NUM_TX_DESCRIPTORS];
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unsigned char *rx_desc_base, *tx_desc_base;
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struct ether_t *ether;
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};
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extern struct ether_t *init_i825xx(int count);
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extern int i825xx_send(struct i825xx_device_t *i825xx_device, char *packet, int len);
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extern void i825xx_enable(struct ether_t *ether);
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#endif
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