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90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2, or (at
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* your option) any later version.
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*/
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#ifndef NIC_H
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#define NIC_H
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#include "dev.h"
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#include "byteswap.h"
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#include "dhcp.h"
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typedef enum {
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DISABLE = 0,
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ENABLE,
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FORCE
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} irq_action_t;
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typedef enum duplex {
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HALF_DUPLEX = 1,
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FULL_DUPLEX
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} duplex_t;
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/*
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* Structure returned from eth_probe and passed to other driver
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* functions.
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*/
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struct nic {
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struct nic_operations *nic_op;
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int flags; /* driver specific flags */
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unsigned char *node_addr;
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unsigned char *packet;
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unsigned int packetlen;
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unsigned int ioaddr;
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unsigned char irqno;
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unsigned int mbps;
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duplex_t duplex;
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struct dhcp_dev_id dhcp_dev_id;
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void *priv_data; /* driver private data */
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};
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struct nic_operations {
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int ( *connect ) ( struct nic * );
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int ( *poll ) ( struct nic *, int retrieve );
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void ( *transmit ) ( struct nic *, const char *,
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unsigned int, unsigned int, const char * );
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void ( *irq ) ( struct nic *, irq_action_t );
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};
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extern struct type_driver nic_driver;
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/*
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* Function prototypes
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*
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*/
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extern int dummy_connect ( struct nic *nic );
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extern void dummy_irq ( struct nic *nic, irq_action_t irq_action );
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extern void nic_disable ( struct nic *nic );
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/*
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* Functions that implicitly operate on the current boot device
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*
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*/
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extern struct nic nic;
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static inline int eth_connect ( void ) {
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return nic.nic_op->connect ( &nic );
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}
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static inline int eth_poll ( int retrieve ) {
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return nic.nic_op->poll ( &nic, retrieve );
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}
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static inline void eth_transmit ( const char *dest, unsigned int type,
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unsigned int size, const void *packet ) {
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nic.nic_op->transmit ( &nic, dest, type, size, packet );
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}
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static inline void eth_irq ( irq_action_t action ) {
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nic.nic_op->irq ( &nic, action );
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}
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/* Should be using disable() rather than eth_disable() */
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extern void eth_disable ( void ) __attribute__ (( deprecated ));
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#endif /* NIC_H */
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