usr/src/grub/grub-0.97/netboot/nic.h

   1  /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public License as
   4  * published by the Free Software Foundation; either version 2, or (at
   5  * your option) any later version.
   6  */
   7
   8 #ifndef NIC_H
   9 #define NIC_H
  10
  11 #include "dev.h"
  12
  13 typedef enum {
  14         DISABLE = 0,
  15         ENABLE,
  16         FORCE
  17 } irq_action_t;
  18
  19 /*
  20  *      Structure returned from eth_probe and passed to other driver
  21  *      functions.
  22  */
  23 struct nic
  24 {
  25         struct dev      dev;  /* This must come first */
  26         int             (*poll)P((struct nic *, int retrieve));
  27         void            (*transmit)P((struct nic *, const char *d,
  28                                 unsigned int t, unsigned int s, const char *p));
  29         void            (*irq)P((struct nic *, irq_action_t));
  30         int             flags;  /* driver specific flags */
  31         struct rom_info *rom_info;      /* -> rom_info from main */
  32         unsigned char   *node_addr;
  33         unsigned char   *packet;
  34         unsigned int    packetlen;
  35         unsigned int    ioaddr;
  36         unsigned char   irqno;
  37         void            *priv_data;     /* driver can hang private data here */
  38 };
  39
  40 extern int  eth_probe(struct dev *dev);
  41 extern int  eth_poll(int retrieve);
  42 extern void eth_transmit(const char *d, unsigned int t, unsigned int s, const void *p);
  43 extern void eth_disable(void);
  44 extern void eth_irq(irq_action_t action);
  45 #endif  /* NIC_H */