80 lines
1.7 KiB
C
80 lines
1.7 KiB
C
#ifndef ISA_H
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#define ISA_H
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#include "isa_ids.h"
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#include "dev.h"
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/*
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* A physical ISA device
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*
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*/
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struct isa_device {
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char *magic; /* must be first */
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unsigned int probe_idx;
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uint16_t ioaddr;
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int already_tried;
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};
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/*
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* An individual ISA device, identified by probe address
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*
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*/
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struct isa_probe_addr {
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uint16_t addr;
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} __attribute__ (( packed ));
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/*
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* An ISA driver, with a probe address list and a probe_addr method.
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* probe_addr() should return 1 if a card is physically present,
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* leaving the other operations (read MAC address etc.) down to the
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* main probe() routine.
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*
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*/
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struct isa_driver {
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const char *name;
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struct isa_probe_addr *probe_addrs;
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unsigned int addr_count;
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int ( * probe_addr ) ( uint16_t addr );
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uint16_t mfg_id;
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uint16_t prod_id;
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};
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/*
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* Define an ISA driver
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*
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*/
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#define ISA_DRIVER( _name, _probe_addrs, _probe_addr, _mfg_id, _prod_id ) { \
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.name = _name, \
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.probe_addrs = _probe_addrs, \
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.addr_count = sizeof ( _probe_addrs ) / sizeof ( probe_addrs[0] ), \
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.probe_addr = _probe_addr, \
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.mfg_id = _mfg_id, \
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.prod_id = _prod_id, \
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}
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/*
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* ISA_ROM is parsed by parserom.pl to generate Makefile rules and
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* files for rom-o-matic.
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*
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*/
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#define ISA_ROM( IMAGE, DESCRIPTION )
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/*
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* Functions in isa.c
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*
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*/
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extern int find_isa_device ( struct isa_device *eisa,
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struct isa_driver *driver );
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extern int find_isa_boot_device ( struct dev *dev,
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struct isa_driver *driver );
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/*
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* config.c defines isa_extra_probe_addrs and isa_extra_probe_addr_count.
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*
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*/
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extern struct isa_probe_addr isa_extra_probe_addrs[];
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extern unsigned int isa_extra_probe_addr_count;
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#endif /* ISA_H */
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