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77 lines
1.3 KiB
C
77 lines
1.3 KiB
C
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#ifndef EISA_H
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#define EISA_H
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#include "isa_ids.h"
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/*
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* EISA constants
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*
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*/
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#define EISA_MIN_SLOT (0x1)
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#define EISA_MAX_SLOT (0xf)
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#define EISA_SLOT_BASE( n ) ( 0x1000 * (n) )
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#define EISA_MFG_ID_HI ( 0xc80 )
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#define EISA_MFG_ID_LO ( 0xc81 )
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#define EISA_PROD_ID_HI ( 0xc82 )
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#define EISA_PROD_ID_LO ( 0xc83 )
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#define EISA_GLOBAL_CONFIG ( 0xc84 )
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#define EISA_CMD_RESET ( 1 << 2 )
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#define EISA_CMD_ENABLE ( 1 << 0 )
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/*
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* A physical EISA device
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*
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*/
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struct dev;
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struct eisa_device {
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struct dev *dev;
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unsigned int slot;
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uint16_t ioaddr;
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uint16_t mfg_id;
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uint16_t prod_id;
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int already_tried;
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};
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/*
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* An individual EISA device identified by ID
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*
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*/
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struct eisa_id {
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const char *name;
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uint16_t mfg_id, prod_id;
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};
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/*
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* An EISA driver, with a device ID (struct eisa_id) table.
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*
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*/
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struct eisa_driver {
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const char *name;
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struct eisa_id *ids;
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unsigned int id_count;
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};
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/*
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* Define an EISA driver
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*
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*/
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#define EISA_DRIVER( driver_name, eisa_ids ) { \
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.name = driver_name, \
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.ids = eisa_ids, \
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.id_count = sizeof ( eisa_ids ) / sizeof ( eisa_ids[0] ), \
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}
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/*
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* Functions in eisa.c
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*
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*/
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extern struct eisa_device * eisa_device ( struct dev *dev );
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extern int find_eisa_device ( struct eisa_device *eisa,
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struct eisa_driver *driver );
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extern void enable_eisa_device ( struct eisa_device *eisa );
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#endif /* EISA_H */
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