mirror of
https://github.com/xcat2/xNBA.git
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76 lines
1.2 KiB
C
76 lines
1.2 KiB
C
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/*
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* MCA bus driver code
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*
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* Abstracted from 3c509.c.
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*
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*/
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#ifndef MCA_H
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#define MCA_H
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/*
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* MCA constants
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*
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*/
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#define MCA_MOTHERBOARD_SETUP_REG 0x94
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#define MCA_ADAPTER_SETUP_REG 0x96
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#define MCA_MAX_SLOT_NR 8
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#define MCA_POS_REG(n) (0x100+(n))
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/* Is there a standard that would define this? */
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#include "isa.h"
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#define GENERIC_MCA_VENDOR ISAPNP_VENDOR ( 'M', 'C', 'A' )
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/*
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* A physical MCA device
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*
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*/
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struct dev;
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struct mca_device {
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struct dev *dev;
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unsigned int slot;
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unsigned char pos[8];
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int already_tried;
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};
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#define MCA_ID(mca) ( ( (mca)->pos[1] << 8 ) + (mca)->pos[0] )
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/*
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* An individual MCA device identified by ID
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*
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*/
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struct mca_id {
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const char *name;
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int id;
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};
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/*
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* An MCA driver, with a device ID (struct mca_id) table.
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*
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*/
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struct mca_driver {
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const char *name;
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struct mca_id *ids;
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unsigned int id_count;
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};
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/*
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* Define an MCA driver
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*
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*/
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#define MCA_DRIVER( driver_name, mca_ids ) { \
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.name = driver_name, \
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.ids = mca_ids, \
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.id_count = sizeof ( mca_ids ) / sizeof ( mca_ids[0] ), \
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}
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/*
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* Functions in mca.c
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*
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*/
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extern struct mca_device * mca_device ( struct dev *dev );
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extern int find_mca_device ( struct mca_device *mca,
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struct mca_driver *driver );
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#endif
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