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#ifndef ISA_IDS_H
#define ISA_IDS_H
/*
* This file defines IDs as used by ISAPnP and EISA devices. These
* IDs have the format:
*
* vendor byte 0 bit 7 must be zero
* bits 6-2 first vendor char in compressed ASCII
* bits 1-0 second vendor char in compressed ASCII (bits 4-3)
* byte 1 bits 7-5 second vendor char in compressed ASCII (bits 2-0)
* bits 4-0 third vendor char in compressed ASCII
* product byte 0 bits 7-4 first hex digit of product number
* bits 3-0 second hex digit of product number
* byte 1 bits 7-4 third hex digit of product number
* bits 3-0 hex digit of revision level
*
*/
#include "stdint.h"
#define ISA_BUS_TYPE 2
/*
* Construct a vendor ID from three ASCII characters
*
*/
#define ISA_VENDOR(a,b,c) (((((a)-'A'+1)&0x3f)<<2)|\
((((b)-'A'+1)&0x18)>>3)|((((b)-'A'+1)&7)<<13)|\
((((c)-'A'+1)&0x1f)<<8))
#define ISAPNP_VENDOR(a,b,c) ISA_VENDOR(a,b,c)
#define EISA_VENDOR(a,b,c) ISA_VENDOR(a,b,c)
#define GENERIC_ISAPNP_VENDOR ISAPNP_VENDOR('P','N','P')
/*
* Extract product ID and revision from combined product field
*
*/
#define ISA_PROD_ID_MASK ( 0xf0ff )
#define ISA_PROD_ID(product) ( (product) & ISA_PROD_ID_MASK )
#define ISA_PROD_REV(product) ( ( (product) & ~ISA_PROD_ID_MASK ) >> 8 )
/* Functions in isa_ids.c */
extern char * isa_id_string ( uint16_t vendor, uint16_t product );
#endif /* ISA_IDS_H */
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