48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
#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 */
|