176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman#include <stdint.h> 276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman#include <stdio.h> 376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman#include <byteswap.h> 476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman#include <gpxe/isa_ids.h> 576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman 676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman/* 776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman * EISA and ISAPnP IDs are actually mildly human readable, though in a 876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman * somewhat brain-damaged way. 976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman * 1076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman */ 1176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartmanchar * isa_id_string ( unsigned int vendor, unsigned int product ) { 1276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman static char buf[7]; 1376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman int i; 1476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman 1576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman /* Vendor ID is a compressed ASCII string */ 1676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman vendor = bswap_16 ( vendor ); 1776d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman for ( i = 2 ; i >= 0 ; i-- ) { 1876d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman buf[i] = ( 'A' - 1 + ( vendor & 0x1f ) ); 1976d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman vendor >>= 5; 2076d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman } 2176d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman 2276d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman /* Product ID is a 4-digit hex string */ 2376d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman sprintf ( &buf[3], "%04x", bswap_16 ( product ) ); 2476d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman 2576d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman return buf; 2676d05dc695b06c4e987bb8078f78032441e1430cGreg Hartman} 27