blob: e72b233f31afe35b3bf4202e4b5d444f00b8f875 [file] [log] [blame]
#include <stdint.h>
#include <stdio.h>
#include <byteswap.h>
#include <ipxe/isa_ids.h>
/*
* EISA and ISAPnP IDs are actually mildly human readable, though in a
* somewhat brain-damaged way.
*
*/
char * isa_id_string ( unsigned int vendor, unsigned int product ) {
static char buf[7];
int i;
/* Vendor ID is a compressed ASCII string */
vendor = bswap_16 ( vendor );
for ( i = 2 ; i >= 0 ; i-- ) {
buf[i] = ( 'A' - 1 + ( vendor & 0x1f ) );
vendor >>= 5;
}
/* Product ID is a 4-digit hex string */
sprintf ( &buf[3], "%04x", bswap_16 ( product ) );
return buf;
}