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27 lines
581 B
C
27 lines
581 B
C
#include "stdint.h"
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#include "byteswap.h"
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#include "console.h"
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#include "isa_ids.h"
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/*
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* EISA and ISAPnP IDs are actually mildly human readable, though in a
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* somewhat brain-damaged way.
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*
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*/
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char * isa_id_string ( uint16_t vendor, uint16_t product ) {
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static unsigned char buf[7];
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int i;
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/* Vendor ID is a compressed ASCII string */
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vendor = bswap_16 ( vendor );
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for ( i = 2 ; i >= 0 ; i-- ) {
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buf[i] = ( 'A' - 1 + ( vendor & 0x1f ) );
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vendor >>= 5;
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}
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/* Product ID is a 4-digit hex string */
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sprintf ( &buf[3], "%hx", bswap_16 ( product ) );
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return buf;
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}
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