Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / drivers / bus / isa_ids.c

diff --git a/qemu/roms/ipxe/src/drivers/bus/isa_ids.c b/qemu/roms/ipxe/src/drivers/bus/isa_ids.c
new file mode 100644 (file)
index 0000000..e72b233
--- /dev/null
+++ b/qemu/roms/ipxe/src/drivers/bus/isa_ids.c
@@ -0,0 +1,26 @@
+#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;
+}