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-rw-r--r--com32/gpllib/vpd/vpd.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/com32/gpllib/vpd/vpd.c b/com32/gpllib/vpd/vpd.c
new file mode 100644
index 00000000..ff04b8bf
--- /dev/null
+++ b/com32/gpllib/vpd/vpd.c
@@ -0,0 +1,103 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2006 Erwan Velu - All Rights Reserved
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall
+ * be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * -----------------------------------------------------------------------
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include "vpd/vpd.h"
+
+int vpd_checksum(char *buf, int len)
+{
+ uint8_t sum=0;
+ int a;
+
+ for(a=0; a<len; a++)
+ sum+=buf[a];
+ return (sum==0);
+}
+
+int vpd_decode(s_vpd *vpd) {
+ uint8_t buf[16];
+ char *p,*q;
+
+ /* Cleaning structures */
+ memset(&vpd->base_address,0,sizeof (vpd->base_address));
+ memset(&vpd->bios_build_id,0,sizeof (vpd->bios_build_id));
+ memset(&vpd->box_serial_number,0,sizeof (vpd->box_serial_number));
+ memset(&vpd->motherboard_serial_number,0,sizeof (vpd->motherboard_serial_number));
+ memset(&vpd->machine_type_model,0,sizeof (vpd->machine_type_model));
+ memset(&vpd->bios_release_date,0,sizeof (vpd->bios_release_date));
+ memset(&vpd->default_flash_filename,0,sizeof (vpd->default_flash_filename));
+ memset(&vpd->bios_version,0,sizeof (vpd->bios_version));
+
+ /* Until we found elements in the vpdtable, we consider them as not filled */
+ vpd->filled=false;
+
+ p=(char *)0xF0000; /* The start address to look at the dmi table */
+ for (q = p; q < p + 0x10000; q +=4) {
+ memcpy(buf, q, 5);
+ if(memcmp(buf, "\252\125VPD", 5)==0) {
+ snprintf(&vpd->base_address,5,"%X",q);
+ if (q[5] < 0x30)
+ return -ENOVPDTABLE;
+
+ vpd->filled=true;
+ /* XSeries have longer records, exact length seems to vary. */
+ if (!(q[5] >= 0x45 && vpd_checksum(q, q[5]))
+ /* Some Netvista seem to work with this. */
+ && !(vpd_checksum(q, 0x30))
+ /* The Thinkpad/Thinkcentre checksum does *not* include the first 13 bytes. */
+ && !(vpd_checksum(q + 0x0D, 0x30 - 0x0D)))
+ {
+ /* A few systems have a bad checksum (xSeries 325, 330, 335
+ and 345 with early BIOS) but the record is otherwise
+ valid. */
+ printf("VPD: Bad checksum!\n");
+ }
+
+ strncpy(vpd->bios_build_id,q+0x0D, 9);
+ strncpy(vpd->box_serial_number,q+0x16, 7);
+ strncpy(vpd->motherboard_serial_number,q+0x1D, 11);
+ strncpy(vpd->machine_type_model,q+0x28, 7);
+
+ if (q[5] < 0x44)
+ return VPD_TABLE_PRESENT;
+
+ strncpy(vpd->bios_release_date,q+0x30, 8);
+ strncpy(vpd->default_flash_filename,q+0x38, 12);
+
+ if (q[5] >= 0x46 && q[0x44] != 0x00) {
+ strncpy(vpd->bios_version,q+0x44, 255);
+ }
+
+ return VPD_TABLE_PRESENT;
+ }
+ }
+ return -ENOVPDTABLE;
+}
+
+