porting getpir to freebios2

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1500 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

util/getpir/checkpir.c

@@ -0,0 +1,48 @@
+/* checkpir.c : This software is released under GPL
+   For Linuxbios use only
+   Aug 26 2001 , Nikolai Vladychevski, <niko@isl.net.mx>
+*/
+
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <device/pci.h>
+#include <pirq_routing.h>
+
+#define PIRQ_SIGNATURE  (('$' << 0) + ('P' << 8) + ('I' << 16) + ('R' << 24))
+#define PIRQ_VERS 0x0100
+
+struct irq_info se_arr[50];
+struct irq_routing_table *rt;
+
+int calc_checksum(struct irq_routing_table *rt)
+{
+	long sum = 0, i;
+	uint8_t *addr, sum2 = 0;
+
+	addr = (uint8_t *) rt;
+	for (i = 0; i < rt->size; i++)
+		sum2 += addr[i];
+	return (sum2);
+}
+
+main()
+{
+	uint8_t sum, newsum;
+
+	rt = (struct irq_routing_table *) &intel_irq_routing_table;
+	sum = calc_checksum(rt);
+
+	printf("Validating checksum, file: irq_tables.c that was in ./ at compile time...\n");
+	printf("(no other tests are done)\n");
+
+	if (!sum) {
+		printf("Checksum for IRQ Routing table is ok. You can use it in LinuxBios now\n");
+	} else {
+		newsum = rt->checksum - sum;
+		printf("BAD CHECKSUM for IRQ Routing table !!!!\n");
+		printf("If you want to make it valid, change the checksum to: %#x\n",
+		       newsum);
+	}
+}