From: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Date: Mon, 21 Nov 2011 16:43:05 +0000 (+0100)
Subject: Tool to compute LIN ID parity table.
X-Git-Url: http://rtime.felk.cvut.cz/gitweb/linux-lin.git/commitdiff_plain/a45b010031bbc9720a19a75e9f4d042489fcbc5f

Tool to compute LIN ID parity table.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
---

diff --git a/misc/lin-parity/lin-id-parity.c b/misc/lin-parity/lin-id-parity.c
new file mode 100644
index 0000000..8c02cba
--- /dev/null
+++ b/misc/lin-parity/lin-id-parity.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main(void)
+{
+	unsigned int x, p0, p1;
+	for (x = 0; x <= 0x3f; x++) {
+		p0 = (x ^ (x >> 1) ^ (x >> 2) ^ (x >> 4)) & 0x1;
+		p1 = ~(((x >> 1) ^ (x >> 3) ^ (x >> 4) ^ (x >> 5))) & 0x1;
+		printf("%s0x%02x%s", x & 0x7? "": "\n\t",
+			((p1 & 1) << 7) | ((p0 & 0x1) << 6),
+			x!=0x3f? ",": "\n");
+	}
+}