X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/rsbs2/blobdiff_plain/77ad1a84f7fa19a455a228d7b9679291e94550ea..20ef0f397c40ec362d25b6349b3e3383e80fc2af:/bmc/bmc.c

diff --git a/bmc/bmc.c b/bmc/bmc.c
index 4a7f02f..4db28a6 100644
--- a/bmc/bmc.c
+++ b/bmc/bmc.c
@@ -6,15 +6,40 @@
 #include "i2c.h"
 #include "bmc.h"
 
-void decode_bmc_cmd(unsigned char *buf, int len)
+uint8_t ipmb_csum(unsigned char *buf, int len)
 {
+	uint8_t csum = 0x00;
 	int i;
 
 	for(i = 0; i < len; i++) {
-		printf("0x%02x ", buf[i]);
+		csum += buf[i];
 	}
 
+	return -csum;
+}
+
+void decode_bmc_cmd(unsigned char *buf, int len)
+{
+	int i;
+
+	printf(">>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n");
+	printf("Connection Header:\n");
+	printf("\trs Slave Addr.: 0x%02x\n", buf[0]);
+	printf("\tnetFn: 0x%02x, LUN: 0x%02x\n", (buf[1]>>2)&0x3f, (buf[1] & 0x03));
+	printf("\tChecksum: 0x%02x (%s)\n", buf[2],
+		(buf[2] == ipmb_csum(buf, 2)) ? "OK" : "Wrong");
+	printf("Data:\n");
+	printf("\trq Slave Addr.: 0x%02x\n", buf[3]);
+	printf("\trqSeq: 0x%02x, rqLUN: 0x%02x\n", (buf[4]>>2)&0x3f, (buf[4] & 0x03));
+	printf("\tcmd: 0x%02x\n", buf[5]);
+	printf("\tData: ");
+	for(i = 6; i < (len - 1); i++) {
+		printf("0x%02x ", buf[i]);
+	}
 	printf("\n");
+	printf("\tChecksum: 0x%02x (%s)\n", buf[len-1],
+		(buf[len-1] == ipmb_csum(buf+3, len-4)) ? "OK" : "Wrong");
+	printf("<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n");
 }
 
 int main(void)