commit d2f01e63fefc0abe3ddad14ddd29fbb00981ee57
author Stefan Berger <stefanb@linux.vnet.ibm.com> Tue Jun 09 19:56:28 2015 -0400
committer Kevin O'Connor <kevin@koconnor.net> Thu Jun 11 18:36:17 2015 -0400
tree c1ede28245e9d2483e04244bb9426ad5bf297397
parent b972a962f73cd6511bcddd84f8da244b3867406b

tpm: Introduce a #define for command tag

Introduce a #define for the TPM command tag 0x00c1.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>

src/tcgbios.c

diff --git a/src/tcgbios.c b/src/tcgbios.c
index 4bf6fe9..94d54d8 100644
--- a/src/tcgbios.c
+++ b/src/tcgbios.c
@@ -333,7 +333,7 @@
     memset(ibuffer, 0x0, sizeof(ibuffer));
     memset(obuffer, 0x0, sizeof(obuffer));
 
-    trqh->tag     = cpu_to_be16(0xc1);
+    trqh->tag     = cpu_to_be16(TPM_TAG_RQU_CMD);
     trqh->totlen  = cpu_to_be32(TPM_REQ_HEADER_SIZE + append_size +
                                 otherdata_size);
     trqh->ordinal = cpu_to_be32(ordinal);

src/tcgbios.h

diff --git a/src/tcgbios.h b/src/tcgbios.h
index 8b107bb..df89579 100644
--- a/src/tcgbios.h
+++ b/src/tcgbios.h
@@ -91,6 +91,8 @@
 #define TPM_INVALID_POSTINIT             0x26
 #define TPM_BAD_LOCALITY                 0x3d
 
+/* TPM command tags */
+#define TPM_TAG_RQU_CMD                  0x00c1
 
 /* interrupt identifiers (al register) */
 enum irq_ids {