From: Simon Glass <sjg@chromium.org>
Date: Sat, 6 Feb 2021 21:23:34 +0000 (-0700)
Subject: tpm: Add debugging of request in tpm_sendrecv_command()
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=1a39ab87b7684824de83985726a2bfe535223ef1;p=u-boot.git

tpm: Add debugging of request in tpm_sendrecv_command()

The response is shown but not the request. Update the code to show both
if debugging is enabled.

Use a 'uint' type for size so it matches the register-word size on both
32- and 64-bit machines.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/lib/tpm-common.c b/lib/tpm-common.c
index e4af87f76a..4277846fdd 100644
--- a/lib/tpm-common.c
+++ b/lib/tpm-common.c
@@ -166,6 +166,7 @@ u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
 	u8 response_buffer[COMMAND_BUFFER_SIZE];
 	size_t response_length;
 	int i;
+	uint size;
 
 	if (response) {
 		response_length = *size_ptr;
@@ -174,8 +175,13 @@ u32 tpm_sendrecv_command(struct udevice *dev, const void *command,
 		response_length = sizeof(response_buffer);
 	}
 
-	err = tpm_xfer(dev, command, tpm_command_size(command),
-		       response, &response_length);
+	size = tpm_command_size(command);
+	log_debug("TPM request [size:%d]: ", size);
+	for (i = 0; i < size; i++)
+		log_debug("%02x ", ((u8 *)command)[i]);
+	log_debug("\n");
+
+	err = tpm_xfer(dev, command, size, response, &response_length);
 
 	if (err < 0)
 		return err;