From 915fd4bb87508f88960eb2d4e51ae1bdc454b5b0 Mon Sep 17 00:00:00 2001
From: "Jason M. Bills" <jason.m.bills@linux.intel.com>
Date: Mon, 3 Feb 2020 15:36:59 -0800
Subject: Add PECI_CC_TIMEOUT response

If the driver times-out on a PECI call and returns ETIMEDOUT,
return a new PECI_CC_TIMEOUT response to the caller.

Tested:
Ran a PECI command with a timeout and confirmed that it returns
PECI_CC_TIMEOUT.

Change-Id: I93e25948ef05d0e7f137500310a4dfa99ed8980c
Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>
---
 libpeci/peci.c | 5 +++++
 libpeci/peci.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/libpeci/peci.c b/libpeci/peci.c
index 58079bc..4929547 100644
--- a/libpeci/peci.c
+++ b/libpeci/peci.c
@@ -13,6 +13,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 */
+#include <errno.h>
 #include <fcntl.h>
 #include <peci.h>
 #include <string.h>
@@ -114,6 +115,10 @@ static EPECIStatus HW_peci_issue_cmd(unsigned int cmd, char* cmdPtr,
 
     if (ioctl(peci_fd, cmd, cmdPtr) != 0)
     {
+        if (errno == ETIMEDOUT)
+        {
+            return PECI_CC_TIMEOUT;
+        }
         return PECI_CC_DRIVER_ERR;
     }
 
diff --git a/libpeci/peci.h b/libpeci/peci.h
index 33b664d..53a8bba 100644
--- a/libpeci/peci.h
+++ b/libpeci/peci.h
@@ -45,6 +45,7 @@ typedef enum
     PECI_CC_DRIVER_ERR,
     PECI_CC_CPU_NOT_PRESENT,
     PECI_CC_MEM_ERR,
+    PECI_CC_TIMEOUT,
 } EPECIStatus;
 
 // PECI Timeout Options
-- 
cgit v1.2.3