commit f02ad01b8c93017f90e52176941b0dbaf5d33a15
author Katya Nigam <knigam@qti.qualcomm.com> Mon May 05 16:12:49 2014 +0530
committer Anjanee Devi Kapparapu <akappa@codeaurora.org> Tue May 13 15:59:21 2014 +0530
tree 62ef7aef6a0d8df26f466588f68b402d4b8eb97d
parent 02d9f6c55573dffd17444acc1b8007745cb22527

wlan: Recovery from device error.

A new variable DeviceErrorReason is added in
WDI context to know the reason for device error.
It stores return address of the calling function.
Also FIQ is added in some cases as a recover to
WDI_DetectedDeviceError.

Change-Id: Ifbf8e9e6c7dd9e4b38810f415fa8848e3a83c3d2
CRs-Fixed: 655373

CORE/WDI/CP/inc/wlan_qct_wdi_i.h

diff --git a/CORE/WDI/CP/inc/wlan_qct_wdi_i.h b/CORE/WDI/CP/inc/wlan_qct_wdi_i.h
index a40ec5e..316165c 100644
--- a/CORE/WDI/CP/inc/wlan_qct_wdi_i.h
+++ b/CORE/WDI/CP/inc/wlan_qct_wdi_i.h
@@ -1161,6 +1161,9 @@
 
   /*timestamp when we get response timer event*/
   wpt_uint64                  uArchTimeStampRspTmrExp;
+
+  /* reason for WDI_DetectedDeviceError */
+  void *                        DeviceErrorReason;
 }WDI_ControlBlockType; 
 
 

CORE/WDI/CP/src/wlan_qct_wdi.c

diff --git a/CORE/WDI/CP/src/wlan_qct_wdi.c b/CORE/WDI/CP/src/wlan_qct_wdi.c
index 9921e5c..0efc00b 100644
--- a/CORE/WDI/CP/src/wlan_qct_wdi.c
+++ b/CORE/WDI/CP/src/wlan_qct_wdi.c
@@ -15433,6 +15433,7 @@
     wdiStartRspCb( &wdiRspParams, pWDICtx->pRspCBUserData);
 
     WDI_DetectedDeviceError(pWDICtx, wdiRspParams.wdiStatus);
+    wpalWlanReload();
 
     /*Although the response is an error - it was processed by our function
     so as far as the caller is concerned this is a succesful reponse processing*/
@@ -15567,6 +15568,7 @@
                halMacStopRspMsg.stopRspParams.status);
 
     WDI_DetectedDeviceError( pWDICtx, WDI_ERR_BASIC_OP_FAILURE);
+    wpalWlanReload();
 
     wpalMutexRelease(&pWDICtx->wptMutex);
     return WDI_STATUS_E_FAILURE;
@@ -21329,6 +21331,8 @@
     WPAL_TRACE(eWLAN_MODULE_DAL_CTRL, eWLAN_PAL_TRACE_LEVEL_ERROR,
               "Invalid packet received from HAL - catastrophic failure");
     WDI_DetectedDeviceError( pWDICtx, WDI_ERR_INVALID_RSP_FMT);
+    wpalWlanReload();
+
     return;
   }
 
@@ -21722,6 +21726,8 @@
             "Device Error detected code: %d - transitioning to stopped state",
             usErrorCode);
 
+  pWDICtx->DeviceErrorReason = VOS_RETURN_ADDRESS;
+
   wpalMutexAcquire(&pWDICtx->wptMutex);
 
   WDI_STATableStop(pWDICtx);