From 33146d4bc84df1c1e493ef165da7a9ae77dfd3ae Mon Sep 17 00:00:00 2001
From: Sungjun Park <sjpark@codeaurora.org>
Date: Wed, 10 Jun 2015 15:55:37 -0700
Subject: Bluetooth: Add system permission for wcnss_filter

Once build is complied as user-debug, system permission will
be given to wcnss_filter service to support kernel panic.

Change-Id: I2a92bde829a60bbf2dc7babfced89ce8addeb7e8
---
 libbt-vendor/Android.mk           |  4 ++++
 libbt-vendor/src/bt_vendor_qcom.c | 17 ++++++++++++-----
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/libbt-vendor/Android.mk b/libbt-vendor/Android.mk
index 3414909..c959b9f 100644
--- a/libbt-vendor/Android.mk
+++ b/libbt-vendor/Android.mk
@@ -39,6 +39,10 @@ ifeq ($(BOARD_HAS_QCA_BT_ROME),true)
 LOCAL_CFLAGS += -DBT_SOC_TYPE_ROME
 endif
 
+ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
+LOCAL_CFLAGS += -DPANIC_ON_SOC_CRASH
+endif
+
 LOCAL_C_INCLUDES += \
         $(LOCAL_PATH)/include \
         $(BDROID_DIR)/hci/include \
diff --git a/libbt-vendor/src/bt_vendor_qcom.c b/libbt-vendor/src/bt_vendor_qcom.c
index e52312d..b8b66ae 100644
--- a/libbt-vendor/src/bt_vendor_qcom.c
+++ b/libbt-vendor/src/bt_vendor_qcom.c
@@ -42,6 +42,12 @@
 
 #define WAIT_TIMEOUT 200000
 
+#ifdef PANIC_ON_SOC_CRASH
+#define BT_VND_FILTER_START "wc_transport.start_root"
+#else
+#define BT_VND_FILTER_START "wc_transport.start_hci"
+#endif
+
 /******************************************************************************
 **  Externs
 ******************************************************************************/
@@ -258,14 +264,14 @@ void stop_hci_filter() {
        char value[PROPERTY_VALUE_MAX] = {'\0'};
        ALOGV("%s: Entry ", __func__);
 
-       property_get("wc_transport.start_hci", value, "false");
+       property_get(BT_VND_FILTER_START, value, "false");
 
        if (strcmp(value, "false") == 0) {
            ALOGI("%s: hci_filter has been stopped already", __func__);
 //           return;
        }
 
-       property_set("wc_transport.start_hci", "false");
+       property_set(BT_VND_FILTER_START, "false");
        property_set("wc_transport.hci_filter_status", "0");
        ALOGV("%s: Exit ", __func__);
 }
@@ -275,8 +281,7 @@ void start_hci_filter() {
        int i, init_success = 0;
        char value[PROPERTY_VALUE_MAX] = {'\0'};
 
-
-       property_get("wc_transport.start_hci", value, false);
+       property_get(BT_VND_FILTER_START, value, false);
 
        if (strcmp(value, "true") == 0) {
            ALOGI("%s: hci_filter has been started already", __func__);
@@ -284,8 +289,10 @@ void start_hci_filter() {
        }
 
        property_set("wc_transport.hci_filter_status", "0");
+       property_set(BT_VND_FILTER_START, "true");
+
+       ALOGV("%s: %s set to true ", __func__, BT_VND_FILTER_START );
 
-       property_set("wc_transport.start_hci", "true");
        //sched_yield();
        for(i=0; i<45; i++) {
           property_get("wc_transport.hci_filter_status", value, "0");
-- 
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