From 8d45c59708eeb47953c0d071e71dc4fd292c3be5 Mon Sep 17 00:00:00 2001 From: Luke Zhang Date: Mon, 25 Jan 2016 16:45:29 -0800 Subject: Fixed the problem of ADSP crash while Fuzzing BT During Fuzzing BT test, BT cannot recover after SSR was triggered due to command timed out. The reason is that during this test, the property of wc_transport.force_special_byte was not set, so SOC stayed in suspend mode. Change-Id: I41f9dae5ec4c771e078d09213b0d19f23ec9de1f CRs-fixed: 964802 --- libbt-vendor/src/bt_vendor_qcom.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/libbt-vendor/src/bt_vendor_qcom.c b/libbt-vendor/src/bt_vendor_qcom.c index 464defd..294c0c3 100644 --- a/libbt-vendor/src/bt_vendor_qcom.c +++ b/libbt-vendor/src/bt_vendor_qcom.c @@ -52,6 +52,7 @@ #define CMD_TIMEOUT 0x22 static void wait_for_patch_download(bool is_ant_req); +static bool is_debug_force_special_bytes(void); /****************************************************************************** ** Externs @@ -1087,13 +1088,19 @@ static void ssr_cleanup(int reason) { trig_ssr = 0xEE; ret = write (vnd_userial.fd, &trig_ssr, 1); ALOGI("Trig_ssr is being sent to BT socket, retval(%d) :errno: %s", ret, strerror(errno)); - return; + + if (is_debug_force_special_bytes()) { + //Then we should send special byte to crash SOC in WCNSS_Filter, so we do not + //need to power off UART here. + return; + } } + /*Close both ANT channel*/ op(BT_VND_OP_ANT_USERIAL_CLOSE, NULL); #endif #endif - /*Close both ANT channel*/ + /*Close both BT channel*/ op(BT_VND_OP_USERIAL_CLOSE, NULL); /*CTRL OFF twice to make sure hw * turns off*/ @@ -1144,6 +1151,22 @@ void wait_for_patch_download(bool is_ant_req) { } } +static bool is_debug_force_special_bytes() { + int ret = 0; + char value[PROPERTY_VALUE_MAX] = {'\0'}; + bool enabled = false; + + ret = property_get("wc_transport.force_special_byte", value, NULL); + + if (ret) { + enabled = (strcmp(value, "false") ==0) ? false : true; + ALOGV("%s: wc_transport.force_special_byte: %s, enabled: %d ", + __func__, value, enabled); + } + + return enabled; +} + // Entry point of DLib const bt_vendor_interface_t BLUETOOTH_VENDOR_LIB_INTERFACE = { sizeof(bt_vendor_interface_t), -- cgit v1.2.3