wifi(implementation): API to flush HAL ringbuffer to files

Wlan log does not include correct timestamp while
taking bug report. Flush HAL ringbuffe to files
directly when issue happen.

Bug: 118854557
Test: Builds and wifi works
Change-Id: Ic9a6b7470f943f1498428e8b0d40b117b2ff04e6

1 files changed, 17 insertions, 2 deletions

diff --git a/wifi/1.3/default/wifi_chip.cpp b/wifi/1.3/default/wifi_chip.cpp
index dd6bd7c02..1f1aa9522 100644
--- a/wifi/1.3/default/wifi_chip.cpp
+++ b/wifi/1.3/default/wifi_chip.cpp
@@ -37,8 +37,8 @@ using android::hardware::wifi::V1_0::IfaceType;
 using android::hardware::wifi::V1_0::IWifiChip;
 
 constexpr char kCpioMagic[] = "070701";
-constexpr size_t kMaxBufferSizeBytes = 1024 * 1024;
-constexpr uint32_t kMaxRingBufferFileAgeSeconds = 60 * 60;
+constexpr size_t kMaxBufferSizeBytes = 1024 * 1024 * 3;
+constexpr uint32_t kMaxRingBufferFileAgeSeconds = 60 * 60 * 10;
 constexpr uint32_t kMaxRingBufferFileNum = 20;
 constexpr char kTombstoneFolderPath[] = "/data/vendor/tombstones/wifi/";
 
@@ -515,6 +515,13 @@ Return<void> WifiChip::forceDumpToDebugRingBuffer(
                            hidl_status_cb, ring_name);
 }
 
+Return<void> WifiChip::flushRingBufferToFile(
+    flushRingBufferToFile_cb hidl_status_cb) {
+    return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
+                           &WifiChip::flushRingBufferToFileInternal,
+                           hidl_status_cb);
+}
+
 Return<void> WifiChip::stopLoggingToDebugRingBuffer(
     stopLoggingToDebugRingBuffer_cb hidl_status_cb) {
     return validateAndCall(this, WifiStatusCode::ERROR_WIFI_CHIP_INVALID,
@@ -1000,6 +1007,14 @@ WifiStatus WifiChip::forceDumpToDebugRingBufferInternal(
     return createWifiStatusFromLegacyError(legacy_status);
 }
 
+WifiStatus WifiChip::flushRingBufferToFileInternal() {
+    if (!writeRingbufferFilesInternal()) {
+        LOG(ERROR) << "Error writing files to flash";
+        return createWifiStatus(WifiStatusCode::ERROR_UNKNOWN);
+    }
+    return createWifiStatus(WifiStatusCode::SUCCESS);
+}
+
 WifiStatus WifiChip::stopLoggingToDebugRingBufferInternal() {
     legacy_hal::wifi_error legacy_status =
         legacy_hal_.lock()->deregisterRingBufferCallbackHandler(