1 files changed, 109 insertions, 0 deletions
diff --git a/mtk/wifi_hal/link_layer_stats.cpp b/mtk/wifi_hal/link_layer_stats.cpp
new file mode 100644
index 0000000..192ba92
--- /dev/null
+++ b/mtk/wifi_hal/link_layer_stats.cpp
@@ -0,0 +1,109 @@
+
+#include <stdint.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/family.h>
+#include <netlink/genl/ctrl.h>
+#include <linux/rtnetlink.h>
+#include <netpacket/packet.h>
+#include <linux/filter.h>
+#include <linux/errqueue.h>
+
+#include <linux/pkt_sched.h>
+#include <netlink/object-api.h>
+#include <netlink/netlink.h>
+#include <netlink/socket.h>
+#include <netlink/handlers.h>
+
+#include "sync.h"
+
+#define LOG_TAG  "WifiHAL"
+
+#include <utils/Log.h>
+
+#include "wifi_hal.h"
+#include "common.h"
+#include "cpp_bindings.h"
+
+
+typedef enum {
+    LSTATS_SUBCMD_GET_INFO = ANDROID_NL80211_SUBCMD_LSTATS_RANGE_START,
+} LSTATS_SUB_COMMAND;
+
+typedef enum {
+    LSTATS_ATTRIBUTE_STATS = 2,
+} LSTATS_ATTRIBUTE;
+
+///////////////////////////////////////////////////////////////////////////////////
+class GetLinkStatsCommand : public WifiCommand
+{
+    wifi_stats_result_handler mHandler;
+public:
+    GetLinkStatsCommand(wifi_interface_handle iface, wifi_stats_result_handler handler)
+        : WifiCommand(iface, 0), mHandler(handler)
+    { }
+
+    virtual int create() {
+        ALOGD("[WIFI HAL]Creating message to get link statistics; iface = %d", mIfaceInfo->id);
+
+        int ret = mMsg.create(GOOGLE_OUI, LSTATS_SUBCMD_GET_INFO);
+        if (ret < 0) {
+            ALOGE("Failed to create %x - %d", LSTATS_SUBCMD_GET_INFO, ret);
+            return ret;
+        }
+
+        return ret;
+    }
+
+protected:
+    virtual int handleResponse(WifiEvent& reply) {
+        ALOGD("[WIFI HAL]In GetLinkStatsCommand::handleResponse");
+
+        if (reply.get_cmd() != NL80211_CMD_VENDOR) {
+            ALOGE("Ignoring reply with cmd = %d", reply.get_cmd());
+            return NL_SKIP;
+        }
+
+        int id = reply.get_vendor_id();
+        int subcmd = reply.get_vendor_subcmd();
+
+        // ALOGI("Id = %0x, subcmd = %d", id, subcmd);
+
+        struct nlattr *vendor_data = (struct nlattr *)reply.get_vendor_data();
+        int len = reply.get_vendor_data_len();
+        wifi_radio_stat *data;
+
+        if(vendor_data->nla_type == LSTATS_ATTRIBUTE_STATS)
+            data = (wifi_radio_stat *)nla_data(vendor_data);
+        else
+            return NL_SKIP;
+        int num_chan = data->num_channels;
+        if (num_chan > 32) {
+           ALOGE("Incorrect number of channels = %d", num_chan);
+           return NL_SKIP;
+        }
+
+/*
+        (*mHandler.on_link_stats_results)(id,
+            (wifi_iface_stat *)((char *)&(data)->channels
+            + num_chan*sizeof(wifi_channel_stat)),
+            1, data);
+*/
+
+        return NL_OK;
+    }
+};
+
+wifi_error wifi_get_link_stats(wifi_request_id id,
+        wifi_interface_handle iface, wifi_stats_result_handler handler)
+{
+#if 0
+    GetLinkStatsCommand command(iface, handler);
+    return (wifi_error) command.requestResponse();
+#else
+    ALOGD("[WIFI HAL]don't support wifi_get_link_stats");
+    return WIFI_ERROR_NOT_SUPPORTED;
+#endif
+}
+