hal: Adding wifi_set_dtim_config (DTIM config with IPv6 and IPv4 networks when the screen is off)

issue)
1. This issue happened due to bcn_li_dtim set to 9 after screen off.
2. Disconnected the network because STA missed RA by the large bcn_li_dtim in IPv6 only networks.

Conclusion of this issue)
Added the DTIM multiplier config code for setting the different dtim config between IPv4 and IPv6 network.

Bug: 170678227
Test: Verified with halutil command
Change-Id: I8625d2448e64ceaedeb42aa2aa18c98b724dd3e9

2 files changed, 43 insertions, 0 deletions

diff --git a/bcmdhd/wifi_hal/common.h b/bcmdhd/wifi_hal/common.h
index c7f86a2..e83f6be 100755
--- a/bcmdhd/wifi_hal/common.h
+++ b/bcmdhd/wifi_hal/common.h
@@ -175,6 +175,7 @@ typedef enum {
     WIFI_SUBCMD_SET_LATENCY_MODE,                        /* 0x101b */
     WIFI_SUBCMD_SET_MULTISTA_PRIMARY_CONNECTION,         /* 0x101c */
     WIFI_SUBCMD_SET_MULTISTA_USE_CASE,                   /* 0x101d */
+    WIFI_SUBCMD_SET_DTIM_CONFIG,                         /* 0x101e */
 
     GSCAN_SUBCMD_MAX,
 
@@ -442,6 +443,7 @@ wifi_error wifi_virtual_interface_delete(wifi_handle handle, const char* ifname)
 wifi_error wifi_set_coex_unsafe_channels(wifi_handle handle, u32 num_channels,
                                          wifi_coex_unsafe_channel channels[], u32 restrictions);
 wifi_error wifi_set_voip_mode(wifi_interface_handle handle, wifi_voip_mode mode);
+wifi_error wifi_set_dtim_config(wifi_interface_handle handle, u32 multiplier);
 void set_hautil_mode(bool halutil_mode);
 bool get_halutil_mode();
 
diff --git a/bcmdhd/wifi_hal/wifi_hal.cpp b/bcmdhd/wifi_hal/wifi_hal.cpp
index 54ed37e..5cf0fcc 100755
--- a/bcmdhd/wifi_hal/wifi_hal.cpp
+++ b/bcmdhd/wifi_hal/wifi_hal.cpp
@@ -108,6 +108,7 @@ typedef enum wifi_attr {
     ANDR_WIFI_ATTRIBUTE_THERMAL_MITIGATION         = 11,
     ANDR_WIFI_ATTRIBUTE_THERMAL_COMPLETION_WINDOW  = 12,
     ANDR_WIFI_ATTRIBUTE_VOIP_MODE                  = 13,
+    ANDR_WIFI_ATTRIBUTE_DTIM_MULTIPLIER            = 14,
      // Add more attribute here
     ANDR_WIFI_ATTRIBUTE_MAX
 } wifi_attr_t;
@@ -313,6 +314,7 @@ wifi_error init_wifi_vendor_hal_func_table(wifi_hal_fn *fn)
     fn->wifi_multi_sta_set_primary_connection = wifi_multi_sta_set_primary_connection;
     fn->wifi_multi_sta_set_use_case = wifi_multi_sta_set_use_case;
     fn->wifi_set_voip_mode = wifi_set_voip_mode;
+    fn->wifi_set_dtim_config = wifi_set_dtim_config;
 
     return WIFI_SUCCESS;
 }
@@ -2667,3 +2669,42 @@ wifi_error wifi_set_voip_mode(wifi_interface_handle handle, wifi_voip_mode mode)
     SetVoipModeCommand command(handle, mode);
     return (wifi_error) command.requestResponse();
 }
+
+/////////////////////////////////////////////////////////////////////////////////////////////////
+class SetDtimConfigCommand : public WifiCommand {
+
+private:
+    uint32_t multiplier;
+public:
+    SetDtimConfigCommand(wifi_interface_handle handle, u32 dtim_multiplier)
+        : WifiCommand("SetDtimConfigCommand", handle, 0) {
+        multiplier = dtim_multiplier;
+    }
+    virtual int create() {
+        int ret;
+
+        ret = mMsg.create(GOOGLE_OUI, WIFI_SUBCMD_SET_DTIM_CONFIG);
+        if (ret < 0) {
+            ALOGE("Can't create message to send to driver - %d", ret);
+            return ret;
+        }
+
+        nlattr *data = mMsg.attr_start(NL80211_ATTR_VENDOR_DATA);
+        ret = mMsg.put_u32(ANDR_WIFI_ATTRIBUTE_DTIM_MULTIPLIER, multiplier);
+        if (ret < 0) {
+             ALOGE("Failed to set dtim mutiplier %d\n", multiplier);
+             return ret;
+        }
+
+        ALOGI("Successfully configured dtim multiplier %d\n", multiplier);
+        mMsg.attr_end(data);
+        return WIFI_SUCCESS;
+    }
+};
+
+wifi_error wifi_set_dtim_config(wifi_interface_handle handle, u32 multiplier)
+{
+    ALOGD("Setting DTIM config , halHandle = %p Multiplier = %d\n", handle, multiplier);
+    SetDtimConfigCommand command(handle, multiplier);
+    return (wifi_error) command.requestResponse();
+}