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<uses-permission android:name="android.permission.WAKE_LOCK" />

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int wpa_driver_nl80211_driver_cmd(void *priv, char *cmd, char *buf,
				  size_t buf_len )
{
	struct i802_bss *bss = priv;
	struct wpa_driver_nl80211_data *drv = bss->drv;
	struct ifreq ifr;
	android_wifi_priv_cmd priv_cmd;
	int ret = 0;
	if (bss->ifindex <= 0 && bss->wdev_id > 0) {
		/* DRIVER CMD received on the DEDICATED P2P Interface which doesn't
		 * have an NETDEVICE associated with it. So we have to re-route the
		 * command to the parent NETDEVICE
		 */
		struct wpa_supplicant *wpa_s = (struct wpa_supplicant *)(drv->ctx);
		wpa_printf(MSG_DEBUG, "Re-routing DRIVER cmd to parent iface");
		if (wpa_s && wpa_s->parent) {
			/* Update the nl80211 pointers corresponding to parent iface */
			bss = wpa_s->parent->drv_priv;
			drv = bss->drv;
			wpa_printf(MSG_DEBUG, "Re-routing command to iface: %s"
					      " cmd (%s)", bss->ifname, cmd);
		}
	}
	if (os_strcasecmp(cmd, "STOP") == 0) {
		linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 0);
		wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STOPPED");
	} else if (os_strcasecmp(cmd, "START") == 0) {
		linux_set_iface_flags(drv->global->ioctl_sock, bss->ifname, 1);
		wpa_msg(drv->ctx, MSG_INFO, WPA_EVENT_DRIVER_STATE "STARTED");
	} else if (os_strcasecmp(cmd, "MACADDR") == 0) {
		u8 macaddr[ETH_ALEN] = {};
		ret = linux_get_ifhwaddr(drv->global->ioctl_sock, bss->ifname, macaddr);
		if (!ret)
			ret = os_snprintf(buf, buf_len,
					  "Macaddr = " MACSTR "\n", MAC2STR(macaddr));
	} else { /* Use private command */
		os_memcpy(buf, cmd, strlen(cmd) + 1);
		memset(&ifr, 0, sizeof(ifr));
		memset(&priv_cmd, 0, sizeof(priv_cmd));
		os_strlcpy(ifr.ifr_name, bss->ifname, IFNAMSIZ);
#ifdef BCMDHD_64_BIT_IPC
		priv_cmd.bufaddr = (u64)(uintptr_t)buf;
#else
		priv_cmd.bufaddr = buf;
#endif
		priv_cmd.used_len = buf_len;
		priv_cmd.total_len = buf_len;
		ifr.ifr_data = &priv_cmd;
		if ((ret = ioctl(drv->global->ioctl_sock, SIOCDEVPRIVATE + 1, &ifr)) < 0) {
			wpa_printf(MSG_ERROR, "%s: failed to issue private command: %s", __func__, cmd);
			wpa_driver_send_hang_msg(drv);
		} else {
			drv_errors = 0;
			ret = 0;
			if ((os_strcasecmp(cmd, "LINKSPEED") == 0) ||
			    (os_strcasecmp(cmd, "RSSI") == 0) ||
			    (os_strcasecmp(cmd, "GETBAND") == 0) ||
			    (os_strncasecmp(cmd, "WLS_BATCHING", 12) == 0))
				ret = strlen(buf);
			wpa_driver_notify_country_change(drv->ctx, cmd);
			wpa_printf(MSG_DEBUG, "%s %s len = %d, %zu", __func__, buf, ret, strlen(buf));
		}
	}
	return ret;
}

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    /**
      * Sets the bluetooth coexistence mode.
      *
      * @param mode One of {@link #BLUETOOTH_COEXISTENCE_MODE_DISABLED},
      *            {@link #BLUETOOTH_COEXISTENCE_MODE_ENABLED}, or
      *            {@link #BLUETOOTH_COEXISTENCE_MODE_SENSE}.
      * @return Whether the mode was successfully set.
      */
    public boolean setBluetoothCoexistenceMode(int mode) {
        return doBooleanCommand("DRIVER BTCOEXMODE " + mode);
    }
    /**
     * Enable or disable Bluetooth coexistence scan mode. When this mode is on,
     * some of the low-level scan parameters used by the driver are changed to
     * reduce interference with A2DP streaming.
     *
     * @param isSet whether to enable or disable this mode
     * @return {@code true} if the command succeeded, {@code false} otherwise.
     */
    public boolean setBluetoothCoexistenceScanMode(boolean setCoexScanMode) {
        if (setCoexScanMode) {
            return doBooleanCommand("DRIVER BTCOEXSCAN-START");
        } else {
            return doBooleanCommand("DRIVER BTCOEXSCAN-STOP");
        }
    }