path: root/drivers/net/wireless/rtlwifi/btcoexist/halbtcoutsrc.c

/******************************************************************************
 *
 * Copyright(c) 2007 - 2013 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * The full GNU General Public License is included in this distribution in the
 * file called LICENSE.
 *
 * Contact Information:
 * wlanfae <wlanfae@realtek.com>
 * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
 * Hsinchu 300, Taiwan.
 *
 * Larry Finger <Larry.Finger@lwfinger.net>
 *
 ******************************************************************************/

#include "halbt_precomp.h"

/***********************************************
 *		Global variables
 ***********************************************/

struct btc_coexist gl_bt_coexist;

u32 btc_dbg_type[BTC_MSG_MAX];
static u8 btc_dbg_buf[100];

/***************************************************
 *		Debug related function
 ***************************************************/
static bool halbtc_is_bt_coexist_available(struct btc_coexist *btcoexist)
{
	if (!btcoexist->binded || NULL == btcoexist->adapter)
		return false;

	return true;
}

static bool halbtc_is_wifi_busy(struct rtl_priv *rtlpriv)
{
	if (rtlpriv->link_info.busytraffic)
		return true;
	else
		return false;
}

static void halbtc_dbg_init(void)
{
	u8 i;

	for (i = 0; i < BTC_MSG_MAX; i++)
		btc_dbg_type[i] = 0;

	btc_dbg_type[BTC_MSG_INTERFACE] =
/*			INTF_INIT				| */
/*			INTF_NOTIFY				| */
			0;

	btc_dbg_type[BTC_MSG_ALGORITHM] =
/*			ALGO_BT_RSSI_STATE			| */
/*			ALGO_WIFI_RSSI_STATE			| */
/*			ALGO_BT_MONITOR				| */
/*			ALGO_TRACE				| */
/*			ALGO_TRACE_FW				| */
/*			ALGO_TRACE_FW_DETAIL			| */
/*			ALGO_TRACE_FW_EXEC			| */
/*			ALGO_TRACE_SW				| */
/*			ALGO_TRACE_SW_DETAIL			| */
/*			ALGO_TRACE_SW_EXEC			| */
			0;
}

static bool halbtc_is_bt40(struct rtl_priv *adapter)
{
	struct rtl_priv *rtlpriv = adapter;
	struct rtl_phy *rtlphy = &(rtlpriv->phy);
	bool is_ht40 = true;
	enum ht_channel_width bw = rtlphy->current_chan_bw;

	if (bw == HT_CHANNEL_WIDTH_20)
		is_ht40 = false;
	else if (bw == HT_CHANNEL_WIDTH_20_40)
		is_ht40 = true;

	return is_ht40;
}

static bool halbtc_legacy(struct rtl_priv *adapter)
{
	struct rtl_priv *rtlpriv = adapter;
	struct rtl_mac *mac = rtl_mac(rtlpriv);

	bool is_legacy = false;

	if ((mac->mode == WIRELESS_MODE_B) || (mac->mode == WIRELESS_MODE_B))
		is_legacy = true;

	return is_legacy;
}

bool halbtc_is_wifi_uplink(struct rtl_priv *adapter)
{
	struct rtl_priv *rtlpriv = adapter;

	if (rtlpriv->link_info.tx_busy_traffic)
		return true;
	else
		return false;
}

static u32 halbtc_get_wifi_bw(struct btc_coexist *btcoexist)
{
	struct rtl_priv *rtlpriv =
		(struct rtl_priv *)btcoexist->adapter;
	u32 wifi_bw = BTC_WIFI_BW_HT20;

	if (halbtc_is_bt40(rtlpriv)) {
		wifi_bw = BTC_WIFI_BW_HT40;
	} else {
		if (halbtc_legacy(rtlpriv))
			wifi_bw = BTC_WIFI_BW_LEGACY;
		else
			wifi_bw = BTC_WIFI_BW_HT20;
	}
	return wifi_bw;
}

static u8 halbtc_get_wifi_central_chnl(struct btc_coexist *btcoexist)
{
	struct rtl_priv *rtlpriv = btcoexist->adapter;
	struct rtl_phy	*rtlphy = &(rtlpriv->phy);
	u8 chnl = 1;

	if (rtlphy->current_channel != 0)
		chnl = rtlphy->current_channel;
	BTC_PRINT(BTC_MSG_ALGORITHM, ALGO_TRACE,
		  "static halbtc_get_wifi_central_chnl:%d\n", chnl);
	return chnl;
}

static void halbtc_leave_lps(struct btc_coexist *btcoexist)
{
	struct rtl_priv *rtlpriv;
	struct rtl_ps_ctl *ppsc;
	bool ap_enable = false;

	rtlpriv = btcoexist->adapter;
	ppsc = rtl_psc(rtlpriv);

	btcoexist->btc_get(btcoexist, BTC_GET_BL_WIFI_AP_MODE_ENABLE,
			   &ap_enable);

	if (ap_enable) {
		pr_info("halbtc_leave_lps()<--dont leave lps under AP mode\n");
		return;
	}

	btcoexist->bt_info.bt_ctrl_lps = true;
	btcoexist->bt_info.bt_lps_on = false;
}

static void halbtc_enter_lps(struct btc_coexist *btcoexist)
{
	struct rtl_priv