linux_kernel/drivers/net/wireless/rtlwifi/btcoexist/rtl_btc.c

/******************************************************************************
 *
 * Copyright(c) 2009-2013  Realtek Corporation.
 *
 * 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 "../wifi.h"
#include <linux/vmalloc.h>
#include <linux/module.h>

#include "rtl_btc.h"
#include "halbt_precomp.h"

static struct rtl_btc_ops rtl_btc_operation = {
	.btc_init_variables = rtl_btc_init_variables,
	.btc_init_hal_vars = rtl_btc_init_hal_vars,
	.btc_init_hw_config = rtl_btc_init_hw_config,
	.btc_ips_notify = rtl_btc_ips_notify,
	.btc_lps_notify = rtl_btc_lps_notify,
	.btc_scan_notify = rtl_btc_scan_notify,
	.btc_connect_notify = rtl_btc_connect_notify,
	.btc_mediastatus_notify = rtl_btc_mediastatus_notify,
	.btc_periodical = rtl_btc_periodical,
	.btc_halt_notify = rtl_btc_halt_notify,
	.btc_btinfo_notify = rtl_btc_btinfo_notify,
	.btc_is_limited_dig = rtl_btc_is_limited_dig,
	.btc_is_disable_edca_turbo = rtl_btc_is_disable_edca_turbo,
	.btc_is_bt_disabled = rtl_btc_is_bt_disabled,
	.btc_special_packet_notify = rtl_btc_special_packet_notify,
};

void rtl_btc_init_variables(struct rtl_priv *rtlpriv)
{
	exhalbtc_initlize_variables(rtlpriv);
}

void rtl_btc_init_hal_vars(struct rtl_priv *rtlpriv)
{
	u8 ant_num;
	u8 bt_exist;
	u8 bt_type;

	ant_num = rtl_get_hwpg_ant_num(rtlpriv);
	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
		 "%s, antNum is %d\n", __func__, ant_num);

	bt_exist = rtl_get_hwpg_bt_exist(rtlpriv);
	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG,
		 "%s, bt_exist is %d\n", __func__, bt_exist);
	exhalbtc_set_bt_exist(bt_exist);

	bt_type = rtl_get_hwpg_bt_type(rtlpriv);
	RT_TRACE(rtlpriv, COMP_INIT, DBG_DMESG, "%s, bt_type is %d\n",
		 __func__, bt_type);
	exhalbtc_set_chip_type(bt_type);

	exhalbtc_set_ant_num(BT_COEX_ANT_TYPE_PG, ant_num);
}

void rtl_btc_init_hw_config(struct rtl_priv *rtlpriv)
{
	exhalbtc_init_hw_config(&gl_bt_coexist);
	exhalbtc_init_coex_dm(&gl_bt_coexist);
}

void rtl_btc_ips_notify(struct rtl_priv *rtlpriv, u8 type)
{
	exhalbtc_ips_notify(&gl_bt_coexist, type);
}

void rtl_btc_lps_notify(struct rtl_priv *rtlpriv, u8 type)
{
	exhalbtc_lps_notify(&gl_bt_coexist, type);
}

void rtl_btc_scan_notify(struct rtl_priv *rtlpriv, u8 scantype)
{
	exhalbtc_scan_notify(&gl_bt_coexist, scantype);
}

void rtl_btc_connect_notify(struct rtl_priv *rtlpriv, u8 action)
{
	exhalbtc_connect_notify(&gl_bt_coexist, action);
}

void rtl_btc_mediastatus_notify(struct rtl_priv *rtlpriv,
				enum rt_media_status mstatus)
{
	exhalbtc_mediastatus_notify(&gl_bt_coexist, mstatus);
}

void rtl_btc_periodical(struct rtl_priv *rtlpriv)
{
	/*rtl_bt_dm_monitor();*/
	exhalbtc_periodical(&gl_bt_coexist);
}

void rtl_btc_halt_notify(void)
{
	exhalbtc_halt_notify(&gl_bt_coexist);
}

void rtl_btc_btinfo_notify(struct rtl_priv *rtlpriv, u8 *tmp_buf, u8 length)
{
	exhalbtc_bt_info_notify(&gl_bt_coexist, tmp_buf, length);
}

bool rtl_btc_is_limited_dig(struct rtl_priv *rtlpriv)
{
	return gl_bt_coexist.bt_info.limited_dig;
}

bool rtl_btc_is_disable_edca_turbo(struct rtl_priv *rtlpriv)
{
	bool bt_change_edca = false;
	u32 cur_edca_val;
	u32 edca_bt_hs_uplink = 0x5ea42b, edca_bt_hs_downlink = 0x5ea42b;
	u32 edca_hs;
	u32 edca_addr = 0x504;

	cur_edca_val = rtl_read_dword(rtlpriv, edca_addr);
	if (halbtc_is_wifi_uplink(rtlpriv)) {
		if (cur_edca_val != edca_bt_hs_uplink) {
			edca_hs = edca_bt_hs_uplink;
			bt_change_edca = true;
		}
	} else {
		if (cur_edca_val != edca_bt_hs_downlink) {
			edca_hs = edca_bt_hs_downlink;
			bt_change_edca = true;
		}
	}

	if (bt_change_edca)
		rtl_write_dword(rtlpriv, edca_addr, edca_hs);

	return true;
}

bool rtl_btc_is_bt_disabled(struct rtl_priv *rtlpriv)
{
	/* It seems 'bt_disabled' is never be initialized or set. */
	if (gl_bt_coexist.bt_info.bt_disabled)
		return true;
	else
		return false;
}

void rtl_btc_special_packet_notify(struct rtl_priv *rtlpriv, u8 pkt_type)
{
	return exhalbtc_special_packet_notify(&gl_bt_coexist, pkt_type);
}

struct rtl_btc_ops *rtl_btc_get_ops_pointer(void)
{
	return &rtl_btc_operation;
}
EXPORT_SYMBOL(rtl_btc_get_ops_pointer);

u8 rtl_get_hwpg_ant_num(struct rtl_priv *rtlpriv)
{
	u8 num;

	if (rtlpriv->btcoexist.btc_info.ant_num == ANT_X2)
		num = 2;
	else
		num = 1;

	return num;
}

enum rt_media_status mgnt_link_status_query(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	enum rt_media_status    m_status = RT_MEDIA_DISCONNECT;

	u8 bibss = (mac->opmode == NL80211_IFTYPE_ADHOC) ? 1 : 0;

	if (bibss || rtlpriv->mac80211.link_state >= MAC80211_LINKED)
		m_status = RT_MEDIA_CONNECT;

	return m_status;
}

u8 rtl_get_hwpg_bt_exist(struct rtl_priv *rtlpriv)
{
	return rtlpriv->btcoexist.btc_info.btcoexist;
}

u8 rtl_get_hwpg_bt_type(struct rtl_priv *rtlpriv)
{
	return rtlpriv->btcoexist.btc_info.bt_type;
}

MODULE_AUTHOR("Page He	<page_he@realsil.com.cn>");
MODULE_AUTHOR("Realtek WlanFAE	<wlanfae@realtek.com>");
MODULE_AUTHOR("Larry Finger	<Larry.FInger@lwfinger.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Realtek 802.11n PCI wireless core");

static int __init rtl_btcoexist_module_init(void)
{
	return 0;
}

static void __exit rtl_btcoexist_module_exit(void)
{
	return;
}

module_init(rtl_btcoexist_module_init);
module_exit(rtl_btcoexist_module_exit);