path: root/drivers/net/wireless/rtlwifi/core.c

/******************************************************************************
 *
 * Copyright(c) 2009-2012  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.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 * 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 "core.h"
#include "cam.h"
#include "base.h"
#include "pci.h"
#include "ps.h"

#include <linux/export.h>

void rtl_fw_cb(const struct firmware *firmware, void *context)
{
	struct ieee80211_hw *hw = context;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	int err;

	RT_TRACE(rtlpriv, COMP_ERR, DBG_LOUD,
			 "Firmware callback routine entered!\n");
	complete(&rtlpriv->firmware_loading_complete);
	if (!firmware) {
		pr_err("Firmware %s not available\n", rtlpriv->cfg->fw_name);
		rtlpriv->max_fw_size = 0;
		return;
	}
	if (firmware->size > rtlpriv->max_fw_size) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 "Firmware is too big!\n");
		release_firmware(firmware);
		return;
	}
	memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
	rtlpriv->rtlhal.fwsize = firmware->size;
	release_firmware(firmware);

	err = ieee80211_register_hw(hw);
	if (err) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
			 "Can't register mac80211 hw\n");
		return;
	} else {
		rtlpriv->mac80211.mac80211_registered = 1;
	}
	set_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status);

	/*init rfkill */
	rtl_init_rfkill(hw);
}
EXPORT_SYMBOL(rtl_fw_cb);

/*mutex for start & stop is must here. */
static int rtl_op_start(struct ieee80211_hw *hw)
{
	int err;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));

	if (!is_hal_stop(rtlhal))
		return 0;
	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
		return 0;
	mutex_lock(&rtlpriv->locks.conf_mutex);
	err = rtlpriv->intf_ops->adapter_start(hw);
	if (!err)
		rtl_watch_dog_timer_callback((unsigned long)hw);
	mutex_unlock(&rtlpriv->locks.conf_mutex);
	return err;
}

static void rtl_op_stop(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));

	if (