1265 lines
35 KiB
C
1265 lines
35 KiB
C
/*
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* Marvell Wireless LAN device driver: major functions
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*
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* Copyright (C) 2011-2014, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#include "main.h"
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#include "wmm.h"
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#include "cfg80211.h"
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#include "11n.h"
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#define VERSION "1.0"
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const char driver_version[] = "mwifiex " VERSION " (%s) ";
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static char *cal_data_cfg;
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module_param(cal_data_cfg, charp, 0);
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static unsigned short driver_mode;
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module_param(driver_mode, ushort, 0);
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MODULE_PARM_DESC(driver_mode,
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"station=0x1(default), ap-sta=0x3, station-p2p=0x5, ap-sta-p2p=0x7");
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/*
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* This function registers the device and performs all the necessary
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* initializations.
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*
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* The following initialization operations are performed -
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* - Allocate adapter structure
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* - Save interface specific operations table in adapter
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* - Call interface specific initialization routine
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* - Allocate private structures
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* - Set default adapter structure parameters
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* - Initialize locks
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*
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* In case of any errors during inittialization, this function also ensures
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* proper cleanup before exiting.
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*/
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static int mwifiex_register(void *card, struct mwifiex_if_ops *if_ops,
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void **padapter)
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{
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struct mwifiex_adapter *adapter;
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int i;
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adapter = kzalloc(sizeof(struct mwifiex_adapter), GFP_KERNEL);
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if (!adapter)
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return -ENOMEM;
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*padapter = adapter;
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adapter->card = card;
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/* Save interface specific operations in adapter */
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memmove(&adapter->if_ops, if_ops, sizeof(struct mwifiex_if_ops));
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/* card specific initialization has been deferred until now .. */
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if (adapter->if_ops.init_if)
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if (adapter->if_ops.init_if(adapter))
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goto error;
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adapter->priv_num = 0;
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for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
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/* Allocate memory for private structure */
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adapter->priv[i] =
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kzalloc(sizeof(struct mwifiex_private), GFP_KERNEL);
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if (!adapter->priv[i])
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goto error;
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adapter->priv[i]->adapter = adapter;
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adapter->priv_num++;
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}
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mwifiex_init_lock_list(adapter);
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setup_timer(&adapter->cmd_timer, mwifiex_cmd_timeout_func,
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(unsigned long)adapter);
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return 0;
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error:
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dev_dbg(adapter->dev, "info: leave mwifiex_register with error\n");
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for (i = 0; i < adapter->priv_num; i++)
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kfree(adapter->priv[i]);
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kfree(adapter);
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return -1;
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}
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/*
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* This function unregisters the device and performs all the necessary
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* cleanups.
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*
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* The following cleanup operations are performed -
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* - Free the timers
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* - Free beacon buffers
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* - Free private structures
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* - Free adapter structure
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*/
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static int mwifiex_unregister(struct mwifiex_adapter *adapter)
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{
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s32 i;
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if (adapter->if_ops.cleanup_if)
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adapter->if_ops.cleanup_if(adapter);
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del_timer_sync(&adapter->cmd_timer);
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/* Free private structures */
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for (i = 0; i < adapter->priv_num; i++) {
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if (adapter->priv[i]) {
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mwifiex_free_curr_bcn(adapter->priv[i]);
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kfree(adapter->priv[i]);
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}
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}
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vfree(adapter->chan_stats);
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kfree(adapter);
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return 0;
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}
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static int mwifiex_process_rx(struct mwifiex_adapter *adapter)
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{
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unsigned long flags;
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struct sk_buff *skb;
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spin_lock_irqsave(&adapter->rx_proc_lock, flags);
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if (adapter->rx_processing || adapter->rx_locked) {
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spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
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goto exit_rx_proc;
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} else {
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adapter->rx_processing = true;
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spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
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}
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/* Check for Rx data */
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while ((skb = skb_dequeue(&adapter->rx_data_q))) {
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atomic_dec(&adapter->rx_pending);
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if ((adapter->delay_main_work ||
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adapter->iface_type == MWIFIEX_USB) &&
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(atomic_read(&adapter->rx_pending) < LOW_RX_PENDING)) {
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if (adapter->if_ops.submit_rem_rx_urbs)
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adapter->if_ops.submit_rem_rx_urbs(adapter);
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adapter->delay_main_work = false;
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queue_work(adapter->workqueue, &adapter->main_work);
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}
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mwifiex_handle_rx_packet(adapter, skb);
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}
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spin_lock_irqsave(&adapter->rx_proc_lock, flags);
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adapter->rx_processing = false;
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spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
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exit_rx_proc:
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return 0;
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}
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/*
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* The main process.
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*
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* This function is the main procedure of the driver and handles various driver
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* operations. It runs in a loop and provides the core functionalities.
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*
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* The main responsibilities of this function are -
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* - Ensure concurrency control
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* - Handle pending interrupts and call interrupt handlers
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* - Wake up the card if required
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* - Handle command responses and call response handlers
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* - Handle events and call event handlers
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* - Execute pending commands
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* - Transmit pending data packets
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*/
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int mwifiex_main_process(struct mwifiex_adapter *adapter)
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{
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int ret = 0;
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unsigned long flags;
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spin_lock_irqsave(&adapter->main_proc_lock, flags);
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/* Check if already processing */
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if (adapter->mwifiex_processing) {
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spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
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goto exit_main_proc;
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} else {
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adapter->mwifiex_processing = true;
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spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
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}
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process_start:
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do {
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if ((adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING) ||
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(adapter->hw_status == MWIFIEX_HW_STATUS_NOT_READY))
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break;
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/* For non-USB interfaces, If we process interrupts first, it
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* would increase RX pending even further. Avoid this by
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* checking if rx_pending has crossed high threshold and
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* schedule rx work queue and then process interrupts.
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* For USB interface, there are no interrupts. We already have
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* HIGH_RX_PENDING check in usb.c
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*/
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if (atomic_read(&adapter->rx_pending) >= HIGH_RX_PENDING &&
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adapter->iface_type != MWIFIEX_USB) {
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adapter->delay_main_work = true;
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if (!adapter->rx_processing)
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queue_work(adapter->rx_workqueue,
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&adapter->rx_work);
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break;
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}
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/* Handle pending interrupt if any */
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if (adapter->int_status) {
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if (adapter->hs_activated)
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mwifiex_process_hs_config(adapter);
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if (adapter->if_ops.process_int_status)
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adapter->if_ops.process_int_status(adapter);
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}
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if (adapter->rx_work_enabled && adapter->data_received)
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queue_work(adapter->rx_workqueue, &adapter->rx_work);
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/* Need to wake up the card ? */
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if ((adapter->ps_state == PS_STATE_SLEEP) &&
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(adapter->pm_wakeup_card_req &&
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!adapter->pm_wakeup_fw_try) &&
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(is_command_pending(adapter) ||
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!mwifiex_wmm_lists_empty(adapter))) {
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adapter->pm_wakeup_fw_try = true;
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mod_timer(&adapter->wakeup_timer, jiffies + (HZ*3));
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adapter->if_ops.wakeup(adapter);
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continue;
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}
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if (IS_CARD_RX_RCVD(adapter)) {
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adapter->data_received = false;
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adapter->pm_wakeup_fw_try = false;
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del_timer_sync(&adapter->wakeup_timer);
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if (adapter->ps_state == PS_STATE_SLEEP)
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adapter->ps_state = PS_STATE_AWAKE;
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} else {
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/* We have tried to wakeup the card already */
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if (adapter->pm_wakeup_fw_try)
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break;
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if (adapter->ps_state != PS_STATE_AWAKE ||
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adapter->tx_lock_flag)
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break;
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if ((!adapter->scan_chan_gap_enabled &&
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adapter->scan_processing) || adapter->data_sent ||
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mwifiex_wmm_lists_empty(adapter)) {
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if (adapter->cmd_sent || adapter->curr_cmd ||
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(!is_command_pending(adapter)))
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break;
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}
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}
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/* Check for event */
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if (adapter->event_received) {
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adapter->event_received = false;
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mwifiex_process_event(adapter);
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}
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/* Check for Cmd Resp */
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if (adapter->cmd_resp_received) {
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adapter->cmd_resp_received = false;
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mwifiex_process_cmdresp(adapter);
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/* call mwifiex back when init_fw is done */
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if (adapter->hw_status == MWIFIEX_HW_STATUS_INIT_DONE) {
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adapter->hw_status = MWIFIEX_HW_STATUS_READY;
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mwifiex_init_fw_complete(adapter);
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}
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}
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/* Check if we need to confirm Sleep Request
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received previously */
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if (adapter->ps_state == PS_STATE_PRE_SLEEP) {
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if (!adapter->cmd_sent && !adapter->curr_cmd)
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mwifiex_check_ps_cond(adapter);
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}
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/* * The ps_state may have been changed during processing of
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* Sleep Request event.
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*/
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if ((adapter->ps_state == PS_STATE_SLEEP) ||
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(adapter->ps_state == PS_STATE_PRE_SLEEP) ||
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(adapter->ps_state == PS_STATE_SLEEP_CFM) ||
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adapter->tx_lock_flag)
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continue;
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if (!adapter->cmd_sent && !adapter->curr_cmd) {
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if (mwifiex_exec_next_cmd(adapter) == -1) {
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ret = -1;
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break;
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}
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}
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if ((adapter->scan_chan_gap_enabled ||
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!adapter->scan_processing) &&
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!adapter->data_sent && !mwifiex_wmm_lists_empty(adapter)) {
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mwifiex_wmm_process_tx(adapter);
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if (adapter->hs_activated) {
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adapter->is_hs_configured = false;
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mwifiex_hs_activated_event
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(mwifiex_get_priv
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(adapter, MWIFIEX_BSS_ROLE_ANY),
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false);
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}
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}
|
|
|
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if (adapter->delay_null_pkt && !adapter->cmd_sent &&
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!adapter->curr_cmd && !is_command_pending(adapter) &&
|
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mwifiex_wmm_lists_empty(adapter)) {
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if (!mwifiex_send_null_packet
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(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
|
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MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
|
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MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) {
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adapter->delay_null_pkt = false;
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adapter->ps_state = PS_STATE_SLEEP;
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}
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break;
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|
}
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} while (true);
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|
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spin_lock_irqsave(&adapter->main_proc_lock, flags);
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if (!adapter->delay_main_work &&
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(adapter->int_status || IS_CARD_RX_RCVD(adapter))) {
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spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
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goto process_start;
|
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}
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|
|
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adapter->mwifiex_processing = false;
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spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
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|
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exit_main_proc:
|
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if (adapter->hw_status == MWIFIEX_HW_STATUS_CLOSING)
|
|
mwifiex_shutdown_drv(adapter);
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|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mwifiex_main_process);
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|
|
|
/*
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* This function frees the adapter structure.
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*
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* Additionally, this closes the netlink socket, frees the timers
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* and private structures.
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*/
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static void mwifiex_free_adapter(struct mwifiex_adapter *adapter)
|
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{
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if (!adapter) {
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pr_err("%s: adapter is NULL\n", __func__);
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return;
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}
|
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|
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mwifiex_unregister(adapter);
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pr_debug("info: %s: free adapter\n", __func__);
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}
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|
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/*
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* This function cancels all works in the queue and destroys
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* the main workqueue.
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*/
|
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static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter)
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{
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flush_workqueue(adapter->workqueue);
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destroy_workqueue(adapter->workqueue);
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adapter->workqueue = NULL;
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|
|
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if (adapter->rx_workqueue) {
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flush_workqueue(adapter->rx_workqueue);
|
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destroy_workqueue(adapter->rx_workqueue);
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adapter->rx_workqueue = NULL;
|
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}
|
|
}
|
|
|
|
/*
|
|
* This function gets firmware and initializes it.
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|
*
|
|
* The main initialization steps followed are -
|
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* - Download the correct firmware to card
|
|
* - Issue the init commands to firmware
|
|
*/
|
|
static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
|
|
{
|
|
int ret;
|
|
char fmt[64];
|
|
struct mwifiex_private *priv;
|
|
struct mwifiex_adapter *adapter = context;
|
|
struct mwifiex_fw_image fw;
|
|
struct semaphore *sem = adapter->card_sem;
|
|
bool init_failed = false;
|
|
struct wireless_dev *wdev;
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|
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if (!firmware) {
|
|
dev_err(adapter->dev,
|
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"Failed to get firmware %s\n", adapter->fw_name);
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|
goto err_dnld_fw;
|
|
}
|
|
|
|
memset(&fw, 0, sizeof(struct mwifiex_fw_image));
|
|
adapter->firmware = firmware;
|
|
fw.fw_buf = (u8 *) adapter->firmware->data;
|
|
fw.fw_len = adapter->firmware->size;
|
|
|
|
if (adapter->if_ops.dnld_fw)
|
|
ret = adapter->if_ops.dnld_fw(adapter, &fw);
|
|
else
|
|
ret = mwifiex_dnld_fw(adapter, &fw);
|
|
if (ret == -1)
|
|
goto err_dnld_fw;
|
|
|
|
dev_notice(adapter->dev, "WLAN FW is active\n");
|
|
|
|
if (cal_data_cfg) {
|
|
if ((request_firmware(&adapter->cal_data, cal_data_cfg,
|
|
adapter->dev)) < 0)
|
|
dev_err(adapter->dev,
|
|
"Cal data request_firmware() failed\n");
|
|
}
|
|
|
|
/* enable host interrupt after fw dnld is successful */
|
|
if (adapter->if_ops.enable_int) {
|
|
if (adapter->if_ops.enable_int(adapter))
|
|
goto err_dnld_fw;
|
|
}
|
|
|
|
adapter->init_wait_q_woken = false;
|
|
ret = mwifiex_init_fw(adapter);
|
|
if (ret == -1) {
|
|
goto err_init_fw;
|
|
} else if (!ret) {
|
|
adapter->hw_status = MWIFIEX_HW_STATUS_READY;
|
|
goto done;
|
|
}
|
|
/* Wait for mwifiex_init to complete */
|
|
wait_event_interruptible(adapter->init_wait_q,
|
|
adapter->init_wait_q_woken);
|
|
if (adapter->hw_status != MWIFIEX_HW_STATUS_READY)
|
|
goto err_init_fw;
|
|
|
|
priv = adapter->priv[MWIFIEX_BSS_ROLE_STA];
|
|
if (mwifiex_register_cfg80211(adapter)) {
|
|
dev_err(adapter->dev, "cannot register with cfg80211\n");
|
|
goto err_init_fw;
|
|
}
|
|
|
|
if (mwifiex_init_channel_scan_gap(adapter)) {
|
|
dev_err(adapter->dev, "could not init channel stats table\n");
|
|
goto err_init_fw;
|
|
}
|
|
|
|
if (driver_mode) {
|
|
driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK;
|
|
driver_mode |= MWIFIEX_DRIVER_MODE_STA;
|
|
}
|
|
|
|
rtnl_lock();
|
|
/* Create station interface by default */
|
|
wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d", NET_NAME_ENUM,
|
|
NL80211_IFTYPE_STATION, NULL, NULL);
|
|
if (IS_ERR(wdev)) {
|
|
dev_err(adapter->dev, "cannot create default STA interface\n");
|
|
rtnl_unlock();
|
|
goto err_add_intf;
|
|
}
|
|
|
|
if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) {
|
|
wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d", NET_NAME_ENUM,
|
|
NL80211_IFTYPE_AP, NULL, NULL);
|
|
if (IS_ERR(wdev)) {
|
|
dev_err(adapter->dev, "cannot create AP interface\n");
|
|
rtnl_unlock();
|
|
goto err_add_intf;
|
|
}
|
|
}
|
|
|
|
if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) {
|
|
wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d", NET_NAME_ENUM,
|
|
NL80211_IFTYPE_P2P_CLIENT, NULL,
|
|
NULL);
|
|
if (IS_ERR(wdev)) {
|
|
dev_err(adapter->dev,
|
|
"cannot create p2p client interface\n");
|
|
rtnl_unlock();
|
|
goto err_add_intf;
|
|
}
|
|
}
|
|
rtnl_unlock();
|
|
|
|
mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
|
|
dev_notice(adapter->dev, "driver_version = %s\n", fmt);
|
|
goto done;
|
|
|
|
err_add_intf:
|
|
wiphy_unregister(adapter->wiphy);
|
|
wiphy_free(adapter->wiphy);
|
|
err_init_fw:
|
|
if (adapter->if_ops.disable_int)
|
|
adapter->if_ops.disable_int(adapter);
|
|
err_dnld_fw:
|
|
pr_debug("info: %s: unregister device\n", __func__);
|
|
if (adapter->if_ops.unregister_dev)
|
|
adapter->if_ops.unregister_dev(adapter);
|
|
|
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) {
|
|
pr_debug("info: %s: shutdown mwifiex\n", __func__);
|
|
adapter->init_wait_q_woken = false;
|
|
|
|
if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS)
|
|
wait_event_interruptible(adapter->init_wait_q,
|
|
adapter->init_wait_q_woken);
|
|
}
|
|
adapter->surprise_removed = true;
|
|
mwifiex_terminate_workqueue(adapter);
|
|
init_failed = true;
|
|
done:
|
|
if (adapter->cal_data) {
|
|
release_firmware(adapter->cal_data);
|
|
adapter->cal_data = NULL;
|
|
}
|
|
if (adapter->firmware) {
|
|
release_firmware(adapter->firmware);
|
|
adapter->firmware = NULL;
|
|
}
|
|
if (init_failed)
|
|
mwifiex_free_adapter(adapter);
|
|
up(sem);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* This function initializes the hardware and gets firmware.
|
|
*/
|
|
static int mwifiex_init_hw_fw(struct mwifiex_adapter *adapter)
|
|
{
|
|
int ret;
|
|
|
|
ret = request_firmware_nowait(THIS_MODULE, 1, adapter->fw_name,
|
|
adapter->dev, GFP_KERNEL, adapter,
|
|
mwifiex_fw_dpc);
|
|
if (ret < 0)
|
|
dev_err(adapter->dev,
|
|
"request_firmware_nowait() returned error %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* CFG802.11 network device handler for open.
|
|
*
|
|
* Starts the data queue.
|
|
*/
|
|
static int
|
|
mwifiex_open(struct net_device *dev)
|
|
{
|
|
netif_carrier_off(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* CFG802.11 network device handler for close.
|
|
*/
|
|
static int
|
|
mwifiex_close(struct net_device *dev)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
|
|
if (priv->scan_request) {
|
|
dev_dbg(priv->adapter->dev, "aborting scan on ndo_stop\n");
|
|
cfg80211_scan_done(priv->scan_request, 1);
|
|
priv->scan_request = NULL;
|
|
priv->scan_aborting = true;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Add buffer into wmm tx queue and queue work to transmit it.
|
|
*/
|
|
int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb)
|
|
{
|
|
struct netdev_queue *txq;
|
|
int index = mwifiex_1d_to_wmm_queue[skb->priority];
|
|
|
|
if (atomic_inc_return(&priv->wmm_tx_pending[index]) >= MAX_TX_PENDING) {
|
|
txq = netdev_get_tx_queue(priv->netdev, index);
|
|
if (!netif_tx_queue_stopped(txq)) {
|
|
netif_tx_stop_queue(txq);
|
|
dev_dbg(priv->adapter->dev, "stop queue: %d\n", index);
|
|
}
|
|
}
|
|
|
|
atomic_inc(&priv->adapter->tx_pending);
|
|
mwifiex_wmm_add_buf_txqueue(priv, skb);
|
|
|
|
queue_work(priv->adapter->workqueue, &priv->adapter->main_work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct sk_buff *
|
|
mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv,
|
|
struct sk_buff *skb, u8 flag, u64 *cookie)
|
|
{
|
|
struct sk_buff *orig_skb = skb;
|
|
struct mwifiex_txinfo *tx_info, *orig_tx_info;
|
|
|
|
skb = skb_clone(skb, GFP_ATOMIC);
|
|
if (skb) {
|
|
unsigned long flags;
|
|
int id;
|
|
|
|
spin_lock_irqsave(&priv->ack_status_lock, flags);
|
|
id = idr_alloc(&priv->ack_status_frames, orig_skb,
|
|
1, 0xff, GFP_ATOMIC);
|
|
spin_unlock_irqrestore(&priv->ack_status_lock, flags);
|
|
|
|
if (id >= 0) {
|
|
tx_info = MWIFIEX_SKB_TXCB(skb);
|
|
tx_info->ack_frame_id = id;
|
|
tx_info->flags |= flag;
|
|
orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb);
|
|
orig_tx_info->ack_frame_id = id;
|
|
orig_tx_info->flags |= flag;
|
|
|
|
if (flag == MWIFIEX_BUF_FLAG_ACTION_TX_STATUS && cookie)
|
|
orig_tx_info->cookie = *cookie;
|
|
|
|
} else if (skb_shared(skb)) {
|
|
kfree_skb(orig_skb);
|
|
} else {
|
|
kfree_skb(skb);
|
|
skb = orig_skb;
|
|
}
|
|
} else {
|
|
/* couldn't clone -- lose tx status ... */
|
|
skb = orig_skb;
|
|
}
|
|
|
|
return skb;
|
|
}
|
|
|
|
/*
|
|
* CFG802.11 network device handler for data transmission.
|
|
*/
|
|
static int
|
|
mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
struct sk_buff *new_skb;
|
|
struct mwifiex_txinfo *tx_info;
|
|
bool multicast;
|
|
|
|
dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n",
|
|
jiffies, priv->bss_type, priv->bss_num);
|
|
|
|
if (priv->adapter->surprise_removed) {
|
|
kfree_skb(skb);
|
|
priv->stats.tx_dropped++;
|
|
return 0;
|
|
}
|
|
if (!skb->len || (skb->len > ETH_FRAME_LEN)) {
|
|
dev_err(priv->adapter->dev, "Tx: bad skb len %d\n", skb->len);
|
|
kfree_skb(skb);
|
|
priv->stats.tx_dropped++;
|
|
return 0;
|
|
}
|
|
if (skb_headroom(skb) < MWIFIEX_MIN_DATA_HEADER_LEN) {
|
|
dev_dbg(priv->adapter->dev,
|
|
"data: Tx: insufficient skb headroom %d\n",
|
|
skb_headroom(skb));
|
|
/* Insufficient skb headroom - allocate a new skb */
|
|
new_skb =
|
|
skb_realloc_headroom(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
|
|
if (unlikely(!new_skb)) {
|
|
dev_err(priv->adapter->dev, "Tx: cannot alloca new_skb\n");
|
|
kfree_skb(skb);
|
|
priv->stats.tx_dropped++;
|
|
return 0;
|
|
}
|
|
kfree_skb(skb);
|
|
skb = new_skb;
|
|
dev_dbg(priv->adapter->dev, "info: new skb headroomd %d\n",
|
|
skb_headroom(skb));
|
|
}
|
|
|
|
tx_info = MWIFIEX_SKB_TXCB(skb);
|
|
memset(tx_info, 0, sizeof(*tx_info));
|
|
tx_info->bss_num = priv->bss_num;
|
|
tx_info->bss_type = priv->bss_type;
|
|
tx_info->pkt_len = skb->len;
|
|
|
|
multicast = is_multicast_ether_addr(skb->data);
|
|
|
|
if (unlikely(!multicast && skb->sk &&
|
|
skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS &&
|
|
priv->adapter->fw_api_ver == MWIFIEX_FW_V15))
|
|
skb = mwifiex_clone_skb_for_tx_status(priv,
|
|
skb,
|
|
MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS, NULL);
|
|
|
|
/* Record the current time the packet was queued; used to
|
|
* determine the amount of time the packet was queued in
|
|
* the driver before it was sent to the firmware.
|
|
* The delay is then sent along with the packet to the
|
|
* firmware for aggregate delay calculation for stats and
|
|
* MSDU lifetime expiry.
|
|
*/
|
|
__net_timestamp(skb);
|
|
|
|
if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
|
|
priv->bss_type == MWIFIEX_BSS_TYPE_STA &&
|
|
!ether_addr_equal_unaligned(priv->cfg_bssid, skb->data)) {
|
|
if (priv->adapter->auto_tdls && priv->check_tdls_tx)
|
|
mwifiex_tdls_check_tx(priv, skb);
|
|
}
|
|
|
|
mwifiex_queue_tx_pkt(priv, skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* CFG802.11 network device handler for setting MAC address.
|
|
*/
|
|
static int
|
|
mwifiex_set_mac_address(struct net_device *dev, void *addr)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
struct sockaddr *hw_addr = addr;
|
|
int ret;
|
|
|
|
memcpy(priv->curr_addr, hw_addr->sa_data, ETH_ALEN);
|
|
|
|
/* Send request to firmware */
|
|
ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_MAC_ADDRESS,
|
|
HostCmd_ACT_GEN_SET, 0, NULL, true);
|
|
|
|
if (!ret)
|
|
memcpy(priv->netdev->dev_addr, priv->curr_addr, ETH_ALEN);
|
|
else
|
|
dev_err(priv->adapter->dev,
|
|
"set mac address failed: ret=%d\n", ret);
|
|
|
|
memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* CFG802.11 network device handler for setting multicast list.
|
|
*/
|
|
static void mwifiex_set_multicast_list(struct net_device *dev)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
struct mwifiex_multicast_list mcast_list;
|
|
|
|
if (dev->flags & IFF_PROMISC) {
|
|
mcast_list.mode = MWIFIEX_PROMISC_MODE;
|
|
} else if (dev->flags & IFF_ALLMULTI ||
|
|
netdev_mc_count(dev) > MWIFIEX_MAX_MULTICAST_LIST_SIZE) {
|
|
mcast_list.mode = MWIFIEX_ALL_MULTI_MODE;
|
|
} else {
|
|
mcast_list.mode = MWIFIEX_MULTICAST_MODE;
|
|
mcast_list.num_multicast_addr =
|
|
mwifiex_copy_mcast_addr(&mcast_list, dev);
|
|
}
|
|
mwifiex_request_set_multicast_list(priv, &mcast_list);
|
|
}
|
|
|
|
/*
|
|
* CFG802.11 network device handler for transmission timeout.
|
|
*/
|
|
static void
|
|
mwifiex_tx_timeout(struct net_device *dev)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
|
|
priv->num_tx_timeout++;
|
|
priv->tx_timeout_cnt++;
|
|
dev_err(priv->adapter->dev,
|
|
"%lu : Tx timeout(#%d), bss_type-num = %d-%d\n",
|
|
jiffies, priv->tx_timeout_cnt, priv->bss_type, priv->bss_num);
|
|
mwifiex_set_trans_start(dev);
|
|
|
|
if (priv->tx_timeout_cnt > TX_TIMEOUT_THRESHOLD &&
|
|
priv->adapter->if_ops.card_reset) {
|
|
dev_err(priv->adapter->dev,
|
|
"tx_timeout_cnt exceeds threshold. Triggering card reset!\n");
|
|
priv->adapter->if_ops.card_reset(priv->adapter);
|
|
}
|
|
}
|
|
|
|
void mwifiex_dump_drv_info(struct mwifiex_adapter *adapter)
|
|
{
|
|
void *p;
|
|
char drv_version[64];
|
|
struct usb_card_rec *cardp;
|
|
struct sdio_mmc_card *sdio_card;
|
|
struct mwifiex_private *priv;
|
|
int i, idx;
|
|
struct netdev_queue *txq;
|
|
struct mwifiex_debug_info *debug_info;
|
|
|
|
if (adapter->drv_info_dump) {
|
|
vfree(adapter->drv_info_dump);
|
|
adapter->drv_info_size = 0;
|
|
}
|
|
|
|
dev_info(adapter->dev, "=== DRIVER INFO DUMP START===\n");
|
|
|
|
adapter->drv_info_dump = vzalloc(MWIFIEX_DRV_INFO_SIZE_MAX);
|
|
|
|
if (!adapter->drv_info_dump)
|
|
return;
|
|
|
|
p = (char *)(adapter->drv_info_dump);
|
|
p += sprintf(p, "driver_name = " "\"mwifiex\"\n");
|
|
|
|
mwifiex_drv_get_driver_version(adapter, drv_version,
|
|
sizeof(drv_version) - 1);
|
|
p += sprintf(p, "driver_version = %s\n", drv_version);
|
|
|
|
if (adapter->iface_type == MWIFIEX_USB) {
|
|
cardp = (struct usb_card_rec *)adapter->card;
|
|
p += sprintf(p, "tx_cmd_urb_pending = %d\n",
|
|
atomic_read(&cardp->tx_cmd_urb_pending));
|
|
p += sprintf(p, "tx_data_urb_pending = %d\n",
|
|
atomic_read(&cardp->tx_data_urb_pending));
|
|
p += sprintf(p, "rx_cmd_urb_pending = %d\n",
|
|
atomic_read(&cardp->rx_cmd_urb_pending));
|
|
p += sprintf(p, "rx_data_urb_pending = %d\n",
|
|
atomic_read(&cardp->rx_data_urb_pending));
|
|
}
|
|
|
|
p += sprintf(p, "tx_pending = %d\n",
|
|
atomic_read(&adapter->tx_pending));
|
|
p += sprintf(p, "rx_pending = %d\n",
|
|
atomic_read(&adapter->rx_pending));
|
|
|
|
if (adapter->iface_type == MWIFIEX_SDIO) {
|
|
sdio_card = (struct sdio_mmc_card *)adapter->card;
|
|
p += sprintf(p, "\nmp_rd_bitmap=0x%x curr_rd_port=0x%x\n",
|
|
sdio_card->mp_rd_bitmap, sdio_card->curr_rd_port);
|
|
p += sprintf(p, "mp_wr_bitmap=0x%x curr_wr_port=0x%x\n",
|
|
sdio_card->mp_wr_bitmap, sdio_card->curr_wr_port);
|
|
}
|
|
|
|
for (i = 0; i < adapter->priv_num; i++) {
|
|
if (!adapter->priv[i] || !adapter->priv[i]->netdev)
|
|
continue;
|
|
priv = adapter->priv[i];
|
|
p += sprintf(p, "\n[interface : \"%s\"]\n",
|
|
priv->netdev->name);
|
|
p += sprintf(p, "wmm_tx_pending[0] = %d\n",
|
|
atomic_read(&priv->wmm_tx_pending[0]));
|
|
p += sprintf(p, "wmm_tx_pending[1] = %d\n",
|
|
atomic_read(&priv->wmm_tx_pending[1]));
|
|
p += sprintf(p, "wmm_tx_pending[2] = %d\n",
|
|
atomic_read(&priv->wmm_tx_pending[2]));
|
|
p += sprintf(p, "wmm_tx_pending[3] = %d\n",
|
|
atomic_read(&priv->wmm_tx_pending[3]));
|
|
p += sprintf(p, "media_state=\"%s\"\n", !priv->media_connected ?
|
|
"Disconnected" : "Connected");
|
|
p += sprintf(p, "carrier %s\n", (netif_carrier_ok(priv->netdev)
|
|
? "on" : "off"));
|
|
for (idx = 0; idx < priv->netdev->num_tx_queues; idx++) {
|
|
txq = netdev_get_tx_queue(priv->netdev, idx);
|
|
p += sprintf(p, "tx queue %d:%s ", idx,
|
|
netif_tx_queue_stopped(txq) ?
|
|
"stopped" : "started");
|
|
}
|
|
p += sprintf(p, "\n%s: num_tx_timeout = %d\n",
|
|
priv->netdev->name, priv->num_tx_timeout);
|
|
}
|
|
|
|
if (adapter->iface_type == MWIFIEX_SDIO) {
|
|
p += sprintf(p, "\n=== SDIO register DUMP===\n");
|
|
if (adapter->if_ops.reg_dump)
|
|
p += adapter->if_ops.reg_dump(adapter, p);
|
|
}
|
|
|
|
p += sprintf(p, "\n=== MORE DEBUG INFORMATION\n");
|
|
debug_info = kzalloc(sizeof(*debug_info), GFP_KERNEL);
|
|
if (debug_info) {
|
|
for (i = 0; i < adapter->priv_num; i++) {
|
|
if (!adapter->priv[i] || !adapter->priv[i]->netdev)
|
|
continue;
|
|
priv = adapter->priv[i];
|
|
mwifiex_get_debug_info(priv, debug_info);
|
|
p += mwifiex_debug_info_to_buffer(priv, p, debug_info);
|
|
break;
|
|
}
|
|
kfree(debug_info);
|
|
}
|
|
|
|
adapter->drv_info_size = p - adapter->drv_info_dump;
|
|
dev_info(adapter->dev, "=== DRIVER INFO DUMP END===\n");
|
|
}
|
|
EXPORT_SYMBOL_GPL(mwifiex_dump_drv_info);
|
|
|
|
/*
|
|
* CFG802.11 network device handler for statistics retrieval.
|
|
*/
|
|
static struct net_device_stats *mwifiex_get_stats(struct net_device *dev)
|
|
{
|
|
struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
|
|
|
|
return &priv->stats;
|
|
}
|
|
|
|
static u16
|
|
mwifiex_netdev_select_wmm_queue(struct net_device *dev, struct sk_buff *skb,
|
|
void *accel_priv, select_queue_fallback_t fallback)
|
|
{
|
|
skb->priority = cfg80211_classify8021d(skb, NULL);
|
|
return mwifiex_1d_to_wmm_queue[skb->priority];
|
|
}
|
|
|
|
/* Network device handlers */
|
|
static const struct net_device_ops mwifiex_netdev_ops = {
|
|
.ndo_open = mwifiex_open,
|
|
.ndo_stop = mwifiex_close,
|
|
.ndo_start_xmit = mwifiex_hard_start_xmit,
|
|
.ndo_set_mac_address = mwifiex_set_mac_address,
|
|
.ndo_tx_timeout = mwifiex_tx_timeout,
|
|
.ndo_get_stats = mwifiex_get_stats,
|
|
.ndo_set_rx_mode = mwifiex_set_multicast_list,
|
|
.ndo_select_queue = mwifiex_netdev_select_wmm_queue,
|
|
};
|
|
|
|
/*
|
|
* This function initializes the private structure parameters.
|
|
*
|
|
* The following wait queues are initialized -
|
|
* - IOCTL wait queue
|
|
* - Command wait queue
|
|
* - Statistics wait queue
|
|
*
|
|
* ...and the following default parameters are set -
|
|
* - Current key index : Set to 0
|
|
* - Rate index : Set to auto
|
|
* - Media connected : Set to disconnected
|
|
* - Adhoc link sensed : Set to false
|
|
* - Nick name : Set to null
|
|
* - Number of Tx timeout : Set to 0
|
|
* - Device address : Set to current address
|
|
* - Rx histogram statistc : Set to 0
|
|
*
|
|
* In addition, the CFG80211 work queue is also created.
|
|
*/
|
|
void mwifiex_init_priv_params(struct mwifiex_private *priv,
|
|
struct net_device *dev)
|
|
{
|
|
dev->netdev_ops = &mwifiex_netdev_ops;
|
|
dev->destructor = free_netdev;
|
|
/* Initialize private structure */
|
|
priv->current_key_index = 0;
|
|
priv->media_connected = false;
|
|
memset(priv->mgmt_ie, 0,
|
|
sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX);
|
|
priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK;
|
|
priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK;
|
|
priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK;
|
|
priv->gen_idx = MWIFIEX_AUTO_IDX_MASK;
|
|
priv->num_tx_timeout = 0;
|
|
ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr);
|
|
memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN);
|
|
|
|
if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
|
|
GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
|
|
priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL);
|
|
if (priv->hist_data)
|
|
mwifiex_hist_data_reset(priv);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This function check if command is pending.
|
|
*/
|
|
int is_command_pending(struct mwifiex_adapter *adapter)
|
|
{
|
|
unsigned long flags;
|
|
int is_cmd_pend_q_empty;
|
|
|
|
spin_lock_irqsave(&adapter->cmd_pending_q_lock, flags);
|
|
is_cmd_pend_q_empty = list_empty(&adapter->cmd_pending_q);
|
|
spin_unlock_irqrestore(&adapter->cmd_pending_q_lock, flags);
|
|
|
|
return !is_cmd_pend_q_empty;
|
|
}
|
|
|
|
/*
|
|
* This is the RX work queue function.
|
|
*
|
|
* It handles the RX operations.
|
|
*/
|
|
static void mwifiex_rx_work_queue(struct work_struct *work)
|
|
{
|
|
struct mwifiex_adapter *adapter =
|
|
container_of(work, struct mwifiex_adapter, rx_work);
|
|
|
|
if (adapter->surprise_removed)
|
|
return;
|
|
mwifiex_process_rx(adapter);
|
|
}
|
|
|
|
/*
|
|
* This is the main work queue function.
|
|
*
|
|
* It handles the main process, which in turn handles the complete
|
|
* driver operations.
|
|
*/
|
|
static void mwifiex_main_work_queue(struct work_struct *work)
|
|
{
|
|
struct mwifiex_adapter *adapter =
|
|
container_of(work, struct mwifiex_adapter, main_work);
|
|
|
|
if (adapter->surprise_removed)
|
|
return;
|
|
mwifiex_main_process(adapter);
|
|
}
|
|
|
|
/*
|
|
* This function adds the card.
|
|
*
|
|
* This function follows the following major steps to set up the device -
|
|
* - Initialize software. This includes probing the card, registering
|
|
* the interface operations table, and allocating/initializing the
|
|
* adapter structure
|
|
* - Set up the netlink socket
|
|
* - Create and start the main work queue
|
|
* - Register the device
|
|
* - Initialize firmware and hardware
|
|
* - Add logical interfaces
|
|
*/
|
|
int
|
|
mwifiex_add_card(void *card, struct semaphore *sem,
|
|
struct mwifiex_if_ops *if_ops, u8 iface_type)
|
|
{
|
|
struct mwifiex_adapter *adapter;
|
|
|
|
if (down_interruptible(sem))
|
|
goto exit_sem_err;
|
|
|
|
if (mwifiex_register(card, if_ops, (void **)&adapter)) {
|
|
pr_err("%s: software init failed\n", __func__);
|
|
goto err_init_sw;
|
|
}
|
|
|
|
adapter->iface_type = iface_type;
|
|
adapter->card_sem = sem;
|
|
|
|
adapter->hw_status = MWIFIEX_HW_STATUS_INITIALIZING;
|
|
adapter->surprise_removed = false;
|
|
init_waitqueue_head(&adapter->init_wait_q);
|
|
adapter->is_suspended = false;
|
|
adapter->hs_activated = false;
|
|
init_waitqueue_head(&adapter->hs_activate_wait_q);
|
|
init_waitqueue_head(&adapter->cmd_wait_q.wait);
|
|
adapter->cmd_wait_q.status = 0;
|
|
adapter->scan_wait_q_woken = false;
|
|
|
|
if ((num_possible_cpus() > 1) || adapter->iface_type == MWIFIEX_USB) {
|
|
adapter->rx_work_enabled = true;
|
|
pr_notice("rx work enabled, cpus %d\n", num_possible_cpus());
|
|
}
|
|
|
|
adapter->workqueue =
|
|
alloc_workqueue("MWIFIEX_WORK_QUEUE",
|
|
WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1);
|
|
if (!adapter->workqueue)
|
|
goto err_kmalloc;
|
|
|
|
INIT_WORK(&adapter->main_work, mwifiex_main_work_queue);
|
|
|
|
if (adapter->rx_work_enabled) {
|
|
adapter->rx_workqueue = alloc_workqueue("MWIFIEX_RX_WORK_QUEUE",
|
|
WQ_HIGHPRI |
|
|
WQ_MEM_RECLAIM |
|
|
WQ_UNBOUND, 1);
|
|
if (!adapter->rx_workqueue)
|
|
goto err_kmalloc;
|
|
|
|
INIT_WORK(&adapter->rx_work, mwifiex_rx_work_queue);
|
|
}
|
|
|
|
if (adapter->if_ops.iface_work)
|
|
INIT_WORK(&adapter->iface_work, adapter->if_ops.iface_work);
|
|
|
|
/* Register the device. Fill up the private data structure with relevant
|
|
information from the card. */
|
|
if (adapter->if_ops.register_dev(adapter)) {
|
|
pr_err("%s: failed to register mwifiex device\n", __func__);
|
|
goto err_registerdev;
|
|
}
|
|
|
|
if (mwifiex_init_hw_fw(adapter)) {
|
|
pr_err("%s: firmware init failed\n", __func__);
|
|
goto err_init_fw;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_init_fw:
|
|
pr_debug("info: %s: unregister device\n", __func__);
|
|
if (adapter->if_ops.unregister_dev)
|
|
adapter->if_ops.unregister_dev(adapter);
|
|
if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) {
|
|
pr_debug("info: %s: shutdown mwifiex\n", __func__);
|
|
adapter->init_wait_q_woken = false;
|
|
|
|
if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS)
|
|
wait_event_interruptible(adapter->init_wait_q,
|
|
adapter->init_wait_q_woken);
|
|
}
|
|
err_registerdev:
|
|
adapter->surprise_removed = true;
|
|
mwifiex_terminate_workqueue(adapter);
|
|
err_kmalloc:
|
|
mwifiex_free_adapter(adapter);
|
|
|
|
err_init_sw:
|
|
up(sem);
|
|
|
|
exit_sem_err:
|
|
return -1;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mwifiex_add_card);
|
|
|
|
/*
|
|
* This function removes the card.
|
|
*
|
|
* This function follows the following major steps to remove the device -
|
|
* - Stop data traffic
|
|
* - Shutdown firmware
|
|
* - Remove the logical interfaces
|
|
* - Terminate the work queue
|
|
* - Unregister the device
|
|
* - Free the adapter structure
|
|
*/
|
|
int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem)
|
|
{
|
|
struct mwifiex_private *priv = NULL;
|
|
int i;
|
|
|
|
if (down_interruptible(sem))
|
|
goto exit_sem_err;
|
|
|
|
if (!adapter)
|
|
goto exit_remove;
|
|
|
|
/* We can no longer handle interrupts once we start doing the teardown
|
|
* below. */
|
|
if (adapter->if_ops.disable_int)
|
|
adapter->if_ops.disable_int(adapter);
|
|
|
|
adapter->surprise_removed = true;
|
|
|
|
mwifiex_terminate_workqueue(adapter);
|
|
|
|
/* Stop data */
|
|
for (i = 0; i < adapter->priv_num; i++) {
|
|
priv = adapter->priv[i];
|
|
if (priv && priv->netdev) {
|
|
mwifiex_stop_net_dev_queue(priv->netdev, adapter);
|
|
if (netif_carrier_ok(priv->netdev))
|
|
netif_carrier_off(priv->netdev);
|
|
}
|
|
}
|
|
|
|
dev_dbg(adapter->dev, "cmd: calling mwifiex_shutdown_drv...\n");
|
|
adapter->init_wait_q_woken = false;
|
|
|
|
if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS)
|
|
wait_event_interruptible(adapter->init_wait_q,
|
|
adapter->init_wait_q_woken);
|
|
dev_dbg(adapter->dev, "cmd: mwifiex_shutdown_drv done\n");
|
|
if (atomic_read(&adapter->rx_pending) ||
|
|
atomic_read(&adapter->tx_pending) ||
|
|
atomic_read(&adapter->cmd_pending)) {
|
|
dev_err(adapter->dev, "rx_pending=%d, tx_pending=%d, "
|
|
"cmd_pending=%d\n",
|
|
atomic_read(&adapter->rx_pending),
|
|
atomic_read(&adapter->tx_pending),
|
|
atomic_read(&adapter->cmd_pending));
|
|
}
|
|
|
|
for (i = 0; i < adapter->priv_num; i++) {
|
|
priv = adapter->priv[i];
|
|
|
|
if (!priv)
|
|
continue;
|
|
|
|
rtnl_lock();
|
|
if (priv->netdev &&
|
|
priv->wdev.iftype != NL80211_IFTYPE_UNSPECIFIED)
|
|
mwifiex_del_virtual_intf(adapter->wiphy, &priv->wdev);
|
|
rtnl_unlock();
|
|
}
|
|
|
|
wiphy_unregister(adapter->wiphy);
|
|
wiphy_free(adapter->wiphy);
|
|
|
|
/* Unregister device */
|
|
dev_dbg(adapter->dev, "info: unregister device\n");
|
|
if (adapter->if_ops.unregister_dev)
|
|
adapter->if_ops.unregister_dev(adapter);
|
|
/* Free adapter structure */
|
|
dev_dbg(adapter->dev, "info: free adapter\n");
|
|
mwifiex_free_adapter(adapter);
|
|
|
|
exit_remove:
|
|
up(sem);
|
|
exit_sem_err:
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(mwifiex_remove_card);
|
|
|
|
/*
|
|
* This function initializes the module.
|
|
*
|
|
* The debug FS is also initialized if configured.
|
|
*/
|
|
static int
|
|
mwifiex_init_module(void)
|
|
{
|
|
#ifdef CONFIG_DEBUG_FS
|
|
mwifiex_debugfs_init();
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function cleans up the module.
|
|
*
|
|
* The debug FS is removed if available.
|
|
*/
|
|
static void
|
|
mwifiex_cleanup_module(void)
|
|
{
|
|
#ifdef CONFIG_DEBUG_FS
|
|
mwifiex_debugfs_remove();
|
|
#endif
|
|
}
|
|
|
|
module_init(mwifiex_init_module);
|
|
module_exit(mwifiex_cleanup_module);
|
|
|
|
MODULE_AUTHOR("Marvell International Ltd.");
|
|
MODULE_DESCRIPTION("Marvell WiFi-Ex Driver version " VERSION);
|
|
MODULE_VERSION(VERSION);
|
|
MODULE_LICENSE("GPL v2");
|