![Karl Beldan](/assets/img/avatar_default.png)
Drivers that don't use chanctxes cannot perform VHT association because they still use a "backward compatibility" pair of {ieee80211_channel, nl80211_channel_type} in ieee80211_conf and ieee80211_local. Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> [fix kernel-doc] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
770 lines
19 KiB
C
770 lines
19 KiB
C
/*
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* Copyright (C) 2008, cozybit Inc.
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* Copyright (C) 2003-2006, Marvell International Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/hardirq.h>
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#include <linux/slab.h>
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#include <linux/etherdevice.h>
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#include <linux/module.h>
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#include "libertas_tf.h"
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#define DRIVER_RELEASE_VERSION "004.p0"
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/* thinfirm version: 5.132.X.pX */
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#define LBTF_FW_VER_MIN 0x05840300
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#define LBTF_FW_VER_MAX 0x0584ffff
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#define QOS_CONTROL_LEN 2
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/* Module parameters */
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unsigned int lbtf_debug;
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EXPORT_SYMBOL_GPL(lbtf_debug);
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module_param_named(libertas_tf_debug, lbtf_debug, int, 0644);
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static const char lbtf_driver_version[] = "THINFIRM-USB8388-" DRIVER_RELEASE_VERSION
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#ifdef DEBUG
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"-dbg"
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#endif
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"";
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struct workqueue_struct *lbtf_wq;
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static const struct ieee80211_channel lbtf_channels[] = {
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{ .center_freq = 2412, .hw_value = 1 },
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{ .center_freq = 2417, .hw_value = 2 },
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{ .center_freq = 2422, .hw_value = 3 },
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{ .center_freq = 2427, .hw_value = 4 },
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{ .center_freq = 2432, .hw_value = 5 },
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{ .center_freq = 2437, .hw_value = 6 },
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{ .center_freq = 2442, .hw_value = 7 },
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{ .center_freq = 2447, .hw_value = 8 },
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{ .center_freq = 2452, .hw_value = 9 },
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{ .center_freq = 2457, .hw_value = 10 },
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{ .center_freq = 2462, .hw_value = 11 },
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{ .center_freq = 2467, .hw_value = 12 },
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{ .center_freq = 2472, .hw_value = 13 },
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{ .center_freq = 2484, .hw_value = 14 },
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};
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/* This table contains the hardware specific values for the modulation rates. */
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static const struct ieee80211_rate lbtf_rates[] = {
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{ .bitrate = 10,
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.hw_value = 0, },
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{ .bitrate = 20,
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.hw_value = 1,
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.flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 55,
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.hw_value = 2,
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.flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 110,
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.hw_value = 3,
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.flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 60,
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.hw_value = 5,
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.flags = 0 },
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{ .bitrate = 90,
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.hw_value = 6,
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.flags = 0 },
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{ .bitrate = 120,
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.hw_value = 7,
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.flags = 0 },
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{ .bitrate = 180,
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.hw_value = 8,
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.flags = 0 },
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{ .bitrate = 240,
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.hw_value = 9,
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.flags = 0 },
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{ .bitrate = 360,
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.hw_value = 10,
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.flags = 0 },
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{ .bitrate = 480,
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.hw_value = 11,
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.flags = 0 },
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{ .bitrate = 540,
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.hw_value = 12,
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.flags = 0 },
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};
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static void lbtf_cmd_work(struct work_struct *work)
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{
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struct lbtf_private *priv = container_of(work, struct lbtf_private,
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cmd_work);
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lbtf_deb_enter(LBTF_DEB_CMD);
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spin_lock_irq(&priv->driver_lock);
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/* command response? */
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if (priv->cmd_response_rxed) {
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priv->cmd_response_rxed = 0;
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spin_unlock_irq(&priv->driver_lock);
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lbtf_process_rx_command(priv);
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spin_lock_irq(&priv->driver_lock);
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}
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if (priv->cmd_timed_out && priv->cur_cmd) {
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struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
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if (++priv->nr_retries > 10) {
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lbtf_complete_command(priv, cmdnode,
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-ETIMEDOUT);
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priv->nr_retries = 0;
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} else {
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priv->cur_cmd = NULL;
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/* Stick it back at the _top_ of the pending
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* queue for immediate resubmission */
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list_add(&cmdnode->list, &priv->cmdpendingq);
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}
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}
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priv->cmd_timed_out = 0;
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spin_unlock_irq(&priv->driver_lock);
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if (!priv->fw_ready) {
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lbtf_deb_leave_args(LBTF_DEB_CMD, "fw not ready");
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return;
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}
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/* Execute the next command */
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if (!priv->cur_cmd)
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lbtf_execute_next_command(priv);
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lbtf_deb_leave(LBTF_DEB_CMD);
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}
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/**
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* lbtf_setup_firmware: initialize firmware.
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*
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* @priv A pointer to struct lbtf_private structure
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*
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* Returns: 0 on success.
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*/
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static int lbtf_setup_firmware(struct lbtf_private *priv)
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{
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int ret = -1;
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lbtf_deb_enter(LBTF_DEB_FW);
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/*
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* Read priv address from HW
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*/
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memset(priv->current_addr, 0xff, ETH_ALEN);
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ret = lbtf_update_hw_spec(priv);
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if (ret) {
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ret = -1;
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goto done;
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}
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lbtf_set_mac_control(priv);
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lbtf_set_radio_control(priv);
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ret = 0;
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done:
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lbtf_deb_leave_args(LBTF_DEB_FW, "ret: %d", ret);
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return ret;
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}
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/**
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* This function handles the timeout of command sending.
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* It will re-send the same command again.
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*/
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static void command_timer_fn(unsigned long data)
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{
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struct lbtf_private *priv = (struct lbtf_private *)data;
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unsigned long flags;
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lbtf_deb_enter(LBTF_DEB_CMD);
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spin_lock_irqsave(&priv->driver_lock, flags);
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if (!priv->cur_cmd) {
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printk(KERN_DEBUG "libertastf: command timer expired; "
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"no pending command\n");
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goto out;
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}
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printk(KERN_DEBUG "libertas: command %x timed out\n",
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le16_to_cpu(priv->cur_cmd->cmdbuf->command));
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priv->cmd_timed_out = 1;
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queue_work(lbtf_wq, &priv->cmd_work);
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out:
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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lbtf_deb_leave(LBTF_DEB_CMD);
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}
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static int lbtf_init_adapter(struct lbtf_private *priv)
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{
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lbtf_deb_enter(LBTF_DEB_MAIN);
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memset(priv->current_addr, 0xff, ETH_ALEN);
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mutex_init(&priv->lock);
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priv->vif = NULL;
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setup_timer(&priv->command_timer, command_timer_fn,
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(unsigned long)priv);
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INIT_LIST_HEAD(&priv->cmdfreeq);
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INIT_LIST_HEAD(&priv->cmdpendingq);
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spin_lock_init(&priv->driver_lock);
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/* Allocate the command buffers */
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if (lbtf_allocate_cmd_buffer(priv))
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return -1;
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lbtf_deb_leave(LBTF_DEB_MAIN);
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return 0;
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}
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static void lbtf_free_adapter(struct lbtf_private *priv)
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{
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lbtf_deb_enter(LBTF_DEB_MAIN);
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lbtf_free_cmd_buffer(priv);
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del_timer(&priv->command_timer);
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lbtf_deb_leave(LBTF_DEB_MAIN);
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}
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static void lbtf_op_tx(struct ieee80211_hw *hw,
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struct ieee80211_tx_control *control,
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struct sk_buff *skb)
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{
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struct lbtf_private *priv = hw->priv;
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priv->skb_to_tx = skb;
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queue_work(lbtf_wq, &priv->tx_work);
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/*
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* queue will be restarted when we receive transmission feedback if
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* there are no buffered multicast frames to send
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*/
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ieee80211_stop_queues(priv->hw);
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}
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static void lbtf_tx_work(struct work_struct *work)
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{
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struct lbtf_private *priv = container_of(work, struct lbtf_private,
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tx_work);
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unsigned int len;
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struct ieee80211_tx_info *info;
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struct txpd *txpd;
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struct sk_buff *skb = NULL;
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int err;
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lbtf_deb_enter(LBTF_DEB_MACOPS | LBTF_DEB_TX);
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if ((priv->vif->type == NL80211_IFTYPE_AP) &&
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(!skb_queue_empty(&priv->bc_ps_buf)))
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skb = skb_dequeue(&priv->bc_ps_buf);
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else if (priv->skb_to_tx) {
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skb = priv->skb_to_tx;
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priv->skb_to_tx = NULL;
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} else {
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lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
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return;
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}
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len = skb->len;
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info = IEEE80211_SKB_CB(skb);
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txpd = (struct txpd *) skb_push(skb, sizeof(struct txpd));
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if (priv->surpriseremoved) {
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dev_kfree_skb_any(skb);
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lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
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return;
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}
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memset(txpd, 0, sizeof(struct txpd));
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/* Activate per-packet rate selection */
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txpd->tx_control |= cpu_to_le32(MRVL_PER_PACKET_RATE |
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ieee80211_get_tx_rate(priv->hw, info)->hw_value);
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/* copy destination address from 802.11 header */
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memcpy(txpd->tx_dest_addr_high, skb->data + sizeof(struct txpd) + 4,
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ETH_ALEN);
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txpd->tx_packet_length = cpu_to_le16(len);
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txpd->tx_packet_location = cpu_to_le32(sizeof(struct txpd));
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lbtf_deb_hex(LBTF_DEB_TX, "TX Data", skb->data, min_t(unsigned int, skb->len, 100));
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BUG_ON(priv->tx_skb);
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spin_lock_irq(&priv->driver_lock);
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priv->tx_skb = skb;
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err = priv->hw_host_to_card(priv, MVMS_DAT, skb->data, skb->len);
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spin_unlock_irq(&priv->driver_lock);
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if (err) {
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dev_kfree_skb_any(skb);
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priv->tx_skb = NULL;
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pr_err("TX error: %d", err);
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}
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lbtf_deb_leave(LBTF_DEB_MACOPS | LBTF_DEB_TX);
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}
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static int lbtf_op_start(struct ieee80211_hw *hw)
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{
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struct lbtf_private *priv = hw->priv;
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void *card = priv->card;
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int ret = -1;
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lbtf_deb_enter(LBTF_DEB_MACOPS);
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if (!priv->fw_ready)
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/* Upload firmware */
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if (priv->hw_prog_firmware(card))
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goto err_prog_firmware;
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/* poke the firmware */
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priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
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priv->radioon = RADIO_ON;
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priv->mac_control = CMD_ACT_MAC_RX_ON | CMD_ACT_MAC_TX_ON;
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ret = lbtf_setup_firmware(priv);
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if (ret)
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goto err_prog_firmware;
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if ((priv->fwrelease < LBTF_FW_VER_MIN) ||
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(priv->fwrelease > LBTF_FW_VER_MAX)) {
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ret = -1;
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goto err_prog_firmware;
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}
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printk(KERN_INFO "libertastf: Marvell WLAN 802.11 thinfirm adapter\n");
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lbtf_deb_leave(LBTF_DEB_MACOPS);
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return 0;
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err_prog_firmware:
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priv->hw_reset_device(card);
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lbtf_deb_leave_args(LBTF_DEB_MACOPS, "error programing fw; ret=%d", ret);
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return ret;
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}
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static void lbtf_op_stop(struct ieee80211_hw *hw)
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{
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struct lbtf_private *priv = hw->priv;
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unsigned long flags;
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struct sk_buff *skb;
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struct cmd_ctrl_node *cmdnode;
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lbtf_deb_enter(LBTF_DEB_MACOPS);
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/* Flush pending command nodes */
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spin_lock_irqsave(&priv->driver_lock, flags);
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list_for_each_entry(cmdnode, &priv->cmdpendingq, list) {
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cmdnode->result = -ENOENT;
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cmdnode->cmdwaitqwoken = 1;
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wake_up_interruptible(&cmdnode->cmdwait_q);
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}
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spin_unlock_irqrestore(&priv->driver_lock, flags);
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cancel_work_sync(&priv->cmd_work);
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cancel_work_sync(&priv->tx_work);
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while ((skb = skb_dequeue(&priv->bc_ps_buf)))
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dev_kfree_skb_any(skb);
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priv->radioon = RADIO_OFF;
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lbtf_set_radio_control(priv);
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lbtf_deb_leave(LBTF_DEB_MACOPS);
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}
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static int lbtf_op_add_interface(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif)
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{
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struct lbtf_private *priv = hw->priv;
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lbtf_deb_enter(LBTF_DEB_MACOPS);
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if (priv->vif != NULL)
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return -EOPNOTSUPP;
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priv->vif = vif;
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switch (vif->type) {
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case NL80211_IFTYPE_MESH_POINT:
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case NL80211_IFTYPE_AP:
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lbtf_set_mode(priv, LBTF_AP_MODE);
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break;
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case NL80211_IFTYPE_STATION:
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lbtf_set_mode(priv, LBTF_STA_MODE);
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break;
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default:
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priv->vif = NULL;
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return -EOPNOTSUPP;
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}
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lbtf_set_mac_address(priv, (u8 *) vif->addr);
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lbtf_deb_leave(LBTF_DEB_MACOPS);
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return 0;
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}
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static void lbtf_op_remove_interface(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif)
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{
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struct lbtf_private *priv = hw->priv;
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lbtf_deb_enter(LBTF_DEB_MACOPS);
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if (priv->vif->type == NL80211_IFTYPE_AP ||
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priv->vif->type == NL80211_IFTYPE_MESH_POINT)
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lbtf_beacon_ctrl(priv, 0, 0);
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lbtf_set_mode(priv, LBTF_PASSIVE_MODE);
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lbtf_set_bssid(priv, 0, NULL);
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priv->vif = NULL;
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lbtf_deb_leave(LBTF_DEB_MACOPS);
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}
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static int lbtf_op_config(struct ieee80211_hw *hw, u32 changed)
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{
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struct lbtf_private *priv = hw->priv;
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struct ieee80211_conf *conf = &hw->conf;
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lbtf_deb_enter(LBTF_DEB_MACOPS);
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if (conf->chandef.chan->center_freq != priv->cur_freq) {
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priv->cur_freq = conf->chandef.chan->center_freq;
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lbtf_set_channel(priv, conf->chandef.chan->hw_value);
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}
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lbtf_deb_leave(LBTF_DEB_MACOPS);
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return 0;
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}
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static u64 lbtf_op_prepare_multicast(struct ieee80211_hw *hw,
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struct netdev_hw_addr_list *mc_list)
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{
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struct lbtf_private *priv = hw->priv;
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int i;
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struct netdev_hw_addr *ha;
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int mc_count = netdev_hw_addr_list_count(mc_list);
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if (!mc_count || mc_count > MRVDRV_MAX_MULTICAST_LIST_SIZE)
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return mc_count;
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priv->nr_of_multicastmacaddr = mc_count;
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i = 0;
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netdev_hw_addr_list_for_each(ha, mc_list)
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memcpy(&priv->multicastlist[i++], ha->addr, ETH_ALEN);
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return mc_count;
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}
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#define SUPPORTED_FIF_FLAGS (FIF_PROMISC_IN_BSS | FIF_ALLMULTI)
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static void lbtf_op_configure_filter(struct ieee80211_hw *hw,
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unsigned int changed_flags,
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unsigned int *new_flags,
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u64 multicast)
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{
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struct lbtf_private *priv = hw->priv;
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int old_mac_control = priv->mac_control;
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lbtf_deb_enter(LBTF_DEB_MACOPS);
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changed_flags &= SUPPORTED_FIF_FLAGS;
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*new_flags &= SUPPORTED_FIF_FLAGS;
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if (!changed_flags) {
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lbtf_deb_leave(LBTF_DEB_MACOPS);
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return;
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}
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if (*new_flags & (FIF_PROMISC_IN_BSS))
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priv->mac_control |= CMD_ACT_MAC_PROMISCUOUS_ENABLE;
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else
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priv->mac_control &= ~CMD_ACT_MAC_PROMISCUOUS_ENABLE;
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if (*new_flags & (FIF_ALLMULTI) ||
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multicast > MRVDRV_MAX_MULTICAST_LIST_SIZE) {
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priv->mac_control |= CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
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priv->mac_control &= ~CMD_ACT_MAC_MULTICAST_ENABLE;
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} else if (multicast) {
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priv->mac_control |= CMD_ACT_MAC_MULTICAST_ENABLE;
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priv->mac_control &= ~CMD_ACT_MAC_ALL_MULTICAST_ENABLE;
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lbtf_cmd_set_mac_multicast_addr(priv);
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} else {
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priv->mac_control &= ~(CMD_ACT_MAC_MULTICAST_ENABLE |
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CMD_ACT_MAC_ALL_MULTICAST_ENABLE);
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|
if (priv->nr_of_multicastmacaddr) {
|
|
priv->nr_of_multicastmacaddr = 0;
|
|
lbtf_cmd_set_mac_multicast_addr(priv);
|
|
}
|
|
}
|
|
|
|
|
|
if (priv->mac_control != old_mac_control)
|
|
lbtf_set_mac_control(priv);
|
|
|
|
lbtf_deb_leave(LBTF_DEB_MACOPS);
|
|
}
|
|
|
|
static void lbtf_op_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u32 changes)
|
|
{
|
|
struct lbtf_private *priv = hw->priv;
|
|
struct sk_buff *beacon;
|
|
lbtf_deb_enter(LBTF_DEB_MACOPS);
|
|
|
|
if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_INT)) {
|
|
switch (priv->vif->type) {
|
|
case NL80211_IFTYPE_AP:
|
|
case NL80211_IFTYPE_MESH_POINT:
|
|
beacon = ieee80211_beacon_get(hw, vif);
|
|
if (beacon) {
|
|
lbtf_beacon_set(priv, beacon);
|
|
kfree_skb(beacon);
|
|
lbtf_beacon_ctrl(priv, 1,
|
|
bss_conf->beacon_int);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BSSID) {
|
|
bool activate = !is_zero_ether_addr(bss_conf->bssid);
|
|
lbtf_set_bssid(priv, activate, bss_conf->bssid);
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_ERP_PREAMBLE) {
|
|
if (bss_conf->use_short_preamble)
|
|
priv->preamble = CMD_TYPE_SHORT_PREAMBLE;
|
|
else
|
|
priv->preamble = CMD_TYPE_LONG_PREAMBLE;
|
|
lbtf_set_radio_control(priv);
|
|
}
|
|
|
|
lbtf_deb_leave(LBTF_DEB_MACOPS);
|
|
}
|
|
|
|
static int lbtf_op_get_survey(struct ieee80211_hw *hw, int idx,
|
|
struct survey_info *survey)
|
|
{
|
|
struct lbtf_private *priv = hw->priv;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
|
|
if (idx != 0)
|
|
return -ENOENT;
|
|
|
|
survey->channel = conf->chandef.chan;
|
|
survey->filled = SURVEY_INFO_NOISE_DBM;
|
|
survey->noise = priv->noise;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct ieee80211_ops lbtf_ops = {
|
|
.tx = lbtf_op_tx,
|
|
.start = lbtf_op_start,
|
|
.stop = lbtf_op_stop,
|
|
.add_interface = lbtf_op_add_interface,
|
|
.remove_interface = lbtf_op_remove_interface,
|
|
.config = lbtf_op_config,
|
|
.prepare_multicast = lbtf_op_prepare_multicast,
|
|
.configure_filter = lbtf_op_configure_filter,
|
|
.bss_info_changed = lbtf_op_bss_info_changed,
|
|
.get_survey = lbtf_op_get_survey,
|
|
};
|
|
|
|
int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_rx_status stats;
|
|
struct rxpd *prxpd;
|
|
int need_padding;
|
|
unsigned int flags;
|
|
struct ieee80211_hdr *hdr;
|
|
|
|
lbtf_deb_enter(LBTF_DEB_RX);
|
|
|
|
prxpd = (struct rxpd *) skb->data;
|
|
|
|
memset(&stats, 0, sizeof(stats));
|
|
if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
|
|
stats.flag |= RX_FLAG_FAILED_FCS_CRC;
|
|
stats.freq = priv->cur_freq;
|
|
stats.band = IEEE80211_BAND_2GHZ;
|
|
stats.signal = prxpd->snr;
|
|
priv->noise = prxpd->nf;
|
|
/* Marvell rate index has a hole at value 4 */
|
|
if (prxpd->rx_rate > 4)
|
|
--prxpd->rx_rate;
|
|
stats.rate_idx = prxpd->rx_rate;
|
|
skb_pull(skb, sizeof(struct rxpd));
|
|
|
|
hdr = (struct ieee80211_hdr *)skb->data;
|
|
flags = le32_to_cpu(*(__le32 *)(skb->data + 4));
|
|
|
|
need_padding = ieee80211_is_data_qos(hdr->frame_control);
|
|
need_padding ^= ieee80211_has_a4(hdr->frame_control);
|
|
need_padding ^= ieee80211_is_data_qos(hdr->frame_control) &&
|
|
(*ieee80211_get_qos_ctl(hdr) &
|
|
IEEE80211_QOS_CTL_A_MSDU_PRESENT);
|
|
|
|
if (need_padding) {
|
|
memmove(skb->data + 2, skb->data, skb->len);
|
|
skb_reserve(skb, 2);
|
|
}
|
|
|
|
memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats));
|
|
|
|
lbtf_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
|
|
skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
|
|
lbtf_deb_hex(LBTF_DEB_RX, "RX Data", skb->data,
|
|
min_t(unsigned int, skb->len, 100));
|
|
|
|
ieee80211_rx_irqsafe(priv->hw, skb);
|
|
|
|
lbtf_deb_leave(LBTF_DEB_RX);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbtf_rx);
|
|
|
|
/**
|
|
* lbtf_add_card: Add and initialize the card, no fw upload yet.
|
|
*
|
|
* @card A pointer to card
|
|
*
|
|
* Returns: pointer to struct lbtf_priv.
|
|
*/
|
|
struct lbtf_private *lbtf_add_card(void *card, struct device *dmdev)
|
|
{
|
|
struct ieee80211_hw *hw;
|
|
struct lbtf_private *priv = NULL;
|
|
|
|
lbtf_deb_enter(LBTF_DEB_MAIN);
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(struct lbtf_private), &lbtf_ops);
|
|
if (!hw)
|
|
goto done;
|
|
|
|
priv = hw->priv;
|
|
if (lbtf_init_adapter(priv))
|
|
goto err_init_adapter;
|
|
|
|
priv->hw = hw;
|
|
priv->card = card;
|
|
priv->tx_skb = NULL;
|
|
|
|
hw->queues = 1;
|
|
hw->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING;
|
|
hw->extra_tx_headroom = sizeof(struct txpd);
|
|
memcpy(priv->channels, lbtf_channels, sizeof(lbtf_channels));
|
|
memcpy(priv->rates, lbtf_rates, sizeof(lbtf_rates));
|
|
priv->band.n_bitrates = ARRAY_SIZE(lbtf_rates);
|
|
priv->band.bitrates = priv->rates;
|
|
priv->band.n_channels = ARRAY_SIZE(lbtf_channels);
|
|
priv->band.channels = priv->channels;
|
|
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_ADHOC);
|
|
skb_queue_head_init(&priv->bc_ps_buf);
|
|
|
|
SET_IEEE80211_DEV(hw, dmdev);
|
|
|
|
INIT_WORK(&priv->cmd_work, lbtf_cmd_work);
|
|
INIT_WORK(&priv->tx_work, lbtf_tx_work);
|
|
if (ieee80211_register_hw(hw))
|
|
goto err_init_adapter;
|
|
|
|
goto done;
|
|
|
|
err_init_adapter:
|
|
lbtf_free_adapter(priv);
|
|
ieee80211_free_hw(hw);
|
|
priv = NULL;
|
|
|
|
done:
|
|
lbtf_deb_leave_args(LBTF_DEB_MAIN, "priv %p", priv);
|
|
return priv;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbtf_add_card);
|
|
|
|
|
|
int lbtf_remove_card(struct lbtf_private *priv)
|
|
{
|
|
struct ieee80211_hw *hw = priv->hw;
|
|
|
|
lbtf_deb_enter(LBTF_DEB_MAIN);
|
|
|
|
priv->surpriseremoved = 1;
|
|
del_timer(&priv->command_timer);
|
|
lbtf_free_adapter(priv);
|
|
priv->hw = NULL;
|
|
ieee80211_unregister_hw(hw);
|
|
ieee80211_free_hw(hw);
|
|
|
|
lbtf_deb_leave(LBTF_DEB_MAIN);
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbtf_remove_card);
|
|
|
|
void lbtf_send_tx_feedback(struct lbtf_private *priv, u8 retrycnt, u8 fail)
|
|
{
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
|
|
|
|
ieee80211_tx_info_clear_status(info);
|
|
/*
|
|
* Commented out, otherwise we never go beyond 1Mbit/s using mac80211
|
|
* default pid rc algorithm.
|
|
*
|
|
* info->status.retry_count = MRVL_DEFAULT_RETRIES - retrycnt;
|
|
*/
|
|
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !fail)
|
|
info->flags |= IEEE80211_TX_STAT_ACK;
|
|
skb_pull(priv->tx_skb, sizeof(struct txpd));
|
|
ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
|
|
priv->tx_skb = NULL;
|
|
if (!priv->skb_to_tx && skb_queue_empty(&priv->bc_ps_buf))
|
|
ieee80211_wake_queues(priv->hw);
|
|
else
|
|
queue_work(lbtf_wq, &priv->tx_work);
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbtf_send_tx_feedback);
|
|
|
|
void lbtf_bcn_sent(struct lbtf_private *priv)
|
|
{
|
|
struct sk_buff *skb = NULL;
|
|
|
|
if (priv->vif->type != NL80211_IFTYPE_AP)
|
|
return;
|
|
|
|
if (skb_queue_empty(&priv->bc_ps_buf)) {
|
|
bool tx_buff_bc = false;
|
|
|
|
while ((skb = ieee80211_get_buffered_bc(priv->hw, priv->vif))) {
|
|
skb_queue_tail(&priv->bc_ps_buf, skb);
|
|
tx_buff_bc = true;
|
|
}
|
|
if (tx_buff_bc) {
|
|
ieee80211_stop_queues(priv->hw);
|
|
queue_work(lbtf_wq, &priv->tx_work);
|
|
}
|
|
}
|
|
|
|
skb = ieee80211_beacon_get(priv->hw, priv->vif);
|
|
|
|
if (skb) {
|
|
lbtf_beacon_set(priv, skb);
|
|
kfree_skb(skb);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(lbtf_bcn_sent);
|
|
|
|
static int __init lbtf_init_module(void)
|
|
{
|
|
lbtf_deb_enter(LBTF_DEB_MAIN);
|
|
lbtf_wq = create_workqueue("libertastf");
|
|
if (lbtf_wq == NULL) {
|
|
printk(KERN_ERR "libertastf: couldn't create workqueue\n");
|
|
return -ENOMEM;
|
|
}
|
|
lbtf_deb_leave(LBTF_DEB_MAIN);
|
|
return 0;
|
|
}
|
|
|
|
static void __exit lbtf_exit_module(void)
|
|
{
|
|
lbtf_deb_enter(LBTF_DEB_MAIN);
|
|
destroy_workqueue(lbtf_wq);
|
|
lbtf_deb_leave(LBTF_DEB_MAIN);
|
|
}
|
|
|
|
module_init(lbtf_init_module);
|
|
module_exit(lbtf_exit_module);
|
|
|
|
MODULE_DESCRIPTION("Libertas WLAN Thinfirm Driver Library");
|
|
MODULE_AUTHOR("Cozybit Inc.");
|
|
MODULE_LICENSE("GPL");
|