755 lines
19 KiB
C
755 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2021 pureLiFi
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*/
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/gpio.h>
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#include <linux/jiffies.h>
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#include <net/ieee80211_radiotap.h>
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#include "chip.h"
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#include "mac.h"
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#include "usb.h"
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static const struct ieee80211_rate plfxlc_rates[] = {
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{ .bitrate = 10,
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.hw_value = PURELIFI_CCK_RATE_1M,
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.flags = 0 },
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{ .bitrate = 20,
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.hw_value = PURELIFI_CCK_RATE_2M,
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.hw_value_short = PURELIFI_CCK_RATE_2M
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| PURELIFI_CCK_PREA_SHORT,
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.flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 55,
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.hw_value = PURELIFI_CCK_RATE_5_5M,
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.hw_value_short = PURELIFI_CCK_RATE_5_5M
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| PURELIFI_CCK_PREA_SHORT,
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.flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 110,
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.hw_value = PURELIFI_CCK_RATE_11M,
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.hw_value_short = PURELIFI_CCK_RATE_11M
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| PURELIFI_CCK_PREA_SHORT,
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.flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 60,
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.hw_value = PURELIFI_OFDM_RATE_6M,
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.flags = 0 },
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{ .bitrate = 90,
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.hw_value = PURELIFI_OFDM_RATE_9M,
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.flags = 0 },
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{ .bitrate = 120,
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.hw_value = PURELIFI_OFDM_RATE_12M,
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.flags = 0 },
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{ .bitrate = 180,
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.hw_value = PURELIFI_OFDM_RATE_18M,
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.flags = 0 },
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{ .bitrate = 240,
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.hw_value = PURELIFI_OFDM_RATE_24M,
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.flags = 0 },
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{ .bitrate = 360,
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.hw_value = PURELIFI_OFDM_RATE_36M,
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.flags = 0 },
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{ .bitrate = 480,
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.hw_value = PURELIFI_OFDM_RATE_48M,
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.flags = 0 },
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{ .bitrate = 540,
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.hw_value = PURELIFI_OFDM_RATE_54M,
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.flags = 0 }
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};
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static const struct ieee80211_channel plfxlc_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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int plfxlc_mac_preinit_hw(struct ieee80211_hw *hw, const u8 *hw_address)
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{
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SET_IEEE80211_PERM_ADDR(hw, hw_address);
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return 0;
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}
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int plfxlc_mac_init_hw(struct ieee80211_hw *hw)
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{
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struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
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struct plfxlc_chip *chip = &mac->chip;
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int r;
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r = plfxlc_chip_init_hw(chip);
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if (r) {
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dev_warn(plfxlc_mac_dev(mac), "init hw failed (%d)\n", r);
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return r;
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}
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dev_dbg(plfxlc_mac_dev(mac), "irq_disabled (%d)\n", irqs_disabled());
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regulatory_hint(hw->wiphy, "00");
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return r;
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}
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void plfxlc_mac_release(struct plfxlc_mac *mac)
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{
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plfxlc_chip_release(&mac->chip);
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lockdep_assert_held(&mac->lock);
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}
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int plfxlc_op_start(struct ieee80211_hw *hw)
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{
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plfxlc_hw_mac(hw)->chip.usb.initialized = 1;
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return 0;
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}
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void plfxlc_op_stop(struct ieee80211_hw *hw)
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{
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struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
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clear_bit(PURELIFI_DEVICE_RUNNING, &mac->flags);
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}
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int plfxlc_restore_settings(struct plfxlc_mac *mac)
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{
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int beacon_interval, beacon_period;
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struct sk_buff *beacon;
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spin_lock_irq(&mac->lock);
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beacon_interval = mac->beacon.interval;
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beacon_period = mac->beacon.period;
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spin_unlock_irq(&mac->lock);
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if (mac->type != NL80211_IFTYPE_ADHOC)
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return 0;
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if (mac->vif) {
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beacon = ieee80211_beacon_get(mac->hw, mac->vif, 0);
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if (beacon) {
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/*beacon is hardcoded in firmware */
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kfree_skb(beacon);
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/* Returned skb is used only once and lowlevel
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* driver is responsible for freeing it.
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*/
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}
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}
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plfxlc_set_beacon_interval(&mac->chip, beacon_interval,
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beacon_period, mac->type);
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spin_lock_irq(&mac->lock);
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mac->beacon.last_update = jiffies;
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spin_unlock_irq(&mac->lock);
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return 0;
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}
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static void plfxlc_mac_tx_status(struct ieee80211_hw *hw,
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struct sk_buff *skb,
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int ackssi,
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struct tx_status *tx_status)
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{
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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int success = 1;
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ieee80211_tx_info_clear_status(info);
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if (tx_status)
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success = !tx_status->failure;
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if (success)
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info->flags |= IEEE80211_TX_STAT_ACK;
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else
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info->flags &= ~IEEE80211_TX_STAT_ACK;
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info->status.ack_signal = 50;
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ieee80211_tx_status_irqsafe(hw, skb);
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}
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void plfxlc_mac_tx_to_dev(struct sk_buff *skb, int error)
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{
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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struct ieee80211_hw *hw = info->rate_driver_data[0];
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struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
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struct sk_buff_head *q = NULL;
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ieee80211_tx_info_clear_status(info);
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skb_pull(skb, sizeof(struct plfxlc_ctrlset));
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if (unlikely(error ||
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(info->flags & IEEE80211_TX_CTL_NO_ACK))) {
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ieee80211_tx_status_irqsafe(hw, skb);
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return;
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}
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q = &mac->ack_wait_queue;
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skb_queue_tail(q, skb);
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while (skb_queue_len(q)/* > PURELIFI_MAC_MAX_ACK_WAITERS*/) {
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plfxlc_mac_tx_status(hw, skb_dequeue(q),
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mac->ack_pending ?
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mac->ack_signal : 0,
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NULL);
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mac->ack_pending = 0;
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}
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}
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static int plfxlc_fill_ctrlset(struct plfxlc_mac *mac, struct sk_buff *skb)
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{
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unsigned int frag_len = skb->len;
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struct plfxlc_ctrlset *cs;
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u32 temp_payload_len = 0;
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unsigned int tmp;
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u32 temp_len = 0;
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if (skb_headroom(skb) < sizeof(struct plfxlc_ctrlset)) {
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dev_dbg(plfxlc_mac_dev(mac), "Not enough hroom(1)\n");
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return 1;
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}
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cs = (void *)skb_push(skb, sizeof(struct plfxlc_ctrlset));
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temp_payload_len = frag_len;
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temp_len = temp_payload_len +
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sizeof(struct plfxlc_ctrlset) -
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sizeof(cs->id) - sizeof(cs->len);
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/* Data packet lengths must be multiple of four bytes and must
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* not be a multiple of 512 bytes. First, it is attempted to
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* append the data packet in the tailroom of the skb. In rare
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* occasions, the tailroom is too small. In this case, the
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* content of the packet is shifted into the headroom of the skb
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* by memcpy. Headroom is allocated at startup (below in this
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* file). Therefore, there will be always enough headroom. The
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* call skb_headroom is an additional safety which might be
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* dropped.
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*/
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/* check if 32 bit aligned and align data */
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tmp = skb->len & 3;
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if (tmp) {
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if (skb_tailroom(skb) < (3 - tmp)) {
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if (skb_headroom(skb) >= 4 - tmp) {
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u8 len;
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u8 *src_pt;
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u8 *dest_pt;
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len = skb->len;
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src_pt = skb->data;
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dest_pt = skb_push(skb, 4 - tmp);
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memmove(dest_pt, src_pt, len);
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} else {
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return -ENOBUFS;
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}
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} else {
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skb_put(skb, 4 - tmp);
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}
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temp_len += 4 - tmp;
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}
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/* check if not multiple of 512 and align data */
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tmp = skb->len & 0x1ff;
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if (!tmp) {
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if (skb_tailroom(skb) < 4) {
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if (skb_headroom(skb) >= 4) {
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u8 len = skb->len;
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u8 *src_pt = skb->data;
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u8 *dest_pt = skb_push(skb, 4);
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memmove(dest_pt, src_pt, len);
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} else {
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/* should never happen because
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* sufficient headroom was reserved
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*/
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return -ENOBUFS;
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}
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} else {
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skb_put(skb, 4);
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}
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temp_len += 4;
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}
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cs->id = cpu_to_be32(USB_REQ_DATA_TX);
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cs->len = cpu_to_be32(temp_len);
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cs->payload_len_nw = cpu_to_be32(temp_payload_len);
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return 0;
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}
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static void plfxlc_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 ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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struct plfxlc_header *plhdr = (void *)skb->data;
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struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
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struct plfxlc_usb *usb = &mac->chip.usb;
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unsigned long flags;
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int r;
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r = plfxlc_fill_ctrlset(mac, skb);
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if (r)
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goto fail;
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info->rate_driver_data[0] = hw;
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if (plhdr->frametype == IEEE80211_FTYPE_DATA) {
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u8 *dst_mac = plhdr->dmac;
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u8 sidx;
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bool found = false;
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struct plfxlc_usb_tx *tx = &usb->tx;
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for (sidx = 0; sidx < MAX_STA_NUM; sidx++) {
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if (!(tx->station[sidx].flag & STATION_CONNECTED_FLAG))
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continue;
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if (memcmp(tx->station[sidx].mac, dst_mac, ETH_ALEN))
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continue;
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found = true;
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break;
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}
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/* Default to broadcast address for unknown MACs */
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if (!found)
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sidx = STA_BROADCAST_INDEX;
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/* Stop OS from sending packets, if the queue is half full */
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if (skb_queue_len(&tx->station[sidx].data_list) > 60)
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ieee80211_stop_queues(plfxlc_usb_to_hw(usb));
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/* Schedule packet for transmission if queue is not full */
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if (skb_queue_len(&tx->station[sidx].data_list) > 256)
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goto fail;
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skb_queue_tail(&tx->station[sidx].data_list, skb);
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plfxlc_send_packet_from_data_queue(usb);
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} else {
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spin_lock_irqsave(&usb->tx.lock, flags);
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r = plfxlc_usb_wreq_async(&mac->chip.usb, skb->data, skb->len,
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USB_REQ_DATA_TX, plfxlc_tx_urb_complete, skb);
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spin_unlock_irqrestore(&usb->tx.lock, flags);
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if (r)
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goto fail;
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}
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return;
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fail:
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dev_kfree_skb(skb);
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}
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static int plfxlc_filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr,
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struct ieee80211_rx_status *stats)
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{
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struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
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struct sk_buff_head *q;
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int i, position = 0;
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unsigned long flags;
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struct sk_buff *skb;
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bool found = false;
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if (!ieee80211_is_ack(rx_hdr->frame_control))
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return 0;
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dev_dbg(plfxlc_mac_dev(mac), "ACK Received\n");
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/* code based on zy driver, this logic may need fix */
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q = &mac->ack_wait_queue;
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spin_lock_irqsave(&q->lock, flags);
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skb_queue_walk(q, skb) {
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struct ieee80211_hdr *tx_hdr;
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position++;
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if (mac->ack_pending && skb_queue_is_first(q, skb))
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continue;
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if (mac->ack_pending == 0)
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break;
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tx_hdr = (struct ieee80211_hdr *)skb->data;
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if (likely(ether_addr_equal(tx_hdr->addr2, rx_hdr->addr1))) {
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found = 1;
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break;
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}
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}
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if (found) {
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for (i = 1; i < position; i++)
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skb = __skb_dequeue(q);
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if (i == position) {
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plfxlc_mac_tx_status(hw, skb,
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mac->ack_pending ?
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mac->ack_signal : 0,
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NULL);
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mac->ack_pending = 0;
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}
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mac->ack_pending = skb_queue_len(q) ? 1 : 0;
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mac->ack_signal = stats->signal;
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}
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spin_unlock_irqrestore(&q->lock, flags);
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return 1;
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}
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int plfxlc_mac_rx(struct ieee80211_hw *hw, const u8 *buffer,
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unsigned int length)
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{
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struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
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struct ieee80211_rx_status stats;
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const struct rx_status *status;
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unsigned int payload_length;
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struct plfxlc_usb_tx *tx;
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struct sk_buff *skb;
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int need_padding;
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__le16 fc;
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int sidx;
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/* Packet blockade during disabled interface. */
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if (!mac->vif)
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return 0;
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status = (struct rx_status *)buffer;
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memset(&stats, 0, sizeof(stats));
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stats.flag = 0;
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stats.freq = 2412;
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stats.band = NL80211_BAND_LC;
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mac->rssi = -15 * be16_to_cpu(status->rssi) / 10;
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stats.signal = mac->rssi;
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if (status->rate_idx > 7)
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stats.rate_idx = 0;
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else
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stats.rate_idx = status->rate_idx;
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mac->crc_errors = be64_to_cpu(status->crc_error_count);
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/* TODO bad frame check for CRC error*/
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if (plfxlc_filter_ack(hw, (struct ieee80211_hdr *)buffer, &stats) &&
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!mac->pass_ctrl)
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return 0;
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buffer += sizeof(struct rx_status);
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payload_length = get_unaligned_be32(buffer);
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if (payload_length > 1560) {
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dev_err(plfxlc_mac_dev(mac), " > MTU %u\n", payload_length);
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return 0;
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}
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buffer += sizeof(u32);
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fc = get_unaligned((__le16 *)buffer);
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need_padding = ieee80211_is_data_qos(fc) ^ ieee80211_has_a4(fc);
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tx = &mac->chip.usb.tx;
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for (sidx = 0; sidx < MAX_STA_NUM - 1; sidx++) {
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if (memcmp(&buffer[10], tx->station[sidx].mac, ETH_ALEN))
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continue;
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if (tx->station[sidx].flag & STATION_CONNECTED_FLAG) {
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tx->station[sidx].flag |= STATION_HEARTBEAT_FLAG;
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break;
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}
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}
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if (sidx == MAX_STA_NUM - 1) {
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for (sidx = 0; sidx < MAX_STA_NUM - 1; sidx++) {
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if (tx->station[sidx].flag & STATION_CONNECTED_FLAG)
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continue;
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memcpy(tx->station[sidx].mac, &buffer[10], ETH_ALEN);
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tx->station[sidx].flag |= STATION_CONNECTED_FLAG;
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tx->station[sidx].flag |= STATION_HEARTBEAT_FLAG;
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break;
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}
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}
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switch (buffer[0]) {
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case IEEE80211_STYPE_PROBE_REQ:
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dev_dbg(plfxlc_mac_dev(mac), "Probe request\n");
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break;
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case IEEE80211_STYPE_ASSOC_REQ:
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dev_dbg(plfxlc_mac_dev(mac), "Association request\n");
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break;
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case IEEE80211_STYPE_AUTH:
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dev_dbg(plfxlc_mac_dev(mac), "Authentication req\n");
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break;
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case IEEE80211_FTYPE_DATA:
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dev_dbg(plfxlc_mac_dev(mac), "802.11 data frame\n");
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break;
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}
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skb = dev_alloc_skb(payload_length + (need_padding ? 2 : 0));
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if (!skb)
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return -ENOMEM;
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if (need_padding)
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/* Make sure that the payload data is 4 byte aligned. */
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skb_reserve(skb, 2);
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|
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skb_put_data(skb, buffer, payload_length);
|
|
memcpy(IEEE80211_SKB_RXCB(skb), &stats, sizeof(stats));
|
|
ieee80211_rx_irqsafe(hw, skb);
|
|
return 0;
|
|
}
|
|
|
|
static int plfxlc_op_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
|
|
static const char * const iftype80211[] = {
|
|
[NL80211_IFTYPE_STATION] = "Station",
|
|
[NL80211_IFTYPE_ADHOC] = "Adhoc"
|
|
};
|
|
|
|
if (mac->type != NL80211_IFTYPE_UNSPECIFIED)
|
|
return -EOPNOTSUPP;
|
|
|
|
if (vif->type == NL80211_IFTYPE_ADHOC ||
|
|
vif->type == NL80211_IFTYPE_STATION) {
|
|
dev_dbg(plfxlc_mac_dev(mac), "%s %s\n", __func__,
|
|
iftype80211[vif->type]);
|
|
mac->type = vif->type;
|
|
mac->vif = vif;
|
|
return 0;
|
|
}
|
|
dev_dbg(plfxlc_mac_dev(mac), "unsupported iftype\n");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
static void plfxlc_op_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
|
|
|
|
mac->type = NL80211_IFTYPE_UNSPECIFIED;
|
|
mac->vif = NULL;
|
|
}
|
|
|
|
static int plfxlc_op_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#define SUPPORTED_FIF_FLAGS \
|
|
(FIF_ALLMULTI | FIF_FCSFAIL | FIF_CONTROL | \
|
|
FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)
|
|
static void plfxlc_op_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *new_flags,
|
|
u64 multicast)
|
|
{
|
|
struct plfxlc_mc_hash hash = {
|
|
.low = multicast,
|
|
.high = multicast >> 32,
|
|
};
|
|
struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
|
|
unsigned long flags;
|
|
|
|
/* Only deal with supported flags */
|
|
*new_flags &= SUPPORTED_FIF_FLAGS;
|
|
|
|
/* If multicast parameter
|
|
* (as returned by plfxlc_op_prepare_multicast)
|
|
* has changed, no bit in changed_flags is set. To handle this
|
|
* situation, we do not return if changed_flags is 0. If we do so,
|
|
* we will have some issue with IPv6 which uses multicast for link
|
|
* layer address resolution.
|
|
*/
|
|
if (*new_flags & (FIF_ALLMULTI))
|
|
plfxlc_mc_add_all(&hash);
|
|
|
|
spin_lock_irqsave(&mac->lock, flags);
|
|
mac->pass_failed_fcs = !!(*new_flags & FIF_FCSFAIL);
|
|
mac->pass_ctrl = !!(*new_flags & FIF_CONTROL);
|
|
mac->multicast_hash = hash;
|
|
spin_unlock_irqrestore(&mac->lock, flags);
|
|
|
|
/* no handling required for FIF_OTHER_BSS as we don't currently
|
|
* do BSSID filtering
|
|
*/
|
|
/* FIXME: in future it would be nice to enable the probe response
|
|
* filter (so that the driver doesn't see them) until
|
|
* FIF_BCN_PRBRESP_PROMISC is set. however due to atomicity here, we'd
|
|
* have to schedule work to enable prbresp reception, which might
|
|
* happen too late. For now we'll just listen and forward them all the
|
|
* time.
|
|
*/
|
|
}
|
|
|
|
static void plfxlc_op_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u64 changes)
|
|
{
|
|
struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
|
|
int associated;
|
|
|
|
dev_dbg(plfxlc_mac_dev(mac), "changes: %llx\n", changes);
|
|
|
|
if (mac->type != NL80211_IFTYPE_ADHOC) { /* for STATION */
|
|
associated = is_valid_ether_addr(bss_conf->bssid);
|
|
goto exit_all;
|
|
}
|
|
/* for ADHOC */
|
|
associated = true;
|
|
if (changes & BSS_CHANGED_BEACON) {
|
|
struct sk_buff *beacon = ieee80211_beacon_get(hw, vif, 0);
|
|
|
|
if (beacon) {
|
|
/*beacon is hardcoded in firmware */
|
|
kfree_skb(beacon);
|
|
/*Returned skb is used only once and
|
|
* low-level driver is
|
|
* responsible for freeing it.
|
|
*/
|
|
}
|
|
}
|
|
|
|
if (changes & BSS_CHANGED_BEACON_ENABLED) {
|
|
u16 interval = 0;
|
|
u8 period = 0;
|
|
|
|
if (bss_conf->enable_beacon) {
|
|
period = bss_conf->dtim_period;
|
|
interval = bss_conf->beacon_int;
|
|
}
|
|
|
|
spin_lock_irq(&mac->lock);
|
|
mac->beacon.period = period;
|
|
mac->beacon.interval = interval;
|
|
mac->beacon.last_update = jiffies;
|
|
spin_unlock_irq(&mac->lock);
|
|
|
|
plfxlc_set_beacon_interval(&mac->chip, interval,
|
|
period, mac->type);
|
|
}
|
|
exit_all:
|
|
spin_lock_irq(&mac->lock);
|
|
mac->associated = associated;
|
|
spin_unlock_irq(&mac->lock);
|
|
}
|
|
|
|
static int plfxlc_get_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_low_level_stats *stats)
|
|
{
|
|
stats->dot11ACKFailureCount = 0;
|
|
stats->dot11RTSFailureCount = 0;
|
|
stats->dot11FCSErrorCount = 0;
|
|
stats->dot11RTSSuccessCount = 0;
|
|
return 0;
|
|
}
|
|
|
|
static const char et_strings[][ETH_GSTRING_LEN] = {
|
|
"phy_rssi",
|
|
"phy_rx_crc_err"
|
|
};
|
|
|
|
static int plfxlc_get_et_sset_count(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif, int sset)
|
|
{
|
|
if (sset == ETH_SS_STATS)
|
|
return ARRAY_SIZE(et_strings);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void plfxlc_get_et_strings(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
u32 sset, u8 *data)
|
|
{
|
|
if (sset == ETH_SS_STATS)
|
|
memcpy(data, et_strings, sizeof(et_strings));
|
|
}
|
|
|
|
static void plfxlc_get_et_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct plfxlc_mac *mac = plfxlc_hw_mac(hw);
|
|
|
|
data[0] = mac->rssi;
|
|
data[1] = mac->crc_errors;
|
|
}
|
|
|
|
static int plfxlc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static const struct ieee80211_ops plfxlc_ops = {
|
|
.tx = plfxlc_op_tx,
|
|
.start = plfxlc_op_start,
|
|
.stop = plfxlc_op_stop,
|
|
.add_interface = plfxlc_op_add_interface,
|
|
.remove_interface = plfxlc_op_remove_interface,
|
|
.set_rts_threshold = plfxlc_set_rts_threshold,
|
|
.config = plfxlc_op_config,
|
|
.configure_filter = plfxlc_op_configure_filter,
|
|
.bss_info_changed = plfxlc_op_bss_info_changed,
|
|
.get_stats = plfxlc_get_stats,
|
|
.get_et_sset_count = plfxlc_get_et_sset_count,
|
|
.get_et_stats = plfxlc_get_et_stats,
|
|
.get_et_strings = plfxlc_get_et_strings,
|
|
};
|
|
|
|
struct ieee80211_hw *plfxlc_mac_alloc_hw(struct usb_interface *intf)
|
|
{
|
|
struct ieee80211_hw *hw;
|
|
struct plfxlc_mac *mac;
|
|
|
|
hw = ieee80211_alloc_hw(sizeof(struct plfxlc_mac), &plfxlc_ops);
|
|
if (!hw) {
|
|
dev_dbg(&intf->dev, "out of memory\n");
|
|
return NULL;
|
|
}
|
|
set_wiphy_dev(hw->wiphy, &intf->dev);
|
|
|
|
mac = plfxlc_hw_mac(hw);
|
|
memset(mac, 0, sizeof(*mac));
|
|
spin_lock_init(&mac->lock);
|
|
mac->hw = hw;
|
|
|
|
mac->type = NL80211_IFTYPE_UNSPECIFIED;
|
|
|
|
memcpy(mac->channels, plfxlc_channels, sizeof(plfxlc_channels));
|
|
memcpy(mac->rates, plfxlc_rates, sizeof(plfxlc_rates));
|
|
mac->band.n_bitrates = ARRAY_SIZE(plfxlc_rates);
|
|
mac->band.bitrates = mac->rates;
|
|
mac->band.n_channels = ARRAY_SIZE(plfxlc_channels);
|
|
mac->band.channels = mac->channels;
|
|
hw->wiphy->bands[NL80211_BAND_LC] = &mac->band;
|
|
hw->conf.chandef.width = NL80211_CHAN_WIDTH_20;
|
|
|
|
ieee80211_hw_set(hw, RX_INCLUDES_FCS);
|
|
ieee80211_hw_set(hw, SIGNAL_DBM);
|
|
ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);
|
|
ieee80211_hw_set(hw, MFP_CAPABLE);
|
|
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_ADHOC);
|
|
hw->max_signal = 100;
|
|
hw->queues = 1;
|
|
/* 4 for 32 bit alignment if no tailroom */
|
|
hw->extra_tx_headroom = sizeof(struct plfxlc_ctrlset) + 4;
|
|
/* Tell mac80211 that we support multi rate retries */
|
|
hw->max_rates = IEEE80211_TX_MAX_RATES;
|
|
hw->max_rate_tries = 18; /* 9 rates * 2 retries/rate */
|
|
|
|
skb_queue_head_init(&mac->ack_wait_queue);
|
|
mac->ack_pending = 0;
|
|
|
|
plfxlc_chip_init(&mac->chip, hw, intf);
|
|
|
|
SET_IEEE80211_DEV(hw, &intf->dev);
|
|
return hw;
|
|
}
|