diff options
Diffstat (limited to 'drivers/net/wireless/purelifi/plfxlc/mac.c')
| -rw-r--r-- | drivers/net/wireless/purelifi/plfxlc/mac.c | 754 |
1 files changed, 754 insertions, 0 deletions
diff --git a/drivers/net/wireless/purelifi/plfxlc/mac.c b/drivers/net/wireless/purelifi/plfxlc/mac.c new file mode 100644 index 000000000000..d3cdffbded69 --- /dev/null +++ b/drivers/net/wireless/purelifi/plfxlc/mac.c @@ -0,0 +1,754 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021 pureLiFi + */ + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/slab.h> +#include <linux/usb.h> +#include <linux/gpio.h> +#include <linux/jiffies.h> +#include <net/ieee80211_radiotap.h> + +#include "chip.h" +#include "mac.h" +#include "usb.h" + +static const struct ieee80211_rate plfxlc_rates[] = { + { .bitrate = 10, + .hw_value = PURELIFI_CCK_RATE_1M, + .flags = 0 }, + { .bitrate = 20, + .hw_value = PURELIFI_CCK_RATE_2M, + .hw_value_short = PURELIFI_CCK_RATE_2M + | PURELIFI_CCK_PREA_SHORT, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 55, + .hw_value = PURELIFI_CCK_RATE_5_5M, + .hw_value_short = PURELIFI_CCK_RATE_5_5M + | PURELIFI_CCK_PREA_SHORT, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 110, + .hw_value = PURELIFI_CCK_RATE_11M, + .hw_value_short = PURELIFI_CCK_RATE_11M + | PURELIFI_CCK_PREA_SHORT, + .flags = IEEE80211_RATE_SHORT_PREAMBLE }, + { .bitrate = 60, + .hw_value = PURELIFI_OFDM_RATE_6M, + .flags = 0 }, + { .bitrate = 90, + .hw_value = PURELIFI_OFDM_RATE_9M, + .flags = 0 }, + { .bitrate = 120, + .hw_value = PURELIFI_OFDM_RATE_12M, + .flags = 0 }, + { .bitrate = 180, + .hw_value = PURELIFI_OFDM_RATE_18M, + .flags = 0 }, + { .bitrate = 240, + .hw_value = PURELIFI_OFDM_RATE_24M, + .flags = 0 }, + { .bitrate = 360, + .hw_value = PURELIFI_OFDM_RATE_36M, + .flags = 0 }, + { .bitrate = 480, + .hw_value = PURELIFI_OFDM_RATE_48M, + .flags = 0 }, + { .bitrate = 540, + .hw_value = PURELIFI_OFDM_RATE_54M, + .flags = 0 } +}; + +static const struct ieee80211_channel plfxlc_channels[] = { + { .center_freq = 2412, .hw_value = 1 }, + { .center_freq = 2417, .hw_value = 2 }, + { .center_freq = 2422, .hw_value = 3 }, + { .center_freq = 2427, .hw_value = 4 }, + { .center_freq = 2432, .hw_value = 5 }, + { .center_freq = 2437, .hw_value = 6 }, + { .center_freq = 2442, .hw_value = 7 }, + { .center_freq = 2447, .hw_value = 8 }, + { .center_freq = 2452, .hw_value = 9 }, + { .center_freq = 2457, .hw_value = 10 }, + { .center_freq = 2462, .hw_value = 11 }, + { .center_freq = 2467, .hw_value = 12 }, + { .center_freq = 2472, .hw_value = 13 }, + { .center_freq = 2484, .hw_value = 14 }, +}; + +int plfxlc_mac_preinit_hw(struct ieee80211_hw *hw, const u8 *hw_address) +{ + SET_IEEE80211_PERM_ADDR(hw, hw_address); + return 0; +} + +int plfxlc_mac_init_hw(struct ieee80211_hw *hw) +{ + struct plfxlc_mac *mac = plfxlc_hw_mac(hw); + struct plfxlc_chip *chip = &mac->chip; + int r; + + r = plfxlc_chip_init_hw(chip); + if (r) { + dev_warn(plfxlc_mac_dev(mac), "init hw failed (%d)\n", r); + return r; + } + + dev_dbg(plfxlc_mac_dev(mac), "irq_disabled (%d)\n", irqs_disabled()); + regulatory_hint(hw->wiphy, "00"); + return r; +} + +void plfxlc_mac_release(struct plfxlc_mac *mac) +{ + plfxlc_chip_release(&mac->chip); + lockdep_assert_held(&mac->lock); +} + +int plfxlc_op_start(struct ieee80211_hw *hw) +{ + plfxlc_hw_mac(hw)->chip.usb.initialized = 1; + return 0; +} + +void plfxlc_op_stop(struct ieee80211_hw *hw) +{ + struct plfxlc_mac *mac = plfxlc_hw_mac(hw); + + clear_bit(PURELIFI_DEVICE_RUNNING, &mac->flags); +} + +int plfxlc_restore_settings(struct plfxlc_mac *mac) +{ + int beacon_interval, beacon_period; + struct sk_buff *beacon; + + spin_lock_irq(&mac->lock); + beacon_interval = mac->beacon.interval; + beacon_period = mac->beacon.period; + spin_unlock_irq(&mac->lock); + + if (mac->type != NL80211_IFTYPE_ADHOC) + return 0; + + if (mac->vif) { + beacon = ieee80211_beacon_get(mac->hw, mac->vif, 0); + if (beacon) { + /*beacon is hardcoded in firmware */ + kfree_skb(beacon); + /* Returned skb is used only once and lowlevel + * driver is responsible for freeing it. + */ + } + } + + plfxlc_set_beacon_interval(&mac->chip, beacon_interval, + beacon_period, mac->type); + + spin_lock_irq(&mac->lock); + mac->beacon.last_update = jiffies; + spin_unlock_irq(&mac->lock); + + return 0; +} + +static void plfxlc_mac_tx_status(struct ieee80211_hw *hw, + struct sk_buff *skb, + int ackssi, + struct tx_status *tx_status) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + int success = 1; + + ieee80211_tx_info_clear_status(info); + if (tx_status) + success = !tx_status->failure; + + if (success) + info->flags |= IEEE80211_TX_STAT_ACK; + else + info->flags &= ~IEEE80211_TX_STAT_ACK; + + info->status.ack_signal = 50; + ieee80211_tx_status_irqsafe(hw, skb); +} + +void plfxlc_mac_tx_to_dev(struct sk_buff *skb, int error) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hw *hw = info->rate_driver_data[0]; + struct plfxlc_mac *mac = plfxlc_hw_mac(hw); + struct sk_buff_head *q = NULL; + + ieee80211_tx_info_clear_status(info); + skb_pull(skb, sizeof(struct plfxlc_ctrlset)); + + if (unlikely(error || + (info->flags & IEEE80211_TX_CTL_NO_ACK))) { + ieee80211_tx_status_irqsafe(hw, skb); + return; + } + + q = &mac->ack_wait_queue; + + skb_queue_tail(q, skb); + while (skb_queue_len(q)/* > PURELIFI_MAC_MAX_ACK_WAITERS*/) { + plfxlc_mac_tx_status(hw, skb_dequeue(q), + mac->ack_pending ? + mac->ack_signal : 0, + NULL); + mac->ack_pending = 0; + } +} + +static int plfxlc_fill_ctrlset(struct plfxlc_mac *mac, struct sk_buff *skb) +{ + unsigned int frag_len = skb->len; + struct plfxlc_ctrlset *cs; + u32 temp_payload_len = 0; + unsigned int tmp; + u32 temp_len = 0; + + if (skb_headroom(skb) < sizeof(struct plfxlc_ctrlset)) { + dev_dbg(plfxlc_mac_dev(mac), "Not enough hroom(1)\n"); + return 1; + } + + cs = (void *)skb_push(skb, sizeof(struct plfxlc_ctrlset)); + temp_payload_len = frag_len; + temp_len = temp_payload_len + + sizeof(struct plfxlc_ctrlset) - + sizeof(cs->id) - sizeof(cs->len); + + /* Data packet lengths must be multiple of four bytes and must + * not be a multiple of 512 bytes. First, it is attempted to + * append the data packet in the tailroom of the skb. In rare + * occasions, the tailroom is too small. In this case, the + * content of the packet is shifted into the headroom of the skb + * by memcpy. Headroom is allocated at startup (below in this + * file). Therefore, there will be always enough headroom. The + * call skb_headroom is an additional safety which might be + * dropped. + */ + /* check if 32 bit aligned and align data */ + tmp = skb->len & 3; + if (tmp) { + if (skb_tailroom(skb) < (3 - tmp)) { + if (skb_headroom(skb) >= 4 - tmp) { + u8 len; + u8 *src_pt; + u8 *dest_pt; + + len = skb->len; + src_pt = skb->data; + dest_pt = skb_push(skb, 4 - tmp); + memmove(dest_pt, src_pt, len); + } else { + return -ENOBUFS; + } + } else { + skb_put(skb, 4 - tmp); + } + temp_len += 4 - tmp; + } + + /* check if not multiple of 512 and align data */ + tmp = skb->len & 0x1ff; + if (!tmp) { + if (skb_tailroom(skb) < 4) { + if (skb_headroom(skb) >= 4) { + u8 len = skb->len; + u8 *src_pt = skb->data; + u8 *dest_pt = skb_push(skb, 4); + + memmove(dest_pt, src_pt, len); + } else { + /* should never happen because + * sufficient headroom was reserved + */ + return -ENOBUFS; + } + } else { + skb_put(skb, 4); + } + temp_len += 4; + } + + cs->id = cpu_to_be32(USB_REQ_DATA_TX); + cs->len = cpu_to_be32(temp_len); + cs->payload_len_nw = cpu_to_be32(temp_payload_len); + + return 0; +} + +static void plfxlc_op_tx(struct ieee80211_hw *hw, + struct ieee80211_tx_control *control, + struct sk_buff *skb) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct plfxlc_header *plhdr = (void *)skb->data; + struct plfxlc_mac *mac = plfxlc_hw_mac(hw); + struct plfxlc_usb *usb = &mac->chip.usb; + unsigned long flags; + int r; + + r = plfxlc_fill_ctrlset(mac, skb); + if (r) + goto fail; + + info->rate_driver_data[0] = hw; + + if (plhdr->frametype == IEEE80211_FTYPE_DATA) { + u8 *dst_mac = plhdr->dmac; + u8 sidx; + bool found = false; + struct plfxlc_usb_tx *tx = &usb->tx; + + for (sidx = 0; sidx < MAX_STA_NUM; sidx++) { + if (!(tx->station[sidx].flag & STATION_CONNECTED_FLAG)) + continue; + if (memcmp(tx->station[sidx].mac, dst_mac, ETH_ALEN)) + continue; + found = true; + break; + } + + /* Default to broadcast address for unknown MACs */ + if (!found) + sidx = STA_BROADCAST_INDEX; + + /* Stop OS from sending packets, if the queue is half full */ + if (skb_queue_len(&tx->station[sidx].data_list) > 60) + ieee80211_stop_queues(plfxlc_usb_to_hw(usb)); + + /* Schedule packet for transmission if queue is not full */ + if (skb_queue_len(&tx->station[sidx].data_list) > 256) + goto fail; + skb_queue_tail(&tx->station[sidx].data_list, skb); + plfxlc_send_packet_from_data_queue(usb); + + } else { + spin_lock_irqsave(&usb->tx.lock, flags); + r = plfxlc_usb_wreq_async(&mac->chip.usb, skb->data, skb->len, + USB_REQ_DATA_TX, plfxlc_tx_urb_complete, skb); + spin_unlock_irqrestore(&usb->tx.lock, flags); + if (r) + goto fail; + } + return; + +fail: + dev_kfree_skb(skb); +} + +static int plfxlc_filter_ack(struct ieee80211_hw *hw, struct ieee80211_hdr *rx_hdr, + struct ieee80211_rx_status *stats) +{ + struct plfxlc_mac *mac = plfxlc_hw_mac(hw); + struct sk_buff_head *q; + int i, position = 0; + unsigned long flags; + struct sk_buff *skb; + bool found = false; + + if (!ieee80211_is_ack(rx_hdr->frame_control)) + return 0; + + dev_dbg(plfxlc_mac_dev(mac), "ACK Received\n"); + + /* code based on zy driver, this logic may need fix */ + q = &mac->ack_wait_queue; + spin_lock_irqsave(&q->lock, flags); + + skb_queue_walk(q, skb) { + struct ieee80211_hdr *tx_hdr; + + position++; + + if (mac->ack_pending && skb_queue_is_first(q, skb)) + continue; + if (mac->ack_pending == 0) + break; + + tx_hdr = (struct ieee80211_hdr *)skb->data; + if (likely(ether_addr_equal(tx_hdr->addr2, rx_hdr->addr1))) { + found = 1; + break; + } + } + + if (found) { + for (i = 1; i < position; i++) + skb = __skb_dequeue(q); + if (i == position) { + plfxlc_mac_tx_status(hw, skb, + mac->ack_pending ? + mac->ack_signal : 0, + NULL); + mac->ack_pending = 0; + } + + mac->ack_pending = skb_queue_len(q) ? 1 : 0; + mac->ack_signal = stats->signal; + } + + spin_unlock_irqrestore(&q->lock, flags); + return 1; +} + +int plfxlc_mac_rx(struct ieee80211_hw *hw, const u8 *buffer, + unsigned int length) +{ + struct plfxlc_mac *mac = plfxlc_hw_mac(hw); + struct ieee80211_rx_status stats; + const struct rx_status *status; + unsigned int payload_length; + struct plfxlc_usb_tx *tx; + struct sk_buff *skb; + int need_padding; + __le16 fc; + int sidx; + + /* Packet blockade during disabled interface. */ + if (!mac->vif) + return 0; + + status = (struct rx_status *)buffer; + + memset(&stats, 0, sizeof(stats)); + + stats.flag = 0; + stats.freq = 2412; + stats.band = NL80211_BAND_LC; + mac->rssi = -15 * be16_to_cpu(status->rssi) / 10; + + stats.signal = mac->rssi; + + if (status->rate_idx > 7) + stats.rate_idx = 0; + else + stats.rate_idx = status->rate_idx; + + mac->crc_errors = be64_to_cpu(status->crc_error_count); + + /* TODO bad frame check for CRC error*/ + if (plfxlc_filter_ack(hw, (struct ieee80211_hdr *)buffer, &stats) && + !mac->pass_ctrl) + return 0; + + buffer += sizeof(struct rx_status); + payload_length = get_unaligned_be32(buffer); + + if (payload_length > 1560) { + dev_err(plfxlc_mac_dev(mac), " > MTU %u\n", payload_length); + return 0; + } + buffer += sizeof(u32); + + fc = get_unaligned((__le16 *)buffer); + need_padding = ieee80211_is_data_qos(fc) ^ ieee80211_has_a4(fc); + + tx = &mac->chip.usb.tx; + + for (sidx = 0; sidx < MAX_STA_NUM - 1; sidx++) { + if (memcmp(&buffer[10], tx->station[sidx].mac, ETH_ALEN)) + continue; + if (tx->station[sidx].flag & STATION_CONNECTED_FLAG) { + tx->station[sidx].flag |= STATION_HEARTBEAT_FLAG; + break; + } + } + + if (sidx == MAX_STA_NUM - 1) { + for (sidx = 0; sidx < MAX_STA_NUM - 1; sidx++) { + if (tx->station[sidx].flag & STATION_CONNECTED_FLAG) + continue; + memcpy(tx->station[sidx].mac, &buffer[10], ETH_ALEN); + tx->station[sidx].flag |= STATION_CONNECTED_FLAG; + tx->station[sidx].flag |= STATION_HEARTBEAT_FLAG; + break; + } + } + + switch (buffer[0]) { + case IEEE80211_STYPE_PROBE_REQ: + dev_dbg(plfxlc_mac_dev(mac), "Probe request\n"); + break; + case IEEE80211_STYPE_ASSOC_REQ: + dev_dbg(plfxlc_mac_dev(mac), "Association request\n"); + break; + case IEEE80211_STYPE_AUTH: + dev_dbg(plfxlc_mac_dev(mac), "Authentication req\n"); + break; + case IEEE80211_FTYPE_DATA: + dev_dbg(plfxlc_mac_dev(mac), "802.11 data frame\n"); + break; + } + + skb = dev_alloc_skb(payload_length + (need_padding ? 2 : 0)); + if (!skb) + return -ENOMEM; + + if (need_padding) + /* Make sure that the payload data is 4 byte aligned. */ + skb_reserve(skb, 2); + + 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; +} |