| /* |
| * Atheros CARL9170 driver |
| * |
| * Driver specific definitions |
| * |
| * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> |
| * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; see the file COPYING. If not, see |
| * http://www.gnu.org/licenses/. |
| * |
| * This file incorporates work covered by the following copyright and |
| * permission notice: |
| * Copyright (c) 2007-2008 Atheros Communications, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| #ifndef __CARL9170_H |
| #define __CARL9170_H |
| |
| #include <linux/kernel.h> |
| #include <linux/firmware.h> |
| #include <linux/completion.h> |
| #include <linux/spinlock.h> |
| #include <linux/hw_random.h> |
| #include <net/cfg80211.h> |
| #include <net/mac80211.h> |
| #include <linux/usb.h> |
| #ifdef CONFIG_CARL9170_LEDS |
| #include <linux/leds.h> |
| #endif /* CONFIG_CARL9170_LEDS */ |
| #ifdef CONFIG_CARL9170_WPC |
| #include <linux/input.h> |
| #endif /* CONFIG_CARL9170_WPC */ |
| #include "eeprom.h" |
| #include "wlan.h" |
| #include "hw.h" |
| #include "fwdesc.h" |
| #include "fwcmd.h" |
| #include "../regd.h" |
| |
| #ifdef CONFIG_CARL9170_DEBUGFS |
| #include "debug.h" |
| #endif /* CONFIG_CARL9170_DEBUGFS */ |
| |
| #define CARL9170FW_NAME "carl9170-1.fw" |
| |
| #define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1) |
| |
| static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 3, 2, 1, 0 }; |
| |
| #define CARL9170_MAX_RX_BUFFER_SIZE 8192 |
| |
| enum carl9170_device_state { |
| CARL9170_UNKNOWN_STATE, |
| CARL9170_STOPPED, |
| CARL9170_IDLE, |
| CARL9170_STARTED, |
| }; |
| |
| #define WME_BA_BMP_SIZE 64 |
| #define CARL9170_TX_USER_RATE_TRIES 3 |
| |
| #define TID_TO_WME_AC(_tid) \ |
| ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \ |
| (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \ |
| (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \ |
| IEEE80211_AC_VO) |
| |
| #define SEQ_DIFF(_start, _seq) \ |
| (((_start) - (_seq)) & 0x0fff) |
| #define SEQ_PREV(_seq) \ |
| (((_seq) - 1) & 0x0fff) |
| #define SEQ_NEXT(_seq) \ |
| (((_seq) + 1) & 0x0fff) |
| #define BAW_WITHIN(_start, _bawsz, _seqno) \ |
| ((((_seqno) - (_start)) & 0xfff) < (_bawsz)) |
| |
| enum carl9170_tid_state { |
| CARL9170_TID_STATE_INVALID, |
| CARL9170_TID_STATE_KILLED, |
| CARL9170_TID_STATE_SHUTDOWN, |
| CARL9170_TID_STATE_SUSPEND, |
| CARL9170_TID_STATE_PROGRESS, |
| CARL9170_TID_STATE_IDLE, |
| CARL9170_TID_STATE_XMIT, |
| }; |
| |
| #define CARL9170_BAW_BITS (2 * WME_BA_BMP_SIZE) |
| #define CARL9170_BAW_SIZE (BITS_TO_LONGS(CARL9170_BAW_BITS)) |
| #define CARL9170_BAW_LEN (DIV_ROUND_UP(CARL9170_BAW_BITS, BITS_PER_BYTE)) |
| |
| struct carl9170_sta_tid { |
| /* must be the first entry! */ |
| struct list_head list; |
| |
| /* temporary list for RCU unlink procedure */ |
| struct list_head tmp_list; |
| |
| /* lock for the following data structures */ |
| spinlock_t lock; |
| |
| unsigned int counter; |
| enum carl9170_tid_state state; |
| u8 tid; /* TID number ( 0 - 15 ) */ |
| u16 max; /* max. AMPDU size */ |
| |
| u16 snx; /* awaiting _next_ frame */ |
| u16 hsn; /* highest _queued_ sequence */ |
| u16 bsn; /* base of the tx/agg bitmap */ |
| unsigned long bitmap[CARL9170_BAW_SIZE]; |
| |
| /* Preaggregation reorder queue */ |
| struct sk_buff_head queue; |
| }; |
| |
| #define CARL9170_QUEUE_TIMEOUT 256 |
| #define CARL9170_BUMP_QUEUE 1000 |
| #define CARL9170_TX_TIMEOUT 2500 |
| #define CARL9170_JANITOR_DELAY 128 |
| #define CARL9170_QUEUE_STUCK_TIMEOUT 5500 |
| #define CARL9170_STAT_WORK 30000 |
| |
| #define CARL9170_NUM_TX_AGG_MAX 30 |
| |
| /* |
| * Tradeoff between stability/latency and speed. |
| * |
| * AR9170_TXQ_DEPTH is devised by dividing the amount of available |
| * tx buffers with the size of a full ethernet frame + overhead. |
| * |
| * Naturally: The higher the limit, the faster the device CAN send. |
| * However, even a slight over-commitment at the wrong time and the |
| * hardware is doomed to send all already-queued frames at suboptimal |
| * rates. This in turn leads to an enormous amount of unsuccessful |
| * retries => Latency goes up, whereas the throughput goes down. CRASH! |
| */ |
| #define CARL9170_NUM_TX_LIMIT_HARD ((AR9170_TXQ_DEPTH * 3) / 2) |
| #define CARL9170_NUM_TX_LIMIT_SOFT (AR9170_TXQ_DEPTH) |
| |
| struct carl9170_tx_queue_stats { |
| unsigned int count; |
| unsigned int limit; |
| unsigned int len; |
| }; |
| |
| struct carl9170_vif { |
| unsigned int id; |
| struct ieee80211_vif __rcu *vif; |
| }; |
| |
| struct carl9170_vif_info { |
| struct list_head list; |
| bool active; |
| unsigned int id; |
| struct sk_buff *beacon; |
| bool enable_beacon; |
| }; |
| |
| #define AR9170_NUM_RX_URBS 16 |
| #define AR9170_NUM_RX_URBS_MUL 2 |
| #define AR9170_NUM_TX_URBS 8 |
| #define AR9170_NUM_RX_URBS_POOL (AR9170_NUM_RX_URBS_MUL * AR9170_NUM_RX_URBS) |
| |
| enum carl9170_device_features { |
| CARL9170_WPS_BUTTON = BIT(0), |
| CARL9170_ONE_LED = BIT(1), |
| }; |
| |
| #ifdef CONFIG_CARL9170_LEDS |
| struct ar9170; |
| |
| struct carl9170_led { |
| struct ar9170 *ar; |
| struct led_classdev l; |
| char name[32]; |
| unsigned int toggled; |
| bool last_state; |
| bool registered; |
| }; |
| #endif /* CONFIG_CARL9170_LEDS */ |
| |
| enum carl9170_restart_reasons { |
| CARL9170_RR_NO_REASON = 0, |
| CARL9170_RR_FATAL_FIRMWARE_ERROR, |
| CARL9170_RR_TOO_MANY_FIRMWARE_ERRORS, |
| CARL9170_RR_WATCHDOG, |
| CARL9170_RR_STUCK_TX, |
| CARL9170_RR_UNRESPONSIVE_DEVICE, |
| CARL9170_RR_COMMAND_TIMEOUT, |
| CARL9170_RR_TOO_MANY_PHY_ERRORS, |
| CARL9170_RR_LOST_RSP, |
| CARL9170_RR_INVALID_RSP, |
| CARL9170_RR_USER_REQUEST, |
| |
| __CARL9170_RR_LAST, |
| }; |
| |
| enum carl9170_erp_modes { |
| CARL9170_ERP_INVALID, |
| CARL9170_ERP_AUTO, |
| CARL9170_ERP_MAC80211, |
| CARL9170_ERP_OFF, |
| CARL9170_ERP_CTS, |
| CARL9170_ERP_RTS, |
| __CARL9170_ERP_NUM, |
| }; |
| |
| struct ar9170 { |
| struct ath_common common; |
| struct ieee80211_hw *hw; |
| struct mutex mutex; |
| enum carl9170_device_state state; |
| spinlock_t state_lock; |
| enum carl9170_restart_reasons last_reason; |
| bool registered; |
| |
| /* USB */ |
| struct usb_device *udev; |
| struct usb_interface *intf; |
| struct usb_anchor rx_anch; |
| struct usb_anchor rx_work; |
| struct usb_anchor rx_pool; |
| struct usb_anchor tx_wait; |
| struct usb_anchor tx_anch; |
| struct usb_anchor tx_cmd; |
| struct usb_anchor tx_err; |
| struct tasklet_struct usb_tasklet; |
| atomic_t tx_cmd_urbs; |
| atomic_t tx_anch_urbs; |
| atomic_t rx_anch_urbs; |
| atomic_t rx_work_urbs; |
| atomic_t rx_pool_urbs; |
| kernel_ulong_t features; |
| |
| /* firmware settings */ |
| struct completion fw_load_wait; |
| struct completion fw_boot_wait; |
| struct { |
| const struct carl9170fw_desc_head *desc; |
| const struct firmware *fw; |
| unsigned int offset; |
| unsigned int address; |
| unsigned int cmd_bufs; |
| unsigned int api_version; |
| unsigned int vif_num; |
| unsigned int err_counter; |
| unsigned int bug_counter; |
| u32 beacon_addr; |
| unsigned int beacon_max_len; |
| bool rx_stream; |
| bool tx_stream; |
| bool rx_filter; |
| bool hw_counters; |
| unsigned int mem_blocks; |
| unsigned int mem_block_size; |
| unsigned int rx_size; |
| unsigned int tx_seq_table; |
| bool ba_filter; |
| bool disable_offload_fw; |
| } fw; |
| |
| /* interface configuration combinations */ |
| struct ieee80211_iface_limit if_comb_limits[1]; |
| struct ieee80211_iface_combination if_combs[1]; |
| |
| /* reset / stuck frames/queue detection */ |
| struct work_struct restart_work; |
| struct work_struct ping_work; |
| unsigned int restart_counter; |
| unsigned long queue_stop_timeout[__AR9170_NUM_TXQ]; |
| unsigned long max_queue_stop_timeout[__AR9170_NUM_TXQ]; |
| bool needs_full_reset; |
| bool force_usb_reset; |
| atomic_t pending_restarts; |
| |
| /* interface mode settings */ |
| struct list_head vif_list; |
| unsigned long vif_bitmap; |
| unsigned int vifs; |
| struct carl9170_vif vif_priv[AR9170_MAX_VIRTUAL_MAC]; |
| |
| /* beaconing */ |
| spinlock_t beacon_lock; |
| unsigned int global_pretbtt; |
| unsigned int global_beacon_int; |
| struct carl9170_vif_info __rcu *beacon_iter; |
| unsigned int beacon_enabled; |
| |
| /* cryptographic engine */ |
| u64 usedkeys; |
| bool rx_software_decryption; |
| bool disable_offload; |
| |
| /* filter settings */ |
| u64 cur_mc_hash; |
| u32 cur_filter; |
| unsigned int filter_state; |
| unsigned int rx_filter_caps; |
| bool sniffer_enabled; |
| |
| /* MAC */ |
| enum carl9170_erp_modes erp_mode; |
| |
| /* PHY */ |
| struct ieee80211_channel *channel; |
| unsigned int num_channels; |
| int noise[4]; |
| unsigned int chan_fail; |
| unsigned int total_chan_fail; |
| u8 heavy_clip; |
| u8 ht_settings; |
| struct { |
| u64 active; /* usec */ |
| u64 cca; /* usec */ |
| u64 tx_time; /* usec */ |
| u64 rx_total; |
| u64 rx_overrun; |
| } tally; |
| struct delayed_work stat_work; |
| struct survey_info *survey; |
| |
| /* power calibration data */ |
| u8 power_5G_leg[4]; |
| u8 power_2G_cck[4]; |
| u8 power_2G_ofdm[4]; |
| u8 power_5G_ht20[8]; |
| u8 power_5G_ht40[8]; |
| u8 power_2G_ht20[8]; |
| u8 power_2G_ht40[8]; |
| |
| #ifdef CONFIG_CARL9170_LEDS |
| /* LED */ |
| struct delayed_work led_work; |
| struct carl9170_led leds[AR9170_NUM_LEDS]; |
| #endif /* CONFIG_CARL9170_LEDS */ |
| |
| /* qos queue settings */ |
| spinlock_t tx_stats_lock; |
| struct carl9170_tx_queue_stats tx_stats[__AR9170_NUM_TXQ]; |
| struct ieee80211_tx_queue_params edcf[5]; |
| struct completion tx_flush; |
| |
| /* CMD */ |
| int cmd_seq; |
| int readlen; |
| u8 *readbuf; |
| spinlock_t cmd_lock; |
| struct completion cmd_wait; |
| union { |
| __le32 cmd_buf[PAYLOAD_MAX + 1]; |
| struct carl9170_cmd cmd; |
| struct carl9170_rsp rsp; |
| }; |
| |
| /* statistics */ |
| unsigned int tx_dropped; |
| unsigned int tx_ack_failures; |
| unsigned int tx_fcs_errors; |
| unsigned int rx_dropped; |
| |
| /* EEPROM */ |
| struct ar9170_eeprom eeprom; |
| |
| /* tx queuing */ |
| struct sk_buff_head tx_pending[__AR9170_NUM_TXQ]; |
| struct sk_buff_head tx_status[__AR9170_NUM_TXQ]; |
| struct delayed_work tx_janitor; |
| unsigned long tx_janitor_last_run; |
| bool tx_schedule; |
| |
| /* tx ampdu */ |
| struct work_struct ampdu_work; |
| spinlock_t tx_ampdu_list_lock; |
| struct carl9170_sta_tid __rcu *tx_ampdu_iter; |
| struct list_head tx_ampdu_list; |
| atomic_t tx_ampdu_upload; |
| atomic_t tx_ampdu_scheduler; |
| atomic_t tx_total_pending; |
| atomic_t tx_total_queued; |
| unsigned int tx_ampdu_list_len; |
| int current_density; |
| int current_factor; |
| bool tx_ampdu_schedule; |
| |
| /* internal memory management */ |
| spinlock_t mem_lock; |
| unsigned long *mem_bitmap; |
| atomic_t mem_free_blocks; |
| atomic_t mem_allocs; |
| |
| /* rxstream mpdu merge */ |
| struct ar9170_rx_head rx_plcp; |
| bool rx_has_plcp; |
| struct sk_buff *rx_failover; |
| int rx_failover_missing; |
| u32 ampdu_ref; |
| |
| /* FIFO for collecting outstanding BlockAckRequest */ |
| struct list_head bar_list[__AR9170_NUM_TXQ]; |
| spinlock_t bar_list_lock[__AR9170_NUM_TXQ]; |
| |
| #ifdef CONFIG_CARL9170_WPC |
| struct { |
| bool pbc_state; |
| struct input_dev *pbc; |
| char name[32]; |
| char phys[32]; |
| } wps; |
| #endif /* CONFIG_CARL9170_WPC */ |
| |
| #ifdef CONFIG_CARL9170_DEBUGFS |
| struct carl9170_debug debug; |
| struct dentry *debug_dir; |
| #endif /* CONFIG_CARL9170_DEBUGFS */ |
| |
| /* PSM */ |
| struct work_struct ps_work; |
| struct { |
| unsigned int dtim_counter; |
| unsigned long last_beacon; |
| unsigned long last_action; |
| unsigned long last_slept; |
| unsigned int sleep_ms; |
| unsigned int off_override; |
| bool state; |
| } ps; |
| |
| #ifdef CONFIG_CARL9170_HWRNG |
| # define CARL9170_HWRNG_CACHE_SIZE CARL9170_MAX_CMD_PAYLOAD_LEN |
| struct { |
| struct hwrng rng; |
| bool initialized; |
| char name[30 + 1]; |
| u16 cache[CARL9170_HWRNG_CACHE_SIZE / sizeof(u16)]; |
| unsigned int cache_idx; |
| } rng; |
| #endif /* CONFIG_CARL9170_HWRNG */ |
| }; |
| |
| enum carl9170_ps_off_override_reasons { |
| PS_OFF_VIF = BIT(0), |
| PS_OFF_BCN = BIT(1), |
| }; |
| |
| struct carl9170_bar_list_entry { |
| struct list_head list; |
| struct rcu_head head; |
| struct sk_buff *skb; |
| }; |
| |
| struct carl9170_ba_stats { |
| u8 ampdu_len; |
| u8 ampdu_ack_len; |
| bool clear; |
| bool req; |
| }; |
| |
| struct carl9170_sta_info { |
| bool ht_sta; |
| bool sleeping; |
| atomic_t pending_frames; |
| unsigned int ampdu_max_len; |
| struct carl9170_sta_tid __rcu *agg[IEEE80211_NUM_TIDS]; |
| struct carl9170_ba_stats stats[IEEE80211_NUM_TIDS]; |
| }; |
| |
| struct carl9170_tx_info { |
| unsigned long timeout; |
| struct ar9170 *ar; |
| struct kref ref; |
| }; |
| |
| #define CHK_DEV_STATE(a, s) (((struct ar9170 *)a)->state >= (s)) |
| #define IS_INITIALIZED(a) (CHK_DEV_STATE(a, CARL9170_STOPPED)) |
| #define IS_ACCEPTING_CMD(a) (CHK_DEV_STATE(a, CARL9170_IDLE)) |
| #define IS_STARTED(a) (CHK_DEV_STATE(a, CARL9170_STARTED)) |
| |
| static inline void __carl9170_set_state(struct ar9170 *ar, |
| enum carl9170_device_state newstate) |
| { |
| ar->state = newstate; |
| } |
| |
| static inline void carl9170_set_state(struct ar9170 *ar, |
| enum carl9170_device_state newstate) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ar->state_lock, flags); |
| __carl9170_set_state(ar, newstate); |
| spin_unlock_irqrestore(&ar->state_lock, flags); |
| } |
| |
| static inline void carl9170_set_state_when(struct ar9170 *ar, |
| enum carl9170_device_state min, enum carl9170_device_state newstate) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&ar->state_lock, flags); |
| if (CHK_DEV_STATE(ar, min)) |
| __carl9170_set_state(ar, newstate); |
| spin_unlock_irqrestore(&ar->state_lock, flags); |
| } |
| |
| /* exported interface */ |
| void *carl9170_alloc(size_t priv_size); |
| int carl9170_register(struct ar9170 *ar); |
| void carl9170_unregister(struct ar9170 *ar); |
| void carl9170_free(struct ar9170 *ar); |
| void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r); |
| void carl9170_ps_check(struct ar9170 *ar); |
| |
| /* USB back-end */ |
| int carl9170_usb_open(struct ar9170 *ar); |
| void carl9170_usb_stop(struct ar9170 *ar); |
| void carl9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb); |
| void carl9170_usb_handle_tx_err(struct ar9170 *ar); |
| int carl9170_exec_cmd(struct ar9170 *ar, const enum carl9170_cmd_oids, |
| u32 plen, void *payload, u32 rlen, void *resp); |
| int __carl9170_exec_cmd(struct ar9170 *ar, struct carl9170_cmd *cmd, |
| const bool free_buf); |
| int carl9170_usb_restart(struct ar9170 *ar); |
| void carl9170_usb_reset(struct ar9170 *ar); |
| |
| /* MAC */ |
| int carl9170_init_mac(struct ar9170 *ar); |
| int carl9170_set_qos(struct ar9170 *ar); |
| int carl9170_update_multicast(struct ar9170 *ar, const u64 mc_hast); |
| int carl9170_mod_virtual_mac(struct ar9170 *ar, const unsigned int id, |
| const u8 *mac); |
| int carl9170_set_operating_mode(struct ar9170 *ar); |
| int carl9170_set_beacon_timers(struct ar9170 *ar); |
| int carl9170_set_dyn_sifs_ack(struct ar9170 *ar); |
| int carl9170_set_rts_cts_rate(struct ar9170 *ar); |
| int carl9170_set_ampdu_settings(struct ar9170 *ar); |
| int carl9170_set_slot_time(struct ar9170 *ar); |
| int carl9170_set_mac_rates(struct ar9170 *ar); |
| int carl9170_set_hwretry_limit(struct ar9170 *ar, const u32 max_retry); |
| int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac, |
| const u8 ktype, const u8 keyidx, const u8 *keydata, const int keylen); |
| int carl9170_disable_key(struct ar9170 *ar, const u8 id); |
| int carl9170_set_mac_tpc(struct ar9170 *ar, struct ieee80211_channel *channel); |
| |
| /* RX */ |
| void carl9170_rx(struct ar9170 *ar, void *buf, unsigned int len); |
| void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len); |
| |
| /* TX */ |
| void carl9170_op_tx(struct ieee80211_hw *hw, |
| struct ieee80211_tx_control *control, |
| struct sk_buff *skb); |
| void carl9170_tx_janitor(struct work_struct *work); |
| void carl9170_tx_process_status(struct ar9170 *ar, |
| const struct carl9170_rsp *cmd); |
| void carl9170_tx_status(struct ar9170 *ar, struct sk_buff *skb, |
| const bool success); |
| void carl9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb); |
| void carl9170_tx_drop(struct ar9170 *ar, struct sk_buff *skb); |
| void carl9170_tx_scheduler(struct ar9170 *ar); |
| void carl9170_tx_get_skb(struct sk_buff *skb); |
| int carl9170_tx_put_skb(struct sk_buff *skb); |
| int carl9170_update_beacon(struct ar9170 *ar, const bool submit); |
| |
| /* LEDs */ |
| #ifdef CONFIG_CARL9170_LEDS |
| int carl9170_led_register(struct ar9170 *ar); |
| void carl9170_led_unregister(struct ar9170 *ar); |
| #endif /* CONFIG_CARL9170_LEDS */ |
| int carl9170_led_init(struct ar9170 *ar); |
| int carl9170_led_set_state(struct ar9170 *ar, const u32 led_state); |
| |
| /* PHY / RF */ |
| int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, |
| enum nl80211_channel_type bw); |
| int carl9170_get_noisefloor(struct ar9170 *ar); |
| |
| /* FW */ |
| int carl9170_parse_firmware(struct ar9170 *ar); |
| |
| extern struct ieee80211_rate __carl9170_ratetable[]; |
| extern int modparam_noht; |
| |
| static inline struct ar9170 *carl9170_get_priv(struct carl9170_vif *carl_vif) |
| { |
| return container_of(carl_vif, struct ar9170, |
| vif_priv[carl_vif->id]); |
| } |
| |
| static inline struct ieee80211_hdr *carl9170_get_hdr(struct sk_buff *skb) |
| { |
| return (void *)((struct _carl9170_tx_superframe *) |
| skb->data)->frame_data; |
| } |
| |
| static inline u16 get_seq_h(struct ieee80211_hdr *hdr) |
| { |
| return le16_to_cpu(hdr->seq_ctrl) >> 4; |
| } |
| |
| static inline u16 carl9170_get_seq(struct sk_buff *skb) |
| { |
| return get_seq_h(carl9170_get_hdr(skb)); |
| } |
| |
| static inline u16 get_tid_h(struct ieee80211_hdr *hdr) |
| { |
| return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK; |
| } |
| |
| static inline u16 carl9170_get_tid(struct sk_buff *skb) |
| { |
| return get_tid_h(carl9170_get_hdr(skb)); |
| } |
| |
| static inline struct ieee80211_vif * |
| carl9170_get_vif(struct carl9170_vif_info *priv) |
| { |
| return container_of((void *)priv, struct ieee80211_vif, drv_priv); |
| } |
| |
| /* Protected by ar->mutex or RCU */ |
| static inline struct ieee80211_vif *carl9170_get_main_vif(struct ar9170 *ar) |
| { |
| struct carl9170_vif_info *cvif; |
| |
| list_for_each_entry_rcu(cvif, &ar->vif_list, list) { |
| if (cvif->active) |
| return carl9170_get_vif(cvif); |
| } |
| |
| return NULL; |
| } |
| |
| static inline bool is_main_vif(struct ar9170 *ar, struct ieee80211_vif *vif) |
| { |
| bool ret; |
| |
| rcu_read_lock(); |
| ret = (carl9170_get_main_vif(ar) == vif); |
| rcu_read_unlock(); |
| return ret; |
| } |
| |
| #endif /* __CARL9170_H */ |