2 * Copyright (c) 2010-2011 Atheros Communications Inc.
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include <linux/etherdevice.h>
21 #include <linux/rtnetlink.h>
22 #include <linux/firmware.h>
23 #include <linux/sched.h>
24 #include <net/cfg80211.h>
30 #define ATH6KL_MAX_RX_BUFFERS 16
31 #define ATH6KL_BUFFER_SIZE 1664
32 #define ATH6KL_MAX_AMSDU_RX_BUFFERS 4
33 #define ATH6KL_AMSDU_REFILL_THRESHOLD 3
34 #define ATH6KL_AMSDU_BUFFER_SIZE (WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH + 128)
35 #define MAX_MSDU_SUBFRAME_PAYLOAD_LEN 1508
36 #define MIN_MSDU_SUBFRAME_PAYLOAD_LEN 46
38 #define USER_SAVEDKEYS_STAT_INIT 0
39 #define USER_SAVEDKEYS_STAT_RUN 1
41 #define ATH6KL_TX_TIMEOUT 10
42 #define ATH6KL_MAX_ENDPOINTS 4
43 #define MAX_NODE_NUM 15
45 /* Extra bytes for htc header alignment */
46 #define ATH6KL_HTC_ALIGN_BYTES 3
48 /* MAX_HI_COOKIE_NUM are reserved for high priority traffic */
49 #define MAX_DEF_COOKIE_NUM 180
50 #define MAX_HI_COOKIE_NUM 18 /* 10% of MAX_COOKIE_NUM */
51 #define MAX_COOKIE_NUM (MAX_DEF_COOKIE_NUM + MAX_HI_COOKIE_NUM)
53 #define MAX_DEFAULT_SEND_QUEUE_DEPTH (MAX_DEF_COOKIE_NUM / WMM_NUM_AC)
55 #define DISCON_TIMER_INTVAL 10000 /* in msec */
56 #define A_DEFAULT_LISTEN_INTERVAL 100
57 #define A_MAX_WOW_LISTEN_INTERVAL 1000
59 /* AR6003 1.0 definitions */
60 #define AR6003_REV1_VERSION 0x300002ba
62 /* AR6003 2.0 definitions */
63 #define AR6003_REV2_VERSION 0x30000384
64 #define AR6003_REV2_PATCH_DOWNLOAD_ADDRESS 0x57e910
65 #define AR6003_REV2_OTP_FILE "ath6k/AR6003/hw2.0/otp.bin.z77"
66 #define AR6003_REV2_FIRMWARE_FILE "ath6k/AR6003/hw2.0/athwlan.bin.z77"
67 #define AR6003_REV2_PATCH_FILE "ath6k/AR6003/hw2.0/data.patch.bin"
68 #define AR6003_REV2_BOARD_DATA_FILE "ath6k/AR6003/hw2.0/bdata.bin"
69 #define AR6003_REV2_DEFAULT_BOARD_DATA_FILE "ath6k/AR6003/hw2.0/bdata.SD31.bin"
71 /* AR6003 3.0 definitions */
72 #define AR6003_REV3_VERSION 0x30000582
73 #define AR6003_REV3_OTP_FILE "ath6k/AR6003/hw2.1.1/otp.bin"
74 #define AR6003_REV3_FIRMWARE_FILE "ath6k/AR6003/hw2.1.1/athwlan.bin"
75 #define AR6003_REV3_PATCH_FILE "ath6k/AR6003/hw2.1.1/data.patch.bin"
76 #define AR6003_REV3_BOARD_DATA_FILE "ath6k/AR6003/hw2.1.1/bdata.bin"
77 #define AR6003_REV3_DEFAULT_BOARD_DATA_FILE \
78 "ath6k/AR6003/hw2.1.1/bdata.SD31.bin"
80 /* AR6004 1.0 definitions */
81 #define AR6004_REV1_VERSION 0x30000623
82 #define AR6004_REV1_FIRMWARE_FILE "ath6k/AR6004/hw6.1/fw.ram.bin"
83 #define AR6004_REV1_BOARD_DATA_FILE "ath6k/AR6004/hw6.1/bdata.bin"
84 #define AR6004_REV1_DEFAULT_BOARD_DATA_FILE "ath6k/AR6004/hw6.1/bdata.DB132.bin"
85 #define AR6004_REV1_EPPING_FIRMWARE_FILE "ath6k/AR6004/hw6.1/endpointping.bin"
87 /* Per STA data, used in AP mode */
88 #define STA_PS_AWAKE BIT(0)
89 #define STA_PS_SLEEP BIT(1)
90 #define STA_PS_POLLED BIT(2)
92 /* HTC TX packet tagging definitions */
93 #define ATH6KL_CONTROL_PKT_TAG HTC_TX_PACKET_TAG_USER_DEFINED
94 #define ATH6KL_DATA_PKT_TAG (ATH6KL_CONTROL_PKT_TAG + 1)
96 #define AR6003_CUST_DATA_SIZE 16
98 #define AGGR_WIN_IDX(x, y) ((x) % (y))
99 #define AGGR_INCR_IDX(x, y) AGGR_WIN_IDX(((x) + 1), (y))
100 #define AGGR_DCRM_IDX(x, y) AGGR_WIN_IDX(((x) - 1), (y))
101 #define ATH6KL_MAX_SEQ_NO 0xFFF
102 #define ATH6KL_NEXT_SEQ_NO(x) (((x) + 1) & ATH6KL_MAX_SEQ_NO)
104 #define NUM_OF_TIDS 8
105 #define AGGR_SZ_DEFAULT 8
107 #define AGGR_WIN_SZ_MIN 2
108 #define AGGR_WIN_SZ_MAX 8
110 #define TID_WINDOW_SZ(_x) ((_x) << 1)
112 #define AGGR_NUM_OF_FREE_NETBUFS 16
114 #define AGGR_RX_TIMEOUT 400 /* in ms */
116 #define WMI_TIMEOUT (2 * HZ)
118 #define MBOX_YIELD_LIMIT 99
120 /* configuration lags */
122 * ATH6KL_CONF_IGNORE_ERP_BARKER: Ignore the barker premable in
123 * ERP IE of beacon to determine the short premable support when
124 * sending (Re)Assoc req.
125 * ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN: Don't send the power
126 * module state transition failure events which happen during
129 #define ATH6KL_CONF_IGNORE_ERP_BARKER BIT(0)
130 #define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN BIT(1)
131 #define ATH6KL_CONF_ENABLE_11N BIT(2)
132 #define ATH6KL_CONF_ENABLE_TX_BURST BIT(3)
134 enum wlan_low_pwr_state {
136 WLAN_POWER_STATE_CUT_PWR,
137 WLAN_POWER_STATE_DEEP_SLEEP,
160 struct skb_hold_q *hold_q;
161 struct sk_buff_head q;
180 struct timer_list timer;
181 struct net_device *dev;
182 struct rxtid rx_tid[NUM_OF_TIDS];
183 struct sk_buff_head free_q;
184 struct rxtid_stats stat[NUM_OF_TIDS];
187 struct ath6kl_wep_key {
193 #define ATH6KL_KEY_SEQ_LEN 8
196 u8 key[WLAN_MAX_KEY_LEN];
198 u8 seq[ATH6KL_KEY_SEQ_LEN];
203 struct ath6kl_node_mapping {
204 u8 mac_addr[ETH_ALEN];
209 struct ath6kl_cookie {
212 struct htc_packet htc_pkt;
213 struct ath6kl_cookie *arc_list_next;
223 u8 wpa_ie[ATH6KL_MAX_IE];
224 struct sk_buff_head psq;
228 struct ath6kl_version {
240 struct target_stats {
249 u64 tx_rts_success_cnt;
250 u64 tx_pkt_per_ac[4];
255 u64 tx_mult_retry_cnt;
270 u64 rx_key_cache_miss;
274 u64 tkip_local_mic_fail;
275 u64 tkip_cnter_measures_invoked;
281 u64 pwr_save_fail_cnt;
294 u16 wow_evt_discarded;
296 s16 noise_floor_calib;
298 s16 cs_ave_beacon_rssi;
299 u8 cs_ave_beacon_snr;
300 u8 cs_last_roam_msec;
303 u8 wow_host_pkt_wakeups;
304 u8 wow_host_evt_wakeups;
311 struct ath6kl_mbox_info {
324 * 802.11i defines an extended IV for use with non-WEP ciphers.
325 * When the EXTIV bit is set in the key id byte an additional
326 * 4 bytes immediately follow the IV for TKIP. For CCMP the
327 * EXTIV bit is likewise set but the 8 bytes represent the
328 * CCMP header rather than IV+extended-IV.
331 #define ATH6KL_KEYBUF_SIZE 16
332 #define ATH6KL_MICBUF_SIZE (8+8) /* space for both tx and rx */
334 #define ATH6KL_KEY_XMIT 0x01
335 #define ATH6KL_KEY_RECV 0x02
336 #define ATH6KL_KEY_DEFAULT 0x80 /* default xmit key */
338 /* Initial group key for AP mode */
339 struct ath6kl_req_key {
343 u8 key[WLAN_MAX_KEY_LEN];
348 #define WMI_ENABLED 0
351 #define STATS_UPDATE_PEND 3
352 #define CONNECT_PEND 4
353 #define WMM_ENABLED 5
354 #define NETQ_STOPPED 6
355 #define WMI_CTRL_EP_FULL 7
356 #define DTIM_EXPIRED 8
357 #define DESTROY_IN_PROGRESS 9
358 #define NETDEV_REGISTERED 10
360 #define WLAN_ENABLED 12
364 struct net_device *net_dev;
365 struct ath6kl_bmi bmi;
366 const struct ath6kl_hif_ops *hif_ops;
368 int tx_pending[ENDPOINT_MAX];
369 int total_tx_data_pend;
370 struct htc_target *htc_target;
373 struct semaphore sem;
375 u8 ssid[IEEE80211_MAX_SSID_LEN];
381 u8 prwise_crypto_len;
385 struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1];
387 u8 req_bssid[ETH_ALEN];
392 struct ath6kl_version version;
395 struct net_device_stats net_stats;
396 struct target_stats target_stats;
397 struct ath6kl_node_mapping node_map[MAX_NODE_NUM];
401 struct ath6kl_cookie *cookie_list;
403 enum htc_endpoint_id ac2ep_map[WMM_NUM_AC];
404 bool ac_stream_active[WMM_NUM_AC];
405 u8 ac_stream_pri_map[WMM_NUM_AC];
406 u8 hiac_stream_active_pri;
407 u8 ep2ac_map[ENDPOINT_MAX];
408 enum htc_endpoint_id ctrl_ep;
409 struct htc_credit_state_info credit_state_info;
410 u32 connect_ctrl_flags;
413 struct ath6kl_sta sta_list[AP_MAX_NUM_STA];
415 struct ath6kl_req_key ap_mode_bkey;
416 struct sk_buff_head mcastpsq;
417 spinlock_t mcastpsq_lock;
419 struct aggr_info *aggr_cntxt;
420 struct wmi_ap_mode_stat ap_stats;
421 u8 ap_country_code[3];
422 struct list_head amsdu_rx_buffer_queue;
423 struct timer_list disconnect_timer;
425 struct wireless_dev *wdev;
426 struct cfg80211_scan_request *scan_req;
427 struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1];
428 enum sme_state sme_state;
429 enum wlan_low_pwr_state wlan_pwr_state;
430 struct wmi_scan_params_cmd sc_params;
431 #define AR_MCAST_FILTER_MAC_ADDR_SIZE 4
435 wait_queue_head_t event_wq;
436 struct ath6kl_mbox_info mbox_info;
438 struct ath6kl_cookie cookie_mem[MAX_COOKIE_NUM];
454 struct workqueue_struct *ath6kl_wq;
456 struct ath6kl_node_table scan_table;
457 struct dentry *debugfs_phy;
463 static inline void *ath6kl_priv(struct net_device *dev)
465 return wdev_priv(dev->ieee80211_ptr);
468 static inline void ath6kl_deposit_credit_to_ep(struct htc_credit_state_info
470 struct htc_endpoint_credit_dist
471 *ep_dist, int credits)
473 ep_dist->credits += credits;
474 ep_dist->cred_assngd += credits;
475 cred_info->cur_free_credits -= credits;
478 void ath6kl_destroy(struct net_device *dev, unsigned int unregister);
479 int ath6kl_configure_target(struct ath6kl *ar);
480 void ath6kl_detect_error(unsigned long ptr);
481 void disconnect_timer_handler(unsigned long ptr);
482 void init_netdev(struct net_device *dev);
483 void ath6kl_cookie_init(struct ath6kl *ar);
484 void ath6kl_cookie_cleanup(struct ath6kl *ar);
485 void ath6kl_rx(struct htc_target *target, struct htc_packet *packet);
486 void ath6kl_tx_complete(void *context, struct list_head *packet_queue);
487 enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
488 struct htc_packet *packet);
489 void ath6kl_stop_txrx(struct ath6kl *ar);
490 void ath6kl_cleanup_amsdu_rxbufs(struct ath6kl *ar);
491 int ath6kl_access_datadiag(struct ath6kl *ar, u32 address,
492 u8 *data, u32 length, bool read);
493 int ath6kl_read_reg_diag(struct ath6kl *ar, u32 *address, u32 *data);
494 void ath6kl_init_profile_info(struct ath6kl *ar);
495 void ath6kl_tx_data_cleanup(struct ath6kl *ar);
496 void ath6kl_stop_endpoint(struct net_device *dev, bool keep_profile,
499 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
500 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
501 int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
503 struct aggr_info *aggr_init(struct net_device *dev);
504 void ath6kl_rx_refill(struct htc_target *target,
505 enum htc_endpoint_id endpoint);
506 void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count);
507 struct htc_packet *ath6kl_alloc_amsdu_rxbuf(struct htc_target *target,
508 enum htc_endpoint_id endpoint,
510 void aggr_module_destroy(struct aggr_info *aggr_info);
511 void aggr_reset_state(struct aggr_info *aggr_info);
513 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl *ar, u8 * node_addr);
514 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid);
516 void ath6kl_ready_event(void *devt, u8 * datap, u32 sw_ver, u32 abi_ver);
517 int ath6kl_control_tx(void *devt, struct sk_buff *skb,
518 enum htc_endpoint_id eid);
519 void ath6kl_connect_event(struct ath6kl *ar, u16 channel,
520 u8 *bssid, u16 listen_int,
521 u16 beacon_int, enum network_type net_type,
522 u8 beacon_ie_len, u8 assoc_req_len,
523 u8 assoc_resp_len, u8 *assoc_info);
524 void ath6kl_disconnect_event(struct ath6kl *ar, u8 reason,
525 u8 *bssid, u8 assoc_resp_len,
526 u8 *assoc_info, u16 prot_reason_status);
527 void ath6kl_tkip_micerr_event(struct ath6kl *ar, u8 keyid, bool ismcast);
528 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr);
529 void ath6kl_scan_complete_evt(struct ath6kl *ar, int status);
530 void ath6kl_tgt_stats_event(struct ath6kl *ar, u8 *ptr, u32 len);
531 void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active);
532 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac);
534 void ath6kl_pspoll_event(struct ath6kl *ar, u8 aid);
536 void ath6kl_dtimexpiry_event(struct ath6kl *ar);
537 void ath6kl_disconnect(struct ath6kl *ar);
538 void ath6kl_deep_sleep_enable(struct ath6kl *ar);
539 void aggr_recv_delba_req_evt(struct ath6kl *ar, u8 tid);
540 void aggr_recv_addba_req_evt(struct ath6kl *ar, u8 tid, u16 seq_no,
542 void ath6kl_wakeup_event(void *dev);
543 void ath6kl_target_failure(struct ath6kl *ar);
545 void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni);