summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/htc.h
blob: 43b9e21bc56284da1246ec1020cd23907a11d0df (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
/*
 * Copyright (c) 2010 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 HTC_H
#define HTC_H

#include <linux/module.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/leds.h>
#include <linux/slab.h>
#include <net/mac80211.h>

#include "common.h"
#include "htc_hst.h"
#include "hif_usb.h"
#include "wmi.h"

#define ATH_STA_SHORT_CALINTERVAL 1000    /* 1 second */
#define ATH_ANI_POLLINTERVAL      100     /* 100 ms */
#define ATH_LONG_CALINTERVAL      30000   /* 30 seconds */
#define ATH_RESTART_CALINTERVAL   1200000 /* 20 minutes */

#define ATH_DEFAULT_BMISS_LIMIT 10
#define IEEE80211_MS_TO_TU(x)   (((x) * 1000) / 1024)
#define TSF_TO_TU(_h, _l) \
	((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))

extern struct ieee80211_ops ath9k_htc_ops;
extern int htc_modparam_nohwcrypt;

enum htc_phymode {
	HTC_MODE_AUTO		= 0,
	HTC_MODE_11A		= 1,
	HTC_MODE_11B		= 2,
	HTC_MODE_11G		= 3,
	HTC_MODE_FH		= 4,
	HTC_MODE_TURBO_A	= 5,
	HTC_MODE_TURBO_G	= 6,
	HTC_MODE_11NA		= 7,
	HTC_MODE_11NG		= 8
};

enum htc_opmode {
	HTC_M_STA	= 1,
	HTC_M_IBSS	= 0,
	HTC_M_AHDEMO	= 3,
	HTC_M_HOSTAP	= 6,
	HTC_M_MONITOR	= 8,
	HTC_M_WDS	= 2
};

#define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
#define ATH9K_HTC_AMPDU	1
#define ATH9K_HTC_NORMAL 2

#define ATH9K_HTC_TX_CTSONLY      0x1
#define ATH9K_HTC_TX_RTSCTS       0x2
#define ATH9K_HTC_TX_USE_MIN_RATE 0x100

struct tx_frame_hdr {
	u8 data_type;
	u8 node_idx;
	u8 vif_idx;
	u8 tidno;
	u32 flags; /* ATH9K_HTC_TX_* */
	u8 key_type;
	u8 keyix;
	u8 reserved[26];
} __packed;

struct tx_mgmt_hdr {
	u8 node_idx;
	u8 vif_idx;
	u8 tidno;
	u8 flags;
	u8 key_type;
	u8 keyix;
	u16 reserved;
} __packed;

struct tx_beacon_header {
	u8 len_changed;
	u8 vif_index;
	u16 rev;
} __packed;

struct ath9k_htc_target_hw {
	u32 flags;
	u32 flags_ext;
	u32 ampdu_limit;
	u8 ampdu_subframes;
	u8 tx_chainmask;
	u8 tx_chainmask_legacy;
	u8 rtscts_ratecode;
	u8 protmode;
} __packed;

struct ath9k_htc_cap_target {
	u32 flags;
	u32 flags_ext;
	u32 ampdu_limit;
	u8 ampdu_subframes;
	u8 tx_chainmask;
	u8 tx_chainmask_legacy;
	u8 rtscts_ratecode;
	u8 protmode;
} __packed;

struct ath9k_htc_target_vif {
	u8 index;
	u8 des_bssid[ETH_ALEN];
	__be32 opmode;
	u8 myaddr[ETH_ALEN];
	u8 bssid[ETH_ALEN];
	u32 flags;
	u32 flags_ext;
	u16 ps_sta;
	__be16 rtsthreshold;
	u8 ath_cap;
	u8 node;
	s8 mcast_rate;
} __packed;

#define ATH_HTC_STA_AUTH  0x0001
#define ATH_HTC_STA_QOS   0x0002
#define ATH_HTC_STA_ERP   0x0004
#define ATH_HTC_STA_HT    0x0008

/* FIXME: UAPSD variables */
struct ath9k_htc_target_sta {
	u16 associd;
	u16 txpower;
	u32 ucastkey;
	u8 macaddr[ETH_ALEN];
	u8 bssid[ETH_ALEN];
	u8 sta_index;
	u8 vif_index;
	u8 vif_sta;
	__be16 flags; /* ATH_HTC_STA_* */
	u16 htcap;
	u8 valid;
	u16 capinfo;
	struct ath9k_htc_target_hw *hw;
	struct ath9k_htc_target_vif *vif;
	u16 txseqmgmt;
	u8 is_vif_sta;
	u16 maxampdu;
	u16 iv16;
	u32 iv32;
} __packed;

struct ath9k_htc_target_aggr {
	u8 sta_index;
	u8 tidno;
	u8 aggr_enable;
	u8 padding;
} __packed;

#define ATH_HTC_RATE_MAX 30

#define WLAN_RC_DS_FLAG  0x01
#define WLAN_RC_40_FLAG  0x02
#define WLAN_RC_SGI_FLAG 0x04
#define WLAN_RC_HT_FLAG  0x08

struct ath9k_htc_rateset {
	u8 rs_nrates;
	u8 rs_rates[ATH_HTC_RATE_MAX];
};

struct ath9k_htc_rate {
	struct ath9k_htc_rateset legacy_rates;
	struct ath9k_htc_rateset ht_rates;
} __packed;

struct ath9k_htc_target_rate {
	u8 sta_index;
	u8 isnew;
	__be32 capflags;
	struct ath9k_htc_rate rates;
};

struct ath9k_htc_target_stats {
	__be32 tx_shortretry;
	__be32 tx_longretry;
	__be32 tx_xretries;
	__be32 ht_txunaggr_xretry;
	__be32 ht_tx_xretries;
} __packed;

struct ath9k_htc_vif {
	u8 index;
};

#define ATH9K_HTC_MAX_STA 8
#define ATH9K_HTC_MAX_TID 8

enum tid_aggr_state {
	AGGR_STOP = 0,
	AGGR_PROGRESS,
	AGGR_START,
	AGGR_OPERATIONAL
};

struct ath9k_htc_sta {
	u8 index;
	enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
};

#define ATH9K_HTC_RXBUF 256
#define HTC_RX_FRAME_HEADER_SIZE 40

struct ath9k_htc_rxbuf {
	bool in_process;
	struct sk_buff *skb;
	struct ath_htc_rx_status rxstatus;
	struct list_head list;
};

struct ath9k_htc_rx {
	int last_rssi; /* FIXME: per-STA */
	struct list_head rxbuf;
	spinlock_t rxbuflock;
};

struct ath9k_htc_tx_ctl {
	u8 type; /* ATH9K_HTC_* */
};

#ifdef CONFIG_ATH9K_HTC_DEBUGFS

#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
#define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)

#define TX_QSTAT_INC(q) (priv->debug.tx_stats.queue_stats[q]++)

struct ath_tx_stats {
	u32 buf_queued;
	u32 buf_completed;
	u32 skb_queued;
	u32 skb_completed;
	u32 skb_dropped;
	u32 queue_stats[WME_NUM_AC];
};

struct ath_rx_stats {
	u32 skb_allocated;
	u32 skb_completed;
	u32 skb_dropped;
};

struct ath9k_debug {
	struct dentry *debugfs_phy;
	struct dentry *debugfs_tgt_stats;
	struct dentry *debugfs_xmit;
	struct dentry *debugfs_recv;
	struct ath_tx_stats tx_stats;
	struct ath_rx_stats rx_stats;
	u32 txrate;
};

#else

#define TX_STAT_INC(c) do { } while (0)
#define RX_STAT_INC(c) do { } while (0)

#define TX_QSTAT_INC(c) do { } while (0)

#endif /* CONFIG_ATH9K_HTC_DEBUGFS */

#define ATH_LED_PIN_DEF             1
#define ATH_LED_PIN_9287            8
#define ATH_LED_PIN_9271            15
#define ATH_LED_PIN_7010            12
#define ATH_LED_ON_DURATION_IDLE    350	/* in msecs */
#define ATH_LED_OFF_DURATION_IDLE   250	/* in msecs */

enum ath_led_type {
	ATH_LED_RADIO,
	ATH_LED_ASSOC,
	ATH_LED_TX,
	ATH_LED_RX
};

struct ath_led {
	struct ath9k_htc_priv *priv;
	struct led_classdev led_cdev;
	enum ath_led_type led_type;
	struct delayed_work brightness_work;
	char name[32];
	bool registered;
	int brightness;
};

struct htc_beacon_config {
	u16 beacon_interval;
	u16 listen_interval;
	u16 dtim_period;
	u16 bmiss_timeout;
	u8 dtim_count;
};

#define OP_INVALID        BIT(0)
#define OP_SCANNING       BIT(1)
#define OP_FULL_RESET     BIT(2)
#define OP_LED_ASSOCIATED BIT(3)
#define OP_LED_ON         BIT(4)
#define OP_PREAMBLE_SHORT BIT(5)
#define OP_PROTECT_ENABLE BIT(6)
#define OP_ASSOCIATED     BIT(7)
#define OP_ENABLE_BEACON  BIT(8)
#define OP_LED_DEINIT     BIT(9)
#define OP_UNPLUGGED      BIT(10)

struct ath9k_htc_priv {
	struct device *dev;
	struct ieee80211_hw *hw;
	struct ath_hw *ah;
	struct htc_target *htc;
	struct wmi *wmi;

	enum htc_endpoint_id wmi_cmd_ep;
	enum htc_endpoint_id beacon_ep;
	enum htc_endpoint_id cab_ep;
	enum htc_endpoint_id uapsd_ep;
	enum htc_endpoint_id mgmt_ep;
	enum htc_endpoint_id data_be_ep;
	enum htc_endpoint_id data_bk_ep;
	enum htc_endpoint_id data_vi_ep;
	enum htc_endpoint_id data_vo_ep;

	u16 op_flags;
	u16 curtxpow;
	u16 txpowlimit;
	u16 nvifs;
	u16 nstations;
	u16 seq_no;
	u32 bmiss_cnt;

	struct ath9k_hw_cal_data caldata[38];

	spinlock_t beacon_lock;

	bool tx_queues_stop;
	spinlock_t tx_lock;

	struct ieee80211_vif *vif;
	struct htc_beacon_config cur_beacon_conf;
	unsigned int rxfilter;
	struct tasklet_struct wmi_tasklet;
	struct tasklet_struct rx_tasklet;
	struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
	struct ath9k_htc_rx rx;
	struct tasklet_struct tx_tasklet;
	struct sk_buff_head tx_queue;
	struct delayed_work ath9k_ani_work;
	struct work_struct ps_work;

	struct mutex htc_pm_lock;
	unsigned long ps_usecount;
	bool ps_enabled;
	bool ps_idle;

	struct ath_led radio_led;
	struct ath_led assoc_led;
	struct ath_led tx_led;
	struct ath_led rx_led;
	struct delayed_work ath9k_led_blink_work;
	int led_on_duration;
	int led_off_duration;
	int led_on_cnt;
	int led_off_cnt;

	int beaconq;
	int cabq;
	int hwq_map[WME_NUM_AC];

#ifdef CONFIG_ATH9K_HTC_DEBUGFS
	struct ath9k_debug debug;
#endif
	struct mutex mutex;
};

static inline void ath_read_cachesize(struct ath_common *common, int *csz)
{
	common->bus_ops->read_cachesize(common, csz);
}

void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);
void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
			     struct ieee80211_vif *vif);
void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);

void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
		    enum htc_endpoint_id ep_id);
void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
		    bool txok);
void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,
			enum htc_endpoint_id ep_id, bool txok);

void ath9k_htc_station_work(struct work_struct *work);
void ath9k_htc_aggr_work(struct work_struct *work);
void ath9k_ani_work(struct work_struct *work);;

int ath9k_tx_init(struct ath9k_htc_priv *priv);
void ath9k_tx_tasklet(unsigned long data);
int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb);
void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);
int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);
int get_hw_qnum(u16 queue, int *hwq_map);
int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,
		       struct ath9k_tx_queue_info *qinfo);

int ath9k_rx_init(struct ath9k_htc_priv *priv);
void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
void ath9k_rx_tasklet(unsigned long data);
u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);

void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);
void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);
void ath9k_ps_work(struct work_struct *work);

void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
void ath9k_init_leds(struct ath9k_htc_priv *priv);
void ath9k_deinit_leds(struct ath9k_htc_priv *priv);

int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
			   u16 devid);
void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
#ifdef CONFIG_PM
int ath9k_htc_resume(struct htc_target *htc_handle);
#endif
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
int ath9k_htc_debug_create_root(void);
void ath9k_htc_debug_remove_root(void);
int ath9k_htc_init_debug(struct ath_hw *ah);
void ath9k_htc_exit_debug(struct ath_hw *ah);
#else
static inline int ath9k_htc_debug_create_root(void) { return 0; };
static inline void ath9k_htc_debug_remove_root(void) {};
static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };
static inline void ath9k_htc_exit_debug(struct ath_hw *ah) {};
#endif /* CONFIG_ATH9K_HTC_DEBUGFS */

#endif /* HTC_H */
OpenPOWER on IntegriCloud