summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/wl12xx/wl1271.h
blob: d0938db043b366320bce03cd3b09d47c0ec763e8 (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
464
465
466
467
468
469
470
471
/*
 * This file is part of wl1271
 *
 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
 * Copyright (C) 2008-2009 Nokia Corporation
 *
 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * 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; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#ifndef __WL1271_H__
#define __WL1271_H__

#include <linux/mutex.h>
#include <linux/completion.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/bitops.h>
#include <net/mac80211.h>

#include "wl1271_conf.h"

#define DRIVER_NAME "wl1271"
#define DRIVER_PREFIX DRIVER_NAME ": "

enum {
	DEBUG_NONE	= 0,
	DEBUG_IRQ	= BIT(0),
	DEBUG_SPI	= BIT(1),
	DEBUG_BOOT	= BIT(2),
	DEBUG_MAILBOX	= BIT(3),
	DEBUG_NETLINK	= BIT(4),
	DEBUG_EVENT	= BIT(5),
	DEBUG_TX	= BIT(6),
	DEBUG_RX	= BIT(7),
	DEBUG_SCAN	= BIT(8),
	DEBUG_CRYPT	= BIT(9),
	DEBUG_PSM	= BIT(10),
	DEBUG_MAC80211	= BIT(11),
	DEBUG_CMD	= BIT(12),
	DEBUG_ACX	= BIT(13),
	DEBUG_ALL	= ~0,
};

#define DEBUG_LEVEL (DEBUG_NONE)

#define DEBUG_DUMP_LIMIT 1024

#define wl1271_error(fmt, arg...) \
	printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)

#define wl1271_warning(fmt, arg...) \
	printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)

#define wl1271_notice(fmt, arg...) \
	printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)

#define wl1271_info(fmt, arg...) \
	printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)

#define wl1271_debug(level, fmt, arg...) \
	do { \
		if (level & DEBUG_LEVEL) \
			printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
	} while (0)

#define wl1271_dump(level, prefix, buf, len)	\
	do { \
		if (level & DEBUG_LEVEL) \
			print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
				       DUMP_PREFIX_OFFSET, 16, 1,	\
				       buf,				\
				       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
				       0);				\
	} while (0)

#define wl1271_dump_ascii(level, prefix, buf, len)	\
	do { \
		if (level & DEBUG_LEVEL) \
			print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
				       DUMP_PREFIX_OFFSET, 16, 1,	\
				       buf,				\
				       min_t(size_t, len, DEBUG_DUMP_LIMIT), \
				       true);				\
	} while (0)

#define WL1271_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN |	\
				  CFG_BSSID_FILTER_EN | \
				  CFG_MC_FILTER_EN)

#define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN |  \
				  CFG_RX_MGMT_EN | CFG_RX_DATA_EN |   \
				  CFG_RX_CTL_EN | CFG_RX_BCN_EN |     \
				  CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)

#define WL1271_FW_NAME "wl1271-fw.bin"
#define WL1271_NVS_NAME "wl1271-nvs.bin"
#define WL1271_NVS_LEN  468

/*
 * Enable/disable 802.11a support for WL1273
 */
#undef WL1271_80211A_ENABLED

/*
 * FIXME: for the wl1271, a busy word count of 1 here will result in a more
 * optimal SPI interface. There is some SPI bug however, causing RXS time outs
 * with this mode occasionally on boot, so lets have three for now. A value of
 * three should make sure, that the chipset will always be ready, though this
 * will impact throughput and latencies slightly.
 */
#define WL1271_BUSY_WORD_CNT 3
#define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))

#define WL1271_ELP_HW_STATE_ASLEEP 0
#define WL1271_ELP_HW_STATE_IRQ    1

#define WL1271_DEFAULT_BEACON_INT  100
#define WL1271_DEFAULT_DTIM_PERIOD 1

#define ACX_TX_DESCRIPTORS         32

enum wl1271_state {
	WL1271_STATE_OFF,
	WL1271_STATE_ON,
	WL1271_STATE_PLT,
};

enum wl1271_partition_type {
	PART_DOWN,
	PART_WORK,
	PART_DRPW,

	PART_TABLE_LEN
};

struct wl1271_partition {
	u32 size;
	u32 start;
};

struct wl1271_partition_set {
	struct wl1271_partition mem;
	struct wl1271_partition reg;
	struct wl1271_partition mem2;
	struct wl1271_partition mem3;
};

struct wl1271;

/* FIXME: I'm not sure about this structure name */
struct wl1271_chip {
	u32 id;
	char fw_ver[21];
};

struct wl1271_stats {
	struct acx_statistics *fw_stats;
	unsigned long fw_stats_update;

	unsigned int retry_count;
	unsigned int excessive_retries;
};

struct wl1271_debugfs {
	struct dentry *rootdir;
	struct dentry *fw_statistics;

	struct dentry *tx_internal_desc_overflow;

	struct dentry *rx_out_of_mem;
	struct dentry *rx_hdr_overflow;
	struct dentry *rx_hw_stuck;
	struct dentry *rx_dropped;
	struct dentry *rx_fcs_err;
	struct dentry *rx_xfr_hint_trig;
	struct dentry *rx_path_reset;
	struct dentry *rx_reset_counter;

	struct dentry *dma_rx_requested;
	struct dentry *dma_rx_errors;
	struct dentry *dma_tx_requested;
	struct dentry *dma_tx_errors;

	struct dentry *isr_cmd_cmplt;
	struct dentry *isr_fiqs;
	struct dentry *isr_rx_headers;
	struct dentry *isr_rx_mem_overflow;
	struct dentry *isr_rx_rdys;
	struct dentry *isr_irqs;
	struct dentry *isr_tx_procs;
	struct dentry *isr_decrypt_done;
	struct dentry *isr_dma0_done;
	struct dentry *isr_dma1_done;
	struct dentry *isr_tx_exch_complete;
	struct dentry *isr_commands;
	struct dentry *isr_rx_procs;
	struct dentry *isr_hw_pm_mode_changes;
	struct dentry *isr_host_acknowledges;
	struct dentry *isr_pci_pm;
	struct dentry *isr_wakeups;
	struct dentry *isr_low_rssi;

	struct dentry *wep_addr_key_count;
	struct dentry *wep_default_key_count;
	/* skipping wep.reserved */
	struct dentry *wep_key_not_found;
	struct dentry *wep_decrypt_fail;
	struct dentry *wep_packets;
	struct dentry *wep_interrupt;

	struct dentry *pwr_ps_enter;
	struct dentry *pwr_elp_enter;
	struct dentry *pwr_missing_bcns;
	struct dentry *pwr_wake_on_host;
	struct dentry *pwr_wake_on_timer_exp;
	struct dentry *pwr_tx_with_ps;
	struct dentry *pwr_tx_without_ps;
	struct dentry *pwr_rcvd_beacons;
	struct dentry *pwr_power_save_off;
	struct dentry *pwr_enable_ps;
	struct dentry *pwr_disable_ps;
	struct dentry *pwr_fix_tsf_ps;
	/* skipping cont_miss_bcns_spread for now */
	struct dentry *pwr_rcvd_awake_beacons;

	struct dentry *mic_rx_pkts;
	struct dentry *mic_calc_failure;

	struct dentry *aes_encrypt_fail;
	struct dentry *aes_decrypt_fail;
	struct dentry *aes_encrypt_packets;
	struct dentry *aes_decrypt_packets;
	struct dentry *aes_encrypt_interrupt;
	struct dentry *aes_decrypt_interrupt;

	struct dentry *event_heart_beat;
	struct dentry *event_calibration;
	struct dentry *event_rx_mismatch;
	struct dentry *event_rx_mem_empty;
	struct dentry *event_rx_pool;
	struct dentry *event_oom_late;
	struct dentry *event_phy_transmit_error;
	struct dentry *event_tx_stuck;

	struct dentry *ps_pspoll_timeouts;
	struct dentry *ps_upsd_timeouts;
	struct dentry *ps_upsd_max_sptime;
	struct dentry *ps_upsd_max_apturn;
	struct dentry *ps_pspoll_max_apturn;
	struct dentry *ps_pspoll_utilization;
	struct dentry *ps_upsd_utilization;

	struct dentry *rxpipe_rx_prep_beacon_drop;
	struct dentry *rxpipe_descr_host_int_trig_rx_data;
	struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data;
	struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data;
	struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;

	struct dentry *tx_queue_len;

	struct dentry *retry_count;
	struct dentry *excessive_retries;
	struct dentry *gpio_power;
};

#define NUM_TX_QUEUES              4
#define NUM_RX_PKT_DESC            8

/* FW status registers */
struct wl1271_fw_status {
	__le32 intr;
	u8  fw_rx_counter;
	u8  drv_rx_counter;
	u8  reserved;
	u8  tx_results_counter;
	__le32 rx_pkt_descs[NUM_RX_PKT_DESC];
	__le32 tx_released_blks[NUM_TX_QUEUES];
	__le32 fw_localtime;
	__le32 padding[2];
} __attribute__ ((packed));

struct wl1271_rx_mem_pool_addr {
	u32 addr;
	u32 addr_extra;
};

struct wl1271_scan {
	u8 state;
	u8 ssid[IW_ESSID_MAX_SIZE+1];
	size_t ssid_len;
	u8 active;
	u8 high_prio;
	u8 probe_requests;
};

struct wl1271 {
	struct ieee80211_hw *hw;
	bool mac80211_registered;

	struct spi_device *spi;

	void (*set_power)(bool enable);
	int irq;

	spinlock_t wl_lock;

	enum wl1271_state state;
	struct mutex mutex;

#define WL1271_FLAG_STA_RATES_CHANGED  (0)
#define WL1271_FLAG_STA_ASSOCIATED     (1)
#define WL1271_FLAG_JOINED             (2)
#define WL1271_FLAG_GPIO_POWER         (3)
#define WL1271_FLAG_TX_QUEUE_STOPPED   (4)
#define WL1271_FLAG_SCANNING           (5)
#define WL1271_FLAG_IN_ELP             (6)
#define WL1271_FLAG_PSM                (7)
#define WL1271_FLAG_PSM_REQUESTED      (8)
	unsigned long flags;

	struct wl1271_partition_set part;

	struct wl1271_chip chip;

	int cmd_box_addr;
	int event_box_addr;

	u8 *fw;
	size_t fw_len;
	u8 *nvs;
	size_t nvs_len;

	u8 bssid[ETH_ALEN];
	u8 mac_addr[ETH_ALEN];
	u8 bss_type;
	u8 ssid[IW_ESSID_MAX_SIZE + 1];
	u8 ssid_len;
	int channel;

	struct wl1271_acx_mem_map *target_mem_map;

	/* Accounting for allocated / available TX blocks on HW */
	u32 tx_blocks_freed[NUM_TX_QUEUES];
	u32 tx_blocks_available;
	u8 tx_results_count;

	/* Transmitted TX packets counter for chipset interface */
	int tx_packets_count;

	/* Time-offset between host and chipset clocks */
	int time_offset;

	/* Session counter for the chipset */
	int session_counter;

	/* Frames scheduled for transmission, not handled yet */
	struct sk_buff_head tx_queue;

	struct work_struct tx_work;

	/* Pending TX frames */
	struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];

	/* Security sequence number counters */
	u8 tx_security_last_seq;
	u16 tx_security_seq_16;
	u32 tx_security_seq_32;

	/* FW Rx counter */
	u32 rx_counter;

	/* Rx memory pool address */
	struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;

	/* The target interrupt mask */
	struct work_struct irq_work;

	/* The mbox event mask */
	u32 event_mask;

	/* Mailbox pointers */
	u32 mbox_ptr[2];

	/* Are we currently scanning */
	struct wl1271_scan scan;

	/* Our association ID */
	u16 aid;

	/* currently configured rate set */
	u32 sta_rate_set;
	u32 basic_rate_set;
	u32 rate_set;

	/* The current band */
	enum ieee80211_band band;

	/* Default key (for WEP) */
	u32 default_key;

	unsigned int rx_config;
	unsigned int rx_filter;

	struct completion *elp_compl;
	struct delayed_work elp_work;

	/* retry counter for PSM entries */
	u8 psm_entry_retry;

	/* in dBm */
	int power_level;

	struct wl1271_stats stats;
	struct wl1271_debugfs debugfs;

	u32 buffer_32;
	u32 buffer_cmd;
	u32 buffer_busyword[WL1271_BUSY_WORD_CNT];

	struct wl1271_fw_status *fw_status;
	struct wl1271_tx_hw_res_if *tx_res_if;

	struct ieee80211_vif *vif;

	/* Current chipset configuration */
	struct conf_drv_settings conf;

	struct list_head list;
};

int wl1271_plt_start(struct wl1271 *wl);
int wl1271_plt_stop(struct wl1271 *wl);

#define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */

#define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */

#define WL1271_DEFAULT_POWER_LEVEL 0

#define WL1271_TX_QUEUE_MAX_LENGTH 20

/* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power
   on in case is has been shut down shortly before */
#define WL1271_PRE_POWER_ON_SLEEP 20 /* in miliseconds */
#define WL1271_POWER_ON_SLEEP 200 /* in miliseconds */

static inline bool wl1271_11a_enabled(void)
{
#ifdef WL1271_80211A_ENABLED
	return true;
#else
	return false;
#endif
}

#endif