2 * This file is part of wl1271
4 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
5 * Copyright (C) 2008-2009 Nokia Corporation
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
28 #include <linux/mutex.h>
29 #include <linux/completion.h>
30 #include <linux/spinlock.h>
31 #include <linux/list.h>
32 #include <linux/bitops.h>
33 #include <net/mac80211.h>
38 #define DRIVER_NAME "wl1271"
39 #define DRIVER_PREFIX DRIVER_NAME ": "
42 * FW versions support BA 11n
43 * versions marks x.x.x.50-60.x
45 #define WL12XX_BA_SUPPORT_FW_COST_VER2_START 50
46 #define WL12XX_BA_SUPPORT_FW_COST_VER2_END 60
53 DEBUG_MAILBOX
= BIT(3),
54 DEBUG_TESTMODE
= BIT(4),
61 DEBUG_MAC80211
= BIT(11),
65 DEBUG_FILTERS
= BIT(15),
66 DEBUG_ADHOC
= BIT(16),
68 DEBUG_MASTER
= (DEBUG_ADHOC
| DEBUG_AP
),
72 extern u32 wl12xx_debug_level
;
74 #define DEBUG_DUMP_LIMIT 1024
76 #define wl1271_error(fmt, arg...) \
77 pr_err(DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
79 #define wl1271_warning(fmt, arg...) \
80 pr_warning(DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
82 #define wl1271_notice(fmt, arg...) \
83 pr_info(DRIVER_PREFIX fmt "\n", ##arg)
85 #define wl1271_info(fmt, arg...) \
86 pr_info(DRIVER_PREFIX fmt "\n", ##arg)
88 #define wl1271_debug(level, fmt, arg...) \
90 if (level & wl12xx_debug_level) \
91 pr_debug(DRIVER_PREFIX fmt "\n", ##arg); \
94 /* TODO: use pr_debug_hex_dump when it will be available */
95 #define wl1271_dump(level, prefix, buf, len) \
97 if (level & wl12xx_debug_level) \
98 print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
99 DUMP_PREFIX_OFFSET, 16, 1, \
101 min_t(size_t, len, DEBUG_DUMP_LIMIT), \
105 #define wl1271_dump_ascii(level, prefix, buf, len) \
107 if (level & wl12xx_debug_level) \
108 print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
109 DUMP_PREFIX_OFFSET, 16, 1, \
111 min_t(size_t, len, DEBUG_DUMP_LIMIT), \
115 #define WL1271_DEFAULT_STA_RX_CONFIG (CFG_UNI_FILTER_EN | \
116 CFG_BSSID_FILTER_EN | \
119 #define WL1271_DEFAULT_STA_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN | \
120 CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
121 CFG_RX_CTL_EN | CFG_RX_BCN_EN | \
122 CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
124 #define WL1271_DEFAULT_AP_RX_CONFIG 0
126 #define WL1271_DEFAULT_AP_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PREQ_EN | \
127 CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
128 CFG_RX_CTL_EN | CFG_RX_AUTH_EN | \
133 #define WL1271_FW_NAME "wl1271-fw.bin"
134 #define WL1271_AP_FW_NAME "wl1271-fw-ap.bin"
136 #define WL1271_NVS_NAME "wl1271-nvs.bin"
138 #define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
139 #define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
141 #define WL1271_CIPHER_SUITE_GEM 0x00147201
143 #define WL1271_BUSY_WORD_CNT 1
144 #define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
146 #define WL1271_ELP_HW_STATE_ASLEEP 0
147 #define WL1271_ELP_HW_STATE_IRQ 1
149 #define WL1271_DEFAULT_BEACON_INT 100
150 #define WL1271_DEFAULT_DTIM_PERIOD 1
152 #define WL1271_AP_GLOBAL_HLID 0
153 #define WL1271_AP_BROADCAST_HLID 1
154 #define WL1271_AP_STA_HLID_START 2
156 #define WL1271_AP_BSS_INDEX 0
157 #define WL1271_AP_DEF_INACTIV_SEC 300
158 #define WL1271_AP_DEF_BEACON_EXP 20
160 #define ACX_TX_DESCRIPTORS 32
162 #define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
170 enum wl1271_partition_type
{
178 struct wl1271_partition
{
183 struct wl1271_partition_set
{
184 struct wl1271_partition mem
;
185 struct wl1271_partition reg
;
186 struct wl1271_partition mem2
;
187 struct wl1271_partition mem3
;
192 #define WL12XX_NUM_FW_VER 5
194 /* FIXME: I'm not sure about this structure name */
197 char fw_ver_str
[ETHTOOL_BUSINFO_LEN
];
198 unsigned int fw_ver
[WL12XX_NUM_FW_VER
];
201 struct wl1271_stats
{
202 struct acx_statistics
*fw_stats
;
203 unsigned long fw_stats_update
;
205 unsigned int retry_count
;
206 unsigned int excessive_retries
;
209 #define NUM_TX_QUEUES 4
210 #define NUM_RX_PKT_DESC 8
212 #define AP_MAX_STATIONS 5
214 /* Broadcast and Global links + links to stations */
215 #define AP_MAX_LINKS (AP_MAX_STATIONS + 2)
217 /* FW status registers */
218 struct wl1271_fw_status
{
223 u8 tx_results_counter
;
224 __le32 rx_pkt_descs
[NUM_RX_PKT_DESC
];
225 __le32 tx_released_blks
[NUM_TX_QUEUES
];
228 /* Next fields valid only in AP FW */
231 * A bitmap (where each bit represents a single HLID)
232 * to indicate if the station is in PS mode.
234 __le32 link_ps_bitmap
;
236 /* Number of freed MBs per HLID */
237 u8 tx_lnk_free_blks
[AP_MAX_LINKS
];
241 struct wl1271_rx_mem_pool_addr
{
247 struct cfg80211_scan_request
*req
;
251 u8 ssid
[IW_ESSID_MAX_SIZE
+1];
255 struct wl1271_if_operations
{
256 void (*read
)(struct wl1271
*wl
, int addr
, void *buf
, size_t len
,
258 void (*write
)(struct wl1271
*wl
, int addr
, void *buf
, size_t len
,
260 void (*reset
)(struct wl1271
*wl
);
261 void (*init
)(struct wl1271
*wl
);
262 int (*power
)(struct wl1271
*wl
, bool enable
);
263 struct device
* (*dev
)(struct wl1271
*wl
);
264 void (*enable_irq
)(struct wl1271
*wl
);
265 void (*disable_irq
)(struct wl1271
*wl
);
268 #define MAX_NUM_KEYS 14
269 #define MAX_KEY_SIZE 32
271 struct wl1271_ap_key
{
275 u8 key
[MAX_KEY_SIZE
];
282 struct platform_device
*plat_dev
;
283 struct ieee80211_hw
*hw
;
284 bool mac80211_registered
;
288 struct wl1271_if_operations
*if_ops
;
290 void (*set_power
)(bool enable
);
296 enum wl1271_state state
;
299 #define WL1271_FLAG_STA_RATES_CHANGED (0)
300 #define WL1271_FLAG_STA_ASSOCIATED (1)
301 #define WL1271_FLAG_JOINED (2)
302 #define WL1271_FLAG_GPIO_POWER (3)
303 #define WL1271_FLAG_TX_QUEUE_STOPPED (4)
304 #define WL1271_FLAG_IN_ELP (5)
305 #define WL1271_FLAG_PSM (6)
306 #define WL1271_FLAG_PSM_REQUESTED (7)
307 #define WL1271_FLAG_IRQ_PENDING (8)
308 #define WL1271_FLAG_IRQ_RUNNING (9)
309 #define WL1271_FLAG_IDLE (10)
310 #define WL1271_FLAG_IDLE_REQUESTED (11)
311 #define WL1271_FLAG_PSPOLL_FAILURE (12)
312 #define WL1271_FLAG_STA_STATE_SENT (13)
313 #define WL1271_FLAG_FW_TX_BUSY (14)
314 #define WL1271_FLAG_AP_STARTED (15)
317 struct wl1271_partition_set part
;
319 struct wl1271_chip chip
;
327 struct wl1271_nvs_file
*nvs
;
333 u8 mac_addr
[ETH_ALEN
];
336 u8 ssid
[IW_ESSID_MAX_SIZE
+ 1];
340 struct wl1271_acx_mem_map
*target_mem_map
;
342 /* Accounting for allocated / available TX blocks on HW */
343 u32 tx_blocks_freed
[NUM_TX_QUEUES
];
344 u32 tx_blocks_available
;
345 u32 tx_results_count
;
347 /* Transmitted TX packets counter for chipset interface */
348 u32 tx_packets_count
;
350 /* Time-offset between host and chipset clocks */
353 /* Session counter for the chipset */
356 /* Frames scheduled for transmission, not handled yet */
357 struct sk_buff_head tx_queue
[NUM_TX_QUEUES
];
360 struct work_struct tx_work
;
362 /* Pending TX frames */
363 unsigned long tx_frames_map
[BITS_TO_LONGS(ACX_TX_DESCRIPTORS
)];
364 struct sk_buff
*tx_frames
[ACX_TX_DESCRIPTORS
];
367 /* Security sequence number counters */
368 u8 tx_security_last_seq
;
374 /* Rx memory pool address */
375 struct wl1271_rx_mem_pool_addr rx_mem_pool_addr
;
377 /* Intermediate buffer, used for packet aggregation */
380 /* The target interrupt mask */
381 struct work_struct irq_work
;
383 /* Hardware recovery work */
384 struct work_struct recovery_work
;
386 /* The mbox event mask */
389 /* Mailbox pointers */
392 /* Are we currently scanning */
393 struct wl1271_scan scan
;
394 struct delayed_work scan_complete_work
;
396 /* probe-req template for the current AP */
397 struct sk_buff
*probereq
;
399 /* Our association ID */
403 * currently configured rate set:
404 * bits 0-15 - 802.11abg rates
405 * bits 16-23 - 802.11n MCS index mask
406 * support only 1 stream, thus only 8 bits for the MCS rates (0-7).
413 /* The current band */
414 enum ieee80211_band band
;
416 /* Beaconing interval (needed for ad-hoc) */
419 /* Default key (for WEP) */
422 unsigned int filters
;
423 unsigned int rx_config
;
424 unsigned int rx_filter
;
426 struct completion
*elp_compl
;
427 struct delayed_work elp_work
;
428 struct delayed_work pspoll_work
;
430 /* counter for ps-poll delivery failures */
431 int ps_poll_failures
;
433 /* retry counter for PSM entries */
442 struct wl1271_stats stats
;
446 u32 buffer_busyword
[WL1271_BUSY_WORD_CNT
];
448 struct wl1271_fw_status
*fw_status
;
449 struct wl1271_tx_hw_res_if
*tx_res_if
;
451 struct ieee80211_vif
*vif
;
453 /* Current chipset configuration */
454 struct conf_drv_settings conf
;
460 struct list_head list
;
462 /* Most recently reported noise in dBm */
465 /* map for HLIDs of associated stations - when operating in AP mode */
466 unsigned long ap_hlid_map
[BITS_TO_LONGS(AP_MAX_STATIONS
)];
468 /* recoreded keys for AP-mode - set here before AP startup */
469 struct wl1271_ap_key
*recorded_ap_keys
[MAX_NUM_KEYS
];
471 /* bands supported by this instance of wl12xx */
472 struct ieee80211_supported_band bands
[IEEE80211_NUM_BANDS
];
474 /* RX BA constraint value */
479 struct wl1271_station
{
483 int wl1271_plt_start(struct wl1271
*wl
);
484 int wl1271_plt_stop(struct wl1271
*wl
);
486 #define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
488 #define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
490 #define WL1271_DEFAULT_POWER_LEVEL 0
492 #define WL1271_TX_QUEUE_LOW_WATERMARK 10
493 #define WL1271_TX_QUEUE_HIGH_WATERMARK 25
495 /* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power
496 on in case is has been shut down shortly before */
497 #define WL1271_PRE_POWER_ON_SLEEP 20 /* in milliseconds */
498 #define WL1271_POWER_ON_SLEEP 200 /* in milliseconds */
500 /* Macros to handle wl1271.sta_rate_set */
501 #define HW_BG_RATES_MASK 0xffff
502 #define HW_HT_RATES_OFFSET 16