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>
35 #include "wl1271_conf.h"
36 #include "wl1271_ini.h"
38 #define DRIVER_NAME "wl1271"
39 #define DRIVER_PREFIX DRIVER_NAME ": "
46 DEBUG_MAILBOX
= BIT(3),
47 DEBUG_TESTMODE
= BIT(4),
54 DEBUG_MAC80211
= BIT(11),
58 DEBUG_FILTERS
= BIT(15),
59 DEBUG_ADHOC
= BIT(16),
63 #define DEBUG_LEVEL (DEBUG_NONE)
65 #define DEBUG_DUMP_LIMIT 1024
67 #define wl1271_error(fmt, arg...) \
68 printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
70 #define wl1271_warning(fmt, arg...) \
71 printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
73 #define wl1271_notice(fmt, arg...) \
74 printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)
76 #define wl1271_info(fmt, arg...) \
77 printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)
79 #define wl1271_debug(level, fmt, arg...) \
81 if (level & DEBUG_LEVEL) \
82 printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
85 #define wl1271_dump(level, prefix, buf, len) \
87 if (level & DEBUG_LEVEL) \
88 print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
89 DUMP_PREFIX_OFFSET, 16, 1, \
91 min_t(size_t, len, DEBUG_DUMP_LIMIT), \
95 #define wl1271_dump_ascii(level, prefix, buf, len) \
97 if (level & 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_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN | \
106 CFG_BSSID_FILTER_EN | \
109 #define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN | \
110 CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
111 CFG_RX_CTL_EN | CFG_RX_BCN_EN | \
112 CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
114 #define WL1271_FW_NAME "wl1271-fw.bin"
115 #define WL1271_NVS_NAME "wl1271-nvs.bin"
117 #define WL1271_TX_SECURITY_LO16(s) ((u16)((s) & 0xffff))
118 #define WL1271_TX_SECURITY_HI32(s) ((u32)(((s) >> 16) & 0xffffffff))
120 #define WL1271_CIPHER_SUITE_GEM 0x00147201
122 #define WL1271_BUSY_WORD_CNT 1
123 #define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
125 #define WL1271_ELP_HW_STATE_ASLEEP 0
126 #define WL1271_ELP_HW_STATE_IRQ 1
128 #define WL1271_DEFAULT_BEACON_INT 100
129 #define WL1271_DEFAULT_DTIM_PERIOD 1
131 #define ACX_TX_DESCRIPTORS 32
133 #define WL1271_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
141 enum wl1271_partition_type
{
149 struct wl1271_partition
{
154 struct wl1271_partition_set
{
155 struct wl1271_partition mem
;
156 struct wl1271_partition reg
;
157 struct wl1271_partition mem2
;
158 struct wl1271_partition mem3
;
163 /* FIXME: I'm not sure about this structure name */
169 struct wl1271_stats
{
170 struct acx_statistics
*fw_stats
;
171 unsigned long fw_stats_update
;
173 unsigned int retry_count
;
174 unsigned int excessive_retries
;
177 struct wl1271_debugfs
{
178 struct dentry
*rootdir
;
179 struct dentry
*fw_statistics
;
181 struct dentry
*tx_internal_desc_overflow
;
183 struct dentry
*rx_out_of_mem
;
184 struct dentry
*rx_hdr_overflow
;
185 struct dentry
*rx_hw_stuck
;
186 struct dentry
*rx_dropped
;
187 struct dentry
*rx_fcs_err
;
188 struct dentry
*rx_xfr_hint_trig
;
189 struct dentry
*rx_path_reset
;
190 struct dentry
*rx_reset_counter
;
192 struct dentry
*dma_rx_requested
;
193 struct dentry
*dma_rx_errors
;
194 struct dentry
*dma_tx_requested
;
195 struct dentry
*dma_tx_errors
;
197 struct dentry
*isr_cmd_cmplt
;
198 struct dentry
*isr_fiqs
;
199 struct dentry
*isr_rx_headers
;
200 struct dentry
*isr_rx_mem_overflow
;
201 struct dentry
*isr_rx_rdys
;
202 struct dentry
*isr_irqs
;
203 struct dentry
*isr_tx_procs
;
204 struct dentry
*isr_decrypt_done
;
205 struct dentry
*isr_dma0_done
;
206 struct dentry
*isr_dma1_done
;
207 struct dentry
*isr_tx_exch_complete
;
208 struct dentry
*isr_commands
;
209 struct dentry
*isr_rx_procs
;
210 struct dentry
*isr_hw_pm_mode_changes
;
211 struct dentry
*isr_host_acknowledges
;
212 struct dentry
*isr_pci_pm
;
213 struct dentry
*isr_wakeups
;
214 struct dentry
*isr_low_rssi
;
216 struct dentry
*wep_addr_key_count
;
217 struct dentry
*wep_default_key_count
;
218 /* skipping wep.reserved */
219 struct dentry
*wep_key_not_found
;
220 struct dentry
*wep_decrypt_fail
;
221 struct dentry
*wep_packets
;
222 struct dentry
*wep_interrupt
;
224 struct dentry
*pwr_ps_enter
;
225 struct dentry
*pwr_elp_enter
;
226 struct dentry
*pwr_missing_bcns
;
227 struct dentry
*pwr_wake_on_host
;
228 struct dentry
*pwr_wake_on_timer_exp
;
229 struct dentry
*pwr_tx_with_ps
;
230 struct dentry
*pwr_tx_without_ps
;
231 struct dentry
*pwr_rcvd_beacons
;
232 struct dentry
*pwr_power_save_off
;
233 struct dentry
*pwr_enable_ps
;
234 struct dentry
*pwr_disable_ps
;
235 struct dentry
*pwr_fix_tsf_ps
;
236 /* skipping cont_miss_bcns_spread for now */
237 struct dentry
*pwr_rcvd_awake_beacons
;
239 struct dentry
*mic_rx_pkts
;
240 struct dentry
*mic_calc_failure
;
242 struct dentry
*aes_encrypt_fail
;
243 struct dentry
*aes_decrypt_fail
;
244 struct dentry
*aes_encrypt_packets
;
245 struct dentry
*aes_decrypt_packets
;
246 struct dentry
*aes_encrypt_interrupt
;
247 struct dentry
*aes_decrypt_interrupt
;
249 struct dentry
*event_heart_beat
;
250 struct dentry
*event_calibration
;
251 struct dentry
*event_rx_mismatch
;
252 struct dentry
*event_rx_mem_empty
;
253 struct dentry
*event_rx_pool
;
254 struct dentry
*event_oom_late
;
255 struct dentry
*event_phy_transmit_error
;
256 struct dentry
*event_tx_stuck
;
258 struct dentry
*ps_pspoll_timeouts
;
259 struct dentry
*ps_upsd_timeouts
;
260 struct dentry
*ps_upsd_max_sptime
;
261 struct dentry
*ps_upsd_max_apturn
;
262 struct dentry
*ps_pspoll_max_apturn
;
263 struct dentry
*ps_pspoll_utilization
;
264 struct dentry
*ps_upsd_utilization
;
266 struct dentry
*rxpipe_rx_prep_beacon_drop
;
267 struct dentry
*rxpipe_descr_host_int_trig_rx_data
;
268 struct dentry
*rxpipe_beacon_buffer_thres_host_int_trig_rx_data
;
269 struct dentry
*rxpipe_missed_beacon_host_int_trig_rx_data
;
270 struct dentry
*rxpipe_tx_xfr_host_int_trig_rx_data
;
272 struct dentry
*tx_queue_len
;
274 struct dentry
*retry_count
;
275 struct dentry
*excessive_retries
;
276 struct dentry
*gpio_power
;
279 #define NUM_TX_QUEUES 4
280 #define NUM_RX_PKT_DESC 8
282 /* FW status registers */
283 struct wl1271_fw_status
{
288 u8 tx_results_counter
;
289 __le32 rx_pkt_descs
[NUM_RX_PKT_DESC
];
290 __le32 tx_released_blks
[NUM_TX_QUEUES
];
295 struct wl1271_rx_mem_pool_addr
{
301 struct cfg80211_scan_request
*req
;
305 u8 ssid
[IW_ESSID_MAX_SIZE
+1];
309 struct wl1271_if_operations
{
310 void (*read
)(struct wl1271
*wl
, int addr
, void *buf
, size_t len
,
312 void (*write
)(struct wl1271
*wl
, int addr
, void *buf
, size_t len
,
314 void (*reset
)(struct wl1271
*wl
);
315 void (*init
)(struct wl1271
*wl
);
316 int (*power
)(struct wl1271
*wl
, bool enable
);
317 struct device
* (*dev
)(struct wl1271
*wl
);
318 void (*enable_irq
)(struct wl1271
*wl
);
319 void (*disable_irq
)(struct wl1271
*wl
);
323 struct platform_device
*plat_dev
;
324 struct ieee80211_hw
*hw
;
325 bool mac80211_registered
;
329 struct wl1271_if_operations
*if_ops
;
331 void (*set_power
)(bool enable
);
337 enum wl1271_state state
;
340 #define WL1271_FLAG_STA_RATES_CHANGED (0)
341 #define WL1271_FLAG_STA_ASSOCIATED (1)
342 #define WL1271_FLAG_JOINED (2)
343 #define WL1271_FLAG_GPIO_POWER (3)
344 #define WL1271_FLAG_TX_QUEUE_STOPPED (4)
345 #define WL1271_FLAG_IN_ELP (5)
346 #define WL1271_FLAG_PSM (6)
347 #define WL1271_FLAG_PSM_REQUESTED (7)
348 #define WL1271_FLAG_IRQ_PENDING (8)
349 #define WL1271_FLAG_IRQ_RUNNING (9)
350 #define WL1271_FLAG_IDLE (10)
351 #define WL1271_FLAG_IDLE_REQUESTED (11)
352 #define WL1271_FLAG_PSPOLL_FAILURE (12)
353 #define WL1271_FLAG_STA_STATE_SENT (13)
354 #define WL1271_FLAG_FW_TX_BUSY (14)
357 struct wl1271_partition_set part
;
359 struct wl1271_chip chip
;
366 struct wl1271_nvs_file
*nvs
;
372 u8 mac_addr
[ETH_ALEN
];
375 u8 ssid
[IW_ESSID_MAX_SIZE
+ 1];
379 struct wl1271_acx_mem_map
*target_mem_map
;
381 /* Accounting for allocated / available TX blocks on HW */
382 u32 tx_blocks_freed
[NUM_TX_QUEUES
];
383 u32 tx_blocks_available
;
384 u32 tx_results_count
;
386 /* Transmitted TX packets counter for chipset interface */
387 u32 tx_packets_count
;
389 /* Time-offset between host and chipset clocks */
392 /* Session counter for the chipset */
395 /* Frames scheduled for transmission, not handled yet */
396 struct sk_buff_head tx_queue
;
398 struct work_struct tx_work
;
400 /* Pending TX frames */
401 unsigned long tx_frames_map
[BITS_TO_LONGS(ACX_TX_DESCRIPTORS
)];
402 struct sk_buff
*tx_frames
[ACX_TX_DESCRIPTORS
];
405 /* Security sequence number counters */
406 u8 tx_security_last_seq
;
412 /* Rx memory pool address */
413 struct wl1271_rx_mem_pool_addr rx_mem_pool_addr
;
415 /* Intermediate buffer, used for packet aggregation */
418 /* The target interrupt mask */
419 struct work_struct irq_work
;
421 /* Hardware recovery work */
422 struct work_struct recovery_work
;
424 /* The mbox event mask */
427 /* Mailbox pointers */
430 /* Are we currently scanning */
431 struct wl1271_scan scan
;
432 struct delayed_work scan_complete_work
;
434 /* Our association ID */
437 /* currently configured rate set */
443 /* The current band */
444 enum ieee80211_band band
;
446 /* Beaconing interval (needed for ad-hoc) */
449 /* Default key (for WEP) */
452 unsigned int filters
;
453 unsigned int rx_config
;
454 unsigned int rx_filter
;
456 struct completion
*elp_compl
;
457 struct delayed_work elp_work
;
458 struct delayed_work pspoll_work
;
460 /* counter for ps-poll delivery failures */
461 int ps_poll_failures
;
463 /* retry counter for PSM entries */
472 struct wl1271_stats stats
;
473 struct wl1271_debugfs debugfs
;
477 u32 buffer_busyword
[WL1271_BUSY_WORD_CNT
];
479 struct wl1271_fw_status
*fw_status
;
480 struct wl1271_tx_hw_res_if
*tx_res_if
;
482 struct ieee80211_vif
*vif
;
484 /* Current chipset configuration */
485 struct conf_drv_settings conf
;
491 struct list_head list
;
493 /* Most recently reported noise in dBm */
497 int wl1271_plt_start(struct wl1271
*wl
);
498 int wl1271_plt_stop(struct wl1271
*wl
);
500 #define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
502 #define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
504 #define WL1271_DEFAULT_POWER_LEVEL 0
506 #define WL1271_TX_QUEUE_LOW_WATERMARK 10
507 #define WL1271_TX_QUEUE_HIGH_WATERMARK 25
509 /* WL1271 needs a 200ms sleep after power on, and a 20ms sleep before power
510 on in case is has been shut down shortly before */
511 #define WL1271_PRE_POWER_ON_SLEEP 20 /* in miliseconds */
512 #define WL1271_POWER_ON_SLEEP 200 /* in miliseconds */