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"
37 #define DRIVER_NAME "wl1271"
38 #define DRIVER_PREFIX DRIVER_NAME ": "
45 DEBUG_MAILBOX = BIT(3),
46 DEBUG_NETLINK = BIT(4),
53 DEBUG_MAC80211 = BIT(11),
59 #define DEBUG_LEVEL (DEBUG_NONE)
61 #define DEBUG_DUMP_LIMIT 1024
63 #define wl1271_error(fmt, arg...) \
64 printk(KERN_ERR DRIVER_PREFIX "ERROR " fmt "\n", ##arg)
66 #define wl1271_warning(fmt, arg...) \
67 printk(KERN_WARNING DRIVER_PREFIX "WARNING " fmt "\n", ##arg)
69 #define wl1271_notice(fmt, arg...) \
70 printk(KERN_INFO DRIVER_PREFIX fmt "\n", ##arg)
72 #define wl1271_info(fmt, arg...) \
73 printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg)
75 #define wl1271_debug(level, fmt, arg...) \
77 if (level & DEBUG_LEVEL) \
78 printk(KERN_DEBUG DRIVER_PREFIX fmt "\n", ##arg); \
81 #define wl1271_dump(level, prefix, buf, len) \
83 if (level & DEBUG_LEVEL) \
84 print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
85 DUMP_PREFIX_OFFSET, 16, 1, \
87 min_t(size_t, len, DEBUG_DUMP_LIMIT), \
91 #define wl1271_dump_ascii(level, prefix, buf, len) \
93 if (level & DEBUG_LEVEL) \
94 print_hex_dump(KERN_DEBUG, DRIVER_PREFIX prefix, \
95 DUMP_PREFIX_OFFSET, 16, 1, \
97 min_t(size_t, len, DEBUG_DUMP_LIMIT), \
101 #define WL1271_DEFAULT_RX_CONFIG (CFG_UNI_FILTER_EN | \
102 CFG_BSSID_FILTER_EN | \
105 #define WL1271_DEFAULT_RX_FILTER (CFG_RX_RCTS_ACK | CFG_RX_PRSP_EN | \
106 CFG_RX_MGMT_EN | CFG_RX_DATA_EN | \
107 CFG_RX_CTL_EN | CFG_RX_BCN_EN | \
108 CFG_RX_AUTH_EN | CFG_RX_ASSOC_EN)
110 #define WL1271_DEFAULT_BASIC_RATE_SET (CONF_TX_RATE_MASK_ALL)
112 #define WL1271_FW_NAME "wl1271-fw.bin"
113 #define WL1271_NVS_NAME "wl1271-nvs.bin"
116 * Enable/disable 802.11a support for WL1273
118 #undef WL1271_80211A_ENABLED
121 * FIXME: for the wl1271, a busy word count of 1 here will result in a more
122 * optimal SPI interface. There is some SPI bug however, causing RXS time outs
123 * with this mode occasionally on boot, so lets have three for now. A value of
124 * three should make sure, that the chipset will always be ready, though this
125 * will impact throughput and latencies slightly.
127 #define WL1271_BUSY_WORD_CNT 3
128 #define WL1271_BUSY_WORD_LEN (WL1271_BUSY_WORD_CNT * sizeof(u32))
130 #define WL1271_ELP_HW_STATE_ASLEEP 0
131 #define WL1271_ELP_HW_STATE_IRQ 1
133 #define WL1271_DEFAULT_BEACON_INT 100
134 #define WL1271_DEFAULT_DTIM_PERIOD 1
136 #define ACX_TX_DESCRIPTORS 32
144 enum wl1271_partition_type {
152 struct wl1271_partition {
157 struct wl1271_partition_set {
158 struct wl1271_partition mem;
159 struct wl1271_partition reg;
160 struct wl1271_partition mem2;
161 struct wl1271_partition mem3;
166 /* FIXME: I'm not sure about this structure name */
172 struct wl1271_stats {
173 struct acx_statistics *fw_stats;
174 unsigned long fw_stats_update;
176 unsigned int retry_count;
177 unsigned int excessive_retries;
180 struct wl1271_debugfs {
181 struct dentry *rootdir;
182 struct dentry *fw_statistics;
184 struct dentry *tx_internal_desc_overflow;
186 struct dentry *rx_out_of_mem;
187 struct dentry *rx_hdr_overflow;
188 struct dentry *rx_hw_stuck;
189 struct dentry *rx_dropped;
190 struct dentry *rx_fcs_err;
191 struct dentry *rx_xfr_hint_trig;
192 struct dentry *rx_path_reset;
193 struct dentry *rx_reset_counter;
195 struct dentry *dma_rx_requested;
196 struct dentry *dma_rx_errors;
197 struct dentry *dma_tx_requested;
198 struct dentry *dma_tx_errors;
200 struct dentry *isr_cmd_cmplt;
201 struct dentry *isr_fiqs;
202 struct dentry *isr_rx_headers;
203 struct dentry *isr_rx_mem_overflow;
204 struct dentry *isr_rx_rdys;
205 struct dentry *isr_irqs;
206 struct dentry *isr_tx_procs;
207 struct dentry *isr_decrypt_done;
208 struct dentry *isr_dma0_done;
209 struct dentry *isr_dma1_done;
210 struct dentry *isr_tx_exch_complete;
211 struct dentry *isr_commands;
212 struct dentry *isr_rx_procs;
213 struct dentry *isr_hw_pm_mode_changes;
214 struct dentry *isr_host_acknowledges;
215 struct dentry *isr_pci_pm;
216 struct dentry *isr_wakeups;
217 struct dentry *isr_low_rssi;
219 struct dentry *wep_addr_key_count;
220 struct dentry *wep_default_key_count;
221 /* skipping wep.reserved */
222 struct dentry *wep_key_not_found;
223 struct dentry *wep_decrypt_fail;
224 struct dentry *wep_packets;
225 struct dentry *wep_interrupt;
227 struct dentry *pwr_ps_enter;
228 struct dentry *pwr_elp_enter;
229 struct dentry *pwr_missing_bcns;
230 struct dentry *pwr_wake_on_host;
231 struct dentry *pwr_wake_on_timer_exp;
232 struct dentry *pwr_tx_with_ps;
233 struct dentry *pwr_tx_without_ps;
234 struct dentry *pwr_rcvd_beacons;
235 struct dentry *pwr_power_save_off;
236 struct dentry *pwr_enable_ps;
237 struct dentry *pwr_disable_ps;
238 struct dentry *pwr_fix_tsf_ps;
239 /* skipping cont_miss_bcns_spread for now */
240 struct dentry *pwr_rcvd_awake_beacons;
242 struct dentry *mic_rx_pkts;
243 struct dentry *mic_calc_failure;
245 struct dentry *aes_encrypt_fail;
246 struct dentry *aes_decrypt_fail;
247 struct dentry *aes_encrypt_packets;
248 struct dentry *aes_decrypt_packets;
249 struct dentry *aes_encrypt_interrupt;
250 struct dentry *aes_decrypt_interrupt;
252 struct dentry *event_heart_beat;
253 struct dentry *event_calibration;
254 struct dentry *event_rx_mismatch;
255 struct dentry *event_rx_mem_empty;
256 struct dentry *event_rx_pool;
257 struct dentry *event_oom_late;
258 struct dentry *event_phy_transmit_error;
259 struct dentry *event_tx_stuck;
261 struct dentry *ps_pspoll_timeouts;
262 struct dentry *ps_upsd_timeouts;
263 struct dentry *ps_upsd_max_sptime;
264 struct dentry *ps_upsd_max_apturn;
265 struct dentry *ps_pspoll_max_apturn;
266 struct dentry *ps_pspoll_utilization;
267 struct dentry *ps_upsd_utilization;
269 struct dentry *rxpipe_rx_prep_beacon_drop;
270 struct dentry *rxpipe_descr_host_int_trig_rx_data;
271 struct dentry *rxpipe_beacon_buffer_thres_host_int_trig_rx_data;
272 struct dentry *rxpipe_missed_beacon_host_int_trig_rx_data;
273 struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data;
275 struct dentry *tx_queue_len;
277 struct dentry *retry_count;
278 struct dentry *excessive_retries;
281 #define NUM_TX_QUEUES 4
282 #define NUM_RX_PKT_DESC 8
284 /* FW status registers */
285 struct wl1271_fw_status {
290 u8 tx_results_counter;
291 u32 rx_pkt_descs[NUM_RX_PKT_DESC];
292 u32 tx_released_blks[NUM_TX_QUEUES];
295 } __attribute__ ((packed));
297 struct wl1271_rx_mem_pool_addr {
304 u8 ssid[IW_ESSID_MAX_SIZE+1];
312 struct ieee80211_hw *hw;
313 bool mac80211_registered;
315 struct spi_device *spi;
317 void (*set_power)(bool enable);
322 enum wl1271_state state;
325 struct wl1271_partition_set part;
327 struct wl1271_chip chip;
338 u8 mac_addr[ETH_ALEN];
340 u8 ssid[IW_ESSID_MAX_SIZE + 1];
344 struct wl1271_acx_mem_map *target_mem_map;
346 /* Accounting for allocated / available TX blocks on HW */
347 u32 tx_blocks_freed[NUM_TX_QUEUES];
348 u32 tx_blocks_available;
351 /* Transmitted TX packets counter for chipset interface */
352 int tx_packets_count;
354 /* Time-offset between host and chipset clocks */
357 /* Session counter for the chipset */
360 /* Frames scheduled for transmission, not handled yet */
361 struct sk_buff_head tx_queue;
362 bool tx_queue_stopped;
364 struct work_struct tx_work;
366 /* Pending TX frames */
367 struct sk_buff *tx_frames[ACX_TX_DESCRIPTORS];
369 /* Security sequence number counters */
370 u8 tx_security_last_seq;
371 u16 tx_security_seq_16;
372 u32 tx_security_seq_32;
377 /* Rx memory pool address */
378 struct wl1271_rx_mem_pool_addr rx_mem_pool_addr;
380 /* The target interrupt mask */
381 struct work_struct irq_work;
383 /* The mbox event mask */
386 /* Mailbox pointers */
389 /* Are we currently scanning */
391 struct wl1271_scan scan;
393 /* Our association ID */
396 /* currently configured rate set */
399 /* The current band */
400 enum ieee80211_band band;
402 /* Default key (for WEP) */
405 unsigned int rx_config;
406 unsigned int rx_filter;
408 /* is firmware in elp mode */
411 struct completion *elp_compl;
412 struct delayed_work elp_work;
414 /* we can be in psm, but not in elp, we have to differentiate */
417 /* PSM mode requested */
423 struct wl1271_stats stats;
424 struct wl1271_debugfs debugfs;
428 u32 buffer_busyword[WL1271_BUSY_WORD_CNT];
430 struct wl1271_fw_status *fw_status;
431 struct wl1271_tx_hw_res_if *tx_res_if;
433 struct ieee80211_vif *vif;
435 /* Used for a workaround to send disconnect before rejoining */
438 /* Current chipset configuration */
439 struct conf_drv_settings conf;
441 struct list_head list;
444 int wl1271_plt_start(struct wl1271 *wl);
445 int wl1271_plt_stop(struct wl1271 *wl);
447 #define JOIN_TIMEOUT 5000 /* 5000 milliseconds to join */
449 #define SESSION_COUNTER_MAX 7 /* maximum value for the session counter */
451 #define WL1271_DEFAULT_POWER_LEVEL 0
453 #define WL1271_TX_QUEUE_MAX_LENGTH 20
455 /* WL1271 needs a 200ms sleep after power on */
456 #define WL1271_POWER_ON_SLEEP 200 /* in miliseconds */
458 static inline bool wl1271_11a_enabled(void)
460 #ifdef WL1271_80211A_ENABLED