1/******************************************************************************
2
3 Copyright(c) 2003 - 2006 Intel Corporation. All rights reserved.
4
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of version 2 of the GNU General Public License as
7 published by the Free Software Foundation.
8
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 more details.
13
14 You should have received a copy of the GNU General Public License along with
15 this program; if not, write to the Free Software Foundation, Inc., 59
16 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 The full GNU General Public License is included in this distribution in the
19 file called LICENSE.
20
21 Contact Information:
22 Intel Linux Wireless <ilw@linux.intel.com>
23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24
25 Portions of this file are based on the sample_* files provided by Wireless
26 Extensions 0.26 package and copyright (c) 1997-2003 Jean Tourrilhes
27 <jt@hpl.hp.com>
28
29 Portions of this file are based on the Host AP project,
30 Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
31 <j@w1.fi>
32 Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
33
34 Portions of ipw2100_mod_firmware_load, ipw2100_do_mod_firmware_load, and
35 ipw2100_fw_load are loosely based on drivers/sound/sound_firmware.c
36 available in the 2.4.25 kernel sources, and are copyright (c) Alan Cox
37
38******************************************************************************/
39/*
40
41 Initial driver on which this is based was developed by Janusz Gorycki,
42 Maciej Urbaniak, and Maciej Sosnowski.
43
44 Promiscuous mode support added by Jacek Wysoczynski and Maciej Urbaniak.
45
46Theory of Operation
47
48Tx - Commands and Data
49
50Firmware and host share a circular queue of Transmit Buffer Descriptors (TBDs)
51Each TBD contains a pointer to the physical (dma_addr_t) address of data being
52sent to the firmware as well as the length of the data.
53
54The host writes to the TBD queue at the WRITE index. The WRITE index points
55to the _next_ packet to be written and is advanced when after the TBD has been
56filled.
57
58The firmware pulls from the TBD queue at the READ index. The READ index points
59to the currently being read entry, and is advanced once the firmware is
60done with a packet.
61
62When data is sent to the firmware, the first TBD is used to indicate to the
63firmware if a Command or Data is being sent. If it is Command, all of the
64command information is contained within the physical address referred to by the
65TBD. If it is Data, the first TBD indicates the type of data packet, number
66of fragments, etc. The next TBD then refers to the actual packet location.
67
68The Tx flow cycle is as follows:
69
701) ipw2100_tx() is called by kernel with SKB to transmit
712) Packet is move from the tx_free_list and appended to the transmit pending
72 list (tx_pend_list)
733) work is scheduled to move pending packets into the shared circular queue.
744) when placing packet in the circular queue, the incoming SKB is DMA mapped
75 to a physical address. That address is entered into a TBD. Two TBDs are
76 filled out. The first indicating a data packet, the second referring to the
77 actual payload data.
785) the packet is removed from tx_pend_list and placed on the end of the
79 firmware pending list (fw_pend_list)
806) firmware is notified that the WRITE index has
817) Once the firmware has processed the TBD, INTA is triggered.
828) For each Tx interrupt received from the firmware, the READ index is checked
83 to see which TBDs are done being processed.
849) For each TBD that has been processed, the ISR pulls the oldest packet
85 from the fw_pend_list.
8610)The packet structure contained in the fw_pend_list is then used
87 to unmap the DMA address and to free the SKB originally passed to the driver
88 from the kernel.
8911)The packet structure is placed onto the tx_free_list
90
91The above steps are the same for commands, only the msg_free_list/msg_pend_list
92are used instead of tx_free_list/tx_pend_list
93
94...
95
96Critical Sections / Locking :
97
98There are two locks utilized. The first is the low level lock (priv->low_lock)
99that protects the following:
100
101- Access to the Tx/Rx queue lists via priv->low_lock. The lists are as follows:
102
103 tx_free_list : Holds pre-allocated Tx buffers.
104 TAIL modified in __ipw2100_tx_process()
105 HEAD modified in ipw2100_tx()
106
107 tx_pend_list : Holds used Tx buffers waiting to go into the TBD ring
108 TAIL modified ipw2100_tx()
109 HEAD modified by ipw2100_tx_send_data()
110
111 msg_free_list : Holds pre-allocated Msg (Command) buffers
112 TAIL modified in __ipw2100_tx_process()
113 HEAD modified in ipw2100_hw_send_command()
114
115 msg_pend_list : Holds used Msg buffers waiting to go into the TBD ring
116 TAIL modified in ipw2100_hw_send_command()
117 HEAD modified in ipw2100_tx_send_commands()
118
119 The flow of data on the TX side is as follows:
120
121 MSG_FREE_LIST + COMMAND => MSG_PEND_LIST => TBD => MSG_FREE_LIST
122 TX_FREE_LIST + DATA => TX_PEND_LIST => TBD => TX_FREE_LIST
123
124 The methods that work on the TBD ring are protected via priv->low_lock.
125
126- The internal data state of the device itself
127- Access to the firmware read/write indexes for the BD queues
128 and associated logic
129
130All external entry functions are locked with the priv->action_lock to ensure
131that only one external action is invoked at a time.
132
133
134*/
135
136#include <linux/compiler.h>
137#include <linux/errno.h>
138#include <linux/if_arp.h>
139#include <linux/in6.h>
140#include <linux/in.h>
141#include <linux/ip.h>
142#include <linux/kernel.h>
143#include <linux/kmod.h>
144#include <linux/module.h>
145#include <linux/netdevice.h>
146#include <linux/ethtool.h>
147#include <linux/pci.h>
148#include <linux/dma-mapping.h>
149#include <linux/proc_fs.h>
150#include <linux/skbuff.h>
151#include <linux/uaccess.h>
152#include <asm/io.h>
153#include <linux/fs.h>
154#include <linux/mm.h>
155#include <linux/slab.h>
156#include <linux/unistd.h>
157#include <linux/stringify.h>
158#include <linux/tcp.h>
159#include <linux/types.h>
160#include <linux/time.h>
161#include <linux/firmware.h>
162#include <linux/acpi.h>
163#include <linux/ctype.h>
164#include <linux/pm_qos.h>
165
166#include <net/lib80211.h>
167
168#include "ipw2100.h"
169#include "ipw.h"
170
171#define IPW2100_VERSION "git-1.2.2"
172
173#define DRV_NAME "ipw2100"
174#define DRV_VERSION IPW2100_VERSION
175#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
176#define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation"
177
178static struct pm_qos_request ipw2100_pm_qos_req;
179
180/* Debugging stuff */
181#ifdef CONFIG_IPW2100_DEBUG
182#define IPW2100_RX_DEBUG /* Reception debugging */
183#endif
184
185MODULE_DESCRIPTION(DRV_DESCRIPTION);
186MODULE_VERSION(DRV_VERSION);
187MODULE_AUTHOR(DRV_COPYRIGHT);
188MODULE_LICENSE("GPL");
189
190static int debug = 0;
191static int network_mode = 0;
192static int channel = 0;
193static int associate = 0;
194static int disable = 0;
195#ifdef CONFIG_PM
196static struct ipw2100_fw ipw2100_firmware;
197#endif
198
199#include <linux/moduleparam.h>
200module_param(debug, int, 0444);
201module_param_named(mode, network_mode, int, 0444);
202module_param(channel, int, 0444);
203module_param(associate, int, 0444);
204module_param(disable, int, 0444);
205
206MODULE_PARM_DESC(debug, "debug level");
207MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
208MODULE_PARM_DESC(channel, "channel");
209MODULE_PARM_DESC(associate, "auto associate when scanning (default off)");
210MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
211
212static u32 ipw2100_debug_level = IPW_DL_NONE;
213
214#ifdef CONFIG_IPW2100_DEBUG
215#define IPW_DEBUG(level, message...) \
216do { \
217 if (ipw2100_debug_level & (level)) { \
218 printk(KERN_DEBUG "ipw2100: %c %s ", \
219 in_interrupt() ? 'I' : 'U', __func__); \
220 printk(message); \
221 } \
222} while (0)
223#else
224#define IPW_DEBUG(level, message...) do {} while (0)
225#endif /* CONFIG_IPW2100_DEBUG */
226
227#ifdef CONFIG_IPW2100_DEBUG
228static const char *command_types[] = {
229 "undefined",
230 "unused", /* HOST_ATTENTION */
231 "HOST_COMPLETE",
232 "unused", /* SLEEP */
233 "unused", /* HOST_POWER_DOWN */
234 "unused",
235 "SYSTEM_CONFIG",
236 "unused", /* SET_IMR */
237 "SSID",
238 "MANDATORY_BSSID",
239 "AUTHENTICATION_TYPE",
240 "ADAPTER_ADDRESS",
241 "PORT_TYPE",
242 "INTERNATIONAL_MODE",
243 "CHANNEL",
244 "RTS_THRESHOLD",
245 "FRAG_THRESHOLD",
246 "POWER_MODE",
247 "TX_RATES",
248 "BASIC_TX_RATES",
249 "WEP_KEY_INFO",
250 "unused",
251 "unused",
252 "unused",
253 "unused",
254 "WEP_KEY_INDEX",
255 "WEP_FLAGS",
256 "ADD_MULTICAST",
257 "CLEAR_ALL_MULTICAST",
258 "BEACON_INTERVAL",
259 "ATIM_WINDOW",
260 "CLEAR_STATISTICS",
261 "undefined",
262 "undefined",
263 "undefined",
264 "undefined",
265 "TX_POWER_INDEX",
266 "undefined",
267 "undefined",
268 "undefined",
269 "undefined",
270 "undefined",
271 "undefined",
272 "BROADCAST_SCAN",
273 "CARD_DISABLE",
274 "PREFERRED_BSSID",
275 "SET_SCAN_OPTIONS",
276 "SCAN_DWELL_TIME",
277 "SWEEP_TABLE",
278 "AP_OR_STATION_TABLE",
279 "GROUP_ORDINALS",
280 "SHORT_RETRY_LIMIT",
281 "LONG_RETRY_LIMIT",
282 "unused", /* SAVE_CALIBRATION */
283 "unused", /* RESTORE_CALIBRATION */
284 "undefined",
285 "undefined",
286 "undefined",
287 "HOST_PRE_POWER_DOWN",
288 "unused", /* HOST_INTERRUPT_COALESCING */
289 "undefined",
290 "CARD_DISABLE_PHY_OFF",
291 "MSDU_TX_RATES",
292 "undefined",
293 "SET_STATION_STAT_BITS",
294 "CLEAR_STATIONS_STAT_BITS",
295 "LEAP_ROGUE_MODE",
296 "SET_SECURITY_INFORMATION",
297 "DISASSOCIATION_BSSID",
298 "SET_WPA_ASS_IE"
299};
300#endif
301
302static const long ipw2100_frequencies[] = {
303 2412, 2417, 2422, 2427,
304 2432, 2437, 2442, 2447,
305 2452, 2457, 2462, 2467,
306 2472, 2484
307};
308
309#define FREQ_COUNT ARRAY_SIZE(ipw2100_frequencies)
310
311static struct ieee80211_rate ipw2100_bg_rates[] = {
312 { .bitrate = 10 },
313 { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
314 { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
315 { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
316};
317
318#define RATE_COUNT ARRAY_SIZE(ipw2100_bg_rates)
319
320/* Pre-decl until we get the code solid and then we can clean it up */
321static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
322static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
323static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
324
325static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
326static void ipw2100_queues_free(struct ipw2100_priv *priv);
327static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
328
329static int ipw2100_fw_download(struct ipw2100_priv *priv,
330 struct ipw2100_fw *fw);
331static int ipw2100_get_firmware(struct ipw2100_priv *priv,
332 struct ipw2100_fw *fw);
333static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
334 size_t max);
335static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
336 size_t max);
337static void ipw2100_release_firmware(struct ipw2100_priv *priv,
338 struct ipw2100_fw *fw);
339static int ipw2100_ucode_download(struct ipw2100_priv *priv,
340 struct ipw2100_fw *fw);
341static void ipw2100_wx_event_work(struct work_struct *work);
342static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
343static const struct iw_handler_def ipw2100_wx_handler_def;
344
345static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
346{
347 struct ipw2100_priv *priv = libipw_priv(dev);
348
349 *val = ioread32(priv->ioaddr + reg);
350 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
351}
352
353static inline void write_register(struct net_device *dev, u32 reg, u32 val)
354{
355 struct ipw2100_priv *priv = libipw_priv(dev);
356
357 iowrite32(val, priv->ioaddr + reg);
358 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
359}
360
361static inline void read_register_word(struct net_device *dev, u32 reg,
362 u16 * val)
363{
364 struct ipw2100_priv *priv = libipw_priv(dev);
365
366 *val = ioread16(priv->ioaddr + reg);
367 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
368}
369
370static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
371{
372 struct ipw2100_priv *priv = libipw_priv(dev);
373
374 *val = ioread8(priv->ioaddr + reg);
375 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
376}
377
378static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
379{
380 struct ipw2100_priv *priv = libipw_priv(dev);
381
382 iowrite16(val, priv->ioaddr + reg);
383 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
384}
385
386static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
387{
388 struct ipw2100_priv *priv = libipw_priv(dev);
389
390 iowrite8(val, priv->ioaddr + reg);
391 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
392}
393
394static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
395{
396 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
397 addr & IPW_REG_INDIRECT_ADDR_MASK);
398 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
399}
400
401static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
402{
403 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
404 addr & IPW_REG_INDIRECT_ADDR_MASK);
405 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
406}
407
408static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
409{
410 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
411 addr & IPW_REG_INDIRECT_ADDR_MASK);
412 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
413}
414
415static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
416{
417 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
418 addr & IPW_REG_INDIRECT_ADDR_MASK);
419 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
420}
421
422static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
423{
424 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
425 addr & IPW_REG_INDIRECT_ADDR_MASK);
426 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
427}
428
429static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
430{
431 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
432 addr & IPW_REG_INDIRECT_ADDR_MASK);
433 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
434}
435
436static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
437{
438 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
439 addr & IPW_REG_INDIRECT_ADDR_MASK);
440}
441
442static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
443{
444 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
445}
446
447static void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
448 const u8 * buf)
449{
450 u32 aligned_addr;
451 u32 aligned_len;
452 u32 dif_len;
453 u32 i;
454
455 /* read first nibble byte by byte */
456 aligned_addr = addr & (~0x3);
457 dif_len = addr - aligned_addr;
458 if (dif_len) {
459 /* Start reading at aligned_addr + dif_len */
460 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
461 aligned_addr);
462 for (i = dif_len; i < 4; i++, buf++)
463 write_register_byte(dev,
464 IPW_REG_INDIRECT_ACCESS_DATA + i,
465 *buf);
466
467 len -= dif_len;
468 aligned_addr += 4;
469 }
470
471 /* read DWs through autoincrement registers */
472 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
473 aligned_len = len & (~0x3);
474 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
475 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
476
477 /* copy the last nibble */
478 dif_len = len - aligned_len;
479 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
480 for (i = 0; i < dif_len; i++, buf++)
481 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
482 *buf);
483}
484
485static void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
486 u8 * buf)
487{
488 u32 aligned_addr;
489 u32 aligned_len;
490 u32 dif_len;
491 u32 i;
492
493 /* read first nibble byte by byte */
494 aligned_addr = addr & (~0x3);
495 dif_len = addr - aligned_addr;
496 if (dif_len) {
497 /* Start reading at aligned_addr + dif_len */
498 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
499 aligned_addr);
500 for (i = dif_len; i < 4; i++, buf++)
501 read_register_byte(dev,
502 IPW_REG_INDIRECT_ACCESS_DATA + i,
503 buf);
504
505 len -= dif_len;
506 aligned_addr += 4;
507 }
508
509 /* read DWs through autoincrement registers */
510 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
511 aligned_len = len & (~0x3);
512 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
513 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
514
515 /* copy the last nibble */
516 dif_len = len - aligned_len;
517 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
518 for (i = 0; i < dif_len; i++, buf++)
519 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
520}
521
522static bool ipw2100_hw_is_adapter_in_system(struct net_device *dev)
523{
524 u32 dbg;
525
526 read_register(dev, IPW_REG_DOA_DEBUG_AREA_START, &dbg);
527
528 return dbg == IPW_DATA_DOA_DEBUG_VALUE;
529}
530
531static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
532 void *val, u32 * len)
533{
534 struct ipw2100_ordinals *ordinals = &priv->ordinals;
535 u32 addr;
536 u32 field_info;
537 u16 field_len;
538 u16 field_count;
539 u32 total_length;
540
541 if (ordinals->table1_addr == 0) {
542 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
543 "before they have been loaded.\n");
544 return -EINVAL;
545 }
546
547 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
548 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
549 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
550
551 printk(KERN_WARNING DRV_NAME
552 ": ordinal buffer length too small, need %zd\n",
553 IPW_ORD_TAB_1_ENTRY_SIZE);
554
555 return -EINVAL;
556 }
557
558 read_nic_dword(priv->net_dev,
559 ordinals->table1_addr + (ord << 2), &addr);
560 read_nic_dword(priv->net_dev, addr, val);
561
562 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
563
564 return 0;
565 }
566
567 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
568
569 ord -= IPW_START_ORD_TAB_2;
570
571 /* get the address of statistic */
572 read_nic_dword(priv->net_dev,
573 ordinals->table2_addr + (ord << 3), &addr);
574
575 /* get the second DW of statistics ;
576 * two 16-bit words - first is length, second is count */
577 read_nic_dword(priv->net_dev,
578 ordinals->table2_addr + (ord << 3) + sizeof(u32),
579 &field_info);
580
581 /* get each entry length */
582 field_len = *((u16 *) & field_info);
583
584 /* get number of entries */
585 field_count = *(((u16 *) & field_info) + 1);
586
587 /* abort if no enough memory */
588 total_length = field_len * field_count;
589 if (total_length > *len) {
590 *len = total_length;
591 return -EINVAL;
592 }
593
594 *len = total_length;
595 if (!total_length)
596 return 0;
597
598 /* read the ordinal data from the SRAM */
599 read_nic_memory(priv->net_dev, addr, total_length, val);
600
601 return 0;
602 }
603
604 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
605 "in table 2\n", ord);
606
607 return -EINVAL;
608}
609
610static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
611 u32 * len)
612{
613 struct ipw2100_ordinals *ordinals = &priv->ordinals;
614 u32 addr;
615
616 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
617 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
618 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
619 IPW_DEBUG_INFO("wrong size\n");
620 return -EINVAL;
621 }
622
623 read_nic_dword(priv->net_dev,
624 ordinals->table1_addr + (ord << 2), &addr);
625
626 write_nic_dword(priv->net_dev, addr, *val);
627
628 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
629
630 return 0;
631 }
632
633 IPW_DEBUG_INFO("wrong table\n");
634 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
635 return -EINVAL;
636
637 return -EINVAL;
638}
639
640static char *snprint_line(char *buf, size_t count,
641 const u8 * data, u32 len, u32 ofs)
642{
643 int out, i, j, l;
644 char c;
645
646 out = snprintf(buf, count, "%08X", ofs);
647
648 for (l = 0, i = 0; i < 2; i++) {
649 out += snprintf(buf + out, count - out, " ");
650 for (j = 0; j < 8 && l < len; j++, l++)
651 out += snprintf(buf + out, count - out, "%02X ",
652 data[(i * 8 + j)]);
653 for (; j < 8; j++)
654 out += snprintf(buf + out, count - out, " ");
655 }
656
657 out += snprintf(buf + out, count - out, " ");
658 for (l = 0, i = 0; i < 2; i++) {
659 out += snprintf(buf + out, count - out, " ");
660 for (j = 0; j < 8 && l < len; j++, l++) {
661 c = data[(i * 8 + j)];
662 if (!isascii(c) || !isprint(c))
663 c = '.';
664
665 out += snprintf(buf + out, count - out, "%c", c);
666 }
667
668 for (; j < 8; j++)
669 out += snprintf(buf + out, count - out, " ");
670 }
671
672 return buf;
673}
674
675static void printk_buf(int level, const u8 * data, u32 len)
676{
677 char line[81];
678 u32 ofs = 0;
679 if (!(ipw2100_debug_level & level))
680 return;
681
682 while (len) {
683 printk(KERN_DEBUG "%s\n",
684 snprint_line(line, sizeof(line), &data[ofs],
685 min(len, 16U), ofs));
686 ofs += 16;
687 len -= min(len, 16U);
688 }
689}
690
691#define MAX_RESET_BACKOFF 10
692
693static void schedule_reset(struct ipw2100_priv *priv)
694{
695 time64_t now = ktime_get_boottime_seconds();
696
697 /* If we haven't received a reset request within the backoff period,
698 * then we can reset the backoff interval so this reset occurs
699 * immediately */
700 if (priv->reset_backoff &&
701 (now - priv->last_reset > priv->reset_backoff))
702 priv->reset_backoff = 0;
703
704 priv->last_reset = now;
705
706 if (!(priv->status & STATUS_RESET_PENDING)) {
707 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%llds).\n",
708 priv->net_dev->name, priv->reset_backoff);
709 netif_carrier_off(priv->net_dev);
710 netif_stop_queue(priv->net_dev);
711 priv->status |= STATUS_RESET_PENDING;
712 if (priv->reset_backoff)
713 schedule_delayed_work(&priv->reset_work,
714 priv->reset_backoff * HZ);
715 else
716 schedule_delayed_work(&priv->reset_work, 0);
717
718 if (priv->reset_backoff < MAX_RESET_BACKOFF)
719 priv->reset_backoff++;
720
721 wake_up_interruptible(&priv->wait_command_queue);
722 } else
723 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
724 priv->net_dev->name);
725
726}
727
728#define HOST_COMPLETE_TIMEOUT (2 * HZ)
729static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
730 struct host_command *cmd)
731{
732 struct list_head *element;
733 struct ipw2100_tx_packet *packet;
734 unsigned long flags;
735 int err = 0;
736
737 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
738 command_types[cmd->host_command], cmd->host_command,
739 cmd->host_command_length);
740 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
741 cmd->host_command_length);
742
743 spin_lock_irqsave(&priv->low_lock, flags);
744
745 if (priv->fatal_error) {
746 IPW_DEBUG_INFO
747 ("Attempt to send command while hardware in fatal error condition.\n");
748 err = -EIO;
749 goto fail_unlock;
750 }
751
752 if (!(priv->status & STATUS_RUNNING)) {
753 IPW_DEBUG_INFO
754 ("Attempt to send command while hardware is not running.\n");
755 err = -EIO;
756 goto fail_unlock;
757 }
758
759 if (priv->status & STATUS_CMD_ACTIVE) {
760 IPW_DEBUG_INFO
761 ("Attempt to send command while another command is pending.\n");
762 err = -EBUSY;
763 goto fail_unlock;
764 }
765
766 if (list_empty(&priv->msg_free_list)) {
767 IPW_DEBUG_INFO("no available msg buffers\n");
768 goto fail_unlock;
769 }
770
771 priv->status |= STATUS_CMD_ACTIVE;
772 priv->messages_sent++;
773
774 element = priv->msg_free_list.next;
775
776 packet = list_entry(element, struct ipw2100_tx_packet, list);
777 packet->jiffy_start = jiffies;
778
779 /* initialize the firmware command packet */
780 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
781 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
782 packet->info.c_struct.cmd->host_command_len_reg =
783 cmd->host_command_length;
784 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
785
786 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
787 cmd->host_command_parameters,
788 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
789
790 list_del(element);
791 DEC_STAT(&priv->msg_free_stat);
792
793 list_add_tail(element, &priv->msg_pend_list);
794 INC_STAT(&priv->msg_pend_stat);
795
796 ipw2100_tx_send_commands(priv);
797 ipw2100_tx_send_data(priv);
798
799 spin_unlock_irqrestore(&priv->low_lock, flags);
800
801 /*
802 * We must wait for this command to complete before another
803 * command can be sent... but if we wait more than 3 seconds
804 * then there is a problem.
805 */
806
807 err =
808 wait_event_interruptible_timeout(priv->wait_command_queue,
809 !(priv->
810 status & STATUS_CMD_ACTIVE),
811 HOST_COMPLETE_TIMEOUT);
812
813 if (err == 0) {
814 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
815 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
816 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
817 priv->status &= ~STATUS_CMD_ACTIVE;
818 schedule_reset(priv);
819 return -EIO;
820 }
821
822 if (priv->fatal_error) {
823 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
824 priv->net_dev->name);
825 return -EIO;
826 }
827
828 /* !!!!! HACK TEST !!!!!
829 * When lots of debug trace statements are enabled, the driver
830 * doesn't seem to have as many firmware restart cycles...
831 *
832 * As a test, we're sticking in a 1/100s delay here */
833 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
834
835 return 0;
836
837 fail_unlock:
838 spin_unlock_irqrestore(&priv->low_lock, flags);
839
840 return err;
841}
842
843/*
844 * Verify the values and data access of the hardware
845 * No locks needed or used. No functions called.
846 */
847static int ipw2100_verify(struct ipw2100_priv *priv)
848{
849 u32 data1, data2;
850 u32 address;
851
852 u32 val1 = 0x76543210;
853 u32 val2 = 0xFEDCBA98;
854
855 /* Domain 0 check - all values should be DOA_DEBUG */
856 for (address = IPW_REG_DOA_DEBUG_AREA_START;
857 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
858 read_register(priv->net_dev, address, &data1);
859 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
860 return -EIO;
861 }
862
863 /* Domain 1 check - use arbitrary read/write compare */
864 for (address = 0; address < 5; address++) {
865 /* The memory area is not used now */
866 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
867 val1);
868 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
869 val2);
870 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
871 &data1);
872 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
873 &data2);
874 if (val1 == data1 && val2 == data2)
875 return 0;
876 }
877
878 return -EIO;
879}
880
881/*
882 *
883 * Loop until the CARD_DISABLED bit is the same value as the
884 * supplied parameter
885 *
886 * TODO: See if it would be more efficient to do a wait/wake
887 * cycle and have the completion event trigger the wakeup
888 *
889 */
890#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
891static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
892{
893 int i;
894 u32 card_state;
895 u32 len = sizeof(card_state);
896 int err;
897
898 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
899 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
900 &card_state, &len);
901 if (err) {
902 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
903 "failed.\n");
904 return 0;
905 }
906
907 /* We'll break out if either the HW state says it is
908 * in the state we want, or if HOST_COMPLETE command
909 * finishes */
910 if ((card_state == state) ||
911 ((priv->status & STATUS_ENABLED) ?
912 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
913 if (state == IPW_HW_STATE_ENABLED)
914 priv->status |= STATUS_ENABLED;
915 else
916 priv->status &= ~STATUS_ENABLED;
917
918 return 0;
919 }
920
921 udelay(50);
922 }
923
924 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
925 state ? "DISABLED" : "ENABLED");
926 return -EIO;
927}
928
929/*********************************************************************
930 Procedure : sw_reset_and_clock
931 Purpose : Asserts s/w reset, asserts clock initialization
932 and waits for clock stabilization
933 ********************************************************************/
934static int sw_reset_and_clock(struct ipw2100_priv *priv)
935{
936 int i;
937 u32 r;
938
939 // assert s/w reset
940 write_register(priv->net_dev, IPW_REG_RESET_REG,
941 IPW_AUX_HOST_RESET_REG_SW_RESET);
942
943 // wait for clock stabilization
944 for (i = 0; i < 1000; i++) {
945 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
946
947 // check clock ready bit
948 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
949 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
950 break;
951 }
952
953 if (i == 1000)
954 return -EIO; // TODO: better error value
955
956 /* set "initialization complete" bit to move adapter to
957 * D0 state */
958 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
959 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
960
961 /* wait for clock stabilization */
962 for (i = 0; i < 10000; i++) {
963 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
964
965 /* check clock ready bit */
966 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
967 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
968 break;
969 }
970
971 if (i == 10000)
972 return -EIO; /* TODO: better error value */
973
974 /* set D0 standby bit */
975 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
976 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
977 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
978
979 return 0;
980}
981
982/*********************************************************************
983 Procedure : ipw2100_download_firmware
984 Purpose : Initiaze adapter after power on.
985 The sequence is:
986 1. assert s/w reset first!
987 2. awake clocks & wait for clock stabilization
988 3. hold ARC (don't ask me why...)
989 4. load Dino ucode and reset/clock init again
990 5. zero-out shared mem
991 6. download f/w
992 *******************************************************************/
993static int ipw2100_download_firmware(struct ipw2100_priv *priv)
994{
995 u32 address;
996 int err;
997
998#ifndef CONFIG_PM
999 /* Fetch the firmware and microcode */
1000 struct ipw2100_fw ipw2100_firmware;
1001#endif
1002
1003 if (priv->fatal_error) {
1004 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
1005 "fatal error %d. Interface must be brought down.\n",
1006 priv->net_dev->name, priv->fatal_error);
1007 return -EINVAL;
1008 }
1009#ifdef CONFIG_PM
1010 if (!ipw2100_firmware.version) {
1011 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
1012 if (err) {
1013 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1014 priv->net_dev->name, err);
1015 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1016 goto fail;
1017 }
1018 }
1019#else
1020 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
1021 if (err) {
1022 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
1023 priv->net_dev->name, err);
1024 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1025 goto fail;
1026 }
1027#endif
1028 priv->firmware_version = ipw2100_firmware.version;
1029
1030 /* s/w reset and clock stabilization */
1031 err = sw_reset_and_clock(priv);
1032 if (err) {
1033 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1034 priv->net_dev->name, err);
1035 goto fail;
1036 }
1037
1038 err = ipw2100_verify(priv);
1039 if (err) {
1040 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1041 priv->net_dev->name, err);
1042 goto fail;
1043 }
1044
1045 /* Hold ARC */
1046 write_nic_dword(priv->net_dev,
1047 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1048
1049 /* allow ARC to run */
1050 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1051
1052 /* load microcode */
1053 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1054 if (err) {
1055 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1056 priv->net_dev->name, err);
1057 goto fail;
1058 }
1059
1060 /* release ARC */
1061 write_nic_dword(priv->net_dev,
1062 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1063
1064 /* s/w reset and clock stabilization (again!!!) */
1065 err = sw_reset_and_clock(priv);
1066 if (err) {
1067 printk(KERN_ERR DRV_NAME
1068 ": %s: sw_reset_and_clock failed: %d\n",
1069 priv->net_dev->name, err);
1070 goto fail;
1071 }
1072
1073 /* load f/w */
1074 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1075 if (err) {
1076 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1077 priv->net_dev->name, err);
1078 goto fail;
1079 }
1080#ifndef CONFIG_PM
1081 /*
1082 * When the .resume method of the driver is called, the other
1083 * part of the system, i.e. the ide driver could still stay in
1084 * the suspend stage. This prevents us from loading the firmware
1085 * from the disk. --YZ
1086 */
1087
1088 /* free any storage allocated for firmware image */
1089 ipw2100_release_firmware(priv, &ipw2100_firmware);
1090#endif
1091
1092 /* zero out Domain 1 area indirectly (Si requirement) */
1093 for (address = IPW_HOST_FW_SHARED_AREA0;
1094 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1095 write_nic_dword(priv->net_dev, address, 0);
1096 for (address = IPW_HOST_FW_SHARED_AREA1;
1097 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1098 write_nic_dword(priv->net_dev, address, 0);
1099 for (address = IPW_HOST_FW_SHARED_AREA2;
1100 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1101 write_nic_dword(priv->net_dev, address, 0);
1102 for (address = IPW_HOST_FW_SHARED_AREA3;
1103 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1104 write_nic_dword(priv->net_dev, address, 0);
1105 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1106 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1107 write_nic_dword(priv->net_dev, address, 0);
1108
1109 return 0;
1110
1111 fail:
1112 ipw2100_release_firmware(priv, &ipw2100_firmware);
1113 return err;
1114}
1115
1116static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1117{
1118 if (priv->status & STATUS_INT_ENABLED)
1119 return;
1120 priv->status |= STATUS_INT_ENABLED;
1121 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1122}
1123
1124static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1125{
1126 if (!(priv->status & STATUS_INT_ENABLED))
1127 return;
1128 priv->status &= ~STATUS_INT_ENABLED;
1129 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1130}
1131
1132static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1133{
1134 struct ipw2100_ordinals *ord = &priv->ordinals;
1135
1136 IPW_DEBUG_INFO("enter\n");
1137
1138 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1139 &ord->table1_addr);
1140
1141 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1142 &ord->table2_addr);
1143
1144 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1145 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1146
1147 ord->table2_size &= 0x0000FFFF;
1148
1149 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1150 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1151 IPW_DEBUG_INFO("exit\n");
1152}
1153
1154static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1155{
1156 u32 reg = 0;
1157 /*
1158 * Set GPIO 3 writable by FW; GPIO 1 writable
1159 * by driver and enable clock
1160 */
1161 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1162 IPW_BIT_GPIO_LED_OFF);
1163 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1164}
1165
1166static int rf_kill_active(struct ipw2100_priv *priv)
1167{
1168#define MAX_RF_KILL_CHECKS 5
1169#define RF_KILL_CHECK_DELAY 40
1170
1171 unsigned short value = 0;
1172 u32 reg = 0;
1173 int i;
1174
1175 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1176 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1177 priv->status &= ~STATUS_RF_KILL_HW;
1178 return 0;
1179 }
1180
1181 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1182 udelay(RF_KILL_CHECK_DELAY);
1183 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1184 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1185 }
1186
1187 if (value == 0) {
1188 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
1189 priv->status |= STATUS_RF_KILL_HW;
1190 } else {
1191 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, false);
1192 priv->status &= ~STATUS_RF_KILL_HW;
1193 }
1194
1195 return (value == 0);
1196}
1197
1198static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1199{
1200 u32 addr, len;
1201 u32 val;
1202
1203 /*
1204 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1205 */
1206 len = sizeof(addr);
1207 if (ipw2100_get_ordinal
1208 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1209 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1210 __LINE__);
1211 return -EIO;
1212 }
1213
1214 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1215
1216 /*
1217 * EEPROM version is the byte at offset 0xfd in firmware
1218 * We read 4 bytes, then shift out the byte we actually want */
1219 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1220 priv->eeprom_version = (val >> 24) & 0xFF;
1221 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1222
1223 /*
1224 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1225 *
1226 * notice that the EEPROM bit is reverse polarity, i.e.
1227 * bit = 0 signifies HW RF kill switch is supported
1228 * bit = 1 signifies HW RF kill switch is NOT supported
1229 */
1230 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1231 if (!((val >> 24) & 0x01))
1232 priv->hw_features |= HW_FEATURE_RFKILL;
1233
1234 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1235 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1236
1237 return 0;
1238}
1239
1240/*
1241 * Start firmware execution after power on and initialization
1242 * The sequence is:
1243 * 1. Release ARC
1244 * 2. Wait for f/w initialization completes;
1245 */
1246static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1247{
1248 int i;
1249 u32 inta, inta_mask, gpio;
1250
1251 IPW_DEBUG_INFO("enter\n");
1252
1253 if (priv->status & STATUS_RUNNING)
1254 return 0;
1255
1256 /*
1257 * Initialize the hw - drive adapter to DO state by setting
1258 * init_done bit. Wait for clk_ready bit and Download
1259 * fw & dino ucode
1260 */
1261 if (ipw2100_download_firmware(priv)) {
1262 printk(KERN_ERR DRV_NAME
1263 ": %s: Failed to power on the adapter.\n",
1264 priv->net_dev->name);
1265 return -EIO;
1266 }
1267
1268 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1269 * in the firmware RBD and TBD ring queue */
1270 ipw2100_queues_initialize(priv);
1271
1272 ipw2100_hw_set_gpio(priv);
1273
1274 /* TODO -- Look at disabling interrupts here to make sure none
1275 * get fired during FW initialization */
1276
1277 /* Release ARC - clear reset bit */
1278 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1279
1280 /* wait for f/w initialization complete */
1281 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1282 i = 5000;
1283 do {
1284 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1285 /* Todo... wait for sync command ... */
1286
1287 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1288
1289 /* check "init done" bit */
1290 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1291 /* reset "init done" bit */
1292 write_register(priv->net_dev, IPW_REG_INTA,
1293 IPW2100_INTA_FW_INIT_DONE);
1294 break;
1295 }
1296
1297 /* check error conditions : we check these after the firmware
1298 * check so that if there is an error, the interrupt handler
1299 * will see it and the adapter will be reset */
1300 if (inta &
1301 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1302 /* clear error conditions */
1303 write_register(priv->net_dev, IPW_REG_INTA,
1304 IPW2100_INTA_FATAL_ERROR |
1305 IPW2100_INTA_PARITY_ERROR);
1306 }
1307 } while (--i);
1308
1309 /* Clear out any pending INTAs since we aren't supposed to have
1310 * interrupts enabled at this point... */
1311 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1312 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1313 inta &= IPW_INTERRUPT_MASK;
1314 /* Clear out any pending interrupts */
1315 if (inta & inta_mask)
1316 write_register(priv->net_dev, IPW_REG_INTA, inta);
1317
1318 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1319 i ? "SUCCESS" : "FAILED");
1320
1321 if (!i) {
1322 printk(KERN_WARNING DRV_NAME
1323 ": %s: Firmware did not initialize.\n",
1324 priv->net_dev->name);
1325 return -EIO;
1326 }
1327
1328 /* allow firmware to write to GPIO1 & GPIO3 */
1329 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1330
1331 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1332
1333 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1334
1335 /* Ready to receive commands */
1336 priv->status |= STATUS_RUNNING;
1337
1338 /* The adapter has been reset; we are not associated */
1339 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1340
1341 IPW_DEBUG_INFO("exit\n");
1342
1343 return 0;
1344}
1345
1346static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1347{
1348 if (!priv->fatal_error)
1349 return;
1350
1351 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1352 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1353 priv->fatal_error = 0;
1354}
1355
1356/* NOTE: Our interrupt is disabled when this method is called */
1357static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1358{
1359 u32 reg;
1360 int i;
1361
1362 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1363
1364 ipw2100_hw_set_gpio(priv);
1365
1366 /* Step 1. Stop Master Assert */
1367 write_register(priv->net_dev, IPW_REG_RESET_REG,
1368 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1369
1370 /* Step 2. Wait for stop Master Assert
1371 * (not more than 50us, otherwise ret error */
1372 i = 5;
1373 do {
1374 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1375 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1376
1377 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1378 break;
1379 } while (--i);
1380
1381 priv->status &= ~STATUS_RESET_PENDING;
1382
1383 if (!i) {
1384 IPW_DEBUG_INFO
1385 ("exit - waited too long for master assert stop\n");
1386 return -EIO;
1387 }
1388
1389 write_register(priv->net_dev, IPW_REG_RESET_REG,
1390 IPW_AUX_HOST_RESET_REG_SW_RESET);
1391
1392 /* Reset any fatal_error conditions */
1393 ipw2100_reset_fatalerror(priv);
1394
1395 /* At this point, the adapter is now stopped and disabled */
1396 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1397 STATUS_ASSOCIATED | STATUS_ENABLED);
1398
1399 return 0;
1400}
1401
1402/*
1403 * Send the CARD_DISABLE_PHY_OFF command to the card to disable it
1404 *
1405 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1406 *
1407 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1408 * if STATUS_ASSN_LOST is sent.
1409 */
1410static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1411{
1412
1413#define HW_PHY_OFF_LOOP_DELAY (msecs_to_jiffies(50))
1414
1415 struct host_command cmd = {
1416 .host_command = CARD_DISABLE_PHY_OFF,
1417 .host_command_sequence = 0,
1418 .host_command_length = 0,
1419 };
1420 int err, i;
1421 u32 val1, val2;
1422
1423 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1424
1425 /* Turn off the radio */
1426 err = ipw2100_hw_send_command(priv, &cmd);
1427 if (err)
1428 return err;
1429
1430 for (i = 0; i < 2500; i++) {
1431 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1432 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1433
1434 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1435 (val2 & IPW2100_COMMAND_PHY_OFF))
1436 return 0;
1437
1438 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1439 }
1440
1441 return -EIO;
1442}
1443
1444static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1445{
1446 struct host_command cmd = {
1447 .host_command = HOST_COMPLETE,
1448 .host_command_sequence = 0,
1449 .host_command_length = 0
1450 };
1451 int err = 0;
1452
1453 IPW_DEBUG_HC("HOST_COMPLETE\n");
1454
1455 if (priv->status & STATUS_ENABLED)
1456 return 0;
1457
1458 mutex_lock(&priv->adapter_mutex);
1459
1460 if (rf_kill_active(priv)) {
1461 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1462 goto fail_up;
1463 }
1464
1465 err = ipw2100_hw_send_command(priv, &cmd);
1466 if (err) {
1467 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1468 goto fail_up;
1469 }
1470
1471 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1472 if (err) {
1473 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1474 priv->net_dev->name);
1475 goto fail_up;
1476 }
1477
1478 if (priv->stop_hang_check) {
1479 priv->stop_hang_check = 0;
1480 schedule_delayed_work(&priv->hang_check, HZ / 2);
1481 }
1482
1483 fail_up:
1484 mutex_unlock(&priv->adapter_mutex);
1485 return err;
1486}
1487
1488static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1489{
1490#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1491
1492 struct host_command cmd = {
1493 .host_command = HOST_PRE_POWER_DOWN,
1494 .host_command_sequence = 0,
1495 .host_command_length = 0,
1496 };
1497 int err, i;
1498 u32 reg;
1499
1500 if (!(priv->status & STATUS_RUNNING))
1501 return 0;
1502
1503 priv->status |= STATUS_STOPPING;
1504
1505 /* We can only shut down the card if the firmware is operational. So,
1506 * if we haven't reset since a fatal_error, then we can not send the
1507 * shutdown commands. */
1508 if (!priv->fatal_error) {
1509 /* First, make sure the adapter is enabled so that the PHY_OFF
1510 * command can shut it down */
1511 ipw2100_enable_adapter(priv);
1512
1513 err = ipw2100_hw_phy_off(priv);
1514 if (err)
1515 printk(KERN_WARNING DRV_NAME
1516 ": Error disabling radio %d\n", err);
1517
1518 /*
1519 * If in D0-standby mode going directly to D3 may cause a
1520 * PCI bus violation. Therefore we must change out of the D0
1521 * state.
1522 *
1523 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1524 * hardware from going into standby mode and will transition
1525 * out of D0-standby if it is already in that state.
1526 *
1527 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1528 * driver upon completion. Once received, the driver can
1529 * proceed to the D3 state.
1530 *
1531 * Prepare for power down command to fw. This command would
1532 * take HW out of D0-standby and prepare it for D3 state.
1533 *
1534 * Currently FW does not support event notification for this
1535 * event. Therefore, skip waiting for it. Just wait a fixed
1536 * 100ms
1537 */
1538 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1539
1540 err = ipw2100_hw_send_command(priv, &cmd);
1541 if (err)
1542 printk(KERN_WARNING DRV_NAME ": "
1543 "%s: Power down command failed: Error %d\n",
1544 priv->net_dev->name, err);
1545 else
1546 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1547 }
1548
1549 priv->status &= ~STATUS_ENABLED;
1550
1551 /*
1552 * Set GPIO 3 writable by FW; GPIO 1 writable
1553 * by driver and enable clock
1554 */
1555 ipw2100_hw_set_gpio(priv);
1556
1557 /*
1558 * Power down adapter. Sequence:
1559 * 1. Stop master assert (RESET_REG[9]=1)
1560 * 2. Wait for stop master (RESET_REG[8]==1)
1561 * 3. S/w reset assert (RESET_REG[7] = 1)
1562 */
1563
1564 /* Stop master assert */
1565 write_register(priv->net_dev, IPW_REG_RESET_REG,
1566 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1567
1568 /* wait stop master not more than 50 usec.
1569 * Otherwise return error. */
1570 for (i = 5; i > 0; i--) {
1571 udelay(10);
1572
1573 /* Check master stop bit */
1574 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1575
1576 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1577 break;
1578 }
1579
1580 if (i == 0)
1581 printk(KERN_WARNING DRV_NAME
1582 ": %s: Could now power down adapter.\n",
1583 priv->net_dev->name);
1584
1585 /* assert s/w reset */
1586 write_register(priv->net_dev, IPW_REG_RESET_REG,
1587 IPW_AUX_HOST_RESET_REG_SW_RESET);
1588
1589 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1590
1591 return 0;
1592}
1593
1594static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1595{
1596 struct host_command cmd = {
1597 .host_command = CARD_DISABLE,
1598 .host_command_sequence = 0,
1599 .host_command_length = 0
1600 };
1601 int err = 0;
1602
1603 IPW_DEBUG_HC("CARD_DISABLE\n");
1604
1605 if (!(priv->status & STATUS_ENABLED))
1606 return 0;
1607
1608 /* Make sure we clear the associated state */
1609 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1610
1611 if (!priv->stop_hang_check) {
1612 priv->stop_hang_check = 1;
1613 cancel_delayed_work(&priv->hang_check);
1614 }
1615
1616 mutex_lock(&priv->adapter_mutex);
1617
1618 err = ipw2100_hw_send_command(priv, &cmd);
1619 if (err) {
1620 printk(KERN_WARNING DRV_NAME
1621 ": exit - failed to send CARD_DISABLE command\n");
1622 goto fail_up;
1623 }
1624
1625 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1626 if (err) {
1627 printk(KERN_WARNING DRV_NAME
1628 ": exit - card failed to change to DISABLED\n");
1629 goto fail_up;
1630 }
1631
1632 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1633
1634 fail_up:
1635 mutex_unlock(&priv->adapter_mutex);
1636 return err;
1637}
1638
1639static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1640{
1641 struct host_command cmd = {
1642 .host_command = SET_SCAN_OPTIONS,
1643 .host_command_sequence = 0,
1644 .host_command_length = 8
1645 };
1646 int err;
1647
1648 IPW_DEBUG_INFO("enter\n");
1649
1650 IPW_DEBUG_SCAN("setting scan options\n");
1651
1652 cmd.host_command_parameters[0] = 0;
1653
1654 if (!(priv->config & CFG_ASSOCIATE))
1655 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1656 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1657 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1658 if (priv->config & CFG_PASSIVE_SCAN)
1659 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1660
1661 cmd.host_command_parameters[1] = priv->channel_mask;
1662
1663 err = ipw2100_hw_send_command(priv, &cmd);
1664
1665 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1666 cmd.host_command_parameters[0]);
1667
1668 return err;
1669}
1670
1671static int ipw2100_start_scan(struct ipw2100_priv *priv)
1672{
1673 struct host_command cmd = {
1674 .host_command = BROADCAST_SCAN,
1675 .host_command_sequence = 0,
1676 .host_command_length = 4
1677 };
1678 int err;
1679
1680 IPW_DEBUG_HC("START_SCAN\n");
1681
1682 cmd.host_command_parameters[0] = 0;
1683
1684 /* No scanning if in monitor mode */
1685 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1686 return 1;
1687
1688 if (priv->status & STATUS_SCANNING) {
1689 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1690 return 0;
1691 }
1692
1693 IPW_DEBUG_INFO("enter\n");
1694
1695 /* Not clearing here; doing so makes iwlist always return nothing...
1696 *
1697 * We should modify the table logic to use aging tables vs. clearing
1698 * the table on each scan start.
1699 */
1700 IPW_DEBUG_SCAN("starting scan\n");
1701
1702 priv->status |= STATUS_SCANNING;
1703 err = ipw2100_hw_send_command(priv, &cmd);
1704 if (err)
1705 priv->status &= ~STATUS_SCANNING;
1706
1707 IPW_DEBUG_INFO("exit\n");
1708
1709 return err;
1710}
1711
1712static const struct libipw_geo ipw_geos[] = {
1713 { /* Restricted */
1714 "---",
1715 .bg_channels = 14,
1716 .bg = {{2412, 1}, {2417, 2}, {2422, 3},
1717 {2427, 4}, {2432, 5}, {2437, 6},
1718 {2442, 7}, {2447, 8}, {2452, 9},
1719 {2457, 10}, {2462, 11}, {2467, 12},
1720 {2472, 13}, {2484, 14}},
1721 },
1722};
1723
1724static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1725{
1726 unsigned long flags;
1727 int err = 0;
1728 u32 lock;
1729 u32 ord_len = sizeof(lock);
1730
1731 /* Age scan list entries found before suspend */
1732 if (priv->suspend_time) {
1733 libipw_networks_age(priv->ieee, priv->suspend_time);
1734 priv->suspend_time = 0;
1735 }
1736
1737 /* Quiet if manually disabled. */
1738 if (priv->status & STATUS_RF_KILL_SW) {
1739 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1740 "switch\n", priv->net_dev->name);
1741 return 0;
1742 }
1743
1744 /* the ipw2100 hardware really doesn't want power management delays
1745 * longer than 175usec
1746 */
1747 pm_qos_update_request(&ipw2100_pm_qos_req, 175);
1748
1749 /* If the interrupt is enabled, turn it off... */
1750 spin_lock_irqsave(&priv->low_lock, flags);
1751 ipw2100_disable_interrupts(priv);
1752
1753 /* Reset any fatal_error conditions */
1754 ipw2100_reset_fatalerror(priv);
1755 spin_unlock_irqrestore(&priv->low_lock, flags);
1756
1757 if (priv->status & STATUS_POWERED ||
1758 (priv->status & STATUS_RESET_PENDING)) {
1759 /* Power cycle the card ... */
1760 err = ipw2100_power_cycle_adapter(priv);
1761 if (err) {
1762 printk(KERN_WARNING DRV_NAME
1763 ": %s: Could not cycle adapter.\n",
1764 priv->net_dev->name);
1765 goto exit;
1766 }
1767 } else
1768 priv->status |= STATUS_POWERED;
1769
1770 /* Load the firmware, start the clocks, etc. */
1771 err = ipw2100_start_adapter(priv);
1772 if (err) {
1773 printk(KERN_ERR DRV_NAME
1774 ": %s: Failed to start the firmware.\n",
1775 priv->net_dev->name);
1776 goto exit;
1777 }
1778
1779 ipw2100_initialize_ordinals(priv);
1780
1781 /* Determine capabilities of this particular HW configuration */
1782 err = ipw2100_get_hw_features(priv);
1783 if (err) {
1784 printk(KERN_ERR DRV_NAME
1785 ": %s: Failed to determine HW features.\n",
1786 priv->net_dev->name);
1787 goto exit;
1788 }
1789
1790 /* Initialize the geo */
1791 libipw_set_geo(priv->ieee, &ipw_geos[0]);
1792 priv->ieee->freq_band = LIBIPW_24GHZ_BAND;
1793
1794 lock = LOCK_NONE;
1795 err = ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len);
1796 if (err) {
1797 printk(KERN_ERR DRV_NAME
1798 ": %s: Failed to clear ordinal lock.\n",
1799 priv->net_dev->name);
1800 goto exit;
1801 }
1802
1803 priv->status &= ~STATUS_SCANNING;
1804
1805 if (rf_kill_active(priv)) {
1806 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1807 priv->net_dev->name);
1808
1809 if (priv->stop_rf_kill) {
1810 priv->stop_rf_kill = 0;
1811 schedule_delayed_work(&priv->rf_kill,
1812 round_jiffies_relative(HZ));
1813 }
1814
1815 deferred = 1;
1816 }
1817
1818 /* Turn on the interrupt so that commands can be processed */
1819 ipw2100_enable_interrupts(priv);
1820
1821 /* Send all of the commands that must be sent prior to
1822 * HOST_COMPLETE */
1823 err = ipw2100_adapter_setup(priv);
1824 if (err) {
1825 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1826 priv->net_dev->name);
1827 goto exit;
1828 }
1829
1830 if (!deferred) {
1831 /* Enable the adapter - sends HOST_COMPLETE */
1832 err = ipw2100_enable_adapter(priv);
1833 if (err) {
1834 printk(KERN_ERR DRV_NAME ": "
1835 "%s: failed in call to enable adapter.\n",
1836 priv->net_dev->name);
1837 ipw2100_hw_stop_adapter(priv);
1838 goto exit;
1839 }
1840
1841 /* Start a scan . . . */
1842 ipw2100_set_scan_options(priv);
1843 ipw2100_start_scan(priv);
1844 }
1845
1846 exit:
1847 return err;
1848}
1849
1850static void ipw2100_down(struct ipw2100_priv *priv)
1851{
1852 unsigned long flags;
1853 union iwreq_data wrqu = {
1854 .ap_addr = {
1855 .sa_family = ARPHRD_ETHER}
1856 };
1857 int associated = priv->status & STATUS_ASSOCIATED;
1858
1859 /* Kill the RF switch timer */
1860 if (!priv->stop_rf_kill) {
1861 priv->stop_rf_kill = 1;
1862 cancel_delayed_work(&priv->rf_kill);
1863 }
1864
1865 /* Kill the firmware hang check timer */
1866 if (!priv->stop_hang_check) {
1867 priv->stop_hang_check = 1;
1868 cancel_delayed_work(&priv->hang_check);
1869 }
1870
1871 /* Kill any pending resets */
1872 if (priv->status & STATUS_RESET_PENDING)
1873 cancel_delayed_work(&priv->reset_work);
1874
1875 /* Make sure the interrupt is on so that FW commands will be
1876 * processed correctly */
1877 spin_lock_irqsave(&priv->low_lock, flags);
1878 ipw2100_enable_interrupts(priv);
1879 spin_unlock_irqrestore(&priv->low_lock, flags);
1880
1881 if (ipw2100_hw_stop_adapter(priv))
1882 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1883 priv->net_dev->name);
1884
1885 /* Do not disable the interrupt until _after_ we disable
1886 * the adaptor. Otherwise the CARD_DISABLE command will never
1887 * be ack'd by the firmware */
1888 spin_lock_irqsave(&priv->low_lock, flags);
1889 ipw2100_disable_interrupts(priv);
1890 spin_unlock_irqrestore(&priv->low_lock, flags);
1891
1892 pm_qos_update_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
1893
1894 /* We have to signal any supplicant if we are disassociating */
1895 if (associated)
1896 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1897
1898 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1899 netif_carrier_off(priv->net_dev);
1900 netif_stop_queue(priv->net_dev);
1901}
1902
1903static int ipw2100_wdev_init(struct net_device *dev)
1904{
1905 struct ipw2100_priv *priv = libipw_priv(dev);
1906 const struct libipw_geo *geo = libipw_get_geo(priv->ieee);
1907 struct wireless_dev *wdev = &priv->ieee->wdev;
1908 int i;
1909
1910 memcpy(wdev->wiphy->perm_addr, priv->mac_addr, ETH_ALEN);
1911
1912 /* fill-out priv->ieee->bg_band */
1913 if (geo->bg_channels) {
1914 struct ieee80211_supported_band *bg_band = &priv->ieee->bg_band;
1915
1916 bg_band->band = NL80211_BAND_2GHZ;
1917 bg_band->n_channels = geo->bg_channels;
1918 bg_band->channels = kcalloc(geo->bg_channels,
1919 sizeof(struct ieee80211_channel),
1920 GFP_KERNEL);
1921 if (!bg_band->channels) {
1922 ipw2100_down(priv);
1923 return -ENOMEM;
1924 }
1925 /* translate geo->bg to bg_band.channels */
1926 for (i = 0; i < geo->bg_channels; i++) {
1927 bg_band->channels[i].band = NL80211_BAND_2GHZ;
1928 bg_band->channels[i].center_freq = geo->bg[i].freq;
1929 bg_band->channels[i].hw_value = geo->bg[i].channel;
1930 bg_band->channels[i].max_power = geo->bg[i].max_power;
1931 if (geo->bg[i].flags & LIBIPW_CH_PASSIVE_ONLY)
1932 bg_band->channels[i].flags |=
1933 IEEE80211_CHAN_NO_IR;
1934 if (geo->bg[i].flags & LIBIPW_CH_NO_IBSS)
1935 bg_band->channels[i].flags |=
1936 IEEE80211_CHAN_NO_IR;
1937 if (geo->bg[i].flags & LIBIPW_CH_RADAR_DETECT)
1938 bg_band->channels[i].flags |=
1939 IEEE80211_CHAN_RADAR;
1940 /* No equivalent for LIBIPW_CH_80211H_RULES,
1941 LIBIPW_CH_UNIFORM_SPREADING, or
1942 LIBIPW_CH_B_ONLY... */
1943 }
1944 /* point at bitrate info */
1945 bg_band->bitrates = ipw2100_bg_rates;
1946 bg_band->n_bitrates = RATE_COUNT;
1947
1948 wdev->wiphy->bands[NL80211_BAND_2GHZ] = bg_band;
1949 }
1950
1951 wdev->wiphy->cipher_suites = ipw_cipher_suites;
1952 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(ipw_cipher_suites);
1953
1954 set_wiphy_dev(wdev->wiphy, &priv->pci_dev->dev);
1955 if (wiphy_register(wdev->wiphy))
1956 return -EIO;
1957 return 0;
1958}
1959
1960static void ipw2100_reset_adapter(struct work_struct *work)
1961{
1962 struct ipw2100_priv *priv =
1963 container_of(work, struct ipw2100_priv, reset_work.work);
1964 unsigned long flags;
1965 union iwreq_data wrqu = {
1966 .ap_addr = {
1967 .sa_family = ARPHRD_ETHER}
1968 };
1969 int associated = priv->status & STATUS_ASSOCIATED;
1970
1971 spin_lock_irqsave(&priv->low_lock, flags);
1972 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1973 priv->resets++;
1974 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1975 priv->status |= STATUS_SECURITY_UPDATED;
1976
1977 /* Force a power cycle even if interface hasn't been opened
1978 * yet */
1979 cancel_delayed_work(&priv->reset_work);
1980 priv->status |= STATUS_RESET_PENDING;
1981 spin_unlock_irqrestore(&priv->low_lock, flags);
1982
1983 mutex_lock(&priv->action_mutex);
1984 /* stop timed checks so that they don't interfere with reset */
1985 priv->stop_hang_check = 1;
1986 cancel_delayed_work(&priv->hang_check);
1987
1988 /* We have to signal any supplicant if we are disassociating */
1989 if (associated)
1990 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1991
1992 ipw2100_up(priv, 0);
1993 mutex_unlock(&priv->action_mutex);
1994
1995}
1996
1997static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1998{
1999
2000#define MAC_ASSOCIATION_READ_DELAY (HZ)
2001 int ret;
2002 unsigned int len, essid_len;
2003 char essid[IW_ESSID_MAX_SIZE];
2004 u32 txrate;
2005 u32 chan;
2006 char *txratename;
2007 u8 bssid[ETH_ALEN];
2008
2009 /*
2010 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
2011 * an actual MAC of the AP. Seems like FW sets this
2012 * address too late. Read it later and expose through
2013 * /proc or schedule a later task to query and update
2014 */
2015
2016 essid_len = IW_ESSID_MAX_SIZE;
2017 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
2018 essid, &essid_len);
2019 if (ret) {
2020 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2021 __LINE__);
2022 return;
2023 }
2024
2025 len = sizeof(u32);
2026 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
2027 if (ret) {
2028 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2029 __LINE__);
2030 return;
2031 }
2032
2033 len = sizeof(u32);
2034 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
2035 if (ret) {
2036 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2037 __LINE__);
2038 return;
2039 }
2040 len = ETH_ALEN;
2041 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, bssid,
2042 &len);
2043 if (ret) {
2044 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
2045 __LINE__);
2046 return;
2047 }
2048 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
2049
2050 switch (txrate) {
2051 case TX_RATE_1_MBIT:
2052 txratename = "1Mbps";
2053 break;
2054 case TX_RATE_2_MBIT:
2055 txratename = "2Mbsp";
2056 break;
2057 case TX_RATE_5_5_MBIT:
2058 txratename = "5.5Mbps";
2059 break;
2060 case TX_RATE_11_MBIT:
2061 txratename = "11Mbps";
2062 break;
2063 default:
2064 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
2065 txratename = "unknown rate";
2066 break;
2067 }
2068
2069 IPW_DEBUG_INFO("%s: Associated with '%*pE' at %s, channel %d (BSSID=%pM)\n",
2070 priv->net_dev->name, essid_len, essid,
2071 txratename, chan, bssid);
2072
2073 /* now we copy read ssid into dev */
2074 if (!(priv->config & CFG_STATIC_ESSID)) {
2075 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
2076 memcpy(priv->essid, essid, priv->essid_len);
2077 }
2078 priv->channel = chan;
2079 memcpy(priv->bssid, bssid, ETH_ALEN);
2080
2081 priv->status |= STATUS_ASSOCIATING;
2082 priv->connect_start = ktime_get_boottime_seconds();
2083
2084 schedule_delayed_work(&priv->wx_event_work, HZ / 10);
2085}
2086
2087static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
2088 int length, int batch_mode)
2089{
2090 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
2091 struct host_command cmd = {
2092 .host_command = SSID,
2093 .host_command_sequence = 0,
2094 .host_command_length = ssid_len
2095 };
2096 int err;
2097
2098 IPW_DEBUG_HC("SSID: '%*pE'\n", ssid_len, essid);
2099
2100 if (ssid_len)
2101 memcpy(cmd.host_command_parameters, essid, ssid_len);
2102
2103 if (!batch_mode) {
2104 err = ipw2100_disable_adapter(priv);
2105 if (err)
2106 return err;
2107 }
2108
2109 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2110 * disable auto association -- so we cheat by setting a bogus SSID */
2111 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2112 int i;
2113 u8 *bogus = (u8 *) cmd.host_command_parameters;
2114 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2115 bogus[i] = 0x18 + i;
2116 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2117 }
2118
2119 /* NOTE: We always send the SSID command even if the provided ESSID is
2120 * the same as what we currently think is set. */
2121
2122 err = ipw2100_hw_send_command(priv, &cmd);
2123 if (!err) {
2124 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2125 memcpy(priv->essid, essid, ssid_len);
2126 priv->essid_len = ssid_len;
2127 }
2128
2129 if (!batch_mode) {
2130 if (ipw2100_enable_adapter(priv))
2131 err = -EIO;
2132 }
2133
2134 return err;
2135}
2136
2137static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2138{
2139 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2140 "disassociated: '%*pE' %pM\n", priv->essid_len, priv->essid,
2141 priv->bssid);
2142
2143 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2144
2145 if (priv->status & STATUS_STOPPING) {
2146 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2147 return;
2148 }
2149
2150 eth_zero_addr(priv->bssid);
2151 eth_zero_addr(priv->ieee->bssid);
2152
2153 netif_carrier_off(priv->net_dev);
2154 netif_stop_queue(priv->net_dev);
2155
2156 if (!(priv->status & STATUS_RUNNING))
2157 return;
2158
2159 if (priv->status & STATUS_SECURITY_UPDATED)
2160 schedule_delayed_work(&priv->security_work, 0);
2161
2162 schedule_delayed_work(&priv->wx_event_work, 0);
2163}
2164
2165static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2166{
2167 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2168 priv->net_dev->name);
2169
2170 /* RF_KILL is now enabled (else we wouldn't be here) */
2171 wiphy_rfkill_set_hw_state(priv->ieee->wdev.wiphy, true);
2172 priv->status |= STATUS_RF_KILL_HW;
2173
2174 /* Make sure the RF Kill check timer is running */
2175 priv->stop_rf_kill = 0;
2176 mod_delayed_work(system_wq, &priv->rf_kill, round_jiffies_relative(HZ));
2177}
2178
2179static void ipw2100_scan_event(struct work_struct *work)
2180{
2181 struct ipw2100_priv *priv = container_of(work, struct ipw2100_priv,
2182 scan_event.work);
2183 union iwreq_data wrqu;
2184
2185 wrqu.data.length = 0;
2186 wrqu.data.flags = 0;
2187 wireless_send_event(priv->net_dev, SIOCGIWSCAN, &wrqu, NULL);
2188}
2189
2190static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2191{
2192 IPW_DEBUG_SCAN("scan complete\n");
2193 /* Age the scan results... */
2194 priv->ieee->scans++;
2195 priv->status &= ~STATUS_SCANNING;
2196
2197 /* Only userspace-requested scan completion events go out immediately */
2198 if (!priv->user_requested_scan) {
2199 schedule_delayed_work(&priv->scan_event,
2200 round_jiffies_relative(msecs_to_jiffies(4000)));
2201 } else {
2202 priv->user_requested_scan = 0;
2203 mod_delayed_work(system_wq, &priv->scan_event, 0);
2204 }
2205}
2206
2207#ifdef CONFIG_IPW2100_DEBUG
2208#define IPW2100_HANDLER(v, f) { v, f, # v }
2209struct ipw2100_status_indicator {
2210 int status;
2211 void (*cb) (struct ipw2100_priv * priv, u32 status);
2212 char *name;
2213};
2214#else
2215#define IPW2100_HANDLER(v, f) { v, f }
2216struct ipw2100_status_indicator {
2217 int status;
2218 void (*cb) (struct ipw2100_priv * priv, u32 status);
2219};
2220#endif /* CONFIG_IPW2100_DEBUG */
2221
2222static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2223{
2224 IPW_DEBUG_SCAN("Scanning...\n");
2225 priv->status |= STATUS_SCANNING;
2226}
2227
2228static const struct ipw2100_status_indicator status_handlers[] = {
2229 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2230 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2231 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2232 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2233 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2234 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2235 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2236 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2237 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2238 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2239 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2240 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2241 IPW2100_HANDLER(-1, NULL)
2242};
2243
2244static void isr_status_change(struct ipw2100_priv *priv, int status)
2245{
2246 int i;
2247
2248 if (status == IPW_STATE_SCANNING &&
2249 priv->status & STATUS_ASSOCIATED &&
2250 !(priv->status & STATUS_SCANNING)) {
2251 IPW_DEBUG_INFO("Scan detected while associated, with "
2252 "no scan request. Restarting firmware.\n");
2253
2254 /* Wake up any sleeping jobs */
2255 schedule_reset(priv);
2256 }
2257
2258 for (i = 0; status_handlers[i].status != -1; i++) {
2259 if (status == status_handlers[i].status) {
2260 IPW_DEBUG_NOTIF("Status change: %s\n",
2261 status_handlers[i].name);
2262 if (status_handlers[i].cb)
2263 status_handlers[i].cb(priv, status);
2264 priv->wstats.status = status;
2265 return;
2266 }
2267 }
2268
2269 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2270}
2271
2272static void isr_rx_complete_command(struct ipw2100_priv *priv,
2273 struct ipw2100_cmd_header *cmd)
2274{
2275#ifdef CONFIG_IPW2100_DEBUG
2276 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2277 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2278 command_types[cmd->host_command_reg],
2279 cmd->host_command_reg);
2280 }
2281#endif
2282 if (cmd->host_command_reg == HOST_COMPLETE)
2283 priv->status |= STATUS_ENABLED;
2284
2285 if (cmd->host_command_reg == CARD_DISABLE)
2286 priv->status &= ~STATUS_ENABLED;
2287
2288 priv->status &= ~STATUS_CMD_ACTIVE;
2289
2290 wake_up_interruptible(&priv->wait_command_queue);
2291}
2292
2293#ifdef CONFIG_IPW2100_DEBUG
2294static const char *frame_types[] = {
2295 "COMMAND_STATUS_VAL",
2296 "STATUS_CHANGE_VAL",
2297 "P80211_DATA_VAL",
2298 "P8023_DATA_VAL",
2299 "HOST_NOTIFICATION_VAL"
2300};
2301#endif
2302
2303static int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2304 struct ipw2100_rx_packet *packet)
2305{
2306 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2307 if (!packet->skb)
2308 return -ENOMEM;
2309
2310 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2311 packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2312 sizeof(struct ipw2100_rx),
2313 PCI_DMA_FROMDEVICE);
2314 if (pci_dma_mapping_error(priv->pci_dev, packet->dma_addr)) {
2315 dev_kfree_skb(packet->skb);
2316 return -ENOMEM;
2317 }
2318
2319 return 0;
2320}
2321
2322#define SEARCH_ERROR 0xffffffff
2323#define SEARCH_FAIL 0xfffffffe
2324#define SEARCH_SUCCESS 0xfffffff0
2325#define SEARCH_DISCARD 0
2326#define SEARCH_SNAPSHOT 1
2327
2328#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2329static void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2330{
2331 int i;
2332 if (!priv->snapshot[0])
2333 return;
2334 for (i = 0; i < 0x30; i++)
2335 kfree(priv->snapshot[i]);
2336 priv->snapshot[0] = NULL;
2337}
2338
2339#ifdef IPW2100_DEBUG_C3
2340static int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2341{
2342 int i;
2343 if (priv->snapshot[0])
2344 return 1;
2345 for (i = 0; i < 0x30; i++) {
2346 priv->snapshot[i] = kmalloc(0x1000, GFP_ATOMIC);
2347 if (!priv->snapshot[i]) {
2348 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2349 "buffer %d\n", priv->net_dev->name, i);
2350 while (i > 0)
2351 kfree(priv->snapshot[--i]);
2352 priv->snapshot[0] = NULL;
2353 return 0;
2354 }
2355 }
2356
2357 return 1;
2358}
2359
2360static u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2361 size_t len, int mode)
2362{
2363 u32 i, j;
2364 u32 tmp;
2365 u8 *s, *d;
2366 u32 ret;
2367
2368 s = in_buf;
2369 if (mode == SEARCH_SNAPSHOT) {
2370 if (!ipw2100_snapshot_alloc(priv))
2371 mode = SEARCH_DISCARD;
2372 }
2373
2374 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2375 read_nic_dword(priv->net_dev, i, &tmp);
2376 if (mode == SEARCH_SNAPSHOT)
2377 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2378 if (ret == SEARCH_FAIL) {
2379 d = (u8 *) & tmp;
2380 for (j = 0; j < 4; j++) {
2381 if (*s != *d) {
2382 s = in_buf;
2383 continue;
2384 }
2385
2386 s++;
2387 d++;
2388
2389 if ((s - in_buf) == len)
2390 ret = (i + j) - len + 1;
2391 }
2392 } else if (mode == SEARCH_DISCARD)
2393 return ret;
2394 }
2395
2396 return ret;
2397}
2398#endif
2399
2400/*
2401 *
2402 * 0) Disconnect the SKB from the firmware (just unmap)
2403 * 1) Pack the ETH header into the SKB
2404 * 2) Pass the SKB to the network stack
2405 *
2406 * When packet is provided by the firmware, it contains the following:
2407 *
2408 * . libipw_hdr
2409 * . libipw_snap_hdr
2410 *
2411 * The size of the constructed ethernet
2412 *
2413 */
2414#ifdef IPW2100_RX_DEBUG
2415static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2416#endif
2417
2418static void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2419{
2420#ifdef IPW2100_DEBUG_C3
2421 struct ipw2100_status *status = &priv->status_queue.drv[i];
2422 u32 match, reg;
2423 int j;
2424#endif
2425
2426 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2427 i * sizeof(struct ipw2100_status));
2428
2429#ifdef IPW2100_DEBUG_C3
2430 /* Halt the firmware so we can get a good image */
2431 write_register(priv->net_dev, IPW_REG_RESET_REG,
2432 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2433 j = 5;
2434 do {
2435 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2436 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2437
2438 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2439 break;
2440 } while (j--);
2441
2442 match = ipw2100_match_buf(priv, (u8 *) status,
2443 sizeof(struct ipw2100_status),
2444 SEARCH_SNAPSHOT);
2445 if (match < SEARCH_SUCCESS)
2446 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2447 "offset 0x%06X, length %d:\n",
2448 priv->net_dev->name, match,
2449 sizeof(struct ipw2100_status));
2450 else
2451 IPW_DEBUG_INFO("%s: No DMA status match in "
2452 "Firmware.\n", priv->net_dev->name);
2453
2454 printk_buf((u8 *) priv->status_queue.drv,
2455 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2456#endif
2457
2458 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2459 priv->net_dev->stats.rx_errors++;
2460 schedule_reset(priv);
2461}
2462
2463static void isr_rx(struct ipw2100_priv *priv, int i,
2464 struct libipw_rx_stats *stats)
2465{
2466 struct net_device *dev = priv->net_dev;
2467 struct ipw2100_status *status = &priv->status_queue.drv[i];
2468 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2469
2470 IPW_DEBUG_RX("Handler...\n");
2471
2472 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2473 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2474 " Dropping.\n",
2475 dev->name,
2476 status->frame_size, skb_tailroom(packet->skb));
2477 dev->stats.rx_errors++;
2478 return;
2479 }
2480
2481 if (unlikely(!netif_running(dev))) {
2482 dev->stats.rx_errors++;
2483 priv->wstats.discard.misc++;
2484 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2485 return;
2486 }
2487
2488 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2489 !(priv->status & STATUS_ASSOCIATED))) {
2490 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2491 priv->wstats.discard.misc++;
2492 return;
2493 }
2494
2495 pci_unmap_single(priv->pci_dev,
2496 packet->dma_addr,
2497 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2498
2499 skb_put(packet->skb, status->frame_size);
2500
2501#ifdef IPW2100_RX_DEBUG
2502 /* Make a copy of the frame so we can dump it to the logs if
2503 * libipw_rx fails */
2504 skb_copy_from_linear_data(packet->skb, packet_data,
2505 min_t(u32, status->frame_size,
2506 IPW_RX_NIC_BUFFER_LENGTH));
2507#endif
2508
2509 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2510#ifdef IPW2100_RX_DEBUG
2511 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2512 dev->name);
2513 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2514#endif
2515 dev->stats.rx_errors++;
2516
2517 /* libipw_rx failed, so it didn't free the SKB */
2518 dev_kfree_skb_any(packet->skb);
2519 packet->skb = NULL;
2520 }
2521
2522 /* We need to allocate a new SKB and attach it to the RDB. */
2523 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2524 printk(KERN_WARNING DRV_NAME ": "
2525 "%s: Unable to allocate SKB onto RBD ring - disabling "
2526 "adapter.\n", dev->name);
2527 /* TODO: schedule adapter shutdown */
2528 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2529 }
2530
2531 /* Update the RDB entry */
2532 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2533}
2534
2535#ifdef CONFIG_IPW2100_MONITOR
2536
2537static void isr_rx_monitor(struct ipw2100_priv *priv, int i,
2538 struct libipw_rx_stats *stats)
2539{
2540 struct net_device *dev = priv->net_dev;
2541 struct ipw2100_status *status = &priv->status_queue.drv[i];
2542 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2543
2544 /* Magic struct that slots into the radiotap header -- no reason
2545 * to build this manually element by element, we can write it much
2546 * more efficiently than we can parse it. ORDER MATTERS HERE */
2547 struct ipw_rt_hdr {
2548 struct ieee80211_radiotap_header rt_hdr;
2549 s8 rt_dbmsignal; /* signal in dbM, kluged to signed */
2550 } *ipw_rt;
2551
2552 IPW_DEBUG_RX("Handler...\n");
2553
2554 if (unlikely(status->frame_size > skb_tailroom(packet->skb) -
2555 sizeof(struct ipw_rt_hdr))) {
2556 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2557 " Dropping.\n",
2558 dev->name,
2559 status->frame_size,
2560 skb_tailroom(packet->skb));
2561 dev->stats.rx_errors++;
2562 return;
2563 }
2564
2565 if (unlikely(!netif_running(dev))) {
2566 dev->stats.rx_errors++;
2567 priv->wstats.discard.misc++;
2568 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2569 return;
2570 }
2571
2572 if (unlikely(priv->config & CFG_CRC_CHECK &&
2573 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2574 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2575 dev->stats.rx_errors++;
2576 return;
2577 }
2578
2579 pci_unmap_single(priv->pci_dev, packet->dma_addr,
2580 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2581 memmove(packet->skb->data + sizeof(struct ipw_rt_hdr),
2582 packet->skb->data, status->frame_size);
2583
2584 ipw_rt = (struct ipw_rt_hdr *) packet->skb->data;
2585
2586 ipw_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION;
2587 ipw_rt->rt_hdr.it_pad = 0; /* always good to zero */
2588 ipw_rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct ipw_rt_hdr)); /* total hdr+data */
2589
2590 ipw_rt->rt_hdr.it_present = cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
2591
2592 ipw_rt->rt_dbmsignal = status->rssi + IPW2100_RSSI_TO_DBM;
2593
2594 skb_put(packet->skb, status->frame_size + sizeof(struct ipw_rt_hdr));
2595
2596 if (!libipw_rx(priv->ieee, packet->skb, stats)) {
2597 dev->stats.rx_errors++;
2598
2599 /* libipw_rx failed, so it didn't free the SKB */
2600 dev_kfree_skb_any(packet->skb);
2601 packet->skb = NULL;
2602 }
2603
2604 /* We need to allocate a new SKB and attach it to the RDB. */
2605 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2606 IPW_DEBUG_WARNING(
2607 "%s: Unable to allocate SKB onto RBD ring - disabling "
2608 "adapter.\n", dev->name);
2609 /* TODO: schedule adapter shutdown */
2610 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2611 }
2612
2613 /* Update the RDB entry */
2614 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2615}
2616
2617#endif
2618
2619static int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2620{
2621 struct ipw2100_status *status = &priv->status_queue.drv[i];
2622 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2623 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2624
2625 switch (frame_type) {
2626 case COMMAND_STATUS_VAL:
2627 return (status->frame_size != sizeof(u->rx_data.command));
2628 case STATUS_CHANGE_VAL:
2629 return (status->frame_size != sizeof(u->rx_data.status));
2630 case HOST_NOTIFICATION_VAL:
2631 return (status->frame_size < sizeof(u->rx_data.notification));
2632 case P80211_DATA_VAL:
2633 case P8023_DATA_VAL:
2634#ifdef CONFIG_IPW2100_MONITOR
2635 return 0;
2636#else
2637 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2638 case IEEE80211_FTYPE_MGMT:
2639 case IEEE80211_FTYPE_CTL:
2640 return 0;
2641 case IEEE80211_FTYPE_DATA:
2642 return (status->frame_size >
2643 IPW_MAX_802_11_PAYLOAD_LENGTH);
2644 }
2645#endif
2646 }
2647
2648 return 1;
2649}
2650
2651/*
2652 * ipw2100 interrupts are disabled at this point, and the ISR
2653 * is the only code that calls this method. So, we do not need
2654 * to play with any locks.
2655 *
2656 * RX Queue works as follows:
2657 *
2658 * Read index - firmware places packet in entry identified by the
2659 * Read index and advances Read index. In this manner,
2660 * Read index will always point to the next packet to
2661 * be filled--but not yet valid.
2662 *
2663 * Write index - driver fills this entry with an unused RBD entry.
2664 * This entry has not filled by the firmware yet.
2665 *
2666 * In between the W and R indexes are the RBDs that have been received
2667 * but not yet processed.
2668 *
2669 * The process of handling packets will start at WRITE + 1 and advance
2670 * until it reaches the READ index.
2671 *
2672 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2673 *
2674 */
2675static void __ipw2100_rx_process(struct ipw2100_priv *priv)
2676{
2677 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2678 struct ipw2100_status_queue *sq = &priv->status_queue;
2679 struct ipw2100_rx_packet *packet;
2680 u16 frame_type;
2681 u32 r, w, i, s;
2682 struct ipw2100_rx *u;
2683 struct libipw_rx_stats stats = {
2684 .mac_time = jiffies,
2685 };
2686
2687 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2688 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2689
2690 if (r >= rxq->entries) {
2691 IPW_DEBUG_RX("exit - bad read index\n");
2692 return;
2693 }
2694
2695 i = (rxq->next + 1) % rxq->entries;
2696 s = i;
2697 while (i != r) {
2698 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2699 r, rxq->next, i); */
2700
2701 packet = &priv->rx_buffers[i];
2702
2703 /* Sync the DMA for the RX buffer so CPU is sure to get
2704 * the correct values */
2705 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2706 sizeof(struct ipw2100_rx),
2707 PCI_DMA_FROMDEVICE);
2708
2709 if (unlikely(ipw2100_corruption_check(priv, i))) {
2710 ipw2100_corruption_detected(priv, i);
2711 goto increment;
2712 }
2713
2714 u = packet->rxp;
2715 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2716 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2717 stats.len = sq->drv[i].frame_size;
2718
2719 stats.mask = 0;
2720 if (stats.rssi != 0)
2721 stats.mask |= LIBIPW_STATMASK_RSSI;
2722 stats.freq = LIBIPW_24GHZ_BAND;
2723
2724 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2725 priv->net_dev->name, frame_types[frame_type],
2726 stats.len);
2727
2728 switch (frame_type) {
2729 case COMMAND_STATUS_VAL:
2730 /* Reset Rx watchdog */
2731 isr_rx_complete_command(priv, &u->rx_data.command);
2732 break;
2733
2734 case STATUS_CHANGE_VAL:
2735 isr_status_change(priv, u->rx_data.status);
2736 break;
2737
2738 case P80211_DATA_VAL:
2739 case P8023_DATA_VAL:
2740#ifdef CONFIG_IPW2100_MONITOR
2741 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2742 isr_rx_monitor(priv, i, &stats);
2743 break;
2744 }
2745#endif
2746 if (stats.len < sizeof(struct libipw_hdr_3addr))
2747 break;
2748 switch (WLAN_FC_GET_TYPE(le16_to_cpu(u->rx_data.header.frame_ctl))) {
2749 case IEEE80211_FTYPE_MGMT:
2750 libipw_rx_mgt(priv->ieee,
2751 &u->rx_data.header, &stats);
2752 break;
2753
2754 case IEEE80211_FTYPE_CTL:
2755 break;
2756
2757 case IEEE80211_FTYPE_DATA:
2758 isr_rx(priv, i, &stats);
2759 break;
2760
2761 }
2762 break;
2763 }
2764
2765 increment:
2766 /* clear status field associated with this RBD */
2767 rxq->drv[i].status.info.field = 0;
2768
2769 i = (i + 1) % rxq->entries;
2770 }
2771
2772 if (i != s) {
2773 /* backtrack one entry, wrapping to end if at 0 */
2774 rxq->next = (i ? i : rxq->entries) - 1;
2775
2776 write_register(priv->net_dev,
2777 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2778 }
2779}
2780
2781/*
2782 * __ipw2100_tx_process
2783 *
2784 * This routine will determine whether the next packet on
2785 * the fw_pend_list has been processed by the firmware yet.
2786 *
2787 * If not, then it does nothing and returns.
2788 *
2789 * If so, then it removes the item from the fw_pend_list, frees
2790 * any associated storage, and places the item back on the
2791 * free list of its source (either msg_free_list or tx_free_list)
2792 *
2793 * TX Queue works as follows:
2794 *
2795 * Read index - points to the next TBD that the firmware will
2796 * process. The firmware will read the data, and once
2797 * done processing, it will advance the Read index.
2798 *
2799 * Write index - driver fills this entry with an constructed TBD
2800 * entry. The Write index is not advanced until the
2801 * packet has been configured.
2802 *
2803 * In between the W and R indexes are the TBDs that have NOT been
2804 * processed. Lagging behind the R index are packets that have
2805 * been processed but have not been freed by the driver.
2806 *
2807 * In order to free old storage, an internal index will be maintained
2808 * that points to the next packet to be freed. When all used
2809 * packets have been freed, the oldest index will be the same as the
2810 * firmware's read index.
2811 *
2812 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2813 *
2814 * Because the TBD structure can not contain arbitrary data, the
2815 * driver must keep an internal queue of cached allocations such that
2816 * it can put that data back into the tx_free_list and msg_free_list
2817 * for use by future command and data packets.
2818 *
2819 */
2820static int __ipw2100_tx_process(struct ipw2100_priv *priv)
2821{
2822 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2823 struct ipw2100_bd *tbd;
2824 struct list_head *element;
2825 struct ipw2100_tx_packet *packet;
2826 int descriptors_used;
2827 int e, i;
2828 u32 r, w, frag_num = 0;
2829
2830 if (list_empty(&priv->fw_pend_list))
2831 return 0;
2832
2833 element = priv->fw_pend_list.next;
2834
2835 packet = list_entry(element, struct ipw2100_tx_packet, list);
2836 tbd = &txq->drv[packet->index];
2837
2838 /* Determine how many TBD entries must be finished... */
2839 switch (packet->type) {
2840 case COMMAND:
2841 /* COMMAND uses only one slot; don't advance */
2842 descriptors_used = 1;
2843 e = txq->oldest;
2844 break;
2845
2846 case DATA:
2847 /* DATA uses two slots; advance and loop position. */
2848 descriptors_used = tbd->num_fragments;
2849 frag_num = tbd->num_fragments - 1;
2850 e = txq->oldest + frag_num;
2851 e %= txq->entries;
2852 break;
2853
2854 default:
2855 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2856 priv->net_dev->name);
2857 return 0;
2858 }
2859
2860 /* if the last TBD is not done by NIC yet, then packet is
2861 * not ready to be released.
2862 *
2863 */
2864 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2865 &r);
2866 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2867 &w);
2868 if (w != txq->next)
2869 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2870 priv->net_dev->name);
2871
2872 /*
2873 * txq->next is the index of the last packet written txq->oldest is
2874 * the index of the r is the index of the next packet to be read by
2875 * firmware
2876 */
2877
2878 /*
2879 * Quick graphic to help you visualize the following
2880 * if / else statement
2881 *
2882 * ===>| s---->|===============
2883 * e>|
2884 * | a | b | c | d | e | f | g | h | i | j | k | l
2885 * r---->|
2886 * w
2887 *
2888 * w - updated by driver
2889 * r - updated by firmware
2890 * s - start of oldest BD entry (txq->oldest)
2891 * e - end of oldest BD entry
2892 *
2893 */
2894 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2895 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2896 return 0;
2897 }
2898
2899 list_del(element);
2900 DEC_STAT(&priv->fw_pend_stat);
2901
2902#ifdef CONFIG_IPW2100_DEBUG
2903 {
2904 i = txq->oldest;
2905 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2906 &txq->drv[i],
2907 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2908 txq->drv[i].host_addr, txq->drv[i].buf_length);
2909
2910 if (packet->type == DATA) {
2911 i = (i + 1) % txq->entries;
2912
2913 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2914 &txq->drv[i],
2915 (u32) (txq->nic + i *
2916 sizeof(struct ipw2100_bd)),
2917 (u32) txq->drv[i].host_addr,
2918 txq->drv[i].buf_length);
2919 }
2920 }
2921#endif
2922
2923 switch (packet->type) {
2924 case DATA:
2925 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2926 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2927 "Expecting DATA TBD but pulled "
2928 "something else: ids %d=%d.\n",
2929 priv->net_dev->name, txq->oldest, packet->index);
2930
2931 /* DATA packet; we have to unmap and free the SKB */
2932 for (i = 0; i < frag_num; i++) {
2933 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2934
2935 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2936 (packet->index + 1 + i) % txq->entries,
2937 tbd->host_addr, tbd->buf_length);
2938
2939 pci_unmap_single(priv->pci_dev,
2940 tbd->host_addr,
2941 tbd->buf_length, PCI_DMA_TODEVICE);
2942 }
2943
2944 libipw_txb_free(packet->info.d_struct.txb);
2945 packet->info.d_struct.txb = NULL;
2946
2947 list_add_tail(element, &priv->tx_free_list);
2948 INC_STAT(&priv->tx_free_stat);
2949
2950 /* We have a free slot in the Tx queue, so wake up the
2951 * transmit layer if it is stopped. */
2952 if (priv->status & STATUS_ASSOCIATED)
2953 netif_wake_queue(priv->net_dev);
2954
2955 /* A packet was processed by the hardware, so update the
2956 * watchdog */
2957 netif_trans_update(priv->net_dev);
2958
2959 break;
2960
2961 case COMMAND:
2962 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2963 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2964 "Expecting COMMAND TBD but pulled "
2965 "something else: ids %d=%d.\n",
2966 priv->net_dev->name, txq->oldest, packet->index);
2967
2968#ifdef CONFIG_IPW2100_DEBUG
2969 if (packet->info.c_struct.cmd->host_command_reg <
2970 ARRAY_SIZE(command_types))
2971 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2972 command_types[packet->info.c_struct.cmd->
2973 host_command_reg],
2974 packet->info.c_struct.cmd->
2975 host_command_reg,
2976 packet->info.c_struct.cmd->cmd_status_reg);
2977#endif
2978
2979 list_add_tail(element, &priv->msg_free_list);
2980 INC_STAT(&priv->msg_free_stat);
2981 break;
2982 }
2983
2984 /* advance oldest used TBD pointer to start of next entry */
2985 txq->oldest = (e + 1) % txq->entries;
2986 /* increase available TBDs number */
2987 txq->available += descriptors_used;
2988 SET_STAT(&priv->txq_stat, txq->available);
2989
2990 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2991 jiffies - packet->jiffy_start);
2992
2993 return (!list_empty(&priv->fw_pend_list));
2994}
2995
2996static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2997{
2998 int i = 0;
2999
3000 while (__ipw2100_tx_process(priv) && i < 200)
3001 i++;
3002
3003 if (i == 200) {
3004 printk(KERN_WARNING DRV_NAME ": "
3005 "%s: Driver is running slow (%d iters).\n",
3006 priv->net_dev->name, i);
3007 }
3008}
3009
3010static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
3011{
3012 struct list_head *element;
3013 struct ipw2100_tx_packet *packet;
3014 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3015 struct ipw2100_bd *tbd;
3016 int next = txq->next;
3017
3018 while (!list_empty(&priv->msg_pend_list)) {
3019 /* if there isn't enough space in TBD queue, then
3020 * don't stuff a new one in.
3021 * NOTE: 3 are needed as a command will take one,
3022 * and there is a minimum of 2 that must be
3023 * maintained between the r and w indexes
3024 */
3025 if (txq->available <= 3) {
3026 IPW_DEBUG_TX("no room in tx_queue\n");
3027 break;
3028 }
3029
3030 element = priv->msg_pend_list.next;
3031 list_del(element);
3032 DEC_STAT(&priv->msg_pend_stat);
3033
3034 packet = list_entry(element, struct ipw2100_tx_packet, list);
3035
3036 IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
3037 &txq->drv[txq->next],
3038 (u32) (txq->nic + txq->next *
3039 sizeof(struct ipw2100_bd)));
3040
3041 packet->index = txq->next;
3042
3043 tbd = &txq->drv[txq->next];
3044
3045 /* initialize TBD */
3046 tbd->host_addr = packet->info.c_struct.cmd_phys;
3047 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
3048 /* not marking number of fragments causes problems
3049 * with f/w debug version */
3050 tbd->num_fragments = 1;
3051 tbd->status.info.field =
3052 IPW_BD_STATUS_TX_FRAME_COMMAND |
3053 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3054
3055 /* update TBD queue counters */
3056 txq->next++;
3057 txq->next %= txq->entries;
3058 txq->available--;
3059 DEC_STAT(&priv->txq_stat);
3060
3061 list_add_tail(element, &priv->fw_pend_list);
3062 INC_STAT(&priv->fw_pend_stat);
3063 }
3064
3065 if (txq->next != next) {
3066 /* kick off the DMA by notifying firmware the
3067 * write index has moved; make sure TBD stores are sync'd */
3068 wmb();
3069 write_register(priv->net_dev,
3070 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3071 txq->next);
3072 }
3073}
3074
3075/*
3076 * ipw2100_tx_send_data
3077 *
3078 */
3079static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
3080{
3081 struct list_head *element;
3082 struct ipw2100_tx_packet *packet;
3083 struct ipw2100_bd_queue *txq = &priv->tx_queue;
3084 struct ipw2100_bd *tbd;
3085 int next = txq->next;
3086 int i = 0;
3087 struct ipw2100_data_header *ipw_hdr;
3088 struct libipw_hdr_3addr *hdr;
3089
3090 while (!list_empty(&priv->tx_pend_list)) {
3091 /* if there isn't enough space in TBD queue, then
3092 * don't stuff a new one in.
3093 * NOTE: 4 are needed as a data will take two,
3094 * and there is a minimum of 2 that must be
3095 * maintained between the r and w indexes
3096 */
3097 element = priv->tx_pend_list.next;
3098 packet = list_entry(element, struct ipw2100_tx_packet, list);
3099
3100 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
3101 IPW_MAX_BDS)) {
3102 /* TODO: Support merging buffers if more than
3103 * IPW_MAX_BDS are used */
3104 IPW_DEBUG_INFO("%s: Maximum BD threshold exceeded. "
3105 "Increase fragmentation level.\n",
3106 priv->net_dev->name);
3107 }
3108
3109 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
3110 IPW_DEBUG_TX("no room in tx_queue\n");
3111 break;
3112 }
3113
3114 list_del(element);
3115 DEC_STAT(&priv->tx_pend_stat);
3116
3117 tbd = &txq->drv[txq->next];
3118
3119 packet->index = txq->next;
3120
3121 ipw_hdr = packet->info.d_struct.data;
3122 hdr = (struct libipw_hdr_3addr *)packet->info.d_struct.txb->
3123 fragments[0]->data;
3124
3125 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
3126 /* To DS: Addr1 = BSSID, Addr2 = SA,
3127 Addr3 = DA */
3128 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3129 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3130 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3131 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3132 Addr3 = BSSID */
3133 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3134 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3135 }
3136
3137 ipw_hdr->host_command_reg = SEND;
3138 ipw_hdr->host_command_reg1 = 0;
3139
3140 /* For now we only support host based encryption */
3141 ipw_hdr->needs_encryption = 0;
3142 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3143 if (packet->info.d_struct.txb->nr_frags > 1)
3144 ipw_hdr->fragment_size =
3145 packet->info.d_struct.txb->frag_size -
3146 LIBIPW_3ADDR_LEN;
3147 else
3148 ipw_hdr->fragment_size = 0;
3149
3150 tbd->host_addr = packet->info.d_struct.data_phys;
3151 tbd->buf_length = sizeof(struct ipw2100_data_header);
3152 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3153 tbd->status.info.field =
3154 IPW_BD_STATUS_TX_FRAME_802_3 |
3155 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3156 txq->next++;
3157 txq->next %= txq->entries;
3158
3159 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
3160 packet->index, tbd->host_addr, tbd->buf_length);
3161#ifdef CONFIG_IPW2100_DEBUG
3162 if (packet->info.d_struct.txb->nr_frags > 1)
3163 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3164 packet->info.d_struct.txb->nr_frags);
3165#endif
3166
3167 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3168 tbd = &txq->drv[txq->next];
3169 if (i == packet->info.d_struct.txb->nr_frags - 1)
3170 tbd->status.info.field =
3171 IPW_BD_STATUS_TX_FRAME_802_3 |
3172 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3173 else
3174 tbd->status.info.field =
3175 IPW_BD_STATUS_TX_FRAME_802_3 |
3176 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3177
3178 tbd->buf_length = packet->info.d_struct.txb->
3179 fragments[i]->len - LIBIPW_3ADDR_LEN;
3180
3181 tbd->host_addr = pci_map_single(priv->pci_dev,
3182 packet->info.d_struct.
3183 txb->fragments[i]->
3184 data +
3185 LIBIPW_3ADDR_LEN,
3186 tbd->buf_length,
3187 PCI_DMA_TODEVICE);
3188 if (pci_dma_mapping_error(priv->pci_dev,
3189 tbd->host_addr)) {
3190 IPW_DEBUG_TX("dma mapping error\n");
3191 break;
3192 }
3193
3194 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3195 txq->next, tbd->host_addr,
3196 tbd->buf_length);
3197
3198 pci_dma_sync_single_for_device(priv->pci_dev,
3199 tbd->host_addr,
3200 tbd->buf_length,
3201 PCI_DMA_TODEVICE);
3202
3203 txq->next++;
3204 txq->next %= txq->entries;
3205 }
3206
3207 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3208 SET_STAT(&priv->txq_stat, txq->available);
3209
3210 list_add_tail(element, &priv->fw_pend_list);
3211 INC_STAT(&priv->fw_pend_stat);
3212 }
3213
3214 if (txq->next != next) {
3215 /* kick off the DMA by notifying firmware the
3216 * write index has moved; make sure TBD stores are sync'd */
3217 write_register(priv->net_dev,
3218 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3219 txq->next);
3220 }
3221}
3222
3223static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
3224{
3225 struct net_device *dev = priv->net_dev;
3226 unsigned long flags;
3227 u32 inta, tmp;
3228
3229 spin_lock_irqsave(&priv->low_lock, flags);
3230 ipw2100_disable_interrupts(priv);
3231
3232 read_register(dev, IPW_REG_INTA, &inta);
3233
3234 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3235 (unsigned long)inta & IPW_INTERRUPT_MASK);
3236
3237 priv->in_isr++;
3238 priv->interrupts++;
3239
3240 /* We do not loop and keep polling for more interrupts as this
3241 * is frowned upon and doesn't play nicely with other potentially
3242 * chained IRQs */
3243 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3244 (unsigned long)inta & IPW_INTERRUPT_MASK);
3245
3246 if (inta & IPW2100_INTA_FATAL_ERROR) {
3247 printk(KERN_WARNING DRV_NAME
3248 ": Fatal interrupt. Scheduling firmware restart.\n");
3249 priv->inta_other++;
3250 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3251
3252 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3253 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3254 priv->net_dev->name, priv->fatal_error);
3255
3256 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3257 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3258 priv->net_dev->name, tmp);
3259
3260 /* Wake up any sleeping jobs */
3261 schedule_reset(priv);
3262 }
3263
3264 if (inta & IPW2100_INTA_PARITY_ERROR) {
3265 printk(KERN_ERR DRV_NAME
3266 ": ***** PARITY ERROR INTERRUPT !!!!\n");
3267 priv->inta_other++;
3268 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3269 }
3270
3271 if (inta & IPW2100_INTA_RX_TRANSFER) {
3272 IPW_DEBUG_ISR("RX interrupt\n");
3273
3274 priv->rx_interrupts++;
3275
3276 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3277
3278 __ipw2100_rx_process(priv);
3279 __ipw2100_tx_complete(priv);
3280 }
3281
3282 if (inta & IPW2100_INTA_TX_TRANSFER) {
3283 IPW_DEBUG_ISR("TX interrupt\n");
3284
3285 priv->tx_interrupts++;
3286
3287 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3288
3289 __ipw2100_tx_complete(priv);
3290 ipw2100_tx_send_commands(priv);
3291 ipw2100_tx_send_data(priv);
3292 }
3293
3294 if (inta & IPW2100_INTA_TX_COMPLETE) {
3295 IPW_DEBUG_ISR("TX complete\n");
3296 priv->inta_other++;
3297 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3298
3299 __ipw2100_tx_complete(priv);
3300 }
3301
3302 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3303 /* ipw2100_handle_event(dev); */
3304 priv->inta_other++;
3305 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3306 }
3307
3308 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3309 IPW_DEBUG_ISR("FW init done interrupt\n");
3310 priv->inta_other++;
3311
3312 read_register(dev, IPW_REG_INTA, &tmp);
3313 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3314 IPW2100_INTA_PARITY_ERROR)) {
3315 write_register(dev, IPW_REG_INTA,
3316 IPW2100_INTA_FATAL_ERROR |
3317 IPW2100_INTA_PARITY_ERROR);
3318 }
3319
3320 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3321 }
3322
3323 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3324 IPW_DEBUG_ISR("Status change interrupt\n");
3325 priv->inta_other++;
3326 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3327 }
3328
3329 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3330 IPW_DEBUG_ISR("slave host mode interrupt\n");
3331 priv->inta_other++;
3332 write_register(dev, IPW_REG_INTA,
3333 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3334 }
3335
3336 priv->in_isr--;
3337 ipw2100_enable_interrupts(priv);
3338
3339 spin_unlock_irqrestore(&priv->low_lock, flags);
3340
3341 IPW_DEBUG_ISR("exit\n");
3342}
3343
3344static irqreturn_t ipw2100_interrupt(int irq, void *data)
3345{
3346 struct ipw2100_priv *priv = data;
3347 u32 inta, inta_mask;
3348
3349 if (!data)
3350 return IRQ_NONE;
3351
3352 spin_lock(&priv->low_lock);
3353
3354 /* We check to see if we should be ignoring interrupts before
3355 * we touch the hardware. During ucode load if we try and handle
3356 * an interrupt we can cause keyboard problems as well as cause
3357 * the ucode to fail to initialize */
3358 if (!(priv->status & STATUS_INT_ENABLED)) {
3359 /* Shared IRQ */
3360 goto none;
3361 }
3362
3363 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3364 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3365
3366 if (inta == 0xFFFFFFFF) {
3367 /* Hardware disappeared */
3368 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3369 goto none;
3370 }
3371
3372 inta &= IPW_INTERRUPT_MASK;
3373
3374 if (!(inta & inta_mask)) {
3375 /* Shared interrupt */
3376 goto none;
3377 }
3378
3379 /* We disable the hardware interrupt here just to prevent unneeded
3380 * calls to be made. We disable this again within the actual
3381 * work tasklet, so if another part of the code re-enables the
3382 * interrupt, that is fine */
3383 ipw2100_disable_interrupts(priv);
3384
3385 tasklet_schedule(&priv->irq_tasklet);
3386 spin_unlock(&priv->low_lock);
3387
3388 return IRQ_HANDLED;
3389 none:
3390 spin_unlock(&priv->low_lock);
3391 return IRQ_NONE;
3392}
3393
3394static netdev_tx_t ipw2100_tx(struct libipw_txb *txb,
3395 struct net_device *dev, int pri)
3396{
3397 struct ipw2100_priv *priv = libipw_priv(dev);
3398 struct list_head *element;
3399 struct ipw2100_tx_packet *packet;
3400 unsigned long flags;
3401
3402 spin_lock_irqsave(&priv->low_lock, flags);
3403
3404 if (!(priv->status & STATUS_ASSOCIATED)) {
3405 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3406 priv->net_dev->stats.tx_carrier_errors++;
3407 netif_stop_queue(dev);
3408 goto fail_unlock;
3409 }
3410
3411 if (list_empty(&priv->tx_free_list))
3412 goto fail_unlock;
3413
3414 element = priv->tx_free_list.next;
3415 packet = list_entry(element, struct ipw2100_tx_packet, list);
3416
3417 packet->info.d_struct.txb = txb;
3418
3419 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3420 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3421
3422 packet->jiffy_start = jiffies;
3423
3424 list_del(element);
3425 DEC_STAT(&priv->tx_free_stat);
3426
3427 list_add_tail(element, &priv->tx_pend_list);
3428 INC_STAT(&priv->tx_pend_stat);
3429
3430 ipw2100_tx_send_data(priv);
3431
3432 spin_unlock_irqrestore(&priv->low_lock, flags);
3433 return NETDEV_TX_OK;
3434
3435fail_unlock:
3436 netif_stop_queue(dev);
3437 spin_unlock_irqrestore(&priv->low_lock, flags);
3438 return NETDEV_TX_BUSY;
3439}
3440
3441static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3442{
3443 int i, j, err = -EINVAL;
3444 void *v;
3445 dma_addr_t p;
3446
3447 priv->msg_buffers =
3448 kmalloc_array(IPW_COMMAND_POOL_SIZE,
3449 sizeof(struct ipw2100_tx_packet),
3450 GFP_KERNEL);
3451 if (!priv->msg_buffers)
3452 return -ENOMEM;
3453
3454 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3455 v = pci_zalloc_consistent(priv->pci_dev,
3456 sizeof(struct ipw2100_cmd_header),
3457 &p);
3458 if (!v) {
3459 printk(KERN_ERR DRV_NAME ": "
3460 "%s: PCI alloc failed for msg "
3461 "buffers.\n", priv->net_dev->name);
3462 err = -ENOMEM;
3463 break;
3464 }
3465
3466 priv->msg_buffers[i].type = COMMAND;
3467 priv->msg_buffers[i].info.c_struct.cmd =
3468 (struct ipw2100_cmd_header *)v;
3469 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3470 }
3471
3472 if (i == IPW_COMMAND_POOL_SIZE)
3473 return 0;
3474
3475 for (j = 0; j < i; j++) {
3476 pci_free_consistent(priv->pci_dev,
3477 sizeof(struct ipw2100_cmd_header),
3478 priv->msg_buffers[j].info.c_struct.cmd,
3479 priv->msg_buffers[j].info.c_struct.
3480 cmd_phys);
3481 }
3482
3483 kfree(priv->msg_buffers);
3484 priv->msg_buffers = NULL;
3485
3486 return err;
3487}
3488
3489static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3490{
3491 int i;
3492
3493 INIT_LIST_HEAD(&priv->msg_free_list);
3494 INIT_LIST_HEAD(&priv->msg_pend_list);
3495
3496 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3497 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3498 SET_STAT(&priv->msg_free_stat, i);
3499
3500 return 0;
3501}
3502
3503static void ipw2100_msg_free(struct ipw2100_priv *priv)
3504{
3505 int i;
3506
3507 if (!priv->msg_buffers)
3508 return;
3509
3510 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3511 pci_free_consistent(priv->pci_dev,
3512 sizeof(struct ipw2100_cmd_header),
3513 priv->msg_buffers[i].info.c_struct.cmd,
3514 priv->msg_buffers[i].info.c_struct.
3515 cmd_phys);
3516 }
3517
3518 kfree(priv->msg_buffers);
3519 priv->msg_buffers = NULL;
3520}
3521
3522static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3523 char *buf)
3524{
3525 struct pci_dev *pci_dev = to_pci_dev(d);
3526 char *out = buf;
3527 int i, j;
3528 u32 val;
3529
3530 for (i = 0; i < 16; i++) {
3531 out += sprintf(out, "[%08X] ", i * 16);
3532 for (j = 0; j < 16; j += 4) {
3533 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3534 out += sprintf(out, "%08X ", val);
3535 }
3536 out += sprintf(out, "\n");
3537 }
3538
3539 return out - buf;
3540}
3541
3542static DEVICE_ATTR(pci, 0444, show_pci, NULL);
3543
3544static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3545 char *buf)
3546{
3547 struct ipw2100_priv *p = dev_get_drvdata(d);
3548 return sprintf(buf, "0x%08x\n", (int)p->config);
3549}
3550
3551static DEVICE_ATTR(cfg, 0444, show_cfg, NULL);
3552
3553static ssize_t show_status(struct device *d, struct device_attribute *attr,
3554 char *buf)
3555{
3556 struct ipw2100_priv *p = dev_get_drvdata(d);
3557 return sprintf(buf, "0x%08x\n", (int)p->status);
3558}
3559
3560static DEVICE_ATTR(status, 0444, show_status, NULL);
3561
3562static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3563 char *buf)
3564{
3565 struct ipw2100_priv *p = dev_get_drvdata(d);
3566 return sprintf(buf, "0x%08x\n", (int)p->capability);
3567}
3568
3569static DEVICE_ATTR(capability, 0444, show_capability, NULL);
3570
3571#define IPW2100_REG(x) { IPW_ ##x, #x }
3572static const struct {
3573 u32 addr;
3574 const char *name;
3575} hw_data[] = {
3576IPW2100_REG(REG_GP_CNTRL),
3577 IPW2100_REG(REG_GPIO),
3578 IPW2100_REG(REG_INTA),
3579 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3580#define IPW2100_NIC(x, s) { x, #x, s }
3581static const struct {
3582 u32 addr;
3583 const char *name;
3584 size_t size;
3585} nic_data[] = {
3586IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3587 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3588#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3589static const struct {
3590 u8 index;
3591 const char *name;
3592 const char *desc;
3593} ord_data[] = {
3594IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3595 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3596 "successful Host Tx's (MSDU)"),
3597 IPW2100_ORD(STAT_TX_DIR_DATA,
3598 "successful Directed Tx's (MSDU)"),
3599 IPW2100_ORD(STAT_TX_DIR_DATA1,
3600 "successful Directed Tx's (MSDU) @ 1MB"),
3601 IPW2100_ORD(STAT_TX_DIR_DATA2,
3602 "successful Directed Tx's (MSDU) @ 2MB"),
3603 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3604 "successful Directed Tx's (MSDU) @ 5_5MB"),
3605 IPW2100_ORD(STAT_TX_DIR_DATA11,
3606 "successful Directed Tx's (MSDU) @ 11MB"),
3607 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3608 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3609 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3610 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3611 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3612 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3613 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3614 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3615 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3616 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3617 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3618 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3619 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3620 IPW2100_ORD(STAT_TX_ASSN_RESP,
3621 "successful Association response Tx's"),
3622 IPW2100_ORD(STAT_TX_REASSN,
3623 "successful Reassociation Tx's"),
3624 IPW2100_ORD(STAT_TX_REASSN_RESP,
3625 "successful Reassociation response Tx's"),
3626 IPW2100_ORD(STAT_TX_PROBE,
3627 "probes successfully transmitted"),
3628 IPW2100_ORD(STAT_TX_PROBE_RESP,
3629 "probe responses successfully transmitted"),
3630 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3631 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3632 IPW2100_ORD(STAT_TX_DISASSN,
3633 "successful Disassociation TX"),
3634 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3635 IPW2100_ORD(STAT_TX_DEAUTH,
3636 "successful Deauthentication TX"),
3637 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3638 "Total successful Tx data bytes"),
3639 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3640 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3641 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3642 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3643 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3644 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3645 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3646 "times max tries in a hop failed"),
3647 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3648 "times disassociation failed"),
3649 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3650 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3651 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3652 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3653 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3654 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3655 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3656 "directed packets at 5.5MB"),
3657 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3658 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3659 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3660 "nondirected packets at 1MB"),
3661 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3662 "nondirected packets at 2MB"),
3663 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3664 "nondirected packets at 5.5MB"),
3665 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3666 "nondirected packets at 11MB"),
3667 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3668 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3669 "Rx CTS"),
3670 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3671 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3672 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3673 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3674 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3675 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3676 IPW2100_ORD(STAT_RX_REASSN_RESP,
3677 "Reassociation response Rx's"),
3678 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3679 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3680 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3681 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3682 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3683 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3684 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3685 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3686 "Total rx data bytes received"),
3687 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3688 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3689 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3690 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3691 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3692 IPW2100_ORD(STAT_RX_DUPLICATE1,
3693 "duplicate rx packets at 1MB"),
3694 IPW2100_ORD(STAT_RX_DUPLICATE2,
3695 "duplicate rx packets at 2MB"),
3696 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3697 "duplicate rx packets at 5.5MB"),
3698 IPW2100_ORD(STAT_RX_DUPLICATE11,
3699 "duplicate rx packets at 11MB"),
3700 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3701 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3702 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3703 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3704 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3705 "rx frames with invalid protocol"),
3706 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3707 IPW2100_ORD(STAT_RX_NO_BUFFER,
3708 "rx frames rejected due to no buffer"),
3709 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3710 "rx frames dropped due to missing fragment"),
3711 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3712 "rx frames dropped due to non-sequential fragment"),
3713 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3714 "rx frames dropped due to unmatched 1st frame"),
3715 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3716 "rx frames dropped due to uncompleted frame"),
3717 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3718 "ICV errors during decryption"),
3719 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3720 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3721 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3722 "poll response timeouts"),
3723 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3724 "timeouts waiting for last {broad,multi}cast pkt"),
3725 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3726 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3727 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3728 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3729 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3730 "current calculation of % missed beacons"),
3731 IPW2100_ORD(STAT_PERCENT_RETRIES,
3732 "current calculation of % missed tx retries"),
3733 IPW2100_ORD(ASSOCIATED_AP_PTR,
3734 "0 if not associated, else pointer to AP table entry"),
3735 IPW2100_ORD(AVAILABLE_AP_CNT,
3736 "AP's described in the AP table"),
3737 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3738 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3739 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3740 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3741 "failures due to response fail"),
3742 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3743 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3744 IPW2100_ORD(STAT_ROAM_INHIBIT,
3745 "times roaming was inhibited due to activity"),
3746 IPW2100_ORD(RSSI_AT_ASSN,
3747 "RSSI of associated AP at time of association"),
3748 IPW2100_ORD(STAT_ASSN_CAUSE1,
3749 "reassociation: no probe response or TX on hop"),
3750 IPW2100_ORD(STAT_ASSN_CAUSE2,
3751 "reassociation: poor tx/rx quality"),
3752 IPW2100_ORD(STAT_ASSN_CAUSE3,
3753 "reassociation: tx/rx quality (excessive AP load"),
3754 IPW2100_ORD(STAT_ASSN_CAUSE4,
3755 "reassociation: AP RSSI level"),
3756 IPW2100_ORD(STAT_ASSN_CAUSE5,
3757 "reassociations due to load leveling"),
3758 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3759 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3760 "times authentication response failed"),
3761 IPW2100_ORD(STATION_TABLE_CNT,
3762 "entries in association table"),
3763 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3764 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3765 IPW2100_ORD(COUNTRY_CODE,
3766 "IEEE country code as recv'd from beacon"),
3767 IPW2100_ORD(COUNTRY_CHANNELS,
3768 "channels supported by country"),
3769 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3770 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3771 IPW2100_ORD(ANTENNA_DIVERSITY,
3772 "TRUE if antenna diversity is disabled"),
3773 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3774 IPW2100_ORD(OUR_FREQ,
3775 "current radio freq lower digits - channel ID"),
3776 IPW2100_ORD(RTC_TIME, "current RTC time"),
3777 IPW2100_ORD(PORT_TYPE, "operating mode"),
3778 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3779 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3780 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3781 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3782 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3783 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3784 IPW2100_ORD(CAPABILITIES,
3785 "Management frame capability field"),
3786 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3787 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3788 IPW2100_ORD(RTS_THRESHOLD,
3789 "Min packet length for RTS handshaking"),
3790 IPW2100_ORD(INT_MODE, "International mode"),
3791 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3792 "protocol frag threshold"),
3793 IPW2100_OR