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Fixes missed beacon logic in relation to on-network AP roaming.
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / ipw2100.c
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CommitLineData
1/******************************************************************************
2
3 Copyright(c) 2003 - 2005 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 James P. Ketrenos <ipw2100-admin@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 <jkmaline@cc.hut.fi>
32 Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.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 referrs 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/config.h>
138#include <linux/errno.h>
139#include <linux/if_arp.h>
140#include <linux/in6.h>
141#include <linux/in.h>
142#include <linux/ip.h>
143#include <linux/kernel.h>
144#include <linux/kmod.h>
145#include <linux/module.h>
146#include <linux/netdevice.h>
147#include <linux/ethtool.h>
148#include <linux/pci.h>
149#include <linux/dma-mapping.h>
150#include <linux/proc_fs.h>
151#include <linux/skbuff.h>
152#include <asm/uaccess.h>
153#include <asm/io.h>
154#define __KERNEL_SYSCALLS__
155#include <linux/fs.h>
156#include <linux/mm.h>
157#include <linux/slab.h>
158#include <linux/unistd.h>
159#include <linux/stringify.h>
160#include <linux/tcp.h>
161#include <linux/types.h>
162#include <linux/version.h>
163#include <linux/time.h>
164#include <linux/firmware.h>
165#include <linux/acpi.h>
166#include <linux/ctype.h>
167
168#include "ipw2100.h"
169
170#define IPW2100_VERSION "1.1.3"
171
172#define DRV_NAME "ipw2100"
173#define DRV_VERSION IPW2100_VERSION
174#define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver"
175#define DRV_COPYRIGHT "Copyright(c) 2003-2005 Intel Corporation"
176
177/* Debugging stuff */
178#ifdef CONFIG_IPW_DEBUG
179#define CONFIG_IPW2100_RX_DEBUG /* Reception debugging */
180#endif
181
182MODULE_DESCRIPTION(DRV_DESCRIPTION);
183MODULE_VERSION(DRV_VERSION);
184MODULE_AUTHOR(DRV_COPYRIGHT);
185MODULE_LICENSE("GPL");
186
187static int debug = 0;
188static int mode = 0;
189static int channel = 0;
190static int associate = 1;
191static int disable = 0;
192#ifdef CONFIG_PM
193static struct ipw2100_fw ipw2100_firmware;
194#endif
195
196#include <linux/moduleparam.h>
197module_param(debug, int, 0444);
198module_param(mode, int, 0444);
199module_param(channel, int, 0444);
200module_param(associate, int, 0444);
201module_param(disable, int, 0444);
202
203MODULE_PARM_DESC(debug, "debug level");
204MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
205MODULE_PARM_DESC(channel, "channel");
206MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
207MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
208
209static u32 ipw2100_debug_level = IPW_DL_NONE;
210
211#ifdef CONFIG_IPW_DEBUG
212#define IPW_DEBUG(level, message...) \
213do { \
214 if (ipw2100_debug_level & (level)) { \
215 printk(KERN_DEBUG "ipw2100: %c %s ", \
216 in_interrupt() ? 'I' : 'U', __FUNCTION__); \
217 printk(message); \
218 } \
219} while (0)
220#else
221#define IPW_DEBUG(level, message...) do {} while (0)
222#endif /* CONFIG_IPW_DEBUG */
223
224#ifdef CONFIG_IPW_DEBUG
225static const char *command_types[] = {
226 "undefined",
227 "unused", /* HOST_ATTENTION */
228 "HOST_COMPLETE",
229 "unused", /* SLEEP */
230 "unused", /* HOST_POWER_DOWN */
231 "unused",
232 "SYSTEM_CONFIG",
233 "unused", /* SET_IMR */
234 "SSID",
235 "MANDATORY_BSSID",
236 "AUTHENTICATION_TYPE",
237 "ADAPTER_ADDRESS",
238 "PORT_TYPE",
239 "INTERNATIONAL_MODE",
240 "CHANNEL",
241 "RTS_THRESHOLD",
242 "FRAG_THRESHOLD",
243 "POWER_MODE",
244 "TX_RATES",
245 "BASIC_TX_RATES",
246 "WEP_KEY_INFO",
247 "unused",
248 "unused",
249 "unused",
250 "unused",
251 "WEP_KEY_INDEX",
252 "WEP_FLAGS",
253 "ADD_MULTICAST",
254 "CLEAR_ALL_MULTICAST",
255 "BEACON_INTERVAL",
256 "ATIM_WINDOW",
257 "CLEAR_STATISTICS",
258 "undefined",
259 "undefined",
260 "undefined",
261 "undefined",
262 "TX_POWER_INDEX",
263 "undefined",
264 "undefined",
265 "undefined",
266 "undefined",
267 "undefined",
268 "undefined",
269 "BROADCAST_SCAN",
270 "CARD_DISABLE",
271 "PREFERRED_BSSID",
272 "SET_SCAN_OPTIONS",
273 "SCAN_DWELL_TIME",
274 "SWEEP_TABLE",
275 "AP_OR_STATION_TABLE",
276 "GROUP_ORDINALS",
277 "SHORT_RETRY_LIMIT",
278 "LONG_RETRY_LIMIT",
279 "unused", /* SAVE_CALIBRATION */
280 "unused", /* RESTORE_CALIBRATION */
281 "undefined",
282 "undefined",
283 "undefined",
284 "HOST_PRE_POWER_DOWN",
285 "unused", /* HOST_INTERRUPT_COALESCING */
286 "undefined",
287 "CARD_DISABLE_PHY_OFF",
288 "MSDU_TX_RATES" "undefined",
289 "undefined",
290 "SET_STATION_STAT_BITS",
291 "CLEAR_STATIONS_STAT_BITS",
292 "LEAP_ROGUE_MODE",
293 "SET_SECURITY_INFORMATION",
294 "DISASSOCIATION_BSSID",
295 "SET_WPA_ASS_IE"
296};
297#endif
298
299/* Pre-decl until we get the code solid and then we can clean it up */
300static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
301static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
302static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
303
304static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
305static void ipw2100_queues_free(struct ipw2100_priv *priv);
306static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
307
308static int ipw2100_fw_download(struct ipw2100_priv *priv,
309 struct ipw2100_fw *fw);
310static int ipw2100_get_firmware(struct ipw2100_priv *priv,
311 struct ipw2100_fw *fw);
312static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
313 size_t max);
314static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
315 size_t max);
316static void ipw2100_release_firmware(struct ipw2100_priv *priv,
317 struct ipw2100_fw *fw);
318static int ipw2100_ucode_download(struct ipw2100_priv *priv,
319 struct ipw2100_fw *fw);
320static void ipw2100_wx_event_work(struct ipw2100_priv *priv);
321static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev);
322static struct iw_handler_def ipw2100_wx_handler_def;
323
324static inline void read_register(struct net_device *dev, u32 reg, u32 * val)
325{
326 *val = readl((void __iomem *)(dev->base_addr + reg));
327 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
328}
329
330static inline void write_register(struct net_device *dev, u32 reg, u32 val)
331{
332 writel(val, (void __iomem *)(dev->base_addr + reg));
333 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
334}
335
336static inline void read_register_word(struct net_device *dev, u32 reg,
337 u16 * val)
338{
339 *val = readw((void __iomem *)(dev->base_addr + reg));
340 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
341}
342
343static inline void read_register_byte(struct net_device *dev, u32 reg, u8 * val)
344{
345 *val = readb((void __iomem *)(dev->base_addr + reg));
346 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
347}
348
349static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
350{
351 writew(val, (void __iomem *)(dev->base_addr + reg));
352 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
353}
354
355static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
356{
357 writeb(val, (void __iomem *)(dev->base_addr + reg));
358 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
359}
360
361static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 * val)
362{
363 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
364 addr & IPW_REG_INDIRECT_ADDR_MASK);
365 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
366}
367
368static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
369{
370 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
371 addr & IPW_REG_INDIRECT_ADDR_MASK);
372 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
373}
374
375static inline void read_nic_word(struct net_device *dev, u32 addr, u16 * val)
376{
377 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
378 addr & IPW_REG_INDIRECT_ADDR_MASK);
379 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
380}
381
382static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
383{
384 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
385 addr & IPW_REG_INDIRECT_ADDR_MASK);
386 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
387}
388
389static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 * val)
390{
391 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
392 addr & IPW_REG_INDIRECT_ADDR_MASK);
393 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
394}
395
396static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
397{
398 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
399 addr & IPW_REG_INDIRECT_ADDR_MASK);
400 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
401}
402
403static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
404{
405 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
406 addr & IPW_REG_INDIRECT_ADDR_MASK);
407}
408
409static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
410{
411 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
412}
413
414static inline void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
415 const u8 * buf)
416{
417 u32 aligned_addr;
418 u32 aligned_len;
419 u32 dif_len;
420 u32 i;
421
422 /* read first nibble byte by byte */
423 aligned_addr = addr & (~0x3);
424 dif_len = addr - aligned_addr;
425 if (dif_len) {
426 /* Start reading at aligned_addr + dif_len */
427 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
428 aligned_addr);
429 for (i = dif_len; i < 4; i++, buf++)
430 write_register_byte(dev,
431 IPW_REG_INDIRECT_ACCESS_DATA + i,
432 *buf);
433
434 len -= dif_len;
435 aligned_addr += 4;
436 }
437
438 /* read DWs through autoincrement registers */
439 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
440 aligned_len = len & (~0x3);
441 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
442 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *) buf);
443
444 /* copy the last nibble */
445 dif_len = len - aligned_len;
446 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
447 for (i = 0; i < dif_len; i++, buf++)
448 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
449 *buf);
450}
451
452static inline void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
453 u8 * buf)
454{
455 u32 aligned_addr;
456 u32 aligned_len;
457 u32 dif_len;
458 u32 i;
459
460 /* read first nibble byte by byte */
461 aligned_addr = addr & (~0x3);
462 dif_len = addr - aligned_addr;
463 if (dif_len) {
464 /* Start reading at aligned_addr + dif_len */
465 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
466 aligned_addr);
467 for (i = dif_len; i < 4; i++, buf++)
468 read_register_byte(dev,
469 IPW_REG_INDIRECT_ACCESS_DATA + i,
470 buf);
471
472 len -= dif_len;
473 aligned_addr += 4;
474 }
475
476 /* read DWs through autoincrement registers */
477 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS, aligned_addr);
478 aligned_len = len & (~0x3);
479 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
480 read_register(dev, IPW_REG_AUTOINCREMENT_DATA, (u32 *) buf);
481
482 /* copy the last nibble */
483 dif_len = len - aligned_len;
484 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
485 for (i = 0; i < dif_len; i++, buf++)
486 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
487}
488
489static inline int ipw2100_hw_is_adapter_in_system(struct net_device *dev)
490{
491 return (dev->base_addr &&
492 (readl
493 ((void __iomem *)(dev->base_addr +
494 IPW_REG_DOA_DEBUG_AREA_START))
495 == IPW_DATA_DOA_DEBUG_VALUE));
496}
497
498static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
499 void *val, u32 * len)
500{
501 struct ipw2100_ordinals *ordinals = &priv->ordinals;
502 u32 addr;
503 u32 field_info;
504 u16 field_len;
505 u16 field_count;
506 u32 total_length;
507
508 if (ordinals->table1_addr == 0) {
509 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
510 "before they have been loaded.\n");
511 return -EINVAL;
512 }
513
514 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
515 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
516 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
517
518 printk(KERN_WARNING DRV_NAME
519 ": ordinal buffer length too small, need %zd\n",
520 IPW_ORD_TAB_1_ENTRY_SIZE);
521
522 return -EINVAL;
523 }
524
525 read_nic_dword(priv->net_dev,
526 ordinals->table1_addr + (ord << 2), &addr);
527 read_nic_dword(priv->net_dev, addr, val);
528
529 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
530
531 return 0;
532 }
533
534 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
535
536 ord -= IPW_START_ORD_TAB_2;
537
538 /* get the address of statistic */
539 read_nic_dword(priv->net_dev,
540 ordinals->table2_addr + (ord << 3), &addr);
541
542 /* get the second DW of statistics ;
543 * two 16-bit words - first is length, second is count */
544 read_nic_dword(priv->net_dev,
545 ordinals->table2_addr + (ord << 3) + sizeof(u32),
546 &field_info);
547
548 /* get each entry length */
549 field_len = *((u16 *) & field_info);
550
551 /* get number of entries */
552 field_count = *(((u16 *) & field_info) + 1);
553
554 /* abort if no enought memory */
555 total_length = field_len * field_count;
556 if (total_length > *len) {
557 *len = total_length;
558 return -EINVAL;
559 }
560
561 *len = total_length;
562 if (!total_length)
563 return 0;
564
565 /* read the ordinal data from the SRAM */
566 read_nic_memory(priv->net_dev, addr, total_length, val);
567
568 return 0;
569 }
570
571 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
572 "in table 2\n", ord);
573
574 return -EINVAL;
575}
576
577static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 * val,
578 u32 * len)
579{
580 struct ipw2100_ordinals *ordinals = &priv->ordinals;
581 u32 addr;
582
583 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
584 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
585 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
586 IPW_DEBUG_INFO("wrong size\n");
587 return -EINVAL;
588 }
589
590 read_nic_dword(priv->net_dev,
591 ordinals->table1_addr + (ord << 2), &addr);
592
593 write_nic_dword(priv->net_dev, addr, *val);
594
595 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
596
597 return 0;
598 }
599
600 IPW_DEBUG_INFO("wrong table\n");
601 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
602 return -EINVAL;
603
604 return -EINVAL;
605}
606
607static char *snprint_line(char *buf, size_t count,
608 const u8 * data, u32 len, u32 ofs)
609{
610 int out, i, j, l;
611 char c;
612
613 out = snprintf(buf, count, "%08X", ofs);
614
615 for (l = 0, i = 0; i < 2; i++) {
616 out += snprintf(buf + out, count - out, " ");
617 for (j = 0; j < 8 && l < len; j++, l++)
618 out += snprintf(buf + out, count - out, "%02X ",
619 data[(i * 8 + j)]);
620 for (; j < 8; j++)
621 out += snprintf(buf + out, count - out, " ");
622 }
623
624 out += snprintf(buf + out, count - out, " ");
625 for (l = 0, i = 0; i < 2; i++) {
626 out += snprintf(buf + out, count - out, " ");
627 for (j = 0; j < 8 && l < len; j++, l++) {
628 c = data[(i * 8 + j)];
629 if (!isascii(c) || !isprint(c))
630 c = '.';
631
632 out += snprintf(buf + out, count - out, "%c", c);
633 }
634
635 for (; j < 8; j++)
636 out += snprintf(buf + out, count - out, " ");
637 }
638
639 return buf;
640}
641
642static void printk_buf(int level, const u8 * data, u32 len)
643{
644 char line[81];
645 u32 ofs = 0;
646 if (!(ipw2100_debug_level & level))
647 return;
648
649 while (len) {
650 printk(KERN_DEBUG "%s\n",
651 snprint_line(line, sizeof(line), &data[ofs],
652 min(len, 16U), ofs));
653 ofs += 16;
654 len -= min(len, 16U);
655 }
656}
657
658#define MAX_RESET_BACKOFF 10
659
660static inline void schedule_reset(struct ipw2100_priv *priv)
661{
662 unsigned long now = get_seconds();
663
664 /* If we haven't received a reset request within the backoff period,
665 * then we can reset the backoff interval so this reset occurs
666 * immediately */
667 if (priv->reset_backoff &&
668 (now - priv->last_reset > priv->reset_backoff))
669 priv->reset_backoff = 0;
670
671 priv->last_reset = get_seconds();
672
673 if (!(priv->status & STATUS_RESET_PENDING)) {
674 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%ds).\n",
675 priv->net_dev->name, priv->reset_backoff);
676 netif_carrier_off(priv->net_dev);
677 netif_stop_queue(priv->net_dev);
678 priv->status |= STATUS_RESET_PENDING;
679 if (priv->reset_backoff)
680 queue_delayed_work(priv->workqueue, &priv->reset_work,
681 priv->reset_backoff * HZ);
682 else
683 queue_work(priv->workqueue, &priv->reset_work);
684
685 if (priv->reset_backoff < MAX_RESET_BACKOFF)
686 priv->reset_backoff++;
687
688 wake_up_interruptible(&priv->wait_command_queue);
689 } else
690 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
691 priv->net_dev->name);
692
693}
694
695#define HOST_COMPLETE_TIMEOUT (2 * HZ)
696static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
697 struct host_command *cmd)
698{
699 struct list_head *element;
700 struct ipw2100_tx_packet *packet;
701 unsigned long flags;
702 int err = 0;
703
704 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
705 command_types[cmd->host_command], cmd->host_command,
706 cmd->host_command_length);
707 printk_buf(IPW_DL_HC, (u8 *) cmd->host_command_parameters,
708 cmd->host_command_length);
709
710 spin_lock_irqsave(&priv->low_lock, flags);
711
712 if (priv->fatal_error) {
713 IPW_DEBUG_INFO
714 ("Attempt to send command while hardware in fatal error condition.\n");
715 err = -EIO;
716 goto fail_unlock;
717 }
718
719 if (!(priv->status & STATUS_RUNNING)) {
720 IPW_DEBUG_INFO
721 ("Attempt to send command while hardware is not running.\n");
722 err = -EIO;
723 goto fail_unlock;
724 }
725
726 if (priv->status & STATUS_CMD_ACTIVE) {
727 IPW_DEBUG_INFO
728 ("Attempt to send command while another command is pending.\n");
729 err = -EBUSY;
730 goto fail_unlock;
731 }
732
733 if (list_empty(&priv->msg_free_list)) {
734 IPW_DEBUG_INFO("no available msg buffers\n");
735 goto fail_unlock;
736 }
737
738 priv->status |= STATUS_CMD_ACTIVE;
739 priv->messages_sent++;
740
741 element = priv->msg_free_list.next;
742
743 packet = list_entry(element, struct ipw2100_tx_packet, list);
744 packet->jiffy_start = jiffies;
745
746 /* initialize the firmware command packet */
747 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
748 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
749 packet->info.c_struct.cmd->host_command_len_reg =
750 cmd->host_command_length;
751 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
752
753 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
754 cmd->host_command_parameters,
755 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
756
757 list_del(element);
758 DEC_STAT(&priv->msg_free_stat);
759
760 list_add_tail(element, &priv->msg_pend_list);
761 INC_STAT(&priv->msg_pend_stat);
762
763 ipw2100_tx_send_commands(priv);
764 ipw2100_tx_send_data(priv);
765
766 spin_unlock_irqrestore(&priv->low_lock, flags);
767
768 /*
769 * We must wait for this command to complete before another
770 * command can be sent... but if we wait more than 3 seconds
771 * then there is a problem.
772 */
773
774 err =
775 wait_event_interruptible_timeout(priv->wait_command_queue,
776 !(priv->
777 status & STATUS_CMD_ACTIVE),
778 HOST_COMPLETE_TIMEOUT);
779
780 if (err == 0) {
781 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
782 1000 * (HOST_COMPLETE_TIMEOUT / HZ));
783 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
784 priv->status &= ~STATUS_CMD_ACTIVE;
785 schedule_reset(priv);
786 return -EIO;
787 }
788
789 if (priv->fatal_error) {
790 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
791 priv->net_dev->name);
792 return -EIO;
793 }
794
795 /* !!!!! HACK TEST !!!!!
796 * When lots of debug trace statements are enabled, the driver
797 * doesn't seem to have as many firmware restart cycles...
798 *
799 * As a test, we're sticking in a 1/100s delay here */
800 schedule_timeout_uninterruptible(msecs_to_jiffies(10));
801
802 return 0;
803
804 fail_unlock:
805 spin_unlock_irqrestore(&priv->low_lock, flags);
806
807 return err;
808}
809
810/*
811 * Verify the values and data access of the hardware
812 * No locks needed or used. No functions called.
813 */
814static int ipw2100_verify(struct ipw2100_priv *priv)
815{
816 u32 data1, data2;
817 u32 address;
818
819 u32 val1 = 0x76543210;
820 u32 val2 = 0xFEDCBA98;
821
822 /* Domain 0 check - all values should be DOA_DEBUG */
823 for (address = IPW_REG_DOA_DEBUG_AREA_START;
824 address < IPW_REG_DOA_DEBUG_AREA_END; address += sizeof(u32)) {
825 read_register(priv->net_dev, address, &data1);
826 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
827 return -EIO;
828 }
829
830 /* Domain 1 check - use arbitrary read/write compare */
831 for (address = 0; address < 5; address++) {
832 /* The memory area is not used now */
833 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
834 val1);
835 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
836 val2);
837 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
838 &data1);
839 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
840 &data2);
841 if (val1 == data1 && val2 == data2)
842 return 0;
843 }
844
845 return -EIO;
846}
847
848/*
849 *
850 * Loop until the CARD_DISABLED bit is the same value as the
851 * supplied parameter
852 *
853 * TODO: See if it would be more efficient to do a wait/wake
854 * cycle and have the completion event trigger the wakeup
855 *
856 */
857#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
858static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
859{
860 int i;
861 u32 card_state;
862 u32 len = sizeof(card_state);
863 int err;
864
865 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
866 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
867 &card_state, &len);
868 if (err) {
869 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
870 "failed.\n");
871 return 0;
872 }
873
874 /* We'll break out if either the HW state says it is
875 * in the state we want, or if HOST_COMPLETE command
876 * finishes */
877 if ((card_state == state) ||
878 ((priv->status & STATUS_ENABLED) ?
879 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
880 if (state == IPW_HW_STATE_ENABLED)
881 priv->status |= STATUS_ENABLED;
882 else
883 priv->status &= ~STATUS_ENABLED;
884
885 return 0;
886 }
887
888 udelay(50);
889 }
890
891 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
892 state ? "DISABLED" : "ENABLED");
893 return -EIO;
894}
895
896/*********************************************************************
897 Procedure : sw_reset_and_clock
898 Purpose : Asserts s/w reset, asserts clock initialization
899 and waits for clock stabilization
900 ********************************************************************/
901static int sw_reset_and_clock(struct ipw2100_priv *priv)
902{
903 int i;
904 u32 r;
905
906 // assert s/w reset
907 write_register(priv->net_dev, IPW_REG_RESET_REG,
908 IPW_AUX_HOST_RESET_REG_SW_RESET);
909
910 // wait for clock stabilization
911 for (i = 0; i < 1000; i++) {
912 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
913
914 // check clock ready bit
915 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
916 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
917 break;
918 }
919
920 if (i == 1000)
921 return -EIO; // TODO: better error value
922
923 /* set "initialization complete" bit to move adapter to
924 * D0 state */
925 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
926 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
927
928 /* wait for clock stabilization */
929 for (i = 0; i < 10000; i++) {
930 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
931
932 /* check clock ready bit */
933 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
934 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
935 break;
936 }
937
938 if (i == 10000)
939 return -EIO; /* TODO: better error value */
940
941 /* set D0 standby bit */
942 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
943 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
944 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
945
946 return 0;
947}
948
949/*********************************************************************
950 Procedure : ipw2100_download_firmware
951 Purpose : Initiaze adapter after power on.
952 The sequence is:
953 1. assert s/w reset first!
954 2. awake clocks & wait for clock stabilization
955 3. hold ARC (don't ask me why...)
956 4. load Dino ucode and reset/clock init again
957 5. zero-out shared mem
958 6. download f/w
959 *******************************************************************/
960static int ipw2100_download_firmware(struct ipw2100_priv *priv)
961{
962 u32 address;
963 int err;
964
965#ifndef CONFIG_PM
966 /* Fetch the firmware and microcode */
967 struct ipw2100_fw ipw2100_firmware;
968#endif
969
970 if (priv->fatal_error) {
971 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
972 "fatal error %d. Interface must be brought down.\n",
973 priv->net_dev->name, priv->fatal_error);
974 return -EINVAL;
975 }
976#ifdef CONFIG_PM
977 if (!ipw2100_firmware.version) {
978 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
979 if (err) {
980 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
981 priv->net_dev->name, err);
982 priv->fatal_error = IPW2100_ERR_FW_LOAD;
983 goto fail;
984 }
985 }
986#else
987 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
988 if (err) {
989 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
990 priv->net_dev->name, err);
991 priv->fatal_error = IPW2100_ERR_FW_LOAD;
992 goto fail;
993 }
994#endif
995 priv->firmware_version = ipw2100_firmware.version;
996
997 /* s/w reset and clock stabilization */
998 err = sw_reset_and_clock(priv);
999 if (err) {
1000 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1001 priv->net_dev->name, err);
1002 goto fail;
1003 }
1004
1005 err = ipw2100_verify(priv);
1006 if (err) {
1007 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1008 priv->net_dev->name, err);
1009 goto fail;
1010 }
1011
1012 /* Hold ARC */
1013 write_nic_dword(priv->net_dev,
1014 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x80000000);
1015
1016 /* allow ARC to run */
1017 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1018
1019 /* load microcode */
1020 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1021 if (err) {
1022 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1023 priv->net_dev->name, err);
1024 goto fail;
1025 }
1026
1027 /* release ARC */
1028 write_nic_dword(priv->net_dev,
1029 IPW_INTERNAL_REGISTER_HALT_AND_RESET, 0x00000000);
1030
1031 /* s/w reset and clock stabilization (again!!!) */
1032 err = sw_reset_and_clock(priv);
1033 if (err) {
1034 printk(KERN_ERR DRV_NAME
1035 ": %s: sw_reset_and_clock failed: %d\n",
1036 priv->net_dev->name, err);
1037 goto fail;
1038 }
1039
1040 /* load f/w */
1041 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1042 if (err) {
1043 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1044 priv->net_dev->name, err);
1045 goto fail;
1046 }
1047#ifndef CONFIG_PM
1048 /*
1049 * When the .resume method of the driver is called, the other
1050 * part of the system, i.e. the ide driver could still stay in
1051 * the suspend stage. This prevents us from loading the firmware
1052 * from the disk. --YZ
1053 */
1054
1055 /* free any storage allocated for firmware image */
1056 ipw2100_release_firmware(priv, &ipw2100_firmware);
1057#endif
1058
1059 /* zero out Domain 1 area indirectly (Si requirement) */
1060 for (address = IPW_HOST_FW_SHARED_AREA0;
1061 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1062 write_nic_dword(priv->net_dev, address, 0);
1063 for (address = IPW_HOST_FW_SHARED_AREA1;
1064 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1065 write_nic_dword(priv->net_dev, address, 0);
1066 for (address = IPW_HOST_FW_SHARED_AREA2;
1067 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1068 write_nic_dword(priv->net_dev, address, 0);
1069 for (address = IPW_HOST_FW_SHARED_AREA3;
1070 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1071 write_nic_dword(priv->net_dev, address, 0);
1072 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1073 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1074 write_nic_dword(priv->net_dev, address, 0);
1075
1076 return 0;
1077
1078 fail:
1079 ipw2100_release_firmware(priv, &ipw2100_firmware);
1080 return err;
1081}
1082
1083static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1084{
1085 if (priv->status & STATUS_INT_ENABLED)
1086 return;
1087 priv->status |= STATUS_INT_ENABLED;
1088 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1089}
1090
1091static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1092{
1093 if (!(priv->status & STATUS_INT_ENABLED))
1094 return;
1095 priv->status &= ~STATUS_INT_ENABLED;
1096 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1097}
1098
1099static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1100{
1101 struct ipw2100_ordinals *ord = &priv->ordinals;
1102
1103 IPW_DEBUG_INFO("enter\n");
1104
1105 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1106 &ord->table1_addr);
1107
1108 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1109 &ord->table2_addr);
1110
1111 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1112 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1113
1114 ord->table2_size &= 0x0000FFFF;
1115
1116 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1117 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1118 IPW_DEBUG_INFO("exit\n");
1119}
1120
1121static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1122{
1123 u32 reg = 0;
1124 /*
1125 * Set GPIO 3 writable by FW; GPIO 1 writable
1126 * by driver and enable clock
1127 */
1128 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1129 IPW_BIT_GPIO_LED_OFF);
1130 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1131}
1132
1133static inline int rf_kill_active(struct ipw2100_priv *priv)
1134{
1135#define MAX_RF_KILL_CHECKS 5
1136#define RF_KILL_CHECK_DELAY 40
1137
1138 unsigned short value = 0;
1139 u32 reg = 0;
1140 int i;
1141
1142 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1143 priv->status &= ~STATUS_RF_KILL_HW;
1144 return 0;
1145 }
1146
1147 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1148 udelay(RF_KILL_CHECK_DELAY);
1149 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1150 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1151 }
1152
1153 if (value == 0)
1154 priv->status |= STATUS_RF_KILL_HW;
1155 else
1156 priv->status &= ~STATUS_RF_KILL_HW;
1157
1158 return (value == 0);
1159}
1160
1161static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1162{
1163 u32 addr, len;
1164 u32 val;
1165
1166 /*
1167 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1168 */
1169 len = sizeof(addr);
1170 if (ipw2100_get_ordinal
1171 (priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS, &addr, &len)) {
1172 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1173 __LINE__);
1174 return -EIO;
1175 }
1176
1177 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1178
1179 /*
1180 * EEPROM version is the byte at offset 0xfd in firmware
1181 * We read 4 bytes, then shift out the byte we actually want */
1182 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1183 priv->eeprom_version = (val >> 24) & 0xFF;
1184 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1185
1186 /*
1187 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1188 *
1189 * notice that the EEPROM bit is reverse polarity, i.e.
1190 * bit = 0 signifies HW RF kill switch is supported
1191 * bit = 1 signifies HW RF kill switch is NOT supported
1192 */
1193 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1194 if (!((val >> 24) & 0x01))
1195 priv->hw_features |= HW_FEATURE_RFKILL;
1196
1197 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1198 (priv->hw_features & HW_FEATURE_RFKILL) ? "" : "not ");
1199
1200 return 0;
1201}
1202
1203/*
1204 * Start firmware execution after power on and intialization
1205 * The sequence is:
1206 * 1. Release ARC
1207 * 2. Wait for f/w initialization completes;
1208 */
1209static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1210{
1211 int i;
1212 u32 inta, inta_mask, gpio;
1213
1214 IPW_DEBUG_INFO("enter\n");
1215
1216 if (priv->status & STATUS_RUNNING)
1217 return 0;
1218
1219 /*
1220 * Initialize the hw - drive adapter to DO state by setting
1221 * init_done bit. Wait for clk_ready bit and Download
1222 * fw & dino ucode
1223 */
1224 if (ipw2100_download_firmware(priv)) {
1225 printk(KERN_ERR DRV_NAME
1226 ": %s: Failed to power on the adapter.\n",
1227 priv->net_dev->name);
1228 return -EIO;
1229 }
1230
1231 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1232 * in the firmware RBD and TBD ring queue */
1233 ipw2100_queues_initialize(priv);
1234
1235 ipw2100_hw_set_gpio(priv);
1236
1237 /* TODO -- Look at disabling interrupts here to make sure none
1238 * get fired during FW initialization */
1239
1240 /* Release ARC - clear reset bit */
1241 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1242
1243 /* wait for f/w intialization complete */
1244 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1245 i = 5000;
1246 do {
1247 schedule_timeout_uninterruptible(msecs_to_jiffies(40));
1248 /* Todo... wait for sync command ... */
1249
1250 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1251
1252 /* check "init done" bit */
1253 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1254 /* reset "init done" bit */
1255 write_register(priv->net_dev, IPW_REG_INTA,
1256 IPW2100_INTA_FW_INIT_DONE);
1257 break;
1258 }
1259
1260 /* check error conditions : we check these after the firmware
1261 * check so that if there is an error, the interrupt handler
1262 * will see it and the adapter will be reset */
1263 if (inta &
1264 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1265 /* clear error conditions */
1266 write_register(priv->net_dev, IPW_REG_INTA,
1267 IPW2100_INTA_FATAL_ERROR |
1268 IPW2100_INTA_PARITY_ERROR);
1269 }
1270 } while (i--);
1271
1272 /* Clear out any pending INTAs since we aren't supposed to have
1273 * interrupts enabled at this point... */
1274 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1275 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1276 inta &= IPW_INTERRUPT_MASK;
1277 /* Clear out any pending interrupts */
1278 if (inta & inta_mask)
1279 write_register(priv->net_dev, IPW_REG_INTA, inta);
1280
1281 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1282 i ? "SUCCESS" : "FAILED");
1283
1284 if (!i) {
1285 printk(KERN_WARNING DRV_NAME
1286 ": %s: Firmware did not initialize.\n",
1287 priv->net_dev->name);
1288 return -EIO;
1289 }
1290
1291 /* allow firmware to write to GPIO1 & GPIO3 */
1292 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1293
1294 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1295
1296 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1297
1298 /* Ready to receive commands */
1299 priv->status |= STATUS_RUNNING;
1300
1301 /* The adapter has been reset; we are not associated */
1302 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1303
1304 IPW_DEBUG_INFO("exit\n");
1305
1306 return 0;
1307}
1308
1309static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1310{
1311 if (!priv->fatal_error)
1312 return;
1313
1314 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1315 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1316 priv->fatal_error = 0;
1317}
1318
1319/* NOTE: Our interrupt is disabled when this method is called */
1320static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1321{
1322 u32 reg;
1323 int i;
1324
1325 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1326
1327 ipw2100_hw_set_gpio(priv);
1328
1329 /* Step 1. Stop Master Assert */
1330 write_register(priv->net_dev, IPW_REG_RESET_REG,
1331 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1332
1333 /* Step 2. Wait for stop Master Assert
1334 * (not more then 50us, otherwise ret error */
1335 i = 5;
1336 do {
1337 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1338 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1339
1340 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1341 break;
1342 } while (i--);
1343
1344 priv->status &= ~STATUS_RESET_PENDING;
1345
1346 if (!i) {
1347 IPW_DEBUG_INFO
1348 ("exit - waited too long for master assert stop\n");
1349 return -EIO;
1350 }
1351
1352 write_register(priv->net_dev, IPW_REG_RESET_REG,
1353 IPW_AUX_HOST_RESET_REG_SW_RESET);
1354
1355 /* Reset any fatal_error conditions */
1356 ipw2100_reset_fatalerror(priv);
1357
1358 /* At this point, the adapter is now stopped and disabled */
1359 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1360 STATUS_ASSOCIATED | STATUS_ENABLED);
1361
1362 return 0;
1363}
1364
1365/*
1366 * Send the CARD_DISABLE_PHY_OFF comamnd to the card to disable it
1367 *
1368 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1369 *
1370 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1371 * if STATUS_ASSN_LOST is sent.
1372 */
1373static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1374{
1375
1376#define HW_PHY_OFF_LOOP_DELAY (HZ / 5000)
1377
1378 struct host_command cmd = {
1379 .host_command = CARD_DISABLE_PHY_OFF,
1380 .host_command_sequence = 0,
1381 .host_command_length = 0,
1382 };
1383 int err, i;
1384 u32 val1, val2;
1385
1386 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1387
1388 /* Turn off the radio */
1389 err = ipw2100_hw_send_command(priv, &cmd);
1390 if (err)
1391 return err;
1392
1393 for (i = 0; i < 2500; i++) {
1394 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1395 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1396
1397 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1398 (val2 & IPW2100_COMMAND_PHY_OFF))
1399 return 0;
1400
1401 schedule_timeout_uninterruptible(HW_PHY_OFF_LOOP_DELAY);
1402 }
1403
1404 return -EIO;
1405}
1406
1407static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1408{
1409 struct host_command cmd = {
1410 .host_command = HOST_COMPLETE,
1411 .host_command_sequence = 0,
1412 .host_command_length = 0
1413 };
1414 int err = 0;
1415
1416 IPW_DEBUG_HC("HOST_COMPLETE\n");
1417
1418 if (priv->status & STATUS_ENABLED)
1419 return 0;
1420
1421 down(&priv->adapter_sem);
1422
1423 if (rf_kill_active(priv)) {
1424 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1425 goto fail_up;
1426 }
1427
1428 err = ipw2100_hw_send_command(priv, &cmd);
1429 if (err) {
1430 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1431 goto fail_up;
1432 }
1433
1434 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1435 if (err) {
1436 IPW_DEBUG_INFO("%s: card not responding to init command.\n",
1437 priv->net_dev->name);
1438 goto fail_up;
1439 }
1440
1441 if (priv->stop_hang_check) {
1442 priv->stop_hang_check = 0;
1443 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
1444 }
1445
1446 fail_up:
1447 up(&priv->adapter_sem);
1448 return err;
1449}
1450
1451static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1452{
1453#define HW_POWER_DOWN_DELAY (msecs_to_jiffies(100))
1454
1455 struct host_command cmd = {
1456 .host_command = HOST_PRE_POWER_DOWN,
1457 .host_command_sequence = 0,
1458 .host_command_length = 0,
1459 };
1460 int err, i;
1461 u32 reg;
1462
1463 if (!(priv->status & STATUS_RUNNING))
1464 return 0;
1465
1466 priv->status |= STATUS_STOPPING;
1467
1468 /* We can only shut down the card if the firmware is operational. So,
1469 * if we haven't reset since a fatal_error, then we can not send the
1470 * shutdown commands. */
1471 if (!priv->fatal_error) {
1472 /* First, make sure the adapter is enabled so that the PHY_OFF
1473 * command can shut it down */
1474 ipw2100_enable_adapter(priv);
1475
1476 err = ipw2100_hw_phy_off(priv);
1477 if (err)
1478 printk(KERN_WARNING DRV_NAME
1479 ": Error disabling radio %d\n", err);
1480
1481 /*
1482 * If in D0-standby mode going directly to D3 may cause a
1483 * PCI bus violation. Therefore we must change out of the D0
1484 * state.
1485 *
1486 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1487 * hardware from going into standby mode and will transition
1488 * out of D0-standy if it is already in that state.
1489 *
1490 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1491 * driver upon completion. Once received, the driver can
1492 * proceed to the D3 state.
1493 *
1494 * Prepare for power down command to fw. This command would
1495 * take HW out of D0-standby and prepare it for D3 state.
1496 *
1497 * Currently FW does not support event notification for this
1498 * event. Therefore, skip waiting for it. Just wait a fixed
1499 * 100ms
1500 */
1501 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1502
1503 err = ipw2100_hw_send_command(priv, &cmd);
1504 if (err)
1505 printk(KERN_WARNING DRV_NAME ": "
1506 "%s: Power down command failed: Error %d\n",
1507 priv->net_dev->name, err);
1508 else
1509 schedule_timeout_uninterruptible(HW_POWER_DOWN_DELAY);
1510 }
1511
1512 priv->status &= ~STATUS_ENABLED;
1513
1514 /*
1515 * Set GPIO 3 writable by FW; GPIO 1 writable
1516 * by driver and enable clock
1517 */
1518 ipw2100_hw_set_gpio(priv);
1519
1520 /*
1521 * Power down adapter. Sequence:
1522 * 1. Stop master assert (RESET_REG[9]=1)
1523 * 2. Wait for stop master (RESET_REG[8]==1)
1524 * 3. S/w reset assert (RESET_REG[7] = 1)
1525 */
1526
1527 /* Stop master assert */
1528 write_register(priv->net_dev, IPW_REG_RESET_REG,
1529 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1530
1531 /* wait stop master not more than 50 usec.
1532 * Otherwise return error. */
1533 for (i = 5; i > 0; i--) {
1534 udelay(10);
1535
1536 /* Check master stop bit */
1537 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1538
1539 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1540 break;
1541 }
1542
1543 if (i == 0)
1544 printk(KERN_WARNING DRV_NAME
1545 ": %s: Could now power down adapter.\n",
1546 priv->net_dev->name);
1547
1548 /* assert s/w reset */
1549 write_register(priv->net_dev, IPW_REG_RESET_REG,
1550 IPW_AUX_HOST_RESET_REG_SW_RESET);
1551
1552 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1553
1554 return 0;
1555}
1556
1557static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1558{
1559 struct host_command cmd = {
1560 .host_command = CARD_DISABLE,
1561 .host_command_sequence = 0,
1562 .host_command_length = 0
1563 };
1564 int err = 0;
1565
1566 IPW_DEBUG_HC("CARD_DISABLE\n");
1567
1568 if (!(priv->status & STATUS_ENABLED))
1569 return 0;
1570
1571 /* Make sure we clear the associated state */
1572 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1573
1574 if (!priv->stop_hang_check) {
1575 priv->stop_hang_check = 1;
1576 cancel_delayed_work(&priv->hang_check);
1577 }
1578
1579 down(&priv->adapter_sem);
1580
1581 err = ipw2100_hw_send_command(priv, &cmd);
1582 if (err) {
1583 printk(KERN_WARNING DRV_NAME
1584 ": exit - failed to send CARD_DISABLE command\n");
1585 goto fail_up;
1586 }
1587
1588 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1589 if (err) {
1590 printk(KERN_WARNING DRV_NAME
1591 ": exit - card failed to change to DISABLED\n");
1592 goto fail_up;
1593 }
1594
1595 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1596
1597 fail_up:
1598 up(&priv->adapter_sem);
1599 return err;
1600}
1601
1602static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1603{
1604 struct host_command cmd = {
1605 .host_command = SET_SCAN_OPTIONS,
1606 .host_command_sequence = 0,
1607 .host_command_length = 8
1608 };
1609 int err;
1610
1611 IPW_DEBUG_INFO("enter\n");
1612
1613 IPW_DEBUG_SCAN("setting scan options\n");
1614
1615 cmd.host_command_parameters[0] = 0;
1616
1617 if (!(priv->config & CFG_ASSOCIATE))
1618 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1619 if ((priv->ieee->sec.flags & SEC_ENABLED) && priv->ieee->sec.enabled)
1620 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1621 if (priv->config & CFG_PASSIVE_SCAN)
1622 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1623
1624 cmd.host_command_parameters[1] = priv->channel_mask;
1625
1626 err = ipw2100_hw_send_command(priv, &cmd);
1627
1628 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1629 cmd.host_command_parameters[0]);
1630
1631 return err;
1632}
1633
1634static int ipw2100_start_scan(struct ipw2100_priv *priv)
1635{
1636 struct host_command cmd = {
1637 .host_command = BROADCAST_SCAN,
1638 .host_command_sequence = 0,
1639 .host_command_length = 4
1640 };
1641 int err;
1642
1643 IPW_DEBUG_HC("START_SCAN\n");
1644
1645 cmd.host_command_parameters[0] = 0;
1646
1647 /* No scanning if in monitor mode */
1648 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1649 return 1;
1650
1651 if (priv->status & STATUS_SCANNING) {
1652 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1653 return 0;
1654 }
1655
1656 IPW_DEBUG_INFO("enter\n");
1657
1658 /* Not clearing here; doing so makes iwlist always return nothing...
1659 *
1660 * We should modify the table logic to use aging tables vs. clearing
1661 * the table on each scan start.
1662 */
1663 IPW_DEBUG_SCAN("starting scan\n");
1664
1665 priv->status |= STATUS_SCANNING;
1666 err = ipw2100_hw_send_command(priv, &cmd);
1667 if (err)
1668 priv->status &= ~STATUS_SCANNING;
1669
1670 IPW_DEBUG_INFO("exit\n");
1671
1672 return err;
1673}
1674
1675static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1676{
1677 unsigned long flags;
1678 int rc = 0;
1679 u32 lock;
1680 u32 ord_len = sizeof(lock);
1681
1682 /* Quite if manually disabled. */
1683 if (priv->status & STATUS_RF_KILL_SW) {
1684 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1685 "switch\n", priv->net_dev->name);
1686 return 0;
1687 }
1688
1689 /* If the interrupt is enabled, turn it off... */
1690 spin_lock_irqsave(&priv->low_lock, flags);
1691 ipw2100_disable_interrupts(priv);
1692
1693 /* Reset any fatal_error conditions */
1694 ipw2100_reset_fatalerror(priv);
1695 spin_unlock_irqrestore(&priv->low_lock, flags);
1696
1697 if (priv->status & STATUS_POWERED ||
1698 (priv->status & STATUS_RESET_PENDING)) {
1699 /* Power cycle the card ... */
1700 if (ipw2100_power_cycle_adapter(priv)) {
1701 printk(KERN_WARNING DRV_NAME
1702 ": %s: Could not cycle adapter.\n",
1703 priv->net_dev->name);
1704 rc = 1;
1705 goto exit;
1706 }
1707 } else
1708 priv->status |= STATUS_POWERED;
1709
1710 /* Load the firmware, start the clocks, etc. */
1711 if (ipw2100_start_adapter(priv)) {
1712 printk(KERN_ERR DRV_NAME
1713 ": %s: Failed to start the firmware.\n",
1714 priv->net_dev->name);
1715 rc = 1;
1716 goto exit;
1717 }
1718
1719 ipw2100_initialize_ordinals(priv);
1720
1721 /* Determine capabilities of this particular HW configuration */
1722 if (ipw2100_get_hw_features(priv)) {
1723 printk(KERN_ERR DRV_NAME
1724 ": %s: Failed to determine HW features.\n",
1725 priv->net_dev->name);
1726 rc = 1;
1727 goto exit;
1728 }
1729
1730 lock = LOCK_NONE;
1731 if (ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len)) {
1732 printk(KERN_ERR DRV_NAME
1733 ": %s: Failed to clear ordinal lock.\n",
1734 priv->net_dev->name);
1735 rc = 1;
1736 goto exit;
1737 }
1738
1739 priv->status &= ~STATUS_SCANNING;
1740
1741 if (rf_kill_active(priv)) {
1742 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1743 priv->net_dev->name);
1744
1745 if (priv->stop_rf_kill) {
1746 priv->stop_rf_kill = 0;
1747 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
1748 }
1749
1750 deferred = 1;
1751 }
1752
1753 /* Turn on the interrupt so that commands can be processed */
1754 ipw2100_enable_interrupts(priv);
1755
1756 /* Send all of the commands that must be sent prior to
1757 * HOST_COMPLETE */
1758 if (ipw2100_adapter_setup(priv)) {
1759 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1760 priv->net_dev->name);
1761 rc = 1;
1762 goto exit;
1763 }
1764
1765 if (!deferred) {
1766 /* Enable the adapter - sends HOST_COMPLETE */
1767 if (ipw2100_enable_adapter(priv)) {
1768 printk(KERN_ERR DRV_NAME ": "
1769 "%s: failed in call to enable adapter.\n",
1770 priv->net_dev->name);
1771 ipw2100_hw_stop_adapter(priv);
1772 rc = 1;
1773 goto exit;
1774 }
1775
1776 /* Start a scan . . . */
1777 ipw2100_set_scan_options(priv);
1778 ipw2100_start_scan(priv);
1779 }
1780
1781 exit:
1782 return rc;
1783}
1784
1785/* Called by register_netdev() */
1786static int ipw2100_net_init(struct net_device *dev)
1787{
1788 struct ipw2100_priv *priv = ieee80211_priv(dev);
1789 return ipw2100_up(priv, 1);
1790}
1791
1792static void ipw2100_down(struct ipw2100_priv *priv)
1793{
1794 unsigned long flags;
1795 union iwreq_data wrqu = {
1796 .ap_addr = {
1797 .sa_family = ARPHRD_ETHER}
1798 };
1799 int associated = priv->status & STATUS_ASSOCIATED;
1800
1801 /* Kill the RF switch timer */
1802 if (!priv->stop_rf_kill) {
1803 priv->stop_rf_kill = 1;
1804 cancel_delayed_work(&priv->rf_kill);
1805 }
1806
1807 /* Kill the firmare hang check timer */
1808 if (!priv->stop_hang_check) {
1809 priv->stop_hang_check = 1;
1810 cancel_delayed_work(&priv->hang_check);
1811 }
1812
1813 /* Kill any pending resets */
1814 if (priv->status & STATUS_RESET_PENDING)
1815 cancel_delayed_work(&priv->reset_work);
1816
1817 /* Make sure the interrupt is on so that FW commands will be
1818 * processed correctly */
1819 spin_lock_irqsave(&priv->low_lock, flags);
1820 ipw2100_enable_interrupts(priv);
1821 spin_unlock_irqrestore(&priv->low_lock, flags);
1822
1823 if (ipw2100_hw_stop_adapter(priv))
1824 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1825 priv->net_dev->name);
1826
1827 /* Do not disable the interrupt until _after_ we disable
1828 * the adaptor. Otherwise the CARD_DISABLE command will never
1829 * be ack'd by the firmware */
1830 spin_lock_irqsave(&priv->low_lock, flags);
1831 ipw2100_disable_interrupts(priv);
1832 spin_unlock_irqrestore(&priv->low_lock, flags);
1833
1834#ifdef ACPI_CSTATE_LIMIT_DEFINED
1835 if (priv->config & CFG_C3_DISABLED) {
1836 IPW_DEBUG_INFO(": Resetting C3 transitions.\n");
1837 acpi_set_cstate_limit(priv->cstate_limit);
1838 priv->config &= ~CFG_C3_DISABLED;
1839 }
1840#endif
1841
1842 /* We have to signal any supplicant if we are disassociating */
1843 if (associated)
1844 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1845
1846 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1847 netif_carrier_off(priv->net_dev);
1848 netif_stop_queue(priv->net_dev);
1849}
1850
1851static void ipw2100_reset_adapter(struct ipw2100_priv *priv)
1852{
1853 unsigned long flags;
1854 union iwreq_data wrqu = {
1855 .ap_addr = {
1856 .sa_family = ARPHRD_ETHER}
1857 };
1858 int associated = priv->status & STATUS_ASSOCIATED;
1859
1860 spin_lock_irqsave(&priv->low_lock, flags);
1861 IPW_DEBUG_INFO(": %s: Restarting adapter.\n", priv->net_dev->name);
1862 priv->resets++;
1863 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1864 priv->status |= STATUS_SECURITY_UPDATED;
1865
1866 /* Force a power cycle even if interface hasn't been opened
1867 * yet */
1868 cancel_delayed_work(&priv->reset_work);
1869 priv->status |= STATUS_RESET_PENDING;
1870 spin_unlock_irqrestore(&priv->low_lock, flags);
1871
1872 down(&priv->action_sem);
1873 /* stop timed checks so that they don't interfere with reset */
1874 priv->stop_hang_check = 1;
1875 cancel_delayed_work(&priv->hang_check);
1876
1877 /* We have to signal any supplicant if we are disassociating */
1878 if (associated)
1879 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1880
1881 ipw2100_up(priv, 0);
1882 up(&priv->action_sem);
1883
1884}
1885
1886static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1887{
1888
1889#define MAC_ASSOCIATION_READ_DELAY (HZ)
1890 int ret, len, essid_len;
1891 char essid[IW_ESSID_MAX_SIZE];
1892 u32 txrate;
1893 u32 chan;
1894 char *txratename;
1895 u8 bssid[ETH_ALEN];
1896
1897 /*
1898 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1899 * an actual MAC of the AP. Seems like FW sets this
1900 * address too late. Read it later and expose through
1901 * /proc or schedule a later task to query and update
1902 */
1903
1904 essid_len = IW_ESSID_MAX_SIZE;
1905 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
1906 essid, &essid_len);
1907 if (ret) {
1908 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1909 __LINE__);
1910 return;
1911 }
1912
1913 len = sizeof(u32);
1914 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &txrate, &len);
1915 if (ret) {
1916 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1917 __LINE__);
1918 return;
1919 }
1920
1921 len = sizeof(u32);
1922 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
1923 if (ret) {
1924 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1925 __LINE__);
1926 return;
1927 }
1928 len = ETH_ALEN;
1929 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
1930 if (ret) {
1931 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1932 __LINE__);
1933 return;
1934 }
1935 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
1936
1937 switch (txrate) {
1938 case TX_RATE_1_MBIT:
1939 txratename = "1Mbps";
1940 break;
1941 case TX_RATE_2_MBIT:
1942 txratename = "2Mbsp";
1943 break;
1944 case TX_RATE_5_5_MBIT:
1945 txratename = "5.5Mbps";
1946 break;
1947 case TX_RATE_11_MBIT:
1948 txratename = "11Mbps";
1949 break;
1950 default:
1951 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
1952 txratename = "unknown rate";
1953 break;
1954 }
1955
1956 IPW_DEBUG_INFO("%s: Associated with '%s' at %s, channel %d (BSSID="
1957 MAC_FMT ")\n",
1958 priv->net_dev->name, escape_essid(essid, essid_len),
1959 txratename, chan, MAC_ARG(bssid));
1960
1961 /* now we copy read ssid into dev */
1962 if (!(priv->config & CFG_STATIC_ESSID)) {
1963 priv->essid_len = min((u8) essid_len, (u8) IW_ESSID_MAX_SIZE);
1964 memcpy(priv->essid, essid, priv->essid_len);
1965 }
1966 priv->channel = chan;
1967 memcpy(priv->bssid, bssid, ETH_ALEN);
1968
1969 priv->status |= STATUS_ASSOCIATING;
1970 priv->connect_start = get_seconds();
1971
1972 queue_delayed_work(priv->workqueue, &priv->wx_event_work, HZ / 10);
1973}
1974
1975static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
1976 int length, int batch_mode)
1977{
1978 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
1979 struct host_command cmd = {
1980 .host_command = SSID,
1981 .host_command_sequence = 0,
1982 .host_command_length = ssid_len
1983 };
1984 int err;
1985
1986 IPW_DEBUG_HC("SSID: '%s'\n", escape_essid(essid, ssid_len));
1987
1988 if (ssid_len)
1989 memcpy(cmd.host_command_parameters, essid, ssid_len);
1990
1991 if (!batch_mode) {
1992 err = ipw2100_disable_adapter(priv);
1993 if (err)
1994 return err;
1995 }
1996
1997 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
1998 * disable auto association -- so we cheat by setting a bogus SSID */
1999 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2000 int i;
2001 u8 *bogus = (u8 *) cmd.host_command_parameters;
2002 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2003 bogus[i] = 0x18 + i;
2004 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2005 }
2006
2007 /* NOTE: We always send the SSID command even if the provided ESSID is
2008 * the same as what we currently think is set. */
2009
2010 err = ipw2100_hw_send_command(priv, &cmd);
2011 if (!err) {
2012 memset(priv->essid + ssid_len, 0, IW_ESSID_MAX_SIZE - ssid_len);
2013 memcpy(priv->essid, essid, ssid_len);
2014 priv->essid_len = ssid_len;
2015 }
2016
2017 if (!batch_mode) {
2018 if (ipw2100_enable_adapter(priv))
2019 err = -EIO;
2020 }
2021
2022 return err;
2023}
2024
2025static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2026{
2027 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2028 "disassociated: '%s' " MAC_FMT " \n",
2029 escape_essid(priv->essid, priv->essid_len),
2030 MAC_ARG(priv->bssid));
2031
2032 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2033
2034 if (priv->status & STATUS_STOPPING) {
2035 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2036 return;
2037 }
2038
2039 memset(priv->bssid, 0, ETH_ALEN);
2040 memset(priv->ieee->bssid, 0, ETH_ALEN);
2041
2042 netif_carrier_off(priv->net_dev);
2043 netif_stop_queue(priv->net_dev);
2044
2045 if (!(priv->status & STATUS_RUNNING))
2046 return;
2047
2048 if (priv->status & STATUS_SECURITY_UPDATED)
2049 queue_work(priv->workqueue, &priv->security_work);
2050
2051 queue_work(priv->workqueue, &priv->wx_event_work);
2052}
2053
2054static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2055{
2056 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2057 priv->net_dev->name);
2058
2059 /* RF_KILL is now enabled (else we wouldn't be here) */
2060 priv->status |= STATUS_RF_KILL_HW;
2061
2062#ifdef ACPI_CSTATE_LIMIT_DEFINED
2063 if (priv->config & CFG_C3_DISABLED) {
2064 IPW_DEBUG_INFO(": Resetting C3 transitions.\n");
2065 acpi_set_cstate_limit(priv->cstate_limit);
2066 priv->config &= ~CFG_C3_DISABLED;
2067 }
2068#endif
2069
2070 /* Make sure the RF Kill check timer is running */
2071 priv->stop_rf_kill = 0;
2072 cancel_delayed_work(&priv->rf_kill);
2073 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
2074}
2075
2076static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2077{
2078 IPW_DEBUG_SCAN("scan complete\n");
2079 /* Age the scan results... */
2080 priv->ieee->scans++;
2081 priv->status &= ~STATUS_SCANNING;
2082}
2083
2084#ifdef CONFIG_IPW_DEBUG
2085#define IPW2100_HANDLER(v, f) { v, f, # v }
2086struct ipw2100_status_indicator {
2087 int status;
2088 void (*cb) (struct ipw2100_priv * priv, u32 status);
2089 char *name;
2090};
2091#else
2092#define IPW2100_HANDLER(v, f) { v, f }
2093struct ipw2100_status_indicator {
2094 int status;
2095 void (*cb) (struct ipw2100_priv * priv, u32 status);
2096};
2097#endif /* CONFIG_IPW_DEBUG */
2098
2099static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2100{
2101 IPW_DEBUG_SCAN("Scanning...\n");
2102 priv->status |= STATUS_SCANNING;
2103}
2104
2105static const struct ipw2100_status_indicator status_handlers[] = {
2106 IPW2100_HANDLER(IPW_STATE_INITIALIZED, NULL),
2107 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, NULL),
2108 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2109 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2110 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, NULL),
2111 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2112 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, NULL),
2113 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, NULL),
2114 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2115 IPW2100_HANDLER(IPW_STATE_DISABLED, NULL),
2116 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, NULL),
2117 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2118 IPW2100_HANDLER(-1, NULL)
2119};
2120
2121static void isr_status_change(struct ipw2100_priv *priv, int status)
2122{
2123 int i;
2124
2125 if (status == IPW_STATE_SCANNING &&
2126 priv->status & STATUS_ASSOCIATED &&
2127 !(priv->status & STATUS_SCANNING)) {
2128 IPW_DEBUG_INFO("Scan detected while associated, with "
2129 "no scan request. Restarting firmware.\n");
2130
2131 /* Wake up any sleeping jobs */
2132 schedule_reset(priv);
2133 }
2134
2135 for (i = 0; status_handlers[i].status != -1; i++) {
2136 if (status == status_handlers[i].status) {
2137 IPW_DEBUG_NOTIF("Status change: %s\n",
2138 status_handlers[i].name);
2139 if (status_handlers[i].cb)
2140 status_handlers[i].cb(priv, status);
2141 priv->wstats.status = status;
2142 return;
2143 }
2144 }
2145
2146 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2147}
2148
2149static void isr_rx_complete_command(struct ipw2100_priv *priv,
2150 struct ipw2100_cmd_header *cmd)
2151{
2152#ifdef CONFIG_IPW_DEBUG
2153 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2154 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2155 command_types[cmd->host_command_reg],
2156 cmd->host_command_reg);
2157 }
2158#endif
2159 if (cmd->host_command_reg == HOST_COMPLETE)
2160 priv->status |= STATUS_ENABLED;
2161
2162 if (cmd->host_command_reg == CARD_DISABLE)
2163 priv->status &= ~STATUS_ENABLED;
2164
2165 priv->status &= ~STATUS_CMD_ACTIVE;
2166
2167 wake_up_interruptible(&priv->wait_command_queue);
2168}
2169
2170#ifdef CONFIG_IPW_DEBUG
2171static const char *frame_types[] = {
2172 "COMMAND_STATUS_VAL",
2173 "STATUS_CHANGE_VAL",
2174 "P80211_DATA_VAL",
2175 "P8023_DATA_VAL",
2176 "HOST_NOTIFICATION_VAL"
2177};
2178#endif
2179
2180static inline int ipw2100_alloc_skb(struct ipw2100_priv *priv,
2181 struct ipw2100_rx_packet *packet)
2182{
2183 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2184 if (!packet->skb)
2185 return -ENOMEM;
2186
2187 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2188 packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2189 sizeof(struct ipw2100_rx),
2190 PCI_DMA_FROMDEVICE);
2191 /* NOTE: pci_map_single does not return an error code, and 0 is a valid
2192 * dma_addr */
2193
2194 return 0;
2195}
2196
2197#define SEARCH_ERROR 0xffffffff
2198#define SEARCH_FAIL 0xfffffffe
2199#define SEARCH_SUCCESS 0xfffffff0
2200#define SEARCH_DISCARD 0
2201#define SEARCH_SNAPSHOT 1
2202
2203#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2204static inline int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2205{
2206 int i;
2207 if (priv->snapshot[0])
2208 return 1;
2209 for (i = 0; i < 0x30; i++) {
2210 priv->snapshot[i] = (u8 *) kmalloc(0x1000, GFP_ATOMIC);
2211 if (!priv->snapshot[i]) {
2212 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2213 "buffer %d\n", priv->net_dev->name, i);
2214 while (i > 0)
2215 kfree(priv->snapshot[--i]);
2216 priv->snapshot[0] = NULL;
2217 return 0;
2218 }
2219 }
2220
2221 return 1;
2222}
2223
2224static inline void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2225{
2226 int i;
2227 if (!priv->snapshot[0])
2228 return;
2229 for (i = 0; i < 0x30; i++)
2230 kfree(priv->snapshot[i]);
2231 priv->snapshot[0] = NULL;
2232}
2233
2234static inline u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 * in_buf,
2235 size_t len, int mode)
2236{
2237 u32 i, j;
2238 u32 tmp;
2239 u8 *s, *d;
2240 u32 ret;
2241
2242 s = in_buf;
2243 if (mode == SEARCH_SNAPSHOT) {
2244 if (!ipw2100_snapshot_alloc(priv))
2245 mode = SEARCH_DISCARD;
2246 }
2247
2248 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2249 read_nic_dword(priv->net_dev, i, &tmp);
2250 if (mode == SEARCH_SNAPSHOT)
2251 *(u32 *) SNAPSHOT_ADDR(i) = tmp;
2252 if (ret == SEARCH_FAIL) {
2253 d = (u8 *) & tmp;
2254 for (j = 0; j < 4; j++) {
2255 if (*s != *d) {
2256 s = in_buf;
2257 continue;
2258 }
2259
2260 s++;
2261 d++;
2262
2263 if ((s - in_buf) == len)
2264 ret = (i + j) - len + 1;
2265 }
2266 } else if (mode == SEARCH_DISCARD)
2267 return ret;
2268 }
2269
2270 return ret;
2271}
2272
2273/*
2274 *
2275 * 0) Disconnect the SKB from the firmware (just unmap)
2276 * 1) Pack the ETH header into the SKB
2277 * 2) Pass the SKB to the network stack
2278 *
2279 * When packet is provided by the firmware, it contains the following:
2280 *
2281 * . ieee80211_hdr
2282 * . ieee80211_snap_hdr
2283 *
2284 * The size of the constructed ethernet
2285 *
2286 */
2287#ifdef CONFIG_IPW2100_RX_DEBUG
2288static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2289#endif
2290
2291static inline void ipw2100_corruption_detected(struct ipw2100_priv *priv, int i)
2292{
2293#ifdef CONFIG_IPW_DEBUG_C3
2294 struct ipw2100_status *status = &priv->status_queue.drv[i];
2295 u32 match, reg;
2296 int j;
2297#endif
2298#ifdef ACPI_CSTATE_LIMIT_DEFINED
2299 int limit;
2300#endif
2301
2302 IPW_DEBUG_INFO(": PCI latency error detected at 0x%04zX.\n",
2303 i * sizeof(struct ipw2100_status));
2304
2305#ifdef ACPI_CSTATE_LIMIT_DEFINED
2306 IPW_DEBUG_INFO(": Disabling C3 transitions.\n");
2307 limit = acpi_get_cstate_limit();
2308 if (limit > 2) {
2309 priv->cstate_limit = limit;
2310 acpi_set_cstate_limit(2);
2311 priv->config |= CFG_C3_DISABLED;
2312 }
2313#endif
2314
2315#ifdef CONFIG_IPW_DEBUG_C3
2316 /* Halt the fimrware so we can get a good image */
2317 write_register(priv->net_dev, IPW_REG_RESET_REG,
2318 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2319 j = 5;
2320 do {
2321 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2322 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2323
2324 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2325 break;
2326 } while (j--);
2327
2328 match = ipw2100_match_buf(priv, (u8 *) status,
2329 sizeof(struct ipw2100_status),
2330 SEARCH_SNAPSHOT);
2331 if (match < SEARCH_SUCCESS)
2332 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2333 "offset 0x%06X, length %d:\n",
2334 priv->net_dev->name, match,
2335 sizeof(struct ipw2100_status));
2336 else
2337 IPW_DEBUG_INFO("%s: No DMA status match in "
2338 "Firmware.\n", priv->net_dev->name);
2339
2340 printk_buf((u8 *) priv->status_queue.drv,
2341 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2342#endif
2343
2344 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2345 priv->ieee->stats.rx_errors++;
2346 schedule_reset(priv);
2347}
2348
2349static inline void isr_rx(struct ipw2100_priv *priv, int i,
2350 struct ieee80211_rx_stats *stats)
2351{
2352 struct ipw2100_status *status = &priv->status_queue.drv[i];
2353 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2354
2355 IPW_DEBUG_RX("Handler...\n");
2356
2357 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2358 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2359 " Dropping.\n",
2360 priv->net_dev->name,
2361 status->frame_size, skb_tailroom(packet->skb));
2362 priv->ieee->stats.rx_errors++;
2363 return;
2364 }
2365
2366 if (unlikely(!netif_running(priv->net_dev))) {
2367 priv->ieee->stats.rx_errors++;
2368 priv->wstats.discard.misc++;
2369 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2370 return;
2371 }
2372#ifdef CONFIG_IPW2100_MONITOR
2373 if (unlikely(priv->ieee->iw_mode == IW_MODE_MONITOR &&
2374 priv->config & CFG_CRC_CHECK &&
2375 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2376 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2377 priv->ieee->stats.rx_errors++;
2378 return;
2379 }
2380#endif
2381
2382 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2383 !(priv->status & STATUS_ASSOCIATED))) {
2384 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2385 priv->wstats.discard.misc++;
2386 return;
2387 }
2388
2389 pci_unmap_single(priv->pci_dev,
2390 packet->dma_addr,
2391 sizeof(struct ipw2100_rx), PCI_DMA_FROMDEVICE);
2392
2393 skb_put(packet->skb, status->frame_size);
2394
2395#ifdef CONFIG_IPW2100_RX_DEBUG
2396 /* Make a copy of the frame so we can dump it to the logs if
2397 * ieee80211_rx fails */
2398 memcpy(packet_data, packet->skb->data,
2399 min_t(u32, status->frame_size, IPW_RX_NIC_BUFFER_LENGTH));
2400#endif
2401
2402 if (!ieee80211_rx(priv->ieee, packet->skb, stats)) {
2403#ifdef CONFIG_IPW2100_RX_DEBUG
2404 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2405 priv->net_dev->name);
2406 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2407#endif
2408 priv->ieee->stats.rx_errors++;
2409
2410 /* ieee80211_rx failed, so it didn't free the SKB */
2411 dev_kfree_skb_any(packet->skb);
2412 packet->skb = NULL;
2413 }
2414
2415 /* We need to allocate a new SKB and attach it to the RDB. */
2416 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2417 printk(KERN_WARNING DRV_NAME ": "
2418 "%s: Unable to allocate SKB onto RBD ring - disabling "
2419 "adapter.\n", priv->net_dev->name);
2420 /* TODO: schedule adapter shutdown */
2421 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2422 }
2423
2424 /* Update the RDB entry */
2425 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2426}
2427
2428static inline int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2429{
2430 struct ipw2100_status *status = &priv->status_queue.drv[i];
2431 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2432 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2433
2434 switch (frame_type) {
2435 case COMMAND_STATUS_VAL:
2436 return (status->frame_size != sizeof(u->rx_data.command));
2437 case STATUS_CHANGE_VAL:
2438 return (status->frame_size != sizeof(u->rx_data.status));
2439 case HOST_NOTIFICATION_VAL:
2440 return (status->frame_size < sizeof(u->rx_data.notification));
2441 case P80211_DATA_VAL:
2442 case P8023_DATA_VAL:
2443#ifdef CONFIG_IPW2100_MONITOR
2444 return 0;
2445#else
2446 switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2447 case IEEE80211_FTYPE_MGMT:
2448 case IEEE80211_FTYPE_CTL:
2449 return 0;
2450 case IEEE80211_FTYPE_DATA:
2451 return (status->frame_size >
2452 IPW_MAX_802_11_PAYLOAD_LENGTH);
2453 }
2454#endif
2455 }
2456
2457 return 1;
2458}
2459
2460/*
2461 * ipw2100 interrupts are disabled at this point, and the ISR
2462 * is the only code that calls this method. So, we do not need
2463 * to play with any locks.
2464 *
2465 * RX Queue works as follows:
2466 *
2467 * Read index - firmware places packet in entry identified by the
2468 * Read index and advances Read index. In this manner,
2469 * Read index will always point to the next packet to
2470 * be filled--but not yet valid.
2471 *
2472 * Write index - driver fills this entry with an unused RBD entry.
2473 * This entry has not filled by the firmware yet.
2474 *
2475 * In between the W and R indexes are the RBDs that have been received
2476 * but not yet processed.
2477 *
2478 * The process of handling packets will start at WRITE + 1 and advance
2479 * until it reaches the READ index.
2480 *
2481 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2482 *
2483 */
2484static inline void __ipw2100_rx_process(struct ipw2100_priv *priv)
2485{
2486 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2487 struct ipw2100_status_queue *sq = &priv->status_queue;
2488 struct ipw2100_rx_packet *packet;
2489 u16 frame_type;
2490 u32 r, w, i, s;
2491 struct ipw2100_rx *u;
2492 struct ieee80211_rx_stats stats = {
2493 .mac_time = jiffies,
2494 };
2495
2496 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2497 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2498
2499 if (r >= rxq->entries) {
2500 IPW_DEBUG_RX("exit - bad read index\n");
2501 return;
2502 }
2503
2504 i = (rxq->next + 1) % rxq->entries;
2505 s = i;
2506 while (i != r) {
2507 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2508 r, rxq->next, i); */
2509
2510 packet = &priv->rx_buffers[i];
2511
2512 /* Sync the DMA for the STATUS buffer so CPU is sure to get
2513 * the correct values */
2514 pci_dma_sync_single_for_cpu(priv->pci_dev,
2515 sq->nic +
2516 sizeof(struct ipw2100_status) * i,
2517 sizeof(struct ipw2100_status),
2518 PCI_DMA_FROMDEVICE);
2519
2520 /* Sync the DMA for the RX buffer so CPU is sure to get
2521 * the correct values */
2522 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2523 sizeof(struct ipw2100_rx),
2524 PCI_DMA_FROMDEVICE);
2525
2526 if (unlikely(ipw2100_corruption_check(priv, i))) {
2527 ipw2100_corruption_detected(priv, i);
2528 goto increment;
2529 }
2530
2531 u = packet->rxp;
2532 frame_type = sq->drv[i].status_fields & STATUS_TYPE_MASK;
2533 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2534 stats.len = sq->drv[i].frame_size;
2535
2536 stats.mask = 0;
2537 if (stats.rssi != 0)
2538 stats.mask |= IEEE80211_STATMASK_RSSI;
2539 stats.freq = IEEE80211_24GHZ_BAND;
2540
2541 IPW_DEBUG_RX("%s: '%s' frame type received (%d).\n",
2542 priv->net_dev->name, frame_types[frame_type],
2543 stats.len);
2544
2545 switch (frame_type) {
2546 case COMMAND_STATUS_VAL:
2547 /* Reset Rx watchdog */
2548 isr_rx_complete_command(priv, &u->rx_data.command);
2549 break;
2550
2551 case STATUS_CHANGE_VAL:
2552 isr_status_change(priv, u->rx_data.status);
2553 break;
2554
2555 case P80211_DATA_VAL:
2556 case P8023_DATA_VAL:
2557#ifdef CONFIG_IPW2100_MONITOR
2558 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2559 isr_rx(priv, i, &stats);
2560 break;
2561 }
2562#endif
2563 if (stats.len < sizeof(u->rx_data.header))
2564 break;
2565 switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2566 case IEEE80211_FTYPE_MGMT:
2567 ieee80211_rx_mgt(priv->ieee,
2568 &u->rx_data.header, &stats);
2569 break;
2570
2571 case IEEE80211_FTYPE_CTL:
2572 break;
2573
2574 case IEEE80211_FTYPE_DATA:
2575 isr_rx(priv, i, &stats);
2576 break;
2577
2578 }
2579 break;
2580 }
2581
2582 increment:
2583 /* clear status field associated with this RBD */
2584 rxq->drv[i].status.info.field = 0;
2585
2586 i = (i + 1) % rxq->entries;
2587 }
2588
2589 if (i != s) {
2590 /* backtrack one entry, wrapping to end if at 0 */
2591 rxq->next = (i ? i : rxq->entries) - 1;
2592
2593 write_register(priv->net_dev,
2594 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, rxq->next);
2595 }
2596}
2597
2598/*
2599 * __ipw2100_tx_process
2600 *
2601 * This routine will determine whether the next packet on
2602 * the fw_pend_list has been processed by the firmware yet.
2603 *
2604 * If not, then it does nothing and returns.
2605 *
2606 * If so, then it removes the item from the fw_pend_list, frees
2607 * any associated storage, and places the item back on the
2608 * free list of its source (either msg_free_list or tx_free_list)
2609 *
2610 * TX Queue works as follows:
2611 *
2612 * Read index - points to the next TBD that the firmware will
2613 * process. The firmware will read the data, and once
2614 * done processing, it will advance the Read index.
2615 *
2616 * Write index - driver fills this entry with an constructed TBD
2617 * entry. The Write index is not advanced until the
2618 * packet has been configured.
2619 *
2620 * In between the W and R indexes are the TBDs that have NOT been
2621 * processed. Lagging behind the R index are packets that have
2622 * been processed but have not been freed by the driver.
2623 *
2624 * In order to free old storage, an internal index will be maintained
2625 * that points to the next packet to be freed. When all used
2626 * packets have been freed, the oldest index will be the same as the
2627 * firmware's read index.
2628 *
2629 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2630 *
2631 * Because the TBD structure can not contain arbitrary data, the
2632 * driver must keep an internal queue of cached allocations such that
2633 * it can put that data back into the tx_free_list and msg_free_list
2634 * for use by future command and data packets.
2635 *
2636 */
2637static inline int __ipw2100_tx_process(struct ipw2100_priv *priv)
2638{
2639 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2640 struct ipw2100_bd *tbd;
2641 struct list_head *element;
2642 struct ipw2100_tx_packet *packet;
2643 int descriptors_used;
2644 int e, i;
2645 u32 r, w, frag_num = 0;
2646
2647 if (list_empty(&priv->fw_pend_list))
2648 return 0;
2649
2650 element = priv->fw_pend_list.next;
2651
2652 packet = list_entry(element, struct ipw2100_tx_packet, list);
2653 tbd = &txq->drv[packet->index];
2654
2655 /* Determine how many TBD entries must be finished... */
2656 switch (packet->type) {
2657 case COMMAND:
2658 /* COMMAND uses only one slot; don't advance */
2659 descriptors_used = 1;
2660 e = txq->oldest;
2661 break;
2662
2663 case DATA:
2664 /* DATA uses two slots; advance and loop position. */
2665 descriptors_used = tbd->num_fragments;
2666 frag_num = tbd->num_fragments - 1;
2667 e = txq->oldest + frag_num;
2668 e %= txq->entries;
2669 break;
2670
2671 default:
2672 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2673 priv->net_dev->name);
2674 return 0;
2675 }
2676
2677 /* if the last TBD is not done by NIC yet, then packet is
2678 * not ready to be released.
2679 *
2680 */
2681 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2682 &r);
2683 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2684 &w);
2685 if (w != txq->next)
2686 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2687 priv->net_dev->name);
2688
2689 /*
2690 * txq->next is the index of the last packet written txq->oldest is
2691 * the index of the r is the index of the next packet to be read by
2692 * firmware
2693 */
2694
2695 /*
2696 * Quick graphic to help you visualize the following
2697 * if / else statement
2698 *
2699 * ===>| s---->|===============
2700 * e>|
2701 * | a | b | c | d | e | f | g | h | i | j | k | l
2702 * r---->|
2703 * w
2704 *
2705 * w - updated by driver
2706 * r - updated by firmware
2707 * s - start of oldest BD entry (txq->oldest)
2708 * e - end of oldest BD entry
2709 *
2710 */
2711 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2712 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2713 return 0;
2714 }
2715
2716 list_del(element);
2717 DEC_STAT(&priv->fw_pend_stat);
2718
2719#ifdef CONFIG_IPW_DEBUG
2720 {
2721 int i = txq->oldest;
2722 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2723 &txq->drv[i],
2724 (u32) (txq->nic + i * sizeof(struct ipw2100_bd)),
2725 txq->drv[i].host_addr, txq->drv[i].buf_length);
2726
2727 if (packet->type == DATA) {
2728 i = (i + 1) % txq->entries;
2729
2730 IPW_DEBUG_TX("TX%d V=%p P=%04X T=%04X L=%d\n", i,
2731 &txq->drv[i],
2732 (u32) (txq->nic + i *
2733 sizeof(struct ipw2100_bd)),
2734 (u32) txq->drv[i].host_addr,
2735 txq->drv[i].buf_length);
2736 }
2737 }
2738#endif
2739
2740 switch (packet->type) {
2741 case DATA:
2742 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2743 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2744 "Expecting DATA TBD but pulled "
2745 "something else: ids %d=%d.\n",
2746 priv->net_dev->name, txq->oldest, packet->index);
2747
2748 /* DATA packet; we have to unmap and free the SKB */
2749 for (i = 0; i < frag_num; i++) {
2750 tbd = &txq->drv[(packet->index + 1 + i) % txq->entries];
2751
2752 IPW_DEBUG_TX("TX%d P=%08x L=%d\n",
2753 (packet->index + 1 + i) % txq->entries,
2754 tbd->host_addr, tbd->buf_length);
2755
2756 pci_unmap_single(priv->pci_dev,
2757 tbd->host_addr,
2758 tbd->buf_length, PCI_DMA_TODEVICE);
2759 }
2760
2761 ieee80211_txb_free(packet->info.d_struct.txb);
2762 packet->info.d_struct.txb = NULL;
2763
2764 list_add_tail(element, &priv->tx_free_list);
2765 INC_STAT(&priv->tx_free_stat);
2766
2767 /* We have a free slot in the Tx queue, so wake up the
2768 * transmit layer if it is stopped. */
2769 if (priv->status & STATUS_ASSOCIATED)
2770 netif_wake_queue(priv->net_dev);
2771
2772 /* A packet was processed by the hardware, so update the
2773 * watchdog */
2774 priv->net_dev->trans_start = jiffies;
2775
2776 break;
2777
2778 case COMMAND:
2779 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2780 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2781 "Expecting COMMAND TBD but pulled "
2782 "something else: ids %d=%d.\n",
2783 priv->net_dev->name, txq->oldest, packet->index);
2784
2785#ifdef CONFIG_IPW_DEBUG
2786 if (packet->info.c_struct.cmd->host_command_reg <
2787 sizeof(command_types) / sizeof(*command_types))
2788 IPW_DEBUG_TX("Command '%s (%d)' processed: %d.\n",
2789 command_types[packet->info.c_struct.cmd->
2790 host_command_reg],
2791 packet->info.c_struct.cmd->
2792 host_command_reg,
2793 packet->info.c_struct.cmd->cmd_status_reg);
2794#endif
2795
2796 list_add_tail(element, &priv->msg_free_list);
2797 INC_STAT(&priv->msg_free_stat);
2798 break;
2799 }
2800
2801 /* advance oldest used TBD pointer to start of next entry */
2802 txq->oldest = (e + 1) % txq->entries;
2803 /* increase available TBDs number */
2804 txq->available += descriptors_used;
2805 SET_STAT(&priv->txq_stat, txq->available);
2806
2807 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2808 jiffies - packet->jiffy_start);
2809
2810 return (!list_empty(&priv->fw_pend_list));
2811}
2812
2813static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2814{
2815 int i = 0;
2816
2817 while (__ipw2100_tx_process(priv) && i < 200)
2818 i++;
2819
2820 if (i == 200) {
2821 printk(KERN_WARNING DRV_NAME ": "
2822 "%s: Driver is running slow (%d iters).\n",
2823 priv->net_dev->name, i);
2824 }
2825}
2826
2827static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2828{
2829 struct list_head *element;
2830 struct ipw2100_tx_packet *packet;
2831 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2832 struct ipw2100_bd *tbd;
2833 int next = txq->next;
2834
2835 while (!list_empty(&priv->msg_pend_list)) {
2836 /* if there isn't enough space in TBD queue, then
2837 * don't stuff a new one in.
2838 * NOTE: 3 are needed as a command will take one,
2839 * and there is a minimum of 2 that must be
2840 * maintained between the r and w indexes
2841 */
2842 if (txq->available <= 3) {
2843 IPW_DEBUG_TX("no room in tx_queue\n");
2844 break;
2845 }
2846
2847 element = priv->msg_pend_list.next;
2848 list_del(element);
2849 DEC_STAT(&priv->msg_pend_stat);
2850
2851 packet = list_entry(element, struct ipw2100_tx_packet, list);
2852
2853 IPW_DEBUG_TX("using TBD at virt=%p, phys=%p\n",
2854 &txq->drv[txq->next],
2855 (void *)(txq->nic + txq->next *
2856 sizeof(struct ipw2100_bd)));
2857
2858 packet->index = txq->next;
2859
2860 tbd = &txq->drv[txq->next];
2861
2862 /* initialize TBD */
2863 tbd->host_addr = packet->info.c_struct.cmd_phys;
2864 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
2865 /* not marking number of fragments causes problems
2866 * with f/w debug version */
2867 tbd->num_fragments = 1;
2868 tbd->status.info.field =
2869 IPW_BD_STATUS_TX_FRAME_COMMAND |
2870 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
2871
2872 /* update TBD queue counters */
2873 txq->next++;
2874 txq->next %= txq->entries;
2875 txq->available--;
2876 DEC_STAT(&priv->txq_stat);
2877
2878 list_add_tail(element, &priv->fw_pend_list);
2879 INC_STAT(&priv->fw_pend_stat);
2880 }
2881
2882 if (txq->next != next) {
2883 /* kick off the DMA by notifying firmware the
2884 * write index has moved; make sure TBD stores are sync'd */
2885 wmb();
2886 write_register(priv->net_dev,
2887 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2888 txq->next);
2889 }
2890}
2891
2892/*
2893 * ipw2100_tx_send_data
2894 *
2895 */
2896static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
2897{
2898 struct list_head *element;
2899 struct ipw2100_tx_packet *packet;
2900 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2901 struct ipw2100_bd *tbd;
2902 int next = txq->next;
2903 int i = 0;
2904 struct ipw2100_data_header *ipw_hdr;
2905 struct ieee80211_hdr_3addr *hdr;
2906
2907 while (!list_empty(&priv->tx_pend_list)) {
2908 /* if there isn't enough space in TBD queue, then
2909 * don't stuff a new one in.
2910 * NOTE: 4 are needed as a data will take two,
2911 * and there is a minimum of 2 that must be
2912 * maintained between the r and w indexes
2913 */
2914 element = priv->tx_pend_list.next;
2915 packet = list_entry(element, struct ipw2100_tx_packet, list);
2916
2917 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
2918 IPW_MAX_BDS)) {
2919 /* TODO: Support merging buffers if more than
2920 * IPW_MAX_BDS are used */
2921 IPW_DEBUG_INFO("%s: Maximum BD theshold exceeded. "
2922 "Increase fragmentation level.\n",
2923 priv->net_dev->name);
2924 }
2925
2926 if (txq->available <= 3 + packet->info.d_struct.txb->nr_frags) {
2927 IPW_DEBUG_TX("no room in tx_queue\n");
2928 break;
2929 }
2930
2931 list_del(element);
2932 DEC_STAT(&priv->tx_pend_stat);
2933
2934 tbd = &txq->drv[txq->next];
2935
2936 packet->index = txq->next;
2937
2938 ipw_hdr = packet->info.d_struct.data;
2939 hdr = (struct ieee80211_hdr_3addr *)packet->info.d_struct.txb->
2940 fragments[0]->data;
2941
2942 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
2943 /* To DS: Addr1 = BSSID, Addr2 = SA,
2944 Addr3 = DA */
2945 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
2946 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
2947 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
2948 /* not From/To DS: Addr1 = DA, Addr2 = SA,
2949 Addr3 = BSSID */
2950 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
2951 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
2952 }
2953
2954 ipw_hdr->host_command_reg = SEND;
2955 ipw_hdr->host_command_reg1 = 0;
2956
2957 /* For now we only support host based encryption */
2958 ipw_hdr->needs_encryption = 0;
2959 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
2960 if (packet->info.d_struct.txb->nr_frags > 1)
2961 ipw_hdr->fragment_size =
2962 packet->info.d_struct.txb->frag_size -
2963 IEEE80211_3ADDR_LEN;
2964 else
2965 ipw_hdr->fragment_size = 0;
2966
2967 tbd->host_addr = packet->info.d_struct.data_phys;
2968 tbd->buf_length = sizeof(struct ipw2100_data_header);
2969 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
2970 tbd->status.info.field =
2971 IPW_BD_STATUS_TX_FRAME_802_3 |
2972 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
2973 txq->next++;
2974 txq->next %= txq->entries;
2975
2976 IPW_DEBUG_TX("data header tbd TX%d P=%08x L=%d\n",
2977 packet->index, tbd->host_addr, tbd->buf_length);
2978#ifdef CONFIG_IPW_DEBUG
2979 if (packet->info.d_struct.txb->nr_frags > 1)
2980 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
2981 packet->info.d_struct.txb->nr_frags);
2982#endif
2983
2984 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
2985 tbd = &txq->drv[txq->next];
2986 if (i == packet->info.d_struct.txb->nr_frags - 1)
2987 tbd->status.info.field =
2988 IPW_BD_STATUS_TX_FRAME_802_3 |
2989 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
2990 else
2991 tbd->status.info.field =
2992 IPW_BD_STATUS_TX_FRAME_802_3 |
2993 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
2994
2995 tbd->buf_length = packet->info.d_struct.txb->
2996 fragments[i]->len - IEEE80211_3ADDR_LEN;
2997
2998 tbd->host_addr = pci_map_single(priv->pci_dev,
2999 packet->info.d_struct.
3000 txb->fragments[i]->
3001 data +
3002 IEEE80211_3ADDR_LEN,
3003 tbd->buf_length,
3004 PCI_DMA_TODEVICE);
3005
3006 IPW_DEBUG_TX("data frag tbd TX%d P=%08x L=%d\n",
3007 txq->next, tbd->host_addr,
3008 tbd->buf_length);
3009
3010 pci_dma_sync_single_for_device(priv->pci_dev,
3011 tbd->host_addr,
3012 tbd->buf_length,
3013 PCI_DMA_TODEVICE);
3014
3015 txq->next++;
3016 txq->next %= txq->entries;
3017 }
3018
3019 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3020 SET_STAT(&priv->txq_stat, txq->available);
3021
3022 list_add_tail(element, &priv->fw_pend_list);
3023 INC_STAT(&priv->fw_pend_stat);
3024 }
3025
3026 if (txq->next != next) {
3027 /* kick off the DMA by notifying firmware the
3028 * write index has moved; make sure TBD stores are sync'd */
3029 write_register(priv->net_dev,
3030 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3031 txq->next);
3032 }
3033 return;
3034}
3035
3036static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
3037{
3038 struct net_device *dev = priv->net_dev;
3039 unsigned long flags;
3040 u32 inta, tmp;
3041
3042 spin_lock_irqsave(&priv->low_lock, flags);
3043 ipw2100_disable_interrupts(priv);
3044
3045 read_register(dev, IPW_REG_INTA, &inta);
3046
3047 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3048 (unsigned long)inta & IPW_INTERRUPT_MASK);
3049
3050 priv->in_isr++;
3051 priv->interrupts++;
3052
3053 /* We do not loop and keep polling for more interrupts as this
3054 * is frowned upon and doesn't play nicely with other potentially
3055 * chained IRQs */
3056 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3057 (unsigned long)inta & IPW_INTERRUPT_MASK);
3058
3059 if (inta & IPW2100_INTA_FATAL_ERROR) {
3060 printk(KERN_WARNING DRV_NAME
3061 ": Fatal interrupt. Scheduling firmware restart.\n");
3062 priv->inta_other++;
3063 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FATAL_ERROR);
3064
3065 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3066 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3067 priv->net_dev->name, priv->fatal_error);
3068
3069 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3070 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3071 priv->net_dev->name, tmp);
3072
3073 /* Wake up any sleeping jobs */
3074 schedule_reset(priv);
3075 }
3076
3077 if (inta & IPW2100_INTA_PARITY_ERROR) {
3078 printk(KERN_ERR DRV_NAME
3079 ": ***** PARITY ERROR INTERRUPT !!!! \n");
3080 priv->inta_other++;
3081 write_register(dev, IPW_REG_INTA, IPW2100_INTA_PARITY_ERROR);
3082 }
3083
3084 if (inta & IPW2100_INTA_RX_TRANSFER) {
3085 IPW_DEBUG_ISR("RX interrupt\n");
3086
3087 priv->rx_interrupts++;
3088
3089 write_register(dev, IPW_REG_INTA, IPW2100_INTA_RX_TRANSFER);
3090
3091 __ipw2100_rx_process(priv);
3092 __ipw2100_tx_complete(priv);
3093 }
3094
3095 if (inta & IPW2100_INTA_TX_TRANSFER) {
3096 IPW_DEBUG_ISR("TX interrupt\n");
3097
3098 priv->tx_interrupts++;
3099
3100 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_TRANSFER);
3101
3102 __ipw2100_tx_complete(priv);
3103 ipw2100_tx_send_commands(priv);
3104 ipw2100_tx_send_data(priv);
3105 }
3106
3107 if (inta & IPW2100_INTA_TX_COMPLETE) {
3108 IPW_DEBUG_ISR("TX complete\n");
3109 priv->inta_other++;
3110 write_register(dev, IPW_REG_INTA, IPW2100_INTA_TX_COMPLETE);
3111
3112 __ipw2100_tx_complete(priv);
3113 }
3114
3115 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3116 /* ipw2100_handle_event(dev); */
3117 priv->inta_other++;
3118 write_register(dev, IPW_REG_INTA, IPW2100_INTA_EVENT_INTERRUPT);
3119 }
3120
3121 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3122 IPW_DEBUG_ISR("FW init done interrupt\n");
3123 priv->inta_other++;
3124
3125 read_register(dev, IPW_REG_INTA, &tmp);
3126 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3127 IPW2100_INTA_PARITY_ERROR)) {
3128 write_register(dev, IPW_REG_INTA,
3129 IPW2100_INTA_FATAL_ERROR |
3130 IPW2100_INTA_PARITY_ERROR);
3131 }
3132
3133 write_register(dev, IPW_REG_INTA, IPW2100_INTA_FW_INIT_DONE);
3134 }
3135
3136 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3137 IPW_DEBUG_ISR("Status change interrupt\n");
3138 priv->inta_other++;
3139 write_register(dev, IPW_REG_INTA, IPW2100_INTA_STATUS_CHANGE);
3140 }
3141
3142 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3143 IPW_DEBUG_ISR("slave host mode interrupt\n");
3144 priv->inta_other++;
3145 write_register(dev, IPW_REG_INTA,
3146 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3147 }
3148
3149 priv->in_isr--;
3150 ipw2100_enable_interrupts(priv);
3151
3152 spin_unlock_irqrestore(&priv->low_lock, flags);
3153
3154 IPW_DEBUG_ISR("exit\n");
3155}
3156
3157static irqreturn_t ipw2100_interrupt(int irq, void *data, struct pt_regs *regs)
3158{
3159 struct ipw2100_priv *priv = data;
3160 u32 inta, inta_mask;
3161
3162 if (!data)
3163 return IRQ_NONE;
3164
3165 spin_lock(&priv->low_lock);
3166
3167 /* We check to see if we should be ignoring interrupts before
3168 * we touch the hardware. During ucode load if we try and handle
3169 * an interrupt we can cause keyboard problems as well as cause
3170 * the ucode to fail to initialize */
3171 if (!(priv->status & STATUS_INT_ENABLED)) {
3172 /* Shared IRQ */
3173 goto none;
3174 }
3175
3176 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3177 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3178
3179 if (inta == 0xFFFFFFFF) {
3180 /* Hardware disappeared */
3181 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3182 goto none;
3183 }
3184
3185 inta &= IPW_INTERRUPT_MASK;
3186
3187 if (!(inta & inta_mask)) {
3188 /* Shared interrupt */
3189 goto none;
3190 }
3191
3192 /* We disable the hardware interrupt here just to prevent unneeded
3193 * calls to be made. We disable this again within the actual
3194 * work tasklet, so if another part of the code re-enables the
3195 * interrupt, that is fine */
3196 ipw2100_disable_interrupts(priv);
3197
3198 tasklet_schedule(&priv->irq_tasklet);
3199 spin_unlock(&priv->low_lock);
3200
3201 return IRQ_HANDLED;
3202 none:
3203 spin_unlock(&priv->low_lock);
3204 return IRQ_NONE;
3205}
3206
3207static int ipw2100_tx(struct ieee80211_txb *txb, struct net_device *dev,
3208 int pri)
3209{
3210 struct ipw2100_priv *priv = ieee80211_priv(dev);
3211 struct list_head *element;
3212 struct ipw2100_tx_packet *packet;
3213 unsigned long flags;
3214
3215 spin_lock_irqsave(&priv->low_lock, flags);
3216
3217 if (!(priv->status & STATUS_ASSOCIATED)) {
3218 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3219 priv->ieee->stats.tx_carrier_errors++;
3220 netif_stop_queue(dev);
3221 goto fail_unlock;
3222 }
3223
3224 if (list_empty(&priv->tx_free_list))
3225 goto fail_unlock;
3226
3227 element = priv->tx_free_list.next;
3228 packet = list_entry(element, struct ipw2100_tx_packet, list);
3229
3230 packet->info.d_struct.txb = txb;
3231
3232 IPW_DEBUG_TX("Sending fragment (%d bytes):\n", txb->fragments[0]->len);
3233 printk_buf(IPW_DL_TX, txb->fragments[0]->data, txb->fragments[0]->len);
3234
3235 packet->jiffy_start = jiffies;
3236
3237 list_del(element);
3238 DEC_STAT(&priv->tx_free_stat);
3239
3240 list_add_tail(element, &priv->tx_pend_list);
3241 INC_STAT(&priv->tx_pend_stat);
3242
3243 ipw2100_tx_send_data(priv);
3244
3245 spin_unlock_irqrestore(&priv->low_lock, flags);
3246 return 0;
3247
3248 fail_unlock:
3249 netif_stop_queue(dev);
3250 spin_unlock_irqrestore(&priv->low_lock, flags);
3251 return 1;
3252}
3253
3254static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3255{
3256 int i, j, err = -EINVAL;
3257 void *v;
3258 dma_addr_t p;
3259
3260 priv->msg_buffers =
3261 (struct ipw2100_tx_packet *)kmalloc(IPW_COMMAND_POOL_SIZE *
3262 sizeof(struct
3263 ipw2100_tx_packet),
3264 GFP_KERNEL);
3265 if (!priv->msg_buffers) {
3266 printk(KERN_ERR DRV_NAME ": %s: PCI alloc failed for msg "
3267 "buffers.\n", priv->net_dev->name);
3268 return -ENOMEM;
3269 }
3270
3271 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3272 v = pci_alloc_consistent(priv->pci_dev,
3273 sizeof(struct ipw2100_cmd_header), &p);
3274 if (!v) {
3275 printk(KERN_ERR DRV_NAME ": "
3276 "%s: PCI alloc failed for msg "
3277 "buffers.\n", priv->net_dev->name);
3278 err = -ENOMEM;
3279 break;
3280 }
3281
3282 memset(v, 0, sizeof(struct ipw2100_cmd_header));
3283
3284 priv->msg_buffers[i].type = COMMAND;
3285 priv->msg_buffers[i].info.c_struct.cmd =
3286 (struct ipw2100_cmd_header *)v;
3287 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3288 }
3289
3290 if (i == IPW_COMMAND_POOL_SIZE)
3291 return 0;
3292
3293 for (j = 0; j < i; j++) {
3294 pci_free_consistent(priv->pci_dev,
3295 sizeof(struct ipw2100_cmd_header),
3296 priv->msg_buffers[j].info.c_struct.cmd,
3297 priv->msg_buffers[j].info.c_struct.
3298 cmd_phys);
3299 }
3300
3301 kfree(priv->msg_buffers);
3302 priv->msg_buffers = NULL;
3303
3304 return err;
3305}
3306
3307static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3308{
3309 int i;
3310
3311 INIT_LIST_HEAD(&priv->msg_free_list);
3312 INIT_LIST_HEAD(&priv->msg_pend_list);
3313
3314 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3315 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3316 SET_STAT(&priv->msg_free_stat, i);
3317
3318 return 0;
3319}
3320
3321static void ipw2100_msg_free(struct ipw2100_priv *priv)
3322{
3323 int i;
3324
3325 if (!priv->msg_buffers)
3326 return;
3327
3328 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3329 pci_free_consistent(priv->pci_dev,
3330 sizeof(struct ipw2100_cmd_header),
3331 priv->msg_buffers[i].info.c_struct.cmd,
3332 priv->msg_buffers[i].info.c_struct.
3333 cmd_phys);
3334 }
3335
3336 kfree(priv->msg_buffers);
3337 priv->msg_buffers = NULL;
3338}
3339
3340static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3341 char *buf)
3342{
3343 struct pci_dev *pci_dev = container_of(d, struct pci_dev, dev);
3344 char *out = buf;
3345 int i, j;
3346 u32 val;
3347
3348 for (i = 0; i < 16; i++) {
3349 out += sprintf(out, "[%08X] ", i * 16);
3350 for (j = 0; j < 16; j += 4) {
3351 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3352 out += sprintf(out, "%08X ", val);
3353 }
3354 out += sprintf(out, "\n");
3355 }
3356
3357 return out - buf;
3358}
3359
3360static DEVICE_ATTR(pci, S_IRUGO, show_pci, NULL);
3361
3362static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3363 char *buf)
3364{
3365 struct ipw2100_priv *p = d->driver_data;
3366 return sprintf(buf, "0x%08x\n", (int)p->config);
3367}
3368
3369static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
3370
3371static ssize_t show_status(struct device *d, struct device_attribute *attr,
3372 char *buf)
3373{
3374 struct ipw2100_priv *p = d->driver_data;
3375 return sprintf(buf, "0x%08x\n", (int)p->status);
3376}
3377
3378static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
3379
3380static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3381 char *buf)
3382{
3383 struct ipw2100_priv *p = d->driver_data;
3384 return sprintf(buf, "0x%08x\n", (int)p->capability);
3385}
3386
3387static DEVICE_ATTR(capability, S_IRUGO, show_capability, NULL);
3388
3389#define IPW2100_REG(x) { IPW_ ##x, #x }
3390static const struct {
3391 u32 addr;
3392 const char *name;
3393} hw_data[] = {
3394IPW2100_REG(REG_GP_CNTRL),
3395 IPW2100_REG(REG_GPIO),
3396 IPW2100_REG(REG_INTA),
3397 IPW2100_REG(REG_INTA_MASK), IPW2100_REG(REG_RESET_REG),};
3398#define IPW2100_NIC(x, s) { x, #x, s }
3399static const struct {
3400 u32 addr;
3401 const char *name;
3402 size_t size;
3403} nic_data[] = {
3404IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3405 IPW2100_NIC(0x210014, 1), IPW2100_NIC(0x210000, 1),};
3406#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3407static const struct {
3408 u8 index;
3409 const char *name;
3410 const char *desc;
3411} ord_data[] = {
3412IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3413 IPW2100_ORD(STAT_TX_HOST_COMPLETE,
3414 "successful Host Tx's (MSDU)"),
3415 IPW2100_ORD(STAT_TX_DIR_DATA,
3416 "successful Directed Tx's (MSDU)"),
3417 IPW2100_ORD(STAT_TX_DIR_DATA1,
3418 "successful Directed Tx's (MSDU) @ 1MB"),
3419 IPW2100_ORD(STAT_TX_DIR_DATA2,
3420 "successful Directed Tx's (MSDU) @ 2MB"),
3421 IPW2100_ORD(STAT_TX_DIR_DATA5_5,
3422 "successful Directed Tx's (MSDU) @ 5_5MB"),
3423 IPW2100_ORD(STAT_TX_DIR_DATA11,
3424 "successful Directed Tx's (MSDU) @ 11MB"),
3425 IPW2100_ORD(STAT_TX_NODIR_DATA1,
3426 "successful Non_Directed Tx's (MSDU) @ 1MB"),
3427 IPW2100_ORD(STAT_TX_NODIR_DATA2,
3428 "successful Non_Directed Tx's (MSDU) @ 2MB"),
3429 IPW2100_ORD(STAT_TX_NODIR_DATA5_5,
3430 "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3431 IPW2100_ORD(STAT_TX_NODIR_DATA11,
3432 "successful Non_Directed Tx's (MSDU) @ 11MB"),
3433 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3434 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3435 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3436 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3437 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3438 IPW2100_ORD(STAT_TX_ASSN_RESP,
3439 "successful Association response Tx's"),
3440 IPW2100_ORD(STAT_TX_REASSN,
3441 "successful Reassociation Tx's"),
3442 IPW2100_ORD(STAT_TX_REASSN_RESP,
3443 "successful Reassociation response Tx's"),
3444 IPW2100_ORD(STAT_TX_PROBE,
3445 "probes successfully transmitted"),
3446 IPW2100_ORD(STAT_TX_PROBE_RESP,
3447 "probe responses successfully transmitted"),
3448 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3449 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3450 IPW2100_ORD(STAT_TX_DISASSN,
3451 "successful Disassociation TX"),
3452 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3453 IPW2100_ORD(STAT_TX_DEAUTH,
3454 "successful Deauthentication TX"),
3455 IPW2100_ORD(STAT_TX_TOTAL_BYTES,
3456 "Total successful Tx data bytes"),
3457 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3458 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3459 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3460 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3461 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3462 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3463 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,
3464 "times max tries in a hop failed"),
3465 IPW2100_ORD(STAT_TX_DISASSN_FAIL,
3466 "times disassociation failed"),
3467 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3468 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3469 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3470 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3471 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3472 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3473 IPW2100_ORD(STAT_RX_DIR_DATA5_5,
3474 "directed packets at 5.5MB"),
3475 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3476 IPW2100_ORD(STAT_RX_NODIR_DATA, "nondirected packets"),
3477 IPW2100_ORD(STAT_RX_NODIR_DATA1,
3478 "nondirected packets at 1MB"),
3479 IPW2100_ORD(STAT_RX_NODIR_DATA2,
3480 "nondirected packets at 2MB"),
3481 IPW2100_ORD(STAT_RX_NODIR_DATA5_5,
3482 "nondirected packets at 5.5MB"),
3483 IPW2100_ORD(STAT_RX_NODIR_DATA11,
3484 "nondirected packets at 11MB"),
3485 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3486 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"), IPW2100_ORD(STAT_RX_CTS,
3487 "Rx CTS"),
3488 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3489 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3490 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3491 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3492 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3493 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3494 IPW2100_ORD(STAT_RX_REASSN_RESP,
3495 "Reassociation response Rx's"),
3496 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3497 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3498 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3499 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3500 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3501 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3502 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3503 IPW2100_ORD(STAT_RX_TOTAL_BYTES,
3504 "Total rx data bytes received"),
3505 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3506 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3507 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3508 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3509 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3510 IPW2100_ORD(STAT_RX_DUPLICATE1,
3511 "duplicate rx packets at 1MB"),
3512 IPW2100_ORD(STAT_RX_DUPLICATE2,
3513 "duplicate rx packets at 2MB"),
3514 IPW2100_ORD(STAT_RX_DUPLICATE5_5,
3515 "duplicate rx packets at 5.5MB"),
3516 IPW2100_ORD(STAT_RX_DUPLICATE11,
3517 "duplicate rx packets at 11MB"),
3518 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3519 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3520 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3521 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3522 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL,
3523 "rx frames with invalid protocol"),
3524 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3525 IPW2100_ORD(STAT_RX_NO_BUFFER,
3526 "rx frames rejected due to no buffer"),
3527 IPW2100_ORD(STAT_RX_MISSING_FRAG,
3528 "rx frames dropped due to missing fragment"),
3529 IPW2100_ORD(STAT_RX_ORPHAN_FRAG,
3530 "rx frames dropped due to non-sequential fragment"),
3531 IPW2100_ORD(STAT_RX_ORPHAN_FRAME,
3532 "rx frames dropped due to unmatched 1st frame"),
3533 IPW2100_ORD(STAT_RX_FRAG_AGEOUT,
3534 "rx frames dropped due to uncompleted frame"),
3535 IPW2100_ORD(STAT_RX_ICV_ERRORS,
3536 "ICV errors during decryption"),
3537 IPW2100_ORD(STAT_PSP_SUSPENSION, "times adapter suspended"),
3538 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3539 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT,
3540 "poll response timeouts"),
3541 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT,
3542 "timeouts waiting for last {broad,multi}cast pkt"),
3543 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3544 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3545 IPW2100_ORD(STAT_PSP_STATION_ID, "PSP Station ID"),
3546 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3547 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,
3548 "current calculation of % missed beacons"),
3549 IPW2100_ORD(STAT_PERCENT_RETRIES,
3550 "current calculation of % missed tx retries"),
3551 IPW2100_ORD(ASSOCIATED_AP_PTR,
3552 "0 if not associated, else pointer to AP table entry"),
3553 IPW2100_ORD(AVAILABLE_AP_CNT,
3554 "AP's decsribed in the AP table"),
3555 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3556 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3557 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3558 IPW2100_ORD(STAT_ASSN_RESP_FAIL,
3559 "failures due to response fail"),
3560 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3561 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3562 IPW2100_ORD(STAT_ROAM_INHIBIT,
3563 "times roaming was inhibited due to activity"),
3564 IPW2100_ORD(RSSI_AT_ASSN,
3565 "RSSI of associated AP at time of association"),
3566 IPW2100_ORD(STAT_ASSN_CAUSE1,
3567 "reassociation: no probe response or TX on hop"),
3568 IPW2100_ORD(STAT_ASSN_CAUSE2,
3569 "reassociation: poor tx/rx quality"),
3570 IPW2100_ORD(STAT_ASSN_CAUSE3,
3571 "reassociation: tx/rx quality (excessive AP load"),
3572 IPW2100_ORD(STAT_ASSN_CAUSE4,
3573 "reassociation: AP RSSI level"),
3574 IPW2100_ORD(STAT_ASSN_CAUSE5,
3575 "reassociations due to load leveling"),
3576 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3577 IPW2100_ORD(STAT_AUTH_RESP_FAIL,
3578 "times authentication response failed"),
3579 IPW2100_ORD(STATION_TABLE_CNT,
3580 "entries in association table"),
3581 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3582 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3583 IPW2100_ORD(COUNTRY_CODE,
3584 "IEEE country code as recv'd from beacon"),
3585 IPW2100_ORD(COUNTRY_CHANNELS,
3586 "channels suported by country"),
3587 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3588 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3589 IPW2100_ORD(ANTENNA_DIVERSITY,
3590 "TRUE if antenna diversity is disabled"),
3591 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3592 IPW2100_ORD(OUR_FREQ,
3593 "current radio freq lower digits - channel ID"),
3594 IPW2100_ORD(RTC_TIME, "current RTC time"),
3595 IPW2100_ORD(PORT_TYPE, "operating mode"),
3596 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3597 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3598 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3599 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3600 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3601 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3602 IPW2100_ORD(CAPABILITIES,
3603 "Management frame capability field"),
3604 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3605 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3606 IPW2100_ORD(RTS_THRESHOLD,
3607 "Min packet length for RTS handshaking"),
3608 IPW2100_ORD(INT_MODE, "International mode"),
3609 IPW2100_ORD(FRAGMENTATION_THRESHOLD,
3610 "protocol frag threshold"),
3611 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
3612 "EEPROM offset in SRAM"),
3613 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE,
3614 "EEPROM size in SRAM"),
3615 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3616 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS,
3617 "EEPROM IBSS 11b channel set"),
3618 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3619 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3620 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3621 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3622 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),};
3623
3624static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3625 char *buf)
3626{
3627 int i;
3628 struct ipw2100_priv *priv = dev_get_drvdata(d);
3629 struct net_device *dev = priv->net_dev;
3630 char *out = buf;
3631 u32 val = 0;
3632
3633 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3634
3635 for (i = 0; i < (sizeof(hw_data) / sizeof(*hw_data)); i++) {
3636 read_register(dev, hw_data[i].addr, &val);
3637 out += sprintf(out, "%30s [%08X] : %08X\n",
3638 hw_data[i].name, hw_data[i].addr, val);
3639 }
3640
3641 return out - buf;
3642}
3643
3644static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
3645
3646static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3647 char *buf)
3648{
3649 struct ipw2100_priv *priv = dev_get_drvdata(d);
3650 struct net_device *dev = priv->net_dev;
3651 char *out = buf;
3652 int i;
3653
3654 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3655
3656 for (i = 0; i < (sizeof(nic_data) / sizeof(*nic_data)); i++) {
3657 u8 tmp8;
3658 u16 tmp16;
3659 u32 tmp32;
3660
3661 switch (nic_data[i].size) {
3662 case 1:
3663 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3664 out += sprintf(out, "%30s [%08X] : %02X\n",
3665 nic_data[i].name, nic_data[i].addr,
3666 tmp8);
3667 break;
3668 case 2:
3669 read_nic_word(dev, nic_data[i].addr, &tmp16);
3670 out += sprintf(out, "%30s [%08X] : %04X\n",
3671 nic_data[i].name, nic_data[i].addr,
3672 tmp16);
3673 break;
3674 case 4:
3675 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3676 out += sprintf(out, "%30s [%08X] : %08X\n",
3677 nic_data[i].name, nic_data[i].addr,
3678 tmp32);
3679 break;
3680 }
3681 }
3682 return out - buf;
3683}
3684
3685static DEVICE_ATTR(hardware, S_IRUGO, show_hardware, NULL);
3686
3687static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3688 char *buf)
3689{
3690 struct ipw2100_priv *priv = dev_get_drvdata(d);
3691 struct net_device *dev = priv->net_dev;
3692 static unsigned long loop = 0;
3693 int len = 0;
3694 u32 buffer[4];
3695 int i;
3696 char line[81];
3697
3698 if (loop >= 0x30000)
3699 loop = 0;
3700
3701 /* sysfs provides us PAGE_SIZE buffer */
3702 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3703
3704 if (priv->snapshot[0])
3705 for (i = 0; i < 4; i++)
3706 buffer[i] =
3707 *(u32 *) SNAPSHOT_ADDR(loop + i * 4);
3708 else
3709 for (i = 0; i < 4; i++)
3710 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3711
3712 if (priv->dump_raw)
3713 len += sprintf(buf + len,
3714 "%c%c%c%c"
3715 "%c%c%c%c"
3716 "%c%c%c%c"
3717 "%c%c%c%c",
3718 ((u8 *) buffer)[0x0],
3719 ((u8 *) buffer)[0x1],
3720 ((u8 *) buffer)[0x2],
3721 ((u8 *) buffer)[0x3],
3722 ((u8 *) buffer)[0x4],
3723 ((u8 *) buffer)[0x5],
3724 ((u8 *) buffer)[0x6],
3725 ((u8 *) buffer)[0x7],
3726 ((u8 *) buffer)[0x8],
3727 ((u8 *) buffer)[0x9],
3728 ((u8 *) buffer)[0xa],
3729 ((u8 *) buffer)[0xb],
3730 ((u8 *) buffer)[0xc],
3731 ((u8 *) buffer)[0xd],
3732 ((u8 *) buffer)[0xe],
3733 ((u8 *) buffer)[0xf]);
3734 else
3735 len += sprintf(buf + len, "%s\n",
3736 snprint_line(line, sizeof(line),
3737 (u8 *) buffer, 16, loop));
3738 loop += 16;
3739 }
3740
3741 return len;
3742}
3743
3744static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3745 const char *buf, size_t count)
3746{
3747 struct ipw2100_priv *priv = dev_get_drvdata(d);
3748 struct net_device *dev = priv->net_dev;
3749 const char *p = buf;
3750
3751 if (count < 1)
3752 return count;
3753
3754 if (p[0] == '1' ||
3755 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3756 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3757 dev->name);
3758 priv->dump_raw = 1;
3759
3760 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3761 tolower(p[1]) == 'f')) {
3762 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3763 dev->name);
3764 priv->dump_raw = 0;
3765
3766 } else if (tolower(p[0]) == 'r') {
3767 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n", dev->name);
3768 ipw2100_snapshot_free(priv);
3769
3770 } else
3771 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3772 "reset = clear memory snapshot\n", dev->name);
3773
3774 return count;
3775}
3776
3777static DEVICE_ATTR(memory, S_IWUSR | S_IRUGO, show_memory, store_memory);
3778
3779static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3780 char *buf)
3781{
3782 struct ipw2100_priv *priv = dev_get_drvdata(d);
3783 u32 val = 0;
3784 int len = 0;
3785 u32 val_len;
3786 static int loop = 0;
3787
3788 if (priv->status & STATUS_RF_KILL_MASK)
3789 return 0;
3790
3791 if (loop >= sizeof(ord_data) / sizeof(*ord_data))
3792 loop = 0;
3793
3794 /* sysfs provides us PAGE_SIZE buffer */
3795 while (len < PAGE_SIZE - 128 &&
3796 loop < (sizeof(ord_data) / sizeof(*ord_data))) {
3797
3798 val_len = sizeof(u32);
3799
3800 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3801 &val_len))
3802 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3803 ord_data[loop].index,
3804 ord_data[loop].desc);
3805 else
3806 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3807 ord_data[loop].index, val,
3808 ord_data[loop].desc);
3809 loop++;
3810 }
3811
3812 return len;
3813}
3814
3815static DEVICE_ATTR(ordinals, S_IRUGO, show_ordinals, NULL);
3816
3817static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3818 char *buf)
3819{
3820 struct ipw2100_priv *priv = dev_get_drvdata(d);
3821 char *out = buf;
3822
3823 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3824 priv->interrupts, priv->tx_interrupts,
3825 priv->rx_interrupts, priv->inta_other);
3826 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3827 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3828#ifdef CONFIG_IPW_DEBUG
3829 out += sprintf(out, "packet mismatch image: %s\n",
3830 priv->snapshot[0] ? "YES" : "NO");
3831#endif
3832
3833 return out - buf;
3834}
3835
3836static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL);
3837
3838static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
3839{
3840 int err;
3841
3842 if (mode == priv->ieee->iw_mode)
3843 return 0;
3844
3845 err = ipw2100_disable_adapter(priv);
3846 if (err) {
3847 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
3848 priv->net_dev->name, err);
3849 return err;
3850 }
3851
3852 switch (mode) {
3853 case IW_MODE_INFRA:
3854 priv->net_dev->type = ARPHRD_ETHER;
3855 break;
3856 case IW_MODE_ADHOC:
3857 priv->net_dev->type = ARPHRD_ETHER;
3858 break;
3859#ifdef CONFIG_IPW2100_MONITOR
3860 case IW_MODE_MONITOR:
3861 priv->last_mode = priv->ieee->iw_mode;
3862 priv->net_dev->type = ARPHRD_IEEE80211;
3863 break;
3864#endif /* CONFIG_IPW2100_MONITOR */
3865 }
3866
3867 priv->ieee->iw_mode = mode;
3868
3869#ifdef CONFIG_PM
3870 /* Indicate ipw2100_download_firmware download firmware
3871 * from disk instead of memory. */
3872 ipw2100_firmware.version = 0;
3873#endif
3874
3875 printk(KERN_INFO "%s: Reseting on mode change.\n", priv->net_dev->name);
3876 priv->reset_backoff = 0;
3877 schedule_reset(priv);
3878
3879 return 0;
3880}
3881
3882static ssize_t show_internals(struct device *d, struct device_attribute *attr,
3883 char *buf)
3884{
3885 struct ipw2100_priv *priv = dev_get_drvdata(d);
3886 int len = 0;
3887
3888#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" y "\n", priv-> x)
3889
3890 if (priv->status & STATUS_ASSOCIATED)
3891 len += sprintf(buf + len, "connected: %lu\n",
3892 get_seconds() - priv->connect_start);
3893 else
3894 len += sprintf(buf + len, "not connected\n");
3895
3896 DUMP_VAR(ieee->crypt[priv->ieee->tx_keyidx], "p");
3897 DUMP_VAR(status, "08lx");
3898 DUMP_VAR(config, "08lx");
3899 DUMP_VAR(capability, "08lx");
3900
3901 len +=
3902 sprintf(buf + len, "last_rtc: %lu\n",
3903 (unsigned long)priv->last_rtc);
3904
3905 DUMP_VAR(fatal_error, "d");
3906 DUMP_VAR(stop_hang_check, "d");
3907 DUMP_VAR(stop_rf_kill, "d");
3908 DUMP_VAR(messages_sent, "d");
3909
3910 DUMP_VAR(tx_pend_stat.value, "d");
3911 DUMP_VAR(tx_pend_stat.hi, "d");
3912
3913 DUMP_VAR(tx_free_stat.value, "d");
3914 DUMP_VAR(tx_free_stat.lo, "d");
3915
3916 DUMP_VAR(msg_free_stat.value, "d");
3917 DUMP_VAR(msg_free_stat.lo, "d");
3918
3919 DUMP_VAR(msg_pend_stat.value, "d");
3920 DUMP_VAR(msg_pend_stat.hi, "d");
3921
3922 DUMP_VAR(fw_pend_stat.value, "d");
3923 DUMP_VAR(fw_pend_stat.hi, "d");
3924
3925 DUMP_VAR(txq_stat.value, "d");
3926 DUMP_VAR(txq_stat.lo, "d");
3927
3928 DUMP_VAR(ieee->scans, "d");
3929 DUMP_VAR(reset_backoff, "d");
3930
3931 return len;
3932}
3933
3934static DEVICE_ATTR(internals, S_IRUGO, show_internals, NULL);
3935
3936static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
3937 char *buf)
3938{
3939 struct ipw2100_priv *priv = dev_get_drvdata(d);
3940 char essid[IW_ESSID_MAX_SIZE + 1];
3941 u8 bssid[ETH_ALEN];
3942 u32 chan = 0;
3943 char *out = buf;
3944 int length;
3945 int ret;
3946
3947 if (priv->status & STATUS_RF_KILL_MASK)
3948 return 0;
3949
3950 memset(essid, 0, sizeof(essid));
3951 memset(bssid, 0, sizeof(bssid));
3952
3953 length = IW_ESSID_MAX_SIZE;
3954 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
3955 if (ret)
3956 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3957 __LINE__);
3958
3959 length = sizeof(bssid);
3960 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
3961 bssid, &length);
3962 if (ret)
3963 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3964 __LINE__);
3965
3966 length = sizeof(u32);
3967 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
3968 if (ret)
3969 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3970 __LINE__);
3971
3972 out += sprintf(out, "ESSID: %s\n", essid);
3973 out += sprintf(out, "BSSID: %02x:%02x:%02x:%02x:%02x:%02x\n",
3974 bssid[0], bssid[1], bssid[2],
3975 bssid[3], bssid[4], bssid[5]);
3976 out += sprintf(out, "Channel: %d\n", chan);
3977
3978 return out - buf;
3979}
3980
3981static DEVICE_ATTR(bssinfo, S_IRUGO, show_bssinfo, NULL);
3982
3983#ifdef CONFIG_IPW_DEBUG
3984static ssize_t show_debug_level(struct device_driver *d, char *buf)
3985{
3986 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
3987}
3988
3989static ssize_t store_debug_level(struct device_driver *d,
3990 const char *buf, size_t count)
3991{
3992 char *p = (char *)buf;
3993 u32 val;
3994
3995 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
3996 p++;
3997 if (p[0] == 'x' || p[0] == 'X')
3998 p++;
3999 val = simple_strtoul(p, &p, 16);
4000 } else
4001 val = simple_strtoul(p, &p, 10);
4002 if (p == buf)
4003 IPW_DEBUG_INFO(": %s is not in hex or decimal form.\n", buf);
4004 else
4005 ipw2100_debug_level = val;
4006
4007 return strnlen(buf, count);
4008}
4009
4010static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, show_debug_level,
4011 store_debug_level);
4012#endif /* CONFIG_IPW_DEBUG */
4013
4014static ssize_t show_fatal_error(struct device *d,
4015 struct device_attribute *attr, char *buf)
4016{
4017 struct ipw2100_priv *priv = dev_get_drvdata(d);
4018 char *out = buf;
4019 int i;
4020
4021 if (priv->fatal_error)
4022 out += sprintf(out, "0x%08X\n", priv->fatal_error);
4023 else
4024 out += sprintf(out, "0\n");
4025
4026 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4027 if (!priv->fatal_errors[(priv->fatal_index - i) %
4028 IPW2100_ERROR_QUEUE])
4029 continue;
4030
4031 out += sprintf(out, "%d. 0x%08X\n", i,
4032 priv->fatal_errors[(priv->fatal_index - i) %
4033 IPW2100_ERROR_QUEUE]);
4034 }
4035
4036 return out - buf;
4037}
4038
4039static ssize_t store_fatal_error(struct device *d,
4040 struct device_attribute *attr, const char *buf,
4041 size_t count)
4042{
4043 struct ipw2100_priv *priv = dev_get_drvdata(d);
4044 schedule_reset(priv);
4045 return count;
4046}
4047
4048static DEVICE_ATTR(fatal_error, S_IWUSR | S_IRUGO, show_fatal_error,
4049 store_fatal_error);
4050
4051static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4052 char *buf)
4053{
4054 struct ipw2100_priv *priv = dev_get_drvdata(d);
4055 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4056}
4057
4058static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4059 const char *buf, size_t count)
4060{
4061 struct ipw2100_priv *priv = dev_get_drvdata(d);
4062 struct net_device *dev = priv->net_dev;
4063 char buffer[] = "00000000";
4064 unsigned long len =
4065 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
4066 unsigned long val;
4067 char *p = buffer;
4068
4069 IPW_DEBUG_INFO("enter\n");
4070
4071 strncpy(buffer, buf, len);
4072 buffer[len] = 0;
4073
4074 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
4075 p++;
4076 if (p[0] == 'x' || p[0] == 'X')
4077 p++;
4078 val = simple_strtoul(p, &p, 16);
4079 } else
4080 val = simple_strtoul(p, &p, 10);
4081 if (p == buffer) {
4082 IPW_DEBUG_INFO("%s: user supplied invalid value.\n", dev->name);
4083 } else {
4084 priv->ieee->scan_age = val;
4085 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4086 }
4087
4088 IPW_DEBUG_INFO("exit\n");
4089 return len;
4090}
4091
4092static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
4093
4094static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4095 char *buf)
4096{
4097 /* 0 - RF kill not enabled
4098 1 - SW based RF kill active (sysfs)
4099 2 - HW based RF kill active
4100 3 - Both HW and SW baed RF kill active */
4101 struct ipw2100_priv *priv = (struct ipw2100_priv *)d->driver_data;
4102 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4103 (rf_kill_active(priv) ? 0x2 : 0x0);
4104 return sprintf(buf, "%i\n", val);
4105}
4106
4107static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4108{
4109 if ((disable_radio ? 1 : 0) ==
4110 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4111 return 0;
4112
4113 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4114 disable_radio ? "OFF" : "ON");
4115
4116 down(&priv->action_sem);
4117
4118 if (disable_radio) {
4119 priv->status |= STATUS_RF_KILL_SW;
4120 ipw2100_down(priv);
4121 } else {
4122 priv->status &= ~STATUS_RF_KILL_SW;
4123 if (rf_kill_active(priv)) {
4124 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4125 "disabled by HW switch\n");
4126 /* Make sure the RF_KILL check timer is running */
4127 priv->stop_rf_kill = 0;
4128 cancel_delayed_work(&priv->rf_kill);
4129 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
4130 } else
4131 schedule_reset(priv);
4132 }
4133
4134 up(&priv->action_sem);
4135 return 1;
4136}
4137
4138static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4139 const char *buf, size_t count)
4140{
4141 struct ipw2100_priv *priv = dev_get_drvdata(d);
4142 ipw_radio_kill_sw(priv, buf[0] == '1');
4143 return count;
4144}
4145
4146static DEVICE_ATTR(rf_kill, S_IWUSR | S_IRUGO, show_rf_kill, store_rf_kill);
4147
4148static struct attribute *ipw2100_sysfs_entries[] = {
4149 &dev_attr_hardware.attr,
4150 &dev_attr_registers.attr,
4151 &dev_attr_ordinals.attr,
4152 &dev_attr_pci.attr,
4153 &dev_attr_stats.attr,
4154 &dev_attr_internals.attr,
4155 &dev_attr_bssinfo.attr,
4156 &dev_attr_memory.attr,
4157 &dev_attr_scan_age.attr,
4158 &dev_attr_fatal_error.attr,
4159 &dev_attr_rf_kill.attr,
4160 &dev_attr_cfg.attr,
4161 &dev_attr_status.attr,
4162 &dev_attr_capability.attr,
4163 NULL,
4164};
4165
4166static struct attribute_group ipw2100_attribute_group = {
4167 .attrs = ipw2100_sysfs_entries,
4168};
4169
4170static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4171{
4172 struct ipw2100_status_queue *q = &priv->status_queue;
4173
4174 IPW_DEBUG_INFO("enter\n");
4175
4176 q->size = entries * sizeof(struct ipw2100_status);
4177 q->drv =
4178 (struct ipw2100_status *)pci_alloc_consistent(priv->pci_dev,
4179 q->size, &q->nic);
4180 if (!q->drv) {
4181 IPW_DEBUG_WARNING("Can not allocate status queue.\n");
4182 return -ENOMEM;
4183 }
4184
4185 memset(q->drv, 0, q->size);
4186
4187 IPW_DEBUG_INFO("exit\n");
4188
4189 return 0;
4190}
4191
4192static void status_queue_free(struct ipw2100_priv *priv)
4193{
4194 IPW_DEBUG_INFO("enter\n");
4195
4196 if (priv->status_queue.drv) {
4197 pci_free_consistent(priv->pci_dev, priv->status_queue.size,
4198 priv->status_queue.drv,
4199 priv->status_queue.nic);
4200 priv->status_queue.drv = NULL;
4201 }
4202
4203 IPW_DEBUG_INFO("exit\n");
4204}
4205
4206static int bd_queue_allocate(struct ipw2100_priv *priv,
4207 struct ipw2100_bd_queue *q, int entries)
4208{
4209 IPW_DEBUG_INFO("enter\n");
4210
4211 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4212
4213 q->entries = entries;
4214 q->size = entries * sizeof(struct ipw2100_bd);
4215 q->drv = pci_alloc_consistent(priv->pci_dev, q->size, &q->nic);
4216 if (!q->drv) {
4217 IPW_DEBUG_INFO
4218 ("can't allocate shared memory for buffer descriptors\n");
4219 return -ENOMEM;
4220 }
4221 memset(q->drv, 0, q->size);
4222
4223 IPW_DEBUG_INFO("exit\n");
4224
4225 return 0;
4226}
4227
4228static void bd_queue_free(struct ipw2100_priv *priv, struct ipw2100_bd_queue *q)
4229{
4230 IPW_DEBUG_INFO("enter\n");
4231
4232 if (!q)
4233 return;
4234
4235 if (q->drv) {
4236 pci_free_consistent(priv->pci_dev, q->size, q->drv, q->nic);
4237 q->drv = NULL;
4238 }
4239
4240 IPW_DEBUG_INFO("exit\n");
4241}
4242
4243static void bd_queue_initialize(struct ipw2100_priv *priv,
4244 struct ipw2100_bd_queue *q, u32 base, u32 size,
4245 u32 r, u32 w)
4246{
4247 IPW_DEBUG_INFO("enter\n");
4248
4249 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv,
4250 (u32) q->nic);
4251
4252 write_register(priv->net_dev, base, q->nic);
4253 write_register(priv->net_dev, size, q->entries);
4254 write_register(priv->net_dev, r, q->oldest);
4255 write_register(priv->net_dev, w, q->next);
4256
4257 IPW_DEBUG_INFO("exit\n");
4258}
4259
4260static void ipw2100_kill_workqueue(struct ipw2100_priv *priv)
4261{
4262 if (priv->workqueue) {
4263 priv->stop_rf_kill = 1;
4264 priv->stop_hang_check = 1;
4265 cancel_delayed_work(&priv->reset_work);
4266 cancel_delayed_work(&priv->security_work);
4267 cancel_delayed_work(&priv->wx_event_work);
4268 cancel_delayed_work(&priv->hang_check);
4269 cancel_delayed_work(&priv->rf_kill);
4270 destroy_workqueue(priv->workqueue);
4271 priv->workqueue = NULL;
4272 }
4273}
4274
4275static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4276{
4277 int i, j, err = -EINVAL;
4278 void *v;
4279 dma_addr_t p;
4280
4281 IPW_DEBUG_INFO("enter\n");
4282
4283 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4284 if (err) {
4285 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4286 priv->net_dev->name);
4287 return err;
4288 }
4289
4290 priv->tx_buffers =
4291 (struct ipw2100_tx_packet *)kmalloc(TX_PENDED_QUEUE_LENGTH *
4292 sizeof(struct
4293 ipw2100_tx_packet),
4294 GFP_ATOMIC);
4295 if (!priv->tx_buffers) {
4296 printk(KERN_ERR DRV_NAME
4297 ": %s: alloc failed form tx buffers.\n",
4298 priv->net_dev->name);
4299 bd_queue_free(priv, &priv->tx_queue);
4300 return -ENOMEM;
4301 }
4302
4303 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4304 v = pci_alloc_consistent(priv->pci_dev,
4305 sizeof(struct ipw2100_data_header),
4306 &p);
4307 if (!v) {
4308 printk(KERN_ERR DRV_NAME
4309 ": %s: PCI alloc failed for tx " "buffers.\n",
4310 priv->net_dev->name);
4311 err = -ENOMEM;
4312 break;
4313 }
4314
4315 priv->tx_buffers[i].type = DATA;
4316 priv->tx_buffers[i].info.d_struct.data =
4317 (struct ipw2100_data_header *)v;
4318 priv->tx_buffers[i].info.d_struct.data_phys = p;
4319 priv->tx_buffers[i].info.d_struct.txb = NULL;
4320 }
4321
4322 if (i == TX_PENDED_QUEUE_LENGTH)
4323 return 0;
4324
4325 for (j = 0; j < i; j++) {
4326 pci_free_consistent(priv->pci_dev,
4327 sizeof(struct ipw2100_data_header),
4328 priv->tx_buffers[j].info.d_struct.data,
4329 priv->tx_buffers[j].info.d_struct.
4330 data_phys);
4331 }
4332
4333 kfree(priv->tx_buffers);
4334 priv->tx_buffers = NULL;
4335
4336 return err;
4337}
4338
4339static void ipw2100_tx_initialize(struct ipw2100_priv *priv)
4340{
4341 int i;
4342
4343 IPW_DEBUG_INFO("enter\n");
4344
4345 /*
4346 * reinitialize packet info lists
4347 */
4348 INIT_LIST_HEAD(&priv->fw_pend_list);
4349 INIT_STAT(&priv->fw_pend_stat);
4350
4351 /*
4352 * reinitialize lists
4353 */
4354 INIT_LIST_HEAD(&priv->tx_pend_list);
4355 INIT_LIST_HEAD(&priv->tx_free_list);
4356 INIT_STAT(&priv->tx_pend_stat);
4357 INIT_STAT(&priv->tx_free_stat);
4358
4359 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4360 /* We simply drop any SKBs that have been queued for
4361 * transmit */
4362 if (priv->tx_buffers[i].info.d_struct.txb) {
4363 ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.
4364 txb);
4365 priv->tx_buffers[i].info.d_struct.txb = NULL;
4366 }
4367
4368 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4369 }
4370
4371 SET_STAT(&priv->tx_free_stat, i);
4372
4373 priv->tx_queue.oldest = 0;
4374 priv->tx_queue.available = priv->tx_queue.entries;
4375 priv->tx_queue.next = 0;
4376 INIT_STAT(&priv->txq_stat);
4377 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4378
4379 bd_queue_initialize(priv, &priv->tx_queue,
4380 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4381 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4382 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4383 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4384
4385 IPW_DEBUG_INFO("exit\n");
4386
4387}
4388
4389static void ipw2100_tx_free(struct ipw2100_priv *priv)
4390{
4391 int i;
4392
4393 IPW_DEBUG_INFO("enter\n");
4394
4395 bd_queue_free(priv, &priv->tx_queue);
4396
4397 if (!priv->tx_buffers)
4398 return;
4399
4400 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4401 if (priv->tx_buffers[i].info.d_struct.txb) {
4402 ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.
4403 txb);
4404 priv->tx_buffers[i].info.d_struct.txb = NULL;
4405 }
4406 if (priv->tx_buffers[i].info.d_struct.data)
4407 pci_free_consistent(priv->pci_dev,
4408 sizeof(struct ipw2100_data_header),
4409 priv->tx_buffers[i].info.d_struct.
4410 data,
4411 priv->tx_buffers[i].info.d_struct.
4412 data_phys);
4413 }
4414
4415 kfree(priv->tx_buffers);
4416 priv->tx_buffers = NULL;
4417
4418 IPW_DEBUG_INFO("exit\n");
4419}
4420
4421static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4422{
4423 int i, j, err = -EINVAL;
4424
4425 IPW_DEBUG_INFO("enter\n");
4426
4427 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4428 if (err) {
4429 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4430 return err;
4431 }
4432
4433 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4434 if (err) {
4435 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4436 bd_queue_free(priv, &priv->rx_queue);
4437 return err;
4438 }
4439
4440 /*
4441 * allocate packets
4442 */
4443 priv->rx_buffers = (struct ipw2100_rx_packet *)
4444 kmalloc(RX_QUEUE_LENGTH * sizeof(struct ipw2100_rx_packet),
4445 GFP_KERNEL);
4446 if (!priv->rx_buffers) {
4447 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4448
4449 bd_queue_free(priv, &priv->rx_queue);
4450
4451 status_queue_free(priv);
4452
4453 return -ENOMEM;
4454 }
4455
4456 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4457 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4458
4459 err = ipw2100_alloc_skb(priv, packet);
4460 if (unlikely(err)) {
4461 err = -ENOMEM;
4462 break;
4463 }
4464
4465 /* The BD holds the cache aligned address */
4466 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4467 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4468 priv->status_queue.drv[i].status_fields = 0;
4469 }
4470
4471 if (i == RX_QUEUE_LENGTH)
4472 return 0;
4473
4474 for (j = 0; j < i; j++) {
4475 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr,
4476 sizeof(struct ipw2100_rx_packet),
4477 PCI_DMA_FROMDEVICE);
4478 dev_kfree_skb(priv->rx_buffers[j].skb);
4479 }
4480
4481 kfree(priv->rx_buffers);
4482 priv->rx_buffers = NULL;
4483
4484 bd_queue_free(priv, &priv->rx_queue);
4485
4486 status_queue_free(priv);
4487
4488 return err;
4489}
4490
4491static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4492{
4493 IPW_DEBUG_INFO("enter\n");
4494
4495 priv->rx_queue.oldest = 0;
4496 priv->rx_queue.available = priv->rx_queue.entries - 1;
4497 priv->rx_queue.next = priv->rx_queue.entries - 1;
4498
4499 INIT_STAT(&priv->rxq_stat);
4500 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4501
4502 bd_queue_initialize(priv, &priv->rx_queue,
4503 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4504 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4505 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4506 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4507
4508 /* set up the status queue */
4509 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4510 priv->status_queue.nic);
4511
4512 IPW_DEBUG_INFO("exit\n");
4513}
4514
4515static void ipw2100_rx_free(struct ipw2100_priv *priv)
4516{
4517 int i;
4518
4519 IPW_DEBUG_INFO("enter\n");
4520
4521 bd_queue_free(priv, &priv->rx_queue);
4522 status_queue_free(priv);
4523
4524 if (!priv->rx_buffers)
4525 return;
4526
4527 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4528 if (priv->rx_buffers[i].rxp) {
4529 pci_unmap_single(priv->pci_dev,
4530 priv->rx_buffers[i].dma_addr,
4531 sizeof(struct ipw2100_rx),
4532 PCI_DMA_FROMDEVICE);
4533 dev_kfree_skb(priv->rx_buffers[i].skb);
4534 }
4535 }
4536
4537 kfree(priv->rx_buffers);
4538 priv->rx_buffers = NULL;
4539
4540 IPW_DEBUG_INFO("exit\n");
4541}
4542
4543static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4544{
4545 u32 length = ETH_ALEN;
4546 u8 mac[ETH_ALEN];
4547
4548 int err;
4549
4550 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC, mac, &length);
4551 if (err) {
4552 IPW_DEBUG_INFO("MAC address read failed\n");
4553 return -EIO;
4554 }
4555 IPW_DEBUG_INFO("card MAC is %02X:%02X:%02X:%02X:%02X:%02X\n",
4556 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
4557
4558 memcpy(priv->net_dev->dev_addr, mac, ETH_ALEN);
4559
4560 return 0;
4561}
4562
4563/********************************************************************
4564 *
4565 * Firmware Commands
4566 *
4567 ********************************************************************/
4568
4569static int ipw2100_set_mac_address(struct ipw2100_priv *priv, int batch_mode)
4570{
4571 struct host_command cmd = {
4572 .host_command = ADAPTER_ADDRESS,
4573 .host_command_sequence = 0,
4574 .host_command_length = ETH_ALEN
4575 };
4576 int err;
4577
4578 IPW_DEBUG_HC("SET_MAC_ADDRESS\n");
4579
4580 IPW_DEBUG_INFO("enter\n");
4581
4582 if (priv->config & CFG_CUSTOM_MAC) {
4583 memcpy(cmd.host_command_parameters, priv->mac_addr, ETH_ALEN);
4584 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4585 } else
4586 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4587 ETH_ALEN);
4588
4589 err = ipw2100_hw_send_command(priv, &cmd);
4590
4591 IPW_DEBUG_INFO("exit\n");
4592 return err;
4593}
4594
4595static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4596 int batch_mode)
4597{
4598 struct host_command cmd = {
4599 .host_command = PORT_TYPE,
4600 .host_command_sequence = 0,
4601 .host_command_length = sizeof(u32)
4602 };
4603 int err;
4604
4605 switch (port_type) {
4606 case IW_MODE_INFRA:
4607 cmd.host_command_parameters[0] = IPW_BSS;
4608 break;
4609 case IW_MODE_ADHOC:
4610 cmd.host_command_parameters[0] = IPW_IBSS;
4611 break;
4612 }
4613
4614 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4615 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4616
4617 if (!batch_mode) {
4618 err = ipw2100_disable_adapter(priv);
4619 if (err) {
4620 printk(KERN_ERR DRV_NAME
4621 ": %s: Could not disable adapter %d\n",
4622 priv->net_dev->name, err);
4623 return err;
4624 }
4625 }
4626
4627 /* send cmd to firmware */
4628 err = ipw2100_hw_send_command(priv, &cmd);
4629
4630 if (!batch_mode)
4631 ipw2100_enable_adapter(priv);
4632
4633 return err;
4634}
4635
4636static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4637 int batch_mode)
4638{
4639 struct host_command cmd = {
4640 .host_command = CHANNEL,
4641 .host_command_sequence = 0,
4642 .host_command_length = sizeof(u32)
4643 };
4644 int err;
4645
4646 cmd.host_command_parameters[0] = channel;
4647
4648 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4649
4650 /* If BSS then we don't support channel selection */
4651 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4652 return 0;
4653
4654 if ((channel != 0) &&
4655 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4656 return -EINVAL;
4657
4658 if (!batch_mode) {
4659 err = ipw2100_disable_adapter(priv);
4660 if (err)
4661 return err;
4662 }
4663
4664 err = ipw2100_hw_send_command(priv, &cmd);
4665 if (err) {
4666 IPW_DEBUG_INFO("Failed to set channel to %d", channel);
4667 return err;
4668 }
4669
4670 if (channel)
4671 priv->config |= CFG_STATIC_CHANNEL;
4672 else
4673 priv->config &= ~CFG_STATIC_CHANNEL;
4674
4675 priv->channel = channel;
4676
4677 if (!batch_mode) {
4678 err = ipw2100_enable_adapter(priv);
4679 if (err)
4680 return err;
4681 }
4682
4683 return 0;
4684}
4685
4686static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4687{
4688 struct host_command cmd = {
4689 .host_command = SYSTEM_CONFIG,
4690 .host_command_sequence = 0,
4691 .host_command_length = 12,
4692 };
4693 u32 ibss_mask, len = sizeof(u32);
4694 int err;
4695
4696 /* Set system configuration */
4697
4698 if (!batch_mode) {
4699 err = ipw2100_disable_adapter(priv);
4700 if (err)
4701 return err;
4702 }
4703
4704 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4705 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4706
4707 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4708 IPW_CFG_BSS_MASK | IPW_CFG_802_1x_ENABLE;
4709
4710 if (!(priv->config & CFG_LONG_PREAMBLE))
4711 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4712
4713 err = ipw2100_get_ordinal(priv,
4714 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4715 &ibss_mask, &len);
4716 if (err)
4717 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4718
4719 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4720 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4721
4722 /* 11b only */
4723 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A; */
4724
4725 err = ipw2100_hw_send_command(priv, &cmd);
4726 if (err)
4727 return err;
4728
4729/* If IPv6 is configured in the kernel then we don't want to filter out all
4730 * of the multicast packets as IPv6 needs some. */
4731#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4732 cmd.host_command = ADD_MULTICAST;
4733 cmd.host_command_sequence = 0;
4734 cmd.host_command_length = 0;
4735
4736 ipw2100_hw_send_command(priv, &cmd);
4737#endif
4738 if (!batch_mode) {
4739 err = ipw2100_enable_adapter(priv);
4740 if (err)
4741 return err;
4742 }
4743
4744 return 0;
4745}
4746
4747static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4748 int batch_mode)
4749{
4750 struct host_command cmd = {
4751 .host_command = BASIC_TX_RATES,
4752 .host_command_sequence = 0,
4753 .host_command_length = 4
4754 };
4755 int err;
4756
4757 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4758
4759 if (!batch_mode) {
4760 err = ipw2100_disable_adapter(priv);
4761 if (err)
4762 return err;
4763 }
4764
4765 /* Set BASIC TX Rate first */
4766 ipw2100_hw_send_command(priv, &cmd);
4767
4768 /* Set TX Rate */
4769 cmd.host_command = TX_RATES;
4770 ipw2100_hw_send_command(priv, &cmd);
4771
4772 /* Set MSDU TX Rate */
4773 cmd.host_command = MSDU_TX_RATES;
4774 ipw2100_hw_send_command(priv, &cmd);
4775
4776 if (!batch_mode) {
4777 err = ipw2100_enable_adapter(priv);
4778 if (err)
4779 return err;
4780 }
4781
4782 priv->tx_rates = rate;
4783
4784 return 0;
4785}
4786
4787static int ipw2100_set_power_mode(struct ipw2100_priv *priv, int power_level)
4788{
4789 struct host_command cmd = {
4790 .host_command = POWER_MODE,
4791 .host_command_sequence = 0,
4792 .host_command_length = 4
4793 };
4794 int err;
4795
4796 cmd.host_command_parameters[0] = power_level;
4797
4798 err = ipw2100_hw_send_command(priv, &cmd);
4799 if (err)
4800 return err;
4801
4802 if (power_level == IPW_POWER_MODE_CAM)
4803 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4804 else
4805 priv->power_mode = IPW_POWER_ENABLED | power_level;
4806
4807#ifdef CONFIG_IPW2100_TX_POWER
4808 if (priv->port_type == IBSS && priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4809 /* Set beacon interval */
4810 cmd.host_command = TX_POWER_INDEX;
4811 cmd.host_command_parameters[0] = (u32) priv->adhoc_power;
4812
4813 err = ipw2100_hw_send_command(priv, &cmd);
4814 if (err)
4815 return err;
4816 }
4817#endif
4818
4819 return 0;
4820}
4821
4822static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4823{
4824 struct host_command cmd = {
4825 .host_command = RTS_THRESHOLD,
4826 .host_command_sequence = 0,
4827 .host_command_length = 4
4828 };
4829 int err;
4830
4831 if (threshold & RTS_DISABLED)
4832 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4833 else
4834 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4835
4836 err = ipw2100_hw_send_command(priv, &cmd);
4837 if (err)
4838 return err;
4839
4840 priv->rts_threshold = threshold;
4841
4842 return 0;
4843}
4844
4845#if 0
4846int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4847 u32 threshold, int batch_mode)
4848{
4849 struct host_command cmd = {
4850 .host_command = FRAG_THRESHOLD,
4851 .host_command_sequence = 0,
4852 .host_command_length = 4,
4853 .host_command_parameters[0] = 0,
4854 };
4855 int err;
4856
4857 if (!batch_mode) {
4858 err = ipw2100_disable_adapter(priv);
4859 if (err)
4860 return err;
4861 }
4862
4863 if (threshold == 0)
4864 threshold = DEFAULT_FRAG_THRESHOLD;
4865 else {
4866 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4867 threshold = min(threshold, MAX_FRAG_THRESHOLD);
4868 }
4869
4870 cmd.host_command_parameters[0] = threshold;
4871
4872 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
4873
4874 err = ipw2100_hw_send_command(priv, &cmd);
4875
4876 if (!batch_mode)
4877 ipw2100_enable_adapter(priv);
4878
4879 if (!err)
4880 priv->frag_threshold = threshold;
4881
4882 return err;
4883}
4884#endif
4885
4886static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
4887{
4888 struct host_command cmd = {
4889 .host_command = SHORT_RETRY_LIMIT,
4890 .host_command_sequence = 0,
4891 .host_command_length = 4
4892 };
4893 int err;
4894
4895 cmd.host_command_parameters[0] = retry;
4896
4897 err = ipw2100_hw_send_command(priv, &cmd);
4898 if (err)
4899 return err;
4900
4901 priv->short_retry_limit = retry;
4902
4903 return 0;
4904}
4905
4906static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
4907{
4908 struct host_command cmd = {
4909 .host_command = LONG_RETRY_LIMIT,
4910 .host_command_sequence = 0,
4911 .host_command_length = 4
4912 };
4913 int err;
4914
4915 cmd.host_command_parameters[0] = retry;
4916
4917 err = ipw2100_hw_send_command(priv, &cmd);
4918 if (err)
4919 return err;
4920
4921 priv->long_retry_limit = retry;
4922
4923 return 0;
4924}
4925
4926static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 * bssid,
4927 int batch_mode)
4928{
4929 struct host_command cmd = {
4930 .host_command = MANDATORY_BSSID,
4931 .host_command_sequence = 0,
4932 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
4933 };
4934 int err;
4935
4936#ifdef CONFIG_IPW_DEBUG
4937 if (bssid != NULL)
4938 IPW_DEBUG_HC("MANDATORY_BSSID: %02X:%02X:%02X:%02X:%02X:%02X\n",
4939 bssid[0], bssid[1], bssid[2], bssid[3], bssid[4],
4940 bssid[5]);
4941 else
4942 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
4943#endif
4944 /* if BSSID is empty then we disable mandatory bssid mode */
4945 if (bssid != NULL)
4946 memcpy(cmd.host_command_parameters, bssid, ETH_ALEN);
4947
4948 if (!batch_mode) {
4949 err = ipw2100_disable_adapter(priv);
4950 if (err)
4951 return err;
4952 }
4953
4954 err = ipw2100_hw_send_command(priv, &cmd);
4955
4956 if (!batch_mode)
4957 ipw2100_enable_adapter(priv);
4958
4959 return err;
4960}
4961
4962static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
4963{
4964 struct host_command cmd = {
4965 .host_command = DISASSOCIATION_BSSID,
4966 .host_command_sequence = 0,
4967 .host_command_length = ETH_ALEN
4968 };
4969 int err;
4970 int len;
4971
4972 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
4973
4974 len = ETH_ALEN;
4975 /* The Firmware currently ignores the BSSID and just disassociates from
4976 * the currently associated AP -- but in the off chance that a future
4977 * firmware does use the BSSID provided here, we go ahead and try and
4978 * set it to the currently associated AP's BSSID */
4979 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
4980
4981 err = ipw2100_hw_send_command(priv, &cmd);
4982
4983 return err;
4984}
4985
4986static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
4987 struct ipw2100_wpa_assoc_frame *, int)
4988 __attribute__ ((unused));
4989
4990static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
4991 struct ipw2100_wpa_assoc_frame *wpa_frame,
4992 int batch_mode)
4993{
4994 struct host_command cmd = {
4995 .host_command = SET_WPA_IE,
4996 .host_command_sequence = 0,
4997 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
4998 };
4999 int err;
5000
5001 IPW_DEBUG_HC("SET_WPA_IE\n");
5002
5003 if (!batch_mode) {
5004 err = ipw2100_disable_adapter(priv);
5005 if (err)
5006 return err;
5007 }
5008
5009 memcpy(cmd.host_command_parameters, wpa_frame,
5010 sizeof(struct ipw2100_wpa_assoc_frame));
5011
5012 err = ipw2100_hw_send_command(priv, &cmd);
5013
5014 if (!batch_mode) {
5015 if (ipw2100_enable_adapter(priv))
5016 err = -EIO;
5017 }
5018
5019 return err;
5020}
5021
5022struct security_info_params {
5023 u32 allowed_ciphers;
5024 u16 version;
5025 u8 auth_mode;
5026 u8 replay_counters_number;
5027 u8 unicast_using_group;
5028} __attribute__ ((packed));
5029
5030static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5031 int auth_mode,
5032 int security_level,
5033 int unicast_using_group,
5034 int batch_mode)
5035{
5036 struct host_command cmd = {
5037 .host_command = SET_SECURITY_INFORMATION,
5038 .host_command_sequence = 0,
5039 .host_command_length = sizeof(struct security_info_params)
5040 };
5041 struct security_info_params *security =
5042 (struct security_info_params *)&cmd.host_command_parameters;
5043 int err;
5044 memset(security, 0, sizeof(*security));
5045
5046 /* If shared key AP authentication is turned on, then we need to
5047 * configure the firmware to try and use it.
5048 *
5049 * Actual data encryption/decryption is handled by the host. */
5050 security->auth_mode = auth_mode;
5051 security->unicast_using_group = unicast_using_group;
5052
5053 switch (security_level) {
5054 default:
5055 case SEC_LEVEL_0:
5056 security->allowed_ciphers = IPW_NONE_CIPHER;
5057 break;
5058 case SEC_LEVEL_1:
5059 security->allowed_ciphers = IPW_WEP40_CIPHER |
5060 IPW_WEP104_CIPHER;
5061 break;
5062 case SEC_LEVEL_2:
5063 security->allowed_ciphers = IPW_WEP40_CIPHER |
5064 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5065 break;
5066 case SEC_LEVEL_2_CKIP:
5067 security->allowed_ciphers = IPW_WEP40_CIPHER |
5068 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5069 break;
5070 case SEC_LEVEL_3:
5071 security->allowed_ciphers = IPW_WEP40_CIPHER |
5072 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5073 break;
5074 }
5075
5076 IPW_DEBUG_HC
5077 ("SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5078 security->auth_mode, security->allowed_ciphers, security_level);
5079
5080 security->replay_counters_number = 0;
5081
5082 if (!batch_mode) {
5083 err = ipw2100_disable_adapter(priv);
5084 if (err)
5085 return err;
5086 }
5087
5088 err = ipw2100_hw_send_command(priv, &cmd);
5089
5090 if (!batch_mode)
5091 ipw2100_enable_adapter(priv);
5092
5093 return err;
5094}
5095
5096static int ipw2100_set_tx_power(struct ipw2100_priv *priv, u32 tx_power)
5097{
5098 struct host_command cmd = {
5099 .host_command = TX_POWER_INDEX,
5100 .host_command_sequence = 0,
5101 .host_command_length = 4
5102 };
5103 int err = 0;
5104
5105 if (tx_power != IPW_TX_POWER_DEFAULT)
5106 tx_power = (tx_power - IPW_TX_POWER_MIN_DBM) * 16 /
5107 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
5108
5109 cmd.host_command_parameters[0] = tx_power;
5110
5111 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5112 err = ipw2100_hw_send_command(priv, &cmd);
5113 if (!err)
5114 priv->tx_power = tx_power;
5115
5116 return 0;
5117}
5118
5119static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5120 u32 interval, int batch_mode)
5121{
5122 struct host_command cmd = {
5123 .host_command = BEACON_INTERVAL,
5124 .host_command_sequence = 0,
5125 .host_command_length = 4
5126 };
5127 int err;
5128
5129 cmd.host_command_parameters[0] = interval;
5130
5131 IPW_DEBUG_INFO("enter\n");
5132
5133 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5134 if (!batch_mode) {
5135 err = ipw2100_disable_adapter(priv);
5136 if (err)
5137 return err;
5138 }
5139
5140 ipw2100_hw_send_command(priv, &cmd);
5141
5142 if (!batch_mode) {
5143 err = ipw2100_enable_adapter(priv);
5144 if (err)
5145 return err;
5146 }
5147 }
5148
5149 IPW_DEBUG_INFO("exit\n");
5150
5151 return 0;
5152}
5153
5154void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5155{
5156 ipw2100_tx_initialize(priv);
5157 ipw2100_rx_initialize(priv);
5158 ipw2100_msg_initialize(priv);
5159}
5160
5161void ipw2100_queues_free(struct ipw2100_priv *priv)
5162{
5163 ipw2100_tx_free(priv);
5164 ipw2100_rx_free(priv);
5165 ipw2100_msg_free(priv);
5166}
5167
5168int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5169{
5170 if (ipw2100_tx_allocate(priv) ||
5171 ipw2100_rx_allocate(priv) || ipw2100_msg_allocate(priv))
5172 goto fail;
5173
5174 return 0;
5175
5176 fail:
5177 ipw2100_tx_free(priv);
5178 ipw2100_rx_free(priv);
5179 ipw2100_msg_free(priv);
5180 return -ENOMEM;
5181}
5182
5183#define IPW_PRIVACY_CAPABLE 0x0008
5184
5185static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5186 int batch_mode)
5187{
5188 struct host_command cmd = {
5189 .host_command = WEP_FLAGS,
5190 .host_command_sequence = 0,
5191 .host_command_length = 4
5192 };
5193 int err;
5194
5195 cmd.host_command_parameters[0] = flags;
5196
5197 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5198
5199 if (!batch_mode) {
5200 err = ipw2100_disable_adapter(priv);
5201 if (err) {
5202 printk(KERN_ERR DRV_NAME
5203 ": %s: Could not disable adapter %d\n",
5204 priv->net_dev->name, err);
5205 return err;
5206 }
5207 }
5208
5209 /* send cmd to firmware */
5210 err = ipw2100_hw_send_command(priv, &cmd);
5211
5212 if (!batch_mode)
5213 ipw2100_enable_adapter(priv);
5214
5215 return err;
5216}
5217
5218struct ipw2100_wep_key {
5219 u8 idx;
5220 u8 len;
5221 u8 key[13];
5222};
5223
5224/* Macros to ease up priting WEP keys */
5225#define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5226#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5227#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5228#define WEP_STR_128(x) x[0],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10]
5229
5230/**
5231 * Set a the wep key
5232 *
5233 * @priv: struct to work on
5234 * @idx: index of the key we want to set
5235 * @key: ptr to the key data to set
5236 * @len: length of the buffer at @key
5237 * @batch_mode: FIXME perform the operation in batch mode, not
5238 * disabling the device.
5239 *
5240 * @returns 0 if OK, < 0 errno code on error.
5241 *
5242 * Fill out a command structure with the new wep key, length an
5243 * index and send it down the wire.
5244 */
5245static int ipw2100_set_key(struct ipw2100_priv *priv,
5246 int idx, char *key, int len, int batch_mode)
5247{
5248 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5249 struct host_command cmd = {
5250 .host_command = WEP_KEY_INFO,
5251 .host_command_sequence = 0,
5252 .host_command_length = sizeof(struct ipw2100_wep_key),
5253 };
5254 struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters;
5255 int err;
5256
5257 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5258 idx, keylen, len);
5259
5260 /* NOTE: We don't check cached values in case the firmware was reset
5261 * or some other problem is occuring. If the user is setting the key,
5262 * then we push the change */
5263
5264 wep_key->idx = idx;
5265 wep_key->len = keylen;
5266
5267 if (keylen) {
5268 memcpy(wep_key->key, key, len);
5269 memset(wep_key->key + len, 0, keylen - len);
5270 }
5271
5272 /* Will be optimized out on debug not being configured in */
5273 if (keylen == 0)
5274 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5275 priv->net_dev->name, wep_key->idx);
5276 else if (keylen == 5)
5277 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5278 priv->net_dev->name, wep_key->idx, wep_key->len,
5279 WEP_STR_64(wep_key->key));
5280 else
5281 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5282 "\n",
5283 priv->net_dev->name, wep_key->idx, wep_key->len,
5284 WEP_STR_128(wep_key->key));
5285
5286 if (!batch_mode) {
5287 err = ipw2100_disable_adapter(priv);
5288 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5289 if (err) {
5290 printk(KERN_ERR DRV_NAME
5291 ": %s: Could not disable adapter %d\n",
5292 priv->net_dev->name, err);
5293 return err;
5294 }
5295 }
5296
5297 /* send cmd to firmware */
5298 err = ipw2100_hw_send_command(priv, &cmd);
5299
5300 if (!batch_mode) {
5301 int err2 = ipw2100_enable_adapter(priv);
5302 if (err == 0)
5303 err = err2;
5304 }
5305 return err;
5306}
5307
5308static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5309 int idx, int batch_mode)
5310{
5311 struct host_command cmd = {
5312 .host_command = WEP_KEY_INDEX,
5313 .host_command_sequence = 0,
5314 .host_command_length = 4,
5315 .host_command_parameters = {idx},
5316 };
5317 int err;
5318
5319 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5320
5321 if (idx < 0 || idx > 3)
5322 return -EINVAL;
5323
5324 if (!batch_mode) {
5325 err = ipw2100_disable_adapter(priv);
5326 if (err) {
5327 printk(KERN_ERR DRV_NAME
5328 ": %s: Could not disable adapter %d\n",
5329 priv->net_dev->name, err);
5330 return err;
5331 }
5332 }
5333
5334 /* send cmd to firmware */
5335 err = ipw2100_hw_send_command(priv, &cmd);
5336
5337 if (!batch_mode)
5338 ipw2100_enable_adapter(priv);
5339
5340 return err;
5341}
5342
5343static int ipw2100_configure_security(struct ipw2100_priv *priv, int batch_mode)
5344{
5345 int i, err, auth_mode, sec_level, use_group;
5346
5347 if (!(priv->status & STATUS_RUNNING))
5348 return 0;
5349
5350 if (!batch_mode) {
5351 err = ipw2100_disable_adapter(priv);
5352 if (err)
5353 return err;
5354 }
5355
5356 if (!priv->ieee->sec.enabled) {
5357 err =
5358 ipw2100_set_security_information(priv, IPW_AUTH_OPEN,
5359 SEC_LEVEL_0, 0, 1);
5360 } else {
5361 auth_mode = IPW_AUTH_OPEN;
5362 if ((priv->ieee->sec.flags & SEC_AUTH_MODE) &&
5363 (priv->ieee->sec.auth_mode == WLAN_AUTH_SHARED_KEY))
5364 auth_mode = IPW_AUTH_SHARED;
5365
5366 sec_level = SEC_LEVEL_0;
5367 if (priv->ieee->sec.flags & SEC_LEVEL)
5368 sec_level = priv->ieee->sec.level;
5369
5370 use_group = 0;
5371 if (priv->ieee->sec.flags & SEC_UNICAST_GROUP)
5372 use_group = priv->ieee->sec.unicast_uses_group;
5373
5374 err =
5375 ipw2100_set_security_information(priv, auth_mode, sec_level,
5376 use_group, 1);
5377 }
5378
5379 if (err)
5380 goto exit;
5381
5382 if (priv->ieee->sec.enabled) {
5383 for (i = 0; i < 4; i++) {
5384 if (!(priv->ieee->sec.flags & (1 << i))) {
5385 memset(priv->ieee->sec.keys[i], 0, WEP_KEY_LEN);
5386 priv->ieee->sec.key_sizes[i] = 0;
5387 } else {
5388 err = ipw2100_set_key(priv, i,
5389 priv->ieee->sec.keys[i],
5390 priv->ieee->sec.
5391 key_sizes[i], 1);
5392 if (err)
5393 goto exit;
5394 }
5395 }
5396
5397 ipw2100_set_key_index(priv, priv->ieee->tx_keyidx, 1);
5398 }
5399
5400 /* Always enable privacy so the Host can filter WEP packets if
5401 * encrypted data is sent up */
5402 err =
5403 ipw2100_set_wep_flags(priv,
5404 priv->ieee->sec.
5405 enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5406 if (err)
5407 goto exit;
5408
5409 priv->status &= ~STATUS_SECURITY_UPDATED;
5410
5411 exit:
5412 if (!batch_mode)
5413 ipw2100_enable_adapter(priv);
5414
5415 return err;
5416}
5417
5418static void ipw2100_security_work(struct ipw2100_priv *priv)
5419{
5420 /* If we happen to have reconnected before we get a chance to
5421 * process this, then update the security settings--which causes
5422 * a disassociation to occur */
5423 if (!(priv->status & STATUS_ASSOCIATED) &&
5424 priv->status & STATUS_SECURITY_UPDATED)
5425 ipw2100_configure_security(priv, 0);
5426}
5427
5428static void shim__set_security(struct net_device *dev,
5429 struct ieee80211_security *sec)
5430{
5431 struct ipw2100_priv *priv = ieee80211_priv(dev);
5432 int i, force_update = 0;
5433
5434 down(&priv->action_sem);
5435 if (!(priv->status & STATUS_INITIALIZED))
5436 goto done;
5437
5438 for (i = 0; i < 4; i++) {
5439 if (sec->flags & (1 << i)) {
5440 priv->ieee->sec.key_sizes[i] = sec->key_sizes[i];
5441 if (sec->key_sizes[i] == 0)
5442 priv->ieee->sec.flags &= ~(1 << i);
5443 else
5444 memcpy(priv->ieee->sec.keys[i], sec->keys[i],
5445 sec->key_sizes[i]);
5446 if (sec->level == SEC_LEVEL_1) {
5447 priv->ieee->sec.flags |= (1 << i);
5448 priv->status |= STATUS_SECURITY_UPDATED;
5449 } else
5450 priv->ieee->sec.flags &= ~(1 << i);
5451 }
5452 }
5453
5454 if ((sec->flags & SEC_ACTIVE_KEY) &&
5455 priv->ieee->sec.active_key != sec->active_key) {
5456 if (sec->active_key <= 3) {
5457 priv->ieee->sec.active_key = sec->active_key;
5458 priv->ieee->sec.flags |= SEC_ACTIVE_KEY;
5459 } else
5460 priv->ieee->sec.flags &= ~SEC_ACTIVE_KEY;
5461
5462 priv->status |= STATUS_SECURITY_UPDATED;
5463 }
5464
5465 if ((sec->flags & SEC_AUTH_MODE) &&
5466 (priv->ieee->sec.auth_mode != sec->auth_mode)) {
5467 priv->ieee->sec.auth_mode = sec->auth_mode;
5468 priv->ieee->sec.flags |= SEC_AUTH_MODE;
5469 priv->status |= STATUS_SECURITY_UPDATED;
5470 }
5471
5472 if (sec->flags & SEC_ENABLED && priv->ieee->sec.enabled != sec->enabled) {
5473 priv->ieee->sec.flags |= SEC_ENABLED;
5474 priv->ieee->sec.enabled = sec->enabled;
5475 priv->status |= STATUS_SECURITY_UPDATED;
5476 force_update = 1;
5477 }
5478
5479 if (sec->flags & SEC_ENCRYPT)
5480 priv->ieee->sec.encrypt = sec->encrypt;
5481
5482 if (sec->flags & SEC_LEVEL && priv->ieee->sec.level != sec->level) {
5483 priv->ieee->sec.level = sec->level;
5484 priv->ieee->sec.flags |= SEC_LEVEL;
5485 priv->status |= STATUS_SECURITY_UPDATED;
5486 }
5487
5488 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5489 priv->ieee->sec.flags & (1 << 8) ? '1' : '0',
5490 priv->ieee->sec.flags & (1 << 7) ? '1' : '0',
5491 priv->ieee->sec.flags & (1 << 6) ? '1' : '0',
5492 priv->ieee->sec.flags & (1 << 5) ? '1' : '0',
5493 priv->ieee->sec.flags & (1 << 4) ? '1' : '0',
5494 priv->ieee->sec.flags & (1 << 3) ? '1' : '0',
5495 priv->ieee->sec.flags & (1 << 2) ? '1' : '0',
5496 priv->ieee->sec.flags & (1 << 1) ? '1' : '0',
5497 priv->ieee->sec.flags & (1 << 0) ? '1' : '0');
5498
5499/* As a temporary work around to enable WPA until we figure out why
5500 * wpa_supplicant toggles the security capability of the driver, which
5501 * forces a disassocation with force_update...
5502 *
5503 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5504 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5505 ipw2100_configure_security(priv, 0);
5506 done:
5507 up(&priv->action_sem);
5508}
5509
5510static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5511{
5512 int err;
5513 int batch_mode = 1;
5514 u8 *bssid;
5515
5516 IPW_DEBUG_INFO("enter\n");
5517
5518 err = ipw2100_disable_adapter(priv);
5519 if (err)
5520 return err;
5521#ifdef CONFIG_IPW2100_MONITOR
5522 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5523 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5524 if (err)
5525 return err;
5526
5527 IPW_DEBUG_INFO("exit\n");
5528
5529 return 0;
5530 }
5531#endif /* CONFIG_IPW2100_MONITOR */
5532
5533 err = ipw2100_read_mac_address(priv);
5534 if (err)
5535 return -EIO;
5536
5537 err = ipw2100_set_mac_address(priv, batch_mode);
5538 if (err)
5539 return err;
5540
5541 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5542 if (err)
5543 return err;
5544
5545 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5546 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5547 if (err)
5548 return err;
5549 }
5550
5551 err = ipw2100_system_config(priv, batch_mode);
5552 if (err)
5553 return err;
5554
5555 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5556 if (err)
5557 return err;
5558
5559 /* Default to power mode OFF */
5560 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5561 if (err)
5562 return err;
5563
5564 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5565 if (err)
5566 return err;
5567
5568 if (priv->config & CFG_STATIC_BSSID)
5569 bssid = priv->bssid;
5570 else
5571 bssid = NULL;
5572 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5573 if (err)
5574 return err;
5575
5576 if (priv->config & CFG_STATIC_ESSID)
5577 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5578 batch_mode);
5579 else
5580 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5581 if (err)
5582 return err;
5583
5584 err = ipw2100_configure_security(priv, batch_mode);
5585 if (err)
5586 return err;
5587
5588 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5589 err =
5590 ipw2100_set_ibss_beacon_interval(priv,
5591 priv->beacon_interval,
5592 batch_mode);
5593 if (err)
5594 return err;
5595
5596 err = ipw2100_set_tx_power(priv, priv->tx_power);
5597 if (err)
5598 return err;
5599 }
5600
5601 /*
5602 err = ipw2100_set_fragmentation_threshold(
5603 priv, priv->frag_threshold, batch_mode);
5604 if (err)
5605 return err;
5606 */
5607
5608 IPW_DEBUG_INFO("exit\n");
5609
5610 return 0;
5611}
5612
5613/*************************************************************************
5614 *
5615 * EXTERNALLY CALLED METHODS
5616 *
5617 *************************************************************************/
5618
5619/* This method is called by the network layer -- not to be confused with
5620 * ipw2100_set_mac_address() declared above called by this driver (and this
5621 * method as well) to talk to the firmware */
5622static int ipw2100_set_address(struct net_device *dev, void *p)
5623{
5624 struct ipw2100_priv *priv = ieee80211_priv(dev);
5625 struct sockaddr *addr = p;
5626 int err = 0;
5627
5628 if (!is_valid_ether_addr(addr->sa_data))
5629 return -EADDRNOTAVAIL;
5630
5631 down(&priv->action_sem);
5632
5633 priv->config |= CFG_CUSTOM_MAC;
5634 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5635
5636 err = ipw2100_set_mac_address(priv, 0);
5637 if (err)
5638 goto done;
5639
5640 priv->reset_backoff = 0;
5641 up(&priv->action_sem);
5642 ipw2100_reset_adapter(priv);
5643 return 0;
5644
5645 done:
5646 up(&priv->action_sem);
5647 return err;
5648}
5649
5650static int ipw2100_open(struct net_device *dev)
5651{
5652 struct ipw2100_priv *priv = ieee80211_priv(dev);
5653 unsigned long flags;
5654 IPW_DEBUG_INFO("dev->open\n");
5655
5656 spin_lock_irqsave(&priv->low_lock, flags);
5657 if (priv->status & STATUS_ASSOCIATED) {
5658 netif_carrier_on(dev);
5659 netif_start_queue(dev);
5660 }
5661 spin_unlock_irqrestore(&priv->low_lock, flags);
5662
5663 return 0;
5664}
5665
5666static int ipw2100_close(struct net_device *dev)
5667{
5668 struct ipw2100_priv *priv = ieee80211_priv(dev);
5669 unsigned long flags;
5670 struct list_head *element;
5671 struct ipw2100_tx_packet *packet;
5672
5673 IPW_DEBUG_INFO("enter\n");
5674
5675 spin_lock_irqsave(&priv->low_lock, flags);
5676
5677 if (priv->status & STATUS_ASSOCIATED)
5678 netif_carrier_off(dev);
5679 netif_stop_queue(dev);
5680
5681 /* Flush the TX queue ... */
5682 while (!list_empty(&priv->tx_pend_list)) {
5683 element = priv->tx_pend_list.next;
5684 packet = list_entry(element, struct ipw2100_tx_packet, list);
5685
5686 list_del(element);
5687 DEC_STAT(&priv->tx_pend_stat);
5688
5689 ieee80211_txb_free(packet->info.d_struct.txb);
5690 packet->info.d_struct.txb = NULL;
5691
5692 list_add_tail(element, &priv->tx_free_list);
5693 INC_STAT(&priv->tx_free_stat);
5694 }
5695 spin_unlock_irqrestore(&priv->low_lock, flags);
5696
5697 IPW_DEBUG_INFO("exit\n");
5698
5699 return 0;
5700}
5701
5702/*
5703 * TODO: Fix this function... its just wrong
5704 */
5705static void ipw2100_tx_timeout(struct net_device *dev)
5706{
5707 struct ipw2100_priv *priv = ieee80211_priv(dev);
5708
5709 priv->ieee->stats.tx_errors++;
5710
5711#ifdef CONFIG_IPW2100_MONITOR
5712 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5713 return;
5714#endif
5715
5716 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5717 dev->name);
5718 schedule_reset(priv);
5719}
5720
5721/*
5722 * TODO: reimplement it so that it reads statistics
5723 * from the adapter using ordinal tables
5724 * instead of/in addition to collecting them
5725 * in the driver
5726 */
5727static struct net_device_stats *ipw2100_stats(struct net_device *dev)
5728{
5729 struct ipw2100_priv *priv = ieee80211_priv(dev);
5730
5731 return &priv->ieee->stats;
5732}
5733
5734#if WIRELESS_EXT < 18
5735/* Support for wpa_supplicant before WE-18, deprecated. */
5736
5737/* following definitions must match definitions in driver_ipw.c */
5738
5739#define IPW2100_IOCTL_WPA_SUPPLICANT SIOCIWFIRSTPRIV+30
5740
5741#define IPW2100_CMD_SET_WPA_PARAM 1
5742#define IPW2100_CMD_SET_WPA_IE 2
5743#define IPW2100_CMD_SET_ENCRYPTION 3
5744#define IPW2100_CMD_MLME 4
5745
5746#define IPW2100_PARAM_WPA_ENABLED 1
5747#define IPW2100_PARAM_TKIP_COUNTERMEASURES 2
5748#define IPW2100_PARAM_DROP_UNENCRYPTED 3
5749#define IPW2100_PARAM_PRIVACY_INVOKED 4
5750#define IPW2100_PARAM_AUTH_ALGS 5
5751#define IPW2100_PARAM_IEEE_802_1X 6
5752
5753#define IPW2100_MLME_STA_DEAUTH 1
5754#define IPW2100_MLME_STA_DISASSOC 2
5755
5756#define IPW2100_CRYPT_ERR_UNKNOWN_ALG 2
5757#define IPW2100_CRYPT_ERR_UNKNOWN_ADDR 3
5758#define IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED 4
5759#define IPW2100_CRYPT_ERR_KEY_SET_FAILED 5
5760#define IPW2100_CRYPT_ERR_TX_KEY_SET_FAILED 6
5761#define IPW2100_CRYPT_ERR_CARD_CONF_FAILED 7
5762
5763#define IPW2100_CRYPT_ALG_NAME_LEN 16
5764
5765struct ipw2100_param {
5766 u32 cmd;
5767 u8 sta_addr[ETH_ALEN];
5768 union {
5769 struct {
5770 u8 name;
5771 u32 value;
5772 } wpa_param;
5773 struct {
5774 u32 len;
5775 u8 reserved[32];
5776 u8 data[0];
5777 } wpa_ie;
5778 struct {
5779 u32 command;
5780 u32 reason_code;
5781 } mlme;
5782 struct {
5783 u8 alg[IPW2100_CRYPT_ALG_NAME_LEN];
5784 u8 set_tx;
5785 u32 err;
5786 u8 idx;
5787 u8 seq[8]; /* sequence counter (set: RX, get: TX) */
5788 u16 key_len;
5789 u8 key[0];
5790 } crypt;
5791
5792 } u;
5793};
5794
5795/* end of driver_ipw.c code */
5796#endif /* WIRELESS_EXT < 18 */
5797
5798static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value)
5799{
5800 /* This is called when wpa_supplicant loads and closes the driver
5801 * interface. */
5802 priv->ieee->wpa_enabled = value;
5803 return 0;
5804}
5805
5806#if WIRELESS_EXT < 18
5807#define IW_AUTH_ALG_OPEN_SYSTEM 0x1
5808#define IW_AUTH_ALG_SHARED_KEY 0x2
5809#endif
5810
5811static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value)
5812{
5813
5814 struct ieee80211_device *ieee = priv->ieee;
5815 struct ieee80211_security sec = {
5816 .flags = SEC_AUTH_MODE,
5817 };
5818 int ret = 0;
5819
5820 if (value & IW_AUTH_ALG_SHARED_KEY) {
5821 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5822 ieee->open_wep = 0;
5823 } else if (value & IW_AUTH_ALG_OPEN_SYSTEM) {
5824 sec.auth_mode = WLAN_AUTH_OPEN;
5825 ieee->open_wep = 1;
5826 } else
5827 return -EINVAL;
5828
5829 if (ieee->set_security)
5830 ieee->set_security(ieee->dev, &sec);
5831 else
5832 ret = -EOPNOTSUPP;
5833
5834 return ret;
5835}
5836
5837void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5838 char *wpa_ie, int wpa_ie_len)
5839{
5840
5841 struct ipw2100_wpa_assoc_frame frame;
5842
5843 frame.fixed_ie_mask = 0;
5844
5845 /* copy WPA IE */
5846 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5847 frame.var_ie_len = wpa_ie_len;
5848
5849 /* make sure WPA is enabled */
5850 ipw2100_wpa_enable(priv, 1);
5851 ipw2100_set_wpa_ie(priv, &frame, 0);
5852}
5853
5854#if WIRELESS_EXT < 18
5855static int ipw2100_wpa_set_param(struct net_device *dev, u8 name, u32 value)
5856{
5857 struct ipw2100_priv *priv = ieee80211_priv(dev);
5858 struct ieee80211_crypt_data *crypt;
5859 unsigned long flags;
5860 int ret = 0;
5861
5862 switch (name) {
5863 case IPW2100_PARAM_WPA_ENABLED:
5864 ret = ipw2100_wpa_enable(priv, value);
5865 break;
5866
5867 case IPW2100_PARAM_TKIP_COUNTERMEASURES:
5868 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
5869 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) {
5870 IPW_DEBUG_WARNING("Can't set TKIP countermeasures: "
5871 "crypt not set!\n");
5872 break;
5873 }
5874
5875 flags = crypt->ops->get_flags(crypt->priv);
5876
5877 if (value)
5878 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
5879 else
5880 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
5881
5882 crypt->ops->set_flags(flags, crypt->priv);
5883
5884 break;
5885
5886 case IPW2100_PARAM_DROP_UNENCRYPTED:{
5887 /* See IW_AUTH_DROP_UNENCRYPTED handling for details */
5888 struct ieee80211_security sec = {
5889 .flags = SEC_ENABLED,
5890 .enabled = value,
5891 };
5892 priv->ieee->drop_unencrypted = value;
5893 /* We only change SEC_LEVEL for open mode. Others
5894 * are set by ipw_wpa_set_encryption.
5895 */
5896 if (!value) {
5897 sec.flags |= SEC_LEVEL;
5898 sec.level = SEC_LEVEL_0;
5899 } else {
5900 sec.flags |= SEC_LEVEL;
5901 sec.level = SEC_LEVEL_1;
5902 }
5903 if (priv->ieee->set_security)
5904 priv->ieee->set_security(priv->ieee->dev, &sec);
5905 break;
5906 }
5907
5908 case IPW2100_PARAM_PRIVACY_INVOKED:
5909 priv->ieee->privacy_invoked = value;
5910 break;
5911
5912 case IPW2100_PARAM_AUTH_ALGS:
5913 ret = ipw2100_wpa_set_auth_algs(priv, value);
5914 break;
5915
5916 case IPW2100_PARAM_IEEE_802_1X:
5917 priv->ieee->ieee802_1x = value;
5918 break;
5919
5920 default:
5921 printk(KERN_ERR DRV_NAME ": %s: Unknown WPA param: %d\n",
5922 dev->name, name);
5923 ret = -EOPNOTSUPP;
5924 }
5925
5926 return ret;
5927}
5928
5929static int ipw2100_wpa_mlme(struct net_device *dev, int command, int reason)
5930{
5931
5932 struct ipw2100_priv *priv = ieee80211_priv(dev);
5933 int ret = 0;
5934
5935 switch (command) {
5936 case IPW2100_MLME_STA_DEAUTH:
5937 // silently ignore
5938 break;
5939
5940 case IPW2100_MLME_STA_DISASSOC:
5941 ipw2100_disassociate_bssid(priv);
5942 break;
5943
5944 default:
5945 printk(KERN_ERR DRV_NAME ": %s: Unknown MLME request: %d\n",
5946 dev->name, command);
5947 ret = -EOPNOTSUPP;
5948 }
5949
5950 return ret;
5951}
5952
5953static int ipw2100_wpa_set_wpa_ie(struct net_device *dev,
5954 struct ipw2100_param *param, int plen)
5955{
5956
5957 struct ipw2100_priv *priv = ieee80211_priv(dev);
5958 struct ieee80211_device *ieee = priv->ieee;
5959 u8 *buf;
5960
5961 if (!ieee->wpa_enabled)
5962 return -EOPNOTSUPP;
5963
5964 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
5965 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
5966 return -EINVAL;
5967
5968 if (param->u.wpa_ie.len) {
5969 buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
5970 if (buf == NULL)
5971 return -ENOMEM;
5972
5973 memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
5974
5975 kfree(ieee->wpa_ie);
5976 ieee->wpa_ie = buf;
5977 ieee->wpa_ie_len = param->u.wpa_ie.len;
5978
5979 } else {
5980 kfree(ieee->wpa_ie);
5981 ieee->wpa_ie = NULL;
5982 ieee->wpa_ie_len = 0;
5983 }
5984
5985 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
5986
5987 return 0;
5988}
5989
5990/* implementation borrowed from hostap driver */
5991
5992static int ipw2100_wpa_set_encryption(struct net_device *dev,
5993 struct ipw2100_param *param,
5994 int param_len)
5995{
5996 int ret = 0;
5997 struct ipw2100_priv *priv = ieee80211_priv(dev);
5998 struct ieee80211_device *ieee = priv->ieee;
5999 struct ieee80211_crypto_ops *ops;
6000 struct ieee80211_crypt_data **crypt;
6001
6002 struct ieee80211_security sec = {
6003 .flags = 0,
6004 };
6005
6006 param->u.crypt.err = 0;
6007 param->u.crypt.alg[IPW2100_CRYPT_ALG_NAME_LEN - 1] = '\0';
6008
6009 if (param_len !=
6010 (int)((char *)param->u.crypt.key - (char *)param) +
6011 param->u.crypt.key_len) {
6012 IPW_DEBUG_INFO("Len mismatch %d, %d\n", param_len,
6013 param->u.crypt.key_len);
6014 return -EINVAL;
6015 }
6016 if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
6017 param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
6018 param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
6019 if (param->u.crypt.idx >= WEP_KEYS)
6020 return -EINVAL;
6021 crypt = &ieee->crypt[param->u.crypt.idx];
6022 } else {
6023 return -EINVAL;
6024 }
6025
6026 sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
6027 if (strcmp(param->u.crypt.alg, "none") == 0) {
6028 if (crypt) {
6029 sec.enabled = 0;
6030 sec.encrypt = 0;
6031 sec.level = SEC_LEVEL_0;
6032 sec.flags |= SEC_LEVEL;
6033 ieee80211_crypt_delayed_deinit(ieee, crypt);
6034 }
6035 goto done;
6036 }
6037 sec.enabled = 1;
6038 sec.encrypt = 1;
6039
6040 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6041 if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
6042 request_module("ieee80211_crypt_wep");
6043 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6044 } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
6045 request_module("ieee80211_crypt_tkip");
6046 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6047 } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
6048 request_module("ieee80211_crypt_ccmp");
6049 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6050 }
6051 if (ops == NULL) {
6052 IPW_DEBUG_INFO("%s: unknown crypto alg '%s'\n",
6053 dev->name, param->u.crypt.alg);
6054 param->u.crypt.err = IPW2100_CRYPT_ERR_UNKNOWN_ALG;
6055 ret = -EINVAL;
6056 goto done;
6057 }
6058
6059 if (*crypt == NULL || (*crypt)->ops != ops) {
6060 struct ieee80211_crypt_data *new_crypt;
6061
6062 ieee80211_crypt_delayed_deinit(ieee, crypt);
6063
6064 new_crypt = (struct ieee80211_crypt_data *)
6065 kmalloc(sizeof(struct ieee80211_crypt_data), GFP_KERNEL);
6066 if (new_crypt == NULL) {
6067 ret = -ENOMEM;
6068 goto done;
6069 }
6070 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
6071 new_crypt->ops = ops;
6072 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
6073 new_crypt->priv =
6074 new_crypt->ops->init(param->u.crypt.idx);
6075
6076 if (new_crypt->priv == NULL) {
6077 kfree(new_crypt);
6078 param->u.crypt.err =
6079 IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED;
6080 ret = -EINVAL;
6081 goto done;
6082 }
6083
6084 *crypt = new_crypt;
6085 }
6086
6087 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
6088 (*crypt)->ops->set_key(param->u.crypt.key,
6089 param->u.crypt.key_len, param->u.crypt.seq,
6090 (*crypt)->priv) < 0) {
6091 IPW_DEBUG_INFO("%s: key setting failed\n", dev->name);
6092 param->u.crypt.err = IPW2100_CRYPT_ERR_KEY_SET_FAILED;
6093 ret = -EINVAL;
6094 goto done;
6095 }
6096
6097 if (param->u.crypt.set_tx) {
6098 ieee->tx_keyidx = param->u.crypt.idx;
6099 sec.active_key = param->u.crypt.idx;
6100 sec.flags |= SEC_ACTIVE_KEY;
6101 }
6102
6103 if (ops->name != NULL) {
6104
6105 if (strcmp(ops->name, "WEP") == 0) {
6106 memcpy(sec.keys[param->u.crypt.idx],
6107 param->u.crypt.key, param->u.crypt.key_len);
6108 sec.key_sizes[param->u.crypt.idx] =
6109 param->u.crypt.key_len;
6110 sec.flags |= (1 << param->u.crypt.idx);
6111 sec.flags |= SEC_LEVEL;
6112 sec.level = SEC_LEVEL_1;
6113 } else if (strcmp(ops->name, "TKIP") == 0) {
6114 sec.flags |= SEC_LEVEL;
6115 sec.level = SEC_LEVEL_2;
6116 } else if (strcmp(ops->name, "CCMP") == 0) {
6117 sec.flags |= SEC_LEVEL;
6118 sec.level = SEC_LEVEL_3;
6119 }
6120 }
6121 done:
6122 if (ieee->set_security)
6123 ieee->set_security(ieee->dev, &sec);
6124
6125 /* Do not reset port if card is in Managed mode since resetting will
6126 * generate new IEEE 802.11 authentication which may end up in looping
6127 * with IEEE 802.1X. If your hardware requires a reset after WEP
6128 * configuration (for example... Prism2), implement the reset_port in
6129 * the callbacks structures used to initialize the 802.11 stack. */
6130 if (ieee->reset_on_keychange &&
6131 ieee->iw_mode != IW_MODE_INFRA &&
6132 ieee->reset_port && ieee->reset_port(dev)) {
6133 IPW_DEBUG_INFO("%s: reset_port failed\n", dev->name);
6134 param->u.crypt.err = IPW2100_CRYPT_ERR_CARD_CONF_FAILED;
6135 return -EINVAL;
6136 }
6137
6138 return ret;
6139}
6140
6141static int ipw2100_wpa_supplicant(struct net_device *dev, struct iw_point *p)
6142{
6143
6144 struct ipw2100_param *param;
6145 int ret = 0;
6146
6147 IPW_DEBUG_IOCTL("wpa_supplicant: len=%d\n", p->length);
6148
6149 if (p->length < sizeof(struct ipw2100_param) || !p->pointer)
6150 return -EINVAL;
6151
6152 param = (struct ipw2100_param *)kmalloc(p->length, GFP_KERNEL);
6153 if (param == NULL)
6154 return -ENOMEM;
6155
6156 if (copy_from_user(param, p->pointer, p->length)) {
6157 kfree(param);
6158 return -EFAULT;
6159 }
6160
6161 switch (param->cmd) {
6162
6163 case IPW2100_CMD_SET_WPA_PARAM:
6164 ret = ipw2100_wpa_set_param(dev, param->u.wpa_param.name,
6165 param->u.wpa_param.value);
6166 break;
6167
6168 case IPW2100_CMD_SET_WPA_IE:
6169 ret = ipw2100_wpa_set_wpa_ie(dev, param, p->length);
6170 break;
6171
6172 case IPW2100_CMD_SET_ENCRYPTION:
6173 ret = ipw2100_wpa_set_encryption(dev, param, p->length);
6174 break;
6175
6176 case IPW2100_CMD_MLME:
6177 ret = ipw2100_wpa_mlme(dev, param->u.mlme.command,
6178 param->u.mlme.reason_code);
6179 break;
6180
6181 default:
6182 printk(KERN_ERR DRV_NAME
6183 ": %s: Unknown WPA supplicant request: %d\n", dev->name,
6184 param->cmd);
6185 ret = -EOPNOTSUPP;
6186
6187 }
6188
6189 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
6190 ret = -EFAULT;
6191
6192 kfree(param);
6193 return ret;
6194}
6195
6196static int ipw2100_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
6197{
6198 struct iwreq *wrq = (struct iwreq *)rq;
6199 int ret = -1;
6200 switch (cmd) {
6201 case IPW2100_IOCTL_WPA_SUPPLICANT:
6202 ret = ipw2100_wpa_supplicant(dev, &wrq->u.data);
6203 return ret;
6204
6205 default:
6206 return -EOPNOTSUPP;
6207 }
6208
6209 return -EOPNOTSUPP;
6210}
6211#endif /* WIRELESS_EXT < 18 */
6212
6213static void ipw_ethtool_get_drvinfo(struct net_device *dev,
6214 struct ethtool_drvinfo *info)
6215{
6216 struct ipw2100_priv *priv = ieee80211_priv(dev);
6217 char fw_ver[64], ucode_ver[64];
6218
6219 strcpy(info->driver, DRV_NAME);
6220 strcpy(info->version, DRV_VERSION);
6221
6222 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
6223 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
6224
6225 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
6226 fw_ver, priv->eeprom_version, ucode_ver);
6227
6228 strcpy(info->bus_info, pci_name(priv->pci_dev));
6229}
6230
6231static u32 ipw2100_ethtool_get_link(struct net_device *dev)
6232{
6233 struct ipw2100_priv *priv = ieee80211_priv(dev);
6234 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
6235}
6236
6237static struct ethtool_ops ipw2100_ethtool_ops = {
6238 .get_link = ipw2100_ethtool_get_link,
6239 .get_drvinfo = ipw_ethtool_get_drvinfo,
6240};
6241
6242static void ipw2100_hang_check(void *adapter)
6243{
6244 struct ipw2100_priv *priv = adapter;
6245 unsigned long flags;
6246 u32 rtc = 0xa5a5a5a5;
6247 u32 len = sizeof(rtc);
6248 int restart = 0;
6249
6250 spin_lock_irqsave(&priv->low_lock, flags);
6251
6252 if (priv->fatal_error != 0) {
6253 /* If fatal_error is set then we need to restart */
6254 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
6255 priv->net_dev->name);
6256
6257 restart = 1;
6258 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
6259 (rtc == priv->last_rtc)) {
6260 /* Check if firmware is hung */
6261 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
6262 priv->net_dev->name);
6263
6264 restart = 1;
6265 }
6266
6267 if (restart) {
6268 /* Kill timer */
6269 priv->stop_hang_check = 1;
6270 priv->hangs++;
6271
6272 /* Restart the NIC */
6273 schedule_reset(priv);
6274 }
6275
6276 priv->last_rtc = rtc;
6277
6278 if (!priv->stop_hang_check)
6279 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
6280
6281 spin_unlock_irqrestore(&priv->low_lock, flags);
6282}
6283
6284static void ipw2100_rf_kill(void *adapter)
6285{
6286 struct ipw2100_priv *priv = adapter;
6287 unsigned long flags;
6288
6289 spin_lock_irqsave(&priv->low_lock, flags);
6290
6291 if (rf_kill_active(priv)) {
6292 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
6293 if (!priv->stop_rf_kill)
6294 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
6295 goto exit_unlock;
6296 }
6297
6298 /* RF Kill is now disabled, so bring the device back up */
6299
6300 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6301 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6302 "device\n");
6303 schedule_reset(priv);
6304 } else
6305 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
6306 "enabled\n");
6307
6308 exit_unlock:
6309 spin_unlock_irqrestore(&priv->low_lock, flags);
6310}
6311
6312static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
6313
6314/* Look into using netdev destructor to shutdown ieee80211? */
6315
6316static struct net_device *ipw2100_alloc_device(struct pci_dev *pci_dev,
6317 void __iomem * base_addr,
6318 unsigned long mem_start,
6319 unsigned long mem_len)
6320{
6321 struct ipw2100_priv *priv;
6322 struct net_device *dev;
6323
6324 dev = alloc_ieee80211(sizeof(struct ipw2100_priv));
6325 if (!dev)
6326 return NULL;
6327 priv = ieee80211_priv(dev);
6328 priv->ieee = netdev_priv(dev);
6329 priv->pci_dev = pci_dev;
6330 priv->net_dev = dev;
6331
6332 priv->ieee->hard_start_xmit = ipw2100_tx;
6333 priv->ieee->set_security = shim__set_security;
6334
6335 priv->ieee->perfect_rssi = -20;
6336 priv->ieee->worst_rssi = -85;
6337
6338 dev->open = ipw2100_open;
6339 dev->stop = ipw2100_close;
6340 dev->init = ipw2100_net_init;
6341#if WIRELESS_EXT < 18
6342 dev->do_ioctl = ipw2100_ioctl;
6343#endif
6344 dev->get_stats = ipw2100_stats;
6345 dev->ethtool_ops = &ipw2100_ethtool_ops;
6346 dev->tx_timeout = ipw2100_tx_timeout;
6347 dev->wireless_handlers = &ipw2100_wx_handler_def;
6348 dev->get_wireless_stats = ipw2100_wx_wireless_stats;
6349 dev->set_mac_address = ipw2100_set_address;
6350 dev->watchdog_timeo = 3 * HZ;
6351 dev->irq = 0;
6352
6353 dev->base_addr = (unsigned long)base_addr;
6354 dev->mem_start = mem_start;
6355 dev->mem_end = dev->mem_start + mem_len - 1;
6356
6357 /* NOTE: We don't use the wireless_handlers hook
6358 * in dev as the system will start throwing WX requests
6359 * to us before we're actually initialized and it just
6360 * ends up causing problems. So, we just handle
6361 * the WX extensions through the ipw2100_ioctl interface */
6362
6363 /* memset() puts everything to 0, so we only have explicitely set
6364 * those values that need to be something else */
6365
6366 /* If power management is turned on, default to AUTO mode */
6367 priv->power_mode = IPW_POWER_AUTO;
6368
6369#ifdef CONFIG_IPW2100_MONITOR
6370 priv->config |= CFG_CRC_CHECK;
6371#endif
6372 priv->ieee->wpa_enabled = 0;
6373 priv->ieee->drop_unencrypted = 0;
6374 priv->ieee->privacy_invoked = 0;
6375 priv->ieee->ieee802_1x = 1;
6376
6377 /* Set module parameters */
6378 switch (mode) {
6379 case 1:
6380 priv->ieee->iw_mode = IW_MODE_ADHOC;
6381 break;
6382#ifdef CONFIG_IPW2100_MONITOR
6383 case 2:
6384 priv->ieee->iw_mode = IW_MODE_MONITOR;
6385 break;
6386#endif
6387 default:
6388 case 0:
6389 priv->ieee->iw_mode = IW_MODE_INFRA;
6390 break;
6391 }
6392
6393 if (disable == 1)
6394 priv->status |= STATUS_RF_KILL_SW;
6395
6396 if (channel != 0 &&
6397 ((channel >= REG_MIN_CHANNEL) && (channel <= REG_MAX_CHANNEL))) {
6398 priv->config |= CFG_STATIC_CHANNEL;
6399 priv->channel = channel;
6400 }
6401
6402 if (associate)
6403 priv->config |= CFG_ASSOCIATE;
6404
6405 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6406 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6407 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6408 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6409 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6410 priv->tx_power = IPW_TX_POWER_DEFAULT;
6411 priv->tx_rates = DEFAULT_TX_RATES;
6412
6413 strcpy(priv->nick, "ipw2100");
6414
6415 spin_lock_init(&priv->low_lock);
6416 sema_init(&priv->action_sem, 1);
6417 sema_init(&priv->adapter_sem, 1);
6418
6419 init_waitqueue_head(&priv->wait_command_queue);
6420
6421 netif_carrier_off(dev);
6422
6423 INIT_LIST_HEAD(&priv->msg_free_list);
6424 INIT_LIST_HEAD(&priv->msg_pend_list);
6425 INIT_STAT(&priv->msg_free_stat);
6426 INIT_STAT(&priv->msg_pend_stat);
6427
6428 INIT_LIST_HEAD(&priv->tx_free_list);
6429 INIT_LIST_HEAD(&priv->tx_pend_list);
6430 INIT_STAT(&priv->tx_free_stat);
6431 INIT_STAT(&priv->tx_pend_stat);
6432
6433 INIT_LIST_HEAD(&priv->fw_pend_list);
6434 INIT_STAT(&priv->fw_pend_stat);
6435
6436 priv->workqueue = create_workqueue(DRV_NAME);
6437
6438 INIT_WORK(&priv->reset_work,
6439 (void (*)(void *))ipw2100_reset_adapter, priv);
6440 INIT_WORK(&priv->security_work,
6441 (void (*)(void *))ipw2100_security_work, priv);
6442 INIT_WORK(&priv->wx_event_work,
6443 (void (*)(void *))ipw2100_wx_event_work, priv);
6444 INIT_WORK(&priv->hang_check, ipw2100_hang_check, priv);
6445 INIT_WORK(&priv->rf_kill, ipw2100_rf_kill, priv);
6446
6447 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6448 ipw2100_irq_tasklet, (unsigned long)priv);
6449
6450 /* NOTE: We do not start the deferred work for status checks yet */
6451 priv->stop_rf_kill = 1;
6452 priv->stop_hang_check = 1;
6453
6454 return dev;
6455}
6456
6457static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6458 const struct pci_device_id *ent)
6459{
6460 unsigned long mem_start, mem_len, mem_flags;
6461 void __iomem *base_addr = NULL;
6462 struct net_device *dev = NULL;
6463 struct ipw2100_priv *priv = NULL;
6464 int err = 0;
6465 int registered = 0;
6466 u32 val;
6467
6468 IPW_DEBUG_INFO("enter\n");
6469
6470 mem_start = pci_resource_start(pci_dev, 0);
6471 mem_len = pci_resource_len(pci_dev, 0);
6472 mem_flags = pci_resource_flags(pci_dev, 0);
6473
6474 if ((mem_flags & IORESOURCE_MEM) != IORESOURCE_MEM) {
6475 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6476 err = -ENODEV;
6477 goto fail;
6478 }
6479
6480 base_addr = ioremap_nocache(mem_start, mem_len);
6481 if (!base_addr) {
6482 printk(KERN_WARNING DRV_NAME
6483 "Error calling ioremap_nocache.\n");
6484 err = -EIO;
6485 goto fail;
6486 }
6487
6488 /* allocate and initialize our net_device */
6489 dev = ipw2100_alloc_device(pci_dev, base_addr, mem_start, mem_len);
6490 if (!dev) {
6491 printk(KERN_WARNING DRV_NAME
6492 "Error calling ipw2100_alloc_device.\n");
6493 err = -ENOMEM;
6494 goto fail;
6495 }
6496
6497 /* set up PCI mappings for device */
6498 err = pci_enable_device(pci_dev);
6499 if (err) {
6500 printk(KERN_WARNING DRV_NAME
6501 "Error calling pci_enable_device.\n");
6502 return err;
6503 }
6504
6505 priv = ieee80211_priv(dev);
6506
6507 pci_set_master(pci_dev);
6508 pci_set_drvdata(pci_dev, priv);
6509
6510 err = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
6511 if (err) {
6512 printk(KERN_WARNING DRV_NAME
6513 "Error calling pci_set_dma_mask.\n");
6514 pci_disable_device(pci_dev);
6515 return err;
6516 }
6517
6518 err = pci_request_regions(pci_dev, DRV_NAME);
6519 if (err) {
6520 printk(KERN_WARNING DRV_NAME
6521 "Error calling pci_request_regions.\n");
6522 pci_disable_device(pci_dev);
6523 return err;
6524 }
6525
6526 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6527 * PCI Tx retries from interfering with C3 CPU state */
6528 pci_read_config_dword(pci_dev, 0x40, &val);
6529 if ((val & 0x0000ff00) != 0)
6530 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6531
6532 pci_set_power_state(pci_dev, PCI_D0);
6533
6534 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6535 printk(KERN_WARNING DRV_NAME
6536 "Device not found via register read.\n");
6537 err = -ENODEV;
6538 goto fail;
6539 }
6540
6541 SET_NETDEV_DEV(dev, &pci_dev->dev);
6542
6543 /* Force interrupts to be shut off on the device */
6544 priv->status |= STATUS_INT_ENABLED;
6545 ipw2100_disable_interrupts(priv);
6546
6547 /* Allocate and initialize the Tx/Rx queues and lists */
6548 if (ipw2100_queues_allocate(priv)) {
6549 printk(KERN_WARNING DRV_NAME
6550 "Error calilng ipw2100_queues_allocate.\n");
6551 err = -ENOMEM;
6552 goto fail;
6553 }
6554 ipw2100_queues_initialize(priv);
6555
6556 err = request_irq(pci_dev->irq,
6557 ipw2100_interrupt, SA_SHIRQ, dev->name, priv);
6558 if (err) {
6559 printk(KERN_WARNING DRV_NAME
6560 "Error calling request_irq: %d.\n", pci_dev->irq);
6561 goto fail;
6562 }
6563 dev->irq = pci_dev->irq;
6564
6565 IPW_DEBUG_INFO("Attempting to register device...\n");
6566
6567 SET_MODULE_OWNER(dev);
6568
6569 printk(KERN_INFO DRV_NAME
6570 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6571
6572 /* Bring up the interface. Pre 0.46, after we registered the
6573 * network device we would call ipw2100_up. This introduced a race
6574 * condition with newer hotplug configurations (network was coming
6575 * up and making calls before the device was initialized).
6576 *
6577 * If we called ipw2100_up before we registered the device, then the
6578 * device name wasn't registered. So, we instead use the net_dev->init
6579 * member to call a function that then just turns and calls ipw2100_up.
6580 * net_dev->init is called after name allocation but before the
6581 * notifier chain is called */
6582 down(&priv->action_sem);
6583 err = register_netdev(dev);
6584 if (err) {
6585 printk(KERN_WARNING DRV_NAME
6586 "Error calling register_netdev.\n");
6587 goto fail_unlock;
6588 }
6589 registered = 1;
6590
6591 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6592
6593 /* perform this after register_netdev so that dev->name is set */
6594 sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6595
6596 /* If the RF Kill switch is disabled, go ahead and complete the
6597 * startup sequence */
6598 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6599 /* Enable the adapter - sends HOST_COMPLETE */
6600 if (ipw2100_enable_adapter(priv)) {
6601 printk(KERN_WARNING DRV_NAME
6602 ": %s: failed in call to enable adapter.\n",
6603 priv->net_dev->name);
6604 ipw2100_hw_stop_adapter(priv);
6605 err = -EIO;
6606 goto fail_unlock;
6607 }
6608
6609 /* Start a scan . . . */
6610 ipw2100_set_scan_options(priv);
6611 ipw2100_start_scan(priv);
6612 }
6613
6614 IPW_DEBUG_INFO("exit\n");
6615
6616 priv->status |= STATUS_INITIALIZED;
6617
6618 up(&priv->action_sem);
6619
6620 return 0;
6621
6622 fail_unlock:
6623 up(&priv->action_sem);
6624
6625 fail:
6626 if (dev) {
6627 if (registered)
6628 unregister_netdev(dev);
6629
6630 ipw2100_hw_stop_adapter(priv);
6631
6632 ipw2100_disable_interrupts(priv);
6633
6634 if (dev->irq)
6635 free_irq(dev->irq, priv);
6636
6637 ipw2100_kill_workqueue(priv);
6638
6639 /* These are safe to call even if they weren't allocated */
6640 ipw2100_queues_free(priv);
6641 sysfs_remove_group(&pci_dev->dev.kobj,
6642 &ipw2100_attribute_group);
6643
6644 free_ieee80211(dev);
6645 pci_set_drvdata(pci_dev, NULL);
6646 }
6647
6648 if (base_addr)
6649 iounmap(base_addr);
6650
6651 pci_release_regions(pci_dev);
6652 pci_disable_device(pci_dev);
6653
6654 return err;
6655}
6656
6657static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6658{
6659 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6660 struct net_device *dev;
6661
6662 if (priv) {
6663 down(&priv->action_sem);
6664
6665 priv->status &= ~STATUS_INITIALIZED;
6666
6667 dev = priv->net_dev;
6668 sysfs_remove_group(&pci_dev->dev.kobj,
6669 &ipw2100_attribute_group);
6670
6671#ifdef CONFIG_PM
6672 if (ipw2100_firmware.version)
6673 ipw2100_release_firmware(priv, &ipw2100_firmware);
6674#endif
6675 /* Take down the hardware */
6676 ipw2100_down(priv);
6677
6678 /* Release the semaphore so that the network subsystem can
6679 * complete any needed calls into the driver... */
6680 up(&priv->action_sem);
6681
6682 /* Unregister the device first - this results in close()
6683 * being called if the device is open. If we free storage
6684 * first, then close() will crash. */
6685 unregister_netdev(dev);
6686
6687 /* ipw2100_down will ensure that there is no more pending work
6688 * in the workqueue's, so we can safely remove them now. */
6689 ipw2100_kill_workqueue(priv);
6690
6691 ipw2100_queues_free(priv);
6692
6693 /* Free potential debugging firmware snapshot */
6694 ipw2100_snapshot_free(priv);
6695
6696 if (dev->irq)
6697 free_irq(dev->irq, priv);
6698
6699 if (dev->base_addr)
6700 iounmap((void __iomem *)dev->base_addr);
6701
6702 free_ieee80211(dev);
6703 }
6704
6705 pci_release_regions(pci_dev);
6706 pci_disable_device(pci_dev);
6707
6708 IPW_DEBUG_INFO("exit\n");
6709}
6710
6711#ifdef CONFIG_PM
6712static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
6713{
6714 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6715 struct net_device *dev = priv->net_dev;
6716
6717 IPW_DEBUG_INFO("%s: Going into suspend...\n", dev->name);
6718
6719 down(&priv->action_sem);
6720 if (priv->status & STATUS_INITIALIZED) {
6721 /* Take down the device; powers it off, etc. */
6722 ipw2100_down(priv);
6723 }
6724
6725 /* Remove the PRESENT state of the device */
6726 netif_device_detach(dev);
6727
6728 pci_save_state(pci_dev);
6729 pci_disable_device(pci_dev);
6730 pci_set_power_state(pci_dev, PCI_D3hot);
6731
6732 up(&priv->action_sem);
6733
6734 return 0;
6735}
6736
6737static int ipw2100_resume(struct pci_dev *pci_dev)
6738{
6739 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6740 struct net_device *dev = priv->net_dev;
6741 u32 val;
6742
6743 if (IPW2100_PM_DISABLED)
6744 return 0;
6745
6746 down(&priv->action_sem);
6747
6748 IPW_DEBUG_INFO("%s: Coming out of suspend...\n", dev->name);
6749
6750 pci_set_power_state(pci_dev, PCI_D0);
6751 pci_enable_device(pci_dev);
6752 pci_restore_state(pci_dev);
6753
6754 /*
6755 * Suspend/Resume resets the PCI configuration space, so we have to
6756 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6757 * from interfering with C3 CPU state. pci_restore_state won't help
6758 * here since it only restores the first 64 bytes pci config header.
6759 */
6760 pci_read_config_dword(pci_dev, 0x40, &val);
6761 if ((val & 0x0000ff00) != 0)
6762 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6763
6764 /* Set the device back into the PRESENT state; this will also wake
6765 * the queue of needed */
6766 netif_device_attach(dev);
6767
6768 /* Bring the device back up */
6769 if (!(priv->status & STATUS_RF_KILL_SW))
6770 ipw2100_up(priv, 0);
6771
6772 up(&priv->action_sem);
6773
6774 return 0;
6775}
6776#endif
6777
6778#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6779
6780static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = {
6781 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6782 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6783 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6784 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6785 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6786 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6787 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6788 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6789 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6790 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6791 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6792 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6793 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6794
6795 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6796 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6797 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6798 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6799 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6800
6801 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6802 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6803 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6804 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6805 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6806 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6807 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6808
6809 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6810
6811 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6812 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6813 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6814 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6815 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6816 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6817 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6818
6819 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6820 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6821 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6822 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6823 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6824 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6825
6826 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6827 {0,},
6828};
6829
6830MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6831
6832static struct pci_driver ipw2100_pci_driver = {
6833 .name = DRV_NAME,
6834 .id_table = ipw2100_pci_id_table,
6835 .probe = ipw2100_pci_init_one,
6836 .remove = __devexit_p(ipw2100_pci_remove_one),
6837#ifdef CONFIG_PM
6838 .suspend = ipw2100_suspend,
6839 .resume = ipw2100_resume,
6840#endif
6841};
6842
6843/**
6844 * Initialize the ipw2100 driver/module
6845 *
6846 * @returns 0 if ok, < 0 errno node con error.
6847 *
6848 * Note: we cannot init the /proc stuff until the PCI driver is there,
6849 * or we risk an unlikely race condition on someone accessing
6850 * uninitialized data in the PCI dev struct through /proc.
6851 */
6852static int __init ipw2100_init(void)
6853{
6854 int ret;
6855
6856 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6857 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6858
6859 ret = pci_module_init(&ipw2100_pci_driver);
6860
6861#ifdef CONFIG_IPW_DEBUG
6862 ipw2100_debug_level = debug;
6863 driver_create_file(&ipw2100_pci_driver.driver,
6864 &driver_attr_debug_level);
6865#endif
6866
6867 return ret;
6868}
6869
6870/**
6871 * Cleanup ipw2100 driver registration
6872 */
6873static void __exit ipw2100_exit(void)
6874{
6875 /* FIXME: IPG: check that we have no instances of the devices open */
6876#ifdef CONFIG_IPW_DEBUG
6877 driver_remove_file(&ipw2100_pci_driver.driver,
6878 &driver_attr_debug_level);
6879#endif
6880 pci_unregister_driver(&ipw2100_pci_driver);
6881}
6882
6883module_init(ipw2100_init);
6884module_exit(ipw2100_exit);
6885
6886#define WEXT_USECHANNELS 1
6887
6888static const long ipw2100_frequencies[] = {
6889 2412, 2417, 2422, 2427,
6890 2432, 2437, 2442, 2447,
6891 2452, 2457, 2462, 2467,
6892 2472, 2484
6893};
6894
6895#define FREQ_COUNT (sizeof(ipw2100_frequencies) / \
6896 sizeof(ipw2100_frequencies[0]))
6897
6898static const long ipw2100_rates_11b[] = {
6899 1000000,
6900 2000000,
6901 5500000,
6902 11000000
6903};
6904
6905#define RATE_COUNT (sizeof(ipw2100_rates_11b) / sizeof(ipw2100_rates_11b[0]))
6906
6907static int ipw2100_wx_get_name(struct net_device *dev,
6908 struct iw_request_info *info,
6909 union iwreq_data *wrqu, char *extra)
6910{
6911 /*
6912 * This can be called at any time. No action lock required
6913 */
6914
6915 struct ipw2100_priv *priv = ieee80211_priv(dev);
6916 if (!(priv->status & STATUS_ASSOCIATED))
6917 strcpy(wrqu->name, "unassociated");
6918 else
6919 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6920
6921 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6922 return 0;
6923}
6924
6925static int ipw2100_wx_set_freq(struct net_device *dev,
6926 struct iw_request_info *info,
6927 union iwreq_data *wrqu, char *extra)
6928{
6929 struct ipw2100_priv *priv = ieee80211_priv(dev);
6930 struct iw_freq *fwrq = &wrqu->freq;
6931 int err = 0;
6932
6933 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6934 return -EOPNOTSUPP;
6935
6936 down(&priv->action_sem);
6937 if (!(priv->status & STATUS_INITIALIZED)) {
6938 err = -EIO;
6939 goto done;
6940 }
6941
6942 /* if setting by freq convert to channel */
6943 if (fwrq->e == 1) {
6944 if ((fwrq->m >= (int)2.412e8 && fwrq->m <= (int)2.487e8)) {
6945 int f = fwrq->m / 100000;
6946 int c = 0;
6947
6948 while ((c < REG_MAX_CHANNEL) &&
6949 (f != ipw2100_frequencies[c]))
6950 c++;
6951
6952 /* hack to fall through */
6953 fwrq->e = 0;
6954 fwrq->m = c + 1;
6955 }
6956 }
6957
6958 if (fwrq->e > 0 || fwrq->m > 1000) {
6959 err = -EOPNOTSUPP;
6960 goto done;
6961 } else { /* Set the channel */
6962 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
6963 err = ipw2100_set_channel(priv, fwrq->m, 0);
6964 }
6965
6966 done:
6967 up(&priv->action_sem);
6968 return err;
6969}
6970
6971static int ipw2100_wx_get_freq(struct net_device *dev,
6972 struct iw_request_info *info,
6973 union iwreq_data *wrqu, char *extra)
6974{
6975 /*
6976 * This can be called at any time. No action lock required
6977 */
6978
6979 struct ipw2100_priv *priv = ieee80211_priv(dev);
6980
6981 wrqu->freq.e = 0;
6982
6983 /* If we are associated, trying to associate, or have a statically
6984 * configured CHANNEL then return that; otherwise return ANY */
6985 if (priv->config & CFG_STATIC_CHANNEL ||
6986 priv->status & STATUS_ASSOCIATED)
6987 wrqu->freq.m = priv->channel;
6988 else
6989 wrqu->freq.m = 0;
6990
6991 IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
6992 return 0;
6993
6994}
6995
6996static int ipw2100_wx_set_mode(struct net_device *dev,
6997 struct iw_request_info *info,
6998 union iwreq_data *wrqu, char *extra)
6999{
7000 struct ipw2100_priv *priv = ieee80211_priv(dev);
7001 int err = 0;
7002
7003 IPW_DEBUG_WX("SET Mode -> %d \n", wrqu->mode);
7004
7005 if (wrqu->mode == priv->ieee->iw_mode)
7006 return 0;
7007
7008 down(&priv->action_sem);
7009 if (!(priv->status & STATUS_INITIALIZED)) {
7010 err = -EIO;
7011 goto done;
7012 }
7013
7014 switch (wrqu->mode) {
7015#ifdef CONFIG_IPW2100_MONITOR
7016 case IW_MODE_MONITOR:
7017 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7018 break;
7019#endif /* CONFIG_IPW2100_MONITOR */
7020 case IW_MODE_ADHOC:
7021 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
7022 break;
7023 case IW_MODE_INFRA:
7024 case IW_MODE_AUTO:
7025 default:
7026 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
7027 break;
7028 }
7029
7030 done:
7031 up(&priv->action_sem);
7032 return err;
7033}
7034
7035static int ipw2100_wx_get_mode(struct net_device *dev,
7036 struct iw_request_info *info,
7037 union iwreq_data *wrqu, char *extra)
7038{
7039 /*
7040 * This can be called at any time. No action lock required
7041 */
7042
7043 struct ipw2100_priv *priv = ieee80211_priv(dev);
7044
7045 wrqu->mode = priv->ieee->iw_mode;
7046 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
7047
7048 return 0;
7049}
7050
7051#define POWER_MODES 5
7052
7053/* Values are in microsecond */
7054static const s32 timeout_duration[POWER_MODES] = {
7055 350000,
7056 250000,
7057 75000,
7058 37000,
7059 25000,
7060};
7061
7062static const s32 period_duration[POWER_MODES] = {
7063 400000,
7064 700000,
7065 1000000,
7066 1000000,
7067 1000000
7068};
7069
7070static int ipw2100_wx_get_range(struct net_device *dev,
7071 struct iw_request_info *info,
7072 union iwreq_data *wrqu, char *extra)
7073{
7074 /*
7075 * This can be called at any time. No action lock required
7076 */
7077
7078 struct ipw2100_priv *priv = ieee80211_priv(dev);
7079 struct iw_range *range = (struct iw_range *)extra;
7080 u16 val;
7081 int i, level;
7082
7083 wrqu->data.length = sizeof(*range);
7084 memset(range, 0, sizeof(*range));
7085
7086 /* Let's try to keep this struct in the same order as in
7087 * linux/include/wireless.h
7088 */
7089
7090 /* TODO: See what values we can set, and remove the ones we can't
7091 * set, or fill them with some default data.
7092 */
7093
7094 /* ~5 Mb/s real (802.11b) */
7095 range->throughput = 5 * 1000 * 1000;
7096
7097// range->sensitivity; /* signal level threshold range */
7098
7099 range->max_qual.qual = 100;
7100 /* TODO: Find real max RSSI and stick here */
7101 range->max_qual.level = 0;
7102 range->max_qual.noise = 0;
7103 range->max_qual.updated = 7; /* Updated all three */
7104
7105 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
7106 /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
7107 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
7108 range->avg_qual.noise = 0;
7109 range->avg_qual.updated = 7; /* Updated all three */
7110
7111 range->num_bitrates = RATE_COUNT;
7112
7113 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
7114 range->bitrate[i] = ipw2100_rates_11b[i];
7115 }
7116
7117 range->min_rts = MIN_RTS_THRESHOLD;
7118 range->max_rts = MAX_RTS_THRESHOLD;
7119 range->min_frag = MIN_FRAG_THRESHOLD;
7120 range->max_frag = MAX_FRAG_THRESHOLD;
7121
7122 range->min_pmp = period_duration[0]; /* Minimal PM period */
7123 range->max_pmp = period_duration[POWER_MODES - 1]; /* Maximal PM period */
7124 range->min_pmt = timeout_duration[POWER_MODES - 1]; /* Minimal PM timeout */
7125 range->max_pmt = timeout_duration[0]; /* Maximal PM timeout */
7126
7127 /* How to decode max/min PM period */
7128 range->pmp_flags = IW_POWER_PERIOD;
7129 /* How to decode max/min PM period */
7130 range->pmt_flags = IW_POWER_TIMEOUT;
7131 /* What PM options are supported */
7132 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
7133
7134 range->encoding_size[0] = 5;
7135 range->encoding_size[1] = 13; /* Different token sizes */
7136 range->num_encoding_sizes = 2; /* Number of entry in the list */
7137 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
7138// range->encoding_login_index; /* token index for login token */
7139
7140 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7141 range->txpower_capa = IW_TXPOW_DBM;
7142 range->num_txpower = IW_MAX_TXPOWER;
7143 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16);
7144 i < IW_MAX_TXPOWER;
7145 i++, level -=
7146 ((IPW_TX_POWER_MAX_DBM -
7147 IPW_TX_POWER_MIN_DBM) * 16) / (IW_MAX_TXPOWER - 1))
7148 range->txpower[i] = level / 16;
7149 } else {
7150 range->txpower_capa = 0;
7151 range->num_txpower = 0;
7152 }
7153
7154 /* Set the Wireless Extension versions */
7155 range->we_version_compiled = WIRELESS_EXT;
7156 range->we_version_source = 16;
7157
7158// range->retry_capa; /* What retry options are supported */
7159// range->retry_flags; /* How to decode max/min retry limit */
7160// range->r_time_flags; /* How to decode max/min retry life */
7161// range->min_retry; /* Minimal number of retries */
7162// range->max_retry; /* Maximal number of retries */
7163// range->min_r_time; /* Minimal retry lifetime */
7164// range->max_r_time; /* Maximal retry lifetime */
7165
7166 range->num_channels = FREQ_COUNT;
7167
7168 val = 0;
7169 for (i = 0; i < FREQ_COUNT; i++) {
7170 // TODO: Include only legal frequencies for some countries
7171// if (local->channel_mask & (1 << i)) {
7172 range->freq[val].i = i + 1;
7173 range->freq[val].m = ipw2100_frequencies[i] * 100000;
7174 range->freq[val].e = 1;
7175 val++;
7176// }
7177 if (val == IW_MAX_FREQUENCIES)
7178 break;
7179 }
7180 range->num_frequency = val;
7181
7182 IPW_DEBUG_WX("GET Range\n");
7183
7184 return 0;
7185}
7186
7187static int ipw2100_wx_set_wap(struct net_device *dev,
7188 struct iw_request_info *info,
7189 union iwreq_data *wrqu, char *extra)
7190{
7191 struct ipw2100_priv *priv = ieee80211_priv(dev);
7192 int err = 0;
7193
7194 static const unsigned char any[] = {
7195 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7196 };
7197 static const unsigned char off[] = {
7198 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7199 };
7200
7201 // sanity checks
7202 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
7203 return -EINVAL;
7204
7205 down(&priv->action_sem);
7206 if (!(priv->status & STATUS_INITIALIZED)) {
7207 err = -EIO;
7208 goto done;
7209 }
7210
7211 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
7212 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
7213 /* we disable mandatory BSSID association */
7214 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
7215 priv->config &= ~CFG_STATIC_BSSID;
7216 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
7217 goto done;
7218 }
7219
7220 priv->config |= CFG_STATIC_BSSID;
7221 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
7222
7223 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
7224
7225 IPW_DEBUG_WX("SET BSSID -> %02X:%02X:%02X:%02X:%02X:%02X\n",
7226 wrqu->ap_addr.sa_data[0] & 0xff,
7227 wrqu->ap_addr.sa_data[1] & 0xff,
7228 wrqu->ap_addr.sa_data[2] & 0xff,
7229 wrqu->ap_addr.sa_data[3] & 0xff,
7230 wrqu->ap_addr.sa_data[4] & 0xff,
7231 wrqu->ap_addr.sa_data[5] & 0xff);
7232
7233 done:
7234 up(&priv->action_sem);
7235 return err;
7236}
7237
7238static int ipw2100_wx_get_wap(struct net_device *dev,
7239 struct iw_request_info *info,
7240 union iwreq_data *wrqu, char *extra)
7241{
7242 /*
7243 * This can be called at any time. No action lock required
7244 */
7245
7246 struct ipw2100_priv *priv = ieee80211_priv(dev);
7247
7248 /* If we are associated, trying to associate, or have a statically
7249 * configured BSSID then return that; otherwise return ANY */
7250 if (priv->config & CFG_STATIC_BSSID || priv->status & STATUS_ASSOCIATED) {
7251 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
7252 memcpy(wrqu->ap_addr.sa_data, priv->bssid, ETH_ALEN);
7253 } else
7254 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
7255
7256 IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
7257 MAC_ARG(wrqu->ap_addr.sa_data));
7258 return 0;
7259}
7260
7261static int ipw2100_wx_set_essid(struct net_device *dev,
7262 struct iw_request_info *info,
7263 union iwreq_data *wrqu, char *extra)
7264{
7265 struct ipw2100_priv *priv = ieee80211_priv(dev);
7266 char *essid = ""; /* ANY */
7267 int length = 0;
7268 int err = 0;
7269
7270 down(&priv->action_sem);
7271 if (!(priv->status & STATUS_INITIALIZED)) {
7272 err = -EIO;
7273 goto done;
7274 }
7275
7276 if (wrqu->essid.flags && wrqu->essid.length) {
7277 length = wrqu->essid.length - 1;
7278 essid = extra;
7279 }
7280
7281 if (length == 0) {
7282 IPW_DEBUG_WX("Setting ESSID to ANY\n");
7283 priv->config &= ~CFG_STATIC_ESSID;
7284 err = ipw2100_set_essid(priv, NULL, 0, 0);
7285 goto done;
7286 }
7287
7288 length = min(length, IW_ESSID_MAX_SIZE);
7289
7290 priv->config |= CFG_STATIC_ESSID;
7291
7292 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
7293 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
7294 err = 0;
7295 goto done;
7296 }
7297
7298 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
7299 length);
7300
7301 priv->essid_len = length;
7302 memcpy(priv->essid, essid, priv->essid_len);
7303
7304 err = ipw2100_set_essid(priv, essid, length, 0);
7305
7306 done:
7307 up(&priv->action_sem);
7308 return err;
7309}
7310
7311static int ipw2100_wx_get_essid(struct net_device *dev,
7312 struct iw_request_info *info,
7313 union iwreq_data *wrqu, char *extra)
7314{
7315 /*
7316 * This can be called at any time. No action lock required
7317 */
7318
7319 struct ipw2100_priv *priv = ieee80211_priv(dev);
7320
7321 /* If we are associated, trying to associate, or have a statically
7322 * configured ESSID then return that; otherwise return ANY */
7323 if (priv->config & CFG_STATIC_ESSID || priv->status & STATUS_ASSOCIATED) {
7324 IPW_DEBUG_WX("Getting essid: '%s'\n",
7325 escape_essid(priv->essid, priv->essid_len));
7326 memcpy(extra, priv->essid, priv->essid_len);
7327 wrqu->essid.length = priv->essid_len;
7328 wrqu->essid.flags = 1; /* active */
7329 } else {
7330 IPW_DEBUG_WX("Getting essid: ANY\n");
7331 wrqu->essid.length = 0;
7332 wrqu->essid.flags = 0; /* active */
7333 }
7334
7335 return 0;
7336}
7337
7338static int ipw2100_wx_set_nick(struct net_device *dev,
7339 struct iw_request_info *info,
7340 union iwreq_data *wrqu, char *extra)
7341{
7342 /*
7343 * This can be called at any time. No action lock required
7344 */
7345
7346 struct ipw2100_priv *priv = ieee80211_priv(dev);
7347
7348 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7349 return -E2BIG;
7350
7351 wrqu->data.length = min((size_t) wrqu->data.length, sizeof(priv->nick));
7352 memset(priv->nick, 0, sizeof(priv->nick));
7353 memcpy(priv->nick, extra, wrqu->data.length);
7354
7355 IPW_DEBUG_WX("SET Nickname -> %s \n", priv->nick);
7356
7357 return 0;
7358}
7359
7360static int ipw2100_wx_get_nick(struct net_device *dev,
7361 struct iw_request_info *info,
7362 union iwreq_data *wrqu, char *extra)
7363{
7364 /*
7365 * This can be called at any time. No action lock required
7366 */
7367
7368 struct ipw2100_priv *priv = ieee80211_priv(dev);
7369
7370 wrqu->data.length = strlen(priv->nick) + 1;
7371 memcpy(extra, priv->nick, wrqu->data.length);
7372 wrqu->data.flags = 1; /* active */
7373
7374 IPW_DEBUG_WX("GET Nickname -> %s \n", extra);
7375
7376 return 0;
7377}
7378
7379static int ipw2100_wx_set_rate(struct net_device *dev,
7380 struct iw_request_info *info,
7381 union iwreq_data *wrqu, char *extra)
7382{
7383 struct ipw2100_priv *priv = ieee80211_priv(dev);
7384 u32 target_rate = wrqu->bitrate.value;
7385 u32 rate;
7386 int err = 0;
7387
7388 down(&priv->action_sem);
7389 if (!(priv->status & STATUS_INITIALIZED)) {
7390 err = -EIO;
7391 goto done;
7392 }
7393
7394 rate = 0;
7395
7396 if (target_rate == 1000000 ||
7397 (!wrqu->bitrate.fixed && target_rate > 1000000))
7398 rate |= TX_RATE_1_MBIT;
7399 if (target_rate == 2000000 ||
7400 (!wrqu->bitrate.fixed && target_rate > 2000000))
7401 rate |= TX_RATE_2_MBIT;
7402 if (target_rate == 5500000 ||
7403 (!wrqu->bitrate.fixed && target_rate > 5500000))
7404 rate |= TX_RATE_5_5_MBIT;
7405 if (target_rate == 11000000 ||
7406 (!wrqu->bitrate.fixed && target_rate > 11000000))
7407 rate |= TX_RATE_11_MBIT;
7408 if (rate == 0)
7409 rate = DEFAULT_TX_RATES;
7410
7411 err = ipw2100_set_tx_rates(priv, rate, 0);
7412
7413 IPW_DEBUG_WX("SET Rate -> %04X \n", rate);
7414 done:
7415 up(&priv->action_sem);
7416 return err;
7417}
7418
7419static int ipw2100_wx_get_rate(struct net_device *dev,
7420 struct iw_request_info *info,
7421 union iwreq_data *wrqu, char *extra)
7422{
7423 struct ipw2100_priv *priv = ieee80211_priv(dev);
7424 int val;
7425 int len = sizeof(val);
7426 int err = 0;
7427
7428 if (!(priv->status & STATUS_ENABLED) ||
7429 priv->status & STATUS_RF_KILL_MASK ||
7430 !(priv->status & STATUS_ASSOCIATED)) {
7431 wrqu->bitrate.value = 0;
7432 return 0;
7433 }
7434
7435 down(&priv->action_sem);
7436 if (!(priv->status & STATUS_INITIALIZED)) {
7437 err = -EIO;
7438 goto done;
7439 }
7440
7441 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7442 if (err) {
7443 IPW_DEBUG_WX("failed querying ordinals.\n");
7444 return err;
7445 }
7446
7447 switch (val & TX_RATE_MASK) {
7448 case TX_RATE_1_MBIT:
7449 wrqu->bitrate.value = 1000000;
7450 break;
7451 case TX_RATE_2_MBIT:
7452 wrqu->bitrate.value = 2000000;
7453 break;
7454 case TX_RATE_5_5_MBIT:
7455 wrqu->bitrate.value = 5500000;
7456 break;
7457 case TX_RATE_11_MBIT:
7458 wrqu->bitrate.value = 11000000;
7459 break;
7460 default:
7461 wrqu->bitrate.value = 0;
7462 }
7463
7464 IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
7465
7466 done:
7467 up(&priv->action_sem);
7468 return err;
7469}
7470
7471static int ipw2100_wx_set_rts(struct net_device *dev,
7472 struct iw_request_info *info,
7473 union iwreq_data *wrqu, char *extra)
7474{
7475 struct ipw2100_priv *priv = ieee80211_priv(dev);
7476 int value, err;
7477
7478 /* Auto RTS not yet supported */
7479 if (wrqu->rts.fixed == 0)
7480 return -EINVAL;
7481
7482 down(&priv->action_sem);
7483 if (!(priv->status & STATUS_INITIALIZED)) {
7484 err = -EIO;
7485 goto done;
7486 }
7487
7488 if (wrqu->rts.disabled)
7489 value = priv->rts_threshold | RTS_DISABLED;
7490 else {
7491 if (wrqu->rts.value < 1 || wrqu->rts.value > 2304) {
7492 err = -EINVAL;
7493 goto done;
7494 }
7495 value = wrqu->rts.value;
7496 }
7497
7498 err = ipw2100_set_rts_threshold(priv, value);
7499
7500 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X \n", value);
7501 done:
7502 up(&priv->action_sem);
7503 return err;
7504}
7505
7506static int ipw2100_wx_get_rts(struct net_device *dev,
7507 struct iw_request_info *info,
7508 union iwreq_data *wrqu, char *extra)
7509{
7510 /*
7511 * This can be called at any time. No action lock required
7512 */
7513
7514 struct ipw2100_priv *priv = ieee80211_priv(dev);
7515
7516 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7517 wrqu->rts.fixed = 1; /* no auto select */
7518
7519 /* If RTS is set to the default value, then it is disabled */
7520 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7521
7522 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X \n", wrqu->rts.value);
7523
7524 return 0;
7525}
7526
7527static int ipw2100_wx_set_txpow(struct net_device *dev,
7528 struct iw_request_info *info,
7529 union iwreq_data *wrqu, char *extra)
7530{
7531 struct ipw2100_priv *priv = ieee80211_priv(dev);
7532 int err = 0, value;
7533
7534 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7535 return -EINVAL;
7536
7537 if (wrqu->txpower.disabled == 1 || wrqu->txpower.fixed == 0)
7538 value = IPW_TX_POWER_DEFAULT;
7539 else {
7540 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7541 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7542 return -EINVAL;
7543
7544 value = wrqu->txpower.value;
7545 }
7546
7547 down(&priv->action_sem);
7548 if (!(priv->status & STATUS_INITIALIZED)) {
7549 err = -EIO;
7550 goto done;
7551 }
7552
7553 err = ipw2100_set_tx_power(priv, value);
7554
7555 IPW_DEBUG_WX("SET TX Power -> %d \n", value);
7556
7557 done:
7558 up(&priv->action_sem);
7559 return err;
7560}
7561
7562static int ipw2100_wx_get_txpow(struct net_device *dev,
7563 struct iw_request_info *info,
7564 union iwreq_data *wrqu, char *extra)
7565{
7566 /*
7567 * This can be called at any time. No action lock required
7568 */
7569
7570 struct ipw2100_priv *priv = ieee80211_priv(dev);
7571
7572 if (priv->ieee->iw_mode != IW_MODE_ADHOC) {
7573 wrqu->power.disabled = 1;
7574 return 0;
7575 }
7576
7577 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7578 wrqu->power.fixed = 0;
7579 wrqu->power.value = IPW_TX_POWER_MAX_DBM;
7580 wrqu->power.disabled = 1;
7581 } else {
7582 wrqu->power.disabled = 0;
7583 wrqu->power.fixed = 1;
7584 wrqu->power.value = priv->tx_power;
7585 }
7586
7587 wrqu->power.flags = IW_TXPOW_DBM;
7588
7589 IPW_DEBUG_WX("GET TX Power -> %d \n", wrqu->power.value);
7590
7591 return 0;
7592}
7593
7594static int ipw2100_wx_set_frag(struct net_device *dev,
7595 struct iw_request_info *info,
7596 union iwreq_data *wrqu, char *extra)
7597{
7598 /*
7599 * This can be called at any time. No action lock required
7600 */
7601
7602 struct ipw2100_priv *priv = ieee80211_priv(dev);
7603
7604 if (!wrqu->frag.fixed)
7605 return -EINVAL;
7606
7607 if (wrqu->frag.disabled) {
7608 priv->frag_threshold |= FRAG_DISABLED;
7609 priv->ieee->fts = DEFAULT_FTS;
7610 } else {
7611 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7612 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7613 return -EINVAL;
7614
7615 priv->ieee->fts = wrqu->frag.value & ~0x1;
7616 priv->frag_threshold = priv->ieee->fts;
7617 }
7618
7619 IPW_DEBUG_WX("SET Frag Threshold -> %d \n", priv->ieee->fts);
7620
7621 return 0;
7622}
7623
7624static int ipw2100_wx_get_frag(struct net_device *dev,
7625 struct iw_request_info *info,
7626 union iwreq_data *wrqu, char *extra)
7627{
7628 /*
7629 * This can be called at any time. No action lock required
7630 */
7631
7632 struct ipw2100_priv *priv = ieee80211_priv(dev);
7633 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7634 wrqu->frag.fixed = 0; /* no auto select */
7635 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7636
7637 IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
7638
7639 return 0;
7640}
7641
7642static int ipw2100_wx_set_retry(struct net_device *dev,
7643 struct iw_request_info *info,
7644 union iwreq_data *wrqu, char *extra)
7645{
7646 struct ipw2100_priv *priv = ieee80211_priv(dev);
7647 int err = 0;
7648
7649 if (wrqu->retry.flags & IW_RETRY_LIFETIME || wrqu->retry.disabled)
7650 return -EINVAL;
7651
7652 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7653 return 0;
7654
7655 down(&priv->action_sem);
7656 if (!(priv->status & STATUS_INITIALIZED)) {
7657 err = -EIO;
7658 goto done;
7659 }
7660
7661 if (wrqu->retry.flags & IW_RETRY_MIN) {
7662 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7663 IPW_DEBUG_WX("SET Short Retry Limit -> %d \n",
7664 wrqu->retry.value);
7665 goto done;
7666 }
7667
7668 if (wrqu->retry.flags & IW_RETRY_MAX) {
7669 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7670 IPW_DEBUG_WX("SET Long Retry Limit -> %d \n",
7671 wrqu->retry.value);
7672 goto done;
7673 }
7674
7675 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7676 if (!err)
7677 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7678
7679 IPW_DEBUG_WX("SET Both Retry Limits -> %d \n", wrqu->retry.value);
7680
7681 done:
7682 up(&priv->action_sem);
7683 return err;
7684}
7685
7686static int ipw2100_wx_get_retry(struct net_device *dev,
7687 struct iw_request_info *info,
7688 union iwreq_data *wrqu, char *extra)
7689{
7690 /*
7691 * This can be called at any time. No action lock required
7692 */
7693
7694 struct ipw2100_priv *priv = ieee80211_priv(dev);
7695
7696 wrqu->retry.disabled = 0; /* can't be disabled */
7697
7698 if ((wrqu->retry.flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME)
7699 return -EINVAL;
7700
7701 if (wrqu->retry.flags & IW_RETRY_MAX) {
7702 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
7703 wrqu->retry.value = priv->long_retry_limit;
7704 } else {
7705 wrqu->retry.flags =
7706 (priv->short_retry_limit !=
7707 priv->long_retry_limit) ?
7708 IW_RETRY_LIMIT | IW_RETRY_MIN : IW_RETRY_LIMIT;
7709
7710 wrqu->retry.value = priv->short_retry_limit;
7711 }
7712
7713 IPW_DEBUG_WX("GET Retry -> %d \n", wrqu->retry.value);
7714
7715 return 0;
7716}
7717
7718static int ipw2100_wx_set_scan(struct net_device *dev,
7719 struct iw_request_info *info,
7720 union iwreq_data *wrqu, char *extra)
7721{
7722 struct ipw2100_priv *priv = ieee80211_priv(dev);
7723 int err = 0;
7724
7725 down(&priv->action_sem);
7726 if (!(priv->status & STATUS_INITIALIZED)) {
7727 err = -EIO;
7728 goto done;
7729 }
7730
7731 IPW_DEBUG_WX("Initiating scan...\n");
7732 if (ipw2100_set_scan_options(priv) || ipw2100_start_scan(priv)) {
7733 IPW_DEBUG_WX("Start scan failed.\n");
7734
7735 /* TODO: Mark a scan as pending so when hardware initialized
7736 * a scan starts */
7737 }
7738
7739 done:
7740 up(&priv->action_sem);
7741 return err;
7742}
7743
7744static int ipw2100_wx_get_scan(struct net_device *dev,
7745 struct iw_request_info *info,
7746 union iwreq_data *wrqu, char *extra)
7747{
7748 /*
7749 * This can be called at any time. No action lock required
7750 */
7751
7752 struct ipw2100_priv *priv = ieee80211_priv(dev);
7753 return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
7754}
7755
7756/*
7757 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7758 */
7759static int ipw2100_wx_set_encode(struct net_device *dev,
7760 struct iw_request_info *info,
7761 union iwreq_data *wrqu, char *key)
7762{
7763 /*
7764 * No check of STATUS_INITIALIZED required
7765 */
7766
7767 struct ipw2100_priv *priv = ieee80211_priv(dev);
7768 return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
7769}
7770
7771static int ipw2100_wx_get_encode(struct net_device *dev,
7772 struct iw_request_info *info,
7773 union iwreq_data *wrqu, char *key)
7774{
7775 /*
7776 * This can be called at any time. No action lock required
7777 */
7778
7779 struct ipw2100_priv *priv = ieee80211_priv(dev);
7780 return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
7781}
7782
7783static int ipw2100_wx_set_power(struct net_device *dev,
7784 struct iw_request_info *info,
7785 union iwreq_data *wrqu, char *extra)
7786{
7787 struct ipw2100_priv *priv = ieee80211_priv(dev);
7788 int err = 0;
7789
7790 down(&priv->action_sem);
7791 if (!(priv->status & STATUS_INITIALIZED)) {
7792 err = -EIO;
7793 goto done;
7794 }
7795
7796 if (wrqu->power.disabled) {
7797 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7798 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7799 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7800 goto done;
7801 }
7802
7803 switch (wrqu->power.flags & IW_POWER_MODE) {
7804 case IW_POWER_ON: /* If not specified */
7805 case IW_POWER_MODE: /* If set all mask */
7806 case IW_POWER_ALL_R: /* If explicitely state all */
7807 break;
7808 default: /* Otherwise we don't support it */
7809 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7810 wrqu->power.flags);
7811 err = -EOPNOTSUPP;
7812 goto done;
7813 }
7814
7815 /* If the user hasn't specified a power management mode yet, default
7816 * to BATTERY */
7817 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7818 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7819
7820 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n", priv->power_mode);
7821
7822 done:
7823 up(&priv->action_sem);
7824 return err;
7825
7826}
7827
7828static int ipw2100_wx_get_power(struct net_device *dev,
7829 struct iw_request_info *info,
7830 union iwreq_data *wrqu, char *extra)
7831{
7832 /*
7833 * This can be called at any time. No action lock required
7834 */
7835
7836 struct ipw2100_priv *priv = ieee80211_priv(dev);
7837
7838 if (!(priv->power_mode & IPW_POWER_ENABLED))
7839 wrqu->power.disabled = 1;
7840 else {
7841 wrqu->power.disabled = 0;
7842 wrqu->power.flags = 0;
7843 }
7844
7845 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7846
7847 return 0;
7848}
7849
7850#if WIRELESS_EXT > 17
7851/*
7852 * WE-18 WPA support
7853 */
7854
7855/* SIOCSIWGENIE */
7856static int ipw2100_wx_set_genie(struct net_device *dev,
7857 struct iw_request_info *info,
7858 union iwreq_data *wrqu, char *extra)
7859{
7860
7861 struct ipw2100_priv *priv = ieee80211_priv(dev);
7862 struct ieee80211_device *ieee = priv->ieee;
7863 u8 *buf;
7864
7865 if (!ieee->wpa_enabled)
7866 return -EOPNOTSUPP;
7867
7868 if (wrqu->data.length > MAX_WPA_IE_LEN ||
7869 (wrqu->data.length && extra == NULL))
7870 return -EINVAL;
7871
7872 if (wrqu->data.length) {
7873 buf = kmalloc(wrqu->data.length, GFP_KERNEL);
7874 if (buf == NULL)
7875 return -ENOMEM;
7876
7877 memcpy(buf, extra, wrqu->data.length);
7878 kfree(ieee->wpa_ie);
7879 ieee->wpa_ie = buf;
7880 ieee->wpa_ie_len = wrqu->data.length;
7881 } else {
7882 kfree(ieee->wpa_ie);
7883 ieee->wpa_ie = NULL;
7884 ieee->wpa_ie_len = 0;
7885 }
7886
7887 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
7888
7889 return 0;
7890}
7891
7892/* SIOCGIWGENIE */
7893static int ipw2100_wx_get_genie(struct net_device *dev,
7894 struct iw_request_info *info,
7895 union iwreq_data *wrqu, char *extra)
7896{
7897 struct ipw2100_priv *priv = ieee80211_priv(dev);
7898 struct ieee80211_device *ieee = priv->ieee;
7899
7900 if (ieee->wpa_ie_len == 0 || ieee->wpa_ie == NULL) {
7901 wrqu->data.length = 0;
7902 return 0;
7903 }
7904
7905 if (wrqu->data.length < ieee->wpa_ie_len)
7906 return -E2BIG;
7907
7908 wrqu->data.length = ieee->wpa_ie_len;
7909 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
7910
7911 return 0;
7912}
7913
7914/* SIOCSIWAUTH */
7915static int ipw2100_wx_set_auth(struct net_device *dev,
7916 struct iw_request_info *info,
7917 union iwreq_data *wrqu, char *extra)
7918{
7919 struct ipw2100_priv *priv = ieee80211_priv(dev);
7920 struct ieee80211_device *ieee = priv->ieee;
7921 struct iw_param *param = &wrqu->param;
7922 struct ieee80211_crypt_data *crypt;
7923 unsigned long flags;
7924 int ret = 0;
7925
7926 switch (param->flags & IW_AUTH_INDEX) {
7927 case IW_AUTH_WPA_VERSION:
7928 case IW_AUTH_CIPHER_PAIRWISE:
7929 case IW_AUTH_CIPHER_GROUP:
7930 case IW_AUTH_KEY_MGMT:
7931 /*
7932 * ipw2200 does not use these parameters
7933 */
7934 break;
7935
7936 case IW_AUTH_TKIP_COUNTERMEASURES:
7937 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
7938 if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags) {
7939 IPW_DEBUG_WARNING("Can't set TKIP countermeasures: "
7940 "crypt not set!\n");
7941 break;
7942 }
7943
7944 flags = crypt->ops->get_flags(crypt->priv);
7945
7946 if (param->value)
7947 flags |= IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7948 else
7949 flags &= ~IEEE80211_CRYPTO_TKIP_COUNTERMEASURES;
7950
7951 crypt->ops->set_flags(flags, crypt->priv);
7952
7953 break;
7954
7955 case IW_AUTH_DROP_UNENCRYPTED:{
7956 /* HACK:
7957 *
7958 * wpa_supplicant calls set_wpa_enabled when the driver
7959 * is loaded and unloaded, regardless of if WPA is being
7960 * used. No other calls are made which can be used to
7961 * determine if encryption will be used or not prior to
7962 * association being expected. If encryption is not being
7963 * used, drop_unencrypted is set to false, else true -- we
7964 * can use this to determine if the CAP_PRIVACY_ON bit should
7965 * be set.
7966 */
7967 struct ieee80211_security sec = {
7968 .flags = SEC_ENABLED,
7969 .enabled = param->value,
7970 };
7971 priv->ieee->drop_unencrypted = param->value;
7972 /* We only change SEC_LEVEL for open mode. Others
7973 * are set by ipw_wpa_set_encryption.
7974 */
7975 if (!param->value) {
7976 sec.flags |= SEC_LEVEL;
7977 sec.level = SEC_LEVEL_0;
7978 } else {
7979 sec.flags |= SEC_LEVEL;
7980 sec.level = SEC_LEVEL_1;
7981 }
7982 if (priv->ieee->set_security)
7983 priv->ieee->set_security(priv->ieee->dev, &sec);
7984 break;
7985 }
7986
7987 case IW_AUTH_80211_AUTH_ALG:
7988 ret = ipw2100_wpa_set_auth_algs(priv, param->value);
7989 break;
7990
7991 case IW_AUTH_WPA_ENABLED:
7992 ret = ipw2100_wpa_enable(priv, param->value);
7993 break;
7994
7995 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
7996 ieee->ieee802_1x = param->value;
7997 break;
7998
7999 //case IW_AUTH_ROAMING_CONTROL:
8000 case IW_AUTH_PRIVACY_INVOKED:
8001 ieee->privacy_invoked = param->value;
8002 break;
8003
8004 default:
8005 return -EOPNOTSUPP;
8006 }
8007 return ret;
8008}
8009
8010/* SIOCGIWAUTH */
8011static int ipw2100_wx_get_auth(struct net_device *dev,
8012 struct iw_request_info *info,
8013 union iwreq_data *wrqu, char *extra)
8014{
8015 struct ipw2100_priv *priv = ieee80211_priv(dev);
8016 struct ieee80211_device *ieee = priv->ieee;
8017 struct ieee80211_crypt_data *crypt;
8018 struct iw_param *param = &wrqu->param;
8019 int ret = 0;
8020
8021 switch (param->flags & IW_AUTH_INDEX) {
8022 case IW_AUTH_WPA_VERSION:
8023 case IW_AUTH_CIPHER_PAIRWISE:
8024 case IW_AUTH_CIPHER_GROUP:
8025 case IW_AUTH_KEY_MGMT:
8026 /*
8027 * wpa_supplicant will control these internally
8028 */
8029 ret = -EOPNOTSUPP;
8030 break;
8031
8032 case IW_AUTH_TKIP_COUNTERMEASURES:
8033 crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
8034 if (!crypt || !crypt->ops->get_flags) {
8035 IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
8036 "crypt not set!\n");
8037 break;
8038 }
8039
8040 param->value = (crypt->ops->get_flags(crypt->priv) &
8041 IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) ? 1 : 0;
8042
8043 break;
8044
8045 case IW_AUTH_DROP_UNENCRYPTED:
8046 param->value = ieee->drop_unencrypted;
8047 break;
8048
8049 case IW_AUTH_80211_AUTH_ALG:
8050 param->value = priv->ieee->sec.auth_mode;
8051 break;
8052
8053 case IW_AUTH_WPA_ENABLED:
8054 param->value = ieee->wpa_enabled;
8055 break;
8056
8057 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
8058 param->value = ieee->ieee802_1x;
8059 break;
8060
8061 case IW_AUTH_ROAMING_CONTROL:
8062 case IW_AUTH_PRIVACY_INVOKED:
8063 param->value = ieee->privacy_invoked;
8064 break;
8065
8066 default:
8067 return -EOPNOTSUPP;
8068 }
8069 return 0;
8070}
8071
8072/* SIOCSIWENCODEEXT */
8073static int ipw2100_wx_set_encodeext(struct net_device *dev,
8074 struct iw_request_info *info,
8075 union iwreq_data *wrqu, char *extra)
8076{
8077 struct ipw2100_priv *priv = ieee80211_priv(dev);
8078 return ieee80211_wx_set_encodeext(priv->ieee, info, wrqu, extra);
8079}
8080
8081/* SIOCGIWENCODEEXT */
8082static int ipw2100_wx_get_encodeext(struct net_device *dev,
8083 struct iw_request_info *info,
8084 union iwreq_data *wrqu, char *extra)
8085{
8086 struct ipw2100_priv *priv = ieee80211_priv(dev);
8087 return ieee80211_wx_get_encodeext(priv->ieee, info, wrqu, extra);
8088}
8089
8090/* SIOCSIWMLME */
8091static int ipw2100_wx_set_mlme(struct net_device *dev,
8092 struct iw_request_info *info,
8093 union iwreq_data *wrqu, char *extra)
8094{
8095 struct ipw2100_priv *priv = ieee80211_priv(dev);
8096 struct iw_mlme *mlme = (struct iw_mlme *)extra;
8097 u16 reason;
8098
8099 reason = cpu_to_le16(mlme->reason_code);
8100
8101 switch (mlme->cmd) {
8102 case IW_MLME_DEAUTH:
8103 // silently ignore
8104 break;
8105
8106 case IW_MLME_DISASSOC:
8107 ipw2100_disassociate_bssid(priv);
8108 break;
8109
8110 default:
8111 return -EOPNOTSUPP;
8112 }
8113 return 0;
8114}
8115#endif /* WIRELESS_EXT > 17 */
8116
8117/*
8118 *
8119 * IWPRIV handlers
8120 *
8121 */
8122#ifdef CONFIG_IPW2100_MONITOR
8123static int ipw2100_wx_set_promisc(struct net_device *dev,
8124 struct iw_request_info *info,
8125 union iwreq_data *wrqu, char *extra)
8126{
8127 struct ipw2100_priv *priv = ieee80211_priv(dev);
8128 int *parms = (int *)extra;
8129 int enable = (parms[0] > 0);
8130 int err = 0;
8131
8132 down(&priv->action_sem);
8133 if (!(priv->status & STATUS_INITIALIZED)) {
8134 err = -EIO;
8135 goto done;
8136 }
8137
8138 if (enable) {
8139 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
8140 err = ipw2100_set_channel(priv, parms[1], 0);
8141 goto done;
8142 }
8143 priv->channel = parms[1];
8144 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
8145 } else {
8146 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
8147 err = ipw2100_switch_mode(priv, priv->last_mode);
8148 }
8149 done:
8150 up(&priv->action_sem);
8151 return err;
8152}
8153
8154static int ipw2100_wx_reset(struct net_device *dev,
8155 struct iw_request_info *info,
8156 union iwreq_data *wrqu, char *extra)
8157{
8158 struct ipw2100_priv *priv = ieee80211_priv(dev);
8159 if (priv->status & STATUS_INITIALIZED)
8160 schedule_reset(priv);
8161 return 0;
8162}
8163
8164#endif
8165
8166static int ipw2100_wx_set_powermode(struct net_device *dev,
8167 struct iw_request_info *info,
8168 union iwreq_data *wrqu, char *extra)
8169{
8170 struct ipw2100_priv *priv = ieee80211_priv(dev);
8171 int err = 0, mode = *(int *)extra;
8172
8173 down(&priv->action_sem);
8174 if (!(priv->status & STATUS_INITIALIZED)) {
8175 err = -EIO;
8176 goto done;
8177 }
8178
8179 if ((mode < 1) || (mode > POWER_MODES))
8180 mode = IPW_POWER_AUTO;
8181
8182 if (priv->power_mode != mode)
8183 err = ipw2100_set_power_mode(priv, mode);
8184 done:
8185 up(&priv->action_sem);
8186 return err;
8187}
8188
8189#define MAX_POWER_STRING 80
8190static int ipw2100_wx_get_powermode(struct net_device *dev,
8191 struct iw_request_info *info,
8192 union iwreq_data *wrqu, char *extra)
8193{
8194 /*
8195 * This can be called at any time. No action lock required
8196 */
8197
8198 struct ipw2100_priv *priv = ieee80211_priv(dev);
8199 int level = IPW_POWER_LEVEL(priv->power_mode);
8200 s32 timeout, period;
8201
8202 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
8203 snprintf(extra, MAX_POWER_STRING,
8204 "Power save level: %d (Off)", level);
8205 } else {
8206 switch (level) {
8207 case IPW_POWER_MODE_CAM:
8208 snprintf(extra, MAX_POWER_STRING,
8209 "Power save level: %d (None)", level);
8210 break;
8211 case IPW_POWER_AUTO:
8212 snprintf(extra, MAX_POWER_STRING,
8213 "Power save level: %d (Auto)", 0);
8214 break;
8215 default:
8216 timeout = timeout_duration[level - 1] / 1000;
8217 period = period_duration[level - 1] / 1000;
8218 snprintf(extra, MAX_POWER_STRING,
8219 "Power save level: %d "
8220 "(Timeout %dms, Period %dms)",
8221 level, timeout, period);
8222 }
8223 }
8224
8225 wrqu->data.length = strlen(extra) + 1;
8226
8227 return 0;
8228}
8229
8230static int ipw2100_wx_set_preamble(struct net_device *dev,
8231 struct iw_request_info *info,
8232 union iwreq_data *wrqu, char *extra)
8233{
8234 struct ipw2100_priv *priv = ieee80211_priv(dev);
8235 int err, mode = *(int *)extra;
8236
8237 down(&priv->action_sem);
8238 if (!(priv->status & STATUS_INITIALIZED)) {
8239 err = -EIO;
8240 goto done;
8241 }
8242
8243 if (mode == 1)
8244 priv->config |= CFG_LONG_PREAMBLE;
8245 else if (mode == 0)
8246 priv->config &= ~CFG_LONG_PREAMBLE;
8247 else {
8248 err = -EINVAL;
8249 goto done;
8250 }
8251
8252 err = ipw2100_system_config(priv, 0);
8253
8254 done:
8255 up(&priv->action_sem);
8256 return err;
8257}
8258
8259static int ipw2100_wx_get_preamble(struct net_device *dev,
8260 struct iw_request_info *info,
8261 union iwreq_data *wrqu, char *extra)
8262{
8263 /*
8264 * This can be called at any time. No action lock required
8265 */
8266
8267 struct ipw2100_priv *priv = ieee80211_priv(dev);
8268
8269 if (priv->config & CFG_LONG_PREAMBLE)
8270 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
8271 else
8272 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
8273
8274 return 0;
8275}
8276
8277#ifdef CONFIG_IPW2100_MONITOR
8278static int ipw2100_wx_set_crc_check(struct net_device *dev,
8279 struct iw_request_info *info,
8280 union iwreq_data *wrqu, char *extra)
8281{
8282 struct ipw2100_priv *priv = ieee80211_priv(dev);
8283 int err, mode = *(int *)extra;
8284
8285 down(&priv->action_sem);
8286 if (!(priv->status & STATUS_INITIALIZED)) {
8287 err = -EIO;
8288 goto done;
8289 }
8290
8291 if (mode == 1)
8292 priv->config |= CFG_CRC_CHECK;
8293 else if (mode == 0)
8294 priv->config &= ~CFG_CRC_CHECK;
8295 else {
8296 err = -EINVAL;
8297 goto done;
8298 }
8299 err = 0;
8300
8301 done:
8302 up(&priv->action_sem);
8303 return err;
8304}
8305
8306static int ipw2100_wx_get_crc_check(struct net_device *dev,
8307 struct iw_request_info *info,
8308 union iwreq_data *wrqu, char *extra)
8309{
8310 /*
8311 * This can be called at any time. No action lock required
8312 */
8313
8314 struct ipw2100_priv *priv = ieee80211_priv(dev);
8315
8316 if (priv->config & CFG_CRC_CHECK)
8317 snprintf(wrqu->name, IFNAMSIZ, "CRC checked (1)");
8318 else
8319 snprintf(wrqu->name, IFNAMSIZ, "CRC ignored (0)");
8320
8321 return 0;
8322}
8323#endif /* CONFIG_IPW2100_MONITOR */
8324
8325static iw_handler ipw2100_wx_handlers[] = {
8326 NULL, /* SIOCSIWCOMMIT */
8327 ipw2100_wx_get_name, /* SIOCGIWNAME */
8328 NULL, /* SIOCSIWNWID */
8329 NULL, /* SIOCGIWNWID */
8330 ipw2100_wx_set_freq, /* SIOCSIWFREQ */
8331 ipw2100_wx_get_freq, /* SIOCGIWFREQ */
8332 ipw2100_wx_set_mode, /* SIOCSIWMODE */
8333 ipw2100_wx_get_mode, /* SIOCGIWMODE */
8334 NULL, /* SIOCSIWSENS */
8335 NULL, /* SIOCGIWSENS */
8336 NULL, /* SIOCSIWRANGE */
8337 ipw2100_wx_get_range, /* SIOCGIWRANGE */
8338 NULL, /* SIOCSIWPRIV */
8339 NULL, /* SIOCGIWPRIV */
8340 NULL, /* SIOCSIWSTATS */
8341 NULL, /* SIOCGIWSTATS */
8342 NULL, /* SIOCSIWSPY */
8343 NULL, /* SIOCGIWSPY */
8344 NULL, /* SIOCGIWTHRSPY */
8345 NULL, /* SIOCWIWTHRSPY */
8346 ipw2100_wx_set_wap, /* SIOCSIWAP */
8347 ipw2100_wx_get_wap, /* SIOCGIWAP */
8348#if WIRELESS_EXT > 17
8349 ipw2100_wx_set_mlme, /* SIOCSIWMLME */
8350#else
8351 NULL, /* -- hole -- */
8352#endif
8353 NULL, /* SIOCGIWAPLIST -- deprecated */
8354 ipw2100_wx_set_scan, /* SIOCSIWSCAN */
8355 ipw2100_wx_get_scan, /* SIOCGIWSCAN */
8356 ipw2100_wx_set_essid, /* SIOCSIWESSID */
8357 ipw2100_wx_get_essid, /* SIOCGIWESSID */
8358 ipw2100_wx_set_nick, /* SIOCSIWNICKN */
8359 ipw2100_wx_get_nick, /* SIOCGIWNICKN */
8360 NULL, /* -- hole -- */
8361 NULL, /* -- hole -- */
8362 ipw2100_wx_set_rate, /* SIOCSIWRATE */
8363 ipw2100_wx_get_rate, /* SIOCGIWRATE */
8364 ipw2100_wx_set_rts, /* SIOCSIWRTS */
8365 ipw2100_wx_get_rts, /* SIOCGIWRTS */
8366 ipw2100_wx_set_frag, /* SIOCSIWFRAG */
8367 ipw2100_wx_get_frag, /* SIOCGIWFRAG */
8368 ipw2100_wx_set_txpow, /* SIOCSIWTXPOW */
8369 ipw2100_wx_get_txpow, /* SIOCGIWTXPOW */
8370 ipw2100_wx_set_retry, /* SIOCSIWRETRY */
8371 ipw2100_wx_get_retry, /* SIOCGIWRETRY */
8372 ipw2100_wx_set_encode, /* SIOCSIWENCODE */
8373 ipw2100_wx_get_encode, /* SIOCGIWENCODE */
8374 ipw2100_wx_set_power, /* SIOCSIWPOWER */
8375 ipw2100_wx_get_power, /* SIOCGIWPOWER */
8376#if WIRELESS_EXT > 17
8377 NULL, /* -- hole -- */
8378 NULL, /* -- hole -- */
8379 ipw2100_wx_set_genie, /* SIOCSIWGENIE */
8380 ipw2100_wx_get_genie, /* SIOCGIWGENIE */
8381 ipw2100_wx_set_auth, /* SIOCSIWAUTH */
8382 ipw2100_wx_get_auth, /* SIOCGIWAUTH */
8383 ipw2100_wx_set_encodeext, /* SIOCSIWENCODEEXT */
8384 ipw2100_wx_get_encodeext, /* SIOCGIWENCODEEXT */
8385 NULL, /* SIOCSIWPMKSA */
8386#endif
8387};
8388
8389#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8390#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8391#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8392#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8393#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8394#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8395#define IPW2100_PRIV_SET_CRC_CHECK SIOCIWFIRSTPRIV+6
8396#define IPW2100_PRIV_GET_CRC_CHECK SIOCIWFIRSTPRIV+7
8397
8398static const struct iw_priv_args ipw2100_private_args[] = {
8399
8400#ifdef CONFIG_IPW2100_MONITOR
8401 {
8402 IPW2100_PRIV_SET_MONITOR,
8403 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"},
8404 {
8405 IPW2100_PRIV_RESET,
8406 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"},
8407#endif /* CONFIG_IPW2100_MONITOR */
8408
8409 {
8410 IPW2100_PRIV_SET_POWER,
8411 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"},
8412 {
8413 IPW2100_PRIV_GET_POWER,
8414 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING,
8415 "get_power"},
8416 {
8417 IPW2100_PRIV_SET_LONGPREAMBLE,
8418 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
8419 {
8420 IPW2100_PRIV_GET_LONGPREAMBLE,
8421 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"},
8422#ifdef CONFIG_IPW2100_MONITOR
8423 {
8424 IPW2100_PRIV_SET_CRC_CHECK,
8425 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_crc_check"},
8426 {
8427 IPW2100_PRIV_GET_CRC_CHECK,
8428 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_crc_check"},
8429#endif /* CONFIG_IPW2100_MONITOR */
8430};
8431
8432static iw_handler ipw2100_private_handler[] = {
8433#ifdef CONFIG_IPW2100_MONITOR
8434 ipw2100_wx_set_promisc,
8435 ipw2100_wx_reset,
8436#else /* CONFIG_IPW2100_MONITOR */
8437 NULL,
8438 NULL,
8439#endif /* CONFIG_IPW2100_MONITOR */
8440 ipw2100_wx_set_powermode,
8441 ipw2100_wx_get_powermode,
8442 ipw2100_wx_set_preamble,
8443 ipw2100_wx_get_preamble,
8444#ifdef CONFIG_IPW2100_MONITOR
8445 ipw2100_wx_set_crc_check,
8446 ipw2100_wx_get_crc_check,
8447#else /* CONFIG_IPW2100_MONITOR */
8448 NULL,
8449 NULL,
8450#endif /* CONFIG_IPW2100_MONITOR */
8451};
8452
8453static struct iw_handler_def ipw2100_wx_handler_def = {
8454 .standard = ipw2100_wx_handlers,
8455 .num_standard = sizeof(ipw2100_wx_handlers) / sizeof(iw_handler),
8456 .num_private = sizeof(ipw2100_private_handler) / sizeof(iw_handler),
8457 .num_private_args = sizeof(ipw2100_private_args) /
8458 sizeof(struct iw_priv_args),
8459 .private = (iw_handler *) ipw2100_private_handler,
8460 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8461};
8462
8463/*
8464 * Get wireless statistics.
8465 * Called by /proc/net/wireless
8466 * Also called by SIOCGIWSTATS
8467 */
8468static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device *dev)
8469{
8470 enum {
8471 POOR = 30,
8472 FAIR = 60,
8473 GOOD = 80,
8474 VERY_GOOD = 90,
8475 EXCELLENT = 95,
8476 PERFECT = 100
8477 };
8478 int rssi_qual;
8479 int tx_qual;
8480 int beacon_qual;
8481
8482 struct ipw2100_priv *priv = ieee80211_priv(dev);
8483 struct iw_statistics *wstats;
8484 u32 rssi, quality, tx_retries, missed_beacons, tx_failures;
8485 u32 ord_len = sizeof(u32);
8486
8487 if (!priv)
8488 return (struct iw_statistics *)NULL;
8489
8490 wstats = &priv->wstats;
8491
8492 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8493 * ipw2100_wx_wireless_stats seems to be called before fw is
8494 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8495 * and associated; if not associcated, the values are all meaningless
8496 * anyway, so set them all to NULL and INVALID */
8497 if (!(priv->status & STATUS_ASSOCIATED)) {
8498 wstats->miss.beacon = 0;
8499 wstats->discard.retries = 0;
8500 wstats->qual.qual = 0;
8501 wstats->qual.level = 0;
8502 wstats->qual.noise = 0;
8503 wstats->qual.updated = 7;
8504 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8505 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8506 return wstats;
8507 }
8508
8509 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8510 &missed_beacons, &ord_len))
8511 goto fail_get_ordinal;
8512
8513 /* If we don't have a connection the quality and level is 0 */
8514 if (!(priv->status & STATUS_ASSOCIATED)) {
8515 wstats->qual.qual = 0;
8516 wstats->qual.level = 0;
8517 } else {
8518 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8519 &rssi, &ord_len))
8520 goto fail_get_ordinal;
8521 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8522 if (rssi < 10)
8523 rssi_qual = rssi * POOR / 10;
8524 else if (rssi < 15)
8525 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8526 else if (rssi < 20)
8527 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8528 else if (rssi < 30)
8529 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8530 10 + GOOD;
8531 else
8532 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8533 10 + VERY_GOOD;
8534
8535 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8536 &tx_retries, &ord_len))
8537 goto fail_get_ordinal;
8538
8539 if (tx_retries > 75)
8540 tx_qual = (90 - tx_retries) * POOR / 15;
8541 else if (tx_retries > 70)
8542 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8543 else if (tx_retries > 65)
8544 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8545 else if (tx_retries > 50)
8546 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8547 15 + GOOD;
8548 else
8549 tx_qual = (50 - tx_retries) *
8550 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8551
8552 if (missed_beacons > 50)
8553 beacon_qual = (60 - missed_beacons) * POOR / 10;
8554 else if (missed_beacons > 40)
8555 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8556 10 + POOR;
8557 else if (missed_beacons > 32)
8558 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8559 18 + FAIR;
8560 else if (missed_beacons > 20)
8561 beacon_qual = (32 - missed_beacons) *
8562 (VERY_GOOD - GOOD) / 20 + GOOD;
8563 else
8564 beacon_qual = (20 - missed_beacons) *
8565 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8566
8567 quality = min(beacon_qual, min(tx_qual, rssi_qual));
8568
8569#ifdef CONFIG_IPW_DEBUG
8570 if (beacon_qual == quality)
8571 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8572 else if (tx_qual == quality)
8573 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8574 else if (quality != 100)
8575 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8576 else
8577 IPW_DEBUG_WX("Quality not clamped.\n");
8578#endif
8579
8580 wstats->qual.qual = quality;
8581 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8582 }
8583
8584 wstats->qual.noise = 0;
8585 wstats->qual.updated = 7;
8586 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8587
8588 /* FIXME: this is percent and not a # */
8589 wstats->miss.beacon = missed_beacons;
8590
8591 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8592 &tx_failures, &ord_len))
8593 goto fail_get_ordinal;
8594 wstats->discard.retries = tx_failures;
8595
8596 return wstats;
8597
8598 fail_get_ordinal:
8599 IPW_DEBUG_WX("failed querying ordinals.\n");
8600
8601 return (struct iw_statistics *)NULL;
8602}
8603
8604static void ipw2100_wx_event_work(struct ipw2100_priv *priv)
8605{
8606 union iwreq_data wrqu;
8607 int len = ETH_ALEN;
8608
8609 if (priv->status & STATUS_STOPPING)
8610 return;
8611
8612 down(&priv->action_sem);
8613
8614 IPW_DEBUG_WX("enter\n");
8615
8616 up(&priv->action_sem);
8617
8618 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8619
8620 /* Fetch BSSID from the hardware */
8621 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8622 priv->status & STATUS_RF_KILL_MASK ||
8623 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8624 &priv->bssid, &len)) {
8625 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
8626 } else {
8627 /* We now have the BSSID, so can finish setting to the full
8628 * associated state */
8629 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8630 memcpy(priv->ieee->bssid, priv->bssid, ETH_ALEN);
8631 priv->status &= ~STATUS_ASSOCIATING;
8632 priv->status |= STATUS_ASSOCIATED;
8633 netif_carrier_on(priv->net_dev);
8634 netif_wake_queue(priv->net_dev);
8635 }
8636
8637 if (!(priv->status & STATUS_ASSOCIATED)) {
8638 IPW_DEBUG_WX("Configuring ESSID\n");
8639 down(&priv->action_sem);
8640 /* This is a disassociation event, so kick the firmware to
8641 * look for another AP */
8642 if (priv->config & CFG_STATIC_ESSID)
8643 ipw2100_set_essid(priv, priv->essid, priv->essid_len,
8644 0);
8645 else
8646 ipw2100_set_essid(priv, NULL, 0, 0);
8647 up(&priv->action_sem);
8648 }
8649
8650 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8651}
8652
8653#define IPW2100_FW_MAJOR_VERSION 1
8654#define IPW2100_FW_MINOR_VERSION 3
8655
8656#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8657#define IPW2100_FW_MAJOR(x) (x & 0xff)
8658
8659#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8660 IPW2100_FW_MAJOR_VERSION)
8661
8662#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8663"." __stringify(IPW2100_FW_MINOR_VERSION)
8664
8665#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8666
8667/*
8668
8669BINARY FIRMWARE HEADER FORMAT
8670
8671offset length desc
86720 2 version
86732 2 mode == 0:BSS,1:IBSS,2:MONITOR
86744 4 fw_len
86758 4 uc_len
8676C fw_len firmware data
867712 + fw_len uc_len microcode data
8678
8679*/
8680
8681struct ipw2100_fw_header {
8682 short version;
8683 short mode;
8684 unsigned int fw_size;
8685 unsigned int uc_size;
8686} __attribute__ ((packed));
8687
8688static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8689{
8690 struct ipw2100_fw_header *h =
8691 (struct ipw2100_fw_header *)fw->fw_entry->data;
8692
8693 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8694 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8695 "(detected version id of %u). "
8696 "See Documentation/networking/README.ipw2100\n",
8697 h->version);
8698 return 1;
8699 }
8700
8701 fw->version = h->version;
8702 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8703 fw->fw.size = h->fw_size;
8704 fw->uc.data = fw->fw.data + h->fw_size;
8705 fw->uc.size = h->uc_size;
8706
8707 return 0;
8708}
8709
8710static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8711 struct ipw2100_fw *fw)
8712{
8713 char *fw_name;
8714 int rc;
8715
8716 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8717 priv->net_dev->name);
8718
8719 switch (priv->ieee->iw_mode) {
8720 case IW_MODE_ADHOC:
8721 fw_name = IPW2100_FW_NAME("-i");
8722 break;
8723#ifdef CONFIG_IPW2100_MONITOR
8724 case IW_MODE_MONITOR:
8725 fw_name = IPW2100_FW_NAME("-p");
8726 break;
8727#endif
8728 case IW_MODE_INFRA:
8729 default:
8730 fw_name = IPW2100_FW_NAME("");
8731 break;
8732 }
8733
8734 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8735
8736 if (rc < 0) {
8737 printk(KERN_ERR DRV_NAME ": "
8738 "%s: Firmware '%s' not available or load failed.\n",
8739 priv->net_dev->name, fw_name);
8740 return rc;
8741 }
8742 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8743 fw->fw_entry->size);
8744
8745 ipw2100_mod_firmware_load(fw);
8746
8747 return 0;
8748}
8749
8750static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8751 struct ipw2100_fw *fw)
8752{
8753 fw->version = 0;
8754 if (fw->fw_entry)
8755 release_firmware(fw->fw_entry);
8756 fw->fw_entry = NULL;
8757}
8758
8759static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8760 size_t max)
8761{
8762 char ver[MAX_FW_VERSION_LEN];
8763 u32 len = MAX_FW_VERSION_LEN;
8764 u32 tmp;
8765 int i;
8766 /* firmware version is an ascii string (max len of 14) */
8767 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM, ver, &len))
8768 return -EIO;
8769 tmp = max;
8770 if (len >= max)
8771 len = max - 1;
8772 for (i = 0; i < len; i++)
8773 buf[i] = ver[i];
8774 buf[i] = '\0';
8775 return tmp;
8776}
8777
8778static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8779 size_t max)
8780{
8781 u32 ver;
8782 u32 len = sizeof(ver);
8783 /* microcode version is a 32 bit integer */
8784 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION, &ver, &len))
8785 return -EIO;
8786 return snprintf(buf, max, "%08X", ver);
8787}
8788
8789/*
8790 * On exit, the firmware will have been freed from the fw list
8791 */
8792static int ipw2100_fw_download(struct ipw2100_priv *priv, struct ipw2100_fw *fw)
8793{
8794 /* firmware is constructed of N contiguous entries, each entry is
8795 * structured as:
8796 *
8797 * offset sie desc
8798 * 0 4 address to write to
8799 * 4 2 length of data run
8800 * 6 length data
8801 */
8802 unsigned int addr;
8803 unsigned short len;
8804
8805 const unsigned char *firmware_data = fw->fw.data;
8806 unsigned int firmware_data_left = fw->fw.size;
8807
8808 while (firmware_data_left > 0) {
8809 addr = *(u32 *) (firmware_data);
8810 firmware_data += 4;
8811 firmware_data_left -= 4;
8812
8813 len = *(u16 *) (firmware_data);
8814 firmware_data += 2;
8815 firmware_data_left -= 2;
8816
8817 if (len > 32) {
8818 printk(KERN_ERR DRV_NAME ": "
8819 "Invalid firmware run-length of %d bytes\n",
8820 len);
8821 return -EINVAL;
8822 }
8823
8824 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8825 firmware_data += len;
8826 firmware_data_left -= len;
8827 }
8828
8829 return 0;
8830}
8831
8832struct symbol_alive_response {
8833 u8 cmd_id;
8834 u8 seq_num;
8835 u8 ucode_rev;
8836 u8 eeprom_valid;
8837 u16 valid_flags;
8838 u8 IEEE_addr[6];
8839 u16 flags;
8840 u16 pcb_rev;
8841 u16 clock_settle_time; // 1us LSB
8842 u16 powerup_settle_time; // 1us LSB
8843 u16 hop_settle_time; // 1us LSB
8844 u8 date[3]; // month, day, year
8845 u8 time[2]; // hours, minutes
8846 u8 ucode_valid;
8847};
8848
8849static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8850 struct ipw2100_fw *fw)
8851{
8852 struct net_device *dev = priv->net_dev;
8853 const unsigned char *microcode_data = fw->uc.data;
8854 unsigned int microcode_data_left = fw->uc.size;
8855 void __iomem *reg = (void __iomem *)dev->base_addr;
8856
8857 struct symbol_alive_response response;
8858 int i, j;
8859 u8 data;
8860
8861 /* Symbol control */
8862 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8863 readl(reg);
8864 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8865 readl(reg);
8866
8867 /* HW config */
8868 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8869 readl(reg);
8870 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8871 readl(reg);
8872
8873 /* EN_CS_ACCESS bit to reset control store pointer */
8874 write_nic_byte(dev, 0x210000, 0x40);
8875 readl(reg);
8876 write_nic_byte(dev, 0x210000, 0x0);
8877 readl(reg);
8878 write_nic_byte(dev, 0x210000, 0x40);
8879 readl(reg);
8880
8881 /* copy microcode from buffer into Symbol */
8882
8883 while (microcode_data_left > 0) {
8884 write_nic_byte(dev, 0x210010, *microcode_data++);
8885 write_nic_byte(dev, 0x210010, *microcode_data++);
8886 microcode_data_left -= 2;
8887 }
8888
8889 /* EN_CS_ACCESS bit to reset the control store pointer */
8890 write_nic_byte(dev, 0x210000, 0x0);
8891 readl(reg);
8892
8893 /* Enable System (Reg 0)
8894 * first enable causes garbage in RX FIFO */
8895 write_nic_byte(dev, 0x210000, 0x0);
8896 readl(reg);
8897 write_nic_byte(dev, 0x210000, 0x80);
8898 readl(reg);
8899
8900 /* Reset External Baseband Reg */
8901 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8902 readl(reg);
8903 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8904 readl(reg);
8905
8906 /* HW Config (Reg 5) */
8907 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8908 readl(reg);
8909 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8910 readl(reg);
8911
8912 /* Enable System (Reg 0)
8913 * second enable should be OK */
8914 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8915 readl(reg);
8916 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8917
8918 /* check Symbol is enabled - upped this from 5 as it wasn't always
8919 * catching the update */
8920 for (i = 0; i < 10; i++) {
8921 udelay(10);
8922
8923 /* check Dino is enabled bit */
8924 read_nic_byte(dev, 0x210000, &data);
8925 if (data & 0x1)
8926 break;
8927 }
8928
8929 if (i == 10) {
8930 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8931 dev->name);
8932 return -EIO;
8933 }
8934
8935 /* Get Symbol alive response */
8936 for (i = 0; i < 30; i++) {
8937 /* Read alive response structure */
8938 for (j = 0;
8939 j < (sizeof(struct symbol_alive_response) >> 1); j++)
8940 read_nic_word(dev, 0x210004, ((u16 *) & response) + j);
8941
8942 if ((response.cmd_id == 1) && (response.ucode_valid == 0x1))
8943 break;
8944 udelay(10);
8945 }
8946
8947 if (i == 30) {
8948 printk(KERN_ERR DRV_NAME
8949 ": %s: No response from Symbol - hw not alive\n",
8950 dev->name);
8951 printk_buf(IPW_DL_ERROR, (u8 *) & response, sizeof(response));
8952 return -EIO;
8953 }
8954
8955 return 0;
8956}
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