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-rw-r--r--drivers/net/wireless/ipw2100.c8679
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diff --git a/drivers/net/wireless/ipw2100.c b/drivers/net/wireless/ipw2100.c
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+++ b/drivers/net/wireless/ipw2100.c
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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 "1.1.0"
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) 2003-2004 Intel Corporation"
176
177
178/* Debugging stuff */
179#ifdef CONFIG_IPW_DEBUG
180#define CONFIG_IPW2100_RX_DEBUG /* Reception debugging */
181#endif
182
183MODULE_DESCRIPTION(DRV_DESCRIPTION);
184MODULE_VERSION(DRV_VERSION);
185MODULE_AUTHOR(DRV_COPYRIGHT);
186MODULE_LICENSE("GPL");
187
188static int debug = 0;
189static int mode = 0;
190static int channel = 0;
191static int associate = 1;
192static int disable = 0;
193#ifdef CONFIG_PM
194static struct ipw2100_fw ipw2100_firmware;
195#endif
196
197#include <linux/moduleparam.h>
198module_param(debug, int, 0444);
199module_param(mode, int, 0444);
200module_param(channel, int, 0444);
201module_param(associate, int, 0444);
202module_param(disable, int, 0444);
203
204MODULE_PARM_DESC(debug, "debug level");
205MODULE_PARM_DESC(mode, "network mode (0=BSS,1=IBSS,2=Monitor)");
206MODULE_PARM_DESC(channel, "channel");
207MODULE_PARM_DESC(associate, "auto associate when scanning (default on)");
208MODULE_PARM_DESC(disable, "manually disable the radio (default 0 [radio on])");
209
210static u32 ipw2100_debug_level = IPW_DL_NONE;
211
212#ifdef CONFIG_IPW_DEBUG
213#define IPW_DEBUG(level, message...) \
214do { \
215 if (ipw2100_debug_level & (level)) { \
216 printk(KERN_DEBUG "ipw2100: %c %s ", \
217 in_interrupt() ? 'I' : 'U', __FUNCTION__); \
218 printk(message); \
219 } \
220} while (0)
221#else
222#define IPW_DEBUG(level, message...) do {} while (0)
223#endif /* CONFIG_IPW_DEBUG */
224
225#ifdef CONFIG_IPW_DEBUG
226static const char *command_types[] = {
227 "undefined",
228 "unused", /* HOST_ATTENTION */
229 "HOST_COMPLETE",
230 "unused", /* SLEEP */
231 "unused", /* HOST_POWER_DOWN */
232 "unused",
233 "SYSTEM_CONFIG",
234 "unused", /* SET_IMR */
235 "SSID",
236 "MANDATORY_BSSID",
237 "AUTHENTICATION_TYPE",
238 "ADAPTER_ADDRESS",
239 "PORT_TYPE",
240 "INTERNATIONAL_MODE",
241 "CHANNEL",
242 "RTS_THRESHOLD",
243 "FRAG_THRESHOLD",
244 "POWER_MODE",
245 "TX_RATES",
246 "BASIC_TX_RATES",
247 "WEP_KEY_INFO",
248 "unused",
249 "unused",
250 "unused",
251 "unused",
252 "WEP_KEY_INDEX",
253 "WEP_FLAGS",
254 "ADD_MULTICAST",
255 "CLEAR_ALL_MULTICAST",
256 "BEACON_INTERVAL",
257 "ATIM_WINDOW",
258 "CLEAR_STATISTICS",
259 "undefined",
260 "undefined",
261 "undefined",
262 "undefined",
263 "TX_POWER_INDEX",
264 "undefined",
265 "undefined",
266 "undefined",
267 "undefined",
268 "undefined",
269 "undefined",
270 "BROADCAST_SCAN",
271 "CARD_DISABLE",
272 "PREFERRED_BSSID",
273 "SET_SCAN_OPTIONS",
274 "SCAN_DWELL_TIME",
275 "SWEEP_TABLE",
276 "AP_OR_STATION_TABLE",
277 "GROUP_ORDINALS",
278 "SHORT_RETRY_LIMIT",
279 "LONG_RETRY_LIMIT",
280 "unused", /* SAVE_CALIBRATION */
281 "unused", /* RESTORE_CALIBRATION */
282 "undefined",
283 "undefined",
284 "undefined",
285 "HOST_PRE_POWER_DOWN",
286 "unused", /* HOST_INTERRUPT_COALESCING */
287 "undefined",
288 "CARD_DISABLE_PHY_OFF",
289 "MSDU_TX_RATES"
290 "undefined",
291 "undefined",
292 "SET_STATION_STAT_BITS",
293 "CLEAR_STATIONS_STAT_BITS",
294 "LEAP_ROGUE_MODE",
295 "SET_SECURITY_INFORMATION",
296 "DISASSOCIATION_BSSID",
297 "SET_WPA_ASS_IE"
298};
299#endif
300
301
302/* Pre-decl until we get the code solid and then we can clean it up */
303static void ipw2100_tx_send_commands(struct ipw2100_priv *priv);
304static void ipw2100_tx_send_data(struct ipw2100_priv *priv);
305static int ipw2100_adapter_setup(struct ipw2100_priv *priv);
306
307static void ipw2100_queues_initialize(struct ipw2100_priv *priv);
308static void ipw2100_queues_free(struct ipw2100_priv *priv);
309static int ipw2100_queues_allocate(struct ipw2100_priv *priv);
310
311static int ipw2100_fw_download(struct ipw2100_priv *priv,
312 struct ipw2100_fw *fw);
313static int ipw2100_get_firmware(struct ipw2100_priv *priv,
314 struct ipw2100_fw *fw);
315static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
316 size_t max);
317static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
318 size_t max);
319static void ipw2100_release_firmware(struct ipw2100_priv *priv,
320 struct ipw2100_fw *fw);
321static int ipw2100_ucode_download(struct ipw2100_priv *priv,
322 struct ipw2100_fw *fw);
323static void ipw2100_wx_event_work(struct ipw2100_priv *priv);
324static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device * dev);
325static struct iw_handler_def ipw2100_wx_handler_def;
326
327
328static inline void read_register(struct net_device *dev, u32 reg, u32 *val)
329{
330 *val = readl((void *)(dev->base_addr + reg));
331 IPW_DEBUG_IO("r: 0x%08X => 0x%08X\n", reg, *val);
332}
333
334static inline void write_register(struct net_device *dev, u32 reg, u32 val)
335{
336 writel(val, (void *)(dev->base_addr + reg));
337 IPW_DEBUG_IO("w: 0x%08X <= 0x%08X\n", reg, val);
338}
339
340static inline void read_register_word(struct net_device *dev, u32 reg, u16 *val)
341{
342 *val = readw((void *)(dev->base_addr + reg));
343 IPW_DEBUG_IO("r: 0x%08X => %04X\n", reg, *val);
344}
345
346static inline void read_register_byte(struct net_device *dev, u32 reg, u8 *val)
347{
348 *val = readb((void *)(dev->base_addr + reg));
349 IPW_DEBUG_IO("r: 0x%08X => %02X\n", reg, *val);
350}
351
352static inline void write_register_word(struct net_device *dev, u32 reg, u16 val)
353{
354 writew(val, (void *)(dev->base_addr + reg));
355 IPW_DEBUG_IO("w: 0x%08X <= %04X\n", reg, val);
356}
357
358
359static inline void write_register_byte(struct net_device *dev, u32 reg, u8 val)
360{
361 writeb(val, (void *)(dev->base_addr + reg));
362 IPW_DEBUG_IO("w: 0x%08X =< %02X\n", reg, val);
363}
364
365static inline void read_nic_dword(struct net_device *dev, u32 addr, u32 *val)
366{
367 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
368 addr & IPW_REG_INDIRECT_ADDR_MASK);
369 read_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
370}
371
372static inline void write_nic_dword(struct net_device *dev, u32 addr, u32 val)
373{
374 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
375 addr & IPW_REG_INDIRECT_ADDR_MASK);
376 write_register(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
377}
378
379static inline void read_nic_word(struct net_device *dev, u32 addr, u16 *val)
380{
381 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
382 addr & IPW_REG_INDIRECT_ADDR_MASK);
383 read_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
384}
385
386static inline void write_nic_word(struct net_device *dev, u32 addr, u16 val)
387{
388 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
389 addr & IPW_REG_INDIRECT_ADDR_MASK);
390 write_register_word(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
391}
392
393static inline void read_nic_byte(struct net_device *dev, u32 addr, u8 *val)
394{
395 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
396 addr & IPW_REG_INDIRECT_ADDR_MASK);
397 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
398}
399
400static inline void write_nic_byte(struct net_device *dev, u32 addr, u8 val)
401{
402 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
403 addr & IPW_REG_INDIRECT_ADDR_MASK);
404 write_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA, val);
405}
406
407static inline void write_nic_auto_inc_address(struct net_device *dev, u32 addr)
408{
409 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
410 addr & IPW_REG_INDIRECT_ADDR_MASK);
411}
412
413static inline void write_nic_dword_auto_inc(struct net_device *dev, u32 val)
414{
415 write_register(dev, IPW_REG_AUTOINCREMENT_DATA, val);
416}
417
418static inline void write_nic_memory(struct net_device *dev, u32 addr, u32 len,
419 const u8 *buf)
420{
421 u32 aligned_addr;
422 u32 aligned_len;
423 u32 dif_len;
424 u32 i;
425
426 /* read first nibble byte by byte */
427 aligned_addr = addr & (~0x3);
428 dif_len = addr - aligned_addr;
429 if (dif_len) {
430 /* Start reading at aligned_addr + dif_len */
431 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
432 aligned_addr);
433 for (i = dif_len; i < 4; i++, buf++)
434 write_register_byte(
435 dev, IPW_REG_INDIRECT_ACCESS_DATA + i,
436 *buf);
437
438 len -= dif_len;
439 aligned_addr += 4;
440 }
441
442 /* read DWs through autoincrement registers */
443 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
444 aligned_addr);
445 aligned_len = len & (~0x3);
446 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
447 write_register(
448 dev, IPW_REG_AUTOINCREMENT_DATA, *(u32 *)buf);
449
450 /* copy the last nibble */
451 dif_len = len - aligned_len;
452 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS, aligned_addr);
453 for (i = 0; i < dif_len; i++, buf++)
454 write_register_byte(
455 dev, IPW_REG_INDIRECT_ACCESS_DATA + i, *buf);
456}
457
458static inline void read_nic_memory(struct net_device *dev, u32 addr, u32 len,
459 u8 *buf)
460{
461 u32 aligned_addr;
462 u32 aligned_len;
463 u32 dif_len;
464 u32 i;
465
466 /* read first nibble byte by byte */
467 aligned_addr = addr & (~0x3);
468 dif_len = addr - aligned_addr;
469 if (dif_len) {
470 /* Start reading at aligned_addr + dif_len */
471 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
472 aligned_addr);
473 for (i = dif_len; i < 4; i++, buf++)
474 read_register_byte(
475 dev, IPW_REG_INDIRECT_ACCESS_DATA + i, buf);
476
477 len -= dif_len;
478 aligned_addr += 4;
479 }
480
481 /* read DWs through autoincrement registers */
482 write_register(dev, IPW_REG_AUTOINCREMENT_ADDRESS,
483 aligned_addr);
484 aligned_len = len & (~0x3);
485 for (i = 0; i < aligned_len; i += 4, buf += 4, aligned_addr += 4)
486 read_register(dev, IPW_REG_AUTOINCREMENT_DATA,
487 (u32 *)buf);
488
489 /* copy the last nibble */
490 dif_len = len - aligned_len;
491 write_register(dev, IPW_REG_INDIRECT_ACCESS_ADDRESS,
492 aligned_addr);
493 for (i = 0; i < dif_len; i++, buf++)
494 read_register_byte(dev, IPW_REG_INDIRECT_ACCESS_DATA +
495 i, buf);
496}
497
498static inline int ipw2100_hw_is_adapter_in_system(struct net_device *dev)
499{
500 return (dev->base_addr &&
501 (readl((void *)(dev->base_addr + IPW_REG_DOA_DEBUG_AREA_START))
502 == IPW_DATA_DOA_DEBUG_VALUE));
503}
504
505static int ipw2100_get_ordinal(struct ipw2100_priv *priv, u32 ord,
506 void *val, u32 *len)
507{
508 struct ipw2100_ordinals *ordinals = &priv->ordinals;
509 u32 addr;
510 u32 field_info;
511 u16 field_len;
512 u16 field_count;
513 u32 total_length;
514
515 if (ordinals->table1_addr == 0) {
516 printk(KERN_WARNING DRV_NAME ": attempt to use fw ordinals "
517 "before they have been loaded.\n");
518 return -EINVAL;
519 }
520
521 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
522 if (*len < IPW_ORD_TAB_1_ENTRY_SIZE) {
523 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
524
525 printk(KERN_WARNING DRV_NAME
526 ": ordinal buffer length too small, need %zd\n",
527 IPW_ORD_TAB_1_ENTRY_SIZE);
528
529 return -EINVAL;
530 }
531
532 read_nic_dword(priv->net_dev, ordinals->table1_addr + (ord << 2),
533 &addr);
534 read_nic_dword(priv->net_dev, addr, val);
535
536 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
537
538 return 0;
539 }
540
541 if (IS_ORDINAL_TABLE_TWO(ordinals, ord)) {
542
543 ord -= IPW_START_ORD_TAB_2;
544
545 /* get the address of statistic */
546 read_nic_dword(priv->net_dev, ordinals->table2_addr + (ord << 3),
547 &addr);
548
549 /* get the second DW of statistics ;
550 * two 16-bit words - first is length, second is count */
551 read_nic_dword(priv->net_dev,
552 ordinals->table2_addr + (ord << 3) + sizeof(u32),
553 &field_info);
554
555 /* get each entry length */
556 field_len = *((u16 *)&field_info);
557
558 /* get number of entries */
559 field_count = *(((u16 *)&field_info) + 1);
560
561 /* abort if no enought memory */
562 total_length = field_len * field_count;
563 if (total_length > *len) {
564 *len = total_length;
565 return -EINVAL;
566 }
567
568 *len = total_length;
569 if (!total_length)
570 return 0;
571
572 /* read the ordinal data from the SRAM */
573 read_nic_memory(priv->net_dev, addr, total_length, val);
574
575 return 0;
576 }
577
578 printk(KERN_WARNING DRV_NAME ": ordinal %d neither in table 1 nor "
579 "in table 2\n", ord);
580
581 return -EINVAL;
582}
583
584static int ipw2100_set_ordinal(struct ipw2100_priv *priv, u32 ord, u32 *val,
585 u32 *len)
586{
587 struct ipw2100_ordinals *ordinals = &priv->ordinals;
588 u32 addr;
589
590 if (IS_ORDINAL_TABLE_ONE(ordinals, ord)) {
591 if (*len != IPW_ORD_TAB_1_ENTRY_SIZE) {
592 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
593 IPW_DEBUG_INFO("wrong size\n");
594 return -EINVAL;
595 }
596
597 read_nic_dword(priv->net_dev, ordinals->table1_addr + (ord << 2),
598 &addr);
599
600 write_nic_dword(priv->net_dev, addr, *val);
601
602 *len = IPW_ORD_TAB_1_ENTRY_SIZE;
603
604 return 0;
605 }
606
607 IPW_DEBUG_INFO("wrong table\n");
608 if (IS_ORDINAL_TABLE_TWO(ordinals, ord))
609 return -EINVAL;
610
611 return -EINVAL;
612}
613
614static char *snprint_line(char *buf, size_t count,
615 const u8 *data, u32 len, u32 ofs)
616{
617 int out, i, j, l;
618 char c;
619
620 out = snprintf(buf, count, "%08X", ofs);
621
622 for (l = 0, i = 0; i < 2; i++) {
623 out += snprintf(buf + out, count - out, " ");
624 for (j = 0; j < 8 && l < len; j++, l++)
625 out += snprintf(buf + out, count - out, "%02X ",
626 data[(i * 8 + j)]);
627 for (; j < 8; j++)
628 out += snprintf(buf + out, count - out, " ");
629 }
630
631 out += snprintf(buf + out, count - out, " ");
632 for (l = 0, i = 0; i < 2; i++) {
633 out += snprintf(buf + out, count - out, " ");
634 for (j = 0; j < 8 && l < len; j++, l++) {
635 c = data[(i * 8 + j)];
636 if (!isascii(c) || !isprint(c))
637 c = '.';
638
639 out += snprintf(buf + out, count - out, "%c", c);
640 }
641
642 for (; j < 8; j++)
643 out += snprintf(buf + out, count - out, " ");
644 }
645
646 return buf;
647}
648
649static void printk_buf(int level, const u8 *data, u32 len)
650{
651 char line[81];
652 u32 ofs = 0;
653 if (!(ipw2100_debug_level & level))
654 return;
655
656 while (len) {
657 printk(KERN_DEBUG "%s\n",
658 snprint_line(line, sizeof(line), &data[ofs],
659 min(len, 16U), ofs));
660 ofs += 16;
661 len -= min(len, 16U);
662 }
663}
664
665
666
667#define MAX_RESET_BACKOFF 10
668
669static inline void schedule_reset(struct ipw2100_priv *priv)
670{
671 unsigned long now = get_seconds();
672
673 /* If we haven't received a reset request within the backoff period,
674 * then we can reset the backoff interval so this reset occurs
675 * immediately */
676 if (priv->reset_backoff &&
677 (now - priv->last_reset > priv->reset_backoff))
678 priv->reset_backoff = 0;
679
680 priv->last_reset = get_seconds();
681
682 if (!(priv->status & STATUS_RESET_PENDING)) {
683 IPW_DEBUG_INFO("%s: Scheduling firmware restart (%ds).\n",
684 priv->net_dev->name, priv->reset_backoff);
685 netif_carrier_off(priv->net_dev);
686 netif_stop_queue(priv->net_dev);
687 priv->status |= STATUS_RESET_PENDING;
688 if (priv->reset_backoff)
689 queue_delayed_work(priv->workqueue, &priv->reset_work,
690 priv->reset_backoff * HZ);
691 else
692 queue_work(priv->workqueue, &priv->reset_work);
693
694 if (priv->reset_backoff < MAX_RESET_BACKOFF)
695 priv->reset_backoff++;
696
697 wake_up_interruptible(&priv->wait_command_queue);
698 } else
699 IPW_DEBUG_INFO("%s: Firmware restart already in progress.\n",
700 priv->net_dev->name);
701
702}
703
704#define HOST_COMPLETE_TIMEOUT (2 * HZ)
705static int ipw2100_hw_send_command(struct ipw2100_priv *priv,
706 struct host_command * cmd)
707{
708 struct list_head *element;
709 struct ipw2100_tx_packet *packet;
710 unsigned long flags;
711 int err = 0;
712
713 IPW_DEBUG_HC("Sending %s command (#%d), %d bytes\n",
714 command_types[cmd->host_command], cmd->host_command,
715 cmd->host_command_length);
716 printk_buf(IPW_DL_HC, (u8*)cmd->host_command_parameters,
717 cmd->host_command_length);
718
719 spin_lock_irqsave(&priv->low_lock, flags);
720
721 if (priv->fatal_error) {
722 IPW_DEBUG_INFO("Attempt to send command while hardware in fatal error condition.\n");
723 err = -EIO;
724 goto fail_unlock;
725 }
726
727 if (!(priv->status & STATUS_RUNNING)) {
728 IPW_DEBUG_INFO("Attempt to send command while hardware is not running.\n");
729 err = -EIO;
730 goto fail_unlock;
731 }
732
733 if (priv->status & STATUS_CMD_ACTIVE) {
734 IPW_DEBUG_INFO("Attempt to send command while another command is pending.\n");
735 err = -EBUSY;
736 goto fail_unlock;
737 }
738
739 if (list_empty(&priv->msg_free_list)) {
740 IPW_DEBUG_INFO("no available msg buffers\n");
741 goto fail_unlock;
742 }
743
744 priv->status |= STATUS_CMD_ACTIVE;
745 priv->messages_sent++;
746
747 element = priv->msg_free_list.next;
748
749 packet = list_entry(element, struct ipw2100_tx_packet, list);
750 packet->jiffy_start = jiffies;
751
752 /* initialize the firmware command packet */
753 packet->info.c_struct.cmd->host_command_reg = cmd->host_command;
754 packet->info.c_struct.cmd->host_command_reg1 = cmd->host_command1;
755 packet->info.c_struct.cmd->host_command_len_reg = cmd->host_command_length;
756 packet->info.c_struct.cmd->sequence = cmd->host_command_sequence;
757
758 memcpy(packet->info.c_struct.cmd->host_command_params_reg,
759 cmd->host_command_parameters,
760 sizeof(packet->info.c_struct.cmd->host_command_params_reg));
761
762 list_del(element);
763 DEC_STAT(&priv->msg_free_stat);
764
765 list_add_tail(element, &priv->msg_pend_list);
766 INC_STAT(&priv->msg_pend_stat);
767
768 ipw2100_tx_send_commands(priv);
769 ipw2100_tx_send_data(priv);
770
771 spin_unlock_irqrestore(&priv->low_lock, flags);
772
773 /*
774 * We must wait for this command to complete before another
775 * command can be sent... but if we wait more than 3 seconds
776 * then there is a problem.
777 */
778
779 err = wait_event_interruptible_timeout(
780 priv->wait_command_queue, !(priv->status & STATUS_CMD_ACTIVE),
781 HOST_COMPLETE_TIMEOUT);
782
783 if (err == 0) {
784 IPW_DEBUG_INFO("Command completion failed out after %dms.\n",
785 HOST_COMPLETE_TIMEOUT / (HZ / 100));
786 priv->fatal_error = IPW2100_ERR_MSG_TIMEOUT;
787 priv->status &= ~STATUS_CMD_ACTIVE;
788 schedule_reset(priv);
789 return -EIO;
790 }
791
792 if (priv->fatal_error) {
793 printk(KERN_WARNING DRV_NAME ": %s: firmware fatal error\n",
794 priv->net_dev->name);
795 return -EIO;
796 }
797
798 /* !!!!! HACK TEST !!!!!
799 * When lots of debug trace statements are enabled, the driver
800 * doesn't seem to have as many firmware restart cycles...
801 *
802 * As a test, we're sticking in a 1/100s delay here */
803 set_current_state(TASK_UNINTERRUPTIBLE);
804 schedule_timeout(HZ / 100);
805
806 return 0;
807
808 fail_unlock:
809 spin_unlock_irqrestore(&priv->low_lock, flags);
810
811 return err;
812}
813
814
815/*
816 * Verify the values and data access of the hardware
817 * No locks needed or used. No functions called.
818 */
819static int ipw2100_verify(struct ipw2100_priv *priv)
820{
821 u32 data1, data2;
822 u32 address;
823
824 u32 val1 = 0x76543210;
825 u32 val2 = 0xFEDCBA98;
826
827 /* Domain 0 check - all values should be DOA_DEBUG */
828 for (address = IPW_REG_DOA_DEBUG_AREA_START;
829 address < IPW_REG_DOA_DEBUG_AREA_END;
830 address += sizeof(u32)) {
831 read_register(priv->net_dev, address, &data1);
832 if (data1 != IPW_DATA_DOA_DEBUG_VALUE)
833 return -EIO;
834 }
835
836 /* Domain 1 check - use arbitrary read/write compare */
837 for (address = 0; address < 5; address++) {
838 /* The memory area is not used now */
839 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
840 val1);
841 write_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
842 val2);
843 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x32,
844 &data1);
845 read_register(priv->net_dev, IPW_REG_DOMAIN_1_OFFSET + 0x36,
846 &data2);
847 if (val1 == data1 && val2 == data2)
848 return 0;
849 }
850
851 return -EIO;
852}
853
854/*
855 *
856 * Loop until the CARD_DISABLED bit is the same value as the
857 * supplied parameter
858 *
859 * TODO: See if it would be more efficient to do a wait/wake
860 * cycle and have the completion event trigger the wakeup
861 *
862 */
863#define IPW_CARD_DISABLE_COMPLETE_WAIT 100 // 100 milli
864static int ipw2100_wait_for_card_state(struct ipw2100_priv *priv, int state)
865{
866 int i;
867 u32 card_state;
868 u32 len = sizeof(card_state);
869 int err;
870
871 for (i = 0; i <= IPW_CARD_DISABLE_COMPLETE_WAIT * 1000; i += 50) {
872 err = ipw2100_get_ordinal(priv, IPW_ORD_CARD_DISABLED,
873 &card_state, &len);
874 if (err) {
875 IPW_DEBUG_INFO("Query of CARD_DISABLED ordinal "
876 "failed.\n");
877 return 0;
878 }
879
880 /* We'll break out if either the HW state says it is
881 * in the state we want, or if HOST_COMPLETE command
882 * finishes */
883 if ((card_state == state) ||
884 ((priv->status & STATUS_ENABLED) ?
885 IPW_HW_STATE_ENABLED : IPW_HW_STATE_DISABLED) == state) {
886 if (state == IPW_HW_STATE_ENABLED)
887 priv->status |= STATUS_ENABLED;
888 else
889 priv->status &= ~STATUS_ENABLED;
890
891 return 0;
892 }
893
894 udelay(50);
895 }
896
897 IPW_DEBUG_INFO("ipw2100_wait_for_card_state to %s state timed out\n",
898 state ? "DISABLED" : "ENABLED");
899 return -EIO;
900}
901
902
903/*********************************************************************
904 Procedure : sw_reset_and_clock
905 Purpose : Asserts s/w reset, asserts clock initialization
906 and waits for clock stabilization
907 ********************************************************************/
908static int sw_reset_and_clock(struct ipw2100_priv *priv)
909{
910 int i;
911 u32 r;
912
913 // assert s/w reset
914 write_register(priv->net_dev, IPW_REG_RESET_REG,
915 IPW_AUX_HOST_RESET_REG_SW_RESET);
916
917 // wait for clock stabilization
918 for (i = 0; i < 1000; i++) {
919 udelay(IPW_WAIT_RESET_ARC_COMPLETE_DELAY);
920
921 // check clock ready bit
922 read_register(priv->net_dev, IPW_REG_RESET_REG, &r);
923 if (r & IPW_AUX_HOST_RESET_REG_PRINCETON_RESET)
924 break;
925 }
926
927 if (i == 1000)
928 return -EIO; // TODO: better error value
929
930 /* set "initialization complete" bit to move adapter to
931 * D0 state */
932 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
933 IPW_AUX_HOST_GP_CNTRL_BIT_INIT_DONE);
934
935 /* wait for clock stabilization */
936 for (i = 0; i < 10000; i++) {
937 udelay(IPW_WAIT_CLOCK_STABILIZATION_DELAY * 4);
938
939 /* check clock ready bit */
940 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
941 if (r & IPW_AUX_HOST_GP_CNTRL_BIT_CLOCK_READY)
942 break;
943 }
944
945 if (i == 10000)
946 return -EIO; /* TODO: better error value */
947
948 /* set D0 standby bit */
949 read_register(priv->net_dev, IPW_REG_GP_CNTRL, &r);
950 write_register(priv->net_dev, IPW_REG_GP_CNTRL,
951 r | IPW_AUX_HOST_GP_CNTRL_BIT_HOST_ALLOWS_STANDBY);
952
953 return 0;
954}
955
956/*********************************************************************
957 Procedure : ipw2100_download_firmware
958 Purpose : Initiaze adapter after power on.
959 The sequence is:
960 1. assert s/w reset first!
961 2. awake clocks & wait for clock stabilization
962 3. hold ARC (don't ask me why...)
963 4. load Dino ucode and reset/clock init again
964 5. zero-out shared mem
965 6. download f/w
966 *******************************************************************/
967static int ipw2100_download_firmware(struct ipw2100_priv *priv)
968{
969 u32 address;
970 int err;
971
972#ifndef CONFIG_PM
973 /* Fetch the firmware and microcode */
974 struct ipw2100_fw ipw2100_firmware;
975#endif
976
977 if (priv->fatal_error) {
978 IPW_DEBUG_ERROR("%s: ipw2100_download_firmware called after "
979 "fatal error %d. Interface must be brought down.\n",
980 priv->net_dev->name, priv->fatal_error);
981 return -EINVAL;
982 }
983
984#ifdef CONFIG_PM
985 if (!ipw2100_firmware.version) {
986 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
987 if (err) {
988 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
989 priv->net_dev->name, err);
990 priv->fatal_error = IPW2100_ERR_FW_LOAD;
991 goto fail;
992 }
993 }
994#else
995 err = ipw2100_get_firmware(priv, &ipw2100_firmware);
996 if (err) {
997 IPW_DEBUG_ERROR("%s: ipw2100_get_firmware failed: %d\n",
998 priv->net_dev->name, err);
999 priv->fatal_error = IPW2100_ERR_FW_LOAD;
1000 goto fail;
1001 }
1002#endif
1003 priv->firmware_version = ipw2100_firmware.version;
1004
1005 /* s/w reset and clock stabilization */
1006 err = sw_reset_and_clock(priv);
1007 if (err) {
1008 IPW_DEBUG_ERROR("%s: sw_reset_and_clock failed: %d\n",
1009 priv->net_dev->name, err);
1010 goto fail;
1011 }
1012
1013 err = ipw2100_verify(priv);
1014 if (err) {
1015 IPW_DEBUG_ERROR("%s: ipw2100_verify failed: %d\n",
1016 priv->net_dev->name, err);
1017 goto fail;
1018 }
1019
1020 /* Hold ARC */
1021 write_nic_dword(priv->net_dev,
1022 IPW_INTERNAL_REGISTER_HALT_AND_RESET,
1023 0x80000000);
1024
1025 /* allow ARC to run */
1026 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1027
1028 /* load microcode */
1029 err = ipw2100_ucode_download(priv, &ipw2100_firmware);
1030 if (err) {
1031 printk(KERN_ERR DRV_NAME ": %s: Error loading microcode: %d\n",
1032 priv->net_dev->name, err);
1033 goto fail;
1034 }
1035
1036 /* release ARC */
1037 write_nic_dword(priv->net_dev,
1038 IPW_INTERNAL_REGISTER_HALT_AND_RESET,
1039 0x00000000);
1040
1041 /* s/w reset and clock stabilization (again!!!) */
1042 err = sw_reset_and_clock(priv);
1043 if (err) {
1044 printk(KERN_ERR DRV_NAME ": %s: sw_reset_and_clock failed: %d\n",
1045 priv->net_dev->name, err);
1046 goto fail;
1047 }
1048
1049 /* load f/w */
1050 err = ipw2100_fw_download(priv, &ipw2100_firmware);
1051 if (err) {
1052 IPW_DEBUG_ERROR("%s: Error loading firmware: %d\n",
1053 priv->net_dev->name, err);
1054 goto fail;
1055 }
1056
1057#ifndef CONFIG_PM
1058 /*
1059 * When the .resume method of the driver is called, the other
1060 * part of the system, i.e. the ide driver could still stay in
1061 * the suspend stage. This prevents us from loading the firmware
1062 * from the disk. --YZ
1063 */
1064
1065 /* free any storage allocated for firmware image */
1066 ipw2100_release_firmware(priv, &ipw2100_firmware);
1067#endif
1068
1069 /* zero out Domain 1 area indirectly (Si requirement) */
1070 for (address = IPW_HOST_FW_SHARED_AREA0;
1071 address < IPW_HOST_FW_SHARED_AREA0_END; address += 4)
1072 write_nic_dword(priv->net_dev, address, 0);
1073 for (address = IPW_HOST_FW_SHARED_AREA1;
1074 address < IPW_HOST_FW_SHARED_AREA1_END; address += 4)
1075 write_nic_dword(priv->net_dev, address, 0);
1076 for (address = IPW_HOST_FW_SHARED_AREA2;
1077 address < IPW_HOST_FW_SHARED_AREA2_END; address += 4)
1078 write_nic_dword(priv->net_dev, address, 0);
1079 for (address = IPW_HOST_FW_SHARED_AREA3;
1080 address < IPW_HOST_FW_SHARED_AREA3_END; address += 4)
1081 write_nic_dword(priv->net_dev, address, 0);
1082 for (address = IPW_HOST_FW_INTERRUPT_AREA;
1083 address < IPW_HOST_FW_INTERRUPT_AREA_END; address += 4)
1084 write_nic_dword(priv->net_dev, address, 0);
1085
1086 return 0;
1087
1088 fail:
1089 ipw2100_release_firmware(priv, &ipw2100_firmware);
1090 return err;
1091}
1092
1093static inline void ipw2100_enable_interrupts(struct ipw2100_priv *priv)
1094{
1095 if (priv->status & STATUS_INT_ENABLED)
1096 return;
1097 priv->status |= STATUS_INT_ENABLED;
1098 write_register(priv->net_dev, IPW_REG_INTA_MASK, IPW_INTERRUPT_MASK);
1099}
1100
1101static inline void ipw2100_disable_interrupts(struct ipw2100_priv *priv)
1102{
1103 if (!(priv->status & STATUS_INT_ENABLED))
1104 return;
1105 priv->status &= ~STATUS_INT_ENABLED;
1106 write_register(priv->net_dev, IPW_REG_INTA_MASK, 0x0);
1107}
1108
1109
1110static void ipw2100_initialize_ordinals(struct ipw2100_priv *priv)
1111{
1112 struct ipw2100_ordinals *ord = &priv->ordinals;
1113
1114 IPW_DEBUG_INFO("enter\n");
1115
1116 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_1,
1117 &ord->table1_addr);
1118
1119 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_ORDINALS_TABLE_2,
1120 &ord->table2_addr);
1121
1122 read_nic_dword(priv->net_dev, ord->table1_addr, &ord->table1_size);
1123 read_nic_dword(priv->net_dev, ord->table2_addr, &ord->table2_size);
1124
1125 ord->table2_size &= 0x0000FFFF;
1126
1127 IPW_DEBUG_INFO("table 1 size: %d\n", ord->table1_size);
1128 IPW_DEBUG_INFO("table 2 size: %d\n", ord->table2_size);
1129 IPW_DEBUG_INFO("exit\n");
1130}
1131
1132static inline void ipw2100_hw_set_gpio(struct ipw2100_priv *priv)
1133{
1134 u32 reg = 0;
1135 /*
1136 * Set GPIO 3 writable by FW; GPIO 1 writable
1137 * by driver and enable clock
1138 */
1139 reg = (IPW_BIT_GPIO_GPIO3_MASK | IPW_BIT_GPIO_GPIO1_ENABLE |
1140 IPW_BIT_GPIO_LED_OFF);
1141 write_register(priv->net_dev, IPW_REG_GPIO, reg);
1142}
1143
1144static inline int rf_kill_active(struct ipw2100_priv *priv)
1145{
1146#define MAX_RF_KILL_CHECKS 5
1147#define RF_KILL_CHECK_DELAY 40
1148
1149 unsigned short value = 0;
1150 u32 reg = 0;
1151 int i;
1152
1153 if (!(priv->hw_features & HW_FEATURE_RFKILL)) {
1154 priv->status &= ~STATUS_RF_KILL_HW;
1155 return 0;
1156 }
1157
1158 for (i = 0; i < MAX_RF_KILL_CHECKS; i++) {
1159 udelay(RF_KILL_CHECK_DELAY);
1160 read_register(priv->net_dev, IPW_REG_GPIO, &reg);
1161 value = (value << 1) | ((reg & IPW_BIT_GPIO_RF_KILL) ? 0 : 1);
1162 }
1163
1164 if (value == 0)
1165 priv->status |= STATUS_RF_KILL_HW;
1166 else
1167 priv->status &= ~STATUS_RF_KILL_HW;
1168
1169 return (value == 0);
1170}
1171
1172static int ipw2100_get_hw_features(struct ipw2100_priv *priv)
1173{
1174 u32 addr, len;
1175 u32 val;
1176
1177 /*
1178 * EEPROM_SRAM_DB_START_ADDRESS using ordinal in ordinal table 1
1179 */
1180 len = sizeof(addr);
1181 if (ipw2100_get_ordinal(
1182 priv, IPW_ORD_EEPROM_SRAM_DB_BLOCK_START_ADDRESS,
1183 &addr, &len)) {
1184 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1185 __LINE__);
1186 return -EIO;
1187 }
1188
1189 IPW_DEBUG_INFO("EEPROM address: %08X\n", addr);
1190
1191 /*
1192 * EEPROM version is the byte at offset 0xfd in firmware
1193 * We read 4 bytes, then shift out the byte we actually want */
1194 read_nic_dword(priv->net_dev, addr + 0xFC, &val);
1195 priv->eeprom_version = (val >> 24) & 0xFF;
1196 IPW_DEBUG_INFO("EEPROM version: %d\n", priv->eeprom_version);
1197
1198 /*
1199 * HW RF Kill enable is bit 0 in byte at offset 0x21 in firmware
1200 *
1201 * notice that the EEPROM bit is reverse polarity, i.e.
1202 * bit = 0 signifies HW RF kill switch is supported
1203 * bit = 1 signifies HW RF kill switch is NOT supported
1204 */
1205 read_nic_dword(priv->net_dev, addr + 0x20, &val);
1206 if (!((val >> 24) & 0x01))
1207 priv->hw_features |= HW_FEATURE_RFKILL;
1208
1209 IPW_DEBUG_INFO("HW RF Kill: %ssupported.\n",
1210 (priv->hw_features & HW_FEATURE_RFKILL) ?
1211 "" : "not ");
1212
1213 return 0;
1214}
1215
1216/*
1217 * Start firmware execution after power on and intialization
1218 * The sequence is:
1219 * 1. Release ARC
1220 * 2. Wait for f/w initialization completes;
1221 */
1222static int ipw2100_start_adapter(struct ipw2100_priv *priv)
1223{
1224 int i;
1225 u32 inta, inta_mask, gpio;
1226
1227 IPW_DEBUG_INFO("enter\n");
1228
1229 if (priv->status & STATUS_RUNNING)
1230 return 0;
1231
1232 /*
1233 * Initialize the hw - drive adapter to DO state by setting
1234 * init_done bit. Wait for clk_ready bit and Download
1235 * fw & dino ucode
1236 */
1237 if (ipw2100_download_firmware(priv)) {
1238 printk(KERN_ERR DRV_NAME ": %s: Failed to power on the adapter.\n",
1239 priv->net_dev->name);
1240 return -EIO;
1241 }
1242
1243 /* Clear the Tx, Rx and Msg queues and the r/w indexes
1244 * in the firmware RBD and TBD ring queue */
1245 ipw2100_queues_initialize(priv);
1246
1247 ipw2100_hw_set_gpio(priv);
1248
1249 /* TODO -- Look at disabling interrupts here to make sure none
1250 * get fired during FW initialization */
1251
1252 /* Release ARC - clear reset bit */
1253 write_register(priv->net_dev, IPW_REG_RESET_REG, 0);
1254
1255 /* wait for f/w intialization complete */
1256 IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n");
1257 i = 5000;
1258 do {
1259 set_current_state(TASK_UNINTERRUPTIBLE);
1260 schedule_timeout(40 * HZ / 1000);
1261 /* Todo... wait for sync command ... */
1262
1263 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1264
1265 /* check "init done" bit */
1266 if (inta & IPW2100_INTA_FW_INIT_DONE) {
1267 /* reset "init done" bit */
1268 write_register(priv->net_dev, IPW_REG_INTA,
1269 IPW2100_INTA_FW_INIT_DONE);
1270 break;
1271 }
1272
1273 /* check error conditions : we check these after the firmware
1274 * check so that if there is an error, the interrupt handler
1275 * will see it and the adapter will be reset */
1276 if (inta &
1277 (IPW2100_INTA_FATAL_ERROR | IPW2100_INTA_PARITY_ERROR)) {
1278 /* clear error conditions */
1279 write_register(priv->net_dev, IPW_REG_INTA,
1280 IPW2100_INTA_FATAL_ERROR |
1281 IPW2100_INTA_PARITY_ERROR);
1282 }
1283 } while (i--);
1284
1285 /* Clear out any pending INTAs since we aren't supposed to have
1286 * interrupts enabled at this point... */
1287 read_register(priv->net_dev, IPW_REG_INTA, &inta);
1288 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
1289 inta &= IPW_INTERRUPT_MASK;
1290 /* Clear out any pending interrupts */
1291 if (inta & inta_mask)
1292 write_register(priv->net_dev, IPW_REG_INTA, inta);
1293
1294 IPW_DEBUG_FW("f/w initialization complete: %s\n",
1295 i ? "SUCCESS" : "FAILED");
1296
1297 if (!i) {
1298 printk(KERN_WARNING DRV_NAME ": %s: Firmware did not initialize.\n",
1299 priv->net_dev->name);
1300 return -EIO;
1301 }
1302
1303 /* allow firmware to write to GPIO1 & GPIO3 */
1304 read_register(priv->net_dev, IPW_REG_GPIO, &gpio);
1305
1306 gpio |= (IPW_BIT_GPIO_GPIO1_MASK | IPW_BIT_GPIO_GPIO3_MASK);
1307
1308 write_register(priv->net_dev, IPW_REG_GPIO, gpio);
1309
1310 /* Ready to receive commands */
1311 priv->status |= STATUS_RUNNING;
1312
1313 /* The adapter has been reset; we are not associated */
1314 priv->status &= ~(STATUS_ASSOCIATING | STATUS_ASSOCIATED);
1315
1316 IPW_DEBUG_INFO("exit\n");
1317
1318 return 0;
1319}
1320
1321static inline void ipw2100_reset_fatalerror(struct ipw2100_priv *priv)
1322{
1323 if (!priv->fatal_error)
1324 return;
1325
1326 priv->fatal_errors[priv->fatal_index++] = priv->fatal_error;
1327 priv->fatal_index %= IPW2100_ERROR_QUEUE;
1328 priv->fatal_error = 0;
1329}
1330
1331
1332/* NOTE: Our interrupt is disabled when this method is called */
1333static int ipw2100_power_cycle_adapter(struct ipw2100_priv *priv)
1334{
1335 u32 reg;
1336 int i;
1337
1338 IPW_DEBUG_INFO("Power cycling the hardware.\n");
1339
1340 ipw2100_hw_set_gpio(priv);
1341
1342 /* Step 1. Stop Master Assert */
1343 write_register(priv->net_dev, IPW_REG_RESET_REG,
1344 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1345
1346 /* Step 2. Wait for stop Master Assert
1347 * (not more then 50us, otherwise ret error */
1348 i = 5;
1349 do {
1350 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
1351 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1352
1353 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1354 break;
1355 } while(i--);
1356
1357 priv->status &= ~STATUS_RESET_PENDING;
1358
1359 if (!i) {
1360 IPW_DEBUG_INFO("exit - waited too long for master assert stop\n");
1361 return -EIO;
1362 }
1363
1364 write_register(priv->net_dev, IPW_REG_RESET_REG,
1365 IPW_AUX_HOST_RESET_REG_SW_RESET);
1366
1367
1368 /* Reset any fatal_error conditions */
1369 ipw2100_reset_fatalerror(priv);
1370
1371 /* At this point, the adapter is now stopped and disabled */
1372 priv->status &= ~(STATUS_RUNNING | STATUS_ASSOCIATING |
1373 STATUS_ASSOCIATED | STATUS_ENABLED);
1374
1375 return 0;
1376}
1377
1378/*
1379 * Send the CARD_DISABLE_PHY_OFF comamnd to the card to disable it
1380 *
1381 * After disabling, if the card was associated, a STATUS_ASSN_LOST will be sent.
1382 *
1383 * STATUS_CARD_DISABLE_NOTIFICATION will be sent regardless of
1384 * if STATUS_ASSN_LOST is sent.
1385 */
1386static int ipw2100_hw_phy_off(struct ipw2100_priv *priv)
1387{
1388
1389#define HW_PHY_OFF_LOOP_DELAY (HZ / 5000)
1390
1391 struct host_command cmd = {
1392 .host_command = CARD_DISABLE_PHY_OFF,
1393 .host_command_sequence = 0,
1394 .host_command_length = 0,
1395 };
1396 int err, i;
1397 u32 val1, val2;
1398
1399 IPW_DEBUG_HC("CARD_DISABLE_PHY_OFF\n");
1400
1401 /* Turn off the radio */
1402 err = ipw2100_hw_send_command(priv, &cmd);
1403 if (err)
1404 return err;
1405
1406 for (i = 0; i < 2500; i++) {
1407 read_nic_dword(priv->net_dev, IPW2100_CONTROL_REG, &val1);
1408 read_nic_dword(priv->net_dev, IPW2100_COMMAND, &val2);
1409
1410 if ((val1 & IPW2100_CONTROL_PHY_OFF) &&
1411 (val2 & IPW2100_COMMAND_PHY_OFF))
1412 return 0;
1413
1414 set_current_state(TASK_UNINTERRUPTIBLE);
1415 schedule_timeout(HW_PHY_OFF_LOOP_DELAY);
1416 }
1417
1418 return -EIO;
1419}
1420
1421
1422static int ipw2100_enable_adapter(struct ipw2100_priv *priv)
1423{
1424 struct host_command cmd = {
1425 .host_command = HOST_COMPLETE,
1426 .host_command_sequence = 0,
1427 .host_command_length = 0
1428 };
1429 int err = 0;
1430
1431 IPW_DEBUG_HC("HOST_COMPLETE\n");
1432
1433 if (priv->status & STATUS_ENABLED)
1434 return 0;
1435
1436 down(&priv->adapter_sem);
1437
1438 if (rf_kill_active(priv)) {
1439 IPW_DEBUG_HC("Command aborted due to RF kill active.\n");
1440 goto fail_up;
1441 }
1442
1443 err = ipw2100_hw_send_command(priv, &cmd);
1444 if (err) {
1445 IPW_DEBUG_INFO("Failed to send HOST_COMPLETE command\n");
1446 goto fail_up;
1447 }
1448
1449 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_ENABLED);
1450 if (err) {
1451 IPW_DEBUG_INFO(
1452 "%s: card not responding to init command.\n",
1453 priv->net_dev->name);
1454 goto fail_up;
1455 }
1456
1457 if (priv->stop_hang_check) {
1458 priv->stop_hang_check = 0;
1459 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
1460 }
1461
1462fail_up:
1463 up(&priv->adapter_sem);
1464 return err;
1465}
1466
1467static int ipw2100_hw_stop_adapter(struct ipw2100_priv *priv)
1468{
1469#define HW_POWER_DOWN_DELAY (HZ / 10)
1470
1471 struct host_command cmd = {
1472 .host_command = HOST_PRE_POWER_DOWN,
1473 .host_command_sequence = 0,
1474 .host_command_length = 0,
1475 };
1476 int err, i;
1477 u32 reg;
1478
1479 if (!(priv->status & STATUS_RUNNING))
1480 return 0;
1481
1482 priv->status |= STATUS_STOPPING;
1483
1484 /* We can only shut down the card if the firmware is operational. So,
1485 * if we haven't reset since a fatal_error, then we can not send the
1486 * shutdown commands. */
1487 if (!priv->fatal_error) {
1488 /* First, make sure the adapter is enabled so that the PHY_OFF
1489 * command can shut it down */
1490 ipw2100_enable_adapter(priv);
1491
1492 err = ipw2100_hw_phy_off(priv);
1493 if (err)
1494 printk(KERN_WARNING DRV_NAME ": Error disabling radio %d\n", err);
1495
1496 /*
1497 * If in D0-standby mode going directly to D3 may cause a
1498 * PCI bus violation. Therefore we must change out of the D0
1499 * state.
1500 *
1501 * Sending the PREPARE_FOR_POWER_DOWN will restrict the
1502 * hardware from going into standby mode and will transition
1503 * out of D0-standy if it is already in that state.
1504 *
1505 * STATUS_PREPARE_POWER_DOWN_COMPLETE will be sent by the
1506 * driver upon completion. Once received, the driver can
1507 * proceed to the D3 state.
1508 *
1509 * Prepare for power down command to fw. This command would
1510 * take HW out of D0-standby and prepare it for D3 state.
1511 *
1512 * Currently FW does not support event notification for this
1513 * event. Therefore, skip waiting for it. Just wait a fixed
1514 * 100ms
1515 */
1516 IPW_DEBUG_HC("HOST_PRE_POWER_DOWN\n");
1517
1518 err = ipw2100_hw_send_command(priv, &cmd);
1519 if (err)
1520 printk(KERN_WARNING DRV_NAME ": "
1521 "%s: Power down command failed: Error %d\n",
1522 priv->net_dev->name, err);
1523 else {
1524 set_current_state(TASK_UNINTERRUPTIBLE);
1525 schedule_timeout(HW_POWER_DOWN_DELAY);
1526 }
1527 }
1528
1529 priv->status &= ~STATUS_ENABLED;
1530
1531 /*
1532 * Set GPIO 3 writable by FW; GPIO 1 writable
1533 * by driver and enable clock
1534 */
1535 ipw2100_hw_set_gpio(priv);
1536
1537 /*
1538 * Power down adapter. Sequence:
1539 * 1. Stop master assert (RESET_REG[9]=1)
1540 * 2. Wait for stop master (RESET_REG[8]==1)
1541 * 3. S/w reset assert (RESET_REG[7] = 1)
1542 */
1543
1544 /* Stop master assert */
1545 write_register(priv->net_dev, IPW_REG_RESET_REG,
1546 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
1547
1548 /* wait stop master not more than 50 usec.
1549 * Otherwise return error. */
1550 for (i = 5; i > 0; i--) {
1551 udelay(10);
1552
1553 /* Check master stop bit */
1554 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
1555
1556 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
1557 break;
1558 }
1559
1560 if (i == 0)
1561 printk(KERN_WARNING DRV_NAME
1562 ": %s: Could now power down adapter.\n",
1563 priv->net_dev->name);
1564
1565 /* assert s/w reset */
1566 write_register(priv->net_dev, IPW_REG_RESET_REG,
1567 IPW_AUX_HOST_RESET_REG_SW_RESET);
1568
1569 priv->status &= ~(STATUS_RUNNING | STATUS_STOPPING);
1570
1571 return 0;
1572}
1573
1574
1575static int ipw2100_disable_adapter(struct ipw2100_priv *priv)
1576{
1577 struct host_command cmd = {
1578 .host_command = CARD_DISABLE,
1579 .host_command_sequence = 0,
1580 .host_command_length = 0
1581 };
1582 int err = 0;
1583
1584 IPW_DEBUG_HC("CARD_DISABLE\n");
1585
1586 if (!(priv->status & STATUS_ENABLED))
1587 return 0;
1588
1589 /* Make sure we clear the associated state */
1590 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1591
1592 if (!priv->stop_hang_check) {
1593 priv->stop_hang_check = 1;
1594 cancel_delayed_work(&priv->hang_check);
1595 }
1596
1597 down(&priv->adapter_sem);
1598
1599 err = ipw2100_hw_send_command(priv, &cmd);
1600 if (err) {
1601 printk(KERN_WARNING DRV_NAME ": exit - failed to send CARD_DISABLE command\n");
1602 goto fail_up;
1603 }
1604
1605 err = ipw2100_wait_for_card_state(priv, IPW_HW_STATE_DISABLED);
1606 if (err) {
1607 printk(KERN_WARNING DRV_NAME ": exit - card failed to change to DISABLED\n");
1608 goto fail_up;
1609 }
1610
1611 IPW_DEBUG_INFO("TODO: implement scan state machine\n");
1612
1613fail_up:
1614 up(&priv->adapter_sem);
1615 return err;
1616}
1617
1618static int ipw2100_set_scan_options(struct ipw2100_priv *priv)
1619{
1620 struct host_command cmd = {
1621 .host_command = SET_SCAN_OPTIONS,
1622 .host_command_sequence = 0,
1623 .host_command_length = 8
1624 };
1625 int err;
1626
1627 IPW_DEBUG_INFO("enter\n");
1628
1629 IPW_DEBUG_SCAN("setting scan options\n");
1630
1631 cmd.host_command_parameters[0] = 0;
1632
1633 if (!(priv->config & CFG_ASSOCIATE))
1634 cmd.host_command_parameters[0] |= IPW_SCAN_NOASSOCIATE;
1635 if ((priv->sec.flags & SEC_ENABLED) && priv->sec.enabled)
1636 cmd.host_command_parameters[0] |= IPW_SCAN_MIXED_CELL;
1637 if (priv->config & CFG_PASSIVE_SCAN)
1638 cmd.host_command_parameters[0] |= IPW_SCAN_PASSIVE;
1639
1640 cmd.host_command_parameters[1] = priv->channel_mask;
1641
1642 err = ipw2100_hw_send_command(priv, &cmd);
1643
1644 IPW_DEBUG_HC("SET_SCAN_OPTIONS 0x%04X\n",
1645 cmd.host_command_parameters[0]);
1646
1647 return err;
1648}
1649
1650static int ipw2100_start_scan(struct ipw2100_priv *priv)
1651{
1652 struct host_command cmd = {
1653 .host_command = BROADCAST_SCAN,
1654 .host_command_sequence = 0,
1655 .host_command_length = 4
1656 };
1657 int err;
1658
1659 IPW_DEBUG_HC("START_SCAN\n");
1660
1661 cmd.host_command_parameters[0] = 0;
1662
1663 /* No scanning if in monitor mode */
1664 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
1665 return 1;
1666
1667 if (priv->status & STATUS_SCANNING) {
1668 IPW_DEBUG_SCAN("Scan requested while already in scan...\n");
1669 return 0;
1670 }
1671
1672 IPW_DEBUG_INFO("enter\n");
1673
1674 /* Not clearing here; doing so makes iwlist always return nothing...
1675 *
1676 * We should modify the table logic to use aging tables vs. clearing
1677 * the table on each scan start.
1678 */
1679 IPW_DEBUG_SCAN("starting scan\n");
1680
1681 priv->status |= STATUS_SCANNING;
1682 err = ipw2100_hw_send_command(priv, &cmd);
1683 if (err)
1684 priv->status &= ~STATUS_SCANNING;
1685
1686 IPW_DEBUG_INFO("exit\n");
1687
1688 return err;
1689}
1690
1691static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
1692{
1693 unsigned long flags;
1694 int rc = 0;
1695 u32 lock;
1696 u32 ord_len = sizeof(lock);
1697
1698 /* Quite if manually disabled. */
1699 if (priv->status & STATUS_RF_KILL_SW) {
1700 IPW_DEBUG_INFO("%s: Radio is disabled by Manual Disable "
1701 "switch\n", priv->net_dev->name);
1702 return 0;
1703 }
1704
1705 /* If the interrupt is enabled, turn it off... */
1706 spin_lock_irqsave(&priv->low_lock, flags);
1707 ipw2100_disable_interrupts(priv);
1708
1709 /* Reset any fatal_error conditions */
1710 ipw2100_reset_fatalerror(priv);
1711 spin_unlock_irqrestore(&priv->low_lock, flags);
1712
1713 if (priv->status & STATUS_POWERED ||
1714 (priv->status & STATUS_RESET_PENDING)) {
1715 /* Power cycle the card ... */
1716 if (ipw2100_power_cycle_adapter(priv)) {
1717 printk(KERN_WARNING DRV_NAME ": %s: Could not cycle adapter.\n",
1718 priv->net_dev->name);
1719 rc = 1;
1720 goto exit;
1721 }
1722 } else
1723 priv->status |= STATUS_POWERED;
1724
1725 /* Load the firmware, start the clocks, etc. */
1726 if (ipw2100_start_adapter(priv)) {
1727 printk(KERN_ERR DRV_NAME ": %s: Failed to start the firmware.\n",
1728 priv->net_dev->name);
1729 rc = 1;
1730 goto exit;
1731 }
1732
1733 ipw2100_initialize_ordinals(priv);
1734
1735 /* Determine capabilities of this particular HW configuration */
1736 if (ipw2100_get_hw_features(priv)) {
1737 printk(KERN_ERR DRV_NAME ": %s: Failed to determine HW features.\n",
1738 priv->net_dev->name);
1739 rc = 1;
1740 goto exit;
1741 }
1742
1743 lock = LOCK_NONE;
1744 if (ipw2100_set_ordinal(priv, IPW_ORD_PERS_DB_LOCK, &lock, &ord_len)) {
1745 printk(KERN_ERR DRV_NAME ": %s: Failed to clear ordinal lock.\n",
1746 priv->net_dev->name);
1747 rc = 1;
1748 goto exit;
1749 }
1750
1751 priv->status &= ~STATUS_SCANNING;
1752
1753 if (rf_kill_active(priv)) {
1754 printk(KERN_INFO "%s: Radio is disabled by RF switch.\n",
1755 priv->net_dev->name);
1756
1757 if (priv->stop_rf_kill) {
1758 priv->stop_rf_kill = 0;
1759 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
1760 }
1761
1762 deferred = 1;
1763 }
1764
1765 /* Turn on the interrupt so that commands can be processed */
1766 ipw2100_enable_interrupts(priv);
1767
1768 /* Send all of the commands that must be sent prior to
1769 * HOST_COMPLETE */
1770 if (ipw2100_adapter_setup(priv)) {
1771 printk(KERN_ERR DRV_NAME ": %s: Failed to start the card.\n",
1772 priv->net_dev->name);
1773 rc = 1;
1774 goto exit;
1775 }
1776
1777 if (!deferred) {
1778 /* Enable the adapter - sends HOST_COMPLETE */
1779 if (ipw2100_enable_adapter(priv)) {
1780 printk(KERN_ERR DRV_NAME ": "
1781 "%s: failed in call to enable adapter.\n",
1782 priv->net_dev->name);
1783 ipw2100_hw_stop_adapter(priv);
1784 rc = 1;
1785 goto exit;
1786 }
1787
1788
1789 /* Start a scan . . . */
1790 ipw2100_set_scan_options(priv);
1791 ipw2100_start_scan(priv);
1792 }
1793
1794 exit:
1795 return rc;
1796}
1797
1798/* Called by register_netdev() */
1799static int ipw2100_net_init(struct net_device *dev)
1800{
1801 struct ipw2100_priv *priv = ieee80211_priv(dev);
1802 return ipw2100_up(priv, 1);
1803}
1804
1805static void ipw2100_down(struct ipw2100_priv *priv)
1806{
1807 unsigned long flags;
1808 union iwreq_data wrqu = {
1809 .ap_addr = {
1810 .sa_family = ARPHRD_ETHER
1811 }
1812 };
1813 int associated = priv->status & STATUS_ASSOCIATED;
1814
1815 /* Kill the RF switch timer */
1816 if (!priv->stop_rf_kill) {
1817 priv->stop_rf_kill = 1;
1818 cancel_delayed_work(&priv->rf_kill);
1819 }
1820
1821 /* Kill the firmare hang check timer */
1822 if (!priv->stop_hang_check) {
1823 priv->stop_hang_check = 1;
1824 cancel_delayed_work(&priv->hang_check);
1825 }
1826
1827 /* Kill any pending resets */
1828 if (priv->status & STATUS_RESET_PENDING)
1829 cancel_delayed_work(&priv->reset_work);
1830
1831 /* Make sure the interrupt is on so that FW commands will be
1832 * processed correctly */
1833 spin_lock_irqsave(&priv->low_lock, flags);
1834 ipw2100_enable_interrupts(priv);
1835 spin_unlock_irqrestore(&priv->low_lock, flags);
1836
1837 if (ipw2100_hw_stop_adapter(priv))
1838 printk(KERN_ERR DRV_NAME ": %s: Error stopping adapter.\n",
1839 priv->net_dev->name);
1840
1841 /* Do not disable the interrupt until _after_ we disable
1842 * the adaptor. Otherwise the CARD_DISABLE command will never
1843 * be ack'd by the firmware */
1844 spin_lock_irqsave(&priv->low_lock, flags);
1845 ipw2100_disable_interrupts(priv);
1846 spin_unlock_irqrestore(&priv->low_lock, flags);
1847
1848#ifdef ACPI_CSTATE_LIMIT_DEFINED
1849 if (priv->config & CFG_C3_DISABLED) {
1850 IPW_DEBUG_INFO(DRV_NAME ": Resetting C3 transitions.\n");
1851 acpi_set_cstate_limit(priv->cstate_limit);
1852 priv->config &= ~CFG_C3_DISABLED;
1853 }
1854#endif
1855
1856 /* We have to signal any supplicant if we are disassociating */
1857 if (associated)
1858 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1859
1860 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1861 netif_carrier_off(priv->net_dev);
1862 netif_stop_queue(priv->net_dev);
1863}
1864
1865static void ipw2100_reset_adapter(struct ipw2100_priv *priv)
1866{
1867 unsigned long flags;
1868 union iwreq_data wrqu = {
1869 .ap_addr = {
1870 .sa_family = ARPHRD_ETHER
1871 }
1872 };
1873 int associated = priv->status & STATUS_ASSOCIATED;
1874
1875 spin_lock_irqsave(&priv->low_lock, flags);
1876 IPW_DEBUG_INFO(DRV_NAME ": %s: Restarting adapter.\n",
1877 priv->net_dev->name);
1878 priv->resets++;
1879 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
1880 priv->status |= STATUS_SECURITY_UPDATED;
1881
1882 /* Force a power cycle even if interface hasn't been opened
1883 * yet */
1884 cancel_delayed_work(&priv->reset_work);
1885 priv->status |= STATUS_RESET_PENDING;
1886 spin_unlock_irqrestore(&priv->low_lock, flags);
1887
1888 down(&priv->action_sem);
1889 /* stop timed checks so that they don't interfere with reset */
1890 priv->stop_hang_check = 1;
1891 cancel_delayed_work(&priv->hang_check);
1892
1893 /* We have to signal any supplicant if we are disassociating */
1894 if (associated)
1895 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
1896
1897 ipw2100_up(priv, 0);
1898 up(&priv->action_sem);
1899
1900}
1901
1902
1903static void isr_indicate_associated(struct ipw2100_priv *priv, u32 status)
1904{
1905
1906#define MAC_ASSOCIATION_READ_DELAY (HZ)
1907 int ret, len, essid_len;
1908 char essid[IW_ESSID_MAX_SIZE];
1909 u32 txrate;
1910 u32 chan;
1911 char *txratename;
1912 u8 bssid[ETH_ALEN];
1913
1914 /*
1915 * TBD: BSSID is usually 00:00:00:00:00:00 here and not
1916 * an actual MAC of the AP. Seems like FW sets this
1917 * address too late. Read it later and expose through
1918 * /proc or schedule a later task to query and update
1919 */
1920
1921 essid_len = IW_ESSID_MAX_SIZE;
1922 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID,
1923 essid, &essid_len);
1924 if (ret) {
1925 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1926 __LINE__);
1927 return;
1928 }
1929
1930 len = sizeof(u32);
1931 ret = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE,
1932 &txrate, &len);
1933 if (ret) {
1934 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1935 __LINE__);
1936 return;
1937 }
1938
1939 len = sizeof(u32);
1940 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &len);
1941 if (ret) {
1942 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1943 __LINE__);
1944 return;
1945 }
1946 len = ETH_ALEN;
1947 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID, &bssid, &len);
1948 if (ret) {
1949 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
1950 __LINE__);
1951 return;
1952 }
1953 memcpy(priv->ieee->bssid, bssid, ETH_ALEN);
1954
1955
1956 switch (txrate) {
1957 case TX_RATE_1_MBIT:
1958 txratename = "1Mbps";
1959 break;
1960 case TX_RATE_2_MBIT:
1961 txratename = "2Mbsp";
1962 break;
1963 case TX_RATE_5_5_MBIT:
1964 txratename = "5.5Mbps";
1965 break;
1966 case TX_RATE_11_MBIT:
1967 txratename = "11Mbps";
1968 break;
1969 default:
1970 IPW_DEBUG_INFO("Unknown rate: %d\n", txrate);
1971 txratename = "unknown rate";
1972 break;
1973 }
1974
1975 IPW_DEBUG_INFO("%s: Associated with '%s' at %s, channel %d (BSSID="
1976 MAC_FMT ")\n",
1977 priv->net_dev->name, escape_essid(essid, essid_len),
1978 txratename, chan, MAC_ARG(bssid));
1979
1980 /* now we copy read ssid into dev */
1981 if (!(priv->config & CFG_STATIC_ESSID)) {
1982 priv->essid_len = min((u8)essid_len, (u8)IW_ESSID_MAX_SIZE);
1983 memcpy(priv->essid, essid, priv->essid_len);
1984 }
1985 priv->channel = chan;
1986 memcpy(priv->bssid, bssid, ETH_ALEN);
1987
1988 priv->status |= STATUS_ASSOCIATING;
1989 priv->connect_start = get_seconds();
1990
1991 queue_delayed_work(priv->workqueue, &priv->wx_event_work, HZ / 10);
1992}
1993
1994
1995static int ipw2100_set_essid(struct ipw2100_priv *priv, char *essid,
1996 int length, int batch_mode)
1997{
1998 int ssid_len = min(length, IW_ESSID_MAX_SIZE);
1999 struct host_command cmd = {
2000 .host_command = SSID,
2001 .host_command_sequence = 0,
2002 .host_command_length = ssid_len
2003 };
2004 int err;
2005
2006 IPW_DEBUG_HC("SSID: '%s'\n", escape_essid(essid, ssid_len));
2007
2008 if (ssid_len)
2009 memcpy((char*)cmd.host_command_parameters,
2010 essid, ssid_len);
2011
2012 if (!batch_mode) {
2013 err = ipw2100_disable_adapter(priv);
2014 if (err)
2015 return err;
2016 }
2017
2018 /* Bug in FW currently doesn't honor bit 0 in SET_SCAN_OPTIONS to
2019 * disable auto association -- so we cheat by setting a bogus SSID */
2020 if (!ssid_len && !(priv->config & CFG_ASSOCIATE)) {
2021 int i;
2022 u8 *bogus = (u8*)cmd.host_command_parameters;
2023 for (i = 0; i < IW_ESSID_MAX_SIZE; i++)
2024 bogus[i] = 0x18 + i;
2025 cmd.host_command_length = IW_ESSID_MAX_SIZE;
2026 }
2027
2028 /* NOTE: We always send the SSID command even if the provided ESSID is
2029 * the same as what we currently think is set. */
2030
2031 err = ipw2100_hw_send_command(priv, &cmd);
2032 if (!err) {
2033 memset(priv->essid + ssid_len, 0,
2034 IW_ESSID_MAX_SIZE - ssid_len);
2035 memcpy(priv->essid, essid, ssid_len);
2036 priv->essid_len = ssid_len;
2037 }
2038
2039 if (!batch_mode) {
2040 if (ipw2100_enable_adapter(priv))
2041 err = -EIO;
2042 }
2043
2044 return err;
2045}
2046
2047static void isr_indicate_association_lost(struct ipw2100_priv *priv, u32 status)
2048{
2049 IPW_DEBUG(IPW_DL_NOTIF | IPW_DL_STATE | IPW_DL_ASSOC,
2050 "disassociated: '%s' " MAC_FMT " \n",
2051 escape_essid(priv->essid, priv->essid_len),
2052 MAC_ARG(priv->bssid));
2053
2054 priv->status &= ~(STATUS_ASSOCIATED | STATUS_ASSOCIATING);
2055
2056 if (priv->status & STATUS_STOPPING) {
2057 IPW_DEBUG_INFO("Card is stopping itself, discard ASSN_LOST.\n");
2058 return;
2059 }
2060
2061 memset(priv->bssid, 0, ETH_ALEN);
2062 memset(priv->ieee->bssid, 0, ETH_ALEN);
2063
2064 netif_carrier_off(priv->net_dev);
2065 netif_stop_queue(priv->net_dev);
2066
2067 if (!(priv->status & STATUS_RUNNING))
2068 return;
2069
2070 if (priv->status & STATUS_SECURITY_UPDATED)
2071 queue_work(priv->workqueue, &priv->security_work);
2072
2073 queue_work(priv->workqueue, &priv->wx_event_work);
2074}
2075
2076static void isr_indicate_rf_kill(struct ipw2100_priv *priv, u32 status)
2077{
2078 IPW_DEBUG_INFO("%s: RF Kill state changed to radio OFF.\n",
2079 priv->net_dev->name);
2080
2081 /* RF_KILL is now enabled (else we wouldn't be here) */
2082 priv->status |= STATUS_RF_KILL_HW;
2083
2084#ifdef ACPI_CSTATE_LIMIT_DEFINED
2085 if (priv->config & CFG_C3_DISABLED) {
2086 IPW_DEBUG_INFO(DRV_NAME ": Resetting C3 transitions.\n");
2087 acpi_set_cstate_limit(priv->cstate_limit);
2088 priv->config &= ~CFG_C3_DISABLED;
2089 }
2090#endif
2091
2092 /* Make sure the RF Kill check timer is running */
2093 priv->stop_rf_kill = 0;
2094 cancel_delayed_work(&priv->rf_kill);
2095 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
2096}
2097
2098static void isr_scan_complete(struct ipw2100_priv *priv, u32 status)
2099{
2100 IPW_DEBUG_SCAN("scan complete\n");
2101 /* Age the scan results... */
2102 priv->ieee->scans++;
2103 priv->status &= ~STATUS_SCANNING;
2104}
2105
2106#ifdef CONFIG_IPW_DEBUG
2107#define IPW2100_HANDLER(v, f) { v, f, # v }
2108struct ipw2100_status_indicator {
2109 int status;
2110 void (*cb)(struct ipw2100_priv *priv, u32 status);
2111 char *name;
2112};
2113#else
2114#define IPW2100_HANDLER(v, f) { v, f }
2115struct ipw2100_status_indicator {
2116 int status;
2117 void (*cb)(struct ipw2100_priv *priv, u32 status);
2118};
2119#endif /* CONFIG_IPW_DEBUG */
2120
2121static void isr_indicate_scanning(struct ipw2100_priv *priv, u32 status)
2122{
2123 IPW_DEBUG_SCAN("Scanning...\n");
2124 priv->status |= STATUS_SCANNING;
2125}
2126
2127static const struct ipw2100_status_indicator status_handlers[] = {
2128 IPW2100_HANDLER(IPW_STATE_INITIALIZED, 0),
2129 IPW2100_HANDLER(IPW_STATE_COUNTRY_FOUND, 0),
2130 IPW2100_HANDLER(IPW_STATE_ASSOCIATED, isr_indicate_associated),
2131 IPW2100_HANDLER(IPW_STATE_ASSN_LOST, isr_indicate_association_lost),
2132 IPW2100_HANDLER(IPW_STATE_ASSN_CHANGED, 0),
2133 IPW2100_HANDLER(IPW_STATE_SCAN_COMPLETE, isr_scan_complete),
2134 IPW2100_HANDLER(IPW_STATE_ENTERED_PSP, 0),
2135 IPW2100_HANDLER(IPW_STATE_LEFT_PSP, 0),
2136 IPW2100_HANDLER(IPW_STATE_RF_KILL, isr_indicate_rf_kill),
2137 IPW2100_HANDLER(IPW_STATE_DISABLED, 0),
2138 IPW2100_HANDLER(IPW_STATE_POWER_DOWN, 0),
2139 IPW2100_HANDLER(IPW_STATE_SCANNING, isr_indicate_scanning),
2140 IPW2100_HANDLER(-1, 0)
2141};
2142
2143
2144static void isr_status_change(struct ipw2100_priv *priv, int status)
2145{
2146 int i;
2147
2148 if (status == IPW_STATE_SCANNING &&
2149 priv->status & STATUS_ASSOCIATED &&
2150 !(priv->status & STATUS_SCANNING)) {
2151 IPW_DEBUG_INFO("Scan detected while associated, with "
2152 "no scan request. Restarting firmware.\n");
2153
2154 /* Wake up any sleeping jobs */
2155 schedule_reset(priv);
2156 }
2157
2158 for (i = 0; status_handlers[i].status != -1; i++) {
2159 if (status == status_handlers[i].status) {
2160 IPW_DEBUG_NOTIF("Status change: %s\n",
2161 status_handlers[i].name);
2162 if (status_handlers[i].cb)
2163 status_handlers[i].cb(priv, status);
2164 priv->wstats.status = status;
2165 return;
2166 }
2167 }
2168
2169 IPW_DEBUG_NOTIF("unknown status received: %04x\n", status);
2170}
2171
2172static void isr_rx_complete_command(
2173 struct ipw2100_priv *priv,
2174 struct ipw2100_cmd_header *cmd)
2175{
2176#ifdef CONFIG_IPW_DEBUG
2177 if (cmd->host_command_reg < ARRAY_SIZE(command_types)) {
2178 IPW_DEBUG_HC("Command completed '%s (%d)'\n",
2179 command_types[cmd->host_command_reg],
2180 cmd->host_command_reg);
2181 }
2182#endif
2183 if (cmd->host_command_reg == HOST_COMPLETE)
2184 priv->status |= STATUS_ENABLED;
2185
2186 if (cmd->host_command_reg == CARD_DISABLE)
2187 priv->status &= ~STATUS_ENABLED;
2188
2189 priv->status &= ~STATUS_CMD_ACTIVE;
2190
2191 wake_up_interruptible(&priv->wait_command_queue);
2192}
2193
2194#ifdef CONFIG_IPW_DEBUG
2195static const char *frame_types[] = {
2196 "COMMAND_STATUS_VAL",
2197 "STATUS_CHANGE_VAL",
2198 "P80211_DATA_VAL",
2199 "P8023_DATA_VAL",
2200 "HOST_NOTIFICATION_VAL"
2201};
2202#endif
2203
2204
2205static inline int ipw2100_alloc_skb(
2206 struct ipw2100_priv *priv,
2207 struct ipw2100_rx_packet *packet)
2208{
2209 packet->skb = dev_alloc_skb(sizeof(struct ipw2100_rx));
2210 if (!packet->skb)
2211 return -ENOMEM;
2212
2213 packet->rxp = (struct ipw2100_rx *)packet->skb->data;
2214 packet->dma_addr = pci_map_single(priv->pci_dev, packet->skb->data,
2215 sizeof(struct ipw2100_rx),
2216 PCI_DMA_FROMDEVICE);
2217 /* NOTE: pci_map_single does not return an error code, and 0 is a valid
2218 * dma_addr */
2219
2220 return 0;
2221}
2222
2223
2224#define SEARCH_ERROR 0xffffffff
2225#define SEARCH_FAIL 0xfffffffe
2226#define SEARCH_SUCCESS 0xfffffff0
2227#define SEARCH_DISCARD 0
2228#define SEARCH_SNAPSHOT 1
2229
2230#define SNAPSHOT_ADDR(ofs) (priv->snapshot[((ofs) >> 12) & 0xff] + ((ofs) & 0xfff))
2231static inline int ipw2100_snapshot_alloc(struct ipw2100_priv *priv)
2232{
2233 int i;
2234 if (priv->snapshot[0])
2235 return 1;
2236 for (i = 0; i < 0x30; i++) {
2237 priv->snapshot[i] = (u8*)kmalloc(0x1000, GFP_ATOMIC);
2238 if (!priv->snapshot[i]) {
2239 IPW_DEBUG_INFO("%s: Error allocating snapshot "
2240 "buffer %d\n", priv->net_dev->name, i);
2241 while (i > 0)
2242 kfree(priv->snapshot[--i]);
2243 priv->snapshot[0] = NULL;
2244 return 0;
2245 }
2246 }
2247
2248 return 1;
2249}
2250
2251static inline void ipw2100_snapshot_free(struct ipw2100_priv *priv)
2252{
2253 int i;
2254 if (!priv->snapshot[0])
2255 return;
2256 for (i = 0; i < 0x30; i++)
2257 kfree(priv->snapshot[i]);
2258 priv->snapshot[0] = NULL;
2259}
2260
2261static inline u32 ipw2100_match_buf(struct ipw2100_priv *priv, u8 *in_buf,
2262 size_t len, int mode)
2263{
2264 u32 i, j;
2265 u32 tmp;
2266 u8 *s, *d;
2267 u32 ret;
2268
2269 s = in_buf;
2270 if (mode == SEARCH_SNAPSHOT) {
2271 if (!ipw2100_snapshot_alloc(priv))
2272 mode = SEARCH_DISCARD;
2273 }
2274
2275 for (ret = SEARCH_FAIL, i = 0; i < 0x30000; i += 4) {
2276 read_nic_dword(priv->net_dev, i, &tmp);
2277 if (mode == SEARCH_SNAPSHOT)
2278 *(u32 *)SNAPSHOT_ADDR(i) = tmp;
2279 if (ret == SEARCH_FAIL) {
2280 d = (u8*)&tmp;
2281 for (j = 0; j < 4; j++) {
2282 if (*s != *d) {
2283 s = in_buf;
2284 continue;
2285 }
2286
2287 s++;
2288 d++;
2289
2290 if ((s - in_buf) == len)
2291 ret = (i + j) - len + 1;
2292 }
2293 } else if (mode == SEARCH_DISCARD)
2294 return ret;
2295 }
2296
2297 return ret;
2298}
2299
2300/*
2301 *
2302 * 0) Disconnect the SKB from the firmware (just unmap)
2303 * 1) Pack the ETH header into the SKB
2304 * 2) Pass the SKB to the network stack
2305 *
2306 * When packet is provided by the firmware, it contains the following:
2307 *
2308 * . ieee80211_hdr
2309 * . ieee80211_snap_hdr
2310 *
2311 * The size of the constructed ethernet
2312 *
2313 */
2314#ifdef CONFIG_IPW2100_RX_DEBUG
2315static u8 packet_data[IPW_RX_NIC_BUFFER_LENGTH];
2316#endif
2317
2318static inline void ipw2100_corruption_detected(struct ipw2100_priv *priv,
2319 int i)
2320{
2321#ifdef CONFIG_IPW_DEBUG_C3
2322 struct ipw2100_status *status = &priv->status_queue.drv[i];
2323 u32 match, reg;
2324 int j;
2325#endif
2326#ifdef ACPI_CSTATE_LIMIT_DEFINED
2327 int limit;
2328#endif
2329
2330 IPW_DEBUG_INFO(DRV_NAME ": PCI latency error detected at "
2331 "0x%04zX.\n", i * sizeof(struct ipw2100_status));
2332
2333#ifdef ACPI_CSTATE_LIMIT_DEFINED
2334 IPW_DEBUG_INFO(DRV_NAME ": Disabling C3 transitions.\n");
2335 limit = acpi_get_cstate_limit();
2336 if (limit > 2) {
2337 priv->cstate_limit = limit;
2338 acpi_set_cstate_limit(2);
2339 priv->config |= CFG_C3_DISABLED;
2340 }
2341#endif
2342
2343#ifdef CONFIG_IPW_DEBUG_C3
2344 /* Halt the fimrware so we can get a good image */
2345 write_register(priv->net_dev, IPW_REG_RESET_REG,
2346 IPW_AUX_HOST_RESET_REG_STOP_MASTER);
2347 j = 5;
2348 do {
2349 udelay(IPW_WAIT_RESET_MASTER_ASSERT_COMPLETE_DELAY);
2350 read_register(priv->net_dev, IPW_REG_RESET_REG, &reg);
2351
2352 if (reg & IPW_AUX_HOST_RESET_REG_MASTER_DISABLED)
2353 break;
2354 } while (j--);
2355
2356 match = ipw2100_match_buf(priv, (u8*)status,
2357 sizeof(struct ipw2100_status),
2358 SEARCH_SNAPSHOT);
2359 if (match < SEARCH_SUCCESS)
2360 IPW_DEBUG_INFO("%s: DMA status match in Firmware at "
2361 "offset 0x%06X, length %d:\n",
2362 priv->net_dev->name, match,
2363 sizeof(struct ipw2100_status));
2364 else
2365 IPW_DEBUG_INFO("%s: No DMA status match in "
2366 "Firmware.\n", priv->net_dev->name);
2367
2368 printk_buf((u8*)priv->status_queue.drv,
2369 sizeof(struct ipw2100_status) * RX_QUEUE_LENGTH);
2370#endif
2371
2372 priv->fatal_error = IPW2100_ERR_C3_CORRUPTION;
2373 priv->ieee->stats.rx_errors++;
2374 schedule_reset(priv);
2375}
2376
2377static inline void isr_rx(struct ipw2100_priv *priv, int i,
2378 struct ieee80211_rx_stats *stats)
2379{
2380 struct ipw2100_status *status = &priv->status_queue.drv[i];
2381 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
2382
2383 IPW_DEBUG_RX("Handler...\n");
2384
2385 if (unlikely(status->frame_size > skb_tailroom(packet->skb))) {
2386 IPW_DEBUG_INFO("%s: frame_size (%u) > skb_tailroom (%u)!"
2387 " Dropping.\n",
2388 priv->net_dev->name,
2389 status->frame_size, skb_tailroom(packet->skb));
2390 priv->ieee->stats.rx_errors++;
2391 return;
2392 }
2393
2394 if (unlikely(!netif_running(priv->net_dev))) {
2395 priv->ieee->stats.rx_errors++;
2396 priv->wstats.discard.misc++;
2397 IPW_DEBUG_DROP("Dropping packet while interface is not up.\n");
2398 return;
2399 }
2400
2401 if (unlikely(priv->ieee->iw_mode == IW_MODE_MONITOR &&
2402 status->flags & IPW_STATUS_FLAG_CRC_ERROR)) {
2403 IPW_DEBUG_RX("CRC error in packet. Dropping.\n");
2404 priv->ieee->stats.rx_errors++;
2405 return;
2406 }
2407
2408 if (unlikely(priv->ieee->iw_mode != IW_MODE_MONITOR &&
2409 !(priv->status & STATUS_ASSOCIATED))) {
2410 IPW_DEBUG_DROP("Dropping packet while not associated.\n");
2411 priv->wstats.discard.misc++;
2412 return;
2413 }
2414
2415
2416 pci_unmap_single(priv->pci_dev,
2417 packet->dma_addr,
2418 sizeof(struct ipw2100_rx),
2419 PCI_DMA_FROMDEVICE);
2420
2421 skb_put(packet->skb, status->frame_size);
2422
2423#ifdef CONFIG_IPW2100_RX_DEBUG
2424 /* Make a copy of the frame so we can dump it to the logs if
2425 * ieee80211_rx fails */
2426 memcpy(packet_data, packet->skb->data,
2427 min_t(u32, status->frame_size, IPW_RX_NIC_BUFFER_LENGTH));
2428#endif
2429
2430 if (!ieee80211_rx(priv->ieee, packet->skb, stats)) {
2431#ifdef CONFIG_IPW2100_RX_DEBUG
2432 IPW_DEBUG_DROP("%s: Non consumed packet:\n",
2433 priv->net_dev->name);
2434 printk_buf(IPW_DL_DROP, packet_data, status->frame_size);
2435#endif
2436 priv->ieee->stats.rx_errors++;
2437
2438 /* ieee80211_rx failed, so it didn't free the SKB */
2439 dev_kfree_skb_any(packet->skb);
2440 packet->skb = NULL;
2441 }
2442
2443 /* We need to allocate a new SKB and attach it to the RDB. */
2444 if (unlikely(ipw2100_alloc_skb(priv, packet))) {
2445 printk(KERN_WARNING DRV_NAME ": "
2446 "%s: Unable to allocate SKB onto RBD ring - disabling "
2447 "adapter.\n", priv->net_dev->name);
2448 /* TODO: schedule adapter shutdown */
2449 IPW_DEBUG_INFO("TODO: Shutdown adapter...\n");
2450 }
2451
2452 /* Update the RDB entry */
2453 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
2454}
2455
2456static inline int ipw2100_corruption_check(struct ipw2100_priv *priv, int i)
2457{
2458 struct ipw2100_status *status = &priv->status_queue.drv[i];
2459 struct ipw2100_rx *u = priv->rx_buffers[i].rxp;
2460 u16 frame_type = status->status_fields & STATUS_TYPE_MASK;
2461
2462 switch (frame_type) {
2463 case COMMAND_STATUS_VAL:
2464 return (status->frame_size != sizeof(u->rx_data.command));
2465 case STATUS_CHANGE_VAL:
2466 return (status->frame_size != sizeof(u->rx_data.status));
2467 case HOST_NOTIFICATION_VAL:
2468 return (status->frame_size < sizeof(u->rx_data.notification));
2469 case P80211_DATA_VAL:
2470 case P8023_DATA_VAL:
2471#ifdef CONFIG_IPW2100_MONITOR
2472 return 0;
2473#else
2474 switch (WLAN_FC_GET_TYPE(u->rx_data.header.frame_ctl)) {
2475 case IEEE80211_FTYPE_MGMT:
2476 case IEEE80211_FTYPE_CTL:
2477 return 0;
2478 case IEEE80211_FTYPE_DATA:
2479 return (status->frame_size >
2480 IPW_MAX_802_11_PAYLOAD_LENGTH);
2481 }
2482#endif
2483 }
2484
2485 return 1;
2486}
2487
2488/*
2489 * ipw2100 interrupts are disabled at this point, and the ISR
2490 * is the only code that calls this method. So, we do not need
2491 * to play with any locks.
2492 *
2493 * RX Queue works as follows:
2494 *
2495 * Read index - firmware places packet in entry identified by the
2496 * Read index and advances Read index. In this manner,
2497 * Read index will always point to the next packet to
2498 * be filled--but not yet valid.
2499 *
2500 * Write index - driver fills this entry with an unused RBD entry.
2501 * This entry has not filled by the firmware yet.
2502 *
2503 * In between the W and R indexes are the RBDs that have been received
2504 * but not yet processed.
2505 *
2506 * The process of handling packets will start at WRITE + 1 and advance
2507 * until it reaches the READ index.
2508 *
2509 * The WRITE index is cached in the variable 'priv->rx_queue.next'.
2510 *
2511 */
2512static inline void __ipw2100_rx_process(struct ipw2100_priv *priv)
2513{
2514 struct ipw2100_bd_queue *rxq = &priv->rx_queue;
2515 struct ipw2100_status_queue *sq = &priv->status_queue;
2516 struct ipw2100_rx_packet *packet;
2517 u16 frame_type;
2518 u32 r, w, i, s;
2519 struct ipw2100_rx *u;
2520 struct ieee80211_rx_stats stats = {
2521 .mac_time = jiffies,
2522 };
2523
2524 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_READ_INDEX, &r);
2525 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_WRITE_INDEX, &w);
2526
2527 if (r >= rxq->entries) {
2528 IPW_DEBUG_RX("exit - bad read index\n");
2529 return;
2530 }
2531
2532 i = (rxq->next + 1) % rxq->entries;
2533 s = i;
2534 while (i != r) {
2535 /* IPW_DEBUG_RX("r = %d : w = %d : processing = %d\n",
2536 r, rxq->next, i); */
2537
2538 packet = &priv->rx_buffers[i];
2539
2540 /* Sync the DMA for the STATUS buffer so CPU is sure to get
2541 * the correct values */
2542 pci_dma_sync_single_for_cpu(
2543 priv->pci_dev,
2544 sq->nic + sizeof(struct ipw2100_status) * i,
2545 sizeof(struct ipw2100_status),
2546 PCI_DMA_FROMDEVICE);
2547
2548 /* Sync the DMA for the RX buffer so CPU is sure to get
2549 * the correct values */
2550 pci_dma_sync_single_for_cpu(priv->pci_dev, packet->dma_addr,
2551 sizeof(struct ipw2100_rx),
2552 PCI_DMA_FROMDEVICE);
2553
2554 if (unlikely(ipw2100_corruption_check(priv, i))) {
2555 ipw2100_corruption_detected(priv, i);
2556 goto increment;
2557 }
2558
2559 u = packet->rxp;
2560 frame_type = sq->drv[i].status_fields &
2561 STATUS_TYPE_MASK;
2562 stats.rssi = sq->drv[i].rssi + IPW2100_RSSI_TO_DBM;
2563 stats.len = sq->drv[i].frame_size;
2564
2565 stats.mask = 0;
2566 if (stats.rssi != 0)
2567 stats.mask |= IEEE80211_STATMASK_RSSI;
2568 stats.freq = IEEE80211_24GHZ_BAND;
2569
2570 IPW_DEBUG_RX(
2571 "%s: '%s' frame type received (%d).\n",
2572 priv->net_dev->name, frame_types[frame_type],
2573 stats.len);
2574
2575 switch (frame_type) {
2576 case COMMAND_STATUS_VAL:
2577 /* Reset Rx watchdog */
2578 isr_rx_complete_command(
2579 priv, &u->rx_data.command);
2580 break;
2581
2582 case STATUS_CHANGE_VAL:
2583 isr_status_change(priv, u->rx_data.status);
2584 break;
2585
2586 case P80211_DATA_VAL:
2587 case P8023_DATA_VAL:
2588#ifdef CONFIG_IPW2100_MONITOR
2589 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
2590 isr_rx(priv, i, &stats);
2591 break;
2592 }
2593#endif
2594 if (stats.len < sizeof(u->rx_data.header))
2595 break;
2596 switch (WLAN_FC_GET_TYPE(u->rx_data.header.
2597 frame_ctl)) {
2598 case IEEE80211_FTYPE_MGMT:
2599 ieee80211_rx_mgt(priv->ieee,
2600 &u->rx_data.header,
2601 &stats);
2602 break;
2603
2604 case IEEE80211_FTYPE_CTL:
2605 break;
2606
2607 case IEEE80211_FTYPE_DATA:
2608 isr_rx(priv, i, &stats);
2609 break;
2610
2611 }
2612 break;
2613 }
2614
2615 increment:
2616 /* clear status field associated with this RBD */
2617 rxq->drv[i].status.info.field = 0;
2618
2619 i = (i + 1) % rxq->entries;
2620 }
2621
2622 if (i != s) {
2623 /* backtrack one entry, wrapping to end if at 0 */
2624 rxq->next = (i ? i : rxq->entries) - 1;
2625
2626 write_register(priv->net_dev,
2627 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX,
2628 rxq->next);
2629 }
2630}
2631
2632
2633/*
2634 * __ipw2100_tx_process
2635 *
2636 * This routine will determine whether the next packet on
2637 * the fw_pend_list has been processed by the firmware yet.
2638 *
2639 * If not, then it does nothing and returns.
2640 *
2641 * If so, then it removes the item from the fw_pend_list, frees
2642 * any associated storage, and places the item back on the
2643 * free list of its source (either msg_free_list or tx_free_list)
2644 *
2645 * TX Queue works as follows:
2646 *
2647 * Read index - points to the next TBD that the firmware will
2648 * process. The firmware will read the data, and once
2649 * done processing, it will advance the Read index.
2650 *
2651 * Write index - driver fills this entry with an constructed TBD
2652 * entry. The Write index is not advanced until the
2653 * packet has been configured.
2654 *
2655 * In between the W and R indexes are the TBDs that have NOT been
2656 * processed. Lagging behind the R index are packets that have
2657 * been processed but have not been freed by the driver.
2658 *
2659 * In order to free old storage, an internal index will be maintained
2660 * that points to the next packet to be freed. When all used
2661 * packets have been freed, the oldest index will be the same as the
2662 * firmware's read index.
2663 *
2664 * The OLDEST index is cached in the variable 'priv->tx_queue.oldest'
2665 *
2666 * Because the TBD structure can not contain arbitrary data, the
2667 * driver must keep an internal queue of cached allocations such that
2668 * it can put that data back into the tx_free_list and msg_free_list
2669 * for use by future command and data packets.
2670 *
2671 */
2672static inline int __ipw2100_tx_process(struct ipw2100_priv *priv)
2673{
2674 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2675 struct ipw2100_bd *tbd;
2676 struct list_head *element;
2677 struct ipw2100_tx_packet *packet;
2678 int descriptors_used;
2679 int e, i;
2680 u32 r, w, frag_num = 0;
2681
2682 if (list_empty(&priv->fw_pend_list))
2683 return 0;
2684
2685 element = priv->fw_pend_list.next;
2686
2687 packet = list_entry(element, struct ipw2100_tx_packet, list);
2688 tbd = &txq->drv[packet->index];
2689
2690 /* Determine how many TBD entries must be finished... */
2691 switch (packet->type) {
2692 case COMMAND:
2693 /* COMMAND uses only one slot; don't advance */
2694 descriptors_used = 1;
2695 e = txq->oldest;
2696 break;
2697
2698 case DATA:
2699 /* DATA uses two slots; advance and loop position. */
2700 descriptors_used = tbd->num_fragments;
2701 frag_num = tbd->num_fragments - 1;
2702 e = txq->oldest + frag_num;
2703 e %= txq->entries;
2704 break;
2705
2706 default:
2707 printk(KERN_WARNING DRV_NAME ": %s: Bad fw_pend_list entry!\n",
2708 priv->net_dev->name);
2709 return 0;
2710 }
2711
2712 /* if the last TBD is not done by NIC yet, then packet is
2713 * not ready to be released.
2714 *
2715 */
2716 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
2717 &r);
2718 read_register(priv->net_dev, IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2719 &w);
2720 if (w != txq->next)
2721 printk(KERN_WARNING DRV_NAME ": %s: write index mismatch\n",
2722 priv->net_dev->name);
2723
2724 /*
2725 * txq->next is the index of the last packet written txq->oldest is
2726 * the index of the r is the index of the next packet to be read by
2727 * firmware
2728 */
2729
2730
2731 /*
2732 * Quick graphic to help you visualize the following
2733 * if / else statement
2734 *
2735 * ===>| s---->|===============
2736 * e>|
2737 * | a | b | c | d | e | f | g | h | i | j | k | l
2738 * r---->|
2739 * w
2740 *
2741 * w - updated by driver
2742 * r - updated by firmware
2743 * s - start of oldest BD entry (txq->oldest)
2744 * e - end of oldest BD entry
2745 *
2746 */
2747 if (!((r <= w && (e < r || e >= w)) || (e < r && e >= w))) {
2748 IPW_DEBUG_TX("exit - no processed packets ready to release.\n");
2749 return 0;
2750 }
2751
2752 list_del(element);
2753 DEC_STAT(&priv->fw_pend_stat);
2754
2755#ifdef CONFIG_IPW_DEBUG
2756 {
2757 int i = txq->oldest;
2758 IPW_DEBUG_TX(
2759 "TX%d V=%p P=%04X T=%04X L=%d\n", i,
2760 &txq->drv[i],
2761 (u32)(txq->nic + i * sizeof(struct ipw2100_bd)),
2762 txq->drv[i].host_addr,
2763 txq->drv[i].buf_length);
2764
2765 if (packet->type == DATA) {
2766 i = (i + 1) % txq->entries;
2767
2768 IPW_DEBUG_TX(
2769 "TX%d V=%p P=%04X T=%04X L=%d\n", i,
2770 &txq->drv[i],
2771 (u32)(txq->nic + i *
2772 sizeof(struct ipw2100_bd)),
2773 (u32)txq->drv[i].host_addr,
2774 txq->drv[i].buf_length);
2775 }
2776 }
2777#endif
2778
2779 switch (packet->type) {
2780 case DATA:
2781 if (txq->drv[txq->oldest].status.info.fields.txType != 0)
2782 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2783 "Expecting DATA TBD but pulled "
2784 "something else: ids %d=%d.\n",
2785 priv->net_dev->name, txq->oldest, packet->index);
2786
2787 /* DATA packet; we have to unmap and free the SKB */
2788 priv->ieee->stats.tx_packets++;
2789 for (i = 0; i < frag_num; i++) {
2790 tbd = &txq->drv[(packet->index + 1 + i) %
2791 txq->entries];
2792
2793 IPW_DEBUG_TX(
2794 "TX%d P=%08x L=%d\n",
2795 (packet->index + 1 + i) % txq->entries,
2796 tbd->host_addr, tbd->buf_length);
2797
2798 pci_unmap_single(priv->pci_dev,
2799 tbd->host_addr,
2800 tbd->buf_length,
2801 PCI_DMA_TODEVICE);
2802 }
2803
2804 priv->ieee->stats.tx_bytes += packet->info.d_struct.txb->payload_size;
2805 ieee80211_txb_free(packet->info.d_struct.txb);
2806 packet->info.d_struct.txb = NULL;
2807
2808 list_add_tail(element, &priv->tx_free_list);
2809 INC_STAT(&priv->tx_free_stat);
2810
2811 /* We have a free slot in the Tx queue, so wake up the
2812 * transmit layer if it is stopped. */
2813 if (priv->status & STATUS_ASSOCIATED &&
2814 netif_queue_stopped(priv->net_dev)) {
2815 IPW_DEBUG_INFO(KERN_INFO
2816 "%s: Waking net queue.\n",
2817 priv->net_dev->name);
2818 netif_wake_queue(priv->net_dev);
2819 }
2820
2821 /* A packet was processed by the hardware, so update the
2822 * watchdog */
2823 priv->net_dev->trans_start = jiffies;
2824
2825 break;
2826
2827 case COMMAND:
2828 if (txq->drv[txq->oldest].status.info.fields.txType != 1)
2829 printk(KERN_WARNING DRV_NAME ": %s: Queue mismatch. "
2830 "Expecting COMMAND TBD but pulled "
2831 "something else: ids %d=%d.\n",
2832 priv->net_dev->name, txq->oldest, packet->index);
2833
2834#ifdef CONFIG_IPW_DEBUG
2835 if (packet->info.c_struct.cmd->host_command_reg <
2836 sizeof(command_types) / sizeof(*command_types))
2837 IPW_DEBUG_TX(
2838 "Command '%s (%d)' processed: %d.\n",
2839 command_types[packet->info.c_struct.cmd->host_command_reg],
2840 packet->info.c_struct.cmd->host_command_reg,
2841 packet->info.c_struct.cmd->cmd_status_reg);
2842#endif
2843
2844 list_add_tail(element, &priv->msg_free_list);
2845 INC_STAT(&priv->msg_free_stat);
2846 break;
2847 }
2848
2849 /* advance oldest used TBD pointer to start of next entry */
2850 txq->oldest = (e + 1) % txq->entries;
2851 /* increase available TBDs number */
2852 txq->available += descriptors_used;
2853 SET_STAT(&priv->txq_stat, txq->available);
2854
2855 IPW_DEBUG_TX("packet latency (send to process) %ld jiffies\n",
2856 jiffies - packet->jiffy_start);
2857
2858 return (!list_empty(&priv->fw_pend_list));
2859}
2860
2861
2862static inline void __ipw2100_tx_complete(struct ipw2100_priv *priv)
2863{
2864 int i = 0;
2865
2866 while (__ipw2100_tx_process(priv) && i < 200) i++;
2867
2868 if (i == 200) {
2869 printk(KERN_WARNING DRV_NAME ": "
2870 "%s: Driver is running slow (%d iters).\n",
2871 priv->net_dev->name, i);
2872 }
2873}
2874
2875
2876static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
2877{
2878 struct list_head *element;
2879 struct ipw2100_tx_packet *packet;
2880 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2881 struct ipw2100_bd *tbd;
2882 int next = txq->next;
2883
2884 while (!list_empty(&priv->msg_pend_list)) {
2885 /* if there isn't enough space in TBD queue, then
2886 * don't stuff a new one in.
2887 * NOTE: 3 are needed as a command will take one,
2888 * and there is a minimum of 2 that must be
2889 * maintained between the r and w indexes
2890 */
2891 if (txq->available <= 3) {
2892 IPW_DEBUG_TX("no room in tx_queue\n");
2893 break;
2894 }
2895
2896 element = priv->msg_pend_list.next;
2897 list_del(element);
2898 DEC_STAT(&priv->msg_pend_stat);
2899
2900 packet = list_entry(element,
2901 struct ipw2100_tx_packet, list);
2902
2903 IPW_DEBUG_TX("using TBD at virt=%p, phys=%p\n",
2904 &txq->drv[txq->next],
2905 (void*)(txq->nic + txq->next *
2906 sizeof(struct ipw2100_bd)));
2907
2908 packet->index = txq->next;
2909
2910 tbd = &txq->drv[txq->next];
2911
2912 /* initialize TBD */
2913 tbd->host_addr = packet->info.c_struct.cmd_phys;
2914 tbd->buf_length = sizeof(struct ipw2100_cmd_header);
2915 /* not marking number of fragments causes problems
2916 * with f/w debug version */
2917 tbd->num_fragments = 1;
2918 tbd->status.info.field =
2919 IPW_BD_STATUS_TX_FRAME_COMMAND |
2920 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
2921
2922 /* update TBD queue counters */
2923 txq->next++;
2924 txq->next %= txq->entries;
2925 txq->available--;
2926 DEC_STAT(&priv->txq_stat);
2927
2928 list_add_tail(element, &priv->fw_pend_list);
2929 INC_STAT(&priv->fw_pend_stat);
2930 }
2931
2932 if (txq->next != next) {
2933 /* kick off the DMA by notifying firmware the
2934 * write index has moved; make sure TBD stores are sync'd */
2935 wmb();
2936 write_register(priv->net_dev,
2937 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
2938 txq->next);
2939 }
2940}
2941
2942
2943/*
2944 * ipw2100_tx_send_data
2945 *
2946 */
2947static void ipw2100_tx_send_data(struct ipw2100_priv *priv)
2948{
2949 struct list_head *element;
2950 struct ipw2100_tx_packet *packet;
2951 struct ipw2100_bd_queue *txq = &priv->tx_queue;
2952 struct ipw2100_bd *tbd;
2953 int next = txq->next;
2954 int i = 0;
2955 struct ipw2100_data_header *ipw_hdr;
2956 struct ieee80211_hdr *hdr;
2957
2958 while (!list_empty(&priv->tx_pend_list)) {
2959 /* if there isn't enough space in TBD queue, then
2960 * don't stuff a new one in.
2961 * NOTE: 4 are needed as a data will take two,
2962 * and there is a minimum of 2 that must be
2963 * maintained between the r and w indexes
2964 */
2965 element = priv->tx_pend_list.next;
2966 packet = list_entry(element, struct ipw2100_tx_packet, list);
2967
2968 if (unlikely(1 + packet->info.d_struct.txb->nr_frags >
2969 IPW_MAX_BDS)) {
2970 /* TODO: Support merging buffers if more than
2971 * IPW_MAX_BDS are used */
2972 IPW_DEBUG_INFO(
2973 "%s: Maximum BD theshold exceeded. "
2974 "Increase fragmentation level.\n",
2975 priv->net_dev->name);
2976 }
2977
2978 if (txq->available <= 3 +
2979 packet->info.d_struct.txb->nr_frags) {
2980 IPW_DEBUG_TX("no room in tx_queue\n");
2981 break;
2982 }
2983
2984 list_del(element);
2985 DEC_STAT(&priv->tx_pend_stat);
2986
2987 tbd = &txq->drv[txq->next];
2988
2989 packet->index = txq->next;
2990
2991 ipw_hdr = packet->info.d_struct.data;
2992 hdr = (struct ieee80211_hdr *)packet->info.d_struct.txb->
2993 fragments[0]->data;
2994
2995 if (priv->ieee->iw_mode == IW_MODE_INFRA) {
2996 /* To DS: Addr1 = BSSID, Addr2 = SA,
2997 Addr3 = DA */
2998 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
2999 memcpy(ipw_hdr->dst_addr, hdr->addr3, ETH_ALEN);
3000 } else if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
3001 /* not From/To DS: Addr1 = DA, Addr2 = SA,
3002 Addr3 = BSSID */
3003 memcpy(ipw_hdr->src_addr, hdr->addr2, ETH_ALEN);
3004 memcpy(ipw_hdr->dst_addr, hdr->addr1, ETH_ALEN);
3005 }
3006
3007 ipw_hdr->host_command_reg = SEND;
3008 ipw_hdr->host_command_reg1 = 0;
3009
3010 /* For now we only support host based encryption */
3011 ipw_hdr->needs_encryption = 0;
3012 ipw_hdr->encrypted = packet->info.d_struct.txb->encrypted;
3013 if (packet->info.d_struct.txb->nr_frags > 1)
3014 ipw_hdr->fragment_size =
3015 packet->info.d_struct.txb->frag_size - IEEE80211_3ADDR_LEN;
3016 else
3017 ipw_hdr->fragment_size = 0;
3018
3019 tbd->host_addr = packet->info.d_struct.data_phys;
3020 tbd->buf_length = sizeof(struct ipw2100_data_header);
3021 tbd->num_fragments = 1 + packet->info.d_struct.txb->nr_frags;
3022 tbd->status.info.field =
3023 IPW_BD_STATUS_TX_FRAME_802_3 |
3024 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3025 txq->next++;
3026 txq->next %= txq->entries;
3027
3028 IPW_DEBUG_TX(
3029 "data header tbd TX%d P=%08x L=%d\n",
3030 packet->index, tbd->host_addr,
3031 tbd->buf_length);
3032#ifdef CONFIG_IPW_DEBUG
3033 if (packet->info.d_struct.txb->nr_frags > 1)
3034 IPW_DEBUG_FRAG("fragment Tx: %d frames\n",
3035 packet->info.d_struct.txb->nr_frags);
3036#endif
3037
3038 for (i = 0; i < packet->info.d_struct.txb->nr_frags; i++) {
3039 tbd = &txq->drv[txq->next];
3040 if (i == packet->info.d_struct.txb->nr_frags - 1)
3041 tbd->status.info.field =
3042 IPW_BD_STATUS_TX_FRAME_802_3 |
3043 IPW_BD_STATUS_TX_INTERRUPT_ENABLE;
3044 else
3045 tbd->status.info.field =
3046 IPW_BD_STATUS_TX_FRAME_802_3 |
3047 IPW_BD_STATUS_TX_FRAME_NOT_LAST_FRAGMENT;
3048
3049 tbd->buf_length = packet->info.d_struct.txb->
3050 fragments[i]->len - IEEE80211_3ADDR_LEN;
3051
3052 tbd->host_addr = pci_map_single(
3053 priv->pci_dev,
3054 packet->info.d_struct.txb->fragments[i]->data +
3055 IEEE80211_3ADDR_LEN,
3056 tbd->buf_length,
3057 PCI_DMA_TODEVICE);
3058
3059 IPW_DEBUG_TX(
3060 "data frag tbd TX%d P=%08x L=%d\n",
3061 txq->next, tbd->host_addr, tbd->buf_length);
3062
3063 pci_dma_sync_single_for_device(
3064 priv->pci_dev, tbd->host_addr,
3065 tbd->buf_length,
3066 PCI_DMA_TODEVICE);
3067
3068 txq->next++;
3069 txq->next %= txq->entries;
3070 }
3071
3072 txq->available -= 1 + packet->info.d_struct.txb->nr_frags;
3073 SET_STAT(&priv->txq_stat, txq->available);
3074
3075 list_add_tail(element, &priv->fw_pend_list);
3076 INC_STAT(&priv->fw_pend_stat);
3077 }
3078
3079 if (txq->next != next) {
3080 /* kick off the DMA by notifying firmware the
3081 * write index has moved; make sure TBD stores are sync'd */
3082 write_register(priv->net_dev,
3083 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX,
3084 txq->next);
3085 }
3086 return;
3087}
3088
3089static void ipw2100_irq_tasklet(struct ipw2100_priv *priv)
3090{
3091 struct net_device *dev = priv->net_dev;
3092 unsigned long flags;
3093 u32 inta, tmp;
3094
3095 spin_lock_irqsave(&priv->low_lock, flags);
3096 ipw2100_disable_interrupts(priv);
3097
3098 read_register(dev, IPW_REG_INTA, &inta);
3099
3100 IPW_DEBUG_ISR("enter - INTA: 0x%08lX\n",
3101 (unsigned long)inta & IPW_INTERRUPT_MASK);
3102
3103 priv->in_isr++;
3104 priv->interrupts++;
3105
3106 /* We do not loop and keep polling for more interrupts as this
3107 * is frowned upon and doesn't play nicely with other potentially
3108 * chained IRQs */
3109 IPW_DEBUG_ISR("INTA: 0x%08lX\n",
3110 (unsigned long)inta & IPW_INTERRUPT_MASK);
3111
3112 if (inta & IPW2100_INTA_FATAL_ERROR) {
3113 printk(KERN_WARNING DRV_NAME
3114 ": Fatal interrupt. Scheduling firmware restart.\n");
3115 priv->inta_other++;
3116 write_register(
3117 dev, IPW_REG_INTA,
3118 IPW2100_INTA_FATAL_ERROR);
3119
3120 read_nic_dword(dev, IPW_NIC_FATAL_ERROR, &priv->fatal_error);
3121 IPW_DEBUG_INFO("%s: Fatal error value: 0x%08X\n",
3122 priv->net_dev->name, priv->fatal_error);
3123
3124 read_nic_dword(dev, IPW_ERROR_ADDR(priv->fatal_error), &tmp);
3125 IPW_DEBUG_INFO("%s: Fatal error address value: 0x%08X\n",
3126 priv->net_dev->name, tmp);
3127
3128 /* Wake up any sleeping jobs */
3129 schedule_reset(priv);
3130 }
3131
3132 if (inta & IPW2100_INTA_PARITY_ERROR) {
3133 printk(KERN_ERR DRV_NAME ": ***** PARITY ERROR INTERRUPT !!!! \n");
3134 priv->inta_other++;
3135 write_register(
3136 dev, IPW_REG_INTA,
3137 IPW2100_INTA_PARITY_ERROR);
3138 }
3139
3140 if (inta & IPW2100_INTA_RX_TRANSFER) {
3141 IPW_DEBUG_ISR("RX interrupt\n");
3142
3143 priv->rx_interrupts++;
3144
3145 write_register(
3146 dev, IPW_REG_INTA,
3147 IPW2100_INTA_RX_TRANSFER);
3148
3149 __ipw2100_rx_process(priv);
3150 __ipw2100_tx_complete(priv);
3151 }
3152
3153 if (inta & IPW2100_INTA_TX_TRANSFER) {
3154 IPW_DEBUG_ISR("TX interrupt\n");
3155
3156 priv->tx_interrupts++;
3157
3158 write_register(dev, IPW_REG_INTA,
3159 IPW2100_INTA_TX_TRANSFER);
3160
3161 __ipw2100_tx_complete(priv);
3162 ipw2100_tx_send_commands(priv);
3163 ipw2100_tx_send_data(priv);
3164 }
3165
3166 if (inta & IPW2100_INTA_TX_COMPLETE) {
3167 IPW_DEBUG_ISR("TX complete\n");
3168 priv->inta_other++;
3169 write_register(
3170 dev, IPW_REG_INTA,
3171 IPW2100_INTA_TX_COMPLETE);
3172
3173 __ipw2100_tx_complete(priv);
3174 }
3175
3176 if (inta & IPW2100_INTA_EVENT_INTERRUPT) {
3177 /* ipw2100_handle_event(dev); */
3178 priv->inta_other++;
3179 write_register(
3180 dev, IPW_REG_INTA,
3181 IPW2100_INTA_EVENT_INTERRUPT);
3182 }
3183
3184 if (inta & IPW2100_INTA_FW_INIT_DONE) {
3185 IPW_DEBUG_ISR("FW init done interrupt\n");
3186 priv->inta_other++;
3187
3188 read_register(dev, IPW_REG_INTA, &tmp);
3189 if (tmp & (IPW2100_INTA_FATAL_ERROR |
3190 IPW2100_INTA_PARITY_ERROR)) {
3191 write_register(
3192 dev, IPW_REG_INTA,
3193 IPW2100_INTA_FATAL_ERROR |
3194 IPW2100_INTA_PARITY_ERROR);
3195 }
3196
3197 write_register(dev, IPW_REG_INTA,
3198 IPW2100_INTA_FW_INIT_DONE);
3199 }
3200
3201 if (inta & IPW2100_INTA_STATUS_CHANGE) {
3202 IPW_DEBUG_ISR("Status change interrupt\n");
3203 priv->inta_other++;
3204 write_register(
3205 dev, IPW_REG_INTA,
3206 IPW2100_INTA_STATUS_CHANGE);
3207 }
3208
3209 if (inta & IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE) {
3210 IPW_DEBUG_ISR("slave host mode interrupt\n");
3211 priv->inta_other++;
3212 write_register(
3213 dev, IPW_REG_INTA,
3214 IPW2100_INTA_SLAVE_MODE_HOST_COMMAND_DONE);
3215 }
3216
3217 priv->in_isr--;
3218 ipw2100_enable_interrupts(priv);
3219
3220 spin_unlock_irqrestore(&priv->low_lock, flags);
3221
3222 IPW_DEBUG_ISR("exit\n");
3223}
3224
3225
3226static irqreturn_t ipw2100_interrupt(int irq, void *data,
3227 struct pt_regs *regs)
3228{
3229 struct ipw2100_priv *priv = data;
3230 u32 inta, inta_mask;
3231
3232 if (!data)
3233 return IRQ_NONE;
3234
3235 spin_lock(&priv->low_lock);
3236
3237 /* We check to see if we should be ignoring interrupts before
3238 * we touch the hardware. During ucode load if we try and handle
3239 * an interrupt we can cause keyboard problems as well as cause
3240 * the ucode to fail to initialize */
3241 if (!(priv->status & STATUS_INT_ENABLED)) {
3242 /* Shared IRQ */
3243 goto none;
3244 }
3245
3246 read_register(priv->net_dev, IPW_REG_INTA_MASK, &inta_mask);
3247 read_register(priv->net_dev, IPW_REG_INTA, &inta);
3248
3249 if (inta == 0xFFFFFFFF) {
3250 /* Hardware disappeared */
3251 printk(KERN_WARNING DRV_NAME ": IRQ INTA == 0xFFFFFFFF\n");
3252 goto none;
3253 }
3254
3255 inta &= IPW_INTERRUPT_MASK;
3256
3257 if (!(inta & inta_mask)) {
3258 /* Shared interrupt */
3259 goto none;
3260 }
3261
3262 /* We disable the hardware interrupt here just to prevent unneeded
3263 * calls to be made. We disable this again within the actual
3264 * work tasklet, so if another part of the code re-enables the
3265 * interrupt, that is fine */
3266 ipw2100_disable_interrupts(priv);
3267
3268 tasklet_schedule(&priv->irq_tasklet);
3269 spin_unlock(&priv->low_lock);
3270
3271 return IRQ_HANDLED;
3272 none:
3273 spin_unlock(&priv->low_lock);
3274 return IRQ_NONE;
3275}
3276
3277static int ipw2100_tx(struct ieee80211_txb *txb, struct net_device *dev)
3278{
3279 struct ipw2100_priv *priv = ieee80211_priv(dev);
3280 struct list_head *element;
3281 struct ipw2100_tx_packet *packet;
3282 unsigned long flags;
3283
3284 spin_lock_irqsave(&priv->low_lock, flags);
3285
3286 if (!(priv->status & STATUS_ASSOCIATED)) {
3287 IPW_DEBUG_INFO("Can not transmit when not connected.\n");
3288 priv->ieee->stats.tx_carrier_errors++;
3289 netif_stop_queue(dev);
3290 goto fail_unlock;
3291 }
3292
3293 if (list_empty(&priv->tx_free_list))
3294 goto fail_unlock;
3295
3296 element = priv->tx_free_list.next;
3297 packet = list_entry(element, struct ipw2100_tx_packet, list);
3298
3299 packet->info.d_struct.txb = txb;
3300
3301 IPW_DEBUG_TX("Sending fragment (%d bytes):\n",
3302 txb->fragments[0]->len);
3303 printk_buf(IPW_DL_TX, txb->fragments[0]->data,
3304 txb->fragments[0]->len);
3305
3306 packet->jiffy_start = jiffies;
3307
3308 list_del(element);
3309 DEC_STAT(&priv->tx_free_stat);
3310
3311 list_add_tail(element, &priv->tx_pend_list);
3312 INC_STAT(&priv->tx_pend_stat);
3313
3314 ipw2100_tx_send_data(priv);
3315
3316 spin_unlock_irqrestore(&priv->low_lock, flags);
3317 return 0;
3318
3319 fail_unlock:
3320 netif_stop_queue(dev);
3321 spin_unlock_irqrestore(&priv->low_lock, flags);
3322 return 1;
3323}
3324
3325
3326static int ipw2100_msg_allocate(struct ipw2100_priv *priv)
3327{
3328 int i, j, err = -EINVAL;
3329 void *v;
3330 dma_addr_t p;
3331
3332 priv->msg_buffers = (struct ipw2100_tx_packet *)kmalloc(
3333 IPW_COMMAND_POOL_SIZE * sizeof(struct ipw2100_tx_packet),
3334 GFP_KERNEL);
3335 if (!priv->msg_buffers) {
3336 printk(KERN_ERR DRV_NAME ": %s: PCI alloc failed for msg "
3337 "buffers.\n", priv->net_dev->name);
3338 return -ENOMEM;
3339 }
3340
3341 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3342 v = pci_alloc_consistent(
3343 priv->pci_dev,
3344 sizeof(struct ipw2100_cmd_header),
3345 &p);
3346 if (!v) {
3347 printk(KERN_ERR DRV_NAME ": "
3348 "%s: PCI alloc failed for msg "
3349 "buffers.\n",
3350 priv->net_dev->name);
3351 err = -ENOMEM;
3352 break;
3353 }
3354
3355 memset(v, 0, sizeof(struct ipw2100_cmd_header));
3356
3357 priv->msg_buffers[i].type = COMMAND;
3358 priv->msg_buffers[i].info.c_struct.cmd =
3359 (struct ipw2100_cmd_header*)v;
3360 priv->msg_buffers[i].info.c_struct.cmd_phys = p;
3361 }
3362
3363 if (i == IPW_COMMAND_POOL_SIZE)
3364 return 0;
3365
3366 for (j = 0; j < i; j++) {
3367 pci_free_consistent(
3368 priv->pci_dev,
3369 sizeof(struct ipw2100_cmd_header),
3370 priv->msg_buffers[j].info.c_struct.cmd,
3371 priv->msg_buffers[j].info.c_struct.cmd_phys);
3372 }
3373
3374 kfree(priv->msg_buffers);
3375 priv->msg_buffers = NULL;
3376
3377 return err;
3378}
3379
3380static int ipw2100_msg_initialize(struct ipw2100_priv *priv)
3381{
3382 int i;
3383
3384 INIT_LIST_HEAD(&priv->msg_free_list);
3385 INIT_LIST_HEAD(&priv->msg_pend_list);
3386
3387 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++)
3388 list_add_tail(&priv->msg_buffers[i].list, &priv->msg_free_list);
3389 SET_STAT(&priv->msg_free_stat, i);
3390
3391 return 0;
3392}
3393
3394static void ipw2100_msg_free(struct ipw2100_priv *priv)
3395{
3396 int i;
3397
3398 if (!priv->msg_buffers)
3399 return;
3400
3401 for (i = 0; i < IPW_COMMAND_POOL_SIZE; i++) {
3402 pci_free_consistent(priv->pci_dev,
3403 sizeof(struct ipw2100_cmd_header),
3404 priv->msg_buffers[i].info.c_struct.cmd,
3405 priv->msg_buffers[i].info.c_struct.cmd_phys);
3406 }
3407
3408 kfree(priv->msg_buffers);
3409 priv->msg_buffers = NULL;
3410}
3411
3412static ssize_t show_pci(struct device *d, struct device_attribute *attr,
3413 char *buf)
3414{
3415 struct pci_dev *pci_dev = container_of(d, struct pci_dev, dev);
3416 char *out = buf;
3417 int i, j;
3418 u32 val;
3419
3420 for (i = 0; i < 16; i++) {
3421 out += sprintf(out, "[%08X] ", i * 16);
3422 for (j = 0; j < 16; j += 4) {
3423 pci_read_config_dword(pci_dev, i * 16 + j, &val);
3424 out += sprintf(out, "%08X ", val);
3425 }
3426 out += sprintf(out, "\n");
3427 }
3428
3429 return out - buf;
3430}
3431static DEVICE_ATTR(pci, S_IRUGO, show_pci, NULL);
3432
3433static ssize_t show_cfg(struct device *d, struct device_attribute *attr,
3434 char *buf)
3435{
3436 struct ipw2100_priv *p = d->driver_data;
3437 return sprintf(buf, "0x%08x\n", (int)p->config);
3438}
3439static DEVICE_ATTR(cfg, S_IRUGO, show_cfg, NULL);
3440
3441static ssize_t show_status(struct device *d, struct device_attribute *attr,
3442 char *buf)
3443{
3444 struct ipw2100_priv *p = d->driver_data;
3445 return sprintf(buf, "0x%08x\n", (int)p->status);
3446}
3447static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
3448
3449static ssize_t show_capability(struct device *d, struct device_attribute *attr,
3450 char *buf)
3451{
3452 struct ipw2100_priv *p = d->driver_data;
3453 return sprintf(buf, "0x%08x\n", (int)p->capability);
3454}
3455static DEVICE_ATTR(capability, S_IRUGO, show_capability, NULL);
3456
3457
3458#define IPW2100_REG(x) { IPW_ ##x, #x }
3459static const struct {
3460 u32 addr;
3461 const char *name;
3462} hw_data[] = {
3463 IPW2100_REG(REG_GP_CNTRL),
3464 IPW2100_REG(REG_GPIO),
3465 IPW2100_REG(REG_INTA),
3466 IPW2100_REG(REG_INTA_MASK),
3467 IPW2100_REG(REG_RESET_REG),
3468};
3469#define IPW2100_NIC(x, s) { x, #x, s }
3470static const struct {
3471 u32 addr;
3472 const char *name;
3473 size_t size;
3474} nic_data[] = {
3475 IPW2100_NIC(IPW2100_CONTROL_REG, 2),
3476 IPW2100_NIC(0x210014, 1),
3477 IPW2100_NIC(0x210000, 1),
3478};
3479#define IPW2100_ORD(x, d) { IPW_ORD_ ##x, #x, d }
3480static const struct {
3481 u8 index;
3482 const char *name;
3483 const char *desc;
3484} ord_data[] = {
3485 IPW2100_ORD(STAT_TX_HOST_REQUESTS, "requested Host Tx's (MSDU)"),
3486 IPW2100_ORD(STAT_TX_HOST_COMPLETE, "successful Host Tx's (MSDU)"),
3487 IPW2100_ORD(STAT_TX_DIR_DATA, "successful Directed Tx's (MSDU)"),
3488 IPW2100_ORD(STAT_TX_DIR_DATA1, "successful Directed Tx's (MSDU) @ 1MB"),
3489 IPW2100_ORD(STAT_TX_DIR_DATA2, "successful Directed Tx's (MSDU) @ 2MB"),
3490 IPW2100_ORD(STAT_TX_DIR_DATA5_5, "successful Directed Tx's (MSDU) @ 5_5MB"),
3491 IPW2100_ORD(STAT_TX_DIR_DATA11, "successful Directed Tx's (MSDU) @ 11MB"),
3492 IPW2100_ORD(STAT_TX_NODIR_DATA1, "successful Non_Directed Tx's (MSDU) @ 1MB"),
3493 IPW2100_ORD(STAT_TX_NODIR_DATA2, "successful Non_Directed Tx's (MSDU) @ 2MB"),
3494 IPW2100_ORD(STAT_TX_NODIR_DATA5_5, "successful Non_Directed Tx's (MSDU) @ 5.5MB"),
3495 IPW2100_ORD(STAT_TX_NODIR_DATA11, "successful Non_Directed Tx's (MSDU) @ 11MB"),
3496 IPW2100_ORD(STAT_NULL_DATA, "successful NULL data Tx's"),
3497 IPW2100_ORD(STAT_TX_RTS, "successful Tx RTS"),
3498 IPW2100_ORD(STAT_TX_CTS, "successful Tx CTS"),
3499 IPW2100_ORD(STAT_TX_ACK, "successful Tx ACK"),
3500 IPW2100_ORD(STAT_TX_ASSN, "successful Association Tx's"),
3501 IPW2100_ORD(STAT_TX_ASSN_RESP, "successful Association response Tx's"),
3502 IPW2100_ORD(STAT_TX_REASSN, "successful Reassociation Tx's"),
3503 IPW2100_ORD(STAT_TX_REASSN_RESP, "successful Reassociation response Tx's"),
3504 IPW2100_ORD(STAT_TX_PROBE, "probes successfully transmitted"),
3505 IPW2100_ORD(STAT_TX_PROBE_RESP, "probe responses successfully transmitted"),
3506 IPW2100_ORD(STAT_TX_BEACON, "tx beacon"),
3507 IPW2100_ORD(STAT_TX_ATIM, "Tx ATIM"),
3508 IPW2100_ORD(STAT_TX_DISASSN, "successful Disassociation TX"),
3509 IPW2100_ORD(STAT_TX_AUTH, "successful Authentication Tx"),
3510 IPW2100_ORD(STAT_TX_DEAUTH, "successful Deauthentication TX"),
3511 IPW2100_ORD(STAT_TX_TOTAL_BYTES, "Total successful Tx data bytes"),
3512 IPW2100_ORD(STAT_TX_RETRIES, "Tx retries"),
3513 IPW2100_ORD(STAT_TX_RETRY1, "Tx retries at 1MBPS"),
3514 IPW2100_ORD(STAT_TX_RETRY2, "Tx retries at 2MBPS"),
3515 IPW2100_ORD(STAT_TX_RETRY5_5, "Tx retries at 5.5MBPS"),
3516 IPW2100_ORD(STAT_TX_RETRY11, "Tx retries at 11MBPS"),
3517 IPW2100_ORD(STAT_TX_FAILURES, "Tx Failures"),
3518 IPW2100_ORD(STAT_TX_MAX_TRIES_IN_HOP,"times max tries in a hop failed"),
3519 IPW2100_ORD(STAT_TX_DISASSN_FAIL, "times disassociation failed"),
3520 IPW2100_ORD(STAT_TX_ERR_CTS, "missed/bad CTS frames"),
3521 IPW2100_ORD(STAT_TX_ERR_ACK, "tx err due to acks"),
3522 IPW2100_ORD(STAT_RX_HOST, "packets passed to host"),
3523 IPW2100_ORD(STAT_RX_DIR_DATA, "directed packets"),
3524 IPW2100_ORD(STAT_RX_DIR_DATA1, "directed packets at 1MB"),
3525 IPW2100_ORD(STAT_RX_DIR_DATA2, "directed packets at 2MB"),
3526 IPW2100_ORD(STAT_RX_DIR_DATA5_5, "directed packets at 5.5MB"),
3527 IPW2100_ORD(STAT_RX_DIR_DATA11, "directed packets at 11MB"),
3528 IPW2100_ORD(STAT_RX_NODIR_DATA,"nondirected packets"),
3529 IPW2100_ORD(STAT_RX_NODIR_DATA1, "nondirected packets at 1MB"),
3530 IPW2100_ORD(STAT_RX_NODIR_DATA2, "nondirected packets at 2MB"),
3531 IPW2100_ORD(STAT_RX_NODIR_DATA5_5, "nondirected packets at 5.5MB"),
3532 IPW2100_ORD(STAT_RX_NODIR_DATA11, "nondirected packets at 11MB"),
3533 IPW2100_ORD(STAT_RX_NULL_DATA, "null data rx's"),
3534 IPW2100_ORD(STAT_RX_RTS, "Rx RTS"),
3535 IPW2100_ORD(STAT_RX_CTS, "Rx CTS"),
3536 IPW2100_ORD(STAT_RX_ACK, "Rx ACK"),
3537 IPW2100_ORD(STAT_RX_CFEND, "Rx CF End"),
3538 IPW2100_ORD(STAT_RX_CFEND_ACK, "Rx CF End + CF Ack"),
3539 IPW2100_ORD(STAT_RX_ASSN, "Association Rx's"),
3540 IPW2100_ORD(STAT_RX_ASSN_RESP, "Association response Rx's"),
3541 IPW2100_ORD(STAT_RX_REASSN, "Reassociation Rx's"),
3542 IPW2100_ORD(STAT_RX_REASSN_RESP, "Reassociation response Rx's"),
3543 IPW2100_ORD(STAT_RX_PROBE, "probe Rx's"),
3544 IPW2100_ORD(STAT_RX_PROBE_RESP, "probe response Rx's"),
3545 IPW2100_ORD(STAT_RX_BEACON, "Rx beacon"),
3546 IPW2100_ORD(STAT_RX_ATIM, "Rx ATIM"),
3547 IPW2100_ORD(STAT_RX_DISASSN, "disassociation Rx"),
3548 IPW2100_ORD(STAT_RX_AUTH, "authentication Rx"),
3549 IPW2100_ORD(STAT_RX_DEAUTH, "deauthentication Rx"),
3550 IPW2100_ORD(STAT_RX_TOTAL_BYTES,"Total rx data bytes received"),
3551 IPW2100_ORD(STAT_RX_ERR_CRC, "packets with Rx CRC error"),
3552 IPW2100_ORD(STAT_RX_ERR_CRC1, "Rx CRC errors at 1MB"),
3553 IPW2100_ORD(STAT_RX_ERR_CRC2, "Rx CRC errors at 2MB"),
3554 IPW2100_ORD(STAT_RX_ERR_CRC5_5, "Rx CRC errors at 5.5MB"),
3555 IPW2100_ORD(STAT_RX_ERR_CRC11, "Rx CRC errors at 11MB"),
3556 IPW2100_ORD(STAT_RX_DUPLICATE1, "duplicate rx packets at 1MB"),
3557 IPW2100_ORD(STAT_RX_DUPLICATE2, "duplicate rx packets at 2MB"),
3558 IPW2100_ORD(STAT_RX_DUPLICATE5_5, "duplicate rx packets at 5.5MB"),
3559 IPW2100_ORD(STAT_RX_DUPLICATE11, "duplicate rx packets at 11MB"),
3560 IPW2100_ORD(STAT_RX_DUPLICATE, "duplicate rx packets"),
3561 IPW2100_ORD(PERS_DB_LOCK, "locking fw permanent db"),
3562 IPW2100_ORD(PERS_DB_SIZE, "size of fw permanent db"),
3563 IPW2100_ORD(PERS_DB_ADDR, "address of fw permanent db"),
3564 IPW2100_ORD(STAT_RX_INVALID_PROTOCOL, "rx frames with invalid protocol"),
3565 IPW2100_ORD(SYS_BOOT_TIME, "Boot time"),
3566 IPW2100_ORD(STAT_RX_NO_BUFFER, "rx frames rejected due to no buffer"),
3567 IPW2100_ORD(STAT_RX_MISSING_FRAG, "rx frames dropped due to missing fragment"),
3568 IPW2100_ORD(STAT_RX_ORPHAN_FRAG, "rx frames dropped due to non-sequential fragment"),
3569 IPW2100_ORD(STAT_RX_ORPHAN_FRAME, "rx frames dropped due to unmatched 1st frame"),
3570 IPW2100_ORD(STAT_RX_FRAG_AGEOUT, "rx frames dropped due to uncompleted frame"),
3571 IPW2100_ORD(STAT_RX_ICV_ERRORS, "ICV errors during decryption"),
3572 IPW2100_ORD(STAT_PSP_SUSPENSION,"times adapter suspended"),
3573 IPW2100_ORD(STAT_PSP_BCN_TIMEOUT, "beacon timeout"),
3574 IPW2100_ORD(STAT_PSP_POLL_TIMEOUT, "poll response timeouts"),
3575 IPW2100_ORD(STAT_PSP_NONDIR_TIMEOUT, "timeouts waiting for last {broad,multi}cast pkt"),
3576 IPW2100_ORD(STAT_PSP_RX_DTIMS, "PSP DTIMs received"),
3577 IPW2100_ORD(STAT_PSP_RX_TIMS, "PSP TIMs received"),
3578 IPW2100_ORD(STAT_PSP_STATION_ID,"PSP Station ID"),
3579 IPW2100_ORD(LAST_ASSN_TIME, "RTC time of last association"),
3580 IPW2100_ORD(STAT_PERCENT_MISSED_BCNS,"current calculation of % missed beacons"),
3581 IPW2100_ORD(STAT_PERCENT_RETRIES,"current calculation of % missed tx retries"),
3582 IPW2100_ORD(ASSOCIATED_AP_PTR, "0 if not associated, else pointer to AP table entry"),
3583 IPW2100_ORD(AVAILABLE_AP_CNT, "AP's decsribed in the AP table"),
3584 IPW2100_ORD(AP_LIST_PTR, "Ptr to list of available APs"),
3585 IPW2100_ORD(STAT_AP_ASSNS, "associations"),
3586 IPW2100_ORD(STAT_ASSN_FAIL, "association failures"),
3587 IPW2100_ORD(STAT_ASSN_RESP_FAIL,"failures due to response fail"),
3588 IPW2100_ORD(STAT_FULL_SCANS, "full scans"),
3589 IPW2100_ORD(CARD_DISABLED, "Card Disabled"),
3590 IPW2100_ORD(STAT_ROAM_INHIBIT, "times roaming was inhibited due to activity"),
3591 IPW2100_ORD(RSSI_AT_ASSN, "RSSI of associated AP at time of association"),
3592 IPW2100_ORD(STAT_ASSN_CAUSE1, "reassociation: no probe response or TX on hop"),
3593 IPW2100_ORD(STAT_ASSN_CAUSE2, "reassociation: poor tx/rx quality"),
3594 IPW2100_ORD(STAT_ASSN_CAUSE3, "reassociation: tx/rx quality (excessive AP load"),
3595 IPW2100_ORD(STAT_ASSN_CAUSE4, "reassociation: AP RSSI level"),
3596 IPW2100_ORD(STAT_ASSN_CAUSE5, "reassociations due to load leveling"),
3597 IPW2100_ORD(STAT_AUTH_FAIL, "times authentication failed"),
3598 IPW2100_ORD(STAT_AUTH_RESP_FAIL,"times authentication response failed"),
3599 IPW2100_ORD(STATION_TABLE_CNT, "entries in association table"),
3600 IPW2100_ORD(RSSI_AVG_CURR, "Current avg RSSI"),
3601 IPW2100_ORD(POWER_MGMT_MODE, "Power mode - 0=CAM, 1=PSP"),
3602 IPW2100_ORD(COUNTRY_CODE, "IEEE country code as recv'd from beacon"),
3603 IPW2100_ORD(COUNTRY_CHANNELS, "channels suported by country"),
3604 IPW2100_ORD(RESET_CNT, "adapter resets (warm)"),
3605 IPW2100_ORD(BEACON_INTERVAL, "Beacon interval"),
3606 IPW2100_ORD(ANTENNA_DIVERSITY, "TRUE if antenna diversity is disabled"),
3607 IPW2100_ORD(DTIM_PERIOD, "beacon intervals between DTIMs"),
3608 IPW2100_ORD(OUR_FREQ, "current radio freq lower digits - channel ID"),
3609 IPW2100_ORD(RTC_TIME, "current RTC time"),
3610 IPW2100_ORD(PORT_TYPE, "operating mode"),
3611 IPW2100_ORD(CURRENT_TX_RATE, "current tx rate"),
3612 IPW2100_ORD(SUPPORTED_RATES, "supported tx rates"),
3613 IPW2100_ORD(ATIM_WINDOW, "current ATIM Window"),
3614 IPW2100_ORD(BASIC_RATES, "basic tx rates"),
3615 IPW2100_ORD(NIC_HIGHEST_RATE, "NIC highest tx rate"),
3616 IPW2100_ORD(AP_HIGHEST_RATE, "AP highest tx rate"),
3617 IPW2100_ORD(CAPABILITIES, "Management frame capability field"),
3618 IPW2100_ORD(AUTH_TYPE, "Type of authentication"),
3619 IPW2100_ORD(RADIO_TYPE, "Adapter card platform type"),
3620 IPW2100_ORD(RTS_THRESHOLD, "Min packet length for RTS handshaking"),
3621 IPW2100_ORD(INT_MODE, "International mode"),
3622 IPW2100_ORD(FRAGMENTATION_THRESHOLD, "protocol frag threshold"),
3623 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_START_ADDRESS, "EEPROM offset in SRAM"),
3624 IPW2100_ORD(EEPROM_SRAM_DB_BLOCK_SIZE, "EEPROM size in SRAM"),
3625 IPW2100_ORD(EEPROM_SKU_CAPABILITY, "EEPROM SKU Capability"),
3626 IPW2100_ORD(EEPROM_IBSS_11B_CHANNELS, "EEPROM IBSS 11b channel set"),
3627 IPW2100_ORD(MAC_VERSION, "MAC Version"),
3628 IPW2100_ORD(MAC_REVISION, "MAC Revision"),
3629 IPW2100_ORD(RADIO_VERSION, "Radio Version"),
3630 IPW2100_ORD(NIC_MANF_DATE_TIME, "MANF Date/Time STAMP"),
3631 IPW2100_ORD(UCODE_VERSION, "Ucode Version"),
3632};
3633
3634
3635static ssize_t show_registers(struct device *d, struct device_attribute *attr,
3636 char *buf)
3637{
3638 int i;
3639 struct ipw2100_priv *priv = dev_get_drvdata(d);
3640 struct net_device *dev = priv->net_dev;
3641 char * out = buf;
3642 u32 val = 0;
3643
3644 out += sprintf(out, "%30s [Address ] : Hex\n", "Register");
3645
3646 for (i = 0; i < (sizeof(hw_data) / sizeof(*hw_data)); i++) {
3647 read_register(dev, hw_data[i].addr, &val);
3648 out += sprintf(out, "%30s [%08X] : %08X\n",
3649 hw_data[i].name, hw_data[i].addr, val);
3650 }
3651
3652 return out - buf;
3653}
3654static DEVICE_ATTR(registers, S_IRUGO, show_registers, NULL);
3655
3656
3657static ssize_t show_hardware(struct device *d, struct device_attribute *attr,
3658 char *buf)
3659{
3660 struct ipw2100_priv *priv = dev_get_drvdata(d);
3661 struct net_device *dev = priv->net_dev;
3662 char * out = buf;
3663 int i;
3664
3665 out += sprintf(out, "%30s [Address ] : Hex\n", "NIC entry");
3666
3667 for (i = 0; i < (sizeof(nic_data) / sizeof(*nic_data)); i++) {
3668 u8 tmp8;
3669 u16 tmp16;
3670 u32 tmp32;
3671
3672 switch (nic_data[i].size) {
3673 case 1:
3674 read_nic_byte(dev, nic_data[i].addr, &tmp8);
3675 out += sprintf(out, "%30s [%08X] : %02X\n",
3676 nic_data[i].name, nic_data[i].addr,
3677 tmp8);
3678 break;
3679 case 2:
3680 read_nic_word(dev, nic_data[i].addr, &tmp16);
3681 out += sprintf(out, "%30s [%08X] : %04X\n",
3682 nic_data[i].name, nic_data[i].addr,
3683 tmp16);
3684 break;
3685 case 4:
3686 read_nic_dword(dev, nic_data[i].addr, &tmp32);
3687 out += sprintf(out, "%30s [%08X] : %08X\n",
3688 nic_data[i].name, nic_data[i].addr,
3689 tmp32);
3690 break;
3691 }
3692 }
3693 return out - buf;
3694}
3695static DEVICE_ATTR(hardware, S_IRUGO, show_hardware, NULL);
3696
3697
3698static ssize_t show_memory(struct device *d, struct device_attribute *attr,
3699 char *buf)
3700{
3701 struct ipw2100_priv *priv = dev_get_drvdata(d);
3702 struct net_device *dev = priv->net_dev;
3703 static unsigned long loop = 0;
3704 int len = 0;
3705 u32 buffer[4];
3706 int i;
3707 char line[81];
3708
3709 if (loop >= 0x30000)
3710 loop = 0;
3711
3712 /* sysfs provides us PAGE_SIZE buffer */
3713 while (len < PAGE_SIZE - 128 && loop < 0x30000) {
3714
3715 if (priv->snapshot[0]) for (i = 0; i < 4; i++)
3716 buffer[i] = *(u32 *)SNAPSHOT_ADDR(loop + i * 4);
3717 else for (i = 0; i < 4; i++)
3718 read_nic_dword(dev, loop + i * 4, &buffer[i]);
3719
3720 if (priv->dump_raw)
3721 len += sprintf(buf + len,
3722 "%c%c%c%c"
3723 "%c%c%c%c"
3724 "%c%c%c%c"
3725 "%c%c%c%c",
3726 ((u8*)buffer)[0x0],
3727 ((u8*)buffer)[0x1],
3728 ((u8*)buffer)[0x2],
3729 ((u8*)buffer)[0x3],
3730 ((u8*)buffer)[0x4],
3731 ((u8*)buffer)[0x5],
3732 ((u8*)buffer)[0x6],
3733 ((u8*)buffer)[0x7],
3734 ((u8*)buffer)[0x8],
3735 ((u8*)buffer)[0x9],
3736 ((u8*)buffer)[0xa],
3737 ((u8*)buffer)[0xb],
3738 ((u8*)buffer)[0xc],
3739 ((u8*)buffer)[0xd],
3740 ((u8*)buffer)[0xe],
3741 ((u8*)buffer)[0xf]);
3742 else
3743 len += sprintf(buf + len, "%s\n",
3744 snprint_line(line, sizeof(line),
3745 (u8*)buffer, 16, loop));
3746 loop += 16;
3747 }
3748
3749 return len;
3750}
3751
3752static ssize_t store_memory(struct device *d, struct device_attribute *attr,
3753 const char *buf, size_t count)
3754{
3755 struct ipw2100_priv *priv = dev_get_drvdata(d);
3756 struct net_device *dev = priv->net_dev;
3757 const char *p = buf;
3758
3759 if (count < 1)
3760 return count;
3761
3762 if (p[0] == '1' ||
3763 (count >= 2 && tolower(p[0]) == 'o' && tolower(p[1]) == 'n')) {
3764 IPW_DEBUG_INFO("%s: Setting memory dump to RAW mode.\n",
3765 dev->name);
3766 priv->dump_raw = 1;
3767
3768 } else if (p[0] == '0' || (count >= 2 && tolower(p[0]) == 'o' &&
3769 tolower(p[1]) == 'f')) {
3770 IPW_DEBUG_INFO("%s: Setting memory dump to HEX mode.\n",
3771 dev->name);
3772 priv->dump_raw = 0;
3773
3774 } else if (tolower(p[0]) == 'r') {
3775 IPW_DEBUG_INFO("%s: Resetting firmware snapshot.\n",
3776 dev->name);
3777 ipw2100_snapshot_free(priv);
3778
3779 } else
3780 IPW_DEBUG_INFO("%s: Usage: 0|on = HEX, 1|off = RAW, "
3781 "reset = clear memory snapshot\n",
3782 dev->name);
3783
3784 return count;
3785}
3786static DEVICE_ATTR(memory, S_IWUSR|S_IRUGO, show_memory, store_memory);
3787
3788
3789static ssize_t show_ordinals(struct device *d, struct device_attribute *attr,
3790 char *buf)
3791{
3792 struct ipw2100_priv *priv = dev_get_drvdata(d);
3793 u32 val = 0;
3794 int len = 0;
3795 u32 val_len;
3796 static int loop = 0;
3797
3798 if (loop >= sizeof(ord_data) / sizeof(*ord_data))
3799 loop = 0;
3800
3801 /* sysfs provides us PAGE_SIZE buffer */
3802 while (len < PAGE_SIZE - 128 &&
3803 loop < (sizeof(ord_data) / sizeof(*ord_data))) {
3804
3805 val_len = sizeof(u32);
3806
3807 if (ipw2100_get_ordinal(priv, ord_data[loop].index, &val,
3808 &val_len))
3809 len += sprintf(buf + len, "[0x%02X] = ERROR %s\n",
3810 ord_data[loop].index,
3811 ord_data[loop].desc);
3812 else
3813 len += sprintf(buf + len, "[0x%02X] = 0x%08X %s\n",
3814 ord_data[loop].index, val,
3815 ord_data[loop].desc);
3816 loop++;
3817 }
3818
3819 return len;
3820}
3821static DEVICE_ATTR(ordinals, S_IRUGO, show_ordinals, NULL);
3822
3823
3824static ssize_t show_stats(struct device *d, struct device_attribute *attr,
3825 char *buf)
3826{
3827 struct ipw2100_priv *priv = dev_get_drvdata(d);
3828 char * out = buf;
3829
3830 out += sprintf(out, "interrupts: %d {tx: %d, rx: %d, other: %d}\n",
3831 priv->interrupts, priv->tx_interrupts,
3832 priv->rx_interrupts, priv->inta_other);
3833 out += sprintf(out, "firmware resets: %d\n", priv->resets);
3834 out += sprintf(out, "firmware hangs: %d\n", priv->hangs);
3835#ifdef CONFIG_IPW_DEBUG
3836 out += sprintf(out, "packet mismatch image: %s\n",
3837 priv->snapshot[0] ? "YES" : "NO");
3838#endif
3839
3840 return out - buf;
3841}
3842static DEVICE_ATTR(stats, S_IRUGO, show_stats, NULL);
3843
3844
3845static int ipw2100_switch_mode(struct ipw2100_priv *priv, u32 mode)
3846{
3847 int err;
3848
3849 if (mode == priv->ieee->iw_mode)
3850 return 0;
3851
3852 err = ipw2100_disable_adapter(priv);
3853 if (err) {
3854 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
3855 priv->net_dev->name, err);
3856 return err;
3857 }
3858
3859 switch (mode) {
3860 case IW_MODE_INFRA:
3861 priv->net_dev->type = ARPHRD_ETHER;
3862 break;
3863 case IW_MODE_ADHOC:
3864 priv->net_dev->type = ARPHRD_ETHER;
3865 break;
3866#ifdef CONFIG_IPW2100_MONITOR
3867 case IW_MODE_MONITOR:
3868 priv->last_mode = priv->ieee->iw_mode;
3869 priv->net_dev->type = ARPHRD_IEEE80211;
3870 break;
3871#endif /* CONFIG_IPW2100_MONITOR */
3872 }
3873
3874 priv->ieee->iw_mode = mode;
3875
3876#ifdef CONFIG_PM
3877 /* Indicate ipw2100_download_firmware download firmware
3878 * from disk instead of memory. */
3879 ipw2100_firmware.version = 0;
3880#endif
3881
3882 printk(KERN_INFO "%s: Reseting on mode change.\n",
3883 priv->net_dev->name);
3884 priv->reset_backoff = 0;
3885 schedule_reset(priv);
3886
3887 return 0;
3888}
3889
3890static ssize_t show_internals(struct device *d, struct device_attribute *attr,
3891 char *buf)
3892{
3893 struct ipw2100_priv *priv = dev_get_drvdata(d);
3894 int len = 0;
3895
3896#define DUMP_VAR(x,y) len += sprintf(buf + len, # x ": %" # y "\n", priv-> x)
3897
3898 if (priv->status & STATUS_ASSOCIATED)
3899 len += sprintf(buf + len, "connected: %lu\n",
3900 get_seconds() - priv->connect_start);
3901 else
3902 len += sprintf(buf + len, "not connected\n");
3903
3904 DUMP_VAR(ieee->crypt[priv->ieee->tx_keyidx], p);
3905 DUMP_VAR(status, 08lx);
3906 DUMP_VAR(config, 08lx);
3907 DUMP_VAR(capability, 08lx);
3908
3909 len += sprintf(buf + len, "last_rtc: %lu\n", (unsigned long)priv->last_rtc);
3910
3911 DUMP_VAR(fatal_error, d);
3912 DUMP_VAR(stop_hang_check, d);
3913 DUMP_VAR(stop_rf_kill, d);
3914 DUMP_VAR(messages_sent, d);
3915
3916 DUMP_VAR(tx_pend_stat.value, d);
3917 DUMP_VAR(tx_pend_stat.hi, d);
3918
3919 DUMP_VAR(tx_free_stat.value, d);
3920 DUMP_VAR(tx_free_stat.lo, d);
3921
3922 DUMP_VAR(msg_free_stat.value, d);
3923 DUMP_VAR(msg_free_stat.lo, d);
3924
3925 DUMP_VAR(msg_pend_stat.value, d);
3926 DUMP_VAR(msg_pend_stat.hi, d);
3927
3928 DUMP_VAR(fw_pend_stat.value, d);
3929 DUMP_VAR(fw_pend_stat.hi, d);
3930
3931 DUMP_VAR(txq_stat.value, d);
3932 DUMP_VAR(txq_stat.lo, d);
3933
3934 DUMP_VAR(ieee->scans, d);
3935 DUMP_VAR(reset_backoff, d);
3936
3937 return len;
3938}
3939static DEVICE_ATTR(internals, S_IRUGO, show_internals, NULL);
3940
3941
3942static ssize_t show_bssinfo(struct device *d, struct device_attribute *attr,
3943 char *buf)
3944{
3945 struct ipw2100_priv *priv = dev_get_drvdata(d);
3946 char essid[IW_ESSID_MAX_SIZE + 1];
3947 u8 bssid[ETH_ALEN];
3948 u32 chan = 0;
3949 char * out = buf;
3950 int length;
3951 int ret;
3952
3953 memset(essid, 0, sizeof(essid));
3954 memset(bssid, 0, sizeof(bssid));
3955
3956 length = IW_ESSID_MAX_SIZE;
3957 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_SSID, essid, &length);
3958 if (ret)
3959 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3960 __LINE__);
3961
3962 length = sizeof(bssid);
3963 ret = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
3964 bssid, &length);
3965 if (ret)
3966 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3967 __LINE__);
3968
3969 length = sizeof(u32);
3970 ret = ipw2100_get_ordinal(priv, IPW_ORD_OUR_FREQ, &chan, &length);
3971 if (ret)
3972 IPW_DEBUG_INFO("failed querying ordinals at line %d\n",
3973 __LINE__);
3974
3975 out += sprintf(out, "ESSID: %s\n", essid);
3976 out += sprintf(out, "BSSID: %02x:%02x:%02x:%02x:%02x:%02x\n",
3977 bssid[0], bssid[1], bssid[2],
3978 bssid[3], bssid[4], bssid[5]);
3979 out += sprintf(out, "Channel: %d\n", chan);
3980
3981 return out - buf;
3982}
3983static DEVICE_ATTR(bssinfo, S_IRUGO, show_bssinfo, NULL);
3984
3985
3986#ifdef CONFIG_IPW_DEBUG
3987static ssize_t show_debug_level(struct device_driver *d, char *buf)
3988{
3989 return sprintf(buf, "0x%08X\n", ipw2100_debug_level);
3990}
3991
3992static ssize_t store_debug_level(struct device_driver *d, const char *buf,
3993 size_t count)
3994{
3995 char *p = (char *)buf;
3996 u32 val;
3997
3998 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
3999 p++;
4000 if (p[0] == 'x' || p[0] == 'X')
4001 p++;
4002 val = simple_strtoul(p, &p, 16);
4003 } else
4004 val = simple_strtoul(p, &p, 10);
4005 if (p == buf)
4006 IPW_DEBUG_INFO(DRV_NAME
4007 ": %s is not in hex or decimal form.\n", buf);
4008 else
4009 ipw2100_debug_level = val;
4010
4011 return strnlen(buf, count);
4012}
4013static DRIVER_ATTR(debug_level, S_IWUSR | S_IRUGO, show_debug_level,
4014 store_debug_level);
4015#endif /* CONFIG_IPW_DEBUG */
4016
4017
4018static ssize_t show_fatal_error(struct device *d,
4019 struct device_attribute *attr, char *buf)
4020{
4021 struct ipw2100_priv *priv = dev_get_drvdata(d);
4022 char *out = buf;
4023 int i;
4024
4025 if (priv->fatal_error)
4026 out += sprintf(out, "0x%08X\n",
4027 priv->fatal_error);
4028 else
4029 out += sprintf(out, "0\n");
4030
4031 for (i = 1; i <= IPW2100_ERROR_QUEUE; i++) {
4032 if (!priv->fatal_errors[(priv->fatal_index - i) %
4033 IPW2100_ERROR_QUEUE])
4034 continue;
4035
4036 out += sprintf(out, "%d. 0x%08X\n", i,
4037 priv->fatal_errors[(priv->fatal_index - i) %
4038 IPW2100_ERROR_QUEUE]);
4039 }
4040
4041 return out - buf;
4042}
4043
4044static ssize_t store_fatal_error(struct device *d,
4045 struct device_attribute *attr, const char *buf, size_t count)
4046{
4047 struct ipw2100_priv *priv = dev_get_drvdata(d);
4048 schedule_reset(priv);
4049 return count;
4050}
4051static DEVICE_ATTR(fatal_error, S_IWUSR|S_IRUGO, show_fatal_error, store_fatal_error);
4052
4053
4054static ssize_t show_scan_age(struct device *d, struct device_attribute *attr,
4055 char *buf)
4056{
4057 struct ipw2100_priv *priv = dev_get_drvdata(d);
4058 return sprintf(buf, "%d\n", priv->ieee->scan_age);
4059}
4060
4061static ssize_t store_scan_age(struct device *d, struct device_attribute *attr,
4062 const char *buf, size_t count)
4063{
4064 struct ipw2100_priv *priv = dev_get_drvdata(d);
4065 struct net_device *dev = priv->net_dev;
4066 char buffer[] = "00000000";
4067 unsigned long len =
4068 (sizeof(buffer) - 1) > count ? count : sizeof(buffer) - 1;
4069 unsigned long val;
4070 char *p = buffer;
4071
4072 IPW_DEBUG_INFO("enter\n");
4073
4074 strncpy(buffer, buf, len);
4075 buffer[len] = 0;
4076
4077 if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
4078 p++;
4079 if (p[0] == 'x' || p[0] == 'X')
4080 p++;
4081 val = simple_strtoul(p, &p, 16);
4082 } else
4083 val = simple_strtoul(p, &p, 10);
4084 if (p == buffer) {
4085 IPW_DEBUG_INFO("%s: user supplied invalid value.\n",
4086 dev->name);
4087 } else {
4088 priv->ieee->scan_age = val;
4089 IPW_DEBUG_INFO("set scan_age = %u\n", priv->ieee->scan_age);
4090 }
4091
4092 IPW_DEBUG_INFO("exit\n");
4093 return len;
4094}
4095static DEVICE_ATTR(scan_age, S_IWUSR | S_IRUGO, show_scan_age, store_scan_age);
4096
4097
4098static ssize_t show_rf_kill(struct device *d, struct device_attribute *attr,
4099 char *buf)
4100{
4101 /* 0 - RF kill not enabled
4102 1 - SW based RF kill active (sysfs)
4103 2 - HW based RF kill active
4104 3 - Both HW and SW baed RF kill active */
4105 struct ipw2100_priv *priv = (struct ipw2100_priv *)d->driver_data;
4106 int val = ((priv->status & STATUS_RF_KILL_SW) ? 0x1 : 0x0) |
4107 (rf_kill_active(priv) ? 0x2 : 0x0);
4108 return sprintf(buf, "%i\n", val);
4109}
4110
4111static int ipw_radio_kill_sw(struct ipw2100_priv *priv, int disable_radio)
4112{
4113 if ((disable_radio ? 1 : 0) ==
4114 (priv->status & STATUS_RF_KILL_SW ? 1 : 0))
4115 return 0 ;
4116
4117 IPW_DEBUG_RF_KILL("Manual SW RF Kill set to: RADIO %s\n",
4118 disable_radio ? "OFF" : "ON");
4119
4120 down(&priv->action_sem);
4121
4122 if (disable_radio) {
4123 priv->status |= STATUS_RF_KILL_SW;
4124 ipw2100_down(priv);
4125 } else {
4126 priv->status &= ~STATUS_RF_KILL_SW;
4127 if (rf_kill_active(priv)) {
4128 IPW_DEBUG_RF_KILL("Can not turn radio back on - "
4129 "disabled by HW switch\n");
4130 /* Make sure the RF_KILL check timer is running */
4131 priv->stop_rf_kill = 0;
4132 cancel_delayed_work(&priv->rf_kill);
4133 queue_delayed_work(priv->workqueue, &priv->rf_kill,
4134 HZ);
4135 } else
4136 schedule_reset(priv);
4137 }
4138
4139 up(&priv->action_sem);
4140 return 1;
4141}
4142
4143static ssize_t store_rf_kill(struct device *d, struct device_attribute *attr,
4144 const char *buf, size_t count)
4145{
4146 struct ipw2100_priv *priv = dev_get_drvdata(d);
4147 ipw_radio_kill_sw(priv, buf[0] == '1');
4148 return count;
4149}
4150static DEVICE_ATTR(rf_kill, S_IWUSR|S_IRUGO, show_rf_kill, store_rf_kill);
4151
4152
4153static struct attribute *ipw2100_sysfs_entries[] = {
4154 &dev_attr_hardware.attr,
4155 &dev_attr_registers.attr,
4156 &dev_attr_ordinals.attr,
4157 &dev_attr_pci.attr,
4158 &dev_attr_stats.attr,
4159 &dev_attr_internals.attr,
4160 &dev_attr_bssinfo.attr,
4161 &dev_attr_memory.attr,
4162 &dev_attr_scan_age.attr,
4163 &dev_attr_fatal_error.attr,
4164 &dev_attr_rf_kill.attr,
4165 &dev_attr_cfg.attr,
4166 &dev_attr_status.attr,
4167 &dev_attr_capability.attr,
4168 NULL,
4169};
4170
4171static struct attribute_group ipw2100_attribute_group = {
4172 .attrs = ipw2100_sysfs_entries,
4173};
4174
4175
4176static int status_queue_allocate(struct ipw2100_priv *priv, int entries)
4177{
4178 struct ipw2100_status_queue *q = &priv->status_queue;
4179
4180 IPW_DEBUG_INFO("enter\n");
4181
4182 q->size = entries * sizeof(struct ipw2100_status);
4183 q->drv = (struct ipw2100_status *)pci_alloc_consistent(
4184 priv->pci_dev, q->size, &q->nic);
4185 if (!q->drv) {
4186 IPW_DEBUG_WARNING(
4187 "Can not allocate status queue.\n");
4188 return -ENOMEM;
4189 }
4190
4191 memset(q->drv, 0, q->size);
4192
4193 IPW_DEBUG_INFO("exit\n");
4194
4195 return 0;
4196}
4197
4198static void status_queue_free(struct ipw2100_priv *priv)
4199{
4200 IPW_DEBUG_INFO("enter\n");
4201
4202 if (priv->status_queue.drv) {
4203 pci_free_consistent(
4204 priv->pci_dev, priv->status_queue.size,
4205 priv->status_queue.drv, priv->status_queue.nic);
4206 priv->status_queue.drv = NULL;
4207 }
4208
4209 IPW_DEBUG_INFO("exit\n");
4210}
4211
4212static int bd_queue_allocate(struct ipw2100_priv *priv,
4213 struct ipw2100_bd_queue *q, int entries)
4214{
4215 IPW_DEBUG_INFO("enter\n");
4216
4217 memset(q, 0, sizeof(struct ipw2100_bd_queue));
4218
4219 q->entries = entries;
4220 q->size = entries * sizeof(struct ipw2100_bd);
4221 q->drv = pci_alloc_consistent(priv->pci_dev, q->size, &q->nic);
4222 if (!q->drv) {
4223 IPW_DEBUG_INFO("can't allocate shared memory for buffer descriptors\n");
4224 return -ENOMEM;
4225 }
4226 memset(q->drv, 0, q->size);
4227
4228 IPW_DEBUG_INFO("exit\n");
4229
4230 return 0;
4231}
4232
4233static void bd_queue_free(struct ipw2100_priv *priv,
4234 struct ipw2100_bd_queue *q)
4235{
4236 IPW_DEBUG_INFO("enter\n");
4237
4238 if (!q)
4239 return;
4240
4241 if (q->drv) {
4242 pci_free_consistent(priv->pci_dev,
4243 q->size, q->drv, q->nic);
4244 q->drv = NULL;
4245 }
4246
4247 IPW_DEBUG_INFO("exit\n");
4248}
4249
4250static void bd_queue_initialize(
4251 struct ipw2100_priv *priv, struct ipw2100_bd_queue * q,
4252 u32 base, u32 size, u32 r, u32 w)
4253{
4254 IPW_DEBUG_INFO("enter\n");
4255
4256 IPW_DEBUG_INFO("initializing bd queue at virt=%p, phys=%08x\n", q->drv, (u32)q->nic);
4257
4258 write_register(priv->net_dev, base, q->nic);
4259 write_register(priv->net_dev, size, q->entries);
4260 write_register(priv->net_dev, r, q->oldest);
4261 write_register(priv->net_dev, w, q->next);
4262
4263 IPW_DEBUG_INFO("exit\n");
4264}
4265
4266static void ipw2100_kill_workqueue(struct ipw2100_priv *priv)
4267{
4268 if (priv->workqueue) {
4269 priv->stop_rf_kill = 1;
4270 priv->stop_hang_check = 1;
4271 cancel_delayed_work(&priv->reset_work);
4272 cancel_delayed_work(&priv->security_work);
4273 cancel_delayed_work(&priv->wx_event_work);
4274 cancel_delayed_work(&priv->hang_check);
4275 cancel_delayed_work(&priv->rf_kill);
4276 destroy_workqueue(priv->workqueue);
4277 priv->workqueue = NULL;
4278 }
4279}
4280
4281static int ipw2100_tx_allocate(struct ipw2100_priv *priv)
4282{
4283 int i, j, err = -EINVAL;
4284 void *v;
4285 dma_addr_t p;
4286
4287 IPW_DEBUG_INFO("enter\n");
4288
4289 err = bd_queue_allocate(priv, &priv->tx_queue, TX_QUEUE_LENGTH);
4290 if (err) {
4291 IPW_DEBUG_ERROR("%s: failed bd_queue_allocate\n",
4292 priv->net_dev->name);
4293 return err;
4294 }
4295
4296 priv->tx_buffers = (struct ipw2100_tx_packet *)kmalloc(
4297 TX_PENDED_QUEUE_LENGTH * sizeof(struct ipw2100_tx_packet),
4298 GFP_ATOMIC);
4299 if (!priv->tx_buffers) {
4300 printk(KERN_ERR DRV_NAME ": %s: alloc failed form tx buffers.\n",
4301 priv->net_dev->name);
4302 bd_queue_free(priv, &priv->tx_queue);
4303 return -ENOMEM;
4304 }
4305
4306 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4307 v = pci_alloc_consistent(
4308 priv->pci_dev, sizeof(struct ipw2100_data_header), &p);
4309 if (!v) {
4310 printk(KERN_ERR DRV_NAME ": %s: PCI alloc failed for tx "
4311 "buffers.\n", priv->net_dev->name);
4312 err = -ENOMEM;
4313 break;
4314 }
4315
4316 priv->tx_buffers[i].type = DATA;
4317 priv->tx_buffers[i].info.d_struct.data = (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(
4327 priv->pci_dev,
4328 sizeof(struct ipw2100_data_header),
4329 priv->tx_buffers[j].info.d_struct.data,
4330 priv->tx_buffers[j].info.d_struct.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.txb);
4364 priv->tx_buffers[i].info.d_struct.txb = NULL;
4365 }
4366
4367 list_add_tail(&priv->tx_buffers[i].list, &priv->tx_free_list);
4368 }
4369
4370 SET_STAT(&priv->tx_free_stat, i);
4371
4372 priv->tx_queue.oldest = 0;
4373 priv->tx_queue.available = priv->tx_queue.entries;
4374 priv->tx_queue.next = 0;
4375 INIT_STAT(&priv->txq_stat);
4376 SET_STAT(&priv->txq_stat, priv->tx_queue.available);
4377
4378 bd_queue_initialize(priv, &priv->tx_queue,
4379 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_BASE,
4380 IPW_MEM_HOST_SHARED_TX_QUEUE_BD_SIZE,
4381 IPW_MEM_HOST_SHARED_TX_QUEUE_READ_INDEX,
4382 IPW_MEM_HOST_SHARED_TX_QUEUE_WRITE_INDEX);
4383
4384 IPW_DEBUG_INFO("exit\n");
4385
4386}
4387
4388static void ipw2100_tx_free(struct ipw2100_priv *priv)
4389{
4390 int i;
4391
4392 IPW_DEBUG_INFO("enter\n");
4393
4394 bd_queue_free(priv, &priv->tx_queue);
4395
4396 if (!priv->tx_buffers)
4397 return;
4398
4399 for (i = 0; i < TX_PENDED_QUEUE_LENGTH; i++) {
4400 if (priv->tx_buffers[i].info.d_struct.txb) {
4401 ieee80211_txb_free(priv->tx_buffers[i].info.d_struct.txb);
4402 priv->tx_buffers[i].info.d_struct.txb = NULL;
4403 }
4404 if (priv->tx_buffers[i].info.d_struct.data)
4405 pci_free_consistent(
4406 priv->pci_dev,
4407 sizeof(struct ipw2100_data_header),
4408 priv->tx_buffers[i].info.d_struct.data,
4409 priv->tx_buffers[i].info.d_struct.data_phys);
4410 }
4411
4412 kfree(priv->tx_buffers);
4413 priv->tx_buffers = NULL;
4414
4415 IPW_DEBUG_INFO("exit\n");
4416}
4417
4418
4419
4420static int ipw2100_rx_allocate(struct ipw2100_priv *priv)
4421{
4422 int i, j, err = -EINVAL;
4423
4424 IPW_DEBUG_INFO("enter\n");
4425
4426 err = bd_queue_allocate(priv, &priv->rx_queue, RX_QUEUE_LENGTH);
4427 if (err) {
4428 IPW_DEBUG_INFO("failed bd_queue_allocate\n");
4429 return err;
4430 }
4431
4432 err = status_queue_allocate(priv, RX_QUEUE_LENGTH);
4433 if (err) {
4434 IPW_DEBUG_INFO("failed status_queue_allocate\n");
4435 bd_queue_free(priv, &priv->rx_queue);
4436 return err;
4437 }
4438
4439 /*
4440 * allocate packets
4441 */
4442 priv->rx_buffers = (struct ipw2100_rx_packet *)
4443 kmalloc(RX_QUEUE_LENGTH * sizeof(struct ipw2100_rx_packet),
4444 GFP_KERNEL);
4445 if (!priv->rx_buffers) {
4446 IPW_DEBUG_INFO("can't allocate rx packet buffer table\n");
4447
4448 bd_queue_free(priv, &priv->rx_queue);
4449
4450 status_queue_free(priv);
4451
4452 return -ENOMEM;
4453 }
4454
4455 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4456 struct ipw2100_rx_packet *packet = &priv->rx_buffers[i];
4457
4458 err = ipw2100_alloc_skb(priv, packet);
4459 if (unlikely(err)) {
4460 err = -ENOMEM;
4461 break;
4462 }
4463
4464 /* The BD holds the cache aligned address */
4465 priv->rx_queue.drv[i].host_addr = packet->dma_addr;
4466 priv->rx_queue.drv[i].buf_length = IPW_RX_NIC_BUFFER_LENGTH;
4467 priv->status_queue.drv[i].status_fields = 0;
4468 }
4469
4470 if (i == RX_QUEUE_LENGTH)
4471 return 0;
4472
4473 for (j = 0; j < i; j++) {
4474 pci_unmap_single(priv->pci_dev, priv->rx_buffers[j].dma_addr,
4475 sizeof(struct ipw2100_rx_packet),
4476 PCI_DMA_FROMDEVICE);
4477 dev_kfree_skb(priv->rx_buffers[j].skb);
4478 }
4479
4480 kfree(priv->rx_buffers);
4481 priv->rx_buffers = NULL;
4482
4483 bd_queue_free(priv, &priv->rx_queue);
4484
4485 status_queue_free(priv);
4486
4487 return err;
4488}
4489
4490static void ipw2100_rx_initialize(struct ipw2100_priv *priv)
4491{
4492 IPW_DEBUG_INFO("enter\n");
4493
4494 priv->rx_queue.oldest = 0;
4495 priv->rx_queue.available = priv->rx_queue.entries - 1;
4496 priv->rx_queue.next = priv->rx_queue.entries - 1;
4497
4498 INIT_STAT(&priv->rxq_stat);
4499 SET_STAT(&priv->rxq_stat, priv->rx_queue.available);
4500
4501 bd_queue_initialize(priv, &priv->rx_queue,
4502 IPW_MEM_HOST_SHARED_RX_BD_BASE,
4503 IPW_MEM_HOST_SHARED_RX_BD_SIZE,
4504 IPW_MEM_HOST_SHARED_RX_READ_INDEX,
4505 IPW_MEM_HOST_SHARED_RX_WRITE_INDEX);
4506
4507 /* set up the status queue */
4508 write_register(priv->net_dev, IPW_MEM_HOST_SHARED_RX_STATUS_BASE,
4509 priv->status_queue.nic);
4510
4511 IPW_DEBUG_INFO("exit\n");
4512}
4513
4514static void ipw2100_rx_free(struct ipw2100_priv *priv)
4515{
4516 int i;
4517
4518 IPW_DEBUG_INFO("enter\n");
4519
4520 bd_queue_free(priv, &priv->rx_queue);
4521 status_queue_free(priv);
4522
4523 if (!priv->rx_buffers)
4524 return;
4525
4526 for (i = 0; i < RX_QUEUE_LENGTH; i++) {
4527 if (priv->rx_buffers[i].rxp) {
4528 pci_unmap_single(priv->pci_dev,
4529 priv->rx_buffers[i].dma_addr,
4530 sizeof(struct ipw2100_rx),
4531 PCI_DMA_FROMDEVICE);
4532 dev_kfree_skb(priv->rx_buffers[i].skb);
4533 }
4534 }
4535
4536 kfree(priv->rx_buffers);
4537 priv->rx_buffers = NULL;
4538
4539 IPW_DEBUG_INFO("exit\n");
4540}
4541
4542static int ipw2100_read_mac_address(struct ipw2100_priv *priv)
4543{
4544 u32 length = ETH_ALEN;
4545 u8 mac[ETH_ALEN];
4546
4547 int err;
4548
4549 err = ipw2100_get_ordinal(priv, IPW_ORD_STAT_ADAPTER_MAC,
4550 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,
4584 ETH_ALEN);
4585 memcpy(priv->net_dev->dev_addr, priv->mac_addr, ETH_ALEN);
4586 } else
4587 memcpy(cmd.host_command_parameters, priv->net_dev->dev_addr,
4588 ETH_ALEN);
4589
4590 err = ipw2100_hw_send_command(priv, &cmd);
4591
4592 IPW_DEBUG_INFO("exit\n");
4593 return err;
4594}
4595
4596static int ipw2100_set_port_type(struct ipw2100_priv *priv, u32 port_type,
4597 int batch_mode)
4598{
4599 struct host_command cmd = {
4600 .host_command = PORT_TYPE,
4601 .host_command_sequence = 0,
4602 .host_command_length = sizeof(u32)
4603 };
4604 int err;
4605
4606 switch (port_type) {
4607 case IW_MODE_INFRA:
4608 cmd.host_command_parameters[0] = IPW_BSS;
4609 break;
4610 case IW_MODE_ADHOC:
4611 cmd.host_command_parameters[0] = IPW_IBSS;
4612 break;
4613 }
4614
4615 IPW_DEBUG_HC("PORT_TYPE: %s\n",
4616 port_type == IPW_IBSS ? "Ad-Hoc" : "Managed");
4617
4618 if (!batch_mode) {
4619 err = ipw2100_disable_adapter(priv);
4620 if (err) {
4621 printk(KERN_ERR DRV_NAME ": %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
4636
4637static int ipw2100_set_channel(struct ipw2100_priv *priv, u32 channel,
4638 int batch_mode)
4639{
4640 struct host_command cmd = {
4641 .host_command = CHANNEL,
4642 .host_command_sequence = 0,
4643 .host_command_length = sizeof(u32)
4644 };
4645 int err;
4646
4647 cmd.host_command_parameters[0] = channel;
4648
4649 IPW_DEBUG_HC("CHANNEL: %d\n", channel);
4650
4651 /* If BSS then we don't support channel selection */
4652 if (priv->ieee->iw_mode == IW_MODE_INFRA)
4653 return 0;
4654
4655 if ((channel != 0) &&
4656 ((channel < REG_MIN_CHANNEL) || (channel > REG_MAX_CHANNEL)))
4657 return -EINVAL;
4658
4659 if (!batch_mode) {
4660 err = ipw2100_disable_adapter(priv);
4661 if (err)
4662 return err;
4663 }
4664
4665 err = ipw2100_hw_send_command(priv, &cmd);
4666 if (err) {
4667 IPW_DEBUG_INFO("Failed to set channel to %d",
4668 channel);
4669 return err;
4670 }
4671
4672 if (channel)
4673 priv->config |= CFG_STATIC_CHANNEL;
4674 else
4675 priv->config &= ~CFG_STATIC_CHANNEL;
4676
4677 priv->channel = channel;
4678
4679 if (!batch_mode) {
4680 err = ipw2100_enable_adapter(priv);
4681 if (err)
4682 return err;
4683 }
4684
4685 return 0;
4686}
4687
4688static int ipw2100_system_config(struct ipw2100_priv *priv, int batch_mode)
4689{
4690 struct host_command cmd = {
4691 .host_command = SYSTEM_CONFIG,
4692 .host_command_sequence = 0,
4693 .host_command_length = 12,
4694 };
4695 u32 ibss_mask, len = sizeof(u32);
4696 int err;
4697
4698 /* Set system configuration */
4699
4700 if (!batch_mode) {
4701 err = ipw2100_disable_adapter(priv);
4702 if (err)
4703 return err;
4704 }
4705
4706 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
4707 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_AUTO_START;
4708
4709 cmd.host_command_parameters[0] |= IPW_CFG_IBSS_MASK |
4710 IPW_CFG_BSS_MASK |
4711 IPW_CFG_802_1x_ENABLE;
4712
4713 if (!(priv->config & CFG_LONG_PREAMBLE))
4714 cmd.host_command_parameters[0] |= IPW_CFG_PREAMBLE_AUTO;
4715
4716 err = ipw2100_get_ordinal(priv,
4717 IPW_ORD_EEPROM_IBSS_11B_CHANNELS,
4718 &ibss_mask, &len);
4719 if (err)
4720 ibss_mask = IPW_IBSS_11B_DEFAULT_MASK;
4721
4722 cmd.host_command_parameters[1] = REG_CHANNEL_MASK;
4723 cmd.host_command_parameters[2] = REG_CHANNEL_MASK & ibss_mask;
4724
4725 /* 11b only */
4726 /*cmd.host_command_parameters[0] |= DIVERSITY_ANTENNA_A;*/
4727
4728 err = ipw2100_hw_send_command(priv, &cmd);
4729 if (err)
4730 return err;
4731
4732/* If IPv6 is configured in the kernel then we don't want to filter out all
4733 * of the multicast packets as IPv6 needs some. */
4734#if !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
4735 cmd.host_command = ADD_MULTICAST;
4736 cmd.host_command_sequence = 0;
4737 cmd.host_command_length = 0;
4738
4739 ipw2100_hw_send_command(priv, &cmd);
4740#endif
4741 if (!batch_mode) {
4742 err = ipw2100_enable_adapter(priv);
4743 if (err)
4744 return err;
4745 }
4746
4747 return 0;
4748}
4749
4750static int ipw2100_set_tx_rates(struct ipw2100_priv *priv, u32 rate,
4751 int batch_mode)
4752{
4753 struct host_command cmd = {
4754 .host_command = BASIC_TX_RATES,
4755 .host_command_sequence = 0,
4756 .host_command_length = 4
4757 };
4758 int err;
4759
4760 cmd.host_command_parameters[0] = rate & TX_RATE_MASK;
4761
4762 if (!batch_mode) {
4763 err = ipw2100_disable_adapter(priv);
4764 if (err)
4765 return err;
4766 }
4767
4768 /* Set BASIC TX Rate first */
4769 ipw2100_hw_send_command(priv, &cmd);
4770
4771 /* Set TX Rate */
4772 cmd.host_command = TX_RATES;
4773 ipw2100_hw_send_command(priv, &cmd);
4774
4775 /* Set MSDU TX Rate */
4776 cmd.host_command = MSDU_TX_RATES;
4777 ipw2100_hw_send_command(priv, &cmd);
4778
4779 if (!batch_mode) {
4780 err = ipw2100_enable_adapter(priv);
4781 if (err)
4782 return err;
4783 }
4784
4785 priv->tx_rates = rate;
4786
4787 return 0;
4788}
4789
4790static int ipw2100_set_power_mode(struct ipw2100_priv *priv,
4791 int power_level)
4792{
4793 struct host_command cmd = {
4794 .host_command = POWER_MODE,
4795 .host_command_sequence = 0,
4796 .host_command_length = 4
4797 };
4798 int err;
4799
4800 cmd.host_command_parameters[0] = power_level;
4801
4802 err = ipw2100_hw_send_command(priv, &cmd);
4803 if (err)
4804 return err;
4805
4806 if (power_level == IPW_POWER_MODE_CAM)
4807 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
4808 else
4809 priv->power_mode = IPW_POWER_ENABLED | power_level;
4810
4811#ifdef CONFIG_IPW2100_TX_POWER
4812 if (priv->port_type == IBSS &&
4813 priv->adhoc_power != DFTL_IBSS_TX_POWER) {
4814 /* Set beacon interval */
4815 cmd.host_command = TX_POWER_INDEX;
4816 cmd.host_command_parameters[0] = (u32)priv->adhoc_power;
4817
4818 err = ipw2100_hw_send_command(priv, &cmd);
4819 if (err)
4820 return err;
4821 }
4822#endif
4823
4824 return 0;
4825}
4826
4827
4828static int ipw2100_set_rts_threshold(struct ipw2100_priv *priv, u32 threshold)
4829{
4830 struct host_command cmd = {
4831 .host_command = RTS_THRESHOLD,
4832 .host_command_sequence = 0,
4833 .host_command_length = 4
4834 };
4835 int err;
4836
4837 if (threshold & RTS_DISABLED)
4838 cmd.host_command_parameters[0] = MAX_RTS_THRESHOLD;
4839 else
4840 cmd.host_command_parameters[0] = threshold & ~RTS_DISABLED;
4841
4842 err = ipw2100_hw_send_command(priv, &cmd);
4843 if (err)
4844 return err;
4845
4846 priv->rts_threshold = threshold;
4847
4848 return 0;
4849}
4850
4851#if 0
4852int ipw2100_set_fragmentation_threshold(struct ipw2100_priv *priv,
4853 u32 threshold, int batch_mode)
4854{
4855 struct host_command cmd = {
4856 .host_command = FRAG_THRESHOLD,
4857 .host_command_sequence = 0,
4858 .host_command_length = 4,
4859 .host_command_parameters[0] = 0,
4860 };
4861 int err;
4862
4863 if (!batch_mode) {
4864 err = ipw2100_disable_adapter(priv);
4865 if (err)
4866 return err;
4867 }
4868
4869 if (threshold == 0)
4870 threshold = DEFAULT_FRAG_THRESHOLD;
4871 else {
4872 threshold = max(threshold, MIN_FRAG_THRESHOLD);
4873 threshold = min(threshold, MAX_FRAG_THRESHOLD);
4874 }
4875
4876 cmd.host_command_parameters[0] = threshold;
4877
4878 IPW_DEBUG_HC("FRAG_THRESHOLD: %u\n", threshold);
4879
4880 err = ipw2100_hw_send_command(priv, &cmd);
4881
4882 if (!batch_mode)
4883 ipw2100_enable_adapter(priv);
4884
4885 if (!err)
4886 priv->frag_threshold = threshold;
4887
4888 return err;
4889}
4890#endif
4891
4892static int ipw2100_set_short_retry(struct ipw2100_priv *priv, u32 retry)
4893{
4894 struct host_command cmd = {
4895 .host_command = SHORT_RETRY_LIMIT,
4896 .host_command_sequence = 0,
4897 .host_command_length = 4
4898 };
4899 int err;
4900
4901 cmd.host_command_parameters[0] = retry;
4902
4903 err = ipw2100_hw_send_command(priv, &cmd);
4904 if (err)
4905 return err;
4906
4907 priv->short_retry_limit = retry;
4908
4909 return 0;
4910}
4911
4912static int ipw2100_set_long_retry(struct ipw2100_priv *priv, u32 retry)
4913{
4914 struct host_command cmd = {
4915 .host_command = LONG_RETRY_LIMIT,
4916 .host_command_sequence = 0,
4917 .host_command_length = 4
4918 };
4919 int err;
4920
4921 cmd.host_command_parameters[0] = retry;
4922
4923 err = ipw2100_hw_send_command(priv, &cmd);
4924 if (err)
4925 return err;
4926
4927 priv->long_retry_limit = retry;
4928
4929 return 0;
4930}
4931
4932
4933static int ipw2100_set_mandatory_bssid(struct ipw2100_priv *priv, u8 *bssid,
4934 int batch_mode)
4935{
4936 struct host_command cmd = {
4937 .host_command = MANDATORY_BSSID,
4938 .host_command_sequence = 0,
4939 .host_command_length = (bssid == NULL) ? 0 : ETH_ALEN
4940 };
4941 int err;
4942
4943#ifdef CONFIG_IPW_DEBUG
4944 if (bssid != NULL)
4945 IPW_DEBUG_HC(
4946 "MANDATORY_BSSID: %02X:%02X:%02X:%02X:%02X:%02X\n",
4947 bssid[0], bssid[1], bssid[2], bssid[3], bssid[4],
4948 bssid[5]);
4949 else
4950 IPW_DEBUG_HC("MANDATORY_BSSID: <clear>\n");
4951#endif
4952 /* if BSSID is empty then we disable mandatory bssid mode */
4953 if (bssid != NULL)
4954 memcpy((u8 *)cmd.host_command_parameters, bssid, ETH_ALEN);
4955
4956 if (!batch_mode) {
4957 err = ipw2100_disable_adapter(priv);
4958 if (err)
4959 return err;
4960 }
4961
4962 err = ipw2100_hw_send_command(priv, &cmd);
4963
4964 if (!batch_mode)
4965 ipw2100_enable_adapter(priv);
4966
4967 return err;
4968}
4969
4970#ifdef CONFIG_IEEE80211_WPA
4971static int ipw2100_disassociate_bssid(struct ipw2100_priv *priv)
4972{
4973 struct host_command cmd = {
4974 .host_command = DISASSOCIATION_BSSID,
4975 .host_command_sequence = 0,
4976 .host_command_length = ETH_ALEN
4977 };
4978 int err;
4979 int len;
4980
4981 IPW_DEBUG_HC("DISASSOCIATION_BSSID\n");
4982
4983 len = ETH_ALEN;
4984 /* The Firmware currently ignores the BSSID and just disassociates from
4985 * the currently associated AP -- but in the off chance that a future
4986 * firmware does use the BSSID provided here, we go ahead and try and
4987 * set it to the currently associated AP's BSSID */
4988 memcpy(cmd.host_command_parameters, priv->bssid, ETH_ALEN);
4989
4990 err = ipw2100_hw_send_command(priv, &cmd);
4991
4992 return err;
4993}
4994#endif
4995
4996/*
4997 * Pseudo code for setting up wpa_frame:
4998 */
4999#if 0
5000void x(struct ieee80211_assoc_frame *wpa_assoc)
5001{
5002 struct ipw2100_wpa_assoc_frame frame;
5003 frame->fixed_ie_mask = IPW_WPA_CAPABILTIES |
5004 IPW_WPA_LISTENINTERVAL |
5005 IPW_WPA_AP_ADDRESS;
5006 frame->capab_info = wpa_assoc->capab_info;
5007 frame->lisen_interval = wpa_assoc->listent_interval;
5008 memcpy(frame->current_ap, wpa_assoc->current_ap, ETH_ALEN);
5009
5010 /* UNKNOWN -- I'm not postivive about this part; don't have any WPA
5011 * setup here to test it with.
5012 *
5013 * Walk the IEs in the wpa_assoc and figure out the total size of all
5014 * that data. Stick that into frame->var_ie_len. Then memcpy() all of
5015 * the IEs from wpa_frame into frame.
5016 */
5017 frame->var_ie_len = calculate_ie_len(wpa_assoc);
5018 memcpy(frame->var_ie, wpa_assoc->variable, frame->var_ie_len);
5019
5020 ipw2100_set_wpa_ie(priv, &frame, 0);
5021}
5022#endif
5023
5024
5025
5026
5027static int ipw2100_set_wpa_ie(struct ipw2100_priv *,
5028 struct ipw2100_wpa_assoc_frame *, int)
5029__attribute__ ((unused));
5030
5031static int ipw2100_set_wpa_ie(struct ipw2100_priv *priv,
5032 struct ipw2100_wpa_assoc_frame *wpa_frame,
5033 int batch_mode)
5034{
5035 struct host_command cmd = {
5036 .host_command = SET_WPA_IE,
5037 .host_command_sequence = 0,
5038 .host_command_length = sizeof(struct ipw2100_wpa_assoc_frame),
5039 };
5040 int err;
5041
5042 IPW_DEBUG_HC("SET_WPA_IE\n");
5043
5044 if (!batch_mode) {
5045 err = ipw2100_disable_adapter(priv);
5046 if (err)
5047 return err;
5048 }
5049
5050 memcpy(cmd.host_command_parameters, wpa_frame,
5051 sizeof(struct ipw2100_wpa_assoc_frame));
5052
5053 err = ipw2100_hw_send_command(priv, &cmd);
5054
5055 if (!batch_mode) {
5056 if (ipw2100_enable_adapter(priv))
5057 err = -EIO;
5058 }
5059
5060 return err;
5061}
5062
5063struct security_info_params {
5064 u32 allowed_ciphers;
5065 u16 version;
5066 u8 auth_mode;
5067 u8 replay_counters_number;
5068 u8 unicast_using_group;
5069} __attribute__ ((packed));
5070
5071static int ipw2100_set_security_information(struct ipw2100_priv *priv,
5072 int auth_mode,
5073 int security_level,
5074 int unicast_using_group,
5075 int batch_mode)
5076{
5077 struct host_command cmd = {
5078 .host_command = SET_SECURITY_INFORMATION,
5079 .host_command_sequence = 0,
5080 .host_command_length = sizeof(struct security_info_params)
5081 };
5082 struct security_info_params *security =
5083 (struct security_info_params *)&cmd.host_command_parameters;
5084 int err;
5085 memset(security, 0, sizeof(*security));
5086
5087 /* If shared key AP authentication is turned on, then we need to
5088 * configure the firmware to try and use it.
5089 *
5090 * Actual data encryption/decryption is handled by the host. */
5091 security->auth_mode = auth_mode;
5092 security->unicast_using_group = unicast_using_group;
5093
5094 switch (security_level) {
5095 default:
5096 case SEC_LEVEL_0:
5097 security->allowed_ciphers = IPW_NONE_CIPHER;
5098 break;
5099 case SEC_LEVEL_1:
5100 security->allowed_ciphers = IPW_WEP40_CIPHER |
5101 IPW_WEP104_CIPHER;
5102 break;
5103 case SEC_LEVEL_2:
5104 security->allowed_ciphers = IPW_WEP40_CIPHER |
5105 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER;
5106 break;
5107 case SEC_LEVEL_2_CKIP:
5108 security->allowed_ciphers = IPW_WEP40_CIPHER |
5109 IPW_WEP104_CIPHER | IPW_CKIP_CIPHER;
5110 break;
5111 case SEC_LEVEL_3:
5112 security->allowed_ciphers = IPW_WEP40_CIPHER |
5113 IPW_WEP104_CIPHER | IPW_TKIP_CIPHER | IPW_CCMP_CIPHER;
5114 break;
5115 }
5116
5117 IPW_DEBUG_HC(
5118 "SET_SECURITY_INFORMATION: auth:%d cipher:0x%02X (level %d)\n",
5119 security->auth_mode, security->allowed_ciphers, security_level);
5120
5121 security->replay_counters_number = 0;
5122
5123 if (!batch_mode) {
5124 err = ipw2100_disable_adapter(priv);
5125 if (err)
5126 return err;
5127 }
5128
5129 err = ipw2100_hw_send_command(priv, &cmd);
5130
5131 if (!batch_mode)
5132 ipw2100_enable_adapter(priv);
5133
5134 return err;
5135}
5136
5137static int ipw2100_set_tx_power(struct ipw2100_priv *priv,
5138 u32 tx_power)
5139{
5140 struct host_command cmd = {
5141 .host_command = TX_POWER_INDEX,
5142 .host_command_sequence = 0,
5143 .host_command_length = 4
5144 };
5145 int err = 0;
5146
5147 cmd.host_command_parameters[0] = tx_power;
5148
5149 if (priv->ieee->iw_mode == IW_MODE_ADHOC)
5150 err = ipw2100_hw_send_command(priv, &cmd);
5151 if (!err)
5152 priv->tx_power = tx_power;
5153
5154 return 0;
5155}
5156
5157static int ipw2100_set_ibss_beacon_interval(struct ipw2100_priv *priv,
5158 u32 interval, int batch_mode)
5159{
5160 struct host_command cmd = {
5161 .host_command = BEACON_INTERVAL,
5162 .host_command_sequence = 0,
5163 .host_command_length = 4
5164 };
5165 int err;
5166
5167 cmd.host_command_parameters[0] = interval;
5168
5169 IPW_DEBUG_INFO("enter\n");
5170
5171 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5172 if (!batch_mode) {
5173 err = ipw2100_disable_adapter(priv);
5174 if (err)
5175 return err;
5176 }
5177
5178 ipw2100_hw_send_command(priv, &cmd);
5179
5180 if (!batch_mode) {
5181 err = ipw2100_enable_adapter(priv);
5182 if (err)
5183 return err;
5184 }
5185 }
5186
5187 IPW_DEBUG_INFO("exit\n");
5188
5189 return 0;
5190}
5191
5192
5193void ipw2100_queues_initialize(struct ipw2100_priv *priv)
5194{
5195 ipw2100_tx_initialize(priv);
5196 ipw2100_rx_initialize(priv);
5197 ipw2100_msg_initialize(priv);
5198}
5199
5200void ipw2100_queues_free(struct ipw2100_priv *priv)
5201{
5202 ipw2100_tx_free(priv);
5203 ipw2100_rx_free(priv);
5204 ipw2100_msg_free(priv);
5205}
5206
5207int ipw2100_queues_allocate(struct ipw2100_priv *priv)
5208{
5209 if (ipw2100_tx_allocate(priv) ||
5210 ipw2100_rx_allocate(priv) ||
5211 ipw2100_msg_allocate(priv))
5212 goto fail;
5213
5214 return 0;
5215
5216 fail:
5217 ipw2100_tx_free(priv);
5218 ipw2100_rx_free(priv);
5219 ipw2100_msg_free(priv);
5220 return -ENOMEM;
5221}
5222
5223#define IPW_PRIVACY_CAPABLE 0x0008
5224
5225static int ipw2100_set_wep_flags(struct ipw2100_priv *priv, u32 flags,
5226 int batch_mode)
5227{
5228 struct host_command cmd = {
5229 .host_command = WEP_FLAGS,
5230 .host_command_sequence = 0,
5231 .host_command_length = 4
5232 };
5233 int err;
5234
5235 cmd.host_command_parameters[0] = flags;
5236
5237 IPW_DEBUG_HC("WEP_FLAGS: flags = 0x%08X\n", flags);
5238
5239 if (!batch_mode) {
5240 err = ipw2100_disable_adapter(priv);
5241 if (err) {
5242 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
5243 priv->net_dev->name, err);
5244 return err;
5245 }
5246 }
5247
5248 /* send cmd to firmware */
5249 err = ipw2100_hw_send_command(priv, &cmd);
5250
5251 if (!batch_mode)
5252 ipw2100_enable_adapter(priv);
5253
5254 return err;
5255}
5256
5257struct ipw2100_wep_key {
5258 u8 idx;
5259 u8 len;
5260 u8 key[13];
5261};
5262
5263/* Macros to ease up priting WEP keys */
5264#define WEP_FMT_64 "%02X%02X%02X%02X-%02X"
5265#define WEP_FMT_128 "%02X%02X%02X%02X-%02X%02X%02X%02X-%02X%02X%02X"
5266#define WEP_STR_64(x) x[0],x[1],x[2],x[3],x[4]
5267#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]
5268
5269
5270/**
5271 * Set a the wep key
5272 *
5273 * @priv: struct to work on
5274 * @idx: index of the key we want to set
5275 * @key: ptr to the key data to set
5276 * @len: length of the buffer at @key
5277 * @batch_mode: FIXME perform the operation in batch mode, not
5278 * disabling the device.
5279 *
5280 * @returns 0 if OK, < 0 errno code on error.
5281 *
5282 * Fill out a command structure with the new wep key, length an
5283 * index and send it down the wire.
5284 */
5285static int ipw2100_set_key(struct ipw2100_priv *priv,
5286 int idx, char *key, int len, int batch_mode)
5287{
5288 int keylen = len ? (len <= 5 ? 5 : 13) : 0;
5289 struct host_command cmd = {
5290 .host_command = WEP_KEY_INFO,
5291 .host_command_sequence = 0,
5292 .host_command_length = sizeof(struct ipw2100_wep_key),
5293 };
5294 struct ipw2100_wep_key *wep_key = (void*)cmd.host_command_parameters;
5295 int err;
5296
5297 IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n",
5298 idx, keylen, len);
5299
5300 /* NOTE: We don't check cached values in case the firmware was reset
5301 * or some other problem is occuring. If the user is setting the key,
5302 * then we push the change */
5303
5304 wep_key->idx = idx;
5305 wep_key->len = keylen;
5306
5307 if (keylen) {
5308 memcpy(wep_key->key, key, len);
5309 memset(wep_key->key + len, 0, keylen - len);
5310 }
5311
5312 /* Will be optimized out on debug not being configured in */
5313 if (keylen == 0)
5314 IPW_DEBUG_WEP("%s: Clearing key %d\n",
5315 priv->net_dev->name, wep_key->idx);
5316 else if (keylen == 5)
5317 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_64 "\n",
5318 priv->net_dev->name, wep_key->idx, wep_key->len,
5319 WEP_STR_64(wep_key->key));
5320 else
5321 IPW_DEBUG_WEP("%s: idx: %d, len: %d key: " WEP_FMT_128
5322 "\n",
5323 priv->net_dev->name, wep_key->idx, wep_key->len,
5324 WEP_STR_128(wep_key->key));
5325
5326 if (!batch_mode) {
5327 err = ipw2100_disable_adapter(priv);
5328 /* FIXME: IPG: shouldn't this prink be in _disable_adapter()? */
5329 if (err) {
5330 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
5331 priv->net_dev->name, err);
5332 return err;
5333 }
5334 }
5335
5336 /* send cmd to firmware */
5337 err = ipw2100_hw_send_command(priv, &cmd);
5338
5339 if (!batch_mode) {
5340 int err2 = ipw2100_enable_adapter(priv);
5341 if (err == 0)
5342 err = err2;
5343 }
5344 return err;
5345}
5346
5347static int ipw2100_set_key_index(struct ipw2100_priv *priv,
5348 int idx, int batch_mode)
5349{
5350 struct host_command cmd = {
5351 .host_command = WEP_KEY_INDEX,
5352 .host_command_sequence = 0,
5353 .host_command_length = 4,
5354 .host_command_parameters = { idx },
5355 };
5356 int err;
5357
5358 IPW_DEBUG_HC("WEP_KEY_INDEX: index = %d\n", idx);
5359
5360 if (idx < 0 || idx > 3)
5361 return -EINVAL;
5362
5363 if (!batch_mode) {
5364 err = ipw2100_disable_adapter(priv);
5365 if (err) {
5366 printk(KERN_ERR DRV_NAME ": %s: Could not disable adapter %d\n",
5367 priv->net_dev->name, err);
5368 return err;
5369 }
5370 }
5371
5372 /* send cmd to firmware */
5373 err = ipw2100_hw_send_command(priv, &cmd);
5374
5375 if (!batch_mode)
5376 ipw2100_enable_adapter(priv);
5377
5378 return err;
5379}
5380
5381
5382static int ipw2100_configure_security(struct ipw2100_priv *priv,
5383 int batch_mode)
5384{
5385 int i, err, auth_mode, sec_level, use_group;
5386
5387 if (!(priv->status & STATUS_RUNNING))
5388 return 0;
5389
5390 if (!batch_mode) {
5391 err = ipw2100_disable_adapter(priv);
5392 if (err)
5393 return err;
5394 }
5395
5396 if (!priv->sec.enabled) {
5397 err = ipw2100_set_security_information(
5398 priv, IPW_AUTH_OPEN, SEC_LEVEL_0, 0, 1);
5399 } else {
5400 auth_mode = IPW_AUTH_OPEN;
5401 if ((priv->sec.flags & SEC_AUTH_MODE) &&
5402 (priv->sec.auth_mode == WLAN_AUTH_SHARED_KEY))
5403 auth_mode = IPW_AUTH_SHARED;
5404
5405 sec_level = SEC_LEVEL_0;
5406 if (priv->sec.flags & SEC_LEVEL)
5407 sec_level = priv->sec.level;
5408
5409 use_group = 0;
5410 if (priv->sec.flags & SEC_UNICAST_GROUP)
5411 use_group = priv->sec.unicast_uses_group;
5412
5413 err = ipw2100_set_security_information(
5414 priv, auth_mode, sec_level, use_group, 1);
5415 }
5416
5417 if (err)
5418 goto exit;
5419
5420 if (priv->sec.enabled) {
5421 for (i = 0; i < 4; i++) {
5422 if (!(priv->sec.flags & (1 << i))) {
5423 memset(priv->sec.keys[i], 0, WEP_KEY_LEN);
5424 priv->sec.key_sizes[i] = 0;
5425 } else {
5426 err = ipw2100_set_key(priv, i,
5427 priv->sec.keys[i],
5428 priv->sec.key_sizes[i],
5429 1);
5430 if (err)
5431 goto exit;
5432 }
5433 }
5434
5435 ipw2100_set_key_index(priv, priv->ieee->tx_keyidx, 1);
5436 }
5437
5438 /* Always enable privacy so the Host can filter WEP packets if
5439 * encrypted data is sent up */
5440 err = ipw2100_set_wep_flags(
5441 priv, priv->sec.enabled ? IPW_PRIVACY_CAPABLE : 0, 1);
5442 if (err)
5443 goto exit;
5444
5445 priv->status &= ~STATUS_SECURITY_UPDATED;
5446
5447 exit:
5448 if (!batch_mode)
5449 ipw2100_enable_adapter(priv);
5450
5451 return err;
5452}
5453
5454static void ipw2100_security_work(struct ipw2100_priv *priv)
5455{
5456 /* If we happen to have reconnected before we get a chance to
5457 * process this, then update the security settings--which causes
5458 * a disassociation to occur */
5459 if (!(priv->status & STATUS_ASSOCIATED) &&
5460 priv->status & STATUS_SECURITY_UPDATED)
5461 ipw2100_configure_security(priv, 0);
5462}
5463
5464static void shim__set_security(struct net_device *dev,
5465 struct ieee80211_security *sec)
5466{
5467 struct ipw2100_priv *priv = ieee80211_priv(dev);
5468 int i, force_update = 0;
5469
5470 down(&priv->action_sem);
5471 if (!(priv->status & STATUS_INITIALIZED))
5472 goto done;
5473
5474 for (i = 0; i < 4; i++) {
5475 if (sec->flags & (1 << i)) {
5476 priv->sec.key_sizes[i] = sec->key_sizes[i];
5477 if (sec->key_sizes[i] == 0)
5478 priv->sec.flags &= ~(1 << i);
5479 else
5480 memcpy(priv->sec.keys[i], sec->keys[i],
5481 sec->key_sizes[i]);
5482 priv->sec.flags |= (1 << i);
5483 priv->status |= STATUS_SECURITY_UPDATED;
5484 }
5485 }
5486
5487 if ((sec->flags & SEC_ACTIVE_KEY) &&
5488 priv->sec.active_key != sec->active_key) {
5489 if (sec->active_key <= 3) {
5490 priv->sec.active_key = sec->active_key;
5491 priv->sec.flags |= SEC_ACTIVE_KEY;
5492 } else
5493 priv->sec.flags &= ~SEC_ACTIVE_KEY;
5494
5495 priv->status |= STATUS_SECURITY_UPDATED;
5496 }
5497
5498 if ((sec->flags & SEC_AUTH_MODE) &&
5499 (priv->sec.auth_mode != sec->auth_mode)) {
5500 priv->sec.auth_mode = sec->auth_mode;
5501 priv->sec.flags |= SEC_AUTH_MODE;
5502 priv->status |= STATUS_SECURITY_UPDATED;
5503 }
5504
5505 if (sec->flags & SEC_ENABLED &&
5506 priv->sec.enabled != sec->enabled) {
5507 priv->sec.flags |= SEC_ENABLED;
5508 priv->sec.enabled = sec->enabled;
5509 priv->status |= STATUS_SECURITY_UPDATED;
5510 force_update = 1;
5511 }
5512
5513 if (sec->flags & SEC_LEVEL &&
5514 priv->sec.level != sec->level) {
5515 priv->sec.level = sec->level;
5516 priv->sec.flags |= SEC_LEVEL;
5517 priv->status |= STATUS_SECURITY_UPDATED;
5518 }
5519
5520 IPW_DEBUG_WEP("Security flags: %c %c%c%c%c %c%c%c%c\n",
5521 priv->sec.flags & (1<<8) ? '1' : '0',
5522 priv->sec.flags & (1<<7) ? '1' : '0',
5523 priv->sec.flags & (1<<6) ? '1' : '0',
5524 priv->sec.flags & (1<<5) ? '1' : '0',
5525 priv->sec.flags & (1<<4) ? '1' : '0',
5526 priv->sec.flags & (1<<3) ? '1' : '0',
5527 priv->sec.flags & (1<<2) ? '1' : '0',
5528 priv->sec.flags & (1<<1) ? '1' : '0',
5529 priv->sec.flags & (1<<0) ? '1' : '0');
5530
5531/* As a temporary work around to enable WPA until we figure out why
5532 * wpa_supplicant toggles the security capability of the driver, which
5533 * forces a disassocation with force_update...
5534 *
5535 * if (force_update || !(priv->status & STATUS_ASSOCIATED))*/
5536 if (!(priv->status & (STATUS_ASSOCIATED | STATUS_ASSOCIATING)))
5537 ipw2100_configure_security(priv, 0);
5538done:
5539 up(&priv->action_sem);
5540}
5541
5542static int ipw2100_adapter_setup(struct ipw2100_priv *priv)
5543{
5544 int err;
5545 int batch_mode = 1;
5546 u8 *bssid;
5547
5548 IPW_DEBUG_INFO("enter\n");
5549
5550 err = ipw2100_disable_adapter(priv);
5551 if (err)
5552 return err;
5553#ifdef CONFIG_IPW2100_MONITOR
5554 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
5555 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5556 if (err)
5557 return err;
5558
5559 IPW_DEBUG_INFO("exit\n");
5560
5561 return 0;
5562 }
5563#endif /* CONFIG_IPW2100_MONITOR */
5564
5565 err = ipw2100_read_mac_address(priv);
5566 if (err)
5567 return -EIO;
5568
5569 err = ipw2100_set_mac_address(priv, batch_mode);
5570 if (err)
5571 return err;
5572
5573 err = ipw2100_set_port_type(priv, priv->ieee->iw_mode, batch_mode);
5574 if (err)
5575 return err;
5576
5577 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5578 err = ipw2100_set_channel(priv, priv->channel, batch_mode);
5579 if (err)
5580 return err;
5581 }
5582
5583 err = ipw2100_system_config(priv, batch_mode);
5584 if (err)
5585 return err;
5586
5587 err = ipw2100_set_tx_rates(priv, priv->tx_rates, batch_mode);
5588 if (err)
5589 return err;
5590
5591 /* Default to power mode OFF */
5592 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
5593 if (err)
5594 return err;
5595
5596 err = ipw2100_set_rts_threshold(priv, priv->rts_threshold);
5597 if (err)
5598 return err;
5599
5600 if (priv->config & CFG_STATIC_BSSID)
5601 bssid = priv->bssid;
5602 else
5603 bssid = NULL;
5604 err = ipw2100_set_mandatory_bssid(priv, bssid, batch_mode);
5605 if (err)
5606 return err;
5607
5608 if (priv->config & CFG_STATIC_ESSID)
5609 err = ipw2100_set_essid(priv, priv->essid, priv->essid_len,
5610 batch_mode);
5611 else
5612 err = ipw2100_set_essid(priv, NULL, 0, batch_mode);
5613 if (err)
5614 return err;
5615
5616 err = ipw2100_configure_security(priv, batch_mode);
5617 if (err)
5618 return err;
5619
5620 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
5621 err = ipw2100_set_ibss_beacon_interval(
5622 priv, priv->beacon_interval, batch_mode);
5623 if (err)
5624 return err;
5625
5626 err = ipw2100_set_tx_power(priv, priv->tx_power);
5627 if (err)
5628 return err;
5629 }
5630
5631 /*
5632 err = ipw2100_set_fragmentation_threshold(
5633 priv, priv->frag_threshold, batch_mode);
5634 if (err)
5635 return err;
5636 */
5637
5638 IPW_DEBUG_INFO("exit\n");
5639
5640 return 0;
5641}
5642
5643
5644/*************************************************************************
5645 *
5646 * EXTERNALLY CALLED METHODS
5647 *
5648 *************************************************************************/
5649
5650/* This method is called by the network layer -- not to be confused with
5651 * ipw2100_set_mac_address() declared above called by this driver (and this
5652 * method as well) to talk to the firmware */
5653static int ipw2100_set_address(struct net_device *dev, void *p)
5654{
5655 struct ipw2100_priv *priv = ieee80211_priv(dev);
5656 struct sockaddr *addr = p;
5657 int err = 0;
5658
5659 if (!is_valid_ether_addr(addr->sa_data))
5660 return -EADDRNOTAVAIL;
5661
5662 down(&priv->action_sem);
5663
5664 priv->config |= CFG_CUSTOM_MAC;
5665 memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
5666
5667 err = ipw2100_set_mac_address(priv, 0);
5668 if (err)
5669 goto done;
5670
5671 priv->reset_backoff = 0;
5672 up(&priv->action_sem);
5673 ipw2100_reset_adapter(priv);
5674 return 0;
5675
5676 done:
5677 up(&priv->action_sem);
5678 return err;
5679}
5680
5681static int ipw2100_open(struct net_device *dev)
5682{
5683 struct ipw2100_priv *priv = ieee80211_priv(dev);
5684 unsigned long flags;
5685 IPW_DEBUG_INFO("dev->open\n");
5686
5687 spin_lock_irqsave(&priv->low_lock, flags);
5688 if (priv->status & STATUS_ASSOCIATED) {
5689 netif_carrier_on(dev);
5690 netif_start_queue(dev);
5691 }
5692 spin_unlock_irqrestore(&priv->low_lock, flags);
5693
5694 return 0;
5695}
5696
5697static int ipw2100_close(struct net_device *dev)
5698{
5699 struct ipw2100_priv *priv = ieee80211_priv(dev);
5700 unsigned long flags;
5701 struct list_head *element;
5702 struct ipw2100_tx_packet *packet;
5703
5704 IPW_DEBUG_INFO("enter\n");
5705
5706 spin_lock_irqsave(&priv->low_lock, flags);
5707
5708 if (priv->status & STATUS_ASSOCIATED)
5709 netif_carrier_off(dev);
5710 netif_stop_queue(dev);
5711
5712 /* Flush the TX queue ... */
5713 while (!list_empty(&priv->tx_pend_list)) {
5714 element = priv->tx_pend_list.next;
5715 packet = list_entry(element, struct ipw2100_tx_packet, list);
5716
5717 list_del(element);
5718 DEC_STAT(&priv->tx_pend_stat);
5719
5720 ieee80211_txb_free(packet->info.d_struct.txb);
5721 packet->info.d_struct.txb = NULL;
5722
5723 list_add_tail(element, &priv->tx_free_list);
5724 INC_STAT(&priv->tx_free_stat);
5725 }
5726 spin_unlock_irqrestore(&priv->low_lock, flags);
5727
5728 IPW_DEBUG_INFO("exit\n");
5729
5730 return 0;
5731}
5732
5733
5734
5735/*
5736 * TODO: Fix this function... its just wrong
5737 */
5738static void ipw2100_tx_timeout(struct net_device *dev)
5739{
5740 struct ipw2100_priv *priv = ieee80211_priv(dev);
5741
5742 priv->ieee->stats.tx_errors++;
5743
5744#ifdef CONFIG_IPW2100_MONITOR
5745 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
5746 return;
5747#endif
5748
5749 IPW_DEBUG_INFO("%s: TX timed out. Scheduling firmware restart.\n",
5750 dev->name);
5751 schedule_reset(priv);
5752}
5753
5754
5755/*
5756 * TODO: reimplement it so that it reads statistics
5757 * from the adapter using ordinal tables
5758 * instead of/in addition to collecting them
5759 * in the driver
5760 */
5761static struct net_device_stats *ipw2100_stats(struct net_device *dev)
5762{
5763 struct ipw2100_priv *priv = ieee80211_priv(dev);
5764
5765 return &priv->ieee->stats;
5766}
5767
5768/* Support for wpa_supplicant. Will be replaced with WEXT once
5769 * they get WPA support. */
5770#ifdef CONFIG_IEEE80211_WPA
5771
5772/* following definitions must match definitions in driver_ipw2100.c */
5773
5774#define IPW2100_IOCTL_WPA_SUPPLICANT SIOCIWFIRSTPRIV+30
5775
5776#define IPW2100_CMD_SET_WPA_PARAM 1
5777#define IPW2100_CMD_SET_WPA_IE 2
5778#define IPW2100_CMD_SET_ENCRYPTION 3
5779#define IPW2100_CMD_MLME 4
5780
5781#define IPW2100_PARAM_WPA_ENABLED 1
5782#define IPW2100_PARAM_TKIP_COUNTERMEASURES 2
5783#define IPW2100_PARAM_DROP_UNENCRYPTED 3
5784#define IPW2100_PARAM_PRIVACY_INVOKED 4
5785#define IPW2100_PARAM_AUTH_ALGS 5
5786#define IPW2100_PARAM_IEEE_802_1X 6
5787
5788#define IPW2100_MLME_STA_DEAUTH 1
5789#define IPW2100_MLME_STA_DISASSOC 2
5790
5791#define IPW2100_CRYPT_ERR_UNKNOWN_ALG 2
5792#define IPW2100_CRYPT_ERR_UNKNOWN_ADDR 3
5793#define IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED 4
5794#define IPW2100_CRYPT_ERR_KEY_SET_FAILED 5
5795#define IPW2100_CRYPT_ERR_TX_KEY_SET_FAILED 6
5796#define IPW2100_CRYPT_ERR_CARD_CONF_FAILED 7
5797
5798#define IPW2100_CRYPT_ALG_NAME_LEN 16
5799
5800struct ipw2100_param {
5801 u32 cmd;
5802 u8 sta_addr[ETH_ALEN];
5803 union {
5804 struct {
5805 u8 name;
5806 u32 value;
5807 } wpa_param;
5808 struct {
5809 u32 len;
5810 u8 *data;
5811 } wpa_ie;
5812 struct{
5813 int command;
5814 int reason_code;
5815 } mlme;
5816 struct {
5817 u8 alg[IPW2100_CRYPT_ALG_NAME_LEN];
5818 u8 set_tx;
5819 u32 err;
5820 u8 idx;
5821 u8 seq[8]; /* sequence counter (set: RX, get: TX) */
5822 u16 key_len;
5823 u8 key[0];
5824 } crypt;
5825
5826 } u;
5827};
5828
5829/* end of driver_ipw2100.c code */
5830
5831static int ipw2100_wpa_enable(struct ipw2100_priv *priv, int value){
5832
5833 struct ieee80211_device *ieee = priv->ieee;
5834 struct ieee80211_security sec = {
5835 .flags = SEC_LEVEL | SEC_ENABLED,
5836 };
5837 int ret = 0;
5838
5839 ieee->wpa_enabled = value;
5840
5841 if (value){
5842 sec.level = SEC_LEVEL_3;
5843 sec.enabled = 1;
5844 } else {
5845 sec.level = SEC_LEVEL_0;
5846 sec.enabled = 0;
5847 }
5848
5849 if (ieee->set_security)
5850 ieee->set_security(ieee->dev, &sec);
5851 else
5852 ret = -EOPNOTSUPP;
5853
5854 return ret;
5855}
5856
5857#define AUTH_ALG_OPEN_SYSTEM 0x1
5858#define AUTH_ALG_SHARED_KEY 0x2
5859
5860static int ipw2100_wpa_set_auth_algs(struct ipw2100_priv *priv, int value){
5861
5862 struct ieee80211_device *ieee = priv->ieee;
5863 struct ieee80211_security sec = {
5864 .flags = SEC_AUTH_MODE,
5865 };
5866 int ret = 0;
5867
5868 if (value & AUTH_ALG_SHARED_KEY){
5869 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
5870 ieee->open_wep = 0;
5871 } else {
5872 sec.auth_mode = WLAN_AUTH_OPEN;
5873 ieee->open_wep = 1;
5874 }
5875
5876 if (ieee->set_security)
5877 ieee->set_security(ieee->dev, &sec);
5878 else
5879 ret = -EOPNOTSUPP;
5880
5881 return ret;
5882}
5883
5884
5885static int ipw2100_wpa_set_param(struct net_device *dev, u8 name, u32 value){
5886
5887 struct ipw2100_priv *priv = ieee80211_priv(dev);
5888 int ret=0;
5889
5890 switch(name){
5891 case IPW2100_PARAM_WPA_ENABLED:
5892 ret = ipw2100_wpa_enable(priv, value);
5893 break;
5894
5895 case IPW2100_PARAM_TKIP_COUNTERMEASURES:
5896 priv->ieee->tkip_countermeasures=value;
5897 break;
5898
5899 case IPW2100_PARAM_DROP_UNENCRYPTED:
5900 priv->ieee->drop_unencrypted=value;
5901 break;
5902
5903 case IPW2100_PARAM_PRIVACY_INVOKED:
5904 priv->ieee->privacy_invoked=value;
5905 break;
5906
5907 case IPW2100_PARAM_AUTH_ALGS:
5908 ret = ipw2100_wpa_set_auth_algs(priv, value);
5909 break;
5910
5911 case IPW2100_PARAM_IEEE_802_1X:
5912 priv->ieee->ieee802_1x=value;
5913 break;
5914
5915 default:
5916 printk(KERN_ERR DRV_NAME ": %s: Unknown WPA param: %d\n",
5917 dev->name, name);
5918 ret = -EOPNOTSUPP;
5919 }
5920
5921 return ret;
5922}
5923
5924static int ipw2100_wpa_mlme(struct net_device *dev, int command, int reason){
5925
5926 struct ipw2100_priv *priv = ieee80211_priv(dev);
5927 int ret=0;
5928
5929 switch(command){
5930 case IPW2100_MLME_STA_DEAUTH:
5931 // silently ignore
5932 break;
5933
5934 case IPW2100_MLME_STA_DISASSOC:
5935 ipw2100_disassociate_bssid(priv);
5936 break;
5937
5938 default:
5939 printk(KERN_ERR DRV_NAME ": %s: Unknown MLME request: %d\n",
5940 dev->name, command);
5941 ret = -EOPNOTSUPP;
5942 }
5943
5944 return ret;
5945}
5946
5947
5948void ipw2100_wpa_assoc_frame(struct ipw2100_priv *priv,
5949 char *wpa_ie, int wpa_ie_len){
5950
5951 struct ipw2100_wpa_assoc_frame frame;
5952
5953 frame.fixed_ie_mask = 0;
5954
5955 /* copy WPA IE */
5956 memcpy(frame.var_ie, wpa_ie, wpa_ie_len);
5957 frame.var_ie_len = wpa_ie_len;
5958
5959 /* make sure WPA is enabled */
5960 ipw2100_wpa_enable(priv, 1);
5961 ipw2100_set_wpa_ie(priv, &frame, 0);
5962}
5963
5964
5965static int ipw2100_wpa_set_wpa_ie(struct net_device *dev,
5966 struct ipw2100_param *param, int plen){
5967
5968 struct ipw2100_priv *priv = ieee80211_priv(dev);
5969 struct ieee80211_device *ieee = priv->ieee;
5970 u8 *buf;
5971
5972 if (! ieee->wpa_enabled)
5973 return -EOPNOTSUPP;
5974
5975 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
5976 (param->u.wpa_ie.len &&
5977 param->u.wpa_ie.data==NULL))
5978 return -EINVAL;
5979
5980 if (param->u.wpa_ie.len){
5981 buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
5982 if (buf == NULL)
5983 return -ENOMEM;
5984
5985 memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
5986
5987 kfree(ieee->wpa_ie);
5988 ieee->wpa_ie = buf;
5989 ieee->wpa_ie_len = param->u.wpa_ie.len;
5990
5991 } else {
5992 kfree(ieee->wpa_ie);
5993 ieee->wpa_ie = NULL;
5994 ieee->wpa_ie_len = 0;
5995 }
5996
5997 ipw2100_wpa_assoc_frame(priv, ieee->wpa_ie, ieee->wpa_ie_len);
5998
5999 return 0;
6000}
6001
6002/* implementation borrowed from hostap driver */
6003
6004static int ipw2100_wpa_set_encryption(struct net_device *dev,
6005 struct ipw2100_param *param, int param_len){
6006
6007 int ret = 0;
6008 struct ipw2100_priv *priv = ieee80211_priv(dev);
6009 struct ieee80211_device *ieee = priv->ieee;
6010 struct ieee80211_crypto_ops *ops;
6011 struct ieee80211_crypt_data **crypt;
6012
6013 struct ieee80211_security sec = {
6014 .flags = 0,
6015 };
6016
6017 param->u.crypt.err = 0;
6018 param->u.crypt.alg[IPW2100_CRYPT_ALG_NAME_LEN - 1] = '\0';
6019
6020 if (param_len !=
6021 (int) ((char *) param->u.crypt.key - (char *) param) +
6022 param->u.crypt.key_len){
6023 IPW_DEBUG_INFO("Len mismatch %d, %d\n", param_len, param->u.crypt.key_len);
6024 return -EINVAL;
6025 }
6026 if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
6027 param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
6028 param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
6029 if (param->u.crypt.idx >= WEP_KEYS)
6030 return -EINVAL;
6031 crypt = &ieee->crypt[param->u.crypt.idx];
6032 } else {
6033 return -EINVAL;
6034 }
6035
6036 if (strcmp(param->u.crypt.alg, "none") == 0) {
6037 if (crypt){
6038 sec.enabled = 0;
6039 sec.level = SEC_LEVEL_0;
6040 sec.flags |= SEC_ENABLED | SEC_LEVEL;
6041 ieee80211_crypt_delayed_deinit(ieee, crypt);
6042 }
6043 goto done;
6044 }
6045 sec.enabled = 1;
6046 sec.flags |= SEC_ENABLED;
6047
6048 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6049 if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
6050 request_module("ieee80211_crypt_wep");
6051 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6052 } else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
6053 request_module("ieee80211_crypt_tkip");
6054 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6055 } else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
6056 request_module("ieee80211_crypt_ccmp");
6057 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
6058 }
6059 if (ops == NULL) {
6060 IPW_DEBUG_INFO("%s: unknown crypto alg '%s'\n",
6061 dev->name, param->u.crypt.alg);
6062 param->u.crypt.err = IPW2100_CRYPT_ERR_UNKNOWN_ALG;
6063 ret = -EINVAL;
6064 goto done;
6065 }
6066
6067 if (*crypt == NULL || (*crypt)->ops != ops) {
6068 struct ieee80211_crypt_data *new_crypt;
6069
6070 ieee80211_crypt_delayed_deinit(ieee, crypt);
6071
6072 new_crypt = (struct ieee80211_crypt_data *)
6073 kmalloc(sizeof(struct ieee80211_crypt_data), GFP_KERNEL);
6074 if (new_crypt == NULL) {
6075 ret = -ENOMEM;
6076 goto done;
6077 }
6078 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
6079 new_crypt->ops = ops;
6080 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
6081 new_crypt->priv = new_crypt->ops->init(param->u.crypt.idx);
6082
6083 if (new_crypt->priv == NULL) {
6084 kfree(new_crypt);
6085 param->u.crypt.err =
6086 IPW2100_CRYPT_ERR_CRYPT_INIT_FAILED;
6087 ret = -EINVAL;
6088 goto done;
6089 }
6090
6091 *crypt = new_crypt;
6092 }
6093
6094 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
6095 (*crypt)->ops->set_key(param->u.crypt.key,
6096 param->u.crypt.key_len, param->u.crypt.seq,
6097 (*crypt)->priv) < 0) {
6098 IPW_DEBUG_INFO("%s: key setting failed\n",
6099 dev->name);
6100 param->u.crypt.err = IPW2100_CRYPT_ERR_KEY_SET_FAILED;
6101 ret = -EINVAL;
6102 goto done;
6103 }
6104
6105 if (param->u.crypt.set_tx){
6106 ieee->tx_keyidx = param->u.crypt.idx;
6107 sec.active_key = param->u.crypt.idx;
6108 sec.flags |= SEC_ACTIVE_KEY;
6109 }
6110
6111 if (ops->name != NULL){
6112
6113 if (strcmp(ops->name, "WEP") == 0) {
6114 memcpy(sec.keys[param->u.crypt.idx], param->u.crypt.key, param->u.crypt.key_len);
6115 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
6116 sec.flags |= (1 << param->u.crypt.idx);
6117 sec.flags |= SEC_LEVEL;
6118 sec.level = SEC_LEVEL_1;
6119 } else if (strcmp(ops->name, "TKIP") == 0) {
6120 sec.flags |= SEC_LEVEL;
6121 sec.level = SEC_LEVEL_2;
6122 } else if (strcmp(ops->name, "CCMP") == 0) {
6123 sec.flags |= SEC_LEVEL;
6124 sec.level = SEC_LEVEL_3;
6125 }
6126 }
6127 done:
6128 if (ieee->set_security)
6129 ieee->set_security(ieee->dev, &sec);
6130
6131 /* Do not reset port if card is in Managed mode since resetting will
6132 * generate new IEEE 802.11 authentication which may end up in looping
6133 * with IEEE 802.1X. If your hardware requires a reset after WEP
6134 * configuration (for example... Prism2), implement the reset_port in
6135 * the callbacks structures used to initialize the 802.11 stack. */
6136 if (ieee->reset_on_keychange &&
6137 ieee->iw_mode != IW_MODE_INFRA &&
6138 ieee->reset_port &&
6139 ieee->reset_port(dev)) {
6140 IPW_DEBUG_INFO("%s: reset_port failed\n", dev->name);
6141 param->u.crypt.err = IPW2100_CRYPT_ERR_CARD_CONF_FAILED;
6142 return -EINVAL;
6143 }
6144
6145 return ret;
6146}
6147
6148
6149static int ipw2100_wpa_supplicant(struct net_device *dev, struct iw_point *p){
6150
6151 struct ipw2100_param *param;
6152 int ret=0;
6153
6154 IPW_DEBUG_IOCTL("wpa_supplicant: len=%d\n", p->length);
6155
6156 if (p->length < sizeof(struct ipw2100_param) || !p->pointer)
6157 return -EINVAL;
6158
6159 param = (struct ipw2100_param *)kmalloc(p->length, GFP_KERNEL);
6160 if (param == NULL)
6161 return -ENOMEM;
6162
6163 if (copy_from_user(param, p->pointer, p->length)){
6164 kfree(param);
6165 return -EFAULT;
6166 }
6167
6168 switch (param->cmd){
6169
6170 case IPW2100_CMD_SET_WPA_PARAM:
6171 ret = ipw2100_wpa_set_param(dev, param->u.wpa_param.name,
6172 param->u.wpa_param.value);
6173 break;
6174
6175 case IPW2100_CMD_SET_WPA_IE:
6176 ret = ipw2100_wpa_set_wpa_ie(dev, param, p->length);
6177 break;
6178
6179 case IPW2100_CMD_SET_ENCRYPTION:
6180 ret = ipw2100_wpa_set_encryption(dev, param, p->length);
6181 break;
6182
6183 case IPW2100_CMD_MLME:
6184 ret = ipw2100_wpa_mlme(dev, param->u.mlme.command,
6185 param->u.mlme.reason_code);
6186 break;
6187
6188 default:
6189 printk(KERN_ERR DRV_NAME ": %s: Unknown WPA supplicant request: %d\n",
6190 dev->name, param->cmd);
6191 ret = -EOPNOTSUPP;
6192
6193 }
6194
6195 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
6196 ret = -EFAULT;
6197
6198 kfree(param);
6199 return ret;
6200}
6201#endif /* CONFIG_IEEE80211_WPA */
6202
6203static int ipw2100_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
6204{
6205#ifdef CONFIG_IEEE80211_WPA
6206 struct iwreq *wrq = (struct iwreq *) rq;
6207 int ret=-1;
6208 switch (cmd){
6209 case IPW2100_IOCTL_WPA_SUPPLICANT:
6210 ret = ipw2100_wpa_supplicant(dev, &wrq->u.data);
6211 return ret;
6212
6213 default:
6214 return -EOPNOTSUPP;
6215 }
6216
6217#endif /* CONFIG_IEEE80211_WPA */
6218
6219 return -EOPNOTSUPP;
6220}
6221
6222
6223static void ipw_ethtool_get_drvinfo(struct net_device *dev,
6224 struct ethtool_drvinfo *info)
6225{
6226 struct ipw2100_priv *priv = ieee80211_priv(dev);
6227 char fw_ver[64], ucode_ver[64];
6228
6229 strcpy(info->driver, DRV_NAME);
6230 strcpy(info->version, DRV_VERSION);
6231
6232 ipw2100_get_fwversion(priv, fw_ver, sizeof(fw_ver));
6233 ipw2100_get_ucodeversion(priv, ucode_ver, sizeof(ucode_ver));
6234
6235 snprintf(info->fw_version, sizeof(info->fw_version), "%s:%d:%s",
6236 fw_ver, priv->eeprom_version, ucode_ver);
6237
6238 strcpy(info->bus_info, pci_name(priv->pci_dev));
6239}
6240
6241static u32 ipw2100_ethtool_get_link(struct net_device *dev)
6242{
6243 struct ipw2100_priv *priv = ieee80211_priv(dev);
6244 return (priv->status & STATUS_ASSOCIATED) ? 1 : 0;
6245}
6246
6247
6248static struct ethtool_ops ipw2100_ethtool_ops = {
6249 .get_link = ipw2100_ethtool_get_link,
6250 .get_drvinfo = ipw_ethtool_get_drvinfo,
6251};
6252
6253static void ipw2100_hang_check(void *adapter)
6254{
6255 struct ipw2100_priv *priv = adapter;
6256 unsigned long flags;
6257 u32 rtc = 0xa5a5a5a5;
6258 u32 len = sizeof(rtc);
6259 int restart = 0;
6260
6261 spin_lock_irqsave(&priv->low_lock, flags);
6262
6263 if (priv->fatal_error != 0) {
6264 /* If fatal_error is set then we need to restart */
6265 IPW_DEBUG_INFO("%s: Hardware fatal error detected.\n",
6266 priv->net_dev->name);
6267
6268 restart = 1;
6269 } else if (ipw2100_get_ordinal(priv, IPW_ORD_RTC_TIME, &rtc, &len) ||
6270 (rtc == priv->last_rtc)) {
6271 /* Check if firmware is hung */
6272 IPW_DEBUG_INFO("%s: Firmware RTC stalled.\n",
6273 priv->net_dev->name);
6274
6275 restart = 1;
6276 }
6277
6278 if (restart) {
6279 /* Kill timer */
6280 priv->stop_hang_check = 1;
6281 priv->hangs++;
6282
6283 /* Restart the NIC */
6284 schedule_reset(priv);
6285 }
6286
6287 priv->last_rtc = rtc;
6288
6289 if (!priv->stop_hang_check)
6290 queue_delayed_work(priv->workqueue, &priv->hang_check, HZ / 2);
6291
6292 spin_unlock_irqrestore(&priv->low_lock, flags);
6293}
6294
6295
6296static void ipw2100_rf_kill(void *adapter)
6297{
6298 struct ipw2100_priv *priv = adapter;
6299 unsigned long flags;
6300
6301 spin_lock_irqsave(&priv->low_lock, flags);
6302
6303 if (rf_kill_active(priv)) {
6304 IPW_DEBUG_RF_KILL("RF Kill active, rescheduling GPIO check\n");
6305 if (!priv->stop_rf_kill)
6306 queue_delayed_work(priv->workqueue, &priv->rf_kill, HZ);
6307 goto exit_unlock;
6308 }
6309
6310 /* RF Kill is now disabled, so bring the device back up */
6311
6312 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6313 IPW_DEBUG_RF_KILL("HW RF Kill no longer active, restarting "
6314 "device\n");
6315 schedule_reset(priv);
6316 } else
6317 IPW_DEBUG_RF_KILL("HW RF Kill deactivated. SW RF Kill still "
6318 "enabled\n");
6319
6320 exit_unlock:
6321 spin_unlock_irqrestore(&priv->low_lock, flags);
6322}
6323
6324static void ipw2100_irq_tasklet(struct ipw2100_priv *priv);
6325
6326/* Look into using netdev destructor to shutdown ieee80211? */
6327
6328static struct net_device *ipw2100_alloc_device(
6329 struct pci_dev *pci_dev,
6330 char *base_addr,
6331 unsigned long mem_start,
6332 unsigned long mem_len)
6333{
6334 struct ipw2100_priv *priv;
6335 struct net_device *dev;
6336
6337 dev = alloc_ieee80211(sizeof(struct ipw2100_priv));
6338 if (!dev)
6339 return NULL;
6340 priv = ieee80211_priv(dev);
6341 priv->ieee = netdev_priv(dev);
6342 priv->pci_dev = pci_dev;
6343 priv->net_dev = dev;
6344
6345 priv->ieee->hard_start_xmit = ipw2100_tx;
6346 priv->ieee->set_security = shim__set_security;
6347
6348 dev->open = ipw2100_open;
6349 dev->stop = ipw2100_close;
6350 dev->init = ipw2100_net_init;
6351 dev->do_ioctl = ipw2100_ioctl;
6352 dev->get_stats = ipw2100_stats;
6353 dev->ethtool_ops = &ipw2100_ethtool_ops;
6354 dev->tx_timeout = ipw2100_tx_timeout;
6355 dev->wireless_handlers = &ipw2100_wx_handler_def;
6356 dev->get_wireless_stats = ipw2100_wx_wireless_stats;
6357 dev->set_mac_address = ipw2100_set_address;
6358 dev->watchdog_timeo = 3*HZ;
6359 dev->irq = 0;
6360
6361 dev->base_addr = (unsigned long)base_addr;
6362 dev->mem_start = mem_start;
6363 dev->mem_end = dev->mem_start + mem_len - 1;
6364
6365 /* NOTE: We don't use the wireless_handlers hook
6366 * in dev as the system will start throwing WX requests
6367 * to us before we're actually initialized and it just
6368 * ends up causing problems. So, we just handle
6369 * the WX extensions through the ipw2100_ioctl interface */
6370
6371
6372 /* memset() puts everything to 0, so we only have explicitely set
6373 * those values that need to be something else */
6374
6375 /* If power management is turned on, default to AUTO mode */
6376 priv->power_mode = IPW_POWER_AUTO;
6377
6378
6379
6380#ifdef CONFIG_IEEE80211_WPA
6381 priv->ieee->wpa_enabled = 0;
6382 priv->ieee->tkip_countermeasures = 0;
6383 priv->ieee->drop_unencrypted = 0;
6384 priv->ieee->privacy_invoked = 0;
6385 priv->ieee->ieee802_1x = 1;
6386#endif /* CONFIG_IEEE80211_WPA */
6387
6388 /* Set module parameters */
6389 switch (mode) {
6390 case 1:
6391 priv->ieee->iw_mode = IW_MODE_ADHOC;
6392 break;
6393#ifdef CONFIG_IPW2100_MONITOR
6394 case 2:
6395 priv->ieee->iw_mode = IW_MODE_MONITOR;
6396 break;
6397#endif
6398 default:
6399 case 0:
6400 priv->ieee->iw_mode = IW_MODE_INFRA;
6401 break;
6402 }
6403
6404 if (disable == 1)
6405 priv->status |= STATUS_RF_KILL_SW;
6406
6407 if (channel != 0 &&
6408 ((channel >= REG_MIN_CHANNEL) &&
6409 (channel <= REG_MAX_CHANNEL))) {
6410 priv->config |= CFG_STATIC_CHANNEL;
6411 priv->channel = channel;
6412 }
6413
6414 if (associate)
6415 priv->config |= CFG_ASSOCIATE;
6416
6417 priv->beacon_interval = DEFAULT_BEACON_INTERVAL;
6418 priv->short_retry_limit = DEFAULT_SHORT_RETRY_LIMIT;
6419 priv->long_retry_limit = DEFAULT_LONG_RETRY_LIMIT;
6420 priv->rts_threshold = DEFAULT_RTS_THRESHOLD | RTS_DISABLED;
6421 priv->frag_threshold = DEFAULT_FTS | FRAG_DISABLED;
6422 priv->tx_power = IPW_TX_POWER_DEFAULT;
6423 priv->tx_rates = DEFAULT_TX_RATES;
6424
6425 strcpy(priv->nick, "ipw2100");
6426
6427 spin_lock_init(&priv->low_lock);
6428 sema_init(&priv->action_sem, 1);
6429 sema_init(&priv->adapter_sem, 1);
6430
6431 init_waitqueue_head(&priv->wait_command_queue);
6432
6433 netif_carrier_off(dev);
6434
6435 INIT_LIST_HEAD(&priv->msg_free_list);
6436 INIT_LIST_HEAD(&priv->msg_pend_list);
6437 INIT_STAT(&priv->msg_free_stat);
6438 INIT_STAT(&priv->msg_pend_stat);
6439
6440 INIT_LIST_HEAD(&priv->tx_free_list);
6441 INIT_LIST_HEAD(&priv->tx_pend_list);
6442 INIT_STAT(&priv->tx_free_stat);
6443 INIT_STAT(&priv->tx_pend_stat);
6444
6445 INIT_LIST_HEAD(&priv->fw_pend_list);
6446 INIT_STAT(&priv->fw_pend_stat);
6447
6448
6449#ifdef CONFIG_SOFTWARE_SUSPEND2
6450 priv->workqueue = create_workqueue(DRV_NAME, 0);
6451#else
6452 priv->workqueue = create_workqueue(DRV_NAME);
6453#endif
6454 INIT_WORK(&priv->reset_work,
6455 (void (*)(void *))ipw2100_reset_adapter, priv);
6456 INIT_WORK(&priv->security_work,
6457 (void (*)(void *))ipw2100_security_work, priv);
6458 INIT_WORK(&priv->wx_event_work,
6459 (void (*)(void *))ipw2100_wx_event_work, priv);
6460 INIT_WORK(&priv->hang_check, ipw2100_hang_check, priv);
6461 INIT_WORK(&priv->rf_kill, ipw2100_rf_kill, priv);
6462
6463 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
6464 ipw2100_irq_tasklet, (unsigned long)priv);
6465
6466 /* NOTE: We do not start the deferred work for status checks yet */
6467 priv->stop_rf_kill = 1;
6468 priv->stop_hang_check = 1;
6469
6470 return dev;
6471}
6472
6473static int ipw2100_pci_init_one(struct pci_dev *pci_dev,
6474 const struct pci_device_id *ent)
6475{
6476 unsigned long mem_start, mem_len, mem_flags;
6477 char *base_addr = NULL;
6478 struct net_device *dev = NULL;
6479 struct ipw2100_priv *priv = NULL;
6480 int err = 0;
6481 int registered = 0;
6482 u32 val;
6483
6484 IPW_DEBUG_INFO("enter\n");
6485
6486 mem_start = pci_resource_start(pci_dev, 0);
6487 mem_len = pci_resource_len(pci_dev, 0);
6488 mem_flags = pci_resource_flags(pci_dev, 0);
6489
6490 if ((mem_flags & IORESOURCE_MEM) != IORESOURCE_MEM) {
6491 IPW_DEBUG_INFO("weird - resource type is not memory\n");
6492 err = -ENODEV;
6493 goto fail;
6494 }
6495
6496 base_addr = ioremap_nocache(mem_start, mem_len);
6497 if (!base_addr) {
6498 printk(KERN_WARNING DRV_NAME
6499 "Error calling ioremap_nocache.\n");
6500 err = -EIO;
6501 goto fail;
6502 }
6503
6504 /* allocate and initialize our net_device */
6505 dev = ipw2100_alloc_device(pci_dev, base_addr, mem_start, mem_len);
6506 if (!dev) {
6507 printk(KERN_WARNING DRV_NAME
6508 "Error calling ipw2100_alloc_device.\n");
6509 err = -ENOMEM;
6510 goto fail;
6511 }
6512
6513 /* set up PCI mappings for device */
6514 err = pci_enable_device(pci_dev);
6515 if (err) {
6516 printk(KERN_WARNING DRV_NAME
6517 "Error calling pci_enable_device.\n");
6518 return err;
6519 }
6520
6521 priv = ieee80211_priv(dev);
6522
6523 pci_set_master(pci_dev);
6524 pci_set_drvdata(pci_dev, priv);
6525
6526 err = pci_set_dma_mask(pci_dev, DMA_32BIT_MASK);
6527 if (err) {
6528 printk(KERN_WARNING DRV_NAME
6529 "Error calling pci_set_dma_mask.\n");
6530 pci_disable_device(pci_dev);
6531 return err;
6532 }
6533
6534 err = pci_request_regions(pci_dev, DRV_NAME);
6535 if (err) {
6536 printk(KERN_WARNING DRV_NAME
6537 "Error calling pci_request_regions.\n");
6538 pci_disable_device(pci_dev);
6539 return err;
6540 }
6541
6542 /* We disable the RETRY_TIMEOUT register (0x41) to keep
6543 * PCI Tx retries from interfering with C3 CPU state */
6544 pci_read_config_dword(pci_dev, 0x40, &val);
6545 if ((val & 0x0000ff00) != 0)
6546 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6547
6548 pci_set_power_state(pci_dev, PCI_D0);
6549
6550 if (!ipw2100_hw_is_adapter_in_system(dev)) {
6551 printk(KERN_WARNING DRV_NAME
6552 "Device not found via register read.\n");
6553 err = -ENODEV;
6554 goto fail;
6555 }
6556
6557 SET_NETDEV_DEV(dev, &pci_dev->dev);
6558
6559 /* Force interrupts to be shut off on the device */
6560 priv->status |= STATUS_INT_ENABLED;
6561 ipw2100_disable_interrupts(priv);
6562
6563 /* Allocate and initialize the Tx/Rx queues and lists */
6564 if (ipw2100_queues_allocate(priv)) {
6565 printk(KERN_WARNING DRV_NAME
6566 "Error calilng ipw2100_queues_allocate.\n");
6567 err = -ENOMEM;
6568 goto fail;
6569 }
6570 ipw2100_queues_initialize(priv);
6571
6572 err = request_irq(pci_dev->irq,
6573 ipw2100_interrupt, SA_SHIRQ,
6574 dev->name, priv);
6575 if (err) {
6576 printk(KERN_WARNING DRV_NAME
6577 "Error calling request_irq: %d.\n",
6578 pci_dev->irq);
6579 goto fail;
6580 }
6581 dev->irq = pci_dev->irq;
6582
6583 IPW_DEBUG_INFO("Attempting to register device...\n");
6584
6585 SET_MODULE_OWNER(dev);
6586
6587 printk(KERN_INFO DRV_NAME
6588 ": Detected Intel PRO/Wireless 2100 Network Connection\n");
6589
6590 /* Bring up the interface. Pre 0.46, after we registered the
6591 * network device we would call ipw2100_up. This introduced a race
6592 * condition with newer hotplug configurations (network was coming
6593 * up and making calls before the device was initialized).
6594 *
6595 * If we called ipw2100_up before we registered the device, then the
6596 * device name wasn't registered. So, we instead use the net_dev->init
6597 * member to call a function that then just turns and calls ipw2100_up.
6598 * net_dev->init is called after name allocation but before the
6599 * notifier chain is called */
6600 down(&priv->action_sem);
6601 err = register_netdev(dev);
6602 if (err) {
6603 printk(KERN_WARNING DRV_NAME
6604 "Error calling register_netdev.\n");
6605 goto fail_unlock;
6606 }
6607 registered = 1;
6608
6609 IPW_DEBUG_INFO("%s: Bound to %s\n", dev->name, pci_name(pci_dev));
6610
6611 /* perform this after register_netdev so that dev->name is set */
6612 sysfs_create_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6613 netif_carrier_off(dev);
6614
6615 /* If the RF Kill switch is disabled, go ahead and complete the
6616 * startup sequence */
6617 if (!(priv->status & STATUS_RF_KILL_MASK)) {
6618 /* Enable the adapter - sends HOST_COMPLETE */
6619 if (ipw2100_enable_adapter(priv)) {
6620 printk(KERN_WARNING DRV_NAME
6621 ": %s: failed in call to enable adapter.\n",
6622 priv->net_dev->name);
6623 ipw2100_hw_stop_adapter(priv);
6624 err = -EIO;
6625 goto fail_unlock;
6626 }
6627
6628 /* Start a scan . . . */
6629 ipw2100_set_scan_options(priv);
6630 ipw2100_start_scan(priv);
6631 }
6632
6633 IPW_DEBUG_INFO("exit\n");
6634
6635 priv->status |= STATUS_INITIALIZED;
6636
6637 up(&priv->action_sem);
6638
6639 return 0;
6640
6641 fail_unlock:
6642 up(&priv->action_sem);
6643
6644 fail:
6645 if (dev) {
6646 if (registered)
6647 unregister_netdev(dev);
6648
6649 ipw2100_hw_stop_adapter(priv);
6650
6651 ipw2100_disable_interrupts(priv);
6652
6653 if (dev->irq)
6654 free_irq(dev->irq, priv);
6655
6656 ipw2100_kill_workqueue(priv);
6657
6658 /* These are safe to call even if they weren't allocated */
6659 ipw2100_queues_free(priv);
6660 sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6661
6662 free_ieee80211(dev);
6663 pci_set_drvdata(pci_dev, NULL);
6664 }
6665
6666 if (base_addr)
6667 iounmap((char*)base_addr);
6668
6669 pci_release_regions(pci_dev);
6670 pci_disable_device(pci_dev);
6671
6672 return err;
6673}
6674
6675static void __devexit ipw2100_pci_remove_one(struct pci_dev *pci_dev)
6676{
6677 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6678 struct net_device *dev;
6679
6680 if (priv) {
6681 down(&priv->action_sem);
6682
6683 priv->status &= ~STATUS_INITIALIZED;
6684
6685 dev = priv->net_dev;
6686 sysfs_remove_group(&pci_dev->dev.kobj, &ipw2100_attribute_group);
6687
6688#ifdef CONFIG_PM
6689 if (ipw2100_firmware.version)
6690 ipw2100_release_firmware(priv, &ipw2100_firmware);
6691#endif
6692 /* Take down the hardware */
6693 ipw2100_down(priv);
6694
6695 /* Release the semaphore so that the network subsystem can
6696 * complete any needed calls into the driver... */
6697 up(&priv->action_sem);
6698
6699 /* Unregister the device first - this results in close()
6700 * being called if the device is open. If we free storage
6701 * first, then close() will crash. */
6702 unregister_netdev(dev);
6703
6704 /* ipw2100_down will ensure that there is no more pending work
6705 * in the workqueue's, so we can safely remove them now. */
6706 ipw2100_kill_workqueue(priv);
6707
6708 ipw2100_queues_free(priv);
6709
6710 /* Free potential debugging firmware snapshot */
6711 ipw2100_snapshot_free(priv);
6712
6713 if (dev->irq)
6714 free_irq(dev->irq, priv);
6715
6716 if (dev->base_addr)
6717 iounmap((unsigned char *)dev->base_addr);
6718
6719 free_ieee80211(dev);
6720 }
6721
6722 pci_release_regions(pci_dev);
6723 pci_disable_device(pci_dev);
6724
6725 IPW_DEBUG_INFO("exit\n");
6726}
6727
6728
6729#ifdef CONFIG_PM
6730#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
6731static int ipw2100_suspend(struct pci_dev *pci_dev, u32 state)
6732#else
6733static int ipw2100_suspend(struct pci_dev *pci_dev, pm_message_t state)
6734#endif
6735{
6736 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6737 struct net_device *dev = priv->net_dev;
6738
6739 IPW_DEBUG_INFO("%s: Going into suspend...\n",
6740 dev->name);
6741
6742 down(&priv->action_sem);
6743 if (priv->status & STATUS_INITIALIZED) {
6744 /* Take down the device; powers it off, etc. */
6745 ipw2100_down(priv);
6746 }
6747
6748 /* Remove the PRESENT state of the device */
6749 netif_device_detach(dev);
6750
6751 pci_save_state(pci_dev);
6752 pci_disable_device (pci_dev);
6753 pci_set_power_state(pci_dev, PCI_D3hot);
6754
6755 up(&priv->action_sem);
6756
6757 return 0;
6758}
6759
6760static int ipw2100_resume(struct pci_dev *pci_dev)
6761{
6762 struct ipw2100_priv *priv = pci_get_drvdata(pci_dev);
6763 struct net_device *dev = priv->net_dev;
6764 u32 val;
6765
6766 if (IPW2100_PM_DISABLED)
6767 return 0;
6768
6769 down(&priv->action_sem);
6770
6771 IPW_DEBUG_INFO("%s: Coming out of suspend...\n",
6772 dev->name);
6773
6774 pci_set_power_state(pci_dev, PCI_D0);
6775 pci_enable_device(pci_dev);
6776 pci_restore_state(pci_dev);
6777
6778 /*
6779 * Suspend/Resume resets the PCI configuration space, so we have to
6780 * re-disable the RETRY_TIMEOUT register (0x41) to keep PCI Tx retries
6781 * from interfering with C3 CPU state. pci_restore_state won't help
6782 * here since it only restores the first 64 bytes pci config header.
6783 */
6784 pci_read_config_dword(pci_dev, 0x40, &val);
6785 if ((val & 0x0000ff00) != 0)
6786 pci_write_config_dword(pci_dev, 0x40, val & 0xffff00ff);
6787
6788 /* Set the device back into the PRESENT state; this will also wake
6789 * the queue of needed */
6790 netif_device_attach(dev);
6791
6792 /* Bring the device back up */
6793 if (!(priv->status & STATUS_RF_KILL_SW))
6794 ipw2100_up(priv, 0);
6795
6796 up(&priv->action_sem);
6797
6798 return 0;
6799}
6800#endif
6801
6802
6803#define IPW2100_DEV_ID(x) { PCI_VENDOR_ID_INTEL, 0x1043, 0x8086, x }
6804
6805static struct pci_device_id ipw2100_pci_id_table[] __devinitdata = {
6806 IPW2100_DEV_ID(0x2520), /* IN 2100A mPCI 3A */
6807 IPW2100_DEV_ID(0x2521), /* IN 2100A mPCI 3B */
6808 IPW2100_DEV_ID(0x2524), /* IN 2100A mPCI 3B */
6809 IPW2100_DEV_ID(0x2525), /* IN 2100A mPCI 3B */
6810 IPW2100_DEV_ID(0x2526), /* IN 2100A mPCI Gen A3 */
6811 IPW2100_DEV_ID(0x2522), /* IN 2100 mPCI 3B */
6812 IPW2100_DEV_ID(0x2523), /* IN 2100 mPCI 3A */
6813 IPW2100_DEV_ID(0x2527), /* IN 2100 mPCI 3B */
6814 IPW2100_DEV_ID(0x2528), /* IN 2100 mPCI 3B */
6815 IPW2100_DEV_ID(0x2529), /* IN 2100 mPCI 3B */
6816 IPW2100_DEV_ID(0x252B), /* IN 2100 mPCI 3A */
6817 IPW2100_DEV_ID(0x252C), /* IN 2100 mPCI 3A */
6818 IPW2100_DEV_ID(0x252D), /* IN 2100 mPCI 3A */
6819
6820 IPW2100_DEV_ID(0x2550), /* IB 2100A mPCI 3B */
6821 IPW2100_DEV_ID(0x2551), /* IB 2100 mPCI 3B */
6822 IPW2100_DEV_ID(0x2553), /* IB 2100 mPCI 3B */
6823 IPW2100_DEV_ID(0x2554), /* IB 2100 mPCI 3B */
6824 IPW2100_DEV_ID(0x2555), /* IB 2100 mPCI 3B */
6825
6826 IPW2100_DEV_ID(0x2560), /* DE 2100A mPCI 3A */
6827 IPW2100_DEV_ID(0x2562), /* DE 2100A mPCI 3A */
6828 IPW2100_DEV_ID(0x2563), /* DE 2100A mPCI 3A */
6829 IPW2100_DEV_ID(0x2561), /* DE 2100 mPCI 3A */
6830 IPW2100_DEV_ID(0x2565), /* DE 2100 mPCI 3A */
6831 IPW2100_DEV_ID(0x2566), /* DE 2100 mPCI 3A */
6832 IPW2100_DEV_ID(0x2567), /* DE 2100 mPCI 3A */
6833
6834 IPW2100_DEV_ID(0x2570), /* GA 2100 mPCI 3B */
6835
6836 IPW2100_DEV_ID(0x2580), /* TO 2100A mPCI 3B */
6837 IPW2100_DEV_ID(0x2582), /* TO 2100A mPCI 3B */
6838 IPW2100_DEV_ID(0x2583), /* TO 2100A mPCI 3B */
6839 IPW2100_DEV_ID(0x2581), /* TO 2100 mPCI 3B */
6840 IPW2100_DEV_ID(0x2585), /* TO 2100 mPCI 3B */
6841 IPW2100_DEV_ID(0x2586), /* TO 2100 mPCI 3B */
6842 IPW2100_DEV_ID(0x2587), /* TO 2100 mPCI 3B */
6843
6844 IPW2100_DEV_ID(0x2590), /* SO 2100A mPCI 3B */
6845 IPW2100_DEV_ID(0x2592), /* SO 2100A mPCI 3B */
6846 IPW2100_DEV_ID(0x2591), /* SO 2100 mPCI 3B */
6847 IPW2100_DEV_ID(0x2593), /* SO 2100 mPCI 3B */
6848 IPW2100_DEV_ID(0x2596), /* SO 2100 mPCI 3B */
6849 IPW2100_DEV_ID(0x2598), /* SO 2100 mPCI 3B */
6850
6851 IPW2100_DEV_ID(0x25A0), /* HP 2100 mPCI 3B */
6852 {0,},
6853};
6854
6855MODULE_DEVICE_TABLE(pci, ipw2100_pci_id_table);
6856
6857static struct pci_driver ipw2100_pci_driver = {
6858 .name = DRV_NAME,
6859 .id_table = ipw2100_pci_id_table,
6860 .probe = ipw2100_pci_init_one,
6861 .remove = __devexit_p(ipw2100_pci_remove_one),
6862#ifdef CONFIG_PM
6863 .suspend = ipw2100_suspend,
6864 .resume = ipw2100_resume,
6865#endif
6866};
6867
6868
6869/**
6870 * Initialize the ipw2100 driver/module
6871 *
6872 * @returns 0 if ok, < 0 errno node con error.
6873 *
6874 * Note: we cannot init the /proc stuff until the PCI driver is there,
6875 * or we risk an unlikely race condition on someone accessing
6876 * uninitialized data in the PCI dev struct through /proc.
6877 */
6878static int __init ipw2100_init(void)
6879{
6880 int ret;
6881
6882 printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
6883 printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
6884
6885#ifdef CONFIG_IEEE80211_NOWEP
6886 IPW_DEBUG_INFO(DRV_NAME ": Compiled with WEP disabled.\n");
6887#endif
6888
6889 ret = pci_module_init(&ipw2100_pci_driver);
6890
6891#ifdef CONFIG_IPW_DEBUG
6892 ipw2100_debug_level = debug;
6893 driver_create_file(&ipw2100_pci_driver.driver,
6894 &driver_attr_debug_level);
6895#endif
6896
6897 return ret;
6898}
6899
6900
6901/**
6902 * Cleanup ipw2100 driver registration
6903 */
6904static void __exit ipw2100_exit(void)
6905{
6906 /* FIXME: IPG: check that we have no instances of the devices open */
6907#ifdef CONFIG_IPW_DEBUG
6908 driver_remove_file(&ipw2100_pci_driver.driver,
6909 &driver_attr_debug_level);
6910#endif
6911 pci_unregister_driver(&ipw2100_pci_driver);
6912}
6913
6914module_init(ipw2100_init);
6915module_exit(ipw2100_exit);
6916
6917#define WEXT_USECHANNELS 1
6918
6919static const long ipw2100_frequencies[] = {
6920 2412, 2417, 2422, 2427,
6921 2432, 2437, 2442, 2447,
6922 2452, 2457, 2462, 2467,
6923 2472, 2484
6924};
6925
6926#define FREQ_COUNT (sizeof(ipw2100_frequencies) / \
6927 sizeof(ipw2100_frequencies[0]))
6928
6929static const long ipw2100_rates_11b[] = {
6930 1000000,
6931 2000000,
6932 5500000,
6933 11000000
6934};
6935
6936#define RATE_COUNT (sizeof(ipw2100_rates_11b) / sizeof(ipw2100_rates_11b[0]))
6937
6938static int ipw2100_wx_get_name(struct net_device *dev,
6939 struct iw_request_info *info,
6940 union iwreq_data *wrqu, char *extra)
6941{
6942 /*
6943 * This can be called at any time. No action lock required
6944 */
6945
6946 struct ipw2100_priv *priv = ieee80211_priv(dev);
6947 if (!(priv->status & STATUS_ASSOCIATED))
6948 strcpy(wrqu->name, "unassociated");
6949 else
6950 snprintf(wrqu->name, IFNAMSIZ, "IEEE 802.11b");
6951
6952 IPW_DEBUG_WX("Name: %s\n", wrqu->name);
6953 return 0;
6954}
6955
6956
6957static int ipw2100_wx_set_freq(struct net_device *dev,
6958 struct iw_request_info *info,
6959 union iwreq_data *wrqu, char *extra)
6960{
6961 struct ipw2100_priv *priv = ieee80211_priv(dev);
6962 struct iw_freq *fwrq = &wrqu->freq;
6963 int err = 0;
6964
6965 if (priv->ieee->iw_mode == IW_MODE_INFRA)
6966 return -EOPNOTSUPP;
6967
6968 down(&priv->action_sem);
6969 if (!(priv->status & STATUS_INITIALIZED)) {
6970 err = -EIO;
6971 goto done;
6972 }
6973
6974 /* if setting by freq convert to channel */
6975 if (fwrq->e == 1) {
6976 if ((fwrq->m >= (int) 2.412e8 &&
6977 fwrq->m <= (int) 2.487e8)) {
6978 int f = fwrq->m / 100000;
6979 int c = 0;
6980
6981 while ((c < REG_MAX_CHANNEL) &&
6982 (f != ipw2100_frequencies[c]))
6983 c++;
6984
6985 /* hack to fall through */
6986 fwrq->e = 0;
6987 fwrq->m = c + 1;
6988 }
6989 }
6990
6991 if (fwrq->e > 0 || fwrq->m > 1000)
6992 return -EOPNOTSUPP;
6993 else { /* Set the channel */
6994 IPW_DEBUG_WX("SET Freq/Channel -> %d \n", fwrq->m);
6995 err = ipw2100_set_channel(priv, fwrq->m, 0);
6996 }
6997
6998 done:
6999 up(&priv->action_sem);
7000 return err;
7001}
7002
7003
7004static int ipw2100_wx_get_freq(struct net_device *dev,
7005 struct iw_request_info *info,
7006 union iwreq_data *wrqu, char *extra)
7007{
7008 /*
7009 * This can be called at any time. No action lock required
7010 */
7011
7012 struct ipw2100_priv *priv = ieee80211_priv(dev);
7013
7014 wrqu->freq.e = 0;
7015
7016 /* If we are associated, trying to associate, or have a statically
7017 * configured CHANNEL then return that; otherwise return ANY */
7018 if (priv->config & CFG_STATIC_CHANNEL ||
7019 priv->status & STATUS_ASSOCIATED)
7020 wrqu->freq.m = priv->channel;
7021 else
7022 wrqu->freq.m = 0;
7023
7024 IPW_DEBUG_WX("GET Freq/Channel -> %d \n", priv->channel);
7025 return 0;
7026
7027}
7028
7029static int ipw2100_wx_set_mode(struct net_device *dev,
7030 struct iw_request_info *info,
7031 union iwreq_data *wrqu, char *extra)
7032{
7033 struct ipw2100_priv *priv = ieee80211_priv(dev);
7034 int err = 0;
7035
7036 IPW_DEBUG_WX("SET Mode -> %d \n", wrqu->mode);
7037
7038 if (wrqu->mode == priv->ieee->iw_mode)
7039 return 0;
7040
7041 down(&priv->action_sem);
7042 if (!(priv->status & STATUS_INITIALIZED)) {
7043 err = -EIO;
7044 goto done;
7045 }
7046
7047 switch (wrqu->mode) {
7048#ifdef CONFIG_IPW2100_MONITOR
7049 case IW_MODE_MONITOR:
7050 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7051 break;
7052#endif /* CONFIG_IPW2100_MONITOR */
7053 case IW_MODE_ADHOC:
7054 err = ipw2100_switch_mode(priv, IW_MODE_ADHOC);
7055 break;
7056 case IW_MODE_INFRA:
7057 case IW_MODE_AUTO:
7058 default:
7059 err = ipw2100_switch_mode(priv, IW_MODE_INFRA);
7060 break;
7061 }
7062
7063done:
7064 up(&priv->action_sem);
7065 return err;
7066}
7067
7068static int ipw2100_wx_get_mode(struct net_device *dev,
7069 struct iw_request_info *info,
7070 union iwreq_data *wrqu, char *extra)
7071{
7072 /*
7073 * This can be called at any time. No action lock required
7074 */
7075
7076 struct ipw2100_priv *priv = ieee80211_priv(dev);
7077
7078 wrqu->mode = priv->ieee->iw_mode;
7079 IPW_DEBUG_WX("GET Mode -> %d\n", wrqu->mode);
7080
7081 return 0;
7082}
7083
7084
7085#define POWER_MODES 5
7086
7087/* Values are in microsecond */
7088static const s32 timeout_duration[POWER_MODES] = {
7089 350000,
7090 250000,
7091 75000,
7092 37000,
7093 25000,
7094};
7095
7096static const s32 period_duration[POWER_MODES] = {
7097 400000,
7098 700000,
7099 1000000,
7100 1000000,
7101 1000000
7102};
7103
7104static int ipw2100_wx_get_range(struct net_device *dev,
7105 struct iw_request_info *info,
7106 union iwreq_data *wrqu, char *extra)
7107{
7108 /*
7109 * This can be called at any time. No action lock required
7110 */
7111
7112 struct ipw2100_priv *priv = ieee80211_priv(dev);
7113 struct iw_range *range = (struct iw_range *)extra;
7114 u16 val;
7115 int i, level;
7116
7117 wrqu->data.length = sizeof(*range);
7118 memset(range, 0, sizeof(*range));
7119
7120 /* Let's try to keep this struct in the same order as in
7121 * linux/include/wireless.h
7122 */
7123
7124 /* TODO: See what values we can set, and remove the ones we can't
7125 * set, or fill them with some default data.
7126 */
7127
7128 /* ~5 Mb/s real (802.11b) */
7129 range->throughput = 5 * 1000 * 1000;
7130
7131// range->sensitivity; /* signal level threshold range */
7132
7133 range->max_qual.qual = 100;
7134 /* TODO: Find real max RSSI and stick here */
7135 range->max_qual.level = 0;
7136 range->max_qual.noise = 0;
7137 range->max_qual.updated = 7; /* Updated all three */
7138
7139 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
7140 /* TODO: Find real 'good' to 'bad' threshol value for RSSI */
7141 range->avg_qual.level = 20 + IPW2100_RSSI_TO_DBM;
7142 range->avg_qual.noise = 0;
7143 range->avg_qual.updated = 7; /* Updated all three */
7144
7145 range->num_bitrates = RATE_COUNT;
7146
7147 for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++) {
7148 range->bitrate[i] = ipw2100_rates_11b[i];
7149 }
7150
7151 range->min_rts = MIN_RTS_THRESHOLD;
7152 range->max_rts = MAX_RTS_THRESHOLD;
7153 range->min_frag = MIN_FRAG_THRESHOLD;
7154 range->max_frag = MAX_FRAG_THRESHOLD;
7155
7156 range->min_pmp = period_duration[0]; /* Minimal PM period */
7157 range->max_pmp = period_duration[POWER_MODES-1];/* Maximal PM period */
7158 range->min_pmt = timeout_duration[POWER_MODES-1]; /* Minimal PM timeout */
7159 range->max_pmt = timeout_duration[0];/* Maximal PM timeout */
7160
7161 /* How to decode max/min PM period */
7162 range->pmp_flags = IW_POWER_PERIOD;
7163 /* How to decode max/min PM period */
7164 range->pmt_flags = IW_POWER_TIMEOUT;
7165 /* What PM options are supported */
7166 range->pm_capa = IW_POWER_TIMEOUT | IW_POWER_PERIOD;
7167
7168 range->encoding_size[0] = 5;
7169 range->encoding_size[1] = 13; /* Different token sizes */
7170 range->num_encoding_sizes = 2; /* Number of entry in the list */
7171 range->max_encoding_tokens = WEP_KEYS; /* Max number of tokens */
7172// range->encoding_login_index; /* token index for login token */
7173
7174 if (priv->ieee->iw_mode == IW_MODE_ADHOC) {
7175 range->txpower_capa = IW_TXPOW_DBM;
7176 range->num_txpower = IW_MAX_TXPOWER;
7177 for (i = 0, level = (IPW_TX_POWER_MAX_DBM * 16); i < IW_MAX_TXPOWER;
7178 i++, level -= ((IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM) * 16) /
7179 (IW_MAX_TXPOWER - 1))
7180 range->txpower[i] = level / 16;
7181 } else {
7182 range->txpower_capa = 0;
7183 range->num_txpower = 0;
7184 }
7185
7186
7187 /* Set the Wireless Extension versions */
7188 range->we_version_compiled = WIRELESS_EXT;
7189 range->we_version_source = 16;
7190
7191// range->retry_capa; /* What retry options are supported */
7192// range->retry_flags; /* How to decode max/min retry limit */
7193// range->r_time_flags; /* How to decode max/min retry life */
7194// range->min_retry; /* Minimal number of retries */
7195// range->max_retry; /* Maximal number of retries */
7196// range->min_r_time; /* Minimal retry lifetime */
7197// range->max_r_time; /* Maximal retry lifetime */
7198
7199 range->num_channels = FREQ_COUNT;
7200
7201 val = 0;
7202 for (i = 0; i < FREQ_COUNT; i++) {
7203 // TODO: Include only legal frequencies for some countries
7204// if (local->channel_mask & (1 << i)) {
7205 range->freq[val].i = i + 1;
7206 range->freq[val].m = ipw2100_frequencies[i] * 100000;
7207 range->freq[val].e = 1;
7208 val++;
7209// }
7210 if (val == IW_MAX_FREQUENCIES)
7211 break;
7212 }
7213 range->num_frequency = val;
7214
7215 IPW_DEBUG_WX("GET Range\n");
7216
7217 return 0;
7218}
7219
7220static int ipw2100_wx_set_wap(struct net_device *dev,
7221 struct iw_request_info *info,
7222 union iwreq_data *wrqu, char *extra)
7223{
7224 struct ipw2100_priv *priv = ieee80211_priv(dev);
7225 int err = 0;
7226
7227 static const unsigned char any[] = {
7228 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
7229 };
7230 static const unsigned char off[] = {
7231 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
7232 };
7233
7234 // sanity checks
7235 if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
7236 return -EINVAL;
7237
7238 down(&priv->action_sem);
7239 if (!(priv->status & STATUS_INITIALIZED)) {
7240 err = -EIO;
7241 goto done;
7242 }
7243
7244 if (!memcmp(any, wrqu->ap_addr.sa_data, ETH_ALEN) ||
7245 !memcmp(off, wrqu->ap_addr.sa_data, ETH_ALEN)) {
7246 /* we disable mandatory BSSID association */
7247 IPW_DEBUG_WX("exit - disable mandatory BSSID\n");
7248 priv->config &= ~CFG_STATIC_BSSID;
7249 err = ipw2100_set_mandatory_bssid(priv, NULL, 0);
7250 goto done;
7251 }
7252
7253 priv->config |= CFG_STATIC_BSSID;
7254 memcpy(priv->mandatory_bssid_mac, wrqu->ap_addr.sa_data, ETH_ALEN);
7255
7256 err = ipw2100_set_mandatory_bssid(priv, wrqu->ap_addr.sa_data, 0);
7257
7258 IPW_DEBUG_WX("SET BSSID -> %02X:%02X:%02X:%02X:%02X:%02X\n",
7259 wrqu->ap_addr.sa_data[0] & 0xff,
7260 wrqu->ap_addr.sa_data[1] & 0xff,
7261 wrqu->ap_addr.sa_data[2] & 0xff,
7262 wrqu->ap_addr.sa_data[3] & 0xff,
7263 wrqu->ap_addr.sa_data[4] & 0xff,
7264 wrqu->ap_addr.sa_data[5] & 0xff);
7265
7266 done:
7267 up(&priv->action_sem);
7268 return err;
7269}
7270
7271static int ipw2100_wx_get_wap(struct net_device *dev,
7272 struct iw_request_info *info,
7273 union iwreq_data *wrqu, char *extra)
7274{
7275 /*
7276 * This can be called at any time. No action lock required
7277 */
7278
7279 struct ipw2100_priv *priv = ieee80211_priv(dev);
7280
7281 /* If we are associated, trying to associate, or have a statically
7282 * configured BSSID then return that; otherwise return ANY */
7283 if (priv->config & CFG_STATIC_BSSID ||
7284 priv->status & STATUS_ASSOCIATED) {
7285 wrqu->ap_addr.sa_family = ARPHRD_ETHER;
7286 memcpy(wrqu->ap_addr.sa_data, &priv->bssid, ETH_ALEN);
7287 } else
7288 memset(wrqu->ap_addr.sa_data, 0, ETH_ALEN);
7289
7290 IPW_DEBUG_WX("Getting WAP BSSID: " MAC_FMT "\n",
7291 MAC_ARG(wrqu->ap_addr.sa_data));
7292 return 0;
7293}
7294
7295static int ipw2100_wx_set_essid(struct net_device *dev,
7296 struct iw_request_info *info,
7297 union iwreq_data *wrqu, char *extra)
7298{
7299 struct ipw2100_priv *priv = ieee80211_priv(dev);
7300 char *essid = ""; /* ANY */
7301 int length = 0;
7302 int err = 0;
7303
7304 down(&priv->action_sem);
7305 if (!(priv->status & STATUS_INITIALIZED)) {
7306 err = -EIO;
7307 goto done;
7308 }
7309
7310 if (wrqu->essid.flags && wrqu->essid.length) {
7311 length = wrqu->essid.length - 1;
7312 essid = extra;
7313 }
7314
7315 if (length == 0) {
7316 IPW_DEBUG_WX("Setting ESSID to ANY\n");
7317 priv->config &= ~CFG_STATIC_ESSID;
7318 err = ipw2100_set_essid(priv, NULL, 0, 0);
7319 goto done;
7320 }
7321
7322 length = min(length, IW_ESSID_MAX_SIZE);
7323
7324 priv->config |= CFG_STATIC_ESSID;
7325
7326 if (priv->essid_len == length && !memcmp(priv->essid, extra, length)) {
7327 IPW_DEBUG_WX("ESSID set to current ESSID.\n");
7328 err = 0;
7329 goto done;
7330 }
7331
7332 IPW_DEBUG_WX("Setting ESSID: '%s' (%d)\n", escape_essid(essid, length),
7333 length);
7334
7335 priv->essid_len = length;
7336 memcpy(priv->essid, essid, priv->essid_len);
7337
7338 err = ipw2100_set_essid(priv, essid, length, 0);
7339
7340 done:
7341 up(&priv->action_sem);
7342 return err;
7343}
7344
7345static int ipw2100_wx_get_essid(struct net_device *dev,
7346 struct iw_request_info *info,
7347 union iwreq_data *wrqu, char *extra)
7348{
7349 /*
7350 * This can be called at any time. No action lock required
7351 */
7352
7353 struct ipw2100_priv *priv = ieee80211_priv(dev);
7354
7355 /* If we are associated, trying to associate, or have a statically
7356 * configured ESSID then return that; otherwise return ANY */
7357 if (priv->config & CFG_STATIC_ESSID ||
7358 priv->status & STATUS_ASSOCIATED) {
7359 IPW_DEBUG_WX("Getting essid: '%s'\n",
7360 escape_essid(priv->essid, priv->essid_len));
7361 memcpy(extra, priv->essid, priv->essid_len);
7362 wrqu->essid.length = priv->essid_len;
7363 wrqu->essid.flags = 1; /* active */
7364 } else {
7365 IPW_DEBUG_WX("Getting essid: ANY\n");
7366 wrqu->essid.length = 0;
7367 wrqu->essid.flags = 0; /* active */
7368 }
7369
7370 return 0;
7371}
7372
7373static int ipw2100_wx_set_nick(struct net_device *dev,
7374 struct iw_request_info *info,
7375 union iwreq_data *wrqu, char *extra)
7376{
7377 /*
7378 * This can be called at any time. No action lock required
7379 */
7380
7381 struct ipw2100_priv *priv = ieee80211_priv(dev);
7382
7383 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
7384 return -E2BIG;
7385
7386 wrqu->data.length = min((size_t)wrqu->data.length, sizeof(priv->nick));
7387 memset(priv->nick, 0, sizeof(priv->nick));
7388 memcpy(priv->nick, extra, wrqu->data.length);
7389
7390 IPW_DEBUG_WX("SET Nickname -> %s \n", priv->nick);
7391
7392 return 0;
7393}
7394
7395static int ipw2100_wx_get_nick(struct net_device *dev,
7396 struct iw_request_info *info,
7397 union iwreq_data *wrqu, char *extra)
7398{
7399 /*
7400 * This can be called at any time. No action lock required
7401 */
7402
7403 struct ipw2100_priv *priv = ieee80211_priv(dev);
7404
7405 wrqu->data.length = strlen(priv->nick) + 1;
7406 memcpy(extra, priv->nick, wrqu->data.length);
7407 wrqu->data.flags = 1; /* active */
7408
7409 IPW_DEBUG_WX("GET Nickname -> %s \n", extra);
7410
7411 return 0;
7412}
7413
7414static int ipw2100_wx_set_rate(struct net_device *dev,
7415 struct iw_request_info *info,
7416 union iwreq_data *wrqu, char *extra)
7417{
7418 struct ipw2100_priv *priv = ieee80211_priv(dev);
7419 u32 target_rate = wrqu->bitrate.value;
7420 u32 rate;
7421 int err = 0;
7422
7423 down(&priv->action_sem);
7424 if (!(priv->status & STATUS_INITIALIZED)) {
7425 err = -EIO;
7426 goto done;
7427 }
7428
7429 rate = 0;
7430
7431 if (target_rate == 1000000 ||
7432 (!wrqu->bitrate.fixed && target_rate > 1000000))
7433 rate |= TX_RATE_1_MBIT;
7434 if (target_rate == 2000000 ||
7435 (!wrqu->bitrate.fixed && target_rate > 2000000))
7436 rate |= TX_RATE_2_MBIT;
7437 if (target_rate == 5500000 ||
7438 (!wrqu->bitrate.fixed && target_rate > 5500000))
7439 rate |= TX_RATE_5_5_MBIT;
7440 if (target_rate == 11000000 ||
7441 (!wrqu->bitrate.fixed && target_rate > 11000000))
7442 rate |= TX_RATE_11_MBIT;
7443 if (rate == 0)
7444 rate = DEFAULT_TX_RATES;
7445
7446 err = ipw2100_set_tx_rates(priv, rate, 0);
7447
7448 IPW_DEBUG_WX("SET Rate -> %04X \n", rate);
7449 done:
7450 up(&priv->action_sem);
7451 return err;
7452}
7453
7454
7455static int ipw2100_wx_get_rate(struct net_device *dev,
7456 struct iw_request_info *info,
7457 union iwreq_data *wrqu, char *extra)
7458{
7459 struct ipw2100_priv *priv = ieee80211_priv(dev);
7460 int val;
7461 int len = sizeof(val);
7462 int err = 0;
7463
7464 if (!(priv->status & STATUS_ENABLED) ||
7465 priv->status & STATUS_RF_KILL_MASK ||
7466 !(priv->status & STATUS_ASSOCIATED)) {
7467 wrqu->bitrate.value = 0;
7468 return 0;
7469 }
7470
7471 down(&priv->action_sem);
7472 if (!(priv->status & STATUS_INITIALIZED)) {
7473 err = -EIO;
7474 goto done;
7475 }
7476
7477 err = ipw2100_get_ordinal(priv, IPW_ORD_CURRENT_TX_RATE, &val, &len);
7478 if (err) {
7479 IPW_DEBUG_WX("failed querying ordinals.\n");
7480 return err;
7481 }
7482
7483 switch (val & TX_RATE_MASK) {
7484 case TX_RATE_1_MBIT:
7485 wrqu->bitrate.value = 1000000;
7486 break;
7487 case TX_RATE_2_MBIT:
7488 wrqu->bitrate.value = 2000000;
7489 break;
7490 case TX_RATE_5_5_MBIT:
7491 wrqu->bitrate.value = 5500000;
7492 break;
7493 case TX_RATE_11_MBIT:
7494 wrqu->bitrate.value = 11000000;
7495 break;
7496 default:
7497 wrqu->bitrate.value = 0;
7498 }
7499
7500 IPW_DEBUG_WX("GET Rate -> %d \n", wrqu->bitrate.value);
7501
7502 done:
7503 up(&priv->action_sem);
7504 return err;
7505}
7506
7507static int ipw2100_wx_set_rts(struct net_device *dev,
7508 struct iw_request_info *info,
7509 union iwreq_data *wrqu, char *extra)
7510{
7511 struct ipw2100_priv *priv = ieee80211_priv(dev);
7512 int value, err;
7513
7514 /* Auto RTS not yet supported */
7515 if (wrqu->rts.fixed == 0)
7516 return -EINVAL;
7517
7518 down(&priv->action_sem);
7519 if (!(priv->status & STATUS_INITIALIZED)) {
7520 err = -EIO;
7521 goto done;
7522 }
7523
7524 if (wrqu->rts.disabled)
7525 value = priv->rts_threshold | RTS_DISABLED;
7526 else {
7527 if (wrqu->rts.value < 1 ||
7528 wrqu->rts.value > 2304) {
7529 err = -EINVAL;
7530 goto done;
7531 }
7532 value = wrqu->rts.value;
7533 }
7534
7535 err = ipw2100_set_rts_threshold(priv, value);
7536
7537 IPW_DEBUG_WX("SET RTS Threshold -> 0x%08X \n", value);
7538 done:
7539 up(&priv->action_sem);
7540 return err;
7541}
7542
7543static int ipw2100_wx_get_rts(struct net_device *dev,
7544 struct iw_request_info *info,
7545 union iwreq_data *wrqu, char *extra)
7546{
7547 /*
7548 * This can be called at any time. No action lock required
7549 */
7550
7551 struct ipw2100_priv *priv = ieee80211_priv(dev);
7552
7553 wrqu->rts.value = priv->rts_threshold & ~RTS_DISABLED;
7554 wrqu->rts.fixed = 1; /* no auto select */
7555
7556 /* If RTS is set to the default value, then it is disabled */
7557 wrqu->rts.disabled = (priv->rts_threshold & RTS_DISABLED) ? 1 : 0;
7558
7559 IPW_DEBUG_WX("GET RTS Threshold -> 0x%08X \n", wrqu->rts.value);
7560
7561 return 0;
7562}
7563
7564static int ipw2100_wx_set_txpow(struct net_device *dev,
7565 struct iw_request_info *info,
7566 union iwreq_data *wrqu, char *extra)
7567{
7568 struct ipw2100_priv *priv = ieee80211_priv(dev);
7569 int err = 0, value;
7570
7571 if (priv->ieee->iw_mode != IW_MODE_ADHOC)
7572 return -EINVAL;
7573
7574 if (wrqu->txpower.disabled == 1 || wrqu->txpower.fixed == 0)
7575 value = IPW_TX_POWER_DEFAULT;
7576 else {
7577 if (wrqu->txpower.value < IPW_TX_POWER_MIN_DBM ||
7578 wrqu->txpower.value > IPW_TX_POWER_MAX_DBM)
7579 return -EINVAL;
7580
7581 value = (wrqu->txpower.value - IPW_TX_POWER_MIN_DBM) * 16 /
7582 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM);
7583 }
7584
7585 down(&priv->action_sem);
7586 if (!(priv->status & STATUS_INITIALIZED)) {
7587 err = -EIO;
7588 goto done;
7589 }
7590
7591 err = ipw2100_set_tx_power(priv, value);
7592
7593 IPW_DEBUG_WX("SET TX Power -> %d \n", value);
7594
7595 done:
7596 up(&priv->action_sem);
7597 return err;
7598}
7599
7600static int ipw2100_wx_get_txpow(struct net_device *dev,
7601 struct iw_request_info *info,
7602 union iwreq_data *wrqu, char *extra)
7603{
7604 /*
7605 * This can be called at any time. No action lock required
7606 */
7607
7608 struct ipw2100_priv *priv = ieee80211_priv(dev);
7609
7610 if (priv->ieee->iw_mode != IW_MODE_ADHOC) {
7611 wrqu->power.disabled = 1;
7612 return 0;
7613 }
7614
7615 if (priv->tx_power == IPW_TX_POWER_DEFAULT) {
7616 wrqu->power.fixed = 0;
7617 wrqu->power.value = IPW_TX_POWER_MAX_DBM;
7618 wrqu->power.disabled = 1;
7619 } else {
7620 wrqu->power.disabled = 0;
7621 wrqu->power.fixed = 1;
7622 wrqu->power.value =
7623 (priv->tx_power *
7624 (IPW_TX_POWER_MAX_DBM - IPW_TX_POWER_MIN_DBM)) /
7625 (IPW_TX_POWER_MAX - IPW_TX_POWER_MIN) +
7626 IPW_TX_POWER_MIN_DBM;
7627 }
7628
7629 wrqu->power.flags = IW_TXPOW_DBM;
7630
7631 IPW_DEBUG_WX("GET TX Power -> %d \n", wrqu->power.value);
7632
7633 return 0;
7634}
7635
7636static int ipw2100_wx_set_frag(struct net_device *dev,
7637 struct iw_request_info *info,
7638 union iwreq_data *wrqu, char *extra)
7639{
7640 /*
7641 * This can be called at any time. No action lock required
7642 */
7643
7644 struct ipw2100_priv *priv = ieee80211_priv(dev);
7645
7646 if (!wrqu->frag.fixed)
7647 return -EINVAL;
7648
7649 if (wrqu->frag.disabled) {
7650 priv->frag_threshold |= FRAG_DISABLED;
7651 priv->ieee->fts = DEFAULT_FTS;
7652 } else {
7653 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
7654 wrqu->frag.value > MAX_FRAG_THRESHOLD)
7655 return -EINVAL;
7656
7657 priv->ieee->fts = wrqu->frag.value & ~0x1;
7658 priv->frag_threshold = priv->ieee->fts;
7659 }
7660
7661 IPW_DEBUG_WX("SET Frag Threshold -> %d \n", priv->ieee->fts);
7662
7663 return 0;
7664}
7665
7666static int ipw2100_wx_get_frag(struct net_device *dev,
7667 struct iw_request_info *info,
7668 union iwreq_data *wrqu, char *extra)
7669{
7670 /*
7671 * This can be called at any time. No action lock required
7672 */
7673
7674 struct ipw2100_priv *priv = ieee80211_priv(dev);
7675 wrqu->frag.value = priv->frag_threshold & ~FRAG_DISABLED;
7676 wrqu->frag.fixed = 0; /* no auto select */
7677 wrqu->frag.disabled = (priv->frag_threshold & FRAG_DISABLED) ? 1 : 0;
7678
7679 IPW_DEBUG_WX("GET Frag Threshold -> %d \n", wrqu->frag.value);
7680
7681 return 0;
7682}
7683
7684static int ipw2100_wx_set_retry(struct net_device *dev,
7685 struct iw_request_info *info,
7686 union iwreq_data *wrqu, char *extra)
7687{
7688 struct ipw2100_priv *priv = ieee80211_priv(dev);
7689 int err = 0;
7690
7691 if (wrqu->retry.flags & IW_RETRY_LIFETIME ||
7692 wrqu->retry.disabled)
7693 return -EINVAL;
7694
7695 if (!(wrqu->retry.flags & IW_RETRY_LIMIT))
7696 return 0;
7697
7698 down(&priv->action_sem);
7699 if (!(priv->status & STATUS_INITIALIZED)) {
7700 err = -EIO;
7701 goto done;
7702 }
7703
7704 if (wrqu->retry.flags & IW_RETRY_MIN) {
7705 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7706 IPW_DEBUG_WX("SET Short Retry Limit -> %d \n",
7707 wrqu->retry.value);
7708 goto done;
7709 }
7710
7711 if (wrqu->retry.flags & IW_RETRY_MAX) {
7712 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7713 IPW_DEBUG_WX("SET Long Retry Limit -> %d \n",
7714 wrqu->retry.value);
7715 goto done;
7716 }
7717
7718 err = ipw2100_set_short_retry(priv, wrqu->retry.value);
7719 if (!err)
7720 err = ipw2100_set_long_retry(priv, wrqu->retry.value);
7721
7722 IPW_DEBUG_WX("SET Both Retry Limits -> %d \n", wrqu->retry.value);
7723
7724 done:
7725 up(&priv->action_sem);
7726 return err;
7727}
7728
7729static int ipw2100_wx_get_retry(struct net_device *dev,
7730 struct iw_request_info *info,
7731 union iwreq_data *wrqu, char *extra)
7732{
7733 /*
7734 * This can be called at any time. No action lock required
7735 */
7736
7737 struct ipw2100_priv *priv = ieee80211_priv(dev);
7738
7739 wrqu->retry.disabled = 0; /* can't be disabled */
7740
7741 if ((wrqu->retry.flags & IW_RETRY_TYPE) ==
7742 IW_RETRY_LIFETIME)
7743 return -EINVAL;
7744
7745 if (wrqu->retry.flags & IW_RETRY_MAX) {
7746 wrqu->retry.flags = IW_RETRY_LIMIT & IW_RETRY_MAX;
7747 wrqu->retry.value = priv->long_retry_limit;
7748 } else {
7749 wrqu->retry.flags =
7750 (priv->short_retry_limit !=
7751 priv->long_retry_limit) ?
7752 IW_RETRY_LIMIT & IW_RETRY_MIN : IW_RETRY_LIMIT;
7753
7754 wrqu->retry.value = priv->short_retry_limit;
7755 }
7756
7757 IPW_DEBUG_WX("GET Retry -> %d \n", wrqu->retry.value);
7758
7759 return 0;
7760}
7761
7762static int ipw2100_wx_set_scan(struct net_device *dev,
7763 struct iw_request_info *info,
7764 union iwreq_data *wrqu, char *extra)
7765{
7766 struct ipw2100_priv *priv = ieee80211_priv(dev);
7767 int err = 0;
7768
7769 down(&priv->action_sem);
7770 if (!(priv->status & STATUS_INITIALIZED)) {
7771 err = -EIO;
7772 goto done;
7773 }
7774
7775 IPW_DEBUG_WX("Initiating scan...\n");
7776 if (ipw2100_set_scan_options(priv) ||
7777 ipw2100_start_scan(priv)) {
7778 IPW_DEBUG_WX("Start scan failed.\n");
7779
7780 /* TODO: Mark a scan as pending so when hardware initialized
7781 * a scan starts */
7782 }
7783
7784 done:
7785 up(&priv->action_sem);
7786 return err;
7787}
7788
7789static int ipw2100_wx_get_scan(struct net_device *dev,
7790 struct iw_request_info *info,
7791 union iwreq_data *wrqu, char *extra)
7792{
7793 /*
7794 * This can be called at any time. No action lock required
7795 */
7796
7797 struct ipw2100_priv *priv = ieee80211_priv(dev);
7798 return ieee80211_wx_get_scan(priv->ieee, info, wrqu, extra);
7799}
7800
7801
7802/*
7803 * Implementation based on code in hostap-driver v0.1.3 hostap_ioctl.c
7804 */
7805static int ipw2100_wx_set_encode(struct net_device *dev,
7806 struct iw_request_info *info,
7807 union iwreq_data *wrqu, char *key)
7808{
7809 /*
7810 * No check of STATUS_INITIALIZED required
7811 */
7812
7813 struct ipw2100_priv *priv = ieee80211_priv(dev);
7814 return ieee80211_wx_set_encode(priv->ieee, info, wrqu, key);
7815}
7816
7817static int ipw2100_wx_get_encode(struct net_device *dev,
7818 struct iw_request_info *info,
7819 union iwreq_data *wrqu, char *key)
7820{
7821 /*
7822 * This can be called at any time. No action lock required
7823 */
7824
7825 struct ipw2100_priv *priv = ieee80211_priv(dev);
7826 return ieee80211_wx_get_encode(priv->ieee, info, wrqu, key);
7827}
7828
7829static int ipw2100_wx_set_power(struct net_device *dev,
7830 struct iw_request_info *info,
7831 union iwreq_data *wrqu, char *extra)
7832{
7833 struct ipw2100_priv *priv = ieee80211_priv(dev);
7834 int err = 0;
7835
7836 down(&priv->action_sem);
7837 if (!(priv->status & STATUS_INITIALIZED)) {
7838 err = -EIO;
7839 goto done;
7840 }
7841
7842 if (wrqu->power.disabled) {
7843 priv->power_mode = IPW_POWER_LEVEL(priv->power_mode);
7844 err = ipw2100_set_power_mode(priv, IPW_POWER_MODE_CAM);
7845 IPW_DEBUG_WX("SET Power Management Mode -> off\n");
7846 goto done;
7847 }
7848
7849 switch (wrqu->power.flags & IW_POWER_MODE) {
7850 case IW_POWER_ON: /* If not specified */
7851 case IW_POWER_MODE: /* If set all mask */
7852 case IW_POWER_ALL_R: /* If explicitely state all */
7853 break;
7854 default: /* Otherwise we don't support it */
7855 IPW_DEBUG_WX("SET PM Mode: %X not supported.\n",
7856 wrqu->power.flags);
7857 err = -EOPNOTSUPP;
7858 goto done;
7859 }
7860
7861 /* If the user hasn't specified a power management mode yet, default
7862 * to BATTERY */
7863 priv->power_mode = IPW_POWER_ENABLED | priv->power_mode;
7864 err = ipw2100_set_power_mode(priv, IPW_POWER_LEVEL(priv->power_mode));
7865
7866 IPW_DEBUG_WX("SET Power Management Mode -> 0x%02X\n",
7867 priv->power_mode);
7868
7869 done:
7870 up(&priv->action_sem);
7871 return err;
7872
7873}
7874
7875static int ipw2100_wx_get_power(struct net_device *dev,
7876 struct iw_request_info *info,
7877 union iwreq_data *wrqu, char *extra)
7878{
7879 /*
7880 * This can be called at any time. No action lock required
7881 */
7882
7883 struct ipw2100_priv *priv = ieee80211_priv(dev);
7884
7885 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7886 wrqu->power.disabled = 1;
7887 } else {
7888 wrqu->power.disabled = 0;
7889 wrqu->power.flags = 0;
7890 }
7891
7892 IPW_DEBUG_WX("GET Power Management Mode -> %02X\n", priv->power_mode);
7893
7894 return 0;
7895}
7896
7897
7898/*
7899 *
7900 * IWPRIV handlers
7901 *
7902 */
7903#ifdef CONFIG_IPW2100_MONITOR
7904static int ipw2100_wx_set_promisc(struct net_device *dev,
7905 struct iw_request_info *info,
7906 union iwreq_data *wrqu, char *extra)
7907{
7908 struct ipw2100_priv *priv = ieee80211_priv(dev);
7909 int *parms = (int *)extra;
7910 int enable = (parms[0] > 0);
7911 int err = 0;
7912
7913 down(&priv->action_sem);
7914 if (!(priv->status & STATUS_INITIALIZED)) {
7915 err = -EIO;
7916 goto done;
7917 }
7918
7919 if (enable) {
7920 if (priv->ieee->iw_mode == IW_MODE_MONITOR) {
7921 err = ipw2100_set_channel(priv, parms[1], 0);
7922 goto done;
7923 }
7924 priv->channel = parms[1];
7925 err = ipw2100_switch_mode(priv, IW_MODE_MONITOR);
7926 } else {
7927 if (priv->ieee->iw_mode == IW_MODE_MONITOR)
7928 err = ipw2100_switch_mode(priv, priv->last_mode);
7929 }
7930 done:
7931 up(&priv->action_sem);
7932 return err;
7933}
7934
7935static int ipw2100_wx_reset(struct net_device *dev,
7936 struct iw_request_info *info,
7937 union iwreq_data *wrqu, char *extra)
7938{
7939 struct ipw2100_priv *priv = ieee80211_priv(dev);
7940 if (priv->status & STATUS_INITIALIZED)
7941 schedule_reset(priv);
7942 return 0;
7943}
7944
7945#endif
7946
7947static int ipw2100_wx_set_powermode(struct net_device *dev,
7948 struct iw_request_info *info,
7949 union iwreq_data *wrqu, char *extra)
7950{
7951 struct ipw2100_priv *priv = ieee80211_priv(dev);
7952 int err = 0, mode = *(int *)extra;
7953
7954 down(&priv->action_sem);
7955 if (!(priv->status & STATUS_INITIALIZED)) {
7956 err = -EIO;
7957 goto done;
7958 }
7959
7960 if ((mode < 1) || (mode > POWER_MODES))
7961 mode = IPW_POWER_AUTO;
7962
7963 if (priv->power_mode != mode)
7964 err = ipw2100_set_power_mode(priv, mode);
7965 done:
7966 up(&priv->action_sem);
7967 return err;
7968}
7969
7970#define MAX_POWER_STRING 80
7971static int ipw2100_wx_get_powermode(struct net_device *dev,
7972 struct iw_request_info *info,
7973 union iwreq_data *wrqu, char *extra)
7974{
7975 /*
7976 * This can be called at any time. No action lock required
7977 */
7978
7979 struct ipw2100_priv *priv = ieee80211_priv(dev);
7980 int level = IPW_POWER_LEVEL(priv->power_mode);
7981 s32 timeout, period;
7982
7983 if (!(priv->power_mode & IPW_POWER_ENABLED)) {
7984 snprintf(extra, MAX_POWER_STRING,
7985 "Power save level: %d (Off)", level);
7986 } else {
7987 switch (level) {
7988 case IPW_POWER_MODE_CAM:
7989 snprintf(extra, MAX_POWER_STRING,
7990 "Power save level: %d (None)", level);
7991 break;
7992 case IPW_POWER_AUTO:
7993 snprintf(extra, MAX_POWER_STRING,
7994 "Power save level: %d (Auto)", 0);
7995 break;
7996 default:
7997 timeout = timeout_duration[level - 1] / 1000;
7998 period = period_duration[level - 1] / 1000;
7999 snprintf(extra, MAX_POWER_STRING,
8000 "Power save level: %d "
8001 "(Timeout %dms, Period %dms)",
8002 level, timeout, period);
8003 }
8004 }
8005
8006 wrqu->data.length = strlen(extra) + 1;
8007
8008 return 0;
8009}
8010
8011
8012static int ipw2100_wx_set_preamble(struct net_device *dev,
8013 struct iw_request_info *info,
8014 union iwreq_data *wrqu, char *extra)
8015{
8016 struct ipw2100_priv *priv = ieee80211_priv(dev);
8017 int err, mode = *(int *)extra;
8018
8019 down(&priv->action_sem);
8020 if (!(priv->status & STATUS_INITIALIZED)) {
8021 err = -EIO;
8022 goto done;
8023 }
8024
8025 if (mode == 1)
8026 priv->config |= CFG_LONG_PREAMBLE;
8027 else if (mode == 0)
8028 priv->config &= ~CFG_LONG_PREAMBLE;
8029 else {
8030 err = -EINVAL;
8031 goto done;
8032 }
8033
8034 err = ipw2100_system_config(priv, 0);
8035
8036done:
8037 up(&priv->action_sem);
8038 return err;
8039}
8040
8041static int ipw2100_wx_get_preamble(struct net_device *dev,
8042 struct iw_request_info *info,
8043 union iwreq_data *wrqu, char *extra)
8044{
8045 /*
8046 * This can be called at any time. No action lock required
8047 */
8048
8049 struct ipw2100_priv *priv = ieee80211_priv(dev);
8050
8051 if (priv->config & CFG_LONG_PREAMBLE)
8052 snprintf(wrqu->name, IFNAMSIZ, "long (1)");
8053 else
8054 snprintf(wrqu->name, IFNAMSIZ, "auto (0)");
8055
8056 return 0;
8057}
8058
8059static iw_handler ipw2100_wx_handlers[] =
8060{
8061 NULL, /* SIOCSIWCOMMIT */
8062 ipw2100_wx_get_name, /* SIOCGIWNAME */
8063 NULL, /* SIOCSIWNWID */
8064 NULL, /* SIOCGIWNWID */
8065 ipw2100_wx_set_freq, /* SIOCSIWFREQ */
8066 ipw2100_wx_get_freq, /* SIOCGIWFREQ */
8067 ipw2100_wx_set_mode, /* SIOCSIWMODE */
8068 ipw2100_wx_get_mode, /* SIOCGIWMODE */
8069 NULL, /* SIOCSIWSENS */
8070 NULL, /* SIOCGIWSENS */
8071 NULL, /* SIOCSIWRANGE */
8072 ipw2100_wx_get_range, /* SIOCGIWRANGE */
8073 NULL, /* SIOCSIWPRIV */
8074 NULL, /* SIOCGIWPRIV */
8075 NULL, /* SIOCSIWSTATS */
8076 NULL, /* SIOCGIWSTATS */
8077 NULL, /* SIOCSIWSPY */
8078 NULL, /* SIOCGIWSPY */
8079 NULL, /* SIOCGIWTHRSPY */
8080 NULL, /* SIOCWIWTHRSPY */
8081 ipw2100_wx_set_wap, /* SIOCSIWAP */
8082 ipw2100_wx_get_wap, /* SIOCGIWAP */
8083 NULL, /* -- hole -- */
8084 NULL, /* SIOCGIWAPLIST -- deprecated */
8085 ipw2100_wx_set_scan, /* SIOCSIWSCAN */
8086 ipw2100_wx_get_scan, /* SIOCGIWSCAN */
8087 ipw2100_wx_set_essid, /* SIOCSIWESSID */
8088 ipw2100_wx_get_essid, /* SIOCGIWESSID */
8089 ipw2100_wx_set_nick, /* SIOCSIWNICKN */
8090 ipw2100_wx_get_nick, /* SIOCGIWNICKN */
8091 NULL, /* -- hole -- */
8092 NULL, /* -- hole -- */
8093 ipw2100_wx_set_rate, /* SIOCSIWRATE */
8094 ipw2100_wx_get_rate, /* SIOCGIWRATE */
8095 ipw2100_wx_set_rts, /* SIOCSIWRTS */
8096 ipw2100_wx_get_rts, /* SIOCGIWRTS */
8097 ipw2100_wx_set_frag, /* SIOCSIWFRAG */
8098 ipw2100_wx_get_frag, /* SIOCGIWFRAG */
8099 ipw2100_wx_set_txpow, /* SIOCSIWTXPOW */
8100 ipw2100_wx_get_txpow, /* SIOCGIWTXPOW */
8101 ipw2100_wx_set_retry, /* SIOCSIWRETRY */
8102 ipw2100_wx_get_retry, /* SIOCGIWRETRY */
8103 ipw2100_wx_set_encode, /* SIOCSIWENCODE */
8104 ipw2100_wx_get_encode, /* SIOCGIWENCODE */
8105 ipw2100_wx_set_power, /* SIOCSIWPOWER */
8106 ipw2100_wx_get_power, /* SIOCGIWPOWER */
8107};
8108
8109#define IPW2100_PRIV_SET_MONITOR SIOCIWFIRSTPRIV
8110#define IPW2100_PRIV_RESET SIOCIWFIRSTPRIV+1
8111#define IPW2100_PRIV_SET_POWER SIOCIWFIRSTPRIV+2
8112#define IPW2100_PRIV_GET_POWER SIOCIWFIRSTPRIV+3
8113#define IPW2100_PRIV_SET_LONGPREAMBLE SIOCIWFIRSTPRIV+4
8114#define IPW2100_PRIV_GET_LONGPREAMBLE SIOCIWFIRSTPRIV+5
8115
8116static const struct iw_priv_args ipw2100_private_args[] = {
8117
8118#ifdef CONFIG_IPW2100_MONITOR
8119 {
8120 IPW2100_PRIV_SET_MONITOR,
8121 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "monitor"
8122 },
8123 {
8124 IPW2100_PRIV_RESET,
8125 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 0, 0, "reset"
8126 },
8127#endif /* CONFIG_IPW2100_MONITOR */
8128
8129 {
8130 IPW2100_PRIV_SET_POWER,
8131 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_power"
8132 },
8133 {
8134 IPW2100_PRIV_GET_POWER,
8135 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | MAX_POWER_STRING, "get_power"
8136 },
8137 {
8138 IPW2100_PRIV_SET_LONGPREAMBLE,
8139 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"
8140 },
8141 {
8142 IPW2100_PRIV_GET_LONGPREAMBLE,
8143 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | IFNAMSIZ, "get_preamble"
8144 },
8145};
8146
8147static iw_handler ipw2100_private_handler[] = {
8148#ifdef CONFIG_IPW2100_MONITOR
8149 ipw2100_wx_set_promisc,
8150 ipw2100_wx_reset,
8151#else /* CONFIG_IPW2100_MONITOR */
8152 NULL,
8153 NULL,
8154#endif /* CONFIG_IPW2100_MONITOR */
8155 ipw2100_wx_set_powermode,
8156 ipw2100_wx_get_powermode,
8157 ipw2100_wx_set_preamble,
8158 ipw2100_wx_get_preamble,
8159};
8160
8161static struct iw_handler_def ipw2100_wx_handler_def =
8162{
8163 .standard = ipw2100_wx_handlers,
8164 .num_standard = sizeof(ipw2100_wx_handlers) / sizeof(iw_handler),
8165 .num_private = sizeof(ipw2100_private_handler) / sizeof(iw_handler),
8166 .num_private_args = sizeof(ipw2100_private_args) /
8167 sizeof(struct iw_priv_args),
8168 .private = (iw_handler *)ipw2100_private_handler,
8169 .private_args = (struct iw_priv_args *)ipw2100_private_args,
8170};
8171
8172/*
8173 * Get wireless statistics.
8174 * Called by /proc/net/wireless
8175 * Also called by SIOCGIWSTATS
8176 */
8177static struct iw_statistics *ipw2100_wx_wireless_stats(struct net_device * dev)
8178{
8179 enum {
8180 POOR = 30,
8181 FAIR = 60,
8182 GOOD = 80,
8183 VERY_GOOD = 90,
8184 EXCELLENT = 95,
8185 PERFECT = 100
8186 };
8187 int rssi_qual;
8188 int tx_qual;
8189 int beacon_qual;
8190
8191 struct ipw2100_priv *priv = ieee80211_priv(dev);
8192 struct iw_statistics *wstats;
8193 u32 rssi, quality, tx_retries, missed_beacons, tx_failures;
8194 u32 ord_len = sizeof(u32);
8195
8196 if (!priv)
8197 return (struct iw_statistics *) NULL;
8198
8199 wstats = &priv->wstats;
8200
8201 /* if hw is disabled, then ipw2100_get_ordinal() can't be called.
8202 * ipw2100_wx_wireless_stats seems to be called before fw is
8203 * initialized. STATUS_ASSOCIATED will only be set if the hw is up
8204 * and associated; if not associcated, the values are all meaningless
8205 * anyway, so set them all to NULL and INVALID */
8206 if (!(priv->status & STATUS_ASSOCIATED)) {
8207 wstats->miss.beacon = 0;
8208 wstats->discard.retries = 0;
8209 wstats->qual.qual = 0;
8210 wstats->qual.level = 0;
8211 wstats->qual.noise = 0;
8212 wstats->qual.updated = 7;
8213 wstats->qual.updated |= IW_QUAL_NOISE_INVALID |
8214 IW_QUAL_QUAL_INVALID | IW_QUAL_LEVEL_INVALID;
8215 return wstats;
8216 }
8217
8218 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_MISSED_BCNS,
8219 &missed_beacons, &ord_len))
8220 goto fail_get_ordinal;
8221
8222 /* If we don't have a connection the quality and level is 0*/
8223 if (!(priv->status & STATUS_ASSOCIATED)) {
8224 wstats->qual.qual = 0;
8225 wstats->qual.level = 0;
8226 } else {
8227 if (ipw2100_get_ordinal(priv, IPW_ORD_RSSI_AVG_CURR,
8228 &rssi, &ord_len))
8229 goto fail_get_ordinal;
8230 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8231 if (rssi < 10)
8232 rssi_qual = rssi * POOR / 10;
8233 else if (rssi < 15)
8234 rssi_qual = (rssi - 10) * (FAIR - POOR) / 5 + POOR;
8235 else if (rssi < 20)
8236 rssi_qual = (rssi - 15) * (GOOD - FAIR) / 5 + FAIR;
8237 else if (rssi < 30)
8238 rssi_qual = (rssi - 20) * (VERY_GOOD - GOOD) /
8239 10 + GOOD;
8240 else
8241 rssi_qual = (rssi - 30) * (PERFECT - VERY_GOOD) /
8242 10 + VERY_GOOD;
8243
8244 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_PERCENT_RETRIES,
8245 &tx_retries, &ord_len))
8246 goto fail_get_ordinal;
8247
8248 if (tx_retries > 75)
8249 tx_qual = (90 - tx_retries) * POOR / 15;
8250 else if (tx_retries > 70)
8251 tx_qual = (75 - tx_retries) * (FAIR - POOR) / 5 + POOR;
8252 else if (tx_retries > 65)
8253 tx_qual = (70 - tx_retries) * (GOOD - FAIR) / 5 + FAIR;
8254 else if (tx_retries > 50)
8255 tx_qual = (65 - tx_retries) * (VERY_GOOD - GOOD) /
8256 15 + GOOD;
8257 else
8258 tx_qual = (50 - tx_retries) *
8259 (PERFECT - VERY_GOOD) / 50 + VERY_GOOD;
8260
8261 if (missed_beacons > 50)
8262 beacon_qual = (60 - missed_beacons) * POOR / 10;
8263 else if (missed_beacons > 40)
8264 beacon_qual = (50 - missed_beacons) * (FAIR - POOR) /
8265 10 + POOR;
8266 else if (missed_beacons > 32)
8267 beacon_qual = (40 - missed_beacons) * (GOOD - FAIR) /
8268 18 + FAIR;
8269 else if (missed_beacons > 20)
8270 beacon_qual = (32 - missed_beacons) *
8271 (VERY_GOOD - GOOD) / 20 + GOOD;
8272 else
8273 beacon_qual = (20 - missed_beacons) *
8274 (PERFECT - VERY_GOOD) / 20 + VERY_GOOD;
8275
8276 quality = min(beacon_qual, min(tx_qual, rssi_qual));
8277
8278#ifdef CONFIG_IPW_DEBUG
8279 if (beacon_qual == quality)
8280 IPW_DEBUG_WX("Quality clamped by Missed Beacons\n");
8281 else if (tx_qual == quality)
8282 IPW_DEBUG_WX("Quality clamped by Tx Retries\n");
8283 else if (quality != 100)
8284 IPW_DEBUG_WX("Quality clamped by Signal Strength\n");
8285 else
8286 IPW_DEBUG_WX("Quality not clamped.\n");
8287#endif
8288
8289 wstats->qual.qual = quality;
8290 wstats->qual.level = rssi + IPW2100_RSSI_TO_DBM;
8291 }
8292
8293 wstats->qual.noise = 0;
8294 wstats->qual.updated = 7;
8295 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
8296
8297 /* FIXME: this is percent and not a # */
8298 wstats->miss.beacon = missed_beacons;
8299
8300 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_TX_FAILURES,
8301 &tx_failures, &ord_len))
8302 goto fail_get_ordinal;
8303 wstats->discard.retries = tx_failures;
8304
8305 return wstats;
8306
8307 fail_get_ordinal:
8308 IPW_DEBUG_WX("failed querying ordinals.\n");
8309
8310 return (struct iw_statistics *) NULL;
8311}
8312
8313static void ipw2100_wx_event_work(struct ipw2100_priv *priv)
8314{
8315 union iwreq_data wrqu;
8316 int len = ETH_ALEN;
8317
8318 if (priv->status & STATUS_STOPPING)
8319 return;
8320
8321 down(&priv->action_sem);
8322
8323 IPW_DEBUG_WX("enter\n");
8324
8325 up(&priv->action_sem);
8326
8327 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
8328
8329 /* Fetch BSSID from the hardware */
8330 if (!(priv->status & (STATUS_ASSOCIATING | STATUS_ASSOCIATED)) ||
8331 priv->status & STATUS_RF_KILL_MASK ||
8332 ipw2100_get_ordinal(priv, IPW_ORD_STAT_ASSN_AP_BSSID,
8333 &priv->bssid, &len)) {
8334 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
8335 } else {
8336 /* We now have the BSSID, so can finish setting to the full
8337 * associated state */
8338 memcpy(wrqu.ap_addr.sa_data, priv->bssid, ETH_ALEN);
8339 memcpy(&priv->ieee->bssid, priv->bssid, ETH_ALEN);
8340 priv->status &= ~STATUS_ASSOCIATING;
8341 priv->status |= STATUS_ASSOCIATED;
8342 netif_carrier_on(priv->net_dev);
8343 if (netif_queue_stopped(priv->net_dev)) {
8344 IPW_DEBUG_INFO("Waking net queue.\n");
8345 netif_wake_queue(priv->net_dev);
8346 } else {
8347 IPW_DEBUG_INFO("Starting net queue.\n");
8348 netif_start_queue(priv->net_dev);
8349 }
8350 }
8351
8352 if (!(priv->status & STATUS_ASSOCIATED)) {
8353 IPW_DEBUG_WX("Configuring ESSID\n");
8354 down(&priv->action_sem);
8355 /* This is a disassociation event, so kick the firmware to
8356 * look for another AP */
8357 if (priv->config & CFG_STATIC_ESSID)
8358 ipw2100_set_essid(priv, priv->essid, priv->essid_len, 0);
8359 else
8360 ipw2100_set_essid(priv, NULL, 0, 0);
8361 up(&priv->action_sem);
8362 }
8363
8364 wireless_send_event(priv->net_dev, SIOCGIWAP, &wrqu, NULL);
8365}
8366
8367#define IPW2100_FW_MAJOR_VERSION 1
8368#define IPW2100_FW_MINOR_VERSION 3
8369
8370#define IPW2100_FW_MINOR(x) ((x & 0xff) >> 8)
8371#define IPW2100_FW_MAJOR(x) (x & 0xff)
8372
8373#define IPW2100_FW_VERSION ((IPW2100_FW_MINOR_VERSION << 8) | \
8374 IPW2100_FW_MAJOR_VERSION)
8375
8376#define IPW2100_FW_PREFIX "ipw2100-" __stringify(IPW2100_FW_MAJOR_VERSION) \
8377"." __stringify(IPW2100_FW_MINOR_VERSION)
8378
8379#define IPW2100_FW_NAME(x) IPW2100_FW_PREFIX "" x ".fw"
8380
8381
8382/*
8383
8384BINARY FIRMWARE HEADER FORMAT
8385
8386offset length desc
83870 2 version
83882 2 mode == 0:BSS,1:IBSS,2:MONITOR
83894 4 fw_len
83908 4 uc_len
8391C fw_len firmware data
839212 + fw_len uc_len microcode data
8393
8394*/
8395
8396struct ipw2100_fw_header {
8397 short version;
8398 short mode;
8399 unsigned int fw_size;
8400 unsigned int uc_size;
8401} __attribute__ ((packed));
8402
8403
8404
8405static int ipw2100_mod_firmware_load(struct ipw2100_fw *fw)
8406{
8407 struct ipw2100_fw_header *h =
8408 (struct ipw2100_fw_header *)fw->fw_entry->data;
8409
8410 if (IPW2100_FW_MAJOR(h->version) != IPW2100_FW_MAJOR_VERSION) {
8411 printk(KERN_WARNING DRV_NAME ": Firmware image not compatible "
8412 "(detected version id of %u). "
8413 "See Documentation/networking/README.ipw2100\n",
8414 h->version);
8415 return 1;
8416 }
8417
8418 fw->version = h->version;
8419 fw->fw.data = fw->fw_entry->data + sizeof(struct ipw2100_fw_header);
8420 fw->fw.size = h->fw_size;
8421 fw->uc.data = fw->fw.data + h->fw_size;
8422 fw->uc.size = h->uc_size;
8423
8424 return 0;
8425}
8426
8427
8428static int ipw2100_get_firmware(struct ipw2100_priv *priv,
8429 struct ipw2100_fw *fw)
8430{
8431 char *fw_name;
8432 int rc;
8433
8434 IPW_DEBUG_INFO("%s: Using hotplug firmware load.\n",
8435 priv->net_dev->name);
8436
8437 switch (priv->ieee->iw_mode) {
8438 case IW_MODE_ADHOC:
8439 fw_name = IPW2100_FW_NAME("-i");
8440 break;
8441#ifdef CONFIG_IPW2100_MONITOR
8442 case IW_MODE_MONITOR:
8443 fw_name = IPW2100_FW_NAME("-p");
8444 break;
8445#endif
8446 case IW_MODE_INFRA:
8447 default:
8448 fw_name = IPW2100_FW_NAME("");
8449 break;
8450 }
8451
8452 rc = request_firmware(&fw->fw_entry, fw_name, &priv->pci_dev->dev);
8453
8454 if (rc < 0) {
8455 printk(KERN_ERR DRV_NAME ": "
8456 "%s: Firmware '%s' not available or load failed.\n",
8457 priv->net_dev->name, fw_name);
8458 return rc;
8459 }
8460 IPW_DEBUG_INFO("firmware data %p size %zd\n", fw->fw_entry->data,
8461 fw->fw_entry->size);
8462
8463 ipw2100_mod_firmware_load(fw);
8464
8465 return 0;
8466}
8467
8468static void ipw2100_release_firmware(struct ipw2100_priv *priv,
8469 struct ipw2100_fw *fw)
8470{
8471 fw->version = 0;
8472 if (fw->fw_entry)
8473 release_firmware(fw->fw_entry);
8474 fw->fw_entry = NULL;
8475}
8476
8477
8478static int ipw2100_get_fwversion(struct ipw2100_priv *priv, char *buf,
8479 size_t max)
8480{
8481 char ver[MAX_FW_VERSION_LEN];
8482 u32 len = MAX_FW_VERSION_LEN;
8483 u32 tmp;
8484 int i;
8485 /* firmware version is an ascii string (max len of 14) */
8486 if (ipw2100_get_ordinal(priv, IPW_ORD_STAT_FW_VER_NUM,
8487 ver, &len))
8488 return -EIO;
8489 tmp = max;
8490 if (len >= max)
8491 len = max - 1;
8492 for (i = 0; i < len; i++)
8493 buf[i] = ver[i];
8494 buf[i] = '\0';
8495 return tmp;
8496}
8497
8498static int ipw2100_get_ucodeversion(struct ipw2100_priv *priv, char *buf,
8499 size_t max)
8500{
8501 u32 ver;
8502 u32 len = sizeof(ver);
8503 /* microcode version is a 32 bit integer */
8504 if (ipw2100_get_ordinal(priv, IPW_ORD_UCODE_VERSION,
8505 &ver, &len))
8506 return -EIO;
8507 return snprintf(buf, max, "%08X", ver);
8508}
8509
8510/*
8511 * On exit, the firmware will have been freed from the fw list
8512 */
8513static int ipw2100_fw_download(struct ipw2100_priv *priv,
8514 struct ipw2100_fw *fw)
8515{
8516 /* firmware is constructed of N contiguous entries, each entry is
8517 * structured as:
8518 *
8519 * offset sie desc
8520 * 0 4 address to write to
8521 * 4 2 length of data run
8522 * 6 length data
8523 */
8524 unsigned int addr;
8525 unsigned short len;
8526
8527 const unsigned char *firmware_data = fw->fw.data;
8528 unsigned int firmware_data_left = fw->fw.size;
8529
8530 while (firmware_data_left > 0) {
8531 addr = *(u32 *)(firmware_data);
8532 firmware_data += 4;
8533 firmware_data_left -= 4;
8534
8535 len = *(u16 *)(firmware_data);
8536 firmware_data += 2;
8537 firmware_data_left -= 2;
8538
8539 if (len > 32) {
8540 printk(KERN_ERR DRV_NAME ": "
8541 "Invalid firmware run-length of %d bytes\n",
8542 len);
8543 return -EINVAL;
8544 }
8545
8546 write_nic_memory(priv->net_dev, addr, len, firmware_data);
8547 firmware_data += len;
8548 firmware_data_left -= len;
8549 }
8550
8551 return 0;
8552}
8553
8554struct symbol_alive_response {
8555 u8 cmd_id;
8556 u8 seq_num;
8557 u8 ucode_rev;
8558 u8 eeprom_valid;
8559 u16 valid_flags;
8560 u8 IEEE_addr[6];
8561 u16 flags;
8562 u16 pcb_rev;
8563 u16 clock_settle_time; // 1us LSB
8564 u16 powerup_settle_time; // 1us LSB
8565 u16 hop_settle_time; // 1us LSB
8566 u8 date[3]; // month, day, year
8567 u8 time[2]; // hours, minutes
8568 u8 ucode_valid;
8569};
8570
8571static int ipw2100_ucode_download(struct ipw2100_priv *priv,
8572 struct ipw2100_fw *fw)
8573{
8574 struct net_device *dev = priv->net_dev;
8575 const unsigned char *microcode_data = fw->uc.data;
8576 unsigned int microcode_data_left = fw->uc.size;
8577
8578 struct symbol_alive_response response;
8579 int i, j;
8580 u8 data;
8581
8582 /* Symbol control */
8583 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8584 readl((void *)(dev->base_addr));
8585 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8586 readl((void *)(dev->base_addr));
8587
8588 /* HW config */
8589 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8590 readl((void *)(dev->base_addr));
8591 write_nic_byte(dev, 0x210014, 0x72); /* fifo width =16 */
8592 readl((void *)(dev->base_addr));
8593
8594 /* EN_CS_ACCESS bit to reset control store pointer */
8595 write_nic_byte(dev, 0x210000, 0x40);
8596 readl((void *)(dev->base_addr));
8597 write_nic_byte(dev, 0x210000, 0x0);
8598 readl((void *)(dev->base_addr));
8599 write_nic_byte(dev, 0x210000, 0x40);
8600 readl((void *)(dev->base_addr));
8601
8602 /* copy microcode from buffer into Symbol */
8603
8604 while (microcode_data_left > 0) {
8605 write_nic_byte(dev, 0x210010, *microcode_data++);
8606 write_nic_byte(dev, 0x210010, *microcode_data++);
8607 microcode_data_left -= 2;
8608 }
8609
8610 /* EN_CS_ACCESS bit to reset the control store pointer */
8611 write_nic_byte(dev, 0x210000, 0x0);
8612 readl((void *)(dev->base_addr));
8613
8614 /* Enable System (Reg 0)
8615 * first enable causes garbage in RX FIFO */
8616 write_nic_byte(dev, 0x210000, 0x0);
8617 readl((void *)(dev->base_addr));
8618 write_nic_byte(dev, 0x210000, 0x80);
8619 readl((void *)(dev->base_addr));
8620
8621 /* Reset External Baseband Reg */
8622 write_nic_word(dev, IPW2100_CONTROL_REG, 0x703);
8623 readl((void *)(dev->base_addr));
8624 write_nic_word(dev, IPW2100_CONTROL_REG, 0x707);
8625 readl((void *)(dev->base_addr));
8626
8627 /* HW Config (Reg 5) */
8628 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8629 readl((void *)(dev->base_addr));
8630 write_nic_byte(dev, 0x210014, 0x72); // fifo width =16
8631 readl((void *)(dev->base_addr));
8632
8633 /* Enable System (Reg 0)
8634 * second enable should be OK */
8635 write_nic_byte(dev, 0x210000, 0x00); // clear enable system
8636 readl((void *)(dev->base_addr));
8637 write_nic_byte(dev, 0x210000, 0x80); // set enable system
8638
8639 /* check Symbol is enabled - upped this from 5 as it wasn't always
8640 * catching the update */
8641 for (i = 0; i < 10; i++) {
8642 udelay(10);
8643
8644 /* check Dino is enabled bit */
8645 read_nic_byte(dev, 0x210000, &data);
8646 if (data & 0x1)
8647 break;
8648 }
8649
8650 if (i == 10) {
8651 printk(KERN_ERR DRV_NAME ": %s: Error initializing Symbol\n",
8652 dev->name);
8653 return -EIO;
8654 }
8655
8656 /* Get Symbol alive response */
8657 for (i = 0; i < 30; i++) {
8658 /* Read alive response structure */
8659 for (j = 0;
8660 j < (sizeof(struct symbol_alive_response) >> 1);
8661 j++)
8662 read_nic_word(dev, 0x210004,
8663 ((u16 *)&response) + j);
8664
8665 if ((response.cmd_id == 1) &&
8666 (response.ucode_valid == 0x1))
8667 break;
8668 udelay(10);
8669 }
8670
8671 if (i == 30) {
8672 printk(KERN_ERR DRV_NAME ": %s: No response from Symbol - hw not alive\n",
8673 dev->name);
8674 printk_buf(IPW_DL_ERROR, (u8*)&response, sizeof(response));
8675 return -EIO;
8676 }
8677
8678 return 0;
8679}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 07:48:18 -0500