1 /*
2  * Copyright (c) 2007-2008 Bruno Randolf <bruno@thinktube.com>
3  *
4  *  This file is free software: you may copy, redistribute and/or modify it
5  *  under the terms of the GNU General Public License as published by the
6  *  Free Software Foundation, either version 2 of the License, or (at your
7  *  option) any later version.
8  *
9  *  This file is distributed in the hope that it will be useful, but
10  *  WITHOUT ANY WARRANTY; without even the implied warranty of
11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  *  General Public License for more details.
13  *
14  *  You should have received a copy of the GNU General Public License
15  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  *
17  *
18  * This file incorporates work covered by the following copyright and
19  * permission notice:
20  *
21  * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
22  * Copyright (c) 2004-2005 Atheros Communications, Inc.
23  * Copyright (c) 2006 Devicescape Software, Inc.
24  * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com>
25  * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu>
26  *
27  * All rights reserved.
28  *
29  * Redistribution and use in source and binary forms, with or without
30  * modification, are permitted provided that the following conditions
31  * are met:
32  * 1. Redistributions of source code must retain the above copyright
33  *    notice, this list of conditions and the following disclaimer,
34  *    without modification.
35  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
36  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
37  *    redistribution must be conditioned upon including a substantially
38  *    similar Disclaimer requirement for further binary redistribution.
39  * 3. Neither the names of the above-listed copyright holders nor the names
40  *    of any contributors may be used to endorse or promote products derived
41  *    from this software without specific prior written permission.
42  *
43  * Alternatively, this software may be distributed under the terms of the
44  * GNU General Public License ("GPL") version 2 as published by the Free
45  * Software Foundation.
46  *
47  * NO WARRANTY
48  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
49  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
50  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
51  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
52  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
53  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
54  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
55  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
56  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
57  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
58  * THE POSSIBILITY OF SUCH DAMAGES.
59  */
60 
61 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
62 
63 #include <linux/export.h>
64 #include <linux/moduleparam.h>
65 #include <linux/vmalloc.h>
66 
67 #include <linux/seq_file.h>
68 #include <linux/list.h>
69 #include "debug.h"
70 #include "ath5k.h"
71 #include "reg.h"
72 #include "base.h"
73 
74 static unsigned int ath5k_debug;
75 module_param_named(debug, ath5k_debug, uint, 0);
76 
77 
78 /* debugfs: registers */
79 
80 struct reg {
81 	const char *name;
82 	int addr;
83 };
84 
85 #define REG_STRUCT_INIT(r) { #r, r }
86 
87 /* just a few random registers, might want to add more */
88 static const struct reg regs[] = {
89 	REG_STRUCT_INIT(AR5K_CR),
90 	REG_STRUCT_INIT(AR5K_RXDP),
91 	REG_STRUCT_INIT(AR5K_CFG),
92 	REG_STRUCT_INIT(AR5K_IER),
93 	REG_STRUCT_INIT(AR5K_BCR),
94 	REG_STRUCT_INIT(AR5K_RTSD0),
95 	REG_STRUCT_INIT(AR5K_RTSD1),
96 	REG_STRUCT_INIT(AR5K_TXCFG),
97 	REG_STRUCT_INIT(AR5K_RXCFG),
98 	REG_STRUCT_INIT(AR5K_RXJLA),
99 	REG_STRUCT_INIT(AR5K_MIBC),
100 	REG_STRUCT_INIT(AR5K_TOPS),
101 	REG_STRUCT_INIT(AR5K_RXNOFRM),
102 	REG_STRUCT_INIT(AR5K_TXNOFRM),
103 	REG_STRUCT_INIT(AR5K_RPGTO),
104 	REG_STRUCT_INIT(AR5K_RFCNT),
105 	REG_STRUCT_INIT(AR5K_MISC),
106 	REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
107 	REG_STRUCT_INIT(AR5K_ISR),
108 	REG_STRUCT_INIT(AR5K_PISR),
109 	REG_STRUCT_INIT(AR5K_SISR0),
110 	REG_STRUCT_INIT(AR5K_SISR1),
111 	REG_STRUCT_INIT(AR5K_SISR2),
112 	REG_STRUCT_INIT(AR5K_SISR3),
113 	REG_STRUCT_INIT(AR5K_SISR4),
114 	REG_STRUCT_INIT(AR5K_IMR),
115 	REG_STRUCT_INIT(AR5K_PIMR),
116 	REG_STRUCT_INIT(AR5K_SIMR0),
117 	REG_STRUCT_INIT(AR5K_SIMR1),
118 	REG_STRUCT_INIT(AR5K_SIMR2),
119 	REG_STRUCT_INIT(AR5K_SIMR3),
120 	REG_STRUCT_INIT(AR5K_SIMR4),
121 	REG_STRUCT_INIT(AR5K_DCM_ADDR),
122 	REG_STRUCT_INIT(AR5K_DCCFG),
123 	REG_STRUCT_INIT(AR5K_CCFG),
124 	REG_STRUCT_INIT(AR5K_CPC0),
125 	REG_STRUCT_INIT(AR5K_CPC1),
126 	REG_STRUCT_INIT(AR5K_CPC2),
127 	REG_STRUCT_INIT(AR5K_CPC3),
128 	REG_STRUCT_INIT(AR5K_CPCOVF),
129 	REG_STRUCT_INIT(AR5K_RESET_CTL),
130 	REG_STRUCT_INIT(AR5K_SLEEP_CTL),
131 	REG_STRUCT_INIT(AR5K_INTPEND),
132 	REG_STRUCT_INIT(AR5K_SFR),
133 	REG_STRUCT_INIT(AR5K_PCICFG),
134 	REG_STRUCT_INIT(AR5K_GPIOCR),
135 	REG_STRUCT_INIT(AR5K_GPIODO),
136 	REG_STRUCT_INIT(AR5K_SREV),
137 };
138 
139 static void *reg_start(struct seq_file *seq, loff_t *pos)
140 {
141 	return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
142 }
143 
144 static void reg_stop(struct seq_file *seq, void *p)
145 {
146 	/* nothing to do */
147 }
148 
149 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
150 {
151 	++*pos;
152 	return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
153 }
154 
155 static int reg_show(struct seq_file *seq, void *p)
156 {
157 	struct ath5k_hw *ah = seq->private;
158 	struct reg *r = p;
159 	seq_printf(seq, "%-25s0x%08x\n", r->name,
160 		ath5k_hw_reg_read(ah, r->addr));
161 	return 0;
162 }
163 
164 static const struct seq_operations register_seq_ops = {
165 	.start = reg_start,
166 	.next  = reg_next,
167 	.stop  = reg_stop,
168 	.show  = reg_show
169 };
170 
171 static int open_file_registers(struct inode *inode, struct file *file)
172 {
173 	struct seq_file *s;
174 	int res;
175 	res = seq_open(file, &register_seq_ops);
176 	if (res == 0) {
177 		s = file->private_data;
178 		s->private = inode->i_private;
179 	}
180 	return res;
181 }
182 
183 static const struct file_operations fops_registers = {
184 	.open = open_file_registers,
185 	.read    = seq_read,
186 	.llseek  = seq_lseek,
187 	.release = seq_release,
188 	.owner = THIS_MODULE,
189 };
190 
191 
192 /* debugfs: beacons */
193 
194 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
195 				   size_t count, loff_t *ppos)
196 {
197 	struct ath5k_hw *ah = file->private_data;
198 	char buf[500];
199 	unsigned int len = 0;
200 	unsigned int v;
201 	u64 tsf;
202 
203 	v = ath5k_hw_reg_read(ah, AR5K_BEACON);
204 	len += scnprintf(buf + len, sizeof(buf) - len,
205 		"%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
206 		"AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
207 		(v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
208 
209 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
210 		"AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
211 
212 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
213 		"AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
214 
215 	v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
216 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
217 		"AR5K_TIMER0 (TBTT)", v, v);
218 
219 	v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
220 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
221 		"AR5K_TIMER1 (DMA)", v, v >> 3);
222 
223 	v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
224 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
225 		"AR5K_TIMER2 (SWBA)", v, v >> 3);
226 
227 	v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
228 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
229 		"AR5K_TIMER3 (ATIM)", v, v);
230 
231 	tsf = ath5k_hw_get_tsf64(ah);
232 	len += scnprintf(buf + len, sizeof(buf) - len,
233 		"TSF\t\t0x%016llx\tTU: %08x\n",
234 		(unsigned long long)tsf, TSF_TO_TU(tsf));
235 
236 	if (len > sizeof(buf))
237 		len = sizeof(buf);
238 
239 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
240 }
241 
242 static ssize_t write_file_beacon(struct file *file,
243 				 const char __user *userbuf,
244 				 size_t count, loff_t *ppos)
245 {
246 	struct ath5k_hw *ah = file->private_data;
247 	char buf[20];
248 
249 	count = min_t(size_t, count, sizeof(buf) - 1);
250 	if (copy_from_user(buf, userbuf, count))
251 		return -EFAULT;
252 
253 	buf[count] = '\0';
254 	if (strncmp(buf, "disable", 7) == 0) {
255 		AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
256 		pr_info("debugfs disable beacons\n");
257 	} else if (strncmp(buf, "enable", 6) == 0) {
258 		AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
259 		pr_info("debugfs enable beacons\n");
260 	}
261 	return count;
262 }
263 
264 static const struct file_operations fops_beacon = {
265 	.read = read_file_beacon,
266 	.write = write_file_beacon,
267 	.open = simple_open,
268 	.owner = THIS_MODULE,
269 	.llseek = default_llseek,
270 };
271 
272 
273 /* debugfs: reset */
274 
275 static ssize_t write_file_reset(struct file *file,
276 				 const char __user *userbuf,
277 				 size_t count, loff_t *ppos)
278 {
279 	struct ath5k_hw *ah = file->private_data;
280 	ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
281 	ieee80211_queue_work(ah->hw, &ah->reset_work);
282 	return count;
283 }
284 
285 static const struct file_operations fops_reset = {
286 	.write = write_file_reset,
287 	.open = simple_open,
288 	.owner = THIS_MODULE,
289 	.llseek = noop_llseek,
290 };
291 
292 
293 /* debugfs: debug level */
294 
295 static const struct {
296 	enum ath5k_debug_level level;
297 	const char *name;
298 	const char *desc;
299 } dbg_info[] = {
300 	{ ATH5K_DEBUG_RESET,	"reset",	"reset and initialization" },
301 	{ ATH5K_DEBUG_INTR,	"intr",		"interrupt handling" },
302 	{ ATH5K_DEBUG_MODE,	"mode",		"mode init/setup" },
303 	{ ATH5K_DEBUG_XMIT,	"xmit",		"basic xmit operation" },
304 	{ ATH5K_DEBUG_BEACON,	"beacon",	"beacon handling" },
305 	{ ATH5K_DEBUG_CALIBRATE, "calib",	"periodic calibration" },
306 	{ ATH5K_DEBUG_TXPOWER,	"txpower",	"transmit power setting" },
307 	{ ATH5K_DEBUG_LED,	"led",		"LED management" },
308 	{ ATH5K_DEBUG_DUMPBANDS, "dumpbands",	"dump bands" },
309 	{ ATH5K_DEBUG_DMA,	"dma",		"dma start/stop" },
310 	{ ATH5K_DEBUG_ANI,	"ani",		"adaptive noise immunity" },
311 	{ ATH5K_DEBUG_DESC,	"desc",		"descriptor chains" },
312 	{ ATH5K_DEBUG_ANY,	"all",		"show all debug levels" },
313 };
314 
315 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
316 				   size_t count, loff_t *ppos)
317 {
318 	struct ath5k_hw *ah = file->private_data;
319 	char buf[700];
320 	unsigned int len = 0;
321 	unsigned int i;
322 
323 	len += scnprintf(buf + len, sizeof(buf) - len,
324 		"DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
325 
326 	for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
327 		len += scnprintf(buf + len, sizeof(buf) - len,
328 			"%10s %c 0x%08x - %s\n", dbg_info[i].name,
329 			ah->debug.level & dbg_info[i].level ? '+' : ' ',
330 			dbg_info[i].level, dbg_info[i].desc);
331 	}
332 	len += scnprintf(buf + len, sizeof(buf) - len,
333 		"%10s %c 0x%08x - %s\n", dbg_info[i].name,
334 		ah->debug.level == dbg_info[i].level ? '+' : ' ',
335 		dbg_info[i].level, dbg_info[i].desc);
336 
337 	if (len > sizeof(buf))
338 		len = sizeof(buf);
339 
340 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
341 }
342 
343 static ssize_t write_file_debug(struct file *file,
344 				 const char __user *userbuf,
345 				 size_t count, loff_t *ppos)
346 {
347 	struct ath5k_hw *ah = file->private_data;
348 	unsigned int i;
349 	char buf[20];
350 
351 	count = min_t(size_t, count, sizeof(buf) - 1);
352 	if (copy_from_user(buf, userbuf, count))
353 		return -EFAULT;
354 
355 	buf[count] = '\0';
356 	for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
357 		if (strncmp(buf, dbg_info[i].name,
358 					strlen(dbg_info[i].name)) == 0) {
359 			ah->debug.level ^= dbg_info[i].level; /* toggle bit */
360 			break;
361 		}
362 	}
363 	return count;
364 }
365 
366 static const struct file_operations fops_debug = {
367 	.read = read_file_debug,
368 	.write = write_file_debug,
369 	.open = simple_open,
370 	.owner = THIS_MODULE,
371 	.llseek = default_llseek,
372 };
373 
374 
375 /* debugfs: antenna */
376 
377 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
378 				   size_t count, loff_t *ppos)
379 {
380 	struct ath5k_hw *ah = file->private_data;
381 	char buf[700];
382 	unsigned int len = 0;
383 	unsigned int i;
384 	unsigned int v;
385 
386 	len += scnprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
387 		ah->ah_ant_mode);
388 	len += scnprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
389 		ah->ah_def_ant);
390 	len += scnprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
391 		ah->ah_tx_ant);
392 
393 	len += scnprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
394 	for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
395 		len += scnprintf(buf + len, sizeof(buf) - len,
396 			"[antenna %d]\t%d\t%d\n",
397 			i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
398 	}
399 	len += scnprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
400 			ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
401 
402 	v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
403 	len += scnprintf(buf + len, sizeof(buf) - len,
404 			"\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
405 
406 	v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
407 	len += scnprintf(buf + len, sizeof(buf) - len,
408 		"AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
409 		(v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
410 	len += scnprintf(buf + len, sizeof(buf) - len,
411 		"AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
412 		(v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
413 	len += scnprintf(buf + len, sizeof(buf) - len,
414 		"AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
415 		(v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
416 	len += scnprintf(buf + len, sizeof(buf) - len,
417 		"AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
418 		(v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
419 
420 	v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
421 	len += scnprintf(buf + len, sizeof(buf) - len,
422 		"\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
423 		(v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
424 
425 	v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
426 	len += scnprintf(buf + len, sizeof(buf) - len,
427 		"AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
428 		(v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
429 
430 	v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
431 	len += scnprintf(buf + len, sizeof(buf) - len,
432 		"AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
433 		(v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
434 
435 	v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
436 	len += scnprintf(buf + len, sizeof(buf) - len,
437 			"\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
438 	v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
439 	len += scnprintf(buf + len, sizeof(buf) - len,
440 			"AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
441 
442 	if (len > sizeof(buf))
443 		len = sizeof(buf);
444 
445 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
446 }
447 
448 static ssize_t write_file_antenna(struct file *file,
449 				 const char __user *userbuf,
450 				 size_t count, loff_t *ppos)
451 {
452 	struct ath5k_hw *ah = file->private_data;
453 	unsigned int i;
454 	char buf[20];
455 
456 	count = min_t(size_t, count, sizeof(buf) - 1);
457 	if (copy_from_user(buf, userbuf, count))
458 		return -EFAULT;
459 
460 	buf[count] = '\0';
461 	if (strncmp(buf, "diversity", 9) == 0) {
462 		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
463 		pr_info("debug: enable diversity\n");
464 	} else if (strncmp(buf, "fixed-a", 7) == 0) {
465 		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
466 		pr_info("debug: fixed antenna A\n");
467 	} else if (strncmp(buf, "fixed-b", 7) == 0) {
468 		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
469 		pr_info("debug: fixed antenna B\n");
470 	} else if (strncmp(buf, "clear", 5) == 0) {
471 		for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
472 			ah->stats.antenna_rx[i] = 0;
473 			ah->stats.antenna_tx[i] = 0;
474 		}
475 		pr_info("debug: cleared antenna stats\n");
476 	}
477 	return count;
478 }
479 
480 static const struct file_operations fops_antenna = {
481 	.read = read_file_antenna,
482 	.write = write_file_antenna,
483 	.open = simple_open,
484 	.owner = THIS_MODULE,
485 	.llseek = default_llseek,
486 };
487 
488 /* debugfs: misc */
489 
490 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
491 				   size_t count, loff_t *ppos)
492 {
493 	struct ath5k_hw *ah = file->private_data;
494 	char buf[700];
495 	unsigned int len = 0;
496 	u32 filt = ath5k_hw_get_rx_filter(ah);
497 
498 	len += scnprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
499 			ah->bssidmask);
500 	len += scnprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
501 			filt);
502 	if (filt & AR5K_RX_FILTER_UCAST)
503 		len += scnprintf(buf + len, sizeof(buf) - len, " UCAST");
504 	if (filt & AR5K_RX_FILTER_MCAST)
505 		len += scnprintf(buf + len, sizeof(buf) - len, " MCAST");
506 	if (filt & AR5K_RX_FILTER_BCAST)
507 		len += scnprintf(buf + len, sizeof(buf) - len, " BCAST");
508 	if (filt & AR5K_RX_FILTER_CONTROL)
509 		len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL");
510 	if (filt & AR5K_RX_FILTER_BEACON)
511 		len += scnprintf(buf + len, sizeof(buf) - len, " BEACON");
512 	if (filt & AR5K_RX_FILTER_PROM)
513 		len += scnprintf(buf + len, sizeof(buf) - len, " PROM");
514 	if (filt & AR5K_RX_FILTER_XRPOLL)
515 		len += scnprintf(buf + len, sizeof(buf) - len, " XRPOLL");
516 	if (filt & AR5K_RX_FILTER_PROBEREQ)
517 		len += scnprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
518 	if (filt & AR5K_RX_FILTER_PHYERR_5212)
519 		len += scnprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
520 	if (filt & AR5K_RX_FILTER_RADARERR_5212)
521 		len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
522 	if (filt & AR5K_RX_FILTER_PHYERR_5211)
523 		snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
524 	if (filt & AR5K_RX_FILTER_RADARERR_5211)
525 		len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
526 
527 	len += scnprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
528 			ath_opmode_to_string(ah->opmode), ah->opmode);
529 
530 	if (len > sizeof(buf))
531 		len = sizeof(buf);
532 
533 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
534 }
535 
536 static const struct file_operations fops_misc = {
537 	.read = read_file_misc,
538 	.open = simple_open,
539 	.owner = THIS_MODULE,
540 };
541 
542 
543 /* debugfs: frameerrors */
544 
545 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
546 				   size_t count, loff_t *ppos)
547 {
548 	struct ath5k_hw *ah = file->private_data;
549 	struct ath5k_statistics *st = &ah->stats;
550 	char buf[700];
551 	unsigned int len = 0;
552 	int i;
553 
554 	len += scnprintf(buf + len, sizeof(buf) - len,
555 			"RX\n---------------------\n");
556 	len += scnprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
557 			st->rxerr_crc,
558 			st->rx_all_count > 0 ?
559 				st->rxerr_crc * 100 / st->rx_all_count : 0);
560 	len += scnprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
561 			st->rxerr_phy,
562 			st->rx_all_count > 0 ?
563 				st->rxerr_phy * 100 / st->rx_all_count : 0);
564 	for (i = 0; i < 32; i++) {
565 		if (st->rxerr_phy_code[i])
566 			len += scnprintf(buf + len, sizeof(buf) - len,
567 				" phy_err[%u]\t%u\n",
568 				i, st->rxerr_phy_code[i]);
569 	}
570 
571 	len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
572 			st->rxerr_fifo,
573 			st->rx_all_count > 0 ?
574 				st->rxerr_fifo * 100 / st->rx_all_count : 0);
575 	len += scnprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
576 			st->rxerr_decrypt,
577 			st->rx_all_count > 0 ?
578 				st->rxerr_decrypt * 100 / st->rx_all_count : 0);
579 	len += scnprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
580 			st->rxerr_mic,
581 			st->rx_all_count > 0 ?
582 				st->rxerr_mic * 100 / st->rx_all_count : 0);
583 	len += scnprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
584 			st->rxerr_proc,
585 			st->rx_all_count > 0 ?
586 				st->rxerr_proc * 100 / st->rx_all_count : 0);
587 	len += scnprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
588 			st->rxerr_jumbo,
589 			st->rx_all_count > 0 ?
590 				st->rxerr_jumbo * 100 / st->rx_all_count : 0);
591 	len += scnprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
592 			st->rx_all_count);
593 	len += scnprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
594 			st->rx_bytes_count);
595 
596 	len += scnprintf(buf + len, sizeof(buf) - len,
597 			"\nTX\n---------------------\n");
598 	len += scnprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
599 			st->txerr_retry,
600 			st->tx_all_count > 0 ?
601 				st->txerr_retry * 100 / st->tx_all_count : 0);
602 	len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
603 			st->txerr_fifo,
604 			st->tx_all_count > 0 ?
605 				st->txerr_fifo * 100 / st->tx_all_count : 0);
606 	len += scnprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
607 			st->txerr_filt,
608 			st->tx_all_count > 0 ?
609 				st->txerr_filt * 100 / st->tx_all_count : 0);
610 	len += scnprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
611 			st->tx_all_count);
612 	len += scnprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
613 			st->tx_bytes_count);
614 
615 	if (len > sizeof(buf))
616 		len = sizeof(buf);
617 
618 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
619 }
620 
621 static ssize_t write_file_frameerrors(struct file *file,
622 				 const char __user *userbuf,
623 				 size_t count, loff_t *ppos)
624 {
625 	struct ath5k_hw *ah = file->private_data;
626 	struct ath5k_statistics *st = &ah->stats;
627 	char buf[20];
628 
629 	count = min_t(size_t, count, sizeof(buf) - 1);
630 	if (copy_from_user(buf, userbuf, count))
631 		return -EFAULT;
632 
633 	buf[count] = '\0';
634 	if (strncmp(buf, "clear", 5) == 0) {
635 		st->rxerr_crc = 0;
636 		st->rxerr_phy = 0;
637 		st->rxerr_fifo = 0;
638 		st->rxerr_decrypt = 0;
639 		st->rxerr_mic = 0;
640 		st->rxerr_proc = 0;
641 		st->rxerr_jumbo = 0;
642 		st->rx_all_count = 0;
643 		st->txerr_retry = 0;
644 		st->txerr_fifo = 0;
645 		st->txerr_filt = 0;
646 		st->tx_all_count = 0;
647 		pr_info("debug: cleared frameerrors stats\n");
648 	}
649 	return count;
650 }
651 
652 static const struct file_operations fops_frameerrors = {
653 	.read = read_file_frameerrors,
654 	.write = write_file_frameerrors,
655 	.open = simple_open,
656 	.owner = THIS_MODULE,
657 	.llseek = default_llseek,
658 };
659 
660 
661 /* debugfs: ani */
662 
663 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
664 				   size_t count, loff_t *ppos)
665 {
666 	struct ath5k_hw *ah = file->private_data;
667 	struct ath5k_statistics *st = &ah->stats;
668 	struct ath5k_ani_state *as = &ah->ani_state;
669 
670 	char buf[700];
671 	unsigned int len = 0;
672 
673 	len += scnprintf(buf + len, sizeof(buf) - len,
674 			"HW has PHY error counters:\t%s\n",
675 			ah->ah_capabilities.cap_has_phyerr_counters ?
676 			"yes" : "no");
677 	len += scnprintf(buf + len, sizeof(buf) - len,
678 			"HW max spur immunity level:\t%d\n",
679 			as->max_spur_level);
680 	len += scnprintf(buf + len, sizeof(buf) - len,
681 		"\nANI state\n--------------------------------------------\n");
682 	len += scnprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
683 	switch (as->ani_mode) {
684 	case ATH5K_ANI_MODE_OFF:
685 		len += scnprintf(buf + len, sizeof(buf) - len, "OFF\n");
686 		break;
687 	case ATH5K_ANI_MODE_MANUAL_LOW:
688 		len += scnprintf(buf + len, sizeof(buf) - len,
689 			"MANUAL LOW\n");
690 		break;
691 	case ATH5K_ANI_MODE_MANUAL_HIGH:
692 		len += scnprintf(buf + len, sizeof(buf) - len,
693 			"MANUAL HIGH\n");
694 		break;
695 	case ATH5K_ANI_MODE_AUTO:
696 		len += scnprintf(buf + len, sizeof(buf) - len, "AUTO\n");
697 		break;
698 	default:
699 		len += scnprintf(buf + len, sizeof(buf) - len,
700 			"??? (not good)\n");
701 		break;
702 	}
703 	len += scnprintf(buf + len, sizeof(buf) - len,
704 			"noise immunity level:\t\t%d\n",
705 			as->noise_imm_level);
706 	len += scnprintf(buf + len, sizeof(buf) - len,
707 			"spur immunity level:\t\t%d\n",
708 			as->spur_level);
709 	len += scnprintf(buf + len, sizeof(buf) - len,
710 			"firstep level:\t\t\t%d\n",
711 			as->firstep_level);
712 	len += scnprintf(buf + len, sizeof(buf) - len,
713 			"OFDM weak signal detection:\t%s\n",
714 			as->ofdm_weak_sig ? "on" : "off");
715 	len += scnprintf(buf + len, sizeof(buf) - len,
716 			"CCK weak signal detection:\t%s\n",
717 			as->cck_weak_sig ? "on" : "off");
718 
719 	len += scnprintf(buf + len, sizeof(buf) - len,
720 			"\nMIB INTERRUPTS:\t\t%u\n",
721 			st->mib_intr);
722 	len += scnprintf(buf + len, sizeof(buf) - len,
723 			"beacon RSSI average:\t%d\n",
724 			(int)ewma_beacon_rssi_read(&ah->ah_beacon_rssi_avg));
725 
726 #define CC_PRINT(_struct, _field) \
727 	_struct._field, \
728 	_struct.cycles > 0 ? \
729 	_struct._field * 100 / _struct.cycles : 0
730 
731 	len += scnprintf(buf + len, sizeof(buf) - len,
732 			"profcnt tx\t\t%u\t(%d%%)\n",
733 			CC_PRINT(as->last_cc, tx_frame));
734 	len += scnprintf(buf + len, sizeof(buf) - len,
735 			"profcnt rx\t\t%u\t(%d%%)\n",
736 			CC_PRINT(as->last_cc, rx_frame));
737 	len += scnprintf(buf + len, sizeof(buf) - len,
738 			"profcnt busy\t\t%u\t(%d%%)\n",
739 			CC_PRINT(as->last_cc, rx_busy));
740 #undef CC_PRINT
741 	len += scnprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
742 			as->last_cc.cycles);
743 	len += scnprintf(buf + len, sizeof(buf) - len,
744 			"listen time\t\t%d\tlast: %d\n",
745 			as->listen_time, as->last_listen);
746 	len += scnprintf(buf + len, sizeof(buf) - len,
747 			"OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
748 			as->ofdm_errors, as->last_ofdm_errors,
749 			as->sum_ofdm_errors);
750 	len += scnprintf(buf + len, sizeof(buf) - len,
751 			"CCK errors\t\t%u\tlast: %u\tsum: %u\n",
752 			as->cck_errors, as->last_cck_errors,
753 			as->sum_cck_errors);
754 	len += scnprintf(buf + len, sizeof(buf) - len,
755 			"AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
756 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
757 			ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
758 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
759 	len += scnprintf(buf + len, sizeof(buf) - len,
760 			"AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
761 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
762 			ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
763 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
764 
765 	if (len > sizeof(buf))
766 		len = sizeof(buf);
767 
768 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
769 }
770 
771 static ssize_t write_file_ani(struct file *file,
772 				 const char __user *userbuf,
773 				 size_t count, loff_t *ppos)
774 {
775 	struct ath5k_hw *ah = file->private_data;
776 	char buf[20];
777 
778 	count = min_t(size_t, count, sizeof(buf) - 1);
779 	if (copy_from_user(buf, userbuf, count))
780 		return -EFAULT;
781 
782 	buf[count] = '\0';
783 	if (strncmp(buf, "sens-low", 8) == 0) {
784 		ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
785 	} else if (strncmp(buf, "sens-high", 9) == 0) {
786 		ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
787 	} else if (strncmp(buf, "ani-off", 7) == 0) {
788 		ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
789 	} else if (strncmp(buf, "ani-on", 6) == 0) {
790 		ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
791 	} else if (strncmp(buf, "noise-low", 9) == 0) {
792 		ath5k_ani_set_noise_immunity_level(ah, 0);
793 	} else if (strncmp(buf, "noise-high", 10) == 0) {
794 		ath5k_ani_set_noise_immunity_level(ah,
795 						   ATH5K_ANI_MAX_NOISE_IMM_LVL);
796 	} else if (strncmp(buf, "spur-low", 8) == 0) {
797 		ath5k_ani_set_spur_immunity_level(ah, 0);
798 	} else if (strncmp(buf, "spur-high", 9) == 0) {
799 		ath5k_ani_set_spur_immunity_level(ah,
800 						  ah->ani_state.max_spur_level);
801 	} else if (strncmp(buf, "fir-low", 7) == 0) {
802 		ath5k_ani_set_firstep_level(ah, 0);
803 	} else if (strncmp(buf, "fir-high", 8) == 0) {
804 		ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
805 	} else if (strncmp(buf, "ofdm-off", 8) == 0) {
806 		ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
807 	} else if (strncmp(buf, "ofdm-on", 7) == 0) {
808 		ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
809 	} else if (strncmp(buf, "cck-off", 7) == 0) {
810 		ath5k_ani_set_cck_weak_signal_detection(ah, false);
811 	} else if (strncmp(buf, "cck-on", 6) == 0) {
812 		ath5k_ani_set_cck_weak_signal_detection(ah, true);
813 	}
814 	return count;
815 }
816 
817 static const struct file_operations fops_ani = {
818 	.read = read_file_ani,
819 	.write = write_file_ani,
820 	.open = simple_open,
821 	.owner = THIS_MODULE,
822 	.llseek = default_llseek,
823 };
824 
825 
826 /* debugfs: queues etc */
827 
828 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
829 				   size_t count, loff_t *ppos)
830 {
831 	struct ath5k_hw *ah = file->private_data;
832 	char buf[700];
833 	unsigned int len = 0;
834 
835 	struct ath5k_txq *txq;
836 	struct ath5k_buf *bf, *bf0;
837 	int i, n;
838 
839 	len += scnprintf(buf + len, sizeof(buf) - len,
840 			"available txbuffers: %d\n", ah->txbuf_len);
841 
842 	for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
843 		txq = &ah->txqs[i];
844 
845 		len += scnprintf(buf + len, sizeof(buf) - len,
846 			"%02d: %ssetup\n", i, txq->setup ? "" : "not ");
847 
848 		if (!txq->setup)
849 			continue;
850 
851 		n = 0;
852 		spin_lock_bh(&txq->lock);
853 		list_for_each_entry_safe(bf, bf0, &txq->q, list)
854 			n++;
855 		spin_unlock_bh(&txq->lock);
856 
857 		len += scnprintf(buf + len, sizeof(buf) - len,
858 				"  len: %d bufs: %d\n", txq->txq_len, n);
859 		len += scnprintf(buf + len, sizeof(buf) - len,
860 				"  stuck: %d\n", txq->txq_stuck);
861 	}
862 
863 	if (len > sizeof(buf))
864 		len = sizeof(buf);
865 
866 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
867 }
868 
869 static ssize_t write_file_queue(struct file *file,
870 				 const char __user *userbuf,
871 				 size_t count, loff_t *ppos)
872 {
873 	struct ath5k_hw *ah = file->private_data;
874 	char buf[20];
875 
876 	count = min_t(size_t, count, sizeof(buf) - 1);
877 	if (copy_from_user(buf, userbuf, count))
878 		return -EFAULT;
879 
880 	buf[count] = '\0';
881 	if (strncmp(buf, "start", 5) == 0)
882 		ieee80211_wake_queues(ah->hw);
883 	else if (strncmp(buf, "stop", 4) == 0)
884 		ieee80211_stop_queues(ah->hw);
885 
886 	return count;
887 }
888 
889 
890 static const struct file_operations fops_queue = {
891 	.read = read_file_queue,
892 	.write = write_file_queue,
893 	.open = simple_open,
894 	.owner = THIS_MODULE,
895 	.llseek = default_llseek,
896 };
897 
898 /* debugfs: eeprom */
899 
900 struct eeprom_private {
901 	u16 *buf;
902 	int len;
903 };
904 
905 static int open_file_eeprom(struct inode *inode, struct file *file)
906 {
907 	struct eeprom_private *ep;
908 	struct ath5k_hw *ah = inode->i_private;
909 	bool res;
910 	int i, ret;
911 	u32 eesize;	/* NB: in 16-bit words */
912 	u16 val, *buf;
913 
914 	/* Get eeprom size */
915 
916 	res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val);
917 	if (!res)
918 		return -EACCES;
919 
920 	if (val == 0) {
921 		eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE;
922 	} else {
923 		eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) <<
924 			AR5K_EEPROM_SIZE_ENDLOC_SHIFT;
925 		ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val);
926 		eesize = eesize | val;
927 	}
928 
929 	if (eesize > 4096)
930 		return -EINVAL;
931 
932 	/* Create buffer and read in eeprom */
933 
934 	buf = vmalloc(array_size(eesize, 2));
935 	if (!buf) {
936 		ret = -ENOMEM;
937 		goto err;
938 	}
939 
940 	for (i = 0; i < eesize; ++i) {
941 		if (!ath5k_hw_nvram_read(ah, i, &val)) {
942 			ret = -EIO;
943 			goto freebuf;
944 		}
945 		buf[i] = val;
946 	}
947 
948 	/* Create private struct and assign to file */
949 
950 	ep = kmalloc(sizeof(*ep), GFP_KERNEL);
951 	if (!ep) {
952 		ret = -ENOMEM;
953 		goto freebuf;
954 	}
955 
956 	ep->buf = buf;
957 	ep->len = eesize * 2;
958 
959 	file->private_data = (void *)ep;
960 
961 	return 0;
962 
963 freebuf:
964 	vfree(buf);
965 err:
966 	return ret;
967 
968 }
969 
970 static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
971 				   size_t count, loff_t *ppos)
972 {
973 	struct eeprom_private *ep = file->private_data;
974 
975 	return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len);
976 }
977 
978 static int release_file_eeprom(struct inode *inode, struct file *file)
979 {
980 	struct eeprom_private *ep = file->private_data;
981 
982 	vfree(ep->buf);
983 	kfree(ep);
984 
985 	return 0;
986 }
987 
988 static const struct file_operations fops_eeprom = {
989 	.open = open_file_eeprom,
990 	.read = read_file_eeprom,
991 	.release = release_file_eeprom,
992 	.owner = THIS_MODULE,
993 };
994 
995 
996 void
997 ath5k_debug_init_device(struct ath5k_hw *ah)
998 {
999 	struct dentry *phydir;
1000 
1001 	ah->debug.level = ath5k_debug;
1002 
1003 	phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
1004 	if (!phydir)
1005 		return;
1006 
1007 	debugfs_create_file("debug", 0600, phydir, ah, &fops_debug);
1008 	debugfs_create_file("registers", 0400, phydir, ah, &fops_registers);
1009 	debugfs_create_file("beacon", 0600, phydir, ah, &fops_beacon);
1010 	debugfs_create_file("reset", 0200, phydir, ah, &fops_reset);
1011 	debugfs_create_file("antenna", 0600, phydir, ah, &fops_antenna);
1012 	debugfs_create_file("misc", 0400, phydir, ah, &fops_misc);
1013 	debugfs_create_file("eeprom", 0400, phydir, ah, &fops_eeprom);
1014 	debugfs_create_file("frameerrors", 0600, phydir, ah, &fops_frameerrors);
1015 	debugfs_create_file("ani", 0600, phydir, ah, &fops_ani);
1016 	debugfs_create_file("queue", 0600, phydir, ah, &fops_queue);
1017 	debugfs_create_bool("32khz_clock", 0600, phydir,
1018 			    &ah->ah_use_32khz_clock);
1019 }
1020 
1021 /* functions used in other places */
1022 
1023 void
1024 ath5k_debug_dump_bands(struct ath5k_hw *ah)
1025 {
1026 	unsigned int b, i;
1027 
1028 	if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
1029 		return;
1030 
1031 	for (b = 0; b < NUM_NL80211_BANDS; b++) {
1032 		struct ieee80211_supported_band *band = &ah->sbands[b];
1033 		char bname[6];
1034 		switch (band->band) {
1035 		case NL80211_BAND_2GHZ:
1036 			strcpy(bname, "2 GHz");
1037 			break;
1038 		case NL80211_BAND_5GHZ:
1039 			strcpy(bname, "5 GHz");
1040 			break;
1041 		default:
1042 			printk(KERN_DEBUG "Band not supported: %d\n",
1043 				band->band);
1044 			return;
1045 		}
1046 		printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
1047 				band->n_channels, band->n_bitrates);
1048 		printk(KERN_DEBUG " channels:\n");
1049 		for (i = 0; i < band->n_channels; i++)
1050 			printk(KERN_DEBUG "  %3d %d %.4x %.4x\n",
1051 					ieee80211_frequency_to_channel(
1052 						band->channels[i].center_freq),
1053 					band->channels[i].center_freq,
1054 					band->channels[i].hw_value,
1055 					band->channels[i].flags);
1056 		printk(KERN_DEBUG " rates:\n");
1057 		for (i = 0; i < band->n_bitrates; i++)
1058 			printk(KERN_DEBUG "  %4d %.4x %.4x %.4x\n",
1059 					band->bitrates[i].bitrate,
1060 					band->bitrates[i].hw_value,
1061 					band->bitrates[i].flags,
1062 					band->bitrates[i].hw_value_short);
1063 	}
1064 }
1065 
1066 static inline void
1067 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
1068 		       struct ath5k_rx_status *rs)
1069 {
1070 	struct ath5k_desc *ds = bf->desc;
1071 	struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
1072 
1073 	printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1074 		ds, (unsigned long long)bf->daddr,
1075 		ds->ds_link, ds->ds_data,
1076 		rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
1077 		rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
1078 		!done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
1079 }
1080 
1081 void
1082 ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
1083 {
1084 	struct ath5k_desc *ds;
1085 	struct ath5k_buf *bf;
1086 	struct ath5k_rx_status rs = {};
1087 	int status;
1088 
1089 	if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1090 		return;
1091 
1092 	printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1093 		ath5k_hw_get_rxdp(ah), ah->rxlink);
1094 
1095 	spin_lock_bh(&ah->rxbuflock);
1096 	list_for_each_entry(bf, &ah->rxbuf, list) {
1097 		ds = bf->desc;
1098 		status = ah->ah_proc_rx_desc(ah, ds, &rs);
1099 		if (!status)
1100 			ath5k_debug_printrxbuf(bf, status == 0, &rs);
1101 	}
1102 	spin_unlock_bh(&ah->rxbuflock);
1103 }
1104 
1105 void
1106 ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1107 {
1108 	struct ath5k_desc *ds = bf->desc;
1109 	struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1110 	struct ath5k_tx_status ts = {};
1111 	int done;
1112 
1113 	if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1114 		return;
1115 
1116 	done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1117 
1118 	printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1119 		"%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1120 		ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1121 		td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1122 		td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1123 		done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1124 }
1125