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 #include "base.h"
62 #include "debug.h"
63 #include "../debug.h"
64 
65 static unsigned int ath5k_debug;
66 module_param_named(debug, ath5k_debug, uint, 0);
67 
68 
69 #ifdef CONFIG_ATH5K_DEBUG
70 
71 #include <linux/seq_file.h>
72 #include "reg.h"
73 #include "ani.h"
74 
75 static int ath5k_debugfs_open(struct inode *inode, struct file *file)
76 {
77 	file->private_data = inode->i_private;
78 	return 0;
79 }
80 
81 
82 /* debugfs: registers */
83 
84 struct reg {
85 	const char *name;
86 	int addr;
87 };
88 
89 #define REG_STRUCT_INIT(r) { #r, r }
90 
91 /* just a few random registers, might want to add more */
92 static const struct reg regs[] = {
93 	REG_STRUCT_INIT(AR5K_CR),
94 	REG_STRUCT_INIT(AR5K_RXDP),
95 	REG_STRUCT_INIT(AR5K_CFG),
96 	REG_STRUCT_INIT(AR5K_IER),
97 	REG_STRUCT_INIT(AR5K_BCR),
98 	REG_STRUCT_INIT(AR5K_RTSD0),
99 	REG_STRUCT_INIT(AR5K_RTSD1),
100 	REG_STRUCT_INIT(AR5K_TXCFG),
101 	REG_STRUCT_INIT(AR5K_RXCFG),
102 	REG_STRUCT_INIT(AR5K_RXJLA),
103 	REG_STRUCT_INIT(AR5K_MIBC),
104 	REG_STRUCT_INIT(AR5K_TOPS),
105 	REG_STRUCT_INIT(AR5K_RXNOFRM),
106 	REG_STRUCT_INIT(AR5K_TXNOFRM),
107 	REG_STRUCT_INIT(AR5K_RPGTO),
108 	REG_STRUCT_INIT(AR5K_RFCNT),
109 	REG_STRUCT_INIT(AR5K_MISC),
110 	REG_STRUCT_INIT(AR5K_QCUDCU_CLKGT),
111 	REG_STRUCT_INIT(AR5K_ISR),
112 	REG_STRUCT_INIT(AR5K_PISR),
113 	REG_STRUCT_INIT(AR5K_SISR0),
114 	REG_STRUCT_INIT(AR5K_SISR1),
115 	REG_STRUCT_INIT(AR5K_SISR2),
116 	REG_STRUCT_INIT(AR5K_SISR3),
117 	REG_STRUCT_INIT(AR5K_SISR4),
118 	REG_STRUCT_INIT(AR5K_IMR),
119 	REG_STRUCT_INIT(AR5K_PIMR),
120 	REG_STRUCT_INIT(AR5K_SIMR0),
121 	REG_STRUCT_INIT(AR5K_SIMR1),
122 	REG_STRUCT_INIT(AR5K_SIMR2),
123 	REG_STRUCT_INIT(AR5K_SIMR3),
124 	REG_STRUCT_INIT(AR5K_SIMR4),
125 	REG_STRUCT_INIT(AR5K_DCM_ADDR),
126 	REG_STRUCT_INIT(AR5K_DCCFG),
127 	REG_STRUCT_INIT(AR5K_CCFG),
128 	REG_STRUCT_INIT(AR5K_CPC0),
129 	REG_STRUCT_INIT(AR5K_CPC1),
130 	REG_STRUCT_INIT(AR5K_CPC2),
131 	REG_STRUCT_INIT(AR5K_CPC3),
132 	REG_STRUCT_INIT(AR5K_CPCOVF),
133 	REG_STRUCT_INIT(AR5K_RESET_CTL),
134 	REG_STRUCT_INIT(AR5K_SLEEP_CTL),
135 	REG_STRUCT_INIT(AR5K_INTPEND),
136 	REG_STRUCT_INIT(AR5K_SFR),
137 	REG_STRUCT_INIT(AR5K_PCICFG),
138 	REG_STRUCT_INIT(AR5K_GPIOCR),
139 	REG_STRUCT_INIT(AR5K_GPIODO),
140 	REG_STRUCT_INIT(AR5K_SREV),
141 };
142 
143 static void *reg_start(struct seq_file *seq, loff_t *pos)
144 {
145 	return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
146 }
147 
148 static void reg_stop(struct seq_file *seq, void *p)
149 {
150 	/* nothing to do */
151 }
152 
153 static void *reg_next(struct seq_file *seq, void *p, loff_t *pos)
154 {
155 	++*pos;
156 	return *pos < ARRAY_SIZE(regs) ? (void *)&regs[*pos] : NULL;
157 }
158 
159 static int reg_show(struct seq_file *seq, void *p)
160 {
161 	struct ath5k_softc *sc = seq->private;
162 	struct reg *r = p;
163 	seq_printf(seq, "%-25s0x%08x\n", r->name,
164 		ath5k_hw_reg_read(sc->ah, r->addr));
165 	return 0;
166 }
167 
168 static const struct seq_operations register_seq_ops = {
169 	.start = reg_start,
170 	.next  = reg_next,
171 	.stop  = reg_stop,
172 	.show  = reg_show
173 };
174 
175 static int open_file_registers(struct inode *inode, struct file *file)
176 {
177 	struct seq_file *s;
178 	int res;
179 	res = seq_open(file, &register_seq_ops);
180 	if (res == 0) {
181 		s = file->private_data;
182 		s->private = inode->i_private;
183 	}
184 	return res;
185 }
186 
187 static const struct file_operations fops_registers = {
188 	.open = open_file_registers,
189 	.read    = seq_read,
190 	.llseek  = seq_lseek,
191 	.release = seq_release,
192 	.owner = THIS_MODULE,
193 };
194 
195 
196 /* debugfs: beacons */
197 
198 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
199 				   size_t count, loff_t *ppos)
200 {
201 	struct ath5k_softc *sc = file->private_data;
202 	struct ath5k_hw *ah = sc->ah;
203 	char buf[500];
204 	unsigned int len = 0;
205 	unsigned int v;
206 	u64 tsf;
207 
208 	v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON);
209 	len += snprintf(buf+len, sizeof(buf)-len,
210 		"%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
211 		"AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
212 		(v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
213 
214 	len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n",
215 		"AR5K_LAST_TSTP", ath5k_hw_reg_read(sc->ah, AR5K_LAST_TSTP));
216 
217 	len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\n\n",
218 		"AR5K_BEACON_CNT", ath5k_hw_reg_read(sc->ah, AR5K_BEACON_CNT));
219 
220 	v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER0);
221 	len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
222 		"AR5K_TIMER0 (TBTT)", v, v);
223 
224 	v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER1);
225 	len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
226 		"AR5K_TIMER1 (DMA)", v, v >> 3);
227 
228 	v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER2);
229 	len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
230 		"AR5K_TIMER2 (SWBA)", v, v >> 3);
231 
232 	v = ath5k_hw_reg_read(sc->ah, AR5K_TIMER3);
233 	len += snprintf(buf+len, sizeof(buf)-len, "%-24s0x%08x\tTU: %08x\n",
234 		"AR5K_TIMER3 (ATIM)", v, v);
235 
236 	tsf = ath5k_hw_get_tsf64(sc->ah);
237 	len += snprintf(buf+len, sizeof(buf)-len,
238 		"TSF\t\t0x%016llx\tTU: %08x\n",
239 		(unsigned long long)tsf, TSF_TO_TU(tsf));
240 
241 	if (len > sizeof(buf))
242 		len = sizeof(buf);
243 
244 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
245 }
246 
247 static ssize_t write_file_beacon(struct file *file,
248 				 const char __user *userbuf,
249 				 size_t count, loff_t *ppos)
250 {
251 	struct ath5k_softc *sc = file->private_data;
252 	struct ath5k_hw *ah = sc->ah;
253 	char buf[20];
254 
255 	if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
256 		return -EFAULT;
257 
258 	if (strncmp(buf, "disable", 7) == 0) {
259 		AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
260 		printk(KERN_INFO "debugfs disable beacons\n");
261 	} else if (strncmp(buf, "enable", 6) == 0) {
262 		AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
263 		printk(KERN_INFO "debugfs enable beacons\n");
264 	}
265 	return count;
266 }
267 
268 static const struct file_operations fops_beacon = {
269 	.read = read_file_beacon,
270 	.write = write_file_beacon,
271 	.open = ath5k_debugfs_open,
272 	.owner = THIS_MODULE,
273 	.llseek = default_llseek,
274 };
275 
276 
277 /* debugfs: reset */
278 
279 static ssize_t write_file_reset(struct file *file,
280 				 const char __user *userbuf,
281 				 size_t count, loff_t *ppos)
282 {
283 	struct ath5k_softc *sc = file->private_data;
284 	ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
285 	ieee80211_queue_work(sc->hw, &sc->reset_work);
286 	return count;
287 }
288 
289 static const struct file_operations fops_reset = {
290 	.write = write_file_reset,
291 	.open = ath5k_debugfs_open,
292 	.owner = THIS_MODULE,
293 	.llseek = noop_llseek,
294 };
295 
296 
297 /* debugfs: debug level */
298 
299 static const struct {
300 	enum ath5k_debug_level level;
301 	const char *name;
302 	const char *desc;
303 } dbg_info[] = {
304 	{ ATH5K_DEBUG_RESET,	"reset",	"reset and initialization" },
305 	{ ATH5K_DEBUG_INTR,	"intr",		"interrupt handling" },
306 	{ ATH5K_DEBUG_MODE,	"mode",		"mode init/setup" },
307 	{ ATH5K_DEBUG_XMIT,	"xmit",		"basic xmit operation" },
308 	{ ATH5K_DEBUG_BEACON,	"beacon",	"beacon handling" },
309 	{ ATH5K_DEBUG_CALIBRATE, "calib",	"periodic calibration" },
310 	{ ATH5K_DEBUG_TXPOWER,	"txpower",	"transmit power setting" },
311 	{ ATH5K_DEBUG_LED,	"led",		"LED management" },
312 	{ ATH5K_DEBUG_DUMP_RX,	"dumprx",	"print received skb content" },
313 	{ ATH5K_DEBUG_DUMP_TX,	"dumptx",	"print transmit skb content" },
314 	{ ATH5K_DEBUG_DUMPBANDS, "dumpbands",	"dump bands" },
315 	{ ATH5K_DEBUG_ANI,	"ani",		"adaptive noise immunity" },
316 	{ ATH5K_DEBUG_DESC,	"desc",		"descriptor chains" },
317 	{ ATH5K_DEBUG_ANY,	"all",		"show all debug levels" },
318 };
319 
320 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
321 				   size_t count, loff_t *ppos)
322 {
323 	struct ath5k_softc *sc = file->private_data;
324 	char buf[700];
325 	unsigned int len = 0;
326 	unsigned int i;
327 
328 	len += snprintf(buf+len, sizeof(buf)-len,
329 		"DEBUG LEVEL: 0x%08x\n\n", sc->debug.level);
330 
331 	for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
332 		len += snprintf(buf+len, sizeof(buf)-len,
333 			"%10s %c 0x%08x - %s\n", dbg_info[i].name,
334 			sc->debug.level & dbg_info[i].level ? '+' : ' ',
335 			dbg_info[i].level, dbg_info[i].desc);
336 	}
337 	len += snprintf(buf+len, sizeof(buf)-len,
338 		"%10s %c 0x%08x - %s\n", dbg_info[i].name,
339 		sc->debug.level == dbg_info[i].level ? '+' : ' ',
340 		dbg_info[i].level, dbg_info[i].desc);
341 
342 	if (len > sizeof(buf))
343 		len = sizeof(buf);
344 
345 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
346 }
347 
348 static ssize_t write_file_debug(struct file *file,
349 				 const char __user *userbuf,
350 				 size_t count, loff_t *ppos)
351 {
352 	struct ath5k_softc *sc = file->private_data;
353 	unsigned int i;
354 	char buf[20];
355 
356 	if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
357 		return -EFAULT;
358 
359 	for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
360 		if (strncmp(buf, dbg_info[i].name,
361 					strlen(dbg_info[i].name)) == 0) {
362 			sc->debug.level ^= dbg_info[i].level; /* toggle bit */
363 			break;
364 		}
365 	}
366 	return count;
367 }
368 
369 static const struct file_operations fops_debug = {
370 	.read = read_file_debug,
371 	.write = write_file_debug,
372 	.open = ath5k_debugfs_open,
373 	.owner = THIS_MODULE,
374 	.llseek = default_llseek,
375 };
376 
377 
378 /* debugfs: antenna */
379 
380 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
381 				   size_t count, loff_t *ppos)
382 {
383 	struct ath5k_softc *sc = file->private_data;
384 	char buf[700];
385 	unsigned int len = 0;
386 	unsigned int i;
387 	unsigned int v;
388 
389 	len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n",
390 		sc->ah->ah_ant_mode);
391 	len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n",
392 		sc->ah->ah_def_ant);
393 	len += snprintf(buf+len, sizeof(buf)-len, "tx antenna\t%d\n",
394 		sc->ah->ah_tx_ant);
395 
396 	len += snprintf(buf+len, sizeof(buf)-len, "\nANTENNA\t\tRX\tTX\n");
397 	for (i = 1; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
398 		len += snprintf(buf+len, sizeof(buf)-len,
399 			"[antenna %d]\t%d\t%d\n",
400 			i, sc->stats.antenna_rx[i], sc->stats.antenna_tx[i]);
401 	}
402 	len += snprintf(buf+len, sizeof(buf)-len, "[invalid]\t%d\t%d\n",
403 			sc->stats.antenna_rx[0], sc->stats.antenna_tx[0]);
404 
405 	v = ath5k_hw_reg_read(sc->ah, AR5K_DEFAULT_ANTENNA);
406 	len += snprintf(buf+len, sizeof(buf)-len,
407 			"\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
408 
409 	v = ath5k_hw_reg_read(sc->ah, AR5K_STA_ID1);
410 	len += snprintf(buf+len, sizeof(buf)-len,
411 		"AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
412 		(v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
413 	len += snprintf(buf+len, sizeof(buf)-len,
414 		"AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
415 		(v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
416 	len += snprintf(buf+len, sizeof(buf)-len,
417 		"AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
418 		(v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
419 	len += snprintf(buf+len, sizeof(buf)-len,
420 		"AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
421 		(v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
422 
423 	v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_AGCCTL);
424 	len += snprintf(buf+len, sizeof(buf)-len,
425 		"\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
426 		(v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
427 
428 	v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_RESTART);
429 	len += snprintf(buf+len, sizeof(buf)-len,
430 		"AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
431 		(v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
432 
433 	v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_FAST_ANT_DIV);
434 	len += snprintf(buf+len, sizeof(buf)-len,
435 		"AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
436 		(v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
437 
438 	v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
439 	len += snprintf(buf+len, sizeof(buf)-len,
440 			"\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
441 	v = ath5k_hw_reg_read(sc->ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
442 	len += snprintf(buf+len, sizeof(buf)-len,
443 			"AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
444 
445 	if (len > sizeof(buf))
446 		len = sizeof(buf);
447 
448 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
449 }
450 
451 static ssize_t write_file_antenna(struct file *file,
452 				 const char __user *userbuf,
453 				 size_t count, loff_t *ppos)
454 {
455 	struct ath5k_softc *sc = file->private_data;
456 	unsigned int i;
457 	char buf[20];
458 
459 	if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
460 		return -EFAULT;
461 
462 	if (strncmp(buf, "diversity", 9) == 0) {
463 		ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT);
464 		printk(KERN_INFO "ath5k debug: enable diversity\n");
465 	} else if (strncmp(buf, "fixed-a", 7) == 0) {
466 		ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A);
467 		printk(KERN_INFO "ath5k debugfs: fixed antenna A\n");
468 	} else if (strncmp(buf, "fixed-b", 7) == 0) {
469 		ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B);
470 		printk(KERN_INFO "ath5k debug: fixed antenna B\n");
471 	} else if (strncmp(buf, "clear", 5) == 0) {
472 		for (i = 0; i < ARRAY_SIZE(sc->stats.antenna_rx); i++) {
473 			sc->stats.antenna_rx[i] = 0;
474 			sc->stats.antenna_tx[i] = 0;
475 		}
476 		printk(KERN_INFO "ath5k debug: cleared antenna stats\n");
477 	}
478 	return count;
479 }
480 
481 static const struct file_operations fops_antenna = {
482 	.read = read_file_antenna,
483 	.write = write_file_antenna,
484 	.open = ath5k_debugfs_open,
485 	.owner = THIS_MODULE,
486 	.llseek = default_llseek,
487 };
488 
489 /* debugfs: misc */
490 
491 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
492 				   size_t count, loff_t *ppos)
493 {
494 	struct ath5k_softc *sc = file->private_data;
495 	char buf[700];
496 	unsigned int len = 0;
497 	u32 filt = ath5k_hw_get_rx_filter(sc->ah);
498 
499 	len += snprintf(buf+len, sizeof(buf)-len, "bssid-mask: %pM\n",
500 			sc->bssidmask);
501 	len += snprintf(buf+len, sizeof(buf)-len, "filter-flags: 0x%x ",
502 			filt);
503 	if (filt & AR5K_RX_FILTER_UCAST)
504 		len += snprintf(buf+len, sizeof(buf)-len, " UCAST");
505 	if (filt & AR5K_RX_FILTER_MCAST)
506 		len += snprintf(buf+len, sizeof(buf)-len, " MCAST");
507 	if (filt & AR5K_RX_FILTER_BCAST)
508 		len += snprintf(buf+len, sizeof(buf)-len, " BCAST");
509 	if (filt & AR5K_RX_FILTER_CONTROL)
510 		len += snprintf(buf+len, sizeof(buf)-len, " CONTROL");
511 	if (filt & AR5K_RX_FILTER_BEACON)
512 		len += snprintf(buf+len, sizeof(buf)-len, " BEACON");
513 	if (filt & AR5K_RX_FILTER_PROM)
514 		len += snprintf(buf+len, sizeof(buf)-len, " PROM");
515 	if (filt & AR5K_RX_FILTER_XRPOLL)
516 		len += snprintf(buf+len, sizeof(buf)-len, " XRPOLL");
517 	if (filt & AR5K_RX_FILTER_PROBEREQ)
518 		len += snprintf(buf+len, sizeof(buf)-len, " PROBEREQ");
519 	if (filt & AR5K_RX_FILTER_PHYERR_5212)
520 		len += snprintf(buf+len, sizeof(buf)-len, " PHYERR-5212");
521 	if (filt & AR5K_RX_FILTER_RADARERR_5212)
522 		len += snprintf(buf+len, sizeof(buf)-len, " RADARERR-5212");
523 	if (filt & AR5K_RX_FILTER_PHYERR_5211)
524 		snprintf(buf+len, sizeof(buf)-len, " PHYERR-5211");
525 	if (filt & AR5K_RX_FILTER_RADARERR_5211)
526 		len += snprintf(buf+len, sizeof(buf)-len, " RADARERR-5211");
527 
528 	len += snprintf(buf+len, sizeof(buf)-len, "\nopmode: %s (%d)\n",
529 			ath_opmode_to_string(sc->opmode), sc->opmode);
530 
531 	if (len > sizeof(buf))
532 		len = sizeof(buf);
533 
534 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
535 }
536 
537 static const struct file_operations fops_misc = {
538 	.read = read_file_misc,
539 	.open = ath5k_debugfs_open,
540 	.owner = THIS_MODULE,
541 };
542 
543 
544 /* debugfs: frameerrors */
545 
546 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
547 				   size_t count, loff_t *ppos)
548 {
549 	struct ath5k_softc *sc = file->private_data;
550 	struct ath5k_statistics *st = &sc->stats;
551 	char buf[700];
552 	unsigned int len = 0;
553 	int i;
554 
555 	len += snprintf(buf+len, sizeof(buf)-len,
556 			"RX\n---------------------\n");
557 	len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%d\t(%d%%)\n",
558 			st->rxerr_crc,
559 			st->rx_all_count > 0 ?
560 				st->rxerr_crc*100/st->rx_all_count : 0);
561 	len += snprintf(buf+len, sizeof(buf)-len, "PHY\t%d\t(%d%%)\n",
562 			st->rxerr_phy,
563 			st->rx_all_count > 0 ?
564 				st->rxerr_phy*100/st->rx_all_count : 0);
565 	for (i = 0; i < 32; i++) {
566 		if (st->rxerr_phy_code[i])
567 			len += snprintf(buf+len, sizeof(buf)-len,
568 				" phy_err[%d]\t%d\n",
569 				i, st->rxerr_phy_code[i]);
570 	}
571 
572 	len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
573 			st->rxerr_fifo,
574 			st->rx_all_count > 0 ?
575 				st->rxerr_fifo*100/st->rx_all_count : 0);
576 	len += snprintf(buf+len, sizeof(buf)-len, "decrypt\t%d\t(%d%%)\n",
577 			st->rxerr_decrypt,
578 			st->rx_all_count > 0 ?
579 				st->rxerr_decrypt*100/st->rx_all_count : 0);
580 	len += snprintf(buf+len, sizeof(buf)-len, "MIC\t%d\t(%d%%)\n",
581 			st->rxerr_mic,
582 			st->rx_all_count > 0 ?
583 				st->rxerr_mic*100/st->rx_all_count : 0);
584 	len += snprintf(buf+len, sizeof(buf)-len, "process\t%d\t(%d%%)\n",
585 			st->rxerr_proc,
586 			st->rx_all_count > 0 ?
587 				st->rxerr_proc*100/st->rx_all_count : 0);
588 	len += snprintf(buf+len, sizeof(buf)-len, "jumbo\t%d\t(%d%%)\n",
589 			st->rxerr_jumbo,
590 			st->rx_all_count > 0 ?
591 				st->rxerr_jumbo*100/st->rx_all_count : 0);
592 	len += snprintf(buf+len, sizeof(buf)-len, "[RX all\t%d]\n",
593 			st->rx_all_count);
594 	len += snprintf(buf+len, sizeof(buf)-len, "RX-all-bytes\t%d\n",
595 			st->rx_bytes_count);
596 
597 	len += snprintf(buf+len, sizeof(buf)-len,
598 			"\nTX\n---------------------\n");
599 	len += snprintf(buf+len, sizeof(buf)-len, "retry\t%d\t(%d%%)\n",
600 			st->txerr_retry,
601 			st->tx_all_count > 0 ?
602 				st->txerr_retry*100/st->tx_all_count : 0);
603 	len += snprintf(buf+len, sizeof(buf)-len, "FIFO\t%d\t(%d%%)\n",
604 			st->txerr_fifo,
605 			st->tx_all_count > 0 ?
606 				st->txerr_fifo*100/st->tx_all_count : 0);
607 	len += snprintf(buf+len, sizeof(buf)-len, "filter\t%d\t(%d%%)\n",
608 			st->txerr_filt,
609 			st->tx_all_count > 0 ?
610 				st->txerr_filt*100/st->tx_all_count : 0);
611 	len += snprintf(buf+len, sizeof(buf)-len, "[TX all\t%d]\n",
612 			st->tx_all_count);
613 	len += snprintf(buf+len, sizeof(buf)-len, "TX-all-bytes\t%d\n",
614 			st->tx_bytes_count);
615 
616 	if (len > sizeof(buf))
617 		len = sizeof(buf);
618 
619 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
620 }
621 
622 static ssize_t write_file_frameerrors(struct file *file,
623 				 const char __user *userbuf,
624 				 size_t count, loff_t *ppos)
625 {
626 	struct ath5k_softc *sc = file->private_data;
627 	struct ath5k_statistics *st = &sc->stats;
628 	char buf[20];
629 
630 	if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
631 		return -EFAULT;
632 
633 	if (strncmp(buf, "clear", 5) == 0) {
634 		st->rxerr_crc = 0;
635 		st->rxerr_phy = 0;
636 		st->rxerr_fifo = 0;
637 		st->rxerr_decrypt = 0;
638 		st->rxerr_mic = 0;
639 		st->rxerr_proc = 0;
640 		st->rxerr_jumbo = 0;
641 		st->rx_all_count = 0;
642 		st->txerr_retry = 0;
643 		st->txerr_fifo = 0;
644 		st->txerr_filt = 0;
645 		st->tx_all_count = 0;
646 		printk(KERN_INFO "ath5k debug: cleared frameerrors stats\n");
647 	}
648 	return count;
649 }
650 
651 static const struct file_operations fops_frameerrors = {
652 	.read = read_file_frameerrors,
653 	.write = write_file_frameerrors,
654 	.open = ath5k_debugfs_open,
655 	.owner = THIS_MODULE,
656 	.llseek = default_llseek,
657 };
658 
659 
660 /* debugfs: ani */
661 
662 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
663 				   size_t count, loff_t *ppos)
664 {
665 	struct ath5k_softc *sc = file->private_data;
666 	struct ath5k_statistics *st = &sc->stats;
667 	struct ath5k_ani_state *as = &sc->ani_state;
668 
669 	char buf[700];
670 	unsigned int len = 0;
671 
672 	len += snprintf(buf+len, sizeof(buf)-len,
673 			"HW has PHY error counters:\t%s\n",
674 			sc->ah->ah_capabilities.cap_has_phyerr_counters ?
675 			"yes" : "no");
676 	len += snprintf(buf+len, sizeof(buf)-len,
677 			"HW max spur immunity level:\t%d\n",
678 			as->max_spur_level);
679 	len += snprintf(buf+len, sizeof(buf)-len,
680 		"\nANI state\n--------------------------------------------\n");
681 	len += snprintf(buf+len, sizeof(buf)-len, "operating mode:\t\t\t");
682 	switch (as->ani_mode) {
683 	case ATH5K_ANI_MODE_OFF:
684 		len += snprintf(buf+len, sizeof(buf)-len, "OFF\n");
685 		break;
686 	case ATH5K_ANI_MODE_MANUAL_LOW:
687 		len += snprintf(buf+len, sizeof(buf)-len,
688 			"MANUAL LOW\n");
689 		break;
690 	case ATH5K_ANI_MODE_MANUAL_HIGH:
691 		len += snprintf(buf+len, sizeof(buf)-len,
692 			"MANUAL HIGH\n");
693 		break;
694 	case ATH5K_ANI_MODE_AUTO:
695 		len += snprintf(buf+len, sizeof(buf)-len, "AUTO\n");
696 		break;
697 	default:
698 		len += snprintf(buf+len, sizeof(buf)-len,
699 			"??? (not good)\n");
700 		break;
701 	}
702 	len += snprintf(buf+len, sizeof(buf)-len,
703 			"noise immunity level:\t\t%d\n",
704 			as->noise_imm_level);
705 	len += snprintf(buf+len, sizeof(buf)-len,
706 			"spur immunity level:\t\t%d\n",
707 			as->spur_level);
708 	len += snprintf(buf+len, sizeof(buf)-len, "firstep level:\t\t\t%d\n",
709 			as->firstep_level);
710 	len += snprintf(buf+len, sizeof(buf)-len,
711 			"OFDM weak signal detection:\t%s\n",
712 			as->ofdm_weak_sig ? "on" : "off");
713 	len += snprintf(buf+len, sizeof(buf)-len,
714 			"CCK weak signal detection:\t%s\n",
715 			as->cck_weak_sig ? "on" : "off");
716 
717 	len += snprintf(buf+len, sizeof(buf)-len,
718 			"\nMIB INTERRUPTS:\t\t%u\n",
719 			st->mib_intr);
720 	len += snprintf(buf+len, sizeof(buf)-len,
721 			"beacon RSSI average:\t%d\n",
722 			sc->ah->ah_beacon_rssi_avg.avg);
723 
724 #define CC_PRINT(_struct, _field) \
725 	_struct._field, \
726 	_struct.cycles > 0 ? \
727 	_struct._field*100/_struct.cycles : 0
728 
729 	len += snprintf(buf+len, sizeof(buf)-len, "profcnt tx\t\t%u\t(%d%%)\n",
730 			CC_PRINT(as->last_cc, tx_frame));
731 	len += snprintf(buf+len, sizeof(buf)-len, "profcnt rx\t\t%u\t(%d%%)\n",
732 			CC_PRINT(as->last_cc, rx_frame));
733 	len += snprintf(buf+len, sizeof(buf)-len, "profcnt busy\t\t%u\t(%d%%)\n",
734 			CC_PRINT(as->last_cc, rx_busy));
735 #undef CC_PRINT
736 	len += snprintf(buf+len, sizeof(buf)-len, "profcnt cycles\t\t%u\n",
737 			as->last_cc.cycles);
738 	len += snprintf(buf+len, sizeof(buf)-len,
739 			"listen time\t\t%d\tlast: %d\n",
740 			as->listen_time, as->last_listen);
741 	len += snprintf(buf+len, sizeof(buf)-len,
742 			"OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
743 			as->ofdm_errors, as->last_ofdm_errors,
744 			as->sum_ofdm_errors);
745 	len += snprintf(buf+len, sizeof(buf)-len,
746 			"CCK errors\t\t%u\tlast: %u\tsum: %u\n",
747 			as->cck_errors, as->last_cck_errors,
748 			as->sum_cck_errors);
749 	len += snprintf(buf+len, sizeof(buf)-len,
750 			"AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
751 			ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1),
752 			ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
753 			ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT1)));
754 	len += snprintf(buf+len, sizeof(buf)-len,
755 			"AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
756 			ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2),
757 			ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
758 			ath5k_hw_reg_read(sc->ah, AR5K_PHYERR_CNT2)));
759 
760 	if (len > sizeof(buf))
761 		len = sizeof(buf);
762 
763 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
764 }
765 
766 static ssize_t write_file_ani(struct file *file,
767 				 const char __user *userbuf,
768 				 size_t count, loff_t *ppos)
769 {
770 	struct ath5k_softc *sc = file->private_data;
771 	char buf[20];
772 
773 	if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
774 		return -EFAULT;
775 
776 	if (strncmp(buf, "sens-low", 8) == 0) {
777 		ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_HIGH);
778 	} else if (strncmp(buf, "sens-high", 9) == 0) {
779 		ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_MANUAL_LOW);
780 	} else if (strncmp(buf, "ani-off", 7) == 0) {
781 		ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_OFF);
782 	} else if (strncmp(buf, "ani-on", 6) == 0) {
783 		ath5k_ani_init(sc->ah, ATH5K_ANI_MODE_AUTO);
784 	} else if (strncmp(buf, "noise-low", 9) == 0) {
785 		ath5k_ani_set_noise_immunity_level(sc->ah, 0);
786 	} else if (strncmp(buf, "noise-high", 10) == 0) {
787 		ath5k_ani_set_noise_immunity_level(sc->ah,
788 						   ATH5K_ANI_MAX_NOISE_IMM_LVL);
789 	} else if (strncmp(buf, "spur-low", 8) == 0) {
790 		ath5k_ani_set_spur_immunity_level(sc->ah, 0);
791 	} else if (strncmp(buf, "spur-high", 9) == 0) {
792 		ath5k_ani_set_spur_immunity_level(sc->ah,
793 						  sc->ani_state.max_spur_level);
794 	} else if (strncmp(buf, "fir-low", 7) == 0) {
795 		ath5k_ani_set_firstep_level(sc->ah, 0);
796 	} else if (strncmp(buf, "fir-high", 8) == 0) {
797 		ath5k_ani_set_firstep_level(sc->ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
798 	} else if (strncmp(buf, "ofdm-off", 8) == 0) {
799 		ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, false);
800 	} else if (strncmp(buf, "ofdm-on", 7) == 0) {
801 		ath5k_ani_set_ofdm_weak_signal_detection(sc->ah, true);
802 	} else if (strncmp(buf, "cck-off", 7) == 0) {
803 		ath5k_ani_set_cck_weak_signal_detection(sc->ah, false);
804 	} else if (strncmp(buf, "cck-on", 6) == 0) {
805 		ath5k_ani_set_cck_weak_signal_detection(sc->ah, true);
806 	}
807 	return count;
808 }
809 
810 static const struct file_operations fops_ani = {
811 	.read = read_file_ani,
812 	.write = write_file_ani,
813 	.open = ath5k_debugfs_open,
814 	.owner = THIS_MODULE,
815 	.llseek = default_llseek,
816 };
817 
818 
819 /* debugfs: queues etc */
820 
821 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
822 				   size_t count, loff_t *ppos)
823 {
824 	struct ath5k_softc *sc = file->private_data;
825 	char buf[700];
826 	unsigned int len = 0;
827 
828 	struct ath5k_txq *txq;
829 	struct ath5k_buf *bf, *bf0;
830 	int i, n;
831 
832 	len += snprintf(buf+len, sizeof(buf)-len,
833 			"available txbuffers: %d\n", sc->txbuf_len);
834 
835 	for (i = 0; i < ARRAY_SIZE(sc->txqs); i++) {
836 		txq = &sc->txqs[i];
837 
838 		len += snprintf(buf+len, sizeof(buf)-len,
839 			"%02d: %ssetup\n", i, txq->setup ? "" : "not ");
840 
841 		if (!txq->setup)
842 			continue;
843 
844 		n = 0;
845 		spin_lock_bh(&txq->lock);
846 		list_for_each_entry_safe(bf, bf0, &txq->q, list)
847 			n++;
848 		spin_unlock_bh(&txq->lock);
849 
850 		len += snprintf(buf+len, sizeof(buf)-len,
851 				"  len: %d bufs: %d\n", txq->txq_len, n);
852 		len += snprintf(buf+len, sizeof(buf)-len,
853 				"  stuck: %d\n", txq->txq_stuck);
854 	}
855 
856 	if (len > sizeof(buf))
857 		len = sizeof(buf);
858 
859 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
860 }
861 
862 static ssize_t write_file_queue(struct file *file,
863 				 const char __user *userbuf,
864 				 size_t count, loff_t *ppos)
865 {
866 	struct ath5k_softc *sc = file->private_data;
867 	char buf[20];
868 
869 	if (copy_from_user(buf, userbuf, min(count, sizeof(buf))))
870 		return -EFAULT;
871 
872 	if (strncmp(buf, "start", 5) == 0)
873 		ieee80211_wake_queues(sc->hw);
874 	else if (strncmp(buf, "stop", 4) == 0)
875 		ieee80211_stop_queues(sc->hw);
876 
877 	return count;
878 }
879 
880 
881 static const struct file_operations fops_queue = {
882 	.read = read_file_queue,
883 	.write = write_file_queue,
884 	.open = ath5k_debugfs_open,
885 	.owner = THIS_MODULE,
886 	.llseek = default_llseek,
887 };
888 
889 
890 void
891 ath5k_debug_init_device(struct ath5k_softc *sc)
892 {
893 	sc->debug.level = ath5k_debug;
894 
895 	sc->debug.debugfs_phydir = debugfs_create_dir("ath5k",
896 				sc->hw->wiphy->debugfsdir);
897 
898 	sc->debug.debugfs_debug = debugfs_create_file("debug",
899 				S_IWUSR | S_IRUSR,
900 				sc->debug.debugfs_phydir, sc, &fops_debug);
901 
902 	sc->debug.debugfs_registers = debugfs_create_file("registers", S_IRUSR,
903 				sc->debug.debugfs_phydir, sc, &fops_registers);
904 
905 	sc->debug.debugfs_beacon = debugfs_create_file("beacon",
906 				S_IWUSR | S_IRUSR,
907 				sc->debug.debugfs_phydir, sc, &fops_beacon);
908 
909 	sc->debug.debugfs_reset = debugfs_create_file("reset", S_IWUSR,
910 				sc->debug.debugfs_phydir, sc, &fops_reset);
911 
912 	sc->debug.debugfs_antenna = debugfs_create_file("antenna",
913 				S_IWUSR | S_IRUSR,
914 				sc->debug.debugfs_phydir, sc, &fops_antenna);
915 
916 	sc->debug.debugfs_misc = debugfs_create_file("misc",
917 				S_IRUSR,
918 				sc->debug.debugfs_phydir, sc, &fops_misc);
919 
920 	sc->debug.debugfs_frameerrors = debugfs_create_file("frameerrors",
921 				S_IWUSR | S_IRUSR,
922 				sc->debug.debugfs_phydir, sc,
923 				&fops_frameerrors);
924 
925 	sc->debug.debugfs_ani = debugfs_create_file("ani",
926 				S_IWUSR | S_IRUSR,
927 				sc->debug.debugfs_phydir, sc,
928 				&fops_ani);
929 
930 	sc->debug.debugfs_queue = debugfs_create_file("queue",
931 				S_IWUSR | S_IRUSR,
932 				sc->debug.debugfs_phydir, sc,
933 				&fops_queue);
934 }
935 
936 void
937 ath5k_debug_finish_device(struct ath5k_softc *sc)
938 {
939 	debugfs_remove(sc->debug.debugfs_debug);
940 	debugfs_remove(sc->debug.debugfs_registers);
941 	debugfs_remove(sc->debug.debugfs_beacon);
942 	debugfs_remove(sc->debug.debugfs_reset);
943 	debugfs_remove(sc->debug.debugfs_antenna);
944 	debugfs_remove(sc->debug.debugfs_misc);
945 	debugfs_remove(sc->debug.debugfs_frameerrors);
946 	debugfs_remove(sc->debug.debugfs_ani);
947 	debugfs_remove(sc->debug.debugfs_queue);
948 	debugfs_remove(sc->debug.debugfs_phydir);
949 }
950 
951 
952 /* functions used in other places */
953 
954 void
955 ath5k_debug_dump_bands(struct ath5k_softc *sc)
956 {
957 	unsigned int b, i;
958 
959 	if (likely(!(sc->debug.level & ATH5K_DEBUG_DUMPBANDS)))
960 		return;
961 
962 	BUG_ON(!sc->sbands);
963 
964 	for (b = 0; b < IEEE80211_NUM_BANDS; b++) {
965 		struct ieee80211_supported_band *band = &sc->sbands[b];
966 		char bname[6];
967 		switch (band->band) {
968 		case IEEE80211_BAND_2GHZ:
969 			strcpy(bname, "2 GHz");
970 			break;
971 		case IEEE80211_BAND_5GHZ:
972 			strcpy(bname, "5 GHz");
973 			break;
974 		default:
975 			printk(KERN_DEBUG "Band not supported: %d\n",
976 				band->band);
977 			return;
978 		}
979 		printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
980 				band->n_channels, band->n_bitrates);
981 		printk(KERN_DEBUG " channels:\n");
982 		for (i = 0; i < band->n_channels; i++)
983 			printk(KERN_DEBUG "  %3d %d %.4x %.4x\n",
984 					ieee80211_frequency_to_channel(
985 						band->channels[i].center_freq),
986 					band->channels[i].center_freq,
987 					band->channels[i].hw_value,
988 					band->channels[i].flags);
989 		printk(KERN_DEBUG " rates:\n");
990 		for (i = 0; i < band->n_bitrates; i++)
991 			printk(KERN_DEBUG "  %4d %.4x %.4x %.4x\n",
992 					band->bitrates[i].bitrate,
993 					band->bitrates[i].hw_value,
994 					band->bitrates[i].flags,
995 					band->bitrates[i].hw_value_short);
996 	}
997 }
998 
999 static inline void
1000 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
1001 		       struct ath5k_rx_status *rs)
1002 {
1003 	struct ath5k_desc *ds = bf->desc;
1004 	struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
1005 
1006 	printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1007 		ds, (unsigned long long)bf->daddr,
1008 		ds->ds_link, ds->ds_data,
1009 		rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
1010 		rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
1011 		!done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
1012 }
1013 
1014 void
1015 ath5k_debug_printrxbuffs(struct ath5k_softc *sc, struct ath5k_hw *ah)
1016 {
1017 	struct ath5k_desc *ds;
1018 	struct ath5k_buf *bf;
1019 	struct ath5k_rx_status rs = {};
1020 	int status;
1021 
1022 	if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
1023 		return;
1024 
1025 	printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1026 		ath5k_hw_get_rxdp(ah), sc->rxlink);
1027 
1028 	spin_lock_bh(&sc->rxbuflock);
1029 	list_for_each_entry(bf, &sc->rxbuf, list) {
1030 		ds = bf->desc;
1031 		status = ah->ah_proc_rx_desc(ah, ds, &rs);
1032 		if (!status)
1033 			ath5k_debug_printrxbuf(bf, status == 0, &rs);
1034 	}
1035 	spin_unlock_bh(&sc->rxbuflock);
1036 }
1037 
1038 void
1039 ath5k_debug_dump_skb(struct ath5k_softc *sc,
1040 			struct sk_buff *skb, const char *prefix, int tx)
1041 {
1042 	char buf[16];
1043 
1044 	if (likely(!((tx && (sc->debug.level & ATH5K_DEBUG_DUMP_TX)) ||
1045 		     (!tx && (sc->debug.level & ATH5K_DEBUG_DUMP_RX)))))
1046 		return;
1047 
1048 	snprintf(buf, sizeof(buf), "%s %s", wiphy_name(sc->hw->wiphy), prefix);
1049 
1050 	print_hex_dump_bytes(buf, DUMP_PREFIX_NONE, skb->data,
1051 		min(200U, skb->len));
1052 
1053 	printk(KERN_DEBUG "\n");
1054 }
1055 
1056 void
1057 ath5k_debug_printtxbuf(struct ath5k_softc *sc, struct ath5k_buf *bf)
1058 {
1059 	struct ath5k_desc *ds = bf->desc;
1060 	struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1061 	struct ath5k_tx_status ts = {};
1062 	int done;
1063 
1064 	if (likely(!(sc->debug.level & ATH5K_DEBUG_DESC)))
1065 		return;
1066 
1067 	done = sc->ah->ah_proc_tx_desc(sc->ah, bf->desc, &ts);
1068 
1069 	printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1070 		"%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1071 		ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1072 		td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1073 		td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1074 		done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1075 }
1076 
1077 #endif /* ifdef CONFIG_ATH5K_DEBUG */
1078