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 registers_sops = {
165 	.start = reg_start,
166 	.next  = reg_next,
167 	.stop  = reg_stop,
168 	.show  = reg_show
169 };
170 
171 DEFINE_SEQ_ATTRIBUTE(registers);
172 
173 /* debugfs: beacons */
174 
175 static ssize_t read_file_beacon(struct file *file, char __user *user_buf,
176 				   size_t count, loff_t *ppos)
177 {
178 	struct ath5k_hw *ah = file->private_data;
179 	char buf[500];
180 	unsigned int len = 0;
181 	unsigned int v;
182 	u64 tsf;
183 
184 	v = ath5k_hw_reg_read(ah, AR5K_BEACON);
185 	len += scnprintf(buf + len, sizeof(buf) - len,
186 		"%-24s0x%08x\tintval: %d\tTIM: 0x%x\n",
187 		"AR5K_BEACON", v, v & AR5K_BEACON_PERIOD,
188 		(v & AR5K_BEACON_TIM) >> AR5K_BEACON_TIM_S);
189 
190 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n",
191 		"AR5K_LAST_TSTP", ath5k_hw_reg_read(ah, AR5K_LAST_TSTP));
192 
193 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\n\n",
194 		"AR5K_BEACON_CNT", ath5k_hw_reg_read(ah, AR5K_BEACON_CNT));
195 
196 	v = ath5k_hw_reg_read(ah, AR5K_TIMER0);
197 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
198 		"AR5K_TIMER0 (TBTT)", v, v);
199 
200 	v = ath5k_hw_reg_read(ah, AR5K_TIMER1);
201 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
202 		"AR5K_TIMER1 (DMA)", v, v >> 3);
203 
204 	v = ath5k_hw_reg_read(ah, AR5K_TIMER2);
205 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
206 		"AR5K_TIMER2 (SWBA)", v, v >> 3);
207 
208 	v = ath5k_hw_reg_read(ah, AR5K_TIMER3);
209 	len += scnprintf(buf + len, sizeof(buf) - len, "%-24s0x%08x\tTU: %08x\n",
210 		"AR5K_TIMER3 (ATIM)", v, v);
211 
212 	tsf = ath5k_hw_get_tsf64(ah);
213 	len += scnprintf(buf + len, sizeof(buf) - len,
214 		"TSF\t\t0x%016llx\tTU: %08x\n",
215 		(unsigned long long)tsf, TSF_TO_TU(tsf));
216 
217 	if (len > sizeof(buf))
218 		len = sizeof(buf);
219 
220 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
221 }
222 
223 static ssize_t write_file_beacon(struct file *file,
224 				 const char __user *userbuf,
225 				 size_t count, loff_t *ppos)
226 {
227 	struct ath5k_hw *ah = file->private_data;
228 	char buf[20];
229 
230 	count = min_t(size_t, count, sizeof(buf) - 1);
231 	if (copy_from_user(buf, userbuf, count))
232 		return -EFAULT;
233 
234 	buf[count] = '\0';
235 	if (strncmp(buf, "disable", 7) == 0) {
236 		AR5K_REG_DISABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
237 		pr_info("debugfs disable beacons\n");
238 	} else if (strncmp(buf, "enable", 6) == 0) {
239 		AR5K_REG_ENABLE_BITS(ah, AR5K_BEACON, AR5K_BEACON_ENABLE);
240 		pr_info("debugfs enable beacons\n");
241 	}
242 	return count;
243 }
244 
245 static const struct file_operations fops_beacon = {
246 	.read = read_file_beacon,
247 	.write = write_file_beacon,
248 	.open = simple_open,
249 	.owner = THIS_MODULE,
250 	.llseek = default_llseek,
251 };
252 
253 
254 /* debugfs: reset */
255 
256 static ssize_t write_file_reset(struct file *file,
257 				 const char __user *userbuf,
258 				 size_t count, loff_t *ppos)
259 {
260 	struct ath5k_hw *ah = file->private_data;
261 	ATH5K_DBG(ah, ATH5K_DEBUG_RESET, "debug file triggered reset\n");
262 	ieee80211_queue_work(ah->hw, &ah->reset_work);
263 	return count;
264 }
265 
266 static const struct file_operations fops_reset = {
267 	.write = write_file_reset,
268 	.open = simple_open,
269 	.owner = THIS_MODULE,
270 	.llseek = noop_llseek,
271 };
272 
273 
274 /* debugfs: debug level */
275 
276 static const struct {
277 	enum ath5k_debug_level level;
278 	const char *name;
279 	const char *desc;
280 } dbg_info[] = {
281 	{ ATH5K_DEBUG_RESET,	"reset",	"reset and initialization" },
282 	{ ATH5K_DEBUG_INTR,	"intr",		"interrupt handling" },
283 	{ ATH5K_DEBUG_MODE,	"mode",		"mode init/setup" },
284 	{ ATH5K_DEBUG_XMIT,	"xmit",		"basic xmit operation" },
285 	{ ATH5K_DEBUG_BEACON,	"beacon",	"beacon handling" },
286 	{ ATH5K_DEBUG_CALIBRATE, "calib",	"periodic calibration" },
287 	{ ATH5K_DEBUG_TXPOWER,	"txpower",	"transmit power setting" },
288 	{ ATH5K_DEBUG_LED,	"led",		"LED management" },
289 	{ ATH5K_DEBUG_DUMPBANDS, "dumpbands",	"dump bands" },
290 	{ ATH5K_DEBUG_DMA,	"dma",		"dma start/stop" },
291 	{ ATH5K_DEBUG_ANI,	"ani",		"adaptive noise immunity" },
292 	{ ATH5K_DEBUG_DESC,	"desc",		"descriptor chains" },
293 	{ ATH5K_DEBUG_ANY,	"all",		"show all debug levels" },
294 };
295 
296 static ssize_t read_file_debug(struct file *file, char __user *user_buf,
297 				   size_t count, loff_t *ppos)
298 {
299 	struct ath5k_hw *ah = file->private_data;
300 	char buf[700];
301 	unsigned int len = 0;
302 	unsigned int i;
303 
304 	len += scnprintf(buf + len, sizeof(buf) - len,
305 		"DEBUG LEVEL: 0x%08x\n\n", ah->debug.level);
306 
307 	for (i = 0; i < ARRAY_SIZE(dbg_info) - 1; i++) {
308 		len += scnprintf(buf + len, sizeof(buf) - len,
309 			"%10s %c 0x%08x - %s\n", dbg_info[i].name,
310 			ah->debug.level & dbg_info[i].level ? '+' : ' ',
311 			dbg_info[i].level, dbg_info[i].desc);
312 	}
313 	len += scnprintf(buf + len, sizeof(buf) - len,
314 		"%10s %c 0x%08x - %s\n", dbg_info[i].name,
315 		ah->debug.level == dbg_info[i].level ? '+' : ' ',
316 		dbg_info[i].level, dbg_info[i].desc);
317 
318 	if (len > sizeof(buf))
319 		len = sizeof(buf);
320 
321 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
322 }
323 
324 static ssize_t write_file_debug(struct file *file,
325 				 const char __user *userbuf,
326 				 size_t count, loff_t *ppos)
327 {
328 	struct ath5k_hw *ah = file->private_data;
329 	unsigned int i;
330 	char buf[20];
331 
332 	count = min_t(size_t, count, sizeof(buf) - 1);
333 	if (copy_from_user(buf, userbuf, count))
334 		return -EFAULT;
335 
336 	buf[count] = '\0';
337 	for (i = 0; i < ARRAY_SIZE(dbg_info); i++) {
338 		if (strncmp(buf, dbg_info[i].name,
339 					strlen(dbg_info[i].name)) == 0) {
340 			ah->debug.level ^= dbg_info[i].level; /* toggle bit */
341 			break;
342 		}
343 	}
344 	return count;
345 }
346 
347 static const struct file_operations fops_debug = {
348 	.read = read_file_debug,
349 	.write = write_file_debug,
350 	.open = simple_open,
351 	.owner = THIS_MODULE,
352 	.llseek = default_llseek,
353 };
354 
355 
356 /* debugfs: antenna */
357 
358 static ssize_t read_file_antenna(struct file *file, char __user *user_buf,
359 				   size_t count, loff_t *ppos)
360 {
361 	struct ath5k_hw *ah = file->private_data;
362 	char buf[700];
363 	unsigned int len = 0;
364 	unsigned int i;
365 	unsigned int v;
366 
367 	len += scnprintf(buf + len, sizeof(buf) - len, "antenna mode\t%d\n",
368 		ah->ah_ant_mode);
369 	len += scnprintf(buf + len, sizeof(buf) - len, "default antenna\t%d\n",
370 		ah->ah_def_ant);
371 	len += scnprintf(buf + len, sizeof(buf) - len, "tx antenna\t%d\n",
372 		ah->ah_tx_ant);
373 
374 	len += scnprintf(buf + len, sizeof(buf) - len, "\nANTENNA\t\tRX\tTX\n");
375 	for (i = 1; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
376 		len += scnprintf(buf + len, sizeof(buf) - len,
377 			"[antenna %d]\t%d\t%d\n",
378 			i, ah->stats.antenna_rx[i], ah->stats.antenna_tx[i]);
379 	}
380 	len += scnprintf(buf + len, sizeof(buf) - len, "[invalid]\t%d\t%d\n",
381 			ah->stats.antenna_rx[0], ah->stats.antenna_tx[0]);
382 
383 	v = ath5k_hw_reg_read(ah, AR5K_DEFAULT_ANTENNA);
384 	len += scnprintf(buf + len, sizeof(buf) - len,
385 			"\nAR5K_DEFAULT_ANTENNA\t0x%08x\n", v);
386 
387 	v = ath5k_hw_reg_read(ah, AR5K_STA_ID1);
388 	len += scnprintf(buf + len, sizeof(buf) - len,
389 		"AR5K_STA_ID1_DEFAULT_ANTENNA\t%d\n",
390 		(v & AR5K_STA_ID1_DEFAULT_ANTENNA) != 0);
391 	len += scnprintf(buf + len, sizeof(buf) - len,
392 		"AR5K_STA_ID1_DESC_ANTENNA\t%d\n",
393 		(v & AR5K_STA_ID1_DESC_ANTENNA) != 0);
394 	len += scnprintf(buf + len, sizeof(buf) - len,
395 		"AR5K_STA_ID1_RTS_DEF_ANTENNA\t%d\n",
396 		(v & AR5K_STA_ID1_RTS_DEF_ANTENNA) != 0);
397 	len += scnprintf(buf + len, sizeof(buf) - len,
398 		"AR5K_STA_ID1_SELFGEN_DEF_ANT\t%d\n",
399 		(v & AR5K_STA_ID1_SELFGEN_DEF_ANT) != 0);
400 
401 	v = ath5k_hw_reg_read(ah, AR5K_PHY_AGCCTL);
402 	len += scnprintf(buf + len, sizeof(buf) - len,
403 		"\nAR5K_PHY_AGCCTL_OFDM_DIV_DIS\t%d\n",
404 		(v & AR5K_PHY_AGCCTL_OFDM_DIV_DIS) != 0);
405 
406 	v = ath5k_hw_reg_read(ah, AR5K_PHY_RESTART);
407 	len += scnprintf(buf + len, sizeof(buf) - len,
408 		"AR5K_PHY_RESTART_DIV_GC\t\t%x\n",
409 		(v & AR5K_PHY_RESTART_DIV_GC) >> AR5K_PHY_RESTART_DIV_GC_S);
410 
411 	v = ath5k_hw_reg_read(ah, AR5K_PHY_FAST_ANT_DIV);
412 	len += scnprintf(buf + len, sizeof(buf) - len,
413 		"AR5K_PHY_FAST_ANT_DIV_EN\t%d\n",
414 		(v & AR5K_PHY_FAST_ANT_DIV_EN) != 0);
415 
416 	v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_0);
417 	len += scnprintf(buf + len, sizeof(buf) - len,
418 			"\nAR5K_PHY_ANT_SWITCH_TABLE_0\t0x%08x\n", v);
419 	v = ath5k_hw_reg_read(ah, AR5K_PHY_ANT_SWITCH_TABLE_1);
420 	len += scnprintf(buf + len, sizeof(buf) - len,
421 			"AR5K_PHY_ANT_SWITCH_TABLE_1\t0x%08x\n", v);
422 
423 	if (len > sizeof(buf))
424 		len = sizeof(buf);
425 
426 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
427 }
428 
429 static ssize_t write_file_antenna(struct file *file,
430 				 const char __user *userbuf,
431 				 size_t count, loff_t *ppos)
432 {
433 	struct ath5k_hw *ah = file->private_data;
434 	unsigned int i;
435 	char buf[20];
436 
437 	count = min_t(size_t, count, sizeof(buf) - 1);
438 	if (copy_from_user(buf, userbuf, count))
439 		return -EFAULT;
440 
441 	buf[count] = '\0';
442 	if (strncmp(buf, "diversity", 9) == 0) {
443 		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_DEFAULT);
444 		pr_info("debug: enable diversity\n");
445 	} else if (strncmp(buf, "fixed-a", 7) == 0) {
446 		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_A);
447 		pr_info("debug: fixed antenna A\n");
448 	} else if (strncmp(buf, "fixed-b", 7) == 0) {
449 		ath5k_hw_set_antenna_mode(ah, AR5K_ANTMODE_FIXED_B);
450 		pr_info("debug: fixed antenna B\n");
451 	} else if (strncmp(buf, "clear", 5) == 0) {
452 		for (i = 0; i < ARRAY_SIZE(ah->stats.antenna_rx); i++) {
453 			ah->stats.antenna_rx[i] = 0;
454 			ah->stats.antenna_tx[i] = 0;
455 		}
456 		pr_info("debug: cleared antenna stats\n");
457 	}
458 	return count;
459 }
460 
461 static const struct file_operations fops_antenna = {
462 	.read = read_file_antenna,
463 	.write = write_file_antenna,
464 	.open = simple_open,
465 	.owner = THIS_MODULE,
466 	.llseek = default_llseek,
467 };
468 
469 /* debugfs: misc */
470 
471 static ssize_t read_file_misc(struct file *file, char __user *user_buf,
472 				   size_t count, loff_t *ppos)
473 {
474 	struct ath5k_hw *ah = file->private_data;
475 	char buf[700];
476 	unsigned int len = 0;
477 	u32 filt = ath5k_hw_get_rx_filter(ah);
478 
479 	len += scnprintf(buf + len, sizeof(buf) - len, "bssid-mask: %pM\n",
480 			ah->bssidmask);
481 	len += scnprintf(buf + len, sizeof(buf) - len, "filter-flags: 0x%x ",
482 			filt);
483 	if (filt & AR5K_RX_FILTER_UCAST)
484 		len += scnprintf(buf + len, sizeof(buf) - len, " UCAST");
485 	if (filt & AR5K_RX_FILTER_MCAST)
486 		len += scnprintf(buf + len, sizeof(buf) - len, " MCAST");
487 	if (filt & AR5K_RX_FILTER_BCAST)
488 		len += scnprintf(buf + len, sizeof(buf) - len, " BCAST");
489 	if (filt & AR5K_RX_FILTER_CONTROL)
490 		len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL");
491 	if (filt & AR5K_RX_FILTER_BEACON)
492 		len += scnprintf(buf + len, sizeof(buf) - len, " BEACON");
493 	if (filt & AR5K_RX_FILTER_PROM)
494 		len += scnprintf(buf + len, sizeof(buf) - len, " PROM");
495 	if (filt & AR5K_RX_FILTER_XRPOLL)
496 		len += scnprintf(buf + len, sizeof(buf) - len, " XRPOLL");
497 	if (filt & AR5K_RX_FILTER_PROBEREQ)
498 		len += scnprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
499 	if (filt & AR5K_RX_FILTER_PHYERR_5212)
500 		len += scnprintf(buf + len, sizeof(buf) - len, " PHYERR-5212");
501 	if (filt & AR5K_RX_FILTER_RADARERR_5212)
502 		len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5212");
503 	if (filt & AR5K_RX_FILTER_PHYERR_5211)
504 		snprintf(buf + len, sizeof(buf) - len, " PHYERR-5211");
505 	if (filt & AR5K_RX_FILTER_RADARERR_5211)
506 		len += scnprintf(buf + len, sizeof(buf) - len, " RADARERR-5211");
507 
508 	len += scnprintf(buf + len, sizeof(buf) - len, "\nopmode: %s (%d)\n",
509 			ath_opmode_to_string(ah->opmode), ah->opmode);
510 
511 	if (len > sizeof(buf))
512 		len = sizeof(buf);
513 
514 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
515 }
516 
517 static const struct file_operations fops_misc = {
518 	.read = read_file_misc,
519 	.open = simple_open,
520 	.owner = THIS_MODULE,
521 };
522 
523 
524 /* debugfs: frameerrors */
525 
526 static ssize_t read_file_frameerrors(struct file *file, char __user *user_buf,
527 				   size_t count, loff_t *ppos)
528 {
529 	struct ath5k_hw *ah = file->private_data;
530 	struct ath5k_statistics *st = &ah->stats;
531 	char buf[700];
532 	unsigned int len = 0;
533 	int i;
534 
535 	len += scnprintf(buf + len, sizeof(buf) - len,
536 			"RX\n---------------------\n");
537 	len += scnprintf(buf + len, sizeof(buf) - len, "CRC\t%u\t(%u%%)\n",
538 			st->rxerr_crc,
539 			st->rx_all_count > 0 ?
540 				st->rxerr_crc * 100 / st->rx_all_count : 0);
541 	len += scnprintf(buf + len, sizeof(buf) - len, "PHY\t%u\t(%u%%)\n",
542 			st->rxerr_phy,
543 			st->rx_all_count > 0 ?
544 				st->rxerr_phy * 100 / st->rx_all_count : 0);
545 	for (i = 0; i < 32; i++) {
546 		if (st->rxerr_phy_code[i])
547 			len += scnprintf(buf + len, sizeof(buf) - len,
548 				" phy_err[%u]\t%u\n",
549 				i, st->rxerr_phy_code[i]);
550 	}
551 
552 	len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
553 			st->rxerr_fifo,
554 			st->rx_all_count > 0 ?
555 				st->rxerr_fifo * 100 / st->rx_all_count : 0);
556 	len += scnprintf(buf + len, sizeof(buf) - len, "decrypt\t%u\t(%u%%)\n",
557 			st->rxerr_decrypt,
558 			st->rx_all_count > 0 ?
559 				st->rxerr_decrypt * 100 / st->rx_all_count : 0);
560 	len += scnprintf(buf + len, sizeof(buf) - len, "MIC\t%u\t(%u%%)\n",
561 			st->rxerr_mic,
562 			st->rx_all_count > 0 ?
563 				st->rxerr_mic * 100 / st->rx_all_count : 0);
564 	len += scnprintf(buf + len, sizeof(buf) - len, "process\t%u\t(%u%%)\n",
565 			st->rxerr_proc,
566 			st->rx_all_count > 0 ?
567 				st->rxerr_proc * 100 / st->rx_all_count : 0);
568 	len += scnprintf(buf + len, sizeof(buf) - len, "jumbo\t%u\t(%u%%)\n",
569 			st->rxerr_jumbo,
570 			st->rx_all_count > 0 ?
571 				st->rxerr_jumbo * 100 / st->rx_all_count : 0);
572 	len += scnprintf(buf + len, sizeof(buf) - len, "[RX all\t%u]\n",
573 			st->rx_all_count);
574 	len += scnprintf(buf + len, sizeof(buf) - len, "RX-all-bytes\t%u\n",
575 			st->rx_bytes_count);
576 
577 	len += scnprintf(buf + len, sizeof(buf) - len,
578 			"\nTX\n---------------------\n");
579 	len += scnprintf(buf + len, sizeof(buf) - len, "retry\t%u\t(%u%%)\n",
580 			st->txerr_retry,
581 			st->tx_all_count > 0 ?
582 				st->txerr_retry * 100 / st->tx_all_count : 0);
583 	len += scnprintf(buf + len, sizeof(buf) - len, "FIFO\t%u\t(%u%%)\n",
584 			st->txerr_fifo,
585 			st->tx_all_count > 0 ?
586 				st->txerr_fifo * 100 / st->tx_all_count : 0);
587 	len += scnprintf(buf + len, sizeof(buf) - len, "filter\t%u\t(%u%%)\n",
588 			st->txerr_filt,
589 			st->tx_all_count > 0 ?
590 				st->txerr_filt * 100 / st->tx_all_count : 0);
591 	len += scnprintf(buf + len, sizeof(buf) - len, "[TX all\t%u]\n",
592 			st->tx_all_count);
593 	len += scnprintf(buf + len, sizeof(buf) - len, "TX-all-bytes\t%u\n",
594 			st->tx_bytes_count);
595 
596 	if (len > sizeof(buf))
597 		len = sizeof(buf);
598 
599 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
600 }
601 
602 static ssize_t write_file_frameerrors(struct file *file,
603 				 const char __user *userbuf,
604 				 size_t count, loff_t *ppos)
605 {
606 	struct ath5k_hw *ah = file->private_data;
607 	struct ath5k_statistics *st = &ah->stats;
608 	char buf[20];
609 
610 	count = min_t(size_t, count, sizeof(buf) - 1);
611 	if (copy_from_user(buf, userbuf, count))
612 		return -EFAULT;
613 
614 	buf[count] = '\0';
615 	if (strncmp(buf, "clear", 5) == 0) {
616 		st->rxerr_crc = 0;
617 		st->rxerr_phy = 0;
618 		st->rxerr_fifo = 0;
619 		st->rxerr_decrypt = 0;
620 		st->rxerr_mic = 0;
621 		st->rxerr_proc = 0;
622 		st->rxerr_jumbo = 0;
623 		st->rx_all_count = 0;
624 		st->txerr_retry = 0;
625 		st->txerr_fifo = 0;
626 		st->txerr_filt = 0;
627 		st->tx_all_count = 0;
628 		pr_info("debug: cleared frameerrors stats\n");
629 	}
630 	return count;
631 }
632 
633 static const struct file_operations fops_frameerrors = {
634 	.read = read_file_frameerrors,
635 	.write = write_file_frameerrors,
636 	.open = simple_open,
637 	.owner = THIS_MODULE,
638 	.llseek = default_llseek,
639 };
640 
641 
642 /* debugfs: ani */
643 
644 static ssize_t read_file_ani(struct file *file, char __user *user_buf,
645 				   size_t count, loff_t *ppos)
646 {
647 	struct ath5k_hw *ah = file->private_data;
648 	struct ath5k_statistics *st = &ah->stats;
649 	struct ath5k_ani_state *as = &ah->ani_state;
650 
651 	char buf[700];
652 	unsigned int len = 0;
653 
654 	len += scnprintf(buf + len, sizeof(buf) - len,
655 			"HW has PHY error counters:\t%s\n",
656 			ah->ah_capabilities.cap_has_phyerr_counters ?
657 			"yes" : "no");
658 	len += scnprintf(buf + len, sizeof(buf) - len,
659 			"HW max spur immunity level:\t%d\n",
660 			as->max_spur_level);
661 	len += scnprintf(buf + len, sizeof(buf) - len,
662 		"\nANI state\n--------------------------------------------\n");
663 	len += scnprintf(buf + len, sizeof(buf) - len, "operating mode:\t\t\t");
664 	switch (as->ani_mode) {
665 	case ATH5K_ANI_MODE_OFF:
666 		len += scnprintf(buf + len, sizeof(buf) - len, "OFF\n");
667 		break;
668 	case ATH5K_ANI_MODE_MANUAL_LOW:
669 		len += scnprintf(buf + len, sizeof(buf) - len,
670 			"MANUAL LOW\n");
671 		break;
672 	case ATH5K_ANI_MODE_MANUAL_HIGH:
673 		len += scnprintf(buf + len, sizeof(buf) - len,
674 			"MANUAL HIGH\n");
675 		break;
676 	case ATH5K_ANI_MODE_AUTO:
677 		len += scnprintf(buf + len, sizeof(buf) - len, "AUTO\n");
678 		break;
679 	default:
680 		len += scnprintf(buf + len, sizeof(buf) - len,
681 			"??? (not good)\n");
682 		break;
683 	}
684 	len += scnprintf(buf + len, sizeof(buf) - len,
685 			"noise immunity level:\t\t%d\n",
686 			as->noise_imm_level);
687 	len += scnprintf(buf + len, sizeof(buf) - len,
688 			"spur immunity level:\t\t%d\n",
689 			as->spur_level);
690 	len += scnprintf(buf + len, sizeof(buf) - len,
691 			"firstep level:\t\t\t%d\n",
692 			as->firstep_level);
693 	len += scnprintf(buf + len, sizeof(buf) - len,
694 			"OFDM weak signal detection:\t%s\n",
695 			as->ofdm_weak_sig ? "on" : "off");
696 	len += scnprintf(buf + len, sizeof(buf) - len,
697 			"CCK weak signal detection:\t%s\n",
698 			as->cck_weak_sig ? "on" : "off");
699 
700 	len += scnprintf(buf + len, sizeof(buf) - len,
701 			"\nMIB INTERRUPTS:\t\t%u\n",
702 			st->mib_intr);
703 	len += scnprintf(buf + len, sizeof(buf) - len,
704 			"beacon RSSI average:\t%d\n",
705 			(int)ewma_beacon_rssi_read(&ah->ah_beacon_rssi_avg));
706 
707 #define CC_PRINT(_struct, _field) \
708 	_struct._field, \
709 	_struct.cycles > 0 ? \
710 	_struct._field * 100 / _struct.cycles : 0
711 
712 	len += scnprintf(buf + len, sizeof(buf) - len,
713 			"profcnt tx\t\t%u\t(%d%%)\n",
714 			CC_PRINT(as->last_cc, tx_frame));
715 	len += scnprintf(buf + len, sizeof(buf) - len,
716 			"profcnt rx\t\t%u\t(%d%%)\n",
717 			CC_PRINT(as->last_cc, rx_frame));
718 	len += scnprintf(buf + len, sizeof(buf) - len,
719 			"profcnt busy\t\t%u\t(%d%%)\n",
720 			CC_PRINT(as->last_cc, rx_busy));
721 #undef CC_PRINT
722 	len += scnprintf(buf + len, sizeof(buf) - len, "profcnt cycles\t\t%u\n",
723 			as->last_cc.cycles);
724 	len += scnprintf(buf + len, sizeof(buf) - len,
725 			"listen time\t\t%d\tlast: %d\n",
726 			as->listen_time, as->last_listen);
727 	len += scnprintf(buf + len, sizeof(buf) - len,
728 			"OFDM errors\t\t%u\tlast: %u\tsum: %u\n",
729 			as->ofdm_errors, as->last_ofdm_errors,
730 			as->sum_ofdm_errors);
731 	len += scnprintf(buf + len, sizeof(buf) - len,
732 			"CCK errors\t\t%u\tlast: %u\tsum: %u\n",
733 			as->cck_errors, as->last_cck_errors,
734 			as->sum_cck_errors);
735 	len += scnprintf(buf + len, sizeof(buf) - len,
736 			"AR5K_PHYERR_CNT1\t%x\t(=%d)\n",
737 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1),
738 			ATH5K_ANI_OFDM_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
739 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT1)));
740 	len += scnprintf(buf + len, sizeof(buf) - len,
741 			"AR5K_PHYERR_CNT2\t%x\t(=%d)\n",
742 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2),
743 			ATH5K_ANI_CCK_TRIG_HIGH - (ATH5K_PHYERR_CNT_MAX -
744 			ath5k_hw_reg_read(ah, AR5K_PHYERR_CNT2)));
745 
746 	if (len > sizeof(buf))
747 		len = sizeof(buf);
748 
749 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
750 }
751 
752 static ssize_t write_file_ani(struct file *file,
753 				 const char __user *userbuf,
754 				 size_t count, loff_t *ppos)
755 {
756 	struct ath5k_hw *ah = file->private_data;
757 	char buf[20];
758 
759 	count = min_t(size_t, count, sizeof(buf) - 1);
760 	if (copy_from_user(buf, userbuf, count))
761 		return -EFAULT;
762 
763 	buf[count] = '\0';
764 	if (strncmp(buf, "sens-low", 8) == 0) {
765 		ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_HIGH);
766 	} else if (strncmp(buf, "sens-high", 9) == 0) {
767 		ath5k_ani_init(ah, ATH5K_ANI_MODE_MANUAL_LOW);
768 	} else if (strncmp(buf, "ani-off", 7) == 0) {
769 		ath5k_ani_init(ah, ATH5K_ANI_MODE_OFF);
770 	} else if (strncmp(buf, "ani-on", 6) == 0) {
771 		ath5k_ani_init(ah, ATH5K_ANI_MODE_AUTO);
772 	} else if (strncmp(buf, "noise-low", 9) == 0) {
773 		ath5k_ani_set_noise_immunity_level(ah, 0);
774 	} else if (strncmp(buf, "noise-high", 10) == 0) {
775 		ath5k_ani_set_noise_immunity_level(ah,
776 						   ATH5K_ANI_MAX_NOISE_IMM_LVL);
777 	} else if (strncmp(buf, "spur-low", 8) == 0) {
778 		ath5k_ani_set_spur_immunity_level(ah, 0);
779 	} else if (strncmp(buf, "spur-high", 9) == 0) {
780 		ath5k_ani_set_spur_immunity_level(ah,
781 						  ah->ani_state.max_spur_level);
782 	} else if (strncmp(buf, "fir-low", 7) == 0) {
783 		ath5k_ani_set_firstep_level(ah, 0);
784 	} else if (strncmp(buf, "fir-high", 8) == 0) {
785 		ath5k_ani_set_firstep_level(ah, ATH5K_ANI_MAX_FIRSTEP_LVL);
786 	} else if (strncmp(buf, "ofdm-off", 8) == 0) {
787 		ath5k_ani_set_ofdm_weak_signal_detection(ah, false);
788 	} else if (strncmp(buf, "ofdm-on", 7) == 0) {
789 		ath5k_ani_set_ofdm_weak_signal_detection(ah, true);
790 	} else if (strncmp(buf, "cck-off", 7) == 0) {
791 		ath5k_ani_set_cck_weak_signal_detection(ah, false);
792 	} else if (strncmp(buf, "cck-on", 6) == 0) {
793 		ath5k_ani_set_cck_weak_signal_detection(ah, true);
794 	}
795 	return count;
796 }
797 
798 static const struct file_operations fops_ani = {
799 	.read = read_file_ani,
800 	.write = write_file_ani,
801 	.open = simple_open,
802 	.owner = THIS_MODULE,
803 	.llseek = default_llseek,
804 };
805 
806 
807 /* debugfs: queues etc */
808 
809 static ssize_t read_file_queue(struct file *file, char __user *user_buf,
810 				   size_t count, loff_t *ppos)
811 {
812 	struct ath5k_hw *ah = file->private_data;
813 	char buf[700];
814 	unsigned int len = 0;
815 
816 	struct ath5k_txq *txq;
817 	struct ath5k_buf *bf, *bf0;
818 	int i, n;
819 
820 	len += scnprintf(buf + len, sizeof(buf) - len,
821 			"available txbuffers: %d\n", ah->txbuf_len);
822 
823 	for (i = 0; i < ARRAY_SIZE(ah->txqs); i++) {
824 		txq = &ah->txqs[i];
825 
826 		len += scnprintf(buf + len, sizeof(buf) - len,
827 			"%02d: %ssetup\n", i, txq->setup ? "" : "not ");
828 
829 		if (!txq->setup)
830 			continue;
831 
832 		n = 0;
833 		spin_lock_bh(&txq->lock);
834 		list_for_each_entry_safe(bf, bf0, &txq->q, list)
835 			n++;
836 		spin_unlock_bh(&txq->lock);
837 
838 		len += scnprintf(buf + len, sizeof(buf) - len,
839 				"  len: %d bufs: %d\n", txq->txq_len, n);
840 		len += scnprintf(buf + len, sizeof(buf) - len,
841 				"  stuck: %d\n", txq->txq_stuck);
842 	}
843 
844 	if (len > sizeof(buf))
845 		len = sizeof(buf);
846 
847 	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
848 }
849 
850 static ssize_t write_file_queue(struct file *file,
851 				 const char __user *userbuf,
852 				 size_t count, loff_t *ppos)
853 {
854 	struct ath5k_hw *ah = file->private_data;
855 	char buf[20];
856 
857 	count = min_t(size_t, count, sizeof(buf) - 1);
858 	if (copy_from_user(buf, userbuf, count))
859 		return -EFAULT;
860 
861 	buf[count] = '\0';
862 	if (strncmp(buf, "start", 5) == 0)
863 		ieee80211_wake_queues(ah->hw);
864 	else if (strncmp(buf, "stop", 4) == 0)
865 		ieee80211_stop_queues(ah->hw);
866 
867 	return count;
868 }
869 
870 
871 static const struct file_operations fops_queue = {
872 	.read = read_file_queue,
873 	.write = write_file_queue,
874 	.open = simple_open,
875 	.owner = THIS_MODULE,
876 	.llseek = default_llseek,
877 };
878 
879 /* debugfs: eeprom */
880 
881 struct eeprom_private {
882 	u16 *buf;
883 	int len;
884 };
885 
886 static int open_file_eeprom(struct inode *inode, struct file *file)
887 {
888 	struct eeprom_private *ep;
889 	struct ath5k_hw *ah = inode->i_private;
890 	bool res;
891 	int i, ret;
892 	u32 eesize;	/* NB: in 16-bit words */
893 	u16 val, *buf;
894 
895 	/* Get eeprom size */
896 
897 	res = ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_UPPER, &val);
898 	if (!res)
899 		return -EACCES;
900 
901 	if (val == 0) {
902 		eesize = AR5K_EEPROM_INFO_MAX + AR5K_EEPROM_INFO_BASE;
903 	} else {
904 		eesize = (val & AR5K_EEPROM_SIZE_UPPER_MASK) <<
905 			AR5K_EEPROM_SIZE_ENDLOC_SHIFT;
906 		ath5k_hw_nvram_read(ah, AR5K_EEPROM_SIZE_LOWER, &val);
907 		eesize = eesize | val;
908 	}
909 
910 	if (eesize > 4096)
911 		return -EINVAL;
912 
913 	/* Create buffer and read in eeprom */
914 
915 	buf = vmalloc(array_size(eesize, 2));
916 	if (!buf) {
917 		ret = -ENOMEM;
918 		goto err;
919 	}
920 
921 	for (i = 0; i < eesize; ++i) {
922 		if (!ath5k_hw_nvram_read(ah, i, &val)) {
923 			ret = -EIO;
924 			goto freebuf;
925 		}
926 		buf[i] = val;
927 	}
928 
929 	/* Create private struct and assign to file */
930 
931 	ep = kmalloc(sizeof(*ep), GFP_KERNEL);
932 	if (!ep) {
933 		ret = -ENOMEM;
934 		goto freebuf;
935 	}
936 
937 	ep->buf = buf;
938 	ep->len = eesize * 2;
939 
940 	file->private_data = (void *)ep;
941 
942 	return 0;
943 
944 freebuf:
945 	vfree(buf);
946 err:
947 	return ret;
948 
949 }
950 
951 static ssize_t read_file_eeprom(struct file *file, char __user *user_buf,
952 				   size_t count, loff_t *ppos)
953 {
954 	struct eeprom_private *ep = file->private_data;
955 
956 	return simple_read_from_buffer(user_buf, count, ppos, ep->buf, ep->len);
957 }
958 
959 static int release_file_eeprom(struct inode *inode, struct file *file)
960 {
961 	struct eeprom_private *ep = file->private_data;
962 
963 	vfree(ep->buf);
964 	kfree(ep);
965 
966 	return 0;
967 }
968 
969 static const struct file_operations fops_eeprom = {
970 	.open = open_file_eeprom,
971 	.read = read_file_eeprom,
972 	.release = release_file_eeprom,
973 	.owner = THIS_MODULE,
974 };
975 
976 
977 void
978 ath5k_debug_init_device(struct ath5k_hw *ah)
979 {
980 	struct dentry *phydir;
981 
982 	ah->debug.level = ath5k_debug;
983 
984 	phydir = debugfs_create_dir("ath5k", ah->hw->wiphy->debugfsdir);
985 	if (!phydir)
986 		return;
987 
988 	debugfs_create_file("debug", 0600, phydir, ah, &fops_debug);
989 	debugfs_create_file("registers", 0400, phydir, ah, &registers_fops);
990 	debugfs_create_file("beacon", 0600, phydir, ah, &fops_beacon);
991 	debugfs_create_file("reset", 0200, phydir, ah, &fops_reset);
992 	debugfs_create_file("antenna", 0600, phydir, ah, &fops_antenna);
993 	debugfs_create_file("misc", 0400, phydir, ah, &fops_misc);
994 	debugfs_create_file("eeprom", 0400, phydir, ah, &fops_eeprom);
995 	debugfs_create_file("frameerrors", 0600, phydir, ah, &fops_frameerrors);
996 	debugfs_create_file("ani", 0600, phydir, ah, &fops_ani);
997 	debugfs_create_file("queue", 0600, phydir, ah, &fops_queue);
998 	debugfs_create_bool("32khz_clock", 0600, phydir,
999 			    &ah->ah_use_32khz_clock);
1000 }
1001 
1002 /* functions used in other places */
1003 
1004 void
1005 ath5k_debug_dump_bands(struct ath5k_hw *ah)
1006 {
1007 	unsigned int b, i;
1008 
1009 	if (likely(!(ah->debug.level & ATH5K_DEBUG_DUMPBANDS)))
1010 		return;
1011 
1012 	for (b = 0; b < NUM_NL80211_BANDS; b++) {
1013 		struct ieee80211_supported_band *band = &ah->sbands[b];
1014 		char bname[6];
1015 		switch (band->band) {
1016 		case NL80211_BAND_2GHZ:
1017 			strcpy(bname, "2 GHz");
1018 			break;
1019 		case NL80211_BAND_5GHZ:
1020 			strcpy(bname, "5 GHz");
1021 			break;
1022 		default:
1023 			printk(KERN_DEBUG "Band not supported: %d\n",
1024 				band->band);
1025 			return;
1026 		}
1027 		printk(KERN_DEBUG "Band %s: channels %d, rates %d\n", bname,
1028 				band->n_channels, band->n_bitrates);
1029 		printk(KERN_DEBUG " channels:\n");
1030 		for (i = 0; i < band->n_channels; i++)
1031 			printk(KERN_DEBUG "  %3d %d %.4x %.4x\n",
1032 					ieee80211_frequency_to_channel(
1033 						band->channels[i].center_freq),
1034 					band->channels[i].center_freq,
1035 					band->channels[i].hw_value,
1036 					band->channels[i].flags);
1037 		printk(KERN_DEBUG " rates:\n");
1038 		for (i = 0; i < band->n_bitrates; i++)
1039 			printk(KERN_DEBUG "  %4d %.4x %.4x %.4x\n",
1040 					band->bitrates[i].bitrate,
1041 					band->bitrates[i].hw_value,
1042 					band->bitrates[i].flags,
1043 					band->bitrates[i].hw_value_short);
1044 	}
1045 }
1046 
1047 static inline void
1048 ath5k_debug_printrxbuf(struct ath5k_buf *bf, int done,
1049 		       struct ath5k_rx_status *rs)
1050 {
1051 	struct ath5k_desc *ds = bf->desc;
1052 	struct ath5k_hw_all_rx_desc *rd = &ds->ud.ds_rx;
1053 
1054 	printk(KERN_DEBUG "R (%p %llx) %08x %08x %08x %08x %08x %08x %c\n",
1055 		ds, (unsigned long long)bf->daddr,
1056 		ds->ds_link, ds->ds_data,
1057 		rd->rx_ctl.rx_control_0, rd->rx_ctl.rx_control_1,
1058 		rd->rx_stat.rx_status_0, rd->rx_stat.rx_status_1,
1059 		!done ? ' ' : (rs->rs_status == 0) ? '*' : '!');
1060 }
1061 
1062 void
1063 ath5k_debug_printrxbuffs(struct ath5k_hw *ah)
1064 {
1065 	struct ath5k_desc *ds;
1066 	struct ath5k_buf *bf;
1067 	struct ath5k_rx_status rs = {};
1068 	int status;
1069 
1070 	if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1071 		return;
1072 
1073 	printk(KERN_DEBUG "rxdp %x, rxlink %p\n",
1074 		ath5k_hw_get_rxdp(ah), ah->rxlink);
1075 
1076 	spin_lock_bh(&ah->rxbuflock);
1077 	list_for_each_entry(bf, &ah->rxbuf, list) {
1078 		ds = bf->desc;
1079 		status = ah->ah_proc_rx_desc(ah, ds, &rs);
1080 		if (!status)
1081 			ath5k_debug_printrxbuf(bf, status == 0, &rs);
1082 	}
1083 	spin_unlock_bh(&ah->rxbuflock);
1084 }
1085 
1086 void
1087 ath5k_debug_printtxbuf(struct ath5k_hw *ah, struct ath5k_buf *bf)
1088 {
1089 	struct ath5k_desc *ds = bf->desc;
1090 	struct ath5k_hw_5212_tx_desc *td = &ds->ud.ds_tx5212;
1091 	struct ath5k_tx_status ts = {};
1092 	int done;
1093 
1094 	if (likely(!(ah->debug.level & ATH5K_DEBUG_DESC)))
1095 		return;
1096 
1097 	done = ah->ah_proc_tx_desc(ah, bf->desc, &ts);
1098 
1099 	printk(KERN_DEBUG "T (%p %llx) %08x %08x %08x %08x %08x %08x %08x "
1100 		"%08x %c\n", ds, (unsigned long long)bf->daddr, ds->ds_link,
1101 		ds->ds_data, td->tx_ctl.tx_control_0, td->tx_ctl.tx_control_1,
1102 		td->tx_ctl.tx_control_2, td->tx_ctl.tx_control_3,
1103 		td->tx_stat.tx_status_0, td->tx_stat.tx_status_1,
1104 		done ? ' ' : (ts.ts_status == 0) ? '*' : '!');
1105 }
1106