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f65c0825 SM |
1 | /* |
2 | * Copyright (c) 2013 Qualcomm Atheros, Inc. | |
3 | * | |
4 | * Permission to use, copy, modify, and/or distribute this software for any | |
5 | * purpose with or without fee is hereby granted, provided that the above | |
6 | * copyright notice and this permission notice appear in all copies. | |
7 | * | |
8 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
9 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
10 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
11 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
12 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
13 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
14 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
15 | */ | |
16 | ||
17 | #include <linux/relay.h> | |
18 | #include "ath9k.h" | |
19 | ||
20 | static s8 fix_rssi_inv_only(u8 rssi_val) | |
21 | { | |
22 | if (rssi_val == 128) | |
23 | rssi_val = 0; | |
24 | return (s8) rssi_val; | |
25 | } | |
26 | ||
27 | static void ath_debug_send_fft_sample(struct ath_softc *sc, | |
28 | struct fft_sample_tlv *fft_sample_tlv) | |
29 | { | |
30 | int length; | |
31 | if (!sc->rfs_chan_spec_scan) | |
32 | return; | |
33 | ||
34 | length = __be16_to_cpu(fft_sample_tlv->length) + | |
35 | sizeof(*fft_sample_tlv); | |
36 | relay_write(sc->rfs_chan_spec_scan, fft_sample_tlv, length); | |
37 | } | |
38 | ||
39 | /* returns 1 if this was a spectral frame, even if not handled. */ | |
40 | int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr, | |
41 | struct ath_rx_status *rs, u64 tsf) | |
42 | { | |
43 | struct ath_hw *ah = sc->sc_ah; | |
44 | u8 num_bins, *bins, *vdata = (u8 *)hdr; | |
45 | struct fft_sample_ht20 fft_sample_20; | |
46 | struct fft_sample_ht20_40 fft_sample_40; | |
47 | struct fft_sample_tlv *tlv; | |
48 | struct ath_radar_info *radar_info; | |
49 | int len = rs->rs_datalen; | |
50 | int dc_pos; | |
51 | u16 fft_len, length, freq = ah->curchan->chan->center_freq; | |
52 | enum nl80211_channel_type chan_type; | |
53 | ||
54 | /* AR9280 and before report via ATH9K_PHYERR_RADAR, AR93xx and newer | |
55 | * via ATH9K_PHYERR_SPECTRAL. Haven't seen ATH9K_PHYERR_FALSE_RADAR_EXT | |
56 | * yet, but this is supposed to be possible as well. | |
57 | */ | |
58 | if (rs->rs_phyerr != ATH9K_PHYERR_RADAR && | |
59 | rs->rs_phyerr != ATH9K_PHYERR_FALSE_RADAR_EXT && | |
60 | rs->rs_phyerr != ATH9K_PHYERR_SPECTRAL) | |
61 | return 0; | |
62 | ||
63 | /* check if spectral scan bit is set. This does not have to be checked | |
64 | * if received through a SPECTRAL phy error, but shouldn't hurt. | |
65 | */ | |
66 | radar_info = ((struct ath_radar_info *)&vdata[len]) - 1; | |
67 | if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK)) | |
68 | return 0; | |
69 | ||
70 | chan_type = cfg80211_get_chandef_type(&sc->hw->conf.chandef); | |
71 | if ((chan_type == NL80211_CHAN_HT40MINUS) || | |
72 | (chan_type == NL80211_CHAN_HT40PLUS)) { | |
73 | fft_len = SPECTRAL_HT20_40_TOTAL_DATA_LEN; | |
74 | num_bins = SPECTRAL_HT20_40_NUM_BINS; | |
75 | bins = (u8 *)fft_sample_40.data; | |
76 | } else { | |
77 | fft_len = SPECTRAL_HT20_TOTAL_DATA_LEN; | |
78 | num_bins = SPECTRAL_HT20_NUM_BINS; | |
79 | bins = (u8 *)fft_sample_20.data; | |
80 | } | |
81 | ||
82 | /* Variation in the data length is possible and will be fixed later */ | |
83 | if ((len > fft_len + 2) || (len < fft_len - 1)) | |
84 | return 1; | |
85 | ||
86 | switch (len - fft_len) { | |
87 | case 0: | |
88 | /* length correct, nothing to do. */ | |
89 | memcpy(bins, vdata, num_bins); | |
90 | break; | |
91 | case -1: | |
92 | /* first byte missing, duplicate it. */ | |
93 | memcpy(&bins[1], vdata, num_bins - 1); | |
94 | bins[0] = vdata[0]; | |
95 | break; | |
96 | case 2: | |
97 | /* MAC added 2 extra bytes at bin 30 and 32, remove them. */ | |
98 | memcpy(bins, vdata, 30); | |
99 | bins[30] = vdata[31]; | |
100 | memcpy(&bins[31], &vdata[33], num_bins - 31); | |
101 | break; | |
102 | case 1: | |
103 | /* MAC added 2 extra bytes AND first byte is missing. */ | |
104 | bins[0] = vdata[0]; | |
105 | memcpy(&bins[1], vdata, 30); | |
106 | bins[31] = vdata[31]; | |
107 | memcpy(&bins[32], &vdata[33], num_bins - 32); | |
108 | break; | |
109 | default: | |
110 | return 1; | |
111 | } | |
112 | ||
113 | /* DC value (value in the middle) is the blind spot of the spectral | |
114 | * sample and invalid, interpolate it. | |
115 | */ | |
116 | dc_pos = num_bins / 2; | |
117 | bins[dc_pos] = (bins[dc_pos + 1] + bins[dc_pos - 1]) / 2; | |
118 | ||
119 | if ((chan_type == NL80211_CHAN_HT40MINUS) || | |
120 | (chan_type == NL80211_CHAN_HT40PLUS)) { | |
121 | s8 lower_rssi, upper_rssi; | |
122 | s16 ext_nf; | |
123 | u8 lower_max_index, upper_max_index; | |
124 | u8 lower_bitmap_w, upper_bitmap_w; | |
125 | u16 lower_mag, upper_mag; | |
126 | struct ath9k_hw_cal_data *caldata = ah->caldata; | |
127 | struct ath_ht20_40_mag_info *mag_info; | |
128 | ||
129 | if (caldata) | |
130 | ext_nf = ath9k_hw_getchan_noise(ah, ah->curchan, | |
131 | caldata->nfCalHist[3].privNF); | |
132 | else | |
133 | ext_nf = ATH_DEFAULT_NOISE_FLOOR; | |
134 | ||
135 | length = sizeof(fft_sample_40) - sizeof(struct fft_sample_tlv); | |
136 | fft_sample_40.tlv.type = ATH_FFT_SAMPLE_HT20_40; | |
137 | fft_sample_40.tlv.length = __cpu_to_be16(length); | |
138 | fft_sample_40.freq = __cpu_to_be16(freq); | |
139 | fft_sample_40.channel_type = chan_type; | |
140 | ||
141 | if (chan_type == NL80211_CHAN_HT40PLUS) { | |
142 | lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]); | |
143 | upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]); | |
144 | ||
145 | fft_sample_40.lower_noise = ah->noise; | |
146 | fft_sample_40.upper_noise = ext_nf; | |
147 | } else { | |
148 | lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ext[0]); | |
149 | upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]); | |
150 | ||
151 | fft_sample_40.lower_noise = ext_nf; | |
152 | fft_sample_40.upper_noise = ah->noise; | |
153 | } | |
154 | fft_sample_40.lower_rssi = lower_rssi; | |
155 | fft_sample_40.upper_rssi = upper_rssi; | |
156 | ||
157 | mag_info = ((struct ath_ht20_40_mag_info *)radar_info) - 1; | |
158 | lower_mag = spectral_max_magnitude(mag_info->lower_bins); | |
159 | upper_mag = spectral_max_magnitude(mag_info->upper_bins); | |
160 | fft_sample_40.lower_max_magnitude = __cpu_to_be16(lower_mag); | |
161 | fft_sample_40.upper_max_magnitude = __cpu_to_be16(upper_mag); | |
162 | lower_max_index = spectral_max_index(mag_info->lower_bins); | |
163 | upper_max_index = spectral_max_index(mag_info->upper_bins); | |
164 | fft_sample_40.lower_max_index = lower_max_index; | |
165 | fft_sample_40.upper_max_index = upper_max_index; | |
166 | lower_bitmap_w = spectral_bitmap_weight(mag_info->lower_bins); | |
167 | upper_bitmap_w = spectral_bitmap_weight(mag_info->upper_bins); | |
168 | fft_sample_40.lower_bitmap_weight = lower_bitmap_w; | |
169 | fft_sample_40.upper_bitmap_weight = upper_bitmap_w; | |
170 | fft_sample_40.max_exp = mag_info->max_exp & 0xf; | |
171 | ||
172 | fft_sample_40.tsf = __cpu_to_be64(tsf); | |
173 | ||
174 | tlv = (struct fft_sample_tlv *)&fft_sample_40; | |
175 | } else { | |
176 | u8 max_index, bitmap_w; | |
177 | u16 magnitude; | |
178 | struct ath_ht20_mag_info *mag_info; | |
179 | ||
180 | length = sizeof(fft_sample_20) - sizeof(struct fft_sample_tlv); | |
181 | fft_sample_20.tlv.type = ATH_FFT_SAMPLE_HT20; | |
182 | fft_sample_20.tlv.length = __cpu_to_be16(length); | |
183 | fft_sample_20.freq = __cpu_to_be16(freq); | |
184 | ||
185 | fft_sample_20.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl[0]); | |
186 | fft_sample_20.noise = ah->noise; | |
187 | ||
188 | mag_info = ((struct ath_ht20_mag_info *)radar_info) - 1; | |
189 | magnitude = spectral_max_magnitude(mag_info->all_bins); | |
190 | fft_sample_20.max_magnitude = __cpu_to_be16(magnitude); | |
191 | max_index = spectral_max_index(mag_info->all_bins); | |
192 | fft_sample_20.max_index = max_index; | |
193 | bitmap_w = spectral_bitmap_weight(mag_info->all_bins); | |
194 | fft_sample_20.bitmap_weight = bitmap_w; | |
195 | fft_sample_20.max_exp = mag_info->max_exp & 0xf; | |
196 | ||
197 | fft_sample_20.tsf = __cpu_to_be64(tsf); | |
198 | ||
199 | tlv = (struct fft_sample_tlv *)&fft_sample_20; | |
200 | } | |
201 | ||
202 | ath_debug_send_fft_sample(sc, tlv); | |
203 | ||
204 | return 1; | |
205 | } | |
206 | ||
207 | /*********************/ | |
208 | /* spectral_scan_ctl */ | |
209 | /*********************/ | |
210 | ||
211 | static ssize_t read_file_spec_scan_ctl(struct file *file, char __user *user_buf, | |
212 | size_t count, loff_t *ppos) | |
213 | { | |
214 | struct ath_softc *sc = file->private_data; | |
215 | char *mode = ""; | |
216 | unsigned int len; | |
217 | ||
218 | switch (sc->spectral_mode) { | |
219 | case SPECTRAL_DISABLED: | |
220 | mode = "disable"; | |
221 | break; | |
222 | case SPECTRAL_BACKGROUND: | |
223 | mode = "background"; | |
224 | break; | |
225 | case SPECTRAL_CHANSCAN: | |
226 | mode = "chanscan"; | |
227 | break; | |
228 | case SPECTRAL_MANUAL: | |
229 | mode = "manual"; | |
230 | break; | |
231 | } | |
232 | len = strlen(mode); | |
233 | return simple_read_from_buffer(user_buf, count, ppos, mode, len); | |
234 | } | |
235 | ||
236 | static ssize_t write_file_spec_scan_ctl(struct file *file, | |
237 | const char __user *user_buf, | |
238 | size_t count, loff_t *ppos) | |
239 | { | |
240 | struct ath_softc *sc = file->private_data; | |
241 | struct ath_common *common = ath9k_hw_common(sc->sc_ah); | |
242 | char buf[32]; | |
243 | ssize_t len; | |
244 | ||
245 | if (config_enabled(CONFIG_ATH9K_TX99)) | |
246 | return -EOPNOTSUPP; | |
247 | ||
248 | len = min(count, sizeof(buf) - 1); | |
249 | if (copy_from_user(buf, user_buf, len)) | |
250 | return -EFAULT; | |
251 | ||
252 | buf[len] = '\0'; | |
253 | ||
254 | if (strncmp("trigger", buf, 7) == 0) { | |
255 | ath9k_spectral_scan_trigger(sc->hw); | |
256 | } else if (strncmp("background", buf, 9) == 0) { | |
257 | ath9k_spectral_scan_config(sc->hw, SPECTRAL_BACKGROUND); | |
258 | ath_dbg(common, CONFIG, "spectral scan: background mode enabled\n"); | |
259 | } else if (strncmp("chanscan", buf, 8) == 0) { | |
260 | ath9k_spectral_scan_config(sc->hw, SPECTRAL_CHANSCAN); | |
261 | ath_dbg(common, CONFIG, "spectral scan: channel scan mode enabled\n"); | |
262 | } else if (strncmp("manual", buf, 6) == 0) { | |
263 | ath9k_spectral_scan_config(sc->hw, SPECTRAL_MANUAL); | |
264 | ath_dbg(common, CONFIG, "spectral scan: manual mode enabled\n"); | |
265 | } else if (strncmp("disable", buf, 7) == 0) { | |
266 | ath9k_spectral_scan_config(sc->hw, SPECTRAL_DISABLED); | |
267 | ath_dbg(common, CONFIG, "spectral scan: disabled\n"); | |
268 | } else { | |
269 | return -EINVAL; | |
270 | } | |
271 | ||
272 | return count; | |
273 | } | |
274 | ||
275 | static const struct file_operations fops_spec_scan_ctl = { | |
276 | .read = read_file_spec_scan_ctl, | |
277 | .write = write_file_spec_scan_ctl, | |
278 | .open = simple_open, | |
279 | .owner = THIS_MODULE, | |
280 | .llseek = default_llseek, | |
281 | }; | |
282 | ||
283 | /*************************/ | |
284 | /* spectral_short_repeat */ | |
285 | /*************************/ | |
286 | ||
287 | static ssize_t read_file_spectral_short_repeat(struct file *file, | |
288 | char __user *user_buf, | |
289 | size_t count, loff_t *ppos) | |
290 | { | |
291 | struct ath_softc *sc = file->private_data; | |
292 | char buf[32]; | |
293 | unsigned int len; | |
294 | ||
295 | len = sprintf(buf, "%d\n", sc->spec_config.short_repeat); | |
296 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | |
297 | } | |
298 | ||
299 | static ssize_t write_file_spectral_short_repeat(struct file *file, | |
300 | const char __user *user_buf, | |
301 | size_t count, loff_t *ppos) | |
302 | { | |
303 | struct ath_softc *sc = file->private_data; | |
304 | unsigned long val; | |
305 | char buf[32]; | |
306 | ssize_t len; | |
307 | ||
308 | len = min(count, sizeof(buf) - 1); | |
309 | if (copy_from_user(buf, user_buf, len)) | |
310 | return -EFAULT; | |
311 | ||
312 | buf[len] = '\0'; | |
313 | if (kstrtoul(buf, 0, &val)) | |
314 | return -EINVAL; | |
315 | ||
316 | if (val < 0 || val > 1) | |
317 | return -EINVAL; | |
318 | ||
319 | sc->spec_config.short_repeat = val; | |
320 | return count; | |
321 | } | |
322 | ||
323 | static const struct file_operations fops_spectral_short_repeat = { | |
324 | .read = read_file_spectral_short_repeat, | |
325 | .write = write_file_spectral_short_repeat, | |
326 | .open = simple_open, | |
327 | .owner = THIS_MODULE, | |
328 | .llseek = default_llseek, | |
329 | }; | |
330 | ||
331 | /******************/ | |
332 | /* spectral_count */ | |
333 | /******************/ | |
334 | ||
335 | static ssize_t read_file_spectral_count(struct file *file, | |
336 | char __user *user_buf, | |
337 | size_t count, loff_t *ppos) | |
338 | { | |
339 | struct ath_softc *sc = file->private_data; | |
340 | char buf[32]; | |
341 | unsigned int len; | |
342 | ||
343 | len = sprintf(buf, "%d\n", sc->spec_config.count); | |
344 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | |
345 | } | |
346 | ||
347 | static ssize_t write_file_spectral_count(struct file *file, | |
348 | const char __user *user_buf, | |
349 | size_t count, loff_t *ppos) | |
350 | { | |
351 | struct ath_softc *sc = file->private_data; | |
352 | unsigned long val; | |
353 | char buf[32]; | |
354 | ssize_t len; | |
355 | ||
356 | len = min(count, sizeof(buf) - 1); | |
357 | if (copy_from_user(buf, user_buf, len)) | |
358 | return -EFAULT; | |
359 | ||
360 | buf[len] = '\0'; | |
361 | if (kstrtoul(buf, 0, &val)) | |
362 | return -EINVAL; | |
363 | ||
364 | if (val < 0 || val > 255) | |
365 | return -EINVAL; | |
366 | ||
367 | sc->spec_config.count = val; | |
368 | return count; | |
369 | } | |
370 | ||
371 | static const struct file_operations fops_spectral_count = { | |
372 | .read = read_file_spectral_count, | |
373 | .write = write_file_spectral_count, | |
374 | .open = simple_open, | |
375 | .owner = THIS_MODULE, | |
376 | .llseek = default_llseek, | |
377 | }; | |
378 | ||
379 | /*******************/ | |
380 | /* spectral_period */ | |
381 | /*******************/ | |
382 | ||
383 | static ssize_t read_file_spectral_period(struct file *file, | |
384 | char __user *user_buf, | |
385 | size_t count, loff_t *ppos) | |
386 | { | |
387 | struct ath_softc *sc = file->private_data; | |
388 | char buf[32]; | |
389 | unsigned int len; | |
390 | ||
391 | len = sprintf(buf, "%d\n", sc->spec_config.period); | |
392 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | |
393 | } | |
394 | ||
395 | static ssize_t write_file_spectral_period(struct file *file, | |
396 | const char __user *user_buf, | |
397 | size_t count, loff_t *ppos) | |
398 | { | |
399 | struct ath_softc *sc = file->private_data; | |
400 | unsigned long val; | |
401 | char buf[32]; | |
402 | ssize_t len; | |
403 | ||
404 | len = min(count, sizeof(buf) - 1); | |
405 | if (copy_from_user(buf, user_buf, len)) | |
406 | return -EFAULT; | |
407 | ||
408 | buf[len] = '\0'; | |
409 | if (kstrtoul(buf, 0, &val)) | |
410 | return -EINVAL; | |
411 | ||
412 | if (val < 0 || val > 255) | |
413 | return -EINVAL; | |
414 | ||
415 | sc->spec_config.period = val; | |
416 | return count; | |
417 | } | |
418 | ||
419 | static const struct file_operations fops_spectral_period = { | |
420 | .read = read_file_spectral_period, | |
421 | .write = write_file_spectral_period, | |
422 | .open = simple_open, | |
423 | .owner = THIS_MODULE, | |
424 | .llseek = default_llseek, | |
425 | }; | |
426 | ||
427 | /***********************/ | |
428 | /* spectral_fft_period */ | |
429 | /***********************/ | |
430 | ||
431 | static ssize_t read_file_spectral_fft_period(struct file *file, | |
432 | char __user *user_buf, | |
433 | size_t count, loff_t *ppos) | |
434 | { | |
435 | struct ath_softc *sc = file->private_data; | |
436 | char buf[32]; | |
437 | unsigned int len; | |
438 | ||
439 | len = sprintf(buf, "%d\n", sc->spec_config.fft_period); | |
440 | return simple_read_from_buffer(user_buf, count, ppos, buf, len); | |
441 | } | |
442 | ||
443 | static ssize_t write_file_spectral_fft_period(struct file *file, | |
444 | const char __user *user_buf, | |
445 | size_t count, loff_t *ppos) | |
446 | { | |
447 | struct ath_softc *sc = file->private_data; | |
448 | unsigned long val; | |
449 | char buf[32]; | |
450 | ssize_t len; | |
451 | ||
452 | len = min(count, sizeof(buf) - 1); | |
453 | if (copy_from_user(buf, user_buf, len)) | |
454 | return -EFAULT; | |
455 | ||
456 | buf[len] = '\0'; | |
457 | if (kstrtoul(buf, 0, &val)) | |
458 | return -EINVAL; | |
459 | ||
460 | if (val < 0 || val > 15) | |
461 | return -EINVAL; | |
462 | ||
463 | sc->spec_config.fft_period = val; | |
464 | return count; | |
465 | } | |
466 | ||
467 | static const struct file_operations fops_spectral_fft_period = { | |
468 | .read = read_file_spectral_fft_period, | |
469 | .write = write_file_spectral_fft_period, | |
470 | .open = simple_open, | |
471 | .owner = THIS_MODULE, | |
472 | .llseek = default_llseek, | |
473 | }; | |
474 | ||
475 | /*******************/ | |
476 | /* Relay interface */ | |
477 | /*******************/ | |
478 | ||
479 | static struct dentry *create_buf_file_handler(const char *filename, | |
480 | struct dentry *parent, | |
481 | umode_t mode, | |
482 | struct rchan_buf *buf, | |
483 | int *is_global) | |
484 | { | |
485 | struct dentry *buf_file; | |
486 | ||
487 | buf_file = debugfs_create_file(filename, mode, parent, buf, | |
488 | &relay_file_operations); | |
489 | *is_global = 1; | |
490 | return buf_file; | |
491 | } | |
492 | ||
493 | static int remove_buf_file_handler(struct dentry *dentry) | |
494 | { | |
495 | debugfs_remove(dentry); | |
496 | ||
497 | return 0; | |
498 | } | |
499 | ||
f84d1b49 | 500 | static struct rchan_callbacks rfs_spec_scan_cb = { |
f65c0825 SM |
501 | .create_buf_file = create_buf_file_handler, |
502 | .remove_buf_file = remove_buf_file_handler, | |
503 | }; | |
504 | ||
505 | /*********************/ | |
506 | /* Debug Init/Deinit */ | |
507 | /*********************/ | |
508 | ||
509 | void ath9k_spectral_deinit_debug(struct ath_softc *sc) | |
510 | { | |
511 | if (config_enabled(CONFIG_ATH9K_DEBUGFS) && sc->rfs_chan_spec_scan) { | |
512 | relay_close(sc->rfs_chan_spec_scan); | |
513 | sc->rfs_chan_spec_scan = NULL; | |
514 | } | |
515 | } | |
516 | ||
517 | void ath9k_spectral_init_debug(struct ath_softc *sc) | |
518 | { | |
519 | sc->rfs_chan_spec_scan = relay_open("spectral_scan", | |
520 | sc->debug.debugfs_phy, | |
521 | 1024, 256, &rfs_spec_scan_cb, | |
522 | NULL); | |
523 | debugfs_create_file("spectral_scan_ctl", | |
524 | S_IRUSR | S_IWUSR, | |
525 | sc->debug.debugfs_phy, sc, | |
526 | &fops_spec_scan_ctl); | |
527 | debugfs_create_file("spectral_short_repeat", | |
528 | S_IRUSR | S_IWUSR, | |
529 | sc->debug.debugfs_phy, sc, | |
530 | &fops_spectral_short_repeat); | |
531 | debugfs_create_file("spectral_count", | |
532 | S_IRUSR | S_IWUSR, | |
533 | sc->debug.debugfs_phy, sc, | |
534 | &fops_spectral_count); | |
535 | debugfs_create_file("spectral_period", | |
536 | S_IRUSR | S_IWUSR, | |
537 | sc->debug.debugfs_phy, sc, | |
538 | &fops_spectral_period); | |
539 | debugfs_create_file("spectral_fft_period", | |
540 | S_IRUSR | S_IWUSR, | |
541 | sc->debug.debugfs_phy, sc, | |
542 | &fops_spectral_fft_period); | |
543 | } |