aboutsummaryrefslogtreecommitdiffstats
path: root/package/mac80211/patches/530-ath9k_nf_sanitize.patch
blob: 191daeab20334581ddb5be5e06696dc97c710613 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -1678,6 +1678,15 @@ static void ar5008_hw_ani_cache_ini_regs
 	aniState->cycleCount = 0;
 }
 
+static void ar5008_hw_set_nf_limits(struct ath_hw *ah)
+{
+	ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_5416_2GHZ;
+	ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_5416_2GHZ;
+	ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_5416_2GHZ;
+	ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_5416_5GHZ;
+	ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_5416_5GHZ;
+	ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_5416_5GHZ;
+}
 
 void ar5008_hw_attach_phy_ops(struct ath_hw *ah)
 {
@@ -1715,4 +1724,6 @@ void ar5008_hw_attach_phy_ops(struct ath
 		priv_ops->compute_pll_control = ar9160_hw_compute_pll_control;
 	else
 		priv_ops->compute_pll_control = ar5008_hw_compute_pll_control;
+
+	ar5008_hw_set_nf_limits(ah);
 }
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -481,9 +481,6 @@ static void ar9002_hw_do_getnf(struct at
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ctl] [chain 0] is %d\n", nf);
 
-	if (AR_SREV_9271(ah) && (nf >= -114))
-		nf = -116;
-
 	nfarray[0] = nf;
 
 	if (!AR_SREV_9285(ah) && !AR_SREV_9271(ah)) {
@@ -503,9 +500,6 @@ static void ar9002_hw_do_getnf(struct at
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ext] [chain 0] is %d\n", nf);
 
-	if (AR_SREV_9271(ah) && (nf >= -114))
-		nf = -116;
-
 	nfarray[3] = nf;
 
 	if (!AR_SREV_9285(ah) && !AR_SREV_9271(ah)) {
@@ -520,6 +514,30 @@ static void ar9002_hw_do_getnf(struct at
 	}
 }
 
+static void ar9002_hw_set_nf_limits(struct ath_hw *ah)
+{
+	if (AR_SREV_9285(ah)) {
+		ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9285_2GHZ;
+		ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9285_2GHZ;
+		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9285_2GHZ;
+	} else if (AR_SREV_9287(ah)) {
+		ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9287_2GHZ;
+		ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9287_2GHZ;
+		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9287_2GHZ;
+	} else if (AR_SREV_9271(ah)) {
+		ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9271_2GHZ;
+		ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9271_2GHZ;
+		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9271_2GHZ;
+	} else {
+		ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9280_2GHZ;
+		ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9280_2GHZ;
+		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9280_2GHZ;
+		ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9280_5GHZ;
+		ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9280_5GHZ;
+		ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9280_5GHZ;
+	}
+}
+
 void ar9002_hw_attach_phy_ops(struct ath_hw *ah)
 {
 	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
@@ -532,4 +550,6 @@ void ar9002_hw_attach_phy_ops(struct ath
 	priv_ops->olc_init = ar9002_olc_init;
 	priv_ops->compute_pll_control = ar9002_hw_compute_pll_control;
 	priv_ops->do_getnf = ar9002_hw_do_getnf;
+
+	ar9002_hw_set_nf_limits(ah);
 }
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.h
@@ -576,4 +576,30 @@
 #define AR_PHY_CH2_EXT_MINCCA_PWR   0xFF800000
 #define AR_PHY_CH2_EXT_MINCCA_PWR_S 23
 
+#define AR_PHY_CCA_NOM_VAL_5416_2GHZ            -90
+#define AR_PHY_CCA_NOM_VAL_5416_5GHZ            -100
+#define AR_PHY_CCA_MIN_GOOD_VAL_5416_2GHZ     -100
+#define AR_PHY_CCA_MIN_GOOD_VAL_5416_5GHZ     -110
+#define AR_PHY_CCA_MAX_GOOD_VAL_5416_2GHZ     -80
+#define AR_PHY_CCA_MAX_GOOD_VAL_5416_5GHZ     -90
+
+#define AR_PHY_CCA_NOM_VAL_9280_2GHZ         -112
+#define AR_PHY_CCA_NOM_VAL_9280_5GHZ         -112
+#define AR_PHY_CCA_MIN_GOOD_VAL_9280_2GHZ  -127
+#define AR_PHY_CCA_MIN_GOOD_VAL_9280_5GHZ  -122
+#define AR_PHY_CCA_MAX_GOOD_VAL_9280_2GHZ  -97
+#define AR_PHY_CCA_MAX_GOOD_VAL_9280_5GHZ  -102
+
+#define AR_PHY_CCA_NOM_VAL_9285_2GHZ           -118
+#define AR_PHY_CCA_MIN_GOOD_VAL_9285_2GHZ    -127
+#define AR_PHY_CCA_MAX_GOOD_VAL_9285_2GHZ    -108
+
+#define AR_PHY_CCA_NOM_VAL_9271_2GHZ             -118
+#define AR_PHY_CCA_MIN_GOOD_VAL_9271_2GHZ      -127
+#define AR_PHY_CCA_MAX_GOOD_VAL_9271_2GHZ      -116
+
+#define AR_PHY_CCA_NOM_VAL_9287_2GHZ           -120
+#define AR_PHY_CCA_MIN_GOOD_VAL_9287_2GHZ    -127
+#define AR_PHY_CCA_MAX_GOOD_VAL_9287_2GHZ    -110
+
 #endif
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1015,52 +1015,6 @@ static bool ar9003_hw_ani_control(struct
 	return true;
 }
 
-static void ar9003_hw_nf_sanitize_2g(struct ath_hw *ah, s16 *nf)
-{
-	struct ath_common *common = ath9k_hw_common(ah);
-
-	if (*nf > ah->nf_2g_max) {
-		ath_print(common, ATH_DBG_CALIBRATE,
-			  "2 GHz NF (%d) > MAX (%d), "
-			  "correcting to MAX",
-			  *nf, ah->nf_2g_max);
-		*nf = ah->nf_2g_max;
-	} else if (*nf < ah->nf_2g_min) {
-		ath_print(common, ATH_DBG_CALIBRATE,
-			  "2 GHz NF (%d) < MIN (%d), "
-			  "correcting to MIN",
-			  *nf, ah->nf_2g_min);
-		*nf = ah->nf_2g_min;
-	}
-}
-
-static void ar9003_hw_nf_sanitize_5g(struct ath_hw *ah, s16 *nf)
-{
-	struct ath_common *common = ath9k_hw_common(ah);
-
-	if (*nf > ah->nf_5g_max) {
-		ath_print(common, ATH_DBG_CALIBRATE,
-			  "5 GHz NF (%d) > MAX (%d), "
-			  "correcting to MAX",
-			  *nf, ah->nf_5g_max);
-		*nf = ah->nf_5g_max;
-	} else if (*nf < ah->nf_5g_min) {
-		ath_print(common, ATH_DBG_CALIBRATE,
-			  "5 GHz NF (%d) < MIN (%d), "
-			  "correcting to MIN",
-			  *nf, ah->nf_5g_min);
-		*nf = ah->nf_5g_min;
-	}
-}
-
-static void ar9003_hw_nf_sanitize(struct ath_hw *ah, s16 *nf)
-{
-	if (IS_CHAN_2GHZ(ah->curchan))
-		ar9003_hw_nf_sanitize_2g(ah, nf);
-	else
-		ar9003_hw_nf_sanitize_5g(ah, nf);
-}
-
 static void ar9003_hw_do_getnf(struct ath_hw *ah,
 			      int16_t nfarray[NUM_NF_READINGS])
 {
@@ -1070,7 +1024,6 @@ static void ar9003_hw_do_getnf(struct at
 	nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
 	if (nf & 0x100)
 		nf = 0 - ((nf ^ 0x1ff) + 1);
-	ar9003_hw_nf_sanitize(ah, &nf);
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ctl] [chain 0] is %d\n", nf);
 	nfarray[0] = nf;
@@ -1078,7 +1031,6 @@ static void ar9003_hw_do_getnf(struct at
 	nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
 	if (nf & 0x100)
 		nf = 0 - ((nf ^ 0x1ff) + 1);
-	ar9003_hw_nf_sanitize(ah, &nf);
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ctl] [chain 1] is %d\n", nf);
 	nfarray[1] = nf;
@@ -1086,7 +1038,6 @@ static void ar9003_hw_do_getnf(struct at
 	nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
 	if (nf & 0x100)
 		nf = 0 - ((nf ^ 0x1ff) + 1);
-	ar9003_hw_nf_sanitize(ah, &nf);
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ctl] [chain 2] is %d\n", nf);
 	nfarray[2] = nf;
@@ -1094,7 +1045,6 @@ static void ar9003_hw_do_getnf(struct at
 	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
 	if (nf & 0x100)
 		nf = 0 - ((nf ^ 0x1ff) + 1);
-	ar9003_hw_nf_sanitize(ah, &nf);
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ext] [chain 0] is %d\n", nf);
 	nfarray[3] = nf;
@@ -1102,7 +1052,6 @@ static void ar9003_hw_do_getnf(struct at
 	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
 	if (nf & 0x100)
 		nf = 0 - ((nf ^ 0x1ff) + 1);
-	ar9003_hw_nf_sanitize(ah, &nf);
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ext] [chain 1] is %d\n", nf);
 	nfarray[4] = nf;
@@ -1110,18 +1059,19 @@ static void ar9003_hw_do_getnf(struct at
 	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
 	if (nf & 0x100)
 		nf = 0 - ((nf ^ 0x1ff) + 1);
-	ar9003_hw_nf_sanitize(ah, &nf);
 	ath_print(common, ATH_DBG_CALIBRATE,
 		  "NF calibrated [ext] [chain 2] is %d\n", nf);
 	nfarray[5] = nf;
 }
 
-void ar9003_hw_set_nf_limits(struct ath_hw *ah)
+static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
 {
-	ah->nf_2g_max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
-	ah->nf_2g_min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
-	ah->nf_5g_max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
-	ah->nf_5g_min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
+	ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
+	ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
+	ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
+	ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
+	ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
+	ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
 }
 
 /*
@@ -1309,6 +1259,8 @@ void ar9003_hw_attach_phy_ops(struct ath
 	priv_ops->do_getnf = ar9003_hw_do_getnf;
 	priv_ops->loadnf = ar9003_hw_loadnf;
 	priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
+
+	ar9003_hw_set_nf_limits(ah);
 }
 
 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -74,13 +74,8 @@ static void ath9k_hw_update_nfcal_hist_b
 			h[i].currIndex = 0;
 
 		if (h[i].invalidNFcount > 0) {
-			if (nfarray[i] < AR_PHY_CCA_MIN_BAD_VALUE ||
-			    nfarray[i] > AR_PHY_CCA_MAX_HIGH_VALUE) {
-				h[i].invalidNFcount = ATH9K_NF_CAL_HIST_MAX;
-			} else {
-				h[i].invalidNFcount--;
-				h[i].privNF = nfarray[i];
-			}
+			h[i].invalidNFcount--;
+			h[i].privNF = nfarray[i];
 		} else {
 			h[i].privNF =
 				ath9k_hw_get_nf_hist_mid(h[i].nfCalBuffer);
@@ -172,6 +167,35 @@ void ath9k_hw_start_nfcal(struct ath_hw 
 	REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
 }
 
+static void ath9k_hw_nf_sanitize(struct ath_hw *ah, s16 *nf)
+{
+	struct ath_common *common = ath9k_hw_common(ah);
+	struct ath_nf_limits *limit;
+	int i;
+
+	if (IS_CHAN_2GHZ(ah->curchan))
+		limit = &ah->nf_2g;
+	else
+		limit = &ah->nf_5g;
+
+	for (i = 0; i < NUM_NF_READINGS; i++) {
+		if (!nf[i])
+			continue;
+
+		if (nf[i] > limit->max) {
+			ath_print(common, ATH_DBG_CALIBRATE,
+				  "NF[%d] (%d) > MAX (%d), correcting to MAX",
+				  i, nf[i], limit->max);
+			nf[i] = limit->max;
+		} else if (nf[i] < limit->min) {
+			ath_print(common, ATH_DBG_CALIBRATE,
+				  "NF[%d] (%d) < MIN (%d), correcting to NOM",
+				  i, nf[i], limit->min);
+			nf[i] = limit->nominal;
+		}
+	}
+}
+
 int16_t ath9k_hw_getnf(struct ath_hw *ah,
 		       struct ath9k_channel *chan)
 {
@@ -190,6 +214,7 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah
 		return chan->rawNoiseFloor;
 	} else {
 		ath9k_hw_do_getnf(ah, nfarray);
+		ath9k_hw_nf_sanitize(ah, nfarray);
 		nf = nfarray[0];
 		if (ath9k_hw_get_nf_thresh(ah, c->band, &nfThresh)
 		    && nf > nfThresh) {
@@ -211,25 +236,21 @@ int16_t ath9k_hw_getnf(struct ath_hw *ah
 
 void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah)
 {
+	struct ath_nf_limits *limit;
 	int i, j;
-	s16 noise_floor;
 
-	if (AR_SREV_9280(ah))
-		noise_floor = AR_PHY_CCA_MAX_AR9280_GOOD_VALUE;
-	else if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
-		noise_floor = AR_PHY_CCA_MAX_AR9285_GOOD_VALUE;
-	else if (AR_SREV_9287(ah))
-		noise_floor = AR_PHY_CCA_MAX_AR9287_GOOD_VALUE;
+	if (!ah->curchan || IS_CHAN_2GHZ(ah->curchan))
+		limit = &ah->nf_2g;
 	else
-		noise_floor = AR_PHY_CCA_MAX_AR5416_GOOD_VALUE;
+		limit = &ah->nf_5g;
 
 	for (i = 0; i < NUM_NF_READINGS; i++) {
 		ah->nfCalHist[i].currIndex = 0;
-		ah->nfCalHist[i].privNF = noise_floor;
+		ah->nfCalHist[i].privNF = limit->nominal;
 		ah->nfCalHist[i].invalidNFcount =
 			AR_PHY_CCA_FILTERWINDOW_LENGTH;
 		for (j = 0; j < ATH9K_NF_CAL_HIST_MAX; j++) {
-			ah->nfCalHist[i].nfCalBuffer[j] = noise_floor;
+			ah->nfCalHist[i].nfCalBuffer[j] = limit->nominal;
 		}
 	}
 }
--- a/drivers/net/wireless/ath/ath9k/calib.h
+++ b/drivers/net/wireless/ath/ath9k/calib.h
@@ -19,12 +19,6 @@
 
 #include "hw.h"
 
-#define AR_PHY_CCA_MAX_AR5416_GOOD_VALUE	-85
-#define AR_PHY_CCA_MAX_AR9280_GOOD_VALUE	-112
-#define AR_PHY_CCA_MAX_AR9285_GOOD_VALUE	-118
-#define AR_PHY_CCA_MAX_AR9287_GOOD_VALUE	-118
-#define AR_PHY_CCA_MAX_HIGH_VALUE      		-62
-#define AR_PHY_CCA_MIN_BAD_VALUE       		-140
 #define AR_PHY_CCA_FILTERWINDOW_LENGTH_INIT     3
 #define AR_PHY_CCA_FILTERWINDOW_LENGTH          5
 
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -621,9 +621,6 @@ static int __ath9k_hw_init(struct ath_hw
 	else
 		ah->tx_trig_level = (AR_FTRIG_512B >> AR_FTRIG_S);
 
-	if (AR_SREV_9300_20_OR_LATER(ah))
-		ar9003_hw_set_nf_limits(ah);
-
 	ath9k_init_nfcal_hist_buffer(ah);
 	ah->bb_watchdog_timeout_ms = 25;
 
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -630,6 +630,12 @@ struct ath_hw_ops {
 	void (*ani_monitor)(struct ath_hw *ah, struct ath9k_channel *chan);
 };
 
+struct ath_nf_limits {
+	s16 max;
+	s16 min;
+	s16 nominal;
+};
+
 struct ath_hw {
 	struct ieee80211_hw *hw;
 	struct ath_common common;
@@ -651,10 +657,9 @@ struct ath_hw {
 	bool is_pciexpress;
 	bool need_an_top2_fixup;
 	u16 tx_trig_level;
-	s16 nf_2g_max;
-	s16 nf_2g_min;
-	s16 nf_5g_max;
-	s16 nf_5g_min;
+
+	struct ath_nf_limits nf_2g;
+	struct ath_nf_limits nf_5g;
 	u16 rfsilent;
 	u32 rfkill_gpio;
 	u32 rfkill_polarity;
@@ -945,7 +950,6 @@ void ar9002_hw_enable_wep_aggregation(st
  * Code specific to AR9003, we stuff these here to avoid callbacks
  * for older families
  */
-void ar9003_hw_set_nf_limits(struct ath_hw *ah);
 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah);
 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah);
 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah);