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
|
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2016 Realtek Corporation.
*
* Contact Information:
* wlanfae <wlanfae@realtek.com>
* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
* Hsinchu 300, Taiwan.
*
* Larry Finger <Larry.Finger@lwfinger.net>
*
*****************************************************************************/
#include "mp_precomp.h"
#include "phydm_precomp.h"
static void odm_set_crystal_cap(void *dm_void, u8 crystal_cap)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
struct cfo_tracking *cfo_track =
(struct cfo_tracking *)phydm_get_structure(dm, PHYDM_CFOTRACK);
if (cfo_track->crystal_cap == crystal_cap)
return;
cfo_track->crystal_cap = crystal_cap;
if (dm->support_ic_type & (ODM_RTL8188E | ODM_RTL8188F)) {
/* write 0x24[22:17] = 0x24[16:11] = crystal_cap */
crystal_cap = crystal_cap & 0x3F;
odm_set_bb_reg(dm, REG_AFE_XTAL_CTRL, 0x007ff800,
(crystal_cap | (crystal_cap << 6)));
} else if (dm->support_ic_type & ODM_RTL8812) {
/* write 0x2C[30:25] = 0x2C[24:19] = crystal_cap */
crystal_cap = crystal_cap & 0x3F;
odm_set_bb_reg(dm, REG_MAC_PHY_CTRL, 0x7FF80000,
(crystal_cap | (crystal_cap << 6)));
} else if ((dm->support_ic_type & (ODM_RTL8703B | ODM_RTL8723B |
ODM_RTL8192E | ODM_RTL8821))) {
/* 0x2C[23:18] = 0x2C[17:12] = crystal_cap */
crystal_cap = crystal_cap & 0x3F;
odm_set_bb_reg(dm, REG_MAC_PHY_CTRL, 0x00FFF000,
(crystal_cap | (crystal_cap << 6)));
} else if (dm->support_ic_type & ODM_RTL8814A) {
/* write 0x2C[26:21] = 0x2C[20:15] = crystal_cap */
crystal_cap = crystal_cap & 0x3F;
odm_set_bb_reg(dm, REG_MAC_PHY_CTRL, 0x07FF8000,
(crystal_cap | (crystal_cap << 6)));
} else if (dm->support_ic_type & (ODM_RTL8822B | ODM_RTL8821C)) {
/* write 0x24[30:25] = 0x28[6:1] = crystal_cap */
crystal_cap = crystal_cap & 0x3F;
odm_set_bb_reg(dm, REG_AFE_XTAL_CTRL, 0x7e000000, crystal_cap);
odm_set_bb_reg(dm, REG_AFE_PLL_CTRL, 0x7e, crystal_cap);
} else {
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): Use default setting.\n", __func__);
odm_set_bb_reg(dm, REG_MAC_PHY_CTRL, 0xFFF000,
(crystal_cap | (crystal_cap << 6)));
}
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING, "%s(): crystal_cap = 0x%x\n",
__func__, crystal_cap);
/* JJ modified 20161115 */
}
static u8 odm_get_default_crytaltal_cap(void *dm_void)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
u8 crystal_cap = 0x20;
struct rtl_priv *rtlpriv = (struct rtl_priv *)dm->adapter;
struct rtl_efuse *rtlefuse = rtl_efuse(rtlpriv);
crystal_cap = rtlefuse->crystalcap;
crystal_cap = crystal_cap & 0x3f;
return crystal_cap;
}
static void odm_set_atc_status(void *dm_void, bool atc_status)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
struct cfo_tracking *cfo_track =
(struct cfo_tracking *)phydm_get_structure(dm, PHYDM_CFOTRACK);
if (cfo_track->is_atc_status == atc_status)
return;
odm_set_bb_reg(dm, ODM_REG(BB_ATC, dm), ODM_BIT(BB_ATC, dm),
atc_status);
cfo_track->is_atc_status = atc_status;
}
static bool odm_get_atc_status(void *dm_void)
{
bool atc_status;
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
atc_status = (bool)odm_get_bb_reg(dm, ODM_REG(BB_ATC, dm),
ODM_BIT(BB_ATC, dm));
return atc_status;
}
void odm_cfo_tracking_reset(void *dm_void)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
struct cfo_tracking *cfo_track =
(struct cfo_tracking *)phydm_get_structure(dm, PHYDM_CFOTRACK);
cfo_track->def_x_cap = odm_get_default_crytaltal_cap(dm);
cfo_track->is_adjust = true;
if (cfo_track->crystal_cap > cfo_track->def_x_cap) {
odm_set_crystal_cap(dm, cfo_track->crystal_cap - 1);
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): approch default value (0x%x)\n", __func__,
cfo_track->crystal_cap);
} else if (cfo_track->crystal_cap < cfo_track->def_x_cap) {
odm_set_crystal_cap(dm, cfo_track->crystal_cap + 1);
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): approch default value (0x%x)\n", __func__,
cfo_track->crystal_cap);
}
odm_set_atc_status(dm, true);
}
void odm_cfo_tracking_init(void *dm_void)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
struct cfo_tracking *cfo_track =
(struct cfo_tracking *)phydm_get_structure(dm, PHYDM_CFOTRACK);
cfo_track->crystal_cap = odm_get_default_crytaltal_cap(dm);
cfo_track->def_x_cap = cfo_track->crystal_cap;
cfo_track->is_atc_status = odm_get_atc_status(dm);
cfo_track->is_adjust = true;
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING, "%s()=========>\n", __func__);
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): is_atc_status = %d, crystal_cap = 0x%x\n", __func__,
cfo_track->is_atc_status, cfo_track->def_x_cap);
/* Crystal cap. control by WiFi */
if (dm->support_ic_type & ODM_RTL8822B)
odm_set_bb_reg(dm, 0x10, 0x40, 0x1);
}
void odm_cfo_tracking(void *dm_void)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
struct cfo_tracking *cfo_track =
(struct cfo_tracking *)phydm_get_structure(dm, PHYDM_CFOTRACK);
s32 cfo_ave = 0;
u32 cfo_rpt_sum, cfo_khz_avg[4] = {0};
s32 cfo_ave_diff;
s8 crystal_cap = cfo_track->crystal_cap;
u8 adjust_xtal = 1, i, valid_path_cnt = 0;
/* 4 Support ability */
if (!(dm->support_ability & ODM_BB_CFO_TRACKING)) {
ODM_RT_TRACE(
dm, ODM_COMP_CFO_TRACKING,
"%s(): Return: support_ability ODM_BB_CFO_TRACKING is disabled\n",
__func__);
return;
}
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING, "%s()=========>\n", __func__);
if (!dm->is_linked || !dm->is_one_entry_only) {
/* 4 No link or more than one entry */
odm_cfo_tracking_reset(dm);
ODM_RT_TRACE(
dm, ODM_COMP_CFO_TRACKING,
"%s(): Reset: is_linked = %d, is_one_entry_only = %d\n",
__func__, dm->is_linked, dm->is_one_entry_only);
} else {
/* 3 1. CFO Tracking */
/* 4 1.1 No new packet */
if (cfo_track->packet_count == cfo_track->packet_count_pre) {
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): packet counter doesn't change\n",
__func__);
return;
}
cfo_track->packet_count_pre = cfo_track->packet_count;
/* 4 1.2 Calculate CFO */
for (i = 0; i < dm->num_rf_path; i++) {
if (cfo_track->CFO_cnt[i] == 0)
continue;
valid_path_cnt++;
cfo_rpt_sum =
(u32)((cfo_track->CFO_tail[i] < 0) ?
(0 - cfo_track->CFO_tail[i]) :
cfo_track->CFO_tail[i]);
cfo_khz_avg[i] = CFO_HW_RPT_2_MHZ(cfo_rpt_sum) /
cfo_track->CFO_cnt[i];
ODM_RT_TRACE(
dm, ODM_COMP_CFO_TRACKING,
"[path %d] cfo_rpt_sum = (( %d )), CFO_cnt = (( %d )) , CFO_avg= (( %s%d )) kHz\n",
i, cfo_rpt_sum, cfo_track->CFO_cnt[i],
((cfo_track->CFO_tail[i] < 0) ? "-" : " "),
cfo_khz_avg[i]);
}
for (i = 0; i < valid_path_cnt; i++) {
if (cfo_track->CFO_tail[i] < 0) {
/* */
cfo_ave += (0 - (s32)cfo_khz_avg[i]);
} else {
cfo_ave += (s32)cfo_khz_avg[i];
}
}
if (valid_path_cnt >= 2)
cfo_ave = cfo_ave / valid_path_cnt;
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"valid_path_cnt = ((%d)), cfo_ave = ((%d kHz))\n",
valid_path_cnt, cfo_ave);
/*reset counter*/
for (i = 0; i < dm->num_rf_path; i++) {
cfo_track->CFO_tail[i] = 0;
cfo_track->CFO_cnt[i] = 0;
}
/* 4 1.3 Avoid abnormal large CFO */
cfo_ave_diff = (cfo_track->CFO_ave_pre >= cfo_ave) ?
(cfo_track->CFO_ave_pre - cfo_ave) :
(cfo_ave - cfo_track->CFO_ave_pre);
if (cfo_ave_diff > 20 && cfo_track->large_cfo_hit == 0 &&
!cfo_track->is_adjust) {
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): first large CFO hit\n", __func__);
cfo_track->large_cfo_hit = 1;
return;
}
cfo_track->large_cfo_hit = 0;
cfo_track->CFO_ave_pre = cfo_ave;
/* 4 1.4 Dynamic Xtal threshold */
if (!cfo_track->is_adjust) {
if (cfo_ave > CFO_TH_XTAL_HIGH ||
cfo_ave < (-CFO_TH_XTAL_HIGH))
cfo_track->is_adjust = true;
} else {
if (cfo_ave < CFO_TH_XTAL_LOW &&
cfo_ave > (-CFO_TH_XTAL_LOW))
cfo_track->is_adjust = false;
}
/* 4 1.5 BT case: Disable CFO tracking */
if (dm->is_bt_enabled) {
cfo_track->is_adjust = false;
odm_set_crystal_cap(dm, cfo_track->def_x_cap);
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): Disable CFO tracking for BT!!\n",
__func__);
}
/* 4 1.7 Adjust Crystal Cap. */
if (cfo_track->is_adjust) {
if (cfo_ave > CFO_TH_XTAL_LOW)
crystal_cap = crystal_cap + adjust_xtal;
else if (cfo_ave < (-CFO_TH_XTAL_LOW))
crystal_cap = crystal_cap - adjust_xtal;
if (crystal_cap > 0x3f)
crystal_cap = 0x3f;
else if (crystal_cap < 0)
crystal_cap = 0;
odm_set_crystal_cap(dm, (u8)crystal_cap);
}
ODM_RT_TRACE(
dm, ODM_COMP_CFO_TRACKING,
"%s(): Crystal cap = 0x%x, Default Crystal cap = 0x%x\n",
__func__, cfo_track->crystal_cap, cfo_track->def_x_cap);
if (dm->support_ic_type & ODM_IC_11AC_SERIES)
return;
/* 3 2. Dynamic ATC switch */
if (cfo_ave < CFO_TH_ATC && cfo_ave > -CFO_TH_ATC) {
odm_set_atc_status(dm, false);
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): Disable ATC!!\n", __func__);
} else {
odm_set_atc_status(dm, true);
ODM_RT_TRACE(dm, ODM_COMP_CFO_TRACKING,
"%s(): Enable ATC!!\n", __func__);
}
}
}
void odm_parsing_cfo(void *dm_void, void *pktinfo_void, s8 *pcfotail, u8 num_ss)
{
struct phy_dm_struct *dm = (struct phy_dm_struct *)dm_void;
struct dm_per_pkt_info *pktinfo =
(struct dm_per_pkt_info *)pktinfo_void;
struct cfo_tracking *cfo_track =
(struct cfo_tracking *)phydm_get_structure(dm, PHYDM_CFOTRACK);
u8 i;
if (!(dm->support_ability & ODM_BB_CFO_TRACKING))
return;
if (pktinfo->is_packet_match_bssid) {
if (num_ss > dm->num_rf_path) /*For fool proof*/
num_ss = dm->num_rf_path;
/* 3 Update CFO report for path-A & path-B */
/* Only paht-A and path-B have CFO tail and short CFO */
for (i = 0; i < num_ss; i++) {
cfo_track->CFO_tail[i] += pcfotail[i];
cfo_track->CFO_cnt[i]++;
}
/* 3 Update packet counter */
if (cfo_track->packet_count == 0xffffffff)
cfo_track->packet_count = 0;
else
cfo_track->packet_count++;
}
}
|
