1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 ******************************************************************************/
20 #include "odm_precomp.h"
22 static u8 odm_QueryRxPwrPercentage(s8 AntPower)
24 if ((AntPower <= -100) || (AntPower >= 20))
26 else if (AntPower >= 0)
29 return 100 + AntPower;
32 static s32 odm_SignalScaleMapping_92CSeries(struct dm_odm_t *pDM_Odm, s32 CurrSig)
36 if (CurrSig >= 51 && CurrSig <= 100)
38 else if (CurrSig >= 41 && CurrSig <= 50)
39 RetSig = 80 + ((CurrSig - 40)*2);
40 else if (CurrSig >= 31 && CurrSig <= 40)
41 RetSig = 66 + (CurrSig - 30);
42 else if (CurrSig >= 21 && CurrSig <= 30)
43 RetSig = 54 + (CurrSig - 20);
44 else if (CurrSig >= 10 && CurrSig <= 20)
45 RetSig = 42 + (((CurrSig - 10) * 2) / 3);
46 else if (CurrSig >= 5 && CurrSig <= 9)
47 RetSig = 22 + (((CurrSig - 5) * 3) / 2);
48 else if (CurrSig >= 1 && CurrSig <= 4)
49 RetSig = 6 + (((CurrSig - 1) * 3) / 2);
56 static s32 odm_SignalScaleMapping(struct dm_odm_t *pDM_Odm, s32 CurrSig)
58 return odm_SignalScaleMapping_92CSeries(pDM_Odm, CurrSig);
62 odm_EVMdbToPercentage(
67 /* -33dB~0dB to 0%~99% */
78 ret_val = 0 - ret_val;
87 static void odm_RxPhyStatus92CSeries_Parsing(struct dm_odm_t *pDM_Odm,
88 struct phy_info *pPhyInfo,
90 struct odm_packet_info *pPktinfo)
92 struct phy_status_rpt *pPhyStaRpt = (struct phy_status_rpt *)pPhyStatus;
93 u8 i, Max_spatial_stream;
94 s8 rx_pwr[4], rx_pwr_all = 0;
95 u8 EVM, PWDB_ALL = 0, PWDB_ALL_BT;
96 u8 RSSI, total_rssi = 0;
101 isCCKrate = (pPktinfo->Rate <= DESC92C_RATE11M) ? true : false;
102 pPhyInfo->RxMIMOSignalQuality[RF_PATH_A] = -1;
103 pPhyInfo->RxMIMOSignalQuality[RF_PATH_B] = -1;
109 pDM_Odm->PhyDbgInfo.NumQryPhyStatusCCK++;
110 /* (1)Hardware does not provide RSSI for CCK */
111 /* (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive) */
113 cck_highpwr = pDM_Odm->bCckHighPower;
115 cck_agc_rpt = pPhyStaRpt->cck_agc_rpt_ofdm_cfosho_a;
117 /* The RSSI formula should be modified according to the gain table */
119 report = (cck_agc_rpt & 0xc0)>>6;
121 /* Modify the RF RNA gain value to -40, -20, -2, 14 by Jenyu's suggestion */
122 /* Note: different RF with the different RNA gain. */
124 rx_pwr_all = -46 - (cck_agc_rpt & 0x3e);
127 rx_pwr_all = -26 - (cck_agc_rpt & 0x3e);
130 rx_pwr_all = -12 - (cck_agc_rpt & 0x3e);
133 rx_pwr_all = 16 - (cck_agc_rpt & 0x3e);
137 report = (cck_agc_rpt & 0x60)>>5;
140 rx_pwr_all = -46 - ((cck_agc_rpt & 0x1f)<<1);
143 rx_pwr_all = -26 - ((cck_agc_rpt & 0x1f)<<1);
146 rx_pwr_all = -12 - ((cck_agc_rpt & 0x1f)<<1);
149 rx_pwr_all = 16 - ((cck_agc_rpt & 0x1f)<<1);
154 PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all);
156 /* Modification for ext-LNA board */
157 if (pDM_Odm->BoardType == ODM_BOARD_HIGHPWR) {
158 if ((cck_agc_rpt>>7) == 0) {
159 PWDB_ALL = (PWDB_ALL > 94) ? 100 : (PWDB_ALL+6);
164 PWDB_ALL = (PWDB_ALL <= 16) ? (PWDB_ALL>>2) : (PWDB_ALL-12);
167 /* CCK modification */
168 if (PWDB_ALL > 25 && PWDB_ALL <= 60)
170 } else { /* Modification for int-LNA board */
173 else if (PWDB_ALL > 50 && PWDB_ALL <= 68)
176 pPhyInfo->RxPWDBAll = PWDB_ALL;
177 pPhyInfo->BTRxRSSIPercentage = PWDB_ALL;
178 pPhyInfo->RecvSignalPower = rx_pwr_all;
179 /* (3) Get Signal Quality (EVM) */
180 if (pPktinfo->bPacketMatchBSSID) {
183 SQ_rpt = pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all;
187 else if (SQ_rpt < 20)
190 SQ = ((64-SQ_rpt) * 100) / 44;
192 pPhyInfo->SignalQuality = SQ;
193 pPhyInfo->RxMIMOSignalQuality[RF_PATH_A] = SQ;
194 pPhyInfo->RxMIMOSignalQuality[RF_PATH_B] = -1;
196 } else { /* is OFDM rate */
197 pDM_Odm->PhyDbgInfo.NumQryPhyStatusOFDM++;
199 /* (1)Get RSSI for HT rate */
201 for (i = RF_PATH_A; i < RF_PATH_MAX; i++) {
202 /* 2008/01/30 MH we will judge RF RX path now. */
203 if (pDM_Odm->RFPathRxEnable & BIT(i))
206 rx_pwr[i] = ((pPhyStaRpt->path_agc[i].gain & 0x3F)*2) - 110;
208 pPhyInfo->RxPwr[i] = rx_pwr[i];
210 /* Translate DBM to percentage. */
211 RSSI = odm_QueryRxPwrPercentage(rx_pwr[i]);
214 /* Modification for ext-LNA board */
215 if (pDM_Odm->BoardType == ODM_BOARD_HIGHPWR) {
216 if ((pPhyStaRpt->path_agc[i].trsw) == 1)
217 RSSI = (RSSI > 94) ? 100 : (RSSI+6);
219 RSSI = (RSSI <= 16) ? (RSSI>>3) : (RSSI-16);
221 if ((RSSI <= 34) && (RSSI >= 4))
225 pPhyInfo->RxMIMOSignalStrength[i] = (u8) RSSI;
227 /* Get Rx snr value in DB */
228 pPhyInfo->RxSNR[i] = pDM_Odm->PhyDbgInfo.RxSNRdB[i] = (s32)(pPhyStaRpt->path_rxsnr[i]/2);
231 /* (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive) */
232 rx_pwr_all = (((pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all) >> 1) & 0x7f)-110;
234 PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all);
235 PWDB_ALL_BT = PWDB_ALL;
237 pPhyInfo->RxPWDBAll = PWDB_ALL;
238 pPhyInfo->BTRxRSSIPercentage = PWDB_ALL_BT;
239 pPhyInfo->RxPower = rx_pwr_all;
240 pPhyInfo->RecvSignalPower = rx_pwr_all;
242 /* (3)EVM of HT rate */
243 if (pPktinfo->Rate >= DESC92C_RATEMCS8 && pPktinfo->Rate <= DESC92C_RATEMCS15)
244 Max_spatial_stream = 2; /* both spatial stream make sense */
246 Max_spatial_stream = 1; /* only spatial stream 1 makes sense */
248 for (i = 0; i < Max_spatial_stream; i++) {
249 /* Do not use shift operation like "rx_evmX >>= 1" because the compilor of free build environment */
250 /* fill most significant bit to "zero" when doing shifting operation which may change a negative */
251 /* value to positive one, then the dbm value (which is supposed to be negative) is not correct anymore. */
252 EVM = odm_EVMdbToPercentage((pPhyStaRpt->stream_rxevm[i])); /* dbm */
254 if (pPktinfo->bPacketMatchBSSID) {
255 if (i == RF_PATH_A) {
256 /* Fill value in RFD, Get the first spatial stream only */
257 pPhyInfo->SignalQuality = (u8)(EVM & 0xff);
259 pPhyInfo->RxMIMOSignalQuality[i] = (u8)(EVM & 0xff);
263 /* UI BSS List signal strength(in percentage), make it good looking, from 0~100. */
264 /* It is assigned to the BSS List in GetValueFromBeaconOrProbeRsp(). */
266 pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(pDM_Odm, PWDB_ALL));/* PWDB_ALL; */
269 pPhyInfo->SignalStrength = (u8)(odm_SignalScaleMapping(pDM_Odm, total_rssi /= rf_rx_num));
273 void odm_Init_RSSIForDM23a(struct dm_odm_t *pDM_Odm)
277 static void odm_Process_RSSIForDM(struct dm_odm_t *pDM_Odm,
278 struct phy_info *pPhyInfo,
279 struct odm_packet_info *pPktinfo)
281 s32 UndecoratedSmoothedPWDB, UndecoratedSmoothedCCK;
282 s32 UndecoratedSmoothedOFDM, RSSI_Ave;
284 u8 RSSI_max, RSSI_min, i;
287 struct sta_info *pEntry;
289 if (pPktinfo->StationID == 0xFF)
292 pEntry = pDM_Odm->pODM_StaInfo[pPktinfo->StationID];
295 if ((!pPktinfo->bPacketMatchBSSID))
298 isCCKrate = (pPktinfo->Rate <= DESC92C_RATE11M) ? true : false;
300 /* Smart Antenna Debug Message------------------*/
302 UndecoratedSmoothedCCK = pEntry->rssi_stat.UndecoratedSmoothedCCK;
303 UndecoratedSmoothedOFDM = pEntry->rssi_stat.UndecoratedSmoothedOFDM;
304 UndecoratedSmoothedPWDB = pEntry->rssi_stat.UndecoratedSmoothedPWDB;
306 if (pPktinfo->bPacketToSelf || pPktinfo->bPacketBeacon) {
307 if (!isCCKrate) { /* ofdm rate */
308 if (pPhyInfo->RxMIMOSignalStrength[RF_PATH_B] == 0) {
309 RSSI_Ave = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A];
311 if (pPhyInfo->RxMIMOSignalStrength[RF_PATH_A] > pPhyInfo->RxMIMOSignalStrength[RF_PATH_B]) {
312 RSSI_max = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A];
313 RSSI_min = pPhyInfo->RxMIMOSignalStrength[RF_PATH_B];
315 RSSI_max = pPhyInfo->RxMIMOSignalStrength[RF_PATH_B];
316 RSSI_min = pPhyInfo->RxMIMOSignalStrength[RF_PATH_A];
318 if ((RSSI_max - RSSI_min) < 3)
320 else if ((RSSI_max - RSSI_min) < 6)
321 RSSI_Ave = RSSI_max - 1;
322 else if ((RSSI_max - RSSI_min) < 10)
323 RSSI_Ave = RSSI_max - 2;
325 RSSI_Ave = RSSI_max - 3;
328 /* 1 Process OFDM RSSI */
329 if (UndecoratedSmoothedOFDM <= 0) {
331 UndecoratedSmoothedOFDM = pPhyInfo->RxPWDBAll;
333 if (pPhyInfo->RxPWDBAll > (u32)UndecoratedSmoothedOFDM) {
334 UndecoratedSmoothedOFDM =
335 (((UndecoratedSmoothedOFDM)*(Rx_Smooth_Factor-1)) +
336 (RSSI_Ave)) / (Rx_Smooth_Factor);
337 UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM + 1;
339 UndecoratedSmoothedOFDM =
340 (((UndecoratedSmoothedOFDM)*(Rx_Smooth_Factor-1)) +
341 (RSSI_Ave)) / (Rx_Smooth_Factor);
344 pEntry->rssi_stat.PacketMap =
345 (pEntry->rssi_stat.PacketMap<<1) | BIT(0);
347 RSSI_Ave = pPhyInfo->RxPWDBAll;
349 /* 1 Process CCK RSSI */
350 if (UndecoratedSmoothedCCK <= 0) {
352 UndecoratedSmoothedCCK = pPhyInfo->RxPWDBAll;
354 if (pPhyInfo->RxPWDBAll > (u32)UndecoratedSmoothedCCK) {
355 UndecoratedSmoothedCCK =
356 (((UndecoratedSmoothedCCK)*(Rx_Smooth_Factor-1)) +
357 (pPhyInfo->RxPWDBAll)) / (Rx_Smooth_Factor);
358 UndecoratedSmoothedCCK = UndecoratedSmoothedCCK + 1;
360 UndecoratedSmoothedCCK =
361 (((UndecoratedSmoothedCCK)*(Rx_Smooth_Factor-1)) +
362 (pPhyInfo->RxPWDBAll)) / (Rx_Smooth_Factor);
365 pEntry->rssi_stat.PacketMap = pEntry->rssi_stat.PacketMap<<1;
368 /* 2011.07.28 LukeLee: modified to prevent unstable CCK RSSI */
369 if (pEntry->rssi_stat.ValidBit >= 64)
370 pEntry->rssi_stat.ValidBit = 64;
372 pEntry->rssi_stat.ValidBit++;
374 for (i = 0; i < pEntry->rssi_stat.ValidBit; i++)
376 (u8)(pEntry->rssi_stat.PacketMap>>i) & BIT(0);
378 if (pEntry->rssi_stat.ValidBit == 64) {
379 Weighting = ((OFDM_pkt<<4) > 64)?64:(OFDM_pkt<<4);
380 UndecoratedSmoothedPWDB = (Weighting*UndecoratedSmoothedOFDM+(64-Weighting)*UndecoratedSmoothedCCK)>>6;
382 if (pEntry->rssi_stat.ValidBit != 0)
383 UndecoratedSmoothedPWDB = (OFDM_pkt*UndecoratedSmoothedOFDM+(pEntry->rssi_stat.ValidBit-OFDM_pkt)*UndecoratedSmoothedCCK)/pEntry->rssi_stat.ValidBit;
385 UndecoratedSmoothedPWDB = 0;
387 pEntry->rssi_stat.UndecoratedSmoothedCCK = UndecoratedSmoothedCCK;
388 pEntry->rssi_stat.UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM;
389 pEntry->rssi_stat.UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
393 void ODM_PhyStatusQuery23a(struct dm_odm_t *pDM_Odm, struct phy_info *pPhyInfo,
394 u8 *pPhyStatus, struct odm_packet_info *pPktinfo)
396 odm_RxPhyStatus92CSeries_Parsing(pDM_Odm, pPhyInfo,
397 pPhyStatus, pPktinfo);
399 odm_Process_RSSIForDM(pDM_Odm, pPhyInfo, pPktinfo);