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android-kvm / linux / 360da90029196c9449bc61e5a07ce8404e4cba57 / . / drivers / staging / winbond / mto.c
blob: 2ef60e5120cc224b9b81adcc48b204effa2c4955 [file] [log] [blame]
//============================================================================
// MTO.C -
//
// Description:
// MAC Throughput Optimization for W89C33 802.11g WLAN STA.
//
// The following MIB attributes or internal variables will be affected
// while the MTO is being executed:
// dot11FragmentationThreshold,
// dot11RTSThreshold,
// transmission rate and PLCP preamble type,
// CCA mode,
// antenna diversity.
//
// Revision history:
// --------------------------------------------------------------------------
// 20031227 UN20 Pete Chao
// First draft
// 20031229 Turbo copy from PD43
// 20040210 Kevin revised
// Copyright (c) 2003 Winbond Electronics Corp. All rights reserved.
//============================================================================
// LA20040210_DTO kevin
#include "os_common.h"
// Declare SQ3 to rate and fragmentation threshold table
// Declare fragmentation thresholds table
#define MTO_MAX_SQ3_LEVELS 14
#define MTO_MAX_FRAG_TH_LEVELS 5
#define MTO_MAX_DATA_RATE_LEVELS 12
u16 MTO_Frag_Th_Tbl[MTO_MAX_FRAG_TH_LEVELS] =
{
256, 384, 512, 768, 1536
};
u8 MTO_SQ3_Level[MTO_MAX_SQ3_LEVELS] =
{
0, 26, 30, 32, 34, 35, 37, 42, 44, 46, 54, 62, 78, 81
};
u8 MTO_SQ3toRate[MTO_MAX_SQ3_LEVELS] =
{
0, 1, 1, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};
u8 MTO_SQ3toFrag[MTO_MAX_SQ3_LEVELS] =
{
0, 2, 2, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4
};
// One Exchange Time table
//
u16 MTO_One_Exchange_Time_Tbl_l[MTO_MAX_FRAG_TH_LEVELS][MTO_MAX_DATA_RATE_LEVELS] =
{
{ 2554, 1474, 822, 0, 0, 636, 0, 0, 0, 0, 0, 0},
{ 3578, 1986, 1009, 0, 0, 729, 0, 0, 0, 0, 0, 0},
{ 4602, 2498, 1195, 0, 0, 822, 0, 0, 0, 0, 0, 0},
{ 6650, 3522, 1567, 0, 0, 1009, 0, 0, 0, 0, 0, 0},
{12794, 6594, 2684, 0, 0, 1567, 0, 0, 0, 0, 0, 0}
};
u16 MTO_One_Exchange_Time_Tbl_s[MTO_MAX_FRAG_TH_LEVELS][MTO_MAX_DATA_RATE_LEVELS] =
{
{ 0, 1282, 630, 404, 288, 444, 232, 172, 144, 116, 100, 96},
{ 0, 1794, 817, 572, 400, 537, 316, 228, 188, 144, 124, 116},
{ 0, 2306, 1003, 744, 516, 630, 400, 288, 228, 172, 144, 136},
{ 0, 3330, 1375, 1084, 744, 817, 572, 400, 316, 228, 188, 172},
{ 0, 6402, 2492, 2108, 1424, 1375, 1084, 740, 572, 400, 316, 284}
};
#define MTO_ONE_EXCHANGE_TIME(preamble_type, frag_th_lvl, data_rate_lvl) \
(preamble_type) ? MTO_One_Exchange_Time_Tbl_s[frag_th_lvl][data_rate_lvl] : \
MTO_One_Exchange_Time_Tbl_l[frag_th_lvl][data_rate_lvl]
// Declare data rate table
//The following table will be changed at anytime if the opration rate supported by AP don't
//match the table
u8 MTO_Data_Rate_Tbl[MTO_MAX_DATA_RATE_LEVELS] =
{
2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108
};
//The Stardard_Data_Rate_Tbl and Level2PerTbl table is used to indirectly retreive PER
//information from Rate_PER_TBL
//The default settings is AP can support full rate set.
static u8 Stardard_Data_Rate_Tbl[MTO_MAX_DATA_RATE_LEVELS] =
{
2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108
};
static u8 Level2PerTbl[MTO_MAX_DATA_RATE_LEVELS] =
{
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};
//How many kind of tx rate can be supported by AP
//DTO will change Rate between MTO_Data_Rate_Tbl[0] and MTO_Data_Rate_Tbl[MTO_DataRateAvailableLevel-1]
static u8 MTO_DataRateAvailableLevel = MTO_MAX_DATA_RATE_LEVELS;
//Smoothed PER table for each different RATE based on packet length of 1514
static int Rate_PER_TBL[91][MTO_MAX_DATA_RATE_LEVELS] = {
// 1M 2M 5.5M 11M 6M 9M 12M 18M 24M 36M 48M 54M
/* 0% */{ 93, 177, 420, 538, 690, 774, 1001, 1401, 1768, 2358, 2838, 3039},
/* 1% */{ 92, 176, 416, 533, 683, 767, 992, 1389, 1752, 2336, 2811, 3010},
/* 2% */{ 91, 174, 412, 528, 675, 760, 983, 1376, 1735, 2313, 2783, 2979},
/* 3% */{ 90, 172, 407, 523, 667, 753, 973, 1363, 1719, 2290, 2755, 2948},
/* 4% */{ 90, 170, 403, 518, 659, 746, 964, 1350, 1701, 2266, 2726, 2916},
/* 5% */{ 89, 169, 398, 512, 651, 738, 954, 1336, 1684, 2242, 2696, 2884},
/* 6% */{ 88, 167, 394, 507, 643, 731, 944, 1322, 1666, 2217, 2665, 2851},
/* 7% */{ 87, 165, 389, 502, 635, 723, 935, 1308, 1648, 2192, 2634, 2817},
/* 8% */{ 86, 163, 384, 497, 626, 716, 924, 1294, 1629, 2166, 2602, 2782},
/* 9% */{ 85, 161, 380, 491, 618, 708, 914, 1279, 1611, 2140, 2570, 2747},
/* 10% */{ 84, 160, 375, 486, 609, 700, 904, 1265, 1591, 2113, 2537, 2711},
/* 11% */{ 83, 158, 370, 480, 600, 692, 894, 1250, 1572, 2086, 2503, 2675},
/* 12% */{ 82, 156, 365, 475, 592, 684, 883, 1234, 1552, 2059, 2469, 2638},
/* 13% */{ 81, 154, 360, 469, 583, 676, 872, 1219, 1532, 2031, 2435, 2600},
/* 14% */{ 80, 152, 355, 464, 574, 668, 862, 1204, 1512, 2003, 2400, 2562},
/* 15% */{ 79, 150, 350, 458, 565, 660, 851, 1188, 1492, 1974, 2365, 2524},
/* 16% */{ 78, 148, 345, 453, 556, 652, 840, 1172, 1471, 1945, 2329, 2485},
/* 17% */{ 77, 146, 340, 447, 547, 643, 829, 1156, 1450, 1916, 2293, 2446},
/* 18% */{ 76, 144, 335, 441, 538, 635, 818, 1140, 1429, 1887, 2256, 2406},
/* 19% */{ 75, 143, 330, 436, 529, 627, 807, 1124, 1408, 1857, 2219, 2366},
/* 20% */{ 74, 141, 325, 430, 520, 618, 795, 1107, 1386, 1827, 2182, 2326},
/* 21% */{ 73, 139, 320, 424, 510, 610, 784, 1091, 1365, 1797, 2145, 2285},
/* 22% */{ 72, 137, 314, 418, 501, 601, 772, 1074, 1343, 1766, 2107, 2244},
/* 23% */{ 71, 135, 309, 412, 492, 592, 761, 1057, 1321, 1736, 2069, 2203},
/* 24% */{ 70, 133, 304, 407, 482, 584, 749, 1040, 1299, 1705, 2031, 2161},
/* 25% */{ 69, 131, 299, 401, 473, 575, 738, 1023, 1277, 1674, 1992, 2120},
/* 26% */{ 68, 129, 293, 395, 464, 566, 726, 1006, 1254, 1642, 1953, 2078},
/* 27% */{ 67, 127, 288, 389, 454, 557, 714, 989, 1232, 1611, 1915, 2035},
/* 28% */{ 66, 125, 283, 383, 445, 549, 703, 972, 1209, 1579, 1876, 1993},
/* 29% */{ 65, 123, 278, 377, 436, 540, 691, 955, 1187, 1548, 1836, 1951},
/* 30% */{ 64, 121, 272, 371, 426, 531, 679, 937, 1164, 1516, 1797, 1908},
/* 31% */{ 63, 119, 267, 365, 417, 522, 667, 920, 1141, 1484, 1758, 1866},
/* 32% */{ 62, 117, 262, 359, 407, 513, 655, 902, 1118, 1453, 1719, 1823},
/* 33% */{ 61, 115, 256, 353, 398, 504, 643, 885, 1095, 1421, 1679, 1781},
/* 34% */{ 60, 113, 251, 347, 389, 495, 631, 867, 1072, 1389, 1640, 1738},
/* 35% */{ 59, 111, 246, 341, 379, 486, 619, 850, 1049, 1357, 1600, 1695},
/* 36% */{ 58, 108, 240, 335, 370, 477, 607, 832, 1027, 1325, 1561, 1653},
/* 37% */{ 57, 106, 235, 329, 361, 468, 595, 815, 1004, 1293, 1522, 1610},
/* 38% */{ 56, 104, 230, 323, 351, 459, 584, 797, 981, 1261, 1483, 1568},
/* 39% */{ 55, 102, 224, 317, 342, 450, 572, 780, 958, 1230, 1443, 1526},
/* 40% */{ 54, 100, 219, 311, 333, 441, 560, 762, 935, 1198, 1404, 1484},
/* 41% */{ 53, 98, 214, 305, 324, 432, 548, 744, 912, 1166, 1366, 1442},
/* 42% */{ 52, 96, 209, 299, 315, 423, 536, 727, 889, 1135, 1327, 1400},
/* 43% */{ 51, 94, 203, 293, 306, 414, 524, 709, 866, 1104, 1289, 1358},
/* 44% */{ 50, 92, 198, 287, 297, 405, 512, 692, 844, 1072, 1250, 1317},
/* 45% */{ 49, 90, 193, 281, 288, 396, 500, 675, 821, 1041, 1212, 1276},
/* 46% */{ 48, 88, 188, 275, 279, 387, 488, 657, 799, 1011, 1174, 1236},
/* 47% */{ 47, 86, 183, 269, 271, 378, 476, 640, 777, 980, 1137, 1195},
/* 48% */{ 46, 84, 178, 262, 262, 369, 464, 623, 754, 949, 1100, 1155},
/* 49% */{ 45, 82, 173, 256, 254, 360, 452, 606, 732, 919, 1063, 1116},
/* 50% */{ 44, 80, 168, 251, 245, 351, 441, 589, 710, 889, 1026, 1076},
/* 51% */{ 43, 78, 163, 245, 237, 342, 429, 572, 689, 860, 990, 1038},
/* 52% */{ 42, 76, 158, 239, 228, 333, 417, 555, 667, 830, 955, 999},
/* 53% */{ 41, 74, 153, 233, 220, 324, 406, 538, 645, 801, 919, 961},
/* 54% */{ 40, 72, 148, 227, 212, 315, 394, 522, 624, 773, 884, 924},
/* 55% */{ 39, 70, 143, 221, 204, 307, 383, 505, 603, 744, 850, 887},
/* 56% */{ 38, 68, 138, 215, 196, 298, 371, 489, 582, 716, 816, 851},
/* 57% */{ 37, 67, 134, 209, 189, 289, 360, 473, 562, 688, 783, 815},
/* 58% */{ 36, 65, 129, 203, 181, 281, 349, 457, 541, 661, 750, 780},
/* 59% */{ 35, 63, 124, 197, 174, 272, 338, 441, 521, 634, 717, 745},
/* 60% */{ 34, 61, 120, 192, 166, 264, 327, 425, 501, 608, 686, 712},
/* 61% */{ 33, 59, 115, 186, 159, 255, 316, 409, 482, 582, 655, 678},
/* 62% */{ 32, 57, 111, 180, 152, 247, 305, 394, 462, 556, 624, 646},
/* 63% */{ 31, 55, 107, 174, 145, 238, 294, 379, 443, 531, 594, 614},
/* 64% */{ 30, 53, 102, 169, 138, 230, 283, 364, 425, 506, 565, 583},
/* 65% */{ 29, 52, 98, 163, 132, 222, 273, 349, 406, 482, 536, 553},
/* 66% */{ 28, 50, 94, 158, 125, 214, 262, 334, 388, 459, 508, 523},
/* 67% */{ 27, 48, 90, 152, 119, 206, 252, 320, 370, 436, 481, 495},
/* 68% */{ 26, 46, 86, 147, 113, 198, 242, 306, 353, 413, 455, 467},
/* 69% */{ 26, 44, 82, 141, 107, 190, 231, 292, 336, 391, 429, 440},
/* 70% */{ 25, 43, 78, 136, 101, 182, 221, 278, 319, 370, 405, 414},
/* 71% */{ 24, 41, 74, 130, 95, 174, 212, 265, 303, 350, 381, 389},
/* 72% */{ 23, 39, 71, 125, 90, 167, 202, 252, 287, 329, 358, 365},
/* 73% */{ 22, 37, 67, 119, 85, 159, 192, 239, 271, 310, 335, 342},
/* 74% */{ 21, 36, 63, 114, 80, 151, 183, 226, 256, 291, 314, 320},
/* 75% */{ 20, 34, 60, 109, 75, 144, 174, 214, 241, 273, 294, 298},
/* 76% */{ 19, 32, 57, 104, 70, 137, 164, 202, 227, 256, 274, 278},
/* 77% */{ 18, 31, 53, 99, 66, 130, 155, 190, 213, 239, 256, 259},
/* 78% */{ 17, 29, 50, 94, 62, 122, 146, 178, 200, 223, 238, 241},
/* 79% */{ 16, 28, 47, 89, 58, 115, 138, 167, 187, 208, 222, 225},
/* 80% */{ 16, 26, 44, 84, 54, 109, 129, 156, 175, 194, 206, 209},
/* 81% */{ 15, 24, 41, 79, 50, 102, 121, 146, 163, 180, 192, 194},
/* 82% */{ 14, 23, 39, 74, 47, 95, 113, 136, 151, 167, 178, 181},
/* 83% */{ 13, 21, 36, 69, 44, 89, 105, 126, 140, 155, 166, 169},
/* 84% */{ 12, 20, 33, 64, 41, 82, 97, 116, 130, 144, 155, 158},
/* 85% */{ 11, 19, 31, 60, 39, 76, 89, 107, 120, 134, 145, 149},
/* 86% */{ 11, 17, 29, 55, 36, 70, 82, 98, 110, 125, 136, 140},
/* 87% */{ 10, 16, 26, 51, 34, 64, 75, 90, 102, 116, 128, 133},
/* 88% */{ 9, 14, 24, 46, 32, 58, 68, 81, 93, 108, 121, 128},
/* 89% */{ 8, 13, 22, 42, 31, 52, 61, 74, 86, 102, 116, 124},
/* 90% */{ 7, 12, 21, 37, 29, 46, 54, 66, 79, 96, 112, 121}
};
#define RSSIBUF_NUM 10
#define RSSI2RATE_SIZE 9
static TXRETRY_REC TxRateRec={MTO_MAX_DATA_RATE_LEVELS - 1, 0}; //new record=>TxRateRec
static int TxRetryRate;
//static int SQ3, BSS_PK_CNT, NIDLESLOT, SLOT_CNT, INTERF_CNT, GAP_CNT, DS_EVM;
static s32 RSSIBuf[RSSIBUF_NUM]={-70, -70, -70, -70, -70, -70, -70, -70, -70, -70};
static s32 RSSISmoothed=-700;
static int RSSIBufIndex=0;
static u8 max_rssi_rate;
static int rate_tbl[13] = {0,1,2,5,11,6,9,12,18,24,36,48,54};
//[WKCHEN]static core_data_t *pMTOcore_data=NULL;
static int TotalTxPkt = 0;
static int TotalTxPktRetry = 0;
static int TxPktPerAnt[3] = {0,0,0};
static int RXRSSIANT[3] ={-70,-70,-70};
static int TxPktRetryPerAnt[3] = {0,0,0};
//static int TxDominateFlag=FALSE;
static u8 old_antenna[4]={1 ,0 ,1 ,0};
static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS];//this record the retry rate at different data rate
static int PeriodTotalTxPkt = 0;
static int PeriodTotalTxPktRetry = 0;
typedef struct
{
s32 RSSI;
u8 TxRate;
}RSSI2RATE;
static RSSI2RATE RSSI2RateTbl[RSSI2RATE_SIZE] =
{
{-740, 108}, // 54M
{-760, 96}, // 48M
{-820, 72}, // 36M
{-850, 48}, // 24M
{-870, 36}, // 18M
{-890, 24}, // 12M
{-900, 12}, // 6M
{-920, 11}, // 5.5M
{-950, 4}, // 2M
};
static u8 untogglecount;
static u8 last_rate_ant; //this is used for antenna backoff-hh
u8 boSparseTxTraffic = FALSE;
void MTO_Init(MTO_FUNC_INPUT);
void AntennaToggleInitiator(MTO_FUNC_INPUT);
void AntennaToggleState(MTO_FUNC_INPUT);
void TxPwrControl(MTO_FUNC_INPUT);
void GetFreshAntennaData(MTO_FUNC_INPUT);
void TxRateReductionCtrl(MTO_FUNC_INPUT);
/** 1.1.31.1000 Turbo modify */
//void MTO_SetDTORateRange(int type);
void MTO_SetDTORateRange(MTO_FUNC_INPUT, u8 *pRateArray, u8 ArraySize);
void MTO_SetTxCount(MTO_FUNC_INPUT, u8 t0, u8 index);
void MTO_TxFailed(MTO_FUNC_INPUT);
void SmoothRSSI(s32 new_rssi);
void hal_get_dto_para(MTO_FUNC_INPUT, char *buffer);
u8 CalcNewRate(MTO_FUNC_INPUT, u8 old_rate, u32 retry_cnt, u32 tx_frag_cnt);
u8 GetMaxRateLevelFromRSSI(void);
u8 MTO_GetTxFallbackRate(MTO_FUNC_INPUT);
int Divide(int a, int b);
void multiagc(MTO_FUNC_INPUT, u8 high_gain_mode);
//===========================================================================
// MTO_Init --
//
// Description:
// Set DTO Tx Rate Scope because different AP could have different Rate set.
// After our staion join with AP, LM core will call this function to initialize
// Tx Rate table.
//
// Arguments:
// pRateArray - The pointer to the Tx Rate Array by the following order
// - 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108
// - DTO won't check whether rate order is invalid or not
// ArraySize - The array size to indicate how many tx rate we can choose
//
// sample code:
// {
// u8 RateArray[4] = {2, 4, 11, 22};
// MTO_SetDTORateRange(RateArray, 4);
// }
//
// Return Value:
// None
//============================================================================
void MTO_SetDTORateRange(MTO_FUNC_INPUT,u8 *pRateArray, u8 ArraySize)
{
u8 i, j=0;
for(i=0;i<ArraySize;i++)
{
if(pRateArray[i] == 22)
break;
}
if(i < ArraySize) //we need adjust the order of rate list because 11Mbps rate exists
{
for(;i>0;i--)
{
if(pRateArray[i-1] <= 11)
break;
pRateArray[i] = pRateArray[i-1];
}
pRateArray[i] = 22;
MTO_OFDM_RATE_LEVEL() = i;
}
else
{
for(i=0; i<ArraySize; i++)
{
if (pRateArray[i] >= 12)
break;
}
MTO_OFDM_RATE_LEVEL() = i;
}
for(i=0;i<ArraySize;i++)
{
MTO_Data_Rate_Tbl[i] = pRateArray[i];
for(;j<MTO_MAX_DATA_RATE_LEVELS;j++)
{
if(Stardard_Data_Rate_Tbl[j] == pRateArray[i])
break;
}
Level2PerTbl[i] = j;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[MTO]:Op Rate[%d]: %d\n",i, MTO_Data_Rate_Tbl[i]));
#endif
}
MTO_DataRateAvailableLevel = ArraySize;
if( MTO_DATA().RatePolicy ) // 0 means that no registry setting
{
if( MTO_DATA().RatePolicy == 1 )
TxRateRec.tx_rate = 0; //ascent
else
TxRateRec.tx_rate = MTO_DataRateAvailableLevel -1 ; //descent
}
else
{
if( MTO_INITTXRATE_MODE )
TxRateRec.tx_rate = 0; //ascent
else
TxRateRec.tx_rate = MTO_DataRateAvailableLevel -1 ; //descent
}
TxRateRec.tx_retry_rate = 0;
//set default rate for initial use
MTO_RATE_LEVEL() = TxRateRec.tx_rate;
MTO_FALLBACK_RATE_LEVEL() = MTO_RATE_LEVEL();
}
//===========================================================================
// MTO_Init --
//
// Description:
// Initialize MTO parameters.
//
// This function should be invoked during system initialization.
//
// Arguments:
// Adapter - The pointer to the Miniport Adapter Context
//
// Return Value:
// None
//============================================================================
void MTO_Init(MTO_FUNC_INPUT)
{
int i;
//WBDEBUG(("[MTO] -> MTO_Init()\n"));
//[WKCHEN]pMTOcore_data = pcore_data;
// 20040510 Turbo add for global variable
MTO_TMR_CNT() = 0;
MTO_TOGGLE_STATE() = TOGGLE_STATE_IDLE;
MTO_TX_RATE_REDUCTION_STATE() = RATE_CHGSTATE_IDLE;
MTO_BACKOFF_TMR() = 0;
MTO_LAST_RATE() = 11;
MTO_CO_EFFICENT() = 0;
//MTO_TH_FIXANT() = MTO_DEFAULT_TH_FIXANT;
MTO_TH_CNT() = MTO_DEFAULT_TH_CNT;
MTO_TH_SQ3() = MTO_DEFAULT_TH_SQ3;
MTO_TH_IDLE_SLOT() = MTO_DEFAULT_TH_IDLE_SLOT;
MTO_TH_PR_INTERF() = MTO_DEFAULT_TH_PR_INTERF;
MTO_TMR_AGING() = MTO_DEFAULT_TMR_AGING;
MTO_TMR_PERIODIC() = MTO_DEFAULT_TMR_PERIODIC;
//[WKCHEN]MTO_CCA_MODE_SETUP()= (u8) hal_get_cca_mode(MTO_HAL());
//[WKCHEN]MTO_CCA_MODE() = MTO_CCA_MODE_SETUP();
//MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_LONG;
MTO_PREAMBLE_TYPE() = MTO_PREAMBLE_SHORT; // for test
MTO_ANT_SEL() = hal_get_antenna_number(MTO_HAL());
MTO_ANT_MAC() = MTO_ANT_SEL();
MTO_CNT_ANT(0) = 0;
MTO_CNT_ANT(1) = 0;
MTO_SQ_ANT(0) = 0;
MTO_SQ_ANT(1) = 0;
MTO_ANT_DIVERSITY() = MTO_ANTENNA_DIVERSITY_ON;
//CardSet_AntennaDiversity(Adapter, MTO_ANT_DIVERSITY());
//PLMESetAntennaDiversity( Adapter, MTO_ANT_DIVERSITY());
MTO_AGING_TIMEOUT() = 0;//MTO_TMR_AGING() / MTO_TMR_PERIODIC();
// The following parameters should be initialized to the values set by user
//
//MTO_RATE_LEVEL() = 10;
MTO_RATE_LEVEL() = 0;
MTO_FALLBACK_RATE_LEVEL() = MTO_RATE_LEVEL();
MTO_FRAG_TH_LEVEL() = 4;
/** 1.1.23.1000 Turbo modify from -1 to +1
MTO_RTS_THRESHOLD() = MTO_FRAG_TH() - 1;
MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() - 1;
*/
MTO_RTS_THRESHOLD() = MTO_FRAG_TH() + 1;
MTO_RTS_THRESHOLD_SETUP() = MTO_FRAG_TH() + 1;
// 1.1.23.1000 Turbo add for mto change preamble from 0 to 1
MTO_RATE_CHANGE_ENABLE() = 1;
MTO_FRAG_CHANGE_ENABLE() = 0; // 1.1.29.1000 Turbo add don't support frag
//The default valud of ANTDIV_DEFAULT_ON will be decided by EEPROM
//#ifdef ANTDIV_DEFAULT_ON
//MTO_ANT_DIVERSITY_ENABLE() = 1;
//#else
//MTO_ANT_DIVERSITY_ENABLE() = 0;
//#endif
MTO_POWER_CHANGE_ENABLE() = 1;
MTO_PREAMBLE_CHANGE_ENABLE()= 1;
MTO_RTS_CHANGE_ENABLE() = 0; // 1.1.29.1000 Turbo add don't support frag
// 20040512 Turbo add
//old_antenna[0] = 1;
//old_antenna[1] = 0;
//old_antenna[2] = 1;
//old_antenna[3] = 0;
for (i=0;i<MTO_MAX_DATA_RATE_LEVELS;i++)
retryrate_rec[i]=5;
MTO_TXFLOWCOUNT() = 0;
//--------- DTO threshold parameters -------------
//MTOPARA_PERIODIC_CHECK_CYCLE() = 50;
MTOPARA_PERIODIC_CHECK_CYCLE() = 10;
MTOPARA_RSSI_TH_FOR_ANTDIV() = 10;
MTOPARA_TXCOUNT_TH_FOR_CALC_RATE() = 50;
MTOPARA_TXRATE_INC_TH() = 10;
MTOPARA_TXRATE_DEC_TH() = 30;
MTOPARA_TXRATE_EQ_TH() = 40;
MTOPARA_TXRATE_BACKOFF() = 12;
MTOPARA_TXRETRYRATE_REDUCE() = 6;
if ( MTO_TXPOWER_FROM_EEPROM == 0xff)
{
switch( MTO_HAL()->phy_type)
{
case RF_AIROHA_2230:
case RF_AIROHA_2230S: // 20060420 Add this
MTOPARA_TXPOWER_INDEX() = 46; // MAX-8 // @@ Only for AL 2230
break;
case RF_AIROHA_7230:
MTOPARA_TXPOWER_INDEX() = 49;
break;
case RF_WB_242:
MTOPARA_TXPOWER_INDEX() = 10;
break;
case RF_WB_242_1:
MTOPARA_TXPOWER_INDEX() = 24; // ->10 20060316.1 modify
break;
}
}
else //follow the setting from EEPROM
MTOPARA_TXPOWER_INDEX() = MTO_TXPOWER_FROM_EEPROM;
hal_set_rf_power(MTO_HAL(), (u8)MTOPARA_TXPOWER_INDEX());
//------------------------------------------------
// For RSSI turning 20060808.4 Cancel load from EEPROM
MTO_DATA().RSSI_high = -41;
MTO_DATA().RSSI_low = -60;
}
//---------------------------------------------------------------------------//
static u32 DTO_Rx_Info[13][3];
static u32 DTO_RxCRCFail_Info[13][3];
static u32 AntennaToggleBkoffTimer=5;
typedef struct{
int RxRate;
int RxRatePkts;
int index;
}RXRATE_ANT;
RXRATE_ANT RxRatePeakAnt[3];
#define ANT0 0
#define ANT1 1
#define OLD_ANT 2
void SearchPeakRxRate(int index)
{
int i;
RxRatePeakAnt[index].RxRatePkts=0;
//Find out the best rx rate which is used on different antenna
for(i=1;i<13;i++)
{
if(DTO_Rx_Info[i][index] > (u32) RxRatePeakAnt[index].RxRatePkts)
{
RxRatePeakAnt[index].RxRatePkts = DTO_Rx_Info[i][index];
RxRatePeakAnt[index].RxRate = rate_tbl[i];
RxRatePeakAnt[index].index = i;
}
}
}
void ResetDTO_RxInfo(int index, MTO_FUNC_INPUT)
{
int i;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("ResetDTOrx\n"));
#endif
for(i=0;i<13;i++)
DTO_Rx_Info[i][index] = MTO_HAL()->rx_ok_count[i];
for(i=0;i<13;i++)
DTO_RxCRCFail_Info[i][index] = MTO_HAL()->rx_err_count[i];
TotalTxPkt = 0;
TotalTxPktRetry = 0;
}
void GetDTO_RxInfo(int index, MTO_FUNC_INPUT)
{
int i;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("GetDTOrx\n"));
#endif
//PDEBUG(("[MTO]:DTO_Rx_Info[%d]=%d, rx_ok_count=%d\n", index, DTO_Rx_Info[0][index], phw_data->rx_ok_count[0]));
for(i=0;i<13;i++)
DTO_Rx_Info[i][index] = abs(MTO_HAL()->rx_ok_count[i] - DTO_Rx_Info[i][index]);
if(DTO_Rx_Info[0][index]==0) DTO_Rx_Info[0][index] = 1;
for(i=0;i<13;i++)
DTO_RxCRCFail_Info[i][index] = MTO_HAL()->rx_err_count[i] - DTO_RxCRCFail_Info[i][index];
TxPktPerAnt[index] = TotalTxPkt;
TxPktRetryPerAnt[index] = TotalTxPktRetry;
TotalTxPkt = 0;
TotalTxPktRetry = 0;
}
void OutputDebugInfo(int index1, int index2)
{
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:Total Rx (%d)\t\t(%d) \n ", DTO_Rx_Info[0][index1], DTO_Rx_Info[0][index2]));
WBDEBUG(("[HHDTO]:RECEIVE RSSI: (%d)\t\t(%d) \n ", RXRSSIANT[index1], RXRSSIANT[index2]));
WBDEBUG(("[HHDTO]:TX packet correct rate: (%d)%%\t\t(%d)%% \n ",Divide(TxPktPerAnt[index1]*100,TxPktRetryPerAnt[index1]), Divide(TxPktPerAnt[index2]*100,TxPktRetryPerAnt[index2])));
#endif
{
int tmp1, tmp2;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:Total Tx (%d)\t\t(%d) \n ", TxPktPerAnt[index1], TxPktPerAnt[index2]));
WBDEBUG(("[HHDTO]:Total Tx retry (%d)\t\t(%d) \n ", TxPktRetryPerAnt[index1], TxPktRetryPerAnt[index2]));
#endif
tmp1 = TxPktPerAnt[index1] + DTO_Rx_Info[0][index1];
tmp2 = TxPktPerAnt[index2] + DTO_Rx_Info[0][index2];
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:Total Tx+RX (%d)\t\t(%d) \n ", tmp1, tmp2));
#endif
}
}
unsigned char TxDominate(int index)
{
int tmp;
tmp = TxPktPerAnt[index] + DTO_Rx_Info[0][index];
if(Divide(TxPktPerAnt[index]*100, tmp) > 40)
return TRUE;
else
return FALSE;
}
unsigned char CmpTxRetryRate(int index1, int index2)
{
int tx_retry_rate1, tx_retry_rate2;
tx_retry_rate1 = Divide((TxPktRetryPerAnt[index1] - TxPktPerAnt[index1])*100, TxPktRetryPerAnt[index1]);
tx_retry_rate2 = Divide((TxPktRetryPerAnt[index2] - TxPktPerAnt[index2])*100, TxPktRetryPerAnt[index2]);
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[MTO]:TxRetry Ant0: (%d%%) Ant1: (%d%%) \n ", tx_retry_rate1, tx_retry_rate2));
#endif
if(tx_retry_rate1 > tx_retry_rate2)
return TRUE;
else
return FALSE;
}
void GetFreshAntennaData(MTO_FUNC_INPUT)
{
u8 x;
x = hal_get_antenna_number(MTO_HAL());
//hal_get_bss_pk_cnt(MTO_HAL());
//hal_get_est_sq3(MTO_HAL(), 1);
old_antenna[0] = x;
//if this is the function for timer
ResetDTO_RxInfo(x, MTO_FUNC_INPUT_DATA);
if(AntennaToggleBkoffTimer)
AntennaToggleBkoffTimer--;
if (abs(last_rate_ant-MTO_RATE_LEVEL())>1) //backoff timer reset
AntennaToggleBkoffTimer=0;
if (MTO_ANT_DIVERSITY() != MTO_ANTENNA_DIVERSITY_ON ||
MTO_ANT_DIVERSITY_ENABLE() != 1)
AntennaToggleBkoffTimer=1;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:**last data rate=%d,now data rate=%d**antenna toggle timer=%d",last_rate_ant,MTO_RATE_LEVEL(),AntennaToggleBkoffTimer));
#endif
last_rate_ant=MTO_RATE_LEVEL();
if(AntennaToggleBkoffTimer==0)
{
MTO_TOGGLE_STATE() = TOGGLE_STATE_WAIT0;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:===state is starting==for antenna toggle==="));
#endif
}
else
MTO_TOGGLE_STATE() = TOGGLE_STATE_IDLE;
if ((MTO_BACKOFF_TMR()!=0)&&(MTO_RATE_LEVEL()>MTO_DataRateAvailableLevel - 3))
{
MTO_TOGGLE_STATE() = TOGGLE_STATE_IDLE;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:===the data rate is %d (good)and will not toogle ===",MTO_DATA_RATE()>>1));
#endif
}
}
int WB_PCR[2]; //packet correct rate
void AntennaToggleState(MTO_FUNC_INPUT)
{
int decideantflag = 0;
u8 x;
s32 rssi;
if(MTO_ANT_DIVERSITY_ENABLE() != 1)
return;
x = hal_get_antenna_number(MTO_HAL());
switch(MTO_TOGGLE_STATE())
{
//Missing.....
case TOGGLE_STATE_IDLE:
case TOGGLE_STATE_BKOFF:
break;;
case TOGGLE_STATE_WAIT0://========
GetDTO_RxInfo(x, MTO_FUNC_INPUT_DATA);
sme_get_rssi(MTO_FUNC_INPUT_DATA, &rssi);
RXRSSIANT[x] = rssi;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO] **wait0==== Collecting Ant%d--rssi=%d\n", x,RXRSSIANT[x]));
#endif
//change antenna and reset the data at changed antenna
x = (~x) & 0x01;
MTO_ANT_SEL() = x;
hal_set_antenna_number(MTO_HAL(), MTO_ANT_SEL());
LOCAL_ANTENNA_NO() = x;
MTO_TOGGLE_STATE() = TOGGLE_STATE_WAIT1;//go to wait1
ResetDTO_RxInfo(x, MTO_FUNC_INPUT_DATA);
break;
case TOGGLE_STATE_WAIT1://=====wait1
//MTO_CNT_ANT(x) = hal_get_bss_pk_cnt(MTO_HAL());
//RXRSSIANT[x] = hal_get_rssi(MTO_HAL());
sme_get_rssi(MTO_FUNC_INPUT_DATA, &rssi);
RXRSSIANT[x] = rssi;
GetDTO_RxInfo(x, MTO_FUNC_INPUT_DATA);
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO] **wait1==== Collecting Ant%d--rssi=%d\n", x,RXRSSIANT[x]));
#endif
MTO_TOGGLE_STATE() = TOGGLE_STATE_MAKEDESISION;
break;
case TOGGLE_STATE_MAKEDESISION:
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:Ant--0-----------------1---\n"));
OutputDebugInfo(ANT0,ANT1);
#endif
//PDEBUG(("[HHDTO] **decision====\n "));
//=====following is the decision produrce
//
// first: compare the rssi if difference >10
// select the larger one
// ,others go to second
// second: comapre the tx+rx packet count if difference >100
// use larger total packets antenna
// third::compare the tx PER if packets>20
// if difference >5% using the bigger one
//
// fourth:compare the RX PER if packets>20
// if PER difference <5%
// using old antenna
//
//
if (abs(RXRSSIANT[ANT0]-RXRSSIANT[ANT1]) > MTOPARA_RSSI_TH_FOR_ANTDIV())//====rssi_th
{
if (RXRSSIANT[ANT0]>RXRSSIANT[ANT1])
{
decideantflag=1;
MTO_ANT_MAC() = ANT0;
}
else
{
decideantflag=1;
MTO_ANT_MAC() = ANT1;
}
#ifdef _PE_DTO_DUMP_
WBDEBUG(("Select antenna by RSSI\n"));
#endif
}
else if (abs(TxPktPerAnt[ANT0] + DTO_Rx_Info[0][ANT0]-TxPktPerAnt[ANT1]-DTO_Rx_Info[0][ANT1])<50)//=====total packet_th
{
#ifdef _PE_DTO_DUMP_
WBDEBUG(("Total tx/rx is close\n"));
#endif
if (TxDominate(ANT0) && TxDominate(ANT1))
{
if ((TxPktPerAnt[ANT0]>10) && (TxPktPerAnt[ANT1]>10))//====tx packet_th
{
WB_PCR[ANT0]=Divide(TxPktPerAnt[ANT0]*100,TxPktRetryPerAnt[ANT0]);
WB_PCR[ANT1]=Divide(TxPktPerAnt[ANT1]*100,TxPktRetryPerAnt[ANT1]);
if (abs(WB_PCR[ANT0]-WB_PCR[ANT1])>5)// tx PER_th
{
#ifdef _PE_DTO_DUMP_
WBDEBUG(("Decide by Tx correct rate\n"));
#endif
if (WB_PCR[ANT0]>WB_PCR[ANT1])
{
decideantflag=1;
MTO_ANT_MAC() = ANT0;
}
else
{
decideantflag=1;
MTO_ANT_MAC() = ANT1;
}
}
else
{
decideantflag=0;
untogglecount++;
MTO_ANT_MAC() = old_antenna[0];
}
}
else
{
decideantflag=0;
MTO_ANT_MAC() = old_antenna[0];
}
}
else if ((DTO_Rx_Info[0][ANT0]>10)&&(DTO_Rx_Info[0][ANT1]>10))//rx packet th
{
#ifdef _PE_DTO_DUMP_
WBDEBUG(("Decide by Rx\n"));
#endif
if (abs(DTO_Rx_Info[0][ANT0] - DTO_Rx_Info[0][ANT1])>50)
{
if (DTO_Rx_Info[0][ANT0] > DTO_Rx_Info[0][ANT1])
{
decideantflag=1;
MTO_ANT_MAC() = ANT0;
}
else
{
decideantflag=1;
MTO_ANT_MAC() = ANT1;
}
}
else
{
decideantflag=0;
untogglecount++;
MTO_ANT_MAC() = old_antenna[0];
}
}
else
{
decideantflag=0;
MTO_ANT_MAC() = old_antenna[0];
}
}
else if ((TxPktPerAnt[ANT0]+DTO_Rx_Info[0][ANT0])>(TxPktPerAnt[ANT1]+DTO_Rx_Info[0][ANT1]))//use more packekts
{
#ifdef _PE_DTO_DUMP_
WBDEBUG(("decide by total tx/rx : ANT 0\n"));
#endif
decideantflag=1;
MTO_ANT_MAC() = ANT0;
}
else
{
#ifdef _PE_DTO_DUMP_
WBDEBUG(("decide by total tx/rx : ANT 1\n"));
#endif
decideantflag=1;
MTO_ANT_MAC() = ANT1;
}
//this is force ant toggle
if (decideantflag==1)
untogglecount=0;
untogglecount=untogglecount%4;
if (untogglecount==3) //change antenna
MTO_ANT_MAC() = ((~old_antenna[0]) & 0x1);
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:==================untoggle-count=%d",untogglecount));
#endif
//PDEBUG(("[HHDTO] **********************************DTO ENABLE=%d",MTO_ANT_DIVERSITY_ENABLE()));
if(MTO_ANT_DIVERSITY_ENABLE() == 1)
{
MTO_ANT_SEL() = MTO_ANT_MAC();
hal_set_antenna_number(MTO_HAL(), MTO_ANT_SEL());
LOCAL_ANTENNA_NO() = MTO_ANT_SEL();
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO] ==decision==*******antflag=%d******************selected antenna=%d\n",decideantflag,MTO_ANT_SEL()));
#endif
}
if (decideantflag)
{
old_antenna[3]=old_antenna[2];//store antenna info
old_antenna[2]=old_antenna[1];
old_antenna[1]=old_antenna[0];
old_antenna[0]= MTO_ANT_MAC();
}
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:**old antenna=[%d][%d][%d][%d]\n",old_antenna[0],old_antenna[1],old_antenna[2],old_antenna[3]));
#endif
if (old_antenna[0]!=old_antenna[1])
AntennaToggleBkoffTimer=0;
else if (old_antenna[1]!=old_antenna[2])
AntennaToggleBkoffTimer=1;
else if (old_antenna[2]!=old_antenna[3])
AntennaToggleBkoffTimer=2;
else
AntennaToggleBkoffTimer=4;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTO]:**back off timer=%d",AntennaToggleBkoffTimer));
#endif
ResetDTO_RxInfo(MTO_ANT_MAC(), MTO_FUNC_INPUT_DATA);
if (AntennaToggleBkoffTimer==0 && decideantflag)
MTO_TOGGLE_STATE() = TOGGLE_STATE_WAIT0;
else
MTO_TOGGLE_STATE() = TOGGLE_STATE_IDLE;
break;
}
}
void multiagc(MTO_FUNC_INPUT, u8 high_gain_mode )
{
s32 rssi;
hw_data_t *pHwData = MTO_HAL();
sme_get_rssi(MTO_FUNC_INPUT_DATA, &rssi);
if( (RF_WB_242 == pHwData->phy_type) ||
(RF_WB_242_1 == pHwData->phy_type) ) // 20060619.5 Add
{
if (high_gain_mode==1)
{
//hw_set_dxx_reg(phw_data, 0x0C, 0xf8f52230);
//hw_set_dxx_reg(phw_data, 0x20, 0x06C43440);
Wb35Reg_Write( pHwData, 0x100C, 0xF2F32232 ); // 940916 0xf8f52230 );
Wb35Reg_Write( pHwData, 0x1020, 0x04cb3440 ); // 940915 0x06C43440
}
else if (high_gain_mode==0)
{
//hw_set_dxx_reg(phw_data, 0x0C, 0xEEEE000D);
//hw_set_dxx_reg(phw_data, 0x20, 0x06c41440);
Wb35Reg_Write( pHwData, 0x100C, 0xEEEE000D );
Wb35Reg_Write( pHwData, 0x1020, 0x04cb1440 ); // 940915 0x06c41440
}
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[HHDTOAGC] **rssi=%d, high gain mode=%d", rssi, high_gain_mode));
#endif
}
}
void TxPwrControl(MTO_FUNC_INPUT)
{
s32 rssi;
hw_data_t *pHwData = MTO_HAL();
sme_get_rssi(MTO_FUNC_INPUT_DATA, &rssi);
if( (RF_WB_242 == pHwData->phy_type) ||
(RF_WB_242_1 == pHwData->phy_type) ) // 20060619.5 Add
{
static u8 high_gain_mode; //this is for winbond RF switch LNA
//using different register setting
if (high_gain_mode==1)
{
if( rssi > MTO_DATA().RSSI_high )
{
//hw_set_dxx_reg(phw_data, 0x0C, 0xf8f52230);
//hw_set_dxx_reg(phw_data, 0x20, 0x05541640);
high_gain_mode=0;
}
else
{
//hw_set_dxx_reg(phw_data, 0x0C, 0xf8f51830);
//hw_set_dxx_reg(phw_data, 0x20, 0x05543E40);
high_gain_mode=1;
}
}
else //if (high_gain_mode==0)
{
if( rssi < MTO_DATA().RSSI_low )
{
//hw_set_dxx_reg(phw_data, 0x0C, 0xf8f51830);
//hw_set_dxx_reg(phw_data, 0x20, 0x05543E40);
high_gain_mode=1;
}
else
{
//hw_set_dxx_reg(phw_data, 0x0C, 0xf8f52230);
//hw_set_dxx_reg(phw_data, 0x20, 0x05541640);
high_gain_mode=0;
}
}
// Always high gain 20051014. Using the initial value only.
multiagc(MTO_FUNC_INPUT_DATA, high_gain_mode);
}
}
u8 CalcNewRate(MTO_FUNC_INPUT, u8 old_rate, u32 retry_cnt, u32 tx_frag_cnt)
{
int i;
u8 new_rate;
u32 retry_rate;
int TxThrouput1, TxThrouput2, TxThrouput3, BestThroupht;
if(tx_frag_cnt < MTOPARA_TXCOUNT_TH_FOR_CALC_RATE()) //too few packets transmit
{
return 0xff;
}
retry_rate = Divide(retry_cnt * 100, tx_frag_cnt);
if(retry_rate > 90) retry_rate = 90; //always truncate to 90% due to lookup table size
#ifdef _PE_DTO_DUMP_
WBDEBUG(("##### Current level =%d, Retry count =%d, Frag count =%d\n",
old_rate, retry_cnt, tx_frag_cnt));
WBDEBUG(("*##* Retry rate =%d, throughput =%d\n",
retry_rate, Rate_PER_TBL[retry_rate][old_rate]));
WBDEBUG(("TxRateRec.tx_rate =%d, Retry rate = %d, throughput = %d\n",
TxRateRec.tx_rate, TxRateRec.tx_retry_rate,
Rate_PER_TBL[TxRateRec.tx_retry_rate][Level2PerTbl[TxRateRec.tx_rate]]));
WBDEBUG(("old_rate-1 =%d, Retry rate = %d, throughput = %d\n",
old_rate-1, retryrate_rec[old_rate-1],
Rate_PER_TBL[retryrate_rec[old_rate-1]][old_rate-1]));
WBDEBUG(("old_rate+1 =%d, Retry rate = %d, throughput = %d\n",
old_rate+1, retryrate_rec[old_rate+1],
Rate_PER_TBL[retryrate_rec[old_rate+1]][old_rate+1]));
#endif
//following is for record the retry rate at the different data rate
if (abs(retry_rate-retryrate_rec[old_rate])<50)//---the per TH
retryrate_rec[old_rate] = retry_rate; //update retry rate
else
{
for (i=0;i<MTO_DataRateAvailableLevel;i++) //reset all retry rate
retryrate_rec[i]=0;
retryrate_rec[old_rate] = retry_rate;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("Reset retry rate table\n"));
#endif
}
if(TxRateRec.tx_rate > old_rate) //Decrease Tx Rate
{
TxThrouput1 = Rate_PER_TBL[TxRateRec.tx_retry_rate][Level2PerTbl[TxRateRec.tx_rate]];
TxThrouput2 = Rate_PER_TBL[retry_rate][Level2PerTbl[old_rate]];
if(TxThrouput1 > TxThrouput2)
{
new_rate = TxRateRec.tx_rate;
BestThroupht = TxThrouput1;
}
else
{
new_rate = old_rate;
BestThroupht = TxThrouput2;
}
if((old_rate > 0) &&(retry_rate>MTOPARA_TXRATE_DEC_TH())) //Min Rate
{
TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate-1]][Level2PerTbl[old_rate-1]];
if(BestThroupht < TxThrouput3)
{
new_rate = old_rate - 1;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("--------\n"));
#endif
BestThroupht = TxThrouput3;
}
}
}
else if(TxRateRec.tx_rate < old_rate) //Increase Tx Rate
{
TxThrouput1 = Rate_PER_TBL[TxRateRec.tx_retry_rate][Level2PerTbl[TxRateRec.tx_rate]];
TxThrouput2 = Rate_PER_TBL[retry_rate][Level2PerTbl[old_rate]];
if(TxThrouput1 > TxThrouput2)
{
new_rate = TxRateRec.tx_rate;
BestThroupht = TxThrouput1;
}
else
{
new_rate = old_rate;
BestThroupht = TxThrouput2;
}
if ((old_rate < MTO_DataRateAvailableLevel - 1)&&(retry_rate<MTOPARA_TXRATE_INC_TH()))
{
//TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate+1]][Level2PerTbl[old_rate+1]];
if (retryrate_rec[old_rate+1] > MTOPARA_TXRETRYRATE_REDUCE())
TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate+1]-MTOPARA_TXRETRYRATE_REDUCE()][Level2PerTbl[old_rate+1]];
else
TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate+1]][Level2PerTbl[old_rate+1]];
if(BestThroupht < TxThrouput3)
{
new_rate = old_rate + 1;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("++++++++++\n"));
#endif
BestThroupht = TxThrouput3;
}
}
}
else //Tx Rate no change
{
TxThrouput2 = Rate_PER_TBL[retry_rate][Level2PerTbl[old_rate]];
new_rate = old_rate;
BestThroupht = TxThrouput2;
if (retry_rate <MTOPARA_TXRATE_EQ_TH()) //th for change higher rate
{
if(old_rate < MTO_DataRateAvailableLevel - 1)
{
//TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate+1]][Level2PerTbl[old_rate+1]];
if (retryrate_rec[old_rate+1] > MTOPARA_TXRETRYRATE_REDUCE())
TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate+1]-MTOPARA_TXRETRYRATE_REDUCE()][Level2PerTbl[old_rate+1]];
else
TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate+1]][Level2PerTbl[old_rate+1]];
if(BestThroupht < TxThrouput3)
{
new_rate = old_rate + 1;
BestThroupht = TxThrouput3;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("=++++++++++\n"));
#endif
}
}
}
else
if(old_rate > 0) //Min Rate
{
TxThrouput3 = Rate_PER_TBL[retryrate_rec[old_rate-1]][Level2PerTbl[old_rate-1]];
if(BestThroupht < TxThrouput3)
{
new_rate = old_rate - 1;
#ifdef _PE_DTO_DUMP_
WBDEBUG(("=--------\n"));
#endif
BestThroupht = TxThrouput3;
}
}
}
if (!LOCAL_IS_IBSS_MODE())
{
max_rssi_rate = GetMaxRateLevelFromRSSI();
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[MTO]:RSSI2Rate=%d\n", MTO_Data_Rate_Tbl[max_rssi_rate]));
#endif
if(new_rate > max_rssi_rate)
new_rate = max_rssi_rate;
}
//save new rate;
TxRateRec.tx_rate = old_rate;
TxRateRec.tx_retry_rate = (u8) retry_rate;
TxRetryRate = retry_rate;
return new_rate;
}
void SmoothRSSI(s32 new_rssi)
{
RSSISmoothed = RSSISmoothed + new_rssi - RSSIBuf[RSSIBufIndex];
RSSIBuf[RSSIBufIndex] = new_rssi;
RSSIBufIndex = (RSSIBufIndex + 1) % 10;
}
u8 GetMaxRateLevelFromRSSI(void)
{
u8 i;
u8 TxRate;
for(i=0;i<RSSI2RATE_SIZE;i++)
{
if(RSSISmoothed > RSSI2RateTbl[i].RSSI)
break;
}
#ifdef _PE_DTO_DUMP_
WBDEBUG(("[MTO]:RSSI=%d\n", Divide(RSSISmoothed, 10)));
#endif
if(i < RSSI2RATE_SIZE)
TxRate = RSSI2RateTbl[i].TxRate;
else
TxRate = 2; //divided by 2 = 1Mbps
for(i=MTO_DataRateAvailableLevel-1;i>0;i--)
{
if(TxRate >=MTO_Data_Rate_Tbl[i])
break;
}
return i;
}
//===========================================================================
// Description:
// If we enable DTO, we will ignore the tx count with different tx rate from
// DTO rate. This is because when we adjust DTO tx rate, there could be some
// packets in the tx queue with previous tx rate
void MTO_SetTxCount(MTO_FUNC_INPUT, u8 tx_rate, u8 index)
{
MTO_TXFLOWCOUNT()++;
if ((MTO_ENABLE==1) && (MTO_RATE_CHANGE_ENABLE()==1))
{
if(tx_rate == MTO_DATA_RATE())
{
if (index == 0)
{
if (boSparseTxTraffic)
MTO_HAL()->dto_tx_frag_count += MTOPARA_PERIODIC_CHECK_CYCLE();
else
MTO_HAL()->dto_tx_frag_count += 1;
}
else
{
if (index<8)
{
MTO_HAL()->dto_tx_retry_count += index;
MTO_HAL()->dto_tx_frag_count += (index+1);
}
else
{
MTO_HAL()->dto_tx_retry_count += 7;
MTO_HAL()->dto_tx_frag_count += 7;
}
}
}
else if(MTO_DATA_RATE()>48 && tx_rate ==48)
{//ALFRED
if (index<3) //for reduciing data rate scheme ,
//do not calcu different data rate
//3 is the reducing data rate at retry
{
MTO_HAL()->dto_tx_retry_count += index;
MTO_HAL()->dto_tx_frag_count += (index+1);
}
else
{
MTO_HAL()->dto_tx_retry_count += 3;
MTO_HAL()->dto_tx_frag_count += 3;
}
}
}
else
{
MTO_HAL()->dto_tx_retry_count += index;
MTO_HAL()->dto_tx_frag_count += (index+1);
}
TotalTxPkt ++;
TotalTxPktRetry += (index+1);
PeriodTotalTxPkt ++;
PeriodTotalTxPktRetry += (index+1);
}
u8 MTO_GetTxFallbackRate(MTO_FUNC_INPUT)
{
return MTO_DATA_FALLBACK_RATE();
}
//===========================================================================
// MTO_TxFailed --
//
// Description:
// Failure of transmitting a packet indicates that certain MTO parmeters
// may need to be adjusted. This function is called when NIC just failed
// to transmit a packet or when MSDULifeTime expired.
//
// Arguments:
// Adapter - The pointer to the Miniport Adapter Context
//
// Return Value:
// None
//============================================================================
void MTO_TxFailed(MTO_FUNC_INPUT)
{
return;
}
int Divide(int a, int b)
{
if (b==0) b=1;
return a/b;
}