--- /dev/null
+/*
+** $Id: //Department/DaVinci/BRANCHES/MT6620_WIFI_DRIVER_V2_2/mgmt/rate.c#1 $
+*/
+
+/*! \file "rate.c"
+ \brief This file contains the transmission rate handling routines.
+
+ This file contains the transmission rate handling routines for setting up
+ ACK/CTS Rate, Highest Tx Rate, Lowest Tx Rate, Initial Tx Rate and do
+ conversion between Rate Set and Data Rates.
+*/
+
+/*******************************************************************************
+* Copyright (c) 2007 MediaTek Inc.
+*
+* All rights reserved. Copying, compilation, modification, distribution
+* or any other use whatsoever of this material is strictly prohibited
+* except in accordance with a Software License Agreement with
+* MediaTek Inc.
+********************************************************************************
+*/
+
+/*******************************************************************************
+* LEGAL DISCLAIMER
+*
+* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND
+* AGREES THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK
+* SOFTWARE") RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE
+* PROVIDED TO BUYER ON AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY
+* DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+* LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+* PARTICULAR PURPOSE OR NONINFRINGEMENT. NEITHER DOES MEDIATEK PROVIDE
+* ANY WARRANTY WHATSOEVER WITH RESPECT TO THE SOFTWARE OF ANY THIRD PARTY
+* WHICH MAY BE USED BY, INCORPORATED IN, OR SUPPLIED WITH THE MEDIATEK
+* SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY
+* WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE
+* FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S SPECIFICATION OR TO
+* CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
+*
+* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
+* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL
+* BE, AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT
+* ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY
+* BUYER TO MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
+*
+* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
+* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT
+* OF LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING
+* THEREOF AND RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN
+* FRANCISCO, CA, UNDER THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE
+* (ICC).
+********************************************************************************
+*/
+
+/*
+** $Log: rate.c $
+ *
+ * 03 18 2011 cp.wu
+ * [WCXRP00000577] [MT6620 Wi-Fi][Driver][FW] Create V2.0 branch for firmware and driver
+ * create V2.0 driver release based on label "MT6620_WIFI_DRIVER_V2_0_110318_1600" from main trunk
+ *
+ * 07 08 2010 cp.wu
+ *
+ * [WPD00003833] [MT6620 and MT5931] Driver migration - move to new repository.
+ *
+ * 06 08 2010 cp.wu
+ * [WPD00003833][MT6620 and MT5931] Driver migration
+ * add rate.c.
+ *
+ * 03 16 2010 kevin.huang
+ * [BORA00000663][WIFISYS][New Feature] AdHoc Mode Support
+ * Add AdHoc Mode
+ *
+ * 12 18 2009 cm.chang
+ * [BORA00000018]Integrate WIFI part into BORA for the 1st time
+ * .
+ *
+ * Nov 23 2009 mtk01461
+ * [BORA00000018] Integrate WIFI part into BORA for the 1st time
+ * Update comments
+ *
+ * Nov 16 2009 mtk01461
+ * [BORA00000018] Integrate WIFI part into BORA for the 1st time
+ * Fix DBGLOG
+ *
+ * Nov 5 2009 mtk01461
+ * [BORA00000018] Integrate WIFI part into BORA for the 1st time
+ *
+** \main\maintrunk.MT5921\12 2008-12-19 17:19:32 GMT mtk01461
+** Fix the problem that do not ASSERT the length of Supported Rate IE == 8
+** \main\maintrunk.MT5921\11 2008-12-01 18:17:42 GMT mtk01088
+** fixed the lint "possible using null pointer" warning
+** \main\maintrunk.MT5921\10 2008-08-20 00:16:36 GMT mtk01461
+** Update for Driver Review
+** \main\maintrunk.MT5921\9 2008-04-13 21:17:13 GMT mtk01461
+** Revise GEN Link Speed OID
+** \main\maintrunk.MT5921\8 2008-03-28 10:40:13 GMT mtk01461
+** Add rateGetRateSetFromDataRates() for set desired rate OID
+** \main\maintrunk.MT5921\7 2008-03-26 09:16:20 GMT mtk01461
+** Add adopt operational rate as ACK rate if BasicRateSet was not found
+** Add comments
+** \main\maintrunk.MT5921\6 2008-02-21 15:01:39 GMT mtk01461
+** Add initial rate according rx signal quality support
+** \main\maintrunk.MT5921\5 2008-01-07 15:06:44 GMT mtk01461
+** Fix typo of rate adaptation of CtrlResp Frame
+** \main\maintrunk.MT5921\4 2007-10-25 18:05:12 GMT mtk01461
+** Add VOIP SCAN Support & Refine Roaming
+*/
+
+/*******************************************************************************
+* C O M P I L E R F L A G S
+********************************************************************************
+*/
+
+/*******************************************************************************
+* E X T E R N A L R E F E R E N C E S
+********************************************************************************
+*/
+#include "precomp.h"
+
+/*******************************************************************************
+* C O N S T A N T S
+********************************************************************************
+*/
+/* The list of valid data rates. */
+const UINT_8 aucDataRate[] = {
+ RATE_1M, /* RATE_1M_INDEX = 0 */
+ RATE_2M, /* RATE_2M_INDEX */
+ RATE_5_5M, /* RATE_5_5M_INDEX */
+ RATE_11M, /* RATE_11M_INDEX */
+ RATE_22M, /* RATE_22M_INDEX */
+ RATE_33M, /* RATE_33M_INDEX */
+ RATE_6M, /* RATE_6M_INDEX */
+ RATE_9M, /* RATE_9M_INDEX */
+ RATE_12M, /* RATE_12M_INDEX */
+ RATE_18M, /* RATE_18M_INDEX */
+ RATE_24M, /* RATE_24M_INDEX */
+ RATE_36M, /* RATE_36M_INDEX */
+ RATE_48M, /* RATE_48M_INDEX */
+ RATE_54M, /* RATE_54M_INDEX */
+ RATE_HT_PHY /* RATE_HT_PHY_INDEX */
+};
+
+static const UINT_8 aucDefaultAckCtsRateIndex[RATE_NUM] = {
+ RATE_1M_INDEX, /* RATE_1M_INDEX = 0 */
+ RATE_2M_INDEX, /* RATE_2M_INDEX */
+ RATE_5_5M_INDEX, /* RATE_5_5M_INDEX */
+ RATE_11M_INDEX, /* RATE_11M_INDEX */
+ RATE_1M_INDEX, /* RATE_22M_INDEX - Not supported */
+ RATE_1M_INDEX, /* RATE_33M_INDEX - Not supported */
+ RATE_6M_INDEX, /* RATE_6M_INDEX */
+ RATE_6M_INDEX, /* RATE_9M_INDEX */
+ RATE_12M_INDEX, /* RATE_12M_INDEX */
+ RATE_12M_INDEX, /* RATE_18M_INDEX */
+ RATE_24M_INDEX, /* RATE_24M_INDEX */
+ RATE_24M_INDEX, /* RATE_36M_INDEX */
+ RATE_24M_INDEX, /* RATE_48M_INDEX */
+ RATE_24M_INDEX /* RATE_54M_INDEX */
+};
+
+const BOOLEAN afgIsOFDMRate[RATE_NUM] = {
+ FALSE, /* RATE_1M_INDEX = 0 */
+ FALSE, /* RATE_2M_INDEX */
+ FALSE, /* RATE_5_5M_INDEX */
+ FALSE, /* RATE_11M_INDEX */
+ FALSE, /* RATE_22M_INDEX - Not supported */
+ FALSE, /* RATE_33M_INDEX - Not supported */
+ TRUE, /* RATE_6M_INDEX */
+ TRUE, /* RATE_9M_INDEX */
+ TRUE, /* RATE_12M_INDEX */
+ TRUE, /* RATE_18M_INDEX */
+ TRUE, /* RATE_24M_INDEX */
+ TRUE, /* RATE_36M_INDEX */
+ TRUE, /* RATE_48M_INDEX */
+ TRUE /* RATE_54M_INDEX */
+};
+
+/*******************************************************************************
+* D A T A T Y P E S
+********************************************************************************
+*/
+
+/*******************************************************************************
+* P U B L I C D A T A
+********************************************************************************
+*/
+
+/*******************************************************************************
+* P R I V A T E D A T A
+********************************************************************************
+*/
+
+/*******************************************************************************
+* M A C R O S
+********************************************************************************
+*/
+
+/*******************************************************************************
+* F U N C T I O N D E C L A R A T I O N S
+********************************************************************************
+*/
+
+/*******************************************************************************
+* F U N C T I O N S
+********************************************************************************
+*/
+/*----------------------------------------------------------------------------*/
+/*!
+* @brief Convert the given Supported Rate & Extended Supported Rate IE to the
+* Operational Rate Set and Basic Rate Set, and also check if any Basic
+* Rate Code is unknown by driver.
+*
+* @param[in] prIeSupportedRate Pointer to the Supported Rate IE
+* @param[in] prIeExtSupportedRate Pointer to the Ext Supported Rate IE
+* @param[out] pu2OperationalRateSet Pointer to the Operational Rate Set
+* @param[out] pu2BSSBasicRateSet Pointer to the Basic Rate Set
+* @param[out] pfgIsUnknownBSSBasicRate Pointer to a Flag to indicate that Basic
+* Rate Set has unknown Rate Code
+*
+* \return (none)
+*/
+/*----------------------------------------------------------------------------*/
+VOID
+rateGetRateSetFromIEs (
+ IN P_IE_SUPPORTED_RATE_T prIeSupportedRate,
+ IN P_IE_EXT_SUPPORTED_RATE_T prIeExtSupportedRate,
+ OUT PUINT_16 pu2OperationalRateSet,
+ OUT PUINT_16 pu2BSSBasicRateSet,
+ OUT PBOOLEAN pfgIsUnknownBSSBasicRate
+ )
+{
+ UINT_16 u2OperationalRateSet = 0;
+ UINT_16 u2BSSBasicRateSet = 0;
+ BOOLEAN fgIsUnknownBSSBasicRate = FALSE;
+ UINT_8 ucRate;
+ UINT_32 i, j;
+
+
+ ASSERT(pu2OperationalRateSet);
+ ASSERT(pu2BSSBasicRateSet);
+ ASSERT(pfgIsUnknownBSSBasicRate);
+
+ if (prIeSupportedRate) {
+ /* NOTE(Kevin): Buffalo WHR-G54S's supported rate set IE exceed 8.
+ * IE_LEN(pucIE) == 12, "1(B), 2(B), 5.5(B), 6(B), 9(B), 11(B),
+ * 12(B), 18(B), 24(B), 36(B), 48(B), 54(B)"
+ */
+ //ASSERT(prIeSupportedRate->ucLength <= ELEM_MAX_LEN_SUP_RATES);
+ ASSERT(prIeSupportedRate->ucLength <= RATE_NUM);
+
+ for (i = 0; i < prIeSupportedRate->ucLength; i++) {
+ ucRate = prIeSupportedRate->aucSupportedRates[i] & RATE_MASK;
+
+ /* Search all valid data rates */
+ for (j = 0; j < sizeof(aucDataRate)/sizeof(UINT_8); j++) {
+ if (ucRate == aucDataRate[j]) {
+ u2OperationalRateSet |= BIT(j);
+
+ if (prIeSupportedRate->aucSupportedRates[i] & RATE_BASIC_BIT) {
+ u2BSSBasicRateSet |= BIT(j);
+ }
+
+ break;
+ }
+ }
+
+ if ((j == sizeof(aucDataRate)/sizeof(UINT_8)) &&
+ (prIeSupportedRate->aucSupportedRates[i] & RATE_BASIC_BIT)) {
+ fgIsUnknownBSSBasicRate = TRUE; /* A data rate not list in the aucDataRate[] */
+ }
+ }
+ }
+
+
+ if (prIeExtSupportedRate) {
+ //ASSERT(prIeExtSupportedRate->ucLength <= ELEM_MAX_LEN_EXTENDED_SUP_RATES);
+
+ for (i = 0; i < prIeExtSupportedRate->ucLength; i++) {
+ ucRate = prIeExtSupportedRate->aucExtSupportedRates[i] & RATE_MASK;
+
+ /* Search all valid data rates */
+ for (j = 0; j < sizeof(aucDataRate)/sizeof(UINT_8); j++) {
+ if (ucRate == aucDataRate[j]) {
+ u2OperationalRateSet |= BIT(j);
+
+ if (prIeExtSupportedRate->aucExtSupportedRates[i] & RATE_BASIC_BIT) {
+ u2BSSBasicRateSet |= BIT(j);
+ }
+
+ break;
+ }
+ }
+
+ if ((j == sizeof(aucDataRate)/sizeof(UINT_8)) &&
+ (prIeExtSupportedRate->aucExtSupportedRates[i] & RATE_BASIC_BIT)) {
+ fgIsUnknownBSSBasicRate = TRUE; /* A data rate not list in the aucDataRate[] */
+ }
+ }
+ }
+
+ *pu2OperationalRateSet = u2OperationalRateSet;
+ *pu2BSSBasicRateSet = u2BSSBasicRateSet;
+ *pfgIsUnknownBSSBasicRate = fgIsUnknownBSSBasicRate;
+
+ return;
+
+} /* end of rateGetRateSetFromIEs() */
+
+
+/*----------------------------------------------------------------------------*/
+/*!
+* @brief Convert the given Operational Rate Set & Basic Rate Set to the Rate Code
+* Format for used in (Ext)Supportec Rate IE.
+*
+* @param[in] u2OperationalRateSet Operational Rate Set
+* @param[in] u2BSSBasicRateSet Basic Rate Set
+* @param[out] pucDataRates Pointer to the Data Rate Buffer
+* @param[out] pucDataRatesLen Pointer to the Data Rate Buffer Length
+*
+* @return (none)
+*/
+/*----------------------------------------------------------------------------*/
+VOID
+rateGetDataRatesFromRateSet (
+ IN UINT_16 u2OperationalRateSet,
+ IN UINT_16 u2BSSBasicRateSet,
+ OUT PUINT_8 pucDataRates,
+ OUT PUINT_8 pucDataRatesLen
+ )
+{
+ UINT_32 i, j;
+
+
+ ASSERT(pucDataRates);
+ ASSERT(pucDataRatesLen);
+
+ ASSERT(u2BSSBasicRateSet == (u2OperationalRateSet & u2BSSBasicRateSet));
+
+ for (i = RATE_1M_INDEX, j = 0; i < RATE_NUM; i++) {
+ if (u2OperationalRateSet & BIT(i)) {
+
+ *(pucDataRates + j) = aucDataRate[i];
+
+ if (u2BSSBasicRateSet & BIT(i)) {
+ *(pucDataRates + j) |= RATE_BASIC_BIT;
+ }
+
+ j++;
+ }
+ }
+
+ *pucDataRatesLen = (UINT_8)j;
+
+ return;
+
+} /* end of rateGetDataRatesFromRateSet() */
+
+
+/*----------------------------------------------------------------------------*/
+/*!
+* \brief Get the highest rate from given Rate Set.
+*
+* \param[in] u2RateSet Rate Set
+* \param[out] pucHighestRateIndex Pointer to buffer of the Highest Rate Index
+*
+* \retval TRUE Highest Rate Index was found
+* \retval FALSE Highest Rate Index was not found
+*/
+/*----------------------------------------------------------------------------*/
+BOOLEAN
+rateGetHighestRateIndexFromRateSet (
+ IN UINT_16 u2RateSet,
+ OUT PUINT_8 pucHighestRateIndex
+ )
+{
+ INT_32 i;
+
+
+ ASSERT(pucHighestRateIndex);
+
+ for (i = RATE_54M_INDEX; i >= RATE_1M_INDEX; i--) {
+ if (u2RateSet & BIT(i)) {
+ *pucHighestRateIndex = (UINT_8)i;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+
+} /* end of rateGetHighestRateIndexFromRateSet() */
+
+
+/*----------------------------------------------------------------------------*/
+/*!
+* \brief Get the lowest rate from given Rate Set.
+*
+* \param[in] u2RateSet Rate Set
+* \param[out] pucLowestRateIndex Pointer to buffer of the Lowest Rate Index
+*
+* \retval TRUE Lowest Rate Index was found
+* \retval FALSE Lowest Rate Index was not found
+*/
+/*----------------------------------------------------------------------------*/
+BOOLEAN
+rateGetLowestRateIndexFromRateSet (
+ IN UINT_16 u2RateSet,
+ OUT PUINT_8 pucLowestRateIndex
+ )
+{
+ UINT_32 i;
+
+ ASSERT(pucLowestRateIndex);
+
+ for (i = RATE_1M_INDEX; i <= RATE_54M_INDEX; i++) {
+ if (u2RateSet & BIT(i)) {
+ *pucLowestRateIndex = (UINT_8)i;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+
+} /* end of rateGetLowestRateIndexFromRateSet() */
+
+
+#if 0 // NOTE(Kevin): For reference
+/*----------------------------------------------------------------------------*/
+/*!
+* \brief Convert the given Data Rates to the Rate Set.
+*
+* \param[in] pucDataRates Pointer to the Data Rates
+* \param[in] ucDataRatesLen Length of given Data Rates
+* \param[out] pu2RateSet Pointer to the Rate Set
+*
+* \return (none)
+*/
+/*----------------------------------------------------------------------------*/
+VOID
+rateGetRateSetFromDataRates (
+ IN PUINT_8 pucDataRates,
+ IN UINT_8 ucDataRatesLen,
+ OUT PUINT_16 pu2RateSet
+ )
+{
+ UINT_16 u2RateSet = 0;
+ UINT_8 ucRate;
+ UINT_32 i, j;
+
+
+ ASSERT(pucDataRates);
+ ASSERT(pu2RateSet);
+
+ if (pucDataRates) {
+ for (i = 0; i < ucDataRatesLen; i++) {
+ ucRate = pucDataRates[i] & RATE_MASK;
+
+ /* Search all valid data rates */
+ for (j = 0; j < sizeof(aucDataRate)/sizeof(UINT_8); j++) {
+ if (ucRate == aucDataRate[j]) {
+ u2RateSet |= BIT(j);
+ break;
+ }
+ }
+ }
+ }
+
+ *pu2RateSet = u2RateSet;
+
+ return;
+
+} /* end of rateGetRateSetFromDataRates() */
+
+
+/*----------------------------------------------------------------------------*/
+/*!
+* \brief Parse the Operational Rate Set and Basic Rate Set to get the corresponding
+* ACK/CTS(Respnose) TX Rates.
+*
+* \param[in] u2OperationalRateSet Operational Rate Set
+* \param[in] u2BSSBasicRateSet Basic Rate Set
+* \param[out] aucAckCtsRateIndex Pointer to the Ack/Cts Data Rate Buffer
+*
+* \return (none)
+*/
+/*----------------------------------------------------------------------------*/
+VOID
+rateSetAckCtsDataRatesFromRateSet (
+ IN UINT_16 u2OperationalRateSet,
+ IN UINT_16 u2BSSBasicRateSet,
+ IN OUT UINT_8 aucAckCtsRateIndex[]
+ )
+{
+ INT_32 i,j;
+
+
+ ASSERT(aucAckCtsRateIndex);
+ ASSERT(u2BSSBasicRateSet == (u2OperationalRateSet & u2BSSBasicRateSet));
+
+ /* Setup default ACK/CTS response rate */
+ kalMemCopy(aucAckCtsRateIndex, (PVOID)aucDefaultAckCtsRateIndex, sizeof(aucDefaultAckCtsRateIndex));
+
+
+ for (i = RATE_54M_INDEX; i >= RATE_1M_INDEX; i--) {
+ if (u2OperationalRateSet & BIT(i)) {
+ for (j = i; j >= RATE_1M_INDEX; j--) {
+ if (u2BSSBasicRateSet & BIT(j)) {
+ if ((afgIsOFDMRate[i] && afgIsOFDMRate[j]) || (!afgIsOFDMRate[i] && !afgIsOFDMRate[j])) // Reply ACK Frame at the same Modulation Scheme.
+ aucAckCtsRateIndex[i] = (UINT_8)j;
+ break;
+ }
+ }
+
+ /* NOTE(Kevin 2008/03/25): Following code is used for those AP which has
+ * NULL BasicRateSet.
+ * e.g. If input Operational Rate Set = [18M 12M 9M], Basic Rate Set = NULL.
+ * Originally we'll get Ack Rate for [18M 12M 9M] is [12M 12M "6M"].
+ * Now we'll get Ack Rate for [18M 12M 9M] is [12M 12M 9M],
+ * The Ack Rate for Tx Rates which are not list in Operational Rate Set is still
+ * use highest mandatory rate as default.
+ */
+ if (j < RATE_1M_INDEX) { /* The ACK/CTS rate was not found in BasicRateSet */
+ if (!(BIT(aucAckCtsRateIndex[i]) & u2OperationalRateSet)) {
+ aucAckCtsRateIndex[i] = (UINT_8)i;
+ }
+ }
+ }
+ }
+
+ return;
+
+} /* end of rateSetAckCtsDataRatesFromRateSet() */
+
+
+/*----------------------------------------------------------------------------*/
+/*!
+* \brief Get the proper initial rate from Rate Set according to given RCPI value
+*
+* \param[in] u2RateSet Rate Set
+* \param[in] rRcpi RCPI value from AP or Peer STA
+* \param[out] pucInitialRateIndex Pointer to buffer of the initial Rate Index
+*
+* \retval TRUE Initial Rate Index was found
+* \retval FALSE Initial Rate Index was not found
+*/
+/*----------------------------------------------------------------------------*/
+BOOLEAN
+rateGetBestInitialRateIndex (
+ IN UINT_16 u2RateSet,
+ IN RCPI rRcpi,
+ OUT PUINT_8 pucInitialRateIndex
+ )
+{
+ UINT_16 u2InitRateSet;
+ INT_32 i;
+
+
+ ASSERT(pucInitialRateIndex);
+
+ DBGLOG(MGT, TRACE, ("rRcpi = %d\n", rRcpi));
+
+ if (rRcpi >= RCPI_100) { /* Best Signal */
+ u2InitRateSet = INITIAL_RATE_SET(RCPI_100);
+ }
+ else if (rRcpi >= RCPI_80) { /* Better Signal */
+ u2InitRateSet = INITIAL_RATE_SET(RCPI_80);
+ }
+ else if (rRcpi >= RCPI_60) { /* Good Signal */
+ u2InitRateSet = INITIAL_RATE_SET(RCPI_60);
+ }
+ else { /* Worse Signal */
+ /* NOTE(Kevin): If return FALSE, we should assign the BSS Basic Rate Index
+ * (prBssInfo->ucBasicRateIndex) to the initial rate. It was determined in
+ * function - bssUpdateTxRateForControlFrame().
+ */
+ return FALSE;
+ }
+
+ u2RateSet &= u2InitRateSet;
+
+ for (i = RATE_54M_INDEX; i >= RATE_1M_INDEX; i--) {
+ if (u2RateSet & BIT(i)) {
+ *pucInitialRateIndex = (UINT_8)i;
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+
+} /* end of rateGetBestInitialRateIndex() */
+#endif
+
projects / firefly-linux-kernel-4.4.55.git / blobdiff