drivers/misc/mediatek/connectivity/combo/drv_wlan/mt6630/wlan/nic/nic_rate.c

   1 /*
   2 **
   3 */
   4
   5 /*! \file   "nic_rate.c"
   6     \brief  This file contains the transmission rate handling routines.
   7
   8     This file contains the transmission rate handling routines for setting up
   9     ACK/CTS Rate, Highest Tx Rate, Lowest Tx Rate, Initial Tx Rate and do
  10     conversion between Rate Set and Data Rates.
  11 */
  12
  13
  14
  15 /*
  16 ** $Log: rate.c $
  17 **
  18 ** 07 12 2013 terry.wu
  19 ** [BORA00002207] [MT6630 Wi-Fi] TXM & MQM Implementation
  20 ** 1. Update VHT IE composing function
  21 ** 2. disable bow
  22 ** 3. Exchange bss/sta rec update sequence for temp solution
  23 **
  24 ** 11 06 2012 eason.tsai
  25 ** [BORA00002255] [MT6630 Wi-Fi][Driver] develop
  26 ** .
  27 **
  28 ** 09 17 2012 cm.chang
  29 ** [BORA00002149] [MT6630 Wi-Fi] Initial software development
  30 ** Duplicate source from MT6620 v2.3 driver branch
  31 ** (Davinci label: MT6620_WIFI_Driver_V2_3_120913_1942_As_MT6630_Base)
  32  *
  33  * 07 08 2010 cp.wu
  34  *
  35  * [WPD00003833] [MT6620 and MT5931] Driver migration - move to new repository.
  36  *
  37  * 06 08 2010 cp.wu
  38  * [WPD00003833][MT6620 and MT5931] Driver migration
  39  * add rate.c.
  40  *
  41  * 03 16 2010 kevin.huang
  42  * [BORA00000663][WIFISYS][New Feature] AdHoc Mode Support
  43  * Add AdHoc Mode
  44  *
  45  * 12 18 2009 cm.chang
  46  * [BORA00000018]Integrate WIFI part into BORA for the 1st time
  47  * .
  48  *
  49  * Nov 23 2009 mtk01461
  50  * [BORA00000018] Integrate WIFI part into BORA for the 1st time
  51  * Update comments
  52  *
  53  * Nov 16 2009 mtk01461
  54  * [BORA00000018] Integrate WIFI part into BORA for the 1st time
  55  * Fix DBGLOG
  56  *
  57  * Nov 5 2009 mtk01461
  58  * [BORA00000018] Integrate WIFI part into BORA for the 1st time
  59  *
  60 **  \main\maintrunk.MT5921\12 2008-12-19 17:19:32 GMT mtk01461
  61 **  Fix the problem that do not ASSERT the length of Supported Rate IE == 8
  62 **  \main\maintrunk.MT5921\11 2008-12-01 18:17:42 GMT mtk01088
  63 **  fixed the lint "possible using null pointer" warning
  64 **  \main\maintrunk.MT5921\10 2008-08-20 00:16:36 GMT mtk01461
  65 **  Update for Driver Review
  66 **  \main\maintrunk.MT5921\9 2008-04-13 21:17:13 GMT mtk01461
  67 **  Revise GEN Link Speed OID
  68 **  \main\maintrunk.MT5921\8 2008-03-28 10:40:13 GMT mtk01461
  69 **  Add rateGetRateSetFromDataRates() for set desired rate OID
  70 **  \main\maintrunk.MT5921\7 2008-03-26 09:16:20 GMT mtk01461
  71 **  Add adopt operational rate as ACK rate if BasicRateSet was not found
  72 **  Add comments
  73 **  \main\maintrunk.MT5921\6 2008-02-21 15:01:39 GMT mtk01461
  74 **  Add initial rate according rx signal quality support
  75 **  \main\maintrunk.MT5921\5 2008-01-07 15:06:44 GMT mtk01461
  76 **  Fix typo of rate adaptation of CtrlResp Frame
  77 **  \main\maintrunk.MT5921\4 2007-10-25 18:05:12 GMT mtk01461
  78 **  Add VOIP SCAN Support  & Refine Roaming
  79 */
  80
  81 /*******************************************************************************
  82 *                         C O M P I L E R   F L A G S
  83 ********************************************************************************
  84 */
  85
  86 /*******************************************************************************
  87 *                    E X T E R N A L   R E F E R E N C E S
  88 ********************************************************************************
  89 */
  90 #include "precomp.h"
  91
  92 /*******************************************************************************
  93 *                              C O N S T A N T S
  94 ********************************************************************************
  95 */
  96
  97 const UINT_16 au2RateCCKLong[CCK_RATE_NUM] = {
  98         RATE_CCK_1M_LONG,       /* RATE_1M_INDEX = 0 */
  99         RATE_CCK_2M_LONG,       /* RATE_2M_INDEX */
 100         RATE_CCK_5_5M_LONG,     /* RATE_5_5M_INDEX */
 101         RATE_CCK_11M_LONG       /* RATE_11M_INDEX */
 102 };
 103
 104 const UINT_16 au2RateCCKShort[CCK_RATE_NUM] = {
 105         RATE_CCK_1M_LONG,       /* RATE_1M_INDEX = 0 */
 106         RATE_CCK_2M_SHORT,      /* RATE_2M_INDEX */
 107         RATE_CCK_5_5M_SHORT,    /* RATE_5_5M_INDEX */
 108         RATE_CCK_11M_SHORT      /* RATE_11M_INDEX */
 109 };
 110
 111 const UINT_16 au2RateOFDM[OFDM_RATE_NUM] = {
 112         RATE_OFDM_6M,           /* RATE_6M_INDEX */
 113         RATE_OFDM_9M,           /* RATE_9M_INDEX */
 114         RATE_OFDM_12M,          /* RATE_12M_INDEX */
 115         RATE_OFDM_18M,          /* RATE_18M_INDEX */
 116         RATE_OFDM_24M,          /* RATE_24M_INDEX */
 117         RATE_OFDM_36M,          /* RATE_36M_INDEX */
 118         RATE_OFDM_48M,          /* RATE_48M_INDEX */
 119         RATE_OFDM_54M           /* RATE_54M_INDEX */
 120 };
 121
 122
 123 const UINT_16 au2RateHTMixed[HT_RATE_NUM] = {
 124         RATE_MM_MCS_32,         /* RATE_MCS32_INDEX, */
 125         RATE_MM_MCS_0,          /* RATE_MCS0_INDEX, */
 126         RATE_MM_MCS_1,          /* RATE_MCS1_INDEX, */
 127         RATE_MM_MCS_2,          /* RATE_MCS2_INDEX, */
 128         RATE_MM_MCS_3,          /* RATE_MCS3_INDEX, */
 129         RATE_MM_MCS_4,          /* RATE_MCS4_INDEX, */
 130         RATE_MM_MCS_5,          /* RATE_MCS5_INDEX, */
 131         RATE_MM_MCS_6,          /* RATE_MCS6_INDEX, */
 132         RATE_MM_MCS_7           /* RATE_MCS7_INDEX, */
 133 };
 134
 135
 136 const UINT_16 au2RateHTGreenField[HT_RATE_NUM] = {
 137         RATE_GF_MCS_32,         /* RATE_MCS32_INDEX, */
 138         RATE_GF_MCS_0,          /* RATE_MCS0_INDEX, */
 139         RATE_GF_MCS_1,          /* RATE_MCS1_INDEX, */
 140         RATE_GF_MCS_2,          /* RATE_MCS2_INDEX, */
 141         RATE_GF_MCS_3,          /* RATE_MCS3_INDEX, */
 142         RATE_GF_MCS_4,          /* RATE_MCS4_INDEX, */
 143         RATE_GF_MCS_5,          /* RATE_MCS5_INDEX, */
 144         RATE_GF_MCS_6,          /* RATE_MCS6_INDEX, */
 145         RATE_GF_MCS_7,          /* RATE_MCS7_INDEX, */
 146 };
 147
 148
 149 const UINT_16 au2RateVHT[VHT_RATE_NUM] = {
 150         RATE_VHT_MCS_0,         /* RATE_MCS0_INDEX, */
 151         RATE_VHT_MCS_1,         /* RATE_MCS1_INDEX, */
 152         RATE_VHT_MCS_2,         /* RATE_MCS2_INDEX, */
 153         RATE_VHT_MCS_3,         /* RATE_MCS3_INDEX, */
 154         RATE_VHT_MCS_4,         /* RATE_MCS4_INDEX, */
 155         RATE_VHT_MCS_5,         /* RATE_MCS5_INDEX, */
 156         RATE_VHT_MCS_6,         /* RATE_MCS6_INDEX, */
 157         RATE_VHT_MCS_7,         /* RATE_MCS7_INDEX, */
 158         RATE_VHT_MCS_8,         /* RATE_MCS8_INDEX, */
 159         RATE_VHT_MCS_9          /* RATE_MCS9_INDEX, */
 160 };
 161
 162 /*******************************************************************************
 163 *                             D A T A   T Y P E S
 164 ********************************************************************************
 165 */
 166
 167 /*******************************************************************************
 168 *                            P U B L I C   D A T A
 169 ********************************************************************************
 170 */
 171
 172 /*******************************************************************************
 173 *                           P R I V A T E   D A T A
 174 ********************************************************************************
 175 */
 176
 177 /*******************************************************************************
 178 *                                 M A C R O S
 179 ********************************************************************************
 180 */
 181
 182 /*******************************************************************************
 183 *                   F U N C T I O N   D E C L A R A T I O N S
 184 ********************************************************************************
 185 */
 186
 187 /*******************************************************************************
 188 *                              F U N C T I O N S
 189 ********************************************************************************
 190 */
 191
 192 WLAN_STATUS
 193 nicRateIndex2RateCode(IN UINT_8 ucPreambleOption, IN UINT_8 ucRateIndex, OUT PUINT_16 pu2RateCode)
 194 {
 195         switch (ucPreambleOption) {
 196         case PREAMBLE_DEFAULT_LONG_NONE:
 197                 if (ucRateIndex >= CCK_RATE_NUM) {
 198                         return WLAN_STATUS_INVALID_DATA;
 199                 }
 200                 *pu2RateCode = au2RateCCKLong[ucRateIndex];
 201                 break;
 202
 203         case PREAMBLE_OPTION_SHORT:
 204                 if (ucRateIndex >= CCK_RATE_NUM) {
 205                         return WLAN_STATUS_INVALID_DATA;
 206                 }
 207                 *pu2RateCode = au2RateCCKShort[ucRateIndex];
 208                 break;
 209
 210         case PREAMBLE_OFDM_MODE:
 211                 if (ucRateIndex >= OFDM_RATE_NUM) {
 212                         return WLAN_STATUS_INVALID_DATA;
 213                 }
 214                 *pu2RateCode = au2RateOFDM[ucRateIndex];
 215                 break;
 216
 217         case PREAMBLE_HT_MIXED_MODE:
 218                 if (ucRateIndex >= HT_RATE_NUM) {
 219                         return WLAN_STATUS_INVALID_DATA;
 220                 }
 221                 *pu2RateCode = au2RateHTMixed[ucRateIndex];
 222                 break;
 223
 224         case PREAMBLE_HT_GREEN_FIELD:
 225                 if (ucRateIndex >= HT_RATE_NUM) {
 226                         return WLAN_STATUS_INVALID_DATA;
 227                 }
 228                 *pu2RateCode = au2RateHTGreenField[ucRateIndex];
 229                 break;
 230
 231         case PREAMBLE_VHT_FIELD:
 232                 if (ucRateIndex >= VHT_RATE_NUM) {
 233                         return WLAN_STATUS_INVALID_DATA;
 234                 }
 235                 *pu2RateCode = au2RateVHT[ucRateIndex];
 236                 break;
 237
 238         default:
 239                 return WLAN_STATUS_INVALID_DATA;
 240         }
 241
 242         return WLAN_STATUS_SUCCESS;
 243 }