drivers/staging/rtl8723bs/hal/odm_NoiseMonitor.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   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.
   8  *
   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
  12  * more details.
  13  *
  14  ******************************************************************************/
  15
  16 #include "odm_precomp.h"
  17
  18 /*  This function is for inband noise test utility only */
  19 /*  To obtain the inband noise level(dbm), do the following. */
  20 /*  1. disable DIG and Power Saving */
  21 /*  2. Set initial gain = 0x1a */
  22 /*  3. Stop updating idle time pwer report (for driver read) */
  23 /*      - 0x80c[25] */
  24
  25 #define Valid_Min                               -35
  26 #define Valid_Max                       10
  27 #define ValidCnt                                5
  28
  29 static s16 odm_InbandNoise_Monitor_NSeries(PDM_ODM_T    pDM_Odm, u8 bPauseDIG, u8 IGIValue, u32 max_time)
  30 {
  31         u32                     tmp4b;
  32         u8              max_rf_path = 0, rf_path;
  33         u8              reg_c50, reg_c58, valid_done = 0;
  34         struct noise_level              noise_data;
  35         u32 start  = 0,         func_start = 0, func_end = 0;
  36
  37         func_start = jiffies;
  38         pDM_Odm->noise_level.noise_all = 0;
  39
  40         if ((pDM_Odm->RFType == ODM_1T2R) ||(pDM_Odm->RFType == ODM_2T2R))
  41                 max_rf_path = 2;
  42         else
  43                 max_rf_path = 1;
  44
  45         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_DebugControlInbandNoise_Nseries() ==>\n"));
  46
  47         memset(&noise_data, 0, sizeof(struct noise_level));
  48
  49         /*  */
  50         /*  Step 1. Disable DIG && Set initial gain. */
  51         /*  */
  52
  53         if (bPauseDIG)
  54         {
  55                 odm_PauseDIG(pDM_Odm, ODM_PAUSE_DIG, IGIValue);
  56         }
  57         /*  */
  58         /*  Step 2. Disable all power save for read registers */
  59         /*  */
  60         /* dcmd_DebugControlPowerSave(padapter, PSDisable); */
  61
  62         /*  */
  63         /*  Step 3. Get noise power level */
  64         /*  */
  65         start = jiffies;
  66         while (1)
  67         {
  68
  69                 /* Stop updating idle time pwer report (for driver read) */
  70                 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 1);
  71
  72                 /* Read Noise Floor Report */
  73                 tmp4b = PHY_QueryBBReg(pDM_Odm->Adapter, 0x8f8, bMaskDWord);
  74                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("Noise Floor Report (0x8f8) = 0x%08x\n", tmp4b));
  75
  76                 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0, TestInitialGain); */
  77                 /* if (max_rf_path == 2) */
  78                 /*      PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0, TestInitialGain); */
  79
  80                 /* update idle time pwer report per 5us */
  81                 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 0);
  82
  83                 noise_data.value[ODM_RF_PATH_A] = (u8)(tmp4b&0xff);
  84                 noise_data.value[ODM_RF_PATH_B]  = (u8)((tmp4b&0xff00)>>8);
  85
  86                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("value_a = 0x%x(%d), value_b = 0x%x(%d)\n",
  87                         noise_data.value[ODM_RF_PATH_A], noise_data.value[ODM_RF_PATH_A], noise_data.value[ODM_RF_PATH_B], noise_data.value[ODM_RF_PATH_B]));
  88
  89                  for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++)
  90                  {
  91                         noise_data.sval[rf_path] = (s8)noise_data.value[rf_path];
  92                         noise_data.sval[rf_path] /= 2;
  93                  }
  94
  95
  96                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("sval_a = %d, sval_b = %d\n",
  97                         noise_data.sval[ODM_RF_PATH_A], noise_data.sval[ODM_RF_PATH_B]));
  98                 /* mdelay(10); */
  99                 /* msleep(10); */
 100
 101                 for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++)
 102                 {
 103                         if ((noise_data.valid_cnt[rf_path] < ValidCnt) && (noise_data.sval[rf_path] < Valid_Max && noise_data.sval[rf_path] >= Valid_Min))
 104                         {
 105                                 noise_data.valid_cnt[rf_path]++;
 106                                 noise_data.sum[rf_path] += noise_data.sval[rf_path];
 107                                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("RF_Path:%d Valid sval = %d\n", rf_path, noise_data.sval[rf_path]));
 108                                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("Sum of sval = %d,\n", noise_data.sum[rf_path]));
 109                                 if (noise_data.valid_cnt[rf_path] == ValidCnt)
 110                                 {
 111                                         valid_done++;
 112                                         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("After divided, RF_Path:%d , sum = %d\n", rf_path, noise_data.sum[rf_path]));
 113                                 }
 114
 115                         }
 116
 117                 }
 118
 119                 /* printk("####### valid_done:%d #############\n", valid_done); */
 120                 if ((valid_done ==max_rf_path) || (jiffies_to_msecs(jiffies - start) > max_time))
 121                 {
 122                         for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++)
 123                         {
 124                                 /* printk("%s PATH_%d - sum = %d, valid_cnt = %d\n", __func__, rf_path, noise_data.sum[rf_path], noise_data.valid_cnt[rf_path]); */
 125                                 if (noise_data.valid_cnt[rf_path])
 126                                         noise_data.sum[rf_path] /= noise_data.valid_cnt[rf_path];
 127                                 else
 128                                         noise_data.sum[rf_path]  = 0;
 129                         }
 130                         break;
 131                 }
 132         }
 133         reg_c50 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0);
 134         reg_c50 &= ~BIT7;
 135         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("0x%x = 0x%02x(%d)\n", rOFDM0_XAAGCCore1, reg_c50, reg_c50));
 136         pDM_Odm->noise_level.noise[ODM_RF_PATH_A] = -110 + reg_c50 + noise_data.sum[ODM_RF_PATH_A];
 137         pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[ODM_RF_PATH_A];
 138
 139         if (max_rf_path == 2) {
 140                 reg_c58 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0);
 141                 reg_c58 &= ~BIT7;
 142                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("0x%x = 0x%02x(%d)\n", rOFDM0_XBAGCCore1, reg_c58, reg_c58));
 143                 pDM_Odm->noise_level.noise[ODM_RF_PATH_B] = -110 + reg_c58 + noise_data.sum[ODM_RF_PATH_B];
 144                 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[ODM_RF_PATH_B];
 145         }
 146         pDM_Odm->noise_level.noise_all /= max_rf_path;
 147
 148         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("noise_a = %d, noise_b = %d\n",
 149                 pDM_Odm->noise_level.noise[ODM_RF_PATH_A],
 150                 pDM_Odm->noise_level.noise[ODM_RF_PATH_B]));
 151
 152         /*  */
 153         /*  Step 4. Recover the Dig */
 154         /*  */
 155         if (bPauseDIG)
 156         {
 157                 odm_PauseDIG(pDM_Odm, ODM_RESUME_DIG, IGIValue);
 158         }
 159         func_end = jiffies_to_msecs(jiffies - func_start) ;
 160         /* printk("%s noise_a = %d, noise_b = %d noise_all:%d (%d ms)\n", __func__, */
 161         /*      pDM_Odm->noise_level.noise[ODM_RF_PATH_A], */
 162         /*      pDM_Odm->noise_level.noise[ODM_RF_PATH_B], */
 163         /*      pDM_Odm->noise_level.noise_all, func_end); */
 164
 165         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_DebugControlInbandNoise_Nseries() <==\n"));
 166         return pDM_Odm->noise_level.noise_all;
 167
 168 }
 169 s16 ODM_InbandNoise_Monitor(void *pDM_VOID, u8 bPauseDIG, u8 IGIValue, u32 max_time)
 170 {
 171         return odm_InbandNoise_Monitor_NSeries(pDM_VOID, bPauseDIG, IGIValue, max_time);
 172 }