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(
  30         PDM_ODM_T pDM_Odm,
  31         u8 bPauseDIG,
  32         u8 IGIValue,
  33         u32 max_time
  34 )
  35 {
  36         u32 tmp4b;
  37         u8 max_rf_path = 0, rf_path;
  38         u8 reg_c50, reg_c58, valid_done = 0;
  39         struct noise_level noise_data;
  40         u32 start  = 0, func_start = 0, func_end = 0;
  41
  42         func_start = jiffies;
  43         pDM_Odm->noise_level.noise_all = 0;
  44
  45         if ((pDM_Odm->RFType == ODM_1T2R) || (pDM_Odm->RFType == ODM_2T2R))
  46                 max_rf_path = 2;
  47         else
  48                 max_rf_path = 1;
  49
  50         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_DebugControlInbandNoise_Nseries() ==>\n"));
  51
  52         memset(&noise_data, 0, sizeof(struct noise_level));
  53
  54         /*  */
  55         /*  Step 1. Disable DIG && Set initial gain. */
  56         /*  */
  57
  58         if (bPauseDIG)
  59                 odm_PauseDIG(pDM_Odm, ODM_PAUSE_DIG, IGIValue);
  60         /*  */
  61         /*  Step 2. Disable all power save for read registers */
  62         /*  */
  63         /* dcmd_DebugControlPowerSave(padapter, PSDisable); */
  64
  65         /*  */
  66         /*  Step 3. Get noise power level */
  67         /*  */
  68         start = jiffies;
  69         while (1) {
  70
  71                 /* Stop updating idle time pwer report (for driver read) */
  72                 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 1);
  73
  74                 /* Read Noise Floor Report */
  75                 tmp4b = PHY_QueryBBReg(pDM_Odm->Adapter, 0x8f8, bMaskDWord);
  76                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("Noise Floor Report (0x8f8) = 0x%08x\n", tmp4b));
  77
  78                 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0, TestInitialGain); */
  79                 /* if (max_rf_path == 2) */
  80                 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0, TestInitialGain); */
  81
  82                 /* update idle time pwer report per 5us */
  83                 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 0);
  84
  85                 noise_data.value[ODM_RF_PATH_A] = (u8)(tmp4b&0xff);
  86                 noise_data.value[ODM_RF_PATH_B]  = (u8)((tmp4b&0xff00)>>8);
  87
  88                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("value_a = 0x%x(%d), value_b = 0x%x(%d)\n",
  89                         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]));
  90
  91                 for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++) {
  92                         noise_data.sval[rf_path] = (s8)noise_data.value[rf_path];
  93                         noise_data.sval[rf_path] /= 2;
  94                 }
  95
  96
  97                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("sval_a = %d, sval_b = %d\n",
  98                         noise_data.sval[ODM_RF_PATH_A], noise_data.sval[ODM_RF_PATH_B]));
  99                 /* mdelay(10); */
 100                 /* msleep(10); */
 101
 102                 for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++) {
 103                         if ((noise_data.valid_cnt[rf_path] < ValidCnt) && (noise_data.sval[rf_path] < Valid_Max && noise_data.sval[rf_path] >= Valid_Min)) {
 104                                 noise_data.valid_cnt[rf_path]++;
 105                                 noise_data.sum[rf_path] += noise_data.sval[rf_path];
 106                                 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]));
 107                                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("Sum of sval = %d,\n", noise_data.sum[rf_path]));
 108                                 if (noise_data.valid_cnt[rf_path] == ValidCnt) {
 109                                         valid_done++;
 110                                         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]));
 111                                 }
 112
 113                         }
 114
 115                 }
 116
 117                 /* printk("####### valid_done:%d #############\n", valid_done); */
 118                 if ((valid_done == max_rf_path) || (jiffies_to_msecs(jiffies - start) > max_time)) {
 119                         for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++) {
 120                                 /* printk("%s PATH_%d - sum = %d, valid_cnt = %d\n", __func__, rf_path, noise_data.sum[rf_path], noise_data.valid_cnt[rf_path]); */
 121                                 if (noise_data.valid_cnt[rf_path])
 122                                         noise_data.sum[rf_path] /= noise_data.valid_cnt[rf_path];
 123                                 else
 124                                         noise_data.sum[rf_path]  = 0;
 125                         }
 126                         break;
 127                 }
 128         }
 129         reg_c50 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0);
 130         reg_c50 &= ~BIT7;
 131         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("0x%x = 0x%02x(%d)\n", rOFDM0_XAAGCCore1, reg_c50, reg_c50));
 132         pDM_Odm->noise_level.noise[ODM_RF_PATH_A] = -110 + reg_c50 + noise_data.sum[ODM_RF_PATH_A];
 133         pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[ODM_RF_PATH_A];
 134
 135         if (max_rf_path == 2) {
 136                 reg_c58 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0);
 137                 reg_c58 &= ~BIT7;
 138                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("0x%x = 0x%02x(%d)\n", rOFDM0_XBAGCCore1, reg_c58, reg_c58));
 139                 pDM_Odm->noise_level.noise[ODM_RF_PATH_B] = -110 + reg_c58 + noise_data.sum[ODM_RF_PATH_B];
 140                 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[ODM_RF_PATH_B];
 141         }
 142         pDM_Odm->noise_level.noise_all /= max_rf_path;
 143
 144         ODM_RT_TRACE(
 145                 pDM_Odm,
 146                 ODM_COMP_COMMON,
 147                 ODM_DBG_LOUD,
 148                 (
 149                         "noise_a = %d, noise_b = %d\n",
 150                         pDM_Odm->noise_level.noise[ODM_RF_PATH_A],
 151                         pDM_Odm->noise_level.noise[ODM_RF_PATH_B]
 152                 )
 153         );
 154
 155         /*  */
 156         /*  Step 4. Recover the Dig */
 157         /*  */
 158         if (bPauseDIG)
 159                 odm_PauseDIG(pDM_Odm, ODM_RESUME_DIG, IGIValue);
 160
 161         func_end = jiffies_to_msecs(jiffies - func_start);
 162         /* printk("%s noise_a = %d, noise_b = %d noise_all:%d (%d ms)\n", __func__, */
 163         /* pDM_Odm->noise_level.noise[ODM_RF_PATH_A], */
 164         /* pDM_Odm->noise_level.noise[ODM_RF_PATH_B], */
 165         /* pDM_Odm->noise_level.noise_all, func_end); */
 166
 167         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_DebugControlInbandNoise_Nseries() <==\n"));
 168         return pDM_Odm->noise_level.noise_all;
 169
 170 }
 171
 172 s16 ODM_InbandNoise_Monitor(void *pDM_VOID, u8 bPauseDIG, u8 IGIValue, u32 max_time)
 173 {
 174         return odm_InbandNoise_Monitor_NSeries(pDM_VOID, bPauseDIG, IGIValue, max_time);
 175 }