drivers/staging/rtl8723bs/hal/odm_NoiseMonitor.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /******************************************************************************
   3  *
   4  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   5  *
   6  ******************************************************************************/
   7
   8 #include "odm_precomp.h"
   9
  10 /*  This function is for inband noise test utility only */
  11 /*  To obtain the inband noise level(dbm), do the following. */
  12 /*  1. disable DIG and Power Saving */
  13 /*  2. Set initial gain = 0x1a */
  14 /*  3. Stop updating idle time pwer report (for driver read) */
  15 /* - 0x80c[25] */
  16
  17 #define Valid_Min                               -35
  18 #define Valid_Max                       10
  19 #define ValidCnt                                5
  20
  21 static s16 odm_InbandNoise_Monitor_NSeries(
  22         PDM_ODM_T pDM_Odm,
  23         u8 bPauseDIG,
  24         u8 IGIValue,
  25         u32 max_time
  26 )
  27 {
  28         u32 tmp4b;
  29         u8 max_rf_path = 0, rf_path;
  30         u8 reg_c50, reg_c58, valid_done = 0;
  31         struct noise_level noise_data;
  32         u32 start  = 0, func_start = 0, func_end = 0;
  33
  34         func_start = jiffies;
  35         pDM_Odm->noise_level.noise_all = 0;
  36
  37         if ((pDM_Odm->RFType == ODM_1T2R) || (pDM_Odm->RFType == ODM_2T2R))
  38                 max_rf_path = 2;
  39         else
  40                 max_rf_path = 1;
  41
  42         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_DebugControlInbandNoise_Nseries() ==>\n"));
  43
  44         memset(&noise_data, 0, sizeof(struct noise_level));
  45
  46         /*  */
  47         /*  Step 1. Disable DIG && Set initial gain. */
  48         /*  */
  49
  50         if (bPauseDIG)
  51                 odm_PauseDIG(pDM_Odm, ODM_PAUSE_DIG, IGIValue);
  52         /*  */
  53         /*  Step 2. Disable all power save for read registers */
  54         /*  */
  55         /* dcmd_DebugControlPowerSave(padapter, PSDisable); */
  56
  57         /*  */
  58         /*  Step 3. Get noise power level */
  59         /*  */
  60         start = jiffies;
  61         while (1) {
  62
  63                 /* Stop updating idle time pwer report (for driver read) */
  64                 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 1);
  65
  66                 /* Read Noise Floor Report */
  67                 tmp4b = PHY_QueryBBReg(pDM_Odm->Adapter, 0x8f8, bMaskDWord);
  68                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("Noise Floor Report (0x8f8) = 0x%08x\n", tmp4b));
  69
  70                 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0, TestInitialGain); */
  71                 /* if (max_rf_path == 2) */
  72                 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0, TestInitialGain); */
  73
  74                 /* update idle time pwer report per 5us */
  75                 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 0);
  76
  77                 noise_data.value[ODM_RF_PATH_A] = (u8)(tmp4b&0xff);
  78                 noise_data.value[ODM_RF_PATH_B]  = (u8)((tmp4b&0xff00)>>8);
  79
  80                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("value_a = 0x%x(%d), value_b = 0x%x(%d)\n",
  81                         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]));
  82
  83                 for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++) {
  84                         noise_data.sval[rf_path] = (s8)noise_data.value[rf_path];
  85                         noise_data.sval[rf_path] /= 2;
  86                 }
  87
  88
  89                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("sval_a = %d, sval_b = %d\n",
  90                         noise_data.sval[ODM_RF_PATH_A], noise_data.sval[ODM_RF_PATH_B]));
  91                 /* mdelay(10); */
  92                 /* msleep(10); */
  93
  94                 for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++) {
  95                         if ((noise_data.valid_cnt[rf_path] < ValidCnt) && (noise_data.sval[rf_path] < Valid_Max && noise_data.sval[rf_path] >= Valid_Min)) {
  96                                 noise_data.valid_cnt[rf_path]++;
  97                                 noise_data.sum[rf_path] += noise_data.sval[rf_path];
  98                                 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]));
  99                                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("Sum of sval = %d,\n", noise_data.sum[rf_path]));
 100                                 if (noise_data.valid_cnt[rf_path] == ValidCnt) {
 101                                         valid_done++;
 102                                         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]));
 103                                 }
 104
 105                         }
 106
 107                 }
 108
 109                 /* printk("####### valid_done:%d #############\n", valid_done); */
 110                 if ((valid_done == max_rf_path) || (jiffies_to_msecs(jiffies - start) > max_time)) {
 111                         for (rf_path = ODM_RF_PATH_A; rf_path < max_rf_path; rf_path++) {
 112                                 /* printk("%s PATH_%d - sum = %d, valid_cnt = %d\n", __func__, rf_path, noise_data.sum[rf_path], noise_data.valid_cnt[rf_path]); */
 113                                 if (noise_data.valid_cnt[rf_path])
 114                                         noise_data.sum[rf_path] /= noise_data.valid_cnt[rf_path];
 115                                 else
 116                                         noise_data.sum[rf_path]  = 0;
 117                         }
 118                         break;
 119                 }
 120         }
 121         reg_c50 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0);
 122         reg_c50 &= ~BIT7;
 123         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("0x%x = 0x%02x(%d)\n", rOFDM0_XAAGCCore1, reg_c50, reg_c50));
 124         pDM_Odm->noise_level.noise[ODM_RF_PATH_A] = -110 + reg_c50 + noise_data.sum[ODM_RF_PATH_A];
 125         pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[ODM_RF_PATH_A];
 126
 127         if (max_rf_path == 2) {
 128                 reg_c58 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0);
 129                 reg_c58 &= ~BIT7;
 130                 ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("0x%x = 0x%02x(%d)\n", rOFDM0_XBAGCCore1, reg_c58, reg_c58));
 131                 pDM_Odm->noise_level.noise[ODM_RF_PATH_B] = -110 + reg_c58 + noise_data.sum[ODM_RF_PATH_B];
 132                 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[ODM_RF_PATH_B];
 133         }
 134         pDM_Odm->noise_level.noise_all /= max_rf_path;
 135
 136         ODM_RT_TRACE(
 137                 pDM_Odm,
 138                 ODM_COMP_COMMON,
 139                 ODM_DBG_LOUD,
 140                 (
 141                         "noise_a = %d, noise_b = %d\n",
 142                         pDM_Odm->noise_level.noise[ODM_RF_PATH_A],
 143                         pDM_Odm->noise_level.noise[ODM_RF_PATH_B]
 144                 )
 145         );
 146
 147         /*  */
 148         /*  Step 4. Recover the Dig */
 149         /*  */
 150         if (bPauseDIG)
 151                 odm_PauseDIG(pDM_Odm, ODM_RESUME_DIG, IGIValue);
 152
 153         func_end = jiffies_to_msecs(jiffies - func_start);
 154         /* printk("%s noise_a = %d, noise_b = %d noise_all:%d (%d ms)\n", __func__, */
 155         /* pDM_Odm->noise_level.noise[ODM_RF_PATH_A], */
 156         /* pDM_Odm->noise_level.noise[ODM_RF_PATH_B], */
 157         /* pDM_Odm->noise_level.noise_all, func_end); */
 158
 159         ODM_RT_TRACE(pDM_Odm, ODM_COMP_COMMON, ODM_DBG_LOUD, ("odm_DebugControlInbandNoise_Nseries() <==\n"));
 160         return pDM_Odm->noise_level.noise_all;
 161
 162 }
 163
 164 s16 ODM_InbandNoise_Monitor(void *pDM_VOID, u8 bPauseDIG, u8 IGIValue, u32 max_time)
 165 {
 166         return odm_InbandNoise_Monitor_NSeries(pDM_VOID, bPauseDIG, IGIValue, max_time);
 167 }