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
odm_InbandNoise_Monitor_NSeries(struct dm_odm_t * pDM_Odm,u8 bPauseDIG,u8 IGIValue,u32 max_time)21 static s16 odm_InbandNoise_Monitor_NSeries(
22 struct dm_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;
33
34 pDM_Odm->noise_level.noise_all = 0;
35
36 max_rf_path = 1;
37
38 memset(&noise_data, 0, sizeof(struct noise_level));
39
40 /* */
41 /* Step 1. Disable DIG && Set initial gain. */
42 /* */
43
44 if (bPauseDIG)
45 odm_PauseDIG(pDM_Odm, ODM_PAUSE_DIG, IGIValue);
46 /* */
47 /* Step 2. Disable all power save for read registers */
48 /* */
49 /* dcmd_DebugControlPowerSave(padapter, PSDisable); */
50
51 /* */
52 /* Step 3. Get noise power level */
53 /* */
54 start = jiffies;
55 while (1) {
56
57 /* Stop updating idle time pwer report (for driver read) */
58 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 1);
59
60 /* Read Noise Floor Report */
61 tmp4b = PHY_QueryBBReg(pDM_Odm->Adapter, 0x8f8, bMaskDWord);
62
63 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0, TestInitialGain); */
64 /* if (max_rf_path == 2) */
65 /* PHY_SetBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0, TestInitialGain); */
66
67 /* update idle time pwer report per 5us */
68 PHY_SetBBReg(pDM_Odm->Adapter, rFPGA0_TxGainStage, BIT25, 0);
69
70 noise_data.value[RF_PATH_A] = (u8)(tmp4b&0xff);
71 noise_data.value[RF_PATH_B] = (u8)((tmp4b&0xff00)>>8);
72
73 for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
74 noise_data.sval[rf_path] = (s8)noise_data.value[rf_path];
75 noise_data.sval[rf_path] /= 2;
76 }
77 /* mdelay(10); */
78 /* msleep(10); */
79
80 for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
81 if ((noise_data.valid_cnt[rf_path] < ValidCnt) && (noise_data.sval[rf_path] < Valid_Max && noise_data.sval[rf_path] >= Valid_Min)) {
82 noise_data.valid_cnt[rf_path]++;
83 noise_data.sum[rf_path] += noise_data.sval[rf_path];
84 if (noise_data.valid_cnt[rf_path] == ValidCnt) {
85 valid_done++;
86 }
87
88 }
89
90 }
91
92 /* printk("####### valid_done:%d #############\n", valid_done); */
93 if ((valid_done == max_rf_path) || (jiffies_to_msecs(jiffies - start) > max_time)) {
94 for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
95 /* printk("%s PATH_%d - sum = %d, valid_cnt = %d\n", __func__, rf_path, noise_data.sum[rf_path], noise_data.valid_cnt[rf_path]); */
96 if (noise_data.valid_cnt[rf_path])
97 noise_data.sum[rf_path] /= noise_data.valid_cnt[rf_path];
98 else
99 noise_data.sum[rf_path] = 0;
100 }
101 break;
102 }
103 }
104 reg_c50 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XAAGCCore1, bMaskByte0);
105 reg_c50 &= ~BIT7;
106 pDM_Odm->noise_level.noise[RF_PATH_A] = -110 + reg_c50 + noise_data.sum[RF_PATH_A];
107 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[RF_PATH_A];
108
109 if (max_rf_path == 2) {
110 reg_c58 = (s32)PHY_QueryBBReg(pDM_Odm->Adapter, rOFDM0_XBAGCCore1, bMaskByte0);
111 reg_c58 &= ~BIT7;
112 pDM_Odm->noise_level.noise[RF_PATH_B] = -110 + reg_c58 + noise_data.sum[RF_PATH_B];
113 pDM_Odm->noise_level.noise_all += pDM_Odm->noise_level.noise[RF_PATH_B];
114 }
115 pDM_Odm->noise_level.noise_all /= max_rf_path;
116
117 /* */
118 /* Step 4. Recover the Dig */
119 /* */
120 if (bPauseDIG)
121 odm_PauseDIG(pDM_Odm, ODM_RESUME_DIG, IGIValue);
122
123 return pDM_Odm->noise_level.noise_all;
124
125 }
126
ODM_InbandNoise_Monitor(void * pDM_VOID,u8 bPauseDIG,u8 IGIValue,u32 max_time)127 s16 ODM_InbandNoise_Monitor(void *pDM_VOID, u8 bPauseDIG, u8 IGIValue, u32 max_time)
128 {
129 return odm_InbandNoise_Monitor_NSeries(pDM_VOID, bPauseDIG, IGIValue, max_time);
130 }
131
