RinCat/RTL88x2BU-Linux-Driver
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RTL88x2BU-Linux-Driver/hal/phydm/phydm_noisemonitor.c

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/******************************************************************************
*
* Copyright(c) 2007 - 2017 Realtek Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* wlanfae <wlanfae@realtek.com>
* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
* Hsinchu 300, Taiwan.
*
* Larry Finger <Larry.Finger@lwfinger.net>
*
*****************************************************************************/
/* ************************************************************
* include files
* ************************************************************ */
#include "mp_precomp.h"
#include "phydm_precomp.h"
/* *************************************************
* This function is for inband noise test utility only
* To obtain the inband noise level(dbm), do the following.
* 1. disable DIG and Power Saving
* 2. Set initial gain = 0x1a
* 3. Stop updating idle time pwer report (for driver read)
* - 0x80c[25]
*
* ************************************************* */
#define VALID_CNT 5
void phydm_set_noise_data_sum(struct noise_level *noise_data, u8 max_rf_path)
{
u8 rf_path;
for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
if (noise_data->valid_cnt[rf_path])
noise_data->sum[rf_path] /= noise_data->valid_cnt[rf_path];
else
noise_data->sum[rf_path] = 0;
}
}
s16 odm_inband_noise_monitor_n_series(struct dm_struct *dm, u8 is_pause_dig, u8 igi_value, u32 max_time)
{
u32 tmp4b;
u8 max_rf_path = 0, rf_path;
u8 reg_c50, reg_c58, valid_done = 0;
struct noise_level noise_data;
u64 start = 0, func_start = 0, func_end = 0;
func_start = odm_get_current_time(dm);
dm->noise_level.noise_all = 0;
if ((dm->rf_type == RF_1T2R) || (dm->rf_type == RF_2T2R))
max_rf_path = 2;
else
max_rf_path = 1;
PHYDM_DBG(dm, DBG_ENV_MNTR, "odm_DebugControlInbandNoise_Nseries() ==>\n");
odm_memory_set(dm, &noise_data, 0, sizeof(struct noise_level));
/* step 1. Disable DIG && Set initial gain. */
if (is_pause_dig)
odm_pause_dig(dm, PHYDM_PAUSE, PHYDM_PAUSE_LEVEL_1, igi_value);
/* step 3. Get noise power level */
start = odm_get_current_time(dm);
while (1) {
/* Stop updating idle time pwer report (for driver read) */
odm_set_bb_reg(dm, REG_FPGA0_TX_GAIN_STAGE, BIT(25), 1);
/* Read Noise Floor Report */
tmp4b = odm_get_bb_reg(dm, 0x8f8, MASKDWORD);
/* update idle time pwer report per 5us */
odm_set_bb_reg(dm, REG_FPGA0_TX_GAIN_STAGE, BIT(25), 0);
ODM_delay_us(5);
noise_data.value[RF_PATH_A] = (u8)(tmp4b & 0xff);
noise_data.value[RF_PATH_B] = (u8)((tmp4b & 0xff00) >> 8);
for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
noise_data.sval[rf_path] = (s8)noise_data.value[rf_path];
noise_data.sval[rf_path] /= 2;
}
for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
if (noise_data.valid_cnt[rf_path] >= VALID_CNT)
continue;
noise_data.valid_cnt[rf_path]++;
noise_data.sum[rf_path] += noise_data.sval[rf_path];
PHYDM_DBG(dm, DBG_ENV_MNTR, "rf_path:%d Valid sval = %d\n", rf_path, noise_data.sval[rf_path]);
PHYDM_DBG(dm, DBG_ENV_MNTR, "Sum of sval = %d,\n", noise_data.sum[rf_path]);
if (noise_data.valid_cnt[rf_path] == VALID_CNT)
valid_done++;
}
if ((valid_done == max_rf_path) || (odm_get_progressing_time(dm, start) > max_time)) {
phydm_set_noise_data_sum(&noise_data, max_rf_path);
break;
}
}
reg_c50 = (u8)odm_get_bb_reg(dm, REG_OFDM_0_XA_AGC_CORE1, MASKBYTE0);
reg_c50 &= ~BIT(7);
dm->noise_level.noise[RF_PATH_A] = (s8)(-110 + reg_c50 + noise_data.sum[RF_PATH_A]);
dm->noise_level.noise_all += dm->noise_level.noise[RF_PATH_A];
if (max_rf_path == 2) {
reg_c58 = (u8)odm_get_bb_reg(dm, REG_OFDM_0_XB_AGC_CORE1, MASKBYTE0);
reg_c58 &= ~BIT(7);
dm->noise_level.noise[RF_PATH_B] = (s8)(-110 + reg_c58 + noise_data.sum[RF_PATH_B]);
dm->noise_level.noise_all += dm->noise_level.noise[RF_PATH_B];
}
dm->noise_level.noise_all /= max_rf_path;
PHYDM_DBG(dm, DBG_ENV_MNTR, "noise_a = %d, noise_b = %d, noise_all = %d\n",
dm->noise_level.noise[RF_PATH_A], dm->noise_level.noise[RF_PATH_B],
dm->noise_level.noise_all);
/* step 4. Recover the Dig */
if (is_pause_dig)
odm_pause_dig(dm, PHYDM_RESUME, PHYDM_PAUSE_LEVEL_1, igi_value);
func_end = odm_get_progressing_time(dm, func_start);
PHYDM_DBG(dm, DBG_ENV_MNTR, "end\n");
return dm->noise_level.noise_all;
}
s16
phydm_idle_noise_measurement_ac(
struct dm_struct *dm,
u8 is_pause_dig,
u8 igi_value,
u32 max_time
)
{
u32 tmp4b;
u8 max_rf_path = 0, rf_path;
u8 reg_c50, reg_e50, valid_done = 0;
u64 start = 0, func_start = 0, func_end = 0;
struct noise_level noise_data;
func_start = odm_get_current_time(dm);
dm->noise_level.noise_all = 0;
if ((dm->rf_type == RF_1T2R) || (dm->rf_type == RF_2T2R))
max_rf_path = 2;
else
max_rf_path = 1;
PHYDM_DBG(dm, DBG_ENV_MNTR, "phydm_idle_noise_measurement_ac==>\n");
odm_memory_set(dm, &noise_data, 0, sizeof(struct noise_level));
/*Step 1. Disable DIG && Set initial gain.*/
if (is_pause_dig)
odm_pause_dig(dm, PHYDM_PAUSE, PHYDM_PAUSE_LEVEL_1, igi_value);
/*Step 2. Get noise power level*/
start = odm_get_current_time(dm);
while (1) {
/*Stop updating idle time pwer report (for driver read)*/
odm_set_bb_reg(dm, 0x9e4, BIT(30), 0x1);
/*Read Noise Floor Report*/
tmp4b = odm_get_bb_reg(dm, 0xff0, MASKDWORD);
/*update idle time pwer report per 5us*/
odm_set_bb_reg(dm, 0x9e4, BIT(30), 0x0);
ODM_delay_us(5);
noise_data.value[RF_PATH_A] = (u8)(tmp4b & 0xff);
noise_data.value[RF_PATH_B] = (u8)((tmp4b & 0xff00) >> 8);
for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
noise_data.sval[rf_path] = (s8)noise_data.value[rf_path];
noise_data.sval[rf_path] = noise_data.sval[rf_path] >> 1;
}
for (rf_path = RF_PATH_A; rf_path < max_rf_path; rf_path++) {
if (noise_data.valid_cnt[rf_path] >= VALID_CNT)
continue;
noise_data.valid_cnt[rf_path]++;
noise_data.sum[rf_path] += noise_data.sval[rf_path];
PHYDM_DBG(dm, DBG_ENV_MNTR, "Path:%d Valid sval = %d\n", rf_path, noise_data.sval[rf_path]);
PHYDM_DBG(dm, DBG_ENV_MNTR, "Sum of sval = %d\n", noise_data.sum[rf_path]);
if (noise_data.valid_cnt[rf_path] == VALID_CNT)
valid_done++;
}
if ((valid_done == max_rf_path) || (odm_get_progressing_time(dm, start) > max_time)) {
phydm_set_noise_data_sum(&noise_data, max_rf_path);
break;
}
}
reg_c50 = (u8)odm_get_bb_reg(dm, 0xc50, MASKBYTE0);
reg_c50 &= ~BIT(7);
dm->noise_level.noise[RF_PATH_A] = (s8)(-110 + reg_c50 + noise_data.sum[RF_PATH_A]);
dm->noise_level.noise_all += dm->noise_level.noise[RF_PATH_A];
if (max_rf_path == 2) {
reg_e50 = (u8)odm_get_bb_reg(dm, 0xe50, MASKBYTE0);
reg_e50 &= ~BIT(7);
dm->noise_level.noise[RF_PATH_B] = (s8)(-110 + reg_e50 + noise_data.sum[RF_PATH_B]);
dm->noise_level.noise_all += dm->noise_level.noise[RF_PATH_B];
}
dm->noise_level.noise_all /= max_rf_path;
PHYDM_DBG(dm, DBG_ENV_MNTR, "noise_a = %d, noise_b = %d, noise_all = %d\n",
dm->noise_level.noise[RF_PATH_A], dm->noise_level.noise[RF_PATH_B],
dm->noise_level.noise_all);
/*Step 3. Recover the Dig*/
if (is_pause_dig)
odm_pause_dig(dm, PHYDM_RESUME, PHYDM_PAUSE_LEVEL_1, igi_value);
func_end = odm_get_progressing_time(dm, func_start);
PHYDM_DBG(dm, DBG_ENV_MNTR, "end\n");
return dm->noise_level.noise_all;
}
s16
odm_inband_noise_monitor_ac_series(
struct dm_struct *dm,
u8 is_pause_dig,
u8 igi_value,
u32 max_time
)
{
s32 rxi_buf_anta, rxq_buf_anta; /*rxi_buf_antb, rxq_buf_antb;*/
s32 value32, pwdb_A = 0, sval, noise, sum = 0;
boolean pd_flag;
u8 valid_cnt = 0;
u64 start = 0, func_start = 0, func_end = 0;
if (dm->support_ic_type & (ODM_RTL8822B | ODM_RTL8821C))
return phydm_idle_noise_measurement_ac(dm, is_pause_dig, igi_value, max_time);
if (!(dm->support_ic_type & (ODM_RTL8812 | ODM_RTL8821 | ODM_RTL8814A)))
return 0;
func_start = odm_get_current_time(dm);
dm->noise_level.noise_all = 0;
PHYDM_DBG(dm, DBG_ENV_MNTR, "odm_inband_noise_monitor_ac_series() ==>\n");
/* step 1. Disable DIG && Set initial gain. */
if (is_pause_dig)
odm_pause_dig(dm, PHYDM_PAUSE, PHYDM_PAUSE_LEVEL_1, igi_value);
/* step 3. Get noise power level */
start = odm_get_current_time(dm);
/* step 3. Get noise power level */
while (1) {
/*Set IGI=0x1C */
odm_write_dig(dm, 0x1C);
/*stop CK320&CK88 */
odm_set_bb_reg(dm, 0x8B4, BIT(6), 1);
/*Read path-A */
odm_set_bb_reg(dm, 0x8FC, MASKDWORD, 0x200); /*set debug port*/
value32 = odm_get_bb_reg(dm, 0xFA0, MASKDWORD); /*read debug port*/
rxi_buf_anta = (value32 & 0xFFC00) >> 10; /*rxi_buf_anta=RegFA0[19:10]*/
rxq_buf_anta = value32 & 0x3FF; /*rxq_buf_anta=RegFA0[19:10]*/
pd_flag = (boolean)((value32 & BIT(31)) >> 31);
/*Not in packet detection period or Tx state */
if ((!pd_flag) || (rxi_buf_anta != 0x200)) {
/*sign conversion*/
rxi_buf_anta = odm_sign_conversion(rxi_buf_anta, 10);
rxq_buf_anta = odm_sign_conversion(rxq_buf_anta, 10);
pwdb_A = odm_pwdb_conversion(rxi_buf_anta * rxi_buf_anta + rxq_buf_anta * rxq_buf_anta, 20, 18); /*S(10,9)*S(10,9)=S(20,18)*/
PHYDM_DBG(dm, DBG_ENV_MNTR, "pwdb_A= %d dB, rxi_buf_anta= 0x%x, rxq_buf_anta= 0x%x\n", pwdb_A, rxi_buf_anta & 0x3FF, rxq_buf_anta & 0x3FF);
}
/*Start CK320&CK88*/
odm_set_bb_reg(dm, 0x8B4, BIT(6), 0);
/*BB Reset*/
odm_write_1byte(dm, 0x02, odm_read_1byte(dm, 0x02) & (~BIT(0)));
odm_write_1byte(dm, 0x02, odm_read_1byte(dm, 0x02) | BIT(0));
/*PMAC Reset*/
odm_write_1byte(dm, 0xB03, odm_read_1byte(dm, 0xB03) & (~BIT(0)));
odm_write_1byte(dm, 0xB03, odm_read_1byte(dm, 0xB03) | BIT(0));
/*CCK Reset*/
if (odm_read_1byte(dm, 0x80B) & BIT(4)) {
odm_write_1byte(dm, 0x80B, odm_read_1byte(dm, 0x80B) & (~BIT(4)));
odm_write_1byte(dm, 0x80B, odm_read_1byte(dm, 0x80B) | BIT(4));
}
sval = pwdb_A;
if ((sval < 0 && sval >= -27) && (valid_cnt < VALID_CNT)){
valid_cnt++;
sum += sval;
PHYDM_DBG(dm, DBG_ENV_MNTR, "Valid sval = %d\n", sval);
PHYDM_DBG(dm, DBG_ENV_MNTR, "Sum of sval = %d,\n", sum);
if ((valid_cnt >= VALID_CNT) || (odm_get_progressing_time(dm, start) > max_time)) {
sum /= VALID_CNT;
PHYDM_DBG(dm, DBG_ENV_MNTR, "After divided, sum = %d\n", sum);
break;
}
}
}
/*ADC backoff is 12dB,*/
/*Ptarget=0x1C-110=-82dBm*/
noise = sum + 12 + 0x1C - 110;
/*Offset*/
noise = noise - 3;
PHYDM_DBG(dm, DBG_ENV_MNTR, "noise = %d\n", noise);
dm->noise_level.noise_all = (s16)noise;
/* step 4. Recover the Dig*/
if (is_pause_dig)
odm_pause_dig(dm, PHYDM_RESUME, PHYDM_PAUSE_LEVEL_1, igi_value);
func_end = odm_get_progressing_time(dm, func_start);
PHYDM_DBG(dm, DBG_ENV_MNTR, "odm_inband_noise_monitor_ac_series() <==\n");
return dm->noise_level.noise_all;
}
s16
odm_inband_noise_monitor(
void *dm_void,
u8 is_pause_dig,
u8 igi_value,
u32 max_time
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
igi_value = 0x32; /*since HW ability is about +15~-35, we fix IGI = -60 for maximum coverage*/
if (dm->support_ic_type & ODM_IC_11AC_SERIES)
return odm_inband_noise_monitor_ac_series(dm, is_pause_dig, igi_value, max_time);
else
return odm_inband_noise_monitor_n_series(dm, is_pause_dig, igi_value, max_time);
}
void
phydm_noisy_detection(
void *dm_void
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
u32 total_fa_cnt, total_cca_cnt;
u32 score = 0, i, score_smooth;
total_cca_cnt = dm->false_alm_cnt.cnt_cca_all;
total_fa_cnt = dm->false_alm_cnt.cnt_all;
#if 0
if (total_fa_cnt * 16 >= total_cca_cnt * 14) /* 87.5 */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 12) /* 75 */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 10) /* 56.25 */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 8) /* 50 */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 7) /* 43.75 */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 6) /* 37.5 */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 5) /* 31.25% */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 4) /* 25% */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 3) /* 18.75% */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 2) /* 12.5% */
;
else if (total_fa_cnt * 16 >= total_cca_cnt * 1) /* 6.25% */
;
#endif
for (i = 0; i <= 16; i++) {
if (total_fa_cnt * 16 >= total_cca_cnt * (16 - i)) {
score = 16 - i;
break;
}
}
/* noisy_decision_smooth = noisy_decision_smooth>>1 + (score<<3)>>1; */
dm->noisy_decision_smooth = (dm->noisy_decision_smooth >> 1) + (score << 2);
/* Round the noisy_decision_smooth: +"3" comes from (2^3)/2-1 */
score_smooth = (total_cca_cnt >= 300) ? ((dm->noisy_decision_smooth + 3) >> 3) : 0;
dm->noisy_decision = (score_smooth >= 3) ? 1 : 0;
PHYDM_DBG(dm, DBG_ENV_MNTR,
"[NoisyDetection] CCA_cnt=%d,FA_cnt=%d, noisy_dec_smooth=%d, score=%d, score_smooth=%d, noisy_dec=%d\n",
total_cca_cnt, total_fa_cnt, dm->noisy_decision_smooth, score, score_smooth, dm->noisy_decision);
}
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