Contributors: 5
Author Tokens Token Proportion Commits Commit Proportion
Hans de Goede 1658 85.07% 1 6.67%
Fabio Aiuto 187 9.59% 5 33.33%
Quytelda Kahja 66 3.39% 2 13.33%
Marco Cesati 36 1.85% 6 40.00%
Nathan Chancellor 2 0.10% 1 6.67%
Total 1949 15 


// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 ******************************************************************************/

#include "odm_precomp.h"

#define READ_AND_CONFIG_MP(ic, txt) (ODM_ReadAndConfig_MP_##ic##txt(pDM_Odm))
#define READ_AND_CONFIG     READ_AND_CONFIG_MP

static u8 odm_query_rx_pwr_percentage(s8 ant_power)
{
	if ((ant_power <= -100) || (ant_power >= 20))
		return	0;
	else if (ant_power >= 0)
		return	100;
	else
		return 100 + ant_power;

}

s32 odm_signal_scale_mapping(struct dm_odm_t *dm_odm, s32 curr_sig)
{
	s32 ret_sig = 0;

	if (dm_odm->SupportInterface  == ODM_ITRF_SDIO) {
		if (curr_sig >= 51 && curr_sig <= 100)
			ret_sig = 100;
		else if (curr_sig >= 41 && curr_sig <= 50)
			ret_sig = 80 + ((curr_sig - 40)*2);
		else if (curr_sig >= 31 && curr_sig <= 40)
			ret_sig = 66 + (curr_sig - 30);
		else if (curr_sig >= 21 && curr_sig <= 30)
			ret_sig = 54 + (curr_sig - 20);
		else if (curr_sig >= 10 && curr_sig <= 20)
			ret_sig = 42 + (((curr_sig - 10) * 2) / 3);
		else if (curr_sig >= 5 && curr_sig <= 9)
			ret_sig = 22 + (((curr_sig - 5) * 3) / 2);
		else if (curr_sig >= 1 && curr_sig <= 4)
			ret_sig = 6 + (((curr_sig - 1) * 3) / 2);
		else
			ret_sig = curr_sig;
	}

	return ret_sig;
}

static u8 odm_evm_db_to_percentage(s8 value)
{
	/*  */
	/*  -33dB~0dB to 0%~99% */
	/*  */
	s8 ret_val;

	ret_val = value;
	ret_val /= 2;

	if (ret_val >= 0)
		ret_val = 0;
	if (ret_val <= -33)
		ret_val = -33;

	ret_val = 0 - ret_val;
	ret_val *= 3;

	if (ret_val == 99)
		ret_val = 100;

	return ret_val;
}

static s8 odm_cck_rssi(u8 lna_idx, u8 vga_idx)
{
	s8 rx_pwr_all = 0x00;

	switch (lna_idx) {
	/* 46  53 73 95 201301231630 */
	/*  46 53 77 99 201301241630 */

	case 6:
		rx_pwr_all = -34 - (2 * vga_idx);
		break;
	case 4:
		rx_pwr_all = -14 - (2 * vga_idx);
		break;
	case 1:
		rx_pwr_all = 6 - (2 * vga_idx);
		break;
	case 0:
		rx_pwr_all = 16 - (2 * vga_idx);
		break;
	default:
		/* rx_pwr_all = -53+(2*(31-VGA_idx)); */
		break;
	}
	return rx_pwr_all;
}

static void odm_rx_phy_status_parsing(struct dm_odm_t *dm_odm,
				      struct odm_phy_info *phy_info,
				      u8 *phy_status,
				      struct odm_packet_info *pkt_info)
{
	u8 i;
	s8 rx_pwr[4], rx_pwr_all = 0;
	u8 evm, pwdb_all = 0, pwdb_all_bt;
	u8 rssi, total_rssi = 0;
	bool is_cck_rate = false;
	u8 rf_rx_num = 0;
	u8 lna_idx, vga_idx;
	struct phy_status_rpt_8192cd_t *phy_sta_rpt = (struct phy_status_rpt_8192cd_t *)phy_status;

	is_cck_rate = pkt_info->data_rate <= DESC_RATE11M;
	phy_info->rx_mimo_signal_quality[RF_PATH_A] = -1;
	phy_info->rx_mimo_signal_quality[RF_PATH_B] = -1;


	if (is_cck_rate) {
		u8 cck_agc_rpt;

		dm_odm->PhyDbgInfo.NumQryPhyStatusCCK++;

		/*
		 * (1)Hardware does not provide RSSI for CCK/
		 * (2)PWDB, Average PWDB calculated by
		 *    hardware (for rate adaptive)
		 */

		cck_agc_rpt = phy_sta_rpt->cck_agc_rpt_ofdm_cfosho_a;

		/*
		 * 2011.11.28 LukeLee: 88E use different LNA & VGA gain table
		 * The RSSI formula should be modified according to the gain table
		 */
		lna_idx = ((cck_agc_rpt & 0xE0)>>5);
		vga_idx = (cck_agc_rpt & 0x1F);
		rx_pwr_all = odm_cck_rssi(lna_idx, vga_idx);
		pwdb_all = odm_query_rx_pwr_percentage(rx_pwr_all);
		if (pwdb_all > 100)
			pwdb_all = 100;

		phy_info->rx_pwd_ba11 = pwdb_all;
		phy_info->bt_rx_rssi_percentage = pwdb_all;
		phy_info->recv_signal_power = rx_pwr_all;

		/*  (3) Get Signal Quality (EVM) */

		/* if (pPktinfo->bPacketMatchBSSID) */
		{
			u8 sq, sq_rpt;

			if (phy_info->rx_pwd_ba11 > 40 && !dm_odm->bInHctTest)
				sq = 100;
			else {
				sq_rpt = phy_sta_rpt->cck_sig_qual_ofdm_pwdb_all;

				if (sq_rpt > 64)
					sq = 0;
				else if (sq_rpt < 20)
					sq = 100;
				else
					sq = ((64-sq_rpt) * 100) / 44;

			}

			phy_info->signal_quality = sq;
			phy_info->rx_mimo_signal_quality[RF_PATH_A] = sq;
			phy_info->rx_mimo_signal_quality[RF_PATH_B] = -1;
		}
	} else { /* is OFDM rate */
		dm_odm->PhyDbgInfo.NumQryPhyStatusOFDM++;

		/*
		 * (1)Get RSSI for HT rate
		 */

		for (i = RF_PATH_A; i < RF_PATH_MAX; i++) {
			/*  2008/01/30 MH we will judge RF RX path now. */
			if (dm_odm->RFPathRxEnable & BIT(i))
				rf_rx_num++;
			/* else */
				/* continue; */

			rx_pwr[i] = ((phy_sta_rpt->path_agc[i].gain & 0x3F) * 2) - 110;

			phy_info->rx_pwr[i] = rx_pwr[i];

			/* Translate DBM to percentage. */
			rssi = odm_query_rx_pwr_percentage(rx_pwr[i]);
			total_rssi += rssi;

			phy_info->rx_mimo_signal_strength[i] = (u8)rssi;

			/* Get Rx snr value in DB */
			phy_info->rx_snr[i] = dm_odm->PhyDbgInfo.RxSNRdB[i] = (s32)(phy_sta_rpt->path_rxsnr[i]/2);
		}

		/*
		 * (2)PWDB, Average PWDB calculated by hardware (for rate adaptive)
		 */
		rx_pwr_all = ((phy_sta_rpt->cck_sig_qual_ofdm_pwdb_all >> 1) & 0x7f) - 110;

		pwdb_all_bt = pwdb_all = odm_query_rx_pwr_percentage(rx_pwr_all);

		phy_info->rx_pwd_ba11 = pwdb_all;
		phy_info->bt_rx_rssi_percentage = pwdb_all_bt;
		phy_info->rx_power = rx_pwr_all;
		phy_info->recv_signal_power = rx_pwr_all;

		/*
		 * (3)EVM of HT rate
		 *
		 * Only spatial stream 1 makes sense
		 *
		 * Do not use shift operation like "rx_evmX >>= 1"
		 * because the compiler of free build environment
		 * fill most significant bit to "zero" when doing
		 * shifting operation which may change a negative
		 * value to positive one, then the dbm value (which
		 * is supposed to be negative) is not correct
		 * anymore.
		 */
		evm = odm_evm_db_to_percentage(phy_sta_rpt->stream_rxevm[0]); /* dbm */

		/*  Fill value in RFD, Get the first spatial stream only */
		phy_info->signal_quality = (u8)(evm & 0xff);

		phy_info->rx_mimo_signal_quality[RF_PATH_A] = (u8)(evm & 0xff);

		odm_parsing_cfo(dm_odm, pkt_info, phy_sta_rpt->path_cfotail);
	}

	/*
	 * UI BSS List signal strength(in percentage), make it good
	 * looking, from 0~100.
	 * It is assigned to the BSS List in GetValueFromBeaconOrProbeRsp().
	 */
	if (is_cck_rate) {
		phy_info->signal_strength = (u8)(odm_signal_scale_mapping(dm_odm, pwdb_all));
	} else {
		if (rf_rx_num != 0) {
			phy_info->signal_strength = (u8)(odm_signal_scale_mapping(dm_odm, total_rssi /= rf_rx_num));
		}
	}
}

static void odm_Process_RSSIForDM(
	struct dm_odm_t *pDM_Odm, struct odm_phy_info *pPhyInfo, struct odm_packet_info *pPktinfo
)
{

	s32 UndecoratedSmoothedPWDB, UndecoratedSmoothedCCK, UndecoratedSmoothedOFDM, RSSI_Ave;
	u8 isCCKrate = 0;
	u8 RSSI_max, RSSI_min, i;
	u32 OFDM_pkt = 0;
	u32 Weighting = 0;
	PSTA_INFO_T pEntry;


	if (pPktinfo->station_id == 0xFF)
		return;

	pEntry = pDM_Odm->pODM_StaInfo[pPktinfo->station_id];

	if (!IS_STA_VALID(pEntry))
		return;

	if ((!pPktinfo->bssid_match))
		return;

	if (pPktinfo->is_beacon)
		pDM_Odm->PhyDbgInfo.NumQryBeaconPkt++;

	isCCKrate = ((pPktinfo->data_rate <= DESC_RATE11M)) ? true : false;
	pDM_Odm->RxRate = pPktinfo->data_rate;

	/* Statistic for antenna/path diversity------------------ */
	if (pDM_Odm->SupportAbility & ODM_BB_ANT_DIV) {

	}

	/* Smart Antenna Debug Message------------------ */

	UndecoratedSmoothedCCK = pEntry->rssi_stat.UndecoratedSmoothedCCK;
	UndecoratedSmoothedOFDM = pEntry->rssi_stat.UndecoratedSmoothedOFDM;
	UndecoratedSmoothedPWDB = pEntry->rssi_stat.UndecoratedSmoothedPWDB;

	if (pPktinfo->to_self || pPktinfo->is_beacon) {

		if (!isCCKrate) { /* ofdm rate */
			if (pPhyInfo->rx_mimo_signal_strength[RF_PATH_B] == 0) {
				RSSI_Ave = pPhyInfo->rx_mimo_signal_strength[RF_PATH_A];
				pDM_Odm->RSSI_A = pPhyInfo->rx_mimo_signal_strength[RF_PATH_A];
				pDM_Odm->RSSI_B = 0;
			} else {
				pDM_Odm->RSSI_A =  pPhyInfo->rx_mimo_signal_strength[RF_PATH_A];
				pDM_Odm->RSSI_B = pPhyInfo->rx_mimo_signal_strength[RF_PATH_B];

				if (
					pPhyInfo->rx_mimo_signal_strength[RF_PATH_A] >
					pPhyInfo->rx_mimo_signal_strength[RF_PATH_B]
				) {
					RSSI_max = pPhyInfo->rx_mimo_signal_strength[RF_PATH_A];
					RSSI_min = pPhyInfo->rx_mimo_signal_strength[RF_PATH_B];
				} else {
					RSSI_max = pPhyInfo->rx_mimo_signal_strength[RF_PATH_B];
					RSSI_min = pPhyInfo->rx_mimo_signal_strength[RF_PATH_A];
				}

				if ((RSSI_max-RSSI_min) < 3)
					RSSI_Ave = RSSI_max;
				else if ((RSSI_max-RSSI_min) < 6)
					RSSI_Ave = RSSI_max - 1;
				else if ((RSSI_max-RSSI_min) < 10)
					RSSI_Ave = RSSI_max - 2;
				else
					RSSI_Ave = RSSI_max - 3;
			}

			/* 1 Process OFDM RSSI */
			if (UndecoratedSmoothedOFDM <= 0)	/*  initialize */
				UndecoratedSmoothedOFDM = pPhyInfo->rx_pwd_ba11;
			else {
				if (pPhyInfo->rx_pwd_ba11 > (u32)UndecoratedSmoothedOFDM) {
					UndecoratedSmoothedOFDM =
							((UndecoratedSmoothedOFDM*(Rx_Smooth_Factor-1)) +
							RSSI_Ave)/Rx_Smooth_Factor;
					UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM + 1;
				} else {
					UndecoratedSmoothedOFDM =
							((UndecoratedSmoothedOFDM*(Rx_Smooth_Factor-1)) +
							RSSI_Ave)/Rx_Smooth_Factor;
				}
			}

			pEntry->rssi_stat.PacketMap = (pEntry->rssi_stat.PacketMap<<1) | BIT0;

		} else {
			RSSI_Ave = pPhyInfo->rx_pwd_ba11;
			pDM_Odm->RSSI_A = (u8) pPhyInfo->rx_pwd_ba11;
			pDM_Odm->RSSI_B = 0;

			/* 1 Process CCK RSSI */
			if (UndecoratedSmoothedCCK <= 0)	/*  initialize */
				UndecoratedSmoothedCCK = pPhyInfo->rx_pwd_ba11;
			else {
				if (pPhyInfo->rx_pwd_ba11 > (u32)UndecoratedSmoothedCCK) {
					UndecoratedSmoothedCCK =
							((UndecoratedSmoothedCCK*(Rx_Smooth_Factor-1)) +
							pPhyInfo->rx_pwd_ba11)/Rx_Smooth_Factor;
					UndecoratedSmoothedCCK = UndecoratedSmoothedCCK + 1;
				} else {
					UndecoratedSmoothedCCK =
							((UndecoratedSmoothedCCK*(Rx_Smooth_Factor-1)) +
							pPhyInfo->rx_pwd_ba11)/Rx_Smooth_Factor;
				}
			}
			pEntry->rssi_stat.PacketMap = pEntry->rssi_stat.PacketMap<<1;
		}

		/* if (pEntry) */
		{
			/* 2011.07.28 LukeLee: modified to prevent unstable CCK RSSI */
			if (pEntry->rssi_stat.ValidBit >= 64)
				pEntry->rssi_stat.ValidBit = 64;
			else
				pEntry->rssi_stat.ValidBit++;

			for (i = 0; i < pEntry->rssi_stat.ValidBit; i++)
				OFDM_pkt += (u8)(pEntry->rssi_stat.PacketMap>>i)&BIT0;

			if (pEntry->rssi_stat.ValidBit == 64) {
				Weighting = ((OFDM_pkt<<4) > 64)?64:(OFDM_pkt<<4);
				UndecoratedSmoothedPWDB = (Weighting*UndecoratedSmoothedOFDM+(64-Weighting)*UndecoratedSmoothedCCK)>>6;
			} else {
				if (pEntry->rssi_stat.ValidBit != 0)
					UndecoratedSmoothedPWDB = (OFDM_pkt*UndecoratedSmoothedOFDM+(pEntry->rssi_stat.ValidBit-OFDM_pkt)*UndecoratedSmoothedCCK)/pEntry->rssi_stat.ValidBit;
				else
					UndecoratedSmoothedPWDB = 0;
			}

			pEntry->rssi_stat.UndecoratedSmoothedCCK = UndecoratedSmoothedCCK;
			pEntry->rssi_stat.UndecoratedSmoothedOFDM = UndecoratedSmoothedOFDM;
			pEntry->rssi_stat.UndecoratedSmoothedPWDB = UndecoratedSmoothedPWDB;
		}

	}
}


/*  */
/*  Endianness before calling this API */
/*  */
void odm_phy_status_query(struct dm_odm_t *dm_odm, struct odm_phy_info *phy_info,
			  u8 *phy_status, struct odm_packet_info *pkt_info)
{

	odm_rx_phy_status_parsing(dm_odm, phy_info, phy_status, pkt_info);

	if (!dm_odm->RSSI_test)
		odm_Process_RSSIForDM(dm_odm, phy_info, pkt_info);
}

/*  */
/*  If you want to add a new IC, Please follow below template and generate a new one. */
/*  */
/*  */

enum hal_status ODM_ConfigRFWithHeaderFile(
	struct dm_odm_t *pDM_Odm,
	enum ODM_RF_Config_Type ConfigType,
	enum rf_path eRFPath
)
{
	if (ConfigType == CONFIG_RF_RADIO)
		READ_AND_CONFIG(8723B, _RadioA);
	else if (ConfigType == CONFIG_RF_TXPWR_LMT)
		READ_AND_CONFIG(8723B, _TXPWR_LMT);

	return HAL_STATUS_SUCCESS;
}

enum hal_status ODM_ConfigRFWithTxPwrTrackHeaderFile(struct dm_odm_t *pDM_Odm)
{
	if (pDM_Odm->SupportInterface == ODM_ITRF_SDIO)
		READ_AND_CONFIG(8723B, _TxPowerTrack_SDIO);

	return HAL_STATUS_SUCCESS;
}

enum hal_status ODM_ConfigBBWithHeaderFile(
	struct dm_odm_t *pDM_Odm, enum ODM_BB_Config_Type ConfigType
)
{
	if (ConfigType == CONFIG_BB_PHY_REG)
		READ_AND_CONFIG(8723B, _PHY_REG);
	else if (ConfigType == CONFIG_BB_AGC_TAB)
		READ_AND_CONFIG(8723B, _AGC_TAB);
	else if (ConfigType == CONFIG_BB_PHY_REG_PG)
		READ_AND_CONFIG(8723B, _PHY_REG_PG);

	return HAL_STATUS_SUCCESS;
}