realtek-rtl8188eus-dkms/hal/phydm/txbf/phydm_hal_txbf_api.c

/******************************************************************************
 *
 * 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.
 *
 *****************************************************************************/

#include "mp_precomp.h"
#include "phydm_precomp.h"

#if (defined(CONFIG_BB_TXBF_API))
#if (RTL8822B_SUPPORT == 1)
/*Add by YuChen for 8822B MU-MIMO API*/

/*this function is only used for BFer*/
u8
phydm_get_ndpa_rate(
	void		*dm_void
)
{
	struct dm_struct	*dm = (struct dm_struct *)dm_void;
	u8		ndpa_rate = ODM_RATE6M;

	if (dm->rssi_min >= 30)	/*link RSSI > 30%*/
		ndpa_rate = ODM_RATE24M;
	else if (dm->rssi_min <= 25)
		ndpa_rate = ODM_RATE6M;

	PHYDM_DBG(dm, DBG_TXBF, "[%s] ndpa_rate = 0x%x\n", __func__, ndpa_rate);

	return ndpa_rate;

}

/*this function is only used for BFer*/
u8
phydm_get_beamforming_sounding_info(
	void		*dm_void,
	u16	*troughput,
	u8	total_bfee_num,
	u8	*tx_rate
)
{
	u8	idx = 0;
	u8	soundingdecision = 0xff;
	struct dm_struct	*dm = (struct dm_struct *)dm_void;

	for (idx = 0; idx < total_bfee_num; idx++) {
		if (dm->support_ic_type & (ODM_RTL8814A)) {
			if (((tx_rate[idx] >= ODM_RATEVHTSS3MCS7) && (tx_rate[idx] <= ODM_RATEVHTSS3MCS9)))
				soundingdecision = soundingdecision & ~(1 << idx);
		} else if (dm->support_ic_type & (ODM_RTL8822B | ODM_RTL8822C | ODM_RTL8812)) {
			if (((tx_rate[idx] >= ODM_RATEVHTSS2MCS7) && (tx_rate[idx] <= ODM_RATEVHTSS2MCS9)))
				soundingdecision = soundingdecision & ~(1 << idx);
		} else if (dm->support_ic_type & (ODM_RTL8814B)) {
			if (((tx_rate[idx] >= ODM_RATEVHTSS4MCS7) && (tx_rate[idx] <= ODM_RATEVHTSS4MCS9)))
				soundingdecision = soundingdecision & ~(1 << idx);
		}
	}

	for (idx = 0; idx < total_bfee_num; idx++) {
		if (troughput[idx] <= 10)
			soundingdecision = soundingdecision & ~(1 << idx);
	}

	PHYDM_DBG(dm, DBG_TXBF, "[%s] soundingdecision = 0x%x\n", __func__, soundingdecision);

	return soundingdecision;

}

/*this function is only used for BFer*/
u8
phydm_get_mu_bfee_snding_decision(
	void		*dm_void,
	u16	throughput
)
{
	u8	snding_score = 0;
	struct dm_struct	*dm = (struct dm_struct *)dm_void;

	/*throughput unit is Mbps*/
	if (throughput >= 500)
		snding_score = 100;
	else if (throughput >= 450)
		snding_score = 90;
	else if (throughput >= 400)
		snding_score = 80;
	else if (throughput >= 350)
		snding_score = 70;
	else if (throughput >= 300)
		snding_score = 60;
	else if (throughput >= 250)
		snding_score = 50;
	else if (throughput >= 200)
		snding_score = 40;
	else if (throughput >= 150)
		snding_score = 30;
	else if (throughput >= 100)
		snding_score = 20;
	else if (throughput >= 50)
		snding_score = 10;
	else
		snding_score = 0;

	PHYDM_DBG(dm, DBG_TXBF, "[%s] snding_score = 0x%x\n", __func__, snding_score);

	return snding_score;

}


#endif
#if (DM_ODM_SUPPORT_TYPE != ODM_AP)
u8
beamforming_get_htndp_tx_rate(
	void	*dm_void,
	u8	comp_steering_num_of_bfer
)
{
	struct dm_struct	*dm = (struct dm_struct *)dm_void;
	u8 nr_index = 0;
	u8 ndp_tx_rate;
	/*Find nr*/
#if (RTL8814A_SUPPORT == 1)
	if (dm->support_ic_type & ODM_RTL8814A)
		nr_index = tx_bf_nr(hal_txbf_8814a_get_ntx(dm), comp_steering_num_of_bfer);
	else
#endif
		nr_index = tx_bf_nr(1, comp_steering_num_of_bfer);

	switch (nr_index) {
	case 1:
		ndp_tx_rate = ODM_MGN_MCS8;
		break;

	case 2:
		ndp_tx_rate = ODM_MGN_MCS16;
		break;

	case 3:
		ndp_tx_rate = ODM_MGN_MCS24;
		break;

	default:
		ndp_tx_rate = ODM_MGN_MCS8;
		break;
	}

	return ndp_tx_rate;

}

u8
beamforming_get_vht_ndp_tx_rate(
	void	*dm_void,
	u8	comp_steering_num_of_bfer
)
{
	struct dm_struct	*dm = (struct dm_struct *)dm_void;
	u8 nr_index = 0;
	u8 ndp_tx_rate;
	/*Find nr*/
#if (RTL8814A_SUPPORT == 1)
	if (dm->support_ic_type & ODM_RTL8814A)
		nr_index = tx_bf_nr(hal_txbf_8814a_get_ntx(dm), comp_steering_num_of_bfer);
	else
#endif
		nr_index = tx_bf_nr(1, comp_steering_num_of_bfer);

	switch (nr_index) {
	case 1:
		ndp_tx_rate = ODM_MGN_VHT2SS_MCS0;
		break;

	case 2:
		ndp_tx_rate = ODM_MGN_VHT3SS_MCS0;
		break;

	case 3:
		ndp_tx_rate = ODM_MGN_VHT4SS_MCS0;
		break;

	default:
		ndp_tx_rate = ODM_MGN_VHT2SS_MCS0;
		break;
	}

	return ndp_tx_rate;

}
#endif

#endif