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rtw88: 8821c: add beamformee support

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Beamforming is used for directional signal transmission/reception.
Beamformee plays the role for signal reception, and makes the RX
performance better in middle distance range.

Implement beamformee related callbacks for 8821c.

Since 8821c only support 1ss rate, nc_index in beamformee setting
needs to be adjusted based on the capability.

Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200603094218.19942-4-yhchuang@realtek.com
This commit is contained in:
Tzu-En Huang 2020-06-03 17:42:16 +08:00 committed by Kalle Valo
parent 3a4312828c
commit 5f4eab883c
2 changed files with 48 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/wireless/realtek/rtw88/bf.c
View File

@ -183,7 +183,7 @@ void rtw_bf_del_sounding(struct rtw_dev *rtwdev)
void rtw_bf_enable_bfee_su(struct rtw_dev *rtwdev, struct rtw_vif *vif,
struct rtw_bfee *bfee)
{
u8 nc_index = 1;
u8 nc_index = hweight8(rtwdev->hal.antenna_rx) - 1;
u8 nr_index = bfee->sound_dim;
u8 grouping = 0, codebookinfo = 1, coefficientsize = 3;
u32 addr_bfer_info, addr_csi_rpt, csi_param;
@ -231,7 +231,8 @@ void rtw_bf_enable_bfee_mu(struct rtw_dev *rtwdev, struct rtw_vif *vif,
{
struct rtw_bf_info *bf_info = &rtwdev->bf_info;
struct mu_bfer_init_para param;
u8 nc_index = 1, nr_index = 1;
u8 nc_index = hweight8(rtwdev->hal.antenna_rx) - 1;
u8 nr_index = 1;
u8 grouping = 0, codebookinfo = 1, coefficientsize = 0;
u32 csi_param;

45
drivers/net/wireless/realtek/rtw88/rtw8821c.c
View File

@ -101,6 +101,13 @@ static void rtw8821c_pwrtrack_init(struct rtw_dev *rtwdev)
dm_info->thermal_meter_k = rtwdev->efuse.thermal_meter_k;
}
static void rtw8821c_phy_bf_init(struct rtw_dev *rtwdev)
{
rtw_bf_phy_init(rtwdev);
/* Grouping bitmap parameters */
rtw_write32(rtwdev, 0x1C94, 0xAFFFAFFF);
}
static void rtw8821c_phy_set_param(struct rtw_dev *rtwdev)
{
u8 crystal_cap, val;
@ -145,6 +152,8 @@ static void rtw8821c_phy_set_param(struct rtw_dev *rtwdev)
rtwdev->dm_info.cck_pd_default = rtw_read8(rtwdev, REG_CSRATIO) & 0x1f;
rtw8821c_pwrtrack_init(rtwdev);
rtw8821c_phy_bf_init(rtwdev);
}
static int rtw8821c_mac_init(struct rtw_dev *rtwdev)
@ -786,6 +795,37 @@ static void rtw8821c_pwr_track(struct rtw_dev *rtwdev)
dm_info->pwr_trk_triggered = false;
}
static void rtw8821c_bf_config_bfee_su(struct rtw_dev *rtwdev,
struct rtw_vif *vif,
struct rtw_bfee *bfee, bool enable)
{
if (enable)
rtw_bf_enable_bfee_su(rtwdev, vif, bfee);
else
rtw_bf_remove_bfee_su(rtwdev, bfee);
}
static void rtw8821c_bf_config_bfee_mu(struct rtw_dev *rtwdev,
struct rtw_vif *vif,
struct rtw_bfee *bfee, bool enable)
{
if (enable)
rtw_bf_enable_bfee_mu(rtwdev, vif, bfee);
else
rtw_bf_remove_bfee_mu(rtwdev, bfee);
}
static void rtw8821c_bf_config_bfee(struct rtw_dev *rtwdev, struct rtw_vif *vif,
struct rtw_bfee *bfee, bool enable)
{
if (bfee->role == RTW_BFEE_SU)
rtw8821c_bf_config_bfee_su(rtwdev, vif, bfee, enable);
else if (bfee->role == RTW_BFEE_MU)
rtw8821c_bf_config_bfee_mu(rtwdev, vif, bfee, enable);
else
rtw_warn(rtwdev, "wrong bfee role\n");
}
static void rtw8821c_phy_cck_pd_set(struct rtw_dev *rtwdev, u8 new_lvl)
{
struct rtw_dm_info *dm_info = &rtwdev->dm_info;
@ -1250,6 +1290,9 @@ static struct rtw_chip_ops rtw8821c_ops = {
.phy_calibration = rtw8821c_phy_calibration,
.cck_pd_set = rtw8821c_phy_cck_pd_set,
.pwr_track = rtw8821c_pwr_track,
.config_bfee = rtw8821c_bf_config_bfee,
.set_gid_table = rtw_bf_set_gid_table,
.cfg_csi_rate = rtw_bf_cfg_csi_rate,
};
static const u8 rtw8821c_pwrtrk_5gb_n[][RTW_PWR_TRK_TBL_SZ] = {
@ -1395,6 +1438,8 @@ struct rtw_chip_info rtw8821c_hw_spec = {
.rx_ldpc = false,
.pwr_track_tbl = &rtw8821c_rtw_pwr_track_tbl,
.iqk_threshold = 8,
.bfer_su_max_num = 2,
.bfer_mu_max_num = 1,
};
EXPORT_SYMBOL(rtw8821c_hw_spec);