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ath10k: Enable MU MIMO txbf support for QCA99X0 

This patch enables MU-MIMO transmit beamforming support
for QCA99X0 chipsets.

Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Vivek Natarajan 2015-08-04 10:45:12 +05:30 committed by Kalle Valo
parent 08e75ea84c
commit a48e2cc899
2 changed files with 49 additions and 0 deletions
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44
drivers/net/wireless/ath/ath10k/mac.c
View File

@ -4032,6 +4032,43 @@ static u32 get_nss_from_chainmask(u16 chain_mask)
return 1;
}
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
u32 value = 0;
struct ath10k *ar = arvif->ar;
if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
return 0;
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
value |= SM((ar->num_rf_chains - 1), WMI_TXBF_STS_CAP_OFFSET);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
value |= SM((ar->num_rf_chains - 1), WMI_BF_SOUND_DIM_OFFSET);
if (!value)
return 0;
if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;
if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFER |
WMI_VDEV_PARAM_TXBF_SU_TX_BFER);
if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;
if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFEE |
WMI_VDEV_PARAM_TXBF_SU_TX_BFEE);
return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
ar->wmi.vdev_param->txbf, value);
}
/*
* TODO:
* Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
@ -4258,6 +4295,13 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
}
}
ret = ath10k_mac_set_txbf_conf(arvif);
if (ret) {
ath10k_warn(ar, "failed to set txbf for vdev %d: %d\n",
arvif->vdev_id, ret);
goto err_peer_delete;
}
ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
if (ret) {
ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",

5
drivers/net/wireless/ath/ath10k/wmi.h
View File

@ -4628,6 +4628,11 @@ enum wmi_10_4_vdev_param {
#define WMI_VDEV_PARAM_TXBF_SU_TX_BFER BIT(2)
#define WMI_VDEV_PARAM_TXBF_MU_TX_BFER BIT(3)
#define WMI_TXBF_STS_CAP_OFFSET_LSB 4
#define WMI_TXBF_STS_CAP_OFFSET_MASK 0xf0
#define WMI_BF_SOUND_DIM_OFFSET_LSB 8
#define WMI_BF_SOUND_DIM_OFFSET_MASK 0xf00
/* slot time long */
#define WMI_VDEV_SLOT_TIME_LONG 0x1
/* slot time short */