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ath10k: implement offset_tsf ieee80211_op

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Current set_tsf is implemented in terms of TSF_INCREMENT
only. Instead support new WMI command TSF_DECREMENT and
export these through offset_tsf. Advantage is we get
more accurate TSF adjustments, and don't calculate wrong
offset in case absolute TSF was calculated from rx_mactime
(actual TSF).

The new WMI command is available in firmware
10.4-3.2.1-00033 for QCA4019 chips. Old drivers on new
firmware or vice versa shouldn't  be a problem since
get/set tsf logic was already broken.

Signed-off-by: Thomas Pedersen <twp@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Pedersen, Thomas
2016-09-28 16:56:29 -07:00
committed by Kalle Valo
parent ff32eeb86a
commit 973324fff1
3 changed files with 34 additions and 0 deletions
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25
drivers/net/wireless/ath/ath10k/mac.c
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@@ -7012,6 +7012,30 @@ static void ath10k_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
ath10k_warn(ar, "failed to set tsf offset: %d\n", ret);
}
static void ath10k_offset_tsf(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, s64 tsf_offset)
{
struct ath10k *ar = hw->priv;
struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
u32 offset, vdev_param;
int ret;
if (tsf_offset < 0) {
vdev_param = ar->wmi.vdev_param->dec_tsf;
offset = -tsf_offset;
} else {
vdev_param = ar->wmi.vdev_param->inc_tsf;
offset = tsf_offset;
}
ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
vdev_param, offset);
if (ret && ret != -EOPNOTSUPP)
ath10k_warn(ar, "failed to set tsf offset %d cmd %d: %d\n",
offset, vdev_param, ret);
}
static int ath10k_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_ampdu_params *params)
@@ -7476,6 +7500,7 @@ static const struct ieee80211_ops ath10k_ops = {
.sta_rc_update = ath10k_sta_rc_update,
.get_tsf = ath10k_get_tsf,
.set_tsf = ath10k_set_tsf,
.offset_tsf = ath10k_offset_tsf,
.ampdu_action = ath10k_ampdu_action,
.get_et_sset_count = ath10k_debug_get_et_sset_count,
.get_et_stats = ath10k_debug_get_et_stats,