[PATCH v4 10/12] wifi: ath12k: Modify set and get antenna mac ops for single wiphy

Rameshkumar Sundaram
2024-03-12T13:56:40Z

From: Sriram R <quic_srirrama@quicinc.com>

As multiple radios are combined into a single wiphy, and
the current infrastructure supports only set/get antenna
for the wiphy, the max Tx/Rx antenna capability is advertised
during wiphy register.
Hence, When antenna set/get is received we adjust the set/get
based on max radio capability and set/get antenna accordingly.

Multi radio capability needs to introduced with interface
combination changes to support single wiphy model in cfg80211
which would help extend the wiphy specific get/set configs similar
to this to per hw level.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Sriram R <quic_srirrama@quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess@quicinc.com>
---
drivers/net/wireless/ath/ath12k/mac.c | 39 ++++++++++++++++++---------
1 file changed, 26 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 29c68aa2d30a..0934abc7995f 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -5183,6 +5183,13 @@ static int __ath12k_set_antenna(struct ath12k *ar, u32 tx_ant, u32 rx_ant)
if (ath12k_check_chain_mask(ar, rx_ant, false))
return -EINVAL;

+ /* Since we advertised the max cap of all radios combined during wiphy
+ * registration, ensure we don't set the antenna config higher than the
+ * limits
+ */
+ tx_ant = min_t(u32, tx_ant, ar->pdev->cap.tx_chain_mask);
+ rx_ant = min_t(u32, rx_ant, ar->pdev->cap.rx_chain_mask);
+
ar->cfg_tx_chainmask = tx_ant;
ar->cfg_rx_chainmask = rx_ant;

@@ -6489,16 +6496,19 @@ static void ath12k_mac_op_configure_filter(struct ieee80211_hw *hw,
static int ath12k_mac_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
{
struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
+ int antennas_rx = 0, antennas_tx = 0;
struct ath12k *ar;
+ int i;

- ar = ath12k_ah_to_ar(ah, 0);
-
- mutex_lock(&ar->conf_mutex);
-
- *tx_ant = ar->cfg_tx_chainmask;
- *rx_ant = ar->cfg_rx_chainmask;
+ for_each_ar(i, ah, ar) {
+ mutex_lock(&ar->conf_mutex);
+ antennas_rx = max_t(u32, antennas_rx, ar->cfg_rx_chainmask);
+ antennas_tx = max_t(u32, antennas_tx, ar->cfg_tx_chainmask);
+ mutex_unlock(&ar->conf_mutex);
+ }

- mutex_unlock(&ar->conf_mutex);
+ *tx_ant = antennas_tx;
+ *rx_ant = antennas_rx;

return 0;
}
@@ -6507,13 +6517,16 @@ static int ath12k_mac_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx
{
struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
struct ath12k *ar;
- int ret;
-
- ar = ath12k_ah_to_ar(ah, 0);
+ int ret = 0;
+ int i;

- mutex_lock(&ar->conf_mutex);
- ret = __ath12k_set_antenna(ar, tx_ant, rx_ant);
- mutex_unlock(&ar->conf_mutex);
+ for_each_ar(i, ah, ar) {
+ mutex_lock(&ar->conf_mutex);
+ ret = __ath12k_set_antenna(ar, tx_ant, rx_ant);
+ mutex_unlock(&ar->conf_mutex);
+ if (ret)
+ break;
+ }

return ret;
}
--
2.25.1