iwlwifi: mvm: allow to force reduced tx power from debugfs
This will be useful during tests done on the physical layer.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
index 19ecade..9194709 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c
@@ -249,9 +249,10 @@
struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
pos += scnprintf(buf+pos, bufsz-pos,
- "ap_sta_id %d - reduced Tx power %d\n",
+ "ap_sta_id %d - reduced Tx power %d force %d\n",
ap_sta_id,
- mvm_sta->bt_reduced_txpower);
+ mvm_sta->bt_reduced_txpower,
+ mvm_sta->bt_reduced_txpower_dbg);
}
}
@@ -269,6 +270,36 @@
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
+static ssize_t iwl_dbgfs_reduced_txp_write(struct ieee80211_vif *vif,
+ char *buf, size_t count,
+ loff_t *ppos)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mvm *mvm = mvmvif->mvm;
+ struct iwl_mvm_sta *mvmsta;
+ bool reduced_tx_power;
+ int ret;
+
+ if (mvmvif->ap_sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
+ return -ENOTCONN;
+
+ if (strtobool(buf, &reduced_tx_power) != 0)
+ return -EINVAL;
+
+ mutex_lock(&mvm->mutex);
+
+ mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
+ mvmsta->bt_reduced_txpower_dbg = false;
+ ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
+ reduced_tx_power);
+ if (!ret)
+ mvmsta->bt_reduced_txpower_dbg = true;
+
+ mutex_unlock(&mvm->mutex);
+
+ return ret ? : count;
+}
+
static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
enum iwl_dbgfs_bf_mask param, int value)
{
@@ -509,6 +540,7 @@
MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10);
+MVM_DEBUGFS_WRITE_FILE_OPS(reduced_txp, 10);
void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
{
@@ -539,8 +571,8 @@
MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR |
S_IRUSR);
- MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir,
- S_IRUSR);
+ MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR);
+ MVM_DEBUGFS_ADD_FILE_VIF(reduced_txp, mvmvif->dbgfs_dir, S_IWUSR);
MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir,
S_IRUSR | S_IWUSR);