[PATCH 01/18] iwlwifi: mvm: ftm: make common calib signed

[Luca Coelho <luca@xxxxxxxxx>]

From: Alex Malamud <alex.malamud@xxxxxxxxx>

The common calib value should be signed, so use int instead of u16.

Signed-off-by: Avraham Stern <avraham.stern@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
 drivers/net/wireless/intel/iwlwifi/fw/file.h  |  3 +-
 .../net/wireless/intel/iwlwifi/mvm/debugfs.c  | 37 +++++++++++++++++++
 drivers/net/wireless/intel/iwlwifi/mvm/fw.c   |  3 +-
 3 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index ea2b3d77f848..418064ced337 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -441,9 +441,10 @@ enum iwl_ucode_tlv_capa {
 	IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA                = (__force iwl_ucode_tlv_capa_t)44,
 	IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2		= (__force iwl_ucode_tlv_capa_t)45,
 	IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD		= (__force iwl_ucode_tlv_capa_t)46,
-	IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS		= (__force iwl_ucode_tlv_capa_t)48,
 	IWL_UCODE_TLV_CAPA_FTM_CALIBRATED		= (__force iwl_ucode_tlv_capa_t)47,
+	IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS		= (__force iwl_ucode_tlv_capa_t)48,
 	IWL_UCODE_TLV_CAPA_CS_MODIFY			= (__force iwl_ucode_tlv_capa_t)49,
+	IWL_UCODE_TLV_CAPA_SET_LTR_GEN2			= (__force iwl_ucode_tlv_capa_t)50,
 
 	/* set 2 */
 	IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE		= (__force iwl_ucode_tlv_capa_t)64,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 6d67d3da31e0..994a4ba07204 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1758,6 +1758,38 @@ iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
+static ssize_t
+iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
+			   char *buf, size_t count, loff_t *ppos)
+{
+	int ret;
+	struct iwl_ltr_config_cmd ltr_config = {0};
+
+	if (!iwl_mvm_firmware_running(mvm))
+		return -EIO;
+
+	if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
+		   &ltr_config.flags,
+		   &ltr_config.static_long,
+		   &ltr_config.static_short,
+		   &ltr_config.ltr_cfg_values[0],
+		   &ltr_config.ltr_cfg_values[1],
+		   &ltr_config.ltr_cfg_values[2],
+		   &ltr_config.ltr_cfg_values[3]) != 7) {
+		return -EINVAL;
+	}
+
+	mutex_lock(&mvm->mutex);
+	ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
+				   &ltr_config);
+	mutex_unlock(&mvm->mutex);
+
+	if (ret)
+		IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
+
+	return ret ?: count;
+}
+
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
 
 /* Device wide debugfs entries */
@@ -1806,6 +1838,8 @@ MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
 
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
 
+MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
+
 static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
 				  size_t count, loff_t *ppos)
 {
@@ -1993,6 +2027,9 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 #endif
 	MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
 
+	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
+		MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
+
 	debugfs_create_bool("enable_scan_iteration_notif", 0600,
 			    mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
 	debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 251e7c235aaa..bb2aec9c6738 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1302,7 +1302,8 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	iwl_mvm_tt_tx_backoff(mvm, 0);
 #endif
 
-	WARN_ON(iwl_mvm_config_ltr(mvm));
+	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
+		WARN_ON(iwl_mvm_config_ltr(mvm));
 
 	ret = iwl_mvm_power_update_device(mvm);
 	if (ret)
-- 
2.23.0.rc1