From: Shahar S Matityahu <shahar.s.matityahu@xxxxxxxxx>
Some devices require longer time to stabilize the power and XTAL.
This is especially true for devices integrated in the SoC. Add
support for a new firmware API that allows the driver to set the
latency value accordingly.
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
.../wireless/intel/iwlwifi/fw/api/commands.h | 9 +-
.../net/wireless/intel/iwlwifi/fw/api/soc.h | 83 +++++++++++++++++++
drivers/net/wireless/intel/iwlwifi/fw/file.h | 11 ++-
.../net/wireless/intel/iwlwifi/mvm/fw-api.h | 1 +
drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 32 ++++++-
5 files changed, 124 insertions(+), 12 deletions(-)
create mode 100644 drivers/net/wireless/intel/iwlwifi/fw/api/soc.h
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
index 22dff2c92d4f..4f46f3ed8794 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/commands.h
@@ -5,9 +5,9 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2012 - 2014, 2020 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -27,9 +27,9 @@
*
* BSD LICENSE
*
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2012 - 2014, 2020 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -646,6 +646,11 @@ enum iwl_system_subcmd_ids {
*/
SHARED_MEM_CFG_CMD = 0x0,
+ /**
+ * @SOC_CONFIGURATION_CMD: &struct iwl_soc_configuration_cmd
+ */
+ SOC_CONFIGURATION_CMD = 0x01,
+
/**
* @INIT_EXTENDED_CFG_CMD: &struct iwl_init_extended_cfg_cmd
*/
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/soc.h b/drivers/net/wireless/intel/iwlwifi/fw/api/soc.h
new file mode 100644
index 000000000000..5d1fb98fe667
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/soc.h
@@ -0,0 +1,83 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <linuxwifi@xxxxxxxxx>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#ifndef __iwl_fw_api_soc_h__
+#define __iwl_fw_api_soc_h__
+
+/* type of devices for defining SOC latency */
+enum iwl_soc_device_types {
+ SOC_CONFIG_CMD_INTEGRATED = 0x0,
+ SOC_CONFIG_CMD_DISCRETE = 0x1,
+};
+
+/**
+ * struct iwl_soc_configuration_cmd - Set device stabilization latency
+ *
+ * @device_type: the device type as defined in &enum iwl_soc_device_types
+ * @soc_latency: time for SOC to ensure stable power & XTAL
+ */
+struct iwl_soc_configuration_cmd {
+ __le32 device_type;
+ __le32 soc_latency;
+} __packed; /* SOC_CONFIGURATION_CMD_S_VER_1 */
+
+#endif /* __iwl_fw_api_soc_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index 1554f5fdd483..35f42e529a6d 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -5,11 +5,9 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
- * Copyright(c) 2019 Intel Corporation
+ * Copyright(c) 2008 - 2014, 2018 - 2020 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -29,11 +27,9 @@
*
* BSD LICENSE
*
- * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 Intel Corporation
- * Copyright(c) 2019 Intel Corporation
+ * Copyright(c) 2008 - 2014, 2018 - 2020 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -369,6 +365,8 @@ typedef unsigned int __bitwise iwl_ucode_tlv_capa_t;
* is supported.
* @IWL_UCODE_TLV_CAPA_BT_COEX_RRC: supports BT Coex RRC
* @IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT: supports gscan (no longer used)
+ * @IWL_UCODE_TLV_CAPA_SOC_LATENCY_SUPPORT: the firmware supports setting
+ * stabilization latency for SoCs.
* @IWL_UCODE_TLV_CAPA_STA_PM_NOTIF: firmware will send STA PM notification
* @IWL_UCODE_TLV_CAPA_TLC_OFFLOAD: firmware implements rate scaling algorithm
* @IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA: firmware implements quota related
@@ -437,6 +435,7 @@ enum iwl_ucode_tlv_capa {
IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT = (__force iwl_ucode_tlv_capa_t)31,
/* set 1 */
+ IWL_UCODE_TLV_CAPA_SOC_LATENCY_SUPPORT = (__force iwl_ucode_tlv_capa_t)37,
IWL_UCODE_TLV_CAPA_STA_PM_NOTIF = (__force iwl_ucode_tlv_capa_t)38,
IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT = (__force iwl_ucode_tlv_capa_t)39,
IWL_UCODE_TLV_CAPA_CDB_SUPPORT = (__force iwl_ucode_tlv_capa_t)40,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h
index e3eb812e0248..05a06f88db6c 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw-api.h
@@ -73,6 +73,7 @@
#include "fw/api/datapath.h"
#include "fw/api/phy.h"
#include "fw/api/config.h"
+#include "fw/api/soc.h"
#include "fw/api/alive.h"
#include "fw/api/binding.h"
#include "fw/api/cmdhdr.h"
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 54c094e88474..1b3a2f52e13f 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -5,10 +5,9 @@
*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -28,10 +27,9 @@
*
* BSD LICENSE
*
- * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -89,6 +87,25 @@ struct iwl_mvm_alive_data {
u32 scd_base_addr;
};
+/* set device type and latency */
+static int iwl_set_soc_latency(struct iwl_mvm *mvm)
+{
+ struct iwl_soc_configuration_cmd cmd;
+ int ret;
+
+ cmd.device_type = (mvm->trans->cfg->integrated) ?
+ cpu_to_le32(SOC_CONFIG_CMD_INTEGRATED) :
+ cpu_to_le32(SOC_CONFIG_CMD_DISCRETE);
+ cmd.soc_latency = cpu_to_le32(mvm->trans->cfg->soc_latency);
+
+ ret = iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(SOC_CONFIGURATION_CMD,
+ SYSTEM_GROUP, 0), 0,
+ sizeof(cmd), &cmd);
+ if (ret)
+ IWL_ERR(mvm, "Failed to set soc latency: %d\n", ret);
+ return ret;
+}
+
static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant)
{
struct iwl_tx_ant_cfg_cmd tx_ant_cmd = {
@@ -1103,6 +1120,13 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
if (ret)
goto error;
+ if (fw_has_capa(&mvm->fw->ucode_capa,
+ IWL_UCODE_TLV_CAPA_SOC_LATENCY_SUPPORT)) {
+ ret = iwl_set_soc_latency(mvm);
+ if (ret)
+ goto error;
+ }
+
/* Init RSS configuration */
if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
ret = iwl_configure_rxq(mvm);
--
2.25.1
