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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6ce1e5c0c2
TX power limits as defined in the OTP assume the worst case scenario in terms of the platform's atenna gain, but most platforms are below that value so they can use more TX power without passing the regulatory limit. If the platform indicates in the BIOS that it indeed has lower gain, and the geographic location allows it, higher TX power can be used. The driver reads the PPAG (Per-Platform Antenna Gain) data from BIOS (if it exists), validates it and sends the appropriate command to the FW. This flow happens once at FW init, in case of suspend/resume there is no need to read again from BIOS as we save those values during init, so just send the PPAG command again to FW. Signed-off-by: Gil Adam <gil.adam@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
169 lines
5.4 KiB
C
169 lines
5.4 KiB
C
/******************************************************************************
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2017 Intel Deutschland GmbH
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* Copyright(c) 2018 - 2019 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* The full GNU General Public License is included in this distribution
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* in the file called COPYING.
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*
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* Contact Information:
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* Intel Linux Wireless <linuxwifi@intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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* BSD LICENSE
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*
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* Copyright(c) 2017 Intel Deutschland GmbH
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* Copyright(c) 2018 - 2019 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*****************************************************************************/
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#ifndef __iwl_fw_acpi__
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#define __iwl_fw_acpi__
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#include <linux/acpi.h>
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#define ACPI_WRDS_METHOD "WRDS"
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#define ACPI_EWRD_METHOD "EWRD"
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#define ACPI_WGDS_METHOD "WGDS"
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#define ACPI_WRDD_METHOD "WRDD"
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#define ACPI_SPLC_METHOD "SPLC"
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#define ACPI_ECKV_METHOD "ECKV"
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#define ACPI_PPAG_METHOD "PPAG"
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#define ACPI_WIFI_DOMAIN (0x07)
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#define ACPI_SAR_TABLE_SIZE 10
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#define ACPI_SAR_PROFILE_NUM 4
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#define ACPI_GEO_TABLE_SIZE 6
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#define ACPI_NUM_GEO_PROFILES 3
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#define ACPI_GEO_PER_CHAIN_SIZE 3
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#define ACPI_SAR_NUM_CHAIN_LIMITS 2
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#define ACPI_SAR_NUM_SUB_BANDS 5
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#define ACPI_WRDS_WIFI_DATA_SIZE (ACPI_SAR_TABLE_SIZE + 2)
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#define ACPI_EWRD_WIFI_DATA_SIZE ((ACPI_SAR_PROFILE_NUM - 1) * \
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ACPI_SAR_TABLE_SIZE + 3)
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#define ACPI_WGDS_WIFI_DATA_SIZE 19
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#define ACPI_WRDD_WIFI_DATA_SIZE 2
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#define ACPI_SPLC_WIFI_DATA_SIZE 2
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#define ACPI_ECKV_WIFI_DATA_SIZE 2
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#define ACPI_WGDS_NUM_BANDS 2
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#define ACPI_WGDS_TABLE_SIZE 3
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#define ACPI_PPAG_NUM_CHAINS 2
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#define ACPI_PPAG_NUM_SUB_BANDS 5
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#define ACPI_PPAG_WIFI_DATA_SIZE ((ACPI_PPAG_NUM_CHAINS * \
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ACPI_PPAG_NUM_SUB_BANDS) + 3)
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/* PPAG gain value bounds in 1/8 dBm */
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#define ACPI_PPAG_MIN_LB -16
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#define ACPI_PPAG_MAX_LB 24
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#define ACPI_PPAG_MIN_HB -16
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#define ACPI_PPAG_MAX_HB 40
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#ifdef CONFIG_ACPI
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void *iwl_acpi_get_object(struct device *dev, acpi_string method);
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union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
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union acpi_object *data,
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int data_size, int *tbl_rev);
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/**
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* iwl_acpi_get_mcc - read MCC from ACPI, if available
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*
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* @dev: the struct device
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* @mcc: output buffer (3 bytes) that will get the MCC
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*
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* This function tries to read the current MCC from ACPI if available.
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*/
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int iwl_acpi_get_mcc(struct device *dev, char *mcc);
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u64 iwl_acpi_get_pwr_limit(struct device *dev);
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/*
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* iwl_acpi_get_eckv - read external clock validation from ACPI, if available
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*
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* @dev: the struct device
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* @extl_clk: output var (2 bytes) that will get the clk indication.
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*
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* This function tries to read the external clock indication
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* from ACPI if available.
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*/
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int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk);
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#else /* CONFIG_ACPI */
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static inline void *iwl_acpi_get_object(struct device *dev, acpi_string method)
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{
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return ERR_PTR(-ENOENT);
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}
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static inline union acpi_object *iwl_acpi_get_wifi_pkg(struct device *dev,
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union acpi_object *data,
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int data_size,
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int *tbl_rev)
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{
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return ERR_PTR(-ENOENT);
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}
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static inline int iwl_acpi_get_mcc(struct device *dev, char *mcc)
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{
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return -ENOENT;
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}
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static inline u64 iwl_acpi_get_pwr_limit(struct device *dev)
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{
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return 0;
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}
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static inline int iwl_acpi_get_eckv(struct device *dev, u32 *extl_clk)
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{
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return -ENOENT;
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}
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#endif /* CONFIG_ACPI */
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#endif /* __iwl_fw_acpi__ */
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