21254908cb
RF Interference Mitigation is a new feature targeted to handle the problem of interference between DDR memory and WiFi. The role of the driver is to configure FW with the table holding a mapping between problematic channels/bands and the corresponding frequencies. This patch adds RFI infrastructure and adds two debugfs hooks: - send RFI configuration command (currently with a default table) which will reset feature in the FW - read the table, used by the FW (which can be a subset of the table that driver sent). Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20210210171218.2cea55a09bc7.I634b79795abad499ce442631d6672ffef8fc6d41@changeid Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
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/*
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* Copyright (C) 2020 Intel Corporation
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*/
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#ifndef __iwl_fw_api_rfi_h__
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#define __iwl_fw_api_rfi_h__
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#define IWL_RFI_LUT_ENTRY_CHANNELS_NUM 15
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#define IWL_RFI_LUT_SIZE 24
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#define IWL_RFI_LUT_INSTALLED_SIZE 4
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/**
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* struct iwl_rfi_lut_entry - an entry in the RFI frequency LUT.
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*
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* @freq: frequency
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* @channels: channels that can be interfered at frequency freq (at most 15)
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* @bands: the corresponding bands
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*/
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struct iwl_rfi_lut_entry {
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__le16 freq;
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u8 channels[IWL_RFI_LUT_ENTRY_CHANNELS_NUM];
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u8 bands[IWL_RFI_LUT_ENTRY_CHANNELS_NUM];
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} __packed;
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/**
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* struct iwl_rfi_config_cmd - RFI configuration table
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*
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* @entry: a table can have 24 frequency/channel mappings
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* @oem: specifies if this is the default table or set by OEM
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*/
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struct iwl_rfi_config_cmd {
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struct iwl_rfi_lut_entry table[IWL_RFI_LUT_SIZE];
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u8 oem;
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u8 reserved[3];
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} __packed; /* RFI_CONFIG_CMD_API_S_VER_1 */
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/**
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* iwl_rfi_freq_table_status - status of the frequency table query
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* @RFI_FREQ_TABLE_OK: can be used
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* @RFI_FREQ_TABLE_DVFS_NOT_READY: DVFS is not ready yet, should try later
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* @RFI_FREQ_TABLE_DISABLED: the feature is disabled in FW
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*/
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enum iwl_rfi_freq_table_status {
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RFI_FREQ_TABLE_OK,
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RFI_FREQ_TABLE_DVFS_NOT_READY,
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RFI_FREQ_TABLE_DISABLED,
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};
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/**
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* struct iwl_rfi_freq_table_resp_cmd - get the rfi freq table used by FW
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*
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* @table: table used by FW
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* @status: see &iwl_rfi_freq_table_status
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*/
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struct iwl_rfi_freq_table_resp_cmd {
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struct iwl_rfi_lut_entry table[IWL_RFI_LUT_INSTALLED_SIZE];
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__le32 status;
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} __packed; /* RFI_CONFIG_CMD_API_S_VER_1 */
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#endif /* __iwl_fw_api_rfi_h__ */
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