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iwlwifi: mvm: add support for range request command version 9 

This version adds support for per responder calibrations.
Currently the driver will use a single value for all responders
and bandwidths.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200424182644.5ce74a87009c.I9079332b21eef490bbdbf8d7d66e35d7d0c7882b@changeid
This commit is contained in:
Avraham Stern 2020-04-24 18:48:12 +03:00 committed by Luca Coelho
parent 0c9e025e79
commit f092e4e35b
2 changed files with 155 additions and 22 deletions
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110
drivers/net/wireless/intel/iwlwifi/fw/api/location.h
View File

@ -6,8 +6,7 @@
* GPL LICENSE SUMMARY
*
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
* Copyright (C) 2018 Intel Corporation
* Copyright (C) 2019 Intel Corporation
* Copyright (C) 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
@ -28,8 +27,7 @@
* BSD LICENSE
*
* Copyright(c) 2015 - 2017 Intel Deutschland GmbH
* Copyright (C) 2018 Intel Corporation
* Copyright (C) 2019 Intel Corporation
* Copyright (C) 2018 - 2020 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -147,6 +145,7 @@ struct iwl_tof_config_cmd {
* @IWL_TOF_BW_40: 40 MHz
* @IWL_TOF_BW_80: 80 MHz
* @IWL_TOF_BW_160: 160 MHz
* @IWL_TOF_BW_NUM: number of tof bandwidths
*/
enum iwl_tof_bandwidth {
IWL_TOF_BW_20_LEGACY,
@ -154,6 +153,7 @@ enum iwl_tof_bandwidth {
IWL_TOF_BW_40,
IWL_TOF_BW_80,
IWL_TOF_BW_160,
IWL_TOF_BW_NUM,
}; /* LOCAT_BW_TYPE_E */
/*
@ -430,6 +430,9 @@ struct iwl_tof_range_req_ap_entry_v2 {
* @IWL_INITIATOR_AP_FLAGS_NON_TB: Use non trigger based flow
* @IWL_INITIATOR_AP_FLAGS_TB: Use trigger based flow
* @IWL_INITIATOR_AP_FLAGS_SECURED: request secured measurement
* @IWL_INITIATOR_AP_FLAGS_LMR_FEEDBACK: Send LMR feedback
* @IWL_INITIATOR_AP_FLAGS_USE_CALIB: Use calibration values from the request
* instead of fw internal values.
*/
enum iwl_initiator_ap_flags {
IWL_INITIATOR_AP_FLAGS_ASAP = BIT(1),
@ -442,6 +445,8 @@ enum iwl_initiator_ap_flags {
IWL_INITIATOR_AP_FLAGS_NON_TB = BIT(9),
IWL_INITIATOR_AP_FLAGS_TB = BIT(10),
IWL_INITIATOR_AP_FLAGS_SECURED = BIT(11),
IWL_INITIATOR_AP_FLAGS_LMR_FEEDBACK = BIT(12),
IWL_INITIATOR_AP_FLAGS_USE_CALIB = BIT(13),
};
/**
@ -508,7 +513,7 @@ enum iwl_location_bw {
#define LOCATION_BW_POS 4
/**
* struct iwl_tof_range_req_ap_entry - AP configuration parameters
* struct iwl_tof_range_req_ap_entry_v4 - AP configuration parameters
* @initiator_ap_flags: see &enum iwl_initiator_ap_flags.
* @channel_num: AP Channel number
* @format_bw: bits 0 - 3: &enum iwl_location_frame_format.
@ -527,7 +532,7 @@ enum iwl_location_bw {
* @hltk: HLTK to be used for secured 11az measurement
* @tk: TK to be used for secured 11az measurement
*/
struct iwl_tof_range_req_ap_entry {
struct iwl_tof_range_req_ap_entry_v4 {
__le32 initiator_ap_flags;
u8 channel_num;
u8 format_bw;
@ -542,6 +547,65 @@ struct iwl_tof_range_req_ap_entry {
u8 tk[TK_11AZ_LEN];
} __packed; /* LOCATION_RANGE_REQ_AP_ENTRY_CMD_API_S_VER_4 */
/**
* enum iwl_location_cipher - location cipher selection
* @IWL_LOCATION_CIPHER_CCMP_128: CCMP 128
* @IWL_LOCATION_CIPHER_CCMP_256: CCMP 256
* @IWL_LOCATION_CIPHER_GCMP_128: GCMP 128
* @IWL_LOCATION_CIPHER_GCMP_256: GCMP 256
*/
enum iwl_location_cipher {
IWL_LOCATION_CIPHER_CCMP_128,
IWL_LOCATION_CIPHER_CCMP_256,
IWL_LOCATION_CIPHER_GCMP_128,
IWL_LOCATION_CIPHER_GCMP_256,
};
/**
* struct iwl_tof_range_req_ap_entry - AP configuration parameters
* @initiator_ap_flags: see &enum iwl_initiator_ap_flags.
* @channel_num: AP Channel number
* @format_bw: bits 0 - 3: &enum iwl_location_frame_format.
* bits 4 - 7: &enum iwl_location_bw.
* @ctrl_ch_position: Coding of the control channel position relative to the
* center frequency, see iwl_mvm_get_ctrl_pos().
* @ftmr_max_retries: Max number of retries to send the FTMR in case of no
* reply from the AP.
* @bssid: AP's BSSID
* @burst_period: Recommended value to be sent to the AP. Measurement
* periodicity In units of 100ms. ignored if num_of_bursts_exp = 0
* @samples_per_burst: the number of FTMs pairs in single Burst (1-31);
* @num_of_bursts: Recommended value to be sent to the AP. 2s Exponent of
* the number of measurement iterations (min 2^0 = 1, max 2^14)
* @reserved: For alignment and future use
* @cipher: pairwise cipher suite for secured measurement.
* &enum iwl_location_cipher.
* @hltk: HLTK to be used for secured 11az measurement
* @tk: TK to be used for secured 11az measurement
* @calib: An array of calibration values per FTM rx bandwidth.
* If &IWL_INITIATOR_AP_FLAGS_USE_CALIB is set, the fw will use the
* calibration value that corresponds to the rx bandwidth of the FTM
* frame.
* @reserved2: For alignment and future use.
*/
struct iwl_tof_range_req_ap_entry {
__le32 initiator_ap_flags;
u8 channel_num;
u8 format_bw;
u8 ctrl_ch_position;
u8 ftmr_max_retries;
u8 bssid[ETH_ALEN];
__le16 burst_period;
u8 samples_per_burst;
u8 num_of_bursts;
u8 reserved;
u8 cipher;
u8 hltk[HLTK_11AZ_LEN];
u8 tk[TK_11AZ_LEN];
__le16 calib[IWL_TOF_BW_NUM];
__le16 reserved2;
} __packed; /* LOCATION_RANGE_REQ_AP_ENTRY_CMD_API_S_VER_5 */
/**
* enum iwl_tof_response_mode
* @IWL_MVM_TOF_RESPONSE_ASAP: report each AP measurement separately as soon as
@ -676,7 +740,7 @@ struct iwl_tof_range_req_cmd_v7 {
} __packed; /* LOCATION_RANGE_REQ_CMD_API_S_VER_7 */
/**
* struct iwl_tof_range_req_cmd - start measurement cmd
* struct iwl_tof_range_req_cmd_v8 - start measurement cmd
* @initiator_flags: see flags @ iwl_tof_initiator_flags
* @request_id: A Token incremented per request. The same Token will be
* sent back in the range response
@ -693,7 +757,7 @@ struct iwl_tof_range_req_cmd_v7 {
* @specific_calib: The specific calib value to inject to this measurement calc
* @ap: per-AP request data, see &struct iwl_tof_range_req_ap_entry_v2.
*/
struct iwl_tof_range_req_cmd {
struct iwl_tof_range_req_cmd_v8 {
__le32 initiator_flags;
u8 request_id;
u8 num_of_ap;
@ -704,9 +768,37 @@ struct iwl_tof_range_req_cmd {
__le32 tsf_mac_id;
__le16 common_calib;
__le16 specific_calib;
struct iwl_tof_range_req_ap_entry ap[IWL_MVM_TOF_MAX_APS];
struct iwl_tof_range_req_ap_entry_v4 ap[IWL_MVM_TOF_MAX_APS];
} __packed; /* LOCATION_RANGE_REQ_CMD_API_S_VER_8 */
/**
* struct iwl_tof_range_req_cmd - start measurement cmd
* @initiator_flags: see flags @ iwl_tof_initiator_flags
* @request_id: A Token incremented per request. The same Token will be
* sent back in the range response
* @num_of_ap: Number of APs to measure (error if > IWL_MVM_TOF_MAX_APS)
* @range_req_bssid: ranging request BSSID
* @macaddr_mask: Bits set to 0 shall be copied from the MAC address template.
* Bits set to 1 shall be randomized by the UMAC
* @macaddr_template: MAC address template to use for non-randomized bits
* @req_timeout_ms: Requested timeout of the response in units of milliseconds.
* This is the session time for completing the measurement.
* @tsf_mac_id: report the measurement start time for each ap in terms of the
* TSF of this mac id. 0xff to disable TSF reporting.
* @ap: per-AP request data, see &struct iwl_tof_range_req_ap_entry_v2.
*/
struct iwl_tof_range_req_cmd {
__le32 initiator_flags;
u8 request_id;
u8 num_of_ap;
u8 range_req_bssid[ETH_ALEN];
u8 macaddr_mask[ETH_ALEN];
u8 macaddr_template[ETH_ALEN];
__le32 req_timeout_ms;
__le32 tsf_mac_id;
struct iwl_tof_range_req_ap_entry ap[IWL_MVM_TOF_MAX_APS];
} __packed; /* LOCATION_RANGE_REQ_CMD_API_S_VER_9 */
/*
* enum iwl_tof_range_request_status - status of the sent request
* @IWL_TOF_RANGE_REQUEST_STATUS_SUCCESSFUL - FW successfully received the

67
drivers/net/wireless/intel/iwlwifi/mvm/ftm-initiator.c
View File

@ -164,9 +164,10 @@ static void iwl_mvm_ftm_cmd_v5(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
eth_broadcast_addr(cmd->range_req_bssid);
}
static void iwl_mvm_ftm_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
struct iwl_tof_range_req_cmd *cmd,
struct cfg80211_pmsr_request *req)
static void iwl_mvm_ftm_cmd_common(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct iwl_tof_range_req_cmd *cmd,
struct cfg80211_pmsr_request *req)
{
int i;
@ -210,6 +211,13 @@ static void iwl_mvm_ftm_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
cmd->tsf_mac_id = cpu_to_le32(0xff);
}
static void iwl_mvm_ftm_cmd_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
struct iwl_tof_range_req_cmd_v8 *cmd,
struct cfg80211_pmsr_request *req)
{
iwl_mvm_ftm_cmd_common(mvm, vif, (void *)cmd, req);
}
static int
iwl_mvm_ftm_target_chandef_v1(struct iwl_mvm *mvm,
struct cfg80211_pmsr_request_peer *peer,
@ -382,9 +390,10 @@ iwl_mvm_ftm_put_target_v3(struct iwl_mvm *mvm,
return 0;
}
static int iwl_mvm_ftm_put_target_v4(struct iwl_mvm *mvm,
struct cfg80211_pmsr_request_peer *peer,
struct iwl_tof_range_req_ap_entry *target)
static int
iwl_mvm_ftm_put_target(struct iwl_mvm *mvm,
struct cfg80211_pmsr_request_peer *peer,
struct iwl_tof_range_req_ap_entry_v4 *target)
{
int ret;
@ -394,7 +403,7 @@ static int iwl_mvm_ftm_put_target_v4(struct iwl_mvm *mvm,
if (ret)
return ret;
iwl_mvm_ftm_put_target_common(mvm, peer, target);
iwl_mvm_ftm_put_target_common(mvm, peer, (void *)target);
return 0;
}
@ -456,7 +465,7 @@ static int iwl_mvm_ftm_start_v7(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
* Versions 7 and 8 has the same structure except from the responders
* list, so iwl_mvm_ftm_cmd() can be used for version 7 too.
*/
iwl_mvm_ftm_cmd(mvm, vif, (void *)&cmd_v7, req);
iwl_mvm_ftm_cmd_v8(mvm, vif, (void *)&cmd_v7, req);
for (i = 0; i < cmd_v7.num_of_ap; i++) {
struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
@ -471,6 +480,32 @@ static int iwl_mvm_ftm_start_v7(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
static int iwl_mvm_ftm_start_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
struct cfg80211_pmsr_request *req)
{
struct iwl_tof_range_req_cmd_v8 cmd;
struct iwl_host_cmd hcmd = {
.id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0),
.dataflags[0] = IWL_HCMD_DFL_DUP,
.data[0] = &cmd,
.len[0] = sizeof(cmd),
};
u8 i;
int err;
iwl_mvm_ftm_cmd_v8(mvm, vif, (void *)&cmd, req);
for (i = 0; i < cmd.num_of_ap; i++) {
struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
err = iwl_mvm_ftm_put_target(mvm, peer, &cmd.ap[i]);
if (err)
return err;
}
return iwl_mvm_ftm_send_cmd(mvm, &hcmd);
}
static int iwl_mvm_ftm_start_v9(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
struct cfg80211_pmsr_request *req)
{
struct iwl_tof_range_req_cmd cmd;
struct iwl_host_cmd hcmd = {
@ -482,12 +517,12 @@ static int iwl_mvm_ftm_start_v8(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
u8 i;
int err;
iwl_mvm_ftm_cmd(mvm, vif, &cmd, req);
iwl_mvm_ftm_cmd_common(mvm, vif, &cmd, req);
for (i = 0; i < cmd.num_of_ap; i++) {
struct cfg80211_pmsr_request_peer *peer = &req->peers[i];
err = iwl_mvm_ftm_put_target_v4(mvm, peer, &cmd.ap[i]);
err = iwl_mvm_ftm_put_target(mvm, peer, (void *)&cmd.ap[i]);
if (err)
return err;
}
@ -511,11 +546,17 @@ int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LOCATION_GROUP,
TOF_RANGE_REQ_CMD);
if (cmd_ver == 8)
switch (cmd_ver) {
case 9:
err = iwl_mvm_ftm_start_v9(mvm, vif, req);
break;
case 8:
err = iwl_mvm_ftm_start_v8(mvm, vif, req);
else
break;
default:
err = iwl_mvm_ftm_start_v7(mvm, vif, req);
break;
}
} else {
err = iwl_mvm_ftm_start_v5(mvm, vif, req);
}