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qcacld-3.0: Add support to advertise SAR version to userspace

Bladeren bron 
Currently there is no support to advertise SAR
version to user space for new QCA vendor command
QCA_NL80211_VENDOR_SUBCMD_GET_SAR_CAPABILITY.

Add support for the new vendor command to send
SAR version to user space.

Change-Id: I6890da31d2e60c1a363fd8fbc8d0d0bddd29ef74
CRs-Fixed: 3273690
This commit is contained in:
Asutosh Mohapatra
2022-08-23 11:18:22 +05:30
gecommit door Madan Koyyalamudi
bovenliggende 55cc762b76
commit daaf54b443
2 gewijzigde bestanden met toevoegingen van 169 en 0 verwijderingen
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145
core/hdd/src/wlan_hdd_sar_limits.c
Bestand weergeven

@@ -306,6 +306,120 @@ cleanup:
return ret;
}
/**
* hdd_to_nl_sar_version - Map SAR version enum from hdd to nl
* @cur_sar_version - Current SAR version stored in hdd_ctx
*
* This function is used to map SAR version enum stored in hdd_ctx to
* nl
*
* Return - NL SAR version
*/
static u32 hdd_to_nl_sar_version(enum sar_version hdd_sar_version)
{
switch (hdd_sar_version) {
case (SAR_VERSION_1):
return QCA_WLAN_VENDOR_SAR_VERSION_1;
case (SAR_VERSION_2):
return QCA_WLAN_VENDOR_SAR_VERSION_2;
default:
return QCA_WLAN_VENDOR_SAR_VERSION_INVALID;
}
}
/**
* hdd_sar_fill_capability_response - Fill SAR capability
* @skb - Pointer to socket buffer
* @hdd_ctx - pointer to hdd context
*
* This function fills SAR Capability in the socket buffer
*
* Return - 0 on success, negative errno on failure
*/
static int hdd_sar_fill_capability_response(struct sk_buff *skb,
struct hdd_context *hdd_ctx)
{
int errno = 0;
u32 attr;
u32 value;
attr = QCA_WLAN_VENDOR_ATTR_SAR_CAPABILITY_VERSION;
value = hdd_to_nl_sar_version(hdd_ctx->sar_version);
errno = nla_put_u32(skb, attr, value);
return errno;
}
/**
* hdd_sar_send_capability_response - Send SAR capability response
* @wiphy: Pointer to wireless phy
* @hdd_ctx: Pointer to hdd context
*
* This function sends SAR capability.
*/
static int hdd_sar_send_capability_response(struct wiphy *wiphy,
struct hdd_context *hdd_ctx)
{
uint32_t len;
struct sk_buff *skb;
int errno;
len = NLMSG_HDRLEN;
/* QCA_WLAN_VENDOR_ATTR_SAR_CAPABILITY_VERSION */
len += NLA_HDRLEN + sizeof(u32);
skb = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, len);
if (!skb) {
hdd_err("cfg80211_vendor_cmd_alloc_reply_skb failed");
return -ENOMEM;
}
errno = hdd_sar_fill_capability_response(skb, hdd_ctx);
if (errno) {
kfree_skb(skb);
return errno;
}
return cfg80211_vendor_cmd_reply(skb);
}
/**
* __wlan_hdd_get_sar_capability - Get SAR Capabilities
* @wiphy: Pointer to wireless phy
* @wdev: Pointer to wireless device
* @data: Pointer to data
* @data_len: Length of @data
*
* This function is used to retrieve SAR Version .
*
* Return: 0 on success, negative errno on failure
*/
static int __wlan_hdd_get_sar_capability(struct wiphy *wiphy,
struct wireless_dev *wdev,
const void *data,
int data_len)
{
struct hdd_context *hdd_ctx = wiphy_priv(wiphy);
int ret;
hdd_enter();
if (hdd_get_conparam() == QDF_GLOBAL_FTM_MODE ||
hdd_get_conparam() == QDF_GLOBAL_MONITOR_MODE) {
hdd_err("Command not allowed in FTM/MONITOR mode");
return -EPERM;
}
if (wlan_hdd_validate_context(hdd_ctx))
return -EINVAL;
ret = hdd_sar_send_capability_response(wiphy, hdd_ctx);
return ret;
}
#define SAR_LIMITS_SAR_ENABLE QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SAR_ENABLE
#define SAR_LIMITS_NUM_SPECS QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_NUM_SPECS
#define SAR_LIMITS_SPEC QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_SPEC
@@ -824,6 +938,37 @@ int wlan_hdd_cfg80211_get_sar_power_limits(struct wiphy *wiphy,
return errno;
}
/**
* wlan_hdd_cfg80211_get_sar_capability() - Get SAR capability
* @wiphy: Pointer to wireless phy
* @wdev: Pointer to wireless device
* @data: Pointer to data
* @data_len: Length of @data
*
* Wrapper function of __wlan_hdd_get_sar_capability()
*
* Return: 0 on success, negative errno on failure
*/
int wlan_hdd_cfg80211_get_sar_capability(struct wiphy *wiphy,
struct wireless_dev *wdev,
const void *data,
int data_len)
{
struct osif_psoc_sync *psoc_sync;
int errno;
errno = osif_psoc_sync_op_start(wiphy_dev(wiphy), &psoc_sync);
if (errno)
return errno;
errno = __wlan_hdd_get_sar_capability(wiphy, wdev, data, data_len);
osif_psoc_sync_op_stop(psoc_sync);
return errno;
}
#ifdef SAR_SAFETY_FEATURE
void hdd_disable_sar(struct hdd_context *hdd_ctx)
{

24
core/hdd/src/wlan_hdd_sar_limits.h
Bestand weergeven

@@ -1,5 +1,6 @@
/*
* Copyright (c) 2012-2020 The Linux Foundation. All rights reserved.
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -178,7 +179,22 @@ int wlan_hdd_cfg80211_set_sar_power_limits(struct wiphy *wiphy,
struct wireless_dev *wdev,
const void *data,
int data_len);
/**
* wlan_hdd_cfg80211_get_sar_capability() - Get SAR capability
* @wiphy: Pointer to wireless phy
* @wdev: Pointer to wireless device
* @data: Pointer to data
* @data_len: Length of @data
*
* Wrapper function of __wlan_hdd_get_sar_capability()
*
* Return: 0 on success, negative errno on failure
*/
int wlan_hdd_cfg80211_get_sar_capability(struct wiphy *wiphy,
struct wireless_dev *wdev,
const void *data,
int data_len);
/**
* hdd_store_sar_config() - Store SAR config in HDD context
* @hdd_ctx: The HDD context
@@ -225,6 +241,14 @@ wlan_hdd_sar_limits_policy[QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX + 1];
.doit = wlan_hdd_cfg80211_set_sar_power_limits, \
vendor_command_policy(wlan_hdd_sar_limits_policy, \
QCA_WLAN_VENDOR_ATTR_SAR_LIMITS_MAX) \
}, \
{ \
.info.vendor_id = QCA_NL80211_VENDOR_ID, \
.info.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_SAR_CAPABILITY, \
.flags = WIPHY_VENDOR_CMD_NEED_WDEV | \
WIPHY_VENDOR_CMD_NEED_RUNNING, \
.doit = wlan_hdd_cfg80211_get_sar_capability, \
vendor_command_policy(VENDOR_CMD_RAW_DATA, 0) \
},
#else /* FEATURE_SAR_LIMITS */
#define FEATURE_SAR_LIMITS_VENDOR_COMMANDS