| /* |
| * Copyright (c) 2012-2019 The Linux Foundation. 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 |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /** |
| * DOC: wlan_hdd_nan.c |
| * |
| * WLAN Host Device Driver NAN API implementation |
| */ |
| |
| #include <linux/version.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <net/cfg80211.h> |
| #include <ani_global.h> |
| #include "sme_api.h" |
| #include "wlan_hdd_main.h" |
| #include "wlan_hdd_nan.h" |
| #include "osif_sync.h" |
| #include <qca_vendor.h> |
| #include "cfg_nan_api.h" |
| #include "os_if_nan.h" |
| |
| /** |
| * wlan_hdd_nan_is_supported() - HDD NAN support query function |
| * @hdd_ctx: Pointer to hdd context |
| * |
| * This function is called to determine if NAN is supported by the |
| * driver and by the firmware. |
| * |
| * Return: true if NAN is supported by the driver and firmware |
| */ |
| bool wlan_hdd_nan_is_supported(struct hdd_context *hdd_ctx) |
| { |
| return cfg_nan_get_enable(hdd_ctx->psoc) && |
| sme_is_feature_supported_by_fw(NAN); |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_nan_request() - cfg80211 NAN request handler |
| * @wiphy: driver's wiphy struct |
| * @wdev: wireless device to which the request is targeted |
| * @data: actual request data (netlink-encapsulated) |
| * @data_len: length of @data |
| * |
| * This is called when userspace needs to send a nan request to |
| * firmware. The wlan host driver simply de-encapsulates the |
| * request from the netlink payload and then forwards it to |
| * firmware via SME. |
| * |
| * Return: 0 on success, negative errno on failure |
| */ |
| static int __wlan_hdd_cfg80211_nan_request(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| const void *data, int data_len) |
| { |
| int ret_val; |
| struct hdd_context *hdd_ctx = wiphy_priv(wiphy); |
| |
| hdd_enter_dev(wdev->netdev); |
| |
| ret_val = wlan_hdd_validate_context(hdd_ctx); |
| if (ret_val) |
| return ret_val; |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err_rl("Command not allowed in FTM mode"); |
| return -EPERM; |
| } |
| |
| if (!cfg_nan_get_enable(hdd_ctx->psoc)) { |
| hdd_err_rl("NaN support is not enabled in INI"); |
| return -EPERM; |
| } |
| |
| return os_if_nan_legacy_req(hdd_ctx->psoc, data, data_len); |
| } |
| |
| int wlan_hdd_cfg80211_nan_request(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_cfg80211_nan_request(wiphy, wdev, data, data_len); |
| |
| osif_psoc_sync_op_stop(psoc_sync); |
| |
| return errno; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_nan_ext_request() - cfg80211 NAN extended request handler |
| * @wiphy: driver's wiphy struct |
| * @wdev: wireless device to which the request is targeted |
| * @data: actual request data (netlink-encapsulated) |
| * @data_len: length of @data |
| * |
| * Handles NAN Extended vendor commands, sends the command to NAN component |
| * which parses and forwards the NAN requests. |
| * |
| * Return: 0 on success, negative errno on failure |
| */ |
| static int __wlan_hdd_cfg80211_nan_ext_request(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| const void *data, |
| int data_len) |
| { |
| int ret_val; |
| struct hdd_context *hdd_ctx = wiphy_priv(wiphy); |
| |
| hdd_enter_dev(wdev->netdev); |
| |
| ret_val = wlan_hdd_validate_context(hdd_ctx); |
| if (ret_val) |
| return ret_val; |
| |
| if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) { |
| hdd_err_rl("Command not allowed in FTM mode"); |
| return -EPERM; |
| } |
| |
| if (!wlan_hdd_nan_is_supported(hdd_ctx)) { |
| hdd_err_rl("NAN is not supported"); |
| return -EPERM; |
| } |
| |
| return os_if_process_nan_req(hdd_ctx->psoc, |
| data, data_len); |
| } |
| |
| int wlan_hdd_cfg80211_nan_ext_request(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_cfg80211_nan_ext_request(wiphy, wdev, |
| data, data_len); |
| |
| osif_psoc_sync_op_stop(psoc_sync); |
| |
| return errno; |
| } |