1*5113495bSYour Name /*
2*5113495bSYour Name * Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
3*5113495bSYour Name * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
4*5113495bSYour Name *
5*5113495bSYour Name * Permission to use, copy, modify, and/or distribute this software for
6*5113495bSYour Name * any purpose with or without fee is hereby granted, provided that the
7*5113495bSYour Name * above copyright notice and this permission notice appear in all
8*5113495bSYour Name * copies.
9*5113495bSYour Name *
10*5113495bSYour Name * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11*5113495bSYour Name * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12*5113495bSYour Name * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13*5113495bSYour Name * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14*5113495bSYour Name * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15*5113495bSYour Name * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16*5113495bSYour Name * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17*5113495bSYour Name * PERFORMANCE OF THIS SOFTWARE.
18*5113495bSYour Name */
19*5113495bSYour Name
20*5113495bSYour Name /**
21*5113495bSYour Name * DOC: wlan_hdd_nan.c
22*5113495bSYour Name *
23*5113495bSYour Name * WLAN Host Device Driver NAN API implementation
24*5113495bSYour Name */
25*5113495bSYour Name
26*5113495bSYour Name #include <linux/version.h>
27*5113495bSYour Name #include <linux/module.h>
28*5113495bSYour Name #include <linux/kernel.h>
29*5113495bSYour Name #include <net/cfg80211.h>
30*5113495bSYour Name #include <ani_global.h>
31*5113495bSYour Name #include "sme_api.h"
32*5113495bSYour Name #include "wlan_hdd_main.h"
33*5113495bSYour Name #include "wlan_hdd_nan.h"
34*5113495bSYour Name #include "osif_sync.h"
35*5113495bSYour Name #include <qca_vendor.h>
36*5113495bSYour Name #include "cfg_nan_api.h"
37*5113495bSYour Name #include "os_if_nan.h"
38*5113495bSYour Name #include "../../core/src/nan_main_i.h"
39*5113495bSYour Name #include "spatial_reuse_api.h"
40*5113495bSYour Name #include "wlan_nan_api.h"
41*5113495bSYour Name #include "spatial_reuse_ucfg_api.h"
42*5113495bSYour Name
43*5113495bSYour Name /**
44*5113495bSYour Name * wlan_hdd_nan_is_supported() - HDD NAN support query function
45*5113495bSYour Name * @hdd_ctx: Pointer to hdd context
46*5113495bSYour Name *
47*5113495bSYour Name * This function is called to determine if NAN is supported by the
48*5113495bSYour Name * driver and by the firmware.
49*5113495bSYour Name *
50*5113495bSYour Name * Return: true if NAN is supported by the driver and firmware
51*5113495bSYour Name */
wlan_hdd_nan_is_supported(struct hdd_context * hdd_ctx)52*5113495bSYour Name bool wlan_hdd_nan_is_supported(struct hdd_context *hdd_ctx)
53*5113495bSYour Name {
54*5113495bSYour Name return cfg_nan_get_enable(hdd_ctx->psoc) &&
55*5113495bSYour Name sme_is_feature_supported_by_fw(NAN);
56*5113495bSYour Name }
57*5113495bSYour Name
58*5113495bSYour Name /**
59*5113495bSYour Name * __wlan_hdd_cfg80211_nan_ext_request() - cfg80211 NAN extended request handler
60*5113495bSYour Name * @wiphy: driver's wiphy struct
61*5113495bSYour Name * @wdev: wireless device to which the request is targeted
62*5113495bSYour Name * @data: actual request data (netlink-encapsulated)
63*5113495bSYour Name * @data_len: length of @data
64*5113495bSYour Name *
65*5113495bSYour Name * Handles NAN Extended vendor commands, sends the command to NAN component
66*5113495bSYour Name * which parses and forwards the NAN requests.
67*5113495bSYour Name *
68*5113495bSYour Name * Return: 0 on success, negative errno on failure
69*5113495bSYour Name */
__wlan_hdd_cfg80211_nan_ext_request(struct wiphy * wiphy,struct wireless_dev * wdev,const void * data,int data_len)70*5113495bSYour Name static int __wlan_hdd_cfg80211_nan_ext_request(struct wiphy *wiphy,
71*5113495bSYour Name struct wireless_dev *wdev,
72*5113495bSYour Name const void *data,
73*5113495bSYour Name int data_len)
74*5113495bSYour Name {
75*5113495bSYour Name int ret_val;
76*5113495bSYour Name struct hdd_context *hdd_ctx = wiphy_priv(wiphy);
77*5113495bSYour Name struct net_device *dev = wdev->netdev;
78*5113495bSYour Name struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
79*5113495bSYour Name
80*5113495bSYour Name hdd_enter_dev(wdev->netdev);
81*5113495bSYour Name
82*5113495bSYour Name ret_val = wlan_hdd_validate_context(hdd_ctx);
83*5113495bSYour Name if (ret_val)
84*5113495bSYour Name return ret_val;
85*5113495bSYour Name
86*5113495bSYour Name if (QDF_GLOBAL_FTM_MODE == hdd_get_conparam()) {
87*5113495bSYour Name hdd_err_rl("Command not allowed in FTM mode");
88*5113495bSYour Name return -EPERM;
89*5113495bSYour Name }
90*5113495bSYour Name
91*5113495bSYour Name if (!wlan_hdd_nan_is_supported(hdd_ctx)) {
92*5113495bSYour Name hdd_debug_rl("NAN is not supported");
93*5113495bSYour Name return -EPERM;
94*5113495bSYour Name }
95*5113495bSYour Name
96*5113495bSYour Name if (hdd_is_connection_in_progress(NULL, NULL)) {
97*5113495bSYour Name hdd_err("Connection refused: conn in progress");
98*5113495bSYour Name return -EAGAIN;
99*5113495bSYour Name }
100*5113495bSYour Name
101*5113495bSYour Name return os_if_process_nan_req(hdd_ctx->pdev, adapter->deflink->vdev_id,
102*5113495bSYour Name data, data_len);
103*5113495bSYour Name }
104*5113495bSYour Name
wlan_hdd_cfg80211_nan_ext_request(struct wiphy * wiphy,struct wireless_dev * wdev,const void * data,int data_len)105*5113495bSYour Name int wlan_hdd_cfg80211_nan_ext_request(struct wiphy *wiphy,
106*5113495bSYour Name struct wireless_dev *wdev,
107*5113495bSYour Name const void *data,
108*5113495bSYour Name int data_len)
109*5113495bSYour Name
110*5113495bSYour Name {
111*5113495bSYour Name struct osif_psoc_sync *psoc_sync;
112*5113495bSYour Name int errno;
113*5113495bSYour Name
114*5113495bSYour Name errno = osif_psoc_sync_op_start(wiphy_dev(wiphy), &psoc_sync);
115*5113495bSYour Name if (errno)
116*5113495bSYour Name return errno;
117*5113495bSYour Name
118*5113495bSYour Name errno = __wlan_hdd_cfg80211_nan_ext_request(wiphy, wdev,
119*5113495bSYour Name data, data_len);
120*5113495bSYour Name
121*5113495bSYour Name osif_psoc_sync_op_stop(psoc_sync);
122*5113495bSYour Name
123*5113495bSYour Name return errno;
124*5113495bSYour Name }
125*5113495bSYour Name
hdd_nan_concurrency_update(void)126*5113495bSYour Name void hdd_nan_concurrency_update(void)
127*5113495bSYour Name {
128*5113495bSYour Name struct hdd_context *hdd_ctx = cds_get_context(QDF_MODULE_ID_HDD);
129*5113495bSYour Name int ret;
130*5113495bSYour Name
131*5113495bSYour Name hdd_enter();
132*5113495bSYour Name ret = wlan_hdd_validate_context(hdd_ctx);
133*5113495bSYour Name if (ret)
134*5113495bSYour Name return;
135*5113495bSYour Name
136*5113495bSYour Name wlan_twt_concurrency_update(hdd_ctx);
137*5113495bSYour Name hdd_exit();
138*5113495bSYour Name }
139*5113495bSYour Name
140*5113495bSYour Name #ifdef WLAN_FEATURE_NAN
141*5113495bSYour Name #ifdef WLAN_FEATURE_SR
hdd_nan_sr_concurrency_update(struct nan_event_params * nan_evt)142*5113495bSYour Name void hdd_nan_sr_concurrency_update(struct nan_event_params *nan_evt)
143*5113495bSYour Name {
144*5113495bSYour Name struct wlan_objmgr_vdev *sta_vdev = NULL;
145*5113495bSYour Name uint32_t conc_vdev_id = WLAN_INVALID_VDEV_ID;
146*5113495bSYour Name uint8_t sr_ctrl;
147*5113495bSYour Name bool is_sr_enabled = false;
148*5113495bSYour Name uint32_t sta_vdev_id = WLAN_INVALID_VDEV_ID;
149*5113495bSYour Name uint8_t sta_cnt, i;
150*5113495bSYour Name uint32_t conn_count;
151*5113495bSYour Name uint8_t non_srg_max_pd_offset = 0;
152*5113495bSYour Name uint8_t vdev_id_list[MAX_NUMBER_OF_CONC_CONNECTIONS] = {
153*5113495bSYour Name WLAN_INVALID_VDEV_ID};
154*5113495bSYour Name struct nan_psoc_priv_obj *psoc_obj =
155*5113495bSYour Name nan_get_psoc_priv_obj(nan_evt->psoc);
156*5113495bSYour Name struct connection_info info[MAX_NUMBER_OF_CONC_CONNECTIONS] = {0};
157*5113495bSYour Name uint8_t mac_id;
158*5113495bSYour Name QDF_STATUS status;
159*5113495bSYour Name
160*5113495bSYour Name if (!psoc_obj) {
161*5113495bSYour Name nan_err("nan psoc priv object is NULL");
162*5113495bSYour Name return;
163*5113495bSYour Name }
164*5113495bSYour Name conn_count = policy_mgr_get_connection_info(nan_evt->psoc, info);
165*5113495bSYour Name if (!conn_count)
166*5113495bSYour Name return;
167*5113495bSYour Name sta_cnt = policy_mgr_get_mode_specific_conn_info(nan_evt->psoc, NULL,
168*5113495bSYour Name vdev_id_list,
169*5113495bSYour Name PM_STA_MODE);
170*5113495bSYour Name /*
171*5113495bSYour Name * Get all active sta vdevs. STA + STA SR concurrency is not supported
172*5113495bSYour Name * so break whenever a first sta with SR enabled is found.
173*5113495bSYour Name */
174*5113495bSYour Name for (i = 0; i < sta_cnt; i++) {
175*5113495bSYour Name if (vdev_id_list[i] != WLAN_INVALID_VDEV_ID) {
176*5113495bSYour Name sta_vdev = wlan_objmgr_get_vdev_by_id_from_psoc(
177*5113495bSYour Name nan_evt->psoc,
178*5113495bSYour Name vdev_id_list[i],
179*5113495bSYour Name WLAN_OSIF_ID);
180*5113495bSYour Name if (!sta_vdev) {
181*5113495bSYour Name nan_err("sta vdev invalid for vdev id %d",
182*5113495bSYour Name vdev_id_list[i]);
183*5113495bSYour Name continue;
184*5113495bSYour Name }
185*5113495bSYour Name ucfg_spatial_reuse_get_sr_config(
186*5113495bSYour Name sta_vdev, &sr_ctrl,
187*5113495bSYour Name &non_srg_max_pd_offset, &is_sr_enabled);
188*5113495bSYour Name if (is_sr_enabled) {
189*5113495bSYour Name sta_vdev_id = vdev_id_list[i];
190*5113495bSYour Name break;
191*5113495bSYour Name }
192*5113495bSYour Name wlan_objmgr_vdev_release_ref(sta_vdev, WLAN_OSIF_ID);
193*5113495bSYour Name }
194*5113495bSYour Name }
195*5113495bSYour Name if (sta_cnt && sta_vdev &&
196*5113495bSYour Name (!(sr_ctrl & NON_SRG_PD_SR_DISALLOWED) ||
197*5113495bSYour Name (sr_ctrl & SRG_INFO_PRESENT)) &&
198*5113495bSYour Name is_sr_enabled) {
199*5113495bSYour Name if (nan_evt->evt_type == nan_event_id_enable_rsp) {
200*5113495bSYour Name wlan_vdev_mlme_set_sr_disable_due_conc(
201*5113495bSYour Name sta_vdev, true);
202*5113495bSYour Name wlan_spatial_reuse_osif_event(
203*5113495bSYour Name sta_vdev, SR_OPERATION_SUSPEND,
204*5113495bSYour Name SR_REASON_CODE_CONCURRENCY);
205*5113495bSYour Name }
206*5113495bSYour Name if (nan_evt->evt_type == nan_event_id_disable_ind) {
207*5113495bSYour Name if (conn_count > 2) {
208*5113495bSYour Name status =
209*5113495bSYour Name policy_mgr_get_mac_id_by_session_id(
210*5113495bSYour Name nan_evt->psoc, sta_vdev_id,
211*5113495bSYour Name &mac_id);
212*5113495bSYour Name if (QDF_IS_STATUS_ERROR(status)) {
213*5113495bSYour Name hdd_err("get mac id failed");
214*5113495bSYour Name goto exit;
215*5113495bSYour Name }
216*5113495bSYour Name conc_vdev_id =
217*5113495bSYour Name policy_mgr_get_conc_vdev_on_same_mac(
218*5113495bSYour Name nan_evt->psoc, sta_vdev_id,
219*5113495bSYour Name mac_id);
220*5113495bSYour Name /*
221*5113495bSYour Name * Don't enable SR, if concurrent vdev is not
222*5113495bSYour Name * NAN and SR concurrency on same mac is not
223*5113495bSYour Name * allowed.
224*5113495bSYour Name */
225*5113495bSYour Name if (conc_vdev_id != WLAN_INVALID_VDEV_ID &&
226*5113495bSYour Name !policy_mgr_sr_same_mac_conc_enabled(
227*5113495bSYour Name nan_evt->psoc)) {
228*5113495bSYour Name hdd_debug("don't enable SR in SCC/MCC");
229*5113495bSYour Name goto exit;
230*5113495bSYour Name }
231*5113495bSYour Name }
232*5113495bSYour Name wlan_vdev_mlme_set_sr_disable_due_conc(sta_vdev, false);
233*5113495bSYour Name wlan_spatial_reuse_osif_event(
234*5113495bSYour Name sta_vdev, SR_OPERATION_RESUME,
235*5113495bSYour Name SR_REASON_CODE_CONCURRENCY);
236*5113495bSYour Name }
237*5113495bSYour Name }
238*5113495bSYour Name exit:
239*5113495bSYour Name if (sta_vdev && is_sr_enabled)
240*5113495bSYour Name wlan_objmgr_vdev_release_ref(sta_vdev, WLAN_OSIF_ID);
241*5113495bSYour Name }
242*5113495bSYour Name #endif
243*5113495bSYour Name #endif
244