/*
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* Copyright (C) 2016 Spreadtrum Communications Inc.
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*
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* Abstract : This file is an implementation for NAN
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*
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* Authors:
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* Chaojie Xu <chaojie.xu@spreadtrum.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "sprdwl.h"
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#include "nan.h"
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/* macro */
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#define NAN_RSP_LEN 128
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/* structure */
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/* cmd handler*/
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0)
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int sprdwl_vendor_nan_cmds(struct wiphy *wiphy,
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struct wireless_dev *wdev,
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const void *data, int len)
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{
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struct sprdwl_msg_buf *msg;
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struct sprdwl_vif *vif = netdev_priv(wdev->netdev);
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u8 rsp[NAN_RSP_LEN] = {0x0};
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u16 rsp_len = NAN_RSP_LEN;
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int ret = 0;
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msg = sprdwl_cmd_getbuf(vif->priv, len,
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vif->ctx_id, 1, WIFI_CMD_NAN);
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if (!msg)
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return -ENOMEM;
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memcpy(msg->data, data, len);
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ret = sprdwl_cmd_send_recv(vif->priv, msg,
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CMD_WAIT_TIMEOUT, rsp, &rsp_len);
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if (!ret && rsp_len)
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sprdwl_event_nan(vif, rsp, rsp_len);
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else
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wl_err("%s: ret=%d, rsp_len=%d\n", __func__, ret, rsp_len);
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return ret;
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}
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/* event handler*/
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int sprdwl_event_nan(struct sprdwl_vif *vif, u8 *data, u16 len)
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{
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struct sprdwl_priv *priv = vif->priv;
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struct wiphy *wiphy = priv->wiphy;
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struct sk_buff *skb;
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/* Alloc the skb for vendor event */
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 83)
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skb = cfg80211_vendor_event_alloc(wiphy, &vif->wdev, NLMSG_HDRLEN + len,
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#else
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skb = cfg80211_vendor_event_alloc(wiphy, NLMSG_HDRLEN + len,
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#endif
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SPRDWL_VENDOR_EVENT_NAN_INDEX,
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GFP_KERNEL);
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if (!skb) {
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wl_ndev_log(L_INFO, vif->ndev, "skb alloc failed");
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return -ENOMEM;
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}
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/* Push the data to the skb */
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if (nla_put(skb, SRPDWL_VENDOR_ATTR_NAN, len, data)) {
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wl_ndev_log(L_INFO, vif->ndev, "nla put failed");
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kfree_skb(skb);
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return -1;
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}
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cfg80211_vendor_event(skb, GFP_KERNEL);
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return 0;
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}
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#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0) */
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