1 /* 2 * Copyright (c) 2011, 2017-2020 The Linux Foundation. All rights reserved. 3 * 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef _OS_IF_SPECTRAL_NETLINK_H 21 #define _OS_IF_SPECTRAL_NETLINK_H 22 23 #include <net/netlink.h> 24 #include <wlan_objmgr_pdev_obj.h> 25 #include <linux/version.h> 26 #include <linux/module.h> 27 #include <linux/kernel.h> 28 #include <wlan_spectral_public_structs.h> 29 30 /* NETLINK related declarations */ 31 #if (KERNEL_VERSION(2, 6, 31) > LINUX_VERSION_CODE) 32 void os_if_spectral_nl_data_ready(struct sock *sk, int len); 33 #else 34 void os_if_spectral_nl_data_ready(struct sk_buff *skb); 35 #endif /* VERSION CHECK */ 36 37 #ifndef SPECTRAL_NETLINK 38 #define SPECTRAL_NETLINK (NETLINK_GENERIC + 1) 39 #endif 40 #define MAX_SPECTRAL_PAYLOAD (2004) 41 42 /* Init's network namespace */ 43 extern struct net init_net; 44 45 /** 46 * os_if_spectral_netlink_init() - Initialize Spectral Netlink data structures 47 * and register the NL handlers with Spectral target_if 48 * @pdev: Pointer to pdev 49 * 50 * Preparing socket buffer and sending Netlink messages to application layer are 51 * defined in os_if layer, they need to be registered with Spectral target_if 52 * 53 * Return: None 54 */ 55 #ifdef WLAN_CONV_SPECTRAL_ENABLE 56 void os_if_spectral_netlink_init(struct wlan_objmgr_pdev *pdev); 57 /** 58 * os_if_spectral_prep_skb() - Prepare socket buffer 59 * @pdev : Pointer to pdev 60 * @smsg_type: Spectral scan message type 61 * @buf_type: Spectral report buffer type 62 * 63 * Prepare socket buffer to send the data to application layer 64 * 65 * Return: NLMSG_DATA of the created skb or NULL if no memory 66 */ 67 void *os_if_spectral_prep_skb(struct wlan_objmgr_pdev *pdev, 68 enum spectral_msg_type smsg_type, 69 enum spectral_msg_buf_type buf_type); 70 71 /** 72 * os_if_spectral_netlink_deinit() - De-initialize Spectral Netlink data 73 * structures and de-register the NL handlers from Spectral target_if 74 * @pdev: Pointer to pdev 75 * 76 * Return: None 77 */ 78 void os_if_spectral_netlink_deinit(struct wlan_objmgr_pdev *pdev); 79 #else 80 81 static inline void os_if_spectral_netlink_init(struct wlan_objmgr_pdev *pdev) 82 { 83 } 84 85 static inline void os_if_spectral_netlink_deinit(struct wlan_objmgr_pdev *pdev) 86 { 87 } 88 89 #endif 90 #endif /* _OS_IF_SPECTRAL_NETLINK_H */ 91