1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "wifi_hal.h" 18 19 #ifndef __WIFI_HAL_COMMON_H__ 20 #define __WIFI_HAL_COMMON_H__ 21 22 #ifndef LOG_TAG 23 #define LOG_TAG "WifiHAL" 24 #endif 25 26 #include <stdint.h> 27 #include <fcntl.h> 28 #include <sys/socket.h> 29 #include <netlink/genl/genl.h> 30 #include <netlink/genl/family.h> 31 #include <netlink/genl/ctrl.h> 32 #include <linux/rtnetlink.h> 33 #include <netpacket/packet.h> 34 #include <linux/filter.h> 35 #include <linux/errqueue.h> 36 37 #include <linux/pkt_sched.h> 38 #include <netlink/object-api.h> 39 #include <netlink/netlink.h> 40 #include <netlink/socket.h> 41 #include <netlink-types.h> 42 43 #include "nl80211_copy.h" 44 45 #include <utils/Log.h> 46 47 #define SOCKET_BUFFER_SIZE (32768U) 48 #define RECV_BUF_SIZE (4096) 49 #define DEFAULT_EVENT_CB_SIZE (64) 50 #define DEFAULT_CMD_SIZE (64) 51 52 typedef void (*wifi_internal_event_handler) (wifi_handle handle, int events); 53 54 class WifiCommand; 55 56 typedef struct { 57 int nl_cmd; 58 uint32_t vendor_id; 59 int vendor_subcmd; 60 nl_recvmsg_msg_cb_t cb_func; 61 void *cb_arg; 62 } cb_info; 63 64 typedef struct { 65 wifi_request_id id; 66 WifiCommand *cmd; 67 } cmd_info; 68 69 typedef struct { 70 wifi_handle handle; // handle to wifi data 71 char name[8+1]; // interface name + trailing null 72 int id; // id to use when talking to driver 73 } interface_info; 74 75 typedef struct { 76 77 struct nl_sock *cmd_sock; // command socket object 78 struct nl_sock *event_sock; // event socket object 79 int nl80211_family_id; // family id for 80211 driver 80 81 bool in_event_loop; // Indicates that event loop is active 82 bool clean_up; // Indication to clean up the socket 83 84 wifi_internal_event_handler event_handler; // default event handler 85 wifi_cleaned_up_handler cleaned_up_handler; // socket cleaned up handler 86 87 cb_info *event_cb; // event callbacks 88 int num_event_cb; // number of event callbacks 89 int alloc_event_cb; // number of allocated callback objects 90 91 cmd_info *cmd; // Outstanding commands 92 int num_cmd; // number of commands 93 int alloc_cmd; // number of commands allocated 94 95 interface_info **interfaces; // array of interfaces 96 int num_interfaces; // number of interfaces 97 98 // add other details 99 } hal_info; 100 101 wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg); 102 wifi_error wifi_register_vendor_handler(wifi_handle handle, 103 uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg); 104 105 void wifi_unregister_handler(wifi_handle handle, int cmd); 106 void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd); 107 108 wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd); 109 WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id); 110 void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd); 111 112 interface_info *getIfaceInfo(wifi_interface_handle); 113 wifi_handle getWifiHandle(wifi_interface_handle handle); 114 hal_info *getHalInfo(wifi_handle handle); 115 hal_info *getHalInfo(wifi_interface_handle handle); 116 wifi_handle getWifiHandle(hal_info *info); 117 wifi_interface_handle getIfaceHandle(interface_info *info); 118 119 120 // some common macros 121 122 #define min(x, y) ((x) < (y) ? (x) : (y)) 123 #define max(x, y) ((x) > (y) ? (x) : (y)) 124 125 #ifdef __cplusplus 126 extern "C" 127 { 128 #endif /* __cplusplus */ 129 void hexdump(char *bytes, u16 len); 130 #ifdef __cplusplus 131 } 132 #endif /* __cplusplus */ 133 134 #endif 135 136
