157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _WIFI_H
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#define _WIFI_H
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#if __cplusplus
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extern "C" {
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#endif
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/**
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* Load the Wi-Fi driver.
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*
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* @return 0 on success, < 0 on failure.
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*/
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int wifi_load_driver();
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/**
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* Unload the Wi-Fi driver.
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*
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* @return 0 on success, < 0 on failure.
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*/
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int wifi_unload_driver();
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/**
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* Check if the Wi-Fi driver is loaded.
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*
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* @return 0 on success, < 0 on failure.
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*/
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int is_wifi_driver_loaded();
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/**
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* Start supplicant.
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*
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* @return 0 on success, < 0 on failure.
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*/
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int wifi_start_supplicant(int p2pSupported);
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/**
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* Stop supplicant.
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*
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* @return 0 on success, < 0 on failure.
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*/
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int wifi_stop_supplicant(int p2pSupported);
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/**
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* Open a connection to supplicant on interface
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*
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* @return 0 on success, < 0 on failure.
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*/
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int wifi_connect_to_supplicant(const char *ifname);
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/**
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* Close connection to supplicant on interface
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*
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* @return 0 on success, < 0 on failure.
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*/
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void wifi_close_supplicant_connection(const char *ifname);
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/**
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* wifi_wait_for_event() performs a blocking call to
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* get a Wi-Fi event and returns a string representing
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* a Wi-Fi event when it occurs.
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*
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* @param iface is the interface on which event is received
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* @param buf is the buffer that receives the event
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* @param len is the maximum length of the buffer
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*
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* @returns number of bytes in buffer, 0 if no
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* event (for instance, no connection), and less than 0
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* if there is an error.
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*/
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int wifi_wait_for_event(const char *iface, char *buf, size_t len);
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/**
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* wifi_command() issues a command to the Wi-Fi driver.
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*
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* Android extends the standard commands listed at
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* /link http://hostap.epitest.fi/wpa_supplicant/devel/ctrl_iface_page.html
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* to include support for sending commands to the driver:
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*
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* See wifi/java/android/net/wifi/WifiNative.java for the details of
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* driver commands that are supported
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*
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* @param iface is the interface on which command is sent
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* @param command is the string command
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* @param reply is a buffer to receive a reply string
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* @param reply_len on entry, this is the maximum length of
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* the reply buffer. On exit, the number of
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* bytes in the reply buffer.
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*
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* @return 0 if successful, < 0 if an error.
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*/
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int wifi_command(const char *iface, const char *command, char *reply, size_t *reply_len);
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/**
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* do_dhcp_request() issues a dhcp request and returns the acquired
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* information.
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*
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* All IPV4 addresses/mask are in network byte order.
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*
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* @param ipaddr return the assigned IPV4 address
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* @param gateway return the gateway being used
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* @param mask return the IPV4 mask
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* @param dns1 return the IPV4 address of a DNS server
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* @param dns2 return the IPV4 address of a DNS server
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* @param server return the IPV4 address of DHCP server
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* @param lease return the length of lease in seconds.
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*
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* @return 0 if successful, < 0 if error.
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*/
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int do_dhcp_request(int *ipaddr, int *gateway, int *mask,
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int *dns1, int *dns2, int *server, int *lease);
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/**
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* Return the error string of the last do_dhcp_request().
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*/
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const char *get_dhcp_error_string();
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/**
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* Return the path to requested firmware
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*/
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#define WIFI_GET_FW_PATH_STA 0
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#define WIFI_GET_FW_PATH_AP 1
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#define WIFI_GET_FW_PATH_P2P 2
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const char *wifi_get_fw_path(int fw_type);
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/**
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* Change the path to firmware for the wlan driver
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*/
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int wifi_change_fw_path(const char *fwpath);
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/**
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* Check and create if necessary initial entropy file
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*/
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#define WIFI_ENTROPY_FILE "/data/misc/wifi/entropy.bin"
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int ensure_entropy_file_exists();
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#if __cplusplus
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}; // extern "C"
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#endif
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#endif // _WIFI_H
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