| 1 | |
| 2 | #include "wifi_hal.h" |
| 3 | |
| 4 | #ifndef __WIFI_HAL_COMMON_H__ |
| 5 | #define __WIFI_HAL_COMMON_H__ |
| 6 | |
| 7 | #define LOG_TAG "WifiHAL" |
| 8 | |
| 9 | #include <utils/Log.h> |
| 10 | #include "nl80211_copy.h" |
| 11 | #include "sync.h" |
| 12 | |
| 13 | #define SOCKET_BUFFER_SIZE (32768U) |
| 14 | #define RECV_BUF_SIZE (4096) |
| 15 | #define DEFAULT_EVENT_CB_SIZE (64) |
| 16 | #define DEFAULT_CMD_SIZE (64) |
| 17 | #define DOT11_OUI_LEN 3 |
| 18 | |
| 19 | /* |
| 20 | Vendor OUI - This is a unique identifier that identifies organization. Lets |
| 21 | code Android specific functions with Google OUI; although vendors can do more |
| 22 | with their own OUI's as well. |
| 23 | */ |
| 24 | |
| 25 | const uint32_t GOOGLE_OUI = 0x001A11; |
| 26 | /* TODO: define vendor OUI here */ |
| 27 | |
| 28 | |
| 29 | /* |
| 30 | This enum defines ranges for various commands; commands themselves |
| 31 | can be defined in respective feature headers; i.e. find gscan command |
| 32 | definitions in gscan.cpp |
| 33 | */ |
| 34 | |
| 35 | typedef enum { |
| 36 | /* don't use 0 as a valid subcommand */ |
| 37 | VENDOR_NL80211_SUBCMD_UNSPECIFIED, |
| 38 | |
| 39 | /* define all vendor startup commands between 0x0 and 0x0FFF */ |
| 40 | VENDOR_NL80211_SUBCMD_RANGE_START = 0x0001, |
| 41 | VENDOR_NL80211_SUBCMD_RANGE_END = 0x0FFF, |
| 42 | |
| 43 | /* define all GScan related commands between 0x1000 and 0x10FF */ |
| 44 | ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START = 0x1000, |
| 45 | ANDROID_NL80211_SUBCMD_GSCAN_RANGE_END = 0x10FF, |
| 46 | |
| 47 | /* define all NearbyDiscovery related commands between 0x1100 and 0x11FF */ |
| 48 | ANDROID_NL80211_SUBCMD_NBD_RANGE_START = 0x1100, |
| 49 | ANDROID_NL80211_SUBCMD_NBD_RANGE_END = 0x11FF, |
| 50 | |
| 51 | /* define all RTT related commands between 0x1100 and 0x11FF */ |
| 52 | ANDROID_NL80211_SUBCMD_RTT_RANGE_START = 0x1100, |
| 53 | ANDROID_NL80211_SUBCMD_RTT_RANGE_END = 0x11FF, |
| 54 | |
| 55 | ANDROID_NL80211_SUBCMD_LSTATS_RANGE_START = 0x1200, |
| 56 | ANDROID_NL80211_SUBCMD_LSTATS_RANGE_END = 0x12FF, |
| 57 | |
| 58 | /* This is reserved for future usage */ |
| 59 | |
| 60 | } ANDROID_VENDOR_SUB_COMMAND; |
| 61 | |
| 62 | typedef enum { |
| 63 | SLSI_NL80211_VENDOR_SUBCMD_GET_CAPABILITIES = ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START, |
| 64 | SLSI_NL80211_VENDOR_SUBCMD_GET_VALID_CHANNELS, |
| 65 | SLSI_NL80211_VENDOR_SUBCMD_ADD_GSCAN, |
| 66 | SLSI_NL80211_VENDOR_SUBCMD_DEL_GSCAN, |
| 67 | SLSI_NL80211_VENDOR_SUBCMD_GET_SCAN_RESULTS, |
| 68 | SLSI_NL80211_VENDOR_SUBCMD_SET_BSSID_HOTLIST, |
| 69 | SLSI_NL80211_VENDOR_SUBCMD_RESET_BSSID_HOTLIST, |
| 70 | SLSI_NL80211_VENDOR_SUBCMD_GET_HOTLIST_RESULTS, |
| 71 | SLSI_NL80211_VENDOR_SUBCMD_SET_SIGNIFICANT_CHANGE, |
| 72 | SLSI_NL80211_VENDOR_SUBCMD_RESET_SIGNIFICANT_CHANGE, |
| 73 | SLSI_NL80211_VENDOR_SUBCMD_SET_GSCAN_OUI, |
| 74 | SLSI_NL80211_VENDOR_SUBCMD_SET_NODFS |
| 75 | } WIFI_SUB_COMMAND; |
| 76 | |
| 77 | typedef enum { |
| 78 | GSCAN_EVENT_SIGNIFICANT_CHANGE_RESULTS , |
| 79 | GSCAN_EVENT_HOTLIST_RESULTS_FOUND, |
| 80 | GSCAN_EVENT_SCAN_RESULTS_AVAILABLE, |
| 81 | GSCAN_EVENT_FULL_SCAN_RESULTS, |
| 82 | GSCAN_EVENT_COMPLETE_SCAN, |
| 83 | GSCAN_EVENT_HOTLIST_RESULTS_LOST |
| 84 | } WIFI_EVENT; |
| 85 | |
| 86 | typedef void (*wifi_internal_event_handler) (wifi_handle handle, int events); |
| 87 | |
| 88 | class WifiCommand; |
| 89 | |
| 90 | typedef struct { |
| 91 | int nl_cmd; |
| 92 | uint32_t vendor_id; |
| 93 | int vendor_subcmd; |
| 94 | nl_recvmsg_msg_cb_t cb_func; |
| 95 | void *cb_arg; |
| 96 | } cb_info; |
| 97 | |
| 98 | typedef struct { |
| 99 | wifi_request_id id; |
| 100 | WifiCommand *cmd; |
| 101 | } cmd_info; |
| 102 | |
| 103 | typedef struct { |
| 104 | wifi_handle handle; // handle to wifi data |
| 105 | char name[8+1]; // interface name + trailing null |
| 106 | int id; // id to use when talking to driver |
| 107 | } interface_info; |
| 108 | |
| 109 | typedef struct { |
| 110 | |
| 111 | struct nl_sock *cmd_sock; // command socket object |
| 112 | struct nl_sock *event_sock; // event socket object |
| 113 | int nl80211_family_id; // family id for 80211 driver |
| 114 | int cleanup_socks[2]; // sockets used to implement wifi_cleanup |
| 115 | |
| 116 | bool in_event_loop; // Indicates that event loop is active |
| 117 | bool clean_up; // Indication to clean up the socket |
| 118 | |
| 119 | wifi_internal_event_handler event_handler; // default event handler |
| 120 | wifi_cleaned_up_handler cleaned_up_handler; // socket cleaned up handler |
| 121 | |
| 122 | cb_info *event_cb; // event callbacks |
| 123 | int num_event_cb; // number of event callbacks |
| 124 | int alloc_event_cb; // number of allocated callback objects |
| 125 | pthread_mutex_t cb_lock; // mutex for the event_cb access |
| 126 | |
| 127 | cmd_info *cmd; // Outstanding commands |
| 128 | int num_cmd; // number of commands |
| 129 | int alloc_cmd; // number of commands allocated |
| 130 | |
| 131 | interface_info **interfaces; // array of interfaces |
| 132 | int num_interfaces; // number of interfaces |
| 133 | |
| 134 | |
| 135 | // add other details |
| 136 | } hal_info; |
| 137 | |
| 138 | wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg); |
| 139 | wifi_error wifi_register_vendor_handler(wifi_handle handle, |
| 140 | uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg); |
| 141 | |
| 142 | void wifi_unregister_handler(wifi_handle handle, int cmd); |
| 143 | void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd); |
| 144 | |
| 145 | wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd); |
| 146 | WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id); |
| 147 | WifiCommand *wifi_get_cmd(wifi_handle handle, int id); |
| 148 | void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd); |
| 149 | |
| 150 | interface_info *getIfaceInfo(wifi_interface_handle); |
| 151 | wifi_handle getWifiHandle(wifi_interface_handle handle); |
| 152 | hal_info *getHalInfo(wifi_handle handle); |
| 153 | hal_info *getHalInfo(wifi_interface_handle handle); |
| 154 | wifi_handle getWifiHandle(hal_info *info); |
| 155 | wifi_interface_handle getIfaceHandle(interface_info *info); |
| 156 | |
| 157 | |
| 158 | // some common macros |
| 159 | |
| 160 | #define min(x, y) ((x) < (y) ? (x) : (y)) |
| 161 | #define max(x, y) ((x) > (y) ? (x) : (y)) |
| 162 | |
| 163 | #endif |
| 164 | |