common.h revision 410ad0bbd246404e61de42ea62266f4cc55f9a5a 
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
25const 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
35typedef 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
62typedef enum {
63
64    GSCAN_SUBCMD_GET_CAPABILITIES = ANDROID_NL80211_SUBCMD_GSCAN_RANGE_START,
65
66    GSCAN_SUBCMD_SET_CONFIG,                            /* 0x1001 */
67
68    GSCAN_SUBCMD_SET_SCAN_CONFIG,                       /* 0x1002 */
69    GSCAN_SUBCMD_ENABLE_GSCAN,                          /* 0x1003 */
70    GSCAN_SUBCMD_GET_SCAN_RESULTS,                      /* 0x1004 */
71    GSCAN_SUBCMD_SCAN_RESULTS,                          /* 0x1005 */
72
73    GSCAN_SUBCMD_SET_HOTLIST,                           /* 0x1006 */
74
75    GSCAN_SUBCMD_SET_SIGNIFICANT_CHANGE_CONFIG,         /* 0x1007 */
76    GSCAN_SUBCMD_ENABLE_FULL_SCAN_RESULTS,              /* 0x1008 */
77    GSCAN_SUBCMD_GET_CHANNEL_LIST,                       /* 0x1009 */
78
79    WIFI_SUBCMD_GET_FEATURE_SET,                         /* 0x100A */
80    WIFI_SUBCMD_GET_FEATURE_SET_MATRIX,                  /* 0x100B */
81    WIFI_SUBCMD_SET_PNO_RANDOM_MAC_OUI,                  /* 0x100C */
82    WIFI_SUBCMD_NODFS_SET,                               /* 0x100D */
83    WIFI_SUBCMD_SET_COUNTRY_CODE,                             /* 0x100E */
84    /* Add more sub commands here */
85    GSCAN_SUBCMD_SET_EPNO_SSID,                          /* 0x100F */
86
87    WIFI_SUBCMD_SET_SSID_WHITE_LIST,                    /* 0x1010 */
88    WIFI_SUBCMD_SET_ROAM_PARAMS,                        /* 0x1011 */
89    WIFI_SUBCMD_ENABLE_LAZY_ROAM,                       /* 0x1012 */
90    WIFI_SUBCMD_SET_BSSID_PREF,                         /* 0x1013 */
91    WIFI_SUBCMD_SET_BSSID_BLACKLIST,                     /* 0x1014 */
92    /* Add more sub commands here */
93
94    GSCAN_SUBCMD_MAX                                    /* 0x1015 */
95
96} WIFI_SUB_COMMAND;
97
98typedef enum {
99    BRCM_RESERVED1,
100    BRCM_RESERVED2,
101    GSCAN_EVENT_SIGNIFICANT_CHANGE_RESULTS ,
102    GSCAN_EVENT_HOTLIST_RESULTS_FOUND,
103    GSCAN_EVENT_SCAN_RESULTS_AVAILABLE,
104    GSCAN_EVENT_FULL_SCAN_RESULTS,
105    RTT_EVENT_COMPLETE,
106    GSCAN_EVENT_COMPLETE_SCAN,
107    GSCAN_EVENT_HOTLIST_RESULTS_LOST,
108    GSCAN_EVENT_EPNO_EVENT
109} WIFI_EVENT;
110
111typedef void (*wifi_internal_event_handler) (wifi_handle handle, int events);
112
113class WifiCommand;
114
115typedef struct {
116    int nl_cmd;
117    uint32_t vendor_id;
118    int vendor_subcmd;
119    nl_recvmsg_msg_cb_t cb_func;
120    void *cb_arg;
121} cb_info;
122
123typedef struct {
124    wifi_request_id id;
125    WifiCommand *cmd;
126} cmd_info;
127
128typedef struct {
129    wifi_handle handle;                             // handle to wifi data
130    char name[8+1];                                 // interface name + trailing null
131    int  id;                                        // id to use when talking to driver
132} interface_info;
133
134typedef struct {
135
136    struct nl_sock *cmd_sock;                       // command socket object
137    struct nl_sock *event_sock;                     // event socket object
138    int nl80211_family_id;                          // family id for 80211 driver
139
140    bool in_event_loop;                             // Indicates that event loop is active
141    bool clean_up;                                  // Indication to clean up the socket
142
143    wifi_internal_event_handler event_handler;      // default event handler
144    wifi_cleaned_up_handler cleaned_up_handler;     // socket cleaned up handler
145
146    cb_info *event_cb;                              // event callbacks
147    int num_event_cb;                               // number of event callbacks
148    int alloc_event_cb;                             // number of allocated callback objects
149    pthread_mutex_t cb_lock;                        // mutex for the event_cb access
150
151    cmd_info *cmd;                                  // Outstanding commands
152    int num_cmd;                                    // number of commands
153    int alloc_cmd;                                  // number of commands allocated
154
155    interface_info **interfaces;                    // array of interfaces
156    int num_interfaces;                             // number of interfaces
157
158
159    // add other details
160} hal_info;
161
162#define PNO_SSID_FOUND  0x1
163#define PNO_SSID_LOST    0x2
164
165typedef struct wifi_pno_result {
166    unsigned char ssid[32];
167    unsigned char ssid_len;
168    signed char rssi;
169    u16 channel;
170    u16 flags;
171} wifi_pno_result_t;
172
173wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg);
174wifi_error wifi_register_vendor_handler(wifi_handle handle,
175            uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg);
176
177void wifi_unregister_handler(wifi_handle handle, int cmd);
178void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd);
179
180wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd);
181WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id);
182WifiCommand *wifi_get_cmd(wifi_handle handle, int id);
183void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd);
184
185interface_info *getIfaceInfo(wifi_interface_handle);
186wifi_handle getWifiHandle(wifi_interface_handle handle);
187hal_info *getHalInfo(wifi_handle handle);
188hal_info *getHalInfo(wifi_interface_handle handle);
189wifi_handle getWifiHandle(hal_info *info);
190wifi_interface_handle getIfaceHandle(interface_info *info);
191
192
193// some common macros
194
195#define min(x, y)       ((x) < (y) ? (x) : (y))
196#define max(x, y)       ((x) > (y) ? (x) : (y))
197
198#endif
199
200