common.h revision c02e00563882d87ab29822c43097cbb1ce04b55d 
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    GSCAN_SUBCMD_MAX                                    /* 0x100D */
87
88} WIFI_SUB_COMMAND;
89
90typedef enum {
91    BRCM_RESERVED1,
92    BRCM_RESERVED2,
93    GSCAN_EVENT_SIGNIFICANT_CHANGE_RESULTS ,
94    GSCAN_EVENT_HOTLIST_RESULTS_FOUND,
95    GSCAN_EVENT_SCAN_RESULTS_AVAILABLE,
96    GSCAN_EVENT_FULL_SCAN_RESULTS,
97    RTT_EVENT_COMPLETE,
98    GSCAN_EVENT_COMPLETE_SCAN,
99    GSCAN_EVENT_HOTLIST_RESULTS_LOST,
100    GSCAN_EVENT_EPNO_EVENT
101} WIFI_EVENT;
102
103typedef void (*wifi_internal_event_handler) (wifi_handle handle, int events);
104
105class WifiCommand;
106
107typedef struct {
108    int nl_cmd;
109    uint32_t vendor_id;
110    int vendor_subcmd;
111    nl_recvmsg_msg_cb_t cb_func;
112    void *cb_arg;
113} cb_info;
114
115typedef struct {
116    wifi_request_id id;
117    WifiCommand *cmd;
118} cmd_info;
119
120typedef struct {
121    wifi_handle handle;                             // handle to wifi data
122    char name[8+1];                                 // interface name + trailing null
123    int  id;                                        // id to use when talking to driver
124} interface_info;
125
126typedef struct {
127
128    struct nl_sock *cmd_sock;                       // command socket object
129    struct nl_sock *event_sock;                     // event socket object
130    int nl80211_family_id;                          // family id for 80211 driver
131
132    bool in_event_loop;                             // Indicates that event loop is active
133    bool clean_up;                                  // Indication to clean up the socket
134
135    wifi_internal_event_handler event_handler;      // default event handler
136    wifi_cleaned_up_handler cleaned_up_handler;     // socket cleaned up handler
137
138    cb_info *event_cb;                              // event callbacks
139    int num_event_cb;                               // number of event callbacks
140    int alloc_event_cb;                             // number of allocated callback objects
141    pthread_mutex_t cb_lock;                        // mutex for the event_cb access
142
143    cmd_info *cmd;                                  // Outstanding commands
144    int num_cmd;                                    // number of commands
145    int alloc_cmd;                                  // number of commands allocated
146
147    interface_info **interfaces;                    // array of interfaces
148    int num_interfaces;                             // number of interfaces
149
150
151    // add other details
152} hal_info;
153
154#define PNO_SSID_FOUND  0x1
155#define PNO_SSID_LOST    0x2
156
157typedef struct wifi_pno_result {
158    unsigned char ssid[32];
159    unsigned char ssid_len;
160    char rssi;
161    u16 channel;
162    u16 flags;
163} wifi_pno_result_t;
164
165wifi_error wifi_register_handler(wifi_handle handle, int cmd, nl_recvmsg_msg_cb_t func, void *arg);
166wifi_error wifi_register_vendor_handler(wifi_handle handle,
167            uint32_t id, int subcmd, nl_recvmsg_msg_cb_t func, void *arg);
168
169void wifi_unregister_handler(wifi_handle handle, int cmd);
170void wifi_unregister_vendor_handler(wifi_handle handle, uint32_t id, int subcmd);
171
172wifi_error wifi_register_cmd(wifi_handle handle, int id, WifiCommand *cmd);
173WifiCommand *wifi_unregister_cmd(wifi_handle handle, int id);
174WifiCommand *wifi_get_cmd(wifi_handle handle, int id);
175void wifi_unregister_cmd(wifi_handle handle, WifiCommand *cmd);
176
177interface_info *getIfaceInfo(wifi_interface_handle);
178wifi_handle getWifiHandle(wifi_interface_handle handle);
179hal_info *getHalInfo(wifi_handle handle);
180hal_info *getHalInfo(wifi_interface_handle handle);
181wifi_handle getWifiHandle(hal_info *info);
182wifi_interface_handle getIfaceHandle(interface_info *info);
183
184
185// some common macros
186
187#define min(x, y)       ((x) < (y) ? (x) : (y))
188#define max(x, y)       ((x) > (y) ? (x) : (y))
189
190#endif
191
192