hardware/bt_hh.h

   1 /*
   2  * Copyright (C) 2012 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 #ifndef ANDROID_INCLUDE_BT_HH_H
  18 #define ANDROID_INCLUDE_BT_HH_H
  19
  20 #include <stdint.h>
  21
  22 __BEGIN_DECLS
  23
  24 #define BTHH_MAX_DSC_LEN   884
  25
  26 /* HH connection states */
  27 typedef enum
  28 {
  29     BTHH_CONN_STATE_CONNECTED              = 0,
  30     BTHH_CONN_STATE_CONNECTING,
  31     BTHH_CONN_STATE_DISCONNECTED,
  32     BTHH_CONN_STATE_DISCONNECTING,
  33     BTHH_CONN_STATE_FAILED_MOUSE_FROM_HOST,
  34     BTHH_CONN_STATE_FAILED_KBD_FROM_HOST,
  35     BTHH_CONN_STATE_FAILED_TOO_MANY_DEVICES,
  36     BTHH_CONN_STATE_FAILED_NO_BTHID_DRIVER,
  37     BTHH_CONN_STATE_FAILED_GENERIC,
  38     BTHH_CONN_STATE_UNKNOWN
  39 } bthh_connection_state_t;
  40
  41 typedef enum
  42 {
  43     BTHH_OK                = 0,
  44     BTHH_HS_HID_NOT_READY,        /* handshake error : device not ready */
  45     BTHH_HS_INVALID_RPT_ID,       /* handshake error : invalid report ID */
  46     BTHH_HS_TRANS_NOT_SPT,        /* handshake error : transaction not spt */
  47     BTHH_HS_INVALID_PARAM,        /* handshake error : invalid paremter */
  48     BTHH_HS_ERROR,                /* handshake error : unspecified HS error */
  49     BTHH_ERR,                     /* general BTA HH error */
  50     BTHH_ERR_SDP,                 /* SDP error */
  51     BTHH_ERR_PROTO,               /* SET_Protocol error,
  52                                                                 only used in BTA_HH_OPEN_EVT callback */
  53     BTHH_ERR_DB_FULL,             /* device database full error, used  */
  54     BTHH_ERR_TOD_UNSPT,           /* type of device not supported */
  55     BTHH_ERR_NO_RES,              /* out of system resources */
  56     BTHH_ERR_AUTH_FAILED,         /* authentication fail */
  57     BTHH_ERR_HDL
  58 }bthh_status_t;
  59
  60 /* Protocol modes */
  61 typedef enum {
  62     BTHH_REPORT_MODE       = 0x00,
  63     BTHH_BOOT_MODE         = 0x01,
  64     BTHH_UNSUPPORTED_MODE  = 0xff
  65 }bthh_protocol_mode_t;
  66
  67 /* Report types */
  68 typedef enum {
  69     BTHH_INPUT_REPORT      = 1,
  70     BTHH_OUTPUT_REPORT,
  71     BTHH_FEATURE_REPORT
  72 }bthh_report_type_t;
  73
  74 typedef struct
  75 {
  76     int         attr_mask;
  77     uint8_t     sub_class;
  78     uint8_t     app_id;
  79     int         vendor_id;
  80     int         product_id;
  81     int         version;
  82     uint8_t     ctry_code;
  83     int         dl_len;
  84     uint8_t     dsc_list[BTHH_MAX_DSC_LEN];
  85 } bthh_hid_info_t;
  86
  87 /** Callback for connection state change.
  88  *  state will have one of the values from bthh_connection_state_t
  89  */
  90 typedef void (* bthh_connection_state_callback)(bt_bdaddr_t *bd_addr, bthh_connection_state_t state);
  91
  92 /** Callback for vitual unplug api.
  93  *  the status of the vitual unplug
  94  */
  95 typedef void (* bthh_virtual_unplug_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status);
  96
  97 /** Callback for get hid info
  98  *  hid_info will contain attr_mask, sub_class, app_id, vendor_id, product_id, version, ctry_code, len
  99  */
 100 typedef void (* bthh_hid_info_callback)(bt_bdaddr_t *bd_addr, bthh_hid_info_t hid_info);
 101
 102 /** Callback for get/set protocal api.
 103  *  the protocol mode is one of the value from bthh_protocol_mode_t
 104  */
 105 typedef void (* bthh_protocol_mode_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status,bthh_protocol_mode_t mode);
 106
 107 /** Callback for get/set_idle_time api.
 108  */
 109 typedef void (* bthh_idle_time_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status, int idle_rate);
 110
 111
 112 /** Callback for get report api.
 113  *  if staus is ok rpt_data contains the report data
 114  */
 115 typedef void (* bthh_get_report_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status, uint8_t* rpt_data, int rpt_size);
 116
 117
 118 /** BT-HH callback structure. */
 119 typedef struct {
 120     /** set to sizeof(BtHfCallbacks) */
 121     size_t      size;
 122     bthh_connection_state_callback  connection_state_cb;
 123     bthh_hid_info_callback          hid_info_cb;
 124     bthh_protocol_mode_callback     protocol_mode_cb;
 125     bthh_idle_time_callback         idle_time_cb;
 126     bthh_get_report_callback        get_report_cb;
 127     bthh_virtual_unplug_callback    virtual_unplug_cb;
 128
 129 } bthh_callbacks_t;
 130
 131
 132
 133 /** Represents the standard BT-HH interface. */
 134 typedef struct {
 135
 136     /** set to sizeof(BtHhInterface) */
 137     size_t          size;
 138
 139     /**
 140      * Register the BtHh callbacks
 141      */
 142     bt_status_t (*init)( bthh_callbacks_t* callbacks );
 143
 144     /** connect to hid device */
 145     bt_status_t (*connect)( bt_bdaddr_t *bd_addr);
 146
 147     /** dis-connect from hid device */
 148     bt_status_t (*disconnect)( bt_bdaddr_t *bd_addr );
 149
 150     /** Virtual UnPlug (VUP) the specified HID device */
 151     bt_status_t (*virtual_unplug)(bt_bdaddr_t *bd_addr);
 152
 153     /** Set the HID device descriptor for the specified HID device. */
 154     bt_status_t (*set_info)(bt_bdaddr_t *bd_addr, bthh_hid_info_t hid_info );
 155
 156     /** Get the HID proto mode. */
 157     bt_status_t (*get_protocol) (bt_bdaddr_t *bd_addr, bthh_protocol_mode_t protocolMode);
 158
 159     /** Set the HID proto mode. */
 160     bt_status_t (*set_protocol)(bt_bdaddr_t *bd_addr, bthh_protocol_mode_t protocolMode);
 161
 162     /** Send a GET_REPORT to HID device. */
 163     bt_status_t (*get_report)(bt_bdaddr_t *bd_addr, bthh_report_type_t reportType, uint8_t reportId, int bufferSize);
 164
 165     /** Send a SET_REPORT to HID device. */
 166     bt_status_t (*set_report)(bt_bdaddr_t *bd_addr, bthh_report_type_t reportType, char* report);
 167
 168     /** Send data to HID device. */
 169     bt_status_t (*send_data)(bt_bdaddr_t *bd_addr, char* data);
 170
 171         /** Closes the interface. */
 172     void  (*cleanup)( void );
 173
 174 } bthh_interface_t;
 175 __END_DECLS
 176
 177 #endif /* ANDROID_INCLUDE_BT_HH_H */
 178
 179