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1 /******************************************************************************
2  *
3  *  Copyright (C) 2009-2013 Broadcom Corporation
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 #include <string.h>
20 #include "bt_target.h"
21 #include "bt_utils.h"
22 #include "gap_int.h"
23 
24 /*******************************************************************************
25 **
26 ** Function         gap_allocate_cb
27 **
28 ** Description      Look through the GAP Control Blocks for a free one.
29 **
30 ** Returns          Pointer to the control block or NULL if not found
31 **
32 *******************************************************************************/
gap_allocate_cb(void)33 tGAP_INFO *gap_allocate_cb (void)
34 {
35     tGAP_INFO     *p_cb = &gap_cb.blk[0];
36     UINT8        x;
37 
38     for (x = 0; x < GAP_MAX_BLOCKS; x++, p_cb++)
39     {
40         if (!p_cb->in_use)
41         {
42             memset (p_cb, 0, sizeof (tGAP_INFO));
43 
44             p_cb->in_use = TRUE;
45             p_cb->index = x;
46             p_cb->p_data = (void *)NULL;
47             return (p_cb);
48         }
49     }
50 
51     /* If here, no free control blocks found */
52     return (NULL);
53 }
54 
55 
56 /*******************************************************************************
57 **
58 ** Function         gap_free_cb
59 **
60 ** Description      Release GAP control block.
61 **
62 ** Returns          Pointer to the control block or NULL if not found
63 **
64 *******************************************************************************/
gap_free_cb(tGAP_INFO * p_cb)65 void gap_free_cb (tGAP_INFO *p_cb)
66 {
67     if (p_cb)
68     {
69         p_cb->gap_cback = NULL;
70         p_cb->in_use = FALSE;
71     }
72 }
73 
74 
75 /*******************************************************************************
76 **
77 ** Function         gap_is_service_busy
78 **
79 ** Description      Look through the GAP Control Blocks that are in use
80 **                  and check to see if the event waiting for is the command
81 **                  requested.
82 **
83 ** Returns          TRUE if already in use
84 **                  FALSE if not busy
85 **
86 *******************************************************************************/
gap_is_service_busy(UINT16 request)87 BOOLEAN gap_is_service_busy (UINT16 request)
88 {
89     tGAP_INFO   *p_cb = &gap_cb.blk[0];
90     UINT8        x;
91 
92     for (x = 0; x < GAP_MAX_BLOCKS; x++, p_cb++)
93     {
94         if (p_cb->in_use && p_cb->event == request)
95             return (TRUE);
96     }
97 
98     /* If here, service is not busy */
99     return (FALSE);
100 }
101 
102 
103 /*******************************************************************************
104 **
105 ** Function         gap_convert_btm_status
106 **
107 ** Description      Converts a BTM error status into a GAP error status
108 **
109 **
110 ** Returns          GAP_UNKNOWN_BTM_STATUS is returned if not recognized
111 **
112 *******************************************************************************/
gap_convert_btm_status(tBTM_STATUS btm_status)113 UINT16 gap_convert_btm_status (tBTM_STATUS btm_status)
114 {
115     switch (btm_status)
116     {
117     case BTM_SUCCESS:
118         return (BT_PASS);
119 
120     case BTM_CMD_STARTED:
121         return (GAP_CMD_INITIATED);
122 
123     case BTM_BUSY:
124         return (GAP_ERR_BUSY);
125 
126     case BTM_MODE_UNSUPPORTED:
127     case BTM_ILLEGAL_VALUE:
128         return (GAP_ERR_ILL_PARM);
129 
130     case BTM_WRONG_MODE:
131         return (GAP_DEVICE_NOT_UP);
132 
133     case BTM_UNKNOWN_ADDR:
134         return (GAP_BAD_BD_ADDR);
135 
136     case BTM_DEVICE_TIMEOUT:
137         return (GAP_ERR_TIMEOUT);
138 
139     default:
140         return (GAP_ERR_PROCESSING);
141     }
142 }
143