1 /******************************************************************************
3 * Copyright (C) 2004-2012 Broadcom Corporation
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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 ******************************************************************************/
19 /******************************************************************************
21 * Interface file for BTA AG AT command interpreter.
23 ******************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
31 /* AT command argument capabilities */
32 #define BTA_AG_AT_NONE 0x01 /* no argument */
33 #define BTA_AG_AT_SET 0x02 /* set value */
34 #define BTA_AG_AT_READ 0x04 /* read value */
35 #define BTA_AG_AT_TEST 0x08 /* test value range */
36 #define BTA_AG_AT_FREE 0x10 /* freeform argument */
38 /* AT command argument format */
39 #define BTA_AG_AT_STR 0 /* string */
40 #define BTA_AG_AT_INT 1 /* integer */
42 /*****************************************************************************
44 *****************************************************************************/
46 /* AT command table element */
49 const char *p_cmd; /* AT command string */
50 UINT8 arg_type; /* allowable argument type syntax */
51 UINT8 fmt; /* whether arg is int or string */
52 UINT8 min; /* minimum value for int arg */
53 INT16 max; /* maximum value for int arg */
56 /* callback function executed when command is parsed */
57 typedef void (tBTA_AG_AT_CMD_CBACK)(void *p_user, UINT16 cmd, UINT8 arg_type,
58 char *p_arg, INT16 int_arg);
60 /* callback function executed to send "ERROR" result code */
61 typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, BOOLEAN unknown, char *p_arg);
63 /* AT command parsing control block */
66 tBTA_AG_AT_CMD *p_at_tbl; /* AT command table */
67 tBTA_AG_AT_CMD_CBACK *p_cmd_cback; /* command callback */
68 tBTA_AG_AT_ERR_CBACK *p_err_cback; /* error callback */
69 void *p_user; /* user-defined data */
70 char *p_cmd_buf; /* temp parsing buffer */
71 UINT16 cmd_pos; /* position in temp buffer */
72 UINT16 cmd_max_len; /* length of temp buffer to allocate */
73 UINT8 state; /* parsing state */
76 /*****************************************************************************
77 ** Function prototypes
78 *****************************************************************************/
80 /*****************************************************************************
82 ** Function bta_ag_at_init
84 ** Description Initialize the AT command parser control block.
89 *****************************************************************************/
90 extern void bta_ag_at_init(tBTA_AG_AT_CB *p_cb);
92 /*****************************************************************************
94 ** Function bta_ag_at_reinit
96 ** Description Re-initialize the AT command parser control block. This
97 ** function resets the AT command parser state and frees
103 *****************************************************************************/
104 extern void bta_ag_at_reinit(tBTA_AG_AT_CB *p_cb);
106 /*****************************************************************************
108 ** Function bta_ag_at_parse
110 ** Description Parse AT commands. This function will take the input
111 ** character string and parse it for AT commands according to
112 ** the AT command table passed in the control block.
117 *****************************************************************************/
118 extern void bta_ag_at_parse(tBTA_AG_AT_CB *p_cb, char *p_buf, UINT16 len);
120 #endif /* BTA_AG_AT_H */