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/******************************************************************************
*
* Copyright (C) 2004-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* Interface file for BTA AG AT command interpreter.
*
******************************************************************************/
#ifndef BTA_AG_AT_H
#define BTA_AG_AT_H
/*****************************************************************************
** Constants
*****************************************************************************/
/* AT command argument capabilities */
#define BTA_AG_AT_NONE 0x01 /* no argument */
#define BTA_AG_AT_SET 0x02 /* set value */
#define BTA_AG_AT_READ 0x04 /* read value */
#define BTA_AG_AT_TEST 0x08 /* test value range */
#define BTA_AG_AT_FREE 0x10 /* freeform argument */
/* AT command argument format */
#define BTA_AG_AT_STR 0 /* string */
#define BTA_AG_AT_INT 1 /* integer */
/*****************************************************************************
** Data types
*****************************************************************************/
/* AT command table element */
typedef struct
{
const char *p_cmd; /* AT command string */
UINT8 arg_type; /* allowable argument type syntax */
UINT8 fmt; /* whether arg is int or string */
UINT8 min; /* minimum value for int arg */
INT16 max; /* maximum value for int arg */
} tBTA_AG_AT_CMD;
/* callback function executed when command is parsed */
typedef void (tBTA_AG_AT_CMD_CBACK)(void *p_user, UINT16 cmd, UINT8 arg_type,
char *p_arg, INT16 int_arg);
/* callback function executed to send "ERROR" result code */
typedef void (tBTA_AG_AT_ERR_CBACK)(void *p_user, BOOLEAN unknown, char *p_arg);
/* AT command parsing control block */
typedef struct
{
tBTA_AG_AT_CMD *p_at_tbl; /* AT command table */
tBTA_AG_AT_CMD_CBACK *p_cmd_cback; /* command callback */
tBTA_AG_AT_ERR_CBACK *p_err_cback; /* error callback */
void *p_user; /* user-defined data */
char *p_cmd_buf; /* temp parsing buffer */
UINT16 cmd_pos; /* position in temp buffer */
UINT16 cmd_max_len; /* length of temp buffer to allocate */
UINT8 state; /* parsing state */
} tBTA_AG_AT_CB;
/*****************************************************************************
** Function prototypes
*****************************************************************************/
/*****************************************************************************
**
** Function bta_ag_at_init
**
** Description Initialize the AT command parser control block.
**
**
** Returns void
**
*****************************************************************************/
extern void bta_ag_at_init(tBTA_AG_AT_CB *p_cb);
/*****************************************************************************
**
** Function bta_ag_at_reinit
**
** Description Re-initialize the AT command parser control block. This
** function resets the AT command parser state and frees
** any GKI buffer.
**
**
** Returns void
**
*****************************************************************************/
extern void bta_ag_at_reinit(tBTA_AG_AT_CB *p_cb);
/*****************************************************************************
**
** Function bta_ag_at_parse
**
** Description Parse AT commands. This function will take the input
** character string and parse it for AT commands according to
** the AT command table passed in the control block.
**
**
** Returns void
**
*****************************************************************************/
extern void bta_ag_at_parse(tBTA_AG_AT_CB *p_cb, char *p_buf, UINT16 len);
#endif /* BTA_AG_AT_H */
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