124 lines
5.5 KiB
C
124 lines
5.5 KiB
C
/*
|
|
* Copyright (c) 2015, Zolertia - http://www.zolertia.com
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
#ifndef AT_MASTER_H_
|
|
#define AT_MASTER_H_
|
|
#include "contiki.h"
|
|
/*---------------------------------------------------------------------------*/
|
|
#define AT_DEFAULT_RESPONSE_OK "\r\nOK\r\n"
|
|
#define AT_DEFAULT_RESPONSE_ERROR "\r\nERROR\r\n"
|
|
/*---------------------------------------------------------------------------*/
|
|
#define AT_RESPONSE(x) at_send((x), (strlen(x)))
|
|
/*---------------------------------------------------------------------------*/
|
|
extern process_event_t at_cmd_received_event;
|
|
struct at_cmd;
|
|
/*---------------------------------------------------------------------------*/
|
|
typedef enum {
|
|
AT_STATUS_OK,
|
|
AT_STATUS_ERROR,
|
|
AT_STATUS_INVALID_ARGS_ERROR,
|
|
} at_status_t;
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief AT initialization
|
|
* \param uart selects which UART to use
|
|
*
|
|
* The AT driver invokes this function upon registering a command, this will
|
|
* wait for the serial_line_event_message event
|
|
*/
|
|
void at_init(uint8_t uart);
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief AT initialization
|
|
* \param uart selects which UART to use
|
|
*
|
|
* The AT driver invokes this function upon registering a command, this will
|
|
* wait for the serial_line_event_message event
|
|
*/
|
|
uint8_t at_send(char *s, uint8_t len);
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief AT event callback
|
|
* \param cmd A pointer to the AT command placeholder
|
|
* \param len Lenght of the received data (including the AT command header)
|
|
* \param data A user-defined pointer
|
|
*
|
|
* The AT event callback function gets called whenever there is an
|
|
* event on an incoming AT command
|
|
*/
|
|
typedef void (*at_event_callback_t)(struct at_cmd *cmd,
|
|
uint8_t len,
|
|
char *data);
|
|
/*---------------------------------------------------------------------------*/
|
|
struct at_cmd {
|
|
struct at_cmd *next;
|
|
const char *cmd_header;
|
|
uint8_t cmd_hdr_len;
|
|
uint8_t cmd_max_len;
|
|
at_event_callback_t event_callback;
|
|
struct process *app_process;
|
|
};
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Registers the callback to return an AT command
|
|
* \param cmd A pointer to the CMD placeholder
|
|
* \param cmd_hdr String to compare when an AT command is received
|
|
* \param cmd_len Lenght of cmd_hdr
|
|
* \param event_callback Callback function to handle the AT command
|
|
* \return AT_STATUS_OK or AT_STATUS_INVALID_ARGS_ERROR
|
|
*
|
|
* Register the commands to search for when a valid AT frame has been received
|
|
*/
|
|
at_status_t at_register(struct at_cmd *cmd,
|
|
struct process *app_process,
|
|
const char *cmd_hdr,
|
|
const uint8_t cmd_hdr_len,
|
|
const uint8_t cmd_max_len,
|
|
at_event_callback_t event_callback);
|
|
/*---------------------------------------------------------------------------*/
|
|
struct at_cmd *at_list(void);
|
|
/*---------------------------------------------------------------------------*/
|
|
/**
|
|
* \brief Registers the callback to return an AT command
|
|
* \param cmd A pointer to the CMD placeholder
|
|
* \param cmd_hdr String to compare when an AT command is received
|
|
* \param cmd_len Lenght of cmd_hdr
|
|
* \param event_callback Callback function to handle the AT command
|
|
* \return AT_STATUS_OK or AT_STATUS_INVALID_ARGS_ERROR
|
|
*
|
|
* Register the commands to search for when a valid AT frame has been received
|
|
*/
|
|
at_status_t at_register(struct at_cmd *cmd,
|
|
struct process *app_process,
|
|
const char *cmd_hdr,
|
|
const uint8_t cmd_hdr_len,
|
|
const uint8_t cmd_max_len,
|
|
at_event_callback_t event_callback);
|
|
#endif /* AT_MASTER_H_ */
|