文章目录
- [TencentOS tiny简述](#TencentOS tiny简述)
- 源码下载相关链接
- [TencentOS tiny AT指令处理](#TencentOS tiny AT指令处理)
TencentOS tiny简述
腾讯物联网终端操作系统（TencentOS tiny）是腾讯面向物联网领域开发的实时操作系统，具有低功耗，低资源占用，模块化，安全可靠等特点。TencentOS tiny 提供精简的 RTOS 内核以及丰富的可裁剪可配置内核组件，可快速移植到多种主流 MCU 及模组芯片上。在物联网方面，TencentOS tiny基于RTOS内核提供了丰富的物联网组件，内部集成了多种主流物联网协议栈（如 CoAP/MQTT/TLS/DTLS/LoRaWAN/NB-IoT 等），极大的方便了物联网终端设备及业务快速接入物联网平台。针对AT指令的处理，TencentOS tiny设计了一套可读性高、稳定可靠的处理框架，本文及其后续的文章，均是对TencentOS tiny AT指令处理代码的源码分析。
源码下载相关链接
TencentOS tiny AT指令处理
TencentOS tiny AT处理相关的代码，为了net文件夹下的at文件夹中，其中tos_at.h主要是数据类型、枚举的定义和tos_at.c中是函数的具体实现。
下一篇内容，我们将对源码进行分析，详细讲解具体实现
tos_at.h代码
c
/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
#ifndef _TOS_AT_H_
#define _TOS_AT_H_
#include "tos_k.h"
#include "tos_hal.h"
#define AT_DATA_CHANNEL_NUM 6
#define AT_DATA_CHANNEL_FIFO_BUFFER_DEFAULT_SIZE (2048 + 1024)
#define AT_UART_RX_FIFO_BUFFER_SIZE (2048 + 1024)
#define AT_RECV_CACHE_SIZE 2048
#define AT_CMD_BUFFER_SIZE 512
#define AT_PARSER_TASK_STACK_SIZE 2048
#define AT_PARSER_TASK_PRIO 2
#define AT_INPUT_TYPE_FRAME_EN 0
#define AT_FRAME_LEN_MAIL_MAX 5
#define AT_INPUT_SIMULATE_IDLE_EN 0
#define SIMULATE_IDLE_DEFAULT_TIME 5
#define AT_DEBUG_LOG_EN 0
#if AT_DEBUG_LOG_EN
#define AT_LOG(...) tos_kprintf(__VA_ARGS__)
#else
#define AT_LOG(...)
#endif
#if (AT_INPUT_SIMULATE_IDLE_EN == 1) && (AT_INPUT_TYPE_FRAME_EN == 1)
#error "please choose AT_INPUT_SIMULATE_IDLE or AT_INPUT_TYPE_FRAM!"
#elif (AT_INPUT_SIMULATE_IDLE_EN == 1) && (TOS_CFG_TIMER_EN == 0)
#error "please enable TOS_CFG_TIMER_EN!"
#endif
typedef enum at_status_en {
AT_STATUS_OK,
AT_STATUS_ERROR,
AT_STATUS_INVALID_ARGS,
} at_status_t;
typedef struct at_cache_st {
uint8_t *buffer;
size_t buffer_size;
size_t recv_len;
} at_cache_t;
typedef enum at_parse_status_en {
AT_PARSE_STATUS_NONE,
AT_PARSE_STATUS_NEWLINE,
AT_PARSE_STATUS_EVENT,
AT_PARSE_STATUS_EXPECT,
AT_PARSE_STATUS_OVERFLOW,
AT_PARSE_STATUS_OK,
AT_PARSE_STATUS_FAIL,
AT_PARSE_STATUS_ERROR
} at_parse_status_t;
typedef enum at_echo_status_en {
AT_ECHO_STATUS_NONE,
AT_ECHO_STATUS_OK,
AT_ECHO_STATUS_FAIL,
AT_ECHO_STATUS_ERROR,
AT_ECHO_STATUS_EXPECT,
} at_echo_status_t;
typedef enum at_channel_status_en {
AT_CHANNEL_STATUS_NONE, /*< usually means we are try to get a channel status with invalid id */
AT_CHANNEL_STATUS_HANGING, /*< channel is not used */
AT_CHANNEL_STATUS_WORKING, /*< channel is being using */
AT_CHANNEL_STATUS_BROKEN, /*< channel is broken(module link to remote server is broken) */
} at_channel_status_t;
typedef struct at_data_channel_st {
uint8_t is_free;
k_chr_fifo_t rx_fifo;
uint8_t *rx_fifo_buffer;
k_mutex_t rx_lock;
k_sem_t rx_sem;
at_channel_status_t status;
k_stopwatch_t timer;
const char *remote_ip;
const char *remote_port;
} at_data_channel_t;
typedef struct at_echo_st {
char *buffer;
size_t buffer_size;
char *echo_expect;
int line_num;
at_echo_status_t status;
size_t __w_idx;
int __is_expecting;
k_sem_t __expect_notify;
k_sem_t __status_set_notify;
int __is_fuzzy_match;
} at_echo_t;
typedef struct at_frame_len_mail_st {
uint16_t frame_len;
} at_frame_len_mail_t;
typedef void (*at_event_callback_t)(void);
typedef struct at_event_st {
const char *event_header;
at_event_callback_t event_callback;
} at_event_t;
typedef struct at_agent_st {
at_data_channel_t data_channel[AT_DATA_CHANNEL_NUM];
at_event_t *event_table;
size_t event_table_size;
at_echo_t *echo;
k_task_t parser;
at_cache_t recv_cache;
/* protected the AT agent, so only one AT instruction is executing any one time. */
k_mutex_t global_lock;
char *cmd_buf;
/* global_lock has protected the at agent, so cmd buf lock is unnecessary,
the code will be removed in next version. */
// k_mutex_t cmd_buf_lock;
hal_uart_t uart;
k_mutex_t uart_tx_lock;
// k_mutex_t uart_rx_lock;
#if AT_INPUT_TYPE_FRAME_EN
k_mail_q_t uart_rx_frame_mail;
uint8_t *uart_rx_frame_mail_buffer;
uint16_t fifo_available_len;
#else
k_sem_t uart_rx_sem;
#if AT_INPUT_SIMULATE_IDLE_EN
k_timer_t idle_check_timer;
#endif /* AT_INPUT_SIMULATE_IDLE_EN */
#endif /* AT_INPUT_TYPE_FRAME_EN */
k_chr_fifo_t uart_rx_fifo;
uint8_t *uart_rx_fifo_buffer;
} at_agent_t;
/**
* @brief Write data to a channel.
* Write data to a channel with certain id.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
* @param[in] buffer data buffer to write.
* @param[in] buffer_len length of the buffer.
*
* @return errcode
* @retval -1 write failed(error).
* @retval none -1 the number of bytes written.
*/
__API__ int tos_at_channel_write(at_agent_t *at_agent, int channel_id, uint8_t *buffer, size_t buffer_len);
/**
* @brief Read data from a channel.
* Read data from a channel with a timeout.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
* @param[out] buffer buffer to hold the data read.
* @param[in] buffer_len length of the buffer.
* @param[in] timeout timeout.
*
* @return errcode
* @retval -1 read failed(error).
* @retval none -1 the number of bytes read.
*/
__API__ int tos_at_channel_read_timed(at_agent_t *at_agent, int channel_id, uint8_t *buffer, size_t buffer_len, uint32_t timeout);
/**
* @brief Read data from a channel.
* Read data from a channel.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
* @param[out] buffer buffer to hold the data read.
* @param[in] buffer_len length of the buffer.
*
* @return errcode
* @retval -1 read failed(error).
* @retval none -1 the number of bytes read.
*/
__API__ int tos_at_channel_read(at_agent_t *at_agent, int channel_id, uint8_t *buffer, size_t buffer_len);
/**
* @brief Allocate a channel.
* Allocate a channel with certain id.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
* @param[in] ip remote ip of the channel.
* @param[in] port remote port of the channel.
*
* @return errcode
* @retval -1 allocate failed(error).
* @retval none -1 the id of the channel.
*/
__API__ int tos_at_channel_alloc_id(at_agent_t *at_agent, int channel_id, const char *ip, const char *port);
/**
* @brief Allocate a channel.
* Allocate a channel.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] ip remote ip of the channel.
* @param[in] port remote port of the channel.
*
* @return errcode
* @retval -1 allocate failed(error).
* @retval none -1 the id of the channel.
*/
__API__ int tos_at_channel_alloc(at_agent_t *at_agent, const char *ip, const char *port);
/**
* @brief Allocate a channel.
* Allocate a channel with certain socket buffer size.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
* @param[in] ip remote ip of the channel.
* @param[in] port remote port of the channel.
* @param[in] socket_buffer_size buffer size of the channel.
*
* @return errcode
* @retval -1 allocate failed(error).
* @retval none -1 the id of the channel.
*/
__API__ int tos_at_channel_alloc_with_size(at_agent_t *at_agent, const char *ip, const char *port, size_t socket_buffer_size);
/**
* @brief Free a channel.
* Free a channel with certain id.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
*
* @return errcode
* @retval -1 free failed(error).
* @retval 0 free successfully.
*/
__API__ int tos_at_channel_free(at_agent_t *at_agent, int channel_id);
/**
* @brief Set channel broken.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
*
* @return errcode
* @retval -1 set failed(error).
* @retval 0 set successfully.
*/
__API__ int tos_at_channel_set_broken(at_agent_t *at_agent, int channel_id);
/**
* @brief Judge whether channel is working.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
*
* @return at channel status(type of at_channel_status_t)
*/
__API__ int tos_at_channel_is_working(at_agent_t *at_agent, int channel_id);
/**
* @brief Initialize the at framework.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] uart_port port number of the uart thougth which the module connect to the MCU.
* @param[in] event_table the listened event table.
* @param[in] event_table_size the size of the listened event table.
*
* @return errcode
* @retval -1 initialize failed(error).
* @retval 0 initialize successfully.
*/
__API__ int tos_at_init(at_agent_t *at_agent, char *task_name, k_stack_t *stk, hal_uart_port_t uart_port, at_event_t *event_table, size_t event_table_size);
/**
* @brief De-initialize the at framework.
*
* @param[in] at_agent pointer to the at agent struct.
*
* @attention None
*
* @return
None
*/
__API__ void tos_at_deinit(at_agent_t *at_agent);
/**
* @brief Create a echo struct.
*
* @attention None
*
* @param[in] echo pointer to the echo struct.
* @param[out] buffer buffer to hold the received message from the module.
* @param[in] buffer_size size of the buffer.
* @param[in] echo_expect the expected echo message.
*
* @return errcode
* @retval -1 create failed(error).
* @retval 0 create successfully.
*/
__API__ int tos_at_echo_create(at_echo_t *echo, char *buffer, size_t buffer_size, char *echo_expect);
/**
* @brief Create a echo struct with fuzzy matching for expected echo.
*
* @attention None
*
* @param[in] echo pointer to the echo struct.
* @param[out] buffer buffer to hold the received message from the module.
* @param[in] buffer_size size of the buffer.
* @param[in] echo_expect_contains if the echo message contains echo_expect_contains, it is a matching.
*
* @return errcode
* @retval -1 create failed(error).
* @retval 0 create successfully.
*/
__API__ int tos_at_echo_fuzzy_matching_create(at_echo_t *echo, char *buffer, size_t buffer_size, char *echo_expect_contains);
/**
* @brief Execute an at command.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] echo pointer to the echo struct.
* @param[in] timeout command wait timeout .
* @param[in] cmd at command.
*
* @return errcode
* @retval -1 execute failed(error).
* @retval 0 execute successfully.
*/
__API__ int tos_at_cmd_exec(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const char *cmd, ...);
/**
* @brief Execute an at command.
* Execute an at command and wait until the expected echo message received or timeout.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] echo pointer to the echo struct.
* @param[in] timeout command wait timeout .
* @param[in] cmd at command.
*
* @return errcode
* @retval -1 execute failed(error).
* @retval 0 execute successfully.
*/
__API__ int tos_at_cmd_exec_until(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const char *cmd, ...);
/**
* @brief Send raw data througth uart.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] echo pointer to the echo struct.
* @param[in] timeout command wait timeout .
* @param[in] buf data to send.
* @param[in] size size of the buf.
*
* @return errcode
* @retval -1 execute failed(error).
* @retval 0 execute successfully.
*/
__API__ int tos_at_raw_data_send(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const uint8_t *buf, size_t size);
/**
* @brief Send raw data througth uart.
* Send raw data througth uart and wait until the expected echo message received or timeout.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] echo pointer to the echo struct.
* @param[in] timeout command wait timeout .
* @param[in] buf data to send.
* @param[in] size size of the buf.
*
* @return errcode
* @retval -1 execute failed(error).
* @retval 0 execute successfully.
*/
__API__ int tos_at_raw_data_send_until(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const uint8_t *buf, size_t size);
#if AT_INPUT_TYPE_FRAME_EN
/**
* @brief Write amount bytes to the at uart.
* The function called by the uart interrupt, to put the data from the uart to the at framework.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] pdata pointer of the uart received data.
* @param[in] len length of the uart received data.
*
* @return None
*/
__API__ void tos_at_uart_input_frame(at_agent_t *at_agent, uint8_t *pdata, uint16_t len);
#elif AT_INPUT_SIMULATE_IDLE_EN
/**
* @brief Write byte to the at uart.
* The function called by the uart receive interrupt.
*
* @attention No notification is given after writing.
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] data uart received data.
*
* @return None
*/
__API__ void tos_at_uart_input_byte_no_notify(at_agent_t *at_agent, uint8_t data);
#else
/**
* @brief Write byte to the at uart.
* The function called by the uart interrupt, to put the data from the uart to the at framework.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] data uart received data.
*
* @return None
*/
__API__ void tos_at_uart_input_byte(at_agent_t *at_agent, uint8_t data);
#endif
/**
* @brief A global lock provided by at framework.
* The lock usually used to make a atomic function.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
*
* @return errcode
* @retval -1 pend failed(error).
* @retval 0 pend successfully.
*/
__API__ int tos_at_global_lock_pend(at_agent_t *at_agent);
/**
* @brief A global lock provided by at framework.
* The lock usually used to make a atomic function.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
*
* @return errcode
* @retval -1 post failed(error).
* @retval 0 post successfully.
*/
__API__ int tos_at_global_lock_post(at_agent_t *at_agent);
/**
* @brief Read data from the uart.
* Read data from the uart, usually called in listened event callback.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[out] buffer buffer to hold the data read from the uart.
* @param[in] buffer_len length of the buffer.
*
* @return length of the data read from the uart.
*/
__API__ int tos_at_uart_read(at_agent_t *at_agent, uint8_t *buffer, size_t buffer_len);
/**
* @brief Read data from the uart.
* Read data from the uart until meet a '\n', usually called in listened event callback.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[out] buffer buffer to hold the data read from the uart.
* @param[in] buffer_len length of the buffer.
*
* @return length of the data read from the uart.
*/
__API__ int tos_at_uart_readline(at_agent_t *at_agent, uint8_t *buffer, size_t buffer_len);
/**
* @brief Read data from the uart.
* Read data from the uart until no more incoming data, usually called in listened event callback.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[out] buffer buffer to hold the data read from the uart.
* @param[in] buffer_len length of the buffer.
*
* @return length of the data read from the uart.
*/
__API__ int tos_at_uart_drain(at_agent_t *at_agent, uint8_t *buffer, size_t buffer_len);
/**
* @brief Get the remote ip of a channel.
* Get the remote ip of a channel with certain id.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
*
* @return remote ip of the channel.
*/
__API__ const char *tos_at_channel_ip_get(at_agent_t *at_agent, int channel_id);
/**
* @brief Get the remote port of a channel.
* Get the remote port of a channel with certain id.
*
* @attention None
*
* @param[in] at_agent pointer to the at agent struct.
* @param[in] channel_id id of the channel.
*
* @return remote port of the channel.
*/
__API__ const char *tos_at_channel_port_get(at_agent_t *at_agent, int channel_id);
#endif /* _TOS_AT_H_ */tos_at.c代码
c
/*----------------------------------------------------------------------------
* Tencent is pleased to support the open source community by making TencentOS
* available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* If you have downloaded a copy of the TencentOS binary from Tencent, please
* note that the TencentOS binary is licensed under the BSD 3-Clause License.
*
* If you have downloaded a copy of the TencentOS source code from Tencent,
* please note that TencentOS source code is licensed under the BSD 3-Clause
* License, except for the third-party components listed below which are
* subject to different license terms. Your integration of TencentOS into your
* own projects may require compliance with the BSD 3-Clause License, as well
* as the other licenses applicable to the third-party components included
* within TencentOS.
*---------------------------------------------------------------------------*/
/*
Note:
If you find that the AT framework occasionally loses characters,
this may be caused by the unnecessary critical section of at_channel,
so you can remove the critical section of ring_queue in tos_ring_queue.c.
Once you remove, ring queue becomes only a data structure,
you must use critical section or mutex to protect the data in ring_queue.
*/
#include "tos_at.h"
__API__ int tos_at_global_lock_pend(at_agent_t *at_agent)
{
if (tos_mutex_pend(&at_agent->global_lock) != K_ERR_NONE) {
return -1;
}
return 0;
}
__API__ int tos_at_global_lock_post(at_agent_t *at_agent)
{
if (tos_mutex_post(&at_agent->global_lock) != K_ERR_NONE) {
return -1;
}
return 0;
}
__STATIC__ int at_uart_getchar_from_fifo(at_agent_t *at_agent, uint8_t *data)
{
TOS_CPU_CPSR_ALLOC();
k_err_t err;
TOS_CPU_INT_DISABLE();
err = tos_chr_fifo_pop(&at_agent->uart_rx_fifo, data);
TOS_CPU_INT_ENABLE();
return err;
}
__STATIC__ int at_uart_getchar(at_agent_t *at_agent, uint8_t *data, k_tick_t timeout)
{
#if AT_INPUT_TYPE_FRAME_EN
at_frame_len_mail_t frame_len_mail;
size_t mail_size;
if (at_agent->fifo_available_len == 0) {
if (tos_mail_q_pend(&at_agent->uart_rx_frame_mail, &frame_len_mail, &mail_size, timeout) != K_ERR_NONE) {
return -1;
}
at_agent->fifo_available_len = frame_len_mail.frame_len;
}
if (at_uart_getchar_from_fifo(at_agent, data) != K_ERR_NONE) {
return -1;
}
at_agent->fifo_available_len -= 1;
return 0;
#elif AT_INPUT_SIMULATE_IDLE_EN
if (tos_chr_fifo_is_empty(&at_agent->uart_rx_fifo)) {
if (tos_sem_pend(&at_agent->uart_rx_sem, timeout) != K_ERR_NONE) {
return -1;
}
}
if (at_uart_getchar_from_fifo(at_agent, data) != K_ERR_NONE) {
return -1;
}
return 0;
#else
tos_stopwatch_delay(1);
if (tos_sem_pend(&at_agent->uart_rx_sem, timeout) != K_ERR_NONE) {
return -1;
}
/*
the uart_rx_fifo is only read by at_parser task,
and it will be written in usart interrupt handler,
so it is more effective to use critical sections.
*/
// if (tos_mutex_pend(&at_agent->uart_rx_lock) != K_ERR_NONE) {
// return -1;
// }
if (at_uart_getchar_from_fifo(at_agent, data) != K_ERR_NONE) {
return -1;
}
// tos_mutex_post(&at_agent->uart_rx_lock);
return 0;
#endif /* AT_INPUT_TYPE_FRAME_EN */
}
__STATIC__ at_event_t *at_event_do_get(at_agent_t *at_agent, char *buffer, size_t buffer_len)
{
int i = 0;
at_event_t *event_table = K_NULL, *event = K_NULL;
size_t event_table_size = 0, event_len;
event_table = at_agent->event_table;
event_table_size = at_agent->event_table_size;
for (i = 0; i < event_table_size; ++i) {
event = &event_table[i];
event_len = strlen(event->event_header);
if (buffer_len < event_len) {
continue;
}
if (strncmp(event->event_header, buffer, event_len) == 0) {
return event;
}
}
return K_NULL;
}
__STATIC__ at_event_t *at_get_event(at_agent_t *at_agent)
{
char *buffer;
size_t buffer_len;
at_cache_t *at_cache = K_NULL;
at_cache = &at_agent->recv_cache;
buffer = (char *)at_cache->buffer;
buffer_len = at_cache->recv_len;
return at_event_do_get(at_agent, buffer, buffer_len);
}
__API__ int tos_at_uart_read(at_agent_t *at_agent, uint8_t *buffer, size_t buffer_len)
{
uint8_t data;
size_t read_len = 0;
while (K_TRUE) {
if (at_uart_getchar(at_agent, &data, TOS_TIME_FOREVER) != 0) {
return read_len;
}
buffer[read_len++] = data;
if (read_len == buffer_len) {
return buffer_len;
}
}
}
__API__ int tos_at_uart_readline(at_agent_t *at_agent, uint8_t *buffer, size_t buffer_len)
{
uint8_t data;
size_t read_len = 0;
while (K_TRUE) {
if (at_uart_getchar(at_agent, &data, TOS_TIME_FOREVER) != 0) {
return read_len;
}
buffer[read_len++] = data;
if (data == '\n') {
return read_len;
} else if (read_len == buffer_len) {
return buffer_len;
}
}
}
__API__ int tos_at_uart_drain(at_agent_t *at_agent, uint8_t *buffer, size_t buffer_len)
{
uint8_t data;
size_t read_len = 0;
while (K_TRUE) {
if (at_uart_getchar(at_agent, &data, TOS_TIME_NOWAIT) != 0) {
return read_len;
}
buffer[read_len++] = data;
if (read_len == buffer_len) {
return buffer_len;
}
}
}
__STATIC__ int at_is_echo_expect(at_agent_t *at_agent)
{
char *recv_buffer, *expect;
size_t recv_buffer_len, expect_len;
at_echo_t *at_echo = K_NULL;
at_cache_t *at_cache = K_NULL;
at_echo = at_agent->echo;
if (!at_echo || !at_echo->echo_expect) {
return 0;
}
at_cache = &at_agent->recv_cache;
recv_buffer = (char *)at_cache->buffer;
recv_buffer_len = at_cache->recv_len;
expect = at_echo->echo_expect;
expect_len = strlen(expect);
if (recv_buffer_len < expect_len) {
return 0;
}
if (at_echo->__is_fuzzy_match) {
if (strstr(recv_buffer, expect) != NULL) {
return 0;
}
return -1;
}
if (strncmp(expect, recv_buffer, expect_len) == 0) {
return 1;
}
return 0;
}
__STATIC__ at_parse_status_t at_uart_line_parse(at_agent_t *at_agent)
{
size_t curr_len = 0;
uint8_t data, last_data = 0;
at_cache_t *recv_cache = K_NULL;
recv_cache = &at_agent->recv_cache;
recv_cache->recv_len = 0;
memset(recv_cache->buffer, 0, recv_cache->buffer_size);
while (K_TRUE) {
if (at_uart_getchar(at_agent, &data, TOS_TIME_FOREVER) != 0) {
continue;
}
// if (data == '\0') {
// continue;
// }
if (curr_len < recv_cache->buffer_size) {
recv_cache->buffer[curr_len++] = data;
recv_cache->recv_len = curr_len;
} else {
recv_cache->buffer[recv_cache->buffer_size - 1] = '\0';
return AT_PARSE_STATUS_OVERFLOW;
}
if (at_get_event(at_agent) != K_NULL) {
return AT_PARSE_STATUS_EVENT;
}
if (at_is_echo_expect(at_agent)) {
return AT_PARSE_STATUS_EXPECT;
}
AT_LOG("recv_cache:[%s](%d)\r\n", recv_cache->buffer, recv_cache->recv_len);
if (strstr((char*)recv_cache->buffer, "OK")) {
return AT_PARSE_STATUS_OK;
} else if (strstr((char*)recv_cache->buffer, "FAIL")) {
return AT_PARSE_STATUS_FAIL;
} else if (strstr((char*)recv_cache->buffer, "ERROR")) {
return AT_PARSE_STATUS_ERROR;
}
if (data == '\n' && last_data == '\r') { // 0xd 0xa
// curr_len -= 1;
// recv_cache->buffer[curr_len - 1] = '\n';
// recv_cache->recv_len = curr_len;
if (curr_len == 2) { // only a blank newline, ignore
last_data = 0;
curr_len = 0;
recv_cache->recv_len = 0;
continue;
}
return AT_PARSE_STATUS_NEWLINE;
}
last_data = data;
}
}
__STATIC__ void at_echo_buffer_copy(at_cache_t *at_cache, at_echo_t *echo)
{
uint8_t *recv_buffer = K_NULL;
size_t recv_buffer_len, copy_len, remain_len;
recv_buffer = at_cache->buffer;
recv_buffer_len = at_cache->recv_len;
remain_len = echo->buffer_size - echo->__w_idx;
if (remain_len == 0) {
return;
}
copy_len = remain_len < recv_buffer_len ? remain_len : recv_buffer_len;
memcpy(echo->buffer + echo->__w_idx, recv_buffer, copy_len);
echo->__w_idx += copy_len;
++echo->line_num;
}
__STATIC__ void at_parser(void *arg)
{
at_echo_t *at_echo = K_NULL;
at_event_t *at_event = K_NULL;
at_cache_t *recv_cache = K_NULL;
at_parse_status_t at_parse_status;
at_agent_t *at_agent = (at_agent_t *)arg;
recv_cache = &at_agent->recv_cache;
while (K_TRUE) {
at_parse_status = at_uart_line_parse(at_agent);
AT_LOG("at line parser end!(%d)\r\n", at_parse_status);
tos_kprintln("--->%s", recv_cache->buffer);
if (at_parse_status == AT_PARSE_STATUS_OVERFLOW) {
tos_kprintln("AT parse overflow!");
continue;
}
if (at_parse_status == AT_PARSE_STATUS_EVENT) {
at_event = at_get_event(at_agent);
if (at_event && at_event->event_callback) {
at_event->event_callback();
}
continue;
}
at_echo = at_agent->echo;
if (!at_echo) {
continue;
}
if (at_echo->buffer) {
at_echo_buffer_copy(recv_cache, at_echo);
}
if (at_parse_status == AT_PARSE_STATUS_EXPECT) {
at_echo->status = AT_ECHO_STATUS_EXPECT;
if (at_echo->__is_expecting) {
tos_sem_post(&at_echo->__expect_notify);
}
} else if (at_parse_status == AT_PARSE_STATUS_OK) {
at_echo->status = AT_ECHO_STATUS_OK;
if (!at_echo->__is_expecting) {
tos_sem_post(&at_echo->__status_set_notify);
}
} else if (at_parse_status == AT_PARSE_STATUS_FAIL) {
at_echo->status = AT_ECHO_STATUS_FAIL;
if (!at_echo->__is_expecting) {
tos_sem_post(&at_echo->__status_set_notify);
}
} else if (at_parse_status == AT_PARSE_STATUS_ERROR) {
at_echo->status = AT_ECHO_STATUS_ERROR;
if (!at_echo->__is_expecting) {
tos_sem_post(&at_echo->__status_set_notify);
}
}
}
}
__STATIC__ int at_uart_send(at_agent_t *at_agent, const uint8_t *buf, size_t size, uint32_t timeout)
{
int ret;
tos_mutex_pend(&at_agent->uart_tx_lock);
ret = tos_hal_uart_write(&at_agent->uart, buf, size, timeout);
tos_mutex_post(&at_agent->uart_tx_lock);
return ret;
}
__API__ int tos_at_echo_create(at_echo_t *echo, char *buffer, size_t buffer_size, char *echo_expect)
{
if (!echo) {
return -1;
}
if (buffer) {
memset(buffer, 0, buffer_size);
}
echo->buffer = buffer;
echo->buffer_size = buffer_size;
echo->echo_expect = echo_expect;
echo->line_num = 0;
echo->status = AT_ECHO_STATUS_NONE;
echo->__w_idx = 0;
echo->__is_expecting = K_FALSE;
echo->__is_fuzzy_match = K_FALSE;
return 0;
}
__API__ int tos_at_echo_fuzzy_matching_create(at_echo_t *echo, char *buffer, size_t buffer_size, char *echo_expect_contains)
{
if (!echo) {
return -1;
}
if (buffer) {
memset(buffer, 0, buffer_size);
}
echo->buffer = buffer;
echo->buffer_size = buffer_size;
echo->echo_expect = echo_expect_contains;
echo->line_num = 0;
echo->status = AT_ECHO_STATUS_NONE;
echo->__w_idx = 0;
echo->__is_expecting = K_FALSE;
echo->__is_fuzzy_match = K_TRUE;
return 0;
}
__STATIC_INLINE__ void at_echo_flush(at_echo_t *echo)
{
echo->line_num = 0;
echo->status = AT_ECHO_STATUS_NONE;
echo->__w_idx = 0;
}
__STATIC_INLINE__ void at_echo_attach(at_agent_t *at_agent, at_echo_t *echo)
{
at_echo_flush(echo);
at_agent->echo = echo;
}
__API__ int tos_at_raw_data_send(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const uint8_t *buf, size_t size)
{
int ret = 0;
if (!echo) {
return -1;
}
if (tos_at_global_lock_pend(at_agent) != 0) {
return -1;
}
at_echo_attach(at_agent, echo);
ret = at_uart_send(at_agent, buf, size, 0xFFFF);
tos_task_delay(tos_millisec2tick(timeout));
at_agent->echo = K_NULL;
tos_at_global_lock_post(at_agent);
return ret;
}
__API__ int tos_at_raw_data_send_until(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const uint8_t *buf, size_t size)
{
int ret = 0;
if (!echo || !echo->echo_expect) {
return -1;
}
if (tos_at_global_lock_pend(at_agent) != 0) {
return -1;
}
if (tos_sem_create(&echo->__expect_notify, 0) != K_ERR_NONE) {
tos_at_global_lock_post(at_agent);
return -1;
}
echo->__is_expecting = K_TRUE;
at_echo_attach(at_agent, echo);
ret = at_uart_send(at_agent, buf, size, 0xFFFF);
if (tos_sem_pend(&echo->__expect_notify, tos_millisec2tick(timeout)) != K_ERR_NONE) {
ret = -1;
}
tos_sem_destroy(&echo->__expect_notify);
at_agent->echo = K_NULL;
tos_at_global_lock_post(at_agent);
return ret;
}
__STATIC__ int at_cmd_do_exec(at_agent_t *at_agent, const char *format, va_list args)
{
size_t cmd_len = 0;
// if (tos_mutex_pend(&at_agent->cmd_buf_lock) != K_ERR_NONE) {
// return -1;
// }
cmd_len = vsnprintf(at_agent->cmd_buf, AT_CMD_BUFFER_SIZE, format, args);
tos_kprintln("AT CMD:\n%s\n", at_agent->cmd_buf);
at_uart_send(at_agent, (uint8_t *)at_agent->cmd_buf, cmd_len, 0xFFFF);
// tos_mutex_post(&at_agent->cmd_buf_lock);
return 0;
}
__API__ int tos_at_cmd_exec(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const char *cmd, ...)
{
int ret = 0;
va_list args;
if (!echo) {
return -1;
}
if (tos_at_global_lock_pend(at_agent) != 0) {
return -1;
}
if (tos_sem_create(&echo->__status_set_notify, 0) != K_ERR_NONE) {
tos_at_global_lock_post(at_agent);
return -1;
}
at_echo_attach(at_agent, echo);
va_start(args, cmd);
ret = at_cmd_do_exec(at_agent, cmd, args);
va_end(args);
if (ret != 0) {
at_agent->echo = K_NULL;
tos_at_global_lock_post(at_agent);
return -1;
}
if (tos_sem_pend(&echo->__status_set_notify, tos_millisec2tick(timeout)) != K_ERR_NONE) {
ret = -1;
}
tos_sem_destroy(&echo->__status_set_notify);
at_agent->echo = K_NULL;
tos_at_global_lock_post(at_agent);
return ret;
}
__API__ int tos_at_cmd_exec_until(at_agent_t *at_agent, at_echo_t *echo, uint32_t timeout, const char *cmd, ...)
{
int ret = 0;
va_list args;
if (!echo || !echo->echo_expect) {
return -1;
}
if (tos_at_global_lock_pend(at_agent) != 0) {
return -1;
}
if (tos_sem_create(&echo->__expect_notify, 0) != K_ERR_NONE) {
tos_at_global_lock_post(at_agent);
return -1;
}
echo->__is_expecting = K_TRUE;
at_echo_attach(at_agent, echo);
va_start(args, cmd);
ret = at_cmd_do_exec(at_agent, cmd, args);
va_end(args);
if (ret != 0) {
at_agent->echo = K_NULL;
tos_at_global_lock_post(at_agent);
return -1;
}
if (tos_sem_pend(&echo->__expect_notify, tos_millisec2tick(timeout)) != K_ERR_NONE) {
ret = -1;
}
tos_sem_destroy(&echo->__expect_notify);
at_agent->echo = K_NULL;
tos_at_global_lock_post(at_agent);
return ret;
}
__STATIC__ int at_recv_cache_init(at_agent_t *at_agent)
{
uint8_t *buffer = K_NULL;
buffer = tos_mmheap_alloc(AT_RECV_CACHE_SIZE);
if (!buffer) {
at_agent->recv_cache.buffer = K_NULL;
return - 1;
}
at_agent->recv_cache.buffer = buffer;
at_agent->recv_cache.buffer_size = AT_RECV_CACHE_SIZE;
at_agent->recv_cache.recv_len = 0;
return 0;
}
__STATIC__ void at_recv_cache_deinit(at_agent_t *at_agent)
{
uint8_t *buffer = K_NULL;
buffer = at_agent->recv_cache.buffer;
if (buffer) {
tos_mmheap_free(buffer);
}
at_agent->recv_cache.buffer = K_NULL;
at_agent->recv_cache.buffer_size = 0;
at_agent->recv_cache.recv_len = 0;
}
__STATIC__ at_data_channel_t *at_channel_get(at_agent_t *at_agent, int channel_id, int is_alloc)
{
/*
if is_alloc is K_TRUE, means we are allocating a channel with certain id,
data_channel[channel_id] must be free if return none K_NULL.
otherwise if is_alloc is K_FALSE, means we are trying to get a channel with
certain id, data_channel[channel_id] must be not free if return none K_NULL.
*/
at_data_channel_t *data_channel = K_NULL;
if (channel_id < 0 || channel_id >= AT_DATA_CHANNEL_NUM) {
return K_NULL;
}
data_channel = &at_agent->data_channel[channel_id];
if (is_alloc && data_channel->is_free) {
return data_channel;
}
if (!is_alloc && !data_channel->is_free) {
return data_channel;
}
return K_NULL;
}
__API__ int tos_at_channel_read(at_agent_t *at_agent, int channel_id, uint8_t *buffer, size_t buffer_len)
{
int read_len;
size_t total_read_len = 0;
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel || data_channel->status == AT_CHANNEL_STATUS_BROKEN) {
return -1;
}
while (K_TRUE) {
if (tos_mutex_pend(&data_channel->rx_lock) != K_ERR_NONE) {
return total_read_len;
}
read_len = tos_chr_fifo_pop_stream(&data_channel->rx_fifo, buffer, buffer_len);
tos_mutex_post(&data_channel->rx_lock);
total_read_len += read_len;
if (total_read_len < buffer_len) {
continue;
} else {
return buffer_len;
}
}
}
__API__ int tos_at_channel_read_timed(at_agent_t *at_agent, int channel_id, uint8_t *buffer, size_t buffer_len, uint32_t timeout)
{
int read_len = 0;
size_t total_read_len = 0;
k_tick_t remain_tick;
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel || data_channel->status == AT_CHANNEL_STATUS_BROKEN) {
return -1;
}
remain_tick = tos_millisec2tick(timeout);
tos_stopwatch_countdown(&data_channel->timer, remain_tick);
while (!tos_stopwatch_is_expired(&data_channel->timer)) {
remain_tick = tos_stopwatch_remain(&data_channel->timer);
if (remain_tick == (k_tick_t)0u) {
return total_read_len;
}
if (tos_mutex_pend_timed(&data_channel->rx_lock, remain_tick) != K_ERR_NONE) {
return total_read_len;
}
read_len = tos_chr_fifo_pop_stream(&data_channel->rx_fifo, buffer + total_read_len, buffer_len - total_read_len);
tos_mutex_post(&data_channel->rx_lock);
if (read_len == 0) {
remain_tick = tos_stopwatch_remain(&data_channel->timer);
tos_sem_pend(&data_channel->rx_sem, remain_tick);
}
total_read_len += read_len;
if (total_read_len < buffer_len) {
continue;
} else {
return buffer_len;
}
}
return total_read_len;
}
__API__ int tos_at_channel_write(at_agent_t *at_agent, int channel_id, uint8_t *buffer, size_t buffer_len)
{
int ret;
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel) {
return -1;
}
if (tos_mutex_pend(&data_channel->rx_lock) != K_ERR_NONE) {
return -1;
}
ret = tos_chr_fifo_push_stream(&data_channel->rx_fifo, buffer, buffer_len);
tos_mutex_post(&data_channel->rx_lock);
tos_sem_post(&data_channel->rx_sem);
return ret;
}
__STATIC_INLINE__ int at_channel_construct(at_data_channel_t *data_channel, const char *ip, const char *port, size_t socket_buffer_size)
{
uint8_t *fifo_buffer = K_NULL;
fifo_buffer = tos_mmheap_alloc(socket_buffer_size);
if (!fifo_buffer) {
return -1;
}
if (tos_sem_create_max(&data_channel->rx_sem, 0, 1) != K_ERR_NONE) {
goto errout;
}
if (tos_mutex_create(&data_channel->rx_lock) != K_ERR_NONE) {
goto errout;
}
if (tos_stopwatch_create(&data_channel->timer) != K_ERR_NONE) {
goto errout;
}
data_channel->rx_fifo_buffer = fifo_buffer;
tos_chr_fifo_create(&data_channel->rx_fifo, fifo_buffer, socket_buffer_size);
data_channel->remote_ip = ip;
data_channel->remote_port = port;
data_channel->is_free = K_FALSE;
data_channel->status = AT_CHANNEL_STATUS_WORKING;
return 0;
errout:
tos_mmheap_free(fifo_buffer);
return -1;
}
__API__ int tos_at_channel_alloc_id(at_agent_t *at_agent, int channel_id, const char *ip, const char *port)
{
at_data_channel_t *data_channel = K_NULL;
size_t socket_buffer_size = 0;
data_channel = at_channel_get(at_agent, channel_id, K_TRUE);
if (!data_channel) {
return -1;
}
socket_buffer_size = AT_DATA_CHANNEL_FIFO_BUFFER_DEFAULT_SIZE;
if (at_channel_construct(data_channel, ip, port, socket_buffer_size) != 0) {
return -1;
}
return channel_id;
}
__API__ int tos_at_channel_alloc(at_agent_t *at_agent, const char *ip, const char *port)
{
int id = 0;
at_data_channel_t *data_channel = K_NULL;
size_t socket_buffer_size = 0;
for (id = 0; id < AT_DATA_CHANNEL_NUM; ++id) {
data_channel = &at_agent->data_channel[id];
if (data_channel->is_free) {
break;
}
}
if (id == AT_DATA_CHANNEL_NUM || !data_channel) {
return -1;
}
socket_buffer_size = AT_DATA_CHANNEL_FIFO_BUFFER_DEFAULT_SIZE;
if (at_channel_construct(data_channel, ip, port, socket_buffer_size) != 0) {
return -1;
}
return id;
}
__API__ int tos_at_channel_alloc_with_size(at_agent_t *at_agent, const char *ip, const char *port, size_t socket_buffer_size)
{
int id = 0;
at_data_channel_t *data_channel = K_NULL;
for (id = 0; id < AT_DATA_CHANNEL_NUM; ++id) {
data_channel = &at_agent->data_channel[id];
if (data_channel->is_free) {
break;
}
}
if (id == AT_DATA_CHANNEL_NUM || !data_channel) {
return -1;
}
if (at_channel_construct(data_channel, ip, port, socket_buffer_size) != 0) {
return -1;
}
return id;
}
__API__ int tos_at_channel_free(at_agent_t *at_agent, int channel_id)
{
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel) {
return -1;
}
tos_sem_destroy(&data_channel->rx_sem);
tos_mutex_destroy(&data_channel->rx_lock);
tos_stopwatch_destroy(&data_channel->timer);
tos_mmheap_free(data_channel->rx_fifo_buffer);
tos_chr_fifo_destroy(&data_channel->rx_fifo);
memset(data_channel, 0, sizeof(at_data_channel_t));
data_channel->is_free = K_TRUE;
data_channel->status = AT_CHANNEL_STATUS_HANGING;
return 0;
}
__API__ int tos_at_channel_set_broken(at_agent_t *at_agent, int channel_id)
{
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel) {
return -1;
}
data_channel->status = AT_CHANNEL_STATUS_BROKEN;
return 0;
}
__API__ int tos_at_channel_is_working(at_agent_t *at_agent, int channel_id)
{
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
return data_channel && data_channel->status == AT_CHANNEL_STATUS_WORKING;
}
__STATIC__ void at_channel_init(at_agent_t *at_agent)
{
int i = 0;
for (i = 0; i < AT_DATA_CHANNEL_NUM; ++i) {
memset(&at_agent->data_channel[i], 0, sizeof(at_data_channel_t));
at_agent->data_channel[i].is_free = K_TRUE;
at_agent->data_channel[i].status = AT_CHANNEL_STATUS_HANGING;
}
}
__STATIC__ void at_channel_deinit(at_agent_t *at_agent)
{
int i = 0;
for (i = 0; i < AT_DATA_CHANNEL_NUM; ++i) {
tos_at_channel_free(at_agent, i);
}
}
__API__ const char *tos_at_channel_ip_get(at_agent_t *at_agent, int channel_id)
{
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel) {
return K_NULL;
}
return data_channel->remote_ip;
}
__API__ const char *tos_at_channel_port_get(at_agent_t *at_agent, int channel_id)
{
at_data_channel_t *data_channel = K_NULL;
data_channel = at_channel_get(at_agent, channel_id, K_FALSE);
if (!data_channel) {
return K_NULL;
}
return data_channel->remote_port;
}
__STATIC__ void at_event_table_set(at_agent_t *at_agent, at_event_t *event_table, size_t event_table_size)
{
at_agent->event_table = event_table;
at_agent->event_table_size = event_table_size;
}
#if AT_INPUT_SIMULATE_IDLE_EN
__STATIC__ void tos_at_uart_input_notify(at_agent_t *at_agent)
{
tos_sem_post(&at_agent->uart_rx_sem);
}
__STATIC__ void idle_check_timer_callback(void *args)
{
at_agent_t *at_agent = (at_agent_t *)args;
tos_at_uart_input_notify(at_agent);
}
#endif /* #if AT_INPUT_SIMULATE_IDLE_EN */
__API__ int tos_at_init(at_agent_t *at_agent, char *task_name, k_stack_t *stk, hal_uart_port_t uart_port, at_event_t *event_table, size_t event_table_size)
{
void *buffer = K_NULL;
memset(at_agent, 0, sizeof(at_agent_t));
at_event_table_set(at_agent, event_table, event_table_size);
at_channel_init(at_agent);
buffer = tos_mmheap_alloc(AT_UART_RX_FIFO_BUFFER_SIZE);
if (!buffer) {
return -1;
}
at_agent->uart_rx_fifo_buffer = (uint8_t *)buffer;
tos_chr_fifo_create(&at_agent->uart_rx_fifo, buffer, AT_UART_RX_FIFO_BUFFER_SIZE);
buffer = tos_mmheap_alloc(AT_CMD_BUFFER_SIZE);
if (!buffer) {
goto errout0;
}
at_agent->cmd_buf = (char *)buffer;
// if (tos_mutex_create(&at_agent->cmd_buf_lock) != K_ERR_NONE) {
// goto errout1;
// }
if (at_recv_cache_init(at_agent) != 0) {
goto errout2;
}
#if AT_INPUT_TYPE_FRAME_EN
buffer = tos_mmheap_alloc(AT_FRAME_LEN_MAIL_MAX * sizeof(at_frame_len_mail_t));
if (!buffer) {
goto errout3;
}
at_agent->uart_rx_frame_mail_buffer = (uint8_t *)buffer;
if (tos_mail_q_create(&at_agent->uart_rx_frame_mail, buffer, AT_FRAME_LEN_MAIL_MAX, sizeof(at_frame_len_mail_t)) != K_ERR_NONE) {
goto errout4;
}
#else
if (tos_sem_create(&at_agent->uart_rx_sem, (k_sem_cnt_t)0u) != K_ERR_NONE) {
goto errout3;
}
#endif /* AT_INPUT_TYPE_FRAME_EN */
// if (tos_mutex_create(&at_agent->uart_rx_lock) != K_ERR_NONE) {
// goto errout5;
// }
if (tos_mutex_create(&at_agent->uart_tx_lock) != K_ERR_NONE) {
goto errout6;
}
if (tos_mutex_create(&at_agent->global_lock) != K_ERR_NONE) {
goto errout7;
}
#if AT_INPUT_SIMULATE_IDLE_EN
if (tos_timer_create(&at_agent->idle_check_timer, SIMULATE_IDLE_DEFAULT_TIME,
0, idle_check_timer_callback, at_agent, TOS_OPT_TIMER_ONESHOT) != K_ERR_NONE) {
goto errout8;
}
#endif /* AT_INPUT_SIMULATE_IDLE_EN */
if (tos_hal_uart_init(&at_agent->uart, uart_port) != 0) {
goto errout9;
}
if (tos_task_create(&at_agent->parser, task_name, at_parser,
at_agent, AT_PARSER_TASK_PRIO, stk,
AT_PARSER_TASK_STACK_SIZE, 0) != K_ERR_NONE) {
goto errout10;
}
return 0;
errout10:
tos_hal_uart_deinit(&at_agent->uart);
errout9:
#if AT_INPUT_SIMULATE_IDLE_EN
tos_timer_destroy(&at_agent->idle_check_timer);
errout8:
#endif /* AT_INPUT_SIMULATE_IDLE_EN */
tos_mutex_destroy(&at_agent->global_lock);
errout7:
tos_mutex_destroy(&at_agent->uart_tx_lock);
errout6:
// tos_mutex_destroy(&at_agent->uart_rx_lock);
//errout5:
#if AT_INPUT_TYPE_FRAME_EN
tos_mail_q_destroy(&at_agent->uart_rx_frame_mail);
#else
tos_sem_destroy(&at_agent->uart_rx_sem);
#endif /* AT_INPUT_TYPE_FRAME_EN */
#if AT_INPUT_TYPE_FRAME_EN
errout4:
tos_mmheap_free(at_agent->uart_rx_frame_mail_buffer);
at_agent->uart_rx_frame_mail_buffer = K_NULL;
#endif /* AT_INPUT_TYPE_FRAME_EN */
errout3:
at_recv_cache_deinit(at_agent);
errout2:
// tos_mutex_destroy(&at_agent->cmd_buf_lock);
//errout1:
tos_mmheap_free(at_agent->cmd_buf);
at_agent->cmd_buf = K_NULL;
errout0:
tos_mmheap_free(at_agent->uart_rx_fifo_buffer);
at_agent->uart_rx_fifo_buffer = K_NULL;
tos_chr_fifo_destroy(&at_agent->uart_rx_fifo);
return -1;
}
__API__ void tos_at_deinit(at_agent_t *at_agent)
{
tos_task_destroy(&at_agent->parser);
tos_hal_uart_deinit(&at_agent->uart);
tos_mutex_destroy(&at_agent->global_lock);
tos_mutex_destroy(&at_agent->uart_tx_lock);
//tos_mutex_destroy(&at_agent->uart_tx_lock);
#if AT_INPUT_SIMULATE_IDLE_EN
tos_timer_destroy(&at_agent->idle_check_timer);
#endif /* AT_INPUT_SIMULATE_IDLE_EN */
#if AT_INPUT_TYPE_FRAME_EN
tos_mail_q_destroy(&at_agent->uart_rx_frame_mail);
tos_mmheap_free(at_agent->uart_rx_frame_mail_buffer);
at_agent->uart_rx_frame_mail_buffer = K_NULL;
#else
tos_sem_destroy(&at_agent->uart_rx_sem);
#endif /* AT_INPUT_TYPE_FRAME_EN */
at_recv_cache_deinit(at_agent);
// tos_mutex_destroy(&at_agent->cmd_buf_lock);
tos_mmheap_free(at_agent->cmd_buf);
at_agent->cmd_buf = K_NULL;
tos_mmheap_free(at_agent->uart_rx_fifo_buffer);
at_agent->uart_rx_fifo_buffer = K_NULL;
tos_chr_fifo_destroy(&at_agent->uart_rx_fifo);
at_channel_deinit(at_agent);
}
/* To completely decouple the uart intterupt and at agent, we need a more powerful
hal(driver framework), that would be a huge work, we place it in future plans. */
#if AT_INPUT_TYPE_FRAME_EN
__API__ void tos_at_uart_input_frame(at_agent_t *at_agent, uint8_t *pdata, uint16_t len)
{
int ret;
at_frame_len_mail_t at_frame_len_mail;
ret = tos_chr_fifo_push_stream(&at_agent->uart_rx_fifo, pdata, len);
if (ret != len) {
return;
}
at_frame_len_mail.frame_len = len;
tos_mail_q_post(&at_agent->uart_rx_frame_mail, &at_frame_len_mail, sizeof(at_frame_len_mail_t));
}
#elif AT_INPUT_SIMULATE_IDLE_EN
__API__ void tos_at_uart_input_byte_no_notify(at_agent_t *at_agent, uint8_t data)
{
tos_timer_stop(&at_agent->idle_check_timer);
tos_chr_fifo_push(&at_agent->uart_rx_fifo, data);
tos_timer_start(&at_agent->idle_check_timer);
}
#else
__API__ void tos_at_uart_input_byte(at_agent_t *at_agent, uint8_t data)
{
if (tos_chr_fifo_push(&at_agent->uart_rx_fifo, data) == K_ERR_NONE) {
tos_sem_post(&at_agent->uart_rx_sem);
}
}
#endif /* AT_INPUT_TYPE_FRAME_EN or AT_INPUT_SIMULATE_IDLE_EN */