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andy
2025-06-27 00:32:57 +08:00
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121
Project/Src/rt-thread/components/net/at/src/at_base_cmd.c Normal file
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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-04-01 armink first version
* 2018-04-04 chenyong add base commands
*/
#include <at.h>
#include <stdlib.h>
#include <string.h>
#include <rtdevice.h>
#ifdef AT_USING_SERVER
#define AT_ECHO_MODE_CLOSE 0
#define AT_ECHO_MODE_OPEN 1
extern at_server_t at_get_server(void);
static at_result_t at_exec(void)
{
return AT_RESULT_OK;
}
AT_CMD_EXPORT("AT", RT_NULL, RT_NULL, RT_NULL, RT_NULL, at_exec);
static at_result_t atz_exec(void)
{
at_server_printfln("OK");
at_port_factory_reset();
return AT_RESULT_NULL;
}
AT_CMD_EXPORT("ATZ", RT_NULL, RT_NULL, RT_NULL, RT_NULL, atz_exec);
static at_result_t at_rst_exec(void)
{
at_server_printfln("OK");
at_port_reset();
return AT_RESULT_NULL;
}
AT_CMD_EXPORT("AT+RST", RT_NULL, RT_NULL, RT_NULL, RT_NULL, at_rst_exec);
static at_result_t ate_setup(const char *args)
{
int echo_mode = atoi(args);
if(echo_mode == AT_ECHO_MODE_CLOSE || echo_mode == AT_ECHO_MODE_OPEN)
{
at_get_server()->echo_mode = echo_mode;
}
else
{
return AT_RESULT_FAILE;
}
return AT_RESULT_OK;
}
AT_CMD_EXPORT("ATE", "<value>", RT_NULL, RT_NULL, ate_setup, RT_NULL);
static at_result_t at_show_cmd_exec(void)
{
extern void rt_at_server_print_all_cmd(void);
rt_at_server_print_all_cmd();
return AT_RESULT_OK;
}
AT_CMD_EXPORT("AT&L", RT_NULL, RT_NULL, RT_NULL, RT_NULL, at_show_cmd_exec);
static at_result_t at_uart_query(void)
{
struct rt_serial_device *serial = (struct rt_serial_device *)at_get_server()->device;
at_server_printfln("AT+UART=%d,%d,%d,%d,%d", serial->config.baud_rate, serial->config.data_bits,
serial->config.stop_bits, serial->config.parity, 1);
return AT_RESULT_OK;
}
static at_result_t at_uart_setup(const char *args)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
int baudrate, databits, stopbits, parity, flow_control, argc;
const char *req_expr = "=%d,%d,%d,%d,%d";
argc = at_req_parse_args(args, req_expr, &baudrate, &databits, &stopbits, &parity, &flow_control);
if (argc != 5)
{
return AT_RESULT_PARSE_FAILE;
}
at_server_printfln("UART baudrate : %d", baudrate);
at_server_printfln("UART databits : %d", databits);
at_server_printfln("UART stopbits : %d", stopbits);
at_server_printfln("UART parity : %d", parity);
at_server_printfln("UART control : %d", flow_control);
config.baud_rate = baudrate;
config.data_bits = databits;
config.stop_bits = stopbits;
config.parity = parity;
if(rt_device_control(at_get_server()->device, RT_DEVICE_CTRL_CONFIG, &config) != RT_EOK)
{
return AT_RESULT_FAILE;
}
return AT_RESULT_OK;
}
AT_CMD_EXPORT("AT+UART", "=<baudrate>,<databits>,<stopbits>,<parity>,<flow_control>", RT_NULL, at_uart_query, at_uart_setup, RT_NULL);
#endif /* AT_USING_SERVER */

335
Project/Src/rt-thread/components/net/at/src/at_cli.c Normal file
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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-04-02 armink first version
*/
#include <at.h>
#include <stdio.h>
#include <string.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <rthw.h>
#ifdef AT_USING_CLI
#define AT_CLI_FIFO_SIZE 256
static struct rt_semaphore console_rx_notice;
static struct rt_ringbuffer *console_rx_fifo = RT_NULL;
static rt_err_t (*odev_rx_ind)(rt_device_t dev, rt_size_t size) = RT_NULL;
#ifdef AT_USING_CLIENT
static struct rt_semaphore client_rx_notice;
static struct rt_ringbuffer *client_rx_fifo = RT_NULL;
#endif
static char console_getchar(void)
{
char ch;
rt_sem_take(&console_rx_notice, RT_WAITING_FOREVER);
rt_ringbuffer_getchar(console_rx_fifo, (rt_uint8_t *)&ch);
return ch;
}
static rt_err_t console_getchar_rx_ind(rt_device_t dev, rt_size_t size)
{
uint8_t ch;
rt_size_t i;
for (i = 0; i < size; i++)
{
/* read a char */
if (rt_device_read(dev, 0, &ch, 1))
{
rt_ringbuffer_put_force(console_rx_fifo, &ch, 1);
rt_sem_release(&console_rx_notice);
}
}
return RT_EOK;
}
void at_cli_init(void)
{
rt_base_t int_lvl;
rt_device_t console;
rt_sem_init(&console_rx_notice, "cli_c", 0, RT_IPC_FLAG_FIFO);
/* create RX FIFO */
console_rx_fifo = rt_ringbuffer_create(AT_CLI_FIFO_SIZE);
/* created must success */
RT_ASSERT(console_rx_fifo);
int_lvl = rt_hw_interrupt_disable();
console = rt_console_get_device();
if (console)
{
/* backup RX indicate */
odev_rx_ind = console->rx_indicate;
rt_device_set_rx_indicate(console, console_getchar_rx_ind);
}
rt_hw_interrupt_enable(int_lvl);
}
void at_cli_deinit(void)
{
rt_base_t int_lvl;
rt_device_t console;
int_lvl = rt_hw_interrupt_disable();
console = rt_console_get_device();
if (console && odev_rx_ind)
{
/* restore RX indicate */
rt_device_set_rx_indicate(console, odev_rx_ind);
}
rt_hw_interrupt_enable(int_lvl);
rt_sem_detach(&console_rx_notice);
rt_ringbuffer_destroy(console_rx_fifo);
}
#ifdef AT_USING_SERVER
static void server_cli_parser(void)
{
extern at_server_t at_get_server(void);
at_server_t server = at_get_server();
rt_base_t int_lvl;
static rt_device_t device_bak;
static char (*getchar_bak)(void);
static char endmark_back[AT_END_MARK_LEN];
/* backup server device and getchar function */
{
int_lvl = rt_hw_interrupt_disable();
device_bak = server->device;
getchar_bak = server->get_char;
memset(endmark_back, 0x00, AT_END_MARK_LEN);
memcpy(endmark_back, server->end_mark, strlen(server->end_mark));
/* setup server device as console device */
server->device = rt_console_get_device();
server->get_char = console_getchar;
memset(server->end_mark, 0x00, AT_END_MARK_LEN);
server->end_mark[0] = '\r';
rt_hw_interrupt_enable(int_lvl);
}
if (server)
{
rt_kprintf("======== Welcome to using RT-Thread AT command server cli ========\n");
rt_kprintf("Input your at command for test server. Press 'ESC' to exit.\n");
server->parser_entry(server);
}
else
{
rt_kprintf("AT client not initialized\n");
}
/* restore server device and getchar function */
{
int_lvl = rt_hw_interrupt_disable();
server->device = device_bak;
server->get_char = getchar_bak;
memset(server->end_mark, 0x00, AT_END_MARK_LEN);
memcpy(server->end_mark, endmark_back, strlen(endmark_back));
rt_hw_interrupt_enable(int_lvl);
}
}
#endif /* AT_USING_SERVER */
#ifdef AT_USING_CLIENT
static char client_getchar(void)
{
char ch;
rt_sem_take(&client_rx_notice, RT_WAITING_FOREVER);
rt_ringbuffer_getchar(client_rx_fifo, (rt_uint8_t *)&ch);
return ch;
}
static void at_client_entry(void *param)
{
char ch;
while(1)
{
ch = client_getchar();
rt_kprintf("%c", ch);
}
}
static rt_err_t client_getchar_rx_ind(rt_device_t dev, rt_size_t size)
{
uint8_t ch;
rt_size_t i;
for (i = 0; i < size; i++)
{
/* read a char */
if (rt_device_read(dev, 0, &ch, 1))
{
rt_ringbuffer_put_force(client_rx_fifo, &ch, 1);
rt_sem_release(&client_rx_notice);
}
}
return RT_EOK;
}
static void client_cli_parser(at_client_t client)
{
#define ESC_KEY 0x1B
#define BACKSPACE_KEY 0x08
#define DELECT_KEY 0x7F
char ch;
char cur_line[FINSH_CMD_SIZE] = { 0 };
rt_size_t cur_line_len = 0;
static rt_err_t (*client_odev_rx_ind)(rt_device_t dev, rt_size_t size) = RT_NULL;
rt_base_t int_lvl;
rt_thread_t at_client;
if (client)
{
/* backup client device RX indicate */
{
int_lvl = rt_hw_interrupt_disable();
client_odev_rx_ind = client->device->rx_indicate;
rt_device_set_rx_indicate(client->device, client_getchar_rx_ind);
rt_hw_interrupt_enable(int_lvl);
}
rt_sem_init(&client_rx_notice, "cli_r", 0, RT_IPC_FLAG_FIFO);
client_rx_fifo = rt_ringbuffer_create(AT_CLI_FIFO_SIZE);
at_client = rt_thread_create("at_cli", at_client_entry, RT_NULL, 512, 8, 8);
if (client_rx_fifo && at_client)
{
rt_kprintf("======== Welcome to using RT-Thread AT command client cli ========\n");
rt_kprintf("Cli will forward your command to server port(%s). Press 'ESC' to exit.\n", client->device->parent.name);
rt_thread_startup(at_client);
/* process user input */
while (ESC_KEY != (ch = console_getchar()))
{
if (ch == BACKSPACE_KEY || ch == DELECT_KEY)
{
if (cur_line_len)
{
cur_line[--cur_line_len] = 0;
rt_kprintf("\b \b");
}
continue;
}
else if (ch == '\r' || ch == '\n')
{
/* execute a AT request */
if (cur_line_len)
{
rt_kprintf("\n");
at_obj_exec_cmd(client, RT_NULL, "%.*s", cur_line_len, cur_line);
}
cur_line_len = 0;
}
else
{
rt_kprintf("%c", ch);
cur_line[cur_line_len++] = ch;
}
}
/* restore client device RX indicate */
{
int_lvl = rt_hw_interrupt_disable();
rt_device_set_rx_indicate(client->device, client_odev_rx_ind);
rt_hw_interrupt_enable(int_lvl);
}
rt_thread_delete(at_client);
rt_sem_detach(&client_rx_notice);
rt_ringbuffer_destroy(client_rx_fifo);
}
else
{
rt_kprintf("No mem for AT cli client\n");
}
}
else
{
rt_kprintf("AT client not initialized\n");
}
}
#endif /* AT_USING_CLIENT */
static void at(int argc, char **argv)
{
if (argc != 2 && argc != 3)
{
rt_kprintf("Please input '<server|client [dev_name]>' \n");
return;
}
at_cli_init();
if (!strcmp(argv[1], "server"))
{
#ifdef AT_USING_SERVER
server_cli_parser();
#else
rt_kprintf("Not support AT server, please check your configure!\n");
#endif /* AT_USING_SERVER */
}
else if (!strcmp(argv[1], "client"))
{
#ifdef AT_USING_CLIENT
at_client_t client = RT_NULL;
if (argc == 2)
{
client_cli_parser(at_client_get_first());
}
else if (argc == 3)
{
client = at_client_get(argv[2]);
if (client == RT_NULL)
{
rt_kprintf("input AT client device name(%s) error.\n", argv[2]);
}
else
{
client_cli_parser(client);
}
}
#else
rt_kprintf("Not support AT client, please check your configure!\n");
#endif /* AT_USING_CLIENT */
}
else
{
rt_kprintf("Please input '<server|client [dev_name]>' \n");
}
at_cli_deinit();
}
MSH_CMD_EXPORT(at, RT-Thread AT component cli: at <server|client [dev_name]>);
#endif /* AT_USING_CLI */

918
Project/Src/rt-thread/components/net/at/src/at_client.c Normal file
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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-03-30 chenyong first version
* 2018-04-12 chenyong add client implement
* 2018-08-17 chenyong multiple client support
*/
#include <at.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define LOG_TAG "at.clnt"
#include <at_log.h>
#ifdef AT_USING_CLIENT
#define AT_RESP_END_OK "OK"
#define AT_RESP_END_ERROR "ERROR"
#define AT_RESP_END_FAIL "FAIL"
#define AT_END_CR_LF "\r\n"
static struct at_client at_client_table[AT_CLIENT_NUM_MAX] = { 0 };
extern rt_size_t at_vprintfln(rt_device_t device, const char *format, va_list args);
extern void at_print_raw_cmd(const char *type, const char *cmd, rt_size_t size);
extern const char *at_get_last_cmd(rt_size_t *cmd_size);
/**
* Create response object.
*
* @param buf_size the maximum response buffer size
* @param line_num the number of setting response lines
* = 0: the response data will auto return when received 'OK' or 'ERROR'
* != 0: the response data will return when received setting lines number data
* @param timeout the maximum response time
*
* @return != RT_NULL: response object
* = RT_NULL: no memory
*/
at_response_t at_create_resp(rt_size_t buf_size, rt_size_t line_num, rt_int32_t timeout)
{
at_response_t resp = RT_NULL;
resp = (at_response_t) rt_calloc(1, sizeof(struct at_response));
if (resp == RT_NULL)
{
LOG_E("AT create response object failed! No memory for response object!");
return RT_NULL;
}
resp->buf = (char *) rt_calloc(1, buf_size);
if (resp->buf == RT_NULL)
{
LOG_E("AT create response object failed! No memory for response buffer!");
rt_free(resp);
return RT_NULL;
}
resp->buf_size = buf_size;
resp->line_num = line_num;
resp->line_counts = 0;
resp->timeout = timeout;
return resp;
}
/**
* Delete and free response object.
*
* @param resp response object
*/
void at_delete_resp(at_response_t resp)
{
if (resp && resp->buf)
{
rt_free(resp->buf);
}
if (resp)
{
rt_free(resp);
resp = RT_NULL;
}
}
/**
* Set response object information
*
* @param resp response object
* @param buf_size the maximum response buffer size
* @param line_num the number of setting response lines
* = 0: the response data will auto return when received 'OK' or 'ERROR'
* != 0: the response data will return when received setting lines number data
* @param timeout the maximum response time
*
* @return != RT_NULL: response object
* = RT_NULL: no memory
*/
at_response_t at_resp_set_info(at_response_t resp, rt_size_t buf_size, rt_size_t line_num, rt_int32_t timeout)
{
RT_ASSERT(resp);
if (resp->buf_size != buf_size)
{
resp->buf_size = buf_size;
resp->buf = (char *) rt_realloc(resp->buf, buf_size);
if (!resp->buf)
{
LOG_D("No memory for realloc response buffer size(%d).", buf_size);
return RT_NULL;
}
}
resp->line_num = line_num;
resp->timeout = timeout;
return resp;
}
/**
* Get one line AT response buffer by line number.
*
* @param resp response object
* @param resp_line line number, start from '1'
*
* @return != RT_NULL: response line buffer
* = RT_NULL: input response line error
*/
const char *at_resp_get_line(at_response_t resp, rt_size_t resp_line)
{
char *resp_buf = resp->buf;
char *resp_line_buf = RT_NULL;
rt_size_t line_num = 1;
RT_ASSERT(resp);
if (resp_line > resp->line_counts || resp_line <= 0)
{
LOG_E("AT response get line failed! Input response line(%d) error!", resp_line);
return RT_NULL;
}
for (line_num = 1; line_num <= resp->line_counts; line_num++)
{
if (resp_line == line_num)
{
resp_line_buf = resp_buf;
return resp_line_buf;
}
resp_buf += strlen(resp_buf) + 1;
}
return RT_NULL;
}
/**
* Get one line AT response buffer by keyword
*
* @param resp response object
* @param keyword query keyword
*
* @return != RT_NULL: response line buffer
* = RT_NULL: no matching data
*/
const char *at_resp_get_line_by_kw(at_response_t resp, const char *keyword)
{
char *resp_buf = resp->buf;
char *resp_line_buf = RT_NULL;
rt_size_t line_num = 1;
RT_ASSERT(resp);
RT_ASSERT(keyword);
for (line_num = 1; line_num <= resp->line_counts; line_num++)
{
if (strstr(resp_buf, keyword))
{
resp_line_buf = resp_buf;
return resp_line_buf;
}
resp_buf += strlen(resp_buf) + 1;
}
return RT_NULL;
}
/**
* Get and parse AT response buffer arguments by line number.
*
* @param resp response object
* @param resp_line line number, start from '1'
* @param resp_expr response buffer expression
*
* @return -1 : input response line number error or get line buffer error
* 0 : parsed without match
* >0 : the number of arguments successfully parsed
*/
int at_resp_parse_line_args(at_response_t resp, rt_size_t resp_line, const char *resp_expr, ...)
{
va_list args;
int resp_args_num = 0;
const char *resp_line_buf = RT_NULL;
RT_ASSERT(resp);
RT_ASSERT(resp_expr);
if ((resp_line_buf = at_resp_get_line(resp, resp_line)) == RT_NULL)
{
return -1;
}
va_start(args, resp_expr);
resp_args_num = vsscanf(resp_line_buf, resp_expr, args);
va_end(args);
return resp_args_num;
}
/**
* Get and parse AT response buffer arguments by keyword.
*
* @param resp response object
* @param keyword query keyword
* @param resp_expr response buffer expression
*
* @return -1 : input keyword error or get line buffer error
* 0 : parsed without match
* >0 : the number of arguments successfully parsed
*/
int at_resp_parse_line_args_by_kw(at_response_t resp, const char *keyword, const char *resp_expr, ...)
{
va_list args;
int resp_args_num = 0;
const char *resp_line_buf = RT_NULL;
RT_ASSERT(resp);
RT_ASSERT(resp_expr);
if ((resp_line_buf = at_resp_get_line_by_kw(resp, keyword)) == RT_NULL)
{
return -1;
}
va_start(args, resp_expr);
resp_args_num = vsscanf(resp_line_buf, resp_expr, args);
va_end(args);
return resp_args_num;
}
/**
* Send commands to AT server and wait response.
*
* @param client current AT client object
* @param resp AT response object, using RT_NULL when you don't care response
* @param cmd_expr AT commands expression
*
* @return 0 : success
* -1 : response status error
* -2 : wait timeout
*/
int at_obj_exec_cmd(at_client_t client, at_response_t resp, const char *cmd_expr, ...)
{
va_list args;
rt_size_t cmd_size = 0;
rt_err_t result = RT_EOK;
const char *cmd = RT_NULL;
RT_ASSERT(cmd_expr);
if (client == RT_NULL)
{
LOG_E("input AT Client object is NULL, please create or get AT Client object!");
return -RT_ERROR;
}
rt_mutex_take(client->lock, RT_WAITING_FOREVER);
client->resp_status = AT_RESP_OK;
client->resp = resp;
va_start(args, cmd_expr);
at_vprintfln(client->device, cmd_expr, args);
va_end(args);
if (resp != RT_NULL)
{
resp->line_counts = 0;
if (rt_sem_take(client->resp_notice, resp->timeout) != RT_EOK)
{
cmd = at_get_last_cmd(&cmd_size);
LOG_E("execute command (%.*s) timeout (%d ticks)!", cmd_size, cmd, resp->timeout);
client->resp_status = AT_RESP_TIMEOUT;
result = -RT_ETIMEOUT;
goto __exit;
}
if (client->resp_status != AT_RESP_OK)
{
cmd = at_get_last_cmd(&cmd_size);
LOG_E("execute command (%.*s) failed!", cmd_size, cmd);
result = -RT_ERROR;
goto __exit;
}
}
__exit:
client->resp = RT_NULL;
rt_mutex_release(client->lock);
return result;
}
/**
* Waiting for connection to external devices.
*
* @param client current AT client object
* @param timeout millisecond for timeout
*
* @return 0 : success
* -2 : timeout
* -5 : no memory
*/
int at_client_obj_wait_connect(at_client_t client, rt_uint32_t timeout)
{
rt_err_t result = RT_EOK;
at_response_t resp = RT_NULL;
rt_tick_t start_time = 0;
if (client == RT_NULL)
{
LOG_E("input AT Client object is NULL, please create or get AT Client object!");
return -RT_ERROR;
}
resp = at_create_resp(16, 0, rt_tick_from_millisecond(500));
if (resp == RT_NULL)
{
LOG_E("No memory for response object!");
return -RT_ENOMEM;
}
rt_mutex_take(client->lock, RT_WAITING_FOREVER);
client->resp = resp;
start_time = rt_tick_get();
while (1)
{
/* Check whether it is timeout */
if (rt_tick_get() - start_time > rt_tick_from_millisecond(timeout))
{
LOG_E("wait connect timeout (%d millisecond)!", timeout);
result = -RT_ETIMEOUT;
break;
}
/* Check whether it is already connected */
resp->line_counts = 0;
rt_device_write(client->device, 0, "AT\r\n", 4);
if (rt_sem_take(client->resp_notice, resp->timeout) != RT_EOK)
continue;
else
break;
}
at_delete_resp(resp);
client->resp = RT_NULL;
rt_mutex_release(client->lock);
return result;
}
/**
* Send data to AT server, send data don't have end sign(eg: \r\n).
*
* @param client current AT client object
* @param buf send data buffer
* @param size send fixed data size
*
* @return >0: send data size
* =0: send failed
*/
rt_size_t at_client_obj_send(at_client_t client, const char *buf, rt_size_t size)
{
RT_ASSERT(buf);
if (client == RT_NULL)
{
LOG_E("input AT Client object is NULL, please create or get AT Client object!");
return 0;
}
#ifdef AT_PRINT_RAW_CMD
at_print_raw_cmd("send", buf, size);
#endif
return rt_device_write(client->device, 0, buf, size);
}
static rt_err_t at_client_getchar(at_client_t client, char *ch, rt_int32_t timeout)
{
rt_err_t result = RT_EOK;
while (rt_device_read(client->device, 0, ch, 1) == 0)
{
rt_sem_control(client->rx_notice, RT_IPC_CMD_RESET, RT_NULL);
result = rt_sem_take(client->rx_notice, rt_tick_from_millisecond(timeout));
if (result != RT_EOK)
{
return result;
}
}
return RT_EOK;
}
/**
* AT client receive fixed-length data.
*
* @param client current AT client object
* @param buf receive data buffer
* @param size receive fixed data size
* @param timeout receive data timeout (ms)
*
* @note this function can only be used in execution function of URC data
*
* @return >0: receive data size
* =0: receive failed
*/
rt_size_t at_client_obj_recv(at_client_t client, char *buf, rt_size_t size, rt_int32_t timeout)
{
rt_size_t read_idx = 0;
rt_err_t result = RT_EOK;
char ch;
RT_ASSERT(buf);
if (client == RT_NULL)
{
LOG_E("input AT Client object is NULL, please create or get AT Client object!");
return 0;
}
while (1)
{
if (read_idx < size)
{
result = at_client_getchar(client, &ch, timeout);
if (result != RT_EOK)
{
LOG_E("AT Client receive failed, uart device get data error(%d)", result);
return 0;
}
buf[read_idx++] = ch;
}
else
{
break;
}
}
#ifdef AT_PRINT_RAW_CMD
at_print_raw_cmd("urc_recv", buf, size);
#endif
return read_idx;
}
/**
* AT client set end sign.
*
* @param client current AT client object
* @param ch the end sign, can not be used when it is '\0'
*/
void at_obj_set_end_sign(at_client_t client, char ch)
{
if (client == RT_NULL)
{
LOG_E("input AT Client object is NULL, please create or get AT Client object!");
return;
}
client->end_sign = ch;
}
/**
* set URC(Unsolicited Result Code) table
*
* @param client current AT client object
* @param table URC table
* @param size table size
*/
void at_obj_set_urc_table(at_client_t client, const struct at_urc *urc_table, rt_size_t table_sz)
{
rt_size_t idx;
if (client == RT_NULL)
{
LOG_E("input AT Client object is NULL, please create or get AT Client object!");
return;
}
for (idx = 0; idx < table_sz; idx++)
{
RT_ASSERT(urc_table[idx].cmd_prefix);
RT_ASSERT(urc_table[idx].cmd_suffix);
}
client->urc_table = urc_table;
client->urc_table_size = table_sz;
}
/**
* get AT client object by AT device name.
*
* @dev_name AT client device name
*
* @return AT client object
*/
at_client_t at_client_get(const char *dev_name)
{
int idx = 0;
RT_ASSERT(dev_name);
for (idx = 0; idx < AT_CLIENT_NUM_MAX; idx++)
{
if (rt_strcmp(at_client_table[idx].device->parent.name, dev_name) == 0)
{
return &at_client_table[idx];
}
}
return RT_NULL;
}
/**
* get first AT client object in the table.
*
* @return AT client object
*/
at_client_t at_client_get_first(void)
{
if (at_client_table[0].device == RT_NULL)
{
return RT_NULL;
}
return &at_client_table[0];
}
static const struct at_urc *get_urc_obj(at_client_t client)
{
rt_size_t i, prefix_len, suffix_len;
rt_size_t buf_sz;
char *buffer = RT_NULL;
if (client->urc_table == RT_NULL)
{
return RT_NULL;
}
buffer = client->recv_buffer;
buf_sz = client->cur_recv_len;
for (i = 0; i < client->urc_table_size; i++)
{
prefix_len = strlen(client->urc_table[i].cmd_prefix);
suffix_len = strlen(client->urc_table[i].cmd_suffix);
if (buf_sz < prefix_len + suffix_len)
{
continue;
}
if ((prefix_len ? !strncmp(buffer, client->urc_table[i].cmd_prefix, prefix_len) : 1)
&& (suffix_len ? !strncmp(buffer + buf_sz - suffix_len, client->urc_table[i].cmd_suffix, suffix_len) : 1))
{
return &client->urc_table[i];
}
}
return RT_NULL;
}
static int at_recv_readline(at_client_t client)
{
rt_size_t read_len = 0;
char ch = 0, last_ch = 0;
rt_bool_t is_full = RT_FALSE;
memset(client->recv_buffer, 0x00, client->recv_bufsz);
client->cur_recv_len = 0;
while (1)
{
at_client_getchar(client, &ch, RT_WAITING_FOREVER);
if (read_len < client->recv_bufsz)
{
client->recv_buffer[read_len++] = ch;
client->cur_recv_len = read_len;
}
else
{
is_full = RT_TRUE;
}
/* is newline or URC data */
if ((ch == '\n' && last_ch == '\r') || (client->end_sign != 0 && ch == client->end_sign)
|| get_urc_obj(client))
{
if (is_full)
{
LOG_E("read line failed. The line data length is out of buffer size(%d)!", client->recv_bufsz);
memset(client->recv_buffer, 0x00, client->recv_bufsz);
client->cur_recv_len = 0;
return -RT_EFULL;
}
break;
}
last_ch = ch;
}
#ifdef AT_PRINT_RAW_CMD
at_print_raw_cmd("recvline", client->recv_buffer, read_len);
#endif
return read_len;
}
static void client_parser(at_client_t client)
{
int resp_buf_len = 0;
const struct at_urc *urc;
rt_size_t line_counts = 0;
while(1)
{
if (at_recv_readline(client) > 0)
{
if ((urc = get_urc_obj(client)) != RT_NULL)
{
/* current receive is request, try to execute related operations */
if (urc->func != RT_NULL)
{
urc->func(client->recv_buffer, client->cur_recv_len);
}
}
else if (client->resp != RT_NULL)
{
/* current receive is response */
client->recv_buffer[client->cur_recv_len - 1] = '\0';
if (resp_buf_len + client->cur_recv_len < client->resp->buf_size)
{
/* copy response lines, separated by '\0' */
memcpy(client->resp->buf + resp_buf_len, client->recv_buffer, client->cur_recv_len);
resp_buf_len += client->cur_recv_len;
line_counts++;
}
else
{
client->resp_status = AT_RESP_BUFF_FULL;
LOG_E("Read response buffer failed. The Response buffer size is out of buffer size(%d)!", client->resp->buf_size);
}
/* check response result */
if (memcmp(client->recv_buffer, AT_RESP_END_OK, strlen(AT_RESP_END_OK)) == 0
&& client->resp->line_num == 0)
{
/* get the end data by response result, return response state END_OK. */
client->resp_status = AT_RESP_OK;
}
else if (strstr(client->recv_buffer, AT_RESP_END_ERROR)
|| (memcmp(client->recv_buffer, AT_RESP_END_FAIL, strlen(AT_RESP_END_FAIL)) == 0))
{
client->resp_status = AT_RESP_ERROR;
}
else if (line_counts == client->resp->line_num && client->resp->line_num)
{
/* get the end data by response line, return response state END_OK.*/
client->resp_status = AT_RESP_OK;
}
else
{
continue;
}
client->resp->line_counts = line_counts;
client->resp = RT_NULL;
rt_sem_release(client->resp_notice);
resp_buf_len = 0, line_counts = 0;
}
else
{
// log_d("unrecognized line: %.*s", client->cur_recv_len, client->recv_buffer);
}
}
}
}
static rt_err_t at_client_rx_ind(rt_device_t dev, rt_size_t size)
{
int idx = 0;
for (idx = 0; idx < AT_CLIENT_NUM_MAX; idx++)
{
if (at_client_table[idx].device == dev && size > 0)
{
rt_sem_release(at_client_table[idx].rx_notice);
}
}
return RT_EOK;
}
/* initialize the client object parameters */
static int at_client_para_init(at_client_t client)
{
#define AT_CLIENT_LOCK_NAME "at_c"
#define AT_CLIENT_SEM_NAME "at_cs"
#define AT_CLIENT_RESP_NAME "at_cr"
#define AT_CLIENT_THREAD_NAME "at_clnt"
int result = RT_EOK;
static int at_client_num = 0;
char name[RT_NAME_MAX];
client->status = AT_STATUS_UNINITIALIZED;
client->cur_recv_len = 0;
client->recv_buffer = (char *) rt_calloc(1, client->recv_bufsz);
if (client->recv_buffer == RT_NULL)
{
LOG_E("AT client initialize failed! No memory for receive buffer.");
result = -RT_ENOMEM;
goto __exit;
}
rt_snprintf(name, RT_NAME_MAX, "%s%d", AT_CLIENT_LOCK_NAME, at_client_num);
client->lock = rt_mutex_create(name, RT_IPC_FLAG_FIFO);
if (client->lock == RT_NULL)
{
LOG_E("AT client initialize failed! at_client_recv_lock create failed!");
result = -RT_ENOMEM;
goto __exit;
}
rt_snprintf(name, RT_NAME_MAX, "%s%d", AT_CLIENT_SEM_NAME, at_client_num);
client->rx_notice = rt_sem_create(name, 0, RT_IPC_FLAG_FIFO);
if (client->rx_notice == RT_NULL)
{
LOG_E("AT client initialize failed! at_client_notice semaphore create failed!");
result = -RT_ENOMEM;
goto __exit;
}
rt_snprintf(name, RT_NAME_MAX, "%s%d", AT_CLIENT_RESP_NAME, at_client_num);
client->resp_notice = rt_sem_create(name, 0, RT_IPC_FLAG_FIFO);
if (client->resp_notice == RT_NULL)
{
LOG_E("AT client initialize failed! at_client_resp semaphore create failed!");
result = -RT_ENOMEM;
goto __exit;
}
client->urc_table = RT_NULL;
client->urc_table_size = 0;
rt_snprintf(name, RT_NAME_MAX, "%s%d", AT_CLIENT_THREAD_NAME, at_client_num);
client->parser = rt_thread_create(name,
(void (*)(void *parameter))client_parser,
client,
1024 + 512,
RT_THREAD_PRIORITY_MAX / 3 - 1,
5);
if (client->parser == RT_NULL)
{
result = -RT_ENOMEM;
goto __exit;
}
__exit:
if (result != RT_EOK)
{
if (client->lock)
{
rt_mutex_delete(client->lock);
}
if (client->rx_notice)
{
rt_sem_delete(client->rx_notice);
}
if (client->resp_notice)
{
rt_sem_delete(client->resp_notice);
}
if (client->device)
{
rt_device_close(client->device);
}
if (client->recv_buffer)
{
rt_free(client->recv_buffer);
}
rt_memset(client, 0x00, sizeof(struct at_client));
}
else
{
at_client_num++;
}
return result;
}
/**
* AT client initialize.
*
* @param dev_name AT client device name
* @param recv_bufsz the maximum number of receive buffer length
*
* @return 0 : initialize success
* -1 : initialize failed
* -5 : no memory
*/
int at_client_init(const char *dev_name, rt_size_t recv_bufsz)
{
int idx = 0;
int result = RT_EOK;
rt_err_t open_result = RT_EOK;
at_client_t client = RT_NULL;
RT_ASSERT(dev_name);
RT_ASSERT(recv_bufsz > 0);
for (idx = 0; idx < AT_CLIENT_NUM_MAX && at_client_table[idx].device; idx++);
if (idx >= AT_CLIENT_NUM_MAX)
{
LOG_E("AT client initialize failed! Check the maximum number(%d) of AT client.", AT_CLIENT_NUM_MAX);
result = -RT_EFULL;
goto __exit;
}
client = &at_client_table[idx];
client->recv_bufsz = recv_bufsz;
/* find and open command device */
client->device = rt_device_find(dev_name);
if (client->device)
{
RT_ASSERT(client->device->type == RT_Device_Class_Char);
/* using DMA mode first */
open_result = rt_device_open(client->device, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_DMA_RX);
/* using interrupt mode when DMA mode not supported */
if (open_result == -RT_EIO)
{
open_result = rt_device_open(client->device, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX);
}
RT_ASSERT(open_result == RT_EOK);
rt_device_set_rx_indicate(client->device, at_client_rx_ind);
}
else
{
LOG_E("AT client initialize failed! Not find the device(%s).", dev_name);
result = -RT_ERROR;
goto __exit;
}
result = at_client_para_init(client);
if (result != RT_EOK)
{
goto __exit;
}
__exit:
if (result == RT_EOK)
{
client->status = AT_STATUS_INITIALIZED;
rt_thread_startup(client->parser);
LOG_I("AT client(V%s) on device %s initialize success.", AT_SW_VERSION, dev_name);
}
else
{
LOG_E("AT client(V%s) on device %s initialize failed(%d).", AT_SW_VERSION, dev_name, result);
}
return result;
}
#endif /* AT_USING_CLIENT */

560
Project/Src/rt-thread/components/net/at/src/at_server.c Normal file
View File

@@ -0,0 +1,560 @@
/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-03-30 chenyong first version
* 2018-04-14 chenyong modify parse arguments
*/
#include <at.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <rthw.h>
#define LOG_TAG "at.svr"
#include <at_log.h>
#ifdef AT_USING_SERVER
#define AT_CMD_CHAR_0 '0'
#define AT_CMD_CHAR_9 '9'
#define AT_CMD_QUESTION_MARK '?'
#define AT_CMD_EQUAL_MARK '='
#define AT_CMD_L_SQ_BRACKET '['
#define AT_CMD_R_SQ_BRACKET ']'
#define AT_CMD_L_ANGLE_BRACKET '<'
#define AT_CMD_R_ANGLE_BRACKET '>'
#define AT_CMD_COMMA_MARK ','
#define AT_CMD_SEMICOLON ';'
#define AT_CMD_CR '\r'
#define AT_CMD_LF '\n'
static at_server_t at_server_local = RT_NULL;
static at_cmd_t cmd_table = RT_NULL;
static rt_size_t cmd_num;
extern void at_vprintf(rt_device_t device, const char *format, va_list args);
extern void at_vprintfln(rt_device_t device, const char *format, va_list args);
/**
* AT server send data to AT device
*
* @param format the input format
*/
void at_server_printf(const char *format, ...)
{
va_list args;
va_start(args, format);
at_vprintf(at_server_local->device, format, args);
va_end(args);
}
/**
* AT server send data and newline to AT device
*
* @param format the input format
*/
void at_server_printfln(const char *format, ...)
{
va_list args;
va_start(args, format);
at_vprintfln(at_server_local->device, format, args);
va_end(args);
}
/**
* AT server request arguments parse arguments
*
* @param req_args request arguments
* @param req_expr request expression
*
* @return -1 : parse arguments failed
* 0 : parse without match
* >0 : The number of arguments successfully parsed
*/
int at_req_parse_args(const char *req_args, const char *req_expr, ...)
{
va_list args;
int req_args_num = 0;
RT_ASSERT(req_args);
RT_ASSERT(req_expr);
va_start(args, req_expr);
req_args_num = vsscanf(req_args, req_expr, args);
va_end(args);
return req_args_num;
}
/**
* AT server send command execute result to AT device
*
* @param result AT command execute result
*/
void at_server_print_result(at_result_t result)
{
switch (result)
{
case AT_RESULT_OK:
at_server_printfln("");
at_server_printfln("OK");
break;
case AT_RESULT_FAILE:
at_server_printfln("");
at_server_printfln("ERROR");
break;
case AT_RESULT_NULL:
break;
case AT_RESULT_CMD_ERR:
at_server_printfln("ERR CMD MATCH FAILED!");
at_server_print_result(AT_RESULT_FAILE);
break;
case AT_RESULT_CHECK_FAILE:
at_server_printfln("ERR CHECK ARGS FORMAT FAILED!");
at_server_print_result(AT_RESULT_FAILE);
break;
case AT_RESULT_PARSE_FAILE:
at_server_printfln("ERR PARSE ARGS FAILED!");
at_server_print_result(AT_RESULT_FAILE);
break;
default:
break;
}
}
/**
* AT server print all commands to AT device
*/
void rt_at_server_print_all_cmd(void)
{
rt_size_t i = 0;
at_server_printfln("Commands list : ");
for (i = 0; i < cmd_num; i++)
{
at_server_printf("%s", cmd_table[i].name);
if (cmd_table[i].args_expr)
{
at_server_printfln("%s", cmd_table[i].args_expr);
}
else
{
at_server_printf("%c%c", AT_CMD_CR, AT_CMD_LF);
}
}
}
at_server_t at_get_server(void)
{
RT_ASSERT(at_server_local);
RT_ASSERT(at_server_local->status != AT_STATUS_UNINITIALIZED);
return at_server_local;
}
static rt_err_t at_check_args(const char *args, const char *args_format)
{
rt_size_t left_sq_bracket_num = 0, right_sq_bracket_num = 0;
rt_size_t left_angle_bracket_num = 0, right_angle_bracket_num = 0;
rt_size_t comma_mark_num = 0;
rt_size_t i = 0;
RT_ASSERT(args);
RT_ASSERT(args_format);
for (i = 0; i < strlen(args_format); i++)
{
switch (args_format[i])
{
case AT_CMD_L_SQ_BRACKET:
left_sq_bracket_num++;
break;
case AT_CMD_R_SQ_BRACKET:
right_sq_bracket_num++;
break;
case AT_CMD_L_ANGLE_BRACKET:
left_angle_bracket_num++;
break;
case AT_CMD_R_ANGLE_BRACKET:
right_angle_bracket_num++;
break;
default:
break;
}
}
if (left_sq_bracket_num != right_sq_bracket_num || left_angle_bracket_num != right_angle_bracket_num
|| left_sq_bracket_num > left_angle_bracket_num)
{
return -RT_ERROR;
}
for (i = 0; i < strlen(args); i++)
{
if (args[i] == AT_CMD_COMMA_MARK)
{
comma_mark_num++;
}
}
if ((comma_mark_num + 1 < left_angle_bracket_num - left_sq_bracket_num)
|| comma_mark_num + 1 > left_angle_bracket_num)
{
return -RT_ERROR;
}
return RT_EOK;
}
static rt_err_t at_cmd_process(at_cmd_t cmd, const char *cmd_args)
{
at_result_t result = AT_RESULT_OK;
RT_ASSERT(cmd);
RT_ASSERT(cmd_args);
if (cmd_args[0] == AT_CMD_EQUAL_MARK && cmd_args[1] == AT_CMD_QUESTION_MARK && cmd_args[2] == AT_CMD_CR)
{
if (cmd->test == RT_NULL)
{
at_server_print_result(AT_RESULT_CMD_ERR);
return -RT_ERROR;
}
result = cmd->test();
at_server_print_result(result);
}
else if (cmd_args[0] == AT_CMD_QUESTION_MARK && cmd_args[1] == AT_CMD_CR)
{
if (cmd->query == RT_NULL)
{
at_server_print_result(AT_RESULT_CMD_ERR);
return -RT_ERROR;
}
result = cmd->query();
at_server_print_result(result);
}
else if (cmd_args[0] == AT_CMD_EQUAL_MARK
|| (cmd_args[0] >= AT_CMD_CHAR_0 && cmd_args[0] <= AT_CMD_CHAR_9 && cmd_args[1] == AT_CMD_CR))
{
if (cmd->setup == RT_NULL)
{
at_server_print_result(AT_RESULT_CMD_ERR);
return -RT_ERROR;
}
if(at_check_args(cmd_args, cmd->args_expr) < 0)
{
at_server_print_result(AT_RESULT_CHECK_FAILE);
return -RT_ERROR;
}
result = cmd->setup(cmd_args);
at_server_print_result(result);
}
else if (cmd_args[0] == AT_CMD_CR)
{
if (cmd->exec == RT_NULL)
{
at_server_print_result(AT_RESULT_CMD_ERR);
return -RT_ERROR;
}
result = cmd->exec();
at_server_print_result(result);
}
else
{
return -RT_ERROR;
}
return RT_EOK;
}
static at_cmd_t at_find_cmd(const char *cmd)
{
rt_size_t i = 0;
RT_ASSERT(cmd_table);
for (i = 0; i < cmd_num; i++)
{
if (!strcasecmp(cmd, cmd_table[i].name))
{
return &cmd_table[i];
}
}
return RT_NULL;
}
static rt_err_t at_cmd_get_name(const char *cmd_buffer, char *cmd_name)
{
rt_size_t cmd_name_len = 0, i = 0;
RT_ASSERT(cmd_name);
RT_ASSERT(cmd_buffer);
for (i = 0; i < strlen(cmd_buffer) + 1; i++)
{
if (*(cmd_buffer + i) == AT_CMD_QUESTION_MARK || *(cmd_buffer + i) == AT_CMD_EQUAL_MARK
|| *(cmd_buffer + i) == AT_CMD_CR
|| (*(cmd_buffer + i) >= AT_CMD_CHAR_0 && *(cmd_buffer + i) <= AT_CMD_CHAR_9))
{
cmd_name_len = i;
memcpy(cmd_name, cmd_buffer, cmd_name_len);
*(cmd_name + cmd_name_len) = '\0';
return RT_EOK;
}
}
return -RT_ERROR;
}
static char at_server_gerchar(void)
{
char ch;
while (rt_device_read(at_server_local->device, 0, &ch, 1) == 0)
{
rt_sem_control(at_server_local->rx_notice, RT_IPC_CMD_RESET, RT_NULL);
rt_sem_take(at_server_local->rx_notice, RT_WAITING_FOREVER);
}
return ch;
}
static void server_parser(at_server_t server)
{
#define ESC_KEY 0x1B
#define BACKSPACE_KEY 0x08
#define DELECT_KEY 0x7F
char cur_cmd_name[AT_CMD_NAME_LEN] = { 0 };
at_cmd_t cur_cmd = RT_NULL;
char *cur_cmd_args = RT_NULL, ch, last_ch;
RT_ASSERT(server);
RT_ASSERT(server->status != AT_STATUS_UNINITIALIZED);
while (ESC_KEY != (ch = server->get_char()))
{
if (server->echo_mode)
{
if (ch == AT_CMD_CR || (ch == AT_CMD_LF && last_ch != AT_CMD_CR))
{
at_server_printf("%c%c", AT_CMD_CR, AT_CMD_LF);
}
else if (ch == BACKSPACE_KEY || ch == DELECT_KEY)
{
if (server->cur_recv_len)
{
server->recv_buffer[--server->cur_recv_len] = 0;
at_server_printf("\b \b");
}
continue;
}
else
{
at_server_printf("%c", ch);
}
}
server->recv_buffer[server->cur_recv_len++] = ch;
last_ch = ch;
if(!strstr(server->recv_buffer, server->end_mark))
{
continue;
}
if (at_cmd_get_name(server->recv_buffer, cur_cmd_name) < 0)
{
at_server_print_result(AT_RESULT_CMD_ERR);
goto __retry;
}
cur_cmd = at_find_cmd(cur_cmd_name);
if (!cur_cmd)
{
at_server_print_result(AT_RESULT_CMD_ERR);
goto __retry;
}
cur_cmd_args = server->recv_buffer + strlen(cur_cmd_name);
if (at_cmd_process(cur_cmd, cur_cmd_args) < 0)
{
goto __retry;
}
__retry:
memset(server->recv_buffer, 0x00, AT_SERVER_RECV_BUFF_LEN);
server->cur_recv_len = 0;
}
}
static rt_err_t at_rx_ind(rt_device_t dev, rt_size_t size)
{
if (size > 0)
{
rt_sem_release(at_server_local->rx_notice);
}
return RT_EOK;
}
#if defined(__ICCARM__) || defined(__ICCRX__) /* for IAR compiler */
#pragma section="RtAtCmdTab"
#endif
int at_server_init(void)
{
rt_err_t result = RT_EOK;
rt_err_t open_result = RT_EOK;
if (at_server_local)
{
return result;
}
/* initialize the AT commands table.*/
#if defined(__CC_ARM) /* ARM C Compiler */
extern const int RtAtCmdTab$$Base;
extern const int RtAtCmdTab$$Limit;
cmd_table = (at_cmd_t)&RtAtCmdTab$$Base;
cmd_num = (at_cmd_t)&RtAtCmdTab$$Limit - cmd_table;
#elif defined (__ICCARM__) || defined(__ICCRX__) /* for IAR Compiler */
cmd_table = (at_cmd_t)__section_begin("RtAtCmdTab");
cmd_num = (at_cmd_t)__section_end("RtAtCmdTab") - cmd_table;
#elif defined (__GNUC__) /* for GCC Compiler */
extern const int __rtatcmdtab_start;
extern const int __rtatcmdtab_end;
cmd_table = (at_cmd_t)&__rtatcmdtab_start;
cmd_num = (at_cmd_t) &__rtatcmdtab_end - cmd_table;
#endif /* defined(__CC_ARM) */
at_server_local = (at_server_t) rt_calloc(1, sizeof(struct at_server));
if (!at_server_local)
{
result = -RT_ENOMEM;
LOG_E("AT server session initialize failed! No memory for at_server structure !");
goto __exit;
}
at_server_local->echo_mode = 1;
at_server_local->status = AT_STATUS_UNINITIALIZED;
memset(at_server_local->recv_buffer, 0x00, AT_SERVER_RECV_BUFF_LEN);
at_server_local->cur_recv_len = 0;
at_server_local->rx_notice = rt_sem_create("at_svr", 0, RT_IPC_FLAG_FIFO);
if (!at_server_local->rx_notice)
{
LOG_E("AT server session initialize failed! at_rx_notice semaphore create failed!");
result = -RT_ENOMEM;
goto __exit;
}
/* Find and open command device */
at_server_local->device = rt_device_find(AT_SERVER_DEVICE);
if (at_server_local->device)
{
RT_ASSERT(at_server_local->device->type == RT_Device_Class_Char);
/* using DMA mode first */
open_result = rt_device_open(at_server_local->device, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_DMA_RX);
/* using interrupt mode when DMA mode not supported */
if (open_result == -RT_EIO)
{
open_result = rt_device_open(at_server_local->device, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX);
}
RT_ASSERT(open_result == RT_EOK);
rt_device_set_rx_indicate(at_server_local->device, at_rx_ind);
}
else
{
LOG_E("AT device initialize failed! Not find the device : %s.", AT_SERVER_DEVICE);
result = -RT_ERROR;
goto __exit;
}
at_server_local->get_char = at_server_gerchar;
memcpy(at_server_local->end_mark, AT_CMD_END_MARK, sizeof(AT_CMD_END_MARK));
at_server_local->parser_entry = server_parser;
at_server_local->parser = rt_thread_create("at_svr",
(void (*)(void *parameter))server_parser,
at_server_local,
2 * 1024,
RT_THREAD_PRIORITY_MAX / 3 - 1,
5);
if (at_server_local->parser == RT_NULL)
{
result = -RT_ENOMEM;
goto __exit;
}
__exit:
if (!result)
{
at_server_local->status = AT_STATUS_INITIALIZED;
rt_thread_startup(at_server_local->parser);
LOG_I("RT-Thread AT server (V%s) initialize success.", AT_SW_VERSION);
}
else
{
if (at_server_local)
{
rt_free(at_server_local);
}
LOG_E("RT-Thread AT server (V%s) initialize failed(%d).", AT_SW_VERSION, result);
}
return result;
}
INIT_COMPONENT_EXPORT(at_server_init);
RT_WEAK void at_port_reset(void)
{
LOG_E("The reset for AT server is not implement.");
}
RT_WEAK void at_port_factory_reset(void)
{
LOG_E("The factory reset for AT server is not implement.");
}
#endif /* AT_USING_SERVER */

88
Project/Src/rt-thread/components/net/at/src/at_utils.c Normal file
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@@ -0,0 +1,88 @@
/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-04-14 chenyong first version
*/
#include <at.h>
#include <stdlib.h>
#include <stdio.h>
static char send_buf[AT_CMD_MAX_LEN];
static rt_size_t last_cmd_len = 0;
/**
* dump hex format data to console device
*
* @param name name for hex object, it will show on log header
* @param buf hex buffer
* @param size buffer size
*/
void at_print_raw_cmd(const char *name, const char *buf, rt_size_t size)
{
#define __is_print(ch) ((unsigned int)((ch) - ' ') < 127u - ' ')
#define WIDTH_SIZE 32
rt_size_t i, j;
for (i = 0; i < size; i += WIDTH_SIZE)
{
rt_kprintf("[D/AT] %s: %04X-%04X: ", name, i, i + WIDTH_SIZE);
for (j = 0; j < WIDTH_SIZE; j++)
{
if (i + j < size)
{
rt_kprintf("%02X ", buf[i + j]);
}
else
{
rt_kprintf(" ");
}
if ((j + 1) % 8 == 0)
{
rt_kprintf(" ");
}
}
rt_kprintf(" ");
for (j = 0; j < WIDTH_SIZE; j++)
{
if (i + j < size)
{
rt_kprintf("%c", __is_print(buf[i + j]) ? buf[i + j] : '.');
}
}
rt_kprintf("\n");
}
}
const char *at_get_last_cmd(rt_size_t *cmd_size)
{
*cmd_size = last_cmd_len;
return send_buf;
}
rt_size_t at_vprintf(rt_device_t device, const char *format, va_list args)
{
last_cmd_len = vsnprintf(send_buf, sizeof(send_buf), format, args);
#ifdef AT_PRINT_RAW_CMD
at_print_raw_cmd("send", send_buf, last_cmd_len);
#endif
return rt_device_write(device, 0, send_buf, last_cmd_len);
}
rt_size_t at_vprintfln(rt_device_t device, const char *format, va_list args)
{
rt_size_t len;
len = at_vprintf(device, format, args);
rt_device_write(device, 0, "\r\n", 2);
return len + 2;
}