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AT-Command/at_chat.c

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/*******************************************************************************
* @file at_core.h
* @brief AT command communications.
*
* @version 5.0
* @date 2020-05-11
* @author roger.luo
*
* Change Logs:
* Date Author Notes
* 2016-01-22 roger.luo Initial version.
* 2017-05-21 roger.luo 1.1 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* 2018-02-11 roger.luo 3.0
* 2020-01-02 roger.luo 4.0 os version
* 2020-05-21 roger.luo 5.0 <EFBFBD><EFBFBD>OS<EFBFBD>汾
*******************************************************************************/
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#include "at_chat.h"
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
//<2F><>ʱ<EFBFBD>ж<EFBFBD>
#define AT_IS_TIMEOUT(start, time) (at_get_ms() - (start) > (time))
/*ATCOMM work type -----------------------------------------------------------*/
#define AT_TYPE_WORK 0 /*<2A><><EFBFBD><EFBFBD> --------------*/
#define AT_TYPE_CMD 1 /*<2A><>׼<EFBFBD><D7BC><EFBFBD><EFBFBD> ----------*/
#define AT_TYPE_MULTILINE 3 /*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ----------*/
#define AT_TYPE_SINGLLINE 4 /*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ----------*/
typedef int (*base_work)(at_core_t *ac, ...);
static void at_send_line(at_core_t *ac, const char *fmt, va_list args);
static const inline at_core_conf_t *__get_adapter(at_core_t *ac)
{
return &ac->cfg;
}
static bool is_timeout(at_core_t *ac, unsigned int ms)
{
return AT_IS_TIMEOUT(ac->resp_timer, ms);
}
/*
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
static void send_data(at_core_t *ac, const void *buf, unsigned int len)
{
ac->cfg.write(buf, len);
}
/*
* @brief <EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ
*/
static void print(at_core_t *ac, const char *cmd, ...)
{
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va_list args;
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va_start(args, cmd);
at_send_line(ac, cmd, args);
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va_end(args);
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}
/*
* @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD>ճ<EFBFBD><EFBFBD><EFBFBD>
*/
static unsigned int get_recv_count(at_core_t *ac)
{
return ac->rcv_cnt;
}
/*
* @brief <EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
static char *get_recv_buf(at_core_t *ac)
{
return (char *)ac->cfg.rcv_buf;
}
/*
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
static void recv_buf_clear(at_core_t *ac)
{
ac->rcv_cnt = 0;
}
/*ǰ<><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>*/
static char *search_string(at_core_t *ac, const char *str)
{
return strstr(get_recv_buf(ac), str);
}
/*ǰ<><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>*/
static bool at_isabort(at_core_t *ac)
{
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return ac->cursor ? ac->cursor->abort : 1;
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}
/*
* @brief ATִ<EFBFBD>лص<EFBFBD>
*/
static void do_at_callback(at_core_t *a, at_item_t *i, at_callback_t cb, at_return ret)
{
at_response_t r;
if (cb) {
r.param = i->param;
r.recvbuf = get_recv_buf(a);
r.recvcnt = get_recv_count(a);
r.ret = ret;
cb(&r);
}
}
/*
* @brief AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] cfg - AT<EFBFBD><EFBFBD>Ӧ
*/
void at_core_init(at_core_t *ac, const at_core_conf_t cfg)
{
at_env_t *e;
ac->cfg = cfg;
e = &ac->env;
ac->rcv_cnt = 0;
e->is_timeout = is_timeout;
e->printf = print;
e->recvbuf = get_recv_buf;
e->recvclr = recv_buf_clear;
e->recvlen = get_recv_count;
e->find = search_string;
e->abort = at_isabort;
}
/*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
static bool add_work(at_core_t *ac, void *params, void *info, int type)
{
at_item_t *i;
ac->cfg.lock();
if (list_empty(&ac->ls_idle)) //<2F>޿<EFBFBD><DEBF><EFBFBD>at_item
return NULL;
i = list_first_entry(&ac->ls_idle, at_item_t, node);//<2F>ӿ<EFBFBD><D3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>ҵ
i->info = (void *)info;
i->param = (void *)params;
i->state = AT_STATE_WAIT;
i->type = type;
i->abort = 0;
list_move_tail(&i->node, &ac->ls_ready); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ac->cfg.unlock();
return i != 0;
}
/*
* @brief ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
static int do_work_handler(at_core_t *ac)
{
at_item_t *i = ac->cursor;
return ((int (*)(at_env_t *e))i->info)(i->param);
}
/*******************************************************************************
* @brief ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>
* @param[in] a - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @return 0 - <EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD>,<EFBFBD><EFBFBD>0 - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
******************************************************************************/
static int do_cmd_handler(at_core_t *a)
{
at_item_t *i = a->cursor;
at_env_t *e = &a->env;
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const at_respond_t *c = (at_respond_t *)i->info;
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switch(e->state) {
case 0: /*<2A><><EFBFBD><EFBFBD>״̬ ------------------------------------------------------*/
c->sender(e);
e->state++;
e->reset_timer(a);
e->recvclr(a);
break;
case 1: /*<2A><><EFBFBD><EFBFBD>״̬ ------------------------------------------------------*/
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if (search_string(a, c->matcher)) {
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do_at_callback(a, i, c->cb, AT_RET_OK);
return true;
} else if (search_string(a, "ERROR")) {
if (++e->i >= c->retry) {
do_at_callback(a, i, c->cb, AT_RET_ERROR);
return true;
}
e->state = 2; /*<2A><><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ʱһ<CAB1><D2BB>ʱ<EFBFBD><CAB1>*/
e->reset_timer(a); /*<2A><><EFBFBD>ö<EFBFBD>ʱ<EFBFBD><CAB1>*/
} else if (e->is_timeout(a, c->timeout)) {
if (++e->i >= c->retry) {
do_at_callback(a, i, c->cb, AT_RET_TIMEOUT);
return true;
}
e->state = 0; /*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ״̬*/
}
break;
case 2:
if (e->is_timeout(a, 500))
e->state = 0; /*<2A><><EFBFBD>س<EFBFBD>ʼ״̬*/
break;
default:
e->state = 0;
}
return false;
}
/*******************************************************************************
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] a - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @return 0 - <EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD>,<EFBFBD><EFBFBD>0 - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
******************************************************************************/
static int send_signlline_handler(at_core_t *a)
{
at_item_t *i = a->cursor;
at_env_t *e = &a->env;
const char *cmd = (const char *)i->param;
at_callback_t cb = (at_callback_t)i->info;
switch(e->state) {
case 0: /*<2A><><EFBFBD><EFBFBD>״̬ ------------------------------------------------------*/
e->printf(a, cmd);
e->state++;
e->reset_timer(a);
e->recvclr(a);
break;
case 1: /*<2A><><EFBFBD><EFBFBD>״̬ ------------------------------------------------------*/
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if (search_string(a, "OK")) {
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do_at_callback(a, i, cb, AT_RET_OK);
return true;
} else if (search_string(a, "ERROR")) {
if (++e->i >= 3) {
do_at_callback(a, i, cb, AT_RET_ERROR);
return true;
}
e->state = 2; /*<2A><><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ʱһ<CAB1><D2BB>ʱ<EFBFBD><CAB1>*/
e->reset_timer(a); /*<2A><><EFBFBD>ö<EFBFBD>ʱ<EFBFBD><CAB1>*/
} else if (e->is_timeout(a, 3000 + e->i * 2000)) {
if (++e->i >= 3) {
do_at_callback(a, i, cb, AT_RET_TIMEOUT);
return true;
}
e->state = 0; /*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ״̬*/
}
break;
case 2:
if (e->is_timeout(a, 500))
e->state = 0; /*<2A><><EFBFBD>س<EFBFBD>ʼ״̬*/
break;
default:
e->state = 0;
}
return false;
}
/*******************************************************************************
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] a - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @return 0 - <EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD>,<EFBFBD><EFBFBD>0 - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
******************************************************************************/
static int send_multiline_handler(at_core_t *a)
{
at_item_t *i = a->cursor;
at_env_t *e = &a->env;
const char **cmds = (const char **)i->param;
at_callback_t cb = (at_callback_t)i->info;
switch(e->state) {
case 0:
if (cmds[e->i] == NULL) { /*<2A><><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
do_at_callback(a, i, cb, AT_RET_OK);
return true;
}
e->printf(a, "%s\r\n", cmds[e->i]);
e->recvclr(a); /*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
e->reset_timer(a);
e->state++;
break;
case 1:
if (search_string(a, "OK")){
e->state = 0;
e->i++;
e->i = 0;
} else if (search_string(a, "ERROR")) {
if (++e->j >= 3) {
do_at_callback(a, i, cb, AT_RET_ERROR);
return true;
}
e->state = 2; /*<2A><><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ʱһ<CAB1><D2BB>ʱ<EFBFBD><CAB1>*/
e->reset_timer(a); /*<2A><><EFBFBD>ö<EFBFBD>ʱ<EFBFBD><CAB1>*/
} else if (e->is_timeout(a, 3000)) {
do_at_callback(a, i, cb, AT_RET_TIMEOUT);
return true;
}
break;
default:
e->state = 0;
}
return 0;
}
/*
* @brief <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] fmt - <EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] args - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>
*/
static void at_send_line(at_core_t *ac, const char *fmt, va_list args)
{
char buf[MAX_AT_CMD_LEN];
int len;
const at_core_conf_t *adt = __get_adapter(ac);
len = vsnprintf(buf, sizeof(buf), fmt, args);
recv_buf_clear(ac); //<2F><><EFBFBD>ս<EFBFBD><D5BD>ջ<EFBFBD><D5BB><EFBFBD>
send_data(ac, buf, len);
send_data(ac, "\r\n", 2);
}
/*
* @brief urc <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] urc
* @return none
*/
static void urc_handler_entry(at_core_t *ac, char *urc, unsigned int size)
{
int i, n;
utc_item_t *tbl = ac->cfg.utc_tbl;
for (i = 0; i < ac->cfg.urc_tbl_count; i++){
n = strlen(tbl->prefix);
if (strncmp(urc, tbl->prefix, n) == 0)
tbl[i].handler(urc, size);
}
}
/*
* @brief urc <EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD>
* @param[in] buf - <EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @return none
*/
static void urc_recv_process(at_core_t *ac, char *buf, unsigned int size)
{
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char *urc_buf;
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unsigned short urc_size;
urc_buf = (char *)ac->cfg.urc_buf;
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urc_size = ac->cfg.urc_bufsize;
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if (size == 0 && ac->urc_cnt > 0) {
if (AT_IS_TIMEOUT(ac->urc_timer, 2000)){
urc_handler_entry(ac, urc_buf, ac->urc_cnt);
ac->rcv_cnt = 0;
}
} else {
ac->urc_timer = at_get_ms();
while (size--) {
if (*buf == '\n') {
urc_buf[ac->urc_cnt] = '\0';
urc_handler_entry(ac, urc_buf, ac->urc_cnt);
} else {
urc_buf[ac->urc_cnt++] = *buf++;
if (ac->urc_cnt >= urc_size)
ac->urc_cnt = 0;
}
}
}
}
/*
* @brief ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD>
* @param[in] buf -
* @return none
*/
static void resp_recv_process(at_core_t *ac, const char *buf, unsigned int size)
{
char *rcv_buf;
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unsigned short rcv_size;
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rcv_buf = (char *)ac->cfg.rcv_buf;
rcv_size = ac->cfg.rcv_bufsize;
if (ac->rcv_cnt + size >= rcv_size) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ac->rcv_cnt = 0;
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memcpy(rcv_buf + rcv_cnt, buf, size);
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ac->rcv_cnt += size;
rcv_buf[ac->rcv_cnt] = '\0';
}
/*
* @brief ִ<EFBFBD><EFBFBD>AT<EFBFBD><EFBFBD>ҵ
* @param[in] a - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] work - AT<EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] params -
*/
bool at_do_work(at_core_t *ac, int (*work)(at_env_t *e), void *params)
{
return add_work(ac, params, (void *)work, AT_TYPE_WORK);
}
/*
* @brief ִ<EFBFBD><EFBFBD>ATָ<EFBFBD><EFBFBD>
* @param[in] a - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] cmd - cmd<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
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bool at_do_cmd(at_core_t *ac, void *params, const at_respond_t *cmd)
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{
return add_work(ac, params, (void *)cmd, AT_TYPE_CMD);
}
/*
* @brief <EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD>AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] ac - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] cb - ִ<EFBFBD>лص<EFBFBD>
* @param[in] singlline - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @note <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ,singlline<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч
*/
bool at_send_singlline(at_core_t *ac, at_callback_t cb, const char *singlline)
{
return add_work(ac, (void *)singlline, (void *)cb, AT_TYPE_SINGLLINE);
}
/*
* @brief <EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD>AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] ac - AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @param[in] cb - ִ<EFBFBD>лص<EFBFBD>
* @param[in] multiline - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* @note <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ,multiline
*/
bool at_send_multiline(at_core_t *ac, at_callback_t cb, const char **multiline)
{
return add_work(ac, multiline, (void *)cb, AT_TYPE_MULTILINE);
}
/*
* @brief ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹAT<EFBFBD><EFBFBD>ҵ
*/
void at_item_abort(at_item_t *i)
{
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i->abort = 1;
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}
/*
* @brief ATæ<EFBFBD>ж<EFBFBD>
* @return true - <EFBFBD><EFBFBD>ATָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
bool at_core_busy(at_core_t *ac)
{
return !list_empty(&ac->ls_ready);
}
/*******************************************************************************
* @brief AT<EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
******************************************************************************/
static void at_work_manager(at_core_t *ac)
{
register at_item_t *cursor = ac->cursor;
at_env_t *e = &ac->env;
/*ͨ<>ù<EFBFBD><C3B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ---------------------------------------------------------*/
static int (*const work_handler_table[])(at_core_t *) = {
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do_work_handler,
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do_cmd_handler,
send_signlline_handler,
send_multiline_handler
};
if (ac->cursor == NULL) {
if (list_empty(&ac->ls_ready)) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>
return;
e->i = 0;
e->j = 0;
e->state = 0;
e->params = cursor->param;
e->recvclr(ac);
e->reset_timer(ac);
ac->cursor = list_first_entry(&ac->ls_ready, at_item_t, node);
}
/*<2A><><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD><EBB5BD><EFBFBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD> ------------------------------------*/
if (work_handler_table[cursor->type](ac) || cursor->abort) {
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ac->cfg.lock();
list_move_tail(&ac->cursor->node, &ac->ls_idle);
ac->cursor = NULL;
ac->cfg.unlock();
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}
}
/*
* @brief AT<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
void at_poll_task(at_core_t *ac)
{
char rbuf[32];
int read_size;
read_size = __get_adapter(ac)->read(rbuf, sizeof(rbuf));
urc_recv_process(ac, rbuf, read_size);
resp_recv_process(ac, rbuf, read_size);
at_work_manager(ac);
}
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