From c13c9806f957ebc675462737f4b328d3ab89e028 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Mon, 10 Jul 2023 17:29:22 +0800
Subject: [PATCH] update gpsd.c
---
gpsd/booster/atcmd.h | 87 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 87 insertions(+), 0 deletions(-)
diff --git a/gpsd/booster/atcmd.h b/gpsd/booster/atcmd.h
new file mode 100644
index 0000000..a84d564
--- /dev/null
+++ b/gpsd/booster/atcmd.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2022 Guo Wenxue
+ * Author: Guo Wenxue <guowenxue@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GPL license.
+ */
+
+#ifndef _ATCMD_H_
+#define _ATCMD_H_
+
+#include "comport.h"
+
+/* AT command common reply message max length */
+#define ATCMD_REPLY_LEN 1024 /* Max AT command reply message length */
+#define ATCMD_LEN 256 /* Max AT command length */
+
+/* AT command reply message got expect or error string */
+#define AT_OKSTR "\r\nOK\r\n" /* expect string always be OK */
+#define AT_ERRSTR "\r\nERROR\r\n" /* error string always be ERROR */
+
+/* AT command should be end by $AT_SUFFIX */
+#define AT_SUFFIX "\r\n"
+
+/* send_atcmd)( return value status */
+enum
+{
+ ATRES_ERROR, /* AT command reply got error string, such as "ERROR\r\n" */
+ ATRES_EXPECT, /* AT command reply got expect string, such as "OK\r\n" */
+ ATRES_TIMEOUT, /* AT command not get error/expect string, receive util timeout */
+};
+
+/* Description: this function used to send an AT command from serial port and wait for reply message from
+ * the communication module, and it will return once get expet/error string or timeout.
+ *
+ * Arugments:
+ * $comport: the serial port which connected to GPRS/3G/4G/NB-IoT/WiFi/BLE/Zigbee/LoRa...
+ * $at: the AT command need to be sent, without "\r\n"
+ * $timeout: wait for module reply for AT command timeout value, unit micro seconds(ms)
+ * $exepct: the expect string reply from communication module
+ * $error: the error string reply from communication module
+ * $reply: the module reply message output buffer
+ * $size: the output buffer ($reply) size
+ *
+ * Return value: <0: Function error 0: Got error string 1: Got expect string 2: Receive util timeout
+ *
+ */
+int send_atcmd(comport_t *comport, char *at, unsigned long timeout, char *expect, char *error, char *reply, int size);
+
+
+/*
+ * Description: Send AT command which will only reply by "OK" or "ERROR", such as AT:
+ * Reply: \r\nOK\r\n
+ *
+ * Return Value: 0: OK -X: ERROR
+ */
+int send_atcmd_check_ok(comport_t *comport, char *at, unsigned long timeout);
+
+
+/*
+ * Description: Send AT command which will reply by a value directly in a single line, such as AT+CGMM:
+ * Reply: \r\nEC20F\r\nOK\r\n
+ *
+ * Return Value: 0: OK -X: ERROR
+ */
+int send_atcmd_check_value(comport_t *comport, char *at, unsigned long timeout, char *reply, int size);
+
+/*
+ * Description: Parser the $value from $key like "xxx: " line, such as AT+CSQ:
+ * Reply: \r\n+CSQ: 26,99\r\nOK\r\n
+ *
+ * Return Value: 0: OK -X: Failure
+ */
+int parser_request_value(char *buf, char *key, char *value, int size);
+
+
+/*
+ * Description: Send AT command which will reply by the value with a prefix "+CMD: " line, such as AT+CSQ:
+ * Reply: \r\n+CSQ: 26,99\r\nOK\r\n
+ *
+ * Return Value: 0: OK -X: ERROR
+ */
+int send_atcmd_check_request(comport_t *comport, char *at, unsigned long timeout, char *repy, int size);
+
+
+#endif /* ----- #ifndef _ATCMD_H_ ----- */
+
--
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