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/comport.h | 69 ++++++++++++++++++++++++++++++++++
1 files changed, 69 insertions(+), 0 deletions(-)
diff --git a/gpsd/booster/comport.h b/gpsd/booster/comport.h
new file mode 100644
index 0000000..a5a04b5
--- /dev/null
+++ b/gpsd/booster/comport.h
@@ -0,0 +1,69 @@
+/*
+ * 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 _COMPORT_H_
+#define _COMPORT_H_
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <termios.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+
+#define CONFIG_DEF_FRAGSIZE 128
+typedef struct comport_s
+{
+ char devname[32];
+ unsigned char databit, parity, stopbit, flowctrl;
+ long baudrate;
+
+ int fd;
+ int fragsize; /* frag size when do large data send */
+} comport_t;
+
+
+/*
+ * description: Open the comport and returned by $comport
+ *
+ * input args: $comport: corresponding comport handler
+ * $devname: The comport device name path, such as '/dev/ttyS3'
+ * $baudrate: The baudrate, such as 115200
+ * $settings: The databit,parity,stopbit,flowctrl settings, such as '8N1N'
+ *
+ * return value: The comport opened file description, <0 means failure
+ */
+extern int comport_open(comport_t *comport, const char *devname, long baudrate, const char *settings);
+
+/*
+ * description: close comport
+ * input args: $comport: corresponding comport handler
+ */
+extern void comport_close(comport_t *comport);
+
+/*
+ * description: write $bytes $data to $comport
+ * return value: 0: write ok <0: write failure
+ */
+extern int comport_send(comport_t *comport, char *data, int data_bytes);
+
+/*
+ * description: read data from $comport in $timeout <ms> to $buf no more than $buf_size bytes
+ * return value: the actual read data bytes, <0: read failure
+ */
+#define TIMEOUT_NONE 0
+extern int comport_recv(comport_t *comport, char *buf, int buf_size, unsigned long timeout);
+
+#endif
--
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