Contiki-NG
rs232.c
1 /*
2  * Copyright (c) 2006, Swedish Institute of Computer Science.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  */
30 
31 #include "lib/sensors.h"
32 #include "dev/rs232.h"
33 #include "dev/serial-line.h"
34 #include "lib/simEnvChange.h"
35 #include <string.h>
36 #include <stdio.h>
37 
38 const struct simInterface rs232_interface;
39 
40 #define SERIAL_BUF_SIZE 2048
41 
42 // COOJA variables
43 char simSerialReceivingData[SERIAL_BUF_SIZE];
44 int simSerialReceivingLength;
45 char simSerialReceivingFlag;
46 
47 static int (* input_handler)(unsigned char) = NULL;
48 
49 void simlog_char(char c);
50 /*-----------------------------------------------------------------------------------*/
51 void rs232_init(void) { }
52 /*-----------------------------------------------------------------------------------*/
53 void rs232_set_speed(unsigned char speed) { }
54 /*-----------------------------------------------------------------------------------*/
55 void
56 rs232_set_input(int (*f)(unsigned char))
57 {
58  input_handler = f;
59 }
60 /*-----------------------------------------------------------------------------------*/
61 void rs232_send(char c) {
62  printf("%c", c);
63 }
64 /*-----------------------------------------------------------------------------------*/
65 void
66 rs232_print(char *message)
67 {
68  printf("%s", message);
69 }
70 /*-----------------------------------------------------------------------------------*/
71 void
72 slip_arch_writeb(unsigned char c)
73 {
74  simlog_char(c);
75 }
76 /*-----------------------------------------------------------------------------------*/
77 static void
78 doInterfaceActionsBeforeTick(void)
79 {
80  int i;
81 
82  if (!simSerialReceivingFlag) {
83  return;
84  }
85 
86  if (simSerialReceivingLength == 0) {
87  /* Error, should not be zero */
88  simSerialReceivingFlag = 0;
89  return;
90  }
91 
92  /* Notify specified rs232 handler */
93  if(input_handler != NULL) {
94  for (i=0; i < simSerialReceivingLength; i++) {
95  input_handler(simSerialReceivingData[i]);
96  }
97  } else {
98  /* Notify serial process */
99  for (i=0; i < simSerialReceivingLength; i++) {
100  serial_line_input_byte(simSerialReceivingData[i]);
101  }
103  }
104 
105  simSerialReceivingLength = 0;
106  simSerialReceivingFlag = 0;
107 }
108 /*-----------------------------------------------------------------------------------*/
109 static void
110 doInterfaceActionsAfterTick(void)
111 {
112 }
113 /*-----------------------------------------------------------------------------------*/
114 
115 SIM_INTERFACE(rs232_interface,
116  doInterfaceActionsBeforeTick,
117  doInterfaceActionsAfterTick);
Header file for COOJA RS232 driver.
void rs232_send(char c)
Print a character on RS232.
Definition: rs232.c:61
void slip_arch_writeb(unsigned char c)
Write a single byte over SLIP.
Definition: rs232.c:72
int serial_line_input_byte(unsigned char c)
Get one byte of input from the serial driver.
Definition: serial-line.c:64
void rs232_set_input(int(*f)(unsigned char))
Set an input handler for incoming RS232 data.
Definition: rs232.c:56
void rs232_set_speed(unsigned char speed)
Configure the speed of the RS232 hardware.
Definition: rs232.c:53
void rs232_init(void)
Initialize the RS232 module.
Definition: rs232.c:51
void rs232_print(char *text)
Print a text string on RS232.
Definition: rs232.c:66
Generic serial I/O process header filer.