1 /*
2 * Copyright (c) 2001 Tommy Bohlin <tommy@gatespace.com>
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26 /* raw.c
27 */
28
29 #include <irda.h>
30
31 /**********************************************************************
32 * Constants
33 **********************************************************************/
34
35 static const char id_raw[]="raw";
36
37 /**********************************************************************
38 * Data structures
39 **********************************************************************/
40
41 typedef struct Raw {
42 SerialDevice sd;
43 SerialPort* sp;
44 } Raw;
45
46 /**********************************************************************
47 * Methods
48 **********************************************************************/
49
rawSetSpeed(SerialDevice * sd,int speed)50 static int rawSetSpeed(SerialDevice* sd, int speed)
51 {
52 Raw* raw=(Raw*)sd;
53 SerialPort* sp=raw->sp;
54
55 sp->setSpeed(sp,speed);
56
57 return 0;
58 }
59
rawGetSpeedMask(SerialDevice * sd)60 static int rawGetSpeedMask(SerialDevice* sd)
61 {
62 Raw* raw=(Raw*)sd;
63
64 return raw->sp->getSpeedMask(raw->sp)&
65 (SPEED_2400|SPEED_9600|SPEED_19200|SPEED_38400|SPEED_57600|SPEED_115200);
66 }
67
rawGetMinTurnaroundMask(SerialDevice * sd)68 static int rawGetMinTurnaroundMask(SerialDevice* sd)
69 {
70 /* NB: Can we decrease this value? */
71
72 return MIN_TA_10ms;
73 }
74
rawGetChar(SerialDevice * sd)75 static int rawGetChar(SerialDevice* sd)
76 {
77 Raw* raw=(Raw*)sd;
78
79 return raw->sp->getChar(raw->sp);
80 }
81
rawPutChar(SerialDevice * sd,int c)82 static void rawPutChar(SerialDevice* sd, int c)
83 {
84 Raw* raw=(Raw*)sd;
85 raw->sp->putChar(raw->sp,c);
86 }
87
rawClose(SerialDevice * sd)88 static void rawClose(SerialDevice* sd)
89 {
90 Raw* raw=(Raw*)sd;
91
92 raw->sp->handle=0;
93 raw->sp->status=0;
94 freeMem(raw);
95 }
96
rawStatus(SerialPort * sp,int event)97 static void rawStatus(SerialPort* sp, int event)
98 {
99 Raw* raw=(Raw*)sp->handle;
100
101 if(raw->sd.status) raw->sd.status(&raw->sd,event);
102 }
103
104 /**********************************************************************
105 * External interface
106 **********************************************************************/
107
createRawDevice(SerialPort * sp)108 SerialDevice* createRawDevice(SerialPort* sp)
109 {
110 Raw* raw=allocMem(id_raw,sizeof(Raw));
111
112 raw->sd.close=rawClose;
113 raw->sd.setSpeed=rawSetSpeed;
114 raw->sd.getSpeedMask=rawGetSpeedMask;
115 raw->sd.getMinTurnaroundMask=rawGetMinTurnaroundMask;
116 raw->sd.getChar=rawGetChar;
117 raw->sd.putChar=rawPutChar;
118 raw->sd.handle=0;
119 raw->sd.status=0;
120 raw->sp=sp;
121
122 sp->handle=raw;
123 sp->status=rawStatus;
124
125 return &raw->sd;
126 }
127