1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* @file
* User Console Interface
*/
#ifndef __CONSOLE_HH__
#define __CONSOLE_HH__
#include <iostream>
#include "base/circlebuf.hh"
#include "cpu/intr_control.hh"
#include "base/pollevent.hh"
#include "base/socket.hh"
#include "sim/sim_object.hh"
class ConsoleListener;
class SimConsole : public SimObject
{
protected:
class Event : public PollEvent
{
protected:
SimConsole *cons;
public:
Event(SimConsole *c, int fd, int e);
void process(int revent);
};
friend class Event;
Event *event;
protected:
int number;
int in_fd;
int out_fd;
protected:
ConsoleListener *listener;
public:
SimConsole(const std::string &name, const std::string &file, int num);
~SimConsole();
protected:
CircleBuf txbuf;
CircleBuf rxbuf;
std::ostream *outfile;
#if TRACING_ON == 1
CircleBuf linebuf;
#endif
public:
///////////////////////
// Terminal Interface
void attach(int fd, ConsoleListener *l = NULL) { attach(fd, fd, l); }
void attach(int in, int out, ConsoleListener *l = NULL);
void detach();
void data();
void close();
void read(uint8_t &c) { read(&c, 1); }
size_t read(uint8_t *buf, size_t len);
void write(uint8_t c) { write(&c, 1); }
size_t write(const uint8_t *buf, size_t len);
void configTerm();
protected:
// interrupt status/enable
int _status;
int _enable;
// interrupt handle
IntrControl *intr;
public:
/////////////////
// OS interface
// Get a character from the console.
// return of -1 means there is no character pending.
// Interrupts are cleared when the buffer is empty.
int in();
// Send a character to the console
void out(char c, bool raise_int = true);
enum {
TransmitInterrupt = 1,
ReceiveInterrupt = 2
};
// Read the current interrupt status of this console.
int intStatus() { return _status; }
// Set the interrupt enable bits.
int clearInt(int i);
void raiseInt(int i);
void initInt(IntrControl *i);
void setInt(int bits);
virtual void serialize(std::ostream &os);
virtual void unserialize(Checkpoint *cp, const std::string §ion);
};
class ConsoleListener : public SimObject
{
protected:
class Event : public PollEvent
{
protected:
ConsoleListener *listener;
public:
Event(ConsoleListener *l, int fd, int e)
: PollEvent(fd, e), listener(l) {}
void process(int revent);
};
friend class Event;
Event *event;
typedef std::list<SimConsole *> list_t;
typedef list_t::iterator iter_t;
list_t ConsoleList;
protected:
ListenSocket listener;
public:
ConsoleListener(const std::string &name);
~ConsoleListener();
void add(SimConsole *cons);
void accept();
void listen(int port);
};
#endif // __CONSOLE_HH__
|
