148 lines
3 KiB
C++
148 lines
3 KiB
C++
|
/* $Id$ */
|
||
|
|
||
|
/* @file
|
||
|
* User Console Interface
|
||
|
*/
|
||
|
|
||
|
#ifndef __CONSOLE_HH__
|
||
|
#define __CONSOLE_HH__
|
||
|
|
||
|
#include <iostream>
|
||
|
|
||
|
#include "circlebuf.hh"
|
||
|
#include "intr_control.hh"
|
||
|
#include "pollevent.hh"
|
||
|
#include "socket.hh"
|
||
|
#include "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;
|
||
|
|
||
|
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 intr_status;
|
||
|
int intr_enable;
|
||
|
|
||
|
// interrupt handle
|
||
|
IntrControl *intr;
|
||
|
|
||
|
public:
|
||
|
/////////////////
|
||
|
// OS interface
|
||
|
|
||
|
// Input a character from the console. Returns the character (if
|
||
|
// any) or -1 if there is no character pending on this console. If
|
||
|
// no further characters are pending, the (input) interrupt is
|
||
|
// cleared.
|
||
|
int in();
|
||
|
|
||
|
// Output a character to the console. This never fails, as this
|
||
|
// device doesn't model finite buffering capacity.
|
||
|
void out(char c);
|
||
|
void simple(char c);
|
||
|
|
||
|
enum {
|
||
|
TransmitInterrupt = 1,
|
||
|
ReceiveInterrupt = 2
|
||
|
};
|
||
|
|
||
|
// Read the current interrupt status of this console.
|
||
|
int intStatus();
|
||
|
|
||
|
// Set the interrupt enable bits.
|
||
|
int clearInt(int i);
|
||
|
void raiseInt(int i);
|
||
|
|
||
|
void initInt(IntrControl *i);
|
||
|
void setInt(int bits);
|
||
|
|
||
|
virtual void serialize();
|
||
|
virtual void unserialize(IniFile &db, const std::string &category,
|
||
|
ConfigNode *node);
|
||
|
};
|
||
|
|
||
|
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__
|