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/* Copyright (C) 2007-2008 The Android Open Source Project
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** GNU General Public License for more details.
#ifndef _CHARPIPE_H
#define _CHARPIPE_H
#include "qemu-common.h"
/* open two connected character drivers that can be used to communicate by internal
* QEMU components. For Android, this is used to connect an emulated serial port
* with the android modem
extern int qemu_chr_open_charpipe( CharDriverState* *pfirst, CharDriverState* *psecond );
/* create a buffering character driver for a given endpoint. The result will buffer
* anything that is sent to it but cannot be sent to the endpoint immediately.
* On the other hand, if the endpoint calls can_read() or read(), these calls
* are passed immediately to the can_read() or read() handlers of the result.
extern CharDriverState* qemu_chr_open_buffer( CharDriverState* endpoint );
/* must be called from the main event loop to poll all charpipes */
extern void charpipe_poll( void );
#endif /* _CHARPIPE_H */