mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 18:21:39 +01:00
90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
/*
|
|
****************************************************************************
|
|
* (C) 2006 - Grzegorz Milos - Cambridge University
|
|
****************************************************************************
|
|
*
|
|
* File: console.h
|
|
* Author: Grzegorz Milos
|
|
* Changes:
|
|
*
|
|
* Date: Mar 2006
|
|
*
|
|
* Environment: Xen Minimal OS
|
|
* Description: Console interface.
|
|
*
|
|
* Handles console I/O. Defines printk.
|
|
*
|
|
****************************************************************************
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to
|
|
* deal in the Software without restriction, including without limitation the
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#ifndef _LIB_CONSOLE_H_
|
|
#define _LIB_CONSOLE_H_
|
|
|
|
#include <mini-os/os.h>
|
|
#include <mini-os/traps.h>
|
|
#include <mini-os/types.h>
|
|
#include <xen/grant_table.h>
|
|
#include <xenbus.h>
|
|
#include <xen/io/console.h>
|
|
#include <stdarg.h>
|
|
|
|
struct consfront_dev {
|
|
domid_t dom;
|
|
|
|
struct xencons_interface *ring;
|
|
grant_ref_t ring_ref;
|
|
evtchn_port_t evtchn;
|
|
|
|
char *nodename;
|
|
char *backend;
|
|
|
|
xenbus_event_queue events;
|
|
|
|
#ifdef HAVE_LIBC
|
|
int fd;
|
|
#endif
|
|
};
|
|
|
|
|
|
|
|
void print(int direct, const char *fmt, va_list args);
|
|
void printk(const char *fmt, ...);
|
|
void xprintk(const char *fmt, ...);
|
|
|
|
#define tprintk(_fmt, _args...) printk("[%s] " _fmt, current->name, ##_args)
|
|
|
|
void xencons_rx(char *buf, unsigned len, struct pt_regs *regs);
|
|
void xencons_tx(void);
|
|
|
|
void init_console(void);
|
|
void console_print(struct consfront_dev *dev, char *data, int length);
|
|
void fini_console(struct consfront_dev *dev);
|
|
|
|
/* Low level functions defined in xencons_ring.c */
|
|
extern struct wait_queue_head console_queue;
|
|
struct consfront_dev *xencons_ring_init(void);
|
|
struct consfront_dev *init_consfront(char *_nodename);
|
|
int xencons_ring_send(struct consfront_dev *dev, const char *data, unsigned len);
|
|
int xencons_ring_send_no_notify(struct consfront_dev *dev, const char *data, unsigned len);
|
|
int xencons_ring_avail(struct consfront_dev *dev);
|
|
int xencons_ring_recv(struct consfront_dev *dev, char *data, unsigned len);
|
|
void free_consfront(struct consfront_dev *dev);
|
|
|
|
#endif /* _LIB_CONSOLE_H_ */
|