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/*
* $FreeBSD: src/sys/dev/xen/console/xencons_ring.h,v 1.2.2.1.6.1 2010/12/21 17:09:25 kensmith Exp $
*
*/
#ifndef _XENCONS_RING_H
#define _XENCONS_RING_H
#define CN_LOCK(l) \
do { \
if (panicstr == NULL) \
mtx_lock_spin(&(l)); \
} while (0)
#define CN_UNLOCK(l) \
do { \
if (panicstr == NULL) \
mtx_unlock_spin(&(l)); \
} while (0)
int xencons_ring_init(void);
int xencons_ring_send(const char *data, unsigned len);
void xencons_rx(char *buf, unsigned len);
void xencons_tx(void);
typedef void (xencons_receiver_func)(char *buf, unsigned len);
void xencons_ring_register_receiver(xencons_receiver_func *f);
void xencons_handle_input(void *unused);
int xencons_has_input(void);
#endif /* _XENCONS_RING_H */
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