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/*
* Written by Oron Peled <oron@actcom.co.il>
* Copyright (C) 2004-2006, Xorcom
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef XBUS_CORE_H
#define XBUS_CORE_H
#include "xpd.h"
#define MAX_BUSES 32
#define XFRAME_DATASIZE 512
struct xframe {
atomic_t frame_len;
byte *packets; /* max XFRAME_DATASIZE */
};
#define XFRAME_LEN(frame) atomic_read(&(frame)->frame_len)
int xbus_core_init(void); /* Initializer */
void xbus_core_shutdown(void); /* Terminator */
#ifdef XPP_DEBUGFS
/* Debugfs handling */
int xbus_log(xbus_t *xbus, xpd_t *xpd, int direction, const void *buf, unsigned long len);
#endif
/* Frame handling */
xframe_t *xbus_frame_new(xbus_t *xbus, gfp_t flags);
void xbus_frame_free(xbus_t *xbus, xframe_t *p);
void dump_xframe(const char msg[], const xbus_t *xbus, const xframe_t *xframe);
/*
* Return pointer to next packet slot in the frame
* or NULL if the frame is full.
*/
xpacket_t *xframe_next_packet(xframe_t *xframe, int len);
/* XBUS handling */
xbus_t *xbus_of(int xbus_num);
xpd_t *xpd_of(const xbus_t *xbus, int xpd_num);
xbus_t *xbus_new(xbus_ops_t *ops);
void xbus_remove(xbus_t *xbus);
void xbus_activate(xbus_t *xbus);
void xbus_disconnect(xbus_t *xbus);
void xbus_poller_notify(xbus_t *xbus, struct card_desc_struct *card_desc);
void xbus_reset_counters(xbus_t *xbus);
int xbus_register_xpd(xbus_t *xbus, xpd_t *xpd);
int xbus_unregister_xpd(xbus_t *xbus, xpd_t *xpd);
#endif /* XBUS_CORE_H */
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