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/*-
* Copyright (C) 2013 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NTB_HW_H_
#define _NTB_HW_H_
struct ntb_softc;
#define NTB_NUM_MW 2
#define NTB_LINK_DOWN 0
#define NTB_LINK_UP 1
enum ntb_hw_event {
NTB_EVENT_SW_EVENT0 = 0,
NTB_EVENT_SW_EVENT1,
NTB_EVENT_SW_EVENT2,
NTB_EVENT_HW_ERROR,
NTB_EVENT_HW_LINK_UP,
NTB_EVENT_HW_LINK_DOWN,
};
typedef void (*ntb_db_callback)(void *data, int db_num);
typedef void (*ntb_event_callback)(void *data, enum ntb_hw_event event);
int ntb_register_event_callback(struct ntb_softc *ntb, ntb_event_callback func);
void ntb_unregister_event_callback(struct ntb_softc *ntb);
int ntb_register_db_callback(struct ntb_softc *ntb, unsigned int idx,
void *data, ntb_db_callback func);
void ntb_unregister_db_callback(struct ntb_softc *ntb, unsigned int idx);
void *ntb_find_transport(struct ntb_softc *ntb);
struct ntb_softc *ntb_register_transport(struct ntb_softc *ntb,
void *transport);
void ntb_unregister_transport(struct ntb_softc *ntb);
int ntb_get_max_spads(struct ntb_softc *ntb);
int ntb_write_local_spad(struct ntb_softc *ntb, unsigned int idx, uint32_t val);
int ntb_read_local_spad(struct ntb_softc *ntb, unsigned int idx, uint32_t *val);
int ntb_write_remote_spad(struct ntb_softc *ntb, unsigned int idx,
uint32_t val);
int ntb_read_remote_spad(struct ntb_softc *ntb, unsigned int idx,
uint32_t *val);
void *ntb_get_mw_vbase(struct ntb_softc *ntb, unsigned int mw);
vm_paddr_t ntb_get_mw_pbase(struct ntb_softc *ntb, unsigned int mw);
u_long ntb_get_mw_size(struct ntb_softc *ntb, unsigned int mw);
void ntb_set_mw_addr(struct ntb_softc *ntb, unsigned int mw, uint64_t addr);
void ntb_ring_sdb(struct ntb_softc *ntb, unsigned int db);
bool ntb_query_link_status(struct ntb_softc *ntb);
device_t ntb_get_device(struct ntb_softc *ntb);
#endif /* _NTB_HW_H_ */
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