1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004-07 Applied Micro Circuits Corporation.
5 * Copyright (c) 2004-05 Vinod Kashyap.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *	$FreeBSD$
30 */
31
32/*
33 * AMCC'S 3ware driver for 9000 series storage controllers.
34 *
35 * Author: Vinod Kashyap
36 * Modifications by: Adam Radford
37 */
38
39#ifndef TW_OSL_EXTERNS_H
40
41#define TW_OSL_EXTERNS_H
42
43/*
44 * Data structures and functions global to the OS Layer.
45 */
46
47/* External data structures. */
48
49extern int	mp_ncpus;
50
51/* Functions in tw_osl_freebsd.c */
52
53/* Build a firmware passthru cmd pkt, and submit it to CL. */
54extern TW_INT32	tw_osli_fw_passthru(struct twa_softc *sc, TW_INT8 *buf);
55
56/* Get an OSL internal request context packet. */
57extern struct tw_osli_req_context *tw_osli_get_request(struct twa_softc *sc);
58
59/* Map data to DMA'able memory. */
60extern TW_INT32	tw_osli_map_request(struct tw_osli_req_context *req);
61
62/* Undo mapping. */
63extern TW_VOID	tw_osli_unmap_request(struct tw_osli_req_context *req);
64
65/* Functions in tw_osl_cam.c */
66
67/* Attach to CAM. */
68extern TW_INT32	tw_osli_cam_attach(struct twa_softc *sc);
69
70/* Detach from CAM. */
71extern TW_VOID	tw_osli_cam_detach(struct twa_softc *sc);
72
73/* Request CAM for a bus scan. */
74extern TW_INT32	tw_osli_request_bus_scan(struct twa_softc *sc);
75
76/* Freeze ccb flow from CAM. */
77extern TW_VOID	tw_osli_disallow_new_requests(struct twa_softc *sc,
78	struct tw_cl_req_handle *req_handle);
79
80/* OSL's completion routine for SCSI I/O's. */
81extern TW_VOID	tw_osl_complete_io(struct tw_cl_req_handle *req_handle);
82
83/* OSL's completion routine for passthru requests. */
84extern TW_VOID	tw_osl_complete_passthru(struct tw_cl_req_handle *req_handle);
85
86#endif /* TW_OSL_EXTERNS_H */
87