bhnd(4): Implement common API for IOST/IOCTL register access and core reset
[freebsd.git] / sys / dev / bhnd / bhndvar.h
1 /*-
2  * Copyright (c) 2015-2016 Landon Fuller <landonf@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer,
10  *    without modification.
11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13  *    redistribution must be conditioned upon including a substantially
14  *    similar Disclaimer requirement for further binary redistribution.
15  *
16  * NO WARRANTY
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27  * THE POSSIBILITY OF SUCH DAMAGES.
28  * 
29  * $FreeBSD$
30  */
31
32 #ifndef _BHND_BHNDVAR_H_
33 #define _BHND_BHNDVAR_H_
34
35 #include <sys/param.h>
36 #include <sys/bus.h>
37 #include <sys/malloc.h>
38
39 #include "bhnd.h"
40
41 /*
42  * Definitions shared by bhnd(4) bus and bhndb(4) bridge driver implementations.
43  */
44
45 MALLOC_DECLARE(M_BHND);
46 DECLARE_CLASS(bhnd_driver);
47
48 int                      bhnd_generic_attach(device_t dev);
49 int                      bhnd_generic_detach(device_t dev);
50 int                      bhnd_generic_shutdown(device_t dev);
51 int                      bhnd_generic_resume(device_t dev);
52 int                      bhnd_generic_suspend(device_t dev);
53
54 int                      bhnd_generic_get_probe_order(device_t dev,
55                              device_t child);
56
57 int                      bhnd_generic_alloc_pmu(device_t dev,
58                              device_t child);
59 int                      bhnd_generic_release_pmu(device_t dev,
60                              device_t child);
61 int                      bhnd_generic_request_clock(device_t dev,
62                              device_t child, bhnd_clock clock);
63 int                      bhnd_generic_enable_clocks(device_t dev,
64                              device_t child, uint32_t clocks);
65 int                      bhnd_generic_request_ext_rsrc(device_t dev,
66                              device_t child, u_int rsrc);
67 int                      bhnd_generic_release_ext_rsrc(device_t dev,
68                              device_t child, u_int rsrc);
69
70 int                      bhnd_generic_print_child(device_t dev,
71                              device_t child);
72 void                     bhnd_generic_probe_nomatch(device_t dev,
73                              device_t child);
74
75 void                     bhnd_generic_child_deleted(device_t dev,
76                              device_t child);
77 int                      bhnd_generic_suspend_child(device_t dev,
78                              device_t child);
79 int                      bhnd_generic_resume_child(device_t dev,
80                              device_t child);
81
82 int                      bhnd_generic_get_nvram_var(device_t dev,
83                              device_t child, const char *name, void *buf,
84                              size_t *size, bhnd_nvram_type type);
85
86 /**
87  * bhnd driver instance state. Must be first member of all subclass
88  * softc structures.
89  */
90 struct bhnd_softc {
91         device_t        dev;                    /**< bus device */
92
93         bool            attach_done;            /**< true if initialization of 
94                                                   *  all platform devices has
95                                                   *  been completed */
96         device_t        chipc_dev;              /**< bhnd_chipc device */ 
97         device_t        nvram_dev;              /**< bhnd_nvram device, if any */
98         device_t        pmu_dev;                /**< bhnd_pmu device, if any */
99 };
100
101 #endif /* _BHND_BHNDVAR_H_ */