xref: /freebsd/sys/dev/bhnd/bhnd_match.h (revision 792bbaba989533a1fc93823df1720c8c4aaf0442)
1 /*-
2  * Copyright (c) 2015-2016 Landon Fuller <landon@landonf.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_BHND_MATCH_H_
33 #define _BHND_BHND_MATCH_H_
34 
35 #include "bhnd_types.h"
36 
37 /**
38  * A hardware revision match descriptor.
39  */
40 struct bhnd_hwrev_match {
41 	uint16_t	start;	/**< first revision, or BHND_HWREV_INVALID
42 					     to match on any revision. */
43 	uint16_t	end;	/**< last revision, or BHND_HWREV_INVALID
44 					     to match on any revision. */
45 };
46 
47 /* Copy match field @p _name from @p _src */
48 #define	_BHND_COPY_MATCH_FIELD(_src, _name)	\
49 	.m.match._name = (_src)->m.match._name,	\
50 	._name = (_src)->_name
51 
52 /* Set match field @p _name with @p _value */
53 #define	_BHND_SET_MATCH_FIELD(_name, _value)	\
54 	.m.match._name = 1, ._name = _value
55 
56 /**
57  * Wildcard hardware revision match descriptor.
58  */
59 #define	BHND_HWREV_ANY		{ BHND_HWREV_INVALID, BHND_HWREV_INVALID }
60 #define	BHND_HWREV_IS_ANY(_m)	\
61 	((_m)->start == BHND_HWREV_INVALID && (_m)->end == BHND_HWREV_INVALID)
62 
63 /**
64  * Hardware revision match descriptor for an inclusive range.
65  *
66  * @param _start The first applicable hardware revision.
67  * @param _end The last applicable hardware revision, or BHND_HWREV_INVALID
68  * to match on any revision.
69  */
70 #define	BHND_HWREV_RANGE(_start, _end)	{ _start, _end }
71 
72 /**
73  * Hardware revision match descriptor for a single revision.
74  *
75  * @param _hwrev The hardware revision to match on.
76  */
77 #define	BHND_HWREV_EQ(_hwrev)	BHND_HWREV_RANGE(_hwrev, _hwrev)
78 
79 /**
80  * Hardware revision match descriptor for any revision equal to or greater
81  * than @p _start.
82  *
83  * @param _start The first hardware revision to match on.
84  */
85 #define	BHND_HWREV_GTE(_start)	BHND_HWREV_RANGE(_start, BHND_HWREV_INVALID)
86 
87 /**
88  * Hardware revision match descriptor for any revision equal to or less
89  * than @p _end.
90  *
91  * @param _end The last hardware revision to match on.
92  */
93 #define	BHND_HWREV_LTE(_end)	BHND_HWREV_RANGE(0, _end)
94 
95 /**
96  * A bhnd(4) core match descriptor.
97  */
98 struct bhnd_core_match {
99 	/** Select fields to be matched */
100 	union {
101 		uint8_t match_flags;
102 		struct {
103 			uint8_t
104 			    core_vendor:1,
105 			    core_id:1,
106 			    core_rev:1,
107 			    core_class:1,
108 			    core_idx:1,
109 			    core_unit:1,
110 			    flags_unused:2;
111 		} match;
112 	} m;
113 
114 	uint16_t		core_vendor;	/**< required JEP106 device vendor */
115 	uint16_t		core_id;	/**< required core ID */
116 	struct bhnd_hwrev_match	core_rev;	/**< matching core revisions. */
117 	bhnd_devclass_t		core_class;	/**< required bhnd class */
118 	u_int			core_idx;	/**< required core index */
119 	int			core_unit;	/**< required core unit */
120 };
121 
122 #define	_BHND_CORE_MATCH_COPY(_src)			\
123 	_BHND_COPY_MATCH_FIELD(_src, core_vendor),	\
124 	_BHND_COPY_MATCH_FIELD(_src, core_id),		\
125 	_BHND_COPY_MATCH_FIELD(_src, core_rev),		\
126 	_BHND_COPY_MATCH_FIELD(_src, core_class),	\
127 	_BHND_COPY_MATCH_FIELD(_src, core_idx),		\
128 	_BHND_COPY_MATCH_FIELD(_src, core_unit)		\
129 
130 #define	BHND_MATCH_CORE_VENDOR(_v)	_BHND_SET_MATCH_FIELD(core_vendor, _v)
131 #define	BHND_MATCH_CORE_ID(_id)		_BHND_SET_MATCH_FIELD(core_id, _id)
132 #define	BHND_MATCH_CORE_REV(_rev)	_BHND_SET_MATCH_FIELD(core_rev,	\
133 					    BHND_ ## _rev)
134 #define	BHND_MATCH_CORE_CLASS(_cls)	_BHND_SET_MATCH_FIELD(core_class, _cls)
135 #define	BHND_MATCH_CORE_IDX(_idx)	_BHND_SET_MATCH_FIELD(core_idx, _idx)
136 #define	BHND_MATCH_CORE_UNIT(_unit)	_BHND_SET_MATCH_FIELD(core_unit, _unit)
137 
138 /**
139  * Match against the given @p _vendor and @p _id,
140  */
141 #define	BHND_MATCH_CORE(_vendor, _id)		\
142 	BHND_MATCH_CORE_VENDOR(_vendor),	\
143 	BHND_MATCH_CORE_ID(_id)
144 
145 /**
146  * A bhnd(4) chip match descriptor.
147  */
148 struct bhnd_chip_match {
149 	/** Select fields to be matched */
150 	union {
151 		uint8_t match_flags;
152 		struct {
153 			uint8_t
154 			    chip_id:1,
155 			    chip_rev:1,
156 			    chip_pkg:1,
157 			    flags_unused:5;
158 		} match;
159 
160 	} m;
161 
162 	uint16_t		chip_id;	/**< required chip id */
163 	struct bhnd_hwrev_match	chip_rev;	/**< matching chip revisions */
164 	uint8_t			chip_pkg;	/**< required package */
165 };
166 
167 #define	_BHND_CHIP_MATCH_COPY(_src)		\
168 	_BHND_COPY_MATCH_FIELD(_src, chip_id),	\
169 	_BHND_COPY_MATCH_FIELD(_src, chip_rev),	\
170 	_BHND_COPY_MATCH_FIELD(_src, chip_pkg)	\
171 
172 /** Set the required chip ID within a bhnd match descriptor */
173 #define	BHND_CHIP_ID(_cid)	_BHND_SET_MATCH_FIELD(chip_id,	\
174 					    BHND_CHIPID_ ## _cid)
175 
176 /** Set the required chip revision range within a bhnd match descriptor */
177 #define	BHND_CHIP_REV(_rev)	_BHND_SET_MATCH_FIELD(chip_rev,	\
178 					    BHND_ ## _rev)
179 
180 /** Set the required package ID within a bhnd match descriptor */
181 #define	BHND_CHIP_PKG(_pkg)	_BHND_SET_MATCH_FIELD(chip_pkg,	\
182 					    BHND_PKGID_ ## _pkg)
183 
184 /** Set the required chip and package ID within a bhnd match descriptor */
185 #define	BHND_CHIP_IP(_cid, _pkg)	\
186     BHND_CHIP_ID(_cid), BHND_CHIP_PKG(_pkg)
187 
188 /** Set the required chip ID, package ID, and revision within a bhnd_device_match
189  *  instance */
190 #define	BHND_CHIP_IPR(_cid, _pkg, _rev)	\
191     BHND_CHIP_ID(_cid), BHND_CHIP_PKG(_pkg), BHND_CHIP_REV(_rev)
192 
193 /** Set the required chip ID and revision within a bhnd_device_match
194  *  instance */
195 #define	BHND_CHIP_IR(_cid, _rev)	\
196     BHND_CHIP_ID(_cid), BHND_CHIP_REV(_rev)
197 
198 /**
199  * A bhnd(4) board match descriptor.
200  */
201 struct bhnd_board_match {
202 	/** Select fields to be matched */
203 	union {
204 		uint8_t match_flags;
205 		struct {
206 			uint8_t
207 			    board_vendor:1,
208 			    board_type:1,
209 			    board_rev:1,
210 			    board_srom_rev:1,
211 			    flags_unused:4;
212 		} match;
213 	} m;
214 
215 	uint16_t		board_vendor;	/**< required board vendor */
216 	uint16_t		board_type;	/**< required board type */
217 	struct bhnd_hwrev_match	board_rev;	/**< matching board revisions */
218 	struct bhnd_hwrev_match	board_srom_rev;	/**< matching board srom revisions */
219 };
220 
221 #define	_BHND_BOARD_MATCH_COPY(_src)			\
222 	_BHND_COPY_MATCH_FIELD(_src, board_vendor),	\
223 	_BHND_COPY_MATCH_FIELD(_src, board_type),	\
224 	_BHND_COPY_MATCH_FIELD(_src, board_rev),	\
225 	_BHND_COPY_MATCH_FIELD(_src, board_srom_rev)
226 
227 /** Set the required board vendor within a bhnd match descriptor */
228 #define	BHND_MATCH_BOARD_VENDOR(_v)	_BHND_SET_MATCH_FIELD(board_vendor, _v)
229 
230 /** Set the required board type within a bhnd match descriptor */
231 #define	BHND_MATCH_BOARD_TYPE(_type)	_BHND_SET_MATCH_FIELD(board_type, \
232 					    BHND_BOARD_ ## _type)
233 /** Set the required SROM revision range within a bhnd match descriptor */
234 #define	BHND_MATCH_SROMREV(_rev)	_BHND_SET_MATCH_FIELD(board_srom_rev, \
235 					    BHND_HWREV_ ## _rev)
236 
237 /** Set the required board revision range within a bhnd match descriptor */
238 #define	BHND_MATCH_BOARD_REV(_rev)	_BHND_SET_MATCH_FIELD(board_rev, \
239 					    BHND_ ## _rev)
240 
241 /** Set the required board vendor and type within a bhnd match descriptor */
242 #define	BHND_MATCH_BOARD(_vend, _type)	\
243 	BHND_MATCH_BOARD_VENDOR(_vend), BHND_MATCH_BOARD_TYPE(_type)
244 
245 
246 /**
247  * A bhnd(4) device match descriptor.
248  *
249  * @warning Matching on board attributes relies on NVRAM access, and will
250  * fail if a valid NVRAM device cannot be found, or is not yet attached.
251  */
252 struct bhnd_device_match {
253 	/** Select fields to be matched */
254 	union {
255 		uint16_t match_flags;
256 		struct {
257 			uint16_t
258 			core_vendor:1,
259 			core_id:1,
260 			core_rev:1,
261 			core_class:1,
262 			core_idx:1,
263 			core_unit:1,
264 			chip_id:1,
265 			chip_rev:1,
266 			chip_pkg:1,
267 			board_vendor:1,
268 			board_type:1,
269 			board_rev:1,
270 			board_srom_rev:1,
271 			flags_unused:1;
272 		} match;
273 	} m;
274 
275 	uint16_t		core_vendor;	/**< required JEP106 device vendor */
276 	uint16_t		core_id;	/**< required core ID */
277 	struct bhnd_hwrev_match	core_rev;	/**< matching core revisions. */
278 	bhnd_devclass_t		core_class;	/**< required bhnd class */
279 	u_int			core_idx;	/**< required core index */
280 	int			core_unit;	/**< required core unit */
281 
282 	uint16_t		chip_id;	/**< required chip id */
283 	struct bhnd_hwrev_match	chip_rev;	/**< matching chip revisions */
284 	uint8_t			chip_pkg;	/**< required package */
285 
286 	uint16_t		board_vendor;	/**< required board vendor */
287 	uint16_t		board_type;	/**< required board type */
288 	struct bhnd_hwrev_match	board_rev;	/**< matching board revisions */
289 	struct bhnd_hwrev_match	board_srom_rev;	/**< matching board srom revisions */
290 };
291 
292 /** Define a wildcard match requirement (matches on any device). */
293 #define	BHND_MATCH_ANY		.m.match_flags = 0
294 #define	BHND_MATCH_IS_ANY(_m)	\
295 	((_m)->m.match_flags == 0)
296 
297 #endif /* _BHND_BHND_MATCH_H_ */
298