1 | /* $NetBSD: dev_verbose.h,v 1.2 2015/11/13 01:37:19 christos Exp $ */ |
2 | |
3 | /* |
4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions |
6 | * are met: |
7 | * 1. Redistributions of source code must retain the above copyright |
8 | * notice, this list of conditions and the following disclaimer. |
9 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * notice, this list of conditions and the following disclaimer in the |
11 | * documentation and/or other materials provided with the distribution. |
12 | * |
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
23 | */ |
24 | |
25 | #ifndef _DEV_DEV_VERBOSE_H_ |
26 | #define _DEV_DEV_VERBOSE_H_ |
27 | |
28 | const char *dev_findvendor(char *, size_t, const char *, size_t, |
29 | const uint16_t *, size_t, uint16_t); |
30 | const char *dev_findproduct(char *, size_t, const char *, size_t, |
31 | const uint16_t *, size_t, uint16_t, uint16_t); |
32 | |
33 | #define DEV_VERBOSE_COMMON_DEFINE(tag) \ |
34 | static const char * \ |
35 | tag ## _findvendor_real(char *buf, size_t len, uint16_t vendor) \ |
36 | { \ |
37 | return dev_findvendor(buf, len, tag ## _words, \ |
38 | __arraycount(tag ## _words), tag ## _vendors, \ |
39 | __arraycount(tag ## _vendors), vendor); \ |
40 | } \ |
41 | \ |
42 | static const char * \ |
43 | tag ## _findproduct_real(char *buf, size_t len, uint16_t vendor, \ |
44 | uint16_t product) \ |
45 | { \ |
46 | return dev_findproduct(buf, len, tag ## _words, \ |
47 | __arraycount(tag ## _words), tag ## _products, \ |
48 | __arraycount(tag ## _products), vendor, product); \ |
49 | } \ |
50 | |
51 | #ifdef _KERNEL |
52 | |
53 | #define DEV_VERBOSE_MODULE_DEFINE(tag, deps) \ |
54 | DEV_VERBOSE_COMMON_DEFINE(tag) \ |
55 | extern int tag ## verbose_loaded; \ |
56 | \ |
57 | static int \ |
58 | tag ## verbose_modcmd(modcmd_t cmd, void *arg) \ |
59 | { \ |
60 | static const char *(*saved_findvendor)(char *, size_t, \ |
61 | uint16_t); \ |
62 | static const char *(*saved_findproduct)(char *, size_t, \ |
63 | uint16_t, uint16_t); \ |
64 | \ |
65 | switch (cmd) { \ |
66 | case MODULE_CMD_INIT: \ |
67 | saved_findvendor = tag ## _findvendor; \ |
68 | saved_findproduct = tag ## _findproduct; \ |
69 | tag ## _findvendor = tag ## _findvendor_real; \ |
70 | tag ## _findproduct = tag ## _findproduct_real; \ |
71 | tag ## verbose_loaded = 1; \ |
72 | return 0; \ |
73 | case MODULE_CMD_FINI: \ |
74 | tag ## _findvendor = saved_findvendor; \ |
75 | tag ## _findproduct = saved_findproduct; \ |
76 | tag ## verbose_loaded = 0; \ |
77 | return 0; \ |
78 | default: \ |
79 | return ENOTTY; \ |
80 | } \ |
81 | } \ |
82 | MODULE(MODULE_CLASS_MISC, tag ## verbose, deps) |
83 | |
84 | #endif /* KERNEL */ |
85 | |
86 | #define DEV_VERBOSE_DECLARE(tag) \ |
87 | extern const char * (*tag ## _findvendor)(char *, size_t, uint16_t); \ |
88 | extern const char * (*tag ## _findproduct)(char *, size_t, uint16_t, uint16_t) |
89 | |
90 | #if defined(_KERNEL) |
91 | #define DEV_VERBOSE_DEFINE(tag) \ |
92 | int tag ## verbose_loaded = 0; \ |
93 | \ |
94 | static void \ |
95 | tag ## _load_verbose(void) \ |
96 | { \ |
97 | \ |
98 | if (tag ## verbose_loaded == 0) \ |
99 | module_autoload(# tag "verbose", MODULE_CLASS_MISC); \ |
100 | } \ |
101 | \ |
102 | static const char * \ |
103 | tag ## _findvendor_stub(char *buf, size_t len, uint16_t vendor) \ |
104 | { \ |
105 | \ |
106 | tag ## _load_verbose(); \ |
107 | if (tag ## verbose_loaded) \ |
108 | return tag ## _findvendor(buf, len, vendor); \ |
109 | else { \ |
110 | snprintf(buf, len, "vendor %4.4x", vendor); \ |
111 | return NULL; \ |
112 | } \ |
113 | } \ |
114 | \ |
115 | static const char * \ |
116 | tag ## _findproduct_stub(char *buf, size_t len, uint16_t vendor, \ |
117 | uint16_t product) \ |
118 | { \ |
119 | \ |
120 | tag ## _load_verbose(); \ |
121 | if (tag ## verbose_loaded) \ |
122 | return tag ## _findproduct(buf, len, vendor, product); \ |
123 | else { \ |
124 | snprintf(buf, len, "product %4.4x", product); \ |
125 | return NULL; \ |
126 | } \ |
127 | } \ |
128 | \ |
129 | const char *(*tag ## _findvendor)(char *, size_t, uint16_t) = \ |
130 | tag ## _findvendor_stub; \ |
131 | const char *(*tag ## _findproduct)(char *, size_t, uint16_t, uint16_t) =\ |
132 | tag ## _findproduct_stub \ |
133 | |
134 | #else |
135 | |
136 | #define DEV_VERBOSE_DEFINE(tag) \ |
137 | DEV_VERBOSE_COMMON_DEFINE(tag) \ |
138 | const char *(*tag ## _findvendor)(char *, size_t, uint16_t) = \ |
139 | tag ## _findvendor_real; \ |
140 | const char *(*tag ## _findproduct)(char *, size_t, uint16_t, uint16_t) =\ |
141 | tag ## _findproduct_real \ |
142 | |
143 | #endif /* _KERNEL */ |
144 | |
145 | #endif /* _DEV_DEV_VERBOSE_H_ */ |
146 | |