| 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 | |