dev_verbose.h revision 1.7
1 /* $NetBSD: dev_verbose.h,v 1.7 2021/06/15 23:24:57 riastradh 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 #ifdef _KERNEL 29 #include <sys/module_hook.h> 30 #endif 31 32 const char *dev_findvendor(char *, size_t, const char *, size_t, 33 const uint16_t *, size_t, uint16_t); 34 const char *dev_findproduct(char *, size_t, const char *, size_t, 35 const uint16_t *, size_t, uint16_t, uint16_t); 36 37 #define DEV_VERBOSE_COMMON_DEFINE(tag) \ 38 static const char * \ 39 tag ## _findvendor_real(char *buf, size_t len, uint16_t vendor) \ 40 { \ 41 return dev_findvendor(buf, len, tag ## _words, \ 42 __arraycount(tag ## _words), tag ## _vendors, \ 43 __arraycount(tag ## _vendors), vendor); \ 44 } \ 45 \ 46 static const char * \ 47 tag ## _findproduct_real(char *buf, size_t len, uint16_t vendor, \ 48 uint16_t product) \ 49 { \ 50 return dev_findproduct(buf, len, tag ## _words, \ 51 __arraycount(tag ## _words), tag ## _products, \ 52 __arraycount(tag ## _products), vendor, product); \ 53 } \ 54 55 #ifdef _KERNEL 56 57 #define DEV_VERBOSE_KERNEL_DECLARE(tag) \ 58 MODULE_HOOK(tag ## _findvendor_hook, const char *, \ 59 (char *, size_t, uint16_t)); \ 60 MODULE_HOOK(tag ## _findproduct_hook, const char *, \ 61 (char *, size_t, uint16_t, uint16_t)); \ 62 extern int tag ## verbose_loaded; 63 64 #define DEV_VERBOSE_MODULE_DEFINE(tag, deps) \ 65 DEV_VERBOSE_COMMON_DEFINE(tag) \ 66 DEV_VERBOSE_KERNEL_DECLARE(tag) \ 67 \ 68 static int \ 69 tag ## verbose_modcmd(modcmd_t cmd, void *arg) \ 70 { \ 71 \ 72 switch (cmd) { \ 73 case MODULE_CMD_INIT: \ 74 MODULE_HOOK_SET(tag ## _findvendor_hook, \ 75 tag ## _findvendor_real); \ 76 MODULE_HOOK_SET(tag ## _findproduct_hook, \ 77 tag ## _findproduct_real); \ 78 tag ## verbose_loaded = 1; \ 79 return 0; \ 80 case MODULE_CMD_FINI: \ 81 tag ## verbose_loaded = 0; \ 82 MODULE_HOOK_UNSET(tag ## _findproduct_hook); \ 83 MODULE_HOOK_UNSET(tag ## _findvendor_hook); \ 84 return 0; \ 85 default: \ 86 return ENOTTY; \ 87 } \ 88 } \ 89 MODULE(MODULE_CLASS_DRIVER, tag ## verbose, deps) 90 91 #endif /* KERNEL */ 92 93 #define DEV_VERBOSE_DECLARE(tag) \ 94 extern const char * tag ## _findvendor(char *, size_t, uint16_t); \ 95 extern const char * tag ## _findproduct(char *, size_t, uint16_t, uint16_t) 96 97 #if defined(_KERNEL) 98 99 #define DEV_VERBOSE_DEFINE(tag) \ 100 DEV_VERBOSE_KERNEL_DECLARE(tag) \ 101 struct tag ## _findvendor_hook_t tag ## _findvendor_hook; \ 102 struct tag ## _findproduct_hook_t tag ## _findproduct_hook; \ 103 int tag ## verbose_loaded = 0; \ 104 \ 105 static void \ 106 tag ## _load_verbose(void) \ 107 { \ 108 \ 109 if (tag ## verbose_loaded == 0) \ 110 module_autoload(# tag "verbose", MODULE_CLASS_DRIVER); \ 111 } \ 112 \ 113 const char * \ 114 tag ## _findvendor(char *buf, size_t len, uint16_t vendor) \ 115 { \ 116 const char *retval = NULL; \ 117 \ 118 tag ## _load_verbose(); \ 119 MODULE_HOOK_CALL(tag ## _findvendor_hook, (buf, len, vendor), \ 120 (snprintf(buf, len, "vendor %4.4x", vendor), NULL), \ 121 retval); \ 122 return retval; \ 123 } \ 124 \ 125 const char * \ 126 tag ## _findproduct(char *buf, size_t len, uint16_t vendor, \ 127 uint16_t product) \ 128 { \ 129 const char *retval = NULL; \ 130 \ 131 tag ## _load_verbose(); \ 132 MODULE_HOOK_CALL(tag ## _findproduct_hook, \ 133 (buf, len, vendor, product), \ 134 (snprintf(buf, len, "product %4.4x", product), NULL), \ 135 retval); \ 136 return retval; \ 137 } \ 138 139 #else /* _KERNEL */ 140 141 #define DEV_VERBOSE_DEFINE(tag) \ 142 DEV_VERBOSE_COMMON_DEFINE(tag) \ 143 const char *tag ## _findvendor(char *buf, size_t len, uint16_t vendor) \ 144 { \ 145 \ 146 return tag ## _findvendor_real(buf, len, vendor); \ 147 } \ 148 \ 149 const char *tag ## _findproduct(char *buf, size_t len, uint16_t vendor, \ 150 uint16_t product) \ 151 { \ 152 \ 153 return tag ## _findproduct_real(buf, len, vendor, product); \ 154 } 155 156 #endif /* _KERNEL */ 157 158 #endif /* _DEV_DEV_VERBOSE_H_ */ 159
Indexes created Tue Oct 14 06:10:07 GMT 2025