dev_verbose.h revision 1.4
1 /* $NetBSD: dev_verbose.h,v 1.4 2020/08/11 12:10:10 uwe 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_DRIVER, 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_DRIVER); \ 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
Indexes created Sun Sep 28 16:09:52 GMT 2025