NetBSD/sys/dev/dev_verbose.h

160 lines
5.3 KiB
C

/* $NetBSD: dev_verbose.h,v 1.8 2021/06/29 21:03:36 pgoyette Exp $ */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_DEV_VERBOSE_H_
#define _DEV_DEV_VERBOSE_H_
#ifdef _KERNEL
#include <sys/module_hook.h>
#endif
const char *dev_findvendor(char *, size_t, const char *, size_t,
const uint32_t *, size_t, uint32_t, const char *);
const char *dev_findproduct(char *, size_t, const char *, size_t,
const uint32_t *, size_t, uint32_t, uint32_t, const char *);
#define DEV_VERBOSE_COMMON_DEFINE(tag) \
static const char * \
tag ## _findvendor_real(char *buf, size_t len, uint32_t vendor) \
{ \
return dev_findvendor(buf, len, tag ## _words, \
__arraycount(tag ## _words), tag ## _vendors, \
__arraycount(tag ## _vendors), vendor, tag ## _id1_format); \
} \
\
static const char * \
tag ## _findproduct_real(char *buf, size_t len, uint32_t vendor, \
uint32_t product) \
{ \
return dev_findproduct(buf, len, tag ## _words, \
__arraycount(tag ## _words), tag ## _products, \
__arraycount(tag ## _products), vendor, product, \
tag ## _id2_format); \
} \
#ifdef _KERNEL
#define DEV_VERBOSE_KERNEL_DECLARE(tag) \
MODULE_HOOK(tag ## _findvendor_hook, const char *, \
(char *, size_t, uint32_t)); \
MODULE_HOOK(tag ## _findproduct_hook, const char *, \
(char *, size_t, uint32_t, uint32_t)); \
extern int tag ## verbose_loaded;
#define DEV_VERBOSE_MODULE_DEFINE(tag, deps) \
DEV_VERBOSE_COMMON_DEFINE(tag) \
DEV_VERBOSE_KERNEL_DECLARE(tag) \
\
static int \
tag ## verbose_modcmd(modcmd_t cmd, void *arg) \
{ \
\
switch (cmd) { \
case MODULE_CMD_INIT: \
MODULE_HOOK_SET(tag ## _findvendor_hook, \
tag ## _findvendor_real); \
MODULE_HOOK_SET(tag ## _findproduct_hook, \
tag ## _findproduct_real); \
tag ## verbose_loaded = 1; \
return 0; \
case MODULE_CMD_FINI: \
tag ## verbose_loaded = 0; \
MODULE_HOOK_UNSET(tag ## _findproduct_hook); \
MODULE_HOOK_UNSET(tag ## _findvendor_hook); \
return 0; \
default: \
return ENOTTY; \
} \
} \
MODULE(MODULE_CLASS_DRIVER, tag ## verbose, deps)
#endif /* KERNEL */
#define DEV_VERBOSE_DECLARE(tag) \
extern const char * tag ## _findvendor(char *, size_t, uint32_t); \
extern const char * tag ## _findproduct(char *, size_t, uint32_t, uint32_t)
#if defined(_KERNEL)
#define DEV_VERBOSE_DEFINE(tag) \
DEV_VERBOSE_KERNEL_DECLARE(tag) \
struct tag ## _findvendor_hook_t tag ## _findvendor_hook; \
struct tag ## _findproduct_hook_t tag ## _findproduct_hook; \
int tag ## verbose_loaded = 0; \
\
static void \
tag ## _load_verbose(void) \
{ \
\
if (tag ## verbose_loaded == 0) \
module_autoload(# tag "verbose", MODULE_CLASS_DRIVER); \
} \
\
const char * \
tag ## _findvendor(char *buf, size_t len, uint32_t vendor) \
{ \
const char *retval = NULL; \
\
tag ## _load_verbose(); \
MODULE_HOOK_CALL(tag ## _findvendor_hook, (buf, len, vendor), \
(snprintf(buf, len, tag ## _id1_format, vendor), NULL), \
retval); \
return retval; \
} \
\
const char * \
tag ## _findproduct(char *buf, size_t len, uint32_t vendor, \
uint32_t product) \
{ \
const char *retval = NULL; \
\
tag ## _load_verbose(); \
MODULE_HOOK_CALL(tag ## _findproduct_hook, \
(buf, len, vendor, product), \
(snprintf(buf, len, tag ## _id2_format, product), NULL), \
retval); \
return retval; \
} \
#else /* _KERNEL */
#define DEV_VERBOSE_DEFINE(tag) \
DEV_VERBOSE_COMMON_DEFINE(tag) \
const char *tag ## _findvendor(char *buf, size_t len, uint32_t vendor) \
{ \
\
return tag ## _findvendor_real(buf, len, vendor); \
} \
\
const char *tag ## _findproduct(char *buf, size_t len, uint32_t vendor, \
uint32_t product) \
{ \
\
return tag ## _findproduct_real(buf, len, vendor, product); \
}
#endif /* _KERNEL */
#endif /* _DEV_DEV_VERBOSE_H_ */