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      1 /*	$NetBSD: db_autoconf.c,v 1.3 2022/03/28 12:38:58 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2016 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: db_autoconf.c,v 1.3 2022/03/28 12:38:58 riastradh Exp $");
     31 
     32 #ifndef _KERNEL
     33 #include <stdbool.h>
     34 #endif
     35 
     36 #include <sys/param.h>
     37 #include <sys/device.h>
     38 #include <sys/device_impl.h>
     39 
     40 #include <ddb/ddb.h>
     41 
     42 static const char *classnames[] = {
     43 	"dull", "cpu", "disk", "ifnet", "tape", "tty",
     44 	"audiodev", "displaydev", "bus", "virtual"
     45 };
     46 
     47 struct device *
     48 db_device_first(void)
     49 {
     50 
     51 	return db_read_ptr("alldevs");
     52 }
     53 
     54 struct device *
     55 db_device_next(struct device *dv)
     56 {
     57 
     58 	db_read_bytes((db_addr_t)&dv->dv_list.tqe_next, sizeof(dv),
     59 	    (char *)&dv);
     60 	return dv;
     61 }
     62 
     63 void
     64 db_show_all_devices(db_expr_t addr, bool haddr, db_expr_t count,
     65 		  const char *modif)
     66 {
     67 	struct device buf;
     68 	struct device *dv;
     69 	const char *cl;
     70 
     71 	db_printf("%-16s %10s %4s %18s %18s\n",
     72 		"NAME","CLASS","UNIT","DEVICE_T","PRIVATE");
     73 
     74 	for (dv = db_device_first(); dv != NULL; dv = db_device_next(dv)) {
     75 		db_read_bytes((db_addr_t)dv, sizeof(buf), (char *)&buf);
     76 
     77 		unsigned i = buf.dv_class;
     78 
     79 		if (i >= __arraycount(classnames))
     80 			cl = "????";
     81 		else
     82 			cl = classnames[i];
     83 
     84 		db_printf("%-16.16s", buf.dv_xname);
     85 		db_printf(" %10s", cl);
     86 		db_printf(" %4u", buf.dv_unit);
     87 		db_printf(" %18" PRIxPTR, (uintptr_t)dv);
     88 		db_printf(" %18" PRIxPTR, (uintptr_t)buf.dv_private);
     89 		db_printf("\n");
     90 	}
     91 }
     92