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ofw_sysctl.c revision 1.2.2.2 
      1 /*	$NetBSD: ofw_sysctl.c,v 1.2.2.2 2020/04/08 14:08:08 martin Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2020 Michael Lorenz
      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 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: ofw_sysctl.c,v 1.2.2.2 2020/04/08 14:08:08 martin Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/systm.h>
     33 #include <sys/types.h>
     34 
     35 #include <sys/sysctl.h>
     36 #include <dev/ofw/openfirm.h>
     37 
     38 char firmwarestring[64] = "unknown";
     39 char firmwareversion[64] = "unknown";
     40 
     41 SYSCTL_SETUP(sysctl_hw_misc_setup, "sysctl hw.ofw subtree misc setup")
     42 {
     43 	const struct sysctlnode *me;
     44 	int openprom;
     45 
     46 	openprom = OF_finddevice("/openprom");
     47 	if (openprom == 0 || openprom == -1) return;
     48 
     49 	sysctl_createv(clog, 0, NULL, &me,
     50 		CTLFLAG_PERMANENT,
     51 		CTLTYPE_NODE, "ofw",
     52 		SYSCTL_DESCR("OpenFirmware information"),
     53 		NULL, 0, NULL, 0,
     54 		CTL_HW, CTL_CREATE, CTL_EOL);
     55 
     56 	memset(firmwarestring, 0, 64);
     57 	if (OF_getprop(openprom, "model", firmwarestring, 63) > 0) {
     58 
     59 		aprint_debug("firmware: %s\n", firmwarestring);
     60 		sysctl_createv(clog, 0, NULL, NULL,
     61 			CTLFLAG_PERMANENT,
     62 			CTLTYPE_STRING, "model",
     63 			SYSCTL_DESCR("firmware type"),
     64 			NULL, 0, firmwarestring, 0,
     65 			CTL_HW, me->sysctl_num, CTL_CREATE, CTL_EOL);
     66 	}
     67 
     68 	memset(firmwareversion, 0, 64);
     69 	if (OF_getprop(openprom, "version", firmwareversion, 63) > 0) {
     70 
     71 		aprint_debug("version: %s\n", firmwareversion);
     72 		sysctl_createv(clog, 0, NULL, NULL,
     73 			CTLFLAG_PERMANENT,
     74 			CTLTYPE_STRING, "version",
     75 			SYSCTL_DESCR("firmware version"),
     76 			NULL, 0, firmwareversion, 0,
     77 			CTL_HW, me->sysctl_num, CTL_CREATE, CTL_EOL);
     78 	}
     79 }
     80