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      1 /* $NetBSD: sysmon_envsys_util.c,v 1.7 2020/06/11 02:39:31 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2007 Juan Romero Pardines.
      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 AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: sysmon_envsys_util.c,v 1.7 2020/06/11 02:39:31 thorpej Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/types.h>
     33 #include <sys/conf.h>
     34 #include <sys/kernel.h>
     35 
     36 #include <dev/sysmon/sysmonvar.h>
     37 #include <dev/sysmon/sysmon_envsysvar.h>
     38 #include <prop/proplib.h>
     39 
     40 /*
     41  * Functions to create objects in a dictionary if they do not exist, or
     42  * for updating its value if it doesn't match with the value in dictionary.
     43  */
     44 
     45 int
     46 sme_sensor_upbool(prop_dictionary_t dict, const char *key, bool val)
     47 {
     48 	prop_object_t obj;
     49 
     50 	KASSERT(dict != NULL);
     51 
     52 	obj = prop_dictionary_get(dict, key);
     53 	if (obj) {
     54 		if (prop_bool_true(obj) != val) {
     55 			if (!prop_dictionary_set_bool(dict, key, val)) {
     56 				DPRINTF(("%s: (up) set_bool %s:%d\n",
     57 				    __func__, key, val));
     58 				return EINVAL;
     59 			}
     60 		}
     61 	} else {
     62 		if (!prop_dictionary_set_bool(dict, key, val)) {
     63 			DPRINTF(("%s: (set) set_bool %s:%d\n",
     64 			    __func__, key, val));
     65 			return EINVAL;
     66 		}
     67 	}
     68 
     69 	return 0;
     70 }
     71 
     72 int
     73 sme_sensor_upint32(prop_dictionary_t dict, const char *key, int32_t val)
     74 {
     75 	prop_object_t obj;
     76 
     77 	KASSERT(dict != NULL);
     78 
     79 	obj = prop_dictionary_get(dict, key);
     80 	if (obj) {
     81 		if (!prop_number_equals_signed(obj, val)) {
     82 			if (!prop_dictionary_set_int32(dict, key, val)) {
     83 				DPRINTF(("%s: (up) set_int32 %s:%d\n",
     84 				    __func__, key, val));
     85 				return EINVAL;
     86 			}
     87 		}
     88 	} else {
     89 		if (!prop_dictionary_set_int32(dict, key, val)) {
     90 			DPRINTF(("%s: (set) set_int32 %s:%d\n",
     91 			    __func__, key, val));
     92 			return EINVAL;
     93 		}
     94 	}
     95 
     96 	return 0;
     97 }
     98 
     99 int
    100 sme_sensor_upuint32(prop_dictionary_t dict, const char *key, uint32_t val)
    101 {
    102 	prop_object_t obj;
    103 
    104 	KASSERT(dict != NULL);
    105 
    106 	obj = prop_dictionary_get(dict, key);
    107 	if (obj) {
    108 		if (!prop_number_equals_unsigned(obj, val)) {
    109 			if (!prop_dictionary_set_uint32(dict, key, val)) {
    110 				DPRINTF(("%s: (up) set_uint32 %s:%d\n",
    111 				    __func__, key, val));
    112 				return EINVAL;
    113 			}
    114 		}
    115 	} else {
    116 		if (!prop_dictionary_set_uint32(dict, key, val)) {
    117 			DPRINTF(("%s: (set) set_uint32 %s:%d\n",
    118 			    __func__, key, val));
    119 			return EINVAL;
    120 		}
    121 	}
    122 
    123 	return 0;
    124 }
    125 
    126 int
    127 sme_sensor_upstring(prop_dictionary_t dict, const char *key, const char *str)
    128 {
    129 	prop_object_t obj;
    130 
    131 	KASSERT(dict != NULL);
    132 
    133 	obj = prop_dictionary_get(dict, key);
    134 	if (obj == NULL) {
    135 		if (!prop_dictionary_set_string(dict, key, str)) {
    136 			DPRINTF(("%s: (up) set_cstring %s:%s\n",
    137 			    __func__, key, str));
    138 			return EINVAL;
    139 		}
    140 	} else {
    141 		if (!prop_string_equals_string(obj, str)) {
    142 			if (!prop_dictionary_set_string(dict, key, str)) {
    143 				DPRINTF(("%s: (set) set_cstring %s:%s\n",
    144 				    __func__, key, str));
    145 				return EINVAL;
    146 			}
    147 		}
    148 	}
    149 
    150 	return 0;
    151 }
    152