1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 *  (C) 2016 SUSE Software Solutions GmbH
4 *           Thomas Renninger <trenn@suse.de>
5 */
6
7#include <unistd.h>
8#include <stdio.h>
9#include <errno.h>
10#include <stdlib.h>
11#include <stdint.h>
12#include <string.h>
13
14#include <getopt.h>
15
16#include "powercap.h"
17#include "helpers/helpers.h"
18
19int powercap_show_all;
20
21static struct option info_opts[] = {
22	{ "all",		no_argument,		 NULL,	 'a'},
23	{ },
24};
25
26static int powercap_print_one_zone(struct powercap_zone *zone)
27{
28	int mode, i, ret = 0;
29	char pr_prefix[1024] = "";
30
31	for (i = 0; i < zone->tree_depth && i < POWERCAP_MAX_TREE_DEPTH; i++)
32		strcat(pr_prefix, "\t");
33
34	printf("%sZone: %s", pr_prefix, zone->name);
35	ret = powercap_zone_get_enabled(zone, &mode);
36	if (ret < 0)
37		return ret;
38	printf(" (%s)\n", mode ? "enabled" : "disabled");
39
40	if (zone->has_power_uw)
41		printf(_("%sPower can be monitored in micro Jules\n"),
42		       pr_prefix);
43
44	if (zone->has_energy_uj)
45		printf(_("%sPower can be monitored in micro Watts\n"),
46		       pr_prefix);
47
48	printf("\n");
49
50	if (ret != 0)
51		return ret;
52	return ret;
53}
54
55static int powercap_show(void)
56{
57	struct powercap_zone *root_zone;
58	char line[MAX_LINE_LEN] = "";
59	int ret, val;
60
61	ret = powercap_get_driver(line, MAX_LINE_LEN);
62	if (ret < 0) {
63		printf(_("No powercapping driver loaded\n"));
64		return ret;
65	}
66
67	printf("Driver: %s\n", line);
68	ret = powercap_get_enabled(&val);
69	if (ret < 0)
70		return ret;
71	if (!val) {
72		printf(_("Powercapping is disabled\n"));
73		return -1;
74	}
75
76	printf(_("Powercap domain hierarchy:\n\n"));
77	root_zone = powercap_init_zones();
78
79	if (root_zone == NULL) {
80		printf(_("No powercap info found\n"));
81		return 1;
82	}
83
84	powercap_walk_zones(root_zone, powercap_print_one_zone);
85
86	return 0;
87}
88
89int cmd_cap_set(int argc, char **argv)
90{
91	return 0;
92};
93int cmd_cap_info(int argc, char **argv)
94{
95	int ret = 0, cont = 1;
96
97	do {
98		ret = getopt_long(argc, argv, "a", info_opts, NULL);
99		switch (ret) {
100		case '?':
101			cont = 0;
102			break;
103		case -1:
104			cont = 0;
105			break;
106		case 'a':
107			powercap_show_all = 1;
108			break;
109		default:
110			fprintf(stderr, _("invalid or unknown argument\n"));
111			return EXIT_FAILURE;
112		}
113	} while (cont);
114
115	powercap_show();
116	return 0;
117}
118