apm.c revision 14609 
1/*
2 * LP (Laptop Package)
3 *
4 * Copyright (C) 1994 by HOSOKAWA Tatasumi <hosokawa@mt.cs.keio.ac.jp>
5 *
6 * This software may be used, modified, copied, distributed, and sold,
7 * in both source and binary form provided that the above copyright and
8 * these terms are retained. Under no circumstances is the author
9 * responsible for the proper functioning of this software, nor does
10 * the author assume any responsibility for damages incurred with its
11 * use.
12 *
13 * Sep., 1994	Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
14 */
15
16#include <stdio.h>
17#include <string.h>
18#include <sys/file.h>
19#include <sys/ioctl.h>
20#include <machine/apm_bios.h>
21
22#define APMDEV	"/dev/apm0"
23
24int main_argc;
25char **main_argv;
26
27void apm_suspend(int fd)
28{
29	if (ioctl(fd, APMIO_SUSPEND, NULL) == -1) {
30		fprintf(stderr, "%s: ioctl APMIO_SUSPEND failed.\n", main_argv[0]);
31		exit(1);
32	}
33}
34
35void apm_getinfo(int fd, apm_info_t aip)
36{
37	if (ioctl(fd, APMIO_GETINFO, aip) == -1) {
38		fprintf(stderr, "%s: ioctl APMIO_GETINFO failed.\n", main_argv[0]);
39		exit(1);
40	}
41}
42
43void print_all_info(apm_info_t aip)
44{
45	printf("APM version: %d.%d\n", aip->ai_major, aip->ai_minor);
46	printf("APM Managment: %s\n", (aip->ai_status ? "Enabled": "Disabled"));
47	printf("AC Line status: ");
48	if (aip->ai_acline == 255) {
49		printf("unknown");
50	}
51	else if (aip->ai_acline > 1) {
52		printf("invalid value (0x%x)", aip->ai_acline);
53	}
54	else {
55		static char messages[][10] = {"off-line", "on-line"};
56		printf("%s", messages[aip->ai_acline]);
57	}
58	printf("\n");
59	printf("Battery status: ");
60	if (aip->ai_batt_stat == 255) {
61		printf("unknown");
62	}
63	else if (aip->ai_batt_stat > 3) {
64		printf("invalid value (0x%x)", aip->ai_batt_stat);
65	}
66	else {
67		static char messages[][10] = {"high", "low", "critical", "charging"};
68		printf("%s", messages[aip->ai_batt_stat]);
69	}
70	printf("\n");
71	printf("Remaining battery life: ");
72	if (aip->ai_batt_life == 255) {
73		printf("unknown");
74	}
75	else if (aip->ai_batt_life <= 100) {
76		printf("%d%%", aip->ai_batt_life);
77	}
78	else {
79		printf("invalid value (0x%x)", aip->ai_batt_life);
80	}
81	printf("\n");
82}
83
84int main(int argc, char *argv[])
85{
86	int i, j, fd;
87	int sleep = 0, all_info = 1, apm_status = 0, batt_status = 0, batt_life = 0, ac_status = 0;
88	char *cmdname;
89
90	main_argc = argc;
91	main_argv = argv;
92	if ((cmdname = strrchr(argv[0], '/')) != NULL) {
93		cmdname++;
94	}
95	else {
96		cmdname = argv[0];
97	}
98
99	if (strcmp(cmdname, "zzz") == 0) {
100		sleep = 1;
101		all_info = 0;
102		goto finish_option;
103	}
104
105	for (i = argc - 1; i >= 1; i--) {
106		if (argv[i][0] != '-') {
107			fprintf(stderr, "%s: Unknown option '%s'.\n", argv[0], argv[i]);
108			exit(1);
109		}
110		for (j = 1; argv[i][j]; j++) {
111			switch (argv[i][j]) {
112			case 'z':
113				sleep = 1;
114				all_info = 0;
115				break;
116			case 'b':
117				batt_status = 1;
118				all_info = 0;
119				break;
120			case 'a':
121				ac_status = 1;
122				all_info = 0;
123				break;
124			case 'l':
125				batt_life = 1;
126				all_info = 0;
127			case 's':
128				apm_status = 1;
129				all_info = 0;
130				break;
131			default:
132				fprintf(stderr, "%s Unknown option '%s'.\n", argv[0], argv[i]);
133				exit(1);
134			}
135		}
136	}
137finish_option:
138	fd = open(APMDEV, O_RDWR);
139	if (fd == -1) {
140		fprintf(stderr, "%s: Can't open %s.\n", argv[0], APMDEV);
141		return 1;
142	}
143	if (sleep) {
144		apm_suspend(fd);
145	} else {
146		struct apm_info	info;
147
148		apm_getinfo(fd, &info);
149		if (all_info) {
150			print_all_info(&info);
151		}
152		if (batt_status) {
153			printf("%d\n", info.ai_batt_stat);
154		}
155		if (batt_life) {
156			printf("%d\n", info.ai_batt_life);
157		}
158		if (ac_status) {
159			printf("%d\n", info.ai_acline);
160		}
161		if (apm_status) {
162			printf("%d\n", info.ai_status);
163		}
164	}
165	close(fd);
166	return 0;
167}
168