summaryrefslogtreecommitdiffstats
path: root/usr.sbin/apm/apm.c
blob: 81efc272faf685da03052ddabb7e37e05e35b939 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
/*
 * apm / zzz	APM BIOS utility for FreeBSD
 *
 * Copyright (C) 1994-1996 by Tatsumi Hosokawa <hosokawa@jp.FreeBSD.org>
 *
 * This software may be used, modified, copied, distributed, and sold,
 * in both source and binary form provided that the above copyright and
 * these terms are retained. Under no circumstances is the author
 * responsible for the proper functioning of this software, nor does
 * the author assume any responsibility for damages incurred with its
 * use.
 *
 * Sep., 1994	Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
 */

#ifndef lint
static const char rcsid[] =
	"$Id: apm.c,v 1.17 1999/07/30 16:15:11 msmith Exp $";
#endif /* not lint */

#include <sys/file.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/sysctl.h>

#include <machine/apm_bios.h>

#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#include <time.h>
#include <unistd.h>

#define APMDEV	"/dev/apm"

#define xh(a)	(((a) & 0xff00) >> 8)
#define xl(a)	((a) & 0xff)
#define APMERR(a) xh(a)

int cmos_wall = 0;	/* True when wall time is in cmos clock, else UTC */

void
usage()
{
	fprintf(stderr, "%s\n%s\n",
		"usage: apm [-ablstzZ] [-d 1|0] [-r delta]",
		"       zzz");
	exit(1);
}

int
int2bcd(int i)
{
	int retval = 0;
	int base = 0;

	if (i >= 10000)
		return -1;
    
	while (i) {
		retval |= (i % 10) << base;
		i /= 10;
		base += 4;
	}
	return retval;
}

int
bcd2int(int bcd)
{
	int retval = 0;
	int place = 1;

	if (bcd > 0x9999)
		return -1;

	while (bcd) {
		retval += (bcd & 0xf) * place;
		bcd >>= 4;
		place *= 10;
	}
	return retval;
}

void 
apm_suspend(int fd)
{
	if (ioctl(fd, APMIO_SUSPEND, NULL) == -1)
		err(1, NULL);
}

void 
apm_standby(int fd)
{
	if (ioctl(fd, APMIO_STANDBY, NULL) == -1)
		err(1, NULL);
}

void 
apm_getinfo(int fd, apm_info_t aip)
{
	if (ioctl(fd, APMIO_GETINFO, aip) == -1)
		err(1, NULL);
}

void 
print_all_info(int fd, apm_info_t aip)
{
	struct apm_bios_arg args;
	int apmerr;

	printf("APM version: %d.%d\n", aip->ai_major, aip->ai_minor);
	printf("APM Managment: %s\n", (aip->ai_status ? "Enabled" : "Disabled"));
	printf("AC Line status: ");
	if (aip->ai_acline == 255)
		printf("unknown");
	else if (aip->ai_acline > 1)
		printf("invalid value (0x%x)", aip->ai_acline);
	else {
		char messages[][10] = {"off-line", "on-line"};
		printf("%s", messages[aip->ai_acline]);
	}
	printf("\n");
	printf("Battery status: ");
	if (aip->ai_batt_stat == 255)
		printf("unknown");
	else if (aip->ai_batt_stat > 3)
			printf("invalid value (0x%x)", aip->ai_batt_stat);
	else {
		char messages[][10] = {"high", "low", "critical", "charging"};
		printf("%s", messages[aip->ai_batt_stat]);
	}
	printf("\n");
	printf("Remaining battery life: ");
	if (aip->ai_batt_life == 255)
		printf("unknown");
	else if (aip->ai_batt_life <= 100)
		printf("%d%%", aip->ai_batt_life);
	else
		printf("invalid value (0x%x)", aip->ai_batt_life);
	printf("\n");
	printf("Remaining battery time: ");
	if (aip->ai_batt_time == -1)
		printf("unknown");
	else {
		int t, h, m, s;

		t = aip->ai_batt_time;
		s = t % 60;
		t /= 60;
		m = t % 60;
		t /= 60;
		h = t;
		printf("%2d:%02d:%02d", h, m, s);
	}
	printf("\n");
	if (aip->ai_infoversion >= 1) {
		printf("Number of batteries: ");
		if (aip->ai_batteries == (u_int) -1)
			printf("unknown\n");
		else
			printf("%d\n", aip->ai_batteries);
	}

	/*
	 * try to get the suspend timer
	 */
	bzero(&args, sizeof(args));
	args.eax = (APM_BIOS) << 8 | APM_RESUMETIMER;
	args.ebx = PMDV_APMBIOS;
	args.ecx = 0x0001;
	if (ioctl(fd, APMIO_BIOS, &args)) {
		err(1,"Get resume timer");
	} else {
		apmerr = APMERR(args.eax);
		 if (apmerr == 0x0d || apmerr == 0x86)
			printf("Resume timer: disabled\n");
		else if (apmerr)
			fprintf(stderr, 
			    "Failed to get the resume timer: APM error0x%x\n",
			    apmerr);
		else {
			/*
			 * OK.  We have the time (all bcd).
			 * CH - seconds
			 * DH - hours
			 * DL - minutes
			 * xh(SI) - month (1-12)
			 * xl(SI) - day of month (1-31)
			 * DI - year
			 */
			struct tm tm;
			char buf[1024];
			time_t t;

			tm.tm_sec = bcd2int(xh(args.ecx));
			tm.tm_min = bcd2int(xl(args.edx));
			tm.tm_hour = bcd2int(xh(args.edx));
			tm.tm_mday = bcd2int(xl(args.esi));
			tm.tm_mon = bcd2int(xh(args.esi)) - 1;
			tm.tm_year = bcd2int(args.edi) - 1900;
			if (cmos_wall)
				t = mktime(&tm);
			else
				t = timegm(&tm);
			tm = *localtime(&t);
			strftime(buf, sizeof(buf), "%c", &tm);
			printf("Resume timer: %s\n", buf);
		}
	}

	/*
	 * Get the ring indicator resume state
	 */
	bzero(&args, sizeof(args));
	args.eax  = (APM_BIOS) << 8 | APM_RESUMEONRING;
	args.ebx = PMDV_APMBIOS;
	args.ecx = 0x0002;
	if (ioctl(fd, APMIO_BIOS, &args) == 0) {
		printf("Resume on ring indicator: %sabled\n",
			args.ecx ? "en" : "dis");
	}
	if (aip->ai_infoversion >= 1) {
		printf("APM Capacities:\n", aip->ai_capabilities);
		if (aip->ai_capabilities == 0xff00)
			printf("\tunknown\n");
		if (aip->ai_capabilities & 0x01)
			printf("\tglobal standby state\n");
		if (aip->ai_capabilities & 0x02)
			printf("\tglobal suspend state\n");
		if (aip->ai_capabilities & 0x04)
			printf("\tresume timer from standby\n");
		if (aip->ai_capabilities & 0x08)
			printf("\tresume timer from suspend\n");
		if (aip->ai_capabilities & 0x10)
			printf("\tRI resume from standby\n");
		if (aip->ai_capabilities & 0x20)
			printf("\tRI resume from suspend\n");
		if (aip->ai_capabilities & 0x40)
			printf("\tPCMCIA RI resume from standby\n");
		if (aip->ai_capabilities & 0x80)
			printf("\tPCMCIA RI resume from suspend\n");
	}

}

/*
 * currently, it can turn off the display, but the display never comes
 * back until the machine suspend/resumes :-).
 */
void 
apm_display(int fd, int newstate)
{
	if (ioctl(fd, APMIO_DISPLAY, &newstate) == -1)
		err(1, NULL);
}


void
apm_set_timer(int fd, int delta)
{
	time_t tmr;
	struct tm *tm;
	struct apm_bios_arg args;

	tmr = time(NULL) + delta;
	if (cmos_wall)
		tm = localtime(&tmr);
	else
		tm = gmtime(&tmr);
	bzero(&args, sizeof(args));
	args.eax = (APM_BIOS) << 8 | APM_RESUMETIMER;
	args.ebx = PMDV_APMBIOS;
	if (delta > 0) {
		args.ecx = (int2bcd(tm->tm_sec) << 8) | 0x02;
		args.edx = (int2bcd(tm->tm_hour) << 8) | int2bcd(tm->tm_min);
		args.esi = (int2bcd(tm->tm_mon + 1) << 8) | int2bcd(tm->tm_mday);
		args.edi = int2bcd(tm->tm_year + 1900);
	} else {
		args.ecx = 0x0000;
	}
	if (ioctl(fd, APMIO_BIOS, &args)) {
		err(1,"Set resume timer");
	}
}

int 
main(int argc, char *argv[])
{
	int	c, fd;
	int     sleep = 0, all_info = 1, apm_status = 0, batt_status = 0;
	int     display = 0, batt_life = 0, ac_status = 0, standby = 0;
	int	batt_time = 0, delta = 0;
	char	*cmdname;
	size_t	cmos_wall_len = sizeof(cmos_wall);

	if (sysctlbyname("machdep.wall_cmos_clock", &cmos_wall, &cmos_wall_len,
	    NULL, 0) == -1)
		err(1, "sysctlbyname(machdep.wall_cmos_clock)");
	if ((cmdname = strrchr(argv[0], '/')) != NULL)
		cmdname++;
	else
		cmdname = argv[0];

	if (strcmp(cmdname, "zzz") == 0) {
		sleep = 1;
		all_info = 0;
		goto finish_option;
	}
	while ((c = getopt(argc, argv, "ablRr:stzd:Z")) != -1) {
		switch (c) {
		case 'a':
			ac_status = 1;
			all_info = 0;
			break;
		case 'b':
			batt_status = 1;
			all_info = 0;
			break;
		case 'd':
			display = *optarg - '0';
			if (display < 0 || display > 1) {
				warnx("argument of option '-%c' is invalid", c);
				usage();
			}
			display++;
			all_info = 0;
			break;
		case 'l':
			batt_life = 1;
			all_info = 0;
			break;
		case 'R':
			delta = -1;
			break;
		case 'r':
			delta = atoi(optarg);
			break;
		case 's':
			apm_status = 1;
			all_info = 0;
			break;
		case 't':
			batt_time = 1;
			all_info = 0;
			break;
		case 'z':
			sleep = 1;
			all_info = 0;
			break;
		case 'Z':
			standby = 1;
			all_info = 0;
			break;
		case '?':
		default:
			usage();
		}
		argc -= optind;
		argv += optind;
	}
finish_option:
	fd = open(APMDEV, O_RDWR);
	if (fd == -1) {
		warn("can't open %s", APMDEV);
		return 1;
	}
	if (delta)
		apm_set_timer(fd, delta);
	if (sleep)
		apm_suspend(fd);
	else if (standby)
		apm_standby(fd);
	else if (delta == 0) {
		struct apm_info info;

		apm_getinfo(fd, &info);
		if (all_info)
			print_all_info(fd, &info);
		if (ac_status)
			printf("%d\n", info.ai_acline);
		if (batt_status)
			printf("%d\n", info.ai_batt_stat);
		if (batt_life)
			printf("%d\n", info.ai_batt_life);
		if (apm_status)
			printf("%d\n", info.ai_status);
		if (batt_time)
			printf("%d\n", info.ai_batt_time);
		if (display)
			apm_display(fd, display - 1);
	}
	close(fd);
	return 0;
}
OpenPOWER on IntegriCloud