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1 /*-
2  * Copyright (c) 2000 Munehiro Matsuda
3  * Copyright (c) 2000 Takanori Watanabe
4  * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
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 AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30
31 #include "opt_acpi.h"
32 #include <sys/param.h>
33 #include <sys/kernel.h>
34 #include <sys/bus.h>
35 #include <sys/ioccom.h>
36 #include <sys/conf.h>
37
38 #include <machine/bus.h>
39 #include <machine/resource.h>
40 #include <sys/rman.h>
41 #include <sys/malloc.h>
42
43 #include  "acpi.h"
44
45 #include <dev/acpica/acpivar.h>
46 #include <dev/acpica/acpiio.h>
47
48 MALLOC_DEFINE(M_ACPICMBAT, "acpicmbat", "ACPI control method battery data");
49
50 #define CMBAT_POLLRATE  (60 * hz)
51
52 /*
53  * Hooks for the ACPI CA debugging infrastructure
54  */
55 #define _COMPONENT      ACPI_BATTERY
56 MODULE_NAME("BATTERY")
57
58 #define ACPI_BATTERY_BST_CHANGE 0x80
59 #define ACPI_BATTERY_BIF_CHANGE 0x81
60
61 #define PKG_GETINT(res, tmp, idx, dest, label) do {                     \
62         tmp = &res->Package.Elements[idx];                              \
63         if (tmp == NULL) {                                              \
64                 ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),     \
65                     __func__ ": PKG_GETINT error, idx = %d\n.", idx);   \
66                 goto label;                                             \
67         }                                                               \
68         if (tmp->Type != ACPI_TYPE_INTEGER)                             \
69                 goto label;                                             \
70         dest = tmp->Integer.Value;                                      \
71 } while (0)
72
73 #define PKG_GETSTR(res, tmp, idx, dest, size, label) do {               \
74         size_t  length;                                                 \
75         length = size;                                                  \
76         tmp = &res->Package.Elements[idx];                              \
77         if (tmp == NULL) {                                              \
78                 ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),     \
79                     __func__ ": PKG_GETSTR error, idx = %d\n.", idx);   \
80                 goto label;                                             \
81         }                                                               \
82         bzero(dest, sizeof(dest));                                      \
83         switch (tmp->Type) {                                            \
84         case ACPI_TYPE_STRING:                                          \
85                 if (tmp->String.Length < length) {                      \
86                         length = tmp->String.Length;                    \
87                 }                                                       \
88                 strncpy(dest, tmp->String.Pointer, length);             \
89                 break;                                                  \
90         case ACPI_TYPE_BUFFER:                                          \
91                 if (tmp->Buffer.Length < length) {                      \
92                         length = tmp->Buffer.Length;                    \
93                 }                                                       \
94                 strncpy(dest, tmp->Buffer.Pointer, length);             \
95                 break;                                                  \
96         default:                                                        \
97                 goto label;                                             \
98         }                                                               \
99         dest[sizeof(dest)-1] = '\0';                                    \
100 } while (0)
101
102 struct acpi_cmbat_softc {
103         device_t        dev;
104
105         struct acpi_bif bif;
106         struct acpi_bst bst;
107         ACPI_BUFFER     bif_buffer;
108         ACPI_BUFFER     bst_buffer;
109         struct timespec bif_lastupdated;
110         struct timespec bst_lastupdated;
111         int             bif_updating;
112         int             bst_updating;
113
114         int             not_present;
115         int             cap;
116         int             min;
117         int             full_charge_time;
118
119         struct callout_handle cmbat_timeout;
120 };
121
122 static struct timespec   acpi_cmbat_info_lastupdated;
123
124 /* XXX: devclass_get_maxunit() don't give us the current allocated units... */
125 static int               acpi_cmbat_units = 0;
126
127 static void              acpi_cmbat_timeout(void *);
128 static int               acpi_cmbat_info_expired(struct timespec *);
129 static void              acpi_cmbat_info_updated(struct timespec *);
130 static void              acpi_cmbat_get_bst(void *);
131 static void              acpi_cmbat_get_bif(void *);
132 static void              acpi_cmbat_notify_handler(ACPI_HANDLE, UINT32, void *);
133 static int               acpi_cmbat_probe(device_t);
134 static int               acpi_cmbat_attach(device_t);
135 static int               acpi_cmbat_resume(device_t);
136 static int               acpi_cmbat_ioctl(u_long, caddr_t, void *);
137 static int               acpi_cmbat_get_total_battinfo(struct acpi_battinfo *);
138
139 /*
140  * Poll the battery info.
141  */
142 static void
143 acpi_cmbat_timeout(void *context)
144 {
145         device_t        dev;
146         struct acpi_cmbat_softc *sc;
147
148         dev = (device_t)context;
149         sc = device_get_softc(dev);
150
151         AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_get_bif, dev);
152         sc->cmbat_timeout = timeout(acpi_cmbat_timeout, dev, CMBAT_POLLRATE);
153 }
154
155 static __inline int
156 acpi_cmbat_info_expired(struct timespec *lastupdated)
157 {
158         struct timespec curtime;
159
160         if (lastupdated == NULL) {
161                 return (1);
162         }
163
164         if (!timespecisset(lastupdated)) {
165                 return (1);
166         }
167
168         getnanotime(&curtime);
169         timespecsub(&curtime, lastupdated);
170         return ((curtime.tv_sec < 0 || curtime.tv_sec > acpi_battery_get_info_expire()));
171 }
172
173
174 static __inline void
175 acpi_cmbat_info_updated(struct timespec *lastupdated)
176 {
177
178         if (lastupdated != NULL) {
179                 getnanotime(lastupdated);
180         }
181 }
182
183 static void
184 acpi_cmbat_get_bst(void *context)
185 {
186         device_t        dev;
187         struct acpi_cmbat_softc *sc;
188         ACPI_STATUS     as;
189         ACPI_OBJECT     *res, *tmp;
190         ACPI_HANDLE     h;
191
192         dev = context;
193         sc = device_get_softc(dev);
194         h = acpi_get_handle(dev);
195
196         if (!acpi_cmbat_info_expired(&sc->bst_lastupdated)) {
197                 return;
198         }
199
200         if (sc->bst_updating) {
201                 return;
202         }
203         sc->bst_updating = 1;
204
205         untimeout(acpi_cmbat_timeout, (caddr_t)dev, sc->cmbat_timeout);
206
207         if ((as = acpi_EvaluateIntoBuffer(h, "_BST", NULL, &sc->bst_buffer)) != AE_OK) {
208                 ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
209                     "error fetching current battery status -- %s\n",
210                     AcpiFormatException(as));
211                 goto end;
212         }
213
214         res = (ACPI_OBJECT *)sc->bst_buffer.Pointer;
215
216         if ((res->Type != ACPI_TYPE_PACKAGE) || (res->Package.Count != 4)) {
217                 ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
218                     "battery status corrupted\n");
219                 goto end;
220         }
221
222         PKG_GETINT(res, tmp, 0, sc->bst.state, end);
223         PKG_GETINT(res, tmp, 1, sc->bst.rate, end);
224         PKG_GETINT(res, tmp, 2, sc->bst.cap, end);
225         PKG_GETINT(res, tmp, 3, sc->bst.volt, end);
226         acpi_cmbat_info_updated(&sc->bst_lastupdated);
227 end:
228         sc->bst_updating = 0;
229         sc->cmbat_timeout = timeout(acpi_cmbat_timeout, dev, CMBAT_POLLRATE);
230 }
231
232 static void
233 acpi_cmbat_get_bif(void *context)
234 {
235         device_t        dev;
236         struct acpi_cmbat_softc *sc;
237         ACPI_STATUS     as;
238         ACPI_OBJECT     *res, *tmp;
239         ACPI_HANDLE     h;
240
241         dev = context;
242         sc = device_get_softc(dev);
243         h = acpi_get_handle(dev);
244
245         if (!acpi_cmbat_info_expired(&sc->bif_lastupdated)) {
246                 return;
247         }
248
249         if (sc->bif_updating) {
250                 return;
251         }
252         sc->bif_updating = 1;
253
254         untimeout(acpi_cmbat_timeout, (caddr_t)dev, sc->cmbat_timeout);
255
256         if ((as = acpi_EvaluateIntoBuffer(h, "_BIF", NULL, &sc->bif_buffer)) != AE_OK) {
257                 ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
258                     "error fetching current battery info -- %s\n",
259                     AcpiFormatException(as));
260                 goto end;
261         }
262
263         res = (ACPI_OBJECT *)sc->bif_buffer.Pointer;
264
265         if ((res->Type != ACPI_TYPE_PACKAGE) || (res->Package.Count != 13)) {
266                 ACPI_VPRINT(dev, acpi_device_get_parent_softc(dev),
267                     "battery info corrupted\n");
268                 goto end;
269         }
270
271         PKG_GETINT(res, tmp,  0, sc->bif.unit, end);
272         PKG_GETINT(res, tmp,  1, sc->bif.dcap, end);
273         PKG_GETINT(res, tmp,  2, sc->bif.lfcap, end);
274         PKG_GETINT(res, tmp,  3, sc->bif.btech, end);
275         PKG_GETINT(res, tmp,  4, sc->bif.dvol, end);
276         PKG_GETINT(res, tmp,  5, sc->bif.wcap, end);
277         PKG_GETINT(res, tmp,  6, sc->bif.lcap, end);
278         PKG_GETINT(res, tmp,  7, sc->bif.gra1, end);
279         PKG_GETINT(res, tmp,  8, sc->bif.gra2, end);
280         PKG_GETSTR(res, tmp,  9, sc->bif.model, ACPI_CMBAT_MAXSTRLEN, end);
281         PKG_GETSTR(res, tmp, 10, sc->bif.serial, ACPI_CMBAT_MAXSTRLEN, end);
282         PKG_GETSTR(res, tmp, 11, sc->bif.type, ACPI_CMBAT_MAXSTRLEN, end);
283         PKG_GETSTR(res, tmp, 12, sc->bif.oeminfo, ACPI_CMBAT_MAXSTRLEN, end);
284         acpi_cmbat_info_updated(&sc->bif_lastupdated);
285 end:
286         sc->bif_updating = 0;
287         sc->cmbat_timeout = timeout(acpi_cmbat_timeout, dev, CMBAT_POLLRATE);
288 }
289
290 static void
291 acpi_cmbat_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
292 {
293         device_t        dev;
294         struct acpi_cmbat_softc *sc;
295
296         dev = (device_t)context;
297         if ((sc = device_get_softc(dev)) == NULL) {
298                 return;
299         }
300
301         switch (notify) {
302         case ACPI_BATTERY_BST_CHANGE:
303                 timespecclear(&sc->bst_lastupdated);
304                 break;
305         case ACPI_BATTERY_BIF_CHANGE:
306                 timespecclear(&sc->bif_lastupdated);
307                 AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_get_bif, dev);
308                 break;
309         default:
310                 break;
311         }
312 }
313
314 static int
315 acpi_cmbat_probe(device_t dev)
316 {
317
318         if ((acpi_get_type(dev) == ACPI_TYPE_DEVICE) &&
319             !acpi_disabled("cmbat") &&
320             acpi_MatchHid(dev, "PNP0C0A")) {
321                 /*
322                  * Set device description.
323                  */
324                 device_set_desc(dev, "Control method Battery");
325                 return (0);
326         }
327         return (ENXIO);
328 }
329
330 static int
331 acpi_cmbat_attach(device_t dev)
332 {
333         int             error;
334         ACPI_HANDLE     handle;
335         struct acpi_cmbat_softc *sc;
336
337         if ((sc = device_get_softc(dev)) == NULL) {
338                 return (ENXIO);
339         }
340
341         handle = acpi_get_handle(dev);
342
343         AcpiInstallNotifyHandler(handle, ACPI_DEVICE_NOTIFY,
344                                  acpi_cmbat_notify_handler, dev);
345
346         bzero(&sc->bif_buffer, sizeof(sc->bif_buffer));
347         bzero(&sc->bst_buffer, sizeof(sc->bst_buffer));
348         sc->bif_updating = sc->bst_updating = 0;
349         sc->dev = dev;
350
351         timespecclear(&sc->bif_lastupdated);
352         timespecclear(&sc->bst_lastupdated);
353
354         if (acpi_cmbat_units == 0) {
355                 if ((error = acpi_register_ioctl(ACPIIO_CMBAT_GET_BIF,
356                                 acpi_cmbat_ioctl, NULL)) != 0) {
357                         return (error);
358                 }
359                 if ((error = acpi_register_ioctl(ACPIIO_CMBAT_GET_BST,
360                                 acpi_cmbat_ioctl, NULL)) != 0) {
361                         return (error);
362                 }
363         }
364
365         if ((error = acpi_battery_register(ACPI_BATT_TYPE_CMBAT,
366                         acpi_cmbat_units)) != 0) {
367                 return (error);
368         }
369
370         acpi_cmbat_units++;
371         timespecclear(&acpi_cmbat_info_lastupdated);
372
373         AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_get_bif, dev);
374         return (0);
375 }
376
377 static int
378 acpi_cmbat_resume(device_t dev)
379 {
380
381         AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpi_cmbat_get_bif, dev);
382         return (0);
383 }
384
385 static device_method_t acpi_cmbat_methods[] = {
386         /* Device interface */
387         DEVMETHOD(device_probe,         acpi_cmbat_probe),
388         DEVMETHOD(device_attach,        acpi_cmbat_attach),
389         DEVMETHOD(device_resume,        acpi_cmbat_resume),
390
391         {0, 0}
392 };
393
394 static driver_t acpi_cmbat_driver = {
395         "acpi_cmbat",
396         acpi_cmbat_methods,
397         sizeof(struct acpi_cmbat_softc),
398 };
399
400 static devclass_t acpi_cmbat_devclass;
401 DRIVER_MODULE(acpi_cmbat, acpi, acpi_cmbat_driver, acpi_cmbat_devclass, 0, 0);
402
403 static int
404 acpi_cmbat_ioctl(u_long cmd, caddr_t addr, void *arg)
405 {
406         device_t        dev;
407         union acpi_battery_ioctl_arg *ioctl_arg;
408         struct acpi_cmbat_softc *sc;
409         struct acpi_bif *bifp;
410         struct acpi_bst *bstp;
411
412         ioctl_arg = (union acpi_battery_ioctl_arg *)addr;
413         if ((dev = devclass_get_device(acpi_cmbat_devclass,
414                         ioctl_arg->unit)) == NULL) {
415                 return (ENXIO);
416         }
417
418         if ((sc = device_get_softc(dev)) == NULL) {
419                 return (ENXIO);
420         }
421
422         switch (cmd) {
423         case ACPIIO_CMBAT_GET_BIF:
424                 acpi_cmbat_get_bif(dev);
425                 bifp = &ioctl_arg->bif;
426                 bifp->unit = sc->bif.unit;
427                 bifp->dcap = sc->bif.dcap;
428                 bifp->lfcap = sc->bif.lfcap;
429                 bifp->btech = sc->bif.btech;
430                 bifp->dvol = sc->bif.dvol;
431                 bifp->wcap = sc->bif.wcap;
432                 bifp->lcap = sc->bif.lcap;
433                 bifp->gra1 = sc->bif.gra1;
434                 bifp->gra2 = sc->bif.gra2;
435                 strncpy(bifp->model, sc->bif.model, sizeof(sc->bif.model));
436                 strncpy(bifp->serial, sc->bif.serial, sizeof(sc->bif.serial));
437                 strncpy(bifp->type, sc->bif.type, sizeof(sc->bif.type));
438                 strncpy(bifp->oeminfo, sc->bif.oeminfo, sizeof(sc->bif.oeminfo));
439                 break;
440
441         case ACPIIO_CMBAT_GET_BST:
442                 acpi_cmbat_get_bst(dev);
443                 bstp = &ioctl_arg->bst;
444                 bstp->state = sc->bst.state;
445                 bstp->rate = sc->bst.rate;
446                 bstp->cap = sc->bst.cap;
447                 bstp->volt = sc->bst.volt;
448                 break;
449         }
450
451         return (0);
452 }
453
454 static int
455 acpi_cmbat_get_total_battinfo(struct acpi_battinfo *battinfo)
456 {
457         int             i;
458         int             error;
459         int             batt_stat;
460         int             valid_rate, valid_units;
461         int             cap, min;
462         int             total_cap, total_min, total_full;
463         device_t        dev;
464         struct acpi_cmbat_softc *sc;
465         static int      bat_units = 0;
466         static struct acpi_cmbat_softc **bat = NULL;
467
468         cap = min = -1;
469         batt_stat = ACPI_BATT_STAT_NOT_PRESENT;
470         error = 0;
471
472         /* Allocate array of softc pointers */
473         if (bat_units != acpi_cmbat_units) {
474                 if (bat != NULL) {
475                         free(bat, M_ACPICMBAT);
476                         bat = NULL;
477                 }
478                 bat_units = 0;
479         }
480         if (bat == NULL) {
481                 bat_units = acpi_cmbat_units;
482                 bat = malloc(sizeof(struct acpi_cmbat_softc *) * bat_units,
483                              M_ACPICMBAT, M_NOWAIT);
484                 if (bat == NULL) {
485                         error = ENOMEM;
486                         goto out;
487                 }
488
489                 /* Collect softc pointers */
490                 for (i = 0; i < acpi_cmbat_units; i++) {
491                         if ((dev = devclass_get_device(acpi_cmbat_devclass, i)) == NULL) {
492                                 error = ENXIO;
493                                 goto out;
494                         }
495
496                         if ((sc = device_get_softc(dev)) == NULL) {
497                                 error = ENXIO;
498                                 goto out;
499                         }
500
501                         bat[i] = sc;
502                 }
503         }
504
505         /* Get battery status, valid rate and valid units */
506         batt_stat = valid_rate = valid_units = 0;
507         for (i = 0; i < acpi_cmbat_units; i++) {
508                 bat[i]->not_present = 0;
509                 acpi_cmbat_get_bst(bat[i]->dev);
510
511                 /* If battey not installed, we get strange values */
512                 if (bat[i]->bst.state >= ACPI_BATT_STAT_MAX ||
513                     bat[i]->bst.cap == 0xffffffff ||
514                     bat[i]->bst.volt == 0xffffffff ||
515                     bat[i]->bif.lfcap == 0) {
516                         bat[i]->not_present = 1;
517                         continue;
518                 }
519
520                 valid_units++;
521
522                 bat[i]->cap = 100 * bat[i]->bst.cap / bat[i]->bif.lfcap;
523
524                 batt_stat |= bat[i]->bst.state;
525
526                 if (bat[i]->bst.rate > 0) {
527                         /*
528                          * XXX Hack to calculate total battery time.
529                          * Systems with 2 or more battries, they may get used
530                          * one by one, thus bst.rate is set only to the one
531                          * in use. For remaining batteries bst.rate = 0, which
532                          * makes it impossible to calculate remaining time.
533                          * Some other systems may need sum of bst.rate in
534                          * dis-charging state.
535                          * There for we sum up the bst.rate that is valid
536                          * (in dis-charging state), and use the sum to
537                          * calcutate remaining batteries' time.
538                          */
539                         if (bat[i]->bst.state & ACPI_BATT_STAT_DISCHARG) {
540                                 valid_rate += bat[i]->bst.rate;
541                         }
542                 }
543         }
544
545         /* Calculate total battery capacity and time */
546         total_cap = total_min = total_full = 0;
547         for (i = 0; i < acpi_cmbat_units; i++) {
548                 if (bat[i]->not_present) {
549                         continue;
550                 }
551
552                 if (valid_rate > 0) {
553                         /* Use the sum of bst.rate */
554                         bat[i]->min = 60 * bat[i]->bst.cap / valid_rate;
555                 } else if (bat[i]->full_charge_time > 0) {
556                         bat[i]->min = (bat[i]->full_charge_time * bat[i]->cap) / 100;
557                 } else {
558                         /* Couldn't find valid rate and full battery time */
559                         bat[i]->min = 0;
560                 }
561                 total_min += bat[i]->min;
562                 total_cap += bat[i]->cap;
563                 total_full += bat[i]->full_charge_time;
564         }
565
566         /* Battery life */
567         if (valid_units == 0) {
568                 cap = -1;
569                 batt_stat = ACPI_BATT_STAT_NOT_PRESENT;
570         } else {
571                 cap = total_cap / valid_units;
572         }
573
574         /* Battery time */
575         if (valid_units == 0) {
576                 min = -1;
577         } else if (valid_rate == 0 || (batt_stat & ACPI_BATT_STAT_CHARGING)) {
578                 if (total_full == 0) {
579                         min = -1;
580                 } else {
581                         min = (total_full * cap) / 100;
582                 }
583         } else {
584                 min = total_min;
585         }
586
587         acpi_cmbat_info_updated(&acpi_cmbat_info_lastupdated);
588 out:
589         battinfo->cap = cap;
590         battinfo->min = min;
591         battinfo->state = batt_stat;
592
593         return (error);
594 }
595
596 /*
597  * Public interfaces.
598  */
599
600 int
601 acpi_cmbat_get_battinfo(int unit, struct acpi_battinfo *battinfo)
602 {
603         int             error;
604         device_t        dev;
605         struct acpi_cmbat_softc *sc;
606
607         if (unit == -1) {
608                 return (acpi_cmbat_get_total_battinfo(battinfo));
609         }
610
611         if (acpi_cmbat_info_expired(&acpi_cmbat_info_lastupdated)) {
612                 error = acpi_cmbat_get_total_battinfo(battinfo);
613                 if (error) {
614                         goto out;
615                 }
616         }
617
618         error = 0;
619         if (unit >= acpi_cmbat_units) {
620                 error = ENXIO;
621                 goto out;
622         }
623
624         if ((dev = devclass_get_device(acpi_cmbat_devclass, unit)) == NULL) {
625                 error = ENXIO;
626                 goto out;
627         }
628
629         if ((sc = device_get_softc(dev)) == NULL) {
630                 error = ENXIO;
631                 goto out;
632         }
633
634         if (sc->not_present) {
635                 battinfo->cap = -1;
636                 battinfo->min = -1;
637                 battinfo->state = ACPI_BATT_STAT_NOT_PRESENT;
638         } else {
639                 battinfo->cap = sc->cap;
640                 battinfo->min = sc->min;
641                 battinfo->state = sc->bst.state;
642         }
643 out:
644         return (error);
645 }
646