Lines Matching +full:bat +full:- +full:present
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* -*- linux-c -*-
4 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
16 * (Thanks to Ulrich Windl <Ulrich.Windl@rz.uni-regensburg.de>)
40 * 0.9: only call bios if bios is present, Linux 1.3.72
43 * 1.1: support user-space standby and suspend, power off after system
46 * is only incorrect by 30-60mS (vs. 1S previously) (Gabor J. Toth
48 * screen-blanking and gpm (Stephen Rothwell); Linux 1.99.4
63 * <echter@informatik.uni-rostock.de>
109 * <Walter.Hofmann@physik.stud.uni-erlangen.de>).
120 * Remove smp-power-off. SMP users must now specify
121 * "apm=power-off" on the kernel command line. Suggested
130 * Fix the Thinkpad (again) :-( (CONFIG_APM_IGNORE_MULTIPLE_SUSPENDS
139 * <tmh@magenta-logic.com> and <zlatko@iskon.hr>) modified by sfr.
145 * Changed to use the sysrq-register hack for registering the
156 * calling it - instead idle. (Alan Cox <alan@lxorguk.ukuu.org.uk>)
180 * Intel Order Number 241704-001. Microsoft Part Number 781-110-X01.
234 #include <asm/nospec-branch.h>
245 * [no-]allow[-_]ints allow interrupts during BIOS calls
246 * [no-]broken[-_]psr BIOS has a broken GetPowerStatus call
247 * [no-]realmode[-_]power[-_]off switch to real mode before
249 * [no-]debug log some debugging messages
250 * [no-]power[-_]off power off on shutdown
251 * [no-]smp Use apm even on an SMP box
252 * bounce[-_]interval=<n> number of ticks to ignore suspend
254 * idle[-_]threshold=<n> System idle percentage above which to
257 * idle[-_]period=<n> Period (in 1/100s of a second) over
272 * ?: AcerNote-950: oops on reading /proc/apm - workaround is a WIP
296 * Define to re-initialize the interrupt 0 timer to 100 Hz after a suspend.
324 * The per-file APM data
397 static int apm_disabled = -1;
424 (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1);
477 { APM_NOT_PRESENT, "No APM present" }
482 * apm_error - display an APM error
513 * for the rest of the kernel. And it will be very obvious! :-) Doing
570 /* Error: -ENOMEM, or bits 8-15 of eax */
575 * __apm_bios_call - Make an APM BIOS 32bit call
583 * code is returned in AH (bits 8-15 of eax) and this function
584 * returns non-zero.
608 apm_bios_call_asm(call->func, call->ebx, call->ecx, in __apm_bios_call()
609 &call->eax, &call->ebx, &call->ecx, &call->edx, in __apm_bios_call()
610 &call->esi); in __apm_bios_call()
618 return call->eax & 0xff; in __apm_bios_call()
636 /* work_on_cpu can fail with -ENOMEM */ in on_cpu0()
638 call->err = ret; in on_cpu0()
640 call->err = (call->eax >> 8) & 0xff; in on_cpu0()
646 * apm_bios_call - Make an APM BIOS 32bit call (on CPU 0)
657 * __apm_bios_call_simple - Make an APM BIOS 32bit call (on CPU 0)
662 * (bits 8-15 of eax) and this function returns non-zero (it can
663 * also return -ENOMEM). This is used for simpler BIOS operations.
689 error = apm_bios_call_simple_asm(call->func, call->ebx, call->ecx, in __apm_bios_call_simple()
690 &call->eax); in __apm_bios_call_simple()
701 * apm_bios_call_simple - make a simple APM BIOS 32bit call
710 * and this function returns non-zero. This is used for simpler
731 * apm_driver_version - APM driver version
736 * probably present.
758 * apm_get_event - get an APM event from the BIOS
765 * poll until no more messages are present. However, this causes
792 * set_power_state - set the power management state
816 * set_system_power_state - set system wide power state
828 * apm_do_idle - perform power saving
831 * of the OS) idle. It returns -1 in the event that the BIOS refuses
861 return -1; in apm_do_idle()
868 * apm_do_busy - inform the BIOS the CPU is busy
887 * power management - we probably want
894 * apm_cpu_idle - cpu idling for APM capable Linux
910 unsigned int jiffies_since_last_check = jiffies - last_jiffies; in apm_cpu_idle()
920 idle_percentage = nsecs_to_jiffies(stime - last_stime); in apm_cpu_idle()
947 bucket--; in apm_cpu_idle()
960 jiffies_since_last_check = jiffies - last_jiffies; in apm_cpu_idle()
972 * apm_power_off - ask the BIOS to power off
995 * apm_enable_power_management - enable BIOS APM power management
1020 * apm_get_power_status - get current power state
1022 * @bat: battery info
1027 * source. The bat value returned give an estimate as a percentage
1033 static int apm_get_power_status(u_short *status, u_short *bat, u_short *life) in apm_get_power_status() argument
1049 *bat = call.ecx; in apm_get_power_status()
1060 u_short *bat, u_short *life, u_short *nbat)
1073 return apm_get_power_status(status, bat, life);
1080 *bat = ecx;
1088 * apm_engage_power_management - enable PM on a device
1119 * apm_console_blank - blank the display
1167 return as->event_head == as->event_tail; in queue_empty()
1172 if (++as->event_tail >= APM_MAX_EVENTS) in get_queued_event()
1173 as->event_tail = 0; in get_queued_event()
1174 return as->events[as->event_tail]; in get_queued_event()
1184 for (as = user_list; as != NULL; as = as->next) { in queue_event()
1185 if ((as == sender) || (!as->reader)) in queue_event()
1187 if (++as->event_head >= APM_MAX_EVENTS) in queue_event()
1188 as->event_head = 0; in queue_event()
1190 if (as->event_head == as->event_tail) { in queue_event()
1195 if (++as->event_tail >= APM_MAX_EVENTS) in queue_event()
1196 as->event_tail = 0; in queue_event()
1198 as->events[as->event_head] = event; in queue_event()
1199 if (!as->suser || !as->writer) in queue_event()
1204 as->suspends_pending++; in queue_event()
1210 as->standbys_pending++; in queue_event()
1262 err = (err == APM_SUCCESS) ? 0 : -EIO; in suspend()
1272 for (as = user_list; as != NULL; as = as->next) { in suspend()
1273 as->suspend_wait = 0; in suspend()
1274 as->suspend_result = err; in suspend()
1331 apm_event_name[event - 1]); in check_events()
1417 (pending_count-- <= 0)) { in apm_event_handler()
1456 if (as == NULL || as->magic != APM_BIOS_MAGIC) { in check_apm_user()
1469 as = fp->private_data; in do_read()
1471 return -EIO; in do_read()
1473 return -EINVAL; in do_read()
1474 if ((queue_empty(as)) && (fp->f_flags & O_NONBLOCK)) in do_read()
1475 return -EAGAIN; in do_read()
1483 return -EFAULT; in do_read()
1488 as->suspends_read++; in do_read()
1493 as->standbys_read++; in do_read()
1497 i -= sizeof(event); in do_read()
1500 return count - i; in do_read()
1502 return -ERESTARTSYS; in do_read()
1510 as = fp->private_data; in do_poll()
1524 as = filp->private_data; in do_ioctl()
1526 return -EIO; in do_ioctl()
1527 if (!as->suser || !as->writer) in do_ioctl()
1528 return -EPERM; in do_ioctl()
1532 if (as->standbys_read > 0) { in do_ioctl()
1533 as->standbys_read--; in do_ioctl()
1534 as->standbys_pending--; in do_ioctl()
1535 standbys_pending--; in do_ioctl()
1544 if (as->suspends_read > 0) { in do_ioctl()
1545 as->suspends_read--; in do_ioctl()
1546 as->suspends_pending--; in do_ioctl()
1547 suspends_pending--; in do_ioctl()
1554 as->suspend_wait = 1; in do_ioctl()
1557 as->suspend_wait == 0); in do_ioctl()
1558 ret = as->suspend_result; in do_ioctl()
1562 return -ENOTTY; in do_ioctl()
1571 as = filp->private_data; in do_release()
1574 filp->private_data = NULL; in do_release()
1575 if (as->standbys_pending > 0) { in do_release()
1576 standbys_pending -= as->standbys_pending; in do_release()
1580 if (as->suspends_pending > 0) { in do_release()
1581 suspends_pending -= as->suspends_pending; in do_release()
1587 user_list = as->next; in do_release()
1592 (as1 != NULL) && (as1->next != as); in do_release()
1593 as1 = as1->next) in do_release()
1598 as1->next = as->next; in do_release()
1611 return -ENOMEM; in do_open()
1613 as->magic = APM_BIOS_MAGIC; in do_open()
1614 as->event_tail = as->event_head = 0; in do_open()
1615 as->suspends_pending = as->standbys_pending = 0; in do_open()
1616 as->suspends_read = as->standbys_read = 0; in do_open()
1618 * XXX - this is a tiny bit broken, when we consider BSD in do_open()
1622 * privileged operation -- cevans in do_open()
1624 as->suser = capable(CAP_SYS_ADMIN); in do_open()
1625 as->writer = (filp->f_mode & FMODE_WRITE) == FMODE_WRITE; in do_open()
1626 as->reader = (filp->f_mode & FMODE_READ) == FMODE_READ; in do_open()
1628 as->next = user_list; in do_open()
1631 filp->private_data = as; in do_open()
1645 int percentage = -1; in proc_apm_show()
1646 int time_units = -1; in proc_apm_show()
1676 0x00: Off-line in proc_apm_show()
1677 0x01: On-line in proc_apm_show()
1685 0x04: Selected battery not present (BIOS >= 1.2 only) in proc_apm_show()
1695 0-100: valid in proc_apm_show()
1696 -1: Unknown in proc_apm_show()
1699 -1: Unknown in proc_apm_show()
1726 /* 2002/08/01 - WT in apm()
1728 * on SMP systems in case of "apm=power-off" mode. Seen on ASUS A7M266D. in apm()
1767 return -1; in apm()
1777 return -1; in apm()
1865 if ((strncmp(str, "bounce-interval=", 16) == 0) || in apm_setup()
1868 if ((strncmp(str, "idle-threshold=", 15) == 0) || in apm_setup()
1871 if ((strncmp(str, "idle-period=", 12) == 0) || in apm_setup()
1874 invert = (strncmp(str, "no-", 3) == 0) || in apm_setup()
1880 if ((strncmp(str, "power-off", 9) == 0) || in apm_setup()
1887 if ((strncmp(str, "allow-ints", 10) == 0) || in apm_setup()
1890 if ((strncmp(str, "broken-psr", 10) == 0) || in apm_setup()
1893 if ((strncmp(str, "realmode-power-off", 18) == 0) || in apm_setup()
1926 printk("%s\n", d->ident); in print_if_true()
1937 "workaround hopefully not needed.\n", d->ident); in broken_ps2_resume()
1947 "Using realmode poweroff only.\n", d->ident); in set_realmode_power_off()
1958 "Enabling interrupts during APM calls.\n", d->ident); in set_apm_ints()
1969 "Disabling APM.\n", d->ident); in apm_is_horked()
1979 "Disabling APM.\n", d->ident); in apm_is_horked_d850md()
1992 "Disabling APM idle calls.\n", d->ident); in apm_likes_to_melt()
2001 * [ Write BIOS Code ]<------
2003 * < Does it Compile >----N--
2005 * < Does it Boot Win98 >-N--
2035 KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
2076 DMI_MATCH(DMI_PRODUCT_NAME, "XPS-Z"),
2093 apm_is_horked, "ABIT KX7-333[R]",
2095 DMI_MATCH(DMI_BOARD_NAME, "VT8367-8233A (KX7-333[R])"), },
2103 apm_is_horked, "Fujitsu-Siemens",
2118 apm_is_horked, "Dell XPS-Z",
2121 DMI_MATCH(DMI_PRODUCT_NAME, "XPS-Z"), },
2124 apm_is_horked, "Sharp PC-PJ/AX",
2126 DMI_MATCH(DMI_PRODUCT_NAME, "PC-PJ/AX"),
2147 { /* Handle problems with APM on Sony Vaio PCG-N505X(DE) */
2153 { /* Handle problems with APM on Sony Vaio PCG-N505VX */
2159 { /* Handle problems with APM on Sony Vaio PCG-XG29 */
2165 { /* Handle problems with APM on Sony Vaio PCG-Z600NE */
2171 { /* Handle problems with APM on Sony Vaio PCG-Z600NE */
2177 { /* Handle problems with APM on Sony Vaio PCG-Z600LEK(DE) */
2183 { /* Handle problems with APM on Sony Vaio PCG-Z505LS */
2189 { /* Handle problems with APM on Sony Vaio PCG-Z505LS */
2195 { /* Handle problems with APM on Sony Vaio PCG-Z505LS (with updated BIOS) */
2201 { /* Handle problems with APM on Sony Vaio PCG-F104K */
2208 { /* Handle problems with APM on Sony Vaio PCG-C1VN/C1VE */
2214 { /* Handle problems with APM on Sony Vaio PCG-C1VE */
2220 { /* Handle problems with APM on Sony Vaio PCG-C1VE */
2262 return -ENODEV; in apm_init()
2272 return -ENODEV; in apm_init()
2282 if (apm_disabled != -1) in apm_init()
2311 return -ENODEV; in apm_init()
2314 pr_notice("disabled - APM is not SMP safe.\n"); in apm_init()
2316 return -ENODEV; in apm_init()
2321 return -ENODEV; in apm_init()
2353 pr_err("disabled - Unable to start kernel thread\n"); in apm_init()
2363 "apm: disabled - APM is not SMP safe (power off active).\n"); in apm_init()