2 * Copyright (c) 2001 Mitsuru IWASAKI
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/i386/acpica/acpi_machdep.c,v 1.20 2004/05/05 19:51:15 njl Exp $
29 #include <sys/param.h>
32 #include <sys/device.h>
33 #include <sys/fcntl.h>
34 #include <sys/kernel.h>
35 #include <sys/sysctl.h>
39 #include <dev/acpica5/acpivar.h>
40 #include <dev/acpica5/acpiio.h>
42 static device_t acpi_dev;
45 * APM driver emulation
48 #include <sys/event.h>
50 #include <machine/apm_bios.h>
51 #include <machine/pc/bios.h>
52 #include <machine_base/apm/apm.h>
53 #include <machine_base/apic/ioapic.h>
54 #include <machine/smp.h>
56 uint32_t acpi_reset_video = 1;
57 TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
60 * -1 == unset. Use acpi_GetDefaultIntrModel()
62 #ifdef SMP /* APIC-IO */
63 static int intr_model = -1;
65 static int intr_model = ACPI_INTR_PIC;
68 static struct apm_softc apm_softc;
70 static d_open_t apmopen;
71 static d_close_t apmclose;
72 static d_write_t apmwrite;
73 static d_ioctl_t apmioctl;
74 static d_kqfilter_t apmkqfilter;
76 static struct dev_ops apm_ops = {
82 .d_kqfilter = apmkqfilter
86 acpi_capm_convert_battstate(struct acpi_battinfo *battp)
90 state = 0xff; /* XXX unknown */
92 if (battp->state & ACPI_BATT_STAT_DISCHARG) {
98 if (battp->state & ACPI_BATT_STAT_CRITICAL)
99 state = 2; /* critical */
100 if (battp->state & ACPI_BATT_STAT_CHARGING)
101 state = 3; /* charging */
103 /* If still unknown, determine it based on the battery capacity. */
105 if (battp->cap >= 50)
106 state = 0; /* high */
115 acpi_capm_convert_battflags(struct acpi_battinfo *battp)
121 if (battp->cap >= 50)
122 flags |= APM_BATT_HIGH;
124 if (battp->state & ACPI_BATT_STAT_CRITICAL)
125 flags |= APM_BATT_CRITICAL;
127 flags |= APM_BATT_LOW;
129 if (battp->state & ACPI_BATT_STAT_CHARGING)
130 flags |= APM_BATT_CHARGING;
131 if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
132 flags = APM_BATT_NOT_PRESENT;
138 acpi_capm_get_info(apm_info_t aip)
141 struct acpi_battinfo batt;
143 aip->ai_infoversion = 1;
146 aip->ai_status = apm_softc.active;
147 aip->ai_capabilities= 0xff00; /* XXX unknown */
149 if (acpi_acad_get_acline(&acline))
150 aip->ai_acline = 0xff; /* unknown */
152 aip->ai_acline = acline; /* on/off */
154 if (acpi_battery_get_battinfo(NULL, &batt)) {
155 aip->ai_batt_stat = 0xff; /* unknown */
156 aip->ai_batt_life = 0xff; /* unknown */
157 aip->ai_batt_time = -1; /* unknown */
158 aip->ai_batteries = 0;
160 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
161 aip->ai_batt_life = batt.cap;
162 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
163 aip->ai_batteries = acpi_battery_get_units();
170 acpi_capm_get_pwstatus(apm_pwstatus_t app)
173 int acline, unit, error;
174 struct acpi_battinfo batt;
176 if (app->ap_device != PMDV_ALLDEV &&
177 (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
180 if (app->ap_device == PMDV_ALLDEV)
181 error = acpi_battery_get_battinfo(NULL, &batt);
183 unit = app->ap_device - PMDV_BATT0;
184 dev = devclass_get_device(devclass_find("battery"), unit);
186 error = acpi_battery_get_battinfo(dev, &batt);
193 app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
194 app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
195 app->ap_batt_life = batt.cap;
196 app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
198 if (acpi_acad_get_acline(&acline))
199 app->ap_acline = 0xff; /* unknown */
201 app->ap_acline = acline; /* on/off */
207 apmopen(struct dev_open_args *ap)
213 apmclose(struct dev_close_args *ap)
219 apmioctl(struct dev_ioctl_args *ap)
222 struct acpi_softc *acpi_sc;
223 struct apm_info info;
226 acpi_sc = device_get_softc(acpi_dev);
230 if ((ap->a_fflag & FWRITE) == 0)
232 if (apm_softc.active)
233 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
238 if ((ap->a_fflag & FWRITE) == 0)
240 if (apm_softc.active)
241 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
245 case APMIO_GETINFO_OLD:
246 if (acpi_capm_get_info(&info))
248 aiop = (apm_info_old_t)ap->a_data;
249 aiop->ai_major = info.ai_major;
250 aiop->ai_minor = info.ai_minor;
251 aiop->ai_acline = info.ai_acline;
252 aiop->ai_batt_stat = info.ai_batt_stat;
253 aiop->ai_batt_life = info.ai_batt_life;
254 aiop->ai_status = info.ai_status;
257 if (acpi_capm_get_info((apm_info_t)ap->a_data))
260 case APMIO_GETPWSTATUS:
261 if (acpi_capm_get_pwstatus((apm_pwstatus_t)ap->a_data))
265 if ((ap->a_fflag & FWRITE) == 0)
267 apm_softc.active = 1;
270 if ((ap->a_fflag & FWRITE) == 0)
272 apm_softc.active = 0;
276 case APMIO_NOTHALTCPU:
279 if ((ap->a_fflag & FWRITE) == 0)
283 if ((ap->a_fflag & FWRITE) == 0)
285 bzero(ap->a_data, sizeof(struct apm_bios_arg));
296 apmwrite(struct dev_write_args *ap)
298 return (ap->a_uio->uio_resid);
301 static void apmfilter_detach(struct knote *);
302 static int apmfilter(struct knote *, long);
304 static struct filterops apmfilterops =
305 { FILTEROP_ISFD, NULL, apmfilter_detach, apmfilter };
308 apmkqfilter(struct dev_kqfilter_args *ap)
310 struct knote *kn = ap->a_kn;
312 kn->kn_fop = &apmfilterops;
318 apmfilter_detach(struct knote *kn) {}
321 apmfilter(struct knote *kn, long hint)
327 acpi_capm_init(struct acpi_softc *sc)
329 make_dev(&apm_ops, 0, 0, 5, 0664, "apm");
330 make_dev(&apm_ops, 8, 0, 5, 0664, "apm");
331 kprintf("Warning: ACPI is disabling APM's device. You can't run both\n");
335 * Lazy initialize intr_model
338 acpi_GetDefaultIntrModel(void)
340 if (intr_model == -1) {
343 intr_model = ACPI_INTR_APIC;
345 intr_model = ACPI_INTR_PIC;
347 intr_model = ACPI_INTR_PIC;
354 acpi_machdep_init(device_t dev)
356 struct acpi_softc *sc;
359 sc = device_get_softc(acpi_dev);
362 * XXX: Prevent the PnP BIOS code from interfering with
363 * our own scan of ISA devices.
369 acpi_install_wakeup_handler(sc);
371 if (acpi_GetDefaultIntrModel() != ACPI_INTR_PIC)
372 acpi_SetIntrModel(acpi_GetDefaultIntrModel());
374 SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
375 SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
376 "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0,
377 "Call the VESA reset BIOS vector on the resume path");
383 acpi_SetDefaultIntrModel(int model)