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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
32 #include <sys/condvar.h>
34 #include <sys/fcntl.h>
35 #include <sys/kernel.h>
36 #include <sys/sysctl.h>
41 #include <contrib/dev/acpica/acpi.h>
42 #include <dev/acpica/acpivar.h>
43 #include <dev/acpica/acpiio.h>
46 * APM driver emulation
49 #include <sys/selinfo.h>
51 #include <machine/apm_bios.h>
52 #include <machine/pc/bios.h>
54 #include <i386/bios/apm.h>
56 SYSCTL_DECL(_debug_acpi);
58 uint32_t acpi_resume_beep;
59 TUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep);
60 SYSCTL_UINT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep,
61 0, "Beep the PC speaker when resuming");
62 uint32_t acpi_reset_video;
63 TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
65 static int intr_model = ACPI_INTR_PIC;
66 static int apm_active;
68 static d_open_t apmopen;
69 static d_close_t apmclose;
70 static d_write_t apmwrite;
71 static d_ioctl_t apmioctl;
72 static d_poll_t apmpoll;
74 static struct cdevsw apm_cdevsw = {
75 .d_version = D_VERSION,
85 acpi_capm_convert_battstate(struct acpi_battinfo *battp)
91 if (battp->state & ACPI_BATT_STAT_DISCHARG) {
97 if (battp->state & ACPI_BATT_STAT_CRITICAL)
98 state = 2; /* critical */
99 if (battp->state & ACPI_BATT_STAT_CHARGING)
100 state = 3; /* charging */
102 /* If still unknown, determine it based on the battery capacity. */
103 if (state == APM_UNKNOWN) {
104 if (battp->cap >= 50)
105 state = 0; /* high */
114 acpi_capm_convert_battflags(struct acpi_battinfo *battp)
120 if (battp->cap >= 50)
121 flags |= APM_BATT_HIGH;
123 if (battp->state & ACPI_BATT_STAT_CRITICAL)
124 flags |= APM_BATT_CRITICAL;
126 flags |= APM_BATT_LOW;
128 if (battp->state & ACPI_BATT_STAT_CHARGING)
129 flags |= APM_BATT_CHARGING;
130 if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
131 flags = APM_BATT_NOT_PRESENT;
137 acpi_capm_get_info(apm_info_t aip)
140 struct acpi_battinfo batt;
142 aip->ai_infoversion = 1;
145 aip->ai_status = apm_active;
146 aip->ai_capabilities= 0xff00; /* unknown */
148 if (acpi_acad_get_acline(&acline))
149 aip->ai_acline = APM_UNKNOWN; /* unknown */
151 aip->ai_acline = acline; /* on/off */
153 if (acpi_battery_get_battinfo(NULL, &batt) != 0) {
154 aip->ai_batt_stat = APM_UNKNOWN;
155 aip->ai_batt_life = APM_UNKNOWN;
156 aip->ai_batt_time = -1; /* unknown */
157 aip->ai_batteries = ~0U; /* unknown */
159 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
160 aip->ai_batt_life = batt.cap;
161 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
162 aip->ai_batteries = acpi_battery_get_units();
169 acpi_capm_get_pwstatus(apm_pwstatus_t app)
172 int acline, unit, error;
173 struct acpi_battinfo batt;
175 if (app->ap_device != PMDV_ALLDEV &&
176 (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
179 if (app->ap_device == PMDV_ALLDEV)
180 error = acpi_battery_get_battinfo(NULL, &batt);
182 unit = app->ap_device - PMDV_BATT0;
183 dev = devclass_get_device(devclass_find("battery"), unit);
185 error = acpi_battery_get_battinfo(dev, &batt);
192 app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
193 app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
194 app->ap_batt_life = batt.cap;
195 app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
197 if (acpi_acad_get_acline(&acline))
198 app->ap_acline = APM_UNKNOWN;
200 app->ap_acline = acline; /* on/off */
206 apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td)
212 apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
218 apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td)
221 struct acpi_softc *acpi_sc;
222 struct apm_info info;
225 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
229 if ((flag & FWRITE) == 0)
232 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
237 if ((flag & FWRITE) == 0)
240 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
244 case APMIO_GETINFO_OLD:
245 if (acpi_capm_get_info(&info))
247 aiop = (apm_info_old_t)addr;
248 aiop->ai_major = info.ai_major;
249 aiop->ai_minor = info.ai_minor;
250 aiop->ai_acline = info.ai_acline;
251 aiop->ai_batt_stat = info.ai_batt_stat;
252 aiop->ai_batt_life = info.ai_batt_life;
253 aiop->ai_status = info.ai_status;
256 if (acpi_capm_get_info((apm_info_t)addr))
259 case APMIO_GETPWSTATUS:
260 if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr))
264 if ((flag & FWRITE) == 0)
269 if ((flag & FWRITE) == 0)
275 case APMIO_NOTHALTCPU:
278 if ((flag & FWRITE) == 0)
282 if ((flag & FWRITE) == 0)
284 bzero(addr, sizeof(struct apm_bios_arg));
295 apmwrite(struct cdev *dev, struct uio *uio, int ioflag)
297 return (uio->uio_resid);
301 apmpoll(struct cdev *dev, int events, d_thread_t *td)
307 acpi_capm_init(struct acpi_softc *sc)
309 make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm");
313 acpi_machdep_init(device_t dev)
315 struct acpi_softc *sc;
317 sc = devclass_get_softc(devclass_find("acpi"), 0);
320 acpi_install_wakeup_handler(sc);
322 if (intr_model == ACPI_INTR_PIC)
323 BUS_CONFIG_INTR(dev, AcpiGbl_FADT.SciInterrupt,
324 INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
326 acpi_SetIntrModel(intr_model);
328 SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
329 SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
330 "reset_video", CTLFLAG_RW, &acpi_reset_video, 0,
331 "Call the VESA reset BIOS vector on the resume path");
337 acpi_SetDefaultIntrModel(int model)
343 /* Check BIOS date. If 1998 or older, disable ACPI. */
345 acpi_machdep_quirks(int *quirks)
350 /* BIOS address 0xffff5 contains the date in the format mm/dd/yy. */
351 va = pmap_mapbios(0xffff0, 16);
352 sscanf(va + 11, "%2d", &year);
353 pmap_unmapbios((vm_offset_t)va, 16);
356 * Date must be >= 1/1/1999 or we don't trust ACPI. Note that this
357 * check must be changed by my 114th birthday.
359 if (year > 90 && year < 99)
360 *quirks = ACPI_Q_BROKEN;
368 __asm __volatile("sti; hlt");