4387bb6b8b4f9dc65938cb8b0d6985a23bcbf1c0
[dragonfly.git] / sys / platform / pc32 / acpica5 / acpi_machdep.c
1 /*-
2  * Copyright (c) 2001 Mitsuru IWASAKI
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
13  *
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
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/i386/acpica/acpi_machdep.c,v 1.20 2004/05/05 19:51:15 njl Exp $
27  * $DragonFly: src/sys/platform/pc32/acpica5/acpi_machdep.c,v 1.14 2008/09/29 06:59:45 hasso Exp $
28  */
29
30 #include <sys/param.h>
31 #include <sys/bus.h>
32 #include <sys/conf.h>
33 #include <sys/device.h>
34 #include <sys/fcntl.h>
35 #include <sys/kernel.h>
36 #include <sys/sysctl.h>
37 #include <sys/uio.h>
38
39 #include "acpi.h"
40 #include <dev/acpica5/acpivar.h>
41 #include <dev/acpica5/acpiio.h>
42
43 static device_t acpi_dev;
44
45 /*
46  * APM driver emulation 
47  */
48
49 #include <sys/selinfo.h>
50 #include <sys/event.h>
51
52 #include <machine/apm_bios.h>
53 #include <machine/pc/bios.h>
54 #include <machine_base/apm/apm.h>
55
56 uint32_t acpi_reset_video = 1;
57 TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
58
59 #ifdef APIC_IO
60 static int intr_model = ACPI_INTR_APIC;
61 #else
62 static int intr_model = ACPI_INTR_PIC;
63 #endif
64 static struct apm_softc apm_softc;
65
66 static d_open_t apmopen;
67 static d_close_t apmclose;
68 static d_write_t apmwrite;
69 static d_ioctl_t apmioctl;
70 static d_poll_t apmpoll;
71 static d_kqfilter_t apmkqfilter;
72
73 #define CDEV_MAJOR 39
74 static struct dev_ops apm_ops = {
75         { "apm", CDEV_MAJOR, D_KQFILTER },
76         .d_open = apmopen,
77         .d_close = apmclose,
78         .d_write = apmwrite,
79         .d_ioctl = apmioctl,
80         .d_poll = apmpoll,
81         .d_kqfilter = apmkqfilter
82 };
83
84 static int
85 acpi_capm_convert_battstate(struct  acpi_battinfo *battp)
86 {
87         int     state;
88
89         state = 0xff;   /* XXX unknown */
90
91         if (battp->state & ACPI_BATT_STAT_DISCHARG) {
92                 if (battp->cap >= 50)
93                         state = 0;      /* high */
94                 else
95                         state = 1;      /* low */
96         }
97         if (battp->state & ACPI_BATT_STAT_CRITICAL)
98                 state = 2;              /* critical */
99         if (battp->state & ACPI_BATT_STAT_CHARGING)
100                 state = 3;              /* charging */
101
102         /* If still unknown, determine it based on the battery capacity. */
103         if (state == 0xff) {
104                 if (battp->cap >= 50)
105                         state = 0;      /* high */
106                 else
107                         state = 1;      /* low */
108         }
109
110         return (state);
111 }
112
113 static int
114 acpi_capm_convert_battflags(struct  acpi_battinfo *battp)
115 {
116         int     flags;
117
118         flags = 0;
119
120         if (battp->cap >= 50)
121                 flags |= APM_BATT_HIGH;
122         else {
123                 if (battp->state & ACPI_BATT_STAT_CRITICAL)
124                         flags |= APM_BATT_CRITICAL;
125                 else
126                         flags |= APM_BATT_LOW;
127         }
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;
132
133         return (flags);
134 }
135
136 static int
137 acpi_capm_get_info(apm_info_t aip)
138 {
139         int     acline;
140         struct  acpi_battinfo batt;
141
142         aip->ai_infoversion = 1;
143         aip->ai_major       = 1;
144         aip->ai_minor       = 2;
145         aip->ai_status      = apm_softc.active;
146         aip->ai_capabilities= 0xff00;   /* XXX unknown */
147
148         if (acpi_acad_get_acline(&acline))
149                 aip->ai_acline = 0xff;          /* unknown */
150         else
151                 aip->ai_acline = acline;        /* on/off */
152
153         if (acpi_battery_get_battinfo(NULL, &batt)) {
154                 aip->ai_batt_stat = 0xff;       /* unknown */
155                 aip->ai_batt_life = 0xff;       /* unknown */
156                 aip->ai_batt_time = -1;         /* unknown */
157                 aip->ai_batteries = 0;
158         } else {
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();
163         }
164
165         return (0);
166 }
167
168 static int
169 acpi_capm_get_pwstatus(apm_pwstatus_t app)
170 {
171         device_t dev;
172         int     acline, unit, error;
173         struct  acpi_battinfo batt;
174
175         if (app->ap_device != PMDV_ALLDEV &&
176             (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
177                 return (1);
178
179         if (app->ap_device == PMDV_ALLDEV)
180                 error = acpi_battery_get_battinfo(NULL, &batt);
181         else {
182                 unit = app->ap_device - PMDV_BATT0;
183                 dev = devclass_get_device(devclass_find("battery"), unit);
184                 if (dev != NULL)
185                         error = acpi_battery_get_battinfo(dev, &batt);
186                 else
187                         error = ENXIO;
188         }
189         if (error)
190                 return (1);
191
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;
196
197         if (acpi_acad_get_acline(&acline))
198                 app->ap_acline = 0xff;          /* unknown */
199         else
200                 app->ap_acline = acline;        /* on/off */
201
202         return (0);
203 }
204
205 static int
206 apmopen(struct dev_open_args *ap)
207 {
208         return (0);
209 }
210
211 static int
212 apmclose(struct dev_close_args *ap)
213 {
214         return (0);
215 }
216
217 static int
218 apmioctl(struct dev_ioctl_args *ap)
219 {
220         int     error = 0;
221         struct  acpi_softc *acpi_sc;
222         struct apm_info info;
223         apm_info_old_t aiop;
224
225         acpi_sc = device_get_softc(acpi_dev);
226
227         switch (ap->a_cmd) {
228         case APMIO_SUSPEND:
229                 if ((ap->a_fflag & FWRITE) == 0)
230                         return (EPERM);
231                 if (apm_softc.active)
232                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
233                 else
234                         error = EINVAL;
235                 break;
236         case APMIO_STANDBY:
237                 if ((ap->a_fflag & FWRITE) == 0)
238                         return (EPERM);
239                 if (apm_softc.active)
240                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
241                 else
242                         error = EINVAL;
243                 break;
244         case APMIO_GETINFO_OLD:
245                 if (acpi_capm_get_info(&info))
246                         error = ENXIO;
247                 aiop = (apm_info_old_t)ap->a_data;
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;
254                 break;
255         case APMIO_GETINFO:
256                 if (acpi_capm_get_info((apm_info_t)ap->a_data))
257                         error = ENXIO;
258                 break;
259         case APMIO_GETPWSTATUS:
260                 if (acpi_capm_get_pwstatus((apm_pwstatus_t)ap->a_data))
261                         error = ENXIO;
262                 break;
263         case APMIO_ENABLE:
264                 if ((ap->a_fflag & FWRITE) == 0)
265                         return (EPERM);
266                 apm_softc.active = 1;
267                 break;
268         case APMIO_DISABLE:
269                 if ((ap->a_fflag & FWRITE) == 0)
270                         return (EPERM);
271                 apm_softc.active = 0;
272                 break;
273         case APMIO_HALTCPU:
274                 break;
275         case APMIO_NOTHALTCPU:
276                 break;
277         case APMIO_DISPLAY:
278                 if ((ap->a_fflag & FWRITE) == 0)
279                         return (EPERM);
280                 break;
281         case APMIO_BIOS:
282                 if ((ap->a_fflag & FWRITE) == 0)
283                         return (EPERM);
284                 bzero(ap->a_data, sizeof(struct apm_bios_arg));
285                 break;
286         default:
287                 error = EINVAL;
288                 break;
289         }
290
291         return (error);
292 }
293
294 static int
295 apmwrite(struct dev_write_args *ap)
296 {
297         return (ap->a_uio->uio_resid);
298 }
299
300 static int
301 apmpoll(struct dev_poll_args *ap)
302 {
303         ap->a_events = 0;
304         return (0);
305 }
306
307 static void apmfilter_detach(struct knote *);
308 static int apmfilter(struct knote *, long);
309
310 static struct filterops apmfilterops =
311         { 1, NULL, apmfilter_detach, apmfilter };
312
313 static int
314 apmkqfilter(struct dev_kqfilter_args *ap)
315 {
316         struct knote *kn = ap->a_kn;
317
318         kn->kn_fop = &apmfilterops;
319         ap->a_result = 0;
320         return (0);
321 }
322
323 static void
324 apmfilter_detach(struct knote *kn) {}
325
326 static int
327 apmfilter(struct knote *kn, long hint)
328 {
329         return (0);
330 }
331
332 static void
333 acpi_capm_init(struct acpi_softc *sc)
334 {
335         make_dev(&apm_ops, 0, 0, 5, 0664, "apm");
336         make_dev(&apm_ops, 8, 0, 5, 0664, "apm");
337         kprintf("Warning: ACPI is disabling APM's device.  You can't run both\n");
338 }
339
340 int
341 acpi_machdep_init(device_t dev)
342 {
343         struct  acpi_softc *sc;
344
345         acpi_dev = dev;
346         sc = device_get_softc(acpi_dev);
347
348         /*
349          * XXX: Prevent the PnP BIOS code from interfering with
350          * our own scan of ISA devices.
351          */
352         PnPBIOStable = NULL;
353
354         acpi_capm_init(sc);
355
356         acpi_install_wakeup_handler(sc);
357
358         if (intr_model == ACPI_INTR_PIC)
359                 BUS_CONFIG_INTR(dev, dev, AcpiGbl_FADT.SciInterrupt,
360                     INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
361         else
362                 acpi_SetIntrModel(intr_model);
363
364         SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
365             SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
366             "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0,
367             "Call the VESA reset BIOS vector on the resume path");
368
369         return (0);
370 }
371
372 void
373 acpi_SetDefaultIntrModel(int model)
374 {
375
376         intr_model = model;
377 }