bf2ef13c210dd531211d9235a2364eb8d7698989
[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/event.h>
50
51 #include <machine/apm_bios.h>
52 #include <machine/pc/bios.h>
53 #include <machine_base/apm/apm.h>
54
55 uint32_t acpi_reset_video = 1;
56 TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
57
58 #ifdef APIC_IO
59 static int intr_model = ACPI_INTR_APIC;
60 #else
61 static int intr_model = ACPI_INTR_PIC;
62 #endif
63 static struct apm_softc apm_softc;
64
65 static d_open_t apmopen;
66 static d_close_t apmclose;
67 static d_write_t apmwrite;
68 static d_ioctl_t apmioctl;
69 static d_kqfilter_t apmkqfilter;
70
71 #define CDEV_MAJOR 39
72 static struct dev_ops apm_ops = {
73         { "apm", CDEV_MAJOR, D_KQFILTER },
74         .d_open = apmopen,
75         .d_close = apmclose,
76         .d_write = apmwrite,
77         .d_ioctl = apmioctl,
78         .d_kqfilter = apmkqfilter
79 };
80
81 static int
82 acpi_capm_convert_battstate(struct  acpi_battinfo *battp)
83 {
84         int     state;
85
86         state = 0xff;   /* XXX unknown */
87
88         if (battp->state & ACPI_BATT_STAT_DISCHARG) {
89                 if (battp->cap >= 50)
90                         state = 0;      /* high */
91                 else
92                         state = 1;      /* low */
93         }
94         if (battp->state & ACPI_BATT_STAT_CRITICAL)
95                 state = 2;              /* critical */
96         if (battp->state & ACPI_BATT_STAT_CHARGING)
97                 state = 3;              /* charging */
98
99         /* If still unknown, determine it based on the battery capacity. */
100         if (state == 0xff) {
101                 if (battp->cap >= 50)
102                         state = 0;      /* high */
103                 else
104                         state = 1;      /* low */
105         }
106
107         return (state);
108 }
109
110 static int
111 acpi_capm_convert_battflags(struct  acpi_battinfo *battp)
112 {
113         int     flags;
114
115         flags = 0;
116
117         if (battp->cap >= 50)
118                 flags |= APM_BATT_HIGH;
119         else {
120                 if (battp->state & ACPI_BATT_STAT_CRITICAL)
121                         flags |= APM_BATT_CRITICAL;
122                 else
123                         flags |= APM_BATT_LOW;
124         }
125         if (battp->state & ACPI_BATT_STAT_CHARGING)
126                 flags |= APM_BATT_CHARGING;
127         if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
128                 flags = APM_BATT_NOT_PRESENT;
129
130         return (flags);
131 }
132
133 static int
134 acpi_capm_get_info(apm_info_t aip)
135 {
136         int     acline;
137         struct  acpi_battinfo batt;
138
139         aip->ai_infoversion = 1;
140         aip->ai_major       = 1;
141         aip->ai_minor       = 2;
142         aip->ai_status      = apm_softc.active;
143         aip->ai_capabilities= 0xff00;   /* XXX unknown */
144
145         if (acpi_acad_get_acline(&acline))
146                 aip->ai_acline = 0xff;          /* unknown */
147         else
148                 aip->ai_acline = acline;        /* on/off */
149
150         if (acpi_battery_get_battinfo(NULL, &batt)) {
151                 aip->ai_batt_stat = 0xff;       /* unknown */
152                 aip->ai_batt_life = 0xff;       /* unknown */
153                 aip->ai_batt_time = -1;         /* unknown */
154                 aip->ai_batteries = 0;
155         } else {
156                 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
157                 aip->ai_batt_life = batt.cap;
158                 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
159                 aip->ai_batteries = acpi_battery_get_units();
160         }
161
162         return (0);
163 }
164
165 static int
166 acpi_capm_get_pwstatus(apm_pwstatus_t app)
167 {
168         device_t dev;
169         int     acline, unit, error;
170         struct  acpi_battinfo batt;
171
172         if (app->ap_device != PMDV_ALLDEV &&
173             (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
174                 return (1);
175
176         if (app->ap_device == PMDV_ALLDEV)
177                 error = acpi_battery_get_battinfo(NULL, &batt);
178         else {
179                 unit = app->ap_device - PMDV_BATT0;
180                 dev = devclass_get_device(devclass_find("battery"), unit);
181                 if (dev != NULL)
182                         error = acpi_battery_get_battinfo(dev, &batt);
183                 else
184                         error = ENXIO;
185         }
186         if (error)
187                 return (1);
188
189         app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
190         app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
191         app->ap_batt_life = batt.cap;
192         app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
193
194         if (acpi_acad_get_acline(&acline))
195                 app->ap_acline = 0xff;          /* unknown */
196         else
197                 app->ap_acline = acline;        /* on/off */
198
199         return (0);
200 }
201
202 static int
203 apmopen(struct dev_open_args *ap)
204 {
205         return (0);
206 }
207
208 static int
209 apmclose(struct dev_close_args *ap)
210 {
211         return (0);
212 }
213
214 static int
215 apmioctl(struct dev_ioctl_args *ap)
216 {
217         int     error = 0;
218         struct  acpi_softc *acpi_sc;
219         struct apm_info info;
220         apm_info_old_t aiop;
221
222         acpi_sc = device_get_softc(acpi_dev);
223
224         switch (ap->a_cmd) {
225         case APMIO_SUSPEND:
226                 if ((ap->a_fflag & FWRITE) == 0)
227                         return (EPERM);
228                 if (apm_softc.active)
229                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
230                 else
231                         error = EINVAL;
232                 break;
233         case APMIO_STANDBY:
234                 if ((ap->a_fflag & FWRITE) == 0)
235                         return (EPERM);
236                 if (apm_softc.active)
237                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
238                 else
239                         error = EINVAL;
240                 break;
241         case APMIO_GETINFO_OLD:
242                 if (acpi_capm_get_info(&info))
243                         error = ENXIO;
244                 aiop = (apm_info_old_t)ap->a_data;
245                 aiop->ai_major = info.ai_major;
246                 aiop->ai_minor = info.ai_minor;
247                 aiop->ai_acline = info.ai_acline;
248                 aiop->ai_batt_stat = info.ai_batt_stat;
249                 aiop->ai_batt_life = info.ai_batt_life;
250                 aiop->ai_status = info.ai_status;
251                 break;
252         case APMIO_GETINFO:
253                 if (acpi_capm_get_info((apm_info_t)ap->a_data))
254                         error = ENXIO;
255                 break;
256         case APMIO_GETPWSTATUS:
257                 if (acpi_capm_get_pwstatus((apm_pwstatus_t)ap->a_data))
258                         error = ENXIO;
259                 break;
260         case APMIO_ENABLE:
261                 if ((ap->a_fflag & FWRITE) == 0)
262                         return (EPERM);
263                 apm_softc.active = 1;
264                 break;
265         case APMIO_DISABLE:
266                 if ((ap->a_fflag & FWRITE) == 0)
267                         return (EPERM);
268                 apm_softc.active = 0;
269                 break;
270         case APMIO_HALTCPU:
271                 break;
272         case APMIO_NOTHALTCPU:
273                 break;
274         case APMIO_DISPLAY:
275                 if ((ap->a_fflag & FWRITE) == 0)
276                         return (EPERM);
277                 break;
278         case APMIO_BIOS:
279                 if ((ap->a_fflag & FWRITE) == 0)
280                         return (EPERM);
281                 bzero(ap->a_data, sizeof(struct apm_bios_arg));
282                 break;
283         default:
284                 error = EINVAL;
285                 break;
286         }
287
288         return (error);
289 }
290
291 static int
292 apmwrite(struct dev_write_args *ap)
293 {
294         return (ap->a_uio->uio_resid);
295 }
296
297 static void apmfilter_detach(struct knote *);
298 static int apmfilter(struct knote *, long);
299
300 static struct filterops apmfilterops =
301         { FILTEROP_ISFD, NULL, apmfilter_detach, apmfilter };
302
303 static int
304 apmkqfilter(struct dev_kqfilter_args *ap)
305 {
306         struct knote *kn = ap->a_kn;
307
308         kn->kn_fop = &apmfilterops;
309         ap->a_result = 0;
310         return (0);
311 }
312
313 static void
314 apmfilter_detach(struct knote *kn) {}
315
316 static int
317 apmfilter(struct knote *kn, long hint)
318 {
319         return (0);
320 }
321
322 static void
323 acpi_capm_init(struct acpi_softc *sc)
324 {
325         make_dev(&apm_ops, 0, 0, 5, 0664, "apm");
326         make_dev(&apm_ops, 8, 0, 5, 0664, "apm");
327         kprintf("Warning: ACPI is disabling APM's device.  You can't run both\n");
328 }
329
330 int
331 acpi_machdep_init(device_t dev)
332 {
333         struct  acpi_softc *sc;
334
335         acpi_dev = dev;
336         sc = device_get_softc(acpi_dev);
337
338         /*
339          * XXX: Prevent the PnP BIOS code from interfering with
340          * our own scan of ISA devices.
341          */
342         PnPBIOStable = NULL;
343
344         acpi_capm_init(sc);
345
346         acpi_install_wakeup_handler(sc);
347
348         if (intr_model == ACPI_INTR_PIC)
349                 BUS_CONFIG_INTR(dev, dev, AcpiGbl_FADT.SciInterrupt,
350                     INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
351         else
352                 acpi_SetIntrModel(intr_model);
353
354         SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
355             SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
356             "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0,
357             "Call the VESA reset BIOS vector on the resume path");
358
359         return (0);
360 }
361
362 void
363 acpi_SetDefaultIntrModel(int model)
364 {
365
366         intr_model = model;
367 }