sys/platform/pc64/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 static int intr_model = ACPI_INTR_PIC;
  59 static struct apm_softc apm_softc;
  60
  61 static d_open_t apmopen;
  62 static d_close_t apmclose;
  63 static d_write_t apmwrite;
  64 static d_ioctl_t apmioctl;
  65 static d_kqfilter_t apmkqfilter;
  66
  67 #define CDEV_MAJOR 39
  68 static struct dev_ops apm_ops = {
  69         { "apm", CDEV_MAJOR, 0 },
  70         .d_open = apmopen,
  71         .d_close = apmclose,
  72         .d_write = apmwrite,
  73         .d_ioctl = apmioctl,
  74         .d_kqfilter = apmkqfilter
  75 };
  76
  77 static int
  78 acpi_capm_convert_battstate(struct  acpi_battinfo *battp)
  79 {
  80         int     state;
  81
  82         state = 0xff;   /* XXX unknown */
  83
  84         if (battp->state & ACPI_BATT_STAT_DISCHARG) {
  85                 if (battp->cap >= 50)
  86                         state = 0;      /* high */
  87                 else
  88                         state = 1;      /* low */
  89         }
  90         if (battp->state & ACPI_BATT_STAT_CRITICAL)
  91                 state = 2;              /* critical */
  92         if (battp->state & ACPI_BATT_STAT_CHARGING)
  93                 state = 3;              /* charging */
  94
  95         /* If still unknown, determine it based on the battery capacity. */
  96         if (state == 0xff) {
  97                 if (battp->cap >= 50)
  98                         state = 0;      /* high */
  99                 else
 100                         state = 1;      /* low */
 101         }
 102
 103         return (state);
 104 }
 105
 106 static int
 107 acpi_capm_convert_battflags(struct  acpi_battinfo *battp)
 108 {
 109         int     flags;
 110
 111         flags = 0;
 112
 113         if (battp->cap >= 50)
 114                 flags |= APM_BATT_HIGH;
 115         else {
 116                 if (battp->state & ACPI_BATT_STAT_CRITICAL)
 117                         flags |= APM_BATT_CRITICAL;
 118                 else
 119                         flags |= APM_BATT_LOW;
 120         }
 121         if (battp->state & ACPI_BATT_STAT_CHARGING)
 122                 flags |= APM_BATT_CHARGING;
 123         if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
 124                 flags = APM_BATT_NOT_PRESENT;
 125
 126         return (flags);
 127 }
 128
 129 static int
 130 acpi_capm_get_info(apm_info_t aip)
 131 {
 132         int     acline;
 133         struct  acpi_battinfo batt;
 134
 135         aip->ai_infoversion = 1;
 136         aip->ai_major       = 1;
 137         aip->ai_minor       = 2;
 138         aip->ai_status      = apm_softc.active;
 139         aip->ai_capabilities= 0xff00;   /* XXX unknown */
 140
 141         if (acpi_acad_get_acline(&acline))
 142                 aip->ai_acline = 0xff;          /* unknown */
 143         else
 144                 aip->ai_acline = acline;        /* on/off */
 145
 146         if (acpi_battery_get_battinfo(NULL, &batt)) {
 147                 aip->ai_batt_stat = 0xff;       /* unknown */
 148                 aip->ai_batt_life = 0xff;       /* unknown */
 149                 aip->ai_batt_time = -1;         /* unknown */
 150                 aip->ai_batteries = 0;
 151         } else {
 152                 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
 153                 aip->ai_batt_life = batt.cap;
 154                 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
 155                 aip->ai_batteries = acpi_battery_get_units();
 156         }
 157
 158         return (0);
 159 }
 160
 161 static int
 162 acpi_capm_get_pwstatus(apm_pwstatus_t app)
 163 {
 164         device_t dev;
 165         int     acline, unit, error;
 166         struct  acpi_battinfo batt;
 167
 168         if (app->ap_device != PMDV_ALLDEV &&
 169             (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
 170                 return (1);
 171
 172         if (app->ap_device == PMDV_ALLDEV)
 173                 error = acpi_battery_get_battinfo(NULL, &batt);
 174         else {
 175                 unit = app->ap_device - PMDV_BATT0;
 176                 dev = devclass_get_device(devclass_find("battery"), unit);
 177                 if (dev != NULL)
 178                         error = acpi_battery_get_battinfo(dev, &batt);
 179                 else
 180                         error = ENXIO;
 181         }
 182         if (error)
 183                 return (1);
 184
 185         app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
 186         app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
 187         app->ap_batt_life = batt.cap;
 188         app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
 189
 190         if (acpi_acad_get_acline(&acline))
 191                 app->ap_acline = 0xff;          /* unknown */
 192         else
 193                 app->ap_acline = acline;        /* on/off */
 194
 195         return (0);
 196 }
 197
 198 static int
 199 apmopen(struct dev_open_args *ap)
 200 {
 201         return (0);
 202 }
 203
 204 static int
 205 apmclose(struct dev_close_args *ap)
 206 {
 207         return (0);
 208 }
 209
 210 static int
 211 apmioctl(struct dev_ioctl_args *ap)
 212 {
 213         int     error = 0;
 214         struct  acpi_softc *acpi_sc;
 215         struct apm_info info;
 216         apm_info_old_t aiop;
 217
 218         acpi_sc = device_get_softc(acpi_dev);
 219
 220         switch (ap->a_cmd) {
 221         case APMIO_SUSPEND:
 222                 if ((ap->a_fflag & FWRITE) == 0)
 223                         return (EPERM);
 224                 if (apm_softc.active)
 225                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
 226                 else
 227                         error = EINVAL;
 228                 break;
 229         case APMIO_STANDBY:
 230                 if ((ap->a_fflag & FWRITE) == 0)
 231                         return (EPERM);
 232                 if (apm_softc.active)
 233                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
 234                 else
 235                         error = EINVAL;
 236                 break;
 237         case APMIO_GETINFO_OLD:
 238                 if (acpi_capm_get_info(&info))
 239                         error = ENXIO;
 240                 aiop = (apm_info_old_t)ap->a_data;
 241                 aiop->ai_major = info.ai_major;
 242                 aiop->ai_minor = info.ai_minor;
 243                 aiop->ai_acline = info.ai_acline;
 244                 aiop->ai_batt_stat = info.ai_batt_stat;
 245                 aiop->ai_batt_life = info.ai_batt_life;
 246                 aiop->ai_status = info.ai_status;
 247                 break;
 248         case APMIO_GETINFO:
 249                 if (acpi_capm_get_info((apm_info_t)ap->a_data))
 250                         error = ENXIO;
 251                 break;
 252         case APMIO_GETPWSTATUS:
 253                 if (acpi_capm_get_pwstatus((apm_pwstatus_t)ap->a_data))
 254                         error = ENXIO;
 255                 break;
 256         case APMIO_ENABLE:
 257                 if ((ap->a_fflag & FWRITE) == 0)
 258                         return (EPERM);
 259                 apm_softc.active = 1;
 260                 break;
 261         case APMIO_DISABLE:
 262                 if ((ap->a_fflag & FWRITE) == 0)
 263                         return (EPERM);
 264                 apm_softc.active = 0;
 265                 break;
 266         case APMIO_HALTCPU:
 267                 break;
 268         case APMIO_NOTHALTCPU:
 269                 break;
 270         case APMIO_DISPLAY:
 271                 if ((ap->a_fflag & FWRITE) == 0)
 272                         return (EPERM);
 273                 break;
 274         case APMIO_BIOS:
 275                 if ((ap->a_fflag & FWRITE) == 0)
 276                         return (EPERM);
 277                 bzero(ap->a_data, sizeof(struct apm_bios_arg));
 278                 break;
 279         default:
 280                 error = EINVAL;
 281                 break;
 282         }
 283
 284         return (error);
 285 }
 286
 287 static int
 288 apmwrite(struct dev_write_args *ap)
 289 {
 290         return (ap->a_uio->uio_resid);
 291 }
 292
 293 static void apmfilter_detach(struct knote *);
 294 static int apmfilter(struct knote *, long);
 295
 296 static struct filterops apmfilterops =
 297         { 1, NULL, apmfilter_detach, apmfilter };
 298
 299 static int
 300 apmkqfilter(struct dev_kqfilter_args *ap)
 301 {
 302         struct knote *kn = ap->a_kn;
 303
 304         kn->kn_fop = &apmfilterops;
 305         ap->a_result = 0;
 306         return (0);
 307 }
 308
 309 static void
 310 apmfilter_detach(struct knote *kn) {}
 311
 312 static int
 313 apmfilter(struct knote *kn, long hint)
 314 {
 315         return (0);
 316 }
 317
 318 static void
 319 acpi_capm_init(struct acpi_softc *sc)
 320 {
 321         make_dev(&apm_ops, 0, 0, 5, 0664, "apm");
 322         make_dev(&apm_ops, 8, 0, 5, 0664, "apm");
 323         kprintf("Warning: ACPI is disabling APM's device.  You can't run both\n");
 324 }
 325
 326 int
 327 acpi_machdep_init(device_t dev)
 328 {
 329         struct  acpi_softc *sc;
 330
 331         acpi_dev = dev;
 332         sc = device_get_softc(acpi_dev);
 333
 334         /*
 335          * XXX: Prevent the PnP BIOS code from interfering with
 336          * our own scan of ISA devices.
 337          */
 338 #if 0
 339         PnPBIOStable = NULL;
 340 #endif
 341
 342         acpi_capm_init(sc);
 343
 344         acpi_install_wakeup_handler(sc);
 345
 346         if (intr_model == ACPI_INTR_PIC)
 347                 BUS_CONFIG_INTR(dev, dev, AcpiGbl_FADT.SciInterrupt,
 348                     INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
 349         else
 350                 acpi_SetIntrModel(intr_model);
 351
 352         SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
 353             SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
 354             "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0,
 355             "Call the VESA reset BIOS vector on the resume path");
 356
 357         return (0);
 358 }
 359
 360 void
 361 acpi_SetDefaultIntrModel(int model)
 362 {
 363
 364         intr_model = model;
 365 }