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 1.13 2007/01/17 17:31:19 y0netan1 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
  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_poll_t apmpoll;
  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_poll = apmpoll
  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(-1, &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         int     batt_unit;
 165         int     acline;
 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                 batt_unit = -1;                 /* all units */
 174         else
 175                 batt_unit = app->ap_device - PMDV_BATT0;
 176
 177         if (acpi_battery_get_battinfo(batt_unit, &batt))
 178                 return (1);
 179
 180         app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
 181         app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
 182         app->ap_batt_life = batt.cap;
 183         app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
 184
 185         if (acpi_acad_get_acline(&acline))
 186                 app->ap_acline = 0xff;          /* unknown */
 187         else
 188                 app->ap_acline = acline;        /* on/off */
 189
 190         return (0);
 191 }
 192
 193 static int
 194 apmopen(struct dev_open_args *ap)
 195 {
 196         return (0);
 197 }
 198
 199 static int
 200 apmclose(struct dev_close_args *ap)
 201 {
 202         return (0);
 203 }
 204
 205 static int
 206 apmioctl(struct dev_ioctl_args *ap)
 207 {
 208         int     error = 0;
 209         struct  acpi_softc *acpi_sc;
 210         struct apm_info info;
 211         apm_info_old_t aiop;
 212
 213         acpi_sc = device_get_softc(acpi_dev);
 214
 215         switch (ap->a_cmd) {
 216         case APMIO_SUSPEND:
 217                 if ((ap->a_fflag & FWRITE) == 0)
 218                         return (EPERM);
 219                 if (apm_softc.active)
 220                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
 221                 else
 222                         error = EINVAL;
 223                 break;
 224         case APMIO_STANDBY:
 225                 if ((ap->a_fflag & FWRITE) == 0)
 226                         return (EPERM);
 227                 if (apm_softc.active)
 228                         acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
 229                 else
 230                         error = EINVAL;
 231                 break;
 232         case APMIO_GETINFO_OLD:
 233                 if (acpi_capm_get_info(&info))
 234                         error = ENXIO;
 235                 aiop = (apm_info_old_t)ap->a_data;
 236                 aiop->ai_major = info.ai_major;
 237                 aiop->ai_minor = info.ai_minor;
 238                 aiop->ai_acline = info.ai_acline;
 239                 aiop->ai_batt_stat = info.ai_batt_stat;
 240                 aiop->ai_batt_life = info.ai_batt_life;
 241                 aiop->ai_status = info.ai_status;
 242                 break;
 243         case APMIO_GETINFO:
 244                 if (acpi_capm_get_info((apm_info_t)ap->a_data))
 245                         error = ENXIO;
 246                 break;
 247         case APMIO_GETPWSTATUS:
 248                 if (acpi_capm_get_pwstatus((apm_pwstatus_t)ap->a_data))
 249                         error = ENXIO;
 250                 break;
 251         case APMIO_ENABLE:
 252                 if ((ap->a_fflag & FWRITE) == 0)
 253                         return (EPERM);
 254                 apm_softc.active = 1;
 255                 break;
 256         case APMIO_DISABLE:
 257                 if ((ap->a_fflag & FWRITE) == 0)
 258                         return (EPERM);
 259                 apm_softc.active = 0;
 260                 break;
 261         case APMIO_HALTCPU:
 262                 break;
 263         case APMIO_NOTHALTCPU:
 264                 break;
 265         case APMIO_DISPLAY:
 266                 if ((ap->a_fflag & FWRITE) == 0)
 267                         return (EPERM);
 268                 break;
 269         case APMIO_BIOS:
 270                 if ((ap->a_fflag & FWRITE) == 0)
 271                         return (EPERM);
 272                 bzero(ap->a_data, sizeof(struct apm_bios_arg));
 273                 break;
 274         default:
 275                 error = EINVAL;
 276                 break;
 277         }
 278
 279         return (error);
 280 }
 281
 282 static int
 283 apmwrite(struct dev_write_args *ap)
 284 {
 285         return (ap->a_uio->uio_resid);
 286 }
 287
 288 static int
 289 apmpoll(struct dev_poll_args *ap)
 290 {
 291         ap->a_events = 0;
 292         return (0);
 293 }
 294
 295 static void
 296 acpi_capm_init(struct acpi_softc *sc)
 297 {
 298         dev_ops_add(&apm_ops, 0, 0);
 299         make_dev(&apm_ops, 0, 0, 5, 0664, "apm");
 300         make_dev(&apm_ops, 8, 0, 5, 0664, "apm");
 301         kprintf("Warning: ACPI is disabling APM's device.  You can't run both\n");
 302 }
 303
 304 int
 305 acpi_machdep_init(device_t dev)
 306 {
 307         struct  acpi_softc *sc;
 308
 309         acpi_dev = dev;
 310         sc = device_get_softc(acpi_dev);
 311
 312         /*
 313          * XXX: Prevent the PnP BIOS code from interfering with
 314          * our own scan of ISA devices.
 315          */
 316         PnPBIOStable = NULL;
 317
 318         acpi_capm_init(sc);
 319
 320         acpi_install_wakeup_handler(sc);
 321
 322         if (intr_model == ACPI_INTR_PIC)
 323                 BUS_CONFIG_INTR(dev, AcpiGbl_FADT.SciInterrupt,
 324                     INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
 325         else
 326                 acpi_SetIntrModel(intr_model);
 327
 328         SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
 329             SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
 330             "reset_video", CTLFLAG_RD | CTLFLAG_RW, &acpi_reset_video, 0,
 331             "Call the VESA reset BIOS vector on the resume path");
 332
 333         return (0);
 334 }
 335
 336 void
 337 acpi_SetDefaultIntrModel(int model)
 338 {
 339
 340         intr_model = model;
 341 }