LXR qemu/hw/acpi.h

   1#ifndef QEMU_HW_ACPI_H
   2#define QEMU_HW_ACPI_H
   3/*
   4 *  Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp>
   5 *                     VA Linux Systems Japan K.K.
   6 *
   7 * This library is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU Lesser General Public
   9 * License as published by the Free Software Foundation; either
  10 * version 2 of the License, or (at your option) any later version.
  11 *
  12 * This library is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * Lesser General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU Lesser General Public
  18 * License along with this library; if not, see
  19 * <http://www.gnu.org/licenses/>.
  20 */
  21
  22/* from linux include/acpi/actype.h */
  23/* Default ACPI register widths */
  24
  25#define ACPI_GPE_REGISTER_WIDTH         8
  26#define ACPI_PM1_REGISTER_WIDTH         16
  27#define ACPI_PM2_REGISTER_WIDTH         8
  28#define ACPI_PM_TIMER_WIDTH             32
  29
  30/* PM Timer ticks per second (HZ) */
  31#define PM_TIMER_FREQUENCY  3579545
  32
  33
  34/* ACPI fixed hardware registers */
  35
  36/* from linux/drivers/acpi/acpica/aclocal.h */
  37/* Masks used to access the bit_registers */
  38
  39/* PM1x_STS */
  40#define ACPI_BITMASK_TIMER_STATUS               0x0001
  41#define ACPI_BITMASK_BUS_MASTER_STATUS          0x0010
  42#define ACPI_BITMASK_GLOBAL_LOCK_STATUS         0x0020
  43#define ACPI_BITMASK_POWER_BUTTON_STATUS        0x0100
  44#define ACPI_BITMASK_SLEEP_BUTTON_STATUS        0x0200
  45#define ACPI_BITMASK_RT_CLOCK_STATUS            0x0400
  46#define ACPI_BITMASK_PCIEXP_WAKE_STATUS         0x4000  /* ACPI 3.0 */
  47#define ACPI_BITMASK_WAKE_STATUS                0x8000
  48
  49#define ACPI_BITMASK_ALL_FIXED_STATUS           (\
  50        ACPI_BITMASK_TIMER_STATUS          | \
  51        ACPI_BITMASK_BUS_MASTER_STATUS     | \
  52        ACPI_BITMASK_GLOBAL_LOCK_STATUS    | \
  53        ACPI_BITMASK_POWER_BUTTON_STATUS   | \
  54        ACPI_BITMASK_SLEEP_BUTTON_STATUS   | \
  55        ACPI_BITMASK_RT_CLOCK_STATUS       | \
  56        ACPI_BITMASK_WAKE_STATUS)
  57
  58/* PM1x_EN */
  59#define ACPI_BITMASK_TIMER_ENABLE               0x0001
  60#define ACPI_BITMASK_GLOBAL_LOCK_ENABLE         0x0020
  61#define ACPI_BITMASK_POWER_BUTTON_ENABLE        0x0100
  62#define ACPI_BITMASK_SLEEP_BUTTON_ENABLE        0x0200
  63#define ACPI_BITMASK_RT_CLOCK_ENABLE            0x0400
  64#define ACPI_BITMASK_PCIEXP_WAKE_DISABLE        0x4000  /* ACPI 3.0 */
  65
  66/* PM1x_CNT */
  67#define ACPI_BITMASK_SCI_ENABLE                 0x0001
  68#define ACPI_BITMASK_BUS_MASTER_RLD             0x0002
  69#define ACPI_BITMASK_GLOBAL_LOCK_RELEASE        0x0004
  70#define ACPI_BITMASK_SLEEP_TYPE                 0x1C00
  71#define ACPI_BITMASK_SLEEP_ENABLE               0x2000
  72
  73/* PM2_CNT */
  74#define ACPI_BITMASK_ARB_DISABLE                0x0001
  75
  76/* structs */
  77typedef struct ACPIPMTimer ACPIPMTimer;
  78typedef struct ACPIPM1EVT ACPIPM1EVT;
  79typedef struct ACPIPM1CNT ACPIPM1CNT;
  80typedef struct ACPIGPE ACPIGPE;
  81typedef struct ACPIREGS ACPIREGS;
  82
  83typedef void (*acpi_update_sci_fn)(ACPIREGS *ar);
  84
  85struct ACPIPMTimer {
  86    QEMUTimer *timer;
  87    int64_t overflow_time;
  88
  89    acpi_update_sci_fn update_sci;
  90};
  91
  92struct ACPIPM1EVT {
  93    uint16_t sts;
  94    uint16_t en;
  95};
  96
  97struct ACPIPM1CNT {
  98    uint16_t cnt;
  99};
 100
 101struct ACPIGPE {
 102    uint32_t blk;
 103    uint8_t len;
 104
 105    uint8_t *sts;
 106    uint8_t *en;
 107};
 108
 109struct ACPIREGS {
 110    ACPIPMTimer     tmr;
 111    ACPIGPE         gpe;
 112    struct {
 113        ACPIPM1EVT  evt;
 114        ACPIPM1CNT  cnt;
 115    } pm1;
 116    Notifier wakeup;
 117};
 118
 119/* PM_TMR */
 120void acpi_pm_tmr_update(ACPIREGS *ar, bool enable);
 121void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar);
 122uint32_t acpi_pm_tmr_get(ACPIREGS *ar);
 123void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci);
 124void acpi_pm_tmr_reset(ACPIREGS *ar);
 125
 126#include "qemu-timer.h"
 127static inline int64_t acpi_pm_tmr_get_clock(void)
 128{
 129    return muldiv64(qemu_get_clock_ns(vm_clock), PM_TIMER_FREQUENCY,
 130                    get_ticks_per_sec());
 131}
 132
 133/* PM1a_EVT: piix and ich9 don't implement PM1b. */
 134uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar);
 135void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val);
 136void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val);
 137void acpi_pm1_evt_power_down(ACPIREGS *ar);
 138void acpi_pm1_evt_reset(ACPIREGS *ar);
 139
 140/* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */
 141void acpi_pm1_cnt_init(ACPIREGS *ar);
 142void acpi_pm1_cnt_write(ACPIREGS *ar, uint16_t val, char s4);
 143void acpi_pm1_cnt_update(ACPIREGS *ar,
 144                         bool sci_enable, bool sci_disable);
 145void acpi_pm1_cnt_reset(ACPIREGS *ar);
 146
 147/* GPE0 */
 148void acpi_gpe_init(ACPIREGS *ar, uint8_t len);
 149void acpi_gpe_blk(ACPIREGS *ar, uint32_t blk);
 150void acpi_gpe_reset(ACPIREGS *ar);
 151
 152void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val);
 153uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr);
 154
 155#endif /* !QEMU_HW_ACPI_H */
 156