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 /* PM_TMR */
  77 struct ACPIPMTimer;
  78 typedef struct ACPIPMTimer ACPIPMTimer;
  79
  80 typedef void (*acpi_update_sci_fn)(ACPIPMTimer *tmr);
  81
  82 struct ACPIPMTimer {
  83     QEMUTimer *timer;
  84     int64_t overflow_time;
  85
  86     acpi_update_sci_fn update_sci;
  87 };
  88
  89 void acpi_pm_tmr_update(ACPIPMTimer *tmr, bool enable);
  90 void acpi_pm_tmr_calc_overflow_time(ACPIPMTimer *tmr);
  91 uint32_t acpi_pm_tmr_get(ACPIPMTimer *tmr);
  92 void acpi_pm_tmr_init(ACPIPMTimer *tmr, acpi_update_sci_fn update_sci);
  93 void acpi_pm_tmr_reset(ACPIPMTimer *tmr);
  94
  95 #include "qemu-timer.h"
  96 static inline int64_t acpi_pm_tmr_get_clock(void)
  97 {
  98     return muldiv64(qemu_get_clock_ns(vm_clock), PM_TIMER_FREQUENCY,
  99                     get_ticks_per_sec());
 100 }
 101
 102 /* PM1a_EVT: piix and ich9 don't implement PM1b. */
 103 struct ACPIPM1EVT
 104 {
 105     uint16_t sts;
 106     uint16_t en;
 107 };
 108 typedef struct ACPIPM1EVT ACPIPM1EVT;
 109
 110 uint16_t acpi_pm1_evt_get_sts(ACPIPM1EVT *pm1, int64_t overflow_time);
 111 void acpi_pm1_evt_write_sts(ACPIPM1EVT *pm1, ACPIPMTimer *tmr, uint16_t val);
 112 void acpi_pm1_evt_power_down(ACPIPM1EVT *pm1, ACPIPMTimer *tmr);
 113 void acpi_pm1_evt_reset(ACPIPM1EVT *pm1);
 114
 115 /* PM1a_CNT: piix and ich9 don't implement PM1b CNT. */
 116 struct ACPIPM1CNT {
 117     uint16_t cnt;
 118
 119     qemu_irq cmos_s3;
 120 };
 121 typedef struct ACPIPM1CNT ACPIPM1CNT;
 122
 123 void acpi_pm1_cnt_init(ACPIPM1CNT *pm1_cnt, qemu_irq cmos_s3);
 124 void acpi_pm1_cnt_write(ACPIPM1EVT *pm1a, ACPIPM1CNT *pm1_cnt, uint16_t val);
 125 void acpi_pm1_cnt_update(ACPIPM1CNT *pm1_cnt,
 126                          bool sci_enable, bool sci_disable);
 127 void acpi_pm1_cnt_reset(ACPIPM1CNT *pm1_cnt);
 128
 129 /* GPE0 */
 130 struct ACPIGPE {
 131     uint32_t blk;
 132     uint8_t len;
 133
 134     uint8_t *sts;
 135     uint8_t *en;
 136 };
 137 typedef struct ACPIGPE ACPIGPE;
 138
 139 void acpi_gpe_init(ACPIGPE *gpe, uint8_t len);
 140 void acpi_gpe_blk(ACPIGPE *gpe, uint32_t blk);
 141 void acpi_gpe_reset(ACPIGPE *gpe);
 142
 143 void acpi_gpe_ioport_writeb(ACPIGPE *gpe, uint32_t addr, uint32_t val);
 144 uint32_t acpi_gpe_ioport_readb(ACPIGPE *gpe, uint32_t addr);
 145
 146 #endif /* !QEMU_HW_ACPI_H */