diff options
Diffstat (limited to 'hw/acpi.c')
| -rw-r--r-- | hw/acpi.c | 49 |
1 files changed, 47 insertions, 2 deletions
@@ -275,7 +275,7 @@ uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar) return ar->pm1.evt.sts; } -void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val) +static void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val) { uint16_t pm1_sts = acpi_pm1_evt_get_sts(ar); if (pm1_sts & val & ACPI_BITMASK_TIMER_STATUS) { @@ -285,7 +285,7 @@ void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val) ar->pm1.evt.sts &= ~val; } -void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val) +static void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val) { ar->pm1.evt.en = val; qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, @@ -310,6 +310,51 @@ void acpi_pm1_evt_reset(ACPIREGS *ar) qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, 0); } +static uint64_t acpi_pm_evt_read(void *opaque, hwaddr addr, unsigned width) +{ + ACPIREGS *ar = opaque; + switch (addr) { + case 0: + return acpi_pm1_evt_get_sts(ar); + case 2: + return ar->pm1.evt.en; + default: + return 0; + } +} + +static void acpi_pm_evt_write(void *opaque, hwaddr addr, uint64_t val, + unsigned width) +{ + ACPIREGS *ar = opaque; + switch (addr) { + case 0: + acpi_pm1_evt_write_sts(ar, val); + ar->pm1.evt.update_sci(ar); + break; + case 2: + acpi_pm1_evt_write_en(ar, val); + ar->pm1.evt.update_sci(ar); + break; + } +} + +static const MemoryRegionOps acpi_pm_evt_ops = { + .read = acpi_pm_evt_read, + .write = acpi_pm_evt_write, + .valid.min_access_size = 2, + .valid.max_access_size = 2, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, + MemoryRegion *parent) +{ + ar->pm1.evt.update_sci = update_sci; + memory_region_init_io(&ar->pm1.evt.io, &acpi_pm_evt_ops, ar, "acpi-evt", 4); + memory_region_add_subregion(parent, 0, &ar->pm1.evt.io); +} + /* ACPI PM_TMR */ void acpi_pm_tmr_update(ACPIREGS *ar, bool enable) { |