| // Copyright 2017 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #ifndef ZIRCON_KERNEL_ARCH_X86_INCLUDE_ARCH_X86_ACPI_H_ |
| #define ZIRCON_KERNEL_ARCH_X86_INCLUDE_ARCH_X86_ACPI_H_ |
| |
| #include <stdint.h> |
| |
| #include <acpica/acpi.h> |
| #include <arch/x86/bootstrap16.h> |
| |
| __BEGIN_CDECLS |
| |
| // Initiates a transition to the requested ACPI S-state. |
| // |
| // This must not be called before bootstrap16 is configured to handle the resume. |
| // |
| // This must be called from a kernel thread, unless it is a transition to |
| // S5 (poweroff). Failure to do so may result in loss of usermode register state. |
| ACPI_STATUS x86_acpi_transition_s_state(struct x86_realmode_entry_data_registers* regs, |
| uint8_t target_s_state, uint8_t sleep_type_a, |
| uint8_t sleep_type_b); |
| |
| __END_CDECLS |
| |
| #endif // ZIRCON_KERNEL_ARCH_X86_INCLUDE_ARCH_X86_ACPI_H_ |
