81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*/
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#ifndef __SBI_SYSTEM_H__
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#define __SBI_SYSTEM_H__
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#include <sbi/sbi_types.h>
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#include <sbi/sbi_list.h>
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/** System reset hardware device */
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struct sbi_system_reset_device {
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/** Name of the system reset device */
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char name[32];
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/* Check whether reset type and reason supported by the device */
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int (*system_reset_check)(u32 reset_type, u32 reset_reason);
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/** Reset the system */
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void (*system_reset)(u32 reset_type, u32 reset_reason);
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/** List */
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struct sbi_dlist node;
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};
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static inline struct sbi_system_reset_device *to_system_reset_device(
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struct sbi_dlist *node)
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{
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return container_of(node, struct sbi_system_reset_device, node);
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}
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const struct sbi_system_reset_device *sbi_system_reset_get_device(
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u32 reset_type, u32 reset_reason);
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void sbi_system_reset_add_device(struct sbi_system_reset_device *dev);
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bool sbi_system_reset_supported(u32 reset_type, u32 reset_reason);
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void __noreturn sbi_system_reset(u32 reset_type, u32 reset_reason);
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/** System suspend device */
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struct sbi_system_suspend_device {
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/** Name of the system suspend device */
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char name[32];
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/**
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* Check whether sleep type is supported by the device
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*
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* Returns 0 when @sleep_type supported, SBI_ERR_INVALID_PARAM
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* when @sleep_type is reserved, or SBI_ERR_NOT_SUPPORTED when
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* @sleep_type is not reserved and is implemented, but the
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* platform doesn't support it due to missing dependencies.
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*/
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int (*system_suspend_check)(u32 sleep_type);
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/**
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* Suspend the system
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*
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* @sleep_type: The sleep type identifier passed to the SBI call.
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* @mmode_resume_addr:
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* This is the same as sbi_scratch.warmboot_addr. Some platforms
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* may not be able to return from system_suspend(), so they will
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* jump directly to this address instead. Platforms which can
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* return from system_suspend() may ignore this parameter.
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*/
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int (*system_suspend)(u32 sleep_type, unsigned long mmode_resume_addr);
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};
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const struct sbi_system_suspend_device *sbi_system_suspend_get_device(void);
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void sbi_system_suspend_set_device(struct sbi_system_suspend_device *dev);
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void sbi_system_suspend_test_enable(void);
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bool sbi_system_suspend_supported(u32 sleep_type);
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int sbi_system_suspend(u32 sleep_type, ulong resume_addr, ulong opaque);
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#endif
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