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79 lines
1.7 KiB
79 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2012 Samsung Electronics. |
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* Kyungmin Park <[email protected]> |
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* Tomasz Figa <[email protected]> |
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*/ |
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#ifndef __ASM_ARM_FIRMWARE_H |
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#define __ASM_ARM_FIRMWARE_H |
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#include <linux/bug.h> |
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/* |
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* struct firmware_ops |
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* |
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* A structure to specify available firmware operations. |
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* |
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* A filled up structure can be registered with register_firmware_ops(). |
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*/ |
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struct firmware_ops { |
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/* |
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* Inform the firmware we intend to enter CPU idle mode |
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*/ |
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int (*prepare_idle)(unsigned long mode); |
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/* |
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* Enters CPU idle mode |
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*/ |
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int (*do_idle)(unsigned long mode); |
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/* |
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* Sets boot address of specified physical CPU |
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*/ |
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int (*set_cpu_boot_addr)(int cpu, unsigned long boot_addr); |
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/* |
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* Gets boot address of specified physical CPU |
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*/ |
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int (*get_cpu_boot_addr)(int cpu, unsigned long *boot_addr); |
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/* |
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* Boots specified physical CPU |
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*/ |
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int (*cpu_boot)(int cpu); |
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/* |
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* Initializes L2 cache |
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*/ |
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int (*l2x0_init)(void); |
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/* |
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* Enter system-wide suspend. |
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*/ |
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int (*suspend)(void); |
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/* |
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* Restore state of privileged hardware after system-wide suspend. |
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*/ |
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int (*resume)(void); |
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}; |
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/* Global pointer for current firmware_ops structure, can't be NULL. */ |
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extern const struct firmware_ops *firmware_ops; |
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/* |
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* call_firmware_op(op, ...) |
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* |
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* Checks if firmware operation is present and calls it, |
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* otherwise returns -ENOSYS |
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*/ |
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#define call_firmware_op(op, ...) \ |
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((firmware_ops->op) ? firmware_ops->op(__VA_ARGS__) : (-ENOSYS)) |
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/* |
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* register_firmware_ops(ops) |
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* |
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* A function to register platform firmware_ops struct. |
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*/ |
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static inline void register_firmware_ops(const struct firmware_ops *ops) |
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{ |
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BUG_ON(!ops); |
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firmware_ops = ops; |
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} |
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#endif
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