/* * Copyright (C) 2012 Samsung Electronics. * Kyungmin Park <kyungmin.park@samsung.com> * Tomasz Figa <t.figa@samsung.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __ASM_ARM_FIRMWARE_H #define __ASM_ARM_FIRMWARE_H #include <linux/bug.h> /* * struct firmware_ops * * A structure to specify available firmware operations. * * A filled up structure can be registered with register_firmware_ops(). */ struct firmware_ops { /* * Inform the firmware we intend to enter CPU idle mode */ int (*prepare_idle)(void); /* * Enters CPU idle mode */ int (*do_idle)(unsigned long mode); /* * Sets boot address of specified physical CPU */ int (*set_cpu_boot_addr)(int cpu, unsigned long boot_addr); /* * Gets boot address of specified physical CPU */ int (*get_cpu_boot_addr)(int cpu, unsigned long *boot_addr); /* * Boots specified physical CPU */ int (*cpu_boot)(int cpu); /* * Initializes L2 cache */ int (*l2x0_init)(void); /* * Enter system-wide suspend. */ int (*suspend)(void); /* * Restore state of privileged hardware after system-wide suspend. */ int (*resume)(void); }; /* Global pointer for current firmware_ops structure, can't be NULL. */ extern const struct firmware_ops *firmware_ops; /* * call_firmware_op(op, ...) * * Checks if firmware operation is present and calls it, * otherwise returns -ENOSYS */ #define call_firmware_op(op, ...) \ ((firmware_ops->op) ? firmware_ops->op(__VA_ARGS__) : (-ENOSYS)) /* * register_firmware_ops(ops) * * A function to register platform firmware_ops struct. */ static inline void register_firmware_ops(const struct firmware_ops *ops) { BUG_ON(!ops); firmware_ops = ops; } #endif