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/* arch/arm/plat-samsung/include/plat/pm.h
*
* Copyright (c) 2004 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Written by Ben Dooks, <ben@simtec.co.uk>
*
* 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.
*/
/* s3c_pm_init
*
* called from board at initialisation time to setup the power
* management
*/
#include <plat/pm-common.h>
struct device;
#ifdef CONFIG_SAMSUNG_PM
extern __init int s3c_pm_init(void);
extern __init int s3c64xx_pm_init(void);
#else
static inline int s3c_pm_init(void)
{
return 0;
}
static inline int s3c64xx_pm_init(void)
{
return 0;
}
#endif
/* configuration for the IRQ mask over sleep */
extern unsigned long s3c_irqwake_intmask;
extern unsigned long s3c_irqwake_eintmask;
/* IRQ masks for IRQs allowed to go to sleep (see irq.c) */
extern unsigned long s3c_irqwake_intallow;
extern unsigned long s3c_irqwake_eintallow;
/* per-cpu sleep functions */
extern void (*pm_cpu_prep)(void);
extern int (*pm_cpu_sleep)(unsigned long);
/* Flags for PM Control */
extern unsigned long s3c_pm_flags;
/* from sleep.S */
extern int s3c2410_cpu_suspend(unsigned long);
#ifdef CONFIG_SAMSUNG_PM
extern int s3c_irq_wake(struct irq_data *data, unsigned int state);
extern int s3c_irqext_wake(struct irq_data *data, unsigned int state);
extern void s3c_cpu_resume(void);
#else
#define s3c_irq_wake NULL
#define s3c_irqext_wake NULL
#define s3c_cpu_resume NULL
#endif
#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
/**
* s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs
* @set: set bits for the state of the LEDs
* @clear: clear bits for the state of the LEDs.
*/
extern void s3c_pm_debug_smdkled(u32 set, u32 clear);
#else
static inline void s3c_pm_debug_smdkled(u32 set, u32 clear) { }
#endif /* CONFIG_S3C_PM_DEBUG_LED_SMDK */
/* suspend memory checking */
#ifdef CONFIG_SAMSUNG_PM_CHECK
extern void s3c_pm_check_prepare(void);
extern void s3c_pm_check_restore(void);
extern void s3c_pm_check_cleanup(void);
extern void s3c_pm_check_store(void);
#else
#define s3c_pm_check_prepare() do { } while(0)
#define s3c_pm_check_restore() do { } while(0)
#define s3c_pm_check_cleanup() do { } while(0)
#define s3c_pm_check_store() do { } while(0)
#endif
/**
* s3c_pm_configure_extint() - ensure pins are correctly set for IRQ
*
* Setup all the necessary GPIO pins for waking the system on external
* interrupt.
*/
extern void s3c_pm_configure_extint(void);
#ifdef CONFIG_GPIO_SAMSUNG
/**
* samsung_pm_restore_gpios() - restore the state of the gpios after sleep.
*
* Restore the state of the GPIO pins after sleep, which may involve ensuring
* that we do not glitch the state of the pins from that the bootloader's
* resume code has done.
*/
extern void samsung_pm_restore_gpios(void);
/**
* samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep.
*
* Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios().
*/
extern void samsung_pm_save_gpios(void);
#else
static inline void samsung_pm_restore_gpios(void) {}
static inline void samsung_pm_save_gpios(void) {}
#endif
extern void s3c_pm_save_core(void);
extern void s3c_pm_restore_core(void);
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