suspend.h

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#ifndef _ASM_SH_SUSPEND_H
#define _ASM_SH_SUSPEND_H

#ifndef __ASSEMBLY__
#include <linux/notifier.h>

#include <asm/ptrace.h>

struct swsusp_arch_regs {
    struct pt_regs user_regs;
    unsigned long bank1_regs[8];
};

void sh_mobile_call_standby(unsigned long mode);

#ifdef CONFIG_CPU_IDLE
void sh_mobile_setup_cpuidle(void);
#else
static inline void sh_mobile_setup_cpuidle(void) {}
#endif

/* notifier chains for pre/post sleep hooks */
extern struct atomic_notifier_head sh_mobile_pre_sleep_notifier_list;
extern struct atomic_notifier_head sh_mobile_post_sleep_notifier_list;

/* priority levels for notifiers */
#define SH_MOBILE_SLEEP_BOARD   0
#define SH_MOBILE_SLEEP_CPU 1
#define SH_MOBILE_PRE(x)    (x)
#define SH_MOBILE_POST(x)   (-(x))

/* board code registration function for self-refresh assembly snippets */
void sh_mobile_register_self_refresh(unsigned long flags,
                     void *pre_start, void *pre_end,
                     void *post_start, void *post_end);

/* register structure for address/data information */
struct sh_sleep_regs {
    unsigned long stbcr;
    unsigned long bar;

    /* MMU */
    unsigned long pteh;
    unsigned long ptel;
    unsigned long ttb;
    unsigned long tea;
    unsigned long mmucr;
    unsigned long ptea;
    unsigned long pascr;
    unsigned long irmcr;

    /* Cache */
    unsigned long ccr;
    unsigned long ramcr;
};

/* data area for low-level sleep code */
struct sh_sleep_data {
    /* current sleep mode (SUSP_SH_...) */
    unsigned long mode;

    /* addresses of board specific self-refresh snippets */
    unsigned long sf_pre;
    unsigned long sf_post;

    /* address of resume code */
    unsigned long resume;

    /* register state saved and restored by the assembly code */
    unsigned long vbr;
    unsigned long spc;
    unsigned long sr;
    unsigned long sp;

    /* structure for keeping register addresses */
    struct sh_sleep_regs addr;

    /* structure for saving/restoring register state */
    struct sh_sleep_regs data;
};

/* a bitmap of supported sleep modes (SUSP_SH..) */
extern unsigned long sh_mobile_sleep_supported;

#endif

/* flags passed to assembly suspend code */
#define SUSP_SH_SLEEP       (1 << 0) /* Regular sleep mode */
#define SUSP_SH_STANDBY     (1 << 1) /* SH-Mobile Software standby mode */
#define SUSP_SH_RSTANDBY    (1 << 2) /* SH-Mobile R-standby mode */
#define SUSP_SH_USTANDBY    (1 << 3) /* SH-Mobile U-standby mode */
#define SUSP_SH_SF      (1 << 4) /* Enable self-refresh */
#define SUSP_SH_MMU     (1 << 5) /* Save/restore MMU and cache */
#define SUSP_SH_REGS        (1 << 6) /* Save/restore registers */

#endif /* _ASM_SH_SUSPEND_H */