#ifndef _USERUI_H_
#define _USERUI_H_

#include <sys/syscall.h>
#include <sys/types.h>
#include "suspend_userui.h"

#define USERUI_VERSION "0.7.3"

struct userui_ops {
	char *name;
	void (*prepare) ();
	void (*cleanup) ();
	void (*message) (__uint32_t type, __uint32_t level,
			__uint32_t normally_logged, char *text);
	void (*update_progress) (__uint32_t value, __uint32_t maximum,
			char *text);
	void (*log_level_change) ();
	void (*redraw) ();
	void (*keypress) (int key);
	unsigned long (*memory_required) ();
	/* For extra cmdline options: */
	char *optstring;
	struct option *longopts;
	int (*option_handler) (char c);
	char *(*cmdline_options) ();
};


int send_message(int type, void* buf, int len);
int common_keypress_handler(int key);
void set_console_loglevel(int exiting);
void printk(char *msg, ...);

extern char software_suspend_version[32];
extern int can_use_escape;
extern volatile __uint32_t console_loglevel;
extern volatile __uint32_t suspend_action;
extern volatile __uint32_t suspend_debug;
extern volatile int resuming;

/* excerpts from include/linux/suspend2.h : */

/* debugging levels. */
#define SUSPEND_STATUS		0
#define SUSPEND_UI_MSG		1
#define SUSPEND_ERROR		2
#define SUSPEND_LOW	 	3
#define SUSPEND_MEDIUM	 	4
#define SUSPEND_HIGH	  	5
#define SUSPEND_VERBOSE		6

/* second status register */
enum {
	SUSPEND_REBOOT,
	SUSPEND_PAUSE,
	SUSPEND_SLOW,
	SUSPEND_NOPAGESET2,
	SUSPEND_LOGALL,
	SUSPEND_CAN_CANCEL,
	SUSPEND_KEEP_IMAGE,
	SUSPEND_FREEZER_TEST,
	SUSPEND_FREEZER_TEST_SHOWALL,
	SUSPEND_SINGLESTEP,
	SUSPEND_PAUSE_NEAR_PAGESET_END,
	SUSPEND_USE_ACPI_S4,
	SUSPEND_KEEP_METADATA,
	SUSPEND_TEST_FILTER_SPEED,
	SUSPEND_FREEZE_TIMERS,
	SUSPEND_DISABLE_SYSDEV_SUPPORT,
	SUSPEND_VGA_POST
};

/* Debug sections  - if debugging compiled in */
enum {
	SUSPEND_ANY_SECTION,
	SUSPEND_FREEZER,
	SUSPEND_EAT_MEMORY,
	SUSPEND_PAGESETS,
	SUSPEND_IO,
	SUSPEND_BMAP,
	SUSPEND_HEADER,
	SUSPEND_WRITER,
	SUSPEND_MEMORY,
	SUSPEND_EXTENTS,
	SUSPEND_SPINLOCKS,
	SUSPEND_MEM_POOL,
	SUSPEND_RANGE_PARANOIA,
	SUSPEND_NOSAVE,
	SUSPEND_INTEGRITY
};

/* excerpts from include/linux/bitops.h */
/*
 * fls: find last bit set.
 */

static __inline__ int generic_fls(int x)
{
	int r = 32;

	if (!x)
		return 0;
	if (!(x & 0xffff0000u)) {
		x <<= 16;
		r -= 16;
	}
	if (!(x & 0xff000000u)) {
		x <<= 8;
		r -= 8;
	}
	if (!(x & 0xf0000000u)) {
		x <<= 4;
		r -= 4;
	}
	if (!(x & 0xc0000000u)) {
		x <<= 2;
		r -= 2;
	}
	if (!(x & 0x80000000u)) {
		x <<= 1;
		r -= 1;
	}
	return r;
}

/*
 * Work around random glibc bugs where getpid() caches an invalid pid.
 */
#define xgetpid() syscall(SYS_getpid)

#endif /* _USERUI_H_ */