#ifndef __avm_watch_h__
#define __avm_watch_h__

#if defined(CONFIG_AVM_WP)
/**--------------------------------------------------------------------------------**\
 * ret: 1 -> handled
 *      0 -> use ptrace-watchpoint interface
\**--------------------------------------------------------------------------------**/
int avm_wp_dispatcher(struct pt_regs *regs);

/**--------------------------------------------------------------------------------**\
\**--------------------------------------------------------------------------------**/
enum _wp_type {
    wp_type_write       = (1 << 0),
    wp_type_read        = (1 << 1),
    wp_type_instruction = (1 << 2)
};
/**--------------------------------------------------------------------------------**\
 * ref:      ref for wp_handler
 * watch_nr: interaptiv 0-3
 * addr:     watchpoint-addr (double-word)
 * mask:     Bit 11 - 3: bits which ignored on addr (watch-area)
 * type:     interaptiv: 0/1 wp_type_read/wp_type_write 
 *                       3/4 instruction
 * cpu_mask: mask of cpu-settings
 *
 * ret-param of wp_handler: ret= 1: retrigger watchpoint
\**--------------------------------------------------------------------------------**/
int set_watchpoint_handler(void *ref, int watch_nr, unsigned long addr, unsigned long mask, enum _wp_type type, 
                           int (*wp_handler)(void *ref, enum _wp_type status, int deferred,struct pt_regs *),
                           const cpumask_t *cpu_mask);
/**--------------------------------------------------------------------------------**\
 * use default-watchpointhandler 
 * cpu_id >= NR_CPUS : all cpus
\**--------------------------------------------------------------------------------**/
int set_watchpoint(int watch_nr, unsigned long addr, int mask, enum _wp_type type, int cpu_id);

/**--------------------------------------------------------------------------------**\
\**--------------------------------------------------------------------------------**/
void del_watchpoint(int watch_nr, int cpu_id);


/**--------------------------------------------------------------------------------**\
 * nur fuer aktuelle CPU!
\**--------------------------------------------------------------------------------**/
int watchpoint_busy(int watch_nr);
#endif
#endif/*--- #ifndef __avm_watch_h__ ---*/