arch/arm/plat-feroceon/mv_drivers_lsp/mv_tpm/core/tpm_cpu_port_fc.h

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******************************************************************************/
/*******************************************************************************
* tpm_ctc_cm.h
*
* DESCRIPTION:
*               header file for tpm_cpu_port_fc.c
*
* DEPENDENCIES:
*               None
*
* CREATED BY:   KostaP
*
* DATE CREATED: 6 June 2012
*
* FILE REVISION NUMBER:
*               Revision: 1.1
*
*
*******************************************************************************/
#ifndef _TPM_CPU_PORT_FC_H_
#define _TPM_CPU_PORT_FC_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <linux/hrtimer.h>
#include <linux/ktime.h>

/*************************************************************/
/*               ENUMERATIONS                                */
/*************************************************************/

/*************************************************************/
/*               DEFINITIONS                                 */
/*************************************************************/
#define TPM_FC_MAGIC_NUMBER		0xFCFACED
#define TPM_FC_DEBUG

typedef struct tpm_fc_cfg_t_ {
	MV_U32   thresh_high;
	MV_U32   thresh_low;
	MV_U32   port;
	MV_U32   tgt_port;
	MV_BOOL  tgt_port_changed;
	MV_U32   tx_port;
	MV_U32   tx_queue;
	ktime_t  hrt_hit_time;
	ktime_t  hrt_hit_time_delay;
	MV_U32   oneshot_count;

} tpm_fc_cfg_t;

#ifdef  TPM_FC_DEBUG
typedef struct tpm_fc_stat_t_ {
	MV_U32   hrt_hits_num;
	MV_U32   hrt_lost_num;
	MV_U32   hrt_wraparound;
	s64      hrt_lost_max_ns;
	s64      hrt_lost_200_up;  /* timer slips 200% and more than set time */
	s64      hrt_lost_150_200; /* timer slips 150%-200% out of set time */
	s64      hrt_lost_100_150; /* timer slips 100%-150% out of set time */
	s64      hrt_lost_50_100;  /* timer slips 50%-100% out of set time */
	s64      hrt_lost_25_50;   /* timer slips 25%-50% out of set time */
	s64      hrt_lost_25_less; /* timer slips less than 25% out of set time */
} tpm_fc_stat_t;
#endif

typedef struct tpm_fc_info_t_ {
	tpm_fc_cfg_t    cfg;
	MV_U32          magic;
	struct hrtimer  hr_timer;
	ktime_t  	hrt_last_hit;
#ifdef  TPM_FC_DEBUG
	tpm_fc_stat_t   stat;
	tpm_fc_stat_t   oneshot_stat;
	ktime_t  	oneshot_hrt_last_hit;
	MV_U32      	pre_stat_cnt;
#endif	
} tpm_fc_info_t;

/*******************************************************************************
**
**  tpm_fc_set_period
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function configure Rate limiting parameters
**
**  PARAMETERS:  MV_U32 us_period
**
**  OUTPUTS:     none
**
**  RETURNS:     void
**
*******************************************************************************/
MV_STATUS tpm_fc_set_period(MV_U32 us_period);

/*******************************************************************************
**
**  tpm_fc_set_config
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function configure Rate limiting parameters
**
**  PARAMETERS:  tpm_fc_cfg_t  *cf
**
**  OUTPUTS:     none
**
**  RETURNS:     void
**
*******************************************************************************/
void tpm_fc_set_config(tpm_fc_cfg_t *cfg);

/*******************************************************************************
**
**  tpm_fc_set_oneshot
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function configure oneshot counter value
**
**  PARAMETERS:  MV_U32 oneshot
**
**  OUTPUTS:     none
**
**  RETURNS:     void
**
*******************************************************************************/
MV_STATUS tpm_fc_set_oneshot(MV_U32 oneshot);

/*******************************************************************************
**
**  tpm_fc_enable
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function configure oneshot counter value
**
**  PARAMETERS:  MV_U32 oneshot
**
**  OUTPUTS:     none
**
**  RETURNS:     void
**
*******************************************************************************/
MV_STATUS tpm_fc_enable(MV_BOOL enable);


/*******************************************************************************
**
**  tpm_fc_get_info
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function returns FC module configuration and statistics
**
**  PARAMETERS:  tpm_fc_info_t  **info
**
**  OUTPUTS:     none
**
**  RETURNS:     void
**
*******************************************************************************/
void tpm_fc_get_info(tpm_fc_info_t **info);

/*******************************************************************************
**
**  tpm_fc_clear_stat
**  ____________________________________________________________________________
**
**  DESCRIPTION: The function clears FC module  statistics
**
**  PARAMETERS:  none
**
**  OUTPUTS:     none
**
**  RETURNS:     void
**
*******************************************************************************/
void tpm_fc_clear_stat(void);

/*******************************************************************************
**
**  tpm_fc_engine_init
**  ____________________________________________________________________________
**
**  DESCRIPTION: Init fc engine
**
**  PARAMETERS:  none
**
**  OUTPUTS:     none
**
**  RETURNS:     MV_OK/MV_ERROR
**
*******************************************************************************/
MV_STATUS tpm_fc_engine_init(void);

/*******************************************************************************
**
**  tpm_fc_is_running
**  ____________________________________________________________________________
**
**  DESCRIPTION: Return the running status of FC engine
**
**  PARAMETERS:  None
**
**  OUTPUTS:     none
**
**  RETURNS:     MV_TRUE/MV_FALSE
**
*******************************************************************************/
MV_BOOL tpm_fc_is_running(void);


#ifdef __cplusplus
}
#endif
#endif    /* _TPM_CPU_PORT_FC_H_ */