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counter.h

#ifndef COUNTERH
#define COUNTERH

/*counter.h
12/12/02

Nathan Z. Gustavson
ngustavson@emacinc.com
Emac.inc
www.emacinc.com

*/




#include <sys/types.h>
#include <asm/types.h>
#include <coprocessor.h>

typedef void (*CountHander)(int, void *);

/*IC modes*/
#define NOE   0

#define RISEE 1

#define FALLE 2

#define ANYE 3


/*ioctl counter command codes
these codes are used by E12_CountCommand to send commands to counters.
The counters must be configured by E12_CountConfig before these will have any effect
*/
#define ICSTART     0

#define ICSTOP      1

#define ICNOTIFYON  2

#define ICNOTIFYOFF     3

#define NULLCOMMAND     4


/*configuration flags
These are bits to set in the flag variable passed to E12_CountConfig. They define
certain characteristics of the counter
*/
#define ANOTE 1

#define AUTOLOAD 2

#define AUTOSTOP 4

#define NOTIFYRESPONSE BITMASK(ICNOTIFY)
#define COUNTRESPONSE BITMASK(COUNTER)


int E12_CountConfig(int fd, int counter, int trigger, int threshold,int flags,Cop_Data *Cop);

int E12_CounterCalcFreq(int counter, Cop_Data *Cop);

int E12_CounterLoad(int fd, int counter, int data, Cop_Data *Cop);

int E12_CounterReadRQ(int fd, int counter);

int E12_CountCommand(int fd, int counter,int command);

int E12_CountCfg_Req(int fd, int counter);

int UpdatetHardwareCounterInfo(int fd, Cop_Data *Cop);

#endif

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