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	Package:	GAEM
	Version:	V2-1-2	Marked:	(not marked)
	Constituent:	gaem	Tag:	sun-gcc

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gACD.c File Reference

Implements command/response for off board ACD modules. More...

#include <string.h>
#include "ga_p.h"
#include "gAEM_p.h"
#include "gACD_p.h"

Functions
void	setAEMextAD (gaemHandle ga, unsigned short type, unsigned short addr, unsigned short func, unsigned short opcode, unsigned short value, aemExtAD *ad)
void	packPayloadACD (gaemHandle ga, cmdHeaderLATp ch, aemExtAD ad, unsigned int *payload)
	Packs ch and ad into the 64-bit payload.
int	__ACDcmd (gaemHandle ga, unsigned short type, unsigned short garcAddr, unsigned short funcBlock, unsigned short func, unsigned short funcOpcode, unsigned int value)
	Generic routine for sending response-less commands to GARC.
int	__ACDread (gaemHandle ga, unsigned short type, unsigned short garcAddr, unsigned short funcBlock, unsigned short func, unsigned short funcOpcode, unsigned int *value)
	Generic routine for reading GARC/GAFE registers.

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Detailed Description

Implements command/response for off board ACD modules.

Author:

Curt Brune -- curt@slac.stanford.edu

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Function Documentation

int __ACDcmd (  gaemHandle  ga, unsigned short  type, unsigned short  garcAddr, unsigned short  funcBlock, unsigned short  func, unsigned short  funcOpcode, unsigned int  value )

Generic routine for sending response-less commands to GARC. Parameters: ga  gaemHandle for AEM type  single bit indicating GARC/GAFE garcAddr  GARC address of command funcBlock  GARC function block code func  command/response function code funcOpcode  fucntion opcode for GARC function block value  16-bit value to load into GARC register Returns: G_OK on success Common subroutine for sending dataless commands and loading GARC registers. The func parameter indicates a "dataless" or "load" command.

int __ACDread (  gaemHandle  ga, unsigned short  type, unsigned short  garcAddr, unsigned short  funcBlock, unsigned short  func, unsigned short  funcOpcode, unsigned int *  value )

Generic routine for reading GARC/GAFE registers. Parameters: ga  gaemHandle for AEM type  single bit indicating GARC/GAFE garcAddr  GARC address of command funcBlock  GARC function block code func  command/response function code funcOpcode  fucntion opcode for GARC function block value  pointer to hold 16-bit register value Returns: G_OK on success Common subroutine for reading GARC/GAFE registers.

void packPayloadACD (  gaemHandle  ga, cmdHeaderLATp  ch, aemExtAD  ad, unsigned int *  payload )

Packs ch and ad into the 64-bit payload. Parameters: ga  gaemHandle for AEM ch  9-bit command header word (in MSB) ad  32-bit external access descriptor word payload  pointer to 64-bits of pre-allocated storage Returns: void Packs the bits of ch and ad into the 64-bits pointed to by payload. The packing is specific to external "off board" registers for the GARC and GAFE. The format of the bits goes as: 9 bit AEM command header + 1 start bit + 32 bit ext AD + 1 command parity bit

void setAEMextAD (  gaemHandle  ga, unsigned short  type, unsigned short  addr, unsigned short  func, unsigned short  opcode, unsigned short  value, aemExtAD *  ad )

Parameters: ga  GAEM driver handle previously allocated type  single bit indicating GARC/GAFE addr  GARC function block or GAFE address func  read, write or dataless command opcode  GARC function code or GAFE register value  16-bit payload for write commands ad  pointer to storage for access descriptor Returns: void

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