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/* 
 * tapctrl.h : the head file for tapctrl.c 
 *  
 * Copyright (C) 2004, OPEN-JTAG, All rights reserved. 
 */ 
 
#ifndef XJTAG_TAPCTRL_H 
#define XJTAG_TAPCTRL_H 
 
 
#include "types.h" 
#include "jtag.h" 
 
 
/* Public JTAG Instructions */ 
#define JTAG_EXTEST 			0x0 
#define JTAG_SCAN_N				0x2 
#define JTAG_SAMPLE_PRELOAD		0x3 	 
#define JTAG_RESTART			0x4 
#define JTAG_CLAMP				0x5 
#define JTAG_HIGHZ				0x7 
#define JTAG_CLAMPZ				0x9 
#define JTAG_INTEST				0xC 
#define JTAG_IDCODE				0xE 
#define JTAG_BYPASS				0xF	 
 
 
/* TAP Controller State Transitions*/ 
#define NUM_OF_STATES				0x10		//16 TAP States 
#define TAPSTAT_UNDEFINED			0xFF 
 
#define TAPSTAT_TSTLOG_RST			0xF 
#define TAPSTAT_RUNTEST_IDLE		0xC 
#define TAPSTAT_SELECT_DR_SCAN		0x7 
#define TAPSTAT_CAPTURE_DR			0x6 
#define TAPSTAT_SHIFT_DR			0x2	 
#define TAPSTAT_EXIT1_DR			0x1 
#define TAPSTAT_PAUSE_DR			0x3 
#define TAPSTAT_EXIT2_DR			0x0 
#define TAPSTAT_UPDATE_DR			0x5 
#define TAPSTAT_SELECT_IR_SCAN		0x4 
#define TAPSTAT_CAPTURE_IR			0xE 
#define TAPSTAT_SHIFT_IR			0xA 
#define TAPSTAT_EXIT1_IR			0x9 
#define TAPSTAT_PAUSE_IR			0xB 
#define TAPSTAT_EXIT2_IR			0x8 
#define TAPSTAT_UPDATE_IR			0xD 
 
 
typedef struct tap_state{ 
	int next_state[2]; 
} tap_state_t; 
 
 
extern int tapctrl_init(void); 
extern int tapctrl_reset(void); 
extern int tapctrl_runtest(void); 
extern int tapctrl_acs_ireg(u32 instruction); 
extern int tapctrl_acs_dreg(int bit_len, const u32 *shift_in, u32 *shift_out); 
 
 
#endif 
/* end of tapctrl.h */