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3.1 KiB
C

/*
* $Id$
*
* Copyright (C) 2002 ETC s.r.o.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the ETC s.r.o. nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Written by Marcel Telka <marcel@telka.sk>, 2002.
*
*/
#ifndef JTAG_STATE_H
#define JTAG_STATE_H
#include <common.h>
#define TAPSTAT_DR bit(0)
#define TAPSTAT_IR bit(1)
#define TAPSTAT_SHIFT bit(2) /* register shift with TMS = 0 */
#define TAPSTAT_IDLE bit(3) /* to Run-Test/Idle with TMS = 0 */
#define TAPSTAT_CAPTURE bit(4) /* Capture state */
#define TAPSTAT_UPDATE bit(5) /* to Update with TMS = 1 */
#define TAPSTAT_PAUSE bit(6) /* to Pause with TMS = 0 */
#define TAPSTAT_RESET bit(7) /* Test-Logic-Reset or unknown state */
#define Unknown_State (TAPSTAT_RESET)
#define Test_Logic_Reset (TAPSTAT_RESET | TAPSTAT_IDLE)
#define Run_Test_Idle (TAPSTAT_IDLE)
#define Select_DR_Scan (TAPSTAT_DR)
#define Capture_DR (TAPSTAT_DR | TAPSTAT_SHIFT | TAPSTAT_CAPTURE)
#define Shift_DR (TAPSTAT_DR | TAPSTAT_SHIFT)
#define Exit1_DR (TAPSTAT_DR | TAPSTAT_UPDATE | TAPSTAT_PAUSE)
#define Pause_DR (TAPSTAT_DR | TAPSTAT_PAUSE)
#define Exit2_DR (TAPSTAT_DR | TAPSTAT_SHIFT | TAPSTAT_UPDATE)
#define Update_DR (TAPSTAT_DR | TAPSTAT_IDLE)
#define Select_IR_Scan (TAPSTAT_IR)
#define Capture_IR (TAPSTAT_IR | TAPSTAT_SHIFT | TAPSTAT_CAPTURE)
#define Shift_IR (TAPSTAT_IR | TAPSTAT_SHIFT)
#define Exit1_IR (TAPSTAT_IR | TAPSTAT_UPDATE | TAPSTAT_PAUSE)
#define Pause_IR (TAPSTAT_IR | TAPSTAT_PAUSE)
#define Exit2_IR (TAPSTAT_IR | TAPSTAT_SHIFT | TAPSTAT_UPDATE)
#define Update_IR (TAPSTAT_IR | TAPSTAT_IDLE)
int tap_state( void );
int tap_state_init( void );
int tap_state_done( void );
int tap_state_set_trst( int trst );
int tap_state_get_trst( void );
int tap_state_clock( int tms );
#endif /* JTAG_STATE_H */