2003-02-07 Marcel Telka <marcel@telka.sk>

* src/tap/cable/arcom.c: Added support for Arcom JTAG Cable (patch 682310,
		Ian Campbell).
	* src/tap/cable.c: Ditto.
	* src/tap/Makefile.am: Ditto.


git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@338 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

jtag/ChangeLog

@@ -1,3 +1,10 @@
+2003-02-07  Marcel Telka  <marcel@telka.sk>
+
+	* src/tap/cable/arcom.c: Added support for Arcom JTAG Cable (patch 682310,
+		Ian Campbell).
+	* src/tap/cable.c: Ditto.
+	* src/tap/Makefile.am: Ditto.
+
 2003-02-07  Marcel Telka  <marcel@telka.sk>
 
 	* src/tap/cable/mpcbdm.c (mpcbdm_clock): Fixed port address for TRST & TRST1.

jtag/NEWS

@@ -3,6 +3,7 @@ $Id$
 	* Enhanced 'dr' command functionality.
 	* Added new 'set signal' command.
 	* Added support for Mpcbdm JTAG Cable (Christian Pellegrin).
+	* Added support for Arcom JTAG Cable (patch 682310, Ian Campbell).
 
 jtag-0.2.2 (2003-02-04):
 

jtag/README

@@ -35,10 +35,12 @@ Supported hardware
 ------------------
 
 JTAG adapters/cables (see 'help cable' command for more info):
+- Arcom JTAG Cable
 - Altera ByteBlaster/ByteBlaster II/ByteBlasterMV Parallel Port Download Cable
 - Xilinx DLC5 JTAG Parallel Cable III
 - ETC EA253 JTAG Cable
 - ETC EI012 JTAG Cable
+- Mpcbdm JTAG Cable
 - Macraigor Wiggler JTAG Cable
 
 JTAG-aware parts (chips):

jtag/THANKS

@@ -4,3 +4,4 @@ Holger Schurig
 Stas Khirman
 Chris Ellec
 Christian Pellegrin
+Ian Campbell

jtag/src/tap/Makefile.am

@@ -28,6 +28,7 @@ libtap_a_SOURCES = \
 	register.c \
 	state.c \
 	cable.c \
+	cable/arcom.c \
 	cable/byteblaster.c \
 	cable/dlc5.c \
 	cable/ea253.c \

jtag/src/tap/cable.c

@@ -28,6 +28,7 @@
 
 #include "cable.h"
 
+extern cable_driver_t arcom_cable_driver;
 extern cable_driver_t byteblaster_cable_driver;
 extern cable_driver_t dlc5_cable_driver;
 extern cable_driver_t ea253_cable_driver;
@@ -38,6 +39,7 @@ extern cable_driver_t wiggler_cable_driver;
 uint32_t frequency = 0;
 
 cable_driver_t *cable_drivers[] = {
+	&arcom_cable_driver,
 	&byteblaster_cable_driver,
 	&dlc5_cable_driver,
 	&ea253_cable_driver,

jtag/src/tap/cable/arcom.c

@@ -0,0 +1,112 @@
+/*
+ * $Id$
+ *
+ * Arcom JTAG Cable Driver
+ * Copyright (C) 2002, 2003 ETC s.r.o.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by Marcel Telka <marcel@telka.sk>, 2002, 2003.
+ *
+ */
+
+#include <sys/io.h>
+
+#include "cable.h"
+#include "state.h"
+
+/*
+ * data D[7:0] (pins 9:2)
+ */
+#define	TDI	1
+#define	TCK	0
+#define	TMS	2
+#define	TRST	3
+
+/*
+ * 7 - BUSY (pin 11)
+ * 6 - ACK (pin 10)
+ * 5 - PE (pin 12)
+ * 4 - SEL (pin 13)
+ * 3 - ERROR (pin 15)
+ */
+#define	TDO 	7	
+
+static unsigned int port;
+
+static int
+arcom_init( unsigned int aport )
+{
+	tap_state_init();
+	port = aport;
+	if (((port + 2 <= 0x400) && ioperm( port, 2, 1 )) || ((port + 2 > 0x400) && iopl( 3 )))
+		return 0;
+	tap_state_set_trst( (inb( port ) >> TRST) & 1 );
+
+	return 1;
+}
+
+static void
+arcom_done( void )
+{
+	if (port + 2 <= 0x400)
+		ioperm( port, 2, 0 );
+	else
+		iopl( 0 );
+
+	tap_state_done();
+}
+
+static void
+arcom_clock( int tms, int tdi )
+{
+	int trst = tap_state_get_trst();
+
+	tms &= 1;
+	tdi &= 1;
+
+	outb( (trst << TRST) | (0 << TCK) | (tms << TMS) | (tdi << TDI), port );
+	cable_wait();
+	outb( (trst << TRST) | (1 << TCK) | (tms << TMS) | (tdi << TDI), port );
+	cable_wait();
+
+	tap_state_clock( tms );
+}
+
+static int
+arcom_get_tdo( void )
+{
+	outb( (tap_state_get_trst() << TRST) | (0 << TCK), port );
+	cable_wait();
+	return ((inb( port + 1 ) ^ 0x80) >> TDO) & 1;		/* BUSY is inverted */
+}
+
+static void
+arcom_set_trst( int new_trst )
+{
+	tap_state_set_trst( new_trst );
+	outb( (new_trst & 1) << TRST, port );
+}
+
+cable_driver_t arcom_cable_driver = {
+	"ARCOM",
+	"Arcom JTAG Cable",
+	arcom_init,
+	arcom_done,
+	arcom_clock,
+	arcom_get_tdo,
+	arcom_set_trst
+};