2003-04-01 Marcel Telka <marcel@telka.sk>

* src/tap/cable/keithkoep.c: New file.
	* src/tap/Makefile.am (libtap_a_SOURCES): Added cable/keithkoep.c.
	* src/tap/cable.c (cable_drivers): Added keithkoep_cable_driver.


git-svn-id: https://urjtag.svn.sourceforge.net/svnroot/urjtag/trunk@411 b68d4a1b-bc3d-0410-92ed-d4ac073336b7

jtag/ChangeLog

@@ -1,3 +1,9 @@
+2003-04-01  Marcel Telka  <marcel@telka.sk>
+
+	* src/tap/cable/keithkoep.c: New file.
+	* src/tap/Makefile.am (libtap_a_SOURCES): Added cable/keithkoep.c.
+	* src/tap/cable.c (cable_drivers): Added keithkoep_cable_driver.
+
 2003-03-19  Marcel Telka  <marcel@telka.sk>
 
 	Version 0.3.1 released.

jtag/NEWS

@@ -1,5 +1,7 @@
 $Id$
 
+	* Added driver for Keith & Koep JTAG Cable.
+
 jtag-0.3.1 (2003-03-19):
 
 	* Added support for Intel PXA255 A0 (thanks to Mike Sprauve).

jtag/README

@@ -40,6 +40,7 @@ JTAG adapters/cables (see 'help cable' command for more info):
 - Xilinx DLC5 JTAG Parallel Cable III
 - ETC EA253 JTAG Cable
 - ETC EI012 JTAG Cable
+- Keith & Koep JTAG Cable
 - Mpcbdm JTAG Cable
 - Macraigor Wiggler JTAG Cable
 

jtag/src/tap/Makefile.am

@@ -39,5 +39,6 @@ libtap_a_SOURCES = \
 	cable/dlc5.c \
 	cable/ea253.c \
 	cable/ei012.c \
+	cable/keithkoep.c \
 	cable/mpcbdm.c \
 	cable/wiggler.c

jtag/src/tap/cable.c

@@ -38,6 +38,7 @@ extern cable_driver_t byteblaster_cable_driver;
 extern cable_driver_t dlc5_cable_driver;
 extern cable_driver_t ea253_cable_driver;
 extern cable_driver_t ei012_cable_driver;
+extern cable_driver_t keithkoep_cable_driver;
 extern cable_driver_t mpcbdm_cable_driver;
 extern cable_driver_t wiggler_cable_driver;
 
@@ -49,6 +50,7 @@ cable_driver_t *cable_drivers[] = {
 	&dlc5_cable_driver,
 	&ea253_cable_driver,
 	&ei012_cable_driver,
+	&keithkoep_cable_driver,
 	&mpcbdm_cable_driver,
 	&wiggler_cable_driver,
 	NULL				/* last must be NULL */

jtag/src/tap/cable/keithkoep.c

@@ -0,0 +1,113 @@
+/*
+ * $Id$
+ *
+ * Keith & Koep 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.
+ *
+ * Documentation:
+ * [1] ftp://www.keith-koep.com/pub/arm-tools/jtag/jtag05_sch.pdf
+ *
+ */
+
+#include "cable.h"
+#include "parport.h"
+#include "chain.h"
+
+#include "generic.h"
+
+
+/*
+ * data D[7:0] (pins 9:2)
+ */
+#define	TDI	0
+#define	TCK	1
+#define	TMS	2
+
+/*
+ * 7 - BUSY (pin 11)
+ * 6 - ACK (pin 10)
+ * 5 - PE (pin 12)
+ * 4 - SEL (pin 13)
+ * 3 - ERROR (pin 15)
+ */
+#define	TDO	5
+
+/* 
+ * 0 - STROBE (pin 1)
+ * 1 - AUTOFD (pin 14)
+ * 2 - INIT (pin 16)
+ * 3 - SELIN (pin 17)
+ */
+#define	TRST	0
+
+static int
+keithkoep_init( cable_t *cable )
+{
+	if (parport_open( cable->port ))
+		return -1;
+
+	parport_set_control( cable->port, 1 << TRST );
+	PARAM_TRST(cable) = 1;
+
+	return 0;
+}
+
+static void
+keithkoep_clock( cable_t *cable, int tms, int tdi )
+{
+	tms = tms ? 1 : 0;
+	tdi = tdi ? 1 : 0;
+
+	parport_set_data( cable->port, (0 << TCK) | (tms << TMS) | (tdi << TDI) );
+	cable_wait();
+	parport_set_data( cable->port, (1 << TCK) | (tms << TMS) | (tdi << TDI) );
+	cable_wait();
+}
+
+static int
+keithkoep_get_tdo( cable_t *cable )
+{
+	parport_set_data( cable->port, 0 << TCK );
+	cable_wait();
+	return (parport_get_status( cable->port ) >> TDO) & 1;
+}
+
+static int
+keithkoep_set_trst( cable_t *cable, int trst )
+{
+	PARAM_TRST(cable) = trst ? 1 : 0;
+
+	parport_set_control( cable->port, PARAM_TRST(cable) << TRST );
+	return PARAM_TRST(cable);
+}
+
+cable_driver_t keithkoep_cable_driver = {
+	"KeithKoep",
+	"Keith & Koep JTAG cable",
+	generic_connect,
+	generic_disconnect,
+	generic_cable_free,
+	keithkoep_init,
+	generic_done,
+	keithkoep_clock,
+	keithkoep_get_tdo,
+	keithkoep_set_trst,
+	generic_get_trst
+};