usb_jtag.patch

网上流传的usb_blaster原理图里的CPLD源码,主要是实现usb时序转换成JATG时序输出！

Index: include/cable.h
===================================================================
--- include/cable.h	(.../vendor/openwince)	(Revision 49)
+++ include/cable.h	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -45,6 +45,7 @@
 	void (*done)( cable_t * );
 	void (*clock)( cable_t *, int, int );
 	int (*get_tdo)( cable_t * );
+	int (*transfer)( cable_t *, int, char *, char * );
 	int (*set_trst)( cable_t *, int );
 	int (*get_trst)( cable_t * );
 };
@@ -63,6 +64,7 @@
 int cable_get_tdo( cable_t *cable );
 int cable_set_trst( cable_t *cable, int trst );
 int cable_get_trst( cable_t *cable );
+int cable_transfer( cable_t *cable, int len, char *in, char *out );
 
 extern uint32_t frequency;
 void cable_wait( void );
Index: src/cmd/cable.c
===================================================================
--- src/cmd/cable.c	(.../vendor/openwince)	(Revision 49)
+++ src/cmd/cable.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -85,15 +85,19 @@
 	printf( _(
 		"Usage: %s PORTADDR CABLE\n"
 		"Usage: %s DEV CABLE\n"
+		"Usage: %s VID:PID:S/N CABLE\n"
 		"Select JTAG cable connected to parallel port.\n"
 		"\n"
 		"PORTADDR   parallel port address (e.g. 0x378)\n"
 		"CABLE      cable type\n"
 		"DEV        ppdev device (e.g. /dev/parport0)\n"
+		"VID        empty or USB vendor ID, hex (e.g. 09FB)\n"
+		"PID        empty or USB product ID, hex (e.g. 6001)\n"
+		"S/N        empty or USB product serial number, ASCII\n"
 		"\n"
 		"List of supported cables:\n"
 		"%-13s No cable connected\n"
-	), "cable parallel", "cable ppdev", "none" );
+	), "cable parallel", "cable ppdev", "cable ftdi", "none" );
 
 	for (i = 0; cable_drivers[i]; i++)
 		printf( _("%-13s %s\n"), cable_drivers[i]->name, _(cable_drivers[i]->description) );
Index: src/tap/tap.c
===================================================================
--- src/tap/tap.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/tap.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -56,11 +56,22 @@
 	/* Capture-DR, Capture-IR, Shift-DR, Shift-IR, Exit2-DR or Exit2-IR state */
 	if (tap_state( chain ) & TAPSTAT_CAPTURE)
 		chain_clock( chain, 0, 0 );	/* save last TDO bit :-) */
-	for (i = 0; i < in->len; i++) {
+
+	i = in->len;
+	if(exit) i--;
+	if(out && out->len < i) i = out->len;
+
+	if(out)
+		cable_transfer( chain->cable, i, in->data, out->data );
+	else
+		cable_transfer( chain->cable, i, in->data, NULL );
+
+	for (; i < in->len; i++) {
 		if (out && (i < out->len))
 			out->data[i] = cable_get_tdo( chain->cable );
 		chain_clock( chain, (exit && ((i + 1) == in->len)) ? 1 : 0, in->data[i] );	/* Shift (& Exit1) */
 	}
+
 	/* Shift-DR, Shift-IR, Exit1-DR or Exit1-IR state */
 	if (exit) {
 		chain_clock( chain, 1, 0 );	/* Update-DR or Update-IR */
Index: src/tap/cable/ea253.c
===================================================================
--- src/tap/cable/ea253.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/ea253.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -105,6 +105,7 @@
 	generic_done,
 	ea253_clock,
 	ea253_get_tdo,
+	generic_transfer,
 	ea253_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/triton.c
===================================================================
--- src/tap/cable/triton.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/triton.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -116,6 +116,7 @@
 	generic_done,
 	triton_clock,
 	triton_get_tdo,
+	generic_transfer,
 	triton_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/byteblaster.c
===================================================================
--- src/tap/cable/byteblaster.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/byteblaster.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -131,6 +131,7 @@
 	generic_done,
 	byteblaster_clock,
 	byteblaster_get_tdo,
+	generic_transfer,
 	byteblaster_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/ei012.c
===================================================================
--- src/tap/cable/ei012.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/ei012.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -107,6 +107,7 @@
 	generic_done,
 	ei012_clock,
 	ei012_get_tdo,
+	generic_transfer,
 	ei012_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/wiggler.c
===================================================================
--- src/tap/cable/wiggler.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/wiggler.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -110,6 +110,7 @@
 	generic_done,
 	wiggler_clock,
 	wiggler_get_tdo,
+    generic_transfer,
 	wiggler_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/arcom.c
===================================================================
--- src/tap/cable/arcom.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/arcom.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -105,6 +105,7 @@
 	generic_done,
 	arcom_clock,
 	arcom_get_tdo,
+	generic_transfer,
 	arcom_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/generic.h
===================================================================
--- src/tap/cable/generic.h	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/generic.h	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -40,6 +40,7 @@
 void generic_disconnect( cable_t *cable );
 void generic_cable_free( cable_t *cable );
 void generic_done( cable_t *cable );
+int generic_transfer( cable_t *cable, int len, char *in, char *out );
 int generic_get_trst( cable_t *cable );
 
 #endif /* GENERIC_H */
Index: src/tap/cable/mpcbdm.c
===================================================================
--- src/tap/cable/mpcbdm.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/mpcbdm.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -111,6 +111,7 @@
 	generic_done,
 	mpcbdm_clock,
 	mpcbdm_get_tdo,
+	generic_transfer,
 	mpcbdm_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/keithkoep.c
===================================================================
--- src/tap/cable/keithkoep.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/keithkoep.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -114,6 +114,7 @@
 	generic_done,
 	keithkoep_clock,
 	keithkoep_get_tdo,
+	generic_transfer,
 	keithkoep_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/lattice.c
===================================================================
--- src/tap/cable/lattice.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/lattice.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -97,6 +97,7 @@
 	generic_done,
 	lattice_clock,
 	lattice_get_tdo,
+	generic_transfer,
 	lattice_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/usbblaster.c
===================================================================
--- src/tap/cable/usbblaster.c	(.../vendor/openwince)	(Revision 0)
+++ src/tap/cable/usbblaster.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -0,0 +1,163 @@
+/*
+ * $Id: usbblaster.c,v 1.8 2003/08/22 22:42:02 telka Exp $
+ *
+ * Altera USB-Blaster<tm> Cable Driver
+ * Copyright (C) 2006 K. Waschk
+ *
+ * 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 Kolja Waschk, 2006; http://www.ixo.de
+ *
+ */
+
+#include "sysdep.h"
+
+#include "cable.h"
+#include "parport.h"
+#include "chain.h"
+
+#include "generic.h"
+
+#define TCK    0
+#define TMS    1
+#define TDI    4
+#define READ   6
+#define SHMODE 7
+#define OTHERS ((1<<2)|(1<<3)|(1<<5))
+
+#define TDO    0
+
+static int
+usbblaster_init( cable_t *cable )
+{
+	int i;
+
+	if (parport_open( cable->port ))
+		return -1;
+
+	for(i=0;i<64;i++)
+		parport_set_data( cable->port, 0 );
+
+	parport_set_control( cable->port, 1 ); // flush
+	parport_set_control( cable->port, 0 ); // noflush
+
+	return 0;
+}
+
+static void
+usbblaster_clock( cable_t *cable, int tms, int tdi )
+{
+	tms = tms ? 1 : 0;
+	tdi = tdi ? 1 : 0;
+
+	parport_set_data( cable->port, OTHERS | (0 << TCK) | (tms << TMS) | (tdi << TDI) );
+	parport_set_data( cable->port, OTHERS | (1 << TCK) | (tms << TMS) | (tdi << TDI) );
+	parport_set_control( cable->port, 1 ); // flush
+	parport_set_control( cable->port, 0 ); // noflush
+}
+
+static int
+usbblaster_get_tdo( cable_t *cable )
+{
+	parport_set_control( cable->port, 0 ); // noflush
+	parport_set_data( cable->port, OTHERS ); /* TCK low */
+	parport_set_data( cable->port, OTHERS | (1 << READ) ); /* TCK low */
+	parport_set_control( cable->port, 1 ); // flush
+	parport_set_control( cable->port, 0 ); // noflush
+	return ( parport_get_data( cable->port ) & (1 << TDO)) ? 1 : 0;
+}
+
+static int
+usbblaster_set_trst( cable_t *cable, int trst )
+{
+	return 1;
+}
+
+static int
+usbblaster_transfer( cable_t *cable, int len, char *in, char *out )
+{
+	int in_offset = 0;
+	int out_offset = 0;
+	parport_set_control( cable->port, 0 );
+	parport_set_data( cable->port, OTHERS ); /* TCK low */
+
+	while(len - in_offset >= 8)
+	{
+		int i;
+		int chunkbytes = ((len-in_offset)>>3);
+		if(chunkbytes > 63) chunkbytes = 63;
+
+		if(out)
+			parport_set_data( cable->port,(1<<SHMODE)|(1<<READ)|chunkbytes);
+		else
+			parport_set_data( cable->port,(1<<SHMODE)|(0<<READ)|chunkbytes);
+
+		for(i=0; i<chunkbytes; i++)
+		{
+			int j;
+			unsigned char b = 0;
+			for(j=1; j<256; j<<=1) if(in[in_offset++]) b |= j;
+			parport_set_data( cable->port, b );
+		};
+
+		if(out) 
+		{
+			parport_set_control( cable->port, 1 ); // flush
+			parport_set_control( cable->port, 0 ); 
+
+			for(i=0; i<chunkbytes; i++)
+			{
+				int j;
+				unsigned char b = parport_get_data( cable->port );
+				for(j=1; j<256; j<<=1) out[out_offset++] = (b & j) ? 1:0;
+			};
+		};
+	};
+
+	while(len > in_offset)
+	{
+		char tdi = in[in_offset++] ? 1 : 0;
+		parport_set_data( cable->port, OTHERS ); /* TCK low */
+		if(out) parport_set_data( cable->port, OTHERS | (1 << READ) | (tdi << TDI)); 
+		parport_set_data( cable->port, OTHERS | (1 << TCK)  | (tdi << TDI));
+	}
+
+	if(out)
+	{
+		parport_set_control( cable->port, 1 ); // flush
+		parport_set_control( cable->port, 0 );
+
+		while(len > out_offset)
+			out[out_offset++] = ( parport_get_data( cable->port ) & (1 << TDO)) ? 1 : 0;
+	}
+
+	return 0;
+}
+
+cable_driver_t usbblaster_cable_driver = {
+	"UsbBlaster",
+	N_("Altera USB-Blaster Cable"),
+	generic_connect,
+	generic_disconnect,
+	generic_cable_free,
+	usbblaster_init,
+	generic_done,
+	usbblaster_clock,
+	usbblaster_get_tdo,
+	usbblaster_transfer,
+	usbblaster_set_trst,
+	generic_get_trst
+};
Index: src/tap/cable/dlc5.c
===================================================================
--- src/tap/cable/dlc5.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/dlc5.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -102,6 +102,7 @@
 	generic_done,
 	dlc5_clock,
 	dlc5_get_tdo,
+	generic_transfer,
 	dlc5_set_trst,
 	generic_get_trst
 };
Index: src/tap/cable/generic.c
===================================================================
--- src/tap/cable/generic.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable/generic.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -71,6 +71,24 @@
 }
 
 int
+generic_transfer( cable_t *cable, int len, char *in, char *out )
+{
+	int i;
+
+	if(out)
+		for(i=0; i<len; i++) {
+			out[i] = cable_get_tdo( cable );
+			cable_clock( cable, 0, in[i] );
+		}
+	else
+		for(i=0; i<len; i++) {
+			cable_clock( cable, 0, in[i] );
+		}
+
+	return i;
+}
+
+int
 generic_get_trst( cable_t *cable )
 {
 	return PARAM_TRST(cable);
Index: src/tap/cable.c
===================================================================
--- src/tap/cable.c	(.../vendor/openwince)	(Revision 49)
+++ src/tap/cable.c	(.../branches/openwince-usb_jtag)	(Revision 49)
@@ -33,6 +33,7 @@
 
 extern cable_driver_t arcom_cable_driver;
 extern cable_driver_t byteblaster_cable_driver;
+extern cable_driver_t usbblaster_cable_driver;
 extern cable_driver_t dlc5_cable_driver;
 extern cable_driver_t ea253_cable_driver;
 extern cable_driver_t ei012_cable_driver;
@@ -47,6 +48,7 @@
 cable_driver_t *cable_drivers[] = {
 	&arcom_cable_driver,
 	&byteblaster_cable_driver,
+	&usbblaster_cable_driver,
 	&dlc5_cable_driver,
 	&ea253_cable_driver,
 	&ei012_cable_driver,
@@ -100,6 +102,14 @@
 	return cable->driver->get_trst( cable );
 }
 
+int
+cable_transfer( cable_t *cable, int len,  char *in, char *out )
+{
+	int r;
+	r=cable->driver->transfer( cable, len, in, out );
+	return r;
+}