From 7d244761461701e1161df32c2f1d4cd50ae2bb26 Mon Sep 17 00:00:00 2001
From: drath <drath@b42882b7-edfa-0310-969c-e2dbd0fdcd60>
Date: Tue, 1 Aug 2006 09:45:22 +0000
Subject: - allow building for MinGW using either -mno-cygwin or the MinGW gcc
 - added GiveIO support to the amt_jtagaccel driver - explicitly disable
 loopback mode for FT2232 devices - changed configuration options
 n[st]rst_delay to jtag_n[st]rst_delay - shutdown network services on exit

git-svn-id: svn://svn.berlios.de/openocd/trunk@80 b42882b7-edfa-0310-969c-e2dbd0fdcd60
---
 src/jtag/amt_jtagaccel.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++--
 src/jtag/ftd2xx.c        |  9 +++++++++
 src/jtag/jtag.c          |  8 ++++----
 3 files changed, 62 insertions(+), 6 deletions(-)

(limited to 'src/jtag')

diff --git a/src/jtag/amt_jtagaccel.c b/src/jtag/amt_jtagaccel.c
index 113aee66..d788728b 100644
--- a/src/jtag/amt_jtagaccel.c
+++ b/src/jtag/amt_jtagaccel.c
@@ -21,11 +21,18 @@
 #include "config.h"
 #endif
 
-#include "log.h"
+#include "replacements.h"
+
 #include "jtag.h"
 
 /* system includes */
+
+#ifndef _WIN32
 #include <sys/io.h>
+#else
+#include "errno.h"
+#endif /* _WIN32 */
+
 #include <string.h>
 #include <stdlib.h>
 
@@ -40,6 +47,16 @@
 #include <unistd.h>
 #endif
 
+#if PARPORT_USE_GIVEIO == 1
+#if IS_CYGWIN == 1
+#include <windows.h>
+#include <errno.h>
+#undef ERROR
+#endif
+#endif
+
+#include "log.h"
+
 /* configuration */
 unsigned long amt_jtagaccel_port;
 
@@ -382,6 +399,32 @@ int amt_jtagaccel_execute_queue(void)
 	return ERROR_OK;
 }
 
+#if PARPORT_USE_GIVEIO == 1
+int amt_jtagaccel_get_giveio_access()
+{
+    HANDLE h;
+    OSVERSIONINFO version;
+
+    version.dwOSVersionInfoSize = sizeof version;
+    if (!GetVersionEx( &version )) {
+        errno = EINVAL;
+        return -1;
+    }
+    if (version.dwPlatformId != VER_PLATFORM_WIN32_NT)
+        return 0;
+
+    h = CreateFile( "\\\\.\\giveio", GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
+    if (h == INVALID_HANDLE_VALUE) {
+        errno = ENODEV;
+        return -1;
+    }
+
+    CloseHandle( h );
+
+    return 0;
+}
+#endif
+
 int amt_jtagaccel_init(void)
 {
 #if PARPORT_USE_PPDEV == 1
@@ -435,8 +478,12 @@ int amt_jtagaccel_init(void)
 		amt_jtagaccel_port = 0x378;
 		WARNING("No parport port specified, using default '0x378' (LPT1)");
 	}
-	
+
+#if PARPORT_USE_GIVEIO == 1
+	if (amt_jtagaccel_get_giveio_access() != 0) {
+#else /* PARPORT_USE_GIVEIO */	
 	if (ioperm(amt_jtagaccel_port, 5, 1) != 0) {
+#endif /* PARPORT_USE_GIVEIO */
 		ERROR("missing privileges for direct i/o");
 		return ERROR_JTAG_INIT_FAILED;
 	}
diff --git a/src/jtag/ftd2xx.c b/src/jtag/ftd2xx.c
index e8d29a88..050f9c04 100644
--- a/src/jtag/ftd2xx.c
+++ b/src/jtag/ftd2xx.c
@@ -799,6 +799,8 @@ int ftd2xx_init(void)
 	u8 latency_timer;
 	FT_STATUS status;
 	DWORD num_devices;
+	u8 buf[1];
+	DWORD bytes_written;
 	
 	ftd2xx_layout_t *cur_layout = ftd2xx_layouts;
 	
@@ -900,6 +902,13 @@ int ftd2xx_init(void)
 		return ERROR_JTAG_INIT_FAILED;
 
 	ftd2xx_speed(jtag_speed);
+
+	buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
+	if (((status = FT_Write(ftdih, buf, 1, &bytes_written)) != FT_OK) || (bytes_written != 1))
+	{
+		ERROR("couldn't write to ftdi device: %i", status);
+		return ERROR_JTAG_INIT_FAILED;
+	}
 	
 	if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
 	{
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c
index b8846f17..7c6c911a 100644
--- a/src/jtag/jtag.c
+++ b/src/jtag/jtag.c
@@ -1147,9 +1147,9 @@ int jtag_register_commands(struct command_context_s *cmd_ctx)
 		COMMAND_CONFIG, NULL);
 	register_command(cmd_ctx, NULL, "reset_config", handle_reset_config_command,
 		COMMAND_CONFIG, NULL);
-	register_command(cmd_ctx, NULL, "nsrst_delay", handle_jtag_nsrst_delay_command,
+	register_command(cmd_ctx, NULL, "jtag_nsrst_delay", handle_jtag_nsrst_delay_command,
 		COMMAND_CONFIG, NULL);
-	register_command(cmd_ctx, NULL, "ntrst_delay", handle_jtag_ntrst_delay_command,
+	register_command(cmd_ctx, NULL, "jtag_ntrst_delay", handle_jtag_ntrst_delay_command,
 		COMMAND_CONFIG, NULL);
 		
 	register_command(cmd_ctx, NULL, "scan_chain", handle_scan_chain_command,
@@ -1375,7 +1375,7 @@ int handle_jtag_nsrst_delay_command(struct command_context_s *cmd_ctx, char *cmd
 {
 	if (argc < 1)
 	{
-		ERROR("nsrst_delay <ms> command takes one required argument");
+		ERROR("jtag_nsrst_delay <ms> command takes one required argument");
 		exit(-1);
 	}
 	else
@@ -1390,7 +1390,7 @@ int handle_jtag_ntrst_delay_command(struct command_context_s *cmd_ctx, char *cmd
 {
 	if (argc < 1)
 	{
-		ERROR("ntrst_delay <ms> command takes one required argument");
+		ERROR("jtag_ntrst_delay <ms> command takes one required argument");
 		exit(-1);
 	}
 	else
-- 
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