A dummy driver to test codepath w/no contact w/target.

git-svn-id: svn://svn.berlios.de/openocd/trunk@572 b42882b7-edfa-0310-969c-e2dbd0fdcd60

diff --git a/configure.in b/configure.in
index ba70f997263870decf6607f34d06f384d0b8869c..ae35f555b643e9e883fcd0423db1b6da992d2fc4 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -30,6 +30,10 @@ AC_ARG_ENABLE(parport,
   AS_HELP_STRING([--enable-parport], [Enable building the pc parallel port driver]), 
   [build_parport=$enableval], [build_parport=no])
 
+AC_ARG_ENABLE(dummy,
+  AS_HELP_STRING([--enable-dummy], [Enable building the dummy port driver]), 
+  [build_dummy=$enableval], [build_dummy=no])
+  
 case "${host_cpu}" in 
   i?86|x86*)
     AC_ARG_ENABLE(parport_ppdev,
@@ -144,6 +148,14 @@ else
   AC_DEFINE(BUILD_PARPORT, 0, [0 if you don't want parport.])
 fi
 
+if test $build_dummy = yes; then
+  build_bitbang=yes
+  AC_DEFINE(BUILD_DUMMY, 1, [1 if you want dummy driver.])
+else
+  AC_DEFINE(BUILD_DUMMY, 0, [0 if you don't want dummy driver.])
+fi
+
+
 if test $build_ep93xx = yes; then
   build_bitbang=yes
   AC_DEFINE(BUILD_EP93XX, 1, [1 if you want ep93xx.])
@@ -243,6 +255,7 @@ AM_CONFIG_HEADER(config.h)
 AM_INIT_AUTOMAKE(openocd, 1.0)
 
 AM_CONDITIONAL(PARPORT, test $build_parport = yes)
+AM_CONDITIONAL(DUMMY, test $build_dummy = yes)
 AM_CONDITIONAL(GIVEIO, test $parport_use_giveio = yes)
 AM_CONDITIONAL(EP93XX, test $build_ep93xx = yes)
 AM_CONDITIONAL(ECOSBOARD, test $build_ecosboard = yes)

diff --git a/src/jtag/Makefile.am b/src/jtag/Makefile.am
index 04c06e2fadce43aa989afe2999be1cee3ad6683d..d37a91817b1ac5c8c67bd2055f83b3403f3be90b 100644 (file)
--- a/src/jtag/Makefile.am
+++ b/src/jtag/Makefile.am
@@ -25,6 +25,12 @@ else
 PARPORTFILES =
 endif
 
+if DUMMY
+DUMMYFILES = dummy.c
+else
+DUMMYFILES =
+endif
+
 if FT2232_LIBFTDI
 FT2232FILES = ft2232.c
 else
@@ -87,7 +93,7 @@ else
 USBPROGFILES =
 endif
 
-libjtag_a_SOURCES = jtag.c $(BITBANGFILES) $(PARPORTFILES) $(FT2232FILES) $(AMTJTAGACCELFILES) $(EP93XXFILES) \
+libjtag_a_SOURCES = jtag.c $(BITBANGFILES) $(PARPORTFILES) $(DUMMYFILES) $(FT2232FILES) $(AMTJTAGACCELFILES) $(EP93XXFILES) \
        $(AT91RM9200FILES) $(GW16012FILES) $(BITQFILES) $(PRESTOFILES) $(USBPROGFILES) $(ECOSBOARDFILES)
 
 noinst_HEADERS = bitbang.h jtag.h

diff --git a/src/jtag/dummy.c b/src/jtag/dummy.c
new file mode 100644 (file)
index 0000000..90c60db
--- /dev/null
+++ b/src/jtag/dummy.c
@@ -0,0 +1,105 @@
+/***************************************************************************\r
+ *   Copyright (C) 2008 by Øyvind Harboe                                   *\r
+ *   oyvind.harboe@zylin.com                                               *\r
+ *                                                                         *\r
+ *   This program is free software; you can redistribute it and/or modify  *\r
+ *   it under the terms of the GNU General Public License as published by  *\r
+ *   the Free Software Foundation; either version 2 of the License, or     *\r
+ *   (at your option) any later version.                                   *\r
+ *                                                                         *\r
+ *   This program is distributed in the hope that it will be useful,       *\r
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *\r
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *\r
+ *   GNU General Public License for more details.                          *\r
+ *                                                                         *\r
+ *   You should have received a copy of the GNU General Public License     *\r
+ *   along with this program; if not, write to the                         *\r
+ *   Free Software Foundation, Inc.,                                       *\r
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *\r
+ ***************************************************************************/\r
+#ifdef HAVE_CONFIG_H\r
+#include "config.h"\r
+#endif\r
+\r
+#include "replacements.h"\r
+\r
+#include "jtag.h"\r
+#include "bitbang.h"\r
+\r
+\r
+int dummy_speed(int speed);\r
+int dummy_register_commands(struct command_context_s *cmd_ctx);\r
+int dummy_init(void);\r
+int dummy_quit(void);\r
+\r
+/* The dummy driver is used to easily check the code path \r
+ * where the target is unresponsive.\r
+ */\r
+jtag_interface_t dummy_interface = \r
+{\r
+       .name = "dummy",\r
+       \r
+       .execute_queue = bitbang_execute_queue,\r
+\r
+       .speed = dummy_speed,   \r
+       .register_commands = dummy_register_commands,\r
+       .init = dummy_init,\r
+       .quit = dummy_quit,\r
+};\r
+\r
+int dummy_read(void);\r
+void dummy_write(int tck, int tms, int tdi);\r
+void dummy_reset(int trst, int srst);\r
+void dummy_led(int on);\r
+\r
+bitbang_interface_t dummy_bitbang =\r
+{\r
+       .read = dummy_read,\r
+       .write = dummy_write,\r
+       .reset = dummy_reset,\r
+       .blink = dummy_led\r
+};\r
+\r
+int dummy_read(void)\r
+{\r
+       return 1;\r
+}\r
+\r
+\r
+void dummy_write(int tck, int tms, int tdi)\r
+{\r
+}\r
+\r
+void dummy_reset(int trst, int srst)\r
+{\r
+}\r
+       \r
+\r
+int dummy_speed(int speed)\r
+{\r
+       return ERROR_OK;\r
+}\r
+\r
+int dummy_register_commands(struct command_context_s *cmd_ctx)\r
+{\r
+       return ERROR_OK;\r
+}\r
+\r
+\r
+int dummy_init(void)\r
+{\r
+       bitbang_interface = &dummy_bitbang;     \r
+\r
+       return ERROR_OK;\r
+}\r
+\r
+int dummy_quit(void)\r
+{\r
+       return ERROR_OK;\r
+}\r
+\r
+\r
+void dummy_led(int on)\r
+{\r
+}\r
+\r

diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c
index fe76a32213067e4510fa215e805e2b8256e77368..74f00900c0a77899a0e4d63151c27b62246c58bd 100644 (file)
--- a/src/jtag/jtag.c
+++ b/src/jtag/jtag.c
@@ -156,7 +156,11 @@ static int hasKHz = 0;
 #if BUILD_PARPORT == 1
        extern jtag_interface_t parport_interface;
 #endif
-
+        
+#if BUILD_DUMMY == 1
+       extern jtag_interface_t dummy_interface;
+#endif
+       
 #if BUILD_FT2232_FTD2XX == 1
        extern jtag_interface_t ft2232_interface;
 #endif
@@ -196,6 +200,9 @@ jtag_interface_t *jtag_interfaces[] = {
 #if BUILD_PARPORT == 1
        &parport_interface,
 #endif
+#if BUILD_DUMMY == 1
+       &dummy_interface,
+#endif
 #if BUILD_FT2232_FTD2XX == 1
        &ft2232_interface,
 #endif