From 7280d4a2c74f444e81d5a2df8b77a2f184f5e6d1 Mon Sep 17 00:00:00 2001 From: oharboe Date: Sun, 13 Apr 2008 13:21:49 +0000 Subject: [PATCH] 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 --- configure.in | 13 ++++++ src/jtag/Makefile.am | 8 +++- src/jtag/dummy.c | 105 +++++++++++++++++++++++++++++++++++++++++++ src/jtag/jtag.c | 9 +++- 4 files changed, 133 insertions(+), 2 deletions(-) create mode 100644 src/jtag/dummy.c diff --git a/configure.in b/configure.in index ba70f99726..ae35f555b6 100644 --- 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 04c06e2fad..d37a91817b 100644 --- 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 index 0000000000..90c60db8d7 --- /dev/null +++ b/src/jtag/dummy.c @@ -0,0 +1,105 @@ +/*************************************************************************** + * Copyright (C) 2008 by Øyvind Harboe * + * oyvind.harboe@zylin.com * + * * + * 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. * + ***************************************************************************/ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "replacements.h" + +#include "jtag.h" +#include "bitbang.h" + + +int dummy_speed(int speed); +int dummy_register_commands(struct command_context_s *cmd_ctx); +int dummy_init(void); +int dummy_quit(void); + +/* The dummy driver is used to easily check the code path + * where the target is unresponsive. + */ +jtag_interface_t dummy_interface = +{ + .name = "dummy", + + .execute_queue = bitbang_execute_queue, + + .speed = dummy_speed, + .register_commands = dummy_register_commands, + .init = dummy_init, + .quit = dummy_quit, +}; + +int dummy_read(void); +void dummy_write(int tck, int tms, int tdi); +void dummy_reset(int trst, int srst); +void dummy_led(int on); + +bitbang_interface_t dummy_bitbang = +{ + .read = dummy_read, + .write = dummy_write, + .reset = dummy_reset, + .blink = dummy_led +}; + +int dummy_read(void) +{ + return 1; +} + + +void dummy_write(int tck, int tms, int tdi) +{ +} + +void dummy_reset(int trst, int srst) +{ +} + + +int dummy_speed(int speed) +{ + return ERROR_OK; +} + +int dummy_register_commands(struct command_context_s *cmd_ctx) +{ + return ERROR_OK; +} + + +int dummy_init(void) +{ + bitbang_interface = &dummy_bitbang; + + return ERROR_OK; +} + +int dummy_quit(void) +{ + return ERROR_OK; +} + + +void dummy_led(int on) +{ +} + diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index fe76a32213..74f00900c0 100644 --- 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 -- 2.30.2