e971c7f423
This is based on the initial work by Paul Fertser with addition of the switch sequences and new ACK handling. In case of WAIT response, the sticky bits are cleared and the last operation is repeated. The ACK handling is based on the interpretation of the 8 February 2006 ARM Debug Interface v5 Architecture Specification Change-Id: Id50855b1ffff310177ccf9883dc9eb0d1b4458c8 Signed-off-by: Jean-Christian de Rivaz <jc@eclis.ch> Reviewed-on: http://openocd.zylin.com/2437 Tested-by: jenkins Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk> Reviewed-by: Paul Fertser <fercerpav@gmail.com> Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
51 lines
2.2 KiB
C
51 lines
2.2 KiB
C
/***************************************************************************
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* Copyright (C) 2005 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
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***************************************************************************/
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#ifndef BITBANG_H
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#define BITBANG_H
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#include <jtag/swd.h>
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struct bitbang_interface {
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/* low level callbacks (for bitbang)
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*/
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int (*read)(void);
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void (*write)(int tck, int tms, int tdi);
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void (*reset)(int trst, int srst);
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void (*blink)(int on);
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int (*swdio_read)(void);
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void (*swdio_drive)(bool on);
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};
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const struct swd_driver bitbang_swd;
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extern bool swd_mode;
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int bitbang_execute_queue(void);
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extern struct bitbang_interface *bitbang_interface;
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void bitbang_switch_to_swd(void);
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int bitbang_swd_switch_seq(struct adiv5_dap *dap, enum swd_special_seq seq);
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#endif /* BITBANG_H */
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