+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 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, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifndef OPENOCD_JTAG_DRIVERS_BITBANG_H
#define OPENOCD_JTAG_DRIVERS_BITBANG_H
#include <jtag/swd.h>
+#include <jtag/commands.h>
typedef enum {
BB_LOW,
* sample requests together. Not waiting for a value to come back can greatly
* increase throughput. */
struct bitbang_interface {
- /** Sample TDO. */
+ /** Sample TDO and return the value. */
bb_value_t (*read)(void);
/** The number of TDO samples that can be buffered up before the caller has
* to call read_sample. */
size_t buf_size;
+
/** Sample TDO and put the result in a buffer. */
int (*sample)(void);
+
/** Return the next unread value from the buffer. */
bb_value_t (*read_sample)(void);
/** Set TCK, TMS, and TDI to the given values. */
int (*write)(int tck, int tms, int tdi);
+
+ /** Blink led (optional). */
int (*blink)(int on);
+
+ /** Sample SWDIO and return the value. */
int (*swdio_read)(void);
+
+ /** Set direction of SWDIO. */
void (*swdio_drive)(bool on);
+
+ /** Set SWCLK and SWDIO to the given value. */
+ int (*swd_write)(int swclk, int swdio);
+
+ /** Sleep for some number of microseconds. **/
+ int (*sleep)(unsigned int microseconds);
+
+ /** Force a flush. */
+ int (*flush)(void);
};
extern const struct swd_driver bitbang_swd;
-extern bool swd_mode;
-
-int bitbang_execute_queue(void);
+int bitbang_execute_queue(struct jtag_command *cmd_queue);
extern struct bitbang_interface *bitbang_interface;
-void bitbang_switch_to_swd(void);
-int bitbang_swd_switch_seq(enum swd_special_seq seq);
#endif /* OPENOCD_JTAG_DRIVERS_BITBANG_H */