X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Fdrivers%2Fbitbang.h;h=bbbc693df5634fcffca85a33950b619937a4f17c;hp=edb779cad9409bde4d308ec3b718ef5e3b53db7c;hb=HEAD;hpb=9daec098a9011171335f0a60536593dcceb9ce5b diff --git a/src/jtag/drivers/bitbang.h b/src/jtag/drivers/bitbang.h index edb779cad9..dc941796e2 100644 --- a/src/jtag/drivers/bitbang.h +++ b/src/jtag/drivers/bitbang.h @@ -1,28 +1,18 @@ +/* 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 . * ***************************************************************************/ #ifndef OPENOCD_JTAG_DRIVERS_BITBANG_H #define OPENOCD_JTAG_DRIVERS_BITBANG_H #include +#include typedef enum { BB_LOW, @@ -38,32 +28,45 @@ typedef enum { * 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); -}; -const struct swd_driver bitbang_swd; + /** 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 bool swd_mode; +extern const struct swd_driver bitbang_swd; -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 */