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/* 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 *
* *
* Copyright (C) 2009 Zachary T Welch *
* zw@superlucidity.net *
***************************************************************************/
#ifndef OPENOCD_JTAG_MINIDRIVER_H
#define OPENOCD_JTAG_MINIDRIVER_H
/**
* @page jtagminidriver JTAG Mini-Driver
*
* The JTAG minidriver interface allows the definition of alternate
* interface functions, instead of the built-in asynchronous driver
* module that is used by the standard JTAG interface drivers.
*
* In addition to the functions defined in the @c minidriver.h file, the
* @c jtag_minidriver.h file must declare the following functions (or
* define static inline versions of them):
* - jtag_add_callback
* - jtag_add_callback4
*
* The following core functions are declared in this file for use by
* the minidriver and do @b not need to be defined by an implementation:
* - default_interface_jtag_execute_queue()
*/
/* this header will be provided by the minidriver implementation, */
/* and it may provide additional declarations that must be defined. */
#include <jtag/drivers/minidriver_imp.h>
int interface_jtag_add_ir_scan(struct jtag_tap *active,
const struct scan_field *fields,
tap_state_t endstate);
int interface_jtag_add_plain_ir_scan(
int num_bits, const uint8_t *out_bits, uint8_t *in_bits,
tap_state_t endstate);
int interface_jtag_add_dr_scan(struct jtag_tap *active,
int num_fields, const struct scan_field *fields,
tap_state_t endstate);
int interface_jtag_add_plain_dr_scan(
int num_bits, const uint8_t *out_bits, uint8_t *in_bits,
tap_state_t endstate);
int interface_jtag_add_tlr(void);
int interface_jtag_add_pathmove(unsigned int num_states, const tap_state_t *path);
int interface_jtag_add_runtest(unsigned int num_cycles, tap_state_t endstate);
int interface_add_tms_seq(unsigned num_bits,
const uint8_t *bits, enum tap_state state);
/**
* This drives the actual srst and trst pins. srst will always be 0
* if jtag_reset_config & RESET_SRST_PULLS_TRST != 0 and ditto for
* trst.
*
* the higher level jtag_add_reset will invoke jtag_add_tlr() if
* appropriate
*/
int interface_jtag_add_reset(int trst, int srst);
int interface_jtag_add_sleep(uint32_t us);
int interface_jtag_add_clocks(unsigned int num_cycles);
int interface_jtag_execute_queue(void);
/**
* Calls the interface callback to execute the queue. This routine
* is used by the JTAG driver layer and should not be called directly.
*/
int default_interface_jtag_execute_queue(void);
#endif /* OPENOCD_JTAG_MINIDRIVER_H */