80 lines
3.1 KiB
C
80 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/***************************************************************************
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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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* Copyright (C) 2009 Zachary T Welch *
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* zw@superlucidity.net *
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***************************************************************************/
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#ifndef OPENOCD_JTAG_MINIDRIVER_H
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#define OPENOCD_JTAG_MINIDRIVER_H
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/**
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* @page jtagminidriver JTAG Mini-Driver
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*
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* The JTAG minidriver interface allows the definition of alternate
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* interface functions, instead of the built-in asynchronous driver
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* module that is used by the standard JTAG interface drivers.
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*
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* In addition to the functions defined in the @c minidriver.h file, the
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* @c jtag_minidriver.h file must declare the following functions (or
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* define static inline versions of them):
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* - jtag_add_callback
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* - jtag_add_callback4
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*
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* The following core functions are declared in this file for use by
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* the minidriver and do @b not need to be defined by an implementation:
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* - default_interface_jtag_execute_queue()
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*/
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/* this header will be provided by the minidriver implementation, */
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/* and it may provide additional declarations that must be defined. */
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#include <jtag/drivers/minidriver_imp.h>
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int interface_jtag_add_ir_scan(struct jtag_tap *active,
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const struct scan_field *fields,
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tap_state_t endstate);
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int interface_jtag_add_plain_ir_scan(
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int num_bits, const uint8_t *out_bits, uint8_t *in_bits,
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tap_state_t endstate);
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int interface_jtag_add_dr_scan(struct jtag_tap *active,
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int num_fields, const struct scan_field *fields,
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tap_state_t endstate);
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int interface_jtag_add_plain_dr_scan(
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int num_bits, const uint8_t *out_bits, uint8_t *in_bits,
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tap_state_t endstate);
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int interface_jtag_add_tlr(void);
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int interface_jtag_add_pathmove(int num_states, const tap_state_t *path);
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int interface_jtag_add_runtest(int num_cycles, tap_state_t endstate);
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int interface_add_tms_seq(unsigned num_bits,
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const uint8_t *bits, enum tap_state state);
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/**
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* This drives the actual srst and trst pins. srst will always be 0
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* if jtag_reset_config & RESET_SRST_PULLS_TRST != 0 and ditto for
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* trst.
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*
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* the higher level jtag_add_reset will invoke jtag_add_tlr() if
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* appropriate
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*/
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int interface_jtag_add_reset(int trst, int srst);
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int interface_jtag_add_sleep(uint32_t us);
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int interface_jtag_add_clocks(int num_cycles);
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int interface_jtag_execute_queue(void);
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/**
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* Calls the interface callback to execute the queue. This routine
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* is used by the JTAG driver layer and should not be called directly.
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*/
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int default_interface_jtag_execute_queue(void);
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#endif /* OPENOCD_JTAG_MINIDRIVER_H */
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