136 lines
5.2 KiB
C
136 lines
5.2 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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* Copyright (C) 2009 Zachary T Welch *
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* zw@superlucidity.net *
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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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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef MINIDRIVER_H
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#define MINIDRIVER_H
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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 addtion 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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* - interface_jtag_add_dr_out
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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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#ifdef HAVE_JTAG_MINIDRIVER_H
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#include "jtag_minidriver.h"
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static inline void interface_jtag_alloc_in_value32(scan_field_t *field)
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{
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field->in_value = field->intmp;
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}
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static inline void interface_jtag_add_scan_check_alloc(scan_field_t *field)
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{
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/* We're executing this synchronously, so try to use local storage. */
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if (field->num_bits > 32)
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{
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unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
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field->in_value = (uint8_t *)malloc(num_bytes);
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field->allocated = 1;
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}
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else
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field->in_value = field->intmp;
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}
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#else
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#include "commands.h"
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static inline void interface_jtag_alloc_in_value32(scan_field_t *field)
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{
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field->in_value = (uint8_t *)cmd_queue_alloc(4);
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}
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static inline void interface_jtag_add_scan_check_alloc(scan_field_t *field)
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{
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unsigned num_bytes = TAP_SCAN_BYTES(field->num_bits);
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field->in_value = (uint8_t *)cmd_queue_alloc(num_bytes);
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}
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extern void interface_jtag_add_dr_out(jtag_tap_t* tap,
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int num_fields, const int* num_bits, const uint32_t* value,
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tap_state_t end_state);
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extern void interface_jtag_add_callback(jtag_callback1_t f, jtag_callback_data_t data0);
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extern void interface_jtag_add_callback4(jtag_callback_t f, jtag_callback_data_t data0,
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jtag_callback_data_t data1, jtag_callback_data_t data2,
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jtag_callback_data_t data3);
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#endif
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extern int interface_jtag_add_ir_scan(
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int num_fields, const scan_field_t* fields,
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tap_state_t endstate);
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extern int interface_jtag_add_plain_ir_scan(
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int num_fields, const scan_field_t* fields,
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tap_state_t endstate);
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extern int interface_jtag_add_dr_scan(
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int num_fields, const scan_field_t* fields,
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tap_state_t endstate);
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extern int interface_jtag_add_plain_dr_scan(
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int num_fields, const scan_field_t* fields,
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tap_state_t endstate);
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extern int interface_jtag_add_tlr(void);
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extern int interface_jtag_add_pathmove(int num_states, const tap_state_t* path);
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extern int interface_jtag_add_runtest(int num_cycles, tap_state_t endstate);
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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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* approperiate
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*/
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extern int interface_jtag_add_reset(int trst, int srst);
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extern int interface_jtag_set_end_state(tap_state_t endstate);
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extern int interface_jtag_add_sleep(uint32_t us);
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extern int interface_jtag_add_clocks(int num_cycles);
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extern 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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extern int default_interface_jtag_execute_queue(void);
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#endif // MINIDRIVER_H
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