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/* Common hardware header file.
Copyright (C) 1998-2021 Free Software Foundation, Inc.
Contributed by Andrew Cagney and Cygnus Support.
This file is part of GDB, the GNU debugger.
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 3 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
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 HW_MAIN
#define HW_MAIN
/* establish a type system */
#include "sim-basics.h"
/* construct a hw device */
#include "hw-device.h"
#include "hw-properties.h"
#include "hw-events.h"
#include "hw-alloc.h"
#include "hw-instances.h"
#include "hw-handles.h"
#include "hw-ports.h"
/* Description of a hardware device */
typedef void (hw_finish_method)
(struct hw *me);
struct hw_descriptor
const char *family;
hw_finish_method *to_finish;
/* Helper functions to make the implementation of a device easier */
/* Go through the devices reg properties and look for those specifying
an address to attach various registers to */
void do_hw_attach_regs (struct hw *me);
/* Perform a polling read on FD returning either the number of bytes
or a hw_io status code that indicates the reason for the read
failure */
HW_IO_EOF = -1, HW_IO_NOT_READY = -2, /* See: IEEE 1275 */
typedef int (do_hw_poll_read_method)
(SIM_DESC sd, int, char *, int);
int do_hw_poll_read
(struct hw *me,
do_hw_poll_read_method *read,
int sim_io_fd,
void *buf,
unsigned size_of_buf);