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https://sourceware.org/git/binutils-gdb.git
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68ed285428
Since we require C11 now, we can assume many headers exist, and clean up all of the conditional includes. It's not like any of this code actually accounted for the headers not existing, just whether we could include them. The strings.h cleanup is a little nuanced: it isn't in C11, but every use of it in the codebase will include strings.h only if string.h doesn't exist. Since we now assume the C11 string.h exists, we'll never include strings.h, so we can delete it.
317 lines
8.2 KiB
C
317 lines
8.2 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
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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 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _DEVICE_TABLE_H_
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#define _DEVICE_TABLE_H_
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#include "basics.h"
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#include "device.h"
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#include "tree.h"
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#include <string.h>
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typedef struct _device_callbacks device_callbacks;
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/* The creator, returns a pointer to any data that should be allocated
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once during (multiple) simulation runs */
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typedef void *(device_creator)
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(const char *name,
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const device_unit *unit_address,
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const char *args);
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/* two stages of initialization */
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typedef void (device_init_callback)
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(device *me);
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typedef struct _device_init_callbacks {
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device_init_callback *address; /* NULL - ignore */
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device_init_callback *data; /* NULL - ignore */
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} device_init_callbacks;
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/* attaching/detaching a devices address space to its parent */
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typedef void (device_address_callback)
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(device *me,
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attach_type attach,
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int space,
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unsigned_word addr,
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unsigned nr_bytes,
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access_type access,
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device *client); /*callback/default*/
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typedef struct _device_address_callbacks {
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device_address_callback *attach;
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device_address_callback *detach;
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} device_address_callbacks;
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/* I/O operations - from parent */
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typedef unsigned (device_io_read_buffer_callback)
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(device *me,
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void *dest,
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int space,
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unsigned_word addr,
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unsigned nr_bytes,
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cpu *processor,
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unsigned_word cia);
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typedef unsigned (device_io_write_buffer_callback)
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(device *me,
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const void *source,
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int space,
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unsigned_word addr,
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unsigned nr_bytes,
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cpu *processor,
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unsigned_word cia);
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typedef struct _device_io_callbacks { /* NULL - error */
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device_io_read_buffer_callback *read_buffer;
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device_io_write_buffer_callback *write_buffer;
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} device_io_callbacks;
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/* DMA transfers by a device via its parent */
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typedef unsigned (device_dma_read_buffer_callback)
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(device *me,
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void *dest,
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int space,
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unsigned_word addr,
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unsigned nr_bytes);
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typedef unsigned (device_dma_write_buffer_callback)
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(device *me,
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const void *source,
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int space,
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unsigned_word addr,
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unsigned nr_bytes,
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int violate_read_only_section);
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typedef struct _device_dma_callbacks { /* NULL - error */
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device_dma_read_buffer_callback *read_buffer;
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device_dma_write_buffer_callback *write_buffer;
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} device_dma_callbacks;
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/* Interrupts */
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typedef void (device_interrupt_event_callback)
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(device *me,
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int my_port,
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device *source,
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int source_port,
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int level,
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cpu *processor,
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unsigned_word cia);
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typedef void (device_child_interrupt_event_callback)
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(device *me,
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device *parent,
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device *source,
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int source_port,
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int level,
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cpu *processor,
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unsigned_word cia);
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typedef struct _device_interrupt_port_descriptor {
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const char *name;
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int number;
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int nr_ports;
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port_direction direction;
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} device_interrupt_port_descriptor;
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typedef struct _device_interrupt_callbacks {
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device_interrupt_event_callback *event;
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device_child_interrupt_event_callback *child_event;
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const device_interrupt_port_descriptor *ports;
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} device_interrupt_callbacks;
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/* symbolic value decoding */
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typedef int (device_unit_decode_callback)
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(device *bus,
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const char *unit,
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device_unit *address);
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typedef int (device_unit_encode_callback)
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(device *bus,
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const device_unit *unit_address,
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char *buf,
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int sizeof_buf);
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typedef int (device_address_to_attach_address_callback)
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(device *bus,
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const device_unit *address,
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int *attach_space,
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unsigned_word *attach_address,
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device *client);
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typedef int (device_size_to_attach_size_callback)
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(device *bus,
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const device_unit *size,
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unsigned *nr_bytes,
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device *client);
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typedef struct _device_convert_callbacks {
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device_unit_decode_callback *decode_unit;
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device_unit_encode_callback *encode_unit;
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device_address_to_attach_address_callback *address_to_attach_address;
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device_size_to_attach_size_callback *size_to_attach_size;
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} device_convert_callbacks;
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/* instances */
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typedef void (device_instance_delete_callback)
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(device_instance *instance);
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typedef int (device_instance_read_callback)
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(device_instance *instance,
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void *buf,
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unsigned_word len);
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typedef int (device_instance_write_callback)
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(device_instance *instance,
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const void *buf,
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unsigned_word len);
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typedef int (device_instance_seek_callback)
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(device_instance *instance,
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unsigned_word pos_hi,
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unsigned_word pos_lo);
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typedef int (device_instance_method)
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(device_instance *instance,
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int n_stack_args,
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unsigned_cell stack_args[/*n_stack_args*/],
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int n_stack_returns,
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unsigned_cell stack_returns[/*n_stack_returns*/]);
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typedef struct _device_instance_methods {
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const char *name;
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device_instance_method *method;
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} device_instance_methods;
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struct _device_instance_callbacks { /* NULL - error */
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device_instance_delete_callback *delete;
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device_instance_read_callback *read;
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device_instance_write_callback *write;
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device_instance_seek_callback *seek;
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const device_instance_methods *methods;
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};
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typedef device_instance *(device_create_instance_callback)
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(device *me,
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const char *full_path,
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const char *args);
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typedef device_instance *(package_create_instance_callback)
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(device_instance *parent,
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const char *args);
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/* all else fails */
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typedef int (device_ioctl_callback)
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(device *me,
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cpu *processor,
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unsigned_word cia,
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device_ioctl_request request,
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va_list ap);
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typedef void (device_usage_callback)
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(int verbose);
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/* the callbacks */
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struct _device_callbacks {
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/* initialization */
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device_init_callbacks init;
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/* address/data config - from child */
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device_address_callbacks address;
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/* address/data transfer - from parent */
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device_io_callbacks io;
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/* address/data transfer - from child */
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device_dma_callbacks dma;
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/* interrupt signalling */
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device_interrupt_callbacks interrupt;
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/* bus address decoding */
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device_convert_callbacks convert;
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/* instances */
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device_create_instance_callback *instance_create;
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/* back door to anything we've forgot */
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device_ioctl_callback *ioctl;
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device_usage_callback *usage;
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};
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/* Table of all the devices and a function to lookup/create a device
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from its name */
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typedef struct _device_descriptor device_descriptor;
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struct _device_descriptor {
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const char *name;
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device_creator *creator;
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const device_callbacks *callbacks;
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};
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extern const device_descriptor *const device_table[];
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#include "hw.h"
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/* Pass through, ignore and generic callback functions. A call going
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towards the root device are passed on up, local calls are ignored
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and call downs abort */
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extern device_address_callback passthrough_device_address_attach;
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extern device_address_callback passthrough_device_address_detach;
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extern device_dma_read_buffer_callback passthrough_device_dma_read_buffer;
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extern device_dma_write_buffer_callback passthrough_device_dma_write_buffer;
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extern device_unit_decode_callback ignore_device_unit_decode;
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extern device_init_callback generic_device_init_address;
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extern device_unit_decode_callback generic_device_unit_decode;
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extern device_unit_encode_callback generic_device_unit_encode;
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extern device_address_to_attach_address_callback generic_device_address_to_attach_address;
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extern device_size_to_attach_size_callback generic_device_size_to_attach_size;
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extern const device_callbacks passthrough_device_callbacks;
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#endif /* _DEVICE_TABLE_H_ */
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