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-rw-r--r--sim/ppc/device.c1998
1 files changed, 1998 insertions, 0 deletions
diff --git a/sim/ppc/device.c b/sim/ppc/device.c
new file mode 100644
index 00000000000..ffb094324c4
--- /dev/null
+++ b/sim/ppc/device.c
@@ -0,0 +1,1998 @@
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
+
+ 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 2 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
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ */
+
+
+#ifndef _DEVICE_C_
+#define _DEVICE_C_
+
+#include <stdio.h>
+
+#include "device_table.h"
+#include "cap.h"
+
+#include "events.h"
+#include "psim.h"
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+#include <ctype.h>
+
+STATIC_INLINE_DEVICE (void) clean_device_properties(device *);
+
+/* property entries */
+
+typedef struct _device_property_entry device_property_entry;
+struct _device_property_entry {
+ device_property_entry *next;
+ device_property *value;
+ const void *init_array;
+ unsigned sizeof_init_array;
+};
+
+
+/* Interrupt edges */
+
+typedef struct _device_interrupt_edge device_interrupt_edge;
+struct _device_interrupt_edge {
+ int my_port;
+ device *dest;
+ int dest_port;
+ device_interrupt_edge *next;
+ object_disposition disposition;
+};
+
+STATIC_INLINE_DEVICE\
+(void)
+attach_device_interrupt_edge(device_interrupt_edge **list,
+ int my_port,
+ device *dest,
+ int dest_port,
+ object_disposition disposition)
+{
+ device_interrupt_edge *new_edge = ZALLOC(device_interrupt_edge);
+ new_edge->my_port = my_port;
+ new_edge->dest = dest;
+ new_edge->dest_port = dest_port;
+ new_edge->next = *list;
+ new_edge->disposition = disposition;
+ *list = new_edge;
+}
+
+STATIC_INLINE_DEVICE\
+(void)
+detach_device_interrupt_edge(device *me,
+ device_interrupt_edge **list,
+ int my_port,
+ device *dest,
+ int dest_port)
+{
+ while (*list != NULL) {
+ device_interrupt_edge *old_edge = *list;
+ if (old_edge->dest == dest
+ && old_edge->dest_port == dest_port
+ && old_edge->my_port == my_port) {
+ if (old_edge->disposition == permenant_object)
+ device_error(me, "attempt to delete permenant interrupt");
+ *list = old_edge->next;
+ zfree(old_edge);
+ return;
+ }
+ }
+ device_error(me, "attempt to delete unattached interrupt");
+}
+
+STATIC_INLINE_DEVICE\
+(void)
+clean_device_interrupt_edges(device_interrupt_edge **list)
+{
+ while (*list != NULL) {
+ device_interrupt_edge *old_edge = *list;
+ switch (old_edge->disposition) {
+ case permenant_object:
+ list = &old_edge->next;
+ break;
+ case tempoary_object:
+ *list = old_edge->next;
+ zfree(old_edge);
+ break;
+ }
+ }
+}
+
+
+/* A device */
+
+struct _device {
+
+ /* my name is ... */
+ const char *name;
+ device_unit unit_address;
+ const char *path;
+ int nr_address_cells;
+ int nr_size_cells;
+
+ /* device tree */
+ device *parent;
+ device *children;
+ device *sibling;
+
+ /* its template methods */
+ void *data; /* device specific data */
+ const device_callbacks *callback;
+
+ /* device properties */
+ device_property_entry *properties;
+
+ /* interrupts */
+ device_interrupt_edge *interrupt_destinations;
+
+ /* any open instances of this device */
+ device_instance *instances;
+
+ /* the internal/external mappings and other global requirements */
+ cap *ihandles;
+ cap *phandles;
+ psim *system;
+
+ /* debugging */
+ int trace;
+};
+
+
+/* an instance of a device */
+struct _device_instance {
+ void *data;
+ char *args;
+ char *path;
+ const device_instance_callbacks *callback;
+ /* the root instance */
+ device *owner;
+ device_instance *next;
+ /* interposed instance */
+ device_instance *parent;
+ device_instance *child;
+};
+
+
+
+/* creation */
+
+STATIC_INLINE_DEVICE\
+(const char *)
+device_full_name(device *leaf,
+ char *buf,
+ unsigned sizeof_buf)
+{
+ /* get a buffer */
+ char full_name[1024];
+ if (buf == (char*)0) {
+ buf = full_name;
+ sizeof_buf = sizeof(full_name);
+ }
+
+ /* construct a name */
+ if (leaf->parent == NULL) {
+ if (sizeof_buf < 1)
+ error("device_full_name: buffer overflow");
+ *buf = '\0';
+ }
+ else {
+ char unit[1024];
+ device_full_name(leaf->parent, buf, sizeof_buf);
+ if (leaf->parent != NULL
+ && device_encode_unit(leaf->parent,
+ &leaf->unit_address,
+ unit+1,
+ sizeof(unit)-1) > 0)
+ unit[0] = '@';
+ else
+ unit[0] = '\0';
+ if (strlen(buf) + strlen("/") + strlen(leaf->name) + strlen(unit)
+ >= sizeof_buf)
+ error("device_full_name: buffer overflow");
+ strcat(buf, "/");
+ strcat(buf, leaf->name);
+ strcat (buf, unit);
+ }
+
+ /* return it usefully */
+ if (buf == full_name)
+ buf = (char *) strdup(full_name);
+ return buf;
+}
+
+STATIC_INLINE_DEVICE\
+(device *)
+device_create_from(const char *name,
+ const device_unit *unit_address,
+ void *data,
+ const device_callbacks *callbacks,
+ device *parent)
+{
+ device *new_device = ZALLOC(device);
+
+ /* insert it into the device tree */
+ new_device->parent = parent;
+ new_device->children = NULL;
+ if (parent != NULL) {
+ device **sibling = &parent->children;
+ while ((*sibling) != NULL)
+ sibling = &(*sibling)->sibling;
+ *sibling = new_device;
+ }
+
+ /* give it a name */
+ new_device->name = (char *) strdup(name);
+ new_device->unit_address = *unit_address;
+ new_device->path = device_full_name(new_device, NULL, 0);
+
+ /* its template */
+ new_device->data = data;
+ new_device->callback = callbacks;
+
+ /* its properties - already null */
+ /* interrupts - already null */
+
+ /* mappings - if needed */
+ if (parent == NULL) {
+ new_device->ihandles = cap_create(name);
+ new_device->phandles = cap_create(name);
+ }
+ else {
+ new_device->ihandles = device_root(parent)->ihandles;
+ new_device->phandles = device_root(parent)->phandles;
+ }
+
+ cap_add(new_device->phandles, new_device);
+ return new_device;
+}
+
+
+
+INLINE_DEVICE\
+(device *)
+device_create(device *parent,
+ const char *base,
+ const char *name,
+ const char *unit_address,
+ const char *args)
+{
+ const device_descriptor *const *table;
+ for (table = device_table; *table != NULL; table++) {
+ const device_descriptor *descr;
+ for (descr = *table; descr->name != NULL; descr++) {
+ if (strcmp(base, descr->name) == 0) {
+ device_unit address = { 0 };
+ void *data = NULL;
+ if (parent != NULL)
+ if (device_decode_unit(parent, unit_address, &address) < 0)
+ device_error(parent, "invalid address %s for device %s",
+ unit_address, name);
+ if (descr->creator != NULL)
+ data = descr->creator(name, &address, args);
+ return device_create_from(name, &address, data,
+ descr->callbacks, parent);
+ }
+ }
+ }
+ device_error(parent, "attempt to attach unknown device %s", name);
+ return NULL;
+}
+
+
+
+INLINE_DEVICE\
+(void)
+device_usage(int verbose)
+{
+ const device_descriptor *const *table;
+ if (verbose == 1) {
+ int pos = 0;
+ for (table = device_table; *table != NULL; table++) {
+ const device_descriptor *descr;
+ for (descr = *table; descr->name != NULL; descr++) {
+ pos += strlen(descr->name) + 2;
+ if (pos > 75) {
+ pos = strlen(descr->name) + 2;
+ printf_filtered("\n");
+ }
+ printf_filtered(" %s", descr->name);
+ }
+ printf_filtered("\n");
+ }
+ }
+ if (verbose > 1) {
+ for (table = device_table; *table != NULL; table++) {
+ const device_descriptor *descr;
+ for (descr = *table; descr->name != NULL; descr++) {
+ printf_filtered(" %s:\n", descr->name);
+ /* interrupt ports */
+ if (descr->callbacks->interrupt.ports != NULL) {
+ const device_interrupt_port_descriptor *ports =
+ descr->callbacks->interrupt.ports;
+ printf_filtered(" interrupt ports:");
+ while (ports->name != NULL) {
+ printf_filtered(" %s", ports->name);
+ ports++;
+ }
+ printf_filtered("\n");
+ }
+ /* general info */
+ if (descr->callbacks->usage != NULL)
+ descr->callbacks->usage(verbose);
+ }
+ }
+ }
+}
+
+
+
+
+
+/* Device node: */
+
+INLINE_DEVICE\
+(device *)
+device_parent(device *me)
+{
+ return me->parent;
+}
+
+INLINE_DEVICE\
+(device *)
+device_root(device *me)
+{
+ ASSERT(me != NULL);
+ while (me->parent != NULL)
+ me = me->parent;
+ return me;
+}
+
+INLINE_DEVICE\
+(device *)
+device_sibling(device *me)
+{
+ return me->sibling;
+}
+
+INLINE_DEVICE\
+(device *)
+device_child(device *me)
+{
+ return me->children;
+}
+
+INLINE_DEVICE\
+(const char *)
+device_name(device *me)
+{
+ return me->name;
+}
+
+INLINE_DEVICE\
+(const char *)
+device_path(device *me)
+{
+ return me->path;
+}
+
+INLINE_DEVICE\
+(void *)
+device_data(device *me)
+{
+ return me->data;
+}
+
+INLINE_DEVICE\
+(psim *)
+device_system(device *me)
+{
+ return me->system;
+}
+
+INLINE_DEVICE\
+(const device_unit *)
+device_unit_address(device *me)
+{
+ return &me->unit_address;
+}
+
+
+INLINE_DEVICE\
+(int)
+device_address_to_attach_address(device *me,
+ const device_unit *address,
+ int *attach_space,
+ unsigned_word *attach_address,
+ device *client)
+{
+ if (me->callback->convert.address_to_attach_address == NULL)
+ device_error(me, "no convert.address_to_attach_address method");
+ return me->callback->convert.address_to_attach_address(me, address, attach_space, attach_address, client);
+}
+
+
+INLINE_DEVICE\
+(int)
+device_size_to_attach_size(device *me,
+ const device_unit *size,
+ unsigned *nr_bytes,
+ device *client)
+{
+ if (me->callback->convert.size_to_attach_size == NULL)
+ device_error(me, "no convert.size_to_attach_size method");
+ return me->callback->convert.size_to_attach_size(me, size, nr_bytes, client);
+}
+
+
+INLINE_DEVICE\
+(int)
+device_decode_unit(device *bus,
+ const char *unit,
+ device_unit *address)
+{
+ if (bus->callback->convert.decode_unit == NULL)
+ device_error(bus, "no convert.decode_unit method");
+ return bus->callback->convert.decode_unit(bus, unit, address);
+}
+
+
+INLINE_DEVICE\
+(int)
+device_encode_unit(device *bus,
+ const device_unit *unit_address,
+ char *buf,
+ int sizeof_buf)
+{
+ if (bus->callback->convert.encode_unit == NULL)
+ device_error(bus, "no convert.encode_unit method");
+ return bus->callback->convert.encode_unit(bus, unit_address, buf, sizeof_buf);
+}
+
+INLINE_DEVICE\
+(unsigned)
+device_nr_address_cells(device *me)
+{
+ if (me->nr_address_cells == 0) {
+ if (device_find_property(me, "#address-cells") != NULL)
+ me->nr_address_cells = device_find_integer_property(me, "#address-cells");
+ else
+ me->nr_address_cells = 2;
+ }
+ return me->nr_address_cells;
+}
+
+INLINE_DEVICE\
+(unsigned)
+device_nr_size_cells(device *me)
+{
+ if (me->nr_size_cells == 0) {
+ if (device_find_property(me, "#size-cells") != NULL)
+ me->nr_size_cells = device_find_integer_property(me, "#size-cells");
+ else
+ me->nr_size_cells = 1;
+ }
+ return me->nr_size_cells;
+}
+
+
+
+/* device-instance: */
+
+INLINE_DEVICE\
+(device_instance *)
+device_create_instance_from(device *me,
+ device_instance *parent,
+ void *data,
+ const char *path,
+ const char *args,
+ const device_instance_callbacks *callbacks)
+{
+ device_instance *instance = ZALLOC(device_instance);
+ if ((me == NULL) == (parent == NULL))
+ device_error(me, "can't have both parent instance and parent device");
+ /*instance->unit*/
+ /* link this instance into the devices list */
+ if (me != NULL) {
+ ASSERT(parent == NULL);
+ instance->owner = me;
+ instance->parent = NULL;
+ /* link this instance into the front of the devices instance list */
+ instance->next = me->instances;
+ me->instances = instance;
+ }
+ if (parent != NULL) {
+ device_instance **previous;
+ ASSERT(parent->child == NULL);
+ parent->child = instance;
+ ASSERT(me == NULL);
+ instance->owner = parent->owner;
+ instance->parent = parent;
+ /* in the devices instance list replace the parent instance with
+ this one */
+ instance->next = parent->next;
+ /* replace parent with this new node */
+ previous = &instance->owner->instances;
+ while (*previous != parent) {
+ ASSERT(*previous != NULL);
+ previous = &(*previous)->next;
+ }
+ *previous = instance;
+ }
+ instance->data = data;
+ instance->args = (args == NULL ? NULL : (char *) strdup(args));
+ instance->path = (path == NULL ? NULL : (char *) strdup(path));
+ instance->callback = callbacks;
+ cap_add(instance->owner->ihandles, instance);
+ return instance;
+}
+
+
+INLINE_DEVICE\
+(device_instance *)
+device_create_instance(device *me,
+ const char *path,
+ const char *args)
+{
+ /* create the instance */
+ if (me->callback->instance_create == NULL)
+ device_error(me, "no instance_create method");
+ return me->callback->instance_create(me, path, args);
+}
+
+
+STATIC_INLINE_DEVICE\
+(void)
+clean_device_instances(device *me)
+{
+ device_instance **instance = &me->instances;
+ while (*instance != NULL) {
+ device_instance *old_instance = *instance;
+ device_instance_delete(old_instance);
+ instance = &me->instances;
+ }
+}
+
+
+INLINE_DEVICE\
+(void)
+device_instance_delete(device_instance *instance)
+{
+ device *me = instance->owner;
+ if (instance->callback->delete == NULL)
+ device_error(me, "no delete method");
+ instance->callback->delete(instance);
+ if (instance->args != NULL)
+ zfree(instance->args);
+ if (instance->path != NULL)
+ zfree(instance->path);
+ if (instance->child == NULL) {
+ /* only remove leaf nodes */
+ device_instance **curr = &me->instances;
+ while (*curr != instance) {
+ ASSERT(*curr != NULL);
+ curr = &(*curr)->next;
+ }
+ *curr = instance->next;
+ }
+ else {
+ /* check it isn't in the instance list */
+ device_instance *curr = me->instances;
+ while (curr != NULL) {
+ ASSERT(curr != instance);
+ curr = curr->next;
+ }
+ /* unlink the child */
+ ASSERT(instance->child->parent == instance);
+ instance->child->parent = NULL;
+ }
+ cap_remove(me->ihandles, instance);
+ zfree(instance);
+}
+
+INLINE_DEVICE\
+(int)
+device_instance_read(device_instance *instance,
+ void *addr,
+ unsigned_word len)
+{
+ device *me = instance->owner;
+ if (instance->callback->read == NULL)
+ device_error(me, "no read method");
+ return instance->callback->read(instance, addr, len);
+}
+
+INLINE_DEVICE\
+(int)
+device_instance_write(device_instance *instance,
+ const void *addr,
+ unsigned_word len)
+{
+ device *me = instance->owner;
+ if (instance->callback->write == NULL)
+ device_error(me, "no write method");
+ return instance->callback->write(instance, addr, len);
+}
+
+INLINE_DEVICE\
+(int)
+device_instance_seek(device_instance *instance,
+ unsigned_word pos_hi,
+ unsigned_word pos_lo)
+{
+ device *me = instance->owner;
+ if (instance->callback->seek == NULL)
+ device_error(me, "no seek method");
+ return instance->callback->seek(instance, pos_hi, pos_lo);
+}
+
+INLINE_DEVICE\
+(int)
+device_instance_call_method(device_instance *instance,
+ const char *method_name,
+ int n_stack_args,
+ unsigned_cell stack_args[/*n_stack_args*/],
+ int n_stack_returns,
+ unsigned_cell stack_returns[/*n_stack_args*/])
+{
+ device *me = instance->owner;
+ const device_instance_methods *method = instance->callback->methods;
+ if (method == NULL) {
+ device_error(me, "no methods (want %s)", method_name);
+ }
+ while (method->name != NULL) {
+ if (strcmp(method->name, method_name) == 0) {
+ return method->method(instance,
+ n_stack_args, stack_args,
+ n_stack_returns, stack_returns);
+ }
+ method++;
+ }
+ device_error(me, "no %s method", method_name);
+ return 0;
+}
+
+
+INLINE_DEVICE\
+(device *)
+device_instance_device(device_instance *instance)
+{
+ return instance->owner;
+}
+
+INLINE_DEVICE\
+(const char *)
+device_instance_path(device_instance *instance)
+{
+ return instance->path;
+}
+
+INLINE_DEVICE\
+(void *)
+device_instance_data(device_instance *instance)
+{
+ return instance->data;
+}
+
+
+
+/* Device Properties: */
+
+STATIC_INLINE_DEVICE\
+(device_property_entry *)
+find_property_entry(device *me,
+ const char *property)
+{
+ device_property_entry *entry;
+ ASSERT(property != NULL);
+ entry = me->properties;
+ while (entry != NULL) {
+ if (strcmp(entry->value->name, property) == 0)
+ return entry;
+ entry = entry->next;
+ }
+ return NULL;
+}
+
+STATIC_INLINE_DEVICE\
+(void)
+device_add_property(device *me,
+ const char *property,
+ device_property_type type,
+ const void *init_array,
+ unsigned sizeof_init_array,
+ const void *array,
+ unsigned sizeof_array,
+ const device_property *original,
+ object_disposition disposition)
+{
+ device_property_entry *new_entry = NULL;
+ device_property *new_value = NULL;
+
+ /* find the list end */
+ device_property_entry **insertion_point = &me->properties;
+ while (*insertion_point != NULL) {
+ if (strcmp((*insertion_point)->value->name, property) == 0)
+ return;
+ insertion_point = &(*insertion_point)->next;
+ }
+
+ /* create a new value */
+ new_value = ZALLOC(device_property);
+ new_value->name = (char *) strdup(property);
+ new_value->type = type;
+ if (sizeof_array > 0) {
+ void *new_array = zalloc(sizeof_array);
+ memcpy(new_array, array, sizeof_array);
+ new_value->array = new_array;
+ new_value->sizeof_array = sizeof_array;
+ }
+ new_value->owner = me;
+ new_value->original = original;
+ new_value->disposition = disposition;
+
+ /* insert the value into the list */
+ new_entry = ZALLOC(device_property_entry);
+ *insertion_point = new_entry;
+ if (sizeof_init_array > 0) {
+ void *new_init_array = zalloc(sizeof_init_array);
+ memcpy(new_init_array, init_array, sizeof_init_array);
+ new_entry->init_array = new_init_array;
+ new_entry->sizeof_init_array = sizeof_init_array;
+ }
+ new_entry->value = new_value;
+}
+
+
+/* local - not available externally */
+STATIC_INLINE_DEVICE\
+(void)
+device_set_property(device *me,
+ const char *property,
+ device_property_type type,
+ const void *array,
+ int sizeof_array)
+{
+ /* find the property */
+ device_property_entry *entry = find_property_entry(me, property);
+ if (entry != NULL) {
+ /* existing property - update it */
+ void *new_array = 0;
+ device_property *value = entry->value;
+ /* check the type matches */
+ if (value->type != type)
+ device_error(me, "conflict between type of new and old value for property %s", property);
+ /* replace its value */
+ if (value->array != NULL)
+ zfree((void*)value->array);
+ new_array = (sizeof_array > 0
+ ? zalloc(sizeof_array)
+ : (void*)0);
+ value->array = new_array;
+ value->sizeof_array = sizeof_array;
+ if (sizeof_array > 0)
+ memcpy(new_array, array, sizeof_array);
+ return;
+ }
+ else {
+ /* new property - create it */
+ device_add_property(me, property, type,
+ NULL, 0, array, sizeof_array,
+ NULL, tempoary_object);
+ }
+}
+
+
+STATIC_INLINE_DEVICE\
+(void)
+clean_device_properties(device *me)
+{
+ device_property_entry **delete_point = &me->properties;
+ while (*delete_point != NULL) {
+ device_property_entry *current = *delete_point;
+ switch (current->value->disposition) {
+ case permenant_object:
+ /* zap the current value, will be initialized later */
+ ASSERT(current->init_array != NULL);
+ if (current->value->array != NULL) {
+ zfree((void*)current->value->array);
+ current->value->array = NULL;
+ }
+ delete_point = &(*delete_point)->next;
+ break;
+ case tempoary_object:
+ /* zap the actual property, was created during simulation run */
+ ASSERT(current->init_array == NULL);
+ *delete_point = current->next;
+ if (current->value->array != NULL)
+ zfree((void*)current->value->array);
+ zfree(current->value);
+ zfree(current);
+ break;
+ }
+ }
+}
+
+
+INLINE_DEVICE\
+(void)
+device_init_static_properties(device *me,
+ void *data)
+{
+ device_property_entry *property;
+ for (property = me->properties;
+ property != NULL;
+ property = property->next) {
+ ASSERT(property->init_array != NULL);
+ ASSERT(property->value->array == NULL);
+ ASSERT(property->value->disposition == permenant_object);
+ switch (property->value->type) {
+ case array_property:
+ case boolean_property:
+ case range_array_property:
+ case reg_array_property:
+ case string_property:
+ case string_array_property:
+ case integer_property:
+ /* delete the property, and replace it with the original */
+ device_set_property(me, property->value->name,
+ property->value->type,
+ property->init_array,
+ property->sizeof_init_array);
+ break;
+ case ihandle_property:
+ break;
+ }
+ }
+}
+
+
+INLINE_DEVICE\
+(void)
+device_init_runtime_properties(device *me,
+ void *data)
+{
+ device_property_entry *property;
+ for (property = me->properties;
+ property != NULL;
+ property = property->next) {
+ switch (property->value->disposition) {
+ case permenant_object:
+ switch (property->value->type) {
+ case ihandle_property:
+ {
+ device_instance *ihandle;
+ ihandle_runtime_property_spec spec;
+ ASSERT(property->init_array != NULL);
+ ASSERT(property->value->array == NULL);
+ device_find_ihandle_runtime_property(me, property->value->name, &spec);
+ ihandle = tree_instance(me, spec.full_path);
+ device_set_ihandle_property(me, property->value->name, ihandle);
+ break;
+ }
+ case array_property:
+ case boolean_property:
+ case range_array_property:
+ case integer_property:
+ case reg_array_property:
+ case string_property:
+ case string_array_property:
+ ASSERT(property->init_array != NULL);
+ ASSERT(property->value->array != NULL);
+ break;
+ }
+ break;
+ case tempoary_object:
+ ASSERT(property->init_array == NULL);
+ ASSERT(property->value->array != NULL);
+ break;
+ }
+ }
+}
+
+
+INLINE_DEVICE\
+(const device_property *)
+device_next_property(const device_property *property)
+{
+ /* find the property in the list */
+ device *owner = property->owner;
+ device_property_entry *entry = owner->properties;
+ while (entry != NULL && entry->value != property)
+ entry = entry->next;
+ /* now return the following property */
+ ASSERT(entry != NULL); /* must be a member! */
+ if (entry->next != NULL)
+ return entry->next->value;
+ else
+ return NULL;
+}
+
+
+INLINE_DEVICE\
+(const device_property *)
+device_find_property(device *me,
+ const char *property)
+{
+ if (me == NULL) {
+ return NULL;
+ }
+ else if (property == NULL || strcmp(property, "") == 0) {
+ if (me->properties == NULL)
+ return NULL;
+ else
+ return me->properties->value;
+ }
+ else {
+ device_property_entry *entry = find_property_entry(me, property);
+ if (entry != NULL)
+ return entry->value;
+ }
+ return NULL;
+}
+
+
+INLINE_DEVICE\
+(void)
+device_add_array_property(device *me,
+ const char *property,
+ const void *array,
+ int sizeof_array)
+{
+ device_add_property(me, property, array_property,
+ array, sizeof_array, array, sizeof_array,
+ NULL, permenant_object);
+}
+
+INLINE_DEVICE\
+(void)
+device_set_array_property(device *me,
+ const char *property,
+ const void *array,
+ int sizeof_array)
+{
+ device_set_property(me, property, array_property, array, sizeof_array);
+}
+
+INLINE_DEVICE\
+(const device_property *)
+device_find_array_property(device *me,
+ const char *property)
+{
+ const device_property *node;
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || node->type != array_property)
+ device_error(me, "property %s not found or of wrong type", property);
+ return node;
+}
+
+
+INLINE_DEVICE\
+(void)
+device_add_boolean_property(device *me,
+ const char *property,
+ int boolean)
+{
+ signed32 new_boolean = (boolean ? -1 : 0);
+ device_add_property(me, property, boolean_property,
+ &new_boolean, sizeof(new_boolean),
+ &new_boolean, sizeof(new_boolean),
+ NULL, permenant_object);
+}
+
+INLINE_DEVICE\
+(int)
+device_find_boolean_property(device *me,
+ const char *property)
+{
+ const device_property *node;
+ unsigned_cell boolean;
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || node->type != boolean_property)
+ device_error(me, "property %s not found or of wrong type", property);
+ ASSERT(sizeof(boolean) == node->sizeof_array);
+ memcpy(&boolean, node->array, sizeof(boolean));
+ return boolean;
+}
+
+
+INLINE_DEVICE\
+(void)
+device_add_ihandle_runtime_property(device *me,
+ const char *property,
+ const ihandle_runtime_property_spec *ihandle)
+{
+ /* enter the full path as the init array */
+ device_add_property(me, property, ihandle_property,
+ ihandle->full_path, strlen(ihandle->full_path) + 1,
+ NULL, 0,
+ NULL, permenant_object);
+}
+
+INLINE_DEVICE\
+(void)
+device_find_ihandle_runtime_property(device *me,
+ const char *property,
+ ihandle_runtime_property_spec *ihandle)
+{
+ device_property_entry *entry = find_property_entry(me, property);
+ TRACE(trace_devices,
+ ("device_find_ihandle_runtime_property(me=0x%lx, property=%s)\n",
+ (long)me, property));
+ if (entry == NULL
+ || entry->value->type != ihandle_property
+ || entry->value->disposition != permenant_object)
+ device_error(me, "property %s not found or of wrong type", property);
+ ASSERT(entry->init_array != NULL);
+ /* the full path */
+ ihandle->full_path = entry->init_array;
+}
+
+
+
+INLINE_DEVICE\
+(void)
+device_set_ihandle_property(device *me,
+ const char *property,
+ device_instance *ihandle)
+{
+ unsigned_cell cells;
+ cells = H2BE_cell(device_instance_to_external(ihandle));
+ device_set_property(me, property, ihandle_property,
+ &cells, sizeof(cells));
+
+}
+
+INLINE_DEVICE\
+(device_instance *)
+device_find_ihandle_property(device *me,
+ const char *property)
+{
+ const device_property *node;
+ unsigned_cell ihandle;
+ device_instance *instance;
+
+ node = device_find_property(me, property);
+ if (node == NULL || node->type != ihandle_property)
+ device_error(me, "property %s not found or of wrong type", property);
+ if (node->array == NULL)
+ device_error(me, "runtime property %s not yet initialized", property);
+
+ ASSERT(sizeof(ihandle) == node->sizeof_array);
+ memcpy(&ihandle, node->array, sizeof(ihandle));
+ instance = external_to_device_instance(me, BE2H_cell(ihandle));
+ ASSERT(instance != NULL);
+ return instance;
+}
+
+
+INLINE_DEVICE\
+(void)
+device_add_integer_property(device *me,
+ const char *property,
+ signed_cell integer)
+{
+ H2BE(integer);
+ device_add_property(me, property, integer_property,
+ &integer, sizeof(integer),
+ &integer, sizeof(integer),
+ NULL, permenant_object);
+}
+
+INLINE_DEVICE\
+(signed_cell)
+device_find_integer_property(device *me,
+ const char *property)
+{
+ const device_property *node;
+ signed_cell integer;
+ TRACE(trace_devices,
+ ("device_find_integer(me=0x%lx, property=%s)\n",
+ (long)me, property));
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || node->type != integer_property)
+ device_error(me, "property %s not found or of wrong type", property);
+ ASSERT(sizeof(integer) == node->sizeof_array);
+ memcpy(&integer, node->array, sizeof(integer));
+ return BE2H_cell(integer);
+}
+
+INLINE_DEVICE\
+(int)
+device_find_integer_array_property(device *me,
+ const char *property,
+ unsigned index,
+ signed_cell *integer)
+{
+ const device_property *node;
+ int sizeof_integer = sizeof(*integer);
+ signed_cell *cell;
+ TRACE(trace_devices,
+ ("device_find_integer(me=0x%lx, property=%s)\n",
+ (long)me, property));
+
+ /* check things sane */
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || (node->type != integer_property
+ && node->type != array_property))
+ device_error(me, "property %s not found or of wrong type", property);
+ if ((node->sizeof_array % sizeof_integer) != 0)
+ device_error(me, "property %s contains an incomplete number of cells", property);
+ if (node->sizeof_array <= sizeof_integer * index)
+ return 0;
+
+ /* Find and convert the value */
+ cell = ((signed_cell*)node->array) + index;
+ *integer = BE2H_cell(*cell);
+
+ return node->sizeof_array / sizeof_integer;
+}
+
+
+STATIC_INLINE_DEVICE\
+(unsigned_cell *)
+unit_address_to_cells(const device_unit *unit,
+ unsigned_cell *cell,
+ int nr_cells)
+{
+ int i;
+ ASSERT(nr_cells == unit->nr_cells);
+ for (i = 0; i < unit->nr_cells; i++) {
+ *cell = H2BE_cell(unit->cells[i]);
+ cell += 1;
+ }
+ return cell;
+}
+
+
+STATIC_INLINE_DEVICE\
+(const unsigned_cell *)
+cells_to_unit_address(const unsigned_cell *cell,
+ device_unit *unit,
+ int nr_cells)
+{
+ int i;
+ memset(unit, 0, sizeof(*unit));
+ unit->nr_cells = nr_cells;
+ for (i = 0; i < unit->nr_cells; i++) {
+ unit->cells[i] = BE2H_cell(*cell);
+ cell += 1;
+ }
+ return cell;
+}
+
+
+STATIC_INLINE_DEVICE\
+(unsigned)
+nr_range_property_cells(device *me,
+ int nr_ranges)
+{
+ return ((device_nr_address_cells(me)
+ + device_nr_address_cells(device_parent(me))
+ + device_nr_size_cells(me))
+ ) * nr_ranges;
+}
+
+INLINE_DEVICE\
+(void)
+device_add_range_array_property(device *me,
+ const char *property,
+ const range_property_spec *ranges,
+ unsigned nr_ranges)
+{
+ unsigned sizeof_cells = (nr_range_property_cells(me, nr_ranges)
+ * sizeof(unsigned_cell));
+ unsigned_cell *cells = zalloc(sizeof_cells);
+ unsigned_cell *cell;
+ int i;
+
+ /* copy the property elements over */
+ cell = cells;
+ for (i = 0; i < nr_ranges; i++) {
+ const range_property_spec *range = &ranges[i];
+ /* copy the child address */
+ cell = unit_address_to_cells(&range->child_address, cell,
+ device_nr_address_cells(me));
+ /* copy the parent address */
+ cell = unit_address_to_cells(&range->parent_address, cell,
+ device_nr_address_cells(device_parent(me)));
+ /* copy the size */
+ cell = unit_address_to_cells(&range->size, cell,
+ device_nr_size_cells(me));
+ }
+ ASSERT(cell == &cells[nr_range_property_cells(me, nr_ranges)]);
+
+ /* add it */
+ device_add_property(me, property, range_array_property,
+ cells, sizeof_cells,
+ cells, sizeof_cells,
+ NULL, permenant_object);
+
+ zfree(cells);
+}
+
+INLINE_DEVICE\
+(int)
+device_find_range_array_property(device *me,
+ const char *property,
+ unsigned index,
+ range_property_spec *range)
+{
+ const device_property *node;
+ unsigned sizeof_entry = (nr_range_property_cells(me, 1)
+ * sizeof(unsigned_cell));
+ const unsigned_cell *cells;
+
+ /* locate the property */
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || node->type != range_array_property)
+ device_error(me, "property %s not found or of wrong type", property);
+
+ /* aligned ? */
+ if ((node->sizeof_array % sizeof_entry) != 0)
+ device_error(me, "property %s contains an incomplete number of entries",
+ property);
+
+ /* within bounds? */
+ if (node->sizeof_array < sizeof_entry * (index + 1))
+ return 0;
+
+ /* find the range of interest */
+ cells = (unsigned_cell*)((char*)node->array + sizeof_entry * index);
+
+ /* copy the child address out - converting as we go */
+ cells = cells_to_unit_address(cells, &range->child_address,
+ device_nr_address_cells(me));
+
+ /* copy the parent address out - converting as we go */
+ cells = cells_to_unit_address(cells, &range->parent_address,
+ device_nr_address_cells(device_parent(me)));
+
+ /* copy the size - converting as we go */
+ cells = cells_to_unit_address(cells, &range->size,
+ device_nr_size_cells(me));
+
+ return node->sizeof_array / sizeof_entry;
+}
+
+
+STATIC_INLINE_DEVICE\
+(unsigned)
+nr_reg_property_cells(device *me,
+ int nr_regs)
+{
+ return (device_nr_address_cells(device_parent(me))
+ + device_nr_size_cells(device_parent(me))
+ ) * nr_regs;
+}
+
+INLINE_DEVICE\
+(void)
+device_add_reg_array_property(device *me,
+ const char *property,
+ const reg_property_spec *regs,
+ unsigned nr_regs)
+{
+ unsigned sizeof_cells = (nr_reg_property_cells(me, nr_regs)
+ * sizeof(unsigned_cell));
+ unsigned_cell *cells = zalloc(sizeof_cells);
+ unsigned_cell *cell;
+ int i;
+
+ /* copy the property elements over */
+ cell = cells;
+ for (i = 0; i < nr_regs; i++) {
+ const reg_property_spec *reg = &regs[i];
+ /* copy the address */
+ cell = unit_address_to_cells(&reg->address, cell,
+ device_nr_address_cells(device_parent(me)));
+ /* copy the size */
+ cell = unit_address_to_cells(&reg->size, cell,
+ device_nr_size_cells(device_parent(me)));
+ }
+ ASSERT(cell == &cells[nr_reg_property_cells(me, nr_regs)]);
+
+ /* add it */
+ device_add_property(me, property, reg_array_property,
+ cells, sizeof_cells,
+ cells, sizeof_cells,
+ NULL, permenant_object);
+
+ zfree(cells);
+}
+
+INLINE_DEVICE\
+(int)
+device_find_reg_array_property(device *me,
+ const char *property,
+ unsigned index,
+ reg_property_spec *reg)
+{
+ const device_property *node;
+ unsigned sizeof_entry = (nr_reg_property_cells(me, 1)
+ * sizeof(unsigned_cell));
+ const unsigned_cell *cells;
+
+ /* locate the property */
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || node->type != reg_array_property)
+ device_error(me, "property %s not found or of wrong type", property);
+
+ /* aligned ? */
+ if ((node->sizeof_array % sizeof_entry) != 0)
+ device_error(me, "property %s contains an incomplete number of entries",
+ property);
+
+ /* within bounds? */
+ if (node->sizeof_array < sizeof_entry * (index + 1))
+ return 0;
+
+ /* find the range of interest */
+ cells = (unsigned_cell*)((char*)node->array + sizeof_entry * index);
+
+ /* copy the address out - converting as we go */
+ cells = cells_to_unit_address(cells, &reg->address,
+ device_nr_address_cells(device_parent(me)));
+
+ /* copy the size out - converting as we go */
+ cells = cells_to_unit_address(cells, &reg->size,
+ device_nr_size_cells(device_parent(me)));
+
+ return node->sizeof_array / sizeof_entry;
+}
+
+
+INLINE_DEVICE\
+(void)
+device_add_string_property(device *me,
+ const char *property,
+ const char *string)
+{
+ device_add_property(me, property, string_property,
+ string, strlen(string) + 1,
+ string, strlen(string) + 1,
+ NULL, permenant_object);
+}
+
+INLINE_DEVICE\
+(const char *)
+device_find_string_property(device *me,
+ const char *property)
+{
+ const device_property *node;
+ const char *string;
+ node = device_find_property(me, property);
+ if (node == (device_property*)0
+ || node->type != string_property)
+ device_error(me, "property %s not found or of wrong type", property);
+ string = node->array;
+ ASSERT(strlen(string) + 1 == node->sizeof_array);
+ return string;
+}
+
+INLINE_DEVICE\
+(void)
+device_add_string_array_property(device *me,
+ const char *property,
+ const string_property_spec *strings,
+ unsigned nr_strings)
+{
+ int sizeof_array;
+ int string_nr;
+ char *array;
+ char *chp;
+ if (nr_strings == 0)
+ device_error(me, "property %s must be non-null", property);
+ /* total up the size of the needed array */
+ for (sizeof_array = 0, string_nr = 0;
+ string_nr < nr_strings;
+ string_nr ++) {
+ sizeof_array += strlen(strings[string_nr]) + 1;
+ }
+ /* create the array */
+ array = (char*)zalloc(sizeof_array);
+ chp = array;
+ for (string_nr = 0;
+ string_nr < nr_strings;
+ string_nr++) {
+ strcpy(chp, strings[string_nr]);
+ chp += strlen(chp) + 1;
+ }
+ ASSERT(chp == array + sizeof_array);
+ /* now enter it */
+ device_add_property(me, property, string_array_property,
+ array, sizeof_array,
+ array, sizeof_array,
+ NULL, permenant_object);
+}
+
+INLINE_DEVICE\
+(int)
+device_find_string_array_property(device *me,
+ const char *property,
+ unsigned index,
+ string_property_spec *string)
+{
+ const device_property *node;
+ node = device_find_property(me, property);
+ if (node == (device_property*)0)
+ device_error(me, "property %s not found", property);
+ switch (node->type) {
+ default:
+ device_error(me, "property %s of wrong type", property);
+ break;
+ case string_property:
+ if (index == 0) {
+ *string = node->array;
+ ASSERT(strlen(*string) + 1 == node->sizeof_array);
+ return 1;
+ }
+ break;
+ case array_property:
+ if (node->sizeof_array == 0
+ || ((char*)node->array)[node->sizeof_array - 1] != '\0')
+ device_error(me, "property %s invalid for string array", property);
+ /* FALL THROUGH */
+ case string_array_property:
+ ASSERT(node->sizeof_array > 0);
+ ASSERT(((char*)node->array)[node->sizeof_array - 1] == '\0');
+ {
+ const char *chp = node->array;
+ int nr_entries = 0;
+ /* count the number of strings, keeping an eye out for the one
+ we're looking for */
+ *string = chp;
+ do {
+ if (*chp == '\0') {
+ /* next string */
+ nr_entries++;
+ chp++;
+ if (nr_entries == index)
+ *string = chp;
+ }
+ else {
+ chp++;
+ }
+ } while (chp < (char*)node->array + node->sizeof_array);
+ if (index < nr_entries)
+ return nr_entries;
+ else {
+ *string = NULL;
+ return 0;
+ }
+ }
+ break;
+ }
+ return 0;
+}
+
+INLINE_DEVICE\
+(void)
+device_add_duplicate_property(device *me,
+ const char *property,
+ const device_property *original)
+{
+ device_property_entry *master;
+ TRACE(trace_devices,
+ ("device_add_duplicate_property(me=0x%lx, property=%s, ...)\n",
+ (long)me, property));
+ if (original->disposition != permenant_object)
+ device_error(me, "Can only duplicate permenant objects");
+ /* find the original's master */
+ master = original->owner->properties;
+ while (master->value != original) {
+ master = master->next;
+ ASSERT(master != NULL);
+ }
+ /* now duplicate it */
+ device_add_property(me, property,
+ original->type,
+ master->init_array, master->sizeof_init_array,
+ original->array, original->sizeof_array,
+ original, permenant_object);
+}
+
+
+
+/* Device Hardware: */
+
+INLINE_DEVICE\
+(unsigned)
+device_io_read_buffer(device *me,
+ void *dest,
+ int space,
+ unsigned_word addr,
+ unsigned nr_bytes,
+ cpu *processor,
+ unsigned_word cia)
+{
+ if (me->callback->io.read_buffer == NULL)
+ device_error(me, "no io.read_buffer method");
+ return me->callback->io.read_buffer(me, dest, space,
+ addr, nr_bytes,
+ processor, cia);
+}
+
+INLINE_DEVICE\
+(unsigned)
+device_io_write_buffer(device *me,
+ const void *source,
+ int space,
+ unsigned_word addr,
+ unsigned nr_bytes,
+ cpu *processor,
+ unsigned_word cia)
+{
+ if (me->callback->io.write_buffer == NULL)
+ device_error(me, "no io.write_buffer method");
+ return me->callback->io.write_buffer(me, source, space,
+ addr, nr_bytes,
+ processor, cia);
+}
+
+INLINE_DEVICE\
+(unsigned)
+device_dma_read_buffer(device *me,
+ void *dest,
+ int space,
+ unsigned_word addr,
+ unsigned nr_bytes)
+{
+ if (me->callback->dma.read_buffer == NULL)
+ device_error(me, "no dma.read_buffer method");
+ return me->callback->dma.read_buffer(me, dest, space,
+ addr, nr_bytes);
+}
+
+INLINE_DEVICE\
+(unsigned)
+device_dma_write_buffer(device *me,
+ const void *source,
+ int space,
+ unsigned_word addr,
+ unsigned nr_bytes,
+ int violate_read_only_section)
+{
+ if (me->callback->dma.write_buffer == NULL)
+ device_error(me, "no dma.write_buffer method");
+ return me->callback->dma.write_buffer(me, source, space,
+ addr, nr_bytes,
+ violate_read_only_section);
+}
+
+INLINE_DEVICE\
+(void)
+device_attach_address(device *me,
+ attach_type attach,
+ int space,
+ unsigned_word addr,
+ unsigned nr_bytes,
+ access_type access,
+ device *client) /*callback/default*/
+{
+ if (me->callback->address.attach == NULL)
+ device_error(me, "no address.attach method");
+ me->callback->address.attach(me, attach, space,
+ addr, nr_bytes, access, client);
+}
+
+INLINE_DEVICE\
+(void)
+device_detach_address(device *me,
+ attach_type attach,
+ int space,
+ unsigned_word addr,
+ unsigned nr_bytes,
+ access_type access,
+ device *client) /*callback/default*/
+{
+ if (me->callback->address.detach == NULL)
+ device_error(me, "no address.detach method");
+ me->callback->address.detach(me, attach, space,
+ addr, nr_bytes, access, client);
+}
+
+
+
+/* Interrupts: */
+
+INLINE_DEVICE(void)
+device_interrupt_event(device *me,
+ int my_port,
+ int level,
+ cpu *processor,
+ unsigned_word cia)
+{
+ int found_an_edge = 0;
+ device_interrupt_edge *edge;
+ /* device's interrupt lines directly connected */
+ for (edge = me->interrupt_destinations;
+ edge != NULL;
+ edge = edge->next) {
+ if (edge->my_port == my_port) {
+ if (edge->dest->callback->interrupt.event == NULL)
+ device_error(me, "no interrupt method");
+ edge->dest->callback->interrupt.event(edge->dest,
+ edge->dest_port,
+ me,
+ my_port,
+ level,
+ processor, cia);
+ found_an_edge = 1;
+ }
+ }
+ if (!found_an_edge) {
+ device_error(me, "No interrupt edge for port %d", my_port);
+ }
+}
+
+INLINE_DEVICE\
+(void)
+device_interrupt_attach(device *me,
+ int my_port,
+ device *dest,
+ int dest_port,
+ object_disposition disposition)
+{
+ attach_device_interrupt_edge(&me->interrupt_destinations,
+ my_port,
+ dest,
+ dest_port,
+ disposition);
+}
+
+INLINE_DEVICE\
+(void)
+device_interrupt_detach(device *me,
+ int my_port,
+ device *dest,
+ int dest_port)
+{
+ detach_device_interrupt_edge(me,
+ &me->interrupt_destinations,
+ my_port,
+ dest,
+ dest_port);
+}
+
+INLINE_DEVICE\
+(void)
+device_interrupt_traverse(device *me,
+ device_interrupt_traverse_function *handler,
+ void *data)
+{
+ device_interrupt_edge *interrupt_edge;
+ for (interrupt_edge = me->interrupt_destinations;
+ interrupt_edge != NULL;
+ interrupt_edge = interrupt_edge->next) {
+ handler(me, interrupt_edge->my_port,
+ interrupt_edge->dest, interrupt_edge->dest_port,
+ data);
+ }
+}
+
+INLINE_DEVICE\
+(int)
+device_interrupt_decode(device *me,
+ const char *port_name,
+ port_direction direction)
+{
+ if (port_name == NULL || port_name[0] == '\0')
+ return 0;
+ if (isdigit(port_name[0])) {
+ return strtoul(port_name, NULL, 0);
+ }
+ else {
+ const device_interrupt_port_descriptor *ports =
+ me->callback->interrupt.ports;
+ if (ports != NULL) {
+ while (ports->name != NULL) {
+ if (ports->direction == bidirect_port
+ || ports->direction == direction) {
+ if (ports->nr_ports > 0) {
+ int len = strlen(ports->name);
+ if (strncmp(port_name, ports->name, len) == 0) {
+ if (port_name[len] == '\0')
+ return ports->number;
+ else if(isdigit(port_name[len])) {
+ int port = ports->number + strtoul(&port_name[len], NULL, 0);
+ if (port >= ports->number + ports->nr_ports)
+ device_error(me, "Interrupt port %s out of range",
+ port_name);
+ return port;
+ }
+ }
+ }
+ else if (strcmp(port_name, ports->name) == 0)
+ return ports->number;
+ }
+ ports++;
+ }
+ }
+ }
+ device_error(me, "Unreconized interrupt port %s", port_name);
+ return 0;
+}
+
+INLINE_DEVICE\
+(int)
+device_interrupt_encode(device *me,
+ int port_number,
+ char *buf,
+ int sizeof_buf,
+ port_direction direction)
+{
+ const device_interrupt_port_descriptor *ports = NULL;
+ ports = me->callback->interrupt.ports;
+ if (ports != NULL) {
+ while (ports->name != NULL) {
+ if (ports->direction == bidirect_port
+ || ports->direction == direction) {
+ if (ports->nr_ports > 0) {
+ if (port_number >= ports->number
+ && port_number < ports->number + ports->nr_ports) {
+ strcpy(buf, ports->name);
+ sprintf(buf + strlen(buf), "%d", port_number - ports->number);
+ if (strlen(buf) >= sizeof_buf)
+ error("device_interrupt_encode: buffer overflow");
+ return strlen(buf);
+ }
+ }
+ else {
+ if (ports->number == port_number) {
+ if (strlen(ports->name) >= sizeof_buf)
+ error("device_interrupt_encode: buffer overflow");
+ strcpy(buf, ports->name);
+ return strlen(buf);
+ }
+ }
+ }
+ ports++;
+ }
+ }
+ sprintf(buf, "%d", port_number);
+ if (strlen(buf) >= sizeof_buf)
+ error("device_interrupt_encode: buffer overflow");
+ return strlen(buf);
+}
+
+
+
+/* IOCTL: */
+
+EXTERN_DEVICE\
+(int)
+device_ioctl(device *me,
+ cpu *processor,
+ unsigned_word cia,
+ device_ioctl_request request,
+ ...)
+{
+ int status;
+ va_list ap;
+ va_start(ap, request);
+ if (me->callback->ioctl == NULL)
+ device_error(me, "no ioctl method");
+ status = me->callback->ioctl(me, processor, cia, request, ap);
+ va_end(ap);
+ return status;
+}
+
+
+
+/* I/O */
+
+EXTERN_DEVICE\
+(void volatile)
+device_error(device *me,
+ const char *fmt,
+ ...)
+{
+ char message[1024];
+ va_list ap;
+ /* format the message */
+ va_start(ap, fmt);
+ vsprintf(message, fmt, ap);
+ va_end(ap);
+ /* sanity check */
+ if (strlen(message) >= sizeof(message))
+ error("device_error: buffer overflow");
+ if (me == NULL)
+ error("device: %s", message);
+ else if (me->path != NULL && me->path[0] != '\0')
+ error("%s: %s", me->path, message);
+ else if (me->name != NULL && me->name[0] != '\0')
+ error("%s: %s", me->name, message);
+ else
+ error("device: %s", message);
+ while(1);
+}
+
+INLINE_DEVICE\
+(int)
+device_trace(device *me)
+{
+ return me->trace;
+}
+
+
+/* External representation */
+
+INLINE_DEVICE\
+(device *)
+external_to_device(device *tree_member,
+ unsigned_cell phandle)
+{
+ device *me = cap_internal(tree_member->phandles, phandle);
+ return me;
+}
+
+INLINE_DEVICE\
+(unsigned_cell)
+device_to_external(device *me)
+{
+ unsigned_cell phandle = cap_external(me->phandles, me);
+ return phandle;
+}
+
+INLINE_DEVICE\
+(device_instance *)
+external_to_device_instance(device *tree_member,
+ unsigned_cell ihandle)
+{
+ device_instance *instance = cap_internal(tree_member->ihandles, ihandle);
+ return instance;
+}
+
+INLINE_DEVICE\
+(unsigned_cell)
+device_instance_to_external(device_instance *instance)
+{
+ unsigned_cell ihandle = cap_external(instance->owner->ihandles, instance);
+ return ihandle;
+}
+
+
+/* Map onto the event functions */
+
+INLINE_DEVICE\
+(event_entry_tag)
+device_event_queue_schedule(device *me,
+ signed64 delta_time,
+ device_event_handler *handler,
+ void *data)
+{
+ return event_queue_schedule(psim_event_queue(me->system),
+ delta_time,
+ handler,
+ data);
+}
+
+INLINE_DEVICE\
+(void)
+device_event_queue_deschedule(device *me,
+ event_entry_tag event_to_remove)
+{
+ event_queue_deschedule(psim_event_queue(me->system),
+ event_to_remove);
+}
+
+INLINE_DEVICE\
+(signed64)
+device_event_queue_time(device *me)
+{
+ return event_queue_time(psim_event_queue(me->system));
+}
+
+
+/* Initialization: */
+
+
+INLINE_DEVICE\
+(void)
+device_clean(device *me,
+ void *data)
+{
+ psim *system;
+ system = (psim*)data;
+ TRACE(trace_device_init, ("device_clean - initializing %s", me->path));
+ clean_device_interrupt_edges(&me->interrupt_destinations);
+ clean_device_instances(me);
+ clean_device_properties(me);
+}
+
+/* Device initialization: */
+
+INLINE_DEVICE\
+(void)
+device_init_address(device *me,
+ void *data)
+{
+ psim *system = (psim*)data;
+ int nr_address_cells;
+ int nr_size_cells;
+ TRACE(trace_device_init, ("device_init_address - initializing %s", me->path));
+
+ /* ensure the cap database is valid */
+ if (me->parent == NULL) {
+ cap_init(me->ihandles);
+ cap_init(me->phandles);
+ }
+
+ /* some basics */
+ me->system = system; /* misc things not known until now */
+ me->trace = (device_find_property(me, "trace")
+ ? device_find_integer_property(me, "trace")
+ : 0);
+
+ /* Ensure that the first address found in the reg property matches
+ anything that was specified as part of the devices name */
+ if (device_find_property(me, "reg") != NULL) {
+ reg_property_spec unit;
+ device_find_reg_array_property(me, "reg", 0, &unit);
+ if (memcmp(device_unit_address(me), &unit.address, sizeof(unit.address))
+ != 0)
+ device_error(me, "Unit address as specified by the reg property in conflict with the value previously specified in the devices path");
+ }
+
+ /* ensure that the devices #address/size-cells is consistent */
+ nr_address_cells = device_nr_address_cells(me);
+ if (device_find_property(me, "#address-cells") != NULL
+ && (nr_address_cells
+ != device_find_integer_property(me, "#address-cells")))
+ device_error(me, "#address-cells property used before defined");
+ nr_size_cells = device_nr_size_cells(me);
+ if (device_find_property(me, "#size-cells") != NULL
+ && (nr_size_cells
+ != device_find_integer_property(me, "#size-cells")))
+ device_error(me, "#size-cells property used before defined");
+
+ /* now init it */
+ if (me->callback->init.address != NULL)
+ me->callback->init.address(me);
+}
+
+INLINE_DEVICE\
+(void)
+device_init_data(device *me,
+ void *data)
+{
+ TRACE(trace_device_init, ("device_init_data - initializing %s", me->path));
+ if (me->callback->init.data != NULL)
+ me->callback->init.data(me);
+}
+
+#endif /* _DEVICE_C_ */
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