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/*
* QEMU Macintosh Nubus
*
* Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qemu/datadir.h"
#include "exec/target_page.h"
#include "hw/irq.h"
#include "hw/loader.h"
#include "hw/nubus/nubus.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
void nubus_set_irq(NubusDevice *nd, int level)
{
NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(DEVICE(nd)));
qemu_set_irq(nubus->irqs[nd->slot], level);
}
static void nubus_device_realize(DeviceState *dev, Error **errp)
{
NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(dev));
NubusDevice *nd = NUBUS_DEVICE(dev);
char *name, *path;
hwaddr slot_offset;
int64_t size, align_size;
uint8_t *rom_ptr;
int ret;
if (nd->slot < 0 || nd->slot >= NUBUS_SLOT_NB) {
error_setg(errp,
"'slot' value %d out of range (must be between 0 and %d)",
nd->slot, NUBUS_SLOT_NB - 1);
return;
}
/* Super */
slot_offset = nd->slot * NUBUS_SUPER_SLOT_SIZE;
name = g_strdup_printf("nubus-super-slot-%x", nd->slot);
memory_region_init(&nd->super_slot_mem, OBJECT(dev), name,
NUBUS_SUPER_SLOT_SIZE);
memory_region_add_subregion(&nubus->super_slot_io, slot_offset,
&nd->super_slot_mem);
g_free(name);
/* Normal */
slot_offset = nd->slot * NUBUS_SLOT_SIZE;
name = g_strdup_printf("nubus-slot-%x", nd->slot);
memory_region_init(&nd->slot_mem, OBJECT(dev), name, NUBUS_SLOT_SIZE);
memory_region_add_subregion(&nubus->slot_io, slot_offset,
&nd->slot_mem);
g_free(name);
/* Declaration ROM */
if (nd->romfile != NULL) {
path = qemu_find_file(QEMU_FILE_TYPE_BIOS, nd->romfile);
if (path == NULL) {
path = g_strdup(nd->romfile);
}
size = get_image_size(path);
if (size < 0) {
error_setg(errp, "failed to find romfile \"%s\"", nd->romfile);
g_free(path);
return;
} else if (size == 0) {
error_setg(errp, "romfile \"%s\" is empty", nd->romfile);
g_free(path);
return;
} else if (size > NUBUS_DECL_ROM_MAX_SIZE) {
error_setg(errp, "romfile \"%s\" too large (maximum size 128K)",
nd->romfile);
g_free(path);
return;
}
name = g_strdup_printf("nubus-slot-%x-declaration-rom", nd->slot);
/*
* Ensure ROM memory region is aligned to target page size regardless
* of the size of the Declaration ROM image
*/
align_size = ROUND_UP(size, qemu_target_page_size());
memory_region_init_rom(&nd->decl_rom, OBJECT(dev), name, align_size,
&error_abort);
rom_ptr = memory_region_get_ram_ptr(&nd->decl_rom);
ret = load_image_size(path, rom_ptr + (uintptr_t)(align_size - size),
size);
g_free(path);
g_free(name);
if (ret < 0) {
error_setg(errp, "could not load romfile \"%s\"", nd->romfile);
return;
}
memory_region_add_subregion(&nd->slot_mem, NUBUS_SLOT_SIZE - align_size,
&nd->decl_rom);
}
}
static Property nubus_device_properties[] = {
DEFINE_PROP_INT32("slot", NubusDevice, slot, -1),
DEFINE_PROP_STRING("romfile", NubusDevice, romfile),
DEFINE_PROP_END_OF_LIST()
};
static void nubus_device_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = nubus_device_realize;
dc->bus_type = TYPE_NUBUS_BUS;
device_class_set_props(dc, nubus_device_properties);
}
static const TypeInfo nubus_device_type_info = {
.name = TYPE_NUBUS_DEVICE,
.parent = TYPE_DEVICE,
.abstract = true,
.instance_size = sizeof(NubusDevice),
.class_init = nubus_device_class_init,
};
static void nubus_register_types(void)
{
type_register_static(&nubus_device_type_info);
}
type_init(nubus_register_types)
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