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/*
* QEMU model of the Canon DIGIC SoC.
*
* Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
*
* This model is based on reverse engineering efforts
* made by CHDK (http://chdk.wikia.com) and
* Magic Lantern (http://www.magiclantern.fm) projects
* contributors.
*
* 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.
*
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/module.h"
#include "hw/arm/digic.h"
#include "hw/qdev-properties.h"
#include "sysemu/sysemu.h"
#define DIGIC4_TIMER_BASE(n) (0xc0210000 + (n) * 0x100)
#define DIGIC_UART_BASE 0xc0800000
static void digic_init(Object *obj)
{
DigicState *s = DIGIC(obj);
int i;
object_initialize_child(obj, "cpu", &s->cpu, ARM_CPU_TYPE_NAME("arm946"));
for (i = 0; i < DIGIC4_NB_TIMERS; i++) {
#define DIGIC_TIMER_NAME_MLEN 11
char name[DIGIC_TIMER_NAME_MLEN];
snprintf(name, DIGIC_TIMER_NAME_MLEN, "timer[%d]", i);
object_initialize_child(obj, name, &s->timer[i], TYPE_DIGIC_TIMER);
}
object_initialize_child(obj, "uart", &s->uart, TYPE_DIGIC_UART);
}
static void digic_realize(DeviceState *dev, Error **errp)
{
DigicState *s = DIGIC(dev);
Error *err = NULL;
SysBusDevice *sbd;
int i;
object_property_set_bool(OBJECT(&s->cpu), "reset-hivecs", true, &err);
if (err != NULL) {
error_propagate(errp, err);
return;
}
if (!qdev_realize(DEVICE(&s->cpu), NULL, &err)) {
error_propagate(errp, err);
return;
}
for (i = 0; i < DIGIC4_NB_TIMERS; i++) {
if (!sysbus_realize(SYS_BUS_DEVICE(&s->timer[i]), &err)) {
error_propagate(errp, err);
return;
}
sbd = SYS_BUS_DEVICE(&s->timer[i]);
sysbus_mmio_map(sbd, 0, DIGIC4_TIMER_BASE(i));
}
qdev_prop_set_chr(DEVICE(&s->uart), "chardev", serial_hd(0));
if (!sysbus_realize(SYS_BUS_DEVICE(&s->uart), &err)) {
error_propagate(errp, err);
return;
}
sbd = SYS_BUS_DEVICE(&s->uart);
sysbus_mmio_map(sbd, 0, DIGIC_UART_BASE);
}
static void digic_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
dc->realize = digic_realize;
/* Reason: Uses serial_hds in the realize function --> not usable twice */
dc->user_creatable = false;
}
static const TypeInfo digic_type_info = {
.name = TYPE_DIGIC,
.parent = TYPE_DEVICE,
.instance_size = sizeof(DigicState),
.instance_init = digic_init,
.class_init = digic_class_init,
};
static void digic_register_types(void)
{
type_register_static(&digic_type_info);
}
type_init(digic_register_types)
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