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f58f25599b
QEMU currently shows some unexpected behavior when the user trys to do a "device_add digic" on an unrelated ARM machine like integratorcp in "-nographic" mode (the device_add command does not immediately return to the monitor prompt), and trying to "device_del" the device later results in a "qemu/qdev-monitor.c:872:qdev_unplug: assertion failed: (hotplug_ctrl)" error condition. Looking at the realize function of the device, it uses serial_hds directly and this means that the device can not be added a second time, so let's simply mark it with "user_creatable = false" now. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
121 lines
3.5 KiB
C
121 lines
3.5 KiB
C
/*
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* QEMU model of the Canon DIGIC SoC.
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*
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* Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
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*
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* This model is based on reverse engineering efforts
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* made by CHDK (http://chdk.wikia.com) and
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* Magic Lantern (http://www.magiclantern.fm) projects
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* contributors.
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*
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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 2 of the License, or
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* (at your option) any later version.
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*
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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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*
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "hw/arm/digic.h"
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#include "sysemu/sysemu.h"
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#define DIGIC4_TIMER_BASE(n) (0xc0210000 + (n) * 0x100)
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#define DIGIC_UART_BASE 0xc0800000
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static void digic_init(Object *obj)
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{
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DigicState *s = DIGIC(obj);
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DeviceState *dev;
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int i;
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object_initialize(&s->cpu, sizeof(s->cpu), "arm946-" TYPE_ARM_CPU);
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object_property_add_child(obj, "cpu", OBJECT(&s->cpu), NULL);
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for (i = 0; i < DIGIC4_NB_TIMERS; i++) {
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#define DIGIC_TIMER_NAME_MLEN 11
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char name[DIGIC_TIMER_NAME_MLEN];
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object_initialize(&s->timer[i], sizeof(s->timer[i]), TYPE_DIGIC_TIMER);
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dev = DEVICE(&s->timer[i]);
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qdev_set_parent_bus(dev, sysbus_get_default());
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snprintf(name, DIGIC_TIMER_NAME_MLEN, "timer[%d]", i);
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object_property_add_child(obj, name, OBJECT(&s->timer[i]), NULL);
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}
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object_initialize(&s->uart, sizeof(s->uart), TYPE_DIGIC_UART);
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dev = DEVICE(&s->uart);
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qdev_set_parent_bus(dev, sysbus_get_default());
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object_property_add_child(obj, "uart", OBJECT(&s->uart), NULL);
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}
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static void digic_realize(DeviceState *dev, Error **errp)
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{
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DigicState *s = DIGIC(dev);
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Error *err = NULL;
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SysBusDevice *sbd;
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int i;
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object_property_set_bool(OBJECT(&s->cpu), true, "reset-hivecs", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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object_property_set_bool(OBJECT(&s->cpu), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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for (i = 0; i < DIGIC4_NB_TIMERS; i++) {
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object_property_set_bool(OBJECT(&s->timer[i]), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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sbd = SYS_BUS_DEVICE(&s->timer[i]);
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sysbus_mmio_map(sbd, 0, DIGIC4_TIMER_BASE(i));
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}
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qdev_prop_set_chr(DEVICE(&s->uart), "chardev", serial_hds[0]);
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object_property_set_bool(OBJECT(&s->uart), true, "realized", &err);
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if (err != NULL) {
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error_propagate(errp, err);
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return;
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}
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sbd = SYS_BUS_DEVICE(&s->uart);
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sysbus_mmio_map(sbd, 0, DIGIC_UART_BASE);
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}
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static void digic_class_init(ObjectClass *oc, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(oc);
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dc->realize = digic_realize;
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/* Reason: Uses serial_hds in the realize function --> not usable twice */
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dc->user_creatable = false;
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}
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static const TypeInfo digic_type_info = {
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.name = TYPE_DIGIC,
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.parent = TYPE_DEVICE,
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.instance_size = sizeof(DigicState),
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.instance_init = digic_init,
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.class_init = digic_class_init,
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};
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static void digic_register_types(void)
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{
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type_register_static(&digic_type_info);
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}
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type_init(digic_register_types)
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