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-rw-r--r--src/hw/ipack/ipack.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/src/hw/ipack/ipack.c b/src/hw/ipack/ipack.c
new file mode 100644
index 0000000..59bfe286
--- /dev/null
+++ b/src/hw/ipack/ipack.c
@@ -0,0 +1,119 @@
+/*
+ * QEMU IndustryPack emulation
+ *
+ * Copyright (C) 2012 Igalia, S.L.
+ * Author: Alberto Garcia <agarcia@igalia.com>
+ *
+ * This code is licensed under the GNU GPL v2 or (at your option) any
+ * later version.
+ */
+
+#include "hw/ipack/ipack.h"
+
+IPackDevice *ipack_device_find(IPackBus *bus, int32_t slot)
+{
+ BusChild *kid;
+
+ QTAILQ_FOREACH(kid, &BUS(bus)->children, sibling) {
+ DeviceState *qdev = kid->child;
+ IPackDevice *ip = IPACK_DEVICE(qdev);
+ if (ip->slot == slot) {
+ return ip;
+ }
+ }
+ return NULL;
+}
+
+void ipack_bus_new_inplace(IPackBus *bus, size_t bus_size,
+ DeviceState *parent,
+ const char *name, uint8_t n_slots,
+ qemu_irq_handler handler)
+{
+ qbus_create_inplace(bus, bus_size, TYPE_IPACK_BUS, parent, name);
+ bus->n_slots = n_slots;
+ bus->set_irq = handler;
+}
+
+static void ipack_device_realize(DeviceState *dev, Error **errp)
+{
+ IPackDevice *idev = IPACK_DEVICE(dev);
+ IPackBus *bus = IPACK_BUS(qdev_get_parent_bus(dev));
+ IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev);
+
+ if (idev->slot < 0) {
+ idev->slot = bus->free_slot;
+ }
+ if (idev->slot >= bus->n_slots) {
+ error_setg(errp, "Only %" PRIu8 " slots available.", bus->n_slots);
+ return;
+ }
+ bus->free_slot = idev->slot + 1;
+
+ idev->irq = qemu_allocate_irqs(bus->set_irq, idev, 2);
+
+ k->realize(dev, errp);
+}
+
+static void ipack_device_unrealize(DeviceState *dev, Error **errp)
+{
+ IPackDevice *idev = IPACK_DEVICE(dev);
+ IPackDeviceClass *k = IPACK_DEVICE_GET_CLASS(dev);
+ Error *err = NULL;
+
+ if (k->unrealize) {
+ k->unrealize(dev, &err);
+ error_propagate(errp, err);
+ return;
+ }
+
+ qemu_free_irqs(idev->irq, 2);
+}
+
+static Property ipack_device_props[] = {
+ DEFINE_PROP_INT32("slot", IPackDevice, slot, -1),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void ipack_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *k = DEVICE_CLASS(klass);
+
+ set_bit(DEVICE_CATEGORY_INPUT, k->categories);
+ k->bus_type = TYPE_IPACK_BUS;
+ k->realize = ipack_device_realize;
+ k->unrealize = ipack_device_unrealize;
+ k->props = ipack_device_props;
+}
+
+const VMStateDescription vmstate_ipack_device = {
+ .name = "ipack_device",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_INT32(slot, IPackDevice),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+static const TypeInfo ipack_device_info = {
+ .name = TYPE_IPACK_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(IPackDevice),
+ .class_size = sizeof(IPackDeviceClass),
+ .class_init = ipack_device_class_init,
+ .abstract = true,
+};
+
+static const TypeInfo ipack_bus_info = {
+ .name = TYPE_IPACK_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(IPackBus),
+};
+
+static void ipack_register_types(void)
+{
+ type_register_static(&ipack_device_info);
+ type_register_static(&ipack_bus_info);
+}
+
+type_init(ipack_register_types)
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