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authorPaolo Bonzini <pbonzini@redhat.com>2013-03-01 13:59:19 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-04-08 18:13:12 +0200
commit49ab747f668f421138d5b40d83fa279c4c5e278d (patch)
tree943225a04eac885aed038731adf058f2250a2f40 /hw/core/empty_slot.c
parentce3b494cb504f96992f2d37ebc8f56deed202b06 (diff)
hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving them to subdirectories of hw/. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/core/empty_slot.c')
-rw-r--r--hw/core/empty_slot.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/hw/core/empty_slot.c b/hw/core/empty_slot.c
new file mode 100644
index 0000000000..5234a4ddc6
--- /dev/null
+++ b/hw/core/empty_slot.c
@@ -0,0 +1,98 @@
+/*
+ * QEMU Empty Slot
+ *
+ * The empty_slot device emulates known to a bus but not connected devices.
+ *
+ * Copyright (c) 2010 Artyom Tarasenko
+ *
+ * This code is licensed under the GNU GPL v2 or (at your option) any later
+ * version.
+ */
+
+#include "hw/hw.h"
+#include "hw/sysbus.h"
+#include "hw/empty_slot.h"
+
+//#define DEBUG_EMPTY_SLOT
+
+#ifdef DEBUG_EMPTY_SLOT
+#define DPRINTF(fmt, ...) \
+ do { printf("empty_slot: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) do {} while (0)
+#endif
+
+typedef struct EmptySlot {
+ SysBusDevice busdev;
+ MemoryRegion iomem;
+ uint64_t size;
+} EmptySlot;
+
+static uint64_t empty_slot_read(void *opaque, hwaddr addr,
+ unsigned size)
+{
+ DPRINTF("read from " TARGET_FMT_plx "\n", addr);
+ return 0;
+}
+
+static void empty_slot_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ DPRINTF("write 0x%x to " TARGET_FMT_plx "\n", (unsigned)val, addr);
+}
+
+static const MemoryRegionOps empty_slot_ops = {
+ .read = empty_slot_read,
+ .write = empty_slot_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
+
+void empty_slot_init(hwaddr addr, uint64_t slot_size)
+{
+ if (slot_size > 0) {
+ /* Only empty slots larger than 0 byte need handling. */
+ DeviceState *dev;
+ SysBusDevice *s;
+ EmptySlot *e;
+
+ dev = qdev_create(NULL, "empty_slot");
+ s = SYS_BUS_DEVICE(dev);
+ e = FROM_SYSBUS(EmptySlot, s);
+ e->size = slot_size;
+
+ qdev_init_nofail(dev);
+
+ sysbus_mmio_map(s, 0, addr);
+ }
+}
+
+static int empty_slot_init1(SysBusDevice *dev)
+{
+ EmptySlot *s = FROM_SYSBUS(EmptySlot, dev);
+
+ memory_region_init_io(&s->iomem, &empty_slot_ops, s,
+ "empty-slot", s->size);
+ sysbus_init_mmio(dev, &s->iomem);
+ return 0;
+}
+
+static void empty_slot_class_init(ObjectClass *klass, void *data)
+{
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = empty_slot_init1;
+}
+
+static const TypeInfo empty_slot_info = {
+ .name = "empty_slot",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(EmptySlot),
+ .class_init = empty_slot_class_init,
+};
+
+static void empty_slot_register_types(void)
+{
+ type_register_static(&empty_slot_info);
+}
+
+type_init(empty_slot_register_types)