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-rw-r--r--hw/audio/pcspk.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/hw/audio/pcspk.c b/hw/audio/pcspk.c
index 34e0df7..d844e85 100644
--- a/hw/audio/pcspk.c
+++ b/hw/audio/pcspk.c
@@ -35,8 +35,11 @@
#define PCSPK_MAX_FREQ (PCSPK_SAMPLE_RATE >> 1)
#define PCSPK_MIN_COUNT ((PIT_FREQ + PCSPK_MAX_FREQ - 1) / PCSPK_MAX_FREQ)
+#define PC_SPEAKER(obj) OBJECT_CHECK(PCSpkState, (obj), TYPE_PC_SPEAKER)
+
typedef struct {
- ISADevice dev;
+ ISADevice parent_obj;
+
MemoryRegion ioport;
uint32_t iobase;
uint8_t sample_buf[PCSPK_BUF_LEN];
@@ -161,7 +164,7 @@ static const MemoryRegionOps pcspk_io_ops = {
static int pcspk_initfn(ISADevice *dev)
{
- PCSpkState *s = DO_UPCAST(PCSpkState, dev, dev);
+ PCSpkState *s = PC_SPEAKER(dev);
memory_region_init_io(&s->ioport, &pcspk_io_ops, s, "elcr", 1);
isa_register_ioport(dev, &s->ioport, s->iobase);
@@ -188,7 +191,7 @@ static void pcspk_class_initfn(ObjectClass *klass, void *data)
}
static const TypeInfo pcspk_info = {
- .name = "isa-pcspk",
+ .name = TYPE_PC_SPEAKER,
.parent = TYPE_ISA_DEVICE,
.instance_size = sizeof(PCSpkState),
.class_init = pcspk_class_initfn,
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