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Diffstat (limited to 'src/mess/audio/upd1771.h')
-rw-r--r--src/mess/audio/upd1771.h26
1 files changed, 25 insertions, 1 deletions
diff --git a/src/mess/audio/upd1771.h b/src/mess/audio/upd1771.h
index ed0f3f947ab..d7ae7dae91f 100644
--- a/src/mess/audio/upd1771.h
+++ b/src/mess/audio/upd1771.h
@@ -24,7 +24,31 @@ struct _upd1771_interface
MACROS / CONSTANTS
***************************************************************************/
-DECLARE_LEGACY_SOUND_DEVICE(UPD1771C, upd1771c);
+class upd1771c_device : public device_t,
+ public device_sound_interface
+{
+public:
+ upd1771c_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+ ~upd1771c_device() { global_free(m_token); }
+
+ // access to legacy token
+ void *token() const { assert(m_token != NULL); return m_token; }
+protected:
+ // device-level overrides
+ virtual void device_config_complete();
+ virtual void device_start();
+ virtual void device_stop();
+ virtual void device_reset();
+
+ // sound stream update overrides
+ virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
+private:
+ // internal state
+ void *m_token;
+};
+
+extern const device_type UPD1771C;
+
/***************************************************************************