Initial import of qemu-2.4.1HEADmaster

1 files changed, 43 insertions, 0 deletions

diff --git a/hw/audio/lm4549.h b/hw/audio/lm4549.h
new file mode 100644
index 00000000..812a7a44
--- /dev/null
+++ b/hw/audio/lm4549.h
@@ -0,0 +1,43 @@
+/*
+ * LM4549 Audio Codec Interface
+ *
+ * Copyright (c) 2011
+ * Written by Mathieu Sonet - www.elasticsheep.com
+ *
+ * This code is licensed under the GPL.
+ *
+ * *****************************************************************
+ */
+
+#ifndef HW_LM4549_H
+#define HW_LM4549_H
+
+#include "audio/audio.h"
+
+typedef void (*lm4549_callback)(void *opaque);
+
+#define LM4549_BUFFER_SIZE (512 * 2) /* 512 16-bit stereo samples */
+
+
+typedef struct {
+    QEMUSoundCard card;
+    SWVoiceOut *voice;
+    uint32_t voice_is_active;
+
+    uint16_t regfile[128];
+    lm4549_callback data_req_cb;
+    void *opaque;
+
+    uint16_t buffer[LM4549_BUFFER_SIZE];
+    uint32_t buffer_level;
+} lm4549_state;
+
+extern const VMStateDescription vmstate_lm4549_state;
+
+
+void lm4549_init(lm4549_state *s, lm4549_callback data_req, void *opaque);
+uint32_t lm4549_read(lm4549_state *s, hwaddr offset);
+void lm4549_write(lm4549_state *s, hwaddr offset, uint32_t value);
+uint32_t lm4549_write_samples(lm4549_state *s, uint32_t left, uint32_t right);
+
+#endif /* #ifndef HW_LM4549_H */