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d028d02d MS |
1 | /* |
2 | * LM4549 Audio Codec Interface | |
3 | * | |
4 | * Copyright (c) 2011 | |
5 | * Written by Mathieu Sonet - www.elasticsheep.com | |
6 | * | |
4d8db4e4 | 7 | * This code is licensed under the GPL. |
d028d02d MS |
8 | * |
9 | * ***************************************************************** | |
10 | */ | |
11 | ||
12 | #ifndef HW_LM4549_H | |
13 | #define HW_LM4549_H | |
14 | ||
15 | #include "audio/audio.h" | |
d4842052 | 16 | #include "exec/hwaddr.h" |
d028d02d MS |
17 | |
18 | typedef void (*lm4549_callback)(void *opaque); | |
19 | ||
20 | #define LM4549_BUFFER_SIZE (512 * 2) /* 512 16-bit stereo samples */ | |
21 | ||
22 | ||
23 | typedef struct { | |
24 | QEMUSoundCard card; | |
25 | SWVoiceOut *voice; | |
26 | uint32_t voice_is_active; | |
27 | ||
28 | uint16_t regfile[128]; | |
29 | lm4549_callback data_req_cb; | |
30 | void *opaque; | |
31 | ||
32 | uint16_t buffer[LM4549_BUFFER_SIZE]; | |
33 | uint32_t buffer_level; | |
34 | } lm4549_state; | |
35 | ||
36 | extern const VMStateDescription vmstate_lm4549_state; | |
37 | ||
38 | ||
39 | void lm4549_init(lm4549_state *s, lm4549_callback data_req, void *opaque); | |
a8170e5e AK |
40 | uint32_t lm4549_read(lm4549_state *s, hwaddr offset); |
41 | void lm4549_write(lm4549_state *s, hwaddr offset, uint32_t value); | |
d028d02d MS |
42 | uint32_t lm4549_write_samples(lm4549_state *s, uint32_t left, uint32_t right); |
43 | ||
175de524 | 44 | #endif /* HW_LM4549_H */ |