1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
#ifndef _BFLB_AUDAC_H
#define _BFLB_AUDAC_H
#include "bflb_core.h"
/**
* @defgroup AUDAC_SAMPLING_RATE audac sampling rate
*/
#define AUDAC_SAMPLING_RATE_8K 0
#define AUDAC_SAMPLING_RATE_16K 1
#define AUDAC_SAMPLING_RATE_22P05K 5
#define AUDAC_SAMPLING_RATE_24K 3
#define AUDAC_SAMPLING_RATE_32K 2
#define AUDAC_SAMPLING_RATE_44P1K 6
#define AUDAC_SAMPLING_RATE_48K 4
/**
* @}
*/
/**
* @defgroup AUDAC_OUTPUT_MODE audac output mode
*/
#define AUDAC_OUTPUT_MODE_PWM 0
#define AUDAC_OUTPUT_MODE_GPDAC_CH_A 1
#define AUDAC_OUTPUT_MODE_GPDAC_CH_B 2
#define AUDAC_OUTPUT_MODE_GPDAC_CH_A_B 3
/**
* @}
*/
/**
* @defgroup AUDAC_SOURCE_CHANNEL source channels num
*/
#define AUDAC_SOURCE_CHANNEL_SINGLE 0x01
#define AUDAC_SOURCE_CHANNEL_DUAL 0x03
/**
* @}
*/
/**
* @defgroup AUDAC_MIXER_MODE audac mixer mode, this parameter is valid only in AUDAC_SOURCE_CHANNEL_DUAL mode
*/
#define AUDAC_MIXER_MODE_ONLY_L 0
#define AUDAC_MIXER_MODE_ONLY_R 1
#define AUDAC_MIXER_MODE_SUM 2
#define AUDAC_MIXER_MODE_AVERAGE 3
/**
* @}
*/
/**
* @defgroup AUDAC_DATA_FORMAT audac data format
*/
#define AUDAC_DATA_FORMAT_16BIT 3
#define AUDAC_DATA_FORMAT_20BIT 2
#define AUDAC_DATA_FORMAT_24BIT 1
#define AUDAC_DATA_FORMAT_32BIT 0
/**
* @}
*/
/**
* @defgroup AUDAC_RAMP_RATE audac volume ramp rate
*/
#define AUDAC_RAMP_RATE_FS_2 0
#define AUDAC_RAMP_RATE_FS_4 1
#define AUDAC_RAMP_RATE_FS_8 2
#define AUDAC_RAMP_RATE_FS_16 3
#define AUDAC_RAMP_RATE_FS_32 4
#define AUDAC_RAMP_RATE_FS_64 5
#define AUDAC_RAMP_RATE_FS_128 6
#define AUDAC_RAMP_RATE_FS_256 7
#define AUDAC_RAMP_RATE_FS_512 8
#define AUDAC_RAMP_RATE_FS_1024 9
#define AUDAC_RAMP_RATE_FS_2048 10
/**
* @}
*/
/**
* @defgroup AUDAC_VOLUME_UPDATE_MODE audac volume ramp rate
*/
#define AUDAC_VOLUME_UPDATE_MODE_FORCE 0
#define AUDAC_VOLUME_UPDATE_MODE_RAMP 1
#define AUDAC_VOLUME_UPDATE_MODE_RAMP_ZERO_CROSSING 2
/**
* @}
*/
/** @defgroup AUDAC_INTSTS audac interrupt status definition
* @{
*/
#define AUDAC_INTSTS_VOLUME_RAMP (1 << 0)
#define AUDAC_INTSTS_FIFO_OVER (1 << 1)
#define AUDAC_INTSTS_FIFO_UNDER (1 << 2)
#define AUDAC_INTSTS_FIFO_AVAILABLE (1 << 3)
/** @defgroup AUDAC_CMD audac feature control cmd definition
* @{
*/
#define AUDAC_CMD_PLAY_START (0x01)
#define AUDAC_CMD_PLAY_STOP (0x02)
#define AUDAC_CMD_SET_MUTE (0x03)
#define AUDAC_CMD_SET_VOLUME_VAL (0x04)
#define AUDAC_CMD_CLEAR_TX_FIFO (0x05)
#define AUDAC_CMD_GET_TX_FIFO_CNT (0x06)
/**
* @}
*/
/**
* @brief AUDAC initialization configuration structure
*
* @param sampling_rate AUDAC sampling rate, use @ref AUDAC_SAMPLING_RATE
* @param output_mode AUDAC mode, use @ref AUDAC_OUTPUT_MODE
* @param source_channels_num AUDAC source channels num, use @ref AUDAC_SOURCE_CHANNEL
* @param mixer_mode AUDAC mixer mode, valid only in AUDAC_SOURCE_CHANNEL_DUAL mode, use @ref AUDAC_MIXER_MODE
* @param data_format AUDAC audac data format, use @ref AUDAC_DATA_FORMAT
* @param fifo_threshold AUDAC tx fifo threshold, 0 ~ 7
* @param dma_enable AUDAC dma mode enable, use true or false
*/
struct bflb_audac_init_config_s {
uint8_t sampling_rate;
uint8_t output_mode;
uint8_t source_channels_num;
uint8_t mixer_mode;
uint8_t data_format;
uint8_t fifo_threshold;
};
/**
* @brief AUDAC volume configuration structure
*
* @param mute_ramp_en AUDAC mute mode en, use true or false
* @param mute_up_ramp_rate AUDAC mute up ramp rate, valid when mute_ramp_en is true, use @ref AUDAC_RAMP_RATE
* @param mute_down_ramp_rate AUDAC mute down ramp rate, valid when mute_ramp_en is true, use @ref AUDAC_RAMP_RATE
* @param volume_update_mode AUDAC volume update mode, use @ref AUDAC_VOLUME_UPDATE_MODE
* @param volume_ramp_rate AUDAC volume ramp rate, valid when volume_update_mode is not AUDAC_VOLUME_UPDATE_MODE_FORCE, use @ref AUDAC_RAMP_RATE
* @param volume_zero_cross_timeout AUDAC volume update zero cross timeout period, valid only in AUDAC_VOLUME_UPDATE_MODE_RAMP_ZERO_CROSSING mode
*/
struct bflb_audac_volume_config_s {
bool mute_ramp_en;
uint8_t mute_up_ramp_rate;
uint8_t mute_down_ramp_rate;
uint8_t volume_update_mode;
uint8_t volume_ramp_rate;
uint8_t volume_zero_cross_timeout;
};
int bflb_audac_init(struct bflb_device_s *dev, const struct bflb_audac_init_config_s *config);
int bflb_audac_volume_init(struct bflb_device_s *dev, const struct bflb_audac_volume_config_s *vol_cfg);
int bflb_audac_link_rxdma(struct bflb_device_s *dev, bool enable);
int bflb_audac_int_mask(struct bflb_device_s *dev, uint32_t mask);
int bflb_audac_get_intstatus(struct bflb_device_s *dev);
int bflb_audac_int_clear(struct bflb_device_s *dev, uint32_t int_clear);
int bflb_audac_feature_control(struct bflb_device_s *dev, int cmd, size_t arg);
#endif
|
