196 lines
6.3 KiB
C
196 lines
6.3 KiB
C
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#ifndef __AUDIO_H__
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#define __AUDIO_H__
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/* AUDIO command */
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#define _AUDIO_CTL(a) (0x10 + a)
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#define AUDIO_CTL_GETCAPS _AUDIO_CTL(1)
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#define AUDIO_CTL_CONFIGURE _AUDIO_CTL(2)
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#define AUDIO_CTL_START _AUDIO_CTL(3)
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#define AUDIO_CTL_STOP _AUDIO_CTL(4)
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#define AUDIO_CTL_GETBUFFERINFO _AUDIO_CTL(5)
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/* Audio Device Types */
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#define AUDIO_TYPE_QUERY 0x00
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#define AUDIO_TYPE_INPUT 0x01
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#define AUDIO_TYPE_OUTPUT 0x02
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#define AUDIO_TYPE_MIXER 0x04
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/* Supported Sampling Rates */
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#define AUDIO_SAMP_RATE_8K 0x0001
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#define AUDIO_SAMP_RATE_11K 0x0002
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#define AUDIO_SAMP_RATE_16K 0x0004
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#define AUDIO_SAMP_RATE_22K 0x0008
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#define AUDIO_SAMP_RATE_32K 0x0010
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#define AUDIO_SAMP_RATE_44K 0x0020
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#define AUDIO_SAMP_RATE_48K 0x0040
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#define AUDIO_SAMP_RATE_96K 0x0080
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#define AUDIO_SAMP_RATE_128K 0x0100
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#define AUDIO_SAMP_RATE_160K 0x0200
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#define AUDIO_SAMP_RATE_172K 0x0400
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#define AUDIO_SAMP_RATE_192K 0x0800
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/* Supported Bit Rates */
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#define AUDIO_BIT_RATE_22K 0x01
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#define AUDIO_BIT_RATE_44K 0x02
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#define AUDIO_BIT_RATE_48K 0x04
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#define AUDIO_BIT_RATE_96K 0x08
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#define AUDIO_BIT_RATE_128K 0x10
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#define AUDIO_BIT_RATE_160K 0x20
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#define AUDIO_BIT_RATE_172K 0x40
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#define AUDIO_BIT_RATE_192K 0x80
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/* Support Dsp(input/output) Units controls */
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#define AUDIO_DSP_PARAM 0 /* get/set all params */
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#define AUDIO_DSP_SAMPLERATE 1 /* samplerate */
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#define AUDIO_DSP_CHANNELS 2 /* channels */
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#define AUDIO_DSP_SAMPLEBITS 3 /* sample bits width */
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/* Supported Mixer Units controls */
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#define AUDIO_MIXER_QUERY 0x0000
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#define AUDIO_MIXER_MUTE 0x0001
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#define AUDIO_MIXER_VOLUME 0x0002
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#define AUDIO_MIXER_BASS 0x0004
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#define AUDIO_MIXER_MID 0x0008
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#define AUDIO_MIXER_TREBLE 0x0010
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#define AUDIO_MIXER_EQUALIZER 0x0020
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#define AUDIO_MIXER_LINE 0x0040
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#define AUDIO_MIXER_DIGITAL 0x0080
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#define AUDIO_MIXER_MIC 0x0100
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#define AUDIO_MIXER_VITURAL 0x0200
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#define AUDIO_MIXER_EXTEND 0x8000 /* extend mixer command */
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#define AUDIO_VOLUME_MAX (100)
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#define AUDIO_VOLUME_MIN (0)
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#define CFG_AUDIO_REPLAY_QUEUE_COUNT 8
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/**
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* audio flags defitions
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*/
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//#define AUDIO_FLAG_REPLAY 0
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//#define AUDIO_FLAG_RECORD 1
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#define AUDIO_REPLAY_MP_BLOCK_SIZE 4096
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#define AUDIO_REPLAY_MP_BLOCK_COUNT 4
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#define AUDIO_RECORD_PIPE_SIZE 2048
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//typedef int (*audio_record_callback)(struct audio_device *audio, void *buffer, int size);
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enum
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{
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AUDIO_STREAM_REPLAY = 0,
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AUDIO_STREAM_RECORD = 1,
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};
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/* the preferred number and size of audio pipeline buffer for the audio device */
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struct audio_buf_info
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{
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uint8_t *buffer;
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uint16_t block_size;
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uint16_t block_count;
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uint32_t total_size;
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};
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struct audio_device;
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struct audio_caps;
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struct audio_configure;
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struct audio_ops
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{
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int (*getcaps)(struct audio_device *audio, struct audio_caps *caps);
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int (*configure)(struct audio_device *audio, struct audio_caps *caps);
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int (*init)(struct audio_device *audio);
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int (*start)(struct audio_device *audio, int stream);
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int (*stop)(struct audio_device *audio, int stream);
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size_t (*transmit)(struct audio_device *audio, const void *writeBuf, void *readBuf, size_t size);
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/* get page size of codec or private buffer's info */
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void (*buffer_info)(struct audio_device *audio, struct audio_buf_info *info, int flags);
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};
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struct audio_configure
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{
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uint32_t samplerate;
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uint16_t channels;
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uint16_t samplebits;
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};
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struct audio_caps
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{
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int main_type;
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int sub_type;
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union
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{
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uint32_t mask;
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int value;
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struct audio_configure config;
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} udata;
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};
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struct audio_replay
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{
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QueueHandle_t queue;
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SemaphoreHandle_t lock;
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QueueHandle_t cmp;
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struct audio_buf_info buf_info;
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uint8_t *mempool;
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uint8_t mpstatus[AUDIO_REPLAY_MP_BLOCK_COUNT];
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uint8_t *write_data;
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uint16_t write_index;
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uint16_t read_index;
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uint32_t pos;
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uint8_t event;
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bool activated;
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};
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struct audio_record
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{
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QueueHandle_t cmp;
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struct audio_buf_info buf_info;
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int read_index;
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int remain_size;
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uint8_t event;
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bool activated;
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int (*receive_cb)(struct audio_device *audio);
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};
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struct audio_device
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{
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struct audio_ops *ops;
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struct audio_replay *replay;
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struct audio_record *record;
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/* device call back */
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int (*rx_indicate)(struct audio_device *audio, size_t size);
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int (*tx_complete)(struct audio_device *audio, void *buffer);
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uint32_t flag;
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uint32_t id;
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void *user_data; /**< device private data */
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};
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int audio_register(struct audio_device *audio);
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void audio_tx_complete(struct audio_device *audio);
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int audio_rx_complete(struct audio_device *audio);
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void audio_rx_done(struct audio_device *audio, uint8_t *pbuf, size_t len);
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struct audio_device *audio_dev_open(uint32_t oflag);
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int audio_dev_close(struct audio_device *audio, uint32_t oflag);
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size_t audio_dev_read(struct audio_device *audio, void *buffer, size_t size);
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size_t audio_dev_write(struct audio_device *audio, const void *buffer, size_t size);
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int audio_dev_configure(struct audio_device *audio, struct audio_caps *caps);
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int audio_dev_register_record_callback(struct audio_device *audio, int (*callback)(struct audio_device *audio));
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int audio_dev_record_set_param(struct audio_device *audio, uint8_t *buf, int size);
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int audio_dev_record_start(struct audio_device *audio);
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int audio_dev_record_stop(struct audio_device *audio);
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/* Device Control Commands */
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#define CODEC_CMD_RESET 0
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#define CODEC_CMD_SET_VOLUME 1
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#define CODEC_CMD_GET_VOLUME 2
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#define CODEC_CMD_SAMPLERATE 3
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#define CODEC_CMD_EQ 4
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#define CODEC_CMD_3D 5
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#define CODEC_VOLUME_MAX (63)
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#endif /* __AUDIO_H__ */
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