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https://github.com/RT-Thread/rt-thread.git
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添加 audio设备驱动
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yygg
@@ -1,5 +1,216 @@
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#ifndef AUDIO_H__
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#define AUDIO_H__
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#ifndef __AUDIO_H__
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#define __AUDIO_H__
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//#define AUDIO_DEVICE_USE_PRIVATE_BUFFER
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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_SHUTDOWN _AUDIO_CTL(3)
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#define AUDIO_CTL_START _AUDIO_CTL(4)
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#define AUDIO_CTL_STOP _AUDIO_CTL(5)
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#define AUDIO_CTL_PAUSE _AUDIO_CTL(6)
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#define AUDIO_CTL_RESUME _AUDIO_CTL(7)
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#define AUDIO_CTL_GETBUFFERINFO _AUDIO_CTL(8)
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#define AUDIO_CTL_ALLOCBUFFER _AUDIO_CTL(9)
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#define AUDIO_CTL_FREEBUFFER _AUDIO_CTL(10)
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#define AUDIO_CTL_HWRESET _AUDIO_CTL(11)
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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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#define AUDIO_TYPE_SELECTOR 0x08
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#define AUDIO_TYPE_EFFECT 0x10
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/* Audio Format Types */
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#define AUDIO_FMT_PCM_U8 0x0001
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#define AUDIO_FMT_PCM_S8 0x0002
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#define AUDIO_FMT_PCM_U16_LE 0x0010
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#define AUDIO_FMT_PCM_S16_BE 0x0020
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#define AUDIO_FMT_PCM_S16_LE 0x0040
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#define AUDIO_FMT_PCM_U16_BE 0x0080
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#define AUDIO_FMT_PCM_U24_LE 0x0100
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#define AUDIO_FMT_PCM_S24_BE 0x0200
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#define AUDIO_FMT_PCM_S24_LE 0x0400
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#define AUDIO_FMT_PCM_U24_BE 0x0800
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#define AUDIO_FMT_PCM_U32_LE 0x1000
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#define AUDIO_FMT_PCM_S32_BE 0x2000
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#define AUDIO_FMT_PCM_S32_LE 0x4000
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#define AUDIO_FMT_PCM_U32_BE 0x8000
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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 /* <20><><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5> */
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#define AUDIO_DSP_FMT 2
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#define AUDIO_DSP_CHANNELS 3
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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_EXTEND 0x8000 //extend mixer command
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#define CFG_AUDIO_REPLAY_QUEUE_COUNT 4
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#define CFG_AUDIO_RECORD_PIPE_SIZE (8 * 1024)
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enum
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{
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AUDIO_STREAM_REPLAY = 0,
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AUDIO_STREAM_RECORD,
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AUDIO_STREAM_LAST = AUDIO_STREAM_RECORD,
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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 rt_audio_buf_info
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{
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rt_uint32_t buffer_size; /* Preferred qty of buffers */
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rt_uint32_t buffer_count; /* Preferred size of the buffers */
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};
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struct rt_audio_buf_desc
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{
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rt_uint8_t *data_ptr;
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rt_size_t data_size;
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};
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struct rt_audio_frame
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{
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const void *data_ptr;
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rt_size_t data_size;
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rt_size_t data_ofs;
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};
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struct rt_audio_queue
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{
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rt_uint16_t count;
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rt_uint16_t size;
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rt_uint16_t lwm;
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rt_bool_t waiting_lwm;
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rt_uint16_t get_index;
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rt_uint16_t put_index;
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struct rt_audio_frame *queue;
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rt_list_t suspended_push_list;
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rt_list_t suspended_pop_list;
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};
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struct rt_audio_device;
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struct rt_audio_caps;
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struct rt_audio_configure;
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struct rt_audio_ops
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{
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rt_err_t (*getcaps) (struct rt_audio_device *audio,struct rt_audio_caps *caps);
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rt_err_t (*configure) (struct rt_audio_device *audio,struct rt_audio_caps *caps);
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rt_err_t (*init) (struct rt_audio_device *audio);
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rt_err_t (*shutdown) (struct rt_audio_device *audio);
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rt_err_t (*start) (struct rt_audio_device *audio,int stream);
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rt_err_t (*stop) (struct rt_audio_device *audio,int stream);
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rt_err_t (*suspend) (struct rt_audio_device *audio,int stream);
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rt_err_t (*resume) (struct rt_audio_device *audio,int stream);
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rt_err_t (*control) (struct rt_audio_device *audio, rt_uint8_t cmd, void *arg);
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rt_size_t (*transmit) (struct rt_audio_device *audio, const void *writeBuf,void *readBuf, rt_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 rt_audio_device *audio,struct rt_audio_buf_info *info );
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#ifdef AUDIO_DEVICE_USE_PRIVATE_BUFFER
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rt_err_t (*buffer_alloc) (struct rt_audio_device *audio,rt_uint8_t **data_ptr,rt_size_t *size);
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void (*buffer_free) (struct rt_audio_device *audio,rt_uint8_t *data_ptr);
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#endif
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};
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struct rt_audio_configure
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{
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rt_uint32_t channels;
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rt_uint32_t samplefmt;
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rt_uint32_t samplerate;
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rt_uint32_t samplefmts;
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};
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struct rt_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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rt_uint32_t mask;
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int value;
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struct rt_audio_configure config;
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}udata;
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};
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struct rt_audio_replay
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{
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rt_bool_t activated;
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struct rt_audio_queue queue;
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};
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struct rt_audio_record
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{
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rt_bool_t activated;
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struct rt_pipe_device pipe;
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};
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struct rt_audio_device
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{
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struct rt_device parent;
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struct rt_audio_ops *ops;
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struct rt_audio_replay *replay;
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struct rt_audio_record *record;
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};
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rt_err_t rt_audio_register(struct rt_audio_device *audio, const char *name, rt_uint32_t flag, void *data);
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void rt_audio_tx_complete(struct rt_audio_device *audio,rt_uint8_t *pbuf);
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void rt_audio_rx_done(struct rt_audio_device *audio,rt_uint8_t *pbuf,rt_size_t len);
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rt_uint32_t rt_audio_format_to_bits(rt_uint32_t format);
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/* Device Control Commands */
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#define CODEC_CMD_RESET 0
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@@ -11,4 +222,4 @@
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#define CODEC_VOLUME_MAX (63)
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#endif
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#endif /* __AUDIO_H__ */
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