228 lines
7.3 KiB
C
228 lines
7.3 KiB
C
/*
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****************************************************************
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* AUDIO_ADC_DEMO
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* File : audio_adc_demo.c
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* By :
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* Notes :Audio_ADC使用demo，请不要修改本demo，如有需求，请拷贝副
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* 本，自行修改
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****************************************************************
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*/
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#include "asm/includes.h"
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#include "media/includes.h"
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#include "system/includes.h"
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#include "audio_config.h"
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/*AUDIO_ADC采样参数输出到DAC配置(调试使用)*/
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#define LADC_2_DAC_ENABLE 1
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/*AUDIO_ADC采样参数配置*/
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#define LADC_BUF_NUM 2 /*adc采样buf数*/
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#define LADC_CH_NUM 1 /*adc采样通道数*/
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#define LADC_IRQ_POINTS 256 /*adc采样buf长度，即多少点起一次中断*/
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#define LADC_BUFS_SIZE (LADC_CH_NUM * LADC_BUF_NUM * LADC_IRQ_POINTS)
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struct ladc_demo {
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struct audio_adc_output_hdl adc_output;
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struct adc_mic_ch mic_ch;
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s16 adc_buf[LADC_BUFS_SIZE]; //align 2Bytes
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s16 temp_buf[LADC_IRQ_POINTS * 2];
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};
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static struct ladc_demo *ladc = NULL;
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extern struct audio_adc_hdl adc_hdl;
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/*audio_adc采样数据输出回调*/
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static void audio_adc_demo_output(void *priv, s16 *data, int len)
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{
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struct audio_adc_hdl *hdl = priv;
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putchar('o');
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if (hdl == NULL) {
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printf("audio_adc_hdl err:NULL!!!!");
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return;
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}
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//printf("hdl:%x,data:%x,len:%d,ch:%d\n",hdl,data,len,hdl->channel);
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#if LADC_2_DAC_ENABLE
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#if (TCFG_AUDIO_DAC_CONNECT_MODE == DAC_OUTPUT_LR)//双声道数据结构
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for (int i = 0; i < (len / 2); i++) {
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ladc->temp_buf[i * 2] = data[i];
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ladc->temp_buf[i * 2 + 1] = data[i];
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}
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int wlen = app_audio_output_write(ladc->temp_buf, len * 2);
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if (wlen != (len * 2)) {
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//printf("wlen:%d-%d",wlen,len * 2);
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}
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#else //单声道数据结构
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int wlen = app_audio_output_write(data, len * hdl->channel);
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if (wlen != len) {
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//printf("wlen:%d-%d",wlen,len);
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}
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#endif/*TCFG_AUDIO_DAC_CONNECT_MODE*/
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#endif/*LADC_2_DAC_ENABLE*/
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}
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static u8 mic_demo_idle_query()
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{
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return (ladc ? 0 : 1);
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}
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REGISTER_LP_TARGET(mic_demo_lp_target) = {
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.name = "mic_demo",
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.is_idle = mic_demo_idle_query,
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};
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/*
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*Audio_ADC使用demo以及测试手段
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*通过注册回调函数，可以获取ADC采样数据
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*/
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void audio_adc_open_demo(void)
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{
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u16 sr = 16000;
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u8 gain = 10;
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printf("audio_adc_open:%d\n", sr);
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ladc = zalloc(sizeof(struct ladc_demo));
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if (ladc) {
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audio_adc_mic_open(&ladc->mic_ch, AUDIO_ADC_MIC_CH, &adc_hdl);
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audio_adc_mic_set_sample_rate(&ladc->mic_ch, sr);
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audio_adc_mic_set_gain(&ladc->mic_ch, gain);
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audio_adc_mic_set_buffs(&ladc->mic_ch, ladc->adc_buf, LADC_IRQ_POINTS * 2, LADC_BUF_NUM);
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/*注册ADC采样回调函数*/
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ladc->adc_output.handler = audio_adc_demo_output;
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/*传给回调函数的私有参数*/
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ladc->adc_output.priv = &adc_hdl;
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audio_adc_add_output_handler(&adc_hdl, &ladc->adc_output);
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audio_adc_mic_start(&ladc->mic_ch);
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/*可以通过把ADC采样数据推到DAC进行播放，直观判定数据是否初步正常*/
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#if LADC_2_DAC_ENABLE
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app_audio_output_samplerate_set(sr);
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app_audio_output_start();
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#endif/*LADC_2_DAC_ENABLE*/
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}
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}
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void audio_adc_demo_close(void)
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{
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if (ladc) {
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audio_adc_del_output_handler(&adc_hdl, &ladc->adc_output);
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audio_adc_mic_close(&ladc->mic_ch);
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free(ladc);
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ladc = NULL;
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}
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}
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/********************************************************/
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/* linein demo */
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/********************************************************/
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/*AUDIO_ADC采样参数配置*/
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#define LADC_LINEIN_BUF_NUM 2 /*adc采样buf数*/
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#define LADC_LINEIN_CH_NUM 2 /*adc采样通道数*/
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#define LADC_LINEIN_IRQ_POINTS 256 /*adc采样buf长度，即多少点起一次中断*/
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#define LADC_LINEIN_BUFS_SIZE (LADC_LINEIN_CH_NUM * LADC_LINEIN_BUF_NUM * LADC_LINEIN_IRQ_POINTS)
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struct ladc_linein_demo {
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struct audio_adc_output_hdl adc_output;
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struct audio_adc_ch linein_ch;
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s16 adc_buf[LADC_LINEIN_BUFS_SIZE]; //align 2Bytes
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s16 temp_buf[LADC_LINEIN_IRQ_POINTS * 2];
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};
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static struct ladc_linein_demo *ladc_linein_hdl = NULL;
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/*audio_adc采样数据输出回调*/
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static void audio_linein_output(void *priv, s16 *data, int len)
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{
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struct audio_adc_hdl *hdl = priv;
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putchar('o');
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if (hdl == NULL) {
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printf("audio_adc_hdl err:NULL!!!!");
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return;
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}
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/* printf("hdl:%x,data:%x,len:%d,ch:%d\n",hdl,data,len,hdl->channel); */
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#if LADC_2_DAC_ENABLE
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#if (TCFG_AUDIO_DAC_CONNECT_MODE == DAC_OUTPUT_LR)//双声道数据结构
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if (hdl->channel == 1) {
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for (int i = 0; i < (len / 2); i++) {
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ladc_linein_hdl->temp_buf[i * 2] = data[i];
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ladc_linein_hdl->temp_buf[i * 2 + 1] = data[i];
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}
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int wlen = app_audio_output_write(ladc_linein_hdl->temp_buf, len * 2);
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if (wlen != (len * 2)) {
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//printf("wlen:%d-%d",wlen,len * 2);
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}
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} else {
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int wlen = app_audio_output_write(ladc_linein_hdl->temp_buf, len * 2);
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if (wlen != (len * 2)) {
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//printf("wlen:%d-%d",wlen,len * 2);
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}
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}
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#else //单声道数据结构
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if (hdl->channel == 1) {
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int wlen = app_audio_output_write(data, len * hdl->channel);
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if (wlen != len) {
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//printf("wlen:%d-%d",wlen,len);
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}
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} else {
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for (int i = 0; i < (len / 2); i++) {
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ladc_linein_hdl->temp_buf[i] = data[i * 2] + data[i * 2 + 1];
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}
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int wlen = app_audio_output_write(data, len);
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if (wlen != len) {
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//printf("wlen:%d-%d",wlen,len);
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}
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}
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#endif/*TCFG_AUDIO_DAC_CONNECT_MODE*/
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#endif/*LADC_2_DAC_ENABLE*/
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}
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static u8 linein_demo_idle_query()
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{
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return (ladc_linein_hdl ? 0 : 1);
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}
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REGISTER_LP_TARGET(linein_demo_lp_target) = {
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.name = "linein_demo",
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.is_idle = linein_demo_idle_query,
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};
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void audio_linein_open_demo(void)
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{
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/* u16 sr = 16000; */
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u16 sr = 44100;
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u8 gain = 10;
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printf("audio_adc_linein_open:%d\n", sr);
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ladc_linein_hdl = zalloc(sizeof(struct ladc_linein_demo));
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if (ladc_linein_hdl) {
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audio_adc_linein_open(&ladc_linein_hdl->linein_ch, AUDIO_ADC_LINE0_LR, &adc_hdl);
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audio_adc_linein_set_sample_rate(&ladc_linein_hdl->linein_ch, sr);
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audio_adc_linein_set_gain(&ladc_linein_hdl->linein_ch, gain);
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audio_adc_set_buffs(&ladc_linein_hdl->linein_ch, ladc_linein_hdl->adc_buf, LADC_LINEIN_IRQ_POINTS * 2, LADC_LINEIN_BUF_NUM);
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/*注册ADC采样回调函数*/
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ladc_linein_hdl->adc_output.handler = audio_linein_output;
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/*传给回调函数的私有参数*/
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ladc_linein_hdl->adc_output.priv = &adc_hdl;
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audio_adc_add_output_handler(&adc_hdl, &ladc_linein_hdl->adc_output);
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audio_adc_linein_start(&ladc_linein_hdl->linein_ch);
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/*可以通过把ADC采样数据推到DAC进行播放，直观判定数据是否初步正常*/
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#if LADC_2_DAC_ENABLE
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app_audio_output_samplerate_set(sr);
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app_audio_output_start();
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#endif/*LADC_2_DAC_ENABLE*/
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}
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}
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void audio_linein_demo_close(void)
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{
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if (ladc_linein_hdl) {
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audio_adc_del_output_handler(&adc_hdl, &ladc_linein_hdl->adc_output);
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audio_adc_linein_close(&ladc_linein_hdl->linein_ch);
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free(ladc_linein_hdl);
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ladc_linein_hdl = NULL;
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}
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}
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