pure sdk for main

2025-08-27 09:51:58 +01:00
parent f0d033f1c9
commit 0571416e7c
3283 changed files with 1577720 additions and 1 deletions
@@ -0,0 +1,143 @@
+#include "typesdef.h"
+#include "list.h"
+#include "dev.h"
+#include "devid.h"
+
+#include "hal/pdm.h"
+#include <stdio.h>
+#include "string.h"
+#include "pdm_audio.h"
+
+struct audio_priv
+{
+	struct hgpdm_v0*   pdm_hdl;
+	void *current_node;
+	void *reg_node;
+	//buf暂定open后,就不改变
+	int buf_size;
+	set_buf set_buf;
+	get_buf get_buf;
+
+	//私有结构元素
+	void *priv_el;
+	
+};
+
+static void audio_irq(uint32 irq, uint32 irq_data) 
+{
+    
+  //半中断,切换下一个buf,如果不存在,使用当前的
+  struct audio_priv *priv = (struct audio_priv *)irq_data;
+  void *buf;
+  if(irq == PDM_IRQ_FLAG_DMA_HF)
+  {
+	buf = priv->set_buf(priv->priv_el,&priv->reg_node);
+	//如果reg_node为NULL,则音频录音buf还是原来的buf
+	if(priv->reg_node)
+	{
+		pdm_read((struct pdm_device *)priv->pdm_hdl, buf, priv->buf_size);
+	}
+  }
+  else if(irq == PDM_IRQ_FLAG_DMA_OV)
+  {
+	  //半中断有配置新的buf,则将完成的录音帧通知应用层,如果为NULL,则代表没有配置新的buf,只能使用旧的buf
+	  if(priv->reg_node)
+	  {
+		  priv->get_buf(priv->priv_el,priv->current_node);
+		  priv->current_node = priv->reg_node;
+		  priv->reg_node = NULL;
+	  }
+
+  }
+    
+}
+
+
+void  *pdm_audio_open(enum pdm_sample_freq freq,enum pdm_channel channel)
+{
+	int ret = 0;
+	int res = RET_OK;
+	struct audio_priv *priv = NULL;
+	
+	priv = (struct audio_priv*)malloc(sizeof(struct audio_priv));
+	if(!priv)
+	{
+		ret = -1;
+		goto audio_open_err;
+	}
+	memset(priv,0,sizeof(struct audio_priv));
+	priv->pdm_hdl = (struct hgpdm_v0*)dev_get(HG_PDM0_DEVID);
+	if(!priv->pdm_hdl)
+	{
+		ret = -2;
+		goto audio_open_err;
+	}
+
+	//启动pdm
+    res = pdm_open((struct pdm_device*)priv->pdm_hdl, freq, channel);
+	if(res != RET_OK)
+	{
+	ret = -3;
+	goto audio_open_err;
+
+	}
+    pdm_request_irq((struct pdm_device*)priv->pdm_hdl, PDM_IRQ_FLAG_DMA_OV, (pdm_irq_hdl)audio_irq, (uint32_t)priv);
+	pdm_request_irq((struct pdm_device*)priv->pdm_hdl, PDM_IRQ_FLAG_DMA_HF, (pdm_irq_hdl)audio_irq, (uint32_t)priv);  
+	return priv;
+
+	audio_open_err:
+	if(priv)
+	{
+		free(priv);
+	}
+	return NULL;
+}
+
+void pdm_audio_register(void *audio_hdl,void *priv_el,int play_size,set_buf audio_set_buf,get_buf audio_get_buf)
+{
+	struct audio_priv *priv = (struct audio_priv*)audio_hdl;
+	priv->buf_size = play_size;
+	priv->set_buf = audio_set_buf;
+	priv->get_buf = audio_get_buf;
+	priv->priv_el = priv_el;
+	
+}
+
+int pdm_audio_start(void *audio_hdl)
+{
+	int ret = 0;
+	int res = 0;
+	void *buf;
+	struct audio_priv *priv = (struct audio_priv*)audio_hdl;
+	buf = priv->set_buf(priv->priv_el,&priv->current_node);
+
+	if(!buf)
+	{
+		ret = -1;
+		goto audio_run_err;
+	}
+    res = pdm_read((struct pdm_device *)priv->pdm_hdl, buf, priv->buf_size);
+	//pdm参数输入错误
+	if(res < 0)
+	{
+		ret = -2;
+		goto audio_run_err;
+	}
+
+	audio_run_err:
+	return res;
+
+
+}
+
+void pdm_audio_close(void *audio_hdl)
+{
+	struct audio_priv *priv;
+	if(audio_hdl)
+	{
+		priv = (struct audio_priv*)audio_hdl;
+		pdm_close((struct pdm_device*)priv->pdm_hdl);
+		free(priv);
+	}
+}
+