dac: driver-ng framework

components/driver/deprecated/esp32/dac_legacy.c

@@ -0,0 +1,43 @@
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#include <string.h>
+#include "esp_log.h"
+#include "esp_err.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/semphr.h"
+#include "freertos/timers.h"
+#include "driver/rtc_io.h"
+#include "driver/dac.h"
+#include "soc/dac_periph.h"
+#include "hal/dac_hal.h"
+
+extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate position after the rtc module is finished.
+#define DAC_ENTER_CRITICAL()  portENTER_CRITICAL(&rtc_spinlock)
+#define DAC_EXIT_CRITICAL()  portEXIT_CRITICAL(&rtc_spinlock)
+
+/*---------------------------------------------------------------
+                    Digital controller setting
+---------------------------------------------------------------*/
+
+esp_err_t dac_i2s_enable(void)
+{
+    DAC_ENTER_CRITICAL();
+    dac_hal_digi_enable_dma(true);
+    DAC_EXIT_CRITICAL();
+
+    return ESP_OK;
+}
+
+esp_err_t dac_i2s_disable(void)
+{
+    DAC_ENTER_CRITICAL();
+    dac_hal_digi_enable_dma(false);
+    DAC_EXIT_CRITICAL();
+
+    return ESP_OK;
+}

components/driver/deprecated/esp32/driver/dac.h

@@ -0,0 +1,36 @@
+/*
+ * SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#pragma once
+
+#include "driver/dac_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/*---------------------------------------------------------------
+                    Digital controller setting
+---------------------------------------------------------------*/
+
+/**
+ * @brief Enable DAC output data from I2S
+ *
+ * @return
+ *     - ESP_OK success
+ */
+esp_err_t dac_i2s_enable(void);
+
+/**
+ * @brief Disable DAC output data from I2S
+ *
+ * @return
+ *     - ESP_OK success
+ */
+esp_err_t dac_i2s_disable(void);
+
+#ifdef __cplusplus
+}
+#endif