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refactor(dac): improve the DAC driver

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This commit is contained in:
Hu Rui
2026-06-26 13:45:38 +08:00
parent e5d57f55b4
commit 3de0e061c1
23 changed files with 927 additions and 488 deletions
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components/esp_hal_ana_conv/include/hal/dac_types.h
+43 -3
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@@ -1,19 +1,57 @@
/*
* SPDX-FileCopyrightText: 2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2025-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include "esp_assert.h"
#include "esp_bit_defs.h"
#include "soc/soc_caps.h"
#ifdef __cplusplus
extern "C" {
#endif
#if SOC_DAC_SUPPORTED
/**
* ESP32:
* - DAC channel 0: GPIO25
* - DAC channel 1: GPIO26
* ESP32S2:
* - DAC channel 0: GPIO17
* - DAC channel 1: GPIO18
*/
typedef enum {
DAC_CHAN_0 = 0, /*!< DAC channel 0 is GPIO25(ESP32) / GPIO17(ESP32S2) */
DAC_CHAN_1 = 1, /*!< DAC channel 1 is GPIO26(ESP32) / GPIO18(ESP32S2) */
DAC_CHAN_0 = 0,
DAC_CHAN_1 = 1,
DAC_CHAN_MAX, /*!< For checking purpose */
} dac_channel_t;
ESP_STATIC_ASSERT(DAC_CHAN_MAX == SOC_DAC_CHAN_NUM, "DAC channel number mismatch");
#define IS_VALID_DAC_CHANNEL(channel) ((uint32_t)(channel) < (uint32_t)DAC_CHAN_MAX)
typedef uint32_t dac_channel_mask_t;
#define DAC_CHANNEL_MASK_CH0 (BIT(0)) /*!< DAC channel 0 mask */
#define DAC_CHANNEL_MASK_CH1 (BIT(1)) /*!< DAC channel 1 mask */
#define DAC_CHANNEL_MASK_ALL ((1ULL << SOC_DAC_CHAN_NUM) - 1) /*!< Bitwise OR of all valid channel masks */
/**
* @note 0 is valid
*/
#define IS_VALID_DAC_CHANNEL_MASK(mask) (((mask) & ~DAC_CHANNEL_MASK_ALL) == 0)
/**
* @brief Use a loop to extract every channel (dac_channel_t) from the mask (dac_channel_mask_t).
*/
#define DAC_CHANNEL_MASK_FOREACH(channel, mask) \
for (uint32_t __dac_mask = (mask), __dac_chan = DAC_CHAN_0; __dac_chan < DAC_CHAN_MAX; __dac_chan++) \
for (dac_channel_t channel = (dac_channel_t)__dac_chan; __dac_mask & BIT(__dac_chan); __dac_mask &= ~BIT(__dac_chan))
/**
* @brief The attenuation of the amplitude of the cosine wave generator. The max amplitude is VDD3P3_RTC.
*/
@@ -35,6 +73,8 @@ typedef enum {
DAC_COSINE_PHASE_180 = 0x03, /*!< Phase shift +180° */
} dac_cosine_phase_t;
#endif // SOC_DAC_SUPPORTED
#ifdef __cplusplus
}
#endif