driver: pack peripherals
This commit is contained in:
laokaiyao
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/*
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* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "driver/dac_types.h"
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#include "esp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if SOC_DAC_SUPPORTED
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/**
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* @brief DAC channel mask
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*
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*/
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typedef enum {
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DAC_CHANNEL_MASK_CH0 = BIT(0), /*!< DAC channel 0 is GPIO25(ESP32) / GPIO17(ESP32S2) */
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DAC_CHANNEL_MASK_CH1 = BIT(1), /*!< DAC channel 1 is GPIO26(ESP32) / GPIO18(ESP32S2) */
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DAC_CHANNEL_MASK_ALL = BIT(0) | BIT(1), /*!< Both DAC channel 0 and channel 1 */
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} dac_channel_mask_t;
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typedef struct dac_continuous_s *dac_continuous_handle_t; /*!< DAC continuous channel handle */
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/**
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* @brief DAC continuous channels' configurations
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*
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*/
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typedef struct {
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dac_channel_mask_t chan_mask; /*!< DAC channels' mask for selecting which channels are used */
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uint32_t desc_num; /*!< The number of DMA descriptor, at least 2 descriptors are required
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* The number of descriptors is directly proportional to the max data buffer size while converting in cyclic output
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* but only need to ensure it is greater than '1' in acyclic output
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* Typically, suggest to set the number bigger than 5, in case the DMA stopped while sending a short buffer
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*/
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size_t buf_size; /*!< The DMA buffer size, should be within 32~4092 bytes. Each DMA buffer will be attached to a DMA descriptor,
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* i.e. the number of DMA buffer will be equal to the DMA descriptor number
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* The DMA buffer size is not allowed to be greater than 4092 bytes
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* The total DMA buffer size equal to `desc_num * buf_size`
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* Typically, suggest to set the size to the multiple of 4
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*/
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uint32_t freq_hz; /*!< The frequency of DAC conversion in continuous mode, unit: Hz
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* The supported range is related to the target and the clock source.
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* For the clock `DAC_DIGI_CLK_SRC_DEFAULT`: the range is 19.6 KHz to several MHz on ESP32
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* and 77 Hz to several MHz on ESP32-S2.
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* For the clock `DAC_DIGI_CLK_SRC_APLL`: the range is 648 Hz to several MHz on ESP32
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* and 6 Hz to several MHz on ESP32-S2.
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* Typically not suggest to set the frequency higher than 2 MHz, otherwise the severe distortion will appear
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*/
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int8_t offset; /*!< The offset of the DAC digital data. Range -128~127 */
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dac_continuous_digi_clk_src_t clk_src; /*!< The clock source of digital controller, which can affect the range of supported frequency
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* Currently `DAC_DIGI_CLK_SRC_DEFAULT` and `DAC_DIGI_CLK_SRC_APLL` are available
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*/
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dac_continuous_channel_mode_t chan_mode; /*!< The channel mode of continuous mode, only take effect when multiple channels enabled, depends converting the buffer alternately or simultaneously */
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} dac_continuous_config_t;
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/**
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* @brief Event structure used in DAC event queue
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*/
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typedef struct {
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void *buf; /*!< The pointer of DMA buffer that just finished sending */
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size_t buf_size; /*!< The writable buffer size of the DMA buffer, equal to 'dac_continuous_config_t::buf_size' */
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size_t write_bytes; /*!< The number of bytes that be written successfully */
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} dac_event_data_t;
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/**
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* @brief DAC event callback
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* @param[in] handle DAC channel handle, created from `dac_continuous_new_channels()`
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* @param[in] event DAC event data
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* @param[in] user_data User registered context, passed from `dac_continuous_register_event_callback()`
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*
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* @return Whether a high priority task has been waken up by this callback function
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*/
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typedef bool (*dac_isr_callback_t)(dac_continuous_handle_t handle, const dac_event_data_t *event, void *user_data);
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/**
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* @brief Group of DAC callbacks
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* @note The callbacks are all running under ISR environment
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* @note When CONFIG_DAC_ISR_IRAM_SAFE is enabled, the callback itself and functions called by it should be placed in IRAM.
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* The variables used in the function should be in the SRAM as well.
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*/
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typedef struct {
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dac_isr_callback_t on_convert_done; /**< Callback of data conversion done event
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* An event data buffer previously loaded to the driver has been output and converted.
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* The event data includes DMA buffer address and size that just finished converting.
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*/
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dac_isr_callback_t on_stop; /**< Callback of finished sending all the data.
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* All loaded event data buffers are converted. Driver is pending for new data buffers to be loaded.
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* The event data will be NULL in this callback.
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*/
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} dac_event_callbacks_t;
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/**
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* @brief Allocate new DAC channels in continuous mode
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* @note The DAC channels can't be registered to continuous mode separately
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*
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* @param[in] cont_cfg Continuous mode configuration
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* @param[out] ret_handle The returned continuous mode handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The DAC channel has been registered already
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* - ESP_ERR_NOT_FOUND Not found the available dma peripheral, might be occupied
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* - ESP_ERR_NO_MEM No memory for the DAC continuous mode resources
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* - ESP_OK Allocate the new DAC continuous mode success
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*/
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esp_err_t dac_continuous_new_channels(const dac_continuous_config_t *cont_cfg, dac_continuous_handle_t *ret_handle);
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/**
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* @brief Delete the DAC continuous handle
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channels have already been deregistered or not disabled
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* - ESP_OK Delete the continuous channels success
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*/
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esp_err_t dac_continuous_del_channels(dac_continuous_handle_t handle);
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/**
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* @brief Enabled the DAC continuous mode
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* @note Must enable the channels before
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channels have been enabled already
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* - ESP_OK Enable the continuous output success
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*/
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esp_err_t dac_continuous_enable(dac_continuous_handle_t handle);
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/**
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* @brief Disable the DAC continuous mode
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channels have been enabled already
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* - ESP_OK Disable the continuous output success
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*/
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esp_err_t dac_continuous_disable(dac_continuous_handle_t handle);
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/**
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* @brief Write DAC data continuously
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* @note The data in buffer will only be converted one time,
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* This function will be blocked until all data loaded or timeout
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* then the DAC output will keep outputting the voltage of the last data in the buffer
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* @note Specially, on ESP32, the data bit width of DAC continuous data is fixed to 16 bits while only the high 8 bits are available,
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* The driver will help to expand the inputted buffer automatically by default,
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* you can also align the data to 16 bits manually by clearing `CONFIG_DAC_DMA_AUTO_16BIT_ALIGN` in menuconfig.
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @param[in] buf The digital data buffer to convert
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* @param[in] buf_size The buffer size of digital data buffer
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* @param[out] bytes_loaded The bytes that has been loaded into DMA buffer, can be NULL if don't need it
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* @param[in] timeout_ms The timeout time in millisecond, set a minus value means will block forever
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The DAC continuous mode has not been enabled yet
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* - ESP_ERR_TIMEOUT Waiting for semaphore or message queue timeout
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* - ESP_OK Success to output the acyclic DAC data
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*/
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esp_err_t dac_continuous_write(dac_continuous_handle_t handle, uint8_t *buf, size_t buf_size, size_t *bytes_loaded, int timeout_ms);
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/**
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* @brief Write DAC continuous data cyclically
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* @note The data in buffer will be converted cyclically using DMA once this function is called,
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* This function will return once the data loaded into DMA buffers.
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* @note The buffer size of cyclically output is limited by the descriptor number and
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* dma buffer size while initializing the continuous mode.
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* Concretely, in order to load all the data into descriptors,
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* the cyclic buffer size is not supposed to be greater than `desc_num * buf_size`
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* @note Specially, on ESP32, the data bit width of DAC continuous data is fixed to 16 bits while only the high 8 bits are available,
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* The driver will help to expand the inputted buffer automatically by default,
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* you can also align the data to 16 bits manually by clearing `CONFIG_DAC_DMA_AUTO_16BIT_ALIGN` in menuconfig.
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @param[in] buf The digital data buffer to convert
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* @param[in] buf_size The buffer size of digital data buffer
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* @param[out] bytes_loaded The bytes that has been loaded into DMA buffer, can be NULL if don't need it
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The DAC continuous mode has not been enabled yet
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* - ESP_OK Success to output the acyclic DAC data
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*/
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esp_err_t dac_continuous_write_cyclically(dac_continuous_handle_t handle, uint8_t *buf, size_t buf_size, size_t *bytes_loaded);
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/**
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* @brief Set event callbacks for DAC continuous mode
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*
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* @note User can deregister a previously registered callback by calling this function and setting the callback member in the `callbacks` structure to NULL.
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* @note When CONFIG_DAC_ISR_IRAM_SAFE is enabled, the callback itself and functions called by it should be placed in IRAM.
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* The variables used in this function, including the `user_data`, should be in the internal RAM as well.
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @param[in] callbacks Group of callback functions, input NULL to clear the former callbacks
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* @param[in] user_data User data, which will be passed to callback functions directly
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* @return
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* - ESP_OK Set event callbacks successfully
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* - ESP_ERR_INVALID_ARG Set event callbacks failed because of invalid argument
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*/
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esp_err_t dac_continuous_register_event_callback(dac_continuous_handle_t handle, const dac_event_callbacks_t *callbacks, void *user_data);
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/**
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* @brief Start the async writing
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* @note When the asynchronous writing start, the DAC will keep outputting '0' until the data are loaded into the DMA buffer.
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* To loaded the data into DMA buffer, 'on_convert_done' callback is required,
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* which can be registered by 'dac_continuous_register_event_callback' before enabling
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @return
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* - ESP_OK Start asynchronous writing successfully
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* - ESP_ERR_INVALID_ARG The handle is NULL
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* - ESP_ERR_INVALID_STATE The channel is not enabled or the 'on_convert_done' callback is not registered
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*/
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esp_err_t dac_continuous_start_async_writing(dac_continuous_handle_t handle);
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/**
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* @brief Stop the sync writing
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @return
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* - ESP_OK Stop asynchronous writing successfully
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* - ESP_ERR_INVALID_ARG The handle is NULL
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* - ESP_ERR_INVALID_STATE Asynchronous writing has not started
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*/
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esp_err_t dac_continuous_stop_async_writing(dac_continuous_handle_t handle);
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/**
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* @brief Write DAC data asynchronously
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* @note This function can be called when the asynchronous writing started, and it can be called in the callback directly
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* but recommend to writing data in a task, referring to :example:`peripherals/dac/dac_continuous/dac_audio`
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*
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* @param[in] handle The DAC continuous channel handle that obtained from 'dac_continuous_new_channels'
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* @param[in] dma_buf The DMA buffer address, it can be acquired from 'dac_event_data_t' in the 'on_convert_done' callback
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* @param[in] dma_buf_len The DMA buffer length, it can be acquired from 'dac_event_data_t' in the 'on_convert_done' callback
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* @param[in] data The data that need to be written
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* @param[in] data_len The data length the need to be written
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* @param[out] bytes_loaded The bytes number that has been loaded/written into the DMA buffer
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* @return
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* - ESP_OK Write the data into DMA buffer successfully
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* - ESP_ERR_INVALID_ARG NULL pointer
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* - ESP_ERR_INVALID_STATE The channels haven't start the asynchronous writing
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* - ESP_ERR_NOT_FOUND The param 'dam_buf' not match any existed DMA buffer
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*/
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esp_err_t dac_continuous_write_asynchronously(dac_continuous_handle_t handle,
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uint8_t *dma_buf,
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size_t dma_buf_len,
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const uint8_t *data,
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size_t data_len,
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size_t *bytes_loaded);
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#endif // SOC_DAC_SUPPORTED
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#ifdef __cplusplus
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}
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#endif
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@@ -0,0 +1,97 @@
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/*
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* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "driver/dac_types.h"
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#include "esp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if SOC_DAC_SUPPORTED
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typedef struct dac_cosine_s *dac_cosine_handle_t; /*!< DAC cosine wave channel handle */
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/**
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* @brief DAC cosine channel configurations
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*
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*/
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typedef struct {
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dac_channel_t chan_id; /*!< The cosine wave channel id */
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uint32_t freq_hz; /*!< The frequency of cosine wave, unit: Hz.
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* The cosine wave generator is driven by RTC_FAST clock which is divide from RC_FAST,
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* With the default RTC clock, the minimum frequency of cosine wave is about 130 Hz,
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* Although it can support up to several MHz frequency theoretically,
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* the waveform will distort at high frequency due to the hardware limitation.
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* Typically not suggest to set the frequency higher than 200 KHz
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*/
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dac_cosine_clk_src_t clk_src; /*!< The clock source of the cosine wave generator, currently only support `DAC_COSINE_CLK_SRC_DEFAULT` */
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dac_cosine_atten_t atten; /*!< The attenuation of cosine wave amplitude */
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dac_cosine_phase_t phase; /*!< The phase of cosine wave, can only support DAC_COSINE_PHASE_0 or DAC_COSINE_PHASE_180, default as 0 while setting an unsupported phase */
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int8_t offset; /*!< The DC offset of cosine wave */
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struct {
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bool force_set_freq: 1; /*!< Force to set the cosine wave frequency */
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} flags; /*!< Flags of cosine mode */
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} dac_cosine_config_t;
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/**
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* @brief Allocate a new DAC cosine wave channel
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* @note Since there is only one cosine wave generator,
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* only the first channel can set the frequency of the cosine wave.
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* Normally, the latter one is not allowed to set a different frequency,
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* but the it can be forced to set by setting the bit `force_set_freq` in the configuration,
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* notice that another channel will be affected as well when the frequency is updated.
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*
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* @param[in] cos_cfg The configuration of cosine wave channel
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* @param[out] ret_handle The returned cosine wave channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The DAC channel has been registered already
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* - ESP_ERR_NO_MEM No memory for the DAC cosine wave channel resources
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* - ESP_OK Allocate the new DAC cosine wave channel success
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*/
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esp_err_t dac_cosine_new_channel(const dac_cosine_config_t *cos_cfg, dac_cosine_handle_t *ret_handle);
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/**
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* @brief Delete the DAC cosine wave channel
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*
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* @param[in] handle The DAC cosine wave channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channel has already been deregistered
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* - ESP_OK Delete the cosine wave channel success
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*/
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esp_err_t dac_cosine_del_channel(dac_cosine_handle_t handle);
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/**
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* @brief Start outputting the cosine wave on the channel
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*
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* @param[in] handle The DAC cosine wave channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channel has been started already
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* - ESP_OK Start the cosine wave success
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*/
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esp_err_t dac_cosine_start(dac_cosine_handle_t handle);
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/**
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* @brief Stop outputting the cosine wave on the channel
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*
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* @param[in] handle The DAC cosine wave channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The channel has been stopped already
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* - ESP_OK Stop the cosine wave success
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*/
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esp_err_t dac_cosine_stop(dac_cosine_handle_t handle);
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#endif // SOC_DAC_SUPPORTED
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#ifdef __cplusplus
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}
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#endif
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@@ -0,0 +1,70 @@
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/*
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* SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include "driver/dac_types.h"
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#include "esp_err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if SOC_DAC_SUPPORTED
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typedef struct dac_oneshot_s *dac_oneshot_handle_t; /*!< DAC oneshot channel handle */
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/**
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* @brief DAC oneshot channel configuration
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*
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*/
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typedef struct {
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dac_channel_t chan_id; /*!< DAC channel id */
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} dac_oneshot_config_t;
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/**
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* @brief Allocate a new DAC oneshot channel
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* @note The channel will be enabled as well when the channel allocated
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*
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* @param[in] oneshot_cfg The configuration for the oneshot channel
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* @param[out] ret_handle The returned oneshot channel handle
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* @return
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* - ESP_ERR_INVALID_ARG The input parameter is invalid
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* - ESP_ERR_INVALID_STATE The DAC channel has been registered already
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* - ESP_ERR_NO_MEM No memory for the DAC oneshot channel resources
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* - ESP_OK Allocate the new DAC oneshot channel success
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*/
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esp_err_t dac_oneshot_new_channel(const dac_oneshot_config_t *oneshot_cfg, dac_oneshot_handle_t *ret_handle);
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/**
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* @brief Delete the DAC oneshot channel
|
||||
* @note The channel will be disabled as well when the channel deleted
|
||||
*
|
||||
* @param[in] handle The DAC oneshot channel handle
|
||||
* @return
|
||||
* - ESP_ERR_INVALID_ARG The input parameter is invalid
|
||||
* - ESP_ERR_INVALID_STATE The channel has already been de-registered
|
||||
* - ESP_OK Delete the oneshot channel success
|
||||
*/
|
||||
esp_err_t dac_oneshot_del_channel(dac_oneshot_handle_t handle);
|
||||
|
||||
/**
|
||||
* @brief Output the voltage
|
||||
* @note Generally it'll take 7~11 us on ESP32 and 10~21 us on ESP32-S2
|
||||
*
|
||||
* @param[in] handle The DAC oneshot channel handle
|
||||
* @param[in] digi_value The digital value that need to be converted
|
||||
* @return
|
||||
* - ESP_ERR_INVALID_ARG The input parameter is invalid
|
||||
* - ESP_OK Convert the digital value success
|
||||
*/
|
||||
esp_err_t dac_oneshot_output_voltage(dac_oneshot_handle_t handle, uint8_t digi_value);
|
||||
|
||||
#endif // SOC_DAC_SUPPORTED
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
@@ -0,0 +1,56 @@
|
||||
/*
|
||||
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
#pragma once
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdbool.h>
|
||||
#include <stddef.h>
|
||||
#include "soc/soc_caps.h"
|
||||
#include "soc/clk_tree_defs.h"
|
||||
#include "hal/adc_types.h"
|
||||
#include "hal/dac_types.h"
|
||||
#include "esp_bit_defs.h"
|
||||
#include "sdkconfig.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#if SOC_DAC_SUPPORTED
|
||||
/**
|
||||
* @brief DAC channel work mode in dma mode
|
||||
* @note Only take effect when multiple channels enabled.
|
||||
* @note Assume the data in buffer is 'A B C D E F'
|
||||
* DAC_CHANNEL_MODE_SIMUL:
|
||||
* - channel 0: A B C D E F
|
||||
* - channel 1: A B C D E F
|
||||
* DAC_CHANNEL_MODE_ALTER:
|
||||
* - channel 0: A C E
|
||||
* - channel 1: B D F
|
||||
*/
|
||||
typedef enum {
|
||||
DAC_CHANNEL_MODE_SIMUL, /*!< The data in the DMA buffer is simultaneously output to the enable channel of the DAC. */
|
||||
DAC_CHANNEL_MODE_ALTER, /*!< The data in the DMA buffer is alternately output to the enable channel of the DAC. */
|
||||
} dac_continuous_channel_mode_t;
|
||||
|
||||
/**
|
||||
* @brief DAC DMA (digitial controller) clock source
|
||||
*
|
||||
*/
|
||||
typedef soc_periph_dac_digi_clk_src_t dac_continuous_digi_clk_src_t;
|
||||
|
||||
/**
|
||||
* @brief DAC cosine wave generator clock source
|
||||
*
|
||||
*/
|
||||
typedef soc_periph_dac_cosine_clk_src_t dac_cosine_clk_src_t;
|
||||
|
||||
#endif // SOC_DAC_SUPPORTED
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
Reference in New Issue
Block a user