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Merge branch 'refactor/hal_sigmadelta_driver' into 'master'

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refactor(sigmadelta): add hal sigmadelta driver

See merge request espressif/esp-idf!5599
This commit is contained in:
Wang Jia Lin 2019-11-21 13:35:07 +08:00
commit 8c3cb232f0
11 changed files with 477 additions and 60 deletions
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40
components/driver/include/driver/sigmadelta.h
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@ -1,9 +1,8 @@
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
@ -12,41 +11,18 @@
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __DRIVER_SIGMADELTA_H__
#define __DRIVER_SIGMADELTA_H__
#pragma once
#include <esp_types.h>
#include "soc/sigmadelta_periph.h"
#include "soc/sigmadelta_caps.h"
#include "driver/gpio.h"
#include "hal/sigmadelta_types.h"
#ifdef _cplusplus
extern "C" {
#endif
/**
* @brief Sigma-delta channel list
*/
typedef enum{
SIGMADELTA_CHANNEL_0 = 0, /*!< Sigma-delta channel 0 */
SIGMADELTA_CHANNEL_1 = 1, /*!< Sigma-delta channel 1 */
SIGMADELTA_CHANNEL_2 = 2, /*!< Sigma-delta channel 2 */
SIGMADELTA_CHANNEL_3 = 3, /*!< Sigma-delta channel 3 */
SIGMADELTA_CHANNEL_4 = 4, /*!< Sigma-delta channel 4 */
SIGMADELTA_CHANNEL_5 = 5, /*!< Sigma-delta channel 5 */
SIGMADELTA_CHANNEL_6 = 6, /*!< Sigma-delta channel 6 */
SIGMADELTA_CHANNEL_7 = 7, /*!< Sigma-delta channel 7 */
SIGMADELTA_CHANNEL_MAX,
} sigmadelta_channel_t;
/**
* @brief Sigma-delta configure struct
*/
typedef struct {
sigmadelta_channel_t channel; /*!< Sigma-delta channel number */
int8_t sigmadelta_duty; /*!< Sigma-delta duty, duty ranges from -128 to 127. */
uint8_t sigmadelta_prescale; /*!< Sigma-delta prescale, prescale ranges from 0 to 255. */
uint8_t sigmadelta_gpio; /*!< Sigma-delta output io number, refer to gpio.h for more details. */
} sigmadelta_config_t;
/**
* @brief Configure Sigma-delta channel
*
@ -54,6 +30,7 @@ typedef struct {
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE sigmadelta driver already initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t sigmadelta_config(const sigmadelta_config_t *config);
@ -72,6 +49,7 @@ esp_err_t sigmadelta_config(const sigmadelta_config_t *config);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE sigmadelta driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t sigmadelta_set_duty(sigmadelta_channel_t channel, int8_t duty);
@ -85,6 +63,7 @@ esp_err_t sigmadelta_set_duty(sigmadelta_channel_t channel, int8_t duty);
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE sigmadelta driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t sigmadelta_set_prescale(sigmadelta_channel_t channel, uint8_t prescale);
@ -97,6 +76,7 @@ esp_err_t sigmadelta_set_prescale(sigmadelta_channel_t channel, uint8_t prescale
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_STATE sigmadelta driver has not been initialized
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t sigmadelta_set_pin(sigmadelta_channel_t channel, gpio_num_t gpio_num);
@ -104,5 +84,3 @@ esp_err_t sigmadelta_set_pin(sigmadelta_channel_t channel, gpio_num_t gpio_num);
#ifdef _cplusplus
}
#endif
#endif

127
components/driver/sigmadelta.c
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@ -1,9 +1,9 @@
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
@ -11,49 +11,124 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp_log.h"
#include "driver/sigmadelta.h"
static const char* SIGMADELTA_TAG = "SIGMADELTA";
#define SIGMADELTA_CHANNEL_ERR_STR "SIGMADELTA CHANNEL ERROR"
#define SIGMADELTA_IO_ERR_STR "SIGMADELTA GPIO NUM ERROR"
#include "esp_log.h"
#include "esp_err.h"
#include "driver/sigmadelta.h"
#include "esp_heap_caps.h"
#include "hal/sigmadelta_hal.h"
static const char *TAG = "SIGMADELTA";
#define SIGMADELTA_CHECK(a,str,ret_val) if(!(a)) { \
ESP_LOGE(SIGMADELTA_TAG,"%s:%d (%s):%s", __FILE__, __LINE__, __FUNCTION__, str); \
ESP_LOGE(TAG,"%s:%d (%s):%s", __FILE__, __LINE__, __FUNCTION__, str); \
return (ret_val); \
}
esp_err_t sigmadelta_config(const sigmadelta_config_t *config)
typedef struct {
sigmadelta_hal_context_t hal; /*!< SIGMADELTA hal context*/
} sigmadelta_obj_t;
static sigmadelta_obj_t *p_sigmadelta_obj[SIGMADELTA_PORT_MAX] = {0};
#define SIGMADELTA_OBJ_CHECK(sigmadelta_port) { \
SIGMADELTA_CHECK((sigmadelta_port < SIGMADELTA_PORT_MAX), "sigmadelta port error", ESP_ERR_INVALID_ARG); \
SIGMADELTA_CHECK((p_sigmadelta_obj[sigmadelta_port]), "sigmadelta driver has not been initialized", ESP_ERR_INVALID_STATE); \
}
static inline esp_err_t _sigmadelta_set_duty(sigmadelta_port_t sigmadelta_port, sigmadelta_channel_t channel, int8_t duty)
{
SIGMADELTA_CHECK(config->channel < SIGMADELTA_CHANNEL_MAX, SIGMADELTA_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
SIGMADELTA_CHECK(GPIO_IS_VALID_OUTPUT_GPIO(config->sigmadelta_gpio), SIGMADELTA_IO_ERR_STR, ESP_ERR_INVALID_ARG);
sigmadelta_set_duty(config->channel, config->sigmadelta_duty);
sigmadelta_set_prescale(config->channel, config->sigmadelta_prescale);
sigmadelta_set_pin(config->channel, config->sigmadelta_gpio);
SIGMADELTA_OBJ_CHECK(sigmadelta_port);
sigmadelta_hal_set_duty(&(p_sigmadelta_obj[sigmadelta_port]->hal), channel, duty);
return ESP_OK;
}
esp_err_t sigmadelta_set_duty(sigmadelta_channel_t channel, int8_t duty)
static inline esp_err_t _sigmadelta_set_prescale(sigmadelta_port_t sigmadelta_port, sigmadelta_channel_t channel, uint8_t prescale)
{
SIGMADELTA_CHECK(channel < SIGMADELTA_CHANNEL_MAX, SIGMADELTA_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
SIGMADELTA.channel[channel].duty = duty;
SIGMADELTA_OBJ_CHECK(sigmadelta_port);
sigmadelta_hal_set_prescale(&(p_sigmadelta_obj[sigmadelta_port]->hal), channel, prescale);
return ESP_OK;
}
esp_err_t sigmadelta_set_prescale(sigmadelta_channel_t channel, uint8_t prescale)
static inline esp_err_t _sigmadelta_set_pin(sigmadelta_port_t sigmadelta_port, sigmadelta_channel_t channel, gpio_num_t gpio_num)
{
SIGMADELTA_CHECK(channel < SIGMADELTA_CHANNEL_MAX, SIGMADELTA_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
SIGMADELTA.channel[channel].prescale = prescale;
return ESP_OK;
}
SIGMADELTA_OBJ_CHECK(sigmadelta_port);
esp_err_t sigmadelta_set_pin(sigmadelta_channel_t channel, gpio_num_t gpio_num)
{
SIGMADELTA_CHECK(channel < SIGMADELTA_CHANNEL_MAX, SIGMADELTA_CHANNEL_ERR_STR, ESP_ERR_INVALID_ARG);
SIGMADELTA_CHECK(GPIO_IS_VALID_OUTPUT_GPIO(gpio_num), SIGMADELTA_IO_ERR_STR, ESP_ERR_INVALID_ARG);
PIN_FUNC_SELECT(GPIO_PIN_MUX_REG[gpio_num], PIN_FUNC_GPIO);
gpio_set_direction(gpio_num, GPIO_MODE_OUTPUT);
gpio_matrix_out(gpio_num, GPIO_SD0_OUT_IDX + channel, 0, 0);
return ESP_OK;
}
static inline esp_err_t _sigmadelta_config(sigmadelta_port_t sigmadelta_port, const sigmadelta_config_t *config)
{
SIGMADELTA_OBJ_CHECK(sigmadelta_port);
_sigmadelta_set_duty(sigmadelta_port, config->channel, config->sigmadelta_duty);
_sigmadelta_set_prescale(sigmadelta_port, config->channel, config->sigmadelta_prescale);
_sigmadelta_set_pin(sigmadelta_port, config->channel, config->sigmadelta_gpio);
return ESP_OK;
}
esp_err_t sigmadelta_deinit(sigmadelta_port_t sigmadelta_port)
{
SIGMADELTA_OBJ_CHECK(sigmadelta_port);
heap_caps_free(p_sigmadelta_obj[sigmadelta_port]);
p_sigmadelta_obj[sigmadelta_port] = NULL;
return ESP_OK;
}
esp_err_t sigmadelta_init(sigmadelta_port_t sigmadelta_port)
{
SIGMADELTA_CHECK((sigmadelta_port < SIGMADELTA_PORT_MAX), "sigmadelta_port error", ESP_ERR_INVALID_ARG);
SIGMADELTA_CHECK((p_sigmadelta_obj[sigmadelta_port]) == NULL, "sigmadelta driver already initialized", ESP_ERR_INVALID_STATE);
p_sigmadelta_obj[sigmadelta_port] = (sigmadelta_obj_t *) heap_caps_calloc(1, sizeof(sigmadelta_obj_t), MALLOC_CAP_DEFAULT);
if (p_sigmadelta_obj[sigmadelta_port] == NULL) {
ESP_LOGE(TAG, "TAG driver malloc error");
return ESP_FAIL;
}
sigmadelta_hal_init(&(p_sigmadelta_obj[sigmadelta_port]->hal), sigmadelta_port);
return ESP_OK;
}
// TODO: The following functions are wrappers, for compatibility with current API.
esp_err_t sigmadelta_set_duty(sigmadelta_channel_t channel, int8_t duty)
{
SIGMADELTA_CHECK(channel < SIGMADELTA_CHANNEL_MAX, "sigmadelta channel error", ESP_ERR_INVALID_ARG);
return _sigmadelta_set_duty(SIGMADELTA_PORT_0, channel, duty);
}
esp_err_t sigmadelta_set_prescale(sigmadelta_channel_t channel, uint8_t prescale)
{
SIGMADELTA_CHECK(channel < SIGMADELTA_CHANNEL_MAX, "sigmadelta channel error", ESP_ERR_INVALID_ARG);
return _sigmadelta_set_prescale(SIGMADELTA_PORT_0, channel, prescale);
}
esp_err_t sigmadelta_set_pin(sigmadelta_channel_t channel, gpio_num_t gpio_num)
{
SIGMADELTA_CHECK(channel < SIGMADELTA_CHANNEL_MAX, "sigmadelta channel error", ESP_ERR_INVALID_ARG);
SIGMADELTA_CHECK(GPIO_IS_VALID_OUTPUT_GPIO(gpio_num), "sigmadelta gpio num error", ESP_ERR_INVALID_ARG);
return _sigmadelta_set_pin(SIGMADELTA_PORT_0, channel, gpio_num);
}
esp_err_t sigmadelta_config(const sigmadelta_config_t *config)
{
SIGMADELTA_CHECK(config->channel < SIGMADELTA_CHANNEL_MAX, "sigmadelta channel error", ESP_ERR_INVALID_ARG);
SIGMADELTA_CHECK(GPIO_IS_VALID_OUTPUT_GPIO(config->sigmadelta_gpio), "sigmadelta gpio num error", ESP_ERR_INVALID_ARG);
esp_err_t ret;
if ((p_sigmadelta_obj[SIGMADELTA_PORT_0]) == NULL) {
ret = sigmadelta_init(SIGMADELTA_PORT_0);
if (ret != ESP_OK) {
return ret;
}
}
return _sigmadelta_config(SIGMADELTA_PORT_0, config);
}

1
components/soc/CMakeLists.txt
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@ -21,6 +21,7 @@ list(APPEND srcs
"src/soc_include_legacy_warn.c"
"src/hal/pcnt_hal.c"
"src/hal/i2s_hal.c"
"src/hal/sigmadelta_hal.c"
)
# TODO: SPI Flash HAL for ESP32S2Beta also

73
components/soc/esp32/include/hal/sigmadelta_ll.h Normal file
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@ -0,0 +1,73 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*******************************************************************************
* NOTICE
* The hal is not public api, don't use in application code.
* See readme.md in soc/include/hal/readme.md
******************************************************************************/
// The LL layer for ESP32 SIGMADELTA register operations
#pragma once
#include <stdbool.h>
#include "soc/sigmadelta_periph.h"
#include "hal/sigmadelta_types.h"
#ifdef __cplusplus
extern "C" {
#endif
// Get SIGMADELTA hardware instance with giving sigmadelta num
#define SIGMADELTA_LL_GET_HW(num) (((num) == 0) ? (&SIGMADELTA) : NULL)
/**
* @brief Set Sigma-delta enable
*
* @param hw Peripheral SIGMADELTA hardware instance address.
* @param en Sigma-delta enable value
*/
static inline void sigmadelta_ll_set_en(gpio_sd_dev_t *hw, bool en)
{
// The clk enable register does not exist on ESP32.
}
/**
* @brief Set Sigma-delta channel duty.
*
* @param hw Peripheral SIGMADELTA hardware instance address.
* @param channel Sigma-delta channel number
* @param duty Sigma-delta duty of one channel, the value ranges from -128 to 127, recommended range is -90 ~ 90.
* The waveform is more like a random one in this range.
*/
static inline void sigmadelta_ll_set_duty(gpio_sd_dev_t *hw, sigmadelta_channel_t channel, int8_t duty)
{
hw->channel[channel].duty = duty;
}
/**
* @brief Set Sigma-delta channel's clock pre-scale value.
*
* @param hw Peripheral SIGMADELTA hardware instance address.
* @param channel Sigma-delta channel number
* @param val The divider of source clock, ranges from 0 to 255
*/
static inline void sigmadelta_ll_set_prescale(gpio_sd_dev_t *hw, sigmadelta_channel_t channel, uint8_t prescale)
{
hw->channel[channel].prescale = prescale;
}
#ifdef __cplusplus
}
#endif

37
components/soc/esp32/include/soc/sigmadelta_caps.h Normal file
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@ -0,0 +1,37 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
// ESP32 have 1 SIGMADELTA peripheral.
#define SIGMADELTA_PORT_0 (0) /*!< SIGMADELTA port 0 */
#define SIGMADELTA_PORT_MAX (1) /*!< SIGMADELTA port max */
#define SOC_SIGMADELTA_NUM (SIGMADELTA_PORT_MAX)
#define SIGMADELTA_CHANNEL_0 (0) /*!< Sigma-delta channel 0 */
#define SIGMADELTA_CHANNEL_1 (1) /*!< Sigma-delta channel 1 */
#define SIGMADELTA_CHANNEL_2 (2) /*!< Sigma-delta channel 2 */
#define SIGMADELTA_CHANNEL_3 (3) /*!< Sigma-delta channel 3 */
#define SIGMADELTA_CHANNEL_4 (4) /*!< Sigma-delta channel 4 */
#define SIGMADELTA_CHANNEL_5 (5) /*!< Sigma-delta channel 5 */
#define SIGMADELTA_CHANNEL_6 (6) /*!< Sigma-delta channel 6 */
#define SIGMADELTA_CHANNEL_7 (7) /*!< Sigma-delta channel 7 */
#define SIGMADELTA_CHANNEL_MAX (8)
#ifdef __cplusplus
}
#endif

73
components/soc/esp32s2beta/include/hal/sigmadelta_ll.h Normal file
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@ -0,0 +1,73 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*******************************************************************************
* NOTICE
* The hal is not public api, don't use in application code.
* See readme.md in soc/include/hal/readme.md
******************************************************************************/
// The LL layer for ESP32-S2 SIGMADELTA register operations
#pragma once
#include <stdbool.h>
#include "soc/sigmadelta_periph.h"
#include "hal/sigmadelta_types.h"
#ifdef __cplusplus
extern "C" {
#endif
// Get SIGMADELTA hardware instance with giving sigmadelta num
#define SIGMADELTA_LL_GET_HW(num) (((num) == 0) ? (&SIGMADELTA) : NULL)
/**
* @brief Set Sigma-delta enable
*
* @param hw Peripheral SIGMADELTA hardware instance address.
* @param en Sigma-delta enable value
*/
static inline void sigmadelta_ll_set_en(gpio_sd_dev_t *hw, bool en)
{
hw->misc.function_clk_en = en;
}
/**
* @brief Set Sigma-delta channel duty.
*
* @param hw Peripheral SIGMADELTA hardware instance address.
* @param channel Sigma-delta channel number
* @param duty Sigma-delta duty of one channel, the value ranges from -128 to 127, recommended range is -90 ~ 90.
* The waveform is more like a random one in this range.
*/
static inline void sigmadelta_ll_set_duty(gpio_sd_dev_t *hw, sigmadelta_channel_t channel, int8_t duty)
{
hw->channel[channel].duty = duty;
}
/**
* @brief Set Sigma-delta channel's clock pre-scale value.
*
* @param hw Peripheral SIGMADELTA hardware instance address.
* @param channel Sigma-delta channel number
* @param prescale The divider of source clock, ranges from 0 to 255
*/
static inline void sigmadelta_ll_set_prescale(gpio_sd_dev_t *hw, sigmadelta_channel_t channel, uint8_t prescale)
{
hw->channel[channel].prescale = prescale;
}
#ifdef __cplusplus
}
#endif

37
components/soc/esp32s2beta/include/soc/sigmadelta_caps.h Normal file
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@ -0,0 +1,37 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
// ESP32-S2 have 1 SIGMADELTA peripheral.
#define SIGMADELTA_PORT_0 (0) /*!< SIGMADELTA port 0 */
#define SIGMADELTA_PORT_MAX (1) /*!< SIGMADELTA port max */
#define SOC_SIGMADELTA_NUM (SIGMADELTA_PORT_MAX)
#define SIGMADELTA_CHANNEL_0 (0) /*!< Sigma-delta channel 0 */
#define SIGMADELTA_CHANNEL_1 (1) /*!< Sigma-delta channel 1 */
#define SIGMADELTA_CHANNEL_2 (2) /*!< Sigma-delta channel 2 */
#define SIGMADELTA_CHANNEL_3 (3) /*!< Sigma-delta channel 3 */
#define SIGMADELTA_CHANNEL_4 (4) /*!< Sigma-delta channel 4 */
#define SIGMADELTA_CHANNEL_5 (5) /*!< Sigma-delta channel 5 */
#define SIGMADELTA_CHANNEL_6 (6) /*!< Sigma-delta channel 6 */
#define SIGMADELTA_CHANNEL_7 (7) /*!< Sigma-delta channel 7 */
#define SIGMADELTA_CHANNEL_MAX (8)
#ifdef __cplusplus
}
#endif

71
components/soc/include/hal/sigmadelta_hal.h Normal file
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@ -0,0 +1,71 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*******************************************************************************
* NOTICE
* The hal is not public api, don't use in application code.
* See readme.md in soc/include/hal/readme.md
******************************************************************************/
// The HAL layer for SIGMADELTA.
// There is no parameter check in the hal layer, so the caller must ensure the correctness of the parameters.
#pragma once
#include "soc/sigmadelta_periph.h"
#include "hal/sigmadelta_types.h"
#include "hal/sigmadelta_ll.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Context that should be maintained by both the driver and the HAL
*/
typedef struct {
gpio_sd_dev_t *dev;
} sigmadelta_hal_context_t;
/**
* @brief Set Sigma-delta channel duty.
*
* @param hal Context of the HAL layer
* @param channel Sigma-delta channel number
* @param duty Sigma-delta duty of one channel, the value ranges from -128 to 127, recommended range is -90 ~ 90.
* The waveform is more like a random one in this range.
*/
#define sigmadelta_hal_set_duty(hal, channel, duty) sigmadelta_ll_set_duty((hal)->dev, channel, duty)
/**
* @brief Set Sigma-delta channel's clock pre-scale value.
*
* @param hal Context of the HAL layer
* @param channel Sigma-delta channel number
* @param prescale The divider of source clock, ranges from 0 to 255
*/
#define sigmadelta_hal_set_prescale(hal, channel, prescale) sigmadelta_ll_set_prescale((hal)->dev, channel, prescale)
/**
* @brief Init the SIGMADELTA hal and set the SIGMADELTA to the default configuration. This function should be called first before other hal layer function is called
*
* @param hal Context of the HAL layer
* @param sigmadelta_num The uart port number, the max port number is (SIGMADELTA_NUM_MAX -1)
*/
void sigmadelta_hal_init(sigmadelta_hal_context_t *hal, int sigmadelta_num);
#ifdef __cplusplus
}
#endif

45
components/soc/include/hal/sigmadelta_types.h Normal file
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@ -0,0 +1,45 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "soc/sigmadelta_caps.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief SIGMADELTA port number, the max port number is (SIGMADELTA_NUM_MAX -1).
*/
typedef int sigmadelta_port_t;
/**
* @brief Sigma-delta channel list
*/
typedef int sigmadelta_channel_t;
/**
* @brief Sigma-delta configure struct
*/
typedef struct {
sigmadelta_channel_t channel; /*!< Sigma-delta channel number */
int8_t sigmadelta_duty; /*!< Sigma-delta duty, duty ranges from -128 to 127. */
uint8_t sigmadelta_prescale; /*!< Sigma-delta prescale, prescale ranges from 0 to 255. */
uint8_t sigmadelta_gpio; /*!< Sigma-delta output io number, refer to gpio.h for more details. */
} sigmadelta_config_t;
#ifdef __cplusplus
}
#endif

26
components/soc/src/hal/sigmadelta_hal.c Normal file
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@ -0,0 +1,26 @@
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// The HAL layer for SIGMADELTA (common part)
#include <stdio.h>
#include "soc/soc.h"
#include "hal/sigmadelta_hal.h"
void sigmadelta_hal_init(sigmadelta_hal_context_t *hal, int sigmadelta_num)
{
//Get hardware instance.
hal->dev = SIGMADELTA_LL_GET_HW(sigmadelta_num);
sigmadelta_ll_set_en(hal->dev, 1);
}

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@ -108,6 +108,7 @@ INPUT = \
../../components/soc/include/hal/pcnt_types.h \
../../components/soc/include/hal/i2s_types.h \
../../components/soc/include/hal/rtc_io_types.h \
../../components/soc/include/hal/sigmadelta_types.h \
../../components/soc/esp32/include/soc/adc_channel.h \
../../components/soc/esp32/include/soc/dac_channel.h \
../../components/soc/esp32/include/soc/touch_channel.h \