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adc: update the monitor and filter in the HAL on C3

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On C3 ADC has no enable bit for monitor and filter. However we can use context variables to implement one
This commit is contained in:
Michael (XIAO Xufeng)
2021-01-07 23:43:35 +08:00
committed by bot
parent 19fb11549b
commit 90fc3e7030
5 changed files with 85 additions and 46 deletions
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67
components/hal/esp32c3/adc_hal.c
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@@ -14,9 +14,20 @@
// The HAL layer for ADC (ESP32-C3 specific part)
#include <string.h>
#include "soc/soc_caps.h"
#include "hal/adc_hal.h"
#include "hal/adc_types.h"
//Currently we don't have context for the ADC HAL. So HAL variables are temporarily put here. But
//please don't follow this code. Create a context for your own HAL!
static bool s_filter_enabled[SOC_ADC_DIGI_FILTER_NUM] = {};
static adc_digi_filter_t s_filter[SOC_ADC_DIGI_FILTER_NUM] = {};
static bool s_monitor_enabled[SOC_ADC_DIGI_MONITOR_NUM] = {};
static adc_digi_monitor_t s_monitor_config[SOC_ADC_DIGI_MONITOR_NUM] = {};
/*---------------------------------------------------------------
Digital controller setting
---------------------------------------------------------------*/
@@ -94,6 +105,16 @@ void adc_hal_digi_disable(void)
adc_ll_digi_dma_disable();
}
static void filter_update(adc_digi_filter_idx_t idx)
{
//ESP32-C3 has no enable bit, the filter will be enabled when the filter channel is configured
if (s_filter_enabled[idx]) {
adc_ll_digi_filter_set_factor(idx, &s_filter[idx]);
} else {
adc_ll_digi_filter_disable(idx);
}
}
/**
* Set adc digital controller filter factor.
*
@@ -102,11 +123,8 @@ void adc_hal_digi_disable(void)
*/
void adc_hal_digi_filter_set_factor(adc_digi_filter_idx_t idx, adc_digi_filter_t *filter)
{
if (filter->mode == ADC_DIGI_FILTER_DIS) {
adc_ll_digi_filter_disable(idx);
} else {
adc_ll_digi_filter_set_factor(idx, filter);
}
s_filter[idx] = *filter;
filter_update(idx);
}
/**
@@ -117,26 +135,35 @@ void adc_hal_digi_filter_set_factor(adc_digi_filter_idx_t idx, adc_digi_filter_t
*/
void adc_hal_digi_filter_get_factor(adc_digi_filter_idx_t idx, adc_digi_filter_t *filter)
{
adc_ll_digi_filter_get_factor(idx, filter);
if (((filter->adc_unit << 3) | filter->channel) > 9) {
filter->mode = ADC_DIGI_FILTER_DIS;
*filter = s_filter[idx];
}
void adc_hal_digi_filter_enable(adc_digi_filter_idx_t filter_idx, bool enable)
{
s_filter_enabled[filter_idx] = enable;
filter_update(filter_idx);
}
static void update_monitor(adc_digi_monitor_idx_t idx)
{
//ESP32-C3 has no enable bit, the monitor will be enabled when the monitor channel is configured
if (s_monitor_enabled[idx]) {
adc_ll_digi_monitor_set_mode(idx, &s_monitor_config[idx]);
} else {
adc_ll_digi_monitor_disable(idx);
}
}
/**
* Config monitor of adc digital controller.
*
* @note If the channel info is not supported, the monitor function will not be enabled.
* @param idx ADC monitor index.
* @param config Refer to `adc_digi_monitor_t`.
*/
void adc_hal_digi_monitor_config(adc_digi_monitor_idx_t idx, adc_digi_monitor_t *config)
{
if (config->mode == ADC_DIGI_MONITOR_DIS) {
adc_ll_digi_monitor_disable(idx);
} else {
adc_ll_digi_monitor_set_mode(idx, config);
}
s_monitor_config[idx] = *config;
update_monitor(idx);
}
void adc_hal_digi_monitor_enable(adc_digi_monitor_idx_t mon_idx, bool enable)
{
s_monitor_enabled[mon_idx] = enable;
update_monitor(mon_idx);
}
/*---------------------------------------------------------------