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fix: reduce the consumption of touch sensor during deep sleep

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fuzhibo
2021-02-03 12:29:31 +08:00
parent bda9e1fda7
commit e310fb1393
11 changed files with 181 additions and 31 deletions
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27
components/hal/esp32s3/include/hal/touch_sensor_hal.h
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@@ -608,6 +608,33 @@ void touch_hal_sleep_channel_enable(touch_pad_t pad_num, bool enable);
*/
#define touch_hal_get_wakeup_status(pad_num) touch_ll_get_wakeup_status(pad_num)
/**
* Change the operating frequency of touch pad in deep sleep state. Reducing the operating frequency can effectively reduce power consumption.
* If this function is not called, the working frequency of touch in the deep sleep state is the same as that in the wake-up state.
*
* @param sleep_cycle The touch sensor will sleep after each measurement.
* sleep_cycle decide the interval between each measurement.
* t_sleep = sleep_cycle / (RTC_SLOW_CLK frequency).
* The approximate frequency value of RTC_SLOW_CLK can be obtained using rtc_clk_slow_freq_get_hz function.
* @param meas_times The times of charge and discharge in each measure process of touch channels.
* The timer frequency is 8Mhz. Range: 0 ~ 0xffff.
* Recommended typical value: Modify this value to make the measurement time around 1ms.
*/
void touch_hal_sleep_channel_set_work_time(uint16_t sleep_cycle, uint16_t meas_times);
/**
* Get the operating frequency of touch pad in deep sleep state. Reducing the operating frequency can effectively reduce power consumption.
*
* @param sleep_cycle The touch sensor will sleep after each measurement.
* sleep_cycle decide the interval between each measurement.
* t_sleep = sleep_cycle / (RTC_SLOW_CLK frequency).
* The approximate frequency value of RTC_SLOW_CLK can be obtained using rtc_clk_slow_freq_get_hz function.
* @param meas_times The times of charge and discharge in each measure process of touch channels.
* The timer frequency is 8Mhz. Range: 0 ~ 0xffff.
* Recommended typical value: Modify this value to make the measurement time around 1ms.
*/
void touch_hal_sleep_channel_get_work_time(uint16_t *sleep_cycle, uint16_t *meas_times);
#ifdef __cplusplus
}
#endif

23
components/hal/esp32s3/touch_sensor_hal.c
View File

@@ -18,6 +18,9 @@
#include "hal/touch_sensor_types.h"
#include "soc/soc_caps.h"
static int s_sleep_cycle = -1;
static int s_meas_times = -1;
void touch_hal_init(void)
{
touch_ll_stop_fsm();
@@ -157,3 +160,23 @@ void touch_hal_sleep_channel_get_config(touch_pad_sleep_channel_t *slp_config)
touch_ll_sleep_get_channel_num(&slp_config->touch_num);
slp_config->en_proximity = touch_ll_sleep_get_approach_status();
}
void touch_hal_sleep_channel_set_work_time(uint16_t sleep_cycle, uint16_t meas_times)
{
s_sleep_cycle = (int)sleep_cycle;
s_meas_times = (int)meas_times;
}
void touch_hal_sleep_channel_get_work_time(uint16_t *sleep_cycle, uint16_t *meas_times)
{
if (s_meas_times < 0) {
touch_ll_get_measure_times(meas_times);
} else {
*meas_times = (uint16_t)s_meas_times;
}
if (s_sleep_cycle < 0) {
touch_ll_get_sleep_time(sleep_cycle);
} else {
*sleep_cycle = (uint16_t)s_sleep_cycle;
}
}