mirror of
https://github.com/espressif/esp-idf.git
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83 lines
2.9 KiB
C
83 lines
2.9 KiB
C
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/*
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* SPDX-FileCopyrightText: 2015-2024 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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#include <string.h>
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#include "soc/soc_pins.h"
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#include "hal/touch_sensor_ll.h"
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#include "hal/touch_sensor_hal.h"
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#include "hal/touch_sensor_types.h"
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#include "soc/soc_caps.h"
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typedef struct {
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int deep_slp_chan;
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touch_hal_config_t slp_cfg;
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bool apply_slp_cfg;
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} touch_hal_deep_sleep_obj_t;
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static touch_hal_deep_sleep_obj_t s_touch_slp_obj = {
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.deep_slp_chan = -1,
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.apply_slp_cfg = false,
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};
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void touch_hal_config_controller(const touch_hal_config_t *cfg)
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{
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HAL_ASSERT(cfg);
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touch_ll_set_out_mode(cfg->output_mode);
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touch_ll_set_power_on_wait_cycle(cfg->power_on_wait_ticks);
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touch_ll_set_measure_interval_ticks(cfg->meas_interval_ticks);
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if (cfg->timeout_ticks) {
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touch_ll_timeout_enable(cfg->timeout_ticks);
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} else {
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touch_ll_timeout_disable();
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}
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touch_ll_sample_cfg_set_engaged_num(cfg->sample_cfg_num);
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for (int i = 0; i < cfg->sample_cfg_num; i++) {
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touch_ll_set_clock_div(i, cfg->sample_cfg[i].div_num);
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touch_ll_set_charge_times(i, cfg->sample_cfg[i].charge_times);
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touch_ll_sample_cfg_set_rc_filter(i, cfg->sample_cfg[i].rc_filter_cap, cfg->sample_cfg[i].rc_filter_res);
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touch_ll_sample_cfg_set_driver(i, cfg->sample_cfg[i].low_drv, cfg->sample_cfg[i].high_drv);
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touch_ll_sample_cfg_bypass_shield_output(i, cfg->sample_cfg[i].bypass_shield_output);
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touch_ll_sample_cfg_set_bias_voltage(i, cfg->sample_cfg[i].bias_volt);
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}
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}
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void touch_hal_save_sleep_config(int deep_slp_chan, const touch_hal_config_t *deep_slp_cfg)
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{
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s_touch_slp_obj.deep_slp_chan = deep_slp_chan;
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/* If particular deep sleep configuration is given, save it and apply it before entering the deep sleep */
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if (deep_slp_chan >= 0 && deep_slp_cfg) {
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s_touch_slp_obj.apply_slp_cfg = true;
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memcpy(&s_touch_slp_obj.slp_cfg, deep_slp_cfg, sizeof(touch_hal_config_t));
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} else {
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s_touch_slp_obj.apply_slp_cfg = false;
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}
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}
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//This function will only be called when the chip is going to deep sleep.
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static void s_touch_hal_apply_sleep_config(void)
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{
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/* Apply the particular configuration for deep sleep */
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if (s_touch_slp_obj.apply_slp_cfg) {
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touch_hal_config_controller(&s_touch_slp_obj.slp_cfg);
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}
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/* Whether to enable touch sensor wake-up the chip from deep sleep */
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if (s_touch_slp_obj.deep_slp_chan >= 0) {
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touch_ll_sleep_set_channel_num(s_touch_slp_obj.deep_slp_chan);
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touch_ll_set_channel_mask(BIT(s_touch_slp_obj.deep_slp_chan));
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} else {
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touch_ll_sleep_set_channel_num(TOUCH_LL_NULL_CHANNEL);
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}
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}
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void touch_hal_prepare_deep_sleep(void)
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{
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s_touch_hal_apply_sleep_config();
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// TODO: check if it is necessary to reset the sleep benchmark
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touch_ll_sleep_reset_benchmark();
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touch_ll_intr_clear(TOUCH_LL_INTR_MASK_ALL);
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}
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