kopia lustrzana https://github.com/espressif/esp-idf
50 wiersze
1.4 KiB
C
50 wiersze
1.4 KiB
C
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/*
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* SPDX-FileCopyrightText: 2023 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 "freertos/FreeRTOS.h"
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#include "esp_private/lp_periph_ctrl.h"
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#include "hal/lp_periph_clk_ctrl_ll.h"
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static portMUX_TYPE lp_periph_spinlock = portMUX_INITIALIZER_UNLOCKED;
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static uint8_t ref_counts[LP_PERIPH_MODULE_MAX] = {0};
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void lp_periph_module_enable(lp_periph_module_t lp_periph)
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{
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portENTER_CRITICAL(&lp_periph_spinlock);
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if (ref_counts[lp_periph] == 0) {
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// Enable clock and clear reset
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lp_periph_ll_enable_clk_clear_rst(lp_periph);
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}
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ref_counts[lp_periph]++;
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portEXIT_CRITICAL(&lp_periph_spinlock);
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}
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void lp_periph_module_disable(lp_periph_module_t lp_periph)
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{
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portENTER_CRITICAL(&lp_periph_spinlock);
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ref_counts[lp_periph]--;
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if (ref_counts[lp_periph] == 0) {
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// Disable clock and set reset
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lp_periph_ll_disable_clk_set_rst(lp_periph);
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}
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portEXIT_CRITICAL(&lp_periph_spinlock);
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}
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void lp_periph_module_reset(lp_periph_module_t lp_periph)
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{
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portENTER_CRITICAL(&lp_periph_spinlock);
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lp_periph_ll_reset(lp_periph);
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portEXIT_CRITICAL(&lp_periph_spinlock);
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}
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void lp_periph_set_clk_src(lp_periph_module_t lp_periph, soc_module_clk_t clk_src)
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{
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portENTER_CRITICAL(&lp_periph_spinlock);
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lp_periph_ll_set_clk_src(lp_periph, clk_src);
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portEXIT_CRITICAL(&lp_periph_spinlock);
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}
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