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https://github.com/espressif/esp-idf.git
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16677b0d3c
peripheral enable/disable usually should be managed by driver itself, so make it as espressif private APIs, not recommended for user to use it in application code. However, if user want to re-write the driver or ports to other platform, this is still possible by including the header in this way: "esp_private/peripheral_ctrl.h"
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
/*
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* SPDX-FileCopyrightText: 2015-2021 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 "hal/clk_gate_ll.h"
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#include "esp_attr.h"
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#include "esp_private/periph_ctrl.h"
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static portMUX_TYPE periph_spinlock = portMUX_INITIALIZER_UNLOCKED;
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static uint8_t ref_counts[PERIPH_MODULE_MAX] = {0};
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void periph_module_enable(periph_module_t periph)
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{
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assert(periph < PERIPH_MODULE_MAX);
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portENTER_CRITICAL_SAFE(&periph_spinlock);
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if (ref_counts[periph] == 0) {
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periph_ll_enable_clk_clear_rst(periph);
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}
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ref_counts[periph]++;
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portEXIT_CRITICAL_SAFE(&periph_spinlock);
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}
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void periph_module_disable(periph_module_t periph)
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{
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assert(periph < PERIPH_MODULE_MAX);
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portENTER_CRITICAL_SAFE(&periph_spinlock);
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ref_counts[periph]--;
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if (ref_counts[periph] == 0) {
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periph_ll_disable_clk_set_rst(periph);
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}
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portEXIT_CRITICAL_SAFE(&periph_spinlock);
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}
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void periph_module_reset(periph_module_t periph)
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{
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assert(periph < PERIPH_MODULE_MAX);
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portENTER_CRITICAL_SAFE(&periph_spinlock);
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periph_ll_reset(periph);
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portEXIT_CRITICAL_SAFE(&periph_spinlock);
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}
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#if CONFIG_ESP32_WIFI_ENABLED
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IRAM_ATTR void wifi_bt_common_module_enable(void)
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{
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portENTER_CRITICAL_SAFE(&periph_spinlock);
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if (ref_counts[PERIPH_WIFI_BT_COMMON_MODULE] == 0) {
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periph_ll_wifi_bt_module_enable_clk_clear_rst();
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}
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ref_counts[PERIPH_WIFI_BT_COMMON_MODULE]++;
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portEXIT_CRITICAL_SAFE(&periph_spinlock);
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}
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IRAM_ATTR void wifi_bt_common_module_disable(void)
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{
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portENTER_CRITICAL_SAFE(&periph_spinlock);
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ref_counts[PERIPH_WIFI_BT_COMMON_MODULE]--;
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if (ref_counts[PERIPH_WIFI_BT_COMMON_MODULE] == 0) {
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periph_ll_wifi_bt_module_disable_clk_set_rst();
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}
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portEXIT_CRITICAL_SAFE(&periph_spinlock);
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}
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void wifi_module_enable(void)
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{
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periph_ll_wifi_module_enable_clk_clear_rst();
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}
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void wifi_module_disable(void)
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{
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periph_ll_wifi_module_disable_clk_set_rst();
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}
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#endif // CONFIG_ESP32_WIFI_ENABLED
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