/*
 * SPDX-FileCopyrightText: 2022-2024 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include "esp_private/sleep_clock.h"

bool clock_domain_pd_allowed(void)
{
    const sleep_retention_module_bitmap_t inited_modules = sleep_retention_get_inited_modules();
    const sleep_retention_module_bitmap_t created_modules = sleep_retention_get_created_modules();
    const sleep_retention_module_bitmap_t sys_clk_dep_modules = (sleep_retention_module_bitmap_t){ .bitmap[SLEEP_RETENTION_MODULE_SYS_PERIPH >> 5] = BIT(SLEEP_RETENTION_MODULE_SYS_PERIPH % 32) };

    /* The clock and reset of MODEM (WiFi, BLE and 15.4) modules are managed
     * through MODEM_SYSCON, when one or more MODEMs are initialized, it is
     * necessary to check the state of CLOCK_MODEM to determine MODEM domain on
     * or off. The clock and reset of digital peripherals are managed through
     * PCR, with TOP domain similar to MODEM domain. */
#if SOC_WIFI_SUPPORTED || SOC_BT_SUPPORTED || SOC_IEEE802154_SUPPORTED
    sleep_retention_module_bitmap_t modem_clk_dep_modules = (sleep_retention_module_bitmap_t){ .bitmap = { 0 } };
#endif
#if SOC_WIFI_SUPPORTED
    modem_clk_dep_modules.bitmap[SLEEP_RETENTION_MODULE_WIFI_MAC >> 5] |= BIT(SLEEP_RETENTION_MODULE_WIFI_MAC % 32);
    modem_clk_dep_modules.bitmap[SLEEP_RETENTION_MODULE_WIFI_BB >> 5] |= BIT(SLEEP_RETENTION_MODULE_WIFI_BB % 32);
#endif
#if SOC_BT_SUPPORTED
    modem_clk_dep_modules.bitmap[SLEEP_RETENTION_MODULE_BLE_MAC >> 5] |= BIT(SLEEP_RETENTION_MODULE_BLE_MAC % 32);
    modem_clk_dep_modules.bitmap[SLEEP_RETENTION_MODULE_BT_BB >> 5] |= BIT(SLEEP_RETENTION_MODULE_BT_BB % 32);
#endif
#if SOC_IEEE802154_SUPPORTED
    modem_clk_dep_modules.bitmap[SLEEP_RETENTION_MODULE_802154_MAC >> 5] |= BIT(SLEEP_RETENTION_MODULE_802154_MAC % 32);
    modem_clk_dep_modules.bitmap[SLEEP_RETENTION_MODULE_BT_BB >> 5] |= BIT(SLEEP_RETENTION_MODULE_BT_BB % 32);
#endif

    const sleep_retention_module_bitmap_t null_module = (sleep_retention_module_bitmap_t){ .bitmap = { 0 } };

    sleep_retention_module_bitmap_t mask = (sleep_retention_module_bitmap_t){ .bitmap = { 0 } };
    const sleep_retention_module_bitmap_t system_modules = sleep_retention_module_bitmap_and(inited_modules, sys_clk_dep_modules);
    if (!sleep_retention_module_bitmap_eq(system_modules, null_module)) {
        mask.bitmap[SLEEP_RETENTION_MODULE_CLOCK_SYSTEM >> 5] |= BIT(SLEEP_RETENTION_MODULE_CLOCK_SYSTEM % 32);
    }
#if SOC_WIFI_SUPPORTED || SOC_BT_SUPPORTED || SOC_IEEE802154_SUPPORTED
    const sleep_retention_module_bitmap_t modem_modules = sleep_retention_module_bitmap_and(inited_modules, modem_clk_dep_modules);
    if (!sleep_retention_module_bitmap_eq(modem_modules, null_module)) {
        mask.bitmap[SLEEP_RETENTION_MODULE_CLOCK_MODEM >> 5] |= BIT(SLEEP_RETENTION_MODULE_CLOCK_MODEM % 32);
    }
#endif

    const sleep_retention_module_bitmap_t clock_domain_inited_modules = sleep_retention_module_bitmap_and(inited_modules, mask);
    const sleep_retention_module_bitmap_t clock_domain_created_modules = sleep_retention_module_bitmap_and(created_modules, mask);
    return sleep_retention_module_bitmap_eq(clock_domain_inited_modules, clock_domain_created_modules);
}

ESP_SYSTEM_INIT_FN(sleep_clock_startup_init, SECONDARY, BIT(0), 106)
{
    sleep_retention_module_init_param_t init_param = {
        .cbs       = { .create = { .handle = sleep_clock_system_retention_init, .arg = NULL } },
        .attribute = SLEEP_RETENTION_MODULE_ATTR_PASSIVE
    };
    sleep_retention_module_init(SLEEP_RETENTION_MODULE_CLOCK_SYSTEM, &init_param);

#if CONFIG_MAC_BB_PD || CONFIG_BT_LE_SLEEP_ENABLE || CONFIG_IEEE802154_SLEEP_ENABLE
    init_param = (sleep_retention_module_init_param_t) {
        .cbs       = { .create = { .handle = sleep_clock_modem_retention_init, .arg = NULL } },
        .attribute = SLEEP_RETENTION_MODULE_ATTR_PASSIVE
    };
    sleep_retention_module_init(SLEEP_RETENTION_MODULE_CLOCK_MODEM, &init_param);
#endif
    return ESP_OK;
}