# Copyright (c) 2020 HAW Hamburg
#               2022 Gunar Schorcht
#
# This file is subject to the terms and conditions of the GNU Lesser
# General Public License v2.1. See the file LICENSE in the top level
# directory for more details.

config CPU_CORE_XTENSA_LX6
    bool
    select CPU_ARCH_XTENSA

config CPU_CORE
    default "xtensa-lx6" if CPU_CORE_XTENSA_LX6

config CPU_FAM_ESP32
    bool
    select CPU_COMMON_ESP
    select CPU_CORE_XTENSA_LX6
    select HAS_ARCH_ESP32
    select HAS_CPU_ESP32
    select HAS_ESP_HW_COUNTER
    select HAS_ESP_WIFI_ENTERPRISE
    select HAS_PUF_SRAM

    select PACKAGE_ESP32_SDK if TEST_KCONFIG

    select MODULE_MALLOC_THREAD_SAFE if !MODULE_ESP_IDF_HEAP && TEST_KCONFIG
    select MODULE_PERIPH_RTT if HAS_PERIPH_RTT && MODULE_PM_LAYERED
    select MODULE_PS if MODULE_SHELL
    select MODULE_PTHREAD if MODULE_CPP
    select MODULE_RTT_RTC if HAS_PERIPH_RTT && MODULE_PERIPH_RTC
    imply MODULE_NEWLIB_NANO

config CPU_FAM
    default "esp32" if CPU_FAM_ESP32

## CPU Models
config CPU_MODEL_ESP32_WROOM_32
    bool
    select CPU_FAM_ESP32

config CPU_MODEL_ESP32_WROVER
    bool
    select CPU_FAM_ESP32
    select HAS_ESP_SPI_RAM

config CPU_MODEL_ESP32_WROVER_B
    bool
    select CPU_FAM_ESP32
    select HAS_ESP_SPI_RAM

config CPU_MODEL_ESP32_WROVER_E
    bool
    select CPU_FAM_ESP32
    select HAS_ESP_SPI_RAM

config CPU_MODEL_ESP32_D0WD
    bool
    select CPU_FAM_ESP32

config CPU_MODEL
    depends on CPU_FAM_ESP32
    default "esp32-wroom_32" if CPU_MODEL_ESP32_WROOM_32
    default "esp32-wrover" if CPU_MODEL_ESP32_WROVER
    default "esp32-wrover" if CPU_MODEL_ESP32_WROVER_B
    default "esp32-wrover" if CPU_MODEL_ESP32_WROVER_E
    default "esp32-d0wd" if CPU_MODEL_ESP32_D0WD

if CPU_FAM_ESP32

menu "ESP32 specific configurations"
    depends on TEST_KCONFIG
    depends on HAS_ARCH_ESP32

    # define configuration menu entries for ESP32 variant (family)

    choice
        bool "CPU clock frequency"
        default ESP32_DEFAULT_CPU_FREQ_MHZ_80
        help
            CPU clock frequency used (default 80 MHz).
            Please note that peripherals such as I2C or SPI might not work at
            the specified clock frequency if the selected CPU clock frequency
            is too low. These peripherals are clocked by the APB clock, which
            has a clock rate of 80 MHz for CPU clock frequencies greater than
            or equal to 80 MHz, but is equal to the CPU clock frequency for
            CPU clock frequencies less than 80 MHz. Thus, for SPI, the APB
            clock rate must be at least five times the SPI clock rate. For the
            I2C hardware implementation, the APB clock rate must be at least
            40 times the I2C clock rate. For the I2C software implementation,
            the maximum I2C clock rate is 1/200 times the CPU clock rate.

        config ESP32_DEFAULT_CPU_FREQ_MHZ_2
            bool "2 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_5
            bool "5 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_10
            bool "10 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_20
            bool "20 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_40
            bool "40 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_80
            bool "80 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_160
            bool "160 MHz"
        config ESP32_DEFAULT_CPU_FREQ_MHZ_240
            bool "240 MHz"
    endchoice

    # import configuration menu entries that are common for all ESP32x SoCs
    rsource "Kconfig.common"

endmenu

endif # CPU_FAM_ESP32