# Copyright (c) 2023 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.
#

if USEMODULE_ESP_LCD

config LCD_WRITE_CLOCK_MHZ
    int "LCD write clock rate in MHz"
    range 1 80
    depends on CPU_FAM_ESP32 || CPU_FAM_ESP32S2 || CPU_FAM_ESP32S3
    default 10 if CPU_FAM_ESP32
    default 40 if CPU_FAM_ESP32S2
    default 20 if CPU_FAM_ESP32S3
    help
        Defines the clock rate that is used for the LCD write signal. It
        depends on used ESP32x SoC variant and used display interface.

config LCD_DATA_BUF_SIZE
    int "LCD data buffer size in byte"
    depends on CPU_FAM_ESP32 || CPU_FAM_ESP32S2 || CPU_FAM_ESP32S3
    default 512
    help
        Defines the size of the buffers used to write data to the LCD
        screen. Since double buffering is used, there are two buffers
        of this size. One buffer is used first by the LCD driver to
        write the data that needs to be transferred to the LCD, and
        one buffer from which the DMA then transfers the data to the
        LCD peripherals. This allows data to be written before the
        DMA transfer is complete. The larger the buffers, the better
        the performance, but the higher the memory requirements.

endif