mipi-dbi-config.py

#!/usr/bin/env python3

# SPDX-License-Identifier: CC0-1.0

import ctypes


class panel_mipi_dbi_config(ctypes.BigEndianStructure):
    _fields_ = [
        ('magic', ctypes.c_char * 15),
        ('file_format_version', ctypes.c_uint8),

        ('width', ctypes.c_uint16),
        ('height', ctypes.c_uint16),

        ('width_mm', ctypes.c_uint16),
        ('height_mm', ctypes.c_uint16),

        ('x_offset', ctypes.c_uint16),
        ('y_offset', ctypes.c_uint16),

        ('pad', ctypes.c_char * 4),

        #('commands', ctypes.c_uint8 * 0),
    ]


def command(buf, cmd, *parameters):
    buf.append(cmd)
    buf.append(len(parameters))
    for parameter in parameters:
        buf.append(parameter)

def sleep(buf, ms):
    buf.append(0x00)
    buf.append(1)
    buf.append(ms)

def main():
    config = panel_mipi_dbi_config()
    config.magic = b'MIPI DBI'
    config.file_format_version = 1

    config.width = 160
    config.height = 128
    config.width_mm = 35
    config.height_mm = 28

    buf = bytearray()

    command(buf, 0x11)
    sleep(buf, 120)

    command(buf, 0xB1, 0x01, 0x2C, 0x2D)
    command(buf, 0xB4, 0x07)
    command(buf, 0xC0, 0xA2, 0x02, 0x84)
    command(buf, 0xC1, 0xC5)
    command(buf, 0xC2, 0x0A, 0x00)
    command(buf, 0xC5, 0x0E)
    command(buf, 0x60)

    command(buf, 0x3A, 0x05)
    command(buf, 0x36, 0xA0)

    command(buf, 0xE0, 0x0F, 0x1A, 0x0F, 0x18, 0x2F, 0x28, 0x20, 0x22, 0x1F, 0x1B, 0x23, 0x37, 0x00, 0x07, 0x02, 0x10)
    command(buf, 0xE1, 0x0F, 0x1B, 0x0F, 0x17, 0x33, 0x2C, 0x29, 0x2E, 0x30, 0x30, 0x39, 0x3F, 0x00, 0x07, 0x03, 0x10)

    command(buf, 0x29)
    sleep(buf, 100)


    cfg_str = " ".join("{:02x}".format(x) for x in bytearray(config))
    buf_str = " ".join("{:02x}".format(x) for x in buf)
    print('Config:', cfg_str)
    print('Commands:', buf_str)
    print()

    config_bytes = bytearray(config) + buf

    #r = panel_mipi_dbi_config.from_buffer_copy(config_bytes)
    #print(r.magic, r.file_format_version)

    with open('sainsmart18.bin', 'wb') as f:
        f.write(config_bytes)

if __name__ == '__main__':
    main()