/* * This file is part of the Micro Python project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2017 Glenn Ruben Bakke * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include #include "py/mphal.h" #include "lcd_ssd1289_driver.h" #include "hal_time.h" #include "framebuffer.h" #if MICROPY_PY_DISPLAY_LCD_SSD1289 static pin_obj_t * mp_cs_pin; static pin_obj_t * mp_rs_pin; static pin_obj_t * mp_wr_pin; static pin_obj_t * mp_reset_pin; static pin_obj_t * mp_d0_pin; static pin_obj_t * mp_d1_pin; static pin_obj_t * mp_d2_pin; static pin_obj_t * mp_d3_pin; static pin_obj_t * mp_d4_pin; static pin_obj_t * mp_d5_pin; static pin_obj_t * mp_d6_pin; static pin_obj_t * mp_d7_pin; static void data_port_write(uint8_t byte) { mp_hal_pin_write(mp_d0_pin, (byte >> 0) & 0x1); mp_hal_pin_write(mp_d1_pin, (byte >> 1) & 0x1); mp_hal_pin_write(mp_d2_pin, (byte >> 2) & 0x1); mp_hal_pin_write(mp_d3_pin, (byte >> 3) & 0x1); mp_hal_pin_write(mp_d4_pin, (byte >> 4) & 0x1); mp_hal_pin_write(mp_d5_pin, (byte >> 5) & 0x1); mp_hal_pin_write(mp_d6_pin, (byte >> 6) & 0x1); mp_hal_pin_write(mp_d7_pin, (byte >> 7) & 0x1); mp_hal_pin_low(mp_wr_pin); mp_hal_delay_us(20); mp_hal_pin_high(mp_wr_pin); } static void cmd_write(uint8_t cmd) { mp_hal_pin_low(mp_rs_pin); mp_hal_delay_us(20); data_port_write(0x00); mp_hal_delay_us(20); data_port_write(cmd); } static void data_write(uint16_t value) { mp_hal_pin_high(mp_rs_pin); uint8_t high_byte = (uint8_t)(value >> 8); uint8_t low_byte = (uint8_t)(value & 0xFF); mp_hal_delay_us(20); data_port_write(high_byte); mp_hal_delay_us(20); data_port_write(low_byte); } #define LCD_WRITE(a, b) { \ cmd_write(a); \ data_write(b); } void driver_ssd1289_init(pin_obj_t * p_cs_pin, pin_obj_t * p_rs_pin, pin_obj_t * p_wr_pin, pin_obj_t * p_reset_pin, pin_obj_t * p_d0_pin, pin_obj_t * p_d1_pin, pin_obj_t * p_d2_pin, pin_obj_t * p_d3_pin, pin_obj_t * p_d4_pin, pin_obj_t * p_d5_pin, pin_obj_t * p_d6_pin, pin_obj_t * p_d7_pin) { mp_cs_pin = p_cs_pin; mp_rs_pin = p_rs_pin; mp_wr_pin = p_wr_pin; mp_reset_pin = p_reset_pin; mp_d0_pin = p_d0_pin; mp_d1_pin = p_d1_pin; mp_d2_pin = p_d2_pin; mp_d3_pin = p_d3_pin; mp_d4_pin = p_d4_pin; mp_d5_pin = p_d5_pin; mp_d6_pin = p_d6_pin; mp_d7_pin = p_d7_pin; mp_hal_pin_low(mp_d0_pin); mp_hal_pin_low(mp_d1_pin); mp_hal_pin_low(mp_d2_pin); mp_hal_pin_low(mp_d3_pin); mp_hal_pin_low(mp_d4_pin); mp_hal_pin_low(mp_d5_pin); mp_hal_pin_low(mp_d6_pin); mp_hal_pin_low(mp_d7_pin); mp_hal_pin_low(mp_rs_pin); mp_hal_pin_low(mp_wr_pin); mp_hal_pin_low(mp_cs_pin); mp_hal_pin_high(mp_reset_pin); mp_hal_delay_ms(20); mp_hal_pin_high(mp_reset_pin); LCD_WRITE(0x00,0x0001); LCD_WRITE(0x03,0xA8A4); LCD_WRITE(0x0C,0x0000); LCD_WRITE(0x0D,0x080C); LCD_WRITE(0x0E,0x2B00); LCD_WRITE(0x1E,0x00B7); LCD_WRITE(0x01,0x2B3F); LCD_WRITE(0x02,0x0600); LCD_WRITE(0x10,0x0000); LCD_WRITE(0x11,0x6070); LCD_WRITE(0x05,0x0000); LCD_WRITE(0x06,0x0000); LCD_WRITE(0x16,0xEF1C); LCD_WRITE(0x17,0x0003); LCD_WRITE(0x07,0x0233); LCD_WRITE(0x0B,0x0000); LCD_WRITE(0x0F,0x0000); LCD_WRITE(0x41,0x0000); LCD_WRITE(0x42,0x0000); LCD_WRITE(0x48,0x0000); LCD_WRITE(0x49,0x013F); LCD_WRITE(0x4A,0x0000); LCD_WRITE(0x4B,0x0000); LCD_WRITE(0x44,0xEF00); LCD_WRITE(0x45,0x0000); LCD_WRITE(0x46,0x013F); LCD_WRITE(0x30,0x0707); LCD_WRITE(0x31,0x0204); LCD_WRITE(0x32,0x0204); LCD_WRITE(0x33,0x0502); LCD_WRITE(0x34,0x0507); LCD_WRITE(0x35,0x0204); LCD_WRITE(0x36,0x0204); LCD_WRITE(0x37,0x0502); LCD_WRITE(0x3A,0x0302); LCD_WRITE(0x3B,0x0302); LCD_WRITE(0x23,0x0000); LCD_WRITE(0x24,0x0000); LCD_WRITE(0x25,0x8000); LCD_WRITE(0x4f,0x0000); LCD_WRITE(0x4e,0x0000); cmd_write(0x22); mp_hal_pin_high(mp_cs_pin); } static void set_xy(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) { LCD_WRITE(0x44, (y1 << 8) + y0); LCD_WRITE(0x45, 319 - x1); LCD_WRITE(0x46, 319 - x0); LCD_WRITE(0x4e, y0); LCD_WRITE(0x4f, 319 - x1); cmd_write(0x22); } void driver_ssd1289_clear(uint16_t color) { uint16_t x; uint16_t y; uint16_t lcd_x_size = 240; uint16_t lcd_y_size = 320; mp_hal_pin_low(mp_cs_pin); set_xy(0, 0, lcd_y_size - 1, lcd_x_size - 1); for (x = 0; x < lcd_x_size; x++) { for (y = 0; y < lcd_y_size; y++) { data_write(color); } } mp_hal_pin_high(mp_cs_pin); } void driver_ssd1289_update_line(uint16_t line, framebuffer_byte_t * p_bytes, uint16_t len) { set_xy(0, line, 319, line); mp_hal_pin_low(mp_cs_pin); for (uint8_t i = 0; i < len; i++) { uint8_t byte = (uint8_t)((uint8_t *)p_bytes)[i]; for (uint8_t pixel_pos = 0; pixel_pos < 8; pixel_pos++) { if (((byte >> pixel_pos) & 0x1) == 0x0) { data_write(0x0000); } else { data_write(0xFFFF); } } } mp_hal_pin_high(mp_cs_pin); } #endif // MICROPY_PY_DISPLAY_LCD_SSD1289