2017-01-05 14:15:23 -05:00
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/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Glenn Ruben Bakke
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2017-01-05 15:57:59 -05:00
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#include "py/mphal.h"
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2017-01-05 14:15:23 -05:00
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#include "lcd_ili9341_driver.h"
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2017-01-05 15:57:59 -05:00
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#include "hal_spi.h"
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#include "hal_time.h"
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2017-01-05 14:15:23 -05:00
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#if MICROPY_PY_DISPLAY_LCD_ILI9341
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2017-01-05 15:57:59 -05:00
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static pin_obj_t * mp_cs_pin;
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static pin_obj_t * mp_dc_pin;
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static NRF_SPI_Type * mp_instance;
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static void raw_write(uint8_t value)
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{
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hal_spi_master_tx_rx(mp_instance, 1, &value, NULL);
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2017-01-05 15:57:59 -05:00
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}
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static void cmd_write(uint8_t value)
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{
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mp_hal_pin_low(mp_dc_pin);
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mp_hal_pin_low(mp_cs_pin);
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hal_spi_master_tx_rx(mp_instance, 1, &value, NULL);
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2017-01-09 11:51:16 -05:00
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mp_hal_pin_high(mp_cs_pin);
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2017-01-05 15:57:59 -05:00
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}
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static void data_write(uint8_t value)
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{
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mp_hal_pin_high(mp_dc_pin);
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mp_hal_pin_low(mp_cs_pin);
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hal_spi_master_tx_rx(mp_instance, 1, &value, NULL);
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2017-01-09 11:51:16 -05:00
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mp_hal_pin_high(mp_cs_pin);
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2017-01-05 15:57:59 -05:00
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}
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void driver_ili9341_init(NRF_SPI_Type * p_instance, pin_obj_t * p_cs_pin, pin_obj_t * p_dc_pin)
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{
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mp_instance = p_instance;
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mp_cs_pin = p_cs_pin;
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mp_dc_pin = p_dc_pin;
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#if 0
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mp_hal_pin_high(enable_pin);
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mp_hal_pin_high(backlight_pin);
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#endif
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mp_hal_pin_high(mp_cs_pin);
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mp_hal_pin_high(mp_dc_pin);
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// Read driver id
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2017-01-09 13:33:01 -05:00
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mp_hal_delay_ms(1000);
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2017-01-06 14:18:00 -05:00
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cmd_write(0x01);
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2017-01-09 13:33:01 -05:00
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mp_hal_delay_ms(500);
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2017-01-06 14:18:00 -05:00
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cmd_write(0xCF);
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data_write(0x00);
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data_write(0x8B);
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data_write(0X30);
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cmd_write(0xED);
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data_write(0x67);
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data_write(0x03);
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data_write(0X12);
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data_write(0X81);
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cmd_write(0xE8);
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data_write(0x85);
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data_write(0x10);
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data_write(0x7A);
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cmd_write(0xCB);
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data_write(0x39);
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data_write(0x2C);
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data_write(0x00);
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data_write(0x34);
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data_write(0x02);
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cmd_write(0xF7);
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data_write(0x20);
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cmd_write(0xEA);
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data_write(0x00);
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data_write(0x00);
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cmd_write(0xC0); /* Power control */
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data_write(0x1B); /* VRH[5:0] */
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cmd_write(0xC1); /* Power control */
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data_write(0x10); /* SAP[2:0];BT[3:0] */
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cmd_write(0xC5); /* VCM control */
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data_write(0x3F);
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data_write(0x3C);
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cmd_write(0xC7); /* VCM control2 */
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data_write(0XB7);
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cmd_write(0x36); /* Memory Access Control */
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data_write(0x08);
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cmd_write(0x3A);
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data_write(0x55);
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cmd_write(0xB1);
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data_write(0x00);
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data_write(0x1B);
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cmd_write(0xB6); /* Display Function Control */
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data_write(0x0A);
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data_write(0xA2);
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cmd_write(0xF2); /* 3Gamma Function Disable */
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data_write(0x00);
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cmd_write(0x26); /* Gamma curve selected */
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data_write(0x01);
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cmd_write(0xE0); /* Set Gamma */
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data_write(0x0F);
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data_write(0x2A);
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data_write(0x28);
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data_write(0x08);
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data_write(0x0E);
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data_write(0x08);
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data_write(0x54);
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data_write(0XA9);
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data_write(0x43);
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data_write(0x0A);
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data_write(0x0F);
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data_write(0x00);
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data_write(0x00);
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data_write(0x00);
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data_write(0x00);
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cmd_write(0XE1); /* Set Gamma */
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data_write(0x00);
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data_write(0x15);
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data_write(0x17);
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data_write(0x07);
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data_write(0x11);
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data_write(0x06);
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data_write(0x2B);
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data_write(0x56);
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data_write(0x3C);
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data_write(0x05);
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data_write(0x10);
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data_write(0x0F);
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data_write(0x3F);
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data_write(0x3F);
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data_write(0x0F);
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cmd_write(0x11); /* Exit Sleep */
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mp_hal_delay_ms(120);
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cmd_write(0x29); /* Display on */
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2017-01-05 15:57:59 -05:00
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}
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static void set_col(uint16_t start_col, uint16_t end_col)
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{
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cmd_write(0x2A); /* Column Command address */
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data_write(start_col >> 8);
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data_write(start_col & 0xFF );
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data_write(end_col >> 8);
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data_write(end_col & 0xFF);
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2017-01-05 15:57:59 -05:00
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}
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static void set_page(uint16_t start_page, uint16_t end_page)
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{
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cmd_write(0x2B); /* Column Command address */
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data_write(start_page >> 8);
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data_write(start_page & 0xFF);
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data_write(end_page >> 8);
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data_write(end_page & 0xFF);
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2017-01-05 15:57:59 -05:00
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}
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void driver_ili9341_clear(uint16_t color)
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{
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set_col(0, 239);
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set_page(0, 319);
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2017-01-06 14:18:00 -05:00
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cmd_write(0x2c); // start writing to the display ram
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2017-01-05 15:57:59 -05:00
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mp_hal_pin_high(mp_dc_pin);
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mp_hal_pin_low(mp_cs_pin);
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2017-01-06 14:18:00 -05:00
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for(uint16_t i = 0; i < 38400; i++)
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{
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raw_write(color >> 8);
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raw_write(color & 0xFF);
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raw_write(color >> 8);
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raw_write(color & 0xFF);
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}
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2017-01-05 15:57:59 -05:00
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2017-01-06 14:18:00 -05:00
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mp_hal_pin_high(mp_cs_pin);
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}
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void driver_ili9341_update_line(uint16_t line, fb_byte_t * p_bytes, uint16_t len, bool compressed) {
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set_col(0, 239);
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set_page(line, line);
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cmd_write(0x2c);
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mp_hal_pin_high(mp_dc_pin);
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mp_hal_pin_low(mp_cs_pin);
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2017-01-05 14:15:23 -05:00
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2017-01-06 14:18:00 -05:00
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if (compressed == true) {
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for (uint16_t i = 0; i < len; i++) {
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for (uint8_t pixel_pos = 0; pixel_pos < 8; pixel_pos++) {
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uint8_t byte = (uint8_t)((uint8_t * )p_bytes)[i];
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if (((byte >> pixel_pos) & 0x1) == 0x0) {
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data_write(0x00);
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data_write(0x00);
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} else {
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data_write(0xFF);
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data_write(0xFF);
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}
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}
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}
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}
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mp_hal_pin_high(mp_cs_pin);
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2017-01-05 15:57:59 -05:00
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}
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2017-01-05 14:15:23 -05:00
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#endif
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