390 lines
11 KiB
C
390 lines
11 KiB
C
/**
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* @file ili9341.c
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* @brief
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*
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* Copyright (c) 2021 Bouffalolab team
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include "ili9341.h"
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#include "mcu_lcd.h"
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#include "hal_spi.h"
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#include "hal_dma.h"
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#include "hal_gpio.h"
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static struct device *spi0;
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static struct device *dma_ch3;
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const ili9341_init_cmd_t ili9341_init_cmds[] = {
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{ 0x11, "\x00", 0x80 }, /* Exit sleep */
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{ 0xCF, "\x00\xd9\x30", 3 },
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{ 0xED, "\x64\x03\x12\x81", 4 },
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{ 0xE8, "\x85\x01\x78", 3 },
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{ 0xCB, "\x39\x2C\x00\x34\x02", 5 },
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{ 0xF7, "\x20", 1 },
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{ 0xEA, "\x00\x00", 2 },
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{ 0xC0, "\x23", 1 }, /*Power control*/
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{ 0xC1, "\x12", 1 }, /*Power control */
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{ 0xC2, "\x11", 1 },
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{ 0xC5, "\x40\x30", 2 }, /*VCOM control 1*/
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{ 0xC7, "\xa9", 1 }, /*VCOM control 2*/
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{ 0x36, "\x08", 1 }, /*Memory Access Control*/
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{ 0x3A, "\x55", 1 }, /*Pixel Format Set*/
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{ 0xB1, "\x00\x18", 2 }, /* Frame Rate Control */
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{ 0xB6, "\x0a\xa2", 2 }, /* Display Function Control */
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{ 0x0C, "\xd5", 1 }, /* display pixel format,RGB 16bits,MCU 16bits */
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{ 0xF2, "\x00", 1 }, /* 3Gamma Function Disable */
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{ 0xF7, "\x20", 1 },
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{ 0x26, "\x01", 1 }, /* Gamma curve selected */
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{ 0xE0, "\x1F\x1A\x18\x0A\x0F\x06\x45\x87\x32\x0A\x07\x02\x07\x05\x00", 15 }, /* Set Gamma */
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{ 0XE1, "\x00\x25\x27\x05\x10\x09\x3A\x78\x4D\x05\x18\x0D\x38\x3A\x1F", 15 }, /* Set Gamma */
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{ 0xB7, "\x07", 1 },
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{ 0x29, "\x00", 0x80 }, /* Display on */
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};
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/**
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* @brief ili9341_spi_init
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*
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* @return int 0:succes 1:error
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*/
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static int ili9341_spi_init(void)
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{
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gpio_set_mode(ILI9341_CS_PIN, GPIO_OUTPUT_MODE);
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gpio_set_mode(ILI9341_DC_PIN, GPIO_OUTPUT_MODE);
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ILI9341_CS_HIGH;
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ILI9341_DC_HIGH;
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spi0 = device_find("lcd_dev_ifs");
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if (spi0) {
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device_close(spi0);
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} else {
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spi_register(SPI0_INDEX, "lcd_dev_ifs");
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spi0 = device_find("lcd_dev_ifs");
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}
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if (spi0) {
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SPI_DEV(spi0)->mode = SPI_MASTER_MODE;
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SPI_DEV(spi0)->clk = (36 * 1000 * 1000);
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SPI_DEV(spi0)->direction = SPI_MSB_BYTE0_DIRECTION_FIRST;
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SPI_DEV(spi0)->clk_polaraity = SPI_POLARITY_LOW;
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SPI_DEV(spi0)->datasize = SPI_DATASIZE_8BIT;
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SPI_DEV(spi0)->clk_phase = SPI_PHASE_1EDGE;
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SPI_DEV(spi0)->fifo_threshold = 1;
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device_open(spi0, DEVICE_OFLAG_STREAM_TX);
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} else {
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return 1;
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}
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dma_ch3 = device_find("lcd_dev_ifs_dma");
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if (dma_ch3) {
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device_close(dma_ch3);
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} else {
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dma_register(DMA0_CH3_INDEX, "lcd_dev_ifs_dma");
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dma_ch3 = device_find("lcd_dev_ifs_dma");
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}
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if (dma_ch3) {
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DMA_DEV(dma_ch3)->direction = DMA_MEMORY_TO_PERIPH;
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DMA_DEV(dma_ch3)->transfer_mode = DMA_LLI_ONCE_MODE;
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DMA_DEV(dma_ch3)->src_req = DMA_REQUEST_NONE;
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DMA_DEV(dma_ch3)->dst_req = DMA_REQUEST_SPI0_TX;
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DMA_DEV(dma_ch3)->src_width = DMA_TRANSFER_WIDTH_8BIT;
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DMA_DEV(dma_ch3)->dst_width = DMA_TRANSFER_WIDTH_8BIT;
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DMA_DEV(dma_ch3)->src_burst_size = DMA_BURST_1BYTE;
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DMA_DEV(dma_ch3)->dst_burst_size = DMA_BURST_1BYTE;
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device_open(dma_ch3, 0);
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device_set_callback(dma_ch3, NULL);
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device_control(spi0, DEVICE_CTRL_ATTACH_TX_DMA, dma_ch3);
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device_control(dma_ch3, DEVICE_CTRL_SET_INT, NULL);
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} else {
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return 1;
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}
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device_control(spi0, DEVICE_CTRL_TX_DMA_SUSPEND, NULL);
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return 0;
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}
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/**
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* @brief ili9341_write_cmd
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*
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* @param cmd
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* @return int 0:succes 1:error
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*/
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static int ili9341_write_cmd(uint8_t cmd)
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{
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ILI9341_DC_LOW;
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ILI9341_CS_LOW;
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int res = spi_transmit(spi0, &cmd, 1, SPI_TRANSFER_TYPE_8BIT);
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ILI9341_CS_HIGH;
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return res;
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}
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/**
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* @brief ili9341_write_data_1byte
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*
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* @param data
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* @return int 0:succes 1:error
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*/
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static int ili9341_write_data_1byte(uint8_t data)
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{
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ILI9341_DC_HIGH;
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ILI9341_CS_LOW;
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int res = spi_transmit(spi0, &data, 1, SPI_TRANSFER_TYPE_8BIT);
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ILI9341_CS_HIGH;
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return res;
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}
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/**
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* @brief ili9341_write_data_2byte
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*
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* @param data
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* @return int 0:succes 1:error
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*/
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// static int ili9341_write_data_2byte(uint16_t data)
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// {
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// data = ((data >> 8) & 0xFF) | data << 8;
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// ILI9341_DC_HIGH;
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// ILI9341_CS_LOW;
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// int res = spi_transmit(spi0, &data, 1, SPI_TRANSFER_TYPE_16BIT);
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// ILI9341_CS_HIGH;
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// return res;
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// }
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/**
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* @brief ili9341_write_data_4byte
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*
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* @param data
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* @return int 0:succes 1:error
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*/
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static int ili9341_write_data_4byte(uint32_t data)
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{
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data = ((data >> 24) & 0xFF) | ((data >> 8) & 0xFF00) | ((data << 8) & 0xFF0000) | ((data << 24));
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ILI9341_DC_HIGH;
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ILI9341_CS_LOW;
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int res = spi_transmit(spi0, &data, 1, SPI_TRANSFER_TYPE_32BIT);
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ILI9341_CS_HIGH;
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return res;
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}
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/**
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* @brief ili9341_draw_is_busy, After the call ili9341_draw_picture_dma must check this,
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* if ili9341_draw_is_busy() == 1, Don't allow other draw !!
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* can run in the DMA interrupt callback function.
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*
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* @return int 0:draw end; 1:Being draw
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*/
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int ili9341_draw_is_busy(void)
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{
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if (device_control(SPI_DEV(spi0)->tx_dma, DMA_CHANNEL_GET_STATUS, NULL)) {
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return 1;
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} else {
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device_control(spi0, DEVICE_CTRL_TX_DMA_SUSPEND, NULL);
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ILI9341_CS_HIGH;
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return 0;
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}
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}
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/**
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* @brief ili9341_init
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*
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* @return int
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*/
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int ili9341_init()
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{
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int res = ili9341_spi_init();
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if (res) {
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return res;
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}
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for (uint16_t i = 0; i < (sizeof(ili9341_init_cmds) / sizeof(ili9341_init_cmd_t)); i++) {
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/* send register address */
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res |= ili9341_write_cmd(ili9341_init_cmds[i].cmd);
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/* send register data */
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for (uint8_t j = 0; j < (ili9341_init_cmds[i].databytes & 0x7F); j++) {
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res |= ili9341_write_data_1byte(ili9341_init_cmds[i].data[j]);
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}
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if (res) {
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return res;
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}
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/* delay */
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if (ili9341_init_cmds[i].databytes & 0x80) {
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bflb_platform_delay_ms(100);
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}
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}
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ili9341_set_draw_window(0, 0, ILI9341_H, ILI9341_W);
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return res;
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}
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/**
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* @brief
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*
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* @param dir
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* @param mir_flag
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*/
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int ili9341_set_dir(uint8_t dir, uint8_t mir_flag)
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{
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ili9341_write_cmd(0x36);
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switch (dir) {
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case 0:
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if (!mir_flag)
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ili9341_write_data_1byte(0x08);
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else
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ili9341_write_data_1byte(0x48);
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break;
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case 1:
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if (!mir_flag)
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ili9341_write_data_1byte(0xA8);
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else
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ili9341_write_data_1byte(0x28);
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break;
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case 2:
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if (!mir_flag)
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ili9341_write_data_1byte(0xC8);
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else
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ili9341_write_data_1byte(0x88);
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break;
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case 3:
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if (!mir_flag)
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ili9341_write_data_1byte(0x68);
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else
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ili9341_write_data_1byte(0xE8);
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break;
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default:
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return -1;
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break;
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}
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return dir;
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}
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/**
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* @brief ili9341_set_draw_window
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*
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* @param x1
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* @param y1
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* @param x2
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* @param y2
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*/
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void ili9341_set_draw_window(uint32_t x1, uint32_t y1, uint32_t x2, uint32_t y2)
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{
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#if ILI9341_OFFSET_X
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x1 += ILI9341_OFFSET_X;
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x2 += ILI9341_OFFSET_X;
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#endif
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#if ILI9341_OFFSET_Y
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y1 += ILI9341_OFFSET_Y;
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y2 += ILI9341_OFFSET_Y;
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#endif
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ili9341_write_cmd(0x2a);
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ili9341_write_data_4byte(x1 << 16 | (x2 & 0xFFFF));
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ili9341_write_cmd(0x2b);
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ili9341_write_data_4byte(y1 << 16 | (y2 & 0xFFFF));
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ili9341_write_cmd(0x2c);
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}
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/**
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* @brief ili9341_draw_point
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*
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* @param x
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* @param y
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* @param color
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*/
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void ili9341_draw_point(uint16_t x, uint16_t y, uint16_t color)
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{
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if (lcd_auto_swap_flag) {
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color = ((color >> 8) & 0xFF) | color << 8;
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}
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ili9341_set_draw_window(x, y, x, y);
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ILI9341_DC_HIGH;
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ILI9341_CS_LOW;
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spi_transmit(spi0, &color, 1, SPI_TRANSFER_TYPE_16BIT);
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ILI9341_CS_HIGH;
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}
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/**
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* @brief ili9341_draw_area
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*
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* @param x1
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* @param y1
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* @param x2
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* @param y2
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* @param color
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*/
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void ili9341_draw_area(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
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{
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if (lcd_auto_swap_flag) {
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color = ((color >> 8) & 0xFF) | color << 8;
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}
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ili9341_set_draw_window(x1, y1, x2, y2);
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ILI9341_DC_HIGH;
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ILI9341_CS_LOW;
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for (uint16_t i = y1; i <= y2; i++) {
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for (uint16_t j = x1; j <= x2; j++)
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spi_transmit(spi0, &color, 1, SPI_TRANSFER_TYPE_16BIT);
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}
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ILI9341_CS_HIGH;
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}
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/**
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* @brief ili9341_draw_picture_dma, Non-blocking! Using DMA acceleration, Not waiting for the draw end
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* After the call, No other operations are allowed until (ili9341_draw_is_busy()==0)
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*
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* @param x1
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* @param y1
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* @param x2
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* @param y2
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* @param picture
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*/
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void ili9341_draw_picture_nonblocking(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t *picture)
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{
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size_t picture_size = (x2 - x1 + 1) * (y2 - y1 + 1);
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/* 数据高低位切换 */
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if (lcd_auto_swap_flag) {
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lcd_swap_color_data16(picture, picture, picture_size);
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}
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ili9341_set_draw_window(x1, y1, x2, y2);
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ILI9341_DC_HIGH;
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ILI9341_CS_LOW;
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device_control(spi0, DEVICE_CTRL_TX_DMA_RESUME, NULL);
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device_write(spi0, 0, picture, picture_size * 2);
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}
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/**
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* @brief ili9341_draw_picture,Blocking，Using DMA acceleration,Waiting for the draw end
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*
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* @param x1
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* @param y1
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* @param x2
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* @param y2
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* @param picture
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*/
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void ili9341_draw_picture_blocking(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t *picture)
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{
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ili9341_draw_picture_nonblocking(x1, y1, x2, y2, picture);
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while (ili9341_draw_is_busy()) {
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};
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}
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