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283 lines
9.2 KiB
283 lines
9.2 KiB
/*
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MIT License
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Copyright (c) 2018-2019, Alexey Dynda
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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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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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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 THE
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SOFTWARE.
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*/
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#include "lcd_ili9341.h"
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#include "lcd_common.h"
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#include "intf/ssd1306_interface.h"
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#include "intf/spi/ssd1306_spi.h"
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#include "ssd1306_hal/io.h"
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#include "nano_gfx_types.h"
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#ifdef SDL_EMULATION
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#include "sdl_core.h"
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#endif
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#define CMD_ARG 0xFF
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extern uint16_t ssd1306_color;
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extern uint32_t s_ssd1306_spi_clock;
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static uint8_t s_rotation = 0x00;
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static uint8_t s_rgb_bit = 0b00001000;
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static uint8_t s_rotate_output = 0;
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static const PROGMEM uint8_t s_oled240x320_initData[] =
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{
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#ifdef SDL_EMULATION
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SDL_LCD_ILI9341,
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0x00,
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#endif
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0x01, // sw reset. not needed, we do hardware reset
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0x11, // exit sleep mode
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0x3A, CMD_ARG, 0x05, // set 16-bit pixel format
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0x26, CMD_ARG, 0x04, // set gamma curve: valid values 1, 2, 4, 8
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0xF2, CMD_ARG, 0x01, // enable gamma adjustment, 0 - to disable
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0xE0, CMD_ARG, 0x3F, CMD_ARG, 0x25, CMD_ARG, 0x1C,
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CMD_ARG, 0x1E, CMD_ARG, 0x20, CMD_ARG, 0x12,
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CMD_ARG, 0x2A, CMD_ARG, 0x90, CMD_ARG, 0x24,
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CMD_ARG, 0x11, CMD_ARG, 0x00, CMD_ARG, 0x00,
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CMD_ARG, 0x00, CMD_ARG, 0x00, CMD_ARG, 0x00, // positive gamma correction
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0xE1, CMD_ARG, 0x20, CMD_ARG, 0x20, CMD_ARG, 0x20,
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CMD_ARG, 0x20, CMD_ARG, 0x05, CMD_ARG, 0x00,
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CMD_ARG, 0x15, CMD_ARG, 0xA7, CMD_ARG, 0x3D,
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CMD_ARG, 0x18, CMD_ARG, 0x25, CMD_ARG, 0x2A,
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CMD_ARG, 0x2B, CMD_ARG, 0x2B, CMD_ARG, 0x3A, // negative gamma correction
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// 0xB1, CMD_ARG, 0x08, CMD_ARG, 0x08, // frame rate control 1, use by default
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// 0xB4, CMD_ARG, 0x07, // display inversion, use by default
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0xC0, CMD_ARG, 0x0A, CMD_ARG, 0x02, // power control 1
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0xC1, CMD_ARG, 0x02, // power control 2
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0xC5, CMD_ARG, 0x50, CMD_ARG, 0x5B, // vcom control 1
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0xC7, CMD_ARG, 0x40, // vcom offset
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0x36, CMD_ARG, 0b10100000, // enable fake "vertical addressing" mode (for ili9341_setBlock() )
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0x29, // display on
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};
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static lcduint_t s_column;
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static lcduint_t s_page;
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static void ili9341_setBlock(lcduint_t x, lcduint_t y, lcduint_t w)
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{
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lcduint_t rx = w ? (x + w - 1) : (ssd1306_lcd.width - 1);
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s_column = x;
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s_page = y;
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ssd1306_intf.start();
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x2B);
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ssd1306_spiDataMode(1); // According to datasheet all args must be passed in data mode
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ssd1306_intf.send(x >> 8);
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ssd1306_intf.send(x & 0xFF);
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ssd1306_intf.send((rx < ssd1306_lcd.width ? rx : (ssd1306_lcd.width - 1)) >> 8);
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ssd1306_intf.send((rx < ssd1306_lcd.width ? rx : (ssd1306_lcd.width - 1)) & 0xFF);
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x2A);
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ssd1306_spiDataMode(1); // According to datasheet all args must be passed in data mode
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ssd1306_intf.send((y<<3) >> 8);
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ssd1306_intf.send((y<<3) & 0xFF);
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ssd1306_intf.send((((y<<3) + 7) < ssd1306_lcd.height ? ((y<<3) + 7) : (ssd1306_lcd.height - 1))>>8);
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ssd1306_intf.send((((y<<3) + 7) < ssd1306_lcd.height ? ((y<<3) + 7) : (ssd1306_lcd.height - 1)) & 0xFF);
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x2C);
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ssd1306_spiDataMode(1);
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}
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static void ili9341_setBlock2(lcduint_t x, lcduint_t y, lcduint_t w)
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{
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lcduint_t width = s_rotate_output ? ssd1306_lcd.height : ssd1306_lcd.width;
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lcduint_t height = s_rotate_output ? ssd1306_lcd.width : ssd1306_lcd.height;
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lcduint_t rx = w ? (x + w - 1) : (width - 1);
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ssd1306_intf.start();
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x2A);
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ssd1306_spiDataMode(1); // According to datasheet all args must be passed in data mode
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ssd1306_intf.send(x >> 8);
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ssd1306_intf.send(x & 0xFF);
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ssd1306_intf.send((rx < width ? rx : (width - 1))>>8);
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ssd1306_intf.send((rx < width ? rx : (width - 1)) & 0xFF);
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x2B);
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ssd1306_spiDataMode(1); // According to datasheet all args must be passed in data mode
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ssd1306_intf.send(y >> 8);
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ssd1306_intf.send(y & 0xFF);
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ssd1306_intf.send((height - 1) >> 8);
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ssd1306_intf.send((height - 1) & 0xFF);
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x2C);
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ssd1306_spiDataMode(1);
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}
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static void ili9341_nextPage(void)
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{
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ssd1306_intf.stop();
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ssd1306_lcd.set_block(s_column,s_page+1,0);
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}
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static void ili9341_nextPage2(void)
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{
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}
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void ili9341_setMode(lcd_mode_t mode)
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{
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s_rotation &= 0x03;
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s_rotation |= (mode == LCD_MODE_SSD1306_COMPAT ? 0x00 : 0x04);
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ili9341_setRotation( s_rotation );
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if (mode == LCD_MODE_SSD1306_COMPAT)
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{
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ssd1306_lcd.set_block = ili9341_setBlock;
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ssd1306_lcd.next_page = ili9341_nextPage;
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}
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else if (mode == LCD_MODE_NORMAL)
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{
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ssd1306_lcd.set_block = ili9341_setBlock2;
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ssd1306_lcd.next_page = ili9341_nextPage2;
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}
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}
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static void ili9341_sendPixels(uint8_t data)
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{
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for (uint8_t i=8; i>0; i--)
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{
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if ( data & 0x01 )
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{
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ssd1306_intf.send( (uint8_t)(ssd1306_color>>8) );
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ssd1306_intf.send( (uint8_t)(ssd1306_color) );
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}
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else
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{
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ssd1306_intf.send( 0B00000000 );
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ssd1306_intf.send( 0B00000000 );
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}
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data >>= 1;
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}
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}
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static void ili9341_sendPixelsBuffer(const uint8_t *buffer, uint16_t len)
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{
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while(len--)
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{
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ili9341_sendPixels(*buffer);
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buffer++;
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}
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}
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static void ili9341_sendPixel8(uint8_t data)
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{
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uint16_t color = RGB8_TO_RGB16(data);
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ssd1306_intf.send( color >> 8 );
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ssd1306_intf.send( color & 0xFF );
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}
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static void ili9341_sendPixel16(uint16_t color)
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{
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ssd1306_intf.send( color >> 8 );
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ssd1306_intf.send( color & 0xFF );
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}
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void ili9341_240x320_init()
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{
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ssd1306_lcd.type = LCD_TYPE_SSD1331;
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ssd1306_lcd.width = 240;
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ssd1306_lcd.height = (lcduint_t)320;
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s_rgb_bit = 0b00001000; // set BGR mode mapping
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ssd1306_lcd.set_block = ili9341_setBlock;
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ssd1306_lcd.next_page = ili9341_nextPage;
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ssd1306_lcd.send_pixels1 = ili9341_sendPixels;
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ssd1306_lcd.send_pixels_buffer1 = ili9341_sendPixelsBuffer;
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ssd1306_lcd.send_pixels8 = ili9341_sendPixel8;
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ssd1306_lcd.send_pixels16 = ili9341_sendPixel16;
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ssd1306_lcd.set_mode = ili9341_setMode;
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ssd1306_configureSpiDisplay(s_oled240x320_initData, sizeof(s_oled240x320_initData));
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}
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void ili9341_240x320_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
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{
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if (rstPin >=0)
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{
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pinMode(rstPin, OUTPUT);
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digitalWrite(rstPin, HIGH);
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/* Wait at least 1ms after VCC is up for LCD */
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delay(1);
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/* Perform reset operation of LCD display */
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digitalWrite(rstPin, LOW);
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delay(100);
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digitalWrite(rstPin, HIGH);
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delay(100);
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}
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s_ssd1306_spi_clock = 10000000;
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ssd1306_spiInit(cesPin, dcPin);
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ili9341_240x320_init();
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}
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void ili9341_setRotation(uint8_t rotation)
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{
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uint8_t ram_mode;
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if ((rotation^s_rotation) & 0x01)
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{
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uint16_t t = ssd1306_lcd.width;
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ssd1306_lcd.width = ssd1306_lcd.height;
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ssd1306_lcd.height = t;
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}
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s_rotation = (rotation & 0x03) | (s_rotation & 0x04);
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ssd1306_intf.start();
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x28);
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ssd1306_intf.send(0x36);
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ssd1306_spiDataMode(1);
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switch (s_rotation)
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{
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case 0:
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ram_mode = 0b10100000;
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break;
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case 1: // 90 degree CW
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ram_mode = 0b11010000;
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break;
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case 2: // 180 degree CW
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ram_mode = 0b01100000;
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break;
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case 3: // 270 degree CW
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ram_mode = 0b00000000;
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break;
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case 4:
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ram_mode = s_rotate_output ? 0b11100100: 0b10000100;
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break;
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case 5: // 90 degree CW
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ram_mode = 0b11100000;
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break;
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case 6: // 180 degree CW
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ram_mode = 0b01010100;
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break;
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default: // 270 degree CW
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ram_mode = 0b00100000;
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break;
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}
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ssd1306_intf.send( ram_mode | s_rgb_bit );
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ssd1306_spiDataMode(0);
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ssd1306_intf.send(0x29);
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ssd1306_intf.stop();
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}
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void ili9341_rotateOutput(uint8_t on)
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{
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s_rotate_output = on;
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ili9341_setRotation( s_rotation );
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}
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