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/**
******************************************************************************
* @file ls016b8uy.c
* @author MCD Application Team
* @brief This file includes the LCD driver for LS016B8UY LCD.
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "ls016b8uy.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Components
* @{
*/
/** @addtogroup ls016b8uy
* @brief This file provides a set of functions needed to drive the
* LS016B8UY LCD.
* @{
*/
/** @defgroup LS016B8UY_Private_TypesDefinitions
* @{
*/
typedef struct {
uint8_t red;
uint8_t green;
uint8_t blue;
} LS016B8UY_Rgb888;
/**
* @}
*/
/** @defgroup LS016B8UY_Private_Defines
* @{
*/
/**
* @}
*/
/** @defgroup LS016B8UY_Private_Macros
* @{
*/
/**
* @}
*/
/** @defgroup LS016B8UY_Private_Variables
* @{
*/
LCD_DrvTypeDef ls016b8uy_drv =
{
ls016b8uy_Init,
ls016b8uy_ReadID,
ls016b8uy_DisplayOn,
ls016b8uy_DisplayOff,
ls016b8uy_SetCursor,
ls016b8uy_WritePixel,
ls016b8uy_ReadPixel,
ls016b8uy_SetDisplayWindow,
ls016b8uy_DrawHLine,
ls016b8uy_DrawVLine,
ls016b8uy_GetLcdPixelWidth,
ls016b8uy_GetLcdPixelHeight,
ls016b8uy_DrawBitmap,
ls016b8uy_DrawRGBImage,
};
static uint16_t WindowsXstart = 0;
static uint16_t WindowsYstart = 0;
static uint16_t WindowsXend = LS016B8UY_LCD_PIXEL_WIDTH-1;
static uint16_t WindowsYend = LS016B8UY_LCD_PIXEL_HEIGHT-1;
/**
* @}
*/
/** @defgroup LS016B8UY_Private_FunctionPrototypes
* @{
*/
static LS016B8UY_Rgb888 ls016b8uy_ReadPixel_rgb888(uint16_t Xpos, uint16_t Ypos);
static void ls016b8uy_DrawRGBHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Xsize, uint8_t *pdata);
/**
* @}
*/
/** @defgroup LS016B8UY_Private_Functions
* @{
*/
/**
* @brief Initialize the LS016B8UY LCD Component.
* @param None
* @retval None
*/
void ls016b8uy_Init(void)
{
uint8_t parameter[4];
/* Initialize LS016B8UY low level bus layer ----------------------------------*/
LCD_IO_Init();
parameter[0] = 0x00; /* VSYNC output */
ls016b8uy_WriteReg(LCD_CMD_VSYNC_OUTPUT, parameter, 1);
parameter[0] = 0x06; /* 18 bits color mode */
ls016b8uy_WriteReg(LCD_CMD_COLOR_MODE, parameter, 1);
parameter[0] = 0x01; /* Panel setting command <No.1 UN-Lock> */
parameter[1] = 0xFE;
ls016b8uy_WriteReg(LCD_CMD_PANEL_SETTING_1, parameter, 2);
parameter[0] = 0xDE; /* Panel setting command <No.2 UN-Lock> */
parameter[1] = 0x21;
ls016b8uy_WriteReg(LCD_CMD_PANEL_SETTING_2, parameter, 2);
parameter[0] = 0x05; /* V-Porch setting */
parameter[1] = 0x33;
ls016b8uy_WriteReg(LCD_CMD_PANEL_V_PORCH, parameter, 2);
parameter[0] = 0x05; /* Idle mode V-Porch setting */
parameter[1] = 0x33;
ls016b8uy_WriteReg(LCD_CMD_PANEL_IDLE_V_PORCH, parameter, 2);
parameter[0] = 0x04; /* panel timing setting */
parameter[1] = 0x03;
ls016b8uy_WriteReg(LCD_CMD_PANEL_TIMING_1, parameter, 2);
parameter[0] = 0x5E; /* panel timing setting */
parameter[1] = 0x08;
ls016b8uy_WriteReg(LCD_CMD_PANEL_TIMING_2, parameter, 2);
parameter[0] = 0x0A; /* panel timing setting */
parameter[1] = 0x0C;
parameter[2] = 0x02;
ls016b8uy_WriteReg(LCD_CMD_PANEL_TIMING_3, parameter, 3);
parameter[0] = 0x03; /* panel timing setting */
parameter[1] = 0x04;
ls016b8uy_WriteReg(LCD_CMD_PANEL_TIMING_4, parameter, 2);
parameter[0] = 0x0C; /* panel power setting */
ls016b8uy_WriteReg(LCD_CMD_PANEL_POWER, parameter, 1);
parameter[0] = 0x02; /* Oscillator Setting = 2MHz */
ls016b8uy_WriteReg(LCD_CMD_OSCILLATOR, parameter, 1);
parameter[0] = 0x53; /* GVDD = 4.76V setting */
ls016b8uy_WriteReg(LCD_CMD_GVDD, parameter, 1);
parameter[0] = 0x00; /* Reload MTP After SLPOUT */
parameter[1] = 0x45; /* VCOMH=3.76V */
ls016b8uy_WriteReg(LCD_CMD_RELOAD_MTP_VCOMH, parameter, 2);
parameter[0] = 0x03; /* OP-Amp Ability. (Normal) */
parameter[1] = 0x12; /* Step-up Cycle for AVDD Booster Freq./4 */
ls016b8uy_WriteReg(LCD_CMD_OPAMP, parameter, 2);
parameter[0] = 0x00; /* Tearing Effect Option (00h:VSYNC Interface OFF, 01h:VSYNC Interface ON) */
ls016b8uy_WriteReg(LCD_CMD_TEARING_EFFECT, parameter, 1);
ls016b8uy_WriteReg(LCD_CMD_PANEL_SETTING_LOCK, parameter, 0); /* Panel setting command <Lock> */
ls016b8uy_WriteReg(LCD_CMD_SLEEP_OUT, parameter, 0); /* Sleep Out Command */
LCD_IO_Delay(150); /* Wait for 150ms */
parameter[0] = 0x00; /* CASET */
parameter[1] = 0x1E;
parameter[2] = 0x00;
parameter[3] = 0xD1;
ls016b8uy_WriteReg(LCD_CMD_CASET, parameter, 4);
parameter[0] = 0x00; /* RASET */
parameter[1] = 0x00;
parameter[2] = 0x00;
parameter[3] = 0xB3;
ls016b8uy_WriteReg(LCD_CMD_RASET, parameter, 4);
parameter[0] = 0x83; /* Normal display for Driver Down side */
ls016b8uy_WriteReg(LCD_CMD_NORMAL_DISPLAY, parameter, 1);
ls016b8uy_DisplayOn(); /* Display ON command */
}
/**
* @brief Enables the Display.
* @param None
* @retval None
*/
void ls016b8uy_DisplayOn(void)
{
ls016b8uy_WriteReg(LCD_CMD_DISPLAY_ON, (uint8_t*)NULL, 0); /* Display ON command */
ls016b8uy_WriteReg(LCD_CMD_IDLE_MODE_OFF, (uint8_t*)NULL, 0); /* Idle mode OFF command */
}
/**
* @brief Disables the Display.
* @param None
* @retval None
*/
void ls016b8uy_DisplayOff(void)
{
ls016b8uy_WriteReg(LCD_CMD_DISPLAY_OFF, (uint8_t*)NULL, 0); /* Display OFF command */
LCD_IO_Delay(20); /* Wait for 20ms */
ls016b8uy_WriteReg(LCD_CMD_SLEEP_IN, (uint8_t*)NULL, 0); /* Sleep In Command */
LCD_IO_Delay(150); /* Wait for 150ms */
}
/**
* @brief Get the LCD pixel Width.
* @param None
* @retval The Lcd Pixel Width
*/
uint16_t ls016b8uy_GetLcdPixelWidth(void)
{
return (uint16_t)LS016B8UY_LCD_PIXEL_WIDTH;
}
/**
* @brief Get the LCD pixel Height.
* @param None
* @retval The Lcd Pixel Height
*/
uint16_t ls016b8uy_GetLcdPixelHeight(void)
{
return (uint16_t)LS016B8UY_LCD_PIXEL_HEIGHT;
}
/**
* @brief Get the LS016B8UY ID.
* @param None
* @retval The LS016B8UY ID
*/
uint16_t ls016b8uy_ReadID(void)
{
LCD_IO_Init();
/* TODO : LCD read ID command not known for now, so assumption that the connected LCD is LS016B8UY */
return (LS016B8UY_ID);
}
/**
* @brief Set Cursor position.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval None
*/
void ls016b8uy_SetCursor(uint16_t Xpos, uint16_t Ypos)
{
uint8_t parameter[4];
parameter[0] = 0x00; /* CASET */
parameter[1] = 0x1E + Xpos;
parameter[2] = 0x00;
parameter[3] = 0xD1 + Xpos;
ls016b8uy_WriteReg(LCD_CMD_CASET, parameter, 4);
parameter[0] = 0x00; /* RASET */
parameter[1] = 0x00 + Ypos;
parameter[2] = 0x00;
parameter[3] = 0xB3 + Ypos;
ls016b8uy_WriteReg(LCD_CMD_RASET, parameter, 4);
}
/**
* @brief Write pixel.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param RGBCode: the RGB pixel color in RGB565 format
* @retval None
*/
void ls016b8uy_WritePixel(uint16_t Xpos, uint16_t Ypos, uint16_t RGBCode)
{
uint16_t r, g, b;
uint16_t rgb888_part1, rgb888_part2;
r = (RGBCode & 0xF800) >> 11; /* Extract red component from RGB565 pixel data */
g = (RGBCode & 0x07E0) >> 5; /* Extract green component from RGB565 pixel data */
b = (RGBCode & 0x001F) >> 0; /* Extract blue component from RGB565 pixel data */
/* Prepare data to write with new pixel components and read old pixel component */
rgb888_part1 = (r << 11) + (g << 2);
rgb888_part2 = (b << 11);
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, Ypos);
/* Prepare to write to LCD RAM */
ls016b8uy_WriteReg(LCD_CMD_WRITE_RAM, (uint8_t*)NULL, 0); /* RAM write data command */
/* Write RAM data */
LCD_IO_WriteData(rgb888_part1);
LCD_IO_WriteData(rgb888_part2);
}
/**
* @brief Read pixel.
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval The RGB pixel color in RGB565 format
*/
uint16_t ls016b8uy_ReadPixel(uint16_t Xpos, uint16_t Ypos)
{
LS016B8UY_Rgb888 rgb888;
uint8_t r, g, b;
uint16_t rgb565;
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, Ypos);
/* Read RGB888 data from LCD RAM */
rgb888 = ls016b8uy_ReadPixel_rgb888(Xpos, Ypos);
/* Convert RGB888 to RGB565 */
r = ((rgb888.red & 0xF8) >> 3); /* Extract the red component 5 most significant bits */
g = ((rgb888.green & 0xFC) >> 2); /* Extract the green component 6 most significant bits */
b = ((rgb888.blue & 0xF8) >> 3); /* Extract the blue component 5 most significant bits */
rgb565 = ((uint16_t)(r) << 11) + ((uint16_t)(g) << 5) + ((uint16_t)(b) << 0);
return (rgb565);
}
/**
* @brief Writes to the selected LCD register.
* @param Command: command value (or register address as named in LS016B8UY doc).
* @param Parameters: pointer on parameters value (if command uses one or several parameters).
* @param NbParameters: number of command parameters (0 if no parameter)
* @retval None
*/
void ls016b8uy_WriteReg(uint8_t Command, uint8_t *Parameters, uint8_t NbParameters)
{
uint8_t i;
/* Send command */
LCD_IO_WriteReg(Command);
/* Send command's parameters if any */
for (i=0; i<NbParameters; i++)
{
LCD_IO_WriteData(Parameters[i]);
}
/**
* @brief Reads the selected LCD Register.
* @param Command: command value (or register address as named in LS016B8UY doc).
* @retval Register Value.
*/
uint8_t ls016b8uy_ReadReg(uint8_t Command)
{
/* Send command */
LCD_IO_WriteReg(Command);
/* Read dummy data */
LCD_IO_ReadData();
/* Read register value */
return (LCD_IO_ReadData());
}
/**
* @brief Sets a display window
* @param Xpos: specifies the X bottom left position.
* @param Ypos: specifies the Y bottom left position.
* @param Height: display window height.
* @param Width: display window width.
* @retval None
*/
void ls016b8uy_SetDisplayWindow(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height)
{
if (Xpos < LS016B8UY_LCD_PIXEL_WIDTH)
{
WindowsXstart = Xpos;
}
else
{
WindowsXstart = 0;
}
if (Ypos < LS016B8UY_LCD_PIXEL_HEIGHT)
{
WindowsYstart = Ypos;
}
else
{
WindowsYstart = 0;
}
if (Width + Xpos <= LS016B8UY_LCD_PIXEL_WIDTH)
{
WindowsXend = Width + Xpos - 1;
}
else
{
WindowsXend = LS016B8UY_LCD_PIXEL_WIDTH - 1;
}
if (Height + Ypos <= LS016B8UY_LCD_PIXEL_HEIGHT)
{
WindowsYend = Height + Ypos - 1;
}
else
{
WindowsYend = LS016B8UY_LCD_PIXEL_HEIGHT-1;
}
}
/**
* @brief Draw vertical line.
* @param RGBCode: Specifies the RGB color in RGB565 format
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param Length: specifies the Line length.
* @retval None
*/
void ls016b8uy_DrawHLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint16_t counter = 0;
uint16_t r, g, b;
uint16_t rgb888_part1, rgb888_part2, rgb888_part3;
r = (RGBCode & 0xF800) >> 11; /* Extract red component from RGB565 pixel data */
g = (RGBCode & 0x07E0) >> 5; /* Extract green component from RGB565 pixel data */
b = (RGBCode & 0x001F) >> 0; /* Extract blue component from RGB565 pixel data */
rgb888_part1 = (r << 11) + (g << 2); /* Build pattern first part to write in LCD RAM */
rgb888_part2 = (b << 11) + (r << 3); /* Build pattern second part to write in LCD RAM */
rgb888_part3 = (g << 10) + (b << 3); /* Build pattern third part to write in LCD RAM */
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, Ypos);
/* Prepare to write to LCD RAM */
ls016b8uy_WriteReg(LCD_CMD_WRITE_RAM, (uint8_t*)NULL, 0); /* RAM write data command */
/* Sent a complete line */
for(counter = 0; counter < Length; counter+=2)
{
/* Write 2 pixels at a time by performing 3 access (pixels coded on 24 bits in LCD RAM whereas access are coded on 16 bits) */
LCD_IO_WriteData(rgb888_part1);
LCD_IO_WriteData(rgb888_part2);
if (counter != (Length-1)) /* When writing last pixel when Length is odd, the third part is not written */
{
LCD_IO_WriteData(rgb888_part3);
}
}
}
/**
* @brief Draw vertical line.
* @param RGBCode: Specifies the RGB color
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @param Length: specifies the Line length.
* @retval None
*/
void ls016b8uy_DrawVLine(uint16_t RGBCode, uint16_t Xpos, uint16_t Ypos, uint16_t Length)
{
uint16_t counter = 0;
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, Ypos);
/* Prepare to write to LCD RAM */
ls016b8uy_WriteReg(LCD_CMD_WRITE_RAM, (uint8_t*)NULL, 0); /* RAM write data command */
/* Fill a complete vertical line */
for(counter = 0; counter < Length; counter++)
{
ls016b8uy_WritePixel(Xpos, Ypos + counter, RGBCode);
}
}
/**
* @brief Displays a bitmap picture.
* @param BmpAddress: Bmp picture address.
* @param Xpos: Bmp X position in the LCD
* @param Ypos: Bmp Y position in the LCD
* @retval None
*/
void ls016b8uy_DrawBitmap(uint16_t Xpos, uint16_t Ypos, uint8_t *pbmp)
{
uint32_t index = 0, size = 0;
uint32_t posY;
uint32_t nb_line = 0;
uint16_t Xsize = WindowsXend - WindowsXstart + 1;
uint16_t Ysize = WindowsYend - WindowsYstart + 1;
/* Read bitmap size */
size = *(volatile uint16_t *) (pbmp + 2);
size |= (*(volatile uint16_t *) (pbmp + 4)) << 16;
/* Get bitmap data address offset */
index = *(volatile uint16_t *) (pbmp + 10);
index |= (*(volatile uint16_t *) (pbmp + 12)) << 16;
size = (size - index)/2;
pbmp += index;
for (posY = (Ypos + Ysize); posY > Ypos; posY--) /* In BMP files the line order is inverted */
{
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, posY - 1);
/* Draw one line of the picture */
ls016b8uy_DrawRGBHLine(Xpos, posY - 1, Xsize, (pbmp + (nb_line * Xsize * 2)));
nb_line++;
}
}
/**
* @brief Displays picture.
* @param pdata: picture address.
* @param Xpos: Image X position in the LCD
* @param Ypos: Image Y position in the LCD
* @param Xsize: Image X size in the LCD
* @param Ysize: Image Y size in the LCD
* @retval None
*/
void ls016b8uy_DrawRGBImage(uint16_t Xpos, uint16_t Ypos, uint16_t Xsize, uint16_t Ysize, uint8_t *pdata)
{
uint32_t posY;
uint32_t nb_line = 0;
for (posY = Ypos; posY < (Ypos + Ysize); posY ++)
{
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, posY);
/* Draw one line of the picture */
ls016b8uy_DrawRGBHLine(Xpos, posY, Xsize, (pdata + (nb_line * Xsize * 2)));
nb_line++;
}
}
/******************************************************************************
Static Functions
*******************************************************************************/
/**
* @brief Read pixel from LCD RAM in RGB888 format
* @param Xpos: specifies the X position.
* @param Ypos: specifies the Y position.
* @retval Each RGB pixel color components in a structure
*/
static LS016B8UY_Rgb888 ls016b8uy_ReadPixel_rgb888(uint16_t Xpos, uint16_t Ypos)
{
LS016B8UY_Rgb888 rgb888;
uint16_t rgb888_part1, rgb888_part2;
/* In LCD RAM, pixels are 24 bits packed and read with 16 bits access
* Here is the pixels components arrangement in memory :
* bits: 15 14 13 12 11 10 09 08 | 07 06 05 04 03 02 01 00
* address 0 : red pixel 0 X X | green pixel 0 X X
* address 1 : blue pixel 0 X X | red pixel 1 X X
* address 2 : green pixel 1 X X | blue pixel 1 X X
*/
/* Set Cursor */
ls016b8uy_SetCursor(Xpos, Ypos);
/* Prepare to read LCD RAM */
ls016b8uy_WriteReg(LCD_CMD_READ_RAM, (uint8_t*)NULL, 0); /* RAM read data command */
/* Dummy read */
LCD_IO_ReadData();
/* Read first part of the RGB888 data */
rgb888_part1 = LCD_IO_ReadData();
/* Read first part of the RGB888 data */
rgb888_part2 = LCD_IO_ReadData();
/* red component */
rgb888.red = (rgb888_part1 & 0xFC00) >> 8;
/* green component */
rgb888.green = (rgb888_part1 & 0x00FC) >> 0;
/* blue component */
rgb888.blue = (rgb888_part2 & 0xFC00) >> 8;
return rgb888;
}
/**
* @brief Displays a single picture line.
* @param pdata: picture address.
* @param Xpos: Image X position in the LCD
* @param Ypos: Image Y position in the LCD
* @param Xsize: Image X size in the LCD
* @retval None
*/
static void ls016b8uy_DrawRGBHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Xsize, uint8_t *pdata)
{
uint32_t i = 0;
uint32_t posX;
uint16_t r, g, b;
uint16_t rgb888_part;
uint16_t *rgb565 = (uint16_t*)pdata;
/* Prepare to write to LCD RAM */
ls016b8uy_WriteReg(LCD_CMD_WRITE_RAM, (uint8_t*)NULL, 0); /* RAM write data command */
for (posX = Xpos; posX < (Xsize + Xpos); posX += 2)
{
if ((posX >= WindowsXstart) && (Ypos >= WindowsYstart) && /* Check we are in the defined window */
(posX <= WindowsXend) && (Ypos <= WindowsYend))
{
/* Write pixels in LCD RAM after RGB565 -> RGB888 conversion */
/* As data in LCD RAM are 24bits packed, three 16 bits writes access are needed to transmit 2 pixels data */
r = (rgb565[i] & 0xF800) >> 11; /* Extract red component from first RGB565 pixel data */
g = (rgb565[i] & 0x07E0) >> 5; /* Extract green component from first RGB565 pixel data */
rgb888_part = (r << 11) + (g << 2); /* Build data to be written in LCD RAM */
LCD_IO_WriteData(rgb888_part);
b = (rgb565[i] & 0x001F) >> 0; /* Extract blue component from first RGB565 pixel data */
r = (rgb565[i+1] & 0xF800) >> 11; /* Extract red component from second RGB565 pixel data */
rgb888_part = (b << 11) + (r << 3); /* Build data to be written in LCD RAM */
LCD_IO_WriteData(rgb888_part);
if (posX != (Xsize + Xpos - 1)) /* When writing last pixel when size is odd, the third part is not written */
{
g = (rgb565[i+1] & 0x07E0) >> 5; /* Extract green component from second RGB565 pixel data */
b = (rgb565[i+1] & 0x001F) >> 0; /* Extract blue component from second RGB565 pixel data */
rgb888_part = (g << 10) + (b << 3); /* Build data to be written in LCD RAM */
LCD_IO_WriteData(rgb888_part);
}
i += 2;
}
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
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