This class drives the LCD display (4-inch 800x472 LCD-TFT) present on STM32F769I-DISCO board

Dependents:   Datarecorder2 DISCO-F769NI_several_example

Revision:
0:fd7c63b20d54
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LCD_DISCO_F769NI.h	Fri Feb 10 13:31:58 2017 +0100
@@ -0,0 +1,462 @@
+/* Copyright (c) 2010-2011 mbed.org, MIT License
+*
+* 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.
+*/
+
+#ifndef __LCD_DISCO_F769NI_H
+#define __LCD_DISCO_F769NI_H
+
+#ifdef TARGET_DISCO_F769NI
+
+#include "mbed.h"
+#include "stm32f769i_discovery_lcd.h"
+
+/*
+  This class drives the LCD display (4-inch 800x472 LCD-TFT) present on STM32F769I-DISCO board.
+
+  Usage:
+
+  #include "mbed.h"
+  #include "LCD_DISCO_F769NI.h"
+
+  LCD_DISCO_F769NI lcd;
+
+  int main()
+  {
+      lcd.DisplayStringAt(0, LINE(1), (uint8_t *)"MBED EXAMPLE", CENTER_MODE);
+      wait(1);
+      lcd.Clear(LCD_COLOR_BLUE);
+      lcd.SetBackColor(LCD_COLOR_BLUE);
+      lcd.SetTextColor(LCD_COLOR_WHITE);
+      lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"DISCOVERY STM32F769NI", CENTER_MODE);
+      while(1)
+      {
+      }
+  }
+*/
+class LCD_DISCO_F769NI
+{
+
+public:
+    //! Constructor
+    LCD_DISCO_F769NI();
+
+    //! Destructor
+    ~LCD_DISCO_F769NI();
+
+    /**
+      * @brief  Initializes the DSI LCD.
+      * @param  None
+      * @retval LCD state
+      */
+    uint8_t Init(void);
+
+    /**
+      * @brief  Initializes the DSI LCD.
+      * The ititialization is done as below:
+      *     - DSI PLL ititialization
+      *     - DSI ititialization
+      *     - LTDC ititialization
+      *     - OTM8009A LCD Display IC Driver ititialization
+      * @param  None
+      * @retval LCD state
+      */
+    uint8_t InitEx(LCD_OrientationTypeDef orientation);
+
+    /**
+      * @brief  Initializes the DSI for HDMI monitor.
+      * The ititialization is done as below:
+      *     - DSI PLL ititialization
+      *     - DSI ititialization
+      *     - LTDC ititialization
+      *     - DSI-HDMI ADV7533 adapter device ititialization
+      * @param  format : HDMI format could be HDMI_FORMAT_720_480 or HDMI_FORMAT_720_576
+      * @retval LCD state
+      */
+    uint8_t HDMIInitEx(uint8_t format);
+
+    /**
+      * @brief  BSP LCD Reset
+      *         Hw reset the LCD DSI activating its XRES signal (active low for some time);
+      *         and desactivating it later.
+      */
+    void Reset(void);
+
+    /**
+      * @brief  Gets the LCD X size.
+      * @retval Used LCD X size
+      */
+    uint32_t GetXSize(void);
+
+    /**
+      * @brief  Gets the LCD Y size.
+      * @retval Used LCD Y size
+      */
+    uint32_t GetYSize(void);
+
+    /**
+      * @brief  Set the LCD X size.
+      * @param  imageWidthPixels : uint32_t image width in pixels unit
+      * @retval None
+      */
+    void SetXSize(uint32_t imageWidthPixels);
+
+    /**
+      * @brief  Set the LCD Y size.
+      * @param  imageHeightPixels : uint32_t image height in lines unit
+      */
+    void SetYSize(uint32_t imageHeightPixels);
+
+    /**
+      * @brief  Initializes the LCD layers.
+      * @param  LayerIndex: Layer foreground or background
+      * @param  FB_Address: Layer frame buffer
+      * @retval None
+      */
+    void LayerDefaultInit(uint16_t LayerIndex, uint32_t FB_Address);
+
+    /**
+      * @brief  Selects the LCD Layer.
+      * @param  LayerIndex: Layer foreground or background
+      */
+    void SelectLayer(uint32_t LayerIndex);
+
+    /**
+      * @brief  Sets an LCD Layer visible
+      * @param  LayerIndex: Visible Layer
+      * @param  State: New state of the specified layer
+      *          This parameter can be one of the following values:
+      *            @arg  ENABLE
+      *            @arg  DISABLE
+      */
+    void SetLayerVisible(uint32_t LayerIndex, FunctionalState State);
+
+    /**
+      * @brief  Configures the transparency.
+      * @param  LayerIndex: Layer foreground or background.
+      * @param  Transparency: Transparency
+      *           This parameter must be a number between Min_Data = 0x00 and Max_Data = 0xFF
+      */
+    void SetTransparency(uint32_t LayerIndex, uint8_t Transparency);
+
+    /**
+      * @brief  Sets an LCD layer frame buffer address.
+      * @param  LayerIndex: Layer foreground or background
+      * @param  Address: New LCD frame buffer value
+      */
+    void SetLayerAddress(uint32_t LayerIndex, uint32_t Address);
+
+    /**
+      * @brief  Sets display window.
+      * @param  LayerIndex: Layer index
+      * @param  Xpos: LCD X position
+      * @param  Ypos: LCD Y position
+      * @param  Width: LCD window width
+      * @param  Height: LCD window height
+      */
+    void SetLayerWindow(uint16_t LayerIndex, uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height);
+
+    /**
+      * @brief  Configures and sets the color keying.
+      * @param  LayerIndex: Layer foreground or background
+      * @param  RGBValue: Color reference
+      */
+    void SetColorKeying(uint32_t LayerIndex, uint32_t RGBValue);
+
+    /**
+      * @brief  Disables the color keying.
+      * @param  LayerIndex: Layer foreground or background
+      */
+    void ResetColorKeying(uint32_t LayerIndex);
+
+    /**
+      * @brief  Sets the LCD text color.
+      * @param  Color: Text color code ARGB(8-8-8-8);
+      */
+    void SetTextColor(uint32_t Color);
+
+    /**
+      * @brief  Gets the LCD text color.
+      * @retval Used text color.
+      */
+    uint32_t GetTextColor(void);
+
+    /**
+      * @brief  Sets the LCD background color.
+      * @param  Color: Layer background color code ARGB(8-8-8-8);
+      */
+    void SetBackColor(uint32_t Color);
+
+    /**
+      * @brief  Gets the LCD background color.
+      * @retval Used background color
+      */
+    uint32_t GetBackColor(void);
+
+    /**
+      * @brief  Sets the LCD text font.
+      * @param  fonts: Layer font to be used
+      */
+    void SetFont(sFONT *fonts);
+
+    /**
+      * @brief  Gets the LCD text font.
+      * @retval Used layer font
+      */
+    sFONT *GetFont(void);
+
+    /**
+      * @brief  Reads an LCD pixel.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @retval RGB pixel color
+      */
+    uint32_t ReadPixel(uint16_t Xpos, uint16_t Ypos);
+
+    /**
+      * @brief  Clears the whole currently active layer of LTDC.
+      * @param  Color: Color of the background
+      */
+    void Clear(uint32_t Color);
+
+    /**
+      * @brief  Clears the selected line in currently active layer.
+      * @param  Line: Line to be cleared
+      */
+    void ClearStringLine(uint32_t Line);
+
+    /**
+      * @brief  Displays one character in currently active layer.
+      * @param  Xpos: Start column address
+      * @param  Ypos: Line where to display the character shape.
+      * @param  Ascii: Character ascii code
+      *           This parameter must be a number between Min_Data = 0x20 and Max_Data = 0x7E
+      */
+    void DisplayChar(uint16_t Xpos, uint16_t Ypos, uint8_t Ascii);
+
+    /**
+      * @brief  Displays characters in currently active layer.
+      * @param  Xpos: X position (in pixel);
+      * @param  Ypos: Y position (in pixel);
+      * @param  Text: Pointer to string to display on LCD
+      * @param  Mode: Display mode
+      *          This parameter can be one of the following values:
+      *            @arg  CENTER_MODE
+      *            @arg  RIGHT_MODE
+      *            @arg  LEFT_MODE
+      */
+    void DisplayStringAt(uint16_t Xpos, uint16_t Ypos, uint8_t *Text, Text_AlignModeTypdef Mode);
+
+    /**
+      * @brief  Displays a maximum of 60 characters on the LCD.
+      * @param  Line: Line where to display the character shape
+      * @param  ptr: Pointer to string to display on LCD
+      */
+    void DisplayStringAtLine(uint16_t Line, uint8_t *ptr);
+
+    /**
+      * @brief  Draws an horizontal line in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  Length: Line length
+      */
+    void DrawHLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length);
+
+    /**
+      * @brief  Draws a vertical line in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  Length: Line length
+      */
+    void DrawVLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length);
+
+    /**
+      * @brief  Draws an uni-line (between two points); in currently active layer.
+      * @param  x1: Point 1 X position
+      * @param  y1: Point 1 Y position
+      * @param  x2: Point 2 X position
+      * @param  y2: Point 2 Y position
+      */
+    void DrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2);
+
+    /**
+      * @brief  Draws a rectangle in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  Width: Rectangle width
+      * @param  Height: Rectangle height
+      */
+    void DrawRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height);
+
+    /**
+      * @brief  Draws a circle in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  Radius: Circle radius
+      */
+    void DrawCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius);
+
+    /**
+      * @brief  Draws an poly-line (between many points); in currently active layer.
+      * @param  Points: Pointer to the points array
+      * @param  PointCount: Number of points
+      */
+    void DrawPolygon(pPoint Points, uint16_t PointCount);
+
+    /**
+      * @brief  Draws an ellipse on LCD in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  XRadius: Ellipse X radius
+      * @param  YRadius: Ellipse Y radius
+      */
+    void DrawEllipse(int Xpos, int Ypos, int XRadius, int YRadius);
+
+    /**
+      * @brief  Draws a bitmap picture loaded in the internal Flash (32 bpp); in currently active layer.
+      * @param  Xpos: Bmp X position in the LCD
+      * @param  Ypos: Bmp Y position in the LCD
+      * @param  pbmp: Pointer to Bmp picture address in the internal Flash
+      */
+    void DrawBitmap(uint32_t Xpos, uint32_t Ypos, uint8_t *pbmp);
+
+    /**
+      * @brief  Draws a full rectangle in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  Width: Rectangle width
+      * @param  Height: Rectangle height
+      */
+    void FillRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height);
+
+    /**
+      * @brief  Draws a full circle in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  Radius: Circle radius
+      */
+    void FillCircle(uint16_t Xpos, uint16_t Ypos, uint16_t Radius);
+
+    /**
+      * @brief  Draws a full poly-line (between many points); in currently active layer.
+      * @param  Points: Pointer to the points array
+      * @param  PointCount: Number of points
+      */
+    void FillPolygon(pPoint Points, uint16_t PointCount);
+
+    /**
+      * @brief  Draws a full ellipse in currently active layer.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  XRadius: Ellipse X radius
+      * @param  YRadius: Ellipse Y radius
+      */
+    void FillEllipse(int Xpos, int Ypos, int XRadius, int YRadius);
+
+    /**
+      * @brief  Switch back on the display if was switched off by previous call of DisplayOff();.
+      *         Exit DSI ULPM mode if was allowed and configured in Dsi Configuration.
+      */
+    void DisplayOn(void);
+
+    /**
+      * @brief  Switch Off the display.
+      *         Enter DSI ULPM mode if was allowed and configured in Dsi Configuration.
+      */
+    void DisplayOff(void);
+
+    /**
+      * @brief  Set the brightness value
+      * @param  BrightnessValue: [00: Min (black);, 100 Max]
+      */
+    void SetBrightness(uint8_t BrightnessValue);
+
+    /**
+      * @brief  Returns the ID of connected screen by checking the HDMI
+      *        (adv7533 component); ID or LCD DSI (via TS ID) ID.
+      * @param  None
+      * @retval LCD ID
+      */
+    static uint16_t LCD_IO_GetID(void);
+
+    /**
+      * @brief  De-Initializes the BSP LCD Msp
+      * Application can surcharge if needed this function implementation.
+      */
+    __weak void MspDeInit(void);
+
+    /**
+      * @brief  Initialize the BSP LCD Msp.
+      * Application can surcharge if needed this function implementation
+      */
+    __weak void MspInit(void);
+
+    /**
+      * @brief  Draws a pixel on LCD.
+      * @param  Xpos: X position
+      * @param  Ypos: Y position
+      * @param  RGB_Code: Pixel color in ARGB mode (8-8-8-8);
+      */
+    void DrawPixel(uint16_t Xpos, uint16_t Ypos, uint32_t RGB_Code);
+
+    /**
+      * @brief  Draws a character on LCD.
+      * @param  Xpos: Line where to display the character shape
+      * @param  Ypos: Start column address
+      * @param  c: Pointer to the character data
+      */
+    static void DrawChar(uint16_t Xpos, uint16_t Ypos, const uint8_t *c);
+
+    /**
+      * @brief  Fills a triangle (between 3 points);.
+      * @param  x1: Point 1 X position
+      * @param  y1: Point 1 Y position
+      * @param  x2: Point 2 X position
+      * @param  y2: Point 2 Y position
+      * @param  x3: Point 3 X position
+      * @param  y3: Point 3 Y position
+      */
+    static void FillTriangle(uint16_t x1, uint16_t x2, uint16_t x3, uint16_t y1, uint16_t y2, uint16_t y3);
+
+    /**
+      * @brief  Fills a buffer.
+      * @param  LayerIndex: Layer index
+      * @param  pDst: Pointer to destination buffer
+      * @param  xSize: Buffer width
+      * @param  ySize: Buffer height
+      * @param  OffLine: Offset
+      * @param  ColorIndex: Color index
+      */
+    static void LL_FillBuffer(uint32_t LayerIndex, void *pDst, uint32_t xSize, uint32_t ySize, uint32_t OffLine, uint32_t ColorIndex);
+
+    /**
+      * @brief  Converts a line to an ARGB8888 pixel format.
+      * @param  pSrc: Pointer to source buffer
+      * @param  pDst: Output color
+      * @param  xSize: Buffer width
+      * @param  ColorMode: Input color mode
+      */
+    static void LL_ConvertLineToARGB8888(void *pSrc, void *pDst, uint32_t xSize, uint32_t ColorMode);
+
+private:
+
+};
+
+#else
+#error "This class must be used with DISCO_F746NG board only."
+#endif // TARGET_DISCO_F746NG
+
+#endif