Added led matrix

2023-01-17 16:30:14 +01:00
parent 58b63fb7a2
commit 027dd38eb9
4 changed files with 328 additions and 23 deletions
@@ -0,0 +1,160 @@
+// --------------------------------------------------------------------------------------------------------------------
+/// \file  ledmatrix.cpp
+/// \brief Description
+// --------------------------------------------------------------------------------------------------------------------
+// 
+// vbchaos software design
+//
+// --------------------------------------------------------------------------------------------------------------------
+/// $Revision: $
+/// $Author: $
+/// $Date: $
+//  (c) 2023 vbchaos
+// --------------------------------------------------------------------------------------------------------------------
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// Include files
+// --------------------------------------------------------------------------------------------------------------------
+
+#include "ledmatrix.h"
+#include "logger.h"
+#include "string.h"
+
+// --------------------------------------------------------------------------------------------------------------------
+// Constant and macro definitions
+// --------------------------------------------------------------------------------------------------------------------
+
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// Type definitions
+// --------------------------------------------------------------------------------------------------------------------
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// File-scope variables
+// --------------------------------------------------------------------------------------------------------------------
+
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// Function declarations
+// --------------------------------------------------------------------------------------------------------------------
+
+
+
+// --------------------------------------------------------------------------------------------------------------------
+// Function definitions
+// --------------------------------------------------------------------------------------------------------------------
+
+SemaphoreHandle_t LEDMatrix::taskSemaphore = 0;
+TaskHandle_t LEDMatrix::matrixTaskHandle = NULL;
+
+LEDMatrix::LEDMatrix(LEDMatrix_Parameters_t* parameters)
+{
+   // Take the parameters
+   LEDMatrix::parameters = *parameters;
+   // Calculate the total number of pixels
+   LEDMatrix::numberOfPixels = parameters->width * parameters->height;
+   // Create the matrix storage
+   matrix = new LEDMatrix_Pixel_t[parameters->width * parameters->height];
+   // Create the second matrix, that is actually transmitted to the periphery
+
+   // Reset the matrix to all 0 (all LEDs off)
+//   memset(&matrix, 0, sizeof(matrix));
+
+   // Create the task Semaphore
+   vSemaphoreCreateBinary(LEDMatrix::taskSemaphore);
+   // Create the matrix task
+   xTaskCreate(matrixTask, (const char*)"matrixTask", 4096, this, 3, &LEDMatrix::matrixTaskHandle);
+
+   for (int i = 0; i < numberOfPixels; i++)
+   {
+      matrix[i].on = false;
+      matrix[i].green = 0x1F;
+   }
+
+   LOGGER_DEBUG("---- %i -----", matrix[0].green);
+
+}
+
+void LEDMatrix::setPixelValue(unsigned int row, unsigned int colum, bool value)
+{
+   unsigned int rowC = 0;
+   unsigned int colC = 0;
+   unsigned int pixelAddress = 0;
+
+   // Determine the actual row coordinate based on the matrix orientation
+   if (parameters.columOrientation == LEDMATRIX_ORIENTATION_COLUM_UP_DOWN)
+   {
+      rowC = row;
+   }
+   else if (parameters.columOrientation == LEDMATRIX_ORIENTATION_COLUM_DOWN_UP)
+   {
+      rowC = parameters.height - row;
+   }
+
+   // Determine the actual row coordinate based on the matrix orientation
+   if (parameters.rowOrientation == LEDMATRIX_ORIENTATION_ROW_LEFT_RIGHT)
+   {
+      colC = colum;
+   }
+   else if (parameters.rowOrientation == LEDMATRIX_ORIENTATION_ROW_RIGHT_LEFT)
+   {
+      colC = parameters.width - colum;
+   }
+
+   // Calculate the pixel address in the pixel array based on the previous information
+   if (parameters.matrixOrientation == LEDMATRIX_ORIENTATION_COLUM)
+   {
+      pixelAddress = (rowC - 1) * (colC + 1);
+   }
+
+   LOGGER_DEBUG("Calculated address: %i   (%i:%i)", pixelAddress, rowC, colC);
+   // Update the pixel value
+   matrix[pixelAddress].on = value;
+
+
+
+   // Release the semaphore to trigger an matrix update
+   xSemaphoreGive(LEDMatrix::taskSemaphore);
+}
+
+
+
+
+void LEDMatrix::matrixTask(void* parameters)
+{
+   LEDMatrix* ledmatrix = (LEDMatrix*)parameters;
+
+   uint8_t matrix[ledmatrix->numberOfPixels * 3];
+   memset(&matrix, 0, sizeof(matrix));
+
+   while(1)
+   {
+      xSemaphoreTake(ledmatrix->taskSemaphore, 1000);
+      for (int i = 0; i < ledmatrix->numberOfPixels; i++)
+      {
+         if (ledmatrix->matrix[i].on)
+         {
+            matrix[i * 3 + 0] = ledmatrix->matrix[i].red;
+            matrix[i * 3 + 1] = ledmatrix->matrix[i].green;
+            matrix[i * 3 + 2] = ledmatrix->matrix[i].blue;
+         }
+         else
+         {
+            matrix[i * 3 + 0] = 0;
+            matrix[i * 3 + 1] = 0;
+            matrix[i * 3 + 2] = 0;
+         }
+
+      }
+      LOGGER_DEBUG("HERE AGAIN");
+      // Re-draw the matrix every 10 seconds anyhow
+      rmt_transmit(*ledmatrix->parameters.rmtChannel, *ledmatrix->parameters.rmtEncoder, matrix, sizeof(matrix), ledmatrix->parameters.rmtConfig);
+
+   }
+}
+
+