Moved platform

git-svn-id: https://svn.vbchaos.nl/svn/hsb/trunk@222 05563f52-14a8-4384-a975-3d1654cca0fa

S - Software/0 - HSB MRTS Kathode-MCP/3 - Implementation/0 - Code/Platform/src/spiDevice.c

@@ -0,0 +1,160 @@
+// -----------------------------------------------------------------------------
+/// @file  spiDevice.c
+/// @brief Description
+// -----------------------------------------------------------------------------
+//  Micro-Key bv
+//  Industrieweg 28, 9804 TG Noordhorn
+//  Postbus 92, 9800 AB Zuidhorn
+//  The Netherlands
+//  Tel: +31 594 503020
+//  Fax: +31 594 505825
+//  Email: support@microkey.nl
+//  Web: www.microkey.nl
+// -----------------------------------------------------------------------------
+/// $Revision$
+/// $Author$
+/// $Date$
+//  (c) 2017 Micro-Key bv
+// -----------------------------------------------------------------------------
+
+/// @file spiDevice.c
+/// @ingroup {group_name}
+
+
+// -----------------------------------------------------------------------------
+// Include files
+// -----------------------------------------------------------------------------
+
+#include <stdio.h>
+#include "stm32f10x.h"
+
+#include "spiDevice.h"
+
+// -----------------------------------------------------------------------------
+// Constant and macro definitions
+// -----------------------------------------------------------------------------
+
+
+
+// -----------------------------------------------------------------------------
+// Type definitions
+// -----------------------------------------------------------------------------
+
+
+// -----------------------------------------------------------------------------
+// File-scope variables
+// -----------------------------------------------------------------------------
+
+
+
+// -----------------------------------------------------------------------------
+// Function declarations
+// -----------------------------------------------------------------------------
+
+static ErrorStatus write(const struct IODevice* self, const char* buffer, size_t length);
+//static ErrorStatus read(const struct IODevice* self, char* buffer, size_t length, size_t* actualLength);
+
+// -----------------------------------------------------------------------------
+// Function definitions
+// -----------------------------------------------------------------------------
+
+
+ErrorStatus SpiDevice_construct(struct SpiDevice* self, struct Spi* spi, const struct SpiParameters* parameters, T_PL_GPIO SPI_CE)
+{
+   ErrorStatus returnValue = SUCCESS;
+
+   IODevice_construct(&self->device, NULL, write);
+
+   SPI_construct(self->spi, parameters);
+
+   return returnValue;
+}
+
+
+static ErrorStatus write(const struct IODevice* self, const char* buffer, size_t length)
+{
+   return SpiDevice_write((const struct SpiDevice*)self, buffer, length);
+}
+
+ErrorStatus SpiDevice_write (const struct SpiDevice* self, const char* buffer, int length)
+{
+   struct spiQueueItem txItem;
+   ErrorStatus returnValue = SUCCESS;           //! Define return variable
+   int txCounter;                               //! Define a loop counter var
+
+
+   xSemaphoreTake(self->spi->spiClaimed, portMAX_DELAY);
+   self->spi->SPI_CE = &self->SPI_CE;
+
+
+  //! Copy the incoming data into SPI data structure
+  for (txCounter = 0; txCounter < length; txCounter++)
+  {
+     txItem.byte = buffer[txCounter];     //! Copy current data in struct
+     if (uxQueueSpacesAvailable(self->spi->txQueue) == 2)
+     {
+        // Prevent locking in case that more data than queue-space should be send
+        if (self->spi->SPI_InitStruct.SPI_NSS == SPI_NSS_Soft)
+        {
+           GPIO_ResetBits(self->spi->SPI_CE->GPIO_Typedef, self->spi->SPI_CE->GPIO_InitStruct.GPIO_Pin);
+        }
+        SPI_I2S_ITConfig(self->spi->SPI_TypeDef, SPI_I2S_IT_TXE, ENABLE);
+     }
+    //! Add the current set of data to SPI transmission queue
+    if (pdTRUE != xQueueSend(self->spi->txQueue, &txItem, portMAX_DELAY ))
+    {
+      //! Adding item was NOT successful - break out of loop
+       returnValue = ERROR;                    //! Set return value to FALSE
+      break;
+    }
+  }
+
+  if (returnValue == SUCCESS)
+  {
+     // De-select the current device to avoid start-issues
+     if (self->spi->SPI_InitStruct.SPI_NSS == SPI_NSS_Soft)
+     {
+        GPIO_ResetBits(self->spi->SPI_CE->GPIO_Typedef, self->spi->SPI_CE->GPIO_InitStruct.GPIO_Pin);
+     }
+     SPI_I2S_ITConfig(self->spi->SPI_TypeDef, SPI_I2S_IT_TXE, ENABLE);
+
+    //! Try to take Semaphore - If the USART transmission is still busy, the
+    //! Semaphore cannot be taken - FREERTOS will suspend this task until the
+    //! Semaphore is released again
+    xSemaphoreTake(self->spi->txSemaphore, portMAX_DELAY);
+
+    /** Enabling the TX interrupt will immediately cause an interrupt because
+     * the transmission register is still empty. The ISR will get the data
+     * from the uart transmission queue and transmit byte-wise until the
+     * queue is empty.
+     * An empty queue will cause the transmission complete flag (TC) to be set,
+     * which is polled
+     */
+    while (SPI_I2S_GetFlagStatus(self->spi->SPI_TypeDef, SPI_I2S_FLAG_BSY) == SET)
+    {
+      //! The software must wait until TXE=1. The TXE flag remains cleared during
+      //! all data transfers and it is set by hardware at the last frame's
+      //! end of transmission
+    }
+    if (self->spi->SPI_InitStruct.SPI_NSS == SPI_NSS_Soft)
+    {
+       GPIO_SetBits(self->spi->SPI_CE->GPIO_Typedef, self->spi->SPI_CE->GPIO_InitStruct.GPIO_Pin);
+    }
+    xSemaphoreGive(self->spi->spiClaimed);
+  }
+//  else
+  {
+    //! Do nothing
+  }
+
+
+  return returnValue;                          //! Return result to caller
+}
+
+
+ErrorStatus SpiDevice_read(const struct SpiDevice* self, char* buffer, size_t length, size_t* actualLength)
+{
+   ErrorStatus returnValue = SUCCESS;
+
+   return returnValue;
+}