Diff: donotenter/RpcServer/StringInOut.cpp

Revision:

3:36de8b9e4b1a

Parent:

0:832122ce6748

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/donotenter/RpcServer/StringInOut.cpp	Sat Apr 10 03:05:42 2021 +0000
@@ -0,0 +1,180 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * 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 MAXIM INTEGRATED 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.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+#include "mbed.h"
+#include "USBSerial.h"
+#include "RpcFifo.h"
+#include "RpcServer.h"
+#include "StringInOut.h"
+#include "Peripherals.h"
+
+/// a running index that keeps track of where an incoming string has been
+/// buffered to
+static int lineBuffer_index = 0;
+/// a flag that keeps track of the state of accumulating a string
+static int getLine_State = GETLINE_WAITING;
+
+extern USBSerial *usbSerialPtr;
+
+/**
+* @brief Place incoming USB characters into a fifo
+* @param data_IN buffer of characters
+* @param len length of data
+*/
+int fifoIncomingChars(uint8_t data_IN[], unsigned int len) {
+  unsigned int i;
+  for (i = 0; i < len; i++) {
+    fifo_put8(GetUSBIncomingFifo(), data_IN[i]);
+  }
+  return 0;
+}
+
+/**
+* @brief Check the USB incoming fifo to see if there is data to be read
+* @return 1 if there is data to be read, 0 if data is not available
+*/
+int isReadReady(void) {
+  if (fifo_empty(GetUSBIncomingFifo()) == 0)
+    return 1;
+  return 0;
+}
+
+/**
+* @brief Clear the incoming USB read fifo
+*/
+void clearOutReadFifo(void) { fifo_clear(GetUSBIncomingFifo()); }
+
+/**
+* @brief Block until a character can be read from the USB
+* @return the character read
+*/
+char getch(void) {
+  uint8_t ch;
+  // block until char is ready
+  while (isReadReady() == 0) {
+  }
+  // read a char from buffer
+  fifo_get8(GetUSBIncomingFifo(), &ch);
+  return ch;
+}
+
+/**
+* @brief Place incoming USB characters into a fifo
+* @param lineBuffer buffer to place the incoming characters
+* @param bufferLength length of buffer
+* @return GETLINE_WAITING if still waiting for a CRLF, GETLINE_DONE
+*/
+int getLine(char *lineBuffer, int bufferLength) {
+  uint8_t ch;
+
+  //USBSerial *serial = Peripherals::usbSerial();
+  if (getLine_State == GETLINE_DONE) {
+    getLine_State = GETLINE_WAITING;
+  }
+  if (usbSerialPtr->available() != 0) {
+    ch = usbSerialPtr->_getc();
+    if (ch != 0x0A && ch != 0x0D) {
+      lineBuffer[lineBuffer_index++] = ch;
+    }
+    if (ch == 0x0D) {
+      lineBuffer[lineBuffer_index++] = 0;
+      lineBuffer_index = 0;
+      getLine_State = GETLINE_DONE;
+    }
+    if (lineBuffer_index > bufferLength) {
+      lineBuffer[bufferLength - 1] = 0;
+      getLine_State = GETLINE_DONE;
+    }
+  }
+  return getLine_State;
+}
+
+/**
+* @brief Block until a fixed number of characters has been accumulated from the
+* incoming USB
+* @param lineBuffer buffer to place the incoming characters
+* @param maxLength length of buffer
+*/
+void getStringFixedLength(uint8_t *lineBuffer, int maxLength) {
+  uint8_t ch;
+  int index = 0;
+  // block until maxLength is captured
+  while (1) {
+    ch = getch();
+    lineBuffer[index++] = ch;
+    if (index == maxLength)
+      return;
+  }
+}
+
+/**
+* @brief Outut an array of bytes out the USB serial port
+* @param data buffer to output
+* @param length length of buffer
+*/
+int putBytes(uint8_t *data, uint32_t length) {
+  int sent;
+  int send;
+  bool status;
+  uint8_t *ptr;
+  ptr = data;
+  //
+  // break up the string into chunks
+  //
+  sent = 0;
+  do { 
+    send = MAX_PACKET_SIZE_EPBULK;
+    if ((sent + MAX_PACKET_SIZE_EPBULK) > (int)length) {
+      send = length - sent;
+    }
+    status = usbSerialPtr->writeBlock(ptr,send);
+    if (status != true) {
+      while (1) ;
+    }
+    sent += send;
+    ptr += send;
+  } while (sent < (int)length);
+  return 0;
+}
+
+/**
+* @brief Output a string out the USB serial port
+* @param str to output
+*/
+int putStr(const char *str) {
+  int length;
+  uint8_t *ptr;
+  ptr = (uint8_t *)str;
+  length = strlen(str);
+  putBytes(ptr, length);
+  return 0;
+}