Maxim Integrated / MAX30001EVSYSKIT

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HSP/RpcServer/StringInOut.cpp@1:957e5bad16c2, 2018-06-27 (annotated)

Committer:
Emre.Eken
Date:
Wed Jun 27 14:17:34 2018 +0300
Revision:
1:957e5bad16c2
first rev

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Emre.Eken 1:957e5bad16c2 1 /*******************************************************************************
Emre.Eken 1:957e5bad16c2 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
Emre.Eken 1:957e5bad16c2 3 *
Emre.Eken 1:957e5bad16c2 4 * Permission is hereby granted, free of charge, to any person obtaining a
Emre.Eken 1:957e5bad16c2 5 * copy of this software and associated documentation files (the "Software"),
Emre.Eken 1:957e5bad16c2 6 * to deal in the Software without restriction, including without limitation
Emre.Eken 1:957e5bad16c2 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
Emre.Eken 1:957e5bad16c2 8 * and/or sell copies of the Software, and to permit persons to whom the
Emre.Eken 1:957e5bad16c2 9 * Software is furnished to do so, subject to the following conditions:
Emre.Eken 1:957e5bad16c2 10 *
Emre.Eken 1:957e5bad16c2 11 * The above copyright notice and this permission notice shall be included
Emre.Eken 1:957e5bad16c2 12 * in all copies or substantial portions of the Software.
Emre.Eken 1:957e5bad16c2 13 *
Emre.Eken 1:957e5bad16c2 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
Emre.Eken 1:957e5bad16c2 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Emre.Eken 1:957e5bad16c2 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
Emre.Eken 1:957e5bad16c2 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
Emre.Eken 1:957e5bad16c2 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
Emre.Eken 1:957e5bad16c2 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
Emre.Eken 1:957e5bad16c2 20 * OTHER DEALINGS IN THE SOFTWARE.
Emre.Eken 1:957e5bad16c2 21 *
Emre.Eken 1:957e5bad16c2 22 * Except as contained in this notice, the name of Maxim Integrated
Emre.Eken 1:957e5bad16c2 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
Emre.Eken 1:957e5bad16c2 24 * Products, Inc. Branding Policy.
Emre.Eken 1:957e5bad16c2 25 *
Emre.Eken 1:957e5bad16c2 26 * The mere transfer of this software does not imply any licenses
Emre.Eken 1:957e5bad16c2 27 * of trade secrets, proprietary technology, copyrights, patents,
Emre.Eken 1:957e5bad16c2 28 * trademarks, maskwork rights, or any other form of intellectual
Emre.Eken 1:957e5bad16c2 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
Emre.Eken 1:957e5bad16c2 30 * ownership rights.
Emre.Eken 1:957e5bad16c2 31 *******************************************************************************
Emre.Eken 1:957e5bad16c2 32 */
Emre.Eken 1:957e5bad16c2 33 #include "mbed.h"
Emre.Eken 1:957e5bad16c2 34 #include "USBSerial.h"
Emre.Eken 1:957e5bad16c2 35 #include "RpcFifo.h"
Emre.Eken 1:957e5bad16c2 36 #include "RpcServer.h"
Emre.Eken 1:957e5bad16c2 37 #include "StringInOut.h"
Emre.Eken 1:957e5bad16c2 38 #include "Peripherals.h"
Emre.Eken 1:957e5bad16c2 39
Emre.Eken 1:957e5bad16c2 40 /// a running index that keeps track of where an incoming string has been
Emre.Eken 1:957e5bad16c2 41 /// buffered to
Emre.Eken 1:957e5bad16c2 42 static int lineBuffer_index = 0;
Emre.Eken 1:957e5bad16c2 43 /// a flag that keeps track of the state of accumulating a string
Emre.Eken 1:957e5bad16c2 44 static int getLine_State = GETLINE_WAITING;
Emre.Eken 1:957e5bad16c2 45
Emre.Eken 1:957e5bad16c2 46 /**
Emre.Eken 1:957e5bad16c2 47 * @brief Place incoming USB characters into a fifo
Emre.Eken 1:957e5bad16c2 48 * @param data_IN buffer of characters
Emre.Eken 1:957e5bad16c2 49 * @param len length of data
Emre.Eken 1:957e5bad16c2 50 */
Emre.Eken 1:957e5bad16c2 51 int fifoIncomingChars(uint8_t data_IN[], unsigned int len) {
Emre.Eken 1:957e5bad16c2 52 int i;
Emre.Eken 1:957e5bad16c2 53 for (i = 0; i < len; i++) {
Emre.Eken 1:957e5bad16c2 54 fifo_put8(GetUSBIncomingFifo(), data_IN[i]);
Emre.Eken 1:957e5bad16c2 55 }
Emre.Eken 1:957e5bad16c2 56 return 0;
Emre.Eken 1:957e5bad16c2 57 }
Emre.Eken 1:957e5bad16c2 58
Emre.Eken 1:957e5bad16c2 59 /**
Emre.Eken 1:957e5bad16c2 60 * @brief Check the USB incoming fifo to see if there is data to be read
Emre.Eken 1:957e5bad16c2 61 * @return 1 if there is data to be read, 0 if data is not available
Emre.Eken 1:957e5bad16c2 62 */
Emre.Eken 1:957e5bad16c2 63 int isReadReady(void) {
Emre.Eken 1:957e5bad16c2 64 if (fifo_empty(GetUSBIncomingFifo()) == 0)
Emre.Eken 1:957e5bad16c2 65 return 1;
Emre.Eken 1:957e5bad16c2 66 return 0;
Emre.Eken 1:957e5bad16c2 67 }
Emre.Eken 1:957e5bad16c2 68
Emre.Eken 1:957e5bad16c2 69 /**
Emre.Eken 1:957e5bad16c2 70 * @brief Clear the incoming USB read fifo
Emre.Eken 1:957e5bad16c2 71 */
Emre.Eken 1:957e5bad16c2 72 void clearOutReadFifo(void) { fifo_clear(GetUSBIncomingFifo()); }
Emre.Eken 1:957e5bad16c2 73
Emre.Eken 1:957e5bad16c2 74 /**
Emre.Eken 1:957e5bad16c2 75 * @brief Block until a character can be read from the USB
Emre.Eken 1:957e5bad16c2 76 * @return the character read
Emre.Eken 1:957e5bad16c2 77 */
Emre.Eken 1:957e5bad16c2 78 char getch(void) {
Emre.Eken 1:957e5bad16c2 79 uint8_t ch;
Emre.Eken 1:957e5bad16c2 80 // block until char is ready
Emre.Eken 1:957e5bad16c2 81 while (isReadReady() == 0) {
Emre.Eken 1:957e5bad16c2 82 }
Emre.Eken 1:957e5bad16c2 83 // read a char from buffer
Emre.Eken 1:957e5bad16c2 84 fifo_get8(GetUSBIncomingFifo(), &ch);
Emre.Eken 1:957e5bad16c2 85 return ch;
Emre.Eken 1:957e5bad16c2 86 }
Emre.Eken 1:957e5bad16c2 87
Emre.Eken 1:957e5bad16c2 88 /**
Emre.Eken 1:957e5bad16c2 89 * @brief Place incoming USB characters into a fifo
Emre.Eken 1:957e5bad16c2 90 * @param lineBuffer buffer to place the incoming characters
Emre.Eken 1:957e5bad16c2 91 * @param bufferLength length of buffer
Emre.Eken 1:957e5bad16c2 92 * @return GETLINE_WAITING if still waiting for a CRLF, GETLINE_DONE
Emre.Eken 1:957e5bad16c2 93 */
Emre.Eken 1:957e5bad16c2 94 int getLine(char *lineBuffer, int bufferLength) {
Emre.Eken 1:957e5bad16c2 95 uint8_t ch;
Emre.Eken 1:957e5bad16c2 96
Emre.Eken 1:957e5bad16c2 97 USBSerial *serial = Peripherals::usbSerial();
Emre.Eken 1:957e5bad16c2 98 if (getLine_State == GETLINE_DONE) {
Emre.Eken 1:957e5bad16c2 99 getLine_State = GETLINE_WAITING;
Emre.Eken 1:957e5bad16c2 100 }
Emre.Eken 1:957e5bad16c2 101 if (serial->available() != 0) {
Emre.Eken 1:957e5bad16c2 102 ch = serial->_getc();
Emre.Eken 1:957e5bad16c2 103 if (ch != 0x0A && ch != 0x0D) {
Emre.Eken 1:957e5bad16c2 104 lineBuffer[lineBuffer_index++] = ch;
Emre.Eken 1:957e5bad16c2 105 }
Emre.Eken 1:957e5bad16c2 106 if (ch == 0x0D) {
Emre.Eken 1:957e5bad16c2 107 lineBuffer[lineBuffer_index++] = 0;
Emre.Eken 1:957e5bad16c2 108 lineBuffer_index = 0;
Emre.Eken 1:957e5bad16c2 109 getLine_State = GETLINE_DONE;
Emre.Eken 1:957e5bad16c2 110 }
Emre.Eken 1:957e5bad16c2 111 if (lineBuffer_index > bufferLength) {
Emre.Eken 1:957e5bad16c2 112 lineBuffer[bufferLength - 1] = 0;
Emre.Eken 1:957e5bad16c2 113 getLine_State = GETLINE_DONE;
Emre.Eken 1:957e5bad16c2 114 }
Emre.Eken 1:957e5bad16c2 115 }
Emre.Eken 1:957e5bad16c2 116 return getLine_State;
Emre.Eken 1:957e5bad16c2 117 }
Emre.Eken 1:957e5bad16c2 118
Emre.Eken 1:957e5bad16c2 119 /**
Emre.Eken 1:957e5bad16c2 120 * @brief Block until a fixed number of characters has been accumulated from the
Emre.Eken 1:957e5bad16c2 121 * incoming USB
Emre.Eken 1:957e5bad16c2 122 * @param lineBuffer buffer to place the incoming characters
Emre.Eken 1:957e5bad16c2 123 * @param maxLength length of buffer
Emre.Eken 1:957e5bad16c2 124 */
Emre.Eken 1:957e5bad16c2 125 void getStringFixedLength(uint8_t *lineBuffer, int maxLength) {
Emre.Eken 1:957e5bad16c2 126 uint8_t ch;
Emre.Eken 1:957e5bad16c2 127 int index = 0;
Emre.Eken 1:957e5bad16c2 128 // block until maxLength is captured
Emre.Eken 1:957e5bad16c2 129 while (1) {
Emre.Eken 1:957e5bad16c2 130 ch = getch();
Emre.Eken 1:957e5bad16c2 131 lineBuffer[index++] = ch;
Emre.Eken 1:957e5bad16c2 132 if (index == maxLength)
Emre.Eken 1:957e5bad16c2 133 return;
Emre.Eken 1:957e5bad16c2 134 }
Emre.Eken 1:957e5bad16c2 135 }
Emre.Eken 1:957e5bad16c2 136
Emre.Eken 1:957e5bad16c2 137 /**
Emre.Eken 1:957e5bad16c2 138 * @brief Output a string out the USB serial port
Emre.Eken 1:957e5bad16c2 139 * @param str output this str the USB channel
Emre.Eken 1:957e5bad16c2 140 */
Emre.Eken 1:957e5bad16c2 141 int putStr(const char *str) {
Emre.Eken 1:957e5bad16c2 142 Peripherals::usbSerial()->printf("%s", str); // fflush(stdout);
Emre.Eken 1:957e5bad16c2 143 // uint8_t *ptr;
Emre.Eken 1:957e5bad16c2 144 // uint8_t buffer[256];
Emre.Eken 1:957e5bad16c2 145 // int index = 0;
Emre.Eken 1:957e5bad16c2 146 /* int length;
Emre.Eken 1:957e5bad16c2 147 ptr = (uint8_t *)str;
Emre.Eken 1:957e5bad16c2 148 length = strlen(str);
Emre.Eken 1:957e5bad16c2 149
Emre.Eken 1:957e5bad16c2 150 Peripherals::usbSerial()->writeBlock(ptr,length); */
Emre.Eken 1:957e5bad16c2 151 return 0;
Emre.Eken 1:957e5bad16c2 152 }
Emre.Eken 1:957e5bad16c2 153
Emre.Eken 1:957e5bad16c2 154 /**
Emre.Eken 1:957e5bad16c2 155 * @brief Outut an array of bytes out the USB serial port
Emre.Eken 1:957e5bad16c2 156 * @param data buffer to output
Emre.Eken 1:957e5bad16c2 157 * @param length length of buffer
Emre.Eken 1:957e5bad16c2 158 */
Emre.Eken 1:957e5bad16c2 159 int putBytes(uint8_t *data, uint32_t length) {
Emre.Eken 1:957e5bad16c2 160 int sendThis = 64;
Emre.Eken 1:957e5bad16c2 161 int sent = 0;
Emre.Eken 1:957e5bad16c2 162 int thisLeft;
Emre.Eken 1:957e5bad16c2 163 uint8_t *ptr = data;
Emre.Eken 1:957e5bad16c2 164 if (length < 64)
Emre.Eken 1:957e5bad16c2 165 sendThis = length;
Emre.Eken 1:957e5bad16c2 166 do {
Emre.Eken 1:957e5bad16c2 167 Peripherals::usbSerial()->writeBlock(ptr, sendThis);
Emre.Eken 1:957e5bad16c2 168 sent += sendThis;
Emre.Eken 1:957e5bad16c2 169 ptr += sendThis;
Emre.Eken 1:957e5bad16c2 170 thisLeft = length - sent;
Emre.Eken 1:957e5bad16c2 171 sendThis = 64;
Emre.Eken 1:957e5bad16c2 172 if (thisLeft < 64)
Emre.Eken 1:957e5bad16c2 173 sendThis = thisLeft;
Emre.Eken 1:957e5bad16c2 174 } while (sent != length);
Emre.Eken 1:957e5bad16c2 175 return 0;
Emre.Eken 1:957e5bad16c2 176 }
Emre.Eken 1:957e5bad16c2 177
Emre.Eken 1:957e5bad16c2 178 /**
Emre.Eken 1:957e5bad16c2 179 * @brief Outut 256 byte blocks out the USB serial using writeBlock bulk
Emre.Eken 1:957e5bad16c2 180 * transfers
Emre.Eken 1:957e5bad16c2 181 * @param data buffer of blocks to output
Emre.Eken 1:957e5bad16c2 182 * @param length length of 256-byte blocks
Emre.Eken 1:957e5bad16c2 183 */
Emre.Eken 1:957e5bad16c2 184 int putBytes256Block(uint8_t *data, int numberBlocks) {
Emre.Eken 1:957e5bad16c2 185 int i;
Emre.Eken 1:957e5bad16c2 186 uint8_t *ptr;
Emre.Eken 1:957e5bad16c2 187 ptr = data;
Emre.Eken 1:957e5bad16c2 188 const int BLOCK_SIZE = 32;
Emre.Eken 1:957e5bad16c2 189 const int FLASH_PAGE_SIZE = 256;
Emre.Eken 1:957e5bad16c2 190 for (i = 0; i < numberBlocks * (FLASH_PAGE_SIZE / BLOCK_SIZE); i++) {
Emre.Eken 1:957e5bad16c2 191 Peripherals::usbSerial()->writeBlock(ptr, BLOCK_SIZE);
Emre.Eken 1:957e5bad16c2 192 ptr += BLOCK_SIZE;
Emre.Eken 1:957e5bad16c2 193 }
Emre.Eken 1:957e5bad16c2 194 return 0;
Emre.Eken 1:957e5bad16c2 195 }
Emre.Eken 1:957e5bad16c2 196