Sebastián Pastor / EtheriosCloudConnector

Etherios Cloud Connector very first porting for mbed. Tested in an LPC1768

Etherios Cloud Connector for Embedded v2.1.0.3 library for mbed. Early porting.

This port is centered mainly in the platform code. So it should work properly with the provided examples of send_data, device_request, data_points, RCI and firmware_update (stub implementation, not a real one... yet ;-)). Filesystem is not implemented yet, and some examples might need changes.

To run, it needs the following libraries: - mbed - mbed-rtos - EthernetInterface

Find more information (and the source code!) about Etherios Cloud Connector for Embedded here: http://www.etherios.com/products/devicecloud/support/connector and in: http://www.etherios.com

private/connector_sm_utils.h@0:1c358ea10753, 2013-12-03 (annotated)

Committer:
spastor
Date:
Tue Dec 03 13:34:02 2013 +0000
Revision:
0:1c358ea10753
First commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
spastor 0:1c358ea10753 1 /*
spastor 0:1c358ea10753 2 * Copyright (c) 2013 Digi International Inc.,
spastor 0:1c358ea10753 3 * All rights not expressly granted are reserved.
spastor 0:1c358ea10753 4 *
spastor 0:1c358ea10753 5 * This Source Code Form is subject to the terms of the Mozilla Public
spastor 0:1c358ea10753 6 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
spastor 0:1c358ea10753 7 * You can obtain one at http://mozilla.org/MPL/2.0/.
spastor 0:1c358ea10753 8 *
spastor 0:1c358ea10753 9 * Digi International Inc. 11001 Bren Road East, Minnetonka, MN 55343
spastor 0:1c358ea10753 10 * =======================================================================
spastor 0:1c358ea10753 11 */
spastor 0:1c358ea10753 12
spastor 0:1c358ea10753 13 static uint16_t const crc_table[] =
spastor 0:1c358ea10753 14 {
spastor 0:1c358ea10753 15 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,
spastor 0:1c358ea10753 16 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,
spastor 0:1c358ea10753 17 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,
spastor 0:1c358ea10753 18 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,
spastor 0:1c358ea10753 19 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,
spastor 0:1c358ea10753 20 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,
spastor 0:1c358ea10753 21 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,
spastor 0:1c358ea10753 22 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,
spastor 0:1c358ea10753 23 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,
spastor 0:1c358ea10753 24 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,
spastor 0:1c358ea10753 25 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,
spastor 0:1c358ea10753 26 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,
spastor 0:1c358ea10753 27 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,
spastor 0:1c358ea10753 28 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,
spastor 0:1c358ea10753 29 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,
spastor 0:1c358ea10753 30 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,
spastor 0:1c358ea10753 31 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,
spastor 0:1c358ea10753 32 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,
spastor 0:1c358ea10753 33 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,
spastor 0:1c358ea10753 34 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,
spastor 0:1c358ea10753 35 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,
spastor 0:1c358ea10753 36 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,
spastor 0:1c358ea10753 37 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,
spastor 0:1c358ea10753 38 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,
spastor 0:1c358ea10753 39 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,
spastor 0:1c358ea10753 40 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,
spastor 0:1c358ea10753 41 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,
spastor 0:1c358ea10753 42 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,
spastor 0:1c358ea10753 43 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,
spastor 0:1c358ea10753 44 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,
spastor 0:1c358ea10753 45 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,
spastor 0:1c358ea10753 46 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040
spastor 0:1c358ea10753 47 };
spastor 0:1c358ea10753 48
spastor 0:1c358ea10753 49 #define SmCRC16(crcval, newchar) crcval = ((crcval) >> 8) ^ crc_table[((crcval) ^ (newchar)) & 0x00ff]
spastor 0:1c358ea10753 50
spastor 0:1c358ea10753 51 static uint16_t sm_calculate_crc16(uint16_t crc, uint8_t const * const data, size_t const bytes)
spastor 0:1c358ea10753 52 {
spastor 0:1c358ea10753 53 size_t i;
spastor 0:1c358ea10753 54
spastor 0:1c358ea10753 55 for (i = 0; i < bytes; i++)
spastor 0:1c358ea10753 56 SmCRC16(crc, data[i]);
spastor 0:1c358ea10753 57
spastor 0:1c358ea10753 58 return crc;
spastor 0:1c358ea10753 59 }
spastor 0:1c358ea10753 60
spastor 0:1c358ea10753 61 #if (defined CONNECTOR_TRANSPORT_SMS)
spastor 0:1c358ea10753 62 /* Base85 encoding lookup table. */
spastor 0:1c358ea10753 63 static uint8_t const encode85_table[] =
spastor 0:1c358ea10753 64 {
spastor 0:1c358ea10753 65 '!', '\"', '#', '$', '%', '&', '\'', '(', ')', '*',
spastor 0:1c358ea10753 66 '+', ',', '-', '.', '/', '0', '1', '2', '3', '4',
spastor 0:1c358ea10753 67 '5', '6', '7', '8', '9', ':', ';', '<', '=', '>',
spastor 0:1c358ea10753 68 '?', '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
spastor 0:1c358ea10753 69 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
spastor 0:1c358ea10753 70 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '_', 'a',
spastor 0:1c358ea10753 71 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k',
spastor 0:1c358ea10753 72 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
spastor 0:1c358ea10753 73 'v', 'w', 'x', 'y', 'z'
spastor 0:1c358ea10753 74 };
spastor 0:1c358ea10753 75
spastor 0:1c358ea10753 76 /* Base85 decoding lookup table. */
spastor 0:1c358ea10753 77 static uint8_t const decode85_table[] =
spastor 0:1c358ea10753 78 {
spastor 0:1c358ea10753 79 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 80 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6,
spastor 0:1c358ea10753 81 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26,
spastor 0:1c358ea10753 82 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46,
spastor 0:1c358ea10753 83 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 0, 0, 0, 0, 58, 0, 59, 60, 61,
spastor 0:1c358ea10753 84 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81,
spastor 0:1c358ea10753 85 82, 83, 84, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 86 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 87 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 88 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 89 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 90 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
spastor 0:1c358ea10753 91 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
spastor 0:1c358ea10753 92 };
spastor 0:1c358ea10753 93
spastor 0:1c358ea10753 94
spastor 0:1c358ea10753 95 static unsigned long const pow85[] =
spastor 0:1c358ea10753 96 {
spastor 0:1c358ea10753 97 85*85*85*85, 85*85*85, 85*85, 85, 1
spastor 0:1c358ea10753 98 };
spastor 0:1c358ea10753 99
spastor 0:1c358ea10753 100 static int sm_encode85(uint8_t * dest, size_t dest_len, uint8_t const * const src, size_t const src_len)
spastor 0:1c358ea10753 101 {
spastor 0:1c358ea10753 102 uint8_t buf[5];
spastor 0:1c358ea10753 103 uint32_t tuple = 0;
spastor 0:1c358ea10753 104 size_t src_count = 0;
spastor 0:1c358ea10753 105 size_t dest_count = 0;
spastor 0:1c358ea10753 106 size_t count = 0;
spastor 0:1c358ea10753 107 size_t i;
spastor 0:1c358ea10753 108 unsigned char *s;
spastor 0:1c358ea10753 109
spastor 0:1c358ea10753 110 while (src_count < src_len)
spastor 0:1c358ea10753 111 {
spastor 0:1c358ea10753 112 unsigned const c = (*(src + src_count)) & 0xFF;
spastor 0:1c358ea10753 113
spastor 0:1c358ea10753 114 switch (count++) {
spastor 0:1c358ea10753 115 case 0:
spastor 0:1c358ea10753 116 tuple |= (c << 24);
spastor 0:1c358ea10753 117 break;
spastor 0:1c358ea10753 118 case 1:
spastor 0:1c358ea10753 119 tuple |= (c << 16);
spastor 0:1c358ea10753 120 break;
spastor 0:1c358ea10753 121 case 2:
spastor 0:1c358ea10753 122 tuple |= (c << 8);
spastor 0:1c358ea10753 123 break;
spastor 0:1c358ea10753 124 case 3:
spastor 0:1c358ea10753 125 tuple |= c;
spastor 0:1c358ea10753 126 i = 5;
spastor 0:1c358ea10753 127 s = buf;
spastor 0:1c358ea10753 128 do {
spastor 0:1c358ea10753 129 *s++ = tuple % 85;
spastor 0:1c358ea10753 130 tuple /= 85;
spastor 0:1c358ea10753 131 } while (--i > 0);
spastor 0:1c358ea10753 132 i = count;
spastor 0:1c358ea10753 133 do {
spastor 0:1c358ea10753 134 *dest++ = encode85_table[*--s];
spastor 0:1c358ea10753 135 dest_count++;
spastor 0:1c358ea10753 136 if (dest_count >= dest_len) {
spastor 0:1c358ea10753 137 return dest_count;
spastor 0:1c358ea10753 138 }
spastor 0:1c358ea10753 139 } while (i-- > 0);
spastor 0:1c358ea10753 140
spastor 0:1c358ea10753 141 tuple = 0;
spastor 0:1c358ea10753 142 count = 0;
spastor 0:1c358ea10753 143 break;
spastor 0:1c358ea10753 144 }
spastor 0:1c358ea10753 145 src_count++;
spastor 0:1c358ea10753 146 }
spastor 0:1c358ea10753 147
spastor 0:1c358ea10753 148 /* Cleanup any remaining bytes... */
spastor 0:1c358ea10753 149 if (count > 0) {
spastor 0:1c358ea10753 150 i = 5;
spastor 0:1c358ea10753 151 s = buf;
spastor 0:1c358ea10753 152 do {
spastor 0:1c358ea10753 153 *s++ = tuple % 85;
spastor 0:1c358ea10753 154 tuple /= 85;
spastor 0:1c358ea10753 155 } while (--i > 0);
spastor 0:1c358ea10753 156 i = count;
spastor 0:1c358ea10753 157 do {
spastor 0:1c358ea10753 158 *dest++ = encode85_table[*--s];
spastor 0:1c358ea10753 159 dest_count++;
spastor 0:1c358ea10753 160 if (dest_count >= dest_len) {
spastor 0:1c358ea10753 161 return dest_count;
spastor 0:1c358ea10753 162 }
spastor 0:1c358ea10753 163 } while (i-- > 0);
spastor 0:1c358ea10753 164 }
spastor 0:1c358ea10753 165
spastor 0:1c358ea10753 166 return dest_count;
spastor 0:1c358ea10753 167 }
spastor 0:1c358ea10753 168
spastor 0:1c358ea10753 169 static int sm_decode85(uint8_t * dest, size_t dest_len, uint8_t const * const src, size_t const src_len)
spastor 0:1c358ea10753 170 {
spastor 0:1c358ea10753 171 unsigned long tuple = 0;
spastor 0:1c358ea10753 172 int c;
spastor 0:1c358ea10753 173 size_t count = 0;
spastor 0:1c358ea10753 174 size_t src_count = 0;
spastor 0:1c358ea10753 175 size_t dest_count = 0;
spastor 0:1c358ea10753 176
spastor 0:1c358ea10753 177 ASSERT_GOTO(dest_len >= (src_len * 4)/5, error);
spastor 0:1c358ea10753 178 while (src_count < src_len) {
spastor 0:1c358ea10753 179 c = (*(src + src_count)) & 0xFF;
spastor 0:1c358ea10753 180 tuple += decode85_table[c] * pow85[count++];
spastor 0:1c358ea10753 181 if (count == 5) {
spastor 0:1c358ea10753 182 *dest++ = tuple >> 24;
spastor 0:1c358ea10753 183 *dest++ = tuple >> 16;
spastor 0:1c358ea10753 184 *dest++ = tuple >> 8;
spastor 0:1c358ea10753 185 *dest++ = tuple;
spastor 0:1c358ea10753 186 dest_count += 4;
spastor 0:1c358ea10753 187 count = 0;
spastor 0:1c358ea10753 188 tuple = 0;
spastor 0:1c358ea10753 189 }
spastor 0:1c358ea10753 190 src_count++;
spastor 0:1c358ea10753 191 }
spastor 0:1c358ea10753 192
spastor 0:1c358ea10753 193 /* Cleanup any remaining bytes... */
spastor 0:1c358ea10753 194 if (count > 0) {
spastor 0:1c358ea10753 195 count--;
spastor 0:1c358ea10753 196 tuple += pow85[count];
spastor 0:1c358ea10753 197
spastor 0:1c358ea10753 198 switch (count) {
spastor 0:1c358ea10753 199 case 4:
spastor 0:1c358ea10753 200 *dest++ = tuple >> 24;
spastor 0:1c358ea10753 201 *dest++ = tuple >> 16;
spastor 0:1c358ea10753 202 *dest++ = tuple >> 8;
spastor 0:1c358ea10753 203 *dest++ = tuple;
spastor 0:1c358ea10753 204 dest_count += 4;
spastor 0:1c358ea10753 205 break;
spastor 0:1c358ea10753 206 case 3:
spastor 0:1c358ea10753 207 *dest++ = tuple >> 24;
spastor 0:1c358ea10753 208 *dest++ = tuple >> 16;
spastor 0:1c358ea10753 209 *dest++ = tuple >> 8;
spastor 0:1c358ea10753 210 dest_count += 3;
spastor 0:1c358ea10753 211 break;
spastor 0:1c358ea10753 212 case 2:
spastor 0:1c358ea10753 213 *dest++ = tuple >> 24;
spastor 0:1c358ea10753 214 *dest++ = tuple >> 16;
spastor 0:1c358ea10753 215 dest_count += 2;
spastor 0:1c358ea10753 216 break;
spastor 0:1c358ea10753 217 case 1:
spastor 0:1c358ea10753 218 *dest++ = tuple >> 24;
spastor 0:1c358ea10753 219 dest_count++;;
spastor 0:1c358ea10753 220 break;
spastor 0:1c358ea10753 221 }
spastor 0:1c358ea10753 222 }
spastor 0:1c358ea10753 223
spastor 0:1c358ea10753 224 error:
spastor 0:1c358ea10753 225 return dest_count;
spastor 0:1c358ea10753 226 }
spastor 0:1c358ea10753 227 #endif