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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,174 @@ | ||
| /* | ||
| * Copyright (C) 2009-2017 by Jonathan Naylor G4KLX | ||
| * Copyright (C) 2016 by Colin Durbridge G4EML | ||
| * Copyright (C) 2017 by Andy Uribe CA6JAU | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| #include "Config.h" | ||
| #include "Globals.h" | ||
| #include "CWIdTX.h" | ||
|
|
||
| // 4FSK symbol sequence (800 Hz "tone" at 4800 baud): +1 +3 +1 -1 -3 -1 | ||
| // Bit sequence: 00 01 00 10 11 10 | ||
| uint8_t TONE[] = {0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0}; | ||
|
|
||
| uint8_t SILENCE[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; | ||
|
|
||
| const uint8_t CYCLE_LENGTH = 12U; | ||
|
|
||
| const uint8_t DOT_LENGTH = 40U; | ||
|
|
||
| const struct { | ||
| uint8_t c; | ||
| uint32_t pattern; | ||
| uint8_t length; | ||
| } SYMBOL_LIST[] = { | ||
| {'A', 0xB8000000U, 8U}, | ||
| {'B', 0xEA800000U, 12U}, | ||
| {'C', 0xEBA00000U, 14U}, | ||
| {'D', 0xEA000000U, 10U}, | ||
| {'E', 0x80000000U, 4U}, | ||
| {'F', 0xAE800000U, 12U}, | ||
| {'G', 0xEE800000U, 12U}, | ||
| {'H', 0xAA000000U, 10U}, | ||
| {'I', 0xA0000000U, 6U}, | ||
| {'J', 0xBBB80000U, 16U}, | ||
| {'K', 0xEB800000U, 12U}, | ||
| {'L', 0xBA800000U, 12U}, | ||
| {'M', 0xEE000000U, 10U}, | ||
| {'N', 0xE8000000U, 8U}, | ||
| {'O', 0xEEE00000U, 14U}, | ||
| {'P', 0xBBA00000U, 14U}, | ||
| {'Q', 0xEEB80000U, 16U}, | ||
| {'R', 0xBA000000U, 10U}, | ||
| {'S', 0xA8000000U, 8U}, | ||
| {'T', 0xE0000000U, 6U}, | ||
| {'U', 0xAE000000U, 10U}, | ||
| {'V', 0xAB800000U, 12U}, | ||
| {'W', 0xBB800000U, 12U}, | ||
| {'X', 0xEAE00000U, 14U}, | ||
| {'Y', 0xEBB80000U, 16U}, | ||
| {'Z', 0xEEA00000U, 14U}, | ||
| {'1', 0xBBBB8000U, 20U}, | ||
| {'2', 0xAEEE0000U, 18U}, | ||
| {'3', 0xABB80000U, 16U}, | ||
| {'4', 0xAAE00000U, 14U}, | ||
| {'5', 0xAA800000U, 12U}, | ||
| {'6', 0xEAA00000U, 14U}, | ||
| {'7', 0xEEA80000U, 16U}, | ||
| {'8', 0xEEEA0000U, 18U}, | ||
| {'9', 0xEEEE8000U, 20U}, | ||
| {'0', 0xEEEEE000U, 22U}, | ||
| {'/', 0xEAE80000U, 16U}, | ||
| {'?', 0xAEEA0000U, 18U}, | ||
| {',', 0xEEAEE000U, 22U}, | ||
| {'-', 0xEAAE0000U, 18U}, | ||
| {'=', 0xEAB80000U, 16U}, | ||
| {' ', 0x00000000U, 4U}, | ||
| {0U, 0x00000000U, 0U} | ||
| }; | ||
|
|
||
| const uint8_t BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U}; | ||
|
|
||
| #define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7]) | ||
| #define READ_BIT1(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7]) | ||
|
|
||
| CCWIdTX::CCWIdTX() : | ||
| m_poBuffer(), | ||
| m_poLen(0U), | ||
| m_poPtr(0U), | ||
| m_n(0U) | ||
| { | ||
| } | ||
|
|
||
| void CCWIdTX::process() | ||
| { | ||
| if (m_poLen == 0U) | ||
| return; | ||
|
|
||
| uint16_t space = io.getSpace(); | ||
|
|
||
| while (space > CYCLE_LENGTH) { | ||
| bool b = READ_BIT1(m_poBuffer, m_poPtr); | ||
| if (b) | ||
| io.write(TONE, CYCLE_LENGTH); | ||
| else | ||
| io.write(SILENCE, CYCLE_LENGTH); | ||
|
|
||
| space -= CYCLE_LENGTH; | ||
|
|
||
| m_n++; | ||
| if (m_n >= DOT_LENGTH) { | ||
| m_poPtr++; | ||
| m_n = 0U; | ||
| } | ||
|
|
||
| if (m_poPtr >= m_poLen) { | ||
| m_poPtr = 0U; | ||
| m_poLen = 0U; | ||
| return; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| uint8_t CCWIdTX::write(const uint8_t* data, uint8_t length) | ||
| { | ||
| ::memset(m_poBuffer, 0x00U, 300U * sizeof(uint8_t)); | ||
|
|
||
| m_poLen = 8U; | ||
| m_poPtr = 0U; | ||
| m_n = 0U; | ||
|
|
||
| for (uint8_t i = 0U; i < length; i++) { | ||
| for (uint8_t j = 0U; SYMBOL_LIST[j].c != 0U; j++) { | ||
| if (SYMBOL_LIST[j].c == data[i]) { | ||
| uint32_t MASK = 0x80000000U; | ||
| for (uint8_t k = 0U; k < SYMBOL_LIST[j].length; k++, m_poLen++, MASK >>= 1) { | ||
| bool b = (SYMBOL_LIST[j].pattern & MASK) == MASK; | ||
| WRITE_BIT1(m_poBuffer, m_poLen, b); | ||
|
|
||
| if (m_poLen >= 295U) { | ||
| m_poLen = 0U; | ||
| return 4U; | ||
| } | ||
| } | ||
|
|
||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // An empty message | ||
| if (m_poLen == 8U) { | ||
| m_poLen = 0U; | ||
| return 4U; | ||
| } | ||
|
|
||
| m_poLen += 5U; | ||
|
|
||
| DEBUG2("Message created with length", m_poLen); | ||
|
|
||
| return 0U; | ||
| } | ||
|
|
||
| void CCWIdTX::reset() | ||
| { | ||
| m_poLen = 0U; | ||
| m_poPtr = 0U; | ||
| m_n = 0U; | ||
| } | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| /* | ||
| * Copyright (C) 2009-2015 by Jonathan Naylor G4KLX | ||
| * Copyright (C) 2016 by Colin Durbridge G4EML | ||
| * Copyright (C) 2017 by Andy Uribe CA6JAU | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 2 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| #if !defined(CWIDTX_H) | ||
| #define CWIDTX_H | ||
|
|
||
| #include "Config.h" | ||
|
|
||
| class CCWIdTX { | ||
| public: | ||
| CCWIdTX(); | ||
|
|
||
| void process(); | ||
|
|
||
| uint8_t write(const uint8_t* data, uint8_t length); | ||
|
|
||
| void reset(); | ||
|
|
||
| private: | ||
| uint8_t m_poBuffer[300U]; | ||
| uint16_t m_poLen; | ||
| uint16_t m_poPtr; | ||
| uint8_t m_n; | ||
| }; | ||
|
|
||
| #endif | ||
|
|
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