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gatewayTransportSend

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This commit is contained in:
Dmitry Borisenko
2022-12-01 02:10:06 +01:00
parent 2c61580157
commit cb50965c3b
293 changed files with 67232 additions and 3 deletions
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lib/MySensors/hal/architecture/AVR/drivers/DigitalIO/SoftSPI.h Normal file
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/* Arduino DigitalIO Library
* Copyright (C) 2013 by William Greiman
*
* This file is part of the Arduino DigitalIO Library
*
* This Library 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 3 of the License, or
* (at your option) any later version.
*
* This Library 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 the Arduino DigitalIO Library. If not, see
* <http://www.gnu.org/licenses/>.
*/
/**
* @file
* @brief Software SPI.
*
* @defgroup softSPI Software SPI
* @details Software SPI Template Class.
* @{
*/
#ifndef SoftSPI_h
#define SoftSPI_h
#include "DigitalPin.h"
//------------------------------------------------------------------------------
/** Nop for timing. */
#define nop asm volatile ("nop\n\t")
//------------------------------------------------------------------------------
/** Pin Mode for MISO is input.*/
#define MISO_MODE INPUT
/** Pullups disabled for MISO are disabled. */
#define MISO_LEVEL false
/** Pin Mode for MOSI is output.*/
#define MOSI_MODE OUTPUT
/** Pin Mode for SCK is output. */
#define SCK_MODE OUTPUT
//------------------------------------------------------------------------------
/**
* @class SoftSPI
* @brief Fast software SPI.
*/
template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin, uint8_t Mode = 0>
class SoftSPI
{
public:
//----------------------------------------------------------------------------
/** Initialize SoftSPI pins. */
void begin()
{
fastPinConfig(MisoPin, MISO_MODE, MISO_LEVEL);
fastPinConfig(MosiPin, MOSI_MODE, !MODE_CPHA(Mode));
fastPinConfig(SckPin, SCK_MODE, MODE_CPOL(Mode));
}
//----------------------------------------------------------------------------
/** Soft SPI receive byte.
* @return Data byte received.
*/
inline __attribute__((always_inline))
uint8_t receive()
{
uint8_t data = 0;
receiveBit(7, &data);
receiveBit(6, &data);
receiveBit(5, &data);
receiveBit(4, &data);
receiveBit(3, &data);
receiveBit(2, &data);
receiveBit(1, &data);
receiveBit(0, &data);
return data;
}
//----------------------------------------------------------------------------
/** Soft SPI send byte.
* @param[in] data Data byte to send.
*/
inline __attribute__((always_inline))
void send(uint8_t data)
{
sendBit(7, data);
sendBit(6, data);
sendBit(5, data);
sendBit(4, data);
sendBit(3, data);
sendBit(2, data);
sendBit(1, data);
sendBit(0, data);
}
//----------------------------------------------------------------------------
/** Soft SPI transfer byte.
* @param[in] txData Data byte to send.
* @return Data byte received.
*/
inline __attribute__((always_inline))
uint8_t transfer(uint8_t txData)
{
uint8_t rxData = 0;
transferBit(7, &rxData, txData);
transferBit(6, &rxData, txData);
transferBit(5, &rxData, txData);
transferBit(4, &rxData, txData);
transferBit(3, &rxData, txData);
transferBit(2, &rxData, txData);
transferBit(1, &rxData, txData);
transferBit(0, &rxData, txData);
return rxData;
}
private:
//----------------------------------------------------------------------------
inline __attribute__((always_inline))
bool MODE_CPHA(uint8_t mode)
{
return (mode & 1) != 0;
}
inline __attribute__((always_inline))
bool MODE_CPOL(uint8_t mode)
{
return (mode & 2) != 0;
}
inline __attribute__((always_inline))
void receiveBit(uint8_t bit, uint8_t* data)
{
if (MODE_CPHA(Mode)) {
fastDigitalWrite(SckPin, !MODE_CPOL(Mode));
}
nop;
nop;
fastDigitalWrite(SckPin,
MODE_CPHA(Mode) ? MODE_CPOL(Mode) : !MODE_CPOL(Mode));
if (fastDigitalRead(MisoPin)) {
*data |= 1 << bit;
}
if (!MODE_CPHA(Mode)) {
fastDigitalWrite(SckPin, MODE_CPOL(Mode));
}
}
//----------------------------------------------------------------------------
inline __attribute__((always_inline))
void sendBit(uint8_t bit, uint8_t data)
{
if (MODE_CPHA(Mode)) {
fastDigitalWrite(SckPin, !MODE_CPOL(Mode));
}
fastDigitalWrite(MosiPin, data & (1 << bit));
fastDigitalWrite(SckPin,
MODE_CPHA(Mode) ? MODE_CPOL(Mode) : !MODE_CPOL(Mode));
nop;
nop;
if (!MODE_CPHA(Mode)) {
fastDigitalWrite(SckPin, MODE_CPOL(Mode));
}
}
//----------------------------------------------------------------------------
inline __attribute__((always_inline))
void transferBit(uint8_t bit, uint8_t* rxData, uint8_t txData)
{
if (MODE_CPHA(Mode)) {
fastDigitalWrite(SckPin, !MODE_CPOL(Mode));
}
fastDigitalWrite(MosiPin, txData & (1 << bit));
fastDigitalWrite(SckPin,
MODE_CPHA(Mode) ? MODE_CPOL(Mode) : !MODE_CPOL(Mode));
if (fastDigitalRead(MisoPin)) {
*rxData |= 1 << bit;
}
if (!MODE_CPHA(Mode)) {
fastDigitalWrite(SckPin, MODE_CPOL(Mode));
}
}
//----------------------------------------------------------------------------
};
#endif // SoftSPI_h
/** @} */