58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
*
|
|
* Based on Sprinter and grbl.
|
|
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
|
|
*
|
|
* 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef __PRIVATE_SPI_H__
|
|
#define __PRIVATE_SPI_H__
|
|
|
|
#include <stdint.h>
|
|
#include "softspi.h"
|
|
|
|
template<uint8_t MisoPin, uint8_t MosiPin, uint8_t SckPin>
|
|
class SPI {
|
|
static SoftSPI<MisoPin, MosiPin, SckPin> softSPI;
|
|
public:
|
|
FORCE_INLINE static void init() { softSPI.begin(); }
|
|
FORCE_INLINE static void send(uint8_t data) { softSPI.send(data); }
|
|
FORCE_INLINE static uint8_t receive() { return softSPI.receive(); }
|
|
};
|
|
|
|
|
|
// Hardware SPI
|
|
template<>
|
|
class SPI<MISO_PIN, MOSI_PIN, SCK_PIN> {
|
|
public:
|
|
FORCE_INLINE static void init() {
|
|
OUT_WRITE(SCK_PIN, LOW);
|
|
OUT_WRITE(MOSI_PIN, HIGH);
|
|
SET_INPUT(MISO_PIN);
|
|
WRITE(MISO_PIN, HIGH);
|
|
}
|
|
FORCE_INLINE static uint8_t receive() {
|
|
SPDR = 0;
|
|
for (;!TEST(SPSR, SPIF););
|
|
return SPDR;
|
|
}
|
|
|
|
};
|
|
|
|
#endif // __PRIVATE_SPI_H__
|