1 files changed, 0 insertions, 180 deletions
diff --git a/drivers/avr/spi_master.c b/drivers/avr/spi_master.c
deleted file mode 100644
index 4e8fd3bcdf..0000000000
--- a/drivers/avr/spi_master.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*  Copyright 2020
- *
- *  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 <https://www.gnu.org/licenses/>.
- */
-
-#include "spi_master.h"
-
-#include "timer.h"
-
-#if defined(__AVR_AT90USB162__) || defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
-#    define SPI_SCK_PIN B1
-#    define SPI_MOSI_PIN B2
-#    define SPI_MISO_PIN B3
-#elif defined(__AVR_ATmega32A__)
-#    define SPI_SCK_PIN B7
-#    define SPI_MOSI_PIN B5
-#    define SPI_MISO_PIN B6
-#elif defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)
-#    define SPI_SCK_PIN B5
-#    define SPI_MOSI_PIN B3
-#    define SPI_MISO_PIN B4
-#endif
-
-#ifndef SPI_TIMEOUT
-#    define SPI_TIMEOUT 100
-#endif
-
-static pin_t   currentSlavePin    = NO_PIN;
-static uint8_t currentSlaveConfig = 0;
-static bool    currentSlave2X     = false;
-
-void spi_init(void) {
-    writePinHigh(SPI_SS_PIN);
-    setPinOutput(SPI_SCK_PIN);
-    setPinOutput(SPI_MOSI_PIN);
-    setPinInput(SPI_MISO_PIN);
-
-    SPCR = (_BV(SPE) | _BV(MSTR));
-}
-
-bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
-    if (currentSlavePin != NO_PIN || slavePin == NO_PIN) {
-        return false;
-    }
-
-    currentSlaveConfig = 0;
-
-    if (lsbFirst) {
-        currentSlaveConfig |= _BV(DORD);
-    }
-
-    switch (mode) {
-        case 1:
-            currentSlaveConfig |= _BV(CPHA);
-            break;
-        case 2:
-            currentSlaveConfig |= _BV(CPOL);
-            break;
-        case 3:
-            currentSlaveConfig |= (_BV(CPOL) | _BV(CPHA));
-            break;
-    }
-
-    uint16_t roundedDivisor = 1;
-    while (roundedDivisor < divisor) {
-        roundedDivisor <<= 1;
-    }
-
-    switch (roundedDivisor) {
-        case 16:
-            currentSlaveConfig |= _BV(SPR0);
-            break;
-        case 64:
-            currentSlaveConfig |= _BV(SPR1);
-            break;
-        case 128:
-            currentSlaveConfig |= (_BV(SPR1) | _BV(SPR0));
-            break;
-        case 2:
-            currentSlave2X = true;
-            break;
-        case 8:
-            currentSlave2X = true;
-            currentSlaveConfig |= _BV(SPR0);
-            break;
-        case 32:
-            currentSlave2X = true;
-            currentSlaveConfig |= _BV(SPR1);
-            break;
-    }
-
-    SPCR |= currentSlaveConfig;
-    if (currentSlave2X) {
-        SPSR |= _BV(SPI2X);
-    }
-    currentSlavePin = slavePin;
-    setPinOutput(currentSlavePin);
-    writePinLow(currentSlavePin);
-
-    return true;
-}
-
-spi_status_t spi_write(uint8_t data) {
-    SPDR = data;
-
-    uint16_t timeout_timer = timer_read();
-    while (!(SPSR & _BV(SPIF))) {
-        if ((timer_read() - timeout_timer) >= SPI_TIMEOUT) {
-            return SPI_STATUS_TIMEOUT;
-        }
-    }
-
-    return SPDR;
-}
-
-spi_status_t spi_read() {
-    SPDR = 0x00;  // Dummy
-
-    uint16_t timeout_timer = timer_read();
-    while (!(SPSR & _BV(SPIF))) {
-        if ((timer_read() - timeout_timer) >= SPI_TIMEOUT) {
-            return SPI_STATUS_TIMEOUT;
-        }
-    }
-
-    return SPDR;
-}
-
-spi_status_t spi_transmit(const uint8_t *data, uint16_t length) {
-    spi_status_t status;
-
-    for (uint16_t i = 0; i < length; i++) {
-        status = spi_write(data[i]);
-
-        if (status < 0) {
-            return status;
-        }
-    }
-
-    return SPI_STATUS_SUCCESS;
-}
-
-spi_status_t spi_receive(uint8_t *data, uint16_t length) {
-    spi_status_t status;
-
-    for (uint16_t i = 0; i < length; i++) {
-        status = spi_read();
-
-        if (status >= 0) {
-            data[i] = status;
-        } else {
-            return status;
-        }
-    }
-
-    return SPI_STATUS_SUCCESS;
-}
-
-void spi_stop(void) {
-    if (currentSlavePin != NO_PIN) {
-        setPinOutput(currentSlavePin);
-        writePinHigh(currentSlavePin);
-        currentSlavePin = NO_PIN;
-        SPSR &= ~(_BV(SPI2X));
-        SPCR &= ~(currentSlaveConfig);
-        currentSlaveConfig = 0;
-        currentSlave2X     = false;
-    }
-}