Normalize all line endings

1 files changed, 228 insertions, 228 deletions

diff --git a/keyboards/deltasplit75/serial.c b/keyboards/deltasplit75/serial.c
index 898ef7d42..6faed09ce 100644
--- a/keyboards/deltasplit75/serial.c
+++ b/keyboards/deltasplit75/serial.c
@@ -1,228 +1,228 @@
-/*

- * WARNING: be careful changing this code, it is very timing dependent

- */

-

-#ifndef F_CPU

-#define F_CPU 16000000

-#endif

-

-#include <avr/io.h>

-#include <avr/interrupt.h>

-#include <util/delay.h>

-#include <stdbool.h>

-#include "serial.h"

-

-#ifdef USE_SERIAL

-

-// Serial pulse period in microseconds. Its probably a bad idea to lower this

-// value.

-#define SERIAL_DELAY 24

-

-uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};

-uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};

-

-#define SLAVE_DATA_CORRUPT (1<<0)

-volatile uint8_t status = 0;

-

-inline static

-void serial_delay(void) {

-  _delay_us(SERIAL_DELAY);

-}

-

-inline static

-void serial_output(void) {

-  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;

-}

-

-// make the serial pin an input with pull-up resistor

-inline static

-void serial_input(void) {

-  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;

-  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;

-}

-

-inline static

-uint8_t serial_read_pin(void) {

-  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);

-}

-

-inline static

-void serial_low(void) {

-  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;

-}

-

-inline static

-void serial_high(void) {

-  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;

-}

-

-void serial_master_init(void) {

-  serial_output();

-  serial_high();

-}

-

-void serial_slave_init(void) {

-  serial_input();

-

-  // Enable INT0

-  EIMSK |= _BV(INT0);

-  // Trigger on falling edge of INT0

-  EICRA &= ~(_BV(ISC00) | _BV(ISC01));

-}

-

-// Used by the master to synchronize timing with the slave.

-static

-void sync_recv(void) {

-  serial_input();

-  // This shouldn't hang if the slave disconnects because the

-  // serial line will float to high if the slave does disconnect.

-  while (!serial_read_pin());

-  serial_delay();

-}

-

-// Used by the slave to send a synchronization signal to the master.

-static

-void sync_send(void) {

-  serial_output();

-

-  serial_low();

-  serial_delay();

-

-  serial_high();

-}

-

-// Reads a byte from the serial line

-static

-uint8_t serial_read_byte(void) {

-  uint8_t byte = 0;

-  serial_input();

-  for ( uint8_t i = 0; i < 8; ++i) {

-    byte = (byte << 1) | serial_read_pin();

-    serial_delay();

-    _delay_us(1);

-  }

-

-  return byte;

-}

-

-// Sends a byte with MSB ordering

-static

-void serial_write_byte(uint8_t data) {

-  uint8_t b = 8;

-  serial_output();

-  while( b-- ) {

-    if(data & (1 << b)) {

-      serial_high();

-    } else {

-      serial_low();

-    }

-    serial_delay();

-  }

-}

-

-// interrupt handle to be used by the slave device

-ISR(SERIAL_PIN_INTERRUPT) {

-  sync_send();

-

-  uint8_t checksum = 0;

-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {

-    serial_write_byte(serial_slave_buffer[i]);

-    sync_send();

-    checksum += serial_slave_buffer[i];

-  }

-  serial_write_byte(checksum);

-  sync_send();

-

-  // wait for the sync to finish sending

-  serial_delay();

-

-  // read the middle of pulses

-  _delay_us(SERIAL_DELAY/2);

-

-  uint8_t checksum_computed = 0;

-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {

-    serial_master_buffer[i] = serial_read_byte();

-    sync_send();

-    checksum_computed += serial_master_buffer[i];

-  }

-  uint8_t checksum_received = serial_read_byte();

-  sync_send();

-

-  serial_input(); // end transaction

-

-  if ( checksum_computed != checksum_received ) {

-    status |= SLAVE_DATA_CORRUPT;

-  } else {

-    status &= ~SLAVE_DATA_CORRUPT;

-  }

-}

-

-inline

-bool serial_slave_DATA_CORRUPT(void) {

-  return status & SLAVE_DATA_CORRUPT;

-}

-

-// Copies the serial_slave_buffer to the master and sends the

-// serial_master_buffer to the slave.

-//

-// Returns:

-// 0 => no error

-// 1 => slave did not respond

-int serial_update_buffers(void) {

-  // this code is very time dependent, so we need to disable interrupts

-  cli();

-

-  // signal to the slave that we want to start a transaction

-  serial_output();

-  serial_low();

-  _delay_us(1);

-

-  // wait for the slaves response

-  serial_input();

-  serial_high();

-  _delay_us(SERIAL_DELAY);

-

-  // check if the slave is present

-  if (serial_read_pin()) {

-    // slave failed to pull the line low, assume not present

-    sei();

-    return 1;

-  }

-

-  // if the slave is present syncronize with it

-  sync_recv();

-

-  uint8_t checksum_computed = 0;

-  // receive data from the slave

-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {

-    serial_slave_buffer[i] = serial_read_byte();

-    sync_recv();

-    checksum_computed += serial_slave_buffer[i];

-  }

-  uint8_t checksum_received = serial_read_byte();

-  sync_recv();

-

-  if (checksum_computed != checksum_received) {

-    sei();

-    return 1;

-  }

-

-  uint8_t checksum = 0;

-  // send data to the slave

-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {

-    serial_write_byte(serial_master_buffer[i]);

-    sync_recv();

-    checksum += serial_master_buffer[i];

-  }

-  serial_write_byte(checksum);

-  sync_recv();

-

-  // always, release the line when not in use

-  serial_output();

-  serial_high();

-

-  sei();

-  return 0;

-}

-

-#endif

+/*
+ * WARNING: be careful changing this code, it is very timing dependent
+ */
+
+#ifndef F_CPU
+#define F_CPU 16000000
+#endif
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdbool.h>
+#include "serial.h"
+
+#ifdef USE_SERIAL
+
+// Serial pulse period in microseconds. Its probably a bad idea to lower this
+// value.
+#define SERIAL_DELAY 24
+
+uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+
+#define SLAVE_DATA_CORRUPT (1<<0)
+volatile uint8_t status = 0;
+
+inline static
+void serial_delay(void) {
+  _delay_us(SERIAL_DELAY);
+}
+
+inline static
+void serial_output(void) {
+  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
+}
+
+// make the serial pin an input with pull-up resistor
+inline static
+void serial_input(void) {
+  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+inline static
+uint8_t serial_read_pin(void) {
+  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
+}
+
+inline static
+void serial_low(void) {
+  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_high(void) {
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+void serial_master_init(void) {
+  serial_output();
+  serial_high();
+}
+
+void serial_slave_init(void) {
+  serial_input();
+
+  // Enable INT0
+  EIMSK |= _BV(INT0);
+  // Trigger on falling edge of INT0
+  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
+}
+
+// Used by the master to synchronize timing with the slave.
+static
+void sync_recv(void) {
+  serial_input();
+  // This shouldn't hang if the slave disconnects because the
+  // serial line will float to high if the slave does disconnect.
+  while (!serial_read_pin());
+  serial_delay();
+}
+
+// Used by the slave to send a synchronization signal to the master.
+static
+void sync_send(void) {
+  serial_output();
+
+  serial_low();
+  serial_delay();
+
+  serial_high();
+}
+
+// Reads a byte from the serial line
+static
+uint8_t serial_read_byte(void) {
+  uint8_t byte = 0;
+  serial_input();
+  for ( uint8_t i = 0; i < 8; ++i) {
+    byte = (byte << 1) | serial_read_pin();
+    serial_delay();
+    _delay_us(1);
+  }
+
+  return byte;
+}
+
+// Sends a byte with MSB ordering
+static
+void serial_write_byte(uint8_t data) {
+  uint8_t b = 8;
+  serial_output();
+  while( b-- ) {
+    if(data & (1 << b)) {
+      serial_high();
+    } else {
+      serial_low();
+    }
+    serial_delay();
+  }
+}
+
+// interrupt handle to be used by the slave device
+ISR(SERIAL_PIN_INTERRUPT) {
+  sync_send();
+
+  uint8_t checksum = 0;
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_slave_buffer[i]);
+    sync_send();
+    checksum += serial_slave_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_send();
+
+  // wait for the sync to finish sending
+  serial_delay();
+
+  // read the middle of pulses
+  _delay_us(SERIAL_DELAY/2);
+
+  uint8_t checksum_computed = 0;
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_master_buffer[i] = serial_read_byte();
+    sync_send();
+    checksum_computed += serial_master_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_send();
+
+  serial_input(); // end transaction
+
+  if ( checksum_computed != checksum_received ) {
+    status |= SLAVE_DATA_CORRUPT;
+  } else {
+    status &= ~SLAVE_DATA_CORRUPT;
+  }
+}
+
+inline
+bool serial_slave_DATA_CORRUPT(void) {
+  return status & SLAVE_DATA_CORRUPT;
+}
+
+// Copies the serial_slave_buffer to the master and sends the
+// serial_master_buffer to the slave.
+//
+// Returns:
+// 0 => no error
+// 1 => slave did not respond
+int serial_update_buffers(void) {
+  // this code is very time dependent, so we need to disable interrupts
+  cli();
+
+  // signal to the slave that we want to start a transaction
+  serial_output();
+  serial_low();
+  _delay_us(1);
+
+  // wait for the slaves response
+  serial_input();
+  serial_high();
+  _delay_us(SERIAL_DELAY);
+
+  // check if the slave is present
+  if (serial_read_pin()) {
+    // slave failed to pull the line low, assume not present
+    sei();
+    return 1;
+  }
+
+  // if the slave is present syncronize with it
+  sync_recv();
+
+  uint8_t checksum_computed = 0;
+  // receive data from the slave
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_slave_buffer[i] = serial_read_byte();
+    sync_recv();
+    checksum_computed += serial_slave_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_recv();
+
+  if (checksum_computed != checksum_received) {
+    sei();
+    return 1;
+  }
+
+  uint8_t checksum = 0;
+  // send data to the slave
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_master_buffer[i]);
+    sync_recv();
+    checksum += serial_master_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_recv();
+
+  // always, release the line when not in use
+  serial_output();
+  serial_high();
+
+  sei();
+  return 0;
+}
+
+#endif