i2c-mcp4725-dac.cpp: Fix whitespace.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

1 files changed, 59 insertions, 59 deletions

diff --git a/examples/i2c-mcp4725-dac.cpp b/examples/i2c-mcp4725-dac.cpp
index e757bd1..da9a34e 100644
--- a/examples/i2c-mcp4725-dac.cpp
+++ b/examples/i2c-mcp4725-dac.cpp
@@ -41,66 +41,66 @@ static i2c_msg read_msg;
  */
 
 void mcp_i2c_setup(void) {
-  write_msg.addr = MCP_ADDR;
-  write_msg.flags = 0; // write, 7 bit address
-  write_msg.length = sizeof(write_msg_data);
-  write_msg.xferred = 0;
-  write_msg.data = write_msg_data;
-
-  read_msg.addr = MCP_ADDR;
-  read_msg.flags = I2C_MSG_READ;
-  read_msg.length = sizeof(read_msg_data);
-  read_msg.xferred = 0;
-  read_msg.data = read_msg_data;
+    write_msg.addr = MCP_ADDR;
+    write_msg.flags = 0; // write, 7 bit address
+    write_msg.length = sizeof(write_msg_data);
+    write_msg.xferred = 0;
+    write_msg.data = write_msg_data;
+
+    read_msg.addr = MCP_ADDR;
+    read_msg.flags = I2C_MSG_READ;
+    read_msg.length = sizeof(read_msg_data);
+    read_msg.xferred = 0;
+    read_msg.data = read_msg_data;
 }
 
 void mcp_write_val(uint16 val) {
-  write_msg_data[0] = MCP_WRITE_DAC | MCP_PD_NORMAL;
-  uint16 tmp = val >> 4;
-  write_msg_data[1] = tmp;
-  tmp = (val << 4) & 0x00FF;
-  write_msg_data[2] = tmp;
+    write_msg_data[0] = MCP_WRITE_DAC | MCP_PD_NORMAL;
+    uint16 tmp = val >> 4;
+    write_msg_data[1] = tmp;
+    tmp = (val << 4) & 0x00FF;
+    write_msg_data[2] = tmp;
 
-  i2c_master_xfer(I2C2, &write_msg, 1, 0);
+    i2c_master_xfer(I2C2, &write_msg, 1, 0);
 }
 
 uint16 mcp_read_val() {
-  uint16 tmp = 0;
+    uint16 tmp = 0;
 
-  i2c_master_xfer(I2C2, &read_msg, 1, 2);
+    i2c_master_xfer(I2C2, &read_msg, 1, 2);
 
-  /* We don't care about the status and EEPROM bytes (0, 3, and 4). */
-  tmp = (read_msg_data[1] << 4);
-  tmp += (read_msg_data[2] >> 4);
-  return tmp;
+    /* We don't care about the status and EEPROM bytes (0, 3, and 4). */
+    tmp = (read_msg_data[1] << 4);
+    tmp += (read_msg_data[2] >> 4);
+    return tmp;
 }
 
 int mcp_test() {
-  uint16 val;
-  uint16 test_val = 0x0101;
-
-  SerialUSB.println("Testing the MCP4725...");
-  /* Read the value of the register (should be 0x0800 if factory fresh) */
-  val = mcp_read_val();
-  SerialUSB.print("DAC Register = 0x");
-  SerialUSB.println(val, HEX);
-
-  mcp_write_val(test_val);
-  SerialUSB.print("Wrote 0x");
-  SerialUSB.print(test_val, HEX);
-  SerialUSB.println(" to the DAC");
-
-  val = mcp_read_val();
-  SerialUSB.print("DAC Register = 0x");
-  SerialUSB.println(val, HEX);
-
-  if (val != test_val) {
-    SerialUSB.println("ERROR: MCP4725 not responding correctly");
-    return 0;
-  }
+    uint16 val;
+    uint16 test_val = 0x0101;
+
+    SerialUSB.println("Testing the MCP4725...");
+    /* Read the value of the register (should be 0x0800 if factory fresh) */
+    val = mcp_read_val();
+    SerialUSB.print("DAC Register = 0x");
+    SerialUSB.println(val, HEX);
+
+    mcp_write_val(test_val);
+    SerialUSB.print("Wrote 0x");
+    SerialUSB.print(test_val, HEX);
+    SerialUSB.println(" to the DAC");
+
+    val = mcp_read_val();
+    SerialUSB.print("DAC Register = 0x");
+    SerialUSB.println(val, HEX);
+
+    if (val != test_val) {
+        SerialUSB.println("ERROR: MCP4725 not responding correctly");
+        return 0;
+    }
 
-  SerialUSB.println("MCP4725 seems to be working");
-  return 1;
+    SerialUSB.println("MCP4725 seems to be working");
+    return 1;
 }
 
 /*
@@ -108,25 +108,25 @@ int mcp_test() {
  */
 
 void setup() {
-  pinMode(BOARD_BUTTON_PIN, INPUT);
-  i2c_master_enable(I2C2, 0);
-  mcp_i2c_setup();
+    pinMode(BOARD_BUTTON_PIN, INPUT);
+    i2c_master_enable(I2C2, 0);
+    mcp_i2c_setup();
 
-  waitForButtonPress();
-  ASSERT(mcp_test());
+    waitForButtonPress();
+    ASSERT(mcp_test());
 
-  SerialUSB.println("Starting sawtooth wave");
+    SerialUSB.println("Starting sawtooth wave");
 }
 
 void loop() {
-  static uint16 dout = 0;
+    static uint16 dout = 0;
 
-  mcp_write_val(dout);
+    mcp_write_val(dout);
 
-  dout += 50;
-  if (dout >= 32768) {
-    dout = 0;
-  }
+    dout += 50;
+    if (dout >= 32768) {
+        dout = 0;
+    }
 }
 
 // -- init() and main() -------------------------------------------------------