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Commit 7ef803a9 authored by Isaac Assegai's avatar Isaac Assegai Committed by Greg Kroah-Hartman
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Staging: sm750fb: ddk750_swi2c.c: Replace spaces with tabs 

Replace spaces with tabs in ddk750_swi2c.c to
rectify the following checkpatch warnings:
WARNING: please, no spaces at the start of a line
Signed-off-by: default avatarIsaac Assegai <isaac.a.travers@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f27ece14
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Showing with 229 additions and 229 deletions
drivers/staging/sm750fb/ddk750_swi2c.c
View file @ 7ef803a9
......@@ -98,13 +98,13 @@ static void swI2CWait(void)
*/
while(peekIO(0x3ce, 0x61) & 0x10);
#else
int i, Temp;
int i, Temp;
for(i=0; i<600; i++)
{
Temp = i;
Temp += i;
}
for(i=0; i<600; i++)
{
Temp = i;
Temp += i;
}
#endif
}
......@@ -122,27 +122,27 @@ static void swI2CWait(void)
*/
void swI2CSCL(unsigned char value)
{
unsigned long ulGPIOData;
unsigned long ulGPIODirection;
ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg);
if (value) /* High */
{
/* Set direction as input. This will automatically pull the signal up. */
ulGPIODirection &= ~(1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
}
else /* Low */
{
/* Set the signal down */
ulGPIOData = PEEK32(g_i2cClkGPIODataReg);
ulGPIOData &= ~(1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataReg, ulGPIOData);
/* Set direction as output */
ulGPIODirection |= (1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
}
unsigned long ulGPIOData;
unsigned long ulGPIODirection;
ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg);
if (value) /* High */
{
/* Set direction as input. This will automatically pull the signal up. */
ulGPIODirection &= ~(1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
}
else /* Low */
{
/* Set the signal down */
ulGPIOData = PEEK32(g_i2cClkGPIODataReg);
ulGPIOData &= ~(1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataReg, ulGPIOData);
/* Set direction as output */
ulGPIODirection |= (1 << g_i2cClockGPIO);
POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
}
}
/*
......@@ -159,27 +159,27 @@ void swI2CSCL(unsigned char value)
*/
void swI2CSDA(unsigned char value)
{
unsigned long ulGPIOData;
unsigned long ulGPIODirection;
ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
if (value) /* High */
{
/* Set direction as input. This will automatically pull the signal up. */
ulGPIODirection &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
}
else /* Low */
{
/* Set the signal down */
ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
ulGPIOData &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataReg, ulGPIOData);
/* Set direction as output */
ulGPIODirection |= (1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
}
unsigned long ulGPIOData;
unsigned long ulGPIODirection;
ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
if (value) /* High */
{
/* Set direction as input. This will automatically pull the signal up. */
ulGPIODirection &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
}
else /* Low */
{
/* Set the signal down */
ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
ulGPIOData &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataReg, ulGPIOData);
/* Set direction as output */
ulGPIODirection |= (1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
}
}
/*
......@@ -190,23 +190,23 @@ void swI2CSDA(unsigned char value)
*/
static unsigned char swI2CReadSDA(void)
{
unsigned long ulGPIODirection;
unsigned long ulGPIOData;
/* Make sure that the direction is input (High) */
ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO)))
{
ulGPIODirection &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
}
/* Now read the SDA line */
ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
if (ulGPIOData & (1 << g_i2cDataGPIO))
return 1;
else
return 0;
unsigned long ulGPIODirection;
unsigned long ulGPIOData;
/* Make sure that the direction is input (High) */
ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO)))
{
ulGPIODirection &= ~(1 << g_i2cDataGPIO);
POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
}
/* Now read the SDA line */
ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
if (ulGPIOData & (1 << g_i2cDataGPIO))
return 1;
else
return 0;
}
/*
......@@ -214,7 +214,7 @@ static unsigned char swI2CReadSDA(void)
*/
static void swI2CAck(void)
{
return; /* Single byte read is ok without it. */
return; /* Single byte read is ok without it. */
}
/*
......@@ -222,10 +222,10 @@ static void swI2CAck(void)
*/
static void swI2CStart(void)
{
/* Start I2C */
swI2CSDA(1);
swI2CSCL(1);
swI2CSDA(0);
/* Start I2C */
swI2CSDA(1);
swI2CSCL(1);
swI2CSDA(0);
}
/*
......@@ -233,10 +233,10 @@ static void swI2CStart(void)
*/
static void swI2CStop(void)
{
/* Stop the I2C */
swI2CSCL(1);
swI2CSDA(0);
swI2CSDA(1);
/* Stop the I2C */
swI2CSCL(1);
swI2CSDA(0);
swI2CSDA(1);
}
/*
......@@ -251,60 +251,60 @@ static void swI2CStop(void)
*/
static long swI2CWriteByte(unsigned char data)
{
unsigned char value = data;
int i;
/* Sending the data bit by bit */
for (i=0; i<8; i++)
{
/* Set SCL to low */
swI2CSCL(0);
/* Send data bit */
if ((value & 0x80) != 0)
swI2CSDA(1);
else
swI2CSDA(0);
swI2CWait();
/* Toggle clk line to one */
swI2CSCL(1);
swI2CWait();
/* Shift byte to be sent */
value = value << 1;
}
/* Set the SCL Low and SDA High (prepare to get input) */
swI2CSCL(0);
swI2CSDA(1);
/* Set the SCL High for ack */
swI2CWait();
swI2CSCL(1);
swI2CWait();
/* Read SDA, until SDA==0 */
for(i=0; i<0xff; i++)
{
if (!swI2CReadSDA())
break;
swI2CSCL(0);
swI2CWait();
swI2CSCL(1);
swI2CWait();
}
/* Set the SCL Low and SDA High */
swI2CSCL(0);
swI2CSDA(1);
if (i<0xff)
return 0;
else
return -1;
unsigned char value = data;
int i;
/* Sending the data bit by bit */
for (i=0; i<8; i++)
{
/* Set SCL to low */
swI2CSCL(0);
/* Send data bit */
if ((value & 0x80) != 0)
swI2CSDA(1);
else
swI2CSDA(0);
swI2CWait();
/* Toggle clk line to one */
swI2CSCL(1);
swI2CWait();
/* Shift byte to be sent */
value = value << 1;
}
/* Set the SCL Low and SDA High (prepare to get input) */
swI2CSCL(0);
swI2CSDA(1);
/* Set the SCL High for ack */
swI2CWait();
swI2CSCL(1);
swI2CWait();
/* Read SDA, until SDA==0 */
for(i=0; i<0xff; i++)
{
if (!swI2CReadSDA())
break;
swI2CSCL(0);
swI2CWait();
swI2CSCL(1);
swI2CWait();
}
/* Set the SCL Low and SDA High */
swI2CSCL(0);
swI2CSDA(1);
if (i<0xff)
return 0;
else
return -1;
}
/*
......@@ -319,32 +319,32 @@ static long swI2CWriteByte(unsigned char data)
*/
static unsigned char swI2CReadByte(unsigned char ack)
{
int i;
unsigned char data = 0;
int i;
unsigned char data = 0;
for(i=7; i>=0; i--)
{
/* Set the SCL to Low and SDA to High (Input) */
swI2CSCL(0);
swI2CSDA(1);
swI2CWait();
for(i=7; i>=0; i--)
{
/* Set the SCL to Low and SDA to High (Input) */
swI2CSCL(0);
swI2CSDA(1);
swI2CWait();
/* Set the SCL High */
swI2CSCL(1);
swI2CWait();
/* Set the SCL High */
swI2CSCL(1);
swI2CWait();
/* Read data bits from SDA */
data |= (swI2CReadSDA() << i);
}
/* Read data bits from SDA */
data |= (swI2CReadSDA() << i);
}
if (ack)
swI2CAck();
if (ack)
swI2CAck();
/* Set the SCL Low and SDA High */
swI2CSCL(0);
swI2CSDA(1);
/* Set the SCL Low and SDA High */
swI2CSCL(0);
swI2CSDA(1);
return data;
return data;
}
/*
......@@ -361,29 +361,29 @@ static unsigned char swI2CReadByte(unsigned char ack)
static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
unsigned char i2cDataGPIO)
{
int i;
int i;
/* Initialize the GPIO pin for the i2c Clock Register */
g_i2cClkGPIODataReg = GPIO_DATA_SM750LE;
g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
/* Initialize the GPIO pin for the i2c Clock Register */
g_i2cClkGPIODataReg = GPIO_DATA_SM750LE;
g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
/* Initialize the Clock GPIO Offset */
g_i2cClockGPIO = i2cClkGPIO;
/* Initialize the Clock GPIO Offset */
g_i2cClockGPIO = i2cClkGPIO;
/* Initialize the GPIO pin for the i2c Data Register */
g_i2cDataGPIODataReg = GPIO_DATA_SM750LE;
g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
/* Initialize the GPIO pin for the i2c Data Register */
g_i2cDataGPIODataReg = GPIO_DATA_SM750LE;
g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
/* Initialize the Data GPIO Offset */
g_i2cDataGPIO = i2cDataGPIO;
/* Initialize the Data GPIO Offset */
g_i2cDataGPIO = i2cDataGPIO;
/* Note that SM750LE don't have GPIO MUX and power is always on */
/* Note that SM750LE don't have GPIO MUX and power is always on */
/* Clear the i2c lines. */
for(i=0; i<9; i++)
swI2CStop();
/* Clear the i2c lines. */
for(i=0; i<9; i++)
swI2CStop();
return 0;
return 0;
}
/*
......@@ -398,49 +398,49 @@ static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
* 0 - Success
*/
long swI2CInit(
unsigned char i2cClkGPIO,
unsigned char i2cDataGPIO
unsigned char i2cClkGPIO,
unsigned char i2cDataGPIO
)
{
int i;
int i;
/* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31))
return -1;
/* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31))
return -1;
if (getChipType() == SM750LE)
return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO);
if (getChipType() == SM750LE)
return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO);
/* Initialize the GPIO pin for the i2c Clock Register */
g_i2cClkGPIOMuxReg = GPIO_MUX;
g_i2cClkGPIODataReg = GPIO_DATA;
g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
/* Initialize the GPIO pin for the i2c Clock Register */
g_i2cClkGPIOMuxReg = GPIO_MUX;
g_i2cClkGPIODataReg = GPIO_DATA;
g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
/* Initialize the Clock GPIO Offset */
g_i2cClockGPIO = i2cClkGPIO;
/* Initialize the Clock GPIO Offset */
g_i2cClockGPIO = i2cClkGPIO;
/* Initialize the GPIO pin for the i2c Data Register */
g_i2cDataGPIOMuxReg = GPIO_MUX;
g_i2cDataGPIODataReg = GPIO_DATA;
g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
/* Initialize the GPIO pin for the i2c Data Register */
g_i2cDataGPIOMuxReg = GPIO_MUX;
g_i2cDataGPIODataReg = GPIO_DATA;
g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
/* Initialize the Data GPIO Offset */
g_i2cDataGPIO = i2cDataGPIO;
/* Initialize the Data GPIO Offset */
g_i2cDataGPIO = i2cDataGPIO;
/* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
POKE32(g_i2cClkGPIOMuxReg,
PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO));
POKE32(g_i2cDataGPIOMuxReg,
PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO));
/* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
POKE32(g_i2cClkGPIOMuxReg,
PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO));
POKE32(g_i2cDataGPIOMuxReg,
PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO));
/* Enable GPIO power */
enableGPIO(1);
/* Enable GPIO power */
enableGPIO(1);
/* Clear the i2c lines. */
for(i=0; i<9; i++)
swI2CStop();
/* Clear the i2c lines. */
for(i=0; i<9; i++)
swI2CStop();
return 0;
return 0;
}
/*
......@@ -455,30 +455,30 @@ long swI2CInit(
* Register value
*/
unsigned char swI2CReadReg(
unsigned char deviceAddress,
unsigned char registerIndex
unsigned char deviceAddress,
unsigned char registerIndex
)
{
unsigned char data;
unsigned char data;
/* Send the Start signal */
swI2CStart();
/* Send the Start signal */
swI2CStart();
/* Send the device address */
swI2CWriteByte(deviceAddress);
/* Send the device address */
swI2CWriteByte(deviceAddress);
/* Send the register index */
swI2CWriteByte(registerIndex);
/* Send the register index */
swI2CWriteByte(registerIndex);
/* Get the bus again and get the data from the device read address */
swI2CStart();
swI2CWriteByte(deviceAddress + 1);
data = swI2CReadByte(1);
/* Get the bus again and get the data from the device read address */
swI2CStart();
swI2CWriteByte(deviceAddress + 1);
data = swI2CReadByte(1);
/* Stop swI2C and release the bus */
swI2CStop();
/* Stop swI2C and release the bus */
swI2CStop();
return data;
return data;
}
/*
......@@ -495,28 +495,28 @@ unsigned char swI2CReadReg(
* -1 - Fail
*/
long swI2CWriteReg(
unsigned char deviceAddress,
unsigned char registerIndex,
unsigned char data
unsigned char deviceAddress,
unsigned char registerIndex,
unsigned char data
)
{
long returnValue = 0;
long returnValue = 0;
/* Send the Start signal */
swI2CStart();
/* Send the Start signal */
swI2CStart();
/* Send the device address and read the data. All should return success
in order for the writing processed to be successful
*/
if ((swI2CWriteByte(deviceAddress) != 0) ||
(swI2CWriteByte(registerIndex) != 0) ||
(swI2CWriteByte(data) != 0))
{
returnValue = -1;
}
/* Send the device address and read the data. All should return success
in order for the writing processed to be successful
*/
if ((swI2CWriteByte(deviceAddress) != 0) ||
(swI2CWriteByte(registerIndex) != 0) ||
(swI2CWriteByte(data) != 0))
{
returnValue = -1;
}
/* Stop i2c and release the bus */
swI2CStop();
/* Stop i2c and release the bus */
swI2CStop();
return returnValue;
return returnValue;
}
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