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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: Isaac Assegai <isaac.a.travers@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Isaac Assegai
Greg Kroah-Hartman
parent
f27ece1499
commit
7ef803a92d
@ -98,13 +98,13 @@ static void swI2CWait(void)
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*/
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while(peekIO(0x3ce, 0x61) & 0x10);
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#else
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int i, Temp;
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int i, Temp;
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for(i=0; i<600; i++)
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{
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Temp = i;
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Temp += i;
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}
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for(i=0; i<600; i++)
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{
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Temp = i;
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Temp += i;
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}
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#endif
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}
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@ -122,27 +122,27 @@ static void swI2CWait(void)
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*/
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void swI2CSCL(unsigned char value)
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{
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unsigned long ulGPIOData;
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unsigned long ulGPIODirection;
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unsigned long ulGPIOData;
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unsigned long ulGPIODirection;
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ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg);
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if (value) /* High */
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{
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/* Set direction as input. This will automatically pull the signal up. */
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ulGPIODirection &= ~(1 << g_i2cClockGPIO);
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POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
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}
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else /* Low */
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{
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/* Set the signal down */
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ulGPIOData = PEEK32(g_i2cClkGPIODataReg);
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ulGPIOData &= ~(1 << g_i2cClockGPIO);
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POKE32(g_i2cClkGPIODataReg, ulGPIOData);
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ulGPIODirection = PEEK32(g_i2cClkGPIODataDirReg);
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if (value) /* High */
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{
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/* Set direction as input. This will automatically pull the signal up. */
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ulGPIODirection &= ~(1 << g_i2cClockGPIO);
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POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
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}
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else /* Low */
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{
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/* Set the signal down */
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ulGPIOData = PEEK32(g_i2cClkGPIODataReg);
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ulGPIOData &= ~(1 << g_i2cClockGPIO);
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POKE32(g_i2cClkGPIODataReg, ulGPIOData);
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/* Set direction as output */
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ulGPIODirection |= (1 << g_i2cClockGPIO);
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POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
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}
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/* Set direction as output */
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ulGPIODirection |= (1 << g_i2cClockGPIO);
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POKE32(g_i2cClkGPIODataDirReg, ulGPIODirection);
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}
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}
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/*
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@ -159,27 +159,27 @@ void swI2CSCL(unsigned char value)
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*/
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void swI2CSDA(unsigned char value)
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{
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unsigned long ulGPIOData;
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unsigned long ulGPIODirection;
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unsigned long ulGPIOData;
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unsigned long ulGPIODirection;
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ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
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if (value) /* High */
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{
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/* Set direction as input. This will automatically pull the signal up. */
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ulGPIODirection &= ~(1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
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}
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else /* Low */
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{
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/* Set the signal down */
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ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
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ulGPIOData &= ~(1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataReg, ulGPIOData);
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ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
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if (value) /* High */
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{
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/* Set direction as input. This will automatically pull the signal up. */
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ulGPIODirection &= ~(1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
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}
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else /* Low */
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{
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/* Set the signal down */
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ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
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ulGPIOData &= ~(1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataReg, ulGPIOData);
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/* Set direction as output */
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ulGPIODirection |= (1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
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}
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/* Set direction as output */
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ulGPIODirection |= (1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
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}
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}
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/*
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@ -190,23 +190,23 @@ void swI2CSDA(unsigned char value)
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*/
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static unsigned char swI2CReadSDA(void)
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{
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unsigned long ulGPIODirection;
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unsigned long ulGPIOData;
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unsigned long ulGPIODirection;
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unsigned long ulGPIOData;
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/* Make sure that the direction is input (High) */
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ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
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if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO)))
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{
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ulGPIODirection &= ~(1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
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}
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/* Make sure that the direction is input (High) */
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ulGPIODirection = PEEK32(g_i2cDataGPIODataDirReg);
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if ((ulGPIODirection & (1 << g_i2cDataGPIO)) != (~(1 << g_i2cDataGPIO)))
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{
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ulGPIODirection &= ~(1 << g_i2cDataGPIO);
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POKE32(g_i2cDataGPIODataDirReg, ulGPIODirection);
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}
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/* Now read the SDA line */
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ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
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if (ulGPIOData & (1 << g_i2cDataGPIO))
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return 1;
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else
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return 0;
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/* Now read the SDA line */
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ulGPIOData = PEEK32(g_i2cDataGPIODataReg);
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if (ulGPIOData & (1 << g_i2cDataGPIO))
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return 1;
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else
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return 0;
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}
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/*
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@ -214,7 +214,7 @@ static unsigned char swI2CReadSDA(void)
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*/
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static void swI2CAck(void)
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{
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return; /* Single byte read is ok without it. */
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return; /* Single byte read is ok without it. */
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}
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/*
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@ -222,10 +222,10 @@ static void swI2CAck(void)
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*/
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static void swI2CStart(void)
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{
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/* Start I2C */
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swI2CSDA(1);
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swI2CSCL(1);
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swI2CSDA(0);
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/* Start I2C */
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swI2CSDA(1);
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swI2CSCL(1);
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swI2CSDA(0);
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}
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/*
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@ -233,10 +233,10 @@ static void swI2CStart(void)
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*/
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static void swI2CStop(void)
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{
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/* Stop the I2C */
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swI2CSCL(1);
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swI2CSDA(0);
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swI2CSDA(1);
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/* Stop the I2C */
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swI2CSCL(1);
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swI2CSDA(0);
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swI2CSDA(1);
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}
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/*
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@ -251,60 +251,60 @@ static void swI2CStop(void)
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*/
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static long swI2CWriteByte(unsigned char data)
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{
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unsigned char value = data;
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int i;
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unsigned char value = data;
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int i;
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/* Sending the data bit by bit */
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for (i=0; i<8; i++)
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{
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/* Set SCL to low */
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swI2CSCL(0);
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/* Sending the data bit by bit */
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for (i=0; i<8; i++)
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{
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/* Set SCL to low */
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swI2CSCL(0);
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/* Send data bit */
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if ((value & 0x80) != 0)
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swI2CSDA(1);
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else
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swI2CSDA(0);
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/* Send data bit */
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if ((value & 0x80) != 0)
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swI2CSDA(1);
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else
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swI2CSDA(0);
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swI2CWait();
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swI2CWait();
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/* Toggle clk line to one */
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swI2CSCL(1);
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swI2CWait();
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/* Toggle clk line to one */
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swI2CSCL(1);
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swI2CWait();
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/* Shift byte to be sent */
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value = value << 1;
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}
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/* Shift byte to be sent */
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value = value << 1;
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}
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/* Set the SCL Low and SDA High (prepare to get input) */
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swI2CSCL(0);
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swI2CSDA(1);
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/* Set the SCL Low and SDA High (prepare to get input) */
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swI2CSCL(0);
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swI2CSDA(1);
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/* Set the SCL High for ack */
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swI2CWait();
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swI2CSCL(1);
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swI2CWait();
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/* Set the SCL High for ack */
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swI2CWait();
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swI2CSCL(1);
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swI2CWait();
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/* Read SDA, until SDA==0 */
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for(i=0; i<0xff; i++)
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{
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if (!swI2CReadSDA())
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break;
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/* Read SDA, until SDA==0 */
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for(i=0; i<0xff; i++)
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{
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if (!swI2CReadSDA())
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break;
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swI2CSCL(0);
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swI2CWait();
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swI2CSCL(1);
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swI2CWait();
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}
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swI2CSCL(0);
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swI2CWait();
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swI2CSCL(1);
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swI2CWait();
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}
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/* Set the SCL Low and SDA High */
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swI2CSCL(0);
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swI2CSDA(1);
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/* Set the SCL Low and SDA High */
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swI2CSCL(0);
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swI2CSDA(1);
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if (i<0xff)
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return 0;
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else
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return -1;
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if (i<0xff)
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return 0;
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else
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return -1;
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}
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/*
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@ -319,32 +319,32 @@ static long swI2CWriteByte(unsigned char data)
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*/
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static unsigned char swI2CReadByte(unsigned char ack)
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{
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int i;
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unsigned char data = 0;
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int i;
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unsigned char data = 0;
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for(i=7; i>=0; i--)
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{
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/* Set the SCL to Low and SDA to High (Input) */
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swI2CSCL(0);
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swI2CSDA(1);
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swI2CWait();
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for(i=7; i>=0; i--)
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{
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/* Set the SCL to Low and SDA to High (Input) */
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swI2CSCL(0);
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swI2CSDA(1);
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swI2CWait();
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/* Set the SCL High */
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swI2CSCL(1);
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swI2CWait();
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/* Set the SCL High */
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swI2CSCL(1);
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swI2CWait();
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/* Read data bits from SDA */
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data |= (swI2CReadSDA() << i);
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}
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/* Read data bits from SDA */
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data |= (swI2CReadSDA() << i);
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}
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if (ack)
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swI2CAck();
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if (ack)
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swI2CAck();
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/* Set the SCL Low and SDA High */
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swI2CSCL(0);
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swI2CSDA(1);
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/* Set the SCL Low and SDA High */
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swI2CSCL(0);
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swI2CSDA(1);
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return data;
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return data;
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}
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/*
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@ -361,29 +361,29 @@ static unsigned char swI2CReadByte(unsigned char ack)
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static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
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unsigned char i2cDataGPIO)
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{
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int i;
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int i;
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/* Initialize the GPIO pin for the i2c Clock Register */
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g_i2cClkGPIODataReg = GPIO_DATA_SM750LE;
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g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
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/* Initialize the GPIO pin for the i2c Clock Register */
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g_i2cClkGPIODataReg = GPIO_DATA_SM750LE;
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g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
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/* Initialize the Clock GPIO Offset */
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g_i2cClockGPIO = i2cClkGPIO;
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/* Initialize the Clock GPIO Offset */
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g_i2cClockGPIO = i2cClkGPIO;
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/* Initialize the GPIO pin for the i2c Data Register */
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g_i2cDataGPIODataReg = GPIO_DATA_SM750LE;
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g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
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/* Initialize the GPIO pin for the i2c Data Register */
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g_i2cDataGPIODataReg = GPIO_DATA_SM750LE;
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g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION_SM750LE;
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/* Initialize the Data GPIO Offset */
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g_i2cDataGPIO = i2cDataGPIO;
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/* Initialize the Data GPIO Offset */
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g_i2cDataGPIO = i2cDataGPIO;
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/* Note that SM750LE don't have GPIO MUX and power is always on */
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/* Note that SM750LE don't have GPIO MUX and power is always on */
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/* Clear the i2c lines. */
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for(i=0; i<9; i++)
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swI2CStop();
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/* Clear the i2c lines. */
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for(i=0; i<9; i++)
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swI2CStop();
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return 0;
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return 0;
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}
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/*
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@ -398,49 +398,49 @@ static long swI2CInit_SM750LE(unsigned char i2cClkGPIO,
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* 0 - Success
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*/
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long swI2CInit(
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unsigned char i2cClkGPIO,
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unsigned char i2cDataGPIO
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unsigned char i2cClkGPIO,
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unsigned char i2cDataGPIO
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)
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{
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int i;
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int i;
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/* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
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if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31))
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return -1;
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/* Return 0 if the GPIO pins to be used is out of range. The range is only from [0..63] */
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if ((i2cClkGPIO > 31) || (i2cDataGPIO > 31))
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return -1;
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if (getChipType() == SM750LE)
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return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO);
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if (getChipType() == SM750LE)
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return swI2CInit_SM750LE(i2cClkGPIO, i2cDataGPIO);
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/* Initialize the GPIO pin for the i2c Clock Register */
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g_i2cClkGPIOMuxReg = GPIO_MUX;
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g_i2cClkGPIODataReg = GPIO_DATA;
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g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
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/* Initialize the GPIO pin for the i2c Clock Register */
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g_i2cClkGPIOMuxReg = GPIO_MUX;
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g_i2cClkGPIODataReg = GPIO_DATA;
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g_i2cClkGPIODataDirReg = GPIO_DATA_DIRECTION;
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/* Initialize the Clock GPIO Offset */
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g_i2cClockGPIO = i2cClkGPIO;
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/* Initialize the Clock GPIO Offset */
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g_i2cClockGPIO = i2cClkGPIO;
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/* Initialize the GPIO pin for the i2c Data Register */
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g_i2cDataGPIOMuxReg = GPIO_MUX;
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g_i2cDataGPIODataReg = GPIO_DATA;
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g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
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/* Initialize the GPIO pin for the i2c Data Register */
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g_i2cDataGPIOMuxReg = GPIO_MUX;
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g_i2cDataGPIODataReg = GPIO_DATA;
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g_i2cDataGPIODataDirReg = GPIO_DATA_DIRECTION;
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/* Initialize the Data GPIO Offset */
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g_i2cDataGPIO = i2cDataGPIO;
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/* Initialize the Data GPIO Offset */
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g_i2cDataGPIO = i2cDataGPIO;
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/* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
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POKE32(g_i2cClkGPIOMuxReg,
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PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO));
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POKE32(g_i2cDataGPIOMuxReg,
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PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO));
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/* Enable the GPIO pins for the i2c Clock and Data (GPIO MUX) */
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POKE32(g_i2cClkGPIOMuxReg,
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PEEK32(g_i2cClkGPIOMuxReg) & ~(1 << g_i2cClockGPIO));
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POKE32(g_i2cDataGPIOMuxReg,
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PEEK32(g_i2cDataGPIOMuxReg) & ~(1 << g_i2cDataGPIO));
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/* Enable GPIO power */
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enableGPIO(1);
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/* Enable GPIO power */
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enableGPIO(1);
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|
||||
/* 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;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user