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arch/arm/src/lpc54xx: Costmetic.

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This commit is contained in:
Gregory Nutt
2017-12-11 15:04:51 -06:00
parent d74d9be429
commit d51554c101
2 changed files with 26 additions and 21 deletions
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arch/arm/src/lpc54xx/lpc54_i2c_master.c
+13 -13
View File
@@ -80,22 +80,22 @@
struct lpc54_i2cdev_s
{
struct i2c_master_s dev; /* Generic I2C device */
uintptr_t base; /* Base address of Flexcomm registers */
uint16_t irq; /* Flexcomm IRQ number */
uint32_t fclock; /* Flexcomm function clock frequency */
struct i2c_master_s dev; /* Generic I2C device */
uintptr_t base; /* Base address of Flexcomm registers */
sem_t exclsem; /* Only one thread can access at a time */
sem_t waitsem; /* Supports wait for state machine completion */
volatile uint8_t state; /* State of state machine */
WDOG_ID timeout; /* watchdog to timeout when bus hung */
uint32_t frequency; /* Current I2C frequency */
WDOG_ID timeout; /* Watchdog to timeout when bus hung */
uint32_t frequency; /* Current I2C frequency */
uint32_t fclock; /* Flexcomm function clock frequency */
struct i2c_msg_s *msgs; /* remaining transfers - first one is in progress */
unsigned int nmsg; /* number of transfer remaining */
struct i2c_msg_s *msgs; /* Remaining transfers (first is in progress) */
unsigned int nmsg; /* Number of transfer remaining */
uint16_t wrcnt; /* number of bytes sent to tx fifo */
uint16_t rdcnt; /* number of bytes read from rx fifo */
sem_t exclsem; /* Only one thread can access at a time */
sem_t waitsem; /* Supports wait for state machine completion */
uint16_t irq; /* Flexcomm IRQ number */
uint16_t wrcnt; /* Number of bytes sent to tx fifo */
uint16_t rdcnt; /* Number of bytes read from rx fifo */
volatile uint8_t state; /* State of state machine */
};
/****************************************************************************
arch/arm/src/lpc54xx/lpc54_spi_master.c
+13 -8
View File
@@ -238,7 +238,8 @@ static int lpc54_spi_lock(FAR struct spi_dev_s *dev, bool lock)
*
****************************************************************************/
static uint32_t lpc54_spi_setfrequency(FAR struct spi_dev_s *dev, uint32_t frequency)
static uint32_t lpc54_spi_setfrequency(FAR struct spi_dev_s *dev,
uint32_t frequency)
{
FAR struct lpc54_spidev_s *priv = (FAR struct lpc54_spidev_s *)dev;
uint32_t actual;
@@ -281,7 +282,8 @@ static uint32_t lpc54_spi_setfrequency(FAR struct spi_dev_s *dev, uint32_t frequ
*
****************************************************************************/
static void lpc54_spi_setmode(FAR struct spi_dev_s *dev, enum spi_mode_e mode)
static void lpc54_spi_setmode(FAR struct spi_dev_s *dev,
enum spi_mode_e mode)
{
FAR struct lpc54_spidev_s *priv = (FAR struct lpc54_spidev_s *)dev;
uint32_t regval;
@@ -407,7 +409,8 @@ static uint16_t lpc54_spi_send(FAR struct spi_dev_s *dev, uint16_t wd)
*
****************************************************************************/
static void lpc54_spi_sndblock(FAR struct spi_dev_s *dev, FAR const void *buffer, size_t nwords)
static void lpc54_spi_sndblock(FAR struct spi_dev_s *dev,
FAR const void *buffer, size_t nwords)
{
FAR uint8_t *ptr = (FAR uint8_t *)buffer;
uint8_t data;
@@ -444,7 +447,8 @@ static void lpc54_spi_sndblock(FAR struct spi_dev_s *dev, FAR const void *buffer
*
****************************************************************************/
static void lpc54_spi_recvblock(FAR struct spi_dev_s *dev, FAR void *buffer, size_t nwords)
static void lpc54_spi_recvblock(FAR struct spi_dev_s *dev, FAR void *buffer,
size_t nwords)
{
FAR uint8_t *ptr = (FAR uint8_t *)buffer;
@@ -508,12 +512,13 @@ static void lpc54_spidev_initialize(FAR struct lpc54_spidev_s *priv)
*
* Description:
* Initialize the selected SPI port
* 0 - SPI
* 1 - SSP0
* 2 - SSP1
* 0 - SPI0
* 1 - SPI1
* ...
* 9 - SSP9
*
* Input Parameter:
* Port number (for hardware that has multiple SPI interfaces)
* port - SPI peripheral number. 0..9
*
* Returned Value:
* Valid SPI device structure reference on success; a NULL on failure