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This commit is contained in:
Gregory Nutt
2014-10-11 15:20:21 -06:00
parent bb1d91bd83
commit c38b81431f
1 changed files with 9 additions and 10 deletions
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drivers/input/ads7843e.c
+9 -10
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@@ -251,8 +251,8 @@ static void ads7843e_unlock(FAR struct spi_dev_s *spi)
#ifdef CONFIG_SPI_OWNBUS #ifdef CONFIG_SPI_OWNBUS
static inline void ads7843e_configspi(FAR struct spi_dev_s *spi) static inline void ads7843e_configspi(FAR struct spi_dev_s *spi)
{ {
/* Configure SPI for the ADS7843. But only if we own the SPI bus. Otherwise, don't /* Configure SPI for the ADS7843. But only if we own the SPI bus.
* bother because it might change. * Otherwise, don't bother because it might change.
*/ */
SPI_SELECT(spi, SPIDEV_TOUCHSCREEN, true); SPI_SELECT(spi, SPIDEV_TOUCHSCREEN, true);
@@ -282,7 +282,7 @@ static inline void ads7843e_configspi(FAR struct spi_dev_s *spi)
* 12-bit DDDDDDDDDDDD... * 12-bit DDDDDDDDDDDD...
* response * response
* *
* The BUSY output is high imedance when /CS is high. BUSY goes low when * The BUSY output is high impedance when /CS is high. BUSY goes low when
* /CS goes low (within 200ns). BUSY goes high on the falling edge of the * /CS goes low (within 200ns). BUSY goes high on the falling edge of the
* 8th clock (within 200ns); BUSY goes low again after the falling edge of * 8th clock (within 200ns); BUSY goes low again after the falling edge of
* first clock of the 12-bit data read, at the leading edge of the MS bit * first clock of the 12-bit data read, at the leading edge of the MS bit
@@ -311,7 +311,7 @@ static uint16_t ads7843e_sendcmd(FAR struct ads7843e_dev_s *priv, uint8_t cmd)
(void)SPI_SEND(priv->spi, cmd); (void)SPI_SEND(priv->spi, cmd);
/* Wait a tiny amount to make sure that the aquisition time is complete */ /* Wait a tiny amount to make sure that the acquisition time is complete */
up_udelay(3); /* 3 microseconds */ up_udelay(3); /* 3 microseconds */
@@ -625,7 +625,6 @@ static void ads7843e_worker(FAR void *arg)
if (priv->sample.contact == CONTACT_NONE || if (priv->sample.contact == CONTACT_NONE ||
priv->sample.contact == CONTACT_UP) priv->sample.contact == CONTACT_UP)
{ {
goto ignored; goto ignored;
} }
@@ -807,7 +806,7 @@ static int ads7843e_open(FAR struct file *filep)
ret = sem_wait(&priv->devsem); ret = sem_wait(&priv->devsem);
if (ret < 0) if (ret < 0)
{ {
/* This should only happen if the wait was canceled by an signal */ /* This should only happen if the wait was cancelled by an signal */
DEBUGASSERT(errno == EINTR); DEBUGASSERT(errno == EINTR);
return -EINTR; return -EINTR;
@@ -924,7 +923,7 @@ static ssize_t ads7843e_read(FAR struct file *filep, FAR char *buffer, size_t le
ret = sem_wait(&priv->devsem); ret = sem_wait(&priv->devsem);
if (ret < 0) if (ret < 0)
{ {
/* This should only happen if the wait was canceled by an signal */ /* This should only happen if the wait was cancelled by an signal */
idbg("sem_wait: %d\n", errno); idbg("sem_wait: %d\n", errno);
DEBUGASSERT(errno == EINTR); DEBUGASSERT(errno == EINTR);
@@ -1037,7 +1036,7 @@ static int ads7843e_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
ret = sem_wait(&priv->devsem); ret = sem_wait(&priv->devsem);
if (ret < 0) if (ret < 0)
{ {
/* This should only happen if the wait was canceled by an signal */ /* This should only happen if the wait was cancelled by an signal */
DEBUGASSERT(errno == EINTR); DEBUGASSERT(errno == EINTR);
return -EINTR; return -EINTR;
@@ -1097,7 +1096,7 @@ static int ads7843e_poll(FAR struct file *filep, FAR struct pollfd *fds,
ret = sem_wait(&priv->devsem); ret = sem_wait(&priv->devsem);
if (ret < 0) if (ret < 0)
{ {
/* This should only happen if the wait was canceled by an signal */ /* This should only happen if the wait was cancelled by an signal */
DEBUGASSERT(errno == EINTR); DEBUGASSERT(errno == EINTR);
return -EINTR; return -EINTR;
@@ -1279,7 +1278,7 @@ int ads7843e_register(FAR struct spi_dev_s *spi,
/* If multiple ADS7843E devices are supported, then we will need to add /* If multiple ADS7843E devices are supported, then we will need to add
* this new instance to a list of device instances so that it can be * this new instance to a list of device instances so that it can be
* found by the interrupt handler based on the recieved IRQ number. * found by the interrupt handler based on the received IRQ number.
*/ */
#ifdef CONFIG_ADS7843E_MULTIPLE #ifdef CONFIG_ADS7843E_MULTIPLE