diff options
Diffstat (limited to 'nuttx/drivers/input/ads7843e.c')
| -rw-r--r-- | nuttx/drivers/input/ads7843e.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/nuttx/drivers/input/ads7843e.c b/nuttx/drivers/input/ads7843e.c index d4b83703c..52d871dd5 100644 --- a/nuttx/drivers/input/ads7843e.c +++ b/nuttx/drivers/input/ads7843e.c @@ -179,14 +179,14 @@ static inline void ads7843e_select(FAR struct spi_dev_s *spi) #else static void ads7843e_select(FAR struct spi_dev_s *spi) { - /* Select P14201 chip (locking the SPI bus in case there are multiple + /* Select ADS7843 chip (locking the SPI bus in case there are multiple * devices competing for the SPI bus */ SPI_LOCK(spi, true); SPI_SELECT(spi, SPIDEV_TOUCHSCREEN, true); - /* Now make sure that the SPI bus is configured for the P14201 (it + /* Now make sure that the SPI bus is configured for the ADS7843 (it * might have gotten configured for a different device while unlocked) */ @@ -201,7 +201,7 @@ static void ads7843e_select(FAR struct spi_dev_s *spi) * * Description: * De-select the SPI, unlocking as necessary. This function must be - * after completing asequence of SPI operations. If we are sharing the SPI + * after completing a sequence of SPI operations. If we are sharing the SPI * bus with other devices (CONFIG_SPI_OWNBUS undefined) then we need to * un-lock the SPI bus for each transfer, possibly losing the current * configuration. @@ -226,7 +226,7 @@ static inline void ads7843e_deselect(FAR struct spi_dev_s *spi) #else static void ads7843e_deselect(FAR struct spi_dev_s *spi) { - /* De-select P14201 chip and relinquish the SPI bus. */ + /* De-select ADS7843 chip and relinquish the SPI bus. */ SPI_SELECT(spi, SPIDEV_TOUCHSCREEN, false); SPI_LOCK(spi, false); @@ -237,7 +237,7 @@ static void ads7843e_deselect(FAR struct spi_dev_s *spi) * Function: ads7843e_configspi * * Description: - * Configure the SPI for use with the ADS7843E. This funcution should be + * Configure the SPI for use with the ADS7843E. This function should be * called once during touchscreen initialization to configure the SPI * bus. Note that if CONFIG_SPI_OWNBUS is not defined, then this function * does nothing. @@ -257,7 +257,7 @@ static inline void ads7843e_configspi(FAR struct spi_dev_s *spi) idbg("Mode: %d Bits: 8 Frequency: %d\n", CONFIG_ADS7843E_SPIMODE, CONFIG_ADS7843E_FREQUENCY); - /* Configure SPI for the P14201. But only if we own the SPI bus. Otherwise, don't + /* Configure SPI for the ADS7843. But only if we own the SPI bus. Otherwise, don't * bother because it might change. */ @@ -265,7 +265,7 @@ static inline void ads7843e_configspi(FAR struct spi_dev_s *spi) SPI_SELECT(spi, SPIDEV_TOUCHSCREEN, true); SPI_SETMODE(spi, CONFIG_ADS7843E_SPIMODE); SPI_SETBITS(spi, 8); - SPI_SETFREQUENCY(spi, CONFIG_ADS7843E_FREQUENCY) + SPI_SETFREQUENCY(spi, CONFIG_ADS7843E_FREQUENCY); SPI_SELECT(spi, SPIDEV_TOUCHSCREEN, false); #endif } @@ -326,13 +326,13 @@ static void ads7843e_notify(FAR struct ads7843e_dev_s *priv) if (priv->nwaiters > 0) { /* After posting this semaphore, we need to exit because the ADS7843E - * is no longer avaialable. + * is no longer available. */ sem_post(&priv->waitsem); } - /* If there are threads waiting on poll() for ADS7843E data to become availabe, + /* If there are threads waiting on poll() for ADS7843E data to become available, * then wake them up now. NOTE: we wake up all waiting threads because we * do not know that they are going to do. If they all try to read the data, * then some make end up blocking after all. @@ -363,7 +363,7 @@ static int ads7843e_sample(FAR struct ads7843e_dev_s *priv, int ret = -EAGAIN; /* Interrupts me be disabled when this is called to (1) prevent posting - * of semphores from interrupt handlers, and (2) to prevent sampled data + * of semaphores from interrupt handlers, and (2) to prevent sampled data * from changing until it has been reported. */ @@ -383,7 +383,7 @@ static int ads7843e_sample(FAR struct ads7843e_dev_s *priv, if (sample->contact == CONTACT_UP) { - /* Next.. no contract. Increment the ID so that next contact ID will be unique */ + /* Next.. no contact. Increment the ID so that next contact ID will be unique */ priv->sample.contact = CONTACT_NONE; priv->id++; @@ -414,7 +414,7 @@ static int ads7843e_waitsample(FAR struct ads7843e_dev_s *priv, int ret; /* Interrupts me be disabled when this is called to (1) prevent posting - * of semphores from interrupt handlers, and (2) to prevent sampled data + * of semaphores from interrupt handlers, and (2) to prevent sampled data * from changing until it has been reported. * * In addition, we will also disable pre-emption to prevent other threads @@ -432,7 +432,7 @@ static int ads7843e_waitsample(FAR struct ads7843e_dev_s *priv, sem_post(&priv->devsem); /* Try to get the a sample... if we cannot, then wait on the semaphore - * that is posted when new sample data is availble. + * that is posted when new sample data is available. */ while (ads7843e_sample(priv, sample) < 0) @@ -501,7 +501,7 @@ static int ads7843e_schedule(FAR struct ads7843e_dev_s *priv) DEBUGASSERT(config != NULL); /* Disable further interrupts. ADS7843E interrupts will be re-enabled - * after the worker thread exectues. + * after the worker thread executes. */ config->enable(config, false); @@ -568,7 +568,7 @@ static void ads7843e_worker(FAR void *arg) if (!pendown) { - /* Ignore the interrupt if the pen was already down (CONTACT_NONE == pen up and + /* Ignore the interrupt if the pen was already up (CONTACT_NONE == pen up and * already reported. CONTACT_UP == pen up, but not reported) */ @@ -614,7 +614,7 @@ static void ads7843e_worker(FAR void *arg) priv->sample.id = priv->id; priv->penchange = true; - /* Notify any waiters that nes ADS7843E data is available */ + /* Notify any waiters that new ADS7843E data is available */ ads7843e_notify(priv); @@ -1055,7 +1055,7 @@ errout: * * Input Parameters: * dev - An SPI driver instance - * config - Persistant board configuration data + * config - Persistent board configuration data * minor - The input device minor number * * Returned Value: |