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Add very basic support for the Atmel maXTouch touchscreen controller

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This commit is contained in:
Gregory Nutt
2014-07-05 11:47:54 -06:00
parent 50bd1970d0
commit 3e9f29ba07
6 changed files with 1993 additions and 12 deletions
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drivers/input/tsc2007.c
+11 -11
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@@ -295,7 +295,7 @@ static int tsc2007_sample(FAR struct tsc2007_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.
*/
@@ -349,7 +349,7 @@ static int tsc2007_waitsample(FAR struct tsc2007_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
@@ -367,7 +367,7 @@ static int tsc2007_waitsample(FAR struct tsc2007_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 (tsc2007_sample(priv, sample) < 0)
@@ -699,7 +699,7 @@ static void tsc2007_worker(FAR void *arg)
if (pendown)
{
/* If this is the first (acknowledged) pend down report, then report
/* If this is the first (acknowledged) pen down report, then report
* this as the first contact. If contact == CONTACT_DOWN, it will be
* set to set to CONTACT_MOVE after the contact is first sampled.
*/
@@ -726,7 +726,7 @@ static void tsc2007_worker(FAR void *arg)
priv->sample.id = priv->id;
priv->penchange = true;
/* Notify any waiters that nes TSC2007 data is available */
/* Notify any waiters that new TSC2007 data is available */
tsc2007_notify(priv);
@@ -810,7 +810,7 @@ static int tsc2007_open(FAR struct file *filep)
ret = sem_wait(&priv->devsem);
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);
return -EINTR;
@@ -865,7 +865,7 @@ static int tsc2007_close(FAR struct file *filep)
ret = sem_wait(&priv->devsem);
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);
return -EINTR;
@@ -922,7 +922,7 @@ static ssize_t tsc2007_read(FAR struct file *filep, FAR char *buffer, size_t len
ret = sem_wait(&priv->devsem);
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);
return -EINTR;
@@ -990,7 +990,7 @@ static ssize_t tsc2007_read(FAR struct file *filep, FAR char *buffer, size_t len
{
if (sample.contact == CONTACT_DOWN)
{
/* First contact */
/* Loss of contact */
report->point[0].flags = TOUCH_DOWN | TOUCH_ID_VALID | TOUCH_POS_VALID;
}
@@ -1038,7 +1038,7 @@ static int tsc2007_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
ret = sem_wait(&priv->devsem);
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);
return -EINTR;
@@ -1114,7 +1114,7 @@ static int tsc2007_poll(FAR struct file *filep, FAR struct pollfd *fds,
ret = sem_wait(&priv->devsem);
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);
return -EINTR;