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Lpcxpresso-Lpc54618 and FT5x06 driver. Some improvements in configuration and the touchscreen driver improves the behavior some. Now I get the calibration screen and detect touches (but no un-touches).

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This commit is contained in:
Gregory Nutt
2017-12-18 17:22:35 -06:00
parent ead23dca30
commit d9997846b6
3 changed files with 62 additions and 43 deletions
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drivers/input/ft5x06.c
+33 -25
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@@ -275,7 +275,6 @@ static void ft5x06_data_worker(FAR void *arg)
FAR struct ft5x06_touch_data_s *sample;
struct i2c_msg_s msg[2];
uint8_t regaddr;
uint8_t ntouches;
int ret;
/* Get a pointer the callbacks for convenience */
@@ -307,7 +306,7 @@ static void ft5x06_data_worker(FAR void *arg)
/* Set up the data read operation.
*
* REVISIT: If CONFIG_FT5X06_SINGLEPOINT is selected, we we not just
* REVISIT: If CONFIG_FT5X06_SINGLEPOINT is selected, could we not just
* set the length for one sample? Or is there some reason why we have to
* read all of the points?
*/
@@ -319,34 +318,43 @@ static void ft5x06_data_worker(FAR void *arg)
msg[1].length = FT5x06_TOUCH_DATA_LEN;
ret = I2C_TRANSFER(priv->i2c, msg, 2);
sample = (FAR struct ft5x06_touch_data_s *)priv->touchbuf;
ntouches = sample->tdstatus;
if (ret >= 0 && ntouches > 0)
if (ret >= 0)
{
/* Notify any waiters that new FT5x06 data is available */
/* In polled mode, we may read invalid touch data. If there is
* no touch data, the FT5x06 returns all 0xff.
*/
sample = (FAR struct ft5x06_touch_data_s *)priv->touchbuf;
/* Notify waiters (only if we ready some valid data) */
if (sample->tdstatus <= FT5x06_MAX_TOUCHES)
{
/* Notify any waiters that new FT5x06 data is available */
priv->valid = true;
ft5x06_notify(priv);
}
priv->valid = true;
ft5x06_notify(priv);
}
#ifdef CONFIG_FT5X06_POLLMODE
else
{
ntouches = 0;
}
/* Update the poll rate */
if (ntouches > 0)
{
priv->delay = POLL_MINDELAY;
}
else if (priv->delay < POLL_MAXDELAY)
{
priv->delay += POLL_INCREMENT;
/* Update the poll rate */
if (sample->tdstatus > 0 && sample->tdstatus <= FT5x06_MAX_TOUCHES)
{
/* Keep it at the minimum if touches are detected. */
priv->delay = POLL_MINDELAY;
}
else if (priv->delay < POLL_MAXDELAY)
{
/* Let it rise gradually to the maximum if there is no touch */
priv->delay += POLL_INCREMENT;
}
#endif
}
#ifdef CONFIG_FT5X06_POLLMODE
/* Exit, re-starting the poll (unless there is no longer any task waiting
* for touch data).
*/