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Some additional, minor improvements to djoystick interrupt controls

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This commit is contained in:
Gregory Nutt 2014-11-27 20:20:10 -06:00
parent 3909f28060
commit 2d9bd07525
2 changed files with 22 additions and 10 deletions
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23
drivers/input/djoystick.c
View File

@ -190,7 +190,8 @@ static void djoy_enable(FAR struct djoy_upperhalf_s *priv)
{
FAR const struct djoy_lowerhalf_s *lower = priv->du_lower;
FAR struct djoy_open_s *opriv;
djoy_buttonset_t intmask;
djoy_buttonset_t press;
djoy_buttonset_t release;
irqstate_t flags;
#ifndef CONFIG_DISABLE_POLL
int i;
@ -207,7 +208,9 @@ static void djoy_enable(FAR struct djoy_upperhalf_s *priv)
/* Visit each opened reference to the device */
intmask = 0;
press = 0;
release = 0;
for (opriv = priv->du_open; opriv; opriv = opriv->do_flink)
{
#ifndef CONFIG_DISABLE_POLL
@ -219,8 +222,8 @@ static void djoy_enable(FAR struct djoy_upperhalf_s *priv)
{
/* Yes.. OR in the poll event buttons */
intmask |= (opriv->do_pollevents.dp_press |
opriv->do_pollevents.dp_release);
press |= opriv->do_pollevents.dp_press;
release |= opriv->do_pollevents.dp_release;
break;
}
}
@ -229,24 +232,26 @@ static void djoy_enable(FAR struct djoy_upperhalf_s *priv)
#ifndef CONFIG_DISABLE_SIGNALS
/* OR in the signal events */
intmask |= (opriv->do_notify.dn_press | opriv->do_notify.dn_release);
press |= opriv->do_notify.dn_press;
release |= opriv->do_notify.dn_release;
#endif
}
/* Enable/disable button interrupts */
DEBUGASSERT(lower->dl_enable);
if (intmask != 0)
if (press != 0 || release != 0)
{
/* Enable interrupts with the new button set */
lower->dl_enable(lower, intmask, (djoy_interrupt_t)djoy_interrupt, priv);
lower->dl_enable(lower, press, release,
(djoy_interrupt_t)djoy_interrupt, priv);
}
else
{
/* Disable further interrupts */
lower->dl_enable(lower, 0, NULL, NULL);
lower->dl_enable(lower, 0, 0, NULL, NULL);
}
irqrestore(flags);
@ -812,7 +817,7 @@ int djoy_register(FAR const char *devname,
/* Make sure that all djoystick interrupts are disabled */
DEBUGASSERT(lower->dl_enable);
lower->dl_enable(lower, (djoy_buttonset_t)0, NULL, NULL);
lower->dl_enable(lower, 0, 0, NULL, NULL);
/* Initialize the new djoystick driver instance */

9
include/nuttx/input/djoystick.h
View File

@ -82,6 +82,13 @@
#define DJOY_BUTTON_3 (1 << 7) /* Bit 7: True = Button 4 pressed */
#define DJOY_BUTTONS_ALL 0xff /* The set of all buttons */
/* Typical usage */
#define DJOY_BUTTON_SELECT DJOY_BUTTON_1
#define DJOY_BUTTON_FIRE DJOY_BUTTON_2
#define DJOY_BUTTON_JUMP DJOY_BUTTON_3
#define DJOY_BUTTON_RUN DJOY_BUTTON_4
/* IOCTL commands
*
* Discrete joystick drivers do not support the character driver write() or
@ -185,7 +192,7 @@ struct djoy_lowerhalf_s
*/
CODE void (*dl_enable)(FAR const struct djoy_lowerhalf_s *lower,
djoy_buttonset_t buttons,
djoy_buttonset_t press, djoy_buttonset_t release,
djoy_interrupt_t handler, FAR void *arg);
};