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added button repeat acceleration

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2193 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Eric Linenberg 2002-09-05 22:41:22 +00:00
parent 6599063a66
commit 99a8a40990
1 changed files with 21 additions and 4 deletions
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25
firmware/drivers/button.c
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@ -31,9 +31,17 @@
struct event_queue button_queue;
/* how often we check to see if a button is pressed */
#define POLL_FREQUENCY HZ/20
/* how long until repeat kicks in */
#define REPEAT_START 6
#define REPEAT_INTERVAL 4
/* the speed repeat starts at */
#define REPEAT_INTERVAL_START 8
/* speed repeat finishes at */
#define REPEAT_INTERVAL_FINISH 2
static int repeat_mask = DEFAULT_REPEAT_MASK;
static int release_mask = DEFAULT_RELEASE_MASK;
@ -45,6 +53,7 @@ static void button_tick(void)
static int tick=0;
static int count=0;
static int lastbtn=0;
static int repeat_speed=REPEAT_INTERVAL_START;
static bool repeat=false;
int diff;
@ -69,14 +78,21 @@ static void button_tick(void)
{
post = true;
repeat = false;
repeat_speed = REPEAT_INTERVAL_START;
}
else /* repeat? */
{
if ( repeat )
{
if ( ! --count ) {
count--;
if (count == 0) {
post = true;
count = REPEAT_INTERVAL;
/* yes we have repeat */
repeat_speed--;
if (repeat_speed < REPEAT_INTERVAL_FINISH)
repeat_speed = REPEAT_INTERVAL_FINISH;
count = repeat_speed;
}
}
else
@ -95,7 +111,8 @@ static void button_tick(void)
{
post = true;
repeat = true;
count = REPEAT_INTERVAL;
/* initial repeat */
count = REPEAT_INTERVAL_START;
}
/* If the OFF button is pressed long enough,
and we are still alive, then the unit must be