devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

Removed old recorder debounce code. Increased repeat speed.

Browse source 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@904 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Björn Stenberg 2002-06-07 11:13:26 +00:00
parent 7a9f95d8db
commit 49c46a7f7c
1 changed files with 2 additions and 49 deletions
Download patch file Download diff file Expand all files Collapse all files

51
firmware/drivers/button.c
View file

@ -30,7 +30,7 @@ static struct event_queue button_queue;
#define POLL_FREQUENCY HZ/10
#define REPEAT_START 3
#define REPEAT_INTERVAL 3
#define REPEAT_INTERVAL 2
static int button_read(void);
@ -105,17 +105,6 @@ int button_get(bool block)
#define LEVEL3 175
#define LEVEL4 225
/* Number of calls to get_button for a button to stop bouncing
* and to be considered held down.
* Should really use a hardware timer for this.
*/
#define BOUNCE_COUNT 200
#define HOLD_COUNT 10000
static int last; /* Last button pressed */
static int count; /* Number of calls button has been down */
/*
*Initialize buttons
*/
@ -134,8 +123,6 @@ void button_init()
ADCR = 0;
ADCSR = ADCSR_ADST | ADCSR_SCAN | 0x5;
#endif
last = BUTTON_NONE;
count = 0;
queue_init(&button_queue);
tick_add_task(button_tick);
}
@ -143,7 +130,7 @@ void button_init()
/*
* Get button pressed from hardware
*/
static int get_raw_button (void)
static int button_read(void)
{
/* Check port B pins for ON and OFF */
int data = PBDR;
@ -177,40 +164,6 @@ static int get_raw_button (void)
return BUTTON_NONE;
}
/*
* Get the currently pressed button.
* Returns one of BUTTON_xxx codes, with possibly a modifier bit set.
* No modifier bits are set when the button is first pressed.
* BUTTON_HELD bit is while the button is being held.
* BUTTON_REL bit is set when button has been released.
*/
static int button_read(void)
{
int btn = get_raw_button();
int ret;
/* Last button pressed is still down */
if (btn != BUTTON_NONE && btn == last) {
count++;
if (count == BOUNCE_COUNT)
return btn;
else if (count >= HOLD_COUNT)
return btn | BUTTON_HELD;
else
return BUTTON_NONE;
}
/* Last button pressed now released */
if (btn == BUTTON_NONE && last != BUTTON_NONE)
ret = last | BUTTON_REL;
else
ret = BUTTON_NONE;
last = btn;
count = 0;
return ret;
}
#elif HAVE_PLAYER_KEYPAD
/* The player has all buttons on port pins: