diff options
| author | Björn Stenberg <bjorn@haxx.se> | 2002-05-17 19:23:04 +0000 |
|---|---|---|
| committer | Björn Stenberg <bjorn@haxx.se> | 2002-05-17 19:23:04 +0000 |
| commit | 833556c2e7683aec583d5558fee400b1c6554623 (patch) | |
| tree | 8fc0869b06711ce7d4e3ea28e70435e381a14c5c /firmware | |
| parent | af1e5e6926ac5378f7e7f19a12441b0a63238f09 (diff) | |
Doh! Button signals are active low
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@624 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/drivers/button.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/firmware/drivers/button.c b/firmware/drivers/button.c index 9e00efc0ec..3e35e0eea4 100644 --- a/firmware/drivers/button.c +++ b/firmware/drivers/button.c @@ -170,17 +170,18 @@ int button_get(void) int portc = PCDR; int btn = 0; - if ( portc & 1 ) + /* buttons are active low */ + if ( !(portc & 1) ) btn |= BUTTON_LEFT; - if ( portc & 2 ) + if ( !(portc & 2) ) btn |= BUTTON_MENU; - if ( portc & 4 ) + if ( !(portc & 4) ) btn |= BUTTON_RIGHT; - if ( portc & 8 ) + if ( !(portc & 8) ) btn |= BUTTON_PLAY | BUTTON_UP; - if ( porta & 0x20 ) + if ( !(porta & 0x20) ) btn |= BUTTON_ON; - if ( porta & 0x800 ) + if ( !(porta & 0x800) ) btn |= BUTTON_STOP | BUTTON_DOWN; return btn; |