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-rw-r--r--AT91SAM7S256/Source/c_button.c134
1 files changed, 134 insertions, 0 deletions
diff --git a/AT91SAM7S256/Source/c_button.c b/AT91SAM7S256/Source/c_button.c
new file mode 100644
index 0000000..d702dd1
--- /dev/null
+++ b/AT91SAM7S256/Source/c_button.c
@@ -0,0 +1,134 @@
+//
+// Date init 14.12.2004
+//
+// Revision date $Date:: 16-05-06 9:58 $
+//
+// Filename $Workfile:: c_button.c $
+//
+// Version $Revision:: 16 $
+//
+// Archive $Archive:: /LMS2006/Sys01/Main/Firmware/Source/c_button.c $
+//
+// Platform C
+//
+
+#include "stdconst.h"
+#include "modules.h"
+#include "c_button.h"
+#include "c_button.iom"
+#include "c_button.h"
+#include "d_button.h"
+
+#define BTN_PRESCALER 2
+
+enum
+{
+ LONG_TIME = (2000/BTN_PRESCALER)
+};
+
+static IOMAPBUTTON IOMapButton;
+static VARSBUTTON VarsButton;
+static UBYTE BtnCnt;
+
+const HEADER cButton =
+{
+ 0x00040001L,
+ "Button",
+ cButtonInit,
+ cButtonCtrl,
+ cButtonExit,
+ (void *)&IOMapButton,
+ (void *)&VarsButton,
+ (UWORD)sizeof(IOMapButton),
+ (UWORD)sizeof(VarsButton),
+ 0x0000 //Code size - not used so far
+};
+
+
+void cButtonInit(void* pHeader)
+{
+ UBYTE Tmp;
+
+ for (Tmp = 0; Tmp < NO_OF_BTNS; Tmp++)
+ {
+ IOMapButton.State[Tmp] = 0;
+ IOMapButton.BtnCnt[Tmp].PressedCnt = 0;
+ IOMapButton.BtnCnt[Tmp].LongPressCnt = 0;
+ IOMapButton.BtnCnt[Tmp].ShortRelCnt = 0;
+ IOMapButton.BtnCnt[Tmp].LongRelCnt = 0;
+ VarsButton.Cnt[Tmp] = 0;
+ }
+ VarsButton.OldState = 0;
+ BtnCnt = 0;
+ dButtonInit(BTN_PRESCALER);
+}
+
+void cButtonCtrl(void)
+{
+ UBYTE ButtonState, Tmp, ButtonNo;
+
+ for (Tmp = 0; Tmp < NO_OF_BTNS; Tmp++)
+ {
+ IOMapButton.State[Tmp] &= ~PRESSED_EV;
+ }
+ if (++BtnCnt >= BTN_PRESCALER)
+ {
+ BtnCnt = 0;
+ dButtonRead(&ButtonState);
+
+ ButtonNo = 0x01;
+ for (Tmp = 0; Tmp < NO_OF_BTNS; Tmp++)
+ {
+ if (ButtonState & ButtonNo)
+ {
+ if (LONG_TIME >= (VarsButton.Cnt[Tmp]))
+ {
+ (VarsButton.Cnt[Tmp])++;
+ }
+ IOMapButton.State[Tmp] = PRESSED_STATE;
+ if (!((VarsButton.OldState) & ButtonNo))
+ {
+
+ /* Button just pressed */
+ (IOMapButton.State[Tmp]) |= PRESSED_EV;
+ (IOMapButton.BtnCnt[Tmp].PressedCnt)++;
+ VarsButton.Cnt[Tmp] = 0;
+ }
+ else
+ {
+ if (LONG_TIME == VarsButton.Cnt[Tmp])
+ {
+ IOMapButton.State[Tmp] |= LONG_PRESSED_EV;
+ (IOMapButton.BtnCnt[Tmp].LongPressCnt)++;
+ }
+ }
+ }
+ else
+ {
+ IOMapButton.State[Tmp] = 0x00;
+ if ((VarsButton.OldState) & ButtonNo)
+ {
+ if (VarsButton.Cnt[Tmp] > LONG_TIME)
+ {
+ IOMapButton.State[Tmp] = LONG_RELEASED_EV;
+ (IOMapButton.BtnCnt[Tmp].LongRelCnt)++;
+
+ }
+ else
+ {
+ IOMapButton.State[Tmp] = SHORT_RELEASED_EV;
+ (IOMapButton.BtnCnt[Tmp].ShortRelCnt)++;
+ }
+ }
+ }
+ ButtonNo <<= 1;
+ IOMapButton.BtnCnt[Tmp].RelCnt = ((IOMapButton.BtnCnt[Tmp].ShortRelCnt) + (IOMapButton.BtnCnt[Tmp].LongRelCnt));
+ }
+ VarsButton.OldState = ButtonState;
+ }
+}
+
+void cButtonExit(void)
+{
+ dButtonExit();
+}