diff options
Diffstat (limited to 'peripherals/pio/pio_keypad.h')
| -rw-r--r-- | peripherals/pio/pio_keypad.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/peripherals/pio/pio_keypad.h b/peripherals/pio/pio_keypad.h new file mode 100644 index 0000000..166f066 --- /dev/null +++ b/peripherals/pio/pio_keypad.h @@ -0,0 +1,153 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+#ifndef PIO_KEYPAD_H
+#define PIO_KEYPAD_H
+
+//------------------------------------------------------------------------------
+// Headers
+//------------------------------------------------------------------------------
+
+#include <board.h>
+
+//------------------------------------------------------------------------------
+// Global Definitions
+//------------------------------------------------------------------------------
+
+
+
+
+//------------------------------------------------------------------------------
+// Global Macros
+//------------------------------------------------------------------------------
+//enable keypad press interrupt
+#define PIO_KeyPadEnableKPIt(pPIO) ((pPIO)->KIER = 1<<0)
+
+//enable keypad release interrupt
+#define PIO_KeyPadEnableKRIt(pPIO) ((pPIO)->KIER = 1<<1)
+
+//disable keypad press interrupt
+#define PIO_KeyPadDisableKPIt(pPIO) ((pPIO)->KIDR = 1<<0)
+
+//disable keypad release interrupt
+#define PIO_KeyPadDisableKRIt(pPIO) ((pPIO)->KIDR = 1<<1)
+
+//enable keypad controller interrupt
+#define PIO_KeyPadEnableIt(pPIO, mode) {switch(mode):\
+ case 1:PIO_KeyPadEnableKPIt(pPIO);break;\
+ case 2:PIO_KeyPadEnableKRIt(pPIO);break;\
+ case 3:PIO_KeyPadEnableKPIt(pPIO);\
+ PIO_KeyPadEnableKRIt(pPIO);break;\
+ default:break;\
+ }
+
+//disable keypad controller interrupt
+#define PIO_KeyPadDisableIt(pPIO, mode) {switch(mode):\
+ case 1:PIO_KeyPadDisableKPIt(pPIO);break;\
+ case 2:PIO_KeyPadDisableKRIt(pPIO);break;\
+ case 3:PIO_KeyPadDisableKPIt(pPIO);\
+ PIO_KeyPadDisableKRIt(pPIO);break;\
+ default:break;\
+ }
+
+//get keypad controller interrupt mask
+#define PIO_KeyPadGetItMask(pPIO) ((pPIO)->PIO_KIMR)
+
+
+//------------------------------------------------------------------------------
+/// Calculates the size of an array of Pin instances. The array must be defined
+/// locally (i.e. not a pointer), otherwise the computation will not be correct.
+/// \param pPins Local array of Pin instances.
+/// \return Number of elements in array.
+//------------------------------------------------------------------------------
+#define PIO_LISTSIZE(pPins) (sizeof(pPins) / sizeof(Pin))
+
+//------------------------------------------------------------------------------
+// Global Types
+//------------------------------------------------------------------------------
+typedef enum {
+ FALSE,
+ TRUE
+} bool;
+
+typedef struct _KeyPadConfig {
+ bool enable;//keypad controller enable or disable
+ unsigned char col:3;//config column size
+ unsigned char row:3;//config row size
+ unsigned int debouncing;//config debouncing
+} KeyPadConfig;
+
+
+typedef struct _KeyColRow {
+ unsigned char row:3;
+ unsigned char col:3;
+} KeyColRow;
+
+
+typedef struct _KeyDownEvent {
+ bool press;//at least 1 pressed key detected, or 0
+ unsigned char keyPressNum;//simultaneously pressed key number
+ KeyColRow preKeyMatrix[4];//pressed key matrix
+} KeyDownEvent;
+
+
+
+typedef struct _KeyUpEvent {
+ bool release;//at least 1 released key detected, or 0
+ unsigned char keyRelNum;//simultaneously released key number
+ KeyColRow relKeyMatrix[4];//released key matrix
+} KeyUpEvent;
+
+
+
+typedef struct _KeyEvent {
+ KeyDownEvent kdEvent;
+ KeyUpEvent kuEvent;
+} KeyEvent;
+
+//------------------------------------------------------------------------------
+// Global Access Macros
+//------------------------------------------------------------------------------
+
+
+//------------------------------------------------------------------------------
+// Global Functions
+//------------------------------------------------------------------------------
+
+void PIO_KeyPadConfig(AT91S_PIO *pPIO, KeyPadConfig *config);
+
+void PIO_GetKeyStatus(AT91S_PIO *pPIO, KeyEvent *event);
+
+void PIO_KeypadEnableIt(AT91S_PIO *pio, unsigned int mode);
+
+void PIO_KeypadDisableIt(AT91S_PIO *pio, unsigned int mode);
+
+
+#endif //#ifndef PIO_KEYPAD_H
+
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