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Add button support

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3029 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2010-10-17 01:05:14 +00:00
parent 022893c79d
commit d0b2389dfb
4 changed files with 219 additions and 5 deletions
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configs/avr32dev1/include/board.h
+49
View File
@@ -87,6 +87,12 @@
#define LED_ASSERTION 2 /* ON ON ON OFF */
#define LED_PANIC 2 /* ON ON ON OFF */
/* Button definitions ***************************************************************/
/* The AVR32DEV1 board has 3 BUTTONs, two of which can be sensed through GPIO pins. */
#define BUTTON1 1 /* Bit 0: Button 1 */
#define BUTTON2 2 /* Bit 1: Button 2 */
/************************************************************************************
* Public Types
************************************************************************************/
@@ -120,6 +126,49 @@ extern "C" {
EXTERN void avr32_boardinitialize(void);
/************************************************************************************
* Name: up_buttoninit
*
* Description:
* up_buttoninit() must be called to initialize button resources. After that,
* up_buttons() may be called to collect the state of all buttons. up_buttons()
* returns an 8-bit bit set with each bit associated with a button. See the
* BUTTON* definitions above for the meaning of each bit in the returned value.
*
************************************************************************************/
#ifdef CONFIG_ARCH_BUTTONS
EXTERN void up_buttoninit(void);
/************************************************************************************
* Name: up_buttons
*
* Description:
* After up_buttoninit() has been called, up_buttons() may be called to collect
* the state of all buttons. up_buttons() returns an 8-bit bit set with each bit
* associated with a button. See the BUTTON* definitions above for the meaning of
* each bit in the returned value.
*
************************************************************************************/
EXTERN uint8_t up_buttons(void);
/************************************************************************************
* Name: up_irqbutton1/2
*
* Description:
* These functions may be called to register an interrupt handler that will be
* called when BUTTON1/2 is depressed. The previous interrupt handler value is
* returned (so that it may restored, if so desired).
*
************************************************************************************/
#ifdef CONFIG_GPIOB_IRQ
EXTERN xcpt_t up_irqbutton1(xcpt_t irqhandler);
EXTERN xcpt_t up_irqbutton2(xcpt_t irqhandler);
#endif
#endif /* CONFIG_ARCH_BUTTONS */
#undef EXTERN
#if defined(__cplusplus)
}