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Add framework for STMPE11 ADC interfaces

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4702 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-05-06 01:37:47 +00:00
parent 36f080fa7d
commit edf3b4667b
6 changed files with 385 additions and 16 deletions
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nuttx/include/nuttx/input/stmpe11.h
+61
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@@ -147,6 +147,7 @@
#define STMPE11_ADC_CTRL1 0x20 /* ADC control */
#define STMPE11_ADC_CTRL2 0x21 /* ADC control */
#define STMPE11_ADC_CAPT 0x22 /* To initiate ADC data acquisition */
#define STMPE11_ADC_DATACH(n) (0x30 + ((n) << 1)) /* ADC channel n (16-bit) */
#define STMPE11_ADC_DATACH0 0x30 /* ADC channel 0 (16-bit) */
#define STMPE11_ADC_DATACH1 0x32 /* ADC channel 1 (16_bit) */
#define STMPE11_ADC_DATACH2 0x34 /* ADC channel 2 (16-bit) */
@@ -598,6 +599,66 @@ EXTERN int stmpe11_gpioattach(STMPE11_HANDLE handle, uint8_t pinconfig,
stmpe11_handler_t handler);
#endif
/********************************************************************************************
* Name: stmpe11_adctiming
*
* Description:
* Configure overall ADC timing that applies to all pins.
*
* Input Parameters:
* handle - The handle previously returned by stmpe11_instantiate
* ctrl1 - The value of the ADC_CRTL1 register (see above).
* ctrl2 - The value of the ADC_CRTL2 register (see above).
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is returned to indicate
* the nature of the failure.
*
********************************************************************************************/
#ifndef CONFIG_STMPE11_ADC_DISABLE
EXTERN int stmpe11_adctiming(STMPE11_HANDLE handle, uint8_t ctrl1, uint8_t ctrl2);
#endif
/********************************************************************************************
* Name: stmpe11_adcconfig
*
* Description:
* Configure a pin for ADC input.
*
* Input Parameters:
* handle - The handle previously returned by stmpe11_instantiate
* pin - The ADC pin number
*
* Returned Value:
* Zero is returned on success. Otherwise, a negated errno value is returned to indicate
* the nature of the failure.
*
********************************************************************************************/
#ifndef CONFIG_STMPE11_ADC_DISABLE
EXTERN int stmpe11_adcconfig(STMPE11_HANDLE handle, int pin);
#endif
/********************************************************************************************
* Name: stmpe11_adcread
*
* Description:
* Read the converted analog input value from the select pin.
*
* Input Parameters:
* handle - The handle previously returned by stmpe11_instantiate
* pin - The ADC pin number
*
* Returned Value:
* The converted value (there is no error reporting mechanism).
*
********************************************************************************************/
#ifndef CONFIG_STMPE11_ADC_DISABLE
EXTERN uint16_t stmpe11_adcread(STMPE11_HANDLE handle, int pin);
#endif
#undef EXTERN
#ifdef __cplusplus
}