237 lines
7.9 KiB
C
237 lines
7.9 KiB
C
/****************************************************************************
|
|
* arch/arm/src/cxd56xx/cxd56_gpioint.h
|
|
*
|
|
* Copyright (C) 2008-2013 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Copyright 2018 Sony Semiconductor Solutions Corporation
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name of Sony Semiconductor Solutions Corporation nor
|
|
* the names of its contributors may be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS 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 __ARCH_ARM_SRC_CXD56XX_CXD56_GPIOINT_H
|
|
#define __ARCH_ARM_SRC_CXD56XX_CXD56_GPIOINT_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include "chip.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* 32-bit encoded gpioconf value
|
|
*
|
|
* 3322 2222 2222 1111 1111 1100 0000 0000
|
|
* 1098 7654 3210 9876 5432 1098 7654 3210
|
|
* ---- ---- ---- ---- ---- ---- ---- ----
|
|
* .... .... .... ..B. .... .... .... .... Both detect mode
|
|
* .... .... .... ...T .... .... .... .... Toggle detect mode
|
|
* .... .... .... .... .... .... .... N... Noise Filter
|
|
* .... .... .... .... .... .... .... .YYY Polarity
|
|
*/
|
|
|
|
/* GPIO Interrupt Polarity Definitions */
|
|
|
|
/* #define GPIOINT_INSTANT_HIGH (0) */ /* Not supported */
|
|
|
|
/* #define GPIOINT_INSTANT_LOW (1) */ /* Not supported */
|
|
|
|
#define GPIOINT_LEVEL_HIGH (2) /* High Level */
|
|
#define GPIOINT_LEVEL_LOW (3) /* Low Level */
|
|
#define GPIOINT_EDGE_RISE (4) /* Rising Edge */
|
|
#define GPIOINT_EDGE_FALL (5) /* Falling Edge */
|
|
#define GPIOINT_EDGE_BOTH (7) /* Both Edge */
|
|
#define GPIOINT_PSEUDO_EDGE_RISE (GPIOINT_LEVEL_HIGH | \
|
|
GPIOINT_TOGGLE_MODE_MASK)
|
|
/* Rising Edge without clear */
|
|
|
|
#define GPIOINT_PSEUDO_EDGE_FALL (GPIOINT_LEVEL_LOW | \
|
|
GPIOINT_TOGGLE_MODE_MASK)
|
|
/* Falling Edge without clear */
|
|
|
|
#define GPIOINT_PSEUDO_EDGE_BOTH (GPIOINT_TOGGLE_MODE_MASK | \
|
|
GPIOINT_TOGGLE_BOTH_MASK)
|
|
/* Both Edge without clear */
|
|
|
|
/* GPIO Interrupt Noise Filter Definitions */
|
|
|
|
#define GPIOINT_NOISE_FILTER_ENABLE (1u << 3)
|
|
#define GPIOINT_NOISE_FILTER_DISABLE (0u << 3)
|
|
|
|
/* Use Pseudo Edge Interrupt */
|
|
|
|
#define GPIOINT_TOGGLE_MODE_MASK (1u << 16)
|
|
#define GPIOINT_TOGGLE_BOTH_MASK (1u << 17)
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
struct cxd56_gpioint_status_s
|
|
{
|
|
int irq;
|
|
uint32_t polarity;
|
|
bool filter;
|
|
bool enable;
|
|
};
|
|
|
|
typedef struct cxd56_gpioint_status_s cxd56_gpioint_status_t;
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_config
|
|
*
|
|
* Description:
|
|
* Configure a GPIO pin as an GPIO pin interrupt source
|
|
*
|
|
* Input Parameters:
|
|
* pin - Pin number defined in cxd56_pinconfig.h
|
|
* gpiocfg - GPIO Interrupt Polarity and Noise Filter Configuration Value
|
|
* isr - Interrupt handler
|
|
* arg - Argument for the interrupt handler
|
|
*
|
|
* Returned Value:
|
|
* IRQ number on success; a negated errno value on failure.
|
|
*
|
|
* Assumptions:
|
|
* The interrupt are disabled so that read-modify-write operations
|
|
* are safe.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int cxd56_gpioint_config(uint32_t pin, uint32_t gpiocfg, xcpt_t isr,
|
|
FAR void *arg);
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_irq
|
|
*
|
|
* Description:
|
|
* Get a GPIO interrupt number for specified pin number
|
|
*
|
|
* Returned Value:
|
|
* IRQ number on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int cxd56_gpioint_irq(uint32_t pin);
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_pin
|
|
*
|
|
* Description:
|
|
* Get a pin number for specified IRQ number
|
|
*
|
|
* Returned Value:
|
|
* Pin number on success; a negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int cxd56_gpioint_pin(int irq);
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_enable
|
|
*
|
|
* Description:
|
|
* Enable a GPIO interrupt for specified pin number
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void cxd56_gpioint_enable(uint32_t pin);
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_disable
|
|
*
|
|
* Description:
|
|
* Disable a GPIO interrupt for specified pin number
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void cxd56_gpioint_disable(uint32_t pin);
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_invert
|
|
*
|
|
* Description:
|
|
* Invert polarity of a GPIO interrupt for specified pin number
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void cxd56_gpioint_invert(uint32_t pin);
|
|
|
|
/****************************************************************************
|
|
* Name: cxd56_gpioint_status
|
|
*
|
|
* Description:
|
|
* Get a gpio interrupt status
|
|
*
|
|
* Returned Value:
|
|
* OK on success; A negated errno value on failure.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int cxd56_gpioint_status(uint32_t pin, cxd56_gpioint_status_t *stat);
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __ARCH_ARM_SRC_CXD56XX_CXD56_GPIOINT_H */
|