218 lines
6.5 KiB
C
218 lines
6.5 KiB
C
/****************************************************************************
|
|
* arch/arm/src/sama5/sam_pio.h
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __ARCH_ARM_SRC_SAMA5_SAM_PIO_H
|
|
#define __ARCH_ARM_SRC_SAMA5_SAM_PIO_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <arch/sama5/chip.h>
|
|
|
|
#include "hardware/sam_memorymap.h"
|
|
|
|
/* Definitions and types customized for each SAMA5Dx family */
|
|
|
|
#if defined(ATSAMA5D2)
|
|
# include "sama5d2x_pio.h"
|
|
#elif defined(ATSAMA5D3) || defined(ATSAMA5D4)
|
|
# include "sama5d3x4x_pio.h"
|
|
#else
|
|
# error Unrecognized SAMA5 architecture
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* Lookup for non-secure PIOs */
|
|
|
|
extern const uintptr_t g_piobase[SAM_NPIO];
|
|
#define sam_pion_vbase(n) (g_piobase[(n)])
|
|
|
|
#ifdef ATSAMA5D2
|
|
/* Lookup for secrure PIOs */
|
|
|
|
extern const uintptr_t g_spiobase[SAM_NPIO];
|
|
# define sam_spion_vbase(n) (g_spiobase[(n)])
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Inline Functions
|
|
****************************************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: sam_pioirqinitialize
|
|
*
|
|
* Description:
|
|
* Initialize logic to support a second level of interrupt decoding for PIO
|
|
* pins.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SAMA5_PIO_IRQ
|
|
void sam_pioirqinitialize(void);
|
|
#else
|
|
# define sam_pioirqinitialize()
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: sam_configpio
|
|
*
|
|
* Description:
|
|
* Configure a PIO pin based on bit-encoded description of the pin.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int sam_configpio(pio_pinset_t cfgset);
|
|
|
|
/****************************************************************************
|
|
* Name: sam_piowrite
|
|
*
|
|
* Description:
|
|
* Write one or zero to the selected PIO pin
|
|
*
|
|
****************************************************************************/
|
|
|
|
void sam_piowrite(pio_pinset_t pinset, bool value);
|
|
|
|
/****************************************************************************
|
|
* Name: sam_pioread
|
|
*
|
|
* Description:
|
|
* Read one or zero from the selected PIO pin
|
|
*
|
|
****************************************************************************/
|
|
|
|
bool sam_pioread(pio_pinset_t pinset);
|
|
|
|
/****************************************************************************
|
|
* Name: sam_pioirq
|
|
*
|
|
* Description:
|
|
* Configure an interrupt for the specified PIO pin.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SAMA5_PIO_IRQ
|
|
void sam_pioirq(pio_pinset_t pinset);
|
|
#else
|
|
# define sam_pioirq(pinset)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: sam_pioirqenable
|
|
*
|
|
* Description:
|
|
* Enable the interrupt for specified PIO IRQ
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SAMA5_PIO_IRQ
|
|
void sam_pioirqenable(int irq);
|
|
#else
|
|
# define sam_pioirqenable(irq)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: sam_pioirqdisable
|
|
*
|
|
* Description:
|
|
* Disable the interrupt for specified PIO IRQ
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_SAMA5_PIO_IRQ
|
|
void sam_pioirqdisable(int irq);
|
|
#else
|
|
# define sam_pioirqdisable(irq)
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: sam_pio_forceclk
|
|
*
|
|
* Description:
|
|
* Enable PIO clocking.
|
|
* This logic is overly conservative and does not enable PIO clocking unless
|
|
* necessary (PIO input selected, glitch/filtering enable, or PIO interrupts
|
|
* enabled). There are, however, certain conditions were we may want for
|
|
* force the PIO clock to be enabled. An example is reading the input value
|
|
* from an open drain output.
|
|
*
|
|
* The PIO automatic enable/disable logic is not smart enough enough to know
|
|
* about these cases.
|
|
* For those cases, sam_pio_forceclk() is provided.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void sam_pio_forceclk(pio_pinset_t pinset, bool enable);
|
|
|
|
/****************************************************************************
|
|
* Function: sam_dumppio
|
|
*
|
|
* Description:
|
|
* Dump all PIO registers associated with the base address of the provided
|
|
* pinset.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_DEBUG_GPIO_INFO
|
|
int sam_dumppio(uint32_t pinset, const char *msg);
|
|
#else
|
|
# define sam_dumppio(p,m)
|
|
#endif
|
|
|
|
#undef EXTERN
|
|
#if defined(__cplusplus)
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __ARCH_ARM_SRC_SAMA5_SAM_PIO_H */
|