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/****************************************************************************
* arch/avr/src/atmega/atmega_internal.h
*
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 NuttX 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_AVR_SRC_ATMEGA_ATMEGA_INTERNAL_H
#define __ARCH_AVR_SRC_ATMEGA_ATMEGA_INTERNAL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "atmega_config.h"
#ifdef CONFIG_AVR_GPIOIRQ
# include <nuttx/irq.h>
#endif
#include <stdint.h>
#include <stdbool.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Bit-encoded input to atmega_configgpio() ********************************/
# warning "Missing definitions"
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C" {
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: up_clkinit
*
* Description:
* Initialiaze clock/PLL settings per the definitions in the board.h file.
*
****************************************************************************/
EXTERN void up_clkinitialize(void);
/****************************************************************************
* Name: usart0_reset and usart1_reset
*
* Description:
* Reset USART0 or USART1.
*
****************************************************************************/
EXTERN void usart0_reset(void);
EXTERN void usart1_reset(void);
/****************************************************************************
* Name: usart0_configure and usart1_configure
*
* Description:
* Configure USART0 or USART1.
*
****************************************************************************/
EXTERN void usart0_configure(void);
EXTERN void usart1_configure(void);
/****************************************************************************
* Name: up_consoleinit
*
* Description:
* Initialize a console for debug output. This function is called very
* early in the intialization sequence to configure the serial console
* uart (only).
*
****************************************************************************/
EXTERN void up_consoleinit(void);
/****************************************************************************
* Name: up_boardinit
*
* Description:
* This function must be provided by the board-specific logic in the
* directory configs/<board-name>/up_boot.c.
*
****************************************************************************/
EXTERN void up_boardinitialize(void);
/****************************************************************************
* Name: atmega_configgpio
*
* Description:
* Configure a GPIO pin based on bit-encoded description of the pin.
*
****************************************************************************/
EXTERN int atmega_configgpio(uint16_t cfgset);
/****************************************************************************
* Name: atmega_gpiowrite
*
* Description:
* Write one or zero to the selected GPIO pin
*
****************************************************************************/
EXTERN void atmega_gpiowrite(uint16_t pinset, bool value);
/****************************************************************************
* Name: atmega_gpioread
*
* Description:
* Read one or zero from the selected GPIO pin
*
****************************************************************************/
EXTERN bool atmega_gpioread(uint16_t pinset);
/****************************************************************************
* Name: gpio_irqinitialize
*
* Description:
* Initialize all vectors to the unexpected interrupt handler
*
* Configuration Notes:
* Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the
* overall GPIO IRQ feature.
*
* Assumptions:
* Called during the early boot sequence before global interrupts have
* been enabled.
*
****************************************************************************/
#ifdef CONFIG_AVR_GPIOIRQ
EXTERN void weak_function gpio_irqinitialize(void);
#endif
/****************************************************************************
* Name: gpio_irqattach
*
* Description:
* Attach in GPIO interrupt to the provide 'isr'
*
* Configuration Notes:
* Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the
* overall GPIO IRQ feature.
*
****************************************************************************/
#ifdef CONFIG_AVR_GPIOIRQ
EXTERN int gpio_irqattach(int irq, xcpt_t newisr, xcpt_t *oldisr);
#endif
/****************************************************************************
* Name: gpio_irqenable
*
* Description:
* Enable the GPIO IRQ specified by 'irq'
*
* Configuration Notes:
* Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the
* overall GPIO IRQ feature.
*
****************************************************************************/
#ifdef CONFIG_AVR_GPIOIRQ
EXTERN void gpio_irqenable(int irq);
#endif
/*****************************************************************************
* Name: gpio_irqdisable
*
* Description:
* Disable the GPIO IRQ specified by 'irq'
*
* Configuration Notes:
* Configuration CONFIG_AVR_GPIOIRQ must be selected to enable the
* overall GPIO IRQ feature.
*
****************************************************************************/
#ifdef CONFIG_AVR_GPIOIRQ
EXTERN void gpio_irqdisable(int irq);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_AVR_SRC_ATMEGA_ATMEGA_INTERNAL_H */
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