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Diffstat (limited to 'nuttx/arch/avr/src/atmega/atmega_internal.h')
-rw-r--r-- | nuttx/arch/avr/src/atmega/atmega_internal.h | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/nuttx/arch/avr/src/atmega/atmega_internal.h b/nuttx/arch/avr/src/atmega/atmega_internal.h new file mode 100644 index 000000000..6a4b2056c --- /dev/null +++ b/nuttx/arch/avr/src/atmega/atmega_internal.h @@ -0,0 +1,245 @@ +/**************************************************************************** + * 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: usart_reset + * + * Description: + * Reset a USART. + * + ****************************************************************************/ + +EXTERN void usart_reset(uintptr_t usart_base); + +/**************************************************************************** + * Name: usart_configure + * + * Description: + * Configure a USART as a RS-232 UART. + * + ****************************************************************************/ + +void usart_configure(uintptr_t usart_base, uint32_t baud, unsigned int parity, + unsigned int nbits, bool stop2); + +/**************************************************************************** + * 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 */ + |