/************************************************************************************ * arch/avr/src/at91uc3b/at91uc3_internal.h * * Copyright (C) 2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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_AVR32_AT91UC3_INTERNAL_H #define __ARCH_AVR_SRC_AVR32_AT91UC3_INTERNAL_H /************************************************************************************ * Included Files ************************************************************************************/ #include #include #include /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Bit-encoded input to at91uc3_configgpio() ****************************************/ /* 16-bit Encoding: * PERIPHERAL: FMMI UXXG PPPB BBBB with G=0 * GPIO: FMMI UVOG PPPB BBBB with G=1 */ /* Glitch Filter Enable: * F... .... .... .... */ #define GPIO_GLITCH (1 << 15) /* Bit 15: Glitch filter enable */ /* Interrupt modes (valid only if GPIO_INTR==1) * .MM. .... .... .... */ #define GPIO_INTMODE_SHIFT (13) /* Bits 13-14: Interrupt mode */ #define GPIO_INTMODE_MASK (3 << GPIO_INTMODE_SHIFT) # define GPIO_INTMODE_BOTH (0 << GPIO_INTMODE_SHIFT) # define GPIO_INTMODE_RISING (1 << GPIO_INTMODE_SHIFT) # define GPIO_INTMODE_FALLING (2 << GPIO_INTMODE_SHIFT) # define GPIO_IMR0 (1 << GPIO_INTMODE_SHIFT) # define GPIO_IMR1 (2 << GPIO_INTMODE_SHIFT) /* Interrupt enable * ...I .... .... .... */ #define GPIO_INTR (1 << 12) /* Bit 12: Interrupt enable */ /* Pull-up enable * .... U... .... .... */ #define GPIO_PULLUP (1 << 11) /* Bit 11: Pull-up enable */ /* Output value (Valid only if GPIO_ENABLE and GPIO_OUTPUT) * .... .V... .... .... */ #define GPIO_VALUE (1 << 10) /* Bit 10: Output value */ #define GPIO_HIGH GPIO_VALUE #define GPIO_LOW (0) /* Input/Ouptut (Valid only if GPIO_ENABLE) * .... ..O. .... .... */ #define GPIO_OUTPUT (1 << 9) /* Bit 9: Output driver enable */ #define GPIO_INPUT (0) /* Peripheral MUX setting (valid only if GPIO_PERIPH) * .... .XX. .... .... */ #define GPIO_FUNC_SHIFT (9) /* Bits 9-10: Peripheral MUX */ #define GPIO_FUNC_MASK (3 << GPIO_FUNC_SHIFT) # define GPIO_FUNCA (0 << GPIO_FUNC_SHIFT) /* PMR0=0 PMR1=0 */ # define GPIO_FUNCB (1 << GPIO_FUNC_SHIFT) /* PMR0=1 PMR1=0 */ # define GPIO_FUNCC (2 << GPIO_FUNC_SHIFT) /* PMR0=0 PMR1=1 */ # define GPIO_FUNCD (3 << GPIO_FUNC_SHIFT) /* PMR0=1 PMR1=1 */ # define GPIO_PMR0 (1 << GPIO_FUNC_SHIFT) # define GPIO_PMR1 (2 << GPIO_FUNC_SHIFT) /* GPIO Enable (1) or Peripheral Enable (0) * .... .... .... .... .... ...G .... .... */ #define GPIO_ENABLE (1 << 8) /* Bit 8: GPIO enable */ #define GPIO_PERIPH (0) /* Port Number * .... .... .... .... .... .... PPP. .... */ #define GPIO_PORT_SHIFT (5) /* Bits 5-7: Port number */ #define GPIO_PORT_MASK (7 << GPIO_PORT_SHIFT) # define GPIO_PORTA (0 << GPIO_PORT_SHIFT) # define GPIO_PORTB (1 << GPIO_PORT_SHIFT) # define GPIO_PORTC (2 << GPIO_PORT_SHIFT) # define GPIO_PORTD (3 << GPIO_PORT_SHIFT) # define GPIO_PORTE (4 << GPIO_PORT_SHIFT) /* Pin number: * .... .... .... .... .... .... ...B BBBB */ #define GPIO_PIN_SHIFT (0) /* Bits 0-4: Port number */ #define GPIO_PIN_MASK (0x1f << GPIO_PIN_SHIFT) /************************************************************************************ * 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//up_boot.c. * ************************************************************************************/ EXTERN void up_boardinitialize(void); /************************************************************************************ * Name: at91uc3_configgpio * * Description: * Configure a GPIO pin based on bit-encoded description of the pin. * ************************************************************************************/ EXTERN int at91uc3_configgpio(uint16_t cfgset); /************************************************************************************ * Name: at91uc3_gpiowrite * * Description: * Write one or zero to the selected GPIO pin * ************************************************************************************/ EXTERN void at91uc3_gpiowrite(uint16_t pinset, bool value); /************************************************************************************ * Name: at91uc3_gpioread * * Description: * Read one or zero from the selected GPIO pin * ************************************************************************************/ EXTERN bool at91uc3_gpioread(uint16_t pinset); #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __ARCH_AVR_SRC_AVR32_AT91UC3_INTERNAL_H */