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/************************************************************************************
* configs/sam4l-xplained/src/sam4l-xplained.h
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 __CONFIGS_SAM4L_XPLAINED_SRC_SAM4L_XPLAINED_H
#define __CONFIGS_SAM4L_XPLAINED_SRC_SAM4L_XPLAINED_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <nuttx/compiler.h>
#include <stdint.h>
#include <arch/irq.h>
#include <nuttx/irq.h>
#include "chip/sam_pinmap.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* LEDs: There are three LEDs on board the SAM4L Xplained Pro board: The EDBG
* controls two of the LEDs, a power LED and a status LED. There is only
* one user controllable LED, a yellow LED labeled LED0 near the SAM4L USB
* connector.
*
* This LED is controlled by PC07 and LED0 can be activated by driving the
* PC07 to GND.
*
* When CONFIG_ARCH_LEDS is defined in the NuttX configuration, NuttX will
* control LED0 as follows:
*
* SYMBOL Meaning LED0
* ------------------- ----------------------- ------
* LED_STARTED NuttX has been started OFF
* LED_HEAPALLOCATE Heap has been allocated OFF
* LED_IRQSENABLED Interrupts enabled OFF
* LED_STACKCREATED Idle stack created ON
* LED_INIRQ In an interrupt N/C
* LED_SIGNAL In a signal handler N/C
* LED_ASSERTION An assertion failed N/C
* LED_PANIC The system has crashed FLASH
*
* Thus is LED0 is statically on, NuttX has successfully booted and is,
* apparently, running normmally. If LED0 is flashing at approximately
* 2Hz, then a fatal error has been detected and the system has halted.
*/
#define GPIO_LED0 (GPIO_OUTPUT | GPIO_PULL_NONE | GPIO_OUTPUT_SET | \
GPIO_PORTC | GPIO_PIN7)
/* QTouch button: The SAM4L Xplained Pro kit has one QTouch button. The connection
* to the SAM4L is:
*
* PC13 CATB_SENSE15
* PC14 CATB_DIS
*/
/* Mechanical buttons:
*
* The SAM4L Xplained Pro contains two mechanical buttons. One button is the
* RESET button connected to the SAM4L reset line and the other is a generic user
* configurable button. When a button is pressed it will drive the I/O line to GND.
*
* PC24 SW0
*/
#define GPIO_SW0 (GPIO_INTERRUPT | GPIO_PULL_UP | GPIO_GLITCH_FILTER | \
GPIO_PORTC | GPIO_PIN24)
#define IRQ_SW0 SAM_IRQ_PC24
/* I/O1
*
* Support for the microSD card slot on the I/O1 module. The I/O1 requires
* SPI support and two GPIOs. These two GPIOs will vary if the
*
*
* PIN EXT1 EXT2 Description
* --- -------------- --------------- -------------------------------------
* 15 PC03 SPI/NPCS0 PB11 SPI/NPCS2 Active low chip select OUTPUT, pulled
* high on board.
* 10 PB13 SPI/NPCS1 10 PC09 GPIO Active low card detect INPUT, must
* use internal pull-up.
*/
#ifdef CONFIG_SAM4L_XPLAINED_IOMODULE
# ifndef CONFIG_SAM34_SPI
# error CONFIG_SAM34_SPI is required to use the I/O1 module
# endif
# if defined(CONFIG_SAM4L_XPLAINED_IOMODULE_EXT1)
# define GPIO_SD_CD (GPIO_INTERRUPT | GPIO_INT_CHANGE | GPIO_PULL_UP | \
GPIO_GLITCH_FILTER | GPIO_PORTB | GPIO_PIN13)
# define IRQ_SD_CD SAM_IRQ_PB13
# define GPIO_SD_CS (GPIO_OUTPUT | GPIO_PULL_NONE | GPIO_OUTPUT_SET | \
GPIO_PORTC | GPIO_PIN3)
# define SD_CSNO 0
# elif defined(CONFIG_SAM4L_XPLAINED_IOMODULE_EXT2)
# define GPIO_CD (GPIO_INTERRUPT | GPIO_INT_CHANGE | GPIO_PULL_UP | \
GPIO_GLITCH_FILTER | GPIO_PORTC | GPIO_PIN9)
# define IRQ_CD SAM_IRQ_PC9
# define GPIO_SD_CS (GPIO_OUTPUT | GPIO_PULL_NONE | GPIO_OUTPUT_SET | \
GPIO_PORTB | GPIO_PIN11)
# define SD_CSNO 2
# else
# error Which connector is the I/O1 module installed in?
# endif
#endif
/************************************************************************************
* Public Types
************************************************************************************/
/************************************************************************************
* Public data
************************************************************************************/
#ifndef __ASSEMBLY__
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: sam_spiinitialize
*
* Description:
* Called to configure SPI chip select GPIO pins for the SAM3U-EK board.
*
************************************************************************************/
void weak_function sam_spiinitialize(void);
/************************************************************************************
* Name: sam_sdinitialize
*
* Description:
* Initialize the SPI-based SD card. Requires CONFIG_SAM4L_XPLAINED_IOMODULE=y,
* CONFIG_DISABLE_MOUNTPOINT=n, CONFIG_MMCSD=y, and CONFIG_SAM34_SPI=y
*
************************************************************************************/
#ifdef CONFIG_SAM4L_XPLAINED_IOMODULE
int sam_sdinitialize(int minor);
#endif
/************************************************************************************
* Name: up_ledinit
************************************************************************************/
#ifdef CONFIG_ARCH_LEDS
void up_ledinit(void);
#endif
#endif /* __ASSEMBLY__ */
#endif /* __CONFIGS_SAM4L_XPLAINED_SRC_SAM4L_XPLAINED_H */
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