061728b440
arm: sam34: codestyle fixes
* arm: sam34: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: sama5: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Approved-by: Gregory Nutt <gnutt@nuttx.org>
142 lines
5.8 KiB
C
142 lines
5.8 KiB
C
/****************************************************************************
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* boards/arm/sam34/sam4s-xplained/src/sam4s-xplained.h
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*
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* Copyright (C) 2009-2011, 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __BOARDS_ARM_SAM4S_XPLAINED_SRC_SAM4S_XPLAINED_H
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#define __BOARDS_ARM_SAM4S_XPLAINED_SRC_SAM4S_XPLAINED_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/compiler.h>
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#include <stdint.h>
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#include <arch/irq.h>
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#include <nuttx/irq.h>
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#include "hardware/sam_pinmap.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* There are four LEDs on board the SAM4S Xplained board, two of these can be
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* controlled by software in the SAM4S:
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*
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* LED GPIO
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* ---------------- -----
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* D9 Yellow LED PC10
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* D10 Yellow LED PC17
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*
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* Both can be illuminated by driving the GPIO output to ground (low).
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*
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* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is defined in
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* include/board.h and src/up_leds.c. The LEDs are used to encode OS-related
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* events as follows:
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*
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* SYMBOL Meaning LED state
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* D9 D10
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* ------------------- ----------------------- -------- --------
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* LED_STARTED NuttX has been started OFF OFF
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* LED_HEAPALLOCATE Heap has been allocated OFF OFF
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* LED_IRQSENABLED Interrupts enabled OFF OFF
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* LED_STACKCREATED Idle stack created ON OFF
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* LED_INIRQ In an interrupt No change
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* LED_SIGNAL In a signal handler No change
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* LED_ASSERTION An assertion failed No change
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* LED_PANIC The system has crashed OFF Blinking
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* LED_IDLE MCU is is sleep mode Not used
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*
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* Thus if D9 is statically on, NuttX has successfully booted and is,
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* apparently, running normmally. If D10 is flashing at approximately
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* 2Hz, then a fatal error has been detected and the system has halted.
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*/
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#define GPIO_D9 (GPIO_OUTPUT | GPIO_CFG_PULLUP | GPIO_OUTPUT_SET | \
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GPIO_PORT_PIOC | GPIO_PIN10)
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#define GPIO_D10 (GPIO_OUTPUT | GPIO_CFG_PULLUP | GPIO_OUTPUT_SET | \
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GPIO_PORT_PIOC | GPIO_PIN17)
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/* Mechanical buttons:
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*
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* The SAM4S Xplained has two mechanical buttons.
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* One button is the RESET button connected to the SAM4S reset line and the
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* other is a generic user configurable button labeled BP2.
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* When a button is pressed it will drive the I/O line to GND.
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*
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* PA5 BP2
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*/
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#define GPIO_BP2 (GPIO_INPUT | GPIO_CFG_PULLUP | GPIO_CFG_DEGLITCH | \
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GPIO_INT_BOTHEDGES | GPIO_PORT_PIOA | GPIO_PIN5)
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#define IRQ_BP2 SAM_IRQ_PA5
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/* SRAM Enable. EBI_NLB PC16. Active=low; Standby=high */
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#define GPIO_EBI_NLB (GPIO_OUTPUT | GPIO_CFG_PULLUP | GPIO_OUTPUT_SET | \
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GPIO_PORT_PIOC | GPIO_PIN16)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public data
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_sram_initialize
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*
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* Description:
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* Configure and enable SRAM on board the SAM4S Xplained
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*
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****************************************************************************/
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#ifdef CONFIG_SAM34_EXTSRAM0
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void sam_sram_initialize(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_ARM_SAM34_SAM4S_XPLAINED_SRC_SAM4S_XPLAINED_H */
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