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/****************************************************************************
* arch/arm/src/lpc17xx/lpc17_gpiodbg.c
*
* Copyright (C) 2010-2011 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <debug.h>
#include <arch/irq.h>
#include "up_arch.h"
#include "chip.h"
#include "lpc17_gpio.h"
#include "lpc17_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef CONFIG_DEBUG
# undef CONFIG_DEBUG_GPIO
#endif
#ifdef CONFIG_DEBUG_GPIO
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: lpc17_pinsel
*
* Description:
* Get the address of the PINSEL register corresponding to this port and
* pin number.
*
****************************************************************************/
static uint32_t lpc17_pinsel(unsigned int port, unsigned int pin)
{
if (pin < 16)
{
return g_lopinsel[port];
}
else
{
return g_hipinsel[port];
}
}
/****************************************************************************
* Name: lpc17_pinmode
*
* Description:
* Get the address of the PINMODE register corresponding to this port and
* pin number.
*
****************************************************************************/
static uint32_t lpc17_pinmode(unsigned int port, unsigned int pin)
{
if (pin < 16)
{
return g_lopinmode[port];
}
else
{
return g_hipinmode[port];
}
}
/****************************************************************************
* Global Functions
****************************************************************************/
/****************************************************************************
* Function: lpc17_dumpgpio
*
* Description:
* Dump all GPIO registers associated with the provided base address
*
****************************************************************************/
int lpc17_dumpgpio(uint16_t pinset, const char *msg)
{
irqstate_t flags;
uint32_t base;
uint32_t pinsel;
uint32_t pinmode;
unsigned int port;
unsigned int pin;
/* Get the base address associated with the GPIO port */
port = (pinset & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
pin = (pinset & GPIO_PIN_MASK) >> GPIO_PIN_SHIFT;
pinsel = lpc17_pinsel(port, pin);
pinmode = lpc17_pinmode(port, pin);
/* The following requires exclusive access to the GPIO registers */
flags = irqsave();
lldbg("GPIO%c pinset: %08x -- %s\n",
port + '0', pinset, msg);
lldbg(" PINSEL[%08x]: %08x PINMODE[%08x]: %08x ODMODE[%08x]: %08x\n",
pinsel, pinsel ? getreg32(pinsel) : 0,
pinmode, pinmode ? getreg32(pinmode) : 0,
g_odmode[port], getreg32(g_odmode[port]));
base = g_fiobase[port];
lldbg(" FIODIR[%08x]: %08x FIOMASK[%08x]: %08x FIOPIN[%08x]: %08x\n",
base+LPC17_FIO_DIR_OFFSET, getreg32(base+LPC17_FIO_DIR_OFFSET),
base+LPC17_FIO_MASK_OFFSET, getreg32(base+LPC17_FIO_MASK_OFFSET),
base+LPC17_FIO_PIN_OFFSET, getreg32(base+LPC17_FIO_PIN_OFFSET));
base = g_intbase[port];
lldbg(" IOINTSTATUS[%08x]: %08x INTSTATR[%08x]: %08x INSTATF[%08x]: %08x\n",
LPC17_GPIOINT_IOINTSTATUS, getreg32(LPC17_GPIOINT_IOINTSTATUS),
base+LPC17_GPIOINT_INTSTATR_OFFSET, getreg32(base+LPC17_GPIOINT_INTSTATR_OFFSET),
base+LPC17_GPIOINT_INTSTATF_OFFSET, getreg32(base+LPC17_GPIOINT_INTSTATF_OFFSET));
lldbg(" INTENR[%08x]: %08x INTENF[%08x]: %08x\n",
base+LPC17_GPIOINT_INTENR_OFFSET, getreg32(base+LPC17_GPIOINT_INTENR_OFFSET),
base+LPC17_GPIOINT_INTENF_OFFSET, getreg32(base+LPC17_GPIOINT_INTENF_OFFSET));
irqrestore(flags);
return OK;
}
#endif /* CONFIG_DEBUG_GPIO */
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