191 lines
6.5 KiB
C
191 lines
6.5 KiB
C
/****************************************************************************
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* arch/arm/src/lpc17xx/lpc17_gpiodbg.c
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*
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* Copyright (C) 2010-2011, 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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <arch/irq.h>
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#include "up_arch.h"
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#include "chip.h"
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#include "lpc17_gpio.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef CONFIG_DEBUG
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# undef CONFIG_DEBUG_GPIO
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#endif
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#ifdef CONFIG_DEBUG_GPIO
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: lpc17_pinsel
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*
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* Description:
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* Get the address of the PINSEL register corresponding to this port and
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* pin number.
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*
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****************************************************************************/
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#ifdef LPC176x
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static uint32_t lpc17_pinsel(unsigned int port, unsigned int pin)
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{
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if (pin < 16)
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{
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return g_lopinsel[port];
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}
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else
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{
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return g_hipinsel[port];
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}
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}
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#endif /* LPC176x */
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/****************************************************************************
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* Name: lpc17_pinmode
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*
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* Description:
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* Get the address of the PINMODE register corresponding to this port and
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* pin number.
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*
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****************************************************************************/
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#ifdef LPC176x
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static uint32_t lpc17_pinmode(unsigned int port, unsigned int pin)
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{
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if (pin < 16)
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{
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return g_lopinmode[port];
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}
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else
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{
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return g_hipinmode[port];
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}
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}
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#endif /* LPC176x */
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/****************************************************************************
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* Global Functions
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****************************************************************************/
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/****************************************************************************
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* Function: lpc17_dumpgpio
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*
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* Description:
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* Dump all GPIO registers associated with the provided base address
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*
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****************************************************************************/
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int lpc17_dumpgpio(lpc17_pinset_t pinset, const char *msg)
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{
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irqstate_t flags;
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uint32_t base;
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#if defined(LPC176x)
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uint32_t pinsel;
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uint32_t pinmode;
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#elif defined(LPC178x)
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uint32_t iocon;
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#endif /* LPC176x */
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unsigned int port;
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unsigned int pin;
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/* Get the base address associated with the GPIO port */
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port = (pinset & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
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pin = (pinset & GPIO_PIN_MASK) >> GPIO_PIN_SHIFT;
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#if defined(LPC176x)
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pinsel = lpc17_pinsel(port, pin);
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pinmode = lpc17_pinmode(port, pin);
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#elif defined(LPC178x)
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iocon = LPC17_IOCON_P(port, pin);
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#endif /* LPC176x */
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/* The following requires exclusive access to the GPIO registers */
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flags = irqsave();
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lldbg("GPIO%c pin%d (pinset: %08x) -- %s\n",
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port + '0', pin, pinset, msg);
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#if defined(LPC176x)
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lldbg(" PINSEL[%08x]: %08x PINMODE[%08x]: %08x ODMODE[%08x]: %08x\n",
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pinsel, pinsel ? getreg32(pinsel) : 0,
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pinmode, pinmode ? getreg32(pinmode) : 0,
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g_odmode[port], getreg32(g_odmode[port]));
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#elif defined(LPC178x)
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lldbg(" IOCON[%08x]: %08x\n", iocon, getreg32(iocon));
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#endif
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base = g_fiobase[port];
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lldbg(" FIODIR[%08x]: %08x FIOMASK[%08x]: %08x FIOPIN[%08x]: %08x\n",
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base+LPC17_FIO_DIR_OFFSET, getreg32(base+LPC17_FIO_DIR_OFFSET),
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base+LPC17_FIO_MASK_OFFSET, getreg32(base+LPC17_FIO_MASK_OFFSET),
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base+LPC17_FIO_PIN_OFFSET, getreg32(base+LPC17_FIO_PIN_OFFSET));
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base = g_intbase[port];
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lldbg(" IOINTSTATUS[%08x]: %08x INTSTATR[%08x]: %08x INSTATF[%08x]: %08x\n",
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LPC17_GPIOINT_IOINTSTATUS, getreg32(LPC17_GPIOINT_IOINTSTATUS),
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base+LPC17_GPIOINT_INTSTATR_OFFSET, getreg32(base+LPC17_GPIOINT_INTSTATR_OFFSET),
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base+LPC17_GPIOINT_INTSTATF_OFFSET, getreg32(base+LPC17_GPIOINT_INTSTATF_OFFSET));
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lldbg(" INTENR[%08x]: %08x INTENF[%08x]: %08x\n",
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base+LPC17_GPIOINT_INTENR_OFFSET, getreg32(base+LPC17_GPIOINT_INTENR_OFFSET),
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base+LPC17_GPIOINT_INTENF_OFFSET, getreg32(base+LPC17_GPIOINT_INTENF_OFFSET));
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irqrestore(flags);
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return OK;
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}
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#endif /* CONFIG_DEBUG_GPIO */
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