115 lines
3.6 KiB
C
115 lines
3.6 KiB
C
/****************************************************************************
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* arch/arm/src/kinetis/kinetis_pindump.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <assert.h>
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#include <debug.h>
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#include <nuttx/irq.h>
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#include "arm_arch.h"
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#include "kinetis.h"
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#include "hardware/kinetis_gpio.h"
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#include "hardware/kinetis_port.h"
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#ifdef CONFIG_DEBUG_GPIO_INFO
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* Port letters for prettier debug output */
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static const char g_portchar[KINETIS_NPORTS] =
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{
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#if KINETIS_NPORTS > 9
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# error "Additional support required for this number of GPIOs"
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#elif KINETIS_NPORTS > 8
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I'
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#elif KINETIS_NPORTS > 7
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'
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#elif KINETIS_NPORTS > 6
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'A', 'B', 'C', 'D', 'E', 'F', 'G'
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#elif KINETIS_NPORTS > 5
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'A', 'B', 'C', 'D', 'E', 'F'
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#elif KINETIS_NPORTS > 4
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'A', 'B', 'C', 'D', 'E'
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#elif KINETIS_NPORTS > 3
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'A', 'B', 'C', 'D'
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#elif KINETIS_NPORTS > 2
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'A', 'B', 'C'
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#elif KINETIS_NPORTS > 1
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'A', 'B'
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#elif KINETIS_NPORTS > 0
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'A'
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#else
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# error "Bad number of GPIOs"
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#endif
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};
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Function: kinetis_pindump
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*
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* Description:
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* Dump all GPIO registers associated with the provided pin description
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* along with a descriptive message.
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*
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****************************************************************************/
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void kinetis_pindump(uint32_t pinset, const char *msg)
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{
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irqstate_t flags;
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uintptr_t base;
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int port;
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/* Decode the port and pin. Use the port number to get the GPIO base
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* address.
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*/
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port = (pinset & _PIN_PORT_MASK) >> _PIN_PORT_SHIFT;
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DEBUGASSERT((unsigned)port < KINETIS_NPORTS);
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base = KINETIS_GPIO_BASE(port);
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/* The following requires exclusive access to the GPIO registers */
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flags = enter_critical_section();
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gpioinfo("GPIO%c pinset: %08x base: %08x -- %s\n",
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g_portchar[port], pinset, base, msg);
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gpioinfo(" PDOR: %08x PDIR: %08x PDDR: %08x\n",
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getreg32(base + KINETIS_GPIO_PDOR_OFFSET),
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getreg32(base + KINETIS_GPIO_PDIR_OFFSET),
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getreg32(base + KINETIS_GPIO_PDDR_OFFSET));
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leave_critical_section(flags);
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}
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#endif /* CONFIG_DEBUG_GPIO_INFO */
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