/****************************************************************************
* arch/arm/src/tiva/tiva_dumpgpio.c
*
* Copyright (C) 2009-2010 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 <nuttx/arch.h>
#include "up_arch.h"
#include "chip.h"
#include "tiva_gpio.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/* NOTE: this is duplicated in tiva_gpio.c */
static const uintptr_t g_gpiobase[TIVA_NPORTS] =
{
#if TIVA_NPORTS > 0
TIVA_GPIOA_BASE
#endif
#if TIVA_NPORTS > 1
, TIVA_GPIOB_BASE
#endif
#if TIVA_NPORTS > 2
, TIVA_GPIOC_BASE
#endif
#if TIVA_NPORTS > 3
, TIVA_GPIOD_BASE
#endif
#if TIVA_NPORTS > 4
, TIVA_GPIOE_BASE
#endif
#if TIVA_NPORTS > 5
, TIVA_GPIOF_BASE
#endif
#if TIVA_NPORTS > 6
, TIVA_GPIOG_BASE
#endif
#if TIVA_NPORTS > 7
, TIVA_GPIOH_BASE
#endif
#if TIVA_NPORTS > 8
, TIVA_GPIOJ_BASE
#endif
#if TIVA_NPORTS > 9
, TIVA_GPIOK_BASE
#endif
#if TIVA_NPORTS > 10
, TIVA_GPIOL_BASE
#endif
#if TIVA_NPORTS > 11
, TIVA_GPIOM_BASE
#endif
#if TIVA_NPORTS > 12
, TIVA_GPION_BASE
#endif
#if TIVA_NPORTS > 13
, TIVA_GPIOP_BASE
#endif
#if TIVA_NPORTS > 14
, TIVA_GPIOQ_BASE
#endif
};
static const char g_portchar[TIVA_NPORTS] =
{
#if TIVA_NPORTS > 0
'A'
#endif
#if TIVA_NPORTS > 1
, 'B'
#endif
#if TIVA_NPORTS > 2
, 'C'
#endif
#if TIVA_NPORTS > 3
, 'D'
#endif
#if TIVA_NPORTS > 4
, 'E'
#endif
#if TIVA_NPORTS > 5
, 'F'
#endif
#if TIVA_NPORTS > 6
, 'G'
#endif
#if TIVA_NPORTS > 7
, 'H'
#endif
#if TIVA_NPORTS > 8
, 'J'
#endif
#if TIVA_NPORTS > 9
, 'K'
#endif
#if TIVA_NPORTS > 10
, 'L'
#endif
#if TIVA_NPORTS > 11
, 'M'
#endif
#if TIVA_NPORTS > 12
, 'N'
#endif
#if TIVA_NPORTS > 13
, 'P'
#endif
#if TIVA_NPORTS > 14
, 'Q'
#endif
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: tiva_gpiobaseaddress
*
* Description:
* Given a GPIO enumeration value, return the base address of the
* associated GPIO registers.
*
****************************************************************************/
static inline uintptr_t tiva_gpiobaseaddress(int port)
{
return port < TIVA_NPORTS ? g_gpiobase[port] : 0;
}
/****************************************************************************
* Name: tiva_gpioport
*
* Description:
* Given a GPIO enumeration value, return the base address of the
* associated GPIO registers.
*
****************************************************************************/
static inline uint8_t tiva_gpioport(int port)
{
return port < TIVA_NPORTS ? g_portchar[port] : '?';
}
/****************************************************************************
* Global Functions
****************************************************************************/
/****************************************************************************
* Function: tiva_dumpgpio
*
* Description:
* Dump all GPIO registers associated with the provided base address
*
****************************************************************************/
int tiva_dumpgpio(uint32_t pinset, const char *msg)
{
#ifdef CONFIG_DEBUG
irqstate_t flags;
unsigned int port = (pinset & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
uintptr_t base;
uint32_t rcgc2;
bool enabled;
/* Get the base address associated with the GPIO port */
base = tiva_gpiobaseaddress(port);
DEBUGASSERT(base != 0);
/* The following requires exclusive access to the GPIO registers */
flags = irqsave();
rcgc2 = getreg32(TIVA_SYSCON_RCGC2);
enabled = ((rcgc2 & SYSCON_RCGC2_GPIO(port)) != 0);
lldbg("GPIO%c pinset: %08x base: %08x -- %s\n",
tiva_gpioport(port), pinset, base, msg);
lldbg(" RCGC2: %08x (%s)\n",
rcgc2, enabled ? "enabled" : "disabled" );
/* Don't bother with the rest unless the port is enabled */
if (enabled)
{
lldbg(" AFSEL: %02x DEN: %02x DIR: %02x DATA: %02x\n",
getreg32(base + TIVA_GPIO_AFSEL_OFFSET), getreg32(base + TIVA_GPIO_DEN_OFFSET),
getreg32(base + TIVA_GPIO_DIR_OFFSET), getreg32(base + TIVA_GPIO_DATA_OFFSET + 0x3fc));
lldbg(" IS: %02x IBE: %02x IEV: %02x IM: %02x RIS: %08x MIS: %08x\n",
getreg32(base + TIVA_GPIO_IEV_OFFSET), getreg32(base + TIVA_GPIO_IM_OFFSET),
getreg32(base + TIVA_GPIO_RIS_OFFSET), getreg32(base + TIVA_GPIO_MIS_OFFSET));
lldbg(" 2MA: %02x 4MA: %02x 8MA: %02x ODR: %02x PUR %02x PDR: %02x SLR: %02x\n",
getreg32(base + TIVA_GPIO_DR2R_OFFSET), getreg32(base + TIVA_GPIO_DR4R_OFFSET),
getreg32(base + TIVA_GPIO_DR8R_OFFSET), getreg32(base + TIVA_GPIO_ODR_OFFSET),
getreg32(base + TIVA_GPIO_PUR_OFFSET), getreg32(base + TIVA_GPIO_PDR_OFFSET),
getreg32(base + TIVA_GPIO_SLR_OFFSET));
}
irqrestore(flags);
#endif /* CONFIG_DEBUG */
return OK;
}
