/**************************************************************************** * arch/arm/src/lm/lm_dumpgpio.c * * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include "up_arch.h" #include "chip.h" #include "lm_gpio.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Private Types ****************************************************************************/ /* NOTE: this is duplicated in lm_gpio.c */ static const uintptr_t g_gpiobase[LM_NPORTS] = { #if LM_NPORTS > 0 LM_GPIOA_BASE #endif #if LM_NPORTS > 1 , LM_GPIOB_BASE #endif #if LM_NPORTS > 2 , LM_GPIOC_BASE #endif #if LM_NPORTS > 3 , LM_GPIOD_BASE #endif #if LM_NPORTS > 4 , LM_GPIOE_BASE #endif #if LM_NPORTS > 5 , LM_GPIOF_BASE #endif #if LM_NPORTS > 6 , LM_GPIOG_BASE #endif #if LM_NPORTS > 7 , LM_GPIOH_BASE #endif #if LM_NPORTS > 8 , LM_GPIOJ_BASE #endif }; static const char g_portchar[LM_NPORTS] = { #if LM_NPORTS > 0 'A' #endif #if LM_NPORTS > 1 , 'B' #endif #if LM_NPORTS > 2 , 'C' #endif #if LM_NPORTS > 3 , 'D' #endif #if LM_NPORTS > 4 , 'E' #endif #if LM_NPORTS > 5 , 'F' #endif #if LM_NPORTS > 6 , 'G' #endif #if LM_NPORTS > 7 , 'H' #endif #if LM_NPORTS > 8 , 'J' #endif }; /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: lm_gpiobaseaddress * * Description: * Given a GPIO enumeration value, return the base address of the * associated GPIO registers. * ****************************************************************************/ static inline uintptr_t lm_gpiobaseaddress(int port) { return port < LM_NPORTS ? g_gpiobase[port] : 0; } /**************************************************************************** * Name: lm_gpioport * * Description: * Given a GPIO enumeration value, return the base address of the * associated GPIO registers. * ****************************************************************************/ static inline uint8_t lm_gpioport(int port) { return port < LM_NPORTS ? g_portchar[port] : '?'; } /**************************************************************************** * Global Functions ****************************************************************************/ /**************************************************************************** * Function: lm_dumpgpio * * Description: * Dump all GPIO registers associated with the provided base address * ****************************************************************************/ int lm_dumpgpio(uint32_t pinset, const char *msg) { 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 = lm_gpiobaseaddress(port); DEBUGASSERT(base != 0); /* The following requires exclusive access to the GPIO registers */ flags = irqsave(); rcgc2 = getreg32(LM_SYSCON_RCGC2); enabled = ((rcgc2 & SYSCON_RCGC2_GPIO(port)) != 0); lldbg("GPIO%c pinset: %08x base: %08x -- %s\n", lm_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 + LM_GPIO_AFSEL_OFFSET), getreg32(base + LM_GPIO_DEN_OFFSET), getreg32(base + LM_GPIO_DIR_OFFSET), getreg32(base + LM_GPIO_DATA_OFFSET + 0x3fc)); lldbg(" IS: %02x IBE: %02x IEV: %02x IM: %02x RIS: %08x MIS: %08x\n", getreg32(base + LM_GPIO_IEV_OFFSET), getreg32(base + LM_GPIO_IM_OFFSET), getreg32(base + LM_GPIO_RIS_OFFSET), getreg32(base + LM_GPIO_MIS_OFFSET)); lldbg(" 2MA: %02x 4MA: %02x 8MA: %02x ODR: %02x PUR %02x PDR: %02x SLR: %02x\n", getreg32(base + LM_GPIO_DR2R_OFFSET), getreg32(base + LM_GPIO_DR4R_OFFSET), getreg32(base + LM_GPIO_DR8R_OFFSET), getreg32(base + LM_GPIO_ODR_OFFSET), getreg32(base + LM_GPIO_PUR_OFFSET), getreg32(base + LM_GPIO_PDR_OFFSET), getreg32(base + LM_GPIO_SLR_OFFSET)); } irqrestore(flags); return OK; }