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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o 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.
*
* o Neither the name of Freescale Semiconductor, Inc. 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 HOLDER 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.
*/
/****************************************************************************
*
* Comments:
* This file contains the functions which write and read the SPI memories
* using the ECSPI driver in interrupt mode.
*
****************************************************************************/
#include <stdbool.h>
#include "gpio_pins.h"
#include "board.h"
#include "gpio_ctrl.h"
#include "gpio_imx.h"
#include "rdc_semaphore.h"
#include "debug_console_imx.h"
#define GPIO_DEBOUNCE_DELAY (100000)
void GPIO_Ctrl_InitSwitch1Pin()
{
#ifdef BOARD_GPIO_SWITCH1_CONFIG
/* Acquire RDC semaphore before access GPIO to avoid conflict, it's
* necessary when GPIO RDC is configured as Semaphore Required */
RDC_SEMAPHORE_Lock(BOARD_GPIO_SWITCH1_RDC_PDAP);
GPIO_Init(BOARD_GPIO_SWITCH1_CONFIG->base, &Switch1);
RDC_SEMAPHORE_Unlock(BOARD_GPIO_SWITCH1_RDC_PDAP);
#endif
}
void GPIO_Ctrl_InitLed1Pin()
{
#ifdef BOARD_GPIO_LED1_CONFIG
/* Acquire RDC semaphore before access GPIO to avoid conflict, it's
* necessary when GPIO RDC is configured as Semaphore Required */
RDC_SEMAPHORE_Lock(BOARD_GPIO_LED1_RDC_PDAP);
GPIO_Init(BOARD_GPIO_LED1_CONFIG->base, &Led1);
RDC_SEMAPHORE_Unlock(BOARD_GPIO_LED1_RDC_PDAP);
#endif
}
void GPIO_Ctrl_InitSwitch2Pin()
{
#ifdef BOARD_GPIO_SWITCH2_CONFIG
/* Acquire RDC semaphore before access GPIO to avoid conflict, it's
* necessary when GPIO RDC is configured as Semaphore Required */
RDC_SEMAPHORE_Lock(BOARD_GPIO_SWITCH2_RDC_PDAP);
GPIO_Init(BOARD_GPIO_SWITCH2_CONFIG->base, &Switch2);
RDC_SEMAPHORE_Unlock(BOARD_GPIO_SWITCH2_RDC_PDAP);
#endif
}
void GPIO_Ctrl_InitLed2Pin()
{
#ifdef BOARD_GPIO_LED2_CONFIG
/* Acquire RDC semaphore before access GPIO to avoid conflict, it's
* necessary when GPIO RDC is configured as Semaphore Required */
RDC_SEMAPHORE_Lock(BOARD_GPIO_LED2_RDC_PDAP);
GPIO_Init(BOARD_GPIO_LED2_CONFIG->base, &Led2);
RDC_SEMAPHORE_Unlock(BOARD_GPIO_LED2_RDC_PDAP);
#endif
}
void GPIO_Ctrl_Init()
{
GPIO_Ctrl_InitSwitch1Pin();
GPIO_Ctrl_InitLed1Pin();
GPIO_Ctrl_InitSwitch2Pin();
GPIO_Ctrl_InitLed2Pin();
}
void GPIO_Ctrl_ToggleLed(gpio_config_t *boardGpioConfig, uint32_t boardGpioRdc)
{
static bool onLed0 = 0;
onLed0 = GPIO_ReadPinOutput(boardGpioConfig->base, boardGpioConfig->pin);
if(onLed0 == 0)
{
RDC_SEMAPHORE_Lock(boardGpioRdc);
GPIO_WritePinOutput(boardGpioConfig->base,
boardGpioConfig->pin, gpioPinSet);
RDC_SEMAPHORE_Unlock(boardGpioRdc);
}
else
{
RDC_SEMAPHORE_Lock(boardGpioRdc);
GPIO_WritePinOutput(boardGpioConfig->base,
boardGpioConfig->pin, gpioPinClear);
RDC_SEMAPHORE_Unlock(boardGpioRdc);
}
}
void GPIO_Ctrl_ClearLed(gpio_config_t *boardGpioConfig, uint32_t boardGpioRdc)
{
RDC_SEMAPHORE_Lock(boardGpioRdc);
GPIO_WritePinOutput(boardGpioConfig->base,
boardGpioConfig->pin, gpioPinClear);
RDC_SEMAPHORE_Unlock(boardGpioRdc);
}
void GPIO_Ctrl_SetLed(gpio_config_t *boardGpioConfig, uint32_t boardGpioRdc)
{
RDC_SEMAPHORE_Lock(boardGpioRdc);
GPIO_WritePinOutput(boardGpioConfig->base,
boardGpioConfig->pin, gpioPinSet);
RDC_SEMAPHORE_Unlock(boardGpioRdc);
}
void GPIO_Ctrl_WriteLed(gpio_config_t *boardGpioConfig, uint32_t boardGpioRdc, uint32_t value)
{
RDC_SEMAPHORE_Lock(boardGpioRdc);
GPIO_WritePinOutput(boardGpioConfig->base,
boardGpioConfig->pin, value);
RDC_SEMAPHORE_Unlock(boardGpioRdc);
}
uint32_t GPIO_Ctrl_GetKey(gpio_config_t *boardGpioConfig)
{
return GPIO_ReadPinInput(boardGpioConfig->base, boardGpioConfig->pin);
}
void GPIO_WaitKeyPressed(gpio_config_t *boardGpioConfig, uint32_t boardGpioRdc)
{
uint32_t i, j, debounce;
/* Wait for Key Released. */
do
{
debounce = 0;
while (0 == GPIO_ReadPinInput(boardGpioConfig->base, boardGpioConfig->pin));
for (i = 0; i < 3; i++)
{
/* Delay to wait key value stable. The cycle number should be changed
* according to M4 Core clock frequncy.
*/
for (j = 0 ; j < GPIO_DEBOUNCE_DELAY; j++)
{
__NOP();
}
if (1 == GPIO_ReadPinInput(boardGpioConfig->base, boardGpioConfig->pin))
{
debounce++;
}
}
if (debounce > 2)
{
break;
}
}
while (1);
}
#ifdef BOARD_GPIO_KEY_CONFIG
void BOARD_GPIO_KEY_HANDLER()
{
/* When user input captured, we disable GPIO interrupt */
NVIC_DisableIRQ(BOARD_GPIO_KEY_IRQ_NUM);
RDC_SEMAPHORE_Lock(BOARD_GPIO_KEY_RDC_PDAP);
/* Disable GPIO pin interrupt */
GPIO_SetPinIntMode(BOARD_GPIO_KEY_CONFIG->base, BOARD_GPIO_KEY_CONFIG->pin, false);
/* Clear the interrupt state */
GPIO_ClearStatusFlag(BOARD_GPIO_KEY_CONFIG->base, BOARD_GPIO_KEY_CONFIG->pin);
RDC_SEMAPHORE_Unlock(BOARD_GPIO_KEY_RDC_PDAP);
#ifdef xSemaphoreGiveFromISR
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
/* Unlock the task to process the event. */
xSemaphoreGiveFromISR(xSemaphore, &xHigherPriorityTaskWoken);
/* Perform a context switch to wake the higher priority task. */
portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
#endif
}
#endif
/*******************************************************************************
* EOF
******************************************************************************/
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