tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_Freescale/TARGET_KPSDK_MCUS/TARGET_KPSDK_CODE/hal/gpio/fsl_gpio_hal.c

   1 /*
   2  * Copyright (c) 2013 - 2014, Freescale Semiconductor, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without modification,
   6  * are permitted provided that the following conditions are met:
   7  *
   8  * o Redistributions of source code must retain the above copyright notice, this list
   9  *   of conditions and the following disclaimer.
  10  *
  11  * o Redistributions in binary form must reproduce the above copyright notice, this
  12  *   list of conditions and the following disclaimer in the documentation and/or
  13  *   other materials provided with the distribution.
  14  *
  15  * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
  16  *   contributors may be used to endorse or promote products derived from this
  17  *   software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
  23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  26  * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #include "fsl_gpio_hal.h"
  32
  33 /*******************************************************************************
  34  * Code
  35  ******************************************************************************/
  36 /*FUNCTION**********************************************************************
  37  *
  38  * Function Name : GPIO_HAL_SetPinDir
  39  * Description   : Set individual gpio pin to general input or output.
  40  *
  41  *END**************************************************************************/
  42 void GPIO_HAL_SetPinDir(uint32_t baseAddr, uint32_t pin, gpio_pin_direction_t direction)
  43 {
  44     assert(pin < 32);
  45
  46     if (direction == kGpioDigitalOutput)
  47     {
  48         HW_GPIO_PDDR_SET(baseAddr, 1U << pin);
  49     }
  50     else
  51     {
  52         HW_GPIO_PDDR_CLR(baseAddr, 1U << pin);
  53     }
  54 }
  55
  56 /*FUNCTION**********************************************************************
  57  *
  58  * Function Name : GPIO_HAL_WritePinOutput
  59  * Description   : Set output level of individual gpio pin to logic 1 or 0.
  60  *
  61  *END**************************************************************************/
  62 void GPIO_HAL_WritePinOutput(uint32_t baseAddr, uint32_t pin, uint32_t output)
  63 {
  64     assert(pin < 32);
  65     if (output != 0U)
  66     {
  67         HW_GPIO_PSOR_WR(baseAddr, 1U << pin); /* Set pin output to high level.*/
  68     }
  69     else
  70     {
  71         HW_GPIO_PCOR_WR(baseAddr, 1U << pin); /* Set pin output to low level.*/
  72     }
  73 }
  74
  75 /*******************************************************************************
  76  * EOF
  77  ******************************************************************************/