475 lines
14 KiB
C
475 lines
14 KiB
C
//*****************************************************************************
|
|
// gpio_if.c
|
|
//
|
|
// GPIO interface APIs, this common interface file helps to configure,
|
|
// set/toggle only 3 GPIO pins which are connected to 3 LEDs of CC32xx Launchpad
|
|
//
|
|
// Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
|
|
//
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
//
|
|
// Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// 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.
|
|
//
|
|
// Neither the name of Texas Instruments Incorporated 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.
|
|
//
|
|
//*****************************************************************************
|
|
|
|
// Standard includes
|
|
#include <stdio.h>
|
|
|
|
// Driverlib includes
|
|
#include "hw_types.h"
|
|
#include "hw_ints.h"
|
|
#include "hw_memmap.h"
|
|
#include "hw_apps_rcm.h"
|
|
#include "interrupt.h"
|
|
#include "pin.h"
|
|
#include "gpio.h"
|
|
#include "prcm.h"
|
|
#include "rom.h"
|
|
#include "rom_map.h"
|
|
|
|
// OS includes
|
|
#if defined(USE_TIRTOS) || defined(USE_FREERTOS) || defined(SL_PLATFORM_MULTI_THREADED)
|
|
#include <stdlib.h>
|
|
#include "osi.h"
|
|
#endif
|
|
|
|
// Common interface include
|
|
#include "gpio_if.h"
|
|
|
|
//****************************************************************************
|
|
// GLOBAL VARIABLES
|
|
//****************************************************************************
|
|
static unsigned long ulReg[]=
|
|
{
|
|
GPIOA0_BASE,
|
|
GPIOA1_BASE,
|
|
GPIOA2_BASE,
|
|
GPIOA3_BASE,
|
|
GPIOA4_BASE
|
|
};
|
|
|
|
//*****************************************************************************
|
|
// Variables to store TIMER Port,Pin values
|
|
//*****************************************************************************
|
|
unsigned int g_uiLED1Port = 0,g_uiLED2Port = 0,g_uiLED3Port = 0;
|
|
unsigned char g_ucLED1Pin,g_ucLED2Pin,g_ucLED3Pin;
|
|
|
|
#define GPIO_LED1 9
|
|
#define GPIO_LED2 10
|
|
#define GPIO_LED3 11
|
|
|
|
|
|
//****************************************************************************
|
|
// LOCAL FUNCTION DEFINITIONS
|
|
//****************************************************************************
|
|
|
|
static unsigned char
|
|
GetPeripheralIntNum(unsigned int uiGPIOPort)
|
|
{
|
|
|
|
switch(uiGPIOPort)
|
|
{
|
|
case GPIOA0_BASE:
|
|
return INT_GPIOA0;
|
|
case GPIOA1_BASE:
|
|
return INT_GPIOA1;
|
|
case GPIOA2_BASE:
|
|
return INT_GPIOA2;
|
|
case GPIOA3_BASE:
|
|
return INT_GPIOA3;
|
|
default:
|
|
return INT_GPIOA0;
|
|
}
|
|
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! GPIO Enable & Configuration
|
|
//!
|
|
//! \param ucPins is the bit-pack representation of 3 LEDs
|
|
//! LSB:GP09-GP10-GP11:MSB
|
|
//!
|
|
//! \return None
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
GPIO_IF_LedConfigure(unsigned char ucPins)
|
|
{
|
|
|
|
if(ucPins & LED1)
|
|
{
|
|
GPIO_IF_GetPortNPin(GPIO_LED1,
|
|
&g_uiLED1Port,
|
|
&g_ucLED1Pin);
|
|
}
|
|
|
|
if(ucPins & LED2)
|
|
{
|
|
GPIO_IF_GetPortNPin(GPIO_LED2,
|
|
&g_uiLED2Port,
|
|
&g_ucLED2Pin);
|
|
}
|
|
|
|
if(ucPins & LED3)
|
|
{
|
|
GPIO_IF_GetPortNPin(GPIO_LED3,
|
|
&g_uiLED3Port,
|
|
&g_ucLED3Pin);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Turn LED On
|
|
//!
|
|
//! \param ledNum is the LED Number
|
|
//!
|
|
//! \return none
|
|
//!
|
|
//! \brief Turns a specific LED Off
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
GPIO_IF_LedOn(char ledNum)
|
|
{
|
|
switch(ledNum)
|
|
{
|
|
case MCU_ON_IND:
|
|
case MCU_EXECUTE_SUCCESS_IND:
|
|
case MCU_GREEN_LED_GPIO:
|
|
{
|
|
/* Switch ON GREEN LED */
|
|
GPIO_IF_Set(GPIO_LED3, g_uiLED3Port, g_ucLED3Pin, 1);
|
|
break;
|
|
}
|
|
case MCU_SENDING_DATA_IND:
|
|
case MCU_EXECUTE_FAIL_IND:
|
|
case MCU_ORANGE_LED_GPIO:
|
|
{
|
|
/* Switch ON ORANGE LED */
|
|
GPIO_IF_Set(GPIO_LED2, g_uiLED2Port, g_ucLED2Pin, 1);
|
|
break;
|
|
}
|
|
case MCU_ASSOCIATED_IND:
|
|
case MCU_IP_ALLOC_IND:
|
|
case MCU_SERVER_INIT_IND:
|
|
case MCU_CLIENT_CONNECTED_IND:
|
|
case MCU_RED_LED_GPIO:
|
|
{
|
|
/* Switch ON RED LED */
|
|
GPIO_IF_Set(GPIO_LED1, g_uiLED1Port, g_ucLED1Pin, 1);
|
|
break;
|
|
}
|
|
case MCU_ALL_LED_IND:
|
|
{
|
|
/* Switch ON ALL LEDs LED */
|
|
GPIO_IF_Set(GPIO_LED3, g_uiLED3Port, g_ucLED3Pin, 1);
|
|
GPIO_IF_Set(GPIO_LED2, g_uiLED2Port, g_ucLED2Pin, 1);
|
|
GPIO_IF_Set(GPIO_LED1, g_uiLED1Port, g_ucLED1Pin, 1);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Turn LED Off
|
|
//!
|
|
//! \param ledNum is the LED Number
|
|
//!
|
|
//! \return none
|
|
//!
|
|
//! \brief Turns a specific LED Off
|
|
//
|
|
//*****************************************************************************
|
|
void
|
|
GPIO_IF_LedOff(char ledNum)
|
|
{
|
|
switch(ledNum)
|
|
{
|
|
case MCU_ON_IND:
|
|
case MCU_EXECUTE_SUCCESS_IND:
|
|
case MCU_GREEN_LED_GPIO:
|
|
{
|
|
/* Switch OFF GREEN LED */
|
|
GPIO_IF_Set(GPIO_LED3, g_uiLED3Port, g_ucLED3Pin, 0);
|
|
break;
|
|
}
|
|
case MCU_SENDING_DATA_IND:
|
|
case MCU_EXECUTE_FAIL_IND:
|
|
case MCU_ORANGE_LED_GPIO:
|
|
{
|
|
/* Switch OFF ORANGE LED */
|
|
GPIO_IF_Set(GPIO_LED2, g_uiLED2Port, g_ucLED2Pin, 0);
|
|
break;
|
|
}
|
|
case MCU_ASSOCIATED_IND:
|
|
case MCU_IP_ALLOC_IND:
|
|
case MCU_SERVER_INIT_IND:
|
|
case MCU_CLIENT_CONNECTED_IND:
|
|
case MCU_RED_LED_GPIO:
|
|
{
|
|
/* Switch OFF RED LED */
|
|
GPIO_IF_Set(GPIO_LED1, g_uiLED1Port, g_ucLED1Pin, 0);
|
|
break;
|
|
}
|
|
case MCU_ALL_LED_IND:
|
|
{
|
|
/* Switch OFF ALL LEDs LED */
|
|
GPIO_IF_Set(GPIO_LED3, g_uiLED3Port, g_ucLED3Pin, 0);
|
|
GPIO_IF_Set(GPIO_LED2, g_uiLED2Port, g_ucLED2Pin, 0);
|
|
GPIO_IF_Set(GPIO_LED1, g_uiLED1Port, g_ucLED1Pin, 0);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! \brief This function returns LED current Status
|
|
//!
|
|
//! \param[in] ucGPIONum is the GPIO to which the LED is connected
|
|
//! MCU_GREEN_LED_GPIO\MCU_ORANGE_LED_GPIO\MCU_RED_LED_GPIO
|
|
//!
|
|
//!
|
|
//! \return 1: LED ON, 0: LED OFF
|
|
//
|
|
//*****************************************************************************
|
|
unsigned char
|
|
GPIO_IF_LedStatus(unsigned char ucGPIONum)
|
|
{
|
|
unsigned char ucLEDStatus;
|
|
switch(ucGPIONum)
|
|
{
|
|
case MCU_GREEN_LED_GPIO:
|
|
{
|
|
ucLEDStatus = GPIO_IF_Get(ucGPIONum, g_uiLED3Port, g_ucLED3Pin);
|
|
break;
|
|
}
|
|
case MCU_ORANGE_LED_GPIO:
|
|
{
|
|
ucLEDStatus = GPIO_IF_Get(ucGPIONum, g_uiLED2Port, g_ucLED2Pin);
|
|
break;
|
|
}
|
|
case MCU_RED_LED_GPIO:
|
|
{
|
|
ucLEDStatus = GPIO_IF_Get(ucGPIONum, g_uiLED1Port, g_ucLED1Pin);
|
|
break;
|
|
}
|
|
default:
|
|
ucLEDStatus = 0;
|
|
}
|
|
return ucLEDStatus;
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
//! Toggle the Led state
|
|
//!
|
|
//! \param ledNum is the LED Number
|
|
//!
|
|
//! \return none
|
|
//!
|
|
//! \brief Toggles a board LED
|
|
//
|
|
//*****************************************************************************
|
|
void GPIO_IF_LedToggle(unsigned char ucLedNum)
|
|
{
|
|
|
|
unsigned char ucLEDStatus = GPIO_IF_LedStatus(ucLedNum);
|
|
if(ucLEDStatus == 1)
|
|
{
|
|
GPIO_IF_LedOff(ucLedNum);
|
|
}
|
|
else
|
|
{
|
|
GPIO_IF_LedOn(ucLedNum);
|
|
}
|
|
}
|
|
|
|
//****************************************************************************
|
|
//
|
|
//! Get the port and pin of a given GPIO
|
|
//!
|
|
//! \param ucPin is the pin to be set-up as a GPIO (0:39)
|
|
//! \param puiGPIOPort is the pointer to store GPIO port address return value
|
|
//! \param pucGPIOPin is the pointer to store GPIO pin return value
|
|
//!
|
|
//! This function
|
|
//! 1. Return the GPIO port address and pin for a given external pin number
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//****************************************************************************
|
|
void
|
|
GPIO_IF_GetPortNPin(unsigned char ucPin,
|
|
unsigned int *puiGPIOPort,
|
|
unsigned char *pucGPIOPin)
|
|
{
|
|
//
|
|
// Get the GPIO pin from the external Pin number
|
|
//
|
|
*pucGPIOPin = 1 << (ucPin % 8);
|
|
|
|
//
|
|
// Get the GPIO port from the external Pin number
|
|
//
|
|
*puiGPIOPort = (ucPin / 8);
|
|
*puiGPIOPort = ulReg[*puiGPIOPort];
|
|
}
|
|
|
|
//****************************************************************************
|
|
//
|
|
//! Configures the GPIO selected as input to generate interrupt on activity
|
|
//!
|
|
//! \param uiGPIOPort is the GPIO port address
|
|
//! \param ucGPIOPin is the GPIO pin of the specified port
|
|
//! \param uiIntType is the type of the interrupt (refer gpio.h)
|
|
//! \param pfnIntHandler is the interrupt handler to register
|
|
//!
|
|
//! This function
|
|
//! 1. Sets GPIO interrupt type
|
|
//! 2. Registers Interrupt handler
|
|
//! 3. Enables Interrupt
|
|
//!
|
|
//! \return None
|
|
//
|
|
//****************************************************************************
|
|
void
|
|
GPIO_IF_ConfigureNIntEnable(unsigned int uiGPIOPort,
|
|
unsigned char ucGPIOPin,
|
|
unsigned int uiIntType,
|
|
void (*pfnIntHandler)(void))
|
|
{
|
|
//
|
|
// Set GPIO interrupt type
|
|
//
|
|
MAP_GPIOIntTypeSet(uiGPIOPort,ucGPIOPin,uiIntType);
|
|
|
|
//
|
|
// Register Interrupt handler
|
|
//
|
|
#if defined(USE_TIRTOS) || defined(USE_FREERTOS) || defined(SL_PLATFORM_MULTI_THREADED)
|
|
// USE_TIRTOS: if app uses TI-RTOS (either networking/non-networking)
|
|
// USE_FREERTOS: if app uses Free-RTOS (either networking/non-networking)
|
|
// SL_PLATFORM_MULTI_THREADED: if app uses any OS + networking(simplelink)
|
|
osi_InterruptRegister(GetPeripheralIntNum(uiGPIOPort),
|
|
pfnIntHandler, INT_PRIORITY_LVL_1);
|
|
|
|
#else
|
|
MAP_IntPrioritySet(GetPeripheralIntNum(uiGPIOPort), INT_PRIORITY_LVL_1);
|
|
MAP_GPIOIntRegister(uiGPIOPort,pfnIntHandler);
|
|
#endif
|
|
|
|
//
|
|
// Enable Interrupt
|
|
//
|
|
MAP_GPIOIntClear(uiGPIOPort,ucGPIOPin);
|
|
MAP_GPIOIntEnable(uiGPIOPort,ucGPIOPin);
|
|
}
|
|
|
|
//****************************************************************************
|
|
//
|
|
//! Set a value to the specified GPIO pin
|
|
//!
|
|
//! \param ucPin is the GPIO pin to be set (0:39)
|
|
//! \param uiGPIOPort is the GPIO port address
|
|
//! \param ucGPIOPin is the GPIO pin of the specified port
|
|
//! \param ucGPIOValue is the value to be set
|
|
//!
|
|
//! This function
|
|
//! 1. Sets a value to the specified GPIO pin
|
|
//!
|
|
//! \return None.
|
|
//
|
|
//****************************************************************************
|
|
void
|
|
GPIO_IF_Set(unsigned char ucPin,
|
|
unsigned int uiGPIOPort,
|
|
unsigned char ucGPIOPin,
|
|
unsigned char ucGPIOValue)
|
|
{
|
|
//
|
|
// Set the corresponding bit in the bitmask
|
|
//
|
|
ucGPIOValue = ucGPIOValue << (ucPin % 8);
|
|
|
|
//
|
|
// Invoke the API to set the value
|
|
//
|
|
MAP_GPIOPinWrite(uiGPIOPort,ucGPIOPin,ucGPIOValue);
|
|
}
|
|
|
|
//****************************************************************************
|
|
//
|
|
//! Set a value to the specified GPIO pin
|
|
//!
|
|
//! \param ucPin is the GPIO pin to be set (0:39)
|
|
//! \param uiGPIOPort is the GPIO port address
|
|
//! \param ucGPIOPin is the GPIO pin of the specified port
|
|
//!
|
|
//! This function
|
|
//! 1. Gets a value of the specified GPIO pin
|
|
//!
|
|
//! \return value of the GPIO pin
|
|
//
|
|
//****************************************************************************
|
|
unsigned char
|
|
GPIO_IF_Get(unsigned char ucPin,
|
|
unsigned int uiGPIOPort,
|
|
unsigned char ucGPIOPin)
|
|
{
|
|
unsigned char ucGPIOValue;
|
|
long lGPIOStatus;
|
|
|
|
//
|
|
// Invoke the API to Get the value
|
|
//
|
|
lGPIOStatus = MAP_GPIOPinRead(uiGPIOPort,ucGPIOPin);
|
|
|
|
//
|
|
// Set the corresponding bit in the bitmask
|
|
//
|
|
ucGPIOValue = lGPIOStatus >> (ucPin % 8);
|
|
return ucGPIOValue;
|
|
}
|
|
|
|
//*****************************************************************************
|
|
//
|
|
// Close the Doxygen group.
|
|
//! @}
|
|
//
|
|
//*****************************************************************************
|