Subversion Repositories openrisc

//*****************************************************************************

//

// gpio.h - Defines and Macros for GPIO API.

//

// Copyright (c) 2005,2006 Luminary Micro, Inc.  All rights reserved.

//

// Software License Agreement

//

// Luminary Micro, Inc. (LMI) is supplying this software for use solely and

// exclusively on LMI's Stellaris Family of microcontroller products.

//

// The software is owned by LMI and/or its suppliers, and is protected under

// applicable copyright laws.  All rights are reserved.  Any use in violation

// of the foregoing restrictions may subject the user to criminal sanctions

// under applicable laws, as well as to civil liability for the breach of the

// terms and conditions of this license.

//

// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED

// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF

// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.

// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR

// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

//

// This is part of revision 991 of the Stellaris Driver Library.

//

//*****************************************************************************

#ifndef __GPIO_H__

#define __GPIO_H__

#ifdef __cplusplus

extern "C"

{

#endif

//*****************************************************************************

//

// The following values define the bit field for the ucPins argument to several

// of the APIs.

//

//*****************************************************************************

#define GPIO_PIN_0              0x00000001  // GPIO pin 0

#define GPIO_PIN_1              0x00000002  // GPIO pin 1

#define GPIO_PIN_2              0x00000004  // GPIO pin 2

#define GPIO_PIN_3              0x00000008  // GPIO pin 3

#define GPIO_PIN_4              0x00000010  // GPIO pin 4

#define GPIO_PIN_5              0x00000020  // GPIO pin 5

#define GPIO_PIN_6              0x00000040  // GPIO pin 6

#define GPIO_PIN_7              0x00000080  // GPIO pin 7

//*****************************************************************************

//

// Values that can be passed to GPIODirModeSet as the ulPinIO parameter, and

// returned from GPIODirModeGet.

//

//*****************************************************************************

#define GPIO_DIR_MODE_IN        0x00000000  // Pin is a GPIO input

#define GPIO_DIR_MODE_OUT       0x00000001  // Pin is a GPIO output

#define GPIO_DIR_MODE_HW        0x00000002  // Pin is a peripheral function

//*****************************************************************************

//

// Values that can be passed to GPIOIntTypeSet as the ulIntType parameter, and

// returned from GPIOIntTypeGet.

//

//*****************************************************************************

#define GPIO_FALLING_EDGE       0x00000000  // Interrupt on falling edge

#define GPIO_RISING_EDGE        0x00000004  // Interrupt on rising edge

#define GPIO_BOTH_EDGES         0x00000001  // Interrupt on both edges

#define GPIO_LOW_LEVEL          0x00000002  // Interrupt on low level

#define GPIO_HIGH_LEVEL         0x00000007  // Interrupt on high level

//*****************************************************************************

//

// Values that can be passed to GPIOPadConfigSet as the ulStrength parameter,

// and returned by GPIOPadConfigGet in the *pulStrength parameter.

//

//*****************************************************************************

#define GPIO_STRENGTH_2MA       0x00000001  // 2mA drive strength

#define GPIO_STRENGTH_4MA       0x00000002  // 4mA drive strength

#define GPIO_STRENGTH_8MA       0x00000004  // 8mA drive strength

#define GPIO_STRENGTH_8MA_SC    0x0000000C  // 8mA drive with slew rate control

//*****************************************************************************

//

// Values that can be passed to GPIOPadConfigSet as the ulPadType parameter,

// and returned by GPIOPadConfigGet in the *pulPadType parameter.

//

//*****************************************************************************

#define GPIO_PIN_TYPE_STD       0x00000008  // Push-pull

#define GPIO_PIN_TYPE_STD_WPU   0x0000000A  // Push-pull with weak pull-up

#define GPIO_PIN_TYPE_STD_WPD   0x0000000C  // Push-pull with weak pull-down

#define GPIO_PIN_TYPE_OD        0x00000009  // Open-drain

#define GPIO_PIN_TYPE_OD_WPU    0x0000000B  // Open-drain with weak pull-up

#define GPIO_PIN_TYPE_OD_WPD    0x0000000D  // Open-drain with weak pull-down

#define GPIO_PIN_TYPE_ANALOG    0x00000000  // Analog comparator

//*****************************************************************************

//

// Prototypes for the APIs.

//

//*****************************************************************************

extern void GPIODirModeSet(unsigned long ulPort, unsigned char ucPins,

                           unsigned long ulPinIO);

extern unsigned long GPIODirModeGet(unsigned long ulPort, unsigned char ucPin);

extern void GPIOIntTypeSet(unsigned long ulPort, unsigned char ucPins,

                           unsigned long ulIntType);

extern unsigned long GPIOIntTypeGet(unsigned long ulPort, unsigned char ucPin);

extern void GPIOPadConfigSet(unsigned long ulPort, unsigned char ucPins,

                             unsigned long ulStrength,

                             unsigned long ulPadType);

extern void GPIOPadConfigGet(unsigned long ulPort, unsigned char ucPin,

                             unsigned long *pulStrength,

                             unsigned long *pulPadType);

extern void GPIOPinIntEnable(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinIntDisable(unsigned long ulPort, unsigned char ucPins);

extern long GPIOPinIntStatus(unsigned long ulPort, tBoolean bMasked);

extern void GPIOPinIntClear(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPortIntRegister(unsigned long ulPort,

                                void (*pfIntHandler)(void));

extern void GPIOPortIntUnregister(unsigned long ulPort);

extern long GPIOPinRead(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinWrite(unsigned long ulPort, unsigned char ucPins,

                         unsigned char ucVal);

extern void GPIOPinTypeComparator(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinTypeI2C(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinTypePWM(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinTypeQEI(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinTypeSSI(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinTypeTimer(unsigned long ulPort, unsigned char ucPins);

extern void GPIOPinTypeUART(unsigned long ulPort, unsigned char ucPins);

#ifdef __cplusplus

}

#endif

#endif //  __GPIO_H__