aon_ioc.h

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/******************************************************************************
*  Filename:       aon_ioc.h
*  Revised:        2015-07-16 12:12:04 +0200 (Thu, 16 Jul 2015)
*  Revision:       44151
*
*  Description:    Defines and prototypes for the AON IO Controller
*
*  Copyright (c) 2015, Texas Instruments Incorporated
*  All rights reserved.
*
*  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 of the ORGANIZATION 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
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*  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
*  POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************/

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

#ifndef __AON_IOC_H__
#define __AON_IOC_H__

//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif

#include <stdbool.h>
#include <stdint.h>
#include <inc/hw_types.h>
#include <inc/hw_memmap.h>
#include <inc/hw_aon_ioc.h>
#include <driverlib/debug.h>

//*****************************************************************************
//
// Support for DriverLib in ROM:
// This section renames all functions that are not "static inline", so that
// calling these functions will default to implementation in flash. At the end
// of this file a second renaming will change the defaults to implementation in
// ROM for available functions.
//
// To force use of the implementation in flash, e.g. for debugging:
// - Globally: Define DRIVERLIB_NOROM at project level
// - Per function: Use prefix "NOROM_" when calling the function
//
//*****************************************************************************
#if !defined(DOXYGEN)
    #define AONIOCDriveStrengthSet          NOROM_AONIOCDriveStrengthSet
    #define AONIOCDriveStrengthGet          NOROM_AONIOCDriveStrengthGet
#endif

//*****************************************************************************
//
// Defines for the drive strength
//
//*****************************************************************************
#define AONIOC_DRV_STR5_7_14    0x00000000  //
#define AONIOC_DRV_STR5_10_20   0x00000001  //
#define AONIOC_DRV_STR7_14_28   0x00000003  //
#define AONIOC_DRV_STR10_20_40  0x00000002  //
#define AONIOC_DRV_STR14_28_56  0x00000006  //
#define AONIOC_DRV_STR20_40_80  0x00000007  //
#define AONIOC_DRV_STR28_56_112 0x00000005  //
#define AONIOC_DRV_STR40_80_112 0x00000004  //

#define AONIOC_MAX_DRIVE        AONIOC_DRV_STR40_80_112
#define AONIOC_MED_DRIVE        AONIOC_DRV_STR14_28_56
#define AONIOC_MIN_DRIVE        AONIOC_DRV_STR5_7_14

//*****************************************************************************
//
// API Functions and prototypes
//
//*****************************************************************************

//*****************************************************************************
//
//
//*****************************************************************************
extern void AONIOCDriveStrengthSet(uint32_t ui32LowDrvStr,
                                   uint32_t ui32MedDrvStr,
                                   uint32_t ui32MaxDrvStr);

//*****************************************************************************
//
//
//*****************************************************************************
extern uint32_t AONIOCDriveStrengthGet(uint32_t ui32DriveLevel);

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
AONIOCFreezeEnable(void)
{
    //
    // Set the AON IO latches as static.
    //
    HWREG(AON_IOC_BASE + AON_IOC_O_IOCLATCH) = 0x0;
}

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
AONIOCFreezeDisable(void)
{
    //
    // Set the AON IOC latches as transparent.
    //
    HWREG(AON_IOC_BASE + AON_IOC_O_IOCLATCH) = AON_IOC_IOCLATCH_EN;
}

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
AONIOC32kHzOutputDisable(void)
{
    //
    // Disable the LF clock output.
    //
    HWREG(AON_IOC_BASE + AON_IOC_O_CLK32KCTL) = AON_IOC_CLK32KCTL_OE_N;
}

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
AONIOC32kHzOutputEnable(void)
{
    //
    // Enable the LF clock output.
    //
    HWREG(AON_IOC_BASE + AON_IOC_O_CLK32KCTL) = 0x0;
}

//*****************************************************************************
//
// Support for DriverLib in ROM:
// Redirect to implementation in ROM when available.
//
//*****************************************************************************
#if !defined(DRIVERLIB_NOROM) && !defined(DOXYGEN)
    #include <driverlib/rom.h>
    #ifdef ROM_AONIOCDriveStrengthSet
        #undef  AONIOCDriveStrengthSet
        #define AONIOCDriveStrengthSet          ROM_AONIOCDriveStrengthSet
    #endif
    #ifdef ROM_AONIOCDriveStrengthGet
        #undef  AONIOCDriveStrengthGet
        #define AONIOCDriveStrengthGet          ROM_AONIOCDriveStrengthGet
    #endif
#endif

//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif

#endif //  __AON_IOC_H__

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