aon_ioc.h

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/******************************************************************************
*  Filename:       aon_ioc.h
*  Revised:        2015-09-08 16:38:55 +0200 (Tue, 08 Sep 2015)
*  Revision:       44531
*
*  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>

//*****************************************************************************
//
// Defines for the drive strength
//
//*****************************************************************************
#define AONIOC_DRV_STR_1  0x00000000 // Lowest drive strength
#define AONIOC_DRV_STR_2  0x00000001
#define AONIOC_DRV_STR_3  0x00000003
#define AONIOC_DRV_STR_4  0x00000002
#define AONIOC_DRV_STR_5  0x00000006
#define AONIOC_DRV_STR_6  0x00000007
#define AONIOC_DRV_STR_7  0x00000005
#define AONIOC_DRV_STR_8  0x00000004 // Highest drive strength

#define AONIOC_DRV_LVL_MIN  (AON_IOC_O_IOSTRMIN)
#define AONIOC_DRV_LVL_MED  (AON_IOC_O_IOSTRMED)
#define AONIOC_DRV_LVL_MAX  (AON_IOC_O_IOSTRMAX)

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

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
AONIOCDriveStrengthSet(uint32_t ui32DriveLevel, uint32_t ui32DriveStrength)
{
    ASSERT((ui32DriveLevel == AONIOC_DRV_LVL_MIN) ||
           (ui32DriveLevel == AONIOC_DRV_LVL_MED) ||
           (ui32DriveLevel == AONIOC_DRV_LVL_MAX));
    ASSERT((ui32DriveStrength == AONIOC_DRV_STR_1) ||
           (ui32DriveStrength == AONIOC_DRV_STR_2) ||
           (ui32DriveStrength == AONIOC_DRV_STR_3) ||
           (ui32DriveStrength == AONIOC_DRV_STR_4) ||
           (ui32DriveStrength == AONIOC_DRV_STR_5) ||
           (ui32DriveStrength == AONIOC_DRV_STR_6) ||
           (ui32DriveStrength == AONIOC_DRV_STR_7) ||
           (ui32DriveStrength == AONIOC_DRV_STR_8));

    //
    // Set the drive strength.
    //
    HWREG(AON_IOC_BASE + ui32DriveLevel) = ui32DriveStrength;
}

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE uint32_t
AONIOCDriveStrengthGet(uint32_t ui32DriveLevel)
{
    //
    // Check the arguments.
    //
    ASSERT((ui32DriveLevel == AONIOC_DRV_LVL_MIN) ||
           (ui32DriveLevel == AONIOC_DRV_LVL_MED) ||
           (ui32DriveLevel == AONIOC_DRV_LVL_MAX));

    //
    // Return the drive strength value.
    //
    return( HWREG(AON_IOC_BASE + 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;
}

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

#endif //  __AON_IOC_H__

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