vims.h

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/******************************************************************************
*  Filename:       vims.h
*  Revised:        2015-07-16 12:12:04 +0200 (Thu, 16 Jul 2015)
*  Revision:       44151
*
*  Description:    Defines and prototypes for the VIMS.
*
*  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
*  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
*
******************************************************************************/

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

#ifndef __VIMS_H__
#define __VIMS_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_vims.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 VIMSConfigure                   NOROM_VIMSConfigure
    #define VIMSModeSet                     NOROM_VIMSModeSet
    #define VIMSModeGet                     NOROM_VIMSModeGet
    #define VIMSModeSetBlocking             NOROM_VIMSModeSetBlocking
#endif

//*****************************************************************************
//
// Values that can be passed to VIMSModeSet() as the ui32IntFlags parameter,
// and returned from VIMSModeGet().
//
//*****************************************************************************
#define VIMS_MODE_CHANGING      0x4  // VIMS mode is changing now and VIMS_MODE
                                     // can not be changed at moment.
#define VIMS_MODE_DISABLED      0x0  // Disabled mode.
#define VIMS_MODE_ENABLED       0x1  // Enabled mode, only USERCODE is cached.
#define VIMS_MODE_SPLIT         0x2  // Split mode, both USERCODE and SYSCODE
                                     // will be cached.
#define VIMS_MODE_OFF           0x3  // VIMS Cache RAM is off

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

#ifdef DRIVERLIB_DEBUG
//*****************************************************************************
//
//
//*****************************************************************************
static bool
VIMSBaseValid(uint32_t ui32Base)
{
    return(ui32Base == VIMS_BASE);
}
#endif

//*****************************************************************************
//
//
//*****************************************************************************
extern void VIMSConfigure(uint32_t ui32Base, bool bRoundRobin,
                          bool bPrefetch);

//*****************************************************************************
//
//
//*****************************************************************************
extern void VIMSModeSet(uint32_t ui32Base, uint32_t ui32Mode);

//*****************************************************************************
//
//
//*****************************************************************************
extern uint32_t VIMSModeGet(uint32_t ui32Base);

//*****************************************************************************
//
//
//*****************************************************************************
extern void VIMSModeSetBlocking( uint32_t ui32Mode );

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
VIMSLineBufDisable(uint32_t ui32Base)
{
    //
    // Disable line buffers
    //
    HWREG(ui32Base + VIMS_O_CTL) |= VIMS_CTL_IDCODE_LB_DIS_M |
                                        VIMS_CTL_SYSBUS_LB_DIS_M;
}

//*****************************************************************************
//
//
//*****************************************************************************
__STATIC_INLINE void
VIMSLineBufEnable(uint32_t ui32Base)
{
    //
    // Enable linebuffers
    //
    HWREG(ui32Base + VIMS_O_CTL) &= ~(VIMS_CTL_IDCODE_LB_DIS_M |
                                          VIMS_CTL_SYSBUS_LB_DIS_M);
}

//*****************************************************************************
//
// Support for DriverLib in ROM:
// Redirect to implementation in ROM when available.
//
//*****************************************************************************
#if !defined(DRIVERLIB_NOROM) && !defined(DOXYGEN)
    #include <driverlib/rom.h>
    #ifdef ROM_VIMSConfigure
        #undef  VIMSConfigure
        #define VIMSConfigure                   ROM_VIMSConfigure
    #endif
    #ifdef ROM_VIMSModeSet
        #undef  VIMSModeSet
        #define VIMSModeSet                     ROM_VIMSModeSet
    #endif
    #ifdef ROM_VIMSModeGet
        #undef  VIMSModeGet
        #define VIMSModeGet                     ROM_VIMSModeGet
    #endif
    #ifdef ROM_VIMSModeSetBlocking
        #undef  VIMSModeSetBlocking
        #define VIMSModeSetBlocking             ROM_VIMSModeSetBlocking
    #endif
#endif

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

#endif //  __VIMS_H__

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