epi.h

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//*****************************************************************************
//
// epi.h - Prototypes and macros for the EPI module.
//
// Copyright (c) 2008-2017 Texas Instruments Incorporated.  All rights reserved.
// Software License Agreement
//
//   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.
//
//*****************************************************************************

#ifndef __DRIVERLIB_EPI_H__
#define __DRIVERLIB_EPI_H__

#include <stdint.h>
#include <stdbool.h>

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

//*****************************************************************************
//
// Values that can be passed to EPIModeSet()
//
//*****************************************************************************
#define EPI_MODE_GENERAL        0x00000010
#define EPI_MODE_SDRAM          0x00000011
#define EPI_MODE_HB8            0x00000012
#define EPI_MODE_HB16           0x00000013
#define EPI_MODE_DISABLE        0x00000000

//*****************************************************************************
//
// Values that can be passed to EPIConfigSDRAMSet()
//
//*****************************************************************************
#define EPI_SDRAM_CORE_FREQ_0_15                                              \
                                0x00000000
#define EPI_SDRAM_CORE_FREQ_15_30                                             \
                                0x40000000
#define EPI_SDRAM_CORE_FREQ_30_50                                             \
                                0x80000000
#define EPI_SDRAM_CORE_FREQ_50_100                                            \
                                0xC0000000
#define EPI_SDRAM_LOW_POWER     0x00000200
#define EPI_SDRAM_FULL_POWER    0x00000000
#define EPI_SDRAM_SIZE_64MBIT   0x00000000
#define EPI_SDRAM_SIZE_128MBIT  0x00000001
#define EPI_SDRAM_SIZE_256MBIT  0x00000002
#define EPI_SDRAM_SIZE_512MBIT  0x00000003

//*****************************************************************************
//
// Values that can be passed to EPIConfigGPModeSet()
//
//*****************************************************************************
#define EPI_GPMODE_CLKPIN       0x80000000
#define EPI_GPMODE_CLKGATE      0x40000000
#define EPI_GPMODE_FRAME50      0x04000000
#define EPI_GPMODE_WRITE2CYCLE  0x00080000
#define EPI_GPMODE_ASIZE_NONE   0x00000000
#define EPI_GPMODE_ASIZE_4      0x00000010
#define EPI_GPMODE_ASIZE_12     0x00000020
#define EPI_GPMODE_ASIZE_20     0x00000030
#define EPI_GPMODE_DSIZE_8      0x00000000
#define EPI_GPMODE_DSIZE_16     0x00000001
#define EPI_GPMODE_DSIZE_24     0x00000002
#define EPI_GPMODE_DSIZE_32     0x00000003

//*****************************************************************************
//
// Values that can be passed to EPIConfigHB8ModeSet()
//
//*****************************************************************************
#define EPI_HB8_USE_TXEMPTY     0x00800000
#define EPI_HB8_USE_RXFULL      0x00400000
#define EPI_HB8_WRHIGH          0x00200000
#define EPI_HB8_RDHIGH          0x00100000
#define EPI_HB8_ALE_HIGH        0x00080000
#define EPI_HB8_ALE_LOW         0x00000000
#define EPI_HB8_WRWAIT_0        0x00000000
#define EPI_HB8_WRWAIT_1        0x00000040
#define EPI_HB8_WRWAIT_2        0x00000080
#define EPI_HB8_WRWAIT_3        0x000000C0
#define EPI_HB8_RDWAIT_0        0x00000000
#define EPI_HB8_RDWAIT_1        0x00000010
#define EPI_HB8_RDWAIT_2        0x00000020
#define EPI_HB8_RDWAIT_3        0x00000030
#define EPI_HB8_MODE_ADMUX      0x00000000
#define EPI_HB8_MODE_ADDEMUX    0x00000001
#define EPI_HB8_MODE_SRAM       0x00000002
#define EPI_HB8_MODE_FIFO       0x00000003
#define EPI_HB8_CSCFG_ALE       0x00000000
#define EPI_HB8_CSCFG_CS        0x00000200
#define EPI_HB8_CSCFG_DUAL_CS   0x00000400
#define EPI_HB8_CSCFG_ALE_DUAL_CS                                             \
                                0x00000600
#define EPI_HB8_CSCFG_ALE_SINGLE_CS                                           \
                                0x00001000
#define EPI_HB8_CSCFG_QUAD_CS   0x00001200
#define EPI_HB8_CSCFG_ALE_QUAD_CS                                             \
                                0x00001400
#define EPI_HB8_CSBAUD          0x00000800
#define EPI_HB8_CLOCK_GATE      0x80000000
#define EPI_HB8_CLOCK_GATE_IDLE                                               \
                                0x40000000
#define EPI_HB8_CLOCK_INVERT    0x20000000
#define EPI_HB8_IN_READY_EN     0x10000000
#define EPI_HB8_IN_READY_EN_INVERT                                            \
                                0x18000000
#define EPI_HB8_CSCFG_MASK      0x00001600

//*****************************************************************************
//
// Values that can be passed to EPIConfigHB16ModeSet()
//
//*****************************************************************************
#define EPI_HB16_USE_TXEMPTY    0x00800000
#define EPI_HB16_USE_RXFULL     0x00400000
#define EPI_HB16_WRHIGH         0x00200000
#define EPI_HB16_RDHIGH         0x00100000
#define EPI_HB16_WRWAIT_0       0x00000000
#define EPI_HB16_WRWAIT_1       0x00000040
#define EPI_HB16_WRWAIT_2       0x00000080
#define EPI_HB16_WRWAIT_3       0x000000C0
#define EPI_HB16_RDWAIT_0       0x00000000
#define EPI_HB16_RDWAIT_1       0x00000010
#define EPI_HB16_RDWAIT_2       0x00000020
#define EPI_HB16_RDWAIT_3       0x00000030
#define EPI_HB16_MODE_ADMUX     0x00000000
#define EPI_HB16_MODE_ADDEMUX   0x00000001
#define EPI_HB16_MODE_SRAM      0x00000002
#define EPI_HB16_MODE_FIFO      0x00000003
#define EPI_HB16_BSEL           0x00000004
#define EPI_HB16_CSCFG_ALE      0x00000000
#define EPI_HB16_CSCFG_CS       0x00000200
#define EPI_HB16_CSCFG_DUAL_CS  0x00000400
#define EPI_HB16_CSCFG_ALE_DUAL_CS                                            \
                                0x00000600
#define EPI_HB16_CSCFG_ALE_SINGLE_CS                                          \
                                0x00001000
#define EPI_HB16_CSCFG_QUAD_CS  0x00001200
#define EPI_HB16_CSCFG_ALE_QUAD_CS                                            \
                                0x00001400
#define EPI_HB16_CLOCK_GATE     0x80000000
#define EPI_HB16_CLOCK_GATE_IDLE                                              \
                                0x40000000
#define EPI_HB16_CLOCK_INVERT   0x20000000
#define EPI_HB16_IN_READY_EN    0x10000000
#define EPI_HB16_IN_READY_EN_INVERTED                                         \
                                0x18000000
#define EPI_HB16_ALE_HIGH       0x00080000
#define EPI_HB16_ALE_LOW        0x00000000
#define EPI_HB16_BURST_TRAFFIC  0x00010000
#define EPI_HB16_CSBAUD         0x00000800
#define EPI_HB16_CSCFG_MASK     0x00001600

//*****************************************************************************
//
// Values that can be passed to EPIConfigHB8TimingSet().
//
//*****************************************************************************
#define EPI_HB8_IN_READY_DELAY_1                                              \
                                0x01000000
#define EPI_HB8_IN_READY_DELAY_2                                              \
                                0x02000000
#define EPI_HB8_IN_READY_DELAY_3                                              \
                                0x03000000
#define EPI_HB8_CAP_WIDTH_1     0x00001000
#define EPI_HB8_CAP_WIDTH_2     0x00002000
#define EPI_HB8_WRWAIT_MINUS_DISABLE                                          \
                                0x00000000
#define EPI_HB8_WRWAIT_MINUS_ENABLE                                           \
                                0x00000010
#define EPI_HB8_RDWAIT_MINUS_DISABLE                                          \
                                0x00000000
#define EPI_HB8_RDWAIT_MINUS_ENABLE                                           \
                                0x00000001

//*****************************************************************************
//
// Values that can be passed to EPIConfigHB16TimingSet().
//
//*****************************************************************************
#define EPI_HB16_IN_READY_DELAY_1                                             \
                                0x01000000
#define EPI_HB16_IN_READY_DELAY_2                                             \
                                0x02000000
#define EPI_HB16_IN_READY_DELAY_3                                             \
                                0x03000000
#define EPI_HB16_PSRAM_NO_LIMIT 0x00000000
#define EPI_HB16_PSRAM_128      0x00010000
#define EPI_HB16_PSRAM_256      0x00020000
#define EPI_HB16_PSRAM_512      0x00030000
#define EPI_HB16_PSRAM_1024     0x00040000
#define EPI_HB16_PSRAM_2048     0x00050000
#define EPI_HB16_PSRAM_4096     0x00060000
#define EPI_HB16_PSRAM_8192     0x00070000
#define EPI_HB16_CAP_WIDTH_1    0x00001000
#define EPI_HB16_CAP_WIDTH_2    0x00002000
#define EPI_HB16_WRWAIT_MINUS_DISABLE                                         \
                                0x00000000
#define EPI_HB16_WRWAIT_MINUS_ENABLE                                          \
                                0x00000008
#define EPI_HB16_RDWAIT_MINUS_DISABLE                                         \
                                0x00000000
#define EPI_HB16_RDWAIT_MINUS_ENABLE                                          \
                                0x00000001

//*****************************************************************************
//
// Values that can be passed to EPIAddressMapSet().
//
//*****************************************************************************
#define EPI_ADDR_PER_SIZE_256B  0x00000000
#define EPI_ADDR_PER_SIZE_64KB  0x00000040
#define EPI_ADDR_PER_SIZE_16MB  0x00000080
#define EPI_ADDR_PER_SIZE_256MB 0x000000C0
#define EPI_ADDR_PER_BASE_NONE  0x00000000
#define EPI_ADDR_PER_BASE_A     0x00000010
#define EPI_ADDR_PER_BASE_C     0x00000020
#define EPI_ADDR_RAM_SIZE_256B  0x00000000
#define EPI_ADDR_RAM_SIZE_64KB  0x00000004
#define EPI_ADDR_RAM_SIZE_16MB  0x00000008
#define EPI_ADDR_RAM_SIZE_256MB 0x0000000C
#define EPI_ADDR_RAM_BASE_NONE  0x00000000
#define EPI_ADDR_RAM_BASE_6     0x00000001
#define EPI_ADDR_RAM_BASE_8     0x00000002
#define EPI_ADDR_QUAD_MODE      0x00000033
#define EPI_ADDR_CODE_SIZE_256B 0x00000000
#define EPI_ADDR_CODE_SIZE_64KB 0x00000400
#define EPI_ADDR_CODE_SIZE_16MB 0x00000800
#define EPI_ADDR_CODE_SIZE_256MB                                              \
                                0x00000C00
#define EPI_ADDR_CODE_BASE_NONE 0x00000000
#define EPI_ADDR_CODE_BASE_1    0x00000100

//*****************************************************************************
//
// Values that can be passed to EPINonBlockingReadConfigure()
//
//*****************************************************************************
#define EPI_NBCONFIG_SIZE_8     1
#define EPI_NBCONFIG_SIZE_16    2
#define EPI_NBCONFIG_SIZE_32    3

//*****************************************************************************
//
// Values that can be passed to EPIFIFOConfig()
//
//*****************************************************************************
#define EPI_FIFO_CONFIG_WTFULLERR                                             \
                                0x00020000
#define EPI_FIFO_CONFIG_RSTALLERR                                             \
                                0x00010000
#define EPI_FIFO_CONFIG_TX_EMPTY                                              \
                                0x00000000
#define EPI_FIFO_CONFIG_TX_1_4  0x00000020
#define EPI_FIFO_CONFIG_TX_1_2  0x00000030
#define EPI_FIFO_CONFIG_TX_3_4  0x00000040
#define EPI_FIFO_CONFIG_RX_1_8  0x00000001
#define EPI_FIFO_CONFIG_RX_1_4  0x00000002
#define EPI_FIFO_CONFIG_RX_1_2  0x00000003
#define EPI_FIFO_CONFIG_RX_3_4  0x00000004
#define EPI_FIFO_CONFIG_RX_7_8  0x00000005
#define EPI_FIFO_CONFIG_RX_FULL 0x00000006

//*****************************************************************************
//
// Values that can be passed to EPIIntEnable(), EPIIntDisable(), or returned
// as flags from EPIIntStatus()
//
//*****************************************************************************
#define EPI_INT_DMA_TX_DONE     0x00000010
#define EPI_INT_DMA_RX_DONE     0x00000008
#define EPI_INT_TXREQ           0x00000004
#define EPI_INT_RXREQ           0x00000002
#define EPI_INT_ERR             0x00000001

//*****************************************************************************
//
// Values that can be passed to EPIIntErrorClear(), or returned as flags from
// EPIIntErrorStatus()
//
//*****************************************************************************
#define EPI_INT_ERR_DMAWRIC     0x00000010
#define EPI_INT_ERR_DMARDIC     0x00000008
#define EPI_INT_ERR_WTFULL      0x00000004
#define EPI_INT_ERR_RSTALL      0x00000002
#define EPI_INT_ERR_TIMEOUT     0x00000001

#ifdef rvmdk
//*****************************************************************************
//
// Keil case.
//
//*****************************************************************************
inline void
EPIWorkaroundWordWrite(uint32_t *pui32Addr, uint32_t ui32Value)
{
  uint32_t ui32Scratch;

    __asm
    {
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        NOP

        //
        // Perform the write we're actually interested in.
        //
        STR ui32Value, [pui32Addr]

        //
        // Read from SRAM to ensure that we don't have an EPI write followed by
        // a flash read.
        //
        LDR ui32Scratch, [__current_sp()]
    }
}

inline uint32_t
EPIWorkaroundWordRead(uint32_t *pui32Addr)
{
  uint32_t ui32Value, ui32Scratch;

    __asm
    {
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        NOP

        //
        // Perform the read we're actually interested in.
        //
        LDR ui32Value, [pui32Addr]

        //
        // Read from SRAM to ensure that we don't have an EPI read followed by
        // a flash read.
        //
        LDR ui32Scratch, [__current_sp()]
    }

    return(ui32Value);
}

inline void
EPIWorkaroundHWordWrite(uint16_t *pui16Addr, uint16_t ui16Value)
{
    uint32_t ui32Scratch;

    __asm
    {
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        NOP

        //
        // Perform the write we're actually interested in.
        //
        STRH ui16Value, [pui16Addr]

        //
        // Read from SRAM to ensure that we don't have an EPI write followed by
        // a flash read.
        //
        LDR ui32Scratch, [__current_sp()]
    }
}

inline uint16_t
EPIWorkaroundHWordRead(uint16_t *pui16Addr)
{
    uint32_t ui32Scratch;
    uint16_t ui16Value;

    __asm
    {
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        NOP

        //
        // Perform the read we're actually interested in.
        //
        LDRH ui16Value, [pui16Addr]

        //
        // Read from SRAM to ensure that we don't have an EPI read followed by
        // a flash read.
        //
        LDR ui32Scratch, [__current_sp()]
    }

    return(ui16Value);
}

inline void
EPIWorkaroundByteWrite(uint8_t *pui8Addr, uint8_t ui8Value)
{
  uint32_t ui32Scratch;

    __asm
    {
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        NOP

        //
        // Perform the write we're actually interested in.
        //
        STRB ui8Value, [pui8Addr]

        //
        // Read from SRAM to ensure that we don't have an EPI write followed by
        // a flash read.
        //
        LDR ui32Scratch, [__current_sp()]
    }
}

inline uint8_t
EPIWorkaroundByteRead(uint8_t *pui8Addr)
{
    uint32_t ui32Scratch;
    uint8_t ui8Value;

    __asm
    {
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        NOP

        //
        // Perform the read we're actually interested in.
        //
        LDRB ui8Value, [pui8Addr]

        //
        // Read from SRAM to ensure that we don't have an EPI read followed by
        // a flash read.
        //
        LDR ui32Scratch, [__current_sp()]
    }

    return(ui8Value);
}
#endif

#ifdef __TI_ARM__
//*****************************************************************************
//
// Code Composer Studio versions of these functions can be found in separate
// source file epi_workaround_ccs.s.
//
//*****************************************************************************
extern void EPIWorkaroundWordWrite(uint32_t *pui32Addr, uint32_t ui32Value);
extern uint32_t EPIWorkaroundWordRead(uint32_t *pui32Addr);
extern void EPIWorkaroundHWordWrite(uint16_t *pui16Addr, uint16_t ui16Value);
extern uint16_t EPIWorkaroundHWordRead(uint16_t *pui16Addr);
extern void EPIWorkaroundByteWrite(uint8_t *pui8Addr, uint8_t ui8Value);
extern uint8_t EPIWorkaroundByteRead(uint8_t *pui8Addr);

#endif

#if (defined __GNUC__) || (defined __ICCARM__) || (defined sourcerygxx) || \
    (defined codered)
//*****************************************************************************
//
// GCC-based toolchain and IAR case.
//
//*****************************************************************************
inline void
EPIWorkaroundWordWrite(uint32_t *pui32Addr, uint32_t ui32Value)
{
    volatile register uint32_t ui32Scratch;

    __asm volatile (
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        "    NOP\n"
        "    STR %[value],[%[addr]]\n"
        "    LDR %[scratch],[sp]\n"
         :  [scratch] "=r" (ui32Scratch)
         :  [addr] "r" (pui32Addr), [value] "r" (ui32Value)
     );

    //
    // Keep the compiler from generating a warning.
    //
    ui32Scratch = ui32Scratch;
}

inline uint32_t
EPIWorkaroundWordRead(uint32_t *pui32Addr)
{
    volatile register uint32_t ui32Data, ui32Scratch;

    //
    // ui32Scratch is not used other than to add a padding read following the
    // "real" read.
    //

    __asm volatile(
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        "    NOP\n"
        "    LDR %[ret],[%[addr]]\n"
        "    LDR %[scratch],[sp]\n"
         : [ret] "=r" (ui32Data),
           [scratch] "=r" (ui32Scratch)
         : [addr] "r" (pui32Addr)
    );


    //
    // Keep the compiler from generating a warning.
    //
    ui32Scratch = ui32Scratch;

    return(ui32Data);
}

inline void
EPIWorkaroundHWordWrite(uint16_t *pui16Addr, uint16_t ui16Value)
{
    volatile register uint32_t ui32Scratch;

    __asm volatile (
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        "    NOP\n"
        "    STRH %[value],[%[addr]]\n"
        "    LDR %[scratch],[sp]\n"
         :  [scratch] "=r" (ui32Scratch)
         :  [addr] "r" (pui16Addr), [value] "r" (ui16Value)
     );


    //
    // Keep the compiler from generating a warning.
    //
    ui32Scratch = ui32Scratch;
}

inline uint16_t
EPIWorkaroundHWordRead(uint16_t *pui16Addr)
{
    register uint16_t ui16Data;
    register uint32_t ui32Scratch;

    //
    // ui32Scratch is not used other than to add a padding read following the
    // "real" read.
    //

    __asm volatile(
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        "    NOP\n"
        "    LDRH %[ret],[%[addr]]\n"
        "    LDR %[scratch],[sp]\n"
         : [ret] "=r" (ui16Data),
           [scratch] "=r" (ui32Scratch)
         : [addr] "r" (pui16Addr)
    );

    //
    // Keep the compiler from generating a warning.
    //
    ui32Scratch = ui32Scratch;

    return(ui16Data);
}

inline void
EPIWorkaroundByteWrite(uint8_t *pui8Addr, uint8_t ui8Value)
{
    volatile register uint32_t ui32Scratch;

    __asm volatile (
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        "    NOP\n"
        "    STRB %[value],[%[addr]]\n"
        "    LDR %[scratch],[sp]\n"
         :  [scratch] "=r" (ui32Scratch)
         :  [addr] "r" (pui8Addr), [value] "r" (ui8Value)
     );

    //
    // Keep the compiler from generating a warning.
    //
    ui32Scratch = ui32Scratch;
}

inline uint8_t
EPIWorkaroundByteRead(uint8_t *pui8Addr)
{
    register uint8_t ui8Data;
    register uint32_t ui32Scratch;

    //
    // ui32Scratch is not used other than to add a padding read following the
    // "real" read.
    //

    __asm volatile(
        //
        // Add a NOP to ensure we don’t have a flash read immediately before
        // the EPI read.
        //
        "    NOP\n"
        "    LDRB %[ret],[%[addr]]\n"
        "    LDR %[scratch],[sp]\n"
         : [ret] "=r" (ui8Data),
           [scratch] "=r" (ui32Scratch)
         : [addr] "r" (pui8Addr)
    );

    //
    // Keep the compiler from generating a warning.
    //
    ui32Scratch = ui32Scratch;

    return(ui8Data);
}
#endif

//*****************************************************************************
//
// API Function prototypes
//
//*****************************************************************************
extern void EPIModeSet(uint32_t ui32Base, uint32_t ui32Mode);
extern void EPIDividerSet(uint32_t ui32Base, uint32_t ui32Divider);
extern void EPIDividerCSSet(uint32_t ui32Base, uint32_t ui32CS,
                            uint32_t ui32Divider);
extern void EPIDMATxCount(uint32_t ui32Base, uint32_t ui32Count);
extern void EPIConfigGPModeSet(uint32_t ui32Base, uint32_t ui32Config,
                               uint32_t ui32FrameCount, uint32_t ui32MaxWait);
extern void EPIConfigHB8Set(uint32_t ui32Base, uint32_t ui32Config,
                            uint32_t ui32MaxWait);
extern void EPIConfigHB16Set(uint32_t ui32Base, uint32_t ui32Config,
                             uint32_t ui32MaxWait);
extern void EPIConfigHB8CSSet(uint32_t ui32Base, uint32_t ui32CS,
                               uint32_t ui32Config);
extern void EPIConfigHB16CSSet(uint32_t ui32Base, uint32_t ui32CS,
                                uint32_t ui32Config);
extern void EPIConfigHB8TimingSet(uint32_t ui32Base, uint32_t ui32CS,
                                  uint32_t ui32Config);
extern void EPIConfigHB16TimingSet(uint32_t ui32Base, uint32_t ui32CS,
                                   uint32_t ui32Config);
extern void EPIPSRAMConfigRegSet(uint32_t ui32Base, uint32_t ui32CS,
                                 uint32_t ui32CR);
extern void EPIPSRAMConfigRegRead(uint32_t ui32Base, uint32_t ui32CS);
extern bool EPIPSRAMConfigRegGetNonBlocking(uint32_t ui32Base,
                                                uint32_t ui32CS,
                                                uint32_t *pui32CR);
extern uint32_t EPIPSRAMConfigRegGet(uint32_t ui32Base, uint32_t ui32CS);
extern void EPIConfigSDRAMSet(uint32_t ui32Base, uint32_t ui32Config,
                              uint32_t ui32Refresh);
extern void EPIAddressMapSet(uint32_t ui32Base, uint32_t ui32Map);
extern void EPINonBlockingReadConfigure(uint32_t ui32Base,
                                        uint32_t ui32Channel,
                                        uint32_t ui32DataSize,
                                        uint32_t ui32Address);
extern void EPINonBlockingReadStart(uint32_t ui32Base,
                                    uint32_t ui32Channel,
                                    uint32_t ui32Count);
extern void EPINonBlockingReadStop(uint32_t ui32Base,
                                   uint32_t ui32Channel);
extern uint32_t EPINonBlockingReadCount(uint32_t ui32Base,
                                        uint32_t ui32Channel);
extern uint32_t EPINonBlockingReadAvail(uint32_t ui32Base);
extern uint32_t EPINonBlockingReadGet32(uint32_t ui32Base,
                                        uint32_t ui32Count,
                                        uint32_t *pui32Buf);
extern uint32_t EPINonBlockingReadGet16(uint32_t ui32Base,
                                        uint32_t ui32Count,
                                        uint16_t *pui16Buf);
extern uint32_t EPINonBlockingReadGet8(uint32_t ui32Base,
                                       uint32_t ui32Count,
                                       uint8_t *pui8Buf);
extern void EPIFIFOConfig(uint32_t ui32Base, uint32_t ui32Config);
extern uint32_t EPIWriteFIFOCountGet(uint32_t ui32Base);
extern void EPIIntEnable(uint32_t ui32Base, uint32_t ui32IntFlags);
extern void EPIIntDisable(uint32_t ui32Base, uint32_t ui32IntFlags);
extern uint32_t EPIIntStatus(uint32_t ui32Base, bool bMasked);
extern uint32_t EPIIntErrorStatus(uint32_t ui32Base);
extern void EPIIntErrorClear(uint32_t ui32Base, uint32_t ui32ErrFlags);
extern void EPIIntRegister(uint32_t ui32Base, void (*pfnHandler)(void));
extern void EPIIntUnregister(uint32_t ui32Base);

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

#endif // __DRIVERLIB_EPI_H__