//*****************************************************************************
//
// epi.h - Prototypes and macros for the EPI module.
//
// Copyright (c) 2008-2009 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 microcontroller products.
// 
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  You may not combine
// this software with "viral" open-source software in order to form a larger
// program.  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 4694 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************

#ifndef __EPI_H__
#define __EPI_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_NONE                   0x00000010
#define EPI_MODE_SDRAM                  0x00000011
#define EPI_MODE_HB8                    0x00000012
#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 EPIConfigNoModeSet()
//
//*****************************************************************************
#define EPI_NONMODE_CLKPIN              0x80000000
#define EPI_NONMODE_CLKSTOP             0x40000000
#define EPI_NONMODE_CLKENA              0x10000000
#define EPI_NONMODE_FRAMEPIN            0x08000000
#define EPI_NONMODE_FRAME50             0x04000000
#define EPI_NONMODE_READWRITE           0x00200000
#define EPI_NONMODE_WRITE2CYCLE         0x00080000
#define EPI_NONMODE_READ2CYCLE          0x00040000
#define EPI_NONMODE_ASIZE_NONE          0x00000000
#define EPI_NONMODE_ASIZE_4             0x00000010
#define EPI_NONMODE_ASIZE_12            0x00000020
#define EPI_NONMODE_ASIZE_20            0x00000030
#define EPI_NONMODE_DSIZE_8             0x00000000
#define EPI_NONMODE_DSIZE_16            0x00000001
#define EPI_NONMODE_DSIZE_24            0x00000002
#define EPI_NONMODE_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_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

//*****************************************************************************
//
// Values that can be passed to EPIConfigSDRAMSet()
//
//*****************************************************************************
#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_512MB         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_512MB         0x0000000C
#define EPI_ADDR_RAM_BASE_NONE          0x00000000
#define EPI_ADDR_RAM_BASE_6             0x00000001
#define EPI_ADDR_RAM_BASE_8             0x00000002

//*****************************************************************************
//
// 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_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_WTFULL              0x00000004
#define EPI_INT_ERR_RSTALL              0x00000002
#define EPI_INT_ERR_TIMEOUT             0x00000001

//*****************************************************************************
//
// API Function prototypes
//
//*****************************************************************************
void EPIModeSet(unsigned long ulBase, unsigned long ulMode);
void EPIDividerSet(unsigned long ulBase, unsigned long ulDivider);
void EPIConfigSDRAMSet(unsigned long ulBase, unsigned long ulConfig,
                       unsigned long ulRefresh);
void EPIConfigNoModeSet(unsigned long ulBase, unsigned long ulConfig,
                        unsigned long ulFrameCount, unsigned long ulMaxWait);
void EPIConfigHB8Set(unsigned long ulBase, unsigned long ulConfig,
                     unsigned long ulMaxWait);
void EPIAddressMapSet(unsigned long ulBase, unsigned long ulMap);
void EPINonBlockingReadConfigure(unsigned long ulBase, unsigned long ulChannel,
                            unsigned long ulDataSize, unsigned long ulAddress);
void EPINonBlockingReadStart(unsigned long ulBase, unsigned long ulChannel,
                             unsigned long ulCount);
void EPINonBlockingReadStop(unsigned long ulBase, unsigned long ulChannel);
unsigned long EPINonBlockingReadCount(unsigned long ulBase,
                                      unsigned long ulChannel);
unsigned long EPINonBlockingReadAvail(unsigned long ulBase);
unsigned long EPINonBlockingReadGet32(unsigned long ulBase,
                                      unsigned long ulCount,
                                      unsigned long *pulBuf);
unsigned long EPINonBlockingReadGet16(unsigned long ulBase,
                                      unsigned long ulCount,
                                      unsigned short *pusBuf);
unsigned long EPINonBlockingReadGet8(unsigned long ulBase,
                                     unsigned long ulCount,
                                     unsigned char *pucBuf);
void EPIFIFOConfig(unsigned long ulBase, unsigned long ulConfig);
unsigned long EPINonBlockingWriteCount(unsigned long ulBase);
void EPIIntEnable(unsigned long ulBase, unsigned long ulIntFlags);
void EPIIntDisable(unsigned long ulBase, unsigned long ulIntFlags);
unsigned long EPIIntStatus(unsigned long ulBase, tBoolean bMasked);
unsigned long EPIIntErrorStatus(unsigned long ulBase);
void EPIIntErrorClear(unsigned long ulBase, unsigned long ulErrFlags);
void EPIIntRegister(unsigned long ulBase, void (*pfnHandler)(void));
void EPIIntUnregister(unsigned long ulBase);

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

#endif //  __EPI_H__