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u-boot/cpu/ixp/npe/include/IxNpeMhConfig_p.h

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/**
* @file IxNpeMhConfig_p.h
*
* @author Intel Corporation
* @date 18 Jan 2002
*
* @brief This file contains the private API for the Configuration module.
*
*
* @par
* IXP400 SW Release version 2.0
*
* -- Copyright Notice --
*
* @par
* Copyright 2001-2005, Intel Corporation.
* All rights reserved.
*
* @par
* 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 Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* @par
* 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.
*
* @par
* -- End of Copyright Notice --
*/
/**
* @defgroup IxNpeMhConfig_p IxNpeMhConfig_p
*
* @brief The private API for the Configuration module.
*
* @{
*/
#ifndef IXNPEMHCONFIG_P_H
#define IXNPEMHCONFIG_P_H
#include "IxOsal.h"
#include "IxNpeMh.h"
#include "IxNpeMhMacros_p.h"
/*
* inline definition
*/
/* enable function inlining for performances */
#ifdef IXNPEMHSOLICITEDCBMGR_C
/* Non-inline functions will be defined in this translation unit.
Reason is that in GNU Compiler, if the Optimization is turn off, all extern inline
functions will not be compiled.
*/
# ifndef __wince
# ifndef IXNPEMHCONFIG_INLINE
# define IXNPEMHCONFIG_INLINE
# endif
# else
# ifndef IXNPEMHCONFIG_INLINE
# define IXNPEMHCONFIG_INLINE IX_OSAL_INLINE_EXTERN
# endif
# endif /* __wince*/
#else
# ifndef IXNPEMHCONFIG_INLINE
# define IXNPEMHCONFIG_INLINE IX_OSAL_INLINE_EXTERN
# endif /* IXNPEMHCONFIG_INLINE */
#endif /* IXNPEMHSOLICITEDCBMGR_C */
/*
* Typedefs and #defines, etc.
*/
typedef void (*IxNpeMhConfigIsr) (int); /**< ISR function pointer */
/**
* @struct IxNpeMhConfigNpeInfo
*
* @brief This structure is used to maintain the configuration information
* associated with an NPE.
*/
typedef struct
{
IxOsalMutex mutex; /**< mutex */
UINT32 interruptId; /**< interrupt ID */
UINT32 virtualRegisterBase; /**< register virtual base address */
UINT32 statusRegister; /**< status register virtual address */
UINT32 controlRegister; /**< control register virtual address */
UINT32 inFifoRegister; /**< inFIFO register virutal address */
UINT32 outFifoRegister; /**< outFIFO register virtual address */
IxNpeMhConfigIsr isr; /**< isr routine for handling interrupt */
BOOL oldInterruptState; /**< old interrupt state (TRUE => enabled) */
} IxNpeMhConfigNpeInfo;
/*
* #defines for function return types, etc.
*/
/**< NPE register base address */
#define IX_NPEMH_NPE_BASE (IX_OSAL_IXP400_PERIPHERAL_PHYS_BASE)
#define IX_NPEMH_NPEA_OFFSET (0x6000) /**< NPE-A register base offset */
#define IX_NPEMH_NPEB_OFFSET (0x7000) /**< NPE-B register base offset */
#define IX_NPEMH_NPEC_OFFSET (0x8000) /**< NPE-C register base offset */
#define IX_NPEMH_NPESTAT_OFFSET (0x002C) /**< NPE status register offset */
#define IX_NPEMH_NPECTL_OFFSET (0x0030) /**< NPE control register offset */
#define IX_NPEMH_NPEFIFO_OFFSET (0x0038) /**< NPE FIFO register offset */
/** NPE-A register base address */
#define IX_NPEMH_NPEA_BASE (IX_NPEMH_NPE_BASE + IX_NPEMH_NPEA_OFFSET)
/** NPE-B register base address */
#define IX_NPEMH_NPEB_BASE (IX_NPEMH_NPE_BASE + IX_NPEMH_NPEB_OFFSET)
/** NPE-C register base address */
#define IX_NPEMH_NPEC_BASE (IX_NPEMH_NPE_BASE + IX_NPEMH_NPEC_OFFSET)
/* NPE-A configuration */
/** NPE-A interrupt */
#define IX_NPEMH_NPEA_INT (IX_OSAL_IXP400_NPEA_IRQ_LVL)
/** NPE-A FIFO register */
#define IX_NPEMH_NPEA_FIFO (IX_NPEMH_NPEA_BASE + IX_NPEMH_NPEFIFO_OFFSET)
/** NPE-A control register */
#define IX_NPEMH_NPEA_CTL (IX_NPEMH_NPEA_BASE + IX_NPEMH_NPECTL_OFFSET)
/** NPE-A status register */
#define IX_NPEMH_NPEA_STAT (IX_NPEMH_NPEA_BASE + IX_NPEMH_NPESTAT_OFFSET)
/* NPE-B configuration */
/** NPE-B interrupt */
#define IX_NPEMH_NPEB_INT (IX_OSAL_IXP400_NPEB_IRQ_LVL)
/** NPE-B FIFO register */
#define IX_NPEMH_NPEB_FIFO (IX_NPEMH_NPEB_BASE + IX_NPEMH_NPEFIFO_OFFSET)
/** NPE-B control register */
#define IX_NPEMH_NPEB_CTL (IX_NPEMH_NPEB_BASE + IX_NPEMH_NPECTL_OFFSET)
/** NPE-B status register */
#define IX_NPEMH_NPEB_STAT (IX_NPEMH_NPEB_BASE + IX_NPEMH_NPESTAT_OFFSET)
/* NPE-C configuration */
/** NPE-C interrupt */
#define IX_NPEMH_NPEC_INT (IX_OSAL_IXP400_NPEC_IRQ_LVL)
/** NPE-C FIFO register */
#define IX_NPEMH_NPEC_FIFO (IX_NPEMH_NPEC_BASE + IX_NPEMH_NPEFIFO_OFFSET)
/** NPE-C control register */
#define IX_NPEMH_NPEC_CTL (IX_NPEMH_NPEC_BASE + IX_NPEMH_NPECTL_OFFSET)
/** NPE-C status register */
#define IX_NPEMH_NPEC_STAT (IX_NPEMH_NPEC_BASE + IX_NPEMH_NPESTAT_OFFSET)
/* NPE control register bit definitions */
#define IX_NPEMH_NPE_CTL_OFE (1 << 16) /**< OutFifoEnable */
#define IX_NPEMH_NPE_CTL_IFE (1 << 17) /**< InFifoEnable */
#define IX_NPEMH_NPE_CTL_OFEWE (1 << 24) /**< OutFifoEnableWriteEnable */
#define IX_NPEMH_NPE_CTL_IFEWE (1 << 25) /**< InFifoEnableWriteEnable */
/* NPE status register bit definitions */
#define IX_NPEMH_NPE_STAT_OFNE (1 << 16) /**< OutFifoNotEmpty */
#define IX_NPEMH_NPE_STAT_IFNF (1 << 17) /**< InFifoNotFull */
#define IX_NPEMH_NPE_STAT_OFNF (1 << 18) /**< OutFifoNotFull */
#define IX_NPEMH_NPE_STAT_IFNE (1 << 19) /**< InFifoNotEmpty */
#define IX_NPEMH_NPE_STAT_MBINT (1 << 20) /**< Mailbox interrupt */
#define IX_NPEMH_NPE_STAT_IFINT (1 << 21) /**< InFifo interrupt */
#define IX_NPEMH_NPE_STAT_OFINT (1 << 22) /**< OutFifo interrupt */
#define IX_NPEMH_NPE_STAT_WFINT (1 << 23) /**< WatchFifo interrupt */
/**
* Variable declarations. Externs are followed by static variables.
*/
extern IxNpeMhConfigNpeInfo ixNpeMhConfigNpeInfo[IX_NPEMH_NUM_NPES];
/*
* Prototypes for interface functions.
*/
/**
* @fn void ixNpeMhConfigInitialize (
IxNpeMhNpeInterrupts npeInterrupts)
*
* @brief This function initialises the Configuration module.
*
* @param IxNpeMhNpeInterrupts npeInterrupts (in) - whether or not to
* service the NPE "outFIFO not empty" interrupts.
*
* @return No return value.
*/
void ixNpeMhConfigInitialize (
IxNpeMhNpeInterrupts npeInterrupts);
/**
* @fn void ixNpeMhConfigUninit (void)
*
* @brief This function uninitialises the Configuration module.
*
* @return No return value.
*/
void ixNpeMhConfigUninit (void);
/**
* @fn void ixNpeMhConfigIsrRegister (
IxNpeMhNpeId npeId,
IxNpeMhConfigIsr isr)
*
* @brief This function registers an ISR to handle NPE "outFIFO not
* empty" interrupts.
*
* @param IxNpeMhNpeId npeId (in) - the ID of the NPE whose interrupt will
* be handled.
* @param IxNpeMhConfigIsr isr (in) - the ISR function pointer that the
* interrupt will trigger.
*
* @return No return value.
*/
void ixNpeMhConfigIsrRegister (
IxNpeMhNpeId npeId,
IxNpeMhConfigIsr isr);
/**
* @fn BOOL ixNpeMhConfigNpeInterruptEnable (
IxNpeMhNpeId npeId)
*
* @brief This function enables a NPE's "outFIFO not empty" interrupt.
*
* @param IxNpeMhNpeId npeId (in) - the ID of the NPE whose interrupt will
* be enabled.
*
* @return Returns the previous state of the interrupt (TRUE => enabled).
*/
BOOL ixNpeMhConfigNpeInterruptEnable (
IxNpeMhNpeId npeId);
/**
* @fn BOOL ixNpeMhConfigNpeInterruptDisable (
IxNpeMhNpeId npeId)
*
* @brief This function disables a NPE's "outFIFO not empty" interrupt
*
* @param IxNpeMhNpeId npeId (in) - the ID of the NPE whose interrupt will
* be disabled.
*
* @return Returns the previous state of the interrupt (TRUE => enabled).
*/
BOOL ixNpeMhConfigNpeInterruptDisable (
IxNpeMhNpeId npeId);
/**
* @fn IxNpeMhMessageId ixNpeMhConfigMessageIdGet (
IxNpeMhMessage message)
*
* @brief This function gets the ID of a message.
*
* @param IxNpeMhMessage message (in) - the message to get the ID of.
*
* @return the ID of the message
*/
IxNpeMhMessageId ixNpeMhConfigMessageIdGet (
IxNpeMhMessage message);
/**
* @fn BOOL ixNpeMhConfigNpeIdIsValid (
IxNpeMhNpeId npeId)
*
* @brief This function checks to see if a NPE ID is valid.
*
* @param IxNpeMhNpeId npeId (in) - the NPE ID to validate.
*
* @return True if the NPE ID is valid, otherwise False.
*/
BOOL ixNpeMhConfigNpeIdIsValid (
IxNpeMhNpeId npeId);
/**
* @fn void ixNpeMhConfigLockGet (
IxNpeMhNpeId npeId)
*
* @brief This function gets a lock for exclusive NPE interaction, and
* disables the NPE's "outFIFO not empty" interrupt.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which to get the
* lock and disable its interrupt.
*
* @return No return value.
*/
void ixNpeMhConfigLockGet (
IxNpeMhNpeId npeId);
/**
* @fn void ixNpeMhConfigLockRelease (
IxNpeMhNpeId npeId)
*
* @brief This function releases a lock for exclusive NPE interaction, and
* enables the NPE's "outFIFO not empty" interrupt.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which to release
* the lock and enable its interrupt.
*
* @return No return value.
*/
void ixNpeMhConfigLockRelease (
IxNpeMhNpeId npeId);
/**
* @fn BOOL ixNpeMhConfigInFifoIsEmpty (
IxNpeMhNpeId npeId)
*
* @brief This inline function checks if a NPE's inFIFO is empty.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which the inFIFO
* will be checked.
*
* @return True if the inFIFO is empty, otherwise False.
*/
IXNPEMHCONFIG_INLINE BOOL ixNpeMhConfigInFifoIsEmpty (
IxNpeMhNpeId npeId);
/**
* @fn BOOL ixNpeMhConfigInFifoIsFull (
IxNpeMhNpeId npeId)
*
* @brief This inline function checks if a NPE's inFIFO is full.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which the inFIFO
* will be checked.
*
* @return True if the inFIFO is full, otherwise False.
*/
IXNPEMHCONFIG_INLINE BOOL ixNpeMhConfigInFifoIsFull (
IxNpeMhNpeId npeId);
/**
* @fn BOOL ixNpeMhConfigOutFifoIsEmpty (
IxNpeMhNpeId npeId)
*
* @brief This inline function checks if a NPE's outFIFO is empty.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which the outFIFO
* will be checked.
*
* @return True if the outFIFO is empty, otherwise False.
*/
IXNPEMHCONFIG_INLINE BOOL ixNpeMhConfigOutFifoIsEmpty (
IxNpeMhNpeId npeId);
/**
* @fn BOOL ixNpeMhConfigOutFifoIsFull (
IxNpeMhNpeId npeId)
*
* @brief This inline function checks if a NPE's outFIFO is full.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which the outFIFO
* will be checked.
*
* @return True if the outFIFO is full, otherwise False.
*/
IXNPEMHCONFIG_INLINE BOOL ixNpeMhConfigOutFifoIsFull (
IxNpeMhNpeId npeId);
/**
* @fn IX_STATUS ixNpeMhConfigInFifoWrite (
IxNpeMhNpeId npeId,
IxNpeMhMessage message)
*
* @brief This function writes a message to a NPE's inFIFO. The caller
* must first check that the NPE's inFifo is not full. After writing the first
* word of the message, this function will keep polling NPE's inFIFO is not
* full to write the second word. If inFIFO is not available after maximum
* retries (IX_NPE_MH_MAX_NUM_OF_RETRIES), this function will return TIMEOUT
* status to indicate NPE hang / halt.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which the inFIFO
* will be written to.
* @param IxNpeMhMessage message (in) - The message to write.
*
* @return The function returns a status indicating success, failure or timeout.
*/
IX_STATUS ixNpeMhConfigInFifoWrite (
IxNpeMhNpeId npeId,
IxNpeMhMessage message);
/**
* @fn IX_STATUS ixNpeMhConfigOutFifoRead (
IxNpeMhNpeId npeId,
IxNpeMhMessage *message)
*
* @brief This function reads a message from a NPE's outFIFO. The caller
* must first check that the NPE's outFifo is not empty. After reading the first
* word of the message, this function will keep polling NPE's outFIFO is not
* empty to read the second word. If outFIFO is empty after maximum
* retries (IX_NPE_MH_MAX_NUM_OF_RETRIES), this function will return TIMEOUT
* status to indicate NPE hang / halt.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE for which the outFIFO
* will be read from.
* @param IxNpeMhMessage message (out) - The message read.
*
* @return The function returns a status indicating success, failure or timeout.
*/
IX_STATUS ixNpeMhConfigOutFifoRead (
IxNpeMhNpeId npeId,
IxNpeMhMessage *message);
/**
* @fn void ixNpeMhConfigShow (
IxNpeMhNpeId npeId)
*
* @brief This function will display the current state of the Configuration
* module.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE to display state
* information for.
*
* @return No return value.
*/
void ixNpeMhConfigShow (
IxNpeMhNpeId npeId);
/**
* @fn void ixNpeMhConfigShowReset (
IxNpeMhNpeId npeId)
*
* @brief This function will reset the current state of the Configuration
* module.
*
* @param IxNpeMhNpeId npeId (in) - The ID of the NPE to reset state
* information for.
*
* @return No return value.
*/
void ixNpeMhConfigShowReset (
IxNpeMhNpeId npeId);
/*
* Inline functions
*/
/*
* This inline function checks if a NPE's inFIFO is empty.
*/
IXNPEMHCONFIG_INLINE
BOOL ixNpeMhConfigInFifoIsEmpty (
IxNpeMhNpeId npeId)
{
UINT32 ifne;
volatile UINT32 *statusReg =
(UINT32 *)ixNpeMhConfigNpeInfo[npeId].statusRegister;
/* get the IFNE (InFifoNotEmpty) bit of the status register */
IX_NPEMH_REGISTER_READ_BITS (statusReg, &ifne, IX_NPEMH_NPE_STAT_IFNE);
/* if the IFNE status bit is unset then the inFIFO is empty */
return (ifne == 0);
}
/*
* This inline function checks if a NPE's inFIFO is full.
*/
IXNPEMHCONFIG_INLINE
BOOL ixNpeMhConfigInFifoIsFull (
IxNpeMhNpeId npeId)
{
UINT32 ifnf;
volatile UINT32 *statusReg =
(UINT32 *)ixNpeMhConfigNpeInfo[npeId].statusRegister;
/* get the IFNF (InFifoNotFull) bit of the status register */
IX_NPEMH_REGISTER_READ_BITS (statusReg, &ifnf, IX_NPEMH_NPE_STAT_IFNF);
/* if the IFNF status bit is unset then the inFIFO is full */
return (ifnf == 0);
}
/*
* This inline function checks if a NPE's outFIFO is empty.
*/
IXNPEMHCONFIG_INLINE
BOOL ixNpeMhConfigOutFifoIsEmpty (
IxNpeMhNpeId npeId)
{
UINT32 ofne;
volatile UINT32 *statusReg =
(UINT32 *)ixNpeMhConfigNpeInfo[npeId].statusRegister;
/* get the OFNE (OutFifoNotEmpty) bit of the status register */
IX_NPEMH_REGISTER_READ_BITS (statusReg, &ofne, IX_NPEMH_NPE_STAT_OFNE);
/* if the OFNE status bit is unset then the outFIFO is empty */
return (ofne == 0);
}
/*
* This inline function checks if a NPE's outFIFO is full.
*/
IXNPEMHCONFIG_INLINE
BOOL ixNpeMhConfigOutFifoIsFull (
IxNpeMhNpeId npeId)
{
UINT32 ofnf;
volatile UINT32 *statusReg =
(UINT32 *)ixNpeMhConfigNpeInfo[npeId].statusRegister;
/* get the OFNF (OutFifoNotFull) bit of the status register */
IX_NPEMH_REGISTER_READ_BITS (statusReg, &ofnf, IX_NPEMH_NPE_STAT_OFNF);
/* if the OFNF status bit is unset then the outFIFO is full */
return (ofnf == 0);
}
#endif /* IXNPEMHCONFIG_P_H */
/**
* @} defgroup IxNpeMhConfig_p
*/