From ba94a1bba3600d387edba7eb451990d9891e1c2f Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Tue, 30 May 2006 15:56:48 +0200 Subject: * Update Intel IXP4xx support - Add IXP4xx NPE ethernet MAC support - Add support for Intel IXDPG425 board - Add support for Prodrive PDNB3 board - Add IRQ support Patch by Stefan Roese, 23 May 2006 [This patch does not include cpu/ixp/npe/IxNpeMicrocode.c which still sufferes from licensing issues. Blame Intel.] --- cpu/ixp/npe/include/IxParityENAcc.h | 785 ++++++++++++++++++++++++++++++++++++ 1 file changed, 785 insertions(+) create mode 100644 cpu/ixp/npe/include/IxParityENAcc.h (limited to 'cpu/ixp/npe/include/IxParityENAcc.h') diff --git a/cpu/ixp/npe/include/IxParityENAcc.h b/cpu/ixp/npe/include/IxParityENAcc.h new file mode 100644 index 000000000..62fe1714f --- /dev/null +++ b/cpu/ixp/npe/include/IxParityENAcc.h @@ -0,0 +1,785 @@ +/** + * @file IxParityENAcc.h + * + * @author Intel Corporation + * @date 24 Mar 2004 + * + * @brief This file contains the public API for the IXP400 Parity Error + * Notifier access component. + * + * @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 IxParityENAcc IXP400 Parity Error Notifier (IxParityENAcc) API + * + * @brief The public API for the Parity Error Notifier + * + * @{ + */ + +#ifndef IXPARITYENACC_H +#define IXPARITYENACC_H + +#ifdef __ixp46X + +#include "IxOsal.h" + +/* + * #defines for function return types, etc. + */ + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccStatus + * + * @brief The status as returend from the API + */ +typedef enum /**< IxParityENAccStatus */ +{ + IX_PARITYENACC_SUCCESS = IX_SUCCESS, /**< The request is successful */ + IX_PARITYENACC_INVALID_PARAMETERS, /**< Invalid or NULL parameters passed */ + IX_PARITYENACC_NOT_INITIALISED, /**< Access layer has not been initialised before accessing the APIs */ + IX_PARITYENACC_ALREADY_INITIALISED, /**< Access layer has already been initialised */ + IX_PARITYENACC_OPERATION_FAILED, /**< Operation did not succeed due to hardware failure */ + IX_PARITYENACC_NO_PARITY /**< No parity condition exits or has already been cleared */ +} IxParityENAccStatus; + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccParityType + * + * @brief Odd or Even Parity Type + */ +typedef enum /**< IxParityENAccParityType */ +{ + IX_PARITYENACC_EVEN_PARITY, /**< Even Parity */ + IX_PARITYENACC_ODD_PARITY /**< Odd Parity */ +} IxParityENAccParityType; + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccConfigOption + * + * @brief The parity error enable/disable configuration option + */ +typedef enum /**< IxParityENAccConfigOption */ +{ + IX_PARITYENACC_DISABLE, /**< Disable parity error detection */ + IX_PARITYENACC_ENABLE /**< Enable parity error detection */ +} IxParityENAccConfigOption; + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccNpeConfig + * + * @brief NPE parity detection is to be enabled/disabled + */ +typedef struct /**< IxParityENAccNpeConfig */ +{ + IxParityENAccConfigOption ideEnabled; /**< NPE IMem, DMem and External */ + IxParityENAccParityType parityOddEven; /**< Parity - Odd or Even */ +} IxParityENAccNpeConfig ; + + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccMcuConfig + * + * @brief MCU pairty detection is to be enabled/disabled + */ +typedef struct /**< IxParityENAccMcuConfig */ +{ + IxParityENAccConfigOption singlebitDetectEnabled; /**< Single-bit parity error detection */ + IxParityENAccConfigOption singlebitCorrectionEnabled; /**< Single-bit parity error correction */ + IxParityENAccConfigOption multibitDetectionEnabled; /**< Multi-bit parity error detection */ +} IxParityENAccMcuConfig ; + + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccEbcConfig + * + * @brief Expansion Bus Controller parity detection is to be enabled or disabled + * + * Note: All the Chip Select(s) and External Masters will have the same parity + */ +typedef struct /**< IxParityENAccEbcConfig */ +{ + IxParityENAccConfigOption ebcCs0Enabled; /**< Expansion Bus Controller - Chip Select 0 */ + IxParityENAccConfigOption ebcCs1Enabled; /**< Expansion Bus Controller - Chip Select 1 */ + IxParityENAccConfigOption ebcCs2Enabled; /**< Expansion Bus Controller - Chip Select 2 */ + IxParityENAccConfigOption ebcCs3Enabled; /**< Expansion Bus Controller - Chip Select 3 */ + IxParityENAccConfigOption ebcCs4Enabled; /**< Expansion Bus Controller - Chip Select 4 */ + IxParityENAccConfigOption ebcCs5Enabled; /**< Expansion Bus Controller - Chip Select 5 */ + IxParityENAccConfigOption ebcCs6Enabled; /**< Expansion Bus Controller - Chip Select 6 */ + IxParityENAccConfigOption ebcCs7Enabled; /**< Expansion Bus Controller - Chip Select 7 */ + IxParityENAccConfigOption ebcExtMstEnabled; /**< External Master on Expansion bus */ + IxParityENAccParityType parityOddEven; /**< Parity - Odd or Even */ +} IxParityENAccEbcConfig ; + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccHWParityConfig + * + * @brief Parity error configuration of the Hardware Blocks + */ +typedef struct /**< IxParityENAccHWParityConfig */ +{ + IxParityENAccNpeConfig npeAConfig; /**< NPE A parity detection is to be enabled/disabled */ + IxParityENAccNpeConfig npeBConfig; /**< NPE B parity detection is to be enabled/disabled */ + IxParityENAccNpeConfig npeCConfig; /**< NPE C parity detection is to be enabled/disabled */ + IxParityENAccMcuConfig mcuConfig; /**< MCU pairty detection is to be enabled/disabled */ + IxParityENAccConfigOption swcpEnabled; /**< SWCP parity detection is to be enabled */ + IxParityENAccConfigOption aqmEnabled; /**< AQM parity detection is to be enabled */ + IxParityENAccEbcConfig ebcConfig; /**< Expansion Bus Controller parity detection is to be enabled/disabled */ +} IxParityENAccHWParityConfig; + + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccNpeParityErrorStats + * + * @brief NPE parity error statistics + */ +typedef struct /* IxParityENAccNpeParityErrorStats */ +{ + UINT32 parityErrorsIMem; /**< Parity errors in Instruction Memory */ + UINT32 parityErrorsDMem; /**< Parity errors in Data Memory */ + UINT32 parityErrorsExternal; /**< Parity errors in NPE External Entities */ +} IxParityENAccNpeParityErrorStats; + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccMcuParityErrorStats + * + * @brief DDR Memory Control Unit parity error statistics + * + * Note: There could be two outstanding parity errors at any given time whose address + * details captured. If there is no room for the new interrupt then it would be treated + * as overflow parity condition. + */ +typedef struct /* IxParityENAccMcuParityErrorStats */ +{ + UINT32 parityErrorsSingleBit; /**< Parity errors of the type Single-Bit */ + UINT32 parityErrorsMultiBit; /**< Parity errors of the type Multi-Bit */ + UINT32 parityErrorsOverflow; /**< Parity errors when more than two parity errors occured */ +} IxParityENAccMcuParityErrorStats; + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccEbcParityErrorStats + * + * @brief Expansion Bus Controller parity error statistics + */ +typedef struct /* IxParityENAccEbcParityErrorStats */ +{ + UINT32 parityErrorsInbound; /**< Odd bit parity errors on inbound transfers */ + UINT32 parityErrorsOutbound; /**< Odd bit parity errors on outbound transfers */ +} IxParityENAccEbcParityErrorStats; + + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccParityErrorStats + * + * @brief Parity Error Statistics for the all the hardware blocks + */ +typedef struct /**< IxParityENAccParityErrorStats */ +{ + IxParityENAccNpeParityErrorStats npeStats; /**< NPE parity error statistics */ + IxParityENAccMcuParityErrorStats mcuStats; /**< MCU parity error statistics */ + IxParityENAccEbcParityErrorStats ebcStats; /**< EBC parity error statistics */ + UINT32 swcpStats; /**< SWCP parity error statistics */ + UINT32 aqmStats; /**< AQM parity error statistics */ +} IxParityENAccParityErrorStats; + + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccParityErrorSource + * + * @brief The source of the parity error notification + */ +typedef enum /**< IxParityENAccParityErrorSource */ +{ + IX_PARITYENACC_NPE_A_IMEM, /**< NPE A - Instruction memory */ + IX_PARITYENACC_NPE_A_DMEM, /**< NPE A - Data memory */ + IX_PARITYENACC_NPE_A_EXT, /**< NPE A - External Entity*/ + IX_PARITYENACC_NPE_B_IMEM, /**< NPE B - Instruction memory */ + IX_PARITYENACC_NPE_B_DMEM, /**< NPE B - Data memory */ + IX_PARITYENACC_NPE_B_EXT, /**< NPE B - External Entity*/ + IX_PARITYENACC_NPE_C_IMEM, /**< NPE C - Instruction memory */ + IX_PARITYENACC_NPE_C_DMEM, /**< NPE C - Data memory */ + IX_PARITYENACC_NPE_C_EXT, /**< NPE C - External Entity*/ + IX_PARITYENACC_SWCP, /**< SWCP */ + IX_PARITYENACC_AQM, /**< AQM */ + IX_PARITYENACC_MCU_SBIT, /**< DDR Memory Controller Unit - Single bit parity */ + IX_PARITYENACC_MCU_MBIT, /**< DDR Memory Controller Unit - Multi bit parity */ + IX_PARITYENACC_MCU_OVERFLOW, /**< DDR Memory Controller Unit - Parity errors in excess of two */ + IX_PARITYENACC_EBC_CS, /**< Expansion Bus Controller - Chip Select */ + IX_PARITYENACC_EBC_EXTMST /**< Expansion Bus Controller - External Master */ +} IxParityENAccParityErrorSource; + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccParityErrorAccess + * + * @brief The type of access resulting in parity error + */ +typedef enum /**< IxParityENAccParityErrorAccess */ +{ + IX_PARITYENACC_READ, /**< Read Access */ + IX_PARITYENACC_WRITE /**< Write Access */ +} IxParityENAccParityErrorAccess; + +/** + * @ingroup IxParityENAcc + * + * @typedef IxParityENAccParityErrorAddress + * + * @brief The memory location which has parity error + */ +typedef UINT32 IxParityENAccParityErrorAddress; + +/** + * @ingroup IxParityENAcc + * + * @typedef IxParityENAccParityErrorData + * + * @brief The data read from the memory location which has parity error + */ +typedef UINT32 IxParityENAccParityErrorData; + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccParityErrorRequester + * + * @brief The requester interface through which the SDRAM memory access + * resulted in the parity error. + */ +typedef enum /**< IxParityENAccParityErrorRequester */ +{ + IX_PARITYENACC_MPI, /**< Direct Memory Port Interface */ + IX_PARITYENACC_AHB_BUS /**< South or North AHB Bus */ +} IxParityENAccParityErrorRequester; + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccAHBErrorMaster + * + * @brief The Master on the AHB bus interface whose transaction might have + * resulted in the parity error notification to XScale. + */ +typedef enum /**< IxParityENAccAHBErrorMaster */ +{ + IX_PARITYENACC_AHBN_MST_NPE_A, /**< NPE - A */ + IX_PARITYENACC_AHBN_MST_NPE_B, /**< NPE - B */ + IX_PARITYENACC_AHBN_MST_NPE_C, /**< NPE - C */ + IX_PARITYENACC_AHBS_MST_XSCALE, /**< XScale Bus Interface Unit */ + IX_PARITYENACC_AHBS_MST_PBC, /**< PCI Bus Controller */ + IX_PARITYENACC_AHBS_MST_EBC, /**< Expansion Bus Controller */ + IX_PARITYENACC_AHBS_MST_AHB_BRIDGE, /**< AHB Bridge */ + IX_PARITYENACC_AHBS_MST_USBH /**< USB Host Controller */ +} IxParityENAccAHBErrorMaster; + +/** + * @ingroup IxParityENAcc + * + * @enum IxParityENAccAHBErrorSlave + * + * @brief The Slave on the AHB bus interface whose transaction might have + * resulted in the parity error notification to XScale. + */ +typedef enum /**< IxParityENAccAHBErrorSlave */ +{ + IX_PARITYENACC_AHBN_SLV_MCU, /**< Memory Control Unit */ + IX_PARITYENACC_AHBN_SLV_AHB_BRIDGE, /**< AHB Bridge */ + IX_PARITYENACC_AHBS_SLV_MCU, /**< XScale Bus Interface Unit */ + IX_PARITYENACC_AHBS_SLV_APB_BRIDGE, /**< APB Bridge */ + IX_PARITYENACC_AHBS_SLV_AQM, /**< AQM */ + IX_PARITYENACC_AHBS_SLV_RSA, /**< RSA (Crypto Bus) */ + IX_PARITYENACC_AHBS_SLV_PBC, /**< PCI Bus Controller */ + IX_PARITYENACC_AHBS_SLV_EBC, /**< Expansion Bus Controller */ + IX_PARITYENACC_AHBS_SLV_USBH /**< USB Host Controller */ +} IxParityENAccAHBErrorSlave; + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccAHBErrorTransaction + * + * @brief The Master and Slave on the AHB bus interface whose transaction might + * have resulted in the parity error notification to XScale. + * + * NOTE: This information may be used in the data abort exception handler + * to differentiate between the XScale and non-XScale access to the SDRAM + * memory. + */ +typedef struct /**< IxParityENAccAHBErrorTransaction */ +{ + IxParityENAccAHBErrorMaster ahbErrorMaster; /**< Master on AHB bus */ + IxParityENAccAHBErrorSlave ahbErrorSlave; /**< Slave on AHB bus */ +} IxParityENAccAHBErrorTransaction; + +/** + * @ingroup IxParityENAcc + * + * @struct IxParityENAccParityErrorContextMessage + * + * @brief Parity Error Context Message + */ +typedef struct /**< IxParityENAccParityErrorContextMessage */ +{ + IxParityENAccParityErrorSource pecParitySource; /**< Source info of parity error */ + IxParityENAccParityErrorAccess pecAccessType; /**< Read or Write Access + Read - NPE, SWCP, AQM, DDR MCU, + Exp Bus Ctrlr (Outbound) + Write - DDR MCU, + Exp Bus Ctrlr (Inbound + i.e., External Master) */ + IxParityENAccParityErrorAddress pecAddress; /**< Address faulty location + Valid only for AQM, DDR MCU, + Exp Bus Ctrlr */ + IxParityENAccParityErrorData pecData; /**< Data read from the faulty location + Valid only for AQM and DDR MCU + For DDR MCU it is the bit location + of the Single-bit parity */ + IxParityENAccParityErrorRequester pecRequester; /**< Requester of SDRAM memory access + Valid only for the DDR MCU */ + IxParityENAccAHBErrorTransaction ahbErrorTran; /**< Master and Slave information on the + last AHB Error Transaction */ +} IxParityENAccParityErrorContextMessage; + +/** + * @ingroup IxParityENAcc + * + * @typedef IxParityENAccCallback + * + * @brief This prototype shows the format of a callback function. + * + * The callback will be used to notify the parity error to the client application. + * The callback will be registered by @ref ixParityENAccCallbackRegister. + * + * It will be called from an ISR when a parity error is detected and thus + * needs to follow the interrupt callable function conventions. + * + */ +typedef void (*IxParityENAccCallback) (void); + + +/* + * Prototypes for interface functions. + */ + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccInit(void) + * + * @brief This function will initialise the IxParityENAcc component. + * + * This function will initialise the IxParityENAcc component. It should only be + * called once, prior to using the IxParityENAcc component. + * + *
  1. It initialises the internal data structures, registers the ISR that + * will be triggered when a parity error occurs in IXP4xx silicon.
+ * + * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS - Initialization is successful + * @li IX_PARITYENACC_ALREADY_INITIALISED - The access layer has already + * been initialized + * @li IX_PARITYENACC_OPERATION_FAILED - The request failed because the + * operation didn't succeed on the hardware. Refer to error trace/log + * for details. + */ + +PUBLIC IxParityENAccStatus ixParityENAccInit(void); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccCallbackRegister ( + IxParityENAccCallback parityErrNfyCallBack) + * + * @brief This function will register a new callback with IxParityENAcc component. + * It can also reregister a new callback replacing the old callback. + * + * @param parityErrNfyCallBack [in] - This parameter will specify the call-back + * function supplied by the client application. + * + * This interface registers the user application supplied call-back handler with + * the parity error handling access component after the init. + * + * The callback function will be called from an ISR that will be triggered by the + * parity error in the IXP400 silicon. + * + * The following actions will be performed by this function: + *
  1. Check for the prior initialisation of the module before registering or + * re-registering of the callback. + * Check for parity error detection disabled before re-registration of the callback. + *
+ * + * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS - The parameters check passed and the + * registration is successful. + * @li IX_PARITYENACC_INVALID_PARAMETERS - Request failed due to NULL + * parameter passed. + * @li IX_PARITYENACC_OPERATION_FAILED - The request failed because the + * parity error detection not yet disabled. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested prior to + * the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccCallbackRegister ( + IxParityENAccCallback parityErrNfyCallBack); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccParityDetectionConfigure ( + const IxParityENAccHWParityConfig *hwParityConfig) + * + * @brief This interface allows the client application to enable the parity + * error detection on the underlying hardware block. + * + * @param hwParityConfig [in] - Hardware blocks for which the parity error + * detection is to be enabled or disabled. + * + * The client application allocates and provides the reference to the buffer. + * + * It will also verify whether the specific hardware block is functional or not. + * + * NOTE: Failure in enabling or disabling of one or more components result in + * trace message but still returns IX_PARITYENACC_SUCCESS. Refer to the function + * @ref ixParityENAccParityDetectionQuery on how to verify the failures while + * enabling/disabling paritys error detection. + * + * It shall be invoked after the Init and CallbackRegister functions but before + * any other function of the IxParityENAcc layer. + * + * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS - The parameters check passed and the + * request to enable/disable is successful. + * @li IX_PARITYENACC_INVALID_PARAMETERS-The request failed due to + * NULL parameter supplied. + * @li IX_PARITYENACC_OPERATION_FAILED - The request failed because the + * operation didn't succeed on the hardware. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested prior to + * the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccParityDetectionConfigure ( + const IxParityENAccHWParityConfig *hwParityConfig); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccParityDetectionQuery ( + IxParityENAccHWParityConfig * const hwParityConfig) + * + * @brief This interface allows the client application to determine the + * status of the parity error detection on the specified hardware blocks + * + * @param hwParityConfig [out] - Hardware blocks whose parity error detection + * has been enabled or disabled. + * + * The client application allocates and provides the reference to the buffer. + * + * This interface can be used immediately after the interface @ref + * ixParityENAccParityDetectionConfigure to see on which of the hardware blocks + * the parity error detection has either been enabled or disabled based on the + * client application request. + * + * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS - The parameters check passed and the + * request to query on whether the hardware parity error detection + * is enabled or disabled is successful. + * @li IX_PARITYENACC_INVALID_PARAMETERS-The request failed due to + * NULL parameter or invalid values supplied. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested prior + * to the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccParityDetectionQuery( + IxParityENAccHWParityConfig * const hwParityConfig); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccParityErrorContextGet( + IxParityENAccParityErrorContextMessage * const pecMessage) + * + * @brief This interface allows the client application to determine the + * status of the parity error context on hardware block for which the + * current parity error interrupt triggered. + * + * @param pecMessage [out] - The parity error context information of the + * parity interrupt currently being process. + * + * The client application allocates and provides the reference to the buffer. + * + * Refer to the data structure @ref IxParityENAccParityErrorContextMessage + * for details. + * + * The routine will will fetch the parity error context in the following + * priority, if multiple parity errors observed. + * + * 
+ * 0 - MCU (Multi-bit and single-bit in that order)
+ * 1 - NPE-A
+ * 2 - NPE-B
+ * 3 - NPE-C
+ * 4 - SWCP
+ * 5 - QM
+ * 6 - EXP
+ *
+ * NOTE: The information provided in the @ref IxParityENAccAHBErrorTransaction
+ * may be of help for the client application to decide on the course of action 
+ * to take. This info is taken from the Performance Monitoring Unit register
+ * which records most recent error observed on the AHB bus. This information
+ * might have been overwritten by some other error by the time it is retrieved.
+ *
+ * + * @li Re-entrant : No + * @li ISR Callable : Yes + * + * @return @li IX_PARITYENACC_SUCCESS-The parameters check passed and the + * request to get the parity error context information is successful. + * @li IX_PARITYENACC_INVALID_PARAMETERS-The request failed due to + * NULL parameter is passed + * @li IX_PARITYENACC_OPERATION_FAILED - The request failed because + * the operation didn't succeed on the hardware. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested prior + * to the initialisation of the access layer. + * @li IX_PARITYENACC_NO_PARITY - No parity condition exits or has + * already been cleared + */ + +PUBLIC IxParityENAccStatus ixParityENAccParityErrorContextGet( + IxParityENAccParityErrorContextMessage * const pecMessage); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccParityErrorInterruptClear ( + const IxParityENAccParityErrorContextMessage *pecMessage) + * + * @brief This interface helps the client application to clear off the + * interrupt condition on the hardware block identified in the parity + * error context message. Please refer to the table below as the operation + * varies depending on the interrupt source. + * + * @param pecMessage [in] - The parity error context information of the + * hardware block whose parity error interrupt condition is to disabled. + * + * The client application allocates and provides the reference to the buffer. + * + * 
+ * ****************************************************************************
+ * Following actions will be taken during the interrupt clear for respective
+ * hardware blocks.
+ * 
+ *  Parity Source     Actions taken during Interrupt clear 
+ *  -------------     -------------------------------------------------------
+ *  NPE-A             Interrupt will be masked off at the interrupt controller 
+ *                    so that it will not trigger continuously.
+ *                      Client application has to take appropriate action and 
+ *                      re-configure the parity error detection subsequently. 
+ *                      The client application will not be notified of further 
+ *                      interrupts, until the re-configuration is done using
+ *                      @ref ixParityENAccParityDetectionConfigure.
+ *
+ *  NPE-B             Interrupt will be masked off at the interrupt controller 
+ *                    so that it will not trigger continuously.
+ *                      Client application has to take appropriate action and 
+ *                      re-configure the parity error detection subsequently. 
+ *                      The client application will not be notified of further
+ *                      interrupts, until the re-configuration is done using
+ *                      @ref ixParityENAccParityDetectionConfigure.
+ *
+ *  NPE-C             Interrupt will be masked off at the interrupt controller 
+ *                      Client application has to take appropriate action and 
+ *                      re-configure the parity error detection subsequently. 
+ *                      The client application will not be notified of further
+ *                      interrupts, until the re-configuration is done using
+ *                      @ref ixParityENAccParityDetectionConfigure.
+ *
+ *  SWCP              Interrupt will be masked off at the interrupt controller.
+ *                      Client application has to take appropriate action and 
+ *                      re-configure the parity error detection subsequently. 
+ *                      The client application will not be notified of further
+ *                      interrupts, until the re-configuration is done using
+ *                      @ref ixParityENAccParityDetectionConfigure.
+ *
+ *  AQM               Interrupt will be masked off at the interrupt controller.
+ *                         Client application has to take appropriate action and 
+ *                         re-configure the parity error detection subsequently. 
+ *                         The client application will not be notified of further
+ *                         interrupts, until the re-configuration is done using
+ *                         @ref ixParityENAccParityDetectionConfigure.
+ *
+ *  MCU               Parity interrupt condition is cleared at the SDRAM MCU for 
+ *                    the following:
+ *                    1. Single-bit
+ *                    2. Multi-bit
+ *                    3. Overflow condition i.e., more than two parity conditions 
+ *                       occurred
+ *                    Note that single-parity errors do not result in data abort
+ *                    and not all data aborts caused by multi-bit parity error.
+ *
+ *  EXP               Parity interrupt condition is cleared at the expansion bus 
+ *                    controller for the following:
+ *                    1. External master initiated Inbound write
+ *                    2. Internal master (IXP400) initiated Outbound read
+ * ****************************************************************************
+ *
+ * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS-The parameters check passed and the request + * to clear the parity error interrupt condition is successful. + * @li IX_PARITYENACC_INVALID_PARAMETERS-The request failed due to + * NULL parameters have been passed or contents have been + * supplied with invalid values. + * @li IX_PARITYENACC_OPERATION_FAILED - The request failed because + * the operation didn't succeed on the hardware. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested prior + * to the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccParityErrorInterruptClear ( + const IxParityENAccParityErrorContextMessage *pecMessage); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccStatsGet ( + IxParityENAccParityErrorStats * const ixParityErrorStats) + * + * @brief This interface allows the client application to retrieve parity + * error statistics for all the hardware blocks + * + * @param ixParityErrorStats - [out] The statistics for all the hardware blocks. + * + * The client application allocates and provides the reference to the buffer. + * + * @li Re-entrant : No + * @li ISR Callable : Yes + * + * @return @li IX_PARITYENACC_SUCCESS-The parameters check passed and the + * request to retrieve parity error statistics for the hardware + * block is successful. + * @li IX_PARITYENACC_INVALID_PARAMETERS-The request failed due to a + * NULL parameter passed. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested prior + * to the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccStatsGet ( + IxParityENAccParityErrorStats * const ixParityErrorStats); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccStatsShow (void) + * + * @brief This interface allows the client application to print all the + * parity error statistics. + * + * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS - The request to show the pairty + * error statistics is successful. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested + * prior to the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccStatsShow (void); + +/** + * @ingroup IxParityENAcc + * + * @fn IxParityENAccStatus ixParityENAccStatsReset (void) + * + * @brief This interface allows the client application to reset all the + * parity error statistics. + * + * @li Re-entrant : No + * @li ISR Callable : No + * + * @return @li IX_PARITYENACC_SUCCESS - The request to reset the parity + * error statistics is successful. + * @li IX_PARITYENACC_NOT_INITIALISED - The operation requested + * prior to the initialisation of the access layer. + */ + +PUBLIC IxParityENAccStatus ixParityENAccStatsReset (void); + +#endif /* IXPARITYENACC_H */ +#endif /* __ixp46X */ + +/** + * @} defgroup IxParityENAcc + */ + -- cgit v1.2.3