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/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/include/usr/hwpf/fapi/fapiHwAccess.H $                    */
/*                                                                        */
/* IBM CONFIDENTIAL                                                       */
/*                                                                        */
/* COPYRIGHT International Business Machines Corp. 2011,2012              */
/*                                                                        */
/* p1                                                                     */
/*                                                                        */
/* Object Code Only (OCO) source materials                                */
/* Licensed Internal Code Source Materials                                */
/* IBM HostBoot Licensed Internal Code                                    */
/*                                                                        */
/* The source code for this program is not published or otherwise         */
/* divested of its trade secrets, irrespective of what has been           */
/* deposited with the U.S. Copyright Office.                              */
/*                                                                        */
/* Origin: 30                                                             */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
/**
 *  @file fapiHwAccess.H
 *
 *  @brief Defines the hardware access functions that platform code must
 *         implement. It is a HWP requirement that these be "C" functions
 *         because it simplifies language bindings for non-C languages,
 *         such as perl
 */

/*
 * Change Log ******************************************************************
 * Flag     Defect/Feature  User        Date        Description
 * ------   --------------  ----------  ----------- ----------------------------
 *                          mjjones     04/13/2011  Created. Copied from Hlava's code.
 *                          mjjones     06/02/2011  Scom addresses should be uint64_t
 *                                                  use ecmdDataBufferBase
 *                          mjjones     06/30/2011  Updated comment
 *                          mjjones     09/14/2011  Prepended fapi to functions
 *                          mjjones     11/10/2011  Use ecmdDataBufferBase
 *          836579          thi         May 22,2012 Spy/Ring supports
 *                          mjjones     07/12/2012  Add mode options to Ring funcs
 *                          rjknight    09/20/2012  Update fapiSpy interfaces to
 *                                                  allow string inputs for cronus
 */

#ifndef FAPIHWACCESS_H_
#define FAPIHWACCESS_H_

#include <stdint.h>
#include <ecmdDataBufferBase.H>
#include <fapiReturnCode.H>
#include <fapiTarget.H>

namespace fapi
{
    /**
     * @brief Enumeration of modify modes used in modify operations
     */
    enum ChipOpModifyMode
    {
        CHIP_OP_MODIFY_MODE_OR = 1,
        CHIP_OP_MODIFY_MODE_AND = 2,
        CHIP_OP_MODIFY_MODE_XOR = 3,
    };

    /**
     * @brief Enumeration of Ring operation modes
     *
     * This is a bitmap to allow the user to specify multiple modes
     */
    enum RingMode
    {
        RING_MODE_SET_PULSE       = 0x00000001,
        RING_MODE_NO_HEADER_CHECK = 0x00000002,
        // FUTURE_MODE            = 0x00000004,
        // FUTURE_MODE            = 0x00000008,
    };
}

extern "C"
{

//------------------------------------------------------------------------------
// HW Communication Functions
//------------------------------------------------------------------------------

/**
 * @brief Reads a SCOM register from a Chip
 * @param[in] i_target Target to operate on
 * @param[in] i_address Scom address to read from
 * @param[out] o_data ecmdDataBufferBase object that holds data read from
 *                    address
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiGetScom(const fapi::Target& i_target,
                             const uint64_t i_address,
                             ecmdDataBufferBase & o_data);

/**
 * @brief Writes a SCOM register on a Chip
 * @param[in] i_target Target to operate on
 * @param[in] i_address Scom address to write to
 * @param[in] i_data ecmdDataBufferBase object that holds data to write into
 *                   address
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiPutScom(const fapi::Target& i_target,
                             const uint64_t i_address,
                             ecmdDataBufferBase & i_data);

/**
 * @brief Writes a SCOM register under mask to a chip
 * @param[in] i_target Target to operate on
 * @param[in] i_address Scom address to write to
 * @param[in] i_data ecmdDataBufferBase object that holds the data
 * @param[in] i_mask ecmdDataBufferBase object that holds the mask (i_data to
 *                   write)
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiPutScomUnderMask(const fapi::Target& i_target,
                                      const uint64_t i_address,
                                      ecmdDataBufferBase & i_data,
                                      ecmdDataBufferBase & i_mask);


/**
 * @brief Reads a CFAM register from a chip
 * @param[in] i_target Target to operate on
 * @param[in] i_address CFAM address to read from
 * @param[out] o_data ecmdDataBufferBase object that holds data read from
 *                    address
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiGetCfamRegister(const fapi::Target& i_target,
                                     const uint32_t i_address,
                                     ecmdDataBufferBase & o_data);

/**
 * @brief Writes a CFAM register to a chip
 * @param[in] i_target Target to operate on
 * @param[in] i_address CFAM address to write to
 * @param[in] i_data ecmdDataBufferBase object that holds data to write into
 *                   address
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiPutCfamRegister(const fapi::Target& i_target,
                                     const uint32_t i_address,
                                     ecmdDataBufferBase & i_data);

/**
 * @brief Read-modify-write a CFAM register on a chip
 * @param[in] i_target Target to operate on
 * @param[in] i_address CFAM address to write to
 * @param[in] i_data ecmdDataBufferBase object that holds the modifying data
 * @param[in] i_modifyMode The modify mode (or/and/xor)
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiModifyCfamRegister(const fapi::Target& i_target,
                                        const uint32_t i_address,
                                        ecmdDataBufferBase & i_data,
                                        const fapi::ChipOpModifyMode i_modifyMode);

/**
 * @brief Reads a ring from a target
 * @param[in] i_target Target to operate on
 * @param[in] i_address Ring address to read from
 * @param[out] o_data ecmdDataBufferBase object that holds data read from
 *                    address
 * @param[in] i_ringMode Any number of mode options from fapi::RingMode ORed
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiGetRing(const fapi::Target& i_target,
                             const uint32_t i_address,
                             ecmdDataBufferBase & o_data,
                             const uint32_t i_ringMode = 0);

/**
 * @brief Writes a ring register on a target
 * @param[in] i_target  Target to operate on
 * @param[in] i_address Ring address to write to
 * @param[in] i_data    ecmdDataBufferBase object that holds data to write into
 *                      address
 * @param[in] i_ringMode Any number of mode options from fapi::RingMode ORed
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiPutRing(const fapi::Target& i_target,
                             const uint32_t i_address,
                             ecmdDataBufferBase & i_data,
                             const uint32_t i_ringMode = 0);


/**
 * @brief Modifies a ring register on a target
 * @param[in] i_target  Target to operate on
 * @param[in] i_address Ring address to modify
 * @param[in] i_data    ecmdDataBufferBase object that holds data to write into
 *                      address
 * @param[in] i_ringMode Any number of mode options from fapi::RingMode ORed
 * @return ReturnCode. Zero on success, else platform specified error
 */
fapi::ReturnCode fapiModifyRing(const fapi::Target& i_target,
                                const uint32_t i_address,
                                ecmdDataBufferBase & i_data,
                                const fapi::ChipOpModifyMode i_modifyMode,
                                const uint32_t i_ringMode = 0);

// --------------------------------------------------------------------------
// NOTE:
// These spy access interfaces are only used in FSP and cronus
// HB does not allow spy access

/**
 * @brief Reads a Spy from a target
 * @param[in] i_target              Target to read spy from
 * @param[in] i_spyId               The spy's id
 * @param[out] o_data               Storage for output data
 *
 * @return ReturnCode. Zero on success, else platform specified error
 *
 * @note:  The string version is only supported for cronus.
 *
 *         The fapi design to support both FSP and cronus use of get and
 *         put spy funcions is dependant on the SPY names being expanded
 *         to resemble a valid C identifier. This design places some
 *         restrictions on the SPY names which can be used.
 *
 *         1. if the spy name contains a # procedure writers should replade it
 *         with an __P__ for example -
 *
 *         ABUS.RX0.RXPACKS#0.RXPACK.RD.LC.LC.ACT_DIS
 *         becomes
 *         ABUS.RX0.RXPACKS__P__0.RXPACK.RD.LC.LC.ACT_DIS
 *
 *         2. if the spy name has a number following a "." it must have an
 *         uinderscore prepended to the number.
 *
 *         EH.TPCHIP.2KX100_ARY_CLK_EDGES_DLY
 *         becomes
 *         EH.TPCHIP._2KX100_ARY_CLK_EDGES_DLY
 *
 *         Example SPY name:
 *         The hardware procedure should call the function like:
 *
 *          ABUS.RX0.RXPACKS#0.RXPACK.RD.LC.LC.ACT_DIS
 *
 *          fapi::ReturnCode rc = fapiGetSpy( targ,
 *                  ABUS.RX0.RXPACKS__P__0.RXPACK.RD.LC.LC.ACT_DIS, data );
 *
 *         NOTE: the ID is not in quotes the fapi code will handle adding the
 *         quotes for the cronus environment
 *
*/
#ifdef FAPI_SUPPORT_SPY_AS_ENUM

#define fapiGetSpy(TARGET, ID, DATA) _fapiGetSpy(TARGET, FAPI_SPY_NAMES::ID.value, DATA )
fapi::ReturnCode _fapiGetSpy(const fapi::Target& i_target,
                            const uint32_t i_spyId,
                            ecmdDataBufferBase & o_data);
#endif

#ifdef FAPI_SUPPORT_SPY_AS_STRING

#define fapiGetSpy(TARGET, ID, DATA) _fapiGetSpy(TARGET, #ID, DATA)
fapi::ReturnCode _fapiGetSpy(const fapi::Target& i_target,
                             const char * const i_spyId,
                             ecmdDataBufferBase & o_data);
#endif

#ifdef FAPI_SUPPORT_SPY_AS_ENUM
/**
 * @brief Writes a spy on a target
 * @param[in] i_target  Target to operate on
 * @param[in] i_spyId   The spy's id
 * @param[in] i_data    ecmdDataBufferBase object that holds data to write into
 *                      address
 *
 * @return ReturnCode. Zero on success, else platform specified error
 *
 * @note:  The string version is only supported for cronus.
 *
 *         The fapi design to support both FSP and cronus use of get and
 *         put spy funcions is dependant on the SPY names being expanded
 *         to resemble a valid C identifier. This design places some
 *         restrictions on the SPY names which can be used.
 *
 *         1. if the spy name contains a # procedure writers should replade it
 *         with an __P__ for example -
 *
 *         ABUS.RX0.RXPACKS#0.RXPACK.RD.LC.LC.ACT_DIS
 *         becomes
 *         ABUS.RX0.RXPACKS__P__0.RXPACK.RD.LC.LC.ACT_DIS
 *
 *         2. if the spy name has a number following a "." it must have an
 *         uinderscore prepended to the number.
 *
 *         EH.TPCHIP.2KX100_ARY_CLK_EDGES_DLY
 *         becomes
 *         EH.TPCHIP._2KX100_ARY_CLK_EDGES_DLY
 *
 *         Example SPY name:
 *         The hardware procedure should call the function like:
 *
 *          ABUS.RX0.RXPACKS#0.RXPACK.RD.LC.LC.ACT_DIS
 *
 *          fapi::ReturnCode rc = fapiPutSpy( targ,
 *                  ABUS.RX0.RXPACKS__P__0.RXPACK.RD.LC.LC.ACT_DIS, data );
 *
 *         NOTE: the ID is not in quotes the fapi code will handle adding the
 *         quotes for the cronus environment
 *
*/
#define fapiPutSpy(TARGET, ID, DATA) _fapiPutSpy(TARGET, FAPI_SPY_NAMES::ID.value, DATA)
fapi::ReturnCode _fapiPutSpy(const fapi::Target& i_target,
                            const uint32_t i_spyId,
                            ecmdDataBufferBase & i_data);
#endif

#ifdef FAPI_SUPPORT_SPY_AS_STRING
#define fapiPutSpy(TARGET, ID, DATA) _fapiPutSpy(TARGET, #ID, DATA)
fapi::ReturnCode _fapiPutSpy(const fapi::Target& i_target,
                            const char* const i_spyId,
                            ecmdDataBufferBase & i_data);
#endif

} // extern "C"

#endif // FAPIHWACCESS_H_
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