/* IBM_PROLOG_BEGIN_TAG                                                   */
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/* $Source: src/import/chips/p9/procedures/hwp/pm/p9_setup_evid.H $       */
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/* OpenPOWER HostBoot Project                                             */
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/* Contributors Listed Below - COPYRIGHT 2016                             */
/* [+] International Business Machines Corp.                              */
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/* IBM_PROLOG_END_TAG                                                     */

///
/// @file  p9_setup_evid.H
/// @brief Setup External Voltage IDs
///
/// *HW Owner    : Sudheendra K Srivathsa <sudheendraks@in.ibm.com>
/// *FW Owner    : Sangeetha T S <sangeet2@in.ibm.com>
/// *Team        : PM
/// *Consumed by : HB
/// *Level       : 2
///

#ifndef __P9_SETUP_EVID_H__
#define __P9_SETUP_EVID_H__

#include <fapi2.H>

extern "C"
{

/// @typedef VoltageConfigActions_t
/// enum of the two actions this hwp can perform
/// it can either compute default voltage settings
/// otherwise it can apply voltage setting to the system
    typedef enum
    {
        COMPUTE_VOLTAGE_SETTINGS,
        APPLY_VOLTAGE_SETTINGS
    } VoltageConfigActions_t;

/// @typedef p9_setup_evid_FP_t
/// function pointer typedef definition for HWP call support
    typedef fapi2::ReturnCode (*p9_setup_evid_FP_t) (
        const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>&,
        const VoltageConfigActions_t);

/// @brief Read attributes containing part's boot voltages(VDD,VCS and VDN)
/// and set these voltage using the AVSBUS interface (VDD, VDN and VCS).
///
/// @param [in] i_target TARGET_TYPE_PROC_CHIP
/// @param [in] i_action Describes whether you wish to COMPUTE voltage settings
///                      during the step or if you would like to APPLY them.
/// @attr
/// @attritem  ATTR_VCS_BOOT_VOLTAGE  - 1mV grandularity setting for VCS rail
/// @attritem  ATTR_VDD_BOOT_VOLTAGE  - 1mV grandularity setting for VDD rail
/// @attritem  ATTR_VDN_BOOT_VOLTAGE  - 1mV grandularity setting for VDN rail
/// @attritem  ATTR_VDD_AVSBUS_BUSNUM - AVSBus Number having the VDD VRM
/// @attritem  ATTR_VDD_AVSBUS_RAIL   - AVSBus Rail number for VDD VRM
/// @attritem  ATTR_VDN_AVSBUS_BUSNUM - AVSBus Number having the VDN VRM
/// @attritem  ATTR_VDN_AVSBUS_RAIL   - AVSBus Rail number for VDN VRM
/// @attritem  ATTR_VCS_AVSBUS_BUSNUM - AVSBus Number having the VCS VRM
/// @attritem  ATTR_VCS_AVSBUS_RAIL   - AVSBus Rail number for VCS VRM
///
/// @retval FAPI_RC_SUCCESS
    fapi2::ReturnCode
    p9_setup_evid(const fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target,
                  const VoltageConfigActions_t i_action);


} // extern C

#endif  // __P9_SETUP_EVID_H__