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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/usr/sio/sio.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef __SIO_SIO_H
#define __SIO_SIO_H
#include <errl/errlentry.H>
namespace SIO
{
/**
* SIO constants
*/
enum{
SIO_DEVICE_SELECT_REG = 0x07, /**< Regsiter to select SIO device */
SIO_ADDR_REG_2E = 0x2E, /**< SuperIO address register */
SIO_DATA_REG_2F = 0x2F, /**< SuperIO data register */
SIO_PASSWORD_REG = 0xA5, /**< SuperIO password register (to be unlocked to access SIO) */
SUART1 = 0x02, /**< SIO device */
iLPC2AHB = 0x0D, /**< SIO device */
KBC = 0x05, /**< SIO device: Keyboard Controller */
MB = 0x0E, /**< SIO device: Mailbox */
DONT_CARE = 0x02, /**< SIO device: Don't care for boot flags version */
ENABLE_DEVICE = 0x01, /**< Enable SIO device by writing 1 to reg 30 of device */
DISABLE_DEVICE = 0x00, /**< Disable SIO device by writing 0 to reg 30 of device */
SIO_iLPC2AHB_LENGTH = 0x02, /**< SIO to iLPC2AHB length */
SIO_ILPC2AHB_TRIGGER = 0xCF, /**< Read/Write 0xCF to reg FE of iLPC2AHB to trigger read/write for SIO/iLPC2AHB */
SIO_SCRATCH_REG1 = 0x21, /**< Scratch Reg */
SIO_SCRATCH_REG2 = 0x22, /**< Scratch Reg */
};
/**
* @brief Test if SuperIO is accessible on the LPC bus
*
* @param[out] o_available Set true if the SuperIO controller is available,
* false if it explicitly detected as unavailable,
* and unchanged if an unexpected error occurs.
*
* @return NULL if the test did not fail unexpectedly, otherwise a pointer
* to an errorlog associated with the error.
*/
errlHndl_t isAvailable(bool& o_available);
}
#endif
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