93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
/*
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* Copyright (C) 2012-2017 ARM Limited or its affiliates.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/**************************************************************
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* This file defines the driver FIPS functions that should be
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* implemented by the driver user. Current implementation is sample code only.
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***************************************************************/
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#include <linux/module.h>
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#include "ssi_fips_local.h"
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#include "ssi_driver.h"
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static bool tee_error;
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module_param(tee_error, bool, 0644);
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MODULE_PARM_DESC(tee_error, "Simulate TEE library failure flag: 0 - no error (default), 1 - TEE error occured ");
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static enum cc_fips_state_t fips_state = CC_FIPS_STATE_NOT_SUPPORTED;
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static enum cc_fips_error fips_error = CC_REE_FIPS_ERROR_OK;
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/*
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* This function returns the FIPS REE state.
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* The function should be implemented by the driver user, depends on where
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* the state value is stored.
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* The reference code uses global variable.
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*/
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int ssi_fips_ext_get_state(enum cc_fips_state_t *p_state)
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{
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int rc = 0;
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if (!p_state)
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return -EINVAL;
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*p_state = fips_state;
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return rc;
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}
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/*
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* This function returns the FIPS REE error.
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* The function should be implemented by the driver user, depends on where
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* the error value is stored.
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* The reference code uses global variable.
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*/
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int ssi_fips_ext_get_error(enum cc_fips_error *p_err)
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{
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int rc = 0;
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if (!p_err)
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return -EINVAL;
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*p_err = fips_error;
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return rc;
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}
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/*
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* This function sets the FIPS REE state.
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* The function should be implemented by the driver user, depends on where
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* the state value is stored.
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* The reference code uses global variable.
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*/
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int ssi_fips_ext_set_state(enum cc_fips_state_t state)
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{
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fips_state = state;
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return 0;
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}
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/*
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* This function sets the FIPS REE error.
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* The function should be implemented by the driver user, depends on where
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* the error value is stored.
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* The reference code uses global variable.
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*/
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int ssi_fips_ext_set_error(enum cc_fips_error err)
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{
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fips_error = err;
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return 0;
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}
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