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72c7884092
BSEC services should return SMC error codes as other IDs (defined in stm32mp1_smc.h) and not BSEC driver ones. So that non-secure caller is able to treat them correctly. In global SMC handler, unknown ID should also return a value from this definition list, and not the generic one, which seems not well adapted for our needs. Two unsigned values initializations are also changed from 0 to 0U. Change-Id: Ib6fd3866a748cefad1d13d48f7be38241621023e Signed-off-by: Yann Gautier <yann.gautier@st.com> Signed-off-by: Nicolas Le Bayon <nicolas.le.bayon@st.com>
59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
/*
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* Copyright (c) 2016-2021, STMicroelectronics - All Rights Reserved
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <platform_def.h>
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#include <common/debug.h>
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#include <drivers/st/bsec.h>
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#include <stm32mp1_smc.h>
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#include "bsec_svc.h"
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uint32_t bsec_main(uint32_t x1, uint32_t x2, uint32_t x3,
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uint32_t *ret_otp_value)
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{
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uint32_t result;
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uint32_t tmp_data = 0U;
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switch (x1) {
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case STM32_SMC_READ_SHADOW:
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result = bsec_read_otp(ret_otp_value, x2);
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break;
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case STM32_SMC_PROG_OTP:
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*ret_otp_value = 0U;
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result = bsec_program_otp(x3, x2);
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break;
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case STM32_SMC_WRITE_SHADOW:
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*ret_otp_value = 0U;
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result = bsec_write_otp(x3, x2);
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break;
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case STM32_SMC_READ_OTP:
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*ret_otp_value = 0U;
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result = bsec_read_otp(&tmp_data, x2);
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if (result != BSEC_OK) {
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break;
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}
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result = bsec_shadow_register(x2);
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if (result != BSEC_OK) {
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break;
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}
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result = bsec_read_otp(ret_otp_value, x2);
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if (result != BSEC_OK) {
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break;
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}
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result = bsec_write_otp(tmp_data, x2);
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break;
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default:
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return STM32_SMC_INVALID_PARAMS;
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}
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return (result == BSEC_OK) ? STM32_SMC_OK : STM32_SMC_FAILED;
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}
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