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/*
* Copyright (c) 2014-2021, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <stdbool.h>
#include <stdint.h>
#include <common/debug.h>
#include <common/runtime_svc.h>
#include <drivers/scmi-msg.h>
#include <lib/psci/psci.h>
#include <tools_share/uuid.h>
#include <stm32mp1_smc.h>
#include "bsec_svc.h"
/* STM32 SiP Service UUID */
DEFINE_SVC_UUID2(stm32_sip_svc_uid,
0xa778aa50, 0xf49b, 0x144a, 0x8a, 0x5e,
0x26, 0x4d, 0x59, 0x94, 0xc2, 0x14);
/* Setup STM32MP1 Standard Services */
static int32_t stm32mp1_svc_setup(void)
{
/*
* PSCI is the only specification implemented as a Standard Service.
* Invoke PSCI setup from here.
*/
return 0;
}
/*
* Top-level Standard Service SMC handler. This handler will in turn dispatch
* calls to PSCI SMC handler.
*/
static uintptr_t stm32mp1_svc_smc_handler(uint32_t smc_fid, u_register_t x1,
u_register_t x2, u_register_t x3,
u_register_t x4, void *cookie,
void *handle, u_register_t flags)
{
uint32_t ret1 = 0U, ret2 = 0U;
bool ret_uid = false, ret2_enabled = false;
switch (smc_fid) {
case STM32_SIP_SVC_CALL_COUNT:
ret1 = STM32_COMMON_SIP_NUM_CALLS;
break;
case STM32_SIP_SVC_UID:
/* Return UUID to the caller */
ret_uid = true;
break;
case STM32_SIP_SVC_VERSION:
/* Return the version of current implementation */
ret1 = STM32_SIP_SVC_VERSION_MAJOR;
ret2 = STM32_SIP_SVC_VERSION_MINOR;
ret2_enabled = true;
break;
case STM32_SMC_BSEC:
ret1 = bsec_main(x1, x2, x3, &ret2);
ret2_enabled = true;
break;
case STM32_SIP_SMC_SCMI_AGENT0:
scmi_smt_fastcall_smc_entry(0);
break;
case STM32_SIP_SMC_SCMI_AGENT1:
scmi_smt_fastcall_smc_entry(1);
break;
default:
WARN("Unimplemented STM32MP1 Service Call: 0x%x\n", smc_fid);
ret1 = STM32_SMC_NOT_SUPPORTED;
break;
}
if (ret_uid) {
SMC_UUID_RET(handle, stm32_sip_svc_uid);
}
if (ret2_enabled) {
SMC_RET2(handle, ret1, ret2);
}
SMC_RET1(handle, ret1);
}
/* Register Standard Service Calls as runtime service */
DECLARE_RT_SVC(stm32mp1_sip_svc,
OEN_SIP_START,
OEN_SIP_END,
SMC_TYPE_FAST,
stm32mp1_svc_setup,
stm32mp1_svc_smc_handler
);
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