blob: c396e2d99c8bd4329c0363cae995bd324b9ca817 [file] [log] [blame]
/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <arch.h>
#include <arch_helpers.h>
#include <assert.h>
#include <debug.h>
#include <oem_svc.h>
#include <platform.h>
#include <runtime_svc.h>
#include <stdint.h>
#include <uuid.h>
/* OEM Service UUID */
DEFINE_SVC_UUID(oem_svc_uid,
0xb943add0, 0x069d, 0x11e4, 0x91, 0x91,
0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66);
/* Setup OEM Services */
static int32_t oem_svc_setup(void)
{
/*
* Invoke related module setup from here
*/
return 0;
}
/*******************************************************************************
* OEM top level handler for servicing SMCs.
******************************************************************************/
uintptr_t oem_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)
{
WARN("Unimplemented OEM Call: 0x%x\n", smc_fid);
SMC_RET1(handle, SMC_UNK);
}
/*
* Top-level OEM Service SMC handler. This handler will in turn dispatch
* calls to related SMC handler
*/
uintptr_t oem_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)
{
/*
* Dispatch OEM calls to OEM Common handler and return its return value
*/
if (is_oem_fid(smc_fid)) {
return oem_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
handle, flags);
}
switch (smc_fid) {
case OEM_SVC_CALL_COUNT:
/*
* Return the number of OEM Service Calls.
*/
SMC_RET1(handle, OEM_SVC_NUM_CALLS);
case OEM_SVC_UID:
/* Return UID to the caller */
SMC_UUID_RET(handle, oem_svc_uid);
case OEM_SVC_VERSION:
/* Return the version of current implementation */
SMC_RET2(handle, OEM_VERSION_MAJOR, OEM_VERSION_MINOR);
default:
WARN("Unimplemented OEM Service Call: 0x%x\n", smc_fid);
SMC_RET1(handle, SMC_UNK);
}
}
/* Register OEM Service Calls as runtime service */
DECLARE_RT_SVC(
oem_svc,
OEN_OEM_START,
OEN_OEM_END,
SMC_TYPE_FAST,
oem_svc_setup,
oem_svc_smc_handler
);