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/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#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.
******************************************************************************/
uint64_t oem_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_t flags)
{
uint64_t rc;
switch (smc_fid) {
default:
rc = SMC_UNK;
WARN("Unimplemented OEM Call: 0x%x\n", smc_fid);
}
SMC_RET1(handle, rc);
}
/*
* Top-level OEM Service SMC handler. This handler will in turn dispatch
* calls to related SMC handler
*/
uint64_t oem_svc_smc_handler(uint32_t smc_fid,
uint64_t x1,
uint64_t x2,
uint64_t x3,
uint64_t x4,
void *cookie,
void *handle,
uint64_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
);