130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch.h>
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#include <arch_helpers.h>
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#include <assert.h>
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#include <debug.h>
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#include <oem_svc.h>
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#include <platform.h>
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#include <runtime_svc.h>
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#include <stdint.h>
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#include <uuid.h>
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/* OEM Service UUID */
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DEFINE_SVC_UUID(oem_svc_uid,
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0xb943add0, 0x069d, 0x11e4, 0x91, 0x91,
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0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66);
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/* Setup OEM Services */
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static int32_t oem_svc_setup(void)
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{
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/*
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* Invoke related module setup from here
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*/
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return 0;
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}
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/*******************************************************************************
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* OEM top level handler for servicing SMCs.
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******************************************************************************/
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uint64_t oem_smc_handler(uint32_t smc_fid,
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uint64_t x1,
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uint64_t x2,
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uint64_t x3,
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uint64_t x4,
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void *cookie,
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void *handle,
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uint64_t flags)
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{
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uint64_t rc;
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switch (smc_fid) {
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default:
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rc = SMC_UNK;
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WARN("Unimplemented OEM Call: 0x%x\n", smc_fid);
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}
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SMC_RET1(handle, rc);
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}
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/*
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* Top-level OEM Service SMC handler. This handler will in turn dispatch
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* calls to related SMC handler
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*/
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uint64_t oem_svc_smc_handler(uint32_t smc_fid,
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uint64_t x1,
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uint64_t x2,
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uint64_t x3,
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uint64_t x4,
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void *cookie,
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void *handle,
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uint64_t flags)
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{
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/*
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* Dispatch OEM calls to OEM Common handler and return its return value
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*/
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if (is_oem_fid(smc_fid)) {
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return oem_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
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handle, flags);
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}
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switch (smc_fid) {
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case OEM_SVC_CALL_COUNT:
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/*
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* Return the number of OEM Service Calls.
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*/
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SMC_RET1(handle, OEM_SVC_NUM_CALLS);
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case OEM_SVC_UID:
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/* Return UID to the caller */
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SMC_UUID_RET(handle, oem_svc_uid);
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case OEM_SVC_VERSION:
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/* Return the version of current implementation */
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SMC_RET2(handle, OEM_VERSION_MAJOR, OEM_VERSION_MINOR);
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default:
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WARN("Unimplemented OEM Service Call: 0x%x\n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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}
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/* Register OEM Service Calls as runtime service */
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DECLARE_RT_SVC(
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oem_svc,
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OEN_OEM_START,
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OEN_OEM_END,
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SMC_TYPE_FAST,
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oem_svc_setup,
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oem_svc_smc_handler
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);
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