126 lines
3.6 KiB
C
126 lines
3.6 KiB
C
/*
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* Copyright (c) 2015, 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 <assert.h>
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#include <debug.h>
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#include <mtk_sip_svc.h>
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#include <runtime_svc.h>
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#include <uuid.h>
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/* Mediatek SiP Service UUID */
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DEFINE_SVC_UUID(mtk_sip_svc_uid,
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0xf7582ba4, 0x4262, 0x4d7d, 0x80, 0xe5,
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0x8f, 0x95, 0x05, 0x00, 0x0f, 0x3d);
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/*
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* This function handles Mediatek defined SiP Calls */
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static uint64_t mediatek_sip_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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{
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uint64_t ret;
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switch (smc_fid) {
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case MTK_SIP_SET_AUTHORIZED_SECURE_REG:
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ret = mt_sip_set_authorized_sreg((uint32_t)x1, (uint32_t)x2);
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SMC_RET1(handle, ret);
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case MTK_SIP_PWR_ON_MTCMOS:
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ret = mt_sip_pwr_on_mtcmos((uint32_t)x1);
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SMC_RET1(handle, ret);
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case MTK_SIP_PWR_OFF_MTCMOS:
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ret = mt_sip_pwr_off_mtcmos((uint32_t)x1);
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SMC_RET1(handle, ret);
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case MTK_SIP_PWR_MTCMOS_SUPPORT:
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ret = mt_sip_pwr_mtcmos_support();
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SMC_RET1(handle, ret);
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default:
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ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
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break;
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}
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SMC_RET1(handle, SMC_UNK);
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}
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/*
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* This function is responsible for handling all SiP calls from the NS world
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*/
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uint64_t sip_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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uint32_t ns;
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/* Determine which security state this SMC originated from */
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ns = is_caller_non_secure(flags);
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if (!ns)
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SMC_RET1(handle, SMC_UNK);
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switch (smc_fid) {
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case SIP_SVC_CALL_COUNT:
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/* Return the number of Mediatek SiP Service Calls. */
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SMC_RET1(handle, MTK_SIP_NUM_CALLS);
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case SIP_SVC_UID:
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/* Return UID to the caller */
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SMC_UUID_RET(handle, mtk_sip_svc_uid);
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case SIP_SVC_VERSION:
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/* Return the version of current implementation */
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SMC_RET2(handle, MTK_SIP_SVC_VERSION_MAJOR,
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MTK_SIP_SVC_VERSION_MINOR);
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default:
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return mediatek_sip_handler(smc_fid, x1, x2, x3, x4,
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cookie, handle);
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}
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}
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/* Define a runtime service descriptor for fast SMC calls */
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DECLARE_RT_SVC(
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mediatek_sip_svc,
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OEN_SIP_START,
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OEN_SIP_END,
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SMC_TYPE_FAST,
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NULL,
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sip_smc_handler
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);
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