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/*
* Copyright (c) 2016-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <common/debug.h>
#include <lib/pmf/pmf.h>
#include <plat/common/platform.h>
#include <smccc_helpers.h>
/*
* This function is responsible for handling all PMF SMC calls.
*/
uintptr_t pmf_smc_handler(unsigned int 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)
{
int rc;
unsigned long long ts_value;
if (((smc_fid >> FUNCID_CC_SHIFT) & FUNCID_CC_MASK) == SMC_32) {
x1 = (uint32_t)x1;
x2 = (uint32_t)x2;
x3 = (uint32_t)x3;
if (smc_fid == PMF_SMC_GET_TIMESTAMP_32) {
/*
* Return error code and the captured
* time-stamp to the caller.
* x0 --> error code.
* x1 - x2 --> time-stamp value.
*/
rc = pmf_get_timestamp_smc((unsigned int)x1, x2,
(unsigned int)x3, &ts_value);
SMC_RET3(handle, rc, (uint32_t)ts_value,
(uint32_t)(ts_value >> 32));
}
} else {
if (smc_fid == PMF_SMC_GET_TIMESTAMP_64) {
/*
* Return error code and the captured
* time-stamp to the caller.
* x0 --> error code.
* x1 --> time-stamp value.
*/
rc = pmf_get_timestamp_smc((unsigned int)x1, x2,
(unsigned int)x3, &ts_value);
SMC_RET2(handle, rc, ts_value);
}
}
WARN("Unimplemented PMF Call: 0x%x \n", smc_fid);
SMC_RET1(handle, SMC_UNK);
}
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