mtk-lk/app/mt_boot/mt_secure_call.c

/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
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*/
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*/
#include <sys/types.h>
#include "mtk_secure_api.h"
#define LOCAL_REG_SET_DECLARE \
	register size_t reg0 __asm__("r0") = function_id; \
	register size_t reg1 __asm__("r1") = arg0; \
	register size_t reg2 __asm__("r2") = arg1; \
	register size_t reg3 __asm__("r3") = arg2; \
	register size_t reg4 __asm__("r4") = arg3; \
	size_t ret

size_t mt_secure_call_all(size_t function_id,
	size_t arg0, size_t arg1, size_t arg2,
	size_t arg3, size_t *r1, size_t *r2, size_t *r3)
{
	LOCAL_REG_SET_DECLARE;

	__asm__ volatile ("smc #0x0\n" : "+r"(reg0),
		"+r"(reg1), "+r"(reg2), "+r"(reg3), "+r"(reg4));
	ret = reg0;
	if (r1 != NULL)
		*r1 = reg1;
	if (r2 != NULL)
		*r2 = reg2;
	if (r3 != NULL)
		*r3 = reg3;
	return ret;
}

void jumparch64_smc(size_t addr, size_t arg1, size_t arg2, size_t arg3)
{
	mt_secure_call(MTK_SIP_KERNEL_BOOT, addr, arg1, arg2, arg3);
}

unsigned int get_rnd(unsigned int *rnd)
{
	return mt_secure_call_all(MTK_SIP_LK_GET_RND, 0, 0, 0, 0, (size_t *) rnd, 0, 0);
}

unsigned int md_reg_write_smc(size_t arg0, size_t arg1, size_t arg2, size_t arg3)
{
	return mt_secure_call(MTK_SIP_LK_MD_REG_WRITE, arg0, arg1, arg2, arg3);
}

unsigned int crypto_hw_init(unsigned int share_mem_addr, unsigned int share_mem_len)
{
	return mt_secure_call(MTK_SIP_LK_CRYPTO_HW_ENGINE_INIT, share_mem_addr, share_mem_len, 0, 0);
}

unsigned int crypto_hw_disable(void)
{
	return mt_secure_call(MTK_SIP_LK_CRYPTO_HW_ENGINE_DISABLE, 0, 0, 0, 0);
}

unsigned int sha256atf_init(void)
{
	return mt_secure_call(MTK_SIP_LK_CRYPTO_SHA256_INIT, 0, 0, 0, 0);
}

unsigned int sha256atf_process(const unsigned char *in, unsigned long len)
{
	return mt_secure_call(MTK_SIP_LK_CRYPTO_SHA256_PROCESS, (size_t)in, len, 0, 0);
}

unsigned int sha256atf_done(void)
{
	return mt_secure_call(MTK_SIP_LK_CRYPTO_SHA256_DONE, 0, 0, 0, 0);
}

int32_t rpmb_init(void)
{
	return mt_secure_call(MTK_SIP_LK_RPMB_INIT, 0, 0, 0, 0);
}

int32_t rpmb_uninit(void)
{
	return mt_secure_call(MTK_SIP_LK_RPMB_UNINIT, 0, 0, 0, 0);
}

int32_t rpmb_hmac(uint32_t pattern, uint32_t size)
{
	return mt_secure_call(MTK_SIP_LK_RPMB_HMAC, pattern, size, 0, 0);
}