88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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* Copyright (C) 2008 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#include <drivers/pke.h>
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#include <platform/clocks.h>
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#include <platform/power.h>
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#include <platform/soc/hwclocks.h>
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#include <platform/soc/hwregbase.h>
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#include <string.h>
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#include <sys.h>
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#include "AppleS5L8900XPKE-hardware.h"
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#define Pke_Shim_DEBUG 0
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#if Pke_Shim_DEBUG
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static void debug_data(uint8_t *data, size_t length)
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{
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uint32_t i=0;
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printf("data %p,%d\n" , data, length);
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for (i = 0; i < length; i++) {
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if( !(i%256) )
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printf("Seg : %p \n", data);
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printf("%02X, ", *(data + i));
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if ((i % 16) == 15)
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printf("\n");
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}
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printf("\n");
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}
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#define debug(fmt, args...) printf("pke_new::%s: " fmt "\n", __FUNCTION__ , ##args)
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#else
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#define debug(fmt, args...)
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#define debug_data(data, length)
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#endif
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//PKE hardware memory map.
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static volatile struct pke_regs *registers = (struct pke_regs *)PKE_BASE_ADDR;
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static volatile uint8_t *memory = (uint8_t*)(PKE_BASE_ADDR + 0x800);
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extern bool rsa_cal_exp(void *dst, uint32_t *len, uint32_t options,
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uint8_t *rsquare, uint32_t *rsquare_length,
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uint8_t * const base, uint32_t base_length,
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uint8_t * const expn, uint32_t expn_length,
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uint8_t * const modulus, uint32_t modulus_length,
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volatile struct pke_regs *registers, volatile uint8_t *memory);
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bool pke_do_exp(uint8_t *dst, size_t *len, size_t key_length,
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uint8_t * const base, size_t base_length,
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uint8_t * const expn, size_t expn_length,
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uint8_t * const mods, size_t mods_length)
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{
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bool ret = false;
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uint32_t rsquare[64]; //word aligned 256byte buffer.
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uint32_t rlen = sizeof(rsquare);
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clock_gate(CLK_PKE, true);
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platform_power_set_gate(PWRBIT_USB, true);
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#if Pke_Shim_DEBUG
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utime_t st, et;
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st = system_time();
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#endif
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ret = rsa_cal_exp(dst, (uint32_t*)len, 0,
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(uint8_t*)rsquare, &rlen,
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base, (uint32_t)base_length,
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expn, (uint32_t)expn_length,
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mods, (uint32_t)mods_length,
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registers, memory);
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#if Pke_Shim_DEBUG
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et = system_time();
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debug("rsa_cal_exp took %llu micros for keylen: %lu", (et-st), key_length);
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//debug("The result:");
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//debug_data(dst, *len);
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#endif
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clock_gate(CLK_PKE, false);
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return ret;
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}
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