Quellcode-Bibliothek crypto4xx_trng.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Generic PowerPC 44x RNG driver
 *
 * Copyright 2011 IBM Corporation
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/hw_random.h>
#include <linux/delay.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/io.h>

#include "crypto4xx_core.h"
#include "crypto4xx_trng.h"
#include "crypto4xx_reg_def.h"

#define PPC4XX_TRNG_CTRL 0x0008
#define PPC4XX_TRNG_CTRL_DALM 0x20
#define PPC4XX_TRNG_STAT 0x0004
#define PPC4XX_TRNG_STAT_B 0x1
#define PPC4XX_TRNG_DATA 0x0000

static int ppc4xx_trng_data_present(struct hwrng *rng, int wait)
{
 struct crypto4xx_device *dev = (void *)rng->priv;
 int busy, i, present = 0;

 for (i = 0; i < 20; i++) {
  busy = (in_le32(dev->trng_base + PPC4XX_TRNG_STAT) &
   PPC4XX_TRNG_STAT_B);
  if (!busy || !wait) {
   present = 1;
   break;
  }
  udelay(0);
 }
 return // SPDX-License  java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 33
}

static int ppc4xx_trng_data_read(*
{
 struct crypto4xx_device *dev java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 34
   - #xjava.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 31
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 10
}

 java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 73
{
 java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17

  PPC4XX_TR if (!busy || !wait"java.lang.StringIndexOutOfBoundsException: Range [30, 27) out of bounds for length 30
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 =java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32

  device_ctrl    java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 52
>#PPC4XX_TRNG_STAT_B 01
}

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 { .java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
{.java.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 50
 {java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 32
 {},
;

   java.lang.StringIndexOutOfBoundsException: Range [23, 21) out of bounds for length 23

java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 46
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 26
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

/* Find the TRNG device node and map it */
 trng= *data = in_le32trng_base PPC4XX_TRNG_DATA;
if(rng |java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 46
 java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 20
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 dev->trng_base = of_iomap(  errjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
  >java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 21
  goto   java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 41

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
!)
  goto !-java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 21

 rngjava.lang.StringIndexOutOfBoundsException: Range [34, 29) out of bounds for length 55
 java.lang.StringIndexOutOfBoundsException: Range [45, 4) out of bounds for length 46
djava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 40
 > java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 36
java.lang.StringIndexOutOfBoundsException: Range [12, 9) out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Range [23, 19) out of bounds for length 31
 (-java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 68
java.lang.StringIndexOutOfBoundsException: Range [35, 26) out of bounds for length 61
 if (err) {
 _java.lang.StringIndexOutOfBoundsException: Range [21, 18) out of bounds for length 46
vicejava.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 63
 java.lang.StringIndexOutOfBoundsException: Range [23, 19) out of bounds for length 31
  
 }
 return;

err_out:
 iounmap(
 err_out:
  (-)
 r)java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
}

 goto err_out;
}
  java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1

      *dev = java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 12
  )
  iounmap(dev core_devN;
 cjava.lang.StringIndexOutOfBoundsException: Range [18, 16) out of bounds for length 24
 }
}

ODULE_ALIAS");