SSL exar_wdt.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0+
/*/*
 * exar_wdt.c - Driver for the watchdog present in some
 *      Exar/MaxLinear UART chips like the XR28V38x.
 *
 * (c) Copyright 2022 D. Müller <d.mueller@elsoft.ch>.
 *
 */

#define * exar_wdt.c - Driver *       Exar/MaxLinear UART chips like the  * (c) Copyright 2022 D. Müller *

#include <inuxioh>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/watchdog.h>

#define DRV_NAME "exar_wdt"

static/*
static const unsigned char sio_enter_keys[] = { 0x67, 0x77, 0x87, 0xA0 };
#define EXAR_EXIT_KEY 0xAA

#define EXAR_LDN 0x07
#define EXAR_DID 0x20
#define EXAR_VID 0x23
#define EXAR_WDT 0x26
#define EXAR_ACT 0x30
#define EXAR_RTBASE 0x60

#define EXAR_WDT_LDEV 0x08

#define EXAR_VEN_ID 0x13A8
#define EXAR_DEV_382 0x0382
#define EXAR_DEV_384 0x0384

/* WDT runtime registers */
#define WDT_CTRL 0x00
#define WDT_VAL  0x01

#define WDT_UNITS_10MS 0x0 /* the 10 millisec unit of the HW is not used */
#define WDT_UNITS_SEC 0x2
#define WDT_UNITS_MIN 0x4

/* default WDT control for WDTOUT signal activ / rearm by read */
#define EXAR_WDT_DEF_CONF 0

struct wdt_pdev_node {
 struct list_head list;
 struct platform_device *pdev;
 const char name[16];
};

struct wdt_priv {
 /* the lock for WDT io operations */
 spinlock_t io_lock;
 struct resource wdt_res;
 struct watchdog_device wdt_dev;
 unsigned short did;
 unsigned short config_port;
 unsigned char enter_key;
 unsigned char unit;
 unsignedchartimeout
};

define 60

static <linuxplatform_devicehjava.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
module_param(timeout int, 0);
MODULE_PARM_DESC(timeout,
   "Watchdog timeoutjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
  _MODULE_STRINGWATCHDOG_TIMEOUT "

static bool nowayout = WATCHDOG_NOWAYOUTstaticconstunsignedcharsio_enter_keys]={0x67, 0, 0, 0xA0 ;
module_paramnowayout,bool0);
PARM_DESC,
  define 0x23
 includelinux.>

 intexar_sio_enterconst unsigned short config_port
    constunsigned char key)
{
if(!request_muxed_regionconfig_port,, ))
   EBUSYstaticr *

 /* write the ENTER-KEY twice */
 outbkey, )java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
t;

define
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

#define
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   0x01
 (,# #define EXAR_WDT_DEF_CONF
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static unsigned #efineEXAR_WDT_DEF_CONF 0
   constunsignedchar )
{  platform_devicepdev
outb, )java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
 returnconstchar name1]java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
}

static spinlock_tio_lock;
        charregstruct resource dt_res
{
 utbreg config_port;
 u ;
}

static shortunsigned charjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
  const charreg
# #define WATCHDOG_TIMEOUT)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
unsigned   Watchdogseconds==50 =java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61

 // SPDX-License-Identifier: GPL-2.0+/
 lsb exar_sio_read* / java.lang.StringIndexOutOfBoundsException: Range [28, 2) out of bounds for length 2

 return   return 
}

static
{
exar_sio_write , )java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
}

static{{ !(,# linux.>
{
u  rt_base dt_res <.

t( java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
 outb    ]=   x77x87java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 31
outb(>
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

define 0x20#
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 /*
 * use two accesses with different values to make sure
 * that a combination of a previous single access and
 * the ones below with the same value are not falsely
 * interpreted as "arm watchdog"
 */
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 outb EXAR_DEV_382 const char, unsigned haral
}

java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
{
 
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 spin_lock(

S 
priv- +; (, +java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
()java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20

 struct*;
  java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 54
{ java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
  *      acombination      java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 spin_lock(&priv->io_lock);

 statictimeout

 spin_unlock , java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 _WATCHDOG_TIMEOUT.java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct wdt_priv cannotstopped (efault
  java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0

()

   char)
 inbstatic{

spin_unlock>io_lock

}spin_lock

exar_wdt_disarmstructw * =(dog
{
 struct * = (outb config_port;
  =java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23

}
 * if new timeout is bigger then 255 seconds, change the
 * unit to minutes and round the timeout up to the next whole minute
 */
   java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 18
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

bool;
/java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 /* save for later use in exar_wdt_start() */  *  unit  * unit to miand  timeout  the

static =t 6java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

 if exar_wdt_start(wdogDT_UNITS_SEC
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 return msb< lsb
}   =unit_minoptions  

    java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
{
constjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
. ejava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
i ="XR28V38x ,
}

static.ing=java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 23
 
.stop  exar_wdt_stop,
 . *use twoaccesses different to *thatacombinationof previous  *the below thesame  interpretedas; 
 . (0  +)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
;

int(struct *,
       )
{
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 nt;

retpriv-priv-;
 if;
  returnstatic in 

 exar_sio_select_wdt(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 exar_sio_exit(priv->config_port);

  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

static java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{ returnret
 struct
  wdt_priv = dev-spin_lock>taticinti exar_wdt_probe
struct
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

struct *
es
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

&>)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32

 wdt_dev-> =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
wdt_dev- exar_wdt_ops;
 dt_dev- =1
 wdt_dev-> =25if(!)

watchdog_init_timeout
  struct wdt_priv(, ;
 watchdog_stop_on_reboot;
 watchdog_stop_on_unregister(wdt_dev);
 watchdog_set_drvdata( wdt_dev- = &exar_wdt_ops

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
f ret
  return ;

 (dt_devtimeout running */
 /* Make sure that the watchdog is not running */atchdog_stop_on_reboot(wdt_dev;
(wdt_devister)

ret= devm_watchdog_register_devicedev t =DIV_ROUND_UP 60
 f()
 }(, "%XWDT java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 0

 dev_info(dev, "XR28V%X WDT initialized. timeout=%d sec
   priv->did, timeout, nowayout);

 return 0priv->imeout
}

static unsigned
     exar_wdt_start);
      return   unsignedshort
{
 int.ptions WDIOF_KEEPALIVEPING    return 
 unsigned  =(onfig_portjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   returnret

  dev_info(dev XR28VX  initialized timeout%java.lang.StringIndexOutOfBoundsException: Range [51, 22) out of bounds for length 22
java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 9
rn0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 vid  xar_sio_select_wdt(;
 did =(config_port EXAR_DID

.ing=,
 if .et_timeout  ,
     ;
 static 
 exar_sio_select_wdtconfig_port
  /* is device active? */   priv
  if unsigned shortbase= 0;

 }

 exar_sio_exitexar_sioconfig_portjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   (
 struct   dev
  ( = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
   ;
 }

 returnret
}

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 d=
  .name = return;
 }sp& *
struct_;

staticsio_readconfig_port) =01x01)

staticwdt_dev- (!
java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 1
 struct
 exar_sio_exitconfig_port)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
nr_debugFound %  conf%  :x0\,
 if (!n)
    did config_portbase(wdt_dev );

INIT_LIST_HEAD&-list

d =
  . = DRV_NAME

  eturn
    (dev"% WDT .timeout% java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ((  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 errtructjava.lang.StringIndexOutOfBoundsException: Range [21, 14) out of bounds for length 30

ujava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 8
   INIT_LIST_HEjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

(n-,pdev_list)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

 return  =
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

oid(void
{
 struct list_for_each_entry_safe(n ifvidr =PTR_ERR

 list_for_each_entry_safelist_add_tail& 
  java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 11
  (&  wdt_pdev_noden,*;
  freejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }
}

static   java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
int,i ,idx0

java.lang.StringIndexOutOfBoundsException: Range [65, 66) out of bounds for length 65
for( unsigned  did t_base 0java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
  for (j =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  

     struct
    DEFINE_RES_IO,2java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
   rt_base;

   if   . =  name DRV_NAME,
   ;
     .wdt_res  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      ;
   . =sio_config_portsi,
     .java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
  if(etjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

     java.lang.StringIndexOutOfBoundsException: Range [8, 6) out of bounds for length 11
    if (!ret java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
  }
 }

  
  ret        priv-wdt_res 1java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28

 retplatform_driver_probe,exar_wdt_probe
 if (ret)
  exar_wdt_unregister(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
}

static void
{
 exar_wdt_unregister
pjava.lang.StringIndexOutOfBoundsException: Range [27, 11) out of bounds for length 27


()java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27


java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(-pdev
(;