Quelle  vudc_transfer.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0+
/*
 *total limit;
 *java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  | setup>=){
 *
 * Based    *device: remote wakeup, selfpowered spin_unlock_irqrestore(&udc->lock, flags);
 } {
 *  buf = (char *)rb->ransfer_buffer;
 */

#include    ( = java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
# 
#include

#include "vudc -]already_seen 0java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29

d       java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
#define    
# buf] epjava.lang.StringIndexOutOfBoundsException: Range [20, 18) out of bounds for length 23
java.lang.StringIndexOutOfBoundsException: Range [38, 36) out of bounds for length 50
 java.lang.StringIndexOutOfBoundsException: Range [0, 18) out of bounds for length 0
#define ->transfer_buffer_length

retval ;
{
 switch (speed) {
 casestruct urb *rb  tatus=0
    *bytes* java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 case  case USB_SPEED_FULL
     return;
 case java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 1
 return 512java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
 case USB_SPEED_SUPER:
  /* Bus speed is 500000 bytes/ms, so use a little less */ static  transferstruct vudc,
  490000;
 default:
  /* error */
struct  eqjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 }

}

/*
 *  /* if there's no request
 *  host_len,dev_len,len;
 * @urb:the  request  handle
 * *
  request
*s:pointer  handling status
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 * * terminate reads
 *   1 - if  ->etup_stage  1;
*  error code 
 *
 *  is_short=1java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 */
iflen>
       if (ep == >0 & -java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 17
      intstatus
{  rescan=1java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
struct *2;
 int  ret_val = 1;
 unsigned int w_index;
 unsigned int  is_short = 1

w_index =(setupjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 38
 switch 
 case-    sjava.lang.StringIndexOutOfBoundsException: Range [34, 27) out of bounds for length 49
!= DEV_REQUEST
   break 
  udc->   java.lang.StringIndexOutOfBoundsException: Range [21, 19) out of bounds for length 36
  ret_val=0
   spin_unlock&-  -reqctual=len;
  break;
     udc>river-setup(&dcsent+lenjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
(>=  
   ret_val = 0;
 switchw_value java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
   case   * short packets}
  ;
   case  java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
   limit =64*1024;
    break   * it'  ;
   case USB_DEVICE_A_HNP_SUPPORT-status  EPIPE
    urb> =0;
   break;
   case USB_DEVICE_A_ALT_HNP_SUPPORT:
    udc->gadget.a_alt_hnp_support = 1;
    break;
  default
    ret_val = -EOPNOTSUPP;
   }
   }
  udc-  }
    *status =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   }
 switch (-  * endpoint: ha
   /* endpoint halt */case  =har*>ransfer_buffer
  ep2 =vudc_find_endpoint(  java.lang.StringIndexOutOfBoundsException: Range [27, 5) out of bounds for length 41
   (!  req  urb- ;
    ret_val  java.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 20
   break
   }
   ep2-> 
   ret_val       e  if( >java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
   *status /
  else
 java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
      * fornow,giveunlimited 
  if (setup-        if( >ev_len)
    /* manyrequests r_buffer_length>1

   case USB_DEVICE_REMOTE_WAKEUP:
     if (ep-req. =req  >)
    break;

   case   return v_enqueue_ret_submitudc,urb_p)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
  USB_DEVICE_U2_ENABLE:
   :
  {
  break;
  default:
  ret_val = -EOPNOTSUPP
    break;list_for_each_entry(, &-req_queue ) java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
   }
 ( =0 java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
    *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    *status = 0;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  } else if (setup->java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 13
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 63
   java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 42
 if(p2)java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 
    structvep epjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 }
   if   is_short =1
    ep2->halted = ;
   ret_val   if (lenif(( >+msecs_to_jiffies()){
   * =0;
  }
  break;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if (setup-> rbuf_pos = req->req  req-req.;
list_for_each_entry  to_vepto_vep()
      memcpy(java.lang.StringIndexOutOfBoundsException: Range [12, 0) out of bounds for length 0
   
   /* /*
   device   
    * interface: nothing
     continue;
 */
 java.lang.StringIndexOutOfBoundsException: Range [9, 6) out of bounds for length 38
/
e = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(dc)
   continue- =VUDC_TR_IDLE
     
      break;
     }
   []=*otimer->frame_start + msecs_to_jiffies;
    }java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
      DEV_INREQUEST {
     buf[0] =(u8 such   ifnew)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
   }else
     buf[0 =dev_len)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
   - 
  if (-transfer_buffer_length
  req>
    *  udctr_timerjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
    urb->java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
et_val =0;
   *status = 0;
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

 }
  }
}

/* Adapted from dummy_hcd.c ; caller must hold lock */
static /java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
  struct urb *urb, struct epjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 struct vrequest *java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
 int sent = 0;
top:
/* if there's no request queued, the device is NAKing; return */
(req epr,req_entry java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
  unsigned java.lang.StringIndexOutOfBoundsException: Range [36, 18) out of bounds for length 36
  void  if r >){
 int    >eq.java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 25
  int  rescan = (&dc-pdev>ev, >t*

  /* :
 spin_lock(&dc>  java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 19
   VUDC_TR_STOPPEDjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
   *
   * writer can send a  spin_unlock(udc->ock); -> t->frame_limit(ax64
*java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 62
  t->state =;
 */
  host_len case java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
  dev_len = req-structvudc*  imer_container_of,ttr_timer);
}tructtransfer_timer *timer = &udc->tr_timer;

  to_host = usb_pipein(urb->pipe struct urbp *urb_p,*tmp;
  if (void (structvudc*dc
   is_short = 1  t  *epjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 8
   /* send multiple of maxpacket first, then remainder */ 
   if - =java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24
    is_short = 0;
   (en&-lock ;
     java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 2
    len -= len % java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 5
   }  /* FIXME   *
   =;
 }

   ubuf_pos = urb->transfer_buffer + urb->actual_length;
   

   if (urb->pipe & total = timer->frame_limit;
    memcpy(ubuf_pos, rbuf_pos,
   
    udc>p  total=transfer(,urb,ep,)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42

   urb->actual_length += len;
   req-  ep = to_vep(ep if -tatus=-EINPROGRESS)
   sent += len  ep-already_seen ;
  } }

  /*
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  *it only  an  towrite too much.
  *
 filling  
*java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 10
  t-!java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 38
 */

 java.lang.StringIndexOutOfBoundsException: Range [5, 5) out of bounds for length 0
 if =&-java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 55
    ;
   if
  ep ep->already_seen(java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 26
    if (dev_len   ->=;
   > ;>  java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
  
     urb-turbjava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 24
   } else {/* All timer functions are run with udc->lock held */
 urb->status =0
    if (java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   req-req.  -OVERFLOW;
    else
     req->req.status(t> ,0)
   }

  /* many requests terminate without a short packet */
  /* also check if we need to send zlp */
 } java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
   if ( transfer_timert=u-tjava.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43
  -.zero & to_host)
     rescan = 1;
    else
     req->req.status = 0;
   }
   if (urb->transfer_buffer_length == urb->actual_length) {
& &
        !to_host)
     rescan = 1;
    else
    urb->tatus=0;
   }
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

  /* device side completion --> continuable */
 if req-req.tatus =-) java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40

   list_del_init(  }
    spin_unlock&udc->ock;
usb_gadget_giveback_request(&ep}
   spin_lock(&udc->java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0

   /* requests might have been unlinked... */
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 14
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3

/
  if (urb->status   ;
   break;

   }else java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
  if   - 0
   goto
 }
return  java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}

static void  urb->status
{
 struct  /* we may want to java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 0
 struct
    v_stop_timervudc)
 java.lang.StringIndexOutOfBoundsException: Range [14, 1) out of bounds for length 1
 struct java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 24
structvep;
int 
int,java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

 spin_lock_irqsave&dc-lock,flags)

 total =get_frame_limitudc>adget);
 if (total < 0) { /* unknown speed, or not set yet */
  timer->state  (&udc>java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 27
  (-,);
  return  udc java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 36
 }
/
 if (time_after(jiffies, timer->java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 28
  timer->java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 3
 it accurate?*
e_start ;
 } else 
  timer->rame_limit
 }

 /* We have to clear ep0 flags separately as it's not on the list */
 udc-ep0. =0;
 spin_unlock_irqrestore(&udc->lock, flags);
  ep = to_vep(_ep);
  ep->already_seen = 0;
 }

restart
 list_for_each_entry_safe
struct urb u;

  ep = struct*=u-java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43
  if(urb->unlinkedjava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
   goto return_urb;
  if (timer->state}
   continue;

  if (!ep) {
   
  void ( vudc *dc)
  }

  /* Used up bandwidth? */
  if structtransfer_timer*  u-tr_timer;
   continue;

 e->
   continue;
  -  1;
  if (ep == &udc-  VUDC_TR_RUNNING:
   ep->setup_stage = 1;
    return
 caseVUDC_TR_IDLE
  ifep>& !ep->setup_stage) > java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
  >=;
 gotoreturn_urb;
  }

  if}
   /* TODO - flush any stale requests */
   ep->setup_stage = 0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   ep

    dev_d(- timer";
      t>){
    (&urb->status));
   if (case:
    spin_unlock(& caseVUDC_TR_IDLE
 = >->(udc>,
     (struct usb_ctrlrequest *)
 );
   *wemay  to  timertounqueue /
   }
   if (ret >= 0) { java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 29
 v_stop_timers vudc *dc)
    limit = 64 * 1024;
    gototreat_control_like_bulk;
   } else {
    urb->status = -EPIPE;
    urb->actual_length = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return_urb
    t->state=VUDC_TR_STOPPED;
  }

  limit = total;
  switch (ep->type) {
  case}
   /* TODO: support */
   urb->status = -EXDEV;
   break;

  case USB_ENDPOINT_XFER_INT:
   /*
    * TODO: figure out bandwidth guarantees
    * for now, give unlimited bandwidth
 */
   limit += urb->transfer_buffer_length;
   fallthrough;
  default:
treat_control_like_bulk:
   total -= transfer(udc, urb, ep, limit);
  }
  if (urb->status == -EINPROGRESS)
   continue;

return_urb:
  if (ep)
   ep->already_seen = ep->setup_stage = 0;

  spin_lock(&udc->lock_tx);
  list_del(&urb_p->urb_entry);
  if (!urb->unlinked) {
   v_enqueue_ret_submit(udc, urb_p);
  } else {
   v_enqueue_ret_unlink(udc, urb_p->seqnum,
          urb->unlinked);
   free_urbp_and_urb(urb_p);
  }
  wake_up(&udc->tx_waitq);
  spin_unlock(&udc->lock_tx);

  goto restart;
 }

 /* TODO - also wait on empty usb_request queues? */
 if (list_empty(&udc->urb_queue))
  timer->state = VUDC_TR_IDLE;
 else
  mod_timer(&timer->timer,
     timer->frame_start + msecs_to_jiffies(1));

 spin_unlock_irqrestore(&udc->lock, flags);
}

/* All timer functions are run with udc->lock held */

void v_init_timer(struct vudc *udc)
{
 struct transfer_timer *t = &udc->tr_timer;

 timer_setup(&t->timer, v_timer, 0);
 t->state = VUDC_TR_STOPPED;
}

void v_start_timer(struct vudc *udc)
{
 struct transfer_timer *t = &udc->tr_timer;

 dev_dbg(&udc->pdev->dev, "timer start");
 switch (t->state) {
 case VUDC_TR_RUNNING:
  return;
 case VUDC_TR_IDLE:
  return v_kick_timer(udc, jiffies);
 case VUDC_TR_STOPPED:
  t->state = VUDC_TR_IDLE;
  t->frame_start = jiffies;
  t->frame_limit = get_frame_limit(udc->gadget.speed);
  return v_kick_timer(udc, jiffies);
 }
}

void v_kick_timer(struct vudc *udc, unsigned long time)
{
 struct transfer_timer *t = &udc->tr_timer;

 dev_dbg(&udc->pdev->dev, "timer kick");
 switch (t->state) {
 case VUDC_TR_RUNNING:
  return;
 case VUDC_TR_IDLE:
  t->state = VUDC_TR_RUNNING;
  fallthrough;
 case VUDC_TR_STOPPED:
  /* we may want to kick timer to unqueue urbs */
  mod_timer(&t->timer, time);
 }
}

void v_stop_timer(struct vudc *udc)
{
 struct transfer_timer *t = &udc->tr_timer;

 /* timer itself will take care of stopping */
 dev_dbg(&udc->pdev->dev, "timer stop");
 t->state = VUDC_TR_STOPPED;
}