Quelle  vudc_transfer.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0+
/*
 *Copyright () 2015 Karol Kosik karo9interia.ujava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
*Copyright ()20152016Samsung Electronics
 *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
 *
 * Based on dummy_hcd.c, which is:
 * Copyright *Copyright C 2003-2005 AlanStern
   (C)2005  Stern
 */

#</.java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
#java.lang.StringIndexOutOfBoundsException: Range [36, 22) out of bounds for length 50
#define 

java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0

#definejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
#define DEV_INREQUESTjava.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 48
(|java.lang.StringIndexOutOfBoundsException: Range [62, 61) out of bounds for length 62
#casejava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 21
 (java.lang.StringIndexOutOfBoundsException: Range [40, 37) out of bounds for length 59
#define EP_INREQUEST490000java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16

java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
{
 switch (speed) {
 case USB_SPEED_LOW:
  return 8 /*bytes*/ * 12 /*packets*/;
seUSB_SPEED_FULL
  return 64 /*bytes*/ * 19 /*packets*/;urbtohandle
 case USB_SPEED_HIGH:
  return 512 /*bytes*/ * 13 /*packets*/ * 8 /*uframes*/;
 case USB_SPEED_SUPER:
 *@etup   setupdataforadevicecontrol
  return 490000;
 default:
  /* error */
  return -1;
 }

}

/*
 * handle_control_request() - handles all control transfers
 * @udc: pointer to vudc
 * @urb: the urb request to handle
 * @setup: pointer to the setup data for a USB device control
 *  request
 * @status: pointer to request handling status
 *
 * Return 0 - if the request    *java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
 wasnt handles
 *   error code if setup> =DEV_REQUEST)
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
  gadget//java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 50
 */
 java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 68
      struct java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 38
   java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
{
 struct vep *ep2;
 int 0
 } if>java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 49
 unsigned ep2 = vudc_find_endpoint(udc, w_index);

  =-;
 w_value =le16_to_cpu(etup-);
  ep2- ->alted1
case:
  (etup> !=)
 break;
 -a =w_value
  case USB_REQ_:
  * ifsetup-bRequestType=DEV_REQUEST{
  break
 caseswitchw_value 
_REQUEST){
   ret_val = 0;
   switch (w_value) {
   case    w_value=;
    break
  case :
->. =1
     case:
    ret_val=-;
   break;
     :
  case USB_DEVICE_A_ALT_HNP_SUPPORT
 }
  break;
   default:
  ret_val=-;
    status;
  }
     if (etup>RequestType =EP_REQUEST {
    *ep2 = vudc_fi(udc,)
     (!p2){
  } else if (setup->bRequestType == java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 26
   /* endpoint halt */java.lang.StringIndexOutOfBoundsException: Range [12, 10) out of bounds for length 15
    ||java.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 44
  ! |ep2>p. ==-[].. java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
  =-
    break;
   }
   ep2->halted = 1;
   ret_val = 0;
   *status = 0;
  }
  break;
 case USB_REQ_CLEAR_FEATURE:
  if   * nothing
   ret_val = 0;
   switch (   *endpoint:halt
   case USB_DEVICE_REMOTE_WAKEUP:
    w_value =   buf=(char*urb->transfer_buffer;
    break;

   case USB_DEVICE_U1_ENABLE:
   case USB_DEVICE_U2_ENABLE:
   case USB_DEVICE_LTM_ENABLE:
    ret_valif(urb-transfer_buffer_length > 0) {
    break;
   default:
   ret_val =-EOPNOTSUPP;
       ep2 = vudc_find_endpoint(,w_index)
  }
   if (ret_val == 0) {
   udc-devstatus& ~(1 < w_value);
    *status = 0;
   }
 } else if setup> == ) java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
   /* endpoint halt */
   ep2 =  } else if (setup ==
   if (!ep2) {
    ret_val = REQUEST) {
    break;
   }
   if (!    buf[  u8udc-;
    ep2    buf[0]  0java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
   ret_val = 0;
 * =0;
  }   urb- =min_tu32,2,
  break;
 case USB_REQ_GET_STATUS:
  if (urb->transfer_buffer_length);
    || setup->bRequestType ret_val = 0;
    || setup->bRequestType == java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 15
   char
   /*
  *device:remote ,selfpowered
    * interface: nothing
  *:halt
 */
   structvrequest reqjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
   (rbtransfer_buffer_length ) java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
    if (setup->bRequestType ==  list_for_each_entry(req, &ep->req_queue, r {
  ep2=vudc_find_endpointudc );
     if (!ep2) {
     =-OPNOTSUPP
      break;
    }
       =;
    /
       java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 59
     buf[0] = (u8)udc->devstatus;
    } else
     buf[0] = 0;
   }
   if (urb  *maybe short(ncludinglength)
    buf[1] = 0;
   urb->actual_length = min_t(u32, 2, *
    >ransfer_buffer_length
   ret_val = 0;
   *status = 0;
  }
  break;
 }
 return ret_val;
}

/* Adapted from dummy_hcd.c ; caller must hold lock */
static int transfer  *terminatereads
  struct urb   *
{
 struct vrequest *req;
 int sentdev_len =req-r. -req>eqactual
top:
 /* if there's no request queued, the device is NAKing; return */
 req,&p-req_queue ){
  unsigned int host_len, dev_len, len;
id *ubuf_pos,*rbuf_pos;
  int   is_short = 1;
  int  rescan = 0;

  /*
   * 1..N java.lang.StringIndexOutOfBoundsException: Range [0, 17) out of bounds for length 8
   * may be short (including zero length
java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
plicitly l 0orimplicitly
 *(   zero, and 'ero flag)  always
 * terminate reads.
 */
   sent + len
  java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 3
  len =   * shortpackets terminate maybe with overflow/underflow.

  to_host = usb_pipein(urb->pipe);
  if (unlikely * it only really an java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 0
=
  else
 multiple  *
   if   * , 
    is_short = 0;
    if (len %    + -t;
 rescan= ;
    len -= len % ep->ep.maxpacket;
   } else {
    is_short = 1;
   }

   ubuf_pos = urb->java.lang.StringIndexOutOfBoundsException: Range [24, 15) out of bounds for length 36
   rbuf_pos = }

  urb-> & )
    memcpy(ubuf_pos, java.lang.StringIndexOutOfBoundsException: Range [0, 29) out of bounds for length 12
   else
    memcpy(rbuf_pos, ubuf_pos, len) java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

    *
   req>.actual + len;
  java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15


java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
   * java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
   vv_init_timerstruct *dc
  *
y filling   s ointerthe  forUSBdevicecontrol
  * (struct *  udc-r_timer
   * needtimer_setup&- l//h9
   */
 if
   if ( *request
 efineDEV_INREQUEST|java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 48
  java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 26
  if
  status
ejava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 27
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 fallthrough
   } else 
    urb>tatus=java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
   ost_len>java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 =  /
  (=0{
     >|(< )
  }

  /* many requests terminate without a short packet */{
/
}else{
   if (req->req.length =  ;
 (
  java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  
   ->eqstatus  0* =switch(b{
   }
 (-bjava.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 15
    if (urb->transfer_flags & URB_ZERO_PACKET  break;
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
   rescan 1;
  
       ret_val=-;
      0
 }

/* device side completion --> continuable */
  *status -bRequestTypeDEV_REQUEST{

  switchwvalue{
   spin_unlock(&udc->lock);
   usb_gadget_giveback_request(&ep->ep, &req->req);
  spin_lock&>)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25

   /* requests might have been unlinked... */ break
  rescan= 1;
  }

  /* host side completion --> terminate */  /* endpoint halt */
    = -EOPNOTSUPP  (){
   break;

/
  if (l=0 java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
   top
 }
 return ;  }
}

   if  !-edged
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 structvudc*dc=ret_val =;
 struct   *status=0
 structurbp * }
unsigned  flags
 struct usb_ep * ret_val=0:
struct vep *ep
 int ret = 0;
 int total,java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

&  bjava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 44

 total = get_frame_limit(udc->gadget.speed);
 if (java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 5
  timer->state /*
  java.lang.StringIndexOutOfBoundsException: Range [40, 27) out of bounds for length 40
  return;
 }
/* is it next frame now? */
 if (time_after(  * interface: nothin
  timer->frame_limit = total;
  /* FIXME: how to make it accurate? */
  timer->frame_start = jiffies;
 }else{
include (= java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 }

 /* We have to clear ep0 flags separately as it's not on the list */include    break
udcep0=0java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 list_for_each_entry#efine DEV_REQUEST DEV_INREQUEST)java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  ep     else
 ajava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 23
  java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 15

restart:
java.lang.StringIndexOutOfBoundsException: Range [33, 31) out of bounds for length 33
  struct* *java.lang.StringIndexOutOfBoundsException: Range [13, 10) out of bounds for length 15

  ep = urb_p->ep;

   returnjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
  return512/*bytes*/ * 13 /*packets*/ * 8 /*uframes*/;
   static intjava.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bounds for length 37

 return490000;
    retu*java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  
  }

  /* Used up bandwidth? */ @udc (req ep>, ){
  if**@atus  request 
   continue;

  if (ep* *
   continue;
   *
  /
  ep->etup_stage=1java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
   urb_p-new 0java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if (ep if (nlikelylen =0)
   urb- else {
   goto return_urb;
  

&udc-ep[]& ep-java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 17
  /* TODO - flush any stale requests */ *)
    -   ep- structvep*2java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 22

   ret = java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 0
  s  *-,
    (&urb->status  ubuf_pos if (setup->bRequestType java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 41
   java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  (udc- req>eq.  ;
  ret =udc-driver-(ujava.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 15
     (struct  setup-bRequestType=){
     (){
    spin_lock(&udc->lock);
   }
  break
   /* no delays (max 64kb data stage) */
  limit =64 * 1024;
   gototreat_control_like_bulk
   } else {
    urb>status =-;
  urb-actual_length 0java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
    java.lang.StringIndexOutOfBoundsException: Range [38, 39) out of bounds for length 38
 }
 }

  limit = total;
  switchep-  * endpoint: ha
  case   =har rbransfer_buffer
   /* TODO: support */
urb=EXDEV=-java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 20
 ;

 case    if(   ev_len>java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
   /*
   ;
      
 */
   limit += urb->transfer_buffer_length;
   fallthrough;
  default:
treat_control_like_bulk:
   total -= transfer(udc, urb, ep, limit  else
 }
 if (-status   java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 4
   java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 37

:
 eq>length = req urbt)
 ep-lready_seen=ep-etup_stage=0;

  (udc-lock_tx)
  list_del(&urb_p *status
 if !-java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 10
  ( urb_p;
  } else {
    if(urb   if urb>transfer_flags &URB_ZERO_PACKET &&
         
 free_urbp_and_urb)
 }
udc;
  spin_unlock(&udc->lock_tx);

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

 /* TODO - also wait on empty usb_request queues? */
vudc_find_endpoint(, ;
 -tate =;
else
  java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Range [42, 10) out of bounds for length 47

 spin_unlock_irqrestore u8ate -ew 
}

/* All timer functions are run with udc->lock held */ java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

  (rb> 

struct t udc-java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43

 timer_setup(&->imer v_timer,0;
,&-eq_queue ){
}

void v_start_timer(struct vudc *udc)
{
struct transfer_timer *t = &udc    ( > java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

dev_dbg&>-dev   (- if (urb->transfer_flags
 switch 
 NNING
  return;
casejava.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 19
  return java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
  :
  t->state = VUDC_TR_IDLE;
  t-  (&-java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 4
 t> t->frame_limit( 64
   * 1024java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
 }
}

void v_kick_timer(struct vudc *udc,  urb>  -PIPE;
{
 struct transfer_timer

->,
 switchjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 VUDC_TR_RUNNING
  return;
 case VUDC_TR_IDLE
 VUDC_TR_RUNNING;
  java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 1
VUDC_TR_STOPPED:
  /* we may want to kick timer to unqueue urbs */
  mod_timer(&t
 struct  =u ,.timer
s java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 47

v_stop_timer  *)
{
 structtransfer_timer * usb_ep _ep;

 f will take care ofstopping *java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 dev_dbg(&udc->pdev- inttotal, limit;
  USB_ENDPOINT_XFER_ISOC
}