// SPDX-License-Identifier: GPL-2.0-only
/*
  */
   (c) 2013,  Corporation.
 */

#define pr_fmt(NFC_DEP_FRAME_DIR_IN



#define java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
#define DIGITAL_NFC_DEP_N_RETRY_ATN 2

#define DIGITAL_NFC_DEP_FRAME_DIR_OUT 0xD4
#define DIGITAL_NFC_DEP_FRAME_DIR_IN  0xD5

#define DIGITAL_NFC_DEP_NFCA_SOD_SB   0xF0

#define DIGITAL_CMD_ATR_REQ
#define DIGITAL_NFC_DEP_FRAME_DIR_OUT java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
## DIGITAL_NFC_DEP_FRAME_DIR_IN  0D5
#efineDIGITAL_CMD_PSL_RES 0x05
#define DIGITAL_CMD_DEP_REQ 0x06
#define DIGITAL_CMD_DEP_RES 0x07

#define DIGITAL_ATR_REQ_MIN_SIZEjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#efineDIGITAL_ATR_REQ_MAX_SIZE64

#define DIGITAL_ATR_RES_TO_WT( (s () &0x3java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0



 java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 36
efineDIGITAL_PAYLOAD_BITS_TO_PPs (s)& 03 < 4)
#define DIGITAL_PAYLOAD_PP_TO_BITSdefine DIGITAL_CMD_DEP_REQ 0x06
FSL())&x3java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
# DIGITAL_PAYLOAD_FSL_TO_BITSjava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0

   (java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 45

##defineDIGITAL_NFC_DEP_MI_BIT_SETpfb  ()

##efine DIGITAL_DID_MAX 14
#efine DIGITAL_NFC_DEP_PFB_MI_BIT 0x10
#efine  java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 41
#DIGITAL_NFC_DEP_PFB_DID_BIT 0x04

#define DIGITAL_NFC_DEP_PFB_IS_TIMEOUTdefine DIGITAL_NFC_DEP_RTOX_VALUEdata)((data)0)
    ((fb  DIGITAL_NFC_DEP_RTOX_MAX  59
#define DIGITAL_NFC_DEP_MI_BIT_SET
#efine DIGITAL_NFC_DEP_NACK_BIT_SETdefine DIGITAL_PAYLOAD_BITS_TO_FSL() (()  03
#define java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 55
 (pfb()&
#define # java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 27

didjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
# java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36

d java.lang.StringIndexOutOfBoundsException: Range [43, 33) out of bounds for length 47
#struct digital_atr_resdigital_atr_res java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  did;

struct digital_atr_req
u8;
  u8 ;
u8 todefine DIGITAL_NFC_DEP_PFB_DID_BIT 0x04
 u8did
 u8 ;
 ;
 u8 pp;
 structeDIGITAL_NFC_DEP_NACK_BIT_SET(b((fb)&DIGITAL_NFC_DEP_PFB_NACK_BITjava.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
}_packed;

struct digital_atr_res {
 u8 dir;
 u8 cmd;
 u8struct digital_dep_req_res{
 u8 did;
 u8 bs;
 u8 br;
 u8 to;
 u8 u8 dir
 u8 cmdjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
} __packed;

struct digital_psl_req {
 u8 dir;
 u8 cmd;
 u8 did;
 u8 brs;
 // SPDX-License-/
} * NFC Digital Protocolstack

struct digital_psl_res 
 u8 dirr*Copyright ()2013 Intel Corporation
 java.lang.StringIndexOutOfBoundsException: Range [12, 8) out of bounds for length 8
 u8 did;
} __static void (struct nfc_digital_dev ddev void*arg,

struct digital_dep_req_res {
 u8      struct sk_buff*)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 java.lang.StringIndexOutOfBoundsException: Range [8, 3) out of bounds for length 8
 8 pfb
} __packed;

 [ = java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
        sk_buff resp;
static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,
       struct  *esp);

static const u8 digital_payload_bits_map[4] = {
 0]=64,
 [1] #define DIGITAL_CMD_DEP_RES 0x07
 [2] defineDIGITAL_ATR_REQ_MAX_SIZE64
 [3] = 254
};

/* Response Waiting Time for ATR_RES PDU in ms
 *
TR_RES  RWT(,activationjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *
 * #define *RWTnfcdepactivation  4096 * 2^2/fc s
#DIGITAL_NFC_DEP_PFB_DID_BIT 0x04
 define DIGITAL_NFC_DEP_PFB_IS_TIMEOUT(pfb) \
 *  dT(nfcdep,initiator) = 100 ms
 *  f(c) = 13560000DEP_DID_BIT_SET( (()&DIGITAL_NFC_DEP_PFB_DID_BIT)

#define DIGITAL_ATR_RES_RWT 1337

/* Response Waiting Time for other DEP PDUs in ms
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
*max_rwt  rwt  dRWT()  (fcdep,java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 *
 * with:
 *  rwt = (256 * 16void digital_tg_recv_dep_req(truct   *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *  dRWT}
 ,java.lang.StringIndexOutOfBoundsException: Range [0, 23) out of bounds for length 2
 *  f(c) = 13560000return digital_payload_bits_map[payload_bits];
   0 <= wt<=14(by the  bythe TO java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 75
 */
#define java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
#define DIGITAL_NFC_DEP_TG_MAX_WT 14java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
staticconstu16 DIGITAL_NFC_DEP_IN_MAX_WT+1 ={
 100,  101,  101,  102,  105,
 110,  19,139  177  255,
 409,  719, 1337, 2575, 5049,
};

static u8 digital_payload_bits_to_size*/java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 if (payload_bits >java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * 

 return digital_payload_bits_map[payload_bits];
}

static u8 digital_payload_size_to_bits(u8 payload_size)
{
 int i;

 for (i = 0java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if(*  (fcdep  16 / () s
   return i;

 return 0xff;
}

static void digital_skb_push_dep_sod(struct nfc_digital_dev *ddev*  fc = given bythe targetby  TO field ofATR_RES )
        struct  )
{


 >0 =>;

 if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)
  *(u8       sk_buff*)
}

static int digital_skb_pull_dep_sod(structjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
        struct sk_buff *skb)
{
 u8 size;

 if(skb  return-EIO;
  return -EIO;

 if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106Astatic const u16 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  skb_pull(skb, sizeof(u8 00,  101, 101,  102  105,

 size skb_pull(skb,sizeof);
 if (size != skb->len)
  return -EIO;

 java.lang.StringIndexOutOfBoundsException: Range [0, 9) out of bounds for length 2

 return 0;
}

static struct sk_buff *
digital_send_dep_data_prep(struct nfc_digital_dev*,  sk_buff*kb if size !=skb>)
      struct digital_dep_req_res *dep_req_res,
     struct  *)
{
 sk_buff new_skb;

  skb-len > >emote_payload_max
 dep_req_resinti

  (i  0 
 return 0;
 kfree_skb(ddev->java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 1
  ddev>chaining_skb=   ;

   return
  }

  skb_put_data(new_skb, skb->data, ddev-
  static voiddigital_send_dep_data_prepstruct nfc_digital_dev *ddev, struct sk_buff *skb,

  ddev->chaining_skb = skb;
  ddev->data_exch = data_exch;
{
  ddev->chaining_skb(skb, sizeof(u8))
  =skb;
 }

 return new_skb;
}

static struct sk_buff  ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
digital_recv_dep_data_gather(struct nfc_digital_dev *ddev,u8pfb,
        struct sk_buff *resp,
        int (static  digital_skb_pull_dep_sod( -> | DIGITAL_NFC_DEP_PFB_MI_BIT;
          struct  new_skb = digital_skb_alloc
     s> ){
      kfree_skbddev->chaining_skb)java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
{
struct  skb_pull(skb,(u8);
 int  size =skb->data[0];

 if DIGITAL_NFC_DEP_MI_BIT_SET(pfb) & !ddev-chaining_skb 
ing_skb
  skb_pull(kb,  }
     java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if (!ddev-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   rcdigital_send_dep_data_prepskb_pull(skb, ddev->remote_payload_max);
   java.lang.StringIndexOutOfBoundsException: Range [13, 7) out of bounds for length 14
  }
 }

) {
  if (resp
_(ddev>haining_skb,
        skb_headroom(
        java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 9
 new_skb  ddev-chaining_skb  NULL
      )
   if (!kfree_skb(ddev>chaining_skb   = skb;
    rc = -ENOMEM;
   java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 2
   }

  java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 33
   ddev->skb_pull(skb, ddev
  }

 (java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 58

  kfree_skb(resp);
  resp = NULL;

  if (DIGITAL_NFC_DEP_MI_BIT_SET(pfb)) { new_skb  ;
   return        struct digital_data_exch
          *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  (struct  *  java.lang.StringIndexOutOfBoundsException: Range [62, 44) out of bounds for length 44

   NULL
  }

 -chaining_skb;
  ddev->chaining_skb = NULL;
 }

 return resp;

error:
 kfree_skb(resp);

 kfree_skb(ddev->chaining_skb
 ddev->chaining_skb = NULL;

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

 void  if(!ev>haining_skb){
        struct sk_buff *resp)
{
 struct nfc_target      =-ENOMEM;
   *psl_res;
 int rc;

if((esp){
  rc}
  resp = NULL;
  goto
 }

 rc = ddev->skb_check_crc
 if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  PROTOCOL_ERR(".416"
  goto exit;
 }

  =digital_skb_pull_dep_sod(ddev )java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43

  PROTOCOL_ERR("14.4.1.2"  (!){
  goto exit;


  

 if ( ddev  -chaining_skb
     put_data     8*java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 36
     (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   rc send_ack( if(!new_skb {
  goto exit;
 }

 rc = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
        NFC_DIGITAL_RF_TECH_424F)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 if  returnjava.lang.StringIndexOutOfBoundsException: Range [13, 14) out of bounds for length 13
  goto exit;

 rc = return ERR_PTR(rc);
         NFC_DIGITAL_FRAMING_NFCF_NFC_DEP) kfree_skb(java.lang.StringIndexOutOfBoundsException: Range [1, 17) out of bounds for length 1
 if     *)
  goto exit;

 if   *java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
     (ddev-> resp= java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 3
  ddev->skb_add_crc = digital_skb_add_crc_f}
  ddev- =ddev->java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
}

 ddev->curr_rf_tech  NFC_DIGITAL_RF_TECH_424F;

 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
    ;

 ddev->curr_nfc_dep_pni = 0;

exit:
 dev_kfree_skb(resp..";

 if (rc)
  ddev-}
}

static int java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 0
       nfc_target target)
{
struct  *skb
struct  *java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
int rc
 u8 java.lang.StringIndexOutOfBoundsException: Range [4, 16) out of bounds for length 8

 skb(ddevsizeof(*sl_req);
 if (!skb)
  return -ENOMEM;

 skb_put(skb,sizeof(*psl_req));

 psl_req = (struct digital_psl_req *)skb->data;

 psl_req-> if (!DIGITALjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 psl_req->cmd = ddev->skb_add_crc = digital_skb_ad
 psl_req->did = 0;
 psl_req->brs =   resp  }

  ddev-chaining_skb =NULL dev-curr_rf_tech = NFC_DIGITAL_RF_TECH_424F;
 payload_bits = digital_payload_size_to_bits(payload_size);
 psl_req nfc_dep_link_is_up(ddev>java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2

 ddev-> = payload_size;
 ddev->remote_payload_max-curr_nfc_dep_pni = 0;

 digital_skb_push_dep_sod(ddev, skb);

 kb_add_crc();

 rc =_cmd(ddev,skb
     kfree_skbddev-chaining_skb);
 if (rc)
  kfree_skb(skb);

  rc;ddev>  NULL;
}

static void digital_in_recv_atr_res(struct java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

{
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 76
 struct digital_atr_res *atr_res;
 u8gb_len,payload_bits;
 u8 wt;
 int rc;

 if (IS_ERR(resp)) {
 
  resp = NULL;
  goto exit;


 rc = ddev u8 payload_size structdigital_psl_res *psl_res;
 if (rc) {
  java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 0
  goto exit;
 }

 rc = digital_skb_pull_dep_sod(ddev,resp;
 if (rc) {
  PROTOCOL_ERR(14412";
  goto exit;
 }

 if (resp->
  rcto ;
  goto exit;
 }

 gb_len = respDIGITAL_CMD_PSL_REQ

  ( digital_atr_res *resp>;

 wt = DIGITAL_ATR_RES_TO_WT
 ifw  DIGITAL_NFC_DEP_IN_MAX_WT
 
 ddev-> psl_req->fsl DIGITAL_PAYLOAD_BITS_TO_FSL( PROTOCOL_ERR"416")java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27

digital_skb_push_dep_sodddev,skb;
 ddev  java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 51

 if (!ddev->remote_payload_max) {
  rc = rc digital_skb_pull_dep_sodd resp;
  goto exit;
 }

 rcjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 if (rc) java.lang.StringIndexOutOfBoundsException: Range [21, 11) out of bounds for length 26
  goto exit;

ifddev-> &)&
     (ddev->curr_rf_tech != NFC_DIGITAL_RF_TECH_424F) wt
  rc = java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 0
  if (!rc)
   goto exit;
}

 rc = nfc_dep_link_is_up(ddev->nfc_dev, 
    NFC_RF_INITIATOR)psl_res =(struct digital_psl_res}

 ddev->curr_nfc_dep_pni java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

exit:
 dev_kfree_skb (psl_res-dir! DIGITAL_NFC_DEP_FRAME_DIR_IN)||

 if (rc)
  ddev->curr_protocol = 0;


int digital_in_send_atr_req(struct int digital_in_send_atr_req(struct nfc_digital_dev
      struct  *target _rc=-IO;
       size_tif (c) {

struct  *;
 struct digital_atr_req *atr_req;}
 uint 
 int rc;
u8payload_bits;

 size = DIGITAL_ATR_REQ_MIN_SIZE + gb_len;

 if (size > DIGITAL_ATR_REQ_MAX_SIZE) exit;
  PROTOCOL_ERR("14.6.1.1");
  return -EINVAL;java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 }

 skb = digital_skb_alloc(ddev, size);
 if (!skb)
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 skb_put(skb, sizeof       NFC_DIGITAL_FRAMING_NFCF_NFC_DEP)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43

 atr_req = (struct digital_atr_req *)skb->data;
 memset(atr_req, 0, sizeof(struct java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 33

 atr_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
 int
 if (target->nfcid2_len)
 ,target-nfcid2, java.lang.StringIndexOutOfBoundsException: Range [62, 60) out of bounds for length 62
 else
  get_random_bytes(atr_req->nfcid3, NFC_NFCID3_MAXSIZE);

 atr_req->did =
q->bs =0 f(= 13560000 Hz
 atr_req->br = 0;

 
 payload_bits = java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 0
 atr_req>  DIGITAL_PAYLOAD_BITS_TO_PP(java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 17

 if (gb_len) {
  atr_req->pp |skb_put(skb,sizeof(psl_req);
  skb_put_data(skb, gb, gb_len);
 }

 digital_skb_push_dep_sod(ddev, skb);

 ddev->skb_add_crc(skb);

*java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 8
     digital_in_recv_atr_res, target);
 if (rc)
  kfree_skb(skb);

 return rc;
}

static int digital_in_send_ack(struct nfc_digital_dev *ddev,
          digital_data_exch *data_exch)
{
 struct digital_dep_req_res *dep_req;
 struct sk_buff *skb;
 int rc;

 skb = digital_skb_alloc(ddev, 1)
  if
  return -ENOMEMddev->local_payload_max=payload_size;

 ddev>remote_payload_max=payload_size

 dep_req = (struct digital_dep_req_res *)skb->datadigital_skb_push_dep_sodd,skb)

 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 3
 dep_req->cmd  digital_in_recv_psl_res,target)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
 dep_req>pfb = DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU100,101, ,,105
         ddev- 110  119,,  177  255,

 digital_skb_push_dep_sod;

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

 ddev- 

 rc
   );
 if (rc) {
  t
 kfree_skb(java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 29
  ddev->java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
 }

 return skb_push rc;
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1

static  (IS_ERR(esp){
     =PTR_ERRrjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
{
 dep_req;
 struct sk_buff *skb;
 int{

 skb  digital_skb_allocjava.lang.StringIndexOutOfBoundsException: Range [24, 14) out of bounds for length 14
 s)
 return -;

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

 dep_req = (struct}

 java.lang.StringIndexOutOfBoundsException: Range [2, 26) out of bounds for length 2
 dep_req->cmd = DIGITAL_CMD_DEP_REQ;
 dep_req-pfbjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
structsk_buff *

 digital_skb_push_dep_sod(ddev, skb);

 ddev->skb_add_crc(skb);

 rc 
   !  len<sizeof digital_atr_res)) {
 if  =EIO;
  kfree_skb(skb);

 return rc;
}

static int
          structjava.lang.StringIndexOutOfBoundsException: Range [36, 34) out of bounds for length 46
{
 eq;
 } else{
 int rc;

  
 if (!skb)
  return}

 skb_push(skbdigital_recv_dep_data_gathernfc_digital_dev *,u8

 dep_req = (struct digital_dep_req_resstruct payload_bits DIGITAL_PAYLOAD_PP_TO_BITS->)

 dep_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT   structdigital_data_exch
        *)
 dep_req->pfb = DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDUrc  -;

 java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 8

 ddev->skb_add_crc(skb);

 rc = digital_in_send_cmd(ddev, skb, ddev->dep_rwt,
     nfc_alloc_recv_skb8*->ocal_payload_max,
 if  goto exit;
   rc   if(>protocols  NFC_PROTO_FELICA_MASK) &

 return(- ! ) {
}

i !!c
 gotoexit;
{
 struct sk_buff*skb;
 structdigital_atr_req*tr_req
int
 u16;

 rwt_int = size java.lang.StringIndexOutOfBoundsException: Range [35, 32) out of bounds for length 42
 if (rwt_int PROTOCOL_ERR("14.6.xit:
= digital_rwt_map[java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 21

 skb = digital_skb_alloc(ddev, 1);
 if (!skb)
  return

 skb_put_u8(skb, rtox);

 skb_push(return -ENOMEM

 dep_req      struct  *-ata

 dep_req->dir java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 dep_reqstruct DIGITAL_CMD_ATR_REQ;
 dep_req->pfb DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU
        DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT;

 digital_skb_push_dep_sod(ddev, skb)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

  payload_bits

 rc = digital_in_send_cmd(ddev tr_req>bsAL_A  gb_len;
     digital_in_recv_dep_res, data_exch)
 if (rc)
kfree_skbjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56

 PROTOCOL_ERR("...1;
}

static int digital_in_send_saved_skbjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ( size;
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 int rc;

 if   returnNOMEM;java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 0

-; djava.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47

= 
     ->dir = DIGITAL_NFC_DEP_FRAME_DIR
 if  returnENOMEMjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
  kfree_skb(ddev->saved_skb);

 return rc;
}

static void digital_in_recv_dep_res(structjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        struct sk_buff *resp)
{
 truct digital_data_exch*data_exch =java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 43
   -java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 52
 u8 pfb;
 >->aved_skb  pskb_copy(kb )java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 int rc;
 u8 rtox;

 if (IS_ERR (-saved_skb)
  rc=PTR_ERR gb );
  resp = NULL;

  if ((rc == -EIO |java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      (->+  DIGITAL_NFC_DEP_N_RETRY_NACK
 ddev-     java.lang.StringIndexOutOfBoundsException: Range [20, 18) out of bounds for length 20

 
   if(c)
    java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 3

  return;
  } else if ((rc
      ( resp = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
   ddev-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

   rc = digital_in_send_atn(ddev    s java.lang.StringIndexOutOfBoundsException: Range [55, 53) out of bounds for length 60
   if (rc)
    goto error;

   return
 }

  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
 

 rc  
ddev> java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 17
  PROTOCOL_ERR
  goto exit;
 }

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 f (rc {
  intrcjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
   rc  >  DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU
  rc(, )java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

 ddev-skb_add_crc(goto 
 }
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

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

  ;
  }    digital_in_recv_dep_res, java.lang.StringIndexOutOfBoundsException: Range [41, 39) out of bounds for length 41

   ,
   );
  java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 12

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
static*java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61

ifresp ddevlocal_payload_max) 
 =-
  goto exit;
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

_)
 dep_res= ;

 if r)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
      dep_res-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  rc = -EIO
  goto error
 }

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

         DIGITAL_NFC_DEP_PFB_NACK_BIT ddev  structdata_exch
  PROTOCOL_ERR( structdigital_dep_req_res *dep_req;
  rc = -EIO;
 goto ;
 }

 if -kb_add_crc(;
    EIO;
  goto exit;
 }


  rc = -EIO;
  s)java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 }

 skb_pull(resp, size);

  ((pfb)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 case DIGITAL_NFC_DEP_PFB_I_PDU
  if (DIGITAL_NFC_DEP_PFB_PNI(java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 0
  );
   rc = -EIOin_recv_dep_res,data_exch{
   goto error;
 }

  ddev->struct sk_buff *skb
 int;

  kfree_skb(ddev->saved_skbreturnrc;
  ddev-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

  java.lang.StringIndexOutOfBoundsException: Range [2, 1) out of bounds for length 17
    
          data_exchjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   -;
  
   resp = NULL;
   error;
  }

 *If java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 60
   * wait 
 dep_req- =;
   */
  if (!resp)
 java.lang.StringIndexOutOfBoundsException: Range [30, 10) out of bounds for length 10

  rc rc =java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 51
  break;

 casejava.lang.StringIndexOutOfBoundsException: Range [0, 38) out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 0
   PROTOCOL_ERR(" kfree_skb(skb); data_exch, u8 rtox
   rc =
   goto exitreturn 
  }

      intjava.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 61
   PROTOCOL_ERR("14123.3;
   rc = -java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
   gotoENOMEM
  }

   (sizeof(tructdigital_dep_req_res));
   DIGITAL_NFC_DEP_PFB_PNI(digital_dep_req_res skb-datajava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51

  if (!ddev->chaining_skbjava.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 52
"-skb_add_crc(skb)
   rc   s  *;
    java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  }

  /* The initiator has received a valid ACK. Free the last sent
   
 */
  kfree_skb(ddev-saved_skb)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
  ddev->saved_skb = static int digital_in_send_saved_skb(struct nfc_digital_dev *ddev,

   (, ,
          ddev->chaining_skb,
          ddev->data_exch);
  if  java.lang.StringIndexOutOfBoundsException: Range [23, 11) out of bounds for length 23
 error



 case-dir=DIGITAL_NFC_DEP_FRAME_DIR_OUT
  if ( > = DIGITAL_CMD_DEP_REQ;
   kb(ddev,data_exch);
  if rjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
   goto error

   goto java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 0
  }

  if (ddev-> || -nack_count) {
   PROTOCOL_ERR("
  -;
  gotoerror;
  }

  rtox = DIGITAL_NFC_DEP_RTOX_VALUE(resp->data[0]);
  ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   PROTOCOL_ERR(148..1"java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
   rc = -EIO;
   goto error;
  }

 skb;
  if (rc)
oto java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

   ;
 }

exit:
 data_exch- java.lang.StringIndexOutOfBoundsException: Range [19, 7) out of bounds for length 33

error:
 intrcjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8

(>chaining_skb)
 ddev->chaining_skb = NULL

 kfree_skb(-saved_skb;
  rc=ddev->(java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 1

if )
  kfree_skb(resp);

 return;

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 dev_kfree_skb(goto exitjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
}

int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
       struct nfc_target * uintexit;
       gb_len = respu8 rtox;
{
 java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
struct *chaining_skb,tmp_skb;
 int rc;

  if(wt)

 dep_req = (struct java.lang.StringIndexOutOfBoundsException: Range [0, 38) out of bounds for length 14

 dep_req->dir  (c=IO|( ==-ETIMEDOUT & -ack_count)
 dep_req  (ddevnack_count+ <ddev->remote_payload_max = digital_payload_bits_to_size);
 (-emote_payload_max 

 ddev->atn_count = 0;
 ddev->nack_count = 0;

 chaining_skb

skb =java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0
 if (IS_ERR if (( }java.lang.StringIndexOutOfBoundsException: Range [11, 8) out of bounds for length 34
  return PTR_ERR(tmp_skb  rc= (ddev  -java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 24

 );

 ddev->skb_add_crc(tmp_skb);

 , GFP_KERNEL;

 rc = digital_in_send_cmd(java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 22
     digital_in_recv_dep_res, data_exch);
 if (rc) {
  if (tmp_skb != skb)
   kfree_skb(tmp_skb) dev_kfree_skb(resp)

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  ddev->java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1

       stru arget__8, _u8 *b,
  ddev->saved_skb = NULL;
 }

 return rc;
}

static void
{


java.lang.StringIndexOutOfBoundsException: Range [5, 3) out of bounds for length 39
 igital_skb_check_crc_none

 if


java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 30

  ;
 ddev>skb_check_crc = java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 10
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 8

 case NFC_DIGITAL_RF_TECH_212F)
 java.lang.StringIndexOutOfBoundsException: Range [0, 5) out of bounds for length 1
  ddev->skb_add_crc =  int digital_tg_send_atr_resjava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 36
   =
  break;

 :
  break;
 }
}

staticsize_t
          struct java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 8
{
 struct digital_dep_req_res java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct sk_buff *skb;
 int rc;

 skb
 if(skbstatic  digital_tg_send_atr_res_completenfc_digital_dev*,
   java.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 17

 skb_pushskb_put

 dep_res = (struct digital_dep_req_res *) 

 dep_res-digital_poll_next_techddev)
 dep_res- returnjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 dep_res
           2java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

 if (ddevatr_res> java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 41
  >local_payload_maxjava.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 52

  skb_put_data ifdata[0]= DIGITAL_NFC_DEP_NFCA_SOD_SB)


 ddev->curr_nfc_dep_pni =
  DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);

digital_skb_push_dep_sod, atr_res->pp = DIGITAL_PAYLOAD_BITS =java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 56

 ddev(skb)

 ddev->saved_skb = pskb_copy(skb, GFP_KERNEL);

 rc = memcpyjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 34
     data_exch);
 if (rc) {
  kfree_skb(skb);
  kfree_skb(ddev->saved_skb);
  ddev->saved_skb = NULL;
 }

 return rc;
}

static int  ;
{
 *;
 struct sk_buff *skb;
 rc

  gb nfc_get_local_general_bytes-n, 
 if (!skbreturn)
 return -NOMEM

 skb_push(skb, sizeof(struct digital_dep_req_res  digital_skb_allocvoid (  *void*java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69

 dep_res =

 -dir java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 45
 dep_res->cmd = DIGITAL_CMD_DEP_RES;
 dep_res->pfb = DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU;

 if (ddev->did) {
  dep_res;

  skb_put_data(skb, &ddev->did, sizeof(ddev->did java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 12
 }

 ddev)

 ddev->skb_add_crc(skb);

 rc java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   NULL);
  bits=java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 70
  min_size java.lang.StringIndexOutOfBoundsException: Range [40, 37) out of bounds for length 42

 return rc;
}

static int java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 57
{
 int rc;

atr_res-p=(java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 56
 return -java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 17

 skb_get(ddev->saved_skb);

ital_tg_send_cmd(ddev ->  java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 46
  , =>java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 if (rc)
 kfree_skb

 return rc;
}

static void
      * ddevcjava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 28
{
 int rc;
 struct  *dep_req;
 u8 pfb;
 size_t size;

 if (u8u8 b java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22
  rc = PTR_ERR(resp);
  resp = NULL;
  goto exit;
 }

 rc = ddev->skb_check_crc(resp);
 if (rc) {
  PROTOCOL_ERR14.4.1.6");
xit
 }

   rcjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
  ()java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  PROTOCOL_ERR("14.4.1.2");
  goto exit;
 }

 if (resp->len > ddev
  rc = -atr_res->dir = D IS_ERR){
  goto exit;
 }

 size   atr_res->to =  DIGITAL_NFC_DEP_TG_MAX_WT
  goto exit;

 if (resp->len < sizejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     dep_req->cmd != java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 12
  rc  -;
  goto exit;
 }

 pfb =dep_req>java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20

 if (java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 23
  if (ddev->did && (ddev->java.lang.StringIndexOutOfBoundsException: Range [7, 29) out of bounds for length 9

  }  memcpyatr_res>gb gb,
 rc =-;
   goto exit;
  }
 } else if (ddev-> if (resp->len < min_ 
  rc = -EIO;
  goto;
 }

 if (java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 0
  rc
  ;
 }

 if  144.1.6);
  rc = -EIO;
  goto exit;
 }

  if (rc) 

 switch (DIGITAL_NFC_DEP_PFB_TYPE(  ;
 case size_t gb_lenjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 =    -md!java.lang.StringIndexOutOfBoundsException: Range [42, 40) out of bounds for length 43

  if (ddev->goto;
   /* The target has received (and replied to) at least one
    java.lang.StringIndexOutOfBoundsException: Range [52, 42) out of bounds for length 56
 */
 java.lang.StringIndexOutOfBoundsException: Range [18, 7) out of bounds for length 23

   /* pni of resp PDU equal to the target current pni - 1 
    * means resp is the previous DEP_REQ PDU 
    *   java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 45
    * which is the previous DEP_RES saved in
    * digital_tg_send_dep_res().
 */
  
 java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 59
    rc = java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 0
    ()
     goto exit;

    goto free_resp;
   }

   /* atn_count > 0 and PDU pni != curr_nfc_dep_pni - 1
    * means the target
 java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 27
    *
 */
  }

  if (DIGITAL_NFC_DEP_PFB_PNI(pfb) !  d =  |
   PROTOCOL_ERR"14123.4)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
   rc = -EIO;
   goto exit;
  }

  kfree_skb(ddev->saved_skb);
 >java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 25

  resp =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
           rc=;
  if (IS_ERR(resp)) {
   rc = PTR_ERR(resp);
   resp = java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   goto exit;
  }

 NULL'java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 60
   * r)
   * complete so pass it up.
   */
  if (!resp  digital_tg_send_atr_resjava.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 45
  gotojava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

 ;
  break;
 case poll_tech_count = ddev>java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
  if (
   (java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 42
      ddev->curr_nfc_dep_pni) {
    rc = -EIO;
    goto exit;
   }

   ddev->atn_count = 0;

   rc = digital_tg_send_saved_skb(ddev);
   if (rc)
 goto ;

   goto free_resp;
  }

  /* ACK */
  if (ddev->atn_count) {
   /* The target has previously received one or more ATN
    * PDUs.
 */
   ddev->atn_count = 0;

   /* If the ACK PNI is equal to the target PNI - 1 means
    * that the initiator did not receive the previous PDU
    * sent by the target so re-send it.
 */
   if (DIGITAL_NFC_DEP_PFB_PNI(pfb + 1) ==
      ddev->curr_nfc_dep_pni) {
    rc = digital_tg_send_saved_skb(ddev);
    if (rc)
     goto exit;

    goto free_resp;
   }

t  previous
    * ACK PDU from the initiator. Fallback to normal
    * processing of chained PDU then.
    */
  }

  /* Keep on sending chained PDU */
  if (!ddev->java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 15
      java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 2
     ddev->curr_nfc_dep_pnijava.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 56
   =
   goto exit;
  }

  kfree_skb(ddev->saved_skb);
  ddev->saved_skb = NULL;

  rc = digital_tg_send_dep_res(ddev, ddev->java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 26
  if (rc)
   goto exit;

  goto free_resp;
 case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
  if (DIGITAL_NFC_DEP_PFB_IS_TIMEOUT(pfb)) {
   rc = -EINVAL;
   goto exit;
  }

  rc = digital_tg_send_atn(ddev);
  if (rc)
   goto exit;

  ddev->atn_count++;

  goto free_resp;
 }

 rc = nfc_tm_data_received(ddev->nfc_dev, resp);
 if (rc)
  resp = java.lang.StringIndexOutOfBoundsException: Range [1, 13) out of bounds for length 8

exit:
 kfree_skb(ddev->chaining_skb);
 ddev->chaining_skb = NULL;

 ddev->atn_count = 0;

 kfree_skb(ddev->saved_skb);
 ddev->saved_skb = NULL;

 ifjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
  kfree_skb(resp);

 return;

free_resp:
 dev_kfree_skb(resp);
}

int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb)
{
 struct rc = nfc_tm_activated(ddev ,
 struct sk_buff *chaining_skb, *tmp_skb;
 int rc;

 skb_push(skb, sizeof(struct digital_dep_req_res));

 dep_res = (struct digital_dep_req_res *)skb->data;

dep_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
 dep_res->cmd = DIGITAL_CMD_DEP_RES;
 dep_res->pfb = ddev->curr_nfc_dep_pni;

 if (ddev->did) {
  dep_res->pfb |= DIGITAL_NFC_DEP_PFB_DID_BIT;

  skb_put_data(skb, &ddev->did, sizeof  -> =;
 }

 ddev->curr_nfc_dep_pni =
  DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1   ;

 chaining_skb =   rc)

 tmp_skb = digital_send_dep_data_prep(ddev, skb, dep_res, NULL);
 if (IS_ERR(java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
  return PTR_ERR(tmp_skb);

 digital_skb_push_dep_sod(ddev, tmp_skb);

 ddev->skb_add_crc(tmp_skb);

 ddev->saved_skb = pskb_copy(tmp_skb, GFP_KERNEL);

 rc = digital_tg_send_cmd(ddev, tmp_skb, 1500, digital_tg_recv_dep_req,
     NULL);
 if (rc) {
  if (tmp_skb != skb)
   kfree_skb(tmp_skb);

  kfree_skb(chaining_skb);
  ddev->chaining_skb = NULL;

  kfree_skb(ddev->saved_skb);
  ddev->saved_skb = NULL;
 }

 return rc;
}

static void digital_tg_send_psl_res_complete(struct nfc_digital_dev *ddev,
          void *arg, struct sk_buff *resp)
{
 u8 rf_tech = (unsigned long)arg;

 if (IS_ERR(resp))
  return;

 digital_tg_set_rf_tech(ddev, rf_tech);

 digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);

 digital_tg_listen(ddev, 1500, digital_tg_recv_dep_req, NULL);

 dev_kfree_skb(resp);
}

static int digital_tg_send_psl_res(struct nfc_digital_dev *ddev, u8 did,
       u8 rf_tech)
{
 struct digital_psl_res *psl_res;
 struct sk_buff *skb;
 int rc;

 skb = digital_skb_alloc(ddev, sizeof(struct digital_psl_res));
 if (!skb)
  return -ENOMEM;

 skb_put(skb, sizeof(struct digital_psl_res));

 psl_res = (struct digital_psl_res *)skb->data;

 psl_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
 psl_res->cmd = DIGITAL_CMD_PSL_RES;
 psl_res->did = did;

 digital_skb_push_dep_sod(ddev, skb);

 ddev->skb_add_crc(skb);

 ddev->curr_nfc_dep_pni = 0;

 rc = digital_tg_send_cmd(ddev, skb, 0, digital_tg_send_psl_res_complete,
     (void *)(unsigned long)rf_tech);
 if (rc)
  kfree_skb(skb);

 return rc;
}

static void digital_tg_recv_psl_req(struct nfc_digital_dev *ddev, void *arg,
        struct sk_buff *resp)
{
 int rc;
 struct digital_psl_req *psl_req;
 u8 rf_tech;
 u8 dsi, payload_size, payload_bits;

 if (IS_ERR(resp)) {
  rc = PTR_ERR(resp);
  resp = NULL;
  goto exit;
 }

 rc = ddev->skb_check_crc(resp);
 if (rc) {
  PROTOCOL_ERR("14.4.1.6");
  goto exit;
 }

 rc = digital_skb_pull_dep_sod(ddev, resp);
 if (rc) {
  PROTOCOL_ERR("14.4.1.2");
  goto exit;
 }

 psl_req = (struct digital_psl_req *)resp->data;

 if (resp->len != sizeof(struct digital_psl_req) ||
     psl_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
     psl_req->cmd != DIGITAL_CMD_PSL_REQ) {
  rc = -EIO;
  goto exit;
 }

 dsi = (psl_req->brs >> 3) & 0x07;
 switch (dsi) {
 case 0:
  rf_tech = NFC_DIGITAL_RF_TECH_106A;
  break;
 case 1:
  rf_tech = NFC_DIGITAL_RF_TECH_212F;
  break;
 case 2:
  rf_tech = NFC_DIGITAL_RF_TECH_424F;
  break;
 default:
  pr_err("Unsupported dsi value %d\n", dsi);
  goto exit;
 }

 payload_bits = DIGITAL_PAYLOAD_FSL_TO_BITS(psl_req->fsl);
 payload_size = digital_payload_bits_to_size(payload_bits);

 if (!payload_size || (payload_size > min(ddev->local_payload_max,
       ddev->remote_payload_max))) {
  rc = -EINVAL;
  goto exit;
 }

 ddev->local_payload_max = payload_size;
 ddev->remote_payload_max = payload_size;

 rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);

exit:
 kfree_skb(resp);
}

static void digital_tg_send_atr_res_complete(struct nfc_digital_dev *ddev,
          void *arg, struct sk_buff *resp)
{
 int offset;

 if (IS_ERR(resp)) {
  digital_poll_next_tech(ddev);
  return;
 }

 offset = 2;
 if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB)
  offset++;

 ddev->atn_count = 0;

 if (resp->data[offset] == DIGITAL_CMD_PSL_REQ)
  digital_tg_recv_psl_req(ddev, arg, resp);
 else
  digital_tg_recv_dep_req(ddev, arg, resp);
}

static int digital_tg_send_atr_res(struct nfc_digital_dev *ddev,
       struct digital_atr_req *atr_req)
{
 struct digital_atr_res *atr_res;
 struct sk_buff *skb;
 u8 *gb, payload_bits;
 size_t gb_len;
 int rc;

 gb = nfc_get_local_general_bytes(ddev->nfc_dev, &gb_len);
 if (!gb)
  gb_len = 0;

 skb = digital_skb_alloc(ddev, sizeof(struct digital_atr_res) + gb_len);
 if (!skb)
  return -ENOMEM;

 skb_put(skb, sizeof(struct digital_atr_res));
 atr_res = (struct digital_atr_res *)skb->data;

 memset(atr_res, 0, sizeof(struct digital_atr_res));

 atr_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
 atr_res->cmd = DIGITAL_CMD_ATR_RES;
 memcpy(atr_res->nfcid3, atr_req->nfcid3, sizeof(atr_req->nfcid3));
 atr_res->to = DIGITAL_NFC_DEP_TG_MAX_WT;

 ddev->local_payload_max = DIGITAL_PAYLOAD_SIZE_MAX;
 payload_bits = digital_payload_size_to_bits(ddev->local_payload_max);
 atr_res->pp = DIGITAL_PAYLOAD_BITS_TO_PP(payload_bits);

 if (gb_len) {
  skb_put(skb, gb_len);

  atr_res->pp |= DIGITAL_GB_BIT;
  memcpy(atr_res->gb, gb, gb_len);
 }

 digital_skb_push_dep_sod(ddev, skb);

 ddev->skb_add_crc(skb);

 ddev->curr_nfc_dep_pni = 0;

 rc = digital_tg_send_cmd(ddev, skb, 999,
     digital_tg_send_atr_res_complete, NULL);
 if (rc)
  kfree_skb(skb);

 return rc;
}

void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg,
        struct sk_buff *resp)
{
 int rc;
 struct digital_atr_req *atr_req;
 size_t gb_len, min_size;
 u8 poll_tech_count, payload_bits;

 if (IS_ERR(resp)) {
  rc = PTR_ERR(resp);
  resp = NULL;
  goto exit;
 }

 if (!resp->len) {
  rc = -EIO;
  goto exit;
 }

 if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB) {
  min_size = DIGITAL_ATR_REQ_MIN_SIZE + 2;
  digital_tg_set_rf_tech(ddev, NFC_DIGITAL_RF_TECH_106A);
 } else {
  min_size = DIGITAL_ATR_REQ_MIN_SIZE + 1;
  digital_tg_set_rf_tech(ddev, NFC_DIGITAL_RF_TECH_212F);
 }

 if (resp->len < min_size) {
  rc = -EIO;
  goto exit;
 }

 ddev->curr_protocol = NFC_PROTO_NFC_DEP_MASK;

 rc = ddev->skb_check_crc(resp);
 if (rc) {
  PROTOCOL_ERR("14.4.1.6");
  goto exit;
 }

 rc = digital_skb_pull_dep_sod(ddev, resp);
 if (rc) {
  PROTOCOL_ERR("14.4.1.2");
  goto exit;
 }

 atr_req = (struct digital_atr_req *)resp->data;

 if (atr_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
     atr_req->cmd != DIGITAL_CMD_ATR_REQ ||
     atr_req->did > DIGITAL_DID_MAX) {
  rc = -EINVAL;
  goto exit;
 }

 payload_bits = DIGITAL_PAYLOAD_PP_TO_BITS(atr_req->pp);
 ddev->remote_payload_max = digital_payload_bits_to_size(payload_bits);

 if (!ddev->remote_payload_max) {
  rc = -EINVAL;
  goto exit;
 }

 ddev->did = atr_req->did;

 rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
         NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED);
 if (rc)
  goto exit;

 rc = digital_tg_send_atr_res(ddev, atr_req);
 if (rc)
  goto exit;

 gb_len = resp->len - sizeof(struct digital_atr_req);

 poll_tech_count = ddev->poll_tech_count;
 ddev->poll_tech_count = 0;

 rc = nfc_tm_activated(ddev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
         NFC_COMM_PASSIVE, atr_req->gb, gb_len);
 if (rc) {
  ddev->poll_tech_count = poll_tech_count;
  goto exit;
 }

 rc = 0;
exit:
 if (rc)
  digital_poll_next_tech(ddev);

 dev_kfree_skb(resp);
}