/******************************************************************************
*
* Copyright (C) 1999-2013 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This file contains functions that interface with the NFC NCI transport.
* On the receive side, it routes events to the appropriate handler
* (callback). On the transmit side, it manages the command transmission.
*
******************************************************************************/
#include <string.h>
#include "nfc_target.h"
#if NFC_INCLUDED == TRUE
#include "nfc_hal_api.h"
#include "nfc_api.h"
#include "nci_defs.h"
#include "nci_hmsgs.h"
#include "nfc_int.h"
#include "rw_api.h"
#include "rw_int.h"
#include "hcidefs.h"
#include "nfc_hal_api.h"
#if (NFC_RW_ONLY == FALSE)
static const UINT8 nfc_mpl_code_to_size[] =
{64, 128, 192, 254};
#endif /* NFC_RW_ONLY */
#define NFC_PB_ATTRIB_REQ_FIXED_BYTES 1
#define NFC_LB_ATTRIB_REQ_FIXED_BYTES 8
/*******************************************************************************
**
** Function nfc_ncif_update_window
**
** Description Update tx cmd window to indicate that NFCC can received
**
** Returns void
**
*********************************************************************************/
void nfc_ncif_update_window (void)
{
/* Sanity check - see if we were expecting a update_window */
if (nfc_cb.nci_cmd_window == NCI_MAX_CMD_WINDOW)
{
if (nfc_cb.nfc_state != NFC_STATE_W4_HAL_CLOSE)
{
NFC_TRACE_ERROR0("nfc_ncif_update_window: Unexpected call");
}
return;
}
/* Stop command-pending timer */
nfc_stop_timer (&nfc_cb.nci_wait_rsp_timer);
nfc_cb.p_vsc_cback = NULL;
nfc_cb.nci_cmd_window++;
/* Check if there were any commands waiting to be sent */
nfc_ncif_check_cmd_queue (NULL);
}
/*******************************************************************************
**
** Function nfc_ncif_cmd_timeout
**
** Description Handle a command timeout
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_cmd_timeout (void)
{
NFC_TRACE_ERROR0 ("nfc_ncif_cmd_timeout");
/* report an error */
nfc_ncif_event_status(NFC_GEN_ERROR_REVT, NFC_STATUS_HW_TIMEOUT);
nfc_ncif_event_status(NFC_NFCC_TIMEOUT_REVT, NFC_STATUS_HW_TIMEOUT);
/* if enabling NFC, notify upper layer of failure */
if (nfc_cb.nfc_state == NFC_STATE_CORE_INIT)
{
nfc_enabled (NFC_STATUS_FAILED, NULL);
}
/* terminate the process so we'll try again */
NFC_TRACE_ERROR0 ("NFC controller stopped responding, aborting the NFC process");
abort();
}
/*******************************************************************************
**
** Function nfc_wait_2_deactivate_timeout
**
** Description Handle a command timeout
**
** Returns void
**
*******************************************************************************/
void nfc_wait_2_deactivate_timeout (void)
{
NFC_TRACE_ERROR0 ("nfc_wait_2_deactivate_timeout");
nfc_cb.flags &= ~NFC_FL_DEACTIVATING;
nci_snd_deactivate_cmd ((UINT8) ((TIMER_PARAM_TYPE) nfc_cb.deactivate_timer.param));
}
/*******************************************************************************
**
** Function nfc_ncif_send_data
**
** Description This function is called to add the NCI data header
** and send it to NCIT task for sending it to transport
** as credits are available.
**
** Returns void
**
*******************************************************************************/
UINT8 nfc_ncif_send_data (tNFC_CONN_CB *p_cb, BT_HDR *p_data)
{
UINT8 *pp;
UINT8 *ps;
UINT8 ulen = NCI_MAX_PAYLOAD_SIZE;
BT_HDR *p;
UINT8 pbf = 1;
UINT8 buffer_size = p_cb->buff_size;
UINT8 hdr0 = p_cb->conn_id;
BOOLEAN fragmented = FALSE;
NFC_TRACE_DEBUG3 ("nfc_ncif_send_data :%d, num_buff:%d qc:%d", p_cb->conn_id, p_cb->num_buff, p_cb->tx_q.count);
if (p_cb->id == NFC_RF_CONN_ID)
{
if (nfc_cb.nfc_state != NFC_STATE_OPEN)
{
if (nfc_cb.nfc_state == NFC_STATE_CLOSING)
{
if ((p_data == NULL) && /* called because credit from NFCC */
(nfc_cb.flags & NFC_FL_DEACTIVATING))
{
if (p_cb->init_credits == p_cb->num_buff)
{
/* all the credits are back */
nfc_cb.flags &= ~NFC_FL_DEACTIVATING;
NFC_TRACE_DEBUG2 ("deactivating NFC-DEP init_credits:%d, num_buff:%d", p_cb->init_credits, p_cb->num_buff);
nfc_stop_timer(&nfc_cb.deactivate_timer);
nci_snd_deactivate_cmd ((UINT8)((TIMER_PARAM_TYPE)nfc_cb.deactivate_timer.param));
}
}
}
return NCI_STATUS_FAILED;
}
}
if (p_data)
{
/* always enqueue the data to the tx queue */
GKI_enqueue (&p_cb->tx_q, p_data);
}
/* try to send the first data packet in the tx queue */
p_data = (BT_HDR *)GKI_getfirst (&p_cb->tx_q);
/* post data fragment to NCIT task as credits are available */
while (p_data && (p_data->len > 0) && (p_cb->num_buff > 0))
{
if (p_data->len <= buffer_size)
{
pbf = 0; /* last fragment */
ulen = (UINT8)(p_data->len);
fragmented = FALSE;
}
else
{
fragmented = TRUE;
ulen = buffer_size;
}
if (!fragmented)
{
/* if data packet is not fragmented, use the original buffer */
p = p_data;
p_data = (BT_HDR *)GKI_dequeue (&p_cb->tx_q);
}
else
{
/* the data packet is too big and need to be fragmented
* prepare a new GKI buffer
* (even the last fragment to avoid issues) */
if ((p = NCI_GET_CMD_BUF(ulen)) == NULL)
return (NCI_STATUS_BUFFER_FULL);
p->len = ulen;
p->offset = NCI_MSG_OFFSET_SIZE + NCI_DATA_HDR_SIZE + 1;
pp = (UINT8 *)(p + 1) + p->offset;
ps = (UINT8 *)(p_data + 1) + p_data->offset;
memcpy (pp, ps, ulen);
/* adjust the BT_HDR on the old fragment */
p_data->len -= ulen;
p_data->offset += ulen;
}
p->event = BT_EVT_TO_NFC_NCI;
p->layer_specific = pbf;
p->len += NCI_DATA_HDR_SIZE;
p->offset -= NCI_DATA_HDR_SIZE;
pp = (UINT8 *)(p + 1) + p->offset;
/* build NCI Data packet header */
NCI_DATA_PBLD_HDR(pp, pbf, hdr0, ulen);
if (p_cb->num_buff != NFC_CONN_NO_FC)
p_cb->num_buff--;
/* send to HAL */
HAL_WRITE(p);
if (!fragmented)
{
/* check if there are more data to send */
p_data = (BT_HDR *)GKI_getfirst (&p_cb->tx_q);
}
}
return (NCI_STATUS_OK);
}
/*******************************************************************************
**
** Function nfc_ncif_check_cmd_queue
**
** Description Send NCI command to the transport
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_check_cmd_queue (BT_HDR *p_buf)
{
UINT8 *ps;
/* If there are commands waiting in the xmit queue, or if the controller cannot accept any more commands, */
/* then enqueue this command */
if (p_buf)
{
if ((nfc_cb.nci_cmd_xmit_q.count) || (nfc_cb.nci_cmd_window == 0))
{
GKI_enqueue (&nfc_cb.nci_cmd_xmit_q, p_buf);
p_buf = NULL;
}
}
/* If controller can accept another command, then send the next command */
if (nfc_cb.nci_cmd_window > 0)
{
/* If no command was provided, or if older commands were in the queue, then get cmd from the queue */
if (!p_buf)
p_buf = (BT_HDR *)GKI_dequeue (&nfc_cb.nci_cmd_xmit_q);
if (p_buf)
{
/* save the message header to double check the response */
ps = (UINT8 *)(p_buf + 1) + p_buf->offset;
memcpy(nfc_cb.last_hdr, ps, NFC_SAVED_HDR_SIZE);
memcpy(nfc_cb.last_cmd, ps + NCI_MSG_HDR_SIZE, NFC_SAVED_CMD_SIZE);
if (p_buf->layer_specific == NFC_WAIT_RSP_VSC)
{
/* save the callback for NCI VSCs) */
nfc_cb.p_vsc_cback = (void *)((tNFC_NCI_VS_MSG *)p_buf)->p_cback;
}
/* send to HAL */
HAL_WRITE(p_buf);
/* Indicate command is pending */
nfc_cb.nci_cmd_window--;
/* start NFC command-timeout timer */
nfc_start_timer (&nfc_cb.nci_wait_rsp_timer, (UINT16)(NFC_TTYPE_NCI_WAIT_RSP), nfc_cb.nci_wait_rsp_tout);
}
}
if (nfc_cb.nci_cmd_window == NCI_MAX_CMD_WINDOW)
{
/* the command queue must be empty now */
if (nfc_cb.flags & NFC_FL_CONTROL_REQUESTED)
{
/* HAL requested control or stack needs to handle pre-discover */
nfc_cb.flags &= ~NFC_FL_CONTROL_REQUESTED;
if (nfc_cb.flags & NFC_FL_DISCOVER_PENDING)
{
if (nfc_cb.p_hal->prediscover ())
{
/* HAL has the command window now */
nfc_cb.flags |= NFC_FL_CONTROL_GRANTED;
nfc_cb.nci_cmd_window = 0;
}
else
{
/* HAL does not need to send command,
* - restore the command window and issue the discovery command now */
nfc_cb.flags &= ~NFC_FL_DISCOVER_PENDING;
ps = (UINT8 *)nfc_cb.p_disc_pending;
nci_snd_discover_cmd (*ps, (tNFC_DISCOVER_PARAMS *)(ps + 1));
GKI_freebuf (nfc_cb.p_disc_pending);
nfc_cb.p_disc_pending = NULL;
}
}
else if (nfc_cb.flags & NFC_FL_HAL_REQUESTED)
{
/* grant the control to HAL */
nfc_cb.flags &= ~NFC_FL_HAL_REQUESTED;
nfc_cb.flags |= NFC_FL_CONTROL_GRANTED;
nfc_cb.nci_cmd_window = 0;
nfc_cb.p_hal->control_granted ();
}
}
}
}
/*******************************************************************************
**
** Function nfc_ncif_send_cmd
**
** Description Send NCI command to the NCIT task
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_send_cmd (BT_HDR *p_buf)
{
/* post the p_buf to NCIT task */
p_buf->event = BT_EVT_TO_NFC_NCI;
p_buf->layer_specific = 0;
nfc_ncif_check_cmd_queue (p_buf);
}
/*******************************************************************************
**
** Function nfc_ncif_process_event
**
** Description This function is called to process the data/response/notification
** from NFCC
**
** Returns TRUE if need to free buffer
**
*******************************************************************************/
BOOLEAN nfc_ncif_process_event (BT_HDR *p_msg)
{
UINT8 mt, pbf, gid, *p, *pp;
BOOLEAN free = TRUE;
UINT8 oid;
UINT8 *p_old, old_gid, old_oid, old_mt;
p = (UINT8 *) (p_msg + 1) + p_msg->offset;
pp = p;
NCI_MSG_PRS_HDR0 (pp, mt, pbf, gid);
switch (mt)
{
case NCI_MT_DATA:
NFC_TRACE_DEBUG0 ("NFC received data");
nfc_ncif_proc_data (p_msg);
free = FALSE;
break;
case NCI_MT_RSP:
NFC_TRACE_DEBUG1 ("NFC received rsp gid:%d", gid);
oid = ((*pp) & NCI_OID_MASK);
p_old = nfc_cb.last_hdr;
NCI_MSG_PRS_HDR0(p_old, old_mt, pbf, old_gid);
old_oid = ((*p_old) & NCI_OID_MASK);
/* make sure this is the RSP we are waiting for before updating the command window */
if ((old_gid != gid) || (old_oid != oid))
{
NFC_TRACE_ERROR2 ("nfc_ncif_process_event unexpected rsp: gid:0x%x, oid:0x%x", gid, oid);
return TRUE;
}
switch (gid)
{
case NCI_GID_CORE: /* 0000b NCI Core group */
free = nci_proc_core_rsp (p_msg);
break;
case NCI_GID_RF_MANAGE: /* 0001b NCI Discovery group */
nci_proc_rf_management_rsp (p_msg);
break;
#if (NFC_NFCEE_INCLUDED == TRUE)
#if (NFC_RW_ONLY == FALSE)
case NCI_GID_EE_MANAGE: /* 0x02 0010b NFCEE Discovery group */
nci_proc_ee_management_rsp (p_msg);
break;
#endif
#endif
case NCI_GID_PROP: /* 1111b Proprietary */
nci_proc_prop_rsp (p_msg);
break;
default:
NFC_TRACE_ERROR1 ("NFC: Unknown gid:%d", gid);
break;
}
nfc_ncif_update_window ();
break;
case NCI_MT_NTF:
NFC_TRACE_DEBUG1 ("NFC received ntf gid:%d", gid);
switch (gid)
{
case NCI_GID_CORE: /* 0000b NCI Core group */
nci_proc_core_ntf (p_msg);
break;
case NCI_GID_RF_MANAGE: /* 0001b NCI Discovery group */
nci_proc_rf_management_ntf (p_msg);
break;
#if (NFC_NFCEE_INCLUDED == TRUE)
#if (NFC_RW_ONLY == FALSE)
case NCI_GID_EE_MANAGE: /* 0x02 0010b NFCEE Discovery group */
nci_proc_ee_management_ntf (p_msg);
break;
#endif
#endif
case NCI_GID_PROP: /* 1111b Proprietary */
nci_proc_prop_ntf (p_msg);
break;
default:
NFC_TRACE_ERROR1 ("NFC: Unknown gid:%d", gid);
break;
}
break;
default:
NFC_TRACE_DEBUG2 ("NFC received unknown mt:0x%x, gid:%d", mt, gid);
}
return (free);
}
/*******************************************************************************
**
** Function nfc_ncif_rf_management_status
**
** Description This function is called to report an event
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_rf_management_status (tNFC_DISCOVER_EVT event, UINT8 status)
{
tNFC_DISCOVER evt_data;
if (nfc_cb.p_discv_cback)
{
evt_data.status = (tNFC_STATUS) status;
(*nfc_cb.p_discv_cback) (event, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_set_config_status
**
** Description This function is called to report NFC_SET_CONFIG_REVT
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_set_config_status (UINT8 *p, UINT8 len)
{
tNFC_RESPONSE evt_data;
if (nfc_cb.p_resp_cback)
{
evt_data.set_config.status = (tNFC_STATUS) *p++;
evt_data.set_config.num_param_id = NFC_STATUS_OK;
if (evt_data.set_config.status != NFC_STATUS_OK)
{
evt_data.set_config.num_param_id = *p++;
STREAM_TO_ARRAY (evt_data.set_config.param_ids, p, evt_data.set_config.num_param_id);
}
(*nfc_cb.p_resp_cback) (NFC_SET_CONFIG_REVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_event_status
**
** Description This function is called to report an event
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_event_status (tNFC_RESPONSE_EVT event, UINT8 status)
{
tNFC_RESPONSE evt_data;
if (nfc_cb.p_resp_cback)
{
evt_data.status = (tNFC_STATUS) status;
(*nfc_cb.p_resp_cback) (event, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_error_status
**
** Description This function is called to report an error event to data cback
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_error_status (UINT8 conn_id, UINT8 status)
{
tNFC_CONN_CB * p_cb;
p_cb = nfc_find_conn_cb_by_conn_id (conn_id);
if (p_cb && p_cb->p_cback)
{
(*p_cb->p_cback) (conn_id, NFC_ERROR_CEVT, (tNFC_CONN *) &status);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_rf_field_ntf
**
** Description This function is called to process RF field notification
**
** Returns void
**
*******************************************************************************/
#if (NFC_RW_ONLY == FALSE)
void nfc_ncif_proc_rf_field_ntf (UINT8 rf_status)
{
tNFC_RESPONSE evt_data;
if (nfc_cb.p_resp_cback)
{
evt_data.status = (tNFC_STATUS) NFC_STATUS_OK;
evt_data.rf_field.rf_field = rf_status;
(*nfc_cb.p_resp_cback) (NFC_RF_FIELD_REVT, &evt_data);
}
}
#endif
/*******************************************************************************
**
** Function nfc_ncif_proc_credits
**
** Description This function is called to process data credits
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_credits(UINT8 *p, UINT16 plen)
{
UINT8 num, xx;
tNFC_CONN_CB * p_cb;
num = *p++;
for (xx = 0; xx < num; xx++)
{
p_cb = nfc_find_conn_cb_by_conn_id(*p++);
if (p_cb && p_cb->num_buff != NFC_CONN_NO_FC)
{
p_cb->num_buff += (*p);
#if (BT_USE_TRACES == TRUE)
if (p_cb->num_buff > p_cb->init_credits)
{
if (nfc_cb.nfc_state == NFC_STATE_OPEN)
{
/* if this happens in activated state, it's very likely that our NFCC has issues */
/* However, credit may be returned after deactivation */
NFC_TRACE_ERROR2( "num_buff:0x%x, init_credits:0x%x", p_cb->num_buff, p_cb->init_credits);
}
p_cb->num_buff = p_cb->init_credits;
}
#endif
/* check if there's nay data in tx q to be sent */
nfc_ncif_send_data (p_cb, NULL);
}
p++;
}
}
/*******************************************************************************
**
** Function nfc_ncif_decode_rf_params
**
** Description This function is called to process the detected technology
** and mode and the associated parameters for DISCOVER_NTF and
** ACTIVATE_NTF
**
** Returns void
**
*******************************************************************************/
UINT8 * nfc_ncif_decode_rf_params (tNFC_RF_TECH_PARAMS *p_param, UINT8 *p)
{
tNFC_RF_PA_PARAMS *p_pa;
UINT8 len, *p_start, u8;
tNFC_RF_PB_PARAMS *p_pb;
tNFC_RF_LF_PARAMS *p_lf;
tNFC_RF_PF_PARAMS *p_pf;
tNFC_RF_PISO15693_PARAMS *p_i93;
len = *p++;
p_start = p;
memset ( &p_param->param, 0, sizeof (tNFC_RF_TECH_PARAMU));
switch (p_param->mode)
{
case NCI_DISCOVERY_TYPE_POLL_A:
case NCI_DISCOVERY_TYPE_POLL_A_ACTIVE:
p_pa = &p_param->param.pa;
/*
SENS_RES Response 2 bytes Defined in [DIGPROT] Available after Technology Detection
NFCID1 length 1 byte Length of NFCID1 Available after Collision Resolution
NFCID1 4, 7, or 10 bytes Defined in [DIGPROT]Available after Collision Resolution
SEL_RES Response 1 byte Defined in [DIGPROT]Available after Collision Resolution
HRx Length 1 Octets Length of HRx Parameters collected from the response to the T1T RID command.
HRx 0 or 2 Octets If present, the first byte SHALL contain HR0 and the second byte SHALL contain HR1 as defined in [DIGITAL].
*/
STREAM_TO_ARRAY (p_pa->sens_res, p, 2);
p_pa->nfcid1_len = *p++;
if (p_pa->nfcid1_len > NCI_NFCID1_MAX_LEN)
p_pa->nfcid1_len = NCI_NFCID1_MAX_LEN;
STREAM_TO_ARRAY (p_pa->nfcid1, p, p_pa->nfcid1_len);
u8 = *p++;
if (u8)
p_pa->sel_rsp = *p++;
if (len == (7 + p_pa->nfcid1_len + u8)) /* 2(sens_res) + 1(len) + p_pa->nfcid1_len + 1(len) + u8 + hr (1:len + 2) */
{
p_pa->hr_len = *p++;
if (p_pa->hr_len == NCI_T1T_HR_LEN)
{
p_pa->hr[0] = *p++;
p_pa->hr[1] = *p;
}
}
break;
case NCI_DISCOVERY_TYPE_POLL_B:
/*
SENSB_RES Response length (n) 1 byte Length of SENSB_RES Response (Byte 2 - Byte 12 or 13)Available after Technology Detection
SENSB_RES Response Byte 2 - Byte 12 or 13 11 or 12 bytes Defined in [DIGPROT] Available after Technology Detection
*/
p_pb = &p_param->param.pb;
p_pb->sensb_res_len = *p++;
if (p_pb->sensb_res_len > NCI_MAX_SENSB_RES_LEN)
p_pb->sensb_res_len = NCI_MAX_SENSB_RES_LEN;
STREAM_TO_ARRAY (p_pb->sensb_res, p, p_pb->sensb_res_len);
memcpy (p_pb->nfcid0, p_pb->sensb_res, NFC_NFCID0_MAX_LEN);
break;
case NCI_DISCOVERY_TYPE_POLL_F:
case NCI_DISCOVERY_TYPE_POLL_F_ACTIVE:
/*
Bit Rate 1 byte 1 212 kbps/2 424 kbps/0 and 3 to 255 RFU
SENSF_RES Response length.(n) 1 byte Length of SENSF_RES (Byte 2 - Byte 17 or 19).Available after Technology Detection
SENSF_RES Response Byte 2 - Byte 17 or 19 n bytes Defined in [DIGPROT] Available after Technology Detection
*/
p_pf = &p_param->param.pf;
p_pf->bit_rate = *p++;
p_pf->sensf_res_len = *p++;
if (p_pf->sensf_res_len > NCI_MAX_SENSF_RES_LEN)
p_pf->sensf_res_len = NCI_MAX_SENSF_RES_LEN;
STREAM_TO_ARRAY (p_pf->sensf_res, p, p_pf->sensf_res_len);
memcpy (p_pf->nfcid2, p_pf->sensf_res, NCI_NFCID2_LEN);
p_pf->mrti_check = p_pf->sensf_res[NCI_MRTI_CHECK_INDEX];
p_pf->mrti_update = p_pf->sensf_res[NCI_MRTI_UPDATE_INDEX];
break;
case NCI_DISCOVERY_TYPE_LISTEN_F:
case NCI_DISCOVERY_TYPE_LISTEN_F_ACTIVE:
p_lf = &p_param->param.lf;
u8 = *p++;
if (u8)
{
STREAM_TO_ARRAY (p_lf->nfcid2, p, NCI_NFCID2_LEN);
}
break;
case NCI_DISCOVERY_TYPE_POLL_ISO15693:
p_i93 = &p_param->param.pi93;
p_i93->flag = *p++;
p_i93->dsfid = *p++;
STREAM_TO_ARRAY (p_i93->uid, p, NFC_ISO15693_UID_LEN);
break;
case NCI_DISCOVERY_TYPE_POLL_KOVIO:
p_param->param.pk.uid_len = *p++;
if (p_param->param.pk.uid_len > NFC_KOVIO_MAX_LEN)
{
NFC_TRACE_ERROR2( "Kovio UID len:0x%x exceeds max(0x%x)", p_param->param.pk.uid_len, NFC_KOVIO_MAX_LEN);
p_param->param.pk.uid_len = NFC_KOVIO_MAX_LEN;
}
STREAM_TO_ARRAY (p_param->param.pk.uid, p, p_param->param.pk.uid_len);
break;
}
return (p_start + len);
}
/*******************************************************************************
**
** Function nfc_ncif_proc_discover_ntf
**
** Description This function is called to process discover notification
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_discover_ntf (UINT8 *p, UINT16 plen)
{
tNFC_DISCOVER evt_data;
if (nfc_cb.p_discv_cback)
{
p += NCI_MSG_HDR_SIZE;
evt_data.status = NCI_STATUS_OK;
evt_data.result.rf_disc_id = *p++;
evt_data.result.protocol = *p++;
/* fill in tNFC_RESULT_DEVT */
evt_data.result.rf_tech_param.mode = *p++;
p = nfc_ncif_decode_rf_params (&evt_data.result.rf_tech_param, p);
evt_data.result.more = *p++;
(*nfc_cb.p_discv_cback) (NFC_RESULT_DEVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_activate
**
** Description This function is called to process de-activate
** response and notification
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_activate (UINT8 *p, UINT8 len)
{
tNFC_DISCOVER evt_data;
tNFC_INTF_PARAMS *p_intf = &evt_data.activate.intf_param;
tNFC_INTF_PA_ISO_DEP *p_pa_iso;
tNFC_INTF_LB_ISO_DEP *p_lb_iso;
tNFC_INTF_PB_ISO_DEP *p_pb_iso;
#if (NFC_RW_ONLY == FALSE)
tNFC_INTF_PA_NFC_DEP *p_pa_nfc;
int mpl_idx = 0;
UINT8 gb_idx = 0, mpl;
#endif
UINT8 t0;
tNCI_DISCOVERY_TYPE mode;
tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID];
UINT8 *pp, len_act;
UINT8 buff_size, num_buff;
tNFC_RF_PA_PARAMS *p_pa;
nfc_set_state (NFC_STATE_OPEN);
memset (p_intf, 0, sizeof (tNFC_INTF_PARAMS));
evt_data.activate.rf_disc_id = *p++;
p_intf->type = *p++;
evt_data.activate.protocol = *p++;
if (evt_data.activate.protocol == NCI_PROTOCOL_18092_ACTIVE)
evt_data.activate.protocol = NCI_PROTOCOL_NFC_DEP;
evt_data.activate.rf_tech_param.mode = *p++;
buff_size = *p++;
num_buff = *p++;
/* fill in tNFC_activate_DEVT */
p = nfc_ncif_decode_rf_params (&evt_data.activate.rf_tech_param, p);
evt_data.activate.data_mode = *p++;
evt_data.activate.tx_bitrate = *p++;
evt_data.activate.rx_bitrate = *p++;
mode = evt_data.activate.rf_tech_param.mode;
len_act = *p++;
NFC_TRACE_DEBUG3 ("nfc_ncif_proc_activate:%d %d, mode:0x%02x", len, len_act, mode);
/* just in case the interface reports activation parameters not defined in the NCI spec */
p_intf->intf_param.frame.param_len = len_act;
if (p_intf->intf_param.frame.param_len > NFC_MAX_RAW_PARAMS)
p_intf->intf_param.frame.param_len = NFC_MAX_RAW_PARAMS;
pp = p;
STREAM_TO_ARRAY (p_intf->intf_param.frame.param, pp, p_intf->intf_param.frame.param_len);
if (evt_data.activate.intf_param.type == NCI_INTERFACE_ISO_DEP)
{
/* Make max payload of NCI aligned to max payload of ISO-DEP for better performance */
if (buff_size > NCI_ISO_DEP_MAX_INFO)
buff_size = NCI_ISO_DEP_MAX_INFO;
switch (mode)
{
case NCI_DISCOVERY_TYPE_POLL_A:
p_pa_iso = &p_intf->intf_param.pa_iso;
p_pa_iso->ats_res_len = *p++;
if (p_pa_iso->ats_res_len == 0)
break;
if (p_pa_iso->ats_res_len > NFC_MAX_ATS_LEN)
p_pa_iso->ats_res_len = NFC_MAX_ATS_LEN;
STREAM_TO_ARRAY (p_pa_iso->ats_res, p, p_pa_iso->ats_res_len);
pp = &p_pa_iso->ats_res[NCI_ATS_T0_INDEX];
t0 = p_pa_iso->ats_res[NCI_ATS_T0_INDEX];
pp++; /* T0 */
if (t0 & NCI_ATS_TA_MASK)
pp++; /* TA */
if (t0 & NCI_ATS_TB_MASK)
{
/* FWI (Frame Waiting time Integer) & SPGI (Start-up Frame Guard time Integer) */
p_pa_iso->fwi = (((*pp) >> 4) & 0x0F);
p_pa_iso->sfgi = ((*pp) & 0x0F);
pp++; /* TB */
}
if (t0 & NCI_ATS_TC_MASK)
{
p_pa_iso->nad_used = ((*pp) & 0x01);
pp++; /* TC */
}
p_pa_iso->his_byte_len = (UINT8) (p_pa_iso->ats_res_len - (pp - p_pa_iso->ats_res));
memcpy (p_pa_iso->his_byte, pp, p_pa_iso->his_byte_len);
break;
case NCI_DISCOVERY_TYPE_LISTEN_A:
p_intf->intf_param.la_iso.rats = *p++;
break;
case NCI_DISCOVERY_TYPE_POLL_B:
/* ATTRIB RSP
Byte 1 Byte 2 ~ 2+n-1
MBLI/DID Higher layer - Response
*/
p_pb_iso = &p_intf->intf_param.pb_iso;
p_pb_iso->attrib_res_len = *p++;
if (p_pb_iso->attrib_res_len == 0)
break;
if (p_pb_iso->attrib_res_len > NFC_MAX_ATTRIB_LEN)
p_pb_iso->attrib_res_len = NFC_MAX_ATTRIB_LEN;
STREAM_TO_ARRAY (p_pb_iso->attrib_res, p, p_pb_iso->attrib_res_len);
p_pb_iso->mbli = (p_pb_iso->attrib_res[0]) >> 4;
if (p_pb_iso->attrib_res_len > NFC_PB_ATTRIB_REQ_FIXED_BYTES)
{
p_pb_iso->hi_info_len = p_pb_iso->attrib_res_len - NFC_PB_ATTRIB_REQ_FIXED_BYTES;
if (p_pb_iso->hi_info_len > NFC_MAX_GEN_BYTES_LEN)
p_pb_iso->hi_info_len = NFC_MAX_GEN_BYTES_LEN;
memcpy (p_pb_iso->hi_info, &p_pb_iso->attrib_res[NFC_PB_ATTRIB_REQ_FIXED_BYTES], p_pb_iso->hi_info_len);
}
break;
case NCI_DISCOVERY_TYPE_LISTEN_B:
/* ATTRIB CMD
Byte 2~5 Byte 6 Byte 7 Byte 8 Byte 9 Byte 10 ~ 10+k-1
NFCID0 Param 1 Param 2 Param 3 Param 4 Higher layer - INF
*/
p_lb_iso = &p_intf->intf_param.lb_iso;
p_lb_iso->attrib_req_len = *p++;
if (p_lb_iso->attrib_req_len == 0)
break;
if (p_lb_iso->attrib_req_len > NFC_MAX_ATTRIB_LEN)
p_lb_iso->attrib_req_len = NFC_MAX_ATTRIB_LEN;
STREAM_TO_ARRAY (p_lb_iso->attrib_req, p, p_lb_iso->attrib_req_len);
memcpy (p_lb_iso->nfcid0, p_lb_iso->attrib_req, NFC_NFCID0_MAX_LEN);
if (p_lb_iso->attrib_req_len > NFC_LB_ATTRIB_REQ_FIXED_BYTES)
{
p_lb_iso->hi_info_len = p_lb_iso->attrib_req_len - NFC_LB_ATTRIB_REQ_FIXED_BYTES;
if (p_lb_iso->hi_info_len > NFC_MAX_GEN_BYTES_LEN)
p_lb_iso->hi_info_len = NFC_MAX_GEN_BYTES_LEN;
memcpy (p_lb_iso->hi_info, &p_lb_iso->attrib_req[NFC_LB_ATTRIB_REQ_FIXED_BYTES], p_lb_iso->hi_info_len);
}
break;
}
}
#if (NFC_RW_ONLY == FALSE)
else if (evt_data.activate.intf_param.type == NCI_INTERFACE_NFC_DEP)
{
/* Make max payload of NCI aligned to max payload of NFC-DEP for better performance */
if (buff_size > NCI_NFC_DEP_MAX_DATA)
buff_size = NCI_NFC_DEP_MAX_DATA;
p_pa_nfc = &p_intf->intf_param.pa_nfc;
p_pa_nfc->atr_res_len = *p++;
if (p_pa_nfc->atr_res_len > 0)
{
if (p_pa_nfc->atr_res_len > NFC_MAX_ATS_LEN)
p_pa_nfc->atr_res_len = NFC_MAX_ATS_LEN;
STREAM_TO_ARRAY (p_pa_nfc->atr_res, p, p_pa_nfc->atr_res_len);
if ( (mode == NCI_DISCOVERY_TYPE_POLL_A)
||(mode == NCI_DISCOVERY_TYPE_POLL_F)
||(mode == NCI_DISCOVERY_TYPE_POLL_A_ACTIVE)
||(mode == NCI_DISCOVERY_TYPE_POLL_F_ACTIVE) )
{
/* ATR_RES
Byte 3~12 Byte 13 Byte 14 Byte 15 Byte 16 Byte 17 Byte 18~18+n
NFCID3T DIDT BST BRT TO PPT [GT0 ... GTn] */
mpl_idx = 14;
gb_idx = NCI_P_GEN_BYTE_INDEX;
p_pa_nfc->waiting_time = p_pa_nfc->atr_res[NCI_L_NFC_DEP_TO_INDEX] & 0x0F;
}
else if ( (mode == NCI_DISCOVERY_TYPE_LISTEN_A)
||(mode == NCI_DISCOVERY_TYPE_LISTEN_F)
||(mode == NCI_DISCOVERY_TYPE_LISTEN_A_ACTIVE)
||(mode == NCI_DISCOVERY_TYPE_LISTEN_F_ACTIVE) )
{
/* ATR_REQ
Byte 3~12 Byte 13 Byte 14 Byte 15 Byte 16 Byte 17~17+n
NFCID3I DIDI BSI BRI PPI [GI0 ... GIn] */
mpl_idx = 13;
gb_idx = NCI_L_GEN_BYTE_INDEX;
}
mpl = ((p_pa_nfc->atr_res[mpl_idx]) >> 4) & 0x03;
p_pa_nfc->max_payload_size = nfc_mpl_code_to_size[mpl];
if (p_pa_nfc->atr_res_len > gb_idx)
{
p_pa_nfc->gen_bytes_len = p_pa_nfc->atr_res_len - gb_idx;
if (p_pa_nfc->gen_bytes_len > NFC_MAX_GEN_BYTES_LEN)
p_pa_nfc->gen_bytes_len = NFC_MAX_GEN_BYTES_LEN;
memcpy (p_pa_nfc->gen_bytes, &p_pa_nfc->atr_res[gb_idx], p_pa_nfc->gen_bytes_len);
}
}
}
#endif
else if ((evt_data.activate.intf_param.type == NCI_INTERFACE_FRAME) && (evt_data.activate.protocol == NCI_PROTOCOL_T1T) )
{
p_pa = &evt_data.activate.rf_tech_param.param.pa;
if ((len_act == NCI_T1T_HR_LEN) && (p_pa->hr_len == 0))
{
p_pa->hr_len = NCI_T1T_HR_LEN;
p_pa->hr[0] = *p++;
p_pa->hr[1] = *p++;
}
}
p_cb->act_protocol = evt_data.activate.protocol;
p_cb->buff_size = buff_size;
p_cb->num_buff = num_buff;
p_cb->init_credits = num_buff;
if (nfc_cb.p_discv_cback)
{
(*nfc_cb.p_discv_cback) (NFC_ACTIVATE_DEVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_deactivate
**
** Description This function is called to process de-activate
** response and notification
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_deactivate (UINT8 status, UINT8 deact_type, BOOLEAN is_ntf)
{
tNFC_DISCOVER evt_data;
tNFC_DEACTIVATE_DEVT *p_deact;
tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID];
void *p_data;
nfc_set_state (NFC_STATE_IDLE);
p_deact = &evt_data.deactivate;
p_deact->status = status;
p_deact->type = deact_type;
p_deact->is_ntf = is_ntf;
while ((p_data = GKI_dequeue (&p_cb->rx_q)) != NULL)
{
GKI_freebuf (p_data);
}
while ((p_data = GKI_dequeue (&p_cb->tx_q)) != NULL)
{
GKI_freebuf (p_data);
}
if (p_cb->p_cback)
(*p_cb->p_cback) (NFC_RF_CONN_ID, NFC_DEACTIVATE_CEVT, (tNFC_CONN *) p_deact);
if (nfc_cb.p_discv_cback)
{
(*nfc_cb.p_discv_cback) (NFC_DEACTIVATE_DEVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_ee_action
**
** Description This function is called to process NFCEE ACTION NTF
**
** Returns void
**
*******************************************************************************/
#if ((NFC_NFCEE_INCLUDED == TRUE) && (NFC_RW_ONLY == FALSE))
void nfc_ncif_proc_ee_action (UINT8 *p, UINT16 plen)
{
tNFC_EE_ACTION_REVT evt_data;
tNFC_RESPONSE_CBACK *p_cback = nfc_cb.p_resp_cback;
UINT8 data_len, ulen, tag, *p_data;
UINT8 max_len;
if (p_cback)
{
memset (&evt_data.act_data, 0, sizeof (tNFC_ACTION_DATA));
evt_data.status = NFC_STATUS_OK;
evt_data.nfcee_id = *p++;
evt_data.act_data.trigger = *p++;
data_len = *p++;
if (plen >= 3)
plen -= 3;
if (data_len > plen)
data_len = (UINT8) plen;
switch (evt_data.act_data.trigger)
{
case NCI_EE_TRIG_7816_SELECT:
if (data_len > NFC_MAX_AID_LEN)
data_len = NFC_MAX_AID_LEN;
evt_data.act_data.param.aid.len_aid = data_len;
STREAM_TO_ARRAY (evt_data.act_data.param.aid.aid, p, data_len);
break;
case NCI_EE_TRIG_RF_PROTOCOL:
evt_data.act_data.param.protocol = *p++;
break;
case NCI_EE_TRIG_RF_TECHNOLOGY:
evt_data.act_data.param.technology = *p++;
break;
case NCI_EE_TRIG_APP_INIT:
while (data_len > NFC_TL_SIZE)
{
data_len -= NFC_TL_SIZE;
tag = *p++;
ulen = *p++;
if (ulen > data_len)
ulen = data_len;
p_data = NULL;
max_len = ulen;
switch (tag)
{
case NCI_EE_ACT_TAG_AID: /* AID */
if (max_len > NFC_MAX_AID_LEN)
max_len = NFC_MAX_AID_LEN;
evt_data.act_data.param.app_init.len_aid = max_len;
p_data = evt_data.act_data.param.app_init.aid;
break;
case NCI_EE_ACT_TAG_DATA: /* hex data for app */
if (max_len > NFC_MAX_APP_DATA_LEN)
max_len = NFC_MAX_APP_DATA_LEN;
evt_data.act_data.param.app_init.len_data = max_len;
p_data = evt_data.act_data.param.app_init.data;
break;
}
if (p_data)
{
STREAM_TO_ARRAY (p_data, p, max_len);
}
data_len -= ulen;
}
break;
}
(*p_cback) (NFC_EE_ACTION_REVT, (tNFC_RESPONSE *) &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_ee_discover_req
**
** Description This function is called to process NFCEE DISCOVER REQ NTF
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_ee_discover_req (UINT8 *p, UINT16 plen)
{
tNFC_RESPONSE_CBACK *p_cback = nfc_cb.p_resp_cback;
tNFC_EE_DISCOVER_REQ_REVT ee_disc_req;
tNFC_EE_DISCOVER_INFO *p_info;
UINT8 u8;
NFC_TRACE_DEBUG2 ("nfc_ncif_proc_ee_discover_req %d len:%d", *p, plen);
if (p_cback)
{
u8 = *p;
ee_disc_req.status = NFC_STATUS_OK;
ee_disc_req.num_info = *p++;
p_info = ee_disc_req.info;
if (plen)
plen--;
while ((u8 > 0) && (plen >= NFC_EE_DISCOVER_ENTRY_LEN))
{
p_info->op = *p++; /* T */
if (*p != NFC_EE_DISCOVER_INFO_LEN)/* L */
{
NFC_TRACE_DEBUG1 ("bad entry len:%d", *p );
return;
}
p++;
/* V */
p_info->nfcee_id = *p++;
p_info->tech_n_mode = *p++;
p_info->protocol = *p++;
u8--;
plen -=NFC_EE_DISCOVER_ENTRY_LEN;
p_info++;
}
(*p_cback) (NFC_EE_DISCOVER_REQ_REVT, (tNFC_RESPONSE *) &ee_disc_req);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_get_routing
**
** Description This function is called to process get routing notification
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_get_routing (UINT8 *p, UINT8 len)
{
tNFC_GET_ROUTING_REVT evt_data;
UINT8 more, num_entries, xx, yy, *pn, tl;
tNFC_STATUS status = NFC_STATUS_CONTINUE;
if (nfc_cb.p_resp_cback)
{
more = *p++;
num_entries = *p++;
for (xx = 0; xx < num_entries; xx++)
{
if ((more == FALSE) && (xx == (num_entries - 1)))
status = NFC_STATUS_OK;
evt_data.status = (tNFC_STATUS) status;
evt_data.nfcee_id = *p++;
evt_data.num_tlvs = *p++;
evt_data.tlv_size = 0;
pn = evt_data.param_tlvs;
for (yy = 0; yy < evt_data.num_tlvs; yy++)
{
tl = *(p+1);
tl += NFC_TL_SIZE;
STREAM_TO_ARRAY (pn, p, tl);
evt_data.tlv_size += tl;
pn += tl;
}
(*nfc_cb.p_resp_cback) (NFC_GET_ROUTING_REVT, (tNFC_RESPONSE *) &evt_data);
}
}
}
#endif
/*******************************************************************************
**
** Function nfc_ncif_proc_conn_create_rsp
**
** Description This function is called to process connection create
** response
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_conn_create_rsp (UINT8 *p, UINT16 plen, UINT8 dest_type)
{
tNFC_CONN_CB * p_cb;
tNFC_STATUS status;
tNFC_CONN_CBACK *p_cback;
tNFC_CONN evt_data;
UINT8 conn_id;
/* find the pending connection control block */
p_cb = nfc_find_conn_cb_by_conn_id (NFC_PEND_CONN_ID);
if (p_cb)
{
p += NCI_MSG_HDR_SIZE;
status = *p++;
p_cb->buff_size = *p++;
p_cb->num_buff = p_cb->init_credits = *p++;
conn_id = *p++;
evt_data.conn_create.status = status;
evt_data.conn_create.dest_type = dest_type;
evt_data.conn_create.id = p_cb->id;
evt_data.conn_create.buff_size = p_cb->buff_size;
evt_data.conn_create.num_buffs = p_cb->num_buff;
p_cback = p_cb->p_cback;
if (status == NCI_STATUS_OK)
{
nfc_set_conn_id (p_cb, conn_id);
}
else
{
nfc_free_conn_cb (p_cb);
}
if (p_cback)
(*p_cback) (conn_id, NFC_CONN_CREATE_CEVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_report_conn_close_evt
**
** Description This function is called to report connection close event
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_report_conn_close_evt (UINT8 conn_id, tNFC_STATUS status)
{
tNFC_CONN evt_data;
tNFC_CONN_CBACK *p_cback;
tNFC_CONN_CB *p_cb;
p_cb = nfc_find_conn_cb_by_conn_id (conn_id);
if (p_cb)
{
p_cback = p_cb->p_cback;
nfc_free_conn_cb (p_cb);
evt_data.status = status;
if (p_cback)
(*p_cback) (conn_id, NFC_CONN_CLOSE_CEVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_reset_rsp
**
** Description This function is called to process reset response/notification
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_reset_rsp (UINT8 *p, BOOLEAN is_ntf)
{
UINT8 status = *p++;
if (is_ntf)
{
NFC_TRACE_ERROR1 ("reset notification!!:0x%x ", status);
/* clean up, if the state is OPEN
* FW does not report reset ntf right now */
if (nfc_cb.nfc_state == NFC_STATE_OPEN)
{
/*if any conn_cb is connected, close it.
if any pending outgoing packets are dropped.*/
nfc_reset_all_conn_cbs ();
}
status = NCI_STATUS_OK;
}
if (nfc_cb.flags & (NFC_FL_RESTARTING|NFC_FL_POWER_CYCLE_NFCC))
{
nfc_reset_all_conn_cbs ();
}
if (status == NCI_STATUS_OK)
{
if ((*p) != NCI_VERSION)
{
NFC_TRACE_DEBUG2 ("NCI version mismatch!!:0x%02x != 0x%02x ", NCI_VERSION, *p);
if ((*p) < NCI_VERSION_0_F)
{
NFC_TRACE_ERROR0 ("NFCC version is too old");
status = NCI_STATUS_FAILED;
}
}
}
if (status == NCI_STATUS_OK)
{
nci_snd_core_init ();
}
else
{
NFC_TRACE_ERROR0 ("Failed to reset NFCC");
nfc_enabled (status, NULL);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_init_rsp
**
** Description This function is called to process init response
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_init_rsp (BT_HDR *p_msg)
{
UINT8 *p, status;
tNFC_CONN_CB * p_cb = &nfc_cb.conn_cb[NFC_RF_CONN_ID];
p = (UINT8 *) (p_msg + 1) + p_msg->offset;
/* handle init params in nfc_enabled */
status = *(p + NCI_MSG_HDR_SIZE);
if (status == NCI_STATUS_OK)
{
p_cb->id = NFC_RF_CONN_ID;
p_cb->act_protocol = NCI_PROTOCOL_UNKNOWN;
nfc_set_state (NFC_STATE_W4_POST_INIT_CPLT);
nfc_cb.p_nci_init_rsp = p_msg;
nfc_cb.p_hal->core_initialized (p);
}
else
{
nfc_enabled (status, NULL);
GKI_freebuf (p_msg);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_get_config_rsp
**
** Description This function is called to process get config response
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_get_config_rsp (BT_HDR *p_evt)
{
UINT8 *p;
tNFC_RESPONSE_CBACK *p_cback = nfc_cb.p_resp_cback;
tNFC_RESPONSE evt_data;
p_evt->offset += NCI_MSG_HDR_SIZE;
p_evt->len -= NCI_MSG_HDR_SIZE;
if (p_cback)
{
p = (UINT8 *) (p_evt + 1) + p_evt->offset;
evt_data.get_config.status = *p++;
evt_data.get_config.tlv_size = p_evt->len;
evt_data.get_config.p_param_tlvs = p;
(*p_cback) (NFC_GET_CONFIG_REVT, &evt_data);
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_t3t_polling_ntf
**
** Description Handle NCI_MSG_RF_T3T_POLLING NTF
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_t3t_polling_ntf (UINT8 *p, UINT16 plen)
{
UINT8 status;
UINT8 num_responses;
/* Pass result to RW_T3T for processing */
STREAM_TO_UINT8 (status, p);
STREAM_TO_UINT8 (num_responses, p);
plen-=NFC_TL_SIZE;
rw_t3t_handle_nci_poll_ntf (status, num_responses, (UINT8) plen, p);
}
/*******************************************************************************
**
** Function nfc_data_event
**
** Description Report Data event on the given connection control block
**
** Returns void
**
*******************************************************************************/
void nfc_data_event (tNFC_CONN_CB * p_cb)
{
BT_HDR *p_evt;
tNFC_DATA_CEVT data_cevt;
UINT8 *p;
if (p_cb->p_cback)
{
while ((p_evt = (BT_HDR *)GKI_getfirst (&p_cb->rx_q)) != NULL)
{
if (p_evt->layer_specific & NFC_RAS_FRAGMENTED)
{
break;
}
p_evt = (BT_HDR *) GKI_dequeue (&p_cb->rx_q);
/* report data event */
p_evt->offset += NCI_MSG_HDR_SIZE;
p_evt->len -= NCI_MSG_HDR_SIZE;
if (p_evt->layer_specific)
data_cevt.status = NFC_STATUS_BAD_LENGTH;
else
data_cevt.status = NFC_STATUS_OK;
data_cevt.p_data = p_evt;
/* adjust payload, if needed */
if (p_cb->conn_id == NFC_RF_CONN_ID)
{
/* if NCI_PROTOCOL_T1T/NCI_PROTOCOL_T2T/NCI_PROTOCOL_T3T, the status byte needs to be removed
*/
if ((p_cb->act_protocol >= NCI_PROTOCOL_T1T) && (p_cb->act_protocol <= NCI_PROTOCOL_T3T))
{
p_evt->len--;
p = (UINT8 *) (p_evt + 1);
data_cevt.status = *(p + p_evt->offset + p_evt->len);
}
}
(*p_cb->p_cback) (p_cb->conn_id, NFC_DATA_CEVT, (tNFC_CONN *) &data_cevt);
p_evt = NULL;
}
}
}
/*******************************************************************************
**
** Function nfc_ncif_proc_data
**
** Description Find the connection control block associated with the data
** packet. Assemble the data packet, if needed.
** Report the Data event.
**
** Returns void
**
*******************************************************************************/
void nfc_ncif_proc_data (BT_HDR *p_msg)
{
UINT8 *pp, cid;
tNFC_CONN_CB * p_cb;
UINT8 pbf;
BT_HDR *p_last;
UINT8 *ps, *pd;
UINT16 size;
BT_HDR *p_max = NULL;
UINT16 len;
UINT16 error_mask = 0;
pp = (UINT8 *) (p_msg+1) + p_msg->offset;
NFC_TRACE_DEBUG3 ("nfc_ncif_proc_data 0x%02x%02x%02x", pp[0], pp[1], pp[2]);
NCI_DATA_PRS_HDR (pp, pbf, cid, len);
p_cb = nfc_find_conn_cb_by_conn_id (cid);
if (p_cb && (p_msg->len >= NCI_DATA_HDR_SIZE))
{
NFC_TRACE_DEBUG1 ("nfc_ncif_proc_data len:%d", len);
if (len > 0)
{
p_msg->layer_specific = 0;
if (pbf)
p_msg->layer_specific = NFC_RAS_FRAGMENTED;
p_last = (BT_HDR *)GKI_getlast (&p_cb->rx_q);
if (p_last && (p_last->layer_specific & NFC_RAS_FRAGMENTED))
{
/* last data buffer is not last fragment, append this new packet to the last */
size = GKI_get_buf_size(p_last);
if (size < (BT_HDR_SIZE + p_last->len + p_last->offset + len))
{
/* the current size of p_last is not big enough to hold the new fragment, p_msg */
if (size != GKI_MAX_BUF_SIZE)
{
/* try the biggest GKI pool */
p_max = (BT_HDR *)GKI_getpoolbuf (GKI_MAX_BUF_SIZE_POOL_ID);
if (p_max)
{
/* copy the content of last buffer to the new buffer */
memcpy(p_max, p_last, BT_HDR_SIZE);
pd = (UINT8 *)(p_max + 1) + p_max->offset;
ps = (UINT8 *)(p_last + 1) + p_last->offset;
memcpy(pd, ps, p_last->len);
/* place the new buffer in the queue instead */
GKI_remove_from_queue (&p_cb->rx_q, p_last);
GKI_freebuf (p_last);
GKI_enqueue (&p_cb->rx_q, p_max);
p_last = p_max;
}
}
if (p_max == NULL)
{
p_last->layer_specific |= NFC_RAS_TOO_BIG;
NFC_TRACE_ERROR1 ("nci_reassemble_msg buffer overrun(%d)!!", len);
}
}
ps = (UINT8 *)(p_msg + 1) + p_msg->offset + NCI_MSG_HDR_SIZE;
len = p_msg->len - NCI_MSG_HDR_SIZE;
if ((p_last->layer_specific & NFC_RAS_TOO_BIG) == 0)
{
pd = (UINT8 *)(p_last + 1) + p_last->offset + p_last->len;
memcpy(pd, ps, len);
p_last->len += len;
/* do not need to update pbf and len in NCI header.
* They are stripped off at NFC_DATA_CEVT and len may exceed 255 */
NFC_TRACE_DEBUG1 ("nfc_ncif_proc_data len:%d", p_last->len);
}
error_mask = (p_last->layer_specific & NFC_RAS_TOO_BIG);
p_last->layer_specific = (p_msg->layer_specific | error_mask);
GKI_freebuf (p_msg);
#ifdef DISP_NCI
if ((p_last->layer_specific & NFC_RAS_FRAGMENTED) == 0)
{
/* this packet was reassembled. display the complete packet */
DISP_NCI ((UINT8 *)(p_last + 1) + p_last->offset, p_last->len, TRUE);
}
#endif
}
else
{
/* if this is the first fragment on RF link */
if ( (p_msg->layer_specific & NFC_RAS_FRAGMENTED)
&&(p_cb->conn_id == NFC_RF_CONN_ID)
&&(p_cb->p_cback) )
{
/* Indicate upper layer that local device started receiving data */
(*p_cb->p_cback) (p_cb->conn_id, NFC_DATA_START_CEVT, NULL);
}
/* enqueue the new buffer to the rx queue */
GKI_enqueue (&p_cb->rx_q, p_msg);
}
nfc_data_event (p_cb);
return;
}
/* else an empty data packet*/
}
GKI_freebuf (p_msg);
}
#endif /* NFC_INCLUDED == TRUE*/