/****************************************************************************** * * Copyright (C) 1999-2014 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 #include #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); } /* XXX maco since this failure is unrecoverable, abort the 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; if (p->len) { 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)); if ( NCI_DISCOVERY_TYPE_POLL_A == p_param->mode || NCI_DISCOVERY_TYPE_POLL_A_ACTIVE == p_param->mode ) { 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; } } } else if (NCI_DISCOVERY_TYPE_POLL_B == p_param->mode) { /* 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); } else if ( NCI_DISCOVERY_TYPE_POLL_F == p_param->mode || NCI_DISCOVERY_TYPE_POLL_F_ACTIVE == p_param->mode ) { /* 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]; } else if ( NCI_DISCOVERY_TYPE_LISTEN_F == p_param->mode || NCI_DISCOVERY_TYPE_LISTEN_F_ACTIVE == p_param->mode ) { p_lf = &p_param->param.lf; u8 = *p++; if (u8) { STREAM_TO_ARRAY (p_lf->nfcid2, p, NCI_NFCID2_LEN); } } else if (NCI_DISCOVERY_TYPE_POLL_ISO15693 == p_param->mode) { 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); } else if (NCI_DISCOVERY_TYPE_POLL_KOVIO == p_param->mode) { 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); } 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_ERROR2 ("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_msg->len - p_msg->offset, 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) { /* Not the last fragment */ if (!(p_evt->layer_specific & NFC_RAS_TOO_BIG)) { /* buffer can hold more */ if ( (p_cb->conn_id != NFC_RF_CONN_ID) ||(nfc_cb.reassembly) ) { /* If not rf connection or If rf connection and reassembly requested, * try to Reassemble next packet */ 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_CONTINUE; else { nfc_cb.reassembly = TRUE; 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; 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); 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) { /* Biggest GKI Pool not available (or) * Biggest available GKI Pool is not big enough to hold the new fragment, p_msg */ p_last->layer_specific |= NFC_RAS_TOO_BIG; } } 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)) { 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); p_last->layer_specific = p_msg->layer_specific; GKI_freebuf (p_msg); #ifdef DISP_NCI if (!(p_last->layer_specific & NFC_RAS_FRAGMENTED)) { /* this packet was reassembled. display the complete packet */ DISP_NCI ((UINT8 *)(p_last + 1) + p_last->offset, p_last->len, TRUE); } #endif nfc_data_event (p_cb); } else { /* Not enough memory to add new buffer * Send data already in queue first with status Continue */ nfc_data_event (p_cb); /* now enqueue the new buffer to the rx queue */ GKI_enqueue (&p_cb->rx_q, p_msg); } } 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; } GKI_freebuf (p_msg); } #endif /* NFC_INCLUDED == TRUE*/