1 /******************************************************************************
2 *
3 * Copyright (C) 2009-2014 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19
20 /******************************************************************************
21 *
22 * This file contains functions that interface with the NFC NCI transport.
23 * On the receive side, it routes events to the appropriate handler
24 * (callback). On the transmit side, it manages the command transmission.
25 *
26 ******************************************************************************/
27 #include <string.h>
28 #include "nfc_target.h"
29 #include "bt_types.h"
30
31 #if (NFC_INCLUDED == TRUE)
32 #include "nfc_api.h"
33 #include "nci_hmsgs.h"
34 #include "ce_api.h"
35 #include "ce_int.h"
36 #include "gki.h"
37
38 tCE_CB ce_cb;
39
40 /*******************************************************************************
41 *******************************************************************************/
ce_init(void)42 void ce_init (void)
43 {
44 memset (&ce_cb, 0, sizeof (tCE_CB));
45 ce_cb.trace_level = NFC_INITIAL_TRACE_LEVEL;
46
47 /* Initialize tag-specific fields of ce control block */
48 ce_t3t_init ();
49 }
50
51 /*******************************************************************************
52 **
53 ** Function CE_SendRawFrame
54 **
55 ** Description This function sends a raw frame to the peer device.
56 **
57 ** Returns tNFC_STATUS
58 **
59 *******************************************************************************/
CE_SendRawFrame(UINT8 * p_raw_data,UINT16 data_len)60 tNFC_STATUS CE_SendRawFrame (UINT8 *p_raw_data, UINT16 data_len)
61 {
62 tNFC_STATUS status = NFC_STATUS_FAILED;
63 BT_HDR *p_data;
64 UINT8 *p;
65
66 if (ce_cb.p_cback)
67 {
68 /* a valid opcode for RW */
69 p_data = (BT_HDR *) GKI_getpoolbuf (NFC_RW_POOL_ID);
70 if (p_data)
71 {
72 p_data->offset = NCI_MSG_OFFSET_SIZE + NCI_DATA_HDR_SIZE;
73 p = (UINT8 *) (p_data + 1) + p_data->offset;
74 memcpy (p, p_raw_data, data_len);
75 p_data->len = data_len;
76 CE_TRACE_EVENT1 ("CE SENT raw frame (0x%x)", data_len);
77 status = NFC_SendData (NFC_RF_CONN_ID, p_data);
78 }
79
80 }
81 return status;
82 }
83
84 /*******************************************************************************
85 **
86 ** Function CE_SetActivatedTagType
87 **
88 ** Description This function selects the tag type for CE mode.
89 **
90 ** Returns tNFC_STATUS
91 **
92 *******************************************************************************/
CE_SetActivatedTagType(tNFC_ACTIVATE_DEVT * p_activate_params,UINT16 t3t_system_code,tCE_CBACK * p_cback)93 tNFC_STATUS CE_SetActivatedTagType (tNFC_ACTIVATE_DEVT *p_activate_params, UINT16 t3t_system_code, tCE_CBACK *p_cback)
94 {
95 tNFC_STATUS status = NFC_STATUS_FAILED;
96 tNFC_PROTOCOL protocol = p_activate_params->protocol;
97
98 CE_TRACE_API1 ("CE_SetActivatedTagType protocol:%d", protocol);
99
100 switch (protocol)
101 {
102 case NFC_PROTOCOL_T1T:
103 case NFC_PROTOCOL_T2T:
104 return NFC_STATUS_FAILED;
105
106 case NFC_PROTOCOL_T3T: /* Type3Tag - NFC-F */
107 /* store callback function before NFC_SetStaticRfCback () */
108 ce_cb.p_cback = p_cback;
109 status = ce_select_t3t (t3t_system_code, p_activate_params->rf_tech_param.param.lf.nfcid2);
110 break;
111
112 case NFC_PROTOCOL_ISO_DEP: /* ISODEP/4A,4B- NFC-A or NFC-B */
113 /* store callback function before NFC_SetStaticRfCback () */
114 ce_cb.p_cback = p_cback;
115 status = ce_select_t4t ();
116 break;
117
118 default:
119 CE_TRACE_ERROR0 ("CE_SetActivatedTagType Invalid protocol");
120 return NFC_STATUS_FAILED;
121 }
122
123 if (status != NFC_STATUS_OK)
124 {
125 NFC_SetStaticRfCback (NULL);
126 ce_cb.p_cback = NULL;
127 }
128 return status;
129 }
130
131 /*******************************************************************************
132 **
133 ** Function CE_SetTraceLevel
134 **
135 ** Description This function sets the trace level for Card Emulation mode.
136 ** If called with a value of 0xFF,
137 ** it simply returns the current trace level.
138 **
139 ** Returns The new or current trace level
140 **
141 *******************************************************************************/
CE_SetTraceLevel(UINT8 new_level)142 UINT8 CE_SetTraceLevel (UINT8 new_level)
143 {
144 if (new_level != 0xFF)
145 ce_cb.trace_level = new_level;
146
147 return (ce_cb.trace_level);
148 }
149
150 #endif /* NFC_INCLUDED == TRUE */
151