1 /******************************************************************************
2 *
3 * Copyright (C) 2003-2013 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 #include <string.h>
19
20 #include "bt_common.h"
21 #include "avrc_api.h"
22 #include "avrc_int.h"
23
24
25 #if (AVRC_METADATA_INCLUDED == TRUE)
26
27 /**************************************************************************
28 **
29 ** Function AVRC_IsValidAvcType
30 **
31 ** Description Check if correct AVC type is specified
32 **
33 ** Returns returns TRUE if it is valid
34 **
35 **
36 *******************************************************************************/
AVRC_IsValidAvcType(UINT8 pdu_id,UINT8 avc_type)37 BOOLEAN AVRC_IsValidAvcType(UINT8 pdu_id, UINT8 avc_type)
38 {
39 BOOLEAN result=FALSE;
40
41 if (avc_type < AVRC_RSP_NOT_IMPL) /* command msg */
42 {
43 switch (pdu_id)
44 {
45 case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
46 case AVRC_PDU_LIST_PLAYER_APP_ATTR: /* 0x11 */
47 case AVRC_PDU_LIST_PLAYER_APP_VALUES: /* 0x12 */
48 case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */
49 case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */
50 case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT: /* 0x16 */
51 case AVRC_PDU_GET_ELEMENT_ATTR: /* 0x20 */
52 case AVRC_PDU_GET_PLAY_STATUS: /* 0x30 */
53 if (avc_type == AVRC_CMD_STATUS)
54 result=TRUE;
55 break;
56
57 case AVRC_PDU_SET_PLAYER_APP_VALUE: /* 0x14 */
58 case AVRC_PDU_INFORM_DISPLAY_CHARSET: /* 0x17 */
59 case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT: /* 0x18 */
60 case AVRC_PDU_REQUEST_CONTINUATION_RSP: /* 0x40 */
61 case AVRC_PDU_ABORT_CONTINUATION_RSP: /* 0x41 */
62 case AVRC_PDU_SET_ADDRESSED_PLAYER:
63 case AVRC_PDU_PLAY_ITEM:
64 case AVRC_PDU_SET_ABSOLUTE_VOLUME:
65 if (avc_type == AVRC_CMD_CTRL)
66 result=TRUE;
67 break;
68
69 case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
70 if (avc_type == AVRC_CMD_NOTIF)
71 result=TRUE;
72 break;
73 }
74 }
75 else /* response msg */
76 {
77 if (avc_type >= AVRC_RSP_NOT_IMPL &&
78 avc_type <= AVRC_RSP_INTERIM )
79 result=TRUE;
80 }
81
82 return result;
83 }
84
85 /*******************************************************************************
86 **
87 ** Function avrc_is_valid_player_attrib_value
88 **
89 ** Description Check if the given attrib value is valid for its attribute
90 **
91 ** Returns returns TRUE if it is valid
92 **
93 *******************************************************************************/
avrc_is_valid_player_attrib_value(UINT8 attrib,UINT8 value)94 BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value)
95 {
96 BOOLEAN result=FALSE;
97
98 switch(attrib)
99 {
100 case AVRC_PLAYER_SETTING_EQUALIZER:
101 if ((value > 0) &&
102 (value <= AVRC_PLAYER_VAL_ON))
103 result=TRUE;
104 break;
105
106 case AVRC_PLAYER_SETTING_REPEAT:
107 if ((value > 0) &&
108 (value <= AVRC_PLAYER_VAL_GROUP_REPEAT))
109 result=TRUE;
110 break;
111
112 case AVRC_PLAYER_SETTING_SHUFFLE:
113 case AVRC_PLAYER_SETTING_SCAN:
114 if ((value > 0) &&
115 (value <= AVRC_PLAYER_VAL_GROUP_SHUFFLE))
116 result=TRUE;
117 break;
118 }
119
120 if (attrib >= AVRC_PLAYER_SETTING_LOW_MENU_EXT)
121 result = TRUE;
122
123 if (!result)
124 AVRC_TRACE_ERROR(
125 "avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!",
126 attrib, value);
127
128 return result;
129 }
130
131 /*******************************************************************************
132 **
133 ** Function AVRC_IsValidPlayerAttr
134 **
135 ** Description Check if the given attrib value is a valid one
136 **
137 ** Returns returns TRUE if it is valid
138 **
139 *******************************************************************************/
AVRC_IsValidPlayerAttr(UINT8 attr)140 BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr)
141 {
142 BOOLEAN result=FALSE;
143
144 if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) ||
145 (attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT) )
146 {
147 result = TRUE;
148 }
149
150 return result;
151 }
152
153
154
155 /*******************************************************************************
156 **
157 ** Function avrc_pars_pass_thru
158 **
159 ** Description This function parses the pass thru commands defined by
160 ** Bluetooth SIG
161 **
162 ** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
163 ** Otherwise, the error code defined by AVRCP 1.4
164 **
165 *******************************************************************************/
avrc_pars_pass_thru(tAVRC_MSG_PASS * p_msg,UINT16 * p_vendor_unique_id)166 tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id)
167 {
168 UINT8 *p_data;
169 UINT32 co_id;
170 UINT16 id;
171 tAVRC_STS status = AVRC_STS_BAD_CMD;
172
173 if (p_msg->op_id == AVRC_ID_VENDOR && p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN)
174 {
175 p_data = p_msg->p_pass_data;
176 AVRC_BE_STREAM_TO_CO_ID (co_id, p_data);
177 if (co_id == AVRC_CO_METADATA)
178 {
179 BE_STREAM_TO_UINT16 (id, p_data);
180 if (AVRC_IS_VALID_GROUP(id))
181 {
182 *p_vendor_unique_id = id;
183 status = AVRC_STS_NO_ERROR;
184 }
185 }
186 }
187 return status;
188 }
189
190 /*******************************************************************************
191 **
192 ** Function avrc_opcode_from_pdu
193 **
194 ** Description This function returns the opcode of the given pdu
195 **
196 ** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
197 **
198 *******************************************************************************/
avrc_opcode_from_pdu(UINT8 pdu)199 UINT8 avrc_opcode_from_pdu(UINT8 pdu)
200 {
201 UINT8 opcode = 0;
202
203 switch (pdu)
204 {
205 case AVRC_PDU_NEXT_GROUP:
206 case AVRC_PDU_PREV_GROUP: /* pass thru */
207 opcode = AVRC_OP_PASS_THRU;
208 break;
209
210 default: /* vendor */
211 opcode = AVRC_OP_VENDOR;
212 break;
213 }
214
215 return opcode;
216 }
217
218 /*******************************************************************************
219 **
220 ** Function avrc_is_valid_opcode
221 **
222 ** Description This function returns the opcode of the given pdu
223 **
224 ** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
225 **
226 *******************************************************************************/
avrc_is_valid_opcode(UINT8 opcode)227 BOOLEAN avrc_is_valid_opcode(UINT8 opcode)
228 {
229 BOOLEAN is_valid = FALSE;
230 switch (opcode)
231 {
232 case AVRC_OP_BROWSE:
233 case AVRC_OP_PASS_THRU:
234 case AVRC_OP_VENDOR:
235 is_valid = TRUE;
236 break;
237 }
238 return is_valid;
239 }
240
241 #endif /* (AVRC_METADATA_INCLUDED == TRUE) */
242
243