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 "gki.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 if (avc_type == AVRC_CMD_CTRL)
63 result=TRUE;
64 break;
65
66 case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
67 if (avc_type == AVRC_CMD_NOTIF)
68 result=TRUE;
69 break;
70 }
71 }
72 else /* response msg */
73 {
74 if (avc_type >= AVRC_RSP_NOT_IMPL &&
75 avc_type <= AVRC_RSP_INTERIM )
76 result=TRUE;
77 }
78
79 return result;
80 }
81
82 /*******************************************************************************
83 **
84 ** Function avrc_is_valid_player_attrib_value
85 **
86 ** Description Check if the given attrib value is valid for its attribute
87 **
88 ** Returns returns TRUE if it is valid
89 **
90 *******************************************************************************/
avrc_is_valid_player_attrib_value(UINT8 attrib,UINT8 value)91 BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value)
92 {
93 BOOLEAN result=FALSE;
94
95 switch(attrib)
96 {
97 case AVRC_PLAYER_SETTING_EQUALIZER:
98 if ((value > 0) &&
99 (value <= AVRC_PLAYER_VAL_ON))
100 result=TRUE;
101 break;
102
103 case AVRC_PLAYER_SETTING_REPEAT:
104 if ((value > 0) &&
105 (value <= AVRC_PLAYER_VAL_GROUP_REPEAT))
106 result=TRUE;
107 break;
108
109 case AVRC_PLAYER_SETTING_SHUFFLE:
110 case AVRC_PLAYER_SETTING_SCAN:
111 if ((value > 0) &&
112 (value <= AVRC_PLAYER_VAL_GROUP_SHUFFLE))
113 result=TRUE;
114 break;
115 }
116
117 if (attrib >= AVRC_PLAYER_SETTING_LOW_MENU_EXT)
118 result = TRUE;
119
120 if (!result)
121 AVRC_TRACE_ERROR(
122 "avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!",
123 attrib, value);
124
125 return result;
126 }
127
128 /*******************************************************************************
129 **
130 ** Function AVRC_IsValidPlayerAttr
131 **
132 ** Description Check if the given attrib value is a valid one
133 **
134 ** Returns returns TRUE if it is valid
135 **
136 *******************************************************************************/
AVRC_IsValidPlayerAttr(UINT8 attr)137 BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr)
138 {
139 BOOLEAN result=FALSE;
140
141 if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) ||
142 (attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT) )
143 {
144 result = TRUE;
145 }
146
147 return result;
148 }
149
150
151
152 /*******************************************************************************
153 **
154 ** Function avrc_pars_pass_thru
155 **
156 ** Description This function parses the pass thru commands defined by
157 ** Bluetooth SIG
158 **
159 ** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
160 ** Otherwise, the error code defined by AVRCP 1.4
161 **
162 *******************************************************************************/
avrc_pars_pass_thru(tAVRC_MSG_PASS * p_msg,UINT16 * p_vendor_unique_id)163 tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id)
164 {
165 UINT8 *p_data;
166 UINT32 co_id;
167 UINT16 id;
168 tAVRC_STS status = AVRC_STS_BAD_CMD;
169
170 if (p_msg->op_id == AVRC_ID_VENDOR && p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN)
171 {
172 p_data = p_msg->p_pass_data;
173 AVRC_BE_STREAM_TO_CO_ID (co_id, p_data);
174 if (co_id == AVRC_CO_METADATA)
175 {
176 BE_STREAM_TO_UINT16 (id, p_data);
177 if (AVRC_IS_VALID_GROUP(id))
178 {
179 *p_vendor_unique_id = id;
180 status = AVRC_STS_NO_ERROR;
181 }
182 }
183 }
184 return status;
185 }
186
187 /*******************************************************************************
188 **
189 ** Function avrc_opcode_from_pdu
190 **
191 ** Description This function returns the opcode of the given pdu
192 **
193 ** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
194 **
195 *******************************************************************************/
avrc_opcode_from_pdu(UINT8 pdu)196 UINT8 avrc_opcode_from_pdu(UINT8 pdu)
197 {
198 UINT8 opcode = 0;
199
200 switch (pdu)
201 {
202 case AVRC_PDU_NEXT_GROUP:
203 case AVRC_PDU_PREV_GROUP: /* pass thru */
204 opcode = AVRC_OP_PASS_THRU;
205 break;
206
207 default: /* vendor */
208 opcode = AVRC_OP_VENDOR;
209 break;
210 }
211
212 return opcode;
213 }
214
215 /*******************************************************************************
216 **
217 ** Function avrc_is_valid_opcode
218 **
219 ** Description This function returns the opcode of the given pdu
220 **
221 ** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
222 **
223 *******************************************************************************/
avrc_is_valid_opcode(UINT8 opcode)224 BOOLEAN avrc_is_valid_opcode(UINT8 opcode)
225 {
226 BOOLEAN is_valid = FALSE;
227 switch (opcode)
228 {
229 case AVRC_OP_BROWSE:
230 case AVRC_OP_PASS_THRU:
231 case AVRC_OP_VENDOR:
232 is_valid = TRUE;
233 break;
234 }
235 return is_valid;
236 }
237
238 #endif /* (AVRC_METADATA_INCLUDED == TRUE) */
239
240