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 #include "common/bt_target.h"
20 #include "stack/avrc_api.h"
21 #include "avrc_int.h"
22
23 #if (defined(AVRC_INCLUDED) && AVRC_INCLUDED == TRUE)
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 switch (pdu_id) {
43 case AVRC_PDU_GET_CAPABILITIES: /* 0x10 */
44 case AVRC_PDU_LIST_PLAYER_APP_ATTR: /* 0x11 */
45 case AVRC_PDU_LIST_PLAYER_APP_VALUES: /* 0x12 */
46 case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE: /* 0x13 */
47 case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT: /* 0x15 */
48 case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT: /* 0x16 */
49 case AVRC_PDU_GET_ELEMENT_ATTR: /* 0x20 */
50 case AVRC_PDU_GET_PLAY_STATUS: /* 0x30 */
51 if (avc_type == AVRC_CMD_STATUS) {
52 result = TRUE;
53 }
54 break;
55
56 case AVRC_PDU_SET_PLAYER_APP_VALUE: /* 0x14 */
57 case AVRC_PDU_INFORM_DISPLAY_CHARSET: /* 0x17 */
58 case AVRC_PDU_INFORM_BATTERY_STAT_OF_CT: /* 0x18 */
59 case AVRC_PDU_REQUEST_CONTINUATION_RSP: /* 0x40 */
60 case AVRC_PDU_ABORT_CONTINUATION_RSP: /* 0x41 */
61 case AVRC_PDU_SET_ABSOLUTE_VOLUME: /* 0x50 */
62 if (avc_type == AVRC_CMD_CTRL) {
63 result = TRUE;
64 }
65 break;
66
67 case AVRC_PDU_REGISTER_NOTIFICATION: /* 0x31 */
68 if (avc_type == AVRC_CMD_NOTIF) {
69 result = TRUE;
70 }
71 break;
72 }
73 } else { /* response msg */
74 if (avc_type >= AVRC_RSP_NOT_IMPL &&
75 avc_type <= AVRC_RSP_INTERIM ) {
76 result = TRUE;
77 }
78 }
79
80 return result;
81 }
82
83 /*******************************************************************************
84 **
85 ** Function avrc_is_valid_player_attrib_value
86 **
87 ** Description Check if the given attrib value is valid for its attribute
88 **
89 ** Returns returns TRUE if it is valid
90 **
91 *******************************************************************************/
avrc_is_valid_player_attrib_value(UINT8 attrib,UINT8 value)92 BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value)
93 {
94 BOOLEAN result = FALSE;
95
96 switch (attrib) {
97 case AVRC_PLAYER_SETTING_EQUALIZER:
98 if ((value > 0) &&
99 (value <= AVRC_PLAYER_VAL_ON)) {
100 result = TRUE;
101 }
102 break;
103
104 case AVRC_PLAYER_SETTING_REPEAT:
105 if ((value > 0) &&
106 (value <= AVRC_PLAYER_VAL_GROUP_REPEAT)) {
107 result = TRUE;
108 }
109 break;
110
111 case AVRC_PLAYER_SETTING_SHUFFLE:
112 case AVRC_PLAYER_SETTING_SCAN:
113 if ((value > 0) &&
114 (value <= AVRC_PLAYER_VAL_GROUP_SHUFFLE)) {
115 result = TRUE;
116 }
117 break;
118 }
119
120 if (attrib >= AVRC_PLAYER_SETTING_LOW_MENU_EXT) {
121 result = TRUE;
122 }
123
124 if (!result) {
125 AVRC_TRACE_ERROR(
126 "avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!",
127 attrib, value);
128 }
129
130 return result;
131 }
132
133 /*******************************************************************************
134 **
135 ** Function AVRC_IsValidPlayerAttr
136 **
137 ** Description Check if the given attrib value is a valid one
138 **
139 ** Returns returns TRUE if it is valid
140 **
141 *******************************************************************************/
AVRC_IsValidPlayerAttr(UINT8 attr)142 BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr)
143 {
144 BOOLEAN result = FALSE;
145
146 if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) ||
147 (attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT) ) {
148 result = TRUE;
149 }
150
151 return result;
152 }
153
154
155
156 /*******************************************************************************
157 **
158 ** Function avrc_pars_pass_thru
159 **
160 ** Description This function parses the pass thru commands defined by
161 ** Bluetooth SIG
162 **
163 ** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully.
164 ** Otherwise, the error code defined by AVRCP 1.4
165 **
166 *******************************************************************************/
avrc_pars_pass_thru(tAVRC_MSG_PASS * p_msg,UINT16 * p_vendor_unique_id)167 tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id)
168 {
169 UINT8 *p_data;
170 UINT32 co_id;
171 UINT16 id;
172 tAVRC_STS status = AVRC_STS_BAD_CMD;
173
174 if (p_msg->op_id == AVRC_ID_VENDOR && p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN) {
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 BE_STREAM_TO_UINT16 (id, p_data);
179 if (AVRC_IS_VALID_GROUP(id)) {
180 *p_vendor_unique_id = id;
181 status = AVRC_STS_NO_ERROR;
182 }
183 }
184 }
185 return status;
186 }
187
188 /*******************************************************************************
189 **
190 ** Function avrc_opcode_from_pdu
191 **
192 ** Description This function returns the opcode of the given pdu
193 **
194 ** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE
195 **
196 *******************************************************************************/
avrc_opcode_from_pdu(UINT8 pdu)197 UINT8 avrc_opcode_from_pdu(UINT8 pdu)
198 {
199 UINT8 opcode = 0;
200
201 switch (pdu) {
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 case AVRC_OP_BROWSE:
229 case AVRC_OP_PASS_THRU:
230 case AVRC_OP_VENDOR:
231 is_valid = TRUE;
232 break;
233 }
234 return is_valid;
235 }
236
237 #endif /* (AVRC_METADATA_INCLUDED == TRUE) */
238
239 #endif /* #if (defined(AVRC_INCLUDED) && AVRC_INCLUDED == TRUE) */
240
