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 *******************************************************************************/ 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 *******************************************************************************/ 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 attrib <= AVRC_PLAYER_SETTING_HIGH_MENU_EXT) 119 result = TRUE; 120 121 if (!result) 122 AVRC_TRACE_ERROR2( 123 "avrc_is_valid_player_attrib_value() found not matching attrib(x%x)-value(x%x) pair!", 124 attrib, value); 125 126 return result; 127 } 128 129 /******************************************************************************* 130 ** 131 ** Function AVRC_IsValidPlayerAttr 132 ** 133 ** Description Check if the given attrib value is a valid one 134 ** 135 ** Returns returns TRUE if it is valid 136 ** 137 *******************************************************************************/ 138 BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr) 139 { 140 BOOLEAN result=FALSE; 141 142 if ( (attr >= AVRC_PLAYER_SETTING_EQUALIZER && attr <= AVRC_PLAYER_SETTING_SCAN) || 143 (attr >= AVRC_PLAYER_SETTING_LOW_MENU_EXT && attr <= AVRC_PLAYER_SETTING_HIGH_MENU_EXT) ) 144 { 145 result = TRUE; 146 } 147 148 return result; 149 } 150 151 152 153 /******************************************************************************* 154 ** 155 ** Function avrc_pars_pass_thru 156 ** 157 ** Description This function parses the pass thru commands defined by 158 ** Bluetooth SIG 159 ** 160 ** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully. 161 ** Otherwise, the error code defined by AVRCP 1.4 162 ** 163 *******************************************************************************/ 164 tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id) 165 { 166 UINT8 *p_data; 167 UINT32 co_id; 168 UINT16 id; 169 tAVRC_STS status = AVRC_STS_BAD_CMD; 170 171 if (p_msg->op_id == AVRC_ID_VENDOR && p_msg->pass_len == AVRC_PASS_THRU_GROUP_LEN) 172 { 173 p_data = p_msg->p_pass_data; 174 AVRC_BE_STREAM_TO_CO_ID (co_id, p_data); 175 if (co_id == AVRC_CO_METADATA) 176 { 177 BE_STREAM_TO_UINT16 (id, p_data); 178 if (AVRC_IS_VALID_GROUP(id)) 179 { 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 *******************************************************************************/ 197 UINT8 avrc_opcode_from_pdu(UINT8 pdu) 198 { 199 UINT8 opcode = 0; 200 201 switch (pdu) 202 { 203 case AVRC_PDU_NEXT_GROUP: 204 case AVRC_PDU_PREV_GROUP: /* pass thru */ 205 opcode = AVRC_OP_PASS_THRU; 206 break; 207 208 default: /* vendor */ 209 opcode = AVRC_OP_VENDOR; 210 break; 211 } 212 213 return opcode; 214 } 215 216 /******************************************************************************* 217 ** 218 ** Function avrc_is_valid_opcode 219 ** 220 ** Description This function returns the opcode of the given pdu 221 ** 222 ** Returns AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSE 223 ** 224 *******************************************************************************/ 225 BOOLEAN avrc_is_valid_opcode(UINT8 opcode) 226 { 227 BOOLEAN is_valid = FALSE; 228 switch (opcode) 229 { 230 case AVRC_OP_BROWSE: 231 case AVRC_OP_PASS_THRU: 232 case AVRC_OP_VENDOR: 233 is_valid = TRUE; 234 break; 235 } 236 return is_valid; 237 } 238 239 #endif /* (AVRC_METADATA_INCLUDED == TRUE) */ 240 241
