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 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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
