1 /****************************************************************************** 2 * 3 * Copyright (C) 2003-2012 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 19 /****************************************************************************** 20 * 21 * VRCP internal header file. 22 * 23 ******************************************************************************/ 24 25 26 #ifndef AVRC_INT_H 27 #define AVRC_INT_H 28 29 #include "avct_defs.h" 30 #include "avrc_api.h" 31 32 /* DEBUG FLAGS 33 * 34 * #define META_DEBUG_ENABLED 35 */ 36 /***************************************************************************** 37 ** Constants 38 *****************************************************************************/ 39 40 /* Number of attributes in AVRC SDP record. */ 41 #define AVRC_NUM_ATTR 6 42 43 /* Number of protocol elements in protocol element list. */ 44 #define AVRC_NUM_PROTO_ELEMS 2 45 46 #ifndef AVRC_MIN_CMD_LEN 47 #define AVRC_MIN_CMD_LEN 20 48 #endif 49 50 #define AVRC_UNIT_OPRND_BYTES 5 51 #define AVRC_SUB_OPRND_BYTES 4 52 #define AVRC_SUBRSP_OPRND_BYTES 3 53 #define AVRC_SUB_PAGE_MASK 7 54 #define AVRC_SUB_PAGE_SHIFT 4 55 #define AVRC_SUB_EXT_CODE 7 56 #define AVRC_PASS_OP_ID_MASK 0x7F 57 #define AVRC_PASS_STATE_MASK 0x80 58 #define AVRC_CMD_OPRND_PAD 0xFF 59 60 #define AVRC_CTYPE_MASK 0x0F 61 #define AVRC_SUBTYPE_MASK 0xF8 62 #define AVRC_SUBTYPE_SHIFT 3 63 #define AVRC_SUBID_MASK 0x07 64 #define AVRC_SUBID_IGNORE 0x07 65 66 #define AVRC_SINGLE_PARAM_SIZE 1 67 #define AVRC_METADATA_PKT_TYPE_MASK 0x03 68 #define AVRC_PASS_THOUGH_MSG_MASK 0x80 /* MSB of msg_type indicates the PAS THROUGH msg */ 69 #define AVRC_VENDOR_UNIQUE_MASK 0x70 /* vendor unique id */ 70 71 72 /* Company ID is 24-bit integer We can not use the macros in bt_types.h */ 73 #define AVRC_CO_ID_TO_BE_STREAM(p, u32) {*(p)++ = (UINT8)((u32) >> 16); *(p)++ = (UINT8)((u32) >> 8); *(p)++ = (UINT8)(u32); } 74 #define AVRC_BE_STREAM_TO_CO_ID(u32, p) {u32 = (((UINT32)(*((p) + 2))) + (((UINT32)(*((p) + 1))) << 8) + (((UINT32)(*(p))) << 16)); (p) += 3;} 75 76 #define AVRC_AVC_HDR_SIZE 3 /* ctype, subunit*, opcode */ 77 78 #define AVRC_MIN_META_HDR_SIZE 4 /* pdu id(1), packet type(1), param len(2) */ 79 #define AVRC_MIN_BROWSE_HDR_SIZE 3 /* pdu id(1), param len(2) */ 80 81 #define AVRC_VENDOR_HDR_SIZE 6 /* ctype, subunit*, opcode, CO_ID */ 82 #define AVRC_MSG_VENDOR_OFFSET 23 83 #define AVRC_MIN_VENDOR_SIZE (AVRC_MSG_VENDOR_OFFSET + BT_HDR_SIZE + AVRC_MIN_META_HDR_SIZE) 84 85 #define AVRC_PASS_THRU_SIZE 8 86 #define AVRC_MSG_PASS_THRU_OFFSET 25 87 #define AVRC_MIN_PASS_THRU_SIZE (AVRC_MSG_PASS_THRU_OFFSET + BT_HDR_SIZE + 4) 88 89 #define AVRC_MIN_BROWSE_SIZE (AVCT_BROWSE_OFFSET + BT_HDR_SIZE + AVRC_MIN_BROWSE_HDR_SIZE) 90 91 #define AVRC_CTRL_PKT_LEN(pf, pk) {pf = (UINT8 *)((pk) + 1) + (pk)->offset + 2;} 92 93 #define AVRC_MAX_CTRL_DATA_LEN (AVRC_PACKET_LEN) 94 95 /***************************************************************************** 96 ** Type definitions 97 *****************************************************************************/ 98 99 #if (AVRC_METADATA_INCLUDED == TRUE) 100 /* type for Metadata fragmentation control block */ 101 typedef struct 102 { 103 BT_HDR *p_fmsg; /* the fragmented message */ 104 UINT8 frag_pdu; /* the PDU ID for fragmentation */ 105 BOOLEAN frag_enabled; /* fragmentation flag */ 106 } tAVRC_FRAG_CB; 107 108 /* type for Metadata re-assembly control block */ 109 typedef struct 110 { 111 BT_HDR *p_rmsg; /* the received message */ 112 UINT16 rasm_offset; /* re-assembly flag, the offset of the start fragment */ 113 UINT8 rasm_pdu; /* the PDU ID for re-assembly */ 114 } tAVRC_RASM_CB; 115 #endif 116 117 typedef struct 118 { 119 tAVRC_CONN_CB ccb[AVCT_NUM_CONN]; 120 #if (AVRC_METADATA_INCLUDED == TRUE) 121 tAVRC_FRAG_CB fcb[AVCT_NUM_CONN]; 122 tAVRC_RASM_CB rcb[AVCT_NUM_CONN]; 123 #endif 124 tAVRC_FIND_CBACK *p_cback; /* pointer to application callback */ 125 tSDP_DISCOVERY_DB *p_db; /* pointer to discovery database */ 126 UINT16 service_uuid; /* service UUID to search */ 127 UINT8 trace_level; 128 } tAVRC_CB; 129 130 131 132 #ifdef __cplusplus 133 extern "C" 134 { 135 #endif 136 137 /****************************************************************************** 138 ** Main Control Block 139 *******************************************************************************/ 140 #if AVRC_DYNAMIC_MEMORY == FALSE 141 extern tAVRC_CB avrc_cb; 142 #else 143 extern tAVRC_CB *avrc_cb_ptr; 144 #define avrc_cb (*avrc_cb_ptr) 145 #endif 146 147 extern BOOLEAN avrc_is_valid_pdu_id(UINT8 pdu_id); 148 extern BOOLEAN avrc_is_valid_player_attrib_value(UINT8 attrib, UINT8 value); 149 extern BT_HDR * avrc_alloc_ctrl_pkt (UINT8 pdu); 150 extern tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS *p_msg, UINT16 *p_vendor_unique_id); 151 extern UINT8 avrc_opcode_from_pdu(UINT8 pdu); 152 extern BOOLEAN avrc_is_valid_opcode(UINT8 opcode); 153 154 #ifdef __cplusplus 155 } 156 #endif 157 158 #endif /* AVRC_INT_H */ 159