| /****************************************************************************** |
| * |
| * Copyright 2003-2016 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * VRCP internal header file. |
| * |
| ******************************************************************************/ |
| |
| #ifndef AVRC_INT_H |
| #define AVRC_INT_H |
| |
| #include "avct_defs.h" |
| #include "avrc_api.h" |
| #include "osi/include/alarm.h" |
| #include "osi/include/fixed_queue.h" |
| |
| /* DEBUG FLAGS |
| * |
| * #define META_DEBUG_ENABLED |
| */ |
| /***************************************************************************** |
| * Constants |
| ****************************************************************************/ |
| |
| /* Number of attributes in AVRC SDP record. */ |
| #define AVRC_NUM_ATTR 6 |
| |
| /* Number of protocol elements in protocol element list. */ |
| #define AVRC_NUM_PROTO_ELEMS 2 |
| |
| #ifndef AVRC_MIN_CMD_LEN |
| #define AVRC_MIN_CMD_LEN 20 |
| #endif |
| |
| #define AVRC_UNIT_OPRND_BYTES 5 |
| #define AVRC_SUB_OPRND_BYTES 4 |
| #define AVRC_SUBRSP_OPRND_BYTES 3 |
| #define AVRC_SUB_PAGE_MASK 7 |
| #define AVRC_SUB_PAGE_SHIFT 4 |
| #define AVRC_SUB_EXT_CODE 7 |
| #define AVRC_PASS_OP_ID_MASK 0x7F |
| #define AVRC_PASS_STATE_MASK 0x80 |
| #define AVRC_CMD_OPRND_PAD 0xFF |
| |
| #define AVRC_CTYPE_MASK 0x0F |
| #define AVRC_SUBTYPE_MASK 0xF8 |
| #define AVRC_SUBTYPE_SHIFT 3 |
| #define AVRC_SUBID_MASK 0x07 |
| #define AVRC_SUBID_IGNORE 0x07 |
| |
| #define AVRC_SINGLE_PARAM_SIZE 1 |
| #define AVRC_METADATA_PKT_TYPE_MASK 0x03 |
| #define AVRC_PASS_THOUGH_MSG_MASK \ |
| 0x80 /* MSB of msg_type indicates the PAS THROUGH msg */ |
| #define AVRC_VENDOR_UNIQUE_MASK 0x70 /* vendor unique id */ |
| |
| /* Company ID is 24-bit integer We can not use the macros in bt_types.h */ |
| #define AVRC_CO_ID_TO_BE_STREAM(p, u32) \ |
| { \ |
| *(p)++ = (uint8_t)((u32) >> 16); \ |
| *(p)++ = (uint8_t)((u32) >> 8); \ |
| *(p)++ = (uint8_t)(u32); \ |
| } |
| #define AVRC_BE_STREAM_TO_CO_ID(u32, p) \ |
| { \ |
| (u32) = (((uint32_t)(*((p) + 2))) + (((uint32_t)(*((p) + 1))) << 8) + \ |
| (((uint32_t)(*(p))) << 16)); \ |
| (p) += 3; \ |
| } |
| |
| #define AVRC_AVC_HDR_SIZE 3 /* ctype, subunit*, opcode */ |
| |
| #define AVRC_MIN_META_HDR_SIZE 4 /* pdu id(1), packet type(1), param len(2) */ |
| #define AVRC_MIN_BROWSE_HDR_SIZE 3 /* pdu id(1), param len(2) */ |
| |
| #define AVRC_VENDOR_HDR_SIZE 6 /* ctype, subunit*, opcode, CO_ID */ |
| #define AVRC_MSG_VENDOR_OFFSET 23 |
| #define AVRC_MIN_VENDOR_SIZE \ |
| (AVRC_MSG_VENDOR_OFFSET + BT_HDR_SIZE + AVRC_MIN_META_HDR_SIZE) |
| |
| #define AVRC_PASS_THRU_SIZE 8 |
| #define AVRC_MSG_PASS_THRU_OFFSET 25 |
| #define AVRC_MIN_PASS_THRU_SIZE (AVRC_MSG_PASS_THRU_OFFSET + BT_HDR_SIZE + 4) |
| |
| #define AVRC_MIN_BROWSE_SIZE \ |
| (AVCT_BROWSE_OFFSET + BT_HDR_SIZE + AVRC_MIN_BROWSE_HDR_SIZE) |
| |
| #define AVRC_CTRL_PKT_LEN(pf, pk) \ |
| { (pf) = (uint8_t*)((pk) + 1) + (pk)->offset + 2; } |
| |
| #define AVRC_MAX_CTRL_DATA_LEN (AVRC_PACKET_LEN) |
| |
| /* Timeout for waiting for avrc command responses (in milliseconds) */ |
| #ifndef AVRC_CMD_TOUT_MS |
| #define AVRC_CMD_TOUT_MS (2 * 1000) |
| #endif |
| |
| /* Flags for avrc_cb.ccb_int[].flags */ |
| #define AVRC_CB_FLAGS_RSP_PENDING 0x01 /* Waiting for AVRC response */ |
| |
| /***************************************************************************** |
| * Type definitions |
| ****************************************************************************/ |
| |
| /* type for Metadata fragmentation control block */ |
| typedef struct { |
| BT_HDR* p_fmsg; /* the fragmented message */ |
| uint8_t frag_pdu; /* the PDU ID for fragmentation */ |
| bool frag_enabled; /* fragmentation flag */ |
| } tAVRC_FRAG_CB; |
| |
| /* type for Metadata re-assembly control block */ |
| typedef struct { |
| BT_HDR* p_rmsg; /* the received message */ |
| uint16_t rasm_offset; /* re-assembly flag, the offset of the start fragment */ |
| uint8_t rasm_pdu; /* the PDU ID for re-assembly */ |
| } tAVRC_RASM_CB; |
| |
| /* AVRC internal connection control block */ |
| typedef struct { |
| fixed_queue_t* |
| cmd_q; /* Command queue for serializing vendor specific commands */ |
| uint8_t flags; /* See AVRC_CB_FLAGS_* definitions */ |
| alarm_t* tle; /* Command timeout timer */ |
| } tAVRC_CONN_INT_CB; |
| |
| typedef struct { |
| tAVRC_CONN_CB |
| ccb[AVCT_NUM_CONN]; /* Connection control block from AVRC_Open API */ |
| tAVRC_CONN_INT_CB |
| ccb_int[AVCT_NUM_CONN]; /* Internal connection control block */ |
| tAVRC_FRAG_CB fcb[AVCT_NUM_CONN]; |
| tAVRC_RASM_CB rcb[AVCT_NUM_CONN]; |
| tAVRC_FIND_CBACK find_cback; /* sdp discovery callback */ |
| tSDP_DISCOVERY_DB* p_db; /* pointer to discovery database */ |
| uint16_t service_uuid; /* service UUID to search */ |
| uint8_t trace_level; |
| } tAVRC_CB; |
| |
| /****************************************************************************** |
| * Main Control Block |
| ******************************************************************************/ |
| extern tAVRC_CB avrc_cb; |
| |
| extern bool avrc_is_valid_pdu_id(uint8_t pdu_id); |
| extern bool avrc_is_valid_player_attrib_value(uint8_t attrib, uint8_t value); |
| extern BT_HDR* avrc_alloc_ctrl_pkt(uint8_t pdu); |
| extern tAVRC_STS avrc_pars_pass_thru(tAVRC_MSG_PASS* p_msg, |
| uint16_t* p_vendor_unique_id); |
| extern uint8_t avrc_opcode_from_pdu(uint8_t pdu); |
| extern bool avrc_is_valid_opcode(uint8_t opcode); |
| extern void avrc_flush_cmd_q(uint8_t handle); |
| void avrc_start_cmd_timer(uint8_t handle, uint8_t label, uint8_t msg_mask); |
| void avrc_send_next_vendor_cmd(uint8_t handle); |
| |
| #endif /* AVRC_INT_H */ |