63e5cbbd66
component/bt: Added the Macro for the classic BT support. component/bt: added the bluedroid deinit method. component/bt: allow more classic BT global variables to use dynamic allocation scheme 1. allocate memory for AVDT, AVCT control blocks when dynamic memory is used 2. allow SBC decoder buffer to use dynamic allocation scheme component/bt: Remove the wrong changes in bt/Kconfig & Added the GATTS_INCLUDED in the gatt_free function when gatt service close. component/bt: Shorten the abbreviation BT_ALLOCATION_FROM_SPIRAM_FIRST and BT_BLE_DYNAMIC_ENV_MEMORY two macros.
444 lines
15 KiB
C
444 lines
15 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2003-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* This module contains API of the audio/video control transport protocol.
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*
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******************************************************************************/
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#include <string.h>
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#include "bt_types.h"
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#include "bt_target.h"
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#include "bt_defs.h"
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#include "l2c_api.h"
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#include "l2cdefs.h"
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#include "btm_api.h"
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#include "avct_api.h"
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#include "avct_int.h"
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#include "allocator.h"
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#if (defined(AVCT_INCLUDED) && AVCT_INCLUDED == TRUE)
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/* Control block for AVCT */
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#if AVCT_DYNAMIC_MEMORY == FALSE
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tAVCT_CB avct_cb;
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#else
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tAVCT_CB *avct_cb_ptr;
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#endif
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/*******************************************************************************
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**
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** Function AVCT_Register
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**
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** Description This is the system level registration function for the
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** AVCTP protocol. This function initializes AVCTP and
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** prepares the protocol stack for its use. This function
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** must be called once by the system or platform using AVCTP
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** before the other functions of the API an be used.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void AVCT_Register(UINT16 mtu, UINT16 mtu_br, UINT8 sec_mask)
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{
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UNUSED(mtu_br);
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AVCT_TRACE_API("AVCT_Register");
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/* register PSM with L2CAP */
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L2CA_Register(AVCT_PSM, (tL2CAP_APPL_INFO *) &avct_l2c_appl);
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/* set security level */
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BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVCTP, sec_mask, AVCT_PSM, 0, 0);
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BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVCTP, sec_mask, AVCT_PSM, 0, 0);
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/* initialize AVCTP data structures */
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memset(&avct_cb, 0, sizeof(tAVCT_CB));
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#if (AVCT_BROWSE_INCLUDED == TRUE)
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/* Include the browsing channel which uses eFCR */
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L2CA_Register(AVCT_BR_PSM, (tL2CAP_APPL_INFO *) &avct_l2c_br_appl);
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BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVCTP_BROWSE, sec_mask, AVCT_BR_PSM, 0, 0);
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BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_AVCTP_BROWSE, sec_mask, AVCT_BR_PSM, 0, 0);
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if (mtu_br < AVCT_MIN_BROWSE_MTU) {
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mtu_br = AVCT_MIN_BROWSE_MTU;
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}
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avct_cb.mtu_br = mtu_br;
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#endif
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#if defined(AVCT_INITIAL_TRACE_LEVEL)
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avct_cb.trace_level = AVCT_INITIAL_TRACE_LEVEL;
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#else
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avct_cb.trace_level = BT_TRACE_LEVEL_NONE;
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#endif
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if (mtu < AVCT_MIN_CONTROL_MTU) {
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mtu = AVCT_MIN_CONTROL_MTU;
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}
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/* store mtu */
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avct_cb.mtu = mtu;
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}
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/*******************************************************************************
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**
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** Function AVCT_Deregister
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**
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** Description This function is called to deregister use AVCTP protocol.
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** It is called when AVCTP is no longer being used by any
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** application in the system. Before this function can be
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** called, all connections must be removed with
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** AVCT_RemoveConn().
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void AVCT_Deregister(void)
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{
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AVCT_TRACE_API("AVCT_Deregister");
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/* deregister PSM with L2CAP */
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L2CA_Deregister(AVCT_PSM);
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}
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/*******************************************************************************
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**
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** Function AVCT_CreateConn
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**
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** Description Create an AVCTP connection. There are two types of
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** connections, initiator and acceptor, as determined by
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** the p_cc->role parameter. When this function is called to
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** create an initiator connection, an AVCTP connection to
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** the peer device is initiated if one does not already exist.
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** If an acceptor connection is created, the connection waits
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** passively for an incoming AVCTP connection from a peer device.
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**
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**
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** Returns AVCT_SUCCESS if successful, otherwise error.
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**
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*******************************************************************************/
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UINT16 AVCT_CreateConn(UINT8 *p_handle, tAVCT_CC *p_cc, BD_ADDR peer_addr)
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{
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UINT16 result = AVCT_SUCCESS;
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tAVCT_CCB *p_ccb;
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tAVCT_LCB *p_lcb;
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AVCT_TRACE_API("AVCT_CreateConn: %d, control:%d", p_cc->role, p_cc->control);
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/* Allocate ccb; if no ccbs, return failure */
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if ((p_ccb = avct_ccb_alloc(p_cc)) == NULL) {
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result = AVCT_NO_RESOURCES;
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} else {
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/* get handle */
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*p_handle = avct_ccb_to_idx(p_ccb);
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/* if initiator connection */
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if (p_cc->role == AVCT_INT) {
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/* find link; if none allocate a new one */
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if ((p_lcb = avct_lcb_by_bd(peer_addr)) == NULL) {
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if ((p_lcb = avct_lcb_alloc(peer_addr)) == NULL) {
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/* no link resources; free ccb as well */
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avct_ccb_dealloc(p_ccb, AVCT_NO_EVT, 0, NULL);
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result = AVCT_NO_RESOURCES;
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}
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}
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/* check if PID already in use */
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else if (avct_lcb_has_pid(p_lcb, p_cc->pid)) {
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avct_ccb_dealloc(p_ccb, AVCT_NO_EVT, 0, NULL);
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result = AVCT_PID_IN_USE;
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}
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if (result == AVCT_SUCCESS) {
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/* bind lcb to ccb */
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p_ccb->p_lcb = p_lcb;
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AVCT_TRACE_DEBUG("ch_state: %d", p_lcb->ch_state);
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avct_lcb_event(p_lcb, AVCT_LCB_UL_BIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
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}
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}
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}
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return result;
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}
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/*******************************************************************************
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**
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** Function AVCT_RemoveConn
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**
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** Description Remove an AVCTP connection. This function is called when
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** the application is no longer using a connection. If this
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** is the last connection to a peer the L2CAP channel for AVCTP
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** will be closed.
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**
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**
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** Returns AVCT_SUCCESS if successful, otherwise error.
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**
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*******************************************************************************/
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UINT16 AVCT_RemoveConn(UINT8 handle)
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{
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UINT16 result = AVCT_SUCCESS;
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tAVCT_CCB *p_ccb;
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AVCT_TRACE_API("AVCT_RemoveConn");
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/* map handle to ccb */
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if ((p_ccb = avct_ccb_by_idx(handle)) == NULL) {
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result = AVCT_BAD_HANDLE;
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}
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/* if connection not bound to lcb, dealloc */
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else if (p_ccb->p_lcb == NULL) {
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avct_ccb_dealloc(p_ccb, AVCT_NO_EVT, 0, NULL);
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}
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/* send unbind event to lcb */
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else {
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avct_lcb_event(p_ccb->p_lcb, AVCT_LCB_UL_UNBIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
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}
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return result;
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}
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/*******************************************************************************
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**
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** Function AVCT_CreateBrowse
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**
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** Description Create an AVCTP Browse channel. There are two types of
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** connections, initiator and acceptor, as determined by
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** the role parameter. When this function is called to
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** create an initiator connection, the Browse channel to
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** the peer device is initiated if one does not already exist.
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** If an acceptor connection is created, the connection waits
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** passively for an incoming AVCTP connection from a peer device.
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**
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**
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** Returns AVCT_SUCCESS if successful, otherwise error.
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**
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*******************************************************************************/
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UINT16 AVCT_CreateBrowse (UINT8 handle, UINT8 role)
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{
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#if (AVCT_BROWSE_INCLUDED == TRUE)
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UINT16 result = AVCT_SUCCESS;
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tAVCT_CCB *p_ccb;
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tAVCT_BCB *p_bcb;
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int index;
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AVCT_TRACE_API("AVCT_CreateBrowse: %d", role);
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/* map handle to ccb */
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if ((p_ccb = avct_ccb_by_idx(handle)) == NULL) {
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return AVCT_BAD_HANDLE;
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} else {
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/* mark this CCB as supporting browsing channel */
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if ((p_ccb->allocated & AVCT_ALOC_BCB) == 0) {
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p_ccb->allocated |= AVCT_ALOC_BCB;
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}
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}
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/* if initiator connection */
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if (role == AVCT_INT) {
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/* the link control block must exist before this function is called as INT. */
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if ((p_ccb->p_lcb == NULL) || (p_ccb->p_lcb->allocated == 0)) {
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result = AVCT_NOT_OPEN;
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} else {
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/* find link; if none allocate a new one */
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index = p_ccb->p_lcb->allocated;
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if (index > AVCT_NUM_LINKS) {
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result = AVCT_BAD_HANDLE;
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} else {
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p_bcb = &avct_cb.bcb[index - 1];
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p_bcb->allocated = index;
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}
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}
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if (result == AVCT_SUCCESS) {
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/* bind bcb to ccb */
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p_ccb->p_bcb = p_bcb;
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AVCT_TRACE_DEBUG("ch_state: %d", p_bcb->ch_state);
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avct_bcb_event(p_bcb, AVCT_LCB_UL_BIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
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}
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}
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return result;
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#else
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UNUSED(handle);
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UNUSED(role);
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return AVCT_NO_RESOURCES;
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#endif
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}
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/*******************************************************************************
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**
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** Function AVCT_RemoveBrowse
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**
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** Description Remove an AVCTP Browse channel. This function is called when
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** the application is no longer using a connection. If this
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** is the last connection to a peer the L2CAP channel for AVCTP
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** will be closed.
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**
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**
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** Returns AVCT_SUCCESS if successful, otherwise error.
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**
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*******************************************************************************/
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UINT16 AVCT_RemoveBrowse (UINT8 handle)
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{
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#if (AVCT_BROWSE_INCLUDED == TRUE)
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UINT16 result = AVCT_SUCCESS;
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tAVCT_CCB *p_ccb;
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AVCT_TRACE_API("AVCT_RemoveBrowse");
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/* map handle to ccb */
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if ((p_ccb = avct_ccb_by_idx(handle)) == NULL) {
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result = AVCT_BAD_HANDLE;
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} else if (p_ccb->p_bcb != NULL)
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/* send unbind event to bcb */
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{
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avct_bcb_event(p_ccb->p_bcb, AVCT_LCB_UL_UNBIND_EVT, (tAVCT_LCB_EVT *) &p_ccb);
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}
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return result;
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#else
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UNUSED(handle);
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return AVCT_NO_RESOURCES;
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#endif
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}
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/*******************************************************************************
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**
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** Function AVCT_GetBrowseMtu
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**
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** Description Get the peer_mtu for the AVCTP Browse channel of the given
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** connection.
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**
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** Returns the peer browsing channel MTU.
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**
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*******************************************************************************/
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UINT16 AVCT_GetBrowseMtu (UINT8 handle)
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{
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UINT16 peer_mtu = AVCT_MIN_BROWSE_MTU;
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#if (AVCT_BROWSE_INCLUDED == TRUE)
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tAVCT_CCB *p_ccb;
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if ((p_ccb = avct_ccb_by_idx(handle)) != NULL && p_ccb->p_bcb != NULL) {
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peer_mtu = p_ccb->p_bcb->peer_mtu;
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}
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#else
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UNUSED(handle);
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#endif
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return peer_mtu;
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}
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/*******************************************************************************
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**
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** Function AVCT_GetPeerMtu
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**
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** Description Get the peer_mtu for the AVCTP channel of the given
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** connection.
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**
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** Returns the peer MTU size.
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**
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*******************************************************************************/
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UINT16 AVCT_GetPeerMtu (UINT8 handle)
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{
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UINT16 peer_mtu = L2CAP_DEFAULT_MTU;
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tAVCT_CCB *p_ccb;
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/* map handle to ccb */
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if ((p_ccb = avct_ccb_by_idx(handle)) != NULL) {
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if (p_ccb->p_lcb) {
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peer_mtu = p_ccb->p_lcb->peer_mtu;
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}
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}
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return peer_mtu;
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}
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/*******************************************************************************
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**
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** Function AVCT_MsgReq
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**
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** Description Send an AVCTP message to a peer device. In calling
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** AVCT_MsgReq(), the application should keep track of the
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** congestion state of AVCTP as communicated with events
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** AVCT_CONG_IND_EVT and AVCT_UNCONG_IND_EVT. If the
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** application calls AVCT_MsgReq() when AVCTP is congested
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** the message may be discarded. The application may make its
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** first call to AVCT_MsgReq() after it receives an
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** AVCT_CONNECT_CFM_EVT or AVCT_CONNECT_IND_EVT on control channel or
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** AVCT_BROWSE_CONN_CFM_EVT or AVCT_BROWSE_CONN_IND_EVT on browsing channel.
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**
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** p_msg->layer_specific must be set to
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** AVCT_DATA_CTRL for control channel traffic;
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** AVCT_DATA_BROWSE for for browse channel traffic.
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**
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** Returns AVCT_SUCCESS if successful, otherwise error.
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**
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*******************************************************************************/
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UINT16 AVCT_MsgReq(UINT8 handle, UINT8 label, UINT8 cr, BT_HDR *p_msg)
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{
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UINT16 result = AVCT_SUCCESS;
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tAVCT_CCB *p_ccb;
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tAVCT_UL_MSG ul_msg;
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AVCT_TRACE_API("AVCT_MsgReq");
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/* verify p_msg parameter */
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if (p_msg == NULL) {
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return AVCT_NO_RESOURCES;
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}
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AVCT_TRACE_API("len: %d", p_msg->len);
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/* map handle to ccb */
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if ((p_ccb = avct_ccb_by_idx(handle)) == NULL) {
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result = AVCT_BAD_HANDLE;
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osi_free(p_msg);
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}
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/* verify channel is bound to link */
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else if (p_ccb->p_lcb == NULL) {
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result = AVCT_NOT_OPEN;
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osi_free(p_msg);
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}
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if (result == AVCT_SUCCESS) {
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ul_msg.p_buf = p_msg;
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ul_msg.p_ccb = p_ccb;
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ul_msg.label = label;
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ul_msg.cr = cr;
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#if (AVCT_BROWSE_INCLUDED == TRUE)
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/* send msg event to bcb */
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if (p_msg->layer_specific == AVCT_DATA_BROWSE) {
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if (p_ccb->p_bcb == NULL && (p_ccb->allocated & AVCT_ALOC_BCB) == 0) {
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/* BCB channel is not open and not allocated */
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result = AVCT_BAD_HANDLE;
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osi_free(p_msg);
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} else {
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p_ccb->p_bcb = avct_bcb_by_lcb(p_ccb->p_lcb);
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avct_bcb_event(p_ccb->p_bcb, AVCT_LCB_UL_MSG_EVT, (tAVCT_LCB_EVT *) &ul_msg);
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}
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}
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/* send msg event to lcb */
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else
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#endif
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{
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avct_lcb_event(p_ccb->p_lcb, AVCT_LCB_UL_MSG_EVT, (tAVCT_LCB_EVT *) &ul_msg);
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}
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}
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return result;
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}
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#endif /* #if (defined(AVCT_INCLUDED) && AVCT_INCLUDED == TRUE) */
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