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/******************************************************************************
*
* Copyright (C) 2011-2012 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.
*
******************************************************************************/
/******************************************************************************
*
* This is the implementation of the API for the advanced audio/video (AV)
* subsystem of BTA, Broadcom's Bluetooth application layer for mobile
* phones.
*
******************************************************************************/
#include "common/bt_target.h"
#if defined(BTA_AV_INCLUDED) && (BTA_AV_INCLUDED == TRUE)
#include "osi/allocator.h"
#include "bta/bta_api.h"
#include "bta/bta_sys.h"
#include "bta/bta_av_api.h"
#include "bta_av_int.h"
#include <string.h>
/*****************************************************************************
** Constants
*****************************************************************************/
static const tBTA_SYS_REG bta_av_reg = {
bta_av_hdl_event,
BTA_AvDisable
};
/*******************************************************************************
**
** Function BTA_AvEnable
**
** Description Enable the advanced audio/video service. When the enable
** operation is complete the callback function will be
** called with a BTA_AV_ENABLE_EVT. This function must
** be called before other function in the AV API are
** called.
**
** Returns void
**
*******************************************************************************/
void BTA_AvEnable(tBTA_SEC sec_mask, tBTA_AV_FEAT features, tBTA_AV_CBACK *p_cback)
{
tBTA_AV_API_ENABLE *p_buf;
/* register with BTA system manager */
bta_sys_register(BTA_ID_AV, &bta_av_reg);
if ((p_buf = (tBTA_AV_API_ENABLE *) osi_malloc(sizeof(tBTA_AV_API_ENABLE))) != NULL) {
p_buf->hdr.event = BTA_AV_API_ENABLE_EVT;
p_buf->p_cback = p_cback;
p_buf->features = features;
p_buf->sec_mask = sec_mask;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvDisable
**
** Description Disable the advanced audio/video service.
**
** Returns void
**
*******************************************************************************/
void BTA_AvDisable(void)
{
BT_HDR *p_buf;
bta_sys_deregister(BTA_ID_AV);
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_DISABLE_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvRegister
**
** Description Register the audio or video service to stack. When the
** operation is complete the callback function will be
** called with a BTA_AV_REGISTER_EVT. This function must
** be called before AVDT stream is open.
**
**
** Returns void
**
*******************************************************************************/
void BTA_AvRegister(tBTA_AV_CHNL chnl, const char *p_service_name, UINT8 app_id,
tBTA_AV_DATA_CBACK *p_data_cback, tBTA_AV_CO_FUNCTS *bta_av_cos,
tBTA_AVRC_CO_FUNCTS *bta_avrc_cos, UINT8 tsep)
{
tBTA_AV_API_REG *p_buf;
if ((p_buf = (tBTA_AV_API_REG *) osi_malloc(sizeof(tBTA_AV_API_REG))) != NULL) {
p_buf->hdr.layer_specific = chnl;
p_buf->hdr.event = BTA_AV_API_REGISTER_EVT;
if (p_service_name) {
BCM_STRNCPY_S(p_buf->p_service_name, p_service_name, BTA_SERVICE_NAME_LEN);
} else {
p_buf->p_service_name[0] = '\0';
}
p_buf->app_id = app_id;
p_buf->p_app_data_cback = p_data_cback;
p_buf->bta_av_cos = bta_av_cos;
p_buf->bta_avrc_cos = bta_avrc_cos;
p_buf->tsep = tsep;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvDeregister
**
** Description Deregister the audio or video service
**
** Returns void
**
*******************************************************************************/
void BTA_AvDeregister(tBTA_AV_HNDL hndl)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->layer_specific = hndl;
p_buf->event = BTA_AV_API_DEREGISTER_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvOpen
**
** Description Opens an advanced audio/video connection to a peer device.
** When connection is open callback function is called
** with a BTA_AV_OPEN_EVT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvOpen(BD_ADDR bd_addr, tBTA_AV_HNDL handle, BOOLEAN use_rc, tBTA_SEC sec_mask,
UINT16 uuid)
{
tBTA_AV_API_OPEN *p_buf;
if ((p_buf = (tBTA_AV_API_OPEN *) osi_malloc(sizeof(tBTA_AV_API_OPEN))) != NULL) {
p_buf->hdr.event = BTA_AV_API_OPEN_EVT;
p_buf->hdr.layer_specific = handle;
bdcpy(p_buf->bd_addr, bd_addr);
p_buf->use_rc = use_rc;
p_buf->sec_mask = sec_mask;
p_buf->switch_res = BTA_AV_RS_NONE;
p_buf->uuid = uuid;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvClose
**
** Description Close the current streams.
**
** Returns void
**
*******************************************************************************/
void BTA_AvClose(tBTA_AV_HNDL handle)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_CLOSE_EVT;
p_buf->layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvDisconnect
**
** Description Close the connection to the address.
**
** Returns void
**
*******************************************************************************/
void BTA_AvDisconnect(BD_ADDR bd_addr)
{
tBTA_AV_API_DISCNT *p_buf;
if ((p_buf = (tBTA_AV_API_DISCNT *) osi_malloc(sizeof(tBTA_AV_API_DISCNT))) != NULL) {
p_buf->hdr.event = BTA_AV_API_DISCONNECT_EVT;
bdcpy(p_buf->bd_addr, bd_addr);
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvStart
**
** Description Start audio/video stream data transfer.
**
** Returns void
**
*******************************************************************************/
void BTA_AvStart(void)
{
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_START_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvEnable_Sink
**
** Description Enable/Disable A2DP Sink..
**
** Returns void
**
*******************************************************************************/
void BTA_AvEnable_Sink(int enable)
{
#if (BTA_AV_SINK_INCLUDED == TRUE)
BT_HDR *p_buf;
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_AV_API_SINK_ENABLE_EVT;
p_buf->layer_specific = enable;
bta_sys_sendmsg(p_buf);
}
#else
return;
#endif
}
/*******************************************************************************
**
** Function BTA_AvStop
**
** Description Stop audio/video stream data transfer.
** If suspend is TRUE, this function sends AVDT suspend signal
** to the connected peer(s).
**
** Returns void
**
*******************************************************************************/
void BTA_AvStop(BOOLEAN suspend)
{
tBTA_AV_API_STOP *p_buf;
if ((p_buf = (tBTA_AV_API_STOP *) osi_malloc(sizeof(tBTA_AV_API_STOP))) != NULL) {
p_buf->hdr.event = BTA_AV_API_STOP_EVT;
p_buf->flush = TRUE;
p_buf->suspend = suspend;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvReconfig
**
** Description Reconfigure the audio/video stream.
** If suspend is TRUE, this function tries the suspend/reconfigure
** procedure first.
** If suspend is FALSE or when suspend/reconfigure fails,
** this function closes and re-opens the AVDT connection.
**
** Returns void
**
*******************************************************************************/
void BTA_AvReconfig(tBTA_AV_HNDL hndl, BOOLEAN suspend, UINT8 sep_info_idx,
UINT8 *p_codec_info, UINT8 num_protect, UINT8 *p_protect_info)
{
tBTA_AV_API_RCFG *p_buf;
if ((p_buf = (tBTA_AV_API_RCFG *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_RCFG) + num_protect))) != NULL) {
p_buf->hdr.layer_specific = hndl;
p_buf->hdr.event = BTA_AV_API_RECONFIG_EVT;
p_buf->num_protect = num_protect;
p_buf->suspend = suspend;
p_buf->sep_info_idx = sep_info_idx;
memcpy(p_buf->codec_info, p_codec_info, AVDT_CODEC_SIZE);
if (p_protect_info && num_protect) {
memcpy(p_buf->p_protect_info, p_protect_info, num_protect);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvProtectReq
**
** Description Send a content protection request. This function can only
** be used if AV is enabled with feature BTA_AV_FEAT_PROTECT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvProtectReq(tBTA_AV_HNDL hndl, UINT8 *p_data, UINT16 len)
{
tBTA_AV_API_PROTECT_REQ *p_buf;
if ((p_buf = (tBTA_AV_API_PROTECT_REQ *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_PROTECT_REQ) + len))) != NULL) {
p_buf->hdr.layer_specific = hndl;
p_buf->hdr.event = BTA_AV_API_PROTECT_REQ_EVT;
p_buf->len = len;
if (p_data == NULL) {
p_buf->p_data = NULL;
} else {
p_buf->p_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->p_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvProtectRsp
**
** Description Send a content protection response. This function must
** be called if a BTA_AV_PROTECT_REQ_EVT is received.
** This function can only be used if AV is enabled with
** feature BTA_AV_FEAT_PROTECT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvProtectRsp(tBTA_AV_HNDL hndl, UINT8 error_code, UINT8 *p_data, UINT16 len)
{
tBTA_AV_API_PROTECT_RSP *p_buf;
if ((p_buf = (tBTA_AV_API_PROTECT_RSP *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_PROTECT_RSP) + len))) != NULL) {
p_buf->hdr.layer_specific = hndl;
p_buf->hdr.event = BTA_AV_API_PROTECT_RSP_EVT;
p_buf->len = len;
p_buf->error_code = error_code;
if (p_data == NULL) {
p_buf->p_data = NULL;
} else {
p_buf->p_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->p_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_SetDelayValue
**
** Description Set delay report value
**
** Returns void
**
*******************************************************************************/
void BTA_SetDelayValue(UINT16 delay_value)
{
tBTA_AV_API_SET_DELAY_VALUE *p_buf;
if ((p_buf = (tBTA_AV_API_SET_DELAY_VALUE *) osi_malloc(sizeof(tBTA_AV_API_SET_DELAY_VALUE))) != NULL) {
p_buf->hdr.event = BTA_AV_API_SET_DELAY_VALUE_EVT;
p_buf->delay_value = delay_value;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_GetDelayValue
**
** Description Get delay report value
**
** Returns void
**
*******************************************************************************/
void BTA_GetDelayValue(void)
{
tBTA_AV_API_GET_DELAY_VALUE *p_buf;
if ((p_buf = (tBTA_AV_API_GET_DELAY_VALUE *) osi_malloc(sizeof(tBTA_AV_API_GET_DELAY_VALUE))) != NULL) {
p_buf->hdr.event = BTA_AV_API_GET_DELAY_VALUE_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvRemoteCmd
**
** Description Send a remote control command. This function can only
** be used if AV is enabled with feature BTA_AV_FEAT_RCCT.
**
** Returns void
**
*******************************************************************************/
void BTA_AvRemoteCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_RC rc_id, tBTA_AV_STATE key_state)
{
tBTA_AV_API_REMOTE_CMD *p_buf;
if ((p_buf = (tBTA_AV_API_REMOTE_CMD *) osi_malloc(sizeof(tBTA_AV_API_REMOTE_CMD))) != NULL) {
p_buf->hdr.event = BTA_AV_API_REMOTE_CMD_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.op_id = rc_id;
p_buf->msg.state = key_state;
p_buf->msg.p_pass_data = NULL;
p_buf->msg.pass_len = 0;
p_buf->label = label;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvVendorCmd
**
** Description Send a vendor dependent remote control command. This
** function can only be used if AV is enabled with feature
** BTA_AV_FEAT_VENDOR.
**
** Returns void
**
*******************************************************************************/
void BTA_AvVendorCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE cmd_code, UINT8 *p_data, UINT16 len)
{
tBTA_AV_API_VENDOR *p_buf;
if ((p_buf = (tBTA_AV_API_VENDOR *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL) {
p_buf->hdr.event = BTA_AV_API_VENDOR_CMD_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.hdr.ctype = cmd_code;
p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
p_buf->msg.hdr.subunit_id = 0;
p_buf->msg.company_id = p_bta_av_cfg->company_id;
p_buf->label = label;
p_buf->msg.vendor_len = len;
if (p_data == NULL) {
p_buf->msg.p_vendor_data = NULL;
} else {
p_buf->msg.p_vendor_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->msg.p_vendor_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvVendorRsp
**
** Description Send a vendor dependent remote control response.
** This function must be called if a BTA_AV_VENDOR_CMD_EVT
** is received. This function can only be used if AV is
** enabled with feature BTA_AV_FEAT_VENDOR.
**
** Returns void
**
*******************************************************************************/
void BTA_AvVendorRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code, UINT8 *p_data, UINT16 len, UINT32 company_id)
{
tBTA_AV_API_VENDOR *p_buf;
if ((p_buf = (tBTA_AV_API_VENDOR *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_VENDOR) + len))) != NULL) {
p_buf->hdr.event = BTA_AV_API_VENDOR_RSP_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->msg.hdr.ctype = rsp_code;
p_buf->msg.hdr.subunit_type = AVRC_SUB_PANEL;
p_buf->msg.hdr.subunit_id = 0;
if (company_id) {
p_buf->msg.company_id = company_id;
} else {
p_buf->msg.company_id = p_bta_av_cfg->company_id;
}
p_buf->label = label;
p_buf->msg.vendor_len = len;
if (p_data == NULL) {
p_buf->msg.p_vendor_data = NULL;
} else {
p_buf->msg.p_vendor_data = (UINT8 *) (p_buf + 1);
memcpy(p_buf->msg.p_vendor_data, p_data, len);
}
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvOpenRc
**
** Description Open an AVRCP connection toward the device with the
** specified handle
**
** Returns void
**
*******************************************************************************/
void BTA_AvOpenRc(tBTA_AV_HNDL handle)
{
tBTA_AV_API_OPEN_RC *p_buf;
if ((p_buf = (tBTA_AV_API_OPEN_RC *) osi_malloc(sizeof(tBTA_AV_API_OPEN_RC))) != NULL) {
p_buf->hdr.event = BTA_AV_API_RC_OPEN_EVT;
p_buf->hdr.layer_specific = handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvCloseRc
**
** Description Close an AVRCP connection
**
** Returns void
**
*******************************************************************************/
void BTA_AvCloseRc(UINT8 rc_handle)
{
tBTA_AV_API_CLOSE_RC *p_buf;
if ((p_buf = (tBTA_AV_API_CLOSE_RC *) osi_malloc(sizeof(tBTA_AV_API_CLOSE_RC))) != NULL) {
p_buf->hdr.event = BTA_AV_API_RC_CLOSE_EVT;
p_buf->hdr.layer_specific = rc_handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvMetaRsp
**
** Description Send a Metadata/Advanced Control response. The message contained
** in p_pkt can be composed with AVRC utility functions.
** This function can only be used if AV is enabled with feature
** BTA_AV_FEAT_METADATA.
**
** Returns void
**
*******************************************************************************/
void BTA_AvMetaRsp(UINT8 rc_handle, UINT8 label, tBTA_AV_CODE rsp_code,
BT_HDR *p_pkt)
{
tBTA_AV_API_META_RSP *p_buf;
if ((p_buf = (tBTA_AV_API_META_RSP *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL) {
p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->rsp_code = rsp_code;
p_buf->p_pkt = p_pkt;
p_buf->is_rsp = TRUE;
p_buf->label = label;
bta_sys_sendmsg(p_buf);
} else if (p_pkt) {
osi_free(p_pkt);
}
}
/*******************************************************************************
**
** Function BTA_AvMetaCmd
**
** Description Send a Metadata/Advanced Control command. The message contained
** in p_pkt can be composed with AVRC utility functions.
** This function can only be used if AV is enabled with feature
** BTA_AV_FEAT_METADATA.
** This message is sent only when the peer supports the TG role.
*8 The only command makes sense right now is the absolute volume command.
**
** Returns void
**
*******************************************************************************/
void BTA_AvMetaCmd(UINT8 rc_handle, UINT8 label, tBTA_AV_CMD cmd_code, BT_HDR *p_pkt)
{
tBTA_AV_API_META_RSP *p_buf;
if ((p_buf = (tBTA_AV_API_META_RSP *) osi_malloc((UINT16) (sizeof(tBTA_AV_API_META_RSP)))) != NULL) {
p_buf->hdr.event = BTA_AV_API_META_RSP_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->p_pkt = p_pkt;
p_buf->rsp_code = cmd_code;
p_buf->is_rsp = FALSE;
p_buf->label = label;
bta_sys_sendmsg(p_buf);
}
}
#if BTA_AV_CA_INCLUDED
/*******************************************************************************
**
** Function BTA_AvCaOpen
**
** Description Open a Cover Art OBEX connection to peer device. This function
** can only be used if peer device TG support Cover Art feature and
** AV is enabled with feature BTA_AV_FEAT_METADATA.
**
** Returns void
**
*******************************************************************************/
void BTA_AvCaOpen(UINT8 rc_handle, UINT16 mtu)
{
tBTA_AV_API_CA_OPEN *p_buf;
if ((p_buf = (tBTA_AV_API_CA_OPEN *) osi_malloc(sizeof(tBTA_AV_API_CA_OPEN))) != NULL) {
p_buf->hdr.event = BTA_AV_API_CA_OPEN_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->mtu = mtu;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvCaClose
**
** Description Close a Cover Art OBEX connection.
**
** Returns void
**
*******************************************************************************/
void BTA_AvCaClose(UINT8 rc_handle)
{
tBTA_AV_API_CA_CLOSE *p_buf;
if ((p_buf = (tBTA_AV_API_CA_CLOSE *) osi_malloc(sizeof(tBTA_AV_API_CA_CLOSE))) != NULL) {
p_buf->hdr.event = BTA_AV_API_CA_CLOSE_EVT;
p_buf->hdr.layer_specific = rc_handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function BTA_AvCaGet
**
** Description Start the process to get image properties, get image or get
** linked thumbnail. This function can only be used if Cover Art
** OBEX connection is established.
**
** Returns void
**
*******************************************************************************/
void BTA_AvCaGet(UINT8 rc_handle, tBTA_AV_GET_TYPE type, UINT8 *image_handle, UINT8 *image_descriptor, UINT16 image_descriptor_len)
{
tBTA_AV_API_CA_GET *p_buf;
if ((p_buf = (tBTA_AV_API_CA_GET *) osi_malloc(sizeof(tBTA_AV_API_CA_GET))) != NULL) {
p_buf->hdr.event = BTA_AV_API_CA_GET_EVT;
p_buf->hdr.layer_specific = rc_handle;
p_buf->type = type;
memcpy(p_buf->image_handle, image_handle, BTA_AV_CA_IMG_HDL_LEN);
p_buf->image_descriptor = image_descriptor;
p_buf->image_descriptor_len = image_descriptor_len;
bta_sys_sendmsg(p_buf);
}
}
#endif /* BTA_AV_CA_INCLUDED */
#endif /* BTA_AV_INCLUDED */
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