/******************************************************************************
**
** Function avrc_send_continue_frag
**
** Description This function sends a continue response fragment
**
** Returns Nothing.
**
******************************************************************************/
static void avrc_send_continue_frag(UINT8 handle, UINT8 label)
{
tAVRC_FRAG_CB *p_fcb;
BT_HDR *p_pkt_old, *p_pkt;
UINT8 *p_old, *p_data;
UINT8 cr = AVCT_RSP;
tAVRC_RSP rej_rsp;
p_fcb = &avrc_cb.fcb[handle];
p_pkt = p_fcb->p_fmsg;
AVRC_TRACE_DEBUG("%s handle = %u label = %u len = %d",
__func__, handle, label, p_pkt->len);
if (p_pkt->len > AVRC_MAX_CTRL_DATA_LEN) {
int offset_len = MAX(AVCT_MSG_OFFSET, p_pkt->offset);
p_pkt_old = p_fcb->p_fmsg;
p_pkt = (BT_HDR *)osi_malloc((UINT16)(AVRC_PACKET_LEN + offset_len + BT_HDR_SIZE));
if (p_pkt) {
p_pkt->len = AVRC_MAX_CTRL_DATA_LEN;
p_pkt->offset = AVCT_MSG_OFFSET;
p_pkt->layer_specific = p_pkt_old->layer_specific;
p_pkt->event = p_pkt_old->event;
p_old = (UINT8 *)(p_pkt_old + 1) + p_pkt_old->offset;
p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
memcpy (p_data, p_old, AVRC_MAX_CTRL_DATA_LEN);
/* use AVRC continue packet type */
p_data += AVRC_VENDOR_HDR_SIZE;
p_data++; /* pdu */
*p_data++ = AVRC_PKT_CONTINUE;
/* 4=pdu, pkt_type & len */
UINT16_TO_BE_STREAM(p_data, (AVRC_MAX_CTRL_DATA_LEN - AVRC_VENDOR_HDR_SIZE - 4));
/* prepare the left over for as an end fragment */
avrc_prep_end_frag (handle);
} else {
/* use the current GKI buffer to send Internal error status */
p_pkt = p_fcb->p_fmsg;
p_fcb->p_fmsg = NULL;
p_fcb->frag_enabled = FALSE;
AVRC_TRACE_ERROR ("AVRC_MsgReq no buffers for fragmentation - send internal error" );
p_data = (UINT8 *)(p_pkt + 1) + p_pkt->offset;
*p_data++ = AVRC_PDU_REQUEST_CONTINUATION_RSP;
*p_data++ = 0;
UINT16_TO_BE_STREAM(p_data, 0);
p_pkt->len = 4;
rej_rsp.pdu = AVRC_PDU_REQUEST_CONTINUATION_RSP;
rej_rsp.status = AVRC_STS_INTERNAL_ERR;
AVRC_BldResponse( handle, (tAVRC_RESPONSE *)&rej_rsp, &p_pkt);
cr = AVCT_RSP;
}
} else {
/* end fragment. clean the control block */
p_fcb->frag_enabled = FALSE;
p_fcb->p_fmsg = NULL;
}
AVCT_MsgReq( handle, label, cr, p_pkt);
}
/* Generic reject response */
static void send_reject_response (UINT8 rc_handle, UINT8 label, UINT8 pdu, UINT8 status)
{
UINT8 ctype = AVRC_RSP_REJ;
tAVRC_RESPONSE avrc_rsp;
BT_HDR *p_msg = NULL;
memset (&avrc_rsp, 0, sizeof(tAVRC_RESPONSE));
avrc_rsp.rsp.opcode = opcode_from_pdu(pdu);
avrc_rsp.rsp.pdu = pdu;
avrc_rsp.rsp.status = status;
if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(rc_handle, &avrc_rsp, &p_msg)) )
{
BTIF_TRACE_DEBUG4("%s:Sending error notification to handle:%d. pdu:%s,status:0x%02x",
__FUNCTION__, rc_handle, dump_rc_pdu(pdu), status);
BTA_AvMetaRsp(rc_handle, label, ctype, p_msg);
}
}
/***************************************************************************
* Function send_metamsg_rsp
*
* - Argument:
* rc_handle RC handle corresponding to the connected RC
* label Label of the RC response
* code Response type
* pmetamsg_resp Vendor response
*
* - Description: Remote control metamsg response handler (AVRCP 1.3)
*
***************************************************************************/
static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label, tBTA_AV_CODE code,
tAVRC_RESPONSE *pmetamsg_resp)
{
UINT8 ctype;
tAVRC_STS status;
if (!pmetamsg_resp)
{
BTIF_TRACE_WARNING1("%s: Invalid response received from application", __FUNCTION__);
return;
}
BTIF_TRACE_EVENT5("+%s: rc_handle: %d, label: %d, code: 0x%02x, pdu: %s", __FUNCTION__,
rc_handle, label, code, dump_rc_pdu(pmetamsg_resp->rsp.pdu));
if (pmetamsg_resp->rsp.status != AVRC_STS_NO_ERROR)
{
ctype = AVRC_RSP_REJ;
}
else
{
if ( code < AVRC_RSP_NOT_IMPL)
{
if (code == AVRC_CMD_NOTIF)
{
ctype = AVRC_RSP_INTERIM;
}
else if (code == AVRC_CMD_STATUS)
{
ctype = AVRC_RSP_IMPL_STBL;
}
else
{
ctype = AVRC_RSP_ACCEPT;
}
}
else
{
ctype = code;
}
}
/* if response is for register_notification, make sure the rc has
actually registered for this */
if((pmetamsg_resp->rsp.pdu == AVRC_PDU_REGISTER_NOTIFICATION) && (code == AVRC_RSP_CHANGED))
{
BOOLEAN bSent = FALSE;
UINT8 event_id = pmetamsg_resp->reg_notif.event_id;
BOOLEAN bNotify = (btif_rc_cb.rc_connected) && (btif_rc_cb.rc_notif[event_id-1].bNotify);
/* de-register this notification for a CHANGED response */
btif_rc_cb.rc_notif[event_id-1].bNotify = FALSE;
BTIF_TRACE_DEBUG4("%s rc_handle: %d. event_id: 0x%02d bNotify:%u", __FUNCTION__,
btif_rc_cb.rc_handle, event_id, bNotify);
if (bNotify)
{
BT_HDR *p_msg = NULL;
tAVRC_STS status;
if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(btif_rc_cb.rc_handle,
pmetamsg_resp, &p_msg)) )
{
BTIF_TRACE_DEBUG3("%s Sending notification to rc_handle: %d. event_id: 0x%02d",
__FUNCTION__, btif_rc_cb.rc_handle, event_id);
bSent = TRUE;
BTA_AvMetaRsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label,
ctype, p_msg);
}
else
{
BTIF_TRACE_WARNING2("%s failed to build metamsg response. status: 0x%02x",
__FUNCTION__, status);
}
}
if (!bSent)
{
BTIF_TRACE_DEBUG2("%s: Notification not sent, as there are no RC connections or the \
CT has not subscribed for event_id: %s", __FUNCTION__, dump_rc_notification_event_id(event_id));
}
