/*******************************************************************************
**
** Function avdt_ccb_snd_msg
**
** Description
**
**
** Returns void.
**
*******************************************************************************/
void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
{
BT_HDR *p_msg;
UNUSED(p_data);
/* if not congested */
if (!p_ccb->cong)
{
/* are we sending a fragmented message? continue sending fragment */
if (p_ccb->p_curr_msg != NULL)
{
avdt_msg_send(p_ccb, NULL);
}
/* do we have responses to send? send them */
else if (!GKI_queue_is_empty(&p_ccb->rsp_q))
{
while ((p_msg = (BT_HDR *) GKI_dequeue(&p_ccb->rsp_q)) != NULL)
{
if (avdt_msg_send(p_ccb, p_msg) == TRUE)
{
/* break out if congested */
break;
}
}
}
/* do we have commands to send? send next command */
avdt_ccb_snd_cmd(p_ccb, NULL);
}
}
/*******************************************************************************
**
** Function avdt_ccb_ret_cmd
**
** Description This function is called to retransmit the currently
** pending command. The retransmission count is incremented.
** If the count reaches the maximum number of retransmissions,
** the event is treated as a response timeout.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
{
UINT8 err_code = AVDT_ERR_TIMEOUT;
BT_HDR *p_msg;
p_ccb->ret_count++;
if (p_ccb->ret_count == AVDT_RET_MAX)
{
/* command failed */
p_ccb->ret_count = 0;
avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
/* go to next queued command */
avdt_ccb_snd_cmd(p_ccb, p_data);
}
else
{
/* if command pending and we're not congested and not sending a fragment */
if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd != NULL))
{
/* make copy of message in p_curr_cmd and send it */
if ((p_msg = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID)) != NULL)
{
memcpy(p_msg, p_ccb->p_curr_cmd,
(sizeof(BT_HDR) + p_ccb->p_curr_cmd->offset + p_ccb->p_curr_cmd->len));
avdt_msg_send(p_ccb, p_msg);
}
}
/* restart timer */
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_RET, avdt_cb.rcb.ret_tout);
}
}
/*******************************************************************************
**
** Function avdt_ccb_snd_cmd
**
** Description This function is called the send the next command,
** if any, in the command queue.
**
**
** Returns void.
**
*******************************************************************************/
void avdt_ccb_snd_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
{
BT_HDR *p_msg;
UNUSED(p_data);
/* do we have commands to send? send next command; make sure we're clear;
** not congested, not sending fragment, not waiting for response
*/
if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd == NULL)) {
if ((p_msg = (BT_HDR *) fixed_queue_try_dequeue(p_ccb->cmd_q)) != NULL) {
/* make a copy of buffer in p_curr_cmd */
if ((p_ccb->p_curr_cmd = (BT_HDR *) osi_malloc(AVDT_CMD_BUF_SIZE)) != NULL) {
memcpy(p_ccb->p_curr_cmd, p_msg, (sizeof(BT_HDR) + p_msg->offset + p_msg->len));
avdt_msg_send(p_ccb, p_msg);
}
}
}
}
