/*******************************************************************************
**
** Function bta_hh_api_disable
**
** Description Perform necessary operations to disable HID host.
**
**
** Returns void
**
*******************************************************************************/
void bta_hh_api_disable(void)
{
UINT8 xx;
/* service is not enabled */
if (bta_hh_cb.p_cback == NULL)
return;
/* no live connection, signal DISC_CMPL_EVT directly */
if (!bta_hh_cb.cnt_num)
{
bta_hh_disc_cmpl();
}
else /* otherwise, disconnect all live connections */
{
bta_hh_cb.w4_disable = TRUE;
for(xx = 0; xx < BTA_HH_MAX_DEVICE; xx ++)
{
/* send API_CLOSE event to every connected device */
if ( bta_hh_cb.kdev[xx].state == BTA_HH_CONN_ST )
{
/* disconnect all connected devices */
bta_hh_sm_execute(&bta_hh_cb.kdev[xx],
BTA_HH_API_CLOSE_EVT,
NULL);
}
}
}
return;
}
/*******************************************************************************
**
** Function bta_hh_hdl_event
**
** Description HID host main event handling function.
**
**
** Returns void
**
*******************************************************************************/
BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg)
{
UINT8 index = BTA_HH_IDX_INVALID;
tBTA_HH_DEV_CB *p_cb = NULL;
switch (p_msg->event) {
case BTA_HH_API_ENABLE_EVT:
bta_hh_api_enable((tBTA_HH_DATA *) p_msg);
break;
case BTA_HH_API_DISABLE_EVT:
bta_hh_api_disable();
break;
case BTA_HH_DISC_CMPL_EVT: /* disable complete */
bta_hh_disc_cmpl();
break;
default:
/* all events processed in state machine need to find corresponding
CB before proceed */
if (p_msg->event == BTA_HH_API_OPEN_EVT) {
index = bta_hh_find_cb(((tBTA_HH_API_CONN *)p_msg)->bd_addr);
} else if (p_msg->event == BTA_HH_API_MAINT_DEV_EVT) {
/* if add device */
if (((tBTA_HH_MAINT_DEV *)p_msg)->sub_event == BTA_HH_ADD_DEV_EVT) {
index = bta_hh_find_cb(((tBTA_HH_MAINT_DEV *)p_msg)->bda);
} else { /* else remove device by handle */
index = bta_hh_dev_handle_to_cb_idx((UINT8)p_msg->layer_specific);
// btla-specific ++
/* If BT disable is done while the HID device is connected and Link_Key uses unauthenticated combination
* then we can get into a situation where remove_bonding is called with the index set to 0 (without getting
* cleaned up). Only when VIRTUAL_UNPLUG is called do we cleanup the index and make it MAX_KNOWN.
* So if REMOVE_DEVICE is called and in_use is FALSE then we should treat this as a NULL p_cb. Hence we
* force the index to be IDX_INVALID
*/
if ((index != BTA_HH_IDX_INVALID) &&
(bta_hh_cb.kdev[index].in_use == FALSE)) {
index = BTA_HH_IDX_INVALID;
}
// btla-specific --
}
} else if (p_msg->event == BTA_HH_INT_OPEN_EVT) {
index = bta_hh_find_cb(((tBTA_HH_CBACK_DATA *)p_msg)->addr);
} else {
index = bta_hh_dev_handle_to_cb_idx((UINT8)p_msg->layer_specific);
}
if (index != BTA_HH_IDX_INVALID) {
p_cb = &bta_hh_cb.kdev[index];
}
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG("bta_hh_hdl_event:: handle = %d dev_cb[%d] ", p_msg->layer_specific, index);
#endif
bta_hh_sm_execute(p_cb, p_msg->event, (tBTA_HH_DATA *) p_msg);
}
return (TRUE);
}