/*******************************************************************************
**
** 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);
}
/*******************************************************************************
**
** Function bta_hh_di_sdp_cback
**
** Description SDP DI callback function.
**
** Returns void
**
*******************************************************************************/
static void bta_hh_di_sdp_cback(UINT16 result)
{
tBTA_HH_DEV_CB *p_cb = bta_hh_cb.p_cur;
tBTA_HH_STATUS status = BTA_HH_ERR_SDP;
tSDP_DI_GET_RECORD di_rec;
tHID_STATUS ret;
#if BTA_HH_DEBUG
APPL_TRACE_EVENT("bta_hh_di_sdp_cback: p_cb: %d result 0x%02x", p_cb, result);
#endif
/* if DI record does not exist on remote device, vendor_id in tBTA_HH_DEV_DSCP_INFO will be
* set to 0xffff and we will allow the connection to go through. Spec mandates that DI
* record be set, but many HID devices do not set this. So for IOP purposes, we allow the
* connection to go through and update the DI record to invalid DI entry.*/
if (((result == SDP_SUCCESS) || (result == SDP_NO_RECS_MATCH)) && (p_cb != NULL))
{
if(result == SDP_SUCCESS && SDP_GetNumDiRecords(bta_hh_cb.p_disc_db) != 0)
{
/* always update information with primary DI record */
if (SDP_GetDiRecord(1, &di_rec, bta_hh_cb.p_disc_db) == SDP_SUCCESS)
{
bta_hh_update_di_info(p_cb, di_rec.rec.vendor, di_rec.rec.product, di_rec.rec.version, 0);
}
}
else /* no DI recrod available */
{
bta_hh_update_di_info(p_cb, BTA_HH_VENDOR_ID_INVALID, 0, 0, 0);
}
if ((ret = HID_HostGetSDPRecord(p_cb->addr,
bta_hh_cb.p_disc_db,
p_bta_hh_cfg->sdp_db_size,
bta_hh_sdp_cback)) == HID_SUCCESS)
{
status = BTA_HH_OK;
}
else
{
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG ("bta_hh_di_sdp_cback: HID_HostGetSDPRecord failed: Status 0x%2x",
ret);
#endif
}
}
if (status != BTA_HH_OK)
{
utl_freebuf((void **)&bta_hh_cb.p_disc_db);
/* send SDP_CMPL_EVT into state machine */
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
}
return;
}
/*******************************************************************************
**
** Function bta_hh_start_sdp
**
** Description Start SDP service search, and obtain necessary SDP records.
** Only one SDP service search request is allowed at the same
** time. For every BTA_HhOpen API call, do SDP first unless SDP
** has been done previously.
**
** Returns void
**
*******************************************************************************/
void bta_hh_start_sdp(tBTA_HH_DEV_CB *p_cb, tBTA_HH_DATA *p_data)
{
tBTA_HH_STATUS status = BTA_HH_ERR_SDP;
UINT8 hdl;
p_cb->sec_mask = p_data->api_conn.sec_mask;
p_cb->mode = p_data->api_conn.mode;
bta_hh_cb.p_cur = p_cb;
#if (BTA_HH_LE_INCLUDED == TRUE)
if (bta_hh_is_le_device(p_cb, p_data->api_conn.bd_addr))
{
bta_hh_le_open_conn(p_cb, p_data->api_conn.bd_addr);
return;
}
#endif
/* if previously virtually cabled device, skip SDP */
if (p_cb->app_id)
{
status = BTA_HH_OK;
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG("bta_hh_start_sdp:: skip SDP for known devices");
#endif
if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
{
if (HID_HostAddDev (p_cb->addr, p_cb->attr_mask, &hdl) \
== HID_SUCCESS)
{
/* update device CB with newly register device handle */
bta_hh_add_device_to_list(p_cb, hdl, p_cb->attr_mask, NULL,
p_cb->sub_class,
p_cb->dscp_info.ssr_max_latency,
p_cb->dscp_info.ssr_min_tout,
p_cb->app_id);
/* update cb_index[] map */
bta_hh_cb.cb_index[hdl] = p_cb->index;
}
else
status = BTA_HH_ERR_NO_RES;
}
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
return;
}
/* GetSDPRecord. at one time only one SDP precedure can be active */
else if (!bta_hh_cb.p_disc_db)
{
bta_hh_cb.p_disc_db = (tSDP_DISCOVERY_DB *) GKI_getbuf(p_bta_hh_cfg->sdp_db_size);
if (bta_hh_cb.p_disc_db == NULL)
{
status = BTA_HH_ERR_NO_RES;
}
else
{
bta_hh_cb.p_cur = p_cb;
/* do DI discovery first */
if (SDP_DiDiscover(p_data->api_conn.bd_addr,
bta_hh_cb.p_disc_db,
p_bta_hh_cfg->sdp_db_size,
bta_hh_di_sdp_cback) != SDP_SUCCESS)
{
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG ("bta_hh_start_sdp: SDP_DiDiscover failed: \
Status 0x%2X",status);
#endif
status = BTA_HH_ERR_SDP;
utl_freebuf((void **)&bta_hh_cb.p_disc_db);
}
else
/*******************************************************************************
**
** Function bta_hh_sdp_cback
**
** Description SDP callback function.
**
** Returns void
**
*******************************************************************************/
static void bta_hh_sdp_cback(UINT16 result, UINT16 attr_mask,
tHID_DEV_SDP_INFO *sdp_rec )
{
tBTA_HH_DEV_CB *p_cb = bta_hh_cb.p_cur;
UINT8 hdl = 0;
tBTA_HH_STATUS status = BTA_HH_ERR_SDP;
/* make sure sdp succeeded and hh has not been disabled */
if ((result == SDP_SUCCESS) && (p_cb != NULL))
{
/* security is required for the connection, add attr_mask bit*/
if (p_cb->sec_mask)
attr_mask |= HID_SEC_REQUIRED;
#if BTA_HH_DEBUG
APPL_TRACE_EVENT("bta_hh_sdp_cback: p_cb: %d result 0x%02x, \
attr_mask 0x%02x, handle %x", \
p_cb, result, attr_mask,p_cb->hid_handle);
#endif
/* check to see type of device is supported , and should not been added before */
if (bta_hh_tod_spt(p_cb, sdp_rec->sub_class))
{
/* if not added before */
if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE)
{
/* add device/update attr_mask information */
if(HID_HostAddDev (p_cb->addr, attr_mask, &hdl) == HID_SUCCESS)
{
status = BTA_HH_OK;
/* update cb_index[] map */
bta_hh_cb.cb_index[hdl] = p_cb->index;
}
else
{
p_cb->app_id = 0;
}
}
else
{
hdl = p_cb->hid_handle;
}
/* else : incoming connection after SDP should update the SDP information as well */
if (p_cb->app_id != 0)
{
/* update cb information with attr_mask, dscp_info etc. */
bta_hh_add_device_to_list(p_cb, hdl, attr_mask,
&sdp_rec->dscp_info,
sdp_rec->sub_class,
sdp_rec->ssr_max_latency,
sdp_rec->ssr_min_tout,
p_cb->app_id);
p_cb->dscp_info.ctry_code = sdp_rec->ctry_code;
status = BTA_HH_OK;
}
}
else /* type of device is not supported */
status = BTA_HH_ERR_TOD_UNSPT;
}
/* free disc_db when SDP is completed */
utl_freebuf((void **)&bta_hh_cb.p_disc_db);
/* send SDP_CMPL_EVT into state machine */
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA *)&status);
return;
}
