/******************************************************************************* ** ** 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); }