diff options
Diffstat (limited to 'bta/hh/bta_hh_main.c')
| -rw-r--r-- | bta/hh/bta_hh_main.c | 72 |
1 files changed, 42 insertions, 30 deletions
diff --git a/bta/hh/bta_hh_main.c b/bta/hh/bta_hh_main.c index 648b10f..a1d0ad2 100644 --- a/bta/hh/bta_hh_main.c +++ b/bta/hh/bta_hh_main.c @@ -1,14 +1,26 @@ -/***************************************************************************** -** -** Name: bta_hh_main.c -** -** Description: This file contains the HID host main functions and state -** machine. -** -** Copyright (c) 2005, Broadcom Corp, All Rights Reserved. -** Widcomm Bluetooth Core. Proprietary and confidential. -** -*****************************************************************************/ +/****************************************************************************** + * + * Copyright (C) 2005-2012 Broadcom Corporation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ******************************************************************************/ + +/****************************************************************************** + * + * This file contains the HID host main functions and state machine. + * + ******************************************************************************/ #include "bt_target.h" @@ -79,13 +91,13 @@ const UINT8 bta_hh_st_idle[][BTA_HH_NUM_COLS] = /* BTA_HH_INT_CLOSE_EVT */ {BTA_HH_CLOSE_ACT, BTA_HH_IDLE_ST }, /* BTA_HH_INT_DATA_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, /* BTA_HH_INT_CTRL_DATA */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, -/* BTA_HH_INT_HANDSK_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, +/* BTA_HH_INT_HANDSK_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, /* BTA_HH_SDP_CMPL_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, /* BTA_HH_API_WRITE_DEV_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, /* BTA_HH_API_GET_DSCP_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST }, /* BTA_HH_API_MAINT_DEV_EVT */ {BTA_HH_MAINT_DEV_ACT, BTA_HH_IDLE_ST }, /* BTA_HH_OPEN_CMPL_EVT */ {BTA_HH_IGNORE, BTA_HH_IDLE_ST } - + }; @@ -98,7 +110,7 @@ const UINT8 bta_hh_st_w4_conn[][BTA_HH_NUM_COLS] = /* BTA_HH_INT_CLOSE_EVT */ {BTA_HH_CLOSE_ACT, BTA_HH_IDLE_ST }, /* BTA_HH_INT_DATA_EVT */ {BTA_HH_IGNORE, BTA_HH_W4_CONN_ST }, /* BTA_HH_INT_CTRL_DATA */ {BTA_HH_IGNORE, BTA_HH_W4_CONN_ST }, -/* BTA_HH_INT_HANDSK_EVT */ {BTA_HH_IGNORE, BTA_HH_W4_CONN_ST }, +/* BTA_HH_INT_HANDSK_EVT */ {BTA_HH_IGNORE, BTA_HH_W4_CONN_ST }, /* BTA_HH_SDP_CMPL_EVT */ {BTA_HH_SDP_CMPL, BTA_HH_W4_CONN_ST }, /* BTA_HH_API_WRITE_DEV_EVT */ {BTA_HH_IGNORE , BTA_HH_W4_CONN_ST }, /* BTA_HH_API_GET_DSCP_EVT */ {BTA_HH_IGNORE, BTA_HH_W4_CONN_ST }, @@ -116,7 +128,7 @@ const UINT8 bta_hh_st_connected[][BTA_HH_NUM_COLS] = /* BTA_HH_INT_CLOSE_EVT */ {BTA_HH_CLOSE_ACT, BTA_HH_IDLE_ST }, /* BTA_HH_INT_DATA_EVT */ {BTA_HH_DATA_ACT, BTA_HH_CONN_ST }, /* BTA_HH_INT_CTRL_DATA */ {BTA_HH_CTRL_DAT_ACT, BTA_HH_CONN_ST }, -/* BTA_HH_INT_HANDSK_EVT */ {BTA_HH_HANDSK_ACT, BTA_HH_CONN_ST }, +/* BTA_HH_INT_HANDSK_EVT */ {BTA_HH_HANDSK_ACT, BTA_HH_CONN_ST }, /* BTA_HH_SDP_CMPL_EVT */ {BTA_HH_IGNORE, BTA_HH_CONN_ST }, /* BTA_HH_API_WRITE_DEV_EVT */ {BTA_HH_WRITE_DEV_ACT, BTA_HH_CONN_ST }, /* BTA_HH_API_GET_DSCP_EVT */ {BTA_HH_GET_DSCP_ACT, BTA_HH_CONN_ST }, @@ -154,7 +166,7 @@ static char *bta_hh_state_code(tBTA_HH_STATE state_code); ** Function bta_hh_sm_execute ** ** Description State machine event handling function for HID Host -** +** ** ** Returns void ** @@ -173,7 +185,7 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data memset(&cback_data, 0, sizeof(tBTA_HH)); /* handle exception, no valid control block was found */ - if (!p_cb) + if (!p_cb) { /* BTA HH enabled already? otherwise ignore the event although it's bad*/ if (bta_hh_cb.p_cback != NULL) @@ -181,7 +193,7 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data switch (event) { /* no control block available for new connection */ - case BTA_HH_API_OPEN_EVT: + case BTA_HH_API_OPEN_EVT: cback_event = BTA_HH_OPEN_EVT; /* build cback data */ bdcpy(cback_data.conn.bda, ((tBTA_HH_API_CONN *)p_data)->bd_addr); @@ -192,7 +204,7 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data case BTA_HH_API_MAINT_DEV_EVT: cback_event = p_data->api_maintdev.sub_event; - if (p_data->api_maintdev.sub_event == BTA_HH_ADD_DEV_EVT) + if (p_data->api_maintdev.sub_event == BTA_HH_ADD_DEV_EVT) { bdcpy(cback_data.dev_info.bda, p_data->api_maintdev.bda); cback_data.dev_info.status = BTA_HH_ERR_DB_FULL; @@ -223,7 +235,7 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data } break; - case BTA_HH_API_CLOSE_EVT: + case BTA_HH_API_CLOSE_EVT: cback_event = BTA_HH_CLOSE_EVT; cback_data.dev_status.status = BTA_HH_ERR_HDL; @@ -240,7 +252,7 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data } } /* corresponding CB is found, go to state machine */ - else + else { #if BTA_HH_DEBUG == TRUE in_state = p_cb->state; @@ -254,7 +266,7 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data event &= 0xff; p_cb->state = state_table[event][BTA_HH_NEXT_STATE] ; - + if ((action = state_table[event][BTA_HH_ACTION]) != BTA_HH_IGNORE) { (*bta_hh_action[action])(p_cb, p_data); @@ -271,14 +283,14 @@ void bta_hh_sm_execute(tBTA_HH_DEV_CB *p_cb, UINT16 event, tBTA_HH_DATA * p_data #endif } - return; + return; } /******************************************************************************* ** ** Function bta_hh_hdl_event ** ** Description HID host main event handling function. -** +** ** ** Returns void ** @@ -287,7 +299,7 @@ BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg) { UINT8 index = BTA_HH_MAX_KNOWN; tBTA_HH_DEV_CB *p_cb = NULL; - + switch (p_msg->event) { case BTA_HH_API_ENABLE_EVT: @@ -302,8 +314,8 @@ BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg) bta_hh_disc_cmpl(); break; - default: - /* all events processed in state machine need to find corresponding + default: + /* all events processed in state machine need to find corresponding CB before proceed */ if (p_msg->event == BTA_HH_API_OPEN_EVT) { @@ -322,8 +334,8 @@ BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg) // 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 + * 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 MAX_KNOWN */ if (bta_hh_cb.kdev[index].in_use == FALSE) { @@ -354,7 +366,7 @@ BOOLEAN bta_hh_hdl_event(BT_HDR *p_msg) ** ** Function bta_hh_evt_code ** -** Description +** Description ** ** Returns void ** |