/******************************************************************************
*
* Copyright 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 action functions.
*
******************************************************************************/
#include "bt_target.h"
#if (BTA_HH_INCLUDED == TRUE)
#include <log/log.h>
#include <string.h>
#include "bta_hh_co.h"
#include "bta_hh_int.h"
#include "bta_sys.h"
#include "btm_api.h"
#include "l2c_api.h"
#include "osi/include/osi.h"
#include "utl.h"
/*****************************************************************************
* Constants
****************************************************************************/
/*****************************************************************************
* Local Function prototypes
****************************************************************************/
static void bta_hh_cback(uint8_t dev_handle, const RawAddress& addr,
uint8_t event, uint32_t data, BT_HDR* pdata);
static tBTA_HH_STATUS bta_hh_get_trans_status(uint32_t result);
#if (BTA_HH_DEBUG == TRUE)
static const char* bta_hh_get_w4_event(uint16_t event);
static const char* bta_hh_hid_event_name(uint16_t event);
#endif
/*****************************************************************************
* Action Functions
****************************************************************************/
/*******************************************************************************
*
* Function bta_hh_api_enable
*
* Description Perform necessary operations to enable HID host.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_api_enable(tBTA_HH_DATA* p_data) {
tBTA_HH_STATUS status = BTA_HH_ERR;
uint8_t xx;
/* initialize BTE HID */
HID_HostInit();
memset(&bta_hh_cb, 0, sizeof(tBTA_HH_CB));
HID_HostSetSecurityLevel("", p_data->api_enable.sec_mask);
/* Register with L2CAP */
if (HID_HostRegister(bta_hh_cback) == HID_SUCCESS) {
/* store parameters */
bta_hh_cb.p_cback = p_data->api_enable.p_cback;
status = BTA_HH_OK;
/* initialize device CB */
for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++) {
bta_hh_cb.kdev[xx].state = BTA_HH_IDLE_ST;
bta_hh_cb.kdev[xx].hid_handle = BTA_HH_INVALID_HANDLE;
bta_hh_cb.kdev[xx].index = xx;
}
/* initialize control block map */
for (xx = 0; xx < BTA_HH_MAX_KNOWN; xx++)
bta_hh_cb.cb_index[xx] = BTA_HH_IDX_INVALID;
}
#if (BTA_HH_LE_INCLUDED == TRUE)
if (status == BTA_HH_OK) {
bta_hh_le_enable();
} else
#endif
{
/* signal BTA call back event */
tBTA_HH bta_hh;
bta_hh.status = status;
(*bta_hh_cb.p_cback)(BTA_HH_ENABLE_EVT, &bta_hh);
}
}
/*******************************************************************************
*
* Function bta_hh_api_disable
*
* Description Perform necessary operations to disable HID host.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_api_disable(void) {
uint8_t 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_disc_cmpl
*
* Description All connections have been closed, disable service.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_disc_cmpl(void) {
#if (BTA_HH_LE_INCLUDED == TRUE)
HID_HostDeregister();
bta_hh_le_deregister();
#else
tBTA_HH_STATUS status = BTA_HH_OK;
/* Deregister with lower layer */
if (HID_HostDeregister() != HID_SUCCESS) status = BTA_HH_ERR;
bta_hh_cleanup_disable(status);
#endif
}
/*******************************************************************************
*
* Function bta_hh_sdp_cback
*
* Description SDP callback function.
*
* Returns void
*
******************************************************************************/
static void bta_hh_sdp_cback(uint16_t result, uint16_t attr_mask,
tHID_DEV_SDP_INFO* sdp_rec) {
tBTA_HH_DEV_CB* p_cb = bta_hh_cb.p_cur;
uint8_t 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 == TRUE)
APPL_TRACE_EVENT("%s: p_cb: %d result 0x%02x, attr_mask 0x%02x, handle %x",
__func__, 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 */
osi_free_and_reset((void**)&bta_hh_cb.p_disc_db);
/* send SDP_CMPL_EVT into state machine */
tBTA_HH_DATA bta_hh_data;
bta_hh_data.status = status;
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, &bta_hh_data);
return;
}
/*******************************************************************************
*
* Function bta_hh_di_sdp_cback
*
* Description SDP DI callback function.
*
* Returns void
*
******************************************************************************/
static void bta_hh_di_sdp_cback(uint16_t 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 == TRUE)
APPL_TRACE_EVENT("%s: p_cb: %d result 0x%02x", __func__, 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);
}
ret = HID_HostGetSDPRecord(p_cb->addr, bta_hh_cb.p_disc_db,
p_bta_hh_cfg->sdp_db_size, bta_hh_sdp_cback);
if (ret == HID_SUCCESS) {
status = BTA_HH_OK;
} else {
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: HID_HostGetSDPRecord failed: Status 0x%2x",
__func__, ret);
#endif
}
}
if (status != BTA_HH_OK) {
osi_free_and_reset((void**)&bta_hh_cb.p_disc_db);
/* send SDP_CMPL_EVT into state machine */
tBTA_HH_DATA bta_hh_data;
bta_hh_data.status = status;
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, &bta_hh_data);
}
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_t 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 == TRUE)
APPL_TRACE_DEBUG("%s: skip SDP for known devices", __func__);
#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;
}
tBTA_HH_DATA bta_hh_data;
bta_hh_data.status = status;
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, &bta_hh_data);
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*)osi_malloc(p_bta_hh_cfg->sdp_db_size);
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 == TRUE)
APPL_TRACE_DEBUG("%s: SDP_DiDiscover failed: Status 0x%2X", __func__,
status);
#endif
status = BTA_HH_ERR_SDP;
osi_free_and_reset((void**)&bta_hh_cb.p_disc_db);
} else {
status = BTA_HH_OK;
}
} else if (bta_hh_cb.p_disc_db) {
/* It is possible that there is incoming/outgoing collision case. DUT
* initiated
* HID connection at same time remote has connected L2CAP for HID control,
* so SDP would be in progress, when this flow reaches here. Just do nothing
* when the code reaches here, and ongoing SDP completion or failure will
* handle this case.
*/
APPL_TRACE_DEBUG("%s: ignoring as SDP already in progress", __func__);
return;
}
if (status != BTA_HH_OK) {
tBTA_HH_DATA bta_hh_data;
bta_hh_data.status = status;
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, &bta_hh_data);
}
return;
}
/*******************************************************************************
*
* Function bta_hh_sdp_cmpl
*
* Description When SDP completes, initiate a connection or report an error
* depending on the SDP result.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_sdp_cmpl(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CONN conn_dat;
tBTA_HH_STATUS status = p_data->status;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: status 0x%2X", __func__, p_data->status);
#endif
/* initialize call back data */
memset((void*)&conn_dat, 0, sizeof(tBTA_HH_CONN));
conn_dat.handle = p_cb->hid_handle;
conn_dat.bda = p_cb->addr;
/* if SDP compl success */
if (status == BTA_HH_OK) {
/* not incoming connection doing SDP, initiate a HID connection */
if (!p_cb->incoming_conn) {
tHID_STATUS ret;
/* set security level */
HID_HostSetSecurityLevel("", p_cb->sec_mask);
/* open HID connection */
ret = HID_HostOpenDev(p_cb->hid_handle);
APPL_TRACE_DEBUG("%s: HID_HostOpenDev returned=%d", __func__, ret);
if (ret == HID_SUCCESS || ret == HID_ERR_ALREADY_CONN) {
status = BTA_HH_OK;
} else if (ret == HID_ERR_CONN_IN_PROCESS) {
/* Connection already in progress, return from here, SDP
* will be performed after connection is completed.
*/
APPL_TRACE_DEBUG("%s: connection already in progress", __func__);
return;
} else {
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: HID_HostOpenDev failed: Status 0x%2X", __func__,
ret);
#endif
/* open fail, remove device from management device list */
HID_HostRemoveDev(p_cb->hid_handle);
status = BTA_HH_ERR;
}
} else /* incoming connection SDP finish */
{
bta_hh_sm_execute(p_cb, BTA_HH_OPEN_CMPL_EVT, NULL);
}
}
if (status != BTA_HH_OK) {
/* Check if this was incoming connection request from an unknown device
* and connection failed due to missing HID Device SDP UUID
* In above condition, disconnect the link as well as remove the
* device from list of HID devices
*/
if ((status == BTA_HH_ERR_SDP) && (p_cb->incoming_conn) &&
(p_cb->app_id == 0)) {
APPL_TRACE_DEBUG("%s: SDP failed for incoming conn :hndl %d", __func__,
p_cb->incoming_hid_handle);
HID_HostRemoveDev(p_cb->incoming_hid_handle);
}
conn_dat.status = status;
(*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH*)&conn_dat);
/* move state machine W4_CONN ->IDLE */
bta_hh_sm_execute(p_cb, BTA_HH_API_CLOSE_EVT, NULL);
/* if this is an outgoing connection to an unknown device, clean up cb */
if (p_cb->app_id == 0 && !p_cb->incoming_conn) {
/* clean up device control block */
bta_hh_clean_up_kdev(p_cb);
}
#if (BTA_HH_DEBUG == TRUE)
bta_hh_trace_dev_db();
#endif
}
return;
}
/*******************************************************************************
*
* Function bta_hh_api_disc_act
*
* Description HID Host initiate a disconnection.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_api_disc_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CBDATA disc_dat;
tHID_STATUS status;
#if (BTA_HH_LE_INCLUDED == TRUE)
if (p_cb->is_le_device)
bta_hh_le_api_disc_act(p_cb);
else
#endif
{
/* found an active connection */
disc_dat.handle =
p_data ? (uint8_t)p_data->hdr.layer_specific : p_cb->hid_handle;
disc_dat.status = BTA_HH_ERR;
status = HID_HostCloseDev(disc_dat.handle);
if (status) {
tBTA_HH bta_hh;
bta_hh.dev_status = disc_dat;
(*bta_hh_cb.p_cback)(BTA_HH_CLOSE_EVT, &bta_hh);
}
}
return;
}
/*******************************************************************************
*
* Function bta_hh_open_cmpl_act
*
* Description HID host connection completed
*
*
* Returns void
*
******************************************************************************/
void bta_hh_open_cmpl_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CONN conn;
uint8_t dev_handle =
p_data ? (uint8_t)p_data->hid_cback.hdr.layer_specific : p_cb->hid_handle;
memset((void*)&conn, 0, sizeof(tBTA_HH_CONN));
conn.handle = dev_handle;
conn.bda = p_cb->addr;
/* increase connection number */
bta_hh_cb.cnt_num++;
/* initialize device driver */
bta_hh_co_open(p_cb->hid_handle, p_cb->sub_class, p_cb->attr_mask,
p_cb->app_id);
#if (BTA_HH_LE_INCLUDED == TRUE)
conn.status = p_cb->status;
conn.le_hid = p_cb->is_le_device;
conn.scps_supported = p_cb->scps_supported;
if (!p_cb->is_le_device)
#endif
{
/* inform role manager */
bta_sys_conn_open(BTA_ID_HH, p_cb->app_id, p_cb->addr);
}
/* set protocol mode when not default report mode */
if (p_cb->mode != BTA_HH_PROTO_RPT_MODE
#if (BTA_HH_LE_INCLUDED == TRUE)
&& !p_cb->is_le_device
#endif
) {
if ((HID_HostWriteDev(dev_handle, HID_TRANS_SET_PROTOCOL,
HID_PAR_PROTOCOL_BOOT_MODE, 0, 0, NULL)) !=
HID_SUCCESS) {
/* HID connection is up, while SET_PROTO fail */
conn.status = BTA_HH_ERR_PROTO;
(*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH*)&conn);
} else {
conn.status = BTA_HH_OK;
p_cb->w4_evt = BTA_HH_OPEN_EVT;
}
} else
(*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH*)&conn);
p_cb->incoming_conn = false;
p_cb->incoming_hid_handle = BTA_HH_INVALID_HANDLE;
}
/*******************************************************************************
*
* Function bta_hh_open_act
*
* Description HID host receive HID_OPEN_EVT .
*
*
* Returns void
*
******************************************************************************/
void bta_hh_open_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_API_CONN conn_data;
uint8_t dev_handle =
p_data ? (uint8_t)p_data->hid_cback.hdr.layer_specific : p_cb->hid_handle;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_EVENT("%s: Device[%d] connected", __func__, dev_handle);
#endif
/* SDP has been done */
if (p_cb->app_id != 0) {
bta_hh_sm_execute(p_cb, BTA_HH_OPEN_CMPL_EVT, p_data);
} else
/* app_id == 0 indicates an incoming conenction request arrives without SDP
* performed, do it first
*/
{
p_cb->incoming_conn = true;
/* store the handle here in case sdp fails - need to disconnect */
p_cb->incoming_hid_handle = dev_handle;
memset(&conn_data, 0, sizeof(tBTA_HH_API_CONN));
conn_data.bd_addr = p_cb->addr;
bta_hh_start_sdp(p_cb, (tBTA_HH_DATA*)&conn_data);
}
return;
}
/*******************************************************************************
*
* Function bta_hh_data_act
*
* Description HID Host process a data report
*
*
* Returns void
*
******************************************************************************/
void bta_hh_data_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
BT_HDR* pdata = p_data->hid_cback.p_data;
uint8_t* p_rpt = (uint8_t*)(pdata + 1) + pdata->offset;
bta_hh_co_data((uint8_t)p_data->hid_cback.hdr.layer_specific, p_rpt,
pdata->len, p_cb->mode, p_cb->sub_class,
p_cb->dscp_info.ctry_code, p_cb->addr, p_cb->app_id);
osi_free_and_reset((void**)&pdata);
}
/*******************************************************************************
*
* Function bta_hh_handsk_act
*
* Description HID Host process a handshake acknowledgement.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_handsk_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("HANDSHAKE received for: event = %s data= %d",
bta_hh_get_w4_event(p_cb->w4_evt), p_data->hid_cback.data);
#endif
tBTA_HH bta_hh;
memset(&bta_hh, 0, sizeof(tBTA_HH));
switch (p_cb->w4_evt) {
/* GET_ transsaction, handshake indicate unsupported request */
case BTA_HH_GET_PROTO_EVT:
bta_hh.hs_data.rsp_data.proto_mode = BTA_HH_PROTO_UNKNOWN;
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case BTA_HH_GET_RPT_EVT:
case BTA_HH_GET_IDLE_EVT:
bta_hh.hs_data.handle = p_cb->hid_handle;
/* if handshake gives an OK code for these transaction, fill in UNSUPT */
bta_hh.hs_data.status = bta_hh_get_trans_status(p_data->hid_cback.data);
if (bta_hh.hs_data.status == BTA_HH_OK)
bta_hh.hs_data.status = BTA_HH_HS_TRANS_NOT_SPT;
if (p_cb->w4_evt == BTA_HH_GET_RPT_EVT)
bta_hh_co_get_rpt_rsp(bta_hh.dev_status.handle, bta_hh.hs_data.status,
NULL, 0);
(*bta_hh_cb.p_cback)(p_cb->w4_evt, &bta_hh);
p_cb->w4_evt = 0;
break;
/* acknoledgement from HID device for SET_ transaction */
case BTA_HH_SET_RPT_EVT:
case BTA_HH_SET_PROTO_EVT:
case BTA_HH_SET_IDLE_EVT:
bta_hh.dev_status.handle = p_cb->hid_handle;
bta_hh.dev_status.status =
bta_hh_get_trans_status(p_data->hid_cback.data);
if (p_cb->w4_evt == BTA_HH_SET_RPT_EVT)
bta_hh_co_set_rpt_rsp(bta_hh.dev_status.handle,
bta_hh.dev_status.status);
(*bta_hh_cb.p_cback)(p_cb->w4_evt, &bta_hh);
p_cb->w4_evt = 0;
break;
/* SET_PROTOCOL when open connection */
case BTA_HH_OPEN_EVT:
bta_hh.conn.status =
p_data->hid_cback.data ? BTA_HH_ERR_PROTO : BTA_HH_OK;
bta_hh.conn.handle = p_cb->hid_handle;
bta_hh.conn.bda = p_cb->addr;
(*bta_hh_cb.p_cback)(p_cb->w4_evt, &bta_hh);
#if (BTA_HH_DEBUG == TRUE)
bta_hh_trace_dev_db();
#endif
p_cb->w4_evt = 0;
break;
default:
/* unknow transaction handshake response */
APPL_TRACE_DEBUG("unknown transaction type");
break;
}
/* transaction achknoledgement received, inform PM for mode change */
bta_sys_idle(BTA_ID_HH, p_cb->app_id, p_cb->addr);
return;
}
/*******************************************************************************
*
* Function bta_hh_ctrl_dat_act
*
* Description HID Host process a data report from control channel.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_ctrl_dat_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
BT_HDR* pdata = p_data->hid_cback.p_data;
uint8_t* data = (uint8_t*)(pdata + 1) + pdata->offset;
tBTA_HH_HSDATA hs_data;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("Ctrl DATA received w4: event[%s]",
bta_hh_get_w4_event(p_cb->w4_evt));
#endif
if (pdata->len == 0) {
android_errorWriteLog(0x534e4554, "116108738");
p_cb->w4_evt = 0;
osi_free_and_reset((void**)&pdata);
return;
}
hs_data.status = BTA_HH_OK;
hs_data.handle = p_cb->hid_handle;
switch (p_cb->w4_evt) {
case BTA_HH_GET_IDLE_EVT:
hs_data.rsp_data.idle_rate = *data;
break;
case BTA_HH_GET_RPT_EVT:
hs_data.rsp_data.p_rpt_data = pdata;
bta_hh_co_get_rpt_rsp(hs_data.handle, hs_data.status, pdata->data,
pdata->len);
break;
case BTA_HH_GET_PROTO_EVT:
/* match up BTE/BTA report/boot mode def*/
hs_data.rsp_data.proto_mode = ((*data) == HID_PAR_PROTOCOL_REPORT)
? BTA_HH_PROTO_RPT_MODE
: BTA_HH_PROTO_BOOT_MODE;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("GET_PROTOCOL Mode = [%s]",
(hs_data.rsp_data.proto_mode == BTA_HH_PROTO_RPT_MODE)
? "Report"
: "Boot");
#endif
break;
/* should not expect control DATA for SET_ transaction */
case BTA_HH_SET_PROTO_EVT:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case BTA_HH_SET_RPT_EVT:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case BTA_HH_SET_IDLE_EVT:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
default:
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("invalid transaction type for DATA payload: 4_evt[%s]",
bta_hh_get_w4_event(p_cb->w4_evt));
#endif
break;
}
/* inform PM for mode change */
bta_sys_busy(BTA_ID_HH, p_cb->app_id, p_cb->addr);
bta_sys_idle(BTA_ID_HH, p_cb->app_id, p_cb->addr);
(*bta_hh_cb.p_cback)(p_cb->w4_evt, (tBTA_HH*)&hs_data);
p_cb->w4_evt = 0;
osi_free_and_reset((void**)&pdata);
}
/*******************************************************************************
*
* Function bta_hh_open_failure
*
* Description report HID open failure when at wait for connection state
* and receive device close event.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_open_failure(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CONN conn_dat;
uint32_t reason = p_data->hid_cback.data; /* Reason for closing (32-bit) */
memset(&conn_dat, 0, sizeof(tBTA_HH_CONN));
conn_dat.handle = p_cb->hid_handle;
conn_dat.status =
(reason == HID_ERR_AUTH_FAILED) ? BTA_HH_ERR_AUTH_FAILED : BTA_HH_ERR;
conn_dat.bda = p_cb->addr;
HID_HostCloseDev(p_cb->hid_handle);
/* Report OPEN fail event */
(*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH*)&conn_dat);
#if (BTA_HH_DEBUG == TRUE)
bta_hh_trace_dev_db();
#endif
/* clean up control block, but retain SDP info and device handle */
p_cb->vp = false;
p_cb->w4_evt = 0;
/* if no connection is active and HH disable is signaled, disable service */
if (bta_hh_cb.cnt_num == 0 && bta_hh_cb.w4_disable) {
bta_hh_disc_cmpl();
}
/* Error in opening hid connection, reset flags */
p_cb->incoming_conn = false;
p_cb->incoming_hid_handle = BTA_HH_INVALID_HANDLE;
}
/*******************************************************************************
*
* Function bta_hh_close_act
*
* Description HID Host process a close event
*
*
* Returns void
*
******************************************************************************/
void bta_hh_close_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CONN conn_dat;
tBTA_HH_CBDATA disc_dat = {BTA_HH_OK, 0};
uint32_t reason = p_data->hid_cback.data; /* Reason for closing (32-bit) */
/* if HID_HDEV_EVT_VC_UNPLUG was received, report BTA_HH_VC_UNPLUG_EVT */
uint16_t event = p_cb->vp ? BTA_HH_VC_UNPLUG_EVT : BTA_HH_CLOSE_EVT;
disc_dat.handle = p_cb->hid_handle;
disc_dat.status = p_data->hid_cback.data;
/* Check reason for closing */
if ((reason & (HID_L2CAP_CONN_FAIL |
HID_L2CAP_REQ_FAIL)) || /* Failure to initialize connection
(page timeout or l2cap error) */
(reason ==
HID_ERR_AUTH_FAILED) || /* Authenication error (while initiating) */
(reason == HID_ERR_L2CAP_FAILED)) /* Failure creating l2cap connection */
{
/* Failure in opening connection */
conn_dat.handle = p_cb->hid_handle;
conn_dat.status =
(reason == HID_ERR_AUTH_FAILED) ? BTA_HH_ERR_AUTH_FAILED : BTA_HH_ERR;
conn_dat.bda = p_cb->addr;
HID_HostCloseDev(p_cb->hid_handle);
/* Report OPEN fail event */
(*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH*)&conn_dat);
#if (BTA_HH_DEBUG == TRUE)
bta_hh_trace_dev_db();
#endif
return;
}
/* otherwise report CLOSE/VC_UNPLUG event */
else {
/* finaliza device driver */
bta_hh_co_close(p_cb->hid_handle, p_cb->app_id);
/* inform role manager */
bta_sys_conn_close(BTA_ID_HH, p_cb->app_id, p_cb->addr);
/* update total conn number */
bta_hh_cb.cnt_num--;
if (disc_dat.status) disc_dat.status = BTA_HH_ERR;
(*bta_hh_cb.p_cback)(event, (tBTA_HH*)&disc_dat);
/* if virtually unplug, remove device */
if (p_cb->vp) {
HID_HostRemoveDev(p_cb->hid_handle);
bta_hh_clean_up_kdev(p_cb);
}
#if (BTA_HH_DEBUG == TRUE)
bta_hh_trace_dev_db();
#endif
}
/* clean up control block, but retain SDP info and device handle */
p_cb->vp = false;
p_cb->w4_evt = 0;
/* if no connection is active and HH disable is signaled, disable service */
if (bta_hh_cb.cnt_num == 0 && bta_hh_cb.w4_disable) {
bta_hh_disc_cmpl();
}
return;
}
/*******************************************************************************
*
* Function bta_hh_get_dscp_act
*
* Description Get device report descriptor
*
*
* Returns void
*
******************************************************************************/
void bta_hh_get_dscp_act(tBTA_HH_DEV_CB* p_cb,
UNUSED_ATTR tBTA_HH_DATA* p_data) {
#if (BTA_HH_LE_INCLUDED == TRUE)
if (p_cb->is_le_device) {
bta_hh_le_get_dscp_act(p_cb);
} else
#endif
(*bta_hh_cb.p_cback)(BTA_HH_GET_DSCP_EVT, (tBTA_HH*)&p_cb->dscp_info);
}
/*******************************************************************************
*
* Function bta_hh_maint_dev_act
*
* Description HID Host maintain device list.
*
*
* Returns void
*
******************************************************************************/
void bta_hh_maint_dev_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_MAINT_DEV* p_dev_info = &p_data->api_maintdev;
tBTA_HH_DEV_INFO dev_info;
uint8_t dev_handle;
dev_info.status = BTA_HH_ERR;
dev_info.handle = BTA_HH_INVALID_HANDLE;
switch (p_dev_info->sub_event) {
case BTA_HH_ADD_DEV_EVT: /* add a device */
dev_info.bda = p_dev_info->bda;
/* initialize callback data */
if (p_cb->hid_handle == BTA_HH_INVALID_HANDLE) {
#if (BTA_HH_LE_INCLUDED == TRUE)
if (bta_hh_is_le_device(p_cb, p_data->api_conn.bd_addr)) {
dev_info.handle = bta_hh_le_add_device(p_cb, p_dev_info);
if (dev_info.handle != BTA_HH_INVALID_HANDLE)
dev_info.status = BTA_HH_OK;
} else
#endif
if (HID_HostAddDev(p_dev_info->bda, p_dev_info->attr_mask,
&dev_handle) == HID_SUCCESS) {
dev_info.handle = dev_handle;
dev_info.status = BTA_HH_OK;
#if (BTA_HH_LE_INCLUDED == TRUE)
/* update DI information */
bta_hh_update_di_info(p_cb, p_dev_info->dscp_info.vendor_id,
p_dev_info->dscp_info.product_id,
p_dev_info->dscp_info.version,
p_dev_info->dscp_info.flag);
#else
bta_hh_update_di_info(p_cb, p_dev_info->dscp_info.vendor_id,
p_dev_info->dscp_info.product_id,
p_dev_info->dscp_info.version, 0);
#endif
/* add to BTA device list */
bta_hh_add_device_to_list(
p_cb, dev_handle, p_dev_info->attr_mask,
&p_dev_info->dscp_info.descriptor, p_dev_info->sub_class,
p_dev_info->dscp_info.ssr_max_latency,
p_dev_info->dscp_info.ssr_min_tout, p_dev_info->app_id);
/* update cb_index[] map */
bta_hh_cb.cb_index[dev_handle] = p_cb->index;
}
} else /* device already been added */
{
dev_info.handle = p_cb->hid_handle;
dev_info.status = BTA_HH_OK;
}
#if (BTA_HH_DEBUG == TRUE)
bta_hh_trace_dev_db();
#endif
break;
case BTA_HH_RMV_DEV_EVT: /* remove device */
dev_info.handle = (uint8_t)p_dev_info->hdr.layer_specific;
dev_info.bda = p_cb->addr;
#if (BTA_HH_LE_INCLUDED == TRUE)
if (p_cb->is_le_device) {
bta_hh_le_remove_dev_bg_conn(p_cb);
bta_hh_sm_execute(p_cb, BTA_HH_API_CLOSE_EVT, NULL);
bta_hh_clean_up_kdev(p_cb);
} else
#endif
{
if (HID_HostRemoveDev(dev_info.handle) == HID_SUCCESS) {
dev_info.status = BTA_HH_OK;
/* remove from known device list in BTA */
bta_hh_clean_up_kdev(p_cb);
}
}
break;
default:
APPL_TRACE_DEBUG("invalid command");
break;
}
(*bta_hh_cb.p_cback)(p_dev_info->sub_event, (tBTA_HH*)&dev_info);
}
/*******************************************************************************
*
* Function bta_hh_write_dev_act
*
* Description Write device action. can be SET/GET/DATA transaction.
*
* Returns void
*
******************************************************************************/
void bta_hh_write_dev_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CBDATA cbdata = {BTA_HH_OK, 0};
uint16_t event = (p_data->api_sndcmd.t_type - BTA_HH_FST_BTE_TRANS_EVT) +
BTA_HH_FST_TRANS_CB_EVT;
#if (BTA_HH_LE_INCLUDED == TRUE)
if (p_cb->is_le_device)
bta_hh_le_write_dev_act(p_cb, p_data);
else
#endif
{
cbdata.handle = p_cb->hid_handle;
/* match up BTE/BTA report/boot mode def */
if (p_data->api_sndcmd.t_type == HID_TRANS_SET_PROTOCOL) {
p_data->api_sndcmd.param =
(p_data->api_sndcmd.param == BTA_HH_PROTO_RPT_MODE)
? HID_PAR_PROTOCOL_REPORT
: HID_PAR_PROTOCOL_BOOT_MODE;
}
if (HID_HostWriteDev(p_cb->hid_handle, p_data->api_sndcmd.t_type,
p_data->api_sndcmd.param, p_data->api_sndcmd.data,
p_data->api_sndcmd.rpt_id,
p_data->api_sndcmd.p_data) != HID_SUCCESS) {
APPL_TRACE_ERROR("HID_HostWriteDev Error ");
cbdata.status = BTA_HH_ERR;
if (p_data->api_sndcmd.t_type != HID_TRANS_CONTROL &&
p_data->api_sndcmd.t_type != HID_TRANS_DATA)
(*bta_hh_cb.p_cback)(event, (tBTA_HH*)&cbdata);
else if (p_data->api_sndcmd.param == BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG)
(*bta_hh_cb.p_cback)(BTA_HH_VC_UNPLUG_EVT, (tBTA_HH*)&cbdata);
} else {
switch (p_data->api_sndcmd.t_type) {
case HID_TRANS_SET_PROTOCOL:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case HID_TRANS_GET_REPORT:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case HID_TRANS_SET_REPORT:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case HID_TRANS_GET_PROTOCOL:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case HID_TRANS_GET_IDLE:
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case HID_TRANS_SET_IDLE: /* set w4_handsk event name for callback
function use */
p_cb->w4_evt = event;
break;
case HID_TRANS_DATA: /* output report */
FALLTHROUGH_INTENDED; /* FALLTHROUGH */
case HID_TRANS_CONTROL:
/* no handshake event will be generated */
/* if VC_UNPLUG is issued, set flag */
if (p_data->api_sndcmd.param == BTA_HH_CTRL_VIRTUAL_CABLE_UNPLUG)
p_cb->vp = true;
break;
/* currently not expected */
case HID_TRANS_DATAC:
default:
APPL_TRACE_DEBUG("%s: cmd type = %d", __func__,
p_data->api_sndcmd.t_type);
break;
}
/* if not control type transaction, notify PM for energy control */
if (p_data->api_sndcmd.t_type != HID_TRANS_CONTROL) {
/* inform PM for mode change */
bta_sys_busy(BTA_ID_HH, p_cb->app_id, p_cb->addr);
bta_sys_idle(BTA_ID_HH, p_cb->app_id, p_cb->addr);
} else if (p_data->api_sndcmd.param == BTA_HH_CTRL_SUSPEND) {
bta_sys_sco_close(BTA_ID_HH, p_cb->app_id, p_cb->addr);
} else if (p_data->api_sndcmd.param == BTA_HH_CTRL_EXIT_SUSPEND) {
bta_sys_busy(BTA_ID_HH, p_cb->app_id, p_cb->addr);
}
}
}
return;
}
/*****************************************************************************
* Static Function
****************************************************************************/
/*******************************************************************************
*
* Function bta_hh_cback
*
* Description BTA HH callback function.
*
*
* Returns void
*
******************************************************************************/
static void bta_hh_cback(uint8_t dev_handle, const RawAddress& addr,
uint8_t event, uint32_t data, BT_HDR* pdata) {
uint16_t sm_event = BTA_HH_INVALID_EVT;
uint8_t xx = 0;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s::HID_event [%s]", __func__,
bta_hh_hid_event_name(event));
#endif
switch (event) {
case HID_HDEV_EVT_OPEN:
sm_event = BTA_HH_INT_OPEN_EVT;
break;
case HID_HDEV_EVT_CLOSE:
sm_event = BTA_HH_INT_CLOSE_EVT;
break;
case HID_HDEV_EVT_INTR_DATA:
sm_event = BTA_HH_INT_DATA_EVT;
break;
case HID_HDEV_EVT_HANDSHAKE:
sm_event = BTA_HH_INT_HANDSK_EVT;
break;
case HID_HDEV_EVT_CTRL_DATA:
sm_event = BTA_HH_INT_CTRL_DATA;
break;
case HID_HDEV_EVT_RETRYING:
break;
case HID_HDEV_EVT_INTR_DATC:
case HID_HDEV_EVT_CTRL_DATC:
/* Unhandled events: Free buffer for DATAC */
osi_free_and_reset((void**)&pdata);
break;
case HID_HDEV_EVT_VC_UNPLUG:
for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++) {
if (bta_hh_cb.kdev[xx].hid_handle == dev_handle) {
bta_hh_cb.kdev[xx].vp = true;
break;
}
}
break;
}
if (sm_event != BTA_HH_INVALID_EVT) {
tBTA_HH_CBACK_DATA* p_buf = (tBTA_HH_CBACK_DATA*)osi_malloc(
sizeof(tBTA_HH_CBACK_DATA) + sizeof(BT_HDR));
p_buf->hdr.event = sm_event;
p_buf->hdr.layer_specific = (uint16_t)dev_handle;
p_buf->data = data;
p_buf->addr = addr;
p_buf->p_data = pdata;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
*
* Function bta_hh_get_trans_status
*
* Description translate a handshake result code into BTA HH
* status code
*
******************************************************************************/
static tBTA_HH_STATUS bta_hh_get_trans_status(uint32_t result) {
switch (result) {
case HID_PAR_HANDSHAKE_RSP_SUCCESS: /* (0) */
return BTA_HH_OK;
case HID_PAR_HANDSHAKE_RSP_NOT_READY: /* (1) */
case HID_PAR_HANDSHAKE_RSP_ERR_INVALID_REP_ID: /* (2) */
case HID_PAR_HANDSHAKE_RSP_ERR_UNSUPPORTED_REQ: /* (3) */
case HID_PAR_HANDSHAKE_RSP_ERR_INVALID_PARAM: /* (4) */
return (tBTA_HH_STATUS)result;
case HID_PAR_HANDSHAKE_RSP_ERR_UNKNOWN: /* (14) */
case HID_PAR_HANDSHAKE_RSP_ERR_FATAL: /* (15) */
default:
return BTA_HH_HS_ERROR;
break;
}
}
/*****************************************************************************
* Debug Functions
****************************************************************************/
#if (BTA_HH_DEBUG == TRUE)
static const char* bta_hh_get_w4_event(uint16_t event) {
switch (event) {
case BTA_HH_GET_RPT_EVT:
return "BTA_HH_GET_RPT_EVT";
case BTA_HH_SET_RPT_EVT:
return "BTA_HH_SET_RPT_EVT";
case BTA_HH_GET_PROTO_EVT:
return "BTA_HH_GET_PROTO_EVT";
case BTA_HH_SET_PROTO_EVT:
return "BTA_HH_SET_PROTO_EVT";
case BTA_HH_GET_IDLE_EVT:
return "BTA_HH_GET_IDLE_EVT";
case BTA_HH_SET_IDLE_EVT:
return "BTA_HH_SET_IDLE_EVT";
case BTA_HH_OPEN_EVT:
return "BTA_HH_OPEN_EVT";
default:
return "Unknown event";
}
}
static const char* bta_hh_hid_event_name(uint16_t event) {
switch (event) {
case HID_HDEV_EVT_OPEN:
return "HID_HDEV_EVT_OPEN";
case HID_HDEV_EVT_CLOSE:
return "HID_HDEV_EVT_CLOSE";
case HID_HDEV_EVT_RETRYING:
return "HID_HDEV_EVT_RETRYING";
case HID_HDEV_EVT_INTR_DATA:
return "HID_HDEV_EVT_INTR_DATA";
case HID_HDEV_EVT_INTR_DATC:
return "HID_HDEV_EVT_INTR_DATC";
case HID_HDEV_EVT_CTRL_DATA:
return "HID_HDEV_EVT_CTRL_DATA";
case HID_HDEV_EVT_CTRL_DATC:
return "HID_HDEV_EVT_CTRL_DATC";
case HID_HDEV_EVT_HANDSHAKE:
return "HID_HDEV_EVT_HANDSHAKE";
case HID_HDEV_EVT_VC_UNPLUG:
return "HID_HDEV_EVT_VC_UNPLUG";
default:
return "Unknown HID event";
}
}
#endif
#endif /* BTA_HH_INCLUDED */