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android / platform / system / bt / 2f2043f18463a5c963c138d24346870b1066e7a6 / . / bta / hh / bta_hh_le.cc
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/******************************************************************************
*
* Copyright (C) 2009-2013 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.
*
******************************************************************************/
#define LOG_TAG "bt_bta_hh"
#include "bta_api.h"
#include "bta_hh_int.h"
#include "osi/include/osi.h"
#if (BTA_HH_LE_INCLUDED == TRUE)
#include <string.h>
#include <base/bind.h>
#include <base/callback.h>
#include <list>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include "bta_gatt_api.h"
#include "bta_hh_co.h"
#include "btm_api.h"
#include "btm_ble_api.h"
#include "btm_int.h"
#include "device/include/interop.h"
#include "osi/include/log.h"
#include "srvc_api.h"
#include "stack/include/l2c_api.h"
#include "utl.h"
using std::vector;
#ifndef BTA_HH_LE_RECONN
#define BTA_HH_LE_RECONN TRUE
#endif
#define BTA_HH_APP_ID_LE 0xff
#define BTA_HH_LE_RPT_TYPE_VALID(x) \
((x) <= BTA_LE_HID_RPT_FEATURE && (x) >= BTA_LE_HID_RPT_INPUT)
#define BTA_HH_LE_PROTO_BOOT_MODE 0x00
#define BTA_HH_LE_PROTO_REPORT_MODE 0x01
#define BTA_LE_HID_RTP_UUID_MAX 5
static const uint16_t bta_hh_uuid_to_rtp_type[BTA_LE_HID_RTP_UUID_MAX][2] = {
{GATT_UUID_HID_REPORT, BTA_HH_RPTT_INPUT},
{GATT_UUID_HID_BT_KB_INPUT, BTA_HH_RPTT_INPUT},
{GATT_UUID_HID_BT_KB_OUTPUT, BTA_HH_RPTT_OUTPUT},
{GATT_UUID_HID_BT_MOUSE_INPUT, BTA_HH_RPTT_INPUT},
{GATT_UUID_BATTERY_LEVEL, BTA_HH_RPTT_INPUT}};
static void bta_hh_gattc_callback(tBTA_GATTC_EVT event, tBTA_GATTC* p_data);
static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB* p_cb, bool check_bond);
// TODO(jpawlowski): uncomment when fixed
// static void bta_hh_process_cache_rpt (tBTA_HH_DEV_CB *p_cb,
// tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache,
// uint8_t num_rpt);
#define GATT_READ_CHAR 0
#define GATT_READ_DESC 1
#define GATT_WRITE_CHAR 2
#define GATT_WRITE_DESC 3
/* Holds pending GATT operations */
struct gatt_operation {
uint8_t type;
uint16_t handle;
GATT_READ_OP_CB read_cb;
void* read_cb_data;
GATT_WRITE_OP_CB write_cb;
void* write_cb_data;
/* write-specific fields */
tBTA_GATTC_WRITE_TYPE write_type;
vector<uint8_t> value;
};
// maps connection id to operations waiting for execution
static std::unordered_map<uint16_t, std::list<gatt_operation>> gatt_op_queue;
// contain connection ids that currently execute operations
static std::unordered_set<uint16_t> gatt_op_queue_executing;
static void mark_as_not_executing(uint16_t conn_id) {
gatt_op_queue_executing.erase(conn_id);
}
static void gatt_op_queue_clean(uint16_t conn_id) {
gatt_op_queue.erase(conn_id);
gatt_op_queue_executing.erase(conn_id);
}
static void gatt_execute_next_op(uint16_t conn_id);
GATT_READ_OP_CB act_read_cb = NULL;
void* act_read_cb_data = NULL;
static void gatt_read_op_finished(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len, uint8_t* value,
void* data) {
GATT_READ_OP_CB tmp_cb = act_read_cb;
void* tmp_cb_data = act_read_cb_data;
act_read_cb = NULL;
act_read_cb_data = NULL;
mark_as_not_executing(conn_id);
gatt_execute_next_op(conn_id);
if (tmp_cb) {
tmp_cb(conn_id, status, handle, len, value, tmp_cb_data);
return;
}
}
GATT_WRITE_OP_CB act_write_cb = NULL;
void* act_write_cb_data = NULL;
static void gatt_write_op_finished(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, void* data) {
GATT_WRITE_OP_CB tmp_cb = act_write_cb;
void* tmp_cb_data = act_write_cb_data;
act_write_cb = NULL;
act_write_cb_data = NULL;
mark_as_not_executing(conn_id);
gatt_execute_next_op(conn_id);
if (tmp_cb) {
tmp_cb(conn_id, status, handle, tmp_cb_data);
return;
}
}
static void gatt_execute_next_op(uint16_t conn_id) {
APPL_TRACE_DEBUG("%s:", __func__, conn_id);
if (gatt_op_queue.empty()) {
APPL_TRACE_DEBUG("%s: op queue is empty", __func__);
return;
}
auto map_ptr = gatt_op_queue.find(conn_id);
if (map_ptr == gatt_op_queue.end() || map_ptr->second.empty()) {
APPL_TRACE_DEBUG("%s: no more operations queued for conn_id %d", __func__,
conn_id);
return;
}
if (gatt_op_queue_executing.count(conn_id)) {
APPL_TRACE_DEBUG("%s: can't enqueue next op, already executing", __func__);
return;
}
gatt_op_queue_executing.insert(conn_id);
std::list<gatt_operation>& gatt_ops = map_ptr->second;
gatt_operation& op = gatt_ops.front();
if (op.type == GATT_READ_CHAR) {
act_read_cb = op.read_cb;
act_read_cb_data = op.read_cb_data;
BTA_GATTC_ReadCharacteristic(conn_id, op.handle, BTA_GATT_AUTH_REQ_NONE,
gatt_read_op_finished, NULL);
} else if (op.type == GATT_READ_DESC) {
act_read_cb = op.read_cb;
act_read_cb_data = op.read_cb_data;
BTA_GATTC_ReadCharDescr(conn_id, op.handle, BTA_GATT_AUTH_REQ_NONE,
gatt_read_op_finished, NULL);
} else if (op.type == GATT_WRITE_CHAR) {
act_write_cb = op.write_cb;
act_write_cb_data = op.write_cb_data;
BTA_GATTC_WriteCharValue(conn_id, op.handle, op.write_type,
std::move(op.value), BTA_GATT_AUTH_REQ_NONE,
gatt_write_op_finished, NULL);
} else if (op.type == GATT_WRITE_DESC) {
act_write_cb = op.write_cb;
act_write_cb_data = op.write_cb_data;
BTA_GATTC_WriteCharDescr(conn_id, op.handle, std::move(op.value),
BTA_GATT_AUTH_REQ_NONE, gatt_write_op_finished,
NULL);
}
gatt_ops.pop_front();
}
static void gatt_queue_read_op(uint8_t op_type, uint16_t conn_id,
uint16_t handle, GATT_READ_OP_CB cb,
void* cb_data) {
gatt_operation op;
op.type = op_type;
op.handle = handle;
op.read_cb = cb;
op.read_cb_data = cb_data;
gatt_op_queue[conn_id].push_back(op);
gatt_execute_next_op(conn_id);
}
static void gatt_queue_write_op(uint8_t op_type, uint16_t conn_id,
uint16_t handle, vector<uint8_t> value,
tBTA_GATTC_WRITE_TYPE write_type,
GATT_WRITE_OP_CB cb, void* cb_data) {
gatt_operation op;
op.type = op_type;
op.handle = handle;
op.write_type = write_type;
op.write_cb = cb;
op.write_cb_data = cb_data;
op.value = std::move(value);
gatt_op_queue[conn_id].push_back(op);
gatt_execute_next_op(conn_id);
}
#if (BTA_HH_DEBUG == TRUE)
static const char* bta_hh_le_rpt_name[4] = {"UNKNOWN", "INPUT", "OUTPUT",
"FEATURE"};
/*******************************************************************************
*
* Function bta_hh_le_hid_report_dbg
*
* Description debug function to print out all HID report available on
* remote device.
*
* Returns void
*
******************************************************************************/
static void bta_hh_le_hid_report_dbg(tBTA_HH_DEV_CB* p_cb) {
APPL_TRACE_DEBUG("%s: HID Report DB", __func__);
if (!p_cb->hid_srvc.in_use) return;
tBTA_HH_LE_RPT* p_rpt = &p_cb->hid_srvc.report[0];
for (int j = 0; j < BTA_HH_LE_RPT_MAX; j++, p_rpt++) {
const char* rpt_name = "Unknown";
if (!p_rpt->in_use) break;
if (p_rpt->uuid == GATT_UUID_HID_REPORT) rpt_name = "Report";
if (p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT) rpt_name = "Boot KB Input";
if (p_rpt->uuid == GATT_UUID_HID_BT_KB_OUTPUT) rpt_name = "Boot KB Output";
if (p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT) rpt_name = "Boot MI Input";
APPL_TRACE_DEBUG(
"\t\t [%s- 0x%04x] [Type: %s], [ReportID: %d] [srvc_inst_id: %d] "
"[char_inst_id: %d] [Clt_cfg: %d]",
rpt_name, p_rpt->uuid,
((p_rpt->rpt_type < 4) ? bta_hh_le_rpt_name[p_rpt->rpt_type]
: "UNKNOWN"),
p_rpt->rpt_id, p_rpt->srvc_inst_id, p_rpt->char_inst_id,
p_rpt->client_cfg_value);
}
}
/*******************************************************************************
*
* Function bta_hh_uuid_to_str
*
* Description
*
* Returns void
*
******************************************************************************/
static const char* bta_hh_uuid_to_str(uint16_t uuid) {
switch (uuid) {
case GATT_UUID_HID_INFORMATION:
return "GATT_UUID_HID_INFORMATION";
case GATT_UUID_HID_REPORT_MAP:
return "GATT_UUID_HID_REPORT_MAP";
case GATT_UUID_HID_CONTROL_POINT:
return "GATT_UUID_HID_CONTROL_POINT";
case GATT_UUID_HID_REPORT:
return "GATT_UUID_HID_REPORT";
case GATT_UUID_HID_PROTO_MODE:
return "GATT_UUID_HID_PROTO_MODE";
case GATT_UUID_HID_BT_KB_INPUT:
return "GATT_UUID_HID_BT_KB_INPUT";
case GATT_UUID_HID_BT_KB_OUTPUT:
return "GATT_UUID_HID_BT_KB_OUTPUT";
case GATT_UUID_HID_BT_MOUSE_INPUT:
return "GATT_UUID_HID_BT_MOUSE_INPUT";
case GATT_UUID_CHAR_CLIENT_CONFIG:
return "GATT_UUID_CHAR_CLIENT_CONFIG";
case GATT_UUID_EXT_RPT_REF_DESCR:
return "GATT_UUID_EXT_RPT_REF_DESCR";
case GATT_UUID_RPT_REF_DESCR:
return "GATT_UUID_RPT_REF_DESCR";
default:
return "Unknown UUID";
}
}
#endif
/*******************************************************************************
*
* Function bta_hh_le_enable
*
* Description initialize LE HID related functionality
*
*
* Returns void
*
******************************************************************************/
void bta_hh_le_enable(void) {
uint8_t xx;
bta_hh_cb.gatt_if = BTA_GATTS_INVALID_IF;
for (xx = 0; xx < BTA_HH_MAX_DEVICE; xx++)
bta_hh_cb.le_cb_index[xx] = BTA_HH_IDX_INVALID;
BTA_GATTC_AppRegister(bta_hh_gattc_callback,
base::Bind([](uint8_t client_id, uint8_t r_status) {
tBTA_HH_STATUS status = BTA_HH_ERR;
if (r_status == BTA_GATT_OK) {
bta_hh_cb.gatt_if = client_id;
status = BTA_HH_OK;
} else
bta_hh_cb.gatt_if = BTA_GATTS_INVALID_IF;
/* signal BTA call back event */
(*bta_hh_cb.p_cback)(BTA_HH_ENABLE_EVT,
(tBTA_HH*)&status);
}));
}
/*******************************************************************************
*
* Function bta_hh_le_is_hh_gatt_if
*
* Description Check to see if client_if is BTA HH LE GATT interface
*
*
* Returns whether it is HH GATT IF
*
******************************************************************************/
bool bta_hh_le_is_hh_gatt_if(tBTA_GATTC_IF client_if) {
return (bta_hh_cb.gatt_if == client_if);
}
/*******************************************************************************
*
* Function bta_hh_le_deregister
*
* Description De-register BTA HH from BTA GATTC
*
*
* Returns void
*
******************************************************************************/
void bta_hh_le_deregister(void) { BTA_GATTC_AppDeregister(bta_hh_cb.gatt_if); }
/*******************************************************************************
*
* Function bta_hh_is_le_device
*
* Description Check to see if the remote device is a LE only device
*
* Parameters:
*
******************************************************************************/
bool bta_hh_is_le_device(tBTA_HH_DEV_CB* p_cb, const RawAddress& remote_bda) {
p_cb->is_le_device = BTM_UseLeLink(remote_bda);
return p_cb->is_le_device;
}
/*******************************************************************************
*
* Function bta_hh_le_open_conn
*
* Description open a GATT connection first.
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_open_conn(tBTA_HH_DEV_CB* p_cb, const RawAddress& remote_bda) {
/* update cb_index[] map */
p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
p_cb->addr = remote_bda;
bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = p_cb->index;
p_cb->in_use = true;
BTA_GATTC_Open(bta_hh_cb.gatt_if, remote_bda, true, BTA_GATT_TRANSPORT_LE,
false);
}
/*******************************************************************************
*
* Function bta_hh_le_find_dev_cb_by_conn_id
*
* Description Utility function find a device control block by connection
* ID.
*
******************************************************************************/
tBTA_HH_DEV_CB* bta_hh_le_find_dev_cb_by_conn_id(uint16_t conn_id) {
uint8_t i;
tBTA_HH_DEV_CB* p_dev_cb = &bta_hh_cb.kdev[0];
for (i = 0; i < BTA_HH_MAX_DEVICE; i++, p_dev_cb++) {
if (p_dev_cb->in_use && p_dev_cb->conn_id == conn_id) return p_dev_cb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_hh_le_find_dev_cb_by_bda
*
* Description Utility function find a device control block by BD address.
*
******************************************************************************/
tBTA_HH_DEV_CB* bta_hh_le_find_dev_cb_by_bda(const RawAddress& bda) {
uint8_t i;
tBTA_HH_DEV_CB* p_dev_cb = &bta_hh_cb.kdev[0];
for (i = 0; i < BTA_HH_MAX_DEVICE; i++, p_dev_cb++) {
if (p_dev_cb->in_use && p_dev_cb->addr == bda) return p_dev_cb;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_hh_le_find_service_inst_by_battery_inst_id
*
* Description find HID service instance ID by battery service instance ID
*
******************************************************************************/
uint8_t bta_hh_le_find_service_inst_by_battery_inst_id(tBTA_HH_DEV_CB* p_cb,
uint8_t ba_inst_id) {
if (p_cb->hid_srvc.in_use && p_cb->hid_srvc.incl_srvc_inst == ba_inst_id) {
return p_cb->hid_srvc.srvc_inst_id;
}
return BTA_HH_IDX_INVALID;
}
/*******************************************************************************
*
* Function bta_hh_le_find_report_entry
*
* Description find the report entry by service instance and report UUID
* and instance ID
*
******************************************************************************/
tBTA_HH_LE_RPT* bta_hh_le_find_report_entry(
tBTA_HH_DEV_CB* p_cb, uint8_t srvc_inst_id, /* service instance ID */
uint16_t rpt_uuid, uint8_t char_inst_id) {
uint8_t i;
uint8_t hid_inst_id = srvc_inst_id;
tBTA_HH_LE_RPT* p_rpt;
if (rpt_uuid == GATT_UUID_BATTERY_LEVEL) {
hid_inst_id =
bta_hh_le_find_service_inst_by_battery_inst_id(p_cb, srvc_inst_id);
if (hid_inst_id == BTA_HH_IDX_INVALID) return NULL;
}
p_rpt = &p_cb->hid_srvc.report[0];
for (i = 0; i < BTA_HH_LE_RPT_MAX; i++, p_rpt++) {
if (p_rpt->uuid == rpt_uuid && p_rpt->srvc_inst_id == srvc_inst_id &&
p_rpt->char_inst_id == char_inst_id) {
return p_rpt;
}
}
return NULL;
}
/*******************************************************************************
*
* Function bta_hh_le_find_rpt_by_idtype
*
* Description find a report entry by report ID and protocol mode
*
* Returns void
*
******************************************************************************/
tBTA_HH_LE_RPT* bta_hh_le_find_rpt_by_idtype(tBTA_HH_LE_RPT* p_head,
uint8_t mode,
tBTA_HH_RPT_TYPE r_type,
uint8_t rpt_id) {
tBTA_HH_LE_RPT* p_rpt = p_head;
uint8_t i;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("bta_hh_le_find_rpt_by_idtype: r_type: %d rpt_id: %d",
r_type, rpt_id);
#endif
for (i = 0; i < BTA_HH_LE_RPT_MAX; i++, p_rpt++) {
if (p_rpt->in_use && p_rpt->rpt_id == rpt_id && r_type == p_rpt->rpt_type) {
/* return battery report w/o condition */
if (p_rpt->uuid == GATT_UUID_BATTERY_LEVEL) return p_rpt;
if (mode == BTA_HH_PROTO_RPT_MODE && p_rpt->uuid == GATT_UUID_HID_REPORT)
return p_rpt;
if (mode == BTA_HH_PROTO_BOOT_MODE &&
(p_rpt->uuid >= GATT_UUID_HID_BT_KB_INPUT &&
p_rpt->uuid <= GATT_UUID_HID_BT_MOUSE_INPUT))
return p_rpt;
}
}
return NULL;
}
/*******************************************************************************
*
* Function bta_hh_le_find_alloc_report_entry
*
* Description find or allocate a report entry in the HID service report
* list.
*
******************************************************************************/
tBTA_HH_LE_RPT* bta_hh_le_find_alloc_report_entry(tBTA_HH_DEV_CB* p_cb,
uint8_t srvc_inst_id,
uint16_t rpt_uuid,
uint8_t inst_id) {
uint8_t i, hid_inst_id = srvc_inst_id;
tBTA_HH_LE_RPT* p_rpt;
if (rpt_uuid == GATT_UUID_BATTERY_LEVEL) {
hid_inst_id =
bta_hh_le_find_service_inst_by_battery_inst_id(p_cb, srvc_inst_id);
if (hid_inst_id == BTA_HH_IDX_INVALID) return NULL;
}
p_rpt = &p_cb->hid_srvc.report[0];
for (i = 0; i < BTA_HH_LE_RPT_MAX; i++, p_rpt++) {
if (!p_rpt->in_use ||
(p_rpt->uuid == rpt_uuid && p_rpt->srvc_inst_id == srvc_inst_id &&
p_rpt->char_inst_id == inst_id)) {
if (!p_rpt->in_use) {
p_rpt->in_use = true;
p_rpt->index = i;
p_rpt->srvc_inst_id = srvc_inst_id;
p_rpt->char_inst_id = inst_id;
p_rpt->uuid = rpt_uuid;
/* assign report type */
for (i = 0; i < BTA_LE_HID_RTP_UUID_MAX; i++) {
if (bta_hh_uuid_to_rtp_type[i][0] == rpt_uuid) {
p_rpt->rpt_type = (tBTA_HH_RPT_TYPE)bta_hh_uuid_to_rtp_type[i][1];
if (rpt_uuid == GATT_UUID_HID_BT_KB_INPUT ||
rpt_uuid == GATT_UUID_HID_BT_KB_OUTPUT)
p_rpt->rpt_id = BTA_HH_KEYBD_RPT_ID;
if (rpt_uuid == GATT_UUID_HID_BT_MOUSE_INPUT)
p_rpt->rpt_id = BTA_HH_MOUSE_RPT_ID;
break;
}
}
}
return p_rpt;
}
}
return NULL;
}
static tBTA_GATTC_DESCRIPTOR* find_descriptor_by_short_uuid(
uint16_t conn_id, uint16_t char_handle, uint16_t short_uuid) {
const tBTA_GATTC_CHARACTERISTIC* p_char =
BTA_GATTC_GetCharacteristic(conn_id, char_handle);
if (!p_char) {
LOG_WARN(LOG_TAG, "%s No such characteristic: %d", __func__, char_handle);
return NULL;
}
if (!p_char->descriptors || list_is_empty(p_char->descriptors)) return NULL;
for (list_node_t* dn = list_begin(p_char->descriptors);
dn != list_end(p_char->descriptors); dn = list_next(dn)) {
tBTA_GATTC_DESCRIPTOR* p_desc = (tBTA_GATTC_DESCRIPTOR*)list_node(dn);
if (p_char->uuid.len == LEN_UUID_16 && p_desc->uuid.uu.uuid16 == short_uuid)
return p_desc;
}
return NULL;
}
/*******************************************************************************
*
* Function bta_hh_le_read_char_descriptor
*
* Description read characteristic descriptor
*
******************************************************************************/
static tBTA_HH_STATUS bta_hh_le_read_char_descriptor(tBTA_HH_DEV_CB* p_cb,
uint16_t char_handle,
uint16_t short_uuid,
GATT_READ_OP_CB cb,
void* cb_data) {
const tBTA_GATTC_DESCRIPTOR* p_desc =
find_descriptor_by_short_uuid(p_cb->conn_id, char_handle, short_uuid);
if (!p_desc) return BTA_HH_ERR;
gatt_queue_read_op(GATT_READ_DESC, p_cb->conn_id, p_desc->handle, cb,
cb_data);
return BTA_HH_OK;
}
/*******************************************************************************
*
* Function bta_hh_le_save_report_ref
*
* Description save report reference information and move to next one.
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_save_report_ref(tBTA_HH_DEV_CB* p_dev_cb, tBTA_HH_LE_RPT* p_rpt,
tGATT_STATUS status, uint8_t* value,
uint16_t len) {
if (status == BTA_GATT_INSUF_AUTHENTICATION) {
/* close connection right away */
p_dev_cb->status = BTA_HH_ERR_AUTH_FAILED;
/* close the connection and report service discovery complete with error */
bta_hh_le_api_disc_act(p_dev_cb);
return;
}
/* if the length of the descriptor value is right, parse it */
if (status == BTA_GATT_OK && len == 2) {
uint8_t* pp = value;
STREAM_TO_UINT8(p_rpt->rpt_id, pp);
STREAM_TO_UINT8(p_rpt->rpt_type, pp);
if (p_rpt->rpt_type > BTA_HH_RPTT_FEATURE) /* invalid report type */
p_rpt->rpt_type = BTA_HH_RPTT_RESRV;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: report ID: %d", __func__, p_rpt->rpt_id);
#endif
tBTA_HH_RPT_CACHE_ENTRY rpt_entry;
rpt_entry.rpt_id = p_rpt->rpt_id;
rpt_entry.rpt_type = p_rpt->rpt_type;
rpt_entry.rpt_uuid = p_rpt->uuid;
rpt_entry.srvc_inst_id = p_rpt->srvc_inst_id;
rpt_entry.char_inst_id = p_rpt->char_inst_id;
bta_hh_le_co_rpt_info(p_dev_cb->addr, &rpt_entry, p_dev_cb->app_id);
}
if (p_rpt->index < BTA_HH_LE_RPT_MAX - 1)
p_rpt++;
else
p_rpt = NULL;
}
/*******************************************************************************
*
* Function bta_hh_le_register_input_notif
*
* Description Register for all notifications for the report applicable
* for the protocol mode.
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_register_input_notif(tBTA_HH_DEV_CB* p_dev_cb,
uint8_t proto_mode, bool register_ba) {
tBTA_HH_LE_RPT* p_rpt = &p_dev_cb->hid_srvc.report[0];
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: bta_hh_le_register_input_notif mode: %d", __func__,
proto_mode);
#endif
for (int i = 0; i < BTA_HH_LE_RPT_MAX; i++, p_rpt++) {
if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT) {
if (register_ba && p_rpt->uuid == GATT_UUID_BATTERY_LEVEL) {
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
p_rpt->char_inst_id);
}
/* boot mode, deregister report input notification */
else if (proto_mode == BTA_HH_PROTO_BOOT_MODE) {
if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION) {
APPL_TRACE_DEBUG("%s ---> Deregister Report ID: %d", __func__,
p_rpt->rpt_id);
BTA_GATTC_DeregisterForNotifications(
bta_hh_cb.gatt_if, p_dev_cb->addr, p_rpt->char_inst_id);
}
/* register boot reports notification */
else if (p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT) {
APPL_TRACE_DEBUG("%s <--- Register Boot Report ID: %d", __func__,
p_rpt->rpt_id);
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
p_rpt->char_inst_id);
}
} else if (proto_mode == BTA_HH_PROTO_RPT_MODE) {
if ((p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT) &&
p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION) {
APPL_TRACE_DEBUG("%s ---> Deregister Boot Report ID: %d", __func__,
p_rpt->rpt_id);
BTA_GATTC_DeregisterForNotifications(
bta_hh_cb.gatt_if, p_dev_cb->addr, p_rpt->char_inst_id);
} else if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
p_rpt->client_cfg_value ==
BTA_GATT_CLT_CONFIG_NOTIFICATION) {
APPL_TRACE_DEBUG("%s <--- Register Report ID: %d", __func__,
p_rpt->rpt_id);
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
p_rpt->char_inst_id);
}
}
/*
else unknow protocol mode */
}
}
}
/*******************************************************************************
*
* Function bta_hh_le_deregister_input_notif
*
* Description Deregister all notifications
*
******************************************************************************/
void bta_hh_le_deregister_input_notif(tBTA_HH_DEV_CB* p_dev_cb) {
tBTA_HH_LE_RPT* p_rpt = &p_dev_cb->hid_srvc.report[0];
for (uint8_t i = 0; i < BTA_HH_LE_RPT_MAX; i++, p_rpt++) {
if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT) {
if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION) {
APPL_TRACE_DEBUG("%s ---> Deregister Report ID: %d", __func__,
p_rpt->rpt_id);
BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
p_rpt->char_inst_id);
} else if ((p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT) &&
p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION) {
APPL_TRACE_DEBUG("%s ---> Deregister Boot Report ID: %d", __func__,
p_rpt->rpt_id);
BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if, p_dev_cb->addr,
p_rpt->char_inst_id);
}
}
}
}
/*******************************************************************************
*
* Function bta_hh_le_open_cmpl
*
* Description HID over GATT connection sucessfully opened
*
******************************************************************************/
void bta_hh_le_open_cmpl(tBTA_HH_DEV_CB* p_cb) {
if (p_cb->disc_active == BTA_HH_LE_DISC_NONE) {
#if (BTA_HH_DEBUG == TRUE)
bta_hh_le_hid_report_dbg(p_cb);
#endif
bta_hh_le_register_input_notif(p_cb, p_cb->mode, true);
bta_hh_sm_execute(p_cb, BTA_HH_OPEN_CMPL_EVT, NULL);
#if (BTA_HH_LE_RECONN == TRUE)
if (p_cb->status == BTA_HH_OK) {
bta_hh_le_add_dev_bg_conn(p_cb, true);
}
#endif
}
}
/*******************************************************************************
*
* Function bta_hh_le_write_ccc
*
* Description Utility function to find and write client configuration of
* a characteristic
*
******************************************************************************/
bool bta_hh_le_write_ccc(tBTA_HH_DEV_CB* p_cb, uint8_t char_handle,
uint16_t clt_cfg_value, GATT_WRITE_OP_CB cb,
void* cb_data) {
tBTA_GATTC_DESCRIPTOR* p_desc = find_descriptor_by_short_uuid(
p_cb->conn_id, char_handle, GATT_UUID_CHAR_CLIENT_CONFIG);
if (!p_desc) return false;
vector<uint8_t> value(2);
uint8_t* ptr = value.data();
UINT16_TO_STREAM(ptr, clt_cfg_value);
gatt_queue_write_op(GATT_WRITE_DESC, p_cb->conn_id, p_desc->handle,
std::move(value), BTA_GATTC_TYPE_WRITE, cb, cb_data);
return true;
}
bool bta_hh_le_write_rpt_clt_cfg(tBTA_HH_DEV_CB* p_cb);
static void write_rpt_ctl_cfg_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, void* data) {
uint8_t srvc_inst_id, hid_inst_id;
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
const tBTA_GATTC_DESCRIPTOR* p_desc =
BTA_GATTC_GetDescriptor(conn_id, handle);
uint16_t char_uuid = p_desc->characteristic->uuid.uu.uuid16;
srvc_inst_id = p_desc->characteristic->service->handle;
hid_inst_id = srvc_inst_id;
switch (char_uuid) {
case GATT_UUID_BATTERY_LEVEL: /* battery level clt cfg registered */
hid_inst_id = bta_hh_le_find_service_inst_by_battery_inst_id(
p_dev_cb, srvc_inst_id);
/* FALLTHROUGH */
case GATT_UUID_HID_BT_KB_INPUT:
case GATT_UUID_HID_BT_MOUSE_INPUT:
case GATT_UUID_HID_REPORT:
if (status == BTA_GATT_OK)
p_dev_cb->hid_srvc.report[p_dev_cb->clt_cfg_idx].client_cfg_value =
BTA_GATT_CLT_CONFIG_NOTIFICATION;
p_dev_cb->clt_cfg_idx++;
bta_hh_le_write_rpt_clt_cfg(p_dev_cb);
break;
default:
APPL_TRACE_ERROR("Unknown char ID clt cfg: 0x%04x", char_uuid);
}
}
/*******************************************************************************
*
* Function bta_hh_le_write_rpt_clt_cfg
*
* Description write client configuration. This is only for input report
* enable all input notification upon connection open.
*
******************************************************************************/
bool bta_hh_le_write_rpt_clt_cfg(tBTA_HH_DEV_CB* p_cb) {
uint8_t i;
tBTA_HH_LE_RPT* p_rpt = &p_cb->hid_srvc.report[p_cb->clt_cfg_idx];
for (i = p_cb->clt_cfg_idx; i < BTA_HH_LE_RPT_MAX && p_rpt->in_use;
i++, p_rpt++) {
/* enable notification for all input report, regardless mode */
if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT) {
if (bta_hh_le_write_ccc(p_cb, p_rpt->char_inst_id,
BTA_GATT_CLT_CONFIG_NOTIFICATION,
write_rpt_ctl_cfg_cb, p_cb)) {
p_cb->clt_cfg_idx = i;
return true;
}
}
}
p_cb->clt_cfg_idx = 0;
/* client configuration is completed, send open callback */
if (p_cb->state == BTA_HH_W4_CONN_ST) {
p_cb->disc_active &= ~BTA_HH_LE_DISC_HIDS;
bta_hh_le_open_cmpl(p_cb);
}
return false;
}
static void write_proto_mode_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, void* data) {
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
if (p_dev_cb->state == BTA_HH_CONN_ST) {
/* Set protocol finished in CONN state*/
uint16_t cb_evt = p_dev_cb->w4_evt;
if (cb_evt == 0) return;
tBTA_HH_CBDATA cback_data;
cback_data.handle = p_dev_cb->hid_handle;
cback_data.status = (status == BTA_GATT_OK) ? BTA_HH_OK : BTA_HH_ERR;
if (status == BTA_GATT_OK)
bta_hh_le_register_input_notif(p_dev_cb, p_dev_cb->mode, false);
p_dev_cb->w4_evt = 0;
(*bta_hh_cb.p_cback)(cb_evt, (tBTA_HH*)&cback_data);
} else if (p_dev_cb->state == BTA_HH_W4_CONN_ST) {
p_dev_cb->status = (status == BTA_GATT_OK) ? BTA_HH_OK : BTA_HH_ERR_PROTO;
if ((p_dev_cb->disc_active & BTA_HH_LE_DISC_HIDS) == 0)
bta_hh_le_open_cmpl(p_dev_cb);
}
}
/*******************************************************************************
*
* Function bta_hh_le_set_protocol_mode
*
* Description Set remote device protocol mode.
*
******************************************************************************/
bool bta_hh_le_set_protocol_mode(tBTA_HH_DEV_CB* p_cb,
tBTA_HH_PROTO_MODE mode) {
tBTA_HH_CBDATA cback_data;
APPL_TRACE_DEBUG("%s attempt mode: %s", __func__,
(mode == BTA_HH_PROTO_RPT_MODE) ? "Report" : "Boot");
cback_data.handle = p_cb->hid_handle;
/* boot mode is not supported in the remote device */
if (p_cb->hid_srvc.proto_mode_handle == 0) {
p_cb->mode = BTA_HH_PROTO_RPT_MODE;
if (mode == BTA_HH_PROTO_BOOT_MODE) {
APPL_TRACE_ERROR("Set Boot Mode failed!! No PROTO_MODE Char!");
cback_data.status = BTA_HH_ERR;
} else {
/* if set to report mode, need to de-register all input report
* notification */
bta_hh_le_register_input_notif(p_cb, p_cb->mode, false);
cback_data.status = BTA_HH_OK;
}
if (p_cb->state == BTA_HH_W4_CONN_ST) {
p_cb->status =
(cback_data.status == BTA_HH_OK) ? BTA_HH_OK : BTA_HH_ERR_PROTO;
} else
(*bta_hh_cb.p_cback)(BTA_HH_SET_PROTO_EVT, (tBTA_HH*)&cback_data);
} else if (p_cb->mode != mode) {
p_cb->mode = mode;
mode = (mode == BTA_HH_PROTO_BOOT_MODE) ? BTA_HH_LE_PROTO_BOOT_MODE
: BTA_HH_LE_PROTO_REPORT_MODE;
gatt_queue_write_op(GATT_WRITE_CHAR, p_cb->conn_id,
p_cb->hid_srvc.proto_mode_handle, {mode},
BTA_GATTC_TYPE_WRITE_NO_RSP, write_proto_mode_cb, p_cb);
return true;
}
return false;
}
/*******************************************************************************
* Function get_protocol_mode_cb
*
* Description Process the Read protocol mode, send GET_PROTO_EVT to
* application with the protocol mode.
*
******************************************************************************/
static void get_protocol_mode_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len, uint8_t* value,
void* data) {
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
tBTA_HH_HSDATA hs_data;
hs_data.status = BTA_HH_ERR;
hs_data.handle = p_dev_cb->hid_handle;
hs_data.rsp_data.proto_mode = p_dev_cb->mode;
if (status == BTA_GATT_OK && len) {
hs_data.status = BTA_HH_OK;
/* match up BTE/BTA report/boot mode def*/
hs_data.rsp_data.proto_mode = *(value);
/* LE repot mode is the opposite value of BR/EDR report mode, flip it here
*/
if (hs_data.rsp_data.proto_mode == 0)
hs_data.rsp_data.proto_mode = BTA_HH_PROTO_BOOT_MODE;
else
hs_data.rsp_data.proto_mode = BTA_HH_PROTO_RPT_MODE;
p_dev_cb->mode = hs_data.rsp_data.proto_mode;
}
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("LE GET_PROTOCOL Mode = [%s]",
(hs_data.rsp_data.proto_mode == BTA_HH_PROTO_RPT_MODE)
? "Report"
: "Boot");
#endif
p_dev_cb->w4_evt = 0;
(*bta_hh_cb.p_cback)(BTA_HH_GET_PROTO_EVT, (tBTA_HH*)&hs_data);
}
/*******************************************************************************
*
* Function bta_hh_le_get_protocol_mode
*
* Description Get remote device protocol mode.
*
******************************************************************************/
void bta_hh_le_get_protocol_mode(tBTA_HH_DEV_CB* p_cb) {
tBTA_HH_HSDATA hs_data;
p_cb->w4_evt = BTA_HH_GET_PROTO_EVT;
if (p_cb->hid_srvc.in_use && p_cb->hid_srvc.proto_mode_handle != 0) {
gatt_queue_read_op(GATT_READ_CHAR, p_cb->conn_id,
p_cb->hid_srvc.proto_mode_handle, get_protocol_mode_cb,
p_cb);
return;
}
/* no service support protocol_mode, by default report mode */
hs_data.status = BTA_HH_OK;
hs_data.handle = p_cb->hid_handle;
hs_data.rsp_data.proto_mode = BTA_HH_PROTO_RPT_MODE;
p_cb->w4_evt = 0;
(*bta_hh_cb.p_cback)(BTA_HH_GET_PROTO_EVT, (tBTA_HH*)&hs_data);
}
/*******************************************************************************
*
* Function bta_hh_le_dis_cback
*
* Description DIS read complete callback
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_dis_cback(const RawAddress& addr, tDIS_VALUE* p_dis_value) {
tBTA_HH_DEV_CB* p_cb = bta_hh_le_find_dev_cb_by_bda(addr);
if (p_cb == NULL || p_dis_value == NULL) {
APPL_TRACE_ERROR("received unexpected/error DIS callback");
return;
}
p_cb->disc_active &= ~BTA_HH_LE_DISC_DIS;
/* plug in the PnP info for this device */
if (p_dis_value->attr_mask & DIS_ATTR_PNP_ID_BIT) {
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG(
"Plug in PnP info: product_id = %02x, vendor_id = %04x, version = %04x",
p_dis_value->pnp_id.product_id, p_dis_value->pnp_id.vendor_id,
p_dis_value->pnp_id.product_version);
#endif
p_cb->dscp_info.product_id = p_dis_value->pnp_id.product_id;
p_cb->dscp_info.vendor_id = p_dis_value->pnp_id.vendor_id;
p_cb->dscp_info.version = p_dis_value->pnp_id.product_version;
}
bta_hh_le_open_cmpl(p_cb);
}
/*******************************************************************************
*
* Function bta_hh_le_pri_service_discovery
*
* Description Initialize GATT discovery on the remote LE HID device by
* opening a GATT connection first.
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_pri_service_discovery(tBTA_HH_DEV_CB* p_cb) {
tBT_UUID pri_srvc;
bta_hh_le_co_reset_rpt_cache(p_cb->addr, p_cb->app_id);
p_cb->disc_active |= (BTA_HH_LE_DISC_HIDS | BTA_HH_LE_DISC_DIS);
/* read DIS info */
if (!DIS_ReadDISInfo(p_cb->addr, bta_hh_le_dis_cback, DIS_ATTR_PNP_ID_BIT)) {
APPL_TRACE_ERROR("read DIS failed");
p_cb->disc_active &= ~BTA_HH_LE_DISC_DIS;
}
/* in parallel */
/* start primary service discovery for HID service */
pri_srvc.len = LEN_UUID_16;
pri_srvc.uu.uuid16 = UUID_SERVCLASS_LE_HID;
BTA_GATTC_ServiceSearchRequest(p_cb->conn_id, &pri_srvc);
return;
}
/*******************************************************************************
*
* Function bta_hh_le_encrypt_cback
*
* Description link encryption complete callback for bond verification.
*
* Returns None
*
******************************************************************************/
void bta_hh_le_encrypt_cback(const RawAddress* bd_addr,
UNUSED_ATTR tBTA_GATT_TRANSPORT transport,
UNUSED_ATTR void* p_ref_data, tBTM_STATUS result) {
uint8_t idx = bta_hh_find_cb(*bd_addr);
tBTA_HH_DEV_CB* p_dev_cb;
if (idx != BTA_HH_IDX_INVALID)
p_dev_cb = &bta_hh_cb.kdev[idx];
else {
APPL_TRACE_ERROR("unexpected encryption callback, ignore");
return;
}
p_dev_cb->status = (result == BTM_SUCCESS) ? BTA_HH_OK : BTA_HH_ERR_SEC;
p_dev_cb->reason = result;
bta_hh_sm_execute(p_dev_cb, BTA_HH_ENC_CMPL_EVT, NULL);
}
/*******************************************************************************
*
* Function bta_hh_security_cmpl
*
* Description Security check completed, start the service discovery
* if no cache available, otherwise report connection open
* completed
*
* Parameters:
*
******************************************************************************/
void bta_hh_security_cmpl(tBTA_HH_DEV_CB* p_cb,
UNUSED_ATTR tBTA_HH_DATA* p_buf) {
APPL_TRACE_DEBUG("%s", __func__);
if (p_cb->status == BTA_HH_OK) {
if (!p_cb->hid_srvc.in_use) {
APPL_TRACE_DEBUG("bta_hh_security_cmpl no reports loaded, try to load");
/* start loading the cache if not in stack */
// TODO(jpawlowski): cache storage is broken, fix it
// tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache;
// uint8_t num_rpt = 0;
// if ((p_rpt_cache = bta_hh_le_co_cache_load(p_cb->addr, &num_rpt,
// p_cb->app_id)) != NULL)
// {
// bta_hh_process_cache_rpt(p_cb, p_rpt_cache, num_rpt);
// }
}
/* discovery has been done for HID service */
if (p_cb->app_id != 0 && p_cb->hid_srvc.in_use) {
APPL_TRACE_DEBUG("%s: discovery has been done for HID service", __func__);
/* configure protocol mode */
if (bta_hh_le_set_protocol_mode(p_cb, p_cb->mode) == false) {
bta_hh_le_open_cmpl(p_cb);
}
}
/* start primary service discovery for HID service */
else {
APPL_TRACE_DEBUG("%s: Starting service discovery", __func__);
bta_hh_le_pri_service_discovery(p_cb);
}
} else {
APPL_TRACE_ERROR("%s() - encryption failed; status=0x%04x, reason=0x%04x",
__func__, p_cb->status, p_cb->reason);
if (!(p_cb->status == BTA_HH_ERR_SEC && p_cb->reason == BTM_ERR_PROCESSING))
bta_hh_le_api_disc_act(p_cb);
}
}
/*******************************************************************************
*
* Function bta_hh_le_notify_enc_cmpl
*
* Description process GATT encryption complete event
*
* Returns
*
******************************************************************************/
void bta_hh_le_notify_enc_cmpl(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_buf) {
if (p_cb == NULL || p_cb->security_pending == false || p_buf == NULL ||
p_buf->le_enc_cmpl.client_if != bta_hh_cb.gatt_if) {
return;
}
p_cb->security_pending = false;
bta_hh_start_security(p_cb, NULL);
}
/*******************************************************************************
*
* Function bta_hh_clear_service_cache
*
* Description clear the service cache
*
* Parameters:
*
******************************************************************************/
void bta_hh_clear_service_cache(tBTA_HH_DEV_CB* p_cb) {
tBTA_HH_LE_HID_SRVC* p_hid_srvc = &p_cb->hid_srvc;
p_cb->app_id = 0;
p_cb->dscp_info.descriptor.dsc_list = NULL;
osi_free_and_reset((void**)&p_hid_srvc->rpt_map);
memset(p_hid_srvc, 0, sizeof(tBTA_HH_LE_HID_SRVC));
}
/*******************************************************************************
*
* Function bta_hh_start_security
*
* Description start the security check of the established connection
*
* Parameters:
*
******************************************************************************/
void bta_hh_start_security(tBTA_HH_DEV_CB* p_cb,
UNUSED_ATTR tBTA_HH_DATA* p_buf) {
uint8_t sec_flag = 0;
tBTM_SEC_DEV_REC* p_dev_rec;
p_dev_rec = btm_find_dev(p_cb->addr);
if (p_dev_rec) {
if (p_dev_rec->sec_state == BTM_SEC_STATE_ENCRYPTING ||
p_dev_rec->sec_state == BTM_SEC_STATE_AUTHENTICATING) {
/* if security collision happened, wait for encryption done */
p_cb->security_pending = true;
return;
}
}
/* verify bond */
BTM_GetSecurityFlagsByTransport(p_cb->addr, &sec_flag, BT_TRANSPORT_LE);
/* if link has been encrypted */
if (sec_flag & BTM_SEC_FLAG_ENCRYPTED) {
bta_hh_sm_execute(p_cb, BTA_HH_ENC_CMPL_EVT, NULL);
}
/* if bonded and link not encrypted */
else if (sec_flag & BTM_SEC_FLAG_LKEY_KNOWN) {
sec_flag = BTM_BLE_SEC_ENCRYPT;
p_cb->status = BTA_HH_ERR_AUTH_FAILED;
BTM_SetEncryption(p_cb->addr, BTA_TRANSPORT_LE, bta_hh_le_encrypt_cback,
NULL, sec_flag);
}
/* unbonded device, report security error here */
else if (p_cb->sec_mask != BTA_SEC_NONE) {
sec_flag = BTM_BLE_SEC_ENCRYPT_NO_MITM;
p_cb->status = BTA_HH_ERR_AUTH_FAILED;
bta_hh_clear_service_cache(p_cb);
BTM_SetEncryption(p_cb->addr, BTA_TRANSPORT_LE, bta_hh_le_encrypt_cback,
NULL, sec_flag);
}
/* otherwise let it go through */
else {
bta_hh_sm_execute(p_cb, BTA_HH_ENC_CMPL_EVT, NULL);
}
}
/*******************************************************************************
*
* Function bta_hh_gatt_open
*
* Description process GATT open event.
*
* Parameters:
*
******************************************************************************/
void bta_hh_gatt_open(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_buf) {
tBTA_GATTC_OPEN* p_data = &p_buf->le_open;
uint8_t* p2;
tHID_STATUS status = BTA_HH_ERR;
/* if received invalid callback data , ignore it */
if (p_cb == NULL || p_data == NULL) return;
p2 = p_data->remote_bda.address;
APPL_TRACE_DEBUG(
"bta_hh_gatt_open BTA_GATTC_OPEN_EVT bda= [%08x%04x] status =%d",
((p2[0]) << 24) + ((p2[1]) << 16) + ((p2[2]) << 8) + (p2[3]),
((p2[4]) << 8) + p2[5], p_data->status);
if (p_data->status == BTA_GATT_OK) {
p_cb->is_le_device = true;
p_cb->in_use = true;
p_cb->conn_id = p_data->conn_id;
p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = p_cb->index;
gatt_op_queue_clean(p_cb->conn_id);
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("hid_handle = %2x conn_id = %04x cb_index = %d",
p_cb->hid_handle, p_cb->conn_id, p_cb->index);
#endif
bta_hh_sm_execute(p_cb, BTA_HH_START_ENC_EVT, NULL);
} else /* open failure */
{
bta_hh_sm_execute(p_cb, BTA_HH_SDP_CMPL_EVT, (tBTA_HH_DATA*)&status);
}
}
/*******************************************************************************
*
* Function bta_hh_le_close
*
* Description This function process the GATT close event and post it as a
* BTA HH internal event
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_close(tBTA_GATTC_CLOSE* p_data) {
tBTA_HH_DEV_CB* p_dev_cb = bta_hh_le_find_dev_cb_by_bda(p_data->remote_bda);
uint16_t sm_event = BTA_HH_GATT_CLOSE_EVT;
if (p_dev_cb != NULL) {
tBTA_HH_LE_CLOSE* p_buf =
(tBTA_HH_LE_CLOSE*)osi_malloc(sizeof(tBTA_HH_LE_CLOSE));
p_buf->hdr.event = sm_event;
p_buf->hdr.layer_specific = (uint16_t)p_dev_cb->hid_handle;
p_buf->conn_id = p_data->conn_id;
p_buf->reason = p_data->reason;
p_dev_cb->conn_id = BTA_GATT_INVALID_CONN_ID;
p_dev_cb->security_pending = false;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
*
* Function bta_hh_le_gatt_disc_cmpl
*
* Description Check to see if the remote device is a LE only device
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_gatt_disc_cmpl(tBTA_HH_DEV_CB* p_cb, tBTA_HH_STATUS status) {
APPL_TRACE_DEBUG("bta_hh_le_gatt_disc_cmpl ");
/* if open sucessful or protocol mode not desired, keep the connection open
* but inform app */
if (status == BTA_HH_OK || status == BTA_HH_ERR_PROTO) {
/* assign a special APP ID temp, since device type unknown */
p_cb->app_id = BTA_HH_APP_ID_LE;
/* set report notification configuration */
p_cb->clt_cfg_idx = 0;
bta_hh_le_write_rpt_clt_cfg(p_cb);
} else /* error, close the GATT connection */
{
/* close GATT connection if it's on */
bta_hh_le_api_disc_act(p_cb);
}
}
static void read_hid_info_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len, uint8_t* value,
void* data) {
if (status != BTA_GATT_OK) {
APPL_TRACE_ERROR("%s: error: %d", __func__, status);
return;
}
if (len != 4) {
APPL_TRACE_ERROR("%s: wrong length: %d", __func__, len);
return;
}
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
uint8_t* pp = value;
/* save device information */
STREAM_TO_UINT16(p_dev_cb->dscp_info.version, pp);
STREAM_TO_UINT8(p_dev_cb->dscp_info.ctry_code, pp);
STREAM_TO_UINT8(p_dev_cb->dscp_info.flag, pp);
}
static void read_hid_report_map_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len,
uint8_t* value, void* data) {
if (status != BTA_GATT_OK) {
APPL_TRACE_ERROR("%s: error reading characteristic: %d", __func__, status);
return;
}
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
tBTA_HH_LE_HID_SRVC* p_srvc = &p_dev_cb->hid_srvc;
osi_free_and_reset((void**)&p_srvc->rpt_map);
if (len > 0) {
p_srvc->rpt_map = (uint8_t*)osi_malloc(len);
uint8_t* pp = value;
STREAM_TO_ARRAY(p_srvc->rpt_map, pp, len);
p_srvc->descriptor.dl_len = len;
p_srvc->descriptor.dsc_list = p_dev_cb->hid_srvc.rpt_map;
}
}
static void read_ext_rpt_ref_desc_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len,
uint8_t* value, void* data) {
if (status != BTA_GATT_OK) {
APPL_TRACE_ERROR("%s: error: %d", __func__, status);
return;
}
/* if the length of the descriptor value is right, parse it assume it's a 16
* bits UUID */
if (len != LEN_UUID_16) {
APPL_TRACE_ERROR("%s: we support only 16bit UUID: %d", __func__, len);
return;
}
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
uint8_t* pp = value;
STREAM_TO_UINT16(p_dev_cb->hid_srvc.ext_rpt_ref, pp);
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("%s: External Report Reference UUID 0x%04x", __func__,
p_dev_cb->hid_srvc.ext_rpt_ref);
#endif
}
static void read_report_ref_desc_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len,
uint8_t* value, void* data) {
if (status != BTA_GATT_OK) {
APPL_TRACE_ERROR("%s: error: %d", __func__, status);
return;
}
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
const tBTA_GATTC_DESCRIPTOR* p_desc =
BTA_GATTC_GetDescriptor(conn_id, handle);
if (!p_desc) {
APPL_TRACE_ERROR("%s: error: descriptor is null!", __func__);
return;
}
tBTA_HH_LE_RPT* p_rpt;
p_rpt = bta_hh_le_find_report_entry(
p_dev_cb, p_desc->characteristic->service->handle, GATT_UUID_HID_REPORT,
p_desc->characteristic->handle);
if (p_rpt) bta_hh_le_save_report_ref(p_dev_cb, p_rpt, status, value, len);
}
void read_pref_conn_params_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len, uint8_t* value,
void* data) {
if (status != BTA_GATT_OK) {
APPL_TRACE_ERROR("%s: error: %d", __func__, status);
return;
}
if (len != 8) {
APPL_TRACE_ERROR("%s: we support only 16bit UUID: %d", __func__, len);
return;
}
// TODO(jpawlowski): this should be done by GAP profile, remove when GAP is
// fixed.
uint8_t* pp = value;
uint16_t min, max, latency, tout;
STREAM_TO_UINT16(min, pp);
STREAM_TO_UINT16(max, pp);
STREAM_TO_UINT16(latency, pp);
STREAM_TO_UINT16(tout, pp);
// Make sure both min, and max are bigger than 11.25ms, lower values can
// introduce
// audio issues if A2DP is also active.
if (min < BTM_BLE_CONN_INT_MIN_LIMIT) min = BTM_BLE_CONN_INT_MIN_LIMIT;
if (max < BTM_BLE_CONN_INT_MIN_LIMIT) max = BTM_BLE_CONN_INT_MIN_LIMIT;
// If the device has no preferred connection timeout, use the default.
if (tout == BTM_BLE_CONN_PARAM_UNDEF) tout = BTM_BLE_CONN_TIMEOUT_DEF;
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
if (interop_match_addr(INTEROP_HID_PREF_CONN_SUP_TIMEOUT_3S,
(RawAddress*)&p_dev_cb->addr) == true) {
if (tout < 300) tout = 300;
}
BTM_BleSetPrefConnParams(p_dev_cb->addr, min, max, latency, tout);
L2CA_UpdateBleConnParams(p_dev_cb->addr, min, max, latency, tout);
}
/*******************************************************************************
*
* Function bta_hh_le_search_hid_chars
*
* Description This function discover all characteristics a service and
* all descriptors available.
*
* Parameters:
*
******************************************************************************/
static void bta_hh_le_search_hid_chars(tBTA_HH_DEV_CB* p_dev_cb,
tBTA_GATTC_SERVICE* service) {
tBTA_HH_LE_RPT* p_rpt;
for (list_node_t* cn = list_begin(service->characteristics);
cn != list_end(service->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC* p_char =
(tBTA_GATTC_CHARACTERISTIC*)list_node(cn);
if (p_char->uuid.len != LEN_UUID_16) continue;
LOG_DEBUG(LOG_TAG, "%s: %s 0x%04d", __func__,
bta_hh_uuid_to_str(p_char->uuid.uu.uuid16),
p_char->uuid.uu.uuid16);
switch (p_char->uuid.uu.uuid16) {
case GATT_UUID_HID_CONTROL_POINT:
p_dev_cb->hid_srvc.control_point_handle = p_char->handle;
break;
case GATT_UUID_HID_INFORMATION:
/* only one instance per HID service */
gatt_queue_read_op(GATT_READ_CHAR, p_dev_cb->conn_id, p_char->handle,
read_hid_info_cb, p_dev_cb);
break;
case GATT_UUID_HID_REPORT_MAP:
/* only one instance per HID service */
gatt_queue_read_op(GATT_READ_CHAR, p_dev_cb->conn_id, p_char->handle,
read_hid_report_map_cb, p_dev_cb);
/* descriptor is optional */
bta_hh_le_read_char_descriptor(p_dev_cb, p_char->handle,
GATT_UUID_EXT_RPT_REF_DESCR,
read_ext_rpt_ref_desc_cb, p_dev_cb);
break;
case GATT_UUID_HID_REPORT:
p_rpt = bta_hh_le_find_alloc_report_entry(
p_dev_cb, p_dev_cb->hid_srvc.srvc_inst_id, GATT_UUID_HID_REPORT,
p_char->handle);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("%s: Add report entry failed !!!", __func__);
break;
}
if (p_rpt->rpt_type != BTA_HH_RPTT_INPUT) break;
bta_hh_le_read_char_descriptor(p_dev_cb, p_char->handle,
GATT_UUID_RPT_REF_DESCR,
read_report_ref_desc_cb, p_dev_cb);
break;
/* found boot mode report types */
case GATT_UUID_HID_BT_KB_OUTPUT:
case GATT_UUID_HID_BT_MOUSE_INPUT:
case GATT_UUID_HID_BT_KB_INPUT:
if (bta_hh_le_find_alloc_report_entry(p_dev_cb, service->handle,
p_char->uuid.uu.uuid16,
p_char->handle) == NULL)
APPL_TRACE_ERROR("%s: Add report entry failed !!!", __func__);
break;
default:
APPL_TRACE_DEBUG("%s: not processing %s 0x%04d", __func__,
bta_hh_uuid_to_str(p_char->uuid.uu.uuid16),
p_char->uuid.uu.uuid16);
}
}
/* Make sure PROTO_MODE is processed as last */
for (list_node_t* cn = list_begin(service->characteristics);
cn != list_end(service->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC* p_char =
(tBTA_GATTC_CHARACTERISTIC*)list_node(cn);
if (p_char->uuid.len == LEN_UUID_16 &&
p_char->uuid.uu.uuid16 == GATT_UUID_HID_PROTO_MODE) {
p_dev_cb->hid_srvc.proto_mode_handle = p_char->handle;
bta_hh_le_set_protocol_mode(p_dev_cb, p_dev_cb->mode);
break;
}
}
}
/*******************************************************************************
*
* Function bta_hh_le_srvc_search_cmpl
*
* Description This function process the GATT service search complete.
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_srvc_search_cmpl(tBTA_GATTC_SEARCH_CMPL* p_data) {
tBTA_HH_DEV_CB* p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->conn_id);
/* service search exception or no HID service is supported on remote */
if (p_dev_cb == NULL) return;
if (p_data->status != BTA_GATT_OK) {
p_dev_cb->status = BTA_HH_ERR_SDP;
/* close the connection and report service discovery complete with error */
bta_hh_le_api_disc_act(p_dev_cb);
return;
}
const list_t* services = BTA_GATTC_GetServices(p_data->conn_id);
bool have_hid = false;
for (list_node_t* sn = list_begin(services); sn != list_end(services);
sn = list_next(sn)) {
tBTA_GATTC_SERVICE* service = (tBTA_GATTC_SERVICE*)list_node(sn);
if (service->uuid.uu.uuid16 == UUID_SERVCLASS_LE_HID &&
service->is_primary && !have_hid) {
have_hid = true;
/* found HID primamry service */
p_dev_cb->hid_srvc.in_use = true;
p_dev_cb->hid_srvc.srvc_inst_id = service->handle;
p_dev_cb->hid_srvc.proto_mode_handle = 0;
p_dev_cb->hid_srvc.control_point_handle = 0;
bta_hh_le_search_hid_chars(p_dev_cb, service);
APPL_TRACE_DEBUG("%s: have HID service inst_id= %d", __func__,
p_dev_cb->hid_srvc.srvc_inst_id);
} else if (service->uuid.uu.uuid16 == UUID_SERVCLASS_SCAN_PARAM) {
p_dev_cb->scan_refresh_char_handle = 0;
for (list_node_t* cn = list_begin(service->characteristics);
cn != list_end(service->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC* p_char =
(tBTA_GATTC_CHARACTERISTIC*)list_node(cn);
if (p_char->uuid.len == LEN_UUID_16 &&
p_char->uuid.uu.uuid16 == GATT_UUID_SCAN_REFRESH) {
p_dev_cb->scan_refresh_char_handle = p_char->handle;
if (p_char->properties & BTA_GATT_CHAR_PROP_BIT_NOTIFY)
p_dev_cb->scps_notify |= BTA_HH_LE_SCPS_NOTIFY_SPT;
else
p_dev_cb->scps_notify = BTA_HH_LE_SCPS_NOTIFY_NONE;
break;
}
}
} else if (service->uuid.uu.uuid16 == UUID_SERVCLASS_GAP_SERVER) {
// TODO(jpawlowski): this should be done by GAP profile, remove when GAP
// is fixed.
for (list_node_t* cn = list_begin(service->characteristics);
cn != list_end(service->characteristics); cn = list_next(cn)) {
tBTA_GATTC_CHARACTERISTIC* p_char =
(tBTA_GATTC_CHARACTERISTIC*)list_node(cn);
if (p_char->uuid.len == LEN_UUID_16 &&
p_char->uuid.uu.uuid16 == GATT_UUID_GAP_PREF_CONN_PARAM) {
/* read the char value */
gatt_queue_read_op(GATT_READ_CHAR, p_dev_cb->conn_id, p_char->handle,
read_pref_conn_params_cb, p_dev_cb);
break;
}
}
}
}
bta_hh_le_gatt_disc_cmpl(p_dev_cb, p_dev_cb->status);
}
/*******************************************************************************
*
* Function bta_hh_le_input_rpt_notify
*
* Description process the notificaton event, most likely for input report.
*
* Parameters:
*
******************************************************************************/
void bta_hh_le_input_rpt_notify(tBTA_GATTC_NOTIFY* p_data) {
tBTA_HH_DEV_CB* p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->conn_id);
uint8_t app_id;
uint8_t* p_buf;
tBTA_HH_LE_RPT* p_rpt;
if (p_dev_cb == NULL) {
APPL_TRACE_ERROR(
"%s: notification received from Unknown device, conn_id: 0x%04x",
__func__, p_data->conn_id);
return;
}
const tBTA_GATTC_CHARACTERISTIC* p_char =
BTA_GATTC_GetCharacteristic(p_dev_cb->conn_id, p_data->handle);
if (p_char == NULL) {
APPL_TRACE_ERROR(
"%s: notification received for Unknown Characteristic, conn_id: "
"0x%04x, handle: 0x%04x",
__func__, p_dev_cb->conn_id, p_data->handle);
return;
}
app_id = p_dev_cb->app_id;
p_rpt = bta_hh_le_find_report_entry(p_dev_cb, p_dev_cb->hid_srvc.srvc_inst_id,
p_char->uuid.uu.uuid16, p_char->handle);
if (p_rpt == NULL) {
APPL_TRACE_ERROR(
"%s: notification received for Unknown Report, uuid: 0x%04x, handle: "
"0x%04x",
__func__, p_char->uuid.uu.uuid16, p_char->handle);
return;
}
if (p_char->uuid.uu.uuid16 == GATT_UUID_HID_BT_MOUSE_INPUT)
app_id = BTA_HH_APP_ID_MI;
else if (p_char->uuid.uu.uuid16 == GATT_UUID_HID_BT_KB_INPUT)
app_id = BTA_HH_APP_ID_KB;
APPL_TRACE_DEBUG("Notification received on report ID: %d", p_rpt->rpt_id);
/* need to append report ID to the head of data */
if (p_rpt->rpt_id != 0) {
p_buf = (uint8_t*)osi_malloc(p_data->len + 1);
p_buf[0] = p_rpt->rpt_id;
memcpy(&p_buf[1], p_data->value, p_data->len);
++p_data->len;
} else {
p_buf = p_data->value;
}
bta_hh_co_data((uint8_t)p_dev_cb->hid_handle, p_buf, p_data->len,
p_dev_cb->mode, 0, /* no sub class*/
p_dev_cb->dscp_info.ctry_code, p_dev_cb->addr, app_id);
if (p_buf != p_data->value) osi_free(p_buf);
}
/*******************************************************************************
*
* Function bta_hh_gatt_open_fail
*
* Description action function to process the open fail
*
* Returns void
*
******************************************************************************/
void bta_hh_le_open_fail(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CONN conn_dat;
/* open failure in the middle of service discovery, clear all services */
if (p_cb->disc_active & BTA_HH_LE_DISC_HIDS) {
bta_hh_clear_service_cache(p_cb);
}
p_cb->disc_active = BTA_HH_LE_DISC_NONE;
/* Failure in opening connection or GATT discovery failure */
conn_dat.handle = p_cb->hid_handle;
conn_dat.bda = p_cb->addr;
conn_dat.le_hid = true;
conn_dat.scps_supported = p_cb->scps_supported;
if (p_cb->status == BTA_HH_OK)
conn_dat.status = (p_data->le_close.reason == BTA_GATT_CONN_UNKNOWN)
? p_cb->status
: BTA_HH_ERR;
else
conn_dat.status = p_cb->status;
/* Report OPEN fail event */
(*bta_hh_cb.p_cback)(BTA_HH_OPEN_EVT, (tBTA_HH*)&conn_dat);
}
/*******************************************************************************
*
* Function bta_hh_gatt_close
*
* Description action function to process the GATT close int he state
* machine.
*
* Returns void
*
******************************************************************************/
void bta_hh_gatt_close(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
tBTA_HH_CBDATA disc_dat = {BTA_HH_OK, 0};
/* deregister all notification */
bta_hh_le_deregister_input_notif(p_cb);
/* finaliza device driver */
bta_hh_co_close(p_cb->hid_handle, p_cb->app_id);
/* update total conn number */
bta_hh_cb.cnt_num--;
disc_dat.handle = p_cb->hid_handle;
disc_dat.status = p_cb->status;
(*bta_hh_cb.p_cback)(BTA_HH_CLOSE_EVT, (tBTA_HH*)&disc_dat);
/* 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();
} else {
#if (BTA_HH_LE_RECONN == TRUE)
if (p_data->le_close.reason == BTA_GATT_CONN_TIMEOUT) {
bta_hh_le_add_dev_bg_conn(p_cb, false);
}
#endif
}
return;
}
/*******************************************************************************
*
* Function bta_hh_le_api_disc_act
*
* Description initaite a Close API to a remote HID device
*
* Returns void
*
******************************************************************************/
void bta_hh_le_api_disc_act(tBTA_HH_DEV_CB* p_cb) {
if (p_cb->conn_id != BTA_GATT_INVALID_CONN_ID) {
gatt_op_queue_clean(p_cb->conn_id);
BTA_GATTC_Close(p_cb->conn_id);
/* remove device from background connection if intended to disconnect,
do not allow reconnection */
bta_hh_le_remove_dev_bg_conn(p_cb);
}
}
/*******************************************************************************
*
* Function read_report_cb
*
* Description Process the Read report complete, send GET_REPORT_EVT to
* application with the report data.
*
* Parameters:
*
******************************************************************************/
static void read_report_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len, uint8_t* value,
void* data) {
const tBTA_GATTC_CHARACTERISTIC* p_char =
BTA_GATTC_GetCharacteristic(conn_id, handle);
if (p_char == NULL) return;
uint16_t char_uuid = p_char->uuid.uu.uuid16;
if (char_uuid != GATT_UUID_HID_REPORT &&
char_uuid != GATT_UUID_HID_BT_KB_INPUT &&
char_uuid != GATT_UUID_HID_BT_KB_OUTPUT &&
char_uuid != GATT_UUID_HID_BT_MOUSE_INPUT &&
char_uuid != GATT_UUID_BATTERY_LEVEL) {
APPL_TRACE_ERROR("%s: Unexpected Read UUID: 0x%04x", __func__, char_uuid);
return;
}
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
if (p_dev_cb->w4_evt != BTA_HH_GET_RPT_EVT) {
APPL_TRACE_ERROR("Unexpected READ cmpl, w4_evt = %d", p_dev_cb->w4_evt);
return;
}
/* GET_REPORT */
BT_HDR* p_buf = NULL;
tBTA_HH_LE_RPT* p_rpt;
tBTA_HH_HSDATA hs_data;
uint8_t* pp;
memset(&hs_data, 0, sizeof(hs_data));
hs_data.status = BTA_HH_ERR;
hs_data.handle = p_dev_cb->hid_handle;
if (status == BTA_GATT_OK) {
p_rpt = bta_hh_le_find_report_entry(p_dev_cb, p_char->service->handle,
p_char->uuid.uu.uuid16, p_char->handle);
if (p_rpt != NULL && len) {
p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR) + len + 1);
/* pack data send to app */
hs_data.status = BTA_HH_OK;
p_buf->len = len + 1;
p_buf->layer_specific = 0;
p_buf->offset = 0;
/* attach report ID as the first byte of the report before sending it to
* USB HID driver */
pp = (uint8_t*)(p_buf + 1);
UINT8_TO_STREAM(pp, p_rpt->rpt_id);
memcpy(pp, value, len);
hs_data.rsp_data.p_rpt_data = p_buf;
}
}
p_dev_cb->w4_evt = 0;
(*bta_hh_cb.p_cback)(BTA_HH_GET_RPT_EVT, (tBTA_HH*)&hs_data);
osi_free_and_reset((void**)&p_buf);
}
/*******************************************************************************
*
* Function bta_hh_le_get_rpt
*
* Description GET_REPORT on a LE HID Report
*
* Returns void
*
******************************************************************************/
void bta_hh_le_get_rpt(tBTA_HH_DEV_CB* p_cb, tBTA_HH_RPT_TYPE r_type,
uint8_t rpt_id) {
tBTA_HH_LE_RPT* p_rpt = bta_hh_le_find_rpt_by_idtype(
p_cb->hid_srvc.report, p_cb->mode, r_type, rpt_id);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("%s: no matching report", __func__);
return;
}
p_cb->w4_evt = BTA_HH_GET_RPT_EVT;
gatt_queue_read_op(GATT_READ_CHAR, p_cb->conn_id, p_rpt->char_inst_id,
read_report_cb, p_cb);
}
static void write_report_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, void* data) {
tBTA_HH_CBDATA cback_data;
tBTA_HH_DEV_CB* p_dev_cb = (tBTA_HH_DEV_CB*)data;
uint16_t cb_evt = p_dev_cb->w4_evt;
if (cb_evt == 0) return;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("bta_hh_le_write_cmpl w4_evt: %d", p_dev_cb->w4_evt);
#endif
const tBTA_GATTC_CHARACTERISTIC* p_char =
BTA_GATTC_GetCharacteristic(conn_id, handle);
uint16_t uuid = p_char->uuid.uu.uuid16;
if (uuid != GATT_UUID_HID_REPORT && uuid != GATT_UUID_HID_BT_KB_INPUT &&
uuid != GATT_UUID_HID_BT_MOUSE_INPUT &&
uuid != GATT_UUID_HID_BT_KB_OUTPUT) {
return;
}
/* Set Report finished */
cback_data.handle = p_dev_cb->hid_handle;
cback_data.status = (status == BTA_GATT_OK) ? BTA_HH_OK : BTA_HH_ERR;
p_dev_cb->w4_evt = 0;
(*bta_hh_cb.p_cback)(cb_evt, (tBTA_HH*)&cback_data);
}
/*******************************************************************************
*
* Function bta_hh_le_write_rpt
*
* Description SET_REPORT/or DATA output on a LE HID Report
*
* Returns void
*
******************************************************************************/
void bta_hh_le_write_rpt(tBTA_HH_DEV_CB* p_cb, tBTA_HH_RPT_TYPE r_type,
BT_HDR* p_buf, uint16_t w4_evt) {
tBTA_HH_LE_RPT* p_rpt;
uint8_t rpt_id;
if (p_buf == NULL || p_buf->len == 0) {
APPL_TRACE_ERROR("%s: Illegal data", __func__);
return;
}
/* strip report ID from the data */
uint8_t* vec_start = (uint8_t*)(p_buf + 1) + p_buf->offset;
STREAM_TO_UINT8(rpt_id, vec_start);
vector<uint8_t> value(vec_start, vec_start + p_buf->len - 1);
p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc.report, p_cb->mode,
r_type, rpt_id);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("%s: no matching report", __func__);
osi_free(p_buf);
return;
}
p_cb->w4_evt = w4_evt;
const tBTA_GATTC_CHARACTERISTIC* p_char =
BTA_GATTC_GetCharacteristic(p_cb->conn_id, p_rpt->char_inst_id);
tBTA_GATTC_WRITE_TYPE write_type = BTA_GATTC_TYPE_WRITE;
if (p_char && (p_char->properties & BTA_GATT_CHAR_PROP_BIT_WRITE_NR))
write_type = BTA_GATTC_TYPE_WRITE_NO_RSP;
gatt_queue_write_op(GATT_WRITE_CHAR, p_cb->conn_id, p_rpt->char_inst_id,
std::move(value), write_type, write_report_cb, p_cb);
}
/*******************************************************************************
*
* Function bta_hh_le_suspend
*
* Description send LE suspend or exit suspend mode to remote device.
*
* Returns void
*
******************************************************************************/
void bta_hh_le_suspend(tBTA_HH_DEV_CB* p_cb,
tBTA_HH_TRANS_CTRL_TYPE ctrl_type) {
ctrl_type -= BTA_HH_CTRL_SUSPEND;
// We don't care about response
gatt_queue_write_op(GATT_WRITE_CHAR, p_cb->conn_id,
p_cb->hid_srvc.control_point_handle, {(uint8_t)ctrl_type},
BTA_GATTC_TYPE_WRITE_NO_RSP, NULL, NULL);
}
/*******************************************************************************
*
* Function bta_hh_le_write_dev_act
*
* Description Write LE device action. can be SET/GET/DATA transaction.
*
* Returns void
*
******************************************************************************/
void bta_hh_le_write_dev_act(tBTA_HH_DEV_CB* p_cb, tBTA_HH_DATA* p_data) {
switch (p_data->api_sndcmd.t_type) {
case HID_TRANS_SET_PROTOCOL:
p_cb->w4_evt = BTA_HH_SET_PROTO_EVT;
bta_hh_le_set_protocol_mode(p_cb, p_data->api_sndcmd.param);
break;
case HID_TRANS_GET_PROTOCOL:
bta_hh_le_get_protocol_mode(p_cb);
break;
case HID_TRANS_GET_REPORT:
bta_hh_le_get_rpt(p_cb, p_data->api_sndcmd.param,
p_data->api_sndcmd.rpt_id);
break;
case HID_TRANS_SET_REPORT:
bta_hh_le_write_rpt(p_cb, p_data->api_sndcmd.param,
p_data->api_sndcmd.p_data, BTA_HH_SET_RPT_EVT);
break;
case HID_TRANS_DATA: /* output report */
bta_hh_le_write_rpt(p_cb, p_data->api_sndcmd.param,
p_data->api_sndcmd.p_data, BTA_HH_DATA_EVT);
break;
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_SUSPEND ||
p_data->api_sndcmd.param == BTA_HH_CTRL_EXIT_SUSPEND) {
bta_hh_le_suspend(p_cb, p_data->api_sndcmd.param);
}
break;
default:
APPL_TRACE_ERROR("%s unsupported transaction for BLE HID device: %d",
__func__, p_data->api_sndcmd.t_type);
break;
}
}
/*******************************************************************************
*
* Function bta_hh_le_get_dscp_act
*
* Description Send ReportDescriptor to application for all HID services.
*
* Returns void
*
******************************************************************************/
void bta_hh_le_get_dscp_act(tBTA_HH_DEV_CB* p_cb) {
if (p_cb->hid_srvc.in_use) {
p_cb->dscp_info.descriptor.dl_len = p_cb->hid_srvc.descriptor.dl_len;
p_cb->dscp_info.descriptor.dsc_list = p_cb->hid_srvc.descriptor.dsc_list;
(*bta_hh_cb.p_cback)(BTA_HH_GET_DSCP_EVT, (tBTA_HH*)&p_cb->dscp_info);
}
}
/*******************************************************************************
*
* Function bta_hh_le_add_dev_bg_conn
*
* Description Remove a LE HID device from back ground connection
* procedure.
*
* Returns void
*
******************************************************************************/
static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB* p_cb, bool check_bond) {
uint8_t sec_flag = 0;
bool to_add = true;
if (check_bond) {
/* start reconnection if remote is a bonded device */
/* verify bond */
BTM_GetSecurityFlagsByTransport(p_cb->addr, &sec_flag, BT_TRANSPORT_LE);
if ((sec_flag & BTM_SEC_FLAG_LKEY_KNOWN) == 0) to_add = false;
}
if (/*p_cb->dscp_info.flag & BTA_HH_LE_NORMAL_CONN &&*/
!p_cb->in_bg_conn && to_add) {
/* add device into BG connection to accept remote initiated connection */
BTA_GATTC_Open(bta_hh_cb.gatt_if, p_cb->addr, false, BTA_GATT_TRANSPORT_LE,
false);
p_cb->in_bg_conn = true;
BTA_DmBleStartAutoConn();
}
return;
}
/*******************************************************************************
*
* Function bta_hh_le_add_device
*
* Description Add a LE HID device as a known device, and also add the
* address
* into back ground connection WL for incoming connection.
*
* Returns void
*
******************************************************************************/
uint8_t bta_hh_le_add_device(tBTA_HH_DEV_CB* p_cb,
tBTA_HH_MAINT_DEV* p_dev_info) {
p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
bta_hh_cb.le_cb_index[BTA_HH_GET_LE_CB_IDX(p_cb->hid_handle)] = p_cb->index;
/* 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);
/* add to BTA device list */
bta_hh_add_device_to_list(
p_cb, p_cb->hid_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);
bta_hh_le_add_dev_bg_conn(p_cb, false);
return p_cb->hid_handle;
}
/*******************************************************************************
*
* Function bta_hh_le_remove_dev_bg_conn
*
* Description Remove a LE HID device from back ground connection
* procedure.
*
* Returns void
*
******************************************************************************/
void bta_hh_le_remove_dev_bg_conn(tBTA_HH_DEV_CB* p_dev_cb) {
if (p_dev_cb->in_bg_conn) {
p_dev_cb->in_bg_conn = false;
BTA_GATTC_CancelOpen(bta_hh_cb.gatt_if, p_dev_cb->addr, false);
}
/* deregister all notifications */
bta_hh_le_deregister_input_notif(p_dev_cb);
}
/*******************************************************************************
*
* Function bta_hh_gattc_callback
*
* Description This is GATT client callback function used in BTA HH.
*
* Parameters:
*
******************************************************************************/
static void bta_hh_gattc_callback(tBTA_GATTC_EVT event, tBTA_GATTC* p_data) {
tBTA_HH_DEV_CB* p_dev_cb;
#if (BTA_HH_DEBUG == TRUE)
APPL_TRACE_DEBUG("bta_hh_gattc_callback event = %d", event);
#endif
if (p_data == NULL) return;
switch (event) {
case BTA_GATTC_DEREG_EVT: /* 1 */
bta_hh_cleanup_disable(p_data->reg_oper.status);
break;
case BTA_GATTC_OPEN_EVT: /* 2 */
p_dev_cb = bta_hh_le_find_dev_cb_by_bda(p_data->open.remote_bda);
if (p_dev_cb) {
bta_hh_sm_execute(p_dev_cb, BTA_HH_GATT_OPEN_EVT,
(tBTA_HH_DATA*)&p_data->open);
}
break;
case BTA_GATTC_CLOSE_EVT: /* 5 */
bta_hh_le_close(&p_data->close);
break;
case BTA_GATTC_SEARCH_CMPL_EVT: /* 6 */
bta_hh_le_srvc_search_cmpl(&p_data->search_cmpl);
break;
case BTA_GATTC_NOTIF_EVT: /* 10 */
bta_hh_le_input_rpt_notify(&p_data->notify);
break;
case BTA_GATTC_ENC_CMPL_CB_EVT: /* 17 */
p_dev_cb = bta_hh_le_find_dev_cb_by_bda(p_data->enc_cmpl.remote_bda);
if (p_dev_cb) {
bta_hh_sm_execute(p_dev_cb, BTA_HH_GATT_ENC_CMPL_EVT,
(tBTA_HH_DATA*)&p_data->enc_cmpl);
}
break;
default:
break;
}
}
static void read_report_descriptor_ccc_cb(uint16_t conn_id, tGATT_STATUS status,
uint16_t handle, uint16_t len,
uint8_t* value, void* data) {
tBTA_HH_LE_RPT* p_rpt = (tBTA_HH_LE_RPT*)data;
uint8_t* pp = value;
STREAM_TO_UINT16(p_rpt->client_cfg_value, pp);
APPL_TRACE_DEBUG("Read Client Configuration: 0x%04x",
p_rpt->client_cfg_value);
}
/*******************************************************************************
*
* Function bta_hh_le_hid_read_rpt_clt_cfg
*
* Description a test command to read report descriptor client
* configuration
*
* Returns void
*
******************************************************************************/
void bta_hh_le_hid_read_rpt_clt_cfg(const RawAddress& bd_addr, uint8_t rpt_id) {
tBTA_HH_DEV_CB* p_cb = NULL;
tBTA_HH_LE_RPT* p_rpt;
uint8_t index = BTA_HH_IDX_INVALID;
index = bta_hh_find_cb(bd_addr);
if (index == BTA_HH_IDX_INVALID) {
APPL_TRACE_ERROR("%s: unknown device", __func__);
return;
}
p_cb = &bta_hh_cb.kdev[index];
p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc.report, p_cb->mode,
BTA_HH_RPTT_INPUT, rpt_id);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("%s: no matching report", __func__);
return;
}
bta_hh_le_read_char_descriptor(p_cb, p_rpt->char_inst_id,
GATT_UUID_CHAR_CLIENT_CONFIG,
read_report_descriptor_ccc_cb, p_rpt);
return;
}
/*******************************************************************************
*
* Function bta_hh_process_cache_rpt
*
* Description Process the cached reports
*
* Parameters:
*
******************************************************************************/
// TODO(jpawlowski): uncomment when fixed
// static void bta_hh_process_cache_rpt (tBTA_HH_DEV_CB *p_cb,
// tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache,
// uint8_t num_rpt)
// {
// uint8_t i = 0;
// tBTA_HH_LE_RPT *p_rpt;
// if (num_rpt != 0) /* no cache is found */
// {
// p_cb->hid_srvc.in_use = true;
// /* set the descriptor info */
// p_cb->hid_srvc.descriptor.dl_len =
// p_cb->dscp_info.descriptor.dl_len;
// p_cb->hid_srvc.descriptor.dsc_list =
// p_cb->dscp_info.descriptor.dsc_list;
// for (; i <num_rpt; i ++, p_rpt_cache ++)
// {
// if ((p_rpt = bta_hh_le_find_alloc_report_entry (p_cb,
// p_rpt_cache->srvc_inst_id,
// p_rpt_cache->rpt_uuid,
// p_rpt_cache->char_inst_id,
// p_rpt_cache->prop)) == NULL)
// {
// APPL_TRACE_ERROR("bta_hh_process_cache_rpt: allocation report
// entry failure");
// break;
// }
// else
// {
// p_rpt->rpt_type = p_rpt_cache->rpt_type;
// p_rpt->rpt_id = p_rpt_cache->rpt_id;
// if (p_rpt->uuid == GATT_UUID_HID_BT_KB_INPUT ||
// p_rpt->uuid == GATT_UUID_HID_BT_MOUSE_INPUT ||
// (p_rpt->uuid == GATT_UUID_HID_REPORT && p_rpt->rpt_type
// == BTA_HH_RPTT_INPUT))
// {
// p_rpt->client_cfg_value =
// BTA_GATT_CLT_CONFIG_NOTIFICATION;
// }
// }
// }
// }
// }
#endif