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esp-idf/components/bt/bluedroid/bta/hh/bta_hh_le.c
Hrishikesh Dhayagude 4a7d445301 components/bt examples/bluetooth: Fix typographical errors 
Signed-off-by: Hrishikesh Dhayagude <hrishi@espressif.com>
2018-02-13 13:25:33 +05:30

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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.
*
******************************************************************************/
#include "bta_api.h"
#include "bta_hh_int.h"
#if (defined BTA_HH_LE_INCLUDED && BTA_HH_LE_INCLUDED == TRUE)
#include "bta_api.h"
#include <string.h>
#include "btm_api.h"
#include "btm_ble_api.h"
#include "bta_hh_co.h"
#include "bta_gatt_api.h"
#include "srvc_api.h"
#include "btm_int.h"
#include "utl.h"
#define LOG_TAG "bt_bta_hh"
#include "osi/include/log.h"
#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_RPT_INST_ID_MAP(s,c) (UINT8)(((s)<<4)|(c))
#define BTA_HH_LE_RPT_GET_SRVC_INST_ID(x) (UINT8)(x >> 4)
#define BTA_HH_LE_RPT_GET_RPT_INST_ID(x) (UINT8)(x & 0x0f)
#define BTA_HH_LE_PROTO_BOOT_MODE 0x00
#define BTA_HH_LE_PROTO_REPORT_MODE 0x01
#define BTA_HH_SCPP_INST_DEF 0
#define BTA_HH_LE_DISC_CHAR_NUM 8
static const UINT16 bta_hh_le_disc_char_uuid[BTA_HH_LE_DISC_CHAR_NUM] = {
GATT_UUID_HID_INFORMATION,
GATT_UUID_HID_REPORT_MAP,
GATT_UUID_HID_CONTROL_POINT,
GATT_UUID_HID_REPORT,
GATT_UUID_HID_BT_KB_INPUT,
GATT_UUID_HID_BT_KB_OUTPUT,
GATT_UUID_HID_BT_MOUSE_INPUT,
GATT_UUID_HID_PROTO_MODE /* always make sure this is the last attribute to discover */
};
#define BTA_LE_HID_RTP_UUID_MAX 5
static const UINT16 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_search_hid_chars(tBTA_HH_DEV_CB *p_dev_cb);
static void bta_hh_le_search_hid_included(tBTA_HH_DEV_CB *p_dev_cb);
static void bta_hh_le_search_scps(tBTA_HH_DEV_CB *p_cb);
static void bta_hh_le_search_scps_chars(tBTA_HH_DEV_CB *p_cb);
static void bta_hh_le_register_scpp_notif(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status);
static void bta_hh_le_register_scpp_notif_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status);
static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB *p_cb, BOOLEAN check_bond);
static void bta_hh_process_cache_rpt (tBTA_HH_DEV_CB *p_cb,
tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache,
UINT8 num_rpt);
#define BTA_HH_LE_SRVC_DEF 0
#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)
{
UINT8 i , j;
tBTA_HH_LE_RPT *p_rpt;
char *rpt_name;
APPL_TRACE_DEBUG("HID Report DB");
for (i = 0; i < BTA_HH_LE_HID_SRVC_MAX; i ++) {
if (p_cb->hid_srvc[i].in_use) {
p_rpt = &p_cb->hid_srvc[i].report[0];
APPL_TRACE_DEBUG("\t HID serivce inst: %d", i);
for (j = 0; j < BTA_HH_LE_RPT_MAX; j ++, p_rpt++) {
rpt_name = "Unknown";
if (p_rpt->in_use) {
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] [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->inst_id,
p_rpt->client_cfg_value);
} else {
break;
}
}
} else {
break;
}
}
}
/*******************************************************************************
**
** Function bta_hh_uuid_to_str
**
** Description
**
** Returns void
**
*******************************************************************************/
static char *bta_hh_uuid_to_str(UINT16 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)
{
char app_name[LEN_UUID_128 + 1];
tBT_UUID app_uuid = {LEN_UUID_128, {0}};
UINT8 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;
}
memset (app_name, 0, LEN_UUID_128 + 1);
strncpy(app_name, "BTA HH OVER LE", LEN_UUID_128);
memcpy((void *)app_uuid.uu.uuid128, (void *)app_name, LEN_UUID_128);
BTA_GATTC_AppRegister(&app_uuid, bta_hh_gattc_callback);
return;
}
/*******************************************************************************
**
** Function bta_hh_le_register_cmpl
**
** Description BTA HH register with BTA GATTC completed
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_register_cmpl(tBTA_GATTC_REG *p_reg)
{
tBTA_HH_STATUS status = BTA_HH_ERR;
if (p_reg->status == BTA_GATT_OK) {
bta_hh_cb.gatt_if = p_reg->client_if;
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
**
*******************************************************************************/
BOOLEAN 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:
**
*******************************************************************************/
BOOLEAN bta_hh_is_le_device(tBTA_HH_DEV_CB *p_cb, BD_ADDR remote_bda)
{
p_cb->is_le_device = BTM_UseLeLink (remote_bda);
return p_cb->is_le_device;
}
/*******************************************************************************
**
** Function bta_hh_le_add_hid_srvc_entry
**
** Description Add a HID service entry in the HID device control block
**
** Parameters:
**
*******************************************************************************/
BOOLEAN bta_hh_le_add_hid_srvc_entry(tBTA_HH_DEV_CB *p_dev_cb, UINT8 idx)
{
BOOLEAN added = FALSE;
if (idx < BTA_HH_LE_HID_SRVC_MAX) {
p_dev_cb->hid_srvc[idx].in_use = TRUE;
added = TRUE;
} else {
APPL_TRACE_ERROR("DB full,max HID service entry!");
}
return added;
}
/*******************************************************************************
**
** 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, BD_ADDR remote_bda)
{
/* update cb_index[] map */
p_cb->hid_handle = BTA_HH_GET_LE_DEV_HDL(p_cb->index);
memcpy(p_cb->addr, remote_bda, BD_ADDR_LEN);
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);
}
/*******************************************************************************
**
** Function bta_hh_le_fill_16bits_gatt_id
**
** Description Utility function to fill a GATT ID strucure
**
*******************************************************************************/
void bta_hh_le_fill_16bits_gatt_id(UINT8 inst_id, UINT16 uuid, tBTA_GATT_ID *p_output)
{
p_output->inst_id = inst_id;
p_output->uuid.len = LEN_UUID_16;
p_output->uuid.uu.uuid16 = uuid;
}
/*******************************************************************************
**
** Function bta_hh_le_fill_16bits_srvc_id
**
** Description Utility function to fill a service ID strucure with a 16 bits
** service UUID.
**
*******************************************************************************/
void bta_hh_le_fill_16bits_srvc_id(BOOLEAN is_pri, UINT8 inst_id, UINT16 srvc_uuid,
tBTA_GATT_SRVC_ID *p_output)
{
memset((void *)p_output, 0, sizeof(tBTA_GATT_SRVC_ID));
p_output->is_primary = is_pri;
bta_hh_le_fill_16bits_gatt_id(inst_id, srvc_uuid, &p_output->id);
}
/*******************************************************************************
**
** Function bta_hh_le_fill_16bits_char_id
**
** Description Utility function to fill a char ID strucure with a 16 bits
** char UUID.
**
*******************************************************************************/
void bta_hh_le_fill_16bits_char_id(UINT8 inst_id, UINT16 char_uuid,
tBTA_GATT_ID *p_output)
{
memset((void *)p_output, 0, sizeof(tBTA_GATT_ID));
bta_hh_le_fill_16bits_gatt_id(inst_id, char_uuid, p_output);
}
/*******************************************************************************
**
** 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 conn_id)
{
UINT8 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(BD_ADDR bda)
{
UINT8 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 &&
memcmp(p_dev_cb->addr, bda, BD_ADDR_LEN) == 0) {
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 bta_hh_le_find_service_inst_by_battery_inst_id(tBTA_HH_DEV_CB *p_cb, UINT8 ba_inst_id)
{
UINT8 i;
for (i = 0; i < BTA_HH_LE_HID_SRVC_MAX; i ++) {
if (p_cb->hid_srvc[i].in_use &&
p_cb->hid_srvc[i].incl_srvc_inst == ba_inst_id) {
return i;
}
}
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 srvc_inst_id, /* service instance ID */
UINT16 rpt_uuid,
UINT8 char_inst_id)
{
UINT8 i;
UINT8 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[hid_inst_id].report[0];
for (i = 0; i < BTA_HH_LE_RPT_MAX; i ++, p_rpt ++) {
if (p_rpt->uuid == rpt_uuid &&
p_rpt->inst_id == BTA_HH_LE_RPT_INST_ID_MAP(srvc_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 mode,
tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id)
{
tBTA_HH_LE_RPT *p_rpt = p_head;
UINT8 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 srvc_inst_id,
UINT16 rpt_uuid,
UINT8 inst_id,
UINT8 prop)
{
UINT8 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[hid_inst_id].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->inst_id == BTA_HH_LE_RPT_INST_ID_MAP(srvc_inst_id, inst_id))) {
if (!p_rpt->in_use) {
p_rpt->in_use = TRUE;
p_rpt->index = i;
p_rpt->inst_id = BTA_HH_LE_RPT_INST_ID_MAP(srvc_inst_id, inst_id);
p_rpt->prop = prop;
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;
}
/*******************************************************************************
**
** Function bta_hh_le_read_char_dscrpt
**
** Description read characteristic descriptor
**
*******************************************************************************/
tBTA_HH_STATUS bta_hh_le_read_char_dscrpt(tBTA_HH_DEV_CB *p_cb, UINT16 srvc_uuid, UINT8 srvc_inst_id,
UINT16 char_uuid, UINT8 char_inst_id, UINT16 char_descp_uuid)
{
tBTA_GATTC_CHAR_ID char_id;
tBT_UUID descr_uuid;
tBTA_GATTC_CHAR_DESCR_ID descr_id;
tBTA_HH_STATUS status = BTA_HH_ERR;
bta_hh_le_fill_16bits_srvc_id(TRUE, srvc_inst_id, srvc_uuid, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(char_inst_id, char_uuid, &char_id.char_id);
descr_uuid.len = LEN_UUID_16;
descr_uuid.uu.uuid16 = char_descp_uuid;
/* find the report reference descriptor */
if (BTA_GATTC_GetFirstCharDescr(p_cb->conn_id,
&char_id,
&descr_uuid,
&descr_id) == BTA_GATT_OK) {
BTA_GATTC_ReadCharDescr(p_cb->conn_id,
&descr_id,
BTA_GATT_AUTH_REQ_NONE);
status = BTA_HH_OK;
} else {
#if BTA_HH_DEBUG == TRUE
LOG_WARN("%s No descriptor exists: %s(0x%04x)", __func__,
bta_hh_uuid_to_str(char_descp_uuid), char_descp_uuid);
#endif
}
return status;
}
/*******************************************************************************
**
** Function bta_hh_le_read_rpt_ref_descr
**
** Description read report refernece descriptors in service discovery process
**
*******************************************************************************/
void bta_hh_le_read_rpt_ref_descr(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_LE_RPT *p_rpt)
{
BOOLEAN started = FALSE;
UINT16 srvc_uuid, char_uuid;
while (p_rpt != NULL) {
if (!p_rpt->in_use) {
break;
}
if (p_rpt->rpt_type == BTA_HH_RPTT_INPUT) {
/* is battery report */
if (p_rpt->uuid == GATT_UUID_BATTERY_LEVEL) {
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("read battery level report reference descriptor");
#endif
srvc_uuid = UUID_SERVCLASS_BATTERY;
char_uuid = GATT_UUID_BATTERY_LEVEL;
} else {
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("read HID report reference descriptor");
#endif
srvc_uuid = UUID_SERVCLASS_LE_HID;
char_uuid = GATT_UUID_HID_REPORT;
}
if (bta_hh_le_read_char_dscrpt(p_dev_cb,
srvc_uuid,
BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt->inst_id),
char_uuid,
BTA_HH_LE_RPT_GET_RPT_INST_ID(p_rpt->inst_id),
GATT_UUID_RPT_REF_DESCR)
== BTA_HH_OK) {
started = TRUE;
break;
}
}
if (p_rpt->index == BTA_HH_LE_RPT_MAX - 1) {
break;
}
p_rpt ++;
}
/* if no report reference descriptor */
if (!started) {
/* explore next char */
bta_hh_le_search_hid_chars(p_dev_cb);
}
}
/*******************************************************************************
**
** Function bta_hh_le_save_rpt_ref
**
** Description save report reference information and move to next one.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_save_rpt_ref(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_LE_RPT *p_rpt,
tBTA_GATTC_READ *p_data)
{
UINT8 *pp;
tBTA_HH_RPT_CACHE_ENTRY rpt_entry;
/* if the length of the descriptor value is right, parse it */
if (p_data->status == BTA_GATT_OK &&
p_data->p_value && p_data->p_value->unformat.len == 2) {
pp = p_data->p_value->unformat.p_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("report ID: %d", p_rpt->rpt_id);
#endif
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.prop = p_rpt->prop;
rpt_entry.inst_id = p_rpt->inst_id;
bta_hh_le_co_rpt_info(p_dev_cb->addr,
&rpt_entry,
p_dev_cb->app_id);
} else if (p_data->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 (p_rpt->index < BTA_HH_LE_RPT_MAX - 1) {
p_rpt ++;
} else {
p_rpt = NULL;
}
/* read next report reference descriptor */
bta_hh_le_read_rpt_ref_descr(p_dev_cb, p_rpt);
}
/*******************************************************************************
**
** Function bta_hh_le_save_rpt_ref
**
** Description save report reference information and move to next one.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_save_ext_rpt_ref(tBTA_HH_DEV_CB *p_dev_cb,
tBTA_GATTC_READ *p_data)
{
UINT8 *pp;
/* if the length of the descriptor value is right, parse it
assume it's a 16 bits UUID */
if (p_data->status == BTA_GATT_OK &&
p_data->p_value && p_data->p_value->unformat.len == 2) {
pp = p_data->p_value->unformat.p_value;
STREAM_TO_UINT16(p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].ext_rpt_ref, pp);
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("External Report Reference UUID 0x%04x",
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].ext_rpt_ref);
#endif
}
bta_hh_le_search_hid_chars(p_dev_cb);
}
/*******************************************************************************
**
** 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 srvc_inst,
UINT8 proto_mode, BOOLEAN register_ba)
{
tBTA_HH_LE_RPT *p_rpt = &p_dev_cb->hid_srvc[srvc_inst].report[0];
tBTA_GATTC_CHAR_ID char_id;
UINT8 i;
UINT16 srvc_uuid;
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_hh_le_register_input_notif mode: %d", proto_mode);
#endif
for (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_BATTERY_LEVEL) {
srvc_uuid = UUID_SERVCLASS_BATTERY;
} else {
srvc_uuid = UUID_SERVCLASS_LE_HID;
}
bta_hh_le_fill_16bits_srvc_id(TRUE, BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt->inst_id), srvc_uuid, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(BTA_HH_LE_RPT_GET_RPT_INST_ID(p_rpt->inst_id), p_rpt->uuid, &char_id.char_id);
if (register_ba && p_rpt->uuid == GATT_UUID_BATTERY_LEVEL) {
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if,
p_dev_cb->addr,
&char_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("---> Deregister Report ID: %d", p_rpt->rpt_id);
BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if,
p_dev_cb->addr,
&char_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("<--- Register Boot Report ID: %d", p_rpt->rpt_id);
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if,
p_dev_cb->addr,
&char_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("---> Deregister Boot Report ID: %d", p_rpt->rpt_id);
BTA_GATTC_DeregisterForNotifications(bta_hh_cb.gatt_if,
p_dev_cb->addr,
&char_id);
} else if (p_rpt->uuid == GATT_UUID_HID_REPORT &&
p_rpt->client_cfg_value == BTA_GATT_CLT_CONFIG_NOTIFICATION) {
APPL_TRACE_DEBUG("<--- Register Report ID: %d", p_rpt->rpt_id);
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if,
p_dev_cb->addr,
&char_id);
}
}
/*
else unknow protocol mode */
}
}
}
/*******************************************************************************
**
** 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
bta_hh_le_hid_report_dbg(p_cb);
#endif
bta_hh_le_register_input_notif(p_cb, 0, 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_char_clt_cfg
**
** Description Utility function to find and write client configuration of
** a characteristic
**
*******************************************************************************/
BOOLEAN bta_hh_le_write_char_clt_cfg(tBTA_HH_DEV_CB *p_cb,
UINT8 srvc_inst_id, UINT16 srvc_uuid16,
UINT8 char_inst_id, UINT16 char_uuid16,
UINT16 clt_cfg_value)
{
tBTA_GATTC_CHAR_ID char_id;
tBT_UUID descr_cond;
tBTA_GATTC_CHAR_DESCR_ID descr_id;
tBTA_GATT_UNFMT value;
UINT8 buf[2], *pp = buf;
bta_hh_le_fill_16bits_srvc_id(TRUE, srvc_inst_id, srvc_uuid16, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(char_inst_id, char_uuid16, &char_id.char_id);
descr_cond.len = LEN_UUID_16;
descr_cond.uu.uuid16 = GATT_UUID_CHAR_CLIENT_CONFIG;
value.len = 2;
value.p_value = buf;
UINT16_TO_STREAM(pp, clt_cfg_value);
if (BTA_GATTC_GetFirstCharDescr(p_cb->conn_id,
&char_id,
&descr_cond,
&descr_id) == BTA_GATT_OK) {
BTA_GATTC_WriteCharDescr(p_cb->conn_id,
&descr_id,
BTA_GATTC_TYPE_WRITE,
&value,
BTA_GATT_AUTH_REQ_NONE);
return TRUE;
}
return FALSE;
}
/*******************************************************************************
**
** 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.
**
*******************************************************************************/
BOOLEAN bta_hh_le_write_rpt_clt_cfg(tBTA_HH_DEV_CB *p_cb, UINT8 srvc_inst_id)
{
UINT8 i;
tBTA_HH_LE_RPT *p_rpt = &p_cb->hid_srvc[srvc_inst_id].report[p_cb->clt_cfg_idx];
UINT16 srvc_uuid;
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 (p_rpt->uuid == GATT_UUID_BATTERY_LEVEL) {
srvc_uuid = UUID_SERVCLASS_BATTERY;
} else {
srvc_uuid = UUID_SERVCLASS_LE_HID;
}
if (bta_hh_le_write_char_clt_cfg(p_cb,
BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt->inst_id),
srvc_uuid,
BTA_HH_LE_RPT_GET_RPT_INST_ID(p_rpt->inst_id),
p_rpt->uuid,
BTA_GATT_CLT_CONFIG_NOTIFICATION)) {
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;
/* discover scan parameter profile is act as report host */
bta_hh_le_search_scps(p_cb);
}
return FALSE;
}
/*******************************************************************************
**
** Function bta_hh_le_set_protocol_mode
**
** Description Set remote device protocol mode.
**
*******************************************************************************/
BOOLEAN bta_hh_le_set_protocol_mode(tBTA_HH_DEV_CB *p_cb, tBTA_HH_PROTO_MODE mode)
{
tBTA_GATTC_CHAR_ID char_id;
tBTA_HH_CBDATA cback_data ;
BOOLEAN exec = FALSE;
APPL_TRACE_DEBUG("bta_hh_le_set_protocol_mode attempt mode: %s",
(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[BTA_HH_LE_SRVC_DEF].option_char & BTA_HH_LE_PROTO_MODE_BIT) == 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, 0, 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) {
bta_hh_le_fill_16bits_srvc_id(TRUE, 0, UUID_SERVCLASS_LE_HID, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(0, GATT_UUID_HID_PROTO_MODE, &char_id.char_id);
p_cb->mode = mode;
mode = (mode == BTA_HH_PROTO_BOOT_MODE) ? BTA_HH_LE_PROTO_BOOT_MODE : BTA_HH_LE_PROTO_REPORT_MODE;
BTA_GATTC_WriteCharValue(p_cb->conn_id,
&char_id,
BTA_GATTC_TYPE_WRITE_NO_RSP,
1,
&mode,
BTA_GATT_AUTH_REQ_NONE);
exec = TRUE;
}
return exec;
}
/*******************************************************************************
**
** 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_GATTC_CHAR_ID char_id;
tBTA_HH_HSDATA hs_data;
UINT8 i;
p_cb->w4_evt = BTA_HH_GET_PROTO_EVT;
for (i = 0; i < BTA_HH_LE_HID_SRVC_MAX; i ++) {
if (p_cb->hid_srvc[i].in_use &&
p_cb->hid_srvc[i].option_char & BTA_HH_LE_PROTO_MODE_BIT) {
bta_hh_le_fill_16bits_srvc_id(TRUE, 0, UUID_SERVCLASS_LE_HID, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(0, GATT_UUID_HID_PROTO_MODE, &char_id.char_id);
BTA_GATTC_ReadCharacteristic(p_cb->conn_id,
&char_id,
BTA_GATT_AUTH_REQ_NONE);
break;
}
}
/* no service support protocol_mode, by default report mode */
if (i == BTA_HH_LE_HID_SRVC_MAX) {
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_expl_rpt
**
** Description explore all report characteristic
**
*******************************************************************************/
void bta_hh_le_expl_rpt(tBTA_HH_DEV_CB *p_dev_cb,
tBTA_GATTC_CHAR_ID *p_char_id,
tBT_UUID *p_char_cond,
tBTA_GATT_CHAR_PROP prop)
{
tBTA_GATTC_CHAR_ID char_result;
do {
if (bta_hh_le_find_alloc_report_entry(p_dev_cb,
p_dev_cb->cur_srvc_index,
GATT_UUID_HID_REPORT,
p_char_id->char_id.inst_id,
prop) == NULL) {
APPL_TRACE_ERROR("Add report entry failed !!!");
break;
}
APPL_TRACE_DEBUG("Find more REPORT");
if (BTA_GATTC_GetNextChar(p_dev_cb->conn_id,
p_char_id,
p_char_cond,
&char_result,
&prop) != BTA_GATT_OK) {
break;
}
p_char_id = &char_result;
} while (1);
LOG_INFO("%s all BLE reports searched", __func__);
bta_hh_le_read_rpt_ref_descr(p_dev_cb,
&p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].report[0]);
return ;
}
/*******************************************************************************
**
** Function bta_hh_le_expl_boot_rpt
**
** Description explore boot report
**
*******************************************************************************/
void bta_hh_le_expl_boot_rpt(tBTA_HH_DEV_CB *p_dev_cb, UINT16 char_uuid,
tBTA_GATT_CHAR_PROP prop)
{
if (bta_hh_le_find_alloc_report_entry(p_dev_cb,
p_dev_cb->cur_srvc_index,
char_uuid,
0,
prop) == NULL)
{
APPL_TRACE_ERROR("Add report entry failed !!!");
}
return;
}
/*******************************************************************************
**
** Function bta_hh_le_dis_cback
**
** Description DIS read complete callback
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_dis_cback(BD_ADDR 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(BD_ADDR bd_addr, tBTA_GATT_TRANSPORT transport,
void *p_ref_data, tBTM_STATUS result)
{
UINT8 idx = bta_hh_find_cb(bd_addr);
tBTA_HH_DEV_CB *p_dev_cb;
UNUSED(p_ref_data);
UNUSED (transport);
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, tBTA_HH_DATA *p_buf)
{
tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache;
UINT8 num_rpt = 0;
UNUSED(p_buf);
if (p_cb->status == BTA_HH_OK) {
APPL_TRACE_DEBUG("bta_hh_security_cmpl OK");
if (!p_cb->hid_srvc[BTA_HH_LE_SRVC_DEF].in_use) {
APPL_TRACE_DEBUG("bta_hh_security_cmpl no reports loaded, try to load");
/* start loading the cache if not in stack */
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[BTA_HH_LE_SRVC_DEF].in_use) {
/* configure protocol mode */
if (bta_hh_le_set_protocol_mode(p_cb, p_cb->mode) == FALSE) {
APPL_TRACE_ERROR("bta_hh_security_cmpl");
bta_hh_le_open_cmpl(p_cb);
}
}
/* start primary service discovery for HID service */
else {
bta_hh_le_pri_service_discovery(p_cb);
}
} else {
APPL_TRACE_ERROR("%s() - encryption failed; status=0x%04x, reason=0x%04x",
__FUNCTION__, 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)
{
UINT8 i;
tBTA_HH_LE_HID_SRVC *p_hid_srvc = &p_cb->hid_srvc[0];
p_cb->app_id = 0;
p_cb->total_srvc = 0;
p_cb->dscp_info.descriptor.dsc_list = NULL;
for (i = 0; i < BTA_HH_LE_HID_SRVC_MAX; i ++, p_hid_srvc ++) {
utl_freebuf((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, tBTA_HH_DATA *p_buf)
{
UINT8 sec_flag = 0;
tBTM_SEC_DEV_REC *p_dev_rec;
UNUSED(p_buf);
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, &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, &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 *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;
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;
#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);
tBTA_HH_LE_CLOSE *p_buf = NULL;
UINT16 sm_event = BTA_HH_GATT_CLOSE_EVT;
if (p_dev_cb != NULL &&
(p_buf = (tBTA_HH_LE_CLOSE *)osi_malloc(sizeof(tBTA_HH_LE_CLOSE))) != NULL) {
p_buf->hdr.event = sm_event;
p_buf->hdr.layer_specific = (UINT16)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_search_result
**
** Description This function process the GATT service search result.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_search_result(tBTA_GATTC_SRVC_RES *p_srvc_result)
{
tBTA_HH_DEV_CB *p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_srvc_result->conn_id);
if (p_dev_cb != NULL) {
switch (p_srvc_result->service_uuid.id.uuid.uu.uuid16) {
case UUID_SERVCLASS_LE_HID:
if (p_srvc_result->service_uuid.is_primary) {
/* found HID primamry service */
/* TODO: proceed to find battery and device info */
if (bta_hh_le_add_hid_srvc_entry(p_dev_cb, p_dev_cb->total_srvc)) {
p_dev_cb->total_srvc ++;
}
APPL_TRACE_DEBUG("num of hid service: %d", p_dev_cb->total_srvc);
}
break;
case UUID_SERVCLASS_SCAN_PARAM : /* scan parameter service */
bta_hh_le_search_scps_chars(p_dev_cb);
break;
}
}
}
/*******************************************************************************
**
** 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, BTA_HH_LE_SRVC_DEF);
} else { /* error, close the GATT connection */
/* close GATT connection if it's on */
bta_hh_le_api_disc_act(p_cb);
}
}
/*******************************************************************************
**
** Function bta_hh_le_srvc_expl_srvc
**
** Description This function discover the next avaible HID service.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_srvc_expl_srvc(tBTA_HH_DEV_CB *p_dev_cb)
{
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_hh_le_srvc_expl_srvc cur_srvc_index = %d in_use = %d",
p_dev_cb->cur_srvc_index,
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].in_use);
#endif
if (p_dev_cb->cur_srvc_index < BTA_HH_LE_HID_SRVC_MAX &&
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].in_use) {
if (!p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].expl_incl_srvc)
/* explore included service first */
{
bta_hh_le_search_hid_included(p_dev_cb);
} else {
/* explore characterisc */
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].cur_expl_char_idx = 0;
bta_hh_le_search_hid_chars(p_dev_cb);
}
} else { /* all service discvery finished */
bta_hh_le_gatt_disc_cmpl(p_dev_cb, p_dev_cb->status);
}
}
/*******************************************************************************
**
** 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->total_srvc == 0) {
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);
}
/* GATT service discovery sucessfully finished */
else {
if (p_dev_cb->disc_active & BTA_HH_LE_DISC_SCPS) {
p_dev_cb->disc_active &= ~BTA_HH_LE_DISC_SCPS;
bta_hh_le_open_cmpl(p_dev_cb);
} else { /* discover HID service */
p_dev_cb->cur_srvc_index = 0;
bta_hh_le_srvc_expl_srvc(p_dev_cb);
}
}
}
/*******************************************************************************
**
** Function bta_hh_le_search_hid_included
**
** Description This function search the included service within the HID service.
**
** Parameters:
**
*******************************************************************************/
static void bta_hh_le_search_hid_included(tBTA_HH_DEV_CB *p_dev_cb)
{
tBT_UUID srvc_cond, char_cond;
tBTA_GATTC_INCL_SVC_ID inc_srvc_result;
tBTA_GATT_SRVC_ID srvc_id;
tBTA_GATTC_CHAR_ID char_result;
tBTA_GATT_CHAR_PROP prop = 0;
bta_hh_le_fill_16bits_srvc_id(TRUE, p_dev_cb->cur_srvc_index, UUID_SERVCLASS_LE_HID, &srvc_id);
srvc_cond.len = LEN_UUID_16;
srvc_cond.uu.uuid16 = UUID_SERVCLASS_BATTERY;
if (BTA_GATTC_GetFirstIncludedService(p_dev_cb->conn_id,
&srvc_id,
&srvc_cond,
&inc_srvc_result) == BTA_GATT_OK) {
/* read include service UUID */
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].incl_srvc_inst = inc_srvc_result.incl_svc_id.id.inst_id;
char_cond.len = LEN_UUID_16;
char_cond.uu.uuid16 = GATT_UUID_BATTERY_LEVEL;
/* find the battery characteristic */
if (BTA_GATTC_GetFirstChar( p_dev_cb->conn_id,
&inc_srvc_result.incl_svc_id,
&char_cond,
&char_result,
&prop) == BTA_GATT_OK) {
if (bta_hh_le_find_alloc_report_entry(p_dev_cb,
char_result.srvc_id.id.inst_id,
GATT_UUID_BATTERY_LEVEL,
char_result.char_id.inst_id,
prop) == NULL) {
APPL_TRACE_ERROR("Add battery report entry failed !!!")
}
/* read the battery characteristic */
BTA_GATTC_ReadCharacteristic(p_dev_cb->conn_id,
&char_result,
BTA_GATT_AUTH_REQ_NONE);
return;
} else {
APPL_TRACE_ERROR("Remote device does not have battery level");
}
}
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].expl_incl_srvc = TRUE;
bta_hh_le_srvc_expl_srvc(p_dev_cb);
}
/*******************************************************************************
**
** Function bta_hh_read_battery_level_cmpl
**
** Description This function process the battery level read
**
** Parameters:
**
*******************************************************************************/
void bta_hh_read_battery_level_cmpl(UINT8 status, tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
{
UNUSED(status);
UNUSED(p_data);
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].expl_incl_srvc = TRUE;
bta_hh_le_srvc_expl_srvc(p_dev_cb);
}
/*******************************************************************************
**
** 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)
{
tBT_UUID char_cond;
tBTA_GATTC_CHAR_ID char_result;
tBTA_GATT_CHAR_PROP prop;
BOOLEAN next = TRUE;
UINT16 char_uuid = 0;
tBTA_GATT_SRVC_ID srvc_id;
if (p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].cur_expl_char_idx == BTA_HH_LE_DISC_CHAR_NUM ||
(p_dev_cb->status != BTA_HH_OK && p_dev_cb->status != BTA_HH_ERR_PROTO)) {
p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].cur_expl_char_idx = 0;
/* explore next service */
p_dev_cb->cur_srvc_index ++;
bta_hh_le_srvc_expl_srvc(p_dev_cb);
return;
}
p_dev_cb->hid_srvc[ p_dev_cb->cur_srvc_index].cur_expl_char_idx ++;
char_uuid = bta_hh_le_disc_char_uuid[p_dev_cb->hid_srvc[p_dev_cb->cur_srvc_index].cur_expl_char_idx - 1];
char_cond.len = LEN_UUID_16;
char_cond.uu.uuid16 = char_uuid;
bta_hh_le_fill_16bits_srvc_id(TRUE, p_dev_cb->cur_srvc_index, UUID_SERVCLASS_LE_HID, &srvc_id);
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_hh_le_search_hid_chars: looking for %s(0x%04x)",
bta_hh_uuid_to_str(char_uuid), char_uuid);
#endif
if (BTA_GATTC_GetFirstChar( p_dev_cb->conn_id,
&srvc_id,
&char_cond,
&char_result,
&prop) == BTA_GATT_OK) {
switch (char_uuid) {
case GATT_UUID_HID_CONTROL_POINT:
p_dev_cb->hid_srvc[char_result.srvc_id.id.inst_id].option_char |= BTA_HH_LE_CP_BIT;
next = TRUE;
break;
case GATT_UUID_HID_INFORMATION:
case GATT_UUID_HID_REPORT_MAP:
/* read the char value */
BTA_GATTC_ReadCharacteristic(p_dev_cb->conn_id,
&char_result,
BTA_GATT_AUTH_REQ_NONE);
next = FALSE;
break;
case GATT_UUID_HID_PROTO_MODE:
p_dev_cb->hid_srvc[char_result.srvc_id.id.inst_id].option_char |= BTA_HH_LE_PROTO_MODE_BIT;
next = !bta_hh_le_set_protocol_mode(p_dev_cb, p_dev_cb->mode);
break;
case GATT_UUID_HID_REPORT:
bta_hh_le_expl_rpt(p_dev_cb, &char_result, &char_cond, prop);
next = FALSE;
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:
bta_hh_le_expl_boot_rpt(p_dev_cb, char_uuid, prop);
break;
}
} else {
if (char_uuid == GATT_UUID_HID_PROTO_MODE) {
next = !bta_hh_le_set_protocol_mode(p_dev_cb, p_dev_cb->mode);
}
}
if (next == TRUE) {
bta_hh_le_search_hid_chars(p_dev_cb);
}
}
/*******************************************************************************
**
** Function bta_hh_le_save_rpt_map
**
** Description save the report map into the control block.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_save_rpt_map(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
{
UINT8 *pp ;
tBTA_HH_LE_HID_SRVC *p_srvc = &p_dev_cb->hid_srvc[p_data->srvc_id.id.inst_id];
pp = p_data->p_value->unformat.p_value;
/* save report descriptor */
if (p_srvc->rpt_map != NULL) {
osi_free((void *)p_srvc->rpt_map);
}
if (p_data->p_value->unformat.len > 0) {
p_srvc->rpt_map = (UINT8 *)osi_malloc(p_data->p_value->unformat.len);
}
if (p_srvc->rpt_map != NULL) {
STREAM_TO_ARRAY(p_srvc->rpt_map, pp, p_data->p_value->unformat.len);
p_srvc->descriptor.dl_len = p_data->p_value->unformat.len;
p_srvc->descriptor.dsc_list = p_dev_cb->hid_srvc[p_data->srvc_id.id.inst_id].rpt_map;
}
if (bta_hh_le_read_char_dscrpt(p_dev_cb,
UUID_SERVCLASS_LE_HID,
p_data->srvc_id.id.inst_id,
GATT_UUID_HID_REPORT_MAP,
p_data->char_id.inst_id,
GATT_UUID_EXT_RPT_REF_DESCR) != BTA_HH_OK) {
bta_hh_le_search_hid_chars(p_dev_cb);
}
}
/*******************************************************************************
**
** Function bta_hh_le_proc_get_rpt_cmpl
**
** Description Process the Read report complete, send GET_REPORT_EVT to application
** with the report data.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_proc_get_rpt_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
{
BT_HDR *p_buf = NULL;
tBTA_HH_LE_RPT *p_rpt;
tBTA_HH_HSDATA hs_data;
UINT8 *pp ;
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;
}
memset(&hs_data, 0, sizeof(hs_data));
hs_data.status = BTA_HH_ERR;
hs_data.handle = p_dev_cb->hid_handle;
if (p_data->status == BTA_GATT_OK) {
p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
p_data->srvc_id.id.inst_id,//BTA_HH_LE_SRVC_DEF,
p_data->char_id.uuid.uu.uuid16,
p_data->char_id.inst_id);
if (p_rpt != NULL &&
p_data->p_value != NULL &&
(p_buf = (BT_HDR *)osi_malloc((UINT16)(sizeof(BT_HDR) + p_data->p_value->unformat.len + 1))) != NULL) {
/* pack data send to app */
hs_data.status = BTA_HH_OK;
p_buf->len = p_data->p_value->unformat.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 *)(p_buf + 1);
UINT8_TO_STREAM(pp, p_rpt->rpt_id);
memcpy(pp, p_data->p_value->unformat.p_value, p_data->p_value->unformat.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);
utl_freebuf((void **)&p_buf);
}
/*******************************************************************************
**
** Function bta_hh_le_proc_read_proto_mode
**
** Description Process the Read protocol mode, send GET_PROTO_EVT to application
** with the protocol mode.
**
*******************************************************************************/
void bta_hh_le_proc_read_proto_mode(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_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 (p_data->status == BTA_GATT_OK && p_data->p_value) {
hs_data.status = BTA_HH_OK;
/* match up BTE/BTA report/boot mode def*/
hs_data.rsp_data.proto_mode = *(p_data->p_value->unformat.p_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
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_w4_le_read_char_cmpl
**
** Description process the GATT read complete in W4_CONN state.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_w4_le_read_char_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_GATTC_READ *p_data = (tBTA_GATTC_READ *)p_buf;
UINT8 *pp ;
if (p_data->char_id.uuid.uu.uuid16 == GATT_UUID_BATTERY_LEVEL) {
bta_hh_read_battery_level_cmpl(p_data->status, p_dev_cb, p_data);
} else {
if (p_data->status == BTA_GATT_OK && p_data->p_value) {
pp = p_data->p_value->unformat.p_value;
switch (p_data->char_id.uuid.uu.uuid16) {
/* save device information */
case GATT_UUID_HID_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);
break;
case GATT_UUID_HID_REPORT_MAP:
bta_hh_le_save_rpt_map(p_dev_cb, p_data);
return;
default:
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_ERROR("Unexpected read %s(0x%04x)",
bta_hh_uuid_to_str(p_data->char_id.uuid.uu.uuid16),
p_data->char_id.uuid.uu.uuid16);
#endif
break;
}
} else {
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_ERROR("read uuid %s[0x%04x] error: %d",
bta_hh_uuid_to_str(p_data->char_id.uuid.uu.uuid16),
p_data->char_id.uuid.uu.uuid16,
p_data->status);
#else
APPL_TRACE_ERROR("read uuid [0x%04x] error: %d", p_data->char_id.uuid.uu.uuid16, p_data->status);
#endif
}
bta_hh_le_search_hid_chars(p_dev_cb);
}
}
/*******************************************************************************
**
** Function bta_hh_le_read_char_cmpl
**
** Description a characteristic value is received.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_read_char_cmpl (tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_GATTC_READ *p_data = (tBTA_GATTC_READ *)p_buf;
switch (p_data->char_id.uuid.uu.uuid16) {
/* GET_REPORT */
case GATT_UUID_HID_REPORT:
case GATT_UUID_HID_BT_KB_INPUT:
case GATT_UUID_HID_BT_KB_OUTPUT:
case GATT_UUID_HID_BT_MOUSE_INPUT:
case GATT_UUID_BATTERY_LEVEL: /* read battery level */
bta_hh_le_proc_get_rpt_cmpl(p_dev_cb, p_data);
break;
case GATT_UUID_HID_PROTO_MODE:
bta_hh_le_proc_read_proto_mode(p_dev_cb, p_data);
break;
default:
APPL_TRACE_ERROR("Unexpected Read UUID: 0x%04x", p_data->char_id.uuid.uu.uuid16);
break;
}
}
/*******************************************************************************
**
** Function bta_hh_le_read_descr_cmpl
**
** Description read characteristic descriptor is completed in CONN st.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_read_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_HH_LE_RPT *p_rpt;
tBTA_GATTC_READ *p_data = (tBTA_GATTC_READ *)p_buf;
UINT8 *pp;
/* if a report client configuration */
if (p_data->descr_type.uuid.uu.uuid16 == GATT_UUID_CHAR_CLIENT_CONFIG) {
if ((p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
BTA_HH_LE_SRVC_DEF,
p_data->char_id.uuid.uu.uuid16,
p_data->char_id.inst_id)) != NULL) {
pp = p_data->p_value->unformat.p_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_read_battery_level_descr_cmpl
**
** Description Process report reference descriptor for battery level is completed
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_read_battery_level_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATTC_READ *p_data)
{
tBTA_HH_LE_RPT *p_rpt;
UINT16 descr_uuid = p_data->descr_type.uuid.uu.uuid16;
/* read report reference descriptor for battery level is completed */
if (descr_uuid == GATT_UUID_RPT_REF_DESCR) {
if ((p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
p_data->srvc_id.id.inst_id,
GATT_UUID_BATTERY_LEVEL,
p_data->char_id.inst_id)) == NULL) {
bta_hh_le_search_hid_chars(p_dev_cb);
} else {
bta_hh_le_save_rpt_ref(p_dev_cb, p_rpt, p_data);
}
}
}
/*******************************************************************************
**
** Function bta_hh_w4_le_read_descr_cmpl
**
** Description read characteristic descriptor is completed in W4_CONN st.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_w4_le_read_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_HH_LE_RPT *p_rpt;
tBTA_GATTC_READ *p_data = (tBTA_GATTC_READ *)p_buf;
UINT16 char_uuid16;
if (p_data == NULL) {
return;
}
char_uuid16 = p_data->char_id.uuid.uu.uuid16;
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_DEBUG("bta_hh_w4_le_read_descr_cmpl uuid: %s(0x%04x)",
bta_hh_uuid_to_str(p_data->descr_type.uuid.uu.uuid16),
p_data->descr_type.uuid.uu.uuid16);
#endif
switch (char_uuid16) {
case GATT_UUID_HID_REPORT:
if ((p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
p_data->srvc_id.id.inst_id,
GATT_UUID_HID_REPORT,
p_data->char_id.inst_id)) == NULL) {
bta_hh_le_search_hid_chars(p_dev_cb);
} else {
bta_hh_le_save_rpt_ref(p_dev_cb, p_rpt, p_data);
}
break;
case GATT_UUID_HID_REPORT_MAP:
bta_hh_le_save_ext_rpt_ref(p_dev_cb, p_data);
break;
case GATT_UUID_BATTERY_LEVEL:
bta_hh_le_read_battery_level_descr_cmpl(p_dev_cb, p_data);
break;
default:
APPL_TRACE_ERROR("unknown descriptor read complete for uuid: 0x%04x", char_uuid16);
break;
}
}
/*******************************************************************************
**
** Function bta_hh_w4_le_write_cmpl
**
** Description Write charactersitic complete event at W4_CONN st.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_w4_le_write_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_GATTC_WRITE *p_data = (tBTA_GATTC_WRITE *)p_buf;
if (p_data == NULL) {
return;
}
if (p_data->char_id.uuid.uu.uuid16 == GATT_UUID_HID_PROTO_MODE) {
p_dev_cb->status = (p_data->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_search_hid_chars(p_dev_cb);
} else {
bta_hh_le_open_cmpl(p_dev_cb);
}
}
}
/*******************************************************************************
**
** Function bta_hh_le_write_cmpl
**
** Description Write charactersitic complete event at CONN st.
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_write_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_GATTC_WRITE *p_data = (tBTA_GATTC_WRITE *)p_buf;
tBTA_HH_CBDATA cback_data ;
UINT16 cb_evt = p_dev_cb->w4_evt;
if (p_data == NULL || cb_evt == 0) {
return;
}
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG("bta_hh_le_write_cmpl w4_evt: %d", p_dev_cb->w4_evt);
#endif
switch (p_data->char_id.uuid.uu.uuid16) {
/* Set protocol finished */
case GATT_UUID_HID_PROTO_MODE:
cback_data.handle = p_dev_cb->hid_handle;
if (p_data->status == BTA_GATT_OK) {
bta_hh_le_register_input_notif(p_dev_cb, p_data->srvc_id.id.inst_id, p_dev_cb->mode, FALSE);
cback_data.status = BTA_HH_OK;
} else {
cback_data.status = BTA_HH_ERR;
}
p_dev_cb->w4_evt = 0;
(* bta_hh_cb.p_cback)(cb_evt, (tBTA_HH *)&cback_data);
break;
/* Set Report finished */
case GATT_UUID_HID_REPORT:
case GATT_UUID_HID_BT_KB_INPUT:
case GATT_UUID_HID_BT_MOUSE_INPUT:
case GATT_UUID_HID_BT_KB_OUTPUT:
cback_data.handle = p_dev_cb->hid_handle;
cback_data.status = (p_data->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);
break;
case GATT_UUID_SCAN_INT_WINDOW:
bta_hh_le_register_scpp_notif(p_dev_cb, p_data->status);
break;
default:
break;
}
}
/*******************************************************************************
**
** Function bta_hh_le_write_char_descr_cmpl
**
** Description Write charactersitic descriptor complete event
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_write_char_descr_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_GATTC_WRITE *p_data = (tBTA_GATTC_WRITE *)p_buf;
UINT8 srvc_inst_id, hid_inst_id;
/* only write client configuration possible */
if (p_data->descr_type.uuid.uu.uuid16 == GATT_UUID_CHAR_CLIENT_CONFIG) {
srvc_inst_id = p_data->srvc_id.id.inst_id;
hid_inst_id = srvc_inst_id;
switch (p_data->char_id.uuid.uu.uuid16) {
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);
/* fall through */
case GATT_UUID_HID_BT_KB_INPUT:
case GATT_UUID_HID_BT_MOUSE_INPUT:
case GATT_UUID_HID_REPORT:
if (p_data->status == BTA_GATT_OK)
p_dev_cb->hid_srvc[hid_inst_id].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, hid_inst_id);
break;
case GATT_UUID_SCAN_REFRESH:
bta_hh_le_register_scpp_notif_cmpl(p_dev_cb, p_data->status);
break;
default:
APPL_TRACE_ERROR("Unknown char ID clt cfg: 0x%04x", p_data->char_id.uuid.uu.uuid16);
}
} else {
#if BTA_HH_DEBUG == TRUE
APPL_TRACE_ERROR("Unexpected write to %s(0x%04x)",
bta_hh_uuid_to_str(p_data->descr_type.uuid.uu.uuid16),
p_data->descr_type.uuid.uu.uuid16);
#else
APPL_TRACE_ERROR("Unexpected write to (0x%04x)",
p_data->descr_type.uuid.uu.uuid16);
#endif
}
}
/*******************************************************************************
**
** 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 app_id;
UINT8 *p_buf;
tBTA_HH_LE_RPT *p_rpt;
if (p_dev_cb == NULL) {
APPL_TRACE_ERROR("notification received from Unknown device");
return;
}
app_id = p_dev_cb->app_id;
p_rpt = bta_hh_le_find_report_entry(p_dev_cb,
BTA_HH_LE_SRVC_DEF,
p_data->char_id.char_id.uuid.uu.uuid16,
p_data->char_id.char_id.inst_id);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("notification received for Unknown Report");
return;
}
if (p_data->char_id.char_id.uuid.uu.uuid16 == GATT_UUID_HID_BT_MOUSE_INPUT) {
app_id = BTA_HH_APP_ID_MI;
} else if (p_data->char_id.char_id.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) {
if ((p_buf = (UINT8 *)osi_malloc((UINT16)(p_data->len + 1))) == NULL) {
APPL_TRACE_ERROR("No resources to send report data");
return;
}
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)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;
memcpy(conn_dat.bda, p_cb->addr, BD_ADDR_LEN);
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};
/* 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) {
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 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, UINT8 srvc_inst, tBTA_HH_RPT_TYPE r_type, UINT8 rpt_id)
{
tBTA_HH_LE_RPT *p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc[srvc_inst].report, p_cb->mode, r_type, rpt_id);
tBTA_GATTC_CHAR_ID char_id;
UINT16 srvc_uuid = UUID_SERVCLASS_LE_HID;
if (p_rpt == NULL) {
APPL_TRACE_ERROR("bta_hh_le_get_rpt: no matching report");
return;
}
if (p_rpt->uuid == GATT_UUID_BATTERY_LEVEL) {
srvc_uuid = UUID_SERVCLASS_BATTERY;
}
p_cb->w4_evt = BTA_HH_GET_RPT_EVT;
bta_hh_le_fill_16bits_srvc_id(TRUE, srvc_inst, srvc_uuid, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(p_rpt->inst_id, p_rpt->uuid, &char_id.char_id);
BTA_GATTC_ReadCharacteristic(p_cb->conn_id,
&char_id,
BTA_GATT_AUTH_REQ_NONE);
}
/*******************************************************************************
**
** 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, UINT8 srvc_inst,
tBTA_GATTC_WRITE_TYPE write_type,
tBTA_HH_RPT_TYPE r_type,
BT_HDR *p_buf, UINT16 w4_evt )
{
tBTA_HH_LE_RPT *p_rpt;
tBTA_GATTC_CHAR_ID char_id;
UINT8 *p_value, rpt_id;
if (p_buf == NULL || p_buf->len == 0) {
APPL_TRACE_ERROR("bta_hh_le_write_rpt: Illegal data");
return;
}
/* strip report ID from the data */
p_value = (UINT8 *)(p_buf + 1) + p_buf->offset;
STREAM_TO_UINT8(rpt_id, p_value);
p_buf->len -= 1;
p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc[srvc_inst].report, p_cb->mode, r_type, rpt_id);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("bta_hh_le_write_rpt: no matching report");
osi_free(p_buf);
return;
}
APPL_TRACE_ERROR("bta_hh_le_write_rpt: ReportID: 0x%02x Data Len: %d", rpt_id, p_buf->len);
p_cb->w4_evt = w4_evt;
bta_hh_le_fill_16bits_srvc_id(TRUE, srvc_inst, UUID_SERVCLASS_LE_HID, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(p_rpt->inst_id, p_rpt->uuid, &char_id.char_id);
BTA_GATTC_WriteCharValue(p_cb->conn_id,
&char_id,
write_type, /* default to use write request */
p_buf->len,
p_value,
BTA_GATT_AUTH_REQ_NONE);
}
/*******************************************************************************
**
** 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)
{
UINT8 i;
tBTA_GATTC_CHAR_ID char_id;
ctrl_type -= BTA_HH_CTRL_SUSPEND;
for (i = 0; i < BTA_HH_LE_HID_SRVC_MAX; i ++) {
bta_hh_le_fill_16bits_srvc_id(TRUE, i, UUID_SERVCLASS_LE_HID, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(0, GATT_UUID_HID_CONTROL_POINT, &char_id.char_id);
BTA_GATTC_WriteCharValue(p_cb->conn_id,
&char_id,
BTA_GATTC_TYPE_WRITE_NO_RSP, /* default to use write request */
1,
&ctrl_type,
BTA_GATT_AUTH_REQ_NONE);
}
}
/*******************************************************************************
**
** 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,
BTA_HH_LE_SRVC_DEF,
p_data->api_sndcmd.param,
p_data->api_sndcmd.rpt_id);
break;
case HID_TRANS_SET_REPORT:
bta_hh_le_write_rpt(p_cb,
BTA_HH_LE_SRVC_DEF,
BTA_GATTC_TYPE_WRITE,
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,
BTA_HH_LE_SRVC_DEF,
BTA_GATTC_TYPE_WRITE_NO_RSP,
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)
{
UINT8 i;
for (i = 0 ; i < BTA_HH_LE_HID_SRVC_MAX; i ++) {
if (p_cb->hid_srvc[i].in_use) {
p_cb->dscp_info.descriptor.dl_len = p_cb->hid_srvc[i].descriptor.dl_len;
p_cb->dscp_info.descriptor.dsc_list = p_cb->hid_srvc[i].descriptor.dsc_list;
(*bta_hh_cb.p_cback)(BTA_HH_GET_DSCP_EVT, (tBTA_HH *)&p_cb->dscp_info);
} else {
break;
}
}
}
/*******************************************************************************
**
** Function bta_hh_le_add_dev_bg_conn
**
** Description Remove a LE HID device from background connection procedure.
**
** Returns void
**
*******************************************************************************/
static void bta_hh_le_add_dev_bg_conn(tBTA_HH_DEV_CB *p_cb, BOOLEAN check_bond)
{
UINT8 sec_flag = 0;
BOOLEAN 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);
p_cb->in_bg_conn = TRUE;
BTA_DmBleSetBgConnType(BTA_DM_BLE_CONN_AUTO, NULL);
}
return;
}
/*******************************************************************************
**
** Function bta_hh_le_add_device
**
** Description Add a LE HID device as a known device, and also add the address
** into background connection WL for incoming connection.
**
** Returns void
**
*******************************************************************************/
UINT8 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 background 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);
}
}
/*******************************************************************************
**
** Function bta_hh_le_update_scpp
**
** Description action function to update the scan parameters on remote HID
** device
**
** Parameters:
**
*******************************************************************************/
void bta_hh_le_update_scpp(tBTA_HH_DEV_CB *p_dev_cb, tBTA_HH_DATA *p_buf)
{
tBTA_GATTC_CHAR_ID char_id;
UINT8 value[4], *p = value;
tBTA_HH_CBDATA cback_data ;
if (!p_dev_cb->is_le_device ||
p_dev_cb->mode != BTA_HH_PROTO_RPT_MODE ||
p_dev_cb->scps_supported == FALSE) {
APPL_TRACE_ERROR("Can not set ScPP scan paramter as boot host, or remote does not support ScPP ");
cback_data.handle = p_dev_cb->hid_handle;
cback_data.status = BTA_HH_ERR;
(* bta_hh_cb.p_cback)(BTA_HH_UPDATE_SCPP_EVT, (tBTA_HH *)&cback_data);
return;
}
p_dev_cb->w4_evt = BTA_HH_UPDATE_SCPP_EVT;
UINT16_TO_STREAM(p, p_buf->le_scpp_update.scan_int);
UINT16_TO_STREAM(p, p_buf->le_scpp_update.scan_win);
bta_hh_le_fill_16bits_srvc_id(TRUE, BTA_HH_SCPP_INST_DEF, UUID_SERVCLASS_SCAN_PARAM, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(BTA_HH_SCPP_INST_DEF, GATT_UUID_SCAN_INT_WINDOW, &char_id.char_id);
BTA_GATTC_WriteCharValue(p_dev_cb->conn_id,
&char_id,
BTA_GATTC_TYPE_WRITE_NO_RSP,
2,
value,
BTA_GATT_AUTH_REQ_NONE);
}
/*******************************************************************************
**
** 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;
UINT16 evt;
#if BTA_HH_DEBUG
APPL_TRACE_DEBUG("bta_hh_gattc_callback event = %d", event);
#endif
if (p_data == NULL) {
return;
}
switch (event) {
case BTA_GATTC_REG_EVT: /* 0 */
bta_hh_le_register_cmpl(&p_data->reg_oper);
break;
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_READ_CHAR_EVT: /* 3 */
case BTA_GATTC_READ_DESCR_EVT: /* 8 */
p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->read.conn_id);
if (event == BTA_GATTC_READ_CHAR_EVT) {
evt = BTA_HH_GATT_READ_CHAR_CMPL_EVT;
} else {
evt = BTA_HH_GATT_READ_DESCR_CMPL_EVT;
}
bta_hh_sm_execute(p_dev_cb, evt, (tBTA_HH_DATA *)&p_data->read);
break;
case BTA_GATTC_WRITE_DESCR_EVT: /* 9 */
case BTA_GATTC_WRITE_CHAR_EVT: /* 4 */
p_dev_cb = bta_hh_le_find_dev_cb_by_conn_id(p_data->write.conn_id);
if (event == BTA_GATTC_WRITE_CHAR_EVT) {
evt = BTA_HH_GATT_WRITE_CHAR_CMPL_EVT;
} else {
evt = BTA_HH_GATT_WRITE_DESCR_CMPL_EVT;
}
bta_hh_sm_execute(p_dev_cb, evt, (tBTA_HH_DATA *)&p_data->write);
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_SEARCH_RES_EVT: /* 7 */
bta_hh_le_search_result(&p_data->srvc_res);
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;
}
}
/*******************************************************************************
**
** 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(BD_ADDR bd_addr, UINT8 rpt_id)
{
tBTA_HH_DEV_CB *p_cb = NULL;
tBTA_HH_LE_RPT *p_rpt ;
UINT8 index = BTA_HH_IDX_INVALID;
index = bta_hh_find_cb(bd_addr);
if ((index = bta_hh_find_cb(bd_addr)) == BTA_HH_IDX_INVALID) {
APPL_TRACE_ERROR("unknown device");
return;
}
p_cb = &bta_hh_cb.kdev[index];
p_rpt = bta_hh_le_find_rpt_by_idtype(p_cb->hid_srvc[BTA_HH_LE_SRVC_DEF].report, p_cb->mode, BTA_HH_RPTT_INPUT, rpt_id);
if (p_rpt == NULL) {
APPL_TRACE_ERROR("bta_hh_le_write_rpt: no matching report");
return;
}
bta_hh_le_read_char_dscrpt(p_cb,
UUID_SERVCLASS_LE_HID,
BTA_HH_LE_SRVC_DEF,
p_rpt->uuid,
p_rpt->inst_id,
GATT_UUID_CHAR_CLIENT_CONFIG);
return;
}
/*******************************************************************************
**
** Function bta_hh_le_search_scps
**
** Description discovery scan parameter service if act as report host, otherwise
** finish LE connection.
**
** Parameters:
**
*******************************************************************************/
static void bta_hh_le_search_scps(tBTA_HH_DEV_CB *p_cb)
{
tBT_UUID pri_srvc;
if ( p_cb->mode == BTA_HH_PROTO_RPT_MODE) {
p_cb->disc_active |= BTA_HH_LE_DISC_SCPS;
/* start service discovery for Scan Parameter service */
pri_srvc.len = LEN_UUID_16;
pri_srvc.uu.uuid16 = UUID_SERVCLASS_SCAN_PARAM;
BTA_GATTC_ServiceSearchRequest(p_cb->conn_id, &pri_srvc);
} else {
bta_hh_le_open_cmpl(p_cb);
}
}
/*******************************************************************************
**
** Function bta_hh_le_search_scps_chars
**
** Description find ScPS optional characteristics scan refresh
**
** Parameters:
**
*******************************************************************************/
static void bta_hh_le_search_scps_chars(tBTA_HH_DEV_CB *p_cb)
{
tBTA_GATT_SRVC_ID srvc_id;
tBT_UUID char_cond;
tBTA_GATTC_CHAR_ID char_result;
tBTA_GATT_CHAR_PROP prop;
p_cb->scps_supported = TRUE;
bta_hh_le_fill_16bits_srvc_id(TRUE, 0, UUID_SERVCLASS_SCAN_PARAM, &srvc_id);
char_cond.len = LEN_UUID_16;
char_cond.uu.uuid16 = GATT_UUID_SCAN_REFRESH;
/* look for scan refresh */
if (BTA_GATTC_GetFirstChar( p_cb->conn_id,
&srvc_id,
&char_cond,
&char_result,
&prop) == BTA_GATT_OK) {
if (prop & BTA_GATT_CHAR_PROP_BIT_NOTIFY) {
p_cb->scps_notify |= BTA_HH_LE_SCPS_NOTIFY_SPT;
} else {
p_cb->scps_notify = BTA_HH_LE_SCPS_NOTIFY_NONE;
}
}
}
/*******************************************************************************
**
** Function bta_hh_le_register_scpp_notif
**
** Description register scan parameter refresh notitication complete
**
**
** Parameters:
**
*******************************************************************************/
static void bta_hh_le_register_scpp_notif(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status)
{
UINT8 sec_flag = 0;
tBTA_GATTC_CHAR_ID char_id;
/* if write scan parameter sucessful */
/* if bonded and notification is not enabled, configure the client configuration */
if (status == BTA_GATT_OK &&
(p_dev_cb->scps_notify & BTA_HH_LE_SCPS_NOTIFY_SPT) != 0 &&
(p_dev_cb->scps_notify & BTA_HH_LE_SCPS_NOTIFY_ENB) == 0) {
BTM_GetSecurityFlagsByTransport(p_dev_cb->addr, &sec_flag, BT_TRANSPORT_LE);
if ((sec_flag & BTM_SEC_FLAG_LKEY_KNOWN)) {
if (bta_hh_le_write_char_clt_cfg (p_dev_cb,
BTA_HH_SCPP_INST_DEF,
UUID_SERVCLASS_SCAN_PARAM,
BTA_HH_SCPP_INST_DEF,
GATT_UUID_SCAN_REFRESH,
BTA_GATT_CLT_CONFIG_NOTIFICATION)) {
bta_hh_le_fill_16bits_srvc_id(TRUE, BTA_HH_SCPP_INST_DEF, UUID_SERVCLASS_SCAN_PARAM, &char_id.srvc_id);
bta_hh_le_fill_16bits_char_id(BTA_HH_SCPP_INST_DEF, GATT_UUID_SCAN_REFRESH, &char_id.char_id);
BTA_GATTC_RegisterForNotifications(bta_hh_cb.gatt_if,
p_dev_cb->addr,
&char_id);
return;
}
}
}
bta_hh_le_register_scpp_notif_cmpl(p_dev_cb, status);
}
/*******************************************************************************
**
** Function bta_hh_le_register_scpp_notif_cmpl
**
** Description action function to register scan parameter refresh notitication
**
** Parameters:
**
*******************************************************************************/
static void bta_hh_le_register_scpp_notif_cmpl(tBTA_HH_DEV_CB *p_dev_cb, tBTA_GATT_STATUS status)
{
tBTA_HH_CBDATA cback_data ;
UINT16 cb_evt = p_dev_cb->w4_evt;
if (status == BTA_GATT_OK) {
p_dev_cb->scps_notify = (BTA_HH_LE_SCPS_NOTIFY_ENB | BTA_HH_LE_SCPS_NOTIFY_SPT);
}
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_process_cache_rpt
**
** Description Process the cached reports
**
** Parameters:
**
*******************************************************************************/
static void bta_hh_process_cache_rpt (tBTA_HH_DEV_CB *p_cb,
tBTA_HH_RPT_CACHE_ENTRY *p_rpt_cache,
UINT8 num_rpt)
{
UINT8 i = 0;
tBTA_HH_LE_RPT *p_rpt;
if (num_rpt != 0) { /* no cache is found */
p_cb->hid_srvc[BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt_cache->inst_id)].in_use = TRUE;
/* set the descriptor info */
p_cb->hid_srvc[BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt_cache->inst_id)].descriptor.dl_len =
p_cb->dscp_info.descriptor.dl_len;
p_cb->hid_srvc[BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt_cache->inst_id)].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,
BTA_HH_LE_RPT_GET_SRVC_INST_ID(p_rpt_cache->inst_id),
p_rpt_cache->rpt_uuid,
BTA_HH_LE_RPT_GET_RPT_INST_ID(p_rpt_cache->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
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