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PL286/system/bt/stack/hid/hidd_api.cc

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/******************************************************************************
*
* Copyright (C) 2016 The Android Open Source Project
* Copyright (C) 2002-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
/******************************************************************************
*
* This file contains the HID Device API entry points
*
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bt_types.h"
#include "btm_api.h"
#include "btu.h"
#include "hidd_api.h"
#include "hidd_int.h"
#include "hiddefs.h"
#if HID_DYNAMIC_MEMORY == FALSE
tHID_DEV_CTB hd_cb;
#endif
/*******************************************************************************
*
* Function HID_DevInit
*
* Description Initializes control block
*
* Returns void
*
******************************************************************************/
void HID_DevInit(void) {
uint8_t log_level = hd_cb.trace_level;
HIDD_TRACE_API("%s", __func__);
memset(&hd_cb, 0, sizeof(tHID_DEV_CTB));
hd_cb.trace_level = log_level;
}
/*******************************************************************************
*
* Function HID_DevSetTraceLevel
*
* Description This function sets the trace level for HID Dev. If called
*with
* a value of 0xFF, it simply reads the current trace level.
*
* Returns the new (current) trace level
*
******************************************************************************/
uint8_t HID_DevSetTraceLevel(uint8_t new_level) {
if (new_level != 0xFF) hd_cb.trace_level = new_level;
return (hd_cb.trace_level);
}
/*******************************************************************************
*
* Function HID_DevRegister
*
* Description Registers HID device with lower layers
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevRegister(tHID_DEV_HOST_CALLBACK* host_cback) {
tHID_STATUS st;
HIDD_TRACE_API("%s", __func__);
if (hd_cb.reg_flag) return HID_ERR_ALREADY_REGISTERED;
if (host_cback == NULL) return HID_ERR_INVALID_PARAM;
/* Register with L2CAP */
st = hidd_conn_reg();
if (st != HID_SUCCESS) return st;
hd_cb.callback = host_cback;
hd_cb.reg_flag = TRUE;
if (hd_cb.pending_data) {
osi_free(hd_cb.pending_data);
hd_cb.pending_data = NULL;
}
return (HID_SUCCESS);
}
/*******************************************************************************
*
* Function HID_DevDeregister
*
* Description Deregisters HID device with lower layers
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevDeregister(void) {
HIDD_TRACE_API("%s", __func__);
if (!hd_cb.reg_flag) return (HID_ERR_NOT_REGISTERED);
hidd_conn_dereg();
hd_cb.reg_flag = FALSE;
return (HID_SUCCESS);
}
tHID_STATUS HID_DevSetSecurityLevel(uint8_t sec_lvl) {
HIDD_TRACE_API("%s", __func__);
if (!BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_HIDD_SEC_CTRL, sec_lvl,
HID_PSM_CONTROL, BTM_SEC_PROTO_HID, HIDD_SEC_CHN)) {
HIDD_TRACE_ERROR("Security Registration 1 failed");
return (HID_ERR_NO_RESOURCES);
}
if (!BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_HIDD_SEC_CTRL, sec_lvl,
HID_PSM_CONTROL, BTM_SEC_PROTO_HID, HIDD_SEC_CHN)) {
HIDD_TRACE_ERROR("Security Registration 2 failed");
return (HID_ERR_NO_RESOURCES);
}
if (!BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_HIDD_NOSEC_CTRL,
BTM_SEC_NONE, HID_PSM_CONTROL, BTM_SEC_PROTO_HID,
HIDD_NOSEC_CHN)) {
HIDD_TRACE_ERROR("Security Registration 3 failed");
return (HID_ERR_NO_RESOURCES);
}
if (!BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_HIDD_NOSEC_CTRL,
BTM_SEC_NONE, HID_PSM_CONTROL, BTM_SEC_PROTO_HID,
HIDD_NOSEC_CHN)) {
HIDD_TRACE_ERROR("Security Registration 4 failed");
return (HID_ERR_NO_RESOURCES);
}
if (!BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_HIDD_INTR, BTM_SEC_NONE,
HID_PSM_INTERRUPT, BTM_SEC_PROTO_HID, 0)) {
HIDD_TRACE_ERROR("Security Registration 5 failed");
return (HID_ERR_NO_RESOURCES);
}
if (!BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_HIDD_INTR, BTM_SEC_NONE,
HID_PSM_INTERRUPT, BTM_SEC_PROTO_HID, 0)) {
HIDD_TRACE_ERROR("Security Registration 6 failed");
return (HID_ERR_NO_RESOURCES);
}
return (HID_SUCCESS);
}
/*******************************************************************************
*
* Function HID_DevAddRecord
*
* Description Creates SDP record for HID device
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevAddRecord(uint32_t handle, char* p_name, char* p_description,
char* p_provider, uint16_t subclass,
uint16_t desc_len, uint8_t* p_desc_data) {
bool result = TRUE;
HIDD_TRACE_API("%s", __func__);
// Service Class ID List
if (result) {
uint16_t uuid = UUID_SERVCLASS_HUMAN_INTERFACE;
result &= SDP_AddServiceClassIdList(handle, 1, &uuid);
}
// Protocol Descriptor List
if (result) {
tSDP_PROTOCOL_ELEM proto_list[2];
proto_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
proto_list[0].num_params = 1;
proto_list[0].params[0] = BT_PSM_HIDC;
proto_list[1].protocol_uuid = UUID_PROTOCOL_HIDP;
proto_list[1].num_params = 0;
result &= SDP_AddProtocolList(handle, 2, proto_list);
}
// Language Base Attribute ID List
if (result) {
result &= SDP_AddLanguageBaseAttrIDList(handle, LANG_ID_CODE_ENGLISH,
LANG_ID_CHAR_ENCODE_UTF8,
LANGUAGE_BASE_ID);
}
// Additional Protocol Descriptor List
if (result) {
tSDP_PROTO_LIST_ELEM add_proto_list;
add_proto_list.num_elems = 2;
add_proto_list.list_elem[0].protocol_uuid = UUID_PROTOCOL_L2CAP;
add_proto_list.list_elem[0].num_params = 1;
add_proto_list.list_elem[0].params[0] = BT_PSM_HIDI;
add_proto_list.list_elem[1].protocol_uuid = UUID_PROTOCOL_HIDP;
add_proto_list.list_elem[1].num_params = 0;
result &= SDP_AddAdditionProtoLists(handle, 1, &add_proto_list);
}
// Service Name (O)
// Service Description (O)
// Provider Name (O)
if (result) {
const char* srv_name = p_name;
const char* srv_desc = p_description;
const char* provider_name = p_provider;
result &= SDP_AddAttribute(handle, ATTR_ID_SERVICE_NAME, TEXT_STR_DESC_TYPE,
strlen(srv_name) + 1, (uint8_t*)srv_name);
result &= SDP_AddAttribute(handle, ATTR_ID_SERVICE_DESCRIPTION,
TEXT_STR_DESC_TYPE, strlen(srv_desc) + 1,
(uint8_t*)srv_desc);
result &=
SDP_AddAttribute(handle, ATTR_ID_PROVIDER_NAME, TEXT_STR_DESC_TYPE,
strlen(provider_name) + 1, (uint8_t*)provider_name);
}
// Bluetooth Profile Descriptor List
if (result) {
const uint16_t profile_uuid = UUID_SERVCLASS_HUMAN_INTERFACE;
const uint16_t version = 0x0100;
result &= SDP_AddProfileDescriptorList(handle, profile_uuid, version);
}
// HID Parser Version
if (result) {
uint8_t* p;
const uint16_t rel_num = 0x0100;
const uint16_t parser_version = 0x0111;
const uint16_t prof_ver = 0x0100;
const uint8_t dev_subclass = subclass;
const uint8_t country_code = 0x21;
const uint8_t bool_false = 0x00;
const uint8_t bool_true = 0x01;
uint16_t temp;
p = (uint8_t*)&temp;
UINT16_TO_BE_STREAM(p, rel_num);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_DEVICE_RELNUM,
UINT_DESC_TYPE, 2, (uint8_t*)&temp);
p = (uint8_t*)&temp;
UINT16_TO_BE_STREAM(p, parser_version);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_PARSER_VERSION,
UINT_DESC_TYPE, 2, (uint8_t*)&temp);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_DEVICE_SUBCLASS,
UINT_DESC_TYPE, 1, (uint8_t*)&dev_subclass);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_COUNTRY_CODE, UINT_DESC_TYPE,
1, (uint8_t*)&country_code);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_VIRTUAL_CABLE,
BOOLEAN_DESC_TYPE, 1, (uint8_t*)&bool_true);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_RECONNECT_INITIATE,
BOOLEAN_DESC_TYPE, 1, (uint8_t*)&bool_true);
{
static uint8_t cdt = 0x22;
uint8_t* p_buf;
uint8_t seq_len = 4 + desc_len;
p_buf = (uint8_t*)osi_malloc(2048);
if (p_buf == NULL) {
HIDD_TRACE_ERROR("%s: Buffer allocation failure for size = 2048 ",
__func__);
return HID_ERR_NOT_REGISTERED;
}
p = p_buf;
UINT8_TO_BE_STREAM(p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
UINT8_TO_BE_STREAM(p, seq_len);
UINT8_TO_BE_STREAM(p, (UINT_DESC_TYPE << 3) | SIZE_ONE_BYTE);
UINT8_TO_BE_STREAM(p, cdt);
UINT8_TO_BE_STREAM(p, (TEXT_STR_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
UINT8_TO_BE_STREAM(p, desc_len);
ARRAY_TO_BE_STREAM(p, p_desc_data, (int)desc_len);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_DESCRIPTOR_LIST,
DATA_ELE_SEQ_DESC_TYPE, p - p_buf, p_buf);
osi_free(p_buf);
}
{
uint8_t lang_buf[8];
p = lang_buf;
uint8_t seq_len = 6;
uint16_t lang_english = 0x0409;
UINT8_TO_BE_STREAM(p, (DATA_ELE_SEQ_DESC_TYPE << 3) | SIZE_IN_NEXT_BYTE);
UINT8_TO_BE_STREAM(p, seq_len);
UINT8_TO_BE_STREAM(p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
UINT16_TO_BE_STREAM(p, lang_english);
UINT8_TO_BE_STREAM(p, (UINT_DESC_TYPE << 3) | SIZE_TWO_BYTES);
UINT16_TO_BE_STREAM(p, LANGUAGE_BASE_ID);
result &=
SDP_AddAttribute(handle, ATTR_ID_HID_LANGUAGE_ID_BASE,
DATA_ELE_SEQ_DESC_TYPE, p - lang_buf, lang_buf);
}
result &= SDP_AddAttribute(handle, ATTR_ID_HID_BATTERY_POWER,
BOOLEAN_DESC_TYPE, 1, (uint8_t*)&bool_true);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_REMOTE_WAKE,
BOOLEAN_DESC_TYPE, 1, (uint8_t*)&bool_false);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_NORMALLY_CONNECTABLE,
BOOLEAN_DESC_TYPE, 1, (uint8_t*)&bool_true);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_BOOT_DEVICE,
BOOLEAN_DESC_TYPE, 1, (uint8_t*)&bool_true);
p = (uint8_t*)&temp;
UINT16_TO_BE_STREAM(p, prof_ver);
result &= SDP_AddAttribute(handle, ATTR_ID_HID_PROFILE_VERSION,
UINT_DESC_TYPE, 2, (uint8_t*)&temp);
}
if (result) {
uint16_t browse_group = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP;
result &= SDP_AddUuidSequence(handle, ATTR_ID_BROWSE_GROUP_LIST, 1,
&browse_group);
}
if (!result) {
HIDD_TRACE_ERROR("%s: failed to complete SDP record", __func__);
return HID_ERR_NOT_REGISTERED;
}
return HID_SUCCESS;
}
/*******************************************************************************
*
* Function HID_DevSendReport
*
* Description Sends report
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevSendReport(uint8_t channel, uint8_t type, uint8_t id,
uint16_t len, uint8_t* p_data) {
HIDD_TRACE_VERBOSE("%s: channel=%d type=%d id=%d len=%d", __func__, channel,
type, id, len);
if (channel == HID_CHANNEL_CTRL) {
return hidd_conn_send_data(HID_CHANNEL_CTRL, HID_TRANS_DATA, type, id, len,
p_data);
}
if (channel == HID_CHANNEL_INTR && type == HID_PAR_REP_TYPE_INPUT) {
// on INTR we can only send INPUT
return hidd_conn_send_data(HID_CHANNEL_INTR, HID_TRANS_DATA,
HID_PAR_REP_TYPE_INPUT, id, len, p_data);
}
return HID_ERR_INVALID_PARAM;
}
/*******************************************************************************
*
* Function HID_DevVirtualCableUnplug
*
* Description Sends Virtual Cable Unplug
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevVirtualCableUnplug(void) {
HIDD_TRACE_API("%s", __func__);
return hidd_conn_send_data(HID_CHANNEL_CTRL, HID_TRANS_CONTROL,
HID_PAR_CONTROL_VIRTUAL_CABLE_UNPLUG, 0, 0, NULL);
}
/*******************************************************************************
*
* Function HID_DevPlugDevice
*
* Description Establishes virtual cable to given host
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevPlugDevice(const RawAddress& addr) {
hd_cb.device.in_use = TRUE;
hd_cb.device.addr = addr;
return HID_SUCCESS;
}
/*******************************************************************************
*
* Function HID_DevUnplugDevice
*
* Description Unplugs virtual cable from given host
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevUnplugDevice(const RawAddress& addr) {
if (hd_cb.device.addr == addr) {
hd_cb.device.in_use = FALSE;
hd_cb.device.conn.conn_state = HID_CONN_STATE_UNUSED;
hd_cb.device.conn.ctrl_cid = 0;
hd_cb.device.conn.intr_cid = 0;
}
return HID_SUCCESS;
}
/*******************************************************************************
*
* Function HID_DevConnect
*
* Description Connects to device
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevConnect(void) {
if (!hd_cb.reg_flag) {
return HID_ERR_NOT_REGISTERED;
}
if (!hd_cb.device.in_use) {
return HID_ERR_INVALID_PARAM;
}
if (hd_cb.device.state != HIDD_DEV_NO_CONN) {
return HID_ERR_ALREADY_CONN;
}
return hidd_conn_initiate();
}
/*******************************************************************************
*
* Function HID_DevDisconnect
*
* Description Disconnects from device
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevDisconnect(void) {
if (!hd_cb.reg_flag) {
return HID_ERR_NOT_REGISTERED;
}
if (!hd_cb.device.in_use) {
return HID_ERR_INVALID_PARAM;
}
if (hd_cb.device.state == HIDD_DEV_NO_CONN) {
/* If we are still trying to connect, just close the connection. */
if (hd_cb.device.conn.conn_state != HID_CONN_STATE_UNUSED) {
tHID_STATUS ret = hidd_conn_disconnect();
hd_cb.device.conn.conn_state = HID_CONN_STATE_UNUSED;
hd_cb.callback(hd_cb.device.addr, HID_DHOST_EVT_CLOSE,
HID_ERR_DISCONNECTING, NULL);
return ret;
}
return HID_ERR_NO_CONNECTION;
}
return hidd_conn_disconnect();
}
/*******************************************************************************
*
* Function HID_DevSetIncomingPolicy
*
* Description Sets policy for incoming connections (allowed/disallowed)
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevSetIncomingPolicy(bool allow) {
hd_cb.allow_incoming = allow;
return HID_SUCCESS;
}
/*******************************************************************************
*
* Function HID_DevReportError
*
* Description Reports error for Set Report via HANDSHAKE
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevReportError(uint8_t error) {
uint8_t handshake_param;
HIDD_TRACE_API("%s: error = %d", __func__, error);
switch (error) {
case HID_PAR_HANDSHAKE_RSP_SUCCESS:
case HID_PAR_HANDSHAKE_RSP_NOT_READY:
case HID_PAR_HANDSHAKE_RSP_ERR_INVALID_REP_ID:
case HID_PAR_HANDSHAKE_RSP_ERR_UNSUPPORTED_REQ:
case HID_PAR_HANDSHAKE_RSP_ERR_INVALID_PARAM:
case HID_PAR_HANDSHAKE_RSP_ERR_UNKNOWN:
case HID_PAR_HANDSHAKE_RSP_ERR_FATAL:
handshake_param = error;
break;
default:
handshake_param = HID_PAR_HANDSHAKE_RSP_ERR_UNKNOWN;
break;
}
return hidd_conn_send_data(0, HID_TRANS_HANDSHAKE, handshake_param, 0, 0,
NULL);
}
/*******************************************************************************
*
* Function HID_DevGetDevice
*
* Description Returns the BD Address of virtually cabled device
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevGetDevice(RawAddress* addr) {
HIDD_TRACE_API("%s", __func__);
if (hd_cb.device.in_use) {
*addr = hd_cb.device.addr;
} else {
return HID_ERR_NOT_REGISTERED;
}
return HID_SUCCESS;
}
/*******************************************************************************
*
* Function HID_DevSetIncomingQos
*
* Description Sets Incoming QoS values for Interrupt L2CAP Channel
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevSetIncomingQos(uint8_t service_type, uint32_t token_rate,
uint32_t token_bucket_size,
uint32_t peak_bandwidth, uint32_t latency,
uint32_t delay_variation) {
HIDD_TRACE_API("%s", __func__);
hd_cb.use_in_qos = TRUE;
hd_cb.in_qos.service_type = service_type;
hd_cb.in_qos.token_rate = token_rate;
hd_cb.in_qos.token_bucket_size = token_bucket_size;
hd_cb.in_qos.peak_bandwidth = peak_bandwidth;
hd_cb.in_qos.latency = latency;
hd_cb.in_qos.delay_variation = delay_variation;
return HID_SUCCESS;
}
/*******************************************************************************
*
* Function HID_DevSetOutgoingQos
*
* Description Sets Outgoing QoS values for Interrupt L2CAP Channel
*
* Returns tHID_STATUS
*
******************************************************************************/
tHID_STATUS HID_DevSetOutgoingQos(uint8_t service_type, uint32_t token_rate,
uint32_t token_bucket_size,
uint32_t peak_bandwidth, uint32_t latency,
uint32_t delay_variation) {
HIDD_TRACE_API("%s", __func__);
hd_cb.l2cap_intr_cfg.qos_present = TRUE;
hd_cb.l2cap_intr_cfg.qos.service_type = service_type;
hd_cb.l2cap_intr_cfg.qos.token_rate = token_rate;
hd_cb.l2cap_intr_cfg.qos.token_bucket_size = token_bucket_size;
hd_cb.l2cap_intr_cfg.qos.peak_bandwidth = peak_bandwidth;
hd_cb.l2cap_intr_cfg.qos.latency = latency;
hd_cb.l2cap_intr_cfg.qos.delay_variation = delay_variation;
return HID_SUCCESS;
}