/******************************************************************************
*
* Copyright (C) 1999-2013 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 "bt_target.h"
#include "bt_utils.h"
#include "gatt_api.h"
#include "gatt_int.h"
#include "srvc_eng_int.h"
#if BLE_INCLUDED == TRUE
//#if DIS_INCLUDED == TRUE
#include "srvc_dis_int.h"
//#endif
#include "srvc_battery_int.h"
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
static void srvc_eng_s_request_cback (UINT16 conn_id, UINT32 trans_id, UINT8 op_code, tGATTS_DATA *p_data);
static void srvc_eng_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected,
tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport);
static void srvc_eng_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
static tGATT_CBACK srvc_gatt_cback =
{
srvc_eng_connect_cback,
srvc_eng_c_cmpl_cback,
NULL,
NULL,
srvc_eng_s_request_cback,
NULL,
NULL
} ;
/* type for action functions */
typedef void (*tSRVC_ENG_C_CMPL_ACTION)(tSRVC_CLCB *p_clcb, tGATTC_OPTYPE op,
tGATT_STATUS status, tGATT_CL_COMPLETE *p_data);
const tSRVC_ENG_C_CMPL_ACTION srvc_eng_c_cmpl_act[SRVC_ID_MAX] =
{
dis_c_cmpl_cback,
};
tSRVC_ENG_CB srvc_eng_cb;
/*******************************************************************************
**
** Function srvc_eng_find_conn_id_by_bd_addr
**
** Description The function searches all LCB with macthing bd address
**
** Returns total number of clcb found.
**
*******************************************************************************/
UINT16 srvc_eng_find_conn_id_by_bd_addr(BD_ADDR bda)
{
UINT8 i_clcb;
tSRVC_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
{
if (p_clcb->in_use && p_clcb->connected && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN))
{
return p_clcb->conn_id;
}
}
return GATT_INVALID_CONN_ID;
}
/*******************************************************************************
**
** Function srvc_eng_find_clcb_by_bd_addr
**
** Description The function searches all LCBs with macthing bd address.
**
** Returns Pointer to the found link conenction control block.
**
*******************************************************************************/
tSRVC_CLCB *srvc_eng_find_clcb_by_bd_addr(BD_ADDR bda)
{
UINT8 i_clcb;
tSRVC_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
{
if (p_clcb->in_use && p_clcb->connected && !memcmp(p_clcb->bda, bda, BD_ADDR_LEN))
{
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function srvc_eng_find_clcb_by_conn_id
**
** Description The function searches all LCBs with macthing connection ID.
**
** Returns Pointer to the found link conenction control block.
**
*******************************************************************************/
tSRVC_CLCB *srvc_eng_find_clcb_by_conn_id(UINT16 conn_id)
{
UINT8 i_clcb;
tSRVC_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
{
if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id)
{
return p_clcb;
}
}
return NULL;
}
/*******************************************************************************
**
** Function srvc_eng_find_clcb_by_conn_id
**
** Description The function searches all LCBs with macthing connection ID.
**
** Returns Pointer to the found link conenction control block.
**
*******************************************************************************/
UINT8 srvc_eng_find_clcb_idx_by_conn_id(UINT16 conn_id)
{
UINT8 i_clcb;
tSRVC_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
{
if (p_clcb->in_use && p_clcb->connected && p_clcb->conn_id == conn_id)
{
return i_clcb;
}
}
return SRVC_MAX_APPS;
}
/*******************************************************************************
**
** Function srvc_eng_clcb_alloc
**
** Description The function allocates a GATT profile connection link control block
**
** Returns NULL if not found. Otherwise pointer to the connection link block.
**
*******************************************************************************/
tSRVC_CLCB *srvc_eng_clcb_alloc (UINT16 conn_id, BD_ADDR bda)
{
UINT8 i_clcb = 0;
tSRVC_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
{
if (!p_clcb->in_use)
{
p_clcb->in_use = TRUE;
p_clcb->conn_id = conn_id;
p_clcb->connected = TRUE;
memcpy (p_clcb->bda, bda, BD_ADDR_LEN);
break;
}
}
return p_clcb;
}
/*******************************************************************************
**
** Function srvc_eng_clcb_dealloc
**
** Description The function deallocates a GATT profile connection link control block
**
** Returns True the deallocation is successful
**
*******************************************************************************/
BOOLEAN srvc_eng_clcb_dealloc (UINT16 conn_id)
{
UINT8 i_clcb = 0;
tSRVC_CLCB *p_clcb = NULL;
for (i_clcb = 0, p_clcb= srvc_eng_cb.clcb; i_clcb < SRVC_MAX_APPS; i_clcb++, p_clcb++)
{
if (p_clcb->in_use && p_clcb->connected && (p_clcb->conn_id == conn_id))
{
unsigned j;
for (j = 0; j < ARRAY_SIZE(p_clcb->dis_value.data_string); j++) {
if (p_clcb->dis_value.data_string[j]) {
GKI_freebuf(p_clcb->dis_value.data_string[j]);
}
}
memset(p_clcb, 0, sizeof(tSRVC_CLCB));
return TRUE;
}
}
return FALSE;
}
/*******************************************************************************
** Service Engine Server Attributes Database Read/Read Blob Request process
*******************************************************************************/
UINT8 srvc_eng_process_read_req (UINT8 clcb_idx, tGATT_READ_REQ *p_data, tGATTS_RSP *p_rsp, tGATT_STATUS *p_status)
{
tGATT_STATUS status = GATT_NOT_FOUND;
UINT8 act = SRVC_ACT_RSP;
if (p_data->is_long)
p_rsp->attr_value.offset = p_data->offset;
p_rsp->attr_value.handle = p_data->handle;
if (dis_valid_handle_range(p_data->handle))
act = dis_read_attr_value(clcb_idx, p_data->handle, &p_rsp->attr_value, p_data->is_long, p_status);
else if (battery_valid_handle_range(p_data->handle))
act = battery_s_read_attr_value(clcb_idx, p_data->handle, &p_rsp->attr_value, p_data->is_long, p_status);
else
*p_status = status;
return act;
}
/*******************************************************************************
** Service Engine Server Attributes Database write Request process
*******************************************************************************/
UINT8 srvc_eng_process_write_req (UINT8 clcb_idx, tGATT_WRITE_REQ *p_data, tGATTS_RSP *p_rsp, tGATT_STATUS *p_status)
{
UINT8 act = SRVC_ACT_RSP;
UNUSED(p_rsp);
if (dis_valid_handle_range(p_data->handle))
{
act = dis_write_attr_value(p_data, p_status);
}
else if (battery_valid_handle_range(p_data->handle))
{
act = battery_s_write_attr_value(clcb_idx, p_data, p_status);
}
else
*p_status = GATT_NOT_FOUND;
return act;
}
/*******************************************************************************
**
** Function srvc_eng_s_request_cback
**
** Description GATT DIS attribute access request callback.
**
** Returns void.
**
*******************************************************************************/
static void srvc_eng_s_request_cback (UINT16 conn_id, UINT32 trans_id, tGATTS_REQ_TYPE type,
tGATTS_DATA *p_data)
{
UINT8 status = GATT_INVALID_PDU;
tGATTS_RSP rsp_msg ;
UINT8 act = SRVC_ACT_IGNORE;
UINT8 clcb_idx = srvc_eng_find_clcb_idx_by_conn_id(conn_id);
GATT_TRACE_EVENT("srvc_eng_s_request_cback : recv type (0x%02x)", type);
memset(&rsp_msg, 0, sizeof(tGATTS_RSP));
srvc_eng_cb.clcb[clcb_idx].trans_id = trans_id;
switch (type)
{
case GATTS_REQ_TYPE_READ:
act = srvc_eng_process_read_req(clcb_idx, &p_data->read_req, &rsp_msg, &status);
break;
case GATTS_REQ_TYPE_WRITE:
act = srvc_eng_process_write_req(clcb_idx, &p_data->write_req, &rsp_msg, &status);
if (!p_data->write_req.need_rsp)
act = SRVC_ACT_IGNORE;
break;
case GATTS_REQ_TYPE_WRITE_EXEC:
GATT_TRACE_EVENT("Ignore GATT_REQ_EXEC_WRITE/WRITE_CMD" );
break;
case GATTS_REQ_TYPE_MTU:
GATT_TRACE_EVENT("Get MTU exchange new mtu size: %d", p_data->mtu);
break;
default:
GATT_TRACE_EVENT("Unknown/unexpected LE GAP ATT request: 0x%02x", type);
break;
}
srvc_eng_cb.clcb[clcb_idx].trans_id = 0;
if (act == SRVC_ACT_RSP)
GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg);
}
/*******************************************************************************
**
** Function srvc_eng_c_cmpl_cback
**
** Description Client operation complete callback.
**
** Returns void
**
*******************************************************************************/
static void srvc_eng_c_cmpl_cback (UINT16 conn_id, tGATTC_OPTYPE op, tGATT_STATUS status,
tGATT_CL_COMPLETE *p_data)
{
tSRVC_CLCB *p_clcb = srvc_eng_find_clcb_by_conn_id(conn_id);
GATT_TRACE_EVENT ("srvc_eng_c_cmpl_cback() - op_code: 0x%02x status: 0x%02x ", op, status);
if (p_clcb == NULL)
{
GATT_TRACE_ERROR("srvc_eng_c_cmpl_cback received for unknown connection");
return;
}
if (p_clcb->cur_srvc_id != SRVC_ID_NONE &&
p_clcb->cur_srvc_id <= SRVC_ID_MAX)
srvc_eng_c_cmpl_act[p_clcb->cur_srvc_id - 1](p_clcb, op, status, p_data);
}
/*******************************************************************************
**
** Function srvc_eng_connect_cback
**
** Description Gatt profile connection callback.
**
** Returns void
**
*******************************************************************************/
static void srvc_eng_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id,
BOOLEAN connected, tGATT_DISCONN_REASON reason, tBT_TRANSPORT transport)
{
UNUSED(gatt_if);
UNUSED (transport);
GATT_TRACE_EVENT ("srvc_eng_connect_cback: from %08x%04x connected:%d conn_id=%d reason = 0x%04x",
(bda[0]<<24)+(bda[1]<<16)+(bda[2]<<8)+bda[3],
(bda[4]<<8)+bda[5], connected, conn_id, reason);
if (connected)
{
if (srvc_eng_clcb_alloc(conn_id, bda) == NULL)
{
GATT_TRACE_ERROR ("srvc_eng_connect_cback: no_resource");
return;
}
}
else
{
srvc_eng_clcb_dealloc(conn_id);
}
}
/*******************************************************************************
**
** Function srvc_eng_c_cmpl_cback
**
** Description Client operation complete callback.
**
** Returns void
**
*******************************************************************************/
BOOLEAN srvc_eng_request_channel (BD_ADDR remote_bda, UINT8 srvc_id )
{
BOOLEAN set = TRUE;
tSRVC_CLCB *p_clcb = srvc_eng_find_clcb_by_bd_addr(remote_bda);
if (p_clcb == NULL)
p_clcb = srvc_eng_clcb_alloc(0, remote_bda);
if (p_clcb && p_clcb->cur_srvc_id == SRVC_ID_NONE)
p_clcb->cur_srvc_id = srvc_id;
else
set = FALSE;
return set;
}
/*******************************************************************************
**
** Function srvc_eng_release_channel
**
** Description Client operation complete callback.
**
** Returns void
**
*******************************************************************************/
void srvc_eng_release_channel (UINT16 conn_id)
{
tSRVC_CLCB *p_clcb = srvc_eng_find_clcb_by_conn_id(conn_id);
if (p_clcb == NULL)
{
GATT_TRACE_ERROR("%s: invalid connection id %d", __FUNCTION__, conn_id);
return;
}
p_clcb->cur_srvc_id = SRVC_ID_NONE;
/* check pending request */
GATT_Disconnect(p_clcb->conn_id);
}
/*******************************************************************************
**
** Function srvc_eng_init
**
** Description Initializa the GATT Service engine.
**
*******************************************************************************/
tGATT_STATUS srvc_eng_init (void)
{
tBT_UUID app_uuid = {LEN_UUID_16, {UUID_SERVCLASS_DEVICE_INFO}};
if (srvc_eng_cb.enabled)
{
GATT_TRACE_ERROR("DIS already initalized");
}
else
{
memset(&srvc_eng_cb, 0, sizeof(tDIS_CB));
/* Create a GATT profile service */
srvc_eng_cb.gatt_if = GATT_Register(&app_uuid, &srvc_gatt_cback);
GATT_StartIf(srvc_eng_cb.gatt_if);
GATT_TRACE_DEBUG ("Srvc_Init: gatt_if=%d ", srvc_eng_cb.gatt_if);
srvc_eng_cb.enabled = TRUE;
//#if DIS_INCLUDED == TRUE
dis_cb.dis_read_uuid_idx = 0xff;
//#endif
}
return GATT_SUCCESS;
}
void srvc_sr_rsp(UINT8 clcb_idx, tGATT_STATUS st, tGATTS_RSP *p_rsp)
{
if (srvc_eng_cb.clcb[clcb_idx].trans_id != 0)
{
GATTS_SendRsp(srvc_eng_cb.clcb[clcb_idx].conn_id,
srvc_eng_cb.clcb[clcb_idx].trans_id,
st,
p_rsp);
srvc_eng_cb.clcb[clcb_idx].trans_id = 0;
}
}
void srvc_sr_notify(BD_ADDR remote_bda, UINT16 handle, UINT16 len, UINT8 *p_value)
{
UINT16 conn_id = srvc_eng_find_conn_id_by_bd_addr(remote_bda);
if (conn_id != GATT_INVALID_CONN_ID)
{
GATTS_HandleValueNotification( conn_id, handle, len, p_value);
}
}
#endif