diff options
Diffstat (limited to 'stack/gatt/gatt_attr.c')
| -rw-r--r-- | stack/gatt/gatt_attr.c | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/stack/gatt/gatt_attr.c b/stack/gatt/gatt_attr.c new file mode 100644 index 0000000..b7ec2fc --- /dev/null +++ b/stack/gatt/gatt_attr.c @@ -0,0 +1,278 @@ +/****************************************************************************** + * + * Copyright (C) 2008-2012 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 main GATT server attributes access request + * handling functions. + * + ******************************************************************************/ + +#include "bt_target.h" + +#include "gatt_api.h" +#include "gatt_int.h" + +#if BLE_INCLUDED == TRUE + +#define GATTP_MAX_NUM_INC_SVR 0 +#define GATTP_MAX_CHAR_NUM 2 +#define GATTP_MAX_ATTR_NUM (GATTP_MAX_CHAR_NUM * 2 + GATTP_MAX_NUM_INC_SVR + 1) +#define GATTP_MAX_CHAR_VALUE_SIZE 50 + +#ifndef GATTP_ATTR_DB_SIZE +#define GATTP_ATTR_DB_SIZE GATT_DB_MEM_SIZE(GATTP_MAX_NUM_INC_SVR, GATTP_MAX_CHAR_NUM, GATTP_MAX_CHAR_VALUE_SIZE) +#endif + +static void gatt_profile_request_cback (UINT16 conn_id, UINT32 trans_id, UINT8 op_code, tGATTS_DATA *p_data); +static void gatt_profile_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, BOOLEAN connected, tGATT_DISCONN_REASON reason); + +static tGATT_CBACK gatt_profile_cback = +{ + gatt_profile_connect_cback, + NULL, + NULL, + NULL, + gatt_profile_request_cback +} ; + +/******************************************************************************* +** +** Function gatt_profile_find_conn_id_by_bd_addr +** +** Description The function searches all LCB with macthing bd address +** +** Returns total number of clcb found. +** +*******************************************************************************/ +UINT16 gatt_profile_find_conn_id_by_bd_addr(BD_ADDR bda) +{ + UINT8 i_clcb; + tGATT_PROFILE_CLCB *p_clcb = NULL; + + for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_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 gatt_profile_find_clcb_by_bd_addr +** +** Description The function searches all LCBs with macthing bd address. +** +** Returns Pointer to the found link conenction control block. +** +*******************************************************************************/ +tGATT_PROFILE_CLCB *gatt_profile_find_clcb_by_bd_addr(BD_ADDR bda) +{ + UINT8 i_clcb; + tGATT_PROFILE_CLCB *p_clcb = NULL; + + for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_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 p_clcb; +} + +/******************************************************************************* +** +** Function gatt_profile_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. +** +*******************************************************************************/ +tGATT_PROFILE_CLCB *gatt_profile_clcb_alloc (UINT16 conn_id, BD_ADDR bda) +{ + UINT8 i_clcb = 0; + tGATT_PROFILE_CLCB *p_clcb = NULL; + + for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_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 gatt_profile_clcb_dealloc +** +** Description The function deallocates a GATT profile connection link control block +** +** Returns NTrue the deallocation is successful +** +*******************************************************************************/ +BOOLEAN gatt_profile_clcb_dealloc (UINT16 conn_id) +{ + UINT8 i_clcb = 0; + tGATT_PROFILE_CLCB *p_clcb = NULL; + + for (i_clcb = 0, p_clcb= gatt_cb.profile_clcb; i_clcb < GATT_MAX_APPS; i_clcb++, p_clcb++) + { + if (p_clcb->in_use && p_clcb->connected && (p_clcb->conn_id == conn_id)) + { + memset(p_clcb, 0, sizeof(tGATT_PROFILE_CLCB)); + return TRUE; + } + } + return FALSE; +} + + +/******************************************************************************* +** +** Function gatt_profile_request_cback +** +** Description GATT profile attribute access request callback. +** +** Returns void. +** +*******************************************************************************/ +static void gatt_profile_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 ; + BOOLEAN ignore = FALSE; + + memset(&rsp_msg, 0, sizeof(tGATTS_RSP)); + + switch (type) + { + case GATTS_REQ_TYPE_READ: + status = GATT_READ_NOT_PERMIT; + break; + + case GATTS_REQ_TYPE_WRITE: + status = GATT_WRITE_NOT_PERMIT; + break; + + case GATTS_REQ_TYPE_WRITE_EXEC: + //case GATT_CMD_WRITE: + ignore = TRUE; + GATT_TRACE_EVENT0("Ignore GATT_REQ_EXEC_WRITE/WRITE_CMD" ); + break; + + case GATTS_REQ_TYPE_MTU: + GATT_TRACE_EVENT1("Get MTU exchange new mtu size: %d", p_data->mtu); + ignore = TRUE; + break; + + default: + GATT_TRACE_EVENT1("Unknown/unexpected LE GAP ATT request: 0x%02x", type); + break; + } + + if (!ignore) + GATTS_SendRsp (conn_id, trans_id, status, &rsp_msg); + +} + +/******************************************************************************* +** +** Function gatt_profile_connect_cback +** +** Description Gatt profile connection callback. +** +** Returns void +** +*******************************************************************************/ +static void gatt_profile_connect_cback (tGATT_IF gatt_if, BD_ADDR bda, UINT16 conn_id, + BOOLEAN connected, tGATT_DISCONN_REASON reason) +{ + GATT_TRACE_EVENT5 ("gatt_profile_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 (gatt_profile_clcb_alloc(conn_id, bda) == NULL) + { + GATT_TRACE_ERROR0 ("gatt_profile_connect_cback: no_resource"); + return; + } + } + else + { + gatt_profile_clcb_dealloc(conn_id); + } + +} + +/******************************************************************************* +** +** Function gatt_profile_db_init +** +** Description Initializa the GATT profile attribute database. +** +*******************************************************************************/ +void gatt_profile_db_init (void) +{ + tBT_UUID app_uuid = {LEN_UUID_128, {0}}; + tBT_UUID uuid = {LEN_UUID_16, {UUID_SERVCLASS_GATT_SERVER}}; + UINT16 service_handle = 0; + tGATT_STATUS status; + + /* Fill our internal UUID with a fixed pattern 0x81 */ + memset (&app_uuid.uu.uuid128, 0x81, LEN_UUID_128); + + + /* Create a GATT profile service */ + gatt_cb.gatt_if = GATT_Register(&app_uuid, &gatt_profile_cback); + GATT_StartIf(gatt_cb.gatt_if); + + service_handle = GATTS_CreateService (gatt_cb.gatt_if , &uuid, 0, GATTP_MAX_ATTR_NUM, TRUE); + /* add Service Changed characteristic + */ + uuid.uu.uuid16 = gatt_cb.gattp_attr.uuid = GATT_UUID_GATT_SRV_CHGD; + gatt_cb.gattp_attr.service_change = 0; + gatt_cb.gattp_attr.handle = + gatt_cb.handle_of_h_r = GATTS_AddCharacteristic(service_handle, &uuid, 0, GATT_CHAR_PROP_BIT_INDICATE); + + GATT_TRACE_DEBUG1 ("gatt_profile_db_init: handle of service changed%d", + gatt_cb.handle_of_h_r ); + + /* start service + */ + status = GATTS_StartService (gatt_cb.gatt_if, service_handle, GATT_TRANSPORT_LE_BR_EDR); + + GATT_TRACE_DEBUG2 ("gatt_profile_db_init: gatt_if=%d start status%d", + gatt_cb.gatt_if, status); +} + +#endif /* BLE_INCLUDED */ |