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attrib/gatt.c
 
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/*
 
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 *
 
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 *  BlueZ - Bluetooth protocol stack for Linux
 
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 *
 
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 *  Copyright (C) 2010  Nokia Corporation
 
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 *  Copyright (C) 2010  Marcel Holtmann <marcel@holtmann.org>
 
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 *
 
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 *
 
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 *  This program is free software; you can redistribute it and/or modify
 
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 *  it under the terms of the GNU General Public License as published by
 
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 *  the Free Software Foundation; either version 2 of the License, or
 
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 *  (at your option) any later version.
 
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 *
 
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 *  This program is distributed in the hope that it will be useful,
 
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 *  GNU General Public License for more details.
 
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 *
 
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 *  You should have received a copy of the GNU General Public License
 
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 *  along with this program; if not, write to the Free Software
 
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
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 *
 
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 */
 
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#include <stdint.h>
 
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#include <glib.h>
 
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#include <bluetooth/sdp.h>
 
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#include <bluetooth/sdp_lib.h>
 
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#include "att.h"
 
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#include "gattrib.h"
 
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#include "gatt.h"
 
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guint gatt_discover_primary(GAttrib *attrib, uint16_t start, uint16_t end,
 
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                uuid_t *uuid, GAttribResultFunc func, gpointer user_data)
 
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{
 
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        uint8_t pdu[ATT_DEFAULT_MTU];
 
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        uuid_t prim;
 
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        guint16 plen;
 
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        uint8_t op;
 
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        sdp_uuid16_create(&prim, GATT_PRIM_SVC_UUID);
 
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        if (uuid == NULL) {
 
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                /* Discover all primary services */
 
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                op = ATT_OP_READ_BY_GROUP_REQ;
 
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                plen = enc_read_by_grp_req(start, end, &prim, pdu, sizeof(pdu));
 
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        } else {
 
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                const void *value;
 
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                int vlen;
 
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                /* Discover primary service by service UUID */
 
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                op = ATT_OP_FIND_BY_TYPE_REQ;
 
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                if (uuid->type == SDP_UUID16) {
 
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                        value = &uuid->value.uuid16;
 
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                        vlen = sizeof(uuid->value.uuid16);
 
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                } else {
 
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                        value = &uuid->value.uuid128;
 
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                        vlen = sizeof(uuid->value.uuid128);
 
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                }
 
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                plen = enc_find_by_type_req(start, end, &prim, value, vlen,
 
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                                                        pdu, sizeof(pdu));
 
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        }
 
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        if (plen == 0)
 
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                return 0;
 
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        return g_attrib_send(attrib, op, pdu, plen, func, user_data, NULL);
 
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}
 
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guint gatt_discover_char(GAttrib *attrib, uint16_t start, uint16_t end,
 
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                                GAttribResultFunc func, gpointer user_data)
 
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{
 
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        uuid_t uuid;
 
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        sdp_uuid16_create(&uuid, GATT_CHARAC_UUID);
 
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        return gatt_read_char_by_uuid(attrib, start, end, &uuid, func,
 
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                                                        user_data);
 
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}
 
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guint gatt_read_char_by_uuid(GAttrib *attrib, uint16_t start, uint16_t end,
 
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                                        uuid_t *uuid, GAttribResultFunc func,
 
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                                        gpointer user_data)
 
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{
 
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        uint8_t pdu[ATT_DEFAULT_MTU];
 
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        guint16 plen;
 
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        plen = enc_read_by_type_req(start, end, uuid, pdu, sizeof(pdu));
 
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        if (plen == 0)
 
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                return 0;
 
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        return g_attrib_send(attrib, ATT_OP_READ_BY_TYPE_REQ,
 
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                                        pdu, plen, func, user_data, NULL);
 
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}
 
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guint gatt_read_char(GAttrib *attrib, uint16_t handle, GAttribResultFunc func,
 
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                                                        gpointer user_data)
 
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{
 
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        uint8_t pdu[ATT_DEFAULT_MTU];
 
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        guint16 plen;
 
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        plen = enc_read_req(handle, pdu, sizeof(pdu));
 
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        return g_attrib_send(attrib, ATT_OP_READ_REQ, pdu, plen, func,
 
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                                                        user_data, NULL);
 
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}
 
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guint gatt_write_char(GAttrib *attrib, uint16_t handle, uint8_t *value,
 
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                        int vlen, GAttribResultFunc func, gpointer user_data)
 
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{
 
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        uint8_t pdu[ATT_DEFAULT_MTU];
 
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        guint16 plen;
 
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        plen = enc_write_req(handle, value, vlen, pdu, sizeof(pdu));
 
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        return g_attrib_send(attrib, ATT_OP_WRITE_REQ, pdu, plen, func,
 
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                                                        user_data, NULL);
 
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}
 
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guint gatt_find_info(GAttrib *attrib, uint16_t start, uint16_t end,
 
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                                GAttribResultFunc func, gpointer user_data)
 
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{
 
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        uint8_t pdu[ATT_DEFAULT_MTU];
 
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        guint16 plen;
 
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        plen = enc_find_info_req(start, end, pdu, sizeof(pdu));
 
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        if (plen == 0)
 
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                return 0;
 
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        return g_attrib_send(attrib, ATT_OP_FIND_INFO_REQ, pdu, plen, func,
 
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                                                        user_data, NULL);
 
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}
 
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guint gatt_write_cmd(GAttrib *attrib, uint16_t handle, uint8_t *value, int vlen,
 
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                                GDestroyNotify notify, gpointer user_data)
 
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{
 
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        uint8_t pdu[ATT_DEFAULT_MTU];
 
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        guint16 plen;
 
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        plen = enc_write_cmd(handle, value, vlen, pdu, sizeof(pdu));
 
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        return g_attrib_send(attrib, ATT_OP_WRITE_CMD, pdu, plen, NULL,
 
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                                                        user_data, notify);
 
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}