xref: /btstack/example/ancs_client_demo.c (revision a8d51f092f1b660d0f6921369ad2bc3f9368296c)
1 /*
2  * Copyright (C) 2014 BlueKitchen GmbH
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the copyright holders nor the names of
14  *    contributors may be used to endorse or promote products derived
15  *    from this software without specific prior written permission.
16  * 4. Any redistribution, use, or modification is done solely for
17  *    personal benefit and not for any commercial purpose or for
18  *    monetary gain.
19  *
20  * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
24  * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30  * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * Please inquire about commercial licensing options at
34  * [email protected]
35  *
36  */
37 
38 #define BTSTACK_FILE__ "ancs_client_demo.c"
39 
40 // *****************************************************************************
41 /* EXAMPLE_START(ancs_client_demo): LE ANCS Client - Apple Notification Service
42  *
43  */
44 #include <stdint.h>
45 #include <stdio.h>
46 #include <stdlib.h>
47 #include <string.h>
48 #include <inttypes.h>
49 
50 #include "btstack_config.h"
51 
52 #include "btstack_run_loop.h"
53 
54 #include "btstack_debug.h"
55 #include "btstack_event.h"
56 #include "btstack_memory.h"
57 #include "gap.h"
58 #include "hci.h"
59 #include "hci_dump.h"
60 #include "l2cap.h"
61 
62 #include "ble/ancs_client.h"
63 #include "ble/att_db.h"
64 #include "ble/att_server.h"
65 #include "ble/gatt_client.h"
66 #include "ble/le_device_db.h"
67 #include "ble/sm.h"
68 
69 // TODO: query full text upon notification using control point
70 // TODO: present notifications in human readable form
71 
72 // ancs_client_demo.gatt contains the declaration of the provided GATT Services + Characteristics
73 // ancs_client_demo.h    contains the binary representation of ancs_client_demo.gatt
74 // it is generated by the build system by calling: $BTSTACK_ROOT/tool/compile_gatt.py ancs_client_demo.gatt ancs_client_demo.h
75 // it needs to be regenerated when the GATT Database declared in ancs_client_demo.gatt file is modified
76 #include "ancs_client_demo.h"
77 
78 static const uint8_t adv_data[] = {
79     // Flags general discoverable, BR/EDR not supported
80     0x02, 0x01, 0x06,
81     // Name
82     0x05, 0x09, 'A', 'N', 'C', 'S',
83     // Service Solicitation, 128-bit UUIDs - ANCS (little endian)
84     0x11,0x15,0xD0,0x00,0x2D,0x12,0x1E,0x4B,0x0F,0xA4,0x99,0x4E,0xCE,0xB5,0x31,0xF4,0x05,0x79
85 };
86 static uint8_t adv_data_len = sizeof(adv_data);
87 static btstack_packet_callback_registration_t hci_event_callback_registration;
88 static btstack_packet_callback_registration_t sm_event_callback_registration;
89 
90 static void app_packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
91     UNUSED(channel);
92     UNUSED(size);
93 
94     if (packet_type != HCI_EVENT_PACKET) return;
95 
96     switch (hci_event_packet_get_type(packet)) {
97         case SM_EVENT_JUST_WORKS_REQUEST:
98             sm_just_works_confirm(sm_event_just_works_request_get_handle(packet));
99             printf("Just Works Confirmed.\n");
100             break;
101         case SM_EVENT_PASSKEY_DISPLAY_NUMBER:
102             printf("Passkey display: %"PRIu32"\n", sm_event_passkey_display_number_get_passkey(packet));
103             break;
104         default:
105             break;
106     }
107 }
108 
109 static void ancs_callback(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
110     UNUSED(packet_type);
111     UNUSED(channel);
112     UNUSED(size);
113 
114     const char * attribute_name;
115     if (hci_event_packet_get_type(packet) != HCI_EVENT_ANCS_META) return;
116     switch (hci_event_ancs_meta_get_subevent_code(packet)){
117         case ANCS_SUBEVENT_CLIENT_CONNECTED:
118             printf("ANCS Client: Connected\n");
119             break;
120         case ANCS_SUBEVENT_CLIENT_DISCONNECTED:
121             printf("ANCS Client: Disconnected\n");
122             break;
123         case ANCS_SUBEVENT_CLIENT_NOTIFICATION:
124             attribute_name = ancs_client_attribute_name_for_id(ancs_subevent_client_notification_get_attribute_id(packet));
125             if (!attribute_name) break;
126             printf("Notification: %s - %s\n", attribute_name, ancs_subevent_client_notification_get_text(packet));
127             break;
128         default:
129             break;
130     }
131 }
132 
133 int btstack_main(int argc, const char * argv[]);
134 int btstack_main(int argc, const char * argv[]){
135     (void)argc;
136     (void)argv;
137 
138     printf("BTstack ANCS Client starting up...\n");
139 
140 
141     // set up l2cap_le
142     l2cap_init();
143 
144     // setup le device db
145     le_device_db_init();
146 
147     // setup SM: Display only
148     sm_init();
149     sm_set_io_capabilities(IO_CAPABILITY_DISPLAY_ONLY);
150     sm_set_authentication_requirements( SM_AUTHREQ_BONDING );
151 
152     // register for HCI events
153     hci_event_callback_registration.callback = &app_packet_handler;
154     hci_add_event_handler(&hci_event_callback_registration);
155 
156     // register for SM events
157     sm_event_callback_registration.callback = &app_packet_handler;
158     sm_add_event_handler(&sm_event_callback_registration);
159 
160     // setup ATT server
161     att_server_init(profile_data, NULL, NULL);
162 
163     // setup ANCS Client
164     ancs_client_init();
165 
166 
167     // register for ATT Serer events
168     att_server_register_packet_handler(app_packet_handler);
169 
170     // setup GATT client
171     gatt_client_init();
172 
173     // register for ancs events
174     ancs_client_register_callback(&ancs_callback);
175 
176     // setup advertisements
177     uint16_t adv_int_min = 0x0030;
178     uint16_t adv_int_max = 0x0030;
179     uint8_t adv_type = 0;
180     bd_addr_t null_addr;
181     memset(null_addr, 0, 6);
182     gap_advertisements_set_params(adv_int_min, adv_int_max, adv_type, 0, null_addr, 0x07, 0x00);
183     gap_advertisements_set_data(adv_data_len, (uint8_t*) adv_data);
184     gap_advertisements_enable(1);
185 
186     // turn on!
187     hci_power_control(HCI_POWER_ON);
188 
189     return 0;
190 }
191 
192 /* EXAMPLE_END */