aboutsummaryrefslogtreecommitdiffstats
path: root/binding/bluetooth-api.h
blob: 31418ae965b9a756bd41de1aead64d8785f68a7d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
/*
 * Copyright 2018 Konsulko Group
 * Author: Matt Ranostay <matt.ranostay@konsulko.com>
 * Author: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
 *
 * 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.
 */

#ifndef BLUETOOTH_API_H
#define BLUETOOTH_API_H

#include <alloca.h>
#include <stdio.h>
#include <stddef.h>
#include <string.h>

#include <glib.h>

#include <json-c/json.h>

#define BLUEZ_SERVICE                 		"org.bluez"
#define BLUEZ_ADAPTER_INTERFACE			BLUEZ_SERVICE ".Adapter1"
#define BLUEZ_AGENT_INTERFACE			BLUEZ_SERVICE ".Agent1"
#define BLUEZ_AGENTMANAGER_INTERFACE		BLUEZ_SERVICE ".AgentManager1"
#define BLUEZ_DEVICE_INTERFACE			BLUEZ_SERVICE ".Device1"
#define BLUEZ_MEDIAPLAYER_INTERFACE		BLUEZ_SERVICE ".MediaPlayer1"
#define BLUEZ_MEDIATRANSPORT_INTERFACE		BLUEZ_SERVICE ".MediaTransport1"

#define BLUEZ_OBJECT_PATH			"/"
#define BLUEZ_PATH				"/org/bluez"

#define BLUEZ_ROOT_PATH(_t) \
    ({ \
     call_work_lock(ns); \
     const char *__t = (_t); \
     size_t __len = strlen(BLUEZ_PATH) + 1 + \
     strlen(__t) + 1; \
     char *__tpath; \
     __tpath = alloca(__len + 1 + 1); \
     snprintf(__tpath, __len + 1, \
             BLUEZ_PATH "/%s", __t); \
     call_work_unlock(ns); \
             __tpath; \
     })

#define BLUEZ_ERRMSG(error) \
     (error ? error->message : "unspecified")

#define FREEDESKTOP_INTROSPECT			"org.freedesktop.DBus.Introspectable"
#define FREEDESKTOP_PROPERTIES			"org.freedesktop.DBus.Properties"
#define FREEDESKTOP_OBJECTMANAGER		"org.freedesktop.DBus.ObjectManager"

#define DBUS_REPLY_TIMEOUT			(120 * 1000)
#define DBUS_REPLY_TIMEOUT_SHORT		(10 * 1000)

#define BLUEZ_AT_OBJECT				"object"
#define BLUEZ_AT_ADAPTER			"adapter"
#define BLUEZ_AT_DEVICE				"device"
#define BLUEZ_AT_AGENT				"agent"
#define BLUEZ_AT_AGENTMANAGER			"agent-manager"
#define BLUEZ_AT_MEDIAPLAYER			"mediaplayer"
#define BLUEZ_AT_MEDIATRANSPORT			"mediatransport"

#define BLUEZ_DEFAULT_ADAPTER			"hci0"
#define BLUEZ_DEFAULT_PLAYER			"player0"

struct bluetooth_state;


static inline int split_length(const char *path) {
	gchar **strings = g_strsplit(path, "/", -1);
	int ret = g_strv_length(strings) ;

	g_strfreev(strings);
	return ret;
}

static inline gchar *find_index(const char *path, int idx)
{
	gchar **strings = g_strsplit(path, "/", -1);
	gchar *item = NULL;

	if (g_strv_length(strings) > idx)
		item = g_strdup(strings[idx]);

	g_strfreev(strings);
	return item;
}

static inline gchar *bluez_return_adapter(const char *path)
{
	return find_index(path, 3);
}

static inline gchar *bluez_return_device(const char *path)
{
	return find_index(path, 4);
}

static inline gboolean is_mediaplayer1_interface(const char *path)
{
	gchar *data = NULL;
	gboolean ret;

	// Don't trigger on NowPlaying, Item, etc paths
	if (split_length(path) != 6)
		return FALSE;

	// TODO: allow mutiple players per device
	data = find_index(path, 5);
	ret = !g_strcmp0(data, BLUEZ_DEFAULT_PLAYER);
	g_free(data);

	return ret;
}

static inline gboolean is_mediatransport1_interface(const char *path)
{
	gchar *data = NULL;
	gboolean ret;

	// Don't trigger on NowPlaying, Item, etc paths
	if (split_length(path) != 6)
		return FALSE;

	data = find_index(path, 5);
	ret = g_str_has_prefix(data, "fd");
	g_free(data);

	return ret;
}

struct bluetooth_state *bluetooth_get_userdata(afb_req_t request);

struct call_work *call_work_create_unlocked(struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		const char *method, const char *bluez_method,
		GError **error);

void call_work_destroy_unlocked(struct call_work *cw);

void call_work_lock(struct bluetooth_state *ns);

void call_work_unlock(struct bluetooth_state *ns);

struct call_work *call_work_lookup_unlocked(
		struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		const char *method);

const struct property_info *bluez_get_property_info(
		const char *access_type, GError **error);

gboolean bluez_property_dbus2json(const char *access_type,
		json_object *jprop, const gchar *key, GVariant *var,
		gboolean *is_config,
		GError **error);

GVariant *bluez_call(struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		const char *method, GVariant *params, GError **error);

json_object *bluez_get_properties(struct bluetooth_state *ns,
		const char *access_type, const char *path,
		GError **error);

json_object *bluez_get_property(struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		gboolean is_json_name, const char *name, GError **error);

gboolean bluez_set_property(struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		gboolean is_json_name, const char *name, json_object *jval,
		GError **error);

gboolean bluetooth_autoconnect(gpointer data);

/* convenience access methods */
static inline gboolean device_property_dbus2json(json_object *jprop,
		const gchar *key, GVariant *var, gboolean *is_config,
		GError **error)
{
	return bluez_property_dbus2json(BLUEZ_AT_DEVICE,
			jprop, key, var, is_config, error);
}

static inline gboolean agent_property_dbus2json(json_object *jprop,
		const gchar *key, GVariant *var, gboolean *is_config,
		GError **error)
{
	return bluez_property_dbus2json(BLUEZ_AT_AGENT,
			jprop, key, var, is_config, error);
}

static inline gboolean mediaplayer_property_dbus2json(json_object *jprop,
		const gchar *key, GVariant *var, gboolean *is_config,
		GError **error)
{
	return bluez_property_dbus2json(BLUEZ_AT_MEDIAPLAYER,
			jprop, key, var, is_config, error);
}

static inline gboolean mediatransport_property_dbus2json(json_object *jprop,
		const gchar *key, GVariant *var, gboolean *is_config,
		GError **error)
{
	return bluez_property_dbus2json(BLUEZ_AT_MEDIATRANSPORT,
			jprop, key, var, is_config, error);
}

static inline GVariant *device_call(struct bluetooth_state *ns,
		const char *device, const char *method,
		GVariant *params, GError **error)
{
	return bluez_call(ns, BLUEZ_AT_DEVICE, device,
			method, params, error);
}

static inline GVariant *adapter_call(struct bluetooth_state *ns,
		const char *adapter, const char *method,
		GVariant *params, GError **error)
{
	return bluez_call(ns, BLUEZ_AT_ADAPTER, adapter,
			method, params, error);
}

static inline GVariant *agentmanager_call(struct bluetooth_state *ns,
		const char *method, GVariant *params, GError **error)
{
	return bluez_call(ns, BLUEZ_AT_AGENTMANAGER, NULL,
			method, params, error);
}

static inline GVariant *mediaplayer_call(struct bluetooth_state *ns,
		const char *player, const char *method,
		GVariant *params, GError **error)
{
	return bluez_call(ns, BLUEZ_AT_MEDIAPLAYER, player,
			method, params, error);
}

static inline gboolean adapter_set_property(struct bluetooth_state *ns,
		const char *adapter, gboolean is_json_name, const char *name,
		json_object *jval, GError **error)
{
	return bluez_set_property(ns, BLUEZ_AT_ADAPTER, adapter,
				    is_json_name, name, jval, error);
}

static inline json_object *adapter_get_property(struct bluetooth_state *ns,
		gboolean is_json_name, const char *name, GError **error)
{
	return bluez_get_property(ns, BLUEZ_AT_ADAPTER, NULL,
			is_json_name, name, error);
}

static inline json_object *adapter_properties(struct bluetooth_state *ns,
		GError **error, const gchar *adapter)
{
	return bluez_get_properties(ns,
			BLUEZ_AT_ADAPTER, adapter, error);
}

static inline json_object *mediaplayer_properties(struct bluetooth_state *ns,
		GError **error, const gchar *player)
{
	return bluez_get_properties(ns,
			BLUEZ_AT_MEDIAPLAYER, player, error);
}

static inline json_object *mediatransport_properties(struct bluetooth_state *ns,
		GError **error, const gchar *player)
{
	return bluez_get_properties(ns,
			BLUEZ_AT_MEDIATRANSPORT, player, error);
}

static inline json_object *object_properties(struct bluetooth_state *ns,
		GError **error)
{
	return bluez_get_properties(ns,
			BLUEZ_AT_OBJECT, BLUEZ_OBJECT_PATH, error);
}

struct bluez_pending_work {
	struct bluetooth_state *ns;
	void *user_data;
	GCancellable *cancel;
	void (*callback)(void *user_data, GVariant *result, GError **error);
};

void bluez_cancel_call(struct bluetooth_state *ns,
		struct bluez_pending_work *cpw);

struct bluez_pending_work *
bluez_call_async(struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		const char *method, GVariant *params, GError **error,
		void (*callback)(void *user_data, GVariant *result, GError **error),
		void *user_data);

void bluez_decode_call_error(struct bluetooth_state *ns,
		const char *access_type, const char *type_arg,
		const char *method,
		GError **error);



#endif /* BLUETOOTH_API_H */