aboutsummaryrefslogtreecommitdiffstats
path: root/src/nfc-binding.c
blob: 56aa211a772f6a922e3736e411ce1da87cb222ce (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
#include "nfc-binding.h"

#if USE_LIBNFC == 1
#include "libnfc_reader.h"
#endif

struct afb_event on_nfc_target_add_event;
struct afb_event on_nfc_target_remove_event;

/// @brief Binding's initialization.
/// @return Exit code, zero on success, non-zero otherwise.
int init()
{
	on_nfc_target_add_event = afb_daemon_make_event("on-nfc-target-add");
	on_nfc_target_remove_event = afb_daemon_make_event("on-nfc-target-remove");
	if (!afb_event_is_valid(on_nfc_target_add_event) || !afb_event_is_valid(on_nfc_target_remove_event))
	{
		AFB_ERROR("Failed to create a valid event!");
		return 1;
	}
	
#if USE_LIBNFC == 1
	if (libnfc_init())
	{
		AFB_ERROR("Failed start libnfc reader!");
		return 2;
	}
#endif
	
	return 0;
}

/// @brief Get a list of devices.
/// @param[in] req The query.
void verb_subscribe(struct afb_req req)
{	
	if (!afb_req_subscribe(req, on_nfc_target_remove_event))
	{
		if (!afb_req_subscribe(req, on_nfc_target_add_event))
		{
			afb_req_success(req, NULL, "Subscription success!");
			return;
		}
		else afb_req_unsubscribe(req, on_nfc_target_remove_event);
	}
	
	afb_req_fail(req, NULL, "Subscription failure!");
}

/// @brief Get a list of devices.
/// @param[in] req The query.
void verb_unsubscribe(struct afb_req req)
{
	if (!afb_req_unsubscribe(req, on_nfc_target_add_event))
	{
		if (!afb_req_unsubscribe(req, on_nfc_target_remove_event))
		{
			afb_req_success(req, NULL, "Unsubscription success!");
			return;
		}
	}
	
	afb_req_fail(req, NULL, "Unsubscription failure!");
}

/// @brief Get a list of devices.
/// @param[in] req The query.
void verb_list_devices(struct afb_req req)
{
	struct json_object* result;
	
	result = json_object_new_array();

#if USE_LIBNFC == 1
	if (libnfc_list_devices(result))
	{
		afb_req_fail(req, "Failed to get devices list from libnfc!", NULL);
		return;
	}
#endif
	
	afb_req_success(req, result, NULL);
}

/// @brief Get a list of devices capabilities.
/// @param[in] req The query.
void verb_list_devices_capabilities(struct afb_req req)
{
	struct json_object* result;
	struct json_object* arg;
	
	arg = afb_req_json(req);
	
	result = json_object_new_array();

#if USE_LIBNFC == 1
	if (libnfc_list_devices_capabilities(result, arg))
	{
		afb_req_fail(req, "Failed to get devices list from libnfc!", NULL);
		return;
	}
#endif
	
	afb_req_success(req, result, NULL);
}

/// @brief Start polling.
/// @param[in] req The query.
void verb_start_polling(struct afb_req req)
{
	struct json_object* result;
	struct json_object* arg;
	
	arg = afb_req_json(req);
	
	result = json_object_new_array();

#if USE_LIBNFC == 1
	if (libnfc_start_polling(result, arg))
	{
		afb_req_fail(req, "Failed to get devices list from libnfc!", NULL);
		return;
	}
#endif
	
	afb_req_success(req, result, NULL);
}

void verb_stop_polling(struct afb_req req)
{
	afb_req_fail(req, "Not implemented yet!", NULL);
}