1 /*
2 * Copyright (c) 2024 Croxel, Inc.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/bluetooth/bluetooth.h>
8 #include <zephyr/bluetooth/gatt.h>
9 #include <zephyr/bluetooth/services/nus.h>
10 #include "nus_internal.h"
11
nus_bt_chr_write(struct bt_conn * conn,const struct bt_gatt_attr * attr,const void * buf,uint16_t len,uint16_t offset,uint8_t flags)12 ssize_t nus_bt_chr_write(struct bt_conn *conn, const struct bt_gatt_attr *attr,
13 const void *buf, uint16_t len, uint16_t offset, uint8_t flags)
14 {
15 struct bt_nus_cb *listener = NULL;
16 struct bt_nus_inst *instance = NULL;
17
18 instance = bt_nus_inst_get_from_attr(attr);
19 __ASSERT_NO_MSG(instance);
20
21 SYS_SLIST_FOR_EACH_CONTAINER(instance->cbs, listener, _node) {
22 if (listener->received) {
23 listener->received(conn, buf, len, listener->ctx);
24 }
25 }
26
27 return len;
28 }
29
nus_ccc_cfg_changed(const struct bt_gatt_attr * attr,uint16_t value)30 void nus_ccc_cfg_changed(const struct bt_gatt_attr *attr, uint16_t value)
31 {
32 struct bt_nus_cb *listener = NULL;
33 struct bt_nus_inst *instance = NULL;
34
35 instance = bt_nus_inst_get_from_attr(attr);
36 __ASSERT_NO_MSG(instance);
37
38 SYS_SLIST_FOR_EACH_CONTAINER(instance->cbs, listener, _node) {
39 if (listener->notif_enabled) {
40 listener->notif_enabled((value == 1), listener->ctx);
41 }
42 }
43 }
44
bt_nus_inst_cb_register(struct bt_nus_inst * instance,struct bt_nus_cb * cb,void * ctx)45 int bt_nus_inst_cb_register(struct bt_nus_inst *instance, struct bt_nus_cb *cb, void *ctx)
46 {
47 if (!cb) {
48 return -EINVAL;
49 }
50
51 if (!instance) {
52 if (IS_ENABLED(CONFIG_BT_ZEPHYR_NUS_DEFAULT_INSTANCE)) {
53 instance = bt_nus_inst_default();
54 } else {
55 return -ENOTSUP;
56 }
57 }
58
59 cb->ctx = ctx;
60 sys_slist_append(instance->cbs, &cb->_node);
61
62 return 0;
63 }
64
bt_nus_inst_send(struct bt_conn * conn,struct bt_nus_inst * instance,const void * data,uint16_t len)65 int bt_nus_inst_send(struct bt_conn *conn,
66 struct bt_nus_inst *instance,
67 const void *data,
68 uint16_t len)
69 {
70 if (!data || !len) {
71 return -EINVAL;
72 }
73
74 if (!instance) {
75 if (IS_ENABLED(CONFIG_BT_ZEPHYR_NUS_DEFAULT_INSTANCE)) {
76 instance = bt_nus_inst_default();
77 } else {
78 return -ENOTSUP;
79 }
80 }
81
82 return bt_gatt_notify(conn, &instance->svc->attrs[1], data, len);
83 }
84
