1 /** @file
2 * @brief Bluetooth Volume Control Profile (VCP) Volume Renderer role.
3 *
4 * Copyright (c) 2020 Bose Corporation
5 * Copyright (c) 2020-2022 Nordic Semiconductor ASA
6 * Copyright (c) 2022 Codecoup
7 * Copyright 2023 NXP
8 *
9 * SPDX-License-Identifier: Apache-2.0
10 */
11
12 #include <zephyr/kernel.h>
13 #include <zephyr/sys/printk.h>
14 #include <stdlib.h>
15 #include <stdio.h>
16
17 #include <zephyr/bluetooth/conn.h>
18 #include <zephyr/bluetooth/audio/vcp.h>
19
20 static struct bt_vcp_included vcp_included;
21
vcs_state_cb(int err,uint8_t volume,uint8_t mute)22 static void vcs_state_cb(int err, uint8_t volume, uint8_t mute)
23 {
24 if (err) {
25 printk("VCS state get failed (%d)\n", err);
26 } else {
27 printk("VCS volume %u, mute %u\n", volume, mute);
28 }
29 }
30
vcs_flags_cb(int err,uint8_t flags)31 static void vcs_flags_cb(int err, uint8_t flags)
32 {
33 if (err) {
34 printk("VCS flags get failed (%d)\n", err);
35 } else {
36 printk("VCS flags 0x%02X\n", flags);
37 }
38 }
39
40 static struct bt_vcp_vol_rend_cb vcp_cbs = {
41 .state = vcs_state_cb,
42 .flags = vcs_flags_cb,
43 };
44
vcp_vol_renderer_init(void)45 int vcp_vol_renderer_init(void)
46 {
47 int err;
48 struct bt_vcp_vol_rend_register_param vcp_register_param;
49
50 memset(&vcp_register_param, 0, sizeof(vcp_register_param));
51
52 vcp_register_param.step = 1;
53 vcp_register_param.mute = BT_VCP_STATE_UNMUTED;
54 vcp_register_param.volume = 100;
55 vcp_register_param.cb = &vcp_cbs;
56
57 err = bt_vcp_vol_rend_register(&vcp_register_param);
58 if (err) {
59 return err;
60 }
61
62 err = bt_vcp_vol_rend_included_get(&vcp_included);
63 if (err != 0) {
64 return err;
65 }
66
67 return 0;
68 }
69
