1 /*
2 * Copyright (c) 2020 Nordic Semiconductor ASA
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <stdint.h>
8 #include <zephyr/sys/byteorder.h>
9 #include <zephyr/drivers/bluetooth.h>
10 #include "common/assert.h"
11
bt_hci_evt_create(uint8_t evt,uint8_t len)12 struct net_buf *bt_hci_evt_create(uint8_t evt, uint8_t len)
13 {
14 struct bt_hci_evt_hdr *hdr;
15 struct net_buf *buf;
16
17 buf = bt_buf_get_evt(evt, false, K_FOREVER);
18
19 BT_ASSERT(buf);
20
21 hdr = net_buf_add(buf, sizeof(*hdr));
22 hdr->evt = evt;
23 hdr->len = len;
24
25 return buf;
26 }
27
bt_hci_cmd_complete_create(uint16_t op,uint8_t plen)28 struct net_buf *bt_hci_cmd_complete_create(uint16_t op, uint8_t plen)
29 {
30 struct net_buf *buf;
31 struct bt_hci_evt_cmd_complete *cc;
32
33 buf = bt_hci_evt_create(BT_HCI_EVT_CMD_COMPLETE, sizeof(*cc) + plen);
34
35 cc = net_buf_add(buf, sizeof(*cc));
36
37 /* The Num_HCI_Command_Packets parameter allows the Controller to
38 * indicate the number of HCI command packets the Host can send to the
39 * Controller. If the Controller requires the Host to stop sending
40 * commands, Num_HCI_Command_Packets will be set to zero.
41 *
42 * NOTE: Zephyr Controller (and may be other Controllers) do not support
43 * higher Number of HCI Command packets than 1.
44 */
45 cc->ncmd = 1U;
46
47 cc->opcode = sys_cpu_to_le16(op);
48
49 return buf;
50 }
51
bt_hci_cmd_status_create(uint16_t op,uint8_t status)52 struct net_buf *bt_hci_cmd_status_create(uint16_t op, uint8_t status)
53 {
54 struct net_buf *buf;
55 struct bt_hci_evt_cmd_status *cs;
56
57 buf = bt_hci_evt_create(BT_HCI_EVT_CMD_STATUS, sizeof(*cs));
58
59 cs = net_buf_add(buf, sizeof(*cs));
60 cs->status = status;
61
62 /* The Num_HCI_Command_Packets parameter allows the Controller to
63 * indicate the number of HCI command packets the Host can send to the
64 * Controller. If the Controller requires the Host to stop sending
65 * commands, Num_HCI_Command_Packets will be set to zero.
66 *
67 * NOTE: Zephyr Controller (and may be other Controllers) do not support
68 * higher Number of HCI Command packets than 1.
69 */
70 cs->ncmd = 1U;
71
72 cs->opcode = sys_cpu_to_le16(op);
73
74 return buf;
75 }
76
