1 /*
2 * Copyright (c) 2020 Nordic Semiconductor ASA
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <stdbool.h>
8 #include <stdint.h>
9
10 #include <zephyr/bluetooth/buf.h>
11 #include <zephyr/bluetooth/hci_types.h>
12 #include <zephyr/drivers/bluetooth.h>
13 #include <zephyr/kernel.h>
14 #include <zephyr/net_buf.h>
15 #include <zephyr/sys/byteorder.h>
16
17 #include "common/assert.h"
18
bt_hci_evt_create(uint8_t evt,uint8_t len)19 struct net_buf *bt_hci_evt_create(uint8_t evt, uint8_t len)
20 {
21 struct bt_hci_evt_hdr *hdr;
22 struct net_buf *buf;
23
24 buf = bt_buf_get_evt(evt, false, K_FOREVER);
25
26 BT_ASSERT(buf);
27
28 hdr = net_buf_add(buf, sizeof(*hdr));
29 hdr->evt = evt;
30 hdr->len = len;
31
32 return buf;
33 }
34
bt_hci_cmd_complete_create(uint16_t op,uint8_t plen)35 struct net_buf *bt_hci_cmd_complete_create(uint16_t op, uint8_t plen)
36 {
37 struct net_buf *buf;
38 struct bt_hci_evt_cmd_complete *cc;
39
40 buf = bt_hci_evt_create(BT_HCI_EVT_CMD_COMPLETE, sizeof(*cc) + plen);
41
42 cc = net_buf_add(buf, sizeof(*cc));
43
44 /* The Num_HCI_Command_Packets parameter allows the Controller to
45 * indicate the number of HCI command packets the Host can send to the
46 * Controller. If the Controller requires the Host to stop sending
47 * commands, Num_HCI_Command_Packets will be set to zero.
48 *
49 * NOTE: Zephyr Controller (and may be other Controllers) do not support
50 * higher Number of HCI Command packets than 1.
51 */
52 cc->ncmd = 1U;
53
54 cc->opcode = sys_cpu_to_le16(op);
55
56 return buf;
57 }
58
bt_hci_cmd_status_create(uint16_t op,uint8_t status)59 struct net_buf *bt_hci_cmd_status_create(uint16_t op, uint8_t status)
60 {
61 struct net_buf *buf;
62 struct bt_hci_evt_cmd_status *cs;
63
64 buf = bt_hci_evt_create(BT_HCI_EVT_CMD_STATUS, sizeof(*cs));
65
66 cs = net_buf_add(buf, sizeof(*cs));
67 cs->status = status;
68
69 /* The Num_HCI_Command_Packets parameter allows the Controller to
70 * indicate the number of HCI command packets the Host can send to the
71 * Controller. If the Controller requires the Host to stop sending
72 * commands, Num_HCI_Command_Packets will be set to zero.
73 *
74 * NOTE: Zephyr Controller (and may be other Controllers) do not support
75 * higher Number of HCI Command packets than 1.
76 */
77 cs->ncmd = 1U;
78
79 cs->opcode = sys_cpu_to_le16(op);
80
81 return buf;
82 }
83