mirror of
https://github.com/torvalds/linux
synced 2024-07-22 19:21:07 +00:00
eca0ae4aea
This adds initial support for BIS/BIG which includes:
== Broadcaster role: Setup a periodic advertising and create a BIG ==
> tools/isotest -s 00:00:00:00:00:00
isotest[63]: Connected [00:00:00:00:00:00]
isotest[63]: QoS BIG 0x00 BIS 0x00 Packing 0x00 Framing 0x00]
isotest[63]: Output QoS [Interval 10000 us Latency 10 ms SDU 40 PHY 0x02
RTN 2]
isotest[63]: Sending ...
isotest[63]: Number of packets: 1
isotest[63]: Socket jitter buffer: 80 buffer
< HCI Command: LE Set Perio.. (0x08|0x003e) plen 7
...
> HCI Event: Command Complete (0x0e) plen 4
LE Set Periodic Advertising Parameters (0x08|0x003e) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Perio.. (0x08|0x003f) plen 7
...
> HCI Event: Command Complete (0x0e) plen 4
LE Set Periodic Advertising Data (0x08|0x003f) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Perio.. (0x08|0x0040) plen 2
...
> HCI Event: Command Complete (0x0e) plen 4
LE Set Periodic Advertising Enable (0x08|0x0040) ncmd 1
Status: Success (0x00)
< HCI Command: LE Create B.. (0x08|0x0068) plen 31
...
> HCI Event: Command Status (0x0f) plen 4
LE Create Broadcast Isochronous Group (0x08|0x0068) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 21
LE Broadcast Isochronous Group Complete (0x1b)
...
== Broadcast Receiver role: Create a PA Sync and BIG Sync ==
> tools/isotest -i hci1 -d 00:AA:01:00:00:00
isotest[66]: Waiting for connection 00:AA:01:00:00:00...
< HCI Command: LE Periodic Advert.. (0x08|0x0044) plen 14
...
> HCI Event: Command Status (0x0f) plen 4
LE Periodic Advertising Create Sync (0x08|0x0044) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Extended Sca.. (0x08|0x0041) plen 8
...
> HCI Event: Command Complete (0x0e) plen 4
LE Set Extended Scan Parameters (0x08|0x0041) ncmd 1
Status: Success (0x00)
< HCI Command: LE Set Extended Sca.. (0x08|0x0042) plen 6
...
> HCI Event: Command Complete (0x0e) plen 4
LE Set Extended Scan Enable (0x08|0x0042) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 29
LE Extended Advertising Report (0x0d)
...
> HCI Event: LE Meta Event (0x3e) plen 16
LE Periodic Advertising Sync Established (0x0e)
...
< HCI Command: LE Broadcast Isoch.. (0x08|0x006b) plen 25
...
> HCI Event: Command Status (0x0f) plen 4
LE Broadcast Isochronous Group Create Sync (0x08|0x006b) ncmd 1
Status: Success (0x00)
> HCI Event: LE Meta Event (0x3e) plen 17
LE Broadcast Isochronous Group Sync Estabilished (0x1d)
...
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
100 lines
2.1 KiB
C
100 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2021 Intel Corporation
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*/
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#include <asm/unaligned.h>
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void eir_create(struct hci_dev *hdev, u8 *data);
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u8 eir_create_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr);
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u8 eir_create_scan_rsp(struct hci_dev *hdev, u8 instance, u8 *ptr);
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u8 eir_create_per_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr);
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u8 eir_append_local_name(struct hci_dev *hdev, u8 *eir, u8 ad_len);
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u8 eir_append_appearance(struct hci_dev *hdev, u8 *ptr, u8 ad_len);
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u8 eir_append_service_data(u8 *eir, u16 eir_len, u16 uuid, u8 *data,
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u8 data_len);
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static inline u16 eir_precalc_len(u8 data_len)
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{
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return sizeof(u8) * 2 + data_len;
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}
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static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
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u8 *data, u8 data_len)
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{
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eir[eir_len++] = sizeof(type) + data_len;
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eir[eir_len++] = type;
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memcpy(&eir[eir_len], data, data_len);
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eir_len += data_len;
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return eir_len;
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}
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static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
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{
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eir[eir_len++] = sizeof(type) + sizeof(data);
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eir[eir_len++] = type;
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put_unaligned_le16(data, &eir[eir_len]);
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eir_len += sizeof(data);
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return eir_len;
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}
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static inline u16 eir_skb_put_data(struct sk_buff *skb, u8 type, u8 *data, u8 data_len)
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{
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u8 *eir;
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u16 eir_len;
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eir_len = eir_precalc_len(data_len);
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eir = skb_put(skb, eir_len);
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WARN_ON(sizeof(type) + data_len > U8_MAX);
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eir[0] = sizeof(type) + data_len;
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eir[1] = type;
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memcpy(&eir[2], data, data_len);
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return eir_len;
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}
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static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type,
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size_t *data_len)
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{
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size_t parsed = 0;
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if (eir_len < 2)
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return NULL;
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while (parsed < eir_len - 1) {
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u8 field_len = eir[0];
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if (field_len == 0)
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break;
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parsed += field_len + 1;
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if (parsed > eir_len)
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break;
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if (eir[1] != type) {
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eir += field_len + 1;
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continue;
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}
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/* Zero length data */
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if (field_len == 1)
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return NULL;
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if (data_len)
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*data_len = field_len - 1;
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return &eir[2];
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}
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return NULL;
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}
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void *eir_get_service_data(u8 *eir, size_t eir_len, u16 uuid, size_t *len);
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