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| author | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2023-06-20 15:41:11 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-06-29 10:52:18 -0700 |
| commit | 2be22f1941d5f661aa8043261d1bae5b6696c749 (patch) | |
| tree | 10625ab75cbfea6fd5736f0a5bc4d79fbcc4abe3 /net | |
| parent | 5b6d345d1b65d67624349e5de22227492c637576 (diff) | |
| download | linux-2be22f1941d5f661aa8043261d1bae5b6696c749.tar.gz linux-2be22f1941d5f661aa8043261d1bae5b6696c749.tar.bz2 linux-2be22f1941d5f661aa8043261d1bae5b6696c749.zip | |
Bluetooth: hci_event: Fix parsing of CIS Established Event
The ISO Interval on CIS Established Event uses 1.25 ms slots:
BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E
page 2304:
Time = N * 1.25 ms
In addition to that this always update the QoS settings based on CIS
Established Event.
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hci_event.c | 49 |
1 files changed, 34 insertions, 15 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 2383153d5345..95816a938cea 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -6786,6 +6786,7 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data, { struct hci_evt_le_cis_established *ev = data; struct hci_conn *conn; + struct bt_iso_qos *qos; u16 handle = __le16_to_cpu(ev->handle); bt_dev_dbg(hdev, "status 0x%2.2x", ev->status); @@ -6807,21 +6808,39 @@ static void hci_le_cis_estabilished_evt(struct hci_dev *hdev, void *data, goto unlock; } - if (conn->role == HCI_ROLE_SLAVE) { - __le32 interval; - - memset(&interval, 0, sizeof(interval)); - - memcpy(&interval, ev->c_latency, sizeof(ev->c_latency)); - conn->iso_qos.ucast.in.interval = le32_to_cpu(interval); - memcpy(&interval, ev->p_latency, sizeof(ev->p_latency)); - conn->iso_qos.ucast.out.interval = le32_to_cpu(interval); - conn->iso_qos.ucast.in.latency = le16_to_cpu(ev->interval); - conn->iso_qos.ucast.out.latency = le16_to_cpu(ev->interval); - conn->iso_qos.ucast.in.sdu = le16_to_cpu(ev->c_mtu); - conn->iso_qos.ucast.out.sdu = le16_to_cpu(ev->p_mtu); - conn->iso_qos.ucast.in.phy = ev->c_phy; - conn->iso_qos.ucast.out.phy = ev->p_phy; + qos = &conn->iso_qos; + + /* Convert ISO Interval (1.25 ms slots) to SDU Interval (us) */ + qos->ucast.in.interval = le16_to_cpu(ev->interval) * 1250; + qos->ucast.out.interval = qos->ucast.in.interval; + + switch (conn->role) { + case HCI_ROLE_SLAVE: + /* Convert Transport Latency (us) to Latency (msec) */ + qos->ucast.in.latency = + DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency), + 1000); + qos->ucast.out.latency = + DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency), + 1000); + qos->ucast.in.sdu = le16_to_cpu(ev->c_mtu); + qos->ucast.out.sdu = le16_to_cpu(ev->p_mtu); + qos->ucast.in.phy = ev->c_phy; + qos->ucast.out.phy = ev->p_phy; + break; + case HCI_ROLE_MASTER: + /* Convert Transport Latency (us) to Latency (msec) */ + qos->ucast.out.latency = + DIV_ROUND_CLOSEST(get_unaligned_le24(ev->c_latency), + 1000); + qos->ucast.in.latency = + DIV_ROUND_CLOSEST(get_unaligned_le24(ev->p_latency), + 1000); + qos->ucast.out.sdu = le16_to_cpu(ev->c_mtu); + qos->ucast.in.sdu = le16_to_cpu(ev->p_mtu); + qos->ucast.out.phy = ev->c_phy; + qos->ucast.in.phy = ev->p_phy; + break; } if (!ev->status) { |