diff options
author | Claudia Draghicescu <claudia.rosu@nxp.com> | 2023-06-30 12:59:28 +0300 |
---|---|---|
committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2023-08-24 22:22:56 +0300 |
commit | 9c0826310bfb784c9bac7d1d9454e304185446c5 (patch) | |
tree | 80233bbd4f8f1bf62c842d866660316a161a4bf0 /net/bluetooth/iso.c | |
parent | 3344d318337d9dca928fd448e966557ec5063f85 (diff) | |
download | linux-9c0826310bfb784c9bac7d1d9454e304185446c5.tar.xz |
Bluetooth: ISO: Add support for periodic adv reports processing
In the case of a Periodic Synchronized Receiver,
the PA report received from a Broadcaster contains the BASE,
which has information about codec and other parameters of a BIG.
This isnformation is stored and the application can retrieve it
using getsockopt(BT_ISO_BASE).
Signed-off-by: Claudia Draghicescu <claudia.rosu@nxp.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'net/bluetooth/iso.c')
-rw-r--r-- | net/bluetooth/iso.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c index 2a2c37789e1f..16da946f5881 100644 --- a/net/bluetooth/iso.c +++ b/net/bluetooth/iso.c @@ -1446,7 +1446,8 @@ static int iso_sock_getsockopt(struct socket *sock, int level, int optname, break; case BT_ISO_BASE: - if (sk->sk_state == BT_CONNECTED) { + if (sk->sk_state == BT_CONNECTED && + !bacmp(&iso_pi(sk)->dst, BDADDR_ANY)) { base_len = iso_pi(sk)->conn->hcon->le_per_adv_data_len; base = iso_pi(sk)->conn->hcon->le_per_adv_data; } else { @@ -1655,6 +1656,9 @@ static void iso_conn_ready(struct iso_conn *conn) bacpy(&iso_pi(sk)->dst, &hcon->dst); iso_pi(sk)->dst_type = hcon->dst_type; + iso_pi(sk)->sync_handle = iso_pi(parent)->sync_handle; + memcpy(iso_pi(sk)->base, iso_pi(parent)->base, iso_pi(parent)->base_len); + iso_pi(sk)->base_len = iso_pi(parent)->base_len; hci_conn_hold(hcon); iso_chan_add(conn, sk, parent); @@ -1692,12 +1696,20 @@ static bool iso_match_sync_handle(struct sock *sk, void *data) return le16_to_cpu(ev->sync_handle) == iso_pi(sk)->sync_handle; } +static bool iso_match_sync_handle_pa_report(struct sock *sk, void *data) +{ + struct hci_ev_le_per_adv_report *ev = data; + + return le16_to_cpu(ev->sync_handle) == iso_pi(sk)->sync_handle; +} + /* ----- ISO interface with lower layer (HCI) ----- */ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) { struct hci_ev_le_pa_sync_established *ev1; struct hci_evt_le_big_info_adv_report *ev2; + struct hci_ev_le_per_adv_report *ev3; struct sock *sk; int lm = 0; @@ -1713,6 +1725,9 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) * 2. HCI_EVT_LE_BIG_INFO_ADV_REPORT: When connect_ind is triggered by a * a BIG Info it attempts to check if there any listening socket with * the same sync_handle and if it does then attempt to create a sync. + * 3. HCI_EV_LE_PER_ADV_REPORT: When a PA report is received, it is stored + * in iso_pi(sk)->base so it can be passed up to user, in the case of a + * broadcast sink. */ ev1 = hci_recv_event_data(hdev, HCI_EV_LE_PA_SYNC_ESTABLISHED); if (ev1) { @@ -1752,6 +1767,17 @@ int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) } } } + } + + ev3 = hci_recv_event_data(hdev, HCI_EV_LE_PER_ADV_REPORT); + if (ev3) { + sk = iso_get_sock_listen(&hdev->bdaddr, bdaddr, + iso_match_sync_handle_pa_report, ev3); + + if (sk) { + memcpy(iso_pi(sk)->base, ev3->data, ev3->length); + iso_pi(sk)->base_len = ev3->length; + } } else { sk = iso_get_sock_listen(&hdev->bdaddr, BDADDR_ANY, NULL, NULL); } |