mirror of
https://gitlab.freedesktop.org/pipewire/pipewire
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68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* Spa HSP/HFP native backend HCI support */
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/* SPDX-FileCopyrightText: Copyright © 2022 Pauli Virtanen */
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/* SPDX-License-Identifier: MIT */
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#include <errno.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <sys/uio.h>
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#include <sys/socket.h>
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#include "defs.h"
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#ifndef HAVE_BLUEZ_5_HCI
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int spa_bt_adapter_has_msbc(struct spa_bt_adapter *adapter)
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{
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if (adapter->msbc_probed)
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return adapter->has_msbc;
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return -EOPNOTSUPP;
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}
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#else
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#include <bluetooth/bluetooth.h>
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#include <bluetooth/hci.h>
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#include <bluetooth/hci_lib.h>
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#include <spa/utils/cleanup.h>
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int spa_bt_adapter_has_msbc(struct spa_bt_adapter *adapter)
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{
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int hci_id;
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spa_autoclose int sock = -1;
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uint8_t features[8], max_page = 0;
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struct sockaddr_hci a;
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const char *str;
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if (adapter->msbc_probed)
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return adapter->has_msbc;
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str = strrchr(adapter->path, '/'); /* hciXX */
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if (str == NULL || sscanf(str, "/hci%d", &hci_id) != 1 || hci_id < 0)
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return -ENOENT;
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sock = socket(AF_BLUETOOTH, SOCK_RAW | SOCK_CLOEXEC, BTPROTO_HCI);
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if (sock < 0)
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return -errno;
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memset(&a, 0, sizeof(a));
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a.hci_family = AF_BLUETOOTH;
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a.hci_dev = hci_id;
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if (bind(sock, (struct sockaddr *) &a, sizeof(a)) < 0)
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return -errno;
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if (hci_read_local_ext_features(sock, 0, &max_page, features, 1000) < 0)
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return -errno;
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adapter->msbc_probed = true;
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adapter->has_msbc = ((features[2] & LMP_TRSP_SCO) && (features[3] & LMP_ESCO)) ? 1 : 0;
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return adapter->has_msbc;
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}
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#endif
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