Hi Fred,
> In order to establish a transparent SCO connection, the correct settings must
> be specified in the Setup Synchronous Connection request. For that,
> a setting field is added to ACL connection data to set up the desired
> parameters.
> Remove usage of hdev->voice_setting in CVSD connection.
> Make use of T2 parameters for transparent data.
>
> Signed-off-by: Frédéric Dalleau <frederic.dalleau@xxxxxxxxxxxxxxx>
> ---
> include/net/bluetooth/hci_core.h | 1 +
> net/bluetooth/hci_conn.c | 21 +++++++++++++++++----
> 2 files changed, 18 insertions(+), 4 deletions(-)
>
> diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
> index 69bdb67..61ca2ce 100644
> --- a/include/net/bluetooth/hci_core.h
> +++ b/include/net/bluetooth/hci_core.h
> @@ -320,6 +320,7 @@ struct hci_conn {
> __u32 passkey_notify;
> __u8 passkey_entered;
> __u16 disc_timeout;
> + __u16 setting;
> unsigned long flags;
>
> __u8 remote_cap;
> diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
> index d1d9919..c4d6163 100644
> --- a/net/bluetooth/hci_conn.c
> +++ b/net/bluetooth/hci_conn.c
> @@ -185,13 +185,24 @@ void hci_setup_sync(struct hci_conn *conn, __u16 handle)
> conn->attempt++;
>
> cp.handle = cpu_to_le16(handle);
> - cp.pkt_type = cpu_to_le16(conn->pkt_type);
>
> cp.tx_bandwidth = __constant_cpu_to_le32(0x00001f40);
> cp.rx_bandwidth = __constant_cpu_to_le32(0x00001f40);
> - cp.max_latency = __constant_cpu_to_le16(0xffff);
> - cp.voice_setting = cpu_to_le16(hdev->voice_setting);
> - cp.retrans_effort = 0xff;
> + cp.voice_setting = cpu_to_le16(conn->setting);
> +
> + switch (conn->setting & SCO_AIRMODE_MASK) {
> + case SCO_AIRMODE_TRANSP:
> + cp.pkt_type = __constant_cpu_to_le16(EDR_ESCO_MASK &
> + ~ESCO_2EV3);
> + cp.max_latency = __constant_cpu_to_le16(0x000d);
please do not try to align = here.
> + cp.retrans_effort = 0x02;
> + break;
> + case SCO_AIRMODE_CVSD:
> + cp.pkt_type = cpu_to_le16(conn->pkt_type);
> + cp.max_latency = __constant_cpu_to_le16(0xffff);
And here as well. No need for that.
> + cp.retrans_effort = 0xff;
> + break;
> + }
>
> hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
> }
> @@ -584,6 +595,8 @@ struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst,
>
> hci_conn_hold(sco);
>
> + sco->setting = setting;
> +
> if (acl->state == BT_CONNECTED &&
> (sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
> set_bit(HCI_CONN_POWER_SAVE, &acl->flags);
Regards
Marcel
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