Bluetooth: Add Bluetooth socket voice option
This patch extends the current Bluetooth socket options with BT_VOICE.
This is intended to choose voice data type at runtime. It only applies
to SCO sockets. Incoming connections shall be setup during deferred
setup. Outgoing connections shall be setup before connect(). The desired
setting is stored in the SCO socket info. This patch declares needed
members, modifies getsockopt() and setsockopt().
Signed-off-by: Frédéric Dalleau <frederic.dalleau@linux.intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index acdca68..678747e 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -416,6 +416,8 @@
sk->sk_protocol = proto;
sk->sk_state = BT_OPEN;
+ sco_pi(sk)->setting = BT_VOICE_CVSD_16BIT;
+
setup_timer(&sk->sk_timer, sco_sock_timeout, (unsigned long)sk);
bt_sock_link(&sco_sk_list, sk);
@@ -709,7 +711,8 @@
static int sco_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen)
{
struct sock *sk = sock->sk;
- int err = 0;
+ int len, err = 0;
+ struct bt_voice voice;
u32 opt;
BT_DBG("sk %p", sk);
@@ -735,6 +738,31 @@
clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
break;
+ case BT_VOICE:
+ if (sk->sk_state != BT_OPEN && sk->sk_state != BT_BOUND &&
+ sk->sk_state != BT_CONNECT2) {
+ err = -EINVAL;
+ break;
+ }
+
+ voice.setting = sco_pi(sk)->setting;
+
+ len = min_t(unsigned int, sizeof(voice), optlen);
+ if (copy_from_user((char *) &voice, optval, len)) {
+ err = -EFAULT;
+ break;
+ }
+
+ /* Explicitly check for these values */
+ if (voice.setting != BT_VOICE_TRANSPARENT &&
+ voice.setting != BT_VOICE_CVSD_16BIT) {
+ err = -EINVAL;
+ break;
+ }
+
+ sco_pi(sk)->setting = voice.setting;
+ break;
+
default:
err = -ENOPROTOOPT;
break;
@@ -808,6 +836,7 @@
{
struct sock *sk = sock->sk;
int len, err = 0;
+ struct bt_voice voice;
BT_DBG("sk %p", sk);
@@ -833,6 +862,15 @@
break;
+ case BT_VOICE:
+ voice.setting = sco_pi(sk)->setting;
+
+ len = min_t(unsigned int, len, sizeof(voice));
+ if (copy_to_user(optval, (char *)&voice, len))
+ err = -EFAULT;
+
+ break;
+
default:
err = -ENOPROTOOPT;
break;