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Hi Peter,
On Fri, Aug 12, 2011 at 3:56 PM, Peter Hurley <[email protected]> wrote:
> AVDTP_CONNECT_TIMEOUT controls the delay between HSP/HFP
> connection establishment and AVDTP signal channel establishment.
> The original value of 1 sec. is too short to avoid racing for AVDTP
> connection establishment (eg., if the device continues to configure
> the HFP service level connection with add'l AT cmds).
>
> Some devices have broken AVDTP implementations that just cannot
> handle the race conditions that arise if both devices are attempting
> stream establishment at the same time. However, these conditions arise
> only when the remote device is the ACL initiator (and in practice, the
> RFCOMM initiator as well). ?This fix bumps out the timeout value only
> when the headset has initiated the link.
> ---
> ?audio/device.c ?| ? ?9 ++++++++-
> ?audio/headset.c | ? 16 ++++++++++++++++
> ?audio/headset.h | ? ?3 +++
> ?audio/manager.c | ? ?1 +
> ?4 files changed, 28 insertions(+), 1 deletions(-)
>
> diff --git a/audio/device.c b/audio/device.c
> index 18e873e..0bd1443 100644
> --- a/audio/device.c
> +++ b/audio/device.c
> @@ -61,6 +61,7 @@
>
> ?#define CONTROL_CONNECT_TIMEOUT 2
> ?#define AVDTP_CONNECT_TIMEOUT 1
> +#define AVDTP_CONNECT_TIMEOUT_BOOST 1
> ?#define HEADSET_CONNECT_TIMEOUT 1
>
> ?typedef enum {
> @@ -305,6 +306,7 @@ static gboolean avdtp_connect_timeout(gpointer user_data)
> ?static gboolean device_set_avdtp_timer(struct audio_device *dev)
> ?{
> ? ? ? ?struct dev_priv *priv = dev->priv;
> + ? ? ? guint timeout = AVDTP_CONNECT_TIMEOUT;
>
> ? ? ? ?if (!dev->sink)
> ? ? ? ? ? ? ? ?return FALSE;
> @@ -312,7 +314,12 @@ static gboolean device_set_avdtp_timer(struct audio_device *dev)
> ? ? ? ?if (priv->avdtp_timer)
> ? ? ? ? ? ? ? ?return FALSE;
>
> - ? ? ? priv->avdtp_timer = g_timeout_add_seconds(AVDTP_CONNECT_TIMEOUT,
> + ? ? ? /* if the headset is the HSP/HFP RFCOMM initiator, give the headset
> + ? ? ? ? ?time to initiate AVDTP signalling (and avoid further racing) */
> + ? ? ? if (dev->headset && get_rfcomm_initiator(dev))
> + ? ? ? ? ? ? ? timeout += AVDTP_CONNECT_TIMEOUT_BOOST;
> +
> + ? ? ? priv->avdtp_timer = g_timeout_add_seconds(timeout,
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?avdtp_connect_timeout,
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?dev);
>
> diff --git a/audio/headset.c b/audio/headset.c
> index 8e63afc..66a28f2 100644
> --- a/audio/headset.c
> +++ b/audio/headset.c
> @@ -167,6 +167,7 @@ struct headset {
>
> ? ? ? ?gboolean hfp_active;
> ? ? ? ?gboolean search_hfp;
> + ? ? ? gboolean rfcomm_initiator;
>
> ? ? ? ?headset_state_t state;
> ? ? ? ?struct pending_connect *pending;
> @@ -1633,6 +1634,7 @@ static int rfcomm_connect(struct audio_device *dev, headset_stream_cb_t cb,
> ? ? ? ?}
>
> ? ? ? ?hs->hfp_active = hs->hfp_handle != 0 ? TRUE : FALSE;
> + ? ? ? hs->rfcomm_initiator = FALSE;
>
> ? ? ? ?headset_set_state(dev, HEADSET_STATE_CONNECTING);
>
> @@ -2442,6 +2444,20 @@ void set_hfp_active(struct audio_device *dev, gboolean active)
> ? ? ? ?hs->hfp_active = active;
> ?}
>
> +gboolean get_rfcomm_initiator(struct audio_device *dev)
> +{
> + ? ? ? struct headset *hs = dev->headset;
> +
> + ? ? ? return hs->rfcomm_initiator;
> +}
> +
> +void set_rfcomm_initiator(struct audio_device *dev, gboolean initiator)
> +{
> + ? ? ? struct headset *hs = dev->headset;
> +
> + ? ? ? hs->rfcomm_initiator = initiator;
> +}
> +
I would suggest you to follow the name convention e.g.
headset_get_rfcomm_initiator...
> ?GIOChannel *headset_get_rfcomm(struct audio_device *dev)
> ?{
> ? ? ? ?struct headset *hs = dev->headset;
> diff --git a/audio/headset.h b/audio/headset.h
> index 7ce88c8..f275e03 100644
> --- a/audio/headset.h
> +++ b/audio/headset.h
> @@ -82,6 +82,9 @@ gboolean headset_cancel_stream(struct audio_device *dev, unsigned int id);
> ?gboolean get_hfp_active(struct audio_device *dev);
> ?void set_hfp_active(struct audio_device *dev, gboolean active);
>
> +gboolean get_rfcomm_initiator(struct audio_device *dev);
> +void set_rfcomm_initiator(struct audio_device *dev, gboolean initiator);
> +
Here too.
--
Luiz Augusto von Dentz