---
audio/gateway.c | 38 ++++++++++++++++++++++++++++++++++++++
audio/gateway.h | 8 ++++++++
2 files changed, 46 insertions(+), 0 deletions(-)
diff --git a/audio/gateway.c b/audio/gateway.c
index d41bbc3..e1db84b 100644
--- a/audio/gateway.c
+++ b/audio/gateway.c
@@ -70,6 +70,7 @@ struct gateway {
struct hf_agent *agent;
DBusMessage *msg;
int version;
+ gateway_lock_t lock;
};
struct gateway_state_callback {
@@ -875,3 +876,40 @@ gboolean gateway_remove_state_cb(unsigned int id)
return FALSE;
}
+
+gateway_lock_t gateway_get_lock(struct audio_device *dev)
+{
+ struct gateway *gw = dev->gateway;
+
+ return gw->lock;
+}
+
+gboolean gateway_lock(struct audio_device *dev, gateway_lock_t lock)
+{
+ struct gateway *gw = dev->gateway;
+
+ if (gw->lock & lock)
+ return FALSE;
+
+ gw->lock |= lock;
+
+ return TRUE;
+}
+
+gboolean gateway_unlock(struct audio_device *dev, gateway_lock_t lock)
+{
+ struct gateway *gw = dev->gateway;
+
+ if (!(gw->lock & lock))
+ return FALSE;
+
+ gw->lock &= ~lock;
+
+ if (gw->lock)
+ return TRUE;
+
+ if (gw->state == GATEWAY_STATE_PLAYING)
+ gateway_suspend_stream(dev);
+
+ return TRUE;
+}
diff --git a/audio/gateway.h b/audio/gateway.h
index 32b5d6d..2dca32a 100644
--- a/audio/gateway.h
+++ b/audio/gateway.h
@@ -33,6 +33,11 @@ typedef enum {
GATEWAY_STATE_PLAYING,
} gateway_state_t;
+typedef enum {
+ GATEWAY_LOCK_READ = 1,
+ GATEWAY_LOCK_WRITE = 1 << 1,
+} gateway_lock_t;
+
typedef void (*gateway_state_cb) (struct audio_device *dev,
gateway_state_t old_state,
gateway_state_t new_state,
@@ -56,3 +61,6 @@ int gateway_get_sco_fd(struct audio_device *dev);
void gateway_suspend_stream(struct audio_device *dev);
unsigned int gateway_add_state_cb(gateway_state_cb cb, void *user_data);
gboolean gateway_remove_state_cb(unsigned int id);
+gateway_lock_t gateway_get_lock(struct audio_device *dev);
+gboolean gateway_lock(struct audio_device *dev, gateway_lock_t lock);
+gboolean gateway_unlock(struct audio_device *dev, gateway_lock_t lock);
--
1.7.1
--
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