Changeset 4fd3faf in mainline for uspace/lib/usb

Timestamp:

2011-04-08T11:58:18Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ffc63b0

Parents:

cd1cec3b

Message:

Use per endpoint communication mutex

Location:

uspace/lib/usb

Files:

• include/usb/host/endpoint.h (modified) (1 diff)
• src/host/batch.c (modified) (2 diffs)
• src/host/endpoint.c (modified) (2 diffs)

uspace/lib/usb/include/usb/host/endpoint.h

@@ -53 +53 @@
         fibril_mutex_t guard;
         fibril_condvar_t avail;
-        bool active;
+        volatile bool active;
         link_t same_device_eps;
 } endpoint_t;

uspace/lib/usb/src/host/batch.c

@@ -79 +79 @@
         instance->error = EOK;
         instance->ep = ep;
+        endpoint_use(instance->ep);
 }
 /*----------------------------------------------------------------------------*/
@@ -89 +90 @@
 {
         assert(instance);
+        assert(instance->ep);
+        endpoint_release(instance->ep);
         instance->next_step(instance);
 }

uspace/lib/usb/src/host/endpoint.c

@@ -60 +60 @@
 {
         assert(instance);
+        assert(!instance->active);
         list_remove(&instance->same_device_eps);
         free(instance);
@@ -79 +80 @@
         fibril_mutex_lock(&instance->guard);
         instance->active = false;
+        fibril_mutex_unlock(&instance->guard);
         fibril_condvar_signal(&instance->avail);
-        fibril_mutex_unlock(&instance->guard);
 }
 /*----------------------------------------------------------------------------*/