Changeset edb5f837 in mainline for uspace/drv/uhci-hcd/utils/device_keeper.c

Timestamp:

2011-03-06T17:38:37Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

3e37964

Parents:

40a5d40

Message:

Add toggle tracking

File:

• uspace/drv/uhci-hcd/utils/device_keeper.c (modified) (3 diffs)

uspace/drv/uhci-hcd/utils/device_keeper.c

@@ -49 +49 @@
                 instance->devices[i].occupied = false;
                 instance->devices[i].handle = 0;
+                instance->devices[i].toggle_status = 0;
         }
 }
@@ -75 +76 @@
 }
 /*----------------------------------------------------------------------------*/
+int device_keeper_get_toggle(device_keeper_t *instance, usb_target_t target)
+{
+        assert(instance);
+        int ret;
+        fibril_mutex_lock(&instance->guard);
+        if (target.endpoint > 15 || target.endpoint < 0
+            || target.address >= USB_ADDRESS_COUNT || target.address < 0
+            || !instance->devices[target.address].occupied) {
+                ret = EINVAL;
+        } else {
+                ret = (instance->devices[target.address].toggle_status >> target.endpoint) & 1;
+        }
+        fibril_mutex_unlock(&instance->guard);
+        return ret;
+}
+/*----------------------------------------------------------------------------*/
+int device_keeper_set_toggle(
+    device_keeper_t *instance, usb_target_t target, bool toggle)
+{
+        assert(instance);
+        int ret;
+        fibril_mutex_lock(&instance->guard);
+        if (target.endpoint > 15 || target.endpoint < 0
+            || target.address >= USB_ADDRESS_COUNT || target.address < 0
+            || !instance->devices[target.address].occupied) {
+                ret = EINVAL;
+        } else {
+                if (toggle) {
+                        instance->devices[target.address].toggle_status |= (1 << target.endpoint);
+                } else {
+                        instance->devices[target.address].toggle_status &= ~(1 << target.endpoint);
+                }
+                ret = EOK;
+        }
+        fibril_mutex_unlock(&instance->guard);
+        return ret;
+}
+/*----------------------------------------------------------------------------*/
 usb_address_t device_keeper_request(
     device_keeper_t *instance, usb_speed_t speed)
@@ -96 +135 @@
         instance->devices[new_address].occupied = true;
         instance->devices[new_address].speed = speed;
+        instance->devices[new_address].toggle_status = 0;
         instance->last_address = new_address;
         fibril_mutex_unlock(&instance->guard);