Changeset 8300c72 in mainline for uspace/srv/devman/driver.c

Timestamp:

2025-03-03T22:58:05Z (14 hours ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master

Children:

77a0119

Parents:

f35749e

Message:

Quiesce devices before proceeding with shutdown.

Only implemented for e1k, uhci and xhci.

File:

• uspace/srv/devman/driver.c (modified) (1 diff)

uspace/srv/devman/driver.c

@@ -741 +741 @@
 }
 
+errno_t driver_dev_quiesce(dev_tree_t *tree, dev_node_t *dev)
+{
+        async_exch_t *exch;
+        errno_t retval;
+        driver_t *drv;
+        devman_handle_t handle;
+
+        assert(dev != NULL);
+
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "driver_dev_quiesce(%p)", dev);
+
+        fibril_rwlock_read_lock(&tree->rwlock);
+        drv = dev->drv;
+        handle = dev->handle;
+        fibril_rwlock_read_unlock(&tree->rwlock);
+
+        exch = async_exchange_begin(drv->sess);
+        retval = async_req_1_0(exch, DRIVER_DEV_QUIESCE, handle);
+        async_exchange_end(exch);
+
+        return retval;
+}
+
 errno_t driver_dev_gone(dev_tree_t *tree, dev_node_t *dev)
 {