Changeset 8300c72 in mainline for uspace/lib/usbhost

Timestamp:

2025-03-03T22:58:05Z (5 months 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.

Location:

uspace/lib/usbhost

Files:

• include/usb/host/hcd.h (modified) (2 diffs)
• src/hcd.c (modified) (4 diffs)

uspace/lib/usbhost/include/usb/host/hcd.h

@@ -1 +1 @@
 /*
+ * Copyright (c) 2025 Jiri Svoboda
  * Copyright (c) 2011 Jan Vesely
  * Copyright (c) 2018 Ondrej Hlavaty
@@ -101 +102 @@
         /** HC is gone. */
         int (*hc_gone)(hc_device_t *);
+
+        /** Quiesce HC. */
+        int (*hc_quiesce)(hc_device_t *);
 } hc_driver_t;
 

uspace/lib/usbhost/src/hcd.c

@@ -1 +1 @@
 /*
+ * Copyright (c) 2025 Jiri Svoboda
  * Copyright (c) 2011 Jan Vesely
  * Copyright (c) 2018 Ondrej Hlavaty
@@ -58 +59 @@
 int hc_dev_remove(ddf_dev_t *);
 int hc_dev_gone(ddf_dev_t *);
+int hc_dev_quiesce(ddf_dev_t *);
 int hc_fun_online(ddf_fun_t *);
 int hc_fun_offline(ddf_fun_t *);
@@ -65 +67 @@
         .dev_remove = hc_dev_remove,
         .dev_gone = hc_dev_gone,
+        .dev_quiesce = hc_dev_quiesce,
         .fun_online = hc_fun_online,
         .fun_offline = hc_fun_offline,
@@ -358 +361 @@
 }
 
+errno_t hc_dev_quiesce(ddf_dev_t *dev)
+{
+        errno_t err = ENOTSUP;
+        hc_device_t *hcd = dev_to_hcd(dev);
+
+        if (hc_driver->hc_quiesce)
+                err = hc_driver->hc_quiesce(hcd);
+
+        return err;
+}
+
 errno_t hc_fun_online(ddf_fun_t *fun)
 {