Changeset b4b534ac in mainline for uspace/drv/bus/usb/ehci/hw_struct/link_pointer.h

Timestamp:

2016-07-22T08:24:47Z (8 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

f76d2c2

Parents:

5b18137 (diff), 8351f9a4 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge from lp:~jan.vesely/helenos/usb

File:

• uspace/drv/bus/usb/ehci/hw_struct/link_pointer.h (moved) (moved from uspace/lib/usb/include/usb/ddfiface.h ) (2 diffs)

uspace/drv/bus/usb/ehci/hw_struct/link_pointer.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2011 Vojtech Horky
+ * Copyright (c) 2013 Jan Vesely
  * All rights reserved.
  *
@@ -26 +26 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
-/** @addtogroup libusb
+/** @addtogroup drvusbehci
  * @{
  */
 /** @file
- * Implementations of DDF interfaces functions.
+ * @brief EHCI driver
  */
-
-#ifndef LIBUSB_DDFIFACE_H_
-#define LIBUSB_DDFIFACE_H_
+#ifndef DRV_EHCI_HW_STRUCT_LINK_POINTER_H
+#define DRV_EHCI_HW_STRUCT_LINK_POINTER_H
 
 #include <sys/types.h>
-#include <usb_iface.h>
 
-extern int usb_iface_get_hc_handle_device_impl(ddf_fun_t *, devman_handle_t *);
-extern int usb_iface_get_my_address_forward_impl(ddf_fun_t *, usb_address_t *);
-extern usb_iface_t usb_iface_hub_impl;
+/** EHCI link pointer, used by many data structures */
+typedef volatile uint32_t link_pointer_t;
 
-extern int usb_iface_get_my_address_from_device_data(ddf_fun_t *, usb_address_t *);
-extern usb_iface_t usb_iface_hub_child_impl;
+#define LINK_POINTER_ADDRESS_MASK   0xfffffff0 /* upper 28 bits */
 
-extern int usb_iface_get_hc_handle_hc_impl(ddf_fun_t *, devman_handle_t *);
+#define LINK_POINTER_TERMINATE_FLAG   (1 << 0)
+
+enum {
+        LINK_POINTER_TYPE_iTD  = 0x0 << 1,
+        LINK_POINTER_TYPE_QH   = 0x1 << 1,
+        LINK_POINTER_TYPE_siTD = 0x2 << 1,
+        LINK_POINTER_TYPE_FSTN = 0x3 << 1,
+        LINK_POINTER_TYPE_MASK = 0x3 << 1,
+};
+
+#define LINK_POINTER_QH(address) \
+        ((address & LINK_POINTER_ADDRESS_MASK) | LINK_POINTER_TYPE_QH)
+
+#define LINK_POINTER_TD(address) \
+        (address & LINK_POINTER_ADDRESS_MASK)
+
+#define LINK_POINTER_TERM \
+        ((link_pointer_t)LINK_POINTER_TERMINATE_FLAG)
 
 #endif
-
 /**
  * @}