Changeset 4c7c251 in mainline for uspace/drv/uhci-hcd/pci.c

Timestamp:

2011-03-01T23:08:25Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

37b1651d

Parents:

ac8285d (diff), 0e2fdcf (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:

New PCI device interface, USB legacy disabled during device initialization

File:

• uspace/drv/uhci-hcd/pci.c (modified) (2 diffs)

uspace/drv/uhci-hcd/pci.c

@@ -40 +40 @@
 
 #include <usb/debug.h>
+#include <pci_dev_iface.h>
 
 #include "pci.h"
@@ -128 +129 @@
         return enabled ? EOK : EIO;
 }
+/*----------------------------------------------------------------------------*/
+int pci_disable_legacy(ddf_dev_t *device)
+{
+        assert(device);
+        int parent_phone = devman_parent_device_connect(device->handle,
+                IPC_FLAG_BLOCKING);
+        if (parent_phone < 0) {
+                return parent_phone;
+        }
+
+        /* See UHCI design guide for these values,
+         * write all WC bits in USB legacy register */
+        sysarg_t address = 0xc0;
+        sysarg_t value = 0x8f00;
+
+  int rc = async_req_3_0(parent_phone, DEV_IFACE_ID(PCI_DEV_IFACE),
+            IPC_M_CONFIG_SPACE_WRITE_16, address, value);
+        async_hangup(parent_phone);
+
+  return rc;
+}
+/*----------------------------------------------------------------------------*/
 /**
  * @}