Changeset 71ed4849 in mainline for uspace/lib/usb/src/recognise.c

Timestamp:

2010-12-28T14:00:36Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

8f8a0cd6

Parents:

de2c901

Message:

Connecting to "parent" host controller

USB drivers can now connect to host controller drivers they physically
belong to (so far, everything connected to VHC).

Each USB device must implement the USB interface of libdrv to allow
this (it is absolutely neccesary for hubs).

USB drivers can use usb_drv_hc_connect() to connect to "their" host
controller.

Child devices created with usb_drv_register_child_in_devman()are set
to handle this connection automatically.

UHCI and VHC drivers were updated.

File:

• uspace/lib/usb/src/recognise.c (modified) (3 diffs)

uspace/lib/usb/src/recognise.c

@@ -33 +33 @@
  * @brief Functions for recognising kind of attached devices.
  */
+#include <usb_iface.h>
 #include <usb/usbdrv.h>
 #include <usb/classes/classes.h>
@@ -38 +39 @@
 #include <errno.h>
 
+static int usb_iface_get_hc_handle(device_t *dev, devman_handle_t *handle)
+{
+        assert(dev);
+        assert(dev->parent != NULL);
+
+        device_t *parent = dev->parent;
+
+        if (parent->ops && parent->ops->interfaces[USB_DEV_IFACE]) {
+                usb_iface_t *usb_iface
+                    = (usb_iface_t *) parent->ops->interfaces[USB_DEV_IFACE];
+                assert(usb_iface != NULL);
+                if (usb_iface->get_hc_handle) {
+                        int rc = usb_iface->get_hc_handle(parent, handle);
+                        return rc;
+                }
+        }
+
+        return ENOTSUP;
+}
+
+static usb_iface_t usb_iface = {
+        .get_hc_handle = usb_iface_get_hc_handle
+};
+
+static device_ops_t child_ops = {
+        .interfaces[USB_DEV_IFACE] = &usb_iface
+};
 
 #define BCD_INT(a) (((unsigned int)(a)) / 256)
@@ -285 +313 @@
                 goto failure;
         }
+        child->parent = parent;
         child->name = child_name;
+        child->ops = &child_ops;
         
         rc = usb_drv_create_device_match_ids(hc, &child->match_ids, address);