+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* usb_match_device() modified from Linux kernel v4.0.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm/lists.h>
#include <dm/uclass-internal.h>
-DECLARE_GLOBAL_DATA_PTR;
-
extern bool usb_started; /* flag for the started/stopped USB status */
static bool asynch_allowed;
return ops->reset_root_port(bus, udev);
}
+int usb_update_hub_device(struct usb_device *udev)
+{
+ struct udevice *bus = udev->controller_dev;
+ struct dm_usb_ops *ops = usb_get_ops(bus);
+
+ if (!ops->update_hub_device)
+ return -ENOSYS;
+
+ return ops->update_hub_device(bus, udev);
+}
+
+int usb_get_max_xfer_size(struct usb_device *udev, size_t *size)
+{
+ struct udevice *bus = udev->controller_dev;
+ struct dm_usb_ops *ops = usb_get_ops(bus);
+
+ if (!ops->get_max_xfer_size)
+ return -ENOSYS;
+
+ return ops->get_max_xfer_size(bus, size);
+}
+
int usb_stop(void)
{
struct udevice *bus;
+ struct udevice *rh;
struct uclass *uc;
struct usb_uclass_priv *uc_priv;
int err = 0, ret;
ret = device_remove(bus, DM_REMOVE_NORMAL);
if (ret && !err)
err = ret;
- }
-#ifdef CONFIG_BLK
- ret = blk_unbind_all(IF_TYPE_USB);
- if (ret && !err)
- err = ret;
-#endif
-#ifdef CONFIG_SANDBOX
- struct udevice *dev;
- /* Reset all enulation devices */
- ret = uclass_get(UCLASS_USB_EMUL, &uc);
- if (ret)
- return ret;
+ /* Locate root hub device */
+ device_find_first_child(bus, &rh);
+ if (rh) {
+ /*
+ * All USB devices are children of root hub.
+ * Unbinding root hub will unbind all of its children.
+ */
+ ret = device_unbind(rh);
+ if (ret && !err)
+ err = ret;
+ }
+ }
- uclass_foreach_dev(dev, uc)
- usb_emul_reset(dev);
-#endif
#ifdef CONFIG_USB_STORAGE
usb_stor_reset();
#endif
- usb_hub_reset();
uc_priv->companion_device_count = 0;
usb_started = 0;
int ret;
asynch_allowed = 1;
- usb_hub_reset();
ret = uclass_get(UCLASS_USB, &uc);
if (ret)
/* init low_level USB */
printf("USB%d: ", count);
count++;
+
+#ifdef CONFIG_SANDBOX
+ /*
+ * For Sandbox, we need scan the device tree each time when we
+ * start the USB stack, in order to re-create the emulated USB
+ * devices and bind drivers for them before we actually do the
+ * driver probe.
+ */
+ ret = dm_scan_fdt_dev(bus);
+ if (ret) {
+ printf("Sandbox USB device scan failed (%d)\n", ret);
+ continue;
+ }
+#endif
+
ret = device_probe(bus);
if (ret == -ENODEV) { /* No such device. */
puts("Port not available.\n");
}
/* returns 0 if no match, 1 if match */
-int usb_match_device(const struct usb_device_descriptor *desc,
- const struct usb_device_id *id)
+static int usb_match_device(const struct usb_device_descriptor *desc,
+ const struct usb_device_id *id)
{
if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
id->idVendor != le16_to_cpu(desc->idVendor))
}
/* returns 0 if no match, 1 if match */
-int usb_match_one_id_intf(const struct usb_device_descriptor *desc,
- const struct usb_interface_descriptor *int_desc,
- const struct usb_device_id *id)
+static int usb_match_one_id_intf(const struct usb_device_descriptor *desc,
+ const struct usb_interface_descriptor *int_desc,
+ const struct usb_device_id *id)
{
/* The interface class, subclass, protocol and number should never be
* checked for a match if the device class is Vendor Specific,
}
/* returns 0 if no match, 1 if match */
-int usb_match_one_id(struct usb_device_descriptor *desc,
- struct usb_interface_descriptor *int_desc,
- const struct usb_device_id *id)
+static int usb_match_one_id(struct usb_device_descriptor *desc,
+ struct usb_interface_descriptor *int_desc,
+ const struct usb_device_id *id)
{
if (!usb_match_device(desc, id))
return 0;
return change;
}
-int usb_child_post_bind(struct udevice *dev)
+static int usb_child_post_bind(struct udevice *dev)
{
struct usb_dev_platdata *plat = dev_get_parent_platdata(dev);
- const void *blob = gd->fdt_blob;
int val;
- if (dev_of_offset(dev) == -1)
+ if (!dev_of_valid(dev))
return 0;
/* We only support matching a few things */
- val = fdtdec_get_int(blob, dev_of_offset(dev), "usb,device-class", -1);
+ val = dev_read_u32_default(dev, "usb,device-class", -1);
if (val != -1) {
plat->id.match_flags |= USB_DEVICE_ID_MATCH_DEV_CLASS;
plat->id.bDeviceClass = val;
}
- val = fdtdec_get_int(blob, dev_of_offset(dev), "usb,interface-class",
- -1);
+ val = dev_read_u32_default(dev, "usb,interface-class", -1);
if (val != -1) {
plat->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS;
plat->id.bInterfaceClass = val;