EHCD can handle any transfer length as long as there is enough free heap space left, hence set the theoretical max number SIZE_MAX.
Signed-off-by: Bin Meng bmeng.cn@gmail.com ---
drivers/usb/host/ehci-hcd.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 3243c1d..be3e842 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1596,6 +1596,17 @@ static int ehci_destroy_int_queue(struct udevice *dev, struct usb_device *udev, return _ehci_destroy_int_queue(udev, queue); }
+static int ehci_get_max_xfer_size(struct udevice *dev, size_t *size) +{ + /* + * EHCD can handle any transfer length as long as there is enough + * free heap space left, hence set the theoretical max number here. + */ + *size = SIZE_MAX; + + return 0; +} + int ehci_register(struct udevice *dev, struct ehci_hccr *hccr, struct ehci_hcor *hcor, const struct ehci_ops *ops, uint tweaks, enum usb_init_type init) @@ -1658,6 +1669,7 @@ struct dm_usb_ops ehci_usb_ops = { .create_int_queue = ehci_create_int_queue, .poll_int_queue = ehci_poll_int_queue, .destroy_int_queue = ehci_destroy_int_queue, + .get_max_xfer_size = ehci_get_max_xfer_size, };
#endif