diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2017-09-07 06:13:19 -0700 |
|---|---|---|
| committer | Marek Vasut <marek.vasut+renesas@gmail.com> | 2017-09-27 12:12:22 +0200 |
| commit | a23aa66baa3725e8707da46b18c645ad1a7243a0 (patch) | |
| tree | 67a13a7ec5437e4714595133f407bd9e113f4036 /drivers/usb/host/ehci-hcd.c | |
| parent | 022ceacaf8a6a67f86f0a5ed8f6ce6b2f6ab73a4 (diff) | |
dm: usb: ehci: Implement get_max_xfer_size() operation
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>
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 3243c1d1cf..be3e842dcc 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 |