diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/bus/usb.c | 4 | ||||
| -rw-r--r-- | src/drivers/usb/xhci.c | 2 | ||||
| -rw-r--r-- | src/drivers/usb/xhci.h | 3 |
3 files changed, 7 insertions, 2 deletions
diff --git a/src/drivers/bus/usb.c b/src/drivers/bus/usb.c index 22a57e6e5..57a253320 100644 --- a/src/drivers/bus/usb.c +++ b/src/drivers/bus/usb.c @@ -1736,11 +1736,12 @@ void free_usb_hub ( struct usb_hub *hub ) { * * @v dev Underlying hardware device * @v ports Number of root hub ports + * @v mtu Largest transfer allowed on the bus * @v op Host controller operations * @ret bus USB bus, or NULL on allocation failure */ struct usb_bus * alloc_usb_bus ( struct device *dev, unsigned int ports, - struct usb_host_operations *op ) { + size_t mtu, struct usb_host_operations *op ) { struct usb_bus *bus; /* Allocate and initialise structure */ @@ -1749,6 +1750,7 @@ struct usb_bus * alloc_usb_bus ( struct device *dev, unsigned int ports, goto err_alloc_bus; bus->name = dev->name; bus->dev = dev; + bus->mtu = mtu; bus->op = op; INIT_LIST_HEAD ( &bus->devices ); INIT_LIST_HEAD ( &bus->hubs ); diff --git a/src/drivers/usb/xhci.c b/src/drivers/usb/xhci.c index 5d067bd05..34290774a 100644 --- a/src/drivers/usb/xhci.c +++ b/src/drivers/usb/xhci.c @@ -3117,7 +3117,7 @@ static int xhci_probe ( struct pci_device *pci ) { goto err_reset; /* Allocate USB bus */ - xhci->bus = alloc_usb_bus ( &pci->dev, xhci->ports, + xhci->bus = alloc_usb_bus ( &pci->dev, xhci->ports, XHCI_MTU, &xhci_operations ); if ( ! xhci->bus ) { rc = -ENOMEM; diff --git a/src/drivers/usb/xhci.h b/src/drivers/usb/xhci.h index 269f50b82..303208071 100644 --- a/src/drivers/usb/xhci.h +++ b/src/drivers/usb/xhci.h @@ -24,6 +24,9 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); */ #define XHCI_MIN_ALIGN 64 +/** Maximum transfer size */ +#define XHCI_MTU 65536 + /** xHCI PCI BAR */ #define XHCI_BAR PCI_BASE_ADDRESS_0 |