vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Set UHCI low-speed flag

Browse source
This commit is contained in:
Aleš Nesrsta 2010-09-18 10:56:52 +02:00 committed by Vladimir 'phcoder' Serbinenko
parent 70770806f3
commit b9c7e9d400
1 changed files with 5 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
grub-core/bus/usb/uhci.c
View file

@ -414,7 +414,7 @@ static grub_uhci_td_t
grub_uhci_transaction (struct grub_uhci *u, unsigned int endp,
grub_transfer_type_t type, unsigned int addr,
unsigned int toggle, grub_size_t size,
grub_uint32_t data)
grub_uint32_t data, grub_usb_speed_t speed)
{
grub_uhci_td_t td;
static const unsigned int tf[] = { 0x69, 0xE1, 0x2D };
@ -439,7 +439,8 @@ grub_uhci_transaction (struct grub_uhci *u, unsigned int endp,
td->linkptr = 1;
/* Active! Only retry a transfer 3 times. */
td->ctrl_status = (1 << 23) | (3 << 27);
td->ctrl_status = (1 << 23) | (3 << 27) |
((speed == GRUB_USB_SPEED_LOW) ? (1 << 26) : 0);
/* If zero bytes are transmitted, size is 0x7FF. Otherwise size is
size-1. */
@ -495,7 +496,8 @@ grub_uhci_setup_transfer (grub_usb_controller_t dev,
td = grub_uhci_transaction (u, transfer->endpoint & 15, tr->pid,
transfer->devaddr, tr->toggle,
tr->size, tr->data);
tr->size, tr->data,
transfer->dev->speed);
if (! td)
{
grub_size_t actual = 0;