haraldwolff/qemu-patch-raspberry4
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ehci: drop old stuff

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Drop the "ehci under development" banner.
Drop unused & inactive (#if 0) code.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-02-27 13:08:25 +01:00
parent df7871851e
commit 01cd4e98dc
1 changed files with 1 additions and 29 deletions
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30
hw/usb-ehci.c
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@ -1471,36 +1471,10 @@ static int ehci_process_itd(EHCIState *ehci,
}
qemu_sglist_destroy(&ehci->isgl);
#if 0
/* In isoch, there is no facility to indicate a NAK so let's
* instead just complete a zero-byte transaction. Setting
* DBERR seems too draconian.
*/
if (ret == USB_RET_NAK) {
if (ehci->isoch_pause > 0) {
DPRINTF("ISOCH: received a NAK but paused so returning\n");
ehci->isoch_pause--;
return 0;
} else if (ehci->isoch_pause == -1) {
DPRINTF("ISOCH: recv NAK & isoch pause inactive, setting\n");
// Pause frindex for up to 50 msec waiting for data from
// remote
ehci->isoch_pause = 50;
return 0;
} else {
DPRINTF("ISOCH: isoch pause timeout! return 0\n");
ret = 0;
}
} else {
DPRINTF("ISOCH: received ACK, clearing pause\n");
ehci->isoch_pause = -1;
}
#else
if (ret == USB_RET_NAK) {
/* no data for us, so do a zero-length transfer */
ret = 0;
}
#endif
if (ret >= 0) {
if (!dir) {
@ -2389,8 +2363,6 @@ static int usb_ehci_initfn(PCIDevice *dev)
memory_region_init_io(&s->mem, &ehci_mem_ops, s, "ehci", MMIO_SIZE);
pci_register_bar(&s->dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
fprintf(stderr, "*** EHCI support is under development ***\n");
return 0;
}