mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
fc4e404d58
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
111 lines
2.4 KiB
C
111 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Freescale QUICC Engine USB Host Controller Driver
|
|
*
|
|
* Copyright (c) Freescale Semicondutor, Inc. 2006.
|
|
* Shlomi Gridish <gridish@freescale.com>
|
|
* Jerry Huang <Chang-Ming.Huang@freescale.com>
|
|
* Copyright (c) Logic Product Development, Inc. 2007
|
|
* Peter Barada <peterb@logicpd.com>
|
|
* Copyright (c) MontaVista Software, Inc. 2008.
|
|
* Anton Vorontsov <avorontsov@ru.mvista.com>
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/list.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/usb/hcd.h>
|
|
#include "fhci.h"
|
|
|
|
static void init_td(struct td *td)
|
|
{
|
|
memset(td, 0, sizeof(*td));
|
|
INIT_LIST_HEAD(&td->node);
|
|
INIT_LIST_HEAD(&td->frame_lh);
|
|
}
|
|
|
|
static void init_ed(struct ed *ed)
|
|
{
|
|
memset(ed, 0, sizeof(*ed));
|
|
INIT_LIST_HEAD(&ed->td_list);
|
|
INIT_LIST_HEAD(&ed->node);
|
|
}
|
|
|
|
static struct td *get_empty_td(struct fhci_hcd *fhci)
|
|
{
|
|
struct td *td;
|
|
|
|
if (!list_empty(&fhci->empty_tds)) {
|
|
td = list_entry(fhci->empty_tds.next, struct td, node);
|
|
list_del(fhci->empty_tds.next);
|
|
} else {
|
|
td = kmalloc(sizeof(*td), GFP_ATOMIC);
|
|
if (!td)
|
|
fhci_err(fhci, "No memory to allocate to TD\n");
|
|
else
|
|
init_td(td);
|
|
}
|
|
|
|
return td;
|
|
}
|
|
|
|
void fhci_recycle_empty_td(struct fhci_hcd *fhci, struct td *td)
|
|
{
|
|
init_td(td);
|
|
list_add(&td->node, &fhci->empty_tds);
|
|
}
|
|
|
|
struct ed *fhci_get_empty_ed(struct fhci_hcd *fhci)
|
|
{
|
|
struct ed *ed;
|
|
|
|
if (!list_empty(&fhci->empty_eds)) {
|
|
ed = list_entry(fhci->empty_eds.next, struct ed, node);
|
|
list_del(fhci->empty_eds.next);
|
|
} else {
|
|
ed = kmalloc(sizeof(*ed), GFP_ATOMIC);
|
|
if (!ed)
|
|
fhci_err(fhci, "No memory to allocate to ED\n");
|
|
else
|
|
init_ed(ed);
|
|
}
|
|
|
|
return ed;
|
|
}
|
|
|
|
void fhci_recycle_empty_ed(struct fhci_hcd *fhci, struct ed *ed)
|
|
{
|
|
init_ed(ed);
|
|
list_add(&ed->node, &fhci->empty_eds);
|
|
}
|
|
|
|
struct td *fhci_td_fill(struct fhci_hcd *fhci, struct urb *urb,
|
|
struct urb_priv *urb_priv, struct ed *ed, u16 index,
|
|
enum fhci_ta_type type, int toggle, u8 *data, u32 len,
|
|
u16 interval, u16 start_frame, bool ioc)
|
|
{
|
|
struct td *td = get_empty_td(fhci);
|
|
|
|
if (!td)
|
|
return NULL;
|
|
|
|
td->urb = urb;
|
|
td->ed = ed;
|
|
td->type = type;
|
|
td->toggle = toggle;
|
|
td->data = data;
|
|
td->len = len;
|
|
td->iso_index = index;
|
|
td->interval = interval;
|
|
td->start_frame = start_frame;
|
|
td->ioc = ioc;
|
|
td->status = USB_TD_OK;
|
|
|
|
urb_priv->tds[index] = td;
|
|
|
|
return td;
|
|
}
|