mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
b918a0c6f6
If a transfer / urb times-out, properly remove it from the schedule, rather then letting it sit on the ep head. This stops the musb code from getting confused and refusing to queue further transfers after a timeout. Tested by unplugging a usb-keyboard, replugging it and doing a usb-reset, before this commit the keyboard would not work after the usb-reset. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/*
|
|
* MUSB OTG driver host defines
|
|
*
|
|
* Copyright 2005 Mentor Graphics Corporation
|
|
* Copyright (C) 2005-2006 by Texas Instruments
|
|
* Copyright (C) 2006-2007 Nokia Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
|
|
* 02110-1301 USA
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
|
|
* NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#ifndef _MUSB_HOST_H
|
|
#define _MUSB_HOST_H
|
|
#ifdef __UBOOT__
|
|
#include "usb-compat.h"
|
|
#endif
|
|
|
|
static inline struct usb_hcd *musb_to_hcd(struct musb *musb)
|
|
{
|
|
return container_of((void *) musb, struct usb_hcd, hcd_priv);
|
|
}
|
|
|
|
static inline struct musb *hcd_to_musb(struct usb_hcd *hcd)
|
|
{
|
|
return (struct musb *) (hcd->hcd_priv);
|
|
}
|
|
|
|
/* stored in "usb_host_endpoint.hcpriv" for scheduled endpoints */
|
|
struct musb_qh {
|
|
struct usb_host_endpoint *hep; /* usbcore info */
|
|
struct usb_device *dev;
|
|
struct musb_hw_ep *hw_ep; /* current binding */
|
|
|
|
struct list_head ring; /* of musb_qh */
|
|
/* struct musb_qh *next; */ /* for periodic tree */
|
|
u8 mux; /* qh multiplexed to hw_ep */
|
|
|
|
unsigned offset; /* in urb->transfer_buffer */
|
|
unsigned segsize; /* current xfer fragment */
|
|
|
|
u8 type_reg; /* {rx,tx} type register */
|
|
u8 intv_reg; /* {rx,tx} interval register */
|
|
u8 addr_reg; /* device address register */
|
|
u8 h_addr_reg; /* hub address register */
|
|
u8 h_port_reg; /* hub port register */
|
|
|
|
u8 is_ready; /* safe to modify hw_ep */
|
|
u8 type; /* XFERTYPE_* */
|
|
u8 epnum;
|
|
u8 hb_mult; /* high bandwidth pkts per uf */
|
|
u16 maxpacket;
|
|
u16 frame; /* for periodic schedule */
|
|
unsigned iso_idx; /* in urb->iso_frame_desc[] */
|
|
};
|
|
|
|
/* map from control or bulk queue head to the first qh on that ring */
|
|
static inline struct musb_qh *first_qh(struct list_head *q)
|
|
{
|
|
if (list_empty(q))
|
|
return NULL;
|
|
return list_entry(q->next, struct musb_qh, ring);
|
|
}
|
|
|
|
|
|
extern void musb_root_disconnect(struct musb *musb);
|
|
|
|
struct usb_hcd;
|
|
|
|
extern int musb_hub_status_data(struct usb_hcd *hcd, char *buf);
|
|
extern int musb_hub_control(struct usb_hcd *hcd,
|
|
u16 typeReq, u16 wValue, u16 wIndex,
|
|
char *buf, u16 wLength);
|
|
|
|
extern const struct hc_driver musb_hc_driver;
|
|
|
|
static inline struct urb *next_urb(struct musb_qh *qh)
|
|
{
|
|
struct list_head *queue;
|
|
|
|
if (!qh)
|
|
return NULL;
|
|
queue = &qh->hep->urb_list;
|
|
if (list_empty(queue))
|
|
return NULL;
|
|
return list_entry(queue->next, struct urb, urb_list);
|
|
}
|
|
|
|
#ifdef __UBOOT__
|
|
int musb_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
|
|
int musb_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
|
|
#endif
|
|
#endif /* _MUSB_HOST_H */
|