d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Reduce the diffs between NetBSD and our version where appropriate

Browse Source 
(comments, etc.)
This commit is contained in:
Josef Karthauser 2002-01-26 13:08:57 +00:00
parent 31c1f0005b
commit baf3f0817e
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/dev/usb/uhcivar.h
View File

@ -41,13 +41,14 @@
/*
* To avoid having 1024 TDs for each isochronous transfer we introduce
* a virtual frame list. Every UHCI_VFRAMELIST_COUNT entries in the real
* frame list points to a non-active TD. These, in turn, which form the
* frame list points to a non-active TD. These, in turn, form the
* starts of the virtual frame list. This also has the advantage that it
* simplifies linking in/out TD/QH in the schedule.
* simplifies linking in/out of TDs/QHs in the schedule.
* Furthermore, initially each of the inactive TDs point to an inactive
* QH that forms the start of the interrupt traffic for that slot.
* Each of these QHs point to the same QH that is the start of control
* traffic.
* traffic. This QH points at another QH which is the start of the
* bulk traffic.
*
* UHCI_VFRAMELIST_COUNT should be a power of 2 and <= UHCI_FRAMELIST_COUNT.
*/
@ -168,7 +169,7 @@ typedef struct uhci_softc {
LIST_HEAD(, uhci_intr_info) sc_intrhead;
/* Info for the root hub interrupt channel. */
int sc_ival; /* time between root hug intrs */
int sc_ival; /* time between root hub intrs */
usbd_xfer_handle sc_has_timo; /* root hub interrupt transfer */
char sc_vflock; /* for lock virtual frame list */
@ -183,7 +184,7 @@ typedef struct uhci_softc {
void *sc_shutdownhook; /* cookie from shutdown hook */
#endif
device_ptr_t sc_child; /* /dev/usb device */
device_ptr_t sc_child; /* /dev/usb# device */
} uhci_softc_t;
usbd_status uhci_init(uhci_softc_t *);