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authorAlan Stern <stern@rowland.harvard.edu>2006-05-19 16:52:35 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-21 15:04:12 -0700
commitc8155cc5d839838f8425dbea568fc537337176a7 (patch)
treefc50ffe774fa59a1a3d18e8543bb7e04d1e80726 /drivers/usb/host/uhci-hcd.h
parentcaf3827a65af476c71eaeb79636869a4ab128d48 (diff)
[PATCH] UHCI: remove ISO TDs as they are used
This patch (as690) does the same thing for ISO TDs as as680 did for non-ISO TDs: free them as they are used rather than all at once when an URB is complete. At the same time it fixes a minor buglet (I'm not aware of it ever affecting anyone): An ISO TD should be retired when its frame is over, regardless of whether or not the hardware has marked it inactive. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/uhci-hcd.h')
-rw-r--r--drivers/usb/host/uhci-hcd.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index eaac6ddf03a..469b4268b85 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -128,8 +128,6 @@ struct uhci_qh {
__le32 element; /* Queue element (TD) pointer */
/* Software fields */
- dma_addr_t dma_handle;
-
struct list_head node; /* Node in the list of QHs */
struct usb_host_endpoint *hep; /* Endpoint information */
struct usb_device *udev;
@@ -138,13 +136,19 @@ struct uhci_qh {
struct uhci_td *dummy_td; /* Dummy TD to end the queue */
struct uhci_td *post_td; /* Last TD completed */
+ struct usb_iso_packet_descriptor *iso_packet_desc;
+ /* Next urb->iso_frame_desc entry */
unsigned long advance_jiffies; /* Time of last queue advance */
unsigned int unlink_frame; /* When the QH was unlinked */
unsigned int period; /* For Interrupt and Isochronous QHs */
+ unsigned int iso_frame; /* Frame # for iso_packet_desc */
+ int iso_status; /* Status for Isochronous URBs */
int state; /* QH_STATE_xxx; see above */
int type; /* Queue type (control, bulk, etc) */
+ dma_addr_t dma_handle;
+
unsigned int initial_toggle:1; /* Endpoint's current toggle value */
unsigned int needs_fixup:1; /* Must fix the TD toggle values */
unsigned int is_stopped:1; /* Queue was stopped by error/unlink */
@@ -386,6 +390,8 @@ struct uhci_hcd {
unsigned int frame_number; /* As of last check */
unsigned int is_stopped;
#define UHCI_IS_STOPPED 9999 /* Larger than a frame # */
+ unsigned int last_iso_frame; /* Frame of last scan */
+ unsigned int cur_iso_frame; /* Frame for current scan */
unsigned int scan_in_progress:1; /* Schedule scan is running */
unsigned int need_rescan:1; /* Redo the schedule scan */